title: Quantification of Glutathione in Caenorhabditis elegans.
abstract: Glutathione (GSH) is the most abundant intracellular thiol with diverse functions from redox signaling, xenobiotic detoxification, and apoptosis. The quantification of GSH is an important measure for redox capacity and oxidative stress. This protocol quantifies total GSH from Caenorhabditis elegans, an emerging model organism for toxicology studies. GSH is measured using the 5,5'-dithiobis-(2-nitrobenzoic acid) (DTNB) cycling method originally created for cell and tissue samples but optimized for whole worm extracts. DTNB reacts with GSH to from a 5'-thio-2-nitrobenzoic acid (TNB) chromophore with maximum absorbance of 412 nm. This method is both rapid and sensitive, making it ideal for studies involving a large number of transgenic nematode strains.
authors: Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, New York.
authors: Samuel W
authors: SW
authors: Caito
authors: Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, New York.
authors: Michael
authors: M
authors: Aschner
mesh_terms: D000818:Animals; D017173:Caenorhabditis elegans / Q000187:drug effects / Q000378:metabolism*; D004228:Dithionitrobenzoic Acid / Q000633:toxicity*; D005978:Glutathione / Q000032:analysis* / Q000378:metabolism; D018384:Oxidative Stress / Q000187:drug effects; D012680:Sensitivity and Specificity; D013053:Spectrophotometry; D018675:Toxicity Tests / Q000379:methods*
chemical_list: D004228:Dithionitrobenzoic Acid; D005978:Glutathione