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https://www.readbyqxmd.com/read/28634640/the-microbiome-of-eucalyptus-roots-under-different-management-conditions-and-its-potential-for-biological-nitrogen-fixation
#1
Eduardo da Siva Fonseca, Raquel Silva Peixoto, Alexandre Soares Rosado, Fabiano de Carvalho Balieiro, James M Tiedje, Caio Tavora Coelho da Costa Rachid
Eucalyptus plantations offer a cost-effective and renewable source of raw material. There is substantial interest in improving forestry production, especially through sustainable strategies such as the use of plant growth-promoting bacteria. However, little is known about Eucalyptus microbiology. In this study, the endophytic bacterial community was assessed in Eucalyptus urograndis roots using culture-dependent and culture-independent techniques with plants grown under different conditions. Three phyla accounted for approximately 95% of the community, with Actinobacteria corresponding to approximately 59%...
June 21, 2017: Microbial Ecology
https://www.readbyqxmd.com/read/28633331/does-timing-of-antiretroviral-treatment-influence-treatment-outcomes-of-visceral-leishmaniasis-in-northwest-ethiopia
#2
Endashaw M Aderie, Ermias Diro, Rony Zachariah, Marcio Silveira da Fonseca, Charles Abongomera, Bethabile L Dolamo, Koert Ritmeijer
Background: Visceral leishmaniasis (VL) patients with HIV co-infection should receive antiretroviral treatment (ART). However, the best timing for initiation of ART is not known. Among such individuals, we assessed the influence of ART timing on VL outcomes. Methods: A retrospective cohort study was conducted in Northwest Ethiopia among VL patients starting ART between 2008 and 2015. VL outcomes were assessed by the twelfth month of starting ART, within 4 weeks of VL diagnosis or thereafter...
March 1, 2017: Transactions of the Royal Society of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28632041/automated-volumetry-of-hippocampus-is-useful-to-confirm-unilateral-mesial-temporal-sclerosis-in-patients-with-radiologically-positive-findings
#3
Guilherme Silva, Cristina Martins, Nádia Moreira da Silva, Duarte Vieira, Dias Costa, Ricardo Rego, José Fonseca, João Paulo Silva Cunha
Background and purpose We evaluated two methods to identify mesial temporal sclerosis (MTS): visual inspection by experienced epilepsy neuroradiologists based on structural magnetic resonance imaging sequences and automated hippocampal volumetry provided by a processing pipeline based on the FMRIB Software Library. Methods This retrospective study included patients from the epilepsy monitoring unit database of our institution. All patients underwent brain magnetic resonance imaging in 1.5T and 3T scanners with protocols that included thin coronal T2, T1 and fluid-attenuated inversion recovery and isometric T1 acquisitions...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28631525/polyphenol-profile-by-uhplc-ms-ms-anti-glycation-antioxidant-and-cytotoxic-activities-of-several-samples-of-propolis-from-the-northeastern-semi-arid-region-of-brazil
#4
Jadriane de Almeida Xavier, Iara Barros Valentim, Fabiana O S Camatari, Alberto M M de Almeida, Henrique Fonseca Goulart, Jamylle Nunes de Souza Ferro, Emiliano de Oliveira Barreto, Bruno Coelho Cavalcanti, Carla B G Bottoli, Marília Oliveira Fonseca Goulart
CONTEXT: Propolis has promising biological activities. Propolis samples from the Northeast of Bahia, Brazil - sample A from Ribeira do Pombal and B, from Tucano - were investigated, with new information regarding their biological activities. OBJECTIVE: This paper describes the chemical profile, antioxidant, anti-glycation and cytotoxic activities of these propolis samples. MATERIAL AND METHODS: Ethanol extracts of these propolis samples (EEP) and their fractions were analyzed to determine total phenolic content (TPC); antioxidant capacity through DPPH(•), FRAP and lipid peroxidation; anti-glycation activity, by an in vitro glucose (10 mg/mL) bovine serum albumine (1 mg/mL) assay, during 7 d; cytotoxic activity on cancer (SF295, HCT-116, OVCAR-8, MDA-MB435, MX-1, MCF7, HL60, JURKAT, MOLT-4, K562, PC3, DU145) and normal cell lines (V79) at 0...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28629167/igg-avidity-test-in-congenital-toxoplasmosis-diagnoses-in-newborns
#5
Zulmirene Cardoso Fonseca, Isolina Maria Xavier Rodrigues, Natália Cruz E Melo, Juliana Boaventura Avelar, Ana Maria Castro, Mariza Martins Avelino
The goal of this study was to investigate the importance of IgG avidity testing in newborns (NBs) diagnosed with early congenital toxoplasmosis. We collected samples from 88 puerperae infected by Toxoplasma gondii (T. gondii) and their NBs (48 acutely-infected puerperae (AIP) and 40 chronically-infected puerperae (CIP)), from two public maternity hospitals in Goiania city, Goias, Brazil, from 2010 to 2015. Specific anti-T. gondii IgM and IgG serum levels and IgG avidity tests were evaluated using chemiluminescence...
June 18, 2017: Pathogens
https://www.readbyqxmd.com/read/28627294/polyphenolic-characterisation-and-bioactivity-of-an-oxalis-pes-caprae-l-leaf-extract
#6
Marisa C Gaspar, Diogo A Fonseca, Manuel J Antunes, Christian Frigerio, Nelson G M Gomes, M Vieira, Armanda E Santos, Maria T Cruz, Maria D Cotrim, Maria G Campos
The present work is focused on the characterisation of the polyphenolic content of an Oxalis pes-caprae L. leaf extract and on the evaluation of its bioactivity with particular interest on its vascular activity and antioxidant potential. The polyphenolic content was characterised by HPLC-DAD and LC-MS/MS. The vascular activity was evaluated according to the influence on the serotonergic and adrenergic systems of the human internal mammary artery (HIMA). Antioxidant and neuroprotective studies were also conducted...
June 18, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28627089/analysis-of-ptpn22-zfat-and-myo9b-polymorphisms-in-turner-syndrome-and-risk-of-autoimmune-disease
#7
E Villanueva-Ortega, B Ahedo, M A Fonseca-Sánchez, J Pérez-Durán, N Garibay-Nieto, M T Macías-Galavíz, Y Trujillo-Cabrera, E García-Latorre, G Queipo
Turner syndrome (TS) is one of the most common sexual chromosome abnormalities and is clearly associated with an increased risk of autoimmune diseases, particularly thyroid disease and coeliac disease (CD). Single-nucleotide polymorphism analyses have been shown to provide correlative evidence that specific genes are associated with autoimmune disease. Our aim was to study the functional polymorphic variants of PTPN22 and ZFAT in relation to thyroid disease and those of MYO9B in relation to CD. A cross-sectional comparative analysis was performed on Mexican mestizo patients with TS and age-matched healthy females...
June 18, 2017: International Journal of Immunogenetics
https://www.readbyqxmd.com/read/28626969/different-patterns-of-expression-of-cell-cycle-control-and-local-invasion-related-proteins-in-oral-squamous-cell-carcinoma-affecting-young-patients
#8
Marisol Miranda Galvis, Alan Roger Santos-Silva, Juscelino Freitas Jardim, Felipe Paiva Fonseca, Marcio A Lopes, Oslei P Almeida, Clóvis A Lópes Pinto, Estela Kaminagakura, Iris Sawazaki-Calone, Paul M Speight, Luiz Paulo Kowalski
Oral squamous cell carcinoma (OSCC) predominantly affects males in the fifth decade of life; nevertheless, an increased incidence in young patients has been reported worldwide and the clinical and behavioral characteristics of tumors in this group are controversial and the literature shows divergent results PURPOSE: To investigate the clinicopathological features and prognostic significance of the immunoexpression of cell cycle and local invasion proteins in OSCC affecting young patients (≤ 40 years old) METHODS: A tissue microarray was performed with 132 OSCC samples (61 cases of young patients vs...
June 19, 2017: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/28625813/neurogenesis-in-the-aging-brain
#9
REVIEW
Deana M Apple, Rene Solano-Fonseca, Erzsebet Kokovay
Adult neurogenesis is the process of producing new neurons from neural stem cells (NSCs) for integration into the brain circuitry. Neurogenesis occurs throughout life in the ventricular-subventricular zone (V-SVZ) of the lateral ventricle and the subgranular zone (SGZ) of the hippocampal dentate gyrus. However, during aging, NSCs and their progenitors exhibit reduced proliferation and neuron production, which is thought to contribute to age-related cognitive impairment and reduced plasticity that is necessary for some types of brain repair...
June 15, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28623704/graphene-poly-nickel-complex-as-novel-electrochromic-nanocomposite-for-the-fabrication-of-a-robust-solid-state-device
#10
Mariana P Araújo, Marta Nunes, Joana Fonseca, Cosme Moura, Robert Hillman, Cristina Freire
An electrochromic nanocomposite based on a nickel-salen polymeric film - poly[Ni(3-Mesalen)], Mesalen=N,N'-bis(3-methylsalicylideneiminate) - and graphene nanoplatelets (GFNPs) with enhanced electrochromic stability was successfully prepared by anodic electropolymerization. Although the electrochemical processes typical of the polymer film were not changed by the presence of graphene, higher electroactive surface coverages could be obtained for nanocomposite films, which suggest the incorporation of GFNPs into the polymeric network...
June 8, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28623607/presenilin-1-targeted-morpholino-induces-cognitive-deficits-increased-brain-a%C3%AE-1-42-and-decreased-synaptic-marker-psd-95-in-zebrafish-larvae
#11
Laura Roesler Nery, Natalia Eltz Silva, Raphaela Fonseca, Monica Ryff Moreira Vianna
Presenilins are transmembrane proteases required for the proteolytic cleavage of Notch and also act as the catalytic core of the γ-secretase complex, which is responsible for the final cleavage of the amyloid precursor protein into Amyloid-β (Aβ) peptides of varying lengths. Presenilin-1 gene (psen1) mutations are the main cause of early-onset autosomal-dominant Familial Alzheimer Disease. Elucidating the roles of Presenilin-1 and other hallmark proteins involved in Alzheimer's disease is crucial for understanding the disease etiology and underlying molecular mechanisms...
June 16, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28618986/inflammatory-and-oxidative-stress-markers-as-indicator-of-atherogenesis-in-rats-antioxidants-as-preventive-pharmacological-methods
#12
Maria Del Carmen Baez, Mariana Tarán, María de La Paz Scribano, Ariel Balceda, Carla Buonanotte, Sergio Blencio, Ismael Fonseca, Monica Moya
The oxidative process in atherogenesis generated by proinflammatory induction and response to antioxidants vitamins in an experimental model were analyzed. METHODS: Male rats were used: (A)Control, (B)Control+vitamin E plus C, (C)Hyperfibrinogenemia and (D)Hyperfibrinogenemia+vitamins E plus C. Hyperfibrinogenemia induced by daily injection of adrenaline (0.1mg/day/rat) for 120 days. TREATMENT: 3.42 mg/kg of vitamin E plus 2.14 mg/kg of vitamin C, fifteen days after induction...
June 16, 2017: Anti-inflammatory & Anti-allergy Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/28617936/t-follicular-regulatory-cells-in-mice-and-men
#13
REVIEW
Ana Raquel Maceiras, Valter R Fonseca, Ana Agua-Doce, Luis Graca
It has long been known that CD4 T cells are necessary to provide help to B cells, triggering a germinal center (GC) reaction where affinity maturation and isotype switching occurs. However, the nature of the dedicated CD4 helper T cells, known as T follicular helper (Tfh), was only recently described. Here, we review the biology and function of the recently described T follicular regulatory (Tfr) cells, another CD4 T cell population also found within GCs but with regulatory function and characteristics. Tfr cells have been identified in mice and humans as simultaneously, presenting simultaneously characteristics of T follicular cells (namely CXCR5 expression) and regulatory T cells (including Foxp3 expression)...
June 15, 2017: Immunology
https://www.readbyqxmd.com/read/28615234/impact-of-routine-fractional-flow-reserve-on-management-decision-and-1-year-clinical-outcome-of-patients-with-acute-coronary-syndromes-prime-ffr-insights-from-the-post-it-portuguese-study-on-the-evaluation-of-ffr-guided-treatment-of-coronary-disease-and-r3f
#14
Eric Van Belle, Sergio-Bravo Baptista, Luís Raposo, John Henderson, Gilles Rioufol, Lino Santos, Christophe Pouillot, Ruben Ramos, Thomas Cuisset, Rita Calé, Emmanuel Teiger, Elisabete Jorge, Loic Belle, Carina Machado, Didier Barreau, Marco Costa, Michel Hanssen, Eduardo Oliveira, Cyril Besnard, João Costa, Jean Dallongeville, João Pipa, Georgios Sideris, Nuno Fonseca, Christophe Bretelle, Jorge Guardado, Nicolas Lhoest, Bruno Silva, Pierre Barnay, Maria-João Sousa, Laurent Leborgne, João Carlos Silva, Flavien Vincent, Alberto Rodrigues, Luís Seca, Renato Fernandes, Patrick Dupouy
BACKGROUND: Fractional flow reserve (FFR) is not firmly established as a guide to treatment in patients with acute coronary syndromes (ACS). Primary goals were to evaluate the impact of integrating FFR on management decisions and on clinical outcome of patients with ACS undergoing coronary angiography, as compared with patients with stable coronary artery disease. METHODS AND RESULTS: R3F (French FFR Registry) and POST-IT (Portuguese Study on the Evaluation of FFR-Guided Treatment of Coronary Disease), sharing a common design, were pooled as PRIME-FFR (Insights From the POST-IT and R3F Integrated Multicenter Registries - Implementation of FFR in Routine Practice)...
June 2017: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28615064/anti-toxoplasma-gondii-antibodies-in-patients-with-beta-hemoglobinopathies-the-first-report-in-the-americas
#15
Marina Neves Ferreira, Claudia Regina Bonini-Domingos, Isabeth Fonseca Estevão, Clarice Lopes de Castro Lobo, Gisele Cristina Souza Carrocini, Aparecida Perpétuo Silveira-Carvalho, Octávio Ricci, Luiz Carlos de Mattos, Cinara Cássia Brandão de Mattos
BACKGROUND: In Brazil, there have been no previous studies of Toxoplasma gondii infection in sickle cell anemia patients and carriers of severe forms of beta-thalassemia. This study evaluated T. gondii infection in patients with beta-hemoglobinopathies. METHODS: A total of 158 samples, 77 (48.7%) men and 81 (51.3%) women, were evaluated. Three groups were formed: G1 (85 patients with sickle cell disease); G2 (11 patients with homozygous beta-thalassemia; G3 (62 patients with heterozygous beta-thalassemia)...
June 14, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28614536/implications-of-alcoholic-cirrhosis-in-atherosclerosis-of-autopsied-patients
#16
Luciano Alves Matias da Silveira, Bianca Gonçalves Silva Torquato, Mariana Silva Oliveira, Guilherme Ribeiro Juliano, Lívia Ferreira Oliveira, Camila Lourencini Cavellani, Luciana Santos Ramalho, Ana Paula Espindula, Vicente de Paula Antunes Teixeira, Mara Lúcia Fonseca Ferraz
Introduction: Alcoholism is a major public health problem, which has a high social cost and affects many aspects of human activity. Liver disease is one of the first consequences of alcohol abuse, and steatosis, liver cirrhosis and hepatitis may occur. Other organs are also affected with pathological changes, such as pancreatitis, cardiomyopathies, dyslipidemias and atherosclerosis. Objective: To identify the occurrence and degree of atherosclerosis in alcohol-dependent individuals with liver cirrhosis, observing macroscopic and microscopic changes in lipid and collagen deposits and in the liver...
April 2017: Revista da Associação Médica Brasileira
https://www.readbyqxmd.com/read/28614439/residual-volume-in-vials-of-antibiotics-used-in-pediatrics
#17
Caroline Magna Pessoa Chaves, Carolina Martins Bezerra, Francisca Elisângela Teixeira Lima, Maria Vera Lúcia Moreira Leitão Cardoso, Said Gonçalves da Cruz Fonseca, Viviane Martins da Silva
OBJECTIVE: Quantifying residual volume contained in vials of antibiotics used in pediatrics. METHOD: This is an experiment involving samples from vials of antibiotics used in a pediatric hospital. Residual volume was identified by calculating the difference in weight measurement before and after the vials were washed. Evaluation of the residual volume difference in the vials was determined by the Wilcoxon non-parametric test for a sample and established at a significance level of 5%...
June 12, 2017: Revista da Escola de Enfermagem da U S P
https://www.readbyqxmd.com/read/28612201/supportive-care-in-pancreatic-ductal-adenocarcinoma
#18
REVIEW
B Laquente, A Calsina-Berna, A Carmona-Bayonas, P Jiménez-Fonseca, I Peiró, A Carrato
Pancreatic ductal adenocarcinoma (PDAC) is one of the cancers with poorest prognosis and represents the third leading cause of cancer-related deaths in Western countries. Despite advances in diagnostic procedures and treatment, diagnosis is made in most cases when the disease is locally advanced or metastatic. Supportive care aims to improve symptoms, reduce hospital admission rates, and preserve quality of life. Proper symptomatic management is critical to allow administration of chemotherapy and radiotherapy...
June 13, 2017: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/28611692/development-of-a-mobile-phone-addiction-craving-scale-and-its-validation-in-a-spanish-adult-population
#19
José De-Sola, Hernán Talledo, Gabriel Rubio, Fernando Rodríguez de Fonseca
In some people, problematic cell phone use can lead to situations in which they lose control, similar to those observed in other cases of addiction. Although different scales have been developed to assess its severity, we lack an instrument that is able to determine the desire or craving associated with it. Thus, with the objective of evaluating craving for cell phone use, in this study, we develop and present the Mobile Phone Addiction Craving Scale (MPACS). It consists of eight Likert-style items, with 10 response options, referring to possible situations in which the interviewee is asked to evaluate the degree of restlessness that he or she feels if the cell phone is unavailable at the moment...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28609297/online-pretreatment-verification-of-high-dose-rate-brachytherapy-using-an-imaging-panel
#20
Gabriel P Fonseca, Mark Podesta, Murillo Bellezzo, Michiel R Van den Bosch, Ludy Lutgens, Ben G L Vanneste, Robert Voncken, Evert J Van Limbergen, Brigitte Reniers, Frank Verhaegen
Brachytherapy is employed to treat a wide variety of cancers. However, an accurate treatment verification method is currently not available. This study describes a pre-treatment verification system that uses an imaging panel (IP) to verify important aspects of the treatment plan. A detailed modelling of the IP was only possible with an extensive calibration performed using a robotic arm. Irradiations were performed with a high dose rate (HDR) (192)Ir source within a water phantom. An empirical fit was applied to measure the distance between the source and the detector so 3D Cartesian coordinates of the dwell positions can be obtained using a single panel...
July 7, 2017: Physics in Medicine and Biology
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