Regular ArticleExtent of Nociceptive Dermatomes in Adult Rats Is Not Primarily Maintained by Axonal Competition
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Activation of liver x receptors prevents the spinal LTP induced by skin/muscle retraction in the thigh via SIRT1/NF-Κb pathway
2019, Neurochemistry InternationalCitation Excerpt :In the present study, we further showed that skin incision and muscle retraction of the thigh, which resulted in neither saphenous nerve demyelination or injury (Flatters, 2008; Ying et al., 2014), induced spinal LTP at C-fiber synapses. The electrical recording was performed at L5 spinal cord, which receives projection predominantly from the sciatic nerve, whereas the retracted sapherous nerve is known to have inputs into the spinal cord at L3 and L4 level (Bajrovic and Sketelj, 1998). Therefore we believed the LTP induced by SMIR here is a kind of heterosynaptic LTP, which was independent of C-fiber inputs.
Sciatic nerve injury: A simple and subtle model for investigating many aspects of nervous system damage and recovery
2014, Journal of Neuroscience MethodsCitation Excerpt :The peroneal and tibial branches contain a mixture of cutaneous and motor sensory complements, and should not be considered principally motor nerves (Swett et al., 1991). Given the interconnectedness of the lumbar plexus and associated nerves (Suppl. Figs. 4 and 5), it is not surprising that there is considerable overlap in the sensory dermatomes reported for the different lumbar nerves (Bajrovic and Sketelj, 1998; Pinter and Szolcsanyi, 1995; Sheth et al., 2002; Takahashi and Nakajima, 1996). Indeed, the dermatomes corresponding to the three sciatic branches (see Fig. 4 in Takahashi and Nakajima, 1996) are principally associated with the L4 root, but with considerable input from the L3 and L5 DRG (Bajrovic and Sketelj, 1998), while the epicritical nociceptors of the sural branch may not have an autonomous territory at all.
The neurological safety of epidural parecoxib in rats
2011, NeuroToxicologyCitation Excerpt :Acute toxicity was evaluated at 3 days and chronic toxicity at 7 and 21 days postinjection. Pinch toe testing was used to evaluate motor and sensory deficits (Bajrovic and Sketelj, 1998). The skin of the paw was pinched with fine forceps at 1-mm intervals from the toes to the ankle.
Sex-related differences in recovery of cutaneous nociception after end-to-side nerve repair in the rat
2009, Journal of Plastic, Reconstructive and Aesthetic SurgeryCitation Excerpt :It is possible that our experimental model did not allow the greater growing potential of the collaterally sprouting sensory axons in females than in males to result in more extensive reinnervation of the skin in the innervation field of the peroneal nerve in the dorsal foot. It has been shown that the nociceptive territories of peripheral nerves in the hind foot of the rat are overlapping and that the sural nerve has no autonomous innervation territory.24 After transection of the peroneal nerve at the beginning of our experiment, the cutaneous axon terminals of the uninjured sural nerve began to collaterally sprout into the adjacent denervated skin of the peroneal nerve territory in the dorsal foot.2,21,23,24,26