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Hwang I, Kim SY, Kim YY, Park JH. Widening disparities in the national prevalence of diabetes mellitus for people with disabilities in South Korea. Public Health 2024; 226:173-181. [PMID: 38071950 DOI: 10.1016/j.puhe.2023.11.007] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 10/04/2023] [Accepted: 11/06/2023] [Indexed: 01/15/2024]
Abstract
OBJECTIVES In Korea, diabetes mellitus has a high disease burden, based on disability-adjusted life years. However, the disease burden is disproportionately distributed, with people with disabilities (PWD) experiencing higher rates of health disparities. Our study investigated long-term trends in diabetes prevalence and risk according to disability status, grade, and type. STUDY DESIGN Retrospective cohort study. METHODS Approximately 10 million individuals aged ≥30 years were included yearly from the National Health Information Database (NHID) and national disability registration data in Korea between 2008 and 2017, corresponding to 40 % of those aged ≥30 years in Korea. In 2017, 12, 975, 757 individuals were included; 5.5 % had disabilities. We estimated annual diabetes age-standardized prevalence and used multiple logistic regression analyses to estimate the odds of having diabetes in 2017, according to disability status, severity, and type. RESULTS Diabetes age-standardized prevalence consistently increased over 2008-2017 in PWD and people without disabilities. However, the prevalence increased more rapidly and was higher in all years among PWD, with widening disparities based on disability status. Additionally, diabetes prevalence was high in all years for specific subgroups, including women, individuals with intellectual or mental disabilities or autism, and individuals with severe disabilities, suggesting further disparities among PWD. CONCLUSIONS Our findings reveal health disparities between those with and without disabilities and among PWD subgroups. In addition to timely prevention, diabetes screening and management among PWD is vital. Public investment in improving disparities in the root causes of diabetes is essential, including health behaviours, healthcare utilization, and self-care.
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Affiliation(s)
- I Hwang
- Division of Economic Research, The Seoul Institute, Seoul, Republic of Korea
| | - S Y Kim
- Department of Public Health and Preventive Medicine, Chungbuk National University Hospital, Cheongju, Republic of Korea; Institute of Health & Science Convergence, Chungbuk National University, Cheongju, Republic of Korea
| | - Y Y Kim
- Big Data Steering Department, National Health Insurance Service, Wonju, Republic of Korea; Drug Evaluation Department, National Institute of Food and Drug Safety Evaluation, Cheongju, Republic of Korea
| | - J H Park
- Institute of Health & Science Convergence, Chungbuk National University, Cheongju, Republic of Korea; Department of Preventive Medicine, College of Medicine, Chungbuk National University, Cheongju, Republic of Korea.
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2
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Lee G, Park S, Lee S, Song K, Kim Y, Chang W, Kim J, Park N, Kim J, Park S, Hwang I, Kim H, Kim I. Bioimpedance Analysis as a Screening Tool in Heart-Transplanted Patients. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1265] [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: 04/05/2023] Open
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3
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Chung H, Seo H, Choi SH, Park CK, Kim TM, Park SH, Won JK, Lee JH, Lee ST, Lee JY, Hwang I, Kang KM, Yun TJ. Cluster Analysis of DSC MRI, Dynamic Contrast-Enhanced MRI, and DWI Parameters Associated with Prognosis in Patients with Glioblastoma after Removal of the Contrast-Enhancing Component: A Preliminary Study. AJNR Am J Neuroradiol 2022; 43:1559-1566. [PMID: 36175084 PMCID: PMC9731243 DOI: 10.3174/ajnr.a7655] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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] [Received: 04/17/2022] [Accepted: 08/21/2022] [Indexed: 02/01/2023]
Abstract
BACKGROUND AND PURPOSE No report has been published on the use of DSC MR imaging, DCE MR imaging, and DWI parameters in combination to create a prognostic prediction model in glioblastoma patients. The aim of this study was to develop a machine learning-based model to find preoperative multiparametric MR imaging parameters associated with prognosis in patients with glioblastoma. Normalized CBV, volume transfer constant, and ADC of the nonenhancing T2 high-signal-intensity lesions were evaluated using K-means clustering. MATERIALS AND METHODS A total of 142 patients with glioblastoma who underwent preoperative MR imaging and total resection were included in this retrospective study. From the normalized CBV, volume transfer constant, and ADC maps, the parametric data were sorted using the K-means clustering method. Patients were divided into training and test sets (ratio, 1:1), and the optimal number of clusters was determined using receiver operating characteristic analysis. Kaplan-Meier survival analysis and log-rank tests were performed to identify potential parametric predictors. A multivariate Cox proportional hazard model was conducted to adjust for clinical predictors. RESULTS The nonenhancing T2 high-signal-intensity lesions were divided into 6 clusters. The cluster (class 4) with the relatively low normalized CBV and volume transfer constant value and the lowest ADC values was most associated with predicting glioblastoma prognosis. The optimal cutoff of the class 4 volume fraction of nonenhancing T2 high-signal-intensity lesions predicting 1-year progression-free survival was 9.70%, below which the cutoff was associated with longer progression-free survival. Two Kaplan-Meier curves based on the cutoff value showed a statistically significant difference (P = .037). When we adjusted for all clinical predictors, the cluster with the relatively low normalized CBV and volume transfer constant values and the lowest ADC value was an independent prognostic marker (hazard ratio, 3.04; P = .048). The multivariate Cox proportional hazard model showed a concordance index of 0.699 for progression-free survival. CONCLUSIONS Our model showed that nonenhancing T2 high-signal-intensity lesions with the relatively low normalized CBV, low volume transfer constant values, and the lowest ADC values could serve as useful prognostic imaging markers for predicting survival outcomes in patients with glioblastoma.
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Affiliation(s)
- H Chung
- From the Seoul National University College of Medicine (H.C., H.S.), Seoul, Korea
| | - H Seo
- From the Seoul National University College of Medicine (H.C., H.S.), Seoul, Korea
| | - S H Choi
- Department of Radiology (S.H.C., J.Y.L., I.H., K.M.K., T.J.Y.), Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
- Center for Nanoparticle Research (S.H.C.), Institute for Basic Science, Seoul, Korea
- School of Chemical and Biological Engineering (S.H.C.), Seoul National University, Seoul, Korea
| | - C-K Park
- Department of Neurosurgery (C.-K.P.), Internal Medicine
| | - T M Kim
- Cancer Research Institute (T.M.K.)
| | - S-H Park
- Departments of Pathology (S.-H.P., J.K.W.), Radiation Oncology
| | - J K Won
- Departments of Pathology (S.-H.P., J.K.W.), Radiation Oncology
| | - J H Lee
- Cancer Research Institute (J.H.L.)
| | - S-T Lee
- Neurology (S.-T.L.), Seoul National University Hospital, Seoul, Korea
| | - J Y Lee
- Department of Radiology (S.H.C., J.Y.L., I.H., K.M.K., T.J.Y.), Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - I Hwang
- Department of Radiology (S.H.C., J.Y.L., I.H., K.M.K., T.J.Y.), Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - K M Kang
- Department of Radiology (S.H.C., J.Y.L., I.H., K.M.K., T.J.Y.), Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - T J Yun
- Department of Radiology (S.H.C., J.Y.L., I.H., K.M.K., T.J.Y.), Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
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Kim MH, Hwang I, Park JW, Yu HT, Kim TH, Uhm JS, Joung B, Lee MH, Pak HN. Blunted atrial reverse remodeling a year after catheter ablation for atrial fibrillation and their long-term rhythm outcome. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Although active rhythm control by atrial fibrillation (AF) catheter ablation (AFCA) reduces left atrial (LA) dimension, blunted atrial reverse remodeling can be observed in patients with significant atrial myopathy. We explored the characteristics and long-term outcomes of AF patients who showed blunted atrial reverse remodeling despite no AF recurrence within a year after AFCA.
Methods
Among a total of 2,756 patients with AFCA, we included 1,685 patients (74.8% male, 60.2±10.1 years old, 54.5% paroxysmal AF) who underwent both baseline and 1-year follow-up echocardiogram, baseline LA>40mm, and did not recur within a year. We divided them into tertile groups (T1–T3) based on one-year percent change of LA dimension after propensity matching for age, sex, AF type, and baseline LA dimension. We also investigated the patients' genetic characteristics with blunted LA reverse remodeling (T1) using a genome-wide association study (GWAS).
Results
Patients with blunted LA reverse remodeling (T1, n=424) were independently associated with body mass index (OR 1.082 [1.010–1.160], p=0.025), LA peak pressure (OR 1.010 [1.002–1.019], p=0.019), LA wall thickness (OR 0.448 [0.252–0.789], p=0.006), LA voltage (OR 0.651 [0.463–0.907], p=0.012), and pericardial fat volume (OR 1.004 [1.001–1.008], p=0.014). Throughout 65.9±37.4 months of follow-up, the incidence of AF recurrence a year after the procedure was significantly higher in the T1 group than in T2 or T3 groups (Log-rank p<0.001). Among 894 patients with GWAS, ATXN1, XPO7, KRR1_PHLDA1, ZFHX3, and their polygenic risk score were associated with blunted LA reverse remodeling.
Conclusions
Patients with blunted LA reverse remodeling after AFCA were independently associated with low LA voltage, thin wall thickness, high LA pressure, and fat volume, and have a genetic background. Long-term clinical recurrence a year after AFCA was higher in this patient group with suspicious atrial myopathy.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): Ministry of Health and WelfareNational Research Foundation of Korea
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Affiliation(s)
- M H Kim
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - I Hwang
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - J W Park
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - H T Yu
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - T H Kim
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - J S Uhm
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - B Joung
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - M H Lee
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - H N Pak
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
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5
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Hwang I, Kwon OS, Hong M, Yang SY, Park JW, Yu HT, Kim TH, Uhm JS, Joung B, Lee MH, Pak HN. Association of ZFHX3 genetic polymorphisms and extra-pulmonary vein triggers in patients with atrial fibrillation who underwent catheter ablation. Europace 2022. [DOI: 10.1093/europace/euac053.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): Ministry of Health and Welfare, National Research Foundation of Korea (NRF)
Abstract
Background
The ZFHX3 gene (16q22) is the second most highly associated gene with atrial fibrillation (AF) and is related to inflammation and fibrosis.
Purpose
We hypothesized that ZFHX3 is associated with extra-pulmonary vein (PV) triggers, left atrial (LA) structural remodeling, and poor rhythm outcomes of AF catheter ablation (AFCA).
Methods
We included 1782 patients who underwent a de novo AFCA (73.5% male, 59.4±10.8 years old, 65.9% paroxysmal AF) and genome-wide association study and divided them into discovery (n=891) and replication cohorts (n=891). All included patients underwent isoproterenol provocation tests and LA voltage mapping. We analyzed the ZFHX3, extra-PV trigger-related factors, and rhythm outcomes.
Results
Among 14 single-nucleotide polymorphisms (SNPs) of ZFHX3, rs13336412, rs61208973, rs2106259, rs12927436, and rs1858801 were associated with extra-PV triggers. In the overall patient group, extra-PV triggers were independently associated with the ZFHX3 polygenic risk score (PRS) (OR 1.65 [1.22-2.22], p=0.001, model 1) and a low LA voltage (OR 0.74 [0.56-0.97], p=0.029, model 2). During 49.9±40.3 months of follow-up, clinical recurrence of AF was significantly higher in patients with extra-PV triggers (Log-rank p<0.001, HR 1.89 [1.49-2.39], p<0.001, model 1), large LA dimensions (Log-rank p<0.001, HR 1.03 [1.01-1.05], p=0.002, model 2), and low LA voltages (Log-rank p<0.001, HR 0.73 [0.61-0.86], p<0.001, model 2) but not the ZFHX3 PRS (Log-rank p=0.819).
Conclusions
The extra-PV triggers had significant associations with both ZFHX3 genetic polymorphisms and acquired LA remodeling. Although extra-PV triggers were an independent predictor of AF recurrence after AFCA, the studied AF risk SNPs intronic in ZFHX3 were not associated with AF recurrence.
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Affiliation(s)
- I Hwang
- Yonsei University College of Medicine, Yonsei University Health System, Seoul, Korea (Republic of)
| | - O-S Kwon
- Yonsei University College of Medicine, Yonsei University Health System, Seoul, Korea (Republic of)
| | - M Hong
- Yonsei University College of Medicine, Yonsei University Health System, Seoul, Korea (Republic of)
| | - S-Y Yang
- Yonsei University College of Medicine, Yonsei University Health System, Seoul, Korea (Republic of)
| | - J-W Park
- Yonsei University College of Medicine, Yonsei University Health System, Seoul, Korea (Republic of)
| | - H T Yu
- Yonsei University College of Medicine, Yonsei University Health System, Seoul, Korea (Republic of)
| | - T-H Kim
- Yonsei University College of Medicine, Yonsei University Health System, Seoul, Korea (Republic of)
| | - J-S Uhm
- Yonsei University College of Medicine, Yonsei University Health System, Seoul, Korea (Republic of)
| | - B Joung
- Yonsei University College of Medicine, Yonsei University Health System, Seoul, Korea (Republic of)
| | - M-H Lee
- Yonsei University College of Medicine, Yonsei University Health System, Seoul, Korea (Republic of)
| | - H-N Pak
- Yonsei University College of Medicine, Yonsei University Health System, Seoul, Korea (Republic of)
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6
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Hwang I, Hong M, Hwang TH, Yu HT, Kim TH, Uhm JS, Joung B, Lee MH, Jee SH, Pak HN. Genetic predisposition according to the age at the onset of atrial fibrillation. Europace 2022. [DOI: 10.1093/europace/euac053.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): The Ministry of Health and Welfare National Research Foundation of Korea (NRF)
Background
Although atrial fibrillation (AF) is a heritable disease, multiple comorbid factors, including aging, contribute to its development.
Purpose
We investigated the association between a weighted genetic risk score (wGRS) for AF and the age at onset.
Methods
We included 1,968 patients with AF (Yonsei AF Ablation cohort) and 5,486 controls from the Korean Genome Epidemiology Study (KoGES). After 1:1 matching, 1,416 patients and 1,416 controls were included in the analyses. The age of AF onset was determined by the first electrocardiogram (ECG) documentation.
Results
We selected nine previously reported AF-associated single-nucleotide polymorphisms (SNPs). Among nine proven AF-associated SNPs, 4 genes (PRRX1, PPFIA4, PITX2, and ZFHX3) were independently associated with the age at the onset of AF (p<0.05), but no associated genes were found in the controls. In the quartile and multivariate analyses, the lower quartile age at the onset of AF had a higher wGRS (p<0.001), and a younger age at the onset of AF was independently associated with the wGRS (β -0.29 [-0.57--0.01], p=0.045), but that association was not observed in the control cohort. Contrarily, the higher quartile of the wGRS group had a younger age of AF onset (p<0.001), and the wGRS was independently associated with the age at onset of AF (β -0.02 [-0.03--0.01], p=0.002). In the subgroup analyses, these age-wGRS associations were significant in males (p<0.001) and in those without heart failure (p<0.001) or strokes (p<0.001).
Conclusions
AF-associated genetic loci significantly contributed to the age at the onset of AF, as determined by the first ECG.
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Affiliation(s)
- I Hwang
- Yonsei University College of Medicine, Yonsei University Health System, Seoul, Korea (Republic of)
| | - M Hong
- Yonsei University College of Medicine, Yonsei University Health System, Seoul, Korea (Republic of)
| | - T H Hwang
- Yonsei University College of Medicine, Yonsei University Health System, Seoul, Korea (Republic of)
| | - H T Yu
- Yonsei University College of Medicine, Yonsei University Health System, Seoul, Korea (Republic of)
| | - T-H Kim
- Yonsei University College of Medicine, Yonsei University Health System, Seoul, Korea (Republic of)
| | - J-S Uhm
- Yonsei University College of Medicine, Yonsei University Health System, Seoul, Korea (Republic of)
| | - B Joung
- Yonsei University College of Medicine, Yonsei University Health System, Seoul, Korea (Republic of)
| | - M-H Lee
- Yonsei University College of Medicine, Yonsei University Health System, Seoul, Korea (Republic of)
| | - S H Jee
- Yonsei University College of Medicine, Yonsei University Health System, Seoul, Korea (Republic of)
| | - H-N Pak
- Yonsei University College of Medicine, Yonsei University Health System, Seoul, Korea (Republic of)
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7
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Dhasaiyan P, Ghosh T, Lee HG, Lee Y, Hwang I, Mukhopadhyay RD, Park KM, Shin S, Kang IS, Kim K. Cascade reaction networks within audible sound induced transient domains in a solution. Nat Commun 2022; 13:2372. [PMID: 35501325 PMCID: PMC9061750 DOI: 10.1038/s41467-022-30124-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 04/07/2022] [Indexed: 11/09/2022] Open
Abstract
AbstractSpatiotemporal control of chemical cascade reactions within compartmentalized domains is one of the difficult challenges to achieve. To implement such control, scientists have been working on the development of various artificial compartmentalized systems such as liposomes, vesicles, polymersomes, etc. Although a considerable amount of progress has been made in this direction, one still needs to develop alternative strategies for controlling cascade reaction networks within spatiotemporally controlled domains in a solution, which remains a non-trivial issue. Herein, we present the utilization of audible sound induced liquid vibrations for the generation of transient domains in an aqueous medium, which can be used for the control of cascade chemical reactions in a spatiotemporal fashion. This approach gives us access to highly reproducible spatiotemporal chemical gradients and patterns, in situ growth and aggregation of gold nanoparticles at predetermined locations or domains formed in a solution. Our strategy also gives us access to nanoparticle patterned hydrogels and their applications for region specific cell growth.
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8
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Lee HG, Kim JH, Gorai T, Ko YH, Kwon HY, Chung W, Hwang I, Lim S, Kim YK, Shin K, Chang YT, Kim K, Park KM. Contagious Aggregation: Transmittable Protein Aggregation in Cellular Communities Initiated by Synthetic Cells. J Am Chem Soc 2022; 144:5067-5073. [PMID: 35258954 DOI: 10.1021/jacs.1c13545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Aggregation of amyloidogenic proteins causing neurodegenerative diseases is an uncontrollable and contagious process that is often associated with lipid membranes in a highly complex physiological environment. Although several approaches using natural cells and membrane models have been reported, systematic investigations focusing on the association with the membranes are highly challenging, mostly because of the lack of proper molecular tools. Here, we report a new supramolecular approach using a synthetic cell system capable of controlling the initiation of protein aggregation and mimicking various conditions of lipid membranes, thereby enabling systematic investigations of membrane-dependent effects on protein aggregation by visualization. Extending this strategy through concurrent use of synthetic cells and natural cells, we demonstrate the potential of this approach for systematic and in-depth studies on interrogating inter- and intracellularly transmittable protein aggregation. Thus, this new approach offers opportunities for gaining insights into the pathological implications of contagious protein aggregation associated with membranes for neurotoxicity.
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Affiliation(s)
- Hong-Guen Lee
- Center for Self-assembly and Complexity, Institute for Basic Science, Pohang 37673, Republic of Korea.,Department of Chemistry, Pohang University of Science and Technology, Pohang 37673, Republic of Korea
| | - Jin Hae Kim
- Department of New Biology, Daegu Gyeongbuk Institute of Science & Technology, Daegu 42988, Republic of Korea
| | - Tumpa Gorai
- Center for Self-assembly and Complexity, Institute for Basic Science, Pohang 37673, Republic of Korea
| | - Young Ho Ko
- Center for Self-assembly and Complexity, Institute for Basic Science, Pohang 37673, Republic of Korea
| | - Haw-Young Kwon
- Center for Self-assembly and Complexity, Institute for Basic Science, Pohang 37673, Republic of Korea
| | - Wooseong Chung
- Department of Chemistry, Pohang University of Science and Technology, Pohang 37673, Republic of Korea
| | - Ilha Hwang
- Center for Self-assembly and Complexity, Institute for Basic Science, Pohang 37673, Republic of Korea
| | - Sungsu Lim
- Brain Science Institute, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Yun Kyung Kim
- Brain Science Institute, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea.,Division of Bio-Medical Science & Technology, KIST School, University of Science and Technology, Seoul 02792, Republic of Korea
| | - Kwanwoo Shin
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, Seoul 04107, Republic of Korea
| | - Young-Tae Chang
- Center for Self-assembly and Complexity, Institute for Basic Science, Pohang 37673, Republic of Korea.,Department of Chemistry, Pohang University of Science and Technology, Pohang 37673, Republic of Korea
| | - Kimoon Kim
- Center for Self-assembly and Complexity, Institute for Basic Science, Pohang 37673, Republic of Korea.,Department of Chemistry, Pohang University of Science and Technology, Pohang 37673, Republic of Korea
| | - Kyeng Min Park
- Center for Self-assembly and Complexity, Institute for Basic Science, Pohang 37673, Republic of Korea.,Department of Biochemistry, Daegu Catholic University School of Medicine, 33 Duryugongwon-ro 17-gil, Daegu 42472, Republic of Korea
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9
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Brown F, Hwang I, Sloan S, Hinterschied C, Helmig‐Mason J, Long M, Youssef Y, Chan W, Prouty A, Chung J, Zhang Y, Chen‐Kiang S, DiLiberto M, Elemento O, Sehgal L, Alinari L, Scherle P, Vaddi K, Lapalombella R, Paik J, Baiocchi RA. PRMT5 INHIBITION RESTARTS A PRO‐APOPTOTIC PROGRAM AND CREATES VULNERABILITY TO COMBINATION TREATMENT WITH BCL‐2 INHIBITOR VENETOCLAX IN MANTLE CELL LYMPHOMA. Hematol Oncol 2021. [DOI: 10.1002/hon.143_2880] [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: 11/11/2022]
Affiliation(s)
- F Brown
- The Ohio State University Department of Hematology Columbus USA
| | - I Hwang
- Weil Cornell Medicine Department of Pathology and Laboratory Medicine New York USA
| | - S Sloan
- The Ohio State University Department of Hematology Columbus USA
| | - C Hinterschied
- The Ohio State University Department of Hematology Columbus USA
| | - J Helmig‐Mason
- The Ohio State University Department of Hematology Columbus USA
| | - M Long
- The Ohio State University Department of Hematology Columbus USA
| | - Y Youssef
- The Ohio State University Department of Hematology Columbus USA
| | - W Chan
- The Ohio State University Department of Hematology Columbus USA
| | - A Prouty
- The Ohio State University Department of Hematology Columbus USA
| | - J Chung
- The Ohio State University Department of Hematology Columbus USA
| | - Y Zhang
- Prelude Therapeutics, R&D, Wilmington Delaware USA
| | - S Chen‐Kiang
- Weil Cornell Medicine Department of Pathology and Laboratory Medicine New York USA
| | - M DiLiberto
- Weil Cornell Medicine Department of Pathology and Laboratory Medicine New York USA
| | - O Elemento
- Weil Cornell Medicine Department of Physiology & Biophysics, New York New York USA
| | - L Sehgal
- The Ohio State University Department of Hematology Columbus USA
| | - L Alinari
- The Ohio State University Department of Hematology Columbus USA
| | - P Scherle
- Prelude Therapeutics, R&D, Wilmington Delaware USA
| | - K Vaddi
- Prelude Therapeutics, R&D, Wilmington Delaware USA
| | - R Lapalombella
- The Ohio State University Department of Hematology Columbus USA
| | - J Paik
- Weil Cornell Medicine Department of Pathology and Laboratory Medicine New York USA
| | - R. A Baiocchi
- The Ohio State University Department of Hematology Columbus USA
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10
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Hwang I, Park J, Kwon O, Lim B, Hong M, Kim M, Yu H, Kim T, Uhm J, Joung B, Lee M, Pak H. Computational modeling for antiarrhythmic drugs for atrial fibrillation according to the genotypes. Europace 2021. [DOI: 10.1093/europace/euab116.171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): This work was supported by a grant [HI19C0114] from the Ministry of Health and Welfare. Additionally, the work was funded by grants [NRF-2019R1C1C100907512], and [NRF-2020R1A2B01001695] from the Basic Science Research Program run by the National Research Foundation of Korea (NRF) under the Ministry of Science, ICT & Future Planning (MSIP).
Background
The efficacy of antiarrhythmic drugs (AAD) can vary in patients with atrial fibrillation (AF) and the PITX2 gene affects the responsiveness of AADs. We explored the virtual AAD (V-AAD) responses between wild-type and PITX2+/- deficient AF conditions by realistic in-silico AF modeling.
Methods
We tested the V-AADs in AF modeling integrated with patients’ 3D-computed tomography and 3D-electroanatomical mapping, acquired in 25 patients (68% male, 59.8 ± 9.8 years old, 32.0% paroxysmal type). The ion currents for the PITX2+/- deficiency and each AAD (amiodarone, sotalol, dronedarone, flecainide, and propafenone) were defined based on previous publications.
Results
We compared the wild-type and PITX2+/- deficiency in terms of the action potential duration (APD90), conduction velocity (CV), maximal slope of restitution (Smax), and wave-dynamic parameters, such as the dominant frequency (DF), phase singularities (PS), and AF termination rates according to the V-AADs. The PITX2+/- deficient model exhibited a shorter APD90 (p < 0.001), a lower Smax (p < 0.001), mean DF (p = 0.012), PS number (p < 0.001), and a longer AF cycle length (AFCL, p = 0.011). Five V-AADs changed the electrophysiology in a dose dependent manner. AAD-induced AFCL lengthening (p < 0.001) and reductions in the CV (p = 0.033), peak DF (p < 0.001) and PS number (p < 0.001) were more significant in PITX2+/- deficient than wild-type AF. PITX2+/- deficient AF was easier to terminate with class IC AADs than the wild-type AF (p = 0.018).
Conclusions
The computational modeling-guided AAD test was feasible for evaluating the efficacy of multiple AADs in patients with AF. AF wave-dynamics and electrophysiological characteristics are different among the PITX2 deficient and the wild-type genotype models. BaselineChanges after AADClass ICClass IIIWild-typePITX2+/-p-valueWild-typePITX2+/-p-valueWild-typePITX2+/-p-valueWild-typePITX2+/-p-valueAPD90, (ms)243.7 ± 33.8184.4 ± 15.5<0.00138.2 ± 37.343.4 ± 56.20.223275.9 ± 43.5219.0 ± 39.2<0.001284.9 ± 32.8233.8 ± 71.4<0.001CV, (m/s)0.78 ± 0.320.70 ± 0.210.347-0.15 ± 0.18-0.20 ± 0.260.0330.63 ± 0.320.53 ± 0.300.0270.60 ± 0.360.43 ± 0.33<0.001Mean Smax0.787 ± 0.280.531 ± 0.18<0.0010.005 ± 0.260.115 ± 0.24<0.0010.828 ± 0.310.694 ± 0.320.0030.768 ± 0.320.608 ± 0.27<0.001Mean AFCL, (ms)146.96 ± 24.61164.78 ± 22.730.01122.62 ± 24.5537.92 ± 32.72<0.001165.44 ± 36.96190.85 ± 35.61<0.001169.05 ± 25.26203.35 ± 34.78<0.001Peak DF, (Hz)10.68 ± 2.9711.82 ± 3.340.211-2.98 ± 4.94-5.46 ± 4.66<0.00110.01 ± 4.397.23 ± 4.20<0.0016.30 ± 4.325.80 ± 4.070.301Mean DF, (Hz)6.80 ± 0.886.22 ± 0.710.012-1.95 ± 2.44-2.20 ± 1.990.2065.75 ± 1.784.53 ± 2.00<0.0014.14 ± 2.393.69 ± 2.000.077PS Number, (N)101086 ± 9608814150 ± 24778<0.001-59322 ± 99288-7409 ± 27856<0.00150579 ± 6523611568 ± 21868<0.00132951 ± 558643524 ± 8302<0.001PS Life Span, (ms)109.36 ± 113.90102.24 ± 226.640.889-24.87 ± 72.06-41.38 ± 126.350.073103.36 ± 180.6868.05 ± 162.790.14871.91 ± 141.8655.99 ± 217.970.454Table. Effects of AADs in the Wild-type and PITX2+/- Deficiency groupAbstract Figure. Wild-type vs. PITX2+/- baseline model
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Affiliation(s)
- I Hwang
- Yonsei University, Seoul, Korea (Republic of)
| | - J Park
- Yonsei University, Seoul, Korea (Republic of)
| | - O Kwon
- Yonsei University, Seoul, Korea (Republic of)
| | - B Lim
- Yonsei University, Seoul, Korea (Republic of)
| | - M Hong
- Yonsei University, Seoul, Korea (Republic of)
| | - M Kim
- Yonsei University, Seoul, Korea (Republic of)
| | - H Yu
- Yonsei University, Seoul, Korea (Republic of)
| | - T Kim
- Yonsei University, Seoul, Korea (Republic of)
| | - J Uhm
- Yonsei University, Seoul, Korea (Republic of)
| | - B Joung
- Yonsei University, Seoul, Korea (Republic of)
| | - M Lee
- Yonsei University, Seoul, Korea (Republic of)
| | - H Pak
- Yonsei University, Seoul, Korea (Republic of)
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11
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Beaudoin FL, Kessler RC, Hwang I, Lee S, Sampson NA, An X, Ressler KJ, Koenen KC, McLean SA. Pain after a motor vehicle crash: The role of socio-demographics, crash characteristics and peri-traumatic stress symptoms. Eur J Pain 2021; 25:1119-1136. [PMID: 33458880 PMCID: PMC10913946 DOI: 10.1002/ejp.1733] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [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] [Received: 03/16/2020] [Accepted: 01/13/2021] [Indexed: 11/05/2022]
Abstract
BACKGROUND The vast majority of individuals who come to the emergency department (ED) for care after a motor vehicle collision (MVC) are diagnosed with musculoskeletal strain only and are discharged to home. A significant subset of this population will still develop persistent pain and posttraumatic psychological sequelae may play an important role in pain persistence. METHODS We conducted a multisite longitudinal cohort study of adverse post-traumatic neuropsychiatric sequelae among patients seeking ED treatment in the aftermath of a traumatic life experience. We report on a sub-group of patients (n = 666) presenting after an MVC, the most common type of trauma and we examine associations of socio-demographic and MVC characteristics, and persistent pain 8 weeks after MVC. We also examine the degree to which these associations are related to peritraumatic psychological symptoms and 2-week acute stress reactions using an applied approach. RESULTS Eight-week prevalence of persistent moderate or severe pain was high (67.4%) and positively associated with patient sex (female), older age, low socioeconomic status (education and income) and pain severity in the ED. Peritraumatic stress symptoms (distress and dissociation) appear to exert some influence on both acute pain and the transition from acute to persistent pain. DISCUSSION AND CONCLUSIONS The early aftermath of an MVC may be an important time period for intervening to prevent and reduce persistent pain. Substantial variation in mediating pathways across predictors also suggests potential diverse and complex underlying biological and psychological pathogenic processes are at work in the early weeks following trauma. SIGNIFICANCE The first several days after trauma may dictate recovery trajectories. Persistent pain, pain lasting beyond the expected time of recovery, is associated with pain early in the recovery period, but also mediated through other pathways. Future work is needed to understand the complex neurobiological processes in involved in the development of persistent and acute post-traumatic pain.
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Affiliation(s)
- Francesca L. Beaudoin
- Department of Emergency Medicine & Health Services, Policy, and Practice, The Alpert Medical School of Brown University, Providence, RI, USA
- Rhode Island Hospital and The Miriam Hospital, Providence, RI, USA
| | - R. C. Kessler
- Department of Health Care Policy, Harvard Medical School, Boston, MA, USA
| | - I. Hwang
- Department of Health Care Policy, Harvard Medical School, Boston, MA, USA
| | - S. Lee
- Department of Health Care Policy, Harvard Medical School, Boston, MA, USA
| | - N. A. Sampson
- Department of Health Care Policy, Harvard Medical School, Boston, MA, USA
| | - X. An
- Department of Anesthesiology, Institute for Trauma Recovery, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - K. J. Ressler
- Department of Psychiatry, Harvard Medical School and McLean Hospital, Belmont, MA, USA
| | - K. C. Koenen
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - S. A. McLean
- Department of Anesthesiology, Institute for Trauma Recovery, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Emergency Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
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12
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Han G, Cho H, Kim J, Hwang I, Chung J, Kang E, Hewitt S. Clinical significance of tumor infiltrating lymphocytes in hormone receptors positive epithelial ovarian cancer. Gynecol Oncol 2020. [DOI: 10.1016/j.ygyno.2020.05.125] [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: 11/16/2022]
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Hwang I, Lee JM, Park JB, Yoon YE, Lee SP, Kim HK, Kim YJ, Cho GY, Park SJ, Kim KH, Hong GR. P1368 Effect of angiotensin receptor blocker in patients with moderate or severe aortic stenosis: a randomized controlled trial. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Funding Acknowledgements
This study was supported by grants from Boryung Pharmacy Research Fund.
Background/Introduction: Pathophysiology of aortic stenosis (AS) and several previous studies suggested the potential role of angiotensin receptor blocker (ARB) in patients with AS.
Purpose
We aimed to investigate the effects of Fimasartan, an ARB, on exercise capacity and progression of AS in patients with moderate to severe AS.
Methods
We conducted a prospective, randomized, double-blind, placebo-controlled trial in 32 normotensive or controlled-hypertensive patients with moderate or severe AS. Study participants were randomized to Fimasartan 30 mg to 60 mg daily (n = 14) or placebo (n = 18) for 1 year, and underwent cardiopulmonary exercise test, 6-minute walk test, and echocardiography at 0, 6, and 12 months, with follow-up data available in 29 subjects.
Results
Significant reductions in blood pressures were observed in the Fimasartan group but not in the placebo group. Two of the 14 patients in the Fimasartan group withdrew the study due to mild symptoms probably related with the decreased blood pressure, and one patient decline the study protocol. After the 12-month treatment, the peak oxygen consumption (VO2; the primary outcome) in the Fimasartan group was significantly decreased (from 28.3 ± 5.9 to 25.4 ± 3.8 mL/min/kg, P = 0.021) but not in the placebo group (P for interaction = 0.046) (Figure 1A). The severity of AS showed a gradual progression in both groups, without inter-group differences (mean transaortic pressure; Fimasartan group, +4.0 ± 3.8 mmHg/year; placebo group, +5.3 ± 6.2 mmHg/year; P for interaction = 0.429) (Figure 1B). Parameters of left ventricular systolic and diastolic function did not change in both groups.
Conclusions
The use of ARB impaired exercise capacity in patients with moderate or severe AS, and did not prevent the progression of AS. However, due to the small number of participants, further studies are required to confirm these findings.
Abstract P1368 Figure.
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Affiliation(s)
- I Hwang
- Seoul National University Bundang Hospital, Seongnam, Korea (Republic of)
| | - J M Lee
- Samsung Medical Center, Cardiovascular Center, Seoul, Korea (Republic of)
| | - J B Park
- Seoul National University Hospital, Seoul, Korea (Republic of)
| | - Y E Yoon
- Seoul National University Bundang Hospital, Seongnam, Korea (Republic of)
| | - S P Lee
- Seoul National University Hospital, Seoul, Korea (Republic of)
| | - H K Kim
- Seoul National University Hospital, Seoul, Korea (Republic of)
| | - Y J Kim
- Seoul National University Hospital, Seoul, Korea (Republic of)
| | - G Y Cho
- Seoul National University Bundang Hospital, Seongnam, Korea (Republic of)
| | - S J Park
- Samsung Medical Center, Cardiovascular Center, Seoul, Korea (Republic of)
| | - K H Kim
- Chonnam National University Hospital, Gwangju, Korea (Republic of)
| | - G R Hong
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
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Hwang I, Choi SH, Park CK, Kim TM, Park SH, Won JK, Kim IH, Lee ST, Yoo RE, Kang KM, Yun TJ, Kim JH, Sohn CH. Dynamic Contrast-Enhanced MR Imaging of Nonenhancing T2 High-Signal-Intensity Lesions in Baseline and Posttreatment Glioblastoma: Temporal Change and Prognostic Value. AJNR Am J Neuroradiol 2019; 41:49-56. [PMID: 31806595 DOI: 10.3174/ajnr.a6323] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 10/02/2019] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE The prognostic value of dynamic contrast-enhanced MR imaging on nonenhancing T2 high-signal-intensity lesions in patients with glioblastoma has not been thoroughly elucidated to date. We evaluated the temporal change and prognostic value for progression-free survival of dynamic contrast-enhanced MR imaging-derived pharmacokinetic parameters on nonenhancing T2 high-signal-intensity lesions in patients with glioblastoma before and after standard treatment, including gross total surgical resection. MATERIALS AND METHODS This retrospective study included 33 patients who were newly diagnosed with glioblastoma and treated with gross total surgical resection followed by concurrent chemoradiation therapy and adjuvant chemotherapy with temozolomide in a single institution. All patients underwent dynamic contrast-enhanced MR imaging before surgery as a baseline and after completion of maximal surgical resection and concurrent chemoradiation therapy. On the whole nonenhancing T2 high-signal-intensity lesion, dynamic contrast-enhanced MR imaging-derived pharmacokinetic parameters (volume transfer constant [K trans], volume of extravascular extracellular space [v e], and blood plasma volume [vp ]) were calculated. The Cox proportional hazards regression model analysis was performed to determine the histogram features or percentage changes of pharmacokinetic parameters related to progression-free survival. RESULTS Baseline median K trans, baseline first quartile K trans, and posttreatment median K trans were significant independent variables, as determined by univariate analysis (P < .05). By multivariate Cox regression analysis including methylation status of O6-methylguanine-DNA methyltransferase, baseline median K trans was determined to be the significant independent variable and was negatively related to progression-free survival (hazard ratio = 1.48, P = .003). CONCLUSIONS Baseline median K trans from nonenhancing T2 high-signal-intensity lesions could be a potential prognostic imaging biomarker in patients undergoing gross total surgical resection followed by standard therapy for glioblastoma.
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Affiliation(s)
- I Hwang
- From the Department of Radiology (I.H., S.H.C., R.-E.Y., K.M.K., T.J.Y., J.-H.K., C.-H.S.), Center for Nanoparticle Research
| | - S H Choi
- From the Department of Radiology (I.H., S.H.C., R.-E.Y., K.M.K., T.J.Y., J.-H.K., C.-H.S.), Center for Nanoparticle Research .,Institute for Basic Science, and School of Chemical and Biological Engineering (S.H.C.)
| | - C-K Park
- Department of Neurosurgery and Biomedical Research Institute (P.C.-K.)
| | - T M Kim
- Department of Internal Medicine and Cancer Research Institute (T.M.K.)
| | - S-H Park
- Department of Pathology (S.-H.P., J.K.W.)
| | - J K Won
- Department of Pathology (S.-H.P., J.K.W.)
| | - I H Kim
- Department of Radiation Oncology and Cancer Research Institute (I.H.K.)
| | - S-T Lee
- Department of Neurology (S.-T.L.), Seoul National University Hospital, Seoul, Korea
| | - R-E Yoo
- From the Department of Radiology (I.H., S.H.C., R.-E.Y., K.M.K., T.J.Y., J.-H.K., C.-H.S.), Center for Nanoparticle Research
| | - K M Kang
- From the Department of Radiology (I.H., S.H.C., R.-E.Y., K.M.K., T.J.Y., J.-H.K., C.-H.S.), Center for Nanoparticle Research
| | - T J Yun
- From the Department of Radiology (I.H., S.H.C., R.-E.Y., K.M.K., T.J.Y., J.-H.K., C.-H.S.), Center for Nanoparticle Research
| | - J-H Kim
- From the Department of Radiology (I.H., S.H.C., R.-E.Y., K.M.K., T.J.Y., J.-H.K., C.-H.S.), Center for Nanoparticle Research
| | - C-H Sohn
- From the Department of Radiology (I.H., S.H.C., R.-E.Y., K.M.K., T.J.Y., J.-H.K., C.-H.S.), Center for Nanoparticle Research
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Mazare A, Park J, Simons S, Mohajernia S, Hwang I, Yoo JE, Schneider H, Fischer MJ, Schmuki P. Black TiO 2 nanotubes: Efficient electrodes for triggering electric field-induced stimulation of stem cell growth. Acta Biomater 2019; 97:681-688. [PMID: 31419565 DOI: 10.1016/j.actbio.2019.08.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [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] [Received: 05/06/2019] [Revised: 07/19/2019] [Accepted: 08/11/2019] [Indexed: 11/29/2022]
Abstract
TiO2 nanostructures represent a key platform for biomedical applications, due to the combination of biocompatibility and high surface area. Especially TiO2 nanotube layers have been widely investigated due to controllable nanotopographic effects as well as for electrodes in electrostimulation experiments. In the present work we produce Ar/H2-reduced 'black' TiO2 nanotube arrays with a strongly enhanced electrical conductivity and explore their interaction with mesenchymal stem cells when used as electrodes to apply electric fields (EF) across the cells. While we observe no significant change in cell adhesion and their focal contact formation on these high conductivity nanotubes, we do observe a rapid stem cell response when EF is engaged using the 'black' TiO2 nanotube arrays as electrodes. Compared to as-formed nanotube arrays, a faster stem cell growth was observed and a lower EF intensity caused an intracellular calcium level elevation. Our results indicate that the increased conductivity in TiO2 nanotubes significantly enhances the early stem cell response to minimal electric field stimuli. STATEMENT OF SIGNIFICANCE: The use of TiO2 nanostructures in biomedical applications is widely investigated, especially considering the nanostructured surface influence on the biomaterial-cell interactions. We have previously shown that an applied electric field (EF) on stem cells grown on TiO2 nanotubes leads to synergistic osteogenic stimulation in the absence of biochemical bone-inducing supplements. Here we report that black (i.e. highly conductive nanotubes obtained by reduction treatments) TiO2 nanotubes enable short-time EF effects on stem cells: we observe a faster stem cell growth and a significantly enhanced early stem cell response to minimal EF stimuli. The application of such nanostructures under electric field is promising for therapeutic interventions for bone regeneration and tissue engineering approaches.
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Affiliation(s)
- A Mazare
- Friedrich-Alexander University, Department of Materials Science WW4-LKO, 91058 Erlangen, Germany
| | - J Park
- University Hospital Erlangen, Children Hospital, 91054 Erlangen, Germany
| | - S Simons
- Friedrich-Alexander University, Department of Materials Science WW4-LKO, 91058 Erlangen, Germany
| | - S Mohajernia
- Friedrich-Alexander University, Department of Materials Science WW4-LKO, 91058 Erlangen, Germany
| | - I Hwang
- Friedrich-Alexander University, Department of Materials Science WW4-LKO, 91058 Erlangen, Germany
| | - J E Yoo
- Friedrich-Alexander University, Department of Materials Science WW4-LKO, 91058 Erlangen, Germany
| | - H Schneider
- University Hospital Erlangen, Children Hospital, 91054 Erlangen, Germany
| | - M J Fischer
- Medical University of Vienna, Center for Physiology and Pharmacology, 1090 Vienna, Austria
| | - P Schmuki
- Friedrich-Alexander University, Department of Materials Science WW4-LKO, 91058 Erlangen, Germany.
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Jang J, Haberecker M, Curioni A, Janker F, Soltermann A, Gil-Bazo I, Hwang I, Kwon K, Weder W, Jungraithmayr W. EP1.03-33 CD26/DPP4 as a Novel Prognostic Marker for Lung Adenocarcinoma. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2114] [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: 10/25/2022]
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Ip H, Hwang I, Kang J, Kim KP, Jeong J, Chang HM, Ryoo BY, Yoo C. Prognostic implication of inflammation-based scores in patients with metastatic pancreatic cancer (mPC) treated with first-line nab-paclitaxel plus gemcitabine (AG). Ann Oncol 2018. [DOI: 10.1093/annonc/mdy432.045] [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: 11/14/2022] Open
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18
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Lee K, Hwang I, Kang J, Yoo C, Kim KP, Jeong J, Chang HM, Ryoo BY. Efficacy and safety of nab-paclitaxel plus gemcitabine (AG) vs. FOLFIRINOX (FFX) as first line chemotherapy for metastatic pancreatic cancer (mPC): Retrospective analysis. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy282.108] [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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Jang J, Hillinger S, Haberecker M, Curioni Fontecedro A, Janker F, Gil-Bazo I, Hwang I, Kwon K, Weder W, Soltermann A, Jungraithmayr W. P2.01-51 Study of CD26/DPP4 Expression in a Large Series of Non-Small Cell Lung Cancer Patients. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1105] [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: 10/28/2022]
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Hwang I, Kang J, Yoo C, Jeong J, Kim KP, Chang HM, Ryoo BY. Prognostic implication of inflammation-based scores in patients with metastatic pancreatic cancer (mPC) treated with first-line nab-paclitaxel plus gemcitabine (AG). Ann Oncol 2018. [DOI: 10.1093/annonc/mdy282.112] [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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21
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Yang Y, Kim KY, Hwang I, Yim T, Do W, Kim MJ, Lee S, Jung HY, Choi JY, Park SH, Kim YL, Kim CD, Cho JH. Cystatin C-Based Equation for Predicting the Glomerular Filtration Rate in Kidney Transplant Recipients. Transplant Proc 2018; 49:1018-1022. [PMID: 28583518 DOI: 10.1016/j.transproceed.2017.03.050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BACKGROUND Precise monitoring of the glomerular filtration rate (GFR) is needed to estimate the allograft function in kidney transplant recipients (KTRs). The GFR is widely estimated with the use of formulas based on serum cystatin C (SCys) and serum creatinine (SCr) levels. We compared the efficacy of SCys-based equations with that of SCr-based equations to predict the allograft function. METHODS We calculated the Modification of Diet in Renal Disease (MDRD), Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI Cr), CKD-EPI creatinine-cystatin C (CKD-EPI Cr/Cys), and CKD-EPI cystatin C (CKD-EP ICys) equations in 70 KTRs. The measured GFR (mGFR) was defined as the GFR estimated by technetium-99m-diethylene triamine pentaacetic acid (99mTc-DTPA) clearance. The accuracy and precision of the equations were compared with the mGFR. The performance characteristics of SCr and SCys were analyzed with the use of receiver operating characteristic (ROC) curves to ascertain the sensitivity and specificity at the cutoff value of <45 mL/min/1.73 m2 DTPA. RESULTS Overall, MDRD and CKD-EPICys did not show significant differences from mGFR (P = .05 and P = .077, respectively), whereas CKD-EPI Cr and CKD-EPI Cr/Cys significantly underestimated mGFR (P < .001 and P = .005, respectively). In the subgroup of patients with mGFR <45 mL/min/1.73 m2, CKD-EPI Cys showed little bias (P = .122), whereas MDRD significantly underestimated mGFR (P = .037). The area under the ROC curve for predicting mGFR <45 mL/min/1.73 m2 was 0.80 for SCys, which was better than that for SCr at 0.763. CONCLUSIONS Cystatin C-based equations showed better predictive performance of the allograft function than creatinine-based equations for the KTRs, including patients with lower GFR. Cystatin C level might be a good alternate measurement to monitor the allograft function.
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Affiliation(s)
- Y Yang
- Department of Internal Medicine, Kyungpook National University Hospital, Daegu, Korea
| | - K Y Kim
- Department of Internal Medicine, Kyungpook National University Hospital, Daegu, Korea
| | - I Hwang
- Department of Internal Medicine, Kyungpook National University Hospital, Daegu, Korea
| | - T Yim
- Department of Internal Medicine, Kyungpook National University Hospital, Daegu, Korea
| | - W Do
- Department of Internal Medicine, Kyungpook National University Hospital, Daegu, Korea
| | - M J Kim
- Department of Internal Medicine, Kyungpook National University Hospital, Daegu, Korea
| | - S Lee
- Department of Internal Medicine, Kyungpook National University Hospital, Daegu, Korea
| | - H-Y Jung
- Department of Internal Medicine, Kyungpook National University Hospital, Daegu, Korea
| | - J-Y Choi
- Department of Internal Medicine, Kyungpook National University Hospital, Daegu, Korea
| | - S-H Park
- Department of Internal Medicine, Kyungpook National University Hospital, Daegu, Korea
| | - Y-L Kim
- Department of Internal Medicine, Kyungpook National University Hospital, Daegu, Korea
| | - C-D Kim
- Department of Internal Medicine, Kyungpook National University Hospital, Daegu, Korea
| | - J-H Cho
- Department of Internal Medicine, Kyungpook National University Hospital, Daegu, Korea.
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Auerbach RP, Alonso J, Axinn WG, Cuijpers P, Ebert DD, Green JG, Hwang I, Kessler RC, Liu H, Mortier P, Nock MK, Pinder-Amaker S, Sampson NA, Aguilar-Gaxiola S, Al-Hamzawi A, Andrade LH, Benjet C, Caldas-de-Almeida JM, Demyttenaere K, Florescu S, de Girolamo G, Gureje O, Haro JM, Karam EG, Kiejna A, Kovess-Masfety V, Lee S, McGrath JJ, O'Neill S, Pennell BE, Scott K, Ten Have M, Torres Y, Zaslavsky AM, Zarkov Z, Bruffaerts R. Mental disorders among college students in the World Health Organization World Mental Health Surveys - CORRIGENDUM. Psychol Med 2017; 47:2737. [PMID: 28462760 DOI: 10.1017/s0033291717001039] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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23
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Bae YI, Hwang I, Kim I, Kim K, Park JW. Force Measurement for the Interaction between Cucurbit[7]uril and Mica and Self-Assembled Monolayer in the Presence of Zn 2+ Studied with Atomic Force Microscopy. Langmuir 2017; 33:11884-11892. [PMID: 28946747 DOI: 10.1021/acs.langmuir.7b02168] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Force spectroscopy with atomic force microscopy (AFM) revealed that cucurbit[7]uril (CB[7]) strongly binds to a mica surface in the presence of cations. Indeed, Zn2+ was observed to facilitate the self-assembly of CB[7] on the mica surface, whereas monocations, such as Na+, were less effective. The progression of the process and the cation-mediated self-assembled monolayer were characterized using AFM, and the observed height of the layer agrees well with the calculated CB[7] value (9.1 Å). We utilized force-based AFM to further study the interaction of CB[7] with guest molecules. To this end, CB[7] was immobilized on a glass substrate, and aminomethylferrocene (am-Fc) was conjugated onto an AFM tip. The single-molecule interaction between CB[7] and am-Fc was monitored by collecting the unbinding force curves. The force histogram showed single ruptures and a unimodal distribution, and the most probable unbinding force value was 101 pN in deionized water and 86 pN in phosphate-buffered saline buffer. The results indicate that the unbinding force was larger than that of streptavidin-biotin measured under the same conditions, whereas the dissociation constant was smaller by 1 order of magnitude (0.012 s-1 vs 0.13 s-1). Furthermore, a high-resolution adhesion force map showed a part of the CB[7] cavities on the surface.
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Affiliation(s)
- Young-In Bae
- Department of Chemistry, ‡Center for Self-Assembly and Complexity (CSC), Institute for Basic Science (IBS), and §Division of Advanced Materials Science, Pohang University of Science and Technology , 77 Cheongam-Ro, Nam-Gu, Pohang 37673, Korea
| | - Ilha Hwang
- Department of Chemistry, ‡Center for Self-Assembly and Complexity (CSC), Institute for Basic Science (IBS), and §Division of Advanced Materials Science, Pohang University of Science and Technology , 77 Cheongam-Ro, Nam-Gu, Pohang 37673, Korea
| | - Ikjin Kim
- Department of Chemistry, ‡Center for Self-Assembly and Complexity (CSC), Institute for Basic Science (IBS), and §Division of Advanced Materials Science, Pohang University of Science and Technology , 77 Cheongam-Ro, Nam-Gu, Pohang 37673, Korea
| | - Kimoon Kim
- Department of Chemistry, ‡Center for Self-Assembly and Complexity (CSC), Institute for Basic Science (IBS), and §Division of Advanced Materials Science, Pohang University of Science and Technology , 77 Cheongam-Ro, Nam-Gu, Pohang 37673, Korea
| | - Joon Won Park
- Department of Chemistry, ‡Center for Self-Assembly and Complexity (CSC), Institute for Basic Science (IBS), and §Division of Advanced Materials Science, Pohang University of Science and Technology , 77 Cheongam-Ro, Nam-Gu, Pohang 37673, Korea
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Jang Y, Jang M, Kim H, Lee SJ, Jin E, Koo JY, Hwang IC, Kim Y, Ko YH, Hwang I, Oh JH, Kim K. Point-of-Use Detection of Amphetamine-Type Stimulants with Host-Molecule-Functionalized Organic Transistors. Chem 2017. [DOI: 10.1016/j.chempr.2017.08.015] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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25
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Kim D, Choi JK, Kim SM, Hwang I, Koo J, Choi S, Cho SH, Kim K, Lee IS. Confined Nucleation and Growth of PdO Nanocrystals in a Seed-Free Solution inside Hollow Nanoreactor. ACS Appl Mater Interfaces 2017; 9:29992-30001. [PMID: 28841005 DOI: 10.1021/acsami.7b08856] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
This paper reports a novel and adaptable hollow nanoreactor system containing a solution of cucurbituril (CB) inside a silica nanoparticle (CB@h-SiO2) which enables the nucleation and formation of nanocrystals (NCs) to be confined at the seed-free interior solution inside the cavity. The above nanospace confinement strategy restricted the volume of medium available for NC formation to the solution inside the cavity to a few tens of nanometers in size and allowed homogeneous NC nucleation to be examined. Harboring of CB@h-SiO2 in a Pd2+ complex solution confined the nucleation and formation of PdO NCs to the well-isolated nanosized cavity protected by the silica nanoshell, allowing the convoluted formation of clustered PdO NCs to be thoroughly examined. The corresponding temporal investigation indicated that PdO NC clusters evolved via a distinct pathway combining dendritic growth on early nucleated seed NCs and attachment of small intermediate clusters. In addition, the explored strategy was used to fabricate a recyclable nanocatalyst system for selective catalytic oxidation of cinammyl alcohols, featuring a cavity-included Fe3O4/PdO nanocomposite.
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Affiliation(s)
- Daun Kim
- National Creative Research Initiative Center for Nanospace-Confined Chemical Reactions, Pohang University of Science and Technology (POSTECH) , Pohang, Gyeongbuk 37673, Korea
- Department of Chemistry, Pohang University of Science and Technology (POSTECH) , Gyeongbuk 37673, Korea
| | - Jung Kyu Choi
- National Creative Research Initiative Center for Nanospace-Confined Chemical Reactions, Pohang University of Science and Technology (POSTECH) , Pohang, Gyeongbuk 37673, Korea
- Department of Chemistry, Pohang University of Science and Technology (POSTECH) , Gyeongbuk 37673, Korea
| | - Soo Min Kim
- Department of Chemistry, Pohang University of Science and Technology (POSTECH) , Gyeongbuk 37673, Korea
| | - Ilha Hwang
- Center for Self-Assembly and Complexity, Institute for Basic Science , Pohang 37673, Korea
| | - Jaehyoung Koo
- Department of Chemistry, Pohang University of Science and Technology (POSTECH) , Gyeongbuk 37673, Korea
- Center for Self-Assembly and Complexity, Institute for Basic Science , Pohang 37673, Korea
| | - Seoyoung Choi
- Department of Chemistry, Pohang University of Science and Technology (POSTECH) , Gyeongbuk 37673, Korea
| | - Seung Hwan Cho
- Department of Chemistry, Pohang University of Science and Technology (POSTECH) , Gyeongbuk 37673, Korea
| | - Kimoon Kim
- Department of Chemistry, Pohang University of Science and Technology (POSTECH) , Gyeongbuk 37673, Korea
- Center for Self-Assembly and Complexity, Institute for Basic Science , Pohang 37673, Korea
| | - In Su Lee
- National Creative Research Initiative Center for Nanospace-Confined Chemical Reactions, Pohang University of Science and Technology (POSTECH) , Pohang, Gyeongbuk 37673, Korea
- Department of Chemistry, Pohang University of Science and Technology (POSTECH) , Gyeongbuk 37673, Korea
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Park K, Hwang I, Ryoo HM, Heo M. PD-L1 expression in resected colorectal adenocarcinomas is associated with micrometastais. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx393.123] [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: 11/14/2022] Open
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Kim S, Chang J, Kim K, Hwang I, Park S. STATIN USE AND THE RISK OF HEPATOCELLULAR CARCINOMA: A POPULATION-BASED PROSPECTIVE COHORT STUDY. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.3231] [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: 11/12/2022] Open
Affiliation(s)
- S. Kim
- Seoul National University College of Medicine, Seoul, Korea (the Republic of),
- Family Medicine, Seoul National University Hosipital, Seoul, Korea (the Republic of),
| | - J. Chang
- Seoul National University College of Medicine, Seoul, Korea (the Republic of),
| | - K. Kim
- Seoul National University College of Medicine, Seoul, Korea (the Republic of),
| | - I. Hwang
- Gachon University Gil Medical Center, Incheon, Korea (the Republic of)
| | - S. Park
- Seoul National University College of Medicine, Seoul, Korea (the Republic of),
- Family Medicine, Seoul National University Hosipital, Seoul, Korea (the Republic of),
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Wang W, Yang YB, Ma XY, Yu XL, Hwang I. Changes in calpain and caspase gene expression at the mRNA level during bovine muscle satellite cell myogenesis and the correlation between the cell model and the muscle tissue. Russ J Bioorg Chem 2017. [DOI: 10.1134/s1068162017030177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Hwang M, Go Y, Park JH, Shin SK, Song SE, Oh BC, Im SS, Hwang I, Jeon YH, Lee IK, Seino S, Song DK. Epac2a-null mice exhibit obesity-prone nature more susceptible to leptin resistance. Int J Obes (Lond) 2016; 41:279-288. [PMID: 27867203 PMCID: PMC5309344 DOI: 10.1038/ijo.2016.208] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 10/07/2016] [Accepted: 10/30/2016] [Indexed: 02/08/2023]
Abstract
BACKGROUND The exchange protein directly activated by cAMP (Epac), which is primarily involved in cAMP signaling, has been known to be essential for controlling body energy metabolism. Epac has two isoforms: Epac1 and Epac2. The function of Epac1 on obesity was unveiled using Epac1 knockout (KO) mice. However, the role of Epac2 in obesity remains unclear. METHODS To evaluate the role of Epac2 in obesity, we used Epac2a KO mice, which is dominantly expressed in neurons and endocrine tissues. Physiological factors related to obesity were analyzed: body weight, fat mass, food intake, plasma leptin and adiponectin levels, energy expenditure, glucose tolerance, and insulin and leptin resistance. To determine the mechanism of Epac2a, mice received exogenous leptin and then hypothalamic leptin signaling was analyzed. RESULTS Epac2a KO mice appeared to have normal glucose tolerance and insulin sensitivity until 12 weeks of age, but an early onset increase of plasma leptin levels and decrease of plasma adiponectin levels compared with wild-type mice. Acute leptin injection revealed impaired hypothalamic leptin signaling in KO mice. Consistently, KO mice fed a high-fat diet (HFD) were significantly obese, presenting greater food intake and lower energy expenditure. HFD-fed KO mice were also characterized by greater impairment of hypothalamic leptin signaling and by weaker leptin-induced decrease in food consumption compared with HFD-fed wild-type mice. In wild-type mice, acute exogenous leptin injection or chronic HFD feeding tended to induce hypothalamic Epac2a expression. CONCLUSIONS Considering that HFD is an inducer of hypothalamic leptin resistance and that Epac2a functions in pancreatic beta cells during demands of greater work load, hypothalamic Epac2a may have a role in facilitating leptin signaling, at least in response to higher metabolic demands. Thus, our data indicate that Epac2a is critical for preventing obesity and thus Epac2a activators may be used to manage obesity and obesity-mediated metabolic disorders.
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Affiliation(s)
- M Hwang
- Department of Physiology and Obesity-mediated Disease Research Center, Keimyung University School of Medicine, Daegu, Korea
| | - Y Go
- Department of Internal Medicine, Kyungpook National University School of Medicine, Daegu, Korea
| | - J-H Park
- Department of Physiology and Obesity-mediated Disease Research Center, Keimyung University School of Medicine, Daegu, Korea
| | - S-K Shin
- Department of Physiology and Obesity-mediated Disease Research Center, Keimyung University School of Medicine, Daegu, Korea
| | - S E Song
- Department of Physiology and Obesity-mediated Disease Research Center, Keimyung University School of Medicine, Daegu, Korea
| | - B-C Oh
- Laboratory of Molecular and Cellular Biochemistry, Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon, Korea
| | - S-S Im
- Department of Physiology and Obesity-mediated Disease Research Center, Keimyung University School of Medicine, Daegu, Korea
| | - I Hwang
- Department of Physiology and Obesity-mediated Disease Research Center, Keimyung University School of Medicine, Daegu, Korea
| | - Y H Jeon
- Department of Internal Medicine, Kyungpook National University School of Medicine, Daegu, Korea
| | - I-K Lee
- Department of Internal Medicine, Kyungpook National University School of Medicine, Daegu, Korea
| | - S Seino
- Division of Molecular and Metabolic Medicine, Department of Physiology and Cell Biology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - D-K Song
- Department of Physiology and Obesity-mediated Disease Research Center, Keimyung University School of Medicine, Daegu, Korea
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Scott KM, Lim CCW, Hwang I, Adamowski T, Al-Hamzawi A, Bromet E, Bunting B, Ferrand MP, Florescu S, Gureje O, Hinkov H, Hu C, Karam E, Lee S, Posada-Villa J, Stein D, Tachimori H, Viana MC, Xavier M, Kessler RC. The cross-national epidemiology of DSM-IV intermittent explosive disorder. Psychol Med 2016; 46:3161-3172. [PMID: 27572872 PMCID: PMC5206971 DOI: 10.1017/s0033291716001859] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND This is the first cross-national study of intermittent explosive disorder (IED). METHOD A total of 17 face-to-face cross-sectional household surveys of adults were conducted in 16 countries (n = 88 063) as part of the World Mental Health Surveys initiative. The World Health Organization Composite International Diagnostic Interview (CIDI 3.0) assessed DSM-IV IED, using a conservative definition. RESULTS Lifetime prevalence of IED ranged across countries from 0.1 to 2.7% with a weighted average of 0.8%; 0.4 and 0.3% met criteria for 12-month and 30-day prevalence, respectively. Sociodemographic correlates of lifetime risk of IED were being male, young, unemployed, divorced or separated, and having less education. The median age of onset of IED was 17 years with an interquartile range across countries of 13-23 years. The vast majority (81.7%) of those with lifetime IED met criteria for at least one other lifetime disorder; co-morbidity was highest with alcohol abuse and depression. Of those with 12-month IED, 39% reported severe impairment in at least one domain, most commonly social or relationship functioning. Prior traumatic experiences involving physical (non-combat) or sexual violence were associated with increased risk of IED onset. CONCLUSIONS Conservatively defined, IED is a low prevalence disorder but this belies the true societal costs of IED in terms of the effects of explosive anger attacks on families and relationships. IED is more common among males, the young, the socially disadvantaged and among those with prior exposure to violence, especially in childhood.
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Affiliation(s)
- K. M. Scott
- Department of Psychological Medicine, University of Otago, PO Box 56, Dunedin 9054, New Zealand
| | - C. C. W. Lim
- Department of Psychological Medicine, University of Otago, PO Box 56, Dunedin 9054, New Zealand
| | - I. Hwang
- Department of Health Care Policy, Harvard University Medical School, 180 Longwood Avenue, Boston, MA 02115, USA
| | - T. Adamowski
- Medical University of Wroclaw, L. Pasteur Str. 10, 50-367 Wroclaw, Poland
| | - A. Al-Hamzawi
- Department of Psychiatry, College of Medicine, Qadisia University, Diwaniya 00964, Iraq
| | - E. Bromet
- Department of Psychiatry, State University of New York at Stony Brook, Putnam Hall – South Campus, Stony Brook, NY 11794-8790, USA
| | - B. Bunting
- University of Ulster, College Avenue, Londonderry BT48 7JL, UK
| | - M. P. Ferrand
- Universidad Peruana Cayetano Heredia, Facultad de Salud Pública y Administración, Honorio Delgado, Lima, Peru
| | - S. Florescu
- Health Services and Research Evaluation Center, National School of Public Health Management and Professional Development, 31 Vaselor Street, Bucharest, 021253, Romania
| | - O. Gureje
- Department of Psychiatry, University College Hospital, PMB 5116, Ibadan, Nigeria
| | - H. Hinkov
- National Center for Public Health Protection, 15 Acad. Ivan Ev. Geshov blvd, 1431 Sofia, Bulgaria
| | - C. Hu
- Shenzhen Institute of Mental Health and Shenzhen Kangning Hospital, 13-15/F, Block B, No. 2019 Buxin Road, Luohu District, No. 1080 Cuizu Road, Luohu District, 518020, Guangdong Province, People's Republic of China
| | - E. Karam
- St. George Hospital University Medical Center, Balamand University, Faculty of Medicine, Institute for Development, Research, Advocacy & Applied Care (IDRAAC), Medical Institute for Neuropsychological Disorders (MIND), Beirut, Lebanon
- Department of Psychiatry and Clinical Psychology, Institute for Development, Research Advocacy and Applied Care (IDRAAC), St. George Hospital University Medical Center, Beirut, Ashrafieh 166378, Lebanon
| | - S. Lee
- Department of Psychiatry, The Chinese University of Hong Kong, Flat 7A, Block E, Staff Quarters, Prince of Wales Hospital, Shatin, Hong Kong SAR
| | - J. Posada-Villa
- Universidad Colegio Mayor de Cundinamarca, Cra 7 No. 119-14 Cons. 511, Bogotá D.C., Colombia
| | - D. Stein
- Department of Psychiatry and Mental Health, University of Cape Town, Private Bag X3, Rondebosch 7701, Cape Town, South Africa
| | - H. Tachimori
- National Institute of Mental Health, National Center of Neurology and Psychiatry, 4-1-1 Ogawa-Higashi, Kodaira, Tokyo 187-8553, Japan
| | - M. C. Viana
- Department of Social Medicine, Federal University of Espírito Santo (UFES), Rua Dr Eurico de Aguiar 888/705, Vitoria, ES 29055-280, Brazil
| | - M. Xavier
- Chronic Diseases Research Center (CEDOC) and Department of Mental Health, Faculdade de Ciências Médicas, Universidade Nova de Lisboa, Campo dos Mártires da Pátria, 130, 1169-056 Lisbon, Portugal
| | - R. C. Kessler
- Department of Health Care Policy, Harvard University Medical School, 180 Longwood Avenue, Boston, MA 02115, USA
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Auerbach RP, Alonso J, Axinn WG, Cuijpers P, Ebert DD, Green JG, Hwang I, Kessler RC, Liu H, Mortier P, Nock MK, Pinder-Amaker S, Sampson NA, Aguilar-Gaxiola S, Al-Hamzawi A, Andrade LH, Benjet C, Caldas-de-Almeida JM, Demyttenaere K, Florescu S, de Girolamo G, Gureje O, Haro JM, Karam EG, Kiejna A, Kovess-Masfety V, Lee S, McGrath JJ, O'Neill S, Pennell BE, Scott K, Ten Have M, Torres Y, Zaslavsky AM, Zarkov Z, Bruffaerts R. Mental disorders among college students in the World Health Organization World Mental Health Surveys. Psychol Med 2016; 46:2955-2970. [PMID: 27484622 DOI: 10.1017/s003329176001665] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
BACKGROUND Although mental disorders are significant predictors of educational attainment throughout the entire educational career, most research on mental disorders among students has focused on the primary and secondary school years. METHOD The World Health Organization World Mental Health Surveys were used to examine the associations of mental disorders with college entry and attrition by comparing college students (n = 1572) and non-students in the same age range (18-22 years; n = 4178), including non-students who recently left college without graduating (n = 702) based on surveys in 21 countries (four low/lower-middle income, five upper-middle-income, one lower-middle or upper-middle at the times of two different surveys, and 11 high income). Lifetime and 12-month prevalence and age-of-onset of DSM-IV anxiety, mood, behavioral and substance disorders were assessed with the Composite International Diagnostic Interview (CIDI). RESULTS One-fifth (20.3%) of college students had 12-month DSM-IV/CIDI disorders; 83.1% of these cases had pre-matriculation onsets. Disorders with pre-matriculation onsets were more important than those with post-matriculation onsets in predicting subsequent college attrition, with substance disorders and, among women, major depression the most important such disorders. Only 16.4% of students with 12-month disorders received any 12-month healthcare treatment for their mental disorders. CONCLUSIONS Mental disorders are common among college students, have onsets that mostly occur prior to college entry, in the case of pre-matriculation disorders are associated with college attrition, and are typically untreated. Detection and effective treatment of these disorders early in the college career might reduce attrition and improve educational and psychosocial functioning.
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Affiliation(s)
- R P Auerbach
- Department of Psychiatry,Harvard Medical School,Boston, MA,USA
| | - J Alonso
- Institut Hospital del Mar d'Investigacions Mèdiques (IMIM),Barcelona,Spain
| | - W G Axinn
- Department of Sociology,Population Studies Center, Survey Research Center, Institute for Social Research, University of Michigan,Ann Arbor, MI,USA
| | - P Cuijpers
- Department of Clinical, Neuro, and Developmental Psychology,Vrije Universiteit Amsterdam,Amsterdam,The Netherlands
| | - D D Ebert
- Department of Psychology, Clinical Psychology and Psychotherapy,Friedrich-Alexander University Nuremberg-Erlangen,Erlangen,Germany
| | - J G Green
- School of Education, Boston University,Boston, MA,USA
| | - I Hwang
- Department of Health Care Policy,Harvard Medical School,Boston, MA,USA
| | - R C Kessler
- Department of Health Care Policy,Harvard Medical School,Boston, MA,USA
| | - H Liu
- Department of Epidemiology,Harvard T.H. Chan School of Public Health,Boston, MA,USA
| | - P Mortier
- Research Group Psychiatry,Department of Neurosciences,KU Leuven University,Leuven,Belgium
| | - M K Nock
- Department of Psychology,Harvard University,Cambridge, MA,USA
| | - S Pinder-Amaker
- Department of Psychiatry,Harvard Medical School,Boston, MA,USA
| | - N A Sampson
- Department of Health Care Policy,Harvard Medical School,Boston, MA,USA
| | - S Aguilar-Gaxiola
- University of California Davis Center for Reducing Health Disparities,School of Medicine,Sacramento, CA,USA
| | - A Al-Hamzawi
- College of Medicine, Al-Qadisiya University,Diwania Governorate,Iraq
| | - L H Andrade
- Section of Psychiatric Epidemiology - LIM 23,Institute of Psychiatry, University of São Paulo Medical School,São Paulo,Brazil
| | - C Benjet
- Department of Epidemiologic and Psychosocial Research,National Institute of Psychiatry Ramón de la Fuente Muñiz,Mexico City,Mexico
| | - J M Caldas-de-Almeida
- Chronic Diseases Research Center (CEDOC) and Department of Mental Health,Faculdade de Ciências Médicas,Universidade Nova de Lisboa,Lisbon,Portugal
| | - K Demyttenaere
- Department of Psychiatry,University Hospital Gasthuisberg, Katholieke Universiteit Leuven,Leuven,Belgium
| | - S Florescu
- National School of Public Health, Management and Professional Development,Bucharest,Romania
| | - G de Girolamo
- IRCCS St John of God Clinical Research Centre,Brescia,Italy
| | - O Gureje
- Department of Psychiatry,University College Hospital,Ibadan,Nigeria
| | - J M Haro
- Parc Sanitari Sant Joan de Déu, CIBERSAM, Universitat de Barcelona,Barcelona,Spain
| | - E G Karam
- Department of Psychiatry and Clinical Psychology,Faculty of Medicine,Balamand University,Beirut,Lebanon
| | - A Kiejna
- Department of Psychiatry,Wroclaw Medical University,Wroclaw,Poland
| | - V Kovess-Masfety
- Ecole des Hautes Etudes en Santé Publique (EHESP), EA 4057 Paris Descartes University,Paris,France
| | - S Lee
- Department of Psychiatry,Chinese University of Hong Kong,Tai Po,Hong Kong
| | - J J McGrath
- Queensland Centre for Mental Health Research, The Park Centre for Mental Health,Wacol,Queensland,Australia
| | - S O'Neill
- School of Psychology, University of Ulster,Londonderry,UK
| | - B-E Pennell
- Survey Research Center, Institute for Social Research, University of Michigan,Ann Arbor, MI,USA
| | - K Scott
- Department of Psychological Medicine,University of Otago,Dunedin,Otago,New Zealand
| | - M Ten Have
- Trimbos-Instituut, Netherlands Institute of Mental Health and Addiction,Utrecht,the Netherlands
| | - Y Torres
- Center for Excellence on Research in Mental Health, CES University,Medellín,Colombia
| | - A M Zaslavsky
- Department of Health Care Policy,Harvard Medical School,Boston, MA,USA
| | - Z Zarkov
- Department Mental Health,National Center of Public Health and Analyses,Sofia,Bulgaria
| | - R Bruffaerts
- Universitair Psychiatrisch Centrum - Katholieke Universiteit Leuven (UPC-KUL),Campus Gasthuisberg,Leuven,Belgium
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Lee SY, Kim EJ, Kim JS, Hwang I, Chung TD. Multiplexed and spatiotemporal measurements of glutamate secreted by neurons and bacteria. Chem Commun (Camb) 2016; 52:11854-11856. [PMID: 27722537 DOI: 10.1039/c6cc04192b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
By applying an in vivo biotinylation platform, glutamate-sensing protein can be easily immobilized on streptavidin-functionalized magnetic microbeads, which expands the detection modality for the spatiotemporal measurements of glutamate secreted by adherent neuronal cells and suspension microbial cells using fluorescence microscopy and microplate photometers.
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Affiliation(s)
- S Y Lee
- Department of Chemistry, Seoul National University, Seoul, 08826, Korea.
| | - E J Kim
- Department of Chemistry, Seoul National University, Seoul, 08826, Korea.
| | - J S Kim
- Department of Chemistry, Seoul National University, Seoul, 08826, Korea.
| | - I Hwang
- Department of Chemistry, Seoul National University, Seoul, 08826, Korea.
| | - T D Chung
- Department of Chemistry, Seoul National University, Seoul, 08826, Korea. and Advanced Institutes of Convergence Technology, Suwon-Si, Gyeonggi-do 16229, Korea
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Hwang M, Park J, Ko A, Kho Y, Hwang I. The association with human biomonitoring and the sources of cadmium exposure among the general Korean adults. Toxicol Lett 2016. [DOI: 10.1016/j.toxlet.2016.06.1751] [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: 10/21/2022]
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Hwang I, Sohn CH, Kang KM, Jeon BS, Kim HJ, Choi SH, Yun TJ, Kim JH. Differentiation of Parkinsonism-Predominant Multiple System Atrophy from Idiopathic Parkinson Disease Using 3T Susceptibility-Weighted MR Imaging, Focusing on Putaminal Change and Lesion Asymmetry. AJNR Am J Neuroradiol 2015; 36:2227-34. [PMID: 26338919 DOI: 10.3174/ajnr.a4442] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Accepted: 04/23/2015] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Asymmetric presentation of clinical feature in parkinsonism is common, but correlatable radiologic feature is not clearly defined. Our aim was to evaluate 3T susceptibility-weighted imaging findings for differentiating parkinsonism-predominant multiple system atrophy from idiopathic Parkinson disease, focusing on putaminal changes and lesion asymmetry. MATERIALS AND METHODS This retrospective cohort study included 27 patients with parkinsonism-predominant multiple system atrophy and 50 patients with idiopathic Parkinson disease diagnosed clinically. Twenty-seven age-matched subjects without evidence of movement disorders who underwent SWI were included as the control group. A consensus was reached by 2 radiologists who visually assessed SWI for the presence of putaminal atrophy and marked signal hypointensity on each side of the posterolateral putamen. We also quantitatively measured putaminal width and phase-shift values. RESULTS The mean disease duration was 4.7 years for the patients with parkinsonism-predominant multiple system atrophy and 7.8 years for the patients with idiopathic Parkinson disease. In the patients with parkinsonism-predominant multiple system atrophy, putaminal atrophy was frequently observed (14/27, 51.9%) and was most commonly found in the unilateral putamen (13/14). Marked signal hypointensity was observed in 12 patients with parkinsonism-predominant multiple system atrophy (44.4%). No patients with idiopathic Parkinson disease or healthy controls showed putaminal atrophy or marked signal hypointensity. Quantitatively measured putaminal width, phase-shift values, and the ratio of mean phase-shift values for the dominant and nondominant sides were significantly different between the parkinsonism-predominant multiple system atrophy group and the idiopathic Parkinson disease and healthy control groups (P < .001). CONCLUSIONS 3T SWI can visualize putaminal atrophy and marked signal hypointensity in patients with parkinsonism-predominant multiple system atrophy with high specificity. Furthermore, it clearly demonstrates the dominant side of putaminal changes, which correlate with the contralateral symptomatic side of patients.
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Affiliation(s)
- I Hwang
- From the Departments of Radiology (I.H., C.-H.S., K.M.K, S.H.C., T.J.Y., J.-h.K.)
| | - C-H Sohn
- From the Departments of Radiology (I.H., C.-H.S., K.M.K, S.H.C., T.J.Y., J.-h.K.) Department of Radiology (C.-H.S.), Seoul National University College of Medicine, Seoul, Korea Institute of Radiation Medicine (C.-H.S.), Seoul National University Medical Research Center, Seoul, Korea.
| | - K M Kang
- From the Departments of Radiology (I.H., C.-H.S., K.M.K, S.H.C., T.J.Y., J.-h.K.)
| | - B S Jeon
- Neurology (B.S.J., H.-J.K.), Seoul National University Hospital, Seoul, Korea
| | - H-J Kim
- Neurology (B.S.J., H.-J.K.), Seoul National University Hospital, Seoul, Korea
| | - S H Choi
- From the Departments of Radiology (I.H., C.-H.S., K.M.K, S.H.C., T.J.Y., J.-h.K.)
| | - T J Yun
- From the Departments of Radiology (I.H., C.-H.S., K.M.K, S.H.C., T.J.Y., J.-h.K.)
| | - J-H Kim
- From the Departments of Radiology (I.H., C.-H.S., K.M.K, S.H.C., T.J.Y., J.-h.K.)
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Abstract
Over the past decades, numerous efforts have been devoted to synthesizing nanostructured materials with specific morphology because their size and shape play an important role in determining their functions. Self-assembly using weak and reversible interactions or bonds has provided synthetic routes toward various nanostructures because it allows a "self-checking" and "self-error-correcting" process under thermodynamic control. By contrast, the use of irreversible covalent bonds, despite the potential to generate more robust structures, has been disfavored in the synthesis of well-defined nanomaterials largely due to the lack of such self-error-correcting mechanisms. To date, the use of irreversible bonds is largely limited to covalent fixation of preorganized building blocks on a template, which, though capable of producing shape-persistent and robust nanostructured materials, often requires a laborious and time-consuming multistep processes. Constructing well-defined nanostructures by self-assembly using irreversible covalent bonds without help of templates or preorganization of components remains a challenge. This Account describes our recent discoveries and progress in self-assembly of nanostructured materials through strong, practically irreversible covalent bond formation and their applications in various areas including drug delivery, anticancer therapy, and heterogeneous catalysis. The key to the success of this approach is the use of rationally designed building blocks possessing multiple in-plane reactive groups at the periphery. These blocks can then successfully grow into flat oligomeric patches through irreversible covalent bond formation without the aid of preorganization or templates. Further growth of the patches with or without curvature generation drives the system to the formation of polymer nanocapsules, two-dimensional (2D) polymer films, and toroidal nanotubular microrings. Remarkably, the final morphology can be specified by a few simple parameters: the reaction medium, bending rigidity of the system, and orientation of the reactive groups. Theoretical studies support the spontaneous formation of such nanostructured materials in terms of energetics and successfully predict or explain their size distributions. Although the lack of self-error-correcting mechanisms results in defect sites in these nanostructures, the high efficiency and relative simplicity of our novel approach demonstrates the potential power of using irreversible covalent bonds to generate a diverse range of shape-persistent and robust nanostructures that is likely to enrich the repertoire of self-assembled nanomaterials.
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Affiliation(s)
- Kangkyun Baek
- Center for Self-assembly and Complexity
(CSC), Institute for Basic Science (IBS), Pohang 790-784, Republic of Korea
| | - Ilha Hwang
- Center for Self-assembly and Complexity
(CSC), Institute for Basic Science (IBS), Pohang 790-784, Republic of Korea
| | - Indranil Roy
- Department of Chemistry, Pohang University of Science and Technology, Pohang 790-784, Republic of Korea
| | - Dinesh Shetty
- Center for Self-assembly and Complexity
(CSC), Institute for Basic Science (IBS), Pohang 790-784, Republic of Korea
| | - Kimoon Kim
- Center for Self-assembly and Complexity
(CSC), Institute for Basic Science (IBS), Pohang 790-784, Republic of Korea
- Department of Chemistry, Pohang University of Science and Technology, Pohang 790-784, Republic of Korea
- Division of Advanced Materials
Science, Pohang University of Science and Technology, Pohang 790-784, Republic of Korea
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Abstract
The purpose of this study was to evaluate the expression of acid-sensing ion channels (ASICs) in the capsule and synovial fluid of patients with frozen shoulder. Capsular tissue and synovial fluid were obtained from 18 patients with idiopathic frozen shoulder (FS group) and 18 patients with instability of the shoulder (control group). The expressions of ASIC1, ASIC2, and ASIC3 in the capsule were determined using the reverse transcriptase-polymerase chain reaction, immunoblot analysis, and immunohistochemistry (IHC). The concentrations in synovial fluid were evaluated using an enzyme-linked immunosorbent assay. The mRNA expression of ASIC1, ASIC2 and ASIC3 in the capsule were significantly increased in the FS group compared with the control group. The protein levels of these three ASICs were also increased. The increased expressions were confirmed by IHC. Of the ASICs, ASIC3 showed the greatest increase in both mRNA and levels of expression compared with the control group. The levels of ASIC1 and ASIC3 in synovial fluid were significantly increased in the FS group. This study suggests that ASICs may play a role as mediators of inflammatory pain and be involved in the pathogenesis of frozen shoulder. Cite this article: Bone Joint J 2015;97-B:824–9.
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Affiliation(s)
- C. H. Cho
- Keimyung University Dongsan Medical Center, 56
Dalseong-ro, Jung-gu, Daegu
700-712, South Korea
| | - Y. M. Lho
- Keimyung University Dongsan Medical Center, 56
Dalseong-ro, Jung-gu, Daegu
700-712, South Korea
| | - E. Ha
- Keimyung University Dongsan Medical Center, 56
Dalseong-ro, Jung-gu, Daegu
700-712, South Korea
| | - I. Hwang
- Keimyung University Dongsan Medical Center, 56
Dalseong-ro, Jung-gu, Daegu
700-712, South Korea
| | - K. S. Song
- Keimyung University Dongsan Medical Center, 56
Dalseong-ro, Jung-gu, Daegu
700-712, South Korea
| | - B. W. Min
- Keimyung University Dongsan Medical Center, 56
Dalseong-ro, Jung-gu, Daegu
700-712, South Korea
| | - K. C. Bae
- Keimyung University Dongsan Medical Center, 56
Dalseong-ro, Jung-gu, Daegu
700-712, South Korea
| | - D. H. Kim
- Keimyung University Dongsan Medical Center, 56
Dalseong-ro, Jung-gu, Daegu
700-712, South Korea
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Shin YJ, Jeon BC, Yang SM, Hwang I, Cho MR, Sando D, Lee SR, Yoon JG, Noh TW. Suppression of creep-regime dynamics in epitaxial ferroelectric BiFeO3 films. Sci Rep 2015; 5:10485. [PMID: 26014521 PMCID: PMC4444839 DOI: 10.1038/srep10485] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [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: 03/20/2015] [Accepted: 04/13/2015] [Indexed: 12/05/2022] Open
Abstract
Switching dynamics of ferroelectric materials are governed by the response of domain walls to applied electric field. In epitaxial ferroelectric films, thermally-activated ‘creep’ motion plays a significant role in domain wall dynamics, and accordingly, detailed understanding of the system’s switching properties requires that this creep motion be taken into account. Despite this importance, few studies have investigated creep motion in ferroelectric films under ac-driven force. Here, we explore ac hysteretic dynamics in epitaxial BiFeO3 thin films, through ferroelectric hysteresis measurements, and stroboscopic piezoresponse force microscopy. We reveal that identically-fabricated BiFeO3 films on SrRuO3 or La0.67Sr0.33MnO3 bottom electrodes exhibit markedly different switching behaviour, with BiFeO3/SrRuO3 presenting essentially creep-free dynamics. This unprecedented result arises from the distinctive spatial inhomogeneities of the internal fields, these being influenced by the bottom electrode’s surface morphology. Our findings further highlight the importance of controlling interface and defect characteristics, to engineer ferroelectric devices with optimised performance.
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Affiliation(s)
- Y J Shin
- 1] Center for Correlated Electron Systems, Institute for Basic Science (IBS), Seoul 151-742, Republic of Korea [2] Department of Physics and Astronomy, Seoul National University (SNU), Seoul 151-742, Republic of Korea
| | - B C Jeon
- 1] Center for Correlated Electron Systems, Institute for Basic Science (IBS), Seoul 151-742, Republic of Korea [2] Department of Physics and Astronomy, Seoul National University (SNU), Seoul 151-742, Republic of Korea
| | - S M Yang
- 1] Center for Correlated Electron Systems, Institute for Basic Science (IBS), Seoul 151-742, Republic of Korea [2] Department of Physics and Astronomy, Seoul National University (SNU), Seoul 151-742, Republic of Korea
| | - I Hwang
- Electronic Materials Research Center, Korea Institute of Science and Technology, Seoul 136-791, Republic of Korea
| | - M R Cho
- Department of Physics and Astronomy, Seoul National University (SNU), Seoul 151-742, Republic of Korea
| | - D Sando
- 1] Center for Correlated Electron Systems, Institute for Basic Science (IBS), Seoul 151-742, Republic of Korea [2] Department of Physics and Astronomy, Seoul National University (SNU), Seoul 151-742, Republic of Korea
| | - S R Lee
- 1] Center for Correlated Electron Systems, Institute for Basic Science (IBS), Seoul 151-742, Republic of Korea [2] Department of Physics and Astronomy, Seoul National University (SNU), Seoul 151-742, Republic of Korea
| | - J-G Yoon
- Department of Physics, University of Suwon, Hawseong, Gyunggi-do 445-743, Republic of Korea
| | - T W Noh
- 1] Center for Correlated Electron Systems, Institute for Basic Science (IBS), Seoul 151-742, Republic of Korea [2] Department of Physics and Astronomy, Seoul National University (SNU), Seoul 151-742, Republic of Korea
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Yoon JH, Lee JM, Woo S, Hwang EJ, Hwang I, Choi W, Han JK, Choi BI. Switching bipolar hepatic radiofrequency ablation using internally cooled wet electrodes: comparison with consecutive monopolar and switching monopolar modes. Br J Radiol 2015; 88:20140468. [PMID: 25873479 DOI: 10.1259/bjr.20140468] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
OBJECTIVE To evaluate whether switching bipolar radiofrequency ablation (SB-RFA) using three internally cooled wet (ICW) electrodes can induce coagulations >5 cm in porcine livers with better efficiency than consecutive monopolar (CM) or switching monopolar (SM) modes. METHODS A total of 60 coagulations were made in 15 in vivo porcine livers using three 17-gauge ICW electrodes and a multichannel radiofrequency (RF) generator. RF energy (approximately 200 W) was applied in CM mode (Group A, n = 20) for 24 min, SM mode for 12 min (Group B, n = 20) or switching bipolar (SB) mode for 12 min (Group C, n = 20) in in vivo porcine livers. Thereafter, the delivered RFA energy, as well as the shape and dimension of coagulations were compared among the groups. RESULTS Spherical- or oval-shaped ablations were created in 30% (6/20), 85% (17/20) and 90% (18/20) of coagulations in the CM, SM and SB groups, respectively (p = 0.003). SB-RFA created ablations >5 cm in minimum diameter (Dmin) in 65% (13/20) of porcine livers, whereas SM- or CM-RFA created ablations >5 cm in only 25% (5/20) and 20% (4/20) of porcine livers, respectively (p = 0.03). The mean Dmin of coagulations was significantly larger in Group C than in Groups A and B (5.1 ± 0.9, 3.9 ± 1.2 and 4.4 ± 1.0 cm, respectively, p = 0.002) at a lower delivered RF energy level (76.8 ± 14.3, 120.9 ± 24.5 and 114.2 ± 18.3 kJ, respectively, p < 0.001). CONCLUSION SB-RFA using three ICW electrodes can create coagulations >5 cm in diameter with better efficiency than do SM- or CM-RFA. ADVANCES IN KNOWLEDGE SB-RFA can create large, regular ablation zones with better time-energy efficiency than do CM- or SM-RFA.
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Affiliation(s)
- J H Yoon
- 1 Department of Radiology, Seoul National University Hospital, Seoul, Republic of Korea
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Kim J, Baek K, Shetty D, Selvapalam N, Yun G, Kim NH, Ko YH, Park KM, Hwang I, Kim K. Reversible Morphological Transformation between Polymer Nanocapsules and Thin Films through Dynamic Covalent Self-Assembly. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201411842] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Kim M, Hwang I, Bae J, Seong W. The influence of ritodrine alone or in combination with nifedipine on maternal cardiovascular side effects and pregnancy outcomes. CLIN EXP OBSTET GYN 2014. [DOI: 10.12891/ceog18342014] [Citation(s) in RCA: 3] [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: 11/01/2022]
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41
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Ko YH, Hwang I, Kim H, Kim Y, Kim K. Molecular Pop-up Toy: A Molecular Machine Based on Folding/Unfolding Motion of Alkyl Chains Bound to a Host. Chem Asian J 2014; 10:154-9. [DOI: 10.1002/asia.201402988] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Indexed: 01/03/2023]
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Yun G, Hassan Z, Lee J, Kim J, Lee N, Kim NH, Baek K, Hwang I, Park CG, Kim K. Highly Stable, Water‐Dispersible Metal‐Nanoparticle‐Decorated Polymer Nanocapsules and Their Catalytic Applications. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201403438] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Gyeongwon Yun
- Center for Self‐assembly and Complexity (CSC), Institute for Basic Science (IBS), Pohang, 790‐784 (Republic of Korea)
- Department of Chemistry, Pohang University of Science and Technology, Pohang, 790‐784 (Republic of Korea)
| | - Zahid Hassan
- Center for Self‐assembly and Complexity (CSC), Institute for Basic Science (IBS), Pohang, 790‐784 (Republic of Korea)
| | - Jiyeong Lee
- Center for Self‐assembly and Complexity (CSC), Institute for Basic Science (IBS), Pohang, 790‐784 (Republic of Korea)
- Department of Chemistry, Pohang University of Science and Technology, Pohang, 790‐784 (Republic of Korea)
| | - Jeehong Kim
- Center for Self‐assembly and Complexity (CSC), Institute for Basic Science (IBS), Pohang, 790‐784 (Republic of Korea)
- Department of Chemistry, Pohang University of Science and Technology, Pohang, 790‐784 (Republic of Korea)
| | - Nam‐Suk Lee
- National Institute for Nanomaterials Technology (NINT), Pohang University of Science and Technology, Pohang, 790‐784 (Republic of Korea)
| | - Nam Hoon Kim
- Center for Self‐assembly and Complexity (CSC), Institute for Basic Science (IBS), Pohang, 790‐784 (Republic of Korea)
| | - Kangkyun Baek
- Center for Self‐assembly and Complexity (CSC), Institute for Basic Science (IBS), Pohang, 790‐784 (Republic of Korea)
| | - Ilha Hwang
- Center for Self‐assembly and Complexity (CSC), Institute for Basic Science (IBS), Pohang, 790‐784 (Republic of Korea)
| | - Chan Gyung Park
- National Institute for Nanomaterials Technology (NINT), Pohang University of Science and Technology, Pohang, 790‐784 (Republic of Korea)
- Department of Material Science and Engineering, Pohang University of Science and Technology, Pohang, 790‐784 (Republic of Korea)
| | - Kimoon Kim
- Center for Self‐assembly and Complexity (CSC), Institute for Basic Science (IBS), Pohang, 790‐784 (Republic of Korea)
- Department of Chemistry, Pohang University of Science and Technology, Pohang, 790‐784 (Republic of Korea)
- Division of Advanced Materials Science, Pohang University of Science and Technology, Pohang, 790‐784 (Republic of Korea) http://csc.ibs.re.kr/
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Yun G, Hassan Z, Lee J, Kim J, Lee N, Kim NH, Baek K, Hwang I, Park CG, Kim K. Highly Stable, Water‐Dispersible Metal‐Nanoparticle‐Decorated Polymer Nanocapsules and Their Catalytic Applications. Angew Chem Int Ed Engl 2014; 53:6414-8. [DOI: 10.1002/anie.201403438] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Indexed: 11/08/2022]
Affiliation(s)
- Gyeongwon Yun
- Center for Self‐assembly and Complexity (CSC), Institute for Basic Science (IBS), Pohang, 790‐784 (Republic of Korea)
- Department of Chemistry, Pohang University of Science and Technology, Pohang, 790‐784 (Republic of Korea)
| | - Zahid Hassan
- Center for Self‐assembly and Complexity (CSC), Institute for Basic Science (IBS), Pohang, 790‐784 (Republic of Korea)
| | - Jiyeong Lee
- Center for Self‐assembly and Complexity (CSC), Institute for Basic Science (IBS), Pohang, 790‐784 (Republic of Korea)
- Department of Chemistry, Pohang University of Science and Technology, Pohang, 790‐784 (Republic of Korea)
| | - Jeehong Kim
- Center for Self‐assembly and Complexity (CSC), Institute for Basic Science (IBS), Pohang, 790‐784 (Republic of Korea)
- Department of Chemistry, Pohang University of Science and Technology, Pohang, 790‐784 (Republic of Korea)
| | - Nam‐Suk Lee
- National Institute for Nanomaterials Technology (NINT), Pohang University of Science and Technology, Pohang, 790‐784 (Republic of Korea)
| | - Nam Hoon Kim
- Center for Self‐assembly and Complexity (CSC), Institute for Basic Science (IBS), Pohang, 790‐784 (Republic of Korea)
| | - Kangkyun Baek
- Center for Self‐assembly and Complexity (CSC), Institute for Basic Science (IBS), Pohang, 790‐784 (Republic of Korea)
| | - Ilha Hwang
- Center for Self‐assembly and Complexity (CSC), Institute for Basic Science (IBS), Pohang, 790‐784 (Republic of Korea)
| | - Chan Gyung Park
- National Institute for Nanomaterials Technology (NINT), Pohang University of Science and Technology, Pohang, 790‐784 (Republic of Korea)
- Department of Material Science and Engineering, Pohang University of Science and Technology, Pohang, 790‐784 (Republic of Korea)
| | - Kimoon Kim
- Center for Self‐assembly and Complexity (CSC), Institute for Basic Science (IBS), Pohang, 790‐784 (Republic of Korea)
- Department of Chemistry, Pohang University of Science and Technology, Pohang, 790‐784 (Republic of Korea)
- Division of Advanced Materials Science, Pohang University of Science and Technology, Pohang, 790‐784 (Republic of Korea) http://csc.ibs.re.kr/
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Hwang I, Huang JY, Kim M, Lee BJ, Kim C, Choi JY, Kim MH, Lee HS, Moon D, Lee EH, Kim DE, Nam SH, Shin S, Cho M. Top-up operation at Pohang Light Source-II. Rev Sci Instrum 2014; 85:055113. [PMID: 24880421 DOI: 10.1063/1.4878256] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
After three years of upgrading work, PLS-II (S. Shin, Commissioning of the PLS-II, JINST, January 2013) is now successfully operating. The top-up operation of the 3 GeV linear accelerator had to be delayed because of some challenges encountered, and PLS-II was run in decay mode at the beginning in March 2012. The main difficulties encountered in the top-up operation of PLS-II are different levels between the linear accelerator and the storage ring, the 14 narrow gap in-vacuum undulators in operation, and the full energy injection by 3 GeV linear accelerator. Large vertical emittance and energy jitter of the linac were the major obstacles that called for careful control of injected beam to reduce beam loss in the storage ring during injection. The following measures were taken to resolve these problems: (1) The high resolution Libera BPM (see http://www.i-tech.si) was implemented to measure the beam trajectory and energy. (2) Three slit systems were installed to filter the beam edge. (3) De-Qing circuit was applied to the modulator system to improve the energy stability of injected beam. As a result, the radiation by beam loss during injection is reduced drastically, and the top-up mode has been successfully operating since 19th March 2013. In this paper, we describe the experimental results of the PLS-II top-up operation and the improvement plan.
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Affiliation(s)
- I Hwang
- Pohang Accelerator Laboratory, Pohang, Kyungbuk 790-834, South Korea
| | - J Y Huang
- Pohang Accelerator Laboratory, Pohang, Kyungbuk 790-834, South Korea
| | - M Kim
- Pohang Accelerator Laboratory, Pohang, Kyungbuk 790-834, South Korea
| | - B-J Lee
- Pohang Accelerator Laboratory, Pohang, Kyungbuk 790-834, South Korea
| | - C Kim
- Pohang Accelerator Laboratory, Pohang, Kyungbuk 790-834, South Korea
| | - J-Y Choi
- Pohang Accelerator Laboratory, Pohang, Kyungbuk 790-834, South Korea
| | - M-H Kim
- Pohang Accelerator Laboratory, Pohang, Kyungbuk 790-834, South Korea
| | - H S Lee
- Pohang Accelerator Laboratory, Pohang, Kyungbuk 790-834, South Korea
| | - D Moon
- Pohang Accelerator Laboratory, Pohang, Kyungbuk 790-834, South Korea
| | - E H Lee
- Pohang Accelerator Laboratory, Pohang, Kyungbuk 790-834, South Korea
| | - D-E Kim
- Pohang Accelerator Laboratory, Pohang, Kyungbuk 790-834, South Korea
| | - S H Nam
- Pohang Accelerator Laboratory, Pohang, Kyungbuk 790-834, South Korea
| | - S Shin
- Pohang Accelerator Laboratory, Pohang, Kyungbuk 790-834, South Korea
| | - Moohyun Cho
- Department of Physics, POSTECH, Pohang, Kyungbuk 790-834, South Korea
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Andrade LH, Alonso J, Mneimneh Z, Wells JE, Al-Hamzawi A, Borges G, Bromet E, Bruffaerts R, de Girolamo G, de Graaf R, Florescu S, Gureje O, Hinkov HR, Hu C, Huang Y, Hwang I, Jin R, Karam EG, Kovess-Masfety V, Levinson D, Matschinger H, O'Neill S, Posada-Villa J, Sagar R, Sampson NA, Sasu C, Stein DJ, Takeshima T, Viana MC, Xavier M, Kessler RC. Barriers to mental health treatment: results from the WHO World Mental Health surveys. Psychol Med 2014; 44:1303-1317. [PMID: 23931656 DOI: 10.1017/s003329171300194] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
BACKGROUND To examine barriers to initiation and continuation of mental health treatment among individuals with common mental disorders. METHOD Data were from the World Health Organization (WHO) World Mental Health (WMH) surveys. Representative household samples were interviewed face to face in 24 countries. Reasons to initiate and continue treatment were examined in a subsample (n = 63,678) and analyzed at different levels of clinical severity. RESULTS Among those with a DSM-IV disorder in the past 12 months, low perceived need was the most common reason for not initiating treatment and more common among moderate and mild than severe cases. Women and younger people with disorders were more likely to recognize a need for treatment. A desire to handle the problem on one's own was the most common barrier among respondents with a disorder who perceived a need for treatment (63.8%). Attitudinal barriers were much more important than structural barriers to both initiating and continuing treatment. However, attitudinal barriers dominated for mild-moderate cases and structural barriers for severe cases. Perceived ineffectiveness of treatment was the most commonly reported reason for treatment drop-out (39.3%), followed by negative experiences with treatment providers (26.9% of respondents with severe disorders). CONCLUSIONS Low perceived need and attitudinal barriers are the major barriers to seeking and staying in treatment among individuals with common mental disorders worldwide. Apart from targeting structural barriers, mainly in countries with poor resources, increasing population mental health literacy is an important endeavor worldwide.
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Affiliation(s)
- L H Andrade
- Section of Psychiatric Epidemiology-LIM 23, Department and Institute of Psychiatry, University of São Paulo Medical School, São Paulo, Brazil
| | - J Alonso
- Health Services Research Unit, IMIM (Hospital del Mar Research Institute), and CIBER en Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
| | - Z Mneimneh
- Institute for Development, Research, Advocacy and Applied Care (IDRAAC), St George Hospital University Medical Center, Beirut, Lebanon
| | - J E Wells
- Department of Public Health and General Practice, University of Otago, Christchurch, New Zealand
| | - A Al-Hamzawi
- Al-Qadisia University College of Medicine, Diwania Teaching Hospital, Diwania, Iraq
| | - G Borges
- Instituto Nacional de Psiquatria Ramon de la Fuente and Universidad Autonoma Metropolitana, Mexico DF, Mexico
| | - E Bromet
- Department of Psychiatry, State University of New York at Stony Brook, Stony Brook, NY, USA
| | - R Bruffaerts
- Universitair Psychiatrisch Centrum - Katholieke Universiteit Leuven (UPC-KUL), Leuven, Belgium
| | - G de Girolamo
- IRCCS Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
| | - R de Graaf
- Trimbos Institute, Netherlands Institute of Mental Health and Addiction, Utrecht, The Netherlands
| | - S Florescu
- National School of Public Health Management and Professional Development, Bucharest, Romania
| | - O Gureje
- Department of Psychiatry, University of Ibadan, College of Medicine, Ibadan, Nigeria
| | - H R Hinkov
- National Center for Public Health and Analyses, Sofia, Bulgaria
| | - C Hu
- Shenzhen Institute of Mental Health and Shenzhen Kangning Hospital, Shenzhen, P. R. China
| | - Y Huang
- Institute of Mental Health, Peking University, Beijing, P. R. China
| | - I Hwang
- Department of Health Care Policy, Harvard Medical School, Boston, MA, USA
| | - R Jin
- Harvard Pilgrim Health Care, Boston, MA, USA
| | - E G Karam
- Institute for Development, Research, Advocacy and Applied Care (IDRAAC), St George Hospital University Medical Center, Beirut, Lebanon
| | - V Kovess-Masfety
- EA 4069 Université Paris Descartes and Department of Epidemiology, EHESP School for Public Health, Paris, France
| | - D Levinson
- Research and Planning, Mental Health Services, Ministry of Health, Jerusalem, Israel
| | - H Matschinger
- Institute of Social Medicine, Occupational Health and Public Health, Public Health Research Unit, University of Leipzig, Germany
| | - S O'Neill
- Psychology Research Institute, University of Ulster, Londonderry, UK
| | - J Posada-Villa
- Pontificia Universidad Javeriana, Instituto Colombiano del Sistema Nervioso, Bogota, Colombia
| | - R Sagar
- Department of Psychiatry, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
| | - N A Sampson
- Department of Health Care Policy, Harvard Medical School, Boston, MA, USA
| | - C Sasu
- Scoala Nationala de Sanatate Publica, Management si Perfectionare in Domeniul Sanitar (SNSPMPDSB), Bucharest, Romania
| | - D J Stein
- Department of Psychiatry and Mental Health, University of Cape Town, J-Block, Groote Schuur Hospital, Cape Town, South Africa
| | - T Takeshima
- National Institute of Mental Health, National Center of Neurology and Psychiatry, Japan
| | - M C Viana
- Department of Social Medicine, Federal University of Espírito Santo (UFES), Vitória, Espírito Santo, Brazil
| | - M Xavier
- Mental Health Department, Faculdade Ciências Médicas, Universidade Nova de Lisboa, Lisbon, Portugal
| | - R C Kessler
- Department of Health Care Policy, Harvard Medical School, Boston, MA, USA
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Andrade LH, Alonso J, Mneimneh Z, Wells JE, Al-Hamzawi A, Borges G, Bromet E, Bruffaerts R, de Girolamo G, de Graaf R, Florescu S, Gureje O, Hinkov HR, Hu C, Huang Y, Hwang I, Jin R, Karam EG, Kovess-Masfety V, Levinson D, Matschinger H, O’Neill S, Posada-Villa J, Sagar R, Sampson NA, Sasu C, Stein D, Takeshima T, Viana MC, Xavier M, Kessler RC. Barriers to mental health treatment: results from the WHO World Mental Health surveys. Psychol Med 2014; 44:1303-1317. [PMID: 23931656 PMCID: PMC4100460 DOI: 10.1017/s0033291713001943] [Citation(s) in RCA: 597] [Impact Index Per Article: 59.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND To examine barriers to initiation and continuation of mental health treatment among individuals with common mental disorders. METHOD Data were from the World Health Organization (WHO) World Mental Health (WMH) surveys. Representative household samples were interviewed face to face in 24 countries. Reasons to initiate and continue treatment were examined in a subsample (n = 63,678) and analyzed at different levels of clinical severity. RESULTS Among those with a DSM-IV disorder in the past 12 months, low perceived need was the most common reason for not initiating treatment and more common among moderate and mild than severe cases. Women and younger people with disorders were more likely to recognize a need for treatment. A desire to handle the problem on one's own was the most common barrier among respondents with a disorder who perceived a need for treatment (63.8%). Attitudinal barriers were much more important than structural barriers to both initiating and continuing treatment. However, attitudinal barriers dominated for mild-moderate cases and structural barriers for severe cases. Perceived ineffectiveness of treatment was the most commonly reported reason for treatment drop-out (39.3%), followed by negative experiences with treatment providers (26.9% of respondents with severe disorders). CONCLUSIONS Low perceived need and attitudinal barriers are the major barriers to seeking and staying in treatment among individuals with common mental disorders worldwide. Apart from targeting structural barriers, mainly in countries with poor resources, increasing population mental health literacy is an important endeavor worldwide.
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Affiliation(s)
- L. H. Andrade
- Section of Psychiatric Epidemiology-LIM 23, Department/Institute of Psychiatry, University of São Paulo Medical School, São Paulo, Brazil
| | - J. Alonso
- Health Services Research Unit, IMIM (Hospital del Mar Research Institute), and CIBER en Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
| | - Z. Mneimneh
- Institute for Development Research Advocacy and Applied Care (IDRAAC), Beirut, Lebanon; Survey Methodology Program, Institute for Social Research, University of Michigan, USA
| | - J. E. Wells
- Department of Public Health and General Practice, University of Otago, Christchurch. Christchurch, New Zealand
| | - A. Al-Hamzawi
- Al-Qadisia University College of Medicine, Diwania Teaching Hospital, Diwania, Iraq
| | - G. Borges
- Instituto Nacional de Psiquatria Ramon de la Fuente & Universidad Autonoma Metropolitana, Mexico DF, Mexico
| | - E. Bromet
- State University of New York at Stony Brook Department of Psychiatry, Stony Brook, NY
| | - R. Bruffaerts
- Universitair Psychiatrisch Centrum –Katholieke Universiteit Leuven (UPC-KUL), Leuven, Belgium
| | - G. de Girolamo
- IRCCS Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
| | - R. de Graaf
- Trimbos Institute, Netherlands Institute of Mental Health and Addiction, Utrecht, The Netherlands
| | - S. Florescu
- National School of Public Health Management and Professional Development, Bucharest, Romania
| | - O. Gureje
- Department of Psychiatry, University of Ibadan, College of Medicine, Ibadan, Nigeria
| | - H. R. Hinkov
- National Center for Public Health and Analyses, Sofia, Bulgaria
| | - C. Hu
- Shenzhen Institute of Mental Health & Shenzhen Kangning Hospital, Shenzhen, People’s Republic of China
| | - Y. Huang
- Institute of Mental Health, Peking University, Beijing, P. R. China
| | - I. Hwang
- Department of Health Care Policy, Harvard Medical School, Boston, Massachusetts, USA
| | - R. Jin
- Harvard Pilgrim Health Care, Boston, MA
| | - E. G. Karam
- Institute for Development, Research, Advocacy and Applied Care (IDRAAC), St. George Hospital University Medical Center, Beirut, Lebanon
| | - V. Kovess-Masfety
- EA 4069 Université Paris Descartes & EHESP School for Public Health, Department of Epidemiology, Paris, France
| | - D. Levinson
- Research and Planning, Mental Health Services, Ministry of Health, Jerusalem, Israel
| | - H. Matschinger
- Institute of Social Medicine, Occupational Health and Public Health, Public Health Research Unit, University of Leipzig, Germany
| | - S. O’Neill
- Psychology Research Institute, University of Ulster, Londonderry, UK
| | - J. Posada-Villa
- Pontificia Universidad Javeriana, Instituto Colombiano del Sistema Nervioso, Bogota, Colombia
| | - R. Sagar
- Department of Psychiatry, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
| | - N. A. Sampson
- Department of Health Care Policy, Harvard Medical School, Boston, Massachusetts, USA
| | - C. Sasu
- Scoala Nationala de Sanatate Publica, Management si Perfectionare in Domeniul Sanitar (SNSPMPDSB), Bucharest, Romania
| | - D. Stein
- University of Cape Town, Department of Psychiatry and Mental Health, J-Block, Groote Schuur Hospital, Observatory, Cape Town, South Africa
| | - T. Takeshima
- National Institute of Mental Health, National Center of Neurology and Psychiatry, Japan
| | - M. C. Viana
- Department of Social Medicine, Federal University of Espírito Santo (UFES), Vitória, Espírito Santo, Brazil
| | - M. Xavier
- Mental Health Department, Faculdade Ciências Médicas - Universidade Nova de Lisboa Lisbon, Portugal
| | - R. C. Kessler
- Department of Health Care Policy, Harvard Medical School, Boston, Massachusetts, USA
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Kim MJ, Hwang I, Bae JY, Seong WJ. The influence of ritodrine alone or in combination with nifedipine on maternal cardiovascular side effects and pregnancy outcomes. CLIN EXP OBSTET GYN 2014; 41:537-540. [PMID: 25864255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To compare the influence of ritodrine alone or in combination with nifedipine on maternal side effects and suppressing preterm labor. MATERIALS AND METHODS This retrospective study included 213 pregnancies with preterm labor (20-34 weeks) from May 2002 to April 2010 in Kyungpook National University Hospital in Daegu, Korea. Obstetric medical records were reviewed for both maternal characteristics and neonatal outcomes, including birth weight, Apgar score, admission to neonatal intensive care unit (NICU), ventilator support, and neonatal mortality. Maternal side effects such as tachycardia, pulmonary edema, and hyperglycemia were also reviewed. RESULTS Of 213 patients, 109 received ritodrine only and 104 were given ritodrine and nifedipine. There was no statistical difference between the two groups with regards to pregnancy outcomes and neonatal complications. Pregnancy prolongation over seven days was achieved more in the combination therapy group, with borderline statistical significance (59.6% vs. 72.1%, p = 0.055). Sixty-nine cases experienced maternal side effects; four cases were categorized as serious and 65 cases were mild. CONCLUSION In the treatment of preterm labor, the combination regimen of ritodrine and nifedipine can be more effective than ritodrine alone for prolonging gestation over seven days. Moreover, as the combination did not cause severe maternal side effects, it may be considered as a safe and effective method to prolong gestation in patients with preterm labor.
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Hwang I, Choi SH, Kim YJ, Kim KG, Lee AL, Yun TJ, Kim JH, Sohn CH. Differentiation of recurrent tumor and posttreatment changes in head and neck squamous cell carcinoma: application of high b-value diffusion-weighted imaging. AJNR Am J Neuroradiol 2013; 34:2343-8. [PMID: 23811978 DOI: 10.3174/ajnr.a3603] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND AND PURPOSE High b-value DWI has been expected to have an additional diagnostic role and demonstrated some promising results in head and neck cancer. The aim of this study was to evaluate the diagnostic performance of DWI at a high b-value (b=2000 s/mm(2)) compared with a standard b-value (b=1000 s/mm(2)) and the ratio of ADC values of high and standard b-values for their ability to differentiate between recurrent tumor and posttreatment changes after the treatment of head and neck squamous cell carcinoma. MATERIALS AND METHODS A total of 33 patients diagnosed with head and neck squamous cell carcinoma were enrolled in the present study; all had contrast-enhancing lesions on follow-up MR imaging. All patients underwent single-shot echo-planar DWI at b=1000 s/mm(2) and b=2000 s/mm(2), and corresponding ADC maps were generated (ADC1000 and ADC2000, respectively). The mean ADC1000, ADC2000, and ADCratio (ADCratio = ADC2000/ADC1000 × 100) values were evaluated within a manually placed ROI with contrast-enhanced T1-weighted images as references. For the statistical analysis, we performed a Student t test and multivariate logistic regression. RESULTS The mean ADC1000 in recurrent tumor was significantly lower than that in posttreatment changes (P < .001), whereas the mean ADC2000 resulted in no significant difference (P = .365). The mean ADCratio was significantly higher in recurrent tumor than that in posttreatment changes (73.5 ± 7.2% vs 56.9 ± 8.8%, respectively; P < .001). Multivariate logistic regression analysis revealed that the ADCratio was the only independently differentiating variable (P = .024). The sensitivity, specificity, and accuracy of ADCratio were 95.0%, 69.2%, and 84.8%, respectively, by use of the optimal cutoff value of 62.6%. CONCLUSIONS We suggest that the ADCratio calculated from the ADC1000 and ADC2000 is a promising value for the differentiation of recurrent tumor and posttreatment changes in head and neck squamous cell carcinoma.
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Affiliation(s)
- I Hwang
- Department of Radiology Seoul National University College of Medicine, Seoul, Korea
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Baek K, Yun G, Kim Y, Kim D, Hota R, Hwang I, Xu D, Ko YH, Gu GH, Suh JH, Park CG, Sung BJ, Kim K. Free-standing, single-monomer-thick two-dimensional polymers through covalent self-assembly in solution. J Am Chem Soc 2013; 135:6523-8. [PMID: 23574044 DOI: 10.1021/ja4002019] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The design and synthesis of two-dimensional (2D) polymers is a challenging task, hitherto achieved in solution only through the aid of a solid surface "template" or preorganization of the building blocks in a 2D confined space. We present a novel approach for synthesizing free-standing, covalently bonded, single-monomer-thick 2D polymers in solution without any preorganization of building blocks on solid surfaces or interfaces by employing shape-directed covalent self-assembly of rigid, disk-shaped building blocks having laterally predisposed reactive groups on their periphery. We demonstrate our strategy through a thiol-ene "click" reaction between (allyloxy)12CB[6], a cucurbit[6]uril (CB[6]) derivative with 12 laterally predisposed reactive alkene groups, and 1,2-ethanedithiol to synthesize a robust and readily transferable 2D polymer. We can take advantage of the high binding affinity of fully protonated spermine (positive charges on both ends) to CB[6] to keep each individual polymer sheet separated from one another by electrostatic repulsion during synthesis, obtaining, for the first-time ever, a single-monomer-thick 2D polymer in solution. The arrangement of CB[6] repeating units in the resulting 2D polymer has been characterized using gold nanoparticle labeling and scanning transmission electron microscopy. Furthermore, we have confirmed the generality of our synthetic approach by applying it to different monomers to generate 2D polymers. Novel 2D polymers, such as our CB[6] derived polymer, may be useful in selective transport, controlled drug delivery, and chemical sensing and may even serve as well-defined 2D scaffolds for ordered functionalization and platforms for bottom-up 3D construction.
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Affiliation(s)
- Kangkyun Baek
- Center for Self-assembly and Complexity, Institute for Basic Science, Pohang, 790-784, Republic of Korea
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Hwang I, An BS, Yang H, Kang HS, Jung EM, Jeung EB. Tissue-specific expression of occludin, zona occludens-1, and junction adhesion molecule A in the duodenum, ileum, colon, kidney, liver, lung, brain, and skeletal muscle of C57BL mice. J Physiol Pharmacol 2013; 64:11-18. [PMID: 23568966] [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] [Received: 10/19/2012] [Accepted: 02/20/2013] [Indexed: 06/02/2023]
Abstract
Tight junctions are the most apically positioned intercellular junction and play many roles such as securing adjacent cells, forming barriers from extracellular materials, and facilitating paracellular transport. Occludin and junction adhesion molecule A (JAM-A) are classified as transmembrane proteins that are directly involved in paracellular transport. Zona occludens-1 (ZO-1) is a protein that contains a PDZ domain which forms a binding site for other tight junction proteins. In this study, we assessed the differential expression of these tight junction components in various mouse organs including the intestine (duodenum, ileum, and colon), kidney, liver, lung, brain, and skeletal muscle. Realtime PCR and Western blot assays were performed to measure the gene and protein expression of occludin, JAM-A, and ZO-1. Similar levels of occludin gene expression were detected in all tissues except for skeletal muscle in which occludin expression was not found. The JAM-A and ZO-1 genes were highly expressed in all the tested tissues. Localization of occludin, JAM-A, and ZO-1 was determined by immunohistochemistry. These proteins were detected in the intercellular apical junctions in each tissue except for occludin (which was not observed in skeletal muscle). These immunostaining data were consistent with the gene expression profiles we obtained. Our results suggest that occludin, JAM-A, and ZO-1 genes are normally expressed in the intestine, kidney, liver, lung, and brain indicating that these factors may be essential for maintaining appropriate physiological concentration of ions, solutes and water.
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Affiliation(s)
- I Hwang
- Laboratory of Veterinary Biochemistry and Molecular Biology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk, 361-763 Republic of Korea
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