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Anti-inflammatory and anti-nociceptive properties of Prunus padus.
MedLine Citation:
PMID:  23010365     Owner:  NLM     Status:  Publisher    
ETHNOPHARMACOLOGICAL RELEVANCE: Prunus padus Linne has been widely used as a traditional medicine, with beneficial effects in numerous diseases, including stroke, neuralgia and hepatitis. In this study, we demonstrated anti-inflammatory and anti-nociceptive activities of the methylene chloride fraction of Prunus padus (MPP). MATERIALS AND METHODS: In vitro studies, the anti-inflammatory effects of MPP were examined using IFN-γ/LPS-activated murine peritoneal macrophage model. To confirm the anti-inflammatory effects of MPP in vivo, trypsin-induced paw edema test was also conducted. The anti-nociceptive activites of MPP were measured using various experimental pain models including thermal nociception methods such as the tail immersion test and the hot plate test as well as chemical nociception methods like acetic acid-induced writhing test and formalin test. To determine whether analgesic activity of MPP is connected with the opioid receptor, we carried out combination test with naloxone, a nonselective opioid receptor antagonist. RESULTS: In the current study, MPP showed potent inhibitory effect on IFN-γ/LPS-induced NO production. MPP also suppressed not only iNOS enzyme activity but iNOS expression. Moreover, MPP inhibited COX-2 expression dose dependantly. IFN-γ/LPS stimulation induced the translocation of NF-κB to nucleus but it was attenuated in the presence of MPP. In vivo study revealed that MPP could reduce paw volume after subplantar injection of trypsin. In addition, MPP showed potent analgesic activities both thermal and chemical nociception compared to tramadol and indomethacin. Furthermore, pre-treatment of naloxone slightly suppress the analgesic activity of MPP indicating MPP acts as a partial opioid receptor agonist. CONCLUSIONS: In the present study, MPP showed potent anti-inflammatory properties through not only by suppressing various inflammatory mediators in vitro, but reducing the inflammatory edema in vivo. MPP also exhibited strong anti-nociceptive activities via both central and peripheral mechanism by acting as a partial opioid agonist. Based on these results we suggest that P. padus has the potential to provide a therapeutic approach to inflammation-mediated chronic diseases as an effective anti-inflammatory agent and painkiller.
Jae Hyuk Choi; Dong Seok Cha; Hoon Jeon
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-9-22
Journal Detail:
Title:  Journal of ethnopharmacology     Volume:  -     ISSN:  1872-7573     ISO Abbreviation:  J Ethnopharmacol     Publication Date:  2012 Sep 
Date Detail:
Created Date:  2012-9-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7903310     Medline TA:  J Ethnopharmacol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012. Published by Elsevier Ireland Ltd.
College of Pharmacy, Woosuk University, Jeonbuk 565-701, Korea.
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