User profiles for Daniel M. Bjørnstad

Daniel Marelius Bjørnstad

PhD Candidate, University of Oslo
Verified email at medisin.uio.no
Cited by 264

[HTML][HTML] Astrocytic Ca2+ signaling is reduced during sleep and is involved in the regulation of slow wave sleep

L Bojarskaite, DM Bjørnstad, KH Pettersen… - Nature …, 2020 - nature.com
Astrocytic Ca 2+ signaling has been intensively studied in health and disease but has not
been quantified during natural sleep. Here, we employ an activity-based algorithm to assess …

[HTML][HTML] Sleep cycle-dependent vascular dynamics in male mice and the predicted effects on perivascular cerebrospinal fluid flow and solute transport

L Bojarskaite, A Vallet, DM Bjørnstad… - Nature …, 2023 - nature.com
Perivascular spaces are important highways for fluid and solute transport in the brain enabling
efficient waste clearance during sleep. However, the underlying mechanisms augmenting …

Impaired astrocytic Ca2+ signaling in awake-behaving Alzheimer's disease transgenic mice

…, GHES Skaaraas, C Cunen, DM Bjørnstad… - Elife, 2022 - elifesciences.org
Increased astrocytic Ca2+ signaling has been shown in Alzheimer’s disease mouse models,
but to date no reports have characterized behaviorally induced astrocytic Ca2+ signaling in …

[HTML][HTML] Begonia—A Two-Photon Imaging Analysis Pipeline for Astrocytic Ca2+ Signals

DM Bjørnstad, KS Åbjørsbråten… - Frontiers in Cellular …, 2021 - frontiersin.org
Imaging the intact brain of awake behaving mice without the dampening effects of anesthesia,
has revealed an exceedingly rich repertoire of astrocytic Ca 2+ signals. Analyzing and …

Deletion of aquaporin‐4 improves capillary blood flow distribution in brain edema

…, KS Åbjørsbråten, DM Bjørnstad, W Tang, M Stern… - Glia, 2023 - Wiley Online Library
Brain edema is a feared complication to disorders and insults affecting the brain. It can be
fatal if the increase in intracranial pressure is sufficiently large to cause brain herniation. …

Sleep cycle-dependent vascular dynamics enhance perivascular cerebrospinal fluid flow and solute transport

L Bojarskaite, DM Bjørnstad, A Vallet, KMG Binder… - BioRxiv, 2022 - biorxiv.org
Perivascular spaces (PVS) are important highways for fluid and solute transport in the brain
enabling efficient waste clearance during sleep. Using two-photon imaging of naturally …

Deletion of aquaporin-4 curtails extracellular glutamate elevation in cortical spreading depression in awake mice

…, W Tang, KH Pettersen, DM Bjørnstad… - Cerebral …, 2017 - academic.oup.com
Cortical spreading depression (CSD) is a phenomenon that challenges the homeostatic
mechanisms on which normal brain function so critically depends. Analyzing the sequence of …

Ca2+ signaling in astrocytes is sleep-wake state specific and modulates sleep

L Bojarskaite, DM Bjørnstad, KH Pettersen, C Cunen… - bioRxiv, 2019 - biorxiv.org
Astrocytic Ca 2+ signaling has been intensively studied in health and disease but remains
uncharacterized in sleep. Here, we employed a novel activity-based algorithm to assess …

Impaired astrocytic Ca2+ signalling in awake Alzheimer's disease transgenic mice

…, GHE Syverstad Skaaraas, C Cunen, DM Bjørnstad… - bioRxiv, 2021 - biorxiv.org
Increased astrocytic Ca 2+ signaling related to amyloid plaques has been shown in Alzheimer’s
disease mouse models, but to date no reports have characterized behaviorally induced …

An evaluation of space time cube representation of spatiotemporal patterns

…, N Dahlback, D Anundi, M Bjornstad… - … on visualization and …, 2008 - ieeexplore.ieee.org
Space time cube representation is an information visualization technique where
spatiotemporal data points are mapped into a cube. Information visualization researchers have …