scholarly journals Dried Ginger (Zingiber officinalis) Inhibits Inflammation in a Lipopolysaccharide-Induced Mouse Model

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
You Yeon Choi ◽  
Mi Hye Kim ◽  
Jongki Hong ◽  
Sung-Hoon Kim ◽  
Woong Mo Yang
Keyword(s):  
Water Extract ◽  
Clinical Settings ◽  
Protein Factor ◽  
Therapeutic Benefits ◽  
History Of ◽  
Human Use ◽  
Anti Inflammatory ◽  
Oxide Synthase ◽  
Inducible Nitric Oxide ◽  
Inflammatory Effect

Objectives. Ginger rhizomes have a long history of human use, especially with regards to their anti-inflammatory properties. However, the mechanisms by which ginger acts on lipopolysaccharide-(LPS-)induced inflammation have not yet been identified. We investigated the anti-inflammatory effects of driedZingiber officinalis(DZO) on LPS-induced hepatic injury.Methods. ICR mice were given a DZO water extract (100, 1000 mg/kg) orally for three consecutive days. On the third day, they were administered by LPS intraperitoneally. To investigate the anti-inflammatory effects of DZO, histological, cytokine expression, and protein factor analyses were performed.Results. Oral administration of DZO significantly reduced pathological changes in the liver and proinflammatory cytokines including interferon-(IFN-)γand interleukin-(IL-)6 in the serum. In addition, DZO inhibited LPS-induced NF-κB activation by preventing degradation of the IκB-α, as well as the phosphorylation of ERK1/2, SAPK/JNK, and p38 MAPKs. These were associated with a decrease in the expression of inducible nitric oxide synthase (iNOS) and cyclooxyenase-2 (COX-2).Conclusions. Our data provide evidence for the hepatoprotective mechanisms of DZO as an anti-inflammatory effect. Furthermore, use of DZO to treat could provide therapeutic benefits in clinical settings.

scholarly journals Anti-Inflammatory Effect of 1,3,5,7-Tetrahydroxy-8-isoprenylxanthone Isolated from Twigs ofGarcinia esculentaon Stimulated Macrophage

2015 ◽  
Vol 2015 ◽  
pp. 1-11 ◽  
Author(s):  
Dan-Dan Zhang ◽  
Hong Zhang ◽  
Yuan-zhi Lao ◽  
Rong Wu ◽  
Jin-wen Xu ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Inflammatory Diseases ◽  
Inflammatory Activity ◽  
Drug Candidates ◽  
P38mapk Signaling ◽  
Cox 2 ◽  
Anti Inflammatory ◽  
Oxide Synthase ◽  
Inducible Nitric Oxide ◽  
Inflammatory Effect

GarciniaLinn. plants having rich natural xanthones and benzophenones with anti-inflammatory activity attracted a great deal of attention to discover and develop them as potential drug candidates. Through screening targeting nitric oxide accumulation in stimulated macrophage, we found that 1,3,5,7-tetrahydroxy-8-isoprenylxanthone (TIE) had potential anti-inflammatory effect. To understand how TIE elicits its anti-inflammatory activity, we uncovered that it significantly inhibits the production of nitric oxide (NO) and prostaglandin E2 (PGE2) in LPS/IFNγ-stimulated RAW264.7 cells. In further study, we showed that TIE reduced the expression of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2), two key molecules responsible for the production of NO and PGE2 during inflammation progress. Additionally, TIE also suppressed the expression of inflammatory cytokines IL-6, IL-12, and TNF-α. TIE-led suppression in iNOS, COX-2, and cytokines production were probably the consequence of TIE’s capability to block ERK and p38MAPK signaling pathway. Moreover, TIE blocked activation of nuclear factor-kappa B (NF-κB) as well as NF-κB regulation of miR155 expression. Our study suggests that TIE may represent as a potential therapeutic agent for the treatment of inflammatory diseases.

scholarly journals Zerumbone Suppresses Enterotoxigenic Bacteroides fragilis Infection-Induced Colonic Inflammation through Inhibition of NF-κΒ

2019 ◽  
Vol 20 (18) ◽  
pp. 4560 ◽  
Author(s):  
Soonjae Hwang ◽  
Minjeong Jo ◽  
Ju Eun Hong ◽  
Chan Oh Park ◽  
Chang Gun Lee ◽  
...  
Keyword(s):  
Bacteroides Fragilis ◽  
Serum Levels ◽  
Colonic Inflammation ◽  
Colon Cells ◽  
Tnf Α ◽  
Anti Inflammatory ◽  
Oxide Synthase ◽  
Inducible Nitric Oxide ◽  
Inflammatory Effect ◽  
E Cadherin

Enterotoxigenic Bacteroides fragilis (ETBF) is human intestinal commensal bacterium and a potent initiator of colitis through secretion of the metalloprotease Bacteroides fragilis toxin (BFT). BFT induces cleavage of E-cadherin in colon cells, which subsequently leads to NF-κB activation. Zerumbone is a key component of the Zingiber zerumbet (L.) Smith plant and can exhibit anti-bacterial and anti-inflammatory effects. However, whether zerumbone has anti-inflammatory effects in ETBF-induced colitis remains unknown. The aim of this study was to determine the anti-inflammatory effect of orally administered zerumbone in a murine model of ETBF infection. Wild-type C57BL/6 mice were infected with ETBF and orally administered zerumbone (30 or 60 mg/kg) once a day for 7 days. Treatment of ETBF-infected mice with zerumbone prevented weight loss and splenomegaly and reduced colonic inflammation with decreased macrophage infiltration. Zerumbone treatment significantly decreased expression of IL-17A, TNF-α, KC, and inducible nitric oxide synthase (iNOS) in colonic tissues of ETBF-infected mice. In addition, serum levels of KC and nitrite was also diminished. Zerumbone-treated ETBF-infected mice also showed decreased NF-κB signaling in the colon. HT29/C1 colonic epithelial cells treated with zerumbone suppressed BFT-induced NF-κB signaling and IL-8 secretion. However, BFT-mediated E-cadherin cleavage was unaffected. Furthermore, zerumbone did not affect ETBF colonization in mice. In conclusion, zerumbone decreased ETBF-induced colitis through inhibition of NF-κB signaling.

Syk-Mediated Suppression of Inflammatory Responses by Cordyceps bassiana

2017 ◽  
Vol 45 (06) ◽  
pp. 1217-1232 ◽  
Author(s):  
Woo Seok Yang ◽  
Gyeong Sug Nam ◽  
Mi-Yeon Kim ◽  
Jae Youl Cho
Keyword(s):  
Inflammatory Responses ◽  
Fruit Body ◽  
Water Extract ◽  
Signaling Cascades ◽  
Anticancer Activities ◽  
Inflammatory Mechanism ◽  
Anti Inflammatory ◽  
Oxide Synthase ◽  
Inducible Nitric Oxide

The fruit body of artificially cultivated Cordyceps bassiana has been reported to exhibit anti-inflammatory and anticancer activities. Although it has been suggested that the fruit body has neutraceutic and pharmaceutic biomaterial potential, the exact anti-inflammatory molecular mechanism has not been fully elucidated. In this study, we demonstrated the immunopharmacologic activity of Cordyceps bassiana under in vitro conditions and investigated its anti-inflammatory mechanism. Water extract (Cm-WE) of the fruit body of artificially cultivated Cordyceps bassiana without polysaccharide fractions reduced the expression of the proinflammatory genes cyclooxygenase (COX)-2, interleukin (IL)-12, and inducible nitric oxide synthase (iNOS) and promoted the expression of the anti-inflammatory gene IL-10 in lipopolysaccharide (LPS)-treated RAW264.7 cells. In addition, this fraction suppressed proliferation and interferon (IFN)-[Formula: see text] production in splenic T lymphocytes. Cm-WE blocked the activation of nuclear factor (NF)-[Formula: see text]B and activator protein (AP)-1 and their upstream inflammatory signaling cascades, including Syk, MEK, and JNK. Using kinase assays, Syk was identified as the target enzyme most strongly inhibited by Cm-WE. These results strongly suggest that Cm-WE suppresses inflammatory responses by inhibiting Syk kinase activity, with potential implications for novel neutraceutic and pharmaceutic biomaterials.

scholarly journals Anti-Inflammatory Effect of Phytoncide in an Animal Model of Gastrointestinal Inflammation

Molecules ◽  
2021 ◽  
Vol 26 (7) ◽  
pp. 1895
Author(s):  
Azra Memon ◽  
Bae Yong Kim ◽  
Se-eun Kim ◽  
Yuliya Pyao ◽  
Yeong-Geun Lee ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Animal Model ◽  
Gastric Ulcer ◽  
Dextran Sulfate ◽  
Dextran Sulfate Sodium ◽  
Inos Expression ◽  
Gastrointestinal Inflammation ◽  
Anti Inflammatory ◽  
Oxide Synthase ◽  
Inflammatory Effect

Background: Phytoncide is known to have antimicrobial and anti-inflammatory properties. Purpose: This study was carried out to confirm the anti-inflammatory activity of two types of phytoncide extracts from pinecone waste. Methods: We made two types of animal models to evaluate the efficacy, an indomethacin-induced gastroenteritis rat model and a dextran sulfate sodium-induced colitis mouse model. Result: In the gastroenteritis experiment, the expression of induced-nitric oxide synthase (iNOS), a marker for inflammation, decreased in the phytoncide-supplemented groups, and gastric ulcer development was significantly inhibited (p < 0.05). In the colitis experiment, the shortening of the colon length and the iNOS expression were significantly suppressed in the phytoncide-supplemented group (p < 0.05). Conclusions: Through this study, we confirmed that phytoncide can directly inhibit inflammation in digestive organs. Although further research is needed, we conclude that phytoncide has potential anti-inflammatory properties in the digestive tract and can be developed as a functional agent.

Anti-Inflammatory Effect of Lycii radicis in LPS-Stimulated RAW 264.7 Macrophages

2014 ◽  
Vol 42 (04) ◽  
pp. 891-904 ◽  
Author(s):  
Mi Young Song ◽  
Hyo Won Jung ◽  
Seok Yong Kang ◽  
Kyung-Ho Kim ◽  
Yong-Ki Park
Keyword(s):  
Inflammatory Cytokines ◽  
Inflammatory Mediators ◽  
Water Extract ◽  
Inhibitory Effect ◽  
Raw 264.7 Cells ◽  
Raw 264.7 ◽  
Root Bark ◽  
Lycium Barbarum ◽  
Anti Inflammatory ◽  
Inflammatory Effect

The root bark of Lycium barbarum (Lycii radicis cortex, LRC) is used as a cooling agent for fever and night sweats in East Asian traditional medicine. The inhibitory effect of LRC water extract on inflammation is unknown. In this study, the anti-inflammatory effect of LRC was investigated in lipopolysaccharide (LPS)-stimulated mouse macrophage, RAW 264.7 cells. LRC extract significantly decreased the LPS-induced production of inflammatory mediators, nitric oxide (NO), prostaglandin (PG) E2 and pro-inflammatory cytokines, interleukin (IL)-1β and IL-6 in the cells. In addition, LRC extract inhibited the LPS-induced expression of inducible NO synthase (iNOS) and cyclooxygenase (COX)-2 mRNA and protein, and inflammatory cytokines mRNA in the cells. The action mechanism of LRC underlies the blocking of LPS-mediated p38 and Jun N-terminal kinase (JNK), mitogen-activated protein kinases (MAPKs), and the nuclear factor (NF)-κB signaling pathway. These results indicate that LRC extract inhibits the inflammatory response in activated macrophages by down-regulating the transcription levels of inflammatory mediators and blocking the MAPKs and NF-κB pathway.

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