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[急性致死性出血后心肌生物膜的再灌注损伤及其用肌肽的纠正]

[Reperfusion injury of myocardial biomembranes after acute fatal hemorrhage and their correction with carnosine].

作者信息

Rusakov V V, Dolgikh V T

出版信息

Biokhimiia. 1992 Sep;57(9):1393-7.

PMID:1467360
Abstract

Studies on inbred male rats revealed that ischemia associated with clinical death caused by haemorrhage with subsequent recirculation and reoxygenation during resuscitation led to an increase in enzyme activities in blood serum and perfusate passed through the coronary bed of isolated hearts, presumably due to impaired membrane integrity. Damage to cardiomyocyte membranes was caused by intensification of LPO concomitant with enhanced glycolysis and lactate accumulation in the cardiac muscle. Carnosine (25 mg/kg) injected simultaneously with recirculation and reoxygenation prevented membrane damage and created optimal conditions for the functioning of membrane enzymes.

摘要

对近交系雄性大鼠的研究表明,出血导致临床死亡相关的缺血,以及复苏过程中随后的再灌注和再氧合,会导致血清和通过离体心脏冠状动脉床的灌注液中酶活性增加,这可能是由于膜完整性受损所致。心肌细胞膜的损伤是由脂质过氧化增强伴心肌中糖酵解增强和乳酸积累引起的。在再灌注和再氧合同时注射肌肽(25毫克/千克)可防止膜损伤,并为膜酶的功能发挥创造最佳条件。

相似文献

1
[Reperfusion injury of myocardial biomembranes after acute fatal hemorrhage and their correction with carnosine].[急性致死性出血后心肌生物膜的再灌注损伤及其用肌肽的纠正]
Biokhimiia. 1992 Sep;57(9):1393-7.
2
[The membrane-protective effect of carnosine in the post-resuscitation period after acute lethal blood loss].[肌肽在急性致死性失血后复苏期的膜保护作用]
Vopr Med Khim. 1993 May-Jun;39(3):26-8.
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[The use of carnosine for reducing the post-resuscitation damage to the heart following acute fatal blood loss].
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[Effects of carnosine on systemic hemodynamics and myocardial metabolism in rats in the early postresuscitation period].[肌肽对复苏后早期大鼠全身血流动力学及心肌代谢的影响]
Biull Eksp Biol Med. 1992 Apr;113(4):358-60.
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[The effects of alpha-linolenic acid on the functioning of the isolated heart during acute myocardial ischemia/reperfusion].[α-亚麻酸对急性心肌缺血/再灌注期间离体心脏功能的影响]
Fiziol Zh (1994). 2006;52(5):12-20.
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Experimental conditions determine effects of ascorbic acid on reperfusion injury: comparison of tissue damage with hemodynamic parameters in rat isolated hearts.实验条件决定了抗坏血酸对再灌注损伤的影响:大鼠离体心脏组织损伤与血流动力学参数的比较
Methods Find Exp Clin Pharmacol. 1992 Jul-Aug;14(6):419-30.
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Aging increases ischemia-reperfusion injury in the isolated, buffer-perfused heart.
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The hepatoprotective effect of carnosine against ischemia/reperfusion liver injury in rats.肌肽对大鼠肝脏缺血/再灌注损伤的肝保护作用。
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Increased endogenous ascorbyl free radical formation with singlet oxygen scavengers in reperfusion injury: an EPR and functional recovery study in rat hearts.再灌注损伤中内源性抗坏血酸自由基形成增加与单线态氧清除剂:大鼠心脏的电子顺磁共振和功能恢复研究
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