Evidence map›Paper›PMID 40979852›Full record

ArticleClinical nephrology. Case studies2025

Acute kidney injury and nephrotic syndrome caused by a "magic pill".

Yangming Cao, Thao Phan, Patil Armenian, Jonathan E Zuckerman

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Article in Clinical nephrology. Case studies, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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4 authors.

Yangming CaoDivision of Nephrology, Department of Internal Medicine, UCSF Fresno.
Thao PhanDepartment of Internal Medicine, Clovis Community Medical Center, Clovis.
Patil ArmenianDepartment of Emergency Medicine, UCSF Fresno, Fresno, CA, and.
Jonathan E ZuckermanDepartment of Pathology and Laboratory Medicine, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, CA, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThe sudden onset of nephrotic syndrome (NS) and acute interstitial nephritis (AIN) seems to be an uncommon but distinct nonsteroidal anti-inflammatory drug (NSAID)-related renal syndrome. CASE PRESENTATION: We present such a case in a patient who took a "magic pill" for gout. Renal biopsy revealed minimal change disease (MCD), acute interstitial nephritis (AIN), severe acute tubular injury (ATI), and IgA nephropathy (IgAN). He was treated with an aborted course of high-dose prednisone, with complete resolution of his renal diseases. The pathologic finding of the combination of MCD and AIN raised the possibility of a drug effect. One of the pills was analyzed and found to be primarily composed of diclofenac. Initially, we considered IgAN a bystander, considering primary IgAN is the most common glomerulonephritis worldwide, especially in Asians and Hispanics. However, the complete resolution of urinary findings after discontinuation of the pill followed by a few days' treatment with prednisone, together with no recurrence of the kidney disease over 6 years, made us speculate that IgAN may have also been triggered by diclofenac.

conclusionWe presented a case of AIN, MCD, and IgAN associated with diclofenac masquerading as a "herbal" medicine. The cause was suggested by pathology and confirmed with high-resolution liquid chromatography mass spectrometry testing of the pills. A history of NSAID use should be diligently sought in any patient who presents with NS and AIN. In addition, this is the first report of IgAN possibly induced by NSAID without recurrence after 6 years' follow-up.

Indexed as

acute interstitial nephritisdiclofenacIgA nephropathynephrotic syndromeNSAID

Identifiers

PMID40979852
PMCPMC12444431

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