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Folate status among patients with non-small cell lung cancer: a case-control study
1Division of Hematology/Oncology, Department of Medicine, New England Medical Center, Tufts University, Boston, MA, USA. jatoi.aminah@mayo.edu
Journal of Surgical Oncology
|July 27, 2001
Summary
This study found no link between folate levels and non-small cell lung cancer (NSCLC) risk. Folate status and intake were similar in lung cancer patients and healthy individuals, refuting the hypothesis of low folate as a risk factor.
Area of Science:
- Nutritional Biochemistry
- Oncology
- Genetics
Background:
- Investigating the potential inverse relationship between folate status and lung cancer development.
- Examining the role of folate metabolism in cancer etiology.
Purpose of the Study:
- To explore the hypothesis that low folate status is an independent risk factor for non-small cell lung cancer (NSCLC).
Main Methods:
- A case-control study comparing folate status (serum and RBC folate) in 46 postoperative NSCLC patients and 44 non-cancer controls.
- Exclusion criteria included heavy alcohol consumption, current tobacco use, or high-dose folate supplementation.
- Assessed MTHFR polymorphism genotype frequencies.
Main Results:
- No significant differences were observed in serum folate, red blood cell (RBC) folate, or folate intake between NSCLC patients and controls.
- Homocysteine levels, adjusted for age and creatinine, were also comparable between the groups.
- Frequencies of the homozygous MTHFR genotype did not differ between cases and controls.
Conclusions:
- The findings do not support the hypothesis that low folate status is an independent risk factor for NSCLC.
- Further research may be needed to fully elucidate the complex relationship between folate metabolism and lung cancer.