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Transducer Mechanism: Enzyme-Linked Receptors01:27

Transducer Mechanism: Enzyme-Linked Receptors

Enzyme-linked receptors are cell-surface receptors acting as an enzyme or associating with an enzyme intracellularly. They make excellent drug targets. Drugs can bind to the extracellular ligand-binding domain or directly affect their enzymatic domain and alter their activity.
Major types that are helpful drug targets include:
Adrenergic Receptors: ɑ Subtype01:31

Adrenergic Receptors: ɑ Subtype

Adrenoceptors are classified into α and ꞵ classes based on their potencies to catecholamine agonists. α-adrenoceptors show the following order of catecholamine potency:
Adrenaline ≥ Noradrenaline >> Isoprenaline
α-adrenoceptors are further divided into α1 and α2-adrenoceptors.
α1-Adrenoceptors: These receptors are located postsynaptically on the effector organs and cause constriction of smooth muscle mediated by activation of phospholipase C—inositol-1,4,5-trisphosphate...
Antihypertensive Drugs: Angiotensin-Converting Enzyme Inhibitors01:30

Antihypertensive Drugs: Angiotensin-Converting Enzyme Inhibitors

Angiotensin-converting enzyme (ACE), a vital component of the renin-angiotensin-aldosterone system, is abundant in lung endothelial cells. ACE converts the inactive decapeptide, angiotensin I, into the active octapeptide, angiotensin II. This potent vasoconstrictor narrows blood vessels, increasing resistance to blood flow and elevating blood pressure. Angiotensin II also stimulates aldosterone production, encouraging kidney cells to reabsorb more sodium and water from urine, thereby increasing...
Treatment for Pulmonary Arterial Hypertension: Endothelin Receptor Antagonists01:18

Treatment for Pulmonary Arterial Hypertension: Endothelin Receptor Antagonists

Endothelins (ETs) are potent vasoactive peptides critical in the human body's various physiological and pathological processes. One of the most promising therapeutic strategies for treating pulmonary arterial hypertension (PAH) involves counteracting the effects of these endothelins using a class of drugs known as endothelin receptor antagonists.
ETs are synthesized through a complex sequence of enzymatic steps, primarily involving an enzyme referred to as endothelin-converting enzyme (ECE). Of...
Pancreatic Juice and Secretion01:26

Pancreatic Juice and Secretion

Pancreatic juice is a clear fluid produced by the pancreas, containing water, salts, sodium bicarbonate, and enzymes vital for digestion in the small intestine. It helps break down large molecules, facilitating nutrient absorption.
When acidic chyme from the stomach enters the duodenum, it triggers the release of secretin, a hormone that prompts pancreatic juice secretion. After a fatty meal, cholecystokinin, another hormone, stimulates gallbladder contraction and enhances enzyme-rich...
Glucagon-like Receptor Agonists01:24

Glucagon-like Receptor Agonists

Incretins include glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP), which stimulate insulin secretion post-meals. In type 2 diabetes, GIP's efficacy is reduced, making GLP-1 a viable drug target. GIP originates from preproGIP.
GLP-1, when administered in high doses intravenously, triggers insulin secretion, inhibits glucagon release, slows gastric emptying, reduces food intake, and restores normal insulin secretion. However, its rapid inactivation by the...

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Updated: Jun 26, 2026

Optimized Protocol for the Extraction of Proteins from the Human Mitral Valve
09:13

Optimized Protocol for the Extraction of Proteins from the Human Mitral Valve

Published on: June 14, 2017

プロスタグランディンは,

C B Clayman

    JAMA
    |August 25, 1975
    PubMed
    まとめ
    この要約は機械生成です。

    ディノプロスト・トロメタミン (Prostin F2 Alpha) は,塩水よりも優れている,第二 trimesterの有効な中絶剤です. 副作用が発生しますが,このプロスタグランディン治療の結果を改善する経験があります.

    さらに関連する動画

    Estrogen-Like Effect of Bazi Bushen Capsule in Ovariectomized Rats
    08:56

    Estrogen-Like Effect of Bazi Bushen Capsule in Ovariectomized Rats

    Published on: April 7, 2023

    Characterizing Modulators of Protease-Activated Receptors with a Calcium Mobilization Assay Using a Plate Reader
    07:13

    Characterizing Modulators of Protease-Activated Receptors with a Calcium Mobilization Assay Using a Plate Reader

    Published on: May 24, 2024

    関連する実験動画

    Last Updated: Jun 26, 2026

    Optimized Protocol for the Extraction of Proteins from the Human Mitral Valve
    09:13

    Optimized Protocol for the Extraction of Proteins from the Human Mitral Valve

    Published on: June 14, 2017

    Estrogen-Like Effect of Bazi Bushen Capsule in Ovariectomized Rats
    08:56

    Estrogen-Like Effect of Bazi Bushen Capsule in Ovariectomized Rats

    Published on: April 7, 2023

    Characterizing Modulators of Protease-Activated Receptors with a Calcium Mobilization Assay Using a Plate Reader
    07:13

    Characterizing Modulators of Protease-Activated Receptors with a Calcium Mobilization Assay Using a Plate Reader

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    科学分野:

    • 産婦人科と産婦人科を担当しています.
    • 薬理学 薬理学とは

    背景:

    • プロスタグランジンは,ダイノプロスト・トロメタミンと同様に,その自然な役割を超えて,多様な臨床応用があります.
    • ディノプロスト・トロメタミン (Prostin F2 Alpha) は,第2期妊娠中の中絶剤として臨床的に使用された最初のプロスタグランジンです.

    研究 の 目的:

    • 第2四半期中絶におけるディノプロスト・トロメタミンの有効性と安全性を評価する.
    • ディノプロスト トロメタミンを高血圧塩水と比較して,内インスティレーションを行う.

    主な方法:

    • アメリカ合衆国におけるディノプロスト・トロメタミンの胎内内投与.
    • 患者の反応と副作用の臨床観察.

    主要な成果:

    • ディノプロスト・トロメタミンは効果があり,比較的安全で,高圧塩水よりも性能が優れています.
    • 副作用には,アレルギー反応,高血圧,支氣管の,胃腸の不調,子宮の過刺激が含まれます.
    • 子宮の過刺激は,子宮頸部破裂,子宮下部セグメント破裂,胎盤保持,出血につながる可能性があります.

    結論:

    • ディノプロスト・トロメタミンは,高血圧塩水と比較して,第2 trimester 中絶のための優れた選択肢です.
    • ディノプロスト・トロメタミン投与の改善された臨床経験により,治療効果が向上し,副作用が軽減されています.