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https://www.readbyqxmd.com/read/28103455/-epidemiological-and-demographic-characteristics-of-patients-with-head-and-neck-tumours-in-the-northern-portugal-impact-on-survival
#1
Roberto Estêvão, Tiago Santos, Ana Ferreira, Anabela Machado, João Fernandes, Eurico Monteiro
INTRODUCTION: In Portugal there are still no epidemiological and demographic studies conducted in patients with of the head and neck tumors. The objectives of this analysis are to describe the epidemiological and demographics of patients with malignant tumors of the head and neck referred to an Ear, Nose and Throat department of an oncology center in the North of Portugal and also assess the impact of these characteristics on survival. MATERIAL AND METHODS: Retrospective study of patients referred between January 2011 and December 2013 to the Ear, Nose and Throat Department of an oncology center (Instituto Português de Oncologia do Porto),...
October 2016: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/28103409/zea-mays-fe-deficiency-related-4-zmfdr4-functions-as-an-iron-transporter-in-the-plastids-of-monocots
#2
Xiu-Yue Zhang, Xi Zhang, Qi Zhang, Xiao-Xi Pan, Luo-Chen Yan, Xiao-Juan Ma, Wei-Zhong Zhao, Xiao-Ting Qi, Li-Ping Yin
Iron (Fe)-homeostasis in the plastids is closely associated with Fe transport proteins that prevent Fe from occurring in its toxic free ionic forms. However, the number of known protein families related to Fe transport in the plastids (about 5) and the function of iron in non-green plastids is limited. In the present study, we report the functional characterization of Zea mays Fe deficiency-related 4 (ZmFDR4), which was isolated from a differentially expressed clone of a cDNA library of Fe deficiency-induced maize roots...
January 19, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28103252/comparative-and-evolutionary-analysis-of-grass-pollen-allergens-using-brachypodium-distachyon-as-a-model-system
#3
Akanksha Sharma, Niharika Sharma, Prem Bhalla, Mohan Singh
Comparative genomics have facilitated the mining of biological information from a genome sequence, through the detection of similarities and differences with genomes of closely or more distantly related species. By using such comparative approaches, knowledge can be transferred from the model to non-model organisms and insights can be gained in the structural and evolutionary patterns of specific genes. In the absence of sequenced genomes for allergenic grasses, this study was aimed at understanding the structure, organisation and expression profiles of grass pollen allergens using the genomic data from Brachypodium distachyon as it is phylogenetically related to the allergenic grasses...
2017: PloS One
https://www.readbyqxmd.com/read/28103115/involvement-of-autophagy-in-nk-cell-development-and-function
#4
Alejandro López-Soto, José Manuel Bravo-San Pedro, Guido Kroemer, Lorenzo Galluzzi, Segundo Gonzalez
Natural killer (NK) cells are the prototypical members of the recently identified family of innate lymphoid cells (ILCs). Thanks to their cytotoxic and secretory functions, NK cells play a key role in the immune response to cells experiencing various forms of stress, including viral infection and malignant transformation. Autophagy is a highly conserved network of degradative pathways that participate in the maintenance of cellular and organismal homeostasis as they promote adaptation to adverse microenvironmental conditions...
January 19, 2017: Autophagy
https://www.readbyqxmd.com/read/28103034/a-comparison-of-gallium-and-indium-alkoxide-complexes-as-catalysts-for-ring-opening-polymerization-of-lactide
#5
Alexandre B Kremer, Ryan J Andrews, Matthew J Milner, Xu R Zhang, Tannaz Ebrahimi, Brian O Patrick, Paula L Diaconescu, Parisa Mehrkhodavandi
The impact of the metal size and Lewis acidity on the polymerization activity of group 13 metal complexes was studied, and it was shown that, within the same ligand family, indium complexes are far more reactive and selective than their gallium analogues. To this end, gallium and aluminum complexes supported by a tridentate diaminophenolate ligand, as well as gallium complexes supported by N,N'-ethylenebis(salicylimine)(salen) ligands, were synthesized and compared to their indium analogues. Using the tridentate ligand set, it was possible to isolate the gallium chloride complexes 3 and (±)-4 and the aluminum analogues 5 and (±)-6...
January 19, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28102978/pretreatment-cardiometabolic-status-in-youth-with-early-onset-psychosis-baseline-results-from-the-tea-trial
#6
Karsten G Jensen, Christoph U Correll, Ditte Rudå, Dea G Klauber, Marie Stentebjerg-Olesen, Birgitte Fagerlund, Jens Richardt Møllegaard Jepsen, Anders Fink-Jensen, Anne Katrine Pagsberg
OBJECTIVE: To describe pretreatment cardiometabolic constitution in children and adolescents with first-episode psychosis (FEP). METHODS: Baseline cardiometabolic assessment was performed in youths aged 12-17 years with FEP entering the Tolerability and Efficacy of Antipsychotics (TEA) trial and matched healthy controls. Patients were included between June 10, 2010, and January 29, 2014. ICD-10 was used as the diagnostic classification system. Cardiometabolic risk markers were compared between patients versus controls and antipsychotic-naive versus antipsychotic-exposed patients...
January 17, 2017: Journal of Clinical Psychiatry
https://www.readbyqxmd.com/read/28102911/glutathione-peroxidase-like-enzymes-cover-five-distinct-cell-compartments-and-membrane-surfaces-in-arabidopsis-thaliana
#7
Safira Attacha, David Solbach, Krisztina Bela, Anna Moseler, Stephan Wagner, Markus Schwarzländer, Isabel Aller, Stefanie J Müller, Andreas J Meyer
Glutathione peroxidase-like enzymes (GPXLs) constitute a family of eight peroxidases in Arabidopsis thaliana. In contrast to the eponymous selenocysteine glutathione peroxidases (GPXs) in mammalian cells which use glutathione as electron donor, GPXLs rely on cysteine instead of selenocysteine for activity and depend on the thioredoxin system for reduction. Although plant GPXLs have been implicated in important agronomic traits such as drought tolerance, photooxidative tolerance and immune responses there remain major ambiguities regarding their subcellular localization...
January 19, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/28102479/peripherally-inserted-central-catheter-related-bloodstream-infection-caused-by-kocuria-marina-in-an-elderly-man
#8
Nobuaki Mori, Yuichi Nishihara, Hideki Tayama, Akiko Higuchi, Yasuko Aoki
BACKGROUND: Kocuria species are Gram-positive, aerobic cocci, and members of the Micrcoccaceae family that are known to be opportunistic pathogens. Although there have been sporadic reports of infections caused by Kocuria species, little is known regarding their human pathogenicity and clinical characteristics. CASE REPORT: We herein report a case of a peripherally inserted central catheter (PICC)-related bloodstream infection caused by Kocuria marina in a 90-year-old Japanese with multiple cancer...
January 19, 2017: Infection
https://www.readbyqxmd.com/read/28101896/adaptation-of-genetically-monomorphic-bacteria-evolution-of-copper-resistance-through-multiple-horizontal-gene-transfers-of-complex-and-versatile-mobile-genetic-elements
#9
D Richard, V Ravigné, A Rieux, B Facon, C Boyer, K Boyer, P Grygiel, S Javegny, M Terville, B I Canteros, I Robène, C Vernière, A Chabirand, O Pruvost, P Lefeuvre
Copper-based antimicrobial compounds are widely used to control plant bacterial pathogens. Pathogens have adapted in response to this selective pressure. Xanthomonas citri pv. citri, a major citrus pathogen causing Asiatic citrus canker, was first reported to carry plasmid-encoded copper resistance in Argentina. This phenotype was conferred by the copLAB gene system. The emergence of resistant strains has since been reported in Réunion and Martinique. Using microsatellite-based genotyping and copLAB PCR, we demonstrated that the genetic structure of the copper-resistant strains from these three regions was made up of two distant clusters and varied for the detection of copLAB amplicons...
January 19, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28101734/chondroitin-sulfates-and-their-binding-molecules-in-the-central-nervous-system
#10
REVIEW
L Djerbal, H Lortat-Jacob, Jcf Kwok
Chondroitin sulfate (CS) is the most abundant glycosaminoglycan (GAG) in the central nervous system (CNS) matrix. Its sulfation and epimerization patterns give rise to different forms of CS, which enables it to interact specifically and with a significant affinity with various signalling molecules in the matrix including growth factors, receptors and guidance molecules. These interactions control numerous biological and pathological processes, during development and in adulthood. In this review, we describe the specific interactions of different families of proteins involved in various physiological and cognitive mechanisms with CSs in CNS matrix...
January 18, 2017: Glycoconjugate Journal
https://www.readbyqxmd.com/read/28100850/molecular-characteristic-and-physiological-role-of-dopa-decarboxylase
#11
Joanna Guenter, Robert Lenartowski
The enzyme DOPA decarboxylase (aromatic-L-amino-acid decarboxylase, DDC) plays an important role in the dopaminergic system and participates in the uptake and decarboxylation of amine precursors in the peripheral tissues. Apart from catecholamines, DDC catalyses the biosynthesis of serotonin and trace amines. It has been shown that the DDC amino acid sequence is highly evolutionarily conserved across many species. The activity of holoenzyme is regulated by stimulation/blockade of membrane receptors, phosphorylation of serine residues, and DDC interaction with regulatory proteins...
December 31, 2016: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/28100679/etv5-regulates-il-10-production-in-th-cells
#12
Byunghee Koh, Matthew M Hufford, Xin Sun, Mark H Kaplan
IL-10 is an immunoregulatory cytokine that has broad effects across the immune system. In Th cell subsets, Th2 cells produce considerable amounts of IL-10. The transcription factors that regulate IL-10 production in Th2 cells are still incompletely described. In this study, we demonstrate that the ETS family transcription factor ETS variant (Etv)5 regulates IL-10 production in Th2 cells. T cell-specific Etv5-deficient and littermate control mice demonstrated that IL-10 production and gene expression were significantly decreased in the absence of Etv5...
January 18, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28100619/functional-analysis-of-hcv-envelope-protein-e1-using-a-trans-complementation-system-reveals-a-dual-role-of-a-putative-fusion-peptide-of-e1-in-both-hcv-entry-and-morphogenesis
#13
Yimin Tong, Xiaojing Chi, Wei Yang, Jin Zhong
: Hepatitis C virus (HCV) is an enveloped RNA virus belonging to the Flaviviridae family. It mainly infects human hepatocytes and causes chronic liver diseases including cirrhosis and cancer. HCV encodes two envelope proteins E1 and E2 that form a heterodimer and mediate virus entry. While E2 has been extensively studied, less has been done so for E1, and its role in HCV life cycle still needs to be elucidated. Here we developed a new cell culture model for HCV infection based on trans-complementation of E1...
January 18, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28100562/healthcare-organisation-and-delivery-for-people-with-dementia-and-comorbidity-a-qualitative-study-exploring-the-views-of-patients-carers-and-professionals
#14
Frances Bunn, Anne-Marie Burn, Louise Robinson, Marie Poole, Greta Rait, Carol Brayne, Johan Schoeman, Sam Norton, Claire Goodman
OBJECTIVES: People living with dementia (PLWD) have a high prevalence of comorbidty. The aim of this study was to explore the impact of dementia on access to non-dementia services and identify ways of improving service delivery for this population. DESIGN: Qualitative study involving interviews and focus groups. Thematic content analysis was informed by theories of continuity of care and access to care. SETTING: Primary and secondary care in the South and North East of England...
January 18, 2017: BMJ Open
https://www.readbyqxmd.com/read/28100380/-cigarette-consumer-price-and-affordability-in-china-results-from-2015-china-adult-survey
#15
L L Wang, Y Yang, Y Nan, M W Tu, J J Wang, Y Jiang
Objective: To analyze the change of cigarette consumption price, and understand the cigarette affordability in China. Methods: A total of 16 800 households were selected through multi-stage stratified cluster sampling. Then IPAQ was used to randomly select one family member to conduct the survey. Questionnaire from Global Tobacco Surveillance System with added country-specific questions was used. Results: Up to 50% of current smokers would buy 20 cigarettes with price of 9.9 yuan (RMB) or less, and 25% of current smokers would not buy 20 cigarettes with price exceed 5...
January 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28100374/-study-of-disease-burden-of-chronic-hepatitis-b-and-c-patients-in-shanghai-based-on-bronfenbrenner-s-ecological-systems-theory-a-community-based-survey
#16
H Ren, Y Shi, W Meng, J Y Hu, Y H Chen, Q C Pan
Objective: To systemically analyze family burden, quality of life of chronic hepatitis B and C patients in Shanghai and related influencing factors. Methods: A representative sample of chronic hepatitis patients (n=1 478) and their family members (n=1 478) was randomly selected through a multi-stage cluster sampling from 30 communities in 10 districts of Shanghai. One patient and one family member of each family were interviewed using different questionnaires to collect related information. Based on Bronfenbrenner' s ecological systems, psychological measurement, two-level random intercept model and multivariable structural equation model were applied to determine the effects and directions of the factors between life quality of chronic hepatitis patients and family burden...
January 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28100286/disease-burden-of-hepatitis-e-in-a-rural-population-in-china-a-community-based-survey
#17
H Jiang, S Huang, Y Zhao, Y Wang, C Yang, J Cai, Z Wang, J Zhang, X Zhang, H Jin
This study aimed to estimate the disease burden of hepatitis E in a rural region in China. A total of 489 hepatitis E cases were reported according to a community-based survey in an active hepatitis surveillance system between 2008 and 2015, the questionnaire and record-review methods were constructed to evaluate the economic and health burden of hepatitis E virus infections from societal perspectives. All costs were converted to US$ in 2015. The age-standardized cumulative incidence rate was 107·9/100 000, and the median age-standardized annual incidence rate was 16·5/100 000...
January 19, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28100277/stress-echo-2020-the-international-stress-echo-study-in-ischemic-and-non-ischemic-heart-disease
#18
Eugenio Picano, Quirino Ciampi, Rodolfo Citro, Antonello D'Andrea, Maria Chiara Scali, Lauro Cortigiani, Iacopo Olivotto, Fabio Mori, Maurizio Galderisi, Marco Fabio Costantino, Lorenza Pratali, Giovanni Di Salvo, Eduardo Bossone, Francesco Ferrara, Luna Gargani, Fausto Rigo, Nicola Gaibazzi, Giuseppe Limongelli, Giuseppe Pacileo, Maria Grazia Andreassi, Bruno Pinamonti, Laura Massa, Marco A R Torres, Marcelo H Miglioranza, Clarissa Borguezan Daros, José Luis de Castro E Silva Pretto, Branko Beleslin, Ana Djordjevic-Dikic, Albert Varga, Attila Palinkas, Gergely Agoston, Dario Gregori, Paolo Trambaiolo, Sergio Severino, Ayana Arystan, Marco Paterni, Clara Carpeggiani, Paolo Colonna
BACKGROUND: Stress echocardiography (SE) has an established role in evidence-based guidelines, but recently its breadth and variety of applications have extended well beyond coronary artery disease (CAD). We lack a prospective research study of SE applications, in and beyond CAD, also considering a variety of signs in addition to regional wall motion abnormalities. METHODS: In a prospective, multicenter, international, observational study design, > 100 certified high-volume SE labs (initially from Italy, Brazil, Hungary, and Serbia) will be networked with an organized system of clinical, laboratory and imaging data collection at the time of physical or pharmacological SE, with structured follow-up information...
January 18, 2017: Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/28100023/frontotemporal-lobar-degeneration-pathogenesis-pathology-and-pathways-to-phenotype
#19
REVIEW
David Ma Mann, Julie S Snowden
Frontotemporal Lobar Degeneration (FTLD) is a clinically, pathologically and genetically heterogeneous group of disorders that affect principally the frontal and temporal lobes of the brain. There are three major associated clinical syndromes, behavioural variant frontotemporal dementia (bvFTD), semantic dementia (SD) and progressive non-fluent aphasia (PNFA); three principal histologies, involving tau, TDP-43 and FUS proteins; and mutations in three major genes, MAPT, GRN and C9orf72, along with several other less common gene mutations...
January 18, 2017: Brain Pathology
https://www.readbyqxmd.com/read/28099666/access-to-medicines-in-brazil-based-on-monetary-and-non-monetary-acquisition-data-obtained-from-the-2008-2009-household-budget-survey
#20
Fernanda Caroline Silva Goes, Mauricio Homem-de-Mello, Eloisa Dutra Caldas
OBJECTIVE: To investigate the access to medicines by Brazilian families by monetary and non-monetary acquisition data. METHODS: This is a cross-sectional study based on data obtained from the 2008/2009 Brazilian Household Budget Survey. The units of assessment were households that participated in the survey and the data on the acquisition of medicines over the 30 days prior to the interviews. The medicines were classified according to the Anatomical Therapeutic Chemical classification system...
December 22, 2016: Revista de Saúde Pública
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