| Bonyadi M, Esmaeili M, Jalali H, Somi MH, Ghaffari A, Rafeey M,
Sakha K, Lotfalizadeh N, Pourhassan A, Khoshbaten M, Ardalan MR,
Laghaeian N. MEFV mutations in Iranian Azeri Turkish patients with
familial Mediterranean fever.
Clin Genet 2009: 76: 477–480. © John Wiley & Sons A/S, 2009
Familial Mediterranean fever (FMF) is an autosomal recessive
autoinflammatory disorder with more than 60 disease-associated mutations
in the responsible gene, MEFV. In the present study, we determined 15
MEFV mutations in Iranian Azeri Turkish FMF patients. Five hundred and
twenty-four unrelated patients were tested for 15 known mutations in the
MEFV gene using amplification refractory mutation system-polymerase
chain reaction and polymerase chain reaction-restriction fragment length
polymorphism methods. Thirty-five different genotypes were characterized
among the studied patients. Of the alleles investigated, the most common
mutation was p.M694V (42.4%), followed by p.V726A (17%), p.E148Q
(16.2%), and p.M680I (c.2040G>C) (15.2%). The p.R761H mutation
(4.7%) was found to be the most frequent among the rare mutations. The
mutations p.M680I (c.2040G>A), p.I692del, p.M694del and p.K695R
were not found in this cohort. The remaining mutations account for 7.7%
of the identifiable mutations. Five different types of complex alleles were
also identified. The results show the diversity and the frequency of the
mutations in the Iranian Azeri Turkish FMF patients. The p.R761H
mutation is rather prevalent in Azeri Turks; therefore, it should be included
in the routine molecular diagnosis of FMF patients from this ethnic group |