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Biochemical Measurement of Neonatal Hypoxia
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明显的新生儿高氨血和肝合成功能障碍:严重的MEGDHEL综合征病例报告
Ina Kirchberg1, Elke Lainka2, Andrea Gangfuß3
1Department of Pediatric Intensive Care, Children's Hospital, University of Duisburg-Essen, Essen, Germany.
Frontiers in pediatrics
|March 6, 2024
概括
梅格德尔综合征是一种罕见的代谢障碍,由SERAC1基因变异引起,在婴儿中表现为严重的肝衰竭. 早期诊断和支持性护理对于受影响的家庭至关重要,尽管缺乏治疗方法.
科学领域:
- 遗传学 遗传学 是一个
- 代谢障碍 代谢障碍 代谢障碍
- 儿科 儿科 儿科
背景情况:
- 梅格德尔综合征是一种罕见的自体递归代谢障碍,其特征是3甲基葡萄糖酸性尿,聋,肝病,脑病和李氏状综合征.
- 它是由SERAC1基因中的双样致病变体引起的.
- 由于不特定的症状和各种临床表现,诊断具有挑战性,婴儿病例往往呈现严重的疾病过程,包括急性肝衰竭.
研究的目的:
- 为了突出MEGDHEL综合征的诊断挑战.
- 为了强调考虑SERAC1缺乏症在新生儿中具有无法解释的肝功能衰竭的重要性.
- 强调需要采用多学科方法和对受影响家庭进行遗传确认.
主要方法:
- 一个新生儿患有严重的肝衰竭,高血和低血糖的案例介绍.
- 代谢诊断显示乳酸酸和增加3甲基葡萄糖酸的分泌.
- 死后三组全基因组分析以确定遗传原因.
主要成果:
- 新生儿出现严重的肝衰竭,高血和低血糖症,而没有过高的氨基酸酶或胆固醇酶.
- 代谢检查显示出明显的乳酸酸和尿液中增加的3甲基葡萄糖酸.
- 尸检后的遗传分析揭示了SERAC1的同卵性致病变体,证实了SERAC1缺陷和婴儿MEGDHEL综合征.
结论:
- 在新生儿患有肝病或急性肝功能衰竭,缺乏典型的胆固醇酶或转氨酶升高迹象时,应考虑SERAC1缺乏.
- 初始管理涉及对疑似代谢障碍的支持性护理,遗传确认对于计划生育至关重要.
- 虽然没有治愈方法,但对患有MEGDHEL综合征的患者来说,多学科的支持性管理是必不可少的.
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