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| http://dx.doi.org/10.1002/nep3.25 | DOI Listing |
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Gamma oscillations are disrupted in various neurological disorders, including Alzheimer's disease (AD). In AD mouse models, non-invasive audiovisual stimulation (AuViS) at 40 Hz enhances gamma oscillations, clears amyloid-beta, and improves cognition. We investigated mechanisms of circuit remodeling underlying these restorative effects by leveraging the sensitivity of hippocampal neurogenesis to activity in middle-aged wild-type mice.
View Article and Find Full Text PDFPhysical activity (PA), including sedentary behavior, is associated with many diseases, including Alzheimer's disease and all-cause dementia. However, the specific biological mechanisms through which PA protects against disease are not entirely understood. To address this knowledge gap, we first assessed the conventional observational associations of three self-reported and three device-based PA measures with circulating levels of 2,911 plasma proteins measured in the UK Biobank (n =39,160) and assessed functional enrichment of identified proteins.
View Article and Find Full Text PDFHarmony in Motion: The Role of Exercise in Orchestrating Neuroprotection for Individuals with Alzheimer's Disease and Diabetes Examined from a Psychological Perspective.
Curr Pharm Biotechnol
January 2025
Hefei National Laboratory for Physical Sciences at the Microscale, School of Life Sciences, University of Science and Technology of China, Hefei 230027, China.
According to epidemiological studies, diabetes is more common in patients with AD, which suggests that diabetes is a significant risk factor for AD. Accelerating brain cell degeneration, worsening cognitive decline, and increasing susceptibility to AD can be attributed to pathogenic mechanisms linked to diabetes, such as impaired insulin signaling in the brain, neuroinflammation, oxidative stress, mitochondrial dysfunction, and vascular impairment. These factors can also lead to the accumulation of β-amyloid and tau protein phosphorylation.
View Article and Find Full Text PDFIntroduction: Homeobox genes are highly conserved and play critical roles in brain development. Recently we have found that mammals have an additional fragment of approximately 20 amino acids in Emx1 and a poly-(Ala)6-7 in Emx2, compared to other amniotes. It has been shown that Emx1 and Emx2 have synergistic actions in the brain development.
View Article and Find Full Text PDFEffects of exercise and transient estradiol exposure in middle-aged female rats.
Horm Behav
January 2025
Department of Psychology, University of Houston, Houston, TX 77204-5022, United States; Houston Methodist Research Institute, Houston, TX 77030, United States.
The benefits of estrogen treatment on cognition in middle-aged and older women are dependent on many factors, including the timing of treatment. Moreover, the potential interactive effects with other lifestyle factors, such as exercise, are poorly understood. In this study, we tested for lasting benefits of independent and combined treatment with estrogen and voluntary exercise initiated in midlife, using a rat model of menopause.
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