The Skin-Brain-Exposome Axis in Stress-Sensitive Dermatoses: A Narrative Review.

Area of Science:

• Neuroimmunology
• Environmental Health
• Dermatology

Background:

• Dermatological conditions cause significant global disability.
• The skin-brain-exposome axis links neuroimmunology and environment in skin disease.
• Understanding this axis is crucial for managing complex skin disorders.

Purpose of the Study:

• To synthesize neurobiological mechanisms of the skin-brain-exposome axis.
• To integrate sociodemographic factors and clinical manifestations.
• To review evidence-based psychodermatological interventions.

Main Methods:

• Conducted a narrative review of 54 sources from major databases (PubMed, Scopus, Web of Science).
• Integrated mechanistic, interventional (RCTs, meta-analyses), and epidemiological data.
• Utilized findings from a large Polish cohort study (27,000 adults).

Main Results:

• Psychological distress activates the HPA axis and neurogenic inflammation, worsening conditions like atopic dermatitis, psoriasis, acne, and pruritus.
• Exposome factors (pollution) and sociodemographics (education, gender) influence disease risk and diagnosis.
• Cognitive Behavioral Therapy (CBT) and Mindfulness-Based Stress Reduction (MBSR) effectively reduce the itch-scratch-stress cycle and improve quality of life.

Conclusions:

• Effective dermatological care must address both skin barrier and psychological factors.
• Integrating psychosocial screening and behavioral interventions is vital for managing chronic inflammatory skin diseases.
• Targeting the neuroimmune aspects of skin disease improves patient outcomes.