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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1998-12-30
pubmed:abstractText
Inflammatory mediators secreted by activated leukocytes play a role in the pathogenesis of atherosclerosis. They may also affect the production of vasodilatory and platelet antiaggregatory factors such as nitric oxide (NO) and prostacyclin (PGI2) from the vascular endothelium. Production of NO and PGI2, the effecs of which are mediated by cyclic 3',5'-guanosine monophosphate (cGMP) and cyclic 3',5'-adenosine monophosphate (cAMP), respectively, is disturbed in atherosclerosis, whereas increased NO levels have been found in acute cerebral ischemia. To investigate leukocyte activation and its possible influence upon endothelial function in cerebral ischemia we measured plasma neutrophil gelatinase-associated lipocalin (NGAL) and soluble tumor necrosis factor receptor protein-1 (sTNFR-1) by ELISA, and intraplatelet cAMP and cGMP by radioimmunoassay in 59 patients with acute ischemic stroke or transient ischemic attack (mean age 71 years, 27 males) and after a 1-year follow-up in 57/59 (97%) patients. NGAL (152 +/- 58 vs. 126 +/- 48 microgram/l), sTNFR-1 (3.50 +/- 2.2 vs. 2.59 +/- 1.31 microgram/l), and cAMP (5.12 +/- 1.71 vs. 4.06 +/- 0.92 pmol/10(9) platelets) were higher (p < 0.001) after follow-up than in acute cerebral ischemia. At follow-up sTNFR-1 and cGMP partially correlated (r = 0.31; p < 0.05), controlling for age and platelet count. In conclusion, plasma NGAL and sTNFR-1 and intraplatelet AMP increase after acute cerebral ischemia, indicating chronic inflammatory activity and endothelial activation. Plasma sTNFR-1 levels are related to intraplatelet cGMP levels.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1015-9770
pubmed:author
pubmed:issnType
Print
pubmed:volume
8
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
310-7
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed-meshheading:9774747-Acute Disease, pubmed-meshheading:9774747-Acute-Phase Proteins, pubmed-meshheading:9774747-Adult, pubmed-meshheading:9774747-Aged, pubmed-meshheading:9774747-Aged, 80 and over, pubmed-meshheading:9774747-Blood Platelets, pubmed-meshheading:9774747-Brain Ischemia, pubmed-meshheading:9774747-Carrier Proteins, pubmed-meshheading:9774747-Cerebrovascular Disorders, pubmed-meshheading:9774747-Cyclic AMP, pubmed-meshheading:9774747-Epoprostenol, pubmed-meshheading:9774747-Female, pubmed-meshheading:9774747-Follow-Up Studies, pubmed-meshheading:9774747-Humans, pubmed-meshheading:9774747-Inflammation Mediators, pubmed-meshheading:9774747-Lipocalins, pubmed-meshheading:9774747-Male, pubmed-meshheading:9774747-Middle Aged, pubmed-meshheading:9774747-Neutrophils, pubmed-meshheading:9774747-Nitric Oxide, pubmed-meshheading:9774747-Oncogene Proteins, pubmed-meshheading:9774747-Proto-Oncogene Proteins, pubmed-meshheading:9774747-Receptors, Tumor Necrosis Factor
pubmed:articleTitle
Increasing levels of leukocyte-derived inflammatory mediators in plasma and cAMP in platelets during follow-up after acute cerebral ischemia.
pubmed:affiliation
Department of Medicine, University of Lund, University Hospital MAS, Malmö, Sweden.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't