Πλοήγηση ανά Θέμα "LIPID-PEROXIDATION"

Activity of grape extracts from Greek varieties of Vitis vinifera against mutagenicity induced by bleomycin and hydrogen peroxide in Salmonella typhimurium strain TA102

Stagos, D.; Kazantzoglou, G.; Theofanidou, D.; Kakalopoulou, G.; Magiatis, P.; Mitaku, S.; Kouretas, D. (2006)

Several in vivo and in vitro studies have shown that grape extracts could prevent certain steps in carcinogenesis and a few mechanisms have been proposed for this activity. In this study, the potential antimutagenic activity ...

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% ...

Age-Related Responses in Circulating Markers of Redox Status in Healthy Adolescents and Adults during the Course of a Training Macrocycle

Zalavras, A.; Fatouros, I. G.; Deli, C. K.; Draganidis, D.; Theodorou, A. A.; Soulas, D.; Koutsioras, Y.; Koutedakis, Y.; Jamurtas, A. Z. (2015)

Redox status changes during an annual training cycle in young and adult track and field athletes and possible differences between the two age groups were assessed. Forty-six individuals (24 children and 22 adults) were ...

Antioxidant and chemopreventive properties of polyphenolic compounds derived from Greek legume plant extracts

Spanou, C.; Bourou, G.; Dervishi, A.; Aligiannis, N.; Angelis, A.; Komiotis, D.; Skaltsounis, A. L.; Kouretas, D. (2008)

Recently, phytochemical compounds present in legumes have gained a lot of interest because they are considered to be possible chemopreventive agents. In the present study, 14 polyphenolic compounds were extracted and ...

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 ...

Antioxidant effects of whey protein on muscle C2C12 cells

Kerasioti, E.; Stagos, D.; Priftis, A.; Aivazidis, S.; Tsatsakis, A. M.; Hayes, A. W.; Kouretas, D. (2014)

In the present study, the in vitro scavenging activity of sheep whey protein against free radicals, as well as its reducing power were determined and compared with that of beef protein, soy protein and cow whey protein. ...

Application of a new oxidation-reduction potential assessment method in strenuous exercise-induced oxidative stress

Stagos, D.; Goutzourelas, N.; Bar-Or, D.; Ntontou, A. M.; Bella, E.; Becker, A. T.; Statiri, A.; Kafantaris, I.; Kouretas, D. (2015)

Objectives: The aim of the study was to test a novel method for assessing oxidative stress, the RedoxSYS (TM) diagnostic system, a holistic, fast, minimally invasive, and requiring small sample volume method, that measures ...

Assessment of polyphenolic content, antioxidant activity, protection against ROS-induced DNA damage and anticancer activity of Vitis vinifera stem extracts

Apostolou, A.; Stagos, D.; Galitsiou, E.; Spyrou, A.; Haroutounian, S.; Portesis, N.; Trizoglou, I.; Hayes, A. W.; Tsatsakis, A. M.; Kouretas, D. (2013)

Grape extracts and wine have been studied widely due to their beneficial effects on human health. However, there are only few studies from grape stems extracts. Therefore, the main objective of the present study was the ...

Blood as a reactive species generator and redox status regulator during exercise

Nikolaidis, M. G.; Jamurtas, A. Z. (2009)

The exact origin of reactive species and oxidative damage detected in blood is largely unknown. Blood interacts with all organs and tissues and, consequently, with many possible sources of reactive species. In addition, a ...

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 ...

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 ...

Dietary oxidative stress and antioxidant defense with an emphasis on plant extract administration

Veskoukis, A. S.; Tsatsakis, A. M.; Kouretas, D. (2012)

Eukaryotic cells generally function in a reduced state, but an amount of reactive species is essential for several biochemical processes. The antioxidant network is the defensive mechanism that occurs when the concentration ...

Effect of 1-year oral alpha-tocopherol administration on anticardiolipin antibodies in hemodialysis patients

Antoniadi, G.; Eleftheriadis, T.; Liakopoulos, V.; Kakasi, E.; Vayonas, G.; Kortsaris, A.; Vargemezis, V. (2005)

Background. Anticardiolipin antibodies (ACA) have been related to an increased incidence of thrombotic episodes and atherosclerosis progression. ACA levels are elevated in hemodialysis (HD) patients. Atheroembolic episodes ...

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 ...

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 ...

The effect of muscle-damaging exercise on blood and skeletal muscle oxidative stress: Magnitude and time-course considerations

Nikolaidis, M. G.; Jamurtas, A. Z.; Paschalis, V.; Fatouros, I. G.; Koutedakis, Y.; Kouretas, D. (2008)

The aim of this article is to present the effects of acute muscle-damaging exercise on oxidative stress/damage of animal and human tissues using a quantitative approach and focusing on the time-course of exercise effects. ...