Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1997-5-14
pubmed:abstractText
The study aimed at applying closed segmental intestinal perfusion with a multichannel tube (Loc-I-Gut) for studies of regional small bowel permeability to different-sized polyethylene glycols and to compare jejunal absorption with absorption after oral load in healthy subjects. Intestinal perfusion was performed in 10 healthy volunteers and recovery of (14)C-labeled polyethylene glycol 4000 was used to detect leakage. Absorption of polyethylene glycols 546-942 was measured as urinary recovery after perfusion and oral load, and as disappearance from the lumen during steady-state perfusion. Steady-state conditions were obtained during the second hour of perfusion. Absorption of polyethylene glycols during perfusion was size-selective for molecular weights 546-766, but not for 810-942. After oral load, absorption was size-selective throughout 546-942. Segmental perfusion with Loc-I-Gut may be used to study regional jejunal permeability. Our data support the hypothesis of a dual pore system for absorption of hydrophilic molecules in the human jejunum.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0163-2116
pubmed:author
pubmed:issnType
Print
pubmed:volume
42
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
853-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Absorption profiles for polyethylene glycols after regional jejunal perfusion and oral load in healthy humans.
pubmed:affiliation
Department of Surgery, University Hospital, Linköping, Sweden.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't