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Overexpression of plasmalemmal vesicle-associated protein-1 in patient with cyanotic nephropathy: a case report
Yusuke Ushio1, So Hirata2, Shun Manabe2
1Department of Nephrology, Tokyo Women'S Medical University, 8-1, Kawada-Cho, Shinjuku-Ku, Tokyo, Japan. ushio.yusuke@twmu.ac.jp.
Insights
This study investigates cyanotic nephropathy (CN) in a patient with congenital heart disease. Findings suggest PV-1 may play a role in endothelial damage, offering new insights into CN pathogenesis.
Area of Science:
- Nephrology
- Cardiology
- Pathophysiology
Background:
- Cyanotic nephropathy (CN) is a recognized complication of cyanotic congenital heart disease (CCHD).
- The precise mechanisms underlying CN pathophysiology require further elucidation.
Background:
Cyanotic nephropathy (CN) is a known complication of cyanotic congenital heart disease (CCHD). However, many aspects of its pathophysiology remain unclear.
Case Presentation:
We report the case of a 29-year-old male with a history of tetralogy of Fallot. Renal biopsy revealed glomerular hypertrophy and focal segmental glomerulosclerosis. Electron microscopy revealed extensive endothelial cell damage. To investigate the etiology of endothelial cell damage, PAL-E staining was conducted, revealing staining along the glomerular capillary wall.
Conclusion:
This is the first report of PAL-E staining in CN, suggesting potential overexpression of PV-1. The association of PV-1 expression with endothelial cell damage indicates its role in the pathogenesis of CN.

