Results 21 to 30 of about 335,217 (225)

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

Hypomorphic Expression of Pitx3 Disrupts Circadian Clocks and Prevents Metabolic Entrainment of Energy Expenditure

Cell Reports, 2019
Summary: Daily adaptation of metabolic activity to light-dark cycles to maintain homeostasis is controlled by hypothalamic nuclei receiving information from the retina and from nutritional inputs that vary according to feeding cycles.
Almudena del Río-Martín, Iara Pérez-Taboada, Antonio Fernández-Pérez, Rosario Moratalla, Pedro de la Villa, Mario Vallejo   +5 more
doaj   +1 more source

Ablation of microglia does not alter circadian rhythm of locomotor activity

Molecular Brain, 2023
Microglia, as macrophages in the brain, are responsible for immune responses and synaptic remodeling. Although the function of microglia is regulated by circadian rhythms, it is still unclear whether microglia are involved in the generation and light ...
Futaba Matsui, Sho T. Yamaguchi, Riho Kobayashi, Shiho Ito, Sakimi Nagashima, Zhiwen Zhou, Hiroaki Norimoto   +6 more
doaj   +1 more source

Suprachiasmatic nucleus neuropeptide expression in patients with Huntington's Disease [PDF]

, 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

The presence of neuronal-specific nuclear protein (NeuN) in the circadian timing system of the capuchin monkey (Cebus apella)

Sleep Science, 2010
Background and objective: The circadian timing system (CTS) is composed of a group of specialized neuronal structures that establish a temporal organization of physiological and behavioral processes within precise patterns.
Rayane Bartira Silva do Nascimento, Janaína Siqueira Borda, Rovena Clara Galvão Januário Engelberth, Raysa Oliveira de Medeiros, Renata Frazão, Luciana Pinato, André Luiz Bezerra de Pontes, Expedito Silva do Nascimento, Maria Inês Nogueira, Roelf Justino Cruz-Rizzolo, Miriam Stela Maris de Oliveira Costa, Jeferson de Souza Cavalcante   +11 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

A cellular model for human daily behaviour [PDF]

, 2010
All the biochemical, physiological or behavioural processes whose period is about 24 hours possess a circadian rhythm. In mammals circadian rhythms control almost all aspects of human daily behaviour and physiology.
Pagani, Lucia
core   +1 more source

Rhythmic firing patterns in SCN: The role of circuit interactions [PDF]

, 1995
The suprachiasmatic nucleus (SCN) is believed to contain the main generator of circadian rhythmicity in mammals. In order to obtain further functional details of this, electrophysiological extracellular measurements in vitro were made.
Aguilar-Roblero, R., Maini, P. K., Barrio, R. A., Aguilar-Roblero, R, Zhang, L., Zhang, L, Maini, Philip, Maini, PK, Barrio, RA   +8 more
core   +1 more source

In-phasic cytosolic-nuclear Ca2+ rhythms in suprachiasmatic nucleus neurons

Frontiers in Neuroscience, 2023
The suprachiasmatic nucleus (SCN) of the hypothalamus is the master circadian clock in mammals. SCN neurons exhibit circadian Ca2+ rhythms in the cytosol, which is thought to act as a messenger linking the transcriptional/translational feedback loop ...
Sota Hiro, Sota Hiro, Sota Hiro, Kenta Kobayashi, Kenta Kobayashi, Tomomi Nemoto, Tomomi Nemoto, Tomomi Nemoto, Ryosuke Enoki, Ryosuke Enoki, Ryosuke Enoki   +10 more
doaj   +1 more source

The Visually Related Posterior Pretectal Nucleus in the Non-Percomorph Teleost Osteoglossum bicirrhosum Projects to the Hypothalamus [PDF]

, 1991
This study was done to elucidate the ancestral (plesiomorphic) condition for visual pathways to the hypothalamus in teleost fishes. Three patterns of pretectal organization can be discerned morphologically and histochemically in teleosts. Their taxonomic
Wullimann, M., Northcutt, R., Meyer, Dietrich L., Northcutt, R. G., Mario F. Wullimann, Wullimann, Mario F., Dietrich L. Meyer, R. Glenn Northcutt, Meyer, D.   +8 more
core   +1 more source