基因分析和管理家族高胆固醇血症血统与多基因变异:案例报告
Yu Han1,2,3, Lin Zhang1,2,3,4, Huimin Tao1,2,3
1Affiliated Xuzhou Clinical College of Xuzhou Medical University, Xuzhou, China.
Medicine
|August 11, 2023
概括
这项研究确定了家族性高胆固醇血症 (FH) 的多基因变异,包括LDLR,APOB和EPHX2基因. 整体外基组测序和遗传咨询对于诊断FH和指导受影响家庭至关重要.
科学领域:
- 遗传学 遗传学 是一个
- 心血管疾病 心血管疾病
- 医学诊断 医学诊断 医学诊断
背景情况:
- 家族性胆固醇高血症 (FH) 是一种遗传性疾病,通常是由低密度脂蛋白受体 (LDLR) 基因的突变引起的.
- 本报告详细介绍了一种FH血统,该血统表现出涉及LDLR,阿波利波蛋白B (APOB) 和环氧化酶2 (EPHX2) 基因的多基因变异.
研究的目的:
- 为了研究家族高胆固醇血症的遗传基础,在一个具有多基因变异的血统中.
- 评估整个外体序列 (WES) 在诊断FH中的作用及其对产前遗传咨询的影响.
主要方法:
- 在一个家庭中,对一个被诊断患有FH的10岁男孩进行了家谱分析和整个外体序列 (WES) 测序.
- 对父母提供了基因咨询,以诊断和确定变异的含义.
主要成果:
- 鉴定出一种新型化合物异性LDLR突变 (c.1009G>T和c.68-2A>G),从父母双方遗传.
- 试验对象还携带一种母性APOB基因变异 (c.1670A>G) 和一种父性EPHX2基因变异 (c.548dup).
- 实验对象的妹妹被证实具有相同的复合异性LDLR突变,但缺乏APOB和EPHX2变体.
结论:
- 整体外基因组测序与临床发现相结合,对于FH诊断至关重要.
- 对FH产前遗传检测结果在遗传咨询中可能会带来挑战.
- 长期指导和早期干预对受FH影响的家庭至关重要.
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