{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,27]],"date-time":"2025-10-27T04:51:22Z","timestamp":1761540682837},"reference-count":53,"publisher":"Canadian Science Publishing","issue":"2","license":[{"start":{"date-parts":[[2006,2,1]],"date-time":"2006-02-01T00:00:00Z","timestamp":1138752000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/www.nrcresearchpress.com\/page\/about\/CorporateTextAndDataMining"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Can. J. Physiol. Pharmacol."],"published-print":{"date-parts":[[2006,2]]},"abstract":"<jats:p>The prevalence of liver diseases emphasizes the need of animal models to research on the mechanism of disease pathogenesis. Furthermore, most of the liver pathologies have the oxidative stress as an important component. The senescence-accelerated mouse strain SAMP8 was proposed as a valuable animal model for the study of liver diseases. To gain a better understanding of the mechanisms underlying degenerative processes in SAMP8 mice livers, we studied the oxidative-induced damage in 5-month-old SAMP8 mice and SAMR1, senescence-accelerated-resistant mice. We found profound differences in the antioxidant response to aging between sexes, with males displaying lowest levels of main antioxidant enzymes superoxide dismutase (SOD), catalase (CAT), and glutathione reductase (GR) in SAMP8; whereas females had no difference in their activities, except for GR, when compared with their SAMR1 controls. The results obtained show the binomial SOD\/CAT as an important factor for counteracting reactive oxygen species-dependent damage. There were not pathological differences at the morphological level between both strains, although the decay in protection against free radicals had an immediate response by increasing lipid and protein oxidative damage in SAMP8 mice liver. At 5\u00a0months, both male and female SAMP8 mice confront the oxidative stress challenge to different extents. Indeed, proteins seem to be the most vulnerable biomolecule in SAMP8 male mice.<\/jats:p>","DOI":"10.1139\/y05-111","type":"journal-article","created":{"date-parts":[[2006,4,7]],"date-time":"2006-04-07T17:25:16Z","timestamp":1144430716000},"page":"213-220","source":"Crossref","is-referenced-by-count":17,"title":["Oxidative damage in the livers of senescence-accelerated mice: a gender-related response"],"prefix":"10.1139","volume":"84","author":[{"given":"Cristina","family":"Tom\u00e1s-Zapico","sequence":"first","affiliation":[{"name":"Department of Morphology and Cellular Biology, Faculty of Medicine, University of Oviedo, 33006 Oviedo, Spain."},{"name":"Department of Pharmacology and Physiology, Faculty of Medicine, University of Zaragoza, Spain."},{"name":"Department of Physiology, Faculty of Medicine, Institute of Biotechnology, University of Granada, Spain."}]},{"given":"\u00d3scar","family":"\u00c1lvarez-Garc\u00eda","sequence":"additional","affiliation":[{"name":"Department of 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Spain."}]},{"given":"Delio","family":"Tolivia","sequence":"additional","affiliation":[{"name":"Department of Morphology and Cellular Biology, Faculty of Medicine, University of Oviedo, 33006 Oviedo, Spain."},{"name":"Department of Pharmacology and Physiology, Faculty of Medicine, University of Zaragoza, Spain."},{"name":"Department of Physiology, Faculty of Medicine, Institute of Biotechnology, University of Granada, Spain."}]},{"given":"Mar\u00eda Josefa","family":"Rodr\u00edguez-Colunga","sequence":"additional","affiliation":[{"name":"Department of Morphology and Cellular Biology, Faculty of Medicine, University of Oviedo, 33006 Oviedo, Spain."},{"name":"Department of Pharmacology and Physiology, Faculty of Medicine, University of Zaragoza, Spain."},{"name":"Department of Physiology, Faculty of Medicine, Institute of Biotechnology, University of Granada, Spain."}]},{"given":"Ana","family":"Coto-Montes","sequence":"additional","affiliation":[{"name":"Department of Morphology and 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