THE HISTOCHEMICAL SPECIFICITY OF CHOLINESTERASES
نویسندگان
چکیده
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 کاملSpecies variation in the specificity of cholinesterases in human and rat blood samples.
Acetylthiocholine iodide (ATC) as a common substrate in the combined assay of red blood cell cholinesterase (RBC ChE) and butyrylcholinesterase (BuChE) do not provide the accurate individual enzyme activities. Hence, in the present study the two enzyme activities in the same sample were assayed with the help of two different substrate, ATC and butyrylthiocholine iodide (BTC). Specificity of BTC...
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...
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cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...
The 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...
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ژورنال
عنوان ژورنال: Journal of Histochemistry & Cytochemistry
سال: 1954
ISSN: 0022-1554,1551-5044
DOI: 10.1177/2.4.258