scholarly journals The Association between Green and Black Tea Consumption on Successful Aging: A Combined Analysis of the ATTICA and MEDiterranean ISlands (MEDIS) Epidemiological Studies

Molecules ◽  
2019 ◽  
Vol 24 (10) ◽  
pp. 1862 ◽  
Author(s):  
Nenad Naumovski ◽  
Alexandra Foscolou ◽  
Nathan M. D’Cunha ◽  
Stefanos Tyrovolas ◽  
Christina Chrysohoou ◽  
...  
Keyword(s):  
Green Tea ◽  
Successful Aging ◽  
Coffee Consumption ◽  
Black Tea ◽  
Epidemiological Studies ◽  
Tea Consumption ◽  
Successful Ageing ◽  
Mediterranean Islands ◽  
Combined Analysis ◽  
Green And Black Tea

Tea is one of the most-widely consumed beverages in the world with a number of different beneficial health effects, mainly ascribed to the polyphenolic content of the tea catechins. The aim of this study was to examine the consumption of green, black, or no tea, in relation to the previously validated successful ageing index (SAI; higher values “healthier” ageing) in a combined analysis of adults aged >50 years old from the ATTICA (n = 1128 adults from Athens, Greece metropolitan area) and the MEDiterranean Islands Study (MEDIS) (n = 2221 adults from various Greek island and Mani) studies. After adjusting for age, sex, smoking, and coffee consumption, green tea was positively associated with SAI (b ± SE: 0.225 ± 0.055, p < 0.001), while black tea was negatively associated with SAI (unstandardized b coefficient ± Standard error: −0.807 ± 0.054, p < 0.001). Green tea (vs black tea) consumption, had higher odds of a SAI of over 3.58 out of 10 (OR: 1.77, 95% CI: 1.38–2.28). Green tea consumption was also associated with higher levels of physical activity (p < 0.001) and reduced likelihood of hypertension (p = 0.006) compared with black tea. Two possible mechanisms are that green tea possesses high levels of catechins such as (−)-epigallocatechin 3-gallate and l-theanine compared with black tea. Therefore, the present analysis supports both the role of green tea constituents in successful ageing, as well as its role as an important component of an overall healthy diet in adults aged 50 years and over from these two epidemiological studies.

The association of animal and plant protein with successful ageing: a combined analysis of MEDIS and ATTICA epidemiological studies

2020 ◽  
pp. 1-10
Author(s):  
Alexandra Foscolou ◽  
Elena Critselis ◽  
Stefanos Tyrovolas ◽  
Christina Chrysohoou ◽  
Nenad Naumovski ◽  
...  
Keyword(s):  
Successful Aging ◽  
Protein Intake ◽  
Dietary Habits ◽  
Epidemiological Studies ◽  
Plant Protein ◽  
Successful Ageing ◽  
Cross Sectional ◽  
High Animal ◽  
Combined Analysis ◽  
Protein Rich

Abstract Objective: The aim of the present study was to investigate the differences between the consumption of plant-based v. animal-based protein-rich diets on successful ageing, as well as to identify the optimal combination of dietary protein intake for facilitating successful ageing in people aged >50 years. Design: A combined analysis was conducted in older adults of the ATTICA and MEDIS population-based cross-sectional studies. Anthropometrical, clinical and sociodemographic characteristics, lifestyle parameters, dietary habits and level of protein intake were derived through standard procedures. Successful ageing was evaluated using the validated Successful Aging Index (SAI) composed of ten health-related social, lifestyle and clinical characteristics. Setting: Athens area and twenty Greek islands. Participants: A total of 3349 Greek women and men over 50 years old. Results: Participants with high consumption of plant proteins were more likely to be male, physically active, with higher daily energy intake, higher adherence to the Mediterranean diet and higher level of SAI (P < 0·001). Participants with ‘Low animal & High plant’ and ‘High animal & High plant’ protein consumption had a 6 and 7 % higher SAI score, respectively, compared with the other participants (P < 0·001). In contrast, ‘Low animal & Low plant’ and ‘High animal & Low plant’ protein intake was negatively associated with SAI as compared to the combination of all other consumption categories (P < 0·02). Conclusions: The consumption of a plant-based protein-rich diet seems to be a beneficial nutritional choice that should be promoted and encouraged to older people since it may benefit both individual’s health and prolong successful ageing.

scholarly journals Health Benefits of Aqueous Extract of Black and Green Tea Leaves

2020 ◽  
Author(s):  
Zainab Khudhur Ahmad Al-Mahdi ◽  
Ruqaya M.J. Ewadh ◽  
Nada Khazal Kadhim Hindi
Keyword(s):  
Cardiovascular Diseases ◽  
Pathogenic Bacteria ◽  
Black Tea ◽  
Epidemiological Studies ◽  
Tea Plant ◽  
Polyphenolic Compounds ◽  
Tea Consumption ◽  
Beneficial Effects ◽  
Green Tea Leaves ◽  
Green And Black Tea

Tea, next to water, is the beverage humans consume. Drinking the beverage tea is great for joining and collecting family members and public communities since ancient times. Tea plant Camellia sinensis has been cultivated for thousands of years, and its leaves have been used for medicinal purposes. Various studies suggest that polyphenolic compounds present in green and black tea are associated with beneficial effects in prevention of cardiovascular diseases, particularly of atherosclerosis and coronary heart disease. Anti-ageing, antidiabetic and many other health beneficial effects associated with tea consumption are described. Evidence is accumulating that catechins and theaflavins, which are the main polyphenolic compounds of green and black tea, respectively, are responsible for most of the physiological effects of tea. This review describes the evidence from clinical and epidemiological studies in the prevention of chronic diseases like cancer and cardiovascular diseases and inhibits pathogenic bacteria and general health promotion associated with tea consumption.

scholarly journals Effect of Black and Green Tea on Salivary pH: a Double Blinded Cross-Over Study

2021 ◽  
Vol 24 (3) ◽  
Author(s):  
Masoomeh Shirzaiy ◽  
Zohreh Dalirsani ◽  
Javid Dehghan Haghighi
Keyword(s):  
Green Tea ◽  
Black Tea ◽  
Oral Bacteria ◽  
Significant Rise ◽  
T Test ◽  
Tea Consumption ◽  
Significant Difference ◽  
Salivary Ph ◽  
Green And Black Tea ◽  
Double Blinded

Background: Some herbal products could affect on salivary pH and prevention of dental caries. Tea consumption has inhibition effects on some oral bacteria. Objective: The aim of this study was to evaluate the effect of green and black tea on salivary pH. Material and Methods: In this double blinded cross-over trial, salivary samples of 50 healthy male students of Zahedan Faculty of Dentistry, aged 20-22 years old were collected for evaluation of salivary pH. All volunteers were asked to consume commercially black tea on the first day and then saliva samples were collected before drinking tea and immediately after drinking tea and 5 and 10 minutes after tea consumption. With replacing consumption of green tea, at the second day, saliva samples were collected again. Then the salivary pH was estimated with a digital pH-meter. Data were analyzed through independent t-test and paired samples t-test. Results: Mean salivary pH before and after green tea consumption were 7.15±0.05 and 7.56±0.09, respectively, which showed a remarkable difference (p<0.001). It was 7.14±0.05 and 7.51 ± 0.10, respectively, for black tea, with significant difference (p<0.0001). Mean salivary pH after green tea consumption was significantly higher than black tea (p= 0.006). Conclusion: Both green and black tea intake led to a significant rise in salivary pH, which was higher after green tea consumption compared to black tea. This study suggests the beneficial effects of drinking tea in providing an alkaline environment in oral cavity.   KEYWORDS Black tea; Green tea; Saliva; pH.

scholarly journals Green Tea and Coffee Consumption and All-Cause Mortality Among Persons With and Without Stroke or Myocardial Infarction

Stroke ◽  
2021 ◽  
Author(s):  
Masayuki Teramoto ◽  
Isao Muraki ◽  
Kazumasa Yamagishi ◽  
Akiko Tamakoshi ◽  
Hiroyasu Iso
Keyword(s):  
Myocardial Infarction ◽  
Green Tea ◽  
Coffee Consumption ◽  
Stroke Survivors ◽  
Inverse Association ◽  
Tea Consumption ◽  
Cox Proportional Hazard ◽  
Hazard Ratios ◽  
All Cause Mortality ◽  
History Of

Background and Purpose: The effect of green tea and coffee consumption on mortality among cardiovascular diseases survivors is unknown. We examined the association between green tea and coffee consumption and mortality among persons with and without stroke or myocardial infarction (MI). Methods: In the Japan Collaborative Cohort Study, 46 213 participants (478 stroke survivors, 1214 MI survivors, and 44 521 persons without a history of stroke or MI), aged 40 to 79 years at baseline (1988–1990), completed a lifestyle, diet, and medical history questionnaire and were followed up regarding mortality until 2009. The Cox proportional hazard model was used to calculate the multivariable hazard ratios with 95% CIs of all-cause mortality after adjusting for potential confounding factors. Results: During the 18.5-year median follow-up period, 9253 cases were documented. Green tea consumption was inversely associated with all-cause mortality among stroke or MI survivors; the multivariable hazard ratios (95% CIs) for stroke survivors were 0.73 (0.42–1.27) for 1 to 6 cups/wk, 0.65 (0.36–1.15) for 1 to 2 cups/d, 0.56 (0.34–0.92) for 3 to 4 cups/d, 0.52 (0.31–0.86) for 5 to 6 cups/d, and 0.38 (0.20–0.71) for ≥7 cups/d, compared with nondrinkers. A similar inverse association was observed for MI survivors, but not evident for those without a history of stroke or MI. Coffee consumption was inversely associated with all-cause mortality in persons without a history of stroke or MI; the multivariable hazard ratios (95% CIs) were 0.86 (0.82–0.91) for 1 to 6 cups/wk, 0.86 (0.80–0.92) for 1 cup/d, and 0.82 (0.77–0.89) for ≥2 cups/d, compared with nondrinkers. The corresponding hazard ratios (95% CIs) for MI survivors were 0.69 (0.53–0.91), 0.78 (0.55–1.10), and 0.61 (0.41–0.90). No such association was observed for stroke survivors. Conclusions: Green tea consumption can be beneficial in improving the prognosis for stroke or MI survivors, whereas coffee consumption can also be so for persons without a history of stroke or MI as well as MI survivors.

Abstract WP226: The Association of Green Tea and Coffee Consumption With Mortality From Cardiovascular Disease and All Causes Among Persons With and Without History of Stroke or Myocardial Infarction: The JACC Study

Stroke ◽  
2020 ◽  
Vol 51 (Suppl_1) ◽  
Author(s):  
Masayuki Teramoto ◽  
Isao Muraki ◽  
Kokoro Shirai ◽  
Akiko Tamakoshi ◽  
Hiroyasu Iso
Keyword(s):  
Myocardial Infarction ◽  
Cardiovascular Disease ◽  
General Population ◽  
Green Tea ◽  
Coffee Consumption ◽  
Tea Consumption ◽  
Food Frequency ◽  
All Cause Mortality ◽  
History Of

Background: Both green tea and coffee consumption have been associated with lower risks of mortality from cardiovascular disease (CVD) and all causes in general population, but little is known about those impact on persons with history of CVD. We examined the association of those consumption with these mortalities among persons with and without history of stroke or myocardial infarction in general population. Methods: The study subjects were 60,664 participants (896 stroke and 1751 myocardial infarction survivors and 58,017 persons with no history of stroke or myocardial infarction), aged 40-79 years at the baseline (1988-1990), who completed a lifestyle and medical history questionnaire including self-administered food frequency under the Japan Collaborative Cohort Study for Evaluation of Cancer Risk (JACC Study). Results: During the median follow-up of 18.5 years, a total of 12,745 (7,458 men and 5,287 women) deaths including 3,737 CVD deaths were documented. Green tea and coffee consumption were inversely associated with CVD and all-cause mortality among myocardial infarction survivors as well as persons without history of stroke or myocardial infarction. After adjustment for known cardiovascular risk factors, the lower risks of mortality from CVD and all-causes associated with frequent green tea consumption (5-6 and ≥7 cups/day) or coffee consumption (≥2 cups/day) remained statistical. Conclusions: Both green tea and coffee consumption were inversely associated with risks of CVD and all-cause mortality among myocardial infarction survivors and persons without history of stroke or myocardial infarction.

Coffee, Black Tea, and Green Tea Consumption in Relation to Plasma Metabolites in an Asian Population

2020 ◽  
Vol 64 (24) ◽  
pp. 2000527 ◽  
Author(s):  
Wei Jie Seow ◽  
Dorrain Yanwen Low ◽  
Wen‐Chi Pan ◽  
Samuel H. Gunther ◽  
Xueling Sim ◽  
...  
Keyword(s):  
Green Tea ◽  
Asian Population ◽  
Black Tea ◽  
Plasma Metabolites ◽  
Tea Consumption

Effects of black and green tea consumption on blood glucose levels in non-obese elderly men and women from Mediterranean Islands (MEDIS epidemiological study)

2008 ◽  
Vol 47 (1) ◽  
pp. 10-16 ◽  
Author(s):  
Evangelos Polychronopoulos ◽  
Akis Zeimbekis ◽  
Christina-Maria Kastorini ◽  
Natassa Papairakleous ◽  
Ioanna Vlachou ◽  
...  
Keyword(s):  
Blood Glucose ◽  
Epidemiological Study ◽  
Green Tea ◽  
Tea Consumption ◽  
Mediterranean Islands ◽  
Elderly Men ◽  
Men And Women ◽  
Glucose Levels ◽  
Blood Glucose Levels

scholarly journals Tea Flavonoids and Risk of Cardiovascular and All-Cause Mortality: A Systematic Review and Meta-Analysis

2020 ◽  
Vol 79 (OCE2) ◽  
Author(s):  
Ding Ding Wang ◽  
Aedin Cassidy ◽  
Mario G. Ferruzzi ◽  
Paul Jacques ◽  
Elizabeth Johnson ◽  
...  
Keyword(s):  
Systematic Review ◽  
Cohort Studies ◽  
Green Tea ◽  
Lower Risk ◽  
Meta Analysis ◽  
Black Tea ◽  
Tea Consumption ◽  
Prospective Cohort Studies ◽  
All Cause Mortality ◽  
Meta Regression

AbstractThere is increasing evidence that both black and green tea are beneficial for prevention of cardiovascular disease (CVD). We conducted a systematic review and meta-analysis evaluating the effects of tea flavonoids on cardiovascular (CVD) and all-cause mortality outcomes.Searches across five databases including PubMed and Embase were conducted through November 2018 to identify randomized controlled trials (RCTs) and prospective cohort studies reporting cardiovascular and all-cause mortality outcomes. Two investigators independently conducted abstract and full-text screenings, data extractions, and risk of bias (ROB) assessments using the Nutrition Evidence Library Bias Assessment Tool (NEL BAT). Mixed-effects dose-response meta-regression and standard random-effects meta-analyses for outcomes with ≥ 4 studies were performed. 0 RCTs and 38 prospective cohort studies were included in the systematic review. NEL BAT scores ranged from 0–15 (0 being the lowest risk). Our linear meta-regression model showed that each cup increase in daily tea consumption (about 280 mg and 338 mg of total flavonoids for black and green tea, respectively) was associated with 3–4% lower risk of CVD mortality (predicted adjusted RR = 0.96; CI 0.93–0.99 for green tea and RR = 0.97; CI 0.94–0.99 for black tea). Furthermore, eachcup increase in daily tea consumption was associated a 2% lower risk of all-cause mortality (predicted adjusted relative risk (RR) = 0.98; 95% CI 0.97–0.99 for black tea and RR = 0.98; CI 0.96–0.99 for green tea, respectively). Two studies reported multivariable Cox regression analysis results for the relationship between black tea intake and risks of all-cause mortality outcomes. The results from these two studies were combined with our linear meta-regression result in a random-effects model meta-analysis and showed that each cup increase in daily black tea consumption was associated with an average of 3% lower risk of all-cause mortality (pooled adjusted RR = 0.97; 95% CI 0.87- 1.00) with large heterogeneity (I2 = 81.4%; p = 0.005). Current evidence indicates that increased tea consumption may reduce cardiovascular and all-cause mortality in a dose-response manner. This systematic review was registered on PROSPERO.

scholarly journals Associations between Green Tea Consumption and Coffee Consumption and the Prevalence of Coronary Artery Disease

2020 ◽  
Vol 66 (3) ◽  
pp. 237-245
Author(s):  
Yoshimi KISHIMOTO ◽  
Emi SAITA ◽  
Chie TAGUCHI ◽  
Masayuki AOYAMA ◽  
Yukinori IKEGAMI ◽  
...  
Keyword(s):  
Coronary Artery Disease ◽  
Coronary Artery ◽  
Green Tea ◽  
Coffee Consumption ◽  
Tea Consumption ◽  
Artery Disease
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