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Anais da Academia Brasileira de Ciências

Guilherme Joner, Dari C Alves Filho, Ivan L Brondani, Daniele Borchate, John L Klein, Camille C Domingues, Leonel S Rodrigues, Diego S Machado
The objective was to evaluate the influence of calving and postpartum characteristics, measured in different genetic predominance, on the postpartum rebreeding. Were evaluated 437 partum from cows that received feeding management consisting of a forage base of the native field and the mating season consisted of 90 days. The measurements were used from the data base (age of cow, genetic predominance, body weight, body condition score and date of calving) of the cows in the partum and postpartum period. The variables were submitted to analysis of multiple variances, multiple regression, correlation and cluster...
June 25, 2018: Anais da Academia Brasileira de Ciências
Tamy Colonetti, Belise V E Rocha, Antônio J Grande, Maria C M Alexandre, Eduardo R Dondossola, Kristian Madeira, Maria I Rosa
The objective of the study was to conduct a systematic review to synthesize the current evidence on the accuracy of IgM and IgA to early diagnosis the dengue virus. The review protocol was registered at PROSPERO (CRD 42015024808). We searched for studies in the following electronic database from 1990 to January 2018. The search identified 3507 studies. Five studies were included for quantitative analysis. Three studies included evaluations of salivary IgM provided a sensitivity of 86% and specificity of 93%...
June 25, 2018: Anais da Academia Brasileira de Ciências
Carine F Souza, Tábata Lima, Matheus D Baldissera, Márcio A Geihs, Fábio E Maciel, Luiz E M Nery, Roberto C V Santos, Renata P Raffin, Berta M Heinzmann, Braulio O Caron, Bernardo Baldisserotto
The aim of this study was to evaluate the efficacy and safety of several anesthetics in the brachyuran crab Neohelice granulata, an emergent experimental model. The essential oils (EOs) of Lippia alba, Aloysia tryphilla, and Melaleuca alternifolia (tea tree oil; TTO), the isolated compounds eugenol, menthol, terpinen-4-ol, and the nanoencapsulated form of TTO, were administered in one or more of the following ways: added to the water (immersion), through an arthrodial membrane (injected), or by oral gavage...
June 25, 2018: Anais da Academia Brasileira de Ciências
Paul Smith
Sittace flaviventris Wagler, 1832 was the name given to Azara's No. 276 "Maracaná cabeza y encuentro roxos", but since then the identity of the species has remained a mystery. Based on a tail-less domestic individual, it has most often been attributed to an aberrant Aratinga parakeet, and is currently considered a doubtful taxon. In this note the identity of "Azara's Parakeet" is confirmed as Red-spectacled Amazon Amazona pretrei (Temminck, 1830), a species that still occurs today in the region from where Azara described it...
June 25, 2018: Anais da Academia Brasileira de Ciências
Mohamed E Ebada
Essential oils of green cumin (Cuminum cyminum) and chamomile (Chamomilla recutita) have antioxidant and anti-inflammatory effects. Acetaminophen, N-acetyl-p-amino-phenol, is an over-the-counter analgesic and antipyretic. Despite being safe at therapeutic doses, acetaminophen overdose is a leading cause of acute liver failure. This study aimed to compare the possible protective effects of cumin and chamomile essential oils against acute acetaminophen hepatotoxicity in male rats. Cumin oil (400 mg/kg) and chamomile oil (250 mg/kg) were orally administered for 2 weeks prior to a single acetaminophen dose (1g/kg)...
June 25, 2018: Anais da Academia Brasileira de Ciências
Leandro L Dumas
The caddisfly genus Contulma Flint, 1969, with 30 described species, is endemic to the Neotropics. In addition to the five species currently recorded from Brazil, a new species of Contulma is described and illustrated in this work. Contulma vascaina sp. n. is similar to C. sana Jardim and Nessimian, 2011 in prominent, slender and rod-like posterolateral lobe of segment IX, but the new species has a shorter posterolateral lobe, with long, spine-like seta apically. Contulma vascaina sp. n. can also be characterized by the presence of a large, hood-like sclerotized plate on the endothecal phallic membrane...
June 25, 2018: Anais da Academia Brasileira de Ciências
Maria DE Fátima Guimarães, José F DE Oliveira, Tiago S Telles, Walquíria Machado, Graziela M C Barbosa, João Tavares Filho
Retaining sugarcane straw over the soil after harvesting can improve soil structure and increase soil carbon stabilization, mainly in macroaggregates. We evaluated the carbon content in the aggregate classes in areas under burn and no-burn (adopted for five years) sugarcane management systems, focusing on the superficial layer (0.00-0.20 m). The experiment was carried in an Oxisol and the treatments consisted in burnt sugarcane, manual harvest; burnt sugarcane, mechanized harvest; and no-burn, mechanized harvest...
June 25, 2018: Anais da Academia Brasileira de Ciências
Geovane A DE Souza, Victor O Moresca, Gustavo M Teixeira, Fernando C Jerep, Aline Aguiar
Schyzocotyle acheilognathi is a tapeworm cestode commonly found in native freshwater fishes from Asia. This cestode has low host specificity and for that reason it has been registered parasitizing more than 200 cultured and wild fish species, besides amphibians, reptiles and birds from different regions of the world. With a high pathogenic potential, S. acheilognathi may cause mortalities in highly infected fish. In South America, Schyzocotyle was reported in Cyprinus carpio from a Brazilian fish farm at the municipality of Cornélio Procópio, northern Paraná State and from the natural environment in C...
June 25, 2018: Anais da Academia Brasileira de Ciências
Pedro Malafaia, Felipe Z Garcia, Samara P Lopes, Vinícius C Souza, Camillo F C Canella Filho, Diogo F A Costa, Cristiano C P Veiga
The needle test (NT) is a point-of-care test developed in Brazil to evaluate the Phosphorus (P) status in cattle. Based on bone resistance, the NT is a very inexpensive method which allows the diagnosis of any degree of P deficiency in a fast and simple way in vivo and directly on farm. The NT measures three levels of resistance in the transverse process (TP) of the lumbar vertebrae: a) TP that are impenetrable and result in warping of the needle (P healthy animals); b) TP offering some resistance to the penetration (animals with subclinical P deficiency); and c) TP which has minimal resistance to penetration (clinical P deficiency)...
June 25, 2018: Anais da Academia Brasileira de Ciências
Carlos E Fabin, Osvaldo J Correia Filho, Márcio L Alencar, José A Barbosa, Tiago S DE Miranda, Virgínio H Neumann, Igor F Gomes, Felipe R DE Santana
The Ipubi Formation represents the Aptian-Albian siliciclastic-evaporitic succession of Araripe Basin, NE Brazil. This succession comprises siliciclastic rocks (bituminous shales and claystones) and evaporites (gypsum and secondary anhydrite) and represents part of the lacustrine-shallow marine post-rift phase I. This study used sequence stratigraphy concepts to define the relations between changes in the relative lake level and the formation of Ipubi deposits. Results show that the organic-rich shales of the Ipubi Formation formed during a transgressive pulse that covered large areas of the proximal domains...
June 25, 2018: Anais da Academia Brasileira de Ciências
Thaís F M Mota, Thomaz M C Fabrin, Gabriel C Deprá, Luciano S Gasques, Alessandra V DE Oliveira, Carla S Pavanelli, Sônia M A P Prioli, Alberto J Prioli
The genera Hemigrammus and Moenkhausia have been traditionally diagnosed mainly by the former having lateral line completely pored whereas the latter having a lateral line with a few pored scales. Those features have been used to diagnose species of both genera in the upper Paraná River floodplain. Specimens with the diagnostic features of Moenkhausia bonita, collected in the upper Paraná River floodplain, exhibited different developmental levels of the lateral line, making it difficult to distinguish them from specimens of Hemigrammus sp...
June 25, 2018: Anais da Academia Brasileira de Ciências
Patrícia H Almeida, Ana Carolina C DE Oliveira, Genyfer P N DE Souza, Juliana C Friedrich, Giani A Linde, Nelson B Colauto, Juliana S DO Valle
Lentinus crinitus is a white-rot fungus that produces laccase, an enzyme used for dye decolorization. Enzyme production depends on cultivation conditions, mainly agro-industrial by-products. We aimed to produce laccase from Lentinus crinitus with agro-industrial by-products for dye decolorization. Culture medium had coffee husk (CH) or citric pulp pellet (CP) and different nitrogen sources (urea, yeast extract, ammonium sulfate and sodium nitrate) at concentrations of 0, 0.7, 1.4, 2.8, 5.6 and 11.2 g/L. Enzymatic extract was used in the decolorization of remazol brilliant blue R...
June 25, 2018: Anais da Academia Brasileira de Ciências
Maria Amélia D Boaventura, Laura F W Xavier, Henriete S Vieira, Jacqueline A Takahashi, Wilton J D Nascimento Junior, Tamires P Araujo, Amanda C S Coelho
Thirteen natural products derivatives of hydroxyl amide class, three described for the first time, were synthesized by reaction of three indole acids and 3,4,5-trimethoxybenzoic acid with six different amino alcohols in the presence of triphenylphosphine and N-bromosuccinimide. The derivatives were tested against the Gram (+) bacteria Staphylococcus aureus and Bacillus cereus, Gram (-) Pseudomonas aeruginosa and Escherichia coli, besides the yeast Candida albicans. One of the compounds (7) was selectively active against C...
June 25, 2018: Anais da Academia Brasileira de Ciências
Thais H V Farias, Ketherson R Silva, Viviane C Mariguela, Hélio J Montassier, Fabiana Pilarski
The pacu is one of the most important species for Brazilian fish farming and is considered emerging in the global aquaculture. Despite its importance, no effective tool for evaluation of the adaptive immune response of this species has been developed. Therefore, this study aimed the development and standardization of indirect ELISA for the measurement of pacu antigen-specific antibodies using polyclonal rabbit anti-pacu IgM used as detector antibody. For this purpose was isolated and purificated of pacu IgM using mannose-binding protein affinity chromatography and produced specific polyclonal antibodies against heavy and light chains pacu IgM, that showed a molecular weight of 72 kDa and 26 kDa, respectively...
June 25, 2018: Anais da Academia Brasileira de Ciências
Ana Paula D Ano Bom, Izabella B S Corrêa, Ana Paula C Argondizzo, Marco Alberto Medeiros, Roger B Dos Santos, Theo Luiz F de Souza, José G da Silva Junior
PsaA (pneumococcal surface antigen A) is a S. pneumoniae virulence factor that belongs to the metal transport system. The Manganese PsaA binding has been associated with oxidative stress resistance becoming a pivotal element in the bacteria virulence. It has been shown that Zinc inhibits the Manganese acquisition and promotes bacteria toxicity. We have performed a PsaA conformational analysis both in the presence (Zn-rPsaA) and in the absence of Zinc (free-rPsaA). We performed experiments in the presence of different Zinc concentrations to determine the metal minimum concentration which induced a conformational change...
June 25, 2018: Anais da Academia Brasileira de Ciências
Nathália C Ferrari, Raquel Martell, Daniela H Okido, Grasiele Romanzini, Viviane Magnan, Marcia C Barbosa, Carolina Brito
Recent studies have shown that diversity in race and gender is important to improve competitiveness, creativity and innovation. However, many studies have shown that the universe of science is not diverse in none of these criteria. In this work, we quantify the gender and geographic diversity in the Brazilian science. We study in detail the profile of the titular members of the most prestigious academic institution of Brazil, the Brazilian Academy of Sciences (ABC). Our analysis shows that the members of the ABC concentrates 80% in the Southeast region and that the overwhelming majority is composed by men...
June 25, 2018: Anais da Academia Brasileira de Ciências
Ione C P Pereira, Nágila C F Sousa, Domingos M S Pereira, Saulo J F Mendes, Thayanne F Muniz, Valderlane L P Colares, Bruna L R Silva, Cinara R A V Monteiro, Mahiba M R S Martins, Anita M R Fernandes, Elizabeth S Fernandes
Rheumatoid arthritis is a chronic disease of the joints, which causes joint pain and disability. Anaemia is a frequent extra-articular manifestation in rheumatoid arthritis, affecting 30-70% of the patients; presenting a negative impact on patient´s quality of life. Some of the drugs used in rheumatoid arthritis treatment improve anaemia; but little is known on the beneficial effects of the anti-rheumatic leflunomide or the anti-TNFα adalimumab, in this parameter. We investigated the incidence of anaemia in rheumatoid arthritis patients treated or not with leflunomide or adalimumab...
June 25, 2018: Anais da Academia Brasileira de Ciências
Barbara M DE Carvalho, Nelson F Fontoura, Henry L Spach
This study aimed to describe the growth parameters of Anchoa tricolor in a subtropical estuary. From August 2010 to July 2011, 10.009 specimens of the anchovy Anchoa tricolor, mean total length 4.2 cm (±1.45), were captured in the intertidal region of the Estuarine Complex of Paranaguá (25º 15' - 25° 35' S and 48° 20' - 48° 45' W). Species´s weight/length relationship for grouped genders was described as follow: W = 0.0000591.Lt3.282 (length in centimeters; weight in grams) showing a positive allometric growth pattern (b>3; P=0...
June 25, 2018: Anais da Academia Brasileira de Ciências
Paulo Passos, Agustín Scanferla, Paulo R Melo-Sampaio, Jorge Brito, Ana Almendariz
Body-size is significantly correlated with the number of vertebrae (pleomerism) in multiple vertebrate lineages, indicating that somitogenesis process is an important factor dictating evolutionary change associated to phyletic allometry and, consequently, species fitness and diversification. However, the role of the evolution of extreme body sizes (dwarfism and gigantism) remains elusive in snakes, mainly with respect to postnatal ontogeny in dietary preferences associated with evolution of gigantism in many lineages...
May 17, 2018: Anais da Academia Brasileira de Ciências
Rodrigo M DA Costa, Karina Karmirian, Stevens K Rehen
Neural development represents a dynamic process where mitochondrial integrity is decisive for neuronal activity. Structural changes in these organelles may be related to neurological disorders. Valproic acid (VPA) is an anticonvulsive drug commonly used for epilepsy treatment and its use is associated to increased risk of neuropsychiatric disorders. Recently we showed changes in shape and membrane potential in mitochondria from human neural progenitor cells (NPCs) exposed to VPA (da Costa et al. 2015). Here, we applied transmission electron microscopy and electron tomography to evaluate mitochondrial damage caused by VPA in NPCs...
April 23, 2018: Anais da Academia Brasileira de Ciências
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