{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,2]],"date-time":"2026-11-02T10:12:04Z","timestamp":1793614324239,"version":"4.5.0"},"reference-count":51,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2013,1,2]],"date-time":"2013-01-02T00:00:00Z","timestamp":1357084800000},"content-version":"vor","delay-in-days":2192,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Andrology"],"published-print":{"date-parts":[[2007,1,2]]},"abstract":"<jats:p><jats:bold>ABSTRACT: <\/jats:bold> The present study describes the extent and pattern of oxidative stress induction in testis and epididymal sperm of rats following in vivo exposure to repeated sublethal doses of 2 model pro\u2010oxidants, namely, t\u2010butyl hydroperoxide (tbHP) and cumene hydroperoxide (cHP). Single sublethal (1\/40, 1\/20, and 1\/10 LD<jats:sub>50<\/jats:sub>) doses of hydroperoxides (HP) administered intraperitoneally to male rats (CFT\u2010Wistar strain) failed to induce any significant increase in malondialdehyde or reactive oxygen species (ROS) levels in testis or epididymal sperm. However, repeated doses for 1 or 2 weeks induced a marked dose\u2010related enhancement of lipid peroxidation (LPO) and ROS levels in both testis and epididymal sperm. Further evidence, such as significant perturbations in both enzymic and nonenzymic antioxidants and enhanced levels of protein carbonyls in testis, suggested induction of oxidative stress. In testis, moderate depletion in reduced glutathione levels and marked diminution in ascorbic acid and \u03b1\u2010tocopherol content were accompanied by increased activities of various antioxidant enzymes, namely glutathione peroxidase, glutathione\u2010S\u2010transferase, and catalase, in both the HP treatments. Furthermore, significant alterations in the specific activities of testicular enzymes such as LDH\u2010X, G\u20106\u2010PDH, and SDH indicated altered testicular physiology. Both HP at higher doses induced significant DNA damage (determined by fluorimetric analysis of DNA unwinding assay) in testis and epididymal sperm. Increased total iron levels in testis of HP\u2010treated rats are indicative of the possible involvement of iron\u2010mediated free radical reactions in this model. These findings provide an account of early oxidative damage in testis and epididymal sperm following short\u2010term exposure to HP in vivo, and this model is being further exploited for understanding the consequences of chronic oxidative stress\u2010mediated alterations for the physiology of male reproductive system and its implications for fertility.<\/jats:p>","DOI":"10.2164\/jandrol.106.000265","type":"journal-article","created":{"date-parts":[[2006,12,14]],"date-time":"2006-12-14T21:43:36Z","timestamp":1166132616000},"page":"77-85","source":"Crossref","is-referenced-by-count":46,"title":["Induction of Oxidative Stress by Organic Hydroperoxides in Testis and Epididymal Sperm of Rats In Vivo"],"prefix":"10.1002","volume":"28","author":[{"given":"Thimmappa 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