MedicalResearch.com Interview with: [caption id="attachment_54528" align="alignleft" width="150"] Dr. Granville[/caption] David Granville PhD, FAHA Professor, Pathology and Laboratory Medicine, UBC Associate Director, Vancouver Coastal Health Research Institute, VGH-UBC Associate Director, BC Professional Firefighters Burn & Wound Healing Group, Department of Surgery, UBC Principal Investigator, iCORD and UBC Centre for Heart Lung Innovation MedicalResearch.com: What is the background for this study? Response: Atopic dermatitis (aka. eczema) is a chronic inflammatory skin condition characterized by patches of dry, red, itchy skin. These patches can come and go - a process often referred to as 'flare ups'. Often when these flare ups occur, people avoid going out, or to work, resulting in lost productivity and reduced quality of life. While the cause of these flare-ups is not completely understood, a loss of the skin's protective barrier function is believed to be a triggering event. This is because the outer layer of skin (epidermis) acts as a barrier to allergens and other foreign entities from getting into the skin. When this outer barrier is lost, allergens are able to cross and penetrate the deeper layers of skin. This triggers an inflammatory response. The inflammatory response, in turn, can release factors that cause further disruption of the barrier thereby exacerbating the flare up. The outer skin barrier can be thought of in terms of a brick wall in which the 'bricks', or skin cells in this case, are held together by a molecular 'grout' known as adhesion proteins. If these adhesion proteins, which tightly anchor the skin cells together, are lost, the skin becomes more permeable to the outer environment, allowing foreign antigens to enter in, and conversely, moisture to escape out resulting in skin dryness and shedding