RESUMEN
AIM@#To investigate the cytotoxicity, anti-inflammatory activity, and action mechanism of root bark extracts of Acanthopanax henryi.@*METHOD@#The hot methanol extract of the root bark of A. henryi was subjected to XAD-4 column chromatography eluting with a gradient of methanol in water. The cytotoxicity and anti-inflammatory effects of the MeOH fractions were evaluated on the inhibition on lipopolysaccharide (LPS)-induced nitric oxide, prostaglandin E2, interleukin-1β, and interleukin-6 production in RAW 264.7 macrophages.@*RESULTS@#The 80% MeOH fraction was a better inhibitor of LPS-induced NO, PGE2, IL-1β, and IL-6 production, and expression of inducible nitric oxide synthase (iNOS) at the protein levels in a concentration-dependent manner.@*CONCLUSION@#The 80% MeOH fraction of A. henryi root bark has significant anti-inflammatory activity. This provides a pharmacological basis for clinical application for the treatment of inflammation.
Asunto(s)
Animales , Ratones , Antiinflamatorios , Farmacología , Usos Terapéuticos , Dinoprostona , Metabolismo , Relación Dosis-Respuesta a Droga , Eleutherococcus , Inflamación , Quimioterapia , Metabolismo , Interleucina-1beta , Metabolismo , Interleucina-6 , Metabolismo , Lipopolisacáridos , Macrófagos , Metabolismo , Óxido Nítrico , Metabolismo , Óxido Nítrico Sintasa de Tipo II , Metabolismo , Fitoterapia , Corteza de la Planta , Extractos Vegetales , Farmacología , Usos Terapéuticos , Raíces de PlantasRESUMEN
OBJECTIVE: To study on effect of concentration of catalpol and 5-hydroxy methyl-2-furaldehyde (5-HMF) from Rehmanniae Radix at various processing. METHOD: The Rehmanniae Radix was dried and prepared from the steaming process with 10% ethanol, 50% ethanol at 90 degrees C and 100 degrees C each other. And the changes of catalpol and 5-HMF was determinated. The extraction of 5-HMF and catalpol was sonicated in 30% methanol for 2 h. The analysis of 5-HMF and catalpol was conducted by HPLC with reversed-phase C-18 column and detected under UV 284 nm, 204 nm. Elution was carried out at 1.0 mL min(-1) with 3% acetonitrile. RESULT: From this analysis, we found out that the content of catalpol was decreased with the number of processing times, and content of 5-HMF was increased with the number of processing times at various processing. The temperature and concentration of ethanol can effect on content of catalpol and 5-HMF at processing. The Cooked Rehmanniae Radix processed at 100 degrees C, 10% ethanol is best. And the content of 5-HMF processed for more than 7 times was accorded with standard of Korea phamcopoetia. CONCLUSION: Analyze the effect of concentration of catalpol and 5-HMF from Rehmanniae Radix at various processing, and provide the foundation for further study.