Mechanical hypernociception in experimental autoimmune encephalomyelitis
Copyright policy )Mechanical hypernociception in experimental autoimmune encephalomyelitis
BACKGROUND: Pain is an important clinical manifestation in multiple sclerosis (MS) patients, though it has been neglected in clinical and experimental researches. OBJECTIVE: To investigate the nociceptive response in MOG35-55 experimental autoimmune encephalomyelitis (EAE)-induced mice. METHOD: EAE was induced in 8 to 10 week old C57BL/6 female mice with an emulsion of MOG35-55, Complete Freund Adjuvant, Mycobacterium tuberculosis H37 RA and pertussis toxin. Nociception was evaluated by the von Frey filaments method. A clinical scale ranging from 0 to 15 was used to assess motor impairment. RESULTS: Clinical evidence of disease started at day 10 and peaked at day 14 after immunization. Thereafter, there was no worsening of symptoms until day 26. The EAE-induced mice presented reduced pressure threshold at days 7th and 10th after immunization and before the onset of clinical motor signs. CONCLUSION : The hypernociception found validates MOG35-55 EAE as a model for the study of pain in multiple sclerosis.
Encephalomyelitis, Autoimmune, Experimental, Multiple Sclerosis, experimental autoimmune encephalomyelitis, hipernocicepção mecânica, Nerve Tissue Proteins, multiple sclerosis, mechanical hypernociception, encefalomielite autoimune experimental, Mice, esclerose múltipla, Animals, hyperalgesia, Glycoproteins, Analysis of Variance, Nociceptors, Peptide Fragments, Mice, Inbred C57BL, Myelin-Associated Glycoprotein, Female, Myelin-Oligodendrocyte Glycoprotein, hiperalgesia, Myelin Proteins
Encephalomyelitis, Autoimmune, Experimental, Multiple Sclerosis, experimental autoimmune encephalomyelitis, hipernocicepção mecânica, Nerve Tissue Proteins, multiple sclerosis, mechanical hypernociception, encefalomielite autoimune experimental, Mice, esclerose múltipla, Animals, hyperalgesia, Glycoproteins, Analysis of Variance, Nociceptors, Peptide Fragments, Mice, Inbred C57BL, Myelin-Associated Glycoprotein, Female, Myelin-Oligodendrocyte Glycoprotein, hiperalgesia, Myelin Proteins
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