Group I pepsinogens are secreted by the chief cells and the mucous neck cells of the gastric fundus whilst Group II pepsinogens are also secreted by the pyloric glands of the antrum and Brunner's glands of the proximal duodenum.出版时间: 1995/01/01 ISBN: 978-0-7923-8862-3 ...
circulation. Pepsinogen consists of a single polypeptide chain of 375 amino acids with an average molecular weight of 42 kD. PG I (isoenzyme 1-5) is secreted mainly by chief cells in the fundic mucosa, whereas PG II (isoenzyme 6-7) is secreted by the pyloric glands and the proximal ...
PG I is secreted by fundic glands, and PG II is secreted by fundic glands, cardia glands, pyloric glands, and Brunner's glands. In the process of fundic gland mucosal atrophy, the main cells secreting PG I decrease, and the pyloric gland cells increase. The PG I/PG II ratio decrease....
PCG is secreted by the stomach’s chief cells and is stable under physiological pH, but gets activated below pH 5 due to the conformational changes and disruption of nonbonding interactions leading to exposure of active site. The enzyme is expressed after 23 weeks of gestational age of the fet...
Pepsinogen secreted was measured and expressed as % of total. The basal secretion averaged 3.5%/h. Bethanechol (25 渭M), dibutyryl-cAMP (10 mM), ionophore A23187 (30 渭M) and 3-isobutyl-1-methylxanthine (0.1 mM) increased the secretion to 8.7, 7.4, 7.1 and 6.8%, respectively. The ...
These hormones are produced by the enteroendocrine cells present in the mucosal lining of the digestive tract. Answer and Explanation: The correct answer is option (c) acidic chyme. Secretin is a gastrointestinal hormone secreted by the duodenal enter...
Pepsinogens (PG) originating from gastric mucosa can be classified into two immunochemically distinct groups: pepsinogen I (PG I) and PG II5, which are mostly secreted into the gastric lumen and nearly 1% of them are leaked into the blood circulation. Serum PG levels reflect the morphological...
Which of the following is secreted by parietal cells? A. Amylase B. Pepsinogen C. HCl (hydrochloric acid) D. Lipase E. GastrinWhich of the following is secreted by acinar cells? A. Amylase B. Pepsinogen C. HCl (hydrochloric acid) D. Lipase E...
What is the role of intrinsic factor secreted by the cells of gastric glands? View Solution Damage to which cells of gastric glands can cause anemia? View Solution Which is true about gastric glands ? View Solution Apocrine secretion of gland means View Solution Apocrine secretion of gland mean...
and PG II is secreted by fundic glands, cardia glands, pyloric glands, and Brunner's glands. In the process of fundic gland mucosal atrophy, the main cells secreting PG I decrease, and the pyloric gland cells increase. The PG I/PG II ratio decrease. Therefore, PG I/PG II ratio can b...