Evidence map›Paper›PMID 27393311›Full record

ArticleJournal of neuroscience methods2016

Two-photon imaging of cerebral hemodynamics and neural activity in awake and anesthetized marmosets.

Thom P Santisakultarm, Calvin J Kersbergen, Daryl K Bandy, David C Ide, Sang-Ho Choi, Afonso C Silva

Open access · greenAbstract read
In one paragraph

Article in Journal of neuroscience methods, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

25 citing papers in PubMed, 57 citations in OpenAlex.

  1. Article
  2. Article
  3. Neural Recording Chambers for Long-Term Access to Brain Tissue.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
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  15. Review
  16. Tonic regulation of middle meningeal artery diameter by ATP-sensitive potassium channels.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2019
    Article
  17. Review
  18. Comparative Principles for Next-Generation Neuroscience.Frontiers in behavioral neuroscience · 2019
    Article
  19. Review
  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

6 authors at 1 institution in 1 country.

Thom P SantisakultarmCerebral Microcirculation Section, Laboratory of Functional and Molecular Imaging, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, 20892, USA.
Calvin J KersbergenCerebral Microcirculation Section, Laboratory of Functional and Molecular Imaging, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, 20892, USA.
Daryl K BandySection on Instrumentation, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, 20892, USA.
David C IdeSection on Instrumentation, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, 20892, USA.
Sang-Ho ChoiCerebral Microcirculation Section, Laboratory of Functional and Molecular Imaging, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, 20892, USA.
Afonso C SilvaCerebral Microcirculation Section, Laboratory of Functional and Molecular Imaging, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, 20892, USA. Electronic address: silvaa@ninds.nih.gov.
National Institutes of Health · US

Funding

Spatial-Temporal Characterization of The Hemodynamic Response to Neural ActivityZIANS003041 · NINDS · NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE · PI SILVA, AFONSO · 2009 to 2019
$17.1M
Investigation of the Modulators of Cerebrovascular CouplingZIANS003012 · NINDS · NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE · PI SILVA, AFONSO · 2009 to 2019
$15.4M
Intramural NIH HHS ZIA NS003012Intramural NIH HHS ZIA NS003041
6 · The paper itself

Abstract

backgroundMarmosets are a powerful, emerging model for human behavior and neurological disorders. However, longitudinal imaging modalities that visualize both cellular structure and function within the cortex are not available in this animal model. Hence, we implemented an approach to quantify vascular topology, hemodynamics, and neural activity in awake marmosets using two-photon microscopy (2PM). NEW

methodMarmosets were acclimated to a custom stereotaxic system. AAV1-GCaMP5G was injected into somatosensory cortex to optically indicate neural activity, and a cranial chamber was implanted.

resultsLongitudinal 2PM revealed vasculature and neurons 500μm below the cortical surface. Vascular response and neural activity during sensory stimulation were preserved over 5 and 3 months, respectively, before optical quality deteriorated. Vascular remodeling including increased tortuosity and branching was quantified. However, capillary connectivity from arterioles to venules remained unchanged. Further, behavioral assessment before and after surgery demonstrated no impact on cognitive and motor function. Immunohistochemistry confirmed minimal astrocyte activation with no focal damage. Over 6 months, total cortical depth visualized decreased. When under anesthesia, the most prominent isoflurane-induced vasodilation occurred in capillaries and smaller arterioles. COMPARISON WITH EXISTING METHOD(S): These results demonstrate the capability to repeatedly observe cortical physiology in awake marmosets over months.

conclusionsThis work provides a novel and insightful technique to investigate critical mechanisms in neurological disorders in awake marmosets without introducing confounds from anesthesia.

Indexed as

CallithrixAnesthesiaAnesthetics, InhalationAnimalsBrainCalciumCerebrovascular CirculationCognitionDependovirusGenetic VectorsHemodynamicsIsofluraneLongitudinal StudiesMaleMicroscopy, FluorescenceMotor SkillsAnesthetics, InhalationCalciumIsofluraneGCaMPNeurovascular couplingNon-human primatesSomatosensory activationTwo-photon laser scanning microscopyVascular topology

Identifiers

PMID27393311
PMCPMC5003758
OpenAlexW2473784504

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.