Evidence map›Paper›PMID 8723705›Full record

ArticleThe Journal of comparative neurology1996

Eicosanoids and nitric oxide influence induction of reactive gliosis from spreading depression in microglia but not astrocytes.

A O Caggiano, R P Kraig

Open access · greenAbstract read
In one paragraph

Article in The Journal of comparative neurology, 1996. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
5.6field-weighted citation impact, top 4% 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

32 citing papers in PubMed, 73 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Microglia alter the threshold of spreading depolarization and related potassium uptake in the mouse brain.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2020
    Article
  5. Non-invasively triggered spreading depolarizations induce a rapid pro-inflammatory response in cerebral cortex.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2020
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Strategies for study of neuroprotection from cold-preconditioning.Journal of visualized experiments : JoVE · 2010
    Article
  16. TNF-α and Microglial Hormetic Involvement in Neurological Health & Migraine.Dose-response : a publication of International Hormesis Society · 2010
    Article
  17. Review
  18. Article
  19. Article
  20. Multiplexed cytokine protein expression profiles from spreading depression in hippocampal organotypic cultures.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2004
    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

2 authors at 1 institution in 1 country.

A O CaggianoDepartment of Neurology, University of Chicago, IL 60637.
R P Kraig
University of Chicago · US

Funding

MEDICAL SCIENTIST TRAININGT32GM007281 · NIGMS · UNIVERSITY OF CHICAGO · PI CLARK, MARCUS RAMSAY · 1985 to 2022
$32.1M
HYDROGEN IONS AND BRAIN INFARCTIONR01NS019108 · NINDS · WEILL MEDICAL COLLEGE OF CORNELL UNIV · PI KRAIG, RICHARD P · 1985 to 2019
$5.2M
NIGMS NIH HHS T32 GM007281NIGMS NIH HHS T32-GM-07281NINDS NIH HHS NS-19108NINDS NIH HHS R01 NS019108
6 · The paper itself

Abstract

Microglia and astrocytes are transformed into reactive glia (RG) by brain disease and normal function. Eicosanoids and nitric oxide (NO), two intercellular mediators, may influence gliosis. We investigated how drugs that alter production of these paracrine signals effect induction of glial reactivity from spreading depression. Unilateral (left) neocortical spreading depression was induced in 95 halothane anesthetized rats by intracortical injections of 0.5 M KCl, with or without drug treatment (five animals/group). Immunohistochemical staining (IS) intensity using the OX-42 and anti-glial fibrillary acidic protein (GFAP) antibodies determined reactivity in microglia and astrocytes, respectively. After 3 days, brains were processed for OX-42 and GFAP-IS and mean optical densities (OD) of IS were measured. Average OD's (for OX-42) and the log ratio (left/right) of OD's (OX-42 and GFAP) were compared to normal animals. Spreading depression induced significant log ratios for both OX-42- and GFAP-IS (P's < 0.01). However, dexamethasone (a glucocorticoid), nordihydroguaiaretic acid (a lipoxygenase inhibitor), and nitroprusside (a NO donor) prevented significant left sided and log ratio OD values for microglia (P's > 0.05). L-Name, a NO synthase inhibitor, caused significant increases in left and right OD's for microglia (P's < 0.05). Mepacrine, a phospholipase A2 inhibitor, Indomethacin, a cyclooxygenase inhibitor, and phenylephrine, an adrenergic agonist, did not prevent induction of significant OX-42 log ratios (P's < 0.01, 0.05, 0.01), and resulted in increases in left side OD's (P's < 0.01, 0.05, 0.05). Significant GFAP log ratios occurred after spreading depression in all drug groups, P's < 0.01. Thus, induction of reactivity in microglia is more sensitive to eicosanoids and NO than in astrocytes.

Indexed as

AnimalsAstrocytesCortical Spreading DepressionEicosanoidsGliosisLogistic ModelsMaleMicrogliaNitric OxideRatsRats, WistarEicosanoidsNitric Oxide

Identifiers

PMID8723705
PMCPMC2807127
OpenAlexW2042198814

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.