Drug Res (Stuttg) 2019; 69(12): 688-694
DOI: 10.1055/a-0983-1402
Original Article
© Georg Thieme Verlag KG Stuttgart · New York

Nitric Oxide and Opioids Involvement in Isobolographic Nsaids Antinociception

Hugo F. Miranda
1   Neuroscience Department, Faculty of Medicine, Universidad de Chile, Santiago, Chile
,
Viviana Noriega
2   Cardiovascular Department, Clinical Hospital, Universidad de Chile, Santiago, Chile
,
Fernando Sierralta
3   Pharmacology Program, ICBM, Faculty of Medicine, Universidad de Chile, Santiago, Chile
,
Paula Poblete
1   Neuroscience Department, Faculty of Medicine, Universidad de Chile, Santiago, Chile
,
Nicolás Aranda
1   Neuroscience Department, Faculty of Medicine, Universidad de Chile, Santiago, Chile
,
Juan Carlos Prieto
2   Cardiovascular Department, Clinical Hospital, Universidad de Chile, Santiago, Chile
3   Pharmacology Program, ICBM, Faculty of Medicine, Universidad de Chile, Santiago, Chile
› Author Affiliations
Further Information

Publication History

received 07 June 2019

accepted 23 July 2019

Publication Date:
13 August 2019 (online)

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Abstract

Different NSAIDs are used as antinociceptive in various analgesic assays, among which should be mentioned: ibuprofen, ketorolac , ketoprofen, meloxicam , paracetamol and others. It has been shown that NSAIDs possess antinociceptive activity by blocking cyclooxygenase enzymes (COXs). The present study was designed to evaluate the possible involvement of the nitridergic pathway due to L-NAME and the opioidergic route by NTX in the antinoception induced by NSAIDs using a murine pain model the tail flick test in an automatic tail flick algesiometer. The antinociception was evaluated by means of isobolographic analysis. The interaction between the combination of NSAIDs, via i.p., on basis of their ED25, demonstrated that the coadministration of the drugs were synergistic with the exception of the lack of effect in combination of meloxicam with ibuprofen and with ketorolac, since the result was additive. These data validate that the NSAIDs administered alone or in combinations produce antinociception in which other mechanisms of action must be added to the simple inhibition of COXs. In addition, the pretreatment of the mice with L-NAME and NTX does not change previous isobolographic parameters of the mixture of NSAIDs.