The Hidden Risks of BPC157: What Patients Need to Know About Contamination and Safety Regenexx at New Regeneration Orthopedics Many treatment guidelines for psoriasis rely heavily on body surface area (BSA) involvement to determine disease severity and eligibility for systemic therapies like biologics. Traditionally, patients with less than 10% BSA involvementespecially Psoriasis The Lancet Psoriasis harbors multiple pathogenic type 17 T cell subsets: Selective modulation by risankizumab Journal of Allergy and Clinical Immunology Frontiers Gut microbiota and psoriasis: pathogenesis, targeted therapy, and future directions