News tagged with biological effects
Why some stress is good for you? Acute stress primes the brain to do better on memory tasks two weeks later
(Medical Xpress)—Overworked and stressed out? Look on the bright side. Some stress is good for you.
Neuroscience
Apr 16, 2013 |
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Study reveals how melanoma evades chemotherapy
Nitric oxide (NO), a gas with many biological functions in healthy cells, can also help some cancer cells survive chemotherapy. A new study from MIT reveals one way in which this resistance may arise, and ...
Cancer
Apr 08, 2013 |
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Researchers develop novel anti-body vaccine that blocks addictive nicotine chemicals from reaching the brain
Researchers at Weill Cornell Medical College have developed and successfully tested in mice an innovative vaccine to treat nicotine addiction.
Medical research
Jun 27, 2012 |
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New stem cell technique promises abundance of key heart cells cardiomyocytes
Cardiomyocytes, the workhorse cells that make up the beating heart, can now be made cheaply and abundantly in the laboratory.
Medical research
May 28, 2012 |
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Cancer may require simpler genetic mutations than previously thought
Chromosomal deletions in DNA often involve just one of two gene copies inherited from either parent. But scientists haven't known how a deletion in one gene from one parent, called a "hemizygous" deletion, can contribute ...
Cancer
May 25, 2012 |
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Social stress affects immune system gene expression in monkeys
The ranking of a monkey within her social environment and the stress accompanying that status dramatically alters the expression of nearly 1,000 genes, a new scientific study reports. The research is the first ...
Genetics
Apr 09, 2012 |
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Study identifies growth factor essential to the most common malignant pediatric brain tumor
A multi-institutional team led by Massachusetts General Hospital (MGH) researchers has identified a molecular pathway that appears to be essential for the growth and spread of medulloblastoma, the most common ...
Cancer
Feb 28, 2013 |
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Link found between insulin sensitivity, cells' powerhouses
If findings of a new study in mice are any indication, it might be possible to fine-tune cellular powerhouses called mitochondria, tweaking one aspect to increase insulin sensitivity, reduce body and fat ...
Medical research
Jan 29, 2013 |
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Synthetic 'poop' can cure C. difficile infection, study finds
A synthetic "poop" developed at the University of Guelph can cure nasty gastrointestinal infections caused by Clostridium difficile, a toxin-producing bacterium.
Diseases, Conditions, Syndromes
Jan 08, 2013 |
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Individual gene differences can be tested in zebrafish
The zebrafish is a potential tool for testing one class of unique individual genetic differences found in humans, and may yield information helpful for the emerging field of personalized medicine, according to a team led ...
Genetics
Oct 25, 2012 |
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Macrophage accumulation of triglycerides yields insights into atherosclerosis
A research report appearing in the Journal of Leukocyte Biology helps explain how specific immune cells, called macrophages, accumulate triglycerides to support their function. Because a characteristic finding in atherosclerosis is the ...
Medical research
Oct 01, 2012 |
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New insights on control of pituitary hormone outside of brain has implications for breast cancer
The hormone prolactin is produced by the pituitary gland in the brain and then travels via the bloodstream to cells throughout the body, where it exerts multiple reproductive and metabolic effects, most notably ...
Genetics
Oct 01, 2012 |
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Stress hormones: Good or bad for posttraumatic stress disorder risk?
Glucocorticoids, a group of hormones that includes cortisol, are considered stress hormones because their levels increase following stress. When their relationship to stress was first identified, it was shown that the release ...
Psychology & Psychiatry
Sep 12, 2012 |
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Fasting makes brain tumors more vulnerable to radiation therapy
A new study from USC researchers is the first to show that controlled fasting improves the effectiveness of radiation therapy in cancer treatments, extending life expectancy in mice with aggressive brain tumors.
Cancer
Sep 11, 2012 |
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Scientists devise powerful new method for finding therapeutic antibodies
Scientists at The Scripps Research Institute have found a new technique that should greatly speed the discovery of medically and scientifically useful antibodies, immune system proteins that detect and destroy invaders such ...
Medical research
Sep 11, 2012 |
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