Results 21 to 30 of about 230,455 (251)

Glucokinase neurons of the paraventricular nucleus of the thalamus sense glucose and decrease food consumption

iScience, 2021
Summary: The paraventricular nucleus of the thalamus (PVT) controls goal-oriented behavior through its connections to the nucleus accumbens (NAc). We previously characterized Glut2aPVT neurons that are activated by hypoglycemia, and which increase ...
Sébastien Kessler, Gwenaël Labouèbe, Sophie Croizier, Sevasti Gaspari, David Tarussio, Bernard Thorens   +5 more
doaj   +1 more source

Intracellular Ca2+ dynamics in the ALA neuron reflect sleep pressure and regulate sleep in Caenorhabditis elegans

iScience, 2022
Summary: The mechanisms underlying sleep homeostasis are poorly understood. The nematode Caenorhabditis elegans exhibits 2 types of sleep: lethargus, or developmentally timed, and stress-induced sleep.
Shinichi Miyazaki, Taizo Kawano, Masashi Yanagisawa, Yu Hayashi   +3 more
doaj   +1 more source

Anatomical organization of temporally correlated neural calcium activity in the hippocampal CA1 region

iScience, 2023
Summary: Hippocampal CA1 neuronal ensembles generate sequential patterns of firing activity that contribute to episodic memory formation and spatial cognition. Here we used in vivo calcium imaging to record neural ensemble activities in mouse hippocampal
Lujia Chen, Xiaoxiao Lin, Qiao Ye, Zoran Nenadic, Todd C. Holmes, Douglas A. Nitz, Xiangmin Xu   +6 more
doaj   +1 more source

Neuroscience of alcoholism: molecular and cellular mechanisms [PDF]

Cellular and Molecular Life Sciences, 2009
Alcohol use and abuse appear to be related to neuroadaptive changes at functional, neurochemical, and structural levels. Acute and chronic ethanol exposure have been shown to modulate function of the activity-dependent gene transcription factor, cAMP-responsive element binding (CREB) protein in the brain, which may be associated with the development of
Sachin, Moonat, Bela G, Starkman, Amul, Sakharkar, Subhash C, Pandey   +3 more
openaire   +2 more sources

Impaired synaptic plasticity in an animal model of autism exhibiting early hippocampal GABAergic-BDNF/TrkB signaling alterations

iScience, 2023
Summary: In Neurodevelopmental Disorders, alterations of synaptic plasticity may trigger structural changes in neuronal circuits involved in cognitive functions.
Martina Sgritta, Beatrice Vignoli, Domenico Pimpinella, Marilena Griguoli, Spartaco Santi, Andrzej Bialowas, Grzegorz Wiera, Paola Zacchi, Francesca Malerba, Cristina Marchetti, Marco Canossa, Enrico Cherubini   +11 more
doaj   +1 more source

Glycine-induced NMDA receptor internalization provides neuroprotection and preserves vasculature following ischemic stroke

iScience, 2022
Summary: Ischemic stroke is the second leading cause of death worldwide. Following an ischemic event, neuronal death is triggered by uncontrolled glutamate release leading to overactivation of glutamate sensitive N-methyl-d-aspartate receptor (NMDAR ...
Julia Cappelli, Pamela Khacho, Boyang Wang, Alexandra Sokolovski, Wafae Bakkar, Sophie Raymond, Nina Ahlskog, Julian Pitney, Junzheng Wu, Prakash Chudalayandi, Adrian Y.C. Wong, Richard Bergeron   +11 more
doaj   +1 more source

Primary cilia are required for the persistence of memory and stabilization of perineuronal nets

iScience, 2021
Summary: It is well established that the formation of episodic memories requires multiple hippocampal mechanisms operating on different time scales.
Vladimir Jovasevic, Hui Zhang, Farahnaz Sananbenesi, Anita L. Guedea, Kizhake V. Soman, John E. Wiktorowicz, Andre Fischer, Jelena Radulovic   +7 more
doaj   +1 more source

Neonatal exposures to sevoflurane in rhesus monkeys alter synaptic ultrastructure in later life

iScience, 2022
Summary: Repeated or prolonged early life exposure to anesthesia is neurotoxic in animals and associated with neurocognitive impairment in later life in humans.
Tristan Fehr, William G.M. Janssen, Janis Park, Mark G. Baxter   +3 more
doaj   +1 more source

Ablation of Ventral Midbrain/Pons GABA Neurons Induces Mania-like Behaviors with Altered Sleep Homeostasis and Dopamine D2R-mediated Sleep Reduction

iScience, 2020
Summary: Individuals with the neuropsychiatric disorder mania exhibit hyperactivity, elevated mood, and a decreased need for sleep. The brain areas and neuronal populations involved in mania-like behaviors, however, have not been elucidated.
Takato Honda, Yohko Takata, Yoan Cherasse, Seiya Mizuno, Fumihiro Sugiyama, Satoru Takahashi, Hiromasa Funato, Masashi Yanagisawa, Michael Lazarus, Yo Oishi   +9 more
doaj   +1 more source

Antidepressant Effects of (S)-Ketamine through a Reduction of Hyperpolarization-Activated Current Ih

iScience, 2020
Summary: Compelling evidence suggests that a single sub-anesthetic dose of (R,S)-ketamine exerts rapid and robust antidepressant effects. However, the cellular mechanisms underlying the antidepressant effects of (R,S)-ketamine remain unclear.
Chung Sub Kim, Daniel Johnston
doaj   +1 more source