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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
4
|
| pubmed:dateCreated |
1977-11-30
|
| pubmed:abstractText |
Cholestatic jaundice is one complication of nonhepatic gram-negative bacterial infection. The endotoxin of Escherichia coli has been reported to cause cholestasis by inhibiting the bile salt-independent fraction (BSIF) of bile in the perfused rat liver. Accordingly, the effects of lipopolysaccharides (LPS) of E. coli and Salmonella enteritidis on the Na+, K+-adenosinetriphosphatase (ATPase) in canalicular-enriched plasma membranes of rate liver were examined. At 20 microgram/ml, both endotoxins inhibited this enzyme by approximately 40%. Maximal inhibition (70%-80%) occurred at concentrations of greater than or equal to 120 microgram/ml. The LPS of neither organism exerted any effect on the activity of Mg++-ATPase or 5'-nucleotidase in the same preparations. Inhibition by the E. coli LPS appeared to be noncompetitive in nature, and the calculated Ki was 45 microgram/ml. Since the Na+, K+-ATPase may be responsible for the elaboration of BSIF, inhibition of this enzyme could be the underlying mechanism for the endotoxin-induced cholestasis.
|
| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:citationSubset |
AIM
|
| pubmed:chemical | |
| pubmed:status |
MEDLINE
|
| pubmed:month |
Oct
|
| pubmed:issn |
0022-1899
|
| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:volume |
136
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
583-7
|
| pubmed:dateRevised |
2006-11-15
|
| pubmed:meshHeading | |
| pubmed:year |
1977
|
| pubmed:articleTitle |
Inhibition of Na+, K+-adenosinetriphosphatase by endotoxin: a possible mechanism for endotoxin-induced cholestasis.
|
| pubmed:publicationType |
Journal Article
|