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Background: Psoriasis is a chronic inflammatory disease characterized by an excessive hyperproliferation of keratinocytes and a combination of genetic, epigenetic, and environmental influences. The pathogenesis of psoriasis is complex and the exact mechanism remains elusive. Objectives: The study of the prevalence of psoriasis will allow the estimation of the number of people suffering from this condition at the national level, as well as the development and validation of a questionnaire to estimate the prevalence and the risk factors associated with the disease. Methods: A quantitative research was conducted at a national level among the target population in order to validate the questionnaire and estimate the national prevalence. Results: Declaratively, the prevalence of psoriasis in the studied group (N = 1500) is 4%, the first symptoms appearing around the age of 50, with a certified diagnosis being made on average at 55 years. The prevalence of psoriasis vulgaris was 4.99%. Conclusions: The results obtained will be useful in guiding future initiatives and communication campaigns related to this condition, and the methodological approach used will provide the opportunity to make recommendations for improving similar initiatives in the future.

Sobolev et al. found a differential expression of six estrogen-controlled genes (HMOX1, KRT19, LDHA, HSPD1, MAPK1, and CA2) in the skin of female patients with psoriasis compared to male patients with psoriasis and concluded that these proteins may be involved in the defense of skin cells against inflammation damage. Inflammatory skin diseases occur after the onset of abnormal immune cell responses and the activation of various immune signaling pathways in the skin [[1]]. In the treatment of atopic dermatitis, important advances are being made, and Janus kinase inhibitors (JAK) represent new treatment options. Personalized medicine stratifies patients based on molecular markers and allows the identification of the best possible solution for the patient. [Extracted from the article]