对氧磷酶-1与脑梗死相关性研究进展
2021-05-06云艳芳黄建敏杨桂新
云艳芳 黄建敏 杨桂新
【摘要】 脑梗死是指大脑的供氧血管严重狭窄或者堵塞,在一定条件下脑组织供血供氧不足引起脑组织坏死,导致神经功能缺失的一种疾病。脑梗死的发生与血管内膜损伤、炎细胞聚集、血管壁脂肪及糖类沉积、氧化应激、脂肪变性、纤维组织增生等致血管弹性下降、管腔狭窄因素相关。对氧磷酶-1是一种与高密度脂蛋白有关的酶,有调节脂质代谢、抗炎、抗氧化的作用。本文就对氧磷酶-1与脑梗死的关系进行简要综述。
【关键词】 对氧磷酶-1 脑梗死 中风 基因多态性
Research Progress on the Correlation Between Paraoxonase-1 and Cerebral Infarction/YUN Yanfang, HUANG Jianmin, YANG Guixin. //Medical Innovation of China, 2021, 18(07): -180
[Abstract] Cerebral infarction refers to the severe stenosis or blockage of the oxygen supplying vessels of the brain. Under certain conditions, the insufficient blood supply and oxygen supply of the brain tissue causes brain tissue necrosis and leads to a disease of the loss of nerve function. The occurrence of cerebral infarction is related to vascular intimal damage, inflammatory cell aggregation, vascular wall fat and carbohydrate deposition, oxidative stress, steatosis, fibrous tissue hyperplasia and other factors that cause vascular elasticity decline and lumen stenosis. Paraoxonase-1 is an enzyme associated with high-density lipoprotein, which has the effect of regulating lipid metabolism, anti-inflammatory and anti-oxidation. This article briefly reviews the relationship between oxyphosphatase-1 and cerebral infarction.
[Key words] Paraoxonase-1 Cerebral infarction Stroke Gene polymorphism
First-authors address: Graduate School, Youjiang Medical University for Nationalities, Baise 533000, China
doi:10.3969/j.issn.1674-4985.2021.07.042
脑梗死是常见的脑血管病,其高发病率、高致残率、高致死率,给社会及家庭、个人带来沉重的负担。脑梗死的发病机制复杂,是遗传、饮食、环境、地域等多种因素共同作用的结果,其发生与血脂代谢异常、高同型半胱氨酸、炎症反应、氧化应激等因素相关,动脉粥样硬化是脑梗死的基本病因。对氧磷酶-1是对氧磷酶(paraoxonase,PON)家族的一员,具有水解脂质过氧化物、抗炎、抗氧化的功能,不仅能降解有机磷神经毒性,而且与动脉粥样硬化、冠心病及2型糖尿病等疾病发病有密切关系[1]。本文就PON-1与脑梗死的关系做一简要综述。
1 PON-1的生物特性及其基因多態性
PON家族有PON-1、PON-2、PON-3三个成员,其中以PON-1的血液活性最强,并且研究最充分。PON-1是含有354个氨基酸、分子量为43~45 kd的糖蛋白,是一种钙依赖性多功能酶,有两个重要的钙结合位点,其中一个钙离子结合位点对维持酶的构象稳定性具有重要作用,而另一个位点则用于水解底物。……
