News tagged with genetic modifications
Too much of a good thing? Scientists explain cellular effects of vitamin A overdose and deficiency
Oct 08, 2009 |
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If a little vitamin A is good, more must be better, right? Wrong! New research published online in the FASEB Journal shows that vitamin A plays a crucial role in energy production within cells, explaining why too much or too ...
Human cells secrete cancer-killing protein
Jul 23, 2009 |
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Human cells are able to secrete a cancer-killing protein, scientists at the University of Kentucky's Markey Cancer Center have found.
Major advance in cell reprogramming technology
Apr 23, 2009 |
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In a paper publishing online April 23rd in Cell Stem Cell, a Cell Press journal, Dr. Sheng Ding and colleagues from the Scripps Research Institute in La Jolla, California, report an important step forward in the race to mak ...
Researchers derive first embryonic stem cells from rats
Biology /
Dec 24, 2008 |
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Researchers at the University of Southern California (USC) have, for the first time in history, derived authentic embryonic stem (ES) cells from rats. This breakthrough finding will enable scientists to create far more effective ...
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Scientists discover key patterns in the packaging of genes
Jul 11, 2008 |
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Although every cell of our bodies contains the same genetic instructions, specific genes typically act only in specific cells at particular times. Other genes are "silenced" in a variety of ways. One mode of gene silencing ...
Scientists shake Darwin's foundation -- chickens inherited parents' stress symptoms
Biology /
Apr 12, 2007 |
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Evolutionary theory ever since Darwin is based on the assumption that acquired traits, such as learnt modifications of behaviour, cannot be inherited by the offspring. Now, a Swedish-Norwegian research group, led by professor ...
'Fishy' clue helps establish how proteins evolve
Biology /
Jan 27, 2009 |
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(PhysOrg.com) -- Three billion years ago, a "new" amino acid was added to the alphabet of 20 that commonly make up proteins in organisms today. Now researchers at Yale and the University of Tokyo have demonstrated ...
Scientists discover how 'companion' cells to sperm protect them from genetic damage
Biology /
Feb 05, 2009 |
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In plant pollen grains, sperm cells, which carry the genetic material to be passed on to progeny, are cocooned within larger "companion" cells that are called pollen vegetative cells. These companions provide sperm with ...
Molecular evolution of limb length
Biology /
Jan 14, 2008 |
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In the January 15th issue of G&D, a research team led by Dr. Richard Behringer at MD Anderson Cancer Center reports that they have successfully switched the mouse Prx1 gene regulatory element with the Prx1 gene regulatory ...
Researchers take first step to create cystic fibrosis model using pigs
Mar 07, 2008 |
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Cystic fibrosis is the most common genetic disease in Caucasians. The median lifespan for those with the disease is 36 years, and lung disease is the major cause of mortality. For years, scientists have studied cystic fibrosis ...
DNA differences may influence risk of Hodgkin disease
Mar 09, 2009 |
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A new analysis has found that certain variations in genes that repair DNA can affect a person's risk of developing Hodgkin disease. Published in the April 1, 2009 issue of CANCER, a peer-reviewed journal of the American Cancer ...
Study finds genomic changes in the brains of people who commit suicide
Oct 23, 2008 |
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Are genes destiny? Alternatively, are we simply the products of our environment? There is a growing sense that neither of these two possibilities fully captures the essence of the risk for psychiatric disorders. New light ...
Study explores how life experiences contribute to the biological changes of Alzheimer's
Oct 01, 2009 |
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The National Institutes of Health has awarded Rush University Medical Center approximately $5.5 million in grants to study how epigenetic changes - chemical modifications to genes that result from diet, aging, stress, or ...
Consortium develops new method to manipulate genetic material
Jul 24, 2008 |
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A multi-institutional team of researchers, including scientists at the University of Minnesota Medical School, have developed a powerful tool for genomic research and medicine. The robust method will allow researchers to ...
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