When a zebra finch hears a new song from a member of its own species, the experience changes gene expression in its brain in unexpected ways, researchers report. The sequential switching on and off of thousands ...
Jun 26, 2009
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A team of scientists from The Scripps Research Institute, Katholeike Universiteit Leuven, and the University of Antwerp, Belgium, among other institutions, has created a genetically modified fruit fly that mimics key features ...
Jun 24, 2009
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MicroRNAs are the newest kid on the genetic block. By regulating the unzipping of genetic information, these tiny molecules have set the scientific world alight with such wide-ranging applications as onions ...
Jun 17, 2009
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Viruses are molecular marauders, plundering cells for the resources they need to multiply. Of central importance for viruses is the ability to commandeer cellular gene expression machinery. Several human herpesviruses put ...
May 27, 2009
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The relationship between the dental disease periodontitis and coronary heart disease (CHD) has been known for several years. Although a genetic link seemed likely, until now its existence was uncertain. Now, for the first ...
May 25, 2009
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Recycling is important not only on a global scale, but also at the cellular level, since key molecules tend to be available in limited numbers. This means a cell needs to have efficient recycling mechanisms. Researchers at ...
Apr 30, 2009
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Bioinformatics researchers from UC San Diego just moved closer to unlocking the mystery of how human cells switch from "proliferation mode" to "specialization mode." This computational biology work from the ...
Apr 20, 2009
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(PhysOrg.com) -- For the past decade, researchers have tried to tweak cells at the gene and nucleus level to reprogram their identity. Now, working on the idea that the signature of a cell is defined by molecules ...
Apr 16, 2009
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(PhysOrg.com) -- In a new study, researchers at the University of Illinois have identified and visualized the signaling pathways in protein-RNA complexes that help set the genetic code in all organisms. The ...
Apr 14, 2009
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(PhysOrg.com) -- A research project led by University of Notre Dame biologist Malcolm J. Fraser Jr. may soon lead to the eradication of dengue fever, a mosquito-borne viral disease that annually infects more ...
Apr 13, 2009
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A small piece of RNA, or microRNA (miRNA), ratchets down the activity of the tumor-suppressor gene p53, according to a study by Whitehead Institute and National University of Singapore researchers.
Mar 17, 2009
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Researchers at the University of Pennsylvania School of Medicine have identified a master switch that might prevent cancer cells from metastasizing from a primary tumor to other organs. The switch is a protein ...
Mar 16, 2009
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For the tiny soil-dwelling nematode worm Caenorhabditis elegans, life is usually a situation of feast or famine. Researchers at the California Institute of Technology (Caltech) have found that this worm has evolved a surprisingly ...
Mar 09, 2009
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Researchers have created an algorithm that meshes existing data to produce a clearer step-by-step flow chart of how cells respond to stimuli. Using this new method, Whitehead Institute and Massachusetts Institute of Technology ...
Feb 22, 2009
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For RNA, the gateway to a productive life outside the nucleus is the nuclear pore complex, an amalgamation of 30 kinds of proteins that regulates all traffic passing through the nuclear membrane. New research from Rockefeller ...
Feb 11, 2009
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