Cannabis sativa (Marijuana) has a long history as a medicinal plant and Δ9-tetrahydrocannabinol (Δ9-THC) is the most active component in this plant. Cannabinoids are interesting compounds with various modulatory effects on physiological processes and cognitive functions. The use of cannabinoids is a double-edged sword, because they induce both adverse and therapeutic properties. One of the most important roles of cannabinoids is modulating sleep-wake cycle. Sleep, its cycle, and its mechanism are highly unknown. Also, the effects of cannabinoids on sleep-wake cycle are so inconsistent. Thus, understanding the role of cannabinoids in modulating sleep-wake cycle is a critical scientific goal. Cannabinoids interact with many neurotransmitter systems. In this review article, we chose serotonin due to its important role in regulating sleep-wake cycle. We found that the interaction between cannabinoids and serotonergic signaling especially in the dorsal raphe is extensive, unknown, and controversial.
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http://dx.doi.org/10.1016/j.bbr.2021.113440 | DOI Listing |
Clocks Sleep
January 2025
Circadian Physics Group, School of Physics, University of Sydney, Sydney, NSW 2006, Australia.
Fixed sleep schedules with an 8 h time in bed (TIB) are used to ensure participants are well-rested before laboratory studies. However, such schedules may lead to cumulative excess wakefulness in young individuals. Effects on older individuals are unknown.
View Article and Find Full Text PDFNat Sci Sleep
January 2025
Department of Insect Genetics, Institute of Cytology and Genetics of the Siberian Branch, the Russian Academy of Sciences, Novosibirsk, 630090, Russia.
Purpose: Two previously proposed modelling approaches to explain the bimodal pattern of activity and/or sleep in are based on 1) the concept of morning and evening oscillators underlying the peaks of activity in the morning and evening, respectively, and 2) the concept of two cycles of buildup and decay of sleep pressure, gated only by the circadian oscillator. Previously, we simulated 24-h alertness-sleepiness curves in humans using a model postulating the circadian modulation of the buildup and decay phases of two (wake and sleep) homeostatic processes. Here, we tested whether a similar model could be applied to simulate the bimodal 24-h rhythm of fly locomotor activity and sleep.
View Article and Find Full Text PDFFront Aging Neurosci
January 2025
School of Nursing, Capital Medical University, Beijing, China.
Background: Hypocretin-1 is a vital neurotransmitter in regulating the sleep-wake cycle and provides neuroprotection against cerebral ischemia. We aims to develop a poor sleep quality predictive model for elderly population with acute ischemic stroke.
Methods: A total of 183 consecutively elderly patients were included in the prospective cohort study.
Cancer Cell Int
January 2025
School of Medicine, Kashan University of Medical Sciences, Kashan, Iran.
This narrative review explores the link between breast cancer and night shift work in nurses, focusing on genetic and epigenetic factors. Breast cancer disproportionately affects women globally, and night shift work is increasingly recognized as a potential risk factor. Nurses who work consecutive overnight shifts face elevated risks due to disruptions in their circadian rhythms.
View Article and Find Full Text PDFChronobiol Int
January 2025
Department of Child and Adolescent Psychiatry, Balıkesir Atatürk City Hospital, Balıkesir, Turkey.
Lithium has long been used as a cornerstone mood stabilizer in the treatment of bipolar disorder (BD). However, reliable biomarkers that can predict which patients will respond better to lithium are still lacking. This study aims to evaluate the potential of NR1D1 gene SNP; rs2071427 and actigraphic measurements in predicting lithium response.
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