Linked Life Data

2904398

Source:http://linkedlifedata.com/resource/pubmed/id/2904398

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
1989-1-13
pubmed:abstractText
The purpose of this study was to further document the role of locally released norepinephrine (NE) in the control of metabolic and endocrine responses to exercise in rats. Post-ganglionic blockade with bretylium (20 mg.kg-1, i.v.) reduced NE release from sympathetic nerve endings and triggered a compensatory increase in epinephrine (E) release from the adrenal medulla, as reflected by plasma NE and E concentrations at rest and exercise (E/NE ratio = 2.92 +/- 0.53 and 2.48 +/- 0.51 vs 0.62 +/- 0.15 and 1.48 +/- 0.18 in control rats; mean +/- SE). Following bretylium administration a reduction in running time to exhaustion (28 m.min-1, 8% slope: 33 +/- 2 min vs 74 +/- 10 min) was associated with 1) a faster decrease in blood glucose concentration (3.58 +/- 0.80 mM vs 8.09 +/- 0.38 mM in control rats exercised for 33 min); and 2) an increased glycogen store utilization in fast-twitch muscles (superficial vastus lateralis and gastrocnemius lateralis). Glycogen utilization was not modified in soleus muscle and in the liver. Taken together these results suggest that post-ganglionic blockade increased carbohydrate store and peripheral blood glucose utilization. This could reflect an impairment in fat mobilization and utilization which might be secondary to a reduction of NE release in the adipose tissue and/or in the endocrine pancreas.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0018-5043
pubmed:author
pubmed:issnType
Print
pubmed:volume
20
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
546-50
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Sympatho-endocrine and metabolic responses to exercise under post-ganglionic blockade in rats.
pubmed:affiliation
Département d'éducation physique, Université de Montréal, Canada.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't