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https://www.readbyqxmd.com/read/27914363/new-insights-into-the-sar-and-drug-combination-synergy-of-2-quinolin-4-yloxy-acetamides-against-mycobacterium-tuberculosis
#1
Bruno Couto Giacobbo, Kenia Pissinate, Valnês Rodrigues-Junior, Anne Drumond Villela, Estêvão Silveira Grams, Bruno Lopes Abbadi, Fernanda Teixeira Subtil, Nathalia Sperotto, Rogério Valim Trindade, Davi Fernando Back, Maria Martha Campos, Luiz Augusto Basso, Pablo Machado, Diógenes Santiago Santos
2-(Quinolin-4-yloxy)acetamides have been described as potent and selective in vitro inhibitors of Mycobacterium tuberculosis (Mtb) growth. Herein, a new series of optimized compounds were found to demonstrate highly potent antitubercular activity, with minimum inhibitory concentration (MIC) values against drug-susceptible and drug-resistant Mycobacterium tuberculosis strains in the submicromolar range. Furthermore, the most active compounds had no apparent toxicity to mammalian cells, and they showed intracellular activities similar to those of isoniazid and rifampin in a macrophage model of Mtb infection...
November 23, 2016: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/27912813/regenerative-endodontic-procedures-clinical-outcomes
#2
REVIEW
Anibal Diogenes, Nikita B Ruparel
Immature teeth are at risk for pulp necrosis, resulting in arrested root development and poor long-term prognosis. There is growing evidence that regenerative endodontic procedures promote desirable clinical outcomes. Despite significant advances in the field of regenerative endodontics and acceptable clinical outcomes, current evidence suggests that the tissues formed following currently used procedures do not completely recapitulate the former pulp-dentin complex. Further research is needed to identify prognostic factors and predictors of successful outcomes and to develop different treatment strategies to better predictably achieve all identified clinical outcomes, while favoring tissue formation that more closely resembles the pulp-dentin complex...
January 2017: Dental Clinics of North America
https://www.readbyqxmd.com/read/27906997/role-of-genetic-polymorphisms-in-the-development-and-prognosis-of-sporadic-and-familial-prostate-cancer
#3
Sabrina T Reis, Nayara I Viana, Katia R M Leite, Erico Diogenes, Alberto A Antunes, Alexandre Iscaife, Adriano J Nesrallah, Carlo C Passerotti, Victor Srougi, José Pontes-Junior, Mary Ellen Salles, William C Nahas, Miguel Srougi
BACKGROUNDS: Our aim was to evaluate the role of 20 genetic polymorphisms in the development and prognosis of sporadic and familial PC. A case-control study of 185 patients who underwent radical prostatectomy from 1997 to 2011. These patients were divided into two groups based on their family history. Gleason grade, PSA value and pathological TNM 2002 stage were used as prognostic factors. Blood samples from 70 men without PC were used as controls. The SNPs were genotyped using a TaqMan® SNP Genotyping Assay Kit...
2016: PloS One
https://www.readbyqxmd.com/read/27903722/adenosine-kinase-deficiency-in-the-brain-results-in-maladaptive-synaptic-plasticity
#4
Ursula S Sandau, Mariana Colino-Oliveira, Abbie Jones, Bounmy Saleumvong, Shayla Q Coffman, Long Liu, Catarina Miranda-Lourenço, Cátia Palminha, Vânia L Batalha, Yiming Xu, Yuqing Huo, Maria J Diógenes, Ana M Sebastião, Detlev Boison
: Adenosine kinase (ADK) deficiency in human patients (OMIM:614300) disrupts the methionine cycle and triggers hypermethioninemia, hepatic encephalopathy, cognitive impairment, and seizures. To identify whether this neurological phenotype is intrinsically based on ADK deficiency in the brain or if it is secondary to liver dysfunction, we generated a mouse model with a brain-wide deletion of ADK by introducing a Nestin-Cre transgene into a line of conditional ADK deficient Adk(fl/fl) mice...
November 30, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27889488/enhanced-ltp-in-aged-rats-detrimental-or-compensatory
#5
Júlia Pinho, Ruben Vale, Vânia L Batalha, Ana Rita Costenla, Raquel Dias, Diogo Rombo, Ana M Sebastião, Alexandre de Mendonça, Maria José Diógenes
Age-dependent memory deterioration has been well documented and yet an increase in rat hippocampal LTP upon aging has been reported. This poses the question of whether the enhanced LTP is a cause or an attempt to compensate the memory deficits described in aged rats. Hippocampal slices from young, adult and aged Wistar rats were pre-incubated, with an NMDA receptor (NMDAR) antagonist, memantine (1 μM, 4 h), and hippocampal LTP was evaluated. The results show that memantine significantly decreases the larger LTP magnitude recorded in hippocampal slices from aged rats without compromising LTP recorded in slices from young and adult animals...
November 23, 2016: Neuropharmacology
https://www.readbyqxmd.com/read/27888112/satellite-cell-activation-induced-by-aerobic-muscle-adaptation-in-response-to-endurance-exercise-in-humans-and-rodents
#6
REVIEW
Phablo Abreu, Sávio Victor Diógenes Mendes, Vânia Marilande Ceccatto, Sandro Massao Hirabara
Although the requirement of satellite cells activation and expansion following injury, mechanical load or growth stimulus provoked by resistance exercise has been well established, their function in response to aerobic exercise adaptation remains unclear. A clear relationship between satellite cell expansion in fiber-type specific myosin heavy chain and aerobic performance has been related, independent of myonuclear accretion or muscle growth. However, the trigger for this activation process is not fully understood yet and it seems to be a multi-faceted and well-orchestrated process...
November 22, 2016: Life Sciences
https://www.readbyqxmd.com/read/27880844/atorvastatin-improves-ventricular-remodeling-after-myocardial-infarction-by-interfering-with-collagen-metabolism
#7
Karla Reichert, Helison Rafael Pereira do Carmo, Anali Galluce Torina, Daniela Diógenes de Carvalho, Andrei Carvalho Sposito, Karlos Alexandre de Souza Vilarinho, Lindemberg da Mota Silveira-Filho, Pedro Paulo Martins de Oliveira, Orlando Petrucci
PURPOSE: Therapeutic strategies that modulate ventricular remodeling can be useful after acute myocardial infarction (MI). In particular, statins may exert effects on molecular pathways involved in collagen metabolism. The aim of this study was to determine whether treatment with atorvastatin for 4 weeks would lead to changes in collagen metabolism and ventricular remodeling in a rat model of MI. METHODS: Male Wistar rats were used in this study. MI was induced in rats by ligation of the left anterior descending coronary artery (LAD)...
2016: PloS One
https://www.readbyqxmd.com/read/27868275/effectiveness-and-safety-of-drugs-used-for-stroke-prevention-in-a-cohort-of-non-valvular-atrial-fibrillation-patients-from-a-primary-care-electronic-database
#8
Maria Giner-Soriano, Albert Roso-Llorach, Cristina Vedia Urgell, Xavier Castells, Dolors Capellà, Ignacio Ferreira-González, Josep Maria Elorza-Ricart, Marc Casajuana, Amelia Troncoso Mariño, Eduard Diògene, Bonaventura Bolíbar, Concepció Violan, Rosa Morros
PURPOSE: The aim of this study was to assess effectiveness and safety of antithrombotics for stroke prevention in non-valvular atrial fibrillation in real-use conditions. METHODS: We used a population-based retrospective cohort study. Information emerges from SIDIAP, a database containing anonymized information from electronic health records from 274 primary healthcare centres of the Catalan Health Institute, Catalonia (Spain), with a reference population of 5 835 000 people...
November 20, 2016: Pharmacoepidemiology and Drug Safety
https://www.readbyqxmd.com/read/27818554/breast-cancer-with-splenic-metastasis-in-a-male-patient
#9
Bruna Maria Thompson, Flávio Ferrarini de Oliveira Pimentel, Jaime Afonso Coelho Nogueira Diógenes, Marcelo Hajime Kohayagawa, Maria Regina Vianna
No abstract text is available yet for this article.
September 2016: Radiologia Brasileira
https://www.readbyqxmd.com/read/27812632/effects-of-passive-inhalation-of-cigarette-smoke-on-structural-and-functional-parameters-in-the-respiratory-system-of-guinea-pigs
#10
Thiago Brasileiro de Vasconcelos, Fernanda Yvelize Ramos de Araújo, João Paulo Melo de Pinho, Pedro Marcos Gomes Soares, Vasco Pinheiro Diógenes Bastos
Objective: To evaluate the effects of passive inhalation of cigarette smoke on the respiratory system of guinea pigs. Methods: Male guinea pigs were divided into two groups: control and passive smoking, the latter being exposed to the smoke of ten cigarettes for 20 min in the morning, afternoon and evening (30 cigarettes/day) for five days. After that period, inflammatory parameters were studied by quantifying mesenteric mast cell degranulation, as well as oxidative stress, in BAL fluid...
September 2016: Jornal Brasileiro de Pneumologia: Publicaça̋o Oficial da Sociedade Brasileira de Pneumologia e Tisilogia
https://www.readbyqxmd.com/read/27769382/development-validation-and-application-of-a-96-well-enzymatic-assay-based-on-lc-esi-ms-ms-quantification-for-the-screening-of-selective-inhibitors-against-mycobacterium-tuberculosis-purine-nucleoside-phosphorylase
#11
Giulia Cattaneo, Daniela Ubiali, Enrica Calleri, Marco Rabuffetti, Georg C Höfner, Klaus T Wanner, Marcela C De Moraes, Leonardo K B Martinelli, Diógenes Santiago Santos, Giovanna Speranza, Gabriella Massolini
Mycobacterium tuberculosis (Mtb) purine nucleoside phosphorylase (PNP, EC 2.4.2.1) has been identified as a target for the development of specific inhibitors with potential antimycobacterial activity. We hereby described the development and validation of a new 96-well LC-ESI-MS/MS method to assess the inhibition activity of nucleoside analogues towards MtbPNP and the human PNP (HsPNP). Enzyme activity was determined by monitoring the phosphorolysis of inosine (Ino) to hypoxanthine (Hpx). The enzymatic assay (v = 0...
November 2, 2016: Analytica Chimica Acta
https://www.readbyqxmd.com/read/27748220/effect-of-insulin-transferrin-selenium-its-and-l-ascorbic-acid-aa-during-in-vitro-maturation-on-in-vitro-bovine-embryo-development
#12
A L S Guimarães, S A Pereira, M N Diógenes, M A N Dode
The aim of this study was to evaluate the effect of adding a combination of insulin, transferrin and selenium (ITS) and l-ascorbic acid (AA) during in vitro maturation (IVM) and in vitro culture (IVC) on in vitro embryo production. To verify the effect of the supplements, cleavage and blastocyst rates, embryo size and total cell number were performed. Embryonic development data, embryo size categorization and kinetics of maturation were analyzed by chi-squared test, while the total cell number was analyzed by a Kruskal-Wallis test (P < 0...
October 17, 2016: Zygote: the Biology of Gametes and Early Embryos
https://www.readbyqxmd.com/read/27733828/payers-views-of-the-changes-arising-through-the-possible-adoption-of-adaptive-pathways
#13
Michael Ermisch, Anna Bucsics, Patricia Vella Bonanno, Francis Arickx, Alexander Bybau, Tomasz Bochenek, Marc van de Casteele, Eduardo Diogene, Jurij Fürst, Kristina Garuolienė, Martin van der Graaff, Jolanta Gulbinovič, Alan Haycox, Jan Jones, Roberta Joppi, Ott Laius, Irene Langner, Antony P Martin, Vanda Markovic-Pekovic, Laura McCullagh, Einar Magnusson, Ellen Nilsen, Gisbert Selke, Catherine Sermet, Steven Simoens, Robert Sauermann, Ad Schuurman, Ricardo Ramos, Vera Vlahovic-Palcevski, Corinne Zara, Brian Godman
Payers are a major stakeholder in any considerations and initiatives concerning adaptive licensing of new medicinal products, also referred to as Medicines Adaptive Pathways to patients (MAPPs). Firstly, the scope and necessity of MAPPs need further scrutiny, especially with regard to the definition of unmet need. Conditional approval pathways already exist for new medicines for seriously debilitating or life-threatening diseases and only a limited number of new medicines are innovative. Secondly, MAPPs will result in new medicines on the market with limited evidence about their effectiveness and safety...
2016: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/27706250/a-new-giant-titanosauria-dinosauria-sauropoda-from-the-late-cretaceous-bauru-group-brazil
#14
Kamila L N Bandeira, Felipe Medeiros Simbras, Elaine Batista Machado, Diogenes de Almeida Campos, Gustavo R Oliveira, Alexander W A Kellner
Titanosaurian dinosaurs include some of the largest land-living animals that ever existed, and most were discovered in Cretaceous deposits of Argentina. Here we describe the first Brazilian gigantic titanosaur, Austroposeidon magnificus gen. et sp. nov., from the Late Cretaceous Presidente Prudente Formation (Bauru Group, Paraná Basin), São Paulo State, southeast Brazil. The size of this animal is estimated around 25 meters. It consists of a partial vertebral column composed by the last two cervical and the first dorsal vertebrae, all fairly complete and incomplete portions of at least one sacral and seven dorsal elements...
2016: PloS One
https://www.readbyqxmd.com/read/27636889/extracellular-matrix-derived-hydrogels-for-dental-stem-cell-delivery
#15
Aiswarya Viswanath, Julie Vanacker, Loïc Germain, Julian G Leprince, Anibal Diogenes, Kevin M Shakesheff, Lisa J White, Anne des Rieux
Decellularized mammalian extracellular matrices (ECM) have been widely accepted as an ideal substrate for repair and remodelling of numerous tissues in clinical and pre-clinical studies. Recent studies have demonstrated the ability of ECM scaffolds derived from site-specific homologous tissues to direct cell differentiation. The present study investigated the suitability of hydrogels derived from different source tissues: bone, spinal cord and dentine, as suitable carriers to deliver human apical papilla derived mesenchymal stem cells (SCAP) for spinal cord regeneration...
January 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/27634065/angry-posture
#16
Jose Luis Rosário, Maria Suely Bezerra Diógenes, Rita Mattei, José Roberto Leite
Postural abnormalities can affect the emotions and vice-versa. The aim of the present study was to investigate the existence of a relationship between subjective anger and body posture in 28 women, aged between 20 and 39 years, with a normal body mass index (or underweight) and an absence of neurological, psychiatric or musculoskeletal disorders. The postural parameters photographed were the inclination of the shoulders, protrusion of the head, hyperextension of the knees and shoulder elevation. The degree of anger was rated by analogue scales representing current and usual anger...
July 2016: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/27623497/influence-of-age-and-apical-diameter-on-the-success-of-endodontic-regeneration-procedures
#17
Bishoy Safwat Estefan, Kariem Mostafa El Batouty, Mohamed Mokhtar Nagy, Anibal Diogenes
INTRODUCTION: Treatment of immature permanent teeth with necrotic pulp and apical pathosis constitutes a challenge for endodontists. The present study was done to evaluate the effect of age and apical diameter on the regenerative potential of young permanent immature teeth with necrotic pulps. METHODS: Immature necrotic permanent maxillary incisors (n = 40) of patients 9-18 years old were divided into 2 groups according to the treatment protocol: group Y (younger age group), 9-13 years and group O (older age group), 14-18 years...
September 9, 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/27614714/the-heme-based-oxygen-sensor-rhizobium-etli-fixl-influence-of-auxiliary-ligands-on-heme-redox-potential-and-implications-on-the-enzyme-activity
#18
Nathalie Honorio-Felício, Marta S P Carepo, Tércio de F Paulo, Luiz Gonzaga de França Lopes, Eduardo H S Sousa, Izaura C N Diógenes, Paul V Bernhardt
Conformational changes associated to sensing mechanisms of heme-based protein sensors are a key molecular event that seems to modulate not only the protein activity but also the potential of the Fe(III/II) redox couple of the heme domain. In this work, midpoint potentials (Em) assigned to the Fe(III/II) redox couple of the heme domain of FixL from Rhizobium etli (ReFixL) in the unliganded and liganded states were determined by spectroelectrochemistry in the presence of inorganic mediators. In comparison to the unliganded ReFixL protein (+19mV), the binding to ligands that switch off the kinase activity induces a negative shift, i...
August 26, 2016: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/27523907/capsaicin-sensitive-innervation-modulates-the-development-of-apical-periodontitis
#19
Obadah N Austah, Nikita B Ruparel, Michael A Henry, Roberto J Fajardo, James E Schmitz, Anibal Diogenes
INTRODUCTION: Nociceptive neurons play a critical role in the detection of stimuli evoking actual or potential tissue injury. In addition, they are involved in neurogenic inflammation by the peripheral release of neuropeptides such as calcitonin gene-related peptide (CGRP). The dental pulp and periradicular tissues are innervated by capsaicin-sensitive neurons known to release CGRP. However, the role of these capsaicin-sensitive neurons in the development of apical periodontitis is largely unknown...
October 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/27451120/ephrinb2-stabilizes-vascularlike-structures-generated-by-endothelial-cells-and-stem-cells-from-apical-papilla
#20
Changyong Yuan, Penglai Wang, Shaoyue Zhu, Ting Zou, Shuai Wang, Jianguang Xu, Boon Chin Heng, Anibal Diogenes, Chengfei Zhang
INTRODUCTION: This study aimed to investigate the roles of ephrinB2 in stabilizing vascularlike structures generated by stem cells from apical papilla (SCAPs) and human umbilical vein endothelial cells (HUVECs). METHODS: HUVECs were seeded alone or with SCAPs concurrently or 12 hours later. Angiogenesis and ephrinB2 phosphorylation were assayed at different time points. Additionally, ephrinB2 expression in SCAPs and HUVECs was silenced with small interfering RNA, and vascularlike structure formation within coculture was assessed; 1 × 10(5) HUVECs were seeded in transwell inserts, and 6 × 10(5) SCAPs were plated in lower wells with or without ephrinB2-Fc...
September 2016: Journal of Endodontics
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