aaph

AAPH is a water-soluble azo compound which is used extensively as a free radical generator, often in the study of lipid peroxidation and the characterization of antioxidants.[1],[2],[3],[4] Decomposition of AAPH produces molecular nitrogen and 2 carbon radicals. The carbon radicals may combine to produce stable products or react with molecular oxygen to give peroxyl radicals. The half-life of AAPH is about 175 hours (37°C at neutral pH), making the rate of free radical generation essentially constant during the first several hours in solution.[5] While AAPH may be used effectively for lipid peroxidation in aqueous dispersions of fatty acids, other radical generators may be better suited for peroxidation studies in lipid micelles or membranes.[6],[7]

1. Phellodendrine (Phallodendrin) has anti-nephritic activity, may be due to its ability to inhibit the proliferation or the migration of macrophages and cytotoxic T lymphocytes in the glomeruli.

3-Epidehydrotumulosic acid exhibits inhibitory effects on AAPH-induced haemolysis of erythrocytes.

Alloisoimperatorin is a candidate of AChE inhibitors, it displays potent antioxidant effects against the DPPH radical and against renal epithelial cell injury by using AAPH to generate peroxyl radicals in vitro. Alloisoimperatorin has estrogenic activity

Pyridoxatin is a fungal metabolite that inhibits production of thiobarbituric acid reactive substance (TBARS). Pyridoxatin inhibits hemolysis induced by the free radical generator AAPH and is active against C. albicans.

3-O-Acetyl-16α-hydroxytrametenolic acid exhibits inhibitory activities against AAPH-induced hemolysis of red blood cells and demonstrates strong inhibitory effects on 12-O-tetradecanoylphorbol-13-acetate-induced inflammation in mice.