Rapidly Progressive Glomerulonephritis Associated With IgA Nephropathy and C3 Deposits in a Patient With Chronic Hepatitis B.

Hepatitis B-associated glomerulonephritis (GN) has been recognized for decades. However, only a few cases of IgA nephropathy (IgAN) in a setting of rapidly progressive glomerulonephritis (RPGN) associated with chronic hepatitis B virus (HBV) have been described. Herein, we report the case of a 42-year-old Asian female with a past medical history significant for chronic HBV on entecavir, hypertension, chronic kidney disease, and newly diagnosed breast cancer, who underwent elective bilateral mastectomy and breast augmentation.

Gut microbiome and diet in populations with obesity: Role of the Na+/K+-ATPase transporter signaling in severe COVID-19.

Objective: The triad of obesity, a high-protein diet from animal sources, and disturbed gut microbiota have been linked to poor clinical outcomes in patients with COVID-19. In this report, the effect of oxidative stress resulting from the Na /K -ATPase transporter signaling cascade is explored as a driver of this poor clinical outcome.

Methods: Protein-protein interactions with the SARS-CoV-2 proteome were identified from the interactome data for Na /K -transporting ATPase subunit α-1 (ATP1A1), epidermal growth factor receptor, and ERB-B2 receptor tyrosine kinase 2, using the curated data from the BioGRID Database of Protein Interactions.

Viral Nephropathies, Adding SARS-CoV-2 to the List.

Viral infections in the immunocompetent host can cause both acute and chronic kidney disease either as a direct damage to the infected kidney cells or as a consequence of systemic immune responses that impact kidney function. Since identifying these entities in the 1970s and 80s, major breakthroughs in the understanding of the viral mechanisms have occurred. Viruses have evolved mechanisms to hijack signaling pathways of infected cells to evade antiviral immune responses by the host.