检索结果-南通市图书馆

Antibacterial, Anti-Inflammatory and Antioxidant Activities of an ACAZY Herbal Formula Used in Traditional Medicine to Treat Respiratory Infections

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Natural Science 2024年第9期16卷 131-145页

作者： Mohamed Bonewendé Belemlilga Bagora Bayala Abdoul Gilchrist Laurent Boly Madinatou Annick Ouédraogo Alida Raissa Boina Boubacar Yaro Florentina Badea Camélia Diguti Moumouni Koala Denise P. Ilboudo Charles Bavouma Sombié Pascal Nadembega jean-marie Compaoré Paul Darga Mahoukèdè Théodora Zohoncon Moussa Ouédraogo Aristide Traore Noufou Ouédraogo Florentina Matei Rasmane Semdé Sylvin Ouédraogo Jacques Simporé Innocent Pierre Guissou Laboratoire de Recherche-Dveloppement de Phytomdicaments et Mdicaments (LR-D/PM) Institut de Recherche en Sciences de la Sant (IRSS) Centre National de la Recherche Scientifique et Technologique (CNRST) Ouagadougou Burkina Faso Centre de Recherche Biomolculaire Pietro Annigoni (CERBA) Ouagadougou Burkina Faso Laboratoire de Biologie Molculaire et de Gntique (LABIOGENE) Universit Joseph KI-ZERBO Ouagadougou Burkina Faso Ecole Normale Suprieure Koudougou Burkina Faso Laboratoire de Dveloppement du Mdicament (LADME) Centre de Formation de Recherche et dExpertises en Sciences du Mdicament (CEA-CFOREM) cole Doctorale Sciences de la Sant (ED2S) Universit Joseph KI-ZERBO Burkina Faso Laboratoire de Microbiologie Applique Universit des Sciences Agronomiques et de Mdecine Vtrinaire (UASMV) de Bucarest en Roumanie Bucharest Romania Dpartement de la mdecine traditionnelle Ministre de la Sant et de lHygine Publique Ouagadougou Burkina Faso Universit Saint Thomas dAquin (USTA) Ouagadougou Burkina Faso

ACAZY is a plant formula used in traditional medicine in Burkina Faso to treat respiratory infections. After phytochemical analysis, this study evaluated extracts’ anti-inflammatory, antioxidant and antibacterial properties from the ACAZY recipe. Three extractions, an aqueous macerate (AM), an aqueous decoction (AD) and an hydroethanolic macerate (HEM) of the ACAZY recipe powder were carried out. Phytochemical screening of the extracts was carried out using high-performance thin-layer chromatography (HPTLC) and the determination of phenolic compounds. The anti-inflammatory potential was assessed in vitro using pro-inflammatory enzyme inhibition tests. 2,2-Diphenyl-1-picrylhydrazyl (DPPH) and Ferric-reducing antioxidant power (FRAP) antioxidant properties were also determined. The antibacterial activity was evaluated on Staphylococcus aureus and Streptococcus pneumoniae strains. Phytochemical analysis revealed the presence of flavonoids, saponins, tannins, anthracenosids, sterols and triterpenes in the extracts. The extracts inhibited pro-inflammatory enzymes by more than 40% at only 100 µg/mL. The extracts also showed potent antibacterial activity with a minimum inhibitory concentration 1 mg/mL on Staphylococcus aureus and 2 mg/mL on Streptococcus pneumoniae. The extracts in the ACAZY formula have shown anti-inflammatory and antioxidant properties in vitro. The AD also showed an antibacterial activity. This justifies its use in traditional medicine to treat acute respiratory infections.

关键词： ACAZY Anti-Inflammatory Antioxidant Antibacterial In Vitro

Modeling and numerical analysis of granite rock specimen under mechanical loading and fire

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

岩石力学与工程学报 2015年第1期34卷 101-108页

作者： Luc Leroy Ngueyep.Mambou Joseph Ndop jean-marie Bienvenu Ndjaka Laboratory of Sciences Material Department of PhysicsFaculty of ScienceUniversity of Yaoundé Department of Mine Mineral Processing and EnvironmentSchool of Geology and Mining EngineeringUniversity of Ngaoundéré Douala Institute of Technology

The effect of ISO 834 fire on the mechanical properties of granite rock specimen submitted to uniaxial loading is numerically investigated. Based on Newton's second law, the rate-equation model of granite rock specimen under mechanical load and fire is established. The effect of heat treatment on the mechanical performance of granite is analyzed at the center and the ends of specimen. At the free end of granite rock specimen, it is shown that from 20 C to 500 C, the internal stress and internal strain are weak; whereas above 500 C, they start to increase rapidly, announcing the imminent collapse. At the center of specimen, the analysis of the internal stress and internal strain reveals that the fi re reduces the mechanical performance of granite signi fi cantly. Moreover, it is found that after 3 min of exposure to fi re,the mechanical energy necessary to fragment the granite can be reduced up to 80%.

关键词： Granite rock specimen High temperature Internal stress Internal strain ISO 834 fire

Trifluoromethyl radical triggered radical cyclization of N-benzoyl ynamides leading to isoindolinones

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China Chemistry 2019年第11期62卷 1542-1546页

作者： Maud Cassé Christian Nisole Héloise Dossmann Yves Gimbert jean-marie Fourquez Laure Haberkorn Cyril Ollivier Louis Fensterbank Sorbonne Université CNRSInstitut Parisien de Chimie MoléculaireIPCM75005 ParisFrance Institut de Recherches Servier 78290 Croissy-sur-SeineFrance Département de Chimie Moléculaire CNRSUniversitéGrenoble Alpes38610 GièresFrance

Under photocatalytic reductive conditions,trifluoromethyl radical addition onto an ynamide followed by cyclization on a benzoyl moiety produces diverse isoindolinone platforms with good *** selectivity of the radical cyclization,N-benzoyl vs.N-benzyl as radical acceptor and the E/Z ratio of isomers have been rationalized by modeling.

关键词： ynamides trifluoromethylation photocatalysis cascade reactions tandem processes isoindolinones modeling

Slow Pyrolysis of Sugarcane Bagasse for the Production of Char and the Potential of Its By-Product for Wood Protection

在线全文

学校读者我要写书评

暂无评论

Journal of Renewable Materials 2021年第1期9卷 97-117页

作者： Febrina Dellarose Boer Jérémy Valette jean-Michel Commandré Mériem Fournier marie-France Thévenon CIRAD UR BioWooEBTA B-114/1673 Rue Jean-François BretonF-34398 MontpellierCedex 5France BioWooEB Universitéde MontpellierCIRADMontpellierFrance AgroParisTech Centre de Nancy Nancy54000France Universitéde Lorraine AgroParisTechINRAUMR SilvaNancyF-54000France

Sugarcane bagasse was pyrolyzed using a laboratory fixed bed reactor to produce char and its by-product(pyrolysis liquid).The pyrolysis experiments were carried out using different temperatures(400℃ and 500℃),heating rate(1℃/min and 10℃/min),and holding time(30 min and 60 min).Char was characterized according to its thermal properties,while the pyrolysis liquid was tested for its anti-fungal and anti-termite *** temperature and heating rate had a significant influence on the char properties and the yield of char and pyrolysis liquid,where a high-quality char and high yield of pyrolysis liquid can be obtained at a temperature of 500℃ and a heating rate of 10℃/*** yield of char and pyrolysis liquid was 28.97%and 55.46%,*** principal compounds of pyrolysis liquid were water,acetic acid,glycolaldehyde,1-hydroxy-2-propanone,methanol,formic acid,levoglucosan,furfural,followed by some phenol compounds and guaiacol *** liquid at a concentration of 0.20%and 0.25%(v/v)caused a 100%inhibition of Coniophora puteana and Trametes versicolor,respectively,when performing inhibition growth tests in Petri *** paper treated with 10%of pyrolysis liquid caused 100%of termite mortality,while only 5.65%–7.03%of the treated filter papers consumed by termites at such *** liquid is potentially effective to be used in the formulation of wood protection against fungi and termites.

关键词： Anti-fungal anti-termite biomass char pyrolysis liquid slow pyrolysis sugarcane bagasse valorization

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

One day in France

One day in France

Evaluation of left atrial remodelling following percutaneous left atrial appendage closure

作者： (1941-)Borzeix jean-marie McAuley Gay

来源：南通市图书馆图书评论

学校读者我要写书评

暂无评论

Journal of Geriatric Cardiology 2017年第8期14卷 496-500页

作者： Zakaria Jalal Xavier Iriart marie-Lou Dinet Olivier Comeloup Xavier Pillois Hubert Cochet jean-Benoit Thambo Department of Paediatric and Adult Congenital Cardiology Bordeaux University Hospital Pessac France Electrophysiology and Heart Modeling Institute IHU Lirye Fondation Bordeaux UniversitO Pessac-Bordeaux France Centre de recherche Cardio-Thoracique de Bordeaux INSERM Bordeaux France Department of Radiology Bordeaux University Hospital Pessac France

Atrial fibrillation prevalence is increasing with age, reaching up to 5% of patients older than 65 years, and is associated with 20%-30% of stroke episodes in that population.

关键词： Atrial fibrillation Left atrial appendage Left atrial remodeling Percutaneous closure

Cardiac Cell Therapy and Tissue Engineered with Autologous Bone Marrow Mesenchymal Cells Improve Myocardial Perfusion. An Evaluation by Pinhole Gated-SPECT

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

生物医学工程学杂志 2005年第S1期22卷 15-16页

作者： Nguyen TRAN Pierre-Yves marie Philippe FRANKEN jean-Fran·ois STOLTZ jean-Pierre VILLEMOT Laboratory of Surgery School Faculty of Medicine-NancyFrance Department of Cell therapy and Tissue Engineering UMR-CNRS7563 Department of Nuclear Medicine-EA344 CHU-NancyFrance Department of Nuclear Medicine AZ-VUB-BrusselsBelgium

Synthesis of P,N-2,2'-biphenyl derivatives with central chirality

在线全文

学校读者我要写书评

暂无评论

Science China Chemistry 2010年第9期53卷 1907-1913页

作者： jean Ludovic POULIQUEN Michael BLANCHET Jérme LASNE marie-Claire ROUDEN Jacques Laboratoire de Chimie Moléculaire et Thioorganique UMR 6507 CNRS-ENSICAEN & Université de Caen-Basse Normandie6 Boulevard du Maréchal Juin14050 CaenInstitut Normand de Chimie MoléculaireMédicinale et Macromoléculaire(INC3M)

Enantiopure 2-(dicyclohexylphosphino)-1,1'-biphenyl derivatives substituted in the 2'-position by a chiral amino group were *** the compound bearing an acyclic chiral chain,the key step was a Suzuki coupling between bromobenzeneboronic acid and N-Boc-iodoaniline whereas an aromatic nucleophilic substitution allowed the introduction of a chiral pyrrolidine in the 2'-position of the biphenyl *** efficiency of the P,N-biphenyl pyrrolidine derivatives as ligands in Pd-catalyzed arylaminations compares well with that of DavePhos ligand.

关键词： 3-aminopyrrolidines Suzuki coupling biphenyls chiral ligand arylamination

Fluoride Hydro-geochemistry Studies:A Case Study from Granitic Aquifer System of Maheshwaram,Hyderabad,India

在线全文

学校读者我要写书评

暂无评论

地学前缘 2009年第S1期16卷 11-12页

作者： Surendra Atal Hélène Pauwels jean-marie Gandolfi Shakeel Ahmed National Geophysical Research Institute(CSIR) BRGM 3 Avenue Claude Guillemin 45060 Orleans IFCGR National Geophysical Research Institute(CSIR)

The impact of population pressure has been observed on several systems,groundwater resource is one among *** and over-exploitation has not only caused the decline of groundwater levels but also causes deterioration in... 详细信息

关键词： fluorine hydro-geochemistry granites hard rock aquifer