{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,30]],"date-time":"2026-03-30T14:53:19Z","timestamp":1774882399736,"version":"3.50.1"},"reference-count":55,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2004,10,9]],"date-time":"2004-10-09T00:00:00Z","timestamp":1097280000000},"content-version":"vor","delay-in-days":4903,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J of Comparative Neurology"],"published-print":{"date-parts":[[1991,5,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>A semiquantitative, electron microscopic immunocytochemical procedure based on the use of colloidal gold particles as markers was employed to analyze the subcellular distribution of glutamate and glutamine, a major glutamate precursor, in a subpopulation of spinocerebellar mossy fiber terminals. These terminals were identified by anterograde transport of a horseradish peroxidase\u2010wheat germ agglutinin conjugate, injected in the thoracic spinal cord. Gold particles signalling glutamate\u2010like immunoreactivity were enriched over clusters of synaptic vesicles relative to organelle\u2010free cytoplasmic matrix, and there was a strong positive correlation between gold particle and synaptic vesicle densities (correlation coefficient 0.94). Gold particles indicating glutamine\u2010ike immunoreactivity showed a much weaker correlation with vesicle density (correlation coefficient 0.36) and were about equally concentrated over cytoplasmic matrix as over clusters of synaptic vesicles.<\/jats:p><jats:p>Compared with the mossy fibers, the putative GABAergic Golgi cell terminals exhibited a lower level of glutamate\u2010like immunoreactivity, which was very weakly correlated with the vesicle density (correlation coefficient 0.27). The level of glutamine\u2010like immunoreactivity in the Golgi cell terminals was similar to that in mossy fibers, but much lower than that in glial cells.<\/jats:p><jats:p>The anterogradely labelled mossy fiber terminals were not enriched in immunoreactivities for aspartate or GABA.<\/jats:p><jats:p>These results suggest that the level and subcellular distribution of glutamate in presumed glutamatergic terminals differs from that in terminals in which glutamate only serves metabolic or precursor roles, and that these differences can be exploited in immunocytochemical studies aimed at identifying glutamate\u2010using neurons. In contrast, glutamine immunocytochemistry does not seem to be generally useful in this regard.<\/jats:p>","DOI":"10.1002\/cne.903070210","type":"journal-article","created":{"date-parts":[[2005,1,1]],"date-time":"2005-01-01T22:30:39Z","timestamp":1104618639000},"page":"296-310","source":"Crossref","is-referenced-by-count":72,"title":["An electron microscopic, immunogold analysis of glutamate and glutamine in terminals of rat spinocerebellar fibers"],"prefix":"10.1002","volume":"307","author":[{"given":"Zhongqi","family":"Ji","sequence":"first","affiliation":[]},{"given":"Jan\u2010Erik","family":"Aas","sequence":"additional","affiliation":[]},{"given":"Jon","family":"Laake","sequence":"additional","affiliation":[]},{"given":"Fred","family":"Walberg","sequence":"additional","affiliation":[]},{"given":"Ole Petter","family":"Ottersen","sequence":"additional","affiliation":[]}],"member":"311","published-online":{"date-parts":[[2004,10,9]]},"reference":[{"key":"e_1_2_1_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/0304-3940(89)90455-2"},{"key":"e_1_2_1_3_1","doi-asserted-by":"publisher","DOI":"10.1042\/bj1280631"},{"key":"e_1_2_1_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/0010-4825(90)90041-M"},{"key":"e_1_2_1_5_1","doi-asserted-by":"crossref","DOI":"10.1002\/cphy.cp010216","volume-title":"Cerebellar afferent systems","author":"Bloedel J. 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