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seasonal variation and host sex affect bat–bat fly interaction networks in the Amazonian savannahs

Integrative Zoology 2024年第3期19卷 400-416页

作者： paulo MEJIA Gustavo Lima URBIETA Bruna da silva XAVIER IsaíJorge de CAsTRo JoséJúlio de ToLEDo Gustavo GRACIoLLI Lucio AndréVIANA DIAs William Douglas CARVALHo programa de pós-Graduação em Biodiversidade Tropical Universidade Federal do Amapá(UNIFAP)MacapáAPBrazil programa de pós-Graduação em Ecologia Instituto de BiologiaCentro de Ciências da SaúdeUniversidade Federal do Rio de Janeiro(UFRJ)Rio de JaneiroRJBrazil Laboratório de Mamíferos Instituto de Pesquisas Científicas e Tecnológicas do Estado do Amapá(IEPA)MacapáAPBrazil programa de pós-Graduação em biologia animal Laboratório de SistemáticaEcologia e Evolução(LSEE)Instituto de BiociênciasUniversidade Federal de Mato Grosso do Sul(UFMS)Campo GrandeMTBrazil Terrestrial Ecology Group(TEG-UAM) Departamento de EcologíaFacultad de CienciasUniversidad Autónoma de MadridMadridSpain Centro de Investigación en Biodiversidad y Cambio Global(CIBC-UAM) Universidad Autónoma de MadridMadridSpain

Bats are the second-most diverse group of mammals in the world,and bat flies are their main ***,significant knowledge gaps remain regarding these antagonistic interactions,especially since diverse factors such as seasonality and host sex can affect their network ***,we explore the influence of such factors by comparing species richness and composition of bat flies on host bats,as well as specialization and modularity of bat–bat fly interaction networks between seasons and adult host *** captured bats and collected their ectoparasitic flies at 10 sampling sites in the savannahs of Amapástate,northeastern region of the Brazilian *** female bats being more parasitized and recording greater bat fly species richness in the wet season,neither relationship was statistically *** pooled network could be divided into 15 compartments with 54 links,and all subnetworks comprised>12 *** total number of links ranged from 27 to 48(for the dry and wet seasons,respectively),and female and male subnetworks had 44 and 41 links,*** values were very low for the pooled network and for all *** results revealed higher bat fly species richness and abundance in the wet season,whereas specialization and modularity were higher in the dry ***,the subnetwork for female bats displayed higher specialization and modularity than the male ***,both seasonality and host sex contribute in different ways to bat–bat fly network *** studies should consider these factors when evaluating bat–bat fly interaction networks.

关键词： Amapá Amazon biome bat flies bats interaction networks

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determinant variables on the isotopic values of particulate organic matter in a neotropical floodplain

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Journal of oceanology and Limnology 2024年第4期42卷 1173-1185页

作者： Vinícius de ANDRAde URBANo Matheus MAXIMILIAN RATZ sCoARIZE Gustavo HENRIQUE ZAIA ALVEs Driele deLANIRA-sANTos Marcela da sILVA CAETANo Evanilde BENEDITo departamento de biologia(DBI) Laboratório de Ecologia EnergéticaUniversidade Estadual de Maringá(UEM)Maringá87020-900Brasil programa de pós-graduação em Ecologia de Ambientes Aquáticos Continentais(pEA) Universidade Estadual de Maringá(UEM)Maringá87020-900Brasil departamento de biologia Geral Universidade Estadual de Ponta Grossa(UEPG)Campus UvaranasPonta Grossa 84030-900Brasil Australian Rivers Institute(ARI) Griffith UniversityNathan QLD 4111Australia

particulate organic matter(poM)is an important energy source for aquatic consumers,understanding its origin and composition is essential for understanding the energetic dynamics of aquatic *** aim of this study was to analyze the relationship between poM and phytoplankton(isotopic values and chlorophyll concentration)and abiotic variables during dry and rainy *** was conducted in rivers and lagoons in the floodplain of the Upper paraná*** found a greater difference in ^(δ13)C values of poM between sampling points than between seasons,indicating that the composition of regional sources influences the composition of poM more than dry and rainy *** addition,the concentration of chlorophyll during the dry season was positively correlated with ^(δ13)C values during that rainy ***,we found a relationship between factors limiting the growth of phytoplankton and ^(δ13)C values of poM,such as phosphate ions,indicating that variables that regulate phytoplankton growth tend to influence the composition of poM in river ***,maintaining the variables that regulate the phytoplankton community is of fundamental importance for the composition of poM,an important energy source in aquatic environments.

关键词： freshwater wetland stable isotopes food web subtropical environment

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Long chikungunya?An overview to immunopathology of persistent arthralgia

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World Journal of Virology 2024年第2期13卷 48-57页

作者： Jayme Euclydes picasky silveira-Freitas Maria Luiza Campagnolo Mariana dos santos Cortez Fabrício Freire de Melo Ana Carla Zarpelon-schutz Kádima Nayara Teixeira Campus Toledo Universidade Federal do ParanáToledoParaná85919-899Brazil Instituto Multidisciplinar em saúde Universidade Federal da BahiaCampus Anísio TeixeiraVitória da ConquistaBahia 45029-094Brazil programa de pós-graduação em Biotecnologia PalotinaUniversidade Federal do Paraná-Setor PalotinaParaná85950-000Brazil programa Multicêntrico de pós-graduação em Bioquímica e biologia Molecular PalotinaUniversidade Federal do Paraná-Setor PalotinaParaná85950-000Brazil

Chikungunya fever(CF)is caused by an arbovirus whose manifestations are extremely diverse,and it has evolved with significant severity in recent *** clinical signs triggered by the Chikungunya virus are similar to those of other ***,fever starts abruptly and reaches high levels,followed by severe polyarthralgia and myalgia,as well as an erythematous or petechial maculopapular rash,varying in severity and *** 40%to 60%of affected individuals report persistent arthralgia,which can last from months to *** symptoms of CF mainly represent the tissue tropism of the virus rather than the immunopathogenesis triggered by the host's immune *** main mechanisms associated with arthralgia have been linked to an increase in T helper type 17 cells and a consequent increase in receptor activator of nuclear factor kappa-Βligand and bone *** review suggests that persistent arthralgia results from the presence of viral antigens post-infection and the constant activation of signaling lymphocytic activation molecule family member 7 in synovial macrophages,leading to local infiltration of CD4+T cells,which sustains the inflammatory process in the joints through the secretion of pro-inflammatory *** term"long chikungunya"was used in this review to refer to persistent arthralgia since,due to its manifestation over long periods after the end of the viral infection,this clinical condition seems to be characterized more as a sequel than as a symptom,given that there is no active infection involved.

关键词： Chikungunya Immunopathology Inflammation process persistent arthralgia signaling lymphocytic activation molecule family member 7

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opposite latitudinal gradients for species richness and phylogenetic diversity of endemic snakes in the Atlantic Forest

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Current Zoology 2024年第4期70卷 522-530页

作者： JoséThales da Motta portillo JosuéAnderson Rēgo Azevedo Fausto Erritto Barbo Ricardo J.sawaya programa de pos-graduacao em biologia animal Instituto de BiocienciasLetras e Ciencias ExatasUniversidade Estadual Paulista"Julio de Mesquita Filho"Rua Cristovao Colombo2265Sao Josédo Rio PretoSao Paulo 15054-000Brazil programa de Colecoes Cientificas Biologicas Coordenagao de BiodiversidadeInstituto Nacional de Pesquisas da AmazoniaAvenida AndréAraujo2936ManausAmazonas 69067-375Brazil Gothenburg Global Biodiversity Centre University of GothenburgBox 461GothenburgVastra Gotaland SE-40530Sweden Instituto Federal de Educacao Ciencia e Tecnologia de Minas GeraisRodovia Machado-Paraguacukm 3MachadoMinas Gerais 37750-000Rraizil Centro de Ciencias Naturais e Humanas UniversidadeFederaldo ABCRua Arcturus03Sao Bernardo do CampoSao Paulo09606-070Brazil

The decrease in species richness toward higher latitudes is an expected biogeographical *** pattern could be related to particular envi-ronmental constraints and the evolutionary history of ***,species richness does not fully represent the evolutionary history of the clades behind their *** diversity better clarifies the role of historical factors in biogeographical *** analyzed envi-ronmental and historical drivers related to latitudinal variation in species richness and phylogenetic diversity of Atlantic Forest endemic *** implemented species distribution models,from voucherbased locality points,to map the snake ranges and *** used generalized additive mixed models to evaluate the relationships among the diversity metrics and area,topographical roughness,and past climate change velocity since the Last Maximum Glacial in the Atlantic Forest latitudinal *** to the expected general pattern,species richness was higher toward higher latitudes,being positively related to past climatic *** richness also increased with total area and higher topographical *** diversity,on the other hand,showed opposite relationships related to the same *** diversity increased with lower climatic stability in lower ***,dimensions of diversity were affected in different ways by historical and environmental constraints in this unique and threatened biodiversity hotspot.

关键词： biodiversity latitudinal gradient neotropical region phylogenetic diversity serpents species richness.

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Adipose tissue,systematic inflammation,and neurodegenerative diseases

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Neural Regeneration Research 2023年第1期18卷 38-46页

作者： Ana paula de A.Boleti pedro Henrique de o.Cardoso Breno emanuel F.Frihling patrícia souza e silva Luiz Filipe R.Nde Moraes Ludovico Migliolo s-Inova Biotech Programa de Pós-Graduação em BiotecnologiaUniversidade Católica Dom BoscoCampo GrandeMSBrazil programa de pós-Graduação em biologia Celular e Molecular Programa de Pós-Graduação em BioquímicaUniversidade Federal do Rio Grande do NorteNatalBrazil

obesity is associated with several diseases,including mental *** tissue is distributed around the internal organs,acting in the regulation of metabolism by storing and releasing fatty acids and adipokine in the *** nutritional intake results in hypertrophy and proliferation of adipocytes,leading to local hypoxia in adipose tissue and changes in these adipokine *** leads to the recruitment of immune cells to adipose tissue and the release of pro-inflammatory *** presence of high levels of free fatty acids and inflammatory molecules interfere with intracellular insulin signaling,which can generate a neuroinflammatory *** this review,we provide an up-to-date discussion of how excessive obesity can lead to possible cognitive *** also address the idea that obesity-associated systemic inflammation leads to neuroinflammation in the brain,particularly the hypothalamus and hippocampus,and that this is partially responsible for these negative cognitive *** addition,we discuss some clinical models and animal studies for obesity and clarify the mechanism of action of anti-obesity drugs in the central nervous system.

关键词： adiposity anti-obesity drugs hypothalamic inflammation metabolic disease neurodegenerative disease neuroinflammation

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Impact of the metabolic syndrome on the evolution of neurodegenerative diseases

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Neural Regeneration Research 2021年第4期16卷 688-689页

作者： Ana paula de A.Boleti Jeeser Alves Almeida Ludovico Migliolo s-InovaBiotech Programa de Pós-Graduação em BiotecnologiaUniversidade Católica Dom BoscoCampo GrandeMSBrazil programa de pós-Graduação em Ciências do Movimento Programa de Pós-Graduação em Saúde e Desenvolvimento na Região Centro OesteUniversidade Federal de Mato Grosso do SulCampo GrandeMSBrazil programa de pós-graduação em biologia Celular e Molecular Programa de Pós-graduação em BioquímicaUniversidade Federal do Rio Grande do NorteNatalBrazil

Metabolic syndrome(Mets)might be defined as the simultaneous accumulation of s everal functional changes that frequently occur in adults over 60 years of age(Gomez et al.,2018).The diagnosis of Mets requires the presence of three or more factors such as high body mass,type-2 diabetes mellitus(T2DM),dyslipidemia,and arterial hypertension,which increase the risk of cardiovascular diseases as well as neurological complications,as stroke and dementia(Dyken and Lacoste,2018).Usually,these functional changes coincide and result in insensitivity for example hormones as leptin,adiponectin,and insulin(Dyken and Lacoste,2018).

关键词： diagnosis arterial hypertension

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Abiotic drivers shape seed inputs and outputs in a tropical wetland on Croton trinitatis population

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Ecological processes 2022年第1期11卷 65-77页

作者： Francielli Bao Arnildo pott pedro Manuel Villa Centro de Avaliação da Biodiversidade Pesquisa e Conservação do Cerrado(CBC)Instituto Chico Mendes de Conservação da Biodiversidade(ICMBio)BrasíliaDF 70670-350Brazil programa de pós-Graduação em biologia Vegetal Instituto de BiociênciasUniversidade Federal de Mato Grosso do SulCampo GrandeMS 79070-900Brazil programa de pós-graduacão em Botânica Departamento de Biologia VegetalUniversidade Federal de ViçosaViçosaMG 36570-900Brazil Fundación para la Conservación de la Biodiversidad Mérida 7101Venezuela

Background:predicting how natural and anthropogenic drivers shape different ecological indicators,such as plant populations along environmental gradients,can be a relevant tool for establishing management and conservation criteria of tropical *** aimed to assess the effects of seasonal flood disturbance,type of grasslands and topographical conditions on Croton trinitatis population distribution in a tropical ***:The study was carried out in a seasonally flooded grassland(Central-West Brazil).We conducted samplings of soil on the dry and flood hydrophases of the *** took the samples in eight seasonal ponds,with 1 km interval between *** were marked during the flood period,observing the water level,one in the lowest zone,in the middle of the pond=low(ca.60 cm deep),one at the pond edge=mid(ca.30 cm deep)and one in the higher zone,on the external part=high(ca.1 cm deep).Results:The results showed that the topography,seasonality,and types of grassland determine differences in the abundance patterns of adult plants and seedlings,and seed bank and seed *** abiotic factors can shape plant population-related ecological processes and patterns,with outputs(germination and predation)and inputs(local dispersion and from neighbouring areas)of proportional seeds for the population maintenance in this ***:We emphasize the importance of these findings,to show that abiotic factors are not the only ones to be considered in ecological studies of distribution and structuring of populations in habitats with extreme seasonal events.

关键词： Environmental filter Flood disturbance pantanal population ecology seasonal change seed predation seedling soil seed bank

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Timing of breeding as a determinant of nest success of the vulnerable Chestnut seedeater(sporophila cinnamomea)in grasslands of southern south America

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Avian Research 2023年第1期14卷 126-135页

作者： Jonas Rafael Rodrigues Rosoni Carla suertegaray Fontana Caio JoséCarlos programa de pós-graduacão em biologia animal Departamento de ZoologiaUniversidade Federal do Rio Grande do SulUFRGSAvenida Bento Gonçalves950091501-970Porto AlegreRio Grande do SulBrazil Laboratório de ornitologia Museu de Ciências e TecnologiaPrograma de Pós-Graduacão em Ecologia e Evolucão da BiodiversidadePontifícia Universidade Católica do Rio Grande do SulPUCRSAvenida Ipiranga668190619-900Porto AlegreRio Grande do SulBrazil departamen to de Ecologia Universidade Federal do Rio Grande do SulUFRGSAvenida Bento Gonçalves950091501-970Porto AlegreRio Grandedo SulBrazil

The breeding traits of sporophila seedeaters have been relatively well studied in recent years;nevertheless,a group of ten species in the genus,known as southern capuchinos,remain *** is the case with Chestnut seedeater(sporophila cinnamomea),a species vulnerable to extinction,which breeds in the grasslands of southeast south America and,after reproduction,migrates towards the Cerrado region in central ***,we investigated breeding ecology and calculated average clutch size,productivity,the sex ratio of nestlings,and estimated nest *** we tested(1)whether there is a relationship between the number of active nests and environmental variables,(2)whether the nestling sex ratio deviates from the 1:1 ratio,(3)whether clutch size varies between breeding seasons,and(4)whether the nest success is related to starting date,nest age,plant support,nest height from the ground,and clutch *** two breeding seasons(october-March 2018-2020),we monitored 98 *** generated survival models with five interacting covariates to assess the survival of the *** recorded the entire breeding period for Chestnut seedeater,which was estimated to be 4.6 months,similar to other migratory *** size did not differ between breeding *** sex ratio of nestlings was not significantly different from the 1:1 *** success was 31%,and predation was the leading cause of unsuccessful nests(83%).The daily survival rate was 0.95±*** main predictor of nest survival was the covariate starting *** findings,added to other aspects of the species’natural history described here,may help illuminate the ecology and behavior of Chestnut seedeater and other southern endangered capuchinos,and grassland-dependent species of south America.

关键词： Brood parasitism Clutch size Neotropical grassl ands Nest age Nest predation Nest survival

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Neotropical mustelids: fecal metabolome diversity and its potential for taxonomic discrimination

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Integrative Zoology 2023年第3期18卷 518-529页

作者： Lana Resende de ALMEIDA Marina Amaral ALVEs Ana Maria obino MAsTELLA Rafael GARRETT Maria João Ramos pEREIRA Bird and Mammal Evolution Systematics and Ecology LabPrograma de Pós-Graduação em Biologia AnimalUniversidade Federal do Rio Grande do SulPorto AlegreRio Grande do SulBrazil programa de pós-Graduação em biologia animal Universidade Federal do Rio Grande do SulPorto AlegreRio Grande do SulBrazil Chemistry Institute Metabolomics Laboratory(LabMeta–LADETEC/IQ–UFRJ)Avenida Horácio MacedoFederal University of Rio de JaneiroRio de JaneiroRJBrazil Walter Mors Institute of Research on Natural products Universidade Federal do Rio de JaneiroRio de JaneiroRJBrazil

Chemical proﬁles of non-invasive biological material,such as feces,have great potential to study elusive animals or those with low population ***,we use a metabolomic approach to evaluate Neotropical mustelids as a biological model to describe the diversity of the metabolites present in fecal samples,as well as to evaluate the potential of chemical proﬁles for taxonomic *** collected fecal samples from captive individuals of 5 species of mustelids occurring in Brazil and analyzed them by liquid chromatography coupled to high-resolution mass *** 200 compounds have been annotated;“bile acids,alcohols and derivatives”was the most expressive class in the metabolome of all the *** successfully discriminated 3 taxonomic groups:1—tayra(Eira barbara);2—otters(Lontra longicaudis and pteronura brasiliensis;1);and 3—grisons(Galictis vittata and Galictis cuja).several compounds seemed to be associated with food intake and the digestive process,while others were found for theﬁrst time in Neotropical *** concluded that mustelids show high metabolome diversity and that species-speciﬁc identiﬁcation through metabolomic proﬁles is possible,thus contributing to the development and implementation of additional non-invasive approaches in the study of mustelids.

关键词： chemical proﬁles ecology high-resolution mass spectrometry metabolomics Mustelidae

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Essential amino acid ratios and mToR affect lipogenic gene networks and miRNA expression in bovine mammary epithelial cells

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Journal of animal science and Biotechnology 2016年第4期7卷 612-622页

作者： shanshan Li Afshin Hosseini Marina Danes Carolina Jacometo Jianxin Liu Juan J.Loor Institute of Dairy science College of Animal SciencesZhejiang University department of animal sciences Mammalian Nutri Physio GenomicsUniversity of Illinois department of animal science University of Lavras NUpEEC Departamento de Clínicas VeterináriaPrograma de Pós-Gradua??o em BiotecnologiaUniversidade Federal de Pelotas

Background： The objective of this study was to study how changing the ratio of Lys to Thr, Lys to His, and Lys to Val affects the expression of lipogenic genes and microRNA （miRNA） in bovine mammary epithelial cells. Results： Triplicate cultures with the respective ＂optimal＂ amino acid （AA） ratio （opAA = Lys：Met 2.9：1; Thr：phe 1.05：1; Lys：Thr 1.8：1; Lys：His 2.38：1; Lys：Val 1.23：1） plus rapamycin （opAARMC; positive control）, opAA, Lys：Thr 2.1：1 （LT2.1）, Lys：Thr 1.3：1 （LT1.3）, Lys：His 3.05：1 （LH3.0）, or Lys：Val 1.62：1 （LV1.6） were incubated in lactogenic medium for 12 h. The expression of 15 lipogenic genes and 7 miRNA were evaluated. Responses to LT2.1, LT1.3, LH3.0, and LV1.6 relative to the control （opAARMC） included up-regulated expression ofACss2, FABp3, ACACA, FAsN, sCD, LpIN1, INsIG1, sREBF1, ppARD, and NR1H3 （commonly known as LXR-a）. Furthermore, LV1.6 up-regulated expression of ACsL1, DGAT1, and RXRA and down-regulated ppARG expression. Although no effect of opAA on expression of ppARG was observed, compared with the control, opAA up-regulated expression of the ppAR targets ACss2, FABp3, ACACA, FAsN, sCD, LpIN1, INsIG1, and sREBF1. Compared with the control, the expression of the anti-lipogenic MIR27AB was down-regulated by opAA, LT2.1, LT1.3 and LH3.0. In contrast, compared with the control, the expression of the pro-lipogenic MIR21 was up-regulated by LT2.1, LT1.3, LH3.0, and LV1.6. Conclusions： The observed up-regulation of lipogenic gene networks and the changes in expression of key miRNA involved in the control of lipogenic balance are indicative of a potentially important role of EAA ratios and mToR signaling in the regulation of milk fat synthesis.

关键词： Amino acids Milk fat synthesis mToR Nutrigenomics

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