首页> 美国政府科技报告 >Experiment K-6-13. Morphological and biochemical examination of heart tissue. Part 1: Effects of microgravity on the myocardial fine structure of rats flown on Cosmos 1887. Ultrastructure studies. Part 2: Cellular distribution of cyclic ampdependent protein kinase regulatory subunits in heart muscle of rats flown on Cosmos 1887
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Experiment K-6-13. Morphological and biochemical examination of heart tissue. Part 1: Effects of microgravity on the myocardial fine structure of rats flown on Cosmos 1887. Ultrastructure studies. Part 2: Cellular distribution of cyclic ampdependent protein kinase regulatory subunits in heart muscle of rats flown on Cosmos 1887

机译:实验K-6-13。心脏组织的形态学和生化检查。第1部分:微重力对Cosmos 1887上飞行的大鼠心肌细微结构的影响。超微结构研究。第2部分:在Cosmos 1887上飞行的大鼠心肌中环状独立蛋白激酶调节亚基的细胞分布

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The left ventricle of hearts from rats flown on the Cosmos 1887 biosatellite for 12.5 days was compared to the same tissue of synchronous and vivarium control animals maintained in a ground based laboratory. The volume density of the mitochondria in the myocardium of the space-flown animals was statistically less (p equal less than 0.01) than that of the synchronous or vivarium control rats. Exposure to microgravity resulted in a certain degree of myocardial degeneration manifested in mitochondrial changes and accumulation of myeloid bodies. Generalized myofibrillar edema was also observed.

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