DOI: 10.5935/2595-0118.20190048
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Abstract: BACKGROUND AND OBJECTIVES: To analyze the scientific evidence on the changes in plasma levels of interleukins, nitric oxide, extracellular matrix metalloproteinases, bradykinins, and cortisol in patients with chronic pain. CONTENTS: The studies were identified by searching the following electronic databases: Pubmed/Medline, Scopus, LILACS, and Web of Science, published from June of 2016 to December of 2016. The selected articles were presented in a flow chart based on their identification, selection, eligibili…

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