狗的XY性发育障碍:通过遗传病理学,基因型和造型型的案例研究
Maria Eduarda Mirabelo de Oliveira1, Marcella Araujo Cebim1, Mariana Semião Francisco Talib1
1Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil.
Veterinary research communications
|February 4, 2025
概括
这项研究详细介绍了一种具有模两可的生殖器官的男性伪人性异性恋的狗病例. 基因分析证实了XY性别,但这只狗的丸功能不佳,尾扩大,表明潜在的荷尔蒙生物合成障碍.
科学领域:
- 兽医医学 兽医医学 兽医医学
- 遗传学 遗传学 是一个
- 内分泌学 在内分泌学.
背景情况:
- 动物的性别模两可,带来了诊断上的挑战.
- 了解性发育障碍 (DSD) 对兽医护理至关重要.
- 狗DSD病例提供了对复杂的遗传和荷尔蒙相互作用的见解.
研究的目的:
- 报告一个罕见的性模两可的病例,发生在一个3岁的混血狗身上.
- 调查观察到的表型异常的病因基础.
- 在一只狗的伪雌性性恋病例中关联临床,病理和遗传发现.
主要方法:
- 身体检查和超声波用于初步评估.
- 探索性腹腔切除术可视化内部生殖结构.
- 生殖组织的组织病理学分析.
- 细胞遗传分析和性别基因定型 (XY).
主要成果:
- 具有阴茎状结构的表型模两可,缺血症和明显的阴道特征.
- 在子宫外的丸和内在识别的副丸.
- 组织病理学揭示了丸低成形,皮质膜发育不良,以及扩张的皮质膜导管.
- 细胞遗传学显示了XY性别确定时的体积变异 (染色体数量的变化).
- 确诊的男性伪雌雄性性恋症,丸变性和高性脊髓炎.
结论:
- 该病例代表了性发育的显著XY障碍 (男性伪性恋).
- 现型模两可是由于丸发育不良和皮膜结构异常引起的.
- 研究结果表明,男性荷尔蒙生物合成的潜在障碍是潜在的原因.
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