Leif P. Andersen

Comparative chemical and biological characterization of the lipopolysaccharides of gastric and enterohepatic helicobacters (2004)

Hynes, Sean O., Ferris, John A., Szponar, Bogumila, Wadström, Torkel, Fox, James G., O'Rourke, Jani, ...

Background. The lipopolysaccharide of Helicobacter pylori plays an important role in colonization and pathogenicity. The present study sought to compare structural and biological features of...

Effect of Cold Starvation, Acid Stress, and Nutrients on Metabolic Activity of Helicobacter pylori. (2002)

Nilsson, Hans-Olof, Blom, Jens, Al-Soud, Waleed Abu, Ljungh A, Asa, Andersen, Leif P, Wadström, Torkel

Helicobacter pylori can transform, in vivo as well as in vitro, from dividing spiral-shaped forms into nonculturable coccoids, with intermediate forms called U forms. The importance of nonculturable...

Lectin Typing of Campylobacter concisus (2002)

Aabenhus, Rune, Hynes, Sean O, Permin, Henrik, Moran, Anthony P., Andersen, Leif P.

A total of 44 clinical isolates and the type strain of the putative pathogen Campylobacter concisus were grouped based on their reactions with plant lectins. The optimized lectin typing system used...

Proinflammatory Activation of Neutrophils and Monocytes by Helicobacter pylori in Patients with Different Clinical Presentations

Hansen, Per Syrak, Go, Mae F., Varming, Kim, Andersen, Leif P., Genta, Robert M., Graham, David Y., ...

Chronic Helicobacter pylori infection is associated with mucosal inflammation. The aim of the present study was to assess human neutrophil and monocyte activation by H. pylori strains obtained from...

Effect of Cold Starvation, Acid Stress, and Nutrients on Metabolic Activity of Helicobacter pylori

Nilsson, Hans-Olof, Blom, Jens, Al-Soud, Waleed Abu, Ljungh, Åsa, Andersen, Leif P., Wadström, Torkel

Helicobacter pylori can transform, in vivo as well as in vitro, from dividing spiral-shaped forms into nonculturable coccoids, with intermediate forms called U forms. The importance of nonculturable...

Lectin Typing of Campylobacter concisus

Aabenhus, Rune, Hynes, Sean O., Permin, Henrik, Moran, Anthony P., Andersen, Leif P.

A total of 44 clinical isolates and the type strain of the putative pathogen Campylobacter concisus were grouped based on their reactions with plant lectins. The optimized lectin typing system used...

Delineation of Campylobacter concisus Genomospecies by Amplified Fragment Length Polymorphism Analysis and Correlation of Results with Clinical Data

Aabenhus, Rune, On, Stephen L. W., Siemer, Berit L., Permin, Henrik, Andersen, Leif P.

Campylobacter concisus has been as frequently isolated from human diarrhea as the important enteropathogen Campylobacter jejuni, but it also occurs in the feces of healthy individuals. The role of C....

Proinflammatory Activation of Neutrophils and Monocytes by Helicobacter pylori in Patients with Different Clinical Presentations

Hansen, Per Syrak, Go, Mae F., Varming, Kim, Andersen, Leif P., Genta, Robert M., Graham, David Y., ...

Chronic Helicobacter pylori infection is associated with mucosal inflammation. The aim of the present study was to assess human neutrophil and monocyte activation by H. pylori strains obtained from...

Effect of Cold Starvation, Acid Stress, and Nutrients on Metabolic Activity of Helicobacter pylori

Nilsson, Hans-Olof, Blom, Jens, Al-Soud, Waleed Abu, Ljungh, Åsa, Andersen, Leif P., Wadström, Torkel

Helicobacter pylori can transform, in vivo as well as in vitro, from dividing spiral-shaped forms into nonculturable coccoids, with intermediate forms called U forms. The importance of nonculturable...

Lectin Typing of Campylobacter concisus

Aabenhus, Rune, Hynes, Sean O., Permin, Henrik, Moran, Anthony P., Andersen, Leif P.

A total of 44 clinical isolates and the type strain of the putative pathogen Campylobacter concisus were grouped based on their reactions with plant lectins. The optimized lectin typing system used...

Delineation of Campylobacter concisus Genomospecies by Amplified Fragment Length Polymorphism Analysis and Correlation of Results with Clinical Data

Aabenhus, Rune, On, Stephen L. W., Siemer, Berit L., Permin, Henrik, Andersen, Leif P.

Campylobacter concisus has been as frequently isolated from human diarrhea as the important enteropathogen Campylobacter jejuni, but it also occurs in the feces of healthy individuals. The role of C....