Clinical Chemistry and Laboratory Medicine

Impact of biological and genetic features of leukemic cells on the occurrence of “shark fins” in the WPC channel scattergrams of the Sysmex XN hematology analyzers in patients with chronic lymphocytic leukemiaMargot Eggeron March 14, 2025 at 10:00 am

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Clin Chem Lab Med. 2025 Mar 17. doi: 10.1515/cclm-2025-0115. Online ahead of print. ABSTRACT OBJECTIVES: In patients with chronic lymphocytic leukemia (CLL), the white progenitor cell (WPC) channel of the Sysmex XN hematology analyzers typically shows a varying proportion of cells in the upper left field of the scattergram, resembling the shape of shark fins. … Read more

Impact of delayed centrifugation on the stability of 32 biochemical analytes in blood samples collected in serum gel tubes and stored at room temperatureMaría Sanz-Felision March 13, 2025 at 10:00 am

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Clin Chem Lab Med. 2025 Mar 14. doi: 10.1515/cclm-2025-0109. Online ahead of print. ABSTRACT OBJECTIVES: Evaluate the stability of 32 biochemical analytes in venous blood samples stored at 18-25 °C under different time delays prior to centrifugation. METHODS: A prospective study was conducted involving 33 healthy volunteers. Four venous blood samples were collected from each … Read more

Isotope dilution-liquid chromatography-tandem mass spectrometry-based candidate reference measurement procedures for the quantification of 24(R),25-dihydroxyvitamin D2 and 24(R),25-dihydroxyvitamin D3 in human serum and plasmaKerstin Kandleron March 5, 2025 at 11:00 am

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Clin Chem Lab Med. 2025 Mar 6. doi: 10.1515/cclm-2024-1139. Online ahead of print. ABSTRACT OBJECTIVES: Isotope dilution-liquid chromatography-tandem mass spectrometry (ID-LC MS/MS)-based candidate reference measurement procedures (RMPs) for the quantification of 24,25(OH)2D2 and 24,25(OH)2D3 in human serum and plasma are presented. METHODS: Quantitative nuclear magnetic resonance (qNMR) spectroscopic methodology was utilized to assign absolute content … Read more

A survey on measurement and reporting of total testosterone, sex hormone-binding globulin and free testosterone in clinical laboratories in EuropeNick Narinxon March 11, 2025 at 10:00 am

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Clin Chem Lab Med. 2025 Mar 12. doi: 10.1515/cclm-2024-1237. Online ahead of print. ABSTRACT OBJECTIVES: To compare clinical laboratory workflows for the assessment of androgens in men, focusing on total testosterone (T), sex hormone-binding globulin (SHBG) and free T, in clinical laboratories throughout Europe. METHODS: An internet-based survey that included questions related to pre-analytical, analytical … Read more

Concordance between the updated Elecsys cerebrospinal fluid immunoassays and amyloid positron emission tomography for Alzheimer’s disease assessment: findings from the Apollo studyHenrik Schinkeon March 11, 2025 at 10:00 am

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Clin Chem Lab Med. 2025 Mar 13. doi: 10.1515/cclm-2024-1476. Online ahead of print. ABSTRACT OBJECTIVES: The Apollo study was designed to support the clinical performance verification of the adjusted cutoffs of the Elecsys® β-Amyloid(1-42) (Aβ42) cerebrospinal fluid (CSF) II, β-Amyloid(1-40) (Aβ40) CSF, Phospho-Tau (181P) (pTau) CSF and Total-Tau (tTau) CSF immunoassays (Roche Diagnostics International Ltd) … Read more

Flow-cytometric MRD detection in pediatric T-ALL: a multicenter AIEOP-BFM consensus-based guided standardized approachMichaela Reiterováon March 11, 2025 at 10:00 am

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Clin Chem Lab Med. 2025 Mar 13. doi: 10.1515/cclm-2024-1503. Online ahead of print. ABSTRACT OBJECTIVES: Risk-based stratification approaches using measurable residual disease (MRD) successfully help to identify T-acute lymphoblastic leukemia (T-ALL) patients at risk of relapse, whose treatment outcomes are very poor. Because of T-ALL heterogeneity and rarity, a reliable and standardized approach for flow … Read more

Unveiling the power of R: a comprehensive perspective for laboratory medicine data analysisChaochao Maon March 10, 2025 at 10:00 am

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Clin Chem Lab Med. 2025 Mar 11. doi: 10.1515/cclm-2024-1193. Online ahead of print. ABSTRACT R language has gained traction in laboratory medicine for its statistical power and dynamic tools like RMarkdown and RShiny. However, there is limited literature summarizing R packages and functions tailored for laboratory medicine, making it difficult for clinical laboratory workers to … Read more

Establishing sex- and age-related reference intervals of serum glial fibrillary acid protein measured by the fully automated lumipulse systemLuisa Agnelloon March 9, 2025 at 10:00 am

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Clin Chem Lab Med. 2025 Mar 11. doi: 10.1515/cclm-2025-0093. Online ahead of print. ABSTRACT OBJECTIVES: To establish the reference intervals (RIs) of serum glial fibrillary acid protein (GFAP) measured by the fully automated Lumipulse system. METHODS: The study population consisted of 340 healthy individuals, including 251 blood donors and 89 outpatients, with a median age … Read more

Quality indicators in laboratory medicine: a 2020-2023 experience in a Chinese provinceLichao Zhangon March 7, 2025 at 11:00 am

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Clin Chem Lab Med. 2025 Mar 10. doi: 10.1515/cclm-2024-1457. Online ahead of print. ABSTRACT OBJECTIVES: The identification of reliable quality indicators (QIs) in the total testing process (TTP) is a pivotal step in quantifying laboratory service quality. This study comprehensively evaluated the performance quality and explored the factors affecting laboratory quality in Guangdong Province, China, … Read more

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