MTHFR Gene Mutation
This is interesting as it mentions fibromyalgia as a possible outcome of this deficiency. Genetic testing is needed to determine if you have the problem. Also, I was told that Canadians have a higher incidence of this mutation. I originally posted this information in 2009.
What is it?
The gene MTHFR (Methylenetetrahydofolate Reductase) encodes the protein MTHFR. Its job is to convert one form of folate (5,10-Methylenetetrahydofolate) to another form of folate (5-Methyltetrahydrofolate). 5-Methyltetrahydrofolate is used to convert Homocysteine (a "bad" amino acid) to Methionine (a "good" amino acid). Therefore, if MTHFR is not doing its job as well, homocysteine will not be converted to Methionine and will be elevated in plasma. Elevated Homocysteine has been associated with a variety of multi-factorial diseases.
Essentially what this means is that the genes that instruct MTHFR to convert homocysteine to Methionine are mutated and may not be capable of doing this important function. MTHFR is an enzyme that converts Homocysteine to an essential amino acid (Methionine). When the genes are mutated you may be lacking this enzyme. Your Homocysteine levels can possibly climb making the blood clot. Some doctors don't check for the MTHFR mutations and rely only on homocysteine levels. This isn't as reliable as testing for the mutations, because Homocysteine levels fluctuate (if you catch your level on a normal day, you may go undiagnosed).
What Type Do I Have?
With MTHFR, there are two different genes identified for this mutation, and it's possible to be "heterozygous," "compound heterozygous," or "homozygous." The MTHFR gene mutation has varying degrees of possible implications. The order of potential severity from most to least is:
1. C677T & C677T (Two C Copies - C677T Homozygous)
2. C677T & A1298C (One Copy of Each The C & A - Compound Heterozygous)
3. C677T (One C Copy - C677T Heterozygous)
4. A1298C & A1298C (Two A Copies - A1298C Homozygous)
5. A1298C (One A Copy - A1298C Heterozygous)
The MTHFR mutation is fairly common in the general population. Approximately 44% of the population is heterozygous and another approximate 12% are homozygous for the MTHFR mutation. Compound heterozygous and homozygous MTHFR have the highest incidences of being linked to implantation failure, late term miscarriages, specific birth defects and overall vascular health. Whichever type of MTHFR you have, it should not be discounted, particularly if there is a personal or family history of any such incidences.
What Are the Implications?
Any and all of the mutations can affect homocysteine levels, but there is much dispute as to whether elevated homocysteine levels are actually needed in order for MTHFR to cause medical complications. Many other MTHFR patients have normal homocysteine levels; yet have had implantation problems, m/c(s), and/or stillbirth(s) due to clotting problems. So it is important to find out your Homocysteine levels (although again, normal doesn't necessarily mean all is well). This is a serious field and MTHFR is a serious condition, so consulting an expert is wise.
Research shows that high homocysteine levels and/or those with the mutation show a higher propensity for thrombosis (blood clots), arteriosclerosis (hardening of arteries), Alzheimer's, stroke, heart attack, Fibromyalgia, migraines (especially with "Aura" migraines), osteoporotic fractures, bone marrow disorders and for those of child bearing years, it has found to be connected to higher incidences of down's syndrome, spina bifida, other neural tube defects, trisomy, miscarriage, stillbirth, implantation failure, placental abruption, preeclampsia, higher incidences of autism, amongst others. Additionally, if you test positive you may want to have your parents, siblings, and any children you may already have tested, as well. There are a few positives to this disorder. Because folate is necessary for cellular division, there is support that shows having this disorder can actually help keep certain types of cancer cells from multiplying as rapidly, so there are some benefits from having this mutation.
Many doctors prescribe Folgard, which is a prescription vitamin supplement containing high levels of folic acid, B12 and B6. These vitamins are what the body essentially needs to convert Homocysteine to Methionine. To put this into perspective, the average multivitamin contains 400 mcgs , most prenatals have 800mcgs of Folic Acid (200% of the normal daily value). Those that are compound heterozygous and those that are homozygous for the mutation are recommended taking 5 mgs. of Folic Acid/B vitamins (12 times the average multi-vitamin and 6 times more than prenatals). It is also recommended to begin taking a low dose (LD) aspirin (81 mgs) once a day, every day, for the rest of your life.