与KDM2B相关的神经发育障碍 一个支持CxxC域表型的案例系列,重点是眼睛和皮肤特征
Adriana Gomes1, Álvaro Martín-Rodríguez1, Miguel Del Campo1
1Division of Genetics and Dysmorphology, University of California, San Diego, California, USA.
American journal of medical genetics. Part A
|December 29, 2025
概括
与KDM2B相关的神经发育障碍涉及影响KDM2B基因的遗传变异,导致发育延迟和明显的身体特征. 整合基因组和表观基因组分析有助于诊断和理解这种表观遗传障碍.
科学领域:
- 遗传学 遗传学 是一个
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 神经发育障碍 神经发育障碍
背景情况:
- 与KDM2B相关的神经发育障碍是一种罕见的孟德尔障碍,影响表观遗传调节.
- 在KDM2B中的致病变体,特别是CxxCDNA结合域中的致病变体,与特定的表观遗传特征有关.
- 临床特征包括全球发育迟缓,智力障碍,先天性异常和系统性问题.
研究的目的:
- 介绍KDM2B相关的神经发育障碍的三个儿科病例.
- 调查CxxC域中的KDM2B变体与疾病的表观遗传特征之间的关联.
- 突出重复的临床表现,包括眼睛和皮肤特征.
主要方法:
- 三名患有KDM2B变异的儿童的临床病例系列.
- 基因分析以确定KDM2B CxxC域中的异质合体变异.
- 针对性的甲基化分析,以评估特定的表观遗传特征.
主要成果:
- 这三位患者都在KDM2B CxxC域中呈现异合体变异.
- 两名患者表现出异常的甲基化模式,与KDM2B疾病的表观遗传特征一致.
- 经常出现的特征包括发育迟缓,食困难,血管瘤和近视性眼.
结论:
- 这些发现支持CxxC域中的KDM2B变体是导致KDM2B相关的神经发育障碍的.
- 整合基因组和表观基因组分析对于这种疾病的变异解释至关重要.
- 眼睛和皮肤表现是KDM2B相关的神经发育障碍的一致特征.
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