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首页> 外文期刊>International Journal of Neuroscience >Hypothalamic digoxin, cerebral dominance, and mitochondrial function/free radical metabolism.
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Hypothalamic digoxin, cerebral dominance, and mitochondrial function/free radical metabolism.

机译:下丘脑地高辛,大脑优势和线粒体功能/自由基代谢。

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摘要

The present study assessed the biochemical differences of free radical metabolism and mitochondrial function between right hemispheric dominant and left hemispheric dominant individuals. The following parameters were measured: (1) plasma HMG CoA reductase activity, (2) isoprenoid metabolites--digoxin and ubiquinone, (3) plasma magnesium and RBC membrane Na(+)-K+ ATPase activity; (4) lipid peroxidation products--malondialdehyde, hydroperoxides and conjugated dienes, and NO, (5) reduced glutathione, and (6) activity of superoxide dismutase, catalase, GSH peroxidase, and GSH reductase. The results showed that right hemispheric dominant individuals had (i) increased plasma HMG CoA reductase activity and elevated digoxin levels, (ii) decreased plasma magnesium and RBC membrane Na(+)-K+ ATPase activity, (iii) reduced ubiquinone levels, (iv) with increased levels of lipid peroxidation products and NO, (v) decreased levels of reduced glutathione and free radical scavenging enzymes, and (vi) increased tryptophan and reduced tyrosine levels. Left hemispheric dominant individuals had the opposite patterns. Right hemispheric dominance represents a hyperdigoxinemic state with membrane sodium-potassium ATPase inhibition and increased lipid peroxidation. Left hemispheric dominance represents the reverse pattern with hypodigoxinemic/membrane sodium-potassium ATPase stimulation and decreased lipid peroxidation. Cerebral dominance can regulate mitochondrial function and free radical metabolism.
机译:本研究评估了右半球优势个体和左半球优势个体之间自由基代谢和线粒体功能的生化差异。测量了以下参数:(1)血浆HMG CoA还原酶活性,(2)类异戊二烯代谢物-地高辛和泛醌,(3)血浆镁和RBC膜Na(+)-K + ATPase活性; (4)脂质过氧化产物-丙二醛,氢过氧化物和共轭二烯以及NO,(5)还原型谷胱甘肽,以及(6)超氧化物歧化酶,过氧化氢酶,GSH过氧化物酶和GSH还原酶的活性。结果表明,右半球优势个体具有(i)血浆HMG CoA还原酶活性增加和地高辛水平升高,(ii)血浆镁和RBC膜Na(+)-K + ATPase活性降低,(iii)泛醌水平降低,(iv )脂质过氧化产物和NO含量升高,(v)还原型谷胱甘肽和自由基清除酶含量降低,(vi)色氨酸升高,酪氨​​酸含量降低。左半球优势个体具有相反的模式。右半球占优势表示高地高辛状态,具有膜钠钾ATP酶抑制作用和脂质过氧化作用增加。左半球占主导地位代表低二恶英/膜钠钾ATPase刺激和脂质过氧化减少的反向模式。脑优势可以调节线粒体功能和自由基代谢。

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