Clinical Chemistry and Laboratory Medicine

Machine learning-based integration of antiphospholipid antibodies for predicting pregnancy outcomes in patients with recurrent spontaneous abortion: a multicenter prospective studyXinli Jiangon March 1, 2026 at 11:00 am

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Clin Chem Lab Med. 2026 Mar 2. doi: 10.1515/cclm-2026-0088. Online ahead of print. ABSTRACT OBJECTIVES: Antiphospholipid antibodies (aPLs) are closely associated with recurrent spontaneous abortion (RSA) and adverse pregnancy outcomes (POs). Non-criteria aPLs may aid in diagnosing seronegative aPL-related RSA, but their limited performance often leads to missed or delayed diagnosis. This study aimed to … Read more

Urinary aldosterone and tetrahydroaldosterone by LC-MS/MS with enzymatic hydrolysis: validation and age-stratified reference intervalsIrene Wijbenga-van der Kooion March 1, 2026 at 11:00 am

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Clin Chem Lab Med. 2026 Mar 2. doi: 10.1515/cclm-2025-1679. Online ahead of print. ABSTRACT OBJECTIVES: Primary aldosteronism (PA) is a common cause of secondary hypertension. To address the specificity limits of immunoassays, we developed and validated an LC-MS/MS method for urinary aldosterone and tetrahydroaldosterone and established method-matched reference intervals for excretion in 24 h urine. … Read more

T-cell receptor beta constant 1 flow cytometry for diagnosing clonality in mature T-cell neoplasms: a systematic review and meta-analysis of diagnostic accuracyPablo Adrian Biaggionion February 19, 2026 at 11:00 am

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Clin Chem Lab Med. 2026 Feb 20. doi: 10.1515/cclm-2025-1376. Online ahead of print. ABSTRACT INTRODUCTION: Accurate assessment of T-cell clonality is key for diagnosing mature T-cell neoplasms. TRBC1-based flow cytometry provides a rapid, robust, and cost-efficient approach. This systematic review and meta-analysis assessed the diagnostic accuracy of TRBC1 flow cytometry (TRBC1-FC) for detecting T-cell clonality … Read more

Stability of different biochemical parameters in pooled left-over sera stored for 14 days after pooling either at room temperature or at 2-10 °CMaja Zabelon February 18, 2026 at 11:00 am

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Clin Chem Lab Med. 2026 Feb 5. doi: 10.1515/cclm-2025-1693. Online ahead of print. ABSTRACT OBJECTIVES: This stability study aimed to evaluate the stability of 48 biochemical analytes in pooled serum samples derived from leftover sera over 14 days at room temperature (RT) and at 2-10 °C, and to assess the consistency of storage effects across … Read more

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