Water-soluble Hexasulfobutyl[60]fullerene inhibit low-density lipoprotein oxidation in aqueous and lipophilic phases.
Water-soluble Hexasulfobutyl[60]fullerene inhibit low-density lipoprotein oxidation in aqueous and lipophilic phases.
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水溶性六磺丁基[60]富勒烯抑制水相和亲脂相中的低密度脂蛋白氧化。
DOI:
10.1111/j.1525-1373.2000.22403.x
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发表时间:
2000
期刊:
影响因子:
--
通讯作者:
H. Hsu
中科院分区:
文献类型:
--
作者:
Yuan;L. Chiang;Wei;H. Hsu
Oxidative modification of low-density lipoprotein (LDL) plays a pivotal role in the pathogenesis of atherosclerosis. Increasing the resistance of LDL to oxidation may therefore mitigate, or even prevent, atherosclerosis. A new water-soluble C60 derivative, hexasulfobutyl[60]fullerene [C60 - (CH2CH2CH2CH2-SO3Na)6; FC4S], consisting of 6 sulfobutyl moieties covalently bound onto the C60 cage is a potent free radical scavenger. This study explored the antioxidative effect of sulfobutylated fullerene derivatives (FC4S) on LDL oxidation. FC4S was found to be effective in protecting LDL against oxidation induced by either Cu2+ or azo peroxyl radicals generated initially in the aqueous or lipophilic phase, respectively. Levels of the oxidative products, conjugated diene and thiobarbituric acid-reactive substances, and the relative electrophoresis mobility of the LDL were decreased. The addition of 20 microM FC4S at the early stage of oxidation increased the kinetic lag time from 69 +/- 11 to 14 +/- 10 min (P < 0.05) and decreased the propagation rate from 17.1 +/- 2.6 to 6.3 +/- 1.0 mOD/min (P < 0. 005). Persistent suppression of peroxidation reaction was observed upon further addition of FC4S after full consumption of all endogenous antioxidants during the propagation period. Intravenous injection of hypercholesterolemic rabbits with FC4S (1 mg/kg/day) efficiently decreased atheroma formation. Data substantiate the use of FC4S as an excellent hydrophilic antioxidant in protecting atheroma formation, via removing free radicals, in either aqueous or lipophilic phase.
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影响因子:
6.5
作者:
H. Kayden;M. Traber
通讯作者:
H. Kayden;M. Traber
DOI:
10.1016/0005-2760(95)00089-u
发表时间:
1995-08
期刊:
Biochimica et biophysica acta
影响因子:
--
作者:
K. L. Retsky;B. Frei
通讯作者:
K. L. Retsky;B. Frei
DOI:
10.1097/00006205-199307000-00001
发表时间:
1993-05
期刊:
The New England journal of medicine
影响因子:
--
作者:
M. Stampfer;C. Hennekens;J. Manson;G. Colditz;B. Rosner;W. Willett
通讯作者:
M. Stampfer;C. Hennekens;J. Manson;G. Colditz;B. Rosner;W. Willett
DOI:
10.1056/nejm198904063201407
发表时间:
1989
期刊:
The New England journal of medicine
影响因子:
--
作者:
Steinberg,D;Parthasarathy,S;Carew,TE;Khoo,JC;Witztum,JL
通讯作者:
Witztum,JL