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FM is associated with missene mutations in MRFV gene & elevated IL-1beta plasma level

Discussion in 'Other Health News and Research' started by shrewsbury, Apr 9, 2010.

  1. shrewsbury

    shrewsbury member

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    Bernice A. Melsky posted this to CO-CURE Jan 8 2010

    [if: trying to catch up here on postings! just a tad behind]

    Missense mutations in the MEFV gene are associated with fibromyalgia syndrome and correlate with elevated IL-1beta plasma levels.

    PLoS One. 2009 Dec 30;4(12):e8480.

    Feng J, Zhang Z, Li W, Shen X, Song W, Yang C, Chang F, Longmate J, Marek C, St Amand RP, Krontiris TG, Shively JE, Sommer SS.

    Division of Molecular Genetics, Beckman Research Institute, City of Hope, Duarte, California, United States of America.

    PMID: 20041150


    BACKGROUND: Fibromyalgia syndrome (FMS), a common, chronic, widespread musculoskeletal pain disorder found in 2% of the general population and with a preponderance of 85% in females, has both genetic and environmental contributions. Patients and their parents have high plasma levels of the chemokines MCP-1 and eotaxin, providing evidence for both a genetic and an immunological/inflammatory origin for the syndrome (Zhang et al., 2008, Exp. Biol. Med. 233: 1171-1180).

    METHODS AND FINDINGS: In a search for a candidate gene affecting inflammatory pathways, among five screened in our patient samples (100 probands with FMS and their parents), we found 10 rare and one common alleles for MEFV, a gene in which various compound heterozygous mutations lead to Familial Mediterranean Fever (FMF). A total of 2.63 megabases of genomic sequence of the MEFV gene were scanned by direct sequencing. The collection of rare missense mutations (all heterozygotes and tested in the aggregate) had a significant elevated frequency of transmission to affecteds (p = 0.0085, one-sided, exact binomial test). Our data provide evidence that rare missense variants of the MEFV gene are, collectively, associated with risk of FMS and are present in a subset of 15% of FMS patients. This subset had, on average, high levels of plasma IL-1beta (p = 0.019) compared to FMS patients without rare variants, unaffected family members with or without rare variants, and unrelated controls of unknown genotype. IL-1beta is a cytokine associated with the function of the MEFV gene and thought to be responsible for its symptoms of fever and muscle aches.

    CONCLUSIONS: Since misregulation of IL-1beta expression has been predicted for patients with mutations in the MEFV gene, we conclude that patients heterozygous for rare missense variants of this gene may be predisposed to FMS, possibly triggered by environmental factors.
     
    merylg likes this.
  2. merylg

    merylg Senior Member

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    Sydney, NSW, Australia
    Looking into Familial Mediterranean Fever (FMF). I guess there is testing for common mutations of MEFV. I guess what all these conditions FMF, FM, ME/CFS etc have in common is "Inflammation"....and life is all about reducing this to prevent things like cancer, amyloidosis, dementia, parkinson's, organ failure etc.
     

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