Green tea extract supplementation gives protection against exercise-induced oxidative damage in healthy men

Jówko, Ewa; Sacharuk, Jarosław; Bałasińska, B.; Ostaszewski, Paweł; Charmas, Małgorzata; Charmas, Robert

doi:10.1016/j.nutres.2011.09.020

Cited by 75 publications

(95 citation statements)

References 36 publications

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“…Richards et al [17] have reported an increase in sport performance after green tea catechins (GTC) ingestion, namely a short-term ingestion of EGCG caused VO 2-max increase in 14 out of 19 subjects. Jówko et al [18] have reported that a long-term (4-week) green tea extract (GTE) supplementation enhanced plasma total polyphenols at rest as well as 5 min after the muscular endurance test and it contributed to the rise of resting total antioxidant status in plasma of previously untrained men. They concluded that dietary supplementation with GTE may provide protection against oxidative damage induced by both short-term muscular endurance test and long-term strength training.…”

Section: Introductionmentioning

confidence: 99%

Blood serum DSC analysis of well-trained men response to CrossFit training and green tea extract supplementation

Michnik

Sadowska-Krępa

Domaszewski

et al. 2017

J Therm Anal Calorim

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Differential scanning calorimetry (DSC) has been used for the detection of post-exercise changes in blood serum resulting from participation in the CrossFit (CF) training combined with green tea extract (GTE) supplementation. Blood samples from 20 well-trained men were collected at rest, immediately post-exercise and after 1 h of recovery in two trials: first before and second after CF training combined with GTE or placebo administration in the supplemented (S) and control (C) groups, respectively. Selected muscle damage biomarkers have been compared in different phases of the experiment. A significant increase in blood lactate content has been observed post-exercise in both trials in both participants' groups. The opposite trends have been noted for the C and S groups in creatine kinase (CK) activity changes recorded during the first to the second trial: an increase in CK for the control and a decrease for the supplemented group in all phases of the experiment: pre-exercise, post-exercise and after recovery. In the second trial, all CK values for the S group have been found significantly lower than the corresponding values recorded in the C group. These results suggest a mitigate effect of GTE supplementation on post-training muscle damage. DSC results did not reveal clear effects of training nor GTE supplementation on serum denaturation transition. However, interesting dependences of thermodynamic parameters describing this transition have been observed in different phases of the experiment. Statistically significant negative correlations have been found between post-training VO 2max and post-exercise thermodynamic parameters associated with haptoglobin contribution to serum denaturation transition.

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Section: Introductionmentioning

confidence: 99%

Blood serum DSC analysis of well-trained men response to CrossFit training and green tea extract supplementation

Michnik

Sadowska-Krępa

Domaszewski

et al. 2017

J Therm Anal Calorim

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“….05, compared with C (control) group Effects of icariin on the serum SOD, GPx and MDA of mice. Exhaustive exercise is often associated with an increase in the production of free radical and ROS in various tissues, which may overwhelm the capacity of the antioxidant defense systems, and oxidative stress occurs [13]. Accumulating evidence indicates that the accumulation of free radical and ROS are responsible for exercise-induced protein oxidation and contribute strongly to physical fatigue [14].…”

Section: Resultsmentioning

confidence: 99%

Anti-fatigue Properties of Icariin Isolated from Epimedium Brevicornum Maxim in Mice

Li¹,

Li²

2016

Proceedings of the 2016 2nd International Conference on Advances in Energy, Environment and Chemical Engineering (AEECE 2016)

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Abstract. Aim of the present study was to evaluate the anti-fatigue properties of icariin in mice. The animals were divided into four groups, namely the control, low-dose icariin treated, medium-dose icariin treated, and high-dose icariin treated groups, which received distilled water and 5, 10 and 20 mg/kg icariin, respectively, by oral gavage. After 28 days, the forced swimming test was performed, along with the determination of blood lactic acid (BLA), serum urea nitrogen (SUN), superoxide dismutase (SOD), glutathione peroxidase (GPx) and malondialdehyde (MDA). The results showed that icariin could extend the exhaustive swimming times, as well as decrease the BLA, SUN and serum MDA levels, while increasing the serum SOD and GPx levels. Thus, the results demonstrated that icariin has anti-fatigue properties.

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“…This harmful status may lead to oxidative damage in all cellular components, including proteins, nucleic acids, lipids, and carbohydrates [7]. Exhaustive exercise-induced oxidative stress may result in muscle fatigue, muscle damage, and a reduction in physical performance [8]. Several studies have indicated that dietary antioxidants may prevent exercise-induced oxidative damage, as they are able to detoxify a number of peroxides directly through scavenging ROS that are generated during exercise or indirectly as modulators of intracellular pro-and anti-oxidant enzymes [9].…”

Section: Introductionmentioning

confidence: 99%

Polysaccharides from Polygonatum odoratum strengthen antioxidant defense system and attenuate lipid peroxidation against exhaustive exercise-induced oxidative stress in mice

Yang¹,

Zhang²

2017

Trop. J. Pharm Res

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Green tea extract supplementation gives protection against exercise-induced oxidative damage in healthy men

Cited by 75 publications

References 36 publications

Blood serum DSC analysis of well-trained men response to CrossFit training and green tea extract supplementation

Blood serum DSC analysis of well-trained men response to CrossFit training and green tea extract supplementation

Anti-fatigue Properties of Icariin Isolated from Epimedium Brevicornum Maxim in Mice

Polysaccharides from Polygonatum odoratum strengthen antioxidant defense system and attenuate lipid peroxidation against exhaustive exercise-induced oxidative stress in mice

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