IL6 and diabetes mellitus: We observed a significant positive association between PM10 and diabetes among homozygous carriers of the pro-inflammatory major G-allele of IL6 -572G > C [Odds ratio: 1.53; 95 % confidence interval (1.22, 1.92); Pinteraction (additive) = 0.003 and Pinteraction (recessive) = 0.006].