Glycine and N-acetylcysteine (GlyNAC) supplementation in older adults improves glutathione deficiency, oxidative stress, mitochondrial dysfunction, inflammation, insulin resistance, endothelial dysfunction, genotoxicity, muscle strength, and cognition: Results of a pilot clinical trialI've been taking NAC since COVID hit and, per your earlier recommendation, bought Glycine some time ago, but haven't added the Glycine to my supplement mix yet. Need to start that.
I may have done some damage to my right optic nerve after 3 months of illness with severe, violent coughing which almost caused me to vomit on several occasions. Ar any rate, before I was sick, both optic nerves were normal. Then I had to pass a cataract exam to continue to be allowed to drive. That is when the doctor noticed that part of my right optic nerve appeared to be gone/twisted, something wrong. They wanted me to start taking glaucoma medicine for both eyes even though both eyes had a pressure test score of 15 (normal range is 11 to 21) In fact when I asked the doctor to check my pressure scores for some years in the past, I sometimes had 17 or 16. My mother had glaucoma with high pressure, and a nervous up-tight personality. I am relaxed and happy so don’t believe I have low pressure glaucoma.
I was told, there was no cure for a damaged optic nerve, but with some careful Google searching found some suggestions that trauma can sometimes be healed. NAC was one item they suggested might help a damaged nerve heal, and I am taking it. I did not see anything about glycine or glutathione. I have some glutamine and wonder if that might be useful to increase my glutathione levels. I am also taking Alpha Lipoic Acid in the hope it will stimulate Adult Stem Cell Repair. And I could sure use more strength. Merry Christmas to all.