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首页> 外文期刊>Cell and Tissue Research >Cortical adrenal mitochondrial morphology changes in functional state: new insights.
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Cortical adrenal mitochondrial morphology changes in functional state: new insights.

机译:皮质肾上腺线粒体形态功能状态的变化:新见解。

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摘要

We compared changes in the morphology of mitochondrial cristae with those in the blood and adrenal content of steroid hormones after the stimulation or inhibition of steroidogenesis. Rats were treated with adrenocorticotrophic hormone or angiotensin II to elicit steroidogenesis and with dexamethasone to inhibit it. Blood and adrenal glands were collected after several time intervals for measurements of steroids and their main intermediates. In the zona fasciculata, mitochondrial ultrastructure was investigated by high resolution scanning electron microscopy. We found that the morphometric data correlated well with the measurements of hyper- or hypo-activity of steroidogenesis over short periods of time (4 h) but not over longer observation times. A peculiar finding was that, contrary to previous reports, 11-deoxycortisol was present in adult rat adrenal tissue.
机译:我们比较了刺激或抑制类固醇生成后线粒体cr的形态变化与血液和类固醇激素的肾上腺含量的变化。用肾上腺皮质营养激素或血管紧张素II治疗大鼠以引发类固醇生成,并用地塞米松对其进行抑制。在几个时间间隔后收集血液和肾上腺,以测量类固醇及其主要中间体。在带状带中,线粒体的超微结构已通过高分辨率扫描电子显微镜进行了研究。我们发现,形态测量数据与短时间内(4小时)内类固醇生成的过高或过低活性的测量结果具有良好的相关性,但与更长的观察时间却没有相关性。一个奇特的发现是,与以前的报道相反,成年大鼠肾上腺组织中存在11-脱氧皮质醇。

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