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Evaluating EEG complexity and spectral signatures in Alzheimer's disease and frontotemporal dementia: evidence for rostrocaudal asymmetry

1 year ago
Accurate classification of neurodegenerative disorders remains a challenge in neuroscience. Using open-source electroencephalography (EEG) data, we investigated electrophysiological signatures to differentiate frontotemporal dementia (FTD) from Alzheimer's disease (AD) via complexity measures. Traditional relative band power analysis showed consistent increases in lower-frequency activity but did not distinguish the two disorders after correction. In contrast, fractal dimension and long-range...
Kassra Ghassemkhani

Boosting angiotensin-converting enzyme (ACE) in microglia protects against Alzheimer's disease in 5xFAD mice

1 year ago
Genome-wide association studies have identified many gene polymorphisms associated with an increased risk of developing late-onset Alzheimer's disease (LOAD). Many of these LOAD risk-associated alleles alter disease pathogenesis by influencing innate immune responses and lipid metabolism of microglia (MG). Here we show that boosting the expression of angiotensin-converting enzyme (ACE), a genome-wide association study LOAD risk-associated gene product, specifically in MG, reduces amyloid-β (Aβ)...
Andrew R Gomez

cGAS-STING are responsible for premature aging of telomerase-deficient zebrafish

1 year ago
Telomere shortening occurs in multiple tissues throughout aging. When telomeres become critically short, they trigger DNA-damage responses and p53 stabilization, leading to apoptosis or replicative senescence. In vitro, cells with short telomeres activate the cGAS-STING innate immune pathway resulting in type-I interferon-based inflammation and senescence. However, the consequences of these events for the organism are not yet understood. Here, we show that sting is responsible for premature...
Naz Şerifoğlu

Healthy ageing and psychological resilience among the empty-nest older adults: a cross-sectional survey in China

1 year ago
CONCLUSIONS: Empty-nest older adults in the Chinese community show a desirable level of healthy ageing and psychological resilience, yet there is still room for improvement. Those who live with their spouses, have retirement pensions, engage regularly in social activities, and demonstrate strong psychological resilience tend to achieve a higher level of healthy ageing. Policies and strategies could focus on creating a more supportive environment, reducing health inequities among empty-nest older...
Chunhong Shi