GRAPE SEED EXTRACT SUPPLEMENTATION AND THE EFFECTS ON THE BIOMARKERS OF OXIDATIVE STRESS AND METABOLIC PROFILES IN FEMALE VOLLEYBALL PLAYERS: A RANDOMIZED, DOUBLE-BLIND, PLACEBO-CONTROLLED CLINICAL TRIAL

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TAGHIZADEH MOHSEN; MALEKIAN ELAHEH; Memarzadeh Mohammad Reza; MOHAMMADI ALI AKBAR; ASEMI ZATOLLAH

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Journal: Iranian Red Crescent Medical Journal Year:2016 | Volume:18 | Issue:9 Page(s): 0-0

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Title

GRAPE SEED EXTRACT SUPPLEMENTATION AND THE EFFECTS ON THE BIOMARKERS OF OXIDATIVE STRESS AND METABOLIC PROFILES IN FEMALE VOLLEYBALL PLAYERS: A RANDOMIZED, DOUBLE-BLIND, PLACEBO-CONTROLLED CLINICAL TRIAL

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Keywords

GRAPE SEED EXTRACT

OXIDATIVE STRESS

ATHLETES

Abstract

Background: Only limited data are available for evaluating the effects of the administration of GRAPE SEED EXTRACT (GSE) on the metabolic status of female volleyball players.Objectives: This study was conducted to determine the effects of GSE administration on the metabolic status of female volleyball players.Methods: This randomized, double-blind, placebo-controlled clinical trial was performed among 40 female volleyball players. The subjects were randomly divided into two groups, with members of the test group (n=20) taking 300mgof GSE twice a day for eight weeks and members of the control group (n=20) taking a placebo pearl for the same period. Fasting blood samples were taken before and after the eight-week intervention period in order to determine the related variables.Results: Supplementation with GSE resulted in a significant rise in the plasma glutathione (GSH) level (+265.5±344.2 vs.+2.2 ±378.2mmol/L, P=0.02), as well as a significant decrease in the malondialdehyde (MDA) level (-1.4±2.0 vs. -0.2±1.2 mmol/L, P= 0.01) when compared to the placebo group. In addition, when compared to the group that received the placebo, the subjects who received GSE had significantly decreased serum insulin concentrations (-23.4±23.4 vs.+1.8 ±25.2 pmol/L, P=0.002), a decreased homeostasis model of assessment for insulin resistance (HOMA-IR) (-0.7±0.7 vs.+0.2±0.9, P=0.002), and an increased quantitative insulin sensitivity check index (QUICKI) (+0.01±0.01 vs. -0.01±0.02, P=0.03). The administration of GSE had no significant effects on creatine phosphokinase (CPK), total antioxidant capacity (TAC), nitric oxide (NO), fasting plasma glucose (FPG), and lipid concentrations when compared with the administration of the placebo. However, after controlling for baseline NO levels, age, and baseline BMI, the changes in the plasma NO concentrations were significantly different between the two groups.Conclusions: In conclusion, taking GSE for eight weeks had beneficial effects on the plasma GSH, MD Alevels, and markers of insulin metabolism of female volleyball players.

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APA: Copy

TAGHIZADEH, MOHSEN, MALEKIAN, ELAHEH, Memarzadeh, Mohammad Reza, MOHAMMADI, ALI AKBAR, & ASEMI, ZATOLLAH. (2016). GRAPE SEED EXTRACT SUPPLEMENTATION AND THE EFFECTS ON THE BIOMARKERS OF OXIDATIVE STRESS AND METABOLIC PROFILES IN FEMALE VOLLEYBALL PLAYERS: A RANDOMIZED, DOUBLE-BLIND, PLACEBO-CONTROLLED CLINICAL TRIAL. IRANIAN RED CRESCENT MEDICAL JOURNAL (IRCMJ), 18(9), 0-0. SID. https://sid.ir/paper/293514/en

Vancouver: Copy

TAGHIZADEH MOHSEN, MALEKIAN ELAHEH, Memarzadeh Mohammad Reza, MOHAMMADI ALI AKBAR, ASEMI ZATOLLAH. GRAPE SEED EXTRACT SUPPLEMENTATION AND THE EFFECTS ON THE BIOMARKERS OF OXIDATIVE STRESS AND METABOLIC PROFILES IN FEMALE VOLLEYBALL PLAYERS: A RANDOMIZED, DOUBLE-BLIND, PLACEBO-CONTROLLED CLINICAL TRIAL. IRANIAN RED CRESCENT MEDICAL JOURNAL (IRCMJ)[Internet]. 2016;18(9):0-0. Available from: https://sid.ir/paper/293514/en

IEEE: Copy

MOHSEN TAGHIZADEH, ELAHEH MALEKIAN, Mohammad Reza Memarzadeh, ALI AKBAR MOHAMMADI, and ZATOLLAH ASEMI, “GRAPE SEED EXTRACT SUPPLEMENTATION AND THE EFFECTS ON THE BIOMARKERS OF OXIDATIVE STRESS AND METABOLIC PROFILES IN FEMALE VOLLEYBALL PLAYERS: A RANDOMIZED, DOUBLE-BLIND, PLACEBO-CONTROLLED CLINICAL TRIAL,” IRANIAN RED CRESCENT MEDICAL JOURNAL (IRCMJ), vol. 18, no. 9, pp. 0–0, 2016, [Online]. Available: https://sid.ir/paper/293514/en

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