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Ghani S, Alkhlaif Y, Mann J, Moncayo L, Ulker E, Caillaud M, Barik M, Ditre JW, Miles MF, Damaj MI. Surgical incision pain induced an increase in alcohol consumption in mice. Alcohol 2024; 117:1-9. [PMID: 38479450 PMCID: PMC11042971 DOI: 10.1016/j.alcohol.2024.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 03/03/2024] [Accepted: 03/08/2024] [Indexed: 03/25/2024]
Abstract
INTRODUCTION Large population-based studies have suggested a link between increased alcohol use and reduced pain. In addition, these studies suggest that higher levels of pain intensity are associated with an increase in alcohol consumption and rates of hazardous drinking which potentiates the risk of developing alcohol use disorders (AUD). The mechanisms and determinants of the alcohol-pain interaction can be studied in preclinical studies. METHODS The overall goal of this study is to use animal models to explore the impact of acute postoperative pain on alcohol intake. To achieve this, we characterized the timeline and levels of alcohol intake and preference in mice after laparotomy in the 2-bottle choice paradigm. RESULTS Our results show that laparotomy surgery increased alcohol intake and preference in male mice but not females in the 2-bottle choice and 3-bottle choice assays. In addition, ketoprofen administration blocked the increase in alcohol consumption in male mice after laparotomy. We also found that changes in alcohol initial sensitivity and acute functional tolerance, using loss of righting reflex (LORR) response, occur after surgery in mice. CONCLUSION Taken together, these findings suggests that sex, pain and alcohol sensitivity-related factors may modulate the relationship between alcohol consumption and pain.
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Affiliation(s)
- Sofia Ghani
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, USA
| | - Yasmin Alkhlaif
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, USA
| | - Jared Mann
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, USA
| | - Lauren Moncayo
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, USA
| | - Esad Ulker
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, USA
| | - Martial Caillaud
- Nantes Université, INSERM, UMR1235-TENS, The Enteric Nervous System in Gut and Brain Diseases, Nantes, France
| | - Mitali Barik
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, USA
| | - Joseph W Ditre
- Department of Psychology, Syracuse University, Syracuse, NY, USA
| | - Michael F Miles
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, USA
| | - M Imad Damaj
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, USA; Translational Research Initiative for Pain and Neuropathy, Virginia Commonwealth University, USA.
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Cucinello-Ragland JA, Alrashed NH, Lee S, Davis EC, Edwards KN, Edwards S. Sex-specific biobehavioral regulation of persistent inflammatory pain by alcohol. ALCOHOL, CLINICAL & EXPERIMENTAL RESEARCH 2023; 47:1283-1296. [PMID: 37208939 PMCID: PMC10422981 DOI: 10.1111/acer.15104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 04/19/2023] [Accepted: 05/04/2023] [Indexed: 05/21/2023]
Abstract
BACKGROUND Although a large percentage of chronic pain patients consume alcohol to manage their pain, there is a significant gap in knowledge regarding the mechanisms underlying the antinociceptive effects of alcohol. METHODS To determine the longitudinal analgesic effects of alcohol, we utilized the complete Freund's adjuvant (CFA) model of inflammatory pain in adult female and male Wistar rats. Both somatic and negative motivational aspects of pain were measured using the electronic von Frey (mechanical nociception) system, thermal probe test (thermal nociception), and mechanical conflict avoidance task (pain avoidance-like behavior). Tests were conducted at baseline and 1 and 3 weeks following intraplantar CFA or saline administration. At both time points post-CFA, animals were treated with each of three doses of alcohol (intraperitoneal; 0, 0.5, and 1.0 g/kg) over separate days in a Latin square design. RESULTS Alcohol produced dose-dependent mechanical analgesia and antihyperalgesia in females but only antihyperalgesia in males. Although alcohol continued to attenuate CFA-induced decreases in both thermal and mechanical nociceptive thresholds between 1 and 3 weeks post-CFA, it appeared less effective at increasing thresholds 3 weeks after CFA induction. CONCLUSIONS These data suggest that individuals may develop tolerance to alcohol's ability to alleviate both somatic and negative motivational symptoms of chronic pain over time. We also discovered sex-specific neuroadaptations in protein kinase A-dependent phosphorylation of GluR1 subunits and extracellular signal-regulated kinase (ERK 1/2) phosphorylation in nociceptive brain centers of animals receiving an alcohol challenge 1 week post-CFA. Together, these findings illustrate a sex-specific regulation of behavioral and neurobiological indices of persistent pain by alcohol.
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Affiliation(s)
- Jessica A. Cucinello-Ragland
- Department of Physiology, LSU Health-New Orleans
- Alcohol & Drug Abuse Center of Excellence, LSU Health-New Orleans
| | | | - Sumin Lee
- Department of Physiology, LSU Health-New Orleans
| | | | | | - Scott Edwards
- Department of Physiology, LSU Health-New Orleans
- Alcohol & Drug Abuse Center of Excellence, LSU Health-New Orleans
- Neuroscience Center of Excellence, LSU Health-New Orleans
- Comprehensive Alcohol-HIV/AIDS Research Center, LSU Health-New Orleans
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César MMJ, Alberto BCM, Gilberto SB, Patricia ST, Gloria VRA, Tommaso I. Persistent peripheral inflammation and pain induces immediate early gene activation in supraspinal nuclei in rats. Behav Brain Res 2023; 446:114395. [PMID: 36925049 DOI: 10.1016/j.bbr.2023.114395] [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: 10/17/2022] [Revised: 03/02/2023] [Accepted: 03/13/2023] [Indexed: 03/17/2023]
Abstract
Pain is a public health concern worldwide and can present simultaneously with anxiety and depression. c-Fos is a marker used to identify activated cells in response to various stimuli. Specifically, it can be used as a brain marker of pain. We examined whether peripheral inflammation produces mechanical allodynia, anxiety- and depression-related behaviors in male rats (Rattus norvegicus, Wistar strain) and if these behaviors can have an impact on c-Fos expression in the supraspinal nuclei involved in pain control. We assessed mechanical thresholds by von Frey monofilaments, depression-like behaviors in the forced swimming test (FST) and anxiety-related behaviors in the open field test (OFT) after the administration of the inflamogen Complete Freund´s Adjuvant (CFA) in rats. We found that CFA increased paw diameter is all rats, however, CFA treatment resulted in a subgroup of rats developing allodynia [CFA- mechanical allodynia (CFA-MA)] and a subgroup of rats not developing allodynia [CFA-no mechanical allodynia (CFA-NMA)]. At the peak of tactile allodynia and inflammation, results were coupled with an increase in c-Fos expression in several supraspinal brain nuclei, i.e. basolateral amygdala, periaqueductal gray matter and rostroventromedial medulla in CFA-MA rats. Moreover, we found a correlation between c-Fos levels and mechanical thresholds. No modification in c-Fos expression was observed in CFA-NMA rats. CFA did not modulate behaviors in the OFT or FST. In summary, we show that mechanical allodynia but not peripheral inflammation activates c-Fos in several supraspinal nuclei, which sheds new light on brain regions involved in the control of pain following peripheral injury and decouples this effect from mere peripheral inflammation. This model may be used to study resistance to pain development in future studies.
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Affiliation(s)
- Morales-Medina Julio César
- Centro de Investigación en Reproducción Animal, CINVESTAV-Universidad Autónoma de Tlaxcala, Tlaxcala, Mexico.
| | | | - Serrano-Bello Gilberto
- Centro de Investigación en Reproducción Animal, CINVESTAV-Universidad Autónoma de Tlaxcala, Tlaxcala, Mexico
| | - Sánchez-Teoyotl Patricia
- Centro de Investigación en Reproducción Animal, CINVESTAV-Universidad Autónoma de Tlaxcala, Tlaxcala, Mexico; Maestría en Ciencias Biológicas, Universidad Autónoma de Tlaxcala, Tlaxcala, Mexico
| | - Vásquez-Ramírez Ana Gloria
- Centro de Investigación en Reproducción Animal, CINVESTAV-Universidad Autónoma de Tlaxcala, Tlaxcala, Mexico; Facultad de Ciencias de la Salud, Universidad Autónoma de Tlaxcala, Tlaxcala, Mexico
| | - Iannitti Tommaso
- University of Ferrara, Department of Medical Sciences, Section of Experimental Medicine, Via Fossato di Montara, 70, 44121 Ferrara, Italy
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Nothem MA, Wickman JR, Giacometti LL, Barker JM. Effects of ethanol on mechanical allodynia and dynamic weight bearing in male and female mice with spared nerve injury. ALCOHOL, CLINICAL & EXPERIMENTAL RESEARCH 2023; 47:382-394. [PMID: 36521835 PMCID: PMC9992011 DOI: 10.1111/acer.14997] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 11/11/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022]
Abstract
BACKGROUND Men and women with chronic pain report increased alcohol use and are more likely to be diagnosed with alcohol use disorder. The relationship between alcohol use and pain is bidirectional. Alcohol is used as an analgesic, but chronic alcohol intake increases pain. Sex differences in the relationship between chronic pain and alcohol are reported in the clinical and preclinical literature, but due to this bidirectional relationship, it is challenging to investigate the mechanisms that contribute to these differences. Thus, animal models of chronic pain are needed to characterize the efficacy of ethanol as an analgesic in males and females. The current experiments tested the hypothesis that ethanol differentially reduces pain behaviors in male and female mice in chronic neuropathic pain. METHODS The spared nerve injury (SNI) model was used to investigate the analgesic effects of multiple doses of ethanol (0.5, 1, 2, g/kg i.p.) in male and female mice using von Frey and dynamic weight-bearing (DWB) assays. RESULTS In both male and female mice, SNI led to robust allodynia and shifts in dynamic weight bearing. In male SNI mice, all three doses of ethanol fully reversed mechanical allodynia and shifts in DWB. In SNI females, only the highest dose (2.0 g/kg) was fully antiallodynic in the von Frey assay, while shifts in weight bearing were reversed at the 1.0 and 2.0 g/kg doses. The differences between male and females were not due to lower blood ethanol concentrations in female mice. CONCLUSION These data indicate that while ethanol has antiallodynic and antinociceptive effects in male and female mice, the doses and time course of these effects are distinct. Studies investigating the relationship between pain and ethanol exposure in mice should consider sex as a key variable. These data also inform reported sex differences in rodent models of chronic pain and in chronic pain patients.
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Affiliation(s)
- Mitchell A Nothem
- Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, PA, 19102
| | - Jason R Wickman
- Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, PA, 19102
- Graduate Program in Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, PA, 19102
| | - Laura L Giacometti
- Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, PA, 19102
| | - Jacqueline M Barker
- Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, PA, 19102
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Vitus D, Williams MK, Rizk M, Neubert JK, Robinson M, Boissoneault J. Analgesic effects of alcohol in adults with chronic jaw pain. Alcohol Clin Exp Res 2022; 46:1515-1524. [PMID: 35989585 PMCID: PMC9427671 DOI: 10.1111/acer.14883] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 06/05/2022] [Accepted: 06/07/2022] [Indexed: 01/31/2023]
Abstract
BACKGROUND Although recent literature provides promising support for the analgesic properties of alcohol, potential differences in alcohol analgesia as a function of chronic pain status are not well understood. Thus, this study examined chronic pain status as a potential moderator of alcohol analgesia and distinguished between multiple aspects of pain experience and sensitivity: pain threshold, pain intensity, pain unpleasantness, and perceived relief. METHODS Social drinkers with (N = 19) and without (N = 29) chronic jaw pain completed two testing sessions in a counterbalanced order: alcohol (target BrAC = 0.08 g/dl) and placebo. In each, pressure algometry was performed at the insertion of the masseter. Alcohol analgesia was assessed by examining the main and interactive effects of beverage condition, pressure level (4, 5, or 6 pound-feet [lbf]), and chronic jaw pain status (chronic pain vs. pain-free control) on quantitative sensory testing measures and pain relief ratings following noxious stimuli. RESULTS Analyses indicated significant increases in pain threshold and pain relief and reductions in pain unpleasantness and pain intensity, under the alcohol condition. Chronic pain participants demonstrated lower pain thresholds and greater pain intensity and pain unpleasantness ratings than controls. There were no interactive effects of alcohol and pain conditions on any pain measure. CONCLUSIONS Findings provide experimental evidence of alcohol's analgesic and pain-relieving effects and suggest that these effects do not significantly differ by chronic pain status. Individuals, who self-medicate pain via alcohol consumption, irrespective of pain status, may be at increased risk to engage in hazardous drinking patterns and thus experience adverse alcohol-related consequences.
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Affiliation(s)
- Darya Vitus
- Department of Clinical and Health Psychology, University of Florida, Gainesville, FL, 32610
- Center for Pain Research and Behavioral Health, University of Florida, Gainesville, FL, 32610
| | - Michelle K. Williams
- Department of Clinical and Health Psychology, University of Florida, Gainesville, FL, 32610
- Center for Pain Research and Behavioral Health, University of Florida, Gainesville, FL, 32610
| | - Mehdi Rizk
- Department of Clinical and Health Psychology, University of Florida, Gainesville, FL, 32610
- Center for Pain Research and Behavioral Health, University of Florida, Gainesville, FL, 32610
| | - John K. Neubert
- Center for Pain Research and Behavioral Health, University of Florida, Gainesville, FL, 32610
- Department of Orthodontics, University of Florida, Gainesville, FL, 32610
| | - Michael Robinson
- Department of Clinical and Health Psychology, University of Florida, Gainesville, FL, 32610
- Center for Pain Research and Behavioral Health, University of Florida, Gainesville, FL, 32610
| | - Jeff Boissoneault
- Department of Clinical and Health Psychology, University of Florida, Gainesville, FL, 32610
- Center for Pain Research and Behavioral Health, University of Florida, Gainesville, FL, 32610
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Simon L, Edwards S, Molina PE. Pathophysiological Consequences of At-Risk Alcohol Use; Implications for Comorbidity Risk in Persons Living With Human Immunodeficiency Virus. Front Physiol 2022; 12:758230. [PMID: 35115952 PMCID: PMC8804300 DOI: 10.3389/fphys.2021.758230] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 10/13/2021] [Indexed: 12/14/2022] Open
Abstract
At-risk alcohol use is a significant risk factor associated with multisystemic pathophysiological effects leading to multiorgan injury and contributing to 5.3% of all deaths worldwide. The alcohol-mediated cellular and molecular alterations are particularly salient in vulnerable populations, such as people living with HIV (PLWH), diminishing their physiological reserve, and accelerating the aging process. This review presents salient alcohol-associated mechanisms involved in exacerbation of cardiometabolic and neuropathological comorbidities and their implications in the context of HIV disease. The review integrates consideration of environmental factors, such as consumption of a Western diet and its interactions with alcohol-induced metabolic and neurocognitive dyshomeostasis. Major alcohol-mediated mechanisms that contribute to cardiometabolic comorbidity include impaired substrate utilization and storage, endothelial dysfunction, dysregulation of the renin-angiotensin-aldosterone system, and hypertension. Neuroinflammation and loss of neurotrophic support in vulnerable brain regions significantly contribute to alcohol-associated development of neurological deficits and alcohol use disorder risk. Collectively, evidence suggests that at-risk alcohol use exacerbates cardiometabolic and neurocognitive pathologies and accelerates biological aging leading to the development of geriatric comorbidities manifested as frailty in PLWH.
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Cucinello-Ragland JA, Mitchell-Cleveland R, Bradley Trimble W, Urbina AP, Yeh AY, Edwards KN, Molina PE, Simon Peter L, Edwards S. Alcohol amplifies cingulate cortex signaling and facilitates immobilization-induced hyperalgesia in female rats. Neurosci Lett 2021; 761:136119. [PMID: 34280506 PMCID: PMC8387454 DOI: 10.1016/j.neulet.2021.136119] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 07/14/2021] [Indexed: 12/28/2022]
Abstract
Complex Regional Pain Syndrome (CRPS) is a musculoskeletal pain condition that often develops after limb injury and/or immobilization. Although the exact mechanisms underlying CRPS are unknown, the syndrome is associated with central and autonomic nervous system dysregulation and peripheral hyperalgesia symptoms. These symptoms also manifest in alcoholic neuropathy, suggesting that the two conditions may be pathophysiologically accretive. Interestingly, people assigned female at birth (AFAB) appear to be more sensitive to both CRPS and alcoholic neuropathy. To better understand the biobehavioral mechanisms underlying these conditions, we investigated a model of combined CRPS and alcoholic neuropathy in female rats. Animals were pair-fed either a Lieber-DeCarli alcohol liquid diet or a control diet for ten weeks. CRPS was modeled via unilateral hind limb cast immobilization for seven days, allowing for the other limb to serve as a within-subject control for hyperalgesia measures. To investigate the role of circulating ovarian hormones on pain-related behaviors, half of the animals underwent ovariectomy (OVX). Using the von Frey procedure to record mechanical paw withdrawal thresholds, we found that cast immobilization and chronic alcohol drinking separately and additively produced mechanical hyperalgesia observed 3 days after cast removal. We then examined neuroadaptations in AMPA GluR1 and NMDA NR1 glutamate channel subunits, extracellular signal-regulated kinase (ERK), and cAMP response element-binding protein (CREB) in bilateral motor and cingulate cortex across all groups. Consistent with increased pain-related behavior, chronic alcohol drinking increased GluR1, NR1, ERK, and CREB phosphorylation in the cingulate cortex. OVX did not alter any of the observed effects. Our results suggest accretive relationships between CRPS and alcoholic neuropathy symptoms and point to novel therapeutic targets for these conditions.
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Affiliation(s)
- Jessica A Cucinello-Ragland
- Department of Physiology and School of Medicine, LSU Health-New Orleans, United States; Alcohol & Drug Abuse Center of Excellence, LSU Health-New Orleans, United States
| | | | - W Bradley Trimble
- Department of Physiology and School of Medicine, LSU Health-New Orleans, United States
| | - Amy P Urbina
- Department of Physiology and School of Medicine, LSU Health-New Orleans, United States
| | - Alice Y Yeh
- Department of Physiology and School of Medicine, LSU Health-New Orleans, United States
| | - Kimberly N Edwards
- Department of Physiology and School of Medicine, LSU Health-New Orleans, United States; Alcohol & Drug Abuse Center of Excellence, LSU Health-New Orleans, United States
| | - Patricia E Molina
- Department of Physiology and School of Medicine, LSU Health-New Orleans, United States; Alcohol & Drug Abuse Center of Excellence, LSU Health-New Orleans, United States; Comprehensive Alcohol-HIV/AIDS Research Center, LSU Health-New Orleans, United States
| | - Liz Simon Peter
- Department of Physiology and School of Medicine, LSU Health-New Orleans, United States; Alcohol & Drug Abuse Center of Excellence, LSU Health-New Orleans, United States; Comprehensive Alcohol-HIV/AIDS Research Center, LSU Health-New Orleans, United States
| | - Scott Edwards
- Department of Physiology and School of Medicine, LSU Health-New Orleans, United States; Alcohol & Drug Abuse Center of Excellence, LSU Health-New Orleans, United States; Neuroscience Center of Excellence, LSU Health-New Orleans, United States; Comprehensive Alcohol-HIV/AIDS Research Center, LSU Health-New Orleans, United States.
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Alcohol. Alcohol 2021. [DOI: 10.1016/b978-0-12-816793-9.00001-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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