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Barcelos MN, Gonçalves-Santos E, Souza MA, Santos EC, Gonçalves RV, Castro-Gamero AM, Novaes RD. Prolonged testosterone 17β-cyclopentylpropionate exposition induces behavioral, ovarian, oviductal, uterine and reproductive disturbances in female mice. Life Sci 2024; 338:122408. [PMID: 38181852 DOI: 10.1016/j.lfs.2023.122408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 12/16/2023] [Accepted: 12/29/2023] [Indexed: 01/07/2024]
Abstract
Anabolic-androgenic steroids (AAS) abuse is often associated with metabolic disorders and infertility. However, the current evidence on AAS-induced reproductive toxicity is mainly based on male studies. Thus, AAS repercussions on female reproductive capacity remain poorly understood, despite scarce evidence that fertility determinants may be more severely impaired in females than males exposed to these drugs. Accordingly, this study used an integrated framework to investigate the impact of different testosterone 17β-cyclopentylpropionate (TC) doses on pain sensitivity, aggressiveness, anxiety, sexual behavior, ovarian, oviductal, uterine and reproductive morphofunctional and molecular outcomes. These parameters were used to explore the reproductive capacity in female mice exposed to this synthetic testosterone ester. The animals were untreated or intraperitoneally treated with 5, 10 and 20 mg/kg TC every 48 h for 12 weeks. Our findings indicated that testosterone was upregulated while the hormones luteinizing, follicle-stimulating, estrogen and progesterone were down-regulated by TC. This AAS also exerted deleterious effects on anxiety, aggressivity, nociception, exploratory and sexual behavior in female mice. Concurrently, TC attenuated ovarian follicle maturation, interrupted the estrous cycle, induced oviductal and uterine hypotrophy. Estrous cyclicity was reestablished 60 days after AAS treatment. However, TC-treated mice still exhibited impaired reproductive capacity, a disturbance potentially related to deficiency in folliculogenesis, sex hormones production, and endometrial receptivity mediate by ER-α, PR, HOXA-10 and LIF down-regulation. Taken together, our findings indicated that in addition to female behavior, reproductive organs microstructure and function are markedly impaired by TC in a dose-dependent manner, whose time-dependent reversibility remains to be clarified.
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Affiliation(s)
- Mônica N Barcelos
- Programa de Pós-Graduação em Biociências Aplicadas à Saúde, Universidade Federal de Alfenas, Alfenas 37130-001, Minas Gerais, Brazil
| | - Elda Gonçalves-Santos
- Programa de Pós-Graduação em Biociências Aplicadas à Saúde, Universidade Federal de Alfenas, Alfenas 37130-001, Minas Gerais, Brazil
| | - Matheus A Souza
- Programa de Pós-Graduação em Ciências Biológicas, Universidade Federal de Alfenas, Alfenas 37130-001, Minas Gerais, Brazil
| | - Eliziária C Santos
- Faculdade de Medicina, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina 39100-000, Minas Gerais, Brazil
| | - Reggiani V Gonçalves
- Programa de Pós-Graduação em Biologia Animal, Departamento de Biologia Animal, Universidade Federal de Viçosa, Viçosa 36570-900, Minas Gerais, Brazil
| | - Angel Mauricio Castro-Gamero
- Programa de Pós-Graduação em Biociências Aplicadas à Saúde, Universidade Federal de Alfenas, Alfenas 37130-001, Minas Gerais, Brazil; Instituto de Ciências da Natureza, Universidade Federal de Alfenas, Alfenas 37130-001, Minas Gerais, Brazil
| | - Rômulo D Novaes
- Programa de Pós-Graduação em Biociências Aplicadas à Saúde, Universidade Federal de Alfenas, Alfenas 37130-001, Minas Gerais, Brazil; Programa de Pós-Graduação em Ciências Biológicas, Universidade Federal de Alfenas, Alfenas 37130-001, Minas Gerais, Brazil; Programa de Pós-Graduação em Biologia Animal, Departamento de Biologia Animal, Universidade Federal de Viçosa, Viçosa 36570-900, Minas Gerais, Brazil; Instituto de Ciências Biomédicas, Universidade Federal de Alfenas, Alfenas 37130-001, Minas Gerais, Brazil.
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Geraghty T, Obeidat AM, Ishihara S, Wood MJ, Li J, Lopes EBP, Scanzello CR, Griffin TM, Malfait AM, Miller RE. Age-Associated Changes in Knee Osteoarthritis, Pain-Related Behaviors, and Dorsal Root Ganglia Immunophenotyping of Male and Female Mice. Arthritis Rheumatol 2023; 75:1770-1780. [PMID: 37096632 PMCID: PMC10543384 DOI: 10.1002/art.42530] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 02/07/2023] [Accepted: 03/28/2023] [Indexed: 04/26/2023]
Abstract
OBJECTIVE Osteoarthritis (OA) is a leading cause of chronic pain, yet OA pain management remains poor. Age is the strongest predictor of OA development, and mechanisms driving OA pain are unclear. We undertook this study to characterize age-associated changes in knee OA, pain-related behaviors, and dorsal root ganglion (DRG) molecular phenotypes in mice of both sexes. METHODS Male or female C57BL/6 mice 6 or 20 months of age were evaluated for histopathologic knee OA, pain-related behaviors, and L3-L5 DRG immune characterization via flow cytometry. DRG gene expression in older mice and humans was also examined. RESULTS Male mice at 20 months of age had worse cartilage degeneration than 6-month-old mice. Older female mouse knees showed increased cartilage degeneration but to a lesser degree than those of male mice. Older mice of both sexes had worse mechanical allodynia, knee hyperalgesia, and grip strength compared to younger mice. For both sexes, DRGs from older mice showed decreased CD45+ cells and a significant increase in F4/80+ macrophages and CD11c+ dendritic cells. Older male mouse DRGs showed increased expression of Ccl2 and Ccl5, and older female mouse DRGs showed increased Cxcr4 and Ccl3 expression compared to 6-month-old mouse DRGs, among other differentially expressed genes. Human DRG analysis from 6 individuals >80 years of age revealed elevated CCL2 in men compared to women, whereas CCL3 was higher in DRGs from women. CONCLUSION We found that aging in male and female mice is accompanied by mild knee OA, mechanical sensitization, and changes to immune cell populations in the DRG, suggesting novel avenues for development of OA therapies.
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Affiliation(s)
- Terese Geraghty
- Department of Internal Medicine, Division of Rheumatology, Rush University Medical Center, Chicago, IL, USA
| | - Alia M. Obeidat
- Department of Internal Medicine, Division of Rheumatology, Rush University Medical Center, Chicago, IL, USA
| | - Shingo Ishihara
- Department of Internal Medicine, Division of Rheumatology, Rush University Medical Center, Chicago, IL, USA
| | - Matthew J. Wood
- Department of Internal Medicine, Division of Rheumatology, Rush University Medical Center, Chicago, IL, USA
| | - Jun Li
- Department of Internal Medicine, Division of Rheumatology, Rush University Medical Center, Chicago, IL, USA
| | | | - Carla R. Scanzello
- Department of Medicine, Division of Rheumatology, University of Pennsylvania, Philadelphia, PA, USA
- Translational Musculoskeletal Research Center, Corp. Michael J. Crescenz VA Medical Center, Philadelphia, PA
| | - Timothy M. Griffin
- Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
- OKC Veterans Affairs Medical Center, Oklahoma City, OK, USA
| | - Anne-Marie Malfait
- Department of Internal Medicine, Division of Rheumatology, Rush University Medical Center, Chicago, IL, USA
| | - Rachel E. Miller
- Department of Internal Medicine, Division of Rheumatology, Rush University Medical Center, Chicago, IL, USA
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Dai X, Yuan M, Dang M, Liu D, Fei W. Development and Validation of a Predictive Model for Chronic Postsurgical Pain After Arthroscopic Rotator Cuff Repair: A Prospective Cohort Study. J Pain Res 2023; 16:3273-3288. [PMID: 37790188 PMCID: PMC10544136 DOI: 10.2147/jpr.s423110] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 09/20/2023] [Indexed: 10/05/2023] Open
Abstract
Purpose Chronic pain management continues to present a significant challenge following arthroscopic shoulder surgery. Our purpose was to detect chronic postsurgical pain (CPSP) in patients who had undergone arthroscopic rotator cuff repair (ARCR) and develop a nomogram capable of predicting the associated risk. Patients and Methods We collected the demographic and clinical data of 240 patients undergoing ARCR in our hospital from January 2021 to May 2022. The pain level was monitored and evaluated three months after ARCR. LASSO regression was used to screen out pain-predicting factors, which were subsequently used to construct a nomogram. Internal validation was carried out using Bootstrap resampling. The data of 78 patients who underwent ARCR in our hospital from August 2022 to December 2022 were also collected for external verification of the nomogram. The predictive model was evaluated using the receiver operating characteristic curve (ROC), calibration curve, and decision curve analysis (DCA). Results Age, duration of preoperative shoulder pain (DPSP), C-reactive protein (CRP), number of tear tendons, and American Shoulder and Elbow Surgical Score (ASES) were screened by LASSO regression as predictive factors for CPSP. These factors were then used to construct a chronic pain risk nomogram. The area under the curve (AUC) of the predictive and validation models were 0.756 (95% CI: 0.6386-0.8731) and 0.806 (95% CI: 0.6825-0.9291), respectively. Furthermore, the calibration curves and decision curve analysis (DCA) for both models indicated strong performance, affirming the reliability of this predictive model. Conclusion The CPSP risk model that has been developed exhibits strong predictive capabilities and practical utility. It offers valuable support to clinical healthcare professionals in making informed treatment decisions, reducing the unnecessary use of analgesic drugs, and optimizing the allocation of medical resources.
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Affiliation(s)
- Xiaomei Dai
- School of Nursing and School of Public Health, Yangzhou University, Yangzhou, People’s Republic of China
| | - Meijuan Yuan
- School of Nursing and School of Public Health, Yangzhou University, Yangzhou, People’s Republic of China
| | - Mengbo Dang
- Dalian Medical University, Dalian, People’s Republic of China
| | - Dianwei Liu
- Dalian Medical University, Dalian, People’s Republic of China
| | - Wenyong Fei
- Department of Orthopedics and Sports Medicine, Northern Jiangsu People’s Hospital, Affiliated to Yangzhou University, Yangzhou, People’s Republic of China
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Dos Santos NL, Lenert ME, Castillo ZW, Mody PH, Thompson LT, Burton MD. Age and sex drive differential behavioral and neuroimmune phenotypes during postoperative pain. Neurobiol Aging 2023; 123:129-144. [PMID: 36577640 PMCID: PMC9892227 DOI: 10.1016/j.neurobiolaging.2022.09.008] [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: 03/12/2022] [Revised: 09/08/2022] [Accepted: 09/14/2022] [Indexed: 11/24/2022]
Abstract
Surgical procedures in the geriatric population are steadily increasing, driven by improved healthcare technologies and longer lifespans. However, effective postoperative pain treatments are lacking, and this diminishes quality of life and recovery. Here we present one of the first preclinical studies to pursue sex- and age-specific differences in postoperative neuroimmune phenotypes and pain. We found that aged males, but not females, had a delayed onset of mechanical hypersensitivity post-surgery and faster resolution than young counterparts. This sex-specific age effect was accompanied by decreased paw innervation and increased local inflammation. Additionally, we find evidence of an age-dependent decrease in hyperalgesic priming and perioperative changes in nociceptor populations and spinal microglia in the aged. These findings suggest that impaired neuronal function and maladaptive inflammatory mechanisms influence postoperative pain development in advanced age. Elucidation of these neuroimmune phenotypes across age and sex enables the development of novel therapies that can be tailored for improved pain relief.
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Affiliation(s)
- Natalia L Dos Santos
- Neuroimmunology and Behavior Laboratory, Department of Neuroscience, School of Behavioral and Brain Sciences, Center for Advanced Pain Studies, University of Texas at Dallas, Richardson TX, USA
| | - Melissa E Lenert
- Neuroimmunology and Behavior Laboratory, Department of Neuroscience, School of Behavioral and Brain Sciences, Center for Advanced Pain Studies, University of Texas at Dallas, Richardson TX, USA
| | - Zachary W Castillo
- Neuroimmunology and Behavior Laboratory, Department of Neuroscience, School of Behavioral and Brain Sciences, Center for Advanced Pain Studies, University of Texas at Dallas, Richardson TX, USA
| | - Prapti H Mody
- Neuroimmunology and Behavior Laboratory, Department of Neuroscience, School of Behavioral and Brain Sciences, Center for Advanced Pain Studies, University of Texas at Dallas, Richardson TX, USA
| | - Lucien T Thompson
- Aging and Memory Research Laboratory, Department of Neuroscience, School of Behavioral and Brain Sciences, University of Texas at Dallas, Richardson TX, USA
| | - Michael D Burton
- Neuroimmunology and Behavior Laboratory, Department of Neuroscience, School of Behavioral and Brain Sciences, Center for Advanced Pain Studies, University of Texas at Dallas, Richardson TX, USA.
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Messina DN, Peralta ED, Seltzer AM, Patterson SI, Acosta CG. Age-dependent and modality-specific changes in the phenotypic markers Nav1.8, ASIC3, P2X3 and TRPM8 in male rat primary sensory neurons during healthy aging. Biogerontology 2023; 24:111-136. [PMID: 36478541 DOI: 10.1007/s10522-022-10000-3] [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: 07/26/2022] [Accepted: 11/08/2022] [Indexed: 12/12/2022]
Abstract
The effects during healthy aging of the tetrodotoxin-resistant voltage-gated sodium channel 1.8 (Nav1.8), the acid-sensing ion channel-3 (ASIC3), the purinergic-receptor 2X3 (P2X3) and transient receptor potential of melastatin-8 (TRPM8) on responses to non-noxious stimuli are poorly understood. These effects will influence the transferability to geriatric subjects of findings obtained using young animals. To evaluate the involvement of these functional markers in mechanical and cold sensitivity to non-noxious stimuli and their underlying mechanisms, we used a combination of immunohistochemistry and quantitation of immunostaining in sub-populations of neurons of the dorsal root ganglia (DRG), behavioral tests, pharmacological interventions and Western-blot in healthy male Wistar rats from 3 to 24 months of age. We found significantly decreased sensitivity to mechanical and cold stimuli in geriatric rats. These behavioural alterations occurred simultaneously with differing changes in the expression of Nav1.8, ASIC3, P2X3 and TRPM8 in the DRG at different ages. Using pharmacological blockade in vivo we demonstrated the involvement of ASIC3 and P2X3 in normal mechanosensation and of Nav1.8 and ASIC3 in cold sensitivity. Geriatric rats also exhibited reductions in the number of A-like large neurons and in the proportion of peptidergic to non-peptidergic neurons. The changes in normal sensory physiology in geriatric rats we report here strongly support the inclusion of aged rodents as an important group in the design of pre-clinical studies evaluating pain treatments.
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Affiliation(s)
- Diego N Messina
- Laboratorio de Estudios Neurobiológicos (LABENE), Facultad de Ciencias Médicas, Instituto de Histología y Embriología de Mendoza (IHEM-CONICET), Universidad Nacional de Cuyo, 5500, Mendoza, Argentina
| | - Emanuel D Peralta
- Laboratorio de Estudios Neurobiológicos (LABENE), Facultad de Ciencias Médicas, Instituto de Histología y Embriología de Mendoza (IHEM-CONICET), Universidad Nacional de Cuyo, 5500, Mendoza, Argentina
| | - Alicia M Seltzer
- Laboratorio de Estudios Neurobiológicos (LABENE), Facultad de Ciencias Médicas, Instituto de Histología y Embriología de Mendoza (IHEM-CONICET), Universidad Nacional de Cuyo, 5500, Mendoza, Argentina
| | - Sean I Patterson
- Instituto de Fisiología, Facultad de Ciencias Médicas, Universidad Nacional de Cuyo, Mendoza, Argentina.,Instituto de Histología y Embriología - CONICET, Universidad Nacional de Cuyo, 5500, Mendoza, Argentina
| | - Cristian G Acosta
- Laboratorio de Estudios Neurobiológicos (LABENE), Facultad de Ciencias Médicas, Instituto de Histología y Embriología de Mendoza (IHEM-CONICET), Universidad Nacional de Cuyo, 5500, Mendoza, Argentina. .,Histology Laboratory 107, IHEM-Faculty of Medical Sciences, National University of Cuyo, Av. del Libertador 80, 5500, Mendoza, Argentina.
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Abstract
BACKGROUND As the population ages, the number of elderly people undergoing surgery increases. Literature on the incidence and intensity of postoperative pain in the elderly is conflicting. This study examines associations between age and pain-related patient reported outcomes and perioperative pain management in a dataset of surgical patients undergoing four common surgeries: spinal surgery, hip or knee replacement, or laparoscopic cholecystectomy. Based on the authors' clinical experience, they hypothesize that pain scores are lower in older patients. METHODS In this retrospective cohort, study data were collected between 2010 and 2018 as part of the international PAIN OUT program. Patients filled out the International Pain Outcomes Questionnaire on postoperative day 1. RESULTS A total of 11,510 patients from 26 countries, 59% female, with a mean age of 62 yr, underwent one of the aforementioned types of surgery. Large variation was detected within each age group for worst pain, yet for each surgical procedure, mean scores decreased significantly with age (mean Numeric Rating Scale range, 6.3 to 7.3; β = -0.2 per decade; P ≤ 0.001), representing a decrease of 1.3 Numeric Rating Scale points across a lifespan. The interference of pain with activities in bed, sleep, breathing deeply or coughing, nausea, drowsiness, anxiety, helplessness, opioid administration on the ward, and wish for more pain treatment also decreases with age for two or more of the procedures. Across the procedures, patients reported being in severe pain on postoperative day one 26 to 38% of the time, and pain interfered moderately to severely with movement. CONCLUSIONS The authors' findings indicate that postoperative pain decreases with increasing age. The change is, however, small and of questionable clinical significance. Additionally, there are still too many patients, at any age, undergoing common surgeries who suffer from moderate to severe pain, which interferes with function, supporting the need for tailoring care to the individual patient. EDITOR’S PERSPECTIVE
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Tran PV, Johns ME, McAdams B, Abrahante JE, Simone DA, Banik RK. Global transcriptome analysis of rat dorsal root ganglia to identify molecular pathways involved in incisional pain. Mol Pain 2021; 16:1744806920956480. [PMID: 32909881 PMCID: PMC7493244 DOI: 10.1177/1744806920956480] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
To develop non-opioid therapies for postoperative incisional pain, we must understand its underlying molecular mechanisms. In this study, we assessed global gene expression changes in dorsal root ganglia neurons in a model of incisional pain to identify pertinent molecular pathways. Male, Sprague-Dawley rats underwent infiltration of 1% capsaicin or vehicle into the plantar hind paw (n = 6-9/group) 30 min before plantar incision. Twenty-four hours after incision or sham (control) surgery, lumbar L4-L6 dorsal root ganglias were collected from rats pretreated with vehicle or capsaicin. RNA was isolated and sequenced by next generation sequencing. The genes were then annotated to functional networks using a knowledge-based database, Ingenuity Pathway Analysis. In rats pretreated with vehicle, plantar incision caused robust hyperalgesia, up-regulated 36 genes and downregulated 90 genes in dorsal root ganglias one day after plantar incision. Capsaicin pretreatment attenuated pain behaviors, caused localized denervation of the dermis and epidermis, and prevented the incision-induced changes in 99 of 126 genes. The pathway analyses showed altered gene networks related to increased pro-inflammatory and decreased anti-inflammatory responses in dorsal root ganglias. Insulin-like growth factor signaling was identified as one of the major gene networks involved in the development of incisional pain. Expression of insulin-like growth factor -2 and IGFBP6 in dorsal root ganglia were independently validated with quantitative real-time polymerase chain reaction. We discovered a distinct subset of dorsal root ganglia genes and three key signaling pathways that are altered 24 h after plantar incision but are unchanged when incision was made after capsaicin infiltration in the skin. Further exploration of molecular mechanisms of incisional pain may yield novel therapeutic targets.
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Affiliation(s)
- Phu V Tran
- Department of Pediatrics, School of Medicine, University of Minnesota, Minneapolis, MN, USA
| | - Malcolm E Johns
- Department of Anesthesiology, School of Medicine, University of Minnesota, Minneapolis, MN, USA
| | - Brian McAdams
- Department of Diagnostic and Biological Sciences, School of Dentistry, University of Minnesota, Minneapolis, MN, USA
| | - Juan E Abrahante
- Informatics Institute, University of Minnesota, Minneapolis, MN, USA
| | - Donald A Simone
- Department of Diagnostic and Biological Sciences, School of Dentistry, University of Minnesota, Minneapolis, MN, USA
| | - Ratan K Banik
- Department of Anesthesiology, School of Medicine, University of Minnesota, Minneapolis, MN, USA
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Uhelski ML, McAdams B, Johns ME, Kabadi RA, Simone DA, Banik RK. Lack of relationship between epidermal denervation by capsaicin and incisional pain behaviours: A laser scanning confocal microscopy study in rats. Eur J Pain 2020; 24:1197-1208. [DOI: 10.1002/ejp.1564] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 03/16/2020] [Accepted: 03/19/2020] [Indexed: 12/21/2022]
Affiliation(s)
- Megan L. Uhelski
- Department of Diagnostic and Biological Sciences School of Dentistry University of Minnesota Minneapolis MN USA
| | - Brian McAdams
- Department of Diagnostic and Biological Sciences School of Dentistry University of Minnesota Minneapolis MN USA
| | - Malcolm E. Johns
- Department of Anesthesiology School of Medicine University of Minnesota Minneapolis MN USA
| | - Rajiv A. Kabadi
- NJ Neuroscience Institute and Seton Hall UniversitySchool of Graduate Medical EducationJFK Medical Center Edison NJ USA
| | - Donald A. Simone
- Department of Diagnostic and Biological Sciences School of Dentistry University of Minnesota Minneapolis MN USA
| | - Ratan K. Banik
- Department of Anesthesiology School of Medicine University of Minnesota Minneapolis MN USA
- NJ Neuroscience Institute and Seton Hall UniversitySchool of Graduate Medical EducationJFK Medical Center Edison NJ USA
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