{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,24]],"date-time":"2025-10-24T16:30:47Z","timestamp":1761323447603},"reference-count":36,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2006,10,5]],"date-time":"2006-10-05T00:00:00Z","timestamp":1160006400000},"content-version":"vor","delay-in-days":8678,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Neurochemistry"],"published-print":{"date-parts":[[1983,1]]},"abstract":"<jats:p><jats:bold>Abstract: <\/jats:bold> An analytical procedure for the subcellular fractionation of rat brain cortex is presented; it consists of a two\u2010step procedure involving a differential centrifuga\u2010tion using the five\u2010fraction scheme and an isopycnic cen\u2010trifugation in continuous sucrose gradients. All fractions obtained were analyzed for their content of various constituents, such as receptor binding, uptake, and several marker enzymes. Special attention was paid to the subcellular distribution of the serotonin S<jats:sub>2<\/jats:sub> receptors; they were mainly recovered in the microsomal P fraction, but a significant amount was also associated with the mito\u2010chondrial (M and L) fractions. After equilibration in density gradients, serotonin S<jats:sub>2<\/jats:sub> receptors revealed two peaks, which were similarly affected after treatment with ami\u2010triptyline and\/or yohimbine. There is no evidence to suggest that serotonin S<jats:sub>2<\/jats:sub> receptors are associated with nerve endings containing the neurotransmitter serotonin. Although three main profiles, a microsomal, a mitochondrial, and a mixed one, clearly appear from the differential centrifugation, subgroups of these main profiles were also found. For instance, the microsomal distribution patterns of serotonin S<jats:sub>2<\/jats:sub> receptors and 5\u2032\u2010nucleoti\u2010dase are very similar, but differ from that of UDP\u2010galactosyltransferase. Similarly, the mitochondrial profiles of cytochrome oxidase and 5\u2010HT (serotonin) uptake are different. An analytical approach for brain fractionation, when performed with appropriate measurements (cytochrome oxidase, amine uptake, 5\u2032\u2010nucleotidase, and receptor binding), is rapid and clearly differentiates pre\u2010and postsynaptic constituents.<\/jats:p>","DOI":"10.1111\/j.1471-4159.1983.tb11817.x","type":"journal-article","created":{"date-parts":[[2006,10,5]],"date-time":"2006-10-05T13:35:36Z","timestamp":1160055336000},"page":"84-93","source":"Crossref","is-referenced-by-count":21,"title":["Analytical Subcellular Fractionation of Rat Cortex: Resolution of Serotonergic Nerve Endings and Receptors"],"prefix":"10.1111","volume":"41","author":[{"given":"P. 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