Activation of latent efferent sympathetic fibers in a viscero-visceral reflex circle under conditions of visceral pain in rats

Activation of “silent” efferent fibers due to stimulation of the mesenteric nerve within a definite frequency range is described; the effect is supposed to result from sensitization in reflex circles related to visceral pain. Neirofiziologiya/Neurophysiology, Vol. 38, No. 4, pp. 368–369, July–August, 2006.