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https://www.readbyqxmd.com/read/28722177/metformin-induced-alterations-in-nucleotide-metabolism-cause-5-fluorouracil-resistance-but-gemcitabine-susceptibility-in-oesophageal-squamous-cell-carcinoma
#1
Charissa Mynhardt, Leonard Howard Damelin, Rupal Jivan, Jade Peres, Sharon Prince, Robin Bruce Veale, Demetra Mavri-Damelin
5-Fluorouracil (5-FU) is a chemotherapeutic agent used to treat a variety of gastric cancers including oesophageal squamous cell carcinoma (OSCC), for which the 5-year mortality rate exceeds 85%. Our study investigated the effects of metformin, an antidiabetic drug with established anti-cancer activity, in combination with 5-FU as a novel chemotherapy strategy, using the OSCC cell lines, WHCO1 and WHCO5. Our results indicate that metformin treatment induces significant resistance to 5-FU in WHCO1 and WHCO5 cells, by more than 5-fold and 6-fold respectively, as assessed by MTT assay...
July 19, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28715118/microrna159-targeted-slgamyb-transcription-factors-are-required-for-fruit-set-in-tomato
#2
Eder Marques da Silva, Geraldo Felipe Ferreira E Silva, Débora Brussolo Bidoia, Mariana da Silva Azevedo, Frederico Almeida de Jesus, Lilian Ellen Pino, Lázaro Eustáquio Pereira Peres, Esther Carrera, Isabel López-Díaz, Fabio Tebaldi Silveira Nogueira
The transition from flowering to fruit production, namely fruit set, is crucial to ensure successful sexual plant reproduction. Although studies have described the importance of hormones (i.e., auxin and gibberelins) in controlling fruit set after pollination and fertilization, the role of microRNA-based regulation during ovary development and fruit set is still poorly understood. Here we show that microRNA159/GAMYB1 and -2 pathway (the miR159/GAMYB1/2 module) is crucial for tomato ovule development and fruit set...
July 17, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28715086/optimal-use-of-transient-elastography-and-acoustic-radiation-force-impulse-to-stage-liver-fibrosis-in-hiv-hcv-coinfected-patients-in-clinical-practice
#3
Juan José López, Núria Pérez-Àlvarez, Raul V Rodríguez, Antoni Jou, Pere Carbonell, José A Jiménez, Laura Soldevila, Montserrat Tenesa, Jordi Tor, Bonaventura Clotet, Jordi Bechini, Cristina Tural
OBJECTIVES: Liver fibrosis (LF) is crucial for the individualized management of patients with hepatitis C virus (HCV). We evaluated the concordance between two noninvasive methods for staging LF, transient elastography (TE) and acoustic radiation force impulse (ARFI), in patients coinfected with human immunodeficiency virus and HCV. We propose an algorithm for optimal use of both techniques in routine clinical practice. METHODS: A total of 89 human immunodeficiency virus/HCV-coinfected patients underwent TE and ARFI on the same day...
July 17, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28713773/the-cytolethal-distending-toxin-subunit-cdtb-of-helicobacter-hepaticus-promotes-senescence-and-endoreplication-in-xenograft-mouse-models-of-hepatic-and-intestinal-cell-lines
#4
Christelle Péré-Védrenne, Martina Prochazkova-Carlotti, Benoit Rousseau, Wencan He, Lucie Chambonnier, Elodie Sifré, Alice Buissonnière, Pierre Dubus, Francis Mégraud, Christine Varon, Armelle Ménard
Cytolethal distending toxins (CDTs) are common among pathogenic bacteria of the human and animal microbiota. CDTs exert cytopathic effets, via their active CdtB subunit. No clear description of those cytopathic effects has been reported at the cellular level in the target organs in vivo. In the present study, xenograft mouse models of colon and liver cell lines were set up to study the effects of the CdtB subunit of Helicobacter hepaticus. Conditional transgenic cell lines were established, validated in vitro and then engrafted into immunodeficient mice...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28712048/photobiomodulation-therapy-improves-both-inflammatory-and-fibrotic-parameters-in-experimental-model-of-lung-fibrosis-in-mice
#5
Robson Alexandre Brochetti, Mayara Peres Leal, Raíssa Rodrigues, Renata Kelly da Palma, Luis Vicente Franco de Oliveira, Anna Carolina Ratto Tempestini Horliana, Amílcar Sabino Damazo, Ana Paula Ligeiro de Oliveira, Rodolfo Paula Vieira, Adriana Lino-Dos-Santos-Franco
Lung fibrosis (LF) is a chronic and progressive lung disease characterized by pulmonary parenchyma progressive lesion, inflammatory infiltration, and interstitial fibrosis. It is developed by excessive collagen deposition and other cellular matrix components, resulting in severe changes in the alveolar architecture. Considering the absence of effective treatment, the aim of this study was to investigate the effect of photobiomodulation therapy (PBMT) on the development of PF. For this purpose, we used C57BL6 mice subjected to induction of LF by bleomycin administration (1...
July 16, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28708268/screening-protocols-to-monitor-respiratory-status-in-primary-immunodeficiency-disease-findings-from-a-european-survey-and-subclinical-infection-working-group
#6
Stephen Jolles, Silvia Sánchez-Ramón, Isabella Quinti, Pere Soler-Palacín, Carlo Agostini, Benoit Florkin, Louis-Jean Couderc, Nicholas Brodszki, Alison Jones, Hilary Longhurst, Klaus Warnatz, Filomeen Haerynck, Andrea Matucci, Esther de Vries
Many patients with primary immunodeficiency (PID) who have antibody deficiency develop progressive lung disease due to underlying subclinical infection and inflammation. To understand how these patients are monitored we conducted a retrospective survey based on patient records of 13 PID centres across Europe, regarding the care of 1,061 adult and 178 paediatric patients with PID on IgG replacement. The most common diagnosis was common variable immunodeficiency in adults (75%), and hypogammaglobulinaemia in children (39%)...
July 14, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28708093/real-time-communication-support-for-underwater-acoustic-sensor-networks-%C3%A2
#7
Rodrigo Santos, Javier Orozco, Matias Micheletto, Sergio F Ochoa, Roc Meseguer, Pere Millan, And Carlos Molina
Underwater sensor networks represent an important and promising field of research due to the large diversity of underwater ubiquitous applications that can be supported by these networks, e.g., systems that deliver tsunami and oil spill warnings, or monitor submarine ecosystems. Most of these monitoring and warning systems require real-time communication in wide area networks that have a low density of nodes. The underwater communication medium involved in these networks is very harsh and imposes strong restrictions to the communication process...
July 14, 2017: Sensors
https://www.readbyqxmd.com/read/28706580/risk-factors-for-acute-kidney-injury-after-partial-hepatectomy
#8
Luis Cesar Bredt, Luis Alberto Batista Peres
AIM: To identify risk factors for the occurrence of acute kidney injury (AKI) in the postoperative period of partial hepatectomies. METHODS: Retrospective analysis of 446 consecutive resections in 405 patients, analyzing clinical characteristics, preoperative laboratory data, intraoperative data, and postoperative laboratory data and clinical evolution. Adopting the International Club of Ascites criteria for the definition of AKI, potential predictors of AKI by logistic regression were identified...
June 28, 2017: World Journal of Hepatology
https://www.readbyqxmd.com/read/28705881/defining-a-novel-role-for-the-pdx1-transcription-factor-in-islet-%C3%AE-cell-maturation-and-proliferation-during-weaning
#9
Jason M Spaeth, Manisha Gupte, Mark Perelis, Yu-Ping Yang, Holly Cyphert, Shuangli Guo, Jin-Hua Liu, Min Guo, Joseph Bass, Mark A Magnuson, Christopher Wright, Roland Stein
The transcription factor encoded by the Pancreas Duodenum Homeobox-1 (Pdx1) gene is a critical transcriptional regulator, as it has fundamental actions in the formation of all pancreatic cell types, islet β cell development, and adult islet β cell function. Transgenic- and cell line-based experiments have identified 5'-flanking conserved sequences that control pancreatic and β cell-type-specific transcription, which are found within Area I (base pairs (bp) -2694 to -2561), II (bp -2139 to -1958), III (bp -1879 to -1799), and IV (bp -6200 to -5670)...
July 13, 2017: Diabetes
https://www.readbyqxmd.com/read/28705597/-systemic-sclerosis-and-occupational-difficulties-results-of-a-prospective-study
#10
N Peres, S Morell-Dubois, E Hachulla, P Y Hatron, A Duhamel, D Godard, A S Tellart-Mamert, M Lambert, D Launay, S Fantoni-Quinton
Between 9000 and 14000 people have systemic sclerosis (ScS) in France. The work is often affected. Our study aims to assess the frequency of professional difficulties (DP) of scleroderma patients, identify these DP, the symptoms involved and the solutions used. A heteroquestionnaire was offered to scleroderma patients the Lille University Hospital. Data were cross-checked with the clinical database of the National Observatory of scleroderma patients. We used 104 questionnaires of which 84% are women. A total of 62...
July 10, 2017: La Revue de Médecine Interne
https://www.readbyqxmd.com/read/28702558/high-performance-transparent-in-plane-silicon-nanowire-fin-tfts-via-a-robust-nano-droplet-scanning-crystallization-dynamics
#11
Mingkun Xu, Jimmy Wang, Zhaoguo Xue, Junzhuan Wang, Ping Feng, Linwei Yu, Jun Xu, Yi Shi, Kunji Chen, Pere Roca I Cabarrocas
High mobility, scalable and even transparent thin-film transistors (TFTs) are always being pursued in the field of large area electronics. While excimer laser-beam-scanning can crystallize amorphous Si (a-Si) into high mobility poly-Si, it is limited to small areas. We here demonstrate a robust nano-droplet-scanning strategy that converts an a-Si:H thin film directly into periodic poly-Si nano-channels, with the aid of well-coordinated indium droplets. This enables the robust batch-fabrication of high performance Fin-TFTs with a high hole mobility of >100 cm(2) V(-1) s(-1) and an excellent subthreshold swing of only 163 mV dec(-1), via a low temperature <350 °C thin film process...
July 12, 2017: Nanoscale
https://www.readbyqxmd.com/read/28700057/neurological-manifestations-of-dengue-in-central-brazil
#12
Marianna Peres Tassara, Adriana Oliveira Guilarde, Benigno Alberto Moraes da Rocha, Valéria Christina de Rezende Féres, Celina Maria Turchi Martelli
INTRODUCTION: The incidence of dengue has increased throughout the 2000s with a consequent global increase in atypical clinical forms. METHODS: This study reports a series of cases of neurological dengue out of 498 confirmed cases of laboratory dengue in Goiânia, Brazil. Cases were confirmed based on viral RNA detection via polymerase chain reaction or IgM antibody capture. RESULTS: Neurological symptoms occurred in 5.6% of cases, including paresthesia (3...
May 2017: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/28700021/nursing-management-practicum-impact-to-the-team-in-medical-surgical-units
#13
Clarice Maria Dall'Agnol, Andréia Peres de Oliveira, Adriana Serdotte Freitas Cardoso
Objective: Learn the perceptions of nursing professionals of a university hospital regarding the interactive process with nursing management practicum students. Methods: A qualitative, exploratory, descriptive study was conducted by means of 11 semi-structured interviews with nurses, nursing technicians and nursing aides in medical-surgical units. The information, collected between December 2013 and January 2014, was submitted to a thematic analysis and discussed according to Pichon-Rivière...
July 6, 2017: Revista Gaúcha de Enfermagem
https://www.readbyqxmd.com/read/28698324/the-women-and-their-children-s-health-watch-study-methods-and-design-of-a-prospective-cohort-study-in-louisiana-to-examine-the-health-effects-from-the-bp-oil-spill
#14
Edward S Peters, Ariane L Rung, Megan H Bronson, Meghan M Brashear, Lauren C Peres, Symielle Gaston, Samaah M Sullivan, Kate Peak, David M Abramson, Elizabeth T H Fontham, Daniel Harrington, Evrim Oral, Edward J Trapido
PURPOSE: The Deepwater Horizon Oil Spill is the largest marine oil spill in US history. Few studies have evaluated the potential health effects of this spill on the Gulf Coast community. The Women and Their Children's Health (WaTCH) study is a prospective cohort designed to investigate the midterm to long-term physical, mental and behavioural health effects of exposure to the oil spill. PARTICIPANTS: Women were recruited by telephone from pre-existing lists of individuals and households using an address-based sampling frame between 2012 and 2014...
July 10, 2017: BMJ Open
https://www.readbyqxmd.com/read/28695335/glutamatergic-system-and-mtor-signaling-pathway-participate-in-the-antidepressant-like-effect-of-inosine-in-the-tail-suspension-test
#15
Filipe Marques Gonçalves, Vivian Binder Neis, Débora Kurrle Rieger, Tanara V Peres, Mark William Lopes, Isabella A Heinrich, Ana Paula Costa, Ana Lúcia S Rodrigues, Manuella P Kaster, Rodrigo Bainy Leal
Glutamatergic system and mTOR signaling pathway have been proposed to be important targets for pharmacological treatment of major depressive disorder. Previous studies have shown that inosine, an endogenous purine, is able to exert a remarkable antidepressant-like effect in mice. Nevertheless, the role of glutamatergic system and mTOR in this effect was not previously determined. This study was designed to investigate the possible modulation of NMDA receptors (NMDAR), AMPA receptors (AMPAR) and mTOR complex 1 (mTORC1) signaling pathway in the inosine anti-immobility effect in the tail suspension test (TST) in mice...
July 10, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28692602/lipidic-overload-ice-cream-does-not-change-parameters-of-coagulation-and-blood-viscosity
#16
Gabriel Peres, Hélio Amante Miot, Hamilton Ometto Stolf, Júlio De Faveri
No abstract text is available yet for this article.
July 6, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28688140/pro-acute-on-chronic-liver-failure
#17
REVIEW
Elsa Solà, Pere Ginès
No abstract text is available yet for this article.
July 8, 2017: Liver Transplantation
https://www.readbyqxmd.com/read/28687667/membrane-tension-controls-adhesion-positioning-at-the-leading-edge-of-cells
#18
Bruno Pontes, Pascale Monzo, Laurent Gole, Anabel-Lise Le Roux, Anita Joanna Kosmalska, Zhi Yang Tam, Weiwei Luo, Sophie Kan, Virgile Viasnoff, Pere Roca-Cusachs, Lisa Tucker-Kellogg, Nils C Gauthier
Cell migration is dependent on adhesion dynamics and actin cytoskeleton remodeling at the leading edge. These events may be physically constrained by the plasma membrane. Here, we show that the mechanical signal produced by an increase in plasma membrane tension triggers the positioning of new rows of adhesions at the leading edge. During protrusion, as membrane tension increases, velocity slows, and the lamellipodium buckles upward in a myosin II-independent manner. The buckling occurs between the front of the lamellipodium, where nascent adhesions are positioned in rows, and the base of the lamellipodium, where a vinculin-dependent clutch couples actin to previously positioned adhesions...
July 7, 2017: Journal of Cell Biology
https://www.readbyqxmd.com/read/28686570/using-metagenomics-to-connect-microbial-community-biodiversity-and-functions
#19
Lucas William Mendes, Lucas Peres Palma Braga, Acacio Aparecido Navarrete, Dennis Goss de Souza, Genivaldo Gueiros Zacarias Silva, Siu Mui Tsai
Microbes constitute about a third of the Earth's biomass and are composed by an enormous genetic diversity. In a majority of environments the microbial communities play crucial roles for the ecosystem functioning, where a drastic biodiversity alteration or loss could lead to negative effects on the environment and sustainability. A central goal in microbiome studies is to elucidate the relation between microbial diversity to functions. A better understanding of the relation diversity-function would increase the ability to manipulate that diversity to improve plant and animal health and also setting conservation priorities...
July 6, 2017: Current Issues in Molecular Biology
https://www.readbyqxmd.com/read/28683357/exercise-improves-cytokine-profile-in-hiv-infected-people-a-randomized-clinical-trial
#20
Rafael Evangelista Pedro, Nadia Candido, Débora Alves Guariglia, Bruno Pereira Melo, Dennis Armando Bertolini, Sidney Barnabé Peres, Solange Marta Franzói de Moraes
PURPOSE: Verify the effects of concurrent training on cytokines in people living with HIV under antiretroviral therapy (ART) treatment. METHODS: This was a blinded, parallel-group, clinical trial, where 49 participants, divided in two groups, either control group or concurrent training group, took part in the intervention. The control group performed recreational activities and concurrent training group participated of 16-week, 3 times per week of heart rate guided-aerobic plus resistance training for major muscular groups...
July 3, 2017: Cytokine
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