title: Species difference in circadian [14C]2-deoxyglucose uptake by suprachiasmatic nuclei.
abstract: Hamsters exhibited a circadian variation in metabolic activity determined by [14C]2-deoxyglucose uptake in the suprachiasmatic nuclei, as has been previously reported for rats. The 13-line ground squirrel, a diurnal rodent, did not show a circadian variation in metabolic activity. The data are consistent with the hypothesis that there is a basic difference in the functional organization of the suprachiasmatic nuclei in nocturnal and diurnal animals.
mesh_terms: D000818:Animals; D001345:Autoradiography; D001693:Biological Transport, Active; D002250:Carbon Radioisotopes; D002940:Circadian Rhythm; D006224:Cricetinae; D003837:Deoxy Sugars / Q000378:metabolism*; D003847:Deoxyglucose / Q000378:metabolism*; D007031:Hypothalamus / Q000378:metabolism*; D008297:Male; D008647:Mesocricetus; D051381:Rats; D011916:Rats, Inbred F344; D012589:Sciuridae; D013045:Species Specificity; D013495:Supraoptic Nucleus / Q000378:metabolism*
chemical_list: D002250:Carbon Radioisotopes; D003837:Deoxy Sugars; D003847:Deoxyglucose