1
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Lee DB, Yoon DW, Baik I. Association of insomnia and daytime napping with metabolic syndrome and its components in a Korean population: an analysis of data from the Korean Genome and Epidemiology Study. Epidemiol Health 2024:e2024031. [PMID: 38453335 DOI: 10.4178/epih.e2024031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 01/24/2024] [Indexed: 03/09/2024] Open
Abstract
Objectives We investigated the association between metabolic syndrome (MetS) and the coexistence of insomnia and daytime napping, because limited data have been reported regarding this association. Methods The study population was 8,440 participants aged 40-65 years, who were from the Korean Genome and Epidemiology Study. Self-reported information on insomnia symptoms and nap duration was used to define exposure variables. Data on waist circumference (WC), blood pressure (BP), and fasting blood glucose (FBG), triglyceride (TG) and high-density lipoprotein cholesterol levels in blood were used to define MetS. Multivariate logistic regression analysis was performed to obtain odds ratio (OR) and 95% confidence interval (CI). Results In multivariate logistic regression analysis, the coexistence of insomnia and napping was not significantly associated with MetS. However, the insomnia and non-napping group showed higher ORs of high TG (OR=1.19; 95% CI, 1.02-1.39) and high BP (OR=1.28; 95% CI, 1.10-1.49) than the non-insomnia and non-napping group. The combination of non-insomnia and napping and that of insomnia and napping showed higher ORs of high TG (OR=1.13; 95% CI, 1.00-1.29) and high FBG (OR=1.59; 95% CI, 1.14-2.21), respectively. In analyses of insomnia symptoms, only the combination of difficulty in maintaining sleep (DMS) and non-napping showed a higher OR for MetS (OR=1.25; 95% CI, 1.03-1.52) than the non-DMS and non-napping group. Conclusion Individuals with insomnia, particularly those who do not take naps, were disproportionately likely to have MetS components, especially TG or BP. Information on these variables may help predict individuals' vulnerability to specific MetS components.
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2
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Yoon DW, Baik I. Oral Administration of Human-Gut-Derived Prevotella histicola Improves Sleep Architecture in Rats. Microorganisms 2023; 11:1151. [PMID: 37317125 DOI: 10.3390/microorganisms11051151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 04/21/2023] [Accepted: 04/22/2023] [Indexed: 06/16/2023] Open
Abstract
(1) Background: The human gut microbiome may regulate sleep through the gut-brain axis. However, the sleep-promoting effects of gut microbiota remain unclear. (2) Methods: We obtained sleep-wake profiles from 25 rats receiving P. histicola (P. histicola group), 5 rats receiving P. stercorea (P. stercorea group), 4 rats not receiving bacteria (No administration group), and 8 rats receiving P. histicola extracellular vesicles (EV) (EV group) during the baseline, administration, and withdrawal periods. (3) Results: The P. histicola group showed increased total sleep, rapid eye movement (REM) sleep, and non-rapid eye movement (NREM) sleep time during the administration and withdrawal periods; on the last day of administration, we found significant increases of 52 min for total sleep (p < 0.01), 13 min for REM sleep (p < 0.05), and 39 min for NREM sleep (p < 0.01) over the baseline. EV administration also increased NREM sleep time on Day 3 of administration (p = 0.05). We observed a linear trend in the dose-response relationship for total sleep and NREM sleep in the P. histicola group. However, neither the no-administration group nor the P. stercorea group showed significant findings. (4) Conclusions: Oral administration of probiotic P. histicola may improve sleep and could be a potential sleep aid. Further rigorous evaluations for the safety and efficacy of P. histicola supplementation are warranted.
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Affiliation(s)
- Dae Wui Yoon
- Department of Biomedical Laboratory Science, Jungwon University, Goesan-gun 28204, Chungcheongbuk-do, Republic of Korea
| | - Inkyung Baik
- Department of Foods and Nutrition, College of Science and Technology, Kookmin University, Seoul 02707, Republic of Korea
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3
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Kim J, Pyo SS, Yoon DW. Obesity, Obstructive Sleep Apnea, and Metabolic Dysfunction. Korean J Clin Lab Sci 2021. [DOI: 10.15324/kjcls.2021.53.4.285] [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: 11/05/2022] Open
Affiliation(s)
- Jinkwan Kim
- Department of Biomedical Laboratory Science, Jungwon University, Goesan, Korea
- Sleep Medicine Institute, Jungwon University, Goesan, Korea
| | - Sang Shin Pyo
- Department of Biomedical Laboratory Science, Jungwon University, Goesan, Korea
- Sleep Medicine Institute, Jungwon University, Goesan, Korea
| | - Dae Wui Yoon
- Department of Biomedical Laboratory Science, Jungwon University, Goesan, Korea
- Sleep Medicine Institute, Jungwon University, Goesan, Korea
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4
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Fortibui MM, Yoon DW, Lim JY, Lee S, Choi M, Heo JS, Kim J, Kim J. A cancer cell-specific benzoxadiazole-based fluorescent probe for hydrogen sulfide detection in mitochondria. Dalton Trans 2021; 50:2545-2554. [PMID: 33522560 DOI: 10.1039/d0dt03653f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The present work describes the design and biological applications of a novel colorimetric and fluorescence turn-on probe for hydrosulfide detection. The probe was designed to introduce hemicyanine as the fluorescent skeleton and 7-nitro-1,2,3-benzoxadiazole as the recognition site. The optical properties and responses of the probe towards HS-, anions and some biothiols indicate an impressively high selectivity of the probe towards HS- such that it can be effectively used as an indicator for monitoring the level of HS- in living cells. In biological experiments using the probe, the H2S levels are found to be higher in cancer cells than in normal cells. In addition, the probe is shown to specifically and rapidly detect endogenous H2S, which is produced primarily in the mitochondria of cancer cells, as demonstrated by a co-localization experiment using specific trackers for the detection of cellular organelles in pharmacological inhibition or stimulation studies, without any significant cytotoxic effects. Thus, the results of the chemical and biological experiments described herein demonstrate the potential of this novel probe to specifically, safely, and rapidly detect H2S to distinguish cancer cells from normal cells by targeting it specifically in mitochondria.
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Affiliation(s)
- Maxine Mambo Fortibui
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea.
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5
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Lee S, Yoon DW, Kim J, Suh YW, Shin C. Cataracts are Associated with the Coexistence of Moderate to Severe Obstructive Sleep Apnea and Diabetes Mellitus. Sleep Med Res 2020. [DOI: 10.17241/smr.2020.00570] [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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6
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Yoon DW, Shin HW. Sleep Tests in the Non-Contact Era of the COVID-19 Pandemic: Home Sleep Tests Versus In-Laboratory Polysomnography. Clin Exp Otorhinolaryngol 2020; 13:318-319. [PMID: 33176398 PMCID: PMC7669320 DOI: 10.21053/ceo.2020.01599] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 08/10/2020] [Indexed: 11/22/2022] Open
Affiliation(s)
- Dae Wui Yoon
- Department of Biomedical Laboratory Science, Jungwon University, Goesan, Korea
| | - Hyun-Woo Shin
- Obstructive Upper Airway Research (OUaR) Laboratory, Department of Pharmacology, Seoul National University College of Medicine, Seoul, Korea.,Ischemic/Hypoxic Disease Institute, Seoul National University College of Medicine, Seoul, Korea.,Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea.,Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul, Korea
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7
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Cha JJ, Mandal C, Ghee JY, Yoo JA, Lee MJ, Kang YS, Hyun YY, Lee JE, Kim HW, Han SY, Han JY, Chung AY, Yoon DW, Rhyu IJ, Oh J, Cha DR. Inhibition of Renal Stellate Cell Activation Reduces Renal Fibrosis. Biomedicines 2020; 8:biomedicines8100431. [PMID: 33086608 PMCID: PMC7603238 DOI: 10.3390/biomedicines8100431] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 10/16/2020] [Accepted: 10/16/2020] [Indexed: 02/06/2023] Open
Abstract
Interstitial fibrosis is a common feature of chronic kidney disease, and platelet-derived growth factor receptor-β (PDGFR-β)-positive mesenchymal cells are reportedly the major source of scar-producing myofibroblasts. We had previously demonstrated that albumin and its derivative R-III (a retinol-binding protein-albumin domain III fusion protein) inhibited the transdifferentiation/activation of hepatic stellate cells (HSCs) to myofibroblasts and that R-III administration reduced liver fibrosis. In this study, we isolated cells (referred to as renal stellate cells, RSCs) from rat kidney tissues using the HSC isolation protocol and compared their morphological and biochemical characteristics with those of HSCs. RSCs shared many characteristics with HSCs, such as storage of vitamin A-containing lipid droplets and expression of HSC markers as well as pericyte markers. RSCs underwent spontaneous transdifferentiation into myofibroblasts in in vitro culture, which was inhibited by albumin expression or R-III treatment. We also evaluated the therapeutic effects of R-III in unilateral ureteral obstruction (UUO)-induced renal fibrosis in mice. Injected R-III localized predominantly in cytoglobin/stellate cell activation-associated protein (Cygb/STAP)-positive cells in the kidney and reduced renal fibrosis. These findings suggest that RSCs can be recognized as the renal counterparts of HSCs and that RSCs represent an attractive therapeutic target for anti-fibrotic therapy.
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Affiliation(s)
- Jin Joo Cha
- Department of Nephrology, Korea University Ansan Hospital, Ansan 15355, Korea; (J.J.C.); (J.Y.G.); (J.A.Y.); (M.J.L.); (Y.S.K.)
| | - Chanchal Mandal
- Department of Anatomy, Korea University College of Medicine, Seoul 02841, Korea; (C.M.); (A.Y.C.); (D.W.Y.); (I.J.R.)
| | - Jung Yeon Ghee
- Department of Nephrology, Korea University Ansan Hospital, Ansan 15355, Korea; (J.J.C.); (J.Y.G.); (J.A.Y.); (M.J.L.); (Y.S.K.)
| | - Ji Ae Yoo
- Department of Nephrology, Korea University Ansan Hospital, Ansan 15355, Korea; (J.J.C.); (J.Y.G.); (J.A.Y.); (M.J.L.); (Y.S.K.)
| | - Mi Jin Lee
- Department of Nephrology, Korea University Ansan Hospital, Ansan 15355, Korea; (J.J.C.); (J.Y.G.); (J.A.Y.); (M.J.L.); (Y.S.K.)
| | - Young Sun Kang
- Department of Nephrology, Korea University Ansan Hospital, Ansan 15355, Korea; (J.J.C.); (J.Y.G.); (J.A.Y.); (M.J.L.); (Y.S.K.)
| | - Young Youl Hyun
- Department of Nephrology, Kangbuk Samsung Hospital, Sungkyunkwan University, Seoul 03181, Korea;
| | - Ji Eun Lee
- Department of Nephrology, Wonkwang University Sanbon Hospital, Gunpo 15865, Korea; (J.E.L.); (H.W.K.)
| | - Hyun Wook Kim
- Department of Nephrology, Wonkwang University Sanbon Hospital, Gunpo 15865, Korea; (J.E.L.); (H.W.K.)
| | - Sang Youb Han
- Department of Nephrology, Inje University Ilsan Paik Hospital, Ilsan 10380, Korea;
| | - Jee Young Han
- Department of Pathology, Inha University Hospital, Incheon 22332, Korea;
| | - Ah Young Chung
- Department of Anatomy, Korea University College of Medicine, Seoul 02841, Korea; (C.M.); (A.Y.C.); (D.W.Y.); (I.J.R.)
| | - Dae Wui Yoon
- Department of Anatomy, Korea University College of Medicine, Seoul 02841, Korea; (C.M.); (A.Y.C.); (D.W.Y.); (I.J.R.)
| | - Im Joo Rhyu
- Department of Anatomy, Korea University College of Medicine, Seoul 02841, Korea; (C.M.); (A.Y.C.); (D.W.Y.); (I.J.R.)
| | - Junseo Oh
- Department of Anatomy, Korea University College of Medicine, Seoul 02841, Korea; (C.M.); (A.Y.C.); (D.W.Y.); (I.J.R.)
- Correspondence: (J.O.); (D.R.C.); Tel.: +82-2-2286-1389 (J.O.); +82-31-412-5572 (D.R.C.)
| | - Dae Ryong Cha
- Department of Nephrology, Korea University Ansan Hospital, Ansan 15355, Korea; (J.J.C.); (J.Y.G.); (J.A.Y.); (M.J.L.); (Y.S.K.)
- Correspondence: (J.O.); (D.R.C.); Tel.: +82-2-2286-1389 (J.O.); +82-31-412-5572 (D.R.C.)
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8
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Heo JS, Pyo S, Lim JY, Yoon DW, Kim BY, Kim JH, Kim GJ, Lee SG, Kim J. Biological effects of melatonin on human adipose‑derived mesenchymal stem cells. Int J Mol Med 2019; 44:2234-2244. [PMID: 31573052 PMCID: PMC6844604 DOI: 10.3892/ijmm.2019.4356] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 09/11/2019] [Indexed: 12/14/2022] Open
Abstract
Mesenchymal stem cells (MSCs) are capable of differentiating into other cell types and exhibit immunomodulatory effects. MSCs are affected by several intrinsic and extrinsic signaling modulators, including growth factors, cytokines, extracellular matrix and hormones. Melatonin, produced by the pineal gland, is a hormone that regulates sleep cycles. Recent studies have shown that melatonin improves the therapeutic effects of stem cells. The present study aimed to investigate whether melatonin enhances the biological activities of human adipose-derived MSCs. The results demonstrated that treatment with melatonin promoted cell proliferation by inducing SRY-box transcription factor 2 gene expression and preventing replicative senescence. In addition, melatonin exerted anti-adipogenic effects on MSCs. PCR analysis revealed that the expression of the CCAAT enhancer binding protein a gene, a key transcription factor in adipogenesis, was decreased following melatonin treatment, resulting in reduced adipogenic differentiation in an in vitro assay. The present study also examined the effect of melatonin on the immunomodulatory response using a co-culture system of human peripheral blood mononuclear cells and MSCs. Activated T cells were strongly inhibited following melatonin exposure compared with those in the control group. Finally, the favorable effects of melatonin on MSCs were confirmed using luzindole, a selective melatonin receptor antagonist. The proliferation-promoting, anti-inflammatory effects of melatonin suggested that melatonin-treated MSCs may be used for effective cell therapy.
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Affiliation(s)
- June Seok Heo
- Department of Integrated Biomedical and Life Sciences, College of Health Science, Korea University, Seoul 02841, Republic of Korea
| | - Sangshin Pyo
- Department of Integrated Biomedical and Life Sciences, College of Health Science, Korea University, Seoul 02841, Republic of Korea
| | - Ja-Yun Lim
- Department of Integrated Biomedical and Life Sciences, College of Health Science, Korea University, Seoul 02841, Republic of Korea
| | - Dae Wui Yoon
- Department of Biomedical Laboratory Science, College of Health Science, Jungwon University, Geosan, Chungbuk 28024, Republic of Korea
| | - Bo Yong Kim
- Department of Health and Environmental Science, College of Health Science, Korea University, Seoul 02841, Republic of Korea
| | - Jin-Hee Kim
- Department of Biomedical Laboratory Science, College of Health Science, Cheongju University, Cheongju, North Chungcheong 28497, Republic of Korea
| | - Gi Jin Kim
- Department of Biomedical Science, CHA University, Seongnam, Gyeonggi 13488, Republic of Korea
| | - Seung Gwan Lee
- Department of Health and Environmental Science, College of Health Science, Korea University, Seoul 02841, Republic of Korea
| | - Jinkwan Kim
- Department of Biomedical Laboratory Science, College of Health Science, Jungwon University, Geosan, Chungbuk 28024, Republic of Korea
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9
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Singh H, Lim J, Sharma A, Yoon DW, Kim JH, Yang Z, Qu J, Kim J, Lee SG, Kim JS. A pH‐Responsive Glycyrrhetinic‐Acid‐Modified Small‐Molecule Conjugate for NIR Imaging of Hepatocellular Carcinoma (HCC). Chembiochem 2019; 20:614-620. [DOI: 10.1002/cbic.201800619] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Indexed: 12/18/2022]
Affiliation(s)
- Hardev Singh
- Department of ChemistryKorea University 145, Anam-ro Seoul 02841 Republic of Korea
| | - Ja‐Yun Lim
- Department of Health and Environmental ScienceCollege of Health ScienceKorea University 85 Munmu-ro Seoul Republic of Korea
| | - Amit Sharma
- Department of ChemistryKorea University 145, Anam-ro Seoul 02841 Republic of Korea
| | - Dae Wui Yoon
- Department of Health and Environmental ScienceCollege of Health ScienceKorea University 85 Munmu-ro Seoul Republic of Korea
| | - Ji Hyeon Kim
- Department of ChemistryKorea University 145, Anam-ro Seoul 02841 Republic of Korea
| | - Zhigang Yang
- Key Laboratory of Optoelectronic Devices and Systemsof the Ministry of Education and Guangdong ProvinceCollege of Optoelectronic EngineeringShenzhen University Shenzhen 518060 P.R. China
| | - Junle Qu
- Key Laboratory of Optoelectronic Devices and Systemsof the Ministry of Education and Guangdong ProvinceCollege of Optoelectronic EngineeringShenzhen University Shenzhen 518060 P.R. China
| | - Jinkwan Kim
- Department of Biomedical Laboratory ScienceJungwon University Chung-Buk 28024 Republic of Korea
| | - Seung Gwan Lee
- Department of Health and Environmental ScienceCollege of Health ScienceKorea University 85 Munmu-ro Seoul Republic of Korea
| | - Jong Seung Kim
- Department of ChemistryKorea University 145, Anam-ro Seoul 02841 Republic of Korea
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10
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Yoon DW, Kim YS, Hwang S, Khalmuratova R, Lee M, Kim JH, Lee GY, Koh SJ, Park JW, Shin HW. Intermittent hypoxia promotes carcinogenesis in azoxymethane and dextran sodium sulfate-induced colon cancer model. Mol Carcinog 2019; 58:654-665. [PMID: 30575123 DOI: 10.1002/mc.22957] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 10/30/2018] [Accepted: 12/15/2018] [Indexed: 02/06/2023]
Abstract
Intermittent hypoxia (IH), a characteristic of obstructive sleep apnea, is known to promote cancer progression and aggressiveness in mouse models. However, little is known regarding the effect of IH on cancer initiation. Here, the effect of IH on carcinogenesis was explored in azoxymethane (AOM) and dextran sodium sulfate (DSS)-induced colon cancer models with three different protocols. In the first protocol, two other application time points (early or late initiation of IH) were applied. In the second protocol, mice were divided into only two groups, and then exposed to either N or IH conditions for 14 days. In the third protocol, a pharmacological inhibition study for anti-inflammation (5-aminosalicylate) or anti-oxidative stress (N-acetylcysteine [NAC]) was performed. The number of tumors was significantly higher in the IH-1 than in the N or IH-2 groups. 8-oxo-2'-deoxyguanosine (8-OHdG) levels were higher in tumors of the IH-1 group than in that of the N and IH-2 groups. Gene expression related to reactive oxygen species production was higher in the IH-1 group than in the N and IH-2 groups, and it showed a positive correlation with 8-OHdG levels. Prior to cancer development 8-OHdG levels were already elevated in colonic epithelial regions in the IH group, possibly due to an imbalance between oxidative stress and antioxidant systems. NAC treatment resulted in a significant reduction in the number of tumors in mice exposed to IH. In conclusion, IH promotes carcinogenesis in a chemically-induced colon cancer model where elevated 8-OHdG may contribute to the increased tumor induction.
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Affiliation(s)
- Dae Wui Yoon
- Obstructive Upper airway Research (OUaR) Laboratory, Department of Pharmacology, Seoul National University College of Medicine, Seoul, Korea
| | - Yi-Sook Kim
- Obstructive Upper airway Research (OUaR) Laboratory, Department of Pharmacology, Seoul National University College of Medicine, Seoul, Korea.,Department of Biomedical Science, Seoul National University Graduate School, Seoul, Korea
| | - Soyoung Hwang
- Obstructive Upper airway Research (OUaR) Laboratory, Department of Pharmacology, Seoul National University College of Medicine, Seoul, Korea.,Department of Biomedical Science, Seoul National University Graduate School, Seoul, Korea
| | - Roza Khalmuratova
- Obstructive Upper airway Research (OUaR) Laboratory, Department of Pharmacology, Seoul National University College of Medicine, Seoul, Korea
| | - Mingyu Lee
- Obstructive Upper airway Research (OUaR) Laboratory, Department of Pharmacology, Seoul National University College of Medicine, Seoul, Korea.,Department of Biomedical Science, Seoul National University Graduate School, Seoul, Korea
| | - Jee Hyun Kim
- Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Gah Young Lee
- Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Seong-Joon Koh
- Division of Gastroenterology, Department of Internal Medicine, Seoul National University Boramae Hospital, Seoul, Korea
| | - Jong-Wan Park
- Obstructive Upper airway Research (OUaR) Laboratory, Department of Pharmacology, Seoul National University College of Medicine, Seoul, Korea.,Department of Biomedical Science, Seoul National University Graduate School, Seoul, Korea.,Ischemic/Hypoxic Disease Institute, Seoul National University College of Medicine, Seoul, Korea.,Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Hyun-Woo Shin
- Obstructive Upper airway Research (OUaR) Laboratory, Department of Pharmacology, Seoul National University College of Medicine, Seoul, Korea.,Department of Biomedical Science, Seoul National University Graduate School, Seoul, Korea.,Ischemic/Hypoxic Disease Institute, Seoul National University College of Medicine, Seoul, Korea.,Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea.,Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul, Korea
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11
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Kim J, Pyo S, Yoon DW, Lee S, Lim JY, Heo JS, Lee S, Shin C. The co-existence of elevated high sensitivity C-reactive protein and homocysteine levels is associated with increased risk of metabolic syndrome: A 6-year follow-up study. PLoS One 2018; 13:e0206157. [PMID: 30352089 PMCID: PMC6198954 DOI: 10.1371/journal.pone.0206157] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 10/07/2018] [Indexed: 12/13/2022] Open
Abstract
Accumulating evidence has revealed that both high sensitivity C-reactive protein (hsCRP) and homocysteine (HCY) are associated with increased risk of metabolic syndrome (MetS) and cardiovascular disease. However, it is unclear whether the coexistence of these conditions accelerates the risk of metabolic syndrome (MetS). We hypothesized that the combination of high sensitivity C-reactive protein (hsCRP) and homocysteine (HCY) levels could exacerbate the development of MetS in a large prospective cohort study. We selected data from 3,170 individuals (1,614 men and 1,556 women) who participated in the Korean Genome and Epidemiology Study. Participants with high hsCRP and HCY levels were categorized into quartiles. MetS was defined based on the criteria of the modified National Cholesterol Education Program, Adult Treatment Panel III. The prevalence of MetS was higher in participants with concurrent high hsCRP and HCY compared to those with low hsCRP and HCY levels. The incidence of MetS at the 6-year follow-up was the highest in participants with concomitant high hsCRP and HCY levels, regardless of obesity. Even after adjusting for potential confounding factors including body mass index in a multivariate logistic regression model, subjects with elevated hsCRP and HCY levels had a 2.50-fold increased risk of developing MetS at the six-year follow-up compared to those who did not have high hsCRP and HCY level. MetS is more prevalent in the concurrent presence of elevated hsCRP and HCY levels. The combination of the two conditions may contribute to an increased risk of MetS, but these factors may not be synergistic.
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Affiliation(s)
- Jinkwan Kim
- Department of Biomedical Laboratory Science, College of Health Science, Jungwon University, Geo-San, Republic of Korea
| | - Sangshin Pyo
- Department of Integrated Biomedical and Life Sciences, College of Health Science, Korea University, Seoul, Korea
| | - Dae Wui Yoon
- Institute of Human Genomic Study, Korea University Ansan Hospital, Korea University, Ansan, Republic of Korea
| | - Seungkwan Lee
- Department of Integrated Biomedical and Life Sciences, College of Health Science, Korea University, Seoul, Korea
| | - Ja-Yun Lim
- Department of Integrated Biomedical and Life Sciences, College of Health Science, Korea University, Seoul, Korea
| | - June seok Heo
- Department of Integrated Biomedical and Life Sciences, College of Health Science, Korea University, Seoul, Korea
| | - Seungku Lee
- Institute of Human Genomic Study, Korea University Ansan Hospital, Korea University, Ansan, Republic of Korea
| | - Chol Shin
- Institute of Human Genomic Study, Korea University Ansan Hospital, Korea University, Ansan, Republic of Korea
- Division of Pulmonary, Sleep, and Critical Care Medicine, Department of Internal Medicine, Korea University Ansan Hospital, Ansan, Republic of Korea
- * E-mail:
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12
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Heo JI, Yoon DW, Yu JH, Kim NH, Yoo HJ, Seo JA, Kim SG, Choi KM, Baik SH, Choi DS, Kim NH. Melatonin improves insulin resistance and hepatic steatosis through attenuation of alpha-2-HS-glycoprotein. J Pineal Res 2018; 65:e12493. [PMID: 29607540 DOI: 10.1111/jpi.12493] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [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: 10/25/2017] [Accepted: 03/05/2018] [Indexed: 12/21/2022]
Abstract
Melatonin plays an important role in regulating circadian rhythms. It also acts as a potent antioxidant and regulates glucose and lipid metabolism, although the exact action mechanism is not clear. The α2-HS-glycoprotein gene (AHSG) and its protein, fetuin-A (FETUA), are one of the hepatokines and are known to be associated with insulin resistance and type 2 diabetes. The aim of this study was to determine whether melatonin improves hepatic insulin resistance and hepatic steatosis in a FETUA-dependent manner. In HepG2 cells treated with 300 μmol/L of palmitic acid, phosphorylated AKT expression decreased, and FETUA expression increased, but this effect was inhibited by treatment with 10 μmol/L of melatonin. However, melatonin did not improve insulin resistance in FETUA-overexpressing cells, indicating that improvement in insulin resistance by melatonin was dependent on downregulation of FETUA. Moreover, melatonin decreased palmitic acid-induced ER stress markers, CHOP, Bip, ATF-6, XBP-1, ATF-4, and PERK. In addition, in the high-fat diet (HFD) mice, oral treatment with 100 mg/kg/day melatonin for 10 weeks reduced body weight gain to one-third of that of the HFD group and hepatic steatosis. Insulin sensitivity and glucose intolerance improved with the upregulation of muscle p-AKT protein expression. FETUA expression and ER stress markers in the liver and serum of HFD mice were decreased by melatonin treatment. In conclusion, melatonin can improve hepatic insulin resistance and hepatic steatosis through reduction in ER stress and the resultant AHSG expression.
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Affiliation(s)
- Jee-In Heo
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Ansan, Korea
| | - Dae Wui Yoon
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Ansan, Korea
- Department of Pharmacology, College of Medicine, Seoul National University, Seoul, Korea
| | - Ji Hee Yu
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Ansan, Korea
| | - Nam Hoon Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Ansan, Korea
| | - Hye Jin Yoo
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Ansan, Korea
| | - Ji A Seo
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Ansan, Korea
| | - Sin Gon Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Ansan, Korea
| | - Kyung Mook Choi
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Ansan, Korea
| | - Sei Hyun Baik
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Ansan, Korea
| | - Dong Seop Choi
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Ansan, Korea
| | - Nan Hee Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Ansan, Korea
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Lee SK, Yoon DW, Kim J, Lee SW, Kim JY, Jee SH, Baik I, Shin C. Association of adiponectin, ghrelin, and leptin with metabolic syndrome and its metabolic components in Sasang constitutional type. Eur J Integr Med 2018. [DOI: 10.1016/j.eujim.2018.07.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Kim J, Lee SK, Yoon DW, Shin C. Concurrent Presence of Obstructive Sleep Apnea and Elevated Homocysteine Levels Exacerbate the Development of Hypertension: A KoGES Six-year Follow-up Study. Sci Rep 2018; 8:2665. [PMID: 29422547 PMCID: PMC5805705 DOI: 10.1038/s41598-018-21033-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 01/29/2018] [Indexed: 01/29/2023] Open
Abstract
Accumulating evidence has revealed that obstructive sleep apnea (OSA) and high homocysteine (Hcy) levels play important roles in the increased risk of hypertension and cardiovascular disease. We investigated whether the presence of elevated Hcy levels among individuals with OSA increase the risk of hypertension in a cohort study. A total of 1825 participants were selected from the cohort study. A high homocysteine level (Hcy) was defined as those in the 75th percentile of Hcy levels of the study cohort. The prevalence of hypertension was higher among subjects with OSA and high Hcy levels than among the other groups stratified by the presence of OSA and high Hcy levels. The incidence of hypertension at 6-year follow-up was: Hcy[-]/OSA[-] vs. Hcy[+]/OSA[-] vs. Hcy[-]/OSA[+] vs. Hcy[+]/OSA[+], 14.2% vs. 19.8% vs. 24.2% vs. 36.1%. After adjusting for confounding factors, subjects with OSA and high Hcy levels had a 1.86-fold risk of developing hypertension compared to those without OSA and high Hcy levels. Moderate to severe OSA group with the highest tertile of Hcy levels had a 2.31-fold increased risk of developing hypertension. Interaction between Hcy and OSA on development of hypertension was significant, suggesting that these conditions may constitute an important determinant.
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Affiliation(s)
- Jinkwan Kim
- Department of Biomedical Laboratory Science, College of Health Science, Jungwon University, Geo-San, Republic of Korea
| | - Seung Ku Lee
- Institute of Human Genomic Study, Korea University Ansan Hospital, Korea University, Ansan, Republic of Korea
| | - Dae Wui Yoon
- Institute of Human Genomic Study, Korea University Ansan Hospital, Korea University, Ansan, Republic of Korea
| | - Chol Shin
- Department of Pulmonary Sleep and Critical Care Medicine Disorder Center, College of Medicine, Korea University, Ansan, Republic of Korea.
- Institute of Human Genomic Study, Korea University Ansan Hospital, Korea University, Ansan, Republic of Korea.
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Abstract
Overlap syndrome of chronic obstructive pulmonary disease (COPD) and obstructive sleep apnea (OSA) leads to increased morbidity and mortality. There have been no reports available on the overlap syndrome for Koreans. Our primary aim was to identify prevalence and predictors of the overlap syndrome in Koreans.This is a cross-sectional study with a community-based sample of 1298 participants (mean age, 59.7 ± 6.7) from the cohort of Korean Genomic and Epidemiologic Study during 2013 to 2014. OSA and COPD were assessed by apnea-hypopnea index (AHI) and the ratio of forced expiratory volume in 1 s to forced vital capacity (FEV1/FVC < 70%), respectively, based on polysomnography and spirometry measurements. Using logistic regression with adjustment for the confounders identified by univariate analysis, odds ratio (OR) was estimated with 95% confidence interval (CI) of COPD among those with OSA.The prevalence rate of OSA was 45.8%, of which 32.8% were moderate-to-severe (AHI ≥ 15); 10.8% of those having OSA also had COPD, that is, the overlap syndrome. The prevalence of COPD remained the same as 10.8% regardless of the presence of OSA. The mean ratio of FEV1/FVC for those with COPD was 0.77, regardless of OSA. The OR increased for age (OR, 1.1; 95% CI, 1.0-1.1) and smokers (OR, 3.6; 95% CI, 2.0-6.4), but decreased for body mass index (BMI) (OR, 0.84; 95% CI, 0.8-0.9) and overweight state (OR, 0.4; 95% CI, 0.2-0.7). Risk factors of the overlap syndrome differed by OSA severity, that is, BMI in those with moderate-to-severe OSA, whereas sex (OR, 4.7; 95% CI, 2.1-10.6) and age (OR, 1.1; 95% CI, 1.0-1.1) in those with mild OSA.In a population study from Korea, 10.8% of OSA patients had an overlap syndrome with COPD. Although BMI is a well-known risk factor of OSA, it is likely that being overweight may be protective for moderate-to-severe OSA patients from the risk of COPD (i.e., overlap syndrome).
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Affiliation(s)
- Kyung-Mee Choi
- Institute of Human Genomic Study, Korea University Ansan Hospital, Korea University, Ansan
- Korea Health Promotion Institute, Seoul, South Korea
| | - Robert J. Thomas
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA
| | - Jinkwan Kim
- Department of Biomedical Laboratory Science, College of Health Science, Jungwon University, Geo-San
| | - Seung Ku Lee
- Institute of Human Genomic Study, Korea University Ansan Hospital, Korea University, Ansan
| | - Dae Wui Yoon
- Institute of Human Genomic Study, Korea University Ansan Hospital, Korea University, Ansan
| | - Chol Shin
- Institute of Human Genomic Study, Korea University Ansan Hospital, Korea University, Ansan
- Institute of Human Genomic Study, Department of Pulmonary Sleep and Critical Care Medicine Disorder Center, Korea University Ansan Hospital, Ansan, South Korea
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Yoon DW, Shin S, Choi J, Shin C, Lee C, Lee J, Hong HJ, Jo R, Lee T, Kim J, Jun N, Lee SK, Kim J, Jwa HJ. Sleep Fragmentation Induces Activation of NOD-Like Receptor Protein-3 Inflammasome in Rat Hippocampus. Sleep Med Res 2017. [DOI: 10.17241/smr.2017.00017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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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17
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Yoon DW, So D, Min S, Kim J, Lee M, Khalmuratova R, Cho CH, Park JW, Shin HW. Accelerated tumor growth under intermittent hypoxia is associated with hypoxia-inducible factor-1-dependent adaptive responses to hypoxia. Oncotarget 2017; 8:61592-61603. [PMID: 28977888 PMCID: PMC5617448 DOI: 10.18632/oncotarget.18644] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 05/29/2017] [Indexed: 12/16/2022] Open
Abstract
Mounting evidence has revealed a causative role of intermittent hypoxia (IH) in cancer progression in mouse models of obstructive sleep apnea (OSA), but most studies have focused on the effects of IH following tumor implantation using an exposure to single IH frequency. Thus, we aimed to investigate 1) the potential effect of IH on the initial tumor growth in patients with OSA without an interaction with other mechanisms induced by IH in mice and 2) the influence of the IH frequency on tumor growth, which were tested using pre-conditioning with IH (Pre-IH) and 2 different IH frequencies, respectively. Pre-IH was achieved by alternatively maintaining melanoma cells between normoxia (10 min, 21% O2) and hypoxia (50 min, 1% O2) for 7 days (12 cycles per day) before administering them to mice. The conditions for IH-1 and IH-2 were 90 s of 12% FiO2 followed by 270s of 21% FiO2 (10 cycles/h), and 90 s of 12% FiO2 and 90 s of 21% FiO2 (20 cycles/h), respectively, for 8 h per day. Tumor growth was significantly higher in the Pre-IH group than in the normoxia group. In addition, the IH-2 group showed more accelerated tumor growth compared to the normoxia and IH-1 groups. Immunohistochemistry and gene-expression results consistently showed the up-regulation of molecules associated with HIF-1α-dependent hypoxic adaptation in tumors of the Pre-IH and IH-2 groups. Our findings reveal that IH increased tumor progression in a frequency-dependent manner, regardless of whether it was introduced before or after in vivo tumor cell implantation.
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Affiliation(s)
- Dae Wui Yoon
- Obstructive Upper Airway Research (OUaR) Laboratory, Department of Pharmacology, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Daeho So
- Department of Biomedical Science, Seoul National University Graduate School, Seoul 03080, Korea
| | - Sra Min
- Obstructive Upper Airway Research (OUaR) Laboratory, Department of Pharmacology, Seoul National University College of Medicine, Seoul 03080, Korea.,Department of Biomedical Science, Seoul National University Graduate School, Seoul 03080, Korea
| | - Jiyoung Kim
- Obstructive Upper Airway Research (OUaR) Laboratory, Department of Pharmacology, Seoul National University College of Medicine, Seoul 03080, Korea.,Department of Biomedical Science, Seoul National University Graduate School, Seoul 03080, Korea
| | - Mingyu Lee
- Obstructive Upper Airway Research (OUaR) Laboratory, Department of Pharmacology, Seoul National University College of Medicine, Seoul 03080, Korea.,Department of Biomedical Science, Seoul National University Graduate School, Seoul 03080, Korea
| | - Roza Khalmuratova
- Obstructive Upper Airway Research (OUaR) Laboratory, Department of Pharmacology, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Chung-Hyun Cho
- Obstructive Upper Airway Research (OUaR) Laboratory, Department of Pharmacology, Seoul National University College of Medicine, Seoul 03080, Korea.,Department of Biomedical Science, Seoul National University Graduate School, Seoul 03080, Korea.,Ischemic/Hypoxic Disease Institute, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Jong-Wan Park
- Obstructive Upper Airway Research (OUaR) Laboratory, Department of Pharmacology, Seoul National University College of Medicine, Seoul 03080, Korea.,Department of Biomedical Science, Seoul National University Graduate School, Seoul 03080, Korea.,Ischemic/Hypoxic Disease Institute, Seoul National University College of Medicine, Seoul 03080, Korea.,Cancer Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Hyun-Woo Shin
- Obstructive Upper Airway Research (OUaR) Laboratory, Department of Pharmacology, Seoul National University College of Medicine, Seoul 03080, Korea.,Department of Biomedical Science, Seoul National University Graduate School, Seoul 03080, Korea.,Ischemic/Hypoxic Disease Institute, Seoul National University College of Medicine, Seoul 03080, Korea.,Cancer Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea.,Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul 03080, Korea
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Kim J, Yoon DW, Lee SK, Lee S, Choi KM, Robert TJ, Shin C. Concurrent presence of inflammation and obstructive sleep apnea exacerbates the risk of metabolic syndrome: A KoGES 6-year follow-up study. Medicine (Baltimore) 2017; 96:e4488. [PMID: 28207497 PMCID: PMC5319486 DOI: 10.1097/md.0000000000004488] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Obstructive sleep apnea (OSA) leads to multiple end-organ morbidities that are mediated by the cumulative burden of oxidative stress and inflammation. Both OSA and inflammation play key roles in increased risk of cardiovascular disease (CVD). Thus, we hypothesized that the combination of inflammation and OSA could accelerate the development of metabolic syndrome (MetS) in a large cohort study.A total of 1835 participants were randomly selected from the ongoing Korean Genome and Epidemiology Study for the years between 2007 and 2015. Overnight polysomnography was performed on each participant. Blood was drawn for biochemical analyses. Participants with high or low inflammation were divided by high-sensitivity C-reactive protein (hsCRP). MetS was defined using the criteria of the modified National Cholesterol Education Program, Adult Treatment Panel III.The prevalence of MetS was higher among the subjects with OSA and high hsCRP levels than among the other corresponding groups. The incidence of MetS among the 4 groups stratified by OSA and inflammation status at the 6-year follow-up was 11.8%, 19.9%, 25.8%, and 36.0% (HsCRP[-]/OSA[-] vs HsCRP[+]/OSA[-] vs HsCRP[-]/OSA[+] vs HsCRP[+]/OSA[+], P < 0.01). After adjusting for age, sex, smoking, alcohol status, BMI, and change in BMI (ΔBMI) in a multiple logistic regression, the subjects with OSA and high hsCRP levels at follow-up had a 2.22-fold risk of developing MetS, as compared with those with no-OSA and low hsCRP levels (P < 0.01).MetS is more prevalent in the concurrent presence of inflammation and OSA. The combination of these conditions is associated with higher risk of MetS. Additional research is needed to help further define the significance of the combined effect of OSA and subclinical inflammation on the development of MetS in the context of reduction of CVD risk.
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Affiliation(s)
- Jinkwan Kim
- Department of Biomedical Laboratory Science, College of Health Science, Jungwon University, Geo-San
| | - Dae Wui Yoon
- Institute of Human Genomic Study, Korea University Ansan Hospital, Korea University, Ansan
| | - Seung Ku Lee
- Institute of Human Genomic Study, Korea University Ansan Hospital, Korea University, Ansan
| | - Seunggwan Lee
- Department of Health and Integrative Science, College of Health Science, Korea University, Seoul, Republic of Korea
| | - Kyung-Mee Choi
- Institute of Human Genomic Study, Korea University Ansan Hospital, Korea University, Ansan
| | - Thomas J. Robert
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA
| | - Chol Shin
- Institute of Human Genomic Study, Korea University Ansan Hospital, Korea University, Ansan
- Department of Pulmonary Sleep and Critical Care Medicine Disorder Center, College of Medicine, Korea University, Ansan, Republic of Korea
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Lee SK, Yoon DW, Lee S, Kim J, Choi KM, Shin C. The association between irritable bowel syndrome and the coexistence of depression and insomnia. J Psychosom Res 2017; 93:1-5. [PMID: 28107884 DOI: 10.1016/j.jpsychores.2016.12.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Revised: 12/05/2016] [Accepted: 12/07/2016] [Indexed: 12/14/2022]
Abstract
OBJECTIVE The individual occurrence of depression or insomnia is a risk factor for irritable bowel syndrome (IBS), but few researchers have evaluated the association between comorbid depression and insomnia and IBS. The aim of the present study is to explore the relationship between IBS and the coexistence of depression and insomnia in a Korean population-based cohort study. METHODS A total of 3429 individuals who were enrolled in the Korean Genome and Epidemiology Study were analysed. Of the participants, 10.9% (n=374) were diagnosed with IBS based on the Rome II criteria. Regarding depressive symptoms, subjects were sub-divided into three groups based on the Beck Depression Inventory (BDI) score. Insomnia was defined as a positive response to at least one of three questions on sleep states. RESULTS The odds ratio (OR) of IBS increased proportionally as depressive symptoms worsened (OR: 1.64; 95% CI: 1.21-2.23 in middle tertile and OR: 2.61; 95% CI: 1.92-3.55 in highest tertile). Subjects with insomnia showed a higher OR of IBS than those without insomnia (OR: 1.81; 95% CI: 1.44-2.27). In the joint analysis of BDI and insomnia, the odds for IBS were significantly higher in all BDI tertiles with insomnia than in the corresponding BDI tertiles without insomnia. There was no significant interaction effect of BDI tertile and insomnia on IBS. CONCLUSION The presence of both depression and insomnia is significantly associated with IBS compared to each individual occurrence. Further prospective investigations are needed to explore possible causality between comorbid depression and insomnia and IBS.
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Affiliation(s)
- Seung Ku Lee
- Institute of Human Genomic Study, College of Medicine, Korea University Ansan Hospital, Ansan, Republic of Korea
| | - Dae Wui Yoon
- Institute of Human Genomic Study, College of Medicine, Korea University Ansan Hospital, Ansan, Republic of Korea
| | - Sunghee Lee
- Institute of Human Genomic Study, College of Medicine, Korea University Ansan Hospital, Ansan, Republic of Korea
| | - Jinkwan Kim
- Department of Biomedical Laboratory Science, College of Health Science, Jungwon University, Chung-Buk, Republic of Korea
| | - Kyung-Mee Choi
- Institute of Human Genomic Study, College of Medicine, Korea University Ansan Hospital, Ansan, Republic of Korea; Korea Health Promotion Foundation, 24th FL Namsam Square Bldg, Seoul 04554, Korea
| | - Chol Shin
- Institute of Human Genomic Study, College of Medicine, Korea University Ansan Hospital, Ansan, Republic of Korea; Department of Pulmonary, Sleep and Critical Care Medicine, College of Medicine, Korea University Ansan Hospital, Ansan, Republic of Korea.
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Lee SK, Yoon DW, Lee SH, Choi KM, Lee SW, Kim JY, Kim JK, Lee SH, Shin C. Assessment of pulmonary function among sasang constitutional types: A population-based study in Korea. Eur J Integr Med 2016. [DOI: 10.1016/j.eujim.2016.05.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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21
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Kim J, Lee SJ, Choi KM, Lee SK, Yoon DW, Lee SG, Shin C. Obstructive Sleep Apnea Is Associated with Elevated High Sensitivity C-Reactive Protein Levels Independent of Obesity: Korean Genome and Epidemiology Study. PLoS One 2016; 11:e0163017. [PMID: 27684378 PMCID: PMC5042376 DOI: 10.1371/journal.pone.0163017] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Accepted: 09/01/2016] [Indexed: 01/06/2023] Open
Abstract
Obstructive sleep apnea syndrome (OSA) has been recognized as a common health problem, and increasing obesity rates have led to further remarkable increases in the prevalence of OSA, along with more prominent cardiovascular morbidities. Though previous studies have reported an independent relationship between elevated high sensitivity C-reactive protein (hsCRP) levels and OSA, the issue remains controversial owing to inadequate consideration of obesity and various confounding factors. So far, few population based studies of association between OSA and hsCRP levels have been published. Therefore, the purpose of the present study was to investigate whether OSA is associated with increased hsCRP levels independent of obesity in a large population-based study. A total of 1,835 subjects (968 men and 867 women) were selected from a larger cohort of the ongoing Korean Genome and Epidemiology Study (KoGES). Overnight polysomnography was performed on each participant. All participants underwent anthropometric measurements and biochemical analyses, including analysis of lipid profiles and hsCRP levels. Based on anthropometric data, body mass index (BMI) and waist hip ratio (WHR) were calculated and fat mass (FM) were measured by means of multi-frequency bioelectrical impedance analysis (BIA). Mild OSA and moderate to severe OSA were defined by an AHI >5 and ≥15, respectively. The population was sub-divided into 3 groups based on the tertile cut-points for the distribution of hsCRP levels. The percentage of participants in the highest tertile of hsCRP increased dose-dependently according to the severity of OSA. After adjustment for potential confounders and obesity-related variables (BMI, WHR, and body fat) in a multiple logistic model, participants with moderate to severe OSA had 1.73-, 2.01-, and 1.61-fold greater risks of being in the highest tertile of hsCRP levels than participants with non-OSA, respectively. Interaction between obesity (BMI ≥25kg/m2) and the presence of moderate-to-severe OSA was significant on the middle tertile levels of hsCRP (OR = 2.4), but not on the highest tertile, compared to the lowest tertile. OSA is independently associated with elevated hsCRP levels and may reflect an increased risk for cardiovascular morbidity. However, we found that OSA and obesity interactively contribute to individuals with general levels of hsCRP (<1.01 mg/dl). The short-term and long-term effects of elevated hsCRP levels on cardiovascular risk in the context of OSA remain to be defined in future studies.
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Affiliation(s)
- Jinkwan Kim
- Department of Biomedical Laboratory Science, College of Health Science, Jungwon University, Chung-Buk, Republic of Korea
| | - Seok Jun Lee
- Department of Biomedical Laboratory Science, College of Health Science, Cheong-Ju University, Chung-Buk, Republic of Korea
| | - Kyung-Mee Choi
- Institute of Human Genomic Study, Korea University Ansan Hospital, Korea University, Ansan, Republic of Korea
| | - Seung Ku Lee
- Institute of Human Genomic Study, Korea University Ansan Hospital, Korea University, Ansan, Republic of Korea
| | - Dae Wui Yoon
- Institute of Human Genomic Study, Korea University Ansan Hospital, Korea University, Ansan, Republic of Korea
| | - Seung Gwan Lee
- Department of Health and Integrative Science, College of Health Science, Korea University, Seoul, Republic of Korea
| | - Chol Shin
- Institute of Human Genomic Study, Korea University Ansan Hospital, Korea University, Ansan, Republic of Korea
- Department of Pulmonary Sleep and Critical Care Medicine Disorder Center, College of Medicine, Korea University, Ansan, Republic of Korea
- * E-mail:
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Lee SK, Yoon DW, Lee SW, Kim JY, Kim JK, Cho NH, Shin C. Association of Sasang Constitutional Types with Incident Hypertension: A 12-Year Follow-Up Study. J Altern Complement Med 2016; 22:706-12. [PMID: 27454325 DOI: 10.1089/acm.2015.0052] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVES Sasang constitutional types (SCTs) are four distinct classifications of people based on physiologic and physical characteristics. The different types have been reported to have different disease susceptibility, but there are no studies reporting the association of SCT and hypertension (HTN) over a long-term follow-up period. This study prospectively investigated the association between SCT and incidence of HTN. DESIGN This was a prospective study in a population-based cohort study in Korea. SUBJECTS Data from two independent population-based cohorts that are embedded within the Korean Genome and Epidemiology Study were used. A total of 2083 subjects who were free of HTN at baseline were selected for the analysis. OUTCOME MEASURES HTN was diagnosed as systolic blood pressure (BP) ≥140 mmHg and diastolic BP ≥90 mmHg, use of antihypertensive medication, or diagnosis by doctor. The SCTs were classified using an integrated diagnostic method that included facial features, body shape, voice, and questionnaire responses. The association between the SCT and the incidence of HTN was investigated by Cox proportional hazard regression analysis and calculation of estimated survival functions. RESULTS The Tae-eum (TE) type showed a significantly increased risk for HTN (hazard ratio [HR] = 1.55, 95% confidence interval [CI] 1.15-2.10; p = 0.005), even after adjusting for all possible confounders. In a stratified analysis by body mass index (BMI) conducted only in the TE type, even those in the TE type with normal BMI had a significantly higher risk for HTN (HR = 1.47, 95% CI 1.07-2.03; p = 0.016). Furthermore, survival analysis showed that the TE type had a higher rate of developing HTN than the So-eum and So-yang types had, regardless of obesity status. CONCLUSIONS These results show that the TE type is an independent risk factor for HTN. Thus, early prevention and treatment for HTN in this type are needed.
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Affiliation(s)
- Seung Ku Lee
- 1 Institute of Human Genomic Study, College of Medicine, Korea University Ansan Hospital , Danwon-gu, Republic of Korea
| | - Dae Wui Yoon
- 1 Institute of Human Genomic Study, College of Medicine, Korea University Ansan Hospital , Danwon-gu, Republic of Korea
| | - Si Woo Lee
- 2 Constitutional Medicine and Diagnosis Research Group, Korea Institute of Oriental Medicine , Yuseong-gu, Republic of Korea
| | - Jong Yeol Kim
- 3 Medical Research Division, Korea Institute of Oriental Medicine , Yuseong-gu, Republic of Korea
| | - Jin Kwan Kim
- 4 Department of Biomedical Laboratory Science, Jungwon University , Goesan-eup, Republic of Korea
| | - Nam Han Cho
- 5 Department of Preventive Medicine, Ajou University School of Medicine , Youngtong Gu, Republic of Korea
| | - Chol Shin
- 1 Institute of Human Genomic Study, College of Medicine, Korea University Ansan Hospital , Danwon-gu, Republic of Korea.,6 Department of Pulmonary, Sleep and Critical Care Medicine, College of Medicine, Korea University Ansan Hospital , Danwon-gu, Republic of Korea
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Lee SK, Yoon DW, Choi KM, Lee SW, Kim JY, Kim JK, Hong JH, Cho NH, Shin C. The association of Sasang constitutional types with metabolic syndrome: A pooled analysis of data from three cohorts. Eur J Integr Med 2016. [DOI: 10.1016/j.eujim.2015.11.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Shin C, Yun CH, Yoon DW, Baik I. Association between Snoring and Leukocyte Telomere Length. Sleep 2016; 39:767-72. [PMID: 26715224 DOI: 10.5665/sleep.5624] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Accepted: 11/21/2015] [Indexed: 12/17/2022] Open
Abstract
STUDY OBJECTIVES Data on the association between snoring and telomere length, an indicator of biological aging, are very limited. Moreover, no polysomnography (PSG) studies on this association in a general population have been conducted. Our study aimed to evaluate the association between snoring and leukocyte telomere length (LTL) using PSG and a questionnaire. METHODS A cross-sectional PSG study embedded in a population-based cohort from the Korean Genome Epidemiology Study was conducted in 2010-2013. During the same period, questionnaire-based interviews, blood collection, and relative LTL assays were conducted. A total of 887 Korean men and women aged 50-79 y with an apnea-hypopnea index (AHI) < 15 determined in the PSG study were included in the study. RESULTS We observed that the percentage of time spent snoring during sleep (% time spent snoring) assessed by PSG was inversely associated with LTL even after adjusting for potential risk factors and AHI. In the linear regression association between tertiles of percentage of time spent snoring and log-transformed LTL, coefficient estimates (P value) were -0.076 (< 0.05) for the second tertile and -0.084 (< 0.01) for the third tertile compared with the bottom tertile. When LTL was compared according to snoring status determined using PSG and questionnaire information, both primary snorers and those with mild sleep apnea (5 ≤ AHI < 15) had shorter LTL than nonsnorers. CONCLUSIONS Our findings suggest that snoring may influence telomere attrition independent of sleep apnea.
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Affiliation(s)
- Chol Shin
- Department of Internal Medicine, Korea University Ansan Hospital, Ansan.,Institute of Human Genomic Study, Korea University Ansan Hospital, Ansan
| | - Chang-Ho Yun
- Department of Neurology and Bundang Clinical Neuroscience Institute, Seoul National University Bundang Hospital, Seongnam
| | - Dae Wui Yoon
- Department of Pharmacology, Seoul National University College of Medicine, Seoul
| | - Inkyung Baik
- Department of Foods and Nutrition, College of Natural Sciences, Kookmin University, Seoul, Republic of Korea
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Lee SK, Yoon DW, Lee SW, Kim JY, Kim JK, Shin C. Non-alcoholic fatty liver disease among sasang constitutional types: a population-based study in Korea. Altern Ther Health Med 2015; 15:399. [PMID: 26547840 PMCID: PMC4637136 DOI: 10.1186/s12906-015-0925-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Accepted: 11/02/2015] [Indexed: 12/14/2022]
Abstract
Background Non-alcoholic fatty liver disease (NAFLD) is the most common cause of chronic liver disease and is highly prevalent in populations with metabolic conditions such as obesity and type II diabetes. Specific types of Sasang constitution can act as a risk factor for metabolic diseases, but there are no studies addressing the association between the Sasang constitutional types (SCTs) and NAFLD. Methods A total of 1184 individuals (508 males, 676 females) that enrolled in the Korean Genome and Epidemiology Study were included in the present study. Classification of SCTs was done with an integrated diagnostic model. NAFLD was diagnosed when the liver attenuation index (LAI) value was <5 Hounsfield units using computed tomography. Relationships between the SCTs and NAFLD were analyzed using multiple logistic regressions. Results The average LAI was 13.3 ± 6.0 in the So-eum (SE) type, 12.3 ± 7.0 in the So-yang (SY) type, and 6.5 ± 9.9 in the Tae-eum (TE) type. Prevalence of NAFLD was 4.7 % in the SE type, 14.0 % in the SY type, and 34 % in the TE type. Even after adjusting for possible confounders, the SY and TE types continued to show a 3.90-fold (95 % CI, 1.60-9.51; P = 0.0028) and 3.36-fold (95 % CI, 1.42-7.92; P = 0.0057) increase in chance of having NAFLD, respectively, compared with the SE type. In the additional analysis including only non-obese subjects, the odds ratio of NAFLD was 3.27 (95 % CI, 1.29-8.29; P = 0.0126) in the SY type and 3.53 (95 % CI, 1.30-9.58; P = 0.0134) in the TE type compared with SE type. In the multivariate analysis to determine which parameter had an independent association with NAFLD, higher body mass index, alanine aminotransferase (ALT), triglyceride (TG), and low high-density lipoprotein cholesterol were independently associated with developing NAFLD in the SY type. In contrast, male sex, alcohol consumption, higher ALT, TG, and fasting glucose were risk factors for NAFLD in the TE type. Conclusions These results indicated that the SY and TE types are independent risk factors for NAFLD.
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Jeon YJ, Yoon DW, Han DH, Won TB, Kim DY, Shin HW. Low Quality of Life and Depressive Symptoms as an Independent Risk Factor for Erectile Dysfunction in Patients with Obstructive Sleep Apnea. J Sex Med 2015; 12:2168-77. [PMID: 26477542 DOI: 10.1111/jsm.13021] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Accumulating evidence indicates that obstructive sleep apnea (OSA) is associated with a high prevalence of erectile dysfunction (ED), but the factors that predict the risk of ED in OSA patients have yet to be defined clearly. AIMS The aims of the present study were to investigate the clinical characteristics of OSA patients with ED and to identify plausible predictors of ED. METHODS The present cross-sectional analysis included 713 male patients who visited Seoul National University Hospital for snoring and/or daytime sleepiness from 2006 to 2014. An in-laboratory polysomnography procedure was conducted to obtain objective recordings of OSA and other sleep parameters. MAIN OUTCOME MEASURES The demographic data of all patients were obtained, and each patient completed all requirements of the following questionnaires: the Calgary Sleep Apnea Quality of Life Index (SAQLI), the Korean version of the International Index of Erectile Function (KIIEF-5), the Beck Depression Inventory (BDI), and the Epworth Sleepiness Scale (ESS). ED and OSA were defined as a KIIEF-5 < 21 and a respiratory disturbance index (RDI) ≥ 5, respectively. Depressive symptoms were defined as a BDI ≥ 10. RESULTS The frequency of ED did not differ significantly according to OSA severity. In Spearman's correlation analysis, the BDI and the ESS were inversely correlated with the KIIEF-5, whereas the SAQLI was positively correlated with the KIIEF-5. The RDI and the lowest oxygen saturation (SaO2 ) did not exhibit significant correlations with the KIIEF-5. A multivariate logistic regression analysis adjusted for possible confounding factors showed that ED was independently associated with the SAQLI and depressive symptoms, but there was no significant association of ED with either the RDI or the lowest SaO2 . CONCLUSIONS The present study demonstrated that depressive symptoms and a low quality of life specific to sleep apnea are independent risk factors for ED in OSA patients.
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Affiliation(s)
- Yung Jin Jeon
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul, Korea
| | - Dae Wui Yoon
- Obstructive Upper airway Research (OUaR) Laboratory, Department of Pharmacology, Seoul National University College of Medicine, Seoul, Korea
| | - Doo Hee Han
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul, Korea
| | - Tae-Bin Won
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul, Korea
| | - Dong-Young Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul, Korea
| | - Hyun-Woo Shin
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul, Korea.,Obstructive Upper airway Research (OUaR) Laboratory, Department of Pharmacology, Seoul National University College of Medicine, Seoul, Korea.,Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, Korea
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Lee SK, Yoon DW, Kim KS, Ryu HJ, Bae HS, Park HM, Kim JY, Shin C. So-Eum Type as an Independent Risk Factor for Irritable Bowel Syndrome: A Population-Based Study in Korea. Integr Med Res 2015. [DOI: 10.1016/j.imr.2015.04.159] [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: 11/25/2022] Open
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Yoon DW, Lee SK, Shin C, Kim JY, Kim KS, Ryu HJ, Bae HS, Park HM. Total Nasal Resistance among Sasang Constitutional Types: A Population-Based Study in Korea. Integr Med Res 2015. [DOI: 10.1016/j.imr.2015.04.156] [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: 11/17/2022] Open
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Lee SK, Yoon DW, Yi H, Lee SW, Kim JY, Kim JK, Hong JH, Shin C. So-eum type as an independent risk factor for irritable bowel syndrome: a population-based study in Korea. J Altern Complement Med 2014; 20:846-52. [PMID: 25148474 DOI: 10.1089/acm.2014.0077] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVES It has been hypothesized that Sasang constitutional types (SCTs) have a specific hypoactive organ, which can account for vulnerability to related diseases or symptoms. This study examined the relationship between SCTs and irritable bowel syndrome (IBS). DESIGN Cross-sectional study in a population-based cohort study in Korea. PARTICIPANTS 1362 individuals (705 men and 657 women) who participated in the Korean Genome and Epidemiology Study. OUTCOME MEASURES The participants were classified into SCTs by the integrated diagnostic model and asked about symptoms related to IBS using the Rome II criteria. RESULTS The prevalence of IBS differed significantly among the SCTs, with 33 (18.3%) of the So-eum (SE) type, 74 (9.9%) of the Tae-eum (TE) type, and 57 (13.2%) of the So-yang (SY) type having IBS. Even after adjustment for possible confounders, the SE type for both sexes continued to show 1.82-fold (95% confidence interval [CI], 1.05-3.16) excess odds of having IBS. Men with SE type had a 2.97 times (95% CI, 1.34-6.58) and a 2.50 times (95% CI, 1.15-5.47) significantly higher odds of having IBS than the TE and SY types, respectively. In analysis for the joint effect of SCT and psychological stress, the multivariate odds ratio of IBS was 3.21 (95% CI, 1.33-7.75) for the SE type and Psychological Well-Being Index-Short Form (PWI-SF) score (<27), and 5.83 (95% CI, 1.80-18.88) for the SE type and PWI-SF (≥27) compared with the TE type and PWI-SF score (<27). CONCLUSIONS The SE type of SCT is an independent risk factor for IBS. The findings support the hypothesis that persons with SE type are vulnerable to gastrointestinal diseases.
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Affiliation(s)
- Seung Ku Lee
- 1 Institute of Human Genomic Study, College of Medicine, Korea University Ansan Hospital , Ansan, Republic of Korea
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Suh IB, Yoon DW, Oh WO, Lee EJ, Min KH, Hur GY, Lee SH, Lee SY, Lee SY, Shin C, Shim JJ, In KH, Kang KH, Kim JH. Effects of transglutaminase 2 inhibition on ventilator-induced lung injury. J Korean Med Sci 2014; 29:556-63. [PMID: 24753704 PMCID: PMC3991800 DOI: 10.3346/jkms.2014.29.4.556] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Accepted: 02/11/2014] [Indexed: 12/18/2022] Open
Abstract
This study was performed to examine the role of transglutaminase 2 (TG2) in ventilator-induced lung injury (VILI). C57BL/6 mice were divided into six experimental groups: 1) control group; 2) lipopolysaccharide (LPS) group; 3) lung protective ventilation (LPV) group; 4) VILI group; 5) VILI with cystamine, a TG2 inhibitor, pretreatment (Cyst+VILI) group; and 6) LPV with cystamine pretreatment (Cyst+LPV) group. Acute lung injury (ALI) score, TG2 activity and gene expression, inflammatory cytokines, and nuclear factor-κB (NF-κB) activity were measured. TG2 activity and gene expression were significantly increased in the VILI group (P < 0.05). Cystamine pretreatment significantly decreased TG2 activity and gene expression in the Cyst+VILI group (P < 0.05). Inflammatory cytokines were higher in the VILI group than in the LPS and LPV groups (P < 0.05), and significantly lower in the Cyst+VILI group than the VILI group (P < 0.05). NF-κB activity was increased in the VILI group compared with the LPS and LPV groups (P < 0.05), and significantly decreased in the Cyst+VILI group compared to the VILI group (P = 0.029). The ALI score of the Cyst+VILI group was lower than the VILI group, but the difference was not statistically significant (P = 0.105). These results suggest potential roles of TG2 in the pathogenesis of VILI.
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Affiliation(s)
- In Bum Suh
- Department of Laboratory Medicine, College of Medicine, Kangwon National University, Chuncheon, Korea
| | - Dae Wui Yoon
- Division of Pulmonary, Sleep and Critical Care Medicine, Department of Internal Medicine, Korea University Ansan Hospital, Ansan, Korea
| | - Won-Oak Oh
- College of Nursing, Korea University, Seoul, Korea
| | - Eun Joo Lee
- Division of Respiratory and Critical Care Medicine, Department of Internal Medicine, Korea University Anam Hospital, Seoul, Korea
| | - Kyung Hoon Min
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Korea University Guro Hospital, Seoul, Korea
| | - Gyu Young Hur
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Korea University Guro Hospital, Seoul, Korea
| | - Seung Heon Lee
- Division of Pulmonary, Sleep and Critical Care Medicine, Department of Internal Medicine, Korea University Ansan Hospital, Ansan, Korea
| | - Sung Yong Lee
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Korea University Guro Hospital, Seoul, Korea
| | - Sang Yeub Lee
- Division of Respiratory and Critical Care Medicine, Department of Internal Medicine, Korea University Anam Hospital, Seoul, Korea
| | - Chol Shin
- Division of Pulmonary, Sleep and Critical Care Medicine, Department of Internal Medicine, Korea University Ansan Hospital, Ansan, Korea
| | - Jae Jeong Shim
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Korea University Guro Hospital, Seoul, Korea
| | - Kwang Ho In
- Division of Respiratory and Critical Care Medicine, Department of Internal Medicine, Korea University Anam Hospital, Seoul, Korea
| | - Kyung Ho Kang
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Korea University Guro Hospital, Seoul, Korea
| | - Je Hyeong Kim
- Division of Pulmonary, Sleep and Critical Care Medicine, Department of Internal Medicine, Korea University Ansan Hospital, Ansan, Korea
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Park DS, Yoon DW, Yoo WB, Lee SK, Yun CH, Kim SJ, Kim JK, Shin C. Sleep fragmentation induces reduction of synapsin II in rat hippocampus. Sleep Biol Rhythms 2014. [DOI: 10.1111/sbr.12052] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
| | - Dae Wui Yoon
- Institute of Human Genomic Study; College of Medicine; Korea University Ansan Hospital; Ansan Korea
| | - Won Baek Yoo
- Department of Endocrinology; Korea University Ansan Hospital; Ansan Korea
| | - Seung Ku Lee
- Institute of Human Genomic Study; College of Medicine; Korea University Ansan Hospital; Ansan Korea
| | - Chang-Ho Yun
- Department of Neurology; Seoul National University Bundang Hospital; Seongnam Korea
| | - Se Joong Kim
- Division of Pulmonary and Critical Care Medicine; Department of Internal Medicine; Seoul National University Bundang Hospital; Seongnam Korea
| | - Jin Kwan Kim
- Department of Biomedical Laboratory Science; Jungwon University; Chungbuk Korea
| | - Chol Shin
- Institute of Human Genomic Study; College of Medicine; Korea University Ansan Hospital; Ansan Korea
- Division of Pulmonary; Sleep and Critical Care Medicine; Department of Internal Medicine; College of Medicine; Korea University Ansan Hospital; Ansan Korea
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Yoon DW, Lee SK, Kim JK, Yun CH, Lee SH, Shin C. A Case of Hypertensive Intracerebral Hemorrhage Accompanying Sleep Apnea. Sleep Med Res 2013. [DOI: 10.17241/smr.2013.4.2.56] [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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Kim NH, Cho NH, Yun CH, Lee SK, Yoon DW, Cho HJ, Ahn JH, Seo JA, Kim SG, Choi KM, Baik SH, Choi DS, Shin C. Association of obstructive sleep apnea and glucose metabolism in subjects with or without obesity. Diabetes Care 2013; 36:3909-15. [PMID: 24101695 PMCID: PMC3836097 DOI: 10.2337/dc13-0375] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE The purpose of this study was to investigate whether the impact of obstructive sleep apnea (OSA) on glucose metabolism was different according to the presence or absence of obesity. RESEARCH DESIGN AND METHODS A total of 1,344 subjects >40 years old from the Korean Genome and Epidemiology Study were included. OSA was detected by home portable sleep monitoring. Plasma glucose, HbA1c, and insulin resistance were compared according to OSA and obesity status. The associations between OSA and impaired fasting glucose (IFG), impaired glucose tolerance (IGT), IFG + IGT, and diabetes were evaluated in subjects with and without obesity after adjusting for several confounding variables. The effect of visceral obesity on this association was evaluated in 820 subjects who underwent abdominal computed tomography scanning. RESULTS In subjects without obesity, fasting glucose, 2-h glucose after 75-g glucose loading, and HbA1c were higher in those with OSA than in those without after controlling for age, sex, and BMI. In addition, the presence of OSA in nonobese subjects was associated with a higher prevalence of IFG + IGT and diabetes after adjusting for several confounding variables (odds ratio 3.15 [95% CI 1.44-6.90] and 2.24 [1.43-3.50] for IFG + IGT and diabetes, respectively). Further adjustment for visceral fat area did not modify this association. In contrast, in those with obesity, none of the abnormal glucose tolerance categories were associated with OSA. CONCLUSIONS The presence of OSA in nonobese individuals is significantly associated with impaired glucose metabolism, which can be responsible for future risk for diabetes and cardiovascular disease.
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Yoon DW, Lee SK, Yi H, Hong JH, Soichiro M, Lee SW, Kim JY, Shin C. Total nasal resistance among Sasang constitutional types: a population-based study in Korea. BMC Complement Altern Med 2013; 13:302. [PMID: 24180585 PMCID: PMC4228428 DOI: 10.1186/1472-6882-13-302] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2013] [Accepted: 10/30/2013] [Indexed: 11/11/2022]
Abstract
Background There have been many attempts to find an objective phenotype by Sasang constitutional types (SCTs) on an anatomical, physiological, and psychological basis, but there has been no research on total nasal resistance (TNR) among SCTs. Methods We assessed the value of the TNR in the SCTs classified by an integrated diagnostic model. Included in the study were 1,346 individuals (701 males, 645 females) who participated in the Korean Genome and Epidemiology Study (KoGES). The TNR was measured by active anterior rhinomanometry (AAR) at transnasal pressures of 100 and 150 Pascal (Pa). Results The average TNR was 0.186 ± 0.004 Pa/cm3/second at 100 Pa in the Tae-eum (TE), 0.193 ± 0.007 in the So-eum (SE), and 0.208 ± 0.005 in the So-yang (SY) types. Under condition of 150 Pa the TE type had a TNR value of 0.217 ± 0.004, the SE type was 0.230 ± 0.008, and the SY type was 0.243 ± 0.005. Higher values of TNR were more likely to be reported in the SY type at 100 Pa and 150 Pa. In the stratified analysis by sex, the SY type in males and females tended to have higher TNR value than the TE and SE types at transnasal pressure of both 100 Pa and 150 Pa. Conclusions These results provide new approaches to understand the functional characteristics among the SCTs in terms of nasal physiology. Further studies are required to clarify contributing factors for such a difference.
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Yoon DW, Lee SK, Kim JK, Yun CH, Shin C. A Case of Frequent Arousal Following Nocturnal Dyspnea Caused by Gastroesophageal Reflux Disease. Sleep Med Res 2013. [DOI: 10.17241/smr.2013.4.1.33] [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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Kim H, Yun CH, Thomas RJ, Lee SH, Seo HS, Cho ER, Lee SK, Yoon DW, Suh S, Shin C. Obstructive sleep apnea as a risk factor for cerebral white matter change in a middle-aged and older general population. Sleep 2013; 36:709-715B. [PMID: 23633753 PMCID: PMC3624825 DOI: 10.5665/sleep.2632] [Citation(s) in RCA: 125] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
STUDY OBJECTIVE Obstructive sleep apnea (OSA) contributes to the development of systemic hypertension, and hypertension strongly predicts the development of white matter change (WMC). Thus, it is plausible that OSA mediates WMC. The goal of the current study is to determine whether a contextual relationship exists between OSA and cerebral WMC. DESIGN Cross-sectional analyses conducted in a population-based study. SETTING Korean community-based sample from the Korean Genome and Epidemiology Study (KoGES) who attended examinations in 2011 at a medical center. PARTICIPANTS There were 503 individuals (mean ± SD, age 59.63 ± 7.48 y) who were free of previously diagnosed cardiovascular and neurologic diseases. MEASUREMENTS AND RESULTS Participants underwent 1-night polysomnography and were classified as no OSA (obstructive apnea-hypopnea index [AHI] < 5, n = 289), mild OSA (AHI 5-15, n = 161), and moderate to severe OSA (AHI ≥ 15, n = 53). WMC was identified with brain magnetic resonance imaging (MRI) and was found in 199 individuals (39.56%). Multivariate logistic regression analyses adjusted for covariates revealed that moderate to severe OSA was significantly associated with the presence of WMC (odds ratio [OR] 2.08, 95%, confidence interval [CI] 1.05-4.13) compared with no OSA. Additional adjustment of hypertension to the model did not alter the significance of the association (OR 2.03, 95% CI 1.02-4.05). CONCLUSIONS Moderate to severe OSA is an independent risk factor for WMC in middle-aged and older individuals. Thus, early recognition and treatment of OSA could reduce the risk of stroke and vascular dementia.
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Affiliation(s)
- Hyun Kim
- Institute of Human Genomic Study, School of Medicine, Korea University Ansan Hospital, Ansan, Republic of Korea
- Brain Korea 21 Program in Biomedical Science, School of Medicine, Korea University, Anam, Republic of Korea
| | - Chang-Ho Yun
- Department of Neurology, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Robert Joseph Thomas
- Division of Pulmonary, Critical Care and Sleep Medicine, Beth Israel Deaconess Medical Center, Boston, MA
| | - Seung Hoon Lee
- Department of Otorhinolaryngology-Head and Neck Surgery, School of Medicine, Korea University Ansan Hospital, Ansan, Republic of Korea
| | - Hyung Suk Seo
- Department of Radiology, School of Medicine, Korea University Ansan Hospital, Ansan, Republic of Korea
| | - Eo Rin Cho
- Institute of Human Genomic Study, School of Medicine, Korea University Ansan Hospital, Ansan, Republic of Korea
| | - Seung Ku Lee
- Institute of Human Genomic Study, School of Medicine, Korea University Ansan Hospital, Ansan, Republic of Korea
| | - Dae Wui Yoon
- Institute of Human Genomic Study, School of Medicine, Korea University Ansan Hospital, Ansan, Republic of Korea
- Brain Korea 21 Program in Biomedical Science, School of Medicine, Korea University, Anam, Republic of Korea
| | - Sooyeon Suh
- Institute of Human Genomic Study, School of Medicine, Korea University Ansan Hospital, Ansan, Republic of Korea
- Stanford University, Department of Psychiatry
| | - Chol Shin
- Institute of Human Genomic Study, School of Medicine, Korea University Ansan Hospital, Ansan, Republic of Korea
- Brain Korea 21 Program in Biomedical Science, School of Medicine, Korea University, Anam, Republic of Korea
- Division of Pulmonary, Sleep and Critical Care Medicine, Department of Internal Medicine, Korea University Ansan Hospital, Ansan, Republic of Korea
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Kim SJ, Yoon DW, Lee EJ, Hur GY, Jung KH, Lee SY, Lee SY, Shin C, Shim JJ, In KH, Kang KH, Yoo SH, Kim JH. Carotid atherosclerosis in patients with untreated chronic obstructive pulmonary disease. Int J Tuberc Lung Dis 2012; 15:1265-70, i. [PMID: 21943856 DOI: 10.5588/ijtld.10.0680] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Chronic obstructive pulmonary disease (COPD) is associated with systemic inflammation. OBJECTIVE To evaluate carotid artery intima-media thickness (IMT), high sensitivity C-reactive protein (hsCRP) and their correlation in newly diagnosed untreated patients with COPD. DESIGN Post-bronchodilator spirometry, carotid artery IMT and blood tests were measured in patients with COPD (COPD group). Age, sex, body mass index, smoking status and smoking amount were compared with matched healthy subjects (non-COPD group). Participants taking medications and/or with a history of hypertension, diabetes mellitus, dyslipidaemia, COPD or cardiovascular disease were excluded. RESULTS A total of 126 patients (COPD group 42, non-COPD group 84) were enrolled. The IMT and hsCRP of the COPD group were significantly higher than in the non-COPD group (P < 0.05). The decrease in the forced expiratory volume in 1 second/forced vital capacity (FEV(1)/FVC) ratio and FEV(1) was significantly correlated with an increase in the hsCRP and IMT (P < 0.05); there was no correlation between the IMT and hsCRP (P = 0.152). CONCLUSION In newly diagnosed untreated patients with COPD, the carotid artery IMT and hsCRP were significantly higher than in healthy subjects. These findings suggest that systemic inflammation may play a potential role in preclinical atherosclerosis in COPD.
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Affiliation(s)
- S J Kim
- Division of Pulmonary, Sleep and Critical Care Medicine, Department of Internal Medicine, Korea University Ansan Hospital, Ansan, Republic of Korea
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Kim JH, Yoon DW, Kim SJ, Suh IB, Lee EJ, Hur GY, Lee SY, Lee SY, Shin C, Shim JJ, In KH, Kang KH, Yoo SH. The Role of Transglutaminase-2 in Ventilator-Associated Lung Injury. Chest 2011. [DOI: 10.1378/chest.1118726] [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: 11/01/2022] Open
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Yoon DW, Cho SM, Kim SJ, Kim JH, Kim DS, Lee SH, Yun CH, Shin C. Effects of <italic>Cynanchum Wilfordii</italic> Hemsley Extract on the Sleep-Wake Architectures in Rats. Sleep Med Res 2011. [DOI: 10.17241/smr.2011.2.1.16] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [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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Yoon DW, Lim HE, Lee SG, Kim SJ, Kim JH, Lee SH, Yun CH, Shin C. Effects of Sleep Disturbance on the Inducibility of Atrial Fibrillation in Rats. Sleep Med Res 2011. [DOI: 10.17241/smr.2011.2.1.27] [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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Baik I, Kim J, Jung K, Yoon DW, Kim J, Kim S, Lee S, Shim J, In K, Kang K, Yoo S, Lee SH, Shin C. A Polysomnography Study of Snoring and Obstructive Sleep Apnea in Relation to Chronic Bronchitis. Sleep Med Res 2010. [DOI: 10.17241/smr.2010.1.1.8] [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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Kim JH, Yoon DW, Jung KH, Kim HO, Ha ES, Lee KJ, Hur GY, Lee SY, Lee SY, Shin C, Shim JJ, In KH, Yoo SH, Kang KH. The Effects of Nuclear Factor-κB Decoy Oligodeoxynucleotide on Lipopolysaccharide-Induced Direct Acute Lung Injury. Tuberc Respir Dis (Seoul) 2009. [DOI: 10.4046/trd.2009.67.2.95] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Affiliation(s)
- Je Hyeong Kim
- Division of Pulmonary, Sleep and Critical Care Medicine, Department of Internal Medicine, Korea University Ansan Hospital, Ansan, Korea
| | - Dae Wui Yoon
- Division of Pulmonary, Sleep and Critical Care Medicine, Department of Internal Medicine, Korea University Ansan Hospital, Ansan, Korea
| | - Ki Hwan Jung
- Division of Pulmonary, Sleep and Critical Care Medicine, Department of Internal Medicine, Korea University Ansan Hospital, Ansan, Korea
| | - Hye Ok Kim
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Korea University Guro Hospital, Seoul, Korea
| | - Eun Sil Ha
- Division of Respiratory and Critical Care Medicine, Department of Internal Medicine, Korea University Anam Hospital, Seoul, Korea
| | - Kyoung Ju Lee
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Korea University Guro Hospital, Seoul, Korea
| | - Gyu Young Hur
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Korea University Guro Hospital, Seoul, Korea
| | - Sung Yong Lee
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Korea University Guro Hospital, Seoul, Korea
| | - Sang Yeub Lee
- Division of Respiratory and Critical Care Medicine, Department of Internal Medicine, Korea University Anam Hospital, Seoul, Korea
| | - Chol Shin
- Division of Pulmonary, Sleep and Critical Care Medicine, Department of Internal Medicine, Korea University Ansan Hospital, Ansan, Korea
| | - Jae Jeong Shim
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Korea University Guro Hospital, Seoul, Korea
| | - Kwang Ho In
- Division of Respiratory and Critical Care Medicine, Department of Internal Medicine, Korea University Anam Hospital, Seoul, Korea
| | - Se Hwa Yoo
- Division of Respiratory and Critical Care Medicine, Department of Internal Medicine, Korea University Anam Hospital, Seoul, Korea
| | - Kyung Ho Kang
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Korea University Guro Hospital, Seoul, Korea
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Kim JH, Suk MH, Yoon DW, Kim HY, Jung KH, Kang EH, Lee SY, Lee SY, Suh IB, Shin C, Shim JJ, In KH, Yoo SH, Kang KH. Inflammatory and transcriptional roles of poly (ADP-ribose) polymerase in ventilator-induced lung injury. Crit Care 2008; 12:R108. [PMID: 18718025 PMCID: PMC2575597 DOI: 10.1186/cc6995] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2008] [Revised: 07/14/2008] [Accepted: 08/22/2008] [Indexed: 02/01/2023]
Abstract
Introduction Poly (ADP-ribose) polymerase (PARP) participates in inflammation by cellular necrosis and the nuclear factor-kappa-B (NF-κB)-dependent transcription. The purpose of this study was to examine the roles of PARP in ventilator-induced lung injury (VILI) in normal mice lung. Methods Male C57BL/6 mice were divided into four groups: sham tracheostomized (sham), lung-protective ventilation (LPV), VILI, and VILI with PARP inhibitor PJ34 pretreatment (PJ34+VILI) groups. Mechanical ventilation (MV) settings were peak inspiratory pressure (PIP) 15 cm H2O + positive end-expiratory pressure (PEEP) 3 cm H2O + 90 breaths per minute for the LPV group and PIP 40 cm H2O + PEEP 0 cm H2O + 90 breaths per minute for the VILI and PJ34+VILI groups. After 2 hours of MV, acute lung injury (ALI) score, wet-to-dry (W/D) weight ratio, PARP activity, and dynamic compliance (CD) were recorded. Tumor necrosis factor-alpha (TNF-α), interleukin-6 (IL-6), myeloperoxidase (MPO) activity, and nitrite/nitrate (NOX) in the bronchoalveolar lavage fluid and NF-κB DNA-binding activity in tissue homogenates were measured. Results The VILI group showed higher ALI score, W/D weight ratio, MPO activity, NOX, and concentrations of TNF-α and IL-6 along with lower CD than the sham and LPV groups (P < 0.05). In the PJ34+VILI group, PJ34 pretreatment improved all histopathologic ALI, inflammatory profiles, and pulmonary dynamics (P < 0.05). NF-κB activity was increased in the VILI group as compared with the sham and LPV groups (P < 0.05) and was decreased in the PJ34+VILI group as compared with the VILI group (P = 0.009). Changes in all parameters were closely correlated with the PARP activity (P < 0.05). Conclusion Overactivation of PARP plays an important role in the inflammatory and transcriptional pathogenesis of VILI, and PARP inhibition has potentially beneficial effects on the prevention and treatment of VILI.
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Affiliation(s)
- Je Hyeong Kim
- Division of Pulmonary, Sleep and Critical Care Medicine, Department of Internal Medicine, Korea University Ansan Hospital, 516, Gojan 1-dong, Danwon-gu, Ansan 425-707, Republic of Korea
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Kim JH, Suk MH, Yoon DW, Lee SH, Hur GY, Jung KH, Jeong HC, Lee SY, Lee SY, Suh IB, Shin C, Shim JJ, In KH, Yoo SH, Kang KH. Inhibition of matrix metalloproteinase-9 prevents neutrophilic inflammation in ventilator-induced lung injury. Am J Physiol Lung Cell Mol Physiol 2006; 291:L580-7. [PMID: 16698855 DOI: 10.1152/ajplung.00270.2005] [Citation(s) in RCA: 90] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Neutrophils are considered to play a central role in ventilator-induced lung injury (VILI). However, the pulmonary consequences of neutrophil accumulation have not been fully elucidated. Matrix metalloproteinase-9 (MMP-9) had been postulated to participate in neutrophil transmigration. The purpose of this study was to investigate the role of MMP-9 in the neutrophilic inflammation of VILI. Male Sprague-Dawley rats were divided into three groups: 1) low tidal volume (LVT), 7 ml/kg of tidal volume (VT); 2) high tidal volume (HVT), 30 ml/kg of VT; and 3) HVT with MMP inhibitor (HVT+MMPI). As a MMPI, CMT-3 was administered daily from 3 days before mechanical ventilation. Degree of VILI was assessed by wet-to-dry weight ratio and acute lung injury (ALI) scores. Neutrophilic inflammation was determined from the neutrophil count in the lung tissue and myeloperoxidase (MPO) activity in the bronchoalveolar lavage fluid (BALF). MMP-9 expression and activity were examined by immunohistochemical staining and gelatinase zymography, respectively. The wet-to-dry weight ratio, ALI score, neutrophil infiltration, and MPO activity were increased significantly in the HVT group. However, in the HVT+MMPI group, pretreatment with MMPI decreased significantly the degree of VILI, as well as neutrophil infiltration and MPO activity. These changes correlated significantly with MMP-9 immunoreactivity and MMP-9 activity. Most outcomes were significantly worse in the HVT+MMPI group compared with the LVT group. In conclusion, VILI mediated by neutrophilic inflammation is closely related to MMP-9 expression and activity. The inhibition of MMP-9 protects against the development of VILI through the downregulation of neutrophil-mediated inflammation.
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Affiliation(s)
- Je Hyeong Kim
- Division of Pulmonology and Critical Care Medicine, Department of Internal Medicine, College of Medicine, Korea University, Seoul, and Institute of Human Genomic Study, Ansan Hospital, Korea
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Kim JH, Yoon DW, Hur GY, Jung KH, Lee SY, Lee SY, Shin C, Shim JJ, In KH, Yoo SH, Kang KH. The Role of Poly(ADP-ribose) Polymerase-1 in Ventilator-Induced Lung Injury. Tuberc Respir Dis (Seoul) 2006. [DOI: 10.4046/trd.2006.60.4.451] [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: 11/24/2022] Open
Affiliation(s)
- Je-Hyeong Kim
- Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Dae Wui Yoon
- Institute of Human Genomic Study, Ansan Hospital, Korea University Medical Center, Ansan, Korea
| | - Gyu Young Hur
- Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Ki Hwan Jung
- Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Sung Yong Lee
- Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Sang Yeub Lee
- Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Chol Shin
- Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Jae Jeong Shim
- Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Kwang Ho In
- Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Se Hwa Yoo
- Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Kyung Ho Kang
- Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea
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Lee SH, Yoon DW, Jung JY, Lee KJ, Kim SJ, Lee EJ, Kang EH, Jung KH, Lee SY, Lee SY, Kim JH, Shin C, Shim JJ, In KH, Yoo SH, Kang KH. The Effects of Ethyl Pyruvate on Lipopolysaccharide-induced Acute Lung Injury. Tuberc Respir Dis (Seoul) 2006. [DOI: 10.4046/trd.2006.61.4.374] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Affiliation(s)
- Seung Hyeun Lee
- Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Dae Wui Yoon
- Institute of Human Genomic Study, Ansan Hospital, Korea University Medical Center, Ansan, Korea
| | - Jin Yong Jung
- Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Kyung Joo Lee
- Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Se Joong Kim
- Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Eun Joo Lee
- Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Eun Hae Kang
- Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Ki Hwan Jung
- Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Sung Yong Lee
- Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Sang Yeub Lee
- Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Je Hyeong Kim
- Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Chol Shin
- Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Jae Jeong Shim
- Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Kwang Ho In
- Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Se Hwa Yoo
- Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Kyung Ho Kang
- Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea
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Kim DK, Kim JJ, Kim JH, Woo YM, Kim S, Yoon DW, Choi CS, Kim I, Park WJ, Lee N, Jung SB, Ahn BY, Nam SW, Yoon SM, Choi WJ. Comparison of two immunization schedules for a Pseudomonas aeruginosa outer membrane proteins vaccine in burn patients. Vaccine 2000; 19:1274-83. [PMID: 11137267 DOI: 10.1016/s0264-410x(00)00235-8] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The aim of the present study was to compare two immunization schedules for a Pseudomonas aeruginosa outer membrane proteins (OMPs) vaccine in burn patients. In a double-blind, randomized and placebo-controlled clinical trial, 95 adult patients with burn injuries in 10% or greater of total body surface area were randomly allocated to either placebo or immunization groups. Three doses of the vaccine (0.5 or 1.0 mg) were administered intramuscularly at either 3- or 7-day intervals. The vaccine was well tolerated, and no severe adverse reactions were observed in any of the vaccinees. After three immunizations, 88 patients were available for evaluation of serum antibody titers. Elevation of OMPs-specific antibody titers in the immunization groups was significantly higher as compared with the placebo group, and the highest antibody response was obtained by immunization with 1.0-mg doses at 3-day intervals. Conventional blood culture, tissue culture of wound biopsy specimens and a nested polymerase chain reaction (PCR) assay of blood specimens were performed to determine the protective efficacy. The results of the nested PCR indicated that the overall detection rate of P. aeruginosa in blood was significantly lower among immunized patients than placebo patients (6.1 vs. 40.0%, P<0.001). Based on these results, we concluded that the P. aeruginosa OMPs vaccine is safe and highly immunogenic in burn patients, especially with 1.0-mg doses at 3-day intervals, and may be effective in conferring protection against P. aeruginosa bacteremia in burn patients.
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Affiliation(s)
- D K Kim
- Hangang Sacred Heart Hospital, School of Medicine, Hallym University, Youngdungpo-ku, 150-020, Seoul, South Korea.
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Park JH, Spengler JD, Yoon DW, Dumyahn T, Lee K, Ozkaynak H. Measurement of air exchange rate of stationary vehicles and estimation of in-vehicle exposure. J Expo Anal Environ Epidemiol 1998; 8:65-78. [PMID: 9470106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The air exchange rates or air changes per hour (ACH) were measured under 4 conditions in 3 stationary automobiles. The ACH ranged between 1.0 and 3.0 h-1 with windows closed and no mechanical ventilation, between 1.8 and 3.7 h-1 for windows closed with fan set on recirculation, between 13.3 and 26.1 h-1 for window open with no mechanical ventilation, and between 36.2 and 47.5 h-1 for window closed with the fan set on fresh air. ACHs for windows closed with no ventilation were higher for the older automobile than for the newer automobiles. With the windows closed and fan turned off, ACH was not influenced by wind speed (p > 0.05). When the window was open, ACH appeared to be greatly affected by wind speed (R2 = 0.86). These measurements are relevant to understanding exposures inside automobiles to sources such as dry-cleaned clothes, cigarettes and airbags. Therefore, to understand the in-vehicle exposure to these internal sources, perchloroethylene (PCE) emitted from dry-cleaned clothes and environmental tobacco smoke (ETS) inside a vehicle were modeled for simulated driving cycles. Airbag deployment was also modeled for estimating exposure level to alkaline particulate and carbon monoxide (CO). Average exposure to PCE inside a vehicle for 30 minutes period was high (approximately 780 micrograms/m3); however, this is only 6% of the two-week exposure that is influenced by the storage of dry cleaned clothing at home. On the other hand, the exposure levels of respirable suspended particulate (RSP) and formaldehyde due to ETS could reach 2.1 mg/m3 and 0.11 ppm, respectively, when a person smokes inside a driving car even with the window open. In modeling the in-vehicle concentrations following airbag deployment, the average CO level over 20 minutes would not appear to present problem (less than 28 ppm). The peak concentration of respirable particulate would have exceeded 140 mg/m3. Since most of the particle mass is composed of alkaline material, these high levels might be expected to cause harmful effects on susceptible people, such as asthmatics. In all modeled cases, ACH would significantly affect build-up and dilution of pollutants originating from internal sources. Frequent stopping in congested urban traffic can greatly increase short-term exposures.
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Affiliation(s)
- J H Park
- Department of Environmental Health, School of Public Health, Harvard University, Boston, MA 02115, USA
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Lee H, Trimble JJ, Yoon DW, Regier D, Desrosiers RC, Jung JU. Genetic variation of herpesvirus saimiri subgroup A transforming protein and its association with cellular src. J Virol 1997; 71:3817-25. [PMID: 9094657 PMCID: PMC191532 DOI: 10.1128/jvi.71.5.3817-3825.1997] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.4] [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: 02/04/2023] Open
Abstract
Herpesvirus saimiri strain 11 of subgroup A contains a gene called the saimiri transformation-associated protein, STP, which is not required for viral replication but is required for in vitro immortalization and for the lymphoma-inducing capacity of the virus. To assess the effects of sequence variation on STP function, STP genes from six subgroup A isolates were cloned and sequenced. Sequence comparisons revealed extensive amino acid substitutions within the central region, but the acidic amino terminus and the hydrophobic carboxyl terminus were well conserved. Amino acid identities varied from 73 to 99% among all two-way comparisons. The highly conserved YAEV/I motif at amino acid residues 115 to 118 was preceded by negatively charged glutamic acid residues and thus matched very well the consensus sequence for binding to SH2 domains of src family kinases. The STPs of these subgroup A strains were shown to associate with cellular src and to be an in vitro substrate for src kinase. Mutational analysis of STP-A11 showed that binding to src kinase required the tyrosine residue at 115, showing that YAEV/I is a likely binding motif for src. Also, tyrosine phosphorylation of STP-A11 by src led to subsequent binding to lck and fyn in vitro. Thus, the association of STP with src is likely to be important for T-cell transformation by subgroup A strains of herpesvirus saimiri.
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Affiliation(s)
- H Lee
- Department of Microbiology and Molecular Genetics, New England Regional Primate Research Center, Harvard Medical School, Southborough, Massachusetts 01772, USA
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