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Medicine & Health / Genetics news 1234

Study of dark-skinned mice leads to protein linked to bone marrow failure in humans

July 20, 2008 | User rating: not shown ( 2 vote(s) ) | No comments yet

The study of dark-skinned mice has led to a surprising finding about a common protein involved in tumor suppression, report researchers at the Stanford University School of Medicine. The results may lead to new treatments ...


Researchers discover a gene that regulates and blocks ovulation

July 17, 2008 | User rating: not shown ( 3 vote(s) ) | No comments yet

A group of Canadian and European researchers have unlocked the mystery of a gene with the potential to both regulate and block ovulation. The new study – a collaboration between the Université de Montréal in Canada and the ...


Researchers find a partially shared genetic profile between schizophrenia and bipolar disorder

July 17, 2008 | User rating: not shown ( 2 vote(s) ) | No comments yet

Both schizophrenia and bipolar disorder can be disabling conditions, and both present clinically with significant mood and psychotic symptoms. These two illnesses also share genetic variants that might be involved in the ...


Can you be born a couch potato?

July 16, 2008 | User rating: not shown ( 4 vote(s) ) | User comments: 1

The key to good health is to be physically active. The key to being active is… to be born that way? The well-documented importance of exercise in maintaining fitness has created the idea that individuals can manage their ...


Researchers discover gene signatures for scleroderma

July 16, 2008 | User rating: not shown ( 1 vote(s) ) | No comments yet

Distinct genetic profiles can discern different groups of patients with scleroderma, a vexing autoimmune disease in which the body turns against itself, Dartmouth Medical School researchers report. Their discovery of distinguishing ...


'Smothered' genes combine with mutations to yield poor outcome in cancer patients

July 15, 2008 | User rating: not rated yet | No comments yet

Johns Hopkins Kimmel Cancer Center researchers have identified a set of genes in breast and colon cancers with a deadly combination of traditional mutations and "smothered" gene activity that may result in poor outcomes for ...


New study replicates association between genetic variation and antidepressant treatment response

July 15, 2008 | User rating: not shown ( 1 vote(s) ) | No comments yet

Pharmacogenetics, the study of genetic variation that influences an individual's response to drugs, is an important and growing focus in all of medical research, including psychiatry. It is a complex field, however, revealed ...


Mutant testis cells behind genetic disorder have survival advantage

July 14, 2008 | User rating: 4.3 / 5 after 7 vote(s) | No comments yet

In a cruel irony, testis cells carrying the mutation that causes Apert's syndrome are fitter than normal cells, even though children born from sperm derived from those cells are weakened by fused fingers, toes and skulls, ...


Gene produces hormones that lead to obesity

July 14, 2008 | User rating: not shown ( 2 vote(s) ) | No comments yet

(PhysOrg.com) -- Obesity and common weight gain share a genetic basis. Professor Philippe Froguel, from Imperial College in Great Britain, and his team from the laboratoire Génomique et physiologie moléculaire des maladies ...


Scientists discover key patterns in the packaging of genes

July 11, 2008 | User rating: 4.8 / 5 after 14 vote(s) | User comments: 1

Although every cell of our bodies contains the same genetic instructions, specific genes typically act only in specific cells at particular times. Other genes are "silenced" in a variety of ways. One mode of gene silencing ...


Genetic variations put youth at higher risk for lifetime of tobacco addiction

July 11, 2008 | User rating: not shown ( 1 vote(s) ) | No comments yet

Common genetic variations affecting nicotine receptors in the nervous system can significantly increase the chance that European Americans who begin smoking by age 17 will struggle with lifelong nicotine addiction, according ...


Enzyme key to 'sister act' that maintains genome stability

July 10, 2008 | User rating: not shown ( 1 vote(s) ) | No comments yet

Keeping the genome stable is a "sister act" of matched chromatids – the pairs of the double helix DNA molecule that exist during the chromosome duplication in the S phase of the cell cycle.


Herceptin targets breast cancer stem cells

July 09, 2008 | User rating: not rated yet | User comments: 1

A gene that is overexpressed in 20 percent of breast cancers increases the number of cancer stem cells, the cells that fuel a tumor's growth and spread, according to a new study from the University of Michigan Comprehensive ...


Researchers reveal types of genes necessary for brain development

July 07, 2008 | User rating: not shown ( 4 vote(s) ) | No comments yet

Researchers from Harvard Medical School and Brandeis University have successfully completed a full-genome RNAi screen in neurons, showing what types of genes are necessary for brain development. Details of the screen and ...


Common mutations linked to common obesity in Europeans

July 07, 2008 | User rating: 4.2 / 5 after 13 vote(s) | No comments yet

Scientists have discovered two common genetic mutations in people of European ancestry, which affect the production of several hormones controlling our appetite. The mutations have a significant effect on ...


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