Involvement of steroids in anti-inflammatory effects of PK11195 in a murine model of pleurisy.

BACKGROUND: Studies on peripheral benzodiazepine receptor function have yielded a diverse list of activities of which the anti-inflammatory effects need to be further examined. AIMS: To evaluate the role of steroids, nitric oxide and adenosine-deaminase in the anti-inflammatory effect of PK11195. ME...

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Detalles Bibliográficos
Autores principales: da Silva, Marcelo Barreto Spillere, Farges, Roseli Coimbra, Fröde, Tânia Silvia
Formato: Texto
Lenguaje:English
Publicado: 2004
Materias:
Research Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1781550/
https://www.ncbi.nlm.nih.gov/pubmed/15203550
http://dx.doi.org/10.1080/09629350410001688486
Descripción
Sumario:BACKGROUND: Studies on peripheral benzodiazepine receptor function have yielded a diverse list of activities of which the anti-inflammatory effects need to be further examined. AIMS: To evaluate the role of steroids, nitric oxide and adenosine-deaminase in the anti-inflammatory effect of PK11195. METHODS: Pleurisy was induced by intrapleural injection of carrageenan in mice pre-treated or not with PK11195. Leukocytes, exudation, adenosine-deaminase (ADA) activity and nitric oxide (NO) level were measured. Steroid involvement was evaluated by pre-treatment with D,L-aminogluthetimide before PK11195. RESULTS: Leukocytes, exudation and NO levels were reduced by PK11195 in the early (4 h) phase. In the late (48 h) phase, PK11195 decreased leukocytes and ADA activity. D,L-aminogluthetimide reversed the effect of PK11195 on exudate (4 h), as well as total and differential leukocytes and NO levels (48 h). CONCLUSIONS: Steroids, NO and ADA are implicated in the anti-inflammatory action of PK11195.

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