omega-3 Arachidonic Acid ethyl

Quantitation of Cocaine, Benzoylecgonine, Ecgonine Methyl Ester, and Cocaethylene in Urine and Blood Using Gas Chromatography-Mass Spectrometry (GC-MS

under the stream of nitrogen. The residue is incubated with pentafluoropropionic acid anhydride and pentafluoropropanol to form pentafluoropropionyl derivatives of ecgonine methyl ester and benzoylecgonine. Cocaine and cocaethylene are refractory to derivatization

A Fluorescent-Based Assay for Measurement of Phospholipase A2 Activity: A Facile Assay for Cell Sonicates

Phospholipases A2 (PLA2 ) catalyze the hydrolysis of the ester bond at the sn-2 position of phospholipids to generate the lysophospholipid and free fatty acid (1 ). Several classes of PLA2 s have been identified (2 ). They include the low

4-Hydroxy-2-Nonenal (4-HNE) Staining by Anti-HNE Antibody

, and can also attack DNA or protein (1 ). During the process of lipid peroxidation, polyunsaturated fatty acids (PUFA), especially linoliec acid, arachidonic acid, and docosahexaenoic acid, in biomembranes are degraded to a great variety of water-soluble, short-chain