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Challenges in the diagnosis and follow-up of Cushing's syndrome: Evaluating LC-MS/MS as a confirmation method for urinary free cortisol analyses.
Clin Chim Acta
January 2025
Fundación Instituto de Investigación Sanitaria Islas Baleares (IdISBa), Hospital Universitario Son Espases, Carretera de Valldemossa, 79, 07010, Palma, Spain.
24-h urinary free cortisol (UFC) measurements are fundamental in the diagnosis and follow-up of Cushinǵs syndrome (CS) and immunoassays (IA) are the most widely used tests for its quantification in clinical laboratory practice. However, their suitability has been questioned mainly due to their limitations concerning analytical specificity. The aim of this research project was to evaluate a novel algorithm for CS diagnosis and follow-up in the clinical laboratory, based on the combination of IA tests with liquid chromatography-tandem mass spectrometry (LC-MS/MS) for UFC quantification.
View Article and Find Full Text PDFPhototoxic reaction to oral terbinafine due to Tinea capitis in a child.
Acta Dermatovenerol Croat
November 2024
Prof. Ana Bakija-Konsuo, MD, PhD, Clinic for Dermatovenerology CUTIS, Vukovarska 22, Dubrovnik, Croatia;
We report the case of an 18-month-old boy who developed a phototoxic skin reaction to terbinafine on his scalp, ears, and face in the form of disseminated erythematous plaques, which resembled subacute lupus erythematosus (SCLE) in their clinical presentation. Skin changes appeared a short time after the boy was exposed to sunlight during the period of time when he was treated with oral terbinafine due to Microsporum canis fungal scalp infection. Tinea capitis is a common dermatophyte infection primarily affecting prepubertal children (1).
View Article and Find Full Text PDFA Challenging Case of IgG4-Related Kidney Disease Accompanied With Positive Serologic Tests of Lupus Erythematosus.
Nephrology (Carlton)
January 2025
Division of Nephrology, Department of Internal Medicine, Faculty of Medicine, Thammasat University, Pathumthani, Thailand.
The case report presents a male patient in his mid-60s with a history of hypertension, benign prostatic hyperplasia and chronic kidney disease (CKD). He presented with gradually increasing serum creatinine levels and hyperglobulinemia, leading to suspicion of multiple myeloma. However, subsequent testing revealed features consistent with systemic lupus erythematosus (SLE) and IgG4-related kidney disease (IgG4-RKD).
View Article and Find Full Text PDFEffect of Eight Months of Swimming on Bone Quality of Different Anatomical Regions: A Study on Wistar Rat Models.
Calcif Tissue Int
January 2025
Research Centre in Physical Activity, Health and Leisure (CIAFEL), Faculty of Sport, University of Porto, (FADEUP), Rua Dr. Plácido Costa 91, 4200-450, Porto, Portugal.
Swimming is a popular sport with several health benefits, but its effects on bone quality are controversial possibly due to distinct effects on different anatomical regions. Our aim was to investigate the effect of 8-month swimming on bone growth, mass, geometry, trabecular microarchitecture and osteocyte density of the lumbar vertebrae, femur and tibia of male rats. Wistar rat models were assigned to either a swimming (n = 10; 2h/d, 5 d/week) or a physically active control group (n = 10) for 8 months, after which they were sacrificed and their lumbar vertebrae, femur and tibia assessed for bone mass, cortical geometry, trabecular microarchitecture and osteocyte density through µ-CT and histology.
View Article and Find Full Text PDFEvolution of autoimmune diagnostics over the past 10 years: lessons learned from the UK NEQAS external quality assessment EQA programs.
Clin Chem Lab Med
January 2025
Laboratory of Clinical Pathology, Azienda Sanitaria Universitaria Integrata, Udine, Italy.
Objectives: External quality assessment (EQA) programs play a pivotal role in harmonizing laboratory practices, offering users a benchmark system to evaluate their own performance and identify areas requiring improvement. The objective of this study was to go through and analyze the UK NEQAS "Immunology, Immunochemistry and Allergy" EQA reports between 2012 and 2021 to assess the overall level of harmonization in autoimmune diagnostics and identify areas requiring improvement for future actions.
Methods: The EQA programs reviewed included anti-nuclear (ANA), anti-dsDNA, anti-centromere, anti-extractable nuclear antigen (ENA), anti-phospholipids, anti-neutrophil cytoplasm (ANCA), anti-proteinase 3 (PR3), anti-myeloperoxidase (MPO), anti-glomerular basement membrane (GBM), rheumatoid factor (RF), anti-citrullinated protein antibodies (ACPA), mitochondrial (AMA), liver-kidney-microsomal (LKM), smooth muscle (ASMA), APCA, and celiac disease antibodies.
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