Switch to
Predicate | Object |
---|---|
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-meshheading:9125661-Administration, Oral,
pubmed-meshheading:9125661-Adult,
pubmed-meshheading:9125661-Female,
pubmed-meshheading:9125661-Humans,
pubmed-meshheading:9125661-Intestinal Absorption,
pubmed-meshheading:9125661-Intubation, Gastrointestinal,
pubmed-meshheading:9125661-Jejunum,
pubmed-meshheading:9125661-Male,
pubmed-meshheading:9125661-Molecular Weight,
pubmed-meshheading:9125661-Perfusion,
pubmed-meshheading:9125661-Polyethylene Glycols
|
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
|