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A PCR and RFLP-based molecular diagnostic algorithm for visceral leishmaniasis

Asian Pacific Journal of Tropical Medicine 2020年第2期13卷 62-70页

作者： natalia souza de godoy Manoel Sebastiao da Costa Lima-Junior Jose Angelo Lauletta Lindoso Vera Lucia Pereira-Chioccola Thelma Suely Okay Lucia Maria Almeida Braz Laboratorio de Parasitologia Médica Departamento de Moléstias Infecciosas e Parasitárias do Hospital das Clinicas HCFMUSPFaculdade de MedicinaUniversidade de Sao PauloSao PauloBrazil Laboratorio de Imunopatologia e Biologia Molecular-Instituto Aggeu Magalhaes/IAM-FIOCRUZ RecifeBrazil Laboratorio de Soroepidemiologia e Imunobiologia-FMUSP Sao PauloBrazil Laboratorio de Biologia Molecular de Parasitas e Fungos-Instituto Adolfo Lutz Sao PauloBrazil Laboratorio de Parasitologia-Instituto de Medicina Tropical de Sao Paulo-USP Sao PauloBrazil

Objective:To determine an algorithm for molecular diagnosis of visceral leishmaniasis(VL)by kinetoplast DNA(kDNA)(RV1/RV2)and internal transcriber spacer(ITS1)(LITSR/L5.8 S)polymerase chain reaction(PCR),complemented by ITS 1 PCR restriction fragment length polymorphism(RFLP),using peripheral blood or bone marrow aspirate from patients with suspected ***:Biological samples were submitted to the gold standard for the diagnosis of VL and molecular diagnosis represented by ITS 1 PCR,kDNA PCR,and ITS 1 PCR *** samples were obtained from seven groups:groupⅠ,82 samples from patients with confirmed VL;groupⅡ,16 samples from patients under treatment for VL;groupⅢ,14 samples from dogs with canine visceral leishmaniasis(CVL);groupⅣ,a pool of six experimentally infected sandflies(Lutzomya longipalpis);group V,18 samples from patients with confirmed tegumentary leishmaniasis(TL)and groupsⅥandⅦwere from control groups without ***:The following gold standard and molecular examination results were obtained for each of the seven groups:groupⅠ:parasitologic and immunochromatographic tests showed a sensitivity of 76.3%(61 of 80)and 68.8%(55 of 80),respectively,and a sensitivity of 97.6%(80 of 82)and 92.7%(76 of 82)by ITS1 and kDNA PCR,*** ITS1 PCR RFLP(HaeⅢ)analysis of the 80 positive samples,52.5%(42 of 80)generated three fragments of 180,70,and 50 bp,corresponding to the pattern of Leishmania infantum infantum;groupⅡ:negative for the parasitologic methods and positive for IrK39(100%,16 of 16),presented 12.5%(2 of 16)of positivity by ITS 1 PCR and 25.0%(4 of 16)by kDNA PCR;groupⅢ:positive in the parasitologic and serologic tests(100%,14 of 14),presented 85.7%(12 of 14)of positivity by ITS1 PCR and kDNA ***1 PCR RFLP showed that 83.3%(10 of 12)of the canine samples contained parasites with profiles similar to ***;groupⅣpresented amplifications by ITS1 PCR and kDNA ***1 PCR products were analyzed by RFLP,generating a profile similar to

关键词： Leishmania infantum Molecular diagnosis Visceral leishmaniasis PCR RFLP

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decomposition and stabilization of organic matter in an old-growth tropical riparian forest:effects of soil properties and vegetation structure

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Forest Ecosystems 2021年第1期8卷 173-181页

作者： Pedro Henrique de godoy Fernandes Andréa Lúcia Teixeira de souza Marcel Okamoto Tanaka Renata Sebastiani Graduate Program in Environmental Sciences Federal University of São CarlosSão CarlosSPBrazil department of Environmental Sciences(DCAm) Federal University of São CarlosSão CarlosSPBrazil department of Nature Mathematicsand Education SciencesFederal University of São CarlosSão CarlosSPBrazil

Background:Nutrient cycling in tropical forests has a large importance for primary productivity,and decomposition of litterfall is a major process influencing nutrient balance in forest *** large-scale factors strongly influence decomposition patterns,small-scale factors can have major influences,especially in old-growth forests that have high structural complexity and strong plant-soil *** we evaluated the effects of forest structure and soil properties on decomposition rates and stabilization of soil organic matter using the Tea Bag Index(TBI)in an old-growth riparian forest in southeastern *** data sets were described separately using Principal Components Analysis(PCA).The main axes for each analysis,together with soil physical properties(clay content and soil moisture),were used to construct structural equations models that evaluated the different parameters of the TBI,decomposition rates and stabilization *** best model was selected using Akaike’s ***:Forest structure and soil physical and chemical properties presented large variation among plots within the studied *** content was strongly correlated with soil moisture and the first PCA axis of soil chemical properties,and model selection indicated that clay content was a better predictor than this *** rates presented a large variation among tea bags(0.009 and 0.098 g·g^(−1)·d−1)and were positively related with forest structure,as characterized by higher basal area,tree density and larger *** stabilization factor varied between 0.211–0.426 and was related to forest stratification and soil clay ***:The old-growth forest studied presented high heterogeneity in both forest structure and soil properties at small spatial scales,that influenced decomposition processes and probably contributed to small-scale variation in nutrient *** rates were only influenced by forest structure,whereas the stabilizat

关键词： Tea bag index Forest structure Carbon fixation Nutrient cycling

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Relationship between Physical and Chemical Soil Attributes and Plant Species Diversity in Tropical Mountain Ecosystems from Brazil

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Journal of Mountain Science 2014年第4期11卷 875-883页

作者： Ferna de CARVALHO Edward Luis godoy Francy J. G. LISBOA Fatima Maria de souza MOREIRA Francisco Adriano de souza Ricardo Luis Louro BERBARA G Wilson FERNES Laboratory of Evolutionary Ecology and Biodiversity Department of Geral Biology Institute of Biology Sciences Federal University of Minas Gerais Belo Horizonte MG 30161-901 P.O. Box 486 Brazil department of Biology Microbiology and Biological Processes Department of Soil Science Federal University of LavrasLavras Minas Gerais 37200-000 P.O.Box 3037 Brazil department of Biological Sciences Ferderal University of S?o Jo?o Del Rei S?o Jo?o del-Rei Minas Gerais 36307-352Brazil Laboratory of Soil Biology Department of Soil Science Federal Rural University of Rio de Janeiro Seropédica Rio de Janeiro 23890-000 Brazil Embrapa Maize and Sorghum Center for Applied Biology Rod. MG 424 KM 45 Caixa Postal Sete Lagoas Minas Gerais 35701-970 P.O. Box 285 Brazil

Although the high diversity of plant species in the rupestrian fields has been primarily attributed to the existence of a set of distinct habitats, few studies support this assertion. The present study aimed to further investigate the relationship between physical and chemical attributes of soils with the diversity of plant species in this unique ecosystem. The rupestrian field is a unique vegetation formation that covers some of the southeastern Brazilian mountains in the transition of the Atlantic rain forest and the Cerrado(savanna). Different habitats occur according to soil characteristics(e.g., presence of rocks, sand, fertility, hydrology, etc.). These attributes ultimately influence the vegetation that is highly adapted to the harsh edaphic and climatic mountain conditions. Five distinct habitats were studied by us: rocky outcrops, peat bogs, sandy bogs, quartz gravel fields, and "cerrado"(savanna). A floristic survey indicated that four families are found at greater frequency: Poaceae, Asteraceae, Cyperaceae, and Leguminosae. The greatest diversity of plant species was found in the rocky outcrops habitat, followed by cerrado, peat bog, quartz gravel grassland, and sandy bogs, respectively. The main difference in the floristic composition among these habitats was related to the dominant species. Trachypogon spicatus(Poaceae) was the most dominant species in the rocky outcrops, Axonopus siccus(Poaceae) in the peat bogs, Lagenocarpus rigidus(Cyperaceae) in the sandy bogs, Schizachyrium tenerum(Poaceae) in the cerrado, while Vellozia sp. 8(Velloziaceae) dominated the vegetation in the quartz gravel grassland. This study demonstrated that physical and chemical soil properties strongly related the diversity of plant species occurring in the different habitats of rupestrian fields.

关键词： Floristic diversity Plant-soilrelationships Espinhaqo Range Biodiversity Mountain ecology Plant habitat

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Integrating species and successional classes for wood production in a mixed forest restoration system in a neotropical region

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Journal of Forestry Research 2021年第6期32卷 2313-2321页

作者： Ananias Francisco Dias Junior Ana Lucia Martins Sodero Pincelli Ana Paula Camara da Silva Alison Moreira da Silva natalia Dias de souza Mario Tommasiello Filho Jose Otavio Brito Wood and Forestry Science department Federal University of EspIrito Santo(UFES)Av.Governador Lindemberg316JerOnimo Monteiro CityES 29550-000Brazil São Paulo State School of Technology(FATEC/SP) Av.DiacOno Jair de Oliveira651PiracicabaSP 13414-141Brazil Forest Products department Federal Rural University of Rio de Janeiro(UFRRJ)BR 465km 07SeropEdicaRJ 29890-000Brazil University of SAo Paulo “Luiz de Queiroz”College of Agriculture(USP/ESALQ)Av.PAdua Dias11PiracicabaSP 13418-900Brazil

As forests in neotropical regions,particularly in developing countries,are devastated,interventions to restore biodiversity and its ecological functions are *** producers have thus been encouraged to grow trees for wood production as an economic *** objective of this study was to quantify the increment of wood density of four forest species from different successional classes of a mixed system of restoration in a neotropical forest in *** discs were sampled at breast height and analyzed radially by X-ray densitometry to obtain apparent density and basic *** trees each of a species from the pioneer,early and late secondary successional stages and of the dominant species in the climax *** radial profiles indicated increasing density from the pith to bark of trunks,except for some variations due to wood defects and *** density was 0.576 g cm^(-3),0.655 g cm^(-3),0.706 g cm^(-3)and 0.775 g cm^(-3),respectively,for Peltophorum dubium,Schinus terebinthifolius,Cariniana estrellensis and Hymenaea *** profiles indicated higher amplitudes in the apparent densities for slow-growing species.X-ray densitometry generated parameters such as minimum,average and maximum densities,and radial density *** parameters are important for understanding the ecological functional role of successional classes of the Atlantic Forest from the Neotropical region.

关键词： X-ray densitometry Timber species of neotropical forest Successional classes of forest species Maintenance of forest restoration

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In vitro induced pluripotency from urine-derived cells in porcine

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World Journal of Stem Cells 2022年第3期14卷 231-244页

作者： Kaiana Recchia Lucas Simões Machado Ramon Cesar Botigelli Naira Caroline godoy Pieri Gabriela Barbosa Raquel Vasconcelos Guimarães de Castro Mariana Groke Marques Laís Vicari de Figueiredo Pessôa Paulo Fantinato Neto Flávio Vieira Meirelles Aline Fernanda de souza Simone Maria Massami Kitamura Martins Fabiana Fernandes Bressan department of Surgery Faculty of Veterinary Medicine and Animal SciencesUniversity of São PauloPirassununga 13635-000São PauloBrazil department of Pharmacology and Biotechnology Institute of BioscienceSão Paulo State UniversityBotucatu 18618-689São PauloBrazil department of Veterinary Medicine Faculty of Animal Sciences and Food EngineeringUniversity of São PauloPirassununga 13635-000São PauloBrazil Embrapa Suínos e Aves Empresa Brasileira de Pesquisa AgropecuáriaConcordia 89715-899Santa CatarinaBrazil department of Animal Sciences Faculty of Animal Sciences and Food EngineeringUniversity of São PauloPirassununga 13635-000São PauloBrazil

BACKGROUND The generation of induced pluripotent stem cells(iPSC)has been a game-changer in translational and regenerative medicine;however,their large-scale applicability is still hampered by the scarcity of accessible,safe,and reproducible *** porcine model is a large biomedical model that enables translational applications,including gene editing,long term in vivo and offspring analysis;therefore,suitable for both medicine and animal *** To reprogramme in vitro into pluripotency,and herein urine-derived cells(UDCs)were isolated from porcine *** The UDCs were reprogrammed in vitro using human or murine octamer-binding transcription factor 4(OCT4),SRY-box2(SOX2),Kruppel-like factor 4(KLF4),and C-MYC,and cultured with basic fibroblast growth factor(bFGF)*** characterize the putative porcine iPSCs three clonal lineages were submitted to immunocytochemistry for alkaline phosphatase(AP),OCT4,SOX2,NANOG,TRA181 and SSEA 1 *** transcripts related to the pluripotency(OCT4,SOX2 and NANOG)were analyzed via reverse transcription quantitative realtime polymerase chain reaction in different time points during the culture,and all three lineages formed embryoid bodies(EBs)when cultured in suspension without bFGF *** The UDCs were isolated from swine urine samples and when at passage 2 submitted to in vitro *** of putative iPSCs were obtained only from UDCs transduced with the murine factors(mOSKM),but not from human factors(hOSKM).Three clonal lineages were isolated and further cultured for at least 28 passages,all the lineages were positive for AP detection,the OCT4,SOX2,NANOG markers,albeit the immunocytochemical analysis also revealed heterogeneous phenotypic profiles among lineages and passages for NANOG and SSEA1,similar results were observed in the abundance of the endogenous transcripts related to pluripotent *** the clonal lineages when cultured in suspension without

关键词： Induced pluripotent stem cells Noninvasive Pluripotency Reprogramming Urine Porcine

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Efficacy of Photogem（Hematoporphyrin derivative） as a Photoactivatable Larvicide against Aedes aegypti （Diptera： Culicidae） Larvae

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Journal of Life Sciences 2017年第2期11卷 74-81页

作者： Larissa Marila de souza natalia Mayumi Inada Sebastiao Pratavieira Juliano Jose Corbi Cristina Kurachi Vanderlei Salvador Bagnato Federal University of S6o Carlos PPG Biotec S6o Carlos 13565-905 Sao Paulo Brazil Sao Carlos Institute of Physics University of Sao Paulo Sao Carlos 13560-970 Sao Paulo Brazil Sao Carlos School of Engineering University of Sao Paulo Sao Carlos 13560-970 Sao Paulo Brazil

dengue vector is responsible for millions of deaths every year and has caused disastrous impacts on health systems. The continuous use of chemical insecticides, such as carbamates, pyrethroids and organophosphates generates resistant populations of the mosquito, therefore, new control methods must be investigated. The joint action of the population and guidelines for preventing the reproduction of the mosquito associated with the use of photoactivatable insecticides can be the alternative for the control of epidemiological outbreaks in affected regions. In this study, the photo-larvicidal activity of Photogem^（PG）, a derivative of hematoporphyrin, was investigated against 2nd-early 3rd instar of Aedes aegypti larvae （Diptera： Culicidae） under different lighting conditions （artificial lighting system and sunlight）. The dynamics of PG accumulation was characterized by CLSM （confocal laser scanning microscopy） and total time PG eliminationin solution was investigated by ultraviolet-visible spectrophotometry. The maximum photo-activity of PG was observed in 0.5 h under sunlight exposure which achieved 100% larval mortality. Fluorescence images showed a uniform distribution of PG along the digestive tract. PG remained stable in the sunlight for 48 h and in an artificial lighting system for longer periods, therefore, it can be used for the control ofAedes aegypti larvae as a new alternative to chemical insecticides. The method is considered environmentally friendly due to its rapid degradation in the presence of light. Further studies are required, so that the potential of the technique can be explored in real breeding places.

关键词： Photoactivatable larvicide PG hematoporphyrin derivative Aedes aegypti natural lighting artificial lighting.

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Disentangling spatial,environmental and historical effects on tropical forest tree species turnover

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Journal of Plant Ecology 2021年第4期14卷 717-729页

作者： Alisson Borges Miranda Santos Vinicius Andrade Maia Cleber Rodrigo de souza Nathalle Cristine Alencar Fagundes Fernanda Moreira Gianasi Aurelio de Jesus Rodrigues Pais natalia de Aguiar-Campos Gabriela Gomes Pires Diego Teixeira Girardelli Jean Daniel Morel Mariana Caroline Moreira Morelli Felipe de Carvalho Araujo Rubens Manoel dos Santos department of Forestry Sciences Federal University of LavrasUniversity CampusLavrasBrazil Biological Sciences University of the State of Minas GeraisItuiutaba UnitItuiutabaBrazil department of Biology Federal University of LavrasUniversity CampusLavrasBrazil Faculty of Environmental Engineering and Natural Resources Zambeze UniversityChimoioMozambique

Aims We aimed at disentangling the effects of spatial distance,current and past environmental dissimilarity,and their combinations on tree community taxonomic and phylogenetic turnover by addressing the following questions:(i)Is tree community taxonomic and phylogenetic turnover related to the indirect effects of spatial distance via environmental dissimilarity?(ii)Does tree community taxonomic and phylogenetic turnover respond to paleoclimate(Last Glacial Maximum and Mid-Holocene)?Methods The study was carried out in 14 Atlantic rainforest sites in Brazil(20.4 ha sampled)containing 615 tree species from 83 plant *** obtained plot-level geographic coordinates and soil variables and site-level bioclimatic variables in the current,Mid-Holocene and Last Glacial *** used structural equation models with a distance-based approach to(i)test the direct effects of spatial distance and environmental dissimilarity and(ii)test the indirect effects of spatial distance via environmental dissimilarity on taxonomic(Bray–Curtis distance)and phylogenetic turnover(Comdist and Comdistnt distances).Important Findings Our results suggest a weak indirect effect of spatial distance via environmental dissimilarity on taxonomic and phylogenetic *** community turnover was driven by the direct effects of neutral,niche-based and historical ***,we inferred that the paleoclimate(historical processes)promoted the selection of the clades that gave rise to the current flora,while spatial distances(neutral processes)limited the dispersal range of species from the regional pool and environmental conditions(niche-based processes)locally selected the taxa that are able to persist.

关键词： assembly processes phylogenetic communities environmental filtering neutral communities phylogenetic turnover ecological niche paleoclimate effects

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Intestinal Microbiota, Obesity and Insulin Resistance—What Are the Relationships?

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Health 2018年第4期10卷 365-373页

作者： Lígia Maria Cordeiro Misurini Nicole do Prado Olbrzymek do Prado Olbrzymek Cicera Aparecida Mendes Letícia godoy Dias Sanderson Renata Florenzano Flores Luiz Henrique Corrêa Portari Portari Luciana Corrêa de souza Rodrigues Diana Aristotelis Rocha de Sá Larissa Bianca Paiva Cunha de Sá Alberto Krayyem Arbex Endocrinology Division IPEMED Medical School Sao Paulo Brazil Diabetology department Malteser Krankenhaus St. Franziskus Hospital Flensburg Germany Harvard T. H. Chan School of Public Health Boston MA USA

Obesity is a public health problem and its prevalence increases every year, resulting from a complex interaction between genetic, metabolic and environmental factors, as well as cultural influences. The Intestinal Microbiota is composed of trillions of microorganisms by forming a symbiotic relationship with the host and helping the absorption of various nutrients, increasing the extraction of components of the diet, the lipogenesis and intestinal permeability. Studies show that there is difference between the composition of the intestinal microbiota of an obese person and a healthy one. The purpose of this article is to review the literature on the relationship between the Intestinal Microbiota, Obesity and Insulin Resistance and also illustrate some studies on the subject.

关键词： Obesity Intestinal Microbiota Insulin Resistance

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Subcutaneous Model for the Study of dengue Virus Infection in Immune Competent Mice

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Journal of Biosciences and Medicines 2018年第5期6卷 97-110页

作者： Beatriz Senra Santos natalia Lima Pessoa natalia Lucinda Gustavo Cardoso de Oliveira Thais souza Silva Ketyllen Reis Andrade Ketyllen Reis Andrade Bruno Galv&atilde o Filho Marcele Neves Rocha Alexandre Vieira Machado Pedro Augusto Alves É rica Alessandra Rocha Alves Erna Geessien Kroon Marco Antô nio Campos Instituto René Rachou Funda&amp amp ccedil & amp atilde o Oswaldo Cruz Fiocruz Belo Horizonte Brazil departamento de Microbiologia Universidade Federal de Minas Gerais Belo Horizonte Brazil Empresa Brasileira de Pesquisa Agropecuá ria Laborat&amp amp oacute rio de Virologia Brasilia Brazil

Various mouse models to study dengue have been described by different authors, some of them using immunodeficient or some using humanized mice. Our group reported previously a deadly murine model, which used the intracranial inoculum of highly virulent dengue virus (deNV) in immune competent mouse. Here we present a model of immune competent mouse (C57BL/6), infected subcutaneously by the same highly virulent deNV (deNV3 genotype I). In this immunocompetent systemic mice model, the cytokine levels and hematological parameters such as total and differential leukocyte and platelets counts, together with weight loss, were considered important monitoring parameters, allowing a better understanding of the systemic human disease. Mice were inoculated subcutaneously and evaluated by the percentage weight variation as well as the clinical signs. Hematological parameters and cytokines levels were measured and viral titration in brain tissue or serum neutralization was performed to confirm mice infection. The subcutaneously deNV inoculated mice showed weight loss after infection, but they did not show any other clinical signs. The leukocytes and platelets decreased after subcutaneous inoculation. The cytokines TNF alpha and IFN gamma increased after infection in mice. The subcutaneous model provided scope for improved understanding of the dengue pathogenesis, as well as possible mechanism for protection to subsequent mouse infected by intracranial route in mice. This model could be used to study the vertebrate immune response and evaluation of drugs or vaccine against dengue virus.

关键词： Subcutaneous Murine Model dengue Disease Immune Competent Mouse Cytokines Innate Immune Response

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巴西股市“跌跌不休” 券商无奈关门

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商业周刊（中文版） 2015年第18期 49-50页

作者： denyse godoy 汪泽

巴西历史第二久的经纪商Corretora souza Barros Cibioe Titulos挺过了将近90个年头，在此期间巴西经历过3次军事政变、1次主权违约，还有上世纪80年代导致物价每隔1个月就翻倍的恶性通货膨胀。然而这家经纪商却未能抵御当前的危机——... 详细信息

巴西历史第二久的经纪商Corretora souza Barros Cibioe Titulos挺过了将近90个年头，在此期间巴西经历过3次军事政变、1次主权违约，还有上世纪80年代导致物价每隔1个月就翻倍的恶性通货膨胀。然而这家经纪商却未能抵御当前的危机——大宗商品价格暴跌加上腐败丑闻，这场丑闻打击了巴西建筑商，总统迪尔玛·罗塞芙（Dilma Rousseff）也不得不极力争取延续自己的政治生命。

关键词：巴西股市无奈券商恶性通货膨胀大宗商品价格军事政变 80年代

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