Association of Ureaplasma urealyticum with the types of antisperm antibody in infertile men / 中华男科学杂志

Objective@#To investigate the prevalence of Ureaplasma urealyticum (UU) infection in infertile men, its influence on routine semen parameters and the distribution of antisperm antibody (AsAb) and its types in infertile patients with UU infection.@*METHODS@#We detected the positive rate of UU infection, semen parameters, and the distribution of AsAb and its types in 662 infertile men and 25 normal fertile male controls followed by comparison of the obtained data between the two groups of subjects.@*RESULTS@#The positive rate of UU infection was significantly higher in the infertile men than in the normal controls (52.87% ［350/662］ vs 16.00% ［4/25］, χ2 = 11.68, P 0.05) and AsAb IgA, IgM and IgG in the seminal plasma, or in the percentages of serum AsAb IgM (16.9% vs 20.5%, χ2 = 1.22, P >0.05) and IgG (32.7% vs 28.9%, χ2 = 0.99, P >0.05) except in that of serum AsAb IgA (23.6% vs 17.0%, χ2 = 4.03, P <0.05).@*CONCLUSIONS@#The UU infection rate is high in infertile males, which decreases the semen volume, total sperm count, motile sperm concentration and percentage of progressively motile sperm and increases the positive rate of serum AsAb IgA.

Analysis of UU,CT, NG and MG in Infertile Women and Comparison of Different Detection Methods / 现代检验医学杂志

Objective To analyze the distribution of pathogens in the genital tract of infertile female,and comparing traditional methods with simultaneous amplification and testing (SAT) in the detection of UU,CT,NG and MG.Methods 467 female infertility patients were selected from the reproductive center of Suzhou Hospital Affiliated to Nanjing Medical University between June and September 2016 to analyze the distribution of UU,CT,MG and NG.The age was between 20 to 48 years old (mean 31.52±6.83 years old).352 cases of female patients with assisted reproductive technology were selected,aged from 21 to 46 years old (mean 30.67±6.67 years old).The swabs were tested by traditional methods or SAT.The sensitivity and specificity of the methods in detecting the pathogens were evaluated according to the experimental results.Results Among the 467 infertile women,the number of UU positive cases was the highest,the positive rate was 62.53％ (292/467),the positive rate of CT was 1.93％ (9/467) and the positive rate of NG was 0.21％ (1/467),and the positive rate of MG was 1.71％ (8/467).UU infection rate was higher in infertile women than normal control group 23.81％ (25/105) (x2 =52.01,P＜0.01).352 cases of female patients with assisted reproductive technology were selected for further analysis.For UU detection,the positive rate of swab samples detected by liquid culture was 48.9％,while the positive rate detected by SAT was 63.9％.Obviously the positive rate of SAT was higher than that of liquid culture.Swab culture and SAT results were analyzed by paired x2 test (x2 =41.93,P＜0.01).The positive rate of CT SAT was 1.71％,and the positive rate of CT-latex method was 0.28 ％.There was significant difference between CT latex method and SAT (Fisher exact probabilistic method statistical analysis,P＜0.005),which indicated that SAT method had a higher sensitivity.The positive rate (1.7 ％) and sensitivity (100％) of SAT were also higher than that of traditional method.Conclusion UU was the most common pathogen in female reproductive tract pathogens,followed by CT and MG.The SAT method has higher sensitivity than the conventional method in detecting of UU and CT.

Sperm chromatin structure assay versus sperm chromatin dispersion test in detecting sperm DNA integrity and correlation of sperm DNA fragmentation with semen parameters / 中华男科学杂志

Objective@#Sperm DNA fragmentation (SDF) is widely used to predict male infertility and the methods of detecting SDF are varied. This study aimed to compare two methods of SDF detection and investigate the correlation between SDF and sperm quality.@*METHODS@#Using sperm chromatin structure assay (SCSA) and sperm chromatin dispersion test (SCD), we detected SDF in 108 semen samples collected in the Center of Reproduction and Genetics of Suzhou Municipal Hospital. We compared the results of the two methods and analyzed the correlations of SDF routine semen parameters, sperm morphology and the age of the patients.@*RESULTS@#A significant consistency was found in the SDF index (DFI) between the two methods (P<0.01). The DFI was correlated negatively with sperm motility, the percentage of progressively motile sperm, and that of morphologically normal sperm (P <0.01), but positively with the teratozoospermia index (P <0.01 in SCSA and P <0.05 in SCD). The DFI measured by SCSA showed a significantly positive correlation with the patients' age (P <0.01), but not that obtained by SCD.@*CONCLUSIONS@#The results of both SCSA and SCD play an important role in predicting sperm quality. As a clinical index, the DFI has a predictive value for male infertility. However, the results of different detecting methods vary widely, which calls for further studies on their standardization.

Relationship of sperm morphology with the outcomes of in vitro fertilization and embryo transfer / 中华男科学杂志

<p><b>OBJECTIVE</b>To study the application value of normal sperm morphology on the outcomes of classic in vitro fertilization and embryo transfer (IVF-ET).</p><p><b>METHODS</b>This study included 659 infertile couples admitted to our center for IVF-ET. Based on the percentage of morphologically normal sperm (MNS), we divided the patients into groups A (n = 112, MNS < 2%), B (n = 180, MNS > or = 2 - < 4%), C (n = 74, MNS > or = 4 - < 5%), and D (n = 293, MNS > or = 5%), and compared the rates of fertilization, normal fertilization, embryos obtained, biochemical pregnancy, clinical pregnancy, implantation, and live birth among different groups.</p><p><b>RESULTS</b>The mean fertilization rate was significantly higher in groups C (71.90%) and D (72.89%) than in A (57.97%) and B (63.29%) (P < 0.05), with no remarkable differences either between A and B (P > 0.05) or between C and D (P > 0.05). The normal fertilization rate was also significantly higher in group D (57.16%) than in A (46.52%) and B (50.89%) (both P < 0.05) as well as in C (54.67%) than in A (P < 0.05). The rate of embryos obtained, too, was markedly higher in group D (55.62%) than in B (45.75%) (P < 0.05), but none with remarkable difference from other groups (all P > 0.05). There were no statistically significant differences among the four groups in the rates of biochemical pregnancy, clinical pregnancy, implantation, abortion, and live birth (all P > 0.05).</p><p><b>CONCLUSION</b>The rate of MNS had some influence on IVF-ET, and 5% MNS exhibited a higher value than 4% MNS in predicting the outcomes of IVF.</p>