[HTML][HTML] Neutrophils obstructing brain capillaries are a major cause of no-reflow in ischemic stroke

M El Amki, C Glück, N Binder, W Middleham, MT Wyss… - Cell reports, 2020 - cell.com
Despite successful clot retrieval in large vessel occlusion stroke,∼ 50% of patients have an
unfavorable clinical outcome. The mechanisms underlying this functional reperfusion failure …

Oligodendrocyte–axon metabolic coupling is mediated by extracellular K+ and maintains axonal health

ZJ Looser, Z Faik, L Ravotto, HS Zanker, RB Jung… - Nature …, 2024 - nature.com
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 …

[HTML][HTML] In vivo evidence for a lactate gradient from astrocytes to neurons

P Mächler, MT Wyss, M Elsayed, J Stobart, R Gutierrez… - Cell metabolism, 2016 - cell.com
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 …

A genetically encoded sensor for in vivo imaging of orexin neuropeptides

L Duffet, S Kosar, M Panniello, B Viberti, E Bracey… - Nature …, 2022 - nature.com
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 …

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 …

[HTML][HTML] Enlightening brain energy metabolism

LF Barros, I Ruminot, PY Sandoval… - Neurobiology of Disease, 2023 - Elsevier
Brain tissue metabolism is distributed across several cell types and subcellular
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 …

Cortical circuit activity evokes rapid astrocyte calcium signals on a similar timescale to neurons

JL Stobart, KD Ferrari, MJP Barrett, C Glück, MJ Stobart… - Neuron, 2018 - cell.com
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 …

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 …

Arousal-induced cortical activity triggers lactate release from astrocytes

M Zuend, AS Saab, MT Wyss, KD Ferrari, L Hösli… - Nature …, 2020 - nature.com
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 …