Chinese traditional medicine yi kang ling to treat immunity infertility caused by anti-sperm antibody: the experimental research II / 中华男科学杂志

<p><b>OBJECTIVE</b>To observe the effects of Chinese traditional medicine Yi Kang Ling (YKL) on immunity infertility caused by anti-sperm antibodies (AsAb).</p><p><b>METHODS</b>With the AsAb infertile rabbit as the experimental model, seventy-five pairs of New zealand rabbits were divided into three group including YKL treatment group (sub-divided into mini-, midi- and maxi-dosage groups), prednisone treatment group and non-treatment group. Rabbits of the YKL treatment sub-groups were further divided into M+F- (male positive, female negative), M-F+, (male negative, female positive) and M+F+ (male positive, female positive) pairs according to their initial AsAb detection results. The control group consisted of five pairs of normal rabbits. When the expected AsAb reversing ratio was achieved, the rabbits were matted and observed for the number of the pregnant and the weight of the newborn.</p><p><b>RESULTS</b>Statistics showed that in M+F- pairs both the midi-dosage of YKL and prednisone treatment groups had fertility, in the mini- and maxi-dosage of YKL treatment groups, 20% of the female rabbits failed to be pregnant, while in the non-treatment group, 60% female rabbits remained sterile. The sterile ratios of the M-F+ pairs in the mini-, midi- and maxi-dosage of YKL and prednisone treatment groups were 0, 20%, 25% and 25%, respectively, while the sterile ratio in the non-treatment M-F+ group was 40%. In M+F+ groups, the sterile ratios of the three YKL sub-groups, prednisone treatment and non-treatment groups were 20%, 20% and 60% respectively. In the control group the sterile ratio was 20%. The weight of the newborn rabbits were around 50 grams with no visible malformation.</p><p><b>CONCLUSIONS</b>YKL can effectively reverse the AsAb positive results, and restore the fertility of female rabbits. Mini-dosage of YKL for 45 days produced the best results and maxi-dosage of YKL had no negative effects on the weight of the newborn rabbit.</p>

Detection and clinical significance of phospholipase A2 in semen of male infertile patients / 中华男科学杂志

<p><b>OBJECTIVES</b>To explore the clinical application of anti-human seminal plasma phospholipase A2 (PLA2) monoclonal antibody (McAb) for male infertility.</p><p><b>METHODS</b>Enzyme-linked immunoabsorbent assay (ELISA), immunocytochemistry(ICC), as well as flow cytometry (FCM) analysis were established using two strains anti-human seminal plasma PLA2 McAb prepared by our laboratory to detect the PLA2 content in human seminal plasma and the anterior head region of spermatozoa, respectively. Then the PLA2 content in male infertile patients were compared with that in normal control with fertility. The seminal routine analysis was performed by computer-assisted semen analysis (CASA).</p><p><b>RESULTS</b>The PLA2 content of infertile groups were (31.13 +/- 14.49) ng/ml in azoospermic patients, (17.71 +/- 12.45) ng/ml in oligospermic patients and (16.46 +/- 11.31) ng/ml in patients with normal sperm density, which were all higher than that of normal controls [(8.09 +/- 3.15) ng/ml, P < 0.01]; There was significantly negative correlation between PLA2 content in seminal plasma and sperm density(r = -0.602, P < 0.05), while there was insignificant correlation between PLA2 and sperm motility or percentage of motility. The PLA2 content in the anterior head region of spermatozoon of male infertile groups was significantly lower than that of normal controls by ICC and FCM(P < 0.01).</p><p><b>CONCLUSIONS</b>PLA2 in human seminal plasma is closely related to male fertility, and the PLA2 deficiency in the head of spermatozoa may be one of the reasons causing male infertility. The methods detecting PLA2 content in seminal plasma and the head of spermatozoa can provide powerful evidences for exploring the mechanism of male infertility.</p>

Construction and identification for cell strain of anti-human seminal plasma phospholipase A2 monoclonal antibody / 中华男科学杂志

<p><b>OBJECTIVES</b>To establish and evaluate the anti-human seminal plasma phospholipase A2 (PLA2) monoclonal antibody (McAb).</p><p><b>METHODS</b>After having been separated and purified from human seminal plasma by PEG precipitation, Sephacryl S-300 column chromatography, DEAE-Sephadex A-25 column chromatography and HA column chromatography, PLA2 was regarded as an antigen to immune BALB/C mouse to produce anti-human seminal plasma PLA2 McAb. The PLA2 McAb sensitivity and specificity were performed by ELISA technique and Western-blot analysis, respectively.</p><p><b>RESULTS</b>The molecular weight of PLA2 depurated with 245 fold purification from human seminal plasma was about 34,900, while the sensitivity and typing of its McAb were 1:5(6)-1:5(8) and IgM (kappa) with a satisfied Western-Blot results.</p><p><b>CONCLUSIONS</b>The PLA2, which had not been reported in international and domestic papers, may be a new type of PLA2. The establish of its McAb will provide significant tools for the research of the relationship between PLA2 in human seminal plasma and male fertility.</p>