Jujube extract fixes fly sleep by boosting gut bacteria's antioxidant gene
Wang X, Xi J, Gong H, Yin Y, Jin C
Medicinal Plants
The red dates or jujube fruit sold dried in Asian grocery aisles have been used for centuries to calm the mind, and this study shows a real biological pathway, gut bacteria triggering an antioxidant switch, behind that old sleep remedy.
Scientists gave sleep-deprived fruit flies an alcohol extract made from jujube, a fruit tree long used in traditional Chinese medicine for insomnia. The extract helped the flies sleep normally again, and it turned out to work by feeding a helpful gut bacterium called Acetobacter, which then switched on an antioxidant gene inside the gut lining. When researchers turned off that gene, the sleep benefits disappeared, showing the fix runs through the gut, not just the brain.
Key Findings
ZJAE (Ziziphus jujuba alcohol extract) restored total sleep time and reduced motor hyperactivity in chronically sleep-deprived Drosophila by lowering systemic reactive oxygen species and restoring gut barrier integrity
The extract enriched gut Acetobacter bacteria; antibiotic-treated flies recolonized with acetic acid bacteria plus ZJAE showed the highest expression of the antioxidant gene CncC (an Nrf2 homolog)
Gut-specific RNA interference knockdown of CncC in intestinal epithelial cells abolished both the sleep improvements and the redox benefits, confirming the gut-brain mechanism
chevron_right Technical Summary
Fruit flies fed an alcohol extract of jujube (a plant used in Chinese medicine for over 2000 years) slept better after sleep deprivation, and the benefit traced back to gut bacteria activating an antioxidant gene in the intestine.
Abstract Preview
Original paper
Intestinal CncC gene activation mediates the sleep-protective effects of Ziziphus jujuba alcohol extract via the gut-brain axis in Drosophila.
Ziziphus jujuba var. spinosa (Bunge) Hu ex H.F.Chow (Ziziphus jujuba) has been used in Chinese folk medicine for over 2000 years, with the Shennong Bencao Jing noting that the "main worry is not sl...
open_in_new Read full abstractAbstract copyright held by the original publisher.
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Jujube, sometimes jujuba, scientific name Ziziphus jujuba, and also called red date, Chinese date, and Chinese jujube, is a species in the genus Ziziphus in the buckthorn family Rhamnaceae. It is often confused with the closely related Indian jujube, Z. mauritiana. The jujube tolerates a diverse ...