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Publicações - ciências biológicas

Chemical characterization of polysaccharides from Baccharis trimera (Less.) DC. infusion and its hepatoprotective effects CHAVES, PEDRO FELIPE PEREIRA; Eliana Rezende Adami; Marcelo Iacomini; Acco, Alexandra; Lucimara Mach C Cordeiro FOOD RESEARCH INTERNATIONAL, v. 136, n. 20, p. 109510 2020 DOI Palavra-chave: Baccharis trimera; hepatotoxicity; liver; polysaccharides Áreas do conhecimento: Ciências Biológicas; Biotecnologia em Saúde Humana e Animal resumo ...
Chilling to the bone: Lower temperatures increase vertebrate predation by Tonatia bidens (Chiroptera: Phyllostomidae) CARVALHO, FERNANDO; BÔLLA, DANIELA A.S.; Mottin V; KIEM, SUELEN ZONTA; ZOCCHE, JAIRO J.; Fernando C. Passos Zoologia, v. 37, p. 1-5, 2020 DOI Palavra-chave: Atlantic Forest; bat diet; diet seasonality; invertebrate predation; trophic guild Áreas do conhecimento: Ciências Biológicas; Bioquímica dos Microorganismos; Enzimologia; Ciências Biológicas; Ecologia; Ecologia de Ecossistemas resumo ... The greater round-eared bat, Tonatia bidens (Spix, 1823), is a medium-sized phyllostomid bat distributed in the north of Argentina, Paraguay and Brazil. The diet and foraging patterns of this species are poorly known. We analyzed the composition of the diet of a population of T. bidens and how the temperature influences the consumption of vertebrates and invertebrates. To describe diet composition, we conducted weekly collections of food scrap from two monospecific night-perches. Data of temperature for the study period were taken from the meteorological station installed 300 m from the collection perches. The influence of temperature was evaluated using generalized linear models (GLMs) with negative binomial distribution. Tonatia bidens consumed 28 taxons (204 records), being at least 17 Artropods and 11 Passeriformes birds. Temperature explained a greater proportion of vertebrate abundance (R2 = 0.23) than invertebrate (R2 = 0.16) or to both pooled (R2 = 0.11). The relation with temperature was positive with invertebrates and negative with the vertebrates. The diet of the population of T. bidens comprised mainly invertebrates, which were the most frequent and diverse taxa. Data suggests that T. bidens has a diverse diet, with proportion of the item’s consumption varying temporally. Environmental factors, such as the temperature presented on this work, seems to be good proxies for the dietary traits of this species.
Comparative vegetative anatomy of Neotropical Goodyerinae Klotzsch (Orchidaceae Juss.: Orchidoideae Lindl.) Cleusa Bona; Mathias Erich Engels; Fernanda de Siqueira Pieczak; Eric de Camargo Smidt ACTA BOTANICA BRASILICA, n. 3, p. 530-539, 2020 DOI Palavra-chave: Goodyerinae; Orchidaceae; anatomia de órgão vegetativos Áreas do conhecimento: Ciências Biológicas; Botânica; Morfologia Vegetal; Anatomia Vegetal; Ciências Biológicas; Botânica; Fisiologia Vegetal resumo ...
Conformational analysis of ulvans from Ulva fasciata and their anticoagulant polycarboxylic derivatives DE CARVALHO, MARIANA M.; Miguel Noseda; DALLAGNOL, JULIANA C.C.; Ferreira, Luciana G.; Diogo R. B. Ducatti; Alan Guilherme Gonçalves; DE FREITAS, RILTON A.; Duarte, Maria Eugênia R. INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES, v. 162, p. 599-608, 2020 DOI Home page Palavra-chave: Seaweed; polysaccharide; Biological activity; Conformational analysis Áreas do conhecimento: Ciências Biológicas; Biotecnologia resumo ... This study investigates conformational aspects of ulvans (F2) and their polycarboxyl derivatives obtained through periodate–chlorite oxidation (C3) fo…
Consumption of latex from Euphorbia tirucalli L. promotes a reduction of tumor growth and cachexia, and immunomodulation in Walker 256 tumor-bearing rats Carolina Garcia Martins; Luis Cláudio Fernandes; Iagher, Fabíola; Lauro M. de Souza; Marcia Helena Appel; Débora Salles da Silva Coutinho; Igor Peixoto Soares; Stefani Valeria Fischer; Bruna Comotti de Oliveira; Mariana M. Fachi; Roberto Pontarolo; Bonatto S J JOURNAL OF ETHNOPHARMACOLOGY, v. 255, p. 112722 2020 DOI Palavra-chave: cancer; cachexia; Walker 256 tumor; Immune System Áreas do conhecimento: Ciências Biológicas; Fisiologia de Órgãos e Sistemas; Fisiologia da Digestão resumo ...
Contribution of mesolimbic dopamine and kappa opioid systems to the transition from acute to chronic pain Fernanada Vergara; Natalia F Sardi; gisele de Oliveira Guaita; Cristina Aparecida Jark Stern; Juliana Geremias Chichorro; Luana Fischer NEUROPHARMACOLOGY, v. 178, p. 108226 2020 DOI Palavra-chave: dopamina; HPLC; nocicepção resumo ...
Conyza sumatrensis allelopathy effect on Bidens pilosa (Asteraceae) seed germination Paulo José Ferreira; Patricia da Costa Zonetti; alfredo junior paiola albrecht; Isac George Rosset; André Felipe Moreira Silva; LEANDRO PAIOLA ALBRECHT; Amanda Holz Vieira; Roberta Paulert Botanical Sciences, v. 98, p. 01-19, 2020 DOI Palavra-chave: conyza; allelopathy Áreas do conhecimento: Ciências Exatas e da Terra; Produtos Naturais; Ciências Biológicas; Botânica; Fisiologia Vegetal resumo ... (en) Background: Other tools for weed management should be considered in addition to the use of herbicides. In this context, the identification and use of allelopathic compounds deserves attention. Question: To quantify phenolic compounds and evaluate the allelopathic potential of extracts of Conyza sumatrensis on the germination of Bidens pilosa. Studied species: Conyza sumatrensis (Retz.) E.Walker, Bidens pilosa L. (Asteraceae) Study site: Palotina, state of Paraná, Brazil. Methods: The aqueous extracts were prepared with shoot and root portions of C. sumatrensis in concentrations: 0, 1, 5 and 10 %. Germination and germination speed index were evaluated. The total flavonoids and phenols of the tested extracts were also quantified. Results: With increasing concentrations of the extracts there was an increased inhibition of germination of B. pilosa and delays in the germination process. The extracts from the shoot of C. sumatrensis had a more expressive effect on seed germination when compared to the extracts obtained from the root. At concentration of 10 %, the extract from the shoot reduced in 83 % the percentage of germination. This may be related to the higher concentration of total flavonoids and phenols found. Conclusion: The allelopathic potential of C. sumatrensis plants can be considered since both shoot and root extracts inhibited and/or reduced the germination of B. pilosa. (es) Antecedentes: Se deben considerar otras herramientas para el manejo de malezas además del uso de herbicidas. En este contexto, la identificación y el uso de compuestos alelopáticos merece atención. Problema: Cuantificar compuestos fenólicos y evaluar el potencial alelopático de extractos de Conyza sumatrensis en la germinación de Bidens pilosa. Especies de estudio: Conyza sumatrensis (Retz.) E.Walker, Bidens pilosa L. (Asteraceae) Sitio de estudio: Palotina, estado de Paraná, Brasil. Métodos: Los extractos acuosos se prepararon con porciones de brotes y raíces de C. sumatrensis en concentraciones: 0, 1, 5 y 10 %. Se evaluaron la germinación y el índice de velocidad de germinación. También se cuantificaron los flavonoides y fenoles totales de los extractos probados. Resultados: Con el aumento de las concentraciones de los extractos hubo una mayor inhibición de la germinación de B. pilosa y retrasos en el proceso de germinación. Los extractos del brote de C. sumatrensis tuvieron un efecto más expresivo sobre la germinación de las semillas en comparación con los extractos obtenidos de la raíz. En la concentración de 10 %, el extracto del brote redujo en 83 % el porcentaje de germinación. Esto puede estar relacionado con la mayor concentración de flavonoides y fenoles totales encontrados. Conclusión: El potencial alelopático de las plantas de C. sumatrensis puede considerarse ya que tanto los extractos de brotes como los de raíz inhibieron y/o redujeron la germinación de B. pilosa.
Cordiluroides Albuquerque (Diptera: Muscidae): new species and key to the Neotropical genus FOGAÇA, JOÃO MANUEL; Marcia Souto COURI; VIEIRA-ARAÚJO, ANGELINA PIMENTEL; Cláudio J B Carvalho Revista Brasileira de Entomologia (Impresso), v. 64, n. 4, p. 2-10, 2020 DOI Palavra-chave: Atlantic Forest; Estación Biologica Wayqecha; Parque Nacional do Itatiaia; scanning electron microscope; Taxonomy Áreas do conhecimento: Ciências Biológicas; Bioquímica dos Microorganismos; Enzimologia; Ciências Biológicas; Zoologia; Taxonomia dos Grupos Recentes resumo ... Abstract Here we describe three new species of Cordiluroides Albuquerque, one striking new...
Corticoid-like anti-inflammatory effect of Vochysia bifalcata Warm.: Preclinical evidence of efficacy and safety Horinouchi, Cintia Delai da Silva; ZUFFELLATO-RIBAS, KATIA CHRISTINA; CABRINI, D; OTUKI, M; Soley, Bruna da Silva; Mendes, Daniel Augusto Gasparin Bueno; FERREIRA, BÁRBARA GUERREIRA ALPANDE; MEYRE-SILVA, CHRISTIANE; FARIAS, INGRID VICENTE; KRUEGER, CLARISSA DE MEDEIROS AMORIM; BRESOLIN, TANIA MARI BELLÉ; Assreuy, Jamil JOURNAL OF ETHNOPHARMACOLOGY, v. 252, p. 112472 2020 DOI Palavra-chave: Cell proliferation; inflammation; Vochysia bifalcat; Skin; glucocorticoid Áreas do conhecimento: Ciências Biológicas; Bioquímica dos Microorganismos; Enzimologia resumo ...
Corticoid-like anti-inflammatory effect of Vochysia bifalcata Warm.: Preclinical evidence of efficacy and safety Horinouchi, C.D.S.; ZUFFELLATO-RIBAS, KATIA CHRISTINA; CABRINI, D; OTUKI, M; Soley, Bruna da Silva; Mendes, Daniel Augusto Gasparin Bueno; FERREIRA, BÁRBARA GUERREIRA ALPANDE; MEYRE-SILVA, CHRISTIANE; FARIAS, INGRID VICENTE; KRUEGER, CLARISSA DE MEDEIROS AMORIM; BRESOLIN, TANIA MARI BELLÉ; Assreuy, Jamil JOURNAL OF ETHNOPHARMACOLOGY, v. 252, p. 112472 2020 DOI Palavra-chave: Vochysia bifalcata; medicinal plants; topic antiinflammatory; corticoids; skin inflammation Áreas do conhecimento: Ciências Biológicas; Bioquímica dos Microorganismos; Enzimologia resumo ...

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