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Seasonal changes in activities of human neutrophils in vitro

Inflammation Research, ISSN: 1023-3830, Vol: 61, Issue: 1, Page: 11-16
2012
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Metric Options:   Counts1 Year3 Year

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Article Description

Objective and design We present a retrospective analysis of previously collected blood samples to determine whether the immune response of neutrophils depends on the season i.e., short versus long days, in which blood samples were collected. Methods The bactericidal activity and adhesive capacity of neutrophils, the production of reactive oxygen species (ROS), and CD11b/CD18 molecule expression level were investigated. The investigated neutrophils were divided into two groups based on the time of blood collection: the winter season with short days and the summer season with long days. Results We found seasonal variation in measurements of all the analyzed functional responses of neutrophils to stimuli. The strongest adhesion, as well as maximum values of ROS production, was presented by neutrophils isolated from the summer group. The highest bactericidal activity of neutrophils was also observed in blood donors from summer group. Conclusions The magnitude of the immune functional activity of neutrophils varies with the season of the year and is decreased in winter. © Springer Basel AG 2011.

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