Cell Tissue Res. 1978 Jul 10;190(3):371-82.

Filtration effect of endothelial fenestrations on chylomicron transport in neonatal rat liver sinusoids.

Abstract

The function of endothelial fenestrations in the control of the passage of chylomicrons from the blood to the liver parenchymal cells was studied ultrastructurally in neonatal rats. Measurement of circulating chylomicrons and endothelial fenestrations as well as chylomicrons in the space of Disse at 2--20 h after the onset of suckling revealed a substantial filtration effect of endothelial fenestrations on chylomicrons larger than 250 nm in diameter. Direct uptake of chylomicrons by parenchymal cells was observed to occur by pinocytosis; Kupffer cells endocytosed only very few chylomicrons, and endothelial cells were inactive in this respect.

PMID:: 567529; [PubMed - indexed for MEDLINE]

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Chylomicrons

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