目的探讨Y染色体AZFc区部分缺失多态性与原发性男性生精障碍的相关性。方法运用单重及多重PCR技术,对252例正常生精男性、430例原发性生精障碍患者(170例原发性少精和260例原发性无精)进行Y染色体AZFc区及其附近的11个序列标签位点(Sequ...目的探讨Y染色体AZFc区部分缺失多态性与原发性男性生精障碍的相关性。方法运用单重及多重PCR技术,对252例正常生精男性、430例原发性生精障碍患者(170例原发性少精和260例原发性无精)进行Y染色体AZFc区及其附近的11个序列标签位点(Sequence tagged sites,STS)进行缺失筛查,对发生gr/gr缺失的个体运用SFVs(sequence family variants)法检测DAZ基因拷贝缺失的位置。结果SY1291-gr/gr-DAZ1/DAZ2缺失在正常生精组、原发性少精症组和原发性无精症组中的缺失率分别为2.0%、8.8%和7.7%。SY1291-gr/gr-DAZ3/DAZ4缺失在正常生精组、原发性少精症组和原发性无精症组中的缺失率分别为3.2%、2.9%和1.5%;SY1191-b2/b3-DAZ3/DAZ4在正常生精组、原发性少精症组和原发性无精症组中的缺失率分别为6.3%、2.4%和1.9%。b2/b4重组缺失的个体都为原发性无精症患者,缺失率为4.2%。SY1291-gr/gr-DAZ1/DAZ2、SY1191-b2/b3-DAZ3/DAZ4和b2/b4重组缺失在正常生精组与生精障碍组间缺失率差异的P值分别为0.001、0.004和0.009和,差异均有统计学意义。SY1291-gr/gr-DAZ3/DAZ4缺失在正常生精组与生精障碍组间缺失率差异的P值为0.382,差异无统计学意义。结论男性Y染色体AZFc区存在多种部分缺失多态性。SY1291-gr/gr-DAZ3/DAZ4缺失可能对生精功能的影响较小,仅是一种基因组多态,SY1291-gr/gr-DAZ1/DAZ2和SY1191-b2/b3-DAZ3/DAZ4缺失是男性生精障碍的高风险因子,b2/b4重组缺失是男性生精障碍的病因。展开更多
Objective:There are many reports on associations between spermatogenesis and partial azoospermia factor c(AZFc) deletions as well as duplications;however,results are conflicting,possibly due to differences in methodol...Objective:There are many reports on associations between spermatogenesis and partial azoospermia factor c(AZFc) deletions as well as duplications;however,results are conflicting,possibly due to differences in methodology and ethnic background.The purpose of this study is to investigate the association of AZFc polymorphisms and male infertility in the Yi ethnic population,residents within Yunnan Province,ChinaMethods:A total of 224 infertile patients and 153 fertile subjects were selected in the Yi ethnic population.The study was performed by sequence-tagged site plus/minus(STS+/) analysis followed by gene dosage and gene copy definition analysis.Y haplotypes of 215 cases and 115 controls were defined by 12 binary markers using single nucleotide polymorphism on Y chromosome(Y-SNP) multiplex assays based on single base primer extension technology.Results:The distribution of Y haplotypes was not significantly different between the case and control groups.The frequencies of both gr/gr(7.6% vs.8.5%) and b2/b3(6.3% vs.8.5%) deletions do not show significant differences.Similarly,single nucleotide variant(SNV) analysis shows no significant difference of gene copy definition between the cases and controls.However,the frequency of partial duplications in the infertile group(4.0%) is significantly higher than that in the control group(0.7%).Further,we found a case with sY1206 deletion which had two CDY1 copies but removed half of DAZ genes.Conclusions:Our results show that male infertility is associated with partial AZFc duplications,but neither gr/gr nor b2/b3 deletions,suggesting that partial AZFc duplications rather than deletions are risk factors for male infertility in Chinese-Yi population.展开更多
目的采用基因芯片技术筛查精神发育迟滞伴小阴茎男童的基因组微失衡,探讨Y染色体无精子症因子C区(AZFc)部分缺失对其的致病性。方法提取1例精神发育迟滞伴小阴茎男童(先证者)及其父亲外周血DNA,利用Cyto One Array染色体芯片行全基因组...目的采用基因芯片技术筛查精神发育迟滞伴小阴茎男童的基因组微失衡,探讨Y染色体无精子症因子C区(AZFc)部分缺失对其的致病性。方法提取1例精神发育迟滞伴小阴茎男童(先证者)及其父亲外周血DNA,利用Cyto One Array染色体芯片行全基因组微失衡初筛,之后采用定制4×180K SNP+CNV精神发育相关芯片行全基因组微失衡筛查。选择特异性STS标签s Y1191,s Y1291作为引物,利用PCR特异性扩增11例正常男童,9/20例4×180K SNP+CNV芯片检测异常的精神发育迟滞未伴小阴茎男童,先证者及其父亲的Y染色体AZFc区域。进一步对170例精神发育迟滞未伴小阴茎男童行PCR扩增,分析AZFc区域缺失频率。结果 1Cyto One Array染色体芯片检测发现先证者存在AZFc区域全缺失(chr Y:24646690-28103711),定制4×180K SNP+CNV精神发育相关芯片排除其他精神发育相关基因组微失衡,发现AZFc区域部分缺失(chr Y:24873066-25203027;chr Y:25850255-26245019),结果不同于Cyto One Array染色体芯片。220例精神发育迟滞伴小阴茎男童行4×180K CNV+SNP芯片检测,5例存在Y染色体AZFc区域部分缺失,但缺失起止点不同;4例为已知的致精神发育异常的基因组微失衡。3PCR验证表明先证者及其父亲为AZFc区域b2/b3缺失,此片段缺失同时存在于1/11例正常男童、4/9例精神发育迟滞未伴小阴茎男童。4精神发育迟滞未伴小阴茎男童AZFc区域b2/b3缺失频率为15.1%(27/179)。结论 AZFc区域b2/b3缺失可能不是精神发育迟滞伴小阴茎男童的致病病因,此AZFc区域部分缺失在中国人群中为多态性位点。展开更多
To investigate the relation of luteinizing hormone (LH), follicle-stimulating hormone (FSH) and Testosterone serum levels with partial deletions in the AZFc region in Iranian oligozoospermia males. Material and method...To investigate the relation of luteinizing hormone (LH), follicle-stimulating hormone (FSH) and Testosterone serum levels with partial deletions in the AZFc region in Iranian oligozoospermia males. Material and methods: thirty infertile oligozoospermia and 52 Iranian fertile men included. The hormonal assays were measured by the Radioimmunoassay (RIA). Multiplex polymerase chain reaction (M-PCR) using eight sequence-tagged site (STS) markers were measured on the Yq11 chromosome. Results: The mean of FSH and LH levels in all oligozoospermia males were higher than fertile men (p < 0.001) and testosterone was lower significantly (p < 0.001). Five patients showed partial deletions in AZFc region (four had gr/gr and one had b2/b3 deletions). Six fertile men showed partial deletions (five gr/gr and one b2/b3) with higher level of FSH, LH in their group (p < 0.05). Conclusion: According to high incidence of partial deletions in the AZFc region among Iranian oligozoospermia males, hormonal assay and molecular screening should be advised before considering for ART treatments.展开更多
文摘目的探讨Y染色体AZFc区部分缺失多态性与原发性男性生精障碍的相关性。方法运用单重及多重PCR技术,对252例正常生精男性、430例原发性生精障碍患者(170例原发性少精和260例原发性无精)进行Y染色体AZFc区及其附近的11个序列标签位点(Sequence tagged sites,STS)进行缺失筛查,对发生gr/gr缺失的个体运用SFVs(sequence family variants)法检测DAZ基因拷贝缺失的位置。结果SY1291-gr/gr-DAZ1/DAZ2缺失在正常生精组、原发性少精症组和原发性无精症组中的缺失率分别为2.0%、8.8%和7.7%。SY1291-gr/gr-DAZ3/DAZ4缺失在正常生精组、原发性少精症组和原发性无精症组中的缺失率分别为3.2%、2.9%和1.5%;SY1191-b2/b3-DAZ3/DAZ4在正常生精组、原发性少精症组和原发性无精症组中的缺失率分别为6.3%、2.4%和1.9%。b2/b4重组缺失的个体都为原发性无精症患者,缺失率为4.2%。SY1291-gr/gr-DAZ1/DAZ2、SY1191-b2/b3-DAZ3/DAZ4和b2/b4重组缺失在正常生精组与生精障碍组间缺失率差异的P值分别为0.001、0.004和0.009和,差异均有统计学意义。SY1291-gr/gr-DAZ3/DAZ4缺失在正常生精组与生精障碍组间缺失率差异的P值为0.382,差异无统计学意义。结论男性Y染色体AZFc区存在多种部分缺失多态性。SY1291-gr/gr-DAZ3/DAZ4缺失可能对生精功能的影响较小,仅是一种基因组多态,SY1291-gr/gr-DAZ1/DAZ2和SY1191-b2/b3-DAZ3/DAZ4缺失是男性生精障碍的高风险因子,b2/b4重组缺失是男性生精障碍的病因。
基金Project(No.GREKF09-08)supported by the State Key Laboratory of Genetic Resources and Evolution,Kunming Institute of Zoology,Chinese Academy of Sciences,China
文摘Objective:There are many reports on associations between spermatogenesis and partial azoospermia factor c(AZFc) deletions as well as duplications;however,results are conflicting,possibly due to differences in methodology and ethnic background.The purpose of this study is to investigate the association of AZFc polymorphisms and male infertility in the Yi ethnic population,residents within Yunnan Province,ChinaMethods:A total of 224 infertile patients and 153 fertile subjects were selected in the Yi ethnic population.The study was performed by sequence-tagged site plus/minus(STS+/) analysis followed by gene dosage and gene copy definition analysis.Y haplotypes of 215 cases and 115 controls were defined by 12 binary markers using single nucleotide polymorphism on Y chromosome(Y-SNP) multiplex assays based on single base primer extension technology.Results:The distribution of Y haplotypes was not significantly different between the case and control groups.The frequencies of both gr/gr(7.6% vs.8.5%) and b2/b3(6.3% vs.8.5%) deletions do not show significant differences.Similarly,single nucleotide variant(SNV) analysis shows no significant difference of gene copy definition between the cases and controls.However,the frequency of partial duplications in the infertile group(4.0%) is significantly higher than that in the control group(0.7%).Further,we found a case with sY1206 deletion which had two CDY1 copies but removed half of DAZ genes.Conclusions:Our results show that male infertility is associated with partial AZFc duplications,but neither gr/gr nor b2/b3 deletions,suggesting that partial AZFc duplications rather than deletions are risk factors for male infertility in Chinese-Yi population.
文摘To investigate the relation of luteinizing hormone (LH), follicle-stimulating hormone (FSH) and Testosterone serum levels with partial deletions in the AZFc region in Iranian oligozoospermia males. Material and methods: thirty infertile oligozoospermia and 52 Iranian fertile men included. The hormonal assays were measured by the Radioimmunoassay (RIA). Multiplex polymerase chain reaction (M-PCR) using eight sequence-tagged site (STS) markers were measured on the Yq11 chromosome. Results: The mean of FSH and LH levels in all oligozoospermia males were higher than fertile men (p < 0.001) and testosterone was lower significantly (p < 0.001). Five patients showed partial deletions in AZFc region (four had gr/gr and one had b2/b3 deletions). Six fertile men showed partial deletions (five gr/gr and one b2/b3) with higher level of FSH, LH in their group (p < 0.05). Conclusion: According to high incidence of partial deletions in the AZFc region among Iranian oligozoospermia males, hormonal assay and molecular screening should be advised before considering for ART treatments.
