Effects of storage and repeated freezing and thawing on plasma cholinesterase activity. 1984

J M Turner, and R A Hall, and M Whittaker, and L J Kricka

Plasma cholinesterase activity, determined using either benzoyl choline or butyrylthiocholine as substrate, is stable for prolonged periods (greater than 12 months) when stored at -20 degrees C. Likewise, repeated freezing and thawing of plasma did not markedly affect cholinesterase activity.

UI MeSH Term Description Entries
D002092 Butyrylthiocholine A sulfur-containing analog of butyrylcholine which is hydrolyzed by butyrylcholinesterase to butyrate and thiocholine. It is used as a reagent in the determination of butyrylcholinesterase activity. (2-Mercaptoethyl)Trimethylammonium Butyrate,S-Butyrylthiocholine Iodide,Iodide, S-Butyrylthiocholine,S Butyrylthiocholine Iodide
D002802 Cholinesterases Acylcholineacylhydrolase,Cholase,Cholinesterase
D005615 Freezing Liquids transforming into solids by the removal of heat. Melting
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001588 Benzoylcholine The benzoic acid ester of choline.
D013048 Specimen Handling Procedures for collecting, preserving, and transporting of specimens sufficiently stable to provide accurate and precise results suitable for clinical interpretation. Specimen Collection,Collection, Specimen,Collections, Specimen,Handling, Specimen,Handlings, Specimen,Specimen Collections,Specimen Handlings

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