Clin Chem Lab Med. 2025 Nov 6. doi: 10.1515/cclm-2025-1449. Online ahead of print. NO ABSTRACT PMID:41189526 | DOI:10.1515/cclm-2025-1449
Clin Chem Lab Med. 2025 Nov 5. doi: 10.1515/cclm-2025-1055. Online ahead of print. ABSTRACT OBJECTIVES: To validate urine as a suitable matrix for copeptin measurements, derive a urinary copeptin/creatinine ratio in an apparently healthy sample of the population, and assess pre-analytical conditions such as collection type and storage temperatures that affect stability and recovery. METHODS: … Read more
Clin Chem Lab Med. 2025 Nov 4. doi: 10.1515/cclm-2025-1056. Online ahead of print. ABSTRACT Monoclonal gammopathies (MGs) represent a diverse group of plasma cell disorders that range from asymptomatic premalignant conditions to aggressive malignancies such as multiple myeloma (MM). Mass spectrometry (MS) based serum analysis offers a non-invasive, highly sensitive alternative to conventional techniques for … Read more
Clin Chem Lab Med. 2025 Nov 4. doi: 10.1515/cclm-2025-1053. Online ahead of print. ABSTRACT OBJECTIVES: An isotope dilution liquid chromatography-tandem mass spectrometry (ID-LC-MS/MS)-based candidate reference measurement procedure (cRMP) was developed and validated to measure serum and plasma concentrations of the total and free form of valproic acid. METHODS: Quantitative nuclear magnetic resonance spectroscopic methodology was … Read more
Clin Chem Lab Med. 2025 Nov 3. doi: 10.1515/cclm-2025-0979. Online ahead of print. ABSTRACT OBJECTIVES: Measuring creatinine levels is essential for assessing kidney function. However, traditional venous sampling poses challenges in terms of sample collection, storage, and transportation. Recently, dried blood spot (DBS) analysis has emerged as a potential alternative for measuring creatinine levels, although … Read more
Clin Chem Lab Med. 2025 Oct 31. doi: 10.1515/cclm-2025-0824. Online ahead of print. ABSTRACT OBJECTIVES: MicroRNA-192-5p, a liver-enriched miRNA downregulated in hepatocellular carcinoma (HCC), is a promising biomarker, but its clinical use is limited by technical challenges in detecting low-abundance plasma miRNAs. This study innovatively uses droplet digital PCR (ddPCR) with locked nucleic acid (LNA)-modified … Read more
Clin Chem Lab Med. 2025 Oct 31. doi: 10.1515/cclm-2025-0868. Online ahead of print. ABSTRACT OBJECTIVES: Insulin-like growth factor-1 (IGF-1) is a peptide hormone currently lacking data surrounding its pre-analytical stability. This study aimed to investigate the impact of delaying centrifugation and analysis at different storage temperatures on the in vitro stability of IGF-1. METHODS: The … Read more
Clin Chem Lab Med. 2025 Oct 29. doi: 10.1515/cclm-2025-1234. Online ahead of print. ABSTRACT Accurate interpretation of laboratory data is a critical step in clinical decision-making. This requires the availability of reliable reference data for comparison. Reference data can be derived from various sources, including hospital or laboratory databases, groups of reference individuals, or an … Read more
Clin Chem Lab Med. 2025 Oct 29. doi: 10.1515/cclm-2025-0846. Online ahead of print. ABSTRACT OBJECTIVES: DNA methylation in short homeobox gene 2 (SHOX2) and RAS association domain family protein 1 (RASSF1A) shows significant auxiliary diagnostic value for early-stage lung cancer. However, the detection accuracy is frequently compromised because of the complexity of the analytical procedures. … Read more
Clin Chem Lab Med. 2025 Oct 29. doi: 10.1515/cclm-2025-0564. Online ahead of print. ABSTRACT OBJECTIVES: To develop and validate a machine-learning model based on routinely available biochemical and hematological parameters for detecting wrong blood in tube (WBIT) errors in hospitalized patients. METHODS: A retrospective multicenter study including one internal cohort (IC) and two external validation … Read more
