Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1997-9-8
pubmed:abstractText
To investigate the mechanisms behind the serum cholesterol-lowering effect of oat fiber, we simultaneously measured postprandial lipid responses, serum lathosterol concentrations, and small bowel excretion of fat and sterols in ileostomy subjects given test meals high or low in oat fiber. Six ileostomy subjects (three women and three men) were served an oat-bran test meal (OB; 16.3 g fiber) and a wheat test meal (6.3 g fiber) in random order. After the postprandial 7-h period, a controlled, low-fat, cholesterol-free diet was served and ileostomy effluent was sampled throughout the 24-h period. Bile acid and fat excretion (24 h) increased by 93% and 146%, respectively (P < 0.05), and total and endogenous cholesterol excretion decreased by 14% and 19%, respectively (P < 0.05), after the OB test meal. The change in hepatic cholesterol synthesis was strongly related to the change in bile acid excretion (Spearman r = 0.89, P < 0.02). The postprandial chylomicron lipid concentration tended to be lower after the OB test meal (-43% for cholesterol, P = 0.07) whereas there was no difference in cholesterol absorption measured by isotope in five subjects. The main effect of the viscous oat beta-glucan seems to be related to increased bile acid excretion and subsequent changes in synthesis and endogenous excretion of cholesterol. An additional effect may have been a delay in the micellar lipid solubilization process and a consequent reduction in the secretion of chylomicrons into the circulation.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0002-9165
pubmed:author
pubmed:issnType
Print
pubmed:volume
66
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
357-65
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Postprandial lipemia in relation to sterol and fat excretion in ileostomy subjects given oat-bran and wheat test meals.
pubmed:affiliation
Department of Clinical Nutrition, University of Göteborg, Sweden. agot.lia@medfak.gu.se
pubmed:publicationType
Journal Article, Clinical Trial, Randomized Controlled Trial