Klinefelter's综合征伴无精子症患者临床表型及分子细胞遗传学分析

目的:探讨Klinefelter's综合征(Klinefelter's syndrome,KFS)伴无精子症患者临床表型和遗传学特征。方法:收集9例KFS伴无精子症患者和8例正常生育男性组临床资料,精液分析依照世界卫生组织指南操作,外周血淋巴细胞按常规染色体培养及G和Q显带行核型分析,对KFS患者X、Y染色体行荧光原位杂交技术(fluorescence in situ hybridization,FISH)检测确认。Y染色体微缺失选取EAA和EMQN推荐6个Y染色体特异标签序列位点行Y染色体AZFa、AZFb和AZFc区微缺失检查。卵泡刺激素(FSH)、黄体生成素(LH)、睾酮(T)采用BECKMAN ACCESS化学发光法检测。结果:9例患者均以不育就诊,表现为身材高大,喉结不明显,阴毛分布正常或稀少,阴茎正常或短小,除1例伴有Y染色体微缺失者睾丸质地软外,余双侧睾丸质地较硬,睾丸体积<4 ml,精液常规检查离心未见精子,9例患者FSH、LH明显升高,T水平正常值低限或偏低。9例患者染色体核型和FISH检测均为47,XXY,行Y染色体Q带染色均为阳性,其中1例Y染色体偏小FISH示存在缺失,Y染色体微缺失检测显示AZFa、b、c区缺失,其余未检测到缺失,缺失发生率11.11%。8例正常生育男性组染色体核型正常、Y染色体未检测到微缺失。结论:KFS具有典型高促性腺功能低下型性腺功能减退症特点,KFS患者伴有潜在Y染色体微缺失可能,Y染色体微缺失不是KFS患者无精子的主要原因,KFS患者行Y染色体微缺失筛查对于了解病情和行辅助生殖技术是必要的。

Clinical feature and molecular cytogenetics analysis of Klinefelter's syndrome with azoospermic

Objective:To explore the clinical phenotype and cytogenetic characteristic of Klinefelter's syndrome(KFS) with azoospermic.Methods:Clinical data of 9 Klinefelter's syndrome with azoospermic and 8 fertile males was collected,semen analysis was performed according to techniques described by the WHO current,and the chromosomal karyotypes were examined by G and Q banding technique.Fluorescent in situ hybridization(FISH) were performed to study the molecular cytogenetics of the KFS patient.6 Y-specific sequence ...