Duarte D, Taveira-Gomes T, Sokhatska O, Palmares C, Costa R, Negrão R, Guimarães JT, Delgado L, Soares R, Moreira A. Increased circulating platelet microparticles as a potential biomarker in asthma.
Allergy 2013;
68:1073-5. [PMID:
23889600 DOI:
10.1111/all.12190]
[Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/24/2013] [Indexed: 01/27/2023]
Abstract
BACKGROUND
Endothelial (EMPs) and platelet microparticles (PMPs) have been studied as biomarkers in several inflammatory diseases and as central players in intercellular communication.
METHODS
In this cross-sectional study, we aimed to assess microparticle levels in asthma. Circulating microparticles and inflammatory and angiogenic markers were assessed by clinical and laboratorial evaluation, flow cytometry, and immunoassays, in a group of 20 asthmatic and 15 nonasthmatic subjects.
RESULTS
Circulating levels of PMPs (either CD31+/42b+ or CD31+/42b+/AnV+) were significantly increased in asthmatics (P = 0.021) even after adjustment for confounders. Apoptotic EMPs (CD31+/42b--/AnV+) were significantly increased before (P = 0.005) but not after adjustments (P = 0.117).
CONCLUSIONS
We propose that PMPs may be putative asthma biomarkers, playing a role in asthma pathophysiology.
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