title: Effect of storage of samples at -80 degrees C on the assay of lipoprotein(a) by rate nephelometry (Beckman 360 Array).
abstract: The effect of storage of samples on the assay of lipoprotein(a) depends on the technique used. We have tested the automated Beckman 360 Array rate nephelometer using Dako anti-Lp(a) antibody, and an Immunofrance standard and control serum according to the technique of Gillery et al. We found a very high correlation between serum concentrations before freezing and those after three weeks and six months at -80 degrees C. Variations greater than 15% concerned only low levels of Lp(a) and were probably related to the precision of the technique at low concentrations.
authors.affiliation: Laboratoire de biochimie, centre hospitalier Louis-Pasteur, Colmar, France.
authors.forename: X
authors.initials: X
authors.lastname: Parent
authors.forename: Z
authors.initials: Z
authors.lastname: Ait Hmad
authors.forename: P
authors.initials: P
authors.lastname: Aberer
mesh_terms: D001793:Blood Preservation; D015925:Cryopreservation; D006801:Humans; D017270:Lipoprotein(a) / Q000097:blood*; D009391:Nephelometry and Turbidimetry / Q000295:instrumentation*
chemical_list: D017270:Lipoprotein(a)