News tagged with proceedings of the national academy of sciences
Related topics: brain , cells , genes , protein , stem cells
Genes for autism and schizophrenia only active in developing brains
Genes linked to autism and schizophrenia are only switched on during the early stages of brain development, according to a study in mice led by researchers at the University of Oxford.
Genetics
Feb 11, 2013 |
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Unchecked antibiotic use in animals may affect global human health
The increasing production and use of antibiotics, about half of which is used in animal production, is mirrored by the growing number of antibiotic resistance genes, or ARGs, effectively reducing antibiotics' ability to fend ...
Medical research
Feb 11, 2013 |
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Chemical reaction keeps stroke-damaged brain from repairing itself
Nitric oxide, a gaseous molecule produced in the brain, can damage neurons. When the brain produces too much nitric oxide, it contributes to the severity and progression of stroke and neurodegenerative diseases ...
Medical research
Feb 04, 2013 |
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Some cancer mutations slow tumor growth
A typical cancer cell has thousands of mutations scattered throughout its genome and hundreds of mutated genes. However, only a handful of those genes, known as drivers, are responsible for cancerous traits ...
Cancer
Feb 04, 2013 |
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Damaged blood vessels loaded with amyloid worsen cognitive impairment in Alzheimer's disease
A team of researchers at Weill Cornell Medical College has discovered that amyloid peptides are harmful to the blood vessels that supply the brain with blood in Alzheimer's disease—thus accelerating cognitive decline by ...
Alzheimer's disease & dementia
Feb 04, 2013 |
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Researchers find certain kind of brain damage can cause people to be more reckless with investments
(Medical Xpress)—A team of researchers from several universities in Europe has found that human test subjects with a damaged portion of their brain were likely to invest more money in a risky trustee than ...
Neuroscience
Jan 22, 2013 |
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Gold nanoparticles show new way to kill lymphoma without chemotherapy
How do you annihilate lymphoma without using any drugs? Starve it to death by depriving it of what appears to be a favorite food: HDL cholesterol.
Cancer
Jan 21, 2013 |
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Researchers show how cells' DNA repair machinery can destroy viruses
A team of researchers based at Johns Hopkins has decoded a system that makes certain types of immune cells impervious to HIV infection. The system's two vital components are high levels of a molecule that ...
Medical research
Jan 21, 2013 |
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Possible role for Huntington's gene discovered
About 20 years ago, scientists discovered the gene that causes Huntington's disease, a fatal neurodegenerative disorder that affects about 30,000 Americans. The mutant form of the gene has many extra DNA ...
Genetics
Jan 16, 2013 |
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New tool to help brain surgeons, one step closer to operating room
(Medical Xpress)—A new tool that could allow for faster, more comprehensive testing of brain tissue during surgery successfully identified the cancer type, grade and tumor margins in five brain surgery ...
Surgery
Jan 09, 2013 |
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Pills found in ancient Tuscan wreck resemble modern medicine
(Medical Xpress)—A team of Italian researchers studying the contents of a small tin found aboard the wreck of a second century B.C. cargo ship claim its contents are pills meant to cure eye or skin ailments. ...
Medications
Jan 08, 2013 |
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Researchers provide definitive proof for receptor's role in synapse development
Jackson Laboratory researchers led by Associate Professor Zhong-wei Zhang, Ph.D., have provided direct evidence that a specific neurotransmitter receptor is vital to the process of pruning synapses in the brains of newborn ...
Neuroscience
Dec 31, 2012 |
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Immune system changes may drive aggressiveness of recurrent tumors
Nearly half of the 700,000 cancer patients who undergo surgical removal of a primary tumor each year suffer a recurrence of their disease at some point, and many of those patients will eventually die from their disease. The ...
Cancer
Dec 27, 2012 |
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Enzyme accelerates malignant stem cell cloning in chronic myeloid leukemia
An international team, headed by researchers at the University of California, San Diego School of Medicine, has identified a key enzyme in the reprogramming process that promotes malignant stem cell cloning ...
Cancer
Dec 24, 2012 |
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How excess holiday eating disturbs your 'food clock'
(Medical Xpress)—If the sinful excess of holiday eating sends your system into butter-slathered, brandy-soaked overload, you are not alone: People who are jet-lagged, people who work graveyard shifts and ...
Medical research
Dec 24, 2012 |
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