[Clinical efficacy of acupuncture on mild cognitive impairment and its effect on gut microbiota].

Acupuncture could improve cognitive dysfunction in patients with MCI, and its mechanism may be related to increasing the relative abundance of butyrate-producing bacteria such as <i>Faecalibacterium</i>, <i>Clostridia</i>, and <i>Ruminococcaceae</i>, maintaining the intestinal barrier, and inhibiting related inflammatory responses.