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Yang K, Jee Hyun K, Hwangbo Y, Koo D, Kim D, Sunwoo J, Hong S. 0935 Association Between Chronotype, Sleep Duration, Weekend Catch-Up Sleep, and Depression Among Korean High School Students. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.931] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
The present study aimed to examine the association between chronotype, sleep duration, weekend catch-up sleep (CUS) duration, and depression among Korean high school students.
Methods
A total of 8,565 high school students who were analyzed from 15 nationwide districts in South Korea completed an online self-report questionnaire. Depressive mood was assessed using the Korean version of the Beck Depression Inventory. The following sleep characteristics were assessed: weekday and weekend sleep durations, weekend CUS duration, chronotype, perceived sufficiency of sleep, self-reported snoring and sleep apnea, daytime sleepiness, and sleep environment. Age, sex, body mass index, number of private classes, and proneness to internet addiction were also measured. Logistic regression analysis was conducted to compute odds ratios for the association between depression and sleep characteristics, after controlling for relevant covariates.
Results
The prevalence of depression (BDI ≥ 16) was 1,794 (20.9%). In the analyses of multivariate logistic regression, the late chronotype (odds ratio [OR], 1.71; 95% CI, 1.47-1.99), female (OR, 2.24; 95% CI, 1.99-2.53), underweight (OR, 1.27; 95% CI, 1.02-1.57) and obesity (OR, 1.41; 95% CI, 1.13-1.75), weekday sleep duration (OR, 0.86; 95% CI, 0.81-0.91), weekend CUS duration ≥ 2 hours (OR, 0.68; 95% CI, 0.55-0.85), ESS (OR, 1.08; 95% CI, 1.07-1.10), much (OR, 2.15; 95% CI, 1.63-2.84) and insufficient (OR, 1.71; 95% CI, 1.46-2.01) perceived sleep, snoring (OR, 1.27; 95% CI, 1.11-1.46) and witnessed apnea (OR, 2.10; 95% CI, 1.75-2.52), increased internet addiction (OR, 1.06; 95% CI, 1.05-1.06), high number of private education (OR, 0.76; 95% CI, 0.60-0.95), and poor sleep environment (OR, 1.86; 95% CI, 1.56-2.21) were associated with depression.
Conclusion
Eveningness preference, insufficient weekday sleep duration, short weekend CUS duration, and self-reported snoring and sleep apnea were associated with an increased risk for depression.
Support
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Affiliation(s)
- K Yang
- Sleep Disorders Center, Department of Neurology, Soonchunhyang University College of Medicine, Cheonan Hospital, Cheonan, KOREA, REPUBLIC OF
| | - K Jee Hyun
- Dankook University College of Medicine, Dankook University Hospital, Cheonan, KOREA, REPUBLIC OF
| | - Y Hwangbo
- Department of Preventive Medicine, Soonchunhyang University College of Medicine, Cheonan, KOREA, REPUBLIC OF
| | - D Koo
- Department of Neurology, Seoul National University Boramae, Seoul, KOREA, REPUBLIC OF
| | - D Kim
- Department of Neurology, Chungnam National University College of Medicine, Daejeon, KOREA, REPUBLIC OF
| | - J Sunwoo
- Department of Neurosurgery, Seoul National University Hospital, Seoul, KOREA, REPUBLIC OF
| | - S Hong
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, KOREA, REPUBLIC OF
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Kim Y, Lee JW, Kim MS, Hwangbo Y, Sim JA. Factors Affecting Patients' Compliance with Hypoglycemic Agents in the Disabled. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky218.169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Y Kim
- National Cancer Center, Goyang, South Korea
| | - JW Lee
- College of Korean Medicine, Gyeongsangbuk-do, South Korea
| | - MS Kim
- National Cancer Center, Goyang, South Korea
| | - Y Hwangbo
- National Cancer Center, Goyang, South Korea
| | - J-A Sim
- National Cancer Center, Goyang, South Korea
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Yang K, Sunwoo J, Hwangbo Y, Kim W, Chu M, Yun C. 0507 Prevalence, Sleep Characteristics, And Comorbidity Of High Risk For Obstructive Sleep Apnea: A Nationwide Questionnaire Study In South Korea. Sleep 2018. [DOI: 10.1093/sleep/zsy061.506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- K Yang
- Sleep Disorders Center, Department of Neurology, Soonchunhyang University College of Medicine, Cheonan Hospital, Cheonan, KOREA, REPUBLIC OF
| | - J Sunwoo
- Department of Neurology, Soonchunhyang University College of Medicine, Seoul Hospital, Seoul, KOREA, REPUBLIC OF
| | - Y Hwangbo
- Department of Preventive Medicine, Soonchunhyang University College of Medicine, Cheonan, KOREA, REPUBLIC OF
| | - W Kim
- Department of Neurology, Gangnam Severance Hospital, Yonsei University, College of Medicine, Seoul, KOREA, REPUBLIC OF
| | - M Chu
- Department of Neurology, Hallym University College of Medicine, Seoul, KOREA, REPUBLIC OF
| | - C Yun
- Department of Neurology, Bundang Clinical Neuroscience Center, Seoul National University Bundang Hospital, Seongnam, KOREA, REPUBLIC OF
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Yang K, Shin D, Kim S, Koo B, Hwangbo Y, Han J. 0640 FACTORS AFFECTING FATIGUE SEVERITY IN PATIENTS WITH OBSTRUCTIVE SLEEP APNEA. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Hwangbo Y, Kim JH, Kim SW, Park YJ, Park DJ, Kim SY, Shin CS, Cho NH. High-normal free thyroxine levels are associated with low trabecular bone scores in euthyroid postmenopausal women. Osteoporos Int 2016; 27:457-62. [PMID: 26252978 DOI: 10.1007/s00198-015-3270-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Accepted: 07/26/2015] [Indexed: 11/24/2022]
Abstract
UNLABELLED Trabecular bone scores (TBS) have recently been developed as a diagnostic tool to assess bone texture. We studied thyroid status and TBS in a population-based cohort and demonstrated that high-normal thyroxine levels are associated with low TBS in healthy euthyroid postmenopausal women. INTRODUCTION Increased thyroid hormone levels affect bone mineral density (BMD) and, if untreated, increase the risk of fracture. However, the relationship between thyroid function and bone microarchitecture has not yet been established. Trabecular bone scores (TBS) are gray-level textural measurements of dual energy X-ray absorptiometry (DXA) images. The TBS has been proposed as an indirect index of bone microarchitecture. The goal of this study was to characterize the relationship between thyroid function and TBS in euthyroid men and postmenopausal euthyroid women. METHODS A total of 1376 euthyroid subjects (648 postmenopausal women and 728 men) were recruited from a community-based cohort in Korea. Free thyroxine (fT4) levels, thyroid stimulating hormone (TSH) levels, BMD, and TBS were measured and compared. RESULTS There was no significant relationship between either fT4 or TSH levels and BMD in men and women. Multiple linear regression analysis showed that high-normal fT4 levels were negatively correlated with TBS (β = -0.111; P = 0.002, after adjusting for both age and body mass index [BMI]) in postmenopausal women. In men, however, there was no significant correlation between fT4 levels and TBS. TSH levels were not significantly associated with TBS in either men or women. CONCLUSION Higher fT4 levels within the normal reference range are associated with deterioration of trabecular microarchitecture in healthy euthyroid postmenopausal women.
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Affiliation(s)
- Y Hwangbo
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, South Korea
| | - J H Kim
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, South Korea
| | - S W Kim
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, South Korea
| | - Y J Park
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, South Korea
| | - D J Park
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, South Korea
| | - S Y Kim
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, South Korea
| | - C S Shin
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, South Korea.
| | - N H Cho
- Department of Preventive Medicine, School of Medicine, Ajou University, 5 Wonchon-Dong, Youngtong-Gu, Suwon, 443-721, South Korea.
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Kim D, Hwangbo Y, Baek J, Bae J, Moon J, Yang K. Correlation between the apnea–hypopnea index determined by Sleepstyle HC608, a continuous positive airway pressure device and by manual scoring in patients with obstructive sleep apnea syndrome. Sleep Med 2015. [DOI: 10.1016/j.sleep.2015.02.489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Shim J, Jang JY, Hwangbo Y, Dong SH, Kim HJ, Kim BH, Chang YW, Chang R. Acquired isolated diverticulum at the ileocecal valve presenting as massive hematochezia: an unusual location and cause of gastrointestinal bleeding. Endoscopy 2009; 41 Suppl 2:E202-3. [PMID: 19637129 DOI: 10.1055/s-0029-1214858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- J Shim
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Kyung Hee University, School of Medicine, Seoul, Korea
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Park SW, Park JS, Lee YM, Lee JH, Jang AS, Kim DJ, Hwangbo Y, Uh ST, Kim YH, Park CS. Differences in radiological/HRCT findings in eosinophilic bronchitis and asthma: implication for bronchial responsiveness. Thorax 2005; 61:41-7. [PMID: 16244090 PMCID: PMC2080709 DOI: 10.1136/thx.2005.044420] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
BACKGROUND Airway hyperresponsiveness in asthmatics is considered to be one of the major consequences of airway inflammation and remodelling. Airway responsiveness is normal in patients with eosinophilic bronchitis (EB), despite eosinophilic inflammation of the airways comparable to that which occurs in asthmatics. Comparisons between asthma and EB should clarify the changes in airway morphology that are related specifically to AHR in asthmatics. METHODS Eighteen asthmatic patients, 15 patients with EB, and 11 healthy subjects were recruited. Airway wall area percentage (WA%), centrilobular prominence, and air trapping were compared using thin slice section computed tomography. RESULTS WA% was significantly greater in asthmatics than in patients with EB (72 (3.1)% v 54 (2.1)%, p = 0.032) and was similar in EB patients and controls (54 (2.1)% v 57 (1.8)%, p>0.05). Centrilobular prominence and air trapping were similar in EB patients and asthmatics and were significantly greater than in controls. CONCLUSION WA% rather than air trapping or centrilobular prominence may be associated with the airway hyperresponsiveness that occurs in asthmatics but not in patients with EB.
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Affiliation(s)
- S-W Park
- Asthma and Allergy Research Group, Department of Radiology, Soonchunhyang University Seoul, Cheonan and Bucheon Hospital, Bucheon Gyeonggi Do 420-021, Republic of Korea
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Flugel RS, Hwangbo Y, Lambalot RH, Cronan JE, Walsh CT. Holo-(acyl carrier protein) synthase and phosphopantetheinyl transfer in Escherichia coli. J Biol Chem 2000; 275:959-68. [PMID: 10625633 DOI: 10.1074/jbc.275.2.959] [Citation(s) in RCA: 111] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Holo-(acyl carrier protein) synthase (AcpS) post-translationally modifies apoacyl carrier protein (apoACP) via transfer of 4'-phosphopantetheine from coenzyme A (CoA) to the conserved serine 36 gamma-OH of apoACP. The resulting holo-acyl carrier protein (holo-ACP) is then active as the central coenzyme of fatty acid biosynthesis. The acpS gene has previously been identified and shown to be essential for Escherichia coli growth. Earlier mutagenic studies isolated the E. coli MP4 strain, whose elevated growth requirement for CoA was ascribed to a deficiency in holoACP synthesis. Sequencing of the acpS gene from the E. coli MP4 strain (denoted acpS1) showed that the AcpS1 protein contains a G4D mutation. AcpS1 exhibited a approximately 5-fold reduction in its catalytic efficiency when compared with wild type AcpS, accounting for the E. coli MP4 strain phenotype. It is shown that a conditional acpS mutant accumulates apoACP in vivo under nonpermissive conditions in a manner similar to the E. coli MP4 strain. In addition, it is demonstrated that the gene product, YhhU, of a previously identified E. coli open reading frame can completely suppress the acpS conditional, lethal phenotype upon overexpression of the protein, suggesting that YhhU may be involved in an alternative pathway for phosphopantetheinyl transfer and holoACP synthesis in E. coli.
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Affiliation(s)
- R S Flugel
- Committee on Higher Degrees in Biophysics, Harvard University, Cambridge, Massachusetts 02138, USA
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