As part of an extensive epidemiological survey of chronic hemodialysis patients in Michigan, hepatitis B surface antigen (HBsAg) was identified in the sera of 79 of 701 (11%) patients. Of these patients, 59 were carriers of HBsAg for three or more months. Urine samples were collected from 36 of 39 HBsAg carriers having urinary output. Of these samples, 19 (52%) were positive for HBsAg by radioimmunoassay; this was confirmed by specific antibody neutralization. The HBsAg was not identified in the urine of seven hemodialysis patients who were lacking serum HBsAg or in urine samples from three HBsAg sero-carriers who had normal renal function. Patients undergoing maintenance hemodialysis appear to constitute a large reservoir of HBsAg chronic carriers. This study indicates that a minimum of 50% of persistent HBsAg carriers who are producing urine have detectable HBsAg in single, randomly timed, unconcentrated urine specimen. These data suggest that urine may represent a potential vehicle for transmission in nonparenterally acquired hepatitis B.
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http://dx.doi.org/10.1038/ki.1978.46 | DOI Listing |
J Nephrol
January 2025
Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, Pieve Emanuele, 20072, Milan, Italy.
Background: In an Italian cohort of lupus podocytopathy patients, we aimed to characterize the presenting features, therapy, and outcomes, and explore differences between relapsing and non-relapsing patients.
Methods: We identified 29 patients with lupus podocytopathy from 1994 to 2023 in 11 Italian Nephrology/Rheumatology Units, and divided them into two groups: relapsing and non-relapsing. Given the limited sample size, a p-value ≤ 0.
J Nephrol
January 2025
Department of Nephrology, Beaumont Hospital, Dublin, Ireland.
Background: Autosomal dominant polycystic kidney disease (ADPKD) is caused primarily by pathogenic variants in the PKD1 and PKD2 genes. Although the type of ADPKD variant can influence disease severity, rare, hypomorphic PKD1 variants have also been reported to modify disease severity or cause biallelic ADPKD. This study examines whether rare, additional, potentially protein-altering, non-pathogenic PKD1 variants contribute to ADPKD phenotypic outcomes.
View Article and Find Full Text PDFHeart Fail Rev
January 2025
Centre d'Investigations Cliniques Plurithématique 1433 and INSERM U1116, CHRU Nancy, FCRIN INI-CRCT (Cardiovascular and Renal Clinical Trialists), Institut Lorrain du Coeur Et Des Vaisseaux, CHRU de Nancy, Université de Lorraine, Nancy, France.
Mineralocorticoid receptor antagonists (MRAs) are a cornerstone of guideline-directed medical therapy for heart failure with reduced ejection fraction (HFrEF), offering significant benefits in reducing mortality and hospitalizations. However, their use is often constrained by the risk of hyperkalemia, particularly in patients with chronic kidney disease. Patiromer and sodium zirconium cyclosilicate (SZC), two novel potassium binders, have emerged as highly effective and safe tools for managing hyperkalemia and enabling the optimization of MRA therapy.
View Article and Find Full Text PDFTransplantation
January 2025
Department of Hepatogastroenterology, Edouard Herriot University Hospital, University Lyon-1, Lyon, France.
Background: It remains unclear whether physicians should accept transplantation offers for candidates with a positive SARS-CoV-2 reverse transcription polymerase chain reaction test due to the potential risk of severe infection after initiating immunosuppressive therapy.
Methods: A multicenter observational study was conducted in 19 French solid organ transplantation units. Patients on the waiting list for liver or kidney transplants who had a positive SARS-CoV-2 reverse transcription polymerase chain reaction nasopharyngeal swab at the time of transplantation were recorded.
Clin Toxicol (Phila)
January 2025
Minnesota Regional Poison Center, Minneapolis, MN, USA.
Introduction: Sotalol is a beta-adrenoceptor blocking drug with unique physical and pharmacologic properties. Unlike most beta-adrenoceptor blocking drugs, sotalol is amenable to extracorporeal removal and causes QT interval prolongation and ventricular dysrhythmias. These properties have implications for treating sotalol poisoning.
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