Fig. 1From: The endotoxin hypothesis of neurodegenerationThe central pathway of how endotoxin leads to neurodegeneration. Gut endotoxin may enter blood due to leaky gut, e.g. due to alpha-synuclein aggregates. Gum endotoxin may enter blood as a result of gum inflammation or tooth brushing. Blood endotoxin may cause brain inflammation via blood or brain cytokines, or by entering the brain, resulting in neurodegenerationBack to article page