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green tea and weight loss

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https://www.readbyqxmd.com/read/29482377/green-tea-supplementation-upregulates-uncoupling-protein-3-expression-in-severe-obese-women-adipose-tissue-but-does-not-promote-weight-loss
#1
Driele Cristina Gomes Quinhoneiro, Carolina Ferreira Nicoletti, Marcela Augusta Souza Pinhel, Natália Yumi Noronha, Camila Bitu Moreno Braga, Bruno Affonso Parenti Oliveira, Cristiana Cortes-Oliveira, Wanderley Pereira Oliveira, Wilson Salgado Junior, Júlio Sergio Marchini, Carla Barbosa Nonino
This study aims (i) to verify expression of the UCPs, PLIN1, PPARG2, and ADRB3 genes in the abdominal subcutaneous adipose tissue of obese women at baseline and after 8 weeks of supplementation with decaffeinated green tea extract, and (ii) to associate findings with clinical parameters. This is a longitudinal study during which 11 women with obesity grade III were submitted to supplementation with 450 mg of (-)-epigallocatechin gallate (EGCG) (intervention group); the control group consisted of 10 eutrophic women...
February 26, 2018: International Journal of Food Sciences and Nutrition
https://www.readbyqxmd.com/read/29345213/matcha-green-tea-drinks-enhance-fat-oxidation-during-brisk-walking-in-females
#2
Mark Elisabeth Theodorus Willems, Mehmet Akif Şahin, Matthew David Cook
Intake of the catechin epigallocatechin gallate and caffeine has been shown to enhance exercise-induced fat oxidation. Matcha green tea powder contains catechins and caffeine and is consumed as a drink. We examined the effect of Matcha green tea drinks on metabolic, physiological and perceived intensity responses during brisk walking. Thirteen females (age: 27±8 yr, body mass: 65±7 kg, height: 166±6 cm) volunteered. Resting metabolic equivalent (1-MET) was measured using Douglas bags (1-MET: 3.4±0.3 ml·kg-1 ·min-1 )...
January 18, 2018: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/29342928/protein-oxidation-and-sensory-quality-of-brine-injected-pork-loins-added-ascorbate-or-extracts-of-green-tea-or-mat%C3%A3-during-chill-storage-in-high-oxygen-modified-atmosphere
#3
Sisse Jongberg, Mari Ann Tørngren, Leif H Skibsted
Background: Ascorbate is often applied to enhance stability and robustness of brine-injected pork chops sold for retail, but may affect protein oxidation, while plant extracts are potential substitutes. Methods: Brine-injected pork chops (weight-gain ~12%, NaCl ~0.9%) prepared with ascorbate (225 ppm), green tea extract (25 ppm gallic acid equivalents (GAE)), or maté extract (25 ppm GAE) stored (5 °C, seven days) in high-oxygen atmosphere packaging (MAP: 80% O₂ and 20% CO₂) were analyzed for color changes, sensory quality, and protein oxidation compared to a control without antioxidant...
January 15, 2018: Medicines (Basel, Switzerland)
https://www.readbyqxmd.com/read/29238244/influence-of-a-thermogenic-dietary-supplement-on-safety-markers-body-composition-energy-expenditure-muscular-performance-and-hormone-concentrations-a-randomized-placebo-controlled-double-blind-trial
#4
Grant M Tinsley, Stacie Urbina, Jacy Mullins, Jordan Outlaw, Sara Hayward, Matt Stone, Cliffa Foster, Colin Wilborn, Lem Taylor
Dietary supplementation is commonly employed by individuals seeking to improve body composition and exercise performance. The purpose of the present study was to examine the safety and effectiveness of a commercially available dietary supplement designed to promote thermogenesis and fat loss. In a randomized double-blind trial, participants were assigned to consume placebo or a multi-ingredient supplement containing caffeine, green tea extract, l-carnitine, evodiamine and other ingredients that purportedly enhance thermogenesis...
December 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/29232928/beverage-consumption-patterns-among-overweight-and-obese-african-american-women
#5
Terryl J Hartman, Regine Haardörfer, Brenda M Greene, Shruti Parulekar, Michelle C Kegler
The goal of this research was to assess patterns of beverage consumption and the contribution of total beverages and classes of beverages to overall energy intake and weight status. We conducted an analysis in a community-based study of 280 low-income overweight and obese African American women residing in the rural South. Participants provided baseline data including demographic characteristics, weight and two 24-h food and beverage dietary recalls. Mean energy intake from beverages was approximately 273 ± 192 kcal/day or 18...
December 11, 2017: Nutrients
https://www.readbyqxmd.com/read/29103160/long-term-intake-of-green-tea-extract-causes-mal-conformation-of-trabecular-bone-microarchitecture-in-growing-rats
#6
Akira Minematsu, Yasue Nishii, Hidetaka Imagita, Susumu Sakata
The purpose of this study was to examine the effects of green tea extract (GTE) intake on bone structural and physiological properties, such as bone mass, trabecular bone microarchitecture, cortical bone geometry, and bone mechanical strength, in growing rats. Four-week-old male Wistar rats were divided into the following four groups: standard diet feeding for 85 days (S-CON) or 170 days (L-CON), and GTE diet feeding for 85 days (S-GTE) or 170 days (L-GTE). At the end of the experiment, in addition to measurement of circulating bone formation/resorption markers, bone mass, trabecular bone microarchitecture, and cortical bone geometry were analyzed in the left femur, and bone mechanical strength of the right femur was measured...
November 4, 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/29072525/evaluation-of-epigallocatechin-gallate-and-epicatechin-gallate-effects-on-acrylamide-induced-neurotoxicity-in-rats-and-cytotoxicity-in-pc-12-cells
#7
Elahe Esmaeelpanah, Bibi Marjan Razavi, Faezeh Vahdati Hasani, Hossein Hosseinzadeh
The neurotoxicity of acrylamide (ACR) monomer occurs through different mechanisms such as oxidative stress. Epigallocatechin gallate (EGCG) and epicatechin gallate (ECG) are green tea catechins which are known as powerful antioxidants. In this study, we examined the possible protective effects of ECG and EGCG on ACR neurotoxicity in both in-vitro and in-vivo models. PC12 cells were exposed to different concentrations of ECG and EGCG. After 24 and 48 hours, ACR was added to the cells (IC50 = 4.85 mM) and cell viability was measured through MTT assay after 24 hours...
October 26, 2017: Drug and Chemical Toxicology
https://www.readbyqxmd.com/read/28965248/decaffeinated-green-and-black-tea-polyphenols-decrease-weight-gain-and-alter-microbiome-populations-and-function-in-diet-induced-obese-mice
#8
Susanne M Henning, Jieping Yang, Mark Hsu, Ru-Po Lee, Emma M Grojean, Austin Ly, Chi-Hong Tseng, David Heber, Zhaoping Li
PURPOSE: Decaffeinated green tea (GT) and black tea (BT) polyphenols inhibit weight gain in mice fed an obesogenic diet. Since the intestinal microflora is an important contributor to obesity, it was the objective of this study to determine whether the intestinal microflora plays a role in the anti-obesogenic effect of GT and BT. METHODS: C57BL/6J mice were fed a high-fat/high-sucrose diet (HF/HS, 32% energy from fat; 25% energy from sucrose) or the same diet supplemented with 0...
September 30, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28665330/effects-of-epigallocatechin-3-gallate-on-autophagic-lipolysis-in-adipocytes
#9
Sang-Nam Kim, Hyun-Jung Kwon, Seun Akindehin, Hyun Woo Jeong, Yun-Hee Lee
Previous studies demonstrated effects of green tea on weight loss; however, green tea-induced modulation of adipocyte function is not fully understood. Here, we investigated effects of the major green tea phytochemical, epigallocatechin-3-gallate (EGCG) on triglyceride contents, lipolysis, mitochondrial function, and autophagy, in adipocytes differentiated from C₃H10T1/2 cells and immortalized pre-adipocytes in vitro. EGCG reduced the triglycerol content significantly in adipocytes by 25%, comparable to the nutrient starvation state...
June 30, 2017: Nutrients
https://www.readbyqxmd.com/read/28595182/the-effect-of-dietary-supplements-containing-green-tea-capsaicin-and-ginger-extracts-on-weight-loss-and-metabolic-profiles-in-overweight-women-a-randomized-double-blind-placebo-controlled-clinical-trial
#10
Mohsen Taghizadeh, Narjes Farzin, Sara Taheri, Mahnaz Mahlouji, Hossein Akbari, Fatemeh Karamali, Zatollah Asemi
BACKGROUND: This study was conducted to determine the effects of dietary supplements containing green tea, capsaicin and ginger extracts on weight loss and metabolic profiles among overweight women. METHODS: This randomized double-blind placebo-controlled clinical trial was implemented among 50 overweight women. Participants were randomly divided into 2 groups. Group A received dietary supplements containing 125 mg green tea, 25 mg capsaicin and 50 mg ginger extracts (n = 25) group B received placebos (n = 25) twice with lunch and twice with dinner daily for 8 weeks...
2017: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/28584836/effect-of-green-tea-on-metabolic-and-hormonal-aspect-of-polycystic-ovarian-syndrome-in-overweight-and-obese-women-suffering-from-polycystic-ovarian-syndrome-a-clinical-trial
#11
Hatav Gasemi Tehrani, Maryam Allahdadian, Farzane Zarre, Hanie Ranjbar, Fateme Allahdadian
BACKGROUND AND OBJECTIVE: Polycystic ovarian syndrome (PCOS) is the common cause of Oligo-ovulation. This syndrome causes long-term metabolic issues as well as increase the risk of diabetes type 2, hypertension, dyslipidemia, and cardiovascular disease. The current research aimed to study the effect of green tea on weight and hormonal changes of women suffering from PCOS. METHODS: This two group, double-blind, randomized clinical trial was conducted in Isfahan city...
2017: Journal of Education and Health Promotion
https://www.readbyqxmd.com/read/28510251/short-term-effects-of-green-tea-chronotherapy-on-the-metabolic-homeostasis-of-mice-on-different-diets
#12
R P Amorim, I P Daher, F P D Arcangelo, M F Bellini, W A Orcini, G R Sarria, R L Peruquetti
Biological rhythms can be defined as changes in physiological or behavioral variables that repeat at certain time intervals. Rhythms that last approximately 24 h are referred to as circadian rhythms. Modern lifestyles have drastically affected human habits, as well as the population's eating habits. These changes have generated an epidemic of metabolic syndromes, such as obesity and diabetes. In an attempt to combat obesity, populations have attempted to use many different herbal remedies and plant-based drugs, the most common of which is Camellia sinensis, or green tea...
May 10, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28372210/a-rapid-atr-ftir-spectroscopic-method-for-detection-of-sibutramine-adulteration-in-tea-and-coffee-based-on-hierarchical-cluster-and-principal-component-analyses
#13
Nur Cebi, Mustafa Tahsin Yilmaz, Osman Sagdic
Sibutramine may be illicitly included in herbal slimming foods and supplements marketed as "100% natural" to enhance weight loss. Considering public health and legal regulations, there is an urgent need for effective, rapid and reliable techniques to detect sibutramine in dietetic herbal foods, teas and dietary supplements. This research comprehensively explored, for the first time, detection of sibutramine in green tea, green coffee and mixed herbal tea using ATR-FTIR spectroscopic technique combined with chemometrics...
August 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28038897/herbal-supplements-association-with-reversible-cerebral-vasoconstriction-syndrome-a-case-report
#14
REVIEW
Isabel Costa, Marcelo D Mendonça, Vera Cruz E Silva, Sofia Calado, Miguel Viana-Baptista
BACKGROUND: Reversible cerebral vasoconstriction syndrome (RCVS) is a clinico-radiologic syndrome characterized by thunderclap headache and reversible multifocal arterial constrictions that resolves within 3 months. RCVS can be either spontaneous or related to a trigger; vasoactive drugs including over-the-counter medicine are common culprits. Nevertheless, there are sparse data on the association of herbal supplements in the genesis of unexplained RCVS. METHODS: We describe a case of RCVS with a temporal association with the consumption of a diet pill composed of green tea, L-carnitine, and conjugated linoleic acid...
March 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/27465483/usage-of-plant-food-supplements-pfs-for-weight-control-in-six-european-countries-results-from-the-plantlibra-pfs-consumer-survey-2011-2012
#15
Alicia Garcia-Alvarez, Raimon Mila-Villarroel, Lourdes Ribas-Barba, Bernadette Egan, Mihaela Badea, Franco M Maggi, Maija Salmenhaara, Patrizia Restani, Lluis Serra-Majem
BACKGROUND: Obesity is increasing worldwide and weight-control strategies, including the consumption of plant food supplements (PFS), are proliferating. This article identifies the herbal ingredients in PFS consumed for weight control and by overweight/obese dieters in six European countries, and explores the relationship between their consumption and their self-reported BMI. METHODS: Data used were a subset from the PlantLIBRA PFS Consumer Survey 2011-2012, a retrospective survey of 2359 PFS consumers...
July 28, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27450231/effects-of-greenselect-phytosome%C3%A2-on-weight-maintenance-after-weight-loss-in-obese-women-a-randomized-placebo-controlled-study
#16
RANDOMIZED CONTROLLED TRIAL
Luisa Gilardini, Lucia Pasqualinotto, Francesco Di Pierro, Paolo Risso, Cecilia Invitti
BACKGROUND: Most subjects regain weight after weight loss due to compensatory adaptations finalized to maintain stable body energy stores. Green tea (GT) preparations, which help maintain energy expenditure while dieting could be a useful strategy to facilitate weight maintenance. The usefulness of GT preparations in weight maintenance has been poorly studied so far with conflicting results. This study evaluated if a supplement of GSP and piperine helps obese women to maintain the weight loss obtained with a 3-month lifestyle intervention...
July 22, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27400086/the-antioxidant-effect-of-green-tea-mega-egcg-against-electromagnetic-radiation-induced-oxidative-stress-in-the-hippocampus-and-striatum-of-rats
#17
Nawal A Ahmed, Nasr M Radwan, Heba S Aboul Ezz, Noha A Salama
Electromagnetic radiation (EMR) of cellular phones may affect biological systems by increasing free radicals and changing the antioxidant defense systems of tissues, eventually leading to oxidative stress. Green tea has recently attracted significant attention due to its health benefits in a variety of disorders, ranging from cancer to weight loss. Thus, the aim of the present study was to investigate the effect of EMR (frequency 900 MHz modulated at 217 Hz, power density 0.02 mW/cm(2), SAR 1.245 W/kg) on different oxidative stress parameters in the hippocampus and striatum of adult rats...
2017: Electromagnetic Biology and Medicine
https://www.readbyqxmd.com/read/27189593/risk-of-liver-injury-associated-with-green-tea-extract-in-slimquick-%C3%A2-weight-loss-products-results-from-the-dilin-prospective-study
#18
Elizabeth X Zheng, Simona Rossi, Robert J Fontana, Raj Vuppalanchi, Jay H Hoofnagle, Ikhlas Khan, Victor J Navarro
INTRODUCTION: Herbal and dietary supplements (HDS) have been increasingly recognized as a cause for acute liver injury (Navarro et al. Hepatology 60(4):1399-1408, 2014; Bailey et al. J Nutr 141:261-266, 2011). HDS products frequently contain numerous ingredients, and are marketed under various product names. A perusal of marketed weight loss products indicates that green tea extract (GTE) is a common ingredient in many. We aimed to describe the course and outcome of six patients who developed liver injury attributed to SLIMQUICK(®) weight loss products...
August 2016: Drug Safety: An International Journal of Medical Toxicology and Drug Experience
https://www.readbyqxmd.com/read/27009797/microneedle-mediated-intradermal-delivery-of-epigallocatechin-3-gallate
#19
A Puri, H X Nguyen, A K Banga
OBJECTIVE: Epigallocatechin-3-gallate (EGCG) is the physiologically most active and abundant flavanol, accounting for 50-80% of green tea catechins. It is an anti-inflammatory, antioxidant, chemopreventive and skin photoprotective agent. However, light sensitivity and low permeability of EGCG across the stratum corneum due to its high molecular weight as well as strong binding to the lipid bilayers in the skin make it difficult to be used as a key ingredient in cosmetic products. This study aimed to formulate a photostable hydrogel of EGCG with good rheological properties for dermal application and investigate the effect of skin microporation using maltose microneedles on its permeation through dermatomed porcine skin...
October 2016: International Journal of Cosmetic Science
https://www.readbyqxmd.com/read/26957301/l-theanine-a-component-of-green-tea-prevents-3-nitropropionic-acid-3-np-induced-striatal-toxicity-by-modulating-nitric-oxide-pathway
#20
Sumit Jamwal, Puneet Kumar
L-theanine is unique amino acid which readily crosses blood brain barrier and possesses neuroprotective potential against neurodegenerative disorders including Huntington disease (HD). HD is characterized by selective loss of GABAergic medium spiny neurons. 3-nitropropionic acid (3-NP) induces a spectrum of HD-like neuropathology in rat striatum and widely used as experimental tool to study HD. Therefore, the present study was intended to investigate the effect of L-theanine against 3-NP-induced striatal toxicity and to explore its possible mechanism...
April 2017: Molecular Neurobiology
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