Publication Date:
1984-02-24
Description:
The suprachiasmatic nucleus has been identified tentatively as a circadian pacemaker. To examine the functional role of peptides found within suprachiasmatic neurons, avian pancreatic polypeptide and vasopressin were microinjected into the suprachiasmatic region. Avian pancreatic polypeptide, but not vasopressin, shifted the phase of the wheelrunning rhythm as a function of the time of its injection within the circadian cycle. Avian pancreatic polypeptide or a similar peptide may be one component of the neurochemical processes underlying entrainment to the light-dark cycle.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Albers, H E -- Ferris, C F -- Leeman, S E -- Goldman, B D -- GM-31199/GM/NIGMS NIH HHS/ -- HD-18022/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1984 Feb 24;223(4638):833-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6546454" target="_blank"〉PubMed〈/a〉
Keywords:
Animals
;
Birds
;
Cerebral Ventricles/drug effects
;
*Circadian Rhythm
;
Cricetinae
;
Motor Activity/drug effects
;
Nerve Tissue Proteins/pharmacology
;
Neuropeptide Y
;
Pancreatic Polypeptide/*pharmacology
;
Species Specificity
;
Suprachiasmatic Nucleus/*drug effects
;
Vasopressins/pharmacology
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
