Word: paines
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...mechanism behind their discovery is that the spicy chemical, capsaicin, binds to certain receptors, which are found only on pain-sensing neurons...
Through this mechanism, the anesthetic can affect pain-sensing neurons exclusively but effectively...
Bean said that the capsaicin, despite being intended as an anesthetic, probably caused the rats extreme pain in the short term, although its pain-numbing effects last up to three hours...
...team of Harvard researchers has found that the chemical that makes chili peppers hot combined with a particular anesthetic can diminish pain in rats without any of the negative side effects seen in other pain killers...
...When injected or even put on the skin, the pain of capsaicin is quite intense,” said Alexander M. Binshtok, a post doctoral fellow at the Medical School who worked on the study...