Evidence map›Paper›PMID 29754288›Full record

ArticleDiabetologia2018

The impact of hypoglycaemia awareness status on regional brain responses to acute hypoglycaemia in men with type 1 diabetes.

Joel T Dunn, Pratik Choudhary, Ming Ming Teh, Ian Macdonald, Katharine F Hunt, Paul K Marsden, Stephanie A Amiel

Open access · hybridAbstract read
In one paragraph

Article in Diabetologia, 2018. 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
2.0field-weighted citation impact, top 13% 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

11 citing papers in PubMed, 23 citations in OpenAlex.

  1. Trial
  2. Trial
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  4. Article
  5. Review
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  7. Review
  8. Altered functional connectivity during hypoglycaemia in type 1 diabetes.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2022
    Article
  9. Article
  10. Observational
  11. Hypoglycemic thalamic activation in type 1 diabetes is associated with preserved symptoms despite reduced epinephrine.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2020
    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

7 authors at 4 institutions in 2 countries.

Joel T DunnDivision of Imaging Sciences and Biomedical Engineering, King's College London, London, UK.
Pratik ChoudharyDiabetes Research Group, King's College London, King's College Hospital Campus, Weston Education Centre, 10 Cutcombe Road, London, SE5 9RJ, UK.
Ming Ming TehDiabetes Research Group, King's College London, King's College Hospital Campus, Weston Education Centre, 10 Cutcombe Road, London, SE5 9RJ, UK.
Ian MacdonaldSchool of Life Sciences, University of Nottingham, Nottingham, UK.
Katharine F HuntDiabetes Research Group, King's College London, King's College Hospital Campus, Weston Education Centre, 10 Cutcombe Road, London, SE5 9RJ, UK.
Paul K MarsdenDivision of Imaging Sciences and Biomedical Engineering, King's College London, London, UK.
Stephanie A AmielDiabetes Research Group, King's College London, King's College Hospital Campus, Weston Education Centre, 10 Cutcombe Road, London, SE5 9RJ, UK. stephanie.amiel@kcl.ac.uk.
King's College London · GBKings Health Partners · GBKing's College Hospital · GBUniversity of Nottingham · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aims/hypothesisImpaired awareness of hypoglycaemia (IAH) in type 1 diabetes increases the risk of severe hypoglycaemia sixfold and can be resistant to intervention. We explored the impact of IAH on central responses to hypoglycaemia to investigate the mechanisms underlying barriers to therapeutic intervention.

methodsWe conducted [

resultsHypoglycaemia with HA was associated with increased activation in brain regions including the thalamus, insula, globus pallidus (GP), anterior cingulate cortex (ACC), orbital cortex, dorsolateral frontal (DLF) cortex, angular gyrus and amygdala; deactivation occurred in the temporal and parahippocampal regions. IAH was associated with reduced catecholamine and symptom responses to hypoglycaemia vs HA (incremental AUC: autonomic scores, 26.2 ± 35.5 vs 422.7 ± 237.1; neuroglycopenic scores, 34.8 ± 88.8 vs 478.9 ± 311.1; both p < 0.002). There were subtle differences (p < 0.005, k ≥ 50 voxels) in brain activation at hypoglycaemia, including early differences in the right central operculum, bilateral medial orbital (MO) cortex, and left posterior DLF cortex, with additional differences in the ACC, right GP and post- and pre-central gyri in established hypoglycaemia, and lack of deactivation in temporal regions in established hypoglycaemia. CONCLUSIONS/

interpretationDifferences in activation in the post- and pre-central gyri may be expected in people with reduced subjective responses to hypoglycaemia. Alterations in the activity of regions involved in the drive to eat (operculum), emotional salience (MO cortex), aversion (GP) and recall (temporal) suggest differences in the perceived importance and urgency of responses to hypoglycaemia in IAH compared with HA, which may be key to the persistence of the condition.

Indexed as

AdultAwarenessBlood GlucoseBody Mass IndexBrainDiabetes Mellitus, Type 1HumansHypoglycemiaMaleMiddle AgedNeuroimagingPositron-Emission TomographyYoung AdultBlood GlucoseCounterregulationHypoglycaemiaImpaired awareness of hypoglycaemiaNeuroimagingPositron emission tomographyType 1 diabetes

Identifiers

PMID29754288
PMCPMC6445483
OpenAlexW2799801983

What OpenQuestion holds

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LicenceCC BY
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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.