Postnatal changes in cardiovascular regulation during hypoxia.

Postnatal changes in cardiovascular regulation during hypoxia.
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缺氧期间心血管调节的产后变化。

DOI:
10.1007/0-306-46825-5_52
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发表时间:
2000
影响因子:
--
通讯作者:
Gootman,N
Gootman,N
中科院分区:
医学4区
文献类型:
--
作者:
Gootman,PM;Gootman,N

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缺氧仍然被认为是婴儿猝死综合征的可能诱因(Saugstadt & Rogrum, 1995)。利用发育中的婴儿猪模型,我们进行了多种类型的实验,揭示了心血管控制改变在SIDS病因学中的可能作用(Gootman等人,1996)。短期缺氧导致与年龄相关的脑干髓质刺激的心血管反应下降(Gootman et al., 1981),心率和外周血管阻力增加(Gootman et al., 1990),颈和内脏交感神经输出放电增加(Hundley & Gootman, 1999)。为了提供心血管数据,为将来检查脑干神经元中缺氧诱导的早期基因(c-fos)激活提供基础(cf. Sica et al., 1998,1999),本文采用了长时间暴露于缺氧的方法。
Hypoxia continues to be implicated as a possible trigger for the Sudden Infant Death Syndrome (Saugstadt & Rogrum, 1995). Using a swine model of the developing infant, we have conducted many types of experiments that reveal the possible role of altered cardiovascular control in the etiology of SIDS (Gootman et al., 1996). Short-term hypoxia leads to age-related depression of cardiovascular responses to brainstem medullary stimulation (Gootman et al., 1981), increases in heart rate and peripheral vascular resistances (Gootman et al., 1990), and increases in efferent cervical and splanchnic sympathetic discharge (Hundley & Gootman, 1999). In order to provide cardiovascular data that would be the basis for future examination of hypoxia-induced early gene (c-fos) activation in brainstem neurons (cf. Sica et al., 1998, 1999), prolonged exposure to hypoxia was employed in this paper.
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