Spermatozoa have a highly complex RNA profile.Several of these transcripts are suggested as biomarkers for male infertility and contribute to early development.To analyze the differences between sperm RNA quantity and...Spermatozoa have a highly complex RNA profile.Several of these transcripts are suggested as biomarkers for male infertility and contribute to early development.To analyze the differences between sperm RNA quantity and expression of protamine(PRM1 and PRM2)and testis-specific histone 2B(TH2B)genes,spermatozoa from 33 patients who enrolled in assisted reproduction treatment(ART)program were analyzed.Sperm RNA of teratozoospermic(T),oligoteratozoospermic(OT),and normozoospermic(N)samples was extracted,and the differences in transcript levels among the study groups were analyzed by quantitative real-time polymerase chain reaction(qRT-PCR).The correlations of total RNA per spermatozoon and the expression of the transcripts were evaluated in relation to sperm characteristics and preimplantation embryo development.The mean(±standard deviation)RNA amount per spermatozoon was 28.48(±23.03)femtogram in the overall group and was significantly higher in the OT group than that in N and T groups.Total sperm RNA and gene expression of PRM1 and PRM2 genes were related to preimplantation embryo development and developmental arrest.Specific sperm characteristics were correlated with the expressions of PRM1,PRM2,or TH2B genes.We conclude that the sperm RNA amount and composition are important factors and might influence early embryonic development and also differ in different cases of male infertility.展开更多
Objective:To study regulation of external leukemia inhibitory factor(LIF) and interlukin 1(IL 1) on the expression of integrin β 3 in the mouse endometrium during peri implantation period and explore the mechanism wh...Objective:To study regulation of external leukemia inhibitory factor(LIF) and interlukin 1(IL 1) on the expression of integrin β 3 in the mouse endometrium during peri implantation period and explore the mechanism which LIF participate in embryonic implantation.Methods:The mice were injected peritoneally with LIF,IL 1 or IL 1ra at different administration on day 2～4 of pregnancy.The level of integrin β 3 protein was measured with Westernblot method and mRNA measured with RT PCR.Results:The levels of integrin β 3 protein and mRNA were increased by LIF and IL 1(P<0.05) and which relied on administration.The level of integrin β 3 mRNA was decreased by IL 1ra (P<0.05).Conclusion:LIF and IL 1 of cytokines can improve the expression of integrin β 3 in the peri implantation endometrium of mouse.Both of them may take part in implantation by regulating cell adhesion molecules.展开更多
基金supported by the Scientific Research Projects Coordination Unit of Istanbul University(No.13930).
文摘Spermatozoa have a highly complex RNA profile.Several of these transcripts are suggested as biomarkers for male infertility and contribute to early development.To analyze the differences between sperm RNA quantity and expression of protamine(PRM1 and PRM2)and testis-specific histone 2B(TH2B)genes,spermatozoa from 33 patients who enrolled in assisted reproduction treatment(ART)program were analyzed.Sperm RNA of teratozoospermic(T),oligoteratozoospermic(OT),and normozoospermic(N)samples was extracted,and the differences in transcript levels among the study groups were analyzed by quantitative real-time polymerase chain reaction(qRT-PCR).The correlations of total RNA per spermatozoon and the expression of the transcripts were evaluated in relation to sperm characteristics and preimplantation embryo development.The mean(±standard deviation)RNA amount per spermatozoon was 28.48(±23.03)femtogram in the overall group and was significantly higher in the OT group than that in N and T groups.Total sperm RNA and gene expression of PRM1 and PRM2 genes were related to preimplantation embryo development and developmental arrest.Specific sperm characteristics were correlated with the expressions of PRM1,PRM2,or TH2B genes.We conclude that the sperm RNA amount and composition are important factors and might influence early embryonic development and also differ in different cases of male infertility.
文摘Objective:To study regulation of external leukemia inhibitory factor(LIF) and interlukin 1(IL 1) on the expression of integrin β 3 in the mouse endometrium during peri implantation period and explore the mechanism which LIF participate in embryonic implantation.Methods:The mice were injected peritoneally with LIF,IL 1 or IL 1ra at different administration on day 2～4 of pregnancy.The level of integrin β 3 protein was measured with Westernblot method and mRNA measured with RT PCR.Results:The levels of integrin β 3 protein and mRNA were increased by LIF and IL 1(P<0.05) and which relied on administration.The level of integrin β 3 mRNA was decreased by IL 1ra (P<0.05).Conclusion:LIF and IL 1 of cytokines can improve the expression of integrin β 3 in the peri implantation endometrium of mouse.Both of them may take part in implantation by regulating cell adhesion molecules.
