Untitled Flashcard Set

What is Alzheimer's Disease?\n\n

Alzheimer's Disease is the most common cause of dementia, characterized as a progressive, irreversible brain disorder that affects memory, thinking, and behavior, leading to severe cognitive decline.

Key features of Alzheimer's Disease\n\n

The key features of Alzheimer's Disease include memory loss, confusion, personality changes, cognitive decline, and difficulty with language and problem-solving.

Age-related risk factor for Alzheimer's Disease\n\n

The risk of developing Alzheimer's Disease increases dramatically with age, particularly after 65; approximately 50% of people over 85 are affected, highlighting the importance of monitoring cognitive health in older adults.

Genetic contribution to Alzheimer's Disease\n\n

About 70% of Alzheimer's cases have a genetic link, with specific genes like APP, presenilin 1 & 2, and ApoE being significant contributors to the risk of developing the disease.

What are beta-amyloid plaques?\n\n

Beta-amyloid plaques are sticky aggregates of the beta-amyloid peptide formed from the breakdown of the amyloid precursor protein (APP); they trigger inflammatory responses in the brain, leading to synaptic damage and the death of neurons.

Neurofibrillary tangles\n\n

Neurofibrillary tangles are composed of clumps of hyperphosphorylated tau protein that disrupt the internal structure of neurons, contributing to cell death and cognitive decline.

Cholinergic neuron degeneration in Alzheimer's Disease\n\n

Degeneration of cholinergic neurons leads to reduced levels of acetylcholine (ACh), a neurotransmitter essential for learning and memory, resulting in a decline of cognitive functions.

Effects of neuroinflammation in Alzheimer's\n\n

Neuroinflammation, often triggered by amyloid plaques, causes damage to neurons and exacerbates the progression of Alzheimer's Disease, contributing to further cognitive decline.

Early clinical manifestations of Alzheimer's\n\n

Early symptoms include mild memory loss, difficulty concentrating, disorientation regarding time or place, and challenges in planning or organizing.

Moderate clinical manifestations of Alzheimer's\n\n

Moderate symptoms of the disease may involve significant difficulty in recognizing familiar faces, trouble with reading and writing, and increased confusion about environmental surroundings.

Severe clinical manifestations of Alzheimer's\n\n

In severe stages, individuals may become bedridden, lose the ability to communicate verbally, experience challenges with swallowing, and become completely dependent on caregivers for daily activities.

What role does diet play in Alzheimer's risk?\n\n

Diet plays a significant role in the risk of developing Alzheimer's; protective diets rich in antioxidants and vitamins are beneficial, while diets high in saturated fats and processed foods may increase the risk.

Environmental factors that may affect Alzheimer's risk\n\n

Environmental factors linked to Alzheimer's risk include exposure to air pollution, nutritional deficiencies (especially low vitamin levels), and exposure to metals such as aluminum and lead.

Viral infections linked to Alzheimer's Disease\n\n

Viral infections, such as herpes simplex virus types 1 and 2, HIV, and Hepatitis C, have been associated with an increased risk of developing Alzheimer's Disease, with multiple infections posing a higher threat.

Key clinical characteristics of Alzheimer's Disease progression\n\n

The progression of Alzheimer's Disease is characterized by a gradual decline in memory, confusion, personality changes, leading to eventual total dependence on caregivers for daily living tasks.