Solutions of the bodies of pneumococci, obtained by dissolving them in dilute solutions of sodium cholate, by permitting them to undergo autolysis, or by first freezing, drying, and then grinding in salt solution, are actively hemolytic for rabbit, sheep, guinea pig, and human red blood corpuscles. The substance on which this hemolytic property depends
openaire +2 more sources
The interrelationship between phagocytosis, autophagy and formation of neutrophil extracellular traps following infection of human neutrophils by Streptococcus pneumoniae [PDF]
Neutrophils play an important role in the innate immune response to infection with Streptococcus pneumoniae, the pneumococcus. Pneumococci are phagocytosed by neutrophils and undergo killing after ingestion.
Evans, Tom J. +2 more
core +1 more source
Unraveling the seasonal epidemiology of pneumococcus
Significance The pneumococcus, a bacterium frequently carried in the nasopharynx, is responsible for a wide spectrum of infections in humans, including severe invasive pneumococcal diseases (IPDs). In nontropical climates, IPDs typically display a marked
M. Domenech de Cellès +7 more
semanticscholar +1 more source
IL-17 can be protective or deleterious in murine pneumococcal pneumonia [PDF]
Streptococcus pneumoniae is the major bacterial cause of community-acquired pneumonia, and the leading agent of childhood pneumonia deaths worldwide. Nasal colonization is an essential step prior to infection.
Bayes, Hannah K. +4 more
core +3 more sources
Selective pressure: Rise of the nonencapsulated pneumococcus
Introduction Streptococcus pneumoniae (pneumococcus) remains the leading cause of bacterial otitis media (OM), pneumonia, and meningitis despite routine vaccination spanning decades [1,2].
J. Bradshaw, L. McDaniel
semanticscholar +1 more source
Phosphatidylcholine (lecithin) stimulating effect on pathogenic properties of pneumococcus
The authors have studied the effect of phosphatidylcholine (lecithin) - a derivative of choline - on the biological properties of streptococus pneumonia.
A. S. Kvetnaya, L. I. Zhelezova
doaj +1 more source
Overlapping functionality of the Pht proteins in zinc homeostasis of streptococcus pneumoniae [PDF]
Streptococcus pneumoniae is a globally significant pathogen that causes a range of diseases, including pneumonia, sepsis, meningitis, and otitis media. Its ability to cause disease depends upon the acquisition of nutrients from its environment, including
Eijkelkamp, Bart A. +5 more
core +1 more source
SEROLOGICAL REACTIONS IN PNEUMONIA WITH A NON-PROTEIN SOMATIC FRACTION OF PNEUMOCOCCUS
1. Sera from individuals acutely ill with lobar pneumonia possess the capacity to precipitate in high titre a non-protein somatic fraction derived from pneumococci (Fraction C). Following crisis the reaction is no longer demonstrable. 2.
W. Tillett, T. Francis
semanticscholar +1 more source
Variation of growth characteristics of pneumococcus with environmental conditions
Pneumococcus is exposed to a variety of temperature and oxygen levels in the upper respiratory tract and as it invades the lung, tissues, and blood.
A. Tóthpál +4 more
semanticscholar +1 more source
Vaccines to Prevent Meningitis: Historical Perspectives and Future Directions
Despite advances in the development and introduction of vaccines against the major bacterial causes of meningitis, the disease and its long-term after-effects remain a problem globally.
Mark R. Alderson +5 more
doaj +1 more source

