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Observation of juvenile idiopathic arthritis in children with MEVF gene mutations in Armenia
Pediatric Rheumatology volume 6, Article number: P89 (2008)
The prevalence of Familial Mediterranean fever (FMF) in Armenian people is very high. Acute recurrent or chronic arthritis are possible manifestations of FMF and differentiation from juvenile idiopathic arthritis (JIA) is important.
To study the correlation of MEFV mutations with disease susceptibility in patients with JIA
Retrospective chart review of all patients with JIA for MEFV mutations and JIA characteristics.
MEFV analysis was available for 44/69 patients, 7/8 with systemic onset(So) JIA and 37/61 with other types of JIA. MEFV mutations were found in 27/44 patients tested (61%). 3/7 patients (43%) with SoJIA had MEFV mutations, all heterozygous. Of the 24/37 patients (65%) with other forms of JIA had confirmed MEFV mutations and 12/24 had typical episodes of FMF. With colchicine in addition to standard JIA treatment FMF episodes resolved but they continue to have refractory arthritis. Of the 12 patients without typical FMF episodes 10 had only arthritis and 2 had rare episodes of thoracic pain in addition to the arthritis. In 9/12 patients (10 with arthritis only and 2 with thoracic pain) a heterozygous MEFV mutation was found, in 1 patient (8%) homozygous M694V and 2 (17%) had compound heterozygous M694V/M680I mutations.
In our Armenian JIA patients 61% had MEFV mutations, more than expected. In a population with a high prevalence of FMF MEFV mutations should be tested in children with JIA even in the absence of typical FMF symptoms as chronic arthritis may be the only symptom of FMF.
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Gayane, K., Saurenmann, R., Gayane, A. et al. Observation of juvenile idiopathic arthritis in children with MEVF gene mutations in Armenia. Pediatr Rheumatol 6, P89 (2008). https://doi.org/10.1186/1546-0096-6-S1-P89
- Juvenile Idiopathic Arthritis
- Familial Mediterranean Fever
- Retrospective Chart Review