PMID- 25687543 OWN - NLM STAT- MEDLINE DCOM- 20151102 LR - 20220316 IS - 1872-6623 (Electronic) IS - 0304-3959 (Linking) VI - 156 IP - 3 DP - 2015 Mar TI - Exercise therapy normalizes BDNF upregulation and glial hyperactivity in a mouse model of neuropathic pain. PG - 504-513 LID - 10.1097/01.j.pain.0000460339.23976.12 [doi] AB - Treatment of neuropathic pain is a clinical challenge likely because of the time-dependent changes in many neurotransmitter systems, growth factors, ionic channels, membrane receptors, transcription factors, and recruitment of different cell types. Conversely, an increasing number of reports have shown the ability of extended and regular physical exercise in alleviating neuropathic pain throughout a wide range of mechanisms. In this study, we investigate the effect of swim exercise on molecules associated with initiation and maintenance of nerve injury-induced neuropathic pain. BALB/c mice were submitted to partial ligation of the sciatic nerve followed by a 5-week aerobic exercise program. Physical training reversed mechanical hypersensitivity, which lasted for an additional 4 weeks after exercise interruption. Swim exercise normalized nerve injury-induced nerve growth factor, and brain-derived neurotrophic factor (BDNF) enhanced expression in the dorsal root ganglion, but had no effect on the glial-derived neurotrophic factor. However, only BDNF remained at low levels after exercise interruption. In addition, exercise training significantly reduced the phosphorylation status of PLCgamma-1, but not CREB, in the spinal cord dorsal horn in response to nerve injury. Finally, prolonged swim exercise reversed astrocyte and microglia hyperactivity in the dorsal horn after nerve lesion, which remained normalized after training cessation. Together, these results demonstrate that exercise therapy induces long-lasting analgesia through various mechanisms associated with the onset and advanced stages of neuropathy. Moreover, the data support further studies to clarify whether appropriate exercise intensity, volume, and duration can also cause long-lasting pain relief in patients with neuropathic pain. FAU - Almeida, Cayo AU - Almeida C AD - Laboratory of Pain Neurobiology, Department of Physiology, Ribeirao Preto School of Medicine, University of Sao Paulo, Brazil Department of Biochemistry and Immunology, Ribeirao Preto School of Medicine, University of Sao Paulo, Brazil Federal Institute of Education, Science and Technology of Goias, Brazil School of Physical Education and Sport of Ribeirao Preto, University of Sao Paulo, Brazil. FAU - DeMaman, Aline AU - DeMaman A FAU - Kusuda, Ricardo AU - Kusuda R FAU - Cadetti, Flaviane AU - Cadetti F FAU - Ravanelli, Maria Ida AU - Ravanelli MI FAU - Queiroz, Andre L AU - Queiroz AL FAU - Sousa, Thais A AU - Sousa TA FAU - Zanon, Sonia AU - Zanon S FAU - Silveira, Leonardo R AU - Silveira LR FAU - Lucas, Guilherme AU - Lucas G LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Pain JT - Pain JID - 7508686 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Glial Fibrillary Acidic Protein) RN - EC 2.3.1.48 (CREB-Binding Protein) RN - EC 2.3.3.1 (Citrate (si)-Synthase) RN - EC 3.1.4.3 (Phospholipase C gamma) SB - IM MH - Adaptation, Physiological MH - Animals MH - Brain-Derived Neurotrophic Factor/*metabolism MH - CREB-Binding Protein/metabolism MH - Citrate (si)-Synthase MH - Disease Models, Animal MH - Exercise Therapy/*methods MH - Glial Fibrillary Acidic Protein/metabolism MH - Heart/physiopathology MH - Hyperalgesia/etiology MH - Male MH - Mice MH - Mice, Inbred BALB C MH - Muscle, Skeletal/physiopathology MH - Neuralgia/complications/pathology/*rehabilitation MH - Neuroglia/*metabolism/pathology MH - Pain Measurement MH - Pain Threshold/physiology MH - Phospholipase C gamma/metabolism MH - Phosphorylation MH - Time Factors MH - Up-Regulation/*physiology EDAT- 2015/02/18 06:00 MHDA- 2015/11/03 06:00 CRDT- 2015/02/18 06:00 PHST- 2015/02/18 06:00 [entrez] PHST- 2015/02/18 06:00 [pubmed] PHST- 2015/11/03 06:00 [medline] AID - 00006396-201503000-00019 [pii] AID - 10.1097/01.j.pain.0000460339.23976.12 [doi] PST - ppublish SO - Pain. 2015 Mar;156(3):504-513. doi: 10.1097/01.j.pain.0000460339.23976.12.