corticorelin ovine 化學(xué)特性,用途語,生産方法
使用
Diagnostic aid(adrenocortical insufficiency); diagnostic aid (Cushing’s
syndrome); hormone (corticotropin-releasing).
生物學(xué)の機(jī)能
The primary function of corticotropin-releasing factor (CRF), a hypothalamic 41-peptide, is the
regulation of the release of adrenocorticotropin hormone (ACTH) from the anterior pituitary
gland, which then stimulates the release of hydrocortisone from the adrenal gland. The human
peptide (hCRF) and the similar sequence found in sheep (oCRF) have been prepared by
synthesis. The ovine form of the hormone, however, has replaced the human form because of its
longer half-life and greater potency; hCRF is no longer commercially available.
Usually, ACTH deficiency in humans is associated with a pituitary disorder rather than with a
deficiency of CRF, and oCRF can be used to distinguish between pituitary hypersecretion of
ACTH (Cushing's disease) and ectopic ACTH secretion, both of which are conditions that cause
a hypersecretion of hydrocortisone. In the case of ectopic ACTH secretion, the administration of
oCRF will elicit little to no response in the production of ACTH and hydrocortisone. Therefore,
synthetic oCRF trifluoroacetate salt is marketed as a diagnostic agent for patients with ACTH dependent Cushing's syndrome.
corticorelin ovine 上流と下流の製品情報(bào)
原材料
準(zhǔn)備製品