Linked Life Data

3008712

Source:http://linkedlifedata.com/resource/pubmed/id/3008712

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
1986-5-9
pubmed:abstractText
Sarcolemma (SL) Na+/Ca++ exchange, binding of the Ca++ channel antagonist [3H]nitrendipine and sarcoplasmic reticulum (SR) Ca++ uptake were studied in crude membranes from developing chick heart. Energy-linked Ca++ uptake of mitochondria (MT) was measured in tissue homogenates. When reckoned per unit of heart mass Na+/Ca++ exchange increases linearly (20-fold) from embryonic day 4 to postnatal day 10. These changes correlate strongly with developmental variations of (Na+, K+)ATPase activity. The density of high-affinity [3H]nitrendipine receptors increases in parallel, while the specific affinity does not change SR Ca++ uptake rises steadily during embryogenesis and increases steeply (3-fold) at the time of hatching. Hearts of 10-day-old chickens exhibit 50-fold higher SR Ca++ transport activities than those of 4-day-old embryos. Between the latter stage and postnatal day 10 a more than 100-fold increase of MT Ca++ uptake occurs. The results suggest developmental variations in the contribution of single Ca++ transporting systems in cardiac Ca++ control.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0232-766X
pubmed:author
pubmed:issnType
Print
pubmed:volume
45
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
S219-22
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1986
pubmed:articleTitle
Developmental changes of Ca++ transport systems in chick heart.
pubmed:publicationType
Journal Article