• proteins
  • In the February issue of Nature Genetics , Ballif and his colleagues report on their discovery of two proteins on red blood cells responsible for these lesser-known blood types. (uvm.edu)
  • Only 30 proteins have previously been identified as responsible for a basic blood type," Ballif notes, "but the count now reaches 32. (uvm.edu)
  • The last new blood group proteins to be discovered were nearly a decade ago, Ballif says, "so it's pretty remarkable to have two identified this year. (uvm.edu)
  • There Arnaud and his team conducted cellular and genetic tests confirming that these proteins were responsible for the Langereis and Junior blood types. (uvm.edu)
  • With the findings from this new research, health care professionals will now be able to more rapidly and confidently screen for these novel blood group proteins, Ballif wrote in a recent news article. (uvm.edu)
  • If our own blood cells don't have these proteins, they're not familiar to our immune system," Ballif says, so the new blood doesn't "look like self" to the complex cellular defenses of the immune system. (uvm.edu)
  • The cell membrane is composed of proteins and lipids, and this structure provides properties essential for physiological cell function such as deformability and stability while traversing the circulatory system and specifically the capillary network. (wikipedia.org)
  • Having oxygen-carrying proteins inside specialized cells (as opposed to oxygen carriers being dissolved in body fluid) was an important step in the evolution of vertebrates as it allows for less viscous blood, higher concentrations of oxygen, and better diffusion of oxygen from the blood to the tissues. (wikipedia.org)
  • Plasma, which constitutes 55% of blood fluid, is mostly water (92% by volume), and contains dissipated proteins, glucose, mineral ions, hormones, carbon dioxide (plasma being the main medium for excretory product transportation), and blood cells themselves. (wikipedia.org)
  • Estimation
  • Korop O.A. Integral estimation of efficiency of development of system of the specialized medicare in the conditions of introduction and functioning of general practice - domestic medicine. (ozizdrav.ru)
  • erythrocyte
  • Human blood fractioned by centrifugation: Plasma (upper, yellow layer), buffy coat (middle, thin white layer) and erythrocyte layer (bottom, red layer) can be seen. (wikipedia.org)
  • The aim of this study was to evaluate the utility of blood group genotyping and compare the molecular typing of erythrocyte antigens with the established serological methods. (readbyqxmd.com)
  • complete blood count, a series of tests of the peripheral blood, including the erythrocyte count , erythrocyte indices , leukocyte counts , and sometimes platelet count . (tripod.com)
  • Cf. total leukocyte c. erythrocyte count, determination of the number of erythrocytes in a unit volume of blood that has been diluted in an isotonic solution, done with an automatic counter such as a flow cytometer . (tripod.com)
  • it may be either a direct platelet count with a hemacytometer and a microscope or an indirect platelet count in which the ratio of platelets to erythrocytes on a blood smear is determined and the number of platelets is computed from the erythrocyte count. (tripod.com)
  • red blood cell count, red cell count, erythrocyte c. reticulocyte count, a calculation of the number of reticulocytes in 1 mm 3 of peripheral blood, recorded as an absolute number or as the percentage of the erythrocyte count . (tripod.com)
  • carbon dioxide
  • most waste carbon dioxide, however, is transported back to the pulmonary capillaries of the lungs as bicarbonate (HCO3−) dissolved in the blood plasma. (wikipedia.org)
  • In animals with lungs, arterial blood carries oxygen from inhaled air to the tissues of the body, and venous blood carries carbon dioxide, a waste product of metabolism produced by cells, from the tissues to the lungs to be exhaled. (wikipedia.org)
  • cell
  • This can lead to hemolytic anemia, in which the body destroys the transfused blood, leading to low red blood cell counts. (wikipedia.org)
  • As red blood cells approach the renal medulla (where there is a high concentration of urea), the urea transporter allows for rapid uptake of urea and prevents cell shrinkage in the hypertonic environment of the medulla. (wikipedia.org)
  • In our blood the dominant thing in there are cells and red blood cell are the most abundant. (lifepositivism.com)
  • Red blood cells (RBCs), also called erythrocytes, are the most common type of blood cell and the vertebrate's principal means of delivering oxygen (O2) to the body tissues-via blood flow through the circulatory system. (wikipedia.org)
  • Red blood cells are also known as RBCs, red cells, red blood corpuscles, haematids, erythroid cells or erythrocytes (from Greek erythros for "red" and kytos for "hollow vessel", with -cyte translated as "cell" in modern usage). (wikipedia.org)
  • Oxygen can easily diffuse through the red blood cell's cell membrane. (wikipedia.org)
  • red blood cell width is on average about 25% larger than capillary diameter, and it has been hypothesized that this improves the oxygen transfer from red blood cells to tissues. (wikipedia.org)
  • However, there are some exceptions concerning shape in the artiodactyl order (even-toed ungulates including cattle, deer, and their relatives), which displays a wide variety of bizarre red blood cell morphologies: small and highly ovaloid cells in llamas and camels (family Camelidae), tiny spherical cells in mouse deer (family Tragulidae), and cells which assume fusiform, lanceolate, crescentic, and irregularly polygonal and other angular forms in red deer and wapiti (family Cervidae). (wikipedia.org)
  • In this study, we determined the prevalence of various red blood cell (RBC) antigens from a donor viewpoint and estimated the demand for specific antigen-negative blood from a patient viewpoint. (readbyqxmd.com)
  • Called also red blood cell c. and red cell c. filament-nonfilament count, in the differential leukocyte count, determination of the number of juvenile and mature leukocytes. (tripod.com)
  • ABO blood group, the major human blood group system, dependent on the presence or absence of A and B antigens, which are largely glycolipids on the cell membrane. (tripod.com)
  • transfusions
  • This will leave them better prepared to have blood ready when blood transfusions or other tissue donations are required," he notes. (uvm.edu)
  • arterial blood
  • Pulse oximetry takes advantage of the hemoglobin color change to directly measure the arterial blood oxygen saturation using colorimetric techniques. (wikipedia.org)
  • cells of mammals
  • The red blood cells of mammals are typically shaped as biconcave disks: flattened and depressed in the center, with a dumbbell-shaped cross section, and a torus-shaped rim on the edge of the disk. (wikipedia.org)
  • vessels
  • This distinctive biconcave shape optimises the flow properties of blood in the large vessels, such as maximization of laminar flow and minimization of platelet scatter, which suppresses their atherogenic activity in those large vessels. (wikipedia.org)
  • Blood is circulated around the body through blood vessels by the pumping action of the heart. (wikipedia.org)
  • Compatibility
  • Compatibility of ABH antigens has important impacts on the prognoses of transplants of kidneys, livers and hearts, but less so on marrow, bone or cornea transplantation prognoses. (wikipedia.org)
  • Many people never took into considerations the risky implications of getting married and giving birth to children without first testing to ascertain the compatibility of their blood types and genotype. (lifepositivism.com)
  • presence
  • Diagnosis is by the presence of erythroblasts, high reticulocyte count and a positive direct antiglobulin test (DAT) in cord blood and a positive indirect antiglobulin test (IAT) in maternal blood. (ndtv.com)
  • In terms of anatomy and histology, blood is considered a specialized form of connective tissue, given its origin in the bones and the presence of potential molecular fibers in the form of fibrinogen. (wikipedia.org)
  • genetic
  • Although the antigens for the Junior and Langereis (or Lan) blood types were identified decades ago in pregnant women having difficulties carrying babies with incompatible blood types, the genetic basis of these antigens has been unknown until now. (uvm.edu)
  • fibrin
  • There is activation of the coagulation process with consumption of platelets and coagulation factors with thrombin formation overwhelming the normal inhibition system and resulting in systemic fibrin deposition. (brainscape.com)
  • platelet
  • Damage to blood vessel walls during tissue injury leads to the rapid formation of a platelet plug to prevent bleeding. (brainscape.com)