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  • Title: Renal pathology in diabetes mellitus.
    Author: Osterby R.
    Journal: Curr Opin Nephrol Hypertens; 1993 May; 2(3):475-83. PubMed ID: 7922208.
    Abstract:
    The key change in diabetic glomerulopathy is accumulation of extracellular material. Basement membrane thickening and matrix expansion develop concomitantly. In insulin-dependent diabetic patients persistent microalbuminuria is associated with an early stage of glomerulopathy. Albuminuria in non-insulin-dependent patients does not always reflect glomerulopathy. Renal and glomerular hypertrophy in the early stages of insulin-dependent diabetes mellitus is unlikely to play a dominant role in the development of glomerulopathy. Loss of capillary surface, closely associated with loss of glomerular function, is only partly explained by mesangial expansion--glomerular occlusion plays an important role. Possible mechanisms of albuminuria are qualitative changes of the basement membrane, eg, loss of proteoglycans and excess glycosylation; epithelial cell changes; new vessel formation; remodeling of glomerular structures; and impeded function of juxtaglomerular arterioles. The interplay among abnormalities in individual compartments of the diabetic kidney should be explored.
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