Platelet Count and IgE Level in Chronic Idiopathic Urticaria: A Case-control Study

Area of Science:

• Immunology
• Dermatology
• Hematology

Background:

• Chronic urticaria affects 0.5-5% of the population, causing significant economic and psychological burdens.
• Platelets are increasingly recognized for their role in inflammatory and immunological processes, including skin diseases.
• This study investigates the connection between platelet markers and immunoglobulin E (IgE) in chronic idiopathic urticaria.

Observation:

• A case-control study compared 100 chronic idiopathic urticaria patients with 100 healthy controls.
• Measurements included mean platelet count (PLT), mean platelet volume (MPV), platelet distribution width (PDW), and total IgE.
• Blood samples were analyzed for platelet and IgE markers.

Findings:

• Patients with chronic urticaria exhibited significantly higher mean PLT, MPV, PDW, and total IgE levels compared to controls (P=0.001).
• Mean MPV was notably higher in the chronic urticaria group.
• Total IgE was significantly higher in patients with a positive Autologous Serum Skin Test (ASST).

Implications:

• The findings suggest a potential role for platelets in the pathogenesis of chronic urticaria and inflammation.
• Elevated MPV in chronic urticaria patients warrants further investigation into platelet activation in this condition.
• While platelet markers did not correlate with urticaria severity, ASST positivity did, highlighting its clinical relevance.