在IRS4中的新型X链接变异c.1772delG (p.G591fs*20) 在两个患有中央甲状腺功能低下症的相关患者中
1Division of Pediatric Endocrinology, Tekirdag Dr. İsmail Fehmi Cumalioglu City Hospital, Tekirdag, Turkey.
Molecular syndromology
|October 6, 2025
概括
中枢甲状腺功能低下症 (CeH) 是一种罕见的疾病. 这项研究确定了一种新型X链接的IRS4基因变异,在两名男性患者中引起CeH,并指出女性携带者的潜在甲状腺影响.
科学领域:
- 内分泌学 在内分泌学.
- 遗传学 是一个遗传学.
- 分子生物学分子生物学
背景情况:
- 中枢甲状腺功能低下症 (CeH) 是由垂体TSH或垂体TRH受损导致的.
- CeH是罕见的,影响1:16,000-100,000个体,诊断可能具有挑战性,特别是对于孤立的病例.
- 虽然已知CeH的一些遗传原因,但许多仍未确定. 最近,IRS4基因变异与孤立的CeH.有关.
研究的目的:
- 在IRS4基因中报告一种新的X链接移变异,导致中央甲状腺功能低下症.
- 研究一个家庭中受影响的个体和携带者的临床和分子特征.
- 突出基因检测在诊断CeH中的作用.
主要方法:
- 临床评估两个相关的男性患者的中央甲状腺功能低下症.
- 基因分析用于识别IRS4基因中的变异.
- 在患者和异卵性母体携带者中评估甲状腺功能.
主要成果:
- 在两名患有CeH的土耳其男性患者的IRS4基因中识别了一种新的X链接移变异.
- 发现该变种在男性患者中会导致半身性CeH.
- 甲状腺功能被观察到在异卵性母体携带者中受到轻微影响.
结论:
- 一种新的IRS4基因变异是X链接的中央甲状腺功能低下症的原因.
- 基因检测对于诊断CeH至关重要,特别是孤立的形式.
- 异卵性女性携带IRS4变种的携带者可能会表现出微妙的甲状腺功能障碍.
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