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https://www.readbyqxmd.com/read/28713433/black-tea-source-production-and-consumption-assessment-of-health-risks-of-fluoride-intake-in-new-zealand
#1
Declan T Waugh, Michael Godfrey, Hardy Limeback, William Potter
In countries with fluoridation of public water, it is imperative to determine other dietary sources of fluoride intake to reduce the public health risk of chronic exposure. New Zealand has one of the highest per capita consumption rates of black tea internationally and is one of the few countries to artificially fluoridate public water; yet no information is available to consumers on the fluoride levels in tea products. In this study, we determined the contribution of black tea as a source of dietary fluoride intake by measuring the fluoride content in 18 brands of commercially available products in New Zealand...
2017: Journal of Environmental and Public Health
https://www.readbyqxmd.com/read/28704984/the-effect-of-personal-familial-and-enviroinmental-characteristics-on-acne-vulgaris-a-prospective-multicenter-case-controlled-study-from-turkey
#2
Ayşe S Karadağ, İlknur Balta, Hayriye Saricaoğlu, Selim Kiliç, Kıymet H Kelekçi, Mehmet Yildirim, Deniz A Arica, Savaş Öztürk, Göksun Karaman, Aslı A Çerman, Serap G Bilgili, Enver Turan, Mustafa M Demirci, Tuğba K Uzunçakmak, Serdar C Güvenç, Arzu Ataseven, Ayten Ferahbaş, Berna Aksoy, Emine Çölgeçen, Özlem Ekiz, Filiz Topaloğlu Demir, Özlem Bilgiç, Seray Çakmak, Derya Uçmak, Pınar Özuğuz, Yeşim Kaymak Konkuralp, Aylin T Ermertcan, Gonca Gökdemir, Emel Bülbül Başkan, Gökçen Alyamaç, Hatice Şanli
BACKGROUND: There are only a few studies about epidemiological features of acne vulgaris in the literature. The aim of this study was to analyze demographic, clinical, familial and environmental characteristics of acne, the role of diet and aggravating factors and association of these factors with acne severity. METHODS: Patients with a diagnosis of mild-moderate to severe acne were consecutively interviewed at the participating centers during the study period. RESULTS: A total of 3826 patients and 759 control patients were involved in this study...
July 11, 2017: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
https://www.readbyqxmd.com/read/28696952/total-elbow-arthroplasty-a-systematic-review
#3
Chantal L Welsink, Kaj T A Lambers, Derek F P van Deurzen, Denise Eygendaal, Michel P J van den Bekerom
BACKGROUND: Most total elbow arthroplasty (TEA) designs aim to replicate anatomy and provide stability in the treatment of the degenerative elbow joint. Given the promising results that have been reported following the use of TEA for the treatment of complex fractures, the indications for this procedure are growing. The objective of the present study was to review the most recent literature on the results of the most commonly performed TEAs. METHODS: A comprehensive literature search was conducted...
July 11, 2017: JBJS Reviews
https://www.readbyqxmd.com/read/28686224/a-balanced-risk-benefit-analysis-to-determine-human-risks-associated-with-pyrrolizidine-alkaloids-pa-the-case-of-tea-and-herbal-infusions
#4
REVIEW
Michael Habs, Karin Binder, Stefan Krauss, Karolina Müller, Brigitte Ernst, Luzia Valentini, Michael Koller
Humans are exposed to pyrrolizidine alkaloids (PA) through different sources, mainly from contaminated foodstuff. Teas and herbal infusions (T&HI) can be contaminated by PA producing weed. PA can possess toxic, mutagenic, genotoxic, and carcinogenic properties. Thus, possible health risks for the general population are under debate. There is a strong safety record for T&HI and additionally epidemiological evidence for the preventive effects of regular tea consumption on cardiovascular events and certain types of cancer...
July 7, 2017: Nutrients
https://www.readbyqxmd.com/read/28643351/quality-specifications-of-routine-clinical-chemistry-methods-based-on-sigma-metrics-in-performance-evaluation
#5
Jun Xia, Su-Feng Chen, Fei Xu, Yong-Lie Zhou
INTRODUCTION: Sigma metrics were applied to evaluate the performance of 20 routine chemistry assays, and individual quality control criteria were established based on the sigma values of different assays. METHODS: Precisions were expressed as the average coefficient variations (CVs) of long-term two-level chemistry controls. The biases of the 20 assays were obtained from the results of trueness programs organized by National Center for Clinical Laboratories (NCCL, China) in 2016...
June 23, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28639055/effects-of-kaolin-m-99-099-application-on-antioxidant-and-phenolic-compounds-in-tea-leaves-camellia-sinensis-l-o-kuntze
#6
Keziban Yazici, Burcu Goksu
In this study, the effects of kaolin (M-99-099) applications on the total phenolic and antioxidant contents of tea leaves (Camellia sinensis (L.) O. Kuntze) harvested in three different periods were investigated. For this purpose, four different strategies including standard fertilizer application (T), 3% kaolin+standard fertilizer application (Ka1), 6% kaolin+standard fertilizer application (Ka2), and control (C) (nothing applied) were used to compare the effects of these strategies on total phenolic content, FRAP values, and DPPH radical scavenging capacities of tea leaves...
June 21, 2017: Biochemical Genetics
https://www.readbyqxmd.com/read/28638382/expanding-role-of-t-cells-in-human-autoimmune-diseases-of-the-central-nervous-system
#7
REVIEW
Deepti Pilli, Alicia Zou, Fiona Tea, Russell C Dale, Fabienne Brilot
It is being increasingly recognized that a dysregulation of the immune system plays a vital role in neurological disorders and shapes the treatment of the disease. Aberrant T cell responses, in particular, are key in driving autoimmunity and have been traditionally associated with multiple sclerosis. Yet, it is evident that there are other neurological diseases in which autoreactive T cells have an active role in pathogenesis. In this review, we report on the recent progress in profiling and assessing the functionality of autoreactive T cells in central nervous system (CNS) autoimmune disorders that are currently postulated to be primarily T cell driven...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28628342/effect-of-green-tea-polyphenol-epigallocatechin-3-gallate-on-the-aggregation-of-%C3%AE-a-66-80-peptide-a-major-fragment-of-%C3%AE-a-crystallin-involved-in-cataract-development
#8
Vijay Kumar, Shalini Gour, Ocan Simon Peter, Shraddha Gandhi, Pankaj Goyal, Janmejay Pandey, Ram Swaroop Harsolia, Jay Kant Yadav
PURPOSE: Crystallin is a major protein present in eye lens. Peptide fragment αA(66-80) derived from αA-crystallin possesses high aggregation propensity and forms amyloid-like structures. αA(66-80) aggregates are known to interact with soluble crystallins and destabilize native structures that subsequently undergo aggregation. Crystallin aggregation in eye lens leads to reduction in lens opacity, the condition generally referred to as a cataract. Thus, αA(66-80) aggregation appears to be an important event during cataract development, and therefore, inhibition of αA(66-80) aggregation may be an attractive strategy to intervene in cataract development...
June 19, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28622555/very-sensitive-electrochemical-determination-of-diuron-on-glassy-carbon-electrode-modified-with-reduced-graphene-oxide-gold-nanoparticle-nafion-composite-film
#9
K Zarei, A Khodadadi
In this work, a very sensitive electrochemical sensor based on glassy carbon electrode (GCE) modified with reduced graphene oxide-gold nanoparticles/Nafion (rGO-AuNPs/Nafion) composite film was applied to determine diuron. Synthesized GO was characterized using X-ray diffraction (XRD) and UV-visible spectroscopy. The surface morphology of the rGO-AuNPs/Nafion film was also characterized using scanning electron microscopy and electrochemical impedance spectroscopy. Cyclic voltammetry (CV) and adsorptive differential pulse voltammetry (AdDPV) were applied to investigate the electrochemical response of the diuron on the modified electrode...
June 13, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28619982/jak1-2-and-bcl2-inhibitors-synergize-to-counteract-bone-marrow-stromal-cell-induced-protection-of-aml
#10
Riikka Karjalainen, Tea Pemovska, Mihaela Popa, Minxia Liu, Komal K Javarappa, Muntasir M Majumder, Bhagwan Yadav, David Tamborero, Jing Tang, Dmitrii Bychkov, Mika Kontro, Alun Parsons, Minna Suvela, Mireia Mayoral Safont, Kimmo Porkka, Tero Aittokallio, Olli Kallioniemi, Emmet McCormack, Bjørn T Gjertsen, Krister Wennerberg, Jonathan Knowles, Caroline A Heckman
The bone marrow (BM) provides a protective microenvironment to support the survival of leukemic cells and influence their response to therapeutic agents. In acute myeloid leukemia (AML), the high rate of relapse may in part be due to the inability of current treatment to effectively overcome the protective influence of the BM niche. To better understand the impact of the BM microenvironment on drug responses in AML, we conducted a comprehensive evaluation of 304 inhibitors, including approved and investigational agents, comparing ex vivo responses of primary AML cells in BM stroma-derived and standard culture conditions...
June 15, 2017: Blood
https://www.readbyqxmd.com/read/28593720/phytoestrogen-rich-natural-preparation-for-treatment-of-climacteric-syndrome-and-atherosclerosis-prevention-in-perimenopausal-women
#11
T V Kirichenko, V A Myasoedova, V A Orekhova, A L Ravani, N A Nikitina, A V Grechko, I A Sobenin, A N Orekhov
The present study evaluated the risks and benefits of phytoestrogen treatment in healthy perimenopausal women in relation to the dynamics of climacteric syndrome and progression of atherosclerosis. Study participants were treated with placebo or phytoestrogen-rich natural preparation Karinat based on grape (Vitis vinifera) seeds, green tea (Camellia sinensis) leaves, hop (Hunulus lupulus) cone powder and garlic (Allium sativum) powder. The dynamics of climacteric syndrome was evaluated by Kupperman Index and Utian Quality of Life Scale...
June 8, 2017: Phytotherapy Research: PTR
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
#12
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/28575004/comparative-chloroplast-genomes-of-eleven-schima-theaceae-species-insights-into-dna-barcoding-and-phylogeny
#13
Xiang-Qin Yu, Bryan T Drew, Jun-Bo Yang, Lian-Ming Gao, De-Zhu Li
Schima is an ecologically and economically important woody genus in tea family (Theaceae). Unresolved species delimitations and phylogenetic relationships within Schima limit our understanding of the genus and hinder utilization of the genus for economic purposes. In the present study, we conducted comparative analysis among the complete chloroplast (cp) genomes of 11 Schima species. Our results indicate that Schima cp genomes possess a typical quadripartite structure, with conserved genomic structure and gene order...
2017: PloS One
https://www.readbyqxmd.com/read/28566403/kudo-type-5-total-elbow-arthroplasty-for-patients-with-rheumatoid-arthritis-a-minimum-ten-year-follow-up-study
#14
A Kodama, T Mizuseki, N Adachi
AIMS: We assessed the long-term (more than ten-year) outcomes of the Kudo type-5 elbow prosthesis in patients with rheumatoid arthritis (RA). MATERIALS AND METHODS: We reviewed 41 elbows (Larsen Grade IV, n = 21; Grade V, n = 20) in 31 patients with RA who had undergone a Kudo type-5 total elbow arthroplasty (TEA) between 1994 and 2003, and had been followed up for more than ten years. The humeral component was cementless and the all-polyethylene ulnar component cemented in every patient...
June 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28546125/molecular-cloning-and-functional-characterization-of-coft1-a-homolog-of-flowering-locus-t-ft-from-camellia-oleifera
#15
Hengjiu Lei, Shuchai Su, Luyi Ma, Yue Wen, Xiangnan Wang
FLOWERING LOCUS T (FT) is an important integrator of flowering genetic pathways and plays crucial roles in flowering transition. The tea-oil tree (Camellia oleifera Abel.) is a valuable woody oil crop, but the molecular mechanisms controlling flowering are still unclear. In this study, a FT-like gene, CoFT1, was isolated and characterized from C. oleifera. The CoFT1 protein was localized in the nucleus and cytoplasm of Arabidopsis protoplasts, and exhibited no transactivation activity in yeast cells. CoFT1 was highly expressed in mature leaves and reproductive organs, such as flower buds, flowers, flower organs, and young fruits...
May 22, 2017: Gene
https://www.readbyqxmd.com/read/28539718/azorella-compacta-infusion-activates-human-immune-cells-and-scavenges-free-radicals-in-vitro
#16
Lenka Tůmová, Zuzana Dučaiová, José Cheel, Ivan Vokřál, Beatriz Sepúlveda, Doris Vokurková
BACKGROUND: Azorella compacta is traditionally used in the form of tea (infusion), in the Andean region of South America, to treat various chronic diseases. However, the health-promoting properties of this herbal tea have not yet been extensively explored. MATERIALS AND METHODS: The free radical scavenging activity of A. compacta infusion (ACI) was evaluated by the 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical and superoxide anion radical assays. The activation of immune cells by ACI, as determined by cell surface cluster of differentiation 69 expression, was measured by flow cytometry...
April 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28537488/capturing-human-na%C3%A3-ve-pluripotency-in-the-embryo-and-in-the-dish
#17
Ludovic Zimmerlin, Tea Soon Park, Elias T Zambidis
Although human embryonic stem cells (hESCs) were first derived almost 20 years ago, it was only recently acknowledged that they share closer molecular and functional identity to postimplantation lineage-primed murine epiblast stem cells than to naïve preimplantation inner cell mass-derived mouse ESCs (mESCs). A myriad of transcriptional, epigenetic, biochemical, and metabolic attributes have now been described that distinguish naïve and primed pluripotent states in both rodents and humans. Conventional hESCs and human induced pluripotent stem cells (hiPSCs) appear to lack many of the defining hallmarks of naïve mESCs...
June 26, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28536872/cytoprotective-propensity-of-green-tea-polyphenols-against-citrinin-induced-skeletal-myotube-damage-in-c2c12-cells
#18
G R Sharath Babu, N Ilaiyaraja, Farhath Khanum, T Anand
The mycotoxin citrinin, is produced by several species of Penicillium, Aspergillus and Monascus, and is capable of inducing cytotoxicity, oxidative stress and apoptosis. The aim of the present study was to investigate the effect of citrinin in mouse skeletal muscle cells (C2C12) and to overcome the cellular adverse effects by supplementing green tea extract (GTE) rich in polyphenols. C2C12 myoblasts were differentiated to myotubes and were exposed to citrinin in a dose dependent manner (0-100 µM) for 24 h and IC50 value was found to be 100 µM that resulted in decreased cell viability, increased LDH leakage and compromised membrane integrity...
May 23, 2017: Cytotechnology
https://www.readbyqxmd.com/read/28535255/tea-and-coffee-consumption-in-relation-to-dna-methylation-in-four-european-cohorts
#19
Weronica E Ek, Elmar W Tobi, Muhammad Ahsan, Erik Lampa, Erica Ponzi, Soterios A Kyrtopoulos, Panagiotis Georgiadis, L H Lumey, Bastiaan T Heijmans, Maria Botsivali, Ingvar A Bergdahl, Torgny Karlsson, Mathias Rask-Andersen, Domenico Palli, Erik Ingelsson, Åsa K Hedman, Lena M Nilsson, Paolo Vineis, Lars Lind, James M Flanagan, Åsa Johansson
Lifestyle factors, such as food choices and exposure to chemicals, can alter DNA methylation and lead to changes in gene activity. Two such exposures with pharmacologically active components are coffee and tea consumption. Both coffee and tea has been suggested to play an important role in modulating disease-risk in humans by suppressing tumour progression, decreasing inflammation and influencing estrogen metabolism. These mechanisms may be mediated by changes in DNA methylation.To investigate if DNA methylation in blood is associated with coffee and tea consumption we performed a genome-wide DNA methylation study for coffee and tea consumption in four European cohorts (N = 3,096)...
May 23, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28534052/tea-polyphenol-t-arjuna-bark-as-sperm-antioxidant-extender-in-infertile-smokers
#20
R Parameswari, K A Rao, P Manigandan, A S Vickram, A Archana, T B Sridharan
BACKGROUND: Antioxidants protect spermatozoa against lipid peroxidation during freezing. OBJECTIVE: The study is designed to elucidate the suitable extender to preserve infertile semen of smokers against ROS damage using natural Tea polyphenol (T. arjuna bark extract). MATERIALS AND METHODS: Forty-two infertile subjects with smoking habit and 28 fertile subjects without smoking habit were considered for the study. Four semen extenders including our naturally derived antioxidant component were prepared and used to preserve semen sample from the study subjects for a period of one month...
March 2017: Cryo Letters
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