检索结果-南通市图书馆

Microbiota modification by probiotic supplementation reduces colitis associated colon cancer in mice

World Journal of Gastroenterology 2018年第18期24卷 1995-2008页

作者： maria carolina s mendes Daiane sM Paulino sandra R Brambilla Juliana A Camargo Gabriela F Persinoti José Barreto C Carvalheira Department of Internal Medicine Faculty of Medical Sciences State University of Campinas (UNICAMP) Brazilian Bioethanol science and Technology Laboratory (CTBE) Brazilian Center for Research in Energy and Materials (CNPEM)

AIM To investigate the effect of probiotic supplementation during the development of an experimental model of colitis associated colon cancer(CAC). METHODs C57 BL/6 mice received an intraperitoneal injection of azoxymethane(10 mg/kg), followed by three cycles of sodium dextran sulphate diluted in water(5% w/v). Probiotic group received daily a mixture of Lactobacillus acidophilus, Lactobacil us rhamnosus and Bifidobacterium bifidum. Microbiota composition was assessed by 16 sr RNA Illumina Hi seq sequencing. Colon samples were collected for histological analysis. Tumor cytokines was assessed by Real Time-PCR(Polymerase Chain Reaction); and serum cytokines by Multiplex assay. All tests were two-sided. The level of significance was set at P s were generated and statistical analysis performed using the software Graph Pad Prism 5.0. The project was approved by the institutional review board committee. REsULTs At day 60 after azoxymethane injection, the mean number of tumours in the probiotic group was 40% lower than that in the control group, and the probiotic group exhibited tumours of smaller size(s no difference in richness and diversity between groups. However, there was a significant difference in beta diversity in the multidimensional scaling analysis. The abundance of the genera Lactobacillus, Bifidobacterium, Allobaculum, Clostridium XI and Clostridium XVⅢ increased in the probiotic group(P s accompanied by reduced colitis, demonstrated by a 46% reduction in the colon inflammatory index; reduced expression of the serum chemokines RANTEs and Eotaxin; decreased p-IKK and TNF-α and increased IL-10 expression in the colon. CONCLUsION Our results suggest a potential chemopreventive effect of probiotic on CAC. Probiotic supplementation changes microbiota structure and regulates the inflammatory response, reducing colitis and preventing CAC.

关键词： Intestinal microbiota Chemoprevention Lactobacillus acidophilus Lactobacillus rhamnosus Bifidobacterium bifidum

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

Diacerein treatment prevents colitis-associated cancer in mice

引用

World Journal of Clinical Oncology 2020年第9期11卷 732-746页

作者： Daiane s M Paulino maria carolina s mendes Juliana A Camargo sandra R Brambilla Tanila Wood Dos santos Marcelo L Ribeiro JoséBarreto Campello Carvalheira Department of Internal Medicine Faculty of Medical SciencesState University of CampinasSao Paulo 13083-970Brazil Department of Clinical Pharmacology and Gastroenterology Sao Francisco UniversitySao Paulo 12916-900Brazil

BACKGROUND Inflammation is a well-established enabling factor for cancer development and provides a framework for the high prevalence of colon cancer in inflammatory bowel *** accordance,chronic inflammation has recently been implicated in the development of cancer stem cells(CsCs).However,the mechanism whereby anti-inflammatory drugs act in the prevention of colitis-associated cancer(CAC)is only partially *** To evaluate the role of diacerein(DAR),an anti-inflammatory drug that mainly acts through the inhibition of interleukin(IL)-1βexpression in the development of CsCs and *** The effects of DAR on colon inflammation in mice with CAC were evaluated by inflammatory index,reverse real-time transcription polymerase chain reaction and western *** levels were measured by enzyme-linked immunosorbent *** assays evaluated the effects of DAR on *** and apoptosis assays were also used to evaluate the effects of DAR on tumorigenesis associated with *** DAR treatment reduced colon inflammation as well as the number and size of tumors in azoxymethane plus dextran sulphate sodium-treated ***,DAR treatment was associated with reduced intracellular signals of inflammation(inhibitor of nuclear factor kappa B kinase and c-Jun N-terminal kinase phosphorylation)in the *** addition,DAR treatment was associated with a decrease in colon CsC formation,suggesting that besides reducing colonic inflammation,DAR has a direct effect on the inhibition of colon *** Together,these data indicate that DAR-mediated IL-1βsuppression attenuates inflammation-induced colon cancer and CsC formation,highlighting DAR as a potential candidate for the chemoprevention of CAC.

关键词： Colon cancer Cancer stem cell Chemoprevention

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

Brain-derived neurotrophic factor signaling in the neuromuscular junction during developmental axonal competition and synapse elimination

引用

Neural Regeneration Research 2025年第2期20卷 394-401页

作者： Josep Tomàs Víctor Cilleros-Mañé Laia Just-Borràs Marta Balanyà-segura Aleksandra Polishchuk Laura Nadal Marta Tomàs carolina silvera-simón Manel M.santafé maria A.Lanuza Unitat d’Histologia i Neurobiologia(UHNeurob) Facultat de Medicina i Ciències de la SalutUniversitat Rovira i VirgiliReusSpain

During the development of the nervous system,there is an overproduction of neurons and *** competition between neighboring nerve endings and synapses performing different activity levels leads to their elimination or *** have extensively studied the involvement of the brain-derived neurotrophic factor-Tropomyosin-related kinase B receptor neurotrophic retrograde pathway,at the neuromuscular junction,in the axonal development and synapse elimination process versus the synapse *** purpose of this review is to describe the neurotrophic influence on developmental synapse elimination,in relation to other molecular pathways that we and others have found to regulate this *** particular,we summarize our published results based on transmitter release analysis and axonal counts to show the different involvement of the presynaptic acetylcholine muscarinic autoreceptors,coupled to downstream serine-threonine protein kinases A and C(PKA and PKC)and voltage-gated calcium channels,at different nerve endings in developmental *** dynamic changes that occur simultaneously in several nerve terminals and synapses converge across a postsynaptic site,influence each other,and require careful studies to individualize the mechanisms of specific *** describe an activity-dependent balance(related to the extent of transmitter release)between the presynaptic muscarinic subtypes and the neurotrophin-mediated TrkB/p75NTR pathways that can influence the timing and fate of the competitive interactions between the different axon *** downstream displacement of the PKA/PKC activity ratio to lower values,both in competing nerve terminals and at postsynaptic sites,plays a relevant role in controlling the elimination of supernumerary ***,calcium entry through L-and P/Q-subtypes of voltage-gated calcium channels(both channels are present,together with the N-type channel in developing nerve terminals)contributes to red

关键词： acetylcholine release adenosine receptors axonal competition brain-derived neurotrophic factor calcium channels motor end-plate muscarinic acetylcholine receptors postnatal synapse elimination serine kinases tropomyosin-related kinase receptorB

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

Mitochondria in Huntington’s disease:implications in pathogenesis and mitochondrial-targeted therapeutic strategies

引用

Neural Regeneration Research 2023年第7期18卷 1472-1477页

作者： Anamaria Jurcau carolina maria Jurcau Department of Psycho-Neurosciences and Rehabilitation Faculty of Medicine and PharmacyUniversity of OradeaOradeaRomania Neurology 3 Ward Clinical Emergency Hospital OradeaRomania Faculty of Medicine and Pharmacy University of OradeaRomania

Huntington’s disease is a genetic disease caused by expanded CAG repeats on exon 1 of the huntingtin gene located on chromosome *** evidence implicates impaired mitochondrial energetics,altered mitochondrial biogenesis and quality control,disturbed mitochondrial trafficking,oxidative stress and mitochondrial calcium dyshomeostasis in the pathogenesis of the ***,conventional mitochondrial-targeted molecules,such as cysteamine,creatine,coenzyme Q10,or triheptanoin,yielded negative or inconclusive ***,future therapeutic strategies,aiming to restore mitochondrial biogenesis,improving the fission/fusion balance,and improving mitochondrial trafficking,could prove useful tools in improving the phenotype of Huntington’s disease and,used in combination with genome-editing methods,could lead to a cure for the disease.

关键词： antioxidants calcium homeostasis Huntington’s disease mitochondrial biogenesis mitochondrial fission/fusion mitochondrial trafficking oxidative phosphorylation oxidative stress ss peptides therapeutic intervention

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

Transcriptomic responses to drought stress in the Patagonian southern beech Nothofagus alpina

引用

Ecological Processes 2024年第2期13卷 192-203页

作者： Rita maria Lopez Laphitz María Verónica Arana santiago Agustín Varela Leandro Aníbal Becker carolina soliani María Marta Azpilicueta Paula Marchelli Nicolás Bellora Instituto de Diversidad y Evolución Austral (CENPAT CONICET ) Instituto de Investigaciones Forestales y Agropecuarias Bariloche (IFAB INTA CONICET ) Instituto de Tecnologías Nucleares para la salud (CONICET )

Background Deciphering the genetic architecture of drought tolerance could allow the candidate genes identification responding to water stress. In the Andean Patagonian forest, the genus Nothofagus represents an ecologically relevant species to be included in different genomic studies. These studies are scarce in south American ecosystems however represent an important source of genomic data in order to interpret future climate-change environment scenarios of these emblematic forests. Here, we achieved the assemblage of the transcriptome of N. alpina while searching for key genes of activated or suppressed metabolic pathways in response to drought *** De novo transcriptome assembly resulted in 104,030 transcripts. Following confirmation of drought conditions, based on reduction of leaf water potential and stomatal conductance, a differential gene expression analysis resulted in 2720 significantly expressed genes(1601 up-regulated and 1119 down-regulated). Enrichment analysis(over-representation analysis and gene set enrichment analysis) resulted in more than one hundred stress-responsive term ontologies(i.e. biological processes) and pathways. Terms such as response to abscisic acid and pathways such as plant hormone signal transduction or starch and sucrose metabolism were over-represented. Protein–protein interaction assessment resulted in networks with significantly expressed top common hub gene clusters(e.g. planttype cell wall biogenesis among down-regulated or ABA-signalling among up-regulated). These networks evidenced important regulators at gene expression such as transcriptional *** Responses of N. alpina seedlings to drought stress were evidenced by the activation of several genes linked to GO biological processes and KEGG pathways, which were mainly based on over-expression of specific protein kinases, phosphatases, synthases and transcription factors. This suggests an up-regulation of signalling pathways, triggered through pla

关键词： Climate change Differential gene expression Hub genes Patagonia Temperate forest

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Crop residues: applications of lignocellulosic biomass in the context of a biorefinery

引用

Frontiers in Energy 2022年第2期16卷 224-245页

作者： maria carolina ANDRADE Caio de Oliveira GORGULHO sILVA Leonora Rios de sOUZA MOREIRA Edivaldo Ximenes FERREIRA FILHO Laboratory of Enzymology Department of Cellular BiologyUniversity of BrasiliaBrasiliaDFBrazil

Interest in lignocellulosic biomass conversion technologies has increased recently because of their potential to reduce the dependency on non-renewable feedstocks. Residues from a variety of crops are the major source of lignocellulose, which is being produced in increasingly large quantities worldwide. The commercial exploitation of crop residues as feedstocks for biorefineries which could be used to produce a variety of goods such as biofuels, biochemicals, bioplastics, and enzymes is an attractive approach not only for adding value to residues but also for providing renewable products required by the expanding bioeconomy market. Moreover, the implementation of biorefineries in different regions has the potential to add value to the specific crop residues produced in the region. In this review, several aspects of crop residue application in biorefineries are discussed, including the role of crop residues in the bioeconomy and circular economy concepts, the main technical aspects of crop residue conversion in biorefineries, the main crop residues generated in different regions of the world and their availability, the potential value-added bioproducts that can be extracted or produced from each crop residue, and the major advantages and challenges associated with crop residue utilization in biorefineries. Despite their potential, most biomass refining technologies are not sufficiently advanced or financially viable. several technical obstacles, especially with regard to crop residue collection, handling, and pre-treatment, prevent the implementation of biorefineries on a commercial scale. Further research is needed to resolve these scale-up-related challenges. Increased governmental incentives and bioeconomic strategies are expected to boost the biorefinery market and the cost competitiveness of biorefinery products.

关键词： crop residue biorefinery bioproduct biomass circular bioeconomy enzyme

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

Optimal and synchronized germination of Robinia pseudoacacia,Acacia dealbata and other woody Fabaceae using a handheld rotary tool:concomitant reduction of physical and physiological seed dormancy

引用

Journal of Forestry Research 2018年第2期29卷 283-290页

作者： Nuria Pedrol carolina G.Puig Antonio Lo′pez-Nogueira maria Pardo-Muras Luis Gonzalez Pablo souza-Alonso Department of Plant Biology and soil science Faculty of BiologyUniversity of VigoUniversity Campus36310 VigoSpain

The Fabaceae(legume family) is one of the largest families of plants with a worldwide distribution and a major role in agriculture and in agroforestry.A hard seed coat impermeable to water is a typical feature of several *** dormancy delays and reduces germination so that mechanical,physical and chemical scarification methods have been classically used to break seed dormancy of many *** evaluate the effectiveness of a methodology to scarify seeds of several woody Fabaceae of ecological and economical importance,including Robinia pseudoacacia and Acacia dealbata and the shrubs Cytisus scoparius,*** and Ulex *** describe the optimized use of a handheld rotary tool(HRT),and compare its effectiveness with other scarification methods reported to break dormancy such as boiling or dry *** germination and/or speed of germination were enhanced after the application of the HRT,with germination percentages significantly higher than those achieved by other methods of *** on a thorough literature review,a mode of action for the HRT is suggested which could operate by breaking the physical and physiological dormancy of treated seeds through thecombined action of coat abrasion and moderate *** these results,we recommend the application of this rapid,effective,low-cost and highly reproducible HRT method to break seed dormancy and enhance germination of these species and others with similar dormancy constraints.

关键词： Combinational dormancy Hardcoat Rotary tool scarification Temperature

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

soil ecosystem changes by vegetation on old-field sites over five decades in the Brazilian Atlantic forest

引用

Journal of Forestry Research 2022年第2期33卷 667-677页

作者： Danielle Cristina Ortiz Tancredo Augusto Feitosa de souza Tatiani maria Pech Marie Luise carolina Bartz Dilmar Baretta Alexandre siminski Júlia Carina Niemeyer Federal University of santa Catarina Ulysses Gaboardikm 3CuritibanosSC 89520-000Brazil Postgraduate Programme in Agricultural and Natural Ecosystems(PPGEAN) Federal University of Santa CatarinaUlysses Gaboardikm 3CuritibanosSC 89520-000Brazil Centre for Functional Ecology Department of Life SciencesUniversity of Coimbra3000-456 CoimbraPortugal Department of Animal science UDESC OesteSanta Catarina State UniversityChapecóSC 89815-630Brazil

Vegetation types alter soil ecosystems by changing soil fauna community activities and soil physi-cal-chemical ***,it is unclear how tree species(natural forest,native and exotic tree plantations)promote changes in the soil ecosystem,and if these changes alter functional groups of soil fauna and ecosystem *** determine the effects of five decades of old-field veg-etation on soil ecosystems in the Brazilian Atlantic Forest,field sampling of three ecosystems(exotic tree species Pinus elliottii ***,endangered tree species Arau-caria angustifolia(Bertol.)Kuntze plantation,and a natural ecosystem)were carried out,as well using bait-lamina tests and bioassays with collembolans,earthworms and seeds of Lactuca sativa *** sampling evaluated the soil fauna community and soil physical-chemical *** bait-lamina test in situ was carried out for 14-days to deter-mine fauna feeding activity,and the bioassays evaluated the reproduction of Folsomia candida,the avoidance of Eisenia andrei,and germination of *** in the soil from each *** results are:(1)vegetation type altered the soil fauna community composition;(2)soil fauna feeding was reduced in the plantations compared to the natural eco-system;(3)a physical barrier was created by recalcitrant litter that compromised fauna community structure and seed bank germination in situ;and,(4)changes in soil physical-chemical properties promoted decomposers.

关键词： Endangered tree species Exotic tree species Forest ecosystem soil fauna functional groups soil invertebrates

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

Coupling of bioelectrochemical toluene oxidation and trichloroethene reductive dechlorination for single-stage treatment of groundwater containing multiple contaminants

引用

Environmental science and Ecotechnology 2022年第3期11卷 32-39页

作者： carolina Cruz Viggi Matteo Tucci Marco Resitano simona Crognale maria Letizia Di Franca simona Rossetti Federico Aulenta Water Research Institute(IRsA) National Research Council(CNR)Via Salaria Km 2930000015MonterotondoRMItaly

Bioremediation of groundwater contaminated by a mixture of aromatic hydrocarbons and chlorinated solvents is typically challenged because these contaminants are degraded via distinctive oxidative and reductive pathways,thus requiring different amendments and redox ***,we provided the proof-of-concept of a single-stage treatment of synthetic groundwater containing toluene and trichloroethene(TCE)in a tubular bioelectrochemical reactor,known as a“bioelectric well”.Toluene was degraded by a microbial bioanode(up to 150 mmol L^(-1) d^(-1))with a polarized graphite anode(t0.2 V ***)serving as the terminal electron *** electric current deriving from microbially-driven toluene oxidation resulted in(abiotic)hydrogen production(at a stainless-steel cathode),which sustained the reductive dechlorination of TCE to less-chlorinated intermediates(i.e.,cis-DCE,VC,and ETH),at a maximum rate of 500 meq L^(-1) d^(-1),in the bulk of the reactor.A phylogenetic and functional genebased analysis of the“bioelectric well”confirmed the establishment of a microbiome harboring the metabolic potential for anaerobic toluene oxidation and TCE reductive ***,Toluene degradation and current generation were found to be rate-limited by external mass transport phenomena,thus indicating the existing potential for further process optimization.

关键词： Bioelectric well Dehalococcoides mccartyi Electrobioremediation Groundwater remediation Toluene Trichloroethene

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

scaffold proteins of cancer signaling networks: The paradigm of FK506 binding protein 51 (FKBP51) supporting tumor intrinsic properties and immune escape

引用

Oncology Research 2023年第4期31卷 423-436页

作者： LAURA MARRONE MAssIMO D’AGOsTINO carolina GIORDANO VALERIA DI GIACOMO sIMONA URZINI CHIARA MALAsOMMA maria PAOLA GAMMELLA MARTINA TUFANO sIMONA ROMANO maria FIAMMETTA ROMANO Department of Molecular Medicine and Medical Biotechnology University of Naples Federico IINaples80131Italy Dipartimento di Diagnostica per Immagini e Neuroradiologia Fondazione Policlinico Universitario“A.Gemelli”IRCCSUniversitàCattolica S.CuoreRomeItaly

scaffold proteins are crucial regulators of signaling networks,and their abnormal expression may favor the development of *** the scaffold proteins,immunophilin covers a unique role as‘protein-philin’(Greek‘philin’=friend)that interacts with proteins to guide their proper *** growing list of human syndromes associated with the immunophilin defect underscores the biological relevance of these proteins that are largely opportunistically exploited by cancer cells to support and enable the tumor’s intrinsic *** the members of the immunophilin family,the FKBP5 gene was the only one identified to have a splicing *** cells impose unique demands on the splicing machinery,thus acquiring a particular susceptibility to splicing *** review article aims to overview the current knowledge of the FKBP5 gene functions in human cancer,illustrating how cancer cells exploit the scaffolding function of canonical FKBP51 to foster signaling networks that support their intrinsic tumor properties and the spliced FKBP51s to gain the capacity to evade the immune system.

关键词： Immunophilin Alternative splicing signal transduction

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

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：