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- van de Sande-Bruinsma, Nienke, et al.
(author)
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Antimicrobial drug use and resistance in Europe
- 2008
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In: Emerging Infectious Diseases. - : Centers for Disease Control and Prevention (CDC). - 1080-6040 .- 1080-6059. ; 14:11, s. 1722-30
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Journal article (peer-reviewed)abstract
- Our study confronts the use of antimicrobial agents in ambulatory care with the resistance trends of 2 major pathogens, Streptococcus pneumoniae and Escherichia coli, in 21 European countries in 2000-2005 and explores whether the notion that antimicrobial drug use determines resistance can be supported by surveillance data at national aggregation levels. The data obtained from the European Surveillance of Antimicrobial Consumption and the European Antimicrobial Resistance Surveillance System suggest that variation of consumption coincides with the occurrence of resistance at the country level. Linear regression analysis showed that the association between antimicrobial drug use and resistance was specific and robust for 2 of 3 compound pathogen combinations, stable over time, but not sensitive enough to explain all of the observed variations. Ecologic studies based on routine surveillance data indicate a relation between use and resistance and support interventions designed to reduce antimicrobial drug consumption at a national level in Europe.
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- Liu, Kui, et al.
(author)
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Kallikrein genes are associated with lupus and glomerular basement membrane-specific antibody-induced nephritis in mice and humans
- 2009
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In: Journal of Clinical Investigation. - 0021-9738 .- 1558-8238. ; 119:4, s. 911-923
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Journal article (peer-reviewed)abstract
- Immune-mediated nephritis contributes to disease in systemic lupus erythematosus, Goodpasture syndrome (caused by antibodies specific for glomerular basement membrane [anti-GBM antibodies]), and spontaneous lupus nephritis. Inbred mouse strains differ in susceptibility to anti-GBM antibody-induced and spontaneous lupus nephritis. This study sought to clarify the genetic and molecular factors that maybe responsible for enhanced immune-mediated renal disease in these models. When the kidneys of 3 mouse strains sensitive to anti-GBM antibody-induced nephritis were compared with those of 2 control strains using microarray analysis, one-fifth of the underexpressed genes belonged to the kallikrein gene family,which encodes serine esterases. Mouse strains that upregulated renal and urinary kallikreins exhibited less evidence of disease. Antagonizing the kallikrein pathway augmented disease, while agonists dampened the severity of anti-GBM antibody-induced nephritis. In addition, nephritis-sensitive mouse strains had kallikrein haplotypes that were distinct from those of control strains, including several regulatory polymorphisms,some of which were associated with functional consequences. Indeed, increased susceptibility to anti-GBM antibody-induced nephritis and spontaneous lupus nephritis was achieved by breeding mice with a genetic interval harboring the kallikrein genes onto a disease-resistant background. Finally, both human SLE and spontaneous lupus nephritis were found to be associated with kallikrein genes, particularly KLK1 and the KLK3 promoter, when DNA SNPs from independent cohorts of SLE patients and controls were compared. Collectively, these studies suggest that kallikreins are protective disease-associated genes in anti-GBM antibody-induced nephritis and lupus.
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- Saussele, S., et al.
(author)
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Klinische Forschung im „European LeukemiaNet”
- 2006
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In: Deutsche Medizinische Wochenschrift. - : Georg Thieme Verlag KG. - 0012-0472 .- 1439-4413. ; 131:43, s. 2423-2426
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Journal article (peer-reviewed)abstract
- Because of their mortality, morbidity and incidence in all age groups, leukemias represent a challenge and a cost factor for society. In research, they serve as models for a variety of diseases and have a pivotal function in basic research and for patient care. The European LeukemiaNet (ELN) is a EU funded Network of excellence. Its major goal is the construction of an exemplary cooperative leukemia network for the improvement of medical care and of health related research in acute and chronic leukemias. This is achieved by improved mechanisms of cooperation among 78 national leukemia study groups and their 83 interdisciplinary partner groups that deal with the leukemias in research and in patient care in 22 countries. The network integrates about 1000 researchers in 125 participating institutions. In practice, cooperation between clinical and research groups is mediated by various instruments that improve communication, flow of information and interdisciplinary cooperation, and also increase information transfer from top research institutions to clinical translation. The improved cooperation and the accelerated information transfer from the „bench to the bedside” results in a better patient care that ultimately results in improved survival of patients and in superior competitiveness of involved research workers and clinicians. The major goals are: Establishing common information and communication structures, Creation of European networks for each leukemia Establishing European platforms for each inter-disciplinary speciality Performing clinical trials on an European level Establishing European leukemia registries Developing common definitions and standards Developing guidelines and meta-analyses Spread of excellence To reach these goals the network is organized in 17 Workpackages (WPs) each of which is subdivided into several components and deliverables. The WPs represent central services, set up European networks for each major leukemia or related syndrome and interdisciplinary European platforms for diagnostic specialities, and support treatment research, registries, meta-analyses and guidelines. After the second year of networking, the main structures concerning management, communication and information of the ELN have been established and consolidated. Web-based information is available on the central website (www.leukemia-net.org). Communication is accomplished through annual symposia, regular network and WP-meetings (nearly 60 in 2005), website, and the biannual newsletters. A central randomization service and registries are available for distinct leukemia entities, and a prototype of the electronic data capture facility service has been implemented. Several studies were initiated and are ongoing on a European level. Nearly all WPs have prepared or are preparing guidelines or consensus papers, e. g. guidelines on CML therapy, definitions for transplantation associated microangiopathy (TAM), therapy of infections in leukemias, harmonization of molecular monitoring in CML and a consensus on microarray-technology based diagnostics in leukemias. The main goals of the second funding period have been achieved, and thus the ELN is well prepared for further progress in its goals to improve diagnosis and treatment of the leukemias.
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- Noon, A, et al.
(author)
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Comparative lymphatic, ocular, and metabolic phenotypes of Foxc2 haploinsufficient and aP2-FOXC2 transgenic mice.
- 2006
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In: Lymphology. - 0024-7766. ; 39:2, s. 84-94
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Journal article (peer-reviewed)abstract
- FOXC2 mutations cause the lymphatic/ocular disorder Lymphedema-Distichiasis (LD), and Foxc2 haploinsufficient mice mimic this disorder. To determine if FOXC2 overexpression might also cause lymphatic and/or ocular abnormalities, we performed dynamic lymphatic imaging (Evans blue dye), ocular tissue examination, and metabolic profiles in mice: transgenic for FOXC2 with an adipocyte (aP2) promoter (aP2-FOXC2 Tg), heterozygous for targeted disruption of Foxc2 (Foxc2+/-), or compound heterozygous and transgenic (Foxc2+/-, Tg) compared to wild-type controls (WT). Foxc2+/-; aP2-FOXC2 Tg; and Foxc2+/-, Tg, exhibited LD's distinctive hyperplastic lymphatic phenotype characterized by increased number of lymphatic channels and lymph nodes as well as retrograde lymph reflux. Foxc2+/-, and Foxc2+/-, Tg but not aP2-FOXC2 Tg or WT showed an abnormal ocular phenotype. Previously described alterations in brown/ white fat distribution and lean phenotype in aP2-FOXC2 transgenics were confirmed. AP2-FOXC2 Tg immunohistochemistry disclosed aberrant FOXC2 expression in ectopic sites, especially embryonic heart. Lymphatic system links with fat metabolism are discussed.
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