A Heterozygous Mutation M694V in the MEFV Gene and HLA-B27 Negative Spondyloarthritis: The Chicken Egg Paradox?
There is evidence that the familial Mediterranean gene (MEFV) M694V mutation plays a role in the susceptibility to Spondyloarthritis (SpA). There is an increased prevalence of SpA among Familial Mediterranean fever (FMF) patients, especially in human leukocyte antigen (HLA) B27 negative patients carrying the MEFV M694V mutation.