NT-proBNP and its correlation to left ventricular ejection fraction and heart failure – The DEMONSTRATE database​Morgan Lundgren, Peter Ridefelt, Maria K Svensson, Emil Hagström, Thomas Cars, Anders Larsson1Department of Medical Sciences, Clinical Chemistry, 59592Uppsala University, Uppsala, Sweden2Department of Medical Sciences, Renal Medicine, 59592Uppsala University, Uppsala, Sweden3Uppsala Clinical Research Centre, Uppsala, Sweden4Department of Medical Sciences, Cardiology, 83048Uppsala University, Uppsala, Sweden5Sence Research AB, Uppsala, Swedenon November 17, 2025 at 5:23 am

Annals of Clinical Biochemistry, Ahead of Print. BackgroundMeasurement of N-terminal pro-B-type natriuretic peptide (NT-proBNP) and left ventricular ejection fraction (LVEF) are used in diagnosing heart failure (HF). The main aim was to explore the correlation between NT-proBNP and LVEF.MethodsPatient …

Predicting poor prognosis risk after endovascular thrombectomy for acute ischemic stroke: combination of TMAO and white matter lesions​Chu Zhou Qi-Yang Yuan Yu-Kun Wang Chong-ke Zhong Yao-Wu Liu Fen-Fang Gao Rong-Rong Liu Wei Li Ruo-Yu Qin Shi-Guang Zhu De-qin Geng a Xuzhou Medical University, Xuzhou, Chinab Department of Epidemiology, School of Public Health, Medical College of Soochow University, Suzhou, Chinac Department of Neurology, Seventh People’s Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, Chinad Department of Neurology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Chinaon April 21, 2026 at 4:56 am

Volume 86, Issue 3, MAY 2026, Page 224-236.

The association between ionized and total magnesium in critically ill patients: a prospective cohort study​Eyrun A. Kristinsdottir Svajunas Statkevicius Martin I. Sigurdsson Fredrik Hansson Marcus E. Broman a Department of Perioperative and Intensive Care, Skåne University Hospital, Lund, Swedenb Faculty of Medicine, Lund University, Lund, Swedenc Department of Anaesthesia and Intensive Care, Perioperative Services at Landspitali, the National University Hospital of Icelandd Faculty of Medicine, University of Iceland, Reykjavik, Icelande Integrative Research Laboratories Sweden AB, Göteborg, Swedenon March 14, 2026 at 2:22 am

Volume 86, Issue 3, MAY 2026, Page 237-244.

Reference intervals for lysosomal glucocerebrosidase activity in the healthy population​Vinu Rajendran Divya T. Nair Prinu Jose Shouvik Basu M. L. Saju Geetha Mandagini Cibin T. Raghavan Syam Krishnan Srinivas Gopala Madhusoodanan Urulangodi a Department of Transfusion Medicine, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, Kerala, Indiab Department of Biochemistry, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, Kerala, Indiac Achutha Menon Centre for Health Science Studies, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, Kerala, Indiad Department of Neurology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Comprehensive Care Centre for Movement Disorders, Thiruvananthapuram, Kerala, Indiaon March 15, 2026 at 4:23 am

Volume 86, Issue 3, MAY 2026, Page 245-252.

Evaluation of analytical equivalence between Ampulab and BD Vacutainer blood collection tubes across clinical chemistry, immunoassay, hematology, and coagulation panels​Imseok Kang Byoung-Sun Mun Jung Yoon Jung Ah Kwon Chae Seung Lim Ha Nui Kim Soo-Young Yoon Department of Laboratory Medicine, Korea University College of Medicine, Seoul, Koreaon May 5, 2026 at 4:05 am

Volume 86, Issue 3, MAY 2026, Page 273-284.

Recommendation on quality assurance of pneumatic transportation systems an opinion paper from the Nordic preanalytical scientific working group​Jonna Pelanti Britta Willman Anna Linko-Parvinen Mads Nybo a Labquality, Helsinki, Finlandb Department of Medical Biosciences, Clinical Chemistry, Umeå University, Umeå, Swedenc Department of Clinical Chemistry, University of Turku, and Tyks Laboratories, Clinical Chemistry, Turku University Hospital, Turku, Finlandd Department of Clinical Biochemistry, Odense University Hospital, Odense, Denmarkon April 16, 2026 at 6:34 am

Volume 86, Issue 3, MAY 2026, Page 293-297.

Measurements of plasma melatonin by rapid LC-MS/MS enables insight into diurnal variation in healthy humans​Jakob Albrethsen Jonas Korsgaard Andreasen Jennifer Anton Henriette P. Sennels Henrik L. Jørgensen Jens Hannibal Ditte Hermann Nicolai J. Wewer Albrechtsen a Department of Clinical Biochemistry, Copenhagen University Hospital – Bispebjerg and Frederiksberg, Copenhagen, Denmarkb Department of Clinical Biochemistry, Copenhagen University Hospital – Hvidovre, Hvidovre, Denmarkc Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmarkon April 20, 2026 at 6:14 am

Volume 86, Issue 3, MAY 2026, Page 306-312.

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