Linked Life Data

7296006

Source:http://linkedlifedata.com/resource/pubmed/id/7296006

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1982-1-9
pubmed:abstractText
To study whether the culture time at which the burst populations mature influences the expression of fetal hemoglobin in bursts, we measured hemoglobin synthesis in cohorts of fully hemoglobinized erythroid bursts maturing sequentially in cultures of adult peripheral blood BFU-Es. In 13 of 15 experiments, a decline in gamma/gamma + beta ratio was noted as the culture time advanced. On the average, erythroid bursts that mature during the third culture week showed lower levels of fetal Hb synthesis compared to bursts that are already mature in the second culture week. The decline of gamma/gamma + beta ratio with culture time was also noted in erythroid bursts composed of immature erythroblasts. The enhanced HbF formation in peripheral blood BFU-E cultures is thus most pronounced among the bursts that become hemoglobinized early, and there is a tendency for normalization of HbF synthesis in bursts that mature in late culture days. These results can be interpreted by several alternatives, including the possibility that the expression of high HbF levels in the early days of adult BFU-E cultures is a reflection of premature commitment to terminal differentiation of progenitors that possess an active HbF program. The present data indicate that the variation of HbF synthesis with culture time should be taken into consideration when the influence of various culture conditions of HbF synthesis is studied in BFU-E cultures.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0006-4971
pubmed:author
pubmed:issnType
Print
pubmed:volume
58
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
969-74
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1981
pubmed:articleTitle
Globin synthesis in erythroid bursts that mature sequentially in culture. I. Studies in cultures of adult peripheral blood BFU-Es.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.