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Only C reactive protein remained associated in an independent way. Serum visfatin was not associated with the accumulation of metabolic syndrome factors or the diagnosis of metabolic syndrome in obese female subjects.

A transition of G to A at codon 54 of FABP2 results in an amino acid substitution (Ala54 to Thr54). This polymorphism was associated with some cardiovascular risk factors. The aim of our study was to investigate the influence of Thr54 polymorphism in the FABP2 gene on obesity anthropometric parameters and cardiovascular risk factors. A population of 226 obesity (body mass index >30) nondiabetic outpatients were analyzed. An indirect calorimetry, tetrapolar electrical bioimpedance, blood pressure, a serial assessment of nutritional intake with 3 days of written food records, and biochemical analysis (lipid profile, adipocytokines, insulin, CRP, and lipoprotein-a) were performed. The statistical analysis was performed for the combined ALA54/THR54 and THR54/THR54 as a mutant group and wild type ALA54/ALA54 as a second group. Two-hundred and twenty-six patients gave informed consent and were enrolled in the study. The mean age was 44.2+/-16 years and the mean BMI 35.1+/-5.1, with 63 males (28.3%) and 163 females (71.7%). One-hundred and thirteen patients (50%) had the genotype ALA54/ALA54 (wild group) and 113 (50%) patients had the genotype ALA54/THR54 (91 patients, 40.2%) or THR54/THR54 (22 patients, 9.8%) (mutant group). The ANOVA analysis of the three groups ( ALA54/THR54, THR54/THR54 and ALA54/ALA54) shows a higher levels of fat mass in Thr54/Thr54 group (45.6+/-14.6 kg) than Ala54/Ala54 (37.5+/-11.2 kg: p<0.05), without differences with Ala54/Thr54 group (41.2+/-13.5 kg). CRP, IL-6, and lipoprotein-a were higher in mutant group ( ALA54/THR54, THR54/THR54) than in wild group ( ALA54/ALA54). The novel finding of this study is the association of the Thr54/Ala54 and Thr54/Thr54 FABP2 phenotypes with higher levels of C reactive protein, IL6, and lipoprotein-a. Further studies are needed to explain the role of this polymorphism in different populations.

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