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https://www.readbyqxmd.com/read/29157036/epigallocatechin-3-o-gallate-alleviates-the-malignant-phenotype-in-a-431-epidermoid-and-sk-br-3-breast-cancer-cell-lines
#1
Alexandru Filippi, Tiphanie Picot, Carmen Mariana Aanei, Péter Nagy, János Szöllősi, Lydia Campos, Constanţa Ganea, Maria-Magdalena Mocanu
In this study, we evaluated the effects of epigallocatechin-3-O-gallate (EGCG) in two cancer cell lines, A-431 overexpressing ErbB1 and SK-BR-3, overexpressing ErbB2. EGCG treatment showed dose-dependent collapse of mitochondrial membrane potential (Δψm), increase in reactive oxygen species (ROS) production, changes in nuclear morphology and reduced viability. Flow cytometry data indicated that EGCG partially decreases the phosphorylation of several proteins involved in cell proliferation and survival: pErbB1(Y1173, Y1068), pAkt(S473) and pERK(Y204)...
November 21, 2017: International Journal of Food Sciences and Nutrition
https://www.readbyqxmd.com/read/29127811/distribution-and-incidence-of-atoxigenic-aspergillus-flavus-vcg-in-tree-crop-orchards-in-california-a-strategy-for-identifying-potential-antagonists-the-example-of-almonds
#2
Adeline Picot, Mark Doster, Md-Sajedul Islam, Kenneth Callicott, Alejandro Ortega-Beltran, Peter Cotty, Themis Michailides
To identify predominant isolates for potential use as biocontrol agents, Aspergillus flavus isolates collected from soils of almond, pistachio and fig orchard in the Central Valley of California were tested for their membership to 16 atoxigenic vegetative compatibility groups (VCGs), including YV36, the VCG to which AF36, an atoxigenic isolate commercialized in the United States as biopesticide, belongs. A surprisingly large proportion of isolates belonged to YV36 (13.3%, 7.2% and 6.6% of the total almond, pistachio and fig populations, respectively), while the percentage of isolates belonging to the other 15 VCGs ranged from 0% to 2...
January 16, 2018: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/29100908/quality-of-life-in-children-participating-in-a-non-selective-inr-self-monitoring-vka-education-programme
#3
Pascal Amedro, Fanny Bajolle, Helena Bertet, Radhia Cheurfi, Dominique Lasne, Erika Nogue, Pascal Auquier, Marie-Christine Picot, Damien Bonnet
BACKGROUND: The quality of life (QoL) of children receiving vitamin K antagonist (VKA) treatment has been scarcely studied. AIM: To assess QoL of children, and its evolution, throughout our non-selective international normalized ratio (INR) self-monitoring education programme. METHODS: Children and parents completed QoL questionnaires (Qualin, PedsQL) during education sessions. Scores were compared with those from controls. RESULTS: A total of 111 children (mean±standard deviation age 8...
October 31, 2017: Archives of Cardiovascular Diseases
https://www.readbyqxmd.com/read/29080311/the-framing-of-research-questions-using-the-picot-format-in-randomized-controlled-trials-of-venous-ulcer-disease-is-sub-optimal-a-systematic-survey
#4
Luciana P F Abbade, Mei Wang, Kamath Sriganesh, Yanling Jin, Lawrence Mbuagbaw, Lehana Thabane
Despite several publications on venous ulcers, there is still a lack of evidence from randomized controlled trials (RCTs) to support certain treatments for patients with this disorder. Well-designed research questions using the PICOT (Population; Intervention; Comparator; Outcome; Time-frame) format in RCTs can improve the quality of research. The objectives of this study were to assess how the PICOT format is used to frame research questions in RCTs published on venous ulcer disease and to determine the factors associated with better adherence to the PICOT format...
October 28, 2017: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/29045307/prevalence-of-antipsychotic-treated-patients-in-a-cohort-of-adult-addicted-patients
#5
Hélène Peyrière, Caroline Diot, Erika Nogue, Marie Verschave, Morgan Laure, Marie-Christine Picot, Pierre Petit, Hélène Donnadieu-Rigole, Yves Leglise
PURPOSE: The objective of this cross-sectional study was to describe and estimate the prevalence of antipsychotics (AP) in a cohort of addicted patients, and to compare the profiles of addictive patients receiving AP or not. METHODS: We included all adult patients seen at the addiction care center of Montpellier University Hospital, between January 1, 2015, and March 31, 2015. Demographic, clinical, and therapeutic data were collected from the patients' medical records...
October 17, 2017: Journal of Clinical Psychopharmacology
https://www.readbyqxmd.com/read/29026971/is-impaired-cerebral-vasoreactivity-an-early-marker-of-cognitive-decline-in-multiple-sclerosis-patients
#6
Aude Metzger, Emmanuelle Le Bars, Jeremy Deverdun, François Molino, Bénédicte Maréchal, Marie-Christine Picot, Xavier Ayrignac, Clarisse Carra, Luc Bauchet, Alexandre Krainik, Pierre Labauge, Nicolas Menjot de Champfleur
OBJECTIVE: The link between cerebral vasoreactivity and cognitive status in multiple sclerosis remains unclear. The aim of the present study was to investigate a potential decrease of cerebral vasoreactivity in multiple sclerosis patients and correlate it with cognitive status. METHODS: Thirty-three patients with multiple sclerosis (nine progressive and 24 remitting forms, median age: 39 years, 12 males) and 22 controls underwent MRI with a hypercapnic challenge to assess cerebral vasoreactivity and a neuropsychological assessment...
October 12, 2017: European Radiology
https://www.readbyqxmd.com/read/28986035/estimating-the-full-public-health-value-of-vaccination
#7
Bradford D Gessner, David Kaslow, Jacques Louis, Kathleen Neuzil, Katherine L O'Brien, Valentina Picot, Tikki Pang, Umesh D Parashar, Mitra Saadatian-Elahi, Christopher B Nelson
There is an enhanced focus on considering the full public health value (FPHV) of vaccination when setting priorities, making regulatory decisions and establishing implementation policy for public health activities. Historically, a therapeutic paradigm has been applied to the evaluation of prophylactic vaccines and focuses on an individual benefit-risk assessment in prospective and individually-randomized phase III trials to assess safety and efficacy against etiologically-confirmed clinical outcomes. By contrast, a public health paradigm considers the population impact and encompasses measures of community benefits against a range of outcomes...
October 3, 2017: Vaccine
https://www.readbyqxmd.com/read/28983797/clinical-factors-associated-with-decision-to-recommend-methylphenidate-treatment-for-children-with-adhd-in-france
#8
Elodie Courtabessis, Florence Pupier, Laurie Surig, Marie-Christine Picot, Erika Nogué, Valérie Macioce, Elizabeth Stein, Diane Purper-Ouakil
European guidelines advise on best practices for the diagnosis and non-pharmacological and pharmacological treatment of attention-deficit hyperactivity disorder (ADHD). This study aimed to (1) assess whether clinician's decisions to initiate methylphenidate treatment in children diagnosed with ADHD are in accordance with European guidelines and (2) identify clinical factors associated with the decision to recommend methylphenidate prescription. 5 to 13-year-old patients with an ADHD diagnosis were consecutively evaluated in an outpatient child and adolescent psychiatry clinic in France...
October 5, 2017: European Child & Adolescent Psychiatry
https://www.readbyqxmd.com/read/28947166/upper-limb-isokinetic-strengthening-versus-passive-mobilization-in-patients-with-chronic-stroke-a-randomized-controlled-trial
#9
F Coroian, C Jourdan, K Bakhti, C Palayer, A Jaussent, M C Picot, D Mottet, M Julia, H Y Bonnin, I Laffont
OBJECTIVE: To assess the benefit of isokinetic strengthening (IS) of the upper limb (UL) in chronic stroke patients, compared to passive mobilization. DESIGN: Randomized blinded assessor controlled trial. SETTING: PRM departments of two University Hospitals. PARTICIPANTS: 20 patients with incomplete hemiplegia, 16 men, mean age 64 years, median time since stroke 32 months. INTERVENTION: A 6-week comprehensive rehabilitation program, 3 days/week, three sessions/day...
September 22, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28937610/a-methodology-for-the-design-of-application-specific-cyber-physical-social-sensing-co-simulators
#10
Borja Bordel Sánchez, Ramón Alcarria, Álvaro Sánchez-Picot, Diego Sánchez-de-Rivera
Cyber-Physical Social Sensing (CPSS) is a new trend in the context of pervasive sensing. In these new systems, various domains coexist in time, evolve together and influence each other. Thus, application-specific tools are necessary for specifying and validating designs and simulating systems. However, nowadays, different tools are employed to simulate each domain independently. Mainly, the cause of the lack of co-simulation instruments to simulate all domains together is the extreme difficulty of combining and synchronizing various tools...
September 22, 2017: Sensors
https://www.readbyqxmd.com/read/28919545/mechanisms-behind-tb-hbv-and-hiv-chronic-infections
#11
David Durantel, Inca Kusters, Jacques Louis, Nicolas Manel, Tom H M Ottenhoff, Valentina Picot, Mitra Saaadatian-Elahi
Immune evasion is critical for pathogens to maintain their presence within hosts, giving rise to chronic infections. Here, we examine the immune evasion strategies employed by three pathogens with high medical burden, namely, tuberculosis, HIV and HBV. Establishment of chronic infection by these pathogens is a multi-step process that involves an interplay between restriction factor, innate immunity and adaptive immunity. Engagement of these host defences is intimately linked with specific steps within the pathogen replication cycles...
September 13, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28911263/potential-role-of-oct4-in-leukemogenesis
#12
Tiphanie Picot, Sanae Kesr, Yuenv Wu, Carmen Mariana Aanei, Pascale Flandrin-Gresta, Sylvie Tondeur, Emmanuelle Tavernier, Eric Wattel, Denis Guyotat, Lydia Campos
Embryonic stem cells typically show properties of long-term self-renewal and lack of differentiation. When appropriately stimulated, they are able to differentiate into all cell lineages, and lose their self-renewal characteristics. These properties are controlled by a series of genes encoding several transcription factors, including OCT4, the product of POU5F1 gene. OCT4 is expressed in germ cell tumors but also aberrantly in cancers developing in differentiated tissues. In a previous study, we observed a high expression of OCT4 in acute myeloid cell lines and primary cells, regardless of the acute myeloid leukemia (AML) subtype...
November 15, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28902709/effect-of-food-deprivation-on-the-hypothalamic-gene-expression-of-the-secretogranin-ii-derived-peptide-em66-in-rat
#13
Fatima Trebak, Isabelle Dubuc, Marie Picot, Abdelilah Alaoui, Jérôme Leprince, Gaëtan Prévost, Youssef Anouar, Rabia Magoul, Nicolas Chartrel
EM66 is a peptide derived from the chromogranin, secretogranin II (SG-II). Recent findings in mice indicate that EM66 is a novel anorexigenic neuropeptide that regulates hypothalamic feeding behavior, at least in part, by activating the POMC neurons of the arcuate nucleus. The present study aimed to investigate the mechanism of action of EM66 in the control of feeding behavior and, more specifically, its potential interactions with the NPY and POMC systems in rat. We analyzed by Q-PCR the gene expression of the EM66 precursor, SG-II, in hypothalamic extracts following 2, 3, or 4 days of food deprivation and compared it with the expression levels of the two major neuropeptidergic systems, that is, POMC and NPY, modulating feeding behavior...
November 8, 2017: Neuroreport
https://www.readbyqxmd.com/read/28874730/a-comprehensive-characterization-of-the-impact-of-mycophenolic-acid-on-the-metabolism-of-jurkat-t-cells
#14
Ana A Fernández-Ramos, Catherine Marchetti-Laurent, Virginie Poindessous, Samantha Antonio, Céline Petitgas, Irène Ceballos-Picot, Pierre Laurent-Puig, Sylvie Bortoli, Marie-Anne Loriot, Nicolas Pallet
Metabolic reprogramming is critical for T cell fate and polarization and is regulated by metabolic checkpoints, including Myc, HIF-1α, AMPK and mTORC1. Our objective was to determine the impact of mycophenolic acid (MPA) in comparison with rapamycin (Rapa), an inhibitor of mTORC1, on the metabolism of Jurkat T cells. We identified a drug-specific transcriptome signature consisting of the key enzymes and transporters involved in glycolysis, glutaminolysis or nucleotide synthesis. MPA produced an early and transient drop in the intracellular ATP content related to the inhibition of de novo synthesis of purines, leading to the activation of the energy sensor AMPK...
September 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28851493/evaluation-of-quantitative-ftd-pneumocystis-jirovecii-kit-for-pneumocystis-infection-diagnosis
#15
Gautier Hoarau, Solène Le Gal, Patricia Zunic, Patrice Poubeau, Emmanuel Antok, Julien Jaubert, Gilles Nevez, Sandrine Picot
We evaluated the Fast track Diagnostics (FTD) Pneumocystis PCR kit, targeting the mitochondrial large subunit ribosomal RNA gene (mtLSU rRNA) of Pneumocystis jirovecii (P. jirovecii). A hundred and thirty-three patients were prospectively enrolled. Respiratory specimens were examined using both microscopy and the PCR assay. Twenty-six patients led to P. jirovecii detection. Fourteen patients presented with Pneumocystis pneumonia (PCP) whereas 12 patients were considered to be colonized. The median copy numbers in bronchoalveolar lavage fluid were significantly different in the PCP and colonization groups (1...
August 9, 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/28810865/cryptic-plasmodium-ovale-concurrent-with-mixed-plasmodium-falciparum-and-plasmodium-malariae-infection-in-two-children-from-central-african-republic
#16
Cynthia Bichara, Philippe Flahaut, Damien Costa, Anne-Lise Bienvenu, Stephane Picot, Gilles Gargala
BACKGROUND: Since several malaria parasite species are usually present in a particular area, co-infections with more than one species of Plasmodium are more likely to occur in humans infected in these areas. In many mixed infections, parasite densities of the cryptic species may be low and often not recognized in clinical practice. CASE PRESENTATION: Two children (3 and 6 years old) adopted recently from Central African Republic were admitted to hospital because of intermittent fever...
August 15, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28807858/host-specificity-pathogen-exposure-and-superinfections-impact-the-distribution-of-anaplasma-phagocytophilum-genotypes-in-ticks-roe-deer-and-livestock-in-a-fragmented-agricultural-landscape
#17
Amélie Chastagner, Angélique Pion, Hélène Verheyden, Bruno Lourtet, Bruno Cargnelutti, Denis Picot, Valérie Poux, Émilie Bard, Olivier Plantard, Karen D McCoy, Agnes Leblond, Gwenaël Vourc'h, Xavier Bailly
Anaplasma phagocytophilum is a bacterial pathogen mainly transmitted by Ixodes ricinus ticks in Europe. It infects wild mammals, livestock, and, occasionally, humans. Roe deer are considered to be the major reservoir, but the genotypes they carry differ from those that are found in livestock and humans. Here, we investigated whether roe deer were the main source of the A. phagocytophilum genotypes circulating in questing I. ricinus nymphs in a fragmented agricultural landscape in France. First, we assessed pathogen prevalence in 1837 I...
August 12, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28753541/health-related-quality-of-life-among-children-with-turner-syndrome-controlled-cross-sectional-study
#18
Pascal Amedro, Nabil Tahhan, Helena Bertet, Claire Jeandel, Sophie Guillaumont, Thibault Mura, Marie-Christine Picot
BACKGROUND: The aim of the study was to assess health-related quality of life (HR-QoL) in children with Turner syndrome in comparison with controls. METHODS: We prospectively recruited 16 female girls with Turner syndrome (mean age 15.2±2.6 years) and 78 female controls (mean age 12.7±2.8 years) in randomly selected schools. We used the PedsQL, a generic HR-QoL questionnaire (self and parents' versions). RESULTS: Global HR-QoL scores in Turner syndrome were lower than controls for self-reports (respectively, 74...
August 28, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28719310/severity-of-pneumonia-in-under-5-year-old-children-from-developing-countries-a-multicenter-prospective-observational-study
#19
MULTICENTER STUDY
Thomas Bénet, Valentina Sanchez Picot, Shally Awasthi, Nitin Pandey, Ashish Bavdekar, Anand Kawade, Annick Robinson, Mala Rakoto-Andrianarivelo, Maryam Sylla, Souleymane Diallo, Graciela Russomando, Wilma Basualdo, Florence Komurian-Pradel, Hubert Endtz, Philippe Vanhems, Gláucia Paranhos-Baccalà, For The Gabriel Network
Pneumonia is the leading cause of death in children. The objectives were to evaluate the microbiological agents linked with hypoxemia in hospitalized children with pneumonia from developing countries, to identify predictors of hypoxemia, and to characterize factors associated with in-hospital mortality. A multicenter, observational study was conducted in five hospitals, from India (Lucknow, Vadu), Madagascar (Antananarivo), Mali (Bamako), and Paraguay (San Lorenzo). Children aged 2-60 months with radiologically confirmed pneumonia were enrolled prospectively...
July 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28718379/expression-of-embryonic-stem-cell-markers-in-acute-myeloid-leukemia
#20
Tiphanie Picot, Carmen Mariana Aanei, Amandine Fayard, Pascale Flandrin-Gresta, Sylvie Tondeur, Marina Gouttenoire, Emmanuelle Tavernier-Tardy, Eric Wattel, Denis Guyotat, Lydia Campos
Acute myeloid leukemia is driven by leukemic stem cells which can be identified by cross lineage expression or arrest of differentiation compared to normal hematopoietic stem cells. Self-renewal and lack of differentiation are also features of stem cells and have been associated with the expression of embryonic genes. The aim of our study was to evaluate the expression of embryonic antigens (OCT4, NANOG, SOX2, SSEA1, SSEA3) in hematopoietic stem cell subsets (CD34(+)CD38(-) and CD34(+)CD38(+)) from normal bone marrows and in samples from acute myeloid leukemia patients...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
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