Journal of Semnan University of Medical Sciences
Evaluation of new method to induce neuritis and comparison its symptoms with current chronic constriction injury method in male rat
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Abstract
Introduction: There are various animal models to investigate neuropathic pain which the most usual one is chronic constriction injury method. The aim of the present study was the evaluation of neuropathic pain following chronic spiral suturing around the sciatic nerve without ligation as a new model. Materials and Methods: Thirty Wistar male rats, weighting 180-220 gram randomly were divided into three groups as sham, chronic constriction injury (CCI), and chronic sciatic spiral suturing (CSS). CCI was performed by four loos ligation using catgut chromic suture around sciatic nerve. CSS was performed through spirally suturing of catgut chromic four times around the sciatic nerve without any ligation. In the sham group, muscle and skin were sutured after exposing the nerve. To determine mechanical allodynia and thermal hyperalgesia, Von Frey filaments and plantar test devise were used respectively every four days during three weeks. Results: CCI led to significant mechanical allodynia (P
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Copyright
© 2021, Author(s). This open-access article is available under the Creative Commons Attribution 4.0 (CC BY 4.0) International License (https://creativecommons.org/licenses/by/4.0/), which allows for unrestricted use, distribution, and reproduction in any medium, provided that the original work is properly cited.
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