A human protein which is being obtained from transgenic animals and is used to treat emphysema is

Options

A. `alpha`-lactalbumin
B. TPA
C. `alpha`-1-antitrypsin
D. C-peptide

Answer

To solve the question regarding the human protein obtained from transgenic animals that is used to treat emphysema, we will analyze each option provided and determine the correct answer step by step.

### Step-by-Step Solution:

1. **Understanding Emphysema**:
- Emphysema is a chronic obstructive pulmonary disease (COPD) characterized by the damage and stretching of the lungs, leading to difficulty in breathing and coughing.
- This condition is often associated with a deficiency in certain proteins that protect lung tissue.

2. **Analyzing the Options**:
- **Option 1: Alpha-lactalbumin**:
- This protein is involved in lactose production in milk. It does not have a role in treating emphysema.
- **Conclusion**: Incorrect option.

- **Option 2: TPA (Tissue Plasminogen Activator)**:
- TPA is a protein that helps dissolve blood clots. It is not related to the treatment of emphysema.
- **Conclusion**: Incorrect option.

- **Option 3: C-peptide**:
- C-peptide is associated with insulin production and is a marker for blood sugar levels. It does not treat emphysema.
- **Conclusion**: Incorrect option.

- **Option 4: Alpha-1-antitrypsin**:
- This protein is produced by the liver and protects tissues from damage caused by enzymes released by white blood cells during inflammation.
- A deficiency in alpha-1-antitrypsin can lead to lung damage, making it relevant for treating emphysema.
- **Conclusion**: Correct option.

3. **Final Answer**:
- The human protein obtained from transgenic animals and used to treat emphysema is **Alpha-1-antitrypsin**.