Publicações - ciências biológicas
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BEZERRA, CINARA WANDERLÉA FELIX;
PALACIO-CORTÉS, ANGELA MARIA;
DOS SANTOS, MAYARA PADOVAN;
ALVES, ANA CAROLINA FELICIO;
SCHAFASCHEK, ANA MARTA;
GRASSI, MARCO TADEU;
Mário Antonio NavarroSilva
Palavra-chave:
Gadolinium;
lanthanum;
Diptera;
Chironomidae;
Chironomus sancticaroli
Áreas do conhecimento:
Ciências Biológicas; Zoologia; Taxonomia dos Grupos Recentes;
Ciências Biológicas; Zoologia; Fisiologia dos Grupos Recentes
resumo ...
Gadolinium (Gd) and Lanthanum (La) are rare earth elements (REEs) widely employed in contemporary technologies due to their unique physicochemical properties. However, their increasing release into aquatic environments has raised concerns about potential ecotoxicological effects. This study assessed the acute biochemical and molecular response of fourth-instar Chironomus sancticaroli larvae exposed to Gd and La at 0.03, 0.30, 3.00, and 30 μg L−1. Exposure to La at 0.03 and 3.00 μg L−1 induced a significant increase in acetylcholinesterase (AChE) activity, suggesting potential neurotoxic effects that may alter synaptic transmission and behavioral responses in larvae, whereas Gd did not affect AChE activity. Furthermore, La inhibited esterase-α activity, while Gd inhibited esterase-β activity in larvae exposed to 0.30, 3.00, and 30 μg L−1, suggesting specific alterations in detoxification and metabolic processing pathways. Both REEs triggered oxidative stress, as evidenced by the increase in catalase and glutathione S-transferase activities at specific concentrations, which may reflect a compensatory response to increased reactive oxygen species. Lipid peroxidation was detected only at the highest La concentration (30 μg L−1), indicating membrane damage and potential impairment of cellular integrity. Gene expression analysis showed downregulation of hemoglobin D across all La concentrations and hemoglobin E across all Gd concentrations, potentially compromising oxygen transport and respiratory efficiency of larvae. These sublethal alterations suggested that C. sancticaroli larvae are sensitive to both elements, with La exerting broader physiological disruption, in addition, these findings rise concern about the ecological risk of REE contamination in freshwater ecosystems.
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DE OLIVEIRA BENTES, IZABEL CRISTINA;
Mário Antonio NavarroSilva;
DE LIMA, EDUARDA ANDRADE;
VILASBOAS, GISLAYNE TRINDADE;
João Antonio Cyrino Zequi;
DE OLIVEIRA, ANDRÉ CORREA;
ROQUE, ROSEMARY APARECIDA;
ABENSOUR, DAYANE DANTAS;
LIMA DA COSTA, MARIA LUIZA;
DE MOREIRA SAMPAIO, RAQUEL TELLES;
BERNADETE DA SILVA, LETICIA;
DA SILVA FERREIRA, FRANCISCO AUGUSTO;
DA SILVA TAVARES, CLÁUDIA PATRÍCIA;
VIEIRA DE SOUZA, HERGEN;
DE ASSIS MARQUE, FRANCISCO
Palavra-chave:
Diptera;
Culicidae;
Bacillus thuringiensis;
Anophelinae
Áreas do conhecimento:
Ciências Biológicas; Zoologia; Fisiologia dos Grupos Recentes;
Ciências Biológicas; Zoologia; Zoologia Aplicada; Controle Populacional de Animais
resumo ...
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ALENCAR, JOÃO FRANCISCO DE OLIVEIRA;
NIEDERMEIER, GABRIELLY ALBRECHT;
Eliane Cristina Gruszka Vendruscolo;
Marise Fonseca dos Santos
Palavra-chave:
Biodigesters;
solubilization K;
enzymatic capacity;
biofilm
Áreas do conhecimento:
Ciências Biológicas; Microbiologia; Microbiologia Aplicada; Microbiologia Médica
resumo ...
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ANDREOTTI, JULIA P.;
MOREIRA, FABRÍCIO A.;
IGLESIAS, LIA P.;
BRIÂNIS, RAYSSA C.;
BARRA, WALACE C.P.;
DUARTE, IGOR D.G.;
Cristina Aparecida Jark Stern;
Leandro José Bertoglio;
CRIPPA, JOSÉ A.;
AGUIAR, DANIELE C.
Palavra-chave:
Condicionamento;
Canabigerol;
Diferenças sexuais;
Memória;
psicofarmacologia
Áreas do conhecimento:
Ciências Biológicas; Farmacologia; Neuropsicofarmacologia
resumo ...
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Edwin Fernando Buriticá Garivia;
Elizabeth de Almeida Licke da Luz;
Francielli Ambrosini;
Giovana Tuleski;
Marlos Gonçalves Sousa
Palavra-chave:
balanço autonômico;
Síndrome braquicefálica;
cardiologia veterinária
Áreas do conhecimento:
Ciências da Saúde; Medicina; Clínica Médica; Cardiologia;
Ciências Biológicas; Fisiologia; Fisiologia Comparada
resumo ...
(en)
Brachycephalic obstructive airway syndrome (BOAS) is a condition characterized by anatomical obstructions of the upper airways that impair airflow and lead to ventilatory dysfunction in dogs with broad and short skulls. This condition may also contribute to the occurrence of arrhythmias associated with increased vagal tone, such as sinus pauses or atrioventricular blocks. In advanced stages, pulmonary hypertension and cardiac remodeling may occur, predisposing affected dogs to more complex arrhythmias, including atrial fibrillation. This study aimed to map the available scientific evidence regarding autonomic cardiac activity and the presence of arrhythmias in brachycephalic dogs. This scoping review was conducted according to the standards of the Joanna Briggs Institute (JBI) and adhered to the Preferred Reporting Items for Systematic reviews and Meta-Analyses extension for Scoping Reviews methodological guidance (PRISMA-ScR). The databases CABI, BVS, Embase, MEDLINE/PubMed, SciELO, Scopus, and Web of Science. were used to search for scientific evidence published to date. The search strategy included the terms: “airway obstruction”, “brachycephalic dogs”, “heart rate variability”, “parasympathetic nervous system”, and “respiratory sinus arrhythmia”. The research identified 769 articles, of which 11 met the criteria and were included. Each article was analyzed, and its information was characterized according to four domains of interest: general study information, methodological design of the studies, variables analyzed and diagnostic strategies applied, and main findings and conclusions. This scoping review emphasizes the increasing scientific interest in the relationship between brachycephalic breed morphology and cardiac autonomic modulation in dogs. Although there are a limited number of studies with methodological diversity, the evidence suggests that vagal overstimulation resulting from chronic upper airway obstruction in these breeds significantly influences heart rate and rhythm modulation. Future research should focus on achieving methodological standardization, detailed morphometric evaluations, and utilizing long-term monitoring techniques to improve diagnostic accuracy and clinical relevance.
(pt)
A síndrome obstrutiva das vias aéreas em cães braquicefálicos (BOAS) é uma condição caracterizada por obstruções anatômicas das vias aéreas superiores que prejudicam o fluxo de ar e levam à disfunção ventilatória em cães com crânios largos e curtos. Essa condição também pode contribuir para a ocorrência de arritmias associadas ao aumento do tônus vagal, como pausas sinusais ou bloqueios atrioventriculares. Em estágios avançados, podem ocorrer hipertensão pulmonar e remodelamento cardíaco, predispondo os cães afetados a arritmias mais complexas, como a fibrilação atrial. Este estudo teve como objetivo mapear as evidências científicas disponíveis sobre a atividade autonômica cardíaca e a presença de arritmias em cães braquicefálicos. Esta revisão de escopo foi conduzida conforme os padrões do Instituto Joanna Briggs (JBI) e seguiu as diretrizes metodológicas do PRISMA-ScR (Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews). As bases de dados CABI, BVS, Embase, MEDLINE/PubMed, SciELO, Scopus e Web of Science foram utilizadas para a busca das evidências científicas publicadas até o momento. A estratégia de busca incluiu os termos: “obstrução das vias aéreas”, “cães braquicefálicos”, “variabilidade da frequência cardíaca”, “sistema nervoso parassimpático” e “arritmia sinusal respiratória”. A pesquisa identificou 769 artigos, dos quais 11 atenderam aos critérios de elegibilidade e foram incluídos. Cada artigo foi analisado e suas informações foram caracterizadas de acordo com quatro domínios de interesse: informações gerais do estudo, desenho metodológico, variáveis analisadas e estratégias diagnósticas aplicadas, e principais achados e conclusões. Esta revisão de escopo destaca o crescente interesse científico na relação entre a morfologia de raças braquicefálicas e a modulação autonômica cardíaca em cães. Embora o número de estudos seja limitado e exista diversidade metodológica, as evidências sugerem que a superestimulação vagal resultante da obstrução crônica das vias aéreas superiores nessas raças influencia significativamente a modulação da frequência e do ritmo cardíacos. Pesquisas futuras devem buscar a padronização metodológica, avaliações morfométricas detalhadas e o uso de técnicas de monitoramento prolongado para melhorar a precisão diagnóstica e a aplicabilidade clínica.
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Mielke, Olaf H. H.;
Mirna Martins Casagrande;
DOLIBAINA, DIEGO R.;
DIAS, FERNANDO M. S.;
ZACCA, THAMARA;
SIEWERT, RICARDO R.;
PIOVESAN, MÔNICA;
ORLANDIN, ELTON;
Eduardo Carneiro dos Santos
resumo ...
(en)
The present study gathered historical distributional records of butterflies collected in Paraná state and adds new taxonomic acts to ensure nomenclatural stability. More than 23,000 records of butterflies from 1,476 species are listed, among: Hedylidae (2), Hesperiidae (689), Papilionidae (29), Pieridae (43), Nymphalidae (328), Lycaenidae (207), and Riodinidae (178). Additional 25 subspecies names were recorded, mainly among Hesperiidae and Nymphalidae. Toponyms found on species labels and in the literature were associated with geographical coordinates and altitude, and are available in a gazetteer format. The following taxonomical acts are here proposed: new species-level taxa revalidation: Nascus (Bron) broteas solon (Plötz, 1882), stat. rev., and Synapte restricta (Hayward, 1934), stat. rev.; one reinstated status Cymaenes theogenis (Capronnier, 1874), stat. rest.; three new status to species-level taxa: Metrocles hydra (Evans, 1955), stat. nov., Mnaseas brunnea (O. Mielke, 1972), stat. nov., and Vinius istria Evans, 1955, stat. nov.; four new synonyms: Cobalus virbius hersilia (Plötz, 1882), syn. nov. of Hesperia papaea Hewitson, 1876, Hesperia ina Plötz, 1882, syn. nov. of Mnasinous (Methionopsis) phaeomelas (Hübner, [1829]), and Penicula roppai O. Mielke, 1980, syn. nov. of Tricrista advena advena (Draudt, 1923); and two new combinations, Cobalus papaea (Hewitson, 1876), comb. nov., and Tricrista reducta (Bell, 1930), comb. nov..
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DA CRUZ, RAFAEL PEREIRA;
QUEFI, BLASCO;
Luiz Everson da Silva;
DE MENEZES, IRWIN ROSE ALENCAR;
MELO COUTINHO, HENRIQUE DOUGLAS;
BEZERRA MORAIS-BRAGA, MARIA FLAVIANA;
DA SILVA, MÁRCIA VANUSA;
ALMEIDA-BEZERRA, JOSÉ WEVERTON;
SAMPAIO ALVES, DANIEL;
DA SILVA, ANA RAQUEL PEREIRA;
DE OLIVEIRA, MARAIZA GREGÓRIO;
GONÇALVES ALENCAR, GABRIEL;
SANTOS ARAÚJO, NARA JULIANA;
ANDRADE-PINHEIRO, JACQUELINE COSMO;
Andrade Rebelo, Ricardo
Palavra-chave:
Myrtaceae;
Cambui;
Ethnomedicine
Áreas do conhecimento:
Ciências Biológicas; Farmacologia; Etnofarmacologia
resumo ...
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Cibele Stramare Ribeiro-Costa;
Geoffrey Morse
Palavra-chave:
Seed beetles;
Amblycerina;
Systematic;
Western Hemisphere
Áreas do conhecimento:
Ciências Biológicas; Zoologia; Taxonomia dos Grupos Recentes
resumo ...
The seed-beetle Amblycerus Thunberg, 1815 the second most diverse genus of Bruchinae (Chrysomelidae) in the Western Hemisphere, is organized into groups of species, as many others in the subfamily. The main objective of this work is to delimit the group sclerolobii, here established as composed by five described species, A. sclerolobii Ribeiro-Costa, 2000, A. kingsolveri Ribeiro-Costa, 1993, A. marinonii Ribeiro-Costa, 1993, A. manauara Ribeiro-Costa, 2000, A. tachigaliae Kingsolver, 1976 and four new species: A. biacutus Ribeiro-Costa, sp. nov., A. falcorostrus Ribeiro-Costa & Morse, sp. nov., A. morsei Ribeiro-Costa, sp. nov. (type localities: Brazil: Amazonas, Manaus) and A. truncatus Ribeiro-Costa, sp. nov. (type locality Brazil: Mato Grosso, Sinop). Therefore, including these new species 70 Brazilian species of Amblycerus were recorded. Amblycerus bicolor (Pic, 1927) previously considered to belong to this group is excluded and placed as incertae sedis. The sclerolobii group is distributed mainly in the Brazilian Amazonia biome, consuming Tachigali Aubl., Dinizia Ducke, and Stryphnodendron Mart. seeds (Fabaceae). Diagnoses are presented for this group and for ten species (including A. bicolor), and descriptions for the four new ones, an identification key for the nine species, colored photographs of external morphology, and detailed male genitalia illustrations for all the species studied. Due mainly to previously broad contributions on the taxonomy of Amblycerus that resulted in many species groups, we also present a revised study of this intrageneric taxonomic level. From 37 species groups now we update to 32 groups with a total of 96 species assigned to them. Finally, a detailed systematic study of some specific groups is also suggested before mergence.
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HENSCHEL, L.D.V.;
LIMA, M.E.R. DE;
FAGUNDES, F.C.;
HORLEM, T.;
ZAZULA, M.F.;
Katya NALIWAIKO;
Luis Cláudio Fernandes
Palavra-chave:
cancer cachexia;
clembuterol;
metfomin;
Walker 256 tumor
Áreas do conhecimento:
Ciências Biológicas; Fisiologia; Fisiologia Geral; metabolismo
resumo ...
Cancer is the second leading cause of death worldwide. Cancer cachexia is a multifactorial...
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Ana Flávia Schvabe Duarte;
Marco Franceschi;
Deise Prehs Montrucchio;
Marilis Dallarmi Miguel;
Cleusa Bona;
OBDÚLIO GOMES MIGUEL
Palavra-chave:
Guettarda;
anatomia
Áreas do conhecimento:
Ciências Biológicas; Botânica; Fisiologia Vegetal
resumo ...
HIGHLIGHTS First anatomical data for G. uruguensis and G. pohliana. Identifies four trichome...
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