Evidence map›Paper›PMID 33899558›Full record

ArticleJournal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism2021

Differential pial and penetrating arterial responses examined by optogenetic activation of astrocytes and neurons.

Nao Hatakeyama, Miyuki Unekawa, Juri Murata, Yutaka Tomita, Norihiro Suzuki, Jin Nakahara, Hiroyuki Takuwa, Iwao Kanno, Ko Matsui, Kenji F Tanaka and 1 more

Open access · greenAbstract read
In one paragraph

Article in Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.4field-weighted citation impact, top 20% 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

14 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
  2. Article
  3. Neurophotonics · 2025
    Article
  4. Review
  5. Astrocyte Regulation of Cerebral Blood Flow in Health and Disease.Cold Spring Harbor perspectives in biology · 2024
    Review
  6. Astrocyte KDM4A mediates chemokines and drives neutrophil infiltration to aggravate cerebral ischemia and reperfusion injury.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2024
    Article
  7. Large differences in collateral blood vessel abundance among individuals arise from multiple genetic variants.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2023
    Article
  8. Article
  9. Article
  10. Review
  11. Preserving stroke penumbra by targeting lipid signalling.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2023
    Article
  12. Article
  13. Article
  14. Review
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

11 authors at 3 institutions in 1 country.

Nao HatakeyamaGraduate School of Informatics and Engineering, University of Electro-Communications, Tokyo, Japan.
Miyuki UnekawaDepartment of Neurology, Keio University School of Medicine, Tokyo, Japan.
Juri MurataGraduate School of Informatics and Engineering, University of Electro-Communications, Tokyo, Japan.
Yutaka TomitaDepartment of Neurology, Keio University School of Medicine, Tokyo, Japan.
Norihiro SuzukiDepartment of Neurology, Keio University School of Medicine, Tokyo, Japan.
Jin NakaharaDepartment of Neurology, Keio University School of Medicine, Tokyo, Japan.
Hiroyuki TakuwaDepartment of Functional Brain Imaging Research, National Institute of Radiological Sciences, Chiba, Japan.
Iwao KannoDepartment of Functional Brain Imaging Research, National Institute of Radiological Sciences, Chiba, Japan.ORCID 0000-0002-1844-406X
Ko MatsuiSuper-Network Brain Physiology, Graduate School of Life Sciences, Tohoku University, Miyagi, Japan.
Kenji F TanakaDepartment of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan.
Kazuto MasamotoGraduate School of Informatics and Engineering, University of Electro-Communications, Tokyo, Japan.
Keio University · JPUniversity of Electro-Communications · JPTohoku University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A variety of brain cells participates in neurovascular coupling by transmitting and modulating vasoactive signals. The present study aimed to probe cell type-dependent cerebrovascular (i.e., pial and penetrating arterial) responses with optogenetics in the cortex of anesthetized mice. Two lines of the transgenic mice expressing a step function type of light-gated cation channel (channelrhodopsine-2; ChR2) in either cortical neurons (muscarinic acetylcholine receptors) or astrocytes (Mlc1-positive) were used in the experiments. Photo-activation of ChR2-expressing astrocytes resulted in a widespread increase in cerebral blood flow (CBF), extending to the nonstimulated periphery. In contrast, photo-activation of ChR2-expressing neurons led to a relatively localized increase in CBF. The differences in the spatial extent of the CBF responses are potentially explained by differences in the involvement of the vascular compartments.

Indexed as

AnimalsAstrocytesDisease Models, AnimalHumansMiceNeuronsOptogeneticsAnimal modelcerebral microcirculationin vivo optical imaginglaser speckle flowgraphytwo-photon microscopy

Identifiers

PMID33899558
PMCPMC8504944
OpenAlexW3159367410

What OpenQuestion holds

Textmetadata
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.