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Propofol discovery may help lead to development of new anaesthetics
Date:9/22/2013

New research on the most commonly used anaesthetic drug could help to unravel a long-standing mystery about how it induces a pain-free, sleep-like state.

General anaesthetics are administered to tens of millions of people every year in hospitals, where they are used to sedate patients undergoing surgery. Despite this, scientists have yet to understand how the drug interacts with its targets in brain cells to achieve this effect.

Following years of research on propofol, which has become the most commonly used anaesthetic since it was introduced in the 1980s, researchers at Imperial College London and Washington University School of Medicine have published a study in the journal Nature Chemical Biology in which they identify exactly how the drug acts at a molecular level.

Researchers had already identified the receptor that propofol interacts with in the brain. Having a more detailed picture of exactly how propofol works in the brain may help scientists to design new versions of the drug that reduce the risks involved in surgery and ultimately improve patient safety.

Propofol has also become widely known as the drug linked to the death of superstar Michael Jackson in 2009.

"The job of the skilled anaesthetist is so important because in addition to the desirable effects of anaesthetics which make surgery possible, current anaesthetics can have unwanted effects on the heart, on blood pressure and can also interfere with breathing during surgery," said the study's co-principal investigator Professor Nick Franks from the Department of Life Sciences at Imperial College London.

"Whilst propofol is the best anaesthetic we have today, it is important for patient safety that we come up with new versions of the drug that work just as well or better as anaesthetics, but have fewer or less dangerous side effects."

"For many years, the mechanisms by which anaesthetics act have remained elusive," explain
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Contact: Simon Levey
s.levey@imperial.ac.uk
44-020-759-46702
Imperial College London
Source:Eurekalert

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