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Mariana R Lopes, Thiago M Batista, Glória R Franco, Lucas R Ribeiro, Ana R O Santos, Carolina Furtado, Rennan G Moreira, Aristóteles Goes-Neto, Marcos J S Vital, Luiz H Rosa, Marc-André Lachance, Carlos A Rosa
Two isolates representing a new species of Scheffersomyces were isolated from rotting wood samples collected in an Amazonian forest ecosystem in Brazil. Analysis of the sequences of the D1/D2 domains showed that this new species is phylogenetically related to Scheffersomyces NYMU 15730, a species without a formal description, and the two are in an early emerging position with respect to the xylose-fermenting subclade containing Scheffersomyces titanus and Scheffersomyces stipitis. Phylogenomic analyses using 474 orthologous genes placed the new species in an intermediary position between Scheffersomyces species and the larger genus Spathaspora and the Candida albicans/Lodderomyces clade...
May 22, 2018: International Journal of Systematic and Evolutionary Microbiology
Hue T M Tran, Thiruvarangan Ramaraj, Agnelo Furtado, Leonard Slade Lee, Robert J Henry
Arabica coffee (Coffea arabica) has a small gene pool limiting genetic improvement. Selection for caffeine content within this gene pool would be assisted by identification of the genes controlling this important trait. Sequencing of DNA bulks from 18 genotypes with extreme high- or low-caffeine content from a population of 232 genotypes was used to identify linked polymorphisms. To obtain a reference genome, a whole genome assembly of arabica coffee (variety K7) was achieved by sequencing using short read (Illumina) and long-read (PacBio) technology...
March 7, 2018: Plant Biotechnology Journal
Fabiana Barcelos Furtado, Bruna Cristina Borges, Thaise Lara Teixeira, Hans Garcia Garces, Luiz Domingues de Almeida Junior, Fernanda Cristina Bérgamo Alves, Claudio Vieira da Silva, Ary Fernandes Junior
Natural products represent a source of biologically active molecules that have an important role in drug discovery. The aromatic plant Blepharocalyx salicifolius has a diverse chemical constitution but the biological activities of its essential oils have not been thoroughly investigated. The aims of this paper were to evaluate in vitro cytotoxic, antifungal and antibacterial activities of an essential oil from leaves of B. salicifolius and to identify its main chemical constituents. The essential oil was extracted by steam distillation, chemical composition was determined by gas chromatography/mass spectrometry, and biological activities were performed by a microdilution broth method...
January 4, 2018: International Journal of Molecular Sciences
Camila G Morais, Thiago M Batista, Jacek Kominek, Beatriz M Borelli, Carolina Furtado, Rennan G Moreira, Gloria R Franco, Luiz H Rosa, César Fonseca, Chris T Hittinger, Marc-André Lachance, Carlos A Rosa
Two yeast isolates producing asci-containing elongate ascospores with curved ends typical of the genus Spathaspora were isolated from rotting wood samples collected in an Atlantic rainforest ecosystem in Brazil. Phylogenetic analysis of the LSU rRNA gene D1/D2 domain sequences demonstrated that the strains represent a new species and placed it next to Candida blackwellae, in a clade that also contains Candida albicans and Candida dubliniensis. Other sequences of the ribosomal gene cluster supported same placementin the same clade, and a phylogenomic analysis placed this new species in an early emerging position relative to the larger C...
October 2017: International Journal of Systematic and Evolutionary Microbiology
Thiago M Batista, Heron O Hilário, Rennan G Moreira, Carolina Furtado, Valéria M Godinho, Luiz H Rosa, Glória R Franco, Carlos A Rosa
Here we report the draft genome sequence of Metschnikowia australis strain UFMG-CM-Y6158, a yeast endemic to Antarctica. We isolated the strain from the marine seaweed Acrosiphonia arcta (Chlorophyta). The genome is 14.3 Mb long and contains 4,442 predicted protein-coding genes.
May 18, 2017: Genome Announcements
Elson Rudimar Brissow, Igor Pereira da Silva, Kátia Aparecida de Siqueira, Jaqueline Alves Senabio, Leticia Pereira Pimenta, Ana Helena Januário, Lizandra Guidi Magalhães, Ricardo Andrade Furtado, Denise Crispim Tavares, Policarpo Ademar Sales Junior, Jane Lima Santos, Marcos Antônio Soares
Chemical investigation of the ethyl acetate extract from the endophytic fungus Diaporthe phaseolorum-92C (92C) isolated from the roots of Combretum lanceolatum led to the isolation of 18-des-hydroxy Cytochalasin H (compound 1). The trypanocidal and schistosomicidal activity and cytotoxicity of the extract from 92C were evaluated. The schistosomicidal, leishmanicidal, antimicrobial, and antioxidant actions, as well as the antitumor activity against the breast cancer cells MDA-MB-231 and MCF-7, and the cytotoxicity towards normal human lung fibroblasts GM07492A of compound 1 was tested...
July 2017: Parasitology Research
Catherine J Nock, Abdul Baten, Bronwyn J Barkla, Agnelo Furtado, Robert J Henry, Graham J King
BACKGROUND: The large Gondwanan plant family Proteaceae is an early-diverging eudicot lineage renowned for its morphological, taxonomic and ecological diversity. Macadamia is the most economically important Proteaceae crop and represents an ancient rainforest-restricted lineage. The family is a focus for studies of adaptive radiation due to remarkable species diversification in Mediterranean-climate biodiversity hotspots, and numerous evolutionary transitions between biomes. Despite a long history of research, comparative analyses in the Proteaceae and macadamia breeding programs are restricted by a paucity of genetic information...
November 17, 2016: BMC Genomics
Paulo Anastácio Furtado Pacheco, Leonardo Braga Gomes Ferreira, Leonardo Mendonça, Dinarte Neto M Ferreira, Juliana Pimenta Salles, Robson Xavier Faria, Pedro Celso Nogueira Teixeira, Luiz Anastacio Alves
The second-generation photosensitizer methylene blue (MB) exhibits photochemical and photophysical properties suitable for photodynamic therapy (PDT)-based cancer treatment. However, the clinical application of MB is limited because of its high hydrophilicity, which hinders its penetration into tumor tissues. Therefore, new methods to improve the entry of MB into the cytoplasm of target cells are necessary. Because MB has a mass of 319 Da, transient pores on the plasma membrane, such as the pore induced by the P2X7 receptor (P2X7R) that allows the passage of molecules up to 900 Da, could be used...
August 2016: Journal of Bioenergetics and Biomembranes
Jérôme Roy, Liliam Teixeira Oliveira, Camille Oger, Jean-Marie Galano, Valerie Bultel-Poncé, Sylvain Richard, Andrea Grabe Guimaraes, José Mário Carneiro Vilela, Margareth Spangler Andrade, Thierry Durand, Pierre Besson, Vanessa Carla Furtado Mosqueira, Jean-Yves Le Guennec
BACKGROUND: Nanocapsules, as a delivery system, are able to target drugs and other biologically sensitive molecules to specific cells or organs. This system has been intensively investigated as a way to protect bioactives drugs from inactivation upon interaction with the body and to ensure the release to the target. However, the mechanism of improved activity of the nanoencapsulated molecules is far from being understood at the cellular and subcellular levels. Epidemiological studies suggest that dietary polyunsaturated fatty acids (PUFA) can reduce the morbidity and mortality from breast cancer...
2015: Journal of Experimental & Clinical Cancer Research: CR
Rodrigo Araújo Lima Rodrigues, Ludmila Karen dos Santos Silva, Fábio Pio Dornas, Danilo Bretas de Oliveira, Thais Furtado Ferreira Magalhães, Daniel Assis Santos, Adriana Oliveira Costa, Luiz de Macêdo Farias, Paula Prazeres Magalhães, Cláudio Antônio Bonjardim, Erna Geessien Kroon, Bernard La Scola, Juliana Reis Cortines, Jônatas Santos Abrahão
UNLABELLED: Acanthamoeba polyphaga mimivirus (APMV) is a giant virus from the Mimiviridae family. It has many unusual features, such as a pseudoicosahedral capsid that presents a starfish shape in one of its vertices, through which the ∼ 1.2-Mb double-stranded DNA is released. It also has a dense glycoprotein fibril layer covering the capsid that has not yet been functionally characterized. Here, we verified that although these structures are not essential for viral replication, they are truly necessary for viral adhesion to amoebae, its natural host...
December 2015: Journal of Virology
Cristiane M Furtado, Mariah C Marcondes, Mauro Sola-Penna, Maisa L S de Souza, Patricia Zancan
BACKGROUND: Clotrimazole is an azole derivative with promising anti-cancer effects. This drug interferes with the activity of glycolytic enzymes altering their cellular distribution and inhibiting their activities. The aim of the present study was to analyze the effects of clotrimazole on the growth pattern of breast cancer cells correlating with their metabolic profiles. METHODOLOGY/PRINCIPAL FINDINGS: Three cell lines derived from human breast tissue (MCF10A, MCF-7 and MDA-MB-231) that present increasingly aggressive profiles were used...
2012: PloS One
José Carlos Nicolau, Remo Holanda M Furtado
No abstract text is available yet for this article.
June 2011: Arquivos Brasileiros de Cardiologia
Jakob Spoerk, Christelle Gendrin, Christoph Weber, Michael Figl, Supriyanto Ardjo Pawiro, Hugo Furtado, Daniella Fabri, Christoph Bloch, Helmar Bergmann, Eduard Gröller, Wolfgang Birkfellner
A common problem in image-guided radiation therapy (IGRT) of lung cancer as well as other malignant diseases is the compensation of periodic and aperiodic motion during dose delivery. Modern systems for image-guided radiation oncology allow for the acquisition of cone-beam computed tomography data in the treatment room as well as the acquisition of planar radiographs during the treatment. A mid-term research goal is the compensation of tumor target volume motion by 2D/3D Registration. In 2D/3D registration, spatial information on organ location is derived by an iterative comparison of perspective volume renderings, so-called digitally rendered radiographs (DRR) from computed tomography volume data, and planar reference x-rays...
February 2012: Zeitschrift Für Medizinische Physik
Henk C den Bakker, Craig A Cummings, Vania Ferreira, Paolo Vatta, Renato H Orsi, Lovorka Degoricija, Melissa Barker, Olga Petrauskene, Manohar R Furtado, Martin Wiedmann
BACKGROUND: The bacterial genus Listeria contains pathogenic and non-pathogenic species, including the pathogens L. monocytogenes and L. ivanovii, both of which carry homologous virulence gene clusters such as the prfA cluster and clusters of internalin genes. Initial evidence for multiple deletions of the prfA cluster during the evolution of Listeria indicates that this genus provides an interesting model for studying the evolution of virulence and also presents practical challenges with regard to definition of pathogenic strains...
2010: BMC Genomics
Patricia Zancan, Mauro Sola-Penna, Cristiane Marques Furtado, Daniel Da Silva
Cancer cells are characterized by increased aerobic glycolysis, which correlates with a negative prognosis. Although this correlation is well known, the mechanism of the elevated rate of glycolysis in cancer and the role of glycolytic enzymes have yet to be determined. The present work aims to evaluate the activity of the major enzymes that regulate glycolysis in breast cancer cell lines of varying aggressiveness. MCF10A, MCF-7 and MDA-mb-231 are human breast-derived cell lines with non-tumorigenic, tumorigenic and metastatic profiles, respectively...
August 2010: Molecular Genetics and Metabolism
Roberto Esporcatte, Helena Cramer Veiga Rey, Fernando Oswaldo Dias Rangel, Ricardo Mourilhe Rocha, Hugo Tannus Furtado de Mendonça Filho, Hans Fernando Rocha Dohmann, Francisco Manes Albanesi Filho
BACKGROUND: Myeloperoxidase (MPO) is a highly expressed enzyme due to leukocyte activation, with multiple atherogenic actions, including LDL cholesterol oxidation, and is related to the instability of atherosclerotic plaque. It is a predictor of adverse events in healthy individuals, patients with heart disease or those undergoing chest pain investigations. OBJECTIVE: To analyze the contribution of MPO to identify patients with acute chest pain, non-ST elevation ECG and at high risk for in-hospital adverse events...
December 2007: Arquivos Brasileiros de Cardiologia
Carísi A Polanczyk, Samir Schneid, Betina V Imhof, Mariana Furtado, Carolina Pithan, Luis E Rohde, Jorge P Ribeiro
BACKGROUND: Although redefinition for acute myocardial infarction (AMI) has been proposed few years ago, to date it has not been universally adopted by many institutions. The purpose of this study is to evaluate the diagnostic, prognostic and economical impact of the new diagnostic criteria for AMI. METHODS: Patients consecutively admitted to the emergency department with suspected acute coronary syndromes were enrolled in this study. Troponin T (cTnT) was measured in samples collected for routine CK-MB analyses and results were not available to physicians...
February 15, 2006: International Journal of Cardiology
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