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Life sciences news

Stroke death channel found

New therapies for stroke patients may soon be possible, thanks to a discovery made by a team of University of British Columbia neuroscience researchers who have found a new stroke death channel - the conduit through which key chemicals are lost from brain cells during stroke, causing the cell death that disables stroke victims.
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MRI reveals hidden emphysema in smokers

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A new imaging method has revealed early signs of emphysema in smokers with no external symptoms of the disease, according to a study published in the June issue of Radiology.

Drug team targets deep-sea reefs for new products

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Newly discovered deep-sea reefs harbor sponges and corals which host microorganisms that produce chemicals with pharmaceutical potential.

New Dendritic Cells Discovered

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A new type of cell that generates crucial cells of the immune system has been discovered at The Walter and Eliza Hall Institute. With this new knowledge, medical researchers can begin to consider the development of customized immune therapies using this new cell to target specific infections such as HIV, malaria and influenza; certain cancers; and even autoimmune diseases.

Leaner and stronger E. coli made in lab

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By stripping the E. coli genome of vast tracts of its genetic material - hundreds of apparently inconsequential genes - a team of Wisconsin researchers has created a leaner and meaner version of the bacterium that is a workhorse of modern biology and industry.

MIT chemist discovers secret behind nature's medicines

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After years of wondering how organisms managed to create self-medications, such as anti-fungal agents, chemists have discovered the simple secret.

Lizard "third eye" sheds light on evolution of color vision

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Lizards have given Johns Hopkins researchers a tantalizing clue to the evolutionary origins of light-sensing cells in people and other species.

RNA converted to DNA in vitro

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Scientists at The Scripps Research Institute have successfully converted an RNA enzyme (ribozyme) into a DNA enzyme (deoxyribozyme) through a process of accelerated in vitro evolution. The molecular conversion or transfer of both genetic information and catalytic function between these two different genetic systems, which are both based on nucleic acid-like molecules, is exactly what many scientists believe occurred during the very earliest period of earth's existence.

There's more than meets the eye in judging the size of an object

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Neuroscientists from the University of Washington and the University of Minnesota have found that the first area in the cortex of the human brain that receives information from the eyes processes the perceived size, rather than the actual size, of an object.

Science Class Experiment Reveals Vitamin B12 Secret

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For decades, scientists have wondered how living organisms manufacture the essential vitamin B12. Now, using laundry whitener and dirt-dwelling bacteria - the everyday ingredients of an undergraduate science experiment - researchers may have found the major clue they need to solve the mystery.

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