一名患有X链 adrenoleukodystrophy的患者呈现中央早熟性青春期:一个病例报告
Ting Ting Zhu1,2, Jin Wu1,2, Xiao Mei Sun3,4
1Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China.
Endocrine
|October 16, 2023
概括
这项研究报告了一名患有X链接上腺核缩症 (X-ALD) 的男孩的中部早发性青春期 (CPP),这是一种与ABCD1基因变异相关的过氧体疾病. 这些发现突出了X-ALD和早期青春期发作之间的新兴关联.
科学领域:
- 内分泌学 在内分泌学.
- 遗传学 是一个遗传学.
- 过氧体性疾病 过氧体性疾病
背景情况:
- 与X相关的上腺核衰竭 (X-ALD) 是一种由ABCD1基因突变引起的严重上腺核衰竭疾病.
- 它主要影响上腺,丸和中枢神经系统的白质.
- 中部早发性青春期 (CPP) 的特点是青春期的早期发作,原因是下丘脑-垂体-腺轴的过早激活.
研究的目的:
- 报告第一个有记录的中部早熟青春期 (CPP) 病例,该病例发生在X链接上腺核衰竭 (X-ALD) 患者身上.
- 调查这种共同发生的遗传基础和临床表现.
主要方法:
- 对患有X-ALD的6岁男孩进行临床评估,包括对身体发育,荷尔蒙水平和非常长链脂肪酸 (VLCFA) 的评估.
- 基因分析以确定ABCD1基因中的突变.
- 根据临床和荷尔蒙发现,应用了CPP的诊断标准.
主要成果:
- 试验物呈现出粘膜皮肤色素,上腺皮质激素升高,以及高VLCFA水平,与X-ALD一致.
- 遗传分析显示,在第8个外显子中有一个特定的ABCD1基因变异 (c.1826A>G,p.Glu609Gly).
- 患者表现出快速生长,丸扩大,阴毛发育和青春期黄素化激素 (LH) 水平,符合CPP的诊断标准.
结论:
- 这一案例确立了X关联上腺核衰竭 (X-ALD) 和中部早期青春期 (CPP) 之间的新兴关联.
- 这些发现表明,ABCD1基因突变可能在前列腺下垂体腺腺轴的过早激活中起作用.
- 需要进一步的研究,以了解这种关联的潜在机制和临床影响.
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