检索结果-南通市图书馆

Insect Science 2023年第3期30卷 857-866页

作者： Mikhail V.Kozlov Vitali Zverev Tobias M.Sandner Erik J.van Nieukerken elena l.zvereva Department of Biology University of TurkuTurkuFinland Department of Biology Philipps-Universitat MarburgMarburgGermany Naturalis Biodiversity Center Leidenthe Netherlands

Damage to plant communities imposed by insect herbivores generally decreases from low to high *** decrease is routinely attributed to declines in herbivore abundance and/or diversity,whereas latitudinal changes in per capita food consumption remain virtually ***,we tested the hypothesis that the lifetime food consumption by a herbivore individual decreases from low to high latitudes due to a temperature-driven decrease in metabolic *** 2016 to 2019,we explored latitudinal changes in multiple characteristics of linear(gallery)mines made by larvae of the pygmy moth,Stigmella lapponica,in leaves of downy birch,Betula *** mined leaves were larger than intact leaves at the southern end of our latitudinal gradient(at 60°N)but smaller than intact leaves at its northern end(at 69°N),suggesting that female oviposition preference changes with *** latitudinal changes were observed in larval size,mine length or area,and in per capita food consumption,but the larval feeding efficiency(quantified as the ratio between larval size and mine size)increased with ***,*** larvae consumed less foliar biomass at higher latitudes than at lower latitudes to reach the same *** on space-for-time substitution,we suggest that climate warming will increase metabolic expenses of insect herbivores with uncertain consequences for plant-herbivore interactions.

关键词： Betula pubescens climate change food quality insect herbivory metabolic expenses oviposition preference

High tolerance to simulated root herbivory in hydroponically grown cuttings of Salix phylicifolia

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 Forestry Research 2021年第6期32卷 2661-2668页

作者： Mikhail V.Kozlov elena l.zvereva Department of Biology University of Turku20014TurkuFinland

The shortage of information regarding the effects of root damage on forest plants,especially trees and shrubs,is the most critical gap in our knowledge of belowground insect *** study examines how the tea-leaved willow,Salix phylicifolia,responds to simulated root herbivory and how nutrient availability affects these *** grown cuttings were used to precisely apply the desired levels of root ***:shoot ratios increased proportionally to the intensity of root damage,whereas specific leaf area,leaf water content and chlorophyll fluorescence were not *** removal of 2-64%of roots once in early summer and the removal of 25%of roots three times during the summer did not change biomass production by *** repeated removal of 50 and 75%of roots decreased shoot biomass and,to a lesser extent,total root *** tolerance of tea-leaved willow to root damage was greater in low nutrient treatment than in high nutrient treatment,thus supporting the Growth Rate *** to this model,in low resource conditions plants do not attain their maximum growth rate and therefore have a higher capacity for regrowth after *** conclude that,in the absence of water limitations,tea-leaved willow shows high tolerance to root losses and is unlikely to be affected by realistic levels of root herbivory.

关键词： Belowground herbivory Chlorophyll fluorescence leaf water content Plant growth

Climate shapes the spatiotemporal variation in color morph diversity and composition across the distribution range of Chrysomela lapponica leaf beetle

在线全文

学校读者我要写书评

暂无评论

Insect Science 2022年第3期29卷 942-955页

作者： Mikhail V.Kozlov Zowi Oudendijk Anders Forsman Vojtech lanta Maxwell V.l.Barclay Vladimir I.Gusarov Bert Gustafsson Zheng-Zhong Huang Oksana Y.Kruglova Yuri M.Marusik Yuri E.Mikhailov Marko Mutanen Alexander Schneider lukas Sekerka Maksim E.Sergeev Vitali Zverev elena l.zvereva Department of Biology University of TurkuTurkuFinland Department of Animal Ecology and Physiology Radboud UniversityNijmegenThe Netherlands Department of Biology and Environmental Science Linnaeus UniversityKalmarSweden Institute of Botany The Czech Academy of SciencesDukelskaTrebohCzech Republic Department of life Sciences Natural History MuseumLondonUnited Kingdom Natural History Museum University of OsloOsloNorway Departmant of Zoology Swedish Museum of Natural HistoryStockholmSweden elnsititute of Zoology Chinese Academy of SciencesBeijingChina Faculty of Biology Belarusian State UniversityMinskBelarus Department of Biocenology Institute for Biological Problems of the NorthFar East Branch of the Russian Academy of SciencesMagadanRussia Department of Zoology&Entomology University of the Free StateBloemfonteinSouth Africa Department of Ecology&Nature Management Ural State Forest Engineering UniversityYekaterinburgRussia Ecology and Genetics Research Unit University of OuluOuluFinland Department of Terrestrial Zoology Senckenberg Research Institute and Natural History MuseumFrankfurt am MainGermany Department of Entomology National MuseumPrague 9CirkusovaCzech Republic Federal Scientific Center of the East Asia Terrestrial Biodiversity Far East Branch of the Russian Academy of SciencesVladivostokRussia

Color polymorphism offers rich opportunities for studying the eco-evolutionary mechanisms that drive the adaptations of local populations to heterogeneous and changing *** explored the color morph diversity and composition in a Chrysomela lapponica leaf beetle across its entire distribution range to test the hypothesis that environmental and climatic variables shape spatiotemporal variation in the phenotypic structure of a polymorphic *** obtained information on 13617 specimens of this beetle from museums,private collections,and *** specimens(collected from 1830-2020)originated from 959 localities spanning 33°latitude,178°longitude,and 4200 m *** classified the beetles into five color morphs and searched for environmental factors that could explain the variation in the level of polymorphism(quantified by the Shannon diversity index)and in the relative frequencies of individual color *** highest level of polymorphism was found at high latitudes and *** color morphs differed in their climatic requirements;composition of colour morphs was independent of the geographic distance that separated populations but changed with collection year,longitude,mean July temperature and betweenyear temperature *** proportion of melanic beetles,in line with the thermal melanism hypothesis,increased with increasing latitude and altitude and decreased with increasing climate *** morph frequencies also declined during the past century,but only at high latitudes and altitudes where recent climate warming was especially *** observed patterns suggest that color polymorphism is especially advantageous for populations inhabiting unpredictable environments,presumably due to the different climatic requirements of coexisting color morphs.

关键词： adaptive polymorphism color morphs evolutionary dynamics geographic variation phenotypic diversity thermal melanism

Novel insights into D-Pinitol based therapies:a link between tau hyperphosphorylation and insulin resistance

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 2024年第2期19卷 289-295页

作者： Dina Medina-Vera Antonio Jesús lópez-Gambero Juan Antonio Navarro Carlos Sanjuan elena Baixeras Juan Decara Fernando Rodríguez de Fonseca Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND UGC Salud MentalMálagaSpain Facultad de Ciencias Universidad de MálagaMálagaSpain CIBER Enfermedades Cardiovasculares(CIBERCV) Hospital Universitario Virgen de la VictoriaUGC del CorazónMálagaSpain University of Bordeaux INSERMNeurocentre MagendieBordeauxFrance Euronutra S.l.Calle Johannes Kepler MálagaSpain Departamento de Bioquímica y Biología Molecular Facultad de MedicinaUniversidad de MálagaMálagaSpain

Alzheimer’s disease is a neurodegenerative disorder characterized by the amyloid accumulation in the brains of patients with Alzheimer’s *** pathogenesis of Alzheimer’s disease is mainly mediated by the phosphorylation and aggregation of tau *** the multiple causes of tau hyperphosphorylation,brain insulin resistance has generated much attention,and inositols as insulin sensitizers,are currently considered candidates for drug *** present narrative review revises the interactions between these three elements:Alzheimer’s disease-tau-inositols,which can eventually identify targets for new disease modifiers capable of bringing hope to the millions of people affected by this devastating disease.

关键词： Alzheimer’s disease cyclin-dependent kinase 5 diabetes D-Pinitol inositols insulin resistance kinases phosphorylation PI3K/Akt tau

The effect of high-flow oxygen via tracheostomy on respiratory pattern and diaphragmatic function in patients with prolonged mechanical ventilation:A randomized,physiological,crossover study

在线全文

学校读者我要写书评

暂无评论

Journal of Intensive Medicine 2024年第2期4卷 202-208页

作者： elena lytra Stelios Kokkoris Ioannis Poularas Dimitrios Filippiadis Demosthenes Cokkinos Dimitrios Exarhos Spyros Zakynthinos Christina Routsi 1st Department of Intensive Care Medical SchoolNational and Kapodistrian University of AthensEvangelismos HospitalAthensGreece Radiology Department Evangelismos HospitalAthensGreece 2nd Radiology Department Medical SchoolNational and Kapodistrian University of AthensAttikon HospitalAthensGreece

Background Compared to conventional oxygen devices,high-flow oxygen treatment(HFOT)through the nasal cannulae has demonstrated clinical *** data exist on whether such effects are also present in HFOT through ***,we aimed to examine the short-term effects of HFOT through tracheostomy on diaphragmatic function and respiratory parameters in tracheostomized patients on prolonged mechanical *** A randomized,crossover,physiological study was conducted in our ICU between December 2020 and April 2021,in patients with tracheostomy and prolonged mechanical *** patients underwent a 30-min spontaneous breathing trial(SBT)and received oxygen either via T-piece or by HFOT through tracheostomy,followed by a washout period of 15-min breathing through the T-piece and receipt of 30-min oxygen with the other modality in a randomized crossover *** the start and end of each session,blood gasses,breathing frequency(f),and tidal volume(VT)via a Wright's spirometer were measured,along with diaphragm ultrasonography including diaphragm excursion and diaphragmatic thickening fraction,which expressed the inspiratory muscle *** Eleven patients were enrolled in whom 19 sessions were uneventfully completed;eight patients were studied twice on two different days with alternate sessions;and three patients were studied *** were randomly assigned to start the SBT with a T-piece(n=10 sessions)or with HFOT(n=9 sessions).With HFOT,VT and minute ventilation(VE)significantly increased during SBT(from[465±119]ml to[549±134]ml,Pl/min to[13.1±4.2]l/min,Ply),but they did not change significantly during SBT with T-piece(from[495±132]ml to[461±123]ml and from[12.8±4.4]ml to[12.0±4.4]ml,respectively);f/VT decreased during HFOT(from[64±31]breaths/(min∙l)to[49±24]breaths/(min∙l),Ply during SBT with T-piece(from[59±28]breaths/(min∙l)to[64±33]breaths/(m

关键词： Diaphragm Diaphragm ultrasonography High-flow oxygen Prolonged mechanical ventilation Tracheostomy

Does the provision of live black soldier fly and yellow mealworm larvae improve Muscovy duck welfare?

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 Animal Science and Biotechnology 2024年第1期15卷 442-455页

作者： Marta Gariglio Sihem Dabbou Manuela Renna Ilaria Biasato Sara Bellezza Oddon Marco Meneguz Raul Daniel Miazzo Stefania Bergagna elena Colombino Elisabetta Macchi Achille Schiavone Department of Veterinary Sciences University of TurinLargo Paolo Braccini 2GrugliascoTorino(TO)10095Italy Center Agriculture Food Environment(C3A) University of TrentoVia Edmund Mach 1San Michele All’AdigeTrento(TN)38098Italy Department of Agricultural Forest and Food SciencesUniversity of TurinLargo Paolo Braccini 2GrugliascoTorino(TO)10095Italy BEF Biosystems s.r.l Via Tancredi Canonico 18/CTorino(TO)10156Italy Unidad de Investigacion Aviar Produccion AvicolaFac.Agr.y Vet.Universidad Nacional de Rio CuartoCordobaArgentina Veterinary Medical Research Institute for Piemonte Liguria and Valle d’AostaVia Bologna 148Torino(TO)10154Italy

Background The provision of environmental enrichments to Muscovy ducks could reduce the expression of the aggressive *** aim of the present study was to evaluate the effects of black soldier fly(BSF)and yellow mealworm(YM)live larva provision on Muscovy duck performance,excreta corticosterone metabolites(ECM),behavior,and blood *** A total of 1263-day-old female Muscovy ducklings were allotted to 18 pens(6 replicates/treatment,7 birds/pen)and assigned to 3 experimental treatments:a control group fed commercial feed,and two experimental treatments fed commercial feed plus the 5%(based on the expected daily feed intake,as fed basis)of BSF and YM live larvae(BSF and YM groups,respectively).A two-phase feeding program was applied:starter(from 3 to 31 days of age)and grower-finisher(from 32 to 55 days of age).The live weight,average daily gain,average daily feed intake,and feed conversion ratio were *** consumption times were collected,and video recordings were performed during 3 periods(P)each day:the hour before(P1),during(P2),and after(P3)the larva *** were evaluated at 3,31,and ***,the total red and white blood cell counts,serum proteins,lipids,and liver and renal function serum enzymes were evaluated on 12 birds/*** The experimental treatment did not affect the growth performance of the birds(P>0.05).larva consumption times were always similar between the two insect species,except at 14–18 days of age,were BSF larvae were consumed faster than YM larvae(Pless walking activity during P2,and preening behavior increased in YM birds during *** C birds increased the attack behavior over the weeks(PP3;Plly,the provision of live BSF and YM larvae significantly reduced the ECM at 55 days of age and the heterophil to lymphocyte ratio(Plusions live BSF and YM larva supplementatio

关键词： Behavior Cairina moschata Environmental enrichment Hermetia illucens Poultry Tenebrio molitor Welfare

Wood anatomy chronologies of Scots pine in the foothills of the Western Sayan(Siberia)

在线全文

学校读者我要写书评

暂无评论

Journal of Forestry Research 2024年第3期35卷 13-27页

作者： elena A.Babushkina Dmitry R.Dergunov Mikhail S.Zharkov liliana V.Belokopytova Dina F.Zhirnova Bao Yang Jingjing liu Xiaomei Peng Eugene A.Vaganov Khakass Technical Institute Siberian Federal UniversityAbakan 655017Russia Institute of Ecology and Geography Siberian Federal UniversityKrasnoyarsk 660036Russia Mathematical Methods and IT Department Siberian Federal UniversityKrasnoyarsk 660036Russia Key laboratory of Desert and Desertification Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000People's Republic of China School of Geographic and Oceanographic Sciences Nanjing UniversityNanjing 210093People's Republic of China Department of Dendroecology V.N.Sukachev Institute of ForestSiberian Branch of the Russian Academy of ScienceKrasnoyarsk 660036Russia

Recent methodological advances in quantitative wood anatomy have provided new insights into the climatic responses of radial growth at the scale of cell structure of tree rings. This study considered long-term chronologies of tracheid measurements, indexed by a novel approach to separate their specific climatic responses from signal recorded in cell production(closely reflected in tree-ring width). To fill gaps in understanding the impact of climate on conifer xylem structure, Scots pine(Pinus sylvestris l.)trees > 200 years old were selected within the forest-steppe zone in southern Siberia. Such habitats undergo mild moisture deficits and the resulting climatic regulation of growth processes. Mean and maximum values of cell radial diameter and cell wall thickness were recorded for each tree *** a low level of climatogenic stress, components of cell chronologies independent of cambial activity were separated to obtain significant climatic signals revealing the timing of the specific stages of tracheid differentiation. Cell expansion lasted from mid-April to July and was impacted similarly to tree-ring width(stimulated by precipitation and stressed by heat), maximum cell size formed late June. A switch in the climatic responses of mean anatomical traits indicated transition to latewood in mid-July. Secondary wall deposition lasted until mid-September, suppressed by end of season temperatures. Generally, anatomical climatic responses were modulated by a less dry May and September compared with summer months.

关键词： Quantitative wood anatomy Cell radial size Cell wall thickness Pinus sylvestris Climatic response

Plant cell wall-mediated disease resistance:Current understanding and future perspectives

在线全文

学校读者我要写书评

暂无评论

Molecular Plant 2024年第5期17卷 699-724页

作者： Antonio Molina lucıa Jorda Miguel Angel Torres Marina Martın-Dacal Diego Jose Berlanga Patricia Fernandez-Calvo elena Gomez-Rubio Sonsoles Martın-Santamarıa Centro de Biotecnología y Genómica de Plantas Universidad Politécnica de Madrid(UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria(INIA/CSIC)Campus de Montegancedo UPMPozuelo de Alarcon(Madrid)Spain Departamento de Biotecnologıa-Biología Vegetal Escuela Técnica Superior de Ingenierıa AgronomicaAlimentarıa y de BiosistemasUPMMadridSpain Centro de Investigaciones Biologicas Margarita Salas Consejo Superior de Investigaciones Científicas(CSIC)Ramiro de Maeztu 928040 MadridSpain Misión Biológica de Galicia Consejo Superior de Investigaciones Científicas(CSIC)Campus de Montegancedo UPMPozuelo de Alarcón(Madrid)Spain

Beyond their function as structural barriers,plant cell walls are essential elements for the adaptation of plants to environmental *** walls are dynamic structures whose composition and integrity can be altered in response to environmental challenges and developmental *** wall changes are perceived by plant sensors/receptors to trigger adaptative responses during development and upon stress *** cell wall damage caused by pathogen infection,wounding,or other stresses leads to the release of wall molecules,such as carbohydrates(glycans),that function as damage-associated molecular patterns(DAMPs).DAMPs are perceived by the extracellular ectodomains(ECDs)of pattern recognition receptors(PRRs)to activate pattern-triggered immunity(PTI)and disease ***,glycans released from the walls and extracellular layers of microorganisms interacting with plants are recognized as microbe-associated molecular patterns(MAMPs)by specific ECD-PRRs triggering PTI *** number of oligosaccharides DAMPs/MAMPs identified that are perceived by plants has increased in recent ***,the structural mechanisms underlying glycan recognition by plant PRRs remain ***,this knowledge is mainly focused on receptors of the lysM-PRR family,which are involved in the perception of various molecules,such as chitooligosaccharides from fungi and lipo-chitooligosaccharides(i.e.,Nod/MYC factors from bacteria and mycorrhiza,respectively)that trigger differential physiological ***,additional families of plant PRRs have recently been implicated in oligosaccharide/polysaccharide *** include receptor kinases(RKs)with leucine-rich repeat and Malectin domains in their ECDs(lRR-MAl RKs),Catharanthus roseus RECEPTOR-lIKE KINASE 1-lIKE group(CrRlK1l)with Malectin-like domains in their ECDs,as well as wall-associated kinases,lectin-RKs,and *** characterization of structural basis of glycans recogniti

关键词： Arabidopsis thaliana cell wall damage-associated molecular patterns DAMPs disease resistance glycans oligosaccharides pattern-triggered immunity PTl pattern recognition receptor PRRs

Nitrate reduction capacity of the oral microbiota is impaired in periodontitis:potential implications for systemic nitric oxide availability

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Oral Science 2024年第1期16卷 52-61页

作者： Bob T.Rosier William Johnston Miguel Carda-Diéguez Annabel Simpson elena Cabello-Yeves Krystyna Piela Robert Reilly Alejandro Artacho Chris Easton Mia Burleigh Shauna Culshaw Alex Mira Department of Genomics and Health FISABIO FoundationCenter for Advanced Research in Public HealthValenciaSpain Department of Biological and Biomedical Sciences Glasgow Caledonian UniversityGlasgowUK Oral Sciences University of Glasgow Dental SchoolSchool of MedicineDentistry and NursingCollege of MedicalVeterinary and Life SciencesUniversity of GlasgowGlasgowUK Sport and Physical Activity Research Institute University of the West of ScotlandBlantyreScotland Instituto de Biomedicina de Valencia Consejo Superior de Investigaciones Científicas(IBV-CSIC)ValenciaSpain CIBER Center for Epidemiology and Public Health MadridSpain

The reduction of nitrate to nitrite by the oral microbiota has been proposed to be important for oral health and results in nitric oxide formation that can improve cardiometabolic conditions. Studies of bacterial composition in subgingival plaque suggest that nitrate-reducing bacteria are associated with periodontal health, but the impact of periodontitis on nitrate-reducing capacity(NRC)and, therefore, nitric oxide availability has not been evaluated. The current study aimed to evaluate how periodontitis affects the NRC of the oral microbiota. First, 16S rRNA sequencing data from five different countries were analyzed, revealing that nitratereducing bacteria were significantly lower in subgingival plaque of periodontitis patients compared with healthy individuals(P ll five datasets with n = 20–82 samples per dataset). Secondly, subgingival plaque, saliva, and plasma samples were obtained from 42 periodontitis patients before and after periodontal treatment. The oral NRC was determined in vitro by incubating saliva with 8 mmol/l nitrate(a concentration found in saliva after nitrate-rich vegetable intake) and compared with the NRC of 15healthy individuals. Salivary NRC was found to be diminished in periodontal patients before treatment(P lthy levels 90 days post-treatment. Additionally, the subgingival levels of nitrate-reducing bacteria increased after treatment and correlated negatively with periodontitis-associated bacteria(P l treatment on the baseline saliva and plasma nitrate and nitrite levels was found, indicating that differences in the NRC may only be revealed after nitrate intake. Our results suggest that an impaired NRC in periodontitis could limit dietary nitrate-derived nitric oxide levels, and the effect on systemic health should be explored in future studies.

关键词： impaired intake nitrate

Evaluation of Clinical Characteristics and Plasma Cortisol Concentrations in Individuals with COVID-19 and Post-COVID Syndrome

在线全文

学校读者我要写书评

暂无评论

Case Reports in Clinical Medicine 2024年第1期13卷 12-24页

作者： David Alejandro García lópez Stephania Ramos Hernández Yamile lópez-Hernández María Argelia lópez luna elena Donaji Ramírez Alvarado Rosa María Ramírez Santoyo Sergio Hugo Sánchez Rodríguez laboratorio de Biología Celular y Neurobiología Universidad Autónoma de Zacatecas México Zacatecas Unidad Académica de Ciencias Químicas Universidad Autónoma de Zacatecas México Zacatecas laboratorio de Metabolómica y Proteómica Universidad Autónoma de Zacatecas México Zacatecas laboratorio de Bacterias y Hongos filamentosos Universidad Autónoma de Zacatecas México Zacatecas

COVID-19 generates systematic alterations in humans both in active stages of infection and over time, called post-COVID syndrome. Cortisol is a hormone that is overexpressed in inflammation and cellular stress processes. Its main function is to return to physiological homeostasis, so its evaluation together with other clinical parameters can allow us to determine the degree of systemic affectation by COVID-19. Objective: To evaluate changes in clinical parameters and plasma cortisol concentrations in patients with active COVID-19 and post-COVID syndrome. Material and Methods: Healthy patients, in stages of mild infection, critical and with post-COVID syndrome, were recruited, obtaining, through clinical diagnoses and interviews, their main clinical characteristics, in addition to plasma, in which cortisol concentrations were determined using competitive ElISA. Results: The critical stage group had higher frequencies of comorbidities, clinical symptoms, as well as more altered laboratory parameters compared to the other subgroups. In the post-COVID syndrome group after the initial infection, most laboratory parameters recovered, however, several clinical symptoms remained latent over time. The determination of cortisol showed an increase in its concentration, being higher in patients in critical stage and with post-COVID syndrome. Conclusion: COVID-19 disease generates clinical alterations that trigger an increase in plasma cortisol. These alterations increase as the stages of infection become more severe and some of them remain altered in patients with post-COVID syndrome.

关键词： COVID-19 Cortisol Post-COVID Syndrome