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Telomere length differences between colorectal polyp subtypes: a colonoscopy-based case-control study.

Sheetal Hardikar1,2, Andrea N Burnett-Hartman3,4, Amanda I Phipps3,5

  • 1Huntsman Cancer Institute, University of Utah, 2000 Circle of Hope Dr. Room 4711, Salt Lake City, UT, 84112, USA. sheetal.hardikar@hci.utah.edu.

BMC Cancer
|May 4, 2018
PubMed
Summary
This summary is machine-generated.

Short telomere length (TL) may increase the risk of developing colorectal polyps, including adenomas and serrated polyps. This association was particularly noted for sessile serrated polyps, though further research is needed.

Keywords:
AdenomasAdvanced adenomasSerrated polypsSessile serrated polypsTelomere length

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Area of Science:

  • Genetics and Cancer Research
  • Molecular Epidemiology
  • Gastroenterology

Background:

  • Short telomeres are linked to increased cancer risk, especially gastrointestinal cancers.
  • The relationship between telomere length (TL) and colorectal cancer precursors remains unclear.

Purpose of the Study:

  • To investigate the association between telomere length (TL) and the risk of developing different colorectal polyp subtypes.
  • To compare the risk of adenomas and serrated polyps in relation to TL.

Main Methods:

  • A colonoscopy-based study involving 190 participants aged 35-79.
  • Telomere length (TL) measured in leukocytes using quantitative PCR.
  • Multivariable logistic regression used to estimate odds ratios (OR) and confidence intervals (CI).

Main Results:

  • Short TL (T/S ratio < 0.58) was associated with increased risk of adenomas (OR 1.77) and serrated polyps (OR 2.98).
  • Short TL showed a stronger association with advanced adenomas and sessile serrated polyps.
  • Statistical significance was not reached for all associations due to limited sample size.

Conclusions:

  • Short telomere length (TL) may be associated with an increased risk of colorectal polyps.
  • The association is observed in both adenoma-carcinoma and serrated pathways.
  • Sessile serrated polyps showed a notable, though not statistically significant, increased risk with short TL.