منابع مشابه
The cholinesterases.
In 1914 Sir Henry Dale (1) suggested that an enzyme which degrades the esters of choline played a role in neurotransmission within the autonomic and somatic motor nervous systems and that this enzyme, acetylcholinesterase, was the target of action of the drug, physostigmine (eserine). In the intervening 75 years, inhibition of the enzyme has been used to augment both the nicotinic and muscarini...
متن کاملCholinesterases in human skin.
This study concerns the distribution of cholinesterases in human skin. Previous work on this subject was published last year by Hurley, Shelley and Koelle (1) These authors used a method originated by Koelle (2, 3). In Koelle's method, acetyithiocholine and butyryithiocholine are used as substrates. It is assumed that acetyithiocholine is split by specific acetyicholinesterase as well as by non...
متن کاملThe inhibition of cholinesterases by pancuronium.
Pancuronium causes a powerful and highly selective inhibition of human serum cholinesterase in vitro. The inhibition was studied in serum from 14 individuals of both sexes (5-60 years of age) with normal reactions to suxamethonium. Pancuronium, in a concentration of 2.3 x 10(-7) M, caused a 50% inhibition of the enzymatic hydrolysis of acetylcholine, when this substrate was present in a concen...
متن کاملThe temperature activity relationships of serum cholinesterases.
A study has been made of the temperature activity relationships of the serum cholinesterase variants differentiated by means of dibucaine and fluoride inhibition. Using benzoylcholine as substrate, there is a characteristic temperature activity curve for each phenotype, and, for those most sensitive to succinyldicholine, this differs radically from that of the normal enzyme.A true index of seru...
متن کاملThe use of cholinesterases in ecotoxicology.
Cholinesterase (ChE) is one of the most employed biomakers in environmental analysis. Among ChEs, potentially the most significant in environmental terms is acetylcholinesterase (AChE), an enzymatic form that terminates the nerve impulse . Because of its physiological role, Ache has long been considered a highly specific biomarker for organisms exposed to anticholinesterasic agents, primarily a...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1991
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(20)64277-6