检索结果-南通市图书馆

Filling the Gaps to Solve the Extensin Puzzle

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

m.lecular Plant 2018年第5期11卷 645-658页

作者： Eliana m.rzol Cecilia Borassi m.uro Bringas ana Sede Diana Rosa Rodriguez Garcia Luciana Capece Jose m. Estevez Fundacion Instituto Leloir and Instituto de Investigaciones Bioquim.cas de Buenos Aires (IIBBA-CO.NICEr) Avenida Patricias Argentinas 435 Buenos AiresCP C1405BWE Argentina Departam.nto de Quim.ca Inorganica Analitica y Quimica Fisica Facultad de Ciencias Exactas y Naturales Universidad de Buenos Aires (INQUIMAE-CONICET)Buenos Aires CP C1428EGA Argentina Instituto de Investigaciones en Ingenierfa Genetica y Biologia m.lecular Dr. Hector Torres (INGEBI-CONICET) Vuelta de Obligado 2490 Buenos Aires C1428ADNArgentina

Extensins （EXTs） are highly repetitive plant O-glycoproteins that require several post-translational m.difi- cations （PTm.） to becom. functional in plant cell walls. First, they are hydroxylated on contiguous proline residues; then they are O-glycosylated on hydroxyproline and serine. After secretion into the apoplast, O-glycosylated EXTs form.a tridim.nsional network organized by inter- and intra-Tyr linkages. Recent studies have m.de significant progress in the identification of the enzym.tic m.chinery required to process EXTs, which includes prolyl 4-hydroxylases, glycosyltransferases, papain-type cysteine endopeptidases, and peroxidases. EXTs are abundant in plant tissues and are particularly im.ortant in rapidly expanding root hairs and pollen tubes, which grow in a polar m.nner. Sm.ll changes in EXT PTm. affect fastgrowing cells, although the m.lecular m.chanism. underlying this regulation are unknown. In this review, we highlight recent advances in our understanding of EXT m.difications throughout the secretory pathway, EXT assem.ly in cell walls, and possible sensing m.chanism. involving the Catharanthus roseus cell surface sensor receptor-like kinases located at the interface between the apoplast and the cytoplasm.c side of the plasm. m.m.rane.

关键词： Arabidopsis thaliana cysteine endopeptidases extensins glycosyltransferases peroxidases prolyl 4-hydroxylases

INTRINSIC FLUORESCENCE CHANGES IN NERVE TERm.NALS,EVOKED BY ACTION POTENTIALS,ARE m.DULATED BY KREBS CYCLE SUBSTRATES

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Innovative Optical Health Sciences 2011年第2期4卷 209-214页

作者： PAUL KOSTERIN ana LIA OBAID BRIAN m.SALZBERG Departm.nt of Neuroscience University of Pennsylvania School of m.dicine Philadelphia PA 19104USA Departm.nt of Physiology University of Pennsylvania School of m.dicine Philadelphia PA 19104USA

Electrical stim.lation of the m.m.alian neurohypophysial infundibular stalk evokes the entry of Nat and Ca^(2+) into the neurosecretory term.nals during the action *** events,in turn,increase intracellular Ca^(2+) and activate NaK-and Ca-ATPases,prom.ting the m.tochondria to increase oxidative phosphorylation which can be m.nitored by recording the changes in FAD and *** paper reflects our efforts to determ.ne whether or not m.dulating the capacity of m.tochondria to produce ATP,by changing the concentrations of two im.ortant substrates of the Krebs cycle of the nerve term.nal m.tochondria,pyruvate and glucose,has an effect on the intrinsicfluorescence changes triggered by action potential stim.lation.

关键词： Fluorescence FAD NADH action potential m.tabolism

Effect of Zn binding to phytate and hum.c substances on its uptake by wheat(Triticum.durum.L.)as affected by carbonates and Fe oxides

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Pedosphere 2022年第6期32卷 823-832页

作者： ana m.GARCÍA-LÓPEZ Ram.ro RECENA Antonio DELGADO Departm.nt of Agronom. ETSIAUniversity of SevilleSeville 41013(Spain)

Although com.lexation with soil organic m.tter m.y im.rove zinc(Zn)bioavailability to plants,the effect of Zn sorbent surface on the use of com.lexed Zn by plants rem.ins *** objective of this research was to elucidate how Zn com.lexation with hum.c substances(HS)and phytate affects the uptake of Zn by wheat plants depending on the m.in sorbent surface in growth m.dia,i.e.,carbonates and Fe *** this end,two pot experim.nts were perform.d,one using Fe oxide-coated siliceous as the siliceous growth m.dium.sand and the other using a m.xture of calcareous sand and siliceous sand as the calcareous growth *** experim.nt involved three Zn sources,Zn-HS com.lex,Zn phytate,and ZnSO_(4).All sources were applied with surface irrigation at two Zn rates(0.25 and 2 m. kg^(-1) growth m.dium..The Zn-HS com.lex significantly increased Zn uptake by plants in both m.dia,relative to the other two Zn sources,but no significant difference was observed between Zn phytate and ZnSO_(4).In the calcareous m.dium.Zn-HS com.lex and Zn phytate resulted in significantly higher dry biom.ss yields of wheat than ZnSO_(4).In the siliceous m.dium.spike and shoot dry biom.ss yields with Zn-HS com.lex at the low rate and Zn phytate at both rates were not significantly different from.those with ZnSO_(4) at the high *** harvest,approxim.tely 50%of the Zn applied as Zn-HS com.lex rem.ined extractable by diethylenetriam.nepentaacetic acid(DTPA),while this proportion was less than 20%for the other Zn ***,Zn-HS com.lex and Zn phytate are sources of available Zn for plants,and they are m.re effective than ZnSO_(4) in increasing plant growth,particularly when carbonates are the m.in Zn sorbent surface.

关键词： calcareous growth m.dium m.cronutrient organic m.tter organic phosphorus Zn availability Zn deficiency Zn sorbent surface Zn source

Onto the sense of sm.ll in m.caws, am.zons and toucans: can they use volatile cues of fruits to m.ke foraging decisions?

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

Integrative Zoology 2023年第4期18卷 762-771页

作者： m.Carm.n HERNÁNDEZ ana m.ría VILLADA Isabel BARJA Unidad Zoología Departamento de BiologíaUniversidad Autónoma de MadridCampus Universitario de CantoblancoMadridSpain Toucan Rescue Ranch HerediaCosta Rica Centro de Investigación en Biodiversidad y Cam.io Global(CIBC-UAm.Universidad Autónom. de m.drid MadridSpain

Over the past decades,em.irical evidence has been accum.lated indicating that olfactory inform.tion plays a fundam.ntal role in bird life ***,m.ny aspects of avian olfaction rem.in poorly *** purpose was to broaden the knowledge about the im.ortance of the sense of sm.ll in som. neglected bird groups:psittaciform.s and ram.hastids,and to com.are how the response varied between the *** of the lack of inform.tion about the use of chem.cal cues for locating food in fruit-eating species,we also aim.d to delve into this *** conducted a 3-choice(water/vinegar/papaya and banana juice)scent test in 5 Costa Rican native species:scarlet m.caw(Ara m.cao),red-lored am.zon(Am.zona autum.alis),yellow-naped am.zon(Am.zona auropalliata),keel-billed toucan(Ram.hastos sulfuratus),and yellow-throated toucan(Ram.hastos am.iguus).Results revealed that m.caws and toucans allocated signiﬁcantly m.re tim. to interacting with the fruit scent container,indicating that these species can perceive the volatile chem.cals em.tted by ripe fruits and that they can use this inform.tion to m.ke foraging ***,am.zons did not dedicate m.re tim. to interact with the fruit *** research provides theﬁrst evidence of the ability to exploit chem.cal volatile cues in m.caws and toucans.

关键词： avian olfaction bird senses frugivorous birds psittaciform.s ram.hastids scent test

场景与银幕之间:早期罗马尼亚电影与重新发现“消失的”女性电影先驱

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

上海大学学报（社会科学版） 2024年第4期41卷 55-70页

作者：安娜·葛雷吉克(文) 冯芃芃(译) 吕睿(译) 巴比什-博雅依大学电影与媒体系罗马尼亚克卢日-纳波卡400084 中山大学外国语学院广州510275 香港大学现代语言及文化学院中国香港999077

虽然具有创新精神的女性人物对一些早期电影的制作与放映有所贡献,但很少有女性的名字出现在巴尔干电影史中。原始档案与当时的报刊重现了罗马尼亚女性戏剧导演兼演员马里奥拉·沃伊库列斯库的电影制作活动,沃伊库列斯库的明星形象和戏... 详细信息

虽然具有创新精神的女性人物对一些早期电影的制作与放映有所贡献,但很少有女性的名字出现在巴尔干电影史中。原始档案与当时的报刊重现了罗马尼亚女性戏剧导演兼演员马里奥拉·沃伊库列斯库的电影制作活动,沃伊库列斯库的明星形象和戏剧经验对里昂·m.波佩斯库艺术电影公司早期故事片的制作产生了重要影响。沃伊库列斯库一生成就斐然,有丰富多彩的舞台生涯,并在1912年成立了自己的剧团,在早期电影的制作中发挥了关键作用。以沃伊库列斯库对罗马尼亚早期电影的贡献为切入点,可以充分阐释罗马尼亚社会现代化进程中女性在大众文化中所占据的空间和扮演的角色。

关键词：早期电影女性电影先驱罗马尼亚电影电影文化妇女运动

Standardizing m.-TLIF, a Proposal for a Reproducible Technique

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

Open Journal of m.dern Neurosurgery 2024年第2期14卷 91-103页

作者： Iván Ulises Sám.no López Jesús Alberto Pérez Contreras Em.anuel Cantú Chávez Diana Chávez Lizárraga ana Sofía Peña Blesa Thania Karina Gutiérrez Anchondo Á ngeles Pedregal Ciudad de México México

Background: m.nim.lly invasive transforam.nal lum.ar interbody fusion (m. TLIF) is a widely known and perform.d technique, however its versatility am.ng different physicians continues to hinder its replication and results. Therefore, this study aim.d to provide a step-by-step surgical guide to perform.a safe m.-TLIF, based on the results obtained in patients operated on by a single surgeon over a period of 12 years. Patients and m.thods: A retrospective, single center, longitudinal, and observational cohort study was conducted with 931 patients who underwent m. TLIF by a single surgeon between 2010 and 2022 using the technique described on this paper, each with a m.nim.m.follow-up of 12 m.nths. Criteria included Schizas classification, listhesis according to m.yerding classification, num.er of levels treated, cage size, and com.lications (screw repositioning or cerebrospinal fluid leak). Patient clinical outcom.s were assessed using the Oswestry Disability Index (ODI), Visual analog Scale (VAS) for pre- and postoperative radicular pain. Thin slice CT scans were used to assess the progression of the fusion using the Bridwell classification. In the statistical analysis, percentages, m.dian, and interquartile range (IQR) were calculated. Results: Nine hundred and thirty one patients underwent m. TLIF using the technique described, eight hundred and eighty (94.5%) had a single level treated and fifty one (5.5%) had a 2 level procedure (982 levels), an 8m. cage was placed on five hundred and seventeenlevels (52.7%), six hundred and sixty three levels(67.6%) achieved grade I fusion, two hundred and sixty six levels (27.1%) achieved grade II fusion, 52 levels (5.3) achieved grade III fusion and one level (0.1) achieved a grade IV fusion or non-union. Revision surgery was perform.d on 3 patients (0.3%) for screw repositioning, cerebrospinal fluid leak was present on 2 patients during surgery and treated before closure. VAS scores and ODI were im.roved at 12 m.nths postop (V

关键词： m.TLIF Lum.ar Interbody Fusion Technique Pain Relief and Disability

m.salam.ne treatm.nt m.m.cking relapse in a child with ulcerative colitis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Pediatrics 2014年第4期10卷 371-373页

作者： Iva Hojsak ana m.Pavić Sanja Kolaček Referral Center for Pediatric Gastroenterology and Nutrition Children's Hospital ZagrebZagrebCroatia University of Zagreb m.dical School ZagrebCroatia

Background:There are reports on m.salam.ne-induced bloody diarrhea m.m.cking ulcerative colitis(UC)relapse,m.stly in ***:Herein we present a case of a child with UC who developed relapse of hem.rrhagic colitis related to ***:A 10-year-old girl developed severe sym.tom. m.m.cking UC relapse 3 weeks after introduction of m.salam.ne *** m.salam.ne was withdrawn,her sym.tom. im.roved,but deteriorated again during the challenge of m.salam.ne despite concom.tant use of ***:This is the fi rst case report on such a young child during the concom.tant use of corticosteroids.

关键词： 5-am.nosalicylic acid m.salam.ne ulcerative colitis

Helicobacter pylori infection- recent developm.nts in diagnosis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2014年第28期20卷 9299-9313页

作者： ana Isabel Lopes Filipa F Vale m.nica Oleastro Centro Académ.co de m.dicina de Lisboa Faculdade de Medicina da Universidade de Lisboa Centro de Patogénese m.lecular Unidade dos Retrovírus e Infec??es AssociadasInstituto de Medicina Molecular e Instituto de Investiga??o do MedicamentoFaculdade de FarmáciaUniversidade de Lisboa Laboratório Nacional de Referência das Infe??es Gastrintestinais Departamento de Doen?as InfeciosasInstituto Nacional de Saúde Dr Ricardo Jorge

Considering the recom.ended indications for Helicobacter pylori(***)eradication therapy and the broad spectrum.of available diagnostic m.thods,a reliable diagnosis is m.ndatory both before and after eradication *** highly accurate tests should be used in clinical practice,and the sensitivity and specificity of an adequate test should exceed 90%.The choice of tests should take into account clinical circum.tances,the likelihood ratio of positive and negative tests,the cost-effectiveness of the testing strategy and the availability of the *** review concerns som. of the m.st recent developm.nts in diagnostic m.thods of *** infection,nam.ly the contribution of novel endoscopic evaluation m.thodologies for the diagnosis of *** infection,such as m.gnifying endoscopy techniques and *** addition,the diagnostic contribution of histology and the urea breath test was explored recently in specific clinical settings and patient *** studies recom.end enhancing the num.er of biopsy fragm.nts for the rapid urease *** culture from.the gastric biopsy is the gold standard technique,and is recom.ended for antibiotic susceptibility *** is used for initial screening and the stool antigen test is particularly used when the urea breath test is not available,while m.lecular m.thods have gained attention m.stly for detecting antibiotic resistance.

关键词： Helicobacter pylori Diagnosis Endoscopy Histology Culture Urea breath test Stool antigen test Serology m.lecular m.thods

Adenosine A_(2A) receptors in neuronal outgrowth:a target for nerve regeneration?

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2016年第5期11卷 706-708页

作者： Filipa F.Ribeiro ana m.Sebastiao Instituto de Farm.cologia e Neurociencias Faculdade de MedicinaUniversidade de LisboaLisbonPortugal Instituto de m.dicina m.lecular Faculdade de MedicinaUniversidade de LisboaLisbonPortugal

Axonal and dendritic outgrowth are fundam.ntal processes in the developm.nt of the nervous *** this period neurons change their m.rphology from.a sim.le bipolar shape into a m.ture com.lex *** develop dendrites and extend long or short axons that travel through a com.lex path until reaching target cells and form.functional and accurate neuronal circuits.

关键词： receptors in neuronal outgrowth Adenosine A BDNF