Iron intake, body iron stores and colorectal cancer risk in women: A nested case-control study Journal Article
| Authors: | Kato, I.; Dnistrian, A. M.; Schwartz, M.; Toniolo, P.; Koenig, K.; Shore, R. E.; Zeleniuch-Jacquotte, A.; Akhmedkhanov, A.; Riboli, E. |
| Article Title: | Iron intake, body iron stores and colorectal cancer risk in women: A nested case-control study |
| Abstract: | Accumulated evidence suggests that increased body iron stores may increase the risk of colorectal cancer, possibly via catalyzing oxidation reactions. We examined the relationship between iron status and colorectal cancer in a case-control study nested within the New York University Women's Health Study cohort. For 105 incident cases of colorectal cancer with an average follow-up of 4.7 years and 523 individually matched controls, baseline levels of serum iron, ferritin, total iron binding capacity (TIBC) and transferrin saturation were determined as indicators of body iron stores, and total iron intake was assessed based on their diet and supplement intake. Overall, there were no associations between the risk of colorectal cancer and any of these indices except for serum ferritin, which showed a significant inverse association. When analyzed by subsite, there was an increasing trend in risk of cancer of the proximal colon with increasing total iron intake (p- value for trend = 0.04). In addition, a significantly increased risk of colorectal cancer associated with higher total iron intake [odds ratio (OR) = 2.50; 95% confidence interval (CI): 1.06-5.87] was observed among subjects with higher intake of total fat. Our results do not support a role of increased body iron stores in the development of colorectal cancer, but suggest that luminal exposure to excessive iron may possibly increase the risk in combination with a high fat diet. |
| Keywords: | adult; aged; middle aged; major clinical study; case-control studies; cancer risk; follow-up studies; colorectal cancer; colonic neoplasms; risk factors; risk factor; questionnaires; colorectal neoplasms; diet; iron; new york city; rectal neoplasms; transferrin; colon carcinogenesis; ferritins; iron intake; iron storage; dietary fats; humans; human; female; priority journal; article |
| Journal Title: | International Journal of Cancer |
| Volume: | 80 |
| Issue: | 5 |
| ISSN: | 0020-7136 |
| Publisher: | John Wiley & Sons |
| Date Published: | 1999-03-01 |
| Start Page: | 693 |
| End Page: | 698 |
| Language: | English |
| DOI: | 10.1002/(sici)1097-0215(19990301)80:5<693::aid-ijc11>3.0.co;2-g |
| PUBMED: | 10048969 |
| PROVIDER: | scopus |
| DOI/URL: | |
| Notes: | Article -- Export Date: 16 August 2016 -- Source: Scopus |
Altmetric
Citation Impact
BMJ Impact Analytics
Related MSK Work