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Influence of Circadian Disruption Associated With Artificial Light at Night on Micturition Patterns in Shift Workers

Kim SJ, Kim JW, Cho YS, Chung KJ, Yoon H, Kim KH

Shift workers often experience problems associated with circadian disruption associated with artificial light at night and nocturia is commonly noted in night-shift workers. Nocturia associated with circadian disruption is due...
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Altered Regional Cerebral Blood Flow Associated with Mood and Sleep in Shift Workers: Cerebral Perfusion Magnetic Resonance Imaging Study

Park YK, Kim JH, Choi SJ, Kim ST, Joo EY

BACKGROUND AND PURPOSE: Shift work disrupts the body's circadian rhythms and increases the risk of health problems. Despite evidence of neuropsychological disturbances in shift workers (SW), the brain functional status...
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A Patient with the Disrupted Sleep-Wake Rhythm after Traumatic Brain Injury

Kim E, Kim S, Lee JH

Many patients with a traumatic brain injury (TBI) experience a range of sleep problems. Although some studies investigated the pathophysiology of sleep-wake cycle disturbances in TBI patients, it has not...
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Is Advancing Circadian Rhythm the Mechanism of Antidepressants?

Lee HJ

Antidepressants usually require 2–8 weeks after drug administration to obtain a clinical response. In contrast, three fast-acting antidepressant treatments (sleep deprivation, electroconvulsive therapy, and ketamine) significantly reduced depressive symptoms within...
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Effects of Light on Daytime Sleep in 12 Hours Night Shift Workers: A Field Study

Choi SJ, Park HR, Joo EY

OBJECTIVES: Night shift workers suffer from sleep and daytime disturbances due to circadian misalignment. To investigate the role of environmental light in daytime sleep following 12 h-night shift work. METHODS: We...
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Melatonin inhibits nicotinic acetylcholine receptor functions in bovine chromaffin cells

Jo SH, Lee SH, Kim KT, Choi SY

Melatonin is a neurotransmitter that modulates various physiological phenomena including regulation and maintenance of the circadian rhythm. Nicotinic acetylcholine receptors (nAChRs) play an important role in oral functions including orofacial...
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Characterization of circadian blood pressure patterns using non-linear mixed effects modeling

Chae D, Kim Y, Park K

Characterizing the time course of baseline or pre-drug blood pressure is important in acquiring unbiased estimates of antihypertensive drug effect. In this study, we recruited 23 healthy male volunteers and...
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Treadmill Exercise Alleviates Circadian Rhythm Disruption-Induced Memory Deficits by Activation of Glucocorticoid Receptor and Brain-Derived Neurotrophic Factor-Dependent Pathway

Kim SE, Ko IG, Ji ES, Jin JJ, Hwang L, Kim SH, Cho S, Kim CJ, Kim K, Kim KH

PURPOSE: Circadian rhythm affects learning process, memory consolidation, and long-term memory. In this study, the alleviating effect of exercise on circadian rhythm disruption-induced memory deficits was investigated. METHODS: BMAL1 knockdown transgenic...
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The Influence of Chronotype and Self-Efficacy on Problem Drinking in Undergraduate Students

Kim JH, Song Y

PURPOSE: The aim of this study is to identify the influence of chronotype and self-efficacy on drinking problem in undergraduate students. METHODS: A cross-sectional survey design was adopted for the 177...
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Night shiftwork and prostate-specific antigen level in a tire manufacturing factory

Cho S, Park WJ, Kang W, Lim DY, Kim S, Moon JD

BACKGROUND: Recent studies suggest that night shiftwork may increase the risk of prostate cancer and elevated serum prostate-specific antigen (PSA) level. The purpose of this study was to verify whether...
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Bright Light Therapy in the Morning or at Mid-Day in the Treatment of Non-Seasonal Bipolar Depressive Episodes (LuBi): Study Protocol for a Dose Research Phase I / II Trial

Geoffroy P, El Abbassi EMB, Maruani J, Etain B, Lejoyeux M, Amad A, Courtet P, Dubertret , Gorwood P, Vaiva G, Bellivier , Chevret S

OBJECTIVE: This study protocol aims to determine, using a rigorous approach in patients with bipolar disorder (BD) and non-seasonal major depressive episode (MDE), the characteristics of bright light therapy (BLT)...
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Is the Circadian Rhythm Dysregulation a Core Pathogenetic Mechanism of Bipolar Disorder?

Lee HJ

Circadian rhythm is a periodic and continuous change in physiological, behavioral, and mental characteristics that occurs in most organisms on the Earth, because the Earth rotates in a 24-hour cycle....
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Does Psychodrama Affect Perceived Stress, Anxiety-Depression Scores and Saliva Cortisol in Patients with Depression?

Erbay LG, Reyhani I, Ünal S, Özcan C, Özgöçer T, Uçar C, Yıldız S

OBJECTIVE: Little is known about the effects of psychodrama group therapy on the level of stress, anxiety and depression of the group members, and the biological markers of stress. The...
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Circadian Regulation by REV-ERBα Mediates Hippocampal E-LTP in a Time-dependent Manner

Choi JE, Kim S, Lee J, Kim K, Kaang BK

Circadian rhythms are driven by circadian oscillators, and these rhythms result in the biological phenomenon of 24-h oscillations. Previous studies suggest that learning and memory are affected by circadian rhythms....
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Structural Equation Model for Sleep Quality of Female Shift Work Nurses

Jeong JY, Gu MO

PURPOSE: This study aimed to develop and test a structural model for sleep quality in female shift work nurses. The hypothetical model was constructed on the basis of Spielman's 3P...
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Twenty-Four Hour pH Study and Manometry in Gastric Esophageal Substitutes in Children

Kekre G, Dikshit V, Kothari P, Laddha A, Gupta A

PURPOSE: Studies on the physiology of the transposed stomach as an esophageal substitute in the form of a gastric pull-up or a gastric tube in children are limited. We conducted...
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Protein Kinase C Activity and Delayed Recovery of Sleep-Wake Cycle in Mouse Model of Bipolar Disorder

Moon E, Choe BM, Park JM, Chung YI, Lee BD, Park JH, Lee YM, Jeong HJ, Cheon Y, Choi Y, Park J

OBJECTIVE: Previous studies reported the delayed recovery group after circadian rhythm disruption in mice showed higher quinpiroleinduced locomotor activity. This study aimed to compare not only Protein Kinase C (PKC)...
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Validation of the Munich ChronoType Questionnaire in Korean Older Adults

Ryu H, Joo EY, Choi SJ, Suh S

OBJECTIVE: This study aimed to evaluate psychometric properties of the Munich ChronoType Questionnaire (MCTQ) in a sample of Korean older adults. METHODS: One-hundred ninety two participants aged 65 and over completed...
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Electroconvulsive Seizure Alters the Expression and Daily Oscillation of Circadian Genes in the Rat Frontal Cortex

Kim SH, Park HG, Jeong SH, Kang UG, Ahn YM, Kim YS

OBJECTIVE: Electroconvulsive therapy (ECT) is the most effective treatment for mood disorders. Accumulating evidence has suggested the important role of circadian genes in mood disorders. However, the effects of ECT...
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Is Advancing of Circadian Rhythm a Reason for the Rapid Treatment Effect of Electroconvulsive Therapy?

Lee HJ

No abstract available.
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