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人精浆中的血小板活化因子乙酰水解酶

Platelet-activating factor acetylhydrolase in human seminal plasma.

作者信息

Letendre E D, Miron P, Roberts K D, Langlais J

机构信息

University of Montreal, Maisonneuve-Rosemont Hospital Research Center, Quebec, Canada.

出版信息

Fertil Steril. 1992 Jan;57(1):193-8.

PMID:1730316
Abstract

OBJECTIVE

To search for the presence of platelet-activating factor (PAF) acetylhydrolase activity in human seminal plasma.

DESIGN

Experimental.

SETTING

Reproductive laboratory in a university-affiliated hospital research center.

PARTICIPANTS

Human male volunteers were selected on the basis of apparent normal health.

RESULTS

Human seminal plasma contained significant levels of PAF-acetylhydrolase activity. Enzymatic hydrolysis of PAF displayed typical kinetics and was a calcium-independent process. Platelet-activating factor acetylhydrolase in seminal plasma was associated with a very high-density lipoprotein fraction. Enzymatic activity was independent of sperm count and motility.

CONCLUSION

Human seminal plasma contains significant levels of PAF acetylhydrolase. This enzyme may be an important factor in the regulation of PAF concentration and activity.

摘要

目的

探寻人类精浆中血小板活化因子(PAF)乙酰水解酶活性的存在情况。

设计

实验性研究。

地点

大学附属医院研究中心的生殖实验室。

参与者

根据明显的健康状况选择人类男性志愿者。

结果

人类精浆含有显著水平的PAF-乙酰水解酶活性。PAF的酶促水解呈现典型动力学,且是一个不依赖钙的过程。精浆中的血小板活化因子乙酰水解酶与极高密度脂蛋白部分相关。酶活性与精子计数和活力无关。

结论

人类精浆含有显著水平的PAF乙酰水解酶。这种酶可能是调节PAF浓度和活性的一个重要因素。

相似文献

1
Platelet-activating factor acetylhydrolase in human seminal plasma.人精浆中的血小板活化因子乙酰水解酶
Fertil Steril. 1992 Jan;57(1):193-8.
2
Platelet-activating factor acetylhydrolase activity in bovine seminal plasma.牛精浆中血小板活化因子乙酰水解酶活性
J Androl. 1993 Sep-Oct;14(5):335-9.
3
Platelet-activating factor acetylhydrolase activity in seminal plasma from the bull, stallion, rabbit, and rooster.公牛、种马、兔子和公鸡精液中血小板活化因子乙酰水解酶的活性
Biol Reprod. 1994 Apr;50(4):912-6. doi: 10.1095/biolreprod50.4.912.
4
Partial purification and localization of platelet-activating factor acetylhydrolase from bovine seminal plasma.牛精浆中血小板活化因子乙酰水解酶的部分纯化及定位
J Androl. 1997 Sep-Oct;18(5):540-8.
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Human plasma platelet-activating factor acetylhydrolase. Association with lipoprotein particles and role in the degradation of platelet-activating factor.人血浆血小板活化因子乙酰水解酶。与脂蛋白颗粒的关联及在血小板活化因子降解中的作用。
J Biol Chem. 1987 Mar 25;262(9):4215-22.
6
Bovine seminal platelet-activating factor acetylhydrolase: association properties in seminal plasma and with lipoproteins.牛精浆血小板激活因子乙酰水解酶:在精浆中的缔合特性及其与脂蛋白的关系
Biochim Biophys Acta. 1998 Jun 15;1392(2-3):176-84. doi: 10.1016/s0005-2760(98)00037-x.
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The contribution of individual lipoproteins to the degradation of platelet-activating factor in human serum.个体脂蛋白对人血清中血小板活化因子降解的作用。
Haemostasis. 1989;19(3):160-8. doi: 10.1159/000215910.
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Phospholipase A2 from bovine seminal plasma is a platelet-activating factor acetylhydrolase.来自牛精浆的磷脂酶A2是一种血小板活化因子乙酰水解酶。
Biochem J. 1998 Jan 1;329 ( Pt 1)(Pt 1):41-7. doi: 10.1042/bj3290041.
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[A simple measurement of plasma platelet-activating factor (PAF) acetylhydrolase, normal level of activity, and distribution among lipoprotein fractions].[血浆血小板活化因子(PAF)乙酰水解酶的简易测定、正常活性水平及在脂蛋白组分中的分布]
Rinsho Byori. 1987 Oct;35(10):1149-53.
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Altered platelet activating factor metabolism in insulin dependent diabetes mellitus.
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Fertilization potential of human sperm is correlated with endogenous platelet-activating factor content.人类精子的受精潜能与内源性血小板激活因子含量相关。
J Assist Reprod Genet. 2003 May;20(5):192-5. doi: 10.1023/a:1023622126870.
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Phospholipase A2 from bovine seminal plasma is a platelet-activating factor acetylhydrolase.来自牛精浆的磷脂酶A2是一种血小板活化因子乙酰水解酶。
Biochem J. 1998 Jan 1;329 ( Pt 1)(Pt 1):41-7. doi: 10.1042/bj3290041.
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Enhanced embryo development of rabbit oocytes fertilized in vitro with platelet activating factor (PAF)-treated spermatozoa.用血小板活化因子(PAF)处理的精子体外受精的兔卵母细胞胚胎发育增强。
J Assist Reprod Genet. 1993 Jan;10(1):91-4. doi: 10.1007/BF01204447.