Alpha 1 antitrypsin deficiency leads to:

Correct option is C

Ans. (c) Sol. The correct answer is (c) Emphysema.
Alpha-1 antitrypsin (AAT) deficiency is a genetic condition that can lead to emphysema, a type of chronic obstructive pulmonary disease (COPD). Alpha-1 antitrypsin is a protein that protects the lungs from the damaging effects of enzymes released by white blood cells. When AAT is deficient or dysfunctional, it allows these enzymes to break down the lung tissue, leading to the development of emphysema, which is characterized by the destruction of the alveoli (air sacs in the lungs), resulting in difficulty breathing.
Explanation of each option:
· (a) Bronchiectasis: While bronchiectasis can occur as a complication of respiratory diseases, it is not directly caused by alpha-1 antitrypsin deficiency. It involves the permanent dilation of the bronchi and is usually due to chronic infection or inflammation.
· (b) Bronchitis: Bronchitis refers to inflammation of the bronchial tubes. Although alpha-1 antitrypsin deficiency can lead to chronic obstructive pulmonary diseases like emphysema, it does not specifically cause bronchitis, which is usually an acute or chronic inflammation of the bronchial lining.
· (c) Emphysema: Correct answer. Alpha-1 antitrypsin deficiency is a major cause of emphysema, as the lack of the protective protein leads to the breakdown of lung tissue, particularly in the lower lungs.
· (d) Pulmonary oedema: Pulmonary oedema is the accumulation of fluid in the lungs, which is often caused by heart failure or other conditions, but not by alpha-1 antitrypsin deficiency.
Thus, emphysema is the correct condition caused by alpha-1 antitrypsin deficiency.