American Journal of Clinical Nutrition, Vol 35, 1360-1367, Copyright © 1982 by The American Society for Clinical Nutrition, Inc

ORIGINAL RESEARCH COMMUNICATIONS

Cholesterol excretion studies in familial hypercholesterolemic children and their normolipidemic siblings

JH Zavoral, DC Laine, LK Bale, DL Wellik, RD Ellefson, K Kuba, W Krivit and BA Kottke

Twenty children ages 3 to 17 yr, eight with normal lipids and 12 with familial hypercholesterolemia were studied on a metabolic unit for 14 days to evaluate fecal bile acid and fecal neutral sterol excretion. The diet contained a moderately low cholesterol content, 180 to 200 mg/day. Stools were collected in three separate, 3-day pools. Fecal bile acids and fecal neutral sterols were measured using two stool markers and thin-layer, and gas-liquid chromatography techniques. Fecal neutral sterol and fecal bile acid excretion were the same for normal and familial hypercholesterolemic children on a mg/kg basis. Fecal neutral sterols in familial hypercholesterolemic children decreased with age, p less than 0.001; fecal bile acid excretion also appeared to decrease with age, but less significantly, p less than 0.07. Although the familial hypercholesterolemic children have significantly increased plasma and potentially elevated tissue or total body cholesterol, the excretion of fecal bile acids and fecal neutral sterols did not differ between familial hypercholesterolemic and normal children.

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