Table of permselectivity for different substances explained

This is a table of permselectivity for different substances in the glomerulus of the kidney in renal filtration.

SubstanceApproximate molecular mass (g/mol)[1] Effective molecular radius (nm)conc. in ultrafiltrate /
conc. in blood plasma
23 0.1 1.0
39 0.14 1.0
35.5 0.18 1.0
18 0.15 1.0
60 0.16 1.0
180 0.33 1.0
342 0.44 1.0
1,000 0.70 1.0
5,200 1.48 0.98
14,600 1.90 0.8
16,900 1.88 0.75
36,000 2.16 0.4
43,500 2.80 0.22
44,000 2.77 1.0
68,000 3.25 0.03
69,000 3.55 <0.01

References

  1. Book: Walter F. Boron, Emile L. Boulpaep . Medical Physiology: A Cellular And Molecular Approach . Elsevier/Saunders . 2005. 1-4160-2328-3 . Page 761