Norepinephrine changes behavioral state via astroglial purinergic signaling

AB Chen, M Duque, VM Wang, M Dhanasekar, X Mi… - BioRxiv, 2024 - pmc.ncbi.nlm.nih.gov
Both neurons and glia communicate via diffusible neuromodulatory substances, but the
substrates of computation in such neuromodulatory networks are unclear. During behavioral …

[HTML][HTML] Astrocytes and Tinnitus

P Perin, R Pizzala - Brain Sciences, 2024 - pmc.ncbi.nlm.nih.gov
Tinnitus is correlated with anomalies of neural plasticity and has been found to be affected
by inflammatory status. The current theories on tinnitus, although still somewhat incomplete …

Early-life stress induces persistent astrocyte dysfunction associated with fear generalisation

M Guayasamin, LR Depaauw-Holt, II Adedipe… - eLife, 2025 - elifesciences.org
Early-life stress can have lifelong consequences, enhancing stress susceptibility and
resulting in behavioural and cognitive deficits. While the effects of early-life stress on …

[HTML][HTML] Characterization of the Astrocyte Calcium Response to Norepinephrine in the Ventral Tegmental Area

M Speggiorin, A Chiavegato, M Zonta… - Cells, 2024 - mdpi.com
Astrocytes from different brain regions respond with Ca2+ elevations to the catecholamine
norepinephrine (NE). However, whether this noradrenergic-mediated signaling is present in …

Ca2+ excitability of glia to neuromodulator octopamine in Drosophila living brain is greater than that of neurons

U Černe, A Horvat, E Sanjković, N Kozoderc… - Acta …, 2025 - Wiley Online Library
Abstract Aim Octopamine in the Drosophila brain has a neuromodulatory role similar to that
of noradrenaline in mammals. After release from Tdc2 neurons, octopamine/tyramine may …

[HTML][HTML] Cortical norepinephrine-astrocyte signaling critically mediates learned behavior

GT Drummond, A Natesan, M Celotto, J Shih, P Ojha… - …, 2024 - pmc.ncbi.nlm.nih.gov
Updating behavior based on feedback from the environment is a crucial means by which
organisms learn and develop optimal behavioral strategies1–3. Norepinephrine (NE) …

Early-life stress induces persistent astrocyte dysfunction resulting in fear generalisation

M Guayasamin, LR Depaauw-Holt, II Adedipe… - bioRxiv, 2022 - biorxiv.org
Background Early-life stress can have lifelong consequences, enhancing stress
susceptibility and resulting in behavioral and cognitive deficits. While the effects of early-life …

Voltage imaging reveals circuit computations in the raphe underlying serotonin-mediated motor vigor learning

T Kawashima, Z Wei, R Haruvi, I Shainer, S Narayan… - BioRxiv, 2024 - biorxiv.org
As animals adapt to new situations, neuromodulation is a potent way to alter behavior, yet
mechanisms by which neuromodulatory nuclei compute during behavior are underexplored …

A hippocampal astrocytic sequence emerges during learning and memory

RA Senne, RL Suthard, R Cao, AH Monasterio… - bioRxiv, 2024 - biorxiv.org
The dorsal hippocampus is a heterogeneous structure with numerous cell types involved in
generating and maintaining detailed representations of space and time. Prior work has …

Astrocytic Integration of Histaminergic Signaling in the Cortex

CR Taylor - 2024 - search.proquest.com
Finely tuned arousal control is required for animal survival. To catch food, a predatory
animal is keenly attentive on a hunt, and to survive, prey is acutely vigilant. These critical …