intestinal cells with zonulin receptors, normal and faulty tight

zonulin protein permeability tight junctions cells gastrointestinal tract digestive system intestinal receptor gut barrier dysfunction vector poster leaky syndrome cell immune chronic autoimmune disorder food allergies sensitivities gluten virus toxin unhealthy diagram bowel digestion damage celiac health normal human anatomy gliadin disease epithelial irritable crohn 039 ulcerative colitis diabetes receptors faulty increases wall tract system junctions permeability dysfunction