Author: Admin (---.cu27.vnnyca.adelphia.net)
Date: 06-18-02 08:24
Caroline,
Loss of independence is so soul destroying. I asked you to rank the symptoms in order of importance because it is so easy for a sarc patient to lose sight of the goal - one doctor pushes them this way, another doctor pushes them another. That is one hazard of our system of "specialists" who only look at a subset of the body's functions.
I am assuming that you are describing an inability to control muscles, and not weakness in the muscles themselves. It seems that the neuropathy is the #1 problem, exacerbated by pain, which is probably paresthetic pain.
You know that you have sarcoidosis in your system, and we can assume that there is still some active inflammation somewhere in your body. My approach is to accept that fact, and try and work on the possible effects one at a time. The approach of using prednisone and cyclosporine, I think, follows a philosophy of "suppress inflammation, no matter what the cost".
Clearly your brain is being affected by something. Maybe the brain tissue itself is damaged, but the symptoms would then tend to be more constant, not varying from hour to hour or day to day. Symptoms that vary in intensity usually result from biochemical mediation. You say that many of your symptoms vary by the hour, so let's look at what biochemicals might be in play.
The hormone that we know has a most profound impact on the brain is (dare I say it again) 1,25 Dihydroxyvitamin D3. The review "New clues about vitamin D functions in the nervous system" is a detailed summary of what is already known about how this hormone affects the CNS, and touches a little on the tremendous amount we are still learning. It is essential to monitor the levels of this hormone as an indicator of sarcoidosis macrophage activity.
The other hormone that we still know little about is Angiotensin II. Actually, Angiotensin II breaks down to Angiotensin IV, and it is this latter variation that has the most receptors in the brain tissue. "The role of angiotensin II in cognition and behaviour" looks at some of the ways in which Angiotensin affects the brain.
Both of these substances are secreted as a result of the inflammatory action of the macrophages in the granuloma. The other cytokines resulting from the inflammation tend to be more localized, and less active in brain biochemistry than either 1,25 Dihydroxyvitamin D3 or Angiotensin.
Angiotensin II can be suppressed by the use of the Sartans, a relatively safe group of drugs that are commonly prescribed for hypertension. Their use as anti-inflammatories in sarcoid requires more careful prescription, however, and your doctor will need some help in understanding how these drugs might help or hinder a sarcoid patient. My wife and I have written a manuscript that may help with this.
The Sartans have also proven effective at arresting the halt of diabetic retinopathy, and will also help your eyes heal
At this time there is no effective way to lower the 1,25 Dihydroxyvitamin D3 level with drugs. The only thing we can do is cut down our exposure to exogenous sources of Vitamin D, and/or reduce the number of active inflammatory macrophages.
Finally, I should clarify that "staying out of the sun" when applied to a patient with symptoms as severe as yours, probably means "stay indoors and wear dark shades at all times, even indoors". Unfortunately, partial adherence to this mantra usually does not work, as the body takes so long to recover between exposures. It's all or nothing... The paper on Vit D concludes by saying "it would be interesting to question the assumption that vitamin D synthesis occurs exclusively in the skin in view of the fact that eyes are also exposed to sunlight. This could lead to .. axonal transport of the prehormone to specific brain areas and by its neuronal metabolism, which .. could have behavioral and psychological consequences". Wearing shades and avoiding bright lights is, at least, one thing that should not do long-term harm to your body
I hope these ideas might be of some help, please ask any question that pops into your mind.
..Trevor..
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