ArticleHeadache2022
Migraine and peripheral pain models show differential alterations in neuronal complexity.
Article in Headache, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.
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Who cites it
10 citing papers in PubMed, 1 synthesis or guideline pooled it, 20 citations in OpenAlex.
- Pooled it
- Chronic stress increases the susceptibility to chronic vulvar pain following acute vulvar inflammation in a preclinical model of vulvodynia.Molecular brain · 2026Article
- Mitochondrial dysfunction in the spinal cord contributes to peripheral hypersensitivity in a nitroglycerin-induced migraine model.Journal of translational medicine · 2026Article
- Causal Relationship Between Circulating Inflammatory Cytokines and the Risk of Trigeminal Neuralgia: A Mendelian Randomization Study.Brain and behavior · 2025Article
- Article
- Histone deacetylase inhibitor decreases hyperalgesia in a mouse model of alcohol withdrawal-induced hyperalgesia.Alcohol, clinical & experimental research · 2024Article
- Progesterone Receptor Activation Regulates Sensory Sensitivity and Migraine Susceptibility.The journal of pain · 2024Article
- Article
- Serum tau protein elevation in migraine: a cross-sectional case-control study.The journal of headache and pain · 2023Article
- Migraine and peripheral pain models show differential alterations in neuronal complexity.Headache · 2022Article
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Authors and funding
9 authors at 2 institutions in 1 country.
Funding
Abstract
objectiveOur laboratory has recently shown that there is a decrease in neuronal complexity in head pain processing regions in mouse models of chronic migraine-associated pain and aura. Importantly, restoration of this neuronal complexity corresponds with anti-migraine effects of known and experimental pharmacotherapies. The objective of the current study was to expand this work and examine other brain regions involved with pain or emotional processing. We also investigated the generalizability of our findings by analyzing neuronal cytoarchitectural changes in a model of complex regional pain syndrome (CRPS), a peripheral pain disorder.
methodsWe used the nitroglycerin (NTG) model of chronic migraine-associated pain in which mice receive 10 mg/kg NTG every other day for 9 days. Cortical spreading depression (CSD), a physiological corelate of migraine aura, was evoked in anesthetized mice using KCl. CRPS was induced by tibial fracture followed by casting. Neuronal cytoarchitecture was visualized with Golgi stain and analyzed with Simple Neurite Tracer.
resultsIn the NTG model, we previously showed decreased neuronal complexity in the trigeminal nucleus caudalis (TNC) and periaqueductal gray (PAG). In contrast, we found increased neuronal complexity in the thalamus and no change in the amygdala or caudate putamen in this study. Following CSD, we observed decreased neuronal complexity in the PAG, in line with decreases in the somatosensory cortex and TNC reported with this model previously. In the CRPS model there was decreased neuronal complexity in the hippocampus, as reported by others; increased complexity in the PAG; and no change within the somatosensory cortex.
conclusionsCollectively these results demonstrate that alterations in neuronal complexity are a feature of both chronic migraine and chronic CRPS. However, each type of pain presents a unique cytoarchitectural signature, which may provide insight on how these pain states differentially transition from acute to chronic conditions.
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