Relationship between capillary wall structure and "effective" transcapillary osmotic pressure

Michael E. Yablonski; David G Levitt

doi:10.1016/S0026-2862(73)80011-1

Relationship between capillary wall structure and "effective" transcapillary osmotic pressure

Michael E. Yablonski, David G Levitt

Physiology

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3 Scopus citations

Abstract

The colloid osmotic pressure difference across the capillary wall should be determined by the protein concentration difference (ΔC_R) across just the narrow restricted region of the capillary interendothelial cleft and not the concentration difference (ΔC_T) across the whole wall as is usually assumed. During capillary filtration, ΔC_R should not equal ΔC_T and the assumption that the colloid osmotic pressure difference is proportional to ΔC_T will be in error. The theoretical magnitude of this error for an idealized cleft is determined.

Original language	English (US)
Pages (from-to)	97-99
Number of pages	3
Journal	Microvascular Research
Volume	5
Issue number	1
DOIs	https://doi.org/10.1016/S0026-2862(73)80011-1
State	Published - Jan 1973

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title = "Relationship between capillary wall structure and {"}effective{"} transcapillary osmotic pressure",

abstract = "The colloid osmotic pressure difference across the capillary wall should be determined by the protein concentration difference (ΔCR) across just the narrow restricted region of the capillary interendothelial cleft and not the concentration difference (ΔCT) across the whole wall as is usually assumed. During capillary filtration, ΔCR should not equal ΔCT and the assumption that the colloid osmotic pressure difference is proportional to ΔCT will be in error. The theoretical magnitude of this error for an idealized cleft is determined.",

author = "Yablonski, {Michael E.} and Levitt, {David G}",

year = "1973",

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AU - Yablonski, Michael E.

AU - Levitt, David G

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N2 - The colloid osmotic pressure difference across the capillary wall should be determined by the protein concentration difference (ΔCR) across just the narrow restricted region of the capillary interendothelial cleft and not the concentration difference (ΔCT) across the whole wall as is usually assumed. During capillary filtration, ΔCR should not equal ΔCT and the assumption that the colloid osmotic pressure difference is proportional to ΔCT will be in error. The theoretical magnitude of this error for an idealized cleft is determined.

AB - The colloid osmotic pressure difference across the capillary wall should be determined by the protein concentration difference (ΔCR) across just the narrow restricted region of the capillary interendothelial cleft and not the concentration difference (ΔCT) across the whole wall as is usually assumed. During capillary filtration, ΔCR should not equal ΔCT and the assumption that the colloid osmotic pressure difference is proportional to ΔCT will be in error. The theoretical magnitude of this error for an idealized cleft is determined.

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JO - Microvascular Research

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ER -

Relationship between capillary wall structure and "effective" transcapillary osmotic pressure

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