The antioxidant effects of green tea reduces blood pressure and sympathoexcitation in an experimental model of hypertension
Conclusions: Taken together, short-term green tea treatment improved cardiovascular function in a hypertension model characterized by sympathoexcitation, which may be because of its antioxidant properties. (Source: Journal of Hypertension)
Source: Journal of Hypertension - December 23, 2016 Category: Cardiology Tags: ORIGINAL PAPERS: Pathophysiological aspects Source Type: research
Nanoencapsulation of green tea catechins by electrospraying technique and its effect on controlled release and in-vitro permeability
Publication date: April 2017 Source:Journal of Food Engineering, Volume 199 Author(s): J. Anu Bhushani, Nawneet Kumar Kurrey, C. Anandharamakrishnan Zein, a biocompatible, biodegradable macromolecule was employed for nanoencapsulation of green tea catechins by electrospraying technique. For this, the electrohydrodynamic behavior of zein solution was studied and the effective electrospraying concentration of zein was optimized. Later, the influence of nanoencapsulation and core-to-wall ratio on the gastrointestinal stability and permeability of green tea catechins were investigated. Among the various concentrations of ...
Source: Journal of Food Engineering - December 21, 2016 Category: Food Science Source Type: research
Effects of peppermint tea consumption on the activities of CYP1A2, CYP2A6, Xanthine Oxidase, N-acetyltranferase-2 and UDP-glucuronosyltransferases-1A1/1A6 in healthy volunteers.
Abstract
Peppermint leaves are widely used for the symptomatic treatment of digestive disorders. Previous studies have shown significant effects of its natural products on human enzyme activity; however, there is no study available concerning the effects of peppermint tea on metabolizing enzymes in humans. Aim of the present study was to investigate the effect of peppermint tea on CYP1A2, CYP2A6, Xanthine Oxidase (XO), N-acetyltranferase-2 (NAT2) and UDP-glucuronosyltransferases-1A1/1A6 (UGT1A1/1A6) activities in healthy subjects. Four males and five females consumed peppermint tea (2 grams of dry leaves/2...
Source: Food and Chemical Toxicology - December 19, 2016 Category: Food Science Authors: Begas E, Tsioutsiouliti A, Kouvaras E, Haroutounian SA, Kasiotis KM, Kouretas D, Asprodini E Tags: Food Chem Toxicol Source Type: research
41 Antidiabetic activity of tea polysaccharides in mice with alloxan-induced diabetes
ConclusionsThe results of the present study indicate that TPS may be a potential pharmaceutical agent for the treatment of diabetes as it normalized blood glucose and lipid levels in mice with alloxan-induced diabetes. (Source: Journal of Investigative Medicine)
Source: Journal of Investigative Medicine - December 18, 2016 Category: Research Authors: Liu, Y., Li, S., Cheng, Y., Li, C., Wang, D., Yan, G. Tags: Natural Medicines Source Type: research
Mechanism of Taiwan Mingjian Oolong Tea to Inhibit Isoproterenol-Induced Hypertrophy and Apoptosis in Cardiomyoblasts.
This study investigates the cardio-protective effect of Nos. 1 and 5 extracts from Taiwan Mingjian Oolong Tea on H9c2 cardiomyoblast cells treated with isoproterenol (ISO). Treatment with Nos. 1 and 5 extracts increased cell viability and blocked apoptosis in ISO exposed H9c2 cells. Moreover, Nos. 1 and 5 extracts blocked hypertrophy markers like G[Formula: see text]s, calcineurin, NFATc3, and BNP, thereby increasing cell proliferation markers -PI3K and AKT in a dose dependent manner. In contrast, apoptotic proteins, such as caspase-3 and cytochrome c were decreased in H9c2 cells treated with Nos. 1 and 5 extracts. We ...
Source: The American Journal of Chinese Medicine - December 16, 2016 Category: Complementary Medicine Authors: Yeh YL, Tsai HI, Cheng SM, Pai P, Ho TJ, Chen RJ, Lai CH, Huang PJ, Padma VV, Huang CY Tags: Am J Chin Med Source Type: research
Molecules, Vol. 21, Pages 1728: Simultaneous Qualitation and Quantitation of Chlorogenic Acids in Kuding Tea Using Ultra-High-Performance Liquid Chromatography–Diode Array Detection Coupled with Linear Ion Trap–Orbitrap Mass Spectrometer
Kuding tea, the leaves of Ilex Kudingcha C.J. Tseng, has been applied for treating obesity, hypertension, cardiovascular disease, hyperlipidemia, and so on. The chlorogenic acids (CGAs) in Kuding tea have shown excellent antioxidative, antiobesity, anti-atherosclerotic and anticancer activities. Nevertheless, the chemical profiles of CGAs in Kuding tea have not been comprehensively studied yet, which hinders further quality control. In the present study, a sensitive ultra-high-performance liquid chromatography-diode array detection coupled with a linear ion trap-Orbitrap (UHPLC-DAD-LTQ-Orbitrap) method was established to s...
Source: Molecules - December 15, 2016 Category: Chemistry Authors: Yanyun Che Zhibin Wang Zhiyun Zhu Yangyang Ma Yaqiong Zhang Wen Gu Jiayu Zhang Gaoxiong Rao Tags: Article Source Type: research
Development and efficacy assessments of tea seed oil makeup remover.
CONCLUSION: The safe and efficient tea seed oil makeup removers had been developed. The consumers' choices towards the makeup remover containing the bio-oils are widen. In vitro cleansing efficacy during the course of makeup remover development using UV-spectrophotometric method feasible for pharmaceutic industries is encouraged.
PMID: 27988044 [PubMed - as supplied by publisher] (Source: Annales Pharmaceutiques Francaises)
Source: Annales Pharmaceutiques Francaises - December 13, 2016 Category: Drugs & Pharmacology Authors: Parnsamut N, Kanlayavattanakul M, Lourith N Tags: Ann Pharm Fr Source Type: research
Zinc stress affects ionome and metabolome in tea plants
Publication date: Available online 12 December 2016 Source:Plant Physiology and Biochemistry Author(s): Yinfei Zhang, Yu Wang, Zhaotang Ding, Hui Wang, Lubin Song, Sisi Jia, Dexin Ma The research of physiological responses to Zn stress in plants has been extensively studied. However, the ionomics and metabolomics responses of plants to Zn stress remain largely unknown. In present study, the nutrient elements were identified involved in ion homeostasis and metabolomics changes related to Zn deficiency or excess in tea plants. Nutrient element analysis demonstrated that the concentrations of Zn affected the ion-upta...
Source: Plant Physiology and Biochemistry - December 12, 2016 Category: Biochemistry Source Type: research
Flavonoids, phenolic acids, alkaloids and theanine in different types of authentic Chinese white tea samples
Publication date: Available online 12 December 2016 Source:Journal of Food Composition and Analysis Author(s): Junfeng Tan, Ulrich H. Engelhardt, Zhi Lin, Nils Kaiser, Beate Maiwald The aim of the study was to generate compositional data for authentic white tea samples from China to serve as a starting point for a database and aid the definition of white teas. Quantitative data for the major catechins, hydrolysable tannins, phenolic acids, flavonol glycosides, alkaloids and theanine in 58 Chinese white teas were obtained based on HPLC methods Data for the major theaflavins in white teas are provided for the first ti...
Source: Journal of Food Composition and Analysis - December 12, 2016 Category: Food Science Source Type: research
Evaluating the efficacy of denture cleansing materials in removal of tea and turmeric stains: An in vitro study
Conclusion: It was found that all the denture cleansing materials used in the study were effective in removing tea and turmeric stains. Products containing sodium perborate along with trisodium phosphate had a comparatively greater stain removal capability than products containing sodium perborate along with sodium bicarbonate followed by products containing sodium hypochlorite followed by water (control). (Source: Indian Journal of Dental Research)
Source: Indian Journal of Dental Research - December 12, 2016 Category: Dentistry Authors: Priyanka P Makhija Kamal Shigli Vaibhav Awinashe Source Type: research
The effect of green tea extract on oxidative stress and spatial learning in ...
This study demonstrated the effectiveness of TGTE on spatial impairment and oxidative stress induced in diabetes mellitus. (Source: Iranian Journal of Pharmaceutical Research)
Source: Iranian Journal of Pharmaceutical Research - December 10, 2016 Category: Drugs & Pharmacology Source Type: research
Molecules, Vol. 21, Pages 1679: Cancer Preventive Activities of Tea Catechins
This article reviews the cancer preventive activities and mechanisms of action of tea catechins involving their redox activities, biochemical properties and binding to key enzymes or signal tra nsduction proteins. These mechanisms lead to suppression of cell proliferation, increased apoptosis and inhibition of angiogenesis. The relevance of the proposed mechanisms for cancer prevention are assessed in the light of the situation in vivo. The potential and possible problems in the applicatio n of tea and tea-derived products for cancer prevention are discussed. (Source: Molecules)
Source: Molecules - December 8, 2016 Category: Chemistry Authors: Chung Yang Hong Wang Tags: Review Source Type: research
Fabrication ofsolar cell usingextracted biomolecules from tea leaves and hybrid perovskites
Publication date: 2016 Source:Materials Today: Proceedings, Volume 3, Issue 10, Part A Author(s): Argha Dey, Sk. Abdul Moyez, Milan Kumar Mandal, Subhasis Roy In today’s world where energy plays an important role in everyone’s life, major stress is given to cultivate alternative source of energy rather than the conventional one. One of the most promising out comings of un-conventional source of energy is the dye sensitized solar cell (DSSC). The low cost fabrication of DSSC indicating the economic viability. In this present research work we have extracted tea catechins from green tea through several steps which f...
Source: Materials Today: Proceedings - December 8, 2016 Category: Materials Science Source Type: research
Phytochemical profiles and antioxidant activity of 27 cultivars of tea.
Authors: Zeng L, Luo L, Li H, Liu R
Abstract
Tea, rich in phytochemicals, has been suggested to have human health benefits. The phenolic profiles, antioxidant and antiproliferative activities of 27 tea cultivars were determined. Wide ranges of variation were found in analyzed cultivars for the contents of water-soluble phenolics (121.6-223.7 mg/g dry weight (DW)), total catechins (TC) (90.5-177.2 mg/g DW), antioxidant activities (PSC values 627.3-2332.3 μmol of vitamin C equiv/g DW, ORAC values (1865.1-3489.3 μmol of vitamin C equiv/g DW), CAA values (37.7-134.3 μmol of QE/g DW without PBS was...
Source: International Journal of Food Sciences and Nutrition - December 7, 2016 Category: Nutrition Tags: Int J Food Sci Nutr Source Type: research
Molecules, Vol. 21, Pages 1659: Mechanisms of Body Weight Reduction by Black Tea Polyphenols
Obesity is one of the most common nutritional diseases worldwide. This disease causes health problems, such as dyslipidemia, hyperglycemia, hypertension and inflammation. There are drugs used to inhibit obesity. However, they have serious side effects outweighing their beneficial effects. Black tea, commonly referred to as “fermented tea”, has shown a positive effect on reducing body weight in animal models. Black tea polyphenols are the major components in black tea which reduce body weight. Black tea polyphenols are more effective than green tea polyphenols. Black tea polyphenols exert a positive effect on inhib itin...
Source: Molecules - December 6, 2016 Category: Chemistry Authors: Haibo Pan Ying Gao Youying Tu Tags: Review Source Type: research
