RT Journal Article SR Electronic T1 MEFV Mutations Modify the Clinical Presentation of Henoch-Schönlein Purpura JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 2427 OP 2429 DO 10.3899/jrheum.080405 VO 35 IS 12 A1 Z. BÝRSÝN ÖZÇAKAR A1 FATOS YALÇINKAYA A1 NÝLGÜN ÇAKAR A1 BANU ACAR A1 ÖZGÜR KASAPÇOPUR A1 DENÝZ ÜGÜTEN A1 DERYA SOY A1 NAZLI KARA A1 NERMÝN UNCU A1 NÝL ARÝSOY A1 MESÝHA EKÝM YR 2008 UL http://www.jrheum.org/content/35/12/2427.abstract AB Objective To investigate the prevalence of MEFV gene mutations in Turkish patients with Henoch-Schönlein purpura (HSP) but with no symptoms of familial Mediterranean fever (FMF). In addition, we assessed the clinical and laboratory characteristics of HSP patients with and without MEFV mutations. Methods Eighty pediatric patients with HSP (44 boys and 36 girls) were enrolled. Blood for mutation analysis was obtained either at the time of the diagnosis of HSP or during followup visits in previously diagnosed patients. No patient had the diagnosis of FMF in their history and in the followup period. Exon 10 of the MEFV gene was screened, together with p.E148Q mutation analysis. Results Twenty-seven (34%) patients were found to be heterozygous for one of the screened MEFV mutations; p.M694V in 16, p.M680I in 5, p.V726A in 3, and p.E148Q in 3 patients. Patients with MEFV mutations were younger than those without mutations and they had edema and arthritis more frequently. Also, the frequencies of elevated erythrocyte sedimentation rate and C-reactive protein values were found to be significantly higher in patients who had MEFV mutations. Conclusion Alterations in the MEFV gene are important susceptibility factors for the development of HSP and also affect the clinical presentation of it.