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Clinical Chemistry and Laboratory Medicine (CCLM)

Published in Association with the European Federation of Clinical Chemistry and Laboratory Medicine (EFLM)

Editor-in-Chief: Plebani, Mario

Ed. by Gillery, Philippe / Lackner, Karl J. / Lippi, Giuseppe / Melichar, Bohuslav / Payne, Deborah A. / Schlattmann, Peter / Tate, Jillian R.

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Rank 5 out of 30 in category Medical Laboratory Technology in the 2014 Thomson Reuters Journal Citation Report/Science Edition

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Preparation and Characterization of Reference Materials for Human Pancreatic Lipase: BCR 693 (from Human Pancreatic Juice) and BCR 694 (Recombinant)

Jean-Marc Lessinger / Pantaleimon Arzoglou / Paul Ramos / Athanase Visvikis / Stella Parashou / Derek Calam / Christos Profilis / Georges Férard

Citation Information: Clinical Chemistry and Laboratory Medicine. Volume 41, Issue 2, Pages 169–176, ISSN (Print) 1434-6621, DOI: 10.1515/CCLM.2003.028, June 2005

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There is a lack of certified reference material (CRM) for lipase catalytic activity. Consequently between-method comparability is very poor. The aim of this study was to produce two lipase CRMs, one from human pancreatic juice (BCR 693), and another using recombinant technologies (BCR 694). Lipase was purified from pancreatic juice, using column chromatography and isoelectric focusing. Recombinant lipase was produced with a transfected cell line and purified with column chromatography. Adding buffered bovine serum albumin and subsequent freeze-drying were used to stabilize both materials. A standardized titrimetric method was employed to compare their catalytic properties to those of two plasma pools of patients suffering from acute pancreatitis. About 5 kU (titrimetry, 37 °C) of each material were obtained. They were lyophilized without apparent modifications of their catalytic properties, which stayed identical to those exhibited by the enzyme present in patient's pools. Stability of both materials was estimated at several years when stored in a dry form at −20 °C. Both materials appear to have similar catalytic properties and stability and were found commutable as regards a reference method and a routine measurement procedure. An international certification campaign will be carried out to assign values to BCR 693 and BCR 694.

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Yoshiaki Iizuka, Shigeru Ueda, Toshiro Hanada, Wataru Tani, Hiroshi Adachi, Riichi Haga, Mari Yamaguchi, Wataru Kurotani, Mitsuo Sekiguchi, Dongchon Kang, and Shin-ichi Sakasegawa
Clinical Chemistry and Laboratory Medicine, 2012, Volume 50, Number 3
Jean-Marc Lessinger, Stella Parashou, Panteleimon Arzoglou, Paul Ramos, Catherine Chapus, Jeanine Dufaux, Wolfgang Junge, Christos Profilis, and Georges Férard
Clinical Chemistry and Laboratory Medicine, 2004, Volume 42, Number 1

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