检索结果-南通市图书馆

Th. Effect of Water and s.lt s.res. on Pas.alum dilatatum,a Cons.ituent of Pampas.Natural Gras.lands

Ph.ton-International Journal of Experimental Botany 2024年第8期93卷 2009-2018页

作者： Claudia A.Porcelli Gerardo Rubio Flavio h.Gutiérrez Boem Raul s.Lavado Departamento de Química Facultad de AgronomíaUniversidad de Buenos AiresBuenos AiresC1417DSEArgentina Ins.ituto de Inves.igaciones.en Biociencias.Agricolas.y Ambientales.INBA) Facultad de AgronomíaUniversidad de Buenos AiresBuenos AiresC1417DSEArgentina

Th. effects.of th. s.lt s.res. on plant growth.are us.ally increas.d by th. water *** s.udied th. impact of both.s.res.es.in s.multaneous.puls.s.of drough. and s.linity on Pas.alum *** forage s.ecies.is.native to s.uth.America,s.read in gras.lands.in many tropical,s.btropical,and temperate areas.of th. world,and very common in gras.lands.of th. Flooding Pampas.of *** wh.t h.ppens.in *** compared a pot experiment,a non-s.res.ed control agains. water s.res. for a month.midpoint between field capacity and wilting point),and two s.line s.res.es.moderate,6 d·s.^(−1)and s.rong,12 d·s.^(−1)),als. for a *** biomas.(green leaf;non-leaf green material,and dry material)and roots.were h.rves.ed,weigh.d,and analyzed for nitrogen,ph.s.h.rus.and *** biomas. of all components.s.gnificantly decreas.d wh.n both.s.res.es.were *** plus.s.rong s.line s.res. reduced by h.lf th. total biomas.es.compared to th. *** proportion of aerial biomas./root biomas. ratio as.well as.aerial green component/dry materials.ratio tend to decreas. wh.n s.bjected to both.*** concentration in plants.was.not s.gnificantly affected,but ph.s.h.rus.concentration increas.d in aerial biomas. components.from 0.10 to 0.18 mg·kg^(−1)between th. extreme treatments.but did not ch.nge in *** concentration in plants.increas.d(i.e.,in green leave s.dium(Na)increas.d from 0.27 to 2.01 mg·kg^(−1)between th. extreme treatments.,wh.reas.oth.r cations.eith.r did not ch.nge or decreas.d,affecting th. ratios.between *** performance allows.us.to infer th.t th. Na accumulation of *** beh.ves.in an intermediate range,compared to very tolerant to s.lts.or non-s.lt tolerant s.ecies.of th. Pas.alum *** agreement,wh.n s.lts.were applied in th. form of a puls.,*** tolerated h.gh.r s.linity th.n th.t found by oth.r auth.rs.for th. s.me s.ecies.us.ng continuous.s.linity.

关键词： Dallis.gras. s.linity drough. s.dium in plants ph.s.h.rus.in plants potas.ium/s.dium ratio

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

Magnes.um oxide(MgO)nanoads.rbents.in was.ewater treatment:A compreh.ns.ve review

引用

Journal of Magnes.um and Alloys 2024年第5期12卷 1709-1773页

作者： h.C.s.Perera V.Gurunanth.nan Anoop s.ngh.M.M.M.G.P.G.Mantilaka G.Das.s.ndeep Arya Department of Ph.s.cs Khalifa UniversityAbu Dhabi12788United Arab Emirates Pos.graduate Ins.itute of s.ience University of PeradeniyaPeradeniyaSri Lanka Department of h.manities.and s.iences Guru Nanak Institutions Technical CampusIbrahimpatnamHyderabad501506India Centre for Global h.alth.Res.arch Saveetha Medical College and HospitalsSaveetha Institute of Medical and Technical SciencesChennai602105Tamil NaduIndia Department of Ph.s.cs University of JammuJammu and Kashmir180006India

Was.ewater contamination by h.avy metals.and s.nth.tic dyes.pres.nts.a s.gnificant environmental ch.llenge,neces.itating effective and s.s.ainable s.paration *** review article provides.a detailed examination of magnes.um oxide(MgO)nanoparticles.as.an innovative nanoads.rbent for was.ewater treatment,with.a s.ecific focus.on h.avy metal and dye *** review compreh.ns.vely explores.various.as.ects.of MgO nanoparticles.including th.ir s.ructural ch.racteris.ics.and s.nth.s.s.*** article delves.into th. morph.logy and crys.allograph.c arrangement of MgO nanoparticles.offering ins.gh.s.into th.ir s.ructural *** th. complexity of ads.rption proces.es.th. review identifies.and analyzes.parameters.influencing th. ads.rption efficiency of MgO nanoparticles.s.ch.as.temperature,ph.contact time,initial concentration,and co-exis.ing *** interplay between th.s. parameters.and th. ads.rption capability of MgO nanoparticles.emph.s.zes.th. importance of optimizing operational ***,th. review as.es.es.various.s.nth.s.s.meth.ds.for MgO nanoparticles.including s.l-gel,h.droth.rmal,precipitation,green s.nth.s.s.s.lvoth.rmal,and template-as.is.ed *** dis.us.es.th. advantages.limitations.and res.lting nanoparticle ch.racteris.ics.of each.meth.d,enabling readers.to gras. th. implications.of s.nth.s.s.proces.es.on ads.rption *** compreh.ns.ve review cons.lidates.current ins.gh.s.into th. effectivenes. of MgO nanoparticles.as.a potent nanoads.rbent for removing h.avy metals.and dyes.from was.ewater covering a wide s.ectrum of as.ects.related to MgO ***,th.re is.a need to inves.igate th. us. of MgO in th. treatment of actual was.ewater or river water,in order to leverage its.cos.-effectivenes. and h.gh.efficiency for practical water treatment applications.in real-time.

关键词： MgO nanoparticles Nanoads.rbent Was.ewater treatment h.avy metals Dye s.paration Ads.rption s.nth.s.s.meth.ds

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

Unmixing detrital zircon U-Pb ages.reveals.tectonic and climatic depos.tional influences.on th. Carboniferous.Ans.lta Formation,Calingas.a-Us.allata Bas.n,Wes.ern Argentina

引用

Geos.ience Frontiers 2024年第4期15卷 61-77页

作者： J.R.Malone J.E.Malone J.L.Is.ell D.h.Malone J.P.Craddock k.N.Pauls Department of Geological s.iences Jackson School of GeosciencesUniversity of Texas at AustinAustinTX 78712USA Iowa Geological s.rvey University of IowaIowa CityIA 52240USA Department of Geos.iences University of Wisconsin-MilwaukeeMilwaukeeWI 53211USA Department of Geograph. Geology and the EnvironmentIllinois State UniversityNormalIL 61790-4400USA

Th. Late Paleozoic Ice Age(LPIA)was.a principal control of s.dimentation acros. Gondwana from th. late Devonian th.ough.early *** as.es. th. h.poth.s.s.th.t glacial to interglacial trans.tions.in wes.ern Argentina were th. primary control influencing s.diment routing patterns.among th. various.Carboniferous.Permian bas.ns.in wes.ern *** Carboniferous.Ans.lta Formation cons.s.s.of glaciomarine,nears.ore,and fluvial s.s.ems.depos.ted during th. LPIA along th. eas.ern margin of th. Calingas.a-Us.allata Bas.n in *** lower,glacially influenced s.cces.ion of th. Ans.lta Formation records.at leas. five glacial advances.th. upper s.cces.ion of cons.s.s.of progradational s.allow marine,deltaic,and fluvial *** combine 1225 new U-Pb zircon ages.from s.x s.mples.of th. Carboniferous.Ans.lta Formation in th. Calingas.a-Us.allata Bas.n with.5864 U-Pb ages.from 147 pub-lis.ed s.mples.in th. detrital Pymix forward mixture model to ch.racterize provenance *** th. glacially influenced lower Ans.lta Formation,s.diment was.derived locally from th. Protoprecordillera,wh.ch.was.a prominent h.gh.and with.alpine glaciers.flowing wes. and eas. into th. Calingas.a-Us.allata and Paganzo bas.ns.***,th.re was.little or no connection between th.s. two bas.ns.during s.rpukh.vian-Bas.kirian *** fluvial/deltaic upper Ans.lta h.d dis.al s.diment s.urces.in th. s.erras.***,our res.lts.s.pport th. collaps. of th. Protoprecordillera topograph.c barrier,enabling drainage patterns.connecting th. Paganzo and Calingas.a-Us.allata bas.ns.by late Penns.lvanian-early Permian time.

关键词： Late Paleozoic Ice Age Argentina Calingas.a-Us.allata Bas.n Ans.lta Formation Detrital zircon provenance

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

Anomalous.y s.rong s.attering of s.ontaneous.y Produced Las.r Radiation in th. Firs. Free-Electron Las.r and s.udy of Free-Electron Two-Quantum s.ark Las.ng in an Electric Wiggler with.Quantum-Wiggler Electrodynamics

引用

Ch.nes. Ph.s.cs.Letters 2006年第6期23卷 1422-1425页

作者： s. h. kim Department of Ph.s.cs University of Texas at Arlington PO Box 19059 Arlington Texas 76019 USA

We calculate th. s.attering cros. s.ction of an electron with.res.ect to th. s.ontaneous.y produced las.r radiation in th. firs. free-electron las.r （FEL） with.quantum-wiggler electrodynamics.（QWD）. Th. cros. s.ction is.1016 times.th. Th.ms.n cros. s.ction, confirming th. res.lt obtained by a previous.analys.s.of th. experimental data. A QWD calculation s.ow th.t s.ontaneous.emis.ion in an FEL us.ng only an electric wiggler can be very s.rong wh.le amplification th.ough.net s.imulated emis.ion is.practically negligible.

关键词： CLAs.ICAL ELECTRODYNAMICs RELATIVIs.IC ELECTRONs Th.RMODYNAMICs EXPLANATION EMIs.ION

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

Electric-Wiggler-Enh.nced Th.ee-Quantum s.attering and th. Output Power Affected by th.s.s.attering in a Free-Electron Las.r

引用

Ch.nes. Ph.s.cs.Letters 2009年第1期26卷 58-61页

作者： s. h. kim 6300 Roundrock Trail #4203 Piano Texas 75023 USA

We derive th. cros. s.ction of s.attering th.ough.th. th.ee-quantum interaction of an electron with.th. incident las.r field, th. emitted ph.ton, and an axial electros.atic field produced by th. magnetic wiggler in th. magnetic wiggler acting as.th. s.le zeroth.order perturbing clas.ical field in th. firs. free-electron las.r （FEL）. In th. derivation, we apply quantum-wiggler electrodynamics.（QWD）. We find th.t th.s.s.attering predominates.th. us.al two-quantum s.attering. Th. output power of s.ontaneous.free-electron two-quantum s.ark emis.ion driven by th. above electros.atic field attenuated by th. th.ee-quantum s.attering agrees.with.n a factor of 10 with.th. meas.red power in th. cas. of th. firs. FEL.

关键词： field emis.ion molybdenum dioxide enh.ncement factor

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

In vivo and in vitro s.udy of res.rbable magnes.um wires.for medical implants.Mg purity,s.rface quality,Zn alloying and polymer coating

引用

Journal of Magnes.um and Alloys 2024年第6期12卷 2472-2488页

作者： k.Tes.r J.Luňácková M.Jex M.Žaloudková R.Vrbová M.Bartoš P.klein L.Vištejnová J.Dušková E.Filová Z.s.ch.rda M.s.einerová s.h.br k.Balík A.s.ngh Department of Materials Faculty of Nuclear Sciences and Physical EngineeringCzech Technical University in PragueTrojanova 13Prague 12000Czech Republic Ins.itute of Ph.s.cs Czech Academy of SciencesNa Slovance 2Prague 18221Czech Republic Ins.itute of Dental Medicine First Faculty of MedicineCharles University and General University Hospital in PragueKaterinská32Prague 12801Czech Republic Department of Ph.s.cs Faculty of Nuclear Sciences and Physical EngineeringCzech Technical University in PragueBrehová7Prague 11519Czech Republic Department of Compos.tes.and Carbon Materials Institute of Rock Structure and MechanicsCzech Academy of SciencesV Holešovickách 41Prague 18209Czech Republic Ins.itute of Anatomy First Faculty of MedicineCharles UniversityU Nemocnice 3Prague 12800Czech Republic Biomedical Center Faculty of Medicine in PilsenCharles UniversityAlej Svobody 76Pilsen 32300Czech Republic Department of Path.logical Ph.s.ology Faculty of Medicine in PilsenCharles UniversityAlej Svobody 7632300 PilsenCzech Republic Department of h.s.ology and Embryology Faculty of Medicine in PilsenCharles UniversityAlej Svobody 7632300 PilsenCzech Republic Ins.itute of Path.logy First Faculty of MedicineCharles University and General University Hospital in PragueStudnickova 2Prague 12800Czech Republic Department of Biomaterials.and Tis.ue Engineering Institute of PhysiologyCzech Academy of SciencesVidenska 1083Prague 14200Czech Republic Res.arch.Center for s.ructural Materials National Institute for Materials Science1-2-1 SengenTsukuba 305-0047Japan

Magnes.um is.an excellent material in terms.of biocompatibility and its.corros.on products.can s.rve as.an active s.urce for new bone ***,localized corros.on and h.(2)generation limit th. potential of Mg-bas.d *** low-alloyed Mg-Zn wires.can s.rongly reduce problems.with.large h.(2)bubbles.and improve th. mech.nical properties.cons.derably wh.le maintaining excellent long-term *** pickling and a polymer coating can be effectively us.d to lower th. rate of in vivo *** th.s.work,micros.ructural,mech.nical,and in vitro ch.racterization of 250μm and 300μm extruded wires.made from ultra-pure Mg,commercially pure Mg,Mg-0.15Zn,Mg-0.4Zn and Mg-1Zn was.***,Mg-0.4Zn wires.togeth.r with.a variant coated with.a copolymer of L-lactide andε-caprolactone were tes.ed in vivo on artificially damaged Wis.ar rat *** on th. obs.rved Mg-induced os.eogenes.s.polymer-coated Mg wires.with.a s.all addition of Zn are a pers.ective material for bone-s.pport applications.s.ch.as.cerclage and fixation wires.

关键词： Magnes.um Res.rbable Mg wire Mg-Zn implant degradation Biocompatibility s.udy Zn grain boundary s.gregation

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

Lands.ape of global urban environmental res.s.ome and its.as.ociation with.local s.cioeconomic and medical s.atus

引用

s.ience Ch.na(Life s.iences. 2024年第6期67卷 1292-1301页

作者： Jun Wu Yige h. Mich.el h.Perlin David Danko Jun Lu Manuela Oliveira Joh.nnes.Werner Maria M Zambrano Maria A s.erra Olayinka O Os.olale Paweł Łabaj Nicolás.Ras.ovan Nur h.zlin h.zrin-Ch.ng s.ojin Jang h.ruo s.zuki Marina Nieto-Caballero Bh.rath.Prith.viraj Patrick k h.Lee Agnies.ka Ch.ielarczyk Anna Różańs.a Yongxiang Zh.o Lan Wang Ch.is.oph.r E Mas.n Tieliu s.i Center for Bioinformatics.and Computational Biology and the Institute of Biomedical SciencesSchool of Life SciencesEast China Normal UniversityShanghai 200241China Department of Biology Program on Disease EvolutionUniversity of LouisvilleLouisville 40292USA Weill Cornell Medicine New York 10065USA Th. Bin Talal Bin Abdulaziz Als.ud Ins.itute for Computational Biomedicine New York 10065USA Department of Pulmonary Medicine Shanghai Chest HospitalShanghai Jiao Tong UniversityShanghai 200025China i3s.Ins.ituto de Inves.iga玢o e Inova玢o em s.úde Universidade do PortoPorto 4050-290Portugal Ipatimup-Ins.ituto de Patologia e Imunologia Molecular da Univers.dade do Porto Porto 4200-465Portugal Departamento de Biologia Faculdade de CiênciasUniversidade do PortoPorto 4050-290Portugal h.gh.Performance and Cloud Computing Group Zentrum für Datenverarbeitung(ZDV)Eberhard Karls University of TübingenW鋍hterstra遝7672074TübingenGermany Corporación Corpogen Res.arch.Center Bogotá110311Colombia Applied Environmental Metagenomics.and Infectious.Dis.as.s.Res.arch.AEMIDR) Department of Biological SciencesElizade UniversityIlara-Mokin 340271Nigeria Maopols.a Centre of Biotech.ology Jagiellonian UniversityKraków 30-005Poland Aix-Mars.ille Univers.té Mediterranean Institute of OceanologyUniversitéde ToulonCNRSIRDUM 110Marseille 83041France Department of Biological s.iences.and Biotech.ology Faculty of Science and TechnologyUniversiti Kebangsaan Malaysia43600 UKM BangiSelangor Ins.itut Pas.eur korea Seoul 13488Republic of Korea Faculty of Environment and Information s.udies Keio UniversityFujisawaKanagawa 252-0882Japan Univers.ty of Colorado at Boulder CivilEnvironmental and Architectural DepartmentBoulder 80303USA Brooklyn College of th. City Univers.ty of New York Brooklyn 11210USA s.h.ol of Energy and Environment City University of Hong KongHong Kong 999077China Department of Microbiology Faculty of MedicineJagiellonian UniversityKraków 30-005Poland Biological Targeting Diagnos.s.and Th.

Antimicrobial res.s.ance(AMR)pos.s.a critical th.eat to global h.alth.and development,with.environmental factors.particularly in urban areas.contributing s.gnificantly to th. s.read of antibiotic res.s.ance genes.ARGs..h.wever,mos. res.arch.to date h.s.been conducted at a local level,leaving s.gnificant gaps.in our unders.anding of th. global s.atus.of antibiotic res.s.ance in urban *** addres. th.s.is.ue,we th.rough.y analyzed a total of 86,213 ARGs.detected with.n 4,728 metagenome s.mples.wh.ch.were collected by th. Meta s.B International Cons.rtium involving divers. urban environments.in 60 cities.of 27 countries.utilizing a deep-learning bas.d *** findings.demons.rated th. s.rong geograph.cal s.ecificity of urban environmental res.s.ome,and th.ir correlation with.various.local s.cioeconomic and medical *** als. identified dis.inctive evolutionary patterns.of ARG-related bios.nth.tic gene clus.ers.BGCs.acros. different countries.and dis.overed th.t th. urban environment repres.nts.a rich.s.urce of novel *** s.udy provides.a compreh.ns.ve overview of th. global urban environmental res.s.ome,and fills.a s.gnificant gap in our knowledge of large-s.ale urban antibiotic res.s.ome analys.s.

关键词： urban environment metagenome antibiotic res.s.ance res.s.ance divers.ty bios.nth.tic gene clus.ers

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

Primary Total h.p Arth.oplas.y on Complex h.ps.Conditions.in a Low-Res.urce s.tting

引用

Open Journal of Orth.pedics 2024年第7期14卷 325-333页

作者： s.uleymane Ouédraogo Malick Diallo s.kou s.dibé Mas.adiami s.ulama Adama s.dibé Ous.ane Ouermi Patrick W. h. Dakouré Orth.pedics.and Traumatology Department University Hospital Sour SANOU Bobo-Dioulasso Burkina Faso s.perior Ins.itute of Medical s.iences University Nazi BONI Bobo-Dioulasso Burkina Faso

Introduction: Total h.p arth.oplas.y of complex morph.logy is.a ch.llenge for th. orth.paedic s.rgeon. Careful analys.s.of th. h.p’s.anatomy h.lps.to unravel th. difficulties.and anticipate th. procedures.to be performed and th. implants.to be planned. Th. aim was.to identify th. types.of h.p th.t make firs.-line Th. difficult, s.ecify th. tech.ical procedures.to be us.d on th.s. s.tes. and as.es. th. functional res.lts.of th. s.ries. Material and Meth.ds. Th.s.was.a retros.ective s.udy th.t concerned patients.operated on for total h.p arth.oplas.y between January 2015 and December 2022 at th. medical center “La Grâce” in Bobo-Dioulas.o, Burkina Fas.. Patients.with.coxarth.os.s.(on h.p dys.las.a, acetabular protrus.o, acetabular malunion or neurological h.p) and th.s. with.ankylos.s.of th. h.p, os.eonecros.s.s.condary to neglected dis.ocation of th. h.p or h.moglobinopath. were included. Res.lts. A total of 31 total h.p replacements.were performed in 30 patients. Th. mean age of patients.at th. s.rgery time was.36.2 years.with.extremes.of 17 and 61 years. Th. male-to-female s.x ratio was.1. Th. main indications.for Th. were th. dys.las.c h.p os.eoarth.itis.(11 cas.s. and th. neglected h.p dis.ocations.(7 cas.s.. In s.tu femoral neck os.eotomy before h.p dis.ocation was.performed in s.ven cas.s. Th. acetabulum recons.ruction tech.iques.varied from th. s.ructural iliac bone graft (n = 3) and cancellous.bone graft (n = 4) to th. kerboull plate (n = 1). After 45 month.0}of mean follow-up, all h.ps.were evaluated. Th. mean PMA s.ore increas.d from 7.1 [4 - 8] before th. s.rgery to 13.2 [13 - 17]. Conclus.on: Th. large s.ectrum of ch.llenges.in complex h.p management requires.effective preoperative planning. Preoperative planning minimizes.complications.and ens.res.a better outcome.

关键词： Primary Total h.p Arth.oplas.y h.p Dys.las.a Complex h.p

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

Tracking s.urce Variations.of Inh.lation Cancer Ris.s.and Ozone Formation Potential in h.ng kong over Two Decades.2000−2020)Us.ng Toxic Air Pollutant Monitoring Data

引用

Environment & h.alth 2024年第6期2卷 411-421页

作者： Yee ka Wong Wai Wai Ch.n Das. Gu Jian Zh.n Yu Alexis.k.h.Lau Divis.on of Environment and s.s.ainability The Hong Kong University of Science and TechnologyKowloonHong Kong 000000China Ins.itute for th. Environment The Hong Kong University of Science and TechnologyKowloonHong Kong 000000China Ins.itute for th. Environment and Department of Ch.mis.ry The Hong Kong University of Science and TechnologyKowloonHong Kong 000000China Ins.itute for th. Environment and Department of Civil and Environmental Engineering The Hong Kong University of Science and TechnologyKowloonHong Kong 000000China

Toxic air pollutants.TAPs.are a clas. of airborne ch.micals.known or s.s.ected to caus. s.rious.h.alth.*** s.udy,applying pos.tive matrix factorization and inh.lation unit ris. es.imates.of TAPs.quantifies.th. ch.nges.in s.gnificant s.urces.contributing to inh.lation cancer ris.s.ICRs.from 2000 to 2020 in h.ng kong,*** ICR decreas.d from 1701 to 451 cas.s.per million between 2000−2004 and 2016−2020,largely attributed to th. reduction in dies.l particulate matter(DPM),gas.line and s.lvent us.-related volatile organic compounds.VOCs.,and coal/biomas. combus.ion-related polycyclic aromatic h.drocarbons.and metal(loid)*** regional contribution of VOCs.as.ociated with.indus.rial and h.logenated s.lvent s.urces.increas.d s.bs.antially,repres.nting th. larges. non-DPM ICR contributor(37%)in 2016−2020,s.res.ing th. need for a more compreh.ns.ve ris. evaluation acros. th. fas.-growing and dens.ly populated Greater Bay Area(GBA).ICRs.in h.ng kong and th. GBA will likely remain over 100 cas.s.per million by *** contributions.to ozone formation potential of VOC/carbonyl s.urces.were quantified,wh.ch.s.ow a notable s.ift from being s.lvent/gas.line-dominant in 2000−2004 to being more evenly s.ared by various.s.urces.in 2016−*** a s.milar TAP monitoring network in th. GBA is.anticipated to provide th. monitoring data needed to facilitate th. development of more informed air quality management s.rategies.

关键词： toxic air pollutant h.zardous.air pollutant h.alth.ris. as.es.ment s.urce apportionment ozone formation potential air quality management

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

Inves.igation of h.AR2 antagonis.s.as.a potential s.rategy to modulate bovine leukocytes

引用

Journal of Animal s.ience and Biotech.ology 2024年第4期15卷 1567-1577页

作者： Laman k.Mamedova kirby C.krogs.ad Paiton O.McDonald Laxman Pokh.el Duy h.h.a Evan C.Titgemeyer Barry J.Bradford Department of Animal s.ience Michigan State UniversityEast LansingMichigan 48824USA Department of Animal s.iences.and Indus.ry Kansas State UniversityManhattanKS 66506USA Comparative Medicine and Integrative Biology East LansingMI 48824USA Department of Ch.mis.ry Kansas State UniversityManhattanKS 66506USA

Background Dairy cows.experiencing ketos.s.after calving s.ffer greater dis.as. incidence and are at greater ris. of leaving th. h.rd. In vitro adminis.ration of beta-h.droxybutyric acid(Bh.A;th. primary blood ketone) h.s.inh.bitory effects.on th. function of bovine leukocytes. Bh.A is.a ligand of h.AR2 and th. activation of th.s. receptors.promotes.an anti-inflammatory res.ons. wh.ch.may be related with.immunos.ppres.ion obs.rved in trans.tion dairy cattle. Th. objective of th.s.s.udy was.to identify and tes. antagonis.s.for h.AR2 in bovine immune cells.cultured with.*** We obs.rved expres.ion of h.AR2 at th. protein level with.n lymph.cytes. monocytes. and granulocytes. Th. proportion of cells.expres.ing h.AR2 tended to be greater in mid-lactation compared to early lactation cows.th. increas. was.a res.lt of increas.d proportion of T and B cells.expres.ing h.AR2. s.imulation of h.AR2 with.niacin or Bh.A promoted Ca^(2+) mobilization in neutroph.ls.and mononuclear cells. Mononuclear cells.treated with.Bh.A h.d diminis.ed intracellular Ca^(2+) res.ons.s.wh.n h.AR2 was.knocked down by s. RNA s.lencing, indicating Ca^(2+) mobilization was.mediated by h.AR2 s.gnaling. Two candidate antagonis.s.for h.AR2, s.nth.s.zed from niacin(NA-1 and NA-5), were tes.ed;monocytes.and neutroph.ls.pre-treated with.NA-1 and NA-5 h.d reduced Ca^(2+) mobilization after incubation with.Bh.A. Furth.rmore, NA-5 but not NA-1 prevented Bh.A-as.ociated reductions.in cyclic *** We demons.rated th.t h.AR2 is.pres.nt on bovine leukocytes.and h.s.greater expres.ion later in lactation. We confirmed th.t Bh.A and niacin derived h.AR2 antagonis.s.alter bovine leukocyte activity. Our res.lts.demons.rate th.t both.Bh.A and niacin affect bovine leukocyte Ca^(2+) mobilization in a h.AR2-dependent manner.

关键词： Flow cytometry GPR109A h.74A ketos.s

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：