animal studies suggest it may support healing of gastric ulcers and damaged intestinal lining Preclinical models suggest it may help modulate inflammation, though this has not been established in controlled human trials Known risks and side effects: Because it is sold as an unregulated research chemical rather than a manufactured pharmaceutical, product purity and dosing accuracy cannot be verified, and the FDA has flagged potential impurities and manufacturing-quality concerns FDA's Category 2 determination specifically cited potential immune reactions and hypersensitivity as a safety concern User-reported (non-clinical-trial) effects include injection-site irritation, redness, or swelling, along with occasional headache, nausea, or lightheadedness, based on anecdotal reporting rather than controlled studies No long-term human safety data exists

Then, 1 ml of glutathione Sepharose 4B (Amersham) slurry and 1 ml of tryptophan-induced culture broth were added to 40 ml of the PBS buffer in a 50 ml tube, and kept at the room temperature for 30 min, centrifuged at 1,000 g for 10 min at the room temperature, then resuspended in the PBS buffer, and centrifuged at 1,000 g for three more times
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doi: 10.1007/s11427-023-2539-1 79 LinMLingPHeQChenDZhengLTangLet al
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