Abstract:
:Mutations in Thyroglobulin (TG) are common genetic causes of congenital hypothyroidism (CH). But the TG mutation spectrum and its frequency in Chinese CH patients have not been investigated. Here we conducted a genetic screening of TG gene in a cohort of 382 Chinese CH patients. We identified 22 rare non-polymorphic variants including six truncating variants and 16 missense variants of unknown significance (VUS). Seven patients carried homozygous pathogenic variants, and three patients carried homozygous or compound heterozygous VUS. 48 out of 382 patients carried one of 18 heterozygous VUS which is significantly more often than their occurrences in control cohort (P < 0.0001). Unique to Asian population, the c.274+2T>G variant is the most common pathogenic variant with an allele frequency of 0.021. The prevalence of CH due to TG gene defect in Chinese population was estimated to be approximately 1/101,000. Our study uncovered ethnicity specific TG mutation spectrum and frequency.
journal_name
Mol Cell Endocrinoljournal_title
Molecular and cellular endocrinologyauthors
Hu X,Chen R,Fu C,Fan X,Wang J,Qian J,Yi S,Li C,Luo J,Su J,Zhang S,Xie B,Zheng H,Lai Y,Chen Y,Li H,Gu X,Chen S,Shen Ydoi
10.1016/j.mce.2016.01.007subject
Has Abstractpub_date
2016-03-05 00:00:00pages
60-6eissn
0303-7207issn
1872-8057pii
S0303-7207(16)30007-7journal_volume
423pub_type
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journal_title:Molecular and cellular endocrinology
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