PubMed Journals Articles About "Anti Inflammatory Activity Dehydroandrographolide TLR4 Signaling Pathway Inhibition" RSS

11:47 EDT 24th March 2019 | BioPortfolio

Anti Inflammatory Activity Dehydroandrographolide TLR4 Signaling Pathway Inhibition PubMed articles on BioPortfolio. Our PubMed references draw on over 21 million records from the medical literature. Here you can see the latest Anti Inflammatory Activity Dehydroandrographolide TLR4 Signaling Pathway Inhibition articles that have been published worldwide.

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Showing "Anti Inflammatory Activity Dehydroandrographolide TLR4 Signaling Pathway Inhibition" PubMed Articles 1–25 of 36,000+

Anti-Inflammatory Activity of Dehydroandrographolide by TLR4/NF-κB Signaling Pathway Inhibition in Bile Duct-Ligated Mice.

Clinically, biliary obstruction is often accompanied by progressive inflammation. Dehydroandrographolide (DA) possesses anti-inflammatory properties. However, the anti-inflammatory activities of DA in cholestatic liver injury remain unclear.

Anti-inflammatory effects of Ang-(1-7) via TLR4-mediated inhibition of the JNK/FoxO1 pathway in lipopolysaccharide-stimulated RAW264.7 cells.

Targeting inflammation is considered a challenging pharmacological strategy to prevent or delay the development of inflammatory diseases, such as severe asthma, Crohn's disease, and rheumatoid arthritis. The angiotensin-(1-7) -Mas axis ((Ang-(1-7)-Mas axis) was confirmed to antagonize the effects of the Angiotensin II-AT receptor axis and the latter is reported to regulate cardiovascular and renal function, as well as contribute to the inflammatory process. In this paper, we aim to explore the crucial effec...

Mechanism of the anti-inflammatory activity by a polysaccharide from Dictyophora indusiata in lipopolysaccharide-stimulated macrophages.

Dictyophora indusiata polysaccharides (DIP) shows antioxidant, anti-tumor and immunostimulatory activities. However, the anti-inflammatory roles of DIP in NLRP3 inflammasome in LPS-stimulated macrophages are still not well defined. In this study, we investigated the mechanism of the anti-inflammatory activity of DIP in LPS-primed RAW264.7 macrophages. Our data showed that DIP inhibited NF-κB signal pathway via modulating TLR4 expression, phosphorylation of IκBα and nuclear translocation of NF-κB-p65 sub...

Ulinastatin mediates suppression of regulatory T cells through TLR4/NF-κB signaling pathway in murine sepsis.

CD4CD25 regulatory T cells (Tregs) play an essential role in the suppression of the immune response and prevention of autoimmune reactions. The activation of TLR4, which provides a critical link between the innate and adaptive immune systems, has been implicated in regulating the function of Tregs. Ulinastatin (UTI) is a broad-spectrum protease inhibitor that has been shown to modulate innate immunity and pro-inflammatory signaling in sepsis. In addition, there are reports that UTI may modulate the function...

Dehydroandrographolide inhibits IgE-mediated anaphylactic reactions via calcium signaling pathway.

The classical mast cells degranulation pathway is mediated by FcεRI aggregation and varies in strength among subjects. Dehydroandrographolide (DA) is one of principal components of Andrographis paniculata (Burm.f.) Nees (family: Acanthaceae) and considered the main contributors of its therapeutic properties, such as anti-tumor. In this study, inhibition of IgE-mediated anaphylactic reactions and anti-inflammatory potential of DA were investigated. The anti-anaphylactic activity of DA was investigated using...

Dihydrotanshinone exhibits an anti-inflammatory effect in vitro and in vivo through blocking TLR4 dimerization.

Dihydrotanshinone (DHT), one of the major ingredients of Salvia miltiorrhiza Bunge (Danshen), displays many bioactivities. However, the activity and underlying mechanism of DHT in anti-inflammation have not yet been elucidated. In this study, we investigated the anti-inflammatory activity and molecular mechanism of action of DHT both in vitro and in vivo. Our data showed that DHT significantly decreased the release of inflammatory cytokines tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), and IL-1β...

Screening of herbal extracts for TLR2- and TLR4-dependent anti-inflammatory effects.

Herbal extracts represent an ample source of natural compounds, with potential to be used in improving human health. There is a growing interest in using natural extracts as possible new treatment strategies for inflammatory diseases. We therefore aimed at identifying herbal extracts that affect inflammatory signaling pathways through toll-like receptors (TLRs), TLR2 and TLR4. Ninety-nine ethanolic extracts were screened in THP-1 monocytes and HeLa-TLR4 transfected reporter cells for their effects on stimul...

Umbelliferone Alleviates Lipopolysaccharide-Induced Inflammatory Responses in Acute Lung Injury by Down-Regulating TLR4/MyD88/NF-κB Signaling.

This study investigated the protective effect and underlying mechanism of action of umbelliferone (Umb) against lipopolysaccharide (LPS)-induced acute lung injury (ALI). An intragastric Umb injection prior to the administration of LPS dramatically decreased the wet/dry lung weight ratio, attenuated inflammatory cell infiltration in lung tissue, and reduced the LPS-induced production of inflammatory cytokines, including monocyte chemotactic protein-1(MCP-1), interleukin (IL)-6, tumor necrosis factor-α (TNF-...

The Effect and Mechanism of KLF7 in the TLR4/NF-B/IL-6 Inflammatory Signal Pathway of Adipocytes.

To investigate the role and possible molecular mechanism of Krüppel-like factor 7 (KLF7) in the TLR4/NF-B/IL-6 inflammatory signaling pathway activated by free fatty acids (FFA).

Anti-inflammatory activity of the decoction of Forsythia suspensa (Thunb.) Vahl is related to Nrf2 and A20.

The water extract of Forsythiae Fructus (WFF) is an herbal remedy that is prescribed to treat various inflammatory diseases in traditional Chinese medicine. Although the anti-inflammatory activity of WFF has been reported, the underlying mechanisms for the activity remain unclear. Here, we examined whether the anti-inflammatory activity of WFF is associated with Nrf2, an anti-inflammatory factor, and A20, an ubiquitin-regulator protein that inhibits signaling cascades of endotoxin or cytokines.

Anti-inflammatory effects of isoalantolactone on LPS-stimulated BV2 microglia cells through activating GSK-3β-Nrf2 signaling pathway.

Isoalantolactone (ISO) is a sesquiterpene lactone isolated from Inula helenium that has been known to exhibit anti-inflammatory effect. Nevertheless, the effects of ISO on neuroinflammation have not been explored. BV2 microglia cells were pretreated with ISO and then stimulated with LPS. ISO attenuated the production of inflammatory mediators, such as TNF-α, IL-1β, NO, and PGE in LPS-stimulated BV2 microglia cells. ISO suppressed the LPS-induced NF-κB activation in a concentration-dependent manner. The e...

Analgesic effects of TLR4/NF-κB signaling pathway inhibition on chronic neuropathic pain in rats following chronic constriction injury of the sciatic nerve.

Chronic neuropathic pain (CNP) is attributed to a lesion or disease of the somatosensory system, may be derived from the peripheral and central system. Recent study revealed that spinal cord stimulation attenuated CNP by inhibiting TLR4/NF-κB signaling pathway. The present study focuses on the potential analgesic effects of TLR4/NF-κB signaling pathway on CNP in a rat model of chronic constriction injury (CCI).

Melatonin ameliorates TNBS-induced colitis in rats through the melatonin receptors: involvement of TLR4/MyD88/NF-κB signalling pathway.

The aim of the present study is to investigate the anti-inflammatory effect of melatonin in trinitrobenzene sulfonic acid (TNBS)-induced rat colitis through the inhibition of Toll-like receptor 4 (TLR4)/nuclear factor kappa B (NF-κB) signalling pathway and activation of melatonin receptor.

Protective effect of sophocarpine on lipopolysaccharide-induced acute lung injury in mice.

Sophocarpine (SOP) is a tetracyclic quinolizidine alkaloid isolated from Sophora alopecuroides L. A number of studies have shown that SOP has anti-inflammatory actions and protects against a variety of tissue and organ injuries. The purpose of this study was to investigate the protective effects of SOP on LPS-induced acute lung injury (ALI) in mice. Lung histological alterations, edema, and MPO activity were measured in this study. Furthermore, the production of inflammatory cytokines and the expression of ...

Artemisinin Ameliorates Osteoarthritis by Inhibiting the Wnt/β-Catenin Signaling Pathway.

Current drug therapies for osteoarthritis (OA) are not practical because of the cytotoxicity and severe side-effects associated with most of them. Artemisinin (ART), an antimalarial agent, is well known for its safety and selectivity to kill injured cells. Based on its anti-inflammatory activity and role in the inhibition of OA-associated Wnt/β-catenin signaling pathway, which is crucial in the pathogenesis of OA, we hypothesized that ART might have an effect on OA.

Lipoxin A4 ameliorates renal ischemia reperfusion-induced acute lung injury in rats.

Lipoxin A4 (LA4), a bioactive product of arachidonic acid, has been shown to exert strong anti-inflammatory activity. By contrast, the anti-inflammatory action of LA4 in a renal ischemia-reperfusion (RIR)-mediated acute lung inflammation (ALI) model and the potential pathogenesis of the condition are still unclear. The aim of the current research was to investigate the effect of LA4 on RIR-induced ALI. The rat ALI model was induced by RIR. LA4 was injected via the tail vein immediately after RIR. The result...

Therapeutic effect of Brucea javanica oil emulsion on experimental Crohn's disease in rats: Involvement of TLR4/ NF-κB signaling pathway.

Brucea javanica is an important Chinese folk medicine traditionally used for the treatment of dysentery (also known as inflammatory bowel diseases). Brucea javanica oil emulsion (BJOE), the most common preparation of Brucea javanica, has a variety of pharmacological activities. In this follow-up investigation, we endeavored to illuminate the potential benefit of BJOE on 2, 4, 6-trinitrobenzenesulfonic acid (TNBS)-induced Crohn's disease (CD) in rats and decipher the mechanism of action. The result illustrat...

Influence of the TLR4-mediated p38MAPK signaling pathway on chronic intermittent hypoxic-induced rat's oxidative stress and inflammatory cytokines in rats.

To investigate the influence of the TOLL-like receptor 4 (TLR4)-mediated p38MAPK signaling pathway on chronic intermittent hypoxic (CIH)-induced oxidative stress and inflammatory cytokines in rats.

Scaffolding role of TcpB in disrupting TLR4-Mal interactions: Three to tango.

Toll/interleukin-1 like receptors (TLRs) are membrane-spanning proteins crucially involved in innate immunity. On activation, the cytoplasmic toll/interleukin-1 receptor (TIR) domains of these receptors undergo homo- or heterodimerization. Brucella sp. are bacterial pathogens that affect the immune system by suppressing the TLR signaling pathway. They enact this by encoding a TIR domain-containing protein, TcpB, which suppresses NF-κB activation and proinflammatory cytokine secretion mediated by TLR4 recep...

Cis-9, trans-11-CLA Exerts an Anti-inflammatory Effect in Bovine Mammary Epithelial Cells after E.coli Stimulation through NF-κB Signaling Pathway.

The anti-inflammatory effects of cis-9, trans-11-conjugated linoleic acid (cis-9, trans-11-CLA) in diverse cells have been demonstrated in recent studies. The present study was conducted to observe the anti-inflammatory effects and involved mechanisms of CLA in bovine mammary epithelial cells (BMECs) exposed to E. coli. According to the gene expression of IL-6, to optimize the treatment period and dose of CLA, 50 μM and 100 μM CLA were chosen to pretreat the cells for a period of 48h. BMECs were exposed t...

Protective Effect of 2-Hydroxymethyl Anthraquinone from Hedyotis diffusa Willd in Lipopolysaccharide-Induced Acute Lung Injury Mediated by TLR4-NF-κB Pathway.

Chronic inflammation and oxidant/antioxidant imbalance play a prominent role in inflammatory lung diseases. 2-Hydroxymethyl anthraquinone (HMA), an anthraquinone derivative found in Hedyotis diffusa Willd, has been reported to have broad-spectrum anti-inflammatory effects; the present study was conducted to investigate the protective effect of HMA in LPS-induced acute lung injury (ALI) and to explore its potential molecular mechanisms. The results showed that HMA remarkably attenuated LPS-induced pulmonary ...

Total flavones of fermentation broth by co-culture of Coprinus comatus and Morchella esculenta induces an anti-inflammatory effect on LPS-stimulated RAW264.7 macrophages cells via the MAPK signaling pathway.

The inflammatory cellular model of RAW264.7 cells induced by lipopolysaccharide (LPS) has always been used to investigate the effect of anti-inflammatory agents in vitro. In the present study, the anti-inflammatory activity of total flavones extracted from the fermentation broth of the co-culture of Coprinus comatus and Morchella esculenta (MCF-F), and its potential molecular mechanism in LPS-challenged RAW264.7 macrophage cells were investigated. The data revealed that MCF-F exhibited anti-inflammatory a...

Ethyl pyruvate protects against Salmonella intestinal infection in mice through down-regulation of pro-inflammatory factors and inhibition of TLR4/MAPK pathway.

Salmonella typhimurium is one of the main causes of intestinal diseases, affecting the health of humans and livestock. Ethyl pyruvate (EP), which is ordinarily an edible spice, has been indicated to exert anti-inflammatory effects and preserve intestinal barrier function. In this study, intestinal immune function and signaling pathways activated by EP were investigated in vivo in S. typhimurium-challenged BALB/c mice and in vitro in RAW264.7 cells. EP improved body weight loss and the organ index of the liv...

Harmine mitigates LPS-induced acute kidney injury through inhibition of the TLR4-NF-κB/NLRP3 inflammasome signalling pathway in mice.

Acute kidney injury is a common clinical condition associated with increased morbidity and mortality. It is essential to find effective drugs with low side effects in the treatment of acute kidney injury. Harmine is one of the major active components of Peganum harmala L. Harmine possesses various pharmacological activities, including anti-inflammatory activity. Nevertheless, the protective effect of harmine in acute kidney injury induced by lipopolysaccharide (LPS) in mice is unknown. Therefore, we investi...

Size-dependent anti-inflammatory activity of a peptide-gold nanoparticle hybrid in vitro and in a mouse model of acute lung injury.

Acute lung injury (ALI)/acute respiratory distress syndrome (ARDS) is a life-threatening condition of critically-ill patients, characterized by overwhelming inflammatory responses in the lung. Multiple lines of evidence suggest that the excessive activation of Toll-like receptor 4 (TLR4) plays an important role in this detrimental lung inflammation. Recently, we developed a unique class of peptide-gold nanoparticle (GNP) hybrids that act as potent nano-inhibitors of TLR4 signaling by modulating the process ...

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