4.6 Article

De Novo Focal and Segmental Glomerulosclerosis After COVID-19 in a Patient With a Transplanted Kidney From a Donor With a High-risk APOL1 Variant

Journal

TRANSPLANTATION
Volume 105, Issue 1, Pages 206-211

Publisher

LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/TP.0000000000003432

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This case study reports a renal transplant recipient who developed renal complications, including nephrotic syndrome and acute kidney injury, after contracting non-severe COVID-19. The renal biopsy revealed focal and segmental glomerulosclerosis lesions. The donor had high-risk apolipoprotein L1 gene variants, which may have contributed to the acute glomerular injury observed in the patient.
Background. There is compelling evidence that renal complications in a native kidney are a major concern in patients infected with severe acute respiratory syndrome coronavirus 2, the causal agent of coronavirus disease 2019 (COVID-19). The spectrum of renal lesions observed on renal grafts in this context remains to be determined. Methods. We report the case of a renal transplant recipient with non-severe COVID-19, who subsequently developed nephrotic syndrome associated with acute renal injury. Results. Renal biopsy demonstrated focal and segmental glomerulosclerosis lesions classified as not otherwise specified histological variant. Genotyping for 2 risk alleles of the apolipoprotein L1 gene demonstrated that the donor was homozygous for the G2/G2 genotype. Conclusions. In renal transplant patients receiving kidneys from donors with high-risk apolipoprotein L1 variants, COVID-19 may promote acute glomerular injury in the form of focal and segmental glomerulosclerosis.

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