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ABSTRACT: Background
Recent preclinical research strongly suggests that dietary sugars can enhance colorectal tumorigenesis by direct action, particularly in the proximal colon that unabsorbed fructose reaches.Objectives
We aimed to examine long-term consumption of sugar-sweetened beverages (SSBs) and total fructose in relation to incidence and mortality of colorectal cancer (CRC) by anatomic subsite.Methods
We followed 121,111 participants from 2 prospective US cohort studies, the Nurses' Health Study (1984-2014) and Health Professionals Follow-Up Study (1986-2014), for incident CRC and related death. Cox proportional hazards regression was used to compute HRs and 95% CIs.Results
During follow-up, we documented 2733 incident cases of CRC with a known anatomic location, of whom 901 died from CRC. Positive associations of SSB and total fructose intakes with cancer incidence and mortality were observed in the proximal colon but not in the distal colon or rectum (Pheterogeneity ≤ 0.03). SSB consumption was associated with a statistically significant increase in the incidence of proximal colon cancer (HR per 1-serving/d increment: 1.18; 95% CI: 1.03, 1.34; Ptrend = 0.02) and a more pronounced elevation in the mortality of proximal colon cancer (HR: 1.39; 95% CI: 1.13, 1.72; Ptrend = 0.002). Similarly, total fructose intake was associated with increased incidence and mortality of proximal colon cancer (HRs per 25-g/d increment: 1.18; 95% CI: 1.03, 1.35; and 1.42; 95% CI: 1.12, 1.79, respectively). Moreover, SSB and total fructose intakes during the most recent 10 y, rather than those from a more distant period, were associated with increased incidence of proximal colon cancer.Conclusions
SSB and total fructose consumption were associated with increased incidence and mortality of proximal colon cancer, particularly during later stages of tumorigenesis.
SUBMITTER: Yuan C
PROVIDER: S-EPMC9170474 | biostudies-literature | 2022 Jun
REPOSITORIES: biostudies-literature
Yuan Chen C Joh Hee-Kyung HK Wang Qiao-Li QL Zhang Yin Y Smith-Warner Stephanie A SA Wang Molin M Song Mingyang M Cao Yin Y Zhang Xuehong X Zoltick Emilie S ES Hur Jinhee J Chan Andrew T AT Meyerhardt Jeffrey A JA Ogino Shuji S Ng Kimmie K Giovannucci Edward L EL Wu Kana K
The American journal of clinical nutrition 20220601 6
<h4>Background</h4>Recent preclinical research strongly suggests that dietary sugars can enhance colorectal tumorigenesis by direct action, particularly in the proximal colon that unabsorbed fructose reaches.<h4>Objectives</h4>We aimed to examine long-term consumption of sugar-sweetened beverages (SSBs) and total fructose in relation to incidence and mortality of colorectal cancer (CRC) by anatomic subsite.<h4>Methods</h4>We followed 121,111 participants from 2 prospective US cohort studies, the ...[more]