Author: Admin (---.cu27.vnnyca.adelphia.net)
Date: 05-26-02 16:52
Belinda,
1,25 Dihydroxyvitamin D3 is the important one that most doctors don't test for. Although this is called a 'vitamin' it is only called that because when it was originally discovered we had no idea of its effects on the body.
We now know it also has the multi-system effects of a hormone and is a seco-steroid. But these important functions have only been discovered in recent years. It has also just been discovered that it suppresses T-lymphocytes and thus directly inhibits the immune system. So that is why it is important.
You must also get the 25 Hydroxyvitamin D3 level checked as it is usually low in Sarc patients, who have to keep it low to reduce the symptoms that would otherwise be caused by 1,25 Dihydroxyvitamin D3 toxicity. Many doctors panic when they see a low level of this metabolite and want to give the patients Vit D Supplements. Under no circumstances should a Sarc patient be given Vit D Supplements (Calciferol or Cod Liver Oil). the levels of this metabolite are normally low.
IMO, 1,25 Dihydroxyvitamin D3 is also important because too much of it causes the symptoms of 'hypervitaminosis D', or even 'Vitamin D poisoning' in the body of a sarc patient. These symptoms I discuss elsewhere, and are the ones that so often plague our lifestyles.
Its presence is due to the sarc granuloma and even though high levels do not necessarily come directly from sunshine or food intake, it is still called a "vitamin" by the population at large.
Even when we can suppress the inflammatory macrophages back to a low level of activity, they can be re-stimulated if our bodies receive a bit of sunlight, or our eyes react to bright lights, or if we eat Vitamin D enriched food. As the 1,25 Dihydroxyvitamin D3 is formed it catalyses the hematopoetic stem cells to create more monocytes, macrophages and granuloma. Which is not good. Because then the cycle of uncontrolled inflammation can start again. It seems the body of a sarc patient has less control over this mechanism than it should have, and I believe that this steroid holds the secret to one of the genetic characteristic of sarcoidosis.
So.. get your 1,25 Dihydroxyvitamin D3 measured. Preferably when you are feeling really awful
(when you are feeling good its levels may be more normal)
It is not an expensive test, and can be run on blood which has been drawn for all the routine tests that doctors normally perform. Always ask your doctor to give you the raw data value, the units of measurement, and the range of values that the lab considers 'normal. Put them away in a file for safekeeping, you can use them to spot developing 'trends'.
..Trevor..
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