permselectivity

permselectivity

/perm·se·lec·tiv·i·ty/ (perm″sĕ-lek-tiv´ĭ-te) restriction of permeation of macromolecules across a glomerular capillary wall on the basis of molecular size, charge, and physical configuration.

permselectivity

(pĕrm″sĕ-lek-tiv′ĭt-ē) [ perm(eability) + selectivity]
Any limitation of the permeability of a filter, e.g., the renal glomerulus, to the passage of macromolecules.
References in periodicals archive ?
Although MEA instability problem can be compensated by continuous supply of fresh carrier, however DEA membrane presents better permselectivity and stability, simultaneously.
Because of the high polymer chain flexibility, good thermal stability, flame resistance, weatherability, and good oxygen and nitrogen permselectivity associated with polydimethylsiloxane (PDMS), PC-PDMS multiblock copolymers have been of interest.
Childhood nephrotic syndrome (NS) (3) is associated with an increase in the permeability across the glomerular filtration barrier due to processes that affect the dynamics and permselectivity of the glomerular filtration barrier.
Amelioration of renal injury resulting in proteinuria in diabetes is reportedly associated with modulating the loss of glomerular permselectivity (Narita et al.
The Role of Packaging Film Permselectivity in Modified Atmosphere Packaging, Journal Agric.
The effects of the permselectivity of the membrane can be seen in that the largest decrease in [Ca] was observed with the cation-permselective membrane (Fig.
5) made use of this fact in order to separate nitrogen and oxygen and achieved a permselectivity of 1.
The elevated glomerular permselectivity to macromolecules and other tubular adaptive changes in exercisers are reported to be transient and decline rapidly after exercise and their aetiology remains unclear (Poortmans, 1984; Poortmans and Vancalck, 1978; Poortmans and Vanderstraeten, 1994).
Because of very high permselectivity of facilitated transport membrane in comparison to conventional polymeric membranes on one hand and relatively very low energy consumption with respect to other conventional processes on the other hand, facilitated transport membranes have attracted the attention of many industries and researchers (Schultz et al.
v] and N are generally reduced, and it has been hypothesized that these morphological changes may relate to the loss of glomerular permselectivity in diabetic nephropathy (DN).
A macrovoid layer provides mechanical strength while either one or two skin layers determine permselectivity (28).
The unique permselectivity of NEXAR membranes allows for a flow of moisture in one direction while blocking other substances such as potentially harmful chemicals.