Cultures grown from patients with bacterial overgrowth syndrome reveal abnormally large numbers of anaerobic bacteria in addition to normal flora. Several protective factors stabilize the number and type of bacteria that colonize the upper GI tract.
An amoeba is a type of unicellular organism usually found in water around decaying vegetation, in wet soil and in animals such as humans. It is relatively advanced, and can extend and retract blob-like arms called pseudopodia, which it can use to grasp food particles and to propel itself through microscopic terrain.
The Amoeba proteus is a free-living chemo-organo-heterotroph, where its energy is obtained from chemical sources, such as sugars, fatty acids, and glycerol. Organic substrates perform as electron donors, and carbon is acquired from organic substances.