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https://www.readbyqxmd.com/read/28925046/in-vivo-pharmacodynamic-and-pharmacokinetic-interactions-of-hibiscus-sabdariffa-calyces-extracts-with-simvastatin
#1
S J Showande, O M Adegbolagun, S I Igbinoba, T O Fakeye
WHAT IS KNOWN AND OBJECTIVES: Increasing number of patients use herbs with their medications. Such practice may result in beneficial or harmful herb-drug interactions. A recent survey reported that some participants co-administered Hibiscus sabdariffa, a widely used beverage, or tea, with their antihyperlipidaemic medications. This study therefore evaluated the effect of concomitant administration of Hibiscus sabdariffa calyces' extracts with simvastatin on hyperlipidaemia and pharmacokinetics of the drug in vivo...
September 18, 2017: Journal of Clinical Pharmacy and Therapeutics
https://www.readbyqxmd.com/read/28911609/antibacterial-and-laxative-activities-of-strictinin-isolated-from-pu-er-tea-camellia-sinensis
#2
Sheng-Kuo Hsieh, Jun-Rui Xu, Nan-Hei Lin, Yue-Chiun Li, Guan-Heng Chen, Ping-Chung Kuo, Wen-Ying Chen, Jason T C Tzen
Strictinin, the major phenolic compound in Pu'er teas produced from young leaves and buds of wild trees, was isolated to evaluate its antibacterial and laxative activities. The minimum inhibitory concentrations of strictinin against Propionibacterium acnes and Staphylococcus epidermidis were determined as 250 μM and 2000 μM, respectively, apparently higher than those of several antibiotics commonly used for bacterial infections. The additive and synergistic effects on the inhibitory activities of strictinin combined with other commercial antibiotics were observed in two bacteria tested in this study via the analysis of fractional inhibitory concentrations...
October 2016: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28904061/a-randomized-controlled-trial-of-green-tea-extract-supplementation-and-mammographic-density-in-postmenopausal-women-at-increased-risk-of-breast-cancer
#3
Hamed Samavat, Giske Ursin, Tim H Emory, Eunjung Lee, Renwei Wang, Carolyn J Torkelson, Allison M Dostal, Karen Swenson, Chap T Le, Chung S Yang, Mimi C Yu, Douglas Yee, Anna H Wu, Jian-Min Yuan, Mindy S Kurzer
Epidemiological and animal studies suggest a protective role of green tea against breast cancer. However the underlying mechanism is not understood. We conducted a randomized, double-blinded, placebo-controlled phase II clinical trial to investigate whether supplementation with green tea extract (GTE) modifies mammographic density (MD), as a potential mechanism, involving 1,075 healthy postmenopausal women. Women assigned to the treatment arm consumed daily 4 decaffeinated GTE capsules containing 1315 mg total catechins including 843 mg epigallocatechin-3-gallate (EGCG) for 12 months...
September 13, 2017: Cancer Prevention Research
https://www.readbyqxmd.com/read/28903731/phytochemical-rich-foods-inhibit-the-growth-of-pathogenic-trichomonads
#4
Sabrina M Noritake, Jenny Liu, Sierra Kanetake, Carol E Levin, Christina Tam, Luisa W Cheng, Kirkwood M Land, Mendel Friedman
BACKGROUND: Plants produce secondary metabolites that often possess widespread bioactivity, and are then known as phytochemicals. We previously determined that several phytochemical-rich food-derived preparations were active against pathogenic foodborne bacteria. Trichomonads produce disease (trichomoniasis) in humans and in certain animals. Trichomonads are increasingly becoming resistant to conventional modes of treatment. It is of interest to test bioactive, natural compounds for efficacy against these pathogens...
September 13, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28891568/selective-antitumoural-action-of-pressurized-mango-leaf-extracts-against-minimally-and-highly-invasive-breast-cancer
#5
M T Fernández-Ponce, A López-Biedma, C Sánchez-Quesada, L Casas, C Mantell, J J Gaforio, E J Martínez de la Ossa
Mango leaf tea has been traditionally used by different cultures to reduce inflammation in the body. There is evidence that chronic inflammation increases the risk of cancer. This study investigates the antitumoural effects of pressurized mango leaf extracts on minimally (MCF7) and highly invasive (MDA-MB-231) breast cancer cells as well as on non-tumourigenic cells (MCF10). Extracts showed protective properties against oxidation and cytotoxic effects against breast cancer cell lines, causing minor damage to non-carcinogenic cells...
September 11, 2017: Food & Function
https://www.readbyqxmd.com/read/28887677/evolutionary-and-functional-characterization-of-leucoanthocyanidin-reductases-from-camellia-sinensis
#6
Peiqiang Wang, Lingjie Zhang, Xiaolan Jiang, Xinlong Dai, Lijuan Xu, Tong Li, Dawei Xing, Yanzhi Li, Mingzhuo Li, Liping Gao, Tao Xia
LARs promoted the biosynthesis of catechin monomers and inhibited their polymerization. The accumulation of catechin monomers and polymers was increased by up-regulating the expression of NtLAR and NtANR s in CsMYB5b transgenic tobacco. Tea is rich in polyphenolic compounds, and catechins are the major polyphenols in tea. The biosynthesis of polyphenols is closely related to the expression of the leucoanthocyanidin reductase (LAR) and anthocyanidin reductase (ANR) genes. In this paper, an evolutionary analysis and functional characterization of three CsLARs were performed...
September 8, 2017: Planta
https://www.readbyqxmd.com/read/28886311/effect%C3%A2-of%C3%A2-sucrose-concentrations-on-stevia-rebaudiana-bertoni-tissue-culture-and-gene-expression
#7
T Ghorbani, D Kahrizi, M Saeidi, I Arji
Stevia rebaudiana (Bert.) Bertoni is known as sweet plant which it contains a high level of steviol glycosides in the leaves.  This plant has been used from centuries ago as a sweetener for tea. One of the most important steviol glycosides is stevioside that is attractive for diabetic persons. Tissue culture is the only rapid process for the mass propagation of stevia. One of the most important factors in the medium is sucrose that is a necessary for plant growth. In the present study, we use nodal segments of the stem as explants in mediums with different sucrose concentration (50 mM, 100mM and 150mM)...
August 30, 2017: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/28881400/quality-specification-and-status-of-internal-quality-control-of-cardiac-biomarkers-in-china-from-2011-to-2016
#8
Tingting Li, Wei Wang, Haijian Zhao, Falin He, Kun Zhong, Shuai Yuan, Zhiguo Wang
BACKGROUND: This study aimed to investigate the status of internal quality control (IQC) for cardiac biomarkers from 2011 to 2016 so that we can have overall knowledge of the precision level of measurements in China and set appropriate precision specifications. METHODS: Internal quality control data of cardiac biomarkers, including creatinine kinase MB (CK-MB) (μg/L), CK-MB(U/L), myoglobin (Mb), cardiac troponin I (cTnI), cardiac troponin T (cTnT), and homocysteines (HCY), were collected by a web-based external quality assessment (EQA) system...
September 7, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28865736/association-between-inflammatory-diet-pattern-and-risk-of-colorectal-carcinoma-subtypes-classified-by-immune-responses-to-tumor
#9
Li Liu, Reiko Nishihara, Zhi Rong Qian, Fred K Tabung, Daniel Nevo, Xuehong Zhang, Mingyang Song, Yin Cao, Kosuke Mima, Yohei Masugi, Yan Shi, Annacarolina da Silva, Tyler Twombly, Mancang Gu, Wanwan Li, Tsuyoshi Hamada, Keisuke Kosumi, Kentaro Inamura, Jonathan A Nowak, David A Drew, Paul Lochhead, Katsuhiko Nosho, Kana Wu, Molin Wang, Wendy S Garrett, Andrew T Chan, Charles S Fuchs, Edward L Giovannucci, Shuji Ogino
BACKGROUND & AIMS: Dietary patterns affect systemic and local intestinal inflammation, which have been linked to colorectal carcinogenesis. Chronic inflammation can interfere with the adaptive immune response. We investigated whether the association of a diet that promotes intestinal inflammation with risk of colorectal carcinoma was stronger for tumors with lower lymphocytic reactions than tumors with higher lymphocytic reactions. METHODS: We collected data from the molecular pathological epidemiology databases of 2 prospective cohort studies: the Nurses' Health Study (since 1976) and the Health Professional Follow-up Study (since 1986)...
August 30, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28865074/diversity-of-lactic-acid-bacteria-from-miang-a-traditional-fermented-tea-leaf-in-northern-thailand-and-their-tannin-tolerant-ability-in-tea-extract
#10
Siriporn Chaikaew, Sasitorn Baipong, Teruo Sone, Apinun Kanpiengjai, Naradorn Chui-Chai, Kozo Asano, Chartchai Khanongnuch
The microbiota of lactic acid bacteria (LAB) in thirty-five samples of Miang, a traditional fermented tea leaf product, collected from twenty-two different regions of eight provinces in upper northern Thailand was revealed through the culture-dependent technique. A total of 311 presumptive LAB strains were isolated and subjected to clustering analysis based on repetitive genomic element-PCR (rep-PCR) fingerprinting profiles. The majority of the strains belonged to the Lactobacillus genera with an overwhelming predominance of the Lb...
September 2017: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/28846633/strawberries-improve-pain-and-inflammation-in-obese-adults-with-radiographic-evidence-of-knee-osteoarthritis
#11
Jace Schell, R Hal Scofield, James R Barrett, Biji T Kurien, Nancy Betts, Timothy J Lyons, Yan Daniel Zhao, Arpita Basu
Osteoarthritis (OA), the most common form of arthritis, is a significant public health burden in U.S. adults. Among its many risk factors, obesity is a key player, causing inflammation, pain, impaired joint function, and reduced quality of life. Dietary polyphenols and other bioactive compounds in berries, curcumin, and tea have shown effects in ameliorating pain and inflammation in OA, but few clinical studies have been reported. The purpose of the present study was to examine the effects of dietary strawberries on pain, markers of inflammation, and quality of life indicators in obese adults with OA of the knee...
August 28, 2017: Nutrients
https://www.readbyqxmd.com/read/28844679/syzygium-cumini-leaf-extract-inhibits-ldl-oxidation-but-does-not-protect-the-liproprotein-from-glycation
#12
Matheus M Dos Santos, Alessandro S Prestes, Gabriel T de Macedo, Assis Ecker, Rômulo P Barcelos, Aline A Boligon, Diego Souza, Andreza F de Bem, João B T da Rocha, Nilda V Barbosa
ETNOPHARMACOLOGICAL RELEVANCE: Syzygium cumini (L.) Skeels is a plant widely used in folk medicine to treat diabetes mellitus (DM). The tea from its leaves is frequently used by diabetics for lowering hyperglycemia. There is a close relationship between DM and atherosclerosis, a chronic immuno-inflammatory disease, were the early stages encompass oxidative and glycative modifications in the structure of low density lipoprotein (LDL). AIM OF THIS STUDY: To investigate the potential protective effects of aqueous-leaf extract from Syzygium cumini (S...
August 26, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28825557/analysis-of-theanine-in-tea-camellia-sinensis-dietary-ingredients-and-supplements-by-high-performance-liquid-chromatography-with-postcolumn-derivatization-single-laboratory-validation-first-action-2016-10
#13
Mariaova Ofitser, Sareeta Nerkar, Brian T Schaneberg, Nour Eddine Es-Safi, Tetsuhisa Goto, Martha Jennens, Holly E Johnson, Philip J Koerner, Pam A Marone, Melissa Meaney Phillips, Tom Phillips, Klaus Reif, Aniko M Solyom, Darryl M Sullivan, Marina Torres, Jinchuan Yang, Kurt Young, Yanjun Zhang
No abstract text is available yet for this article.
January 1, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28813453/metabolomics-reveals-that-vine-tea-ampelopsis-grossedentata-prevents-high-fat-diet-induced-metabolism-disorder-by-improving-glucose-homeostasis-in-rats
#14
Wenting Wan, Baoping Jiang, Le Sun, Lijia Xu, Peigen Xiao
BACKGROUND: Vine tea (VT), derived from Ampelopsis grossedentata (Hand.-Mazz.) W.T. Wang, is an alternative tea that has been consumed widely in south China for hundreds of years. It has been shown that drinking VT on a daily basis improves hyperlipidemia and hyperglycemia. However, little is known about the preventive functions of VT for metabolic dysregulation and the potential pathological mechanisms involved. This paper elucidates the preventive effects of VT on the dysregulation of lipid and glucose metabolism using rats maintained on a high-fat-diet (HFD) in an attempt to explain the potential mechanisms involved...
2017: PloS One
https://www.readbyqxmd.com/read/28803573/the-school-environment-and-sugar-sweetened-beverage-consumption-among-guatemalan-adolescents
#15
Katelyn M Godin, Violeta Chacón, Joaquin Barnoya, Scott T Leatherdale
OBJECTIVE: The current study sought to examine Guatemalan adolescents' consumption of sugar-sweetened beverages (SSB), identify which individual-level characteristics are associated with SSB consumption and describe school characteristics that may influence students' SSB consumption. DESIGN: Within this observational pilot study, a questionnaire was used to assess students' consumption of three varieties of SSB (soft drinks, energy drinks, sweetened coffees/teas), as well as a variety of sociodemographic and behavioural characteristics...
August 14, 2017: Public Health Nutrition
https://www.readbyqxmd.com/read/28792903/hydrocalumite-thin-films-for-polyphenol-biosensor-elaboration
#16
A Soussou, I Gammoudi, A Kalboussi, C Grauby-Heywang, T Cohen-Bouhacina, Z M Baccar
Hybrid thin films based on Hydrocalumite (Ca2AlCl layered double hydroxide LDH) and tyrosinase enzyme have been used for the elaboration of a high sensitive amperometric biosensor detecting polyphenols extracted from green tea. Structural properties of LDH nanomaterials were characterized by X-ray powder diffraction and Infra-Red spectroscopy, confirming its crystalline phase and chemical composition. Ca2AlCl-LDHs-thin films were deposited by spin-coating, and studied by Atomic Force Microscopy (AFM) to obtain information about the surface morphology of this host matrix before and after enzyme's immobilization...
August 7, 2017: IEEE Transactions on Nanobioscience
https://www.readbyqxmd.com/read/28759040/tead1-4-exerts-oncogenic-role-and-is-negatively-regulated-by-mir-4269-in-gastric-tumorigenesis
#17
Y Zhou, T Huang, J Zhang, C C Wong, B Zhang, Y Dong, F Wu, J H M Tong, W K K Wu, A S L Cheng, J Yu, W Kang, K F To
TEA domain (TEAD) transcription factors are key components of the Hippo-YAP1 signaling pathway, but their functional role and regulatory mechanisms remain unclear. This study aims to comprehensively explore the expression pattern and functional role of TEAD family in gastric carcinogenesis and investigate its regulation by microRNAs (miRNAs). The mRNA and protein expression of TEAD family were examined by quantitative reverse transcription-PCR (qRT-PCR) and western blot. Their functional roles were determined by in vitro and in vivo studies...
July 31, 2017: Oncogene
https://www.readbyqxmd.com/read/28754883/the-prognostic-impacts-of-tea-domain-tead-transcription-factor-polymorphisms-in-chinese-hepatocellular-carcinoma-patients
#18
Haiyan Xia, Juan Wen, Weiyong Zhao, Dongying Gu, Zhibin Hu, Jinfei Chen, Zhi Xu
TEA domain (TEAD) transcription factors play an important role in hepatocellular carcinoma (HCC) development and progression by regulating the expression of a number of genes. However, the association of their genetic variations with HCC prognosis remains elusive. Seven potentially functional single nucleotide polymorphisms in TEAD1-4 (rs2304733, rs10831923, rs12104362, rs3745305, rs11756089, rs2076173, rs7135838) were genotyped from 331 hepatitis B virus positive HCC patients using the Sequenom MassARRAY iPLEX platform...
July 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28753729/safety-evaluation-of-green-tea-polyphenols-consumption-in-middle-aged-ovariectomized-rat-model
#19
Chwan-Li Shen, Gordon Brackee, Xiao Song, Michael D Tomison, VelvetLee Finckbone, Kelly T Mitchell, Lili Tang, Ming-Chien Chyu, Dale M Dunn, Jia-Sheng Wang
This work evaluates chronic safety in middle-aged ovariectomized rats supplemented with different dosages of green tea polyphenols (GTP) in drinking water. The experiment used 6-mo-old sham (n = 39) and ovariectomized (OVX, n = 143) female rats. All sham (n = 39) and 39 of the OVX animals received no GTP treatment and their samples were collected for outcome measures at baseline, 3 mo, and 6 mo (n = 13 per group for each). The remaining OVX animals were randomized into 4 groups receiving 0.15%, 0.5%, 1%, and 1...
July 28, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28750940/lifestyle-risk-factors-increase-the-risk-of-hospitalization-for-sciatica-findings-of-four-prospective-cohort-studies
#20
Rahman Shiri, Ulla Euro, Markku Heliövaara, Mirja Hirvensalo, Kirsti Husgafvel-Pursiainen, Jaro Karppinen, Jouni Lahti, Ossi Rahkonen, Olli T Raitakari, Svetlana Solovieva, Yang Xiaolin, Eira Viikari-Juntura, Tea Lallukka
BACKGROUND: To assess the effects of lifestyle risk factors on the risk of hospitalization for sciatica and to determine whether overweight or obesity modifies the effect of leisure-time physical activity on hospitalization for sciatica. METHODS: We included four Finnish prospective cohort studies (Health 2000 Survey, Mobile Clinic Survey, Helsinki Health Study and Young Finns Study) consisting of 34,589 participants and 1259 hospitalizations for sciatica during 12 to 30 years follow-up...
July 24, 2017: American Journal of Medicine
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