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Renal amyloidosis and schistosomiasis
Summary
Schistosomiasis can cause amyloidosis in the kidneys, leading to nephrotic syndrome. Treatment for this condition showed poor response, with no regression of lesions observed in repeat biopsies.
Area of Science:
- Nephrology
- Pathology
- Infectious Diseases
Background:
- Schistosomiasis is a parasitic disease that can affect the kidneys.
- Nephrotic syndrome is a kidney disorder characterized by proteinuria and edema.
- Amyloidosis is a condition caused by abnormal protein deposits in organs.
Purpose of the Study:
- To investigate the occurrence and characteristics of amyloid deposits in nephrotic patients with schistosomiasis.
- To compare schistosomal nephropathy with amyloidosis in this patient group.
- To evaluate the response to anti-schistosomal treatment in cases of schistosomal amyloidosis.
Main Methods:
- Retrospective analysis of 60 renal biopsies from nephrotic subjects with schistosomiasis.
- Histopathological examination to identify amyloid deposits and assess their distribution.
- Clinical data review for presentation, course, and treatment response.
Main Results:
- Amyloid deposits were found in 10 out of 60 cases (16.7%).
- Amyloid distribution was typically segmental, primarily mesangial, and co-located with schistosomal nephropathy lesions.
- Clinical presentation included insidious onset proteinuria and generalized edema with a progressive or intermittent course.
Conclusions:
- Schistosomiasis is associated with renal amyloidosis in nephrotic patients.
- This condition presents distinct clinical and pathological features compared to conventional schistosomal nephropathy.
- Anti-schistosomal treatment demonstrated poor efficacy in resolving schistosomal amyloidosis, with no observed regression of renal lesions.