Evidence map›Paper›PMID 37024573›Full record

ArticleNature neuroscience2023

Prefrontal engrams of long-term fear memory perpetuate pain perception.

Alina Stegemann, Sheng Liu, Oscar Andrés Retana Romero, Manfred Josef Oswald, Yechao Han, Carlo Antonio Beretta, Zheng Gan, Linette Liqi Tan, William Wisden, Johannes Gräff and 1 more

Erratum issuedAbstract read
In one paragraph

Article in Nature neuroscience, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
–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

28 citing papers in PubMed, 1 synthesis or guideline pooled it.

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  16. Mimicking opioid analgesia in cortical pain circuits.bioRxiv : the preprint server for biology · 2025
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors.

Alina Stegemann *Institute of Pharmacology, Heidelberg University, Heidelberg, Germany.ORCID http://orcid.org/0000-0003-0401-0698
Sheng Liu *Institute of Pharmacology, Heidelberg University, Heidelberg, Germany.ORCID http://orcid.org/0000-0003-4981-8551
Oscar Andrés Retana Romero *Institute of Pharmacology, Heidelberg University, Heidelberg, Germany.ORCID http://orcid.org/0000-0001-9223-7280
Manfred Josef OswaldInstitute of Pharmacology, Heidelberg University, Heidelberg, Germany.ORCID http://orcid.org/0000-0003-1547-747X
Yechao HanInstitute of Pharmacology, Heidelberg University, Heidelberg, Germany.
Carlo Antonio BerettaInstitute of Pharmacology, Heidelberg University, Heidelberg, Germany.
Zheng GanInstitute of Pharmacology, Heidelberg University, Heidelberg, Germany.
Linette Liqi TanInstitute of Pharmacology, Heidelberg University, Heidelberg, Germany.
William WisdenDepartment of Life Sciences, Faculty of Natural Sciences, Imperial College London, London, UK.ORCID http://orcid.org/0000-0003-4743-0334
Johannes GräffLaboratory of Neuroepigenetics, Brain Mind Institute, School of Life Sciences, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.ORCID http://orcid.org/0000-0002-3219-3578
Rohini KunerInstitute of Pharmacology, Heidelberg University, Heidelberg, Germany. rohini.kuner@pharma.uni-heidelberg.de.ORCID http://orcid.org/0000-0002-3333-9129

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A painful episode can lead to a life-long increase in an individual's experience of pain. Fearful anticipation of imminent pain could play a role in this phenomenon, but the neurobiological underpinnings are unclear because fear can both suppress and enhance pain. Here, we show in mice that long-term associative fear memory stored in neuronal engrams in the prefrontal cortex determines whether a painful episode shapes pain experience later in life. Furthermore, under conditions of inflammatory and neuropathic pain, prefrontal fear engrams expand to encompass neurons representing nociception and tactile sensation, leading to pronounced changes in prefrontal connectivity to fear-relevant brain areas. Conversely, silencing prefrontal fear engrams reverses chronically established hyperalgesia and allodynia. These results reveal that a discrete subset of prefrontal cortex neurons can account for the debilitating comorbidity of fear and chronic pain and show that attenuating the fear memory of pain can alleviate chronic pain itself.

Indexed as

Chronic PainAnimalsBrainFearHyperalgesiaMemory, Long-TermMicePain PerceptionPrefrontal Cortex

Identifiers

PMID37024573
PMCPMC10166861

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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.