Foeniculum vulgare Mill. Protects against Lipopolysaccharide-induced Acute Lung Injury in Mice through ERK-dependent NF-kB Activation
- Authors
- Lee, Hui Su; Kang, Purum; Kim, Ka Young; Seol, Geun Hee
- Issue Date
- Mar-2015
- Publisher
- KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY
- Keywords
- ERK; Foeniculum vulgare Mill.; LPS; TNF- alpha
- Citation
- KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY, v.19, no.2, pp.183 - 189
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY
- Volume
- 19
- Number
- 2
- Start Page
- 183
- End Page
- 189
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/94265
- DOI
- 10.4196/kjpp.2015.19.2.183
- ISSN
- 1226-4512
- Abstract
- Foeniculum vulgare Mill. (fennel) is used to flavor food, in cosmetics, as an antioxidant, and to treat microbial, diabetic and common inflammation. No study to date, however, has assessed the anti-inflammatory effects of fennel in experimental models of inflammation. The aims of this study were to investigate the anti-inflammatory effects of fennel in model of lipopolysaccharide (LPS)-induced acute lung injury. Mice were randomly assigned to seven groups (n=7 similar to 10). In five groups, the mice were intraperitoneally injected with 1% Tween 80-saline (vehicle), fennel (125, 250, 500 mu 1/kg), or dexamethasone (1 mg/kg), followed 1 h later by intratracheal instillation of LPS (1.5 mg/kg). In two groups, the mice were intraperitoneally injected with vehicle or fennel (250 mu 1/kg), followed 1 h later by intratracheal instillation of sterile saline. Mice were sacrificed 4 h later, and bronchoalveolar lavage fluid (BALF) and lung tissues were obtained. Fennel significantly and dose-dependently reduced LDH activity and immune cell numbers in LPS treated mice. In addition fennel effectively suppressed the LPS-induced increases in the production of the inflammatory cytokines interleukin-6 and tumor necrosis factor-alpha, with 500 mu 1/kg fennel showing maximal reduction. Fennel also significantly and dose-dependently reduced the activity of the proinflammatory mediator matrix metalloproteinase 9 and the immune modulator nitric oxide (NO). Assessments of the involvement of the MAPK signaling pathway showed that fennel significantly decreased the LPS-induced phosphorylation of ERK. Fennel effectively blocked the inflammatory processes induced by LPS, by regulating pro-inflammatory cytokine production, transcription factors, and NO.
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