W. Falk

Details der Publikationsliste

Zeitraum

1913 - 2007

Anzahl

47

Co-Autoren

Strange-quark contributions to parity-violating asymmetries in the forward G0 electron-proton scattering experiment (2007)

Armstrong, D.S., Arvieux, J., Asaturyan, R., Averett, T., Bailey, S.L., Batigne, G., ...

We have measured parity-violating asymmetries in elastic electron-proton scattering over the range of momentum transfers 0.12 $\leq$ Q$^2$ \leq$ 1.0 GeV$^2$. These asymmetries, arising from...

Transverse beam spin asymmetries in forward-angle elastic electron-proton scattering (2007)

Armstrong, D.S., Arvieux, J., Asaturyan, R., Averett, T., Bailey, S.L., Batigne, G., ...

We have measured the beam-normal single-spin asymmetry in elastic scattering of transversely-polarized 3 GeV electrons from unpolarized protons at Q^2 values of 0.15 and 0.25 (GeV/c)^2 with results...

Soluble galectin-3 is a strong, colonic epithelial-cell-derived, lamina propria fibroblast-stimulating factor (2007)

Lippert, E., Falk, W., Bataille, F., Kaehne, T., Naumann, M., Goeke, M., ...

BACKGROUND: Colonic lamina propria fibroblasts (CLPFs) play an important role in the pathogenesis of fibrosis and strictures in Crohn's disease. AIM: To identify colonic epithelial cell (CEC)-derived...

Strange-quark contributions to parity-violating asymmetries in the forward g0 electron-proton scattering experiment (2005)

Arvieux, J, Asaturyan, R, Averett, T, Bailey, S L, Batigne, G, ...

We have measured parity-violating asymmetries in elastic electron-proton scattering over the range of momentum transfers 0.12 < or =Q2 < or =1.0 GeV2. These asymmetries, arising from interference of...

Strange-quark contributions to parity-violating asymmetries in the forward G0 electron-proton scattering experiment (2005)

Armstrong, D.S., Arvieux, J., Asaturyan, R., Averett, T., Bailey, S.L., Batigne, G., ...

We have measured parity-violating asymmetries in elastic electron-proton scattering over the range of momentum transfers 0.12 $\leq$ Q$^2$ \leq$ 1.0 GeV$^2$. These asymmetries, arising from...

Strange-quark contributions to parity-violating asymmetries in the forward G0 electron-proton scattering experiment (2005)

Armstrong, D.S., Arvieux, J., Asaturyan, R., Averett, T., Bailey, S.L., Batigne, G., ...

We have measured parity-violating asymmetries in elastic electron-proton scattering over the range of momentum transfers 0.12 $\leq$ Q$^2$ \leq$ 1.0 GeV$^2$. These asymmetries, arising from...

Record load, 150 bales, weight 17 tons 12 cwts 1 qr 15 lbs, T. Baywater, Carrier [picture] / (1913)

Falk, W. (Photographer)

Title from caption.; Condition: Good.; Part of the collection: Photographs of the Australian bush in the area of the Brotherhood of the Good Shepherd, Dubbo, N.S.W.; Plate NL24267--Information on...

Record load, 150 bales, weight 17 tons 12 cwts 1 qr 15 lbs, T. Baywater, Carrier [picture] / (1913)

Falk, W. (Photographer)

Title from caption.; Condition: Good.; Part of the collection: Photographs of the Australian bush in the area of the Brotherhood of the Good Shepherd, Dubbo, N.S.W.; Plate NL24267--Information on...

Endogenous interferon specifically regulates Newcastle disease virus-induced cytokine gene expression in mouse macrophages.

Zawatzky, R, Wurmbaeck, H, Falk, W, Homfeld, A

In macrophages from inbred mice, the magnitude of the interferon (IFN) response to Newcastle disease virus (NDV) infection is under genetic control of the If-1 locus, which carries the allele for...

Optimal induction of tumor necrosis factor production in human monocytes requires complete S-form lipopolysaccharide.

Männel, D N, Falk, W

Optimal activation of human monocytes in vitro for the biosynthesis of tumor necrosis factor was achieved only with complete S-form lipopolysaccharide. Endotoxin preparations with shorter...

Inhibition of nonspecific tumoricidal activity by activated macrophages with antiserum against a soluble cytotoxic factor.

Männel, D N, Falk, W, Meltzer, M S

Mouse peritoneal macrophages activated for tumor cytotoxicity by any of several in vivo or in vitro treatments released a soluble cytotoxin into culture fluids only after exposure to small amounts of...

Only the chemotactic subpopulation of human blood monocytes expresses receptors for the chemotactic peptide N-formylmethionyl-leucyl-phenylalanine.

Falk, W, Harvath, L, Leonard, E J

Human peripheral blood monocytes comprise a subpopulation of 20 to 40% that is capable of responding to chemoattractants and a remaining subpopulation that cannot respond. We were able to obtain...

Chemotaxis of purified human monocytes in vitro: lack of accessory cell requirement.

Falk, W, Leonard, E J

This study was undertaken to determine whether cell cooperation, either among monocytes or between monocytes and lymphocytes, is a prerequisite for monocyte chemotactic responsiveness. We compared...

Specificity and reversibility of chemotactic deactivation of human monocytes.

Falk, W, Leonard, E J

The chemotactic deactivation of human monocytes was studied to provide insight into the mechanism of chemotaxis. Deactivation was dependent on the dose of chemoattractant and time of incubation. A...

Human monocyte chemotaxis: migrating cells are a subpopulation with multiple chemotaxin specificities on each cell.

Falk, W, Leonard, E J

Only 20 to 40% of human blood monocytes were capable of responding to chemotaxins in vitro. This limit is not due to restrictions of the in vitro system, but is due to the existence of a migrating...

Endogenous interferon specifically regulates Newcastle disease virus-induced cytokine gene expression in mouse macrophages.

Zawatzky, R, Wurmbaeck, H, Falk, W, Homfeld, A

In macrophages from inbred mice, the magnitude of the interferon (IFN) response to Newcastle disease virus (NDV) infection is under genetic control of the If-1 locus, which carries the allele for...

Optimal induction of tumor necrosis factor production in human monocytes requires complete S-form lipopolysaccharide.

Männel, D N, Falk, W

Optimal activation of human monocytes in vitro for the biosynthesis of tumor necrosis factor was achieved only with complete S-form lipopolysaccharide. Endotoxin preparations with shorter...

Inhibition of nonspecific tumoricidal activity by activated macrophages with antiserum against a soluble cytotoxic factor.

Männel, D N, Falk, W, Meltzer, M S

Mouse peritoneal macrophages activated for tumor cytotoxicity by any of several in vivo or in vitro treatments released a soluble cytotoxin into culture fluids only after exposure to small amounts of...

Only the chemotactic subpopulation of human blood monocytes expresses receptors for the chemotactic peptide N-formylmethionyl-leucyl-phenylalanine.

Falk, W, Harvath, L, Leonard, E J

Human peripheral blood monocytes comprise a subpopulation of 20 to 40% that is capable of responding to chemoattractants and a remaining subpopulation that cannot respond. We were able to obtain...

Chemotaxis of purified human monocytes in vitro: lack of accessory cell requirement.

Falk, W, Leonard, E J

This study was undertaken to determine whether cell cooperation, either among monocytes or between monocytes and lymphocytes, is a prerequisite for monocyte chemotactic responsiveness. We compared...

Specificity and reversibility of chemotactic deactivation of human monocytes.

Falk, W, Leonard, E J

The chemotactic deactivation of human monocytes was studied to provide insight into the mechanism of chemotaxis. Deactivation was dependent on the dose of chemoattractant and time of incubation. A...

Human monocyte chemotaxis: migrating cells are a subpopulation with multiple chemotaxin specificities on each cell.

Falk, W, Leonard, E J

Only 20 to 40% of human blood monocytes were capable of responding to chemotaxins in vitro. This limit is not due to restrictions of the in vitro system, but is due to the existence of a migrating...

Anti-inflammatory effects of systemic anti-tumour necrosis factor α treatment in human/murine SCID arthritis

Schadlich, H., Ermann, J., Biskop, M., Falk, W., Sperling, F., Jungel, A., ...

OBJECTIVES—To evaluate in vivo the contribution of tumour necrosis factor α (TNFα) to the chimeric transfer model of human rheumatoid arthritis synovial membrane into SCID mice (hu/mu SCID...

Increased interleukin 8 expression in the colon mucosa of patients with inflammatory bowel disease.

Daig, R, Andus, T, Aschenbrenner, E, Falk, W, Schölmerich, J, Gross, V

To test whether there is a difference in the expression of interleukin 8 (IL8) between Crohn's disease and ulcerative colitis and to determine the main site of its synthesis this study analysed IL8...

Strictures in Crohn's disease are characterised by an accumulation of mast cells colocalised with laminin but not with fibronectin or vitronectin

Gelbmann, C, Mestermann, S, Gross, V, Kollinger, M, Scholmerich, J, Falk, W

BACKGROUND/AIMS—Intestinal fibrosis and stricture formation is an unresolved problem in Crohn's disease. The aim of this study was to investigate whether mast cells accumulate in these tissues and...

Human intestinal epithelial cells secrete interleukin-1 receptor antagonist and interleukin-8 but not interleukin-1 or interleukin-6

Daig, R, Rogler, G, Aschenbrenner, E, Vogl, D, Falk, W, Gross, V, ...

BACKGROUND—There is growing evidence that intestinal epithelial cells (IECs) are involved in the mucosal immune system.
AIM—To assess the pattern of cytokines secreted by IECs and lamina...

Inducible CD40 expression mediates NFκB activation and cytokine secretion in human colonic fibroblasts

Gelbmann, C M, Leeb, S N, Vogl, D, Maendel, M, Herfarth, H, Schölmerich, J, ...

Background: CD40 has been shown to be a functional activation antigen on a variety of cell types involved in immune responses. As intestinal fibroblasts and myofibroblasts may play a role during...

Contrasting activity of cytosin–guanosin dinucleotide oligonucleotides in mice with experimental colitis

OBERMEIER, F, DUNGER, N, STRAUCH, U G, GRUNWALD, N, HERFARTH, H, SCHÖLMERICH, J, ...

Intestinal inflammation in inflammatory bowel disease (IBD) and experimental models of colitis is characterized by a dysregulated intestinal immune response with elevated levels of Th1 cytokines. The...

Cathepsin D is up-regulated in inflammatory bowel disease macrophages

HAUSMANN, M, OBERMEIER, F, SCHREITER, K, SPOTTL, T, FALK, W, SCHÖLMERICH, J, ...

Down-regulation of receptors involved in the recognition or transmission of inflammatory signals and a reduced responsiveness support the concept that macrophages are ‘desensitized’ during their...

Blocking lymphotoxin-β receptor activation diminishes inflammation via reduced mucosal addressin cell adhesion molecule-1 (MAdCAM-1) expression and leucocyte margination in chronic DSS-induced colitis

STOPFER, P, OBERMEIER, F, DUNGER, N, FALK, W, FARKAS, S, JANOTTA, M, ...

The lymphotoxin-β receptor (LTβR) pathway is critical for maintenance of organized lymphoid structures and is involved in the development of colitis. To investigate the mechanisms by which LTβR...

Neutralization of tumour necrosis factor (TNF) but not of IL-1 reduces inflammation in chronic dextran sulphate sodium-induced colitis in mice

KOJOUHAROFF, G, HANS, W, OBERMEIER, F, MÄNNEL, D N, ANDUS, T, SCHÖLMERICH, J, ...

The cytokines TNF and IL-1 have been implicated as mediators of the inflammatory processes in patients with inflammatory bowel disease (IBD). To investigate the role of these cytokines in mucosal...

Isolation and phenotypic characterization of colonic macrophages

Rogler, G, Hausmann, M, Vogl, D, Aschenbrenner, E, Andus, T, Falk, W, ...

Macrophages play an important role in the intestinal mucosal immune system. However, they are a poorly defined cell population. We therefore determined their phenotype in normal colonic mucosa....

Interferon-gamma (IFN-γ)- and tumour necrosis factor (TNF)-induced nitric oxide as toxic effector molecule in chronic dextran sulphate sodium (DSS)-induced colitis in mice

Obermeier, F, Kojouharoff, G, Hans, W, Schölmerich, J, Gross, V, Falk, W

Excess nitric oxide formation caused by the activity of the inducible nitric oxide synthase has been implicated as a toxic effector molecule in the pathogenesis of experimental colitis and...

Nuclear factor-κ B activity and intestinal inflammation in dextran sulphate sodium (DSS)-induced colitis in mice is suppressed by gliotoxin

Herfarth, H, Brand, K, Rath, H C, Rogler, G, Schölmerich, J, Falk, W

In acute DSS-induced colitis nuclear factor (NF)-κ B-dependent inflammatory cytokines including IL-1 and tumour necrosis factor-alpha (TNF-α) are up-regulated. Here we examined the effects of...

Subtractive screening reveals up-regulation of NADPH oxidase expression in Crohn's disease intestinal macrophages

Hausmann, M, Spöttl, T, Andus, T, Rothe, G, Falk, W, Schölmerich, J, ...

Macrophages play a central role during the pathogenesis of inflammation. In normal intestinal mucosa surface expression of typical macrophage markers such as CD14, CD16, CD11b or T-cell...

A study of waiting time in an emergency department

Allen, A. B., Barnard, B. G., Falk, W., Higgs, E. R., McCracken, J. G.

A study was undertaken to determine the time spent by 3459 patients in the Emergency Department of the hospital and also to assess whether full-time physician supervision of interns appreciably...

Monocyte chemoattractant protein-1 (MCP-1) inhibits the intestinal-like differentiation of monocytes

Spoettl, T, Hausmann, M, Herlyn, M, Gunckel, M, Dirmeier, A, Falk, W, ...

Monocytes (MO) migrating into normal, non-inflamed intestinal mucosa undergo a specific differentiation resulting in a non-reactive, tolerogenic intestinal macrophage (IMAC). Recently we demonstrated...

Cathepsins B, L and D in inflammatory bowel disease macrophages and potential therapeutic effects of cathepsin inhibition in vivo

Menzel, K, Hausmann, M, Obermeier, F, Schreiter, K, Dunger, N, Bataille, F, ...

The cathepsins D (CTSD), B (CTSB) and L (CTSL) are important for the intracellular degradation of proteins. Increased cathepsin expression is associated with inflammatory diseases. We have shown...

Interferon γ and lymphotoxin or tumor necrosis factor act synergistically to induce macrophage killing of tumor cells and schistosomula of schistosoma mansoni

Esparza, I, Mannel, D, Ruppel, A, Falk, W, Krammer, PH

Macrophages play a crucial role in the defense against tumors and parasites. Activation of tumoricidal and microbicidal effector mechanisms requires stimulation of macrophages with...

In vivo treatment with the herbal phenylethanoid acteoside ameliorates intestinal inflammation in dextran sulphate sodium-induced colitis

Hausmann, M, Obermeier, F, Paper, D H, Balan, K, Dunger, N, Menzel, K, ...

Recently we demonstrated that in inflammatory bowel disease (IBD) macrophage-oxidative burst activity is increased and NADPH oxidase mRNA is induced. The herbal phenylethanoid acteoside isolated from...

Glycoprotein (gp) 96 expression: induced during differentiation of intestinal macrophages but impaired in Crohn’s disease

Schreiter, K, Hausmann, M, Spoettl, T, Strauch, U G, Bataille, F, Schoelmerich, J, ...

Background: The glycoprotein (gp) 96 links the adaptive with the innate immune system. It is a chaperone with a binding domain for peptides generated by proteasomal degradation. During cellular...

Key role of the sympathetic microenvironment for the interplay of tumour necrosis factor and interleukin 6 in normal but not in inflamed mouse colon mucosa

Straub, R H, Stebner, K, Härle, P, Kees, F, Falk, W, Schölmerich, J

Background: In the intestinal tract, the role of sympathetic neurotransmitters has been largely ignored in mucosal neuroimmunology.

In vivo CpG DNA/toll-like receptor 9 interaction induces regulatory properties in CD4+CD62L+ T cells which prevent intestinal inflammation in the SCID transfer model of colitis

Obermeier, F, Strauch, U G, Dunger, N, Grunwald, N, Rath, H C, Herfarth, H, ...

Background and methods: Cytosin-guanosin dinucleotide (CpG) motifs of bacterial DNA are known to be potent activators of innate immunity. We have shown previously that administration of CpG...

Regulation of galectin-3 function in mucosal fibroblasts: potential role in mucosal inflammation

Lippert, E, Gunckel, M, Brenmoehl, J, Bataille, F, Falk, W, Scholmerich, J, ...

Recently we identified galectin-3 (gal-3), which is secreted by colonic epithelial cells (CEC), to be a strong activator of colonic lamina propria fibroblasts (CLPF). Modulation of CLPF function may...

A ticket to the gut for thymic T cells

Falk, W

The intestinal epithelium is colonised by, among other cells, normal T helper and cytotoxic T cells which obtain their antigen experience in the gut associated lymphatics after migration from the...

(GT)n Dinucleotide repeat polymorphism of haem oxygenase-1 promotor region is not associated with inflammatory bowel disease risk or disease course

Hausmann, M, Paul, G, Kellermeier, S, Frey, I, Schölmerich, J, Falk, W, ...

Haem oxygenase-1 (HO-1) up-regulation was suggested to reduce mucosal tissue damage in inflammatory bowel disease (IBD) and an up-regulation of HO-1 expression in patients with Crohn's disease (CD)...