1. Lactuca sativa L. Extract Enhances Sleep Duration Through Upregulation of Adenosine A1 Receptor and GABA A Receptors Subunits in Pentobarbital-Injected Mice.
- Author
-
Lee M, Park J, Cho W, Jun Y, Lee H, Jeon G, Jun W, and Kim OK
- Subjects
- Animals, Mice, Male, Brain metabolism, Brain drug effects, Humans, Mice, Inbred ICR, Sleep Duration, Plant Extracts pharmacology, Plant Extracts administration & dosage, Pentobarbital pharmacology, Receptors, GABA-A metabolism, Receptors, GABA-A genetics, Sleep drug effects, Receptor, Adenosine A1 metabolism, Receptor, Adenosine A1 genetics, Up-Regulation drug effects, Lactuca chemistry, Lactuca metabolism
- Abstract
We investigated the effects of Lactuca sativa L. extracts (Lactuc) on pentobarbital-induced sleep in mice to elucidate the mechanisms underlying its impact on sleep quality. Mice were randomly assigned to five groups: control, positive control (diazepam 2 mg/kg b.w.), and three groups orally administered with Lactuc (50, 100, and 200 mg/kg b.w.). After 2 weeks of oral administration and intraperitoneal injections, the mice were killed. We found that the Lactuc-administered groups had significantly reduced sleep latency and increased sleep duration compared with the control group. Furthermore, the oral administration of Lactuc induced a significant increase in mRNA expression and protein expression of adenosine A1 receptor in the brains compared with the expressions in the control group. In addition, the Lactuc-administered groups exhibited significantly higher levels of mRNA expressions of GABA
A receptors subunits α 2, β 2, γ 1, and, γ 2 in the brain tissue. Therefore, we suggest that Lactuc could be used to develop natural products that effectively improve sleep quality and duration.- Published
- 2024
- Full Text
- View/download PDF