Evidence map›Paper›PMID 19095864›Full record

ArticleAnesthesia and analgesia2009

The effects of beta-adrenoceptor antagonists on proinflammatory cytokine concentrations after subarachnoid hemorrhage in rats.

Haruto Kato, Masahiko Kawaguchi, Satoki Inoue, Katsuji Hirai, Hitoshi Furuya

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Article in Anesthesia and analgesia, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
–field-weighted citation impact
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

11 citing papers in PubMed.

  1. Trial
  2. Article
  3. Review
  4. Article
  5. Systemic inflammation in hemorrhagic strokes - A novel neurological sign and therapeutic target?Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2019
    Review
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Haruto KatoDepartment of Anesthesiology, Nara Medical University, Kashihara City, Nara, Japan. hkato@naramed-u.ac.j
Masahiko Kawaguchi
Satoki Inoue
Katsuji Hirai
Hitoshi Furuya

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundProinflammatory cytokines increase in cerebrospinal fluid (CSF) after subarachnoid hemorrhage (SAH). Recent evidence suggested that beta-adrenoceptor antagonist could reduce proinflammatory cytokines. We conducted the present study to examine whether beta-adrenoceptor antagonists would reduce proinflammatory cytokine concentrations after SAH in rats.

methodsIn Experiment 1, to investigate the time course of interleukin-6 (IL-6) and tumor necrosis factor-alpha (TNF-alpha), rats were randomized into groups: 1, 3, 6, and 12 h after SAH or sham operation. CSF and blood samples were obtained at each time point. In Experiment 2, to investigate the effects of beta-adrenoceptor antagonists on the IL-6 and TNF-alpha concentrations, rats were randomized into groups: 1) control group: SAH + normal saline, 2) propranolol group: SAH + propranolol, 3) metoprolol group: SAH + metoprolol, and 4) butoxamine group: SAH + butoxamine (beta(2)-adrenoceptor antagonist). CSF and blood samples were obtained 6 h after SAH. IL-6 and TNF-alpha concentrations in samples were measured.

resultsIn Experiment 1, CSF IL-6 concentrations in the SAH groups increased markedly and peaked at 6 h after SAH, whereas CSF TNF-alpha concentrations in the SAH groups were consistently low. In Experiment 2, CSF IL-6 concentrations in the propranolol and butoxamine groups were significantly lower compared with those in the control group (P < 0.01 and P < 0.05 for each group). Plasma IL-6, CSF TNF-alpha, and plasma TNF-alpha concentrations were comparable in all four groups.

conclusionsCSF IL-6 concentrations increased in the acute stage of SAH and beta-adrenoceptor antagonists with a beta(2)-adrenoceptor blocking action suppressed this elevation of IL-6 concentrations after SAH in rats.

Indexed as

Adrenergic beta-2 Receptor AntagonistsAdrenergic beta-AntagonistsAnimalsButoxamineDisease Models, AnimalInflammation MediatorsInterleukin-6MaleMetoprololNeuroprotective AgentsPropranololRatsRats, Sprague-DawleySubarachnoid HemorrhageTime FactorsTumor Necrosis Factor-alphaAdrenergic beta-2 Receptor AntagonistsAdrenergic beta-AntagonistsButoxamineInflammation MediatorsInterleukin-6MetoprololNeuroprotective AgentsPropranololTumor Necrosis Factor-alpha

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Registered trials

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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.