The reversal of the inhibition on lipids synthesis by L‐659,699 in arterial smooth muscle cells cultures

The reversal of the inhibition on lipids synthesis by L‐659,699 in arterial smooth muscle cells cultures
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L-659,699 在动脉平滑肌细胞培养物中逆转脂质合成的抑制作用

DOI:
10.1023/a:1010913621768
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发表时间:
2001
影响因子:
4.3
通讯作者:
A. Linares
A. Linares
中科院分区:
生物学3区
文献类型:
--
作者:
Á. Carazo;Ma. José Alejandere;A. Louktibi;A. Linares

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The β‐lactone isolated from Fusarium termed L‐659,699 is a potent specific inhibitor of the enzyme 3‐hydroxi‐3‐methylglutaril coenzyme A (HMG-CoA) synthase. In cultures of smooth muscle cells (SMC) isolated from aortic-arch of control (C‐SMC) and 5% of cholesterol diet (Ch-SMC) treated chicks, the incorporation of (14C)‐acetate to lipids (cholesterol, triacylglycerides and cholesterol ester) were greater in Ch‐SMC cultures than in C‐SMC and the presence of 0.05 μM L‐659,699 for 2 h in the incubation medium decrease the synthesis of cholesterol however the triacylglycerides synthesis increase. The effect of inhibitor is stronger in young cultures (3–4 steps) than in the older ones (11–12 steps). In young C‐SMC and Ch‐SMC cultures the inhibition of cholesterol and triacylglycerides synthesis by L‐659,699 was reversal.
体内胆固醇合成调节剂对乙酰乙酰辅酶A合成酶活性的调节以及乙酰乙酸在胆固醇生成中的利用。
DOI: --
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3-羟基-3-甲基戊二酰辅酶A还原酶和3-羟基-3-甲基戊二酰辅酶A合酶在大鼠肝脏和肠道中的定位受考来烯胺和美维诺影响。
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动脉粥样硬化易感鸽子的培养动脉平滑肌细胞产生的蛋白多糖的独特合成和结构特征。
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