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Dimethyl Fumarate attenuates synovial inflammation, reduces nociception, and inhibits the development of post-traumatic osteoarthritis.
Biomed Pharmacother
January 2025
Joseph Maxwell Cleland Atlanta VA Medical Center, Decatur, GA 30033, USA; Department of Orthopaedics, Emory Musculoskeletal Institute, Emory University, Atlanta, GA 30329, USA. Electronic address:
There is currently no cure or disease-modifying treatment for post-traumatic osteoarthritis (PTOA). This study aims to assess the efficacy of dimethyl fumarate (DMF), a US-FDA approved drug for multiple sclerosis, as a treatment for PTOA. PTOA was induced in male Lewis rats by medial meniscal transection (MMT) surgery, and DMF was intra-articularly administered once, one week following surgery.
View Article and Find Full Text PDFCatastrophizing as a Predictor for Pain Perception and Disability Among Patients Undergoing Spinal Cord Stimulation.
Medicina (Kaunas)
January 2025
Anaesthesiology Service, Pain Unit, Complejo Asistencial Universitario de Salamanca (CAUSA), 37007 Salamanca, Spain.
: The International Society for Modulation defines persistent spinal pain syndrome type 2 (PSPS-type 2), formerly known as failed back surgery syndrome, as a condition where patients continue to experience pain or develop new pain following spinal surgery intended to alleviate back or lower-limb discomfort. PSPS-type 2 is characterized by pain and significant disability, affecting quality of life. Spinal cord stimulation has proven effective in treating this syndrome, although the role of psychological factors, such as pain catastrophizing and central sensitization, remain unclear.
View Article and Find Full Text PDFSigma-1 Receptor Modulates CFA-Induced Inflammatory Pain via Sodium Channels in Small DRG Neurons.
Biomolecules
January 2025
Department of Physiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Rd., Wuhan 430030, China.
The sigma-1 receptor (Sig-1R) has emerged as a significant target in the realm of pain management and has been the subject of extensive research. Nonetheless, its specific function in inflammatory pain within dorsal root ganglion (DRG) neurons remains inadequately elucidated. This study utilized whole-cell patch clamp techniques, single-cell real-time PCR, and immunohistochemistry to examine the influence of Sig-1R on inflammatory pain induced by complete Freund's adjuvant (CFA) in a rat model.
View Article and Find Full Text PDFOnonin's Antagonistic Activity towards TRPV1: Insights from Molecular Dynamics and Capsaicin-Evoked Calcium Response in DRG Neurons.
Curr Med Chem
January 2025
Department of Anatomy and Histology, School of Medicine, The University of Jordan, 11942, Amman, Jordan.
Background: The search for effective painkillers has led to intensive research, with a particular focus on the transient receptor potential vanilloid-1 (TRPV1) channel as a possible target.
Methods: One promising candidate is ononin, which is investigated for its binding with TRPV1 through a 200-ns molecular dynamic simulation and analysed via root-meansquare deviation (RMSD), root-mean-square fluctuation (RMSF), hydrogen-bond interactions, radius of gyration (RadGyr), and MM-PBSA energy calculations. The results were further validated experimentally via calcium imaging studies.
Complex Regional Pain Syndrome: Diagnosis, Pathophysiology, and Treatment Approaches.
Cureus
December 2024
Neurosurgery, Fluminense Federal University, Niterói, BRA.
Complex regional pain syndrome (CRPS) is a chronic pain condition characterized by significant sensory, motor, and autonomic dysfunction, often following trauma or nerve injury. Historically known as causalgia and reflex sympathetic dystrophy, CRPS manifests as severe, disproportionate pain, often accompanied by hyperalgesia, allodynia, trophic changes, and motor impairments. Classified into type I (without nerve injury) and type II (associated with nerve damage), CRPS exhibits a complex pathophysiology involving peripheral and central sensitization, neurogenic inflammation, maladaptive brain plasticity, and potential autoimmune and psychological influences.
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