News tagged with dna samples
New virtual tool may provide more accurate diagnosis of genetic mutations
DNA sequencing to detect genetic mutations can aid in the diagnosis and selection of treatment for cancer. Current methods of testing DNA samples, Sanger sequencing and pyrosequencing, occasionally produce complex results ...
Feb 06, 2012 |
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Rare kidney disease shows how salt, potassium levels are moderated
High blood pressure (hypertension) is a principal risk factor for heart disease and affects 1 billion people. At least half of them are estimated to be salt-sensitive; their blood pressure rises with sodium intake. New research ...
Jan 23, 2012 |
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New test offers greater accuracy in early detection of colorectal cancer
Results of two studies suggest that a new, investigational colorectal cancer screening test developed in a collaboration between Mayo Clinic and Exact Sciences Inc. of Madison, Wis., is highly accurate and significantly more ...
Jan 19, 2012 |
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Mystery hummingbird's species identified
A mystery that puzzled Chicago-area birders was solved when Field Museum scientists identified the unusual hummingbird living in an Oak Park, Ill., yard as a member of the rufous species rarely seen in the Midwest.
Dec 26, 2011 |
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Orphaned children exhibit genetic changes that require nurturing parents
Children who experience the stress of separation at birth from biological parents and are brought up in orphanages undergo biological consequences such as changes in their genome functioning, Yale School of ...
Medicine & Health / Psychology & Psychiatry
Dec 05, 2011 |
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Study IDs new genetic links to impulsivity, alcohol problems in men
Being impulsive can lead us to say things we regret, buy things we really don't need, engage in behaviors that are risky and even develop troublesome addictions. But are different kinds of hastiness and rashness embedded ...
Nov 16, 2011 |
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New study reveals coral reefs may support much more biodiversity than previously thought
Smithsonian scientists and colleagues conducted the first DNA barcoding survey of crustaceans living on samples of dead coral taken from the Indian, Pacific and Caribbean oceans. The results suggest that the ...
Nov 02, 2011 |
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Going to extremes to find greener chemicals
Next time you watch a TV program that cracks a crime using DNA evidence, tip your hat to the microbe that makes it all possible.
Nov 02, 2011 |
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Patterns of new DNA letter in brain suggest distinct function
In 2009, the DNA alphabet expanded. Scientists discovered that an extra letter or "sixth nucleotide" was surprisingly abundant in DNA from stem cells and brain cells.
Medicine & Health / Neuroscience
Oct 30, 2011 |
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Possible link between bacterium, colon cancer found
For the first time, a specific microorganism has been found to be associated with human colorectal cancer. In two studies published online today in Genome Research, independent research teams have identified Fusobacterium in col ...
Oct 17, 2011 |
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Ancient Greek ships traded more than just wine
(PhysOrg.com) -- While many historians have assumed that Greek sailors were using amphorae, or ancient storage containers, to transport and trade wine, new DNA testing is providing evidence that these containers ...
Other Sciences / Archaeology & Fossils
Oct 17, 2011 |
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Health and forensic databases may contribute to racial disparities
There is too little attention paid in national and international public policy circles to the digital divide in health and law enforcement databases, says a new article in this week's PLoS Medicine.
Oct 04, 2011 |
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Bowhead whales using the Northwest Passage
(PhysOrg.com) -- According to a new study published in Biology Letters, the climate changes and melting of ice in the Northwest Passage are leading to the mingling of two bowhead whale populations that have b ...
Sep 22, 2011 |
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New technique fills gaps in fossil record
University of Pennsylvania evolutionary biologists have resolved a long-standing paleontological problem by reconciling the fossil record of species diversity with modern DNA samples.
Sep 19, 2011 |
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Human-Neanderthal coupling was rare: study
Scientists have shown that modern humans have some traces of genes from Neanderthals, but a study out Monday suggests that any breeding between the two was most likely a rare event.
Other Sciences / Archaeology & Fossils
Sep 12, 2011 |
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