[Preanalytical variations of proteic biomarkers].
In the area of proteomic, results of analysis were for a long time dependant on analytical variations. Nowadays, due to the emergence of new technologies and controls of data, these variations are less important than those due to preanalytical conditions, which are difficult to overcome. The reasons are due to the number of parameters and to the fact that the biologist is not always fully informed. In this document, we present the main preanalytical factors of variation, and their effects on the results of analysis. New technologies involving mass spectrometry are very promising, but they are very sensitive to parameters like the stability of samples and the choice of the clotting agent. Thus, it is more and more necessary to take these data into account.
Inserm U525 et Université Henri Poincaré, 30, rue Lionnois, 54000 Nancy, France. daniel.lambert@nancy.inserm.fr
Daniel
D
Lambert
Hind
H
Berrahmoune
Bernard
B
Herbeth
Gérard
G
Siest
Sophie
S
Visvikis-Siest
D000925:Anticoagulants / Q000494:pharmacology; D016477:Artifacts; D015415:Biomarkers / Q000097:blood* / Q000737:chemistry; D001800:Blood Specimen Collection / Q000295:instrumentation / Q000379:methods*; D002940:Circadian Rhythm; D005215:Fasting / Q000097:blood; D005260:Female; D006801:Humans; D008297:Male; D008597:Menstrual Cycle / Q000097:blood; D011480:Protease Inhibitors / Q000494:pharmacology; D012015:Reference Standards; D015203:Reproducibility of Results; D013048:Specimen Handling / Q000295:instrumentation / Q000379:methods
D000925:Anticoagulants; D015415:Biomarkers; D011480:Protease Inhibitors