News tagged with gene variation
Single gene mutation can sweep through bacterial population, opening the door for the concept of 'species'
Bacteria are the most populous organisms on the planet. They thrive in almost every known environment, adapting to different habitats by means of genetic variations that provide the capabilities essential ...
Apr 05, 2012 |
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Genetic difference in staph offers clues as to why some patients get infections from cardiac implants
New research suggests that some patients develop a potentially deadly blood infection from their implanted cardiac devices because bacterial cells in their bodies have gene mutations that allow them to stick ...
Oct 24, 2011 |
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New biological pathway identified for post-traumatic stress disorder
High blood levels of a hormone produced in response to stress are linked to post-traumatic stress disorder in women but not men, a study from researchers at Emory University and the University of Vermont has found.
Medicine & Health / Psychology & Psychiatry
Feb 23, 2011 |
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Critics cast doubt on recent longevity gene study findings
(PhysOrg.com) -- A recent study of centenarians (reported in PhysOrg on July 1st) that linked a number of gene variants to longevity has now been questioned by other scientists, who suggest a DNA chip known as 610-Quad, used in ...
Jul 09, 2010 |
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Scientists Find Genes That Influence Brain Wave Patterns
(PhysOrg.com) -- Scientists have identified new genes and pathways that influence an individual's typical pattern of brain electrical activity, a trait that may serve as a useful surrogate marker for more genetically complex ...
Apr 27, 2010 |
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Sequencing genome of entire family reveals parents give kids fewer gene mutations than was thought
Researchers at the University of Utah and other institutions have sequenced for the first time the entire genome of a family, enabling them to accurately estimate the average rate at which parents pass genetic mutations to ...
Mar 10, 2010 |
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A new type of genetic variation could strengthen natural selection
(PhysOrg.com) -- The unexpected discovery of a new type of genetic variation suggests that natural selection - the force that drives evolution - is both more powerful and more complex than scientists have ...
Feb 17, 2010 |
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Jumping genes, gene loss and genome dark matter
In research published today by Nature, an international team describes the finest map of changes to the structure of human genomes and a resource they have developed for researchers worldwide to look at the ...
Oct 07, 2009 |
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New evidence ties gene to Alzheimer's
Of dozens of candidates potentially involved in increasing a person's risk for the most common type of Alzheimer's disease that affects more than 5 million Americans over the age of 65, one gene that keeps grabbing Johns ...
Medicine & Health / Neuroscience
May 06, 2009 |
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Flow of potassium into cells implicated in schizophrenia
A study on schizophrenia has implicated machinery that maintains the flow of potassium in cells and revealed a potential molecular target for new treatments. Expression of a previously unknown form of a key ...
Medicine & Health / Medical research
May 06, 2009 |
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Researchers discover method to unravel malaria's genetic secrets
The parasite that causes malaria is a genetic outlier, which has prevented scientists from discovering the functions of most of its genes. Researchers at National Jewish Health and Yale University School of Medicine have ...
Jan 25, 2012 |
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Diseases and sex: The cocktail maintaining immune gene variation
The great variation of a specific form of immune genes makes organ transplants so complicated. On the other hand, we need such a great variability in order to resist infectious diseases. This is why it also ...
Jan 10, 2012 |
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Sex explains why the fit don't always survive
(PhysOrg.com) -- New research from The Australian National University has shown how genetic variation persists through generations, rather than being bred out in an evolution towards a ‘perfect type’.
Nov 22, 2011 |
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Researchers pinpoint key events in ancient plant evolution
(PhysOrg.com) -- Researchers from the University of Florida and six other institutions have unlocked some of the key foundations for the evolution of seed and flowering plants.
Apr 13, 2011 |
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Five new genes linked to Alzheimer's
Scientists said Sunday they had uncovered five genes linked to the onset of Alzheimer's disease, doubling the number of genetic variants known to favour the commonest form of dementia.
Apr 03, 2011 |
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