相关实验视频
Updated: Jul 11, 2025

07:25
Assessing Murine Resistance Artery Function Using Pressure Myography
Published on: June 7, 2013
22.2K
在高血压妊娠中,是否应该针对非正规的氧化生成途径?
1Maternal and Fetal Health Research Centre, Division of Developmental Biology & Medicine, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK.
British journal of pharmacology
|November 3, 2023
概括
酸盐食补充剂可能提供一种新的方法来管理怀孕期间的高血压. 本综述探讨了它在孕妇中增加氧化 (NO) 生物可用性和降低血压的潜力.
科学领域:
- 产科和妇科 产科和妇科
- 心血管研究研究心血管研究
- 营养科学 营养科学
背景情况:
- 妊娠高血压影响全球约10%的怀孕,对母亲和胎儿的健康构成重大风险.
- 目前在怀孕期间管理高血压的治疗选择有限,需要探索新的治疗策略.
- 在非怀孕的个体中,酸盐食补充剂有望改善氧化 (NO) 的生物可用性和降低血压.
研究的目的:
- 审查现有的临床前和临床证据关于酸盐补充剂在妊娠中高血压的疗效.
- 评估酸盐-酸盐-NO通路在管理妊娠引起的高血压方面的潜力.
- 确定知识差距,并建议未来的研究方向,以补充酸盐在孕妇群体.
主要方法:
- 临床前 (动物) 和临床 (人类) 研究的系统审查.
- 包含非怀孕人口的数据,以支持机理学理解,如适用.
- 对研究饮食中酸盐来源及其对血压和NO代谢的影响的研究分析.
主要成果:
- 有证据表明,饮食中酸盐补充剂可以增强氧化 (NO) 的产生.
- 初步数据表明,酸盐补充剂在孕妇中可能有降血压的作用.
- 需要进一步的研究来确定不同孕妇群体的安全性和有效性.
结论:
- 酸盐食补充剂是一个有希望的,但尚未研究的,在怀孕期间高血压的治疗途径.
- 非正规的NO通路为血压调节提供了一个潜在的机制.
- 精心设计的临床试验对于验证这些发现和指导临床应用至关重要.
相关概念视频
Antihypertensive Drugs: Vasodilators
540
Vasodilators, primarily affecting the smooth muscles within arterial and venous walls, are commonly used for hypertension treatment. Medications such as minoxidil and hydralazine primarily target arteries and arterioles, while sodium nitroprusside acts on arterioles and venules. Minoxidil, functioning as a prodrug, is metabolized by hepatic sulfotransferase into its active form, minoxidil sulfate, after oral administration. This metabolite binds to the sulfonylurea receptor (SUR) component of...
540
Nitric Oxide Signaling Pathway
5.0K
Nitric oxide (NO), an inorganic gas, acts as a potent second messenger in most animal and plant tissues. NO diffuses out of the cells that produce it and enters the neighboring cells to generate a downstream response. NO synthase (NOS) catalyzes NO production by the deamination of the amino acid arginine. There are three isoforms of NOS. Endothelial cells have endothelial NOS (eNOS), nerve and muscle cells have neuronal NOS (nNOS), and macrophages produce inducible NOS (iNOS) upon exposure...
5.0K
Treatment for Pulmonary Arterial Hypertension: Endothelin Receptor Antagonists
172
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...
ETs are synthesized through a complex sequence of enzymatic steps, primarily involving an enzyme referred to as endothelin-converting enzyme...
172
Adrenergic Antagonists: ɑ and β-Receptor Blockers
493
Third-generation β-blockers, such as labetalol and carvedilol, represent a significant advancement in managing cardiovascular conditions. Unlike conventional β-blockers, which can induce peripheral vasoconstriction, third-generation drugs block α1 adrenoceptors. This promotes vasodilation through several mechanisms, such as increased nitric oxide production, inhibition of calcium ion entry, opening of potassium ion channels, and antioxidant action. Labetalol, for instance, is...
493
Antihypertensive Drugs: Direct Renin Inhibitors
648
The renin-angiotensin-aldosterone system (RAAS) is an intricate physiological pathway involving numerous enzymes and hormones, including renin, angiotensin-converting enzyme (ACE), angiotensin I and II, and aldosterone. Imbalances within this system increase the production of angiotensin II and aldosterone. Increased angiotensin II levels promote vasoconstriction and blood pressure elevation. Concurrently, higher aldosterone levels stimulate sodium and water reabsorption in the kidneys,...
648
Hormonal Regulation
33.2K
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.
33.2K

