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Better Pain-relieving Methods Can Be Developed If We Understood The Science Behind Pain

by Rukmani Krishna on December 14, 2013 at 12:24 PM
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 Better Pain-relieving Methods Can Be Developed If We Understood The Science Behind Pain

A new technique that could result in better ways to relieve pain and monitor the healing process was developed by scientists who claim they are trying to understand the science behind pain.

Sandip Biswal, Frederick T. Chin, Justin Du Bois and colleagues note that current ways to diagnose pain basically involve asking the patient if something hurts.

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These subjective approaches are fraught with bias and can lead doctors in the wrong direction if a patient doesn't want to talk about the pain or can't communicate well. It can also be difficult to tell how well a treatment is really working.

No existing method can measure pain intensity objectively or help physicians pinpoint the exact location of the pain.

Past research has shown an association between pain and a certain kind of protein, called a sodium channel that helps nerve cells transmit pain and other sensations to the brain.
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Certain forms of this channel are overproduced at the site of an injury, so the team set out to develop an imaging method to visualize high concentrations of this protein.

They turned to a small molecule called saxitoxin, produced naturally by certain types of microscopic marine creatures, and attached a signal to it so they could trace it by PET imaging.

PET scanners are used in hospitals to diagnose diseases and injuries.

When the researchers injected the molecule into rats, they saw that the molecule accumulated where the rats had nerve damage.

The rats didn't show signs of toxic side effects.

The study is published in the Journal of the American Chemical Society.

Source: ANI
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