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酒精中毒影响下胰腺功能状态及组织氧化过程的变化

[Change in the functional state and tissue oxidative processes of the pancreas under the influence of alcoholic intoxication].

作者信息

Shishov V I

出版信息

Farmakol Toksikol. 1977 Sep-Oct;40(5):613-6.

PMID:562776
Abstract

Experiments conducted with albino rats demonstrated that intragastrically introduced ethyl alcohol in a dose of 3 g/kg intensifies the external-secretary function of the pancreas and also increases the activity of the pancreatic juice amylase in the blood, this activity continuing to be elevated 24 hours after a single introduction of the alcohol. The action of the latter reduces the oxygen tension and the redox potential in the glandular tissue, lessens the activity of NAD-dependent dehydrogenases occurring against the background of the succinate-cytochrome-c-oxydoreductase complex activity, which bears evidence to the development of "hypoxy-like" shifts in the metabolic stade of the pancreas. The author concludes that the toxic action of alcohol on the pancreas is associated with disturbances in the redox processes and with the damage of cellular membranes.

摘要

对白化大鼠进行的实验表明,以3克/千克的剂量经胃内引入乙醇会增强胰腺的外分泌功能,还会提高血液中胰液淀粉酶的活性,在单次引入酒精后24小时,这种活性仍会持续升高。乙醇的作用会降低腺组织中的氧张力和氧化还原电位,降低在琥珀酸 - 细胞色素c - 氧化还原酶复合物活性背景下发生的NAD依赖性脱氢酶的活性,这证明胰腺代谢阶段出现了“类缺氧”变化。作者得出结论,酒精对胰腺的毒性作用与氧化还原过程的紊乱以及细胞膜的损伤有关。

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