Permselectivity of the glomerular capillary wall: III. Restricted transport of polyanions
نویسندگان
چکیده
منابع مشابه
Permselectivity of the glomerular capillary wall. Facilitated filtration of circulating polycations.
To examine the electrostatic effects of fixed negative charges on the glomerular capillary wall, polydisperse [(3)H]DEAE dextran, a polycationic form of dextran, was infused into 10 Munich-Wistar rats. Fractional clearances of DEAE ranging in radius from 18 to 44A were determined in these rats, together with direct measurements of the forces and flows governing the glomerular filtration rate of...
متن کاملPermselectivity of the glomerular capillary wall to macromolecules. I. Theoretical considerations.
The transport of macromolecules across the renal glomerular capillary wall has been described theoretically using flux equations based on (a) restricted transport through small pores, and (b) the Kedem-Katchalsky formulation. The various assumptions and limitations inherent in these two approaches are discussed. To examine the coupling between macromolecular solute transport and the determinant...
متن کاملPermselectivity of the glomerular wall examined with iron compound tracer.
Rat kidney endothelial cell morphology was examined after introducing iron colloid particles of positive or negative charge to investigate the relationship between the electric charge and permeation through the glomerular capillary. The kidneys were first perfused with Hanks’ solution through the renal arteries and then with iron colloid particles of positive or negative charge. The iron colloi...
متن کاملinvestigation of the electronic properties of carbon and iii-v nanotubes
boron nitride semiconducting zigzag swcnt, $b_{cb}$$n_{cn}$$c_{1-cb-cn}$, as a potential candidate for making nanoelectronic devices was examined. in contrast to the previous dft calculations, wherein just one boron and nitrogen doping configuration have been considered, here for the average over all possible configurations, density of states (dos) was calculated in terms of boron and nitrogen ...
15 صفحه اولAngiotensin II modulates glomerular capillary permselectivity in rat isolated perfused kidney.
Studies in experimental animals and humans have documented that inhibition of the renin-angiotensin system by angiotensin-converting enzyme inhibitors reduces urinary protein excretion rate and retards the development of renal injury. Here we sought to investigate whether angiotensin II (All) modified the size-selective properties to macromolecules of the glomerular capillary barrier in isolate...
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ژورنال
عنوان ژورنال: Kidney International
سال: 1975
ISSN: 0085-2538
DOI: 10.1038/ki.1975.104