Linked Life Data

639815

Source:http://linkedlifedata.com/resource/pubmed/id/639815

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1978-6-17
pubmed:abstractText
Activities have been determined in subcellular fractions of livers from choline-deficient and normals rats for the enzymes that convert choline and ethanolamine to phosphatidylcholine and phosphatidylethanolamine respectively, that methylate phosphatidylethanolamine to yield phosphatidylcholine, and that oxidize choline to betaine. The activities of ethanolamine kinase, phosphoethanolamine cytidylyltransferase, and CDP-ethanolamine: 1,2-diacylglycerol phosphoethanolaminetransferase are not changed in the livers from choline-deficient rats for at least 18 days. Similarly, the activities of choline kinase and CDP-choline: 1,2-diacylglycerol phosphocholine transferase were unaffected by choline depletion. A decrease of 30-41% was observed, however, in the mitochondrial oxidation of choline to betaine. Also, the activity of the phosphocholine cytidylyltransferase was reduced in the choline-deficient livers to 60% olf the control values. The only observed increase in enzyme activity was a 62% elevation of the phosphatidylethanolamine-S-adenosylmethionine methyltransferase activity after 2 days of choline deficiency. This increased activity was maintained for at least 18 days of choline deprivation. The results suggest a lack of adaptive change in the levels of these phospholipid biosynthetic enzymes as a result of choline deficiency.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0014-2956
pubmed:author
pubmed:issnType
Print
pubmed:volume
85
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
181-7
pubmed:dateRevised
2007-7-23
pubmed:meshHeading
pubmed:year
1978
pubmed:articleTitle
Effect of choline deficiency on the enzymes that synthesize phosphatidylcholine and phosphatidylethanolamine in rat liver.
pubmed:publicationType
Journal Article