Evidence map›Paper›PMID 32410982›Full record

ArticleFrontiers in aging neuroscience2020

Channelrhodopsin Excitation Contracts Brain Pericytes and Reduces Blood Flow in the Aging Mouse Brain

Amy R Nelson, Meghana A Sagare, Yaoming Wang, Kassandra Kisler, Zhen Zhao, Berislav V Zlokovic

Open access · goldAbstract read
In one paragraph

Article in Frontiers in aging neuroscience, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed
6.1field-weighted citation impact, top 2% 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

54 citing papers in PubMed, 80 citations in OpenAlex.

  1. Chemogenetic modulation of CNS pericytes: Impact on pericyte CaMolecular therapy : the journal of the American Society of Gene Therapy · 2026
    Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Pericytes in mouse heart.Frontiers in physiology · 2025
    Article
  8. Article
  9. Review
  10. KProceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  11. Immune system activation and cognitive impairment in arterial hypertension.American journal of physiology. Cell physiology · 2024
    Review
  12. Article
  13. Review
  14. KArhiv za farmaciju · 2024
    Article
  15. "No-reflow" phenomenon in acute ischemic stroke.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2024
    Review
  16. Review
  17. Orai, RyR, and IPCommunications biology · 2023
    Article
  18. Review
  19. Vascular contributions to Alzheimer's disease.Translational research : the journal of laboratory and clinical medicine · 2023
    Review
  20. Intraluminal pressure elevates intracellular calcium and contracts CNS pericytes: Role of voltage-dependent calcium channels.Proceedings of the National Academy of Sciences of the United States of America · 2023
    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.

Amy R NelsonDepartment of Physiology and Neuroscience, Zilkha Neurogenetic Institute, University of Southern California, Los Angeles, CA, United States.
Meghana A SagareDepartment of Physiology and Neuroscience, Zilkha Neurogenetic Institute, University of Southern California, Los Angeles, CA, United States.
Yaoming WangDepartment of Physiology and Neuroscience, Zilkha Neurogenetic Institute, University of Southern California, Los Angeles, CA, United States.
Kassandra KislerDepartment of Physiology and Neuroscience, Zilkha Neurogenetic Institute, University of Southern California, Los Angeles, CA, United States.
Zhen ZhaoDepartment of Physiology and Neuroscience, Zilkha Neurogenetic Institute, University of Southern California, Los Angeles, CA, United States.
Berislav V ZlokovicDepartment of Physiology and Neuroscience, Zilkha Neurogenetic Institute, University of Southern California, Los Angeles, CA, United States.
University of Southern California · US

Funding

VASCULAR RISK AND COGNITIVE STATUS IN A LATINO POPULATIONP50AG005142 · NIA · UNIVERSITY OF SOUTHERN CALIFORNIA · PI ARANDA, MARIA P. · 1985 to 2019
$41.0M
Vascular Contributions to Dementia and Genetic Risk Factors for Alzheimer's DiseaseP01AG052350 · NIA · UNIVERSITY OF SOUTHERN CALIFORNIA · PI Daniel A Nation, ARTHUR W TOGA · 2016 to 2026
$28.4M
USCADRC Diversity Supplement PachicanoP30AG066530 · NIA · UNIVERSITY OF SOUTHERN CALIFORNIA · PI HELENA Chang CHUI, ARTHUR W TOGA · 2020 to 2026
$27.8M
Alzheimer's Abeta, Tau, Apolipoproteins and Blood-brain barrierR01NS034467 · NINDS · UNIVERSITY OF SOUTHERN CALIFORNIA · PI YASSINE, HUSSEIN N · 1995 to 2024
$9.1M
The role of pericytes in the aging brain and pathogenesis and treatment of neurodegeneration, and Alzheimer's A-beta and tau pathologyRF1AG039452 · NIA · UNIVERSITY OF SOUTHERN CALIFORNIA · PI ICHIDA, JUSTIN KAWIKA · 2019 to 2019
$4.0M
The role of pericytes in white matter diseaseR01NS100459 · NINDS · UNIVERSITY OF SOUTHERN CALIFORNIA · PI ZLOKOVIC, BERISLAV V · 2016 to 2020
$3.6M
Activated protein C system in stroke modelsR01NS090904 · NINDS · UNIVERSITY OF SOUTHERN CALIFORNIA · PI ZLOKOVIC, BERISLAV V · 2014 to 2018
$3.2M
Cerebrovascular beta-Amyloidosis: A-beta CNS Transport PathwaysR01AG023084 · NIA · UNIVERSITY OF SOUTHERN CALIFORNIA · PI ZLOKOVIC, BERISLAV V · 2015 to 2019
$3.0M
The role of pericytes in the adult and the aging brainR01AG039452 · NIA · UNIVERSITY OF SOUTHERN CALIFORNIA · PI ZLOKOVIC, BERISLAV V · 2011 to 2015
$1.6M
Brain pericyte contractility, cerebral blood flow and blood-brain barrier integrity are impaired by normal aging and Alzheimer's disease amyloid-beta and are dependent on p75NTRR00AG058780 · NIA · UNIVERSITY OF SOUTH ALABAMA · PI NELSON, AMY R · 2020 to 2022
$716k
Brain pericyte contractility, cerebral blood flow and blood-brain barrier integrity are impaired by normal aging and Alzheimer's disease amyloid-beta and are dependent on p75NTRK99AG058780 · NIA · UNIVERSITY OF SOUTHERN CALIFORNIA · PI NELSON, AMY R · 2018 to 2019
$252k
NIA NIH HHS K99 AG058780NIA NIH HHS P01 AG052350NIA NIH HHS P30 AG066530NIA NIH HHS P50 AG005142NIA NIH HHS R00 AG058780NIA NIH HHS R01 AG023084NIA NIH HHS R01 AG039452NIA NIH HHS RF1 AG039452NINDS NIH HHS R01 NS034467NINDS NIH HHS R01 NS090904NINDS NIH HHS R01 NS100459
6 · The paper itself

Abstract

Brains depend on blood flow for the delivery of oxygen and nutrients essential for proper neuronal and synaptic functioning. French physiologist Rouget was the first to describe pericytes in 1873 as regularly arranged longitudinal amoeboid cells on capillaries that have a muscular coat, implying that these are contractile cells that regulate blood flow. Although there have been >30 publications from different groups, including our group, demonstrating that pericytes are contractile cells that can regulate hemodynamic responses in the brain, the role of pericytes in controlling cerebral blood flow (CBF) has not been confirmed by all studies. Moreover, recent studies using different optogenetic models to express light-sensitive channelrhodopsin-2 (ChR2) cation channels in pericytes were not conclusive; one, suggesting that pericytes expressing ChR2 do not contract after light stimulus, and the other, demonstrating contraction of pericytes expressing ChR2 after light stimulus. Since two-photon optogenetics provides a powerful tool to study mechanisms of blood flow regulation at the level of brain capillaries, we re-examined the contractility of brain pericytes

Indexed as

brain capillarieschannelrhodopsinoptogeneticspericytered blood cell capillary flow

Identifiers

PMID32410982
PMCPMC7201096
OpenAlexW3023320726

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.