oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 19 )

2018 ( 232 )

2017 ( 223 )

2016 ( 199 )

Custom range...

Search Results: 1 - 10 of 12399 matches for " Xia ZY "
All listed articles are free for downloading (OA Articles)
Page 1 /12399
Display every page Item
Changes in urinary nanocrystallites in calcium oxalate stone formers before and after potassium citrate intake
Duan CY,Xia ZY,Zhang GN,Gui BS
International Journal of Nanomedicine , 2013,
Abstract: Chao-Yang Duan,1 Zhi-Yue Xia,2 Guang-Na Zhang,2 Bao-Song Gui,1 Jun-Fa Xue,2 Jian-Ming Ouyang21Department of Nephrology, the Second Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China; 2Institute of Biomineralization and Lithiasis Research, Jinan University, Guangzhou, People's Republic of ChinaAbstract: The property changes of urinary nanocrystallites in 13 patients with calcium oxalate (CaOx) stones were studied before and after ingestion of potassium citrate (K3cit), a therapeutic drug for stones. The analytical techniques included nanoparticle size analysis, transmission electron microscopy, X-ray diffraction, and Fourier-transform infrared spectroscopy. The studied properties included the components, morphologies, zeta potentials, particle size distributions, light intensity autocorrelation curves, and polydispersity indices (PDIs) of the nanocrystallites. The main components of the urinary nanocrystallites before K3cit intake included uric acid, β-calcium phosphate, and calcium oxalate monohydrate. After K3cit intake, the quantities, species, and percentages of aggregated crystals decreased, whereas the percentages of monosodium urate and calcium oxalate dehydrate increased, and some crystallites became blunt. Moreover, the urinary pH increased from 5.96 ± 0.43 to 6.46 ± 0.50, the crystallite size decreased from 524 ± 320 nm to 354 ± 173 nm, and the zeta potential decreased from 4.85 ± 2.87 mV to 8.77 ± 3.03 mV. The autocorrelation curves became smooth, the decay time decreased from 11.4 ± 3.2 ms to 4.3 ± 1.7 ms, and the PDI decreased from 0.67 ± 0.14 to 0.53 ± 0.19. These changes helped inhibit CaOx calculus formation.Keywords: nanotechnology, zeta potential, aggregation
Changes in urinary nanocrystallites in calcium oxalate stone formers before and after potassium citrate intake
Duan CY, Xia ZY, Zhang GN, Gui BS, Xue JF, Ouyang JM
International Journal of Nanomedicine , 2013, DOI: http://dx.doi.org/10.2147/IJN.S39642
Abstract: nges in urinary nanocrystallites in calcium oxalate stone formers before and after potassium citrate intake Original Research (469) Total Article Views Authors: Duan CY, Xia ZY, Zhang GN, Gui BS, Xue JF, Ouyang JM Published Date March 2013 Volume 2013:8 Pages 909 - 918 DOI: http://dx.doi.org/10.2147/IJN.S39642 Received: 28 October 2012 Accepted: 01 January 2013 Published: 01 March 2013 Chao-Yang Duan,1 Zhi-Yue Xia,2 Guang-Na Zhang,2 Bao-Song Gui,1 Jun-Fa Xue,2 Jian-Ming Ouyang2 1Department of Nephrology, the Second Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China; 2Institute of Biomineralization and Lithiasis Research, Jinan University, Guangzhou, People's Republic of China Abstract: The property changes of urinary nanocrystallites in 13 patients with calcium oxalate (CaOx) stones were studied before and after ingestion of potassium citrate (K3cit), a therapeutic drug for stones. The analytical techniques included nanoparticle size analysis, transmission electron microscopy, X-ray diffraction, and Fourier-transform infrared spectroscopy. The studied properties included the components, morphologies, zeta potentials, particle size distributions, light intensity autocorrelation curves, and polydispersity indices (PDIs) of the nanocrystallites. The main components of the urinary nanocrystallites before K3cit intake included uric acid, β-calcium phosphate, and calcium oxalate monohydrate. After K3cit intake, the quantities, species, and percentages of aggregated crystals decreased, whereas the percentages of monosodium urate and calcium oxalate dehydrate increased, and some crystallites became blunt. Moreover, the urinary pH increased from 5.96 ± 0.43 to 6.46 ± 0.50, the crystallite size decreased from 524 ± 320 nm to 354 ± 173 nm, and the zeta potential decreased from 4.85 ± 2.87 mV to 8.77 ± 3.03 mV. The autocorrelation curves became smooth, the decay time decreased from 11.4 ± 3.2 ms to 4.3 ± 1.7 ms, and the PDI decreased from 0.67 ± 0.14 to 0.53 ± 0.19. These changes helped inhibit CaOx calculus formation.
In vitro and in vivo studies of surface-structured implants for bone formation
Xia L, Feng B, Wang PZ, Ding SY, Liu ZY, Zhou J, Yu R
International Journal of Nanomedicine , 2012, DOI: http://dx.doi.org/10.2147/IJN.S29496
Abstract: vitro and in vivo studies of surface-structured implants for bone formation Original Research (2244) Total Article Views Authors: Xia L, Feng B, Wang PZ, Ding SY, Liu ZY, Zhou J, Yu R Published Date September 2012 Volume 2012:7 Pages 4873 - 4881 DOI: http://dx.doi.org/10.2147/IJN.S29496 Received: 25 December 2011 Accepted: 15 February 2012 Published: 11 September 2012 Lu Xia,1,2 Bo Feng,1 Peizhi Wang,2 Siyang Ding,2 Zhiyuan Liu,1 Jie Zhou,1 Rong Yu1 1Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan; 2Research Institute of Stomatology, Nanjing Medical University, Nanjing, Jiangsu, China Background and methods: Micronanoscale topologies play an important role in implant osteointegration and determine the success of an implant. We investigated the effect of three different implant surface topologies on osteoblast response and bone regeneration. In this study, implants with nanotubes and micropores were used, and implants with flat surfaces were used as the control group. Results: Our in vitro studies showed that the nanostructured topologies improved the proliferation, differentiation, and development of the osteoblastic phenotype. Histological analysis further revealed that the nanotopology increased cell aggregation at the implant-tissue interfaces and enhanced bone-forming ability. Pushout testing indicated that the nanostructured topology greatly increased the bone-implant interfacial strength within 4 weeks of implantation. Conclusion: Nanotopography may improve regeneration of bone tissue and shows promise for dental implant applications.
In vivo migration of dendritic cells labeled with synthetic superparamagnetic iron oxide
Mou YB, Hou YY, Chen BA, Hua ZC, Zhang Y, Xie H, Xia GH, Wang ZY, Huang XF, Han W, Ni YH, Hu QG
International Journal of Nanomedicine , 2011, DOI: http://dx.doi.org/10.2147/IJN.S24307
Abstract: vivo migration of dendritic cells labeled with synthetic superparamagnetic iron oxide Original Research (4732) Total Article Views Authors: Mou YB, Hou YY, Chen BA, Hua ZC, Zhang Y, Xie H, Xia GH, Wang ZY, Huang XF, Han W, Ni YH, Hu QG Published Date October 2011 Volume 2011:6 Pages 2633 - 2640 DOI: http://dx.doi.org/10.2147/IJN.S24307 Yongbin Mou1, Yayi Hou2, Baoan Chen3, Zichun Hua4, Yu Zhang5, Hao Xie2, Guohua Xia3, Zhiyong Wang1, Xiaofeng Huang1, Wei Han1, Yanhong Ni1, Qingang Hu1,6 1Central Laboratory of Stomatology, Stomatological Hospital Affiliated Medical School, Nanjing University, Nanjing, People's Republic of China; 2Immunology and Reproductive Biology Laboratory, Medical School, Nanjing University, Nanjing, People's Republic of China; 3Department of Hematology, Zhongda Hospital, Medical School, Southeast University, Nanjing, People's Republic of China; 4Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, People's Republic of China; 5State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing, People's Republic of China; 6Leeds Dental Institute, Faculty of Medicine and Health, University of Leeds, Leeds, UK Background: Successful treatment of cancer with dendritic cell tumor vaccine is highly dependent on how effectively the vaccine migrates into lymph nodes and activates T cells. In this study, a simple method was developed to trace migration of dendritic cells to lymph nodes. Methods: Superparamagnetic iron oxide (SPIO) of γ-Fe2O3 nanoparticles were prepared to label dendritic cells generated from bone marrow of enhanced green fluorescent protein (EGFP) transgenic mice, to explore the fluorescence intensity of EGFP influenced by the SPIO, and to make images of labeled dendritic cells with the help of magnetic resonance imaging in vitro. The SPIO-EGFP-labeled dendritic cells were injected into the footpads of five mice. After 48 hours, magnetic resonance imaging, optical imaging, confocal imaging, and Prussian blue staining were used to confirm migration of the SPIO-EGFP-labeled dendritic cells into draining lymph nodes. Results: The synthetic SPIO nanoparticles had a spherical shape and desirable superparamagnetism, and confocal imaging and Prussian blue staining showed perfect labeling efficiency as well. Furthermore, the dendritic cells dual-labeled by SPIO and EGFP could migrate into lymph nodes after footpad injection, and could be detected by both magnetic resonance imaging and optical imaging simultaneously, which was further confirmed by immunohistochemistry and Prussian blue staining. The percentage of dendritic cells migrated to the draining lymph nodes was about 4%. Conclusion: Synthetic SPIO nanoparticles are strong contrast agents with good biocompatibility, and EGFP transgenic dendritic cells can be labeled efficiently by SPIO, which are suitable for further study of the migratory behavior and biodistribution of dendritic cells in vivo
FLEETING MONOPARESIS AND AORTIC ARCH ATHEROMA
ZY Aliyu, T Poon
Annals of African Medicine , 2002,
Abstract: A 72-year-old female with a history of hypertension and hyperlipidemia presented with alternating numbness, tingling sensations and weakness of both upper extremities with left shoulder pain. Each episode of these symptoms lasted about thirty minutes and reoccurred three times on either side of her upper limbs at about 2 hourly intervals. She had no associated headache, blurry vision, slurred speech or diplopia. Six years prior to presentation, she underwent a successful repair of an unruptured abdominal aortic aneurysm. Significant findings include; blood pressure of 177/74-mm Hg and a radial pulse rate of 78 beats per minute, blood urea nitrogen (BUN) of 21, creatinine, and abnormal lipid profile. Head CT was negative. Chest x-ray showed calcification and tortuosity of the thoracic aorta. A trans-thoracic echo was negative for vegetation while trans-esophageal echocardiogram (TEE) showed a tortuous thoracic aorta and an ulcerative plaque with an overlying four-cm irregular mobile thrombus in the aortic arch and several small mobile clots. The patient treated with aspirin, heparin and placed on warfarin for one year at target I.N.R of 2.0-3.0. She was symptom free at one-year follow-up.
THE PARTICULARITIES OF THE DISTRIBUTION OF LAND REGISTER OFFICES IN HUNGARY
BUDAHáZY GY?RGY
Lucr?ri ?tiin?ifice : Management Agricol , 2009,
Abstract: The aim of this paper is to investigate the spatial distribution and accessibility of Land Register Offices in Hungary. The spatial distribution of Land Register Offices, according to route distances, has an uneven characteristic. One reason for this fact is the different settlement structure of the various counties, the second reason is the uneven road system in Hungary. The accessibility of Land Register Offices is significantly different in various counties. Since the services of the Land Register Offices belong to the public services, it would be a real and justifiable claim to moderate this huge spatial difference.
Jules Crevaux, l’explorateur aux pieds nus . Un mythe géographique amazonien
Emmanuel Lézy
EchoGéo , 2008,
Abstract: Le rejet par Claude Lévi Strauss du personnage de l’explorateur organise son exploration de l’Amazonie autant que sa quête de l’Indien. Le scientifique, entre les deux, est situé dans une position équidistante entre la clairvoyance et l’aveuglement. Le voyage frappé de la même opprobre est présenté, de fa on similaire comme un travestissement du nomadisme indigène. L’exploration des régions du totémisme ou de l’animisme est décrite comme une activité cérébrale, intellectuelle, passant par l’identification des structures fondamentales de mythes chargés d’organiser la connaissance du monde et ne devant pas grand chose au nécessaire mouvement des pieds. Pourtant, en observant attentivement la polarité doublement négative des pieds d’un explorateur de l’Amazonie, Jules Crevaux, on découvre des structures communes au territoire parcouru et au mythe moderne qui confirment de fa on paradoxale la pertinence des analyses de l’anthropologue. The rejection by Lévi Strauss of the explorer organise his own exploration of Amazonia as much as his quest for the Indian. The scientist, between those two characters, holds a medium position between blindness and foresight. The voyage , stuck by the same despise, is presented as a caricature of indigenous nomadism. The exploration of the countries of totemism and animism is described as a mental, intelectual activity based on the identification of the fundamental structures of the myths organising the knowledge of the world which has nothing to do with the necessary movement of the feet. Nevertheless, the carefull observation of the feet of an amazonian explorer, Jules Crevaux (1847-1882), reveals structures which are common to the covered territory and to a modern mythology. This structures give an unexpected confirmation of the efficiency of the anthropologist’s analyses.
Crainte et dépendance : le pouvoir sur les corps en Toulousain au xiiie siècle
Céline Cheirézy
Atelier du Centre de Recherches Historiques , 2009, DOI: 10.4000/acrh.1537
Abstract: Au-delà du catharisme, les dépositions contenues dans les registres inquisitoriaux du xiiie siècle recèlent d'infimes détails qui apportent une dimension corporelle et sensorielle : à travers les comportements décrits, on touche aux émotions, aux sensibilités, aux gestes qui traduisent une sorte d'obéissance voire de renoncement des corps au service du seigneur. En s'appuyant sur la peur que les hommes disent manifester à l'égard de leur seigneur et qui les aurait conduits à mentir aux inquisiteurs, et sur les manifestations de crainte à l'égard du pouvoir judiciaire de l'Inquisition, il s'agit de comprendre l'origine d'un tel pouvoir qui conduit à l'obéissance et imprime sur les corps des marqueurs de dépendance. Le recours à d'autres sources, administratives et littéraires permet d'aller au-delà du catharisme et de la pression inquisitoriale, pour mieux comprendre à quel point tous les corps sont alors en dépendance, soumis à un fort pouvoir de contrainte. Beyond catharism, the confessions in the inquisitorial registers of the thirteenth century contain minute details who give information about the body and the emotions: thanks to the described behaviours, we can observe sensitivities, gestures expressing for instance obedience or self-denial of bodies in lord's service. This essay is based on the fright that deponents confess they feel regarding their lord and who could have them lie when facing inquisitors. Basing also this research on the manifestations of fear with regard to the judicial power of the Inquisition, we have to bring to the fore the origin of such a power which induces obedience and puts a mark of dependence on bodies. The resort to other documents, administrative and literary, allows to put catharism and inquisitorial influence aside, and to understand how much bodies are dependent, subjects to an important power of coercion.
Obituary for Prof. Helena Ra ková, MD., DSc., Dr.h.c. *2 January, 1913 13 April, 2010
Jana Navarová, , Eduard Ujházy
Interdisciplinary Toxicology , 2010, DOI: 10.2478/v10102-010-0008-0
Abstract: Professor Ra ková had been a member, and after her retirement, an honorary member of a number of scientific societies and editorial boards in Slovakia as well as abroad. To provide a list of all decorations and honours given to Professor Ra ková would take a lot of space. Of them, let us mention only that she had been decorated with the Finnish Sibelius Medal, the French medal of the of Académie de Lutec, the Gold Medal of European Pharmacological Societies for her contributions to the development of world pharmacology, as well as all the decorations obtained from the Slovak Academy of Sciences: Gold Medal of the Slovak Academy of Sciences, Honourable Gold Medal of the Slovak Academy of Sciences for her contributions to biological sciences, and the Memorable Medal of the Slovak Academy of Sciences. Professor Ra ková was an honorary member of the Learned Society of the Slovak Academy of Sciences
Une recherche appliquée à l'aménagement du territoire: le SIGde l'état de Veracruz (Mexique)
Luc CAMBRéZY,Marc SOURIS
Mappemonde , 1993,
Abstract: De l’analyse spatiale au développement régional, bref aper u d’un Système d’Information Géographique permettant aux chercheurs et aux aménageurs de rapprocher leurs méthodes de travail.
Page 1 /12399
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.