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Assessing the relationship between the rumen microbiota and feed efficiency in Nellore steers

Journal of Animal Science and Biotechnology 2021年第4期12卷 1645-1661页

作者： Déborah Romaskevis Gomes Lopes Márcio de Souza Duarte Alex J.La Reau Ibrahim Zuniga Chaves tiago antônio de oliveira mendes Edenio detmann Cláudia Braga Pereira Bento Maria Eugênia Zerlotti Mercadante Sarah Figueiredo Martins Bonilha Garret Suen Hilário Cuquetto Mantovani departamento de Microbiologia Universidade Federal de ViçosaViçosaMG 36570-900Brazil departamento de Zootecnia Universidade Federal de ViçosaViçosaMinas GeraisBrazil department of Bacteriology University of Wisconsin-MadisonMadisonWIUSA departamento de Bioquímia e Biologia Molecular Universidade Federal de ViçosaViçosaMinas GeraisBrazil Instituto de Zootecnia Centro APTA Bovinos de CorteSertãozinhoSão PauloBrazil

Background:Ruminants rely upon a complex community of microbes in their rumen to convert host-indigestible feed into ***,little is known about the association between the rumen microbiota and feed efficiency traits in Nellore(Bos indicus)cattle,a breed of major economic importance to the global beef ***,we compare the composition of the bacterial,archaeal and fungal communities in the rumen of Nellore steers with high and low feed efficiency(FE)phenotypes,as measured by residual feed intake(RFI).Results:The Firmicutes to Bacteroidetes ratio was significantly higher(Pant in the rumen solid fraction of n-RFI steers(Pant OTU belonging to the genus Piromyces was also increased in the rumen microbiota of highefficiency ***,analysis of rumen fermentation variables and functional predictions indicated similar metabolic outputs for the microbiota of distinct FE ***:Our results demonstrate that differences in the ruminal microbiota of high and low FE Nellore steers comprise specific taxa from the bacterial,archaeal and fungal *** OTUs belonging to the genus Piromyces were identified in animals showing high feed efficiency,whereas among archaea,Methanobrevibacter was associated with steers classified as *** identification of specific RFI-associated microorganisms in Nellore steers could guide further studies targeting the isolation and functional characterization

关键词： Beef cattle ITS1 region Next-generation sequencing RFI Rumen microbiota 16S rRNA gene

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Bioremediation Potential of the Macroalga Ulva lactuca (Chlorophyta) for Ammonium Removal in Elastomer Industry Wastewater

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Advances in Bioscience and Biotechnology 2024年第6期15卷 325-343页

作者： Diego Lelis Alex Enrich-Prast Camille R. Chaves Thuane mendes Anacleto Roberta R. C. Pereira Vinicius P. de oliveira Programa de Ps-Graduao em Biotecnologia Vegetal e Bioprocessos Universidade Federal do Rio de Janeiro Rio de Janeiro Brazil Unidade Multiusurio de Anlises Ambientais Universidade Federal do Rio de Janeiro Rio de Janeiro Brazil Institute of Marine Science Federal University of So Paulo (IMar/UNIFESP) Santos Brazil department of Thematic StudiesEnvironmental Change and Biogas Solutions Research Center (BSRC) Linkping University Linkping Sweden department of Marine Biology Institute of Biology Federal University of Rio de Janeiro Rio de Janeiro Brazil

During the production of nitrile rubber, significant amounts of nitrogen in the form of ammonium are generated in the wastewater. The discharge of this high-nitrogen wastewater can lead to serious environmental issues, including eutrophication, disruption of aquatic ecosystems, and groundwater contamination. To mitigate these impacts, this research explored the bioremediation capabilities of the macroalgae Ulva lactuca (Chlorophyta) for removing nitrogen from nitrile rubber production wastewater. The study employed single-phase and Michaelis-Menten decay models based on ammonium consumption, using various dilutions of wastewater to identify the optimal concentration for treatment. The physiological state of the macroalgae was monitored by measuring the photosynthetic capacity and specific growth rate during the experiments. In the presence of U. lactuca, ammonium concentrations decreased in all treatment groups, confirming that the ammonium kinetics conformed to both applied models. Our results show that U. lactuca effectively reduces ammonium concentrations, with an approximate removal rate of 0.020 µM·g−1·min−1 across different wastewater concentrations (70%, 80%, 90%, and 100%). Notably, the treatments with 70%, 80%, and 90% wastewater strength achieved about 67% reduction in ammonium, demonstrating the alga’s capacity to treat high-nitrogen wastewater. The photosynthetic performance of U. lactuca initially declined in control conditions but stabilized across all treatments, highlighting its adaptability. The kinetic analysis using the Michaelis-Menten model indicated a Vmax of 1342 μM·g−1·DMh−1, suggesting a robust capacity for ammonium uptake when fully saturated. Our study underscores the potential of Ulva lactuca as a cost-effective and efficient agent for wastewater bioremediation, particularly in settings with high nitrogen loads.

关键词： Photosynthetic Quantum Yield One-Phase decay Model Michaelis-Menten Model Nitrogen Physiological Parameters Elastomers

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development of a Ready-to-Use PSMA-11 Kit Formulation and Biological Evaluation of Binding Affinity

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Advances in Molecular Imaging 2024年第2期13卷 7-22页

作者： Maria Renata Valente Brandão Freire Natália Marchesan Bexiga Marco antonio Stephano João Ezequiel oliveira Carlos Roberto Jorge Soares Ana Cláudia Camargo Miranda Anna Carolina de Alcântara Barbosa Marycel Figols de Barboza Laura Fernanda Garcia Luiz Felipe S. Teixeira Maria Helena Marumo Bellini Natanael Gomes da Silva Luiza Mascarenhas Balieiro Joel mendes Elaine Bortoleti de Araújo Centro de Radiofarmcia Instituto de Pesquisas Energticas e Nucleares (IPEN) Cidade Universitria So Paulo Brasil departamento de Tecnologia Farmacutica Faculdade de Cincias Farmacuticas (USP) Cidade Universitria So Paulo Brasil Centro de Biotecnologia Instituto de Pesquisas Energticas e Nucleares (IPEN) Cidade Universitria So Paulo Brasil departamento de Medicina Nuclear do Hospital Israelita Albert Einstein So Paulo/SP Brasil

Introduction: 68Ga-PSMA-11 is considered the gold standard in detection of micro and oligometastases in advanced prostate cancer, being used for therapeutic planning, as well as, potentially, for evaluating response to treatment. The development of ready-to-use lyophilized kit of PSMA-11 adds quality and safety to the routine use of this radiopharmaceutical and represents a pharmacotechnical challenge as it must preserve the integrity and specificity of the ligand. Methods: PSMA-11 kit formulation was proposed, considering radiolabeling parameters and the preservation of the peptide during the lyophilization process, using mannitol as an excipient. Critical temperature characterization studies were carried out using DSC equipment and the freeze-drying process was developed. The direct radiolabeling conditions were evaluated and standardized using 68Ge/68Ga generator eluate from two different manufacturers (ITG and Eckert & Ziegler). The radiochemical purity was evaluated by TLC and HPLC. Biological evaluation was carried out with lyophilized PSMA-11 to demonstrate the integrity of the peptide and preservation of biological activity after the lyophilization process. Results: Based on critical temperature characterization studies, the freeze-drying cycle was designed to reach a freezing temperature of around −40˚C and primary drying at 2˚C. Using 20 mg of mannitol, an intact and elegant lyophilized cake was obtained. PSMA-11 lyophilized kit was directly labeled with 68Ga eluate from 68Ge/68Ga GMP generators (ITG and Eckert & Ziegler) resulting in % RP > 95% at pH 4.0 to 4.5. The results obtained from in vitro and in vivo biological competition studies confirmed the preservation of PSMA-11 affinity for the receptor after lyophilization. Conclusion: A lyophilized formulation (Kit) of PSMA-11 was successfully obtained, which preserved the integrity and biological activity of the peptide and guaranteed radiolabeling efficiency.

关键词： 68Ga-PSMA-11 Prostate-Specific Membrane antigen (PSMA) Ready-to-Use Kit GMP-Grade Generators Metastatic Prostate Cancer PET Imaging

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The interplay between leaf water potential and osmotic adjustment on photosynthetic and growth parameters of tropical dry forest trees

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Journal of Forestry Research 2023年第1期34卷 177-186页

作者： tiago de Sousa Leite Romulo Magno oliveira de Freitas Nildo da Silva Dias Jeferson Luiz Dallabona Dombroski Narjara Walessa Nogueira Federal University of Mato Grosso CuiabáMTBrazil Federal Institute of Education Science and Technology of Rio Grande do NortePau dos FerrosRNBrazil Federal Rural University of the Semi-Arid Region MossoróRNBrazil

Mimosa tenuiflora and Piptadenia stipulacea are commonly accepted as drought-tolerant species but little is known about their response to drought followed by ***,the interplay between leaf water potential and osmotic adjustment on photo synthetic and growth parameters of these species was examined.A greenhouse study was conducted in a split-plot design with two water conditions in the main plots(control;drought followed by rehydration),and eight sampling times in the subplots(1,4and 7 days of drought,and 1,3,6,12,and 17 days of rehydration).Plant water status and biochemical changes were assessed as well as leaf gas exchange and subsequent *** drought stress,both species maintained a low leaf water potential throughout the day by accumulating compatible solutes,thus allowing a rapid and full recovery of water status when *** these plants minimized water loss by closing their stomata,neither showed stomatal limitations to *** inhibition of this process during drought was possibly related to mesophyll limitations as well as to a reversible downregulation of photo systems,along with adjustments of their *** deficits also triggered morphological adaptations at the whole plant level,leading to reduced growth,mainly of the shoots in *** and the roots in ***.

关键词： Drought stress Rehydration Gas exchange Plant biomass

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Light intensity and hydrogel soil amendment differentially affect growth and photosynthesis of successional tree species

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Journal of Forestry Research 2023年第1期34卷 257-268页

作者： Léo Vieira Leonel Fabrício de oliveira Reis Fábio Afonso Mazzei Moura de Assis Figueiredo tiago Massi Ferraz Sebastiao de oliveira Maia Júnior Patrick Costa Silva Jailma Ribeiro de Andrade Graduate Program in Agroecology State University of MaranhaoAv.Lourenco Vieira da Silva1000Jardim Sao CristovaoSao LuísMaranhao 65055-310Brazil State University of Maranhao Av.Lourenco Vieira da Silva1000Jardim Sao CristovaoSao LuísMaranhao 65055-310Brazil Graduate Program in Agriculture and Environment State University of MaranhaoPraca Goncalves Diass/nCentroBalsasMaranhao 65800-000Brazil

Global climate changes have increased temperatures,radiation indexes,and consequently,irregularities in rainfall in mainly tropical countries,considerably hindering plant establishment in recovering degraded *** objective of this study was to evaluate the growth and physiological characteristics of one species of each successional group:pioneer,secondary,and climax when subjected to different light intensities and hydrogel as a soil conditioner during rainy and dry *** experiment was conducted in the ecotone between Brazil’s two largest biomes,the Cerrado and the Amazon in the State of Maranh?*** parameters consisted of three species:Guazuma ulmifolia Lam.(pioneer),Astronium fraxinifolium Schott(secondary),and Cariniana rubra Gardner ex Miers(climax).There were two light intensities:70%and 100%,and two planting conditions:with and without soil conditioner(hydrogel).Gas exchanges were higher during the rainy season;the pioneer and secondary species had greater heights and photosynthetic rates in the dry period;the climax species had the lowest gas exchange and lowest recovery as rainfall *** pioneer and secondary species showed higher physiological plasticity,denoting better adaption to environments with high *** improved the photosynthetic performance of these species in the dry season and in areas with 100%sunlight.

关键词： Irradiance Hydrogel Photosynthetic efficiency Physiological plasticity

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Geographic information technology usage in developing countries – A case study in Mozambique

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Geo-Spatial Information Science 2018年第4期21卷 331-345页

作者： Nelson Amade Marco Painho tiago oliveira Universidade Catolica de Mocambique BeiraMozambique Nova Information Management School Universidade Nova de LisboaLisboaPortugal

Geographic information technologies(GIT)have matured,have become pervasive throughout many types of organizations over recent decades and gained a wide range of attention in diverse sectors of *** goal of this paper is to identify the main drivers and uses of GIT in organizations and to give an overview of GIT uses in developing countries with a focus on a case study developed for Mozambique by analyzing the results of a survey of 123 Mozambican organizations that are current GIT *** results show that the main drivers behind are compatibility,complexity,competitive pressure,donor pressure,government policy,intention to adopt,innovation,relative advantage,security,and technology *** of the public and private sectors use GIT for customer/resource/risk management,decision support,education,research,monitoring,prediction,simulation,suitability analysis,sustainability,use and access.

关键词： Geographic information technologies organizations remote sensing GPS geographic information systems Mozambique

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Changes on Anuran Tadpole Functional Diversity along an Environmental Gradient at the Southernmost Atlantic Rainforest Remnant

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Asian Herpetological Research 2020年第1期11卷 63-70页

作者： Victor mendes LIPINSKI Andre Passaglia SCHUCH tiago Gomes dos SantOS Post Graduation Program of Animal Biodiversity Federal University of Santa MariaLaboratory of HerpetologyDepartment of BiologyAv.Roraima no 1000 building 17room 1140Camobi97105-900Santa MariaRSBrazil Universidade Federal do Pampa Av.Antonio Trilha1847Centro973000000 Sao GabrielRSBrasil Southern Regional Space Research Center CRS/INPE-MCTIP.O.Box 5021room 104197110-970Santa MariaRSBrazil

For decades the ecologists are using the same methods in order to determine the environmental health of a community,however,the crescent need on defining how these processes act,triggered the development of new methods that could classify the organisms and their function at the *** we used the anuran larvae to understand the effects of an environmental gradient on the structure and organization of the anuran assemblages along it,and to access in a realistic form,the actual state of preservation of the la rgest remnant of Atlantic Rainforest on the Southernmost portion of *** found that despite the higher diversity of species and the conservation unit status of the place,the ecosystem itself is still in danger,given the low number of functional groups and thus a higher number of ecosystem services that can be lost.

关键词： Anuran ecosystem function conservation unities tadpoles

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Epigenetic regulation of TP53 is involved in prostate cancer radioresistance and DNA damage response signaling

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Signal Transduction and Targeted Therapy 2023年第11期8卷 5404-5416页

作者： Catarina Macedo-Silva Vera Miranda-Gonçalves Nuno tiago Tavares Daniela Barros-Silva Joana Lencart João Lobo Ângelo oliveira Margareta PCorreia Lucia Altucci Carmen Jerónimo Cancer Biology&Epigenetics Group Research Center of IPO Porto(CI-IPOP)/CI-IPOP@RISE(Health Research Network)Portuguese Oncology Institute of Porto(IPO-Porto)/Porto Comprehensive Cancer Center Raquel Seruca(Porto.CCC)R.Dr.António Bernardino de Almeida4200-072PortoPortugal department of Precision Medicine University of Campania“Luigi Vanvitelli”80138NaplesItaly department of Pathology and Molecular Immunology ICBAS-School of Medicine&Biomedical SciencesUniversity of PortoR.Jorge de Viterbo Ferreira 2284050-313PortoPortugal Medical Physics Radiobiology and Radiation Protection Group-Research Center of IPO Porto(CI-IPOP)/CI-IPOP@RISE(Health Research Network)Portuguese Oncology Institute of Porto(IPO-Porto)/Porto Comprehensive Cancer Center Raquel Seruca(Porto.CCC)R.Dr.António Bernardino de Almeida4200-072PortoPortugal department of Medical Physics Portuguese Oncology Institute of Porto4200-072PortoPortugal department of Pathology Portuguese Oncology Institute of PortoPortoPortugal department of Radiation Oncology Portuguese Oncology Institute of PortoPortoPortugal BIOGEM Molecular Biology and Genetics Research Institute83100AvellinoItaly IEOS Institute of Endocrinology and Oncology80100NaplesItaly

External beam radiotherapy(RT)is a leading first-line therapy for prostate cancer(PCa),and,in recent years,significant advances have been ***,RT resistance can arise and result in long-term recurrence or disease progression in the worst-case ***,making crucial the discovery of new targets for PCa ***,we generated a radioresistant PCa cell line,and found p53 to be highly expressed in radioresistant PCa cells,as well as in PCa patients with recurrent/disease progression submitted to *** dissection revealed that RT could promote p53 expression via epigenetic ***,a decrease of H3K27me3 occupancy at TP53 gene promoter,due to increased KDM6B activity,was observed in radioresistant PCa ***,p53 is essential for efficient DNA damage signaling response and cell recovery upon stress induction by prolonged fractionated ***,KDM6B inhibition by GSK-J4 significantly decreased p53 expression,consequently attenuating the radioresistant phenotype of PCa cells and hampering in vivo 3D tumor ***,this work contributes to improve the understanding of p53 as a mediator of signaling transduction in DNA damage repair,as well as the impact of epigenetic targeting for PCa radiosensitization.

关键词： TP53 damage cancer

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Microbial enzymatic stoichiometry and the acquisition of C, N,and P in soils under different land-use types in Braziliansemiarid

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Soil Ecology Letters 2023年第3期5卷 101-108页

作者： Erika Valente de Medeiros Érica de oliveira Silva Gustavo Pereira Duda Mario Andrade Lira Junior Uemeson Josédos Santos Claude Hammecker Diogo Paes da Costa Fabio Fernando Araujo Arthur Prudêncio de Araujo Pereira Lucas William mendes Ademir Sergio Ferreira Araujo Laboratory of Microbiology and Enzymology-LEMA Federal University of Agreste PernambucoGaranhuns 55292-270Brazil Federal Rural University of Pernambuco Rua Dom Manuel de Medeiross/nDois Irmãos52171-900RecifeBrazil Soil-Agrosystem-Hydrosystem Interaction Lab-LISAH Place Pierre Viala234060 MontpellierFrance Universidade do Oeste Paulista Presidente PrudenteSPBrazil departamento de Ciência Do Solo Universidade Federal Do CearáFortalezaCEBrazil Center for Nuclear Energy in Agriculture University of Sao PauloPiracicabaSPBrazil Soil Quality Lab Agricultural Science CenterFederal University of PiauíTeresinaPI 60049-550Brazil

This study hypothesized that different land-use affect the microbial enzymatic stoichiometry and C-,N-,and P-acquisition in Brazilian semiarid ***,the enzymesβ-glucosidase(C-acquiring enzyme),urease(N-acquiring enzyme),and acid phosphatase(P-acquiring enzyme)were assessed in soil samples collected at 0−5 and 5−10 cm depth from a tropical dry forest,a protected area with Angico,a protected area with Ipê,scrub area,and an agricultural area with *** values of C-,N-,and P-acquiring enzymes were used to calculate the enzymatic C:N,C:P,and N:P *** values of C:P and N:P ratios were higher at 0−5 cm depth,while no significant variation,between soil depth,was observed for C:N *** values of C-and N-acquiring enzymes were higher at 0−5 cm in tropical dry forest areas and Angico forest,*** all land use types,the values of vectors L and A were higher than 1°and 45°,*** study showed that both land-use and soil depth influence the enzymatic stoichiometry,showing higher values of C-and N-acquiring enzymes in native and protected forests at soil surface.

关键词： C:N:P stoichiometry tropical forests soil depth Luvisols

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Production and quality of eucalyptus mini-cuttings using kaolin-based particle films

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Journal of Forestry Research 2021年第3期32卷 953-965页

作者： Maria de Fátima de Castro oliveira Diego Pereira Santos Karolline Sena Figueredo Fabrício de oliveira Reis tiago Massi Ferraz Heder Braun Eliemar Campostrini Fábio Afonso Mazzei Moura de Assis Figueiredo Graduate Program in Agriculture and Environment Centro de Estudos Superiores de BalsasState University of MaranhaoPraca Goncalves Diass/nCentro65800-000 BalsasMABrazil Enraize-E.M.Figueredo Ind.e Com.de Produtos Florestais Br 222Km 09Lote 52Margem Esquerda S/n:Chac.Belo HorizonteZona RualAcailandiaMABrazil Centro de Ciências Agrárias State University of MaranhaoAv.Lourenco Vieira da Silva1000Jardim Sao Cristovao65055-310 Sao LuísMABrazil CCTA Northern Rio de Janeiro State UniversityAv.Alberto Lamego200028013-602 Campos dos GoytacazesRJBrazil

Considering the expansion of forest plantations over the Brazilian territory and the imminent increase in air temperatures due to global warming,the search for technologies that ensure high levels of productivity and high quality plants in clonal nurseries is *** kaolin-based particle films(KBPF)has been used as a physical barrier to reduce the negative effects of excessive solar radiation and adverse *** effects of KBPF on production and physiological quality of eucalyptus mini-cuttings were evaluated during two different seasons.A randomized block design was used,consisting of five treatments and four *** concentrations(0,3%,5%,7%,and 10%)were tested here and six weekly replicates of each concentration was *** different kaolin concentrations and seasonal variations resulted in a quadratic response of the leaf SPAD reading during both daily evaluation *** applications resulted in a quadratic response of photochemical efficiency in the morning period,and an increasing specific leaf weight linear response,and during the dry season,the different kaolin concentrations resulted in a bud length quadratic *** results indicated that the kaolin application maintained the production and yield index statistically equal between weekly KBPF applications,improving photochemical efficiency,leaf thickness,SPAD reading,and bud *** use of KBPF could reduce the intervals between collections of mini-cuttings and increase nursery yields in environments that present high temperatures.

关键词： Photoprotector Ecophysiology Forestry Clonal propagation

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