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As a result, the mice showed elevated ImP levels in blood and brain tissue, along with the hallmark features of Parkinson's symptoms: loss of dopaminergic neurons, heightened neuroinflammation, impaired motor function, and increased aggregation of alpha-synuclein, a protein central to disease progression. Our study provides a mechanistic understanding of how oral microbes in the gut can influence the brain and contribute to the development of Parkinson's disease," said Professor Ara Koh. "It highlights the potential of targeting the gut microbiota as a therapeutic strategy, offering a new direction for Parkinson's treatment." Reference: "Gut microbial production of imidazole propionate drives Parkinson's pathologies" by Hyunji Park, Jiwon Cheon, Hyojung Kim, Jihye kim, Jihyun Kim, Jeong-Yong Shin, Hyojin Kim, Gaeun Ryu, In Young Chung, Ji Hun Kim, Doeun Kim, Zhidong Zhang, Hao Wu, Katharina R. Beck, Fredrik Bäckhed, Han-Joon Kim, Yunjong Lee and Ara Koh, 5 September 2025, Nature Communications. DOI: 10.1038/s41467-025-63473-4 The research was supported by the Samsung Research Funding & Incubation Center of Samsung Electronics, the Mid-Career Researcher Program of the Ministry of Science and ICT, the Microbiome Core Research Support Center, and the Biomedical Technology Development Program."