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Studies that included glutamate receptor antagonists such as memantine, flupirtine, and neramexane at a low dosage did not indicate significant results when compared with that of placebo groups, but neramexane at a tolerably high dose indicated a significant improvement over that of the placebo group for tinnitus treatment [69, 70]

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L., et al., Neuroprotective Effects of Fecal Microbiota Transplantation on MPTPinduced Parkinson's disease Mice: Gut Microbiota, Glial Reaction and TLR4/TNF Signaling Pathway, Brain, Behavior, and Immunity 70 (2018): 4860

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Neuropsychiatr Dis Treat 13:12451262

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