Title : Intestinal apolipoprotein A-I and B-48 metabolism: effects of sustained alterations in dietary triglyceride and mucosal cholesterol flux.

Pub. Date : 1987 Apr

PMID : 3108434






4 Functional Relationships(s)
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1 Additional studies were conducted to determine, separately, the effects of perturbations of intestinal mucosal cholesterol flux and hypothyroidism on intestinal apoA-I and apoB-48 metabolism. Cholesterol apolipoprotein B Rattus norvegicus
2 Maneuvers that augmented intestinal cholesterol uptake (particularly hypothyroidism) appeared to suppress intestinal apoB-48 synthesis by over 40%, while Surfomer (AOMA) administration reduced cholesterol absorption (control, 54 +/- 7%; AOMA, 26 +/- 8%; P less than 0.0005) and resulted in a 24% increase in apoB-48 synthesis by jejunal enterocytes. Cholesterol apolipoprotein B Rattus norvegicus
3 When all the groups were compared, cholesterol absorption (used as an index of mucosal cholesterol uptake) was negatively correlated with jejunal apoB-48 synthesis (r = -0.92, P less than 0.05). Cholesterol apolipoprotein B Rattus norvegicus
4 It is further concluded that an important regulatory effect of mucosal cholesterol flux can be demonstrated on enterocyte apoB-48 synthesis. Cholesterol apolipoprotein B Rattus norvegicus