ArticlePain2017
Neuropathic pain-induced enhancement of spontaneous and pain-evoked neuronal activity in the periaqueductal gray that is attenuated by gabapentin.
Article in Pain, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
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.
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Who cites it
26 citing papers in PubMed, 53 citations in OpenAlex.
- Article
- Spared Nerve Injury Induces Long-Term and Brain Region-Specific Changes in Oligodendrocyte Density in Mice.European journal of pain (London, England) · 2026Article
- Distinct lateral hypothalamus GABAergic projections regulate sensory and affective dimensions of pain.Zoological research · 2026Article
- Spared nerve injury induces long-term and brain region-specific changes in oligodendrocyte density in mice.bioRxiv : the preprint server for biology · 2025Article
- Prenatal alcohol exposure promotes nerve injury-induced pathological pain following morphine treatment via NLRP3-mediated peripheral and central proinflammatory immune actions.Brain, behavior, and immunity · 2025Article
- Review
- Unraveling the complexity of human brain: Structure, function in healthy and disease states.Ageing research reviews · 2024Review
- Article
- Paclitaxel-Associated Mechanical Sensitivity and Neuroinflammation Are Sex-, Time-, and Site-Specific and Prevented through Cannabigerol Administration in C57Bl/6 Mice.International journal of molecular sciences · 2024Article
- Article
- Cell type-specific dissection of sensory pathways involved in descending modulation.Trends in neurosciences · 2023Review
- Principles of nociceptive coding in the anterior cingulate cortex.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- Persistent inflammation selectively activates opioid-sensitive phasic-firing neurons within the vlPAG.Journal of neurophysiology · 2023Article
- Measuring pain and nociception: Through the glasses of a computational scientist. Transdisciplinary overview of methods.Frontiers in network physiology · 2023Review
- Brain nuclei and neural circuits in neuropathic pain and brain modulation mechanisms of acupuncture: a review on animal-based experimental research.Frontiers in neuroscience · 2023Review
- Ventrolateral Periaqueductal Gray Astrocytes Regulate Nociceptive Sensation and Emotional Motivation in Diabetic Neuropathic Pain.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2022Article
- TRPV1: A Common Denominator Mediating Antinociceptive and Antiemetic Effects of Cannabinoids.International journal of molecular sciences · 2022Review
- Cellular and circuit diversity determines the impact of endogenous opioids in the descending pain modulatory pathway.Frontiers in systems neuroscience · 2022Review
- Neurotropin alleviates rat osteocarcinoma pain via PIranian journal of basic medical sciences · 2021Article
- Activation of CamKIIα expressing neurons on ventrolateral periaqueductal gray improves behavioral hypersensitivity and thalamic discharge in a trigeminal neuralgia rat model.The journal of headache and pain · 2021Article
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
Neuropathic pain is a debilitating pathological condition that is poorly understood. Recent evidence suggests that abnormal central processing occurs during the development of neuropathic pain induced by the cancer chemotherapeutic agent, paclitaxel. Yet, it is unclear what role neurons in supraspinal pain network sites, such as the periaqueductal gray, play in altered behavioral sensitivity seen during chronic pain conditions. To elucidate these mechanisms, we studied the spontaneous and thermally evoked firing patterns of ventrolateral periaqueductal gray (vlPAG) neurons in awake-behaving rats treated with paclitaxel to induce neuropathic pain. In the present study, vlPAG neurons in naive rats exhibited either excitatory, inhibitory, or neutral responses to noxious thermal stimuli, as previously observed. However, after development of behavioral hypersensitivity induced by the chemotherapeutic agent, paclitaxel, vlPAG neurons displayed increased neuronal activity and changes in thermal pain-evoked neuronal activity. This involved elevated levels of spontaneous firing and heightened responsiveness to nonnoxious stimuli (allodynia) as well as noxious thermal stimuli (hyperalgesia) as compared with controls. Furthermore, after paclitaxel treatment, only excitatory neuronal responses were observed for both nonnoxious and noxious thermal stimuli. Systemic administration of gabapentin, a nonopioid analgesic, induced significant dose-dependent decreases in the elevated spontaneous and thermally evoked vlPAG neuronal firing to both nonnoxious and noxious thermal stimuli in rats exhibiting neuropathic pain, but not in naive rats. Thus, these results show a strong correlation between behavioral hypersensitivity to thermal stimuli and increased firing of vlPAG neurons in allodynia and hyperalgesia that occur in this neuropathic pain model.
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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.