Green tea is manufactured from the leaves of the plant Camellia sinensis Theaceae and has been regarded to possess anti-cancer, anti-obesity, anti-atherosclerotic, anti-diabetic, anti-bacterial, and anti-viral effects. Many of the beneficial effects of green tea are related to the activities of (-)-epigallocatechin gallate (EGCG), a major component of green tea catechins. For about 20 years, we have engaged in studies to reveal the biological activities and action mechanisms of green tea and EGCG. This review summarizes several lines of evidence to indicate the health-promoting properties of green tea mainly based on our own experimental findings.
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http://dx.doi.org/10.2183/pjab.88.88 | DOI Listing |
Food Chem
December 2024
Tecnológico Nacional de México, Instituto Tecnológico de Tepic; Laboratorio Integral de Investigación en Alimentos, Av. Tecnológico #2595 Col. Frac. Lagos del Country, C.P., Tepic 63175, Nayarit, Mexico. Electronic address:
Kombucha is a fermented beverage with health effects, made mainly from green tea and black tea; however, it can also be made from other leaves such as those of jackfruit and soursop, which are not used even though they have been reported to have positive health effects. Due to the above, in this work "kombucha" beverages based on jackfruit and/or soursop leaves were developed and analyzed to take advantage of these by-products. It was found that fermentation produced significant changes, being the optimal kombucha formulation green tea with soursop leaves (GTKS), obtaining a higher content of antioxidant compounds (mainly catechin, rutin and shikimic acid) and greater ferric reducing antioxidant power (FRAP) (1.
View Article and Find Full Text PDFGels
December 2024
Department for Pharmaceutical Research and Development, Institute for Medicinal Plant Research "Dr. Josif Pančić", Tadeuša Koscuška 1, 11000 Belgrade, Serbia.
Natural deep eutectic solvents (NaDES) were employed for the extraction of bilberry and green tea leaves. This study explored the incorporation of these NaDES extracts into various carrier systems: hydrogels, emulsions, and emulgels stabilized with hydroxyethyl cellulose or xanthan gum. The results demonstrated that, when combined with synthetic UV filters, the NaDES extracts significantly enhanced the SPF and improved the antioxidant properties of the formulation.
View Article and Find Full Text PDFGels
November 2024
Dental Research Division, Guarulhos University, Guarulhos 07023-070, SP, Brazil.
Evidence has shown the clear positive effects of nature-based products on biofilm control and improved gingival health. However, most studies have used in vitro models, have tested single natural components, or have not evaluated proteomic changes after treatment. This double-blind, parallel, randomized, and controlled clinical trial evaluated the benefits of a nature-based gel in controlling gingival inflammation and its effects on the proteomic gingival crevicular fluid (GCF) profile.
View Article and Find Full Text PDFDent J (Basel)
December 2024
Department of Surgery, Medicine, Dentistry and Morphological Sciences with Transplant Surgery, Oncology and Regenerative Medicine Relevance (CHIMOMO), University of Modena and Reggio Emilia, 41124 Modena, Italy.
: Potential adverse effects and pH-related effectiveness of bleaching agents have raised some concerns. The aim of this study was to compare three bleaching agents containing hydrogen peroxide (HP) and carbamide peroxide (CP) in terms of whitening effectiveness, pH variation, and changes in enamel surface roughness. : After controlled staining with a black tea solution, 42 human enamel specimens underwent bleaching treatment using the following agents: HP 40%; HP 35%; CP 16%.
View Article and Find Full Text PDFBackground Sickle cell disease (SCD) is a hereditary disorder marked by abnormal hemoglobin (HbS), leading to chronic hemolytic anemia, vaso-occlusive crises (VOCs), and multi-organ complications. In India, the prevalence of SCD is highest among tribal populations in states like Madhya Pradesh, Maharashtra, Odisha, and Assam, with the disease burden exacerbated by limited healthcare access, especially in rural regions. This study provides a comprehensive analysis of the demographic profile, clinical features, and treatment patterns of SCD patients at a tertiary healthcare center in Upper Assam, where the prevalence of SCD is high among the tea tribe communities.
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