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Effect of maternal folate levels on somatic mutation frequency in the developing colon
G A Trentin1, J Moody, J A Heddle
1Department of Biology, York University, 4700 Keele Street, Toronto, Ontario, Canada.
Mutation Research
|September 5, 1998
Summary
Maternal folic acid levels during pregnancy did not affect spontaneous mutant frequency in developing mouse colons. This suggests cancer risk correlations with folate intake may only apply to extreme deficiencies or combined risk factors.
Area of Science:
- Developmental biology
- Nutritional science
- Cancer research
Background:
- Folic acid deficiency is linked to chromosomal aberrations in adults.
- Somatic mutations are crucial in the development of cancer.
- Most mutations originate during early developmental stages.
Purpose of the Study:
- To investigate the impact of maternal folic acid intake on spontaneous mutation frequency in the developing colon of offspring.
- To determine if prenatal folate levels influence early-stage carcinogenesis.
Main Methods:
- Utilized lacZ transgenic mice model.
- Examined offspring at 3 and 8 weeks of age.
- Compared mutant frequencies between offspring from mothers on low-folate and high-folate diets during gestation.
Main Results:
- No significant differences in spontaneous mutant frequencies were observed at 3 or 8 weeks of age.
- Offspring from mothers on low-folate and high-folate diets exhibited similar mutation rates in the developing colon.
Conclusions:
- Maternal folate levels during pregnancy do not appear to significantly alter spontaneous mutation frequency in the developing mouse colon.
- The association between folic acid intake and cancer risk may be contingent upon extreme deficiencies or other contributing factors like genetics or combined dietary issues.