Table 1.

Parameter values representative of normal rats

ParameterValue
concentration at half-saturation, Km31 μg/ml
albumin reabsorptive capacity, Vmax0.086 ng·s−1·mm−2
albumin concentration in filtrate, C023 μg/ml
microvillar height, h2 μm
fractional open luminal surface area, ε0.67
radius of open inner lumen, R12 μm
tubule length, L10 mm
SNGFR40 nl/min
initial mean axial velocity in tubule, u01.5 mm/s
radial velocity at microvilli tips, vw6.2 × 10−4 mm/s
albumin diffusivity in water, D9.5 × 10−7 cm2/s