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[SciELO Preprints] - Guidelines on the Diagnosis and Treatment of Hypertrophic Cardiomyopathy – 2024
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Fernandes, Fabio Simões, Marcus V. Correia, Edileide de Barros Marcondes-Braga, Fabiana G. Coelho-Filho, Otavio Rizzi Mesquita, Cláudio Tinoco Mathias-Junior, Wilson Rochitte, Carlos Eduardo Ramires, Felix José Alvarez Alves, Silvia Marinho Martins Montera, Marcelo Westerlund Lopes, Renato Delascio Oliveira-Junior, Mucio Tavares Scolari, Fernando L. Avila, Walkiria Samuel Canesin, Manoel Fernandes Bacal, Fernando Bocchi, Edimar Alcides Moura, Lídia Ana Zytynski Saad, Eduardo Benchimol Scanavacca, Mauricio I. Valdigem, Bruno Pereira Cano , Manuel Nicolas Abizaid , Alexandre Ribeiro, Henrique Barbosa Lemos-Neto, Pedro Alves Ribeiro, Gustavo Calado de Aguiar Jatene, Fabio Biscegli Dias, Ricardo Ribeiro Beck-da-Silva, Luis Rohde, Luis Eduardo P. Bittencourt, Marcelo Imbroinise Pereira, Alexandre Krieger, José Eduardo Villacorta, Humberto Martins, Wolney de Andrade Figueiredo-Neto, José Albuquerque de Cardoso , Juliano Novaes Pastore, Carlos Alberto Jatene, Ieda Biscegli Tanaka, Ana Cristina Sayuri Hotta, Viviane Tiemi Romano, Minna Moreira Dias Albuquerque, Denilson Campos de Mourilhe-Rocha, Ricardo Hajjar, Ludhmila Abrahão Brito, Fabio Sandoli de Caramelli , Bruno Calderaro, Daniela Farsky, Pedro Silvio Colafranceschi , Alexandre Siciliano Pinto, Ibraim Masciarelli Vieira , Marcelo Luiz Campos Danzmann, Luiz Claudio Barberato , Silvio Henrique Mady, Charles Martinelli-Filho, Martino Torbey , Ana Flavia Malheiros Schwartzmann, Pedro Vellosa Macedo, Ariane Vieira Scarlatelli Ferreira , Silvia Moreira Ayub Schmidt, Andre Melo , Marcelo Dantas Tavares de Lima-Filho, Moysés Oliveira Sposito, Andrei C. Brito, Flavio de Souza Biolo, Andreia Madrini-Junior, Vagner Rizk, Stéphanie Itala Mesquita, Evandro Tinoco

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Data de publicação: 2024-04-08

Resumo: Pt Es En

A cardiomiopatia hipertrófica (CMH) é uma forma de doença do músculo cardíaco de causa genética, caracterizada pela hipertrofia das paredes ventriculares. O diagnóstico requer detecção por métodos de imagem (Ecocardiograma ou Ressonância Magnética Cardíaca) de qualquer segmento da parede do ventrículo esquerdo com espessura > 15 mm, sem outra causa provável. A análise genética permite identificar mutações de genes codificantes de diferentes estruturas do sarcômero responsáveis pelo desenvolvimento da CMH em cerca de 60% dos casos, permitindo o rastreio de familiares e aconselhamento genético, como parte importante do manejo dos pacientes e familiares. Vários conceitos sobre a CMH foram recentemente revistos, incluindo sua prevalência de 1 em 250 indivíduos, não sendo, portanto, uma doença rara, mas subdiagnosticada. A vasta maioria dos pacientes é assintomática. Naqueles sintomáticos, a obstrução do trato de saída do ventrículo esquerdo (OTSVE) é o principal distúrbio responsável pelos sintomas, devendo-se investigar a sua presença em todos os casos. Naqueles em que o ecocardiograma em repouso ou com Manobra de Valsalva não detecta gradiente intraventricular significativo (> 30 mmHg), devem ser submetidos à ecocardiografia com esforço físico para detecção da OTSVE.   Pacientes com sintomas limitantes e grave OTSVE, refratários ao uso de betabloqueadores e verapamil, devem receber terapias de redução septal ou uso de novas drogas inibidoras da miosina cardíaca. Por fim, os pacientes adequadamente identificados com risco aumentado de morta súbita podem receber medida profilática com implante de cardiodesfibrilador implantável (CDI).

La miocardiopatía hipertrófica (MCH) es una forma de enfermedad cardíaca de origen genético, caracterizada por el engrosamiento de las paredes ventriculares. El diagnóstico requiere la detección mediante métodos de imagen (Ecocardiograma o Resonancia Magnética Cardíaca) que muestren algún segmento de la pared ventricular izquierda con un grosor > 15 mm, sin otra causa probable. El análisis genético permite identificar mutaciones en genes que codifican diferentes estructuras del sarcómero responsables del desarrollo de la MCH en aproximadamente el 60% de los casos, lo que permite el tamizaje de familiares y el asesoramiento genético, como parte importante del manejo de pacientes y familiares. Varios conceptos sobre la MCH han sido revisados recientemente, incluida su prevalencia de 1 entre 250 individuos, por lo tanto, no es una enfermedad rara, sino subdiagnosticada. La gran mayoría de los pacientes son asintomáticos. En los casos sintomáticos, la obstrucción del tracto de salida ventricular izquierdo (TSVI) es el trastorno principal responsable de los síntomas, y su presencia debe investigarse en todos los casos. En aquellos en los que el ecocardiograma en reposo o la maniobra de Valsalva no detecta un gradiente intraventricular significativo (> 30 mmHg), deben someterse a ecocardiografía de esfuerzo para detectar la obstrucción del TSVI. Los pacientes con síntomas limitantes y obstrucción grave del TSVI, refractarios al uso de betabloqueantes y verapamilo, deben recibir terapias de reducción septal o usar nuevos medicamentos inhibidores de la miosina cardíaca. Finalmente, los pacientes adecuadamente identificados con un riesgo aumentado de muerte súbita pueden recibir medidas profilácticas con el implante de un cardioversor-desfibrilador implantable (CDI).

Hypertrophic cardiomyopathy (HCM) is a form of genetically caused heart muscle disease, characterized by the thickening of the ventricular walls. Diagnosis requires detection through imaging methods (Echocardiogram or Cardiac Magnetic Resonance) showing any segment of the left ventricular wall with a thickness > 15 mm, without any other probable cause. Genetic analysis allows the identification of mutations in genes encoding different structures of the sarcomere responsible for the development of HCM in about 60% of cases, enabling screening of family members and genetic counseling, as an important part of patient and family management. Several concepts about HCM have recently been reviewed, including its prevalence of 1 in 250 individuals, hence not a rare but rather underdiagnosed disease. The vast majority of patients are asymptomatic. In symptomatic cases, obstruction of the left ventricular outflow tract (LVOT) is the primary disorder responsible for symptoms, and its presence should be investigated in all cases. In those where resting echocardiogram or Valsalva maneuver does not detect significant intraventricular gradient (> 30 mmHg), they should undergo stress echocardiography to detect LVOT obstruction. Patients with limiting symptoms and severe LVOT obstruction, refractory to beta-blockers and verapamil, should receive septal reduction therapies or use new drugs inhibiting cardiac myosin. Finally, appropriately identified patients at increased risk of sudden death may receive prophylactic measure with implantable cardioverter-defibrillator (ICD) implantation.

https://doi.org/10.1590/SciELOPreprints.8394

Noteworthy records of the ticks Ornithodoros rostratus and Amblyomma sculptum parasitizing Pteronura brasiliensis in the central-western region of Brazil, with pathogen investigation notes
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Barros-Battesti, Darci Moraes

; André, Marcos Rogério

; Hoppe, Estevam Guilherme Lux

; Seron, Gustavo

; Bassini-Silva, Ricardo

; Calchi, Ana Claúdia

; Andrade, Lívia Oliveira

; Perin, Patrícia Parreira

; Martins, Thiago Fernandes

; Castro-Santiago, Ana Carolina

; Leuchtenberger, Caroline

; Almeida, Samara

; Foerster, Nathalie

; Furtado, Mariana

; de Castro Jacinavicius, Fernando

Revista Brasileira de Parasitologia Veterinária

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2024, Volume 33 Nº 1 elocation e014523

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo Um macho de Pteronura brasiliensis (Carnivora: Mustelidae) foi encontrado morto às margens do Rio Negro, no Pantanal do estado de Mato Grosso do Sul, município de Aquidauana. Dois carrapatos encontrados aderidos à sua pele foram identificados, morfologicamente, como uma ninfa de segundo ínstar de Ornithodoros rostratus (Argasidae) e um macho de Amblyomma sculptum (Ixodidae). Para complementar a identificação morfológica, esses espécimes de carrapatos foram submetidos à extração de DNA e testados por meio de ensaios de PCR, para confirmar a identidade molecular dos espécimes. Além disso, os extraídos dos carrapatos foram testados e revelaram-se negativos nos ensaios de PCR para todos os patógenos testados. Também foram examinados 30 lotes, compostos por 174 indivíduos de O. rostratus, depositados na Coleção Acari do Instituto Butantan, e encontramos material de quatro estados brasileiros, incluindo-se um lote contendo 2 machos e 2 fêmeas de Aquidauana, estado de Mato Grosso do Sul (MS), coletado do solo. Este foi, portanto, o primeiro registro de O. rostratus parasitando P. brasiliensis e o primeiro registro de localidade (Aquidauana). Da mesma forma, A. sculptum é comumente encontrado no Pantanal e relatado aqui, pela segunda vez, parasitando a ariranha, hospedeiro pouco estudado em relação a ectoparasitas.

Abstract A male of Pteronura brasiliensis (Carnivora: Mustelidae) was found dead on the banks of the Rio Negro, in the Pantanal wetlands of Mato Grosso do Sul state, Aquidauana municipality. Two ticks found attached to its skin were morphologically identified as a second-instar nymph of Ornithodoros rostratus (Argasidae) and a male of Amblyomma sculptum (Ixodidae). In order to complement the morphological identification, these tick specimens were subjected to DNA extraction, and tested using PCR assays to confirm the molecular identity the specimens. Also, the tick DNA samples were tested and were negative in the PCR assays for all the pathogens tested. We also examined 30 batches, consisting of 174 individuals of O. rostratus deposited in the Acari Collection of the Butantan Institute, and we found material from four Brazilian states, including one batch containing 2 males and 2 females from Aquidauana, of Mato Grosso do Sul state, collected from the soil. This was therefore the first record of O. rostratus parasitizing P. brasiliensis and the first locality record (Aquidauana). Likewise, A. sculptum is commonly found in the Pantanal and is reported here for the second time parasitizing the giant otter, which is a host little studied regarding the ectoparasites.

https://doi.org/10.1590/s1984-29612024003

Mercury concentration in larvae of Eustrongylides sp. (Nematoda: Dioctophymatoidea) from fish of the Brazilian Amazon
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Lima-Corrêa, Lincoln

; Mota-Atayde, Hérlon

; Ferreira-Sarrazin, Sandra-Layse

; Bezerra-de-Oliveira, Ricardo

Revista de Biología Tropical

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Dez 2023, Volume 71 Nº 1 elocation e55913

Resumo: Es En | Texto: Es En | PDF: Es | PDF: En

Resumen Introducción: La contaminación química del hábitat acuático representa un gran peligro para organismos acuáticos, especialmente para peces. Los metales ingresan al ambiente acuático desde una variedad de fuentes, incluidos los ciclos biogeoquímicos naturales y fuentes antropogénicas, como efluentes industriales y residenciales, minería y fuentes atmosféricas. Objetivo: Describir las especies de Eustrongylides sp. y la interacción con sus peces hospederos como indicadores de contaminación por mercurio en la Amazonía brasileña, y la distribución en los órganos internos de las especies de peces Hoplias malabaricus y Pygocentrus nattereri recolectadas en cochas del Río Tapajós, en el municipio de Santarém, del estado de Pará. Métodos: El Hg total se analizó utilizando el Direct Hg Analyzer - DMA-80. Las concentraciones de Eustrongylides sp. se compararon con las encontrados en los tejidos/órganos de los hospederos H. malabaricus y P. nattereri. Las concentraciones en el sistema hospedero/parásito se compararon estadísticamente utilizando el análisis de componentes principales. Se calculó el factor de bioconcentración (BCF) para evaluar la capacidad de bioacumulación de metales en larvas de Eustrongylides sp., comparando la concentración en el parásito con la acumulada en la musculatura de los hospederos infectados. Resultados: Las concentraciones de Hg en todos los tejidos/órganos analizados fueron mayores en las larvas de la especie parasitaria Eustrongylides sp. en comparación con las encontradas en los tejidos/órganos de H. malabaricus y P. nattereri. Hubo una relación inversamente proporcional, mostrando que cuando las larvas de Eustrongylides sp. están presentes, la concentración en el parásito es mayor que en la musculatura de los peces hospederos H. malabaricus y P. nattereri. El BCF de Hg se encontró comparando Eustrongylides sp. larvas/ músculo H. malabaricus y se observó durante una inundación (BCF Hg = 15 364). Conclusiones: Los resultados confirman la mayor capacidad bioacumulativa de Eustrongylides sp. en comparación con su hospedero. Los datos indicaron la viabilidad de utilizar larvas de Eustrongylides sp. en programas de biomonitoreo. Cabe mencionar que las muestras de pescado para análisis de Hg deben estar libres de parásitos ya que su presencia puede alterar los resultados.

Abstract Introduction: Chemical pollution represents a great concern to aquatic organisms, especially fish. Metals enter the aquatic environment from a variety of sources, including natural biogeochemical cycles and anthropogenic sources such as industrial and residential effluents, mining and atmospheric sources. Objective: To describe the Eustrongylides sp. larvae and the interaction with their fish hosts as indicators of mercury (Hg) contamination in the Brazilian Amazon, and the distribution of Hg in the internal organs of fish species Hoplias malabaricus and Pygocentrus nattereri collected in oxbow lakes on the Tapajós River, in the municipality of Santarém, in the state of Pará. Methods: Total Hg was analyzed using the Direct Hg Analyzer - DMA-80. Concentrations of Hg in Eustrongylides sp. were compared with those found in the tissues/organs of the hosts H. malabaricus and P. nattereri. Hg concentrations in the host/parasite system were statistically compared using Principal Component Analysis. The bioconcentration factor (BCF) was calculated to assess the bioaccumulation capacity of metals in Eustrongylides sp. larvae, comparing the concentration of Hg in the parasite with that accumulated in the musculature of infected hosts. Results: Hg concentrations in all tissues/organs analyzed were higher in the parasitic species Eustrongylides sp. larvae when compared with those found in tissues/organs of H. malabaricus and P. nattereri. There was an inversely proportional relationship, showing that when Eustrongylides sp. larvae are present, the concentration in the parasite is higher than in the musculature of host fish H. malabaricus and P. nattereri. The BCF of Hg was found by comparing Eustrongylides sp. larvae/H. malabaricus muscle and was observed during a flood (BCF Hg = 15 364). Conclusions: The results confirm the greater bioaccumulative capacity of Eustrongylides sp. compared to its host. The data indicated the viability of using Eustrongylides sp. larvae in biomonitoring programs. It is worth mentioning that fish samples for Hg analysis must be free of parasites since their presence can alter the results.

https://doi.org/10.15517/rev.biol.trop..v71i1.55913

Inoculação com fungos micorrízicos promove desenvolvimento de Pseudobombax simplicifolium S. Robyns durante a fase de aclimatização
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Oliveira, João Ricardo Gonçalves de

; Melo, Natoniel Franklin de

; Yano-Melo, Adriana Mayumi

Hoehnea

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2023, Volume 50 elocation e442022

Resumo: En Pt | Texto: En Pt | PDF: En | PDF: Pt

ABSTRACT The aim of this work was to evaluate the efficiency of native and exotic isolates of arbuscular mycorrhizal fungi (AMF) in promoting the growth of micropropagated seedlings of Pseudobombax simplicifolium S. Robyns during the acclimatization phase. The experiment was conducted in the greenhouse in an entirely randomized design with three inoculation treatments; Entrophospora etunicata (autochthonous), Acaulospora longula (exotic) and a non-inoculated control group. Seedlings were acclimated in soil and vermiculite (2:1 v/v) in 10 repetitions for each treatment totaling 30 experimental plots. At the end of the experiment, mycorrhized P. simplicifolium seedlings presented better development than those not inoculated. Although the inoculum with native AMF of E. etunicata was more efficient in colonizing the plants, the increments in leaf area, fresh and dry biomass were similar to those provided by the exotic AMF species (A. longula). It is concluded that during the acclimatization phase, P. simplicifolium seedlings present great vegetative development when mycorrhized, regardless of the origin of the fungal isolates tested in this study.

RESUMO O objetivo deste trabalho foi avaliar a eficiência de isolados nativos e exóticos de fungos micorrízicos arbusculares (FMA) na promoção do crescimento de plântulas micropropagadas de Pseudobombax simplicifolium S. Robyns durante a fase de aclimatização. O experimento foi realizado em casa de vegetação em delineamento inteiramente casualizado em três tratamentos de inoculação; Entrophospora etunicata (autóctone), Acaulospora longula (exótico) e um grupo testemunha não inoculado. As plântulas foram aclimatizadas em solo e vermiculita (2:1 v/v) em 10 repetições para cada tratamento totalizando 30 parcelas experimentais. Ao final do experimento, mudas de P. simplicifolium micorrizadas apresentaram melhor desenvolvimento comparado às não inoculadas. Apesar do inóculo com FMA nativo de E. etunicata ter sido mais eficiente em colonizar as plantas, os incrementos na área foliar, biomassa fresca e seca foram similares aos proporcionados pela espécie exótica de FMA (A. longula). Conclui-se que durante a fase de aclimatização, mudas de P. simplicifolium têm o desenvolvimento vegetativo beneficiado pela micorrização, independente da origem dos isolados fúngicos testados nesse estudo.

https://doi.org/10.1590/2236-8906e442022

Interaction of Lead and Calcium with Biochar Produced from Cassava Waste: Perspectives for Agricultural and Environmental Application
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Silva, Ricardo R. da

; Oliveira, Luciana C. de

; Gabriel, Gabriele V. M.

; Soletti, João I.

; Bispo, Mozart D.

; Paulino, Sivaldo S.

; Meneghetti, Simoni M. P.

; Assis, Geovânia C. de

; Fernandes, Andrea P.

; Botero, Wander G.

Journal of the Brazilian Chemical Society

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Dez 2022, Volume 33 Nº 12 Páginas 1402 - 1413

Resumo: En | Texto: En | PDF: En

Biochar from slow pyrolysis under controlled conditions is favorable in the transformation of waste into materials that serve as soil conditioners, and/or environmental remediation. Thus, this work aimed to produce and characterize biochar from cassava waste under different temperature conditions and evaluate interactions with Ca2+ and Pb2+ for agricultural and environmental applications. To investigate the efficiency of the interaction of biochar with nutrients (Ca) and contaminants (Pb), the influence of pH and contact time were evaluated. There was an increase in pH, pHzpc (zero point charge), and condensed aromatic structures in BC, due to the increase in pyrolysis temperature. Also, biochar demonstrated a Pb2+ adsorbed amount of 2.03 to 2.37 mg g-1 and a Ca2+ release capacity of 0.655 to 0.765 mg g-1. In this way, biochar produced from residues of cassava waste can be a viable strategy to enhance agricultural production and reduce environmental contaminants.

https://doi.org/10.21577/0103-5053.20220076

Anxiety, depression, and quality of life in mothers of children with congenital Zika syndrome: Results of a 5-year follow-up study
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Oliveira, Sheila Jaqueline Gomes de

; Tavares, Carolina Santos Souza

; Santos, Victor Santana

; Santos Jr, Hudson P.

; Martins-Filho, Paulo Ricardo

Revista da Sociedade Brasileira de Medicina Tropical

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2022, Volume 55 elocation e0627-2021

Resumo: En | Texto: En | PDF: En

https://doi.org/10.1590/0037-8682-0627-2021

Tritrophic relations and spatial distribution of fruit flies (Diptera: Tephritidae) in the Cerrado and Caatinga regions in Piauí, Brazil
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Araújo, Edineia da Silva

; Silva, Luciana Barboza

; Jesus, Ricardo Fialho de

; Oliveira, Thayline Rodrigues de

; Lopes, José Wellington Batista

; Lopes, Gleidyane Novais

Revista Brasileira de Entomologia

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2022, Volume 66 Nº 2 elocation e20210117

Resumo: En | Texto: En | PDF: En

ABSTRACT Knowledge about the spatial distribution of fruit flies (Diptera: Tephritidae) and tritrophic interactions (fruit-fruit fly parasitoid) contributes to the monitoring and maintenance of the numerical density at a level lower than economic damage. The purpose of this study was to identify the spatial distribution and associations of fruit flies with their parasitoids and host plants in the municipality of Bom Jesus-PI. The flies were obtained from fruit collection from July 2018 to May 2019. A total of 1,711 individuals were obtained, represented by six species: Anastrepha obliqua (Macquart, 1835), An. fraterculus (Wiedemann, 1830), An. alveata Stone, 1942, An. sororcula Zucchi, 1979, An. zenildae Zucchi, 1979 and Ceratitis capitata (Wiedemann, 1824). Anastrepha obliqua was the species with the widest distribution throughout the ecotone area. Ceratitis capitata is distributed only in the urban perimeter. A tritrophic relationship occurred between four species of parasitoids, Asobara anastrephae (Muesebeck, 1958) or Opius sp. associated with An. obliqua in Spondias mombin or S. tuberosa fruits. Opius sp. has also been associated with An. alveata in Ximenia americana. Pachycrepoideus vindemiae was obtained from C. capitata in Malpighia emarginata, in addition to An. obliqua in Averrhoa carambola. Therefore, fruit flies are associated with native fruit trees (S. tuberosa, S. mombin, S. purpurea, P. acutangulum, Inga laurina, X. americana) and exotic fruits (M. emarginata, A. carambola, P. guajava). Ceratitis capitata was recorded for the first time in the state of Piauí infesting I. laurina (Sw.) Willd. This is the first record of the parasitoid genus Spalangia. in An. obliqua in Piauí and in the semiarid region of Brazil.

https://doi.org/10.1590/1806-9665-rbent-2021-0117

Could dysregulation of RASSF1 expression be a mechanism of tumorigenesis in CTVT?
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Fêo, Haline B.

; Flórez, Luis Mauricio M.

; Yamatogi, Ricardo S.

; Duzanski, Anderson P.

; Araújo Junior, João P.

; Oliveira, Rogerio A.

; Rocha, Noeme S.

Pesquisa Veterinária Brasileira

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2022, Volume 42 elocation e07082

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

RESUMO: O tumor venéreo transmissível canino (TVTC) é a linhagem de células somáticas mais antiga conhecida. É um câncer transmissível que se propaga naturalmente em cães e mutações genéticas já foram relatadas. O gene RASSF1 atua no reparo de danos ao DNA e presume-se que, quando suprimido ou com expressão gênica reduzida, o TVTC tende a progredir. A expressão do gene supressor de tumor, como RASSF1, foi quantificada em tecidos de dezessete animais e três culturas de células de tecidos tumorais. Em geral, o gene RASSF1 apresentou prevalência de subexpressão (65%) e ausência em 35% dos demais tecidos analisados. Células isoladas de culturas de tecidos tumorais também demonstraram 67% com expressão diminuída e 33% com expressão elevada, com diferença significativa entre os níveis de expressão gênica em amostras de tecido quando comparadas às culturas de células, com tecidos apresentando níveis mais baixos de expressão gênica em comparação com células. Anteriormente, relatamos que tanto o microambiente tumoral quanto o sistema imunológico do hospedeiro parecem influenciar a tumorigênese e o estágio do TVTC. Este é o primeiro artigo a demonstrar a expressão de RASSF1 no TVTC, possivelmente alterando sua tumorigênese e auxiliando no aumento da progressão tumoral.

ABSTRACT: Canine transmissible venereal tumor (CTVT) is the oldest known somatic cell lineage. It is a transmissible cancer that propagates naturally in dogs and reportedly contains gene mutations. RASSF1 participates in DNA damage repair, and its downregulation, results in tumor progression. Hence, RASSF1 is a tumor suppressor gene. Its expression was quantified in tumors from seventeen animals and three cell cultures derived from tumors. In general, RASSF1 was underexpressed in 65%, and absent in 35% of tumor samples. Cells from tumor tissue cultures showed decreased expression of RASSF1 in 67% and elevated expression in 33% of samples tested. The tumor tissues showed significantly lower levels of RASSF1 expression compared to cultured cells. Previously we reported that both the tumor microenvironment and the host immune system appear to influence the tumorigenesis and stage of CTVT. This is the first article to demonstrate the expression of RASSF1 in CTVT. Decreased RASSF1 possibly helps tumor progression.

https://doi.org/10.1590/1678-5150-pvb-7082

Hyperphagia and hyperleptinemia induced by low-protein, high-carbohydrate diet is reversed at a later stage of development in rats
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FROELICH, MENDALLI

; LEMES, SUELEM A.F.

; ELIAS, MAÍSA P.S.

; OLIVEIRA, ANA PAULA S.S

; LISBOA, PATRICIA C.

; SOUZA, JOSÉ RICARDO DE

; MOURA, EGBERTO G.

; ALMEIDA, FHELIPE J.S

; PEREIRA, MAYARA P.

; LATORRACA, MARCIA Q.

; KAWASHITA, NAIR H.

Anais da Academia Brasileira de Ciências

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2022, Volume 94 Nº 3 elocation e20210902

Resumo: En | Texto: En | PDF: En

Abstract This study investigated whether increased food intake after 15 days of low-protein, high-carbohydrate (LPHC) and its normalization in the later period of development change the content of key proteins related to leptin or adiponectin signaling in the hypothalamus. Male rats were divided into five groups: Control groups received a control diet (17% protein, 63% carbohydrate) for 15 (C15) or 45 (C45) days; LPHC groups received an LPHC diet (6% protein, 74% carbohydrate) for 15 (LPHC15) or 45 (LPHC45) days; and Reverse group (R): received LPHC diet for 15 days followed by control diet for another 30 days. The LPHC15 group showed increased adiposity index, leptin level, and adiponectin level, as well as decreased the leptin receptor (ObRb) and pro-opiomelanocortin (POMC) content in the hypothalamus compared with the C15 group. LPHC diet for 45 days or diet reversion (R group) rescued these alterations, except the adiponectin level in LPHC45 rats, which was higher. In summary, LPHC diet reduced hypothalamic leptin action by diminishing ObRb and POMC levels, leading to hyperphagia and adiposity body. Medium-term administration of LPHC diet or reverting to control diet restored the levels of these proteins, thereby improving body lipid mass rearrangement in adulthood.

https://doi.org/10.1590/0001-3765202220210902

10.

Effects of the use of synthetic astaxanthin in the feeding of Lophiosilurus alexandri, a neotropical siluriform fish
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COSTA, DANIEL P. DA

; SILVA, MÁRCIO JOSÉ S.

; GERALDI, RICARDO MARCELO

; LORENZINI, JOÃO PAULO

; MATTIOLI, CRISTIANO C.

; OLIVEIRA, AFONSO DE LIGUORI

; LUZ, RONALD K.

; MIRANDA-FILHO, KLEBER C.

Anais da Academia Brasileira de Ciências

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2022, Volume 94 Supl. 4 elocation e20210434

Resumo: En | Texto: En | PDF: En

Abstract Aiming to test the capacity of retention of carotenoids in tissues, Lophiosilurus alexandri juveniles were fed diets containing 0, 25, 50, 100, 200, and 400 mg/kg of synthetic astaxanthin for 62 days. The inclusion of astaxanthin did not result in significant differences in growth, weight gain, apparent feed conversion, and feed efficiency of the fish. Blood biochemistry and liver histology did not change with the different treatments. At the level of 100 mg/kg of inclusion, there were the highest levels of carotenoids in the blood, and muscle and the smallest difference between the muscle x integument ratio.

https://doi.org/10.1590/0001-3765202220210434

11.

Survey of nematodes associated with sugarcane in the state of Paraná, Brazil
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Martinha, Danielle Dutra

; Silva, Mayara Catherine Candido

; Maceda, Arlei

; Hahn, Marlon Henrique

; Calegario, Renata

; Ruaro, Lucimeris

; Oliveira, Ricardo Augusto de

; Duarte, Henrique da Silva Silveira

Arquivos do Instituto Biológico

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2022, Volume 89 elocation e00332021

Resumo: En | Texto: En | PDF: En

ABSTRACT Sugarcane-associated nematodes (Saccharum spp.) can reduce productivity up to 50%. Through the survey, it was possible to identify the main nematodes that occur in a certain region as a tool for designing the best management and control strategies. The aim of this study was to characterize the population of nematodes associated with sugarcane in the North Central, North Pioneiro and Northwest mesoregion of the state of Paraná, Brazil, quantify the nematode genera associated with the crop and identify the species of Pratylenchus and Meloidogyne. A total amount of 89 soil and root composite samples were collected in nine municipalities. Nematodes were extracted and counted in a Peters counting chamber under an optical light microscope. Morphological description followed identification keys. Pratylenchus spp. were identified by morphological characteristics; Meloidogyne spp. were identified by morphological characteristics and isoenzyme electrophoresis. Twelve genera of nematodes associated with sugarcane were identified: Pratylenchus, Meloidogyne, Helicotylenchus, Xiphinema, Mesocriconema, Trichodorus, Aphelenchus, Hoplolaimus, Tylenchus, Tylenchorhynchus, Ditylenchus, and Paratrichodorus. The genera Pratylenchus and Meloidogyne were found with the highest frequencies in the roots. Among the species of Pratylenchus, P. zeae and P. brachyurus were found, with P. zeae being the most frequent. Among the Meloidogyne species, only M. javanica was found. These results are essential to aid decision making in the management of phytonematodes, mainly in the development of new control strategies and in directing genetic breeding programs for development of sugarcane cultivars for the Paraná state.

https://doi.org/10.1590/1808-1657000332021

12.

COVID-19 in the Perioperative Period of Cardiovascular Surgery: the Brazilian Experience
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Gomes, Walter J.

; Rocco, Isadora

; Pimentel, Wallace S.

; Pinheiro, Aislan H. B.

; Souza, Paulo M. S.

; Costa, Luiz A. A.

; Teixeira, Marjory M. P.

; Ohashi, Leonardo P.

; Bublitz, Caroline

; Begot, Isis

; Moreira, Rita Simone L

; Hossne Jr, Nelson A.

; Vargas, Guilherme F.

; Branco, João Nelson R.

; Teles, Carlos A.

; Medeiros, Eduardo A. S.

; Sáfadi, Camila

; Rampinelli, Amândio

; Moratelli Neto, Leopoldo

; Rosado, Anderson Rosa

; Mesacasa, Franciele Kuhn

; Capriata, Ismael Escobar

; Segalote, Rodrigo Coelho

; Palmieri, Deborah Louize da Rocha Vianna

; Jardim, Amanda Cristina Mendes

; Vianna, Diego Sarty

; Coutinho, Joaquim Henrique de Souza Aguiar

; Jazbik, João Carlos

; Coutinho, Henrique Madureira da Rocha

; Kikuta, Gustavo

; Almeida, Zely Sant'Anna Marotti de

; Feguri, Gibran Roder

; Lima, Paulo Ruiz Lucio de

; Franco, Anna Carolina

; Borges, Danilo de Cerqueira

; Cruz, Felipe Ramos Honorato De La

; Croti, Ulisses Alexandre

; Borim, Bruna Cury

; Marchi, Carlos Henrique De

; Goraieb, Lilian

; Postigo, Karolyne Barroca Sanches

; Jucá, Fabiano Gonçalves

; Oliveira, Fátima Rosane de Almeida

; Souza, Rafael Bezerra de

; Zilli, Alexandre Cabral

; Mas, Raul Gaston Sanchez

; Bettiati Junior, Luiz Carlos

; Tranchesi, Ricardo

; Bertini Jr, Ayrton

; Franco, Leandro Vieira

; Fernandes, Priscila

; Oliveira, Fabiana

; Moraes Jr, Roberto

; Araújo, Thiago Cavalcanti Vila Nova de

; Braga, Otávio Penna

; Pedrosa Sobrinho, Antônio Cavalcanti

; Teixeira, Roberta Tavares Barreto

; Camboim, Irla Lavor Lucena

; Gomes, Eduardo Nascimento

; Reis, Pedro Horigushi

; Garcia, Luara Piovan

; Scorsioni, Nelson Henrique Goes

; Lago, Roberto

; Guizilini, Solange

Brazilian Journal of Cardiovascular Surgery

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Dez 2021, Volume 36 Nº 6 Páginas 725 - 735

Resumo: En | Texto: En | PDF: En

Abstract Introduction: We investigated the clinical course and outcomes of patients submitted to cardiovascular surgery in Brazil and who had developed symptoms/signs of coronavirus disease 2019 (COVID-19) in the perioperative period. Methods: A retrospective multicenter study including 104 patients who were allocated in three groups according to time of positive real time reverse transcriptase-polymerase chain reaction (RT-PCR) for the SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2): group 1, patients who underwent cardiac surgery > 10 days after positive RT-PCR; group 2, patients with a positive RT-PCR within 10 days before or after surgery; group 3, patients who presented positive RT-PCR > 10 days after surgery. The primary outcome was mortality and secondary outcomes were postoperative complications, intensive care unit (ICU) length of stay, and postoperative days of hospitalization. Results: The three groups were similar with respect to age, the European System of Cardiac Operative Risk Evaluation score, and comorbidities, except hypertension. Postoperative complications and death were significantly higher in groups 2 and 3 than in group 1, and no significant difference between groups 2 and 3 was seen. Group 2 showed a high prevalence of surgery performed as an urgent procedure. Although no significant differences were observed in ICU length of stay, total postoperative hospitalization time was significantly higher in group 3 than in groups 1 and 2. Conclusion: COVID-19 affecting the postoperative period of patients who underwent cardiovascular surgery is associated with a higher rate of morbidity and mortality. Delaying procedures in RT-PCR-positive patients may help reduce risks of perioperative complications and death.

https://doi.org/10.21470/1678-9741-2021-0960

13.

Salinity tolerance of tomato fertigated with different K+/Ca2+ proportions in protected environment
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Oliveira, Francisco de A. de

; Paiva, Francisco I. G.

; Medeiros, José F. de

; Melo, Mikhael R. de S.

; Oliveira, Mychelle K. T. de

; Silvas, Ricardo C. P. da

Revista Brasileira de Engenharia Agrícola e Ambiental

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Set 2021, Volume 25 Nº 9 Páginas 620 - 625

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

RESUMO Adequada nutrição potássica e cálcica é uma estratégia para reduzir o estresse salino sobre o tomateiro, pois reduz o desbalanço nutricional nas plantas. Com o objetivo de avaliar a produção do tomate utilizando irrigação com águas salinas, e fertigação com diferentes proporções potássio-cálcio, realizou-se um experimento em ambiente protegido em Mossoró, RN. O delineamento experimental utilizado foi em blocos casualizados, em esquema fatorial 5 x 4, com quatro repetições. Os tratamentos consistiram em combinações de quatro condutividade elétricas da solução nutritiva (ECns) (1,75; 3,25; 4,75 e 6,25 dS m-1) com cinco proporções iônicas (m/m) de potássio e cálcio (F1 = 2.43:1; F2 = 2.03:1; F3 = 1.62:1; F4 = 1.30:1 and F5 = 1.08:1). As variáveis resposta foram: número de frutos, peso médio de fruto, produção de frutos por planta e produção relativa. Foi possível identificar resultados de produção satisfatórios quando se usa uma maior salinidade. O uso de fertigação com baixas proporções K+/Ca2+ potencializa o efeito da salinidade sobre a cultura do tomateiro.

ABSTRACT Adequate potassium and calcium nutrition is a strategy to reduce salt stress on tomatoes, as it reduces nutritional imbalance in plants. With the objective of evaluating tomato production using irrigation with saline waters and fertigation with different potassium-calcium proportions, an experiment was carried out in a protected environment in Mossoró, RN, Brazil. The experimental design used was randomized blocks, in a 5 x 4 factorial scheme, with four replicates. The treatments consisted of the combination of four electrical conductivity of nutrient solution (ECns) (1.75; 3.25; 4.75; and 6.25 dS m-1) combined with five ionic proportions (m/m) of potassium and calcium (F1 = 2.43:1; F2 = 2.03:1; F3 = 1.62:1; F4 = 1.30:1 and F5 = 1.08:1). The response variables were: number of fruits, mean fruit weight, fruit production per plant and relative yield. It was possible to identify satisfactory results of production when higher salinity was used. Fertigation with low K+/Ca2+ proportions intensifies the effect of salinity on tomato crop.

https://doi.org/10.1590/1807-1929/agriambi.v25n9p620-625 149 downloads

14.

Selectivity index of indaziflam to sugarcane cv. IACSP95-5000 in two soil textures
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Ghirardello, Giovani Apolari

; Araújo, Lucas da Silva

; Baccin, Luisa Carolina

; Dotta, Mateus Augusto

; Souza, Raphael Oliveira

; Silva, André Felipe Moreira

; Silva, Gustavo Soares da

; Victoria Filho, Ricardo

Revista Facultad Nacional de Agronomía Medellín

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Mai 2021, Volume 74 Nº 2 Páginas 9531 - 9539

Resumo: Es En | Texto: Es En | PDF: Es | PDF: En

RESUMEN El índice de selectividad es una forma de evaluar el efecto selectivo de un herbicida para un cultivo determinado mediante la observación de sus efectos sobre el cultivo y las malezas. El objetivo fue obtener el índice de selectividad del herbicida indaziflam en el cultivo de caña de azúcar IACSP95-5000 en función de cinco malezas en dos texturas de suelo diferentes. El experimento se realizó en un invernadero en Piracicaba, São Paulo, Brasil. Los tratamientos consistieron en dosis de indaziflam (0; 12,5; 25; 50; 100; 200; 400; 800 y 1,600 g ai ha-1), aplicadas en pre-emergencia de la caña de azúcar y de las malezas Urochloa decumbens, Urochloa plantaginea, Digitaria horizontalis, Panicum maximum y Rottboellia cochinchinensis. En suelo franco arenoso, 25 g de ia ha-1 proporcionaron un control del 100% para todas las malezas. En suelo arcilloso, para D. horizontalis la reducción del 90% en la masa seca total (ED90) se obtuvo a 25 g ai ha-1, para R. cochinchinensis a 193 g ai ha-1, para U. plantaginea a 152 g ai ha-1, para P. maximum a 124 g ia ha-1, y para U. decumbens a 94 g ia ha-1. Indaziflam fue selectivo para IACSP95-5000 caña de azúcar en ambos suelos, con 10% de reducción de masa seca (ED10) a 137 g ia ha-1 para suelo con textura franco arenosa y 353 g ia ha-1 para suelo arcilloso. El índice de selectividad fue superior a 1 para todas las malezas en suelo arcilloso. No fue posible obtener el índice de selectividad para suelos franco arenosos debido a la susceptibilidad de las malezas al herbicida.

ABSTRACT Selectivity index is a way of assessing the discrimination of herbicide to a given crop by observing its effects on the crop and the weeds. The aim was to obtain the selectivity index of indaziflam herbicide to sugarcane cultivar IACSP95-5000 as a function of five weed species in two soils textures. The experiment was carried out in a greenhouse at Piracicaba, São Paulo, Brazil. The treatments consisted of indaziflam doses (0; 12.5; 25; 50; 100; 200; 400; 800 and 1,600 g of the active ingredient (ai) ha-1), applied in pre-emergence of the sugarcane and of the weeds Urochloa decumbens, Urochloa plantaginea, Digitaria horizontalis, Panicum maximum and Rottboellia cochinchinensis. In sandy loam soil, a 100% control for all weeds was provided at 25 g ai ha-1. In clay soil, for D. horizontalis the 90% reduction in total dry mass (ED90) was obtained at 25 g ai ha-1, for R. cochinchinensis at 193 g ai ha-1, for U. plantaginea at 152 g ai ha-1, for P. maximum at 124 g ai ha-1, and for U. decumbens at 94 g ai ha-1. Indaziflam was selective to IACSP95-5000 in both soils, with 10% of reduction in dry mass (ED10) at 137 g ai ha-1 for soil with a sandy loam texture and 353 g ai ha-1 for clay soil. The selectivity index was higher than 1 for all weeds in clay soil. It was not possible to obtain the selectivity index for sandy loam soil due to species susceptibility to the herbicide.

https://doi.org/10.15446/rfnam.v74n2.92423 72 downloads

15.

The Program for Biodiversity Research in Brazil: The role of regional networks for biodiversity knowledge, dissemination, and conservation
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ROSA, CLARISSA

; BACCARO, FABRICIO

; CRONEMBERGER, CECILIA

; HIPÓLITO, JULIANA

; BARROS, CLAUDIA FRANCA

; RODRIGUES, DOMINGOS DE JESUS

; NECKEL-OLIVEIRA, SELVINO

; OVERBECK, GERHARD E.

; DRECHSLER-SANTOS, ELISANDRO RICARDO

; ANJOS, MARCELO RODRIGUES DOS

; FERREGUETTI, ÁTILLA C.

; AKAMA, ALBERTO

; MARTINS, MARLÚCIA BONIFÁCIO

; TOMAS, WALFRIDO MORAES

; SANTOS, SANDRA APARECIDA

; FERREIRA, VANDA LÚCIA

; CUNHA, CATIA NUNES DA

; PENHA, JERRY

; PINHO, JOÃO BATISTA DE

; SALIS, SUZANA MARIA

; DORIA, CAROLINA RODRIGUES DA COSTA

; PILLAR, VALÉRIO D.

; PODGAISKI, LUCIANA R.

; MENIN, MARCELO

; BÍGIO, NARCÍSIO COSTA

; ARAGÓN, SUSAN

; MANZATTO, ANGELO GILBERTO

; VÉLEZ-MARTIN, EDUARDO

; SILVA, ANA CAROLINA BORGES LINS E

; IZZO, THIAGO JUNQUEIRA

; MORTATI, AMANDA FREDERICO

; GIACOMIN, LEANDRO LACERDA

; ALMEIDA, THAÍS ELIAS

; ANDRÉ, THIAGO

; SILVEIRA, MARIA AUREA PINHEIRO DE ALMEIDA

; SILVEIRA, ANTÔNIO LAFFAYETE PIRES DA

; MESSIAS, MARILUCE REZENDE

; MARQUES, MARCIA C.M.

; PADIAL, ANDRE ANDRIAN

; MARQUES, RENATO

; BITAR, YOUSZEF O.C.

; SILVEIRA, MARCOS

; MORATO, ELDER FERREIRA

; PAGOTTO, RUBIANI DE CÁSSIA

; STRUSSMANN, CHRISTINE

; MACHADO, RICARDO BOMFIM

; AGUIAR, LUDMILLA MOURA DE SOUZA

; FERNANDES, GERALDO WILSON

; OKI, YUMI

; NOVAIS, SAMUEL

; FERREIRA, GUILHERME BRAGA

; BARBOSA, FLÁVIA RODRIGUES

; OCHOA, ANA C.

; MANGIONE, ANTONIO M.

; GATICA, AILIN

; CARRIZO, MARÍA CELINA

; RETTA, LUCÍA MARTINEZ

; JOFRÉ, LAURA E.

; CASTILLO, LUCIANA L.

; NEME, ANDREA M.

; RUEDA, CARLA

; TOLEDO, JOSÉ JULIO DE

; GRELLE, CARLOS EDUARDO VIVEIROS

; VALE, MARIANA M.

; VIEIRA, MARCUS VINICIUS

; CERQUEIRA, RUI

; HIGASHIKAWA, EMÍLIO MANABU

; MENDONÇA, FERNANDO PEREIRA DE

; GUERREIRO, QUÊZIA LEANDRO DE MOURA

; BANHOS, AUREO

; HERO, JEAN-MARC

; KOBLITZ, RODRIGO

; COLLEVATTI, ROSANE GARCIA

; SILVEIRA, LUÍS FÁBIO

; VASCONCELOS, HERALDO L.

; VIEIRA, CECÍLIA RODRIGUES

; COLLI, GUARINO RINALDI

; CECHIN, SONIA ZANINI

; SANTOS, TIAGO GOMES DOS

; FONTANA, CARLA S.

; JARENKOW, JOÃO A.

; MALABARBA, LUIZ R.

; RUEDA, MARTA P.

; ARAUJO, PUBLIO A.

; PALOMO, LUCAS

; ITURRE, MARTA C.

; BERGALLO, HELENA GODOY

; MAGNUSSON, WILLIAM E.

Anais da Academia Brasileira de Ciências

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2021, Volume 93 Nº 2 elocation e20201604

Resumo: En | Texto: En | PDF: En

Abstract The Program for Biodiversity Research (PPBio) is an innovative program designed to integrate all biodiversity research stakeholders. Operating since 2004, it has installed long-term ecological research sites throughout Brazil and its logic has been applied in some other southern-hemisphere countries. The program supports all aspects of research necessary to understand biodiversity and the processes that affect it. There are presently 161 sampling sites (see some of them at Supplementary Appendix), most of which use a standardized methodology that allows comparisons across biomes and through time. To date, there are about 1200 publications associated with PPBio that cover topics ranging from natural history to genetics and species distributions. Most of the field data and metadata are available through PPBio web sites or DataONE. Metadata is available for researchers that intend to explore the different faces of Brazilian biodiversity spatio-temporal variation, as well as for managers intending to improve conservation strategies. The Program also fostered, directly and indirectly, local technical capacity building, and supported the training of hundreds of undergraduate and graduate students. The main challenge is maintaining the long-term funding necessary to understand biodiversity patterns and processes under pressure from global environmental changes.

https://doi.org/10.1590/0001-3765202120201604 1034 downloads

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subject	assunto (palavras do título, resumo e palavras-chave)
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ta	título abreviado da revista (ex. Cad. Saúde Pública)
journal_title	título completo da revista (ex. Cadernos de Saúde Pública)
la	código do idioma da publicação (ex. pt - Português, es - Espanhol)
type	tipo do documento
pid	identificador da publicação
publication_year	ano de publicação do artigo
sponsor	financiador
aff_country	código do país de afiliação do autor
aff_institution	instituição de afiliação do autor
volume	volume do artigo
issue	número do artigo
elocation	elocation
doi	número DOI
issn	ISSN da revista
in	código da coleção SciELO (ex. scl - Brasil, col - Colômbia)
use_license	código da licença de uso do artigo

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