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Published online before print December 30, 2005
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*Gruppo di Studio sull’Immunosenescenza, Dipartimento di Biopatologia e Metodologie Biomediche, and Dipartimento di Medicina Interna, Malattie Cardiovascolari e Nefrourologiche, Università di Palermo, Italy; Heller Institute of Medical Research, Sheba Medical Center, Tel Hashomer, Israel; and Dipartimento di Patologia Sperimentale and Centro Interdipartimentale "L. Galvani," Università di Bologna, and Istituto Nazionale di Riposo e Cura per Anziani, Ancona, Italy
@ To whom correspondence should be addressed. E-mail: marcoc{at}unipa.it.
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Abstract |
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A proinflammatory genotype seems to contribute significantly to the risk of developing coronary heart disease (CHD). Conversely, the susceptibility alleles to inflammatory disease should be infrequent in the genetic background favoring longevity. In fact, in a modern environment, attainment of longevity is facilitated by an anti-inflammatory status. To evaluate whether inflammatory alleles of pyrin, the gene responsible for familial Mediterranean fever (FMF) may play an opposite role in CHD and in longevity, we examined three FMF-associated mutations, M694V (A2080G), M694I (G2082A), and V726A (T2177C), encoded by the FMF gene (MEFV) in 121 patients affected by acute myocardial infarction (AMI), in 68 centenarians, and in 196 age-matched controls from Sicily. None of the Sicilian subjects studied carried the V726A and the M694I FMF-related mutations. The proinflammatory M694V (A2080G) mutation was the only one we found, which was over-represented significantly in CHD patients and under-represented in oldest old, and intermediate values were in healthy, young controls. After adjustment for well-recognized AMI risk factors, the M694V allele still predicted a significant risk to develop AMI. So, according to these results, we suggest that carrying the proinflammatory M694V pyrin allele may increase the risk to develop AMI. Conversely, the wild-type pyrin genotype may predispose to a greater chance to live longer in a modern environment with reduced pathogen load and improved control of severe infections by antibiotics. All these data indicate a strong relationship among inflammation, genetics, CHD, and longevity.
Key Words: AMI • inflammation • MEFV
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