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[多普前列素对肾上腺素能影响所致大鼠心脏脂肪酸代谢紊乱的作用]

[Effect of doprostone on fatty acid metabolism disturbances in the rat heart caused by adrenergic influences].

作者信息

Simkhovich B Z, Meĭrena D V, Khagi Kh B, Freĭmanis Ia F

出版信息

Farmakol Toksikol. 1989 Jul-Aug;52(4):24-7.

PMID:2806522
Abstract

Administration of isoproterenol results in a marked increase (by 4.85 times) of the blood serum concentration of free fatty acids. In the heart there was found a four-fold increase of the concentration of long-chain acylcarnitine against the background of a reduction of free carnitine content. A preliminary administration of doprostone in a dose of 50 micrograms/kg intraperitoneally for 10 days completely prevents isoproterenol-induced increase of the serum concentration of free fatty acids and the heart concentration of long-chain acylcarnitine. Doprostone contributes also to preservation of the myocardium content of free carnitine under conditions of adrenergic influences. Correction of fatty acid metabolism under the influence of doprostone indicates the possibility of the heart protection against lesions caused by fatty acids and their detergent metabolites (long-chain acyl-CoA and acylcarnitine) during adrenergic and ischemic influences.

摘要

给予异丙肾上腺素会导致血清游离脂肪酸浓度显著升高(升高4.85倍)。在心脏中,发现长链酰基肉碱浓度增加了四倍,而游离肉碱含量减少。以50微克/千克的剂量腹腔注射多普前列素,连续给药10天,可完全防止异丙肾上腺素引起的血清游离脂肪酸浓度升高以及心脏长链酰基肉碱浓度升高。在肾上腺素能影响的情况下,多普前列素还有助于维持心肌中游离肉碱的含量。多普前列素对脂肪酸代谢的调节表明,在肾上腺素能和缺血影响期间,心脏有可能免受脂肪酸及其去污剂代谢产物(长链酰基辅酶A和酰基肉碱)引起的损伤。

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