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It has long been recognized that men and women have different degrees of susceptibility to chronic pain. Greater recognition of the sexual dimorphism in chronic pain has resulted in increasing numbers of both clinical and preclinical studies that have identified factors and mechanisms underlying sex differences in pain sensitization. Here, we review sexually dimorphic pain phenotypes in various research animal models and factors involved in the sex difference in pain phenotypes. We further discuss putative mechanisms for the sexual dimorphism in pain sensitization, which involves sex hormones, spinal cord microglia, and peripheral immune cells. Elucidating the sexually dimorphic mechanism of pain sensitization may provide important clinical implications and aid the development of sex-specific therapeutic strategies to treat chronic pain.
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http://dx.doi.org/10.3390/cells12162028 | DOI Listing |
J Neuroimaging
September 2025
Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, Connecticut, USA.
Background And Purpose: Socioeconomic determinants of health impact childhood development and adult health outcomes. One key aspect is the physical environment and neighborhood where children live and grow. Emerging evidence suggests that neighborhood deprivation, often measured by the Area Deprivation Index (ADI), may influence neurodevelopment, but longitudinal and multimodal neuroimaging analyses remain limited.
View Article and Find Full Text PDFEur J Vasc Endovasc Surg
September 2025
Department of Surgery, Division of Vascular Surgery, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands. Electronic address:
Objective: Despite the growing number of vascular interventions performed in elderly patients, the functional outcomes regarding frailty remain unclear. This study aimed to evaluate and compare the short term functional outcomes in pre-operative frail vs. non-frail patients following open vs.
View Article and Find Full Text PDFPhysiol Behav
September 2025
Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran; Cognitive Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran.
The barrel cortex is a specialized region of the primary somatosensory cortex that processes tactile information from whiskers. This study investigates how tactile stimulation (TS) affects excitatory receptive fields and surrounds suppression in barrel cortex neurons of male and female autistic-like rats, using various whisker displacement protocols. The animals were categorized into control, Valproic acid pre-treated (Val), and Val-TS treatment groups.
View Article and Find Full Text PDFOsteoarthritis Cartilage
September 2025
Department of Orthopaedic Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA; Department of Bioengineering, University of Pittsburgh Swanson School of Engineering, Pittsburgh, PA, USA; Orland Bethel Family Musculoskeletal Research Center, University of Pittsburgh School of Med
Objective: Previous studies in our lab demonstrated that estrogen receptor-α (ERα) levels in cartilage decreased with osteoarthritis (OA). We also defined the essential role of ERα in maintaining the health of chondrocytes. However, most of the studies were conducted in vitro, and the physiological link between ERα loss and cartilage degradation has not been demonstrated using animal models.
View Article and Find Full Text PDFJ Pain
September 2025
Department of Orthopaedic Surgery, Duke University School of Medicine, Durham, NC, USA; Duke Clinical Research Institute, Duke University School of Medicine, Durham, NC, USA.
In this longitudinal cohort study, we used nationally representative data from the U.S. National Health Interview Survey (n = 7,826 for chronic pain; n = 9,195 for high-impact chronic pain [HICP]) to examine the association of trouble sleeping and tiredness with 1-year incidence of chronic pain and HICP in U.
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