{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,5]],"date-time":"2026-10-05T07:35:02Z","timestamp":1791185702068,"version":"4.1.0"},"reference-count":38,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2004,10,11]],"date-time":"2004-10-11T00:00:00Z","timestamp":1097452800000},"content-version":"vor","delay-in-days":5366,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J of Neuroscience Research"],"published-print":{"date-parts":[[1990,2]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The ability of altered environmental conditions to modulate some properties of synaptosomes has been studied. Incubation conditions used included the presence of methyl mercury or an organochlorine insecticide: chlordecone. Other adverse chemical conditions during incubation were the absence of calcium salts from the incubation medium or the addition of agents bringing about enhanced oxidative conditions. Synaptosomal parameters studied were the cytosolic level of free, ionic calcium, [Ca<jats:sup>2+<\/jats:sup>]<jats:sub>i<\/jats:sub>, the extent of depolarization\u2010induced uptake of radioactive calcium, and the permeability of the limiting membrane. In addition, peroxidative activity was estimated by quantitation of thiobarbituric acid\u2010reactive material. All these facets of synaptosomal function were responsive to the presence of these potentially deleterious changes in the incubation medium. While the response of [Ca<jats:sup>2+<\/jats:sup>]<jats:sub>i<\/jats:sub>, was potentially in either direction, all adverse conditions increased synaptosomal permeability as evaluated by leakage of fura\u20102 into the extracellular compartment. Pretreatment with ganglioside GM, in some situations or \u03b1\u2010tocopherol in others could either wholly or partially prevent the onset of such altered synaptosomal characteristics.<\/jats:p>","DOI":"10.1002\/jnr.490250211","type":"journal-article","created":{"date-parts":[[2005,1,1]],"date-time":"2005-01-01T05:31:24Z","timestamp":1104557484000},"page":"229-235","source":"Crossref","is-referenced-by-count":22,"title":["Prevention of chemically induced synaptosomal changes"],"prefix":"10.1002","volume":"25","author":[{"given":"S. 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