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1. IFCC primary reference procedures for the measurement of catalytic activity concentrations of enzymes at 37 degrees C. Part 2. Reference procedure for the measurement of catalytic concentration of creatine kinase

Author

Hideo Misaki, Arlette Vialle, Carlo A. Ferrero, Rainer Klauker, Poul J. Jørgensen, Wieland Hoelzel, Mauro Panteghini, Takashi Kanno, Jean-Marc Lessinger, Gerhard Weidemann, Pascale Clerc-Renaud, Jean Pauwels, Thomas P. J. Linsinger, Gerhard Schumann, Georges Férard, Lothar Siekmann, R. Bonora, Ferruccio Ceriotti, Heinz Schimmel, Paul F H Franck, F. Javier Gella, Art Kessne, and N Kristiansen

Subjects
chemistry.chemical_classification, Chromatography, Catalytic concentration, Biochemistry (medical), Clinical Biochemistry, General Medicine, Hydrogen-Ion Concentration, Reference Standards, Clinical method, Catalysis, Body Temperature, Enzymes, chemistry.chemical_compound, Kinetics, Enzyme, Biochemistry, chemistry, Reference values, Lactate dehydrogenase, Chemistry, Clinical, Humans, Thermodynamics, Alanine aminotransferase, Quantitative analysis (chemistry)
Abstract

This paper is the second in a series dealing with reference procedures for the measurement of catalytic activity concentrations of enzymes at 37 degrees C and the certification of reference preparations. Other parts deal with: Part 1. The Concept of Reference Procedures for the Measurement of Catalytic Activity Concentrations of Enzymes; Part 3. Reference Procedure for the Measurement of Catalytic Concentration of Lactate Dehydrogenase; Part 4. Reference Procedure for the Measurement of Catalytic Concentration of Alanine Aminotransferase; Part 5. Reference Procedure for the Measurement of Catalytic Concentration of Aspartate Aminotransferase; Part 6. Reference Procedure for the Measurement of Catalytic Concentration of gamma-Glutamyltransferase; Part 7. Certification of Four Reference Materials for the Determination of Enzymatic Activity of gamma-Glutamyltransferase, Lactate Dehydrogenase, Alanine Aminotransferase and Creatine Kinase at 37 degrees C. A document describing the determination of preliminary reference values is also in preparation. The pro- described 30 degrees C IFCC reference method (1). Differences are tabulated and commented on in Appendix 3.

Published
2002

2. IFCC Primary Reference Procedures for the Measurement of Catalytic Activity Concentrations of Enzymes at 37°C. Part 4. Reference Procedure for the Measurement of Catalytic Concentration of Alanine Aminotransferase

Author

Art Kessner, Georges Férard, Ferruccio Ceriotti, Hideo Misaki, Paul F H Franck, Françoise Schiele, Mauro Panteghini, Jean Pauwels, Rainer Klauke, Carlo A. Ferrero, Lothar Siekmann, Gerhard Weidemann, F. Javier Gella, Gerhard Schumann, Poul J. Jørgensen, Jean-Marc Lessinger, Takashi Kanno, N Kristiansen, Thomas P. J. Linsinger, Wieland Hoelzel, R. Bonora, and Heinz Schimmel

Subjects
chemistry.chemical_classification, Chromatography, biology, Chemistry, Catalytic concentration, Biochemistry (medical), Clinical Biochemistry, L-Lactate dehydrogenase, General Medicine, Catalysis, chemistry.chemical_compound, Enzyme, Biochemistry, Reference values, Lactate dehydrogenase, biology.protein, Creatine kinase, Alanine aminotransferase
Abstract

This paper is the fourth in a series dealing with reference procedures for the measurement of catalytic activity concentrations of enzymes at 37 degrees C and the certification of reference preparations. Other parts deal with: Part 1. The Concept of Reference Procedures for the Measurement of Catalytic Activity Concentrations of Enzymes; Part 2. Reference Procedure for the Measurement of Catalytic Concentration of Creatine Kinase; Part 3. Reference Procedure for the Measurement of Catalytic Concentration of Lactate Dehydrogenase; Part 5. Reference Procedure for the Measurement of Catalytic Concentration of Aspartate Aminotransferase; Part 6. Reference Procedure for the Measurement of Catalytic Concentration of Gamma-Glutamyltransferase; Part 7. Certification of Four Reference Materials for the Determination of Enzymatic Activity of Gamma-Glutamyltransferase, Lactate Dehydrogenase, Alanine Aminotransferase and Creatine Kinase at 37 degrees C. A document describing the determination of preliminary upper reference limits is also in preparation. The procedure described here is deduced from the previously described 30 degrees C IFCC reference method. Differences are tabulated and commented on in Appendix 2.

Published
2002
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3. IFCC Primary Reference Procedures for the Measurement of Catalytic Activity Concentrations of Enzymes at 37°C. Part 5. Reference Procedure for the Measurement of Catalytic Concentration of Aspartate Aminotransferase

Author

G. Schumann, R. Bonora, F. Ceriotti, G. Férard, C. A. Ferrero, P. F. H. Franck, F.-J. Gella, W. Hoelzel, P. J. Jørgensen, T. Kanno, A. Kessner, R. Klauke, N. Kristiansen, J.-M. Lessinger, T. P. J. Linsinger, H. Misaki, M. Panteghini, J. Pauwels, F. Schiele, and H. G. Schimmel

Subjects
Biochemistry (medical), Clinical Biochemistry, General Medicine
Published
2002
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4. IFCC Primary Reference Procedures for the Measurement of Catalytic Activity Concentrations of Enzymes at 37°C. Part 7. Certification of Four Reference Materials for the Determination of Enzymatic Activity of γ-Glutamyltransferase, Lactate Dehydrogenase, Alanine Aminotransferase and Creatine Kinase according to IFCC Reference Procedures at 37°C

Author

Art Kessner, F-Javier Gella, Georges Férard, Paul F H Franck, Jean Pauwels, Mathias M. Mueller, Françoise Schiele, Rainer Klauke, Gerhard Schumann, Mauro Panteghini, Ferruccio Ceriotti, Gerhard Weidemann, Takashi Kanno, Carlo A. Ferrero, Jean-Claude Forest, Carl A Burtis, Lothar Siekmann, Arlette Vialle, N Kristiansen, Pascale Clerc-Renaud, R. Bonora, Heinz Schimmel, Hideo Misaki, Poul J. Jørgensen, Jean-Marc Lessinger, Wieland Hoelzel, and Thomas P. J. Linsinger

Subjects
chemistry.chemical_classification, Chromatography, biology, Biochemistry (medical), Clinical Biochemistry, General Medicine, Catalysis, Internal quality, chemistry.chemical_compound, Enzyme, Biochemistry, chemistry, Lactate dehydrogenase, biology.protein, media_common.cataloged_instance, Creatine kinase, Alanine aminotransferase, Gamma-glutamyltransferase, European union, media_common
Abstract

This paper is the seventh in a series dealing with reference procedures for the measurement of catalytic activity concentrations of enzymes at 37 degrees C and the certification of reference preparations. Other parts deal with: Part 1. The Concept of Reference Procedures for the Measurement of Catalytic Activity Concentrations of Enzymes; Part 2. Reference Procedure for the Measurement of Catalytic Concentration of Creatine Kinase; Part 3. Reference Procedure for the Measurement of Catalytic Concentration of Lactate Dehydrogenase; Part 4. Reference Procedure for the Measurement of Catalytic Concentration of Alanine Aminotransferase; Part 5. Reference Procedure for the Measurement of Catalytic Concentration of Aspartate Aminotransferase; Part 6. Reference Procedure for the Measurement of Catalytic Concentration of Gamma-Glutamyltransferase. A document describing the determination of preliminary reference values is also in preparation. The certification of the catalytic activity concentrations as determined by the recently elaborated IFCC primary reference methods at 37 degrees C of four enzyme preparations, namely IRMM/IFCC 452 (gamma-glutamyltransferase), IRMM/IFCC 453 (lactate dehydrogenase 1), IRMM/IFCC 454 (alanine aminotransferase) and IRMM/IFCC 455 (creatine kinase) is described. Homogeneity data were derived from previous results. Stability was assessed using recently obtained data as well as data from previous stability studies. The collaborative study for value assignment was performed under a strict quality control scheme to ensure traceability to the primary reference method. Uncertainty of the materials was assessed in compliance with the Guide to the Expression of Uncertainty in Measurement. The certified values obtained at 37 degrees C are 1.90 microkat/l +/- 0.04 microkat/l (114.1 U/l +/- 2.4 U/l), for gamma-glutamyltransferase, 8.37 microkat/l +/- 0.12 microkat/l (502 U/l +/- 7 U/l), for lactate dehydrogenase 1, 3.09 microkat/l +/- 0.07 microkat/l (186 U/l +/- 4 U/l), for alanine aminotransferase and 1.68 microkat/l +/- 0.07 microkat/l (101 U/l +/- 4 U/l), for creatine kinase. The materials are intended for internal quality control as well as for the evaluation of test systems as required by recent European Union legislation. Furthermore, the materials can be used to transfer accuracy from a reference method to a routine procedure provided the procedures exhibit the same analytical specificity and the certified materials are commutable.

Published
2002
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5. IFCC Primary Reference Procedures for the Measurement of Catalytic Activity Concentrations of Enzymes at 37C. Part 6. Reference Procedure for the Measurement of Catalytic Concentration of γ-Glutamyltransferase

Author

Georges Férard, T Kanno, A Kessner, Jean Pauwels, R. Bonora, Heinz Schimmel, Jean-Marc Lessinger, Françoise Schiele, N Kristiansen, Rainer Klauke, F-Javier Gella, Wieland Hoelzel, Mauro Panteghini, Ferruccio Ceriotti, Thomas P. J. Linsinger, Gerhard Schumann, Hideo Misaki, Paul F H Franck, Carlo A. Ferrero, and Poul J. Jørgensen

Subjects
chemistry.chemical_classification, Primary (chemistry), Enzyme, Chemistry, Catalytic concentration, Biochemistry (medical), Clinical Biochemistry, Organic chemistry, General Medicine, Catalysis
Published
2002
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6. IFCC Primary Reference Procedures for the Measurement of Catalytic Activity Concentrations of Enzymes at 37°C. Part 3. Reference Procedure for the Measurement of Catalytic Concentration of Lactate Dehydrogenase

Author

T Kanno, Ferruccio Ceriotti, Poul J. Jørgensen, Jean Pauwels, F-Javier Gella, Mauro Panteghini, Carlo A. Ferrero, Gerhard Weidemann, Hideo Misaki, Paul F H Franck, Jean-Marc Lessinger, R. Bonora, Gerhard Schumann, Heinz Schimmel, A Kessner, Rainer Klauke, Lothar Siekmann, Georges Férard, N Kristiansen, Wieland Hoelzel, Thomas P. J. Linsinger, Pascale Clerc-Renaud, and Arlette Vialle

Subjects
Quality Control, chemistry.chemical_classification, Chromatography, biology, Catalytic concentration, Biochemistry (medical), Clinical Biochemistry, General Medicine, Hydrogen-Ion Concentration, Reference Standards, Body Temperature, Enzymes, Catalysis, Kinetics, chemistry.chemical_compound, Enzyme, chemistry, Chemistry, Clinical, Lactate dehydrogenase, biology.protein, Humans, Thermodynamics, Creatine kinase, Alanine aminotransferase, Reference standards
Abstract

This paper is the third in a series dealing with reference procedures for the measurement of catalytic activity concentrations of enzymes at 37 degrees C and the certification of reference preparations. Other parts deal with: Part 1. The Concept of Reference Procedures for the Measurement of Catalytic Activity Concentrations of Enzymes; Part 2. Reference Procedure for the Measurement of Catalytic Concentration of Creatine Kinase; Part 4. Reference Procedure for the Measurement of Catalytic Concentration of Alanine Aminotransferase; Part 5. Reference Procedure for the Measurement of Catalytic Concentration of Aspartate Aminotransferase; Part 6. Reference Procedure for the Measurement of Catalytic Concentration of gamma-Glutamyltransferase; Part 7. Certification of Four Reference Materials tamyltransferase, Lactate Dehydrogenase, Alanine Aminotransferase and Creatine Kinase at 37 degrees C. A document describing the determination of preliminary upper reference limits is also in preparation. The procedure described here is deduced from the previously described 30 degrees C IFCC reference method (1). Differences are tabulated and commented on in Appendix 1.

Published
2002
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7. IFCC Primary Reference Procedures for the Measurement of Catalytic Activity Concentrations of Enzymes at 37°C. Part 1. The Concept of Reference Procedures for the Measurement of Catalytic Activity Concentrations of Enzymes

Author

Takashi Kanno, Arlette Vialle, Ferruccio Ceriotti, R. Bonora, Heinz Schimmel, Hideo Misaki, Lothar Siekmann, Mauro Panteghini, N Kristiansen, Thomas P. J. Linsinger, Françoise Schiele, Georges Férard, Carlo A. Ferrero, Poul J. Jørgensen, Rainer Klauke, Jean Claude Forest, Art Kessner, Paul F H Franck, Pascale Clerc-Renaud, Jean Pauwels, Carl A Burtis, Wieland Hoelzel, Mathias M. Mueller, Gerhard Weidemann, Jean Marc Lessinger, Gerhard Schumann, and F. Javier Gella

Subjects
Quality Assurance, Health Care, Catalytic concentration, Clinical Biochemistry, Catalysis, chemistry.chemical_compound, Lactate dehydrogenase, Humans, Alanine aminotransferase, chemistry.chemical_classification, Primary (chemistry), biology, Chemistry, Biochemistry (medical), Temperature, Reproducibility of Results, General Medicine, Hydrogen-Ion Concentration, Reference Standards, Enzymes, Kinetics, Enzyme, Biochemistry, Chemistry, Clinical, Reference values, biology.protein, Thermodynamics, Creatine kinase
Abstract

This paper is the first in a series dealing with reference procedures for the measurement of catalytic activity concentrations of enzymes at 37 degrees C and with the certification of reference preparations. Other parts deal with: Part 2. Reference Procedure for the Measurement of Catalytic Concentration of Creatine Kinase; Part 3. Reference Procedure for the Measurement of Catalytic Concentration of Lactate Dehydrogenase; Part 4. Reference Procedure for the Measurement of Catalytic Concentration of Alanine Aminotransferase; Part 5. Reference Procedure for the Measurement of Catalytic Concentration of Aspartate Aminotransferase; Part 6. Reference Procedure for the Measurement of Catalytic fication of Four Reference Materials for the Determination of Enzymatic Activity of y-Glutamyltransferase, Lactate Dehydrogenase, Alanine Aminotransferase and Creatine Kinase at 37 degrees C. A document describing the determination of preliminary reference values is also in preparation.

Published
2002
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