在先天性腹疾病中发现了新的DGAT1突变7:一个病例报告与治疗经验
1Department of Pediatrics, The Fourth Affiliated Hospital of China Medical University, Shenyang, China.
Balkan journal of medical genetics : BJMG
|September 12, 2024
概括
这项研究确定了DGAT1基因中导致7型先天性腹疾病 (CDD7) 的两个新突变. 早期的饮食脂肪限制显著改善了患者的生长和症状.
科学领域:
- 遗传学和分子生物学
- 儿科胃肠病学 儿科胃肠病学
- 罕见疾病 罕见疾病
背景情况:
- 先天性腹疾病 (CDD) 是一种罕见的遗传性肠道疾病.
- 7型CDD (CDD7) 与二甲基糖醇-转移酶1 (DGAT1) 基因的突变有关.
- DGAT1突变与有限数量的已识别的变体有关.
研究的目的:
- 报告一个女性婴儿中CDD7的新病例.
- 为了确定与CDD7.7相关的DGAT1基因中的新突变.
- 评估低脂肪肠道饮食在控制CDD7.7方面的有效性.
主要方法:
- 进行了整个外体序列测序,以识别遗传变异.
- 桑格测序证实了DGAT1基因中的复合异质合体变体.
- 在饮食干预之前和之后监测临床数据和营养状况.
主要成果:
- 确定了两个新的DGAT1变体 (c.1215_1216delAG和c.838C>T),证实了化合物的异性.
- 患者在腹,吐,低蛋白血症和发育不良方面显著改善.
- 营养状况大大改善,体重与年龄相比和体重与长度相比的SDS在1年后大幅增加,限制脂肪饮食.
结论:
- 这一案例扩大了与DGAT1相关的CDD7.7已知的突变谱.
- 早期诊断和通过限制脂肪的肠道饮食进行干预对于管理CDD7至关重要.
- 需要对DGAT1功能和CDD7病原体进行进一步的研究.
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