The soluble transferrin receptor (TfR)-F-Index is not applicable as a test for iron status in patients with chronic lymphocytic leukemia.
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The soluble transferrin receptor (TfR)-F-Index is not applicable as a test for iron status in patients with chronic lymphocytic leukemia. / Metzgeroth, Georgia; Kripp, Melanie; Müller, Nadine; Schultheis, Beate; Bonatz, Karin; Walz, Christoph; Dorn-Beineke, Alexandra; Hastka, Jan.
in: CLIN CHEM LAB MED, Jahrgang 47, Nr. 10, 10, 2009, S. 1291-1295.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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T1 - The soluble transferrin receptor (TfR)-F-Index is not applicable as a test for iron status in patients with chronic lymphocytic leukemia.
AU - Metzgeroth, Georgia
AU - Kripp, Melanie
AU - Müller, Nadine
AU - Schultheis, Beate
AU - Bonatz, Karin
AU - Walz, Christoph
AU - Dorn-Beineke, Alexandra
AU - Hastka, Jan
PY - 2009
Y1 - 2009
N2 - BACKGROUND: The soluble transferrin receptor (sTfR) is established as a test for iron deficiency (ID). In chronic lymphocytic leukemia (CLL), sTfR is not reliable for screening for ID as the latter is strongly dependent on tumor burden. METHODS: We investigated whether the influence of the tumor load can be excluded or minimized using the sTfR/log ferritin ratio (TfR-F-Index) and the C-reactive protein (CRP)-adjusted TfR-F-Index in 87 patients with CLL. sTfR was measured nephelometrically (normal: 0.81-1.75 mg/L). A cut-off value of 1.5 for the TfR-F-Index and 0.8 for the CRP-adjusted TfR-F-Index, in patients with a CRP >5 mg/L, was used. RESULTS: All Binet A patients had normal sTfR values (1.34+/-0.2 mg/L), TfR-F-Index (0.67+/-0.2) and a CRP-adjusted TfR-F-Index. In Binet B and C, sTfR and the TfR-F-Index were significantly increased compared to Binet A patients (p
AB - BACKGROUND: The soluble transferrin receptor (sTfR) is established as a test for iron deficiency (ID). In chronic lymphocytic leukemia (CLL), sTfR is not reliable for screening for ID as the latter is strongly dependent on tumor burden. METHODS: We investigated whether the influence of the tumor load can be excluded or minimized using the sTfR/log ferritin ratio (TfR-F-Index) and the C-reactive protein (CRP)-adjusted TfR-F-Index in 87 patients with CLL. sTfR was measured nephelometrically (normal: 0.81-1.75 mg/L). A cut-off value of 1.5 for the TfR-F-Index and 0.8 for the CRP-adjusted TfR-F-Index, in patients with a CRP >5 mg/L, was used. RESULTS: All Binet A patients had normal sTfR values (1.34+/-0.2 mg/L), TfR-F-Index (0.67+/-0.2) and a CRP-adjusted TfR-F-Index. In Binet B and C, sTfR and the TfR-F-Index were significantly increased compared to Binet A patients (p
M3 - SCORING: Zeitschriftenaufsatz
VL - 47
SP - 1291
EP - 1295
JO - CLIN CHEM LAB MED
JF - CLIN CHEM LAB MED
SN - 1434-6621
IS - 10
M1 - 10
ER -