title: Posttransfusional changes of 2,3-diphosphoglycerate and nucleotides in CPD-SAGM-preserved erythrocytes.
abstract: BACKGROUND
  Posttransfusional changes of preserved red blood cells can influence the oxygen equilibrium curve which is mainly affected by the concentration of erythrocyte 2,3-diphosphoglycerate (DPG).
  
  
  METHODS
  The regeneration kinetics of DPG and nucleotides (ATP, ADP, AMP, GTP, GDP) was determined over a period of 0-48 h in surgically treated patients following transfusion of DPG-depleted packed red cells stored for 14 days in CPD-SAGM.
  
  
  RESULTS
  3 h after transfusion the DPG levels raised up to 40% of the patients' prior DPG concentrations. Complete regeneration of the DPG concentrations occurred 36-48 h after transfusion. Changes in the nucleotide pattern indicate, after a temporary decrease of ATP and GTP levels (after 10-30 min) and an activation phase (after 3-12 h), the full regeneration of these parameters 24-48 h after transfusion.
  
  
  CONCLUSIONS
  The regeneration kinetics of DPG should be taken into consideration for transfusions with blood units stored for more than 14 days, especially in patients with reduced compensatory mechanisms (coronary and cerebral scleroses, pacemaker, etc.) and large transfusion volumes.
authors.affiliation: Institute für Transfusiologie und Transplantologie, Medizinische Fakultät (Charité), Humboldt-Universität zu Berlin.
authors.forename: G
authors.initials: G
authors.lastname: Matthes
authors.forename: S
authors.initials: S
authors.lastname: Strunk
authors.forename: W
authors.initials: W
authors.lastname: Siems
authors.forename: T
authors.initials: T
authors.lastname: Grune
mesh_terms: D019794:2,3-Diphosphoglycerate; D000328:Adult; D001793:Blood Preservation; D001803:Blood Transfusion; D004163:Diphosphoglyceric Acids / Q000097:blood*; D004912:Erythrocytes / Q000187:drug effects* / Q000378:metabolism; D005260:Female; D006452:Hemoglobinometry; D006801:Humans; D009711:Nucleotides / Q000097:blood*; D013997:Time Factors
chemical_list: D004163:Diphosphoglyceric Acids; D009711:Nucleotides; D019794:2,3-Diphosphoglycerate