Genetic contributions to the association between adult height and head and neck cancer: a Mendelian randomization analysis

Pastorino, R. et al. (2018) Genetic contributions to the association between adult height and head and neck cancer: a Mendelian randomization analysis. Scientific Reports, 8, 4534. (doi: 10.1038/s41598-018-22626-w) (PMID:29540730) (PMCID:PMC5852094)

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With the aim to dissect the effect of adult height on head and neck cancer (HNC), we use the Mendelian randomization (MR) approach to test the association between genetic instruments for height and the risk of HNC. 599 single nucleotide polymorphisms (SNPs) were identified as genetic instruments for height, accounting for 16% of the phenotypic variation. Genetic data concerning HNC cases and controls were obtained from a genome-wide association study. Summary statistics for genetic association were used in complementary MR approaches: the weighted genetic risk score (GRS) and the inverse-variance weighted (IVW). MR-Egger regression was used for sensitivity analysis and pleiotropy evaluation. From the GRS analysis, one standard deviation (SD) higher height (6.9 cm; due to genetic predisposition across 599 SNPs) raised the risk for HNC (Odds ratio (OR), 1.14; 95% Confidence Interval (95%CI), 0.99-1.32). The association analyses with potential confounders revealed that the GRS was associated with tobacco smoking (OR = 0.80, 95% CI (0.69-0.93)). MR-Egger regression did not provide evidence of overall directional pleiotropy. Our study indicates that height is potentially associated with HNC risk. However, the reported risk could be underestimated since, at the genetic level, height emerged to be inversely associated with smoking.

Item Type:Articles
Additional Information:Te authors thank the Italian Association for Research on Cancer (AIRC, IG 2013 n. 14211) and the PRECeDI project (Marie Skłodowska-Curie Research and Innovation Staf Exchange - RISE N°645740) for supporting the work of Roberta Pastorino and Anna Puggina.
Glasgow Author(s) Enlighten ID:Conway, Professor David
Authors: Pastorino, R., Puggina, A., Carreras-Torres, R., Lagiou, P., Holcátová, I., Richiardi, L., Kjaerheim, K., Agudo, A., Castellsagué, X., Macfarlane, T. V., Barzan, L., Canova, C., Thakker, N. S., Conway, D. I., Znaor, A., Healy, C. M., Ahrens, W., Zaridze, D., Szeszenia-Dabrowska, N., Lissowska, J., Fabianova, E., Mates, I. N., Bencko, V., Foretova, L., Janout, V., Brennan, P., Gaborieau, V., McKay, J. D., and Boccia, S.
College/School:College of Medical Veterinary and Life Sciences > School of Medicine, Dentistry & Nursing > Dental School
Journal Name:Scientific Reports
Publisher:Nature Publishing Group
ISSN (Online):2045-2322
Copyright Holders:Copyright © 2018 The Authors
First Published:First published in Scientific Reports 8: 4534
Publisher Policy:Reproduced under a Creative Commons License

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