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Mao P, Hu H, Li R, Zhang Y, Zhang Y, Li Y, Fan B. Circadian changes of autonomic function in patients with zoster-associated pain: A heart rate variability analysis. Brain Behav 2024; 14:e3489. [PMID: 38688880 PMCID: PMC11061204 DOI: 10.1002/brb3.3489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 03/25/2024] [Accepted: 04/04/2024] [Indexed: 05/02/2024] Open
Abstract
OBJECTIVE To investigate the circadian changes of the autonomic function in patients with zoster-associated pain (ZAP). METHODS A total of 37 patients with ZAP from April 2022 to October 2022 were enrolled as the observation group, and 37 normal volunteers at the same time were selected as the control group. All participants were required to wear a 24-h Holter, which was used to compare the heart rate variability (HRV) between the two groups. HRV analysis involved time- and frequency-domain parameters. RESULTS There was no statistically significant difference in general information between two groups. Patients with ZAP had an increased mean heart rate and decreased the standard deviation of normal-to-normal (SDNN) R-R interval, the root mean square of the differences (RMSSD) in successive RR interval, low frequency (LF), and high frequency (HF) compared with control groups in all periods (p < .05). The ratio of LF/HF between two groups had no significant difference (p = .245). SDNN had no significant difference between day and night in the control group (p > .05), whereas SDNN of ZAP patients in night period was reduced than that in day period (p < .001). The level of RMSSD during the day was lower than those at night in the control group (p < .05), whereas no significant difference of RMSSD between two periods was observed in patients with ZAP (p > .05). CONCLUSION The results of this study indicated that ZAP contributes to the decline of autonomic nervous system (ANS) function, especially parasympathetic components. The patients with ZAP lost parasympathetic advantage and had a worse ANS during the night.
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Affiliation(s)
- Peng Mao
- Department of Pain MedicineChina‐Japan Friendship HospitalBeijingChina
| | - Hui‐Min Hu
- Graduate School of Beijing University of Chinese MedicineBeijingChina
| | - Ran Li
- Graduate School of Beijing University of Chinese MedicineBeijingChina
| | - Yuan‐Jing Zhang
- Graduate School of Beijing University of Chinese MedicineBeijingChina
| | - Yi Zhang
- Department of Pain MedicineChina‐Japan Friendship HospitalBeijingChina
| | - Yi‐Fan Li
- Department of Pain MedicineChina‐Japan Friendship HospitalBeijingChina
| | - Bi‐Fa Fan
- Department of Pain MedicineChina‐Japan Friendship HospitalBeijingChina
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Wang S, Ko CC, Chung MK. Nociceptor mechanisms underlying pain and bone remodeling via orthodontic forces: toward no pain, big gain. FRONTIERS IN PAIN RESEARCH 2024; 5:1365194. [PMID: 38455874 PMCID: PMC10917994 DOI: 10.3389/fpain.2024.1365194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 02/12/2024] [Indexed: 03/09/2024] Open
Abstract
Orthodontic forces are strongly associated with pain, the primary complaint among patients wearing orthodontic braces. Compared to other side effects of orthodontic treatment, orthodontic pain is often overlooked, with limited clinical management. Orthodontic forces lead to inflammatory responses in the periodontium, which triggers bone remodeling and eventually induces tooth movement. Mechanical forces and subsequent inflammation in the periodontium activate and sensitize periodontal nociceptors and produce orthodontic pain. Nociceptive afferents expressing transient receptor potential vanilloid subtype 1 (TRPV1) play central roles in transducing nociceptive signals, leading to transcriptional changes in the trigeminal ganglia. Nociceptive molecules, such as TRPV1, transient receptor potential ankyrin subtype 1, acid-sensing ion channel 3, and the P2X3 receptor, are believed to mediate orthodontic pain. Neuropeptides such as calcitonin gene-related peptides and substance P can also regulate orthodontic pain. While periodontal nociceptors transmit nociceptive signals to the brain, they are also known to modulate alveolar bone remodeling in periodontitis. Therefore, periodontal nociceptors and nociceptive molecules may contribute to the modulation of orthodontic tooth movement, which currently remains undetermined. Future studies are needed to better understand the fundamental mechanisms underlying neuroskeletal interactions in orthodontics to improve orthodontic treatment by developing novel methods to reduce pain and accelerate orthodontic tooth movement-thereby achieving "big gains with no pain" in clinical orthodontics.
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Affiliation(s)
- Sheng Wang
- Division of Orthodontics, College of Dentistry, The Ohio State University, Columbus, OH, United States
| | - Ching-Chang Ko
- Division of Orthodontics, College of Dentistry, The Ohio State University, Columbus, OH, United States
| | - Man-Kyo Chung
- Department of Neural and Pain Sciences, School of Dentistry, University of Maryland Baltimore, Baltimore, MD, United States
- Center to Advance Chronic Pain Research, University of Maryland Baltimore, Baltimore, MD, United States
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Lagatta DC, Fassini A, Terzian AL, Corrêa FMA, Resstel LBM. The medial prefrontal cortex and the cardiac baroreflex activity: physiological and pathological implications. Pflugers Arch 2023; 475:291-307. [PMID: 36695881 DOI: 10.1007/s00424-022-02786-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 12/16/2022] [Accepted: 12/25/2022] [Indexed: 01/26/2023]
Abstract
The cardiac baroreflex is an autonomic neural mechanism involved in the modulation of the cardiovascular system. It influences the heart rate and peripheral vascular resistance to preserve arterial blood pressure within a narrow variation range. This mechanism is mainly controlled by medullary nuclei located in the brain stem. However, supramedullary areas, such as the ventral portion of medial prefrontal cortex (vMPFC), are also involved. Particularly, the glutamatergic NMDA/NO pathway in the vMPFC can facilitate baroreflex bradycardic and tachycardic responses. In addition, cannabinoid receptors in this same area can reduce or increase those cardiac responses, possibly through alteration in glutamate release. This vMPFC network has been associated to cardiovascular responses during stressful situations. Recent results showed an involvement of glutamatergic, nitrergic, and endocannabinoid systems in the blood pressure and heart rate increases in animals after aversive conditioning. Consequently, baroreflex could be modified by the vMPFC neurotransmission during stressful situations, allowing necessary cardiovascular adjustments. Remarkably, some mental, neurological and neurodegenerative disorders can involve damage in the vMPFC, such as posttraumatic stress disorder, major depressive disorder, Alzheimer's disease, and neuropathic pain. These pathologies are also associated with alterations in glutamate/NO release and endocannabinoid functions along with baroreflex impairment. Thus, the vMPFC seems to play a crucial role on the baroreflex control, either during pathological or physiological stress-related responses. The study of baroreflex mechanism under such pathological view may be helpful to establish causality mechanisms for the autonomic and cardiovascular imbalance found in those conditions. It can explain in the future the reasons of the high cardiovascular risk some neurological and neurodegenerative disease patients undergo. Additionally, the present work offers insights on the possible contributions of vMPFC dysfunction on baroreflex alterations, which, in turn, may raise questions in what extent other brain areas may play a role in autonomic deregulation under such pathological situations.
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Affiliation(s)
- Davi C Lagatta
- Faculty of Pharmaceutical Sciences, Food and Nutrition, Federal University of Mato Grosso do Sul, MS, 79070-900, Campo Grande, Brazil
| | - Aline Fassini
- Department of Pharmacology, Medical School of Ribeirão Preto, University of São Paulo, Avenida Bandeirantes 3900, Ribeirão Preto, SP, 14090-900, Brazil
| | - Ana L Terzian
- Department of Pharmacology, Medical School of Ribeirão Preto, University of São Paulo, Avenida Bandeirantes 3900, Ribeirão Preto, SP, 14090-900, Brazil
| | - Fernando M A Corrêa
- Department of Pharmacology, Medical School of Ribeirão Preto, University of São Paulo, Avenida Bandeirantes 3900, Ribeirão Preto, SP, 14090-900, Brazil
| | - Leonardo B M Resstel
- Department of Pharmacology, Medical School of Ribeirão Preto, University of São Paulo, Avenida Bandeirantes 3900, Ribeirão Preto, SP, 14090-900, Brazil.
- Center for Interdisciplinary Research On Applied Neurosciences (NAPNA), Medical School of Ribeirão Preto, University of São Paulo (USP), Ribeirão Preto, Brazil.
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Tran HT, Kong Y, Talati A, Posada-Quintero H, Chon KH, Chen IP. The use of electrodermal activity in pulpal diagnosis and dental pain assessment. Int Endod J 2023; 56:356-368. [PMID: 36367715 PMCID: PMC10044487 DOI: 10.1111/iej.13868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 11/07/2022] [Accepted: 11/08/2022] [Indexed: 11/13/2022]
Abstract
AIMS To explore whether electrodermal activity (EDA) can serve as a complementary tool for pulpal diagnosis (Aim 1) and an objective metric to assess dental pain before and after local anaesthesia (Aim 2). METHODOLOGY A total of 53 subjects (189 teeth) and 14 subjects (14 teeth) were recruited for Aim 1 and Aim 2, respectively. We recorded EDA using commercially available devices, PowerLab and Galvanic Skin Response (GSR) Amplifier, in conjunction with cold and electric pulp testing (EPT). Participants rated their level of sensation on a 0-10 visual analogue scale (VAS) after each test. We recorded EPT-stimulated EDA activity before and after the administration of local anaesthesia for participants who required root canal treatment (RCT) due to painful pulpitis. The raw data were converted to the time-varying index of sympathetic activity (TVSymp), a sensitive and specific parameter of EDA. Statistical analysis was performed using Python 3.6 and its Scikit-post hoc library. RESULTS Electrodermal activity was upregulated by the stimuli of cold and EPT testing in the normal pulp. TVSymp signals were significantly increased in vital pulp compared to necrotic pulp by both cold test and EPT. Teeth that exhibited intensive sensitivity to cold with or without lingering pain had increased peak numbers of TVSymp than teeth with mild sensation to cold. Pre- and post-anaesthesia EDA activity and VAS scores were recorded in patients with painful pulpitis. Post-anaesthesia EDA signals were significantly lower compared to pre-anaesthesia levels. Approximately 71% of patients (10 of 14 patients) experienced no pain during treatment and reported VAS score of 0 or 1. The majority of patients (10 of 14) showed a reduction of TVSymp after the administration of anaesthesia. Two of three patients who experienced increased pain during RCT (post-treatment VAS > pre-treatment VAS) exhibited increased post-anaesthesia TVSymp. CONCLUSIONS Our data show promising results for using EDA in pulpal diagnosis and for assessing dental pain. Whilst our testing was limited to subjects who had adequate communication skills, our future goal is to be able to use this technology to aid in the endodontic diagnosis of patients who have limited communication ability.
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Affiliation(s)
- Hanh T Tran
- Department of Oral Health and Diagnostic Sciences, School of Dental Medicine, University of Connecticut Health, Farmington, Connecticut, USA
| | - Youngsun Kong
- Department of Biomedical Engineering, School of Engineering, University of Connecticut, Storrs, Connecticut, USA
| | - Ankur Talati
- Department of Oral Health and Diagnostic Sciences, School of Dental Medicine, University of Connecticut Health, Farmington, Connecticut, USA
| | - Hugo Posada-Quintero
- Department of Biomedical Engineering, School of Engineering, University of Connecticut, Storrs, Connecticut, USA
| | - Ki H Chon
- Department of Biomedical Engineering, School of Engineering, University of Connecticut, Storrs, Connecticut, USA
| | - I-Ping Chen
- Department of Oral Health and Diagnostic Sciences, School of Dental Medicine, University of Connecticut Health, Farmington, Connecticut, USA
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Zayan K, Aggarwal S, Felix E, Levitt R, Sarantopoulos K, Galor A. Transcutaneous Electrical Nerve Stimulation for the Long-Term Treatment of Ocular Pain. Neuromodulation 2020; 23:871-877. [PMID: 32196838 DOI: 10.1111/ner.13146] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 02/13/2020] [Accepted: 02/24/2020] [Indexed: 12/23/2022]
Abstract
PURPOSE Ocular pain is a debilitating condition that is challenging to treat as therapies that target the ocular surface are often ineffective. We previously reported a short-term reduction in ocular pain after one periocular transcutaneous electrical nerve stimulation (TENS) session. The current study aims to elucidate the long-term effect of TENS on ocular pain. MATERIALS AND METHODS Fourteen individuals with eye pain were identified as candidates for a TENS device (RS Medical, Vancouver) for home use after a successful trial in clinic between February 2018 and July 2019 at the Miami Veterans Administration Hospital or University of Miami. Ten of the 14 patients were included in this retrospective review, based on the inclusion of receiving and using the device for a minimum of three months. The median age of the ten patients was 47.5 years, range 32-73 years, and eight were male. The main outcome measures were 1) frequency of long-term integration of TENS into ocular pain management and 2) patient reported ocular pain intensity (0-10) pre- vs. post-treatment. RESULTS Patients reported an initial median use of the device 14.0 times per week and over time reducing the frequency to 3.0 times per week. All reported that the TENS unit was successfully incorporated into their ocular pain management routine for at least three months (median duration of use 6.5 months, range 3-14 months). Nine of ten patients reported subjective pain reduction with use of the TENS device at home. Overall, pain intensity decreased by approximately 27.4% (mean rank = 5.6, Z = -2.1, p = 0.02) post- vs. pre-treatment. No adverse events associated with TENS were reported in any patient. CONCLUSION Our preliminary data suggest that TENS can be integrated into the long-term management of ocular pain with improvements in overall pain intensity.
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Affiliation(s)
- Kristen Zayan
- Bascom Palmer Eye Institute, University of Miami, Miller School of Medicine, Miami, FL, USA
| | - Shruti Aggarwal
- Bascom Palmer Eye Institute, University of Miami, Miller School of Medicine, Miami, FL, USA
| | - Elizabeth Felix
- Physical Medicine and Rehabilitation, University of Miami, Miller School of Medicine, Miami, FL, USA
| | - Roy Levitt
- Department of Anesthesia, University of Miami, Miller School of Medicine, Miami, FL, USA
| | | | - Anat Galor
- Bascom Palmer Eye Institute, University of Miami, Miller School of Medicine, Miami, FL, USA.,Department of Ophthalmology, Miami Veterans Affairs Medical Center, Miami, FL, USA
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Bachmann P, Zhang X, Larra MF, Rebeck D, Schönbein K, Koch KP, Schächinger H. Validation of an automated bilateral feet cold pressor test. Int J Psychophysiol 2018; 124:62-70. [DOI: 10.1016/j.ijpsycho.2017.10.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 10/28/2017] [Accepted: 10/31/2017] [Indexed: 12/21/2022]
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Liao CD, Tsauo JY, Chen HC, Liou TH. Efficacy of Stellate Ganglion Blockade Applied with Light Irradiation: A Systemic Review and Meta-analysis. Am J Phys Med Rehabil 2017; 96:e97-e110. [PMID: 28118275 DOI: 10.1097/phm.0000000000000675] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE Stellate ganglion block has mostly been used to relieve symptoms of neuropathic pain; several potential complications have been reported. Noninvasive stellate ganglion block application using light irradiation (SG-LI) can be used as an alternative to conventional injection blockades. Based on the variety of application protocols among previous studies, it was needed to further identify the clinical efficacy of SG-LI in managing neuropathic pain or other disorders associated with sympathetic hyperactivity. DESIGN A comprehensive search of online databases was performed to identify experimental or observational studies reporting the efficacy of SG-LI in treating patients with disorders requiring sympatholytic management. The included studies were subjected to a meta-analysis and risk-of-bias assessment. RESULTS Twenty-one experimental studies with a Physiotherapy Evidence Database score of 6/10 and 5 observational studies with a Newcastle-Ottawa scale score of 7/9 were included in the analysis. A significant effect on pain relief favoring SG-LI was identified at a standard mean difference (SMD) of -2.05 [95% confidence interval (CI), -2.49 to -1.61; P < 0.00001]. Similar effects favoring SG-LI were found in peripheral blood flow (SMD, 1.26; 95% CI, 0.26-2.25; P = 0.01) and skin temperature (SMD, 1.31; 95% CI, 0.55, 2.08; P = 0.0007). CONCLUSIONS Stellate ganglion block application using light irradiation effectively relieves pain of various etiologies and successfully induces a sympatholytic response. Stellate ganglion block application using light irradiation may be a valuable addition to the contemporary pain management armamentarium.
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Affiliation(s)
- Chun-De Liao
- From the School and Graduate Institute of Physical Therapy, College of Medicine, National Taiwan University (C-DL, J-YT); and Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital (C-DL, H-CC, T-HL), Center for Evidence-Based Health Care, Shuang Ho Hospital (H-CC), Department of Physical Medicine and Rehabilitation, School of Medicine, College of Medicine (H-CC, T-HL), and Graduate Institute of Injury Prevention and Control (T-HL), Taipei Medical University, Taipei, Taiwan
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Benoliel R, Sharav Y, Haviv Y, Almoznino G. Tic, Triggering, and Tearing: From CTN to SUNHA. Headache 2017; 57:997-1009. [DOI: 10.1111/head.13040] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Accepted: 01/03/2017] [Indexed: 01/03/2023]
Affiliation(s)
- R. Benoliel
- Rutgers School of Dental Medicine; Rutgers State University of New Jersey; Newark NJ USA
| | - Y. Sharav
- Department of Oral Medicine, The Faculty of Dentistry; Hebrew University-Hadassah; Jerusalem Israel
| | - Y. Haviv
- Department of Oral Medicine, The Faculty of Dentistry; Hebrew University-Hadassah; Jerusalem Israel
| | - G. Almoznino
- Department of Oral Medicine, The Faculty of Dentistry; Hebrew University-Hadassah; Jerusalem Israel
- Department of Oral Medicine; Oral and Maxillofacial Center, Medical Corps, Israel Defense Forces; Tel-Hashomer Israel
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Liao CD, Tsauo JY, Liou TH, Chen HC, Rau CL. Efficacy of Noninvasive Stellate Ganglion Blockade Performed Using Physical Agent Modalities in Patients with Sympathetic Hyperactivity-Associated Disorders: A Systematic Review and Meta-Analysis. PLoS One 2016; 11:e0167476. [PMID: 27911934 PMCID: PMC5135105 DOI: 10.1371/journal.pone.0167476] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Accepted: 11/15/2016] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Stellate ganglion blockade (SGB) is mainly used to relieve symptoms of neuropathic pain in conditions such as complex regional pain syndrome and has several potential complications. Noninvasive SGB performed using physical agent modalities (PAMs), such as light irradiation and electrical stimulation, can be clinically used as an alternative to conventional invasive SGB. However, its application protocols vary and its clinical efficacy remains controversial. This study investigated the use of noninvasive SGB for managing neuropathic pain or other disorders associated with sympathetic hyperactivity. MATERIALS AND METHODS We performed a comprehensive search of the following online databases: Medline, PubMed, Excerpta Medica Database, Cochrane Library Database, Ovid MEDLINE, Europe PubMed Central, EBSCOhost Research Databases, CINAHL, ProQuest Research Library, Physiotherapy Evidence Database, WorldWideScience, BIOSIS, and Google Scholar. We identified and included quasi-randomized or randomized controlled trials reporting the efficacy of SGB performed using therapeutic ultrasound, transcutaneous electrical nerve stimulation, light irradiation using low-level laser therapy, or xenon light or linearly polarized near-infrared light irradiation near or over the stellate ganglion region in treating complex regional pain syndrome or disorders requiring sympatholytic management. The included articles were subjected to a meta-analysis and risk of bias assessment. RESULTS Nine randomized and four quasi-randomized controlled trials were included. Eleven trials had good methodological quality with a Physiotherapy Evidence Database (PEDro) score of ≥6, whereas the remaining two trials had a PEDro score of <6. The meta-analysis results revealed that the efficacy of noninvasive SGB on 100-mm visual analog pain score is higher than that of a placebo or active control (weighted mean difference, -21.59 mm; 95% CI, -34.25, -8.94; p = 0.0008). CONCLUSIONS Noninvasive SGB performed using PAMs effectively relieves pain of various etiologies, making it a valuable addition to the contemporary pain management armamentarium. However, this evidence is limited by the potential risk of bias.
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Affiliation(s)
- Chun-De Liao
- School and Graduate Institute of Physical Therapy, College of Medicine, National Taiwan University, Taipei, Taiwan
- Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
| | - Jau-Yih Tsauo
- School and Graduate Institute of Physical Therapy, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Tsan-Hon Liou
- Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Injury Prevention and Control, Taipei Medical University, Taipei, Taiwan
- Department of Physical Medicine and Rehabilitation, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Hung-Chou Chen
- Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
- Center for Evidence-Based Health Care, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
- Department of Physical Medicine and Rehabilitation, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chi-Lun Rau
- Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Injury Prevention and Control, Taipei Medical University, Taipei, Taiwan
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Melchior M, Poisbeau P, Gaumond I, Marchand S. Insights into the mechanisms and the emergence of sex-differences in pain. Neuroscience 2016; 338:63-80. [DOI: 10.1016/j.neuroscience.2016.05.007] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2016] [Revised: 05/01/2016] [Accepted: 05/05/2016] [Indexed: 12/19/2022]
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