Unlabelled: THE PURPOSE OF THE REVIEW: Analyze the basic data on the role of obesity in the pathogenesis of pancreatic cancer (PC) and the modern mechanisms of this association.

Recent Literature Data: In the European Union and in Russia incidence of pancreatic diseases increases, such pancreatic cancer (PC) ranks 10th among cancer diseases. Obesity is a risk factor for not only of severe acute pancreatitis, but also PC at that independently of diabetes. In a meta-analysis the PC risk in obese increased by 47%, while the person with a central obesity have a higher PC risk compared to those with a peripheral type of obesity (odds ratio = 1,45, 95% CI: 1,02-2,07), but association between BMI and PC risk in this Japanese population may be different from that in Western populations, sometimes inversely. The link between obesity and PC is explained by insulin resistance and hyperinsulinemia: was proved a direct correlation between the level of circulating C-peptide and PC, low levels of serum adiponektin and leptin increase the PC risk. There are also genetic risk factors for PC: a statistically significant interaction between IVS1-27777C> and IVS1-23525A>T genotypes of the FTO gene with obesity and the PC risk: AA genotype in patients with BMI < 25 kg/m2 reduced PC risk by 22%-28% (p < 0,0001), and with BMI ≥ 25 kg/m2 was associated with 54%-60% increased PC risk (p < 0,0015). Lifestyle factors (smoking, consumption of saturated fats, etc.) increase the PC risk.

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