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Linher-Melville K, Shah A, Singh G. Sex differences in neuro(auto)immunity and chronic sciatic nerve pain. Biol Sex Differ 2020; 11:62. [PMID: 33183347 PMCID: PMC7661171 DOI: 10.1186/s13293-020-00339-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 10/20/2020] [Indexed: 01/13/2023] Open
Abstract
Chronic pain occurs with greater frequency in women, with a parallel sexually dimorphic trend reported in sufferers of many autoimmune diseases. There is a need to continue examining neuro-immune-endocrine crosstalk in the context of sexual dimorphisms in chronic pain. Several phenomena in particular need to be further explored. In patients, autoantibodies to neural antigens have been associated with sensory pathway hyper-excitability, and the role of self-antigens released by damaged nerves remains to be defined. In addition, specific immune cells release pro-nociceptive cytokines that directly influence neural firing, while T lymphocytes activated by specific antigens secrete factors that either support nerve repair or exacerbate the damage. Modulating specific immune cell populations could therefore be a means to promote nerve recovery, with sex-specific outcomes. Understanding biological sex differences that maintain, or fail to maintain, neuroimmune homeostasis may inform the selection of sex-specific treatment regimens, improving chronic pain management by rebalancing neuroimmune feedback. Given the significance of interactions between nerves and immune cells in the generation and maintenance of neuropathic pain, this review focuses on sex differences and possible links with persistent autoimmune activity using sciatica as an example.
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Affiliation(s)
- Katja Linher-Melville
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada
- Michael G. DeGroote Institute for Pain Research and Care, McMaster University, Hamilton, Ontario, Canada
| | - Anita Shah
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Gurmit Singh
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada.
- Michael G. DeGroote Institute for Pain Research and Care, McMaster University, Hamilton, Ontario, Canada.
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McVeigh LG, Perugini AJ, Fehrenbacher JC, White FA, Kacena MA. Assessment, Quantification, and Management of Fracture Pain: from Animals to the Clinic. Curr Osteoporos Rep 2020; 18:460-470. [PMID: 32827293 PMCID: PMC7541703 DOI: 10.1007/s11914-020-00617-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
PURPOSE OF REVIEW Fractures are painful and disabling injuries that can occur due to trauma, especially when compounded with pathologic conditions, such as osteoporosis in older adults. It is well documented that acute pain management plays an integral role in the treatment of orthopedic patients. There is no current therapy available to completely control post-fracture pain that does not interfere with bone healing or have major adverse effects. In this review, we focus on recent advances in the understanding of pain behaviors post-fracture. RECENT FINDINGS We review animal models of bone fracture and the assays that have been developed to assess and quantify spontaneous and evoked pain behaviors, including the two most commonly used assays: dynamic weight bearing and von Frey testing to assess withdrawal from a cutaneous (hindpaw) stimulus. Additionally, we discuss the assessment and quantification of fracture pain in the clinical setting, including the use of numeric pain rating scales, satisfaction with pain relief, and other biopsychosocial factor measurements. We review how pain behaviors in animal models and clinical cases can change with the use of current pain management therapies. We conclude by discussing the use of pain behavioral analyses in assessing potential therapeutic treatment options for addressing acute and chronic fracture pain without compromising fracture healing. There currently is a lack of effective treatment options for fracture pain that reliably relieve pain without potentially interfering with bone healing. Continued development and verification of reliable measurements of fracture pain in both pre-clinical and clinical settings is an essential aspect of continued research into novel analgesic treatments for fracture pain.
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Affiliation(s)
- Luke G McVeigh
- Department of Orthopaedic Surgery, Indiana University School of Medicine, 1130 W. Michigan St, FH 115, Indianapolis, IN, 46202, USA
| | - Anthony J Perugini
- Department of Orthopaedic Surgery, Indiana University School of Medicine, 1130 W. Michigan St, FH 115, Indianapolis, IN, 46202, USA
| | - Jill C Fehrenbacher
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Fletcher A White
- Department of Anesthesia, Indiana University School of Medicine, Indianapolis, IN, USA
- Richard L. Roudebush VA Medical Center, Indianapolis, IN, USA
| | - Melissa A Kacena
- Department of Orthopaedic Surgery, Indiana University School of Medicine, 1130 W. Michigan St, FH 115, Indianapolis, IN, 46202, USA.
- Richard L. Roudebush VA Medical Center, Indianapolis, IN, USA.
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Jiang Q, Zhang R, Liu T. Effect of nalbuphine on patient controlled intravenous analgesia after radical resection of colon cancer. Oncol Lett 2020; 19:2533-2538. [PMID: 32194756 DOI: 10.3892/ol.2020.11259] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 09/11/2019] [Indexed: 01/31/2023] Open
Abstract
Effect of nalbuphine on patient-controlled intravenous analgesia (PCIA) after radical resection of colon cancer was explored. Retrospective analyses of 100 patients who underwent elective laparoscopic radical resection of colon cancer in Xiang Yang No. 1 People's Hospital, Hubei University of Medicine from June 2014 to December 2016 were made. Forty-seven patients were treated with nalbuphine as experimental group and 53 cases were treated with morphine as control group. All patients received PCIA after surgery. According to visual analogue scale (VAS), pain degree at 2, 4, 8, 12 and 24 h after surgery, total dosage of analgesia pump, total times and effective times of pressing were evaluated. Analgesic satisfaction rate, and adverse reactions such as nausea, vomiting, dizziness and headache at the same time were observed and recorded. The postoperative VAS in the experimental group was evidently lower than that in the control group (P<0.05) at 8, 12 and 24 h after surgery, which was statistically significant. There was no significant difference in postoperative VAS between experimental group and control group at 2 and 4 h after surgery (P>0.05). The incidence of adverse reactions to nausea and vomiting in the experimental group was low. There was no significant difference in the total dosage of analgesia pump, total times and effective times of pressing and analgesic satisfaction rate (P>0.05). After laparoscopic radical resection of colon cancer, nalbuphine is effective in PCIA, with low incidence of adverse reactions and high safety.
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Affiliation(s)
- Qi Jiang
- Department of Anesthesiology, Xiang Yang No. 1 People's Hospital, Hubei University of Medicine, Xiangyang, Hubei 441000, P.R. China
| | - Rongfang Zhang
- Department of Anesthesiology, Xiang Yang No. 1 People's Hospital, Hubei University of Medicine, Xiangyang, Hubei 441000, P.R. China
| | - Tao Liu
- Department of Anesthesiology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei 441000, P.R. China
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Grace PM, Strand KA, Galer EL, Rice KC, Maier SF, Watkins LR. Protraction of neuropathic pain by morphine is mediated by spinal damage associated molecular patterns (DAMPs) in male rats. Brain Behav Immun 2018; 72:45-50. [PMID: 28860068 PMCID: PMC5832500 DOI: 10.1016/j.bbi.2017.08.018] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Accepted: 08/28/2017] [Indexed: 11/27/2022] Open
Abstract
We have recently reported that a short course of morphine, starting 10days after sciatic chronic constriction injury (CCI), prolonged the duration of mechanical allodynia for months after morphine ceased. Maintenance of this morphine-induced persistent sensitization was dependent on spinal NOD-like receptor protein 3 (NLRP3) inflammasomes-protein complexes that proteolytically activate interleukin-1β (IL-1β) via caspase-1. However, it is still unclear how NLRP3 inflammasome signaling is maintained long after morphine is cleared. Here, we demonstrate that spinal levels of the damage associated molecular patterns (DAMPs) high mobility group box 1 (HMGB1) and biglycan are elevated during morphine-induced persistent sensitization in male rats; that is, 5weeks after cessation of morphine dosing. We also show that HMGB1 and biglycan levels are at least partly dependent on the initial activation of caspase-1, as well as Toll like receptor 4 (TLR4) and the purinergic receptor P2X7R-receptors responsible for priming and activation of NLRP3 inflammasomes. Finally, pharmacological attenuation of the DAMPs HMGB1, biglycan, heat shock protein 90 and fibronectin persistently reversed morphine-prolonged allodynia. We conclude that after peripheral nerve injury, morphine treatment results in persistent DAMP release via TLR4, P2X7R and caspase-1, which are involved in formation/activation of NLRP3 inflammasomes. These DAMPs are responsible for maintaining persistent allodynia, which may be due to engagement of a positive feedback loop, in which NLRP3 inflammasomes are persistently activated by DAMPs signaling at TLR4 and P2X7R.
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Affiliation(s)
- Peter M. Grace
- Department of Psychology and Neuroscience, and The Center for Neuroscience, University of Colorado, Boulder, CO, USA,Discipline of Pharmacology, School of Medicine, University of Adelaide, Adelaide, SA, Australia
| | - Keith A. Strand
- Department of Psychology and Neuroscience, and The Center for Neuroscience, University of Colorado, Boulder, CO, USA
| | - Erika L. Galer
- Department of Psychology and Neuroscience, and The Center for Neuroscience, University of Colorado, Boulder, CO, USA
| | - Kenner C. Rice
- Drug Design and Synthesis Section, National Institute on Drug Abuse and National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD, USA
| | - Steven F. Maier
- Department of Psychology and Neuroscience, and The Center for Neuroscience, University of Colorado, Boulder, CO, USA
| | - Linda R. Watkins
- Department of Psychology and Neuroscience, and The Center for Neuroscience, University of Colorado, Boulder, CO, USA
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Woodward DF, Wang JW, Ni M, Bauer A, Martos JL, Carling RW, Poloso NJ. In
vivo
studies validating multitargeting of prostanoid receptors for achieving superior anti‐inflammatory effects. FASEB J 2016; 31:368-375. [DOI: 10.1096/fj.201600604r] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Accepted: 09/28/2016] [Indexed: 01/16/2023]
Affiliation(s)
- David F. Woodward
- Department of Biological SciencesAllergan, Public Limited Company Irvine California USA
- Department of BioengineeringImperial College London London United Kingdom
| | - Jenny W. Wang
- Department of Biological SciencesAllergan, Public Limited Company Irvine California USA
| | - Ming Ni
- Department of Biological SciencesAllergan, Public Limited Company Irvine California USA
| | - Alex Bauer
- Department of Biological SciencesAllergan, Public Limited Company Irvine California USA
| | - Jose L. Martos
- Discovery DepartmentSelcia Limited Fyfield United Kingdom
| | | | - Neil J. Poloso
- Department of Biological SciencesAllergan, Public Limited Company Irvine California USA
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