Tag

Circadian Rhythm
J Mol Endocrinol. 2018 Apr; 60(3): R115–R130.Published online 2018 Jan 29. doi: 10.1530/JME-17-0196 Abstract Many physiological processes are regulated with a 24-h periodicity to anticipate the environmental changes of daytime to nighttime and vice versa. These 24-h regulations, commonly termed circadian rhythms, among others control the sleep–wake cycle, locomotor activity and preparation for food availability during the...
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Paksarian D, Rudolph KE, Stapp EK, et al. Association of Outdoor Artificial Light at Night With Mental Disorders and Sleep Patterns Among US Adolescents. JAMA Psychiatry. Published online July 08, 2020. doi:10.1001/jamapsychiatry.2020.1935 Key Points Question  Are levels of outdoor artificial light at night associated with adolescent sleep patterns and past-year mental disorder? Findings  In a cross-sectional, nationally representative survey...
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A short video seeks to stem the rising tide of light pollution, which is robbing Earth of its dark night skies. Light pollution doesn’t just make it more difficult for professional and backyard astronomers to observe the heavens, according to the 6.5-minute film, which is called “Losing the Dark.” The loss of darkness also disrupts...
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PMID: 32130879 DOI: 10.1016/j.cmet.2020.02.008 Abstract The microbiota-gut-brain axis encompasses a bidirectional mode of communication between the microorganisms residing in our gut, and our brain function and behavior. The composition of the gut microbiota is subject to diurnal variation and is entrained by host circadian rhythms. In turn, a diverse microbiota is essential for optimal regulation of host circadian...
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PMID: 32082218 PMCID: PMC7005570 DOI: 10.3389/fpsyg.2020.00045 Abstract The interaction between sleep and work-related behaviors influence many aspects of employee performance, safety, and health as well as organizational-level success. Although it is well established that quantity and quality of sleep can affect different types of task performance and personal health, the interactions between sleep habits and organizational behaviors have received much...
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PMID: 32029066 DOI: 10.5664/jcsm.8340 Abstract Study objective: To evaluate the independent association between sleep disordered breathing (SDB) using overnight polysomnography (PSG) and left ventricular (LV) scar using cardiac magnetic resonance (CMR) with late-gadolinium enhancement (LGE) in a community based cohort of the Multi-ethnic Study of Atherosclerosis (MESA). Methods: Our analytical sample includes 934 participants from the fifth examination of MESA...
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Front. Microbiol., 21 January 2020 | https://doi.org/10.3389/fmicb.2019.03145 Abstract The interplay between genetic and environmental risk factors contributes to the pathogenesis of metabolic disease. Polycystic ovary syndrome (PCOS) is the most common endocrine and metabolic disorder in women of reproductive age. Circadian rhythm disruption is an important risk factor for PCOS. In this study, we evaluated the...
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RESEARCH ARTICLE: OBSERVATIONAL STUDY Medicine: February 2020 – Volume 99 – Issue 6 – p e19098 doi: 10.1097/MD.0000000000019098 Abstract Cortisol is the main end product of hypothalamic-pituitary-adrenal gland (HPA axis), and melatonin (MT) has a regulating effect on HPA axis, and both are closely related to individual behavior and cognitive function. We aimed to evaluate cortisol and MT roles on children dyslexia in...
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https://doi.org/10.1016/j.envint.2019.105184 Abstract Exposure to light at inappropriate times in relation to the solar cycle can disturb circadian endocrine and metabolic rhythms. Previous studies have suggested an association between light exposure at night (LAN) and obesity, an important risk factor of atherosclerosis, although it remains unclear whether LAN associates with progression of atherosclerosis. To evaluate the...
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Industrial Psychiatry Journal, 01 Jan 2019, 28(1):68-74DOI: 10.4103/ipj.ipj_93_18 PMID: 31879450 PMCID: PMC6929228 Abstract Background: Computer vision syndrome (CVS) encompasses a constellation of ocular and extraocular symptoms in computer users who either habitually or compulsively use computers for long periods of time. Electronic devices such as computers, smart phones, and tablets emit blue light (400-490 nm) from their light-emitting diodes...
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