Abstract Title:

Anti-inflammatory effects of Brazilian ginseng (Pfaffia paniculata) on TNBS-induced intestinal inflammation: Experimental evidence.

Abstract Source:

Int Immunopharmacol. 2015 Jul 17 ;28(1):459-469. Epub 2015 Jul 17. PMID: 26202807

Abstract Author(s):

C A R A Costa, A Tanimoto, A E V Quaglio, L D Almeida, J A Severi, L C Di Stasi

Article Affiliation:

C A R A Costa


Inflammatory bowel disease (IBD) is a chronic, relapsing, idiopathic inflammation of the gastrointestinal tract. Clinical studies suggest that the initiation of IBD is multifactorial, involving genetics, the immune system and environmental factors, such as diet, drugs and stress. Pfaffia paniculata is an adaptogenic medicinal plant used in Brazilian folk medicine as an"anti-stress"agent. Thus, we hypothesised that the P. paniculata enhances the response of animals subjected to colonic inflammation. Our aim was to investigate the intestinal anti-inflammatory activity of P. paniculata in rats before or after induction of intestinal inflammation using trinitrobenzenesulfonic acid (TNBS). The animals were divided into groups that received the vehicle, prednisolone or P. paniculata extract daily starting 14days before or 7days after TNBS induction. At the end of the procedure, the animals were killed and their colons were assessed for the macroscopic damage score (MDS), extent of the lesion (EL) and weight/length ratio, myeloperoxidase (MPO) activity and glutathione (GSH), cytokines and C-reactive protein (CRP) levels. Histological evaluation and ultrastructural analysis of the colonic samples were performed. Treatment with the 200mg/kg dose on the curative schedule was able to reduce the MDS and the EL. In addition, MPO activity was reduced, GSH levels were maintained, and the levels of pro-inflammatory cytokines and CRP were decreased. In conclusion, the protective effect of P. paniculata was related to reduced oxidative stress and CRP colonic levels, and due to immunomodulatory activity as evidenced by reduced levels of IL-1β, INF-γ, TNF-α and IL-6.

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