News tagged with cellular stress
Stress-induced genomic instability facilitates rapid cellular adaption in yeast
Cells trying to keep pace with constantly changing environmental conditions need to strike a fine balance between maintaining their genomic integrity and allowing enough genetic flexibility to adapt to inhospitable conditions. ...
Jan 29, 2012 |
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A major step forward towards drought tolerance in crops
When a plant encounters drought, it does its best to cope with this stress by activating a set of protein molecules called receptors. These receptors, once activated, turn on processes that help the plant ...
Dec 19, 2011 |
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Researchers find pulsating response to stress in bacteria
(PhysOrg.com) -- If the changing seasons are making it chilly inside your house, you might just turn the heater on. That's a reasonable response to a cold environment: switching to a toastier and more comfortable ...
Nov 03, 2011 |
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New technique elucidates dynamics of plant cell metabolites
A new technique developed by researchers at RIKEN has clarified the location and dynamics of specific metabolites in a single cell of the alga Chara australis. The findings reveal that these metabolites are re ...
Sep 13, 2011 |
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A chaperone for the 'guardian of the genome'
The protein p53 plays an essential role in the prevention of cancer by initiating the controlled death of a cell with damaged genes which is in danger to transform into a cancerous cell. The heat shock protein Hsp90, in turn, ...
Sep 07, 2011 |
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Researchers flip the switch between development and aging in C. elegans
When researchers at the Buck Institute dialed back activity of a specific mRNA translation factor in adult nematode worms they saw an unexpected genome-wide response that effectively increased activity in specific stress ...
Jul 05, 2011 |
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Mechanism for stress-induced epigenetic inheritance uncovered in new study
Researchers at RIKEN have uncovered a mechanism by which the effects of stress in the fly species Drosophila are inherited epigenetically over many generations through changes to the structure of chromatin, ...
Jun 23, 2011 |
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Scientists identify protein that improves DNA repair under stress
Cells in the human body are constantly being exposed to stress from environmental chemicals or errors in routine cellular processes. While stress can cause damage, it can also provide the stimulus for undoing the damage. ...
Jun 16, 2011 |
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Micro-RNA blocks the effect of insulin in obesity
(PhysOrg.com) -- German researchers have discovered a new mechanism that leads to the development of type 2 diabetes in obesity.
Mar 31, 2011 |
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Biologists identify a new clue into cellular aging
The ability to combat some age-related diseases, such as cancer and diabetes, may rest with scientists unlocking clues about the molecular and cellular processes governing aging. The underlying theory is that if the healthy ...
Jul 07, 2010 |
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Brief exercise reduces impact of stress on cell aging, study shows
Exercise can buffer the effects of stress-induced cell aging, according to new research from UCSF that revealed actual benefits of physical activity at the cellular level.
May 26, 2010 |
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Possible link studied between childhood abuse and early cellular aging
Children who suffer physical or emotional abuse may be faced with accelerated cellular aging as adults, according to new research from Butler Hospital and Brown University.
Medicine & Health / Psychology & Psychiatry
Nov 20, 2009 |
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Misfolded proteins: The fundamental problem is aging
Proteins are essential for all biological activities and the health of the cell. Misfolded and damaged proteins spell trouble and are common to all human neurodegenerative diseases and many other age-associated diseases. ...
Aug 24, 2009 |
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Unraveling how cells respond to low oxygen
Gary Chiang, Ph.D., and colleagues at Burnham Institute for Medical Research (Burnham) have elucidated how the stability of the REDD1 protein is regulated. The REDD1 protein is a critical inhibitor of the mTOR signaling pathway, ...
Medicine & Health / Medical research
Aug 05, 2009 |
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Bad mitochondria may actually be good for you
Mice with a defective mitochondrial protein called MCLK1 produce elevated amounts of reactive oxygen when young; that should spell disaster, yet according to a study in this week's JBC these mice actually age at a slower ...
Jul 22, 2009 |
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