Search

Filter

  • Advanced Filters:

  • to

  • Specific Data Sources:

    All Edit

    Select All  |  Select None

Reset filters

← Back to Search Results

Journals AJP - Heart and Circulatory Physiology Volume 297 Issue 6

Abstract The female sex has been associated with increased resistance to acute myocardial ischemia-reperfusion (I/R) injury. While enhanced antioxidant capacity has been implicated in female cardioprotection, there is little evidence to support this assumption. Previous studies have shown an important role of cellular glutathione peroxidase (GPx1) in protection of the myocardium from I/R injury. Whether GPx1 is mechanistic in the protection of female myocardium, post-I/R, has not been examined. We utilized a murine model with homozygous deletion of GPx1 and examined its impact on postischemic myocardial recovery in male and female mice. Following I/R, male GPx1(−/−) hearts were more susceptible to contractile and diastolic dysfunction, and this was associated with increased protein carbonyls, a marker of oxidative stress. In contrast, GPx1 deficiency in female hearts did not exacerbate dysfunction or oxidative stress post-I/R. Both wild-type and GPx1(−/−) female hearts exhibited reduced creatine kinase leakage and a more favorable ascorbate redox status compared with males. Following I/R, female GPx1(−/−) hearts showed a comparable decrease in glutathione redox status as their male counterparts; however, they exhibited a greater decrease in nitrate-to-nitrite ratio, suggesting a higher consumption of nitrate in female GPx1(−/−) hearts. Our findings demonstrate that GPx1 is critical for cardioprotection during I/R in male, but not female, mice. The maintenance of cardioprotection in female mice lacking GPx1 post-I/R may be due to an improved ascorbate redox homeostasis and enhanced nitrate-to-nitrite conversion, which would predictably be accompanied by enhanced production of cardioprotective nitric oxide. ischemia reperfusion gender free radicals antioxidants ascorbate nitric oxide nitrite Copyright © 2009 the American Physiological Society

End of preview. The entire article is 11 pages. To view the full-text, please rent this article to continue.

/lp/the-american-physiological-society/glutathione-peroxidase-deficiency-exacerbates-ischemia-reperfusion-MPslCi46Kt
Welcome to DeepDyve! Rent Premier Research Articles and Save Up to 90%

Learn more

Bookmark

Glutathione peroxidase deficiency exacerbates ischemia-reperfusion injury in male but not female myocardium: insights into antioxidant compensatory mechanisms

More Info
  • Publisher American Physiological Society
  • Copyright Copyright © 2011 the American Physiological Society
  • ISSN 0363-6135
  • eISSN 1522-1539
  • D.O.I. 10.1152/ajpheart.00673.2009
  • Publisher site Get PDF  

More Like This Article

View All dataSource[]=actageo&dataSource[]=aspet&dataSource[]=aaos&dataSource[]=aacc&dataSource[]=aacr&dataSource[]=aea&dataSource[]=aip&dataSource[]=ajnr&dataSource[]=ams&dataSource[]=aps_physical&dataSource[]=appi_book&dataSource[]=appi_journal&dataSource[]=apha&dataSource[]=asip&dataSource[]=asm&dataSource[]=asn&dataSource[]=aspb&dataSource[]=avs&dataSource[]=annual_reviews&dataSource[]=arxiv&dataSource[]=acm&dataSource[]=berghahn&dataSource[]=cabi&dataSource[]=clinical_trials&dataSource[]=dailymed&dataSource[]=degruyter&dataSource[]=du_press&dataSource[]=esa&dataSource[]=eu_press&dataSource[]=elsevier&dataSource[]=emerald&dataSource[]=ejtr&dataSource[]=emea&dataSource[]=epo&dataSource[]=faseb&dataSource[]=gsa&dataSource[]=health_affairs&dataSource[]=hindawi&dataSource[]=imanager&dataSource[]=imedpub&dataSource[]=informa_healthcare&dataSource[]=informs&dataSource[]=iop&dataSource[]=iucr&dataSource[]=iospress&dataSource[]=jbjs&dataSource[]=leftcoast&dataSource[]=lu_press&dataSource[]=mesharpe&dataSource[]=mary_ann_liebert&dataSource[]=medline&dataSource[]=mit_press&dataSource[]=nature&dataSource[]=oxford&dataSource[]=pier_professional&dataSource[]=pnas&dataSource[]=portlandpress&dataSource[]=psyc_articles&dataSource[]=psyc_books&dataSource[]=psyc_critiques&dataSource[]=plos_journal&dataSource[]=pubmed_central&dataSource[]=rsna&dataSource[]=rockefeller&dataSource[]=rcn&dataSource[]=ria&dataSource[]=rsc&dataSource[]=sage&dataSource[]=spie&dataSource[]=springer_journal&dataSource[]=springer&dataSource[]=taylor_francis&dataSource[]=aps&dataSource[]=the_scientist&dataSource[]=uc_press&dataSource[]=uspto_abstract&dataSource[]=wiley&dataSource[]=pct

Browse: Subject Areas | Journals | Publishers

Sign Up for a DeepDyve Account

Bookmark an Article

To bookmark an article, please log in first, or sign up for a DeepDyve account if you don't already have one.

OK

Subscribe to Journal Email Alerts

To subscribe to email alerts, please log in first, or sign up for a DeepDyve account if you don't already have one.

OK

Thank you for renting with DeepDyve

Your PayPal account has been charged $2.99. You now have access to the full text of this article. A rental receipt has also been sent to your email address.

Your credit card has been charged $2.99. You now have access to the full text of this article. A rental receipt has also been sent to your email address.

OK

New! You can now keep track of new articles from AJP - Heart and Circulatory Physiology on your personalized homepage! Learn more

PDF Download — Not Available

Thanks for your interest in purchasing the PDF. Your request has been noted and we will work with our publisher partner to discuss enabling this feature.

In the meantime, you can get the PDF by visiting the publisher site.

Thank you for purchasing with DeepDyve

Your PayPal account has been charged $.

Your credit card has been charged $.

You can now download this article. A purchase receipt has also been sent to your email address.

Download This Article or I'm done with my download

Print Page — Not Available

Thanks for your interest in printing individual pages. Your request has been noted and we will work with our publisher partner to discuss enabling this feature.

In the meantime, you can get the PDF by visiting the publisher site.

Thank you for printing with DeepDyve

Your PayPal account has been charged $0.

Your credit card has been charged $0.

You can now print this article. A purchase receipt has also been sent to your email address.

Print the Selected Pages or I'm done with my printing

Please refresh to generate a new download link

Your article download link has expired. Please refresh this page to obtain a new download link and try again.

Follow a Journal

To get new article updates from a journal on your personalized homepage, please log in first, or sign up for a DeepDyve account if you don't already have one.

OK