نتایج جستجو برای: pr3 doped cofe2o4

تعداد نتایج: 49830  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1379

پروتئیناز 3 یک نوتروفیل سرین پروتناز و به عنوان یک اتو آنتی نوتروفیل سیتوپلاسمیک اتوآنتی بادیها که در سرم افراد با بیماری گرانولوماتوز وگنر دیده می شود، می باشد. فرم خالص شده این پروتئیناز جهت مطالعه این بیماران بسیار حائز اهمیت است . در این تحقیق دو نوع pr3 انسانی بصورت نوترکیب تهیه شد. بخشی از pr3cdna که فرم فعال راکد می کند انتخاب و با انجام واکنش نسخه برداری معکوس و واکنش زنجیری پیوسته بر ر...

Journal: :Science 2004
H Zheng J Wang S E Lofland Z Ma L Mohaddes-Ardabili T Zhao L Salamanca-Riba S R Shinde S B Ogale F Bai D Viehland Y Jia D G Schlom M Wuttig A Roytburd R Ramesh

We report on the coupling between ferroelectric and magnetic order parameters in a nanostructured BaTiO3-CoFe2O4 ferroelectromagnet. This facilitates the interconversion of energies stored in electric and magnetic fields and plays an important role in many devices, including transducers, field sensors, etc. Such nanostructures were deposited on single-crystal SrTiO3 (001) substrates by pulsed l...

Journal: :Nanoscale 2015
Henrik L Andersen Mogens Christensen

The evolution of size and size distribution during hydrothermal synthesis of nanocrystalline CoFe2O4 has been studied by in situ synchrotron powder X-ray diffraction (PXRD). Varying synthesis temperature or [OH(-)] concentration in the precursor proves to have no significant effect on the final volume-weighted nanocrystallite sizes (∼12 nm) of CoFe2O4. However, analysis by whole powder pattern ...

Journal: :Journal of leukocyte biology 2001
K Hattar U Sibelius A Bickenbach E Csernok W Seeger F Grimminger

Anti-neutrophil cytoplasmic antibodies (ANCA) targeting proteinase 3 (PR3) possess a high sensitivity and specificity for Wegener's granulomatosis. Due to their capacity of directly activating neutrophils, a pathogenetic role for these autoantibodies has been proposed. We investigated the impact of subthreshold concentrations of monoclonal anti-PR3 antibodies (anti-PR3; 0.1 microg/mL) on neutro...

1999
Véronique Witko-Sarsat Elisabeth M. Cramer Corinne Hieblot Josette Guichard Patrick Nusbaum Sandra Lopez Philippe Lesavre Lise Halbwachs-Mecarelli

Proteinase 3 (PR3), which is also called myeloblastin, the target autoantigen for antineutrophil cytoplasmic antibodies (ANCA) in Wegener’s granulomatosis, is a serine proteinase stored in azurophil granules of human neutrophils. We have previously shown that, in contrast to elastase or myeloperoxidase, PR3 is also expressed at the plasma membrane of a subset of unactivated neutrophils and that...

Journal: :Blood 1999
V Witko-Sarsat E M Cramer C Hieblot J Guichard P Nusbaum S Lopez P Lesavre L Halbwachs-Mecarelli

Proteinase 3 (PR3), which is also called myeloblastin, the target autoantigen for antineutrophil cytoplasmic antibodies (ANCA) in Wegener's granulomatosis, is a serine proteinase stored in azurophil granules of human neutrophils. We have previously shown that, in contrast to elastase or myeloperoxidase, PR3 is also expressed at the plasma membrane of a subset of unactivated neutrophils and that...

Journal: :Annals of the rheumatic diseases 2006
J Voswinkel A Mueller J A Kraemer P Lamprecht K Herlyn K Holl-Ulrich A C Feller S Pitann A Gause W L Gross

BACKGROUND Anti-neutrophil cytoplasmic antibodies (ANCA) directed against proteinase 3 (PR3) are highly specific for Wegener's granulomatosis (WG). Evidence for a pivotal role of PR3-ANCA in the induction of vasculitis has been demonstrated. B cell clusters have been observed within endonasal biopsy specimens. OBJECTIVES To determine whether B cell selection and maturation take place in granu...

2014
Laura M. Stinton Chelsea Bentow Michael Mahler Gary L. Norman Bertus Eksteen Andrew L. Mason Gilaad G. Kaplan Bjorn Lindkvist Gideon M. Hirschfield Piotr Milkiewicz Angela Cheung Harry L. A. Janssen Marvin J. Fritzler

BACKGROUND AND AIMS The only recognized biomarker for primary sclerosing cholangitis (PSC) is atypical anti-neutrophil cytoplasmic antibodies (aANCA), which, in addition to having low sensitivity and specificity, is an indirect immunofluorescence (IIF) test lacking the advantages of high throughput and objectivity. Recent reports have shown that antibodies to proteinase-3 (PR3-ANCA) might add d...

2016
Shitao Xu Yongqing Ma Bingqian Geng Xiao Sun Min Wang

Approximately single-domain-sized 9-, 13-, and 16-nm CoFe2O4 nanoparticles are synthesized using the thermal decomposition of a metal-organic salt. By means of dilution and reduction, the concentration, moment, and anisotropy of nanoparticles are changed and their influence on the magnetic properties is investigated. The relation of M r/M s ∝ 1/lgH dip is observed, where M r/M s is the remanenc...

Journal: :IOP Conference Series: Materials Science and Engineering 2010

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