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Scientists find differences in naked mole rat's protein disposers
Date:5/11/2012

somes may play a critical role in the processing of oxidatively damaged proteins," Dr. Buffenstein said.

Oxidative stress

Oxygen is a reactive molecule, rusting unsealed metals and darkening fruit. In the body over time, it is thought to cause an accumulation of damage leading to functional decline, diseases and aging. This is called the oxidative stress theory of aging.

Naked mole-rats, which live underground in the wild, exhibit high levels of oxidative stress even at a young age, yet do not show many signs of age-related decline until very late in life.

"The composition of proteasomes and the presence of immunoproteasomes in the liver are key pieces of the jigsaw puzzle evaluating how naked mole-rats preserve health span well into their third decade of life," Dr. Buffenstein said.


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Contact: Will Sansom
sansom@uthscsa.edu
210-567-2579
University of Texas Health Science Center at San Antonio
Source:Eurekalert  

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