Apolipoprotein A-I synthesis in rat small intestine: regulation by dietary triglyceride and biliary lipid.
Techniques were developed to provide direct quantitation of apolipoprotein A-I (apoA-I) synthesis rates in rat small intestine.Following intralumenal administration of a pulse of [3H]leucine, newly synthesized enterocyte apoA-I was quantitated by specific immunoprecipitation and compared to [3H]leucine incorporation into total trichloroacetic acid-