434 research outputs found

    Soils of Tropical Dry Forest and with Different Crops Presenting Ascospores of Monosporascus cannonballus

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    The vine decline caused by Monosporascus cannonballus is a limiting factor in different crops in several countries. The objective of this study was to quantify the M. cannonballus ascospores in soils covered with tropical dry forest and areas cultivated with pineapple, cotton, coconut, corn, mango, melon, papaya, sorghum and watermelon. Five areas were sampled in tropical dry forest and every crop. The M. cannonballus ascospores were extracted using the flotation method of sucrose. Ascospores of M. cannonballus were detected in all soil samples from Rio Grande do Norte and Ceará states, including tropical dry forest. There were significant differences among the ascospores densities of M. cannonballus, which varied from 0.55 to 2.21 ascospores g-1 soil. The lower densities were found in areas with cotton, coconut, mango, pineapple, and melon within the first and fifth years of cultivation, in addition to uncultivated areas of tropical dry forest. The highest ascospores density was found in papaya areas. Up to date, there is no study to prove that this crop is considered host of this phytopathogen. Cultivated areas with cucurbitaceous with more years of cultivation presented higher densities of M. cannonballus ascospores in soils from Brazilian semiarid. However, there is no direct relationship between M. cannonballus population density in the soil and the susceptibility of the host being cultivated in the soil at the time of sampling

    Thrombosed great saphenous vein aneurysm accompanied by venous thrombosis

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    Superficial venous aneurysms of the lower extremities are considered rare and their clinical significance is poorly defined. The purpose of this article is to report a case of a 72- year-old woman with a thrombosed great saphenous vein aneurysm along with deep venous thrombosis and review its clinical presentation, diagnosis and treatment

    Naloxone Prolongs Abdominal Constriction Writhing-Like Behavior in a Zebrafish-Based Pain Model

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    The ability to detect noxious stimuli is essential to survival. However, pathological pain is maladaptive and severely debilitating. Endogenous and exogenous opioids modulate pain responses via opioid receptors, reducing pain sensibility. Due to the high genetic and physiological similarities to rodents and humans, the zebrafish is a valuable tool to assess pain responses and the underlying mechanisms involved in nociception. Although morphine attenuates pain-like responses of zebrafish, there are no data showing if the antagonism of opioid receptors prolongs pain duration in the absence of an exogenous opioid. Here, we investigated whether a common opioid antagonist naloxone affects the abdominal constriction writhing-like response, recently characterized as a zebrafish-based pain behavior. Animals were injected intraperitoneally with acetic acid (5.0%), naloxone (1.25 mg/kg; 2.5 mg/kg; 5.0 mg/kg) or acetic acid with naloxone to investigate the changes in their body curvature for 1 h. Acetic acid elicited a robust pain-like response in zebrafish, as assessed by aberrant abdominal body curvature, while no effects were observed following PBS injection. Although naloxone alone did not alter the frequency and duration of this behavior, it dose-dependently prolonged acetic acid-induced abdominal curvature response. Besides reinforcing the use of the abdominal writhing-like phenotype as a behavioral endpoint to measure acute pain responses in zebrafish models, our novel data suggest a putative role of endogenous opioids in modulating the recovery from pain stimulation in zebrafish. © 2019 Elsevier B.V.We recognize the financial support and fellowships from Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul (FAPERGS), and Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) . F.V.C. was recipient of CAPES fellowship. J.C. and F.V.S. receive the CNPq fellowship. D.B.R. is a recipient of CNPq research productivity grant ( 305051/2018-0 ) and his work is also supported by the PROEX/CAPES (process number 23038.005848/2018-31) and PRONEM/FAPERGS (process number 16/2551-0000248-7) fellowship grants. A.V.K. is the Chair of the International Zebrafish Neuroscience Research Consortium (ZNRC). His research is supported by the Russian Science Foundation (RSF) grant 19-15-00053. All authors contributed to the preparation of the manuscript and approved its final version. The funders had no influence on the study design, collection, analysis, and interpretation of data, as well as on writing and submission of this manuscript

    IDH1 mutations in a Brazilian series of Glioblastoma

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    Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Albert Einstein Jewish HospitalUniversidade de São Paulo Faculdade de Medicina Department of NeurologyUniversidade de São Paulo Faculdade de Medicina Department of PathologyCancer Institute of São PauloFundação Pio XII Barretos Cancer HospitalFederal University of São Paulo School of Medicine Department of NeurologyFederal University of São Paulo School of Medicine Department of PathologyNove de Julho HospitalAlbert Einstein Jewish HospitalUNIFESP, EPM, Department of NeurologyUNIFESP, EPM, Department of PathologyFAPESP: 04/12133-6SciEL

    Exploring CNS Effects of American Traditional Medicines using Zebrafish Models

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    Although American traditional medicine (ATM) has been practiced for millennia, its complex multi-target mechanisms of therapeutic action remain poorly understood. Animal models are widely used to elucidate the therapeutic effects of various ATMs, including their modulation of brain and behavior. Complementing rodent models, the zebrafish (Danio rerio) is a promising novel organism in translational neuroscience and neuropharmacology research. Here, we emphasize the growing value of zebrafish for testing neurotropic effects of ATMs and outline future directions of research in this field. We also demonstrate the developing utility of zebrafish as complementary models for probing CNS mechanisms of ATM action and their potential to treat brain disorders. © 2022 Bentham Science Publishers.Applied Genetics MIPT, (075-15-2021-684)International Zebrafish Neurosci-ence Research ConsortiumSirius UniversitySouthwest University Zebrafish Platform Construction Funds (Chongqing, ChinaZNRCConselho Nacional de Desenvolvimento Científico e Tecnológico, CNPq, (305051/2018-0)Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul, FAPERGS, (19/2551-0001-669-7, 19/2551-0001764-2)Russian Science Foundation, RSF, (20-65-46006)The study is supported by the Southwest University Zebrafish Platform Construction Funds (Chongqing, China). AVK is the Chair of the International Zebrafish Neurosci-ence Research Consortium (ZNRC) that coordinated this collaborative project. DBR receives the CNPq research productivity grant (process 305051/2018-0) and the FAPERGS “Gaucho” Researcher Program – PQG fellowship grant (process 19/2551-0001764-2). ACVVG is supported by the FAPERGS research fellowships 19/2551-0001-669-7. The study is partly supported by Sirius University (Sochi, Russia). Research collaboration here is supported by the Russian Science Foundation (RSF) grant 20-65-46006 to Prof. T.G. Amstislavskaya. The funders had no role in the design, analyses, and interpretation of the submitted study or the decision to publish. The study used the facilities and equipment of the Resource Fund of Applied Genetics MIPT (support grant 075-15-2021-684)
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