Some years ago, I was looking at some pharmaceutical liquid products which you instil into your bladder (via a catheter inserted into the urethra) in order to
repair the important glycosaminoglycan (GAG) layer in the bladder.
The
GAG layer is a mucous membrane component of the bladder that protects the bladder lining from the toxic substances in the urine. If the GAG layer becomes defective and leaky, it can result in toxins in the urine getting re-absorbed into the body.
A damaged GAG layer also results in the toxins in the urine causing irritation to the bladder wall, which may lead to urinary urgency, increased urinary frequency, and bladder pain.
I am wondering whether a damaged GAG layer in the bladder (and possibly the kidneys, though I am not sure if GAG is found in the kidneys) might play a role in Dr Markov's theory of ME/CFS, where toxins from urinary bacteria enter the bloodstream and cause the symptoms of ME/CFS.
The GAG layer becomes defective in conditions such as
recurrent urinary tract infections (recurrent cystitis) and
interstitial cystitis (bladder pain syndrome).
The diagram below shows inflammation in the bladder where the GAG layer is damaged:
In the early years of my ME/CFS, I used to suffer from lots of recurrent urinary tract infections (recurring every few weeks), and I've long had overactive bladder, predating my ME/CFS (overactive bladder is similar to interstitial cystitis but without the pain).
So I could well have a damaged GAG layer in my bladder, and that's how I became interested in repairing the GAG layer.
The GAG layer consists of the following components: hyaluronic acid, chondroitin sulphate, heparin sulphate and keratin sulphate. The pharmaceutical approach to repairing the GAG layer is simply to instil some of these components into the bladder using a liquid solution, and this approach seems to work well.
So you have products such as Cystistat and Uromac which are sterile solutions of
sodium hyaluronate that are instilled into the bladder, to supply the hyaluronic acid needed to build the GAG layer.
And there products such as Gepan and Uracyst which are solutions of
sodium chondroitin sulphate, which supply the chondroitin sulphate needed to build the GAG layer.
These are instilled into the bladder once weekly to begin with, and then after a month or so, once the GAG layer is repaired, you just need to instil once a month as a maintenance regimen.
Although Dr Markov believes the bacterial dysbiosis causing ME/CFS is located on the kidney mucous membranes, I wonder whether some of this dysbiosis might also be found in the bladder (especially in patients like me who have recurrent UTI issues). In which case, GAG layer repair might help seal the bladder, and stop bacterial toxins from bladder bacteria leaking into the blood stream.