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Category Archives: Oxidative Stress

Oxidative nucleotide damage and superoxide dismutase expression in the brains of xeroderma pigmentosum group A and Cockayne syndrome.

Brain Dev. 2005 Jan;27(1):34-8. Hayashi M¹, Araki S, Kohyama J, Shioda K, Fukatsu R. Abstract Xeroderma pigmentosum group A (XPA) and Cockayne syndrome (CS) are caused by a genetic defect of nucleotide excision repair mechanisms, showing cutaneous hypersensitivity to sunlight and progressive neurological disturbances. The cause of neurological abnormalities has yet to be clarified and […]

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Oxidative stress in developmental brain disorders.

Neuropathology. 2009 Feb;29(1):1-8.  Hayashi M¹. ¹Department of Clinical Neuropathology, Tokyo Metropolitan Institute for Neuroscience, Tokyo, Japan. Abstract Oxidative stress is one of the predisposing factors in adult neurological disorders. We have examined the involvement of oxidative stress in child-onset neurodegenerative disorders, and here we review the findings from our analysis. In cases of Cockayne syndrome, […]

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Possible protective effect by SOD on UV damage in xeroderma pigmentosum (XP)

  J Invest Dermatol. 1989 Oct;93(4):506-10. Reduced superoxide dismutase activity in xeroderma pigmentosum fibroblasts. Nishigori C¹, Miyachi Y, Imamura S, Takebe H. ¹Department of Dermatology, Faculty of Medicine, Kyoto University, Japan. Abstract This study was performed in order to assess the possible protective effect of superoxide dismutase (SOD) on ultraviolet (UV) damage in xeroderma pigmentosum […]

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Cancer chemoprevention by the antioxidant tempol acts partially via the p53 tumor suppressor.

Hum Mol Genet. 2005 Jun 15;14(12):1699-708. Epub 2005 May 11. Erker L¹, Schubert R, Yakushiji H, Barlow C, Larson D, Mitchell JB, Wynshaw-Boris A. ¹Department of Pediatrics, UCSD School of Medicine, La Jolla, CA Abstract We previously demonstrated that the nitroxide antioxidant tempol (4-hydroxy-2,2,6,6-tetramethylpiperidine-N-oxyl) increased latency to tumorigenesis and doubled (100%) the lifespan of Atm-deficient […]

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Neuroprotective effects of TEMPOL in central and peripheral nervous system models of Parkinson’s disease.

Biochem Pharmacol. 2005 Nov 1;70(9):1371-81. Liang Q¹, Smith AD, Pan S, Tyurin VA, Kagan VE, Hastings TG, Schor NF. ¹Department of Pediatrics, University of Pittsburgh, Pittsburgh, PA Abstract TEMPOL (4-hydroxy-2,2,6,6-tetramethylpiperidine-N-oxyl) is a stable nitroxyl antioxidant. Previous studies have suggested that TEMPOL is protective in acute disorders thought to involve reactive oxygen species (ROS), such as […]

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Nitroxide stable radical suppresses autoimmune uveitis in rats.

Free Radic Biol Med. 1999 Jul;27(1-2):7-15. Zamir E¹, Zhang R, Samuni A, Kogan M, Pe’er J. ¹Department of Ophthalmology, Hadassah-Hebrew University Medical School, Jerusalem, Israel. Abstract Free radicals have been implicated in the pathogenesis of experimental autoimmune uveoretinitis (EAU). Nitroxides are stable radicals with a superoxide-dismutase-mimicking activity, which exert an anti-inflammatory effect in various animal […]

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Tempol Moderately Extends Survival in a hSOD1G93A ALS Rat Model by Inhibiting Neuronal Cell Loss, Oxidative Damage and Levels of Non-Native hSOD1G93A Forms

PLoS One. 2013; 8(2): e55868. Linares E¹, Seixas LV, dos Prazeres JN, Ladd FV, Ladd AA, Coppi AA, Augusto O. ¹Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil. Abstract Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disease characterized by the progressive dysfunction and death of motor neurons by mechanisms […]

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Tempol reduces oxidative stress, improves insulin sensitivity.

Diabetes. 2005 Jul;54(7):2219-26. Banday AA¹, Marwaha A, Tallam LS, Lokhandwala MF. ¹Heart and Kidney Institute, University of Houston, Houston, Texas Abstract Oxidative stress plays a pathogenic role in hypertension, particularly the one associated with diabetes and obesity. Here, we test the hypothesis that renal dopamine D1 receptor dysfunction in obese Zucker rats is caused by […]

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Tempol Inhibits Pancreatic Cancer Cell Growth

Free Radical Biology and Medicine, Volume 49, Supplement, 2010, Pages S58 Du J¹, Olney K¹, Schrock H¹, Moser J¹, Wagner B¹, Sibenaller Z¹, Buettner G¹, Cullen J¹ ¹Department of Radiation Oncology, University of Iowa College of Medicine, Iowa City, Iowa ABSTRACT NOT AVAILABLE ONLINE – See full ARTICLE

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Tempol improves cutaneous thermal hyperemia through increasing nitric oxide bioavailability in young smokers*

Am J Physiol Heart Circ Physiol. 2014 Jun 1;306(11):H1507-11. Fujii N1, Brunt VE1, Minson CT1 1Department of Human Physiology, The University of Oregon, Eugene, Oregon. Abstract We recently found that young cigarette smokers display cutaneous vascular dysfunction relative to non-smokers, which is partially due to reduced nitric oxide (NO) synthase (NOS)-dependent vasodilation. In this study, […]

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