Linked Life Data

2281321

Source:http://linkedlifedata.com/resource/pubmed/id/2281321

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1991-3-14
pubmed:abstractText
The local and generalized Shwartzman reactions are models of thrombohemorrhagic skin necrosis and DIC, respectively. An intravenous preparatory injection of endotoxin followed by an intradermal injection of endotoxin 24 hours later elicits a thrombohemorrhagic lesion only at the site of intradermal injection of endotoxin in the local Shwartzman reaction. Two intravenous injections of endotoxin spaced 24 hours apart induced a systemic generalized Shwartzman reaction characterized by coagulopathy, petechial hemorrhages, microthrombi, and decreased circulating platelets similar to DIC. Of particular interest is the observation that thrombohemorrhagic lesions of the Shwartzman reaction only develop at sites of intradermal injections of endotoxin. Microthrombi composed of platelets and leukocytes only adhere or accumulate in dermal vessels after an intradermal injection of endotoxin. Prior to the endotoxin injection, biopsies of skin show normal vessels without microthrombi or significant inflammation. Since endothelial cells line the small vessels in the dermis, where a Shwartzman reaction appears to be initiated, it is likely that endothelial cells are important for initiating a local Shwartzman reaction. IL-1 and TNF can substitute for the intradermal injection of endotoxin in the local Shwartzman reaction, induce endothelial cells to become thrombogenic, and can induce the expression of cell adhesion molecules on endothelial cells making endothelial cells more sticky for leukocytes. These observations suggest that endothelial cells play a central role in the local Shwartzman reaction and may be important in understanding diseases associated with thrombohemorrhagic skin necrosis.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0094-6176
pubmed:author
pubmed:issnType
Print
pubmed:volume
16
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
326-32
pubmed:dateRevised
2006-3-7
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Shwartzman reaction.
pubmed:affiliation
Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha 68198-3135.
pubmed:publicationType
Journal Article, Review