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Reactive Oxygen and Nitrogen Species in Pathogenesis of Vascular Complications of Diabetes

Son SM

Macrovascular and microvascular diseases are currently the principal causes of morbidity and mortality in subjects with diabetes. Disorders of the physiological signaling functions of reactive oxygen species (superoxide and hydrogen...
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Rhamnazin inhibits LPS-induced inflammation and ROS/RNS in raw macrophages

Kim YJ

PURPOSE: The aim of this work was to investigate the beneficial effects of rhamnazin against inflammation, reactive oxygen species (ROS)/reactive nitrogen species (RNS), and anti-oxidative activity in murine macrophage RAW264.7...
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Clinical Applications of Antioxidants

Park JH, Kweon GR

Reactive oxygen species (ROS) and reactive nitrogen species (RNS) are natural by-products of cellular physiological processes involving metabolism of compounds containing oxygen and nitrogen, respectively. Physiological defense mechanisms against ROS/RNS...
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The Antioxidative and Antimicrobial Effects of Gloiopeltis Tenax

Jung YH, Jung BM, Kang DY, Ku MJ, Shin MO, Bae SJ

  • KMID: 2269984
  • Korean J Nutr.
  • 2006 Jun;39(4):366-371.
In this study, we investigated the antioxidative and antimicrobial activities of red algae Gloiopeltis tenax (GT). GT was extracted with methanol and then further fractionated it into four different types:...
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Effects of Particulate Matters on A549 and RAW 264.7 Cells

Baak YM, Kim JH, Kim KA, Ro CU, Kim HJ, Lim Y

  • KMID: 2140436
  • Korean J Prev Med.
  • 2001 Feb;34(1):41-46.
OBJECTIVES: To investigate the effects of particulate matter (PM), a marker of environmental pollution derived from combustion sources, on lung epithelial cells (A549) and macrophage (RAW 264.7). METHODS: The production of...
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A Systematic Review of Oxidative Stress and Safety of Antioxidants in Diabetes: Focus on Islets and Their Defense

Karunakaran U, Park KG

A growing body of evidence suggests that hyperglycemia-induced oxidative stress plays an important role in diabetic complications, especially beta-cell dysfunction and failure. Under physiological conditions, reactive oxygen species serve as...
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Streptococcus mutans Strains Isolated in Korea Can Hardly Metabolize Exogenous Nitric Oxide

Lee HJ, Bang IS

Cariogenic Streptococcus mutans encounters a variety of host defense factors produced in oral cavity. Nitric oxide (NO) and NO-mediated reactive nitrogen species are potential antimicrobials of innate immunity that can...
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Characterization of an Extracytoplasmic Chaperone Spy in Protecting Salmonella against Reactive Oxygen/Nitrogen Species

Park YM, Lee HJ, Bang IS

Antimicrobial actions of reactive oxygen/nitrogen species (ROS/RNS) derived from products of NADPH oxidase and inducible nitric oxide (NO) synthase in host phagocytes inactivate various bacterial macromolecules. To cope with these...
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Diabetic Cardiomyopathy and Its Prevention by Nrf2: Current Status

Chen J, Zhang Z, Cai L

Diabetic cardiomyopathy (DCM), as one of the major cardiac complications in diabetic patients, is known to related with oxidative stress that is due to a severe imbalance between reactive oxygen...
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Effect of NMDA Receptor Antagonist and NOS Inhibitor on Spinal Sensory Neurons of Neuropathic Pain Animal Model

Lee KC, Choi YS, Lee HB, Park ST

  • KMID: 1946651
  • J Korean Pain Soc.
  • 2002 Jun;15(1):13-18.
BACKGROUND: In order to evaluate the effect of N-methyl-D-aspartate (NMDA) receptor antagonist, D-2-amino-5-phosphonovaleric acid (APV), nitric oxide synthase (NOS) inhibitor, and aminoguanidine (AGH) on rat spinal sensory neurons from the...
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Comparison of the Protective Effect of Indole beta-carbolines and R-(-)-deprenyl Against Nitrogen Species-Induced Cell Death in Experimental Culture Model of Parkinson's Disease

Han YS, Kim JM, Cho JS, Lee CS, Kim DE

BACKGROUND: The membrane permeability transition of mitochondria has been suggested to be involved in toxic and oxidative forms of cell injury. Mitochondrial dysfunction is considered to play a critical role...
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Influences of Particles on Pro-inflammatory Signalings in Pre-osteoclasts

Choi YH, Yang HM, Lee JH, Choi JS, Kang YH, Shin SR, Park YW, Kim DY, Chang JD, Lee SS

  • KMID: 1575165
  • J Korean Orthop Res Soc.
  • 2006 Apr;9(1):18-28.
PURPOSE: To evaluate the roles of macrophages and their influences on the signal transduction in the periprosthetic osteolysis, the pro-inflammatory signals were analyzed in particles-stimulated macrophages. MATERIALS AND METHODS: Raw 264.7...
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Riluzole Selective Antioxidant Effects in Cell Models Expressing Amyotrophic Lateral Sclerosis Endophenotypes

Sala G, Arosio A, Conti E, Beretta S, Lunetta C, Riva N, Ferrarese , Tremolizzo L

OBJECTIVE: Until recently, riluzole was the only drug licensed for amyotrophic lateral sclerosis (ALS). In spite of its efficacy, the mechanism of action remains elusive, and both blocking of glutamate...
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Acetoaminophen-induced accumulation of 8-oxodeoxyguanosine through reduction of Ogg1 DNA repair enzyme in C6 glioma cells

Wan J, Bae MA, Song BJ

  • KMID: 755668
  • Exp Mol Med.
  • 2004 Feb;36(1):71-77.
Large doses of acetaminophen (APAP) could cause oxidative stress and tissue damage through production of reactive oxygen/nitrogen (ROS/RNS) species and quinone metabolites of APAP. Although ROS/RNS are known to modify...
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Direct Detection of Reactive Nitrogen Species in Experimental Autoimmune Uveitis

Bae SR, Wu GS, Sevanian A, Schultz BE, Zamir E, Rao NA

PURPOSE: Demonstrate unequivocally the generation of nitric oxide in experimental autoimmune uveoretinitis by electron spin resonance spectroscopy (ESR) using ferrous iron complex of N-methyl-D-glucamine dithiocarbamate, (MGD)2-Fe2+, as a spin...
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