Linked Life Data

949552

Source:http://linkedlifedata.com/resource/pubmed/id/949552

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1976-10-2
pubmed:abstractText
The effects of constant exposure to high concentrations of methotrexate in vivo on the committed stem cell (CFU-C) were studied by in vitro culture of mouse bone marrow. Bone marrow samples were obstained from animals receiving a continuous infusion, and were cultured in a methotrexate-free semisolid gel system. The effects of methotrexate infusion on the pluripotent stem cell population (CFU-S) were studied as well. Constant exposure to 10(-5) M methotrexate produced a rapid decrease in total nucleated cells per femur, reaching 35% of control at 12 hr and remaining at approximately this level throughout 48 hr of drug infusion. A decrease in the number of both CFU-C and CFU-S per femur was observed, which paralleled the drop in nucleated cells during the first 24 hr. However, in contrast to an additional drop in the number of CFU-S, an increase of CFU-C number per femur was observed from 24 to 48 hr. These data indicated a self-limited cell kill of nucleated bone marrow cells, and suggested recruitment of CFU-C from the CFU-S pool between 24 and 48 hr of infusion despite continued methotrexate infusion.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0006-4971
pubmed:author
pubmed:issnType
Print
pubmed:volume
48
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
301-7
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1976
pubmed:articleTitle
Evidence for early recruitment of granulocyte precursors during high-dose methotrexate infusions in mice.
pubmed:publicationType
Journal Article