当遗传学与激素相遇时:从罗伯茨的转移 (14;21) 中的不孕不育和正常性双胞胎性双胞胎不孕症 (14;21)
Hector R Gonzalez-Carranza1, Nestor Saucedo-Conrado1, Luis A Reyes-Vallejo1
1Department of Urology, Hospital Angeles Metropolitano, Mexico City, MEX.
Cureus
|November 24, 2025
概括
一个罕见的平衡罗伯逊转位 (14;21) 在一个46岁的男人身上引起了不孕不育和双胞胎缺陷. 这一案例凸显了对患有阿佐精子症和阴性双胞胎症的不孕男性进行基因检测的必要性,以及时诊断和管理.
科学领域:
- 生殖医学 生殖医学
- 人类遗传学 人类遗传学
- 内分泌学 在内分泌学.
背景情况:
- 不孕症影响许多夫妇,男性因素对其有很大影响.
- 罗伯茨的转位是男性不孕症的一个罕见但重要的原因.
- 常规性性性可以呈现出各种症状,需要进行彻底的调查.
研究的目的:
- 报告一个男性不孕症和由于平衡罗伯逊式转位 (14;21) 导致的正常性腺体不孕症的病例.
- 强调细胞遗传分析在具有特定临床表现的不育男性的诊断意义.
- 突出罗伯逊式转位对精子生成和荷尔蒙平衡的影响.
主要方法:
- 一个46岁的不育男性患者的病例报告.
- 临床检查,激素测定 (FSH,LH,),精液分析 (精子生物镜),丸超声波,骨密度计和细胞遗传学分析.
- 详细的体检,包括对二次性特征和丸体积的评估.
主要成果:
- 患者呈现不孕不育,低精子,亚精子,以及包括妇科不孕症和丸缩在内的低精子症的迹象.
- 荷尔蒙资料显示,丸激素含量较低,性腺激素水平正常 (常态性腺激素低性腺症).
- 基因分析证实了一个平衡的罗伯逊转位45,XY,t(14;21) (q10;q10).
结论:
- 均衡的罗伯逊转位会导致男性不孕症和阴性双胞胎症,影响精子生成和激素产生.
- 细胞遗传学分析对于不育男性,特别是那些患有亚精和阴性腺体缺陷症的男性的检查至关重要.
- 早期诊断罗伯茨的转位使得基因咨询和管理的阴性腺症,改善患者的结果和生活质量.
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