Navigation Links
What animals can tell us about hemorrhage, organ transplants and aging

B>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.

  • Metabolic rate. In theory, the higher the species' metabolic rate, the
    '"/>


Source:American Physiological Society


Page: 1 2 3 4

Related biology news :

1. Plants, animals share molecular growth mechanisms
2. Elephants imitate truck noises, other animals
3. Carnegie Mellon scientists develop tool that uses MRI to visualize gene expression in living animals
4. Gene therapy for Parkinsons disease moves forward in animals
5. Use of PET can reduce, may eliminate more strenuous drug development trials with animals
6. Undesirable expatriates: Preventing the spread of invasive animals
7. Two new retroviruses—transmitted from animals—identified
8. Stem cell therapy successfully treats heart attack in animals
9. More animals join the learning circle
10. Proposal would allow wild animals to roam North America
11. Research suggests fitness of Florida panthers improved by limited breeding with Texas animals
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: What animals can tell about hemorrhage organ transplants and aging

(Date:7/31/2014)... and beige adipocytes, or fat cells, are inherently different. ... each plays its own role in metabolism. In the ... most prevalent. Its primary function is energy storage. On ... generate heat but are only found in a few ... represent a special type of brown adipocytes, appear mixed ...
(Date:7/31/2014)... have shown that marine noise can affect animal movement ... Universities of Bristol and Exeter and the cole Pratique ... that boat noise stops embryonic development and increases larval ... sea slug Stylocheilus striatus used in this ... and later feed on toxic alga but this study, ...
(Date:7/30/2014)... uses reversible epigenetic processes to regulate its genes, and ... a picture of the genome regulation taking place in ... Genome Biology and illustrates how the truffle ... genes,. The authors say this may shed light on ... Black truffles (Tuber melanosporum), also known as Prigord truffles, ...
Breaking Biology News(10 mins):Hope for the overweight 2Boat noise impacts development and survival of sea hares 2How black truffles deal with the jumpers in their genome 2
... 2013 Taking a page from Chinese herbal medicine, ... today initiated the first-in-human clinical trial for pancreatic cancer ... as "Thunder God vine." The first patient ... at Scottsdale Healthcare,s Virginia G. Piper Cancer Center Clinical ...
... NY -- In plants, the growth of organs such ... of meristems. These reservoir-like compartments hold stem cells, which ... types. At Cold Spring Harbor Laboratory ... plants to obtain insights about how plants regulate their ...
... predicted that tree species will respond to global warming ... a new study of 65 different species in 31 ... Nearly 80 percent of the species aren,t yet ... staying in place -- but speeding up their life ...
Cached Biology News:TGen and Scottsdale Healthcare launch Phase I 'Thunder God vine' trial for cancer 2TGen and Scottsdale Healthcare launch Phase I 'Thunder God vine' trial for cancer 3In odd-looking mutant, clues about how maize plants control stem cell number 2Climate change may speed up forests' life cycles 2
(Date:7/31/2014)... , July 31, 2014 The SNIS ... with $25,000 to fund a translational research project.  ... 2011, the gift was presented at the Society ... Meeting in Colorado Springs, CO. ... neurointerventional approaches to neurovascular conditions, SNIS formed the ...
(Date:7/31/2014)... PORTOLA VALLEY, Calif. , July 31, 2014 /PRNewswire/ ... San Francisco Bay Area , has ... the University of Oxford,s commercialisation company. The potent anti-inflammatory ... David Greaves at the University of Oxford,s Sir ... The company, which has raised over $1.5 million ...
(Date:7/31/2014)... York, NY (PRWEB) July 31, 2014 North ... New York City, partnered with GI Energy, one of the ... complete a $13 million upgrade of its 43-year-old CHP system. ... 1971 and in an effort to extend the life of ... six generators and associated electrical and heat recovery equipment, while ...
(Date:7/31/2014)... 31, 2014 Research and Markets ... Market 2014-2018" report to their offering. ... the study of the genetic material or genomes of ... basis for the discovery and development of diagnostic and ... health conditions. Genomics is supported by three major product ...
Breaking Biology Technology:SNIS Foundation Bestows First Grant Award For Cutting-Edge NeuroInterventional Research 2SNIS Foundation Bestows First Grant Award For Cutting-Edge NeuroInterventional Research 3Oxford licenses anti-inflammatory peptides to San Francisco Bay Area start-up 2Oxford licenses anti-inflammatory peptides to San Francisco Bay Area start-up 3North Shore Towers Partners with GI Energy to Install Turnkey Natural Gas-Fired Combined Heat and Power Plant 2Global Genomics Market 2014-2018: Key Vendors are F. Hoffmann-La Roche, Life Technologies, Qiagen and Illumina 2
... Multiporator / Electroporator 2510 , , , , , , , ... Protocol No. 4308 915.511 04/2002 , , ... , , Microorganism , ... Cell type , Bacteria, gram negative, , ...
... Multiporator / Electroporator 2510 , , , , , , , ... Protocol No. 4308 915.509 12/2001 , , , ... , Microorganism , Clostridium ... type , Bacteria, gram positive, , ...
... Multiporator , , , , , , , , ... Protocol No. 4308 915.031 12/1999 , , , , , ... , Cell line , CHO, Chinese hamster ... with , Rat-DPP IV (in bidistilled H 2 O), stable transfection, , ...
Cached Biology Technology:Escherichia coli C600 2Escherichia coli C600 3Clostridium botulinum 2CHO 2
... 45° Fixed Angle Rotor for ... CL2, Centra CL3CL3R, and Centra-MP4/MP4R. ... of sputum samples and other ... Provides individual aerosol containment. Complete ...
... The MBS Satellite Thermal Cycler ... flexible solution for medium to ... MBS combines the latest in ... software and PC control, resulting ...
... Block MBS Start up kit. Includes configured ... choice of 2 MultiBlock satellite thermal ... blocks. User friendly software. Store/track ... height heated lid. Outstanding uniformity. ...
... Magnetic Stirrers operate without any moving parts ... making VARIOMAG Magnetic Stirrers 100% wear-free and ... can be hermetically sealed, making it inaccessible ... why VARIOMAG Magnetic Stirrers are particularly suitable ...
Biology Products: