Evidence map›Paper›PMID 8910195›Full record

ArticleThe Journal of physiology1996

The mechanisms controlling physiologically stimulated changes in rat brain glucose and lactate: a microdialysis study.

A E Fray, R J Forsyth, M G Boutelle, M Fillenz

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of physiology, 1996. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
6.1field-weighted citation impact, top 3% 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

23 citing papers in PubMed, 123 citations in OpenAlex.

  1. Observational
  2. Article
  3. Article
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  5. Article
  6. Article
  7. Article
  8. Review
  9. Is L-lactate a novel signaling molecule in the brain?Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2015
    Review
  10. Article
  11. Diffusion of D-glucose measured in the cytosol of a single astrocyte.Cellular and molecular life sciences : CMLS · 2013
    Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Cellular mechanisms of brain energy metabolism and their relevance to functional brain imaging.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 1999
    Review
  19. An increase in lactate output by brain tissue serves to meet the energy needs of glutamate-activated neurons.The Journal of neuroscience : the official journal of the Society for Neuroscience · 1999
    Article
  20. 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

4 authors at 1 institution in 1 country.

A E FrayMRC Neurochemical Pathology Unit, Newcastle General Hospital, Newcastle upon Tyne, UK.
R J Forsyth
M G Boutelle
M Fillenz
North Tyneside General Hospital · GB

Funding

Wellcome Trust
6 · The paper itself

Abstract

1. This study is concerned with the supply of metabolic substrates for neuronal metabolism. Experiments were carried out to investigate whether mechanisms demonstrated in cultured astrocytes also occurred in vivo; these were cAMP-mediated breakdown of glycogen and glutamate uptake-stimulated release of lactate. 2. In vivo microdialysis was used in freely moving rats. Lactate and glucose in the dialysate were assayed using enzyme-based on-line assays. Drugs were given locally through the dialysis probe. Regional cerebral blood flow was measured using the hydrogen clearance method. 3. There was an increase in dialysate glucose in response to the beta-adrenoceptor agonist isoprenaline and to 8-bromo-cAMP, an analogue of cAMP, the second messenger of beta-adrenoceptor stimulation. The effect of isoprenaline was blocked by the antagonist propranolol. Isoprenaline had no effect on dialysate lactate, which was increased by the glutamate uptake blocker beta-D,L-threohydroxyaspartate (THA). 4. Physiological stimulation of neuronal activity produced an increase in both lactate and glucose. The increase in lactate was depressed in the presence of THA but was unaffected by propranolol. The increase in glucose was blocked by propranolol. Regional cerebral blood flow was increased by physiological stimulation but was unaffected by propranolol. 5. These results demonstrate that physiologically stimulated increases in glucose and lactate in the brain are mediated by different mechanisms.

Indexed as

Adrenergic beta-AgonistsAdrenergic beta-AntagonistsAnimalsAspartic AcidAstrocytesBrain ChemistryCerebrovascular CirculationElectrodes, ImplantedGlucoseGlycogenHydrogen-Ion ConcentrationIsoproterenolLactic AcidMaleMicrodialysisPropranolol3-hydroxyaspartic acidAdrenergic beta-AgonistsAdrenergic beta-AntagonistsAspartic AcidGlucoseGlycogenIsoproterenolLactic AcidPropranolol

Identifiers

PMID8910195
PMCPMC1160823
OpenAlexW2054897143

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.