News tagged with molecular
Seeing how evolutionary mechanisms yield biological diversity
6 hours ago |
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An international team of scientists has discovered how changes in both gene expression and gene sequence led to the diversity of visual systems in African cichlid fish.
Sniffing out clues to dogs' compulsive behavior
8 hours ago |
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(PhysOrg.com) -- At first glance, a dog chasing its tail seems a harmless, if fruitless, pursuit. But for many dogs and their owners, the habit has a dark side, one that means endless hours and energy spent ...
Mystery solved: Scientists now know how smallpox kills
10 hours ago |
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A team of researchers working in a high containment laboratory at the Centers for Disease Control and Prevention in Atlanta, GA, have solved a fundamental mystery about smallpox that has puzzled scientists long after the ...
Adding a genetic supertool: Genome Analyzer fuels research dreams and tomorrow's cures
12 hours ago |
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To identify the hemophilia mutation that affected Queen Victoria and her European relatives, scientific detectives used a cutting-edge "deep sequencing tool." Able to trace rare genetic disease mutations, the tool can turn ...
Up a little on the left... now, over to the right... Scientists find a source of nonallergic itch
12 hours ago |
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Scratching below the surface of a troublesome sensation that's equal parts tingle-tickle-prickle, sensory scientists from Johns Hopkins have discovered in mice a molecular basis for nonallergic itch.
Glowing channels: Microanalysis system for rapid mercury detection
Chemistry / Analytical Chemistry
20 hours ago |
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(PhysOrg.com) -- Water contaminated with mercury is very dangerous for both people and the environment, as mercury is one of the most toxic heavy metals. Though laboratory analyses do deliver precise quantitative measurements, ...
Researchers Identify Tuberculosis Strain That Thrives on Antibiotic
Dec 21, 2009 |
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(PhysOrg.com) -- Scientists have identified a strain of antibiotic-resistant tuberculosis that thrives in the presence of rifampin, a front-line drug in the treatment of tuberculosis. The bacterium was identified in a patient ...
Protein that represses genes may play role in cell growth
Dec 21, 2009 |
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(PhysOrg.com) -- A Cornell study shows the protein not only activates some genes involved in the regulation of cell growth and signaling, but also may play a role in preventing cancers by inhibiting cell proliferation.
Protein inhibits cancer cell growth
Dec 21, 2009 |
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(PhysOrg.com) -- Researchers at the University of Toronto and Goethe University in Germany have discovered a protein that can inhibit the growth of cancer cells, providing crucial clues for the future development of new drugs ...
Making New Enzymes to Engineer Plants for Biofuel Production
Dec 21, 2009 |
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(PhysOrg.com) -- Brookhaven scientists have created a new enzyme with the potential to interfere with a key cell-wall component in plants, possibly leading to plants that are easier to "digest" and convert ...
Scientists take a step towards uncovering the histone code
Dec 20, 2009 |
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Researchers at Emory University School of Medicine have determined the structures of two enzymes that customize histones, the spool-like proteins around which DNA coils inside the cell.
Pores finding reveals targets for cancer and degenerative disease
Dec 18, 2009 |
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Walter and Eliza Hall Institute scientists have identified a key step in the biological process of programmed cell death, also called apoptosis.
Within a cell, actin keeps things moving
Dec 17, 2009 |
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(PhysOrg.com) -- Using new technology developed in his University of Oregon lab, chemist Andrew H. Marcus and his doctoral student Eric N. Senning have captured what they describe as well-orchestrated, actin-driven, ...
Light used to map effect of neurons on one another
Medicine & Health / Neuroscience
Dec 17, 2009 |
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(PhysOrg.com) -- Scientists at Harvard University have used light and genetic trickery to trace out neurons' ability to excite or inhibit one another, literally shedding new light on the question of how neurons ...
Researchers publish review of the 'molecular basis of colorectal cancer'
Dec 16, 2009 |
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Every year in the United States, 160,000 cases of colorectal cancer are diagnosed, and 57,000 patients die of the disease, making it the second leading cause of death from cancer among adults, after lung cancer.
