Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
14
pubmed:dateCreated
1982-8-26
pubmed:abstractText
The possible presence of alpha adrenergic control of lipolysis and cyclic AMP production in brown adipocytes of hamsters was studied in adipocytes isolated from interscapular, subscapular, cervical and axillary regions of normal male hamsters maintained at 25 degrees C. Lipolysis activated by either 3-isobutyl-l-methyl xanthine or isoproterenol was unaffected by the presence of the alpha adrenergic selective agonists clonidine and methoxamine. Similarly, accumulation of cyclic AMP in response to beta-receptor stimulation, alone or in combination with a methyl xanthine, was unaffected by clonidine or methoxamine. In contrast, both lipolysis and cyclic AMP accumulation in brown fat cells were effectively suppressed in the presence of nicotinic acid, prostaglandin E1 or N6-phenylisopropyl adenosine. Accumulation of cyclic AMP in response to the mixed agonist norepinephrine was not influenced when cells were exposed to the alpha adrenergic blocking drugs yohimbine or tolazoline. These observations suggest that alpha-2 adrenergic receptors which are present on hamster white fat cells and control production of cyclic AMP and lipolysis are absent from hamster brown adipocytes. On the other hand, brown fat cells of this species appear to respond to a number of other inhibitory compounds in a manner not markedly different from that of white adipocytes.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0024-3205
pubmed:author
pubmed:issnType
Print
pubmed:day
5
pubmed:volume
30
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1185-92
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1982
pubmed:articleTitle
Apparent absence of alpha-2 adrenergic receptors from hamster brown adipocytes.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't