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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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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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There has been a lot of controversy in recent years over the issue of whether exogenous microRNA molecules can be absorbed from food and even have a physiological effect. A new study by ETH professor Markus Stoffel using ...
Biochemistry
Sep 8, 2015
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Dodder, a parasitic plant that causes major damage to crops in the U.S. and worldwide every year, can silence the expression of genes in the host plants from which it obtains water and nutrients. This cross-species gene regulation, ...
Biotechnology
Jan 3, 2018
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166
In a "proof of concept" study, scientists at Johns Hopkins Medicine say they have successfully delivered nano-size packets of genetic code called microRNAs to treat human brain tumors implanted in mice. The contents of the ...
Bio & Medicine
Jul 12, 2018
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122
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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A new power-free microfluidic chip developed by researchers at the RIKEN Advanced Science Institute (ASI) enables detection of microRNA from extremely small sample volume in only 20 minutes. By drastically reducing the time ...
Analytical Chemistry
Nov 7, 2012
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(Phys.org)—A plant can reproduce successfully only if it flowers at the appropriate time. Therefore, a complex network of photoreceptors and other proteins has evolved to monitor environmental conditions such as light and ...
Cell & Microbiology
Feb 7, 2013
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MicroRNAs are small molecules that regulate gene activity by binding to and destroying RNAs produced by the genes. More than 60% of all human genes are estimated to be regulated by microRNAs; therefore, it is not surprising ...
Cell & Microbiology
Sep 21, 2023
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