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Avaliação morfológica do concentrado autólogo de plaquetas em cães sob refrigeração e criopreservação em DMSO 6% / [Morphological evaluation of the autologous platelet concentrate in dogs under refrigeration and criopreservation in 6% DMSO]

Arcila, D. F. S; Carmona, E. O; Colorado, S. J; Corteze, A. A; Arcila, J. C. S; Leme, F. O. P; Rezende, C. M. F.
Arq. bras. med. vet. zootec. (Online); 72(5): 1989-1992, Sept.-Oct. 2020.
Artigo em Português | LILACS-Express | ID: biblio-1131572

Resumo

The morphological characteristics of the autologous platelet concentrate (APC) of 31 dogs were evaluated after cooling and freezing in 6% DMSO. Blood from the jugular vein of each patient was collected and centrifuged at 191g for six minutes to obtain APC. In the fresh sample, the platelet count, MPV, PDW and cell morphology were evaluated. Four samples of each animal were sent for storage, one refrigerated at 4°C for seven days, another for 30 days and two more stored in a freezer at -80°C in the same time interval, using 6% DMSO as cryoprotectant. The conserved samples were submitted to the same laboratory analysis as the fresh sample. There was a difference between fresh and preserved samples for platelet count, cell concentration, MPV and PDW (P<0.05), except in the 30-day refrigerated group, which showed severe morphological changes. In the frozen group for seven days, no difference was observed in the percentage of activation (P>0.05). The results obtained lead to the conclusion that cryopreservation with 6% DMSO at -80°C for seven days is a favorable option for the maintenance of platelet concentrations and the morphological characteristics of APC in dogs.(AU)

Assuntos

Animais Cães
Biblioteca responsável: BR1.1