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在POMC中双性致病变体可以导致与严重肥胖相关的合 pituitary 激素缺乏症
Géraldine Vitellius1,2, Christine Poitou3,4,5, Karine Clément3,4,5
1Service diabétologie endocrinologie nutrition, CHU Robert Debré, rue du general Koenig, 51100 Reims, France.
European journal of endocrinology
|June 13, 2025
概括
亲opiomelanocortin基因 (POMC) 的双变异可能导致结合性垂体激素缺乏症 (CPHD). 这项研究强调了POMC基因测序在CPHD病例中的重要性,特别是那些患有早期肥胖症的人.
科学领域:
- 遗传学 是一个遗传学.
- 内分泌学 在内分泌学.
- 分子生物学分子生物学
背景情况:
- 亲opiomelanocortin (POMC) 基因中的双变异与低皮质素,低颜色和早期肥胖症有关.
- 结合性垂体激素缺乏症 (CPHD) 是一种复杂的内分泌疾病,影响多个垂体轴.
研究的目的:
- 在携带罕见致病性或可能致病性 (P/LP) POMC 变体的个体中调查CPHD的患病率.
- 分析双性POMC变异患者的临床表现和内分泌结果.
主要方法:
- 案例报告和系统文献审查.
- 一个家庭的遗传分析,其中有两个表亲患有童年开始的肥胖症和CPHD.
- 使用文献和人类基因突变数据库 (HGMD) 数据对双性POMC变异携带者的CPHD评估.
- 收集临床和生物数据,包括垂体轴参与,肥胖发作和成像.
主要成果:
- 两位患有复合异合体POMC变体的表亲患上了CPHD,随后出现了甲状腺功能低下症,生长激素缺乏症和阴性双胞胎症.
- 在41名双性POMC变异患者中,40%出现了CPHD,严重的早期肥胖症和低皮质醇症.
- 最常见的是生长激素缺乏 (75%),其次是甲状腺和淋巴状腺缺乏 (62.5%). 下垂体成像显示没有异常.
结论:
- CPHD可以发生在双样致病性POMC变体的携带者身上.
- 完整的POMC基因测序对于CPHD诊断至关重要,除了评估新生儿低皮质素化中的所有垂体轴外.
- 塞特梅拉诺提德可能会影响下丘脑-垂体功能和生育能力,而不仅仅是体重调节.
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