不育症患者精子凋亡率与精浆活性氧水平检测及相关性分析

目的 检测不育症患者精子凋亡率与精浆活性氧水平并分析其相关性.方法 92例男性不育症患者,分为精索静脉曲张(VC)组(n=32)、白细胞精液症组(n=30)和其他原因组(n=30);另取24例成功进行体外授精精液样本作为对照组.采用计算机辅助精液分析系统行精液常规检测(精液pH值、精子密度和精子活力),Annexin V/PI染色法检测精子凋亡率,TBA法检测精浆活性氧水平.比较不育症各组与对照组各精液参数的差异,分析各组精子凋亡率与精浆活性氧水平的相关性.结果 不育症各组精子活力显著低于对照组(P<0.01),VC组和白细胞精液症组精子凋亡率和精浆活性氧水平显著高于对照组(P<0.05或P<0.01).白细胞精液症组精浆活性氧水平与精子凋亡率呈显著正相关(r=0.573,P<0.05).结论 精子凋亡率和精浆活性氧水平升高可能与VC患者和白细胞精液症患者不育相关,白细胞精液症患者活性氧水平升高可能是引起精子凋亡率升高的重要因素之一.     

Fucose and sialic acid expressions in human seminal fibronectin and α{1} -acid glycoprotein associated with leukocytospermia of infertile men

Introduction: The aim of this study was to compare fucose and sialic acid residue expression on fibronectin and α₁-acid glycoprotein in the seminal plasma of men suspected of infertility and suffering from leukocytospermia. Subjects and methods: Seminal ejaculates were collected from 27 leukocytospermic and 18 healthy, normozoospermic men. The relative degree of fucosylation and sialylation of fibronectin and α₁-acid glycoprotein was estimated by ELISA using fucose and sialic acid specific lectins from Aleuria aurantia, Lotus tetragonolobus, and Ulex europaeus as well as Maackia amurensis and Sambucus nigra, respectively. Results: Leukocytospermic seminal fibronectin, in comparison with fibronectin of normal fertile group, showed lower relative reactivity with AAL, LTA and UEA, and higher reactivity with MAA and SNA, while the AGP of the leukocytospermic group was less reactive with AAL, and the relative reactivity with LTA and MAA was significantly higher. Fibronectin and α₁-acid glycoprotein reactivity with UEA and MAA showed high positive correlations. Discussion: Leukocytospermia was associated with the alterations of terminal monosaccharide expression in human seminal fibronectin and α₁-acid glycoprotein. The increase of sialyl-Lewis^x antigen in α₁-acid glycoprotein can be used as a marker of genital tract inflammation manifested by leukocytospermia.     

不育症患者精子凋亡率与精浆活性氧水平检测及相关性分析

目的检测不育症患者精子凋亡率与精浆活性氧水平并分析其相关性。方法92例男性不育症患者,分为精索静脉曲张（VC）组（n=32）、白细胞精液症组（n=30）和其他原因组（n=30）;另取24例成功进行体外授精精液样本作为对照组。采用计算机辅助精液分析系统行精液常规检测（精液pH值、精子密度和精子活力）,Annexin V／PI染色法检测精子凋亡率,TBA法检测精浆活性氧水平。比较不育症各组与对照组各精液参数的差异,分析各组精子凋亡率与精浆活性氧水平的相关性。结果不育症各组精子活力显著低于对照组（P〈0．01）,VC组和白细胞精液症组精子凋亡率和精浆活性氧水平显著高于对照组（P〈0．05或P〈0．01）。白细胞精液症组精浆活性氧水平与精子凋亡率呈显著正相关（r=0．573,P〈0．05）。结论精子凋亡率和精浆活性氧水平升高可能与VC患者和白细胞精液症患者不育相关,白细胞精液症患者活性氧水平升高可能是引起精子凋亡率升高的重要因素之一。