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NADPH oxidase mediated oxidative stress in hepatic fibrogenesis

Paik YH, Brenner DA

NADPH oxidase (NOX) is a multicomponent enzyme complex that generates reactive oxygen species (ROS) in response to a wide range of stimuli. ROS is involved as key secondary messengers in...
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Cilostazol Attenuates 4-hydroxynonenal-enhanced CD36 Expression on Murine Macrophages via Inhibition of NADPH Oxidase-derived Reactive Oxygen Species Production

Yun MR, Park HM, Seo KW, Kim CE, Yoon JW, Kim CD

Although anti-atherogenic effects of cilostazol have been suggested, its effects on the expression of SR in macrophages are unclear. This study investigated the role of cilostazol on CD36 expression...
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Induction of NADPH oxidases and antioxidant proteins by Porphyromonas gingivalis in KB cells

Kim MJ, Chung HJ, Park BJ, Park HR, Lee TH

  • KMID: 2321614
  • J Korean Acad Periodontol.
  • 2006 Dec;36(4):863-878.
No abstract available.
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Epigallocatechin-3-gallate Regulates NADPH Oxidase Expression in Human Umbilical Vein Endothelial Cells

Ahn HY, Kim CH, Ha TS

Vascular NADPH oxidase plays a pivotal role in producing superoxide in endothelial cells and thus acts in the initiation and development of inflammatory cardiovascular diseases such as atherosclerosis. Epigallocatechin-3-gallate (EGCG),...
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Lignans with NADPH Oxidase 2 (NOX2)-inhibitory Activity from the Fruits of Schisandra chinensis

Park JM, Pel P, Chin YW, Lee MY

An isoform of NADPH oxidase (NOX), NOX2 is a superoxide-generating enzyme involved in diverse pathophysiological events. Although its potential as a therapeutic target has been validated, there is no clinically...
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Effect of Apocynin on Acute Lung Injury in Rats Given Interleukin-1alpha Intratracheally

Lee YM

  • KMID: 2319532
  • Tuberc Respir Dis.
  • 2011 Jun;70(6):482-489.
BACKGROUND: Based on the assertion that apocynin diminishes acute lung injury (ALI) by inhibition of NADPH oxidase, the effect of apocynin was tested in interleukin-1alpha (IL-1)-induced ALI in rats. METHODS: IL-1...
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YJI-7 Suppresses ROS Production and Expression of Inflammatory Mediators via Modulation of p38MAPK and JNK Signaling in RAW 264.7 Macrophages

Oh HJ, Magar TB, Pun NT, Lee Y, Kim EH, Lee ES, Park PH

Chalcone, (2E)-1,3-Diphenylprop-2-en-1-one, and its synthetic derivatives are known to possess anti-oxidative and anti-inflammatory properties. In the present study, we prepared a novel synthetic chalcone compound, (E)-1-(4-hydroxyphenyl)-3-(2-(trifluoromethoxy)phenyl)prop-2-en-1-one name (YJI-7), and investigated...
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Diphenyleneiodonium Inhibits Apoptotic Cell Death of Gastric Epithelial Cells Infected with Helicobacter pylori in a Korean Isolate

Cho SO, Lim JW, Kim H

NADPH oxidase produces a large amount of reactive oxygen species (ROS) in Helicobacter pylori (H. pylori)-induced gastric epithelial cells. Even though ROS mediate apoptotic cell death, direct involvement of NADPH...
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Calyculin A modulates activation of the NADPH-oxidase in Me2SO-differentiated HL-60 cells

Park JI, Uhlinger D, Chung BS, Kim IH, Kwak JY

  • KMID: 755011
  • Exp Mol Med.
  • 1998 Dec;30(4):214-220.
Human promyelocytic leukemia cells (HL-60) have been used as a model system in which to study the effects of protein phosphatase inhibitors on NADPH-oxidase activation. Since O2- is generated by...
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5-aminoimidazole-4-carboxamide Riboside Induces Apoptosis Through AMP-activated Protein Kinase-independent and NADPH Oxidase-dependent Pathways

Wi SM, Lee KY

It is debatable whether AMP-activated protein kinase (AMPK) activation is involved in anti-apoptotic or pro-apoptotic signaling. AICAR treatment increases AMPK-alpha1 phosphorylation, decreases intracellular reactive oxygen species (ROS) levels, and significantly...
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p47phox, the phagocyte NADPH oxidase/NOX2 organizer: structure, phosphorylation and implication in diseases

El-Benna J, Dang PM, Gougerot-Pocidalo MA, Marie JC, Braut-Boucher F

Phagocytes such as neutrophils play a vital role in host defense against microbial pathogens. The anti-microbial function of neutrophils is based on the production of superoxide anion (O2(.-)), which generates...
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Chronic Granulomatous Disease on Jeju Island, Korea

Cho M, Shin KS

Chronic granulomatous disease (CGD) is a rare inherited disorder of a defective NADPH oxidase enzyme, resulting in very low or no production of superoxide and subsequent reactive oxygen species. Consequently,...
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Phagocytosis induces superoxide formation and apoptosis in macrophages

Park JB

  • KMID: 1093604
  • Exp Mol Med.
  • 2003 Oct;35(5):325-335.
Phagocytosis by inflammatory cells is an essential step and a part of innate immunity for protection against foreign pathogens, microorganism or dead cells. Phagocytosis, endocytotic events sequel to binding particle...
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Native low-density lipoprotein-induced superoxide anion contributes to proliferation of human aortic smooth muscle cells

Lim HK, Shin W, Lee JY, Ryoo S

BACKGROUND: Native low-density lipoprotein (nLDL) was one of the modifiable risk factors contributed directly to cardiovascular diseases development. We investigated that nLDL stimulation induced NADPH oxidase activation and superoxide production...
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NADPH Oxidase 1 and NADPH Oxidase 4 Have Opposite Prognostic Effects for Patients with Hepatocellular Carcinoma after Hepatectomy

Ha SY, Paik YH, Yang JW, Lee MJ, Bae H, Park CK

BACKGROUND/AIMS: Nicotinamide adenine dinucleotide phosphate oxidase (NOX)-mediated reactive oxygen species contribute to various liver diseases, including hepatocellular carcinoma (HCC). Uncertainties remain regarding the prognostic relevance of NOX1 and NOX4 protein...
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Involvement of Vascular NAD(P)H Oxidase-derived Superoxide in Cerebral Vasospasm after Subarachnoid Hemorrhage in Rats

Kim DE, Kim CD

  • KMID: 1614853
  • Korean J Physiol Pharmacol.
  • 2002 Feb;6(1):15-20.
The role of vascular NAD(P)H oxidase in subarachnoid hemorrhage (SAH)-induced vasospasm in the basilar artery was examined in a rat model. Arterial vasospasm characterized by increased wall thickness and decreased...
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Effects of N-Acetylcysteine on Nicotinamide Dinucleotide Phosphate Oxidase Activation and Antioxidant Status in Heart, Lung, Liver and Kidney in Streptozotocin-Induced Diabetic Rats

Lei S, Liu Y, Liu H, Yu H, Wang H, Xia Z

PURPOSE: Hyperglycemia increases reactive oxygen species (ROS) and the resulting oxidative stress plays a key role in the pathogenesis of diabetic complications. Nicotinamide dinucleotide phosphate (NADPH) oxidase is one of...
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Efficacy of Diphenyleneiodonium Chloride (DPIC) Against Diverse Plant Pathogens

Jung B, Li T, Ji S, Lee J

Many of the fungicides and antibiotics currently available against plant pathogens are of limited use due to the emergence of resistant strains. In this study, we examined the effects of...
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Thyroid and Hydrogen Peroxide

Park DJ

The thyroid gland produces high concentrations of hydrogen peroxide (H2O2) which is used for the biosynthesis of the thyroid hormones, triiodothyronine and thyroxine. The most important step in thyroid hormone...
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Cerulein Pancreatitis: Oxidative Stress, Inflammation, and Apoptosis

Kim H

  • KMID: 2135123
  • Gut Liver.
  • 2008 Sep;2(2):74-80.
Cerulein pancreatitis is similar to human edematous pancreatitis, manifesting with dysregulation of digestive enzyme production and cytoplasmic vacuolization, the death of acinar cells, edema formation, and infiltration of inflammatory cells...
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