title: A simple and efficient method for studying neurotransmitter release in vitro by a radiotracer technique.
abstract: A method which allows measurement of neurotransmitter release from isolated preparations has been developed. With this method release of 3H-acetylcholine from guinea pig ileum and rabbit jejunum could be studied after preincubation of the preparations with 3H-choline. The release of noradrenaline from guinea pig vas deferens could also be measured after preincubation with 3H-noradrenaline. The method is based on a device which allows experiments on 4 preparations at the same time, including incubation, field stimulation and collection of fractions for counting of radioactivity. With the purpose of obtaining a simple and inexpensive device for stimulating the tissue preparations electrically, a physiological stimulator distributor (PSD) was constructed. It is concluded that the described method constitutes an inexpensive simple and quick means of studying neurotransmitter release from isolated tissues.
mesh_terms: D000109:Acetylcholine / Q000032:analysis / Q000378:metabolism*; D000818:Animals; D005260:Female; D006168:Guinea Pigs; D007082:Ileum / Q000378:metabolism; D066298:In Vitro Techniques; D007583:Jejunum / Q000378:metabolism; D008297:Male; D008722:Methods; D009638:Norepinephrine / Q000032:analysis / Q000378:metabolism*; D011817:Rabbits; D014316:Tritium; D014649:Vas Deferens / Q000378:metabolism
chemical_list: D014316:Tritium; D000109:Acetylcholine; D009638:Norepinephrine