{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,28]],"date-time":"2026-10-28T04:00:11Z","timestamp":1793160011776,"version":"4.5.0"},"reference-count":24,"publisher":"Oxford University Press (OUP)","issue":"1","license":[{"start":{"date-parts":[[2013,4,2]],"date-time":"2013-04-02T00:00:00Z","timestamp":1364860800000},"content-version":"vor","delay-in-days":91,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Occupational Health"],"published-print":{"date-parts":[[2013,1]]},"abstract":"<jats:sec><jats:label\/><jats:p><jats:bold>Effects of Exposure to 1\u2010Bromopropane on Astrocytes and Oligodendrocytes in Rat Brain: Sahabudeen Sheik MOHIDEEN, <jats:italic>et al<\/jats:italic>. Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya University\u2014<\/jats:bold><\/jats:p><\/jats:sec><jats:sec><jats:title>Objectives<\/jats:title><jats:p>Human cases of 1\u2010bromopropane (1\u2010BP) toxicity showed ataxic gait and cognitive dysfunction, whereas rat studies showed pyknotic shrinkage in cerebellar Purkinje cells and electrophysiological changes in the hippocampus. The present study investigated the effects of 1\u2010BP on astrocytes and oligodendrocytes in the rat cerebellum and hippocampus to find sensitive markers of central nervous system toxicity.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Forty\u2010eight F344 rats were divided into four equal groups and exposed to 1\u2010BP at 0, 400, 800 and 1,000 ppm for 8 h\/day; 7 days\/week, for 4 weeks. Nine and three rats per group were used for biochemical and histopathological studies, respectively.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Kluver\u2010Barrera staining showed pyknotic shrinkage in the cytoplasm of Purkinje cells and nuclei of granular cells in the cerebellum at 1,000 ppm. Immunohistochemical analysis showed increased length of glial fibrillary acidic protein (GFAP)\u2010positive processes of astrocytes in the cerebellum, hippocampus and dentate gyrus at 800 and 1,000 ppm. The myelin basic protein (MBP) level was lower at 1,000 ppm. The numbers of astrocytes and granular cells per tissue volume increased at 400 ppm or higher.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The present study showed that elongation of processes of astrocytes accompanies degeneration of granular cells and Purkinje cells in the cerebellum of the rats exposed to 1\u2010BP. The decrease in MBP and number of oligodendrocytes suggest adverse effects on myelination. The increase in astrocyte population per tissue volume in the cerebellum might be a sensitive marker of 1\u2010BP neurotoxicity, but the underlying mechanism for this change remains elusive.<\/jats:p><\/jats:sec>","DOI":"10.1539\/joh.12-0118-oa","type":"journal-article","created":{"date-parts":[[2012,11,26]],"date-time":"2012-11-26T22:35:35Z","timestamp":1353969335000},"page":"29-38","source":"Crossref","is-referenced-by-count":11,"title":["Effects of Exposure to 1\u2010Bromopropane on Astrocytes and Oligodendrocytes in Rat Brain"],"prefix":"10.1093","volume":"55","author":[{"given":"Sahabudeen Sheik","family":"Mohideen","sequence":"first","affiliation":[{"name":"Department of Occupational and Environmental Health Nagoya University Graduate School of Medicine, Nagoya University Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sahoko","family":"Ichihara","sequence":"additional","affiliation":[{"name":"Graduate School of Innovation Studies, Mie University Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kaviarasan","family":"Subramanian","sequence":"additional","affiliation":[{"name":"Department of Occupational and Environmental Health Nagoya University Graduate School of Medicine, Nagoya University Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhenlie","family":"Huang","sequence":"additional","affiliation":[{"name":"Department of Occupational and Environmental Health Nagoya University Graduate School of Medicine, Nagoya University Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hisao","family":"Naito","sequence":"additional","affiliation":[{"name":"Department of Occupational and Environmental Health Nagoya University Graduate School of Medicine, Nagoya University Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Junzoh","family":"Kitoh","sequence":"additional","affiliation":[{"name":"Emeritus Professor Nagoya University Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gaku","family":"Ichihara","sequence":"additional","affiliation":[{"name":"Department of Occupational and Environmental Health Nagoya University Graduate School of Medicine, Nagoya University Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2013,4,2]]},"reference":[{"key":"e_1_2_1_2_1","volume-title":"Studies of 1\u2010bromopropane (CAS No. 106\u201094\u20105) in F344\/N rats and B6C3F1 mice (Inhalation studies). 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