Just curious. Do you have Amalgams ?? Have you been in contact with mercury sources??
Do you suspect mercury toxicity ??
Mercury is linked to thyroid problems.
A large study of women in the United States indicates a link between mercury exposure and elevated levels of a thyroid antibody that is often higher in women with autoimmune diseases, such as Arthritis and lupus.
The findings may be the first evidence that mercury exposure in U.S. women affects the immune system through the thyroid. Whether these changes in the immune system lead to thyroid or general health problems is not known.
The results are in line with previous human studies that show links between mercury and autoimmune disease. Other studies with job related – as well as dietary – mercury exposures find associations with changes to immune system antibodies, as this new study does.
Mercury is found in all organisms – plants, animals, bacteria and humans. Most exposures in people occur primarily from eating fish, which contain the organic form known as methylmercury. For this reason, fish consumption advisories are common in certain regions of the United States and the world.
In sufficient doses, methylmercury can affect the developing nervous system in the developing fetus and in growing children. In adults, elevated methylmercury exposure can lead to neurological problems, such as memory loss and tremors. Recent studies show that methylmercury exposures can also lead to cardiovascular and immune effects.
Yet, little is known about how the immune system responds to mercury in any form.
To find out more, scientists analyzed data collected from 2,047 women between 2007 and 2008 during a large study in the United States, the National Health and Nutrition Examination Survey (NHANES). They compared total mercury levels in blood and autoantibodies – immune system factors that fight the body’s own cells and indicate autoimmune disease.
They looked at two autoantibodies – thyroglobulin autoantibody and thyroid peroxidase autoantibody – that attack proteins made by the thyroid gland. Patients with autoimmune diseases, such as lupus, Rheumatoid Arthritis and fibromyalgia, often have elevated concentrations of these antibodies. The scientists limited their study to adult women, because women are more likely to have autoimmune disorders.
Associations between positive thyroid autoantibodies and total blood mercury in women were evaluated using the National Health and Nutrition Examination Survey (NHANES), 2007-2008. Women are at increased risk for autoimmune disorders, mercury exposure has been associated with cellular autoimmunity and mercury accumulates in the thyroid gland. We used multiple logistic regression to evaluate the associations between total bloodmercury and thyroglobulin autoantibody antibody positivity and thyroid peroxidase autoantibody positivity in non-pregnant, non-lactating women aged 20 and older not currently using birth control pills or other hormone therapies, adjusted for demographic factors, menopausal status, nutrient intake and urine Iodine (n=2047). Relative to women with the lowest mercury levels (≤0.40 μg/L), women with mercury >1.81 μg/L (upper quintile) showed 2.24 (95% CI=1.22, 4.12) greater odds for thyroglobulin autoantibody positivity (p(trend)=0.032); this relationship was not evident for thyroid peroxidase autoantibody positivity. Results suggest an association between mercury and thyroglobulin autoantibody positivity.