Publicações - ciências biológicas
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Cláudio J B Carvalho;
Cláudio J B Carvalho
Palavra-chave:
biotic interchange;
Historical biogeography;
housefly;
model-based;
niche conservatism;
range expansion
Áreas do conhecimento:
Ciências Biológicas; Bioquímica dos Microorganismos; Enzimologia;
Ciências Biológicas; Zoologia; Taxonomia dos Grupos Recentes;
Ciências Biológicas; Zoologia; Biogeografia Histórica
resumo ...
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Lucas Roberto Pereira Gomes;
João Manuel Fogaça;
Cláudio J B Carvalho
Palavra-chave:
Coenosiini;
morphology;
Taxonomy;
Trans-Mexican Volcanic Belt
Áreas do conhecimento:
Ciências Biológicas; Zoologia; Taxonomia dos Grupos Recentes
resumo ...
Abstract A new monotypic genus, Aztecamyia gen. nov., is proposed for a new species of muscid fly, Aztecamyia tlaloc sp. nov., found in highland localities from the Mexican Transition Zone (Mexico, Michoacan, Morelos and Puebla). Additionally, a morphology-based phylogenetic analysis of Coenosiini is presented. The new genus has some unique characters, such as katepisternal setae 0+1+1 in males, while females are the typically Coenosiini 1+1+1; the mid and hind tibia have many long and fine setae on the apical half, from the anterior to posterior surface; and the preapical setae on all femora are absent on all surfaces. The morphology of the male and female terminalia is a typical Coenosiini shape.
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BELLAN, D. L.;
Maria Eugênia R. Duarte;
Celia Regina Cavichiolo Franco;
Ester Mazepa;
Stellee Marcela P. Biscaia;
GONÇALVES, J. P.;
OLIVEIRA, C. C.;
ROSSI, G. R.;
Ferreira, Luciana G.;
Miguel Noseda;
Edvaldo da Silva Trindade
Palavra-chave:
Marine macroalga;
Sulfated Polysaccharide;
Biological activity
Áreas do conhecimento:
Ciências Biológicas; Biotecnologia;
Ciências Biológicas; Bioquímica; Bioquímica
resumo ...
Melanoma is a form of skin cancer with high mortality owing to its fast progression and metastatic capacity. The treatments available nowadays are only palliative in advanced stages of the disease. Thus, alternative therapies for cancer treatment are in demand, and molecules from natural sources, such as polysaccharides, could represent new possible therapeutic approaches. Polysaccharides of freshwater and marine algae with biological activities, such as antitumor properties, are greatly reported in the scientific literature. In the present study, a sulfated heterorhamnan obtained from the green seaweed Gayralia brasiliensis (Gb1 fraction) was chemically characterized and its biological activities in the B16-F10 murine melanoma cell line were evaluated. The Gb1 polysaccharidic fraction tested concentrations presented low or absence of cytotoxicity to B16-F10 cells and neither cell proliferation nor cell cycle were altered. Interestingly, Gb1 treatment decreased B16-F10 cells migration and invasion capabilities and CD44 labeling, showing to be a promising compound for further in vitro and in vivo antitumor studies.
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Darrigran, Gustavo;
FABRES, ALEJANDRA;
GUTIÉRREZ GREGORIC, DIEGO E.;
LETELIER, SERGIO;
LUDWIG, SANDRA;
MANSUR, MARIA CRISTINA;
PASTORINO, GUIDO;
PENCHASZADEH, PABLO;
PERALTA, CAROLINA;
REBOLLEDO, ANDREA;
RUMI, ALEJANDRA;
AGUDO-PADRÓN, IGNACIO;
SANTOS, SONIA;
THIENGO, SILVANA;
VIDIGAL, TEOFÂNIA;
DAMBORENEA, CRISTINA;
BAEZ, PEDRO;
Carlos Eduardo Belz;
CARDOSO, FRANZ;
CARRANZA, ALVAR;
COLLADO, GONZALO;
CORREOSO, MODESTO;
CUEZZO, MARÍA GABRIELA
Palavra-chave:
Malacologia;
Bioinvasões;
Espécies Invasoras;
Moluscos Invasores
Áreas do conhecimento:
Ciências Biológicas; Malacologia
resumo ...
Non-native species have been introduced at escalating rates during the last decades, mainly due to the dispersion generated by the increasing trade and transport worldwide. Mollusks, the second largest metazoan phylum in terms of species richness, are no exception to this pattern, but, to date, a comprehensive synthesis of non-native mollusk species (NNMS) in South America was not available. For this purpose, an e-discussion group was formed with malacologists and taxonomists from South America, where we exchanged and analyzed bibliography, databases and information about NNMS, providing expert opinion to this assessment. The first list of non-native mollusk species for South America, considering terrestrial, freshwater and marine environments, includes 86 NNMS distributed in 152 ecoregions (terrestrial, freshwater and marine) of the 189 recognized for the South American continent. Information on their native region, vectors, first record for South America and distribution, are also provided. In the analysis of the distribution of the NNMS and the entry points of each species (e.g., ports, cargo and passenger airports, cities) and status of conservation of the ecoregions, four hot spots were recognized: Subtropical-Atlantic, Northern Andes, Central Andes and Southern Andes. This work, thus, sets the baseline on NNMS for South America, a key piece of information regarding the development of policies targeting the management of biological invasions and their socio-ecological impacts.
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AMBRÓSIO, ALTAIR ROGÉRIO;
BÁVIA, LORENA;
BORGES, BEATRIZ SANTANA;
HIRAIWA, PRISCILA MAZZOCCHI;
PIETSCH, JOÃO LUIS MACHADO;
Magda Clara Vieira da Costa Ribeiro;
FIGUEIREDO, FABIANO BORGES;
MESSIAS-REASON, IARA JOSE
Palavra-chave:
Ficolins;
Leishmania braziliensis
resumo ...
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BISEWSKI, GESSICA C. A.;
BACCI, LUCAS F.;
AMORIM, ANDRÉ M.;
Renato Goldenberg
Áreas do conhecimento:
Ciências Biológicas; Taxonomia Vegetal; Taxonomia de Fanerógamos
resumo ...
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NASCIMENTO, SILVIA M.;
MENEZES-SALGUEIRO, ADRIANA D.;
Luiz Laureno Mafra Júnior;
HESS, PHILIPP;
SALGUEIRO, FABIANO;
NEVES, RAQUEL A. F.;
DE?CARLI, GABRIELA A. L.;
BORSATO, GEOVANNA T.;
DA SILVA, RODRIGO A. F.;
MELO, GUILHERME A.;
DE MORAIS, AGATHA M.;
COCKELL, THAIS C.;
FRAGA, SANTIAGO
Palavra-chave:
benthic dinoflagellates;
harmful algal blooms;
ovatoxin;
Taxonomy;
morphometry
Áreas do conhecimento:
Ciências Exatas e da Terra; Oceanografia; Oceanografia Biológica; Toxicologia de Dinoflagelados;
Ciências Exatas e da Terra; Oceanografia; Oceanografia Biológica; Botânica Marinha;
Ciências Biológicas; Botânica; Ecologia do Fitoplâncton; Ficotoxinas Marinhas
resumo ...
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LO, SZE M.;
MARTINEZ, PIERINA A.;
MARQUES, EMERSON F.;
MIYAMOTO, SAYURI;
VALDAMERI, GLAUCIO;
MOURE, VIVIAN R.;
Silvio Marques Zanata;
NAKAO, LIA S.
Palavra-chave:
AIF;
Apoptose;
Thioredoxin-1
Áreas do conhecimento:
Ciências Biológicas; Bioquímica dos Microorganismos; Enzimologia;
Ciências Biológicas; Bioquímica; Química de Macromoléculas; Proteínas;
Ciências Biológicas; Morfologia; Citologia e Biologia Celular
resumo ...
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BUSATO, BIANCA;
DE ALMEIDA ABREU, ELAINE CRISTINA;
DE OLIVEIRA PETKOWICZ, CARMEN LÚCIA;
MARTINEZ, GLAUCIA REGINA;
NOLETO, GUILHERMINA RODRIGUES
Palavra-chave:
pectina;
Peritoneal Macrophages;
Immunosupressive Effect
Áreas do conhecimento:
Ciências Biológicas; Efeitos Biológicos de Polissacarídeos
resumo ...
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Jeferson M. B. Sohn;
Suzen F. T. de Souza;
Ana Maria Raymundi;
Jessica Bonato;
Rubia Maria Weffort de Oliveira;
Jos Prickaerts;
Cristina Aparecida Jark Stern
Palavra-chave:
BDNF;
Córtex Infralímbico;
Extinção;
Fosfodiesterase;
PTSD
resumo ...
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