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Nikbakhtzadeh M, Borzadaran FM, Zamani E, Shabani M. Protagonist Role of Opioidergic System on Post-Traumatic Stress Disorder and Associated Pain. Psychiatry Investig 2020; 17:506-516. [PMID: 32492768 PMCID: PMC7324730 DOI: 10.30773/pi.2020.0002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 03/19/2020] [Accepted: 03/24/2020] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVE Post-traumatic stress disorder (PTSD) and chronic pain often co-occur. Studies have shown an interaction between pain and PTSD. In this narrative review, we aim to support conducting comprehensive studies by describing PTSD, pain and determining whether opioidergic system, its agonist and antagonist manipulation could positively or negatively affect PTSD symptoms and concurrent pain. METHODS Term searches was done in Google Scholar, Scopus, ScienceDirect, Web of Science and PubMed databases as well as hand searching in key resource journals from 1979-2019. RESULTS There are a lot of contradictions and disputes when endogenous opioidergic system and opioidergic antagonist system are studied in PTSD patients. Exogenous morphine administration in PTSD patients can decrease the symptoms of PTSD but it doesn't have a pain reduction effect to an acceptable level. Beta-endorphin as an endogenous opioid is effective in pain reduction in the moment of events but after minutes to hours, the endorphins withdrawal syndrome leads to exaggerated intrusive thoughts and flashbacks of PTSD, which exacerbate the pain. It has also been shown that naloxone, as an opioidergic antagonist, can reduce or increase the PTSD symptoms and its associated pain. CONCLUSION Data suggest different roles of opioidergic system and their antagonist in pain control and mood in PTSD. However, further investigations need to be done in order to reveal the role of endogenous opioidergic system and opioidergic antagonist system as a mediator in PTSD patients suffering from acute or chronic pain.
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Affiliation(s)
- Marjan Nikbakhtzadeh
- Department of Physiology, School of Medicine, Tehran University of Medical Science, Tehran, Iran
| | - Fatemeh Mohtashami Borzadaran
- Kerman Neuroscience Research Center, Neuropharmacology Institute, Kerman University of Medical Sciences, Kerman, Iran
| | - Elham Zamani
- Department of Physiology, School of Medicine, Tehran University of Medical Science, Tehran, Iran
| | - Mohammad Shabani
- Kerman Neuroscience Research Center, Neuropharmacology Institute, Kerman University of Medical Sciences, Kerman, Iran
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Ferdousi M, Finn DP. Stress-induced modulation of pain: Role of the endogenous opioid system. PROGRESS IN BRAIN RESEARCH 2018; 239:121-177. [DOI: 10.1016/bs.pbr.2018.07.002] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Pitcher MH, Gonzalez-Cano R, Vincent K, Lehmann M, Cobos EJ, Coderre TJ, Baeyens JM, Cervero F. Mild Social Stress in Mice Produces Opioid-Mediated Analgesia in Visceral but Not Somatic Pain States. THE JOURNAL OF PAIN 2017; 18:716-725. [PMID: 28219667 DOI: 10.1016/j.jpain.2017.02.422] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 01/14/2017] [Accepted: 02/02/2017] [Indexed: 12/30/2022]
Abstract
Visceral pain has a greater emotional component than somatic pain. To determine if the stress-induced analgesic response is differentially expressed in visceral versus somatic pain states, we studied the effects of a mild social stressor in either acute visceral or somatic pain states in mice. We show that the presence of an unfamiliar conspecific mouse (stranger) in an adjacent cubicle of a standard transparent observation box produced elevated plasma corticosterone levels compared with mice tested alone, suggesting that the mere presence of a stranger is stressful. We then observed noxious visceral or somatic stimulation-induced nociceptive behavior in mice tested alone or in mildly stressful conditions (ie, beside an unfamiliar stranger). Compared with mice tested alone, the presence of a stranger produced a dramatic opioid-dependent reduction in pain behavior associated with visceral but not somatic pain. This social stress-induced reduction of visceral pain behavior relied on visual but not auditory/olfactory cues. These findings suggest that visceral pain states may provoke heightened responsiveness to mild stressors, an effect that could interfere with testing outcomes during simultaneous behavioral testing of multiple rodents. PERSPECTIVE In mice, mild social stress due to the presence of an unfamiliar conspecific mouse reduces pain behavior associated with noxious visceral but not somatic stimulation, suggesting that stress responsiveness may be enhanced in visceral pain versus somatic pain states.
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Affiliation(s)
- Mark H Pitcher
- National Center for Complementary and Integrative Health, National Institutes of Health, Bethesda, Maryland.
| | | | - Kathleen Vincent
- Alan Edwards Centre for Research on Pain, McGill University, Montreal, Quebec, Canada
| | - Michael Lehmann
- National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland
| | - Enrique J Cobos
- Department of Pharmacology, University of Granada, Granada, Spain
| | - Terence J Coderre
- Alan Edwards Centre for Research on Pain, McGill University, Montreal, Quebec, Canada
| | - José M Baeyens
- Department of Pharmacology, University of Granada, Granada, Spain
| | - Fernando Cervero
- Alan Edwards Centre for Research on Pain, McGill University, Montreal, Quebec, Canada
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New perspectives on the endothelin axis in pain. Pharmacol Res 2011; 63:532-40. [PMID: 21352917 DOI: 10.1016/j.phrs.2011.02.002] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2010] [Revised: 02/01/2011] [Accepted: 02/02/2011] [Indexed: 01/14/2023]
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Keskil Z, Evrenkaya T, Gözil R, Calgüner E, Keskil S. Effects of vasoconstriction on the acute anterior pituitary hormonal response to head injury. Neuropeptides 2002; 36:287-90. [PMID: 12372703 DOI: 10.1016/s0143-4179(02)00047-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Since cerebral vasoconstriction alone may impair the hypothalamic and pituitary circulation, we planned to investigate whether the hormonal response to the vasoconstriction that may be induced by the head injury is a significant component of the general acute hormonal response to head injury. Although diffuse adrenocorticotropic hormone immunohistochemical staining of the adenohypophysis of rabbits was observed in the head trauma administered group, only mild positive staining was present in the Endothelin-1 administered group. However, decreased prolactin staining was found in both of the groups. It is postulated that trauma induced vasoconstriction may not be an important manipulating factor in the corticotrophic hormone response to injury, while it may be responsible for the decreased prolactin response.
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Affiliation(s)
- Zuhal Keskil
- Department of Pharmacology, Kirikkale University Medical School, Kirikkale, Turkey.
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Gözil R, Evrenkaya T, Keskil Z, Calgüner E, Keskil S. Effects of trauma and pain on the acute anterior pituitary hormonal response. Neuropeptides 2002; 36:46-9. [PMID: 12147213 DOI: 10.1054/npep.2002.0867] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The aim of this study was to compare the effects of trauma and pain on the pituitary gland so as to determine whether pain is a significant component in the general acute hormonal trauma response. Adenohypophysis of rabbits that have undergone either diffuse traumatic brain injury or pain were investigated using immunohistochemistry. The ACTH staining pattern of the pain-administered rabbits was not as strong as the head-trauma-administered group, whereas PRL staining pattern of the former group was not so weak as the later group. As a conclusion, since adrenocorticotrophic hormone and prolactin staining patterns were different in the trauma administered and pain induced groups; it may be postulated that pain alone may not be an important factor in the hormonal response to trauma.
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Affiliation(s)
- R Gözil
- Department of Anatomy, Gazi University Medical School, Beşevler, Ankara, Turkey
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Rhodes ME, Rubin RT. Functional sex differences ('sexual diergism') of central nervous system cholinergic systems, vasopressin, and hypothalamic-pituitary-adrenal axis activity in mammals: a selective review. BRAIN RESEARCH. BRAIN RESEARCH REVIEWS 1999; 30:135-52. [PMID: 10525171 DOI: 10.1016/s0165-0173(99)00011-9] [Citation(s) in RCA: 184] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Sexual dimorphism of the mammalian central nervous system (CNS) has been widely documented. Morphological sex differences in brain areas underlie sex differences in function. To distinguish sex differences in physiological function from underlying sexual dimorphisms, we use the term, sexual diergism, to encompass differences in function between males and females. Whereas the influence of sex hormones on CNS morphological characteristics and function of the hypothalamic-pituitary-gonadal axis has been well-documented, little is known about sexual diergism of CNS control of the hypothalamic-pituitary-adrenal (HPA) axis. Many studies have been conducted on both men and women but have not reported comparisons between them, and many animal studies have used males or females, but not both. From a diergic standpoint, the CNS cholinergic system appears to be more responsive to stress and other stimuli in female than in male mammals; but from a dimorphic standpoint, it is anatomically larger, higher in cell density, and more stable with age in males than in females. Dimorphism often produces diergism, but age, hormones, environment and genetics contribute differentially. This review focuses on the sexual diergism of CNS cholinergic and vasopressinergic systems and their relationship to the HPA axis, with resulting implications for the study of behavior, disease, and therapeutics.
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Affiliation(s)
- M E Rhodes
- Center for Neurosciences Research, MCP-Hahnemann School of Medicine, Pittsburgh, PA, USA.
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Gamaro GD, Xavier MH, Denardin JD, Pilger JA, Ely DR, Ferreira MB, Dalmaz C. The effects of acute and repeated restraint stress on the nociceptive response in rats. Physiol Behav 1998; 63:693-7. [PMID: 9523917 DOI: 10.1016/s0031-9384(97)00520-9] [Citation(s) in RCA: 108] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The effects of acute and repeated restraint stress on nociception, as measured by the tail-flick latency, were studied in adult male and female rats. After the exposure to a single restraint session, both male and female rats presented an increased latency in the tail-flick test. On the other hand, chronically stressed females presented a performance similar to the control group, whereas chronically stressed male rats responded to restraint with a decrease in the tail-flick latency. This response could be determined by the chronic treatment itself or by the restraint done just before the measurement. Thus, the effect of chronic stress upon basal tail-flick latency was evaluated. In male rats, this latency was significantly decreased in the stressed animals compared with the control group. In female rats, no difference between those groups was observed. Therefore, the results suggest that: (a) acute restraint stress induces an analgesic response in both male and female rats, and (b) there is a gender-specific nociceptive response induced by repeated restraint stress with a hyperalgesic effect in response to stress only in males.
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Affiliation(s)
- G D Gamaro
- Department of Biochemistry, Instituto de Biociências, UFRGS, Porto Alegre, RS, Brazil
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Crawley JN, Paylor R. A proposed test battery and constellations of specific behavioral paradigms to investigate the behavioral phenotypes of transgenic and knockout mice. Horm Behav 1997; 31:197-211. [PMID: 9213134 DOI: 10.1006/hbeh.1997.1382] [Citation(s) in RCA: 398] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Behavioral phenotyping of transgenic and knockout mice requires rigorous, formal analyses. Well-characterized paradigms can be chosen from the established behavioral neuroscience literature. This review describes (1) a series of neurological and neuropsychological tests which are effectively used as a first screen for behavioral abnormalities in mutant mice, and (2) a series of specific behavioral paradigms, clustered by category. Included are multiple paradigms for each category, including learning and memory, feeding, analgesia, aggression, anxiety, depression, schizophrenia, and drug abuse models. Examples are given from the experiences of the authors, in applying these experimental designs to transgenic and knockout mice. Extensive references for each behavioral paradigm are provided, to allow new investigators to access the relevant literature on behavioral methodology.
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Affiliation(s)
- J N Crawley
- Section on Behavioral Neuropharmacology, National Institute of Mental Health, Bethesda, Maryland 20892, USA
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Menendez L, Andrés-Trelles F, Hidalgo A, Baamonde A. Gender and test dependence of a type of kappa mediated stress induced analgesia in mice. GENERAL PHARMACOLOGY 1994; 25:903-8. [PMID: 7835635 DOI: 10.1016/0306-3623(94)90094-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
1. In male mice, 80 inescapable footshocks (S-80) induce analgesic responses measured by the tail flick test that are blocked by naloxone and the kappa opioid antagonist, nor-binaltorphimine. We now study the nociceptive responses, induced after this particular stress, measured by the writhing test, the tail immersion test and a high intensity tail immersion test both in male and female mice. 2. In stressed males, analgesic responses are seen in all the nociceptive tests. Naloxone (10 mg/kg) does not prevent them. 3. In stressed females, in contrast with males, no analgesia is produced in the tail flick test. The writhing test and the tail immersion test registered analgesic responses that were not prevented by naloxone (10 mg/kg). 4. We conclude that only the antinociceptive kappa opioid mediated component of the stress we study is strongly dependent on gender, in contrast to other types of analgesia triggered by the same stress.
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Affiliation(s)
- L Menendez
- Departamento de Medicina, Facultad de Medicina, Universidad de Oviedo, Asturias, Spain
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Abstract
This paper is the sixteenth installment of our annual review of research concerning the opiate system. It is restricted to papers published during 1993 that concern the behavioral effects of the endogenous opiate peptides, and does not include papers dealing only with their analgesic properties. The specific topics this year include stress; tolerance and dependence; eating; drinking; gastrointestinal, renal, and hepatic function; mental illness and mood; learning, memory, and reward; cardiovascular responses; respiration and thermoregulation; seizures and other neurological disorders; electrical-related activity; general activity and locomotion; development; immunological responses; and other behaviors.
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Affiliation(s)
- G A Olson
- Department of Psychology, University of New Orleans, LA 70148
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