ArticleVascular biology (Bristol, England)2023
Ultrastructure of precapillary sphincters and the neurovascular unit.
Article in Vascular biology (Bristol, England), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
8 citing papers in PubMed, 10 citations in OpenAlex.
- Blood flow patterns in mice are regulated by interpericyte tunneling nanotubes connecting functionally-opposite neuronal areas.Nature communications · 2026Article
- Stretch and flow at the gliovascular interface: High-fidelity modeling of astrocyte endfeet.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Ultrastructure of astrocytes using volume electron microscopy: A scoping review.The Journal of physiology · 2026Article
- 3D Ultrastructural segmentation of human microvasculature reveals new insights in pericyte-endothelial cell interactions.Frontiers in cell and developmental biology · 2026Article
- Article
- Depth-dependent contributions of various vascular zones to cerebral autoregulation and functional hyperemia: An in-silico analysis.PloS one · 2025Article
- Microglia contact cerebral vasculature through gaps between astrocyte endfeet.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2024Article
- Blood-brain barrier disruption: a culprit of cognitive decline?Fluids and barriers of the CNS · 2024Review
Corrections and comments
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Authors and funding
1 author at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Neurons communicate with vasculature to regulate blood flow in the brain, a process maintained by the neurovascular unit (NVU). This interaction, termed neurovascular coupling, is believed to involve astrocytes or molecules capable of traversing the astrocytic endfeet. The precise mechanism, however, remains elusive. Using large 3D electron microscopy datasets, we can now study the entire NVU in context of vascular hierarchy. This study presents evidence supporting the role of precapillary sphincters as a nexus for neurovascular coupling and endothelial transcytosis. It also highlights the role of fibroblast-synthesized collagen in fortifying first-order capillaries. Furthermore, I demonstrate how astrocytic endfeet establish a barrier for fluid flow and reveal that the cortex's microvasculature is semicircled by an unexpected arrangement of parenchymal neuronal processes around penetrating arterioles and arterial-end capillaries in both mouse and human brains. These discoveries offer insights into the NVU's structure and its operational mechanisms, potentially aiding researchers in devising new strategies for preserving cognitive function and promoting healthy aging.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.