News tagged with variation

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Microcephaly genes associated with human brain size

Medicine & Health / Genetics

created Dec 21, 2009 | popularity 3.7 / 5 (3) | comments 1

A group of Norwegian and American researchers have shown that common variations in genes associated with microcephaly - a neuro-developmental disorder in which brain size is dramatically reduced - may explain differences ...


African leaf-eating monkeys are 'likely to be wiped out' by climate change

African leaf-eating monkeys are 'likely to be wiped out' by climate change

Biology / Ecology

created Dec 18, 2009 | popularity 3.3 / 5 (7) | comments 4

(PhysOrg.com) -- Monkey species will become 'increasingly at risk of extinction' because of global warming, according to new research published this week.


Genetic variant may control lung function and risk of COPD

Medicine & Health / Diseases

created Dec 17, 2009 | popularity not rated yet | comments 0

Researchers have discovered evidence that suggests a genetic variant may be associated with better preserved lung function among children with asthma and adults who smoke, according to a new study funded by the National Heart, ...


Genetic link to heart failure

Medicine & Health / Genetics

created Dec 15, 2009 | popularity not rated yet | comments 0

A team of researchers, at Washington University School of Medicine, St Louis, has identified a group of 12 genetic variants in the HSPB7 gene that is associated with heart failure in humans.


New genes for lung disease discovered

Medicine & Health / Genetics

created Dec 13, 2009 | popularity 5 / 5 (3) | comments 0

(PhysOrg.com) -- Scientists have discovered five genetic variants that are associated with the health of the human lung. The research by an international consortium of 96 scientists from 63 centres in Europe and Australia ...


Study identifies genetic predeterminants for diabetes in African-Americans

Study identifies genetic predeterminants for diabetes in African-Americans

Medicine & Health / Genetics

created Dec 09, 2009 | popularity not rated yet | comments 0

For years, scientists have tried to determine the basis for discrepancies between race and the predisposition for development of diseases such as type II diabetes and cardiovascular disease. Could factors ...


Nanosphere's Disposable Cartridge

Gene Testing In the Doctors Office

Nanotechnology / Bio & Medicine

created Dec 02, 2009 | popularity 5 / 5 (5) | comments 0 weblog

(PhysOrg.com) -- A portable instrument manufactured by Nanosphere Inc. and recently approved by the FDA, can detect genetic variations in blood that alter the effectiveness of some drugs.


Some birds listen, instead of look, for mates

Biology / Plants & Animals

created Dec 02, 2009 | popularity not rated yet | comments 0

Looks can be deceiving, but certain bird species have figured out that a voice can tell them most of what they need to know to find the right mate.


Heart failure linked to gene variant affecting vitamin D activation

Medicine & Health / Genetics

created Dec 01, 2009 | popularity not rated yet | comments 0

Previous studies have shown a link between low vitamin D status and heart disease. Now a new study shows that patients with high blood pressure who possess a gene variant that affects an enzyme critical to normal vitamin ...


First 'genetic map' of Han Chinese may aid search for disease susceptibility genes

Medicine & Health / Genetics

created Nov 25, 2009 | popularity not rated yet | comments 0

The first genetic historical map of the Han Chinese, the largest ethnic population in the world, as they migrated from south to north over evolutionary time. was published online today by the American Journal of Human Ge ...


Against expectations, genetic variation does not alter asthma treatment response

Medicine & Health / Diseases

created Nov 24, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- Studies have suggested that asthma patients with a specific genetic variation might not respond as well to certain treatments as those with a different variation. But a new study in this week's edition of ...


Racial disparity in colon cancer survival not easily explained, researchers say (w/ Video)

Medicine & Health / Cancer

created Nov 23, 2009 | popularity not rated yet | comments 1

A new study by University of Alabama at Birmingham (UAB) researchers shows that body-mass index (BMI) and co-existing medical conditions (co-morbidity) do not explain the decreased survival observed among African-Americans ...


Study looks at scientific, cultural perspectives on race

Biology / Other

created Nov 17, 2009 | popularity 3 / 5 (3) | comments 1

(PhysOrg.com) -- A new study compares personal perceptions of race, color and ancestry of Brazilian high school students with the results of genetic ancestry tests, with the aim of investigating the tensions between cultural ...


Genetic link to vitamin A deficiency

Medicine & Health / Research

created Nov 17, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- Almost half of UK women may be lacking an important source of vitamin A due to a previously undiscovered genetic variation, scientists at Newcastle University have found.


Researchers Identify Gene Mutations Underlying Risk for Most Common Form of Parkinson's Disease

Medicine & Health / Genetics

created Nov 17, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- Two genes containing mutations known to cause rare familial forms of parkinsonism are also associated with the more common, sporadic form of the disease where there is no family history, researchers have ...