title: [Technology optimization and properties study of factor IV complex concentrates].
abstract: OBJECTIVE
  To produce high quality factor IX complex concentrates with domestic ion exchanger. A human solvent-detergent (S/D) treated factor IX complex concentrates has been produced from fresh-frozen plasma using domestic DEAE-Sepharose fast flow ion exchange chromatagraphy and Ca3(PO4)2 adsorption. The properties of this new concentrates were compared with those of the concentrates obtained by foreign DEAE-Sapharose CL-6B.
  
  
  RESULTS
  The recovery of activity was 93.67 +/- 2.56% (n = 6) and 88.71 +/- 2 (n = 6), respectively. The specific activity of the concentrates was 7.36 +/- 0.96 U Factor IX: C/mg protein (n = 6). This new concentrates retained all the useful components with higher purity and lower thrombogenicity. Conclusion Domestic ion exchanger could replace foreign ion exchanger in producing high quality factor IX complex concentrates.
authors.affiliation: Department of Biopharmaceutics, West China School of Pharmacy, Sichuan University, Chengdu 610041, China.
authors.forename: Rong
authors.initials: R
authors.lastname: Zeng
authors.forename: Rong
authors.initials: R
authors.lastname: Yu
authors.forename: Xiaohong
authors.initials: X
authors.lastname: Li
authors.forename: Yangbin
authors.initials: Y
authors.lastname: Wu
authors.forename: Hui
authors.initials: H
authors.lastname: Qi
mesh_terms: D002848:Chromatography, DEAE-Cellulose; D003902:Detergents; D004340:Drug Contamination / Q000517:prevention & control*; D004591:Electrophoresis, Polyacrylamide Gel; D005164:Factor IX / Q000032:analysis / Q000302:isolation & purification* / Q000592:standards; D006801:Humans; D015203:Reproducibility of Results; D014462:Ultrafiltration
chemical_list: D003902:Detergents; D005164:Factor IX