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An optogenetic mouse model of hindlimb spasticity after spinal cord injury.
Exp Neurol
January 2025
Brain and Mind Research Institute, Department of Biology, University of Ottawa, Ottawa, Ontario, Canada. Electronic address:
Spasticity is a common comorbidity of spinal cord injury (SCI), disrupting motor function and resulting in significant discomfort. While elements of post-SCI spasticity can be assessed using pre-clinical SCI models, the robust measurement of spasticity severity can be difficult due to its periodic and spontaneous appearance. Electrical stimulation of sensory afferents can elicit spasticity-associated motor responses, such as spasms; however, placing surface electrodes on the hindlimbs of awake animals can induce stress or encumbrance that could influence the expression of behaviour.
View Article and Find Full Text PDFMetabolic Reprogramming of Neutrophils in the Tumor Microenvironment: Emerging Therapeutic Targets.
Cancer Lett
January 2025
Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200025, China. Electronic address:
Neutrophils are pivotal in the immune system and have been recognized as significant contributors to cancer development and progression. These cells undergo metabolic reprogramming in response to various stimulus, including infections, diseases, and the tumor microenvironment (TME). Under normal conditions, neutrophils primarily rely on aerobic glucose metabolism for energy production.
View Article and Find Full Text PDFInsights into proprioceptive acuity assessed with a dynamic joint position reproduction task.
J Electromyogr Kinesiol
January 2025
Centro Polifunzionale di Scienze Motorie, Università degli Studi di Genova, Genoa, Italy; Department of Experimental Medicine, Section of Human Physiology, Università degli Studi di Genova, Genoa, Italy.
This study investigated proprioceptive acuity using the conventional joint position reproduction (JPR) task and a modified version, the Dynamic JPR task (D-JPR), during Concentric and Eccentric muscle contractions. Seventeen participants were recruited and received a tactile stimulus indicating the position cue at Initial (INI), Intermediate (INT), and Final (FIN) phases of movements, during either the concentric or eccentric phases. After the movement, they replicated the position where they received the stimulus.
View Article and Find Full Text PDFEarly Spatio-Temporal and Cognitive Deficits in Alzheimer's Disease.
J Clin Med
January 2025
Department of Psychology, Università degli Studi della Campania "L. Vanvitelli", 81100 Caserta, Italy.
Mental representation of spatial information relies on egocentric (body-based) and allocentric (environment-based) frames of reference. Research showed that spatial memory deteriorates as Alzheimer's disease (AD) progresses and that allocentric spatial memory is among the earliest impaired areas. Most studies have been conducted in static situations despite the dynamic nature of real-world spatial processing.
View Article and Find Full Text PDFVarroa Volatiles Offer Chemical Cues to Honey Bees for Initial Parasitic Recognition.
Biomolecules
January 2025
Key Laboratory of Efficient Utilization of Non-Grain Feed Resources (Co-Construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Shandong Provincial Key Laboratory of Animal Nutrition and Efficient Feeding, College of Animal Science and Technology, Shandong Agricultural University, Tai'an 271018, China.
Olfaction mediated by the antennae is a vital sensory modality for arthropods and could be applied as a tool in pest control. The ectoparasitic mite poses a significant threat to the health of the honey bee worldwide and has garnered global attention. To better understand the chemical ecology of this host-parasite relationship, we collected and characterized the volatile organic compounds (VOCs) from and used electroantennography (EAG) to record the responses of honey bee ( and ) antennae to the different VOCs.
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