检索结果-南通市图书馆

Blackberry jam fruit(Randia formosa(Jacq.)***):An Amazon superfruit with in vitro neuroprotective properties

Food Bioscience 2022年第6期50卷 944-953页

作者： Giovanna Nascimento de Mello e Silva Edson Silvio Batista Rodrigues Isaac Yves lopes de Macêdo Henric Pietro Vicente Gil Hericles Mesquita Campos Paulo César Ghedini Lidya Cardozo da Silva Erica Aparecida Batista Giovanna lopes de Araújo Boniek Gontijo Vaz Tânia Aparecida Pinto de Castro ferreira Renê Oliveira do Couto Eric de Souza Gil LAFAM – Laboratory for Pharmaceutical and Environmental Analysis Faculdade de FarmáciaUniversidade Federal de GoiásGoiâniaGoiásBrazil DFar – Pharmacology Department Instituto de Ciências BiológicasUniversidade Federal de GoiásGoiâniaGoiásBrazil LaCEM – Laboratory of Chromatography and Mass Spectometry Instituto de QuímicaUniversidade Federal de GoiásGoiâniaGoiásBrazil LANAL – Laboratory of Nutrition and Food Analysis Faculdade de NutriçãoUniversidade Federal de GoiásGoiâniaGoiásBrazil Universidade Federal de São João del-Rei (UFSJ) Campus Centro-Oeste Dona Lindu (CCO)DivinópolisMinas GeraisBrazil

We report on the bromatological profile,the preliminary phytochemical composition,the antioxidant capacity,and the in vitro neuroprotective effects of Blackberry Jam *** were the major macronutrients(20 g/100 g)in both pulp and seeds(36.5 g/100g),that also possess a low lipid content(0.1 g/100 g and 0.7 g/100,and 86 Kcal/100 g,respectively).Eleven compounds including a diterpenoid dimmer,a lactone,coumarins,sphingosines,and flavonoids have been identified for the first time in the pulp and seeds of *** by mass *** electrochemical index of the hydroalcoholic extract of the pulp(BJFp respectively)and an appreciable energy value(89 Kcal/100 g)was around 6.8μA/V and two reversible cathode peaks were observed up to 0.5 V,thus shedding light to its antioxidant capacity,which was also evidenced by the DPPH•and ABTS+radical scavenging assays(IC50 of 3.30±0.23μg/mL and 18.17±1.21μg/mL,respectively).The BJFp protected against oxidative stress in vitro by significantly decreasing both the lipid peroxidation and contents of carbonyl proteins in a dose-dependent manner in murine brain cells treated with ***,the BJFp increased the superoxide dismutase(EC50 of 11.99±0.35μg/mL)and catalase(EC50 of 69.53±0.43μg/mL)*** BJFp markedly decreased both the in vitro acetylcholinesterase(IC50 of 227.9±0.34μg/mL)and butyrylcholinesterase(IC50 of 8.77±0.40μg/mL)***,besides being a great source of energy,this Amazon superfruit may be promising for enhancing the treatment outcomes of ailments related to oxidative stress,which require further in vivo investigation.

关键词： Antioxidants Cholinesterase inhibitors Electrochemistry Functional foods Phenolic compounds

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

On the Thermodynamical Black Hole Stability in the Space-Time of a Global Monopole in f(R)-Gravity

引用

Journal of High Energy Physics, Gravitation and Cosmology 2019年第3期5卷 587-611页

作者： Francisco Bento Lustosa Maria Emilia Xavier Guimaraes Cristine Nunes ferreira Joaquim lopes Neto Jose Abdalla Helayel-Neto Departamento de Fsica Teorica Instituto de FsicaUniversidade do Estado do Rio de JaneiroRio de JaneiroBrazil Instituto de Fsica Universidade Federal FluminenseCampus da Praia VermelhaNiteroiBrazil Nucleo de Estudos em Fsica Instituto Federal de Educacao Ciencia e Tecnologia FluminenseRio de JaneiroBrazil Instituto de Fsica Universidade Federal do Rio de JaneiroRio de JaneiroBrazil Centro Brasileiro de Pesquisas Fsicas Rio de JaneiroBrazil

In this work, we re-assess a class of black hole solutions in a global monopole spacetime in the framework of an f(R)-gravity model. Our main line of investigation consists in considering a region close enough to the black hole, but such that the weak field approximation is still valid. The stability of the black hole is studied in terms of its thermodynamical properties, with the radial coordinate written as a power-law function with the status of the main factor underneath the stability of the model. We obtain the explicit expressions for the thermodynamical quantities of the black hole as functions of the event horizon, by considering both the Hawking and the local temperatures. The phase transitions that may occur in this system, including the Hawking-Page phase transition, are inspected with particular attention. We work out and contemplate a solution of special interest in which one of the parameters is related to the cosmological constant. Our main result sets out to establish a comparison between both the Hawking and the local formalisms for the black hole in the framework of the f(R)-gravity in the particular space-time adopted here.

关键词： Black Hole f(R)-Gravity Hawking Temperature Global Monopole Cosmological Constant

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Agronomic Performance of Cultivars of Upland Rice in the Southern of the Region of Rondonia,Brazil

引用

Agricultural Sciences 2014年第6期5卷 513-518页

作者： Edimar Rodrigues Soares Robertt Fernandes Laercio da Silva Londero Diego lopes dos Santos Samara Cristina Sampaio Correa Everton augusto Sampaio Correa Remy Carvalho dos Santos Ariel Pereira Gomes Leandro Galon Fabiana ferreira Pires Rosilene da Silva Goncalves Department of Soil Science Sao Paulo State University(UNESP)JaboticabalBrazil Department of Agronomy Federal Institute of Education Science and Technology of Rondonia(IFRO)Colorado do OesteBrazil Department of Agronomy College Amazon(FAMA)VilhenaBrazil Agronomist Federal University Mato Grosso(UFMT)CuiabáBrazil Department Herbology Federal University of the Southern Border South(UFFS)ErechimBrazil

The upland rice is grown in most Brazilian states. However, in many of them the yield obtained is low. The choice of cultivar more suited to a particular environment can contribute to increased productivity of this crop. This research aimed to evaluate the performance of a hybrid cultivar of upland rice (Ecco) and five conventional cultivars (BRS Monarca, BRS Primavera, AN Cambará, BRS Sertaneja and BRS MG Curinga) in two environments (Vilhena and Cerejeiras). The tests were conducted in the agricultural year 2010/2011. We evaluated the following characteristics: tillering, panicle number per unit area, number of filled grains per panicle sterile, mass of grains per panicle, 1000 grain weight, grain yield (kg·ha-1) and whole grain yield. There was no cultivar x environment interaction for all traits. Greater tillering, higher panicle number per area, higher productivity and yield of whole grains in the municipality of Cerejeiras were observed, while the highest number of sterile grains per panicle was obtained in Vilhena. The hybrid Ecco highlighted in relation to all other cultivars is in relation to tillering, panicle number per area and grain yield. The municipality of Cerejeiras is the most suitable for the cultivation of upland rice.

关键词： Oryza sativa L. Hybrid Upland Rice Genotype x Environment

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nanocellulose-based porous materials: Regulation and pathway to commercialization in regenerative medicine

引用

Bioactive Materials 2023年第11期29卷 151-176页

作者： Filipe V.ferreira Alana G.Souza Rubina Ajdary Lucas P.de Souza Jo˜ao H.lopes Daniel S.Correa Gilberto Siqueira Hernane S.Barud Derval dos S.Rosa Luiz H.C.Mattoso Orlando J.Rojas Nanotechnology National Laboratory for Agriculture(LNNA) Embrapa Instrumentation-Rua XV de Novembro1452S˜ao CarlosSP13560-979Brazil Center for Engineering Modelingand Applied Social Sciences(CECS)Federal University of ABC(UFABC)Santo Andr´eBrazil Department of Bioproducts and Biosystems School of Chemical EngineeringAalto UniversityP.O.Box 16300AaltoEspooFIN-00076Finland College of Engineering and Physical Sciences Aston Institute of Materials ResearchAston UniversityBirminghamUK Department of Chemistry Division of Fundamental Sciences(IEF)Technological Institute of Aeronautics(ITA)S˜ao Jose dos CamposSPBrazil Laboratory for Cellulose&Wood Materials Empa-Swiss Federal Laboratories for Materials Science and TechnologyÜberlandstrasse 1298600DübendorfSwitzerland Biopolymers and Biomaterials Laboratory(BIOPOLMAT) University of Araraquara(UNIARA)Araraquar114801-340S˜ao PauloBrazil Bioproducts Institute Department of Chemical&Biological EngineeringDepartment of Chemistry andDepartment of Wood ScienceThe University of British Columbi12360 East MallVancouverBCV6T 1Z3Canada

We review the recent progress that have led to the development of porous materials based on cellulose nanostructures found in plants and other resources. In light of the properties that emerge from the chemistry, shape and structural control, we discuss some of the most promising uses of a plant-based material, nanocellulose, in regenerative medicine. Following a brief discussion about the fundamental aspects of self-assembly of nanocellulose precursors, we review the key strategies needed for material synthesis and to adjust the architecture of the materials (using three-dimensional printing, freeze-casted porous materials, and electrospinning) according to their uses in tissue engineering, artificial organs, controlled drug delivery and wound healing systems, among others. For this purpose, we map the structure-property-function relationships of nanocellulose-based porous materials and examine the course of actions that are required to translate innovation from the laboratory to industry. Such efforts require attention to regulatory aspects and market pull. Finally, the key challenges and opportunities in this nascent field are critically reviewed.

关键词： Cellulose nanofibrils Cellulose nanocrystals Regenerative medicine Biomaterial Sustainable materials Green nanomaterials

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Evolution and impact of cellulose architecture during enzymatic hydrolysis by fungal cellulases

引用

Advances in Bioscience and Biotechnology 2013年第12期4卷 1095-1109页

作者： Marie Chauve Loic Barre Sandra Tapin-Lingua Denilson da Silva Perez Dominique Decottignies Serge Perez Nicolas lopes ferreira IFP Energies Nouvelles Rueil-MalmaisonFrance IFP Energies Nouvelles Rond-Point de l’Echangeur de SolaizeSolaizeFrance FCBA Pole NMADomaine UniversitaireGrenobleFrance ESRF Rue Jules HorowitzGrenobleFrance Centre de Recherches sur les Macromolecules Vegetales CNRSAffiliated with Universite de GrenobleGrenobleFrance

The enzymatic hydrolysis of cellulose is still considered as a main limiting step of the biological production of biofuels from ligno-cellulosic biomass. Glycoside hydrolases from Trichoderma reesei are currently used to produce fermentable glucose units from degradation of cellulose packed in a complex assembly of cellulose microfibrils. The present work describes the structural evolution of two prototypical samples of cellulose (a micro-crystalline cellulose and a bleached sulfite pulp) over 5 length scale orders of magnitude. The results were obtained through wide angle, small angle and ultra-small angles synchrotron X-ray scattering, completed by Small Angle Neutron Scattering and particle size analyzers. These structural evolutions were followed as a function of enzymatic conversion. The results show that whereas there is no change at the nanometer scale, drastic changes occur at micron. The observed decrease of the size of the cellulose particles is accompanied by a smoothing of the crystalline surfaces that can be explained by a two-step mechanism of the enzymatic hydrolysis.

关键词： Cellulose Cellulase Trichoderma reesei Synchrotron X-Ray Scattering Neutron Scattering Particle Size

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Spontaneous Mammary Carcinomas in Female Dogs: Association between Immunohistochemical Degrees of Neoplasia Aggressiveness and Residual Pyrethroids

引用

Open Journal of Veterinary Medicine 2012年第4期2卷 207-215页

作者： Marcia Moleta Colodel Isabelle ferreira Vera Maria Villamil Martins Alaor Aparecido Almeida Maria Denise lopes Noeme Sousa Rocha Center for Toxicological Assistance (CEATOX) Botucatu Bioscience Institute (IBB) Botucatu Brazil Department of Animal Reproduction and Veterinary Radiology School of Veterinary Medicine and Animal Science (FMVZ) Paulista State University (UNESP) Botucatu Brazil Department of Veterinary Clinics School of Veterinary Medicine and Animal Science (FMVZ) Paulista State University (UNESP) Botucatu Brazil Department of Veterinary Medicine Center for Agroveterinary Sciences (CAV) State University of Santa Catarina (UDESC) Lages Brazil

Of the tumors diagnosed in the female dogs have the highest mammary neoplasias incidence. These neoplasias can be influenced by environmental contaminants. Despite evidence of pyrethroid toxicity, carcinogenic potential has not yet been sufficiently elucidated, there is a need to investigate their involvement in mammary tumor. In previous studies, pyrethroid residues were detected in female dogs with mammary neoplasia, however was not investigate the influence of this insecticide in the genesis and aggressiveness of mammary cancer. This study aimed to investigate possible relations between pyrethroid residues and aggressiveness of mammary carcinoma in female dogs. Fifty selected female dogs were divided into five groups of 10 animals each: the Control group, female dogs without mammary neoplasia;the groups Luminal A, Luminal B, HER-2 Superexpression and Basal were constituted by female dogs that presented inguinal mammary carcinoma classified immunohistochemically. The aggressiveness of carcinomas was evaluated by immunohistochemistry (HER-2, p63, estrogen receptor). Residual concentrations of the pyrethroids from the mammary gland and fat tissue adjacent to it were determined by HPLC. Data were analyzed by Chi-Square test. Of the all animals, six presented residues of pyrethroids in mammary samples and 10 presented it in fat tissue samples. There was no statistical evidence that pyrethroids are involved in mammary carcinoma aggressiveness in female dogs.

关键词： Mammary Tumors Pyrethroids Carcinogenesis Neoplasia Aggressiveness

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Characterization of goat whey proteins and their bioactivity and toxicity assay

引用

Food Bioscience 2022年第2期46卷 833-843页

作者： Maria Isabel ferreira Campos Paula Perazzo de Souza Barbosa Laura Junqueira Camargo Luciano Da Silva Pinto Bianca Mataribu Catarina Serr˜ao Luis Fernando Marques-Santos Jos´e Hon´orio lopes Julia Mariano Caju de Oliveira Carlos Alberto de Almeida Gadelha Tatiane Santi-Gadelha Programa de P´os-Graduaç˜ao em Ciˆencia e Tecnologia de Alimentos Universidade Federal da ParaíbaJo˜ao PessoaParaíbaBrazil Departamento de Biologia Molecular Universidade Federal da ParaíbaJo˜ao PessoaParaíbaBrazil Centro de Desenvolvimento Tecnol´ogico Universidade Federal de PelotasRio Grande do SulBrazil Programa de P´os-Graduaç˜ao em Ciˆencias da Nutriç˜ao Universidade Federal da ParaíbaJo˜ao PessoaParaíbaBrazil

Goat whey is an industry-discarded dairy by-product that has interesting nutritional value and a nutrient composition with important functional potential,where proteins have a high biological value and play an important role in the organism’s ***,the aim of this study was to identify,quantify,concentrate and investigate the capacity of goat whey proteins to perform different biological activities and to evaluate their acute *** proteins were quantified and identified by Bradford,Kjehdal and SDS-PAGE *** activity was performed against Listeria monocytogenes,Salmonella spp.,Staphylococcus aureus,Pseudomonas aeruginosa and Escherichia coli microorganisms and showed MIC ranging from 15 to 120μg mL-1,with the highest inhibition for *** *** activity was performed against human malignant melanoma cells and their proliferation inhibition was up to 66.8%within 72 h of *** highest antioxidant capacity was obtained at concentration 2 mg that showed 29.69%of inhibition of DPPH radical *** acute toxicity test was performed using Artemia franciscana larvae in which whey proteins were able to preserve larval survival throughout ***,we can conclude that goat’s whey has proteins that can play a positive effect on health,with antimicrobial activity and without *** present study highlights the great potential of goat’s whey to be developed as a safe biopreservative or as a functional ingredient in the food industry.

关键词： Goat whey proteins Malignant cells Antimicrobial Antioxidant capacity Whey protein functionality

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Maternal Effects of Immediate versus Delayed Umbilical Cord Clamping: A Randomized Clinical Trial

引用

Open Journal of Obstetrics and Gynecology 2021年第11期11卷 1500-1511页

作者： Gabriela Françoes Rostirolla Maria Alexandrina Zanatta Charles Francisco ferreira José Geraldo lopes Ramos Edimárlei Gonsales Valério Janete Vettorazzi Postgraduation Program in Health Sciences: Gynecology and Obstetrics (PPGGO) Faculdade de Medicina (FAMED) Universidade Federal do Rio Grande do Sul (UFRGS) Porto Alegre Brasil Universidade de Caxias do Sul (UCS) Caxias do Sul Brasil Gynecology and Obstetrics Department Clinical Hospital of Porto Alegre (HCPA) Faculdade de Medicina (FAMED) Universidade Federal do Rio Grande do Sul Rio Grande do Sul (UFRGS) Porto Alegre Brasil

OBJECTIVE: To compare maternal preoperative and postoperative hemoglobin variation after cord clamping. METHODS: Randomized clinical trial performed in Porto Alegre, RS from January to December 2012. It was included 356 women with habitual risk gestations. In the immediate cord clamping group, the umbilical cord section was realized between 0 and 60 s (group 1) while in the delayed cord clamping group it was realized >60 s (group 2). RESULTS: The mean (±standard deviation [SD]) preoperative hemoglobin was 12.13 ± 1.06 in the group 1 and 12.13 ± 1.11 in the group 2. The mean (±SD) postoperative day 2 hemoglobin level was 10.19 ± 1.46 in the group 1 and 10.24 ± 1.42 in the group 2. CONCLUSIONS: Delayed umbilical cord clamping resulted in a similar maternal hemoglobin level reduction at postoperative day 2.

关键词： Cord Clamping Delayed Cord Clamping Immediate Cord Clamping Matern Hemoglobin Level

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Correlation between Late Cord Clamping and Phototherapy and Other Neonatal Unfavorable Outcomes: A Randomized Clinical Trial

引用

Open Journal of Obstetrics and Gynecology 2022年第3期12卷 193-200页

作者： Janete Vettorazzi Gabriela Françoes Rostirolla Maria Alexandrina Zanatta Edimárlei Gonsales Valério Charles Francisco ferreira Jose Geraldo lopes Ramos Postgraduation Program in Health Sciences: Gynecology and Obstetrics Universidade Federal do Rio Grande do Sul (UFRGS) Porto Alegre Brazil Department of Gynecology and Obstetrics Faculty of Medicine (FAMED) Universidade Federal do Rio Grande do Sul (UFRGS) Porto Alegre Brazil Department of Gynecology and Obstetrics Faculty of Medicine (FAMED) Universidade Federal do Rio Grande do Sul (UFRGS) Porto Alegre Brazil Department of Gynecology and Obstetrics Faculty of Medicine Universidade de Caxias do Sul (UCS)

Background: Recently, late umbilical cord clamping is generally recommended, which decreases neonatal anemia;however, it may also increase neonatal jaundice and some other poor outcomes. Objectives: We here attempted to determine whether late clamping actually increases the incidence of phototherapy for jaundice and other poor outcomes of the term “low-risk newborns”. Methods: With the approval of the Brazilian Registry of Clinical Trials (REBEC), a total of 357 low-risk newborns (singleton, uncomplicated pregnancy/delivery, in a Brazilian public institution) were randomized into two groups: group I (n = 114): cord clamping 1 minute (early clamping) or group II (n = 243): cord clamping between 1 - 3 minutes (late clamping). Statistics were used appropriately (i.e., measures of central tendency, dispersion for continuous variables, Shapiro-Wilk, Mann-Whitney test, or Chi-square test). Results: Phototherapy was performed in 5.3% in both groups. Also, there were no statistical differences in the occurrence of secondary outcomes, such as sepsis, neonatal ICU admission, and transient tachypnea of the newborns: i.e., 0.9%, 15.8%, and 3.5%, respectively for group I versus 1.2%, 15.6%, and 5.8%, respectively for group II. Conclusion: Late umbilical cord clamping does not increase the need for phototherapy in low-risk neonates. This result corroborates the current recommendation of late cord clamping, whenever appropriate.

关键词： Phototherapy Neonatal Anemia Neonatal Jaundice Late Cord Clamping

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

蜂胶对致癌物诱导金仓鼠舌黏膜反应的影响(英文)

引用

中西医结合学报 2012年第12期10卷 1443-1450页

作者： Ricardo lopes-Rocha Poliana Ribeiro Barroso Alexandre Soares Santos Nádia Lages Lima Fernanda Oliveira ferreira Flaviana Dornela Verli Department of Dentistry Federal University of Vales do Jequitinhonha e Mucuri Department of Pharmacy Federal University of Vales do Jequitinhonha e Mucuri Department of Basic Sciences Federal University of Vales do Jequitinhonha e Mucuri

目的:研究9,10-二甲基-1,2-苯并蒽(9,10-dimethyl-1,2-benzanthracene,DMBA)以及蜂胶乙醇提取物(ethanol extract of propolis,EPE)对金仓鼠舌黏膜组织反应的影响。方法:60只金仓鼠按实验周期被随机分为两大组,每组再被分为EPE组、蜂胶水提取物(aqueous propolis extract,APE)组和DMBA组(n=20)。测定实验鼠舌黏膜的临床和组织学改变,包括面积、容积的临床改变,鳞状上皮组织的结构和细胞学变化,并测量鳞状细胞癌组织学上的改变区域。结果:各组在第13周和第20周所测定的实验结果不存在显著差异。在第13周,EPE组出现1例单一鳞状细胞癌;在第20周,EPE组的鳞状细胞癌的发生率最高,但与其他组比较差异无统计学意义。结论:蜂胶乙醇提取物对舌黏膜组织的影响以及其致癌机制还有待研究。

关键词：蜂胶致癌性试验 9,10-二甲基-1,2-苯并蒽化学预防金仓鼠

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：