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Plasma donation induces a protein expression profile shift in circulating human blood

Flickenger, R.

2021-10-31 biochemistry
10.1101/2021.10.30.466597 bioRxiv
Show abstract

Commercial plasma donation yields a change in protein concentration similar to that observed in therapeutic plasma exchange (TPE) in humans. The post-donation expression profile shows an increase in many proteins after even a single donation, and the effect is enhanced with additional donations. Unlike TPE, human plasma donation returns saline without albumin to the donor, thus eliminating supplemental albumin as a contributing factor. The observed fold change falls outside the variation expected by natural circadian expression changes. N=6 humans (four donors, one monthly control and one circadian test). Seventeen antibody tests were performed, measuring the concentration of 507 proteins for each test.

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