Linked Life Data

7743336

Source:http://linkedlifedata.com/resource/pubmed/id/7743336

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1995-6-15
pubmed:abstractText
Septic shock is characterized by surges of tumor necrosis factor-alpha (TNF-alpha) along with myocardial dysfunction and systemic hypotension. TNF-alpha promotes the release of immunoreactive endothelin (ET). Because TNF-alpha is elevated in septic shock, we hypothesized that elevated levels of endothelin can contribute to cardiac dysfunction and hypotension. We infused live Pseudomonas aeruginosa into anesthetized, hemodynamically monitored young swine and measured ET and TNF-alpha. Septic swine developed systemic arterial hypotension and had significantly elevated TNF-alpha (4.15 +/- .41 U/ml at 1 h versus .40 +/- .13 U/ml at time zero) compared to control animals. ET levels were significantly elevated at 4 h (52.38 +/- 12.88 pg/ml vs. 10.45 +/- 1.82 pg/ml at time zero) and correlated negatively with the decline in cardiac output. We then passively immunized swine using anti TNF-alpha prior to the induction of sepsis to examine if TNF played a central role in the release ET. The anti TNF-alpha effectively removed circulating TNF-alpha bioactivity in septic animals. Anti-TNF-alpha-treated animals did not develop significant systemic arterial hypotension and had significant attenuation in endothelin (19.01 +/- 4.18 pg/ml at 4 h compared to 52.38 +/- 12.88 pg/ml in septic animals at 4 h) which correlated with preservation of cardiac output. TNF-alpha may cause cardiac dysfunction in sepsis syndrome through increased release of ET.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
1073-2322
pubmed:author
pubmed:issnType
Print
pubmed:volume
1
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
343-6
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Release of endothelin in relation to tumor necrosis factor-alpha in porcine Pseudomonas aeruginosa-induced septic shock.
pubmed:affiliation
Department of Internal Medicine, Medical College of Virginia-Virginia Commonwealth University, Richmond 23298, USA.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't