Abstract:
OBJECTIVES:The microbiota-gut-brain axis is an intricate communication network that is emerging as a key modulator of psychological and physiological wellbeing. Recent pioneering work in the field has suggested a possible link between gut microbiome composition with sleep, an evolutionarily conserved behavior demonstrated to play a critical role in health. This study is the first to address relationships between self-reported sleep habits and gut microbiome composition in young, healthy individuals. METHODS:A total of 28 young, healthy subjects (17 males/11 females; 29.8 ± 10.4 years) that were free of metabolic or cardiovascular disease, and that did not take sleep medication or antibiotics within the past six months were included in the study. Relationships between self-reported sleep quality, obtained using the Pittsburgh Sleep Quality Index (PSQI), with microbial diversity (Shannon Index), the Firmicutes/Bacteroidetes (F/B) ratio, and select bacterial taxa were assessed. RESULTS:Alpha diversity (r = -0.50) and F/B ratio (r = -0.47) were inversely associated (P < 0.05) with the PSQI score. Ten bacterial taxa were associated (P < 0.05) with the PSQI score, including genus-level Blautia (r = -0.57), Ruminococcus (r = -0.39), and Prevotella (r = 0.39). CONCLUSIONS:In young healthy individuals, self-reported sleep quality was positively associated with microbial diversity. We also observed a positive association between sleep quality with F/B ratio, seemingly due to a greater relative abundance of Blautia and Ruminococcus (Firmicutes) and lower proportions of Prevotella (Bacteroidetes) in individuals reporting superior sleep quality. Future studies are encouraged to evaluate mechanistic links between the gut microbiome with sleep, as well as the health implications of this relationship.
journal_name
Sleep Medjournal_title
Sleep medicineauthors
Grosicki GJ,Riemann BL,Flatt AA,Valentino T,Lustgarten MSdoi
10.1016/j.sleep.2020.04.013subject
Has Abstractpub_date
2020-09-01 00:00:00pages
76-81eissn
1389-9457issn
1878-5506pii
S1389-9457(20)30180-5journal_volume
73pub_type
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