Key result
Apobec-1 knockout mice transported significantly less triacylglycerol to lymph than wild-type mice during higher lipid dose infusion due to reduced apo B secretion.
Why the study?
Does the type of apolipoprotein B (B48 vs B100) affect chylomicron formation and lipid absorption in the gut?
Population
apobec-1 knockout mice and wild-type mice
Comparison
Intraduodenal infusion with a lipid emulsion vs Wild-type mice (producing apo B48)
Design
Preclinical
Authors
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Does not support changes to human lipid management; leaves open whether apo B48 preference enhances chylomicron efficiency in clinical atherosclerosis.
Does the type of apolipoprotein B (B48 vs B100) affect chylomicron formation and lipid absorption in the gut?
Apo B48 is the preferred protein for the gut to coat chylomicrons to ensure efficient chylomicron formation and lipid absorption compared to apo B100.
Lo et al. (2007) studied Lipid absorption. Apobec-1 knockout (producing only apo B100) vs. Wild-type mice (producing apo B48) was evaluated on Triacylglycerol (TG) transport to lymph and apo B secretion. Apobec-1 knockout mice transported significantly less triacylglycerol to lymph than wild-type mice during higher lipid dose infusion due to reduced apo B secretion.
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