Neurogenic inflammation in the skin of the rabbit
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Abstract
A flare-like spread of vasodilatation can be demonstrated in the limb skin of the anaesthetised rabbit using laser doppler flowmetry. Spread of dilatation from a small mechanical injury (nicking the skin) extends 5–10 mm. The size and time course of the dilatation are as expected from the low frequency C-nociceptor firing that occurs in response to similar nearby injury. Since C-nociceptors cause significant vasodilator responses at frequencies less than 1 Hz, it is proposed that they may often have a proinflammatory action without producing any reflex or sensory effects.
Keywords
Mechanical Injury Sensory Effect Laser Doppler Flowmetry Vasodilator Response Neurogenic Inflammation
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© Birkhäuser Verlag 1988