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ABSTRACT The collapse of the Fundão Dam in Mariana, MG, in 2015 introduced the challenge of using Technosol, a soil type formed by deposition of iron mining waste along the Doce River banks, for agricultural purposes. This study aimed to determine the optimal water depth for enhancing production of tropical forage, Megathyrsus maximus cv. Mombasa, when grown on iron ore tailings. Additionally, it sought to establish a crop coefficient applicable to the edaphoclimatic conditions of Viçosa, MG, Brazil. The experiment was conducted throughout the summer, fall, and winter of 2022, employing 21 drainage lysimeters. A completely randomized experimental design was adopted, featuring six treatment groups (plants in Technosol receiving water depths ranging from 20 to 120% of the crop’s evapotranspiration, as derived from the control treatment), along with a control group (plants in Latosol with a depth of 100%), each with three repetitions. Our findings showed that irrigation must replace 40% of the crop evapotranspiration. Moreover, cultivating in Technosol resulted in a reduction of productive capacity by 37.39% during the summer/fall and fall seasons. For Mombasa grass grown in Oxisol, crop coefficients of 1.2 during the summer and 1.5 during the fall and winter are advised.

RESUMO O rompimento da Barragem do Fundão em Mariana, MG, ocorrida em 2015, trouxe o desafio de usar o Tecnossolo (tipo de solo) formado pela deposição do rejeito de mineração de ferro nas margens do Rio Doce para agricultura. O objetivo desta pesquisa foi obter a lâmina de água para otimizar a produção da forragem tropical Megathyrsus maximum cv. Mombaça, cultivada em rejeito de mineração de ferro e determinar seu coeficiente de cultura para as condições edafoclimáticas de Viçosa, MG. O experimento foi realizado durante as estações de verão, outono e inverno do ano de 2022, com a utilização de 21 lisímetros de drenagem. O experimento foi distribuído em delineamento inteiramente casualizado com 6 tratamentos (plantas em Tecnossolo com lâminas variando de 20 a 120% da evapotranspiração da cultura, obtida do tratamento-testemunha) e adição de uma testemunha (plantas em Latossolo com lâmina de 100%) com três repetições. Recomenda-se irrigação com reposição de 40% da evapotranspiração da cultura. O cultivo em Tecnossolo diminuiu a capacidade produtiva em 37,39% nos ciclos das estações do verão/outono e outono. Recomenda-se os coeficientes de cultura de 1,2 no verão e 1,5 no outono e no inverno, para o capim-Mombaça cultivado em um Latossolo.

https://doi.org/10.1590/1807-1929/agriambi.v28n3e275196

How many species of Mollusca are there in Brazil? A collective taxonomic effort to reveal this still unknown diversity
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Machado, Fabrizio M.

; Miranda, Marcel S.

; Salvador, Rodrigo B.

; Pimenta, Alexandre D.

; Côrtes, Mariana O.

; Gomes, Jaime A.J.

; Miyahira, Igor C.

; Agudo-Padrón, Ignacio

; Oliveira, Cléo D.C.

; Caetano, Carlos H.S.

; Coelho, Paulo R.S.

; D’Ávila, Sthefane

; Arruda, Eliane P. de

; Almeida, Sérgio M. de

; Gomes, Suzete R.

; Alvim, Juliana

; Galvão-Filho, Hilton

; L. Ferreira-Júnior, Augusto

; Marques, Rodrigo C.

; Martins, Inês

; Souza, Leonardo S. de

; Arruda, Janine O.

; Cavallari, Daniel C.

; Santos, Sonia B. dos

; Pedro, Natan C.

; Salles, Anna C. de A.

; Dornellas, Ana P.S.

; Lima, Tarcilla C. de

; Amaral, Vanessa S. do

; Silva, Fernanda S.

; Passos, Flávio D.

; Thiengo, Silvana S.

; Leite, Tatiana S.

; Simone, Luiz R.L.

Zoologia (Curitiba)

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2023, Volumen 40 elocation e23026

Resumen: En | Texto: En | PDF: En

ABSTRACT The expression ‘you need to know to conserve’ is a well-known cliche among biologists. Documenting the richness of a group of organisms is the first step towards understanding biodiversity and preparing efficient conservation plans. In this context, many efforts have been made to quantify the number of species on Earth and estimate the number of species still unknown to science. A few countries have complete and integrated databases estimating the approximate number of species recorded for their territory, particularly in the Global South. In Brazil, a country of continental dimensions, revealing the richness of the second most diverse clade of invertebrates (=Mollusca) has been a goal of taxonomists. Recently, in an unprecedented, collective, and integrated effort among Brazilian malacologists, it was possible to estimate how many valid species of molluscs are there in Brazil. In this effort, more than 30 mollusc experts joined together to update the Taxonomic Catalogue of the Brazilian Fauna (TCBF), a governmental website that allows a quick and real-time updating of all Metazoan. So far, more than 5,000 updates have been made in TCBF, indicating the presence of 3,552 valid species of molluscs in Brazil, distributed among the main clades as follows: Caudofoveata (10 spp.), Solenogastres (6 spp.), Polyplacophora (35 spp.), Scaphopoda (43 spp.), Cephalopoda (92 spp.), Bivalvia (629 spp.) and Gastropoda (2,737 spp.). The present study, in addition to demonstrating for the first time the richness of Brazilian molluscs, also presents the state of the art of this important phylum of invertebrates highlighting its most representative and neglected groups.

https://doi.org/10.1590/s1984-4689.v40.e23026

Evaluation of five parasitological techniques for diagnosing phylum Ciliophora cysts in fecal samples from free-living wild artiodactyls
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Pinheiro, Jessica L.

; Bruno, Sávio F.

; Dib, Laís V.

; Santos, Claudijane R. dos

; Class, Camila S.C.

; Lima, Marcelo S.

; Motoyama, Paulo Rogério A.

; Barbosa, Alynne S.

Pesquisa Veterinária Brasileira

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2023, Volumen 43 elocation e07192

Resumen: En Pt | Texto: En Pt | PDF: En | PDF: Pt

ABSTRACT: A variety of laboratory techniques are used in parasitological diagnosis. However, studies that analyze their laboratory efficiency are very scarce, especially with regard to biological samples from wild animals that are little known, with little popular attachment, such as artiodactyls. These can be infected by different parasites, including protozoa of the phylum Ciliophora, which includes the parasites Balantioides coli and Buxtonella sulcata. In this light, the aim of this study was to compare the efficiency of five coproparasitological techniques for diagnosing protozoan cysts of the phylum Ciliophora in the feces of free-living artiodactyls. To this end, 101 fecal samples were collected from trails in Pedra Selada State Park, Rio de Janeiro state, from 2020 to 2021. All the samples were analyzed using the qualitative techniques of modified Sheather floatation, modified Ritchie sedimentation and Lutz, as well as the quantitative techniques of Mini-FLOTAC and McMaster. Cyst recovery was best achieved using the modified Ritchie technique, in which 62.5% positivity was detected, followed by Lutz (47.5%), modified Sheather (37.5%) and the quantitative techniques of Mini-FLOTAC (30%) and McMaster (17.5%). In most of the comparisons between the techniques, reasonable agreement regarding the diagnosis was observed (Kappa 0.21 to 0.40), which was statistically significant (p≤0.05). McMaster showed higher mean and standard deviation values for counts of cysts per gram of feces than Mini-FLOTAC. However, there was no significant difference in the estimates for cyst counts (Wilcoxon p>0.05). Sedimentation qualitative techniques were more indicated for diagnosing cysts of protozoa of the phylum Ciliophora in the feces of free-living wild artiodactyls. These techniques can therefore be used as laboratory tools for environmental parasite monitoring. In addition, between the two quantitative techniques, Mini-FLOTAC presented better performance, thus showing its potential as a tool for estimating the abundance of cystic forms of the phylum Ciliophora in environmental samples.

RESUMO: Diversas são as técnicas laboratoriais utilizadas no diagnóstico parasitológico. No entanto, estudos que analisam a eficiência laboratorial das mesmas são muito escassos, principalmente quando se trata de amostras biológicas de animais silvestres, que possuem pouca divulgação e apego popular, como os artiodáctilos. Estes podem se infectar por diferentes parasitos, incluindo os protozoários do Filo Ciliophora, no qual se inclui Balantioides coli, bem como Buxtonella sulcata. Mediante o exposto, este estudo objetivou comparar a eficiência entre cinco técnicas coproparasitológicas para o diagnóstico de cistos de protozoário do Filo Ciliophora em fezes de artiodáctilos em vida livre. Entre 2020 e 2021 foram coletadas 101 amostras fecais em trilhas do Parque Estadual da Pedra Selada localizado no estado do Rio de Janeiro. Todas as amostras foram analisadas pelas técnicas qualitativas de flutuação de Sheather modificada, sedimentação de Ritchie modificada e Lutz, bem como por meio das técnicas quantitativas de Mini-FLOTAC e McMaster. Pode-se verificar uma superioridade na recuperação dos cistos por meio da técnica de Ritchie modificada, no qual foi detectado 62,5% de positividade, seguida pelo Lutz (47,5%), Sheather modificada (37,5%) e pelas técnicas quantitativas de Mini-FLOTAC (30%) e McMaster (17,5%). Na maioria das comparações entre as técnicas foi possível verificar uma concordância razoável (Kappa 0,21 a 0,40) em relação ao diagnóstico entre as mesmas, sendo este estatisticamente significativo (p≤0,05). McMaster em comparação com o Mini-FLOTAC foi a que apresentou os maiores valores médio e de desvio padrão na contagem dos cistos por grama de fezes. No entanto, não foi evidenciado diferença significativa na estimativa de contagem dos cistos (Wilcoxon=p>0,05). Pode-se verificar que as técnicas qualitativas de sedimentação foram consideradas as mais indicadas para o diagnóstico de cistos do protozoário do Filo Ciliophora em fezes de artiodáctilos silvestres em vida livre, podendo ser utilizadas como ferramentas laboratoriais de monitoramento parasitário ambiental. Além disso, dentre as técnicas quantitativas, o Mini-FLOTAC foi a que apresentou a melhor performance, denotando o seu potencial como uma ferramenta para se estimar a abundância de formas císticas do Filo Ciliophora em amostra ambiental.

https://doi.org/10.1590/1678-5150-pvb-7192

Synthesis and Anticancer Activity of Homodimeric Morita-Baylis-Hillman Adducts Based on 3-Hydroxyindolin-2-one Core
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Coelho, Maísa C.

; Castro, Aleff

; Olegário, Tayná R.

; Cristiano, Rodrigo

; Vaz, Boniek G.

; Santos, Gabriel F. dos

; Machado, Lucas S.

; Militão, Gardênia C. G.

; Silva, Paulo B. N. da

; Vasconcellos, Mário L. A. A.

; Lima-Junior, Claudio G.

Journal of the Brazilian Chemical Society

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2023, Volumen 34 Nº 9 Paginas 1273 - 1283

Resumen: En | Texto: En | PDF: En

Cancer treatment represents one of the main scientific study targets today, mainly due to the pronounced side effects arising from chemotherapy. This study reports the synthesis, characterization, and anticancer activity of ten compounds from the Morita-Baylis-Hillman reaction. Ethylene glycol diacrylate was used as a double Michael acceptor in reactions with isatin derivatives to give homodimers of 3-hydroxyindolin-2-one core, recognized in the literature for its extensive pharmacological profile. The use of 1,4-diazabicyclo[2,2,2]octane (DABCO) as a catalyst and room temperature were the optimal conditions for the study reaction. The isolated yields were up to 63%, with most reaction times inferior to 24 h, some as fast as 15 min. The anticancer potential of the synthesized dimers was evaluated in vitro against three cancer strains, resulting in average inhibitory concentrations up to 0.72 µM. It was also found that the best performing homodimers are more active than their monomeric counterparts. Considering the promising selectivity indices observed, the preliminary results obtained here act as a basis for broader tests regarding the effectiveness of homodimeric adducts against cancer cells.

https://doi.org/10.21577/0103-5053.20230038

Four Brazilian Potential Species Almost Unexplored of Connaraceae Family Used Popularly for Diabetes: Chemical Composition and in vitro Activity
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Paim, Luís Fernando N. A.

; Acho, Leonard D. R.

; Santos, Paulo Roberto dos

; Toledo, Cássio Augusto P.

; Minello, Luana

; Paz, Joicelene Regina L. da

; Lima, Emerson

; Salvador, Mirian

; Moura, Sidnei

Journal of the Brazilian Chemical Society

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2023, Volumen 34 Nº 12 Paginas 1773 - 1787

Resumen: En | Texto: En | PDF: En

Connaraceae is a plant family usually used in traditional medicine. Recently, we have reported the chemical composition and biological activity of 39 species around the world. This work highlights the application of these species to diabetes control, which has been reported at least to half of this family. In this line, there are several species of the Connaraceae without scientific evidence of traditional use, among these the four species study here. Thus, this work aims the chemical composition prospection of Connarus blanchetii, Connarus regnellii, Connarus suberosus and Rourea glazioui, as well as the identification of possible bioactivity. The leaves of these four species were collected, prepared and submitted to different extractive methods (aqueous decoction and infusion and ethanolic maceration), these being tested in a preliminary phytochemical investigation and subjected to antioxidant assay with 2,2-diphenyl-1-picrylhydrazyl and ferric reducing antioxidant power. Then, we selected the maceration extract to continue for fractions, with the ethyl acetate and n-butanol presenting the best results with antioxidant and anti-advanced glycation end products (AGEs) activity potential. Finally, the chemical composition was determinate by high-resolution mass spectrometry (HRMS) in combination with Global Natural Products Service (GNPS) data bank. As a result, this study indicated the presence of 29 phenolics compounds with reported activity as antioxidant and with potential of protein glycation, supported the diabetes activity of this plants. The n-butanolic fraction of R. glazioui showed compounds such as apigenin, kaempferol, quercetin, myricetin and chlorogenic acid, which have generated a half maximal inhibitory concentration (IC50) of 36.5 µg mL 1 for oxidative glycation inhibition, being highlighted as the most active.

https://doi.org/10.21577/0103-5053.20230070

Associação entre Bloqueio Atrioventricular e Mortalidade em Pacientes de Atenção Primária: O Estudo CODE
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Paixão, Gabriela Miana de Mattos

; Lima, Emilly M.

; Quadros, André B.

; Cabral, Daniel P. R.

; Coelho, Renato R.

; Oliveira, Derick M.

; Nascimento, Jamil de Souza

; Gomes, Paulo R.

; Ribeiro, Antonio L.

Arquivos Brasileiros de Cardiologia

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Oct 2022, Volumen 119 Nº 4 Paginas 564 - 571

Resumen: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo Fundamento O bloqueio atrioventricular (BAV) descreve um comprometimento na condução dos átrios para os ventrículos. Embora o curso clínico do BAV tenha sido avaliado, os achados são de países de alta renda e, portanto, não podem ser extrapolados para a população latina. Objetivo Avaliar a associação entre BAV e mortalidade. Métodos Foram incluídos pacientes do estudo CODE (Clinical Outcomes in Digital Electrocardiology), maiores de 16 anos que realizaram eletrocardiograma (ECG) digital de 2010 a 2017. Os ECGs foram relatados por cardiologistas e por software automatizado. Para avaliar a relação entre BAV e mortalidade, foram utilizados o modelo log-normal e as curvas de Kaplan-Meier com valores de p bicaudais < 0,05 considerados estatisticamente significativos. Resultados O estudo incluiu 1.557.901 pacientes; 40,23% eram homens e a média de idade foi de 51,7 (DP ± 17,6) anos. Durante um seguimento médio de 3,7 anos, a mortalidade foi de 3,35%. A prevalência de BAV foi de 1,38% (21.538). Os pacientes com BAV de primeiro, segundo e terceiro graus foram associados a uma taxa de sobrevida 24% (taxa de sobrevida relativa [RS] = 0,76; intervalo de confiança [IC] de 95%: 0,71 a 0,81; p < 0,001), 55% (RS = 0,45; IC de 95%: 0,27 a 0,77; p = 0,01) e 64% (RS = 0,36; IC de 95%: 0,26 a 0,49; p < 0,001) menor quando comparados ao grupo controle, respectivamente. Os pacientes com BAV 2:1 tiveram 79% (RS = 0,21; IC de 95%: 0,08 a 0,52; p = 0,005) menor taxa de sobrevida do que o grupo controle. Apenas Mobitz tipo I não foi associado a maior mortalidade (p = 0,27). Conclusão BAV foi um fator de risco independente para mortalidade geral, com exceção do BAV Mobitz tipo I.

Abstract Background Atrioventricular block (AVB) describes an impairment of conduction from the atria to the ventricles. Although the clinical course of AVB has been evaluated, the findings are from high-income countries and, therefore, cannot be extrapolated to the Latinx population. Objective Evaluate the association between AVB and mortality. Methods Patients from the CODE (Clinical Outcomes in Digital Electrocardiology) study, older than 16 years who underwent digital electrocardiogram (ECG) from 2010 to 2017 were included. ECGs were reported by cardiologists and by automated software. To assess the relationship between AVB and mortality, the log-normal model and the Kaplan-Meier curves were used with two-tailed p-values < 0.05 considered statistically significant. Results The study included 1,557,901 patients; 40.2% were men, and mean age was 51.7 (standard deviation ± 17.6) years. In a mean follow-up of 3.7 years, the mortality rate was 3.35%. The AVB prevalence was 1.38% (21,538). Patients with first-, second-, and third-degree AVB were associated with 24% (relative survival rate [RS] = 0.76; 95% confidence interval [CI]: 0.71-0.81; p < 0.001), 55% (RS = 0.45; 95% CI: 0.27-0.77; p = 0.01), and 64% (RS = 0.36; 95% CI: 0.26-0.49; p < 0.001) lower survival rate when compared to the control group, respectively. Patients with 2:1 AVB had 79% (RS = 0.21; 95% CI: 0.08-0.52; p = 0.005) lower survival rate than the control group. Only Mobitz type I was not associated with higher mortality (p = 0.27). Conclusion AVB was an independent risk factor for overall mortality, with the exception of Mobitz type I.

https://doi.org/10.36660/abc.20210763

CYP450 Metabolism of a Semisynthetic Naphthoquinone, an Anticancer Drug Candidate, by Human Liver Microsomes
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Costa, Edna M. A.

; Carrão, Daniel B.

; Bucci, Jade L. M.

; Oliveira, Anderson R. M.

; Machado, Tallita M.

; Ferreira, Vitor F.

; Lima, Émerson S.

; Vasconcellos, Marne C.

; Magalhães, Igor R. S.

Journal of the Brazilian Chemical Society

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Oct 2022, Volumen 33 Nº 10 Paginas 1145 - 1153

Resumen: En | Texto: En | PDF: En

CNFD (6b,7-dihydro-5H-cyclopenta[b]naphtho[2,1-d]furan-5,6(9aH)-dione) is a semisynthetic naphthoquinone derived from lawsone that has cytotoxic action in different tumor lines and anticancer activity in vivo. Therefore, this molecule is a relevant candidate for drug development, but there is still no information on its human metabolism and systemic elimination. This study aimed to investigate the in vitro metabolism of this naphthoquinone by human liver microsomes. Initially, in order to determine the in vitro enzymatic kinetic parameters, a high performance liquid chromatography (HPLC) method to quantify the CNFD was developed and validated. In addition, the enzymatic kinetic data, the predicted pharmacokinetic in vivo parameters and the phenotyping study were presented. The main metabolism sites and metabolites have been suggested in silico. The developed HPLC method was linear, reproducible, selective, accurate, and stable. The enzymatic kinetic parameters revealed a sigmoidal profile. In vitro to in vivo extrapolation hepatic metabolic clearance was 10.39 mL min-1 kg-1 protein and the liver extraction rate was 51%. The clearance in vivo associated with a hepatic extraction ratio indicates that the hepatic metabolism is the main route of elimination. Although all cytochrome P450 enzymes evaluated metabolized CNFD, CYP2C9 and CYP3A4 showed higher metabolic capacity. For the first time, metabolism studies of CNFD were demonstrated.

https://doi.org/10.21577/0103-5053.20220034

Mammals in São Paulo State: diversity, distribution, ecology, and conservation
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Galetti, Mauro

; Carmignotto, Ana Paula

; Percequillo, Alexandre R.

; Santos, Marcos C. de O.

; Ferraz, Katia Maria P. M. de Barros

; Lima, Fernando

; Vancine, Maurício H.

; Muylaert, Renata L.

; Bonfim, Fernando César Gonçalves

; Magioli, Marcelo

; Abra, Fernanda D.

; Chiarello, Adriano G.

; Duarte, José Maurício Barbanti

; Morato, Ronaldo

; de Mello Beisiegel, Beatriz

; Olmos, Fábio

; Galetti Jr., Pedro Manoel

; Ribeiro, Milton Cezar

Biota Neotropica

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2022, Volumen 22 Nº spe elocation e20221363

Resumen: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo Os mamíferos são organismos carismáticos que desempenham um papel fundamental na função ecológica e nos serviços ecossistêmicos, como polinização, dispersão de sementes, ciclagem de nutrientes e controle de pragas. O Estado de São Paulo representa apenas 3% do território brasileiro, mas detém 33% da diversidade de mamíferos. A maior parte de seu território é dominado pela agricultura, pastagens e áreas urbanas que afetam diretamente a diversidade e a persistência dos mamíferos na paisagem. Além disso, São Paulo possui o maior porto da América Latina e o maior reservatório de petróleo costeiro do Brasil, com 600 km de extensão de litoral com diversas espécies de mamíferos marinhos. Essas infraestruturas afetam a diversidade, distribuição, ecologia e o futuro dos mamíferos no estado. Aqui, respondemos cinco perguntas principais: 1) Qual é a diversidade de mamíferos silvestres no Estado de São Paulo? 2) Onde eles ocorrem? 3) Qual é o seu impacto positivo e negativo no bem-estar humano? 4) Como os mamíferos persistem em paisagens modificadas pelo homem? 5) Qual é o futuro dos mamíferos no estado? O estado de São Paulo possui 255 espécies de mamíferos nativos, com quatro espécies endêmicas, duas delas globalmente ameaçadas de extinção. Pelo menos seis espécies (dois marsupiais, ariranha, veado-campeiro, veado-cambuta e tatu-canastra) foram extirpadas do estado devido à caça e perda de habitat. O intenso uso humano da terra no estado forçou muitas espécies de mamíferos a mudar sua dieta para lidar com a intensa fragmentação e agricultura. A monocultura em larga escala facilitou a invasão de espécies exóticas, como porcos selvagens (javaporco) e a lebre europeia. Várias espécies de áreas abertas estão expandindo suas áreas de distribuição (lobo-guará, veado-catingueiro) sobre áreas desmatadas e provavelmente refletem mudanças em direção a um clima mais seco. Como o estado possui o maior sistema rodoviário do Brasil, cerca de 40 mil mamíferos de 33 espécies são mortos por ano em colisões, causando um prejuízo econômico de 12 milhões de dólares/ano. A diversidade de mamíferos está concentrada nos maiores remanescentes florestais da Serra do Mar e no interior do Estado, principalmente nas regiões de Ribeirão Preto e Jundiaí. As lacunas amostrais estão concentradas em todo o interior do estado, principalmente na região noroeste. Os mamíferos silvestres desempenham um papel fundamental em muitos serviços ecossistêmicos, mas também podem ser uma preocupação em trazer novas doenças emergentes para as populações humanas. Embora a taxonomia de mamíferos pareça ser bem conhecida, mostramos que novas espécies estão sendo continuamente descobertas no estado. Portanto, pesquisas usando tecnologias tradicionais e novas (eDNA, iDNA, drones), monitoramento populacional de longo prazo, a investigação da interface do conflito homem-vida selvagem e a compreensão do papel único no ecossistema desempenhado pelos mamíferos são um caminho futuro para promover uma paisagem verde sustentável aliada ao bem-estar humano no estado. O plantio de corredores florestais ou de cerrado, principalmente junto aos principais sistemas fluviais, no planalto, o controle da caça ilegal nas áreas costeiras, o manejo dos regimes de fogo no Cerrado e a mitigação dos atropelamentos devem ser uma prioridade para proteger essa notável diversidade de mamíferos.

Abstract Mammals are charismatic organisms that play a fundamental role in ecological functions and ecosystem services, such as pollination, seed dispersal, nutrient cycling, and pest control. The state of São Paulo represents only 3% of the Brazilian territory but holds 33% of its mammalian diversity. Most of its territory is dominated by agriculture, pastures, and urban areas which directly affect the diversity and persistence of mammals in the landscape. In addition, São Paulo has the largest port in Latin America and the largest offshore oil reservoir in Brazil, with a 600 km stretch of coastline with several marine mammal species. These human-made infrastructures affect the diversity, distribution, ecology, and the future of mammals in the state. Here, we answer five main questions: 1) What is the diversity of wild mammals in São Paulo state? 2) Where are they? 3) What is their positive and negative impact on human well-being? 4) How do mammals thrive in human-modified landscapes? 5) What is the future of mammals in the state? The state of São Paulo holds 255 species of native mammals, with four endemic species, two of them globally endangered. At least six species (two marsupials, Giant otter, Pampas deer, Brazilian dwarf brocket deer, and Giant armadillo) were extirpated from the state due to hunting and habitat loss. The intense human land use in the state forced many mammalian species to change their diet to cope with the intense fragmentation and agriculture. Large-scale monoculture has facilitated the invasion of exotic species such as wild boars (javali) and the European hare. Several “savanna-dwelling” species are expanding their ranges (Maned wolf, Brocket deer) over deforested areas and probably reflect changes towards a drier climate. Because the state has the largest road system, about 40,000 mammals from 33 species are killed per year in collisions causing an economic loss of 12 million dollars/year. The diversity of mammals is concentrated in the largest forest remnants of Serra do Mar and in the interior of the State, mainly in the regions of Ribeirão Preto and Jundiaí. Sampling gaps are concentrated throughout the interior of the state, particularly in the northwest region. Wild mammals play a fundamental role in many ecosystem services, but they can also be a concern in bringing new emergent diseases to humans. Although the taxonomy of mammals seems to be well known, we show that new species are continuously being discovered in the state. Therefore, continuous surveys using traditional and new technologies (eDNA, iDNA, drones), long-term population monitoring, investigation of the interface of human-wildlife conflict, and understanding of the unique ecosystem role played by mammals are future avenues for promoting sustainable green landscapes allied to human well-being in the state. The planting of forest or savanna corridors, particularly along with major river systems, in the plateau, controlling illegal hunting in the coastal areas, managing fire regimes in the Cerrado, and mitigating roadkill must be prioritized to protect this outstanding mammal diversity.

https://doi.org/10.1590/1676-0611-bn-2022-1363

Evaluation of the Seasonality and Extraction Method on the Polar Extracts of Croton grewioides Baill. by Chromatogram Fingerprinting and Isolation of a New Triglycosylated Flavonoid
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Prado, Vilma M. J.

; Jesus, Raphael A. de

; Oliveira, Julio M. A.

; Pereira, Camila S. A.

; Blank, Arie F.

; Pereira-Filho, Edenir R.

; Cass, Quezia B.

; Lima, Juliana M. de

; Ferreira, Antonio G.

; Nogueira, Paulo C. L.

; Moraes, Valéria R. S.

Journal of the Brazilian Chemical Society

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Feb 2021, Volumen 32 Nº 2 Paginas 385 - 394

Resumen: En | Texto: En | PDF: En

Croton grewioides Baill. popularly known as “canelinha” or “canelinha-de-cheiro” has been used for the treatment of influenza, antitussive, febrifuge and headache; however, the study of its phytochemical composition is limited. The aim of this study was to investigate the effect of the extraction method and seasonality through leaf extracts of four accessions of Croton grewioides by fingerprint chromatograms aided by principal component analysis to analyze the differences and similarities among the samples. We aimed also to provide chemical characterization of isolated secondary metabolites using semi-preparative liquid chromatography. The results showed that only the chemical profile of the methanolic extracts of accessions 101 and 113 were influenced by the seasonality. For the first time, four flavonoids were isolated through semi-preparative chromatography in this species, characterized as quercetin 3-O-β-D-galactopyranosyl-(1→2)-α-L-rhamnopyranoside-(1→6)-α-L-rhamnopyranoside (1), quercetin 3-O-β-D-galactopyranosyl-(1→2)-α-apiopyranoside-(1→6)-α-L-rhamnopyranoside (2), quercetin 3-O-glucopyranoside (3) and 3-O-methyl-quercetin (4), the flavonoid (2) has been recognized as a new triglycosylated derivative.

https://doi.org/10.21577/0103-5053.20200190 249 descargas

10.

Morita-Baylis-Hillman Reaction with 7-Chloroquinoline Derivatives-New Compounds with Potential Anticancer Activity
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Oliveira, João Paulo G.

; Caleffi, Guilherme S.

; Silva, Everton P.

; Coelho, Maísa C.

; Castro, Aleff C.

; Mendes, Rhuan K. S.

; Olegário, Tayná R.

; Lima-Junior, Claudio G.

; Vasconcellos, Mario L. A. A.

; Souza, Júlia L. C.

; Souza, Sílvia M.

; Militão, Gardênia C. G.

; Vaz, Boniek G.

; Ramalho, Ruver R. F.

Journal of the Brazilian Chemical Society

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Feb 2021, Volumen 32 Nº 2 Paginas 347 - 354

Resumen: En | Texto: En | PDF: En

Morita-Baylis-Hillman adducts (MBHA) is a class of polyfunctional molecules that has been standing out due to their versatility and expressive biological activities. Therefore, this paper describes the synthesis and antiproliferative activity of some new MBHA/7-choroquinoline hybrids. The Michael acceptors were obtained starting from 4,7-dichloroquinoline which were submitted to the Morita-Baylis-Hillman reaction with ortho, meta and para-nitrobenzaldehyde. The in vitro screening of the synthetized MBHA against NCI-H292, HCT-116 and MCF-7 cancer cells suggests the influence of the spacer chain in its inhibition potential. The 50% inhibitory concentration (IC50) obtained in the antiproliferative assay using MCF-7, HCT-116, HL-60 and NCI-H292 cancer cells indicate expressive cytotoxic potential of the adducts containing nitro group in the ortho position, with IC50 of 4.60 µmol L-1. MBHA/7-choroquinoline hybrids were more active than MBHA described in literature, indicating the improvement of the cytotoxic effect due to 7-chloroquinoline moiety in the molecular structure, with maximum selectivity index values of 11.89.

https://doi.org/10.21577/0103-5053.20200185 303 descargas

11.

Poor Sleep quality and health-related quality of life impact in adolescents with and without chronic immunosuppressive conditions during COVID-19 quarantine
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Helito, Alberto C.

; Lindoso, Livia

; Sieczkowska, Sofia M.

; Astley, Camilla

; Queiroz, Ligia B.

; Rose, Natalia

; Santos, Claudia Renata P.

; Bolzan, Thalis

; Peralta, Rita María I.A.

; Franco, Ruth R.

; Cominato, Louise

; Pereira, Rosa Maria R.

; Tannuri, Uenis

; Campos, Lucia Maria A.

; Lourenço, Benito

; Toma, Ricardo K.

; Medeiros, Karina

; Watanabe, Andréia

; Grangeiro, Patricia Moreno

; Farhat, Sylvia C.

; Casella, Caio B.

; Polanczyk, Guilherme V.

; Gualano, Bruno

; Silva, Clovis A.

; Sallum, Adriana M. E.

; Iraha, Amanda Y.

; Ihara, Bianca P.

; Mazzolani, Bruna C.

; Martinez, Claudia A.

; Strabelli, Claudia A. A.

; Fonseca, Claudia B.

; Lima, Dandara C. C.

; Setoue, Debora N. D.

; Roz, Deborah F. P.

; Smaira, Fabiana I.

; Roschel, Hamilton

; Miyatani, Helena T.

; Marques, Isabela G.

; Oba, Jane

; Ferreira, Juliana C. O.

; Simon, Juliana R.

; Kozu, Katia

; Saccani, Ligia P.

; Martiniano, Lorena V. M.

; Miranda, Luana C. A.

; Silva, Luiz E. V.

; Laurentino, Moisés F.

; Aikawa, Nadia E.

; Sakita, Neusa K.

; Tanigava, Nicolas Y.

; Pereira, Paulo R. A.

; Palmeira, Patrícia

; Angelo, Simone S.

; Lavorato, Sofia S. M.

; Bernardes, Tamires M.

; Franco, Tathiane C.

; Viana, Vivianne S. L.

; Barros, Vera P. M. F. R.

; Zheng, Yingying

Clinics

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2021, Volumen 76 elocation e3501

Resumen: En | Texto: En | PDF: En

OBJECTIVE: To assess the possible factors that influence sleep quality in adolescents with and without chronic immunosuppressive conditions quarantined during the coronavirus disease 2019 (COVID-19) pandemic. METHODS: This cross-sectional study included 305 adolescents with chronic immunocompromised conditions and 82 healthy adolescents. Online surveys were completed, which included questions on socio-demographic data and self-rated healthcare routine during COVID-19 quarantine and the following validated questionnaires: the Pittsburgh Sleep Quality Index (PSQI), Pediatric Quality of Life Inventory 4.0 (PedsQL4.0), and Pediatric Outcome Data Collection Instrument (PODCI). RESULTS: The median current age [14 (10-18) vs. 15 (10-18) years, p=0.847] and frequency of female sex (62% vs. 58%, p=0.571) were similar in adolescents with chronic conditions compared with healthy adolescents. The frequency of poor sleep quality was similar in both groups (38% vs. 48%, p=0.118). Logistic regression analysis, including both healthy adolescents and adolescents with chronic conditions (n=387), demonstrated that self-reported increase in screen time (odds ratio [OR] 3.0; 95% confidence interval [CI] 1.3-6.8; p=0.008) and intrafamilial violence report (OR 2.1; 95% CI 1.2-3.5; p=0.008) were independently associated with poor sleep quality in these adolescents. However, the PODCI global function score was associated with a lower OR for poor sleep quality (OR 0.97; 95% CI 0.94-0.99; p=0.001). Further logistic regression, including only adolescents with chronic conditions (n=305), demonstrated that self-reported increase in screen time (OR 3.1; 95% CI 1.4-6.8; p=0.006) and intrafamilial violence report (OR 2.0; 95% CI 1.2-3.4; p=0.011) remained independently associated with poor quality of sleep, whereas a lower PODCI global function score was associated with a lower OR for sleep quality (OR 0.96; 95% CI 0.94-0.98; p<0.001). CONCLUSION: Self-reported increases in screen time and intrafamilial violence report impacted sleep quality in both healthy adolescents and those with chronic conditions. Decreased health-related quality of life was observed in adolescents with poor sleep quality.

https://doi.org/10.6061/clinics/2021/e3501

12.

Organic fertilization in the production and chemical composition of non-conventional leafy vegetables
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Batista, Deborah Sepini

; Mantovani, José Ricardo

; Silva, Luis Felipe Lima e

; Souza, Douglas Correa de

; Landgraf, Paulo Roberto Corrêa

Pesquisa Agropecuária Tropical

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2021, Volumen 51 elocation e66508

Resumen: Pt En | Texto: Pt En | PDF: Pt | PDF: En

RESUMO As hortaliças folhosas não convencionais podem ser uma boa fonte de nutrientes para a dieta humana, mas há poucas informações sobre adubação para essas espécies. Objetivou-se avaliar o efeito da adubação orgânica com esterco bovino na produção e composição química de hortaliças folhosas não convencionais. O experimento foi conduzido em casa-de-vegetação, em vasos. Os fatores em estudo foram espécies de hortaliças não convencionais (Rumex acetosa, Stachys byzantina e Lactuca canadensis) e doses de esterco bovino (0; 5; 10; 15; e 20 t ha-1), arranjados em esquema fatorial 3 x 5, em delineamento de blocos ao acaso, com quatro repetições. Na colheita, foram avaliados o diâmetro de caule, número total de folhas, número de folhas com padrão comercial, matéria fresca e seca da parte aérea, concentração e quantidades acumuladas de macro e micronutrientes na parte aérea. A adubação com esterco bovino alterou o diâmetro de caule, número de folhas com padrão comercial, matéria fresca e seca da parte aérea, bem como o acúmulo dos nutrientes N, P, K, Ca, Fe, Mn e Zn na parte aérea das três espécies estudadas. Os acréscimos obtidos variaram de 1,1 a 2,1 vezes, em relação ao tratamento sem adubação orgânica, e a dose equivalente a 20 t ha-1 foi a mais adequada. A adubação orgânica com esterco bovino aumenta a produção e o acúmulo de nutrientes nas hortaliças não convencionais avaliadas, sendo que R. acetosa apresenta maior acúmulo de nutrientes do que S. byzantina e L. canadensis.

ABSTRACT Non-conventional leafy vegetables can be a good source of nutrients for the human diet, but there is little information on fertilization for these species. This study aimed to evaluate the effect of organic fertilization with cattle manure on the production and chemical composition of non-conventional leafy vegetables. The experiment was conducted in a greenhouse, in pots. The factors under study were non-conventional leafy species (Rumex acetosa, Stachys byzantina and Lactuca canadensis) and cattle manure doses (0; 5; 10; 15; and 20 t ha-1), arranged in a 3 x 5 factorial scheme, in a randomized block design, with four replications. At harvest, the following parameters were evaluated: stem diameter; total number of leaves; number of leaves with commercial standard; shoot fresh and dry matter; macro and micronutrients concentration and accumulated amounts in the shoot. The fertilization with cattle manure altered the stem diameter, number of leaves with commercial standard, shoot fresh and dry matter, as well as the accumulation of the nutrients N, P, K, Ca, Fe, Mn and Zn in the shoot of the three species studied. The additions obtained varied from 1.1 to 2.1 times, in relation to the treatment without organic fertilization, and the dose equivalent to 20 t ha-1 was the most adequate one. The organic fertilization with cattle manure increases the production and accumulation of nutrients in the non-conventional vegetables evaluated, with R. acetosa presenting a nutrient accumulation higher than S. byzantina and L. canadensis.

https://doi.org/10.1590/1983-40632021v5166508 178 descargas

13.

Intercalation of Apocarotenoids from Annatto (Bixa orellana L.) into Layered Double Hydroxides
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Perotti, Gustavo F.

; Silva, Felipe F.

; Couto, Ricardo A. A. de

; Lima, Filipe C. D. A.

; Petrilli, Helena M.

; Leroux, Fabrice

; Ferreira, Ana M. C.

; Constantino, Vera R. L.

Journal of the Brazilian Chemical Society

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Nov 2020, Volumen 31 Nº 11 Paginas 2211 - 2223

Resumen: En | Texto: En | PDF: En

Synthetic conditions were evaluated to intercalate norbixin into layered double hydroxides (LDH). Norbixin was isolated from a hydrosoluble commercial annatto extract. LDH samples comprising M2+/Al3+ (M = Mg, Zn) were synthesized by coprecipitation and characterized by X-ray diffraction, thermal analysis coupled to mass spectrometry, vibrational spectroscopies, and solid-state 13C nuclear magnetic resonance. Radical scavenging activity of LDH hybrids was monitored by electron paramagnetic resonance towards the stable radical DPPH (1,1-diphenyl-2-picrylhydrazyl). LDH hosts presented more than 50 wt.% of norbixin and d-spacing (003) values of about 2.5 or 3.0 nm depending of the cation LDH composition. Vibrational spectra assignment (supported by density functional theory calculations) confirmed the chemical integrity of norbixin after intercalation into LDH. The inorganic layers were found to enhance the thermal stability of norbixin upon intercalation. The free radical scavenging capacity of norbixin was retained when immobilized into LDH. Considering that zinc and magnesium-LDH matrices are biocompatible and that norbixin presents biological activity, the hybrid materials appear as promising systems for biomedical assessment.

https://doi.org/10.21577/0103-5053.20200065 441 descargas

14.

Cross-cultural adaptation of the City Birth Trauma Scale for the Brazilian context
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DONADON, MARIANA FORTUNATA

; DARWIN, ANA CAROLINA R.

; BOMBONATTI, EDUARDO A.

; PEREIRA-LIMA, KARINA

; SANTOS, RAFAEL GUIMARÃES

; MACHADO-DE-SOUSA, JOÃO PAULO

; SILVA, THIAGO DORNELA APOLINÁRIO DA

; POLI NETO, OMERO B.

; GASPARDO, CLAUDIA MARIA

; CANTILINO, AMAURY

; SOUZA, LUCIANO DIAS DE MATTOS

; AYRES, SUSAN

; OSÓRIO, FLÁVIA L.

Archives of Clinical Psychiatry (São Paulo)

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Ago 2020, Volumen 47 Nº 4 Paginas 110 - 118

Resumen: En | Texto: En | PDF: En

Abstract Background Posttraumatic stress disorder consists of a set of symptoms that occurs in response to one or more traumatic events and can occur in postpartum, from traumatic situations related to the birth or to the baby’s health in the first days of life. It is important tracking the presence of birth trauma, but there is not available instruments in the Brazilian context for this purpose. Objectives To present the cross-cultural adaptation of City Birth Trauma Scale (BiTS) into Brazilian portuguese. Methods Cross-cultural adaptation involved independent translations, synthesis,back-translation, and submission to the original author’s appreciation. After the scale was subjected to face validity, followed by a pilot study with postpartum mothers. Results All steps were performed for the cross-cultural adaptation. Regarding face validity, items evaluated concerning different types of equivalence, presented satisfactory agreement values (≥4.20). Most of the expert’s suggestions were followed, being the main ones related to adjustments in prepositions, pronouns and verbal subjects. Pilot study showed that the mothers had been able to understand and respond to the instrument without adjustments. Discussion BiTS’s Brazilian version proved to be cross-culturally adapted, ensuring the possibility of intercultural data comparison from the semantic, idiomatic, cultural, and conceptual perspectives. New studies are being conducted to attest its psychometric adequacy.

https://doi.org/10.1590/0101-60830000000243 794 descargas

15.

Concentration of Metals in Plant Litter Produced in Regions of Caatinga in Southwest Bahia, Brazil
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Lima, Joaly S. S. O.

; Gomes, Ivaldo S.

; Cerqueira, Uillian M. F. M.

; Carneiro, Paulo L. S.

; Sousa Filho, Hélio R.

; Jesus, Raildo M. de

; Bezerra, Marcos A.

Journal of the Brazilian Chemical Society

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Jul 2020, Volumen 31 Nº 7 Paginas 1445 - 1452

Resumen: En | Texto: En | PDF: En

Plant litter has several functions in a forest ecosystem. Studies about plant litter are of great importance to better understand and conserve ecological environments. The objective of this study was to investigate the concentration of metals (Fe, Co, Ca, Cu, Ni, Mg, Mn and Zn) in Caatinga plant litter in the southwest region of Bahia. Plant litter was collected in summer (January/2017) and winter (August/2017). Concentrations were determined by flame atomic absorption spectrometry (FAAS). The results were submitted to multivariate analysis, principal component analysis (PCA), and hierarchical cluster analysis (HCA). The average amount of plant litter found in January and August was 1190 and 1329 kg ha-1, respectively. The twigs fraction provided the largest amount of biomass to the plant litter since this deposition occurred in greater quantity in August, a period of drought. Metal concentrations (g kg-1) in the analyzed samples ranged from 1.39-257 (Fe), < limit of quantification (LOQ)-0.269 (Co), 0.0036-0.61 (Cu), 1.39-8.76 (Ca), 0.0022-0.56 (Ni), 0.137-1.52 (Mg), 0.033-1.91 (Mn) and 0.0022-0.8 (Zn). The multivariate analysis showed that the composition of plant litter is altered seasonally.

https://doi.org/10.21577/0103-5053.20200029 206 descargas

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