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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
biochemistry, genetics and molecular biology
Ultrastructure of the kidney in acute interstitial nephritis
Ultrastructural Pathology, Volume 10, No. 1, Year 1986
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Description
Fifteen percutaneous renal biopsies from patients with acute renal failure due to acute interstitial nephritis (AIN), in almost all cases due to drugs, were studied by electron microscopy. Differential counting of interstitial cells showed an average of 69% lymphocytes (small and large) and 11 % macrophages. Plasma cells and eosinophils were comparatively rare. The infiltrate resembled that of acute rejection, suggesting a cellular hypersensitivity reaction. Proximal and distal tubules were severely affected focally. Migration of lymphocytes through the tubular basement membrane of otherwise well-preserved tubules was considered to be the first phase. Other tubules showed extreme thinning of the tubular basement membrane, with still intact cellular walls. Rupture of the tubular basement membrane and necrotic disintegration of tubular epithelial cells are probably late phenomena. The non-necrotic tubules displayed severe reduction of proximal brush border and proximal as well as distal tubular basolateral infoldings. Focal tubular disintegration leading to tubular block and/or backleak as well as decrease of proximal tubular sodium resorption leading to a decreased glomerular filtration (a mechanism probably also acting in ischemic acute renal failure) may all be factors responsible for the acute renal failure in AIN. © 1986 Informa UK Ltd All rights reserved: reproduction in whole or part not permitted.
Authors & Co-Authors
Olsen, T. Steen
Denmark, Aarhus
University Institute of Pathology, Arhus
Egypt, Cairo
Faculty of Medicine
Wassef, N. F.
Denmark, Aarhus
University Institute of Pathology, Arhus
Egypt, Cairo
Faculty of Medicine
Olsen, H. Steen
Denmark, Aarhus
University Institute of Pathology, Arhus
Egypt, Cairo
Faculty of Medicine
Hansen, H. E.
Denmark, Aarhus
University Institute of Pathology, Arhus
Egypt, Cairo
Faculty of Medicine
Statistics
Citations: 30
Authors: 4
Affiliations: 2
Identifiers
Doi:
10.3109/01913128609015558
ISSN:
01913123