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  • Title: The report of sequence analysis on familial Mediterranean fever gene (MEFV) in South-eastern Mediterranean region (Kahramanmaraş) of Turkey.
    Author: Kilinc M, Ganiyusufoglu E, Sager H, Celik A, Olgar S, Cetin GY, Davutoglu M, Altunoren O.
    Journal: Rheumatol Int; 2016 Jan; 36(1):25-31. PubMed ID: 26215181.
    Abstract:
    Familial Mediterranean fever (FMF) is defined as an inherited and autosomal recessive disease. Many researches have been done about this subject, and we believe that it should be necessary to focus on phenotype-genotype correlation, especially novel mutation types. We aim to announce the results of FMF sequence analysis in Kahramanmaras/Turkey. The number of participants is 380 males and 451 females who clinically diagnosed as FMF subjects of different age groups. Genomic sequences of exons 2 and 10 and in some cases exon 3 of the MEFV gene were scanned for mutations by sequence analyzer. The most common mutation identified in 230 (57.07 %) patients is heterozygous. The frequencies of mutation types in heterozygous subjects are R202Q (39.13 %), E148Q (18.70 %), M680I (16.52 %), M694V (13.91 %), and V726A (4.78 %), respectively. The most striking point among the compound heterozygous subjects is R202Q/M694V mutation type found at the highest rate (32 subjects). Fever and peritonitis are the most frequent signs of homozygous M694V and combine heterozygous mutations. Interestingly, the rate of homozygous mutation types (M694V/M694V+ R202Q/R202Q) is 96.70 % among all compound homozygous mutation types. The most frequent rate of homozygous patients is M680I mutation types (68.42 % in all homozygous mutation types). Two novel mutations were found in this study: N206K (p.Asn206Lys) and S208T (p.Ser208Tyr). Our findings in this study on the FMF sequence analysis are different from the results obtained from the other regions of Turkey.
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