Biochemistry of late effects in rat lung after hemithoracic irradiation.

G B Gerber, A M Dancewicz, B Bessemans, G Casale
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引用次数: 15

Abstract

The right hemithorax of rats was exposed to 1 kR of roentgen rays, the animals were killed at different times, and various physiologic and biochemic parameters (DNA, protein, collagen, sialic acid, lysosomal enzymes, fibrinolytic activity, peroxides and blood flow ratio between irradiated and non irradiated lung) were determined from 1 day until 11 months after irradiation. A decrease in relative blood flow was observed from 2 weeks until 11 months, a decrease in phospholipids from one to 3 months and a decrease in fibrinolytic activity from 1 day to 11 months after irradiation. At several times a decrease in sialic acid and cathepsin D was also noted. The changes are discussed with respect to the pathogenetic mechanisms of late lung damage.

半胸照射对大鼠肺后期效应的生物化学研究。
将大鼠右半胸暴露于1kr的x射线下,在不同时间处死,测定辐照后第1天至11个月的各项生理生化指标(DNA、蛋白质、胶原蛋白、唾液酸、溶酶体酶、纤溶酶活性、过氧化物及辐照后与未辐照后肺血流量比)。辐照后2周至11个月观察到相对血流量减少,1至3个月观察到磷脂减少,1天至11个月观察到纤溶活性降低。在几次唾液酸和组织蛋白酶D的减少也被注意到。这些变化讨论了晚期肺损伤的发病机制。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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