Revisiting the neurovascular unit

S Schaeffer, C Iadecola - Nature neuroscience, 2021 - nature.com
The brain is supplied by an elaborate vascular network that originates extracranially and
reaches deep into the brain. The concept of the neurovascular unit provides a useful …

The neurovascular unit coming of age: a journey through neurovascular coupling in health and disease

C Iadecola - Neuron, 2017 - cell.com
The concept of the neurovascular unit (NVU), formalized at the 2001 Stroke Progress
Review Group meeting of the National Institute of Neurological Disorders and Stroke …

Functional ultrasound localization microscopy reveals brain-wide neurovascular activity on a microscopic scale

N Renaudin, C Demené, A Dizeux, N Ialy-Radio… - Nature …, 2022 - nature.com
The advent of neuroimaging has increased our understanding of brain function. While most
brain-wide functional imaging modalities exploit neurovascular coupling to map brain …

Brain capillary pericytes exert a substantial but slow influence on blood flow

DA Hartmann, AA Berthiaume, RI Grant, SA Harrill… - Nature …, 2021 - nature.com
The majority of the brain's vasculature is composed of intricate capillary networks lined by
capillary pericytes. However, it remains unclear whether capillary pericytes influence blood …

Neurovascular coupling and oxygenation are decreased in hippocampus compared to neocortex because of microvascular differences

K Shaw, L Bell, K Boyd, DM Grijseels, D Clarke… - Nature …, 2021 - nature.com
The hippocampus is essential for spatial and episodic memory but is damaged early in
Alzheimer's disease and is very sensitive to hypoxia. Understanding how it regulates its …

Pericyte remodeling is deficient in the aged brain and contributes to impaired capillary flow and structure

AA Berthiaume, F Schmid, S Stamenkovic… - Nature …, 2022 - nature.com
Deterioration of brain capillary flow and architecture is a hallmark of aging and dementia. It
remains unclear how loss of brain pericytes in these conditions contributes to capillary …

Neurovascular coupling mechanisms in health and neurovascular uncoupling in Alzheimer's disease

WM Zhu, A Neuhaus, DJ Beard, BA Sutherland… - Brain, 2022 - academic.oup.com
To match the metabolic demands of the brain, mechanisms have evolved to couple neuronal
activity to vasodilation, thus increasing local cerebral blood flow and delivery of oxygen and …

Precapillary sphincters maintain perfusion in the cerebral cortex

S Grubb, C Cai, BO Hald, L Khennouf… - Nature …, 2020 - nature.com
Active nerve cells release vasodilators that increase their energy supply by dilating local
blood vessels, a mechanism termed neurovascular coupling and the basis of BOLD …

Imaging faster neural dynamics with fast fMRI: A need for updated models of the hemodynamic response

JR Polimeni, LD Lewis - Progress in neurobiology, 2021 - Elsevier
Fast fMRI enables the detection of neural dynamics over timescales of hundreds of
milliseconds, suggesting it may provide a new avenue for studying subsecond neural …

Brain microvasculature has a common topology with local differences in geometry that match metabolic load

X Ji, T Ferreira, B Friedman, R Liu, H Liechty, E Bas… - Neuron, 2021 - cell.com
The microvasculature underlies the supply networks that support neuronal activity within
heterogeneous brain regions. What are common versus heterogeneous aspects of the …