AI Article Synopsis
- The study investigated how repeated platelet donations (plateletpheresis) affect P-selectin levels in blood donors.
- Results showed that platelet donors had higher soluble P-selectin (sP-selectin) levels compared to first-time whole blood donors, with frequent donations leading to consistently higher sP-selectin concentrations.
- The findings suggest that increased sP-selectin levels may be linked to the frequency of donations, but further research is needed to understand the underlying mechanisms.
Article Abstract
Background: We explored the effects of repeated plateletpheresis on the platelet P-selectin expression and soluble P-selectin (sP-selectin) concentrations in platelet donors.
Methods: Totally 289 platelet donors and 97 first-time whole blood (WB) donors were enrolled from the blood donor registry at the Fujian provincial blood center, China. The accumulative numbers of plateletpheresis in the last 2 y for participants were recorded, and the basal concentrations of platelet count, sP-selectin and total platelet P-selectin (pP-selectin) were determined.
Results: Platelet donors had significantly higher basal concentrations of sP-selectin compared to WB donors (24.12±7.33ng/mL vs. 20.74±5.44ng/mL, P<0.0001), with no difference in platelet count and pP-selectin concentrations. Increased numbers of platelet donation were correlated with a steady increase of sP-selectin (r=0.18, P=0.002). Multivariate regression analysis identified that the frequency of plateletpheresis is an independent factor for the rise of the sP-selectin concentration (t=2.64, P=0.009) while no association was found for pP-selectin and platelet count.
Conclusions: Repeated plateletpheresis could result in an increased basal concentration of sP-selectin in blood donors whereas not an alteration in the concentrations of total platelet P-selectin. It remains to be determined whether this might be a consequence of endothelial activation or platelet activation or some other phenomenon.
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| http://dx.doi.org/10.1016/j.cca.2016.04.022 | DOI Listing |
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