Results 11 to 20 of about 19,248 (182)
Phagocytosis of Legionella pneumophila [PDF]
In this review we consider both phagocytosis of Legionella by phagocytes of the animal defence system and their ingestion by actively feeding ...
M A, Halablab, L, Richards, M J, Bazin
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A plasmid in Legionella pneumophila [PDF]
Sixteen strains from the six serogroups of Legionella pneumophila were examined for the presence of extrachromosomal genetic elements by a modified cleared lysate procedure, dye-buoyant centrifugation, and agarose gel electrophoresis. Two strains, Atlanta-1 and Atlanta-2 from serogroup II, each contained a plasmid of cryptic function with a molecular ...
G B, Knudson, P, Mikesell
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Innate Immunity to Legionella Pneumophila [PDF]
Innate immune cells, such as macrophages, are highly adapted to rapidly recognize infections by distinct pathogens, including viruses, bacteria, fungi, and protozoa. This recognition is mediated by pattern recognition receptors (PRRs), which are found in host cell surface membranes and the host cell cytoplasm.
Massis, Liliana M., Zamboni, Dario S.
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Caspase Exploitation by Legionella pneumophila [PDF]
Legionella pneumophila remains a major health concern, especially for hospitalized patients. L. pneumophila in the environment can survive extracellular or as protozoan parasite within amoeba. After human infection it efficiently replicates in alveolar macrophages without activating inflammasome assembly and cleavage of caspase-1.
Krause, Kathrin, Amer, Amal O.
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The contamination of hospital water supply systems by Legionella pneumophila
The risk of severe infectious complications associated with provision of medical care continues to be a pressing issue in modern surgery. Legionella pneumophila, characterized by its wide distribution in water supply systems and is highly active in film ...
I. S. Tartakovsky +3 more
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Influence of Metal Concentration and Plumbing Materials on Legionella Contamination
Legionella colonization of water supply pipes is a significant public health problem. The objective of this work was to evaluate Legionella colonization in hotel hot water systems and to investigate the relationship between metal concentrations, piping ...
Anita Rakić +2 more
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Necrotrophic Growth of Legionella pneumophila [PDF]
ABSTRACT This study examined whether Legionella pneumophila is able to thrive on heat-killed microbial cells (necrotrophy) present in biofilms or heat-treated water systems. Quantification by means of plate counting, real-time PCR, and flow cytometry demonstrated necrotrophic growth of L ...
Verstraete, W. +4 more
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To persist in microbial communities, the bacterial pathogen Legionella pneumophila must withstand competition from neighboring bacteria. Here, we find that L.
Tera C Levin +2 more
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The intracellular pathogen Legionella pneumophila, as well as other Legionella species, utilize the Icm/Dot type-IV secretion system to translocate an exceptionally large and diverse repertoire of effectors into their host cells.
Michael Wexler +4 more
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Extracellular enzymes of Legionella pneumophila [PDF]
All strains of Legionella pneumophila tested produced detectable levels of extracellular protease, phosphatase, lipase, deoxyribonuclease, ribonuclease, and beta-lactamase activity. Weak starch hydrolysis was also demonstrated for all strains. Elastase, collagenase, phospholipase C, hyaluronidase, chondroitinase, neuraminidase, or coagulase were not ...
T C, Thorpe, R D, Miller
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