09 August 2019 : Clinical Research
Genetic Analysis of SLC12A3 Gene in Chinese Patients with Gitelman Syndrome
Yanmei Zeng1CDEFG, Ping Li1BCDEF, Shu Fang1BC, Chunyan Wu1D, Yudan Zhang1E, Xiaochun Lin1F, Meiping Guan1ACDG*DOI: 10.12659/MSM.916069
Med Sci Monit 2019; 25:5942-5952
Abstract
BACKGROUND: The incidence of Gitelman syndrome (GS) has been increasing in our hospital. The aim of this study was to explore the diagnostic accuracy and features of SLC12A3 gene in Chinese patients with GS.
MATERIAL AND METHODS: We searched the literature about Chinese patients with GS in the PubMed database up to July 2018 and also included 8 GS Chinese patients from our hospital in our analysis that explored the features of SLC12A3 gene. We divided all the patients into 3 groups according to diagnostic consensus. Complete compliance was defined to mean containing 2 allelic mutations, partial compliance to mean one allelic mutation, and clinical compliance to mean no mutations.
RESULTS: Totally, 137 patients were enrolled in this study and 90 mutations were counted. Missense mutations accounted for over 72% in Chinese GS patients and the most common one was Thr60Met. According to the consensus, there were 102 patients (74.5%) in the complete compliance group, 31 patients (22.6%) in the partial compliance group, and only 4 patients (2.9%) in the clinical compliance group.
CONCLUSIONS: The SLC12A3 gene analysis in Chinese GS patients revealed that the most common mutation was Thr60Met, one of the missense mutations. Most of the patients were in the complete compliance group (i.e., 2 allelic mutations); the other cases might be explained by gene rearrangement.
Keywords: DNA Mutational Analysis, Gitelman syndrome, Solute Carrier Family 12, Member 3, Alleles, Asians, Genetic Predisposition to Disease, genetic testing, Mutation, Mutation, Missense, Polymorphism, Single Nucleotide
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