News tagged with proceedings of the national academy of sciences
Related topics: brain , cells , genes , protein , stem cells
New research suggests all primates shared common blood type ancestor
(Medical Xpress)—An international team of researchers has found evidence that suggests that the ABO blood types found in all primates developed in a shared common ancestor. In their paper published in the ...
Medical research
Oct 23, 2012 |
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Scientists build 'mechanically active' DNA material
Artificial muscles and self-propelled goo may be the stuff of Hollywood fiction, but for UC Santa Barbara scientists Omar Saleh and Deborah Fygenson, the reality of it is not that far away. By blending their ...
Medical research
Oct 23, 2012 |
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New X-ray breast cancer imaging possible with 25 times reduced radiation dose
Scientists have developed a way to produce three-dimensional X-ray images of the breast at a radiation dose that is lower than the 2D radiographies used in clinics today. The new method enables the production ...
Cancer
Oct 22, 2012 |
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Breast cancer cells enticed to spread by 'tumorous environment' as well as genetic changes
(Medical Xpress)—A new study from Johns Hopkins researchers suggests that the lethal spread of breast cancer is as dependent on a tumor's protein-rich environment as on genetic changes inside tumor cells.
Cancer
Oct 22, 2012 |
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Immune cells make flexible choices
Our immune system must be tremendously complex to respond to the unending assault of viruses, bacteria and cancerous cells. One of the mechanisms used by the immune system to cope with the huge variety of possible threats ...
Immunology
Oct 22, 2012 |
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Genes and immune system shaped by childhood poverty, stress
(Medical Xpress)—A University of British Columbia and Centre for Molecular Medicine and Therapeutics (CMMT) study has revealed that childhood poverty, stress as an adult, and demographics such as age, sex and ethnicity, ...
Genetics
Oct 18, 2012 |
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Decreased gene activity is likely involved in childhood risk for anxiety and depression
Decreased activity of a group of genes may explain why in young children the "fear center" of the anxious brain can't learn to distinguish real threats from the imaginary, according to a new University of Wisconsin study.
Psychology & Psychiatry
Oct 18, 2012 |
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Poor kids twice as likely to suffer from arthritis, hypertension in adulthood
(Medical Xpress)—The tentacles of childhood poverty reach even further than previously thought, a new Cornell study finds.
Health
Oct 18, 2012 |
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Big, rapid gains made in human lifespan: study
(HealthDay)—It's said that life is short. But people living in developed countries typically survive more than twice as long as their hunter-gatherer ancestors did, making 72 the new 30, according to new ...
Medical research
Oct 15, 2012 |
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Developing stem cell model for Gaucher disease, neurodegenerative conditions
A new method of using adult stem cells as a model for the hereditary condition Gaucher disease could help accelerate the discovery of new, more effective therapies for this and other conditions such as Parkinson's, according ...
Neuroscience
Oct 15, 2012 |
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Neuroscientists isolate molecular 'when' and 'where' of memory formation
Neuroscientists from New York University and the University of California, Irvine have isolated the "when" and "where" of molecular activity that occurs in the formation of short-, intermediate-, and long-term memories. Their ...
Neuroscience
Oct 15, 2012 |
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New study moves researchers closer to lung cancer blood test
Early signs of lung cancer could be diagnosed using a simple blood test following a new discovery by scientists at the University of York.
Cancer
Oct 15, 2012 |
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Ebola antibody treatment, produced in plants, protects monkeys from lethal disease
A new Ebola virus study resulting from a widespread scientific collaboration has shown promising preliminary results, preventing disease in infected nonhuman primates using monoclonal antibodies.
Medical research
Oct 15, 2012 |
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Intermittent binge drinking could cause significant brain impairment within months, research shows
A study of binge-drinking rodents suggests that knocking back a few drinks every few days may swiftly reduce one's capacity to control alcohol intake. Scientists at The Scripps Research Institute (TSRI) found signs of cognitive ...
Addiction
Oct 15, 2012 |
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