期刊
INTERNATIONAL JOURNAL OF CANCER
卷 138, 期 11, 页码 2648-2656出版社
WILEY
DOI: 10.1002/ijc.30013
关键词
apolipoproteins; obesity; cancer incidence; breast cancer; lung cancer; colorectal cancer; prostate cancer
类别
资金
- Swedish Research Council
- Swedish Cancer Society
- Skane University Hospital donation funds
- Governmental Funding of Clinical Research within National Health Services
- Mrs Berta Kamprad foundation for Cancer Research
The epidemiological evidence for an obesity-cancer association is solid, whereas the association between obesity-associated lipoprotein levels and cancer is less evident. We investigated circulating levels of Apolipoprotein A1 (ApoA1), Apolipoprotein B (ApoB), LDL-cholesterol (LDL-C) and HDL-cholesterol (HDL-C) and association to risk of overall cancer and common cancer forms. The Malmo Diet and Cancer Study, a population-based prospective cohort study, enrolled 17,035 women and 11,063 men (1991-1996). Incident cancer cases were ascertained by record linkage with the Swedish Cancer Registry until end of follow-up, January 1, 2012. Baseline serum levels of ApoA1 and ApoB were analyzed for the entire cohort and HDL-C and LDL-C levels in 5,281 participants. Hazard ratios, with 95% confidence interval, were calculated using Cox's proportional hazards analysis. In the entire cohort, none of the exposures were related to overall cancer risk (HRadj ApoA1 = 0.98, 95% CI: 0.95,1.01; HRadj ApoB = 1.01, 95% CI: 0.98-1.04). Among men, ApoB was positively associated with cancer risk (HRadj ApoB = 1.06, 95% CI: 1.01,1.10). Female breast cancer risk was inversely associated with ApoB (HRadj = 0.92, 95% CI: 0.86,0.99). Among both genders, ApoA1 was inversely associated with lung cancer risk (HRadj = 0.88, 95% CI: 0.80,0.97), whereas high ApoB increased lung cancer risk (HRadj = 1.08, 95% CI: 0.99,1.18). Colorectal cancer risk was increased with high ApoB (HRadj = 1.08, 95% CI: 1.01,1.16) among both genders. Apolipoprotein levels were not associated with prostate cancer incidence. Circulating levels of apolipoproteins are associated with overall cancer risk in men and across both genders with breast, lung and colorectal cancer risk. Validation of these findings may facilitate future primary prevention strategies for cancer.
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