An Update on the Health Benefits of Green Tea

Reygaert, Wanda

doi:10.3390/beverages3010006

Cited by 80 publications

(63 citation statements)

References 103 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It was not a surprise that all samples were specially rich in total catechins as these compounds are the major phenolic group in tea infusions, accounting for 40% of total water-soluble solids in tea infusions [4]. e content of total catechins was higher than the content of total phenols, and although this behavior is very rare, it has been reported previously in some legumes by Xu and Chang [27] and Zia-Ul-Haq et al [28].…”

Section: Nutraceutical Propertiesmentioning

confidence: 58%

“…Black tea is produced from fully fermented mature leaves; the enzyme is allowed to act in a way that the leaves are fully fermented to give aroma and color. Oolong tea is produced from partially fermented mature leaves and is allotted limited time of oxidation and is thus less fermented than black tea [2][3][4]. In the production of red tea (Pu-erh tea), the dried green tea leaves are artificially postfermented with microorganisms for several months to one year to produce ripened Pu-erh tea [5].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Physicochemical Parameters, Mineral Composition, and Nutraceutical Properties of Ready-to-Drink Flavored-Colored Commercial Teas

Flores-Martínez

Urías-Orona

Hernández-García³

et al. 2018

Journal of Chemistry

View full text Add to dashboard Cite

e physicochemical parameters, mineral composition, and nutraceutical properties of ready-to-drink flavored-colored commercial teas were analyzed in the present study. e pH of samples was slightly acidic (3.72 to 4.11), titratable acidity was low (0.092 to 0.174%), and color parameters were wide variable (pink, yellow, brown, and red assays. e levels of sodium reported in labels of all samples were lower than data obtained in our analysis. Also the levels observed for total phenols in blueberry-, citrus-, and rose petal-flavored teas were lower than our analysis, but total phenols of lemon-, peach-, and sangria-flavored teas were higher than the content reported in their labels. e results obtained in the present work give information to consumers for choosing flavored-colored ready-to-drink tea based on the physicochemical, nutritional, and nutraceutical properties.

show abstract

Section: Nutraceutical Propertiesmentioning

confidence: 58%

Section: Introductionmentioning

confidence: 99%

Physicochemical Parameters, Mineral Composition, and Nutraceutical Properties of Ready-to-Drink Flavored-Colored Commercial Teas

Flores-Martínez

Urías-Orona

Hernández-García³

et al. 2018

Journal of Chemistry

View full text Add to dashboard Cite

show abstract

“…Thus, both green tea infusion and epicatechin have potent antiinflammatory effects. The anti-inflammatory, as well as the antioxidant effects of green tea infusion, may be attributed to its constituting epicatechin, other catechins, gallic acid and caffeine 61,62,63,64 .…”

Section: Fig 10: a Photomicrograph Of Heart Section Of Dox-administementioning

confidence: 99%

Untitled

2019

IJPSR

View full text Add to dashboard Cite

This study aims to assess the preventive effects of green tea infusion and epicatechin on doxorubicin (Dox)-induced kidney and heart injuries and oxidative stress in male Wistar rats. The male Wistar rats administered Dox at an intraperitoneal dose of 4 mg/kg body weight (b.w.)/ week were orally treated with green tea infusion (200 mg/kg b.w.) and epicatechin (25 mg/kg b.w.) every other day for 6 weeks. The treatments of Dox-administered rats with green tea infusion and epicatechin resulted in a significant decrease in the elevated serum creatinine, urea and uric acid levels reflecting an improvement in kidney function. Similarly, the elevated serum CK-MB, LDH and AST activities were significantly ameliorated as a result of treatments of Dox-administered rats, thereby manifesting an amendment of heart function. The treatments also led to the prevention of the elevated lipid peroxidation and amelioration of the lowered GPx and GST activities as well as GSH content in kidney and heart. However, the SOD activity was not significantly altered in kidney and heart as a result of treatment of Dox-administered rats with green tea infusion and epicatechin. Also, the treatments remarkably improved Dox-induced deleterious histological alterations and inflammatory changes in kidney and heart in association with a significant decrease in serum TNF-α and an increase in serum IL-4 level. In conclusion, the green tea infusion and epicatechin may have chemopreventive potentials against Dox-induced nephrocardio-toxicity via suppression of oxidative stress, enhancement of antioxidant defense system and attenuation of inflammatory effects. INTRODUCTION: Doxorubicin (Dox) is a traditional chemotherapeutic agent used for the treatment of a wide variety of cancers 1 .

show abstract

“…ere are studies showing the antiproliferative, antimutagenic, antioxidant, antibacterial, antiviral, anticancer, and chemopreventive effects of green tea [2,3]. From previous studies, it is found that epigallocatechin-3-gallate (EGCG) (Figure 1) is the most bioactive and abundant polyphenolic compound in green tea [3,4].…”

Section: Introductionmentioning

confidence: 99%

Induction of Endoplasmic Reticulum Stress Pathway by Green Tea Epigallocatechin-3-Gallate (EGCG) in Colorectal Cancer Cells: Activation of PERK/p-eIF2α/ATF4 and IRE1α

Nesran

Shafie

Ishak

et al. 2019

BioMed Research International

View full text Add to dashboard Cite

Epigallocatechin-3-gallate (EGCG) is the most abundant bioactive polyphenolic compound among the green tea constituents and has been identified as a potential anticancer agent in colorectal cancer (CRC) studies. This study was aimed to determine the mechanism of actions of EGCG when targeting the endoplasmic reticulum (ER) stress pathway in CRC. The MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide) assay was performed on HT-29 cell line and normal cell line (3T3) to determine the EGCG toxicity. Next, western blot was done to observe the expression of the related proteins for the ER stress pathway. The Caspase 3/7 assay was performed to determine the apoptosis induced by EGCG. The results demonstrated that EGCG treatment was toxic to the HT-29 cell line. EGCG induced ER stress in HT-29 by upregulating immunoglobulin-binding (BiP), PKR-like endoplasmic reticulum kinase (PERK), phosphorylation of eukaryotic initiation factor 2 alpha subunit (eIF2α), activating transcription 4 (ATF4), and inositol-requiring kinase 1 alpha (IRE1α). Apoptosis was induced in HT-29 cells after the EGCG treatment, as shown by the Caspase 3/7 activity. This study indicates that green tea EGCG has the potential to inhibit colorectal cancer cells through the induction of ER stress.

show abstract

An Update on the Health Benefits of Green Tea

Cited by 80 publications

References 103 publications

Physicochemical Parameters, Mineral Composition, and Nutraceutical Properties of Ready-to-Drink Flavored-Colored Commercial Teas

Physicochemical Parameters, Mineral Composition, and Nutraceutical Properties of Ready-to-Drink Flavored-Colored Commercial Teas

Untitled

Induction of Endoplasmic Reticulum Stress Pathway by Green Tea Epigallocatechin-3-Gallate (EGCG) in Colorectal Cancer Cells: Activation of PERK/p-eIF2α/ATF4 and IRE1α

Contact Info

Product

Resources

About