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https://www.readbyqxmd.com/read/28225907/characterisation-of-iunh-gene-knockout-strain-from-mycobacterium-tuberculosis
#1
Anne Drumond Villela, Valnês da Silva Rodrigues, Antônio Frederico Michel Pinto, Priscila Lamb Wink, Zilpa Adriana Sánchez-Quitian, Guilherme Oliveira Petersen, Maria Martha Campos, Luiz Augusto Basso, Diógenes Santiago Santos
BACKGROUND: Tuberculosis (TB) is an infectious disease caused mainly by the bacillus Mycobacterium tuberculosis. The better understanding of important metabolic pathways from M. tuberculosis can contribute to the development of novel therapeutic and prophylactic strategies to combat TB. Nucleoside hydrolase (MtIAGU-NH), encoded by iunH gene (Rv3393), is an enzyme from purine salvage pathway in M. tuberculosis. MtIAGU-NH accepts inosine, adenosine, guanosine, and uridine as substrates, which may point to a pivotal metabolic role...
March 2017: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/28214747/immunorecognition-magnetic-supports-for-the-development-of-an-electrochemical-immunoassay-for-azaspiracid-detection-in-mussels
#2
Sandra Leonardo, Maria Rambla-Alegre, Ingunn A Samdal, Christopher O Miles, Jane Kilcoyne, Jorge Diogène, Ciara K O'Sullivan, Mònica Campàs
As azaspiracids (AZAs) are being reported from the coastal waters of an increasing number of countries on a global scale, the need for rapid, simple and cost-effective methods to detect these marine toxins and protect seafood consumers' health is becoming evident. A magnetic bead (MB)-based direct immunoassay for the detection of AZAs, using protein G-coated MBs as supports for antibody immobilisation and peroxidase-labelled AZA as a tracer is detailed. A colorimetric approach was first developed to optimise the experimental parameters and establish the cross-reactivity factors for AZA-1-10...
February 10, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28196330/decellularized-human-dental-pulp-as-a-scaffold-for-regenerative-endodontics
#3
J S Song, K Takimoto, M Jeon, J Vadakekalam, N B Ruparel, A Diogenes
Teeth undergo postnatal organogenesis relatively late in life and only complete full maturation a few years after the crown first erupts in the oral cavity. At this stage, development can be arrested if the tooth organ is damaged by either trauma or caries. Regenerative endodontic procedures (REPs) are a treatment alternative to conventional root canal treatment for immature teeth. These procedures rely on the transfer of apically positioned stem cells, including stem cells of the apical papilla (SCAP), into the root canal system...
February 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28196119/correction-atorvastatin-improves-ventricular-remodeling-after-myocardial-infarction-by-interfering-with-collagen-metabolism
#4
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
[This corrects the article DOI: 10.1371/journal.pone.0166845.].
2017: PloS One
https://www.readbyqxmd.com/read/28195497/incisor-and-molar-overjet-arch-contraction-and-molar-relationship-in-the-mixed-dentition-in-repaired-complete-unilateral-cleft-lip-and-palate-a-qualitative-and-quantitative-appraisal
#5
Suteeta Disthaporn, Sunjay Suri, Bruce Ross, Bryan Tompson, Diogenes Baena, David Fisher, Wendy Lou
OBJECTIVE: To compare the mixed dentition incisor and molar overjet, severity of contraction of the dental arch, and the sagittal molar relationship on the cleft side vs the noncleft side in children with repaired complete unilateral cleft of the lip and palate (UCLP). MATERIALS AND METHODS: Orthodontic records taken prior to orthodontic preparation for alveolar bone grafting were screened to select study casts from patients with nonsyndromic repaired complete UCLP who did not have mandibular skeletal or dental asymmetry...
February 14, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/28193100/corneal-antinociceptive-effect-of-%C3%AE-bisabolol
#6
Gisele Façanha Diógenes Teixeira, Flávio Nogueira da Costa, Adriana Rolim Campos
CONTEXT: (-)-α-Bisabolol (BISA) is a sesquiterpene alcohol widely used as scent in cosmetic preparations, perfumes, shampoos, toilet soaps and other toiletries with potential for use in the pharmaceutical area. OBJECTIVE: To evaluate the corneal antinociceptive efficacy of BISA and to analyze the best solubilizing agent. MATERIALS AND METHODS: Acute corneal nociception was induced by the local application of hypertonic saline (5 M NaCl; 20 μL) to the corneal surface of Swiss mice (n = 8/group) 60 min after topical treatment with solutions or ointment containing BISA (50-200 mg/mL)...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28190588/survival-of-the-apical-papilla-and-its-resident-stem-cells-in-a-case-of-advanced-pulpal-necrosis-and-apical-periodontitis
#7
Vanessa Chrepa, Brandon Pitcher, Michael A Henry, Anibal Diogenes
INTRODUCTION: Apical papilla represents a source of an enriched mesenchymal stem cell (MSC) population (stem cells of the apical papilla [SCAPs]) that modulates root development and may participate in regenerative endodontic procedures in immature teeth with pulp necrosis. The characteristics and phenotype of this tissue in the presence of inflammation are largely unknown. The purpose of this study was to characterize a human apical papilla sample that was isolated from an immature tooth with pulp necrosis and apical periodontitis...
February 9, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28130366/analysis-of-uracil-phosphoribosyltransferase-expression-in-mycobacterium-tuberculosis-and-evaluation-of-upp-knockout-strain-in-infected-mice
#8
Anne Drumond Villela, Ha Pham, Victoria Jones, Anna E Grzegorzewicz, Valnês da Silva Rodrigues-Junior, Maria Martha Campos, Luiz Augusto Basso, Mary Jackson, Diógenes Santiago Santos
The upp (Rv3309c)-encoded uracil phosphoribosyltransferase from Mycobacterium tuberculosis (MtUPRT) converts uracil and 5-phosphoribosyl-α-1-pyrophosphate into pyrophosphate and uridine 5'-monophosphate, the precursor of all pyrimidine nucleotides. A M. tuberculosis knockout strain for upp gene was generated by allelic replacement. Knockout and complemented strains were validated by a functional assay of uracil incorporation. A basal level of MtUPRT expression is shown to be independent of either growth medium used, addition of bases, or oxygen presence/absence...
January 26, 2017: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/28124904/chitosan-film-containing-an-iron-complex-synthesis-and-prospects-for-heterocyclic-aromatic-amines-haas-recognition
#9
Maria Aparecida S da Silva, Dieric S Abreu, Leandro A Costa, Natanna de A Aguiar, Tércio F Paulo, Elisane Longhinotti, Izaura C N Diógenes
Hybrid organic-inorganic materials have been seen as a promising approach to produce sensors for the detection and/or recognition of heterocyclic aromatic amines (HAAs). This work shows the synthesis of a hybrid film as a result of the incorporation of [Fe(CN)5(NH3)](3-) into chitosan (CS); CS-[(CN)5Fe(NH3)](3-). The sensitivity of CS-[(CN)5Fe(NH3)](3-) toward HAA-like species was evaluated by using pyrazine (pz) as probe molecule in vapor phase by means of electrochemistry and spectroscopic techniques. The crystallinity (SEM-EDS and XRD) decrease of CS-[(CN)5Fe(NH3)](3-) in comparison to CS was assigned to the disturbance of the hydrogen bond network within the polymer...
February 7, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28073532/toxigenic-algae-and-associated-phycotoxins-in-two-coastal-embayments-in-the-ebro-delta-nw-mediterranean
#10
Julia A Busch, Karl B Andree, Jorge Diogène, Margarita Fernández-Tejedor, Kerstin Toebe, Uwe John, Bernd Krock, Urban Tillmann, Allan D Cembella
Harmful Algal Bloom (HAB) surveillance is complicated by high diversity of species and associated phycotoxins. Such species-level information on taxonomic affiliations and on cell abundance and toxin content is, however, crucial for effective monitoring, especially of aquaculture and fisheries areas. The aim addressed in this study was to determine putative HAB taxa and related phycotoxins in plankton from aquaculture sites in the Ebro Delta, NW Mediterranean. The comparative geographical distribution of potentially harmful plankton taxa was established by weekly field sampling throughout the water column during late spring-early summer over two years at key stations in Alfacs and Fangar embayments within the Ebro Delta...
May 2016: Harmful Algae
https://www.readbyqxmd.com/read/28041686/evaluation-of-a-commercially-available-hyaluronic-acid-hydrogel-restylane-as-injectable-scaffold-for-dental-pulp-regeneration-an-in%C3%A2-vitro-evaluation
#11
Vanessa Chrepa, Obadah Austah, Anibal Diogenes
INTRODUCTION: Regenerative endodontic procedures (REPs) are viable alternatives for treating immature teeth, yet these procedures do not predictably lead to pulp-dentin regeneration. A true bioengineering approach for dental pulp regeneration requires the incorporation of a scaffold conducive with the regeneration of the pulp-dentin complex. Several materials have been proposed as scaffolds for REPs; nonetheless, the majority are not eligible for immediate clinical chairside use. Thus, the aim of this study was to evaluate Restylane, a Food and Drug Administration-approved hyaluronic acid-based gel, as possible scaffold for REPs...
December 29, 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/28024953/immune-protection-conferred-by-recombinant-mrlc-myosin-regulatory-light-chain-antigen-in-titermax-gold%C3%A2-adjuvant-against-experimental-fasciolosis-in-rats
#12
Luan C Henker, Claiton I Schwertz, Neuber J Lucca, Manoela M Piva, Keila C Prior, Piotr Baska, Luke Norbury, Kamil Januszkiewicz, Diogenes Dezen, Marta M M F Duarte, Rafael N Moresco, Liana Bertagnolli da Rosa, Ricardo E Mendes
Protection against experimental fasciolosis in rats immunized with recombinant myosin regulatory light chain (MRLC) in TiterMax Gold® adjuvant was assessed. The experimental trial consisted of four groups of 15 animals; group 1 was unimmunized and infected, group 2 was immunized with MRLC in adjuvant and infected, group 3 was infected and immunized with adjuvant only and group 4 was unimmunized and uninfected. Immunization with MRLC in TiterMax Gold® adjuvant (group 2) induced a reduction in fluke burdens of 51...
December 23, 2016: Vaccine
https://www.readbyqxmd.com/read/28009804/evaluation-of-chemical-composition-and-antileishmanial-and-antituberculosis-activities-of-essential-oils-of-piper-species
#13
Karine Zanoli Bernuci, Camila Cristina Iwanaga, Carla Maria Mariano Fernandez-Andrade, Fabiana Brusco Lorenzetti, Eduardo Caio Torres-Santos, Viviane Dos Santos Faiões, José Eduardo Gonçalves, Wanderlei do Amaral, Cícero Deschamps, Regiane Bertin de Lima Scodro, Rosilene Fressatti Cardoso, Vanessa Pietrowski Baldin, Diógenes Aparício Garcia Cortez
Essential oils from fresh Piperaceae leaves were obtained by hydrodistillation and analyzed by gas chromatography mass spectrometry (GC-MS), and a total of 68 components were identified. Principal components analysis results showed a chemical variability between species, with sesquiterpene compounds predominating in the majority of species analyzed. The composition of the essential oil of Piper mosenii was described for the first time. The cytotoxicity of the essential oils was evaluated in peritoneal macrophages and the oils of P...
December 12, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28000057/bovine-in-vitro-embryo-production-the-effects-of-fibroblast-growth-factor-10-fgf10
#14
Mateus Nunes Diógenes, Ana Luiza Silva Guimarães, Ligiane Oliveira Leme, Margot Alves Nunes Dode
PURPOSE: In an attempt to improve in vitro embryo production, we investigated the effect of fibroblast growth factor 10 (FGF10) during in vitro maturation on the developmental capacity of bovine oocytes. MATERIAL AND METHODS: Cumulus-oocyte complexes (COCs) were aspirated from follicles of 3-8 mm diameter. After selection, the COCs were matured in medium with or without 0.5 ng/mL of FGF10. The effect of FGF10 during in vitro maturation (IVM) on nuclear maturation kinetics and expansion of the cumulus cells was investigated...
December 20, 2016: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/27988534/a-new-species-of-the-genus-i-diogenes-i-dana-1851-crustacea-decapoda-anomura-diogenidae-from-gujarat-northwestern-india
#15
Jigneshkumar N Trivedi, Masayuki Osawa, Kauresh D Vachhrajani
A new species of diogenid hermit crab, Diogenes chhapgari n. sp., is described on the basis of material collected during the crustacean faunal survey along the coastal areas of the Gujarat State, northwestern India. The new species is referred to the D. edwardsii (De Haan, 1849) species group and appears closest to D. singaporensis Rahayu, 2015. However, D. chhapgari n. sp. is distinguished from this species by the armature on the fourth segment of the antennal peduncle and carpus of the left cheliped.
December 15, 2016: Zootaxa
https://www.readbyqxmd.com/read/27973453/evaluation-of-chemical-composition-and-antileishmanial-and-antituberculosis-activities-of-essential-oils-of-piper-species
#16
Karine Zanoli Bernuci, Camila Cristina Iwanaga, Carla Maria Mariano Fernadez-Andrade, Fabiana Brusco Lorenzetti, Eduardo Caio Torres-Santos, Viviane Dos Santos Faiões, José Eduardo Gonçalves, Wanderlei do Amaral, Cícero Deschamps, Regiane Bertin de Lima Scodro, Rosilene Fressatti Cardoso, Vanessa Pietrowski Baldin, Diógenes Aparício Garcia Cortez
Essential oils from fresh Piperaceae leaves were obtained by hydrodistillation and analyzed by gas chromatography mass spectrometry (GC-MS), and a total of 68 components were identified. Principal components analysis results showed a chemical variability between species, with sesquiterpene compounds predominating in the majority of species analyzed. The composition of the essential oil of Piper mosenii was described for the first time. The cytotoxicity of the essential oils was evaluated in peritoneal macrophages and the oils of P...
December 12, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/27914363/new-insights-into-the-sar-and-drug-combination-synergy-of-2-quinolin-4-yloxy-acetamides-against-mycobacterium-tuberculosis
#17
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...
January 27, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/27912813/regenerative-endodontic-procedures-clinical-outcomes
#18
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
#19
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
#20
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
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