Publicación Oficial de la Sociedad Ecuatoriana de Neurología, de la Liga Ecuatoriana Contra la Epilepsia y de la Sociedad Iberoamericana de Enfermedad Cerebrovascular

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Influencia del Estrés Crónico y de la Masticación Sobre el Dolor. Influence Of Chronic Stress And Chewing Over Pain.

Introduction: Chronic stress and mastication affect the response to pain; however, there is little knowledge about the relationship between these variables.

Objective: Determine the influence of chronic stress and mastication on the response to pain.

Methods: thirty-two 8-week-old male Balb/c mice were used. The sample was divided into 4 equal groups: Group N: normal mastication without stress; Group NE: Normal chewing + stress, Group D: deficient chewing without stress and Group DE: Poor chewing + stress. The response to the painful stimulus was evaluated through the tail withdrawal assay due to a thermal stimulus.

Results: By comparing the 4 experimental groups to the fourth and the eighth week through the ANOVA test yielded a value of p = 0.982 and p = 0.176; respectively. By applying the ‘t’ student, within each group, in comparison of the variation of the pain response between the fourth and eighth week, the values ​​of p = 0.52; p = 0.17; p = 0.84 and p = 0.069 were obtained for the group N, NE, D and DE respectively.

Conclusion: Chronic stress and mastication do not modify the response to pain in albino Balb/c mice.

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