Linked Life Data

1140164

Source:http://linkedlifedata.com/resource/pubmed/id/1140164

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1975-10-10
pubmed:abstractText
The effects of norepinephrine in interaction with adrenergic blocking compounds were studied on membrane adenosine triphosphatase (ATPase) activities of human lymphocytes and lymphoblasts. Sodium-potassium ion exchange pump activity was assayed by 86-Rb uptake and ATPase activity of membrane fractions was assayed by ADP and inorganic phosphate generation. The results of these studies indicate that norepinephrine acts by an alpha adrenergic mechanism to enhance membrane sodium-potassium ion exchange pump activity and ATPase activity. The pharmacologic and ionic dissection of the adrenergic sensitivity of ATPase activity indicates that this alpha adrenergic mechanism is related to membrane ATPase activities in addition to that associated with the ion exchange pump. Analysis of fractions obtained by sucrose gradients indicates that the action of norepinephrine is localized in the plasma membrane. Beta adrenergic stimulation was observed to inhibit ATPase activity. The complexity of adrenergic effects on membrane ATPase suggests interactions of hormone modulation of membrane nucleotide cyclases and transport-related ATPase enzymes.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0093-6391
pubmed:author
pubmed:issnType
Print
pubmed:volume
2
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
179-98
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1975
pubmed:articleTitle
Norepinephrine stimulation of lymphocyte ATPase by an alpha adrenergic receptor mechanism.
pubmed:publicationType
Journal Article