Ig (IMMUNOGLOBULIN) INCREASED IN CASE OF PARASITIC INFECTION & ALLERG:
- A- IgG
- B- IgA
- C- IgM
- D- IgE.
The most likely answer is D- IgE.
Here's why:
D- IgE (Immunoglobulin E):
This type of immunoglobulin is specifically associated with allergic reactions and defense against parasitic infections. When the body encounters allergens or certain parasites, it produces IgE antibodies that bind to mast cells and basophils, triggering the release of histamine and other inflammatory mediators. This leads to symptoms like hives, itching, swelling, and even anaphylaxis in severe cases. In parasitic infections, IgE can also be involved in expelling the parasites through mechanisms like degranulation of mast cells and eosinophil activation.
A- IgG (Immunoglobulin G):
This is the most abundant antibody in the blood and plays a crucial role in long-term immunity against various infections, including bacterial and viral ones. While it can be elevated in some parasitic infections, it's not as specific to allergies and parasitic defenses as IgE.
B- IgA (Immunoglobulin A):
This type of antibody is found in mucosal secretions like saliva and tears, protecting against pathogens entering through these routes. It can be elevated in some parasitic infections affecting the gut or respiratory tract, but its role in allergies is less prominent.
C- IgM (Immunoglobulin M):
This is the first antibody produced in response to a new infection, but its levels typically decline as IgG takes over. While it can be elevated in early stages of parasitic infections, it's not the primary antibody associated with allergies or long-term parasitic defense.
Therefore, based on the information provided, IgE is the most likely immunoglobulin to be increased in both parasitic infections and allergies. However, it's important to remember that specific diagnosis and interpretation of immunoglobulin levels require proper medical evaluation and consideration of other clinical factors.