[Xp21连续基因删除综合征]
T P Kalashnikova1, A G Malov1, A V Veselkova2
1Academician Ye.A. Vagner Perm State Medical University, Perm, Russia.
概括
Xp21缺失综合征是一种罕见的连续基因综合征,早期出现一次性上腺功能缺陷和代谢障碍. 这一案例突出了影响11个基因的显著微删除,强调了需要遗传咨询的需要.
科学领域:
- 遗传学 遗传学 是一个
- 儿科 儿科 儿科
- 内分泌学 在内分泌学.
背景情况:
- 连续基因综合征 (CGS) 是由影响多个基因的染色体异常引起的.
- Xp21连续基因删除综合征 (Xp21.3-p21.2) 是一种罕见的CGS,报告的病例有限,主要在男性中.
- 症状的早期和快速发作是特征,通常在新生儿期出现.
研究的目的:
- 介绍一个诊断为Xp21删除综合征的男孩的临床病例.
- 详细介绍与这种综合征相关的遗传发现,临床表现和诊断挑战.
- 为了强调及时基因咨询在遗传性疾病中的重要性.
主要方法:
- 染色体微阵列分析 (CMA) 用于识别X染色体上的特定微删除.
- 系统地记录了临床数据,包括新生儿表现,代谢障碍,肝酶升高,肌病征兆和精神运动发育.
- 调查了家庭病史,包括以前的婴儿死亡和母亲诊断.
主要成果:
- 在Xp21.3-p21.2区域确定了5,306,358bp的de novo微切除,包括11个基因.
- 患者表现出早期出现的原发性上腺功能不全 (PAI),从出生开始就出现了严重的代谢障碍.
- 自免疫性肝炎和肌肉衰竭的延迟诊断发生是由于复杂的代谢和肌病性表现,以及显著的精神运动延迟.
结论:
- Xp21删除综合征可以呈现复杂的表型,包括PAI,代谢障碍和神经缺陷.
- 错误诊断是由于症状与其他疾病重叠的风险,需要全面的遗传评估.
- 早期识别和遗传咨询对受影响家庭至关重要,以防止复发并有效管理疾病.
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