Identification of Maturity-Onset-Diabetes of the Young (MODY) mutations in a country where diabetes is endemic.

Identification of Maturity-Onset-Diabetes of the Young (MODY) mutations in a country where diabetes is endemic.
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在糖尿病流行的国家鉴定青少年发病型糖尿病 (MODY) 突变。

DOI:
10.1038/s41598-021-95552-z
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发表时间:
2021-08-09
期刊:
影响因子:
4.6
通讯作者:
Al-Mulla F
Al-Mulla F
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Al-Kandari H;Al-Abdulrazzaq D;Davidsson L;Nizam R;Jacob S;Melhem M;John SE;Al-Mulla F

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科威特对导致青年成熟型糖尿病(MODY)的基因变异进行了研究。一家新成立的国家转介诊所,达斯曼糖尿病研究所(DDI-NRC),通过全外显子测序对来自31个疑似MODY家族的45名成员进行了评估。45个样本中的33个在英国埃克塞特大学的DDI-NRI(https://www.diabetesgenes.org/))进行了独立测序,方法是使用靶向21基因小组方法。GCK、HNF1A、HNF1B、HNF4a和PDX1的致病突变在7个家系中确诊为MODY,在该队列中的总阳性率为22.6%。在PDX1、HNF1B和HNF1B三个家族中发现了新的变异体。在该队列中,多重连接依赖的探针扩增分析不会增加测序阴性病例中MODY变异的检测率。在高度选择的家族性自身抗体阴性糖尿病中,已知的MODY基因只是一小部分,77.3%的家族性病例尚未描述因果变异。
Genetic variants responsible for Maturity-Onset-Diabetes of the Young (MODY) in Kuwait were investigated. A newly established a National Referral Clinic, the Dasman Diabetes Institute (DDI-NRC), assessed forty-five members from 31 suspected MODY families by whole exome sequencing. Thirty-three of the 45 samples were independently sequenced at the DDI-NRI, Exeter University, UK (https://www.diabetesgenes.org/) using targeted 21-gene panel approach. Pathogenic mutations in GCK, HNF1A, HNF1B, HNF4A, and PDX1 confirmed MODY in 7 families, giving an overall positivity rate of 22.6% in this cohort. Novel variants were identified in three families in PDX1, HNF1B, and HNF1B. In this cohort, Multiplex Ligation-dependent Probe Amplification assay did not add any value to MODY variant detection rate in sequencing negative cases. In highly selected familial autoantibody negative diabetes, known MODY genes represent a minority and 77.3% of the familial cases have yet to have a causal variant described.
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