Chylomicron margination, lipolysis, and vitamin a uptake in the lactating rat mammary gland: implications for milk retinoid content.


We have reported previously that the concentration of vitamin A (VA) in the milk of lactating rats varies with dietary VA intake, even when plasma retinol concentration is unaffected. In the current study, we investigated the role of lipolysis in the uptake of chylomicron (CM) VA into mammary tissue of lactating rats and estimated the proportion of CM-VA… (More)