Evidence map›Paper›PMID 37118115›Full record

ArticleNature aging2023

Impaired dynamics of precapillary sphincters and pericytes at first-order capillaries predict reduced neurovascular function in the aging mouse brain.

Changsi Cai, Stefan Andreas Zambach, Søren Grubb, Lechan Tao, Chen He, Barbara Lykke Lind, Kirsten Joan Thomsen, Xiao Zhang, Bjørn Olav Hald, Reena Murmu Nielsen and 4 more

Open access · greenAbstract read
In one paragraph

Article in Nature aging, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
6.5field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

39 citing papers in PubMed, 54 citations in OpenAlex.

  1. Pericyte KNature cardiovascular research · 2026
    Article
  2. Reconstructing cerebral lymphatic clearance: an emerging target in the Alzheimer's disease therapeutic pipeline.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Review
  3. Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Eppur si muove: the dynamic brain pericyte.Fluids and barriers of the CNS · 2025
    Review
  11. Systemic nimodipine affects pericyte calcium signaling, resting hemodynamics and neurovascular coupling in healthy mouse brain.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2025
    Article
  12. Article
  13. Review
  14. Pericytes in the optic nerve head.Progress in retinal and eye research · 2025
    Review
  15. Neurophotonics · 2025
    Article
  16. Article
  17. Review
  18. Pericyte Electrical Signalling and Brain Haemodynamics.Basic & clinical pharmacology & toxicology · 2025
    Review
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors at 2 institutions in 3 countries.

Changsi Cai *Department of Neuroscience, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark. ccai@sund.ku.dk.ORCID http://orcid.org/0000-0002-7001-610X
Stefan Andreas Zambach *Department of Neuroscience, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark.
Søren GrubbDepartment of Neuroscience, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark.
Lechan TaoDepartment of Neuroscience, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark.
Chen HeDepartment of Neuroscience, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark.
Barbara Lykke LindDepartment of Neuroscience, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark.
Kirsten Joan ThomsenDepartment of Neuroscience, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark.
Xiao ZhangDepartment of Neuroscience, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark.
Bjørn Olav HaldDepartment of Neuroscience, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark.
Reena Murmu NielsenDepartment of Neuroscience, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark.
Kayeon KimDepartment of Neuroscience, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark.
Anna DevorDepartment of Biomedical Engineering, Boston University, Boston, MA, USA.
Micael LønstrupDepartment of Neuroscience, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark.ORCID http://orcid.org/0000-0003-4302-7978
Martin Johannes LauritzenDepartment of Neuroscience, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark. mlauritz@sund.ku.dk.ORCID http://orcid.org/0000-0002-1517-1131
University of Copenhagen · DKBoston University · US

Funding

Project 4U19NS123717 · NINDS · BOSTON UNIVERSITY (CHARLES RIVER CAMPUS) · PI LINNINGER, ANDREAS A · 2021 to 2025
$13.4M
Effects of intrinsic and drug-induced neuromodulation on functional brain imagingR01DA050159 · NIDA · BOSTON UNIVERSITY (CHARLES RIVER CAMPUS) · PI DEVOR, ANNA · 2020 to 2024
$1.9M
NIDA NIH HHS R01 DA050159NINDS NIH HHS U19 NS123717
6 · The paper itself

Abstract

The microvascular inflow tract, comprising the penetrating arterioles, precapillary sphincters and first-order capillaries, is the bottleneck for brain blood flow and energy supply. Exactly how aging alters the structure and function of the microvascular inflow tract remains unclear. By in vivo four-dimensional two-photon imaging, we reveal an age-dependent decrease in vaso-responsivity accompanied by a decrease in vessel density close to the arterioles and loss of vascular mural cell processes, although the number of mural cell somas and their alpha smooth muscle actin density were preserved. The age-related reduction in vascular reactivity was mostly pronounced at precapillary sphincters, highlighting their crucial role in capillary blood flow regulation. Mathematical modeling revealed impaired pressure and flow control in aged mice during vasoconstriction. Interventions that preserve dynamics of cerebral blood vessels may ameliorate age-related decreases in blood flow and prevent brain frailty.

Indexed as

CapillariesPericytesAnimalsArteriolesBrainHemodynamicsMice

Identifiers

PMID37118115
PMCPMC11081516
OpenAlexW4318071655

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

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.