Dietary acrylamide intake and risk of renal cell carcinoma in two large prospective cohorts
A partir des données des cohortes prospectives "Health Professionals Follow-up Study" et "Nurses' Health Study", cette étude évalue l'association entre une consommation d'acrylamide d'origine alimentaire et le risque de carcinome à cellules rénales
Background: Accumulating evidence suggests that dietary acrylamide intake is not associated with the risk of most cancers in humans. However, a meta-analysis of five epidemiological studies found a suggestion of an increased risk of kidney cancer with higher dietary acrylamide intake. Methods: We investigated this association in the prospective Health Professionals Follow-up Study (1986-2014) and Nurses' Health Study (1980-2014) cohorts. Dietary acrylamide intake was calculated based on 46 acrylamide-containing foods reported on food frequency questionnaires completed every four years. The associations with the incidence of total and fatal renal cell carcinoma (RCC; n=292 / 84 HPFS, n=337 / 87 NHS) during more than two decades of follow-up were assessed using Cox proportional hazards models adjusting for potential confounders. Results: There was no association between cumulative average or baseline acrylamide intake and the risk of total or fatal RCC risk in men or women. Acrylamide intake was also not associated with RCC risk among never-smokers, nor was it associated with the risk of clear cell RCC. Conclusions: Dietary acrylamide was not associated with risk of RCC in two long-term, prospective cohorts with repeated measures of dietary intake. Impact: This analysis of RCC adds to the body of evidence that dietary acrylamide is not an important cancer risk factor in humans.