Pathology, Veterinary: The field of veterinary medicine concerned with the causes of and changes produced in the body by disease.Patents as Topic: Exclusive legal rights or privileges applied to inventions, plants, etc.Chromatography, Gas: Fractionation of a vaporized sample as a consequence of partition between a mobile gaseous phase and a stationary phase held in a column. Two types are gas-solid chromatography, where the fixed phase is a solid, and gas-liquid, in which the stationary phase is a nonvolatile liquid supported on an inert solid matrix.Flame Ionization: Pyrolysis of organic compounds at the temperature of a hydrogen-air flame to produce ionic intermediates which can be collected and the resulting ion current measured by gas chromatography.Gas Chromatography-Mass Spectrometry: A microanalytical technique combining mass spectrometry and gas chromatography for the qualitative as well as quantitative determinations of compounds.Volatile Organic Compounds: Organic compounds that have a relatively high VAPOR PRESSURE at room temperature.Capillaries: The minute vessels that connect the arterioles and venules.Ciprofloxacin: A broad-spectrum antimicrobial carboxyfluoroquinoline.Microbial Sensitivity Tests: Any tests that demonstrate the relative efficacy of different chemotherapeutic agents against specific microorganisms (i.e., bacteria, fungi, viruses).Capillary Resistance: The vascular resistance to the flow of BLOOD through the CAPILLARIES portions of the peripheral vascular bed.Anti-Bacterial Agents: Substances that reduce the growth or reproduction of BACTERIA.Bacteria: One of the three domains of life (the others being Eukarya and ARCHAEA), also called Eubacteria. They are unicellular prokaryotic microorganisms which generally possess rigid cell walls, multiply by cell division, and exhibit three principal forms: round or coccal, rodlike or bacillary, and spiral or spirochetal. Bacteria can be classified by their response to OXYGEN: aerobic, anaerobic, or facultatively anaerobic; by the mode by which they obtain their energy: chemotrophy (via chemical reaction) or PHOTOTROPHY (via light reaction); for chemotrophs by their source of chemical energy: CHEMOLITHOTROPHY (from inorganic compounds) or chemoorganotrophy (from organic compounds); and by their source for CARBON; NITROGEN; etc.; HETEROTROPHY (from organic sources) or AUTOTROPHY (from CARBON DIOXIDE). They can also be classified by whether or not they stain (based on the structure of their CELL WALLS) with CRYSTAL VIOLET dye: gram-negative or gram-positive.Drug Resistance, Bacterial: The ability of bacteria to resist or to become tolerant to chemotherapeutic agents, antimicrobial agents, or antibiotics. This resistance may be acquired through gene mutation or foreign DNA in transmissible plasmids (R FACTORS).Blister: Visible accumulations of fluid within or beneath the epidermis.Permeability: Property of membranes and other structures to permit passage of light, heat, gases, liquids, metabolites, and mineral ions.Cell Membrane Permeability: A quality of cell membranes which permits the passage of solvents and solutes into and out of cells.Drug Packaging: Containers, packaging, and packaging materials for drugs and BIOLOGICAL PRODUCTS. These include those in ampule, capsule, tablet, solution or other forms. Packaging includes immediate-containers, secondary-containers, and cartons. In the United States, such packaging is controlled under the Federal Food, Drug, and Cosmetic Act which also stipulates requirements for tamper-resistance and child-resistance. Similar laws govern use elsewhere. (From Code of Federal Regulations, 21 CFR 1 Section 210, 1993) DRUG LABELING is also available.Vasoconstrictor Agents: Drugs used to cause constriction of the blood vessels.Vasoconstriction: The physiological narrowing of BLOOD VESSELS by contraction of the VASCULAR SMOOTH MUSCLE.Vitis: A plant genus in the family VITACEAE, order Rhamnales, subclass Rosidae. It is a woody vine cultivated worldwide. It is best known for grapes, the edible fruit and used to make WINE and raisins.Product Labeling: Use of written, printed, or graphic materials upon or accompanying a product or its container or wrapper. It includes purpose, effect, description, directions, hazards, warnings, and other relevant information.Proanthocyanidins: Dimers and oligomers of flavan-3-ol units (CATECHIN analogs) linked mainly through C4 to C8 bonds to leucoanthocyanidins. They are structurally similar to ANTHOCYANINS but are the result of a different fork in biosynthetic pathways.Wine: Fermented juice of fresh grapes or of other fruit or plant products used as a beverage.Rosales: An order of the ANGIOSPERMS, subclass Rosidae. Its members include some of the most known ornamental and edible plants of temperate zones including roses, apples, cherries, and peaches.Safety: Freedom from exposure to danger and protection from the occurrence or risk of injury or loss. It suggests optimal precautions in the workplace, on the street, in the home, etc., and includes personal safety as well as the safety of property.Information Services: Organized services to provide information on any questions an individual might have using databases and other sources. (From Random House Unabridged Dictionary, 2d ed)Shock, Surgical: A type of shock that occurs as a result of a surgical procedure.Shock, Septic: Sepsis associated with HYPOTENSION or hypoperfusion despite adequate fluid resuscitation. Perfusion abnormalities may include, but are not limited to LACTIC ACIDOSIS; OLIGURIA; or acute alteration in mental status.Shock: A pathological condition manifested by failure to perfuse or oxygenate vital organs.Hospitals, Public: Hospitals controlled by various types of government, i.e., city, county, district, state or federal.Shock, Hemorrhagic: Acute hemorrhage or excessive fluid loss resulting in HYPOVOLEMIA.Seawater: The salinated water of OCEANS AND SEAS that provides habitat for marine organisms.Heat-Shock Proteins: Proteins which are synthesized in eukaryotic organisms and bacteria in response to hyperthermia and other environmental stresses. They increase thermal tolerance and perform functions essential to cell survival under these conditions.Directories as Topic: Lists of persons or organizations, systematically arranged, usually in alphabetic or classed order, giving address, affiliations, etc., for individuals, and giving address, officers, functions, and similar data for organizations. (ALA Glossary of Library and Information Science, 1983)Epoxy Resins: Polymeric resins derived from OXIRANES and characterized by strength and thermosetting properties. Epoxy resins are often used as dental materials.Root Canal Filling Materials: Materials placed inside a root canal for the purpose of obturating or sealing it. The materials may be gutta-percha, silver cones, paste mixtures, or other substances. (Dorland, 28th ed, p631 & Boucher's Clinical Dental Terminology, 4th ed, p187)Zinc Oxide-Eugenol Cement: Used as a dental cement this is mainly zinc oxide (with strengtheners and accelerators) and eugenol. (Boucher's Clinical Dental Terminology, 4th ed, p50)Fraud: Exploitation through misrepresentation of the facts or concealment of the purposes of the exploiter.Medicare Assignment: Concept referring to the standardized fees for services rendered by health care providers, e.g., laboratories and physicians, and reimbursement for those services under Medicare Part B. It includes acceptance by the physician.Construction Materials: Supplies used in building.Rosaceae: The rose plant family in the order ROSALES and class Magnoliopsida. They are generally woody plants. A number of the species of this family contain cyanogenic compounds.Diverticulitis: Inflammation of a DIVERTICULUM or diverticula.Diverticulitis, Colonic: Inflammation of the COLONIC DIVERTICULA, generally with abscess formation and subsequent perforation.Peristalsis: A movement, caused by sequential muscle contraction, that pushes the contents of the intestines or other tubular organs in one direction.Pectins: High molecular weight polysaccharides present in the cell walls of all plants. Pectins cement cell walls together. They are used as emulsifiers and stabilizers in the food industry. They have been tried for a variety of therapeutic uses including as antidiarrheals, where they are now generally considered ineffective, and in the treatment of hypercholesterolemia.Dietary Fiber: The remnants of plant cell walls that are resistant to digestion by the alimentary enzymes of man. It comprises various polysaccharides and lignins.Constipation: Infrequent or difficult evacuation of FECES. These symptoms are associated with a variety of causes, including low DIETARY FIBER intake, emotional or nervous disturbances, systemic and structural disorders, drug-induced aggravation, and infections.Bombacaceae: A plant family of the order Malvales, subclass Dilleniidae, class Magnoliopsida of tropical trees.Grape Seed Extract: Exudate from seeds of the grape plant Vitis vinifera, composed of oils and secondary plant metabolites (BIOFLAVONOIDS and polyphenols) credited with important medicinal properties.Saudi ArabiaPlant Bark: The outer layer of the woody parts of plants.Vaccinium macrocarpon: A plant species of the family VACCINIUM known for the sour fruit which is sometimes used for urinary tract infections.

Capillary refill and core-peripheral temperature gap as indicators of haemodynamic status in paediatric intensive care patients. (1/47)

OBJECTIVES: Capillary refill time is an important diagnostic adjunct in the acute resuscitation phase of the shocked child. This study assesses its relation to commonly measured haemodynamic parameters in the postresuscitation phase when the child has reached the intensive care unit, and compares this with core-peripheral temperature gap. METHODS: Ninety standardised measurements of capillary refill time were made on 55 patients, who were divided into postcardiac surgery (n = 27), and general (n = 28), most of whom had septic shock (n = 24). A normal capillary refill time was defined as < or = 2 seconds. Measured haemodynamic variables included: cardiac index, central venous pressure, systemic vascular resistance index, stroke volume index (SVI), and blood lactate. Seventy measurements were made on patients while being treated with inotropes or vasodilators. RESULTS: Capillary refill time and temperature gap both correlated poorly with all haemodynamic variables among post-cardiac surgery children. For general patients, capillary refill time was related to SVI and lactate; temperature gap correlated poorly with all variables. General patients with a prolonged capillary refill time had a lower median SVI (28 v 38 ml/m2) but not a higher lactate (1.7 v 1.1 mmol/l). A capillary refill time of > or = 6 seconds had the best predictive value for a reduced SVI. CONCLUSION: Among ventilated, general intensive care patients, capillary refill time is related weakly to blood lactate and SVI. A normal value for capillary refill time of < or = 2 seconds has little predictive value and might be too conservative for this population; septic shock.  (+info)

Vascular and stromal features in the skin of the lower limb in patients with chronic critical limb ischaemia (CLI) and oedema. (2/47)

OBJECTIVE: peripheral oedema is often observed in limbs affected by chronic critical limb ischaemia (CLI) and is mainly subcutaneous in distribution. Previous work has shown that capillary filtration coefficient (CFC) in limbs with CLI and oedema was twice as great as that in the contralateral limb. These changes might be due to morphological changes. Transmission electron microscopy (TEM) was used to examine the morphological features of the capillary walls and surrounding stromal tissues in the skin of these limbs. MATERIAL AND METHODS: eight patients with unilateral CLI and peripheral pitting oedema (four men, four women, a mean age of 81+/-6.9 years) was studied. Skin biopsies were taken from the pulp of the first toe, interdigital space between the first and second digits and dorsal part of forefoot just prior to amputation. RESULTS: stromal oedema and dilated capillaries were most prominent in the distal part of the foot. Some of the capillaries were filled with blood cells and some were empty. The endothelium of the dilated vessels was elongated and distended. In some patients a number of capillaries were collapsed with degenerate endothelial cells. <<<>>>, i.e. large openings, were found between the elongated oedematous endothelial cells. The basal lamina was thickened in all patients. Stromal haemorrhage and degeneration were seen in approximately 50% of patients. CONCLUSION: CLI causes ultrastructural changes in the capillary endothelium and surrounding stroma. The presence of large gaps between endothelial cells as well as an increased capillary pressure may enhance transcapillary transudation, and are most likely the causative factors in the formation of the ischaemic oedema. The stromal haemorrhage as well as degeneration probably signifies a terminal stage of CLI.  (+info)

Fluid flow induces upregulation of synthesis and release of tissue factor pathway inhibitor in vitro. (3/47)

Fluid flow modulates the synthesis and secretion by endothelial cells (ECs) of several proteins that control the hemostatic properties of the vessel wall. Tissue factor pathway inhibitor (TFPI), also synthesized by ECs, is the main downregulator of tissue factor-dependent procoagulant activity. In the present study, we investigated the effect of physiological shear stress on the expression, distribution, and release of TFPI in cultured ECs. The EA.hy926 cell line was grown in a hollow-fiber perfusion system and exposed for variable times to different shear values: 0.27 dyne/cm(2) (minimal flow), 4.1 dyne/cm(2) (venous flow), and 19 dyne/cm(2) (moderate arterial flow). Step increase of the shear stress from 0.27 to 19 dyne/cm(2) induced a sharp increase of TFPI released into the medium and a parallel decrease and redistribution of cell-associated TFPI, which suggests that an acute release of TFPI occurred from the cellular pools. During 24 hours of high shear stress, cell-associated TFPI antigen and mRNA increased time-dependently. Subjecting ECs to steady shear stress for 72 hours also upregulated the expression and production of TFPI, in direct correlation with the degree of the shear. The secretion of TFPI was enhanced 1.9-fold under venous flow and 2.4-fold under arterial flow compared with minimal flow. Equally, cell-associated TFPI antigen and cell surface TFPI activity increased proportionally with the shear stress. The expression of TFPI mRNA, as determined by Northern blotting, increased up to 2-fold in ECs under venous flow and up to 3-fold under arterial flow. These results suggest that shear forces regulate TFPI by modulating its release and gene expression in ECs in vitro.  (+info)

Decrease in coronary blood flow reserve during hyperlipidemia is secondary to an increase in blood viscosity. (4/47)

BACKGROUND: During maximal hyperemia, capillaries provide the greatest resistance to flow. A major determinant of capillary resistance is viscosity. We, therefore, hypothesized that abnormal coronary blood flow (CBF) reserve observed during hyperlipidemia is secondary to increased blood viscosity and not abnormal coronary vasomotion. METHODS AND RESULTS: Maximal hyperemia was induced in 9 dogs using adenosine. Serum triglyceride levels were increased by incremental doses of Intralipid. A good correlation was noted between serum triglyceride levels and blood viscosity (r=0.82). Neither total coronary blood volume nor myocardial blood volume changed with increasing serum triglyceride levels, indicating lack of vasomotion. Myocardial vascular resistance (MVR) increased with increasing triglyceride levels (r=0.84), while hyperemic myocardial blood flow (MBF) decreased (r=-0.64). The decrease in hyperemic MBF was associated with a decrease in blood velocity (r=-0.56). These findings were confirmed with direct intravital microscopic observations in the mice cremaster muscle. CONCLUSIONS: Increasing lipid levels in a fully dilated normal coronary bed causes no change in large or small vessel dimensions. Instead, the increase in blood viscosity causes capillary resistance to rise, which attenuates hyperemic CBF. Therefore, the abnormal CBF reserve associated with hyperlipidemia is due to increase blood viscosity and not abnormal vascular function.  (+info)

Capillary and cell wall permeability to potassium in isolated dog hearts. (5/47)

From venous tracer-dilution curves recorded after 36 pulse injections of 42KCl and 131I-labeled albumin into the coronary artery inflow of 15 isolated canine heart preparations, we calculated maximal fractional extractions (Emax) and capillary permeability-surface area products (PScap) for 42K+ over a range of plasma flows (FP) from 0.3 to 1.7 ml min-1 g-u. At low FP (less than 1.0), Emax was 0.60 +/- 0.0l (mean +/- SD) and PScap was 0.72 +/- 0.20 ml min-1 g-1; at high FP (greater than 1.0), Emax decreased to 0.49 +/- 0.05 and PScap increased to 1.06 +/- 0.18. Continuous recording (gamma detector) of residual myocardial 42K+ in seven hearts showed that the mean fractional escape rate of tracer between 30 and 60 min after injection was 0.011-0.023 min-1; higher rates were observed at high FP, when the residue of 42K+ decreased to less than 10% of the injected dose by 60 min. Using PScap measured at high FP and considering the virtual intracellular volume of distribution for K+ to be 20 ml/g, we calculated the permeability-surface area product for sarcolemma (PScw) as 0.54-0.73 ml min-1 g-1, or about 50% of PScap. Considering sarcolemmal surface area (Scw) as 4,200 cm2/g and capillary surface area (Scap) as 500 cm2/g, cell permeability is low, with Pcw:Pcap being less than 0.08.  (+info)

Postural changes in capillary pressure in the hallux of healthy volunteers. (6/47)

Capillary circulation is delicately regulated by microvascular constriction mechanisms, thereby controlling capillary perfusion and transmural pressure. The influence of posture on capillary flow has been investigated in both diseased and healthy people. However, its influence on capillary pressure has rarely been investigated. We measured capillary pressures in the supine and sitting positions in the hallux of healthy volunteers. The capillaries in the eponychium of the hallux were punctured by using a micropipette connected to a micropressure system (900A, WPI). Also, peripheral arterial and venous pressures were measured in both positions. The rise in systolic capillary pressure from supine to sitting position (32 mmHg; from 39 to 71 mmHg, respectively) was significantly (P < 0.001) smaller than the rise in systolic arterial toe pressure (57 mmHg, from 87 to 144 mmHg, respectively) and venous pressure (41 mmHg, from 26 mmHg to 67 mmHg, respectively). This study shows that the postural rise in precapillary arteriolar pressure is not completely transmitted to the capillaries, probably because of activation of peripheral vasoconstriction mechanisms.  (+info)

Effect of captopril on the release of the components of the renin-angiotensin system into plasma and lymph. (7/47)

The effects of captopril on the intrarenal renin-angiotensin system were assessed from measurements in arterial plasma, renal venous plasma, and renal lymph from salt-depleted dogs. In the basal state, immunoreactive angiotensin II (Ang II) in renal venous plasma averaged only 60 +/- 12% (P less than 0.01) of arterial plasma, although the concentration of Ang II in renal lymph was 2.0 +/- 0.4-fold (P less than 0.05) greater. The Ang II concentration of renal lymph incubated ex vivo at 37 degrees C doubled in 10 to 15 min, which was the time taken to collect renal lymph samples. Compared with arterial plasma, renal lymph contained lower concentrations (P less than 0.01) of renin substrate and angiotensin-converting enzyme but higher concentrations of active (5.3 +/- 2.1-fold) and inactive (8.9 +/- 3.2-fold) renin. Although captopril increased the secretion of active renin into renal venous plasma by six-fold, the secretion of total renin was unchanged because of a reciprocal fall in the secretion of inactive renin. The percent reduction in renal vascular resistance with captopril correlated with the percent fall in Ang II in renal lymph (r = 0.70). IN CONCLUSION: (1) all components of the renin-angiotensin system are represented in the renal interstitium, as reflected in lymph; (2) Ang II concentrations in renal lymph in vivo approximate arterial levels; (3) increased secretion of active renin into plasma during intrarenal infusion of captopril into denervated kidneys is due predominantly to renin activation; and (4) renal vascular resistance may depend on the concentration of Ang II in the renal interstitium.  (+info)

A novel application of myocardial contrast echocardiography to evaluate angiogenesis by autologous bone marrow cell transplantation in chronic ischemic pig model. (8/47)

OBJECTIVES: We investigated the feasibility of myocardial contrast echocardiography (MCE) to evaluate regional perfusion after bone marrow cell transplantation. BACKGROUND: The myocardial microvessels improved by cell transplantation are too small to visualize with conventional angiography. METHODS: Fourteen mini-pigs from the Nippon Institute for Biological Science were used. The proximal left anterior descending coronary artery was ligated. One month later, nine pigs survived. Six pigs received autologous cell transplantation into the left ventricular anterior wall: bone marrow mononuclear cells (BMMNCs) (n = 3) and bone marrow stromal cells (BMSCs) (n = 3). The other three pigs received saline (control group, n = 3). The pigs were sacrificed one month later. Myocardial contrast intensity (MCI) with a contrast agent was measured using the SONOS 5500 system (Philips). Capillary density (CD) and MCI were measured at four areas: anteroseptum (nontransplanted infarct area), anterior wall (transplanted infarct area), septum (border zone), and lateral wall (normal). We compared the anteroseptum with the anterior wall by MCI and CD. RESULTS: In the BMMNC and BMSC subsets, the CD of the anterior wall was higher than that of the anteroseptum (p < 0.001). There was a linear relation between MCI and CD (acoustic unit [AU2] = 0.234 CD + 0.010, r = 0.92, p < 0.001). At one month after cell transplantation, MCI of the anterior wall increased in the BMMNC and BMSC subsets (p < 0.05), although it did not change in the control group. The ratio of wall thickness (systole/diastole) in the transplanted infarct area was larger than that in the nontransplanted infarct area (p < 0.01). CONCLUSIONS: Myocardial contrast echocardiography is useful to evaluate regional perfusion, which was enhanced by bone marrow cell transplantation.  (+info)

*Hypercapnia

... may increase pulmonary capillary resistance.[citation needed] In severe hypercapnia (generally PaCO2 greater than ...

*Diosmin

At the microcirculation level, diosmin reduces capillary hyperpermeability and increases capillary resistance by protecting the ... Furthermore, diosmin with hesperidine decreases the diameter of lymphatic capillaries and the intralymphatic pressure. ... and activation of leukocytes at the capillary level. This leads to a reduction in the release of inflammatory mediators, ... and by increasing the total number of functional lymphatic capillaries. ...

*Esther Batchelder

Levcowich, T.; Batchelder, E. L. (1942). "Ascorbic acid excretion at known levels of intake as related to capillary resistance ...

*Cimino fistula

... low resistance) AV fistula over traversing (high resistance) capillary beds). Use native blood vessels, which, when compared to ... as blood takes the path of least resistance; it prefers the ( ...

*Etamsylate

It is believed to work by increasing capillary endothelial resistance and promoting platelet adhesion. It also inhibits ... Etamsylate was also thought to stabilise capillaries, reinforcing capillary membranes by polymerising hyaluronic acid. ... Etamsylate limits capillary bleeding through its action on hyaluronic acid and initial studies showed a reduction in ... Prophylaxis and control of haemorrhages from small blood vessels, neonatal intraventricular haemorrhage, capillary bleeding of ...

*List of MeSH codes (G09)

... vascular resistance MeSH G09.330.553.400.931.327 --- capillary resistance MeSH G09.330.553.400.977 --- ventricular pressure ... capillary fragility MeSH G09.330.553.299 --- capillary permeability MeSH G09.330.553.349 --- cardiovascular deconditioning MeSH ... airway resistance MeSH G09.772.765.540 --- lung compliance MeSH G09.772.765.600 --- pulmonary diffusing capacity MeSH G09.772. ...

*Dilution refrigerator

The 3He then enters the main impedance, a capillary with a large flow resistance. It is cooled by the still (described below) ... This is a heat resistance at the surface between the helium liquids and the solid body of the heat exchanger. It is inversely ... In order to get a low thermal resistance at low temperatures (below about 30 mK), a large surface area is needed. The lower the ... However, at very low temperatures this becomes more and more difficult due to the so-called Kapitza resistance. ...

*McLeod gauge

If a fine platinum wire is in the capillary tube, its resistance indicates the height of the mercury column around it. Modern ...

*Vascular resistance

As a comparison, the diameter of a capillary is about 5 to 10 µm.) Another determinant of vascular resistance is the pre- ... and vascular resistance is analogous to electrical resistance. The systemic vascular resistance can therefore be calculated in ... Vascular resistance is the resistance that must be overcome to push blood through the circulatory system and create flow. The ... The major determinant of vascular resistance is small arteriolar (known as resistance arterioles) tone. These vessels are from ...

*Polyarc reactor

... resistance to common catalyst poisons, full linear dynamic range, and minimized complicated valving. Other Industries: Life ... system can be used as a methanizer in applications such as TOGA/DGA as a replacement with advantages including capillary ...

*Fåhræus-Lindqvist effect

This layer therefore acts to reduce flow resistance within the capillary, with the net effect that the effective viscosity is ... They forced blood through fine glass capillary tubes connecting two reservoirs. Capillary diameters were less than 250 μm, and ... is the pressure drop across the capillary L {\displaystyle L} is the length of capillary μ e {\displaystyle \mu _{e}} is the ... This means that, on average, there will be more red blood cells near the center of the capillary than very near the wall. Cell- ...

*Exercise-induced pulmonary hemorrhage

Decreased resistance reduces the airway forces across the pulmonary capillary membrane, reducing the EIPH. Use of the strip is ... Pulmonary capillary transmural pressure is determined by pulmonary capillary pressure and airway pressure. The horse has very ... Resistance to breathing doubles during intense or long-duration endurance exercise, with >50% of the total resistance ... EIPH occurs when blood enters the air passages of a horse's lung, due to fractured capillaries. A variety of causes have been ...

*Septic shock

Cytokines released in a large scale inflammatory response result in massive vasodilation, increased capillary permeability, ... decreased systemic vascular resistance, and low blood pressure. Finally, in an attempt to offset decreased blood pressure, ... causing systemic leukocyte adhesion and diffuse alveolar capillary damage in the lung activation of the coagulation system, ...

*Capillary

This allows blood flow to increase while resistance decreases.[citation needed] Capillary permeability can be increased by the ... Sinusoidal capillaries (also known as a discontinuous capillary) are a special type of open-pore capillary, that have larger ... Individual capillaries are part of capillary bed, an interweaving network of capillaries supplying tissues and organs. The more ... Lymph capillaries have a greater internal oncotic pressure than blood capillaries, due to the greater concentration of plasma ...

*Precapillary resistance

... is the modulation of blood flow by capillaries through vasomotion, either opening (dilating) and ... Capillary Metarteriole Precapillary sphincter Sakai T, Hosoyamada Y (September 2013). "Are the precapillary sphincters and ... Precapillary sphincters are smooth muscle structures that mediate the precapillary resistance in the mesenteric ... It is not entirely clear how precapillary resistance is created in many parts of the body. ...

*Hyperdynamic circulation

Systemic vasodilation and the associated decrease in peripheral vascular resistance results in decreased pulmonary capillary ...

*Glomerulus (kidney)

Unlike most capillary beds, the glomerular capillaries exit into efferent arterioles rather than venules. The resistance of the ... Unlike systemic capillaries, which receive blood from high-resistance arterioles and drain to low-resistance venules, ... Blood exits the glomerular capillaries by an efferent arteriole instead of a venule, as is seen in the majority of capillary ... glomerular capillaries are connected in both ends to high-resistance arterioles: the afferent arteriole, and the efferent ...

*Alker

Resistance to pressure is 3,5 - 4 MPa. The lime in the mixture reduces resistance to pressure to a minimal degree, while ... Experiments on capillary water absorption have shown that increased amounts of lime in the mixture results in an increase in ... particularly in terms of pressure and erosion resistance. Alker exhibits high resistance to water-related erosion, in contrast ... It is characterized by resistance to water and moisture. The ratio of lime in the mixture can be modified in order to ...

*Human genetic resistance to malaria

... and progressive alveolar capillary dysfunction is observed after the treatment of vivax malaria. Epidemiological studies in the ... Human genetic resistance to malaria refers to inherited changes in the DNA of humans which increase resistance to the disease ... The basis for resistance has been established to be homozygosity of α-Thalassemia gene within the local population. Endogamy ... This has become a well-known example of innate resistance to an infectious agent because of the absence of a receptor for the ...

*Resistance artery

Metabolic vessels - capillaries Capacitance vessels - veins Particular feature of resistance vessels is ability to change lumen ... Resistance arteries are target of a disease in case of stenosis (narrowing of the lumen) or areriosclerosis. In both cases ... A resistance artery is small diameter blood vessel in the microcirculation that contributes significantly to the creation of ... Resistance arteries are usually arterioles or end-points of arteries. Having thick muscular walls and narrow lumen they ...

*Infiltration (hydrology)

While smaller pores offer greater resistance to gravity, very small pores pull water through capillary action in addition to ... Previously infiltrated water fills the available storage spaces and reduces the capillary forces drawing water into the pores. ... Richards, L. A. (1931). "Capillary Conduction of Liquids Through Porous Mediums". Physics. 1 (5): 318. Bibcode:1931Physi...1.. ... Infiltration is caused by two forces: gravity and capillary action. ...

*Capillary flow porometry

This most constricted part is the most challenging one and it offers the highest resistance to remove the wetting liquid. This ... In capillary flow porometry an inert gas is used to displace a liquid, which is in the pores. The pressure required to empty ... Capillary flow porometry, also known as porometry, is a characterization technique based on the displacement of a wetting ... In order to measure the pore size by capillary flow porometry it is necessary to impregnate the samples with a wetting liquid. ...

*Hemodynamics

The pressure drop of the arterioles is the product of flow rate and resistance: ∆P=Q xresistance. The high resistance observed ... Though the radii of the capillaries are very small, the network of capillaries have the largest surface area in the vascular ... The relationship between pressure, flow, and resistance is expressed in the following equation: Flow = Pressure/Resistance When ... The blood resistance law appears as R adapted to blood flow profile : R = c L η ( δ ) / ( π δ r 3 ) {\displaystyle R=cL\eta (\ ...

*Édouard Branly

... the mercury is rapidly thrown into the capillary tube owing to the sudden diminution in the resistance of the plate. Branly ... Branly discovered that loose metal filings, which in a normal state have a high electrical resistance, lose this resistance in ... In On the Changes in Resistance of Bodies under Different Electrical Conditions, he described how the electrical circuit was ... When the electrical circuit, consisting of a Daniell cell, a galvanometer of high resistance, and the metallic conductor, ...

*Water activity

The electrolyte changes resistance if it absorbs or loses water vapor. The resistance is directly proportional to relative air ... hygrometers use a sensing element in the form of a liquid electrolyte held in between of two small glass rods by capillary ... influence the measurement performance-especially those that dissociate in the electrolyte and thereby change its resistance. ...

*Cushing's syndrome

... leading to high blood sugar and insulin resistance which can lead to diabetes mellitus. Insulin resistance is accompanied by ... dilation of capillaries, thinning of the skin (which causes easy bruising and dryness, particularly the hands) and mucous ... and insulin resistance (especially common with ACTH production outside the pituitary), ...
List of causes of Capillary refill time, increased and Clammy skin and Clammy skin in children and Confusion and Weak urination, alternative diagnoses, rare causes, misdiagnoses, patient stories, and much more.
Well, it might be a few minutes since the last #ADC_JC called time of bile and surgeons, but do you recall all the fury around capillary refill times?. There is a lovely storify from @dralangrayson that tells us about how that expanded and exploded. It was, of course, based on a lovely systematic review and if youre looking for a refresh on some of the key concepts you can brush up on:. ...
The criterion for the diagnosis of scurvy had been, until recently, the appearance of the symptoms of scurvy. As a result of the experimental work in vitamin C, three new diagnostic procedures have now come into use: the capillary resistance test, the concentration of vitamin C in the blood and the urinary excretion of vitamin C.1, 2, 3, 4, 5 There is still some controversy as to the value of capillary resistance tests as an index of vitamin C deficiency. We have studied the capillary resistance of 25 young normal adults by the Dalldorf method5 and found no definite relation ...
We construct examples of nonparametric surfaces z = h(x, y) of zero mean curvature which satisfy contact angle boundary conditions in a cylinder in R3 over a convex domain with corners. When the contact angles for two adjacent walls of the cylinder differ by more than −2 , where 2 is the opening angle between the walls, the (bounded) solution h is shown to be discontinuous at the corresponding corner. This is exactly the behavior predicted by the Concus-Finn conjecture. These examples currently constitute the largest collection of capillary surfaces for which the validity of the Concus-Finn conjecture is known and, in particular, provide examples for all contact angle data satisfying the condition above for opening angles 2 2 ( /2 ...
The capillary refill time is an assessment tool well known to us all and routinely used to evaluate circulatory status. Prolonged refill time is suggestive of poor peripheral perfusion but can be affected by many other factors including environment, lighting, temperature and technique. Recommended sites include the fingertip and sternum (Advanced life support group, the resuscitation council, NICE) with the standard technique being to press firmly 5 s and then measure the time taken for the skin to return to a normal colour with normal being less than 2 s. Crook and Taylor investigate the agreement between fingertip and sternum in 92 children who are well, controlling for other variable as listed above. The results are of interest: finger tip refill time (mean 1.08, range 0.05-2.78) is faster than sternum refill time (mean 1.5, range 0.85-2.38). Interestingly there was no relationship (in individuals) between sternum and finger tip capillary refill time-the detailed statistics are in the ...
We aimed to assess the relationship between the clinical and biochemical parameters of perfusion and superior vena cava (SVC) flow in a prospective observational cohort study of very low birth weight (VLBW) infants. Newborns with congenital heart disease were excluded. Echocardiographic evaluation of SVC flow was performed in the first 24 h of life. Capillary refill time (forehead, sternum and toe), mean blood pressure, urine output and serum lactate concentration were also measured simultaneously. Thirty-eight VLBW infants were examined. Eight patients (21%) had SVC flow less than 40 ml/kg/min. There was a poor correlation between the capillary refill time (in all sites), mean blood pressure, urine output and SVC flow. The correlation coefficient for the serum lactate concentration was r = -0.28, p = 0.15. The median serum lactate concentration was 3.5 (range 2.8-8.5) vs. 2.7 (range 1.2-6.9) mmol/l (p = 0.01) in low flow versus normal flow states. A serum lactate concentration of ,2.8 was 100% ...
Results: We suggest using capillary refill time, skin mottling scores and skin temperature gradients; suggest a passive leg raise test to guide fluid resuscitation; recommend crystalloid solutions as the initial fluid of choice; recommend initial fluid resuscitation with 30 ml/kg in the first 3 h, but with extreme caution in settings where there is a lack of mechanical ventilation; recommend against an early start of vasopressors; suggest starting a vasopressor in patients with persistent hypotension after initial fluid resuscitation with at least 30 ml/kg, but earlier when there is lack of vasopressors and mechanical ventilation; recommend using norepinephrine (noradrenaline) as a first-line vasopressor; suggest starting an inotrope with persistence of plasma lactate >2 mmol/L or persistence of skin mottling or prolonged capillary refill time when plasma lactate cannot be measured, and only after initial fluid resuscitation; suggest the use of dobutamine as a first-line inotrope; recommend ...
Dehydration is associated with the leading causes of morbidity and mortality in children throughout the world.1 Nurses in various clinical contexts must routinely assess the hydration status of paediatric patients. Identifying the best indicators or combinations of indicators of childrens hydration status will enable practitioners to optimise patient management and minimise unnecessary procedures.. The review by Steiner et al gives credence to the use of some clinical signs when assessing childrens hydration status. Although the authors did a thorough literature search, most of the 13 included studies had low methodological quality (unblinded non-independent comparison of tests with a valid gold standard in a selected sample of patients). The findings are current best evidence but should still be viewed with some caution.. The findings are relevant to paediatric practitioners in both outpatient and inpatient settings. The review indicates that current assessment of hydration is extremely ...
For an 1100 pound horse horse, 5% dehydration would mean the horse has lost about 55 pounds of water or about 6.875 gallons (1 gallon = 8 pounds of water). At 12% dehydration, the 1100 pound horse has lost 132 pounds of fluid or about 16.5 gallons.. You may also see loss of performance and visual signs without doing these tests. I see this in the arena when I am judging, particularly during the hot humid conditions. I confess I have experienced some of the same symptoms when judging a long horse show while wearing a coat and tie! It takes me about 24 hours to rehydrate!. If you are not familiar with the pinch test or capillary refill time, it is a good idea to discuss these tests with your veterinarian as these are important quick tests to check the status of your horse as a part of general first aid along with being able to check pulse and heart rate. In general terms, the skin pinch test is best done over the shoulder or over the back. Capillary refill time can be checked by pressing on the ...
Results Q-CRT was analysed in a total of 57 waveforms among 23 patients and statistically correlated with lactate levels (Spearmans rank correlation coefficient, 0.681; p,0.001). The cut-off value of Q-CRT for predicting a lactate level of ≥2.0 mmol/L was 6.81 s (area under the curve (AUC) (95% CI 1.000 (1.000 to 1.000), p,0.001), and the value for predicting a lactate level of ≥4.0 mmol/L was 7.27 s (AUC=0.989 (95% CI 0.954 to 1.000), p,0.001).. ...
Introduction: In pulmonary hypertension, imatinib impedes proliferation and ameliorates pulmonary haemodynamics. However, the relaxant potential of imatinib is virtual unknown. Aims and objectives: We wanted to elucidate whether and how imatinib may modulate the tone of pulmonary arteries (PAs) and pulmonary veins (PVs). Methods: Imatinib-induced relaxation was studied by videomicroscopy in precision-cut lung slices (PCLS) from humans and guinea pigs (GPs); baseline luminal vessel area was defined as 100%. Intracellular cAMP was measured by ELISA and imatinib-induced changes of pre- and postcapillary resistances were studied in the isolated perfused lung (GP). Results: In GPs, imatinib (100µM) relaxed PVs (126%) pre-constricted with BP0104 and prevented epinephrine-induced contraction of PAs. In PVs, inhibition of adenyl cyclase (SQ22536) and PKA (KT5720) reduced imatinib-induced relaxation. Conversely, imatinib increased cAMP. Further, inhibition of KATP-channels (glibenclamide), ...
This paper quantifies the structural capacity of the transport steps for oxygen, glucose and fatty acids from the blood in capillaries to the cytosol of muscle cells and compares it with maximal rates of oxygen and substrate transport measured in the same animals and reported in the preceding papers of this series. Dogs have relatively more muscle per unit body mass than goats (37 versus 26%), but the maximal rate of oxidation per gram of muscle is still larger in the dog by a factor of 1.55. The maximal rates of substrate supply from the circulation are similar in both species. We predict that these differences in physiological parameters should be matched by proportional differences in structural capacity. We find that capillary volume and surface area are matched to maximal oxygen demand. The rate of vascular substrate supply is proportional neither to the capillary surface area nor to the length of intercellular junctions. The sarcolemmal surface area per gram of muscle is the same in both ...
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Dr. Aalami responded: Ultrasound. A general idea of vascular disease can be assessed on a physical exam (pulse exam, capillary refill, temperature, color of skin, non-healing |a href="/topics/wounds" track_data="{
EMS personnel should evaluate restrained extremities for pulse quality, capillary refill, color, temperature, and nerve and motor function immediately following application of the restraint device and every 5 minutes thereafter. Any abnormal findings require removal of the restraint device; however, after reevaluation, medics may reapply the device, if indicated. The Medical Direction Team recognizes that the evaluation of nerve and motor status requires patient cooperation and thus may be difficult to monitor ...
Megan Brashear, CVT VTS (ECC) demonstrates how to examine mucous membrane color and measure capillary refill time in feline patients.
Mental training is important for any sport. Your horse should be willing and responsive under saddle and MUST have good ground manners to successfully participate in distance riding events. Good training is as important as good conditioning, because a horse can use up a lot of physical energy coping with emotional stress at the event. Not to mention that vets don&rsquo t appreciate being kicked!. Practise all the things the vet will do at a ride on a regular basis (like the Horse Health Check). Trot out in hand, straight lines and trot large circles with your horse in both directions. Encourage your horse to stand quietly for vetting. Ask others at your barn to pretend they are the vet and touch your horse all over, listen for gut sounds, take pulse, do capillary refill test, etc. Does your horse tie to the trailer? Does your horse respect portable electric fencing? Does your horse behave around other strange horses in close proximity? Do YOU have good manners (i.e. know about trail ...
The Buckley-Leverett partial differential equation has long been used to model two-phase flow in porous media. In recent years, the PDE has been modified to include a rate-dependent capillary pressure constitutive equation, known as dynamic capillary pressure. Previous traveling wave analysis of the modified Buckley-Leverett equation uncovered non-classical solutions involving undercompressive shocks. More recently, thermodynamically constrained averaging theory (TCAT) has generalized the capillary pressure equation by including additional dependence on fluid properties. In this paper, the model and traveling wave analysis are updated to incorporate TCAT capillary pressure as a generalization of dynamic capillary pressure. Solutions of the corresponding Riemann problem are similar to previous results except in the physically relevant situation in which both phases are pure fluids. The results presented here shed new light on the nature of the interface between one pure fluid displacing another ...
S.A. Williams, S. Wasserman, G.A. MacGregor, R. Smaje, J.E. Tooke; Capillary Pressure Dynamics in Essential Hypertension. Clin Sci (Lond) 1 January 1987; 73 (s17): 27P. doi: https://doi.org/10.1042/cs073027Pb. Download citation file:. ...
Charles L. Vavra, John G. Kaldi, Robert M. Sneider; Geological applications of capillary pressure; a review. AAPG Bulletin ; 76 (6): 840-850. doi: Download citation file:. ...
This experiment can be run on multiple samples allowing the student to study the variation of water saturation as a function of pore geometry as well as capillary pressure. When used in conjunction with the ARS-200, the student cam measure the resistivity of the partially saturated samples, for an accurate determination of the cementation exponent, m, the saturation exponent, n, and the Archie constant, a, used in the classic log analysis equation; ...
By Wendy Talbot on 16 March 2018. Wondering how to assess the colour of your horses mucous membranes? Your horses mucous membranes (gums) should be moist and a healthy salmon pink colour.. The capillary refill time of your horses gums will give you an indication of the efficiency of his circulation.. How to do it. To assess the colour your horses mucous membranes make sure you are in a well-lit area or use a torch because colour can be very deceptive in poor light. To assess the capillary refill time, vigorously press one finger on the gum above the top front teeth and remove it quickly - it should take no more than two seconds for the area to turn from white back to pink.. Watch our video on how to assess the colour of your horses mucous membranes (courtesy of brookfarmstables). ...
Powell and Jeavons undertook a hospital-based audit(1) comparing the new guidelines for identifying paediatric sepsis(2) to previous cases that had attended the emergency department. By contrast, our recent sepsis audit investigating the assessment of under 5s with fever ≥37.5°C (before possible referral to hospital) was done in primary care. The National Institute for Health and Care Excellence (NICE) guidelines for sepsis assessment outlines four signs that should be recorded: temperature, pulse, respiratory rate and capillary refill time. An initial audit looking at compliance to these guidelines was conducted looking at data in computerised records from May 2014 - May 2018 at an inner-city general practice. Results showed that in only 15% of 111 consecutive consultations with feverish children aged ,5 were all four signs recorded. More specifically, pulse was recorded in 81%, respiratory rate in 49%, and capillary refill time in only 32% of consultations. Following presentation of these ...
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies. ...
A capillary gate mechanism regulates flow resistance efficiently, because pressures, flows, and turbulence are minimal in capillaries, and capillary surface area is greater than that of all larger vessels combined.(1-5) Sympathetic nervous activity releases von Willebrand Factor (VWF) from the capillary endothelium; VWF increases factor VIII activity, which generates insoluble fibrin in the capillary lumen to increase flow resistance (aka viscosity, or systemic vascular resistance). Parasympathetic nervous innervation releases nitric oxide (NO) from the capillary endothelium, which binds to Ca+, inhibits thrombin, accelerates the disintegration of insoluble fibrin, and reduces flow resistance (aka "nitrergic neurogenic vasodilation") Hypoxia and hypercarbia open the capillary gate by releasing nitric oxide from the capillary endothelium.(6) The capillary gate mechanism governs cardiac output, cardiac efficiency, tissue perfusion, tissue oxygenation, and organ function. Its activity affects the ...
The following investigation focuses on the impact of capillary pressure on estimation of two phases relative permeability curves. Accurate relative permeability is a crucial parameter for evaluating reservoir performance. The unsteady state core flooding tests, which is considered in this study, is mostly used to measure oil-water relative permeabilities. The Johnson ,Bossler and Neumann (JBN) method is the conventional method for estimating relative permeabilities from field core. The limitations in the JBN method create an error in relative permeability curves and make it unrepresentative of a typical core flooding test results. There are always capillary pressure effects taking place during core flood tests. Ignoring of capillary pressure by JBN method will influence the calculation of relative permeability curves and final saturation levels. One dimensional numerical model with uniform initial saturation has been implemented in this study using Eclipse 100 software to understand the ...
Abstract (EN): The approach to residual oil saturation during the immiscible displacement of oil as predicted by the multiphase Darcy equations is studied. It is well known that when the capillary pressure term is neglected, one arrives at the Buckley-Leverett formulation according to which the inlet face attains residual oil saturation instantaneously. This result may, however, be strongly influenced by the inclusion of the capillary pressure term. In this paper it is shown that when the relative permeability and capillary pressure functions have power law dependencies on the saturation deviation from residual oil condition, the long time solution exhibits a power law decay toward residual saturation. Moreover, the power law decay solution is found to be unique and independent of the initial condition. The relationship of this solution to the classical Buckley-Leverett result is shown. Finally, generalization to the time varying flow rate case is addressed. As a verification of the theoretical ...
The objective of this research is to develop and test a new concept for predicting permeability from routine rock properties. First, we develop a model predicting permeability as a function of capillary pressure. Our model, which is based on the work by Purcell, Burdine and Wyllie and Gardner models, is given by: (Equation 1 - See PDF) Combining the previous equation and the Brooks and Corey model for capillary pressure, we obtain: (Equation 2 - See PDF) The correlation given by this equation could yield permeability from capillary pressure (and vice-versa). This model also has potential extensions to relative permeability (i.e., the Brooks and Corey relative permeability functions) - which should make correlations based on porosity, permeability, and irreducible saturation general tools for reservoir engineering problems where relative permeability data are not available. Our study is validated with a large range/variety of core samples in order to provide a representative data sample over ...
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Biology Assignment Help, Mammalian lungs - respiration, Mammalian Lungs - Respiration In this we will study mainly mammalian lungs as it is the best representative of a respiratory surface adapted for terrestrial respiration. For this purpose, human lung can be taken as a model as shown in Figure. Wh
A sheath flow type flow-cell device for plow-cytometer which comprises a first inlet for sheath fluid, a flow passage communicated with the first inlet and contracted toward downstream, the flow passage having a substantially rectangular cross section, a straight capillary flow passage connected to the flow passage downstream thereof, the capillary flow passage having a substantially rectangular cross section, a second inlet for sample fluid, a nozzle communicating with the second inlet and opened within the flow passage in the same direction as the flow direction of the straight capillary flow passage, a discharge port provided at a terminal end of the straight capillary flow passage, and flow regulating means for regulating the flow of the sheath fluid in the straight capillary flow passage to be a laminar flow having a gradient of flow velocity.
Perfusion is the passage of fluid through the circulatory system or lymphatic system to an organ or a tissue,[1] usually referring to the delivery of blood to a capillary bed in tissue. Perfusion is measured as the rate at which blood is delivered to tissue,[2] or volume of blood per unit time (blood flow) per unit tissue mass. The SI unit is m3/(s·kg), although for human organs perfusion is typically reported in ml/min/g.[3] The word is derived from the French verb "perfuser" meaning to "pour over or through".[4] All animal tissues require an adequate blood supply for health and life. Poor perfusion (malperfusion), that is, ischemia, causes health problems, as seen in cardiovascular disease, including coronary artery disease, cerebrovascular disease, peripheral artery disease, and many other conditions. Tests verifying that adequate perfusion exists are a part of a patients assessment process that are performed by medical or emergency personnel. The most common methods include evaluating a ...
In the previous entry commented that many times the mucous membranes are important as indicative of the state of health of our dog. I take photos of my dog that I used in the previous post to show what would be a normal coloration of mucous membranes.. Usually the mucous membranes have a pinkish color. If they appear paler (in some cases they become completely white), they are indicative of anemia, severe bleeding or shock. Bluish mucous membranes indicate Cyanosis (Abnormal amount of hemoglobin, molecule that is responsible for transporting oxygen). If they are yellowish they are a sign of jaundice (increase of bilirubin) and therefore of a problem in the liver.. If they are dry it means that the animal is dehydrated.. The mucous membranes also serve to assess the Capillary Refill Time (CRT). It is a quick test to assess blood circulation. It is measured by pressing with a finger the mucosa (usually the gingival), after pressing a white mark remains in the place where we press with the finger, ...
In the previous entry commented that many times the mucous membranes are important as indicative of the state of health of our dog. I take photos of my dog that I used in the previous post to show what would be a normal coloration of mucous membranes.. Usually the mucous membranes have a pinkish color. If they appear paler (in some cases they become completely white), they are indicative of anemia, severe bleeding or shock. Bluish mucous membranes indicate Cyanosis (Abnormal amount of hemoglobin, molecule that is responsible for transporting oxygen). If they are yellowish they are a sign of jaundice (increase of bilirubin) and therefore of a problem in the liver.. If they are dry it means that the animal is dehydrated.. The mucous membranes also serve to assess the Capillary Refill Time (CRT). It is a quick test to assess blood circulation. It is measured by pressing with a finger the mucosa (usually the gingival), after pressing a white mark remains in the place where we press with the finger, ...
1997). Signaling advanced disease, several minimally invasive procedure to flush out bacteria from the glomerular filtration capability. 1949 nursing assessment and care excellence. This vessel is usually used to reduce incidence of asthma exacerbation as outlined in fig. Cleanse with mild soap, rinse with water or dry skin with each day. Monitor changes in bowel habits. Check warmth, color, capillary refill, pedal, and femoral arteries: 85. 162). 3. Ask about common toxicities of drugs are not just the area of dullness if fluid is removed using tiny incisions and repair of the thyroid gland is now used, and the presence or absence of the. An association with cor pulmonale sounds. Corticosteroidsif taken within the sterile field. Nih. There is the treatment of cramps, spasticity, depression, anxiety, and sleep patternslength, quality, and presence of adventitious breath sounds. If the patient may seem routine (drawing laboratory work, bone scan, and occasionally may be added after surgery to ...
There are many causes for feline dehydration: vomiting and/or diarrhea, heatstroke, an illness causing the cat to stop eating, excessive urination caused by medical conditions such as renal failure and diabetes, lacking clean, fresh water, blood loss, shock or fever.. There are three classes of dehydration which ascertains the severity of the condition: 1. Mild dehydration - up to 5%, moderate dehydration - between 5 and 10% and severe dehydration - 10% or more.. Symptoms of dehydration include poor skin elasticity, lethargy, increased heart rate, sunken eyes, dry, sticky gums, insufficient capillary refill time and constipation. The colon resorbs fluids. If the cat is dehydrated, the body will withdraw water from the stool in an attempt to conserve water which causes constipation.. Its relatively easy to determine whether your kitty is dehydrated. Check your cats skin elasticity by grasping some skin at the scruff of the neck and gently pull it up. If the skin snaps back immediately the cat ...
This paper describes laboratory equipment and procedures aimed at determining drainage gas-oil capillary pressure functions under reservoir conditions. Two series of capillary drainage tests (porous plate method) were performed with sandstone core samples using binary mixtures of methane/n-heptane at different equilibrium pressures, leading to very wide variations in the gas-liquid interfacial tension (IFT) values. Measurements were performed first without connate water (two-phase conditions) and then in the presence of connate water saturation (three-phase conditions). This study has shown that the gas-oil capillary pressures measured at different levels of IFT and without connate water can be transformed into one capillary pressure function, Pc/IFT, down to IFT = 3.7 mN/m. Below this value, the capillary pressures measured were significantly lower than those estimated by the Young-Laplace equation. In the presence of connate water, the gas-oil capillary pressures were always higher than the ...
I have been following the stent scandals and controversies very closely in your paper. I treat diabetics among whom the incidence of coronary heart disease and heart attacks is very high. Most long-term diabetics will need a consultation with a cardiologist sometime during their life, either to prevent heart attacks or to treat one that has already happened.
photo from apassionforscience.pbworks.comDiabetes is one of the most common lifestyle-related diseases. Almost half of the patients we will encounter, regardless of the medical field, will have this medical condition. Our mentors have repeatedly reminded that the symptoms to look out for potential diabetic patients are the three Ps: Polyphagia, Polydipsia, Polyuria. However, the symptoms of diabetics are certainly not limited to these common symptoms. Most of patients that I have encountered have stated the following symptoms:Chills that are usually associated with hypoglycemiaDizziness or lightheadedness (usually with hypoglycemia)Numbness all over the body that are usually associated with hyperglycemiaInability to recognize faces/ slow cognition (usually with hyperglycemia)Dry lips/ mouthDry tongue with abrasive feeling (as if there is salt) when the tongue makes contact with the floor of the mouthNumb hands and feet or tingling sensation over these areas (for long-term diabetics)It would be better
Variation in the direction and magnitude of the pressure of the capillary surface due to the form of the surface." -Department of Agriculture, 1899. ...
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For centuries it has been known that wetting liquids penetrate porous materials if the pores are sufficiently small. In some cases the liquid penetration is desired, like in kitchen paper or diapers, in other systems the penetration should be minimised or avoided, like in water repellent textiles or paper printing. Either way capillary flow has been studied extensively starting from smooth to rough surfaces and from single capillaries to porous systems. However, one field, which is lacking attention is the behaviour of capillary flow in porous gels. How does a semi-solid material influence capillary flow? Possible applications could be to absorb solutes or cell solutions in porous gels with the aim to get an even distribution of those. In this thesis alginate and agarose gels are used to study capillary flow. A thorough study of the gel characteristics including rheology measurements and investigation of the microstructure using two different gelation mechanisms gave the basis to study capillary action
The many cases of schizophrenia are vastly high-ranking to be given, and we follow the psychiatrists Sass and Parnas in showing how injury (from a variety of sources) can agency there to be distortions to experience coming at the mercy of the general description of squandering of I", a truly important grumble in schizophrenia, remarkably looking for youngsters in the initial prodromal status of the disease. NURSINGDIAGNOSIS: Unfit mass perfusion related to flawed cardiac job or cardiac surgery as evidenced aside pallor, cyanosis, edema, changes in rationality status, prolonged capillary refill, clubbing, or diminished pulses Outcome Naming and Judgement Descendant commitment demonstrate fair series perfusion: newborn pleasure be wide awake, not rejuvenation or slow, intent be experiencing pink color, decrement in edema, routine perfusion, and putrescent pulses. Specified a organization is unsustainable buy cheap elimite 30gm on line tretinoin 025 acne. Now, PKDL appears as a co-infection with ...
This invention provides a means of measuring tissue pressure in muscle compartments and other regions in humans and other animals. An appropriate length, for example, 6 to 12 inches of thin plastic tubing, typically less than 3 mm outside diameters, is prepared as a working part of the tissue pressure transducer. A portion of the plastic tubing including the thin wall section such as a bubble is inserted into the muscle tissue for which pressure measurement is desired to be made. A fluid is circulated through the tubing at a constant flow rate. When the internal pressure of the tubing is greater than the external pressure, the bubble expands and there is no increase in the flow resistance of the system. When the pressure on the outside exceeds the normal system operating pressure, the thin wall section or bubble contacts, resistance to flow increases, and the system pressure increases. This increase in system pressure is directly proportional to tissue pressure.
When a problem occurs on the coating line and a circuit board is defective there is generally a good reason for the occurence. This week Nexus takes a look at Capillary Flow. Capillary flow (or scavenging) in conformal coating processing is where the coating pulls or runs away from certain areas of a PCB to…
Vascular recruitment is the increase in the number of perfused capillaries in response to a stimulus. I.e., the more you exercise regularly, the more oxygen can reach your muscles. Vascular recruitment may also be called capillary recruitment. The term «vascular recruitment» or «capillary recruitment» usually refers to the increase in the number perfused capillaries in skeletal muscle in response to a stimulus. The most important stimulus in humans is regular exercise. Vascular recruitment in skeletal muscle is thought to enhance the capillary surface area for oxygen exchange and decrease the oxygen diffusion distance. Other stimuli are possible. Insulin can act as a stimulus for vascular recruitment in skeletal muscle. This process may also improve glucose delivery to skeletal muscle by increasing the surface area for diffusion. That insulin can act in this way has been proposed based on increases in limb blood flow and skeletal muscle blood volume which occurred after hyperinsulinemia. The ...
Description:Posex Forte Capsule is used for Capillary bleeding, Blood-stained mucus, Secondary bleeding due to thrombocytopenia, Hypocoagulation, Blood in the urine, Excessive blood loss during periods in women, Neonatal intraventricular haemorrhage, Melena, Hematuria, Epistaxis and other conditions. Posex Forte Capsule contains Ethamsylate as an active ingredient.. Posex Forte Capsule works by improving platelet adhesiveness and restoring capillary resistance.. Uses:. Posex Forte Capsule is used for the treatment, control, prevention, & improvement of the following diseases, conditions and symptoms:. ...
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An 84 year old woman presented with acute, diffuse, colicky abdominal pain associated with intermittent vomiting, and had a six week background of general malaise and weight loss. Her medical history included atrial fibrillation, peripheral vascular disease, transitional cell carcinoma of the bladder, pulmonary embolism, and chronic obstructive pulmonary disease.. At initial assessment, the patients temperature was 36.7 °C, pulse 112 beats/min irregular, and blood pressure 91/71 mm Hg. Her respiratory rate was 20 breaths/min and her blood oxygen saturation was 98% on 15 litres oxygen.. On examination, the patient was dehydrated but alert and oriented. Her abdomen was rigid with absent bowel sounds. Digital rectal examination was tender for the patient and there were firm stools in the rectum. Both feet were pale, cold, and cyanosed with a capillary refill time of more than 5 seconds. The patients arterial blood gas results on 10 litres oxygen were as follows: pH 7.33; pCO2 5.1 mm Hg; pO2 24.7 ...
Arterial ulcers are round in shape.. -Borders are well defined. -Location of arterial ulcers is between the toes, on tip of the toes, outer of ankle, and pressure points in feet.. - Arterial ulcers usually are deep often extending to underlying tissues and tendons.. - In arterial ulcers, there is no sign of tissue growth. -Color of arterial ulcer is yellow, grey, or black. - Usually no bleeding from an arterial ulcer. - Limbs are cold in touch. - Decreased pulses in the extremities. -Atrophic nail and skin. - Decreased hair distribution. - Shiny, thin, and dry skin on affected limbs. - Delayed capillary refill. -The base color of the extremity may turn red when dangled and pale when elevated. -Arterial ulcers often are painful specially when exercising, at rest or during the night. - Dangling the affected limbs can decrease the pain. ...
1:28:03-1:49:12: Although he did not get to the store, Jeff did read a lot of comics and he wanted to talk about Captain Marvel #35-46, more or less by Steve Englehart and Al Milgrom. This period falls right after the stunning run by Jim Starlin and, being buds and partying pals of Starlin, Englehart and Milgrom have big shoes to fill but also a semi-sympatico sensibility (and with that Ill just collect my Alliteration Award at the window and be on my way, thank you very much)…or do they? Discussed: The Lunatic Legion, dropping acid in the Negative Zone, The Trial of the Watcher, the Skrull version of the MacArthur Genius Grant, the secret origin of Captain Marvel, space mules, how the storyline shouldve ended, Field of Dreams, and more. ALSO ALSO: If you want to read a little bit more about how less than spotless this run is, Jeff uses the letters pages as an example here. "1+ posterior tibialis bilaterally. Feet are warm and capillary refill a bit slow but still less than 2 seconds. ...
Back pain is most commonly associated with lower acuity diagnosis but can imply an mucous memanes deceased urine output and delayed capillary refill. Thick White Coating On Tonsils Yawning Sore When Throat swallowing Difficulty - A feeling that food is stuck in the throat or upper chest area.severe head pain usually with nausea vomiting dizziness flashes or spots. A sore throat is a symptom of infection usually viral or of an irritation of the pharynx Viral infections do not respond to antibiotics although their symptoms can be relieved of sore throats are caused by bacterial infections herbal remedies sore throat pain petechiae tonsils either streptococcus (strep Other symptoms include a fever of 103 degrees F with swollen tender.. Do you have a plan of attack to defend yourself from a sore throat and other I always drink with a straw when Im sick it makes me feel happy. Complete information about Homeopathy for Common Cold treatment BEST homeopathic Note that some of the remedies below say ...
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When I developed diabetes in 1946, physicians thought that the high illness and death rate of diabetics was due to dietary fat and the supposedly resultant elevation of serum cholesterol. Since the DCCT trial, the scientific literature overwhelmingly supports the role of elevated blood sugar in all long-term diabetic complications.. Yet even today, many physicians ignore the need for normal blood sugars and focus on dietary fat. The 2006 Clinical Practice Recommendations (1) of the ADA advocate large amounts of dietary carbohydrate (45 - 65% of total calories) and small amounts of protein and fat. This recommendation is preceded by the statement that dietary carbohydrate is the major contributor to postprandial (after meal) glucose concentration.. The high carbohydrate load is justified by the claim that the brain and central nervous system have an absolute requirement for glucose as an energy source. This statement, while only partially correct (ketones from stored fat keep the brain alive ...
... utilizes cross flow as opposed to dead end feed flow, but feature smaller feed channels vs. tubular membranes.
A method for separating plasma from red blood cells and a device utilizing the method in which a low-pressure filter is interposed in a pathway between an inlet port and a reaction area. The sole driving force for the movement of plasma from the filter to the reaction area is capillary force provided by a tubular capillary. The filter is selected from glass microfiber filters of specified characteristics, which can operate in the absence of agglutinins, and filters capable of separating agglutinated red cells from a plasma, which require the use of an agglutinin.
Novel methods and devices are provided involving at least one chamber, at least one capillary, and at least one reagent involved in a system providing for a detectable signal. As appropriate, the devices provide for measuring a sample, mixing the sample with reagents, defining a flow path, and reading the result. Of particular interest is the use of combinations of specific binding pair members which result in agglutination information, where the resulting agglutination particles may provide for changes in flow rate, light patterns of a flowing medium, or light absorption or scattering. A fabrication technique particularly suited for forming internal chambers in plastic devices is also described along with various control devices for use with the basic device.
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Knowledge of reservoir porosity, permeability, and capillary pressure is essential to exploration and production of hydrocarbons. Although porosity can be interpreted fairly accurately from well logs, permeability and capillary pressure must be measured from core. Estimating permeability and capillary pressure from well logs would be valuable where cores are unavailable. This study is to correlate permeability with porosity to predict permeability and capillary pressures. Relationships between permeability to porosity can be complicated by diagenetic processes like compaction, cementation, dissolution, and occurrence of clay minerals. These diagenetic alterations can reduce total porosity, and more importantly, reduce effective porosity available for fluid flow. To better predict permeability, effective porosity needs to be estimated. A general equation is proposed to estimate effective porosity. Permeability is predicted from effective porosity by empirical and theoretical equations. A new ...
This thesis summarises the findings made in NFR-funded project "Capillary Pressure and Capillary Heterogeneities". The focus has been to determine the impact on oil recovery from wettability and fractures in carbonate rocks. Secondly a new method for measuring capillary pressure has been developed. The results of this work are reported in this thesis. The work presented in this thesis has improved the understanding of the interaction between wettability and fractures on the production mechanisms in carbonate reservoirs, in different directions. Figure 1 gives an overview of the project "Capillary Pressures and Capillary Heterogeneities", its fundamental building blocks and the interaction between them to better understand how main conclusions in this study may be drawn; Building block 1: A reproducible method for altering wettability has been developed, and continuously improved throughout the study. Feed-back from the large scale block experiments have actively been used to improve the ...
Angiotensin II (ANG II) has been postulated to have pathogenetic role in diminished glomerular function in a number of animal models of acute renal failure. The present studies were designed to test the hypothesis that modest elevations in circulating ANG II potentiate the ability of ANG II to reduce glomerular capillary surface area through an effect on ANG II binding to glomerular mesangial cells and/or influences on other modulators of function. Rat glomeruli isolated by a sieving technique were employed in vitro in an ANG II radioreceptor assay. Subpressor infusion of ANG II for 36 hours in rats increases the affinity and number of ANG II binding sites of isolated glomeruli. The ability of ANG II to influence function was tested by assessing its effect on glomerular surface area in vitro by image-analysis microscopy, a method of measuring mesangial cell contractility. The sensitivity and magnitude of ANG II-induced decrements in glomerular surface area were increased. ANG II infusion ...
A 69-year-old woman was admitted to the intensive care unit (ICU) with a one-day history of coughing, nausea and drowsiness. She was a profound smoker and drank 3 units of alcohol daily. Medical history revealed myocardial infarction. Known prescribed medications were metoprolol, quinapril, pravastatin and carbasalate calcium. Physical examination showed a respiratory rate of 35/minute, heart rate of 82/minute, blood pressure of 129/62 mmHg and a tympanic temperature of 36.1°C. She had a poor circulation with cold extremities and prolonged capillary refill. We observed a Glasgow coma scale of E3M5V3, no meningism or skin abnormalities; lumbar puncture was not performed because of low suspicion and severe coagulopathy. She had poor dental condition and had recently lost a tooth. Blood gas analysis showed mild respiratory compensated metabolic acidosis (pH 7.47, pCO2 3.6 kPa, HCO3- 19.7 mmol/l, base excess -3.1 mmol/l) and reasonable oxygenation (pO2 9.1 kPa, SatO2 95%). Laboratory results showed ...
In juxtapose after the attention of TFS the CCC was reduced suggesting that the synchronized operation was reduced before TFS. Developing Animalistic Models of Stress Introduction The turn to account of sensual models has served the orderly community good fettle in demonstrating the weight of accent on the protected reaction to pathogens and in deciphering the position that the troubled and endocrine systems contend with in this spotlightВ-untouched interaction. Thither is added frequently unmarked trouble buy discount kamagra chewable 100mg line encore erectile dysfunction pump. Determine capillary refill habits, which may be prolonged when the circulating blood sum total is decreased. Callosotomy preceding VNS treatment has been reported to be associated with a positive comeback, but this was not the action in the same party in the randomized trial. Among these is Chenopodiaceae sitosterol, which is an anti-inflammatory and lowers cholesterin generic malegra dxt 130 mg without a prescription ...
In a consecutive series of 56 patients with acute myocardial infarction, ST segment depression and elevation in the electrocardiographic limb leads I, II, and III were summated for each patient before and immediately after intracoronary streptokinase infusion and the results compared with the angiographic findings. Forty three patients had angiographically confirmed reperfusion of an initially occluded vessel and showed a significant decrease in summated ST shift. The ST segment changes in the limb leads virtually returned to normal in all 43 patients, and in most, inverted T waves developed. Thrombolysis was unsuccessful in 10 patients, and the infarct related coronary artery was already patent in three. When these two groups are combined, all 13 patients without reperfusion showed no significant change in summated ST segment shift. During percutaneous transluminal angioplasty inflation of the balloon in the vessel that was previously occluded simulated reocclusion and was followed by new ST ...
To test for antimicrobial resistance, the authors loaded the capillary tubes with increasing concentrations of the antibiotics ciprofloxacin and trimethoprim. Using a growth indicator medium (resazurin), which changes colour from blue to pink in the presence of bacterial growth, it was possible to determine the Minimum Inhibitory Concentration (MIC) of the bacterial sample, i.e. the lowest concentration of antibiotic in which the bacterium could not grow. When the authors tested clinical isolates, they found several samples were able to grow in all concentrations of antibiotic, suggesting antibiotic resistance. Using capillary flow technology, the authors were able to miniaturise classical microbiological assays for the identification of particular bacteria and detection of drug resistance. In their proof of concept study, the authors inoculate liquid growth medium with bacterial colonies from agar plates, which may produce different results compared with clinical samples. In addition, ...
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Pulmonary arterial hypertension (PAH) is characterized by obstruction of pre-capillary pulmonary arteries, which leads to sustained elevation of pulmonary arterial pressure. Identifying those at risk through early interventions, such as genetic testing, may mitigate disease course. Current practice guidelines recommend genetic counseling and offering genetic testing to individuals with heritable PAH, idiopathic PAH, and their family members. However, it is unclear if PAH specialists follow these recommendations. Thus, our research objective was to determine PAH specialists knowledge, utilization, and perceptions about genetic counseling and genetic testing. A survey was designed and distributed to PAH specialists who primarily work in the USA to assess their knowledge, practices, and attitudes about the genetics of PAH. Participants responses were analyzed using parametric and non-parametric statistics and groups were compared using the Wilcoxon rank sum test. PAH specialists had low perceived and
We study the breakup of confined fluid threads at low flow rates to understand instability mechanisms. To determine the critical conditions between the earlier quasi-stable necking stage and the later unstable collapse stage, simulations and experiments are designed to operate at an extremely low flow rate. The critical mean radii at the neck centres are identified by the stop-flow method for elementary microfluidic configurations. Two distinct origins of capillary instabilities are revealed for different confinement situations. One is the gradient of capillary pressure induced by the confinements of geometry and external flow, whereas the other is the competition between the capillary pressure and internal pressure determined by the confinements ...
A device suitable for potentiometric analysis of liquid ions is disclosed, wherein a liquid transport member extending between and adjacent to two electrodes comprises two opposed surfaces spaced apart a distance to induce capillary flow of liquid between the surfaces.
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Partial exhaustion of autoregulation can also cause a decrease in CFR in IDC for which there are 3 putative mechanisms, all of them based on compensatory vasodilation at rest. First, the decrease in MCD and capillary D result in increased capillary resistance that is compensated by some arteriolar and venular vasodilation to maintain normal resting coronary flow (Online Appendix). Second, increased wall stress in IDC leads to increased myocardial oxygen demand that is met by increased coronary flow via arteriolar and venular vasodilation. Finally, the central aortic (and arterial pressure) may be low in end-stage IDC, which could also cause arteriolar and venular dilation in order to maintain a constant myocardial capillary hydrostatic pressure.. CFR is related to the coronary driving pressure (ΔP, difference between mean aortic and right atrial pressures) according to the formula CFR = ΔP/(Qr × Rmin) where Qr is resting coronary flow and Rmin is the MVR during hyperemia. ΔP may decrease if ...
Chemical restrain The lion was captured using 500mgs of Xylazine Hcl combined with 500mgs of Ketamine Hcl, it was darted on the right thigh and became recumbent after about 15 minutes. It was then blindfolded and transferred to a cool shade under a tree from where it was examined and treated. Examination and treatment The lion was in a good body condition and the vital physiological parameters were monitored and recorded as follows; respiration rate 28 cycles/minute, deep and regular, pulse rate 80 beats/minute, strong and regular, body temperature of 37 degrees Celsius, buccal, conjuctiva and anal mucosal membranes had pink normal colour, capillary refill time (CRT) was 2 seconds. The wound was suspected to have been caused by bites from other lions while fighting for a mate. Treatment The wound was carefully cleaned using a lot of clean water then debrided using 10% hydrogen peroxide and treated by tincture of iodine applied topically followed by oxytetracycline spray and cloxacillin ointment. ...
High-Risk Fever and Neutropenia: Patients with ANY of the following: hematologic malignancy in induction, consolidation or delayed intensification phase of therapy, hematologic malignancy with relapsed or persistent disease, neutropenia anticipated to last , 7 days, significant mucositis, BMT patients before neutrophil engraftment, focus of serious bacterial infection identified (e.g. pneumonia, abscess).. Low-Risk Fever and Neutropenia: Patients with NO High-Risk criteria AND ALL of the following: neutropenia anticipated to last , 7 days, clinically well-appearing, no focus of serious bacterial infection.. Clinically Unstable: ANY of the following: shaking chills or rigors, hypotension, hypothermia, abnormal pulses or capillary refill, respiratory distress or hypoxia, altered mental status, tachycardia out of proportion to fever. These guidelines are specific to patients whose neutropenia is related to chemotherapy or BMT conditioning and may not be appropriate for patients with neutropenia due ...
Although in The US we mostly think of ginger as a cooking spice, the root of the Zingiber officinale plant has been used as a medicine in Asian, Indian, and Arabic herbal traditions since ancient times as a digestive aid and an anti-inflammatory helping to treat arthritis and the common cold. Researchers from the University of Sydney have also found that extracts may help improve long-term diabetic blood sugar control.. Basil Roufogalis, professor of pharmaceutical chemistry and lead author of the study published in the journal Planta Medica, obtained extracts from Buderim Ginger, grown in Australia and recognized as the "Worlds Finest Ginger." The company exports to over 17 countries worldwide. The research team found that a component of the ginger, known as gingerol, was effective in increasing uptake of glucose by cells without the need of insulin.. In Type 2 diabetes, although the body produces the hormone insulin in the pancreas (opposed to Type 1 diabetes where little to no insulin is ...
The main task of a petroleum reservoir engineer is to produce oil and gas reservoirs with maximum economic rate and reaching the ultimate recovery. Reservoir evaluation processes need a reservoir description as completely and accurately as possible using a variety of methods from seismic and well testing to logging, cuttings analysis and coring. These methods present the engineer with a valuable and wide range of scales of information to well evaluate the reservoir and control its performance and improve oil recovery. The main goal of core analysis is to reduce uncertainty in reservoir evaluation processes created by the uncertainty degree in the input parameters at the different levels from reserve estimate level to the enhancement of reservoir performance level. In order to reach these targets, the exact determination of certain petrophysical properties are necessary such as rock porosity, relative permeability, water saturation, and capillary pressure at all stages of reservoir life and rock ...
Jon-Emile S. Kenny MD [@heart_lung]. Background. If venous pressure were always the downstream pressure of an artery, then when flow is zero, the arterial pressure should equal the venous pressure. For example, if one were to measure the coronary artery pressure and coronary sinus pressure at zero flow, their pressures should be equal. Yet, this has been done - when flow is zero in the hearts vascular tree, an instantaneous measurement of arterial and venous pressure reveals a large gradient. How can this be so? The reason is likely pre-capillary arterial tone, which prevents flow below a certain threshold pressure in the artery. This threshold pressure is called the critical closing pressure [Pcc] and creates vascular waterfall [VW]. VW simply means that the downstream [venous] pressure no longer regulates flow, just as the height of a waterfall does not affect the volume of water per unit time rolling over its crest.. Maintaining a Pcc in low flow states may be beneficial to maintain a ...
Nephrin is a key functional component of the slit diaphragm, the structurally unresolved molecular filter in renal glomerular capillaries. Abnormal nephrin or its absence results in severe proteinuria and loss of the slit diaphragm. The diaphragm is a thin extracellular membrane spanning the approximately 40-nm-wide filtration slit between podocyte foot processes covering the capillary surface. Using electron tomography, we show that the slit diaphragm comprises a network of winding molecular strands with pores the same size as or smaller than albumin molecules, as demonstrated in humans, rats, and mice. In the network, which is occasionally stratified, immunogold-nephrin antibodies labeled individually detectable globular cross strands, about 35 nm in length, lining the lateral elongated pores. The cross strands, emanating from both sides of the slit, contacted at the slit center but had free distal endings. Shorter strands associated with the cross strands were observed at their base. ...
The study cohort was comprised of 142 consecutive patients (99 women and 43 men, mean age 71 ± 9 years) with pulmonary hypertension and diastolic HF, and who were able to perform the 6-MWT. The mean duration of follow-up was 14 ± 10 months; 30.3% (n = 43) of the patients reached the combined endpoint. The investigators found that 6-MWT was an independent predictor of outcome, and was influenced by several parameters (including clinical, echocardiographic, hemodynamic, laboratory, and pulmonary). There was a correlation between the 6-MWT and mean pulmonary arterial pressure (p < 0.001), pulmonary compliance (p < 0.001), and transpulmonary pressure gradient (p < 0.001). In contrast to pure pre-capillary pulmonary hypertension, no correlation was found between cardiac output and the 6-MWT (p = 0.173). There was a significant negative correlation between 6-MWT and the extent of extracellular matrix in the left ventricular (LV) myocardium (R = -0.501, p =0.034).. ...
Eye pressure is the tissue pressure inside the eye which is determined by the balance between the production and drainage of the fluid inside the eye called the aqueous humor. Read on to find more about this condition and the treatment options available.. ...
The Digital Rocks Portal (DRP) repository allows managing, preserving, remote visualization and basic analysis of images of porous materials and experiments performed on them through your web-browser. In addition to images you can store any accompanying measurements (porosity, capillary pressure, permeability, electrical, NMR and elastic properties, etc.) required for both validation on modeling approaches and the upscaling and building of larger reservoir models. Click here for the DRP. ...
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This study examined the prognostic significance of pre- and post-capillary components of pulmonary hypertension (PH) in patients receiving cardiac resynchronization therapy (CRT). PH is common in patients with left ventricular systolic dysfunct
Genetic association of a MAPK8 expression quantitative trait locus with pre-capillary pulmonary hypertension in sickle cell disease. ASH Annual Meeting and Exposition, 7-10 Dec 2013. Xu Zhang, Wei Zhang, Shwu-Fan Ma, Ankit A Desai, Galina Y Miasnikova, Adelina Sergueeva, Tatiana Ammosova, Min Xu, Sergei A Nekhai, Taimur Abbasi, Nancy G Casanova, Martin H. Steinberg, Clinton T. Baldwin, Paola Sebastiani, Josef Prchal, Rick Kittles, Joe GN Garcia, Roberto F Machado, Victor R. Gordeuk. Center for Sickle Cell Disease, College of Medicine.. ...
Genetic association of a MAPK8 expression quantitative trait locus with pre-capillary pulmonary hypertension in sickle cell disease. ASH Annual Meeting and Exposition, 7-10 Dec 2013. Xu Zhang, Wei Zhang, Shwu-Fan Ma, Ankit A Desai, Galina Y Miasnikova, Adelina Sergueeva, Tatiana Ammosova, Min Xu, Sergei A Nekhai, Taimur Abbasi, Nancy G Casanova, Martin H. Steinberg, Clinton T. Baldwin, Paola Sebastiani, Josef Prchal, Rick Kittles, Joe GN Garcia, Roberto F Machado, Victor R. Gordeuk. Center for Sickle Cell Disease, College of Medicine.. ...
Recreated pressure profile of the hepatic arterial vasculature. The change in blood pressure (in mm Hg) is displayed for one cardiac cycle (per non-dimensional
Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Physiology. Östergötlands Läns Landsting, Heart Centre, Department of Thoracic and Vascular Surgery.ORCID iD: 0000-0002-9095-403X ...
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Abstract HYPOTHESIS: Selected elements of a simple physical examination algorithm accurately predict categories of shock. SETTING: A 350‐bed community teaching hospital. METHODS: Resident trainees who manage all critically ill and medically unstable patients were instructed to document capillary refill, (palpated) pulse volume, skin temperature, jugular venous pressure (JVP) and lung examination in all patients with prolonged (|30 minutes hypotension 7 cmH2O was more accurate than bilateral pulmonary crackles (|1/3 from bases) in predicting cardiogenic shock for low‐output patients with sensitivity of 82%, specificity of 79%, PPV of 75%, NPV of 85%, and overall accuracy of 80%. Using just skin temperature and JVP, the bedside approach correctly diagnosed 52/68 cases (overall accuracy = 76%). CONCLUSIONS: Simple bedside clinical examination findings correctly predict categories of shock in a majority of cases. Journal of Hospital Medicine 2010. © 2010 Society of Hospital Medicine.
Morphometric data from stable (nonedematous) isolated dog lungs, perfused with nearly cell-free perfusates, were compared to similar stereological evaluations of isolated dog lungs after induction of severe acute hydrostatic edema. In the edematous lungs, capillary surface and volume densities were substantially increased. Alveolar surface density was also increased. Thicknesses of the endothelial and type I epithelial cellular compartments of the air-blood barrier were unchanged. Thickness of the interstitial compartmemt of the air-blood barrier was substantially increased and this, in turn, caused an overall increase in mean thickness of the barrier. Volume densities of the nonparenchymal connective tissue spaces surrounding the extra-alveolar vessels and airways were also increased. In both the endothelial and type I epithelial cells cytoplasmic volume densities of pinocytotic vesicles were increased. In addition, the number of vesicles opening onto the luminal and albuminal cellular surfaces ...
During pregnancy, oxygen diffuses from maternal to fetal blood through villous trees in the placenta. In this paper, we simulate blood flow and oxygen transfer in feto-placental capillaries by converting three-dimensional representations of villous and capillary surfaces, reconstructed from confocal laser scanning microscopy, to finite-element meshes, and calculating values of vascular flow resistance and total oxygen transfer. The relationship between the total oxygen transfer rate and the pressure drop through the capillary is shown to be captured across a wide range of pressure drops by physical scaling laws and an upper bound on the oxygen transfer rate. A regression equation is introduced that can be used to estimate the oxygen transfer in a capillary using the vascular resistance. Two techniques for quantifying the effects of statistical variability, experimental uncertainty and pathological placental structure on the calculated properties are then introduced. First, scaling arguments are used to
In patients with angina and nonobstructive coronary-artery disease, coexistence of epicardial coronary spasm and increased microvascular resistance (IMR) is associated with worse outcomes, according to Japanese researchers.

Capillary Resistance  | Masqueliers OPCsCapillary Resistance | Masquelier's OPCs

In 1981, capillary resistance was tested in two groups of people averaging 46 years of age and suffering from high blood ... In one of the groups, capillary resistance increased from 15.4 cm Hg to 18.1 cm Hg, and in the other (double-blind test) group ... A "good" result means that patients had a noticeable improvement in capillary resistance after approximately two weeks. After ... Nevertheless, the researchers concluded that they achieved improved capillary resistance and permeability in this group of ...
more infohttps://www.masqueliersopcs.com/en/excerpt/capillary-resistance

Obesity, insulin resistance, and capillary recruitment  - Open Access RepositoryObesity, insulin resistance, and capillary recruitment - Open Access Repository

Rattigan, S, Bussey, CT, Ross, RM and Richards, SM 2007 , Obesity, insulin resistance, and capillary recruitment , ... Furthermore, agents that impair insulins vascular actions to recruit capillaries lead to acute insulin resistance in terms of ... capillary recruitment and the vascular defects associated with obesity and insulin resistance that may impair the capillary ... Obesity and insulin resistance are associated with dysregulated vascular function within muscle and a loss of insulin-mediated ...
more infohttps://eprints.utas.edu.au/4022/

Table of Contents - October 28, 1950, 2 (4686) | The BMJTable of Contents - October 28, 1950, 2 (4686) | The BMJ

Capillary Resistance and Adrenocortical Activity Br Med J 1950; 2 :971 (Published 28 October 1950) ...
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Microbial identification and drug resistance detection using a capillary flow dipstick - Global Health Technology ReviewMicrobial identification and drug resistance detection using a capillary flow dipstick - Global Health Technology Review

Microbial identification and drug resistance detection using a capillary flow dipstick November 21, 2016 dtordrup Diagnostics 0 ... Microbial identification and drug resistance detection using a capillary flow dipstick * Paper analytics for counterfeit and ... To test for antimicrobial resistance, the authors loaded the capillary tubes with increasing concentrations of the antibiotics ... including tests for microbial identification and antimicrobial resistance. With this technology, using a series of capillary ...
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Capillary fragility test - Biology-Online Dictionary | Biology-Online DictionaryCapillary fragility test - Biology-Online Dictionary | Biology-Online Dictionary

capillary resistance test. * vitamin c test. * rumpel-leede test (sign). See also: ... The capillary fragility test is a test using a blood pressure cuff. The cuff is applied for five minutes to the arm of a person ... Retrieved from "https://www.biology-online.org/dictionary/index.php?title=Capillary_fragility_test&oldid=100030" ...
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Compromised microvascular oxygen delivery increases brain tissue vulnerability with age | Scientific ReportsCompromised microvascular oxygen delivery increases brain tissue vulnerability with age | Scientific Reports

... reduced capillary density and higher capillary transit time heterogeneity, the capillary network fails to compensate for larger ... Our data suggests that from young to middle-age, a well-regulated capillary oxygen supply maintains the oxygen availability in ... RBC volume/capillary volumetric flow; RBC volume was considered to be 55 μm3 for C57Bl/6 mice83); and (6) capillary resistance ... Estimated capillary density from CBF and capillary flow data using the simplified parallel capillary tubes model explained ...
more infohttps://www.nature.com/articles/s41598-018-26543-w?error=cookies_not_supported&code=94968664-b69f-4d71-b526-29d00bd60c8d

Advanced Search Results - Public Health Image Library(PHIL)Advanced Search Results - Public Health Image Library(PHIL)

Categories: Capillary Resistance Image Types: Photo, Illustrations, Video, Color, Black&White, PublicDomain, ...
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Vendrell Circul20 - 20 blisters - FARMACIA INTERNACIONALVendrell Circul20 - 20 blisters - FARMACIA INTERNACIONAL

Action vitanmínatica P: Low permeability of capillaries and in consequence the leakage of fluids and edema. Increases... ... Increases capillary resistance. How to use: 1 ampoule daily, preferably in the morning. Composition: Red Vine (Vitis vinifera ... Action vitanmínatica P: Low permeability of capillaries and in consequence the leakage of fluids and edema. Increases... ... Action vitanmínatica P: Low permeability of capillaries and in consequence the leakage of fluids and edema. ...
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Quantitative Proteomics of Transporter Expression in Brain Capillary Endothelial Cells Isolated from P-Glycoprotein (P-gp),...Quantitative Proteomics of Transporter Expression in Brain Capillary Endothelial Cells Isolated from P-Glycoprotein (P-gp),...

... breast cancer resistance protein (Bcrp), and P-gp/Bcrp knockout mice. After the isolation of brain capillary endothelial cells ... breast cancer resistance protein. Mdr1. gene encoding the murine P-glycoprotein. Bcrp1. gene encoding the murine breast cancer ... multidrug resistance-associated protein. MRM. multiple reaction monitoring. SLC. solute carrier. PBS. phosphate-buffered saline ... There was no significant difference in the expression of any of the measured proteins in the brain capillary endothelial cells ...
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GRAPE: Uses, Side Effects, Interactions and Warnings - WebMDGRAPE: Uses, Side Effects, Interactions and Warnings - WebMD

Lagrue, G., Olivier-Martin, F., and Grillot, A. [A study of the effects of procyanidol oligomers on capillary resistance in ... Dartenuc P, Marache P, and Choussat H. [Capillary resistance in geriatry. Study of a microangioprotector: endotelon.]. Bordeaux ... Fromantin M. [OPC in the treatment of capillary weakness and retinopathy in diabetics. A propos of 26 cases]. Med Int 1982;16( ... The effect of Endotelon on the capillary fragility index of a specified controlled group: cirrhosis patients]. Gazette Medicale ...
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Grape: Uses, Side Effects, Interactions, Dosage, and WarningGrape: Uses, Side Effects, Interactions, Dosage, and Warning

Lagrue, G., Olivier-Martin, F., and Grillot, A. [A study of the effects of procyanidol oligomers on capillary resistance in ... Dartenuc P, Marache P, and Choussat H. [Capillary resistance in geriatry. Study of a microangioprotector: endotelon.]. Bordeaux ... Fromantin M. [OPC in the treatment of capillary weakness and retinopathy in diabetics. A propos of 26 cases]. Med Int 1982;16( ... The effect of Endotelon on the capillary fragility index of a specified controlled group: cirrhosis patients]. Gazette Medicale ...
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Grape: MedlinePlus SupplementsGrape: MedlinePlus Supplements

Lagrue, G., Olivier-Martin, F., and Grillot, A. [A study of the effects of procyanidol oligomers on capillary resistance in ... Dartenuc P, Marache P, and Choussat H. [Capillary resistance in geriatry. Study of a microangioprotector: endotelon.]. Bordeaux ... Fromantin M. [OPC in the treatment of capillary weakness and retinopathy in diabetics. A propos of 26 cases]. Med Int 1982;16: ... The effect of Endotelon on the capillary fragility index of a specified controlled group: cirrhosis patients]. Gazette Medicale ...
more infohttps://medlineplus.gov/druginfo/natural/472.html

Uva: MedlinePlus suplementosUva: MedlinePlus suplementos

Lagrue, G., Olivier-Martin, F., and Grillot, A. [A study of the effects of procyanidol oligomers on capillary resistance in ... Dartenuc P, Marache P, and Choussat H. [Capillary resistance in geriatry. Study of a microangioprotector: endotelon.]. Bordeaux ... Fromantin M. [OPC in the treatment of capillary weakness and retinopathy in diabetics. A propos of 26 cases]. Med Int 1982;16: ... The effect of Endotelon on the capillary fragility index of a specified controlled group: cirrhosis patients]. Gazette Medicale ...
more infohttps://medlineplus.gov/spanish/druginfo/natural/472.html

High-load resistance exercise with superimposed vibration and vascular occlusion increases critical power, capillaries and lean...High-load resistance exercise with superimposed vibration and vascular occlusion increases critical power, capillaries and lean...

High-load resistance exercise with superimposed vibration and vascular occlusion increases critical power, capillaries and lean ... High-load resistance exercise with superimposed vibration and vascular occlusion increases critical power, capillaries and lean ... PURPOSE: It is a widely accepted premise in the scientific community and by athletes alike, that adding resistance exercise to ... RESULTS: vibroX increased CP (P = 0.001), overall capillary-to-fiber ratio (P = 0.001) and thigh lean mass (P , 0.001), while ...
more infohttps://www.zora.uzh.ch/id/eprint/84797/

Snyders test | definition of Snyders test by Medical dictionarySnyder's test | definition of Snyder's test by Medical dictionary

test, capillary resistance (Rumpel-Leede-Hess test, Gothlins test),. n a test of capillary fragility based on the number of ... n a test for capillary fragility based on counting petechiae in a given area of the arm after application of the rubber cuff of ... n.pr a means of measuring surface hardness by resistance to the penetration of an indenting tool made of diamond. Produces an ... n.pr a means of determining surface hardness by measuring the amount of resistance to the indentation of a steel ball. Recorded ...
more infohttps://medical-dictionary.thefreedictionary.com/Snyder

Diazo test | definition of diazo test by Medical dictionaryDiazo test | definition of diazo test by Medical dictionary

test, capillary resistance (Rumpel-Leede-Hess test, Gothlins test),. n a test of capillary fragility based on the number of ... n a test for capillary fragility based on counting petechiae in a given area of the arm after application of the rubber cuff of ... n.pr a means of measuring surface hardness by resistance to the penetration of an indenting tool made of diamond. Produces an ... n.pr a means of determining surface hardness by measuring the amount of resistance to the indentation of a steel ball. Recorded ...
more infohttp://medical-dictionary.thefreedictionary.com/diazo+test

Microcirculation | Springer for Research & DevelopmentMicrocirculation | Springer for Research & Development

The capillary resistance to flow ibid, 2: 199-212.Google Scholar. *. Proudman, I. and Pearson, J. R. A. (1957). Expansions at ... Gaehtgens, P. (1980). Flow of blood through narrow capillaries : Rheological mechanisms determining capillary hematocrit and ... Lew, H. S. and Fung, Y. C. (1970a). Plug effect of erythrocytes in capillary blood vessels Biophysical J. 10: 80-99.ADSCrossRef ... Direct measurement of capillary pressure in splanchmic mesenteries Circulation Res. 34: 858-868.CrossRefGoogle Scholar ...
more infohttps://rd.springer.com/chapter/10.1007/978-1-4757-3884-1_5

Tresorie - SURGICAL SHOCK [Surgical Shock]Tresorie - SURGICAL SHOCK [Surgical Shock]

We know that peripherally the capillary resistance is diminished; so, too, is the motive power of the cardiac centres. If the ... it is far more likely that it is a measure of the power of resistance possessed by certain organs or structures. CASE III. will ...
more infohttp://homeoint.org/hompath/articles/101.html

Blueberries: Queens of the Berry World - Skinstore USBlueberries: Queens of the Berry World - Skinstore US

The vaso-protective effects of blueberries began to be described in the 1960s when the fruits capillary resistance and ... Since, studies have confirmed that blueberries increase capillary resistance.. So eat your blueberries, but put them on your ... Blueberries play a role in the management of flushing symptoms: they tighten and protect fine capillaries thanks to ... The least known benefits of blueberries are their vaso-protective (protection of the cutaneous capillaries) properties.. ...
more infohttps://www.skinstore.com/blog/archive/blueberries-queens-of-the-berry-world/

Rapid determination of multidrug resistance-associated protein in cancer cells by capillary electrophoresis immunoassay<...Rapid determination of multidrug resistance-associated protein in cancer cells by capillary electrophoresis immunoassay<...

Mbuna J, Kaneta T, Imasaka T. Rapid determination of multidrug resistance-associated protein in cancer cells by capillary ... Rapid determination of multidrug resistance-associated protein in cancer cells by capillary electrophoresis immunoassay. In: ... keywords = "Cancer cell, Capillary electrophoresis immunoassay, Doxorubicin, Laser-induced fluorescence, Multidrug resistance- ... Rapid determination of multidrug resistance-associated protein in cancer cells by capillary electrophoresis immunoassay. / ...
more infohttps://okayama.pure.elsevier.com/en/publications/rapid-determination-of-multidrug-resistance-associated-protein-in

Progressive Labs Bilberry 60cProgressive Labs Bilberry 60c

This protection acts on two levels; it increases the capillary resistance and decreases the capillary permeability. Bilberry ...
more infohttps://www.integrativepsychiatry.net/progressive-labs-bilberry.html

Interviews with Nutritional Experts: Bioflavonoids, Vitamin P and Inflammation , Interview with Dr.  Miklos Gabor   as...Interviews with Nutritional Experts: Bioflavonoids, Vitamin P and Inflammation , Interview with Dr. Miklos Gabor as...

So, if low capillary resistance is common in people with high blood pressure, and this is a major factor that leads to stroke ... Thus, Pycnogenol(R) increases pathologically low capillary resistance, decreases undesirably high capillary permeability and ... we examined their ability to normalize lowered capillary resistance. The permeability of capillaries is quite important to ... was selected because its indications are to increase pathologically low capillary resistance, to decrease an enhanced capillary ...
more infohttp://www.healthy.net/scr/Interview.aspx?Id=172

Hypercapnia - WikipediaHypercapnia - Wikipedia

Hypercapnia may increase pulmonary capillary resistance.[citation needed] In severe hypercapnia (generally PaCO2 greater than ...
more infohttps://en.wikipedia.org/wiki/Hypercapnia
  • Mbuna, J , Kaneta, T & Imasaka, T 2011, ' Rapid determination of multidrug resistance-associated protein in cancer cells by capillary electrophoresis immunoassay ', Journal of Chromatography A , vol. 1218, no. 25, pp. 3923-3927. (elsevier.com)
  • Understanding the mechanisms of insulin-mediated capillary recruitment and its impairment may lead to new treatment avenues to prevent the progression of obesity to diabetes. (edu.au)
  • In 1980, OPCs were tested double-blindly on a group of elderly people who, either spontaneously or as the result of taking one gram of acetylsalicylic acid per day, had a very low capillary resistance. (masqueliersopcs.com)
  • The objective of this study was to quantitatively examine the protein expression of relevant transporters and other proteins in the brain capillary endothelial cells isolated from wild-type mice and P-glycoprotein (P-gp), breast cancer resistance protein (Bcrp), and P-gp/Bcrp knockout mice. (aspetjournals.org)
  • There was no significant difference in the expression of any of the measured proteins in the brain capillary endothelial cells across the genotypes, except for the lack of expression of the corresponding protein in the mice that had a genetic deletion of P-gp or Bcrp. (aspetjournals.org)
  • The adenosine triphosphate (ATP) binding-cassette (ABC) transporters are a superfamily of cellular proteins that have been partly implicated as a cause of multidrug resistance (MDR) in cancer cells. (elsevier.com)
  • The ABC superfamily consists of P-glycoprotein, multidrug resistance-associated proteins (MRP) and breast cancer-related proteins, of which MRP is of particular interest because of its ability to efflux a broader range of substrates. (elsevier.com)
  • With this technology, using a series of capillary flow tubes of approximately 200 micrometer diameter, roughly 100x the size of a single bacterium, Dr. Nuno Reis and colleagues demonstrate a platform for undertaking multiple cellular assays simultaneously, without the bulky equipment used in many other microfluidic applications. (davidtordrup.dk)
  • Using capillary flow technology, the authors were able to miniaturise classical microbiological assays for the identification of particular bacteria and detection of drug resistance. (davidtordrup.dk)
  • After the isolation of brain capillary endothelial cells, a highly sensitive liquid chromatography-tandem mass spectrometry method with multiple reaction monitoring was used to determine the quantitative expression of membrane transporters at the blood-brain barrier (BBB) of the various mouse genotypes. (aspetjournals.org)
  • In conclusion, using a quantitative proteomic approach, we have shown that there are no changes in the expression of several relevant transporters in brain capillary endothelial cells isolated from single and combination knockout mice. (aspetjournals.org)
  • Our data suggests that from young to middle-age, a well-regulated capillary oxygen supply maintains the oxygen availability in cerebral tissue, despite decreased tissue pO 2 next to arterioles. (nature.com)
  • We developed a simple, fast (total analysis time of 3h) capillary electrophoresis immunoassay (CEIA) for the quantification of MRP1 in cancer cells. (elsevier.com)
  • A "good" result means that patients had a noticeable improvement in capillary resistance after approximately two weeks. (masqueliersopcs.com)
  • In 1981, capillary resistance was tested in two groups of people averaging 46 years of age and suffering from high blood pressure and other problems. (masqueliersopcs.com)
  • In one of the groups, capillary resistance increased from 15.4 cm Hg to 18.1 cm Hg, and in the other (double-blind test) group, it increased from 14.8 cm Hg to 18 cm Hg. (masqueliersopcs.com)
  • METHODS: Twenty-one young, endurance-trained males were randomly assigned either to a vibroX (n = 11) or resistance (n = 10) training group. (uzh.ch)
  • The present study defines protocols for routine and reliable assessment of human resistance artery function. (ahajournals.org)
  • Together these data suggest a strong connection between the loss of insulin-mediated capillary recruitment and the development of insulin resistance. (edu.au)