Alzheimer's Disease

Before his death, Stewart suffered from both Alzheimer's disease and Lewy body dementia.

The coexistence of Alzheimer's disease and Lewy body dementia is quite common in autopsy studies and is known as "mixed dementia."

Lewy body dementia ranks second only to Alzheimer's disease among causes of dementia.

In advanced periodontitis, pathogenic bacteria can enter the bloodstream and worsen systemic diseases, including cardiovascular disease, kidney disease, diabetes and arthritis; in some cases they may aggravate neurodegenerative diseases such as Alzheimer's disease, or be linked to cancer.

A study that sparked discussion in the Reddit community proposes combining electroencephalography (EEG) with spiking neural networks (SNNs) and using biophysical simulation to learn disease signatures of Alzheimer's disease.

Common strategies for narrowing the domain gap between simulated and real data include domain adaptation, adversarial training, and fine-tuning with a small amount of real data, but these methods require real labeled data, which is precisely a scarce resource in the AD scenario.

The core approach of the study is: use biophysical simulation to generate neural activity data with known AD pathological features, then train an SNN to identify the corresponding disease signatures from EEG.

Beta-amyloid is a small peptide fragment produced by enzymatic cleavage of amyloid precursor protein (APP); under normal physiological conditions it can be cleared, but in the brains of Alzheimer's disease patients it abnormally aggregates to form oligomers and plaques.

Plaques may be an important marker and one of the driving factors of the disease process, but symptom manifestation is modulated by multiple factors such as sleep, inflammation, and vascular health.

A new study claims that restoring just two hours of sleep can improve certain functional performance without clearing brain amyloid plaques.

A natural experiment based on an age cutoff found that people eligible for the shingles vaccine appeared to have a lower chance of developing Alzheimer's disease.

There is an observational association between shingles vaccination and a reduced risk of Alzheimer's disease, but the mechanism is unclear and it is not yet sufficient as a basis for clinical recommendations.

Risk factors for Alzheimer's disease include age and genes (unchangeable) as well as lifestyle and behavior (controllable).

There is an association between cardiovascular health and brain health, and taking good care of cardiovascular health early may delay or prevent the onset of Alzheimer's disease.

All of the above hypotheses about the protective mechanism of the shingles vaccine lack direct human causal evidence.

Among FDA-approved Alzheimer's drugs currently available, only two can genuinely slow disease progression, and not a single one can stop or reverse the condition

The core concept of this experimental surgery involves "brain drainage," reducing symptoms by improving the clearance of fluid and metabolic waste from the brain

Even when carrying human disease-causing gene mutations, mice often fail to naturally recapitulate the complete Alzheimer's disease pathological process and cognitive decline.

Alzheimer's disease affects patients' lexical-semantic organization ability and alters their speech production, such as the occurrence of abnormal pauses and word lengthening.

For Alzheimer's disease diagnosis tasks, fixed selection of the middle slice may lose critical diagnostic information, because lesion information (such as hippocampal atrophy and ventricular enlargement) may be distributed across non-middle slices.