The substructure of the suprachiasmatic nucleus: Similarities between nocturnal and diurnal spiny mice.

Brain, Behavior and Evolution
Rotem CohenL Smale

Abstract

Evolutionary transitions between nocturnal and diurnal patterns of adaptation to the day-night cycle must have involved fundamental changes in the neural mechanisms that coordinate the daily patterning of activity, but little is known about how these mechanisms differ. One reason is that information on these systems in very closely related diurnal and nocturnal species is lacking. In this study, we characterize the suprachiasmatic nucleus (SCN), the primary brain structure involved in the generation and coordination of circadian rhythms, in two members of the genus Acomys with very different activity patterns, Acomys russatus (the golden spiny mouse, diurnal) and Acomys cahirinus (the common spiny mouse, nocturnal). Immunohistochemical techniques were used to label cell bodies containing vasoactive intestinal polypeptide (VIP), vasopressin (VP), gastrin-releasing peptide (GRP) and calbindin (CalB) in the SCN, as well as two sets of inputs to it, those containing serotonin (5-HT) and neuropeptide Y (NPY), respectively. All were present in the SCN of both species and no differences between them were seen. On the basis of neuronal phenotype, the SCN was organized into three basic regions that contained VIP-immunoreactive (-ir), Ca...Continue Reading

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Citations

Dec 20, 2013·Journal of Neural Transmission·Tal Ashkenazy-FrolingerNoga Kronfeld-Schor
Sep 17, 2013·PLoS Computational Biology·A J K PhillipsE B Klerman
Aug 30, 2011·Neuropharmacology·Noga Kronfeld-Schor, Haim Einat
Aug 5, 2011·Journal of the Neurological Sciences·Ana Caminero, Manuel Bartolomé
Aug 9, 2016·The Proceedings of the Nutrition Society·Ruth I VersteegSusanne E la Fleur
Mar 29, 2014·Endocrine Reviews·Laura K Fonken, Randy J Nelson
Mar 29, 2018·Science·Arthur Millius, Hiroki Ueda
Jul 30, 2019·Molecular Systems Biology·Dae Wook KimJae Kyoung Kim
Sep 23, 2016·Drug Development Research·Carmel BiluNoga Kronfeld-Schor

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