{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T17:09:19Z","timestamp":1777914559003,"version":"3.51.4"},"reference-count":36,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[1996,3,1]],"date-time":"1996-03-01T00:00:00Z","timestamp":825638400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Toxicol Pathol"],"published-print":{"date-parts":[[1996,3]]},"abstract":"<jats:p>Changes in liver morphology and biochemistry have been assessed 16 hr after a sc injection of sodium arsenite [As(III), 75 \u03bcmol\/ kg] to control and phenobarbital (PB)-pretreated (80 mg\/kg, ip daily for 3 days) adult male Wistar rats. As(III) administration to PBpretreated rats [PB + As(III)] caused hydropic degeneration, total loss of glycogen, necrosis in some centrilobular zones, and an increase in lipid vacuoles around the periportal area. Electron microscopy showed an increased number of vacuoles and autophagosomes containing organelle-like material. There was a 30% decrease in total hepatic cytochrome P-450 (CYP450). O -dealkylation of ethoxy- and pentoxyresorufin and N-demethylation of benzphetamine decreased to 42, 32, and 30% of control values, respectively. 5-Aminolevulinic acid dehydrase decreased 25% from controls, and metal chelatase activities decreased to 25% of the PB-treated group. Injection of As(III) alone resulted in a mild increase in lipid-containing vacuoles around the periportal zone, a moderate loss of glycogen in midzonal areas, and, by electron microscopy, a dilatation of the bile canaliculi and an increase of the number of myelin-like structures. CYP450 content and the O-dealkylation of ethoxy- and pentoxyresorufin and N-demethylation of benzphetamine all decreased between 30 and 50%. These results demonstrate the greater susceptibility of the liver to injury following PB with compounds not requiring metabolic activation. The metabolic basis of these changes are unclear but may result from an increased demand for metabolic energy due to PB induction and decreased adenosine triphosphate synthesis caused by arsenic.<\/jats:p>","DOI":"10.1177\/019262339602400205","type":"journal-article","created":{"date-parts":[[2009,4,1]],"date-time":"2009-04-01T19:16:47Z","timestamp":1238613407000},"page":"172-180","source":"Crossref","is-referenced-by-count":9,"title":["Enhanced Arsenite-Induced Hepatic Morphological and Biochemical Changes in Phenobarbital-Pretreated Rats"],"prefix":"10.1177","volume":"24","author":[{"given":"Arnulfo","family":"Albores","sequence":"first","affiliation":[{"name":"Secci\u00f3n de Toxicolog\u00eda Ambiental, Departamento de Farmacolog\u00eda y Toxicolog\u00eda, CINVESTAV-IPN, P.O. Box 14-740, M\u00e9xico, D.F., 07000, M\u00e9xico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mariano E.","family":"Cebri\u00e1n","sequence":"additional","affiliation":[{"name":"Secci\u00f3n de Toxicolog\u00eda Ambiental, Departamento de Farmacolog\u00eda y Toxicolog\u00eda, CINVESTAV-IPN, P.O. Box 14-740, M\u00e9xico, D.F., 07000, M\u00e9xico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gonzalo G.","family":"Garc\u00eda-Vargas","sequence":"additional","affiliation":[{"name":"Secci\u00f3n de Toxicolog\u00eda Ambiental, Departamento de Farmacolog\u00eda y Toxicolog\u00eda, CINVESTAV-IPN, P.O. Box 14-740, M\u00e9xico, D.F., 07000, M\u00e9xico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"John C.","family":"Connelly","sequence":"additional","affiliation":[{"name":"Toxicology Unit, The Robens Institute for Industrial Health and Safety, University of Surrey, Guildford, Surrey GU2 5XH, United Kingdom"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shirley C.","family":"Price","sequence":"additional","affiliation":[{"name":"Toxicology Unit, The Robens Institute for Industrial Health and Safety, University of Surrey, Guildford, Surrey GU2 5XH, United Kingdom"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Richard H.","family":"Hinton","sequence":"additional","affiliation":[{"name":"Toxicology Unit, The Robens Institute for Industrial Health and Safety, University of Surrey, Guildford, Surrey GU2 5XH, United Kingdom"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peter H.","family":"Bach","sequence":"additional","affiliation":[{"name":"Interdisciplinary Research Centre for Cell Modulation Studies, Faculty of Science and Health, University of East London, Romford Road, London E15 4LZ, United Kingdom"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"James W.","family":"Bridges","sequence":"additional","affiliation":[{"name":"Toxicology Unit, The Robens Institute for Industrial Health and Safety, University of Surrey, Guildford, Surrey GU2 5XH, United Kingdom"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[1996,3,1]]},"reference":[{"key":"atypb1","volume-title":"Toxicological Profile for Arsenic","author":"Agency for Toxic Substances and Disease Registry (ATSDR)","year":"1993"},{"key":"atypb2","doi-asserted-by":"publisher","DOI":"10.3109\/00498259209053122"},{"key":"atypb3","doi-asserted-by":"publisher","DOI":"10.1002\/jbt.2570040202"},{"key":"atypb4","doi-asserted-by":"publisher","DOI":"10.3109\/10408448309128255"},{"key":"atypb5","first-page":"793","volume":"48","author":"Berger PC","year":"1966","journal-title":"Am. 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