Evaluation of Serum MicroRNA in Acne Vulgaris and Relation to Acne Severity

Acne vulgaris is a common chronic skin disease involving blockage and inflammation of pilosebaceous units.

Acne vulgaris is characterized by non-inflammatory, open or closed comedones and by Inflammatory lesions include papules, pustules and nodules. Affecting mostly the face but also the back and chest.

Acne vulgaris may have a psychological impact on any patient, regardless of the severity or the grade of the disease.

Prevalence of self-reported acne was 34.7%. Females significantly reported acne more frequently than males (39.1% vs. 30.3%) Prevalence of clinically confirmed acne was 24.4%, with higher rates among females (28.6%) than males (20.2%).(4) the pathogenesis result from increased sebum production (due to increased activity of androgens and (IGF-1), excessive deposition of keratin in pilosebaceous follicles leading to comedo formation, colonization of the follicle by Propionibacterium acnes bacteria, and the local release of pro-inflammatory chemicals in the skin through certain inflammatory mechanisms.

recently, Inflammation is a key feature in the pathogenesis of acne vulgaris , with various chemokines and cytokines that contribute to fuel a vicious cycle.