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仓鼠棕色脂肪组织线粒体对芥酰肉碱抑制的部分保护作用归因于高辅酶A水平:与大鼠棕色脂肪组织线粒体的比较。

Partial protection against erucoyl-carnitine inhibition in hamster brown-adipose-tissue mitochondria is due to high CoA levels: a comparison with rat brown-adipose-tissue mitochondria.

作者信息

Alexson S, Nedergaard J, Cannon B

出版信息

Comp Biochem Physiol B. 1986;83(1):191-6. doi: 10.1016/0305-0491(86)90352-4.

DOI:10.1016/0305-0491(86)90352-4
PMID:3943304
Abstract

Brown-adipose-tissue mitochondria isolated from golden hamsters were found to contain more CoA per mg protein than rat brown-fat mitochondria, and after incubation with erucoyl-carnitine, a higher free CoA level remained, than in rat mitochondria. In accordance with the suggestion (Alexson et al. (1985) Biochim. biophys. Acta 834, 149-158) that the inhibitory effect of erucoyl-carnitine on brown-fat mitochondrial respiration is entirely due to CoA sequestration, hamster mitochondria (with more CoA) were less sensitive to erucoyl inhibition than were rat mitochondria. Thus, increased mitochondrial CoA levels may augment the ability of animals to withstand the detrimental effects of a high erucoyl ester content of the diet.

摘要

从金黄地鼠分离出的棕色脂肪组织线粒体,每毫克蛋白质所含的辅酶A比大鼠棕色脂肪线粒体更多。在用芥酸肉碱孵育后,其游离辅酶A水平比大鼠线粒体中的更高。根据Alexson等人(1985年,《生物化学与生物物理学报》834卷,第149 - 158页)提出的芥酸肉碱对棕色脂肪线粒体呼吸的抑制作用完全是由于辅酶A被隔离的观点,仓鼠线粒体(含有更多辅酶A)对芥酸抑制的敏感性低于大鼠线粒体。因此,线粒体辅酶A水平的升高可能增强动物抵御高芥酸酯含量饮食有害影响的能力。

相似文献

1
Partial protection against erucoyl-carnitine inhibition in hamster brown-adipose-tissue mitochondria is due to high CoA levels: a comparison with rat brown-adipose-tissue mitochondria.仓鼠棕色脂肪组织线粒体对芥酰肉碱抑制的部分保护作用归因于高辅酶A水平:与大鼠棕色脂肪组织线粒体的比较。
Comp Biochem Physiol B. 1986;83(1):191-6. doi: 10.1016/0305-0491(86)90352-4.
2
Inhibition of acetyl-carnitine oxidation in rat brown-adipose-tissue mitochondria by erucoyl-carnitine is due to sequestration of CoA.芥酰肉碱对大鼠棕色脂肪组织线粒体中乙酰肉碱氧化的抑制作用是由于辅酶A的螯合。
Biochim Biophys Acta. 1985 Apr 25;834(2):149-58. doi: 10.1016/0005-2760(85)90150-x.
3
Fatty acids as acute regulators of the proton conductance of hamster brown-fat mitochondria.脂肪酸作为仓鼠棕色脂肪线粒体质子传导的急性调节因子。
Eur J Biochem. 1982 Dec 15;129(2):373-80. doi: 10.1111/j.1432-1033.1982.tb07060.x.
4
Control of sn-glycerol 3-phosphate oxidation in brown adipose tissue mitochondria by calcium and acyl-CoA.钙和酰基辅酶A对棕色脂肪组织线粒体中sn-甘油-3-磷酸氧化的调控
Biochim Biophys Acta. 1974 Apr 26;348(1):115-25. doi: 10.1016/0005-2760(74)90097-6.
5
Specific interaction of fatty acyl-CoA esters with brown adipose tissue mitochondria.脂肪酰辅酶A酯与棕色脂肪组织线粒体的特异性相互作用。
Am J Physiol. 1985 Jun;248(6 Pt 1):E699-705. doi: 10.1152/ajpendo.1985.248.6.E699.
6
Hamster brown-adipose-tissue mitochondria. The role of fatty acids in the control of the proton conductance of the inner membrane.仓鼠棕色脂肪组织线粒体。脂肪酸在控制内膜质子传导中的作用。
Eur J Biochem. 1976 Aug 16;67(2):511-7. doi: 10.1111/j.1432-1033.1976.tb10717.x.
7
Acetate, a major end product of fatty-acid oxidation in hamster brown-adipose-tissue mitochondria.乙酸盐,仓鼠棕色脂肪组织线粒体中脂肪酸氧化的主要终产物。
Eur J Biochem. 1974 Sep 16;47(3):517-25. doi: 10.1111/j.1432-1033.1974.tb03720.x.
8
The effect of ATP and carnitine on the endogenous respiration of mitochondria from brown adipose tissue.ATP和肉碱对棕色脂肪组织线粒体内源性呼吸的影响。
Experientia. 1968 May 15;24(5):431-2. doi: 10.1007/BF02144369.
9
The physiological role of pyruvate carboxylation in hamster brown adipose tissue.丙酮酸羧化作用在仓鼠棕色脂肪组织中的生理作用。
Eur J Biochem. 1979 Mar;94(2):419-26. doi: 10.1111/j.1432-1033.1979.tb12909.x.
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Changes in mitochondrial components of hamster brown adipose tissue in response to cold acclimation.仓鼠棕色脂肪组织线粒体成分对冷适应的变化。
Biochem J. 1981 Feb 15;194(2):653-6. doi: 10.1042/bj1940653.

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