title: [The quality of platelet concentrates in dependence on storage time before pathogen inactivation].
abstract: Pathogen inactivation procedure performed just before distribution of platelet concentrates (PCs) may decrease costs caused by loss of these components due to relatively short expiry date.
  
  
  OBJECTIVE
  To evaluate the quality of PCs pathogen inactivated on the first or the fifth day of storage.
  
  
  METHODS
  PCs preparated from buffy-coats were suspended in platelet additive solution (Intersol, Baxter Healthcare Corporation, Belgium). The photochemical pathogen inactivation was performed on the 1st or the 5th day of storage using amotosalen and UVA (Cerus, Europe BV). PCs were stored for 7 days.
  
  
  RESULTS
  There were observed increased expression of CD62 and CD63, elevated activity of LDH and lower concentration of glucose in PCs pathogen inactivated on day 1 compare to the control group. PCs pathogen inactivated on day 5 showed decreased expression of CD62 and CD63 compare to the control group. There were no significant differences in platelet number, pH, lactate concentration, hypotonic shock response and release of platelet derived microparticles in both groups of pathogen inactivated PCs.
  
  
  CONCLUSIONS
  Time of storage of PCs before pathogen inactivation has no significant impact on PCs quality. Pathogen inactivation procedure performed just after having received request for PCs is more cost effective than the routine pathogen inactivation in all PCs before storage.
authors.affiliation: Regionaine Centrum Krwiodawstwa i Krwiolecznictwa w Białymstoku.
authors.forename: Magdalena
authors.initials: M
authors.lastname: Bujno
authors.forename: Alina
authors.initials: A
authors.lastname: Lipska
authors.forename: Agnieszka
authors.initials: A
authors.lastname: Zebrowska
authors.forename: Jolanta
authors.initials: J
authors.lastname: Wróbel
authors.forename: Ewa
authors.initials: E
authors.lastname: Gawrylak-Dryja
authors.forename: Marta
authors.initials: M
authors.lastname: Nedzi
authors.forename: Piotr
authors.initials: P
authors.lastname: Radziwon
mesh_terms: D001771:Blood Banks / Q000191:economics*; D001792:Blood Platelets; D001793:Blood Preservation / Q000191:economics* / Q000379:methods*; D003362:Cost-Benefit Analysis; D006801:Humans; D050296:Microbial Viability; D010983:Plateletpheresis / Q000191:economics* / Q000379:methods*; D011044:Poland; D038301:Virus Inactivation; D000094902:Blood Banking / Q000379:methods*