精浆弹性硬蛋白酶与精液主要参数及精子功能相关性分析

目的 探讨精浆弹性硬蛋白酶与精液主要参数及精子功能指标的关系.方法 按照WHO<人类精液及精子-宫颈粘液相互作用实验室检验手册>要求,对170例不孕夫妇中的男性患者进行精液常规检测及精子功能分析,根据精浆弹性硬蛋白酶的检测结果将所有患者分为A、B、C3组.A组为精浆弹性硬蛋白酶含量＞1 000ng/ml;B组为精浆弹性硬蛋白酶含量290～1 000 ng/ml;C组为精浆弹性硬蛋白酶含量＜290ng/ml.通过比较三组的精液主要参数及精子功能指标来分析精浆弹性硬蛋白酶与男性不育各因素的相关性.结果 170例患者中A组56例(32.9%)、B组38例(22.4%)、C组76例(44.7%).与C组相比A组在精子活率、活力、头部畸形、顶体酶活性指标方面均显著低下(P＜0.01),而B组与C组相比上述指标差异无统计学意义(P＞0.05),各组间精子密度及DNA完整性的差异无统计学意义(P＞0.05).结论 精浆弹性硬蛋白酶与精液质量密切相关,精浆弹性硬蛋白酶作为男性生殖道感染的指标,在评估男性生育力、男性不育症的诊断和治疗,以及精子功能等方面有着重要的临床意义.     

精浆弹性蛋白酶与精液常规参数及精子DNA完整性的相关性研究

目的:观察男性不育患者精浆弹性蛋白酶水平与精液质量及精子DNA完整性之间的关系,探讨生殖道炎症隐性感染对男性不育的影响。方法:选择202例男性不育患者依照精浆弹性蛋白酶实验结果并结合其他生殖道感染炎症标志物将男性不育分为确认感染组和隐性感染组,选择同期因女方因素不孕前来检查的生育力评估正常,排除生殖道炎症及其他影响生育的致病因素的健康男性32例作为对照组。统计分析不育组与正常对照组、不育组中确认感染组与隐性感染组、不育组中弹性蛋白酶水平正常者与升高者之间精浆弹性蛋白酶水平与精液质量及精子DNA完整性之间的差异。精子浓度及活力用计算机辅助精子分析系统检测,精子形态检查采用Diff-Quik染色法,精子DNA完整性分析用精子染色质扩散法(SCD),精浆弹性蛋白酶用酶联免疫吸附法。结果:正常对照组和不育组的正常形态精子百分率分别为(11.9±9.2)%和(4.1±3.3)%、精子DNA碎片指数(DFI)分别为(10.9±8.7)%和(21.3±12.7)%,精浆弹性蛋白酶分别为(220.9±73.1)ng/ml和(1687.3±1621.2)ng/ml,前向运动精子百分率(PR)分别为(49.7±10.8)%和(19.1±10.3)%,两组相互比较各指标均具有统计学差异(P均0.05)。不育组中弹性蛋白酶升高者较弹性蛋白酶正常者,PR显著降低,DFI显著升高,差异均具有统计学意义(P0.05)。隐性感染和确证感染患者间精液量、精子浓度、PR、正常形态精子百分率和DFI的差异均无统计学意义(P均0.05)。结论:生殖道炎症感染无论是显性或者是隐性有可能导致DNA损伤程度增加,从而影响男性生育。     

解脲支原体与精浆柠檬酸、弹性硬蛋白酶相关性分析

解脲支原体（Uu）可引起慢性前列腺炎、附睾炎,并影响到生育功能。卫生部文件（卫科教发[2003]176号）《卫生部关于修订人类辅助生殖技术与人类精子库相关技术规范、基本标准和伦理原则的通知》规定：男女一方患有生殖泌尿系统急性感染或性传播疾病是辅助生殖技术的禁忌症;对精液的检查要求是支原体检查阴性,常规细菌培养以排除致病菌感染。男科实验室诊断指标中性传播疾病包括,要求该项目检查为阴性。     

精浆弹性硬蛋白酶与精子 DNA 完整性及精液参数的影响分析

目的：探讨男性不育患者精浆弹性硬蛋白酶水平与精子 DNA完整性及精液质量之间的关系。方法选择148例男性不育患者根据精浆弹性硬蛋白酶的检测结果将所有患者分为 A、B、C3组。 A组为精浆弹性硬蛋白酶含量＜290 ng／mL;B组为精浆弹性硬蛋白酶含量290～1000 ng／mL;C 组为精浆弹性硬蛋白酶含量＞1000ng／mL。用酶联免疫吸附试验（ ELISA）检测精浆中弹性硬蛋白酶,精子 DNA完整性检测用精子染色质扩散法（ SCD）,精液参数用计算机辅助精子分析系统检测。结果 A组与 C 组相比精子存活率与前向运动精子百分率（PR）均升高、精子DNA碎片指数（DFI）明显降低,差异均具有统计学意义（ P＜0．05）。 B组的上述指标与A组相比,差异均无统计学意义（ P ＞0．05）。结论精浆弹性硬蛋白酶与精子DNA完整性及精液质量密切相关,生殖道感染是影响男性精液质量的一个重要原因。     

精浆尿酸的检测及其与精液参数的相关性研究

目的：建立精浆尿酸（UA）的检测方法并探讨精浆UA水平与精液参数的相关性。方法：根据检测血清UA的方法加以改良建立检测精浆UA的方法,并观察批内变异和不同技术人员检测结果之间的差异以评价方法的可接受性。同时分析138例男性精浆UA水平与患者年龄、禁欲时间、精液量、pH、精子密度、活动率、a＋b级精子百分率和正常形态精子百分率之间的相关性。结果：精浆UA检测方法的批内变异为9.16%,2位技术人员的检测结果没有显著性差异（P=0.541）。精浆UA水平与正常形态精子百分率呈正相关（r=0.350,P=0.025）,与精子活动率和a＋b级精子百分率有呈正相关的趋势（r=0.147和0.156,P=0.085和0.068）,而与精液分析其他参数如精液量、pH、精子密度、禁欲时间以及患者年龄等无相关性。结论：通过对血清UA检测方法加以改良可以建立可接受的精浆UA检测方法。精子形态学、活动率及a＋b级精子百分率可能与精浆UA水平高低有关。     

精浆尿酸的检测及其与精液参数的相关性研究

目的:建立精浆尿酸(UA)的检测方法并探讨精浆UA水平与精液参数的相关性。方法:根据检测血清UA的方法加以改良建立检测精浆UA的方法,并观察批内变异和不同技术人员检测结果之间的差异以评价方法的可接受性。同时分析138例男性精浆UA水平与患者年龄、禁欲时间、精液量、pH、精子密度、活动率、a+b级精子百分率和正常形态精子百分率之间的相关性。结果:精浆UA检测方法的批内变异为9.16%,2位技术人员的检测结果没有显著性差异(P=0.541)。精浆UA水平与正常形态精子百分率呈正相关(r=0.350,P=0.025),与精子活动率和a+b级精子百分率有呈正相关的趋势(r=0.147和0.156,P=0.085和0.068),而与精液分析其他参数如精液量、pH、精子密度、禁欲时间以及患者年龄等无相关性。结论:通过对血清UA检测方法加以改良可以建立可接受的精浆UA检测方法。精子形态学、活动率及a+b级精子百分率可能与精浆UA水平高低有关。     

精子DNA碎片指数与精浆生化指标及精液参数的相关性分析

<正>传统的精液参数分析包括精液体积、精子浓度、精子存活率、前向运动精子百分率(PR%)以及精子形态学分析等,这些检测结果可以为临床医生对男性不育患者提供初步的临床诊断。随着对不育症病因及机制的深入研究,精浆生化指标、精子DNA碎片指数(DNA fragmentation index,DFI)已走进临床实验室为患者病因诊断提供新依据。上述各项精液参数同时检测,可较为全面的了解患者精液状态、精子运动能力、精子形态、精子头部核内遗传物质的缺陷程度以及附属性腺分泌功能,对不育症的诊断和治疗     

24种精浆生化指标与精液常规参数的相关性研究

目的:调查24种精浆生化指标与精液常规参数之间的相关性。方法:66例生育力低下男性的精液常规参数包括精液量、精子浓度、精子总数、精子活动率及前向运动精子百分率(PR)按WHO5标准进行分析,相应精浆中的24种生化指标在进行质控的基础上,使用全自动生化分析仪和电解质分析仪进行测定,同时24种精浆生化指标所测结果与各精液常规参数的相关性被分析。结果:精浆中蛋白水平包括总蛋白(TP)、白蛋白(Alb)和球蛋白(Glb)均与精子浓度呈显著正相关,且精浆白蛋白水平与精子总数亦呈显著正相关;精浆谷草转氨酶(AST)活性和乳酸脱氢酶(LDH)活性与精子浓度和精子总数均呈极显著正相关;精浆碱性磷酸酶(AKP)活性与精液量呈显著负相关,而与精子活动率呈显著正相关;精浆α羟丁酸脱氢酶(αHBDH)活性与精子浓度和精子总数呈极显著正相关,相关系数(r)达0.7以上;尿素氮(UN)与精液量呈显著负相关,而肌酐(Cr)与精液量、精子浓度和精子总数均呈显著负相关;精浆葡萄糖(Glu)水平与精子浓度和精子总数均呈显著负相关;精浆甘油三酯(TG)与精液量呈显著正相关,而与精子活动率呈显著负相关;精浆谷丙转氨酶(ALT)、γ谷氨酰转移酶(GGT)、腺苷脱氨酶(ADA)、尿酸(UA)、总胆固醇(TC)、肌酸激酶(CK)及超敏C反应蛋白(hs CRP)未见与上述精液参数相关。精浆钾、钠、氯、钙、镁、磷中只有精浆氯与精液量呈显著负相关,余均无显著相关性。结论:精浆中许多生化指标与精液常规参数均密切相关,提示这些生化组分可能在精子发生、成熟和生理代谢过程中起作用。     

精浆碱性成纤维细胞生长因子与精液常规和形态学参数相关性研究

为研究男性不育症患者精浆碱性成纤维细胞生长因子(basic fibroblast growth factor,bFGF)的变化,笔者用酶联免疫吸附分析法(ELISA)对男性不育患者精浆bFGF浓度进行了测定,结果如下。1资料与方法1.1研究对象选择90例男性不育患者(包括少弱畸形精子症和无精子症患者),年龄(32.47±5.59)岁;不育年限1~10(3.7±2.6)年。原发性不育67例,继发性不育23例,双侧睾丸体积(25.69±5.24)m l,其中7例睾丸体积约10 m l。疾病诊断:隐睾1例,染色体核型异常47,XXY 5例,Y染色体基因(AZF)微缺失3例,输精管缺如2例,精索静脉曲张20例,附睾衣原体感染8例,…     

捐精志愿者精浆生化指标与精液常规参数的相关性分析

目的:探讨捐精志愿者精浆生化指标与精液常规参数的关系,以及精浆生化指标之间的关系.方法:84例河北省人类精子库的捐精志愿者为研究对象,采用全自动生化分析仪方法检测精浆中性α-葡糖苷酶(NAG)、果糖(Fru)、柠檬酸(CA)、酸性磷酸酶(ACP)、锌(Zn)、尿酸(UA)、乳酸脱氢酶(LDH)和α-羟丁酸脱氢酶(α-H...     

Granulocyte elastase levels do not correlate with anaerobic and aerobic bacterial growth in seminal plasma from infertile men

Seminal culture and leucocyte elastase measurements were undertaken on samples from 30 men attending an infertility clinic. Elastase levels over 1000 ng ml-1 were obtained in 14 men and positive bacterial culture in 11 men, but there was no correlation between these two sets of measurements. While granulocyte elastase measurement in semen may reflect inflammation, our study suggests that it cannot be used as a simple marker of infection particularly in a population such as ours where the prevalence of prostatitis and genital infection is low.     

精索静脉曲张不育患者的精液常规、精子动态参数和精浆生化指标分析

目的观察精索静脉曲张（VC）伴不育患者的精液质量和精浆生化水平的变化。方法利用计算机辅助精液分析系统（CASA）及酶免法分别检测52例VC不育患者、85例非精索静脉曲张不育患者和21例正常生育男性的精液常规、精子动态参数以及精浆酸性磷酸酶、精浆锌（Zn）、果糖、α-糖苷酶的含量。结果与对照组相比,VC组患者A级精子率、（A＋B）级精子率、精子直线速度（VSL）、直线性（LIN）、侧摆幅度（ALH）、精浆锌含量、α-糖苷酶的含量与对照组相比显著下降（P〈0.05）。与非VC不育组相比,VC不育组（A＋B）级精子率、精子直线速度（VSL）、侧摆幅度（ALH）、精浆锌含量、α-糖苷酶的含量也明显降低（P〈0.05）。并且随着精索静脉曲张程度的增加,VC患者A级精子率、（A＋B）级精子率、精子曲线速度VCL、直线速度VSL、直线性LIN、平均路径速度VAP、前向性STR、侧摆幅度ALH、精浆中锌含量、α-糖苷酶的含量有下降趋势。结论 VC能够降低精子活动率、精子动态活动能力以及改变了精浆微环境,从而导致男性生育力下降。     

Heme oxygenase enzyme activity in human seminal plasma of fertile and infertile males

This work aimed to assess heme oxygenase (HO) enzyme activity relationship with different human semen parameters. One hundred and twenty men were divided according to their sperm count and clinical examination into: obstructive azoospermia (n = 20), nonobstructive azoospermia (NOA) (n = 25), oligozoospermia (n = 35) and normozoospermia (n = 40). Semen analysis, western blot for HO-1 and HO-2, and estimation of seminal plasma HO enzyme activity chemically in the form of bilirubin concentration were carried out. Seminal plasma HO enzyme activity was very low in OA specimens, low in NOA, moderate in oligozoospermia while higher in normozoospermia (mean +/- SD; 6.26 +/- 2.2, 81.4 +/- 35.5, 283.8 +/- 90.1, 657.4 +/- 227.6 pmol ml(-1) min(-1)) with significant differences. Western blot analysis demonstrated HO-2 expression in all studied groups whereas HO-1 was highly expressed in fertile normozoospermic group compared with other groups. There was positive correlation between seminal plasma HO enzyme activity and sperm concentration, sperm motility percentage, motile spermatozoa ml(-1) and sperm normal morphology per cent. It is concluded that HO enzyme activity in the human seminal plasma is related to spermatogenesis and sperm-motility processes.     

Effect of smoking on seminal plasma ascorbic acid in infertile and fertile males

This work aimed to assess the relationship of seminal ascorbic acid levels with smoking in infertile males. One hundred and seventy men were divided into four groups: nonobstructive azoospermia [NOA: smokers (n = 20), nonsmokers (n = 20)]; oligoasthenozoospermia [smokers (n = 30), nonsmokers (n = 20)]; asthenozoospermia [smokers (n = 20), nonsmokers (n = 20)] and normozoospermic fertile men [smokers (n = 20), nonsmokers (n = 20)]. The patients underwent medical history, clinical examination, conventional semen analysis and estimation of ascorbic acid in the seminal plasma calorimetrically. There was a significant decrease in the mean seminal plasma ascorbic acid levels in smokers versus nonsmokers in all groups (mean +/- SD; 6.03 +/- 2.18 versus 6.62 +/- 1.29, 7.81 +/- 1.98 versus 9.44 +/- 2.15, 8.09 +/- 1.98 versus 9.95 +/- 2.03, 11.32 +/- 2.15 versus 12.98 +/- 12.19 mg dl(-1) respectively). Fertile subjects, smokers or not, demonstrated significant higher seminal ascorbic acid levels than any infertile group. Seminal plasma ascorbic acid in smokers and nonsmokers was correlated significantly with sperm concentration (r = 0.59, 0.60, P < 0.001), sperm motility (r = 0.65, 0.55, P < 0.001) and negatively with sperm abnormal forms per cent (r = -0.53, -0.50, P < 0.001). Nonsignificant correlations were elicited with semen volume (r = 0.2, 0.09) or liquefaction time (r = 0.03, 0.06). It is concluded that seminal plasma ascorbic acid decreased significantly in smokers and infertile men versus nonsmokers and fertile men, and is significantly correlated with the main sperm parameters: count, motility and normal morphology. Also, cigarette smoking is associated with reduced semen main parameters that could worsen the male fertilizing potential, especially in borderline cases.     

Beta-endorphin in serum and seminal plasma in infertile men

Aim:To access beta-endorphin levels in serum as well as seminal plasma in different infertile male groups.Methods:Beta-endorphin was estimated in the serum and seminal plasma by enzyme-linked immunosorbent assay(ELISA)method in 80 infertile men equally divided into four groups:non-obstructive azoospermia(NOA),obstructive azoosper-mia(OA),congenital bilateral absent vas deferens(CBVAD)and asthenozoospermia.The results were compared tothose of 20 normozoospermic proven fertile men.Results:There was a decrease in the mean levels of beta-endorphin in the seminal plasma of all successive infertile groups(mean±SD:NOA 51.30±27.37,OA 51.88±9.47,CBAVD 20.36±13.39,asthenozoospermia 49.26±12.49 pg/mL,respectively)compared to the normozoospermicfertile control(87.23±29.55 pg/mL).This relation was not present in mean serum level of beta-endorphin betweenfour infertile groups(51.09±14.71,49.76±12.4,33.96±7.2,69.1±16.57 pg/mL,respectively)and the fertilecontrol group(49.26±31.32 pg/mL).The CBVAD group showed the lowest seminal plasma mean level of beta-endorphin.Testicular contribution of seminal beta-endorphin was estimated to be approximately 40%.Seminal beta-endorphin showed significant correlation with the sperm concentration(r=0.699,P=0.0188)and nonsignificantcorrelation with its serum level(r=0.375,P=0.185)or with the sperm motility percentage(r=0.470,P=0.899).Conclusion:The estimation of beta-endorphin alone is not conclusive to evaluate male reproduction as there aremany other opiates acting at the hypothalamic pituitary gonadal axis.(Asian J Androl 2006 Nov;8:709-712)     

Heme oxygenase enzyme activity in seminal plasma of oligoasthenoteratozoospermic males with varicocele

This work aimed to assess seminal plasma heme oxygenase (HO) enzyme activity in oligoasthenoteratozoospermia (OAT) males with varicocele. Ninety‐three men were divided according to their sperm count and clinical examination into: healthy fertile controls (n = 34), OAT without varicocele (n = 37) and OAT associated with varicocele (n = 22). They were subjected to semen analysis and estimation of seminal plasma HO enzyme activity in the form of bilirubin concentration. Seminal plasma HO enzyme activity decreased significantly in OAT cases compared with controls. Seminal plasma HO in OAT cases associated with varicocele decreased significantly compared with OAT cases without varicocele and healthy controls (mean ± SD; 109.2 ± 29.5, 283.6 ± 88.4, 669.5 ± 236.1 nMol bilirubin/mg ptn/min, P < 0.001). There was positive correlation between seminal plasma HO enzyme activity and sperm concentration, per cent of motile spermatozoa, number of motile spermatozoas ml^?1 and significant negative correlation with sperm abnormal forms per cent. It is concluded that varicocele has a negative impact on seminal HO enzyme activity. Therefore, improved seminal picture after correcting varicocele repair might be related, in part, to improved HO action(s).     

男性不育患者精浆内细胞因子研究

为了研究精浆内细胞因子对男性生育能力的影响,通过对男性不育患者和正常生育男性精浆内细胞因子含量的测定（ Ｅ Ｌ Ｉ Ｓ Ａ） ,发现少精和无精不育患者伴有生殖系特异感染（ 支原体、衣原体、淋球菌） 时细胞因子（ Ｉ Ｌ１ , Ｔ Ｎ Ｆα, Ｉ Ｌ６） 的水平明显高于无生殖系特异感染的不育患者和正常男性,差异有极显著性（ Ｐ＜ ０ ．００１） ,显示在炎症特别是性传播疾病时所产生的细胞因子与男性不育有密切相关性,说明精浆内明显表达不同的细胞因子可能参与影响精子功能,是导致男性不育的原因之一。     

少精,无精症者精浆表皮生长因子分析

按ＷＨＯ精液参数标准分析精液常规后,根据精子密度＞ ２０,１１ ～２０,１～１０（ ×１０６ 精子／ｍｌ） 和无精子将研究对象相应分为Ⅰ、Ⅱ、Ⅲ、Ⅳ组,每组２０ 例。用放射免疫法测精浆ＥＧＦ,并与有关参数进行相关分析。结果显示：Ⅰ、Ⅱ、Ⅲ、Ⅳ组精浆ＥＧＦ浓度分别是３ ．４４ ±１ ．０９ ,４．２２ ±１ ．１６,４．４１ ±１．７４ ,４ ．３３ ±１ ．４７（ｎｇ／ｍｌ） ,Ⅰ组显著低于Ⅱ、Ⅲ、Ⅳ组（Ｐ＜ ０．０５）;１ 次射精的ＥＧＦ水平分别是８．０１±３．３１,１０．４１±４．６１,９ ．７５ ±４ ．０７ ,９ ．６６±３ ．９５（ｎｇ／１次射精）,组间比较没有显著差异;相关分析表明,精浆ＥＧＦ浓度（ｎｇ／ｍｌ） 与１ 次射精精子数呈显著负相关关系（ｒ＝ － ０．２５４８,ｎ＝ ６０ ,Ｐ＜０ ．０５）,而在Ⅱ、Ⅲ组中,１ 次射精ＥＧＦ水平与精子计数呈显著正相关关系（ｒ＝ ０．３７１６ ,ｎ＝４０,Ｐ＜ ０．０２） ,精浆α糖苷酶、果糖、精子顶体酶无相关关系。     

精液液化异常与精浆脂蛋白a的检测和分析

目的:通过对男性不育症患者精液液化异常的精浆进行脂蛋白a检测和分析,探讨精浆脂蛋白a对精液液化异常的影响及临床意义。方法:按照WHO《人类精液检查与处理实验室手册》第5版标准,对101例精液液化异常者、26例精液液化正常对照者的精液进行常规分析,再加糜蛋白酶于精液中置于37℃孵育30 min,待挑起完全无丝状物后离心取上层精浆检测脂蛋白a。结果:在101例精液液化异常者中精浆脂蛋白a水平[(526.2±243.5)mg/L]明显高于26例精液液化正常对照组精浆脂蛋白a水平[(296.9±105.2)mg/L](P<0.01)。结论:机体脂蛋白a具有抑制纤维蛋白溶解功能,精液液化异常中纤维蛋白的溶解延迟可能与精浆脂蛋白a水平增高有一定相关性。临床诊断精液液化异常引起的男性不育症时,应考虑精浆脂蛋白a水平的影响。