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Bee venom acupuncture reduces neuroinflammation modulating microglia/macrophage phenotype polarization in spinal cord injury compression model

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Neuroimmunology and Neuroinflammation 2019年第11期6卷 1-13页

作者： Raquel do Nascimento de Souza Júlia Miccolis Azevedo lopes lívia da rocha natalino monteiro Raiana Andrade Quintanilha Barbosa Gabriela Hollmann Silvana Allodi luis Carlos Reis MagdaAlves de Medeiros Department of Physiological Sciences Institute of Biology and Health SciencesFederal Rural University of Rio de JaneiroSeropedica 23897-000RJBrazil Carlos Chagas Filho Institute of Biophysics Federal University of Rio de JaneiroRio de Janeiro 21941-902RJBrazil.

Aim: The present study aimed to examine whether apipuncture (stimulation of acupuncture points with bee venom)at ST36 and GV3 acupoints promotes neuroprotection and reduces neuroinflammation by modulating M1 and M2 phenotype ***: Wistar rats were treated with bee venom (BV) (0.08 mg/kg) injection at acupoints ST36 and GV3 [BV (ST36 + GV3)-spinal cord injury (SCI)] or BV injection at non-acupoints [BV (NP)-SCI] or no treatment (CTl-SCI)after SCI by compression. The spinal cord mRNA expression of iNOS, Arg-1 and TGF-β was measured by real time PCR and the levels of IBA-1;BCl-2;NeuN e CNPase was measured by western blotting. locomotor performance was measured by Basso, Beattie, and Bresnahan (BBB) and grid-walking ***: Apipuncture treatment was able to (1) ameliorate locomotor performance;(2) reduce inflammatory markers (Cox-2 levels) and activation of microglia and macrophages;(3) reduce the polarization of the M1 phenotype marker (iNOS) and increase M2 (Arg-1 and TGF-β) phenotypic markers;(4) promote neuroprotection by reducing the death of neurons and oligodendrocytes;and (5) increase the expression of the anti-apoptotic factor ***: Apipuncture treatment induces locomotor recovery and neuroprotection after the compression model of spinal cord injury. Further, it reduces neuroinflammation by decreasing M1 polarization and increasing M2 phenotype.

关键词： Acupuncture bee venom spinal cord injury compression microglia macrophage neuroinflammation

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