secretion,in biology, substance elaborated by the living material of an animal or plant. Secretions in humans can be produced by a single cell or by a group of cells commonly called a gland. Some secretions perform special functions in the body (true secretions); others are eliminated as wast...
intrinsically resistant to the damaging effects of gastric acid and other insults. Nonetheless, excessive gastric acid secretion is a major problem in humans, leading togastritis,gastric ulcers, and peptic acid disease. The gold standard assay for gastric acid secretion was originally developed by ...
and this decreases secretion. Opiates have been used asantidiarrhealdrugs for as long as humans have grown poppies andextracted morphine and heroin. Otherantidiarrheal drugswork by similar mechanisms.Clonidineis an alpha2adrenergicagonist, which acts at inhibitorynoradrenergic receptorson secretomotor neurons...
The fundamental aspects of biliary lipid secretion relate first to the quantitative determinants of hepatocytic cholesterol secretion into the bile and, second, to the cell biology of this process. There is a tight curvilinear coupling between the rates of bile acids and biliary lipid secretion in...
Hamzeh et al., "Characteriza- tion of CCL20 secretion by human epithelial vaginal cells: involvement in Langerhans cell precursor attraction," Journal of Leukocyte Biology, vol. 78, no. 1, pp. 158-166, 2005.Cremel M, Berlier W, Hamzeh H, Cognasse F, Lawrence P, Ge...
Roger,A,Davis - 《Biochimica Et Biophysica Acta Molecular & Cell Biology of Lipids》 被引量: 368发表: 1999年 Cell and molecular biology of the assembly and secretion of apolipoprotein B-containing lipoproteins by the liver 1999. Cell and molecular biology of the assembly and secretion of apolipo...
Ionized calcium ([Ca2+]) is present in milk at concentrations around 3 mM, a concentration that drives the formation of complexes with citrate, phosphate, and casein, thereby generating compounds that carry the major portion of calcium in milk. In humans and cows, where it has been studied,...
Urticating hairs are used for strengthening and protecting cocoons and represent another source of contact for humans. Lasiocampid larvae of only a few North American species reportedly possess urticating hairs. These include the eastern tent caterpillar (Malacosoma americanum), commonly found on apple...
- 《Stress-the International Journal on the Biology of Stress》 被引量: 121发表: 1999年 Racial Variation in Sex Steroid Hormones and the Insulin-Like Growth Factor Axis in Umbilical Cord Blood of Male Neonates Background: To address whether umbilical cord blood concentrations of sex steroid ...
T1SS offer a very interesting area of application for antigen production and antigen delivery in the form of live vaccines. Attenuated live vaccines secreting a specific antigen are highly effective in the immunization of animals and humans, because secreted antigens are accessible to the host ...