Capillary Electrophoresis (CE) vs. HPLC in the determination of asialo-Tf, a crucial marker for the reliable interpretation of questioned CDT increases

Clinica Chimica Acta; International Journal of Clinical Chemistry
Nadia Maria PorpigliaF Tagliaro

Abstract

CDT is a collective biomarker including asialo- and disialo-Tf, but researchers have generally focused attention on disialo-Tf, because of its easier detectability, since asialo-Tf is typically not detectable by the current methods in abstinent individuals, social drinkers and in many alcohol abusers with moderate CDT increases. In the search of a confirmation marker of alcohol-related CDT increases, the detectability of asialo-Tf was re-evaluated comparatively by using CE vs. HPLC. 468 serum samples compulsorily drawn in a forensic/administrative context were analyzed by CE and HPLC to compare their sensitivity towards asialo-Tf. CE allowed the identification of asialo-Tf in 108 out of 165 CDT "positive" cases, based on disialo-Tf measurement (cut-off 1.8%). HPLC showed a detectable asialo-Tf peak only in 2 cases. In addition, in some cases of disputed CDT increases, the quasi-absence of this Tf component in front of an important increase of disialo-Tf allowed the ruling out of a diagnosis of alcohol abuse, in agreement with all other clinical and laboratory data. The present work shows a superior performance of CE vs. HPLC for the determination of asialo-Tf and the importance of this CDT component to avoid misinterpretation o...Continue Reading

Citations

Jul 12, 2019·Alcohol and Alcoholism : International Journal of the Medical Council on Alcoholism·Agnese VeronesiCristina Rota

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