This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nervous system, Subject name: Pathology
[{'content': 'Features of Alzheimer&;s disease are all Except \nSelect and explain. \nA. Narrowing of ventricles, B. Hirano bodies, C. Amyloid, D. Neuritic plaques', 'role': 'user'}, {'content': "Answer: A \nExplanation: Hirano bodies are intracellular aggregates of actin and actin-associated proteins. Hirano bodies are found in the nerve cells of individuals afflicted with ceain neurodegenerative disorders, such as Alzheimer's disease and Creutzfeldt-Jakob disease. Senile plaques (also known as neuritic plaques) are extracellular deposits of amyloid beta in the grey matter of the brain. Alzheimer's disease is a progressive disorder that causes brain cells to waste away (degenerate) and die. Alzheimer's disease is the most common cause of dementia -- a continuous decline in thinking, behavioral and social skills that disrupts a person's ability to function independently Refer robbins 9/e p834", 'role': 'assistant'}]