UU感染对精子运动轨迹影响的实验研究

目的：探究解脲支原体（ＵＵ）感染对精子运动轨迹的影响,阐明ＵＵ感染引起男性不育症的发病机制。方法：正常精液一式２份,１份用ＵＵⅣ型人工感染正常精子,１份作对照,于感染后４、８、１６和２４ｈ分别进行精子运动轨迹分析。结果：正常精子受ＵＵ感染８ｈ精子运动速度明显低于对照组（３２．１８±０．８２μｍ／ｓｖｓ２１．０２±０．６２μｍ／ｓ,Ｐ＜０．０１）;感染１６ｈ精子运动方式为原地转圈和锯齿形运动;感染２４ｈ精子运动速度＜１０μｍ／ｓ,有活力精子几乎全是原地转圈运动。结论：解脲支原体Ⅳ型对精子运动速度和运动方式有明显影响,可能是ＵＵ引起男性不育的原因之一。     

解脲支原体感染对精子活动力的影响

解脲支原体感染是引起男性不育的一个重要因素，本试验通过人工感染精子后用显微镜来观察UU对精子活动率及活动力的影响，可为解脲支原体感染引起男性不育提供一些实验依据。     

177例少弱精子症患者解脲支原体感染的研究分析

目的：探讨少、弱精子症患者中解脲支原体（UU）感染及与UU感染有统计学关联的一些因素,为UU感染的预防提供资料。方法：调查177例少、弱精子症患者和40例正常就诊者,采用计算机辅助分析系统行精液常规分析,用UU分离鉴定培养液检测精液UU,采用混合抗球蛋白反应试验检测精液AsAb,登记表记录UU感染者相关统计学因素。结果：在177例少、弱精子症患者中,UU感染率为35％,明显高于正常对照组UU感染率10％（P〈0．05）．并且UU感染和年龄、性生活频率、受教育程度、居住环境有关,与包皮过长关系密切。结论：UU感染可以导致精子质量下降,包皮过长是UU感染的易患因素,建议生育年龄人群进行包皮环切。     

不育男性生殖道沙眼衣原体、解脲支原体感染与精子凋亡关系

目的 :探讨不育男性生殖道沙眼衣原体 ( CT)、解脲支原体 ( UU)感染与精子凋亡的关系。方法 :采用流式细胞术 ( FCM)检测生殖道 UU、CT感染者和未感染者精子凋亡情况。结果 :CT、UU阳性和阴性组精子凋亡率 ( PAS)分别为 ( 1 4 .54± 3 .90 ) %、( 8.3 7± 6.3 0 ) %、( 1 5.2 6± 6.56) %、( 9.2 5± 4.0 3 ) % ,CT+UU双阳性精子凋亡率高达( 2 2 .2 1± 6.52 ) % ,各组与正常生育组比较 ,差异非常显著 ( P<0 .0 1 )。阳性组与相应阴性组比较差异显著 ( P<0 .0 5)。结论 :生殖道 UU、CT感染可明显增加精子凋亡 ,提示引起男性不育的诸多因素可能因精子细胞凋亡所致。     

精浆超氧化物歧化酶与解脲支原体感染的关系

目的：观察解脲支原体（ＵＵ）感染与精浆超氧化物歧化酶（ＳＯＤ）活性的关系。　方法：应用精子活体染色技术和ＳＯＤ活性检测试剂盒,分别检测３６ 例正常生育男性（正常对照组）和８５例ＵＵ 感染不育男性（ＵＵ 感染组）的精子存活率与精浆ＳＯＤ活性。　结果：在正常对照组和ＵＵ 感染组中,精子存活率分别为（７８．２±７．７）％ 和（５３．６±８．４）％ ,差异极其显著（Ｐ＜ ０．０１）;精浆ＳＯＤ活性分别为（７６２．７±１３０．４）和（６４５．４±１３２．５） ＮＧ／ｍ ｌ,差异显著（Ｐ＜ ０．０５）。　结论：ＵＵ 感染可引起精浆ＳＯＤ活性降低,精子膜发生过氧化损伤,影响精子的存活率和活动力。在对ＵＵ 感染病人进行抗感染治疗的同时,辅以清除氧自由基和提高ＳＯＤ活性的物质,有利于病人恢复正常的生育能力。     

解脲支原体、沙眼衣原体与精液白细胞及精子形态的关系

目的 探讨解脲支原体、沙眼衣原体、精液白细胞与精子形态的关系.方法 对1023例男性不育患者精液样本进行检测,解脲支原体采用培养法,沙眼衣原体采用生化酶法进行检测,白细胞采用联苯胺染色方法进行检测,精子形态检测采用计算机辅助系统下人工修正的方法进行分析.结果 UU阳性率为27.57%,CT阳性率为30.11%.UU阳性组、CT阳性组及UU CT阳性组正常形态精子百分率均显著低于对照组(P＜0.01),亦均显著低于阴性组(P＜0.05,P＜0.01).UU阳性组、CT阳性组及UU CT阳性组白细胞异常率均显著高于对照组(P＜0.001),亦均显著高于阴性组(P＜0.001).白细胞异常组正常形态精子百分率显著低于对照组和白细胞正常组(P＜0.001).结论 UU、CT感染、白细胞、精子形态关系密切,UU、CT感染可能直接影响精子形态,亦可能通过激发白细胞异常,通过白细胞机制影响精子形态.     

解脲支原体感染对男性不育的影响

解脲支原体(UU)是人类泌尿生殖系统感染的常见病原体，可引起男性生殖道炎症。许多研究表明男性生殖道炎症是造成男性不育的原因之一，可导致精液质量异常、男性生育力降低。本文用培养法对774例受检男性的精液作UU培养检测，并同时进行精液常规分析，从精液体积、精子活动率及活动力、精子畸形率和精子密度几个方面来探讨男性精液UU感染对不育的影响，现报告如下。     

解脲支原体与不孕不育症的关系探讨

目的：对不孕不育与解脲支原体的关系进行分析。方法选取我院2010年9月~2013年8月收治的90例不孕患者作为观察组,进行解脲支原体检查,同时选择50例生育能力正常的正常人士采用同样的方法进行检测,研究分析孕不育与解脲支原体之间的关系。结果观察组分离出解脲支原体89株,其中解脲型48例（53.33%）,人型29例（32.22%）,解脲型与人型混合感染12例（13.33%）;对照组分离出11例,其中解脲型6例（12.00%）,人型3例（6.00%）,解脲型与人型混合感染2例（4.00%）。观察组的患者UU阳性概率为54.44%,CT阳性概率为8.89%,对照组的UU阳性率为4.00%,CT阳性概率为2.00%。两组结果比较,差异具有统计学意义（P＜0.05）。结论不孕不育与解脲支原体具有密切的关系。     

解脲支原体感染与精子凋亡

目的：对精液解脲支原体（ｕｒｅａｐｌａｓｍａｕｒｅａｌｙｔｉｃｕｍ,ＵＵ）培养阳性及阴性的男性精子进行凋亡率检测。方法：采用瑞－姬染色和ＴｄＴ介导的脱氧核苷酸原位末端标记法（ＴＵＮＥＬ）。结果：ＵＵ感染组精子凋亡率明显大于ＵＵ阴性组（Ｐ＜０．０１）。结论：ＵＵ感染可造成男性精子凋亡率升高,影响精子活率。     

人精子顶体酶活性及其影响因素分析

为研究人精子顶体酶活性与男性不育的关系，分别测定门诊３５６例不育男性精液（实验组）和１８例正常生育者精液（对照组）的顶体酶活性，同时测定实验组男性的精子活力、精子活率、畸形率、镜下白细胞数、精浆抗精子抗体并进行解脲支原体培养，作相关性分析。结果：实验组和对照组顶体酶活性为１０７±９２和２９７±１４３μＩＵ／１０６精子，组间比较差异有显著性（Ｐ＜０００１），顶体酶活性与镜下白细胞数、畸形率明显负相关，与精子活率、精子活力正相关，顶体酶活性与解脲支原体感染有关，但精浆抗精子抗体的存在不影响顶体酶活性。提示顶体酶活性与精子质量有关，是影响生育的重要因素     

Influence of enterococci on human sperm membrane in vitro

Aim： To study the influence of enterococci on human sperm membrane in vitro. Methods： Ejaculated human sperm were artificially infected with β-hemolytic or non-β-hemolytic enterococci at the bacteria： sperm ratio of 50：1 at 37℃. Sperm membrane integrity was examined after incubation for 1, 3 and 5 h by hypoosmotic swelling （HOS） test and electron microscopy. Results： Sperm infected with β-hemolytic enterococci had lower HOS scores compared with non-β-hemolytic strains or uninfected control （P 〈 0.01）. The HOS test scores of sperm infected with β-hemolytic enterococci increased in the presence of phosphatidylcholine, an inhibitor of hemolysin. Non-β-hemolytic strains showed no significant difference in swelling rate, compared with the control group （P 〉 0.05）. It was shown by electron microscopy that β-hemolytic enterococci caused significant rupture of human sperm membrane. Conclusion： β-hemolytic enterococci caused human sperm membrane injury, and might be mediated by the hemolysin of enterococci.     

冷冻精子受精能力的综合评价

目的：观察不同冷冻期冷冻精子的受精能力。方法：应用精液常规分析（ＳＦＡ）、精子尾部低渗肿胀试验（ＨＯＳ）、去透明带地鼠卵穿透试验（ＨＯＰ）及冷冻精液人工授精（ＡＩＤ）对冷冻前后及不同冻存期的精液标本进行综合性检测。结果：１０份正常精液标本的冷冻精子活动率、ＨＯＳ值、ＨＯＰ值均明显低于冷冻前（Ｐ＜０．００１），而不同冻存期的精液行ＡＩＤ术后的总妊娠率与新鲜精液ＡＩＤ术的总妊娠率比较，则基本相同。结论：精子细胞膜虽在冷冻复温过程中受到一定的损伤，使精子活动率和受精能力下降。但是，精液的长期冻存及精子细胞膜部分改变并不完全影响精子的受精能力。     

人工感染解脲支原体的精子形态学观察

目的：探讨用解脲支原体（ Ｕ Ｕ）人工感染精子后,精子的形态学改变。　方法：运用电镜和相差显微镜观察 Ｕ Ｕ 人工感染正常精子和未感染精子２４ ｈ 后的形态学改变。　结果： Ｕ Ｕ 感染２４ ｈ 后,部分精子头部有较多的 Ｕ Ｕ吸附,在 Ｕ Ｕ 吸附部位精子膜出现破损;同时,畸形精子明显增加,主要为头尾折角、卷尾及精子凝集。　结论： Ｕ Ｕ感染对精子形态学的影响是造成男性不育的重要因素之一。     

Studies on relationship between semen viscosity and other semen parameters, Ureaplasma urealyticum infection and seminal plasma antisperm antibody

Objective: To study the relationship between semen viscosity and other semen parameters, Ureaplasma urealyticum (UU) infection and seminal plasma antisperm antibody (AsAb) in male infertiles. Methods: Semen parameters, Ureaplasma urealyticum (UU) infection and antisperm antibody (AsAb) were measured and analyzed in 4337 infertile men. Results: The seminal viscosity was higherr than normal in 65.02 % of 4337 male infertiles. The sperm motility and grade (a, b) motile sperm were significantly lower in the high viscosity group than in the normal viscosity group (P<0.05-0.01). The rate of abnormal morphology sperm was higher and duration of semen liquefaction was longer in the high viscosity than in the normal viscosity group (P<0.01). The seminal volume, sperm concentration and semen pH were not significantly different between the two groups. The semen viscosity is significantly higher in subjects with higher seminal WBC (>5/ HP) than in those with lower WBC (<5/HP). The positive AsAb and UU infection rates     

Hyperoxygenated solution preconditioning attenuates lung injury induced by intestinal ischemia reperfusion in rabbits

BACKGROUND: The current study was undertaken to elucidate the possible therapeutic effects of hyperoxygenated solution (HOS) preconditioning on lung injury induced by intestinal ischemia/reperfusion (I/R) in rabbits. MATERIALS AND METHODS: Eighty rabbits were randomly divided into four groups (n = 20 each) as follows: (1) control group in which sham operation was performed (sham group), (2) HOS pretreatment group and sham operation (HOS + sham group), (3) ischemia/reperfusion group (I/R group), (4) HOS pretreatment and ischemia/reperfusion group (HOS + I/R group). Intestinal I/R model was produced by clamping superior mesenteric artery with an atraumatic vascular clamp for 1 h, and followed by reperfusion for 2 h. Animals in HOS + sham group and HOS + I/R group received intravenous HOS infusion (20 mL/kg, 10 mL/kg.h for 2 h) every day for 5 d before operation, and animals in sham group and I/R group received the same amount of normal saline in the same way. At the end of reperfusion, 8 animals from every group were sacrificed and histopathological changes of lung were observed; pulmonary edema, lung myeloperoxidase activity, superoxide dismutase activity, and malondialdehyde levels in lung tissues were also detected. The rest 12 animals in every group underwent 60 min of intestinal ischemia followed by 72 h of reperfusion, and effects of HOS pretreatment on survival in rabbits with lung injury induced by intestinal I/R was observed. RESULTS: When rabbits were subjected to 60 min of intestinal ischemia, a high incidence of mortality was observed within 24 h. In this situation, HOS preconditioning before the start of ischemia/reperfusion significantly reduced the mortality. HOS preconditioning also decreased lung wet/dry ratio, neutrophil infiltration, lipid membrane peroxidation, and increased superoxide dismutase activity in the lungs after intestinal I/R compared with the I/R-treated rabbit lungs without HOS treatment. Histopathological analysis also indicated the effectiveness of HOS pretreatment. CONCLUSIONS: HOS preconditioning could preserve superoxide dismutase activity, decrease lipid membrane peroxidation and neutrophil infiltration in the lungs, then ameliorate the deleterious changes in pulmonary injury induced by intestinal I/R.     

人精子与溶脲脲原体的共同抗原

溶脲脲原体(UU)是人泌尿生殖道的常见病原体,男性感染者又常伴有抗精子抗体,并可致不育。本实验证实了人精子与UU有共同抗原。① ELISA方法抗 UU抗体不仅可与UU抗原起反应,也可与人精子或精子膜发生反应;抗人精子抗体同样也可与UU抗原发生反应;②10％不连续SDS-PAGE可见人精子、精子膜提取物与UU有相同的蛋白电泳区带;③免疫印迹技术证明抗UUIgG对转移到硝基纤维薄膜上的人精子、精子膜和UU的电泳条带,在分子量 61KDa处发生特异性的交叉反应。