Interleukin 4

High levels of Interleukin 4 (IL-4) in your body could indicate that your immune system is working overtime. This could be due to a variety of reasons. For instance, it might be a sign of an allergic reaction, as IL-4 is known to play a significant role in triggering the body's response to allergens. It could also suggest an autoimmune disease, where your immune system mistakenly attacks your own body. Certain medications, such as immunosuppressants or biologics, can also affect IL-4 levels. Additionally, infections, particularly parasitic ones, can cause an increase in IL-4 as your body tries to fight off the invaders. In essence, high IL-4 levels could mean your immune system is in overdrive, responding to a perceived threat, whether it's an allergen, an infection, or your own body's cells.

Symptoms of high levels of IL-4 could include fatigue, fever, rash, joint pain, and other signs of inflammation or allergic reactions.

Low levels of Interleukin 4 (IL-4) in your body could indicate a few things. IL-4 is a protein that helps your immune system fight off infections and diseases, so if your levels are low, it might mean your immune system isn't responding as strongly as it should be. This could be due to a variety of factors, such as stress, poor nutrition, or certain medications like corticosteroids that can suppress your immune system. Low IL-4 levels could also suggest an underlying health condition. For instance, some autoimmune diseases, like multiple sclerosis or lupus, can cause your immune system to produce less IL-4. Additionally, certain types of infections, particularly viral ones, can also lower your IL-4 levels as your immune system shifts its resources to fight off the infection.

Symptoms of low levels of Interleukin 4 may not be easily noticeable, as they can be quite general and similar to symptoms of other conditions. They could include frequent infections, fatigue, and possibly symptoms related to specific autoimmune diseases, such as joint pain or skin rashes.