摘要
脂蛋白(a)(Lp(a))对人类,远古灵长类动物和欧洲刺猬蛋白的有限分布引起了人们对其可能的生理作用的相当大的兴趣和猜测。Lp(a)具有在人类中高度遗传决定的可变循环浓度(<0.1 - > 100 mg / ml)。这些特征引起了几个关于Lp(a)的起源和演化的理论。Lp(a)在损伤后具有保护作用,因为Lp(a)颗粒结合巨噬细胞和血小板膜受体,导致纤维蛋白激活和损伤愈合。另一方面,Lp(a)似乎牵涉到无菌斑的形成,也涉及主动脉瓣的脑血管事件和狭窄。 确定血浆Lp(a)水平的主要遗传因子是Lp(a)基因(LPA)。大多数白种人有血浆Lp(a)浓度正常,但种族的分布使之差异很大。与男性相比,女性似乎增加了Lp(a)水平,而2型糖尿病有利于降低血浆Lp(a)水平。 营养,激素和几种药物也可能影响循环Lp(a)水平。
关键词: 脂蛋白(a),进化,遗传因素,种族,性别,激素,药物等
Current Medicinal Chemistry
Title:Lipoprotein (a) Evolution: Possible Benefits and Harm. Genetic and Non-Genetic Factors Influencing its Plasma Levels
Volume: 24 Issue: 10
关键词: 脂蛋白(a),进化,遗传因素,种族,性别,激素,药物等
摘要: The limited distribution of lipoprotein (a) (Lp(a)) to humans, Old World primates and to the European hedgehog, has raised considerable interest and speculation regarding its possible physiological role. Lp(a) has variable circulating concentrations (<0.1 – >100 mg/ml) which are highly genetically determined in humans. These characteristics gave rise to several theories concerning the origins and evolution of Lp(a). Lp(a) has a protective role after injury since Lp(a) particles bind to macrophages and platelets membrane receptors, leading to fibrin activation and injury healing. On the other hand, Lp(a) seems to be implicated in the formation of atheromatic plaques but also in cerebrovascular events and stenosis of the aortic valve.
The main genetic factor determining plasma Lp(a) levels is the Lp(a) gene (LPA). Most Caucasian people have normal plasma Lp(a) concentrations, but there is important distribution variation according to race. Women seem to have increased Lp(a) levels compared with men, while diabetes mellitus type 2 favours lower plasma Lp(a) levels. Nutrition, hormones and several drugs may also influence circulating Lp(a) levels.Export Options
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Cite this article as:
Lipoprotein (a) Evolution: Possible Benefits and Harm. Genetic and Non-Genetic Factors Influencing its Plasma Levels, Current Medicinal Chemistry 2017; 24 (10) . https://dx.doi.org/10.2174/0929867324666170120155412
DOI https://dx.doi.org/10.2174/0929867324666170120155412 |
Print ISSN 0929-8673 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-533X |
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