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Crypt abscess-associated microbiota in inflammatory bowel disease and acute self-limited colitis

World Journal of Gastroenterology 2010年第5期16卷 583-587页

作者： Harry Sokol Nadia Vasquez Nadia Hoyeau-Idrissi Philippe Seksik Laurent Beaugerie anne lavergne-slove Philippe Pochart Philippe Marteau Gastro-enterology and Nutrition Department Saint Antoine HospitalPierre et Marie Curie-Paris6 UniversityAP-HP184 rue du Faubourg Saint-Antoine75571ParisFrance Laboratoire de Biologie EA 3199 CNAM2 rue Conte75003ParisFrance Pathology Department Saint Antoine HospitalPierre et Marie Curie-Paris6 UniversityAP-HP184 rue du Faubourg Saint-Antoine75571ParisFrance Gastro-enterology and Nutrition Department Saint Antoine HospitalPierre et Marie Curie-Paris6 UniversityAP-HP184 rue duFaubourg Saint-Antoine75571ParisFrance Pathology Department Lariboisière Hospital&Paris 7 University2 rue Ambroise-Paré75475ParisFrance Medicosurgical Department of Digestive Diseases Lariboisière HospitalAP-HP&Paris 7 University2rue Ambroise-Paré75475ParisFrance

AIM:To evaluate whether crypt abscesses frominflammatory bowel disease(IBD)patients containbacteria and to establish their ***:We studied 17 ulcerative colitis patients,11 Crohn's disease patients,7 patients with acute selflimited colitis(ASLC)and normal colonic biopsies from5 subjects who underwent colonoscopy for colon cancer screening.A fluorescent in situ hybridization techniquewas applied to colonic biopsies to assess the microbiotacomposition of the crypts and crypt ***:Crypts colonized by bacteria were observedin 42.9%and 3.6%of ASLC and IBD patients,respectively(P=0.019).Crypt abscesses colonized bybacteria were observed in 28.6%and 0.0%of ASLCand IBD patients,respectively(P=0.035).CONCLUSION:These results do not support thehypothesis that crypt abscesses in IBD are the resultof localized dysbiosis arising from persistence of livingbacteria colonizing the crypts.

关键词： Inflammatory bowel diseases Crohn’sdisease Ulcerative colitis Crypt abscess Microbiota

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Isoform-and cell-state-specific APOE homeostasis and function

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Neural Regeneration Research 2024年第11期19卷 2456-2466页

作者： Karina Lindner anne-Claude Gavin Department of Cell Physiology and Metabolism Faculty of MedicineUniversity of GenevaGenevaSwitzerland Diabetes Center Faculty of MedicineUniversity of GenevaGenevaSwitzerland

Apolipoprotein E is the major lipid transporter in the brain and an important player in neuron-astrocyte metabolic *** ensures the survival of neurons under stressful conditions and hyperactivity by nourishing and detoxifying *** E polymorphism,combined with environmental stresses and/or age-related alterations,influences the risk of developing late-onset Alzheimer’s *** this review,we discuss our current knowledge of how apolipoprotein E homeostasis,*** synthesis,secretion,degradation,and lipidation,is affected in Alzheimer’s disease.

关键词： Alzheimer’s disease apolipoprotein E autophagy cholesterol lipid detoxification lipid transport lysosomal failure metabolic impairment triacylglycerol

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Chrononutrition in traditional European medicine-Ideal meal timing for cardiometabolic health promotion

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Journal of Integrative Medicine 2024年第2期22卷 115-125页

作者： Nora Selena Eberli Ludivine Colas anne Gimalac Department of Traditional European Medicine Navi Institute of Research in Integrative HealthEcole Professionnelle Superieure de NaturopathieCentre Andre Henzelin1066 EpalingesSwitzerland

Meal timing plays a crucial role for cardiometabolic health,given the circadian regulation of cardiometabolic ***,to the best of our knowledge,no concept of meal timing exists in traditional European medicine(TEM).Therefore,in this narrative review,we aim to define the optimal time slot for energy intake and optimal energy distribution throughout the day in a context of TEM and explore further *** reviewing literature published between 2002 and 2022,we found that optimal timing for energy intake may be between 06:00 and 09:00,12:00 and 14:00,and between 15:00 and18:00,with high energy breakfast,medium energy lunch and low energy dinner and possibly further adjustments according to one’s chronotype and ***,timing and distribution of energy intake may serve as a novel therapeutic strategy to optimize coction,a concept describing digestion and metabolism in TEM.

关键词： Circadian rhythm Chrononutrition Naturopathy Traditional European medicine Metabolic syndrome Meal timing

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A numerical model to simulate the transient frictional viscoelastic sliding contact

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Friction 2024年第2期12卷 319-339页

作者： Dongze WANG Gregory de BOER anne NEVILLE Ali GHANBARZADEH School of Mechanical Engineering University of LeedsLeeds LS29JTUK

Sliding motion has always been one of the major concerns when it comes to the analysis of viscoelastic contact problems.A new model simulating the transient sliding contact of smooth viscoelastic surfaces is developed in this *** taking the dry contact friction and the coupling between shear tractions and normal pressure into account,the effect of the early partial slip period,which is often neglected in the study of viscoelastic sliding contact problems,is investigated *** with solutions based on the frictionless assumption,the steady-state pressure profile is found to be slightly different under the effect of the partial slip regime,including a lower peak pressure and the shift of the contacting region in the direction opposite to the sliding ***,the time required for the viscoelastic contact to reach its steady state is delayed owing to the partial slip period preceding the global sliding motion.

关键词： contact mechanics frictional sliding viscoelasticity viscoelastic friction

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Templated synthesis of transition metal phosphide electrocatalysts for oxygen and hydrogen evolution reactions

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Journal of Energy Chemistry 2024年第2期89卷 646-669,I0014页

作者： Rose anne Acedera Alicia Theresse Dumlao DJ Donn Matienzo Maricor Divinagracia Julie anne del Rosario Paraggua Po-Ya Abel Chuang Joey Ocon Laboratory of Electrochemical Engineering(LEE) Department of Chemical EngineeringUniversity of the PhilippinesDilimanQuezon City 1101Philippines Mechanical Engineering University of CaliforniaMercedCA 95343USA Energy Engineering Program College of EngineeringUniversity of the PhilippinesDilimanQuezon City 1101Philippines

Transition metal phosphides(TMPs)have been regarded as alternative hydrogen evolution reaction(HER)and oxygen evolution reaction(OER)catalysts owing to their comparable activity to those of noble metal-based *** have been produced in various morphologies,including hollow and porous nanostructures,which are features deemed desirable for electrocatalytic *** synthesis routes are often responsible for such *** paper reviews the latest advances and existing challenges in the synthesis of TMP-based OER and HER catalysts through templated methods.A comprehensive review of the structure-property-performance of TMP-based HER and OER catalysts prepared using different templates is *** discussion proceeds according to application,first by HER and further divided among the types of templates used-from hard templates,sacrificial templates,and soft templates to the emerging dynamic hydrogen bubble *** catalysts are then reviewed and grouped according to their ***,prospective research directions for the synthesis of hollow and porous TMP-based catalysts,such as improvements on both activity and stability of TMPs,design of environmentally benign templates and processes,and analysis of the reaction mechanism through advanced material characterization techniques and theoretical calculations,are suggested.

关键词： OER HER Transition metal phosphide Templated synthesis Electrocatalysts

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Assessing gully erosion and rehabilitation using multi temporal LiDAR DEMs:Case study from the Great Barrier Reef catchments,Australia

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International Soil and Water Conservation Research 2024年第1期12卷 184-199页

作者： Sana Khan Rebecca Bartley anne Kinsey-Henderson Aaron Hawdon The Commonwealth Scientific and Industrial Research Organisation(CSIRO) Environment1 James Cook DrDouglas4814Australia The Commonwealth Scientific and Industrial Research Organisation(CSIRO) EnvironmentGPO Box 2583BrisbaneQLD4001Australia

Millions of dollars are being spent on gully rehabilitation to help reduce excess fine sediment delivery to the Great Barrier Reef(GBR).There is an urgent need for(i)prioritisation of active gullies for rehabilitation and(ii)the development of methodologies to inform the effectiveness of *** this study we analyse DEMs of Difference derived from 0.5 m resolution 2-3 year interval multi-temporal LiDAR data collected pre and post rehabilitation at three variable gully morphologies in the Burdekin *** analysis indicates that the highest annual average fine sediment erosion rates for the untreated control gullies occur at the linear gully(53.38 t ha^(-1)y^(-1))followed by linear-alluvial gully(34.24 t ha^(-1)y^(-1))and least at the alluvial gully(14.41 t ha^(-1)y^(-1)).The proportional loss or export of fine sediment from the gullies in their un-treated condition ranges from∼68 to 90%of what is eroded,and when the gullies are treated the proportion of fine sediment that is retained in the gully proportional to what is eroded increases to∼60%at all *** pre-treatment baseline erosion rates,and additional post treatment LiDAR captures,it is difficult to quantify the treatment *** results offer insights in the erosion mechanisms within different geomorphic gully morphologies and rehabilitation effects in these erosional *** study provides crucial knowledge of gully dynamics that can be coupled with other lines of evidence for better prioritisation of rehabilitation in the GBR catchments.

关键词： Digital elevation models (dis)connectivity Restoration Geomorphic change detection Geomorphic effectiveness GIS

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Perspectives for delivery of therapeutics by extravasation of biodegradable microspheres in the brain

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Neural Regeneration Research 2024年第5期19卷 969-970页

作者： anne-Eva van der Wijk Ed VanBavel Amsterdam UMC location University of Amsterdam Department of Biomedical Engineering and PhysicsAmsterdamThe Netherlands Amsterdam Neuroscience Neurovascular Disorders ProgramAmsterdamThe Netherlands Amsterdam Cardiovascular Sciences Microcirculation ProgramAmsterdamThe Netherlands

Development of therapeutics for brain diseases has remained challenging,in particular due to the difficulty of passing the blood-brain *** a result,the current arsenal of therapeutics targeting the brain is limited to small,lipid-soluble drugs and there is a lack of options for treating neuroblastomas,Alzheimer’s disease,and many other devastating *** the advances in strategies for crossing the blood-brain barrier such as the use of nanoparticles(Hersh et al.,2022;Duan et al.,2023),such delivery systems have not yet reached clinical ***,novel platforms for the transport of therapeutics across the blood-brain barrier remain highly *** specifically holds for large molecules such as monoclonal antibodies and recombinant proteins,as well as nucleotide-based therapeutics and cell *** efforts in this field are increasing exponentially,with thousands of publications in the last few years.

关键词： therapeutics holds spite

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Probiotics: Shaping the gut immunological responses

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World Journal of Gastroenterology 2024年第15期30卷 2096-2108页

作者： Eirini Filidou Leonidas Kandilogiannakis anne Shrewsbury George Kolios Katerina Kotzampassi Faculty of Medicine Laboratory of PharmacologyDemocritus University of ThraceAlexandroupolis 68100Greece Department of Surgery Aristotle University of ThessalonikiThessaloniki 54636Greece

Probiotics are live microorganisms exerting beneficial effects on the host’s health when administered in adequate *** the most popular and adequately studied probiotics are bacteria from the families Lactobacillaceae,Bifidobacteriaceae and *** of them have been shown,both in vitro and in vivo studies of intestinal inflammation models,to provide favorable results by means of improving the gut microbiota composition,promoting the wound healing process and shaping the immunological *** intestinal conditions,such as inflammatory bowel diseases(IBD),are characterized by an imbalance in microbiota composition,with decreased diversity,and by relapsing and persisting inflammation,which may lead to mucosal *** the results of the clinical studies investigating the effect of probiotics on patients with IBD are still controversial,it is without doubt that these microorganisms and their metabolites,now named postbiotics,have a positive influence on both the host’s microbiota and the immune system,and ultimately alter the topical tissue *** influence is achieved through three axes:(1)By dis-placement of potential pathogens via competitive exclusion;(2)by offering protection to the host through the secretion of various defensive mediators;and(3)by supplying the host with essential *** will analyze and discuss almost all the in vitro and in vivo studies of the past 2 years dealing with the possible favorable effects of certain probiotic genus on gut immunological responses,highlighting which species are the most beneficial against intestinal inflammation.

关键词： Probiotics Lactobacillaceae Bifidobacteriaceae Saccharomyces Intestinal inflammation Immune responses

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Comparative Analysis of the Essential Oil of the Underground Organs of Valeriana spp. from Different Countries

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Phyton-International Journal of Experimental Botany 2024年第7期93卷 1365-1382页

作者： Ain Raal Valeriia Kokitko Vira Odyntsova anne Orav Oleh Koshovyi Institute of Pharmacy University of TartuTartu50411Estonia Zaporizhzhia State Medical and Pharmaceutical University Zaporizhzhia69035Ukraine Institute of Chemistry Tallinn University of TechnologyTallinn12618Estonia National University of Pharmacy Kharkiv61002Ukraine

Valeriana ofﬁcinalis *** a plant from the Caprifoliaceae family,which is widely distributed in various parts of the world,especially in Europe and *** species of Valeriana are distinguished by their ability to synthesize essen-tial oil,which has a powerful effect on the physiological and mental aspects of the human *** aim was to study the qualitative and quantitative composition of essential oil from valerian roots,collected in different coun-tries,using the gas chromatography method,and to establish marker compounds for valerian species.13 samples of commercial roots with rhizomes of ***ﬁcinalis from nine countries of the world and a sample of Valeriana pratensis and Valeriana stolonifera growing in Ukraine were selected for the *** essential oil was obtained from dried valerian roots by the distillation method described in the European *** determine the component composition of the essential oils of the selected samples,the methods of gas chromatography with a mass spectrometric detector and capillary gas chromatography were *** commercial samples of ***ﬁci-nalis from different countries yielded 0.21%–1.03%of essential *** six of 13 samples contained essential oil in an amount that satisﬁes the requirement of the European Pharmacopoeia standard(not less than 4 mL/kg).150 compounds were identiﬁed in the essential oils of 13 samples of ***ﬁcinalis essential *** range and average content and coefﬁcients of variation of the identiﬁed compounds were *** principal com-pounds of ***ﬁcinalis essential oils were bornyl acetate(1.6%–27.1%),valeranone(0.5%–17.9%),valerenal(0%–14.7%),camphene(0%–14.6%),α-fenchene(0%–10.6%),and valerenic acid(0%–8.5%).The samples of *** and *** yielded rather high levels of essential oil(1.18%and 0.93%,respectively).Three chemotypes of ***ﬁcinalis samples were determined-bornyl acetate/valerenal,valeranone,and isovaleric *** composition of the three essential

关键词： Valeriana ofﬁcinalis Valeriana pratensis Valeriana stolonifera volatile compounds terpenoids chemotype

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Self‑Healing Dynamic Hydrogel Microparticles with Structural Color for Wound Management

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Nano-Micro Letters 2024年第11期16卷 177-190页

作者： Li Wang Xiaoya Ding Lu Fan anne M.Filppula Qinyu Li Hongbo Zhang Yuanjin Zhao Luoran Shang Department of General Surgery Ruijin HospitalShanghai Jiaotong University School of MedicineShanghai 200025People’s Republic of China Department of Rheumatology and Immunology Nanjing Drum Tower HospitalSchool of Biological Science and Medical EngineeringSoutheast UniversityNanjing 210096People’s Republic of China Pharmaceutical Sciences Laboratory Åbo Akademi University20520 TurkuFinland Oujiang Laboratory(Zhejiang Lab for Regenerative Medicine Vision and Brain Health)Wenzhou InstituteUniversity of Chinese Academy of SciencesWenzhou 325001People’s Republic of China Shanghai Xuhui Central Hospital Zhongshan‑Xuhui Hospitaland the Shanghai Key Laboratory of Medical Epigeneticsthe International Co‑laboratory of Medical Epigenetics and Metabolism(Ministry of Science and Technology)Institutes of Biomedical SciencesFudan UniversityShanghai 200032People’s Republic of China

Chronic diabetic wounds confront a significant medical challenge because of increasing prevalence and difficult-healing *** is vital to develop multifunctional hydrogel dressings,with well-designed morphology and structure to enhance flexibility and effectiveness in wound *** achieve these,we propose a self-healing hydrogel dressing based on structural color microspheres for wound *** microsphere comprised a photothermal-responsive inverse opal framework,which was constructed by hyaluronic acid methacryloyl,silk fibroin methacryloyl and black phosphorus quantum dots(BPQDs),and was further re-filled with a dynamic *** dynamic hydrogel filler was formed by Knoevenagel condensation reaction between cyanoacetate and benzaldehyde-functionalized dextran(DEX-CA and DEX-BA).Notably,the composite microspheres can be applied arbitrarily,and they can adhere together upon near-infrared irradiation by leveraging the BPQDs-mediated photothermal effect and the thermoreversible stiffness change of dynamic ***,eumenitin and vascular endothelial growth factor were co-loaded in the microspheres and their release behavior can be regulated by the same ***,effective monitoring of the drug release process can be achieved through visual color *** microsphere system has demonstrated desired capabilities of controllable drug release and efficient wound *** characteristics suggest broad prospects for the proposed composite microspheres in clinical applications.

关键词： Black phosphorus Structural color Dynamic hydrogel Inverse opal Wound management

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