Membranous nephropathy (MN) is the most common cause of nephrotic syndrome in adults. Complement plays an important role in the pathogenesis of MN. COVID-19 infection has been reported to be associated with the occurrence and recurrence of MN. Only few kidney biopsies from COVID-19 patients demonstrate the presence of SARS-CoV-2 in the tissue. The clinical and pathological characteristics and complement system activation of patients with SARS-COV2 in renal tissue are unclear, needing to further study.
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Cheng et al. (2024) studied this question.
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