Gene Polymorphism in Tinea Versicolor

Detection of IL1-7A and IL-17F Gene Polymorphism in Pityriasis Versicolor and Its Relation to Susceptibility to Infections.

Blood samples will be taken from cases presenting with recurrent tinea versicolor , after confirmation of diagnosis by wood's light and KOH examination, for the detection of gene polymorphism in IL17 A and IL17 F.

In addition , serum samples from patients and controls will be tested for 25(OH)2 D3

Inclusion Criteria:

• - Patients with recurrent pityriasis versicolor (active now) and not taking treatment for it.
• Patients of both genders.
• Age ≥18 years old.

Exclusion Criteria:

• - Patients with other cutaneous diseases.
• Patient's having dandruff (scaly scalp) even if not symptomatizing.
• Pregnant and lactating females, children, prisoners, cognitively impaired or mentally disabled subjects.
• Patients with autoimmune diseases.
• Patients with immunodeficiency diseases.
• Immunosuppressed patients e.g. HIV, diabetics, organ transplant, malignancy, patients taking immunosuppressive drugs e.g. chemotherapy, cortisone.