The hemostatic properties of thawed pooled cryoprecipitate, maintained at ambient temperature, remain stable for up to 72 hours. Stocking a prethawed product may optimize inventory management, to ensure product availability for rapid transfusion. Further studies need to assess the potential risk of bacterial contamination arising from storage at ambient temperature to determine the maximum shelf life for cryoprecipitate after thawing.
LP and TP were comparable in terms of hemostatic variables up to 7 days of storage. Decreasing coagulation factor activity along with an increased activation risk during storage of LP needs to be balanced against availability to supply and clinical need when considering using LP with more than 7 days of storage.
MB-cryo contained a significantly higher content of FVIII and lower content of FXIII when compared to AS-cryo, with no difference in fibrinogen activity.
Five blends of poly(L-lactic acid) (PLLA) with poly(D,L-lactic-co-glycolic acid) (PLGA) were used to prepare microcarriers by a solvent evaporation technique. Microcarriers were evaluated as suitable scaffolds to facilitate retinal pigment epithelium (RPE) cell transplantation. The blend ratios were 90:10, 75:25, 50:50, 25:75, 10:90 (PLLA:PLGA). Samples of each microcarrier blend were coated with an extracellular matrix protein. Coated and uncoated microcarriers were seeded with a human RPE cell line. As the lactide unit content increased the size of microcarriers generally became larger and the surface more irregular. Cells remained proliferative and retained phenotype as confirmed by immunocytochemistry. Blends rich in PLLA were superior for maintenance of RPE cell viability. This study demonstrates for the first time the feasibility of using microcarriers as a vehicle for retinal cell transplantation for ocular disease.
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