显微镜丸精子提取在46,XY性别发育的差异由5-α减少酶2型缺乏引起的5-α减少酶类型2
Joao Paulo Greco Cardoso1, Berenice Bilharinho Mendonça2, William Carlos Nahas1
1Divisão de Urologia, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brasil.
Archives of endocrinology and metabolism
|February 13, 2025
概括
显微丸精子提取 (micro-TESE) 可能为患有5-α减少酶2型缺乏症 (5ARD2) 的男性提供生育选择,这是一种性别发育差异的形式. 早期的手术纠正对于保护这些独特患者的生育潜力至关重要.
科学领域:
- 生殖内分泌学 生殖内分泌学
- 遗传学 是一个遗传学.
- 泌尿器科 泌尿器科 泌尿器科 泌尿器科
背景情况:
- 46,性发育的XY差异 (DSD) 由于5-α减少酶2型缺乏 (5ARD2) 通常表现为未下降的丸和不成熟的生殖器官.
- 虽然在一些5ARD2病例中生育是可能的,但辅助生殖数据有限,结果严重取决于丸位置和尿道解剖学.
研究的目的:
- 描述显微丸精子提取 (micro-TESE) 对于5ARD2.2患者的辅助生殖的应用和潜力.
- 强调手术时机和手术方式在5ARD2患者的生育能力保护方面的重要性.
主要方法:
- 在两个患有5ARD2的患者中对微型TESE进行描述性分析.
- 一个33岁的男性成功获取精子,但胚胎发育失败,一个28岁的男性没有成功获取精子.
- 对丸组织学发现的审查 (晚期精子发生停止和仅塞尔托利细胞模式).
主要成果:
- 微型TESE在5ARD2患者中显示出作为辅助生殖工具的潜力.
- 一名患者获得了精子提取,但随后的细胞体内精子注射导致胚胎发育失败.
- 另一位患者的精子提取没有成功,丸组织学显示只有塞尔托利细胞的模式.
结论:
- 微型TESE对于5ARD2患者可能是一个可行的选择.
- 生殖尿路重建手术的时间 (hypospadias,cryptorchidism) 显著影响生育能力的保护.
- 建议对未下降的丸和尿道异常进行早期手术,以最大限度地提高5ARD2个体的生育潜力.
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