457 results

... Differentiated cells also exhibit higher specific activities of choline acetyltransferase and acetylcholinesterase, secrete more acetylcholine when stimulated, ...

... studies on mechanisms that regulate the expression of choline acetyltransferase genes. Choline acetyltransferase from rat brain was purified approximately 100, ...

... 1978 ABSTRACT Carbachol, an activator of muscarinic acetyl- choline receptors of NG108-15 hybrid cells, inhibits adenylate ... neurons in many ways. The cells synthesize acetyl- choline, have electrically excitable membranes, generate Na* and Ca?* ...

... were not present. Cells were incubated with [SH]choline and washed and [°H]acetylcholine released into the medium was separated from [H]choline and assayed (Fig. 6B) (21). Sero- tonin stimulated ...

... recent investigations afford reasons to believe that the choline esterase-acetylcholine system is involved. On the assumption ... 17, 21, 26) have presented direct evidence that choline esterase activity is decreased and acetylcholine increased in ...

... emmlsion (Fig. 4J). Its high sensitivity to acetyl- choline persists (10-7M, Fig. 4k), as do the ... wéys that a.poison might affect the‘aoetyl— choline (Ach) mechanism: | 1,) Inactivation of cholinssterase, ~ 2.) A ...

... ate 1600 canna; nicotinic acld 1 mg;; and choline chloride 150 my. Vitanins A, D, and E ... yeast, salts, corn oil, liver extract, gucrose, and choline. Caseln wes added in various emounte to adjust ...

... tissues contain two.esterases capable, of -hydrolyzing acetyl~ choline; so-called "trueqefiolinestepase’, which hydrolyzes acetyl- @rmethylcholine as ... el £ s el i : B . "' ot 5 e L choline esters BE well hs eeetylcholine.’”The abilmty‘to ...

... possibly mucopolysaccharides and protein. Phosphatidyl 38 derivatives of choline, ethanolamine, serine, and inositol are important constituents of ... 1967), i.e., the major components being phosphatidyl choline (lecithin) and sphingomyelin and the minor compo- nents ...

... or pyridoxine, or H 197 Pantothenic acid 199 Choline (^canitine, bilineurine, sincaline) 15 QU 201 Inositol (hexahydroxycyclohoxane) ... 122 Parasympathomimetic drugs 124 Stimulating drugs (Diaphoretics; Sudorifics) Choline esters Physostigmine (eserine) Pilocarpine (jaborandi) 126 Inhibiting drugs '( ...