72 下列何者不是雄性素(androgen)過度刺激所引起之可能副作用?
Priapism Polycythemia Prostate enlargement Weight loss
weight loss
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73 下列何種因子不會導致內生性胰島素(endogenous insulin)的分泌?
Glucose Glucagon Somatostatin Gastrin
somatostatin
Anterior pituitary
In the anterior pituitary gland, the effects of somatostatin are:
- Inhibit the release of growth hormone (GH)[3] (thus opposing the effects of Growth Hormone-Releasing Hormone (GHRH))
- Inhibit the release of thyroid-stimulating hormone (TSH)
- It is induced by low pH.
- Secreted by "D" cells and alpha cells in Islet of Langerhans.
- Inhibit adenylyl cyclase in parietal cells.
[edit]Gastrointestinal system
- Somatostatin is homologous with cortistatin (see somatostatin family) and suppresses the release of gastrointestinal hormones
- Decrease rate of gastric emptying, and reduces smooth muscle contractions and blood flow within the intestine[3]
- Suppresses the release of pancreatic hormones
- Suppresses the exocrine secretory action of pancreas.
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