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      Retracted: Upregulation of N-Type Voltage-Gated Calcium Channels Induces Neuropathic Pain in Experimental Autoimmune Neuritis

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          Upregulation of N-Type Voltage-Gated Calcium Channels Induces Neuropathic Pain in Experimental Autoimmune Neuritis

          Objective Guillain–Barré syndrome (GBS) is a common autoimmune disease of the peripheral nervous system, and there is still no effective treatment for GBS. This investigation intends to figure out the effect and mechanism of N-type voltage-gated calcium (Cav2.2) channels on neuropathic pain in GBS. Methods An experimental autoimmune neuritis (EAN) model was established in Lewis rats induced by myelin P253-78 peptide and complete Freund's adjuvant. Luxol fast blue (LFB) staining was used for observing the degree of cell infiltration and demyelination in the sciatic nerve of rats, ELISA for detecting IL-6 and TNF-α expression in the serum, qRT-PCR, and Western blot for measuring the expression of iNOS, MCP-1, and Cav2.2 in the sciatic nerve, respectively. Results EAN led to significant decreases in the mechanical withdrawal threshold, thermal withdrawal threshold, and mechanical hyperalgesia threshold and an increase in the withdrawal threshold to cold stimulation. The serum IL-6 and TNF-α expression was significantly increased, and the mRNA and protein expression of iNOS, MCP-1, and Cav2.2 in the sciatic nerve were significantly increased in the EAN rats. However, silencing Cav2.2 expression could significantly reverse the above EAN-caused results. Conclusion Silencing Cav2.2 expression can significantly reduce the clinical score, pathological injury, and mechanical allodynia, reducing the release of inflammatory factors, thus improving neuropathic pain in EAN rats.
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            Author and article information

            Contributors
            Journal
            Evid Based Complement Alternat Med
            Evid Based Complement Alternat Med
            ECAM
            Evidence-based Complementary and Alternative Medicine : eCAM
            Hindawi
            1741-427X
            1741-4288
            2023
            9 August 2023
            9 August 2023
            : 2023
            : 9806857
            Affiliations
            Article
            10.1155/2023/9806857
            10432044
            9264bf3c-b31c-4d13-a8b0-2959c31c26c8
            Copyright © 2023 Evidence-Based Complementary and Alternative Medicine.

            This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

            History
            : 8 August 2023
            : 8 August 2023
            Categories
            Retraction

            Complementary & Alternative medicine
            Complementary & Alternative medicine

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