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Updated: Jan 9, 2026

Regulation of Hormone Secretion

Regulation of Hormone Secretion

放射性崩壊: 核心臓学における放射性同位体不足への課題と解決策

Venkatesh L Murthy¹, Leslee J Shaw², Brahmajee K Nallamothu²

¹From Division of Cardiovascular Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor (V.L.M., B.K.N.); Division of Nuclear Medicine and Molecular Imaging, Department of Radiology, University of Michigan, Ann Arbor (V.L.M.); Emory Clinical Cardiovascular Research Institute, Emory University School of Medicine, Atlanta, GA (L.J.S.); Institute for Healthcare Policy and Innovation, University of Michigan, Ann Arbor (B.K.N.); and Center for Clinical Management Research, Ann Arbor VA Medical Center, MI (B.K.N.). vlmurthy@med.umich.edu.

|March 8, 2017

まとめ

No abstract available in PubMed .

キーワード:

心臓ゲート式単光子放射コンピュータ支援トモグラフィー原子炉放射性同位体テクネチウム

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Hormonal Regulation of Digestion

Hormonal Regulation of Digestion

Overview of Secretory Vesicles

Overview of Secretory Vesicles

関連する概念動画

Regulation of Hormone Secretion

Regulation of Hormone Secretion

Regulation of hormone secretion is a finely tuned orchestration driven by various types of stimuli, encompassing neural, humoral, and hormonal signals. Environmental cues instigate neural stimuli, where action potentials traverse nerve fibers to reach their designated targets. An illustrative scenario is the body's response to stress, wherein the sympathetic nervous system releases epinephrine from the adrenal glands, inducing the well-known 'fight or flight' reaction.
Humoral...

Hormonal Regulation

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.

Overview of Secretory Vesicles

Overview of Secretory Vesicles

Secretory vesicles, also known as dense core vesicles (DCVs), are membrane-bound vesicles that transport secretory proteins, such as hormones or neurotransmitters. Regulated secretory vesicles transport proteins from the trans-Golgi network to the exterior of the cell. Proteins present in regulated secretory vesicles are required to be rapidly exocytosed in large amounts upon a specific stimulus.
Various proteins regulate the aggregation of molecules inside the secretory vesicles. Chromogranins...

Insulin Secretory Vesicles

Insulin Secretory Vesicles

Insulin secretory vesicles release insulin to stimulate blood glucose uptake and regulate carbohydrate metabolism. When the blood glucose levels increase, glucose enters the pancreatic β-islet cells through glucose transporters. Once inside, glucose is metabolized through glycolysis, the citric acid cycle, and the electron transport chain, producing ATP. This increase in ATP concentration closes ATP-sensitive potassium channels, leading to depolarization of the membrane and the opening of...

Glucose Homeostasis: Pancreatic Islets and Insulin Secretion

Glucose Homeostasis: Pancreatic Islets and Insulin Secretion

The pancreatic islets comprising only 1%-2% of the volume are highly vascularized and innervated mini-organs. They contain five endocrine cell types, including β cells that secrete insulin, which is synthesized as a single polypeptide chain, preproinsulin, processed to proinsulin, and finally to insulin and C-peptide. This process is complex and regulated, involving the Golgi complex, the endoplasmic reticulum, and the secretory granules of the β cell.
Insulin and C-peptide are...

Feedback Inhibition

Feedback Inhibition

Biochemical reactions are occurring constantly in cells, converting starting substances to different products, usually with the help of enzymes that speed the reactions. Without enzymes, it would take far too long for most reactions to occur to be useful to the cell!