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Tonsillectomy with steroid pulse therapy (SPT) has been established as an effective treatment for immunoglobulin A nephropathy (IgAN) in Japan. However, the underlying mechanisms supporting tonsillectomy remain unclear. This study assessed palatine tonsils from 77 patients with IgAN, including 14 and 63 who received SPT before and after tonsillectomy, respectively. Tonsils from 21 patients with chronic tonsillitis were analyzed as controls. Specific tonsillar lesions were confirmed in patients with IgAN, correlating with active or chronic renal glomerular lesions and SPT. T-nodule and involution of lymphoepithelial symbiosis scores in tonsils correlated with the incidence of active crescents and segmental sclerosis in the glomeruli, respectively. The study revealed an essential role of the tonsil-glomerular axis in early active and late chronic phases. Moreover, the SPT-preceding group demonstrated no changes in the T-nodule score, which correlated with active crescent formation, but exhibited a considerable shrinkage of lymphatic follicles that produced aberrant IgA1. The study underscores the involvement of innate and cellular immunity in IgAN and advocates for tonsillectomy as a necessary treatment alongside SPT for IgAN, based on a stepwise process.
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http://dx.doi.org/10.3390/ijms25105298 | DOI Listing |
Ren Fail
December 2025
Department of Nephrology, National Clinical Key Specialty Construction Program (2023); Institute of Nephrology; Guangdong Provincial Key Laboratory of Autophagy and Major Chronic Non-communicable Diseases; Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Affil
Sodium-glucose cotransporter 2 inhibitors reduced proteinuria in patients with IgA nephropathy; however, their efficacy in patients at high risk of progression receiving immunosuppressive agents and renin angiotensin-aldosterone system inhibitors remains unclear. After 3 months of low-dose steroid alone or combined with mycophenolate mofetil, as well as renin angiotensin-aldosterone system inhibitors treatment, 105 biopsy-proven IgA nephropathy patients with proteinuria greater than 0.5 g/d were included in this study.
View Article and Find Full Text PDFIndian J Endocrinol Metab
August 2025
Department of Endocrinology and Metabolism, All India Institute of Medical Sciences, New Delhi, India.
Introduction: Tumour-induced osteomalacia (TIO) is rare. At our referral centre, we see a substantial number of TIO. Therefore, we planned to study their profile and treatment outcomes to provide insight in management.
View Article and Find Full Text PDFBMJ Case Rep
September 2025
Department of Nephrology, Christian Medical College, Vellore, Tamil Nadu, India
Renal involvement in Takayasu arteritis (TA) has been reported, but glomerular lesions causing nephrotic syndrome (NS) are rare. This is a case report of TA presenting with NS due to secondary amyloidosis.A woman in her late 40s was diagnosed as TA at the age of 15 years presented with nephrotic range proteinuria.
View Article and Find Full Text PDFJ Dev Orig Health Dis
September 2025
Graduate Program in Health Science, Western São Paulo University (UNOESTE), Presidente Prudente, SP, Brazil.
The developmental origins of health and disease hypothesis suggests that environmental exposures during critical developmental windows increase the risk of disease later in life. Among these, endocrine disruptors (EDs) are particularly concerning due to their ubiquitous presence. The kidneys are highly susceptible to EDs toxicity during the perinatal period; however, long-term effects of ED mixtures on renal structure in aging remain unclear.
View Article and Find Full Text PDFSci Rep
August 2025
Department of Nephrology & Rheumatology, Kunming Children's Hospital, Kunming Medical University, Kunming, Yunnan, 650228, China.
Alport syndrome is a hereditary glomerular disease driven by pathogenic variants in COL4A3-COL4A5 that compromise the α3-α4-α5 type IV collagen scaffold, manifesting as persistent hematuria, proteinuria, and ultimately end-stage renal disease. Its pronounced phenotypic variability, low sensitivity of renal biopsy, and limited response to ACE inhibitors complicate accurate diagnosis and therapy. In a cohort of 40 pedigrees from southwest China, we discovered 21 novel COL4A3-COL4A5 mutations.
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