Familial Mediterranean Fever (FMF), also known as an autoinflammatory syndrome, is the most frequent periodic fever syndrome, affecting not only eastern Mediterranean people such as non-Ashkenazi Jews, Armenians, Arabs, and Turks but also reported throughout the world’s populations.
Genetics/Basic Defects
- 1.
An autosomal recessive disorder caused by missense mutations in the MEFV gene, located on the short arm of chromosome 16 (16p13.3). The MEFV gene is responsible for encoding a protein called pyrin or marenostrin.
- 2.
Pathogenesis
- a.
Partially elucidated only after the identification of pyrin or marenostrin
- b.
A new macromolecular complex, called inflammasome, seems to play a major role in the control of inflammation and it might be involved in the pathogenesis of FMF.
- a.
- 3.
Phenotype expression of the FMF should depend on the presence of a homozygote or heterozygote genotype for the MEFV gene mutations.
- 4.
Genotype-phenotype correlation, however, is complex due to influence of genotype...
References
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(2012). Familial Mediterranean Fever. In: Chen, H. (eds) Atlas of Genetic Diagnosis and Counseling. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-1037-9_87
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DOI: https://doi.org/10.1007/978-1-4614-1037-9_87
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