Linked Life Data

2668359

Source:http://linkedlifedata.com/resource/pubmed/id/2668359

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1989-9-18
pubmed:abstractText
Net flux of insulin, glucagon, somatotropin, somatomedin-C, and somatostatin across the portal-drained viscera and liver of four lactating Holstein cows was measured at 4 and 8 wk postpartum. Cows were fed ad libitum intake a 60:40 corn silage:concentrate diet and milked at 12-h intervals. Milk yield and DM intake were 32.2 and 15.6 kg/d respectively. Twenty-four consecutive measurements of insulin, glucagon, and somatotropin net flux were obtained at 30-min intervals; 12 hourly measurements were obtained for somatomedin-C and somatostatin. Net flux is venous-arterial concentration difference times blood flow. Net flux of somatomedin-C was not detectable across the portal-drained viscera or liver. Somatotropin was removed by total splanchnic tissues. There was net production of somatostatin across portal-drained viscera, but net flux of somatostatin across liver was not significant. On a net basis, removal of insulin and glucagon by liver accounted for 66% of portal-drained visceral production. Within cows and sampling days, increases in net portal-drained visceral production of insulin and glucagon often were mirrored by increases in net removal by liver. As in other species, the bovine liver is an important regulator of circulating concentrations of insulin and glucagon.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0022-0302
pubmed:author
pubmed:issnType
Print
pubmed:volume
72
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1459-68
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
Net metabolism of hormones by portal-drained viscera and liver of lactating holstein cows.
pubmed:affiliation
Department of Animal Science, University of Maryland, College Park 20742.
pubmed:publicationType
Journal Article