Publicações - ciências biológicas
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CORDEIRO, DANILO PACHECO;
Freddy Bravo;
Cláudio J B Carvalho
Palavra-chave:
Amazônia;
COI;
drainfly;
mothflies;
Taxonomy
Áreas do conhecimento:
Ciências Biológicas; Zoologia; Taxonomia dos Grupos Recentes;
Ciências Biológicas; Zoologia; Taxonomia dos Grupos Recentes
resumo ...
(en)
Psychoda Latreille is one of the largest genera of Psychodidae, with around 450 species, from which more than 130 are known from only one of the sexes. This is a result of the high diversity, sympatry of close related species and scarcity of diagnostic characters to accurately associate males and females in this genus. Here we describe a new species, Psychoda dactyla sp. n., from Brazil, Amazonas, São Gabriel da Cachoeira with morphological description of male and female specimens associated by DNA-barcoding.
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GAZARINI, L;
Cristina Aparecida Jark Stern;
Leandro José Bertoglio
Palavra-chave:
Condicionamento;
consolidação;
Extinção;
Generalização;
PTSD;
psicofarmacologia
Áreas do conhecimento:
Ciências Biológicas; Farmacologia; Neuropsicofarmacologia
resumo ...
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IANTAS, JUCELIA;
SAVI, DAIANI;
Larissa V. Ponomareva;
THORSON, JON S.;
Jurgen Rohr;
Chirlei Glienke;
Khaled A. Shaaban
Palavra-chave:
Endophytic fungi;
atividade antimicrobiana;
Pseudofusicoccum stromaticum
resumo ...
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MATHIAS, CAROLINA;
KOZAK, VANESSA NASCIMENTO;
MAGNO, JESSICA MARIA;
BAAL, SUELEN CRISTINA SOARES;
DOS SANTOS, VICTOR HENRIQUE APOLONIO;
RIBEIRO, ENILZE MARIA DE SOUZA FONSECA;
Daniela Fiori Gradia;
CASTRO, MAURO ANTONIO ALVES;
CARVALHO DE OLIVEIRA, JAQUELINE
Palavra-chave:
HCP5;
UCA1;
immune response;
Immunotherapy;
tumor microenvironment
Áreas do conhecimento:
Ciências Biológicas; Genética Humana e Médica
resumo ...
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MACHADO BATISTA SOHN, JEFERSON;
CARDOSO, NATHALIE CARLA;
RAYMUNDI, ANA MARIA;
PRICKAERTS, JOS;
Cristina Aparecida Jark Stern
Palavra-chave:
BDNF;
Condicionamento;
Extinção;
Fosfodiesterase;
psicofarmacologia
Áreas do conhecimento:
Ciências Biológicas; Farmacologia; Neuropsicofarmacologia
resumo ...
Phosphodiesterase 4 (PDE4), an enzyme expressed in the dorsal hippocampus (DH), hydrolyzes the cAMP, limiting the PKA-induced CREB phosphorylation (pCREB) and BDNF expression. Depending on the brain region, PKA and pCREB mediate reconsolidation or extinction, whereas BDNF is mainly related to extinction facilitation. The mechanisms underpinning the switch between reconsolidation and extinction are relatively unknown. Here, we tested the hypothesis that PDE4 might control these processes. We showed in Wistar rats submitted to contextual fear conditioning that PDE4 inhibition with roflumilast (ROF) within the DH, after a short retrieval, did not change freezing behavior after one day (TestA1). After 10 days, the ROF-treated group significantly reduced the expression of freezing behavior. This effect depended on retrieval, Test A1 exposure, and reinstated after a remainder foot shock, suggesting an extinction facilitation. The ROF effect depended on PKA after retrieval or, protein synthesis after Test A1. After retrieval, ROF treatment did not change the pCREB/CREB ratio in the DH. It enhanced proBDNF expression without changing pre-proBDNF or mature BDNF in the DH after Test A1. The results suggest that the inhibition of PDE4 in the DH after a short retrieval changes the memory sensibility from reconsolidation to extinction via regulating proBDNF expression.
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Daniela Mariano Barreto;
Alessandra Emanuele Tonietto;
Everton Willian ROdrigues da Silva Oliveira;
AMARAL, CLARICE DIAS BRITTO;
PULGROSSI, RAFAEL CATOIA;
POLPO, A.;
NÓBREGA, JOAQUIM ARAÚJO;
Ana Teresa Lombardi
Palavra-chave:
nanoparticula metalica
Áreas do conhecimento:
Ciências Biológicas; ECOTOXICOLOGIA
resumo ...
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CUPELLO, MARIO;
Cibele Stramare Ribeiro-Costa;
BARCLAY, MAXWELL V.L.
Palavra-chave:
Dung beetles;
Lectotype designation;
Dichotomiini
Áreas do conhecimento:
Ciências Biológicas; Zoologia; Taxonomia dos Grupos Recentes
resumo ...
(en)
Chalcocopris hesperus (originally Scarabaeus hesperus) (Coleoptera, Scarabaeidae, Scarabaeinae, Dichotomiini) is a common and unmistakable dung beetle species from the Atlantic Forest of Brazil, Paraguay and Argentina. In 2015, a neotype was designated for its valid name based on the belief that the original type series had been lost. However, the designation was invalid for failing to comply with Article 75.3.1 of the Code. Moreover, even if it had been originally valid, the neotype would now lose its type status for we found a syntype precisely where it was originally said to be, in the material of the Joseph Banks collection, now preserved in the Natural History Museum, London. We present the evidence supporting the recognition of this specimen as a syntype and designate it as the lectotype. The specimen, from Rio de Janeiro, Brazil, may have been collected by Sir Joseph Banks himself during the first Cook voyage round the world (1768–1771), but we discuss aspects that might indicate that it may actually have been caught later and by someone else. Finally, we show that Scarabaeus hesperus was fixed as the type species of Chalcocopris not in 2016, as recently argued by one of us, but in 1998 by Olivier Montreuil. The data gathered and discussed here will hopefully prove to be valuable to anyone investigating the history and type status of specimens from the Banksian entomological collection.
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ALEXANDRE FALCONI, CARLOS;
Fernanda Fogaça-Ruiz;
Jessica Verônica da Silva;
Raquel Silva Neres-Santos;
Carmen Lucía Sanz;
Lia S Nakao;
Andréa Emília Marques Stinghen;
Carolina Victoria Cruz Junho;
MARCELA SORELLI CARNEIRO RAMOS
Áreas do conhecimento:
Ciências Biológicas; Fisiologia; Fisiologia de Órgãos e Sistemas; Fisiologia Renal;
Ciências Biológicas; Bioquímica; Bioquímica
resumo ...
The precise mechanisms underlying the cardiovascular complications due to acute kidney injury (AKI) and the retention of uremic toxins like p-cresyl sulfate (PCS) remain incompletely understood. The objective of this study was to evaluate the renocardiac effects of PCS administration in animals subjected to AKI induced by ischemia and reperfusion (IR) injury. C57BL6 mice were subjected to distinct protocols: (i) administration with PCS (20, 40, or 60 mg/L/day) for 15 days and (ii) AKI due to unilateral IR injury associated with PCS administration for 15 days. The 20 mg/L dose of PCS led to a decrease in renal mass, an increase in the gene expression of Cystatin C and kidney injury molecule 1 (KIM-1), and a decrease in the α-actin in the heart. During AKI, PCS increased the renal injury biomarkers compared to control; however, it did not exacerbate these markers. Furthermore, PCS did not enhance the cardiac hypertrophy observed after 15 days of IR. An increase, but not potentialized, in the cardiac levels of interleukin (IL)-1β and IL-6 in the IR group treated with PCS, as well as in the injured kidney, was also noticed. In short, PCS administration did not intensify kidney injury, inflammation, and cardiac outcomes after AKI.
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Cláudio J B Carvalho;
WOLFF, MARTA;
HASEYAMA, KIRSTERN LICA FOLLMANN;
FOGAÇA, JOÃO MANUEL
Palavra-chave:
Colombia;
Taxonomy;
species distribution;
Distribution map
Áreas do conhecimento:
Ciências Biológicas; Zoologia; Taxonomia dos Grupos Recentes;
Ciências Biológicas; Zoologia; Taxonomia dos Grupos Recentes
resumo ...
(en)
Agenamyia Albuquerque, an endemic neotropical genus with two species, has been revised to include three new species: Agenamyia colombiana de Carvalho, Wolff & Fogaça sp. nov. from Envigado; Agenamyia maculata de Carvalho, Wolff & Fogaça sp. nov. from El Retiro; and Agenamyia timida de Carvalho, Wolff & Fogaça sp. nov. from Sopetrán, all localities in Antioquia, Colombia. This review presents an identification key for all species, including color images and illustrations of male and female terminalia. The distribution of all species is mapped and discussed.
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BARACHO, DOUGLAS HENRIQUE;
Ana Teresa Lombardi
Palavra-chave:
Bioquímica;
Cianobactérias
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