检索结果-南通市图书馆

Tuberculosis:an experience from Mycobacterium smears and culture analysis

在线全文

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical Medicine 2009年第2期2卷 47-53页

作者： Zeehaida M Siti Asma H Siti Hawa H Zaidah ar norbanee TH department of Medical Microbiology and Parasitology School of Medical SciencesUniversiti Sains MalaysiaKubang KerianKelantanMalaysia

Objective:Simple tests like direct smear of the acid fast bacilli(AFB) and Mycobacterium culture could assist the diagnosis of *** study is aimed at reviewing the outcome of smears,culture results and contamination rate among specimens requested for AFB smear and Mycobacterium ***:Retrospective laboratory data analysis requesting for Mycobacterium culture from January 2005 till december 2006 was done in a tertiary teaching hospital of Universiti Sains Malaysia,Kubang Kerian,Kelantan,***: Four hundred and sixty seven(36.6%) isolates grew from 1 277 *** these isolates,314 (67.2%) grew Mycobacterium tuberculosis,23(4.9%) grew Mycobacterium other than tuberculosis and 38 (8.1%) grew *** the *** cultures,165(52.5%) had growth of more than 100 confluent colonies,whereas 39 cultures(12.4%) had growth of less than 19 *** smear for AFB among smear positive cases showed presence of more than 50 bacilli/line in 231(49.5%) cases and smear negative cases accounted for 63(13.5%).Among smear positive cases,291(94.5%) cultures grew Mycobacterium species and another 17(5.5%) cultures grew *** smear negative cases,32(62.7%) cultures grew Mycobacterium species and 19(37.3%) cultures grew ***:The results from data analysis of the Mycobacterium cultures should be critically utilized in order to review the laboratory performance and to improve its services in the *** of the data is also useful to the administrators of the hospital in terms of estimating the risk of occupational hazard faced by the health care workers.

关键词： Tuberculosis Mycobacterium tuberculosis Culture Acid fast bacilli Smear Contamination

Glutamate reduces experimental intestinal hyperpermeability and facilitates glutamine support of gut integrity

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 2011年第12期17卷 1569-1573页

作者： Mechteld ar Vermeulen Jeffrey de Jong Mathijs J Vaessen Paul AM van Leeuwen Alexander PJ Houdijk department of Surgery VU University Medical Center1007 MB AmsterdamThe Netherlands department of Surgery Gemini Hospital1782 GZ Den HelderThe Netherlands department of Surgery Medical Center Alkmaar1815 JD AlkmaarThe Netherlands

AIM:To assess whether glutamate plays a similar role to glutamine in preserving gut wall ***:The effects of glutamine and glutamate on induced hyperpermeability in intestinal cell lines were *** hyperpermeability was induced in *** and HT-29CL.19A cell lines by adding phorbol-12,13-dibutyrate(PdB) apically,after which the effects of glutamine and glutamate on horseradish peroxidase(HRP) diffusion were *** inhibitor of glutamate transport(L-trans-pyrrolidine-2,4-dicarboxylic acid:trans-PdC) and an irreversible blocker(acivicin) of the extracellular glutamine to glutamate converting enzyme,γ-glutamyltransferase,were ***:Apical to basolateral HRP flux increased significantly compared to controls not exposed to PdB (n=30,Pne application reduced hyperpermeability by 19%and 39%in the respective cell *** application reduced hyperpermeability by 30%and 20%,*** of HT29CL.19A cells with acivicin and subsequent PdB and glutamine addition increased permeability *** of *** cells with trans-PdC followed by PdB and glutamate addition also resulted in high permeability ***:Apical glutamate-similar to glutaminecan decrease induced paracellular *** conversion of glutamine to glutamate and subsequent uptake of glutamate could be a pivotal step in the mechanism underlying the protective effect of glutamine.

关键词： Apical Basolateral Flux Glutamate Glutamine Gut protection Gut wall integrity Intestine Permeability

Structural and optical properties of periodically ordered ZnO nanowires

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(Technological Sciences) 2009年第2期52卷 313-317页

作者： J.B.CUI department of Physics and Astronomy, University of arkansas at Little Rock, Little Rock, ar 72204, USA department of Physics and Astronomy University of Arkansas at Little Rock Little Rock USA

Periodically ordered ZnO nanowire arrays were fabricated by a combination of soft templates created by electron beam lithography and an electrochemical process. Individual ZnO nanowires were precisely placed in desired locations to form two-dimensional periodic structures with specific patterns. Scanning electron microscopy and light diffraction measurements confirmed the long-range ordered structures in the nanowire arrays. Variable temperature photoluminescence revealed both band edge and defect emissions. The obtained photonic structures may have potential applications in optical and optoelectronic devices.

关键词： Zinc oxide nanowires ordered structure optical property

Improving thermal comfort in mosques of hot-humid climates through passive and lowenergy design strategies

在线全文

学校读者我要写书评

暂无评论

Frontiers of architectural Research 2023年第2期12卷 361-385页

作者： nabeeha Amatullah Azmi Azhaili Baharun Müslüm arıcı Siti Halipah Ibrahim Faculty of Engineering Universiti Malaysia Sarawak94300 SarawakMalaysia Faculty of Built Environment Universiti Malaysia Sarawak94300 SarawakMalaysia Engineering Faculty Kocaeli University41001 KocaeliTurkey

Mosques have intermittent operational schedules with short-term occupancy during the five daily *** occupancy level of the daily prayers is a fraction compared to the mandatory Friday prayers with full ***,the same thermal control mechanism is operated within the same large prayer hall to maintain the thermal comfort of the ***,the comfort requirements are often not met due to the short span of operation during prayer ***,mosques have a very high energy usage as the same energyintensive system is operated even during minimal occupancy *** current research aims at using a passive approach towards design to achieve the comfort conditions during the low occupancy daily prayer times without employing mechanical *** simulations are carried out on a validated model of the case study building to investigate the impact of the west-facing Qiblah wall as the congregation stands in proximity to this *** design alternatives are tested in conjunction with ventilation strategies to holistically assess the thermal comfort of the *** show that as much as 4-6℃reduction in indoor wall surface temperature can be achieved with a suitable Qiblah wall design,which reduces the mean radiant temperature of the occupants by 2-4℃.Combined with ventilation strategies,thermal comfort can be significantly improved by at least 40%for the prayers during the hottest times of the day,and as much as 80%for night-time *** suggest that suitable comfort conditions can be achieved without the need for air-conditioning for at least two or three of the five daily prayers.

关键词： Mosque building Thermal comfort Passive design strategy natural ventilation Intermittent occupancy Hot-humid climate

Probiotic bacteria attenuates cisplatin-induced nephrotoxicity through modulation of oxidative stress, inflammation and apoptosis in rats

在线全文

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical Biomedicine 2019年第3期9卷 116-122页

作者： Emin Sengul Sevda Ur?ar Gelen Serkan Y?ld?r?m Fikret ?elebi Ali ??nar department of Physiology Faculty of Veterinary Ataturk University department of Food Hygiene and Technology Faculty of Veterinary Ataturk University department of Pathology Faculty of Veterinary Ataturk University

Objective: To investigate the effects of probiotic bacteria on cisplatin(CP)-induced nephrotoxicity. Methods: In the present study, 50 Sprague-dawley rats were used and randomly divided into five groups including control, CP, probiotic bacteria treatment groups with different doses(0.5 and 1 mL) and only probiotic bacteria group. After CP and probiotic administration on seven days, rats sacrificed under anesthesia on the eighth day. The serum urea, creatinine, and blood urea nitrogen levels were analyzed. In renal tissue, malondialdehyde levels, superoxide dismutase and glutathione activity, interleukin-8, interleukin-1β and tumor necrosis factor-alpha levels were determined and histopathological and immunohistochemical changes were also examined. Results: According to results, urea, creatinine and blood urea nitrogen levels as well as kidney weights increased in CP group. Also, CP induced inflammation, oxidative stress, dnA damage and apoptosis in kidney tissue and caused histopathological changes. Administration of the high dose of probiotic bacteria could prevent these changes and damages. Conclusions: This study reveals that probiotic bacteria has protective effects on CP-induced renal damage in rats.

关键词： Apoptosis Cisplatin nephrotoxicity Probiotic Rat

A combo technology of autotrophic and heterotrophic denitrification processes for groundwater treatment

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Chemical Engineering 2021年第9期34卷 121-127页

作者： Cemile Seyma arzum Yapıcı dilan Toprak Müjgan Yıldız Sinan Uyanık Yakup Karaaslan deniz Uçar Environmental Engineering department Engineering FacultyHarran UniversitySanliurfa 63100Turkey Gap Renewable Energy and Energy Efficiency Center Harran UniversitySanliurfa 63100Turkey General directorate of Water Management Republic of Turkey Ministry of Agriculture and Forestry Bestepe MahallesiYenimahalle 06560Turkey

In this study,a sequential process(heterotrophic up-flow column and completely mixed membrane bioreactors)was proposed combining advantages of the both *** system was operated for 249 days with simulated and real groundwater for nitrate removal at concentrations varying from 25 to 145 mg·L^(-1) nO_(3)^(-)-*** contribution of heterotrophic process to total nitrate removal in the system was controlled by dozing the ethanol considering the nitrate *** this way,sulfur based autotrophic denitrification rate was decreased and the effluent sulfate concentrations were *** alkalinity requirement in the autotrophic process was produced in the heterotrophic reactor,and the system was operated without alkalinity *** the study,the chemical oxygen demand in the heterotrophic reactor effluent was(23.7±22)mg L^(-1) and it was further decreased to(7.5±7.2)mg·L^(-1) in the system effluent,corresponding to a 70%*** the last period of the study,the real groundwater containing 145 mg·L^(-1) nO_(3)^(-)-n was completely *** was operated without chemical washing in the first 114 *** days 115-249 weekly chemical washing was required.

关键词： nitrate removal Bioreactor Bioprocess Anaerobic process Groundwater treatment

A tumor-associated heparan sulfate-related glycosaminoglycan promotes the generation of functional regulatory T cells

在线全文

学校读者我要写书评

暂无评论

Cellular & Molecular Immunology 2023年第12期20卷 1499-1512页

作者： Leticia Martín-Cruz Marcos Viñuela Ioanna Kalograiaki Alba Angelina Paola Oquist-Phillips Irene Real-arévalo Francisco Javier Cañada JoséIgnacio Tudela Luis Moltó Jesús Moreno-Sierra JoséLuis Subiza Oscar Palomares department of Biochemistry and Molecular Biology School of ChemistryComplutense University of MadridMadridSpain Inmunotek Alcaláde HenaresMadridSpain Fundación Investigación Hospital Clínico San Carlos Martin Lagos s/n28040MadridSpain Centro de Investigaciones Biológicas Margarita Salas CSICRamiro de Maetzu 928040MadridSpain CIBER de Enfermedades Respiratorias(CIBERES)Avda Monforte de Lemos3-528029MadridSpain Servicio de Urología Hospital Clínico San CarlosUniversidad Complutense de MadridMartín Lagos s/n28040MadridSpain

Functional Tregs play a key role in tumor development and progression,representing a major barrier to anticancer *** mechanisms by which Tregs are generated in cancer and the influence of the tumor microenvironment on these processes remain incompletely ***,by using nMR,chemoenzymatic structural assays and a plethora of in vitro and in vivo functional analyses,we demonstrate that the tumoral carbohydrate A10(Ca10),a cell-surface carbohydrate derived from Ehrlich’s tumor(ET)cells,is a heparan sulfate-related proteoglycan that enhances glycolysis and promotes the development of tolerogenic features in human ***10-stimulated human dCs generate highly suppressive Tregs by mechanisms partially dependent on metabolic reprogramming,Pd-L1,IL-10,and ***10 also reprograms the differentiation of human monocytes into dCs with tolerogenic *** solid ET-bearing mice,we found positive correlations between Ca10 serum levels,tumor size and splenic Treg *** of isolated Ca10 also increases the proportion of splenic Tregs in tumor-free ***,we provide evidence supporting the presence of a circulating human Ca10 counterpart(Ca10H)and show,for the first time,that serum levels of Ca10H are increased in patients suffering from different cancer types compared to healthy *** note,these levels are higher in prostate cancer patients with bone metastases than in prostate cancer patients without ***,we reveal novel molecular mechanisms by which heparan sulfate-related structures associated with tumor cells promote the generation of functional Tregs in *** discovery of this novel structural-functional relationship may open new avenues of research with important clinical implications in cancer treatment.

关键词： Tumoral carbohydrate A10 Heparan sulfate-related proteoglycan Cancer immunology dendritic cell Regulatory T cell

Liver injury associated with Malva grandifolia

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Hepatobiliary & Pancreatic diseases International 2010年第4期9卷 443-444页

作者： Ekiz F Yüksel  Ba■ar  oban ■ Yüksel O Teber MA department of Gastroenterology diskapi Yildirim Beyazit Educational and Research Hospital department of Radiology Ankara Etlik Ihtisas Educational and Research Hospital

To the Editor: dietary supplements and herbal products are an increasingly common source of drug-induced liver injury. An increasing number of case reports have suggested causative supplement-associated liver toxicity. [1] Malva grandifolia is a plant which is frequently found in flower and vegetable gardens (Fig.). Mallow products are used

关键词： Liver injury associated with Malva grandifolia

Production of chitosan from endolichenic fungi isolated from mangrove environment and its antagonistic activity

在线全文

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical Biomedicine 2012年第2期2卷 140-143页

作者： Logesh ar Thillaimaharani KA Sharmila K Kalaiselvam M Raffi SM Centre of Advanced Study in Marine Biology Faculty of Marine SciencesAnnamalai University

Objective:To screen the chitosan producing ability of endolichenic fungi and its antibacterial ***:Lichen collected from mangroves was screened for endophytes and the chitosan producing ability of endolichenic fungi by submerged fermentation was also *** activity was carried out against different ***:Totally4 different groups of fungi were isolated from the lichen Roccella *** the four genera,Aspergillus niger(***)is potential to produce chitosan(1.3 g/L)on the twelfth day of *** plays an important role in the pnjductivity of chitosan and the yield was maximum at 10%(1.93 g/L).Antibacterial activity revealed that Vibrio cholerae was sensitive to chitosan followed by Escherichia ***:In conclusion,our findings suggest that *** is a potential candidate to produce more chitosan than the other strains and glucose plays an important role in the production of chitosan which proves to have a good antibacterial activity.

关键词： Mangrove lichens Roccella montagnei Endolichenic fungi Chitosan