Evidence map›Paper›PMID 23968221›Full record

ArticleJournal of neurotrauma2013

Lactate uptake by the injured human brain: evidence from an arteriovenous gradient and cerebral microdialysis study.

Ibrahim Jalloh, Adel Helmy, Richard J Shannon, Clare N Gallagher, David K Menon, Keri L H Carpenter, Peter J Hutchinson

Open access · hybridAbstract read
In one paragraph

Article in Journal of neurotrauma, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed, 1 pooled it
4.7field-weighted citation impact, top 5% 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

44 citing papers in PubMed, 1 synthesis or guideline pooled it, 67 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Review
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  6. Review
  7. Neuroprotective effects of lactate and ketone bodies in acute brain injury.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2024
    Review
  8. Tracing the path of disruption:CNS neuroscience & therapeutics · 2024
    Review
  9. Review
  10. Article
  11. Review
  12. Review
  13. Peri-anastomotic microdialysis lactate assessment after esophagectomy.Esophagus : official journal of the Japan Esophageal Society · 2021
    Article
  14. Article
  15. Neuroprotective role of lactate in rat neonatal hypoxia-ischemia.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2021
    Article
  16. Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 2 countries.

Ibrahim Jalloh1 Division of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge , Cambridge, United Kingdom .
Adel Helmy
Richard J Shannon
Clare N Gallagher
David K Menon
Keri L H Carpenter
Peter J Hutchinson
University of Cambridge · GBUniversity of Calgary · CA

Funding

Medical Research Council G0001354Medical Research Council G0600986Medical Research Council G0600986 ID79068Medical Research Council G080225Medical Research Council G0802251Medical Research Council G1002277Medical Research Council G1002277 ID98489Medical Research Council G9439390
6 · The paper itself

Abstract

Lactate has been regarded as a waste product of anaerobic metabolism of glucose. Evidence also suggests, however, that the brain may use lactate as an alternative fuel. Our aim was to determine the extent of lactate uptake from the circulation into the brain after traumatic brain injury (TBI) and to compare it with levels of lactate in the brain extracellular fluid. We recruited 19 patients with diffuse TBI, monitored with cerebral microdialysis and jugular bulb catheters. Serial arteriovenous (AV) concentration differences of glucose and lactate were calculated from arterial and jugular blood samples, providing a measure of net uptake or export by the brain. Microdialysis was used to measure brain extracellular glucose and lactate. In 17/19 patients studied for 5 days post-injury, there were periods of net lactate uptake into the brain, most frequently on day 3 after injury. Brain microdialysate lactate had a median (interquartile range [IQR]) concentration of 2.5 (1.5-3.2) mmol/L during lactate uptake and 2.2 (1.7-3.0) mmol/L during lactate export. Lactate uptake into the brain occurred at a median (IQR) arterial lactate concentration of 1.6 (1.0-2.2) mmol/L. Lactate uptake was associated with significantly higher AV difference in glucose values with a median (IQR) of 0.4 (0.03-0.7) mmol/L during uptake and 0.1 (-0.2-0.3) mmol/L during lactate export (Mann-Whitney U p=0.003). Despite relatively high brain lactate compared with arterial lactate concentrations, the brain appears to up-regulate lactate transport into the brain after TBI. This may serve to satisfy greater demands for energy substrate from the brain after TBI.

Indexed as

AdolescentAdultBlood GlucoseBrainBrain InjuriesCerebral ArteriesCerebrovascular CirculationFemaleHumansJugular VeinsLactic AcidMaleMicrodialysisMiddle AgedBlood GlucoseLactic Acid

Identifiers

PMID23968221
PMCPMC3868386
OpenAlexW2081625820

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.