Results 31 to 40 of about 351,767 (188)

Modulating effect of irisin on the functional state of inhibitory afferent inputs to the suprachiasmatic nucleus from the arcuate nucleus [PDF]

BIO Web of Conferences
In vitro experiments on viable hypothalamic slices of male Wistar rats, the modulating effect of the myokine irisin on the parameters of inhibitory responses of neurons in the suprachiasmatic nucleus to stimulation of the arcuate nucleus was studied.
Inyushkin Alexey, Pavlenko Snezhanna, Isakova Tatiana, Konashenkova Anastasia, Inyushkina Elena   +4 more
doaj   +1 more source

Circadian rhythm mechanism in the suprachiasmatic nucleus and its relation to the olfactory system

Frontiers in Neural Circuits
Animals need sleep, and the suprachiasmatic nucleus, the center of the circadian rhythm, plays an important role in determining the timing of sleep. The main input to the suprachiasmatic nucleus is the retinohypothalamic tract, with additional inputs ...
Yusuke Tsuno, Michihiro Mieda
doaj   +1 more source

Network-level time computations in the suprachiasmatic nucleus. [PDF]

Cell Res
Deciphering neuronal circuit dynamics is critical for understanding how the brain encodes information. In a recent study in Cell Research, Wang et al.
Ness N, Brancaccio M.
europepmc   +2 more sources

The Hypothalamus of the Beaked Whales: The Paraventricular, Supraoptic, and Suprachiasmatic Nuclei

Biology, 2023
The hypothalamus is the body’s control coordinating center. It is responsible for maintaining the body’s homeostasis by directly influencing the autonomic nervous system or managing hormones. Beaked whales are the longest divers among cetaceans and their
Simona Sacchini, Cristiano Bombardi, Manuel Arbelo, Pedro Herráez   +3 more
doaj   +1 more source

Diurnal rhythms in neurexins transcripts and inhibitory/excitatory synapse scaffold proteins in the biological clock [PDF]

, 2012
The neurexin genes (NRXN1/2/3) encode two families (α and β) of highly polymorphic presynaptic proteins that are involved in excitatory/inhibitory synaptic balance.
Hendricks, Michael, Shapiro-Reznik, Mika, Hadas Lerner, Anje Jilg, Jilg Anje, Earnest, David J., Earnest David J., Nava Zisapel, Zisapel, Nava, Lerner Hadas, Jilg, Anje, Mika Shapiro-Reznik, Zisapel Nava, Lerner, Hadas, David J Earnest, Shapiro-Reznik Mika   +15 more
core   +2 more sources

Preservation of light signaling to the suprachiasmatic nucleus in vitamin A-deficient mice [PDF]

, 2001
To investigate the role of retinal-based pigments (opsins) in circadian photoreception in mice, animals mutated in plasma retinol binding protein were placed on a vitamin A-free diet and tested for photic induction of gene expression in the ...
Lai, K., Thompson, C. L., Quadro, L., Van Gelder, R. N., Colantuoni, V., Gottesman, M. E., Sancar, A., Blaner, W. S.   +7 more
core   +1 more source

Circadian rhythmicity and light sensitivity of the zebrafish brain [PDF]

, 2013
Light is important for entraining circadian rhythms, which regulate a wide range of biological processes. Zebrafish have directly light responsive tissues (Whitmore et al 2000) and are thus a useful vertebrate model for circadian rhythmicity and light ...
Moore, HA
core  

Suprachiasmatic nucleus neuropeptide expression in patients with Huntington's Disease

, 2013
To study whether sleep and circadian rhythm disturbances in patients with Huntington's disease (HD) arise from dysfunction of the body's master clock, the hypothalamic suprachiasmatic nucleus. Postmortem cohort study.
van Wamelen, Daniel J., Roos, Raymund A. C., Roos, Raymund A C, Aziz, N. Ahmad, Angeloni, Debora, Fraschini, Franco, van Steenhoven, Robin, Anink, Jasper J., Jockers, Ralf, Swaab, Dick F., Aziz, N Ahmad, Swaab, Dick F, van Wamelen, Daniel J; id_orcid, Anink, Jasper J   +13 more
core   +2 more sources

Identification of the suprachiasmatic nucleus venous portal system in the mammalian brain

Nature Communications, 2021
The first known portal system in the mammalian brain was identified in 1933. Here the authors describe a new portal system between the capillary beds of the Suprachiasmatic Nucleus master clock and a circumventricular organ, enabling humoral signals to ...
Yifan Yao, Alana B’nai Taub, Joseph LeSauter, Rae Silver   +3 more
doaj   +1 more source

Voluntary exercise can strengthen the circadian system in aged mice [PDF]

, 2013
Consistent daily rhythms are important to healthy aging according to studies linking disrupted circadian rhythms with negative health impacts. We studied the effects of age and exercise on baseline circadian rhythms and on the circadian system's ability ...
I. Song, Lall, Gurprit S., Biello, S.M., Harrington, Mary E., S. M. Biello, Song, I., M. E. Harrington, Queenan, H., Harrington, M.E., H. Queenan, Lall, G. S., Biello, S. M., Zimmerman, E., Molyneux, P. C., Molyneux, P.C., T. L. Leise, Leise, T.L., E. Zimmerman, G. S. Lall, P. C. Molyneux, Lall, G.S., Leise, T. L.   +21 more
core   +1 more source