检索结果-南通市图书馆

Antioxidant capacity and genoprotective effect of ethanol fruit extract from Detarium microcarpum Guill. and Perr.(Caesalpiniaceae)

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical Biomedicine 2017年第1期7卷 32-36页

作者： AblasséRouamba Maurice ouedraogo Martin Kiendrebeogo Laboratoire de Biochimie et Chimie Appliqu′ees(LABIOCA) UFR-SVTUniversit′e de Ouagadougou03 BP 7021Ouagadougou 03Burkina Faso Laboratoire de Physiologie Animale(LAPA) UFR-SVTUniversit′e de Ouagadougou09 BP 848Ouagadougou 09Burkina Faso

Objective: To evidence the ability of ethanol fruit extract from Detarium microcarpum(D. microcarpum) to preserve DNA integrity against oxidative genomic ***: Ethanol extract from D. microcarpum fruit pulp was analyzed for its antioxidant capacity using ferric reducing antioxidant power, 2,2-diphenyl-1-picrylhydrazyl,2,20-azinobis-3-ethyl-ethylbenzothiazoline-6-sulphonate, superoxide anion, deoxyribose degradation and lipid peroxidation models. The genoprotective activity was assessed ex vivo by comet assay, on liver cells of NMRI female mice using cyclophosphamide(CP) as genotoxic ***: Ethanol extract from D. microcarpum fruit pulp exhibited interesting antioxidant activity in 2,2-diphenyl-1-picrylhydrazyl, deoxyribose degradation and lipid peroxidation assays. The extract did not present any genotoxic effect but protected DNA against CP-induced damages with a dose-dependent manner. The genoprotective effect observed was related to the antioxidant molecules of the fruit that scavenged the hydroxyl radical(generated by the metabolism of CP) as well as the peroxyl and alkoxyl radicals issued from lipid peroxidation. Other mechanisms such as inactivation of CP metabolism to genotoxic end products, induction of the expression of antioxidant and DNA repair enzymes have been ***: Our results suggest that the wild edible fruit from D. microcarpum could be beneficial on consumer's health by its antioxidant and genoprotective effects, particularly during chemotherapies exhibiting genotoxic effects like CP in cancer treatment.

关键词： Antioxidant activity Comet assay Detarium microcarpum Genoprotection

Potentials of an Eco-Friendly Composite in Hot-Dry Climate

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 Renewable Materials 2018年第1期6卷 47-54页

作者： Fati Zoma David YKToguyeni Ousmane Coulibaly Ivon Hassel Abdoulaye ouedraogo Laboratory of Physics and Chemistry of the Environment University Ouaga 01 Pr Joseph KI-ZERBO03 BP 7021 OuagadougouBurkina Faso Department of Engineering Sciences Division of Applied MechanicsUppsala UniversityBox 534SE-75121 UppsalaSweden Laboratory of Thermal and Renewable Energies University Ouaga 01 Pr Joseph KI-ZERBO03 BP 7021 OuagadougouBurkina Faso

This study aims to show the aptitude of a locally made composite for providing thermal comfort and mechanical resistance in buildings in hot-dry *** thermal characterization reveals that the thermal diffusivity of the studied material is lower than that of commonly used materials such as agglomerated and full cinderblocks and laterite blocks and therefore is a better insulating *** addition,its thermal inertia is the highest compared to commonly used materials of agglomerated and full cinderblocks,laterite blocks and compressed earth blocks,which implies a longer time *** the basis of mechanical resistance,with a compression resistance of 3.61 MPa,the studied material meets the requirement of CRATerre and NBF 02-003(2009)as a material for construction of single-storey ***,this material,containing 1%Hibiscus sabdariffa fibers and compacted by vibration,is a suitable material for the walls of standing buildings and for thermal comfort in hot dry climates.

关键词： Local composite vibration characterization single-storey building envelope thermal comfort

Impact of a community-based intervention on Aedes aegypti and its spatial distribution in Ouagadougou,Burkina Faso

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Infectious Diseases of Poverty 2020年第3期9卷 105-113页

作者： emmanuel Bonnet Florence Fournet Tarik Benmarhnia Samiratou ouedraogo Roch Dabiré Valéry Ridde Résiliences French National Research Institute for Sustainable Development32 Avenue Henri Varagnat93140 BondyFrance Infectious Diseases and Vectors Ecology GeneticsEvolution and Control(MIVEGEC)French National Research Institute for Sustainable Development911 Avenue AgropolisBP 6450134394 Montpellier Cedex 5France University of California San DiegoCAUSA University of Montreal Public Health Research Institute MontrealCanada Institute for Health Science Research Bobo-DioulassoBurkina Faso Population and Development Center(CEPED) French NationalResearch Institute for Sustainable DevelopmentUniversitéParis Sorbonne45rue des Saints Pères75006 ParisFrance

Background:Several studies highlighted the impact of community-based interventions whose purpose was to reduce the vectors’breeding *** strategies are particularly interesting in low-and-middle-income countries which may find it difficult to sustainably assume the cost of insecticide-based *** this case study we determine the spatial distribution of a community-based intervention for dengue vector control using different entomological *** objective was to evaluate locally where the intervention was most effective,using spatial analysis methods that are too often neglected in impact ***:Two neighbourhoods,Tampouy and Juvenat in Ouagadougou,Burkina Faso,were chosen among five after a survey was conducted,as part of an assessment related to the burden of *** part of the communitybased intervention conducted in Tampouy between August and early October 2016,an entomological survey was implemented in two *** first phase consisted of a baseline entomological characterization of potential breeding sites in the neighbourhood of Tampouy as well as in Juvenat,the control *** phase was conducted in October 2015 at the end of the rainy *** mosquito breeding sites were screened in randomly selected houses:206 in Tampouy and 203 in Juvenat.A second phase took place after the intervention,in October *** mosquito breeding sites were investigated in the same yards as during the baseline *** performed several entomological analyses to measure site productivity as well as before and after analysis using multilevel linear *** used Local Indicators of Spatial Association(LISAs)to analyse spatial concentrations of ***:After the intervention,it is noted that LISAs at Tampouy reveal few aggregates of all types and the suppression of those existing before the *** analysis therefore reveals that the intervention made it possible to reduce the number of concentration areas of high

关键词： Vector-borne diseases Spatial analysis Community-based intervention

Maxillary Osteitis in the Yalgado ouedraogo Teaching Hospital: Epidemiological, Clinical and Therapeutic Aspects

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 Stomatology 2018年第4期8卷 101-109页

作者： T. Konsem M. Millogo V. Ili A. Coulibaly R. W. L. ouedraogo L. ouedraogo D. ouedraogo CHU-YO Ouagadougou Burkina Faso CHU-SS Bobo-Dioulasso Burkina Faso

Purpose: Report the epidemiological, clinical and therapeutic aspects of maxillary osteitis. Material and Methods: This was a descriptive, cross-sectional retrospective study carried out in the Department of Stomatology and Maxillofacial Surgery of the Yalgado ouedraogo Teaching Hospital, covering a period of 7 years. Results: We registered 68 cases of maxillary osteitis with an annual hospital frequency of 9.71 cases. The mean age was 27.5 years +/-4.02 with extremes of 4 years and 72 years. Farmers/herders were the most concerned in 67.65% of the cases. Reasons for consultation were dominated by swelling of the cheek in 79.41% of cases. The average time to consultation was 7 months. Tooth decays and dental avulsions were mostly implicated in etiologies in 79.41% of the cases. Treatment provided was medical and surgical. All patients received antibiotic therapy. Surgical treatment involved 51.47% of patients. The evolution was favorable in 89.70% of the patients. Sequelae were found in 58.82% of the patients. Conclusion: Maxillary osteitis is common in our regions. Treatment is medical and surgical. It is marked by many difficulties, especially the delay in consultation.

关键词： Osteitis Maxillary Epidemiology Clinical Therapeutic Ouagadougou

Maxillary Ameloblastoma, Epidemiological Aspects and Treatment at the Yalgado ouedraogo University Hospital (Burkina Faso)

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Stomatology 2018年第5期8卷 149-157页

作者： T. Konsem M. Millogo R. W. L. ouedraogo V. Ili L. ouedraogo A. Coulibaly D. ouedraogo HU-YO Ouagadougou Burkina Faso CHU-SS Bobo-Dioulasso Burkina Faso

Purpose: To report any epidemiological, anatomo-clinical and therapeutic aspects of maxillary ameloblastoma at the Yalgado ouedraogo University Hospital (CHU-YO). Materials and Method: This was a descriptive and retrospective study covering the period ranging from January 1, 2010 to December 31, 2016. All patients received in the stomatology department for maxillary ameloblastoma with histological confirmation were included in the study. Consultation registers were used as the basis for data collection. Results: In our study, 50 cases were reported, i.e. an incidence of 7.14 cases per year. The mean age was 30.16 years with a sex ratio of 0.56. Housewives were the most affected and the average time to consultation was 2.5 years. The site of the tumor was in the majority of cases the mandible 82%, with swelling as the main reason for consultation. X-rays showed a predominance of monogeodic images in 56% of the cases. Conservative surgery was performed in 56% of the cases. Conclusion: Ameloblastoma is common in our area, characterized by delayed consultation. Strengthening of the technical facilities and awareness campaigns for the populations for early consultation are required.

关键词： Ameloblastoma Maxillary Epidemiology Treatment Ouagadougou

HPV/HBV or HPV/HCV Co-Infections in Women Treated for Chronic Hepatitis at Hôpital Saint Camille in Ouagadougou, Burkina Faso

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

American Journal of Molecular Biology 2024年第1期14卷 1-12页

作者： Estelle Ouédraogo Théodora Mahoukèdè Zohoncon Bagora Bayala Prosper Bado Rose P. Clémence Da Rogomenoma Alice ouedraogo Ina Marie Angèle Traoré Punya Akouélé Kuassi-Kpede Samiratou Ouédraogo Essi Etonam Dovo Lassina Traoré Albert Théophane Yonli Florencia Wendkuuni Djigma Olga Mélanie Lompo Jacques Simpore Laboratory of Molecular Biology and Genetics (LABIOGENE) University Joseph KI-ZERBO Ouagadougou Burkina Faso Centre of Biomolecular Research Pietro Annigoni (CERBA) Ouagadougou Burkina Faso Hô spital Saint Camille of Ouagadougou (HOSCO) Ouagadougou Burkina Faso Faculty of Health University Saint Thomas d’Aquin (USTA) Ouagadougou Burkina Faso Ecole Normale Supérieure Koudougou Burkina Faso Chair “Research and Action Against Cancer” Département de Santé Publique Training and Research Unit in Health Sciences University Joseph KI-ZERBO Ouagadougou Burkina Faso Observatoire National de la Santé de la Population Institut National de Santé Publique Ouagadougou Burkina Faso The Department of Epidemiology Biostatistics and Occupational Health School of Population and Global Health Montreal Canada Laboratory of Pathological Anatomy and Cytology University Joseph KI-ZERBO Ouagadougou Burkina Faso

Introduction: Cervical cancer is a public health concern and is mainly caused by Human papillomaviruses (HPV). In many parts of the world, studies are being carried out to understand the different genotypes to better tackle this issue. We conducted a study to determine the prevalence of HPV genotypes in women with chronic hepatitis B or C infection, co-infected or not with HIV, treated at the Hôpital Saint Camille in Ouagadougou (Burkina Faso). Methods: This study was conducted from April to July 2023, including 100 women in gastroenterology at Hôpital Saint Camille. A questionnaire on their socio-demographic and life style was administrated;and endocervical samples were collected using sterile swabs and then sent to Centre of Biomolecular Research Pietro Annigoni (CERBA). HPV molecular detection and genotyping were performed by PCR and hybridization using the HPV Direct Flow Chips kit. Data were analysis using chi square test or Fischer’s exact test with a significance threshold for p Results: The prevalence of HPV infection was 28% (28/100) on the sample of women tested. The most frequent genotypes were HPV 52 (8.33%), followed by HPV 18 and 68 (6.25% each) for high-risk HPVs, and HPV 6, 44/55 and 62/81 (8.33% each) for low-risk HPVs. Conclusion: This study, the first of its kind in Burkina Faso on this group of the population, reveals that the most frequent genotypes found in this study are not included in the vaccine available in Burkina Faso (Gardasil®4).

关键词： Human Papillomavirus Cervical Cancer Hepatitis Human Immunodeficiency Virus Burkina Faso

Vaginal Bleeding in the Nonpregnant Patient Received in Emergency at Yalgado ouedraogo University Hospital of Ouagadougou, Burkina Faso

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Obstetrics and Gynecology 2018年第10期8卷 847-853页

作者： Yobi Alexis Sawadogo Boubakar Toure Issa ouedraogo Sibraogo Kiemtore Dantola Paul Kain Adama Ouattara Hyacinthe Zamane Ali ouedraogo Blandine Thieba Unity of Training and Research in Health Sciences (UFR/SDS) University Ouaga I Professor Joseph KI-ZERBO Ouagadougou Burkina Faso Yalgado ouedraogo Teaching Hospital of Ouagadougou Ouagadougou Burkina Faso Teaching Hospital of Ouahigouya Ouahigouya Burkina Faso

Objective: To describe the epidemiological, clinical and therapeutic aspects of cases of vaginal bleeding in the nonpregnant patient received in emergency at Yalgado ouedraogo University Hospital. Materials and Methods: It was a retrospective and descriptive study that involved the clinical records of 326 patients collected from January 01, 2009 to December 31, 2013. Results: The average age of women was 47 years old with extremes at 12 and 82 years old. Women of childbearing age accounted for 61.6% and postmenopausal women 18.7%. 70.7% of women were pauciparous or nulliparous. Menorrhagia and pelvic pain were the main signs associated. This symptomatology required hospitalization in 85.2% of cases. The main aetiologies were uterine myomas 49.69%, cervical cancer 23% and functional metrorrhagia 11.04%. Progestin was the most used drug in 67.1% of cases. Total abdominal hysterectomy and abdominal myomectomy were the most commonly used surgical methods with 22.3%, 44.4% of cases. Eleven death cases were observed. Conclusion: Gynecological metrorrhagia is more common in women of childbearing age than in menopausal women. The main causes are fibroma, cervical cancer and functional metrorrhagia.

关键词： Metrorrhagia Gynecology Aetiology Treatment Ouagadougou

p-/n-Type modulation of 2D transition metal dichalcogenides for electronic and optoelectronic devices

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano Research 2022年第1期15卷 123-144页

作者： Songyu Li Yang Ma Nabonswende Aida Nadege ouedraogo Famin Liu Congya You Wenjie Deng Yongzhe Zhang School of Physics Beihang UniversityBeijing 100191China Key Laboratory of Advanced Functional Materials Ministry of EducationCollege of Materials Science and EngineeringBeijing University of TechnologyBeijing 100124China

Two-dimensional layered transition metal dichalcogenides(TMDCs)have demonstrated a huge potential in the broad fields of optoelectronic devices,logic electronics,electronic integration,as well as neural *** take full advantage of TMDC characteristics and efficiently design the device structures,one of the most key processes is to control their p-/n-type *** this review,we summarize the p-/n-type modulation of TMDCs based on diverse strategies consisting of intrinsic defect tailoring,substitutional doping,surface charge transfer,chemical intercalation,electrostatic modulation,and dielectric interface *** modulation mechanisms and comparisons of these strategies are analyzed together with a discussion of their corresponding device applications in electronics and ***,challenges and outlooks for p-/n-type modulation of TMDCs are presented to provide references for future studies.

关键词： transition metal dichalcogenides p-/n-type modulation doping method electronic devices optoelectronic devices

Stability Analysis for a Discrete SIR Epidemic Model with Delay and General Nonlinear Incidence Function

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Applied Mathematics 2018年第9期9卷 1039-1054页

作者： Aboudramane Guiro Dramane ouedraogo Harouna ouedraogo Département de Mathématiques UFR des Sciences et Techniques Université Nazi Boni de Bobo-Dioulasso & LAboratoire de Mathématique et d’Informatique (LAMI) Bobo-Dioulasso Burkina Faso

In this paper, we construct a backward difference scheme for a class of SIR epidemic model with general incidence f . The step sizeτ used in our discretization is one. The dynamical properties are investigated (positivity and the boundedness of solution). By constructing the Lyapunov function, the general incidence function f must satisfy certain assumptions, under which, we establish the global stability of endemic equilibrium when R0 >1. The global stability of diseases-free equilibrium is also established when R0 ≤1. In addition we present numerical results of the continuous and discrete model of the different class according to the value of basic reproduction number R0.

关键词： Discrete Model Delay Lyapunov Functional Nonlinear Incidence Backward Difference Scheme Local Stability Global Stability