Linked Life Data

1292887

Source:http://linkedlifedata.com/resource/pubmed/id/1292887

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1993-4-8
pubmed:abstractText
The effects of sepsis on the ATP-dependent Ca2+ transport in rat liver plasma membranes were investigated. Sepsis was induced by cecal ligation and puncture (CLP). Control rats were sham-operated. The results show that the ATP-dependent Ca2+ transport by liver plasma membranes was not affected during early sepsis (9 hr after CLP) but was decreased by 30-50% (P < 0.05) during late sepsis (18 hr after CLP). Kinetic analysis of the data indicates that during late sepsis, the Vmax values for ATP and for Ca2+ were decreased by 38.5% (P < 0.05) and 41.8% (P < 0.05), respectively, while the Km values for ATP and Ca2+ remained unchanged. Mg2+ stimulated ATP-dependent Ca2+ transport. The Mg(2+)-stimulated activity was unaffected during early sepsis but was decreased by 34-63% (P < 0.05) during late sepsis. These data demonstrate that ATP-dependent Ca2+ transport in rat liver plasma membranes was impaired during late sepsis and that the impairment is associated with a mechanism not affecting the affinity of the Ca2+ transporter for ATP and Ca2+. Since plasma membrane ATP-dependent Ca2+ transport plays an important role in the regulation of intracellular Ca2+ homeostasis in hepatocytes, an impairment in the ATP-dependent Ca2+ transport by liver plasma membranes during late sepsis may have a pathophysiological significance in contributing to the development of altered hepatic metabolism during septic shock.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0092-6213
pubmed:author
pubmed:issnType
Print
pubmed:volume
38
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
238-44
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Calcium transport by rat liver plasma membranes during sepsis.
pubmed:affiliation
Department of Surgery and Physiology, Chang Gung Medical College, Taiwan, Republic of China.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't