Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1977-6-30
pubmed:abstractText
The active sugar and amino acid transport in the small intestine of the American leopard frog (Rana pipiens) and a species of European frog (Rana esculenta) decreases during the winter months. Parallel with this the (Na+, K+)-stimulated ("pump") ATPase activity is markedly depressed. No seasonal changes are observed in the intestine of the tropical bullfrog (Rana catesbeiana). It is assumed that the low pump-ATPase activity is caused by the hibernation of the frogs living in moderate or subtropical areas and is connected to a biological clock. The decreased active transport of non-electrolytes appears to be a consequence of the change of the ATPase activity.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0006-3002
pubmed:author
pubmed:issnType
Print
pubmed:day
2
pubmed:volume
466
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
521-5
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1977
pubmed:articleTitle
Seasonal variation in the active transporting ability and in the membrane ATPase activity of the frog intestinal epithelium.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.