Search results
Results From The WOW.Com Content Network
Once it is produced, pancreatic polypeptide is shown to be a 36 amino acid long peptide that can be sent out to different areas within the pancreas or organism. [6] Pancreatic polypeptide cells are most active and secrete more pancreatic polypeptide after a meal with high protein, fasting, physical activity, and acute hypoglycemia.
Pancreatic polypeptide regulates pancreatic secretion activities by both endocrine and exocrine tissues. It also affects hepatic glycogen levels and gastrointestinal secretions. Its secretion in humans is increased after a protein meal, fasting , exercise, and acute hypoglycaemia , and is decreased by somatostatin and intravenous glucose .
Pancreatic polypeptide: Pancreas: Inhibits pancreatic and biliary secretion Peptide YY: Colon: Inhibits food intake Somatostatin: Stomach, pancreas: Inhibits secretion and action of many hormones Substance P: Enteric nerves: Unclear Trefoil peptides: Stomach, intestine: Mucosal protection and repair
The endocrine cells constitute the beta cells which make insulin, alpha cells which secrete glucagon, delta cells which secrete somatostatin and the PP-cells which secrete pancreatic polypeptide. [3] Pancreatic progenitor cells have been shown to arise from cells originating from the developing foregut during mammalian development.
release breast milk Stimulates contraction of cervix and vagina. Involved in orgasm, trust between people, [2] and circadian homeostasis (body temperature, activity level, wakefulness). [3] 50 Pancreatic polypeptide: Peptide: Pancreas: PP cells: pancreatic polypeptide receptor 1: Self-regulation of pancreatic secretions (endocrine and exocrine).
Peptide YY 3-36 (PYY) is a linear polypeptide consisting of 34 amino acids with structural homology to NPY and pancreatic polypeptide. The PP-fold motif is found throughout this family and relates to the 3D structure. The PP-fold is formed through the incorporation of certain residues which are predominately Pro2, Pro5, Pro8, Gly9, Tyr20 and Tyr27.
White fat cells secrete many proteins acting as adipokines such as resistin, adiponectin, leptin and apelin. An average human adult has 30 billion fat cells with a weight of 30 lbs or 13.5 kg. If a child or adolescent gains sufficient excess weight, fat cells may increase in absolute number until age twenty-four. [3]
Bilirubin is a waste product of the breakdown of hemoglobin. The cholesterol present is secreted with the feces. The bile salt component is an active non-enzymatic substance that facilitates fat absorption by helping it to form an emulsion with water due to its amphoteric nature.