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Chronic pain is one of the most common, costly, and potentially debilitating health issues facing older adults, with attributable costs exceeding $600 billion annually. The prevalence of pain in humans increases with advancing age. Yet, the contributions of sex differences, age-related chronic inflammation, and changes in neuroplasticity to the overall experience of pain are less clear, given that opposing processes in aging interact. This review article examines and summarizes pre-clinical research and clinical data on chronic pain among older adults to identify knowledge gaps and provide the base for future research and clinical practice. We provide evidence to suggest that neurodegenerative conditions engender a loss of neural plasticity involved in pain response, whereas low-grade inflammation in aging increases CNS sensitization but decreases PNS sensitivity. Insights from preclinical studies are needed to answer mechanistic questions. However, the selection of appropriate aging models presents a challenge that has resulted in conflicting data regarding pain processing and behavioral outcomes that are difficult to translate to humans.
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http://dx.doi.org/10.1177/17448069231203090 | DOI Listing |
Vet Surg
September 2025
Department of Large Animal Medicine, College of Veterinary Medicine, University of Georgia, Athens, Georgia, USA.
Objective: To describe the long-term outcome of a horse that underwent a standing, ultrasound-guided, minimally invasive, biceps brachii tenotomy.
Study Design: Case report.
Animal: A 17-year-old Tennessee Walking Horse gelding.
Brain Behav
September 2025
Department of Neuroscience, School of Translational Medicine, Monash University, Melbourne, Australia.
Background: Migraine pathophysiology involves a constellation of metabolic abnormalities. These interlinked contributory factors include mitochondrial dysfunction, an altered gut microbiome, neuroinflammation, oxidative stress, weight imbalance, and altered glucose metabolism. The ketogenic diet is an emerging therapy which may restore hypometabolism seen in chronic migraine.
View Article and Find Full Text PDFEur J Neurol
September 2025
Pain Treatment and Evaluation Center, CHU Timone, Assistance Publique des Hôpitaux de Marseille, Marseille, France.
Background: Neuropathic pain (NP) is frequently resistant to conventional treatments. Botulinum toxin type A (BT-A) is a recommended option for focal peripheral NP, but the dynamics of its effect in real-life conditions remain poorly characterized.
Objective: To assess BT-A efficacy in a real-world study of patients with focal peripheral NP, over a 1-year follow-up period.
Future Med Chem
September 2025
Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Anadolu University, Eskişehir, Turkey.
In this review, the primary aim is to examine non-azole ring systems that have analgesic activity and, where applicable, to establish structure - activity relationships (SARs) with the nine major pathways, prostaglandin synthesis inhibition, opioid receptor modulation, sodium channel blockade, enhancement of serotonin and norepinephrine levels, cannabinoid receptor (CBR) binding, N-methyl-D-aspartate (NMDA) receptor antagonism, transient receptor potential cation channel subfamily V member 1 (TRPV1) antagonism, and P2X purinergic receptor blockade, have been described for pain relief. Analgesic effects have been observed in compounds containing ring systems such as piperidine, piperazine, pyridine, pyridazine, pyrazine, morpholine, thiomorpholine, pyran, thiopyran, indane, benzofuran, benzothiophene, quinoline, quinazoline, and chromene. These ring systems were classified in the whole study, first according to their molecular weights and then by bioisosteric similarity as same as first part.
View Article and Find Full Text PDFEur J Pediatr
September 2025
Paediatric Pain and Palliative Care Service, Department of Women's and Children's Health, University Hospital of Padua, Padua, Italy.
Purpose: This study aimed to describe the structure, patient characteristics, and preliminary clinical outcomes of a dedicated interdisciplinary outpatient clinic for paediatric chronic and complex pain in Italy, with a focus on the feasibility of implementing a biopsychosocial care model.
Methods: We conducted a retrospective review of all patients referred to the Paediatric Specialised Pain Clinic of the University of Padua between January 2023 and May 2024. Data on demographics, clinical diagnoses, pain characteristics, treatments, and follow-up outcomes were collected.