The immediate symptom response in allergic conjunctivitis is primarily due to the rupture of what type of cell?

The immediate symptom response in allergic conjunctivitis is primarily due to the rupture of what type of cell?

• A. Neutrophils.
• B. Mast cells.
• C. Epithelial cells.
• D. Lymphocytes.

Answer: (B)

The immediate symptom response in allergic conjunctivitis primarily results from the rupture of mast cells. Mast cells are a type of immune cell that play a crucial role in allergic reactions. When an allergen is encountered for the first time, it triggers the sensitization of these mast cells. On subsequent exposures, the allergens cross-link with Immunoglobulin E (IgE) antibodies that are bound to the surface of these mast cells, leading to their activation and degranulation. This degranulation process releases a variety of inflammatory mediators, including histamine, leukotrienes, and prostaglandins, which cause the characteristic symptoms of allergic conjunctivitis. These symptoms include redness, itching, tearing, and swelling of the conjunctiva. The other cell types mentioned, such as neutrophils, epithelial cells, and lymphocytes, play different roles in the immune response and inflammation but are not specifically responsible for the immediate allergic response in conjunctivitis. For instance, neutrophils are more involved in bacterial infections, while lymphocytes are associated with a delayed immune response rather than the rapid response seen in allergic reactions. Epithelial cells are primarily structural and involved in forming barriers but do not actively participate in the allergic inflammatory response in the same way as mast

The immediate symptom response in allergic conjunctivitis primarily results from the rupture of mast cells. Mast cells are a type of immune cell that play a crucial role in allergic reactions. When an allergen is encountered for the first time, it triggers the sensitization of these mast cells. On subsequent exposures, the allergens cross-link with Immunoglobulin E (IgE) antibodies that are bound to the surface of these mast cells, leading to their activation and degranulation.

This degranulation process releases a variety of inflammatory mediators, including histamine, leukotrienes, and prostaglandins, which cause the characteristic symptoms of allergic conjunctivitis. These symptoms include redness, itching, tearing, and swelling of the conjunctiva.

The other cell types mentioned, such as neutrophils, epithelial cells, and lymphocytes, play different roles in the immune response and inflammation but are not specifically responsible for the immediate allergic response in conjunctivitis. For instance, neutrophils are more involved in bacterial infections, while lymphocytes are associated with a delayed immune response rather than the rapid response seen in allergic reactions. Epithelial cells are primarily structural and involved in forming barriers but do not actively participate in the allergic inflammatory response in the same way as mast