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Related Experiment Videos

Decrease in specific micronutrient intake in colorectal cancer patients with tumors presenting Ki-ras mutation.

Nuria Laso1, Sergi Mas, M Jose Lafuente

  • 1Department of Pharmacologys, School of Medicine, IDIBAPS, University of Barcelona, Casanova 143, 08036 Barcelona, Spain.

Anticancer Research
|July 28, 2004
PubMed
Summary
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Colorectal cancer patients with specific Ki-ras mutations consumed less vitamin A, B1, D, and iron. These findings highlight the role of micronutrients in colorectal cancer prevention and molecularly distinct disease forms.

Area of Science:

  • Oncology
  • Nutritional Science
  • Molecular Biology

Background:

  • Colorectal cancer (CRC) exhibits diverse genetic alterations.
  • The Mediterranean diet's role in CRC pathogenesis is complex.
  • Investigating dietary factors and specific gene mutations in CRC is crucial.

Purpose of the Study:

  • To examine the association between dietary patterns and Ki-ras mutations in colorectal cancer.
  • To understand the role of specific nutrients in the development of CRC with Ki-ras mutations.

Main Methods:

  • Case-control study with 246 cases and 296 controls.
  • Molecular analysis focused on 117 patients with Ki-ras tumor expression.
  • Dietary intake assessed using a semi-quantitative food frequency questionnaire.

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Main Results:

  • Patients with Ki-ras codon 12 mutations showed significantly lower intake of vitamin A, B1, D, and iron compared to controls.
  • Lower consumption of fiber, folate, vitamin E, and potassium was observed in both Ki-ras positive and negative subgroups versus controls.
  • No nutrient deficit was associated with Ki-ras codon 13 mutations.

Conclusions:

  • Micronutrients may offer protection against colorectal neoplasia.
  • Different molecular subtypes of CRC should be considered distinct etiologically.
  • Dietary interventions could play a role in CRC prevention and management.