The ion
channel protein called TRPA1 is present on sensory neurons, which are located
in most body tissues. Anesthetics activate this protein, also called the
mustard-oil receptor, causing nerves to "fire.” That message tells the
brain that something painful is happening. “Probably
what is most significant for people to know is that this activation of a pain
channel actually adds to post-surgery inflammation, so what we didn’t know
before was that you could exacerbate swelling of
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