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Folate intake, MTHF...
Folate intake, MTHFR polymorphisms, and risk of esophageal, gastric, and pancreatic cancer : A meta-analysis
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- Larsson, Susanna C. (författare)
- Karolinska Institutet
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Giovannucci, Edward (författare)
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- Wolk, Alicja (författare)
- Karolinska Institutet
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(creator_code:org_t)
- Karolinska Inst, Natl Inst Environm Med, Div Nutr Epidemiol, SE-17177 Stockholm, Sweden. Harvard Univ, Sch Med, Boston, MA USA. Harvard Univ, Sch Publ Hlth, Dept Nutr, Boston, MA 02115 USA. Harvard Univ, Sch Publ Hlth, Dept Epidemiol, Boston, MA 02115 USA. Brigham & Womens Hosp, Dept Med, Channing Lab, Boston, MA USA. W B SAUNDERS CO-ELSEVIER INC, 2006
- 2006
- Engelska.
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Ingår i: Gastroenterology. - Karolinska Inst, Natl Inst Environm Med, Div Nutr Epidemiol, SE-17177 Stockholm, Sweden. Harvard Univ, Sch Med, Boston, MA USA. Harvard Univ, Sch Publ Hlth, Dept Nutr, Boston, MA 02115 USA. Harvard Univ, Sch Publ Hlth, Dept Epidemiol, Boston, MA 02115 USA. Brigham & Womens Hosp, Dept Med, Channing Lab, Boston, MA USA. : W B SAUNDERS CO-ELSEVIER INC. - 0016-5085 .- 1528-0012. ; 131:4, s. 1271-1283
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Abstract
Ämnesord
Stäng
- Background & Aims: Increasing evidence suggests that a low folare intake and impaired folate metabolism may be implicated in the development of gastrointestinal cancers. We conducted a systematic review with meta-analysis of epidemiologic studies evaluating the association of folate intake or genetic polymorphisms in S,10-methylenetetrahydrofolate reductase (MTHFR), a central enzyme in folate metabolism, with risk of esophageal, gastric, or pancreatic cancer. Methods: A literature search was performed using MEDLINE for studies published through March 2006. Study-specific relative risks were weighted by the inverse of their variance to obtain random-effects summary estimates. Results: The summary relative risks for the highest versus the lowest category of dietary folate intake were 0.66 (9S% confidence interval [CI], 0.53-0.83) for esophageal squamous cell carcinoma (4 case-control), 0.50 (9S% CI, 0.39-0.65) for esophageal adenocarcinoma (3 casecontrol), and 0.49 (95% CI, 0.3S-0.67) for pancreatic cancer (I case-control, 4 cohort); there was no heterogeneity among studies. Results on dietary folate intake and risk of gastric cancer (9 case-control, 2 cohort) were inconsistent. In most studies, the MTHFR 677TT (variant) genotype, which is associated with reduced enzyme activity, was associated with an increased risk of esophageal squamous cell carcinoma, gastric cardia adenocarcinoma, noncardia gastric cancer, gastric cancer (all subsites), and pancreatic cancer; all but one of 22 odds ratios were > 1, of which 13 estimates were statistically significant. Studies of the MTHFR A1298C polymorphism were limited and inconsistent. Conclusions: These findings support the hypothesis that folare may play a role in carcinogenesis of the esophagus, stomach, and pancreas.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Cancer och onkologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Cancer and Oncology (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Gastroenterologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Gastroenterology and Hepatology (hsv//eng)
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