Results 101 to 110 of about 128,124 (248)

Palatable‐Food–Driven Top‐Down Circuit Inhibits PVNCRF Activity to Mitigate Stress Via Peri‐PVNCRFR1 Neurons

open access: yesAdvanced Science, EarlyView.
Palatable food alleviates stress and prevents anxiety. This study uncovers a dedicated neural pathway: dopamine release in the PFC activates D1R neurons, whose projections to the peri‐PVN engage a population of anxiolytic CRFR1 neurons. These neurons then inhibit stress‐induced hyperactivity of PVNCRF neurons, providing a circuit‐level explanation for ...
Yuchuan Hong   +12 more
wiley   +1 more source

Compression suture: A method for simulating intervertebral disc degeneration in rats induced by excessive loading

open access: yesAnimal Models and Experimental Medicine, EarlyView.
In the compression suture group, a 5‐mm‐wide tail skin was removed, and then the defect was sutured to apply compressive force to the intervertebral disc. In the sham group, only the 5‐mm‐wide tail skin was removed without a compression suture. Compression suturing triggers apoptosis, inflammatory response, and imbalance of extracellular matrix ...
Xuening Liu   +4 more
wiley   +1 more source

Establishment and multifaceted characterization of a graded spinal cord injury model based on graduated impact depth

open access: yesAnimal Models and Experimental Medicine, EarlyView.
We established a graded spinal cord injury (SCI) model based on graduated impact depth, which was subsequently characterized across multiple dimensions, including locomotor function, imaging, histology, and transcriptomic profiles. We further identified transcriptomic changes in graded SCI at different time points postinjury and investigated the ...
Gang Zhou   +6 more
wiley   +1 more source

Optimization and verification of high‐fat diet formulation for establishing a rat model of obesity‐related precocious puberty

open access: yesAnimal Models and Experimental Medicine, EarlyView.
We identified 45% HFD as the optimal formulation to establish a juvenile rat model of obesity‐related precocious puberty. It elicits robust phenotypic (early vaginal opening, obesity), histological (advanced ovarian development), and endocrine (elevated HPG axis hormones) alterations, with leptin‐mediated GnRH secretion as a core mechanistic driver ...
Jiayi Gong   +5 more
wiley   +1 more source

Molecular mechanism of ischemic postconditioning in promoting diabetic ischemic brain injury repair via the microRNA‐34a–BDNF–SIX3 signaling axis

open access: yesAnimal Models and Experimental Medicine, EarlyView.
Diabetes combined with ischemic stroke (DMIS) exacerbates brain infarct size and neuronal damage compared to nondiabetic ischemic stroke (IS). This study reveals that microRNA‐34a (miR‐34a) plays a key role in DMIS pathogenesis: miR‐34a directly targets and suppresses brain‐derived neurotrophic factor (BDNF) and Sine oculis homeobox 3 (SIX3), promoting
Ling Zhao   +5 more
wiley   +1 more source

Scalp electroacupuncture targeting trigeminal nerve activation alleviates post‐traumatic stress disorder–induced depression and neuroinflammation in mice

open access: yesAnimal Models and Experimental Medicine, EarlyView.
Scalp electroacupuncture (SA) through activation of the trigeminal pathway exerts anti‐inflammatory, antidepressant, and anxiolytic effects in an animal model of post‐traumatic stress disorder induced by single prolonged stress. This suggests that SA is involved in neuroinflammation and changes in brain‐derived neurotrophic factor protein through the ...
Bombi Lee   +3 more
wiley   +1 more source

Metformin enhances external urethral sphincter integrity and restores continence via AMPK activation in a rat model of stress urinary incontinence

open access: yesAnimal Models and Experimental Medicine, EarlyView.
The pathogenesis of stress urinary incontinence (SUI) is intimately associated with injury to the external urethral sphincter (EUS). In this study, we established an SUI model induced by double vaginal distension and demonstrated that metformin treatment activated the AMPK signaling in the EUS tissue.
Yuting Xu   +7 more
wiley   +1 more source

A high‐fat diet with vitamin D and propylthiouracil produces a pro‐atherogenic phenotype in rats

open access: yesAnimal Models and Experimental Medicine, EarlyView.
Male Sprague–Dawley rats received a cholesterol‐rich high‐fat diet supplemented with vitamin D and propylthiouracil for 11 weeks. The model induced dyslipidemia (increased total cholesterol/low‐density lipoprotein, decreased triglycerides), inflammation (increased interleukin‐6 and serum amyloid A), hypercalcemia, and reduced circulating endothelial ...
Angélique Lewies   +3 more
wiley   +1 more source

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