Results 41 to 50 of about 34,337 (216)

The Melanocortin-4 Receptor Integrates Circadian Light Cues and Metabolism [PDF]

, 2015
The melanocortin system directs diverse physiological functions from coat color to body weight homoeostasis. A commonality among melanocortin-mediated processes is that many animals modulate similar processes on a circannual basis in response to longer ...
Arble, Deanna M., Herman, James P., Holland, Jenna, Morano, Rachel, Ottaway, Nickki, Perez-Tilve, Diego, Pressler, Joshua W., Sandoval, Darleen A., Seeley, Randy J., Sorrell, Joyce, Woods, Stephen C.   +10 more
core   +2 more sources

Stereotaxic Surgery for Suprachiasmatic Nucleus Lesions in Mice

Bio-Protocol, 2017
Site-specific lesions are invaluable methods for investigating the function of brain regions within the central nervous system and can be used to study neural mechanisms of behaviors. Precise stereotaxic surgery is required to lesion small regions of the
Kimiko Shimizu, Yoshitaka Fukada
doaj   +1 more source

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

Rodent models for the analysis of tissue clock function in metabolic rhythms research [PDF]

, 2017
The circadian timing system consists on a distributed network of cellular clocks that together coordinate 24-h rhythms of physiology and behavior. Clock function and metabolism are tightly coupled, from the cellular to the organismal level.
Astiz, Mariana, Leinweber, Brinja, Oster, Henrik, Tsang, Anthony H.   +3 more
core   +2 more sources

Neuronal activity regulates neurotransmitter switching in the adult brain following light-induced stress. [PDF]

, 2018
Neurotransmitter switching in the adult mammalian brain occurs following photoperiod-induced stress, but the mechanism of regulation is unknown. Here, we demonstrate that elevated activity of dopaminergic neurons in the paraventricular nucleus of the ...
Deisseroth, Karl, Leutgeb, Stefan, Li, Hui-Quan, Meng, Da, Spitzer, Nicholas C   +4 more
core   +1 more source

A High‐Throughput Live Imaging Platform to Investigate Circuit‐Dependent Regulation of Circadian Rhythms in Brain Tissue

Advanced Science, EarlyView.
Biological rhythms coordinate physiology, from genes to behavior. Study of circadian rhythms in brain tissue is constrained by limited throughput and spatial and temporal information quality. A new platform for high‐throughput, long‐term multiplexed fluorescent live imaging of circadian rhythms in brain slices is introduced.
Marco Ferrari, Natalie Ness, Julieta Acosta, Marco Brancaccio   +3 more
wiley   +1 more source

FORMATION OF BIOLOGICAL RHYTHMS IN PRENATAL HUMAN ONTOGENESIS

Неонатологія, хірургія та перинатальна медицина, 2019
The formation of biological rhythms in prenatal period is associated with ontogenesis of suprachiasmatic nucleus of the hypothalamus and pineal gland, activity of micro-RNA and clock genes.
V.P. Pishak
doaj   +1 more source

Clock Genes Regulate Ca2+ Signaling and Mitochondrial Bioenergetics to Inhibit Sjögren Disease

Arthritis &Rheumatology, EarlyView.
Objective Although Ca2+ signaling and metabolism have been identified as key determinants for the development of Sjögren disease (SjD), the intricate connection between them and salivary gland physiology remains poorly understood. Methods Fluorescence‐based Ca2+ imaging, RNA sequencing, and mitochondrial activity were used to investigate the effects of
Viktor R. Drel, Manigandan Venkatesan, Rahul S. Jasrotia, Yuyang Sun, Viviane Nascimento da Conceicao, Neelanjan Vishnu, Shankara N. Varadarajan, Venugopal R. Bovilla, Rajender K. Motiani, Shobhan Gaddameedhi, Bibhuti B. Mishra, Muniswamy Madesh, Brij B. Singh   +12 more
wiley   +1 more source

Attention‐Deficit/Hyperactivity Disorder Through a Circadian Lens: When the Brain's Clock Disrupts Attention Regulation

Medicine Bulletin, EarlyView.
ABSTRACT Attention‐deficit/hyperactivity disorder (ADHD) is increasingly linked to disturbances in circadian regulation, yet this temporal dimension remains insufficiently integrated into research and clinical practice. This perspective synthesises current evidence on circadian misalignment in ADHD, reframing commonly reported sleep disturbances and ...
Ping Wang, Bo Zeng, Bivek Singh
wiley   +1 more source

Gpr176 is a Gz-linked orphan G-protein-coupled receptor that sets the pace of circadian behaviour

Nature Communications, 2016
The suprachiasmatic nucleus (SCN) is the central regulator of circadian rhythms. Here the authors identify mouse Gpr176 as a pace modulator of this circadian clock and characterize its mode of action as coupling to Gz rather than Gi subunits.
Masao Doi, Iori Murai, Sumihiro Kunisue, Genzui Setsu, Naohiro Uchio, Rina Tanaka, Sakurako Kobayashi, Hiroyuki Shimatani, Hida Hayashi, Hsu-Wen Chao, Yuuki Nakagawa, Yukari Takahashi, Yunhong Hotta, Jun-ichirou Yasunaga, Masao Matsuoka, Michael H. Hastings, Hiroshi Kiyonari, Hitoshi Okamura   +17 more
doaj   +1 more source