Dynamics of non-specific esterase during fat resorption in the jejunum of the house mouse, Mus musculus

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Abstract
The dynamics of non-specific esterase in the upper duodenum of the house mouse was studied electron microscopically at various intervals following a fat meal. Enterocytic esterase became associated with lipid droplets during fat resorption and formation of primary chylomicrons. Esterase activity remained associated with the primary chylomicrons throughout the process of extrusion into the extracellular space at the lateral interdigitations, and during subsequent transport into the lymph vessels. It is suggested that certain isozymes of non-specific esterase participate in lipid transport.

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