ArticleBiology direct2023
Spinal apolipoprotein E is involved in inflammatory pain via regulating lipid metabolism and glial activation in the spinal dorsal horn.
Article in Biology direct, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.
What it found
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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.
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.
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Who cites it
5 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.
- A GWAS Meta-meta-analysis and In-depth Silico Pharmacogenomic Investigations in Identification of APOE and Other Genes Associated with Pain, Anti-inflammatory, and Immunomodulating Agents in Opioid Use Disorder (OUD) Derived from 14.91 M Subjects.Cellular and molecular neurobiology · 2025Pooled it
- Neuropathic Pain Comorbid Cognitive Impairment and Vitamin D: A Narrative Review From Mechanisms to Clinical Management.Food science & nutrition · 2026Review
- Metabolite-neuro-immune relay in chronic pain: spatial-temporal lactate, succinate and itaconate signalling as drivers of glial reprogramming and neuronal sensitisation.Frontiers in pharmacology · 2026Review
- Astrocytic spermidine insufficiency contributes to enhanced pain sensitivity associated with ApoE4.The journal of headache and pain · 2025Article
- DNMT3a Downregulation Ttriggered Upregulation of GABAAdvanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
Corrections and comments
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Authors and funding
10 authors at 3 institutions in 1 country.
Funding
Abstract
introductionInflammation and nerve injury promote astrocyte activation, which regulates the development and resolution of pain, in the spinal dorsal horn. APOE regulates lipid metabolism and is predominantly expressed in the astrocytes. However, the effect of astrocytic APOE and lipid metabolism on spinal cellular function is unclear. This study aimed to investigate the effect of spinal Apoe on spinal cellular functions using the complete Freund's adjuvant (CFA)-induced inflammatory pain mouse model.
methodsAfter intraplantar injection of CFA, we assessed pain behaviors in C57BL6 and Apoe knockout (Apoe
resultsThe Apoe levels were markedly upregulated at 2 h and on days 1 and 3 post-CFA treatment. Apoe was exclusively expressed in the astrocytes. Apoe
conclusionsApoe deficiency altered lipid metabolism in astrocytes, exerting regulatory effects on immune response, astrocyte activation, and neuronal activity and consequently disrupting the maintenance of inflammatory pain after peripheral inflammation. Targeting APOE is a potential anti-nociception and anti-inflammatory strategy.
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Registered trials
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.