PMID- 1877649 OWN - NLM STAT- MEDLINE DCOM- 19910923 LR - 20171213 IS - 0002-9513 (Print) IS - 0002-9513 (Linking) VI - 261 IP - 2 Pt 2 DP - 1991 Aug TI - Pathogenesis of glomerular sclerosis in subtotally nephrectomized analbuminemic rats. PG - F256-64 AB - The Nagase analbuminemic rat (NAR), a mutant of the Sprague-Dawley (SD) strain, exhibits persistent hypercholesterolemia, thrombocytosis, and enhanced platelet aggregation, abnormalities possibly involved in the genesis of glomerular sclerosis (GS). Previous observations suggest that these rats never develop aging GS. We studied the development of GS in NAR after 5/6 nephrectomy (Nx). Fifteen days after Nx, marked glomerular hypertension was observed in NAR, compared with only mild elevations in SD rats. Glomerular hypertrophy was more marked in SD rats than in NAR. Enalapril normalized glomerular volume and partially reversed glomerular hypertension in NAR without altering platelet function or cholesterol levels. Glomerular endothelial injury and intraluminal fibrin deposition were seen only in NAR. Two months after Nx, severe GS and massive glomerular lipid deposition were seen in NAR, whereas only mild glomerular injury occurred in SD rats. Enalapril attenuated GS and prevented lipid deposition in NAR. Glomerular hypertension may be a key factor in the genesis of GS in this model in association with endothelial injury, intracapillary coagulation, and lipid accumulation. FAU - Fujihara, C K AU - Fujihara CK AD - Department of Clinical Medicine, University of Sao Paulo Medical School, Brazil. FAU - Limongi, D M AU - Limongi DM FAU - Falzone, R AU - Falzone R FAU - Graudenz, M S AU - Graudenz MS FAU - Zatz, R AU - Zatz R LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Am J Physiol JT - The American journal of physiology JID - 0370511 RN - 0 (Serum Albumin) SB - IM MH - Animals MH - Arterioles/physiology MH - Glomerular Filtration Rate MH - Hemodynamics MH - Hypertension/physiopathology MH - Kidney Glomerulus/blood supply/*pathology MH - Male MH - Nephrectomy/*methods MH - Nephrons/physiology MH - Rats MH - Rats, Inbred Strains MH - Risk Factors MH - Sclerosis MH - Serum Albumin/*analysis MH - Time Factors MH - Vascular Resistance EDAT- 1991/08/01 00:00 MHDA- 1991/08/01 00:01 CRDT- 1991/08/01 00:00 PHST- 1991/08/01 00:00 [pubmed] PHST- 1991/08/01 00:01 [medline] PHST- 1991/08/01 00:00 [entrez] AID - 10.1152/ajprenal.1991.261.2.F256 [doi] PST - ppublish SO - Am J Physiol. 1991 Aug;261(2 Pt 2):F256-64. doi: 10.1152/ajprenal.1991.261.2.F256.