まとめ
ペプチドホルモンであるソマトスタチンは,犬の臓分泌を著しく抑制する. このペプチドホルモンは,刺激された pancreas 機能と非刺激された pancreas 機能の両方を急速に低下させ,潜在的な治療的洞察を提供します.
科学分野:
- 胃腸内科 胃腸内科
- エンドクリノロジー エンドクリノロジー
- 生理学 生理学とは
背景:
- ソマトスタチンは,さまざまな生理学的役割を持つペプチドホルモンです.
- 臓の外分泌の調節は,消化にとって極めて重要です.
研究 の 目的:
- 意識のある犬の臓内分泌にソマトスタチンの影響を調査する.
主な方法:
- ソマトスタチンを素食で意識のある犬に投与する.
- セクレチン放出量,臓流量,炭酸水素,タンパク質分泌量の測定.
主要な成果:
- ソマトスタチンは塩酸刺激によるセクレチン放出を完全に抑制した.
- 部分的に臓の流れ率,二酸化炭素,タンパク質の分泌を抑制する.
- 刺激されていない臓の外分分泌の減少は,基礎分泌に影響を及ぼさず.
結論:
- ソマトスタチンは,臓の外分泌分泌の強力な阻害剤です.
- 効果は迅速かつ可逆であり,重要な生理学的役割を果たしていることを示唆しています.
関連する概念動画
Hormonal Regulation
Hormones regulate a significant portion of digestion through activation of the neuroendocrine system. The neuroendocrine system of digestion contains many different hormones all with multiple functions that are both, directly and indirectly, involved in digestion.
What is the Endocrine System?
The endocrine system sends hormones—chemical signals—through the bloodstream to target cells—the cells the hormones selectively affect. These signals are produced in endocrine cells, secreted into the extracellular fluid, and then diffuse into the blood. Eventually, they diffuse out of the blood and bind to target cells which have specialized receptors to recognize the hormones.
Hormonal Regulation
The renin-aldosterone system is an endocrine system which guides the renal absorption of water and electrolytes, thus managing blood pressure and osmoregulation. Activation of the system begins in the kidneys with a small cluster of cells adjacent to the afferent and efferent blood vessels of the renal corpuscle. As the nephrons are filtering blood, juxtaglomerular cells monitor blood pressure. If they detect a decrease in pressure, they release the hormone renin into the bloodstream.
Antihypertensive Drugs: Thiazide-Class Diuretics
Thiazide diuretics are sulfonamide derivatives featuring a benzothiadiazine ring system in their molecular structure. Based on this structure, thiazide diuretics can be categorized into two groups: thiazide-type and thiazide-like diuretics. Thiazide-type diuretics, including hydrochlorothiazide and chlorothiazide, consist of a benzothiadiazine backbone with an attached sulfonamide group. Thiazide-like diuretics, such as chlorthalidone and indapamide, lack the thiazide ring but demonstrate...
Regulation of the Digestive System
Digestive activity regulation hinges on three primary components. Activation is prompted by a multitude of mechanical and chemical indicators, primarily detected by receptors within the stomach and intestines' walls. These receptors predominantly respond to factors such as mechanical stretching of the organ walls, changes in pH and osmolarity, and the presence of digesting materials and their by-products.
The effectors in this regulation system are glands and smooth muscles. Activation of these...
The effectors in this regulation system are glands and smooth muscles. Activation of these...
Dipeptidyl Peptidase 4 Inhibitors
Dipeptidyl peptidase 4 (DPP-4) is a serine protease widely distributed in the body. It's involved in the inactivation of GLP-1 and GIP hormones, which are crucial for insulin regulation. DPP-4 inhibitors, such as sitagliptin (Januvia), saxagliptin (Onglyza), linagliptin (Tradjenta), alogliptin (Nesina), and vildagliptin (Galvus), help increase the proportion of active GLP-1, enhancing insulin secretion. These inhibitors work by competitively binding to DPP-4. This binding causes a significant...


