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- W4361821069 abstract "<div>Abstract<p><b>Background:</b> Mitochondria play an important role in cellular energy metabolism, free radical production, and apoptosis, and thus may be involved in cancer development.</p><p><b>Methods:</b> We evaluated mitochondrial DNA (mtDNA) copy number in peripheral leukocytes in relation to colorectal cancer risk in a case–control study of 444 colorectal cancer cases and 1,423 controls nested in the Shanghai Women's Health Study, a population-based, prospective cohort study. Relative mtDNA copy number was determined by a quantitative real-time PCR assay using peripheral leukocyte DNA samples collected at the time of study enrollment, before cancer diagnosis.</p><p><b>Results:</b> We found that baseline mtDNA copy number was lower among women who subsequently developed colorectal cancer [geometric mean, 0.277; 95% confidence interval (CI), 0.269–0.285] than among women who remained cancer-free (geometric mean, 0.288; 95% CI, 0.284–0.293; <i>P</i> = 0.0153). Multivariate adjusted ORs were 1.26 (95% CI, 0.93–1.70) and 1.44 (95% CI, 1.06–1.94) for the middle and lower tertiles of mtDNA copy number, respectively, compared with the upper tertile (highest mtDNA copy number; <i>P</i><sub>trend</sub> = 0.0204). The association varied little by the interval between blood collection and cancer diagnosis.</p><p><b>Conclusions:</b> Our data suggest that mtDNA copy number measured in peripheral leukocytes may be a potential biomarker useful for colorectal cancer risk assessment.</p><p><b>Impact:</b> If confirmed, mtDNA copy number measured in peripheral leukocytes may be a biomarker useful for colorectal cancer risk assessment. <i>Cancer Epidemiol Biomarkers Prev; 23(11); 2357–65. ©2014 AACR</i>.</p></div>" @default.
- W4361821069 created "2023-04-05" @default.
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- W4361821069 date "2023-03-31" @default.
- W4361821069 modified "2023-09-26" @default.
- W4361821069 title "Data from Association of Leukocyte Mitochondrial DNA Copy Number with Colorectal Cancer Risk: Results from the Shanghai Women's Health Study" @default.
- W4361821069 doi "https://doi.org/10.1158/1055-9965.c.6515209.v1" @default.
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