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Tetrodotoxin (TTX) is a powerful sodium channel blocker extracted from the puffer fish. The analgesic effects of TTX were investigated in different animal pain models. Wistar rats were submitted to the formalin test and to partial ligation of the sciatic nerve (Seltzer's model). Swiss Webster mice were used in the writhing test. Rodents were divided into six groups receiving a s.c. injection of...
The saphenous partial ligation (SPL) model is a new, easily performed, rodent model of neuropathic pain that consists of a unilateral partial injury to the saphenous nerve. The present study describes behavioral, pharmacological and molecular properties of this model. Starting between 3 and 5 days after surgery, depending on the modality tested, animals developed clear behaviors indicative of neuropathic...
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