Sfoglia per Autore "Kyparos, A."
Items 1-20 di 29
-
99mTc-sestamibi uptake in rat skeletal muscle and heart: Physiological determinants and correlations
Arsos, G.; Kyparos, A.; Moralidis, E.; Kyparos, D.; Georga, S.; Sotiriadou, S.; Matziari, C.; Karakatsanis, C. (2009)The lipophilic cationic radiotracer 99mTc-sestamibi, known to be concentrated within mitochondria, is widely used for myocardial perfusion and to a lesser extent for muscle metabolism imaging. However, the exact distribution ... -
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% ... -
Aging is not a barrier to muscle and redox adaptations: Applying the repeated eccentric exercise model
Nikolaidis, M. G.; Kyparos, A.; Spanou, C.; Paschalis, V.; Theodorou, A. A.; Panayiotou, G.; Grivas, G. V.; Zafeiridis, A.; Dipla, K.; Vrabas, I. S. (2013)Despite the progress of analytic techniques and the refinement of study designs, striking disagreement exists among studies regarding the influence of exercise on muscle function and redox homeostasis in the elderly. The ... -
Altering redox homeostasis in humans: the repeated eccentric exercise model
Grivas, G. V.; Kyparos, A.; Paschalis, V.; Theodorou, A. A.; Panayiotou, G.; Margaritelis, N. V.; Zafeiridis, A.; Dipla, K.; Nikolaidis, M. G.; Vrabas, I. S. (2013) -
The Antioxidant Effects of a Polyphenol-Rich Grape Pomace Extract In Vitro Do Not Correspond In Vivo Using Exercise as an Oxidant Stimulus
Veskoukis, A. S.; Kyparos, A.; Nikolaidis, M. G.; Stagos, D.; Aligiannis, N.; Halabalaki, M.; Chronis, K.; Goutzourelas, N.; Skaltsounis, L.; Kouretas, D. (2012)Fruits, such as grapes, are essential food of the Mediterranean diet. Grape extracts have potent antioxidant and chemopreventive properties in vitro. Numerous studies have examined the effects of plant extract administration ... -
BLOOD OXIDATIVE STRESS MARKERS AFTER ULTRAMARATHON SWIMMING
Kabasakalis, A.; Kyparos, A.; Tsalis, G.; Loupos, D.; Pavlidou, A.; Kouretas, D. (2011)Kabasakalis, A, Kyparos, A, Tsalis, G, Loupos, D, Pavlidou, A, and Kouretas, D. Blood oxidative stress markers after ultramarathon swimming. J Strength Cond Res 25(3): 805-811, 2011-Data on redox balance in response to ... -
Blood reflects tissue oxidative stress depending on biomarker and tissue studied
Veskoukis, A. S.; Nikolaidis, M. G.; Kyparos, A.; Kouretas, D. (2009)This study investigated whether selected oxidative stress markers measured in blood adequately reflect redox status in skeletal muscle, heart, and liver. Several markers were determined after implementing two treatments ... -
Blood reflects tissue oxidative stress: a systematic review
Margaritelis, N. V.; Veskoukis, A. S.; Paschalis, V.; Vrabas, I. S.; Dipla, K.; Zafeiridis, A.; Kyparos, A.; Nikolaidis, M. G. (2015)We examined whether the levels of oxidative stress biomarkers measured in blood reflect the tissue redox status. Data from studies that measured redox biomarkers in blood, heart, liver, kidney and skeletal muscle were ... -
Differential effects of xanthine oxidase inhibition and exercise on albumin concentration in rat tissues
Veskoukis, A. S.; Kyparos, A.; Stagos, D.; Kouretas, D. (2010)Albumin is a protein present in almost all kinds of mammalian cells. It has binding sites for several molecules, and possesses antioxidant and other important properties. The aim of this study was to examine the effects ... -
Eccentric exercise as an oxidant stimulus for studying redox homeostasis: An aging study
Nikolaidis, M. G.; Kyparos, A.; Spanou, C.; Paschalis, V.; Theodorou, A. A.; Grivas, G. V. (2012) -
Effect of aerobic training on (99m)Tc-methoxy isobutyl isonitrile ((99m)Tc-sestamibi) uptake by myocardium and skeletal muscle: implication for noninvasive assessment of muscle metabolic profile
Kyparos, D.; Arsos, G.; Kyparos, A.; Georga, S.; Petridou, A.; Sotiriadou, S.; Mougios, V.; Matziari, C. (2008)Aim: The effect of long-term endurance training on skeletal muscle and myocardial uptake of (99m)Tc-sestamibi, a radiopharmaceutical accumulating in the mitochondria, was investigated. Methods: Twenty-six Wistar rats were ... -
The effect of allopurinol on protein carbonyls and swimming performance in rats
Veskoukis, A. S.; Nikolaidis, M. G.; Kyparos, A.; Kokkinos, D.; Varamenti, E.; Kouretas, D. (2008)Allopurinol is an inhibitor of xanthine oxidase. Xanthine oxidase is a major contributor of free radicals during exercise. Previous studies have shown that free radicals are vital for physiological adaptations in exercise. ... -
The effect of exercise-induced hypoxemia on blood redox status in well-trained rowers
Kyparos, A.; Riganas, C.; Nikolaidis, M. G.; Sampanis, M.; Koskolou, M. D.; Grivas, G. V.; Kouretas, D.; Vrabas, I. S. (2012)Exercise-induced arterial hypoxemia (EIAH), characterized by decline in arterial oxyhemoglobin saturation (SaO(2)), is a common phenomenon in endurance athletes. Acute intensive exercise is associated with the generation ... -
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 as a model to study redox homeostasis in blood: the effect of protocol and sampling point
Nikolaidis, M. G.; Kyparos, A.; Dipla, K.; Zafeiridis, A.; Sambanis, M.; Grivas, G. V.; Paschalis, V.; Theodorou, A. A.; Papadopoulos, S.; Spanou, C.; Vrabas, I. S. (2012)Twenty males ran either on a level treadmill (nonmuscle-damaging condition) or on a downhill treadmill (muscle-damaging condition). Blood and urine samples were collected before and after exercise (immediately after, 1h, ... -
Exercise-Induced Arterial Hypoxemia Does Not Magnify Oxidative Stress in Well-Trained Rowers
Vrabas, I. S.; Kyparos, A.; Riganas, C. S.; Nikolaidis, M. G.; Kouretas, D. (2008) -
INCREASED OXIDATIVE STRESS BLOOD MARKERS IN WELL-TRAINED ROWERS FOLLOWING TWO THOUSAND-METER ROWING ERGOMETER RACE
Kyparos, A.; Vrabas, I. S.; Nikolaidis, M. G.; Riganas, C. S.; Kouretas, D. (2009)Kyparos, A, Vrabas, IS, Nikolaidis, MG, Riganas, CS, and Kouretas, D. Increased oxidative stress blood markers in well-trained rowers following two thousand-meter rowing ergometer race. J Strength Cond Res 23(5): 1418-1426, ... -
Low vitamin C values are linked with decreased physical performance and increased oxidative stress: reversal by vitamin C supplementation
Paschalis, V.; Theodorou, A. A.; Kyparos, A.; Dipla, K.; Zafeiridis, A.; Panayiotou, G.; Vrabas, I. S.; Nikolaidis, M. G. (2014)Purpose: It has been suggested that part of the failure of antioxidant supplementation to reduce oxidative stress and promote health is that it has been administered in humans with normal levels of antioxidants. Methods: ... -
Low-Frequency Fatigue as an Indicator of Eccentric Exercise-Induced Muscle Injury: The Role of Vitamin E
Kyparos, A.; Nikolaidis, M. G.; Dipla, K.; Zafeiridis, A.; Paschalis, V.; Grivas, G. V.; Theodorou, A. A.; Albani, M.; Matziari, C.; Vrabas, I. S. (2012)This study investigates whether vitamin E can attenuate eccentric exercise-induced soleus muscle injury as indicated by the amelioration of in situ isometric force decline following a low-frequency fatigue protocol ... -
An oxidant stimulus may induce both oxidative and reductive stress: the issue of redox individuality
Margaritelis, N. V.; Kyparos, A.; Paschalis, V.; Theodorou, A. A.; Panayiotou, G.; Grivas, G. V.; Zafeiridis, A.; Dipla, K.; Nikolaidis, M. G.; Vrabas, I. S. (2013)