Cervical Cancer and Folate
Good sources of folate include dark green leafy vegetables, oranges, other fruits, rice, brewer's yeast, beef liver, beans, asparagus, kelp, soybeans, and soy flour.
Some medications can affect the body's ability to absorb folate well, and in such instances folate may need be taken in supplement form.
For the treatment of cervical or any other form of cancer, it is important to keep a well-rounded diet, perhaps take herbal supplements, and certainly determine if any of the medications you are taking are creating deficiencies of key nutrients in your body.
Effect of Folate on Cervical Cancer
Folate, a B vitamin, deficiency is thought to increase the ease with which cervical cancer can develop. It participates in the crucial biological process known as methylation and plays an important role in cell division: without sufficient amounts of folate, cells cannot divide properly. However, taking extra folate does not appear to reverse cervical dysplasia once it has occurred.1,2
How to Use Folate
High-dose folate of 10 mg daily might be helpful for normalizing abnormalities in the appearance of the cervix (as seen under a microscope) in women taking oral contraceptives, but again, it does not appear to reverse actual cervical dysplasia
Side Effects and Warnings
Folate at nutritional doses is extremely safe. The only serious potential problem is that folate supplementation can mask the early symptoms of vitamin B 12 deficiency (a special type of anemia), potentially allowing more irreversible symptoms of nerve damage to develop. For this reason, when taking more than 400 mcg daily, it is important to get your B 12 level checked. See the article on Vitamin B 12 for more information.
Very high dosages of folate, greater than 5 mg (5,000 mcg) daily, can cause digestive upset. The maximum recommended dosage of folate for pregnant or nursing women is 1,000 mcg daily (800 mcg if under 19 years old). ^ Media reports that use of folate by pregnant women may increase their risk of breast cancer are based on a single study of highly questionable validity. ^ At present, this is not considered a significant concern, but further research will follow.
As mentioned previously, the antiseizure drug phenytoin may interfere with folate absorption. However, folate may reduce the effectiveness of phenytoin. ^ ^ ^ ^ ^ If you are taking phenytoin, you should consult with a physician about the proper dosage of folate for you.
Also, as noted above, individuals who are taking the drug methotrexate for rheumatoid arthritis, juvenile rheumatoid arthritis, or psoriasis can safely take folate supplements at the same time. However, if you are taking methotrexate for any other purpose, do not take folate except on the advice of a physician.
#Interactions You Should Know About
If you are taking
- Aspirin and other anti-inflammatory medications , drugs that reduce stomach acid (such as antacids , H 2 blockers , and proton pump inhibitors ), bile acid sequestrants (such as cholestyramine and colestipol ), carbamazepine , estrogen-replacement therapy , nitrous oxide , oral contraceptives , oral hypoglycemic drugs , phenobarbital , primidone , sulfa antibiotics , triamterene , valproic acid or the antibiotic trimethoprim-sulfamethoxazole : You may need to take extra folate.
- Phenytoin : You may need more folate. However, too much folate can interfere with this medication and cause seizures! Physician supervision is essential.
- Drugs in the nitroglycerin family: Folate may help them remain effective
- Pancreatin (a proteolytic enzyme ): It may be advisable to separate your dose of pancreatin from your dose of folate by at least 2 hours in order to avoid absorption problems.
- Methotrexate for rheumatoid arthritis, juvenile rheumatoid arthritis, or psoriasis: Evidence suggests that folate supplements may reduce side-effects of the drug without decreasing its benefits. Nonetheless, physician supervision is highly recommended. Note: If you are taking methotrexate for other conditions, folate might decrease the drug's effectiveness.
- Butterworth CE Jr, Hatch KD, Gore H, et al. Improvement in cervical dysplasia associated with folic acid therapy in users of oral contraceptives. Am J Clin Nutr. 1982;35:73-82.
- Butterworth CE Jr, Hatch KD, Soong SJ, et al. Oral folic acid supplementation for cervical dysplasia: a clinical intervention trial. Am J Obstet Gynecol. 1992;166:803-809.