Evidence map›Paper›PMID 31544606›Full record

ArticlePhilosophical transactions of the Royal Society of London. Series B, Biological sciences2019

Adaptive mechanisms driving maladaptive pain: how chronic ongoing activity in primary nociceptors can enhance evolutionary fitness after severe injury.

Edgar T Walters

Open access · bronzeAbstract read
In one paragraph

Article in Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
3.3field-weighted citation impact, top 7% 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

27 citing papers in PubMed, 55 citations in OpenAlex.

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  13. Differential behavioral response to predator odor in neuropathic pain in mice.Frontiers in pain research (Lausanne, Switzerland) · 2023
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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

1 author at 1 institution in 1 country.

Edgar T WaltersDepartment of Integrative Biology and Pharmacology, McGovern Medical School at UTHealth, 6431 Fannin Street, Houston, TX 77030, USA.
The University of Texas Health Science Center at Houston · US

Funding

Mechanisms of cAMP signaling that drive spontaneous activity in nociceptorsR01NS091759 · NINDS · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI Carmen W. Dessauer, EDGAR T. WALTERS · 2015 to 2026
$4.9M
Mechanisms in Primary Nociceptors that Drive Ongoing Activity and Ongoing PainR01NS111521 · NINDS · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI WALTERS, EDGAR T., ZHU, MICHAEL X · 2019 to 2023
$2.1M
NINDS NIH HHS R01 NS091759NINDS NIH HHS R01 NS111521
6 · The paper itself

Abstract

Chronic pain is considered maladaptive by clinicians because it provides no apparent protective or recuperative benefits. Similarly, evolutionary speculations have assumed that chronic pain represents maladaptive or evolutionarily neutral dysregulation of acute pain mechanisms. By contrast, the present hypothesis proposes that chronic pain can be driven by mechanisms that evolved to reduce increased vulnerability to attack from predators and aggressive conspecifics, which often target prey showing physical impairment after severe injury. Ongoing pain and anxiety persisting long after severe injury continue to enhance vigilance and behavioural caution, decreasing the heightened vulnerability to attack that results from motor impairment and disfigurement, thereby increasing survival and reproduction (fitness). This hypothesis is supported by evidence of animals surviving and reproducing after traumatic amputations, and by complex specializations that enable primary nociceptors to detect local and systemic signs of injury and inflammation, and to maintain low-frequency discharge that can promote ongoing pain indefinitely. Ongoing activity in nociceptors involves intricate electrophysiological and anatomical specializations, including inducible alterations in the expression of ion channels and receptors that produce persistent hyperexcitability and hypersensitivity to chemical signals of injury. Clinically maladaptive chronic pain may sometimes result from the recruitment of this powerful evolutionary adaptation to severe bodily injury. This article is part of the Theo Murphy meeting issue 'Evolution of mechanisms and behaviour important for pain'.

Indexed as

Biological EvolutionGenetic FitnessAdaptation, PhysiologicalAnimalsNociceptorsPainchronic painhypervigilanceNav1.8neuronal plasticitypredationspontaneous activity

Identifiers

PMID31544606
PMCPMC6790390
OpenAlexW2973354953

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.