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As population exploded, more rare genes entered human genome

(Medical Xpress) -- As the Earth's human population has skyrocketed since the rise of agriculture some 10,000 years ago -- to 7 billion people from a few million -- so, too, has the number of rare genetic variants.

Genetics created May 11, 2012 | popularity 4.7 / 5 (7) | comments 1 | with audio podcast

Scientists successfully test first gene therapy against aging-associated decline

A number of studies have shown that it is possible to lengthen the average life of individuals of many species, including mammals, by acting on specific genes. To date, however, this has meant altering the animals' genes ...

Genetics created May 14, 2012 | popularity 4.8 / 5 (6) | comments 1

Researchers find genetic link to PTSD

(Medical Xpress) -- A team of Swiss and German researchers has found that a certain gene allele can be linked to increased emotional memory retention and because of that appears to be a factor in people who suffer from post ...

Genetics created May 15, 2012 | popularity 4.8 / 5 (5) | comments 0 | with audio podcast report

Mystery gene reveals new mechanism for anxiety disorders

A novel mechanism for anxiety behaviors, including a previously unrecognized inhibitory brain signal, may inspire new strategies for treating psychiatric disorders, University of Chicago researchers report.

Genetics created May 15, 2012 | popularity 4.5 / 5 (4) | comments 0 | with audio podcast

Researchers identify key genes and prototype predictive test for schizophrenia

An Indiana University-led research team, along with a group of national and international collaborators, has identified and prioritized a comprehensive group of genes most associated with schizophrenia that together can generate ...

Genetics created May 15, 2012 | popularity 4.7 / 5 (3) | comments 1 | with audio podcast

Mice with big brains provide insight into brain regeneration and developmental disorders

Scientists at the Ottawa Hospital Research Institute (OHRI) and the University of Ottawa (uOttawa) have discovered that mice that lack a gene called Snf2l have brains that are 35 per cent larger than normal. ...

Genetics created May 15, 2012 | popularity 3.5 / 5 (4) | comments 0 | with audio podcast

New evidence that many genes of small effect influence economic decisions and political attitudes

Genetic factors explain some of the variation in a wide range of people's political attitudes and economic decisions – such as preferences toward environmental policy and financial risk taking – but most associations ...

Genetics created May 15, 2012 | popularity 3.3 / 5 (3) | comments 0 | with audio podcast

Zebrafish study isolates gene related to autism, schizophrenia and obesity

What can a fish tell us about human brain development? Researchers at Duke University Medical Center transplanted a set of human genes into a zebrafish and then used it to identify genes responsible for head ...

Genetics created 8 hours ago | popularity 4.5 / 5 (2) | comments 0 | with audio podcast

Evolution's gift may also be at the root of a form of autism

A recently evolved pattern of gene activity in the language and decision-making centers of the human brain is missing in a disorder associated with autism and learning disabilities, a new study by Yale University researchers ...

Genetics created May 10, 2012 | popularity 3.5 / 5 (2) | comments 2 | with audio podcast

Discovery of a gene that causes Joubert Syndrome

C5ORF42 was identified as the gene that causes Joubert Syndrome in a number of families in the Lower St. Lawrence region of Quebec where the causal gene had remained unknown since the initial description of the syndrome in ...

Genetics created May 10, 2012 | popularity 5 / 5 (1) | comments 0

Children with rare, incurable brain disease improve after gene therapy

Using gene transfer techniques pioneered by University of Florida faculty, Taiwanese doctors have restored some movement in four children bedridden with a rare, life-threatening neurological disease.

Genetics created 7 hours ago | popularity 5 / 5 (1) | comments 0 | with audio podcast

Sundown syndrome-like symptoms in fruit flies may be due to high dopamine levels

Perelman School of Medicine at the University of Pennsylvania researchers have discovered a mechanism involving the neurotransmitter dopamine that switches fruit fly behavior from being active during the day ...

Genetics created May 14, 2012 | popularity 4 / 5 (1) | comments 0 | with audio podcast

Chromosomal screening improves IVF pregnancy rates

(HealthDay) -- Screening embryos produced by in vitro fertilization using array comparative genomic hybridization (aCGH) plus morphology improves pregnancy rates over screening by morphology alone in single ...

Genetics created May 09, 2012 | popularity 2 / 5 (1) | comments 0