探索C型天然尿素对于产前的治疗潜力
Bianca R Fato1,2, Natasha de Alwis1,2, Sally Beard1,2
1Therapeutics Discovery and Vascular Function in Pregnancy Group (B.R.F., N.d.A., S.B., N.K.B., N.J.H.), University of Melbourne, Heidelberg, Victoria, Australia.
在孕前症模型中,C型尿素 (CNP) 通过激活尿素受体-B的作用,有效地扩大了母亲的动脉. 这表明,CNP疗法可以减少妊娠前的血管收缩.
科学领域:
- 心血管生理学心血管生理学
- 生殖医学 生殖医学
- 药理学 药理学是指药理学的学科.
背景情况:
- 孕前是一个怀孕并发症,其特点是母亲的血管功能障碍.
- C型性尿素 (CNP) 通过性尿素受体B (NPR-B) 和C (NPR-C) 在血管恒温中发挥作用.
- 众所周知,CNP可以减轻非怀孕个体的血管功能障碍.
研究的目的:
- 为了研究CNP在母体动脉扩张的潜力,在ex vivo预先怀孕的模型中.
- 评估NPR-B和NPR-C在孕前中CNP介导的血管扩张中的作用.
主要方法:
- 从怀孕中采集了患有先兆子和正常血压对照的人类体内动脉.
- 量化了CNP,NPR-B和NPR-C的信使RNA (mRNA) 表达.
- 电线肌图被用来评估CNP对动脉扩张的影响,使用预先血清或内分泌素-1 (ET-1) 进行预先收缩.
- 用受体对抗剂来探索所涉及的信号通路.
主要成果:
- 在预先和正常压组之间没有观察到CNP,NPR-B或NPR-CmRNA表达的显著差异.
- 在孕前的模型中,CNP表现出强大的血管松作用,主要由NPR-B激活介导.
- 当NPR-B被对抗时,CNP的血管扩张作用会减弱.
- CNP没有显著降低ET-1诱导的血管收缩.
结论:
- 通过NPR-B增强CNP信号传递,为治疗妊娠前的全身血管收缩提供了潜在的治疗途径.
- CNP的血管扩张能力为治疗与妊娠前相关的血管并发症提供了希望.
更多相关视频
10:44A Plate-based Cytotoxicity Assay for the Assessment of Rat Placental Natural Killer Cell Cytolytic Function
Published on: June 2, 2019
12:02Human Primary Trophoblast Cell Culture Model to Study the Protective Effects of Melatonin Against Hypoxia/reoxygenation-induced Disruption
Published on: July 30, 2016
相关概念视频
Hormonal Regulation
Treatment for Pulmonary Arterial Hypertension: Endothelin Receptor Antagonists
ETs are synthesized through a complex sequence of enzymatic steps, primarily involving an enzyme referred to as endothelin-converting enzyme...
Blood Studies for Cardiovascular System II: CRP, Hcy, and Cardiac Natriuretic Peptide Markers
These markers indicate stress or strain on the heart muscle:
Natriuretic Peptides (BNP)
Cardiac myocytes produce these hormones in response to ventricular stretching...
Transducer Mechanism: Enzyme-Linked Receptors
Major types that are helpful drug targets include:
Adrenergic Antagonists: ɑ and β-Receptor Blockers
Heart Failure Drugs: Inhibitors of Renin-Angiotensin System
