Evidence map›Paper›PMID 33181581›Full record

ArticlePain2021

Hippocampus shape deformation: a potential diagnostic biomarker for chronic back pain in women.

Diane Reckziegel, Taha Abdullah, Binbin Wu, Bo Wu, Lejian Huang, Thomas J Schnitzer, A Vania Apkarian

Open access · greenAbstract readMulticenter Study
In one paragraph

Article in Pain, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.4field-weighted citation impact, top 18% 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

14 citing papers in PubMed, 26 citations in OpenAlex.

  1. Article
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  3. Article
  4. Review
  5. Review
  6. Article
  7. Article
  8. Shape deformations of the basal ganglia in patients with classical trigeminal neuralgia: a cross-sectional evaluation.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2022
    Article
  9. Article
  10. Article
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  12. Brain mechanisms of chronic pain: critical role of translational approach.Translational research : the journal of laboratory and clinical medicine · 2021
    Review
  13. Article
  14. 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 3 institutions in 2 countries.

Diane ReckziegelCenter for Chronic Pain and Drug Abuse, Northwestern University Feinberg School of Medicine, Chicago, IL, United States.
Taha AbdullahDepartment of Physiology, Northwestern University Feinberg School of Medicine, Chicago, IL, United States.
Binbin WuDepartments of Pain Medicine and.
Bo WuInformation, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China.
Lejian HuangCenter for Chronic Pain and Drug Abuse, Northwestern University Feinberg School of Medicine, Chicago, IL, United States.
Thomas J SchnitzerCenter for Chronic Pain and Drug Abuse, Northwestern University Feinberg School of Medicine, Chicago, IL, United States.
A Vania ApkarianCenter for Chronic Pain and Drug Abuse, Northwestern University Feinberg School of Medicine, Chicago, IL, United States.
Northwestern University · USPain and Rehabilitation Medicine · USWenzhou Medical University · CN

Funding

Rodent Behavior CoreP50DA044121 · NIDA · NORTHWESTERN UNIVERSITY AT CHICAGO · PI APKARIAN, APKAR VANIA · 2018 to 2022
$9.0M
Cortico-striatal plasticity in the transition to chronic painR01DE022746 · NIDCR · NORTHWESTERN UNIVERSITY AT CHICAGO · PI APKARIAN, APKAR VANIA · 2012 to 2016
$4.1M
Brain mechanisms for clinical placebo in chronic painR01AT007987 · NCCIH · NORTHWESTERN UNIVERSITY AT CHICAGO · PI APKARIAN, APKAR VANIA · 2013 to 2017
$3.4M
NCCIH NIH HHS R01 AT007987NIDA NIH HHS P50 DA044121NIDCR NIH HHS R01 DE022746
6 · The paper itself

Abstract

abstractSex differences in the quality and prevalence of chronic pain are manifold, with women generally presenting higher incidence and severity. Uncovering chronic pain-related sex differences inform neural mechanisms and may lead to novel treatment routes. In a multicenter morphological study (total n = 374), we investigated whether the shape of subcortical regions would reflect sex differences in back pain. Given the hormone-dependent functions of the hippocampus, and its role in the transition to chronic pain, this region constituted our primary candidate. We found that the anterior part of the left hippocampus (alHP) presented outer deformation in women with chronic back pain (CBP), identified in CBP in the United States (n = 77 women vs n = 78 men) and validated in a Chinese data set (n = 29 women vs n = 58 men with CBP, in contrast to n = 53 female and n = 43 male healthy controls). Next, we examined this region in subacute back pain who persisted with back pain a year later (SBPp; n = 18 women vs n = 18 men) and in a subgroup with persistent back pain for 3 years. Weeks after onset of back pain, there was no deformation within alHP, but at 1 and 3 years women exhibited a trend for outer deformation. The alHP partly overlapped with the subiculum and entorhinal cortex, whose functional connectivity, in healthy subjects, was associated with emotional and episodic memory related terms (Neurosynth, reverse inference). These findings suggest that in women the alHP undergoes anatomical changes with pain persistence, highlighting sexually dimorphic involvement of emotional and episodic memory-related circuitry with chronic pain.

Indexed as

Chronic PainMagnetic Resonance ImagingBack PainBiomarkersFemaleHippocampusHumansMaleBiomarkers

Identifiers

PMID33181581
PMCPMC8049947
OpenAlexW3102577981

What OpenQuestion holds

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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.