[HTML][HTML] Neutrophils obstructing brain capillaries are a major cause of no-reflow in ischemic stroke
Despite successful clot retrieval in large vessel occlusion stroke,∼ 50% of patients have an
unfavorable clinical outcome. The mechanisms underlying this functional reperfusion failure …
unfavorable clinical outcome. The mechanisms underlying this functional reperfusion failure …
Oligodendrocyte–axon metabolic coupling is mediated by extracellular K+ and maintains axonal health
The integrity of myelinated axons relies on homeostatic support from oligodendrocytes
(OLs). To determine how OLs detect axonal spiking and how rapid axon–OL metabolic …
(OLs). To determine how OLs detect axonal spiking and how rapid axon–OL metabolic …
[HTML][HTML] In vivo evidence for a lactate gradient from astrocytes to neurons
Investigating lactate dynamics in brain tissue is challenging, partly because in vivo data at
cellular resolution are not available. We monitored lactate in cortical astrocytes and neurons …
cellular resolution are not available. We monitored lactate in cortical astrocytes and neurons …
A genetically encoded sensor for in vivo imaging of orexin neuropeptides
Orexins (also called hypocretins) are hypothalamic neuropeptides that carry out essential
functions in the central nervous system; however, little is known about their release and …
functions in the central nervous system; however, little is known about their release and …
Decoupling astrocytes in adult mice impairs synaptic plasticity and spatial learning
L Hösli, N Binini, KD Ferrari, L Thieren, ZJ Looser… - Cell reports, 2022 - cell.com
The mechanisms by which astrocytes modulate neural homeostasis, synaptic plasticity, and
memory are still poorly explored. Astrocytes form large intercellular networks by gap junction …
memory are still poorly explored. Astrocytes form large intercellular networks by gap junction …
[HTML][HTML] Enlightening brain energy metabolism
Brain tissue metabolism is distributed across several cell types and subcellular
compartments, which activate at different times and with different temporal patterns. The …
compartments, which activate at different times and with different temporal patterns. The …
[HTML][HTML] Direct vascular contact is a hallmark of cerebral astrocytes
L Hösli, M Zuend, G Bredell, HS Zanker… - Cell reports, 2022 - cell.com
Astrocytes establish extensive networks via gap junctions that allow each astrocyte to
connect indirectly to the vasculature. However, the proportion of astrocytes directly …
connect indirectly to the vasculature. However, the proportion of astrocytes directly …
Cortical circuit activity evokes rapid astrocyte calcium signals on a similar timescale to neurons
Sensory stimulation evokes intracellular calcium signals in astrocytes; however, the timing of
these signals is disputed. Here, we used novel combinations of genetically encoded calcium …
these signals is disputed. Here, we used novel combinations of genetically encoded calcium …
Visualizing physiological parameters in cells and tissues using genetically encoded indicators for metabolites
A San Martín, R Arce-Molina, C Aburto… - Free Radical Biology …, 2022 - Elsevier
The study of metabolism is undergoing a renaissance. Since the year 2002, over 50
genetically-encoded fluorescent indicators (GEFIs) have been introduced, capable of …
genetically-encoded fluorescent indicators (GEFIs) have been introduced, capable of …
Arousal-induced cortical activity triggers lactate release from astrocytes
It has been suggested that, in states of arousal, release of noradrenaline and β-adrenergic
signalling affect long-term memory formation by stimulating astrocytic lactate production from …
signalling affect long-term memory formation by stimulating astrocytic lactate production from …