Which of the following is an example of progressive degeneration disease ?

Options

A. Muscular dystrophy
B. Alzheimer's disease
C. Cystic fibrosis
D. All of these

Answer

To determine which of the following is an example of a progressive degeneration disease, we need to analyze each option provided:

1. **Muscular Dystrophy**: This is a genetic disorder characterized by progressive weakness and loss of muscle mass. It leads to the deterioration of muscle tissue over time, which aligns with the definition of a progressive degenerative disease.

2. **Alzheimer's Disease**: This is a neurodegenerative disorder that progressively destroys memory and cognitive functions. Patients experience a gradual decline in their ability to remember and think, which also fits the criteria for a progressive degenerative disease.

3. **Cystic Fibrosis**: This is another genetic disorder that affects the lungs and digestive system. It leads to the accumulation of thick mucus, which progressively damages the lungs and other organs. Thus, it is also considered a progressive degenerative disease.

4. **Chronic Pulmonary Disease (CPD)**: This term typically refers to chronic obstructive pulmonary disease (COPD), which involves progressive deterioration of lung function over time.

5. **Cardiac Fibrosis**: This condition involves the thickening and stiffening of the heart tissue, which can lead to progressive heart failure.

Based on the analysis of these conditions, we can conclude that all of the options listed (muscular dystrophy, Alzheimer's disease, cystic fibrosis, chronic pulmonary disease, and cardiac fibrosis) are examples of progressive degeneration diseases.

**Final Answer**: All of these (Muscular Dystrophy, Alzheimer's Disease, Cystic Fibrosis, Chronic Pulmonary Disease, and Cardiac Fibrosis) are examples of progressive degeneration diseases.