Most doctors consider this a normal physiological phenomenon and advise against treatment. Fordyce spots are completely benign ... Individual sebaceous cells are large, with central dark nuclei and abundant foamy cytoplasm. Some diseases may appear similar ... The pathologist must be careful to differentiate such lesions from salivary neoplasms with sebaceous cells, such as sebaceous ...
A physiological change in the cells must have occurred to allow this phenomenon. Low salinity is desirable for survival, as ... Also, availability of silicates, a nutrient for the organism, can affect photosynthetic efficiency and cell composition. ...
A new physiological phenomenon of Desired Metaplasia for regeneration of tissues and organs in vivo. Annals of NYAS 1998. Bynum ... 2016 - The first ever artificial pancreas was created 2019 - 3D-print heart from human patient's cells. 2020 - First vaccine ... Matapurkar B G. (1995). US international Patent 6227202 and 20020007223.medical use of Adult Stem cells. ... Adult stem cell use in regeneration of tissues and organs in vivo - B. G Matapurkar U.S . International Patent 1996 - Dolly the ...
... refers to a phenomenon for which the orientation of cells and stress fibers is influenced by geometrical ... on the surface with nano-micro-groove-like pattern and cell physiological effects". Chinese Science Bulletin. 54 (18): 3200- ... A similar effect can be obtained when cells are cultured on flat surfaces with lines of proteins printed on top (to which cells ... The Interplay Among Cell Traction, Fibrillar Network Deformation, Fibril Alignment, and Cell Contact Guidance". Journal of ...
The bottleneck exploits stochastic processes in the cell to increase in the cell-to-cell variability in mutant load as an ... When this occurs, it is known as reaching threshold, and it usually results in physiological consequences. Symptoms of severe ... An example of this phenomenon is Leber optic atrophy. Generally, individuals with this condition do not experience vision ... Many cell divisions and a great deal of time are required for a cell to accumulate enough mutant mitochondria to cause symptoms ...
Flow-enhanced cell adhesion is still an unexplained phenomenon that could result from a transport-dependent increase in on- ... This topic was finally able to be studied thoroughly under physiological shear stress conditions using a typical flow chamber. ... Prabhakarpandian B, Shen MC, Pant K, Kiani MF (November 2011). "Microfluidic devices for modeling cell-cell and particle-cell ... Since the first experiments, a strange phenomenon was observed. Binding interactions between the white blood cells and the ...
These are cells unspecific resistance modulation and influencing the speed of physiological processes occurring in the cell. ... Because of universality of this phenomenon it was named "the law of intermittent activity of functioning structures" ( ... Regulation of tissue cell mass by the TAS mechanism can be carried out in two physiological regimes - ether by formation of " ... Meanwhile, the cell stress concept considers only the first possibility. At the present moment, two physiological functions of ...
... have become iconic medical and physiological textbook images of these phenomena. Another major research interest was the ... His work developed to address the permeation of potassium ions in muscle cells. During a Rockefeller travelling scholarship in ... "An interview with Otto Hutter" (PDF). Physiological Society. Retrieved 29 July 2015. University of Glasgow. "Biographical ... Physiological Reports. 5 (6): e13165. doi:10.14814/phy2.13165. ISSN 2051-817X. PMC 5371556. PMID 28320898. The Guardian, ...
He also worked extensively on developing accurate methods to measure blood pressure and other physiological phenomena (e.g. ... J Mol Cell Cardiol. 22 (3): 253-277. doi:10.1016/0022-2828(90)91459-K. PMID 2192068. Norman Sharpe (2006). "Hypertension: from ... This law states that "Within physiological limits, the force of contraction is directly proportional to the initial length of ... J Mol Cell Cardiol 1990; 22: 253-277) Kritik der elastischen Manometer, 1903 Die Registrierung des Pulses durch einen ...
Nephron remodeling increases the number of distal convoluted cells, principle cells, and intercalated cells. These cells have ... Prolonged usage of loop diuretics will also contributes to resistance through "braking phenomenon". This is the body ... physiological response to reduced extracellular fluid volume, where renin-angiotensin-aldosterone system will be activated ... Loop diuretics also inhibits NKCC2 at macula densa, reducing sodium transported into macula densa cells. This stimulates the ...
This phenomenon is referred to as stem cell transdifferentiation or plasticity. It can be induced by modifying the growth ... There is yet no consensus among biologists on the prevalence and physiological and therapeutic relevance of stem cell ... these cells have the same ability as embryonic stem cells to develop into many different cell types. Olfactory stem cells hold ... such as mesenchymal stem cell, adipose-derived stem cell, endothelial stem cell, etc.). A great deal of adult stem cell ...
In: Botanical and physiological memoirs…, 1853: The phenomenon of rejuvenescence in nature, especially in the life and ... He translated: On Vegetable Cells, by Carl von Nägeli; for the Ray Society, 1846. Chemical Field Lectures, by Julius Adolph ... Outlines of Structural and Physiological Botany, 1847. Reports and Papers on Botany, Ray Society, 1849. The Rudiments of Botany ... Principles of the Anatomy of the Vegetable Cell, by Hugo von Mohl, 1851. ...
When skin is stretched beyond its physiological limit, mechanotransduction pathways are activated. This leads to cell growth as ... Other biological phenomena such as tissue inflammation can also be considered expansion (see tissue inflammation below). Skin ... Tissue engineering of replacement skin: the crossroads of biomaterials, wound healing, embryonic development, stem cells and ... well as to the formation of new cells. In some cases, this may be accomplished by the implantation of inflatable balloons under ...
A DamID protocol for single cells has also been developed and applied to human cells. Single cell approaches can highlight the ... The targeted DamID (TaDa) approach uses the phenomenon of ribosome reinitiation to express Dam-fusion proteins at appropriately ... This allows for investigation into developmental or physiological processes in animal models. ... "Genome-wide maps of nuclear lamina interactions in single human cells". Cell. 163 (1): 134-147. doi:10.1016/j.cell.2015.08.040 ...
J Neurol 254(2):257-258 Rüdel, R; Lehmann-Horn, F (1985). "Membrane changes in cells from myotonia patients". Physiological ... Trip J, Faber CG, Ginjaar HB, van Engelen BG, Drost G (2007) Warm-up phenomenon in myotonia associated with the V445M sodium ... When many action potentials are elicited subsequently more K+ is expelled from the cell into the transverse tubular system. As ... Lossin, Christoph (2013). "Nav1.4 slow-inactivation: Is it a player in the warm-up phenomenon of myotonic disorders?". Muscle ...
Auxin has a strengthening effect on the elongation growth of the cells. In the case of nutation phenomena, it is possible that ... Consequently, the concave and convex sides show profound physiological differences. The observation that in the hypocotyl the ... they were the first to separate cell walls from the root tip of broad beans. They analysed these cell walls and concluded that ... of protein was found in the cell walls of the plants examined.: 547, 569 Later researchers found protein in the cells but were ...
Additional work by the Schwartz group has shown that protective autoimmunity is a naturally occurring physiological phenomenon ... Other cell types, such as B cells and even neural progenitor cells, can promote regulation of immune response in the CNS. Stem ... a population of CNS-resident immune cells, which can act as phagocytes, and antigen-presenting cells. CD4+ T helper cells that ... dictate the profile of the subsequent T cell response. The interaction between the T cells and the microglia/dendritic cells ...
In many species it has been demonstrated that HSPs results in improved physiological phenomena such as photosynthesis, ... Similar analogy in human medical terms is high blood pressure or high body temperature or high white blood cells in body is an ... Evaluating physiological traits to complement empirical selection for wheat in warm environments. Euphytica 100:84-95., Fokar, ... At very high temperatures cause severe cellular injury and cell death may occur within short time, thus leading to a ...
... a mutation of a gene coding for an ion channel which disrupts electrical phenomenon underlying physiological processes. ... Owing to the presence of cell or debris in the way of the pipette and a target cell the preparation will need to be slightly ... During recording cell viability needs to be maintained as being patch-clamped is stressful for the cell. Negative pressure is ... It is calculated as the sum of the NMS score from all broad cell types that does not match the assigned cell class. Quality ...
Part of the sperm's cell membrane then fuses with the egg cell's membrane, and the contents of the head sink into the egg. In ... This is referred to as spontaneous acrosome reaction (SAR). It is now known that in a certain sense, this phenomenon is ... In humans, on the other hand, it remains disputed where exactly the acrosome reaction is initiated in physiological ... It is then expressed as a percentage of the counted cells. For assessment with flow cytometry, the washed cells are incubated ...
Examples of physiological regeneration are the continual replacement of cells of the skin and repair of the endometrium after ... In order to prevent starvation a planarian will use their own cells for energy, this phenomenon is known as de-growth. Limb ... Second, the blastemal cells will undergo cell proliferation, patterning, cell differentiation and tissue growth using similar ... Macrophages are a type of repairing cell that devour dead cells and pathogens, and trigger other immune cells to respond to ...
During stationary growth phase when B. subtilis are at high cell density, approximately 10% of the cells in a population are ... This phenomenon was termed "autoinduction" because it involved a molecule (autoinducer) that accumulated in a growth medium and ... Sporulation, on the other hand, is a physiological response of B. subtilis to depletion of nutrients within a particular ... Dunny, G.M.; Leonard, B.A. (1997). "Cell-cell communication in gram-positive bacteria". Annu. Rev. Microbiol. 51: 527-564. doi: ...
The term osmosis originated in 1827 and its importance to physiological phenomena realized, but it wasn't until 1877, when the ... All known living things are made up of one or more cells All living cells arise from pre-existing cells by division. The cell ... All cells arise only from pre-existing cells However, the idea that all cells come from pre-existing cells had already been ... Besides stating "the cell is the fundamental element of organization", Dutrochet claimed that cells were also a physiological ...
Among the phenomena he investigated were nerve compression, plasmolysis in cartilage cells, the electrical conductivity of ... he worked at the Physiological Institute in Bucharest. Călugăreanu founded Știința tuturor ("Science for All") magazine in 1918 ... a professor at Bucharest's higher school of veterinary medicine from 1902 to 1905 and an associate professor of physiological ...
... allowing for the examination of a wide range of physiological phenomena and interactions. Parabiosis has been employed in ... The conjoining of the two animals reversed the effects of age on the myelination cells. The ability of the young mouse's cells ... Cell Stem Cell. 10 (1): 96-103. doi:10.1016/j.stem.2011.11.019. PMC 3714794. PMID 22226359. "Parabiosis Definition & Meaning - ... Parabiosis is a laboratory technique used in physiological research, derived from the Greek word meaning "living beside." The ...
The physiological phenomena of action potentials are possible because voltage-gated ion channels allow the resting potential ... a category of cell include neurons, muscle cells, and endocrine cells, as well as in some plant cells. These action potentials ... Funk, Richard HW; Monsees, Thomas K (2006). "Effects of Electromagnetic Fields on Cells: Physiological and Therapeutical ... Short-lived electrical events called action potentials occur in several types of animal cells which are called excitable cells ...
Ishiwata's research interests go beyond the mechanical and physiological import of SPOC to bio-motile systems focusing on the ... It was an important breakthrough regarding a phenomenon that had been "almost completely ignored," he says. ... meiotic spindle and cells (cardiac, HeLa, etc.). He expects that the multiplex network of Chemo-Mechanical Feedback (CMF) loops ...
... cell phenomena, and immunity G05 - genetic processes G06 - biochemical phenomena, metabolism, and nutrition G07 - physiological ... chemical and pharmacologic phenomena G13 - genetic phenomena G14 - genetic structures H - Physical Sciences H01 - natural ... cells A12 - fluids and secretions A13 - animal structures A14 - stomatognathic system A15 - hemic and immune systems A16 - ... psychological phenomena and processes F03 - mental disorders F04 - behavioral disciplines and activities G - Biological ...
... whether mechanical phenomena are side products of biological processes or they are controlled at the genetic and physiological ... A unique tool for exploring cell and tissue mechanics in vivo", Methods in Cell Biology, Cell Polarity and Morphogenesis, ... Infected red blood cells are generally stiffer, so through his device, stiffer red blood cells would be closer to the vessel ... The relative deformation of the cell and the tip can be used to estimate how much force was applied and how stiff the cell is. ...
... referred to as the circadian system that regulate physiological phenomena (hormone levels, metabolic function, body temperature ... There are candidate genes (called CLOCK genes) that exist in most cells in the body and brain, ... November 2007). "High-fat diet disrupts behavioral and molecular circadian rhythms in mice". Cell Metabolism. 6 (5): 414-21. ... Cell. 110 (2): 251-60. doi:10.1016/S0092-8674(02)00825-5. PMID 12150932. Larsson M, Duffy DL, Zhu G, Liu JZ, Macgregor S, McRae ...