News tagged with biological systems
Go with your gut: Research sheds light on how microbes can interact with drugs
Scientists are already working to develop treatments that can be tailored to an individual's genetics, but what about tailoring treatments based on the genetics of the trillions of microbes that live in a ...
Medical research
Feb 15, 2013 |
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First animal model of recent human evolution
The first animal model of recent human evolution reveals that a single mutation produced several traits common in East Asian peoples, from thicker hair to denser sweat glands, an international team of researchers reports.
Genetics
Feb 14, 2013 |
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Imaging fish in 3-D : Automated system for high-speed analysis of vertebrate larvae could aid drug development (w/ Video
Zebrafish larvae—tiny, transparent and fast-growing vertebrates—are widely used to study development and disease. However, visually examining the larvae for variations caused by drugs or genetic mutations is an imprecise, ...
Medical research
Feb 13, 2013 |
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Synthetic circuit allows dialing gene expression up or down in human cells
Scientists who built a synthetic gene circuit that allowed for the precise tuning of a gene's expression in yeast have now refined this new research tool to work in human cells, according to research published online in Nature Co ...
Genetics
Feb 12, 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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Gene sequencing project mines data once considered 'junk' for clues about cancer
Genome sequencing data once regarded as junk is now being used to gain important clues to help understand disease. The latest example comes from the St. Jude Children's Research Hospital – Washington University Pediatric ...
Cancer
Jan 24, 2013 |
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Researchers find causality in the eye of the beholder
We rely on our visual system more heavily than previously thought in determining the causality of events. A team of researchers has shown that, in making judgments about causality, we don't always need to use cognitive reasoning. ...
Neuroscience
Jan 10, 2013 |
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Dopamine-receptor gene variant linked to human longevity
(Medical Xpress)—A variant of a gene associated with active personality traits in humans seems to also be involved with living a longer life, UC Irvine and other researchers have found.
Neuroscience
Jan 03, 2013 |
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Cholesterol boosts the memory of the immune system
The memory of the human immune system is critical for the development of vaccines. Only if the body recognizes a pathogen with which it has already come into contact in the case of a second infection, the ...
Immunology
Dec 24, 2012 |
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Helping the nose know: Researcher answers 100-year-old question about how olfactory feedback mechanism works
More than a century after it was first identified, Harvard scientists are shedding new light on a little-understood neural feedback mechanism that may play a key role in how the olfactory system works in the brain.
Neuroscience
Dec 19, 2012 |
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Scientists discover how HIV virus gains access to carrier immune cells to spread infection
Scientists from the AIDS Research Institute IrsiCaixa have identified how HIV, the virus that causes AIDS, enters the cells of the immune system enabling it to be dispersed throughout an organism. The new ...
HIV & AIDS
Dec 18, 2012 |
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Research on blood vessel proteins holds promise for controlling 'blood-brain barrier'
Working with mice, Johns Hopkins researchers have shed light on the activity of a protein pair found in cells that form the walls of blood vessels in the brain and retina, experiments that could lead to therapeutic ...
Medical research
Dec 06, 2012 |
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Changes in the gut bacteria protect against stroke
(Medical Xpress)—Researchers at Chalmers University of Technology and University of Gothenburg demonstrate that an altered gut microbiota in humans is associated with symptomatic atherosclerosis and stroke. ...
Medical research
Dec 05, 2012 |
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New findings on glucagon synthesis
Researchers at Karolinska Institutet in Sweden have shown that the cells that produce glucagon are stimulated by the hormone itself. A previous study by the same group demonstrated that this principle also applies to insulin. ...
Medical research
Dec 03, 2012 |
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Loss of gene expression may trigger cardiovascular disease, researchers find
(Medical Xpress)—A Yale-led team of researchers has uncovered a genetic malfunction that may lead to hardening of the arteries and other forms of cardiovascular disease. The study appears in the journal Cell Reports.
Medical research
Nov 30, 2012 |
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