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Extended verification of an automated MALDI-TOF mass spectrometry system for high throughput serum M-protein measurementLouis Nevejanon December 2, 2025 at 11:00 am

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Clin Chem Lab Med. 2025 Dec 3. doi: 10.1515/cclm-2025-0894. Online ahead of print. ABSTRACT OBJECTIVES: This study aimed to perform an extended analytical verification of the Immunoglobulin Isotypes (GAM) for the EXENT® Analyzer (EXENT®-GAM) assay, a MALDI-TOF mass spectrometry-based method for detecting and quantifying serum M-proteins in patients with plasma cell dyscrasias, and to compare … Read more

Impact of Clinical Variables on cfDNA Fragmentomic Signatures and Their Potential as Confounders in Cancer Detection

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Clin Chem. 2025 Dec 2:hvaf163. doi: 10.1093/clinchem/hvaf163. Online ahead of print. ABSTRACT BACKGROUND: Circulating cell-free DNA (cfDNA) fragmentomic features, such as fragment size and end motifs, have emerged as promising noninvasive biomarkers for cancer detection. However, the influence of nonmalignant clinical factors on these features remains unclear, potentially confounding liquid biopsy assays. METHODS: We analyzed … Read more

An isotope dilution-liquid chromatography-tandem mass spectrometry-based candidate reference measurement procedure for the quantification of progesterone in human serum and plasmaSara Cheikh Ibrahimon December 1, 2025 at 11:00 am

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Clin Chem Lab Med. 2025 Dec 1. doi: 10.1515/cclm-2025-0514. Online ahead of print. ABSTRACT OBJECTIVES: Progesterone regulates reproductive processes and is used clinically to monitor ovarian function in people experiencing fertility problems. Measuring serum progesterone is challenging as it is highly protein-bound and exists at very low physiological levels. An isotope dilution-liquid chromatography-tandem mass spectrometry-based … Read more

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