Document Detail


Hemodynamic effects of glomerular permselectivity.
MedLine Citation:
PMID:  2256473     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Glomerular capillary hemodynamics influence glomerular permselectivity to macromolecules, and alterations in these factors can evoke proteinuria. Changes in hemodynamic patterns can alter protein flux by changing its diffusion- or concentration-driven movement in the presence of a constant membrane barrier. Alternatively, hemodynamic forces may disrupt, transiently or irreversibly, the permeability characteristics of the capillary barrier. Maneuvers that lower glomerular capillary pressure appear capable of reversing at least in part, these latter permeability defects. Angiotensin II, provoked by higher levels of dietary protein intake, may be a particularly important mediator of proteinuria both through its effects on diffusion-mediated protein leakage and its tendency to provoke permeability defects due to heightening of glomerular capillary hydraulic pressures.
Authors:
T H Hostetter; M E Rosenberg
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Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  American journal of nephrology     Volume:  10 Suppl 1     ISSN:  0250-8095     ISO Abbreviation:  Am. J. Nephrol.     Publication Date:  1990  
Date Detail:
Created Date:  1991-01-24     Completed Date:  1991-01-24     Revised Date:  2007-02-14    
Medline Journal Info:
Nlm Unique ID:  8109361     Medline TA:  Am J Nephrol     Country:  SWITZERLAND    
Other Details:
Languages:  eng     Pagination:  24-7     Citation Subset:  IM    
Affiliation:
University of Minnesota, Minneapolis.
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MeSH Terms
Descriptor/Qualifier:
Angiotensin II / physiology
Capillary Permeability / physiology
Dietary Proteins / pharmacology
Glomerular Filtration Rate / physiology
Humans
Kidney Glomerulus / physiology*
Microcirculation / physiology
Proteinuria / etiology*
Chemical
Reg. No./Substance:
0/Dietary Proteins; 11128-99-7/Angiotensin II

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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