少弱精子症与精浆附性腺标志物的相关性分析

目的分析少弱精子症患者精液参数与精浆附性腺标志物的相关性,探讨附性腺功能对男性生育力的影响。方法采用精液常规、精子形态、精浆附性腺标志物分析方法,检测正常供精者和门诊就诊的少弱精子症患者的精液相关指标。结果少弱精子症组正常形态精子百分数、精子穿透功能、精浆中性α-糖苷酶显著低于正常对照组。相关分析结果显示,少弱精子症患者组,精液量与精子活动率呈负相关(r=-0.415,P<0.05),精子数与形态呈正相关(r=0.393,P<0.05)。结论少弱精子症患者同时存在不同程度的附睾功能障碍,精子功能下降,精子畸形率显著升高,睾丸生精功能越低下,精子畸形发生率越高。     

少弱精子症和正常生育男性精液中尿激酶及其受体含量的研究

目的:通过研究精子正常和异常男性精浆和精子中尿激酶及受体含量差异,以了解尿激酶及受体与男性生育力的关系。方法:采用双抗体夹心ELISA法测定22例正常生育男性和44例少弱精子症男性精浆和精子中尿激酶及受体的含量。结果:①正常男性精浆尿激酶平均含量为(4 803.69±602.78)mU/L,与少弱精子症组[(4 061.35±736.23)mU/L]相比,差异有显著性(P<0.01)。正常生育男性精子尿激酶平均含量为(30.29±3.16)mU/106个精子,与少弱精子症组[(20.51±4.2)mU/106个精子],差异有显著性(P<0.01)。②正常生育男性精子尿激酶受体平均含量为(12.97±3.11)mU/106个精子相比,与少弱精子症组[(6.09±1.45)mU/106个精子]相比,差异有显著性(P<0.01)。③精子和精浆中尿激酶含量和精子活率和活力呈显著正相关。结论:尿激酶和男性生育力相关,少弱精子症和正常生育男性精液中尿激酶及其受体含量存在差异。     

生精片对男性少弱精子症患者精液参数的影响及作用机制研究

目的:观察生精片治疗男性少弱精子症患者的临床有效性,并对其作用机制进行探讨。方法:选取少弱精子症患者120例,采取随机对照研究的方法,治疗组口服生精片,对照组服用维生素E,服用12周后,观察治疗前后两组精子浓度、精子活力及正常形态精子百分率,血清FSH、T、LH水平,DNA碎片指数,低渗肿胀精子百分率,精浆弹性蛋白酶、α-葡糖苷酶、精子顶体酶、果糖及精浆锌等指标变化。结果:生精片能显著改善精子浓度、活力和形态(P<0.01),血清FSH水平明显降低,T明显升高(P<0.01),DNA碎片指数明显降低,低渗肿胀精子百分率显著升高,弹性蛋白酶明显降低,α-葡糖苷酶、精子顶体酶、果糖、精浆锌等水平明显升高。结论:生精片通过多层次、多环节、多途径改善少弱精子症患者的精液参数,具有良好的临床疗效。     

弱精子症患者精子锌稳态蛋白、GPR39和ANO1 mRNA的表达变化及其临床意义

目的:探究锌稳态相关蛋白、G蛋白偶联受体39(GPR39)及ANO1 mRNA在弱精子症精子中的表达变化,并分析其与精子运动能力的相关性。方法:选取2022年6月至2023年4月我中心收集的弱精子症患者精液标本(PR+NP<40%,PR<32%,精子浓度>15×10⁶/ml)40例,正常精液标本(PR+NP≥40%,PR≥32%,精子浓度>15×10⁶/ml)42例。通过CASA检测精液常规参数及精子活力,测量两组精浆锌的含量,运用实时荧光定量PCR(RT-qPCR)对两组精子锌转运蛋白(ZIP13、ZIP8、ZNT10)、金属硫蛋白(MT1G、MT1、MTF)、GPR39和钙依赖性氯离子通道蛋白(ANO1)表达进行定量检测;运用激光共聚焦检测精子中的游离锌分布;运用免疫荧光染色观察精子中GPR39、MT1蛋白的表达;进一步采用Spearman秩相关分析其与精液参数的相关性。结果:与正常组相比,弱精子症组精浆锌的浓度无明显差异(P>0.05),弱精子症组精子游离锌水平明显降低(P<0.05);RT-qPCR...     

特发性弱精子症患者血清及精浆瘦素水平与精子活动力的关系

目的 通过研究特发性弱精子症(idiopathic asthenospermia,IAS)患者以及精液参数正常人群的血清、精浆瘦素,探讨瘦素与精子运动能力的关系.方法 IAS患者54例及精液参数正常者30例作为对照.常规CASA精液分析,放射免疫法检测血清及精浆瘦素.结果 排除体重指数差异的影响,(IAS患者与精液参数正常者体重指数比较差异无统计学意义,P>0.05),IAS患者血清瘦素水平与正常对照差异无统计学意义(P>0.05),而IAS患者精浆瘦素显著高于正常对照(P<0.05);精子活动率及精子活力与血清瘦素水平之间均无显著相关性(r=-0.213,P=0.249及r=-0.167,P=0.154),IAS患者的精子活动率及活力与精浆瘦素水平显著负相关(r=-0.31,P=0.034及r=-0.47,P=0.025).结论 IAS患者精浆瘦素水平显著增高,可能对精子运动能力有调控作用.     

口服锌硒宝对少弱精子症患者精子质量的影响

目的 :探讨微量元素锌和硒对少弱精子症患者精子质量的影响。　方法 :34例少弱精子症患者口服锌硒宝 ,5片 /次 ,3次 /d ,连服 90d。每个月末行计算机辅助精液分析 (CASA)。　结果 :服用 6 0d和 90d后 ,患者的精子质量明显改善 ,显效 5例 (14 .7% ) ,有效 2 5例 (73.5 % ) ,无效 4例 (11.8% )。　结论 :补充锌和硒可明显改善少弱精子症患者的精子质量。     

聚精丸对弱精子症患者精浆一氧化氮、超氧化物歧化酶的作用机制研究

目的:研究聚精丸治疗弱精子症的可能机制,为寻找其作用机制提供新的线索。方法:选择弱精子症患者34例,给予聚精丸治疗3个月,治疗前后分别作精液常规及精浆一氧化氮(NO)含量和超氧化物歧化酶(SOD)活性测定,观察治疗前后精液常规参数以及NO含量、SOD活性的变化。结果:与治疗前相比,治疗后精液常规参数均有显著性改变(P<0.05或P<0.01);精浆NO值无明显变化(P>0.05);而SOD活性由(95.97±20.75)μg/L下降为(76.14±19.99)μg/L(P<0.05)。弱精子症治疗前精浆NO含量和SOD活性之间呈负相关(r=-0.246,P<0.05)。结论:聚精丸可以显著改善弱精子症患者精子活动率,但聚精丸的良好疗效可能并不体现在精浆NO含量和SOD活性值的改变。     

少弱精子症患者精子蛋白质组学的生物信息学研究

目的:采用TMT技术筛选少弱精子症患者精子差异蛋白,并通过生物信息学分析,旨在为少弱精子症的研究提供研究方向和理论依据。方法:收集并随机取30例少弱精子症患者和30例正常男性的精液标本,运用TMT技术蛋白质组学分析筛选出少弱精子症患者精子差异表达的蛋白质,并进行基因本体(GO)分析和KEGG信号通路生物信息学分析。结果:通过蛋白质组学技术获得差异蛋白1 199种,其中上调蛋白663种,下调蛋白536种。GO分析结果初步提示差异蛋白主要聚集在核糖体成分、核糖体功能方面。KEGG信号通路分析发现差异蛋白涉及244条信号通路。结论:少弱精子症患者精子差异蛋白涉及复杂的生物过程、分子功能和信号通路,并且蛋白质组学筛查与其生物信息学分析有助于少弱精子症发病机制的研究。     

少精子症患者血清、精浆中游离睾酮水平的测定及意义

目的 :通过测定少精子症患者血清、精浆中游离睾酮 (FT)水平 ,分析血清、精浆FT与少精子症的关系。　方法 :正常对照组 (n =4 4 )、少精子症组 (n =4 4 )男性于上午 8:0 0～ 10 :0 0留取血标本 ;正常对照组 (n =30 )、少精子症组 (n =37)同时留取精液。男性精液常规分析判断精子密度 ,放射免疫分析法测定血清、精浆中FT水平。　结果 :少精子症患者血清中FT浓度为 [(94 .88± 4 2 .0 4 )pmol/L],与正常对照组 [(97.5 0± 4 6 .96 )pmol/L]相比差异无显著性 (P >0 .0 5 ) ,但少精子症患者精浆中FT浓度 [(0 .5 2± 0 .4 4 ) pmol/L]显著低于正常对照组 [(2 .0 1±0 .32 )pmol/L],P <0 .0 1。　结论 :精浆中FT的测定较早反映睾丸的功能 ,有利于少精子症患者的早期诊断和治疗。     

无精子症和严重少精子症患者Y染色体微缺失、染色体核型和性激素结果分析

目的:研究男性无精子和严重少精子症患者Y染色体微缺失、染色体核型和性激素的相关性。方法:收集无精子症患者63例、严重少精子症患者49例和精液参数正常生育男性60例,抽取外周血分别检测Y染色体微缺失、染色体核型和性激素水平。结果:63例无精子症患者中,7例Y染色体微缺失,微缺失的发生率为11.11%(7/63);49例严重少精子症患者中,4例Y染色体微缺失,微缺失的发生率为8.16%(4/49),与正常精液组(未发现Y染色体微缺失)比较均有统计学差异(P<0.05)。无精子症患者中,染色体核型异常率为9.52%(6/63),而正常生育男性精液组和严重少精子症患者中均未发现异常染色体核型。与正常生育男性精液组[FSH(3.88±2.21)IU/L;LH(4.63±1.51)IU/L]比较,无精子症[FSH(20.41±19.34)IU/L;LH(11.44±9.48)IU/L]和严重少精子症[FSH(8.88±7.04)IU/L;LH(6.78±3.85)IU/L]不育患者FSH和LH水平显著升高(P<0.05)。结论:无精子症和严重少精子症不育患者有必要进行遗传学和性激素检查,便于早期诊断和治疗。     

Relationship between Zinc Concentrations in Seminal Plasma and Various Sperm Parameters

The zinc concentration in seminal plasma from 98 infertile male patients and 8 fertile males was measured. The zinc concentration of the seminal plasma in azoospermic and oligoasthenozoospermic patients was significantly lower than that in the other groups (each, p<0.05). The seminal plasma zinc concentration in asthenozoospermic males was significantly higher than that in any other group (p<0.05). There was a positive correlation of zinc concentration with sperm concentration (r=0.33, p<0.05) and with sperm motility (r=0.22, p<0.05), while there was no correlation with sperm morphology. A correlation between zinc concentration and plasma testosterone concentration was observed (r=0.24, p<0.05). It is concluded that excessively high zinc concentration is apparently related to defective motility in asthenozoospermic patients, even though adequate seminal plasma content of the element is required for normal sperm function.     

生育与不育男性精浆总抗氧化能力分析

目的:分析生育与不育男性精浆中总抗氧化能力(TAC)及其在男性生育中意义。方法:225例男性不育患者分为6组,分别为:梗阻性无精子症组(n=10),非梗阻性无精子症组(n=42),少精子症组(n=20),弱精子症组(n=78),少弱精子症组(n=57),以及正常精子症组(n=18)。28例正常生育男性作为对照(生育组)。分别采用计算机辅助精液分析(CASA)系统进行精液参数分析,采用比色法检测精浆TAC水平。结果:生育组男性精浆TAC为(19.82±6.33)U,梗阻性无精子症组(1.71±1.33)U,非梗阻性无精子症组(12.73±9.44)U,少精子症组(10.85±6.64)U,弱精子症组(13.88±8.24)U,少弱精子症组(11.20±7.02)U,正常精子症组(18.07±8.73)U;与生育组精浆TAC[(19.82±6.33)U]相比,在各不育症组中,除正常精子症组精浆TAC与生育组差异无显著性外,其余各组均显著低于生育组(P<0.01)。精浆TAC与精子密度(r=0.182,P<0.05)和a级精子(r=0.150,P<0.05)呈显著正相关。结论:精浆中TAC水平与男性不育密切相关,精浆中过低的TAC水平可能是引起男性不育的病因之一。     

The presence of a motility inhibitor within spermatozoa may explain the poor sperm motility of some infertile men

The presence of motility inhibitors in seminal plasma and within spermatozoa from control and infertile men with poor sperm motility was investigated using demembranated reactivated human spermatozoa. No difference was found in the inhibitory capacities in seminal plasma of patients with poor sperm motility (less than 50%) when compared with that of fertile controls with motility above 50%. No correlation was observed between inhibitory capacity and sperm motility. However, when extracts of spermatozoa from these patients were tested for the presence of inhibitor, it was observed that three of nine patients had an inhibitor in their sperm extract. By contrast, all sperm extracts from fertile control subjects were devoid of inhibitor. It was concluded that the presence of a motility inhibitor in seminal plasma does not explain the poor sperm motility observed in patients. The presence of a motility inhibitor within spermatozoa, however, may represent an important factor in the etiology of the poor sperm motility observed in some patients.     

Analysis of lipid peroxidative levels in seminal plasma of infertile men by high-performance liquid chromatography

For the purpose to evaluate the significance of lipid peroxidative products on male infertility, the levels of malondialdehyde (MDA), which is one of the final products of lipid peroxidation in seminal plasma, were determined. Ninety-three male infertile patients were divided into obstructive azoospermic group (12 cases), non-obstructive azoospermic group (15 cases), oligozoospermic group (21 cases), asthenozoospermic group (19 cases), oligoasthenozoospermic group (16 cases) and oligoasthenoteratozoospermic group (10 cases). Eighteen fertile males were included in the control group. MDA concentrations of seminal plasma in the fertile and infertile men were detected by high-performance liquid chromatography (HPLC). The results showed that the concentration of MDA in seminal plasma differed significantly between the control group and all the infertile groups (P < 0.01) except the obstructive azoospermic group, between the oligoasthenozoospermic group and the oligozoospermic and asthenozoospermic groups (P < 0.01), and between the oligoasthenoteratozoospermic group and the oligozoospermic and asthenozoospermic groups (P < 0.01). MDA concentration of seminal plasma in the oligoasthenoteratozoospermic group differed significantly from that in the oligoasthenozoospermic group (P <0.05). The results suggested that detection of MDA concentrations in seminal plasma by HPLC has an indicative value on the diagnosis of male infertility induced by overproduction of reactive oxygen species in male reproductive system.     

Bradykininase and protease inhibitors in seminal plasma of fertile and infertile men.

The level of protease acrosin in the seminal plasma of oligozoospermic men was significantly higher than that of normozoospermic men. The amount of bradykininase in the seminal plasma was very high in both normozoospermic and oligozoospermic patients. When the acrosin and kininase content was referred to one million spermatozoa, seminal plasma kininase was significantly enhanced in oligozoospermic men, while the acrosin activity was similar in normozoospermic fertile men and infertile men. Human seminal plasma inhibitor I (HUSI I) increased along with sperm count. Human seminal plasma inhibitor II (HUSI II) showed no change. The motility of spermatozoa was depressed in oligozoospermic patients.     

Antioxidant activity of seminal plasma in fertile and infertile men

This study was conducted to evaluate and compare the total antioxidant capacity among fertile and infertile men. Thirty infertile patients and 20 fertility-proven healthy donors with normal sperm analysis were included in the study. Total antioxidant capacity, zinc and fructose levels of seminal plasma, and various sperm parameters were compared among fertile controls and idiopathic infertility patients prospectively. The mean antioxidant capacity of fertile controls (2.02 +/- 0.16 mmol/L) was significantly higher than that of the infertile patients group (1.78 +/- 0.23 mmol/L) (p < .01). Furthermore, asthenozoospermic and asthenoteratozoospermic groups had significantly lower mean antioxidant values (1.73 +/- 0.11 and 1.64 +/- 0.13, respectively) when compared to fertile control group (p < .01). The mean fructose level was significantly lower in the fertile control group and mean zinc level was significantly lower in the entire infertile group. On the other hand, antioxidant capacity is positively correlated to sperm motility (p = .001). Decreased antioxidant capacity was associated with impaired sperm function as a result of either increased ROS production or insufficient antioxidant capacity.     

精浆和血清生殖激素与精液质量的关系

目的为了评估精液质量不同的男性精浆和血清生殖激素的浓度与精子浓度及活动力的关系,探索精浆与血清生殖激素的关系。方法对301名男性进行精液检查,按照精液的质量参数将受试对象分成4组:精液正常组(n=176),弱精子症组(n=66),少精子症组(n=40)和非梗阻性无精子症组(n=19)。采用电化学发光免疫法测定各组受试对象血清卵泡刺激素(FSH)、黄体生成素(LH)、泌乳素(PRL)、孕酮(P)、睾酮(T)和雌二醇(E2)六项生殖激素和精浆PRL、T、P和E2四项生殖激素的浓度,比较组间差异并进行相关性分析。结果精液正常组和弱精子症组血清FSH和E2的浓度显著低于少精子症组和非梗阻性无精子症组(P0.05),精液正常组血清LH和P的浓度显著低于弱精子症、少精子症和非梗阻性无精子症的人群(P0.05);而精液正常、弱精子症和少精子症三组精浆PRL的浓度则高于非梗阻性无精子症组(P0.05)。除了非梗阻性无精子症组,受试者血清FSH的浓度与其精子浓度呈负相关(r分别为-0.350、-0.273和-0.448,P0.05)。精液正常组精浆PRL的浓度和精子的浓度之间呈正相关(r=0.269,P0.05);在少精子症组中,亦有相同趋势的相关性(r=0.432,P0.05)。结论精浆PRL及血清FSH的浓度能够反映精子浓度或活动力,在男性不育的病因分析中具有一定的指导价值。     

The effect of spermine, spermidine and kallikrein on the triple adenosine triphosphatase enzyme activity of spermatozoa in males with oligoasthenozoospermia

Unknown factors in the seminal plasma of normal semen that affect the motility of spermatozoa have a positive effect on adenosine triphosphatase (ATPase) enzyme activity. In an attempt to produce such an effect, spermine, spermidine and kallikrein were added to the incubation media in which spermatozoal ATPase enzyme activity was determined. These seminal substances increased the triple ATPase enzyme activity of spermatozoa from oligoasthenozoospermic men. We propose that the ATPase enzyme activity of spermatozoa may indicate sperm motility as a biochemical test.     

Low expression of glycoprotein subunit 130 in ejaculated spermatozoa from asthenozoospermic men

Previous studies showed that interleukin-6 (IL-6) was expressed in human Leydig and Sertoli cells and that it inhibited sperm motility. The aim of this study was to compare the expression of IL-6, IL-6R, and GP130 in ejaculated spermatozoa between normozoospermic and asthenozoospermic men. Human spermatozoa in the semen were purified by Percoll gradient technique to separate the seminal plasma and other round cells. RT-PCR, immunocytochemistry, and Western blot were used to detect the expression of IL-6, IL-6R, and GP130 in spermatozoa. With RT-PCR, only GP130 mRNA but not IL-6 and IL-6R mRNA was expressed in human ejaculated spermatozoa. The expression of GP130 mRNA was significantly lower in asthenozoospermic men than in normozoospermic men. The protein expression of GP130 was further confirmed by both immunocytochemistry and Western blot. Again, GP130 protein levels were significantly lower in asthenozoospermic men than in normozoospermic men. The results suggested that the decreased expression of GP130 in ejaculated spermatozoa could be associated with low sperm motility in asthenozoospermic men.     

精浆锌与精液质量关系的研究

本文对552例不育男子与207例正常男子精浆中锌的含量进行了比较研究,结果发现两组间锌含量有显著性差异(P<0.05)。在不育组中尤其以精子密度<20×10~6/ml组和精液不液化组差异显著(P<0.01和P<0.05)。无精症患者精浆锌高于正常人,但无统计学意义。输精管缺如者的锌值是正常人的3倍((?)±SD,432.9±74.5)。死精症患者精浆锌含量明显高于正常人。精子活动率低于40％时,随精子活动率的下降,锌含量有所上升(r=-0.2066,P<0.02),呈显著负相关。此外,本文还对16例输精管结扎前后的锌含量进行了比较,结果两者无差异。