title: Tertiary-butyl hydroperoxide induced oxidative stress and male reproductive activity in mice: role of transcription factor NF-kappaB and testicular antioxidant enzymes.
abstract: Reactive oxygen species (ROS) have been proposed as a major factor affecting male reproductive capacity. The present study has evaluated the possible role of oxidative stress during testicular pathogenesis in male mice exposed to tertiary-butyl hydroperoxide (TBHP). TBHP was administered by daily intraperitoneal injection for 2 weeks. Treatment greatly increased lipid peroxidation in the testis and led to a significant decrease in sperm concentration and motility and a reduction in litter size relative to controls. An increase in testicular mRNA abundance of redox-regulated p50 and p65 subunits of NF-kappaB was observed after TBHP treatment. Evaluation of NF-kappaB regulated antioxidant enzymes in the testis revealed an increase in superoxide dismutase (SOD), glutathione peroxidase (GSH-Px) and glutathione-S-transferase (GST) activities and corresponding mRNA abundance. These results suggest a potential role of NF-kappaB in oxidative stress mediated changes in the physiology of male reproductive system.
authors.affiliation: Department of Biophysics, Panjab University, Chandigarh 160014, India.
authors.forename: Parminder
authors.initials: P
authors.lastname: Kaur
authors.forename: Gagandeep
authors.initials: G
authors.lastname: Kaur
authors.forename: Mohinder P
authors.initials: MP
authors.lastname: Bansal
mesh_terms: D000818:Animals; D005298:Fertility / Q000187:drug effects*; D005979:Glutathione Peroxidase / Q000096:biosynthesis / Q000235:genetics; D005982:Glutathione Transferase / Q000096:biosynthesis / Q000235:genetics; D008098:Litter Size / Q000187:drug effects; D008297:Male; D051379:Mice; D008807:Mice, Inbred BALB C; D016328:NF-kappa B / Q000096:biosynthesis / Q000235:genetics / Q000378:metabolism*; D018384:Oxidative Stress / Q000187:drug effects*; D012333:RNA, Messenger / Q000378:metabolism; D020133:Reverse Transcriptase Polymerase Chain Reaction; D013076:Sperm Count; D013081:Sperm Motility / Q000187:drug effects; D013094:Spermatozoa / Q000187:drug effects; D013482:Superoxide Dismutase / Q000096:biosynthesis / Q000235:genetics; D013737:Testis / Q000187:drug effects* / Q000201:enzymology; D020122:tert-Butylhydroperoxide / Q000633:toxicity*
chemical_list: D016328:NF-kappa B; D012333:RNA, Messenger; D020122:tert-Butylhydroperoxide; D005979:Glutathione Peroxidase; D013482:Superoxide Dismutase; D005982:Glutathione Transferase