The anti-inflammatory and anti-nociceptive effects of Korean black ginseng

Yuan Yee Lee, Evelyn Saba, Muhammad Irfan, Minki Kim, Jireh Yi Le Chan, Byeong Seon Jeon, Sung Keun Choi, Man Hee Rhee

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

Background: Different processing conditions alter the ginseng bioactive compounds, promoting or reducing its anti-inflammatory effects. We compared black ginseng (BG) – that have been steamed 5 times – with red ginseng (RG). Hypothesis/ Purpose: To compare the anti-inflammatory activities and the anti-nociceptive properties of RG and BG. Methods: Nitric Oxide (NO) and 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazoliumbromide (MTT) assay, quantitative Reverse Transcriptase-Polymerase Chain Reaction (qRT-PCR), western blot, xylene-induced ear edema, carrageenan-induced paw edema Results: The ginsenoside contents were confirmed using high-performance liquid chromatography (HPLC) and has been altered through increased processing. The highest concentration of these extracts inhibited NO production to near-basal levels in lipopolysaccharide (LPS)-stimulated RAW 264.7 without exhibiting cytotoxicity. Pro-inflammatory cytokine expression at the mRNA level was investigated using qRT-PCR. Comparatively, BG exhibited better inhibition of pro-inflammatory mediators, iNOS and COX-2 and pro-inflammatory cytokines, IL-1β IL-6 and TNF-α. Protein expression was determined using western blot analysis and BG exhibited stronger inhibition. Xylene-induced ear edema model in mice and carrageenan-induced paw edema in rats were carried out and tested with the effects of ginseng as well as dexamethasone and indomethacin - commonly used drugs. BG is a more potent anti-inflammatory agent, possesses anti-nociceptive properties, and has a strong potency comparable to the NSAIDs. Conclusion: BG has more potent anti-inflammatory and anti-nociceptive effects due to the change in ginsenoside component with increased processing.

Original languageEnglish
Pages (from-to)169-181
Number of pages13
JournalPhytomedicine
Volume54
DOIs
StatePublished - 15 Feb 2019

Keywords

  • Abbreviations: TLR, Toll-like receptor
  • Anti-inflammation
  • Anti-nociceptive
  • Black ginseng
  • COX-2, Cyclooxygenase-2
  • Carrageenan-induced paw edema
  • ERK, extracellular-signal-regulated kinases
  • FBS, Fetal bovine serum
  • I , Maximal inhibition
  • IKK, inhibitor of kappa B kinase
  • IL, Interleukin
  • IκB/α inhibitor kappa B-alpha
  • JNK, c-Jun N-terminal kinases
  • LPS, Lipopolysaccharides
  • MAPK, mitogen-activated protein kinases
  • NF-κB, Nuclear factor Kappa-B
  • NO, Nitric oxide
  • Panax ginseng
  • TLR, Toll-like receptors
  • TNF-α Tumor necrotic factor alpha
  • TRPV-1, transient receptor potential vanilloid 1
  • Xylene-induced ear edema
  • iNOS, inducible NO synthase

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