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Mutoh N, Moriya M, Xu C, Kato K, Arai S, Iwabuchi N, Tanaka M, Jinghua Y, Itamura R, Sakatani K, Warisawa S. Bifidobacterium breve M-16V regulates the autonomic nervous system via the intestinal environment: A double-blind, placebo-controlled study. Behav Brain Res 2024; 460:114820. [PMID: 38128887 DOI: 10.1016/j.bbr.2023.114820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 12/11/2023] [Accepted: 12/17/2023] [Indexed: 12/23/2023]
Abstract
We conducted a randomized controlled trial to investigate the potential of Bifidobacterium breve M-16 V to improve mood in humans. In this evaluation, we incorporated the use of near-infrared spectroscopy (NIRS), which has been used to evaluate mood states in studies with small sample sizes. Participants were given B. breve M-16 V (20 billion cells/day) for 6 weeks, and their mood state was assessed before and after ingestion. NIRS data were collected at rest and during a mental arithmetic task (under stress). Intake of B. breve M-16 V decreased the heart rate under stress and increased levels of the GABA-like substance pipecolic acid in stool samples. In addition, B. breve M-16 V improved mood and sleep scores in participants with high anxiety levels. These results suggest that B. breve M-16 V affects the metabolites of the gut microbiota and has the potential to modulate the autonomic nervous system and to improve mood and sleep.
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Affiliation(s)
- Natsumi Mutoh
- Innovative Research Institute, Morinaga Milk Industry Co., Ltd., 1-83, 5-Chome, Higashihara, Zama-city, Kanagawa 252-8583, Japan
| | - Masamichi Moriya
- Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa-city, Chiba 277-8563, Japan
| | - Chendong Xu
- Innovative Research Institute, Morinaga Milk Industry Co., Ltd., 1-83, 5-Chome, Higashihara, Zama-city, Kanagawa 252-8583, Japan
| | - Kumiko Kato
- Innovative Research Institute, Morinaga Milk Industry Co., Ltd., 1-83, 5-Chome, Higashihara, Zama-city, Kanagawa 252-8583, Japan
| | - Satoshi Arai
- Innovative Research Institute, Morinaga Milk Industry Co., Ltd., 1-83, 5-Chome, Higashihara, Zama-city, Kanagawa 252-8583, Japan
| | - Noriyuki Iwabuchi
- Innovative Research Institute, Morinaga Milk Industry Co., Ltd., 1-83, 5-Chome, Higashihara, Zama-city, Kanagawa 252-8583, Japan.
| | - Miyuki Tanaka
- Innovative Research Institute, Morinaga Milk Industry Co., Ltd., 1-83, 5-Chome, Higashihara, Zama-city, Kanagawa 252-8583, Japan
| | - Yin Jinghua
- Mishuku Hospital, 5-33-12 Kamimeguro, Meguro-ku, Tokyo 153-0051, Japan
| | - Ronko Itamura
- Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa-city, Chiba 277-8563, Japan
| | - Kaoru Sakatani
- Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa-city, Chiba 277-8563, Japan
| | - Shinichi Warisawa
- Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa-city, Chiba 277-8563, Japan
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