TY - EJOU AU - MANOLE, EMILIA AU - DUMITRESCU, LAURA AU - NICULIȚE, CRISTINA AU - POPESCU, BOGDAN OVIDIU AU - CEAFALAN, LAURA CRISTINA TI - Potential roles of functional bacterial amyloid proteins, bacterial biosurfactants and other putative gut microbiota products in the etiopathogeny of Parkinson’s Disease T2 - BIOCELL PY - 2021 VL - 45 IS - 1 SN - 1667-5746 AB - An increasing number of studies provide evidence for the existence of a microbiota-gut-brain axis and its potential involvement in the development of sporadic Parkinson’s disease and other neurodegenerative conditions. The neuropathologic hallmark of Parkinson’s disease is the presence of brain intraneuronal aggregates of misfolded alpha-synuclein, known as Lewy bodies. Some gut microbiota products may trigger alpha-synuclein conformational changes in the neurons of the enteric nervous system, which can then spread to the brain in a prion-like fashion through the vagus nerve. Others may interfere with neuroinflammatory pathways and susceptibility to neurodegeneration. In this review, we assess the potential role of putative gut microbiota products in the etiopathogeny of Parkinson’s disease, with a special emphasis on functional bacterial amyloid proteins, bacterial biosurfactants, endotoxins and short-chain fatty acids. The possible roles of molecular hydrogen, a common byproduct of bacterial fermentation, are also addressed. KW - Alpha-synuclein KW - Endotoxins KW - Short-chain fatty acids DO - 10.32604/biocell.2021.013452