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Browsing by Subject "free radicals"

Now showing items 1-14 of 14

    • Acute exercise markedly increases blood oxidative stress in boys and girls 

      Nikolaidis, M. G.; Kyparos, A.; Hadziioannou, M.; Panou, N.; Samaras, L.; Jamurtas, A. Z.; Kouretas, D. (2007)
      This study investigated the effect of an acute swimming protocol on selected blood redox status indices in trained children. Eleven boys and 11 girls (aged 9-11 y) swam 12 bouts of 50 m at a pace corresponding to 70%-75% ...

    • Comparison of the blood redox status between long-distance and short-distance runners 

      Kostaropoulos, I. A.; Nikolaidis, M. G.; Jamurtas, A. Z.; Ikonomou, G. V.; Makrygiannis, V.; Papadopoulos, G.; Kouretas, D. (2006)
      Exercise increases the production of reactive oxygen species, which may damage a number of cell constituents. Organisms have developed a sophisticated antioxidant system for protection against reactive oxygen species. Our ...

    • Decreased blood oxidative stress after repeated muscle-damaging exercise 

      Nikolaidis, M. G.; Paschalis, V.; Giakas, G.; Fatouros, A. G.; Koutedakis, Y.; Kouretas, D.; Jamurtas, A. Z. (2007)
      Purpose: To examine the effect of repeated muscle-damaging exercise on the time-course changes in several indices of muscle damage, and to compare them with changes in blood oxidative stress indices. Methods: Twelve females ...

    • Effect of exercise on oxidative stress in individuals with glucose-6-phosphate dehydrogenase deficiency 

      Jamurtas, A. Z.; Fatouros, I. G.; Koukosias, N.; Manthou, E.; Tofas, T.; Yfanti, C.; Nikolaidis, M. G.; Koutedakis, Y. (2006)
      The effect of exercise on oxidative stress in glucosee-phosphate dehydrogenase (G6PD)-deficient individuals was investigated. Materials and Methods: Nine G6PD-deficient males and nine males with normal G6PD activity were ...

    • Effects of xanthine oxidase inhibition on oxidative stress and swimming performance in rats 

      Veskoukis, A. S.; Nikolaidis, M. G.; Kyparos, A.; Kokkinos, D.; Nepka, C.; Barbanis, S.; Kouretas, D. (2008)
      The aim of this study was to examine the effect of allopurinol, a xanthine oxidase inhibitor, on oxidative stress and physical performance after swimming until exhaustion in rats. Blood and gastrocnemius muscle samples ...

    • Exercise-induced oxidative damage in a person with glucose-6-phosphate dehydrogenase deficiency 

      Jamurtas, A. Z.; Fatouros, I. G.; Alexiou, V. S.; Chung, S. C.; Goldfarb, A. H. (2004)
      The purpose of this case study was to examine the effects of a single submaximal aerobic workout on the extent of oxidative stress biomarkers in blood in a patient with glucose-6-phosphate dehydrogenase deficiency (G6PD) ...

    • Exercise-induced oxidative stress in G6PD-deficient individuals 

      Nikolaidis, M. G.; Jamurtas, A. Z.; Paschalis, V.; Kostaropoulos, I. A.; Kladi-Skandali, A.; Balamitsi, V.; Koutedakis, Y.; Kouretas, D. (2006)
      Purpose: This study was designed to investigate whether individuals with glucose-6phosphate dehydrogenase (G6PD) deficiency can exercise without greater perturbations in their redox status compared with non-G6PD-deficient ...

    • Favorable and prolonged changes in blood lipid profile after muscle-damaging exercise 

      Nikolaidis, M. G.; Paschalis, V.; Giakas, G.; Fatouros, I. G.; Sakellariou, G. K.; Theodorou, A. A.; Koutedakis, Y.; Jamurtas, A. Z. (2008)
      Purpose: To examine the effect of repeated muscle-damaging exercise on the time-course changes in blood lipid and lipoprotein profile and compare them with changes in indices of muscle function and damage. Methods: Twelve ...

    • Flavonoids induce HIF-1 alpha but impair its nuclear accumulation and activity 

      Triantafyllou, A.; Mylonis, L.; Simos, G.; Bonanou, S.; Tsakalof, A. (2008)
      Hypoxia-inducible factor-1 alpha (HIF-1 alpha) is the regulatory subunit of the transcription factor HIF-1, which is highly involved in the pathology of diseases associated with tissue hypoxia. In this study we investigated ...

    • Increased oxidative stress indices in the blood of child swimmers 

      Gougoura, S.; Nikolaidis, M. G.; Kostaropoulos, I. A.; Jamurtas, A. Z.; Koukoulis, G.; Kouretas, D. (2007)
      The blood redox status of child athletes is compared with that of age-matched untrained individuals. In the present study, 17 swimmers (10.1 +/- 1.6 years) and 12 non-athletes (9.9 +/- 1.1 years) participated. Reduced ...

    • Lipid peroxidation and tissue damage 

      Mylonas, C.; Kouretas, D. (1999)
      In recent years it has become apparent that the oxidation of lipids, or lipid peroxidation, is a crucial step in the pathogenesis of several disease states in adult and infant patients. Lipid peroxidation is a process ...

    • Sampling time is crucial for measurement of aerobic exercise-induced oxidative stress 

      Michailidis, Y.; Jamurtas, A. Z.; Nikolaidis, M. G.; Fatouros, I. G.; Koutedakis, Y.; Papassotiriou, I.; Kouretas, D. (2007)
      Purpose: To thoroughly investigate the time-course changes of several commonly used markers of oxidative stress by performing serial measurements during a 24-h period after an acute bout of strenuous cardiovascular exercise. ...

    • TIME-COURSE OF CHANGES IN OXIDATIVE STRESS AND ANTIOXIDANT STATUS RESPONSES FOLLOWING A SOCCER GAME 

      Fatouros, I. G.; Chatzinikolaou, A.; Douroudos, II; Nikolaidis, M. G.; Kyparos, A.; Margonis, K.; Michailidis, Y.; Vantarakis, A.; Taxildaris, K.; Katrabasas, I.; Mandalidis, D.; Kouretas, D.; Jamurtas, A. Z. (2010)
      Fatouros, IG, Chatzinikolaou, A, Douroudos, II, Nikolaidis, MG, Kyparos, A, Margonis, A, Michailidis, Y, Vantarakis, A, Taxildaris, K, Katrabasas, I, Mandalidis, D, Kouretas, D, and Jamurtas, AZ. Time-course of changes in ...

    • Uniform and prolonged changes in blood oxidative stress after muscle-damaging exercise 

      Paschalis, V.; Nikolaidis, M. G.; Fatouros, I. G.; Giakas, G.; Koutedakis, Y.; Karatzaferi, C.; Kouretas, D.; Jamurtas, A. Z. (2007)
      Background: The effect of eccentric exercise on the time-course changes in several indices of muscle damage and blood oxidative stress was examined. Materials and Methods: Isometric torque, delayed-onset muscle soreness, ...