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10.1590/1414-431X20176853 6

Mast cell activation and histamine intolerance overlap with oxalate sensitivity in a couple of ways: A study involving cell samples from patients with kidney stones found that they had higher mast cell counts than a healthy control group.[ref] Ketotifen, a drug that stops mast cell degranulation, reduces the formation of calcium oxalate kidney stones.[ref] Interestingly, the reason that stinging nettles cause severe skin irritation is that they contain oxalic acid and tartaric acid, which have been shown to activate mast cells.[ref][ref] Related article : Mast cell activation syndrome and Histamine intolerance Inflammation: Macrophage activation by oxalate crystals Macrophages are a type of white blood cell that can exist in an anti-inflammatory state (M2) that promotes healing or in a pro-inflammatory state (M1) that increases ROS and inflammation

Storage: Lyophilized: 28 C (35.646.4 F) or freeze at 20 C (4 F)

(1991), Biochemistry , 30 , 8702-8709