Asthenozoospermia is not correlated with 3' UTR polymorphisms of the GRP78 gene / 中华男科学杂志

<p><b>Objective</b>To investigate the correlation of the single nucleotide polymorphisms (SNPs) rs12009, rs1140763 and rs16927997 in the 3'-untranslated region (3'UTR) of the glucose-regulated protein 78 (GRP78) gene with the risk of male asthenozoospermia (AZS).</p><p><b>METHODS</b>We included 400 AZS patients in the AZS group and another 400 fertile men as normal controls. Using the SNaPshot technique, we genotyped the rs12009, rs1140763 and rs16927997 polymorphisms in the 3'UTR of the GRP78 gene in all the male subjects and analyzed the association of the three SNPs with AZS.</p><p><b>RESULTS</b>The percentage of progressively motile sperm was significantly lower in the AZS group than in the normal controls (［20.09 ± 8.18］ % vs ［57.16 ± 13.45］ %, P <0.01). Three genotypes of CC, CT and TT and 2 alleles of C and T were found in rs12009 and rs1140763 of the GRP78 gene, and another three genotypes of GG, GA and AA and two alleles of G and A were observed in rs16927997. There were no statistically significant differences between the control and AZS groups in the frequencies of the C and T alleles in rs12009 (44.3% vs 47.3% and 55.7% vs 52.7%, P >0.05) or rs1140763 (50.0% vs 52.0% and 50.0% vs 48.0%, P >0.05) or those of the G and A alleles in rs16927997 (6.0% vs 4.4% and 94.0% vs 95.6%, P >0.05), nor in the genotypes and allele frequencies of the 3 polymorphisms (P >0.05). Furthermore, three haplotypes of C-C-A, T-C-G and T-T-A were observed in the male subjects but showed no evident correlation between the AZS and normal control groups.</p><p><b>CONCLUSIONS</b>The polymorphisms in the 3'UTR of the GRP78 gene are not correlated with the risk of male asthenozoospermia.</p>

Distribution of polymorphisms at promoter region of miR-17-92 in Guangxi population and association of its polymorphisms and lymphocytes / 中国免疫学杂志

Objective:To investigate the distribution characteristics of polymorphisms of rs9515692C/T and rs1352743A/G in the promoter region of miR-17-92 gene cluster in Guangxi people and compare them with those of other ethnic groups and explore the association of its polymorphisms and lymphocytes.Methods:The rs9515692C/T and rs1352743A/G of miR-17-92 gene cluster were genotyped by using SNaPshot technique and DNA sequencing.Detection of the number of lymphocytes using flow cytometry.The differences of polymorphisms between groups were analyzed statistically.Results:No significant differences of genotype and allele frequency in the two SNPs was observed between different gender in the Guangxi population(P>0.05).However,there were significant differences in the distribution frequencies of genotype and allele of Europeans,Japanese and Africans in rs9515692C/T and rs1352743A/G (P<0.05).Conclusion:Polymorphisms of rs9515692C/T and rs1352743A/G are different in different people.In addition,rs9515692C/T polymorphism may be associated with the number of B cells.

Distribution characteristics of polymorphisms of interleukin-22 gene in Guangxi population and their association with serum lipid levels / 中国病理生理杂志

AIM:To investigate the distribution characteristics of interleukin-22(IL-22)gene rs2227485C/T and rs2227491A/G polymorphisms in Guangxi people and the distribution differences with other ethnic groups ,and to ex-plore the difference levels of common lipid indexes in different genotypes.METHODS:SNaPshot technique and DNA se-quencing were used in 280 Guangxi persons to examine IL-22 genotypes and to analyzed the distribution frequencies of allele and genotype in these sites.The distribution frequencies in different sexes ,and the differences between groups and diffe-rence levels of common lipid indexes in different genotypes were analyzed statistically.RESULTS:Three genotypes of CC ,CT and TT were found in rs2227485C/T with the frequency distribution of 17.1％,49.3％and 33.6％,respectively.No significant difference between different sexes of each genotype and allele frequency in the Guangxi population was observed(P>0.05).Compared with the distribution frequencies of genotype and allele in HapMap -TSI,HapMap-HCB,HapMap-JPT and HapMap-MEX,those in Guangxi population showed statistically significant differences(P<0.05).Three geno-types of AA,AG and GG were found in rs2227491A/G with the frequency distribution of 16.1％,52.8％and 31.1％,re-spectively.There was no significant difference between different sexes of each genotype and allele frequency in the Guangxi population(P>0.05).The significant differences of genotype frequencies among Guangxi population ,HapMap-TSI,Hap- Map-JPT and HapMap-MEX were detected(P <0.05 ).Compared with the other 4 populations ,allele frequencies in Guangxi population had significant difference(P <0.05).There were significant differences in the levels of HDL-C and LDL-C among the 3 genotypes of rs2227491A/G.The level of HDL-C had difference between AG/AA genotype and GG genotype.In addition,the level of LDL-C had difference between AG/GG genotype and AA genotype(P<0.05).CON-CLUSION:rs2227485C/T and rs2227491A/G polymorphisms of IL-22 gene have differences in different populations.The rs2227491A/G polymorphism may be associated with serum lipid levels.