Type 2 diabetes mellitus, blood cholesterol, triglyceride and colorectal cancer risk in Lynch syndrome
AuthorDashti, SG; Li, WY; Buchanan, DD; Clendenning, M; Rosty, C; Winship, IM; Macrae, FA; Giles, GG; Hardikar, S; Hua, X; ...
Source TitleBritish Journal of Cancer
PublisherNATURE PUBLISHING GROUP
University of Melbourne Author/sBuchanan, Daniel; Win, Aung Ko; Macrae, Finlay; Hopper, John; Winship, Ingrid; Jenkins, Mark; Clendenning, Mark; Dashti, Seyedeh
Medicine and Radiology
Melbourne School of Population and Global Health
Academic Services and Registrar
Document TypeJournal Article
CitationsDashti, S. G., Li, W. Y., Buchanan, D. D., Clendenning, M., Rosty, C., Winship, I. M., Macrae, F. A., Giles, G. G., Hardikar, S., Hua, X., Thibodeau, S. N., Figueiredo, J. C., Casey, G., Haile, R. W., Gallinger, S., Le Marchand, L., Newcomb, P. A., Potter, J. D., Lindor, N. M. ,... Win, A. K. (2019). Type 2 diabetes mellitus, blood cholesterol, triglyceride and colorectal cancer risk in Lynch syndrome. BRITISH JOURNAL OF CANCER, 121 (10), pp.869-876. https://doi.org/10.1038/s41416-019-0580-9.
Access StatusAccess this item via the Open Access location
Open Access at PMChttp://www.ncbi.nlm.nih.gov/pmc/articles/PMC6888855
NHMRC Grant codeNHMRC/1141746
BACKGROUND: Type 2 diabetes mellitus and high total cholesterol and triglycerides are known to be associated with increased colorectal cancer risk for the general population. These associations are unknown for people with a germline DNA mismatch repair gene mutation (Lynch syndrome), who are at high risk of colorectal cancer. METHODS: This study included 2023 (56.4% female) carriers with a mismatch repair gene mutation (737 in MLH1, 928 in MSH2, 230 in MSH6, 106 in PMS2, 22 in EPCAM) recruited by the Colon Cancer Family Registry between 1998 and 2012. Weighted Cox regression was used to estimate the hazard ratios (HR) and 95% confidence intervals (CI) for the associations between self-reported type 2 diabetes, high cholesterol, triglyceride and colorectal cancer risk. RESULTS: Overall, 802 carriers were diagnosed with colorectal cancer at a median age of 42 years. A higher risk of colorectal cancer was observed in those with self-reported type-2 diabetes (HR 1.92; 95% CI, 1.03-3.58) and high cholesterol (HR 1.76; CI 1.23-2.52) compared with those without these conditions. There was no evidence of high triglyceride being associated with colorectal cancer risk. CONCLUSION: For people with Lynch syndrome, self-reported type-2 diabetes mellitus and high cholesterol were associated with increased colorectal cancer risk.
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