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Medicine & Health / Genetics news 1234

Scientists identify new longevity genes

March 12, 2008 | User rating: 4.5 / 5 after 43 vote(s) | User comments: 22

Scientists at the University of Washington and other institutions have identified 25 genes regulating lifespan in two organisms separated by about 1.5 billion years in evolutionary change. At least 15 of those genes have ...


Newly-identified exercise gene could help with depression

December 02, 2007 | User rating: 4.5 / 5 after 21 vote(s) | User comments: 9

Boosting an exercise-related gene in the brain works as a powerful anti-depressant in mice—a finding that could lead to a new anti-depressant drug target, according to a Yale School of Medicine report in Nature Medicine.


Genome study charts genetic landscape of lung cancer

November 04, 2007 | User rating: 4.3 / 5 after 22 vote(s) | User comments: 6

An international team of scientists today announced the results of a systematic effort to map the genetic changes underlying lung cancer, the world’s leading cause of cancer deaths. Appearing in the November 4 advance online ...


Homosexual behavior due to genetics and environmental factors

June 29, 2008 | User rating: 4.4 / 5 after 37 vote(s) | User comments: 6

Homosexual behaviour is largely shaped by genetics and random environmental factors, according to findings from the world's largest study of twins.


New discovery proves 'selfish gene' exists

June 20, 2008 | User rating: 4 / 5 after 23 vote(s) | User comments: 5

A new discovery by a scientist from The University of Western Ontario provides conclusive evidence which supports decades-old evolutionary doctrines long accepted as fact.


Large reservoir of mitochondrial DNA mutations identified in humans

August 11, 2008 | User rating: 4.6 / 5 after 19 vote(s) | User comments: 4

Researchers at the University of Newcastle, England, and the Virginia Bioinformatics Institute at Virginia Tech in the United States have revealed a large reservoir of mitochondrial DNA mutations present in the general population. ...


Are we genetically programmed to be generous? Israeli scientists say yes

December 06, 2007 | User rating: 4.5 / 5 after 13 vote(s) | User comments: 3

Are those inclined towards generosity genetically programmed to behave that way? A team of researchers, including Dr. Ariel Knafo of the Psychology Department at the Hebrew University of Jerusalem, believes that this could ...


Identical twins not as identical as believed

February 15, 2008 | User rating: 3.9 / 5 after 73 vote(s) | User comments: 3

Contrary to our previous beliefs, identical twins are not genetically identical. This surprising finding is presented by American, Swedish, and Dutch scientists in a study being published today in the prestigious journal ...


Researchers discover gene behind devastating vitamin B12-related disorder

April 03, 2008 | User rating: not shown ( 2 vote(s) ) | User comments: 3

Swiss, British and Canadian researchers have identified the gene responsible for a rare but serious genetic disorder and have simultaneously provided more clues as to how vitamin B12 works in the body. Their results will ...


Researchers develop improved gene therapy agent

May 19, 2008 | User rating: 4.8 / 5 after 14 vote(s) | User comments: 3

Replacing one amino acid on the surface of a virus that shepherds corrective genes into cells could be the breakthrough scientists have needed to make gene therapy a more viable option for treating genetic diseases such as ...


Genes that both extend life and protect against cancer identified

October 14, 2007 | User rating: 4.8 / 5 after 42 vote(s) | User comments: 2

A person is 100 times more likely to get cancer at age 65 than at age 35. But new research reported today in the journal Nature Genetics identifies naturally occurring processes that allow many genes to both slow aging ...


Further evidence that genetics has a role in determining sexual orientation in men

November 07, 2007 | User rating: 3.7 / 5 after 12 vote(s) | User comments: 2

Is sexual orientation something people are born with - like the colour of their skin and eyes - or a matter of choice?


More 'functional' DNA in genome than previously thought

December 11, 2007 | User rating: 4.5 / 5 after 13 vote(s) | User comments: 2

Surrounding the small islands of genes within the human genome is a vast sea of mysterious DNA. While most of this non-coding DNA is junk, some of it is used to help genes turn on and off. As reported online this week in ...


Genetic switch for circadian rhythms discovered

December 12, 2007 | User rating: 4.6 / 5 after 10 vote(s) | User comments: 2

University of California, Irvine researchers have identified the chemical switch that triggers the genetic mechanism regulating our internal body clock.


15 human genomes each week

July 02, 2008 | User rating: 4.8 / 5 after 22 vote(s) | User comments: 2

The Wellcome Trust Sanger Institute has sequenced the equivalent of 300 human genomes in just over six months. The Institute has just reached the staggering total of 1,000,000,000,000 letters of genetic code that will be ...


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