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Ontogenetic niche specialization of the spider crab Libinia ferreirae associated with the medusa Lychnorhiza lucerna

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Current Zoology 2022年第5期68卷 549-559页

作者： Geslaine rafaela Lemos Gonçalves Milena Regina Wolf Mariana Antunes Felipe Wanderley Amorim Maria Lucia Negreiros-Fransozo Antonio Leão Castilho Group of Studies on Crustacean Biology Ecology and Culture-NEBECCBiosciences InstituteSão Paulo State UniversityBotucatuSP 18618-689Brazil and Laboratory of Pollination Ecology and Interactions-LEPI Biosciences InstituteSão Paulo State UniversityBotucatuSP 18618-689Brazil

Symbiotic relationships in marine environments are not fixed and can change throughout the animal’s *** study investigated the ontogeny of symbiosis of the spider crab Libinia ferreirae with the host medusa Lychnorhiza *** described the type of relationship,the temporal correlation among species,and food *** than 50%of the sampled crabs were symbionts,most in early life *** highest number of crabs found in a single medusa was *** was observed throughout most of the year but was more evident in warm *** crab has many benefits in this relationship with a *** is the use of food resources captured by the medusa,primarily *** the crab steals the medusa’s food,it is a kleptoparasitic *** is a niche partition between symbiont and the free-living crabs as they occupy different habitats and use nonoverlapping food *** research reported that symbiosis first developed during the crab’s last larval phase(megalopa)when crab and medusa are in the same *** of the crab’s behavior shows that symbiosis occurs when the crab can grab to the medusa when the host touches the sea *** crab also took advantage of water currents,releasing itself from the substrate and then drifting toward the *** symbiotic relationship that crabs have with the medusa provides then with a nursery,food resources,shelter,dispersion,and decreased competition with free-living adult crabs,all essential for the crab’s survival.

关键词： behavior development kleptoparasitism megalopa niche segregation

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Near-infrared leaf reflectance modeling of Annona emarginata seedlings for early detection of variations in nitrogen concentration

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Journal of Forestry Research 2023年第1期34卷 269-282页

作者： rafaela Lancas Gomes Marília Caixeta Sousa Felipe Girotto Campos Carmen Sílvia Fernandes Boaro José Raimundo de Souza Passos Gisela Ferreira Bioestatistic Plant BiologyParasitology and Zoology DepartmentBioscience Institute(IBB)Universidade Estadual Paulista(UNESP)BotucatuSao PauloBrazil

Nitrogen(N)monitoring is essential in nurseries to ensure the production of high-quality *** spectroscopy(NIRS)is an instantaneous,nondestructive method to monitor *** data such as NIRS can also provide the basis for developing a new vegetation spectral index(VSI).Here,we evaluated whether NIRS combined with statistical modeling can accurately detect early variations in N concentration in leaves of young plants of Annona emargiaata and developed a new VSI for this *** were grown in a hydroponics system with 0,2.75,5.5or 11 mM N for 45 *** we measured gas exchange,chlorophylla fluorescence,and pigments in leaves;analyzed complete leaf nutrients,and recorded spectral data for leaves at 966 to 1685 nm using *** a statistical learning approach,the dimensionality of the spectral data was reduced,then models were generated using two classes(N deficiency,N)or four classes(0,2.75,5.5,11 mM N).The best combination of techniques for dimensionality reduction and classification,respectively,was stepwise regression(PROC STEPDISC)and linear discriminant *** was possible to detect N deficiency in seedlings leaves with 100%precision,and the four N concentrations with93.55%accuracy before photosynthetic damage to the plant ***,NIRS combined with statistical modeling of multidimensional data is effective for detecting N variations in seedlings leaves of ***.

关键词： Mineral nutrition of plants Near-infrared spectroscopy Spectral vegetation index Digital signature Statistical learning Fluorescence of chlorophylla

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Application of RNA interference in triatomine （Hemiptera： Reduviidae） studies

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Insect Science 2013年第1期20卷 40-52页

作者： rafaela M. M. Paim Ricardo N. Araujo Michael J. Lehane Nelder F. Gontijo MarcosH. Pereira Departamento de Parasitologia Instituto de Ciencias Biologicas Universidade Federal de Minas Gerais Bloco 14 Sala 177 Av. AntonioCarlos 6627 Pampulha CEP 30270-901 Belo Horizonte MG Brazil Liverpool School of Tropical Medicine Pembroke Place LiverpoolL3 5QA UK

Triatomines （Hemiptera： Reduviidae） are obligate hematophagous insects. They are of medical importance because they are vectors of Trypanosoma cruzi, the causative agent of Chagas disease in the Americas. In recent years, the RNA interference （RNAi） technology has emerged as a practical and useful alternative means of studying gene function in insects, including triatomine bugs. RNAi research in triatomines is still in its early stages, several issues still need to be elucidated, including the description of the molecules involved in the RNAi machinery and aspects related to phenotype evaluation and persistence of the knockdown in different tissues and organs. This review considers recent applications of RNAi to triatomine research, describing the major methods that have been applied during the knockdown process such as the double-stranded RNA delivery mechanism （injection, microinjection, or ingestion） and the phenotype characterization （mRNA and target protein levels） in studies conducted with the intent to provide greater insights into the biology of these insects. In addition to the characterization of insect biomolecules, some with biopharmacological potential, RNAi may provide a new view of the interaction between triatomine and trypanosomatids, enabling the development of new measures for vector control and transmission of the parasite.

关键词： dsRNA knockdown phenotype RNAi triatomine

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Update on endoscopic diagnosis, management and surveillance strategies of esophageal diseases

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World Journal of Gastrointestinal Endoscopy 2012年第4期4卷 117-122页

作者： Fernando Fornari rafaela Wagner Department of Gastroenterology School of Medicine Universidade de Passo Fundo CEP 99010080 Centro Passo Fundo-RS Brazil

In the last few decades, upper gastrointestinal endoscopy has become the most complementary test for investigation of esophageal diseases. Its accessibility and safety guarantee wide clinical utilization in patients with suspected benign and malignant diseases of the esophagus. Recent technological advances in endoscopic imaging and tissue analysis obtained from the esophagus have been useful to better understand and manage highly relevant diseases such as gastroesophageal reflux disease, eosinophilic esophagitis and esophageal cancer. Using endoscopy to elucidate esophageal disorders in children has been another field of intensive and challenging research. This editorial highlights the latest advances in the endoscopic management of esophageal diseases, and focuses on Barrett’s esophagus, esophageal cancer, eosinophilic esophagitis, as well as esophageal disorders in the pediatric population.

关键词： Barrett’s esophagus Eosinophilic esophagitis Esophageal cancer Esophageal diseases Upper gastrointestinal endoscopy

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Cannabinoid CB_(2) receptors and spinal microglia are implicated in tingenone-mediated antinociception in mice

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Asian Pacific Journal of Tropical Biomedicine 2021年第4期11卷 141-147页

作者： Clarice C.V.Moura rafaela S.dos Santos Lucienir P.Duarte Giovane Galdino Pharmaceutical Sciences Faculty Federal University of AmazonasManausAmazonasBrazil Institute of Motricity Science Federal University of AlfenasAlfenasMinas GeraisBrazil Department of Chemistry Institute of Exact SciencesUFMGBelo HorizonteMinas GeraisBrazil

Objective:To investigate the antinociceptive effect of tingenone on inflammatory pain,as well as and the involvement of the cannabinoid receptors type 2(CB2)and spinal microglia in this ***:Male Swiss mice were subjected to inflammatory pain induced by intraplantar injection of *** nociceptive threshold was measured by von Frey filaments *** was administered orally 60 min before carrageenan *** evaluate the involvement of CB2 receptor,endocannabinoids,and microglia,AM630(a CB2 receptor antagonist),MAFP(an inhibitor of an enzyme that hydrolyses endocannabinoids),and minocycline(a microglial inhibitor)were given intrathecally 20 min before tingenone *** addition,an immunofluorescence assay was used to evaluate CB2 receptor and CD11 B(a microglial marker)expression in the spinal cord dorsal ***:Tingenone significantly reduced carrageenan-induced hyperalgesia,which was reversed by pretreatment with *** and minocycline potentiated and prolonged the tingenoneinduced ***11 B expression was increased in the spinal cord dorsal horn of mice with inflammatory pain pretreated with tingenone,which was reduced by AM630,MAFP,and ***:CB2 receptors and endocannabinoids participate in the tingenone-induced antinociception which may involve the inhibition of microglia at spinal level.

关键词： Tingenone Antinociception CB2 Cannabinoid receptor Endocannabinoids Microglia

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Facility managers＇ perceptions on building performance assessment

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Frontiers of Engineering Management 2018年第3期5卷 324-333页

作者： rafaela bortolini núria forcada Department of Project and Construction Engineering (DPCE) Group ofConstruction Research and Innovation (GRIC) Universitat Politecnicade Catalunya (UPC) Terrassa Barcelona Spain

During the operational phase, building performance may decrease in various areas, so that the end users' requirements are no longer met. Consequently, indicators are useful to assess and improve the performance of existing buildings. In this study, we carried out a literature review and organized a focus group with facility management experts to gather and analyze facility managers' perceptions on operational indicators that could be used to assess the performance of buildings. The results revealed that the core indicators used to measure a building's operational performance are related to safety and assets working properly, health and comfort, space functionality,and energy performance. The findings also revealed that these indicators can be obtained from three sources: a)facility managers/operators, who carry out corrective maintenance and perform technical inspections, b) regular users, who report complaints and fill-in satisfaction questionnaires, and c) sporadic users, who also fill-in satisfaction questionnaires. These indicators and their sources can contribute to a better analysis of building performance and the definition of measures to improve performance during the operational phase of a building.

关键词： building performance facility management non-residential buildings

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Valorization of the agro-industrial by-products of bacupari(Garcinia brasiliensis(Mart.))through production of flour with bioactive properties

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Food Bioscience 2022年第1期45卷 377-385页

作者： Anely Maciel de Melo rafaela Cristina Turola Barbi Bruno Patrício Costa Mˆonica Ikeda Danielle Carpine Rosemary Hoffmann Ribani Food Engineering Graduate Program Federal University of ParanaDepartment of Chemical Engineering81531-990CuritibaPRBrazil

Brazil has a wide variety of fruits that remain insufficiently *** encourage the use of one such fruit,the bacupari((Garcinia brasiliensis(Mart.)),the current study produced flours from its by-products(the peel and seed)at two maturation stages and subsequently evaluated their proximate composition,physical,antioxidant,bioactive,microstructural and thermal *** results revealed that the flours have a high in fiber content(>15%)and are a potential source of protein(>5%).Seed flour has an energy value similar to that of wheat flour and other conventional *** flour micrographs indicate the presence of starch,a fact confirmed by viscosity *** flours contain phenolic compounds and exhibit antioxidant activity,especially the unripe peel *** the compounds identified by chromatography,those present in the greatest concentrations were quinine(≅111μg/g),p-coumaric acid(≅25μg/g),m-coumaric acid(≅15μg/g),and formononetin(≅21μg/g),all of which are known to have several human health *** flour crystallinity diminished as the fruit *** flour exhibited similar thermal transitions but less thermal stability than seed *** summary,this study revealed that flours produced from the peel and seeds of bacupari,which are generated in large quantities as agro-industrial by-products,can be used as alternative ingredients in various sectors of the food industry.

关键词： Antioxidant activity Bacupari fruit Seed Peel Phenolic compounds

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Distinguishing the Regional Atmospheric Controls on Precipitation Isotopic Variability in the Central-Southeast Portion of Brazil

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Advances in Atmospheric Sciences 2022年第10期39卷 1693-1708,I0018-I0020页

作者： Vinícius dos SANTOS Peter MARSHALL FLEMING Luís HENRIQUE MANCINI Stela DALVA SANTOS COTA Graziele Beatriz de LIMA rafaela RODRIGUES GOMES Roberto Eduardo KIRCHHEIM Ricardo SANCHÉZ-MURILLO Didier GASTMANS São Paulo State University(UNESP) Environmental Studies Center.Av.24ABased1515-Bela Vista13.506-900Rio Claro(SP)Brazil Center for the Development of the Nuclear Technology(CDTN-CNEN) Av.Presidente Antônio Carlos6.627Campus da UFMG-Pampulha31270-90Belo Horizonte(MG)Brazil Universidade de Brasília-UnB Instituto de GeociênciasLaboratório de Isótopos Estáveis.Campus"Darcy Ribeiro"Asa Norte70.910-900Brasília(DF)Brasil Hydrology and Territorial Management Directory(DHT) The Geological Survey of Brazil(CPRM-SGB)São Paulo(SP)Brazil University of Texas at Arlington Earth and Environmental Sciences Department500 Yates StreetArlingtonTexas76019USA Stable Isotopes Research Group and Water Resources Management Laboratory Universidad NacionalHerediaCosta Rica

Precipitation isotope ratios(O and H)record the history of water phase transitions and fractionation processes during moisture transport and rainfall ***,we evaluated the isotopic composition of precipitation over the central-southeastern region of Brazil at different *** isotopic compositions were associated with classical effects(rainfall amount,seasonality,and continentality),demonstrating the importance of vapor recirculation processes and different regional atmospheric systems(South American Convergence Zone-SACZ and Cold Fronts-CF).While moisture recycling and regional atmospheric processes may also be observed on a daily timescale,classical effects such as the amount effect were not strongly correlated(δ^(18)O-precipitation rate r≤-0.37).Daily variability revealed specific climatic features,such asδ^(18)O depleted values(~-6‰to-8‰)during the wet season were associated with strong convective activity and large moisture *** isotopic analysis revealed the role of different moisture sources and transport *** ratios combined with d-excess explain how atmospheric recirculation processes interact with convective activity during rainfall formation *** findings provide a new understanding of rainfall sampling timescales and highlight the importance of water isotopes to decipher key hydrometeorological processes in a complex spatial and temporal context in central-southeastern Brazil.

关键词： precipitation stable water isotopes d-excess moisture source and transport southern Atlantic Ocean and Amazon

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Effects of sulforaphane on brain mitochondria: mechanistic view and future directions

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2020年第4期21卷 263-279页

作者： Fernanda rafaela JARDIM Fhelipe Jolner Souza de ALMEIDA Matheus Dargesso LUCKACHAKI Marcos Roberto de OLIVEIRA Forensic Institute Forensic Toxicology DivisionPostmortem Toxicology SectorCEP 90160-093Porto AlegreRSBrazil Postgraduate Program in Health Sciences(PPGCS) Federal University of Mato Grosso(UFMT)CEP 78060-900CuiabaMTBrazil Department of Chemistry Federal University of Mato Grosso(UFMT)CEP 78060-900CuiabaMTBrazil Postgraduate Program in Chemistry(PPGQ) Federal University of Mato Grosso(UFMT)CEP 78060-900CuiabaMTBrazil Department of Biochemistry Prof.“Tuiskon Dick” Federal University of Rio Grande do Sul(UFRGS)CEP 90035-000Porto AlegreRSBrazil

The organosulfur compound sulforaphane(SFN;C6H11NOS2) is a potent cytoprotective agent promoting antioxidant, anti-inflammatory, antiglycative, and antimicrobial effects in in vitro and in vivo experimental models. Mitochondria are the major site of adenosine triphosphate(ATP) production due to the work of the oxidative phosphorylation(OXPHOS) system. They are also the main site of reactive oxygen species(ROS) production in nucleated human cells. Mitochondrial impairment is central in several human diseases, including neurodegeneration and metabolic disorders. In this paper, we describe and discuss the effects and mechanisms of action by which SFN modulates mitochondrial function and dynamics in mammalian cells. Mitochondria-related pro-apoptotic effects promoted by SFN in tumor cells are also discussed. SFN may be considered a cytoprotective agent, at least in part, because of the effects this organosulfur agent induces in mitochondria. Nonetheless, there are certain points that should be addressed in further experiments, indicated here as future directions, which may help researchers in this field of research.

关键词： Sulforaphane Brain Mitochondria Antioxidant Nuclear factor erythroid 2-related factor 2(Nrf2)

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Association of Helicobacter pylori infection and giardiasis: Results from a study of surrogate markers for fecal exposure among children

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World Journal of Gastroenterology 2005年第18期11卷 2759-2763页

作者： Edson Duarte Moreira Jr Victor Bastos Nassri rafaela Sousa Santos Junísia Ferraz Matos Wilson Andrade de Carvalho Célia Stolve Silvani Círia Santana e Sant'Ana Núcleo de Apoio à Pesquisa Fundac■o Irm■ Dulce Salvador Bahia Brazil Centro de Pesquisas Goncalo Moniz Fundac■o Oswaldo Cruz Salvador Bahia Brazil Diretoria Científica e Laboratório do Hospital S■o Rafael Salvador Bahia Brazil Núcleo de Apoio à Pesquisa Fundac■o Irm■Dulce Salvador Bahia Brazil Centro de Pesquisas Goncalo Moniz Fundac■o Oswaldo Cruz Salvador Bahia Brazil Diretoria Científica e Laboratório do Hospital S■o Rafael Salvador Bahia Brazil Diretoria Científica e Laboratório do Hospital S■o Rafael Salvador Bahia Brazil Diretoria Científica e Laboratório do Hospital S(?)o Rafael Salvador Bahia Brazil Núcleo de Apoio à Pesquisa Fundac(?)o Irm(?) Dulce Salvador Bahia Brazil

AIM: To investigate whether Helicobacter pylori (H pylori) infection is associated with hepatitis A virus (HAV) infection, presence of enteroparasites, and other surrogates of fecal exposure. METHODS: We conducted a cross-sectional study in 121 children consecutively admitted at a pediatric hospital in Salvador, Brazil. H pyloriand HAV infection were identified by the presence of serum antibodies. Stool specimens were examined for the presence of ova and parasites. A structured questionnaire inquiring about sanitary conditions and life style was applied to each subject. RESULTS: Fifty-one of the 121 children (42.1%) were found to be seropositive for H pylori, and 45 (37.2%) for HAV. The seroprevalence of Hpyloriand HAV both increased significantly with age. Cross-tabulation of data showed that 26 (21.5%) were seropositive and 51 (42.1%) were negative for both H py/lriand HAV antibodies (x^2=7.18, OR=2.8, CI 1.30-5.97). The age adjusted OR for an HAV-infected child being H pylori positive was 2.3 (CI 1.02-5.03). The agreement between H pylori and HAV seropositivity was fair (k=0.24). After controlling for possible confounding, the variables remaining independently associated with seropositivity to H pylori were age, presence of Giardia lamblia in feces (OR=3.2, 95%CI, 1.1-9.5) and poor garbage disposal quality (OR=2.4, 95%CI, 1.1-5.1). CONCLUSION: Our data suggest that H pylori infection is associated with surrogate markers of fecal exposure. Thus, we conclude that the fecal-oral route is relevant in the transmission of HP among children in an urban setting of a developing country. The association observed between G. lamblia and H pylori infection may have several explanations. Further studies to investigate this relationship are warranted.

关键词： H pylori Hepatitis A virus Epidemiology Transmission Enteroparasites Brazil

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