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Evaluation of Colorectal Cancer Risk and Prevalence by Stool DNA Integrity Detection
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Yogurt consumption and colorectal polyps.

Samara B Rifkin1, Francis M Giardiello2,3,4, Xiangzhu Zhu5

  • 1Department of Medicine, Division of Gastroenterology and Hepatology, University of Michigan, Ann Arbor, MI, USA.

The British Journal of Nutrition
|February 21, 2020
PubMed
Summary
This summary is machine-generated.

Yogurt consumption may reduce the risk of hyperplastic polyps (HP) and adenomatous polyps (AP), precursors to colorectal cancer (CRC). Probiotic use may also lower the odds of developing AP. Further research is needed.

Keywords:
Adenomatous polypsColorectal polypsHyperplastic polypsProbioticsSerrated polypsSessile serrated polypsYogurt

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Area of Science:

  • Gastroenterology
  • Nutritional Science
  • Cancer Research

Background:

  • Dietary factors significantly influence colorectal cancer (CRC) risk.
  • Previous research on yogurt's protective effects against CRC has yielded inconclusive results.
  • Colorectal polyps, including hyperplastic polyps (HP) and adenomatous polyps (AP), are key indicators of CRC risk.

Purpose of the Study:

  • To investigate the association between yogurt intake and probiotic use with the incidence of colorectal polyps.
  • To evaluate the potential protective effects of yogurt and probiotics against different types of colorectal polyps.
  • To analyze data from two independent colonoscopy-based case-control studies.

Main Methods:

  • Utilized data from the Tennessee Colorectal Polyp Study (TCPS) and the Johns Hopkins Biofilm Study.
  • Included a total of 6507 participants diagnosed with HP, sessile serrated polyps, AP, or no polyps.
  • Employed multinomial logistic regression models to calculate odds ratios (OR) and 95% confidence intervals (CI) for polyp development.

Main Results:

  • Daily yogurt intake was linked to reduced odds of HP in the TCPS (OR 0.54; 95% CI 0.31, 0.95).
  • Weekly yogurt intake showed decreased odds of AP in women within the TCPS (OR 0.73; 95% CI 0.55, 0.98).
  • In the Biofilm Study, weekly yogurt intake and probiotic use demonstrated a trend towards reduced odds of overall AP, though not statistically significant.

Conclusions:

  • Yogurt consumption may be associated with a lower risk of developing both HP and AP.
  • Probiotic use might be linked to decreased odds of AP.
  • Further prospective studies are warranted to confirm these findings and elucidate the mechanisms involved.