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http://dx.doi.org/10.1007/s12264-021-00788-4 | DOI Listing |
Mol Psychiatry
August 2024
Department of Molecular and Cellular Biochemistry, the Barnstable Brown Diabetes and Obesity Center, University of Kentucky College of Medicine, Lexington, KY, USA.
Astrocytes are multi-functional glial cells in the central nervous system that play critical roles in modulation of metabolism, extracellular ion and neurotransmitter levels, and synaptic plasticity. Astrocyte-derived signaling molecules mediate many of these modulatory functions of astrocytes, including vesicular release of ATP. In the present study, we used a unique genetic mouse model to investigate the functional significance of astrocytic exocytosis of ATP.
View Article and Find Full Text PDFNat Neurosci
September 2023
Department of Physiology and Neuroscience, Dental Research Institute, Seoul National University School of Dentistry, Seoul, Republic of Korea.
Social hierarchy is established as an outcome of individual social behaviors, such as dominance behavior during long-term interactions with others. Astrocytes are implicated in optimizing the balance between excitatory and inhibitory (E/I) neuronal activity, which may influence social behavior. However, the contribution of astrocytes in the prefrontal cortex to dominance behavior is unclear.
View Article and Find Full Text PDFRedox Biol
August 2022
State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, 211198, China; Clinical Metabolomics Center, China Pharmaceutical University, Nanjing, Jiangsu, 211198, China. Electronic address:
Astrocytes activation in response to stroke results in altered mitochondrial exchange with neurons. Ginsenoside Rb1is a major ginsenoside of Panax ginseng particularly known for its neuroprotective potential. This work aimed to investigate if Rb1 could rescue neurons from ischemic insult via astrocyte inactivation and mitochondrial transfer.
View Article and Find Full Text PDFGlia
October 2022
Department of Pharmacology, School of Dentistry, Kyungpook National University, Daegu, South Korea.
Although ATP and/or adenosine derived from astrocytes are known to regulate sleep, the precise mechanisms underlying the somnogenic effects of ATP and adenosine remain unclear. We selectively expressed channelrhodopsin-2 (ChR2), a light-sensitive ion channel, in astrocytes within the ventrolateral preoptic nucleus (VLPO), which is an essential brain nucleus involved in sleep promotion. We then examined the effects of photostimulation of astrocytic ChR2 on neuronal excitability using whole-cell patch-clamp recordings in two functionally distinct types of VLPO neurons: sleep-promoting GABAergic projection neurons and non-sleep-promoting local GABAergic neurons.
View Article and Find Full Text PDFBiochem Biophys Res Commun
June 2022
Department of Physiology, Wuhan University School of Basic Medical Sciences, Wuhan, Hubei, China. Electronic address:
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