Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
2008-1-24
pubmed:abstractText
Oxidative stress is detrimental to sperm function and a significant factor in the etiology of male infertility. Present study evaluates the effect of ter butyl hydroperoxide (TBHP)-induced oxidative stress on the spermatogenic process and cell number in the seminiferous tubules. Intraperitoneal injection of TBHP (84 mumol TBHP/100 g body weight) for 2 weeks to male Balb/c mice resulted in enhanced lipid peroxidation (P < 0.0001) decrease in reduced glutathione (P < 0.0001) and increase in the oxidized glutathione levels (P = 0.007) in the testis. Status of spermatogenesis after the treatment was assessed by the quantitative methods of germ cell evaluation in the seminiferous tubules. A significant decrease in the number of young spermatids (P = 0.0003) and pachytene cells (P = 0.022) was observed. A marked reduction was also seen in the mature spermatid number (P < 0.0001). An increase in testicular mRNA levels of redox-regulated cjun (P = 0.008) and cfos (P = 0.0006) subunits of activator protein 1 (AP1) was observed after TBHP treatment. Evaluation of AP1 regulated antioxidant enzymes in the testis revealed an increase in gamma-glutamyl cysteine synthetase (GCS) mRNA expression (P = 0.001). These results suggest a potential role of AP1 in oxidative stress-mediated meiotic and post meiotic changes in the spermatogenic process and regulation of cell number in male reproductive system.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0300-8177
pubmed:author
pubmed:issnType
Print
pubmed:volume
308
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
177-81
pubmed:meshHeading
pubmed-meshheading:17934699-Animals, pubmed-meshheading:17934699-Cell Count, pubmed-meshheading:17934699-Glutathione, pubmed-meshheading:17934699-Kinetics, pubmed-meshheading:17934699-Lipid Peroxidation, pubmed-meshheading:17934699-Male, pubmed-meshheading:17934699-Mice, pubmed-meshheading:17934699-Oxidation-Reduction, pubmed-meshheading:17934699-Oxidative Stress, pubmed-meshheading:17934699-RNA, Messenger, pubmed-meshheading:17934699-Reverse Transcriptase Polymerase Chain Reaction, pubmed-meshheading:17934699-Sertoli Cells, pubmed-meshheading:17934699-Spermatogenesis, pubmed-meshheading:17934699-Testis, pubmed-meshheading:17934699-Transcription Factor AP-1, pubmed-meshheading:17934699-Transcription Factors, pubmed-meshheading:17934699-Up-Regulation, pubmed-meshheading:17934699-tert-Butylhydroperoxide
pubmed:year
2008
pubmed:articleTitle
Upregulation of AP1 by tertiary butyl hydroperoxide induced oxidative stress and subsequent effect on spermatogenesis in mice testis.
pubmed:affiliation
Department of Biophysics, Panjab University, Chandigarh 160014, India.
pubmed:publicationType
Journal Article