HOME >> BIOLOGY >> NEWS
What animals can tell us about hemorrhage, organ transplants and aging

hypothermic or have suffered massive blood loss.

No fountain of youth -- yet

Human life expectancy has been greatly enhanced by advances in disease prevention and treatment. But what do we know about how and why we age, and can we slow the aging process?

In the symposium, "Comparative biology of aging in long-lived animals" scientists will compare the physiology of a variety of long- and short-lived species to understand how they age at different rates, said Deborah Kristan of California State University at San Marcos. Kristan will co-chair the session with Rochelle Buffenstein of the City College of New York.

Much of the early aging research was done on short-lived animals, because it was easier to study a complete life span, Kristan said. But physiologists have recently turned their attention to long-lived animals. Some of the aging theories to be discussed during the symposium:

  • DNA damage and repair. Short-lived animals may suffer more damage to their genes and have a more difficult time repairing the damage than long-lived animals, the theory goes. Mice, a short-lived species, have a high occurrence of cancer, which is related to damage to the genes, while mole-rats appear to be cancer-resistant, Kristan said. On the other hand, long-lived animals, including humans, not only suffer less DNA damage when exposed to damaging agents, they have a greater ability to repair the damage when it occurs, Buffenstein said.

  • Oxidative stress. The prevailing theory has been that oxidative stress -- damage caused to cells by rogue oxygen atoms known as reactive oxygen species -- shortens lifespan. Animals that could best prevent reactive oxygen species (ROS) generation, neutralize them, or repair the damage it causes, would live the longest, the theory goes. Buffenstein's research with naked mole rats, the longest-lived rodent known, may cause physiologists to modify this theory.

  • Me
    '"/>


Contact: Christine Guilfoy
cguilfoy@the-aps.org
301-634-7253
American Physiological Society
25-Sep-2006


Page: 1 2 3 4

Related biology news :

1. Limpets reveal possible fate of cold-blooded Antarctic animals
2. Killing only a few animals wont do any harm -- or will it?
3. Massive herds of animals found to still exist in Southern Sudan
4. Jefferson scientists use gene therapy to reverse heart failure in animals
5. Reproductive speed protects large animals from being hunted to extinction
6. Global survey of lizards reveals greater abundance of animals on islands than on mainland ecosystems
7. Penn study finds inhaled anesthetics accelerate the appearance of brain plaque in animals
8. New compound prevents alcoholic behavior, relapse in animals by blocking stress response
9. Smoking produces changes in human brain like those in animals using illicit drugs
10. Antarctic warming to reduce animals at base of ecosystem, shift some penguin populations southward
11. Local range estimation in wild animals

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:1/7/2020)... ... January 06, 2020 , ... Myant Inc. , the pioneers in Textile ... bring to life its vision of a world where textile-based interfaces knitted into everyday ... digital sphere, and the physical IoT-enabled environment. The experience at Myant’s booth will challenge ...
(Date:12/30/2019)... ... 30, 2019 , ... Cure Now ? Instead of Palliative ... is the 6th leading cause of death in the United States. , ... other dementia. ,     These caregivers provided an estimated 18.5 billion hours of ...
(Date:12/21/2019)... ... ... The City of Tampa recently served as the host location of the ... Tampa welcomed these most-highly decorated USA heroes as the National Hockey League (NHL), The ... members. , The Medal of Honor, the USA military’s highest award for valor in ...
Breaking Biology News(10 mins):
(Date:12/18/2019)... , ... December 17, 2019 , ... ... its 31st FDA clearance for reprocessing Electrophysiology (EP) devices since the company’s inception ... Stryker Sustainability Solutions and SterilMed (a Johnson & Johnson company) have received 2 ...
(Date:12/18/2019)... ... 18, 2019 , ... Tune in to CNBC on Saturday, December 28th at ... listings for more information on this program. , With a look at Avatar ... complex system to increase the efficiency, safety and effectiveness of equipment, systems, and processes ...
(Date:12/6/2019)... ... December 06, 2019 , ... ... clearance for its latest CAPERE® Thrombectomy System for peripheral vascular, deep vein ... great benefits for first-in-line treatment for nonsurgical removal of soft emboli and ...
(Date:12/4/2019)... ... December 03, 2019 , ... ... today announced a partnership with the Recombinant Antibody Network (RAN), a consortium of ... San Francisco (UCSF) with a common goal to generate recombinant antibodies at a ...
Breaking Biology Technology:
Cached News: