Results 31 to 40 of about 43,835 (279)

Dopamine release in the nucleus accumbens promotes REM sleep and cataplexy

open access: yesiScience, 2023
Summary: Patients with the sleep disorder narcolepsy suffer from excessive daytime sleepiness, disrupted nighttime sleep, and cataplexy—the abrupt loss of postural muscle tone during wakefulness, often triggered by strong emotion.
Brandon A. Toth   +3 more
doaj   +1 more source

Regulation of sleep by neuropeptide Y-like system in Drosophila melanogaster. [PDF]

open access: yesPLoS ONE, 2013
Sleep is important for maintenance of normal physiology in animals. In mammals, neuropeptide Y (NPY), a homolog of Drosophila neuropeptide F (NPF), is involved in sleep regulation, with different effects in human and rat.
Chunxia He   +4 more
doaj   +1 more source

Aquilaria sinensis leaf tea affects the immune system and increases sleep in zebrafish

open access: yesFrontiers in Pharmacology, 2023
The importance of adequate sleep for good health cannot be overstated. Excessive light exposure at night disrupts sleep, therefore, it is important to find more healthy drinks that can promote sleep under sleep-disturbed conditions.
Xiaohui Tan   +10 more
doaj   +1 more source

Objective Assessment of Daytime Napping and Incident Heart Failure in 1140 Community‐Dwelling Older Adults: A Prospective, Observational Cohort Study

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2021
Background Disrupted nighttime sleep has been associated with heart failure (HF). However, the relationship between daytime napping, an important aspect of sleep behavior commonly seen in older adults, and HF remains unclear. We sought to investigate the
Peng Li   +8 more
doaj   +1 more source

Age-Related Unstructured Spike Patterns and Molecular Localization in Drosophila Circadian Neurons

open access: yesFrontiers in Physiology, 2022
Aging decreases sleep quality by disrupting the molecular machinery that regulates the circadian rhythm. However, we do not fully understand the mechanism that underlies this process.
Dieu Linh Nguyen   +5 more
doaj   +1 more source

#Sleepyteens: social media use in adolescence is associated with poor sleep quality, anxiety, depression and low self-esteem [PDF]

open access: yes, 2016
This study examined how social media use related to sleep quality, self-esteem, anxiety and depression in 467 Scottish adolescents. We measured overall social media use, nighttime-specific social media use, emotional investment in social media, sleep ...
Alfano   +47 more
core   +1 more source

Phospholipase C-beta4 is essential for the progression of the normal sleep sequence and ultradian body temperature rhythms in mice. [PDF]

open access: yesPLoS ONE, 2009
BACKGROUND: THE SLEEP SEQUENCE: i) non-REM sleep, ii) REM sleep, and iii) wakefulness, is stable and widely preserved in mammals, but the underlying mechanisms are unknown.
Masayuki Ikeda   +7 more
doaj   +1 more source

Evidence that natural selection maintains genetic variation for sleep in Drosophila melanogaster. [PDF]

open access: yes, 2015
BackgroundDrosophila melanogaster often shows correlations between latitude and phenotypic or genetic variation on different continents, which suggests local adaptation with respect to a heterogeneous environment.
Begun, David J   +4 more
core   +1 more source

Serotonin and corticosterone rhythms in mice exposed to cigarette smoke and in patients with COPD:implication for COPD-associated neuropathogenesis [PDF]

open access: yes, 2014
The circadian timing system controls daily rhythms of physiology and behavior, and disruption of clock function can trigger stressful life events. Daily exposure to cigarette smoke (CS) can lead to alteration in diverse biological and physiological ...
A Agusti   +79 more
core   +5 more sources

Circadian and Metabolic Effects of Light: Implications in Weight Homeostasis and Health [PDF]

open access: yes, 2017
Daily interactions between the hypothalamic circadian clock at the suprachiasmatic nucleus (SCN) and peripheral circadian oscillators regulate physiology and metabolism to set temporal variations in homeostatic regulation.
Diego A. Golombek   +6 more
core   +2 more sources

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