Table of permselectivity for different substances

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

Substance Approximate molecular mass (g/mol)[1] Effective molecular radius (nm)[1] conc. in ultrafiltrate /
conc. in blood plasma[1]
sodium 23 0.1 1.0
potassium 39 0.14 1.0
chloride 35.5 0.18 1.0
water 18 0.15 1.0
urea 60 0.16 1.0
glucose 180 0.33 1.0
sucrose 342 0.44 1.0
polyethylene glycol 1,000 0.70 1.0
inulin 5,200 1.48 0.98
lysozyme 14,600 1.90 0.8
myoglobin 16,900 1.88 0.75
lactoglobulin 36,000 2.16 0.4
egg albumin 43,500 2.80 0.22
Bence Jones protein 44,000 2.77 1.0
hemoglobin 68,000 3.25 0.03
serum albumin 69,000 3.55 <0.01

References

  1. ^ a b c Walter F. Boron, Emile L. Boulpaep (2005). Medical Physiology: A Cellular And Molecular Approach. Elsevier/Saunders. ISBN 1-4160-2328-3. Page 761
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