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CAS号:1077-28-7
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英文名称:thioctic acid
分子式
分子量
EINECS号
MDL
Smiles
InChIKey
乙二醇化学百科
基本信息
物化性质
安全信息
生产及用途
DL-硫辛酸是一种独特的抗自由基物质,通常被称为广泛抗氧化剂。它是一种体内产生的维生素样物质。与其他体内产生的有特殊作用的抗氧化剂不同,DL-硫辛酸既不是严格的脂溶性,也不是水溶性,这使得它可以促进体内其他抗氧化剂的活性,也是抗氧化剂不足时广泛存在的替代品。例如,如果体内储存的维生素c、维生素E含量很低时,DL-硫辛酸可以进行暂时的补充。因为DL-硫辛酸可以通过血脑屏障,它可以帮助逆转脑卒中引起的不良反应。 α-硫辛酸的外观呈淡黄色粉末状结晶,几乎无味,化学结构是6,8一二DL-硫辛酸,在6,8碳之间以二硫键相连形成内二硫化合物。被还原时,二硫键断裂形成二氢DL-硫辛酸。α-硫辛酸不溶于水而溶于脂溶剂,有人将其列为脂溶性维生素;在甲醇、乙醇、氯仿、乙醚中易溶。 α-硫辛酸还是一种高效抗氧剂,在许多疾病的预防和治疗方面具有重要作用。DL-硫辛酸通过氧化型、还原型之间相互转变可以递氢,为抗氧化剂。人体能合成所需的DL-硫辛酸。目前,尚未发现有DL-硫辛酸的缺乏症。
The long terminal repeat (LTR) of HIV-1 is the target of cellular transcription factors such as NF-κB, and serves as the promoter-enhancer for the viral genome when integrated in host DNA. α-Lipoic Acid (Alpha-Lipoic acid, ALA), a naturally occurring dithiol compound, plays an essential role in mitochondrial bioenergetics. α-Lipoic Acid reduces lipid accumulation in the liver by regulating the transcriptional factors SREBP-1, FoxO1, and Nrf2, and their downstream lipogenic targets via the activation of the SIRT1/LKB1/AMPK pathway. Treatment of cells with α-Lipoic Acid (250, 500 and 1000 μM) significantly increases the NAD + /NADH ratio in HepG2 cells (P<0.05 or P<0.01). Treatment with α-Lipoic Acid (50, 125, 250 and 500 μM) increases SIRT1 activity in HepG2 cells. α-Lipoic Acid (50, 125, 250, 500 and 1000 μM) increases phosphorylation of AMPK and acetyl-CoA carboxylase (ACC) in HepG2 cells in a dose-dependent fashion.
C57BL/6J mice, divided into four groups, are fed an high-fat diet (HFD) for 24 weeks to induce nonalcoholic fatty liver disease (NAFLD) followed by daily administration of α-Lipoic Acid. Then, the effects of α-Lipoic Acid on hepatic lipid accumulation in long-term HFD-fed mice are assessed. Administration of α-Lipoic Acid (100 mg/kg or 200 mg/kg) markedly reduces visceral fat mass in mice. In addition, α-Lipoic Acid (100 mg/kg or 200 mg/kg) treatment inhibits the appetite and causes a dramatic weight loss (all P<0.05).
用途 维生素类药物,能刺激脂肪代谢。用于急性及慢性肝炎、肝硬化、肝性昏迷、脂肪肝、糖尿病等病的治疗及疗效保健 用途 抗氧化剂和作为如丙酮酸脱氢酶(pyruvate dehydrogenase) 和甘氨酸脱羧酶(glycine decarboxylase)的辅酶,外源性硫辛酸被细胞内两种或多种酶还原。这种还原形式影响了细胞清除自由基的进程。增加谷胱甘肽(glutathione)合成, 调控转录因子活性。降低了巨噬细胞髓磷脂的吞噬作用。
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