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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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Effectiveness of BNT162b2 and CoronaVac vaccines against omicron in children aged 5 to 11 years

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World Journal of Pediatrics 2023年第10期19卷 949-960页

作者： Eduardo A.oliveira Maria Christina L.oliveira Ana Cristina Simões e silva Enrico A.Colosimo Robert H.Mak Mariana A.Vasconcelos Ludmila R.silva Daniella B.Martelli Clara C.Pinhati Hercílio Martelli-Júnior Department of Pediatrics Health Sciences Postgraduate ProgramSchool of MedicineFederal University of Minas Gerais(UFMG)R.Engenheiro Amaro Lanari 389/501Belo HorizonteMG30130-100Brazil Department of Statistics Federal University of Minas GeraisBelo HorizonteMGBrazil Department of Pediatrics Rady Children’s HospitalUniversity of CaliforniaLa JollaSan DiegoCAUSA Health Science/Postgraduate Program in Nursing.School of Nursing Federal University of Minas Gerais(UFMG)Belo HorizonteMG30130-100Brazil Health Science/Primary Care Postgraduate Program State University of Montes Claros(Unimontes)Montes ClarosMG39401-089Brazil

Background This study aimed to estimate vaccine effectiveness(VE)against omicron variant infection and severe corona virus disease 2019(COVID-19)in children aged 5–11 years hospitalized with acute respiratory *** A test-negative,case–control analysis was conducted from February 2022 to June *** enrolled 6950 eligible children,including 1102 cases and 5848 *** was calculated after immunization with one and two doses of BNT162b2 or *** outcomes were hospitalization with acute respiratory symptoms and detection of severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)infection and severe *** adjusted odds ratio for the association of prior vaccination and outcomes was used to estimate *** For fully vaccinated children,the overall estimated VE against hospitalization with SARS-CoV-2 infection was 42%[95%confidence interval(CI)26 to 54].VE peaked at 29–42 days(67%,95%CI 40%to 82%)and then declined to 19%(95%CI,−20%to 45%)at 57–120 days after the second *** BNT162b2 vaccine had a similar VE against hospitalization with SARS-CoV-2 infection(45%,95%CI,20 to 61)compared to the CoronaVac vaccine(40%,95%CI,17%to 56%).Among cases,56(5%)children died;53(94.6%)were not fully *** cases,the two-dose schedule effectiveness against ICU admission,need for invasive ventilation,severe illness,and death were 10%(95%CI,−54%–45%),22%(95%CI−70%–68%),12%(95%CI,−62%–52%),and 16%(95%CI,−77%–75%),*** For hospitalized children aged 5–11 years during the omicron-predominant period in Brazil,two doses of both vaccines had moderate effectiveness against hospitalization with acute respiratory symptoms and SARS-CoV-2 infection and offered limited protection against endpoints of COVID-19 severity.

关键词： Children COVID-19 Effectiveness Omicron Vaccine

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Diversity of the Formicidae (Hymenoptera) carrion communities in Lisbon (Portugal): preliminary approach as seasonal and geographic indicators

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Forensic Sciences Research 2018年第1期3卷 65-73页

作者： António Neto-silva Ricardo Jorge Dinis-oliveira Catarina Prado e Castro Department of Public Health Forensic Sciences and Medical EducationFaculty of MedicineUniversity of PortoPortoPortugal Department of Sciences IINFACTS-Institute of Research and Advanced Training in Health Sciences and TechnologiesUniversity Institute of Health Sciences(IUCS)CESPUCRLGandraPortugal UCIBIO REQUIMTE-Laboratory of ToxicologyDepartment of Biological SciencesFaculty of PharmacyUniversity of PortoPortoPortugal Department of Life Sciences Centre for Functional EcologyUniversity of CoimbraCoimbraPortugal

The value of the Formicidae (Insecta,Hymenoptera) community in forensic investigations is poorly studied in *** order to better understand the structure and dynamics of this group of insects in cadavers and their putative value in forensic investigations,studies were carried out in Lisbon area during one *** carcasses were used as a model of human *** entomofauna attracted to the carcasses was collected over a period of about 2 months in each season of the *** collection of ants was performed at regular intervals,daily in the first 23 days and then with intervals of 2,3 or 5 days until the end of the *** stages of cadaveric decomposition were recognized with the ants being present in all of *** hundred and nine specimens were captured: 7 in autumn,6 in winter,90 in spring and 206 in *** specimens belong to three subfamilies and seven different *** of them had never been mentioned before as being associated to cadavers in this geographical *** and summer had the greater diversity of species and a larger number of *** luteus was the dominant species in spring and Tapinoma nigerrimum in *** the information of other similar studies carried out in the Iberian Peninsula,the sarcosaprophagous Formicidae community found in Lisbon is unique and different from other studied locations,which supports the need to perform regional *** results shown that ants do not present a definite pattern of succession,but some species have the potential to be seasonal or geographic indicators.

关键词： Forensic science forensic entomology Formicidae sarcosaprophagous community decomposition process postmortem interval seasonal study

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Neoarchean atmospheric chemistry and the preservation of S-MIF in sediments from the São Francisco Craton

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Geoscience Frontiers 2022年第5期13卷 207-226页

作者： Alice Bosco-Santos William Patrick Gilhooly Ⅲ Paola de Melo-silva Fotios Fouskas Amaury Bouyon João Gabriel Motta Mauricio Rigoni Baldim Wendell Fabricio-silva Pascal Philippot Elson Paiva oliveira Department of Geology and Natural Resources University of CampinasCampinasSP 13083855Brazil Department of Earth Sciences Indiana University-Purdue University IndianapolisIndianapolisINUSA Institut de Physique du Globe de Paris Universitéde ParisCNRS-UMR 715475005 Paris Cedex 05France Vizlab-X-Reality and GeoInformatics Lab UNISINOSSão LeopoldoRS 93022-750Brazil Geosciences Department Federal University of Mato GrossoCuiabáMTBrazil Geosciences Institute University of BrasiliaBrasíliaDistrito Federal 70910-900Brazil Institute of Geography and Geology University of Würzburg97074 WürzburgGermany Géosciences Montpellier Universitéde MontpellierCNRSUniversitédes AntillesMontpellierFrance Institute of Astronomy Geophysicsand Atmospheric SciencesUniversity of São PauloRua do Matão 1226São PauloBrazil

Sulfur mass-independent fractionation(S-MIF)preserved in Archean sedimentary pyrite is interpreted to reflect atmospheric *** ranges in Δ^(33)S that expanded into larger fractionations leading up to the Great Oxygenation Event(GOE;2.45–2.2 Ga)are disproportionately represented by sequences from the Kaapvaal and Pilbara *** patterns of S-MIF attenuation and enhancement may differ from the timing and magnitude of minor sulfur isotope fractionations reported from other cratons,thus obscuring local for global sulfur cycling *** expanding the Δ^(33)S record to include the relatively underrepresented São Francisco Craton in Brazil,we suggest that marine biogeochemistry affected S-MIF preservation prior to the *** an early Neoarchean sequence(2763–2730 Ma)from the Rio das Velhas Greenstone Belt,we propose that low δ^(13)Corg(<-30‰)and dampened Δ^(33)S(-0.4‰to-0.7‰)in banded iron formation reflect the marine diagenetic process of anaerobic methane *** overlying black shale(TOC up to 7.8%)with higher δ^(13)Corg(-33.4‰to-19.2‰)and expanded Δ^(33)S(2.3‰±0.8‰),recorded oxidative sulfur cycling that resulted in enhance preservation of S-MIF input from atmospheric sources of elemental *** sequence culminates in a metasandstone,where concomitant changes to more uniform δCorg(-30‰to--25‰),potentially associated with the RuBisCO I enzyme,and near-zero Δ^(33)S(-0.04‰to 0.38‰)is mainly interpreted as evidence for local oxygen *** placed in the context of other sequences worldwide,the Rio das Velhas helps differentiate the influences of global atmospheric chemistry and local marine diagenesis in Archean biogeochemical *** data suggest that prokaryotic sulfur,iron,and methane cycles might have an underestimated role in pre-GOE sulfur minor isotope records.

关键词： S-MIF preservation Archean atmospheric chemistry GOE São Francisco Craton

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Genomic regions and pathways associated with gastrointestinal parasites resistance in Santa Inês breed adapted to tropical climate

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Journal of Animal Science and Biotechnology 2018年第1期9卷 35-50页

作者： Mariana Piatto Berton Rafael Medeiros de oliveira silva Elisa Peripolli Nedenia Bonvino Stafuzza Jesús Fernández Martin Maria Saura álvarez Beatriz Villanueva Gavina Miguel Angel Toro Georgget Banchero Priscila silva oliveira Joanir Pereira Eler Fernando Baldi José Bento Sterman Ferraz Departamento de Zootecnia Faculdade de Ciências Agrárias e VeterináriasUniversidade Estadual PaulistaVia de acesso Prof.Paulo Donato Castellane sno Jaboticabal SP CEP 14884 900 Brazil Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria INIA Crta.de la Coruna km75 28040 Madrid Spain Departamento de Producción Agraria School of AgriculturalFood and Byosystems EngineeringUniversisdad Politécnica de MadridCampus Ciudad Universitaria Avda.Complutense 3-Avda.Puerta Hierro 28040 Madrid Spain Instituto Nacional de Investigación Agropecuária(INIA) Ruta 50 Kin. 12 Colonia Uruguay Faculdade de Zootecnia e Engenharia de Alimentos Nucleo de Apoio à Pesquisa em Melhoramento AnimalBiotecnologia e TransgeniaUniversidade de Sao Paulo Rua Duque de Caxias Norte 225 Pirassununga SP CEP 13635 900Brazil

Background： The aim of this study was to estimate variance components and to identify genomic regions and pathways associated with resistance to gastrointestinal parasites, particularly Haemonchus contortus, in a breed of sheep adapted to tropical climate. Phenotypes evaluations were performed to verify resistance to gastrointestinal parasites, and were divided into two categories： i） farm phenotypes, assessing body condition score（BCS）, degree of anemia assessed by the famacha chart（FAM）, fur score（FS） and feces consistency（FC）; and ii） lab phenotypes,comprising blood analyses for hematocrit（HCT）, white blood cell count（WBC）, red blood cell count（RBC）,hemoglobin（HGB）, platelets（PLT） and transformed（log10） egg per gram of feces（EPG_（log））. A total of 576 animals were genotyped with the Ovine SNP12k Bead Chip（Illumina, Inc.）, that contains 12,785 bialleleic SNP markers. The variance components were estimated using a single trait model by single step genomic BLUP ***： The overall linkage disequilibrium（LD） mean between pairs of markers measured by r2 was 0.23. The overall LD mean between markers considering windows up to 10 Mb was 0.07. The mean LD between adjacent SNPs across autosomes ranged from 0.02 to 0.10. Heritability estimates were low for EPG_（log）（0.11）, moderate for RBC（0.18）, PLT（0.17） HCT（0.20）, HGB（0.16） and WBC（0.22）, and high for FAM（0.35）. A total of 22, 21, 23, 20, 26, 25 and 23 windows for EPG_（log）for FAM, WBC, RBC, PLT, HCT and HGB traits were identified, respectively. Among the associated windows, 10 were shown to be common to HCT and HGB traits on OAR1, OAR2, OAR3, OAR5, OAR8 and ***： The traits indicating gastrointestinal parasites resistance presented an adequate genetic variability to respond to selection in Santa Inês breed, and it is expected a higher genetic gain for FAM trait when compared to the others. The level of LD estimated for markers separated by less than 1 Mb indicated that the Ovine SNP12k Bead Chip m

关键词： Gwas Linkage disequilibrium arasites resistance Santa Inês breed

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Exploring overweight and obesity beyond body mass index:A body composition analysis in people with and without patellofemoral pain

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Journal of Sport and Health Science 2023年第5期12卷 630-638,F0003页

作者： Amanda Schenatto Ferreira Benjamin F Mentiplay Bianca Taborda Marcella Ferraz Pazzinatto Fabio Mıcolis de Azevedo Danilo De oliveira silva Department of Physiotherapy School of Science and TechnologySao Paulo State University(UNESP)Presidente Prudente 19060-900Brazil La Trobe Sport and Exercise Medicine Research Centre School of Allied HealthHuman Services and SportLa Trobe UniversityMelbourneVIC 3086Australia

Background:We compared body mass index(BMI),body fat,and skeletal muscle mass between(1) a mixed-sex nonathletic cohort of people with patellofemoral pain(PFP) and pain-free people,and(2) a nonathletic cohort of people with PFP and pain-free people subgrouped by sex(i.e.,men and women with PFP ***-free men and women).Methods:This cross-sectional study included 114 people with PFP(71 women,43 men) and 54 pain-free controls(32 women,22 men).All participants attended a single testing session to assess body composition measures,which included BMI,percentage of body fat(%BFBioimpedance),and skeletal muscle mass(both assessed by bioelectrical impedance analysis),and percentage of body fat(%BFskinfoid)(assessed by skinfold caliper analysis).A one-way univariate analysis of covariance(age and physical activity levels as covariates) was used to compare body composition measures between groups(i.e.,PFP ***-free group;women with PFP ***-free women;men with PFP ***-free men).Results:Women with PFP presented significantly higher BMI,%BFBiompedance,and %BFSkinfold,and lower skeletal muscle mass compared to pain-free women(p≤0.04;effect size:-0.47 to 0.85).Men with PFP and men and women combined had no differences in BMI,%BFBioimpedance,%BFSkinfold,and skeletal muscle mass compared to their respective pain-free groups(p> 0.05).Conclusion:Our findings indicate that BMI and body composition measures should be considered as part of the evaluation and management of people with PFP,especially in women,who have demonstrated higher BMI and body fat and lower skeletal muscle mass compared to pain-free *** studies should not assess body composition measures in a mixed-sex population without distinguishing men participants from women participants.

关键词： Body composition Body mass index Patellofemoral pain syndrome Skinfold thicknessTagedEnd

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Overweight and obesity in young adults with patellofemoral pain:Impact on functional capacity and strength

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Journal of Sport and Health Science 2023年第2期12卷 202-211页

作者： Amanda Schenatto Ferreira Benjamin FMentiplay Bianca Taborda Marcella Ferraz Pazzinatto Fábio Mícolis de Azevedo Danilo de oliveira silva Department of Physiotherapy School of Science and TechnologySao Paulo State University(UNESP)Presidente Prudente19060-900Brazil La Trobe Sport and Exercise Medicine Research Centre School of Allied HealthHuman Services and SportLa Trobe UniversityMelbourneVIC 3086Australia

Purpose:This study aimed to(a)investigate the proportion of overweight/obesity in a cohort of young adults with patellofemoral pain(PFP)and(b)explore the association of body mass index(BMI),body fat,and lean mass with functional capacity and hip and knee strength in people with ***:We included a mixed-sex sample of young adults(18-35 years old)with PFP(n=100).Measurements for BMI,percentage of body fat,and lean mass(assessed by bioelectrical impedance)were *** capacity was assessed by the Anterior Knee Pain Scale,plank test,and single-leg hop *** of the knee extensors,knee flexors,and hip abductors was evaluated isometrically using an isokinetic *** proportion of overweight/obesity was calculated based on *** association between BMI,body fat,and lean mass and functional capacity and strength was investigated using partial correlations,followed by hierarchical regression analysis,adjusted for covariates(sex,bilateral pain,and current pain level).Results:A total of 38%of our cohort had their BMI categorized as overweight/*** BMI was associated with poor functional capacity(ΔR^(2)=0.06-0.12,p<0.001)and with knee flexion strength only(ΔR^(2)=0.04,p=0.030).Higher body fat was associated with poor functional capacity(ΔR^(2)=0.05-0.15,p≤0.015)and reduced strength(ΔR^(2)=0.15-0.23,p<0.001).Lower lean mass was associated with poor functional capacity(ΔR^(2)=0.04-0.13,p≤0.032)and reduced strength(ΔR^(2)=0.29-0.31,p<0.001).Conclusion:BMI,body fat,and lean mass should be considered in the assessment and management of young people with PFP because it may be detrimental to function and strength.

关键词： Body fat distribution Body mass index Patellofemoral pain syndrome Torque

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Clinical and pathological characterization of epstein-barr virus-associated gastric carcinomas in portugal

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World Journal of Gastroenterology 2017年第40期23卷 7292-7302页

作者： Joana Ribeiro Andreia oliveira Mariana Malta Claudia oliveira Fernanda silva Ana Galaghar Luís Pedro Afonso Maria Cassiano Neves Rui Medeiros Pedro Pimentel-Nunes Hugo Sousa Molecular Oncology and Viral Pathology Group Portuguese Oncology Institute of Porto Faculty of Medicine of Porto University Department of Pathology Portuguese Oncology Institute of Porto Medical Oncology Department Portuguese Oncology Institute of Porto Instituto CUF de Oncologia Virology Service Portuguese Oncology Institute of Porto Research Department-Portuguese League Against Cancer(Liga Portuguesa Contra o Cancro-Núcleo Regional do Norte) Gastroenterology Service Portuguese Oncology Institute of Porto CINTESIS-Center for Health Technology and Services Research(Centro de Investigacao Médica Faculdade de Medicina da Universidade do Porto)

AIM To determine the prevalence of epstein-barr virus(eb V)-associated gastric carcinomas in the North Region of Portugal and to study its clinicopathological characteristics. METHODS We have performed a retrospective study including a total of 179 consecutive patients with gastric cancer(GC) submitted to gastrectomy during 2011 at the Portuguese Oncology Institute of Porto. Clinical and pathological data was collected from individual clinical records and inserted on a database with unique codification. Tumour tissues were collected from the institutional tumour bank. eb V was detected by in situ hybridization for the detection of eb V-encoded small RNAs(ebe Rs) and eb V latent proteins(LMP1 and LMP2 A) were detected by *** The analysis showed that eb V-associated gastric carcinomas(eb Va GC) represents 8.4%(15/179) of all GC cases, with a significant differential distribution among histological types(P < 0.001): 100%(3/3) of medullary carcinomas, 100%(1/1) of adenosquamous carcinoma, 8.7%(8/92) of tubular adenocarcinomas, 8.0%(2/25) of mixed carcinomas and 2%(1/51) in poorly cohesive carcinomas. The analysis revealed a higher predominance of eb Va GC in the upper third and middle(cardia, fundus and body) of the stomach(P = 0.041), a significant lower number of regional lymph nodes invasion(P = 0.025) and a tendency for better prognosis(P = 0.222). eb V latent protein expression revealed that all eb Va GC cases were LMP1-negative, nevertheless 6 cases(40%) expressed LPM2 A, which reveals that these cases show a distinct eb V-Latency profile(latency II-like).CONCLUSION eb Va GC represents 8.4% of all GC in the North Region of Portugal. The eb V-infected patients have specific clinic-pathological features that should be further explored to develop new strategies of management and treatment.

关键词： Gastric cancer Epstein-barr virus Prevalencel Epstein-barr virus-associated gastric carcinomas

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Evaluation of physicochemical properties as supporting information on quality control of raw materials and veterinary pharmaceutical formulations

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Journal of Pharmaceutical Analysis 2018年第3期8卷 168-175页

作者： Sara da silva Anacleto Marcella Matos Cordeiro Borges Hanna Leijoto de oliveira Andressa Reis Vicente Eduardo Costa de Figueiredo Marcone Augusto Leal de oliveira Barbara Juliana Pinheiro Borges Marcelo Antonio de oliveira Warley de Souza Borges Keyller Bastos Borges Departamento de Ciencias Naturals Universidade Federal de Sao Joao del-Rei Campus Dom Bosco Praca Dora Helvecio 74 Fabricas 36301-160 Sao Joao del-Rei Minas Gerais Brazil Departamento de Quimica Universidade Federal do Espirito Santo Avenida Fernando Ferrari 514 Goiabeiras 29075-910 Vitdria Espirito Santo Brazil Laboratorio de Analise de Toxicantes e Farmacos Faculdade de Ciencias Farmaceuticas Universidade Federal de Alfenas Rua Gabriel Monteiro da Silva 700 Centro 37130-000 Alfenas Minas Gerais Brazil Departamento de Quimica Universidade Federal de Juiz de Fora Rua Jose Lourenco Kelmer s/n 36036-330 Juiz de Fora Minas Gerais Brazil Centro de Ciencias da Saude Universidade Federal do Espirito Santo Avenida Marechal Campos 1468 Maruipe 29.043-900 Vitori Espirito Santo Brazil Centro Universitario Norte do Espirito Santo Universidade Federal do Espirito Santo Br 101 Norte Km 67 Sao Mateus Espirito Santo Brazil

This study aimed to show that the physicochemical proprieties obtained by Fourier transform infrared spectroscopy （FTIR）, thermogravimetry （TG）, and scanning electronic microscopy （SEM） can be useful tools for evaluating the quality of active pharmaceutical ingredients （APIs） and pharmaceutical products. In addition, a simple, sensitive, and efficient method employing HPLC-DAD was developed for simulta- neous determination of lidocaine （LID）, ciprofloxacin （CFX） and enrofloxacin （EFX） in raw materials and in veterinary pharmaceutical formulations. Compounds were separated using a Gemini Cm （250 mm×4.6 mm, 5μm） Phenomenex column, at a temperature of 25℃, with a mobile phase containing 10 mM of phosphoric acid （pH 3.29）： acetonitrile （85.7：14.3, v/v） and a flow rate of 1.5 mL/min. Physicochemical characterization by TG, FTIR, and SEM of raw materials of LID, CFX, and EFX provided information useful for the evaluation, differentiation, and qualification of raw materials. Finally, the HPLC method was proved to be useful for evaluation of raw material and finished products, besides satisfying the need for an analytical method that allows simultaneous determination of EFX, CFX, and LID, which can also be extended to other matrices and applications.

关键词： HPLC Physicochemical characterization Quality control Veterinary pharmaceutical formulation Raw material

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Metastasis-associated lung adenocarcinoma transcript 1 molecular mechanisms in gastric cancer progression

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World Journal of Gastrointestinal Oncology 2023年第9期15卷 1520-1530页

作者： Daniel Mateus de oliveira Batista Jessica Manoelli Costa da silva Carolina de oliveira Gigek Marilia de Arruda Cardoso Smith Paulo Pimentel de Assumpcao Danielle Queiroz Calcagno Nucleo de Pesquisas em Oncologia Universidade Federal do ParaBelem 66073-000ParaBrazil Departamento de Patologia Universidade Federal de São PauloSao Paulo 04023-062São PauloBrazil Disciplina de Genetica Departamento de Morfologia e GeneticaUniversidade Federal de São PauloSão Paulo 04023-900Sao PauloBrazil

Gastric cancer(GC)remains among the most common cancers worldwide with a high mortality-to-incidence *** evidence suggests that long noncoding RNAs(lncRNAs)are involved in gastric *** transcripts are longer than 200 nucleotides and modulate gene expression at multiple molecular levels,inducing or inhibiting biological processes and ***-associated lung adenocarcinoma transcript 1(MALAT1)is one of the best-studied lncRNAs with comprehensive actions contributing to cancer *** lncRNA regulates gene expression at the transcriptional and posttranscriptional levels through interactions with microRNAs and *** the present review,we discussed the molecular mechanism of MALAT1 and summarized the current knowledge of its expression in ***,we highlighted the potential use of MALAT1 as a biomarker,including liquid biopsy.

关键词： Long noncoding RNA Gastric carcinogenesis Transcriptional levels Posttranscriptional levels Prognostic biomarker Liquid biopsy

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