Key result
Early-stage Alzheimer's disease in mice is linked to autonomic imbalance driven by increased sympathetic activity.
Why the study?
The effects of Alzheimer's disease on cardiac and autonomic nervous function and the feasibility of ECG monitoring in AD progression were unclear.
Does Alzheimer's disease progression alter cardiac autonomic function as measured by HRV in a mouse model?
Population
APP/PS1 double transgenic mice with Alzheimer's disease
Comparison
Alzheimer's disease progression at varying severity levels
Design
Preclinical study using Morris water maze and non-invasive ECG analysis
Follow-up
From 5 months of age through disease progression
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Supports HRV monitoring in early AD; hypothesis-generating for human autonomic therapies.
Does Alzheimer's disease progression alter cardiac autonomic function as measured by HRV in a mouse model?
Early-stage Alzheimer's disease in a mouse model is associated with autonomic imbalance characterized by sympathetic overactivity and parasympathetic withdrawal, detectable via ECG-based HRV analysis.
A 2022 study studied Alzheimer's disease. Alzheimer's disease (APP/PS1 double transgenic mutation) was evaluated on Changes in ECG intervals and heart rate variability (HRV). In APP/PS1 transgenic mice, early-stage Alzheimer's disease was associated with imbalanced autonomic regulation, characterized by increased sympathetic activity and inhibited parasympathetic activity.
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