Effect of green tea (Camellia sinensis) consumption on the components of metabolic syndrome in elderly

Senger, Ana Elisa Vieira; Schwanke, Carla Helena Augustin; Gomes, Ivani Soleira; Gottlieb, Maria Gabriela Valle

doi:10.1007/s12603-012-0081-5

Cited by 57 publications

(52 citation statements)

References 20 publications

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“…With regards to fasting glucose and/or insulin resistance, clinical studies of polyphenol supplementation have reported controversial results. Neither green tea nor EGCG treatment in patients with MetS had an effect on insulin sensitivity, secretion or glucose tolerance and on insulin resistance in the majority of clinical trials, apart from those conducted by Vieira Senger et al (25) and Belcaro et al (27). By contrast, cocoa products were reported to have a beneficial effect on glycaemia.…”

Section: Blood Glucose and Insulin Resistancementioning

confidence: 97%

“…Furthermore, no significant effect was observed for HDL cholesterol, although Basu et al (22) reported an upwards trend. Other studies found no improvement in lipid profile using green tea (21,25,28) and cocoa (31). However, the combination of cocoa polyphenols with soy isoflavones and myoinositol was efficient on triglycerides level (34).…”

Section: Blood Pressure: Diastolic and Systolicmentioning

confidence: 98%

“…As reported in Table , numerous clinical interventions have investigated the effects of polyphenol‐rich intake on anthropometric variables, weight, body mass index (BMI), waist circumference and body fat mass in MetS subjects. Clearly, clinical studies pointed towards significant beneficial effects of green tea on BMI and waist circumference . In a study by Basu et al , 35 MetS subjects were randomly assigned to three groups : control, green tea (beverage) and green tea extract given for 8 weeks.…”

Section: Effects Of Polyphenols and Associated Mechanisms On The Mainmentioning

confidence: 99%

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Effects of dietary polyphenols on metabolic syndrome features in humans: a systematic review

2016

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SummaryDietary polyphenols constitute a large family of bioactive substances potential beneficial effect on metabolic syndrome (MetS). This review summarizes the results of clinical studies on patients with MetS involving the chronic supplementation of a polyphenol-rich diet, foods, extracts or with single phenolics on the features of MetS (obesity, dyslipidemia, blood pressure and glycaemia) and associated complications (oxidative stress and inflammation). Polyphenols were shown to be efficient, especially at higher doses, and there were no specific foods or extracts able to alleviate all the features of MetS. Green tea, however, significantly reduced body mass index and waist circumference and improved lipid metabolism. Cocoa supplementation reduced blood pressure and blood glucose. Soy isoflavones, citrus products, hesperidin and quercetin improved lipid metabolism, whereas cinnamon reduced blood glucose. In numerous clinical studies, antioxidative and anti-inflammatory effects were not significant after polyphenol supplementation in patients with MetS. However, some trials pointed towards an improvement of endothelial function in patients supplemented with cocoa, anthocyanin-rich berries, hesperidin or resveratrol. Therefore, diets rich in polyphenols, such as the Mediterranean diet, which promote the consumption of diverse polyphenol-rich products could be an effective nutritional strategy to improve the health of patients with MetS.

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Section: Blood Glucose and Insulin Resistancementioning

confidence: 97%

Section: Blood Pressure: Diastolic and Systolicmentioning

confidence: 98%

Section: Effects Of Polyphenols and Associated Mechanisms On The Mainmentioning

confidence: 99%

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Effects of dietary polyphenols on metabolic syndrome features in humans: a systematic review

2016

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“…The most effective plants on the fasting blood glocuse (FBS) was seen by green tea (with doses of 150 and 1,000 mg/day; Diepvens et al, , Vieira Senger et al, ), H. sabdariffa (with dose of 1,000 mg/day; Kuriyan et al, ), puerh tea (with dose of 10 g/day; Chu et al, ), I. gabonensis (with doses of 150 and 300 mg/day; Ngondi et al, , Ross, ), P. vulgaris (with dose of 250 mg/day; Hartman et al, ), N. sativa (with dose of 1,600 mg/day; Latiff et al, ), chia (Nieman et al, ), E. cava (with doses of 72 and 144 mg/day; Shin et al, ), cinnamon (with doses of 550 and 3, 000 mg/day; Vafa et al, , Gupta Jain et al, ), carob (with dose of 4.45 g/day; Banuls et al, ), brown rice (Bui et al, ), a combination of ephedra and caffeine (Hackman et al, ), a combination of C. quadrangularis and I. gabonensis , a combination of coptidis , mori , and Puerariae lobatae (Gao et al, ), and a combination of S. indicus and G. mangostana (Stern, Peerson, Mishra, Mathukumalli, & Konda, ). Other plants that have been affected by decreased FBS are detailed in Table S6.…”

Section: Discussionmentioning

confidence: 99%

Effect of the herbal medicines in obesity and metabolic syndrome: A systematic review and meta‐analysis of clinical trials

Payab

Hasani‐Ranjbar

Shahbal

et al. 2019

Phytotherapy Research

104

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Obesity is a medical situation in which excess body fat has gathered because of imbalance between energy intake and energy expenditure. In spite of the fact that the variety of studies are available for obesity treatment and management, its “globesity” still remains a big challenge all over the world. The current systematic review and meta‐analysis aimed to evaluate the efficacy, safety, and mechanisms of effective herbal medicines in the management and treatment of obesity and metabolic syndrome in human. We systematically searched all relevant clinical trials via Web of Science, Scopus, PubMed, and the Cochrane database to assess the effects of raw or refined products derived from plants or parts of plants on obesity and metabolic syndrome in overweight and obesity adult subjects. All studies conducted by the end of May 2019 were considered in the systematic review. Data were extracted independently by two experts. The quality assessment was assessed using Consolidated Standards of Reporting Trials checklist. The main outcomes were anthropometric indices and metabolic syndrome components. Pooled effect of herbal medicines on obesity and metabolic syndrome were presented as standardized mean difference (SMD) and 95% confidence interval (CI). A total of 279 relevant clinical trials were included. Herbals containing green tea, Phaseolus vulgaris, Garcinia cambogia, Nigella sativa, puerh tea, Irvingia gabonensis, and Caralluma fimbriata and their active ingredients were found to be effective in the management of obesity and metabolic syndrome. In addition, C. fimbriata, flaxseed, spinach, and fenugreek were able to reduce appetite. Meta‐analysis showed that intake of green tea resulted in a significant improvement in weight ([SMD]: −0.75 [−1.18, −0.319]), body mass index ([SMD]: −1.2 [−1.82, −0.57]), waist circumference ([SMD]: −1.71 [−2.66, −0.77]), hip circumference ([SMD]: −0.42 [−1.02, −0.19]), and total cholesterol, ([SMD]: −0.43 [−0.77, −0.09]). In addition, the intake of P. vulgaris and N. sativa resulted in a significant improvement in weight ([SMD]: −0.88, 95 % CI: [−1.13, −0.63]) and triglyceride ([SMD]: −1.67, 95 % CI: [−2.54, −0.79]), respectively. High quality trials are still needed to firmly establish the clinical efficacy of the plants in obesity and metabolic syndrome.

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“…A significant part of this tea is prepared with leaves of the shrub Camellia sinensis in the form of green tea, oolong or black tea, especially appreciated in China and Japan. Studies conducted in these countries show that green tea contains a wide array of organic compounds, such as polyphenols and catechin (which can potentially reduce the risk of cardiovascular and neurodegenerative disorders), in addition to substances with hypoglycemiant and anticancer properties [2][3][4][5] .…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the anti-inflammatory and analgesic effects of green tea (Camellia sinensis) in mice

et al. 2015

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PURPOSE:To evaluate the anti-inflammatory and analgesic effects of green tea (Camellia sinensis) in mice. METHODS:The anti-inflammatory effect of alcoholic extracts of green tea (AE) was evaluated in a cell migration assay with four groups of six Swiss mice receiving 0.07g/Kg or 0.14g/Kg EA (treatment groups), saline (negative control) or 10mg/Kg indomethacin (positive control) by gavage. One hour later 300 µg carrageen an was administered intraperitoneally or subcutaneously. The analgesic effect was evaluated using four groups of six animals receiving 0.07g/Kg or 0.14g/Kg EA, saline or 10mg/Kg indomethacin subcutaneously, followed 30 minutes later by 1% acetic acid. RESULTS:When administered subcutaneously at either dose (0.07g/Kg and 0.14g/Kg), AE inhibited carrageenan-induced cell migration (p<0.05). However, when administered by gavage, only the latter (0.14 g/Kg) was efficient (p<0.05). AE at both doses (0.07g/ Kg and 0.14g/Kg) inhibited abdominal contortions (p<0.05), but the effect was not dose-dependent. CONCLUSION:Green tea was shown to have analgesic and anti-inflammatory properties and may constitute a natural treatment option in chronic inflammatory disorders.

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Effect of green tea (Camellia sinensis) consumption on the components of metabolic syndrome in elderly

Cited by 57 publications

References 20 publications

Effects of dietary polyphenols on metabolic syndrome features in humans: a systematic review

Effects of dietary polyphenols on metabolic syndrome features in humans: a systematic review

Effect of the herbal medicines in obesity and metabolic syndrome: A systematic review and meta‐analysis of clinical trials

Evaluation of the anti-inflammatory and analgesic effects of green tea (Camellia sinensis) in mice

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