Search is Powered by Google
Follow us on:
Follow our health news on Twitter
Follow Our News on Facebook
Personalization
login | register
Biology / Biochemistry News

Impact Of Experimentally Elevated Energy Expenditure On Oxidative Stress And Lifespan In The Short-tailed Field Vole Microtus Agrestis

Main Category: Biology / Biochemistry
Also Included In: Veterinary
Article Date: 13 May 2008 - 1:00 PDT

email icon email to a friend   printer icon printer friendly   write icon view / write opinions   rate icon rate article
Current Article Ratings:

Patient / Public:not yet rated

Health Professional:not yet rated

Article Opinions: 0 posts

Life-history theory suggests that limited resources exist in the wild and animals trade-off competing demands for these resources.

For example, investing in reproduction may result in a cost to lifespan. Increased metabolic rate (work) may incur a survival cost by producing damaging free radicals.

We increased metabolic rate in voles via life-long cold exposure and measured longevity, free radical damage and antioxidant protection.

Increased metabolism had no effect on lifespan, damage or antioxidant protection, so does not appear to incur a physiological-mediated cost in these animals.

Similar studies are now required in wild populations where limited resources (food) exist.

Proceedings of the Royal Society B: Biological Sciences

Proceedings B is the Royal Society's flagship biological research journal, dedicated to the rapid publication and broad dissemination of high-quality research papers, reviews and comment and reply papers. The scope of journal is diverse and is especially strong in organismal biology.

www.publishing.royalsociety.org/proceedingsb




Personalized Homepage Weekly Newsletters Daily News Alerts
Hemophilia Opioid Induced Constipation Pneumococcal Disease ADHD Anxiety Asthma Atrial Fibrillation Autism Cancer Diabetes Lung Cancer Lupus Medicare / Medicaid Obesity and BMI Pancreatic Cancer Stem Cells All 'What Is...' Articles

Ophthalmology Urology
About Us News Licensing Free Website Feeds Free Tools & Content Tell a Friend Accessibility Help / FAQ Article Submission Links Contact Us

add medical news today to your facebook
medical news gadget

Please fill in our survey

Swine Flu Image

Swine Flu Updates

- Latest Swine Flu News
- What is Swine Flu?
- Map Of H1N1 Outbreaks
- Swine Flu - Top 20 FAQ
- Daily Email News Alerts
Stick with Medical News Today for the latest news updates on swine flu.


These are the most read articles from this news category for the last 6 months:
Top Article Star
What Are Bed Bugs? How To Kill Bed Bugs
20 Jul 2009
Bed bugs, known scientifically as Cimex lectularius (Cimicidae) are small wingless insects that feed by hematophagy - exclusively on the blood of warm blooded-animals. As we are warm-blooded animals we are ideal hosts for them...


Keeping Seniors Safe in the Heat
Keeping Seniors Safe in the Heat

Keeping cool this summer means avoiding heat stroke, the most serious heat-related illness, and heat exhaustion, a milder affliction but still a dangerous one. Older people are especially vulnerable to both.

more videos are available in our health videos section.