{"title":"帕金森病患者使用抗帕金森药物调节条件疼痛的变化","authors":"Eiichirou Urasaki , Yasushi Miyagi , Junji Kishimoto","doi":"10.1016/j.ensci.2025.100574","DOIUrl":null,"url":null,"abstract":"<div><h3>Objectives</h3><div>Patients with Parkinson's disease (PD) highly complain of pain, probably due to the lowered pain threshold caused by dopamine deficiency. Nonetheless, only a few studies have investigated the effects of anti-PD medications on “pain inhibits pain” ability. This study aimed to evaluate conditioned pain modulation (CPM) using the cutaneous silent period (CSP) and the numerical rating scale (NRS) and to investigate the effect of anti-PD medications on CPM.</div></div><div><h3>Materials and methods</h3><div>The CSP was recorded in 40 patients with PD under drug-on and drug-off conditions. Changes in the CSP elicited by electrical test stimulation and in the NRS when the patients experienced pain with cold pressure as a conditioned stimulus were assessed. A shortened CSP duration or reduced CSP score due to cold pressure were interpreted as objective CPM responses.</div></div><div><h3>Results</h3><div>The CSP latency was analyzed in 22 patients when the electromyographic contamination in the CSP waveform was low. The CSP duration shortening during cold pressure was significantly greater under the drug-on condition than under the drug-off condition. The change in CSP duration exhibited a significant correlation with the change in the NRS scores. CSP score analysis was performed on 18 patients in whom latency analysis was difficult owing to electromyographic contamination. In the drug-on state, conditioned cold-pressure pain significantly decreased the CSP score.</div></div><div><h3>Conclusions</h3><div>Dynamic changes in the CSP caused by cold pressure in patients with PD suggest that anti-PD medications may enhance CPM ability.</div></div>","PeriodicalId":37974,"journal":{"name":"eNeurologicalSci","volume":"40 ","pages":"Article 100574"},"PeriodicalIF":0.0000,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Changes in conditioned pain modulation using anti-Parkinson drugs in patients with Parkinson's disease\",\"authors\":\"Eiichirou Urasaki , Yasushi Miyagi , Junji Kishimoto\",\"doi\":\"10.1016/j.ensci.2025.100574\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><h3>Objectives</h3><div>Patients with Parkinson's disease (PD) highly complain of pain, probably due to the lowered pain threshold caused by dopamine deficiency. Nonetheless, only a few studies have investigated the effects of anti-PD medications on “pain inhibits pain” ability. This study aimed to evaluate conditioned pain modulation (CPM) using the cutaneous silent period (CSP) and the numerical rating scale (NRS) and to investigate the effect of anti-PD medications on CPM.</div></div><div><h3>Materials and methods</h3><div>The CSP was recorded in 40 patients with PD under drug-on and drug-off conditions. Changes in the CSP elicited by electrical test stimulation and in the NRS when the patients experienced pain with cold pressure as a conditioned stimulus were assessed. A shortened CSP duration or reduced CSP score due to cold pressure were interpreted as objective CPM responses.</div></div><div><h3>Results</h3><div>The CSP latency was analyzed in 22 patients when the electromyographic contamination in the CSP waveform was low. The CSP duration shortening during cold pressure was significantly greater under the drug-on condition than under the drug-off condition. The change in CSP duration exhibited a significant correlation with the change in the NRS scores. CSP score analysis was performed on 18 patients in whom latency analysis was difficult owing to electromyographic contamination. In the drug-on state, conditioned cold-pressure pain significantly decreased the CSP score.</div></div><div><h3>Conclusions</h3><div>Dynamic changes in the CSP caused by cold pressure in patients with PD suggest that anti-PD medications may enhance CPM ability.</div></div>\",\"PeriodicalId\":37974,\"journal\":{\"name\":\"eNeurologicalSci\",\"volume\":\"40 \",\"pages\":\"Article 100574\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2025-07-14\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"eNeurologicalSci\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2405650225000280\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"Neuroscience\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"eNeurologicalSci","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2405650225000280","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Neuroscience","Score":null,"Total":0}
Changes in conditioned pain modulation using anti-Parkinson drugs in patients with Parkinson's disease
Objectives
Patients with Parkinson's disease (PD) highly complain of pain, probably due to the lowered pain threshold caused by dopamine deficiency. Nonetheless, only a few studies have investigated the effects of anti-PD medications on “pain inhibits pain” ability. This study aimed to evaluate conditioned pain modulation (CPM) using the cutaneous silent period (CSP) and the numerical rating scale (NRS) and to investigate the effect of anti-PD medications on CPM.
Materials and methods
The CSP was recorded in 40 patients with PD under drug-on and drug-off conditions. Changes in the CSP elicited by electrical test stimulation and in the NRS when the patients experienced pain with cold pressure as a conditioned stimulus were assessed. A shortened CSP duration or reduced CSP score due to cold pressure were interpreted as objective CPM responses.
Results
The CSP latency was analyzed in 22 patients when the electromyographic contamination in the CSP waveform was low. The CSP duration shortening during cold pressure was significantly greater under the drug-on condition than under the drug-off condition. The change in CSP duration exhibited a significant correlation with the change in the NRS scores. CSP score analysis was performed on 18 patients in whom latency analysis was difficult owing to electromyographic contamination. In the drug-on state, conditioned cold-pressure pain significantly decreased the CSP score.
Conclusions
Dynamic changes in the CSP caused by cold pressure in patients with PD suggest that anti-PD medications may enhance CPM ability.
期刊介绍:
eNeurologicalSci provides a medium for the prompt publication of original articles in neurology and neuroscience from around the world. eNS places special emphasis on articles that: 1) provide guidance to clinicians around the world (Best Practices, Global Neurology); 2) report cutting-edge science related to neurology (Basic and Translational Sciences); 3) educate readers about relevant and practical clinical outcomes in neurology (Outcomes Research); and 4) summarize or editorialize the current state of the literature (Reviews, Commentaries, and Editorials). eNS accepts most types of manuscripts for consideration including original research papers, short communications, reviews, book reviews, letters to the Editor, opinions and editorials. Topics considered will be from neurology-related fields that are of interest to practicing physicians around the world. Examples include neuromuscular diseases, demyelination, atrophies, dementia, neoplasms, infections, epilepsies, disturbances of consciousness, stroke and cerebral circulation, growth and development, plasticity and intermediary metabolism. The fields covered may include neuroanatomy, neurochemistry, neuroendocrinology, neuroepidemiology, neurogenetics, neuroimmunology, neuroophthalmology, neuropathology, neuropharmacology, neurophysiology, neuropsychology, neuroradiology, neurosurgery, neurooncology, neurotoxicology, restorative neurology, and tropical neurology.