As you know, all you good people with sarcoidosis, one of my favourite things to bang on about is avoidance of vitamin D.
As you know, I have been warning you of the dangers of hypercalcemia. This is ONLY a danger if you take high doses of D and are not concurrently taking steroids or hydroxychloroquine, or not in remission but are are not on these two drugs. Most of the time our own bodies cope pretty well with the overload of 1,25D produced by the macrophages.
I read a couple of disturbing things recently on a UK sarcoidosis website. If Marshmellow touts these things there is no scientific evidence to back it up. You must not be lulled into a false sense of security by such apparent facts as this.
I have just been reading a book on Lung Fibrosis by Tomotsu Takishima. This research by Okabe and Fujisawa confirms what I have seen in a few recent abstracts. This UK sarcoid web site's newsletter piqued my interest when they said there was no science to back up the fact that calcitriol caused the growth and recruitment of monocytes.
I may have mentioned in a recent post that my monocyte count was up along with my 25D level which is rather spooky.
I decided you all needed further warning of the dangers of vitamin D, and I found it is in this book edited by Takishima. A precis of the book occurs below:
"Basic and clinical aspects are discussed by expert contributors in this book devoted to stimulating further studies and developing new therapies for pulmonary fibrosis. Current laboratory and basic findings are reviewed in the book's first 19 chapters, while clinical aspects are addressed in the remaining 16 chapters. These aspects include laboratory and bronchalveolar findings, diagnosis, treatment and prognosis of idiopathic pulmonary fibrosis, collagen disease lungs, sarcoidosis, pneumoconiosis, hypersensitive pneumonia, drug-induced pneumonia, ARDS, radiation pneumonia, BOOP, viral pneumonia, and other diseases causing pulmonary fibrosis. The roles of various cytokines, viral infection, and lung injuries in the development and pathogenesis of pulmonary fibrosis are discussed. The definition, classification, and lung functions of pulmonary fibrosis are included as well."
More details
Basic and Clinical Aspects of Pulmonary Fibrosis
By Tamotsu Takishima
Edition: illustrated
Published by CRC Press, 1994
ISBN 0849389275, 9780849389276
In this book on page 271 it describes how calcitriol, which is also know as 1,25 hydroxyvitamin D3 or 1,25 OH D3 or 1,25D for short; causes stimulation and proliferation of monocytes in vitro. Calcitriol also induces activation and maturation of these monocytes from bone marrow, where they are initially formed. Lysozomes prompt the monocytes morphological changes into macrophages. Monocytes under stimulation of calcitriol also morphed into epithelioid and Giant cells. These three types of cells derived from monocytes are only formed under stimulation of calcitriol and all these three types of cells go into the formation of granulomas. Calcitriol stimulates these changes in a dose related manner. Calcitriol is present naturally in tiny amounts, but it only takes a tiny amount to do these things. The highest amount would by 10 to the power of minus ten. The mitosis of monocytes is stimulated by calcitriol. The team of researchers led by Okabe also tested other human hormones to see if they had effects on the monocyte cells. They looked at other metabolites of vitamin D such as 1 hydroxyvitamin D, 25,25 hydroxyvitamin D, our old friend 25 hydroxyvitamin D. They also looked at other hormones such as testosterone and prostaglandins and found that no other hormone had the same effect on monocytes as calcitriol. The monocytes grow in size and divide in the presence of calcitriol whereas, nothing happened in the control cultures.
At the end of this section this is what Okabe et. al. say:
"Our observations ... support the notion that people living in areas where exposure to sunlight is limited would be more susceptible to sarcoidosis. A small increase in D3 levels in serum would favour granuloma formation is such areas."
This was discovered even before they discovered that the granulomatous inflammation produces an enzyme which converts our own bodies production of 25D into calcitriol. Granulomas beget more granulomas so avoid D like the plague.
If you haven't been following my clinical progress please note that over our summer my own D3 has gone from a very low 27 to a 46 when I began to become ill with migraine, granuloma in the retina and then to a within reference range 55 which active pulmonary sarcoidosis confirmed by CT. I am also anemic. My eosinophils, basophils and monocytes are raised compared with earlier tests. It is not always easy to avoid vitamin D. I have been trying to avoid it and I still became ill, but we have had one of our hottest summers ever. I would be much, much sicker had I not studiously been avoiding D in sunlight and in food. Why hang on steroids if you don't have to? Stay out of the sunlight and you will be a lot better.
Pris





Add to the discussion