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| Description
| - Protein concentration measurement in the urine can be problematic in the presence of Bence Jones protein. We have carried out an external quality control assessment with the participation of 79 clinical biochemistry laboratories from the Czech Republic and Slovakia.The laboratories received a reference urine sample obtained from a patient with multiple myeloma and lambda free light chain proteinuria and were asked to type the paraprotein using immunofixation and to measure total urinary protein using their established method, most commonly turbidimetry, pyrogallol red assay, and biuret assay. There was a very wide inter-laboratory variability in the protein concentration readouts with up to three-fold difference in some cases. High-resolution two-dimensional electrophoresis and linear mass spectrometry showed that a high proportion of the urinary paraprotein was composed of lambda light chain fragments with molecular weight of 12kDa. Our results highlight the challenges of reliable and reproducible measurement of urinary protein concentration in the presence of Bence Jones protein.
- Protein concentration measurement in the urine can be problematic in the presence of Bence Jones protein. We have carried out an external quality control assessment with the participation of 79 clinical biochemistry laboratories from the Czech Republic and Slovakia.The laboratories received a reference urine sample obtained from a patient with multiple myeloma and lambda free light chain proteinuria and were asked to type the paraprotein using immunofixation and to measure total urinary protein using their established method, most commonly turbidimetry, pyrogallol red assay, and biuret assay. There was a very wide inter-laboratory variability in the protein concentration readouts with up to three-fold difference in some cases. High-resolution two-dimensional electrophoresis and linear mass spectrometry showed that a high proportion of the urinary paraprotein was composed of lambda light chain fragments with molecular weight of 12kDa. Our results highlight the challenges of reliable and reproducible measurement of urinary protein concentration in the presence of Bence Jones protein. (en)
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| Title
| - The problems of proteinuria measurement in urine with presence of Bence Jones protein
- The problems of proteinuria measurement in urine with presence of Bence Jones protein (en)
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| skos:prefLabel
| - The problems of proteinuria measurement in urine with presence of Bence Jones protein
- The problems of proteinuria measurement in urine with presence of Bence Jones protein (en)
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| skos:notation
| - RIV/60162694:G44__/11:00002484!RIV12-MO0-G44_____
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
| - I, P(NS10387), P(NS10406), Z(MO0FVZ0000501), Z(MZ0FNHK2005)
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| http://linked.open...iv/cisloPeriodika
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/60162694:G44__/11:00002484
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - Bence Jones protein; Proteinuria; Electrophoresis; Free light chains; Monoclonal gammopathies Bence Jones protein; Proteinuria; Electrophoresis; Free light chains; Monoclonal gammopathies Bence-Jones protein, proteinuria, electrophoresis, free light chains, monoclonal gammapathies (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...odStatuVydavatele
| - GB - Spojené království Velké Británie a Severního Irska
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/nazevZdroje
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...vavai/riv/projekt
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| http://linked.open...UplatneniVysledku
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| http://linked.open...v/svazekPeriodika
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| http://linked.open...iv/tvurceVysledku
| - Hernychová, Lenka
- Hájek, Roman
- Maisnar, Vladimír
- Palička, Vladimír
- Stulík, Jiří
- Spáčilová, Jana
- Friedecký, Bedřich
- Tichý, Miloš
- Buchler, Tomáš
- Vávrová, J.
- Špirková, Jana
- Žaloudková, Lenka
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| http://linked.open...ain/vavai/riv/wos
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| http://linked.open...n/vavai/riv/zamer
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| number of pages
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| http://localhost/t...ganizacniJednotka
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| is http://linked.open...avai/riv/vysledek
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