Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2010-5-20
pubmed:abstractText
Biliopancreatic diversion with duodenal switch is a combined restrictive and malabsorptive surgical weight loss procedure. Given that this procedure introduces a bypass of the proximal small intestine, it is a suitable model for investigating the influence of the proximal intestine on drug bioavailability. Eight-hour pharmacokinetic profiles were obtained the day before surgery and again after surgery at (median) 6 weeks (range, 4-8 weeks) in 10 morbidly obese patients who were receiving treatment with 20-80 mg atorvastatin each morning. The bioavailability of atorvastatin acid was significantly increased, with a mean twofold higher AUC(0-8) after surgery (range 1.0-4.2, P = 0.001). Time to maximum plasma concentration (C(max)) increased from 1.2 h before surgery to 2.3 h after surgery (P = 0.03). The results emphasize the protective nature of the proximal small intestine against ingested exogenous compounds. Consequently, retitration to the lowest effective dose should be considered after biliopancreatic diversion with duodenal switch in the case of drugs with a high degree of intestinal first pass metabolism and a narrow therapeutic window.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
1532-6535
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
87
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
699-705
pubmed:meshHeading
pubmed-meshheading:20445535-Adult, pubmed-meshheading:20445535-Aged, pubmed-meshheading:20445535-Area Under Curve, pubmed-meshheading:20445535-Biliopancreatic Diversion, pubmed-meshheading:20445535-Biological Availability, pubmed-meshheading:20445535-Dose-Response Relationship, Drug, pubmed-meshheading:20445535-Duodenum, pubmed-meshheading:20445535-Female, pubmed-meshheading:20445535-Follow-Up Studies, pubmed-meshheading:20445535-Heptanoic Acids, pubmed-meshheading:20445535-Humans, pubmed-meshheading:20445535-Hydroxymethylglutaryl-CoA Reductase Inhibitors, pubmed-meshheading:20445535-Intestine, Small, pubmed-meshheading:20445535-Male, pubmed-meshheading:20445535-Middle Aged, pubmed-meshheading:20445535-Obesity, Morbid, pubmed-meshheading:20445535-Prospective Studies, pubmed-meshheading:20445535-Pyrroles
pubmed:year
2010
pubmed:articleTitle
Significant increase in systemic exposure of atorvastatin after biliopancreatic diversion with duodenal switch.
pubmed:affiliation
School of Pharmacy, University of Oslo, Oslo, Norway.
pubmed:publicationType
Journal Article, Clinical Trial