Influence of cryopreservation and mechanical stimulation on equine Autologous Conditioned Plasma (ACP®)

Tierärztliche Praxis. Ausgabe G, Grosstiere/Nutztiere
M MageedJ-C Ionita

Abstract

To determine the influence of cryopreservation at two different temperatures on platelet concentration, growth factor (GF) levels and platelet activation parameters in equine ACP®; moreover, to determine if adding mechanical ACP® stimulation to freeze-thaw activation amplifies GF release from platelets. Firstly, blood from five horses was used to prepare ACP®. Platelet, platelet derived growth factor BB (PDGF-BB) and transforming growth factor β1 (TGF-β1) concentrations as well as mean platelet volume (MPV) and mean platelet component (MPC) were determined in fresh and corresponding ACP® samples after 2 months cryopreservation at -20 °C and -80 °C, respectively. Secondly, ACP® was prepared from blood of nine horses. Half of ACP® was activated using one freeze-thaw-cycle at -20 °C, whereas the rest was first vortexed. Their PDGF-BB and TGF-β1 concentrations were subsequently determined. Platelet concentration significantly decreased after -80 °C cryopreservation. PDGF-BB level augmented significantly after both storage methods, whereas TGF-β1 concentration was not significantly altered. MPV significantly increased after -20 °C cryopreservation. Both storage regimens induced a significant MPC decrease. No significant differences ...Continue Reading

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Citations

Jan 23, 2021·Animals : an Open Access Journal From MDPI·Iris RibitschFlorien Jenner

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