نتایج جستجو برای: brain aging

تعداد نتایج: 567119  

2011
Jung Hoon Choi Moo-Ho Won

The hippocampus plays important roles in the regulation and combination of short and long term memory and spatial navigation with other brain centers. Aging is accompanied by a functional decline of the hippocampus and degenerative disease. Microglia are major immune cells in the central nervous system and response to degenerative changes in the aged brain. In this respect, functional and morph...

2013
Jim M. Monti Michelle W. Voss Ari Pence Edward McAuley Arthur F. Kramer Neal J. Cohen

Evidence suggests that a history of head trauma is associated with memory deficits later in life. The majority of previous research has focused on moderate-to-severe traumatic brain injury (TBI), but recent evidence suggests that even a mild TBI (mTBI) can interact with the aging process and produce reductions in memory performance. This study examined the association of mTBI with memory and th...

Journal: :Frontiers in Human Neuroscience 2021

Cross-sectional studies indicate that normal aging is accompanied by decreases in brain structure. Longitudinal studies, however, are relatively rare and inconsistent regarding their outcomes. Particularly the heterogeneity of methods, sample characteristics high inter-individual variability older adults prevent deduction general trends. Therefore, current study aimed to compare longitudinal ag...

Introduction: Tissue engineering by using decellularized tissues has been attracted attention of researchers in the regenerative medicine. Extra cellular matrix (ECM) is a secretory product of cells inside the tissues with supportive and regulatory function for homing cells. ECM contains glycosaminoglycans (GAGs) and fibrous proteins. Each particular tissue has its unique ECM, especially brain,...

2011
Roberta Lizio Fabrizio Vecchio Giovanni B. Frisoni Raffaele Ferri Guido Rodriguez Claudio Babiloni

Physiological brain aging is characterized by synapses loss and neurodegeneration that slowly lead to an age-related decline of cognition. Neural/synaptic redundancy and plastic remodelling of brain networking, also due to mental and physical training, promotes maintenance of brain activity in healthy elderly subjects for everyday life and good social behaviour and intellectual capabilities. Ho...

Journal: :Frontiers in Neuroscience 2021

Over the past decades, human life span has dramatically increased, and therefore, a steady increase in diseases associated with age (such as Alzheimer’s disease Parkinson’s disease) is expected. In these neurodegenerative diseases, there cognitive decline memory loss, which accompany increased systemic inflammation, inflamm-aging, insulin resistance. Despite numerous studies of age-related path...

2016
Yuan-Man Hsu Mei-Chin Yin

BACKGROUND Effects of eicosapentaenoic acid (EPA, 20:5) and docosahexaenoic acid (DHA, 22:6) upon fatty acid composition, oxidative and inflammatory factors and aging proteins in brain of d-galactose (DG) treated aging mice were examined. METHODS Each fatty acid at 7 mg/kg BW/week was supplied for 8 weeks. Brain aging was induced by DG treatment (100 mg/kg body weight) via daily subcutaneous ...

Journal: :Science 2014
Angela Gutchess

Cognitive neuroscience has revealed aging of the human brain to be rich in reorganization and change. Neuroimaging results have recast our framework around cognitive aging from one of decline to one emphasizing plasticity. Current methods use neurostimulation approaches to manipulate brain function, providing a direct test of the ways that the brain differently contributes to task performance f...

Journal: :Human brain mapping 2014
Y Rathi O Pasternak P Savadjiev O Michailovich S Bouix M Kubicki C-F Westin N Makris M E Shenton

Many studies have observed altered neurofunctional and structural organization in the aging brain. These observations from functional neuroimaging studies show a shift in brain activity from the posterior to the anterior regions with aging (PASA model), as well as a decrease in cortical thickness, which is more pronounced in the frontal lobe followed by the parietal, occipital, and temporal lob...

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