Human cells are thought to produce thousands of different microRNAs (miRNAs)—small pieces of genetic material that help determine which genes are turned on or off at a given time. miRNAs are an important part of normal ...
Biochemistry
May 9, 2012
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(Phys.org) -- Our genes control many aspects of who we are — from the colour of our hair to our vulnerability to certain diseases — but how are the genes, and consequently the proteins they make themselves controlled? ...
Biochemistry
Apr 27, 2012
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About 10 years ago, scientists discovered a new type of genetic material called microRNA, which appears to turn genes on or off inside a cell. More recently, they found that these genetic snippets often go haywire in cancer ...
Biochemistry
Aug 31, 2011
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Whenever it hears an unfamiliar song from a bird of the same species, a zebra finch stops chirping, hopping and grooming. It listens attentively for minutes at a time, occasionally cocking its head but otherwise immobile. ...
Plants & Animals
Jun 30, 2011
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Each year, dengue fever infects as many as 100 million people while yellow fever is responsible for about 30,000 deaths worldwide. Both diseases are spread by infected female Aedes aegypti mosquitoes, which require vertebrate ...
Cell & Microbiology
Dec 2, 2010
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(PhysOrg.com) -- Researchers at the University of Pennsylvania have developed a new electronic method for detecting microRNA isolated from living cells. MicroRNAs are a class of small biomolecules that control gene expression ...
Bio & Medicine
Oct 26, 2010
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While most commonly associated with mononucleosis, Epstein-Barr virus (EBV) has been linked to many diseases that affect people long after the initial infection takes place, including some forms of cancer. In the current ...
Biochemistry
Oct 25, 2010
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(PhysOrg.com) -- Yale University researchers have discovered a novel viral survival strategy, an insight that could help scientists better understand how viruses contribute to diseases such as cancer and AIDS.
Biochemistry
Jun 18, 2010
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(PhysOrg.com) -- MicroRNAs can move between cells and play a role in their communication. This discovery was made by plant researchers at Uppsala University together with colleagues from Finland and the US when they were ...
Biotechnology
May 4, 2010
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Ever since tiny bits of genetic material known as microRNA were first characterized in the early 1990s, scientists have been discovering just how important they are to regulating the activity of genes within cells.
Biotechnology
Apr 21, 2010
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