The Effect of Green Tea and Sour Tea (<i>Hibiscus sabdariffa</i>L.) Supplementation on Oxidative Stress and Muscle Damage in Athletes

Hadi, Amir; Pourmasoumi, Makan; Kafeshani, Marzieh; Karimian, Jahangir; Maracy, Mohammad Reza; Entezari, Mohammad Hasan

doi:10.1080/19390211.2016.1237400

Cited by 57 publications

(68 citation statements)

References 26 publications

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“…They also induce phase II in enzymes and antioxidants, such as glutathione and S-transferase [8]. Tea extracts, especially ethanol extracts, are components of supplements and nutritional additives [9], which also contain other ingredients, such as unsaturated fatty acids, mineral components and vitamins. Moreover, such products often contain active forms of thiamine, which is used to treat various ailments, e.g., mild vitamin B1 deficiencies [10,11], or when it is necessary to apply parenteral hyperalimentation [12].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Thiamine Concentration on the Antioxidative Activity Indices in Tea Extracts

et al. 2019

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The aim of the study was to determine correlations between the concentration of thiamine in systems and indicators of the antioxidative activity of ethanol tea extracts in the presence of soybean oil. Variability of the thiamine form was assumed by comparison of the influence of thiamine hydrochloride or thiamine pyrophosphate and fermentation of ethanol tea extracts. The study provides practical knowledge about the antioxidative activity of ethanol tea extracts in products containing fat and thiamine. The study showed that all tea extracts exhibited higher antioxidative activity in the presence of thiamine amounts of 0.1 and 0.8 mg/100 g. The antioxidative activity of ethanol tea extracts was significantly reduced when the concentrations were higher than the natural level for foods (over 1.0 mg/100 g). The systems containing white tea extract were the most vulnerable, whereas those with black tea were the least vulnerable. The presence of thiamine pyrophosphate in the system was more strongly correlated with reduced activity of the extracts than the presence of thiamine hydrochloride.

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Section: Introductionmentioning

confidence: 99%

The Effect of Thiamine Concentration on the Antioxidative Activity Indices in Tea Extracts

et al. 2019

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“…This kind of tea is popularly consumed as a healthy beverage in many parts of the world (Kafeshani et al, ). Due to its high content of polyphenolic components, especially catechin, epicatechin gallate, epigallocatechin‐3‐gallate, and epigallocatechin, green tea is utilized as a folk medicine in the treatment of various metabolic disorders including obesity, hypertension, diabetes, and cardiovascular diseases (Bøhn, Ward, Hodgson, & Croft, ; Hadi et al, ). Clinical trials that tried to evaluate the precise effects of green tea supplementation regarding the NAFLD have provided paradoxical results, and its optimal role in the clinical management of this disease has not been fully established (Hussain, Habib Ur, & Akhtar, ; Pezeshki, Safi, Feizi, Askari, & Karami, ; Tabatabaee et al, ).…”

Section: Introductionmentioning

confidence: 99%

Green tea as a safe alternative approach for nonalcoholic fatty liver treatment: A systematic review and meta‐analysis of clinical trials

Mansour-Ghanaei

Hadi

Pourmasoumi

et al. 2018

Phytotherapy Research

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This study aimed to evaluate the efficacy of green tea supplementation on nonalcoholic fatty liver disease treatment. Electronic databases, including PubMed, Scopus, Web of Science, and Google Scholar, were systematically searched up to October 30, 2017, to identify eligible trials based on the inclusion criteria. The effect size was presented as mean difference with 95% confidence intervals (CI). The meta-analysis of data from four studies indicated significant effects of green tea supplementation in altering alanine aminotransferases (-12.81 U/L; 95% CI: -18.17 to -7.45) and aspartate aminotransferases (-10.91 U/L; 95% CI: -19.66 to -2.17) blood concentrations. Likewise, a favorable effect of green tea administration was observed on body mass index (-2.08 kg/cm ; 95% CI: -2.81 to -1.36), triacylglycerol (-31.87 mg/dl; 95% CI: -40.62 to -23.12), total cholesterol (-27.57 mg/dl; 95% CI: -36.17 to -18.98), and low-density lipoprotein cholesterol (-14.15 mg/dl; 95% CI: -23.69 to -4.60), whereas no significant effect was detected on high-density lipoprotein cholesterol concentrations (7.41 mg/dl; 95% CI: -1.49 to 16.30) and homeostasis model assessment of insulin resistance (-4.06; 95% CI: -10.22 to 2.09). This systematic review and meta-analysis of available trials suggests that there are potential benefits of green tea supplementation on nonalcoholic fatty liver disease.

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“…However, these findings provided a summary for promising effect of sour tea on CVD metabolic risk factors. There was lack of adequate information from clinical studies on other CVD risk factors, which could be modulated by sour tea such as body weight (Chang et al, ) and oxidative stress (Hadi et al, ). Sour tea has bioactive compounds such as organic acids, anthocyanins, and flavonoids, which have been reported to be responsible for its antioxidant and anti‐inflammatory activities (Da‐Costa‐Rocha, Bonnlaender, Sievers, Pischel, & Heinrich, ; Formagio et al, ).…”

Section: Discussionmentioning

confidence: 99%

“…Traditionally, sour tea was conventionally prescribed to control hypertension ((Serban et al, ). Moreover, recent studies have also shown that sour tea has beneficial effects on glucose status (Mozaffari‐Khosravi, Ahadi, & Tafti, ), oxidative stress (Hadi et al, ) and lipid profile (Mozaffari‐Khosravi, Jalali‐Khanabadi, Afkhami‐Ardekani, & Fatehi, ). The lipid‐lowering effects of sour tea have been investigated by various scholars.…”

Section: Introductionmentioning

confidence: 99%

The efficacy of sour tea (Hibiscus sabdariffa L.) on selected cardiovascular disease risk factors: A systematic review and meta‐analysis of randomized clinical trials

Boushehri

Karimbeiki

Ghasempour

et al. 2020

Phytotherapy Research

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This study sought to summarize clinical evidence of sour tea (Hibiscus sabdariffa L.) administration on cardiovascular disease risk factors. PubMed, Scopus, Institute for Scientific Information Web of Science, and Google Scholar were systematically searched from inception to June 2019 to identify randomized clinical trials, which assessed the effect of sour tea consumption on lipid profiles, fasting plasma glucose, and blood pressure in adult populations. Mean and standard deviation for each parameter were extracted to calculate effect size. Cochrane Collaboration tools were used to evaluate risk of bias assessment. A total of seven randomized clinical trials consisting 362 participants were included in the meta-analysis. Pooled effect size demonstrated that sour tea consumption significantly reduces fasting plasma glucose (−3.67 mg/dl, 95% confidence interval, CI [−7.07, −0.27]; I 2 = 37%), systolic blood pressure (−4.71 mmHg, 95% CI [−7.87, −1.55]; I 2 = 53%), and diastolic blood pressure (−4.08 mmHg, 95% CI [−6.48, −1.67]; I 2 = 14%). Although no significant effect was observed on triacylglycerol, total cholesterol, and high-density lipoprotein cholesterolfollowing sour tea consumption, a trend toward a significant reduction was found in low-density lipoprotein cholesterol serum concentrations (p = 0.08). This systematic

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The Effect of Green Tea and Sour Tea (Hibiscus sabdariffaL.) Supplementation on Oxidative Stress and Muscle Damage in Athletes

Abstract: GTE and STE supplementation have beneficial effects on oxidative stress status in male athletes. However, both kinds of tea extract did not affect muscle damage status.

Cited by 57 publications

References 26 publications

The Effect of Thiamine Concentration on the Antioxidative Activity Indices in Tea Extracts

The Effect of Thiamine Concentration on the Antioxidative Activity Indices in Tea Extracts

Green tea as a safe alternative approach for nonalcoholic fatty liver treatment: A systematic review and meta‐analysis of clinical trials

The efficacy of sour tea (Hibiscus sabdariffa L.) on selected cardiovascular disease risk factors: A systematic review and meta‐analysis of randomized clinical trials

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