Evidence map›Paper›PMID 26346140›Full record

ArticleNeurobiology of aging2015

High incidence of adverse cerebral blood flow responses to spreading depolarization in the aged ischemic rat brain.

Ákos Menyhárt, Péter Makra, Borbála É Szepes, Orsolya M Tóth, Péter Hertelendy, Ferenc Bari, Eszter Farkas

Abstract read
PubMed Publisher
In one paragraph

Article in Neurobiology of aging, 2015. 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
2.5field-weighted citation impact, top 11% 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, 38 citations in OpenAlex.

  1. Article
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  9. Article
  10. Article
  11. Determinants of Optogenetic Cortical Spreading Depolarizations.Cerebral cortex (New York, N.Y. : 1991) · 2019
    Article
  12. Review
  13. Review
  14. Article
  15. Review
  16. Article
  17. Age-related impairment of metabovascular coupling during cortical spreading depolarizations.American journal of physiology. Heart and circulatory physiology · 2017
    Article
  18. Review
  19. Heterogeneous propagation of spreading depolarizations in the lissencephalic and gyrencephalic brain.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2017
    Article
  20. Advancing age and ischemia elevate the electric threshold to elicit spreading depolarization in the cerebral cortex of young adult rats.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2017
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

Ákos MenyhártDepartment of Medical Physics and Informatics, Faculty of Medicine, Faculty of Science and Informatics, University of Szeged, Szeged, Hungary.
Péter MakraDepartment of Medical Physics and Informatics, Faculty of Medicine, Faculty of Science and Informatics, University of Szeged, Szeged, Hungary.
Borbála É SzepesDepartment of Medical Physics and Informatics, Faculty of Medicine, Faculty of Science and Informatics, University of Szeged, Szeged, Hungary.
Orsolya M TóthDepartment of Medical Physics and Informatics, Faculty of Medicine, Faculty of Science and Informatics, University of Szeged, Szeged, Hungary.
Péter HertelendyDepartment of Medical Physics and Informatics, Faculty of Medicine, Faculty of Science and Informatics, University of Szeged, Szeged, Hungary.
Ferenc BariDepartment of Medical Physics and Informatics, Faculty of Medicine, Faculty of Science and Informatics, University of Szeged, Szeged, Hungary.
Eszter FarkasDepartment of Medical Physics and Informatics, Faculty of Medicine, Faculty of Science and Informatics, University of Szeged, Szeged, Hungary. Electronic address: farkas.eszter.1@med.u-szeged.hu.
University of Szeged · HU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Spreading depolarizations (SDs) occur spontaneously in the brain after stroke, exacerbate ischemic injury, and thus emerge as a potential target of intervention. Aging predicts worse outcome from stroke; yet, the impact of age on SD evolution is not clear. Cerebral ischemia was induced by bilateral common carotid artery occlusion in young (8-9 weeks old, n = 8) and old (2 year olds, n = 6) anesthetized rats. Sham-operated animals of both age groups served as control (n = 12). Electrocorticogram, direct current potential, and cerebral blood flow (CBF) variations were acquired via a small craniotomy above the parietal cortex. SDs were elicited by KCl through a second craniotomy distal to the recording site. Ischemia and age delayed the recovery from SD. CBF decreased progressively during ischemia in the old animals selectively, and inverse neurovascular coupling with SD evolved in the old but not in the young ischemic group. We propose that (mal)adaptation of cerebrovascular function with aging impairs the SD-related CBF response, which is implicated in the intensified expansion of ischemic damage in the old brain.

Indexed as

AgingAnimalsBrainBrain IschemiaCerebrovascular CirculationElectrocorticographyMaleRats, Sprague-DawleyRats, WistarAgingCerebral blood flowCerebral ischemiaElectrophysiologyRatSpreading depolarization

Identifiers

PMID26346140
OpenAlexW2164973457

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.