menadione/inflammation

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Inhibitory Effects of Menadione on Helicobacter pylori Growth and Helicobacter pylori-Induced Inflammation via NF-κB Inhibition.

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H. pylori is classified as a group I carcinogen by WHO because of its involvement in gastric cancer development. Several reports have suggested anti-bacterial effects of menadione, although the effect of menadione on major virulence factors of H. pylori and H. pylori-induced

Amelioration by menadione of the experimental chronic immune arthritis in the rabbit.

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The immunological induction of arthritis in the knee of the rabbit is well established as a model for human rheumatoid arthritis. It has the special advantage of allowing the development of the condition, and the effect of disease-modifying agents, to be followed. Attention has been focussed on the

Ornithine and Homocitrulline Impair Mitochondrial Function, Decrease Antioxidant Defenses and Induce Cell Death in Menadione-Stressed Rat Cortical Astrocytes: Potential Mechanisms of Neurological Dysfunction in HHH Syndrome.

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Hyperornithinemia-hyperammonemia-homocitrullinuria (HHH) syndrome is caused by deficiency of ornithine translocase leading to predominant tissue accumulation and high urinary excretion of ornithine (Orn), homocitrulline (Hcit) and ammonia. Although affected patients commonly present neurological

Induction of hepatic metallothionein by nonmetallic compounds associated with acute-phase response in inflammation.

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Induction of hepatic metallothionein (MT) synthesis by several nonmetallic compounds and its relationship to an acute-phase response in inflammation were studied in mice. Subcutaneous injections of menadione, paraquat, carbon tetrachloride (CCl4), and several organic solvents caused an increase of

5-O-Acyl plumbagins inhibit DNA polymerase activity and suppress the inflammatory response.

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We previously found that vitamin K3 (menadione, 2-methyl-1,4-naphthoquinone) inhibits the activity of human mitochondrial DNA polymerase (pol) γ. In this study, we focused on plumbagin (5-hydroxy-2-methyl-1,4-naphthoquinone), and chemically synthesized novel plumbagins conjugated with C2:0 to C22:6

Effects of menadione, a reactive oxygen generator, on leukotriene secretion from RBL-2H3 cells.

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Reactive oxygen species (ROS) are produced in various cells and affect many biological processes. We previously reported that 2-methyl-1,4-naphtoquinone (menadione) inhibited Ca(2+) influx from the extracellular medium and exocytosis evoked by antigen stimulation in the mast cell line, RBL-2H3. Mast

Surfactant downregulates synthesis of DNA and inflammatory mediators in normal human lung fibroblasts.

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The initial inflammatory event in the adult respiratory distress syndrome (ARDS) is followed by fibroproliferation and a cascade of fibroblast-derived mediators. Because lung fibroblasts may be exposed to surfactant as well as inflammatory cytokines during ARDS, we hypothesized that surfactant might

Regulation of macrophage inflammatory protein-1alpha mRNA by oxidative stress.

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Accumulation of inflammatory cells within the lung has been implicated in oxidative injury. Recruitment of these cells to a tissue site is a complex process that depends in part upon the local expression of appropriate proinflammatory chemokines. Macrophage inflammatory protein-1alpha (MIP-1alpha),

Cardiac and renal toxicity of menadione in rat.

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Menadione induced oxidative stress in cells. The acute and cumulative toxic effects of menadione were evaluated by intravenous injection of the drug in Wistar rats. For evaluation of acute toxicity, single bolus doses of 25, 50, 100 and 150 mg/kg menadione were used. For evaluation of cumulative

Endogenous carbon monoxide production by menadione.

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BACKGROUND Smokers have a significantly decreased risk of pre-eclampsia (PE), possibly attributed to an increase in blood carbon monoxide (CO) concentrations. At physiological concentrations, CO has been demonstrated to have placental vasodilatory and anti-inflammatory properties. Increasing

Acetaminophen inhibits neuronal inflammation and protects neurons from oxidative stress.

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BACKGROUND Recent studies have demonstrated a link between the inflammatory response, increased cytokine formation, and neurodegeneration in the brain. The beneficial effects of anti-inflammatory drugs in neurodegenerative diseases, such as Alzheimer's disease (AD), have been documented. Increasing

Inhibitory effects of vitamin K₃ derivatives on DNA polymerase and inflammatory activity.

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Previously, we reported that vitamin K₃ (menadione, 2-methyl-1,4-naphthoquinone) (compound 2) inhibits the activity of human mitochondrial DNA polymerase γ (pol γ). In this study, we investigated the inhibitory effects (IEs) of vitamin K3 and its derivatives, such as 1,4-naphthoquinone (compound 1)

Nonsteroidal anti-inflammatory drugs, short-chain fatty acids, and reactive oxygen metabolism in human colorectal cancer cells.

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Nonsteroidal anti-inflammatory drugs (NSAIDs) and short-chain fatty acids are effective suppressors of colorectal cancer that may work in part by accentuating apoptosis of transformed cells. Since reactive oxygen species (ROS) can play an important role in regulating cell growth and cell death, we

Activation of a PGC-1-related coactivator (PRC)-dependent inflammatory stress program linked to apoptosis and premature senescence.

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PGC-1-related coactivator (PRC), a growth-regulated member of the PGC-1 coactivator family, contributes to the expression of the mitochondrial respiratory apparatus. PRC also orchestrates a robust response to metabolic stress by promoting the expression of multiple genes specifying inflammation,

In vitro characterization of the enzymes involved in the metabolism of 1-furan-2-yl-3-pyridin-2-yl-propenone, an anti-inflammatory propenone compound.

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Carbonyl reduction is a significant step in the phase I biotransformation of a great variety of aromatic, alicyclic and aliphatic carbonyl compounds. 1-Furan-2-yl-3-pyridin-2-yl-propenone (FPP-3) has been shown to have anti-inflammatory activity as it inhibits the production of nitric oxide and

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