男性不育患者精液质量与精子顶体酶活性关系分析

目的:分析男性不育患者精液参数与精子顶体酶活性变化,探讨精液质量与顶体酶活性的关系。方法:对214例男性不育患者的精液作精子顶体酶活性、弹性蛋白酶、果糖、α葡糖苷酶、锌、酸性磷酸酶、精子尾部低渗肿胀试验检测,同时精子质量检测仪作精液分析。以检出精子顶体酶活性正常的(48.2~218.7μIU/106精子)111例作为对照组,与顶体酶活性异常(<48.2μIU/106精子)的103例精液参数作对比分析。结果:两组精液参数的精子密度、精子活动率、a+b级精子百分率、精子尾部低渗肿胀试验差异均有非常显著性(P<0.001)。弹性蛋白酶差异有显著性(P<0.05)。果糖、α葡糖苷酶差异亦有显著性(P<0.05)。精液量、锌、酸性磷酸酶差异无显著性(P>0.05)。结论:精子顶体酶活性与精液质量关系密切,精子顶体酶活性是反映精液质量的一项可靠指标。     

334例男性不育症患者精子DNA完整性与精液常规参数间的相关性分析

目的探讨男性不育症患者精子DNA完整性与精液常规参数的相关性,研究精子DNA完整性在评估男性生育力方面的应用价值。方法回顾性分析2015年1月至2016年12月于西北妇女儿童医院生殖中心男性不育门诊就诊的334例患者的临床资料,按照精子DNA碎片指数(DFI)不同进行分组,Ⅰ组(192例):DFI≤15%;Ⅱ组(98例):15%DFI30%;Ⅲ组(44例):DFI≥30%。比较各组患者的精液常规参数(精子浓度、前向运动精子率、正常形态率、年龄和禁欲时间),分析DFI与精液常规参数的相关性。结果不同DFI组间比较,年龄、精子浓度及正常形态率无统计学差异(P0.05),但禁欲时间和前向运动精子率组间差异有统计学意义(P0.05)。DFI与前向运动精子率和正常形态率呈显著负相关(r分别为-0.457、-0.147,P0.05),与禁欲时间呈显著正相关(r=0.222,P0.05),与年龄及精子浓度无明显相关性(P0.05)。结论精子DNA完整性与精液常规参数(前向运动精子率、正常精子形态率、禁欲时间)具有一定的相关性,精子DNA完整性检测可作为精液常规分析的补充。     

苏州地区2640例男性不育症患者精液质量分析

目的:研究苏州地区男性不育症患者精液质量状况。方法:采用计算机辅助精液分析技术,检测2 640例以不育为主诉的男性精液标本的质量。结果:2 640份精液标本中,各项指标均正常的精液占27.35%;a+b级精子百分率异常者占47.35%(1 250/2 640);精子活动率异常者占42.39%(1 119/2 640)。精子活动率和a+b级精子百分率随患者年龄增加呈降低趋势,尤以40岁以上男性降低更为明显。弱精子症和少精子症发病率分别为37.31%(985/2 640)和8.94%(236/2 640),且30岁以上不育男性随年龄增加有增高趋势。随着精子活动率和精子浓度的下降,精子的9项运动参数VCL、VSL、VAP、MAD、LIN、STR、WOB、ALH、BCF明显降低。结论:苏州地区不育男性主要表现为精子活动率降低,尤其是a+b级精子百分率的降低。由于精子活动率、活力以及少精子症和弱精子症的发病率均与年龄有关,提示男性亦有合适的生育年龄。     

精子DNA碎片指数与精液参数的相关性分析

目的:探讨精子DNA碎片指数(DFI)与精液参数的关系,并评价其在男性精子质量评估中的应用价值。方法:收集9 694例男性精液标本,采用流式细胞仪辅助的精子染色质结构分析法(SCSA)进行精子DFI和高DNA着色性(HDS)检测,根据WHO《人类精液检查与处理实验室手册》(第5版)精液参数参考值标准分为正常组和异常组,异常组再依据精子浓度、精子总活率和前向运动精子百分率异常程度分为A组:精子浓度(11.3～14.0)×10~6/ml,精子总活率30%～39%,前向运动精子百分率24%～31%;B组:精子浓度(7.5～11.2)×10~6/ml,精子总活率20%～29%,前向运动精子百分率16%～23%;C组:精子浓度(3.8～7.4)×10~6/ml,精子总活率10%～19%,前向运动精子百分率8%～15%;D组:精子浓度(0～3.7)×10~6/ml,精子总活率0～9%,前向运动精子百分率0～7%;按照不同DFI值分为15%、15%～30%和30%3组。分析DFI与精液参数的关系。结果:正常组DFI均显著低于异常组及其亚组(P均0.01);各异常亚组(A、B、C、D组)随着精子指标的降低DFI逐渐升高(P0.01)。根据DFI分组,发现DFI与年龄、禁欲时间、精液体积、精液pH、精子浓度、精子总活率、前向运动精子百分率、正常形态精子百分率以及HDS的差异均有统计学意义(P均0.01);相关性分析表明DFI与年龄、禁欲时间、精液体积和HDS存在正相关(r分别为0.15、0.10、0.05、0.15,P均0.01),而与精液pH、精子浓度、精子总活率、前向运动精子百分率和正常形态精子百分率存在负相关(r分别为-0.06、-0.27、-0.53、-0.52、-0.16,P均0.01)。多重线性回归分析表明精子总活率、精子浓度、年龄、禁欲时间和精液pH是与DFI相关的5个重要相关变量,标准化回归系数分别为-0.47、-0.19、0.12、0.07、-0.04,P均0.01。结论:DFI与精液参数存在中等相关性,二者可协同评估男性精子质量。     

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。     

男性不育患者精子DNA中8—羟基脱氧鸟苷水平及与精液参数的相关性

本文应用高压液相 电化学 (HPLC EC)技术对 5 2名男性不育患者精子DNA中 8 羟基脱氧鸟苷 (8 OHdG)进行测定 ,同时检测精液量、精子密度、精子活率、正常形态精子率 ,及头部精子畸形等精液参数 ,并进行相关性分析。结果显示 ,当精子DNA中 8 OHdG超过 10 .5 0时 ,其头部畸形率明显增加。精子DNA中 8 OHdG与精液量 (r =- 0 .4 7,P <0 .0 0 1)、正常形态精子率 (r=- 0 .36 ,P <0 .0 1)成一定的负相关 ,且与头部畸形精子率成正相关 (r =0 .6 9,P <0 .0 0 1)。结果提示 ,精子DNA中 8 OHdG与精液质量存在一定的相关性 ,表明精液质量的下降与精子DNA的损伤存在一定联系 ,而内源及外源性活性氧是可能的原因之一 ,其可能的机制尚需进一步研究。     

不同精液处理方法对精子动态参数和受孕率的影响

1 临床资料 不孕不育症78对,女方平均年龄29.1岁,男方平均年龄31.1岁,其中因排卵障碍经促排卵治疗后所致宫颈粘液不良者34例,阴道炎、宫颈炎所致不孕者14例,少精、弱精症者12例,免疫因素不育者11例,不明原因者7     

射精频率对精液参数的影响

射精频率对精液参数的影响王信心吴周亚作者对１０名健康生育力男子和１０例少弱精症不育男子连续一周采集精液标本进行观察，以探讨射精频率对精液参数的影响。一、材料与方法１０名健康生育力男子，年龄２４～３０岁，均已生育有正常子女，性功能和精液常规检查正常（Ａ...     

精浆弹性蛋白酶水平与精液主要参数和精子功能的相关性分析

目的:探讨精浆弹性蛋白酶与精液主要参数和指标的关系。方法:用酶联免疫吸附法(ELISA)检测精浆中的弹性蛋白酶,按照WHO人类精液实验室手册要求进行精液常规分析、精子形态分析,检测精子顶体酶活性、精浆抗体(AsAb)、解脲支原体等,分析弹性蛋白酶与男性不育相关因素的关系。结果:209例男性不育患者中,43例患者精浆弹性蛋白酶≥290ng/ml,设为炎症组;166例患者精浆弹性蛋白酶<290ng/ml,设为非炎症组。炎症组的精子密度、精子活动率、a+b级活力精子率、精子顶体酶阳性率均低于非炎症组(P<0.05);而精子畸形率、精浆抗体(AsAb)、解脲支原体阳性率均高于非炎症组(P<0.05)。两组的精液量、PH值和液化时间差异无统计学意义。结论:精浆弹性蛋白酶水平与精液质量有密切的关系,生殖道感染是导致男性不育的重要原因。     

1000例不育病人精液常规参数回顾性分析

精液常规分析（seminalfluidassay，SFA）各项参数的参考值，由于人种、检查对象、方法、测试工具、报告者的不同，而难以统一。本文根据1994年WHO编发的《人类精液及精子-宫颈粘液相互作用实验室检验手册）（第3版）[1]要求进行精液的采集和检验，同时结合我国国情，参照黄宇烽主编的《男性病实验诊断手册》[2]进行操作，并采用国产Macro精子计数板进行精子密度和精子活动率测定，从前来就诊的病史完整的不育症病人资料中随机抽取1000例精液常规的几项参数进行统计和回顾性分析，并与486例正常男性精液常规参数相比较，企望在检测手段尽…     

Relationship between age and semen parameters in men with normal sperm concentration: analysis of 6022 semen samples

This study evaluates retrospectively the relationship between age and semen parameters among men with normal sperm concentration. It was based on computerized data and performed in an Academic Fertility and IVF Unit. Six thousand and twenty-two semen samples with sperm concentrations of >or=20 x 10(6) ml(-1) were examined according to WHO criteria and analysed in relation to patients' age. For each age group, mean values +/- SD of semen volume, sperm concentration, percentage of motile spermatozoa, normal morphology, acrosome index, total sperm count/ejaculate, total motile sperm count/ejaculate and sexual abstinence duration were examined. A peak semen volume of 3.51 +/- 1.76 ml(-1) was observed at age >or=30 to <35 years and a lowest volume of 2.21 +/- 1.23 ml(-1) was observed at age >or=55 years (P<0.05). Sperm motility was found to be inversely related to age with peak motility of 44.39 +/- 20.69% at age <25 years and lowest motility of 24.76 +/- 18.27% at age >or=55 years (P<0.05). A reduction of 54% was observed for total motile sperm, between values of 103.34 +/- 107 x 10(6) at age >or=30 to <35 years and 46.68 +/- 53.73 x 10(6) (P<0.05) at age >55 years. A statistically significant and inverse relationship was observed between semen volume, sperm quality and patient age, in spite of prolonged sexual abstinence duration. Top sperm parameters were observed at age >or=30 to <35 years, while the most significant reduction in sperm parameters occurred after the age of 55 years.     

不育男性精子染色质结构与精液常规参数的关系

目的 研究不育男性精子染色质结构参数与精液常规参数的关系.方法 采集36例男性不育患者和18例健康对照者的精液标本,用TUNEL法检测精子DNA碎片化,CMA3染色法检测精子染色质包装质量,按照世界卫生组织标准(1999)检测精液常规参数.结果 不育组的精子TUNEL阳性率和CMA3阳性率均显著高于健康对照组,差异具有统计学意义(P＜0.05),精液常规参数正常的不育男性精子TUNEL阳性率和CMA3阳性率也显著高于健康对照组,差异具有统计学意义(P＜0.05),精子TUNEL阳性率和CMA3阳性率与精液常规参数之间具有显著的相关性(P＜0.05).结论 不育男性的精子染色质结构检测结果与健康男性存在显著差异,精子染色质结构检测可提供反映男性生育能力的信息.     

Twenty‐four hours abstinence and the quality of sperm parameters

Patients with abnormal basic parameters and mainly low concentration can be expected to have improved parameters on the second consecutive day. As the number of abnormal basic parameters increases, the more significant improvement can be expected. On the other hand, patients with normal or few abnormal basic semen parameters show a decrease after 24 h. Furthermore, the magnitude of change to both directions in TMC and TNMC values in these patients emphasises these conclusions. Based on the type and mainly the combined number of abnormal basic semen parameters, insemination strategy can be tailored to male fertility patients. Those with abnormal concentration or multiple abnormal semen parameters may benefit from 2 consecutive day intercourses or inseminations or a short period of abstinence due to a significant improvement in the semen parameters on second day insemination. In those with normal basic semen parameters, a reduction in semen quality is expected after 24 h, and a single‐timed insemination and longer abstinence can be recommended.     

Evaluation of reference values of standard semen parameters in fertile Egyptian men

The reference values of human semen, published in the WHO's latest edition in 2010, were lower than those previously reported. The objective of this study was to evaluate reference values of standard semen parameters in fertile Egyptian men. This cross‐sectional study included 240 fertile men. Men were considered fertile when their wives had recent spontaneous pregnancies with time to pregnancy (TTP) ≤12 months. The mean age of fertile men was 33.8 ± 0.5 years (range 20–55 years). The 5th percentiles (95% confidence interval) of macroscopic semen parameters were 1.5 ml for volume and 7.2 for pH. The 5th percentiles of microscopic parameters were 15 million/ml for sperm concentration, 30 million per ejaculate for total sperm count, 50% for total motility, 40% for progressive motility, 62% for vitality, 4% for normal sperm forms and 0.1 million/ml for seminal leucocyte counts. In conclusion , fertile Egyptian men had higher reference values of sperm total motility, progressive motility and vitality, and lower reference values for total sperm counts as compared to those determined by the latest edition of the WHO laboratory manual in 2010. Other semen parameters were identical to those defined by the WHO 2010 manual.     

The impact of body mass index on semen parameters in infertile men

This hospital‐based, prospective study was conducted to evaluate the relationship between body mass index (BMI) and various semen parameters in infertile men. A total of 439 men presented for infertility evaluation were assessed by basic infertility evaluation measures including semen analysis and BMI calculation. The main outcome measure was the relationship between BMI groups [BMI: 18.5–24.9 kg/m² (normal weight), 25–29.9 kg/m² (overweight) and ≥30 kg/m² (obese)] and different semen parameters [volume, concentration, motility and morphology]. The mean BMI was 29.67 ± 5.89. Most of patients (82.91%) were overweight or obese. The 3 BMI groups were comparable in semen parameters (P > 0.05). BMI had a negative correlation with various semen parameters. However, this correlation was significant only with sperm concentration (P = 0.035). We concluded that sperm concentration was the only semen parameter which showed significant reduction with higher BMI in infertile men.     

Detection of DNA fragmentation in human spermatozoa: correlation with semen parameters

To determine the prevalence of high levels of sperm DNA damage among infertile men with normal and abnormal semen parameters, 90 patients were subdivided into the following three groups. Group A ( n  = 30): men with normal semen parameters who acted as the controls. Group B ( n  = 30): asthenozoospermic men and group C ( n  = 30): teratozoospermic men, suffering from male infertility. DNA damage was evaluated by the rate of DNA fragmentation index (DFI) as assessed by the terminal desoxynucleotidyl transferase-mediated dUTP nick-end labelling assay. It was found that the difference was not significant between the percentage of DFI in patients with asthenozoospermia and the normospermic men (9.46% ± 8.68 and 8.19 ± 6.84 respectively, P- value not significant). The patients with teratozoospermia showed a significantly higher percentage of DNA fragmentation compared with the controls (respectively 21.37 ± 17.26% and 8.19 ± 6.84%, P  < 0.001). There was a positive correlation between abnormal sperm morphology and the DFI ( r  = 0.44, P  < 0.01) in group C. It is concluded that the impairments of sperm parameters were associated with an increase of DNA fragmentation; this association was strictly related to atypical forms.     

巨噬细胞对不育男子精液质量的影响

本文应用免疫细胞化学方法,研究正常生育男子、不育男子精液中巨噬细胞水平变化,同时,分析精液质量参数.结果显示不育组精液巨噬细胞显著增高;巨噬细胞阳性组与阴性组比较,活动率,活动力,尾部肿胀率均显著降低,畸形率明显增高;尾部肿胀率,畸形率与巨噬细胞含量分别呈负相关和正相关.研究提示在男性不育症患者精液中巨噬细胞有较高发生率,精液巨噬细胞数量变化可影响精液质量,造成男性不育的机理有待进一步研究.     

Time to improvement of semen parameters after microscopic varicocelectomy: When it occurs and its effects on fertility

While ligation of clinical varicoceles has been clearly shown to improve semen parameters in subfertile men, evidence describing when to expect improvement and the potential effects on fertility following surgery are sparse. A chart review was undertaken to identify men who had undergone a microscopic subinguinal varicocelectomy from January 1, 2006, to June 30, 2018. Semen analyses were reviewed to determine if a significant improvement occurred post-operatively and when the improvement was seen. Pregnancy data were reviewed to determine if fecundity rates were affected by semen parameter improvement or the interval at which improvement occurred. A total of 170 men met criteria for inclusion, including pregnancy data on 140. 69.4% of patients experienced a significant improvement in total progressive sperm count (TPSC), 78.8% of which occurred after 3 months. The overall pregnancy rate was 40.7%. When comparing men whose TPSC improved to those who did not, there was an odds ratio (OR) of 5.89 (2.28–15.28, 0.0003) for achieving pregnancy, while an OR of 2.05 (0.80–5.28, 0.13) was found when comparing pregnancy rates between early and late improvement in semen parameters. Pregnancy rates were not affected by time to improvement, but were higher in men who had a significant improvement in TPSC after surgery.     

精液白细胞含量变化对精子顶体酶活性的影响

目的观察精液白细胞含量变化对精子顶体酶活性的影响。方法在抗炎治疗前后采用正甲苯胺蓝过氧化物酶法对精液中白细胞进行定量测定,并与精子顶体酶活性进行相关性分析。结果383例男性不育就诊者中有106例精液白细胞＞1×10~6个/ml,其精子项体酶活性(12.81±9.23)μIU/10~6精子；经抗炎治疗后75例精液白细胞≤1×10~6个/ml,设为有效组,其精子顶体酶活性(20.65±10.05)μIU/10~6精子,余31例精液白细胞＞1×10~6个/ml,设为无效组,其精子顶体酶活性(13.26±9.81)μIU/10~6精子。治疗后两组精子顶体酶活性有显著性差异(P＜0.01)。结论精液白细胞含量变化可影响精子顶体酶活性,精液白细胞症经抗炎治疗改善后可提高精子顶体酶活性。