Cocaine-Enriched Oral Streptococcus parasanguinis Promotes Neuroimmune Dysfunction and Memory Impairment
Douglas Johnson, Tabinda Salman, Arshad Ali Noorani, Barbara Benowitz, Yifei He, Kamala P. Sundararaj, Hannah Shelley, Zhenwu Luo, Zhuang Wan, Sylvia Fitting, Rachel D. Penrod, Wei Jiang
This study shows that cocaine promotes growth of Streptococcus parasanguinis, which leads to neuroinflammation and memory impairment in mice without bacterial translocation.
bioRxiv · Jun 17, 2026 · PreprintNeuroscience