Linked Life Data

7348868

Source:http://linkedlifedata.com/resource/pubmed/id/7348868

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1983-2-14
pubmed:abstractText
Approximately 70% of the late erythroid progenitor cells (E-CFU) which are present in normal bone marrow are killed by exposure to high specific activity tritiated thymidine (3H-TdR) in vitro or to hydroxyurea in vivo, indicating that a high proportion of these cells synthesize DNA. Their cell cycle was further analyzed by sedimentation at unit gravity. The modal sedimentation rate of 7.4 mm/h appeared to correspond to the fraction that is killed by 3H-TdR. Cells sedimenting at 6.0 and 9.5 mm/h were not susceptible to kill by 3H-TdR and correspond to cells in, respectively, G1 and G2/M. Based on a buoyant density of 1.077 g/cm3, the modal diameter of cells in G1 was calculated to be 8.3 micron, in S 9.2 micron and in G2/M 10.5 micron. The E-CFU population appeared to be composed of about 18% G1 cells, about 70% S phase cells and about 12% G2/M cells. The surviving fraction of E-CFU 2 h after intraperitoneal administration of 1 g/kg hydroxyurea was identified as being mainly a synchronous population in early S phase. The data are best explained by a short duration of G1 and G2/M phases.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0250-6793
pubmed:author
pubmed:issnType
Print
pubmed:volume
1
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
5-14
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1981
pubmed:articleTitle
Analysis of the cell cycle of late erythroid progenitor cells by sedimentation at unit gravity.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't