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心脏血管原生失衡导致周边心肌病变
Ian S Patten1, Sarosh Rana, Sajid Shahul
1Cardiovascular Institute, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, Massachusetts 02115, USA.
Nature
|May 19, 2012
概括
产前心肌病 (PPCM) 与血管新生失衡有关,特别是在孕前中. 针对这种不平衡的疗法可以拯救PPCM,建议它.
科学领域:
- 心血管生物学 心血管生物学
- 生殖医学 生殖医学
- 分子医学是分子医学.
背景情况:
- 产前心肌病 (PPCM) 是一种严重的心脏病,影响到孕妇.
- 它的病因和与子宫前的关联是不太了解的.
- 在先兆子和多胎妊娠中,PPCM风险较高.
研究的目的:
- 为了研究血管新生失衡在周围心肌病症中的作用.
- 探索PPCM,孕前和抗血管性因素之间的联系.
- 确定PPCM的潜在治疗点.
主要方法:
- 利用缺乏心脏PGC-1α的小鼠模型研究PPCM发育.
- 用于评估救援效果的亲血管性疗法.
- 在小鼠和人类血样本中测量了可溶性FLT1 (sFLT1) 的循环水平.
- 诱导性心脏功能障碍使用外源性sFLT1在野生类型和PGC-1α缺乏的小鼠.
主要成果:
- 缺少心脏PGC-1α的小鼠患有严重的PPCM,并通过亲血管生成疗法得到救助.
- 像sFLT1这样的VEGF抑制剂的胎盘分泌量增加与PPCM有关,特别是在妊娠前和多胎妊娠中.
- 升高的sFLT1水平与人类的亚临床心脏功能障碍相关,并在小鼠中引起心脏功能障碍.
- 人类PPCM患者的血显示出明显更高的sFLT1水平.
结论:
- 产周心肌病主要是一种血管疾病,主要是由产周期间过度的抗血管性信号驱动的.
- 妊娠前和多胎是由于加剧的抗血管原生环境而造成的重大风险因素.
- 针对血管新生失衡为PPCM提供了一个有前途的治疗策略.
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