Linked Life Data

2760948

Source:http://linkedlifedata.com/resource/pubmed/id/2760948

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
1989-9-20
pubmed:abstractText
The toxic effects of hemolysed RBCs have been studied for more than 100 years, but the specific factors involved have not been identified. This study focused on phosphatidylethanolamine (PE) and phosphatidylserine (PS), two aminophospholipids that normally reside on the cytoplasmic side of the red cell membrane. An in vitro experiment with murine peritoneal exudate macrophages showed that PE and PS: a) stimulated the production of H2O2, complement factor C3a, prostacyclin, and thromboxane at a dose of 5 micrograms/ml; b) produced cell injury, evidenced by release of lipid peroxides, LDH, and by morphologic changes on phase-contrast and electron microscopy at a dose of 50 micrograms/ml; and c) caused cell death in 50-66% of cells at a dose of 100 micrograms/ml. An in vivo experiment showed that PE and PS injected intravenously into various groups of rabbits: a) caused only transient hypotension at a dose of 0.05 mg/kg body weight; b) caused significant hypotension, cardiac arrhythmias, bronchospasm, activation of intravascular coagulation, complement, platelets, and leukocytes with release of histamine, serotonin, and thromboxane at a dose of 0.10 mg/kg; and c) caused cardiac arrest and death at a dose of 0.30 mg/kg. In contrast, the phospholipids of the outer cell membrane (phosphatidylcholine and phosphatidylinositol) caused minimal toxicity in vitro and none in vivo.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0022-5282
pubmed:author
pubmed:issnType
Print
pubmed:volume
29
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1065-75
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
Toxic factors in the red blood cell membrane.
pubmed:affiliation
Department of Surgery, Texas Tech University Health Sciences Center, Lubbock 79430.
pubmed:publicationType
Journal Article, Comparative Study, In Vitro