Oral microbial abundance (N. subflava, V. parvula, N. sicca, N. flavescens)

1. Cognitive impairment is associated with oral microbial abundance (N. subflava, V. parvula, N. sicca, N. flavescens) in humans.

   “Random forest (RF) and LEfSe analysis identified significant increase in abundance of species N. subflava , Veillonella parvula , N. sicca , and Neisseria flavescens in MCI and dementia participants compared to controls.”

   Humansin elderly participants with MCI and dementia compared to controls

   Distinct Oral Microbiome Signatures in Cognitive Impairment: Metagenomic Insights from the Elderly MiaGB cohort

   AAIC 2025 abstract·25 Dec 2025

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