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Cheng M, Causa Andrieu P, Kim TH, Gangai N, Sonoda Y, Hricak H, Lakhman Y, Vargas HA, Woo S. Fat-containing adnexal masses on MRI: solid tissue volume and fat distribution as a guide for O-RADS Score assignment. Abdom Radiol (NY) 2023; 48:358-366. [PMID: 36173552 DOI: 10.1007/s00261-022-03688-x] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 09/15/2022] [Accepted: 09/16/2022] [Indexed: 01/21/2023]
Abstract
PURPOSE To explore ways to improve O-RADS MRI scoring for fat-containing adnexal masses, by investigating methods for quantifying solid tissue volume and fat distribution and evaluating their associations with malignancy. METHODS This retrospective, single-center study included patients with fat-containing adnexal masses on MRI during 2008-2021. Two radiologists independently reviewed overall size (Sizeoverall), size of any solid tissue (Sizeanysolid), size of solid tissue that was not Rokitansky nodule (Sizenon-Rokitansky), and fat distribution. Wilcoxon test, Fisher-exact test, and ROC curve analysis were performed. Reference standard was pathology or follow-up > 24 months. RESULTS 188 women (median age 35 years) with 163 benign and 25 malignant lesions were included. Sizeoverall (R1, 9.9 cm vs 5.9 cm; R2, 12.4 cm vs 6.0 cm), Sizeanysolid (R1, 5.1 cm vs 1.2 cm; R2, 3.2 cm vs 0.0 cm), Sizenon-Rokitansky (R1, 5.1 cm vs 0.0 cm; R2, 3.1 cm vs 0.0 cm), and fat distribution differed significantly between malignant and benign lesions (p < 0.01). Area under ROC curve was greatest using Sizenon-Rokitansky (R1, 0.83; R2, 0.86) vs Sizeoverall (R1, 0.78; R2, 0.81) or Sizeanysolid (R1, 0.79; R2, 0.81), though differences were non-significant (p = 0.48-0.93). Cutoffs for Sizenon-Rokitansky (R1, ≥ 1.2 cm; R2, ≥ 1.0 cm) yielded sensitivity and specificity of 0.72 and 0.93 (R1) and 0.76 and 0.95 (R2). Among immature teratomas, 85.7% displayed scattered fat. CONCLUSION Overall size, size of (any or non-Rokitansky-nodule) solid tissue, and fat distribution differed between benign and malignant fat-containing adnexal masses. Incorporating these would constitute simple and practical approaches to refining O-RADS MRI scoring.
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Affiliation(s)
- Monica Cheng
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Radiology, Massachusetts General Hospital, Boston, MA, USA
| | - Pamela Causa Andrieu
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Tae-Hyung Kim
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Natalie Gangai
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Yukio Sonoda
- Department of Surgery, Gynecology Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Hedvig Hricak
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Yulia Lakhman
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Hebert A Vargas
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Sungmin Woo
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
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Kim SH, Han K, Park J, Park DW, Moon JY, Sim YS, Kim TH, Kim SH, Sohn JW, Yoon HJ, Lee H, Choi H. Association between non-cystic fibrosis bronchiectasis and the risk of incident dementia: A nationwide cohort study. Chron Respir Dis 2023; 20:14799731231222282. [PMID: 38100725 PMCID: PMC10725102 DOI: 10.1177/14799731231222282] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 11/22/2023] [Accepted: 12/05/2023] [Indexed: 12/17/2023] Open
Abstract
BACKGROUND Chronic lung diseases, such as chronic obstructive pulmonary disease or asthma, are associated with an increased risk of dementia. However, few data are available regarding the risk of dementia in individuals with bronchiectasis. OBJECTIVES To explore the association between bronchiectasis and the risk of incident dementia using a longitudinal population-based cohort. METHODS A total of 4,068,560 adults older than 50 years without previous dementia were enrolled from the Korean National Health Insurance Service database in 2009. They were followed up until the date of the diagnosis of dementia or December 31, 2020. The study exposure was the diagnosis of bronchiectasis, and the primary outcome was incident dementia comprising Alzheimer's disease and vascular dementia. RESULTS During the median follow-up duration of 9.3 years, the incidence of all-cause dementia was 1.6-fold higher in individuals with bronchiectasis than in those without bronchiectasis (15.0 vs. 9.3/1000 person-years, p < .001). In the multivariable Cox regression analysis, the risk of all dementia was significantly higher in individuals with bronchiectasis than in those without bronchiectasis (adjusted hazard ratio [aHR] 1.09, 95% confidence interval [CI] 1.04-1.14). In a subgroup analysis by dementia type, individuals with bronchiectasis had an increased risk of Alzheimer's disease compared to those without bronchiectasis (aHR 1.07, 95% CI 1.01-1.12); the risk of vascular dementia did not significantly differ between the two groups (aHR 1.05, 95% CI 0.90-1.21). CONCLUSION Bronchiectasis was associated with an increased risk of dementia, especially Alzheimer's disease.
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Affiliation(s)
- Sang Hyuk Kim
- Department of Internal Medicine, Hallym University College of Medicine, Seoul, Korea
- Department of Internal Medicine, Dongguk University Gyeongju Hospital, Dongguk University College of Medicine, Gyeongju, Korea
| | - Kyungdo Han
- Department of Statistics and Actuarial Science, Soongsil University, Seoul, Korea
| | - Jongkyu Park
- Department of Neurology, Soonchunhyang University College of Medicine, Soonchunhyang University, Cheonan, Korea
| | - Dong Won Park
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Ji-Yong Moon
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Yun Su Sim
- Department of Internal Medicine, Hallym University College of Medicine, Seoul, Korea
| | - Tae-Hyung Kim
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Sang-Heon Kim
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Jang Won Sohn
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Ho Joo Yoon
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Hyun Lee
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Hayoung Choi
- Department of Internal Medicine, Hallym University College of Medicine, Seoul, Korea
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Koo KM, Kim CD, Ju FN, Kim H, Kim CH, Kim TH. Recent Advances in Electrochemical Biosensors for Monitoring Animal Cell Function and Viability. Biosensors (Basel) 2022; 12:bios12121162. [PMID: 36551129 PMCID: PMC9775431 DOI: 10.3390/bios12121162] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/02/2022] [Accepted: 12/08/2022] [Indexed: 05/28/2023]
Abstract
Redox reactions in live cells are generated by involving various redox biomolecules for maintaining cell viability and functions. These qualities have been exploited in the development of clinical monitoring, diagnostic approaches, and numerous types of biosensors. Particularly, electrochemical biosensor-based live-cell detection technologies, such as electric cell-substrate impedance (ECIS), field-effect transistors (FETs), and potentiometric-based biosensors, are used for the electrochemical-based sensing of extracellular changes, genetic alterations, and redox reactions. In addition to the electrochemical biosensors for live-cell detection, cancer and stem cells may be immobilized on an electrode surface and evaluated electrochemically. Various nanomaterials and cell-friendly ligands are used to enhance the sensitivity of electrochemical biosensors. Here, we discuss recent advances in the use of electrochemical sensors for determining cell viability and function, which are essential for the practical application of these sensors as tools for pharmaceutical analysis and toxicity testing. We believe that this review will motivate researchers to enhance their efforts devoted to accelerating the development of electrochemical biosensors for future applications in the pharmaceutical industry and stem cell therapeutics.
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Baek SW, Kim DS, Song DH, Lee S, Lee JK, Park SY, Kim JH, Kim TH, Park CG, Han DK. PLLA Composites Combined with Delivery System of Bioactive Agents for Anti-Inflammation and Re-Endothelialization. Pharmaceutics 2022; 14:pharmaceutics14122661. [PMID: 36559156 PMCID: PMC9782680 DOI: 10.3390/pharmaceutics14122661] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 11/24/2022] [Accepted: 11/25/2022] [Indexed: 12/02/2022] Open
Abstract
The development of a biodegradable vascular scaffold (BVS) for the treatment of cardiovascular diseases (CVDs) still requires some improvement. Among them, re-endothelialization and anti-inflammation are clinically important to restore vascular function. In this study, we proposed a coating system to deliver hydrophilic bioactive agents to BVS using nanoemulsion and drop-casting methods. The poly(L-lactide) (PLLA) scaffold containing magnesium hydroxide (MH) was coated on the surface with bioactive molecules such as polydeoxyribonucleotide (PDRN), L-arginine (Arg, R), and mesenchymal stem cell-derived extracellular vesicles (EVs). PDRN upregulates the expression of VEGF as one of the A2A receptor agonists; and Arg, synthesized into nitric oxide by intracellular eNOS, induces endothelialization. In particular, EVs, which are composed of a lipid bilayer and transfer bioactive materials such as protein and nucleic acid, regulate homeostasis in blood vessels. Such a bioactive agent coating system and its PLLA composite suggest a new platform for the treatment of cardiovascular dysfunction.
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Affiliation(s)
- Seung-Woon Baek
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si 13488, Republic of Korea
- Department of Biomedical Engineering, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon-si 16419, Republic of Korea
- Department of Intelligent Precision Healthcare Convergence, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon-si 16419, Republic of Korea
| | - Da-Seul Kim
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si 13488, Republic of Korea
- School of Integrative Engineering, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Duck Hyun Song
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si 13488, Republic of Korea
| | - Semi Lee
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si 13488, Republic of Korea
| | - Jun-Kyu Lee
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si 13488, Republic of Korea
| | - So-Yeon Park
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si 13488, Republic of Korea
- Division of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - Jun Hyuk Kim
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si 13488, Republic of Korea
| | - Tae-Hyung Kim
- School of Integrative Engineering, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Chun Gwon Park
- Department of Biomedical Engineering, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon-si 16419, Republic of Korea
- Department of Intelligent Precision Healthcare Convergence, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon-si 16419, Republic of Korea
| | - Dong Keun Han
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si 13488, Republic of Korea
- Correspondence:
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Lee HW, Lee JK, Lee MG, Shin KC, Ra SW, Kim TH, Hwang YI, Jung KS, Yoo KH, Kim DK. Risk Factors of Rapid FEV<sub>1</sub> Decline in a Real-World Chronic Obstructive Pulmonary Disease Cohort. Respiration 2022; 101:1078-1087. [DOI: 10.1159/000525871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 06/27/2022] [Indexed: 11/06/2022] Open
Abstract
<b><i>Background:</i></b> Rapid forced expiratory volume in 1 s (FEV<sub>1</sub>) decliners have been considered a unique subgroup of patients with chronic obstructive pulmonary disease (COPD). Rapid FEV<sub>1</sub> decline manifests early and is associated with poor prognosis. This necessitates the pre-emptive identification of risk factors for rapid FEV<sub>1</sub> decline. <b><i>Objectives:</i></b> We aimed to determine the risk factors and clinical outcomes in patients with COPD. <b><i>Methods:</i></b> This longitudinal, observational study was based on the Korea COPD Subgroup Study cohort (NCT02800499) from January 2012 to December 2019 across 54 medical centers in South Korea. Eligible patients were followed up for 3 years with serial spirometric tests. We calculated the annualized percentage change in FEV<sub>1</sub> from baseline. Rapid decliners were defined as the quartile of patients with the highest annualized percentage FEV<sub>1</sub> decline. <b><i>Results:</i></b> Of the 518 patients, 130 were rapid decliners who lost 6.2%/year and 100 mL/year of FEV<sub>1</sub>. The multivariable logistic regression identified male sex, current smoking, blood eosinophil count <150/µL, and high forced vital capacity as the independent risk factors for rapid FEV<sub>1</sub> decline. Among rapid decliners, the lung function deteriorated more rapidly in current smokers and patients with severe dyspnea, while triple combination therapy attenuated lung function decline in comparison with mono-bronchodilator therapy. Rapid decliners had a higher rate of severe exacerbation than nonrapid decliners (0.2/year vs. 0.1/year, <i>p</i> value = 0.032). <b><i>Conclusions:</i></b> We identified the independent risk factors for rapid FEV<sub>1</sub> decline. This information may assist physicians in the early detection and pertinent management of rapid decline among patients with COPD.
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Ahn J, Kim T, Jung S, Ahn S, Song G, Kim M, Yang D, Lee J, Kim MY, Moon JH, Zhang Z, Kim H, Kim DDH. Next-generation sequencing-based analysis to assess the pattern of relapse in patients with Philadelphia-positive acute lymphoblastic leukemia. EJHaem 2022; 3:1145-1153. [PMID: 36467841 PMCID: PMC9713221 DOI: 10.1002/jha2.514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 06/05/2022] [Accepted: 06/06/2022] [Indexed: 06/17/2023]
Abstract
In this study, we performed serial monitoring using targeted DNA sequencing to identify genetic alterations in adults with Philadelphia-positive acute lymphoblastic leukemia (Ph-ALL). Deep sequencing was performed by targeting the coding regions of 45 genes with recurrent driver mutations and 1129 single nucleotide polymorphism sites. Of the 43 patients that we examined, at least one case of genetic alterations was detected in 38 (88%) of the 43 patients at diagnosis (somatic mutations in 10 patients [23%] and copy number aberrations [CNA] in 36 patients [84%]). The most frequently detected CNA lesions were in IKZF1 (n = 25, 58%) and the most frequently mutated gene was SETD2 (n = 5). At least one genetic abnormality (loss, gain, or persistence) was observed in all the samples obtained at relapse that were available for analysis (n = 15), compared with the samples obtained at diagnosis (disappearance of any previously detected genetic alterations: 11 patients [73%]; new genetic abnormalities: nine patients [60%]; and persistent genetic abnormalities: eight patients [53%]]. The most frequently deleted lesions were in IKZF1 (n = 9, 60%), and the most frequently mutated gene was ABL1 (eight patients, 53%). Our data indicate that leukemic progression may be associated with complex genetic alterations in Ph-ALL during the course of treatment.
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Affiliation(s)
- Jae‐Sook Ahn
- Department of Internal Medicine, Chonnam National University Hwasun HospitalChonnam National UniversityGwangjuRepublic of Korea
- Genomic Research Center for Hematopoietic DiseasesChonnam National University Hwasun HospitalJeollanam‐doRepublic of Korea
| | - TaeHyung Kim
- The Donnelly Centre for Cellular and Biomolecular ResearchUniversity of TorontoTorontoOntarioCanada
- Department of Computer ScienceUniversity of TorontoTorontoOntarioCanada
| | - Sung‐Hoon Jung
- Department of Internal Medicine, Chonnam National University Hwasun HospitalChonnam National UniversityGwangjuRepublic of Korea
| | - Seo‐Yeon Ahn
- Department of Internal Medicine, Chonnam National University Hwasun HospitalChonnam National UniversityGwangjuRepublic of Korea
| | - Ga‐Young Song
- Department of Internal Medicine, Chonnam National University Hwasun HospitalChonnam National UniversityGwangjuRepublic of Korea
| | - Mihee Kim
- Department of Internal Medicine, Chonnam National University Hwasun HospitalChonnam National UniversityGwangjuRepublic of Korea
| | - Deok‐Hwan Yang
- Department of Internal Medicine, Chonnam National University Hwasun HospitalChonnam National UniversityGwangjuRepublic of Korea
| | - Je‐Jung Lee
- Department of Internal Medicine, Chonnam National University Hwasun HospitalChonnam National UniversityGwangjuRepublic of Korea
| | - Mi Yeon Kim
- Genomic Research Center for Hematopoietic DiseasesChonnam National University Hwasun HospitalJeollanam‐doRepublic of Korea
| | - Joon Ho Moon
- Department of Hematology‐OncologyKyungpook National University Hospital, School of Medicine, Kyungpook National UniversityDaeguRepublic of Korea
| | - Zhaolei Zhang
- The Donnelly Centre for Cellular and Biomolecular ResearchUniversity of TorontoTorontoOntarioCanada
- Department of Computer ScienceUniversity of TorontoTorontoOntarioCanada
- Department of Medical Oncology and Hematology, Princess Margaret Cancer CentreUniversity of TorontoTorontoOntarioCanada
| | - Hyeoung‐Joon Kim
- Department of Internal Medicine, Chonnam National University Hwasun HospitalChonnam National UniversityGwangjuRepublic of Korea
- Genomic Research Center for Hematopoietic DiseasesChonnam National University Hwasun HospitalJeollanam‐doRepublic of Korea
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Choi H, Kim SH, Han K, Park TS, Park DW, Moon JY, Kim SH, Kim TH, Sohn JW, Yoon HJ, Lee H. Association between exercise and risk of cardiovascular diseases in patients with non-cystic fibrosis bronchiectasis. Respir Res 2022; 23:288. [PMID: 36258193 PMCID: PMC9580142 DOI: 10.1186/s12931-022-02202-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 09/29/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Although cardiovascular comorbidities negatively impact survival in patients with bronchiectasis, there is limited evidence to recommend exercise in this population. We aimed to evaluate whether exercise habit changes are related to reduced cardiovascular disease risk and explore an optimal exercise amount. METHODS This study identified 165,842 patients with newly diagnosed bronchiectasis during 2010-2016 who underwent two health examinations and were followed up until December 2020. The exposure was the change in weekly habits of moderate- or vigorous-intensity physical activity between the two examinations, classified into non-exercisers and exercisers (further classified into new exercisers, exercise dropouts, and exercise maintainers). The amount of exercise was measured using metabolic equivalents of task (MET). The outcome was the incidence of myocardial infarction (MI) or stroke. RESULTS During a mean of 6.2 ± 2.1 follow-up years, 4,233 (2.6%) and 3,745 (2.3%) of patients with bronchiectasis had MI or stroke, respectively. Compared to non-exercisers, exercisers had a significantly lower risk of MI or stroke by 9-28% (p < 0.001 for both). Among exercisers, exercise maintainers showed the lowest risk of MI (adjusted hazard ratio [aHR], 0.72; 95% confidence interval [CI], 0.64-0.81) and stroke (aHR, 0.72; 95% CI, 0.64-0.82) compared to non-exercisers. Regarding exercise amount, a significant risk reduction was observed only in patients with bronchiectasis who exercised for ≥ 500 MET-min/wk. CONCLUSION Exercise was associated with a reduced risk of cardiovascular diseases in patients with bronchiectasis. In particular, the risk was lowest in exercise maintainers, and cardiovascular risk reduction was significant when exercising more than 500 MET-min/wk.
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Affiliation(s)
- Hayoung Choi
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Internal Medicine, Hallym University Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea.,Division of Molecular and Clinical Medicine, University of Dundee, Ninewells Hospital and Medical School, Dundee, UK
| | - Sang Hyuk Kim
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Internal Medicine, Hallym University Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - Kyungdo Han
- Department of Statistics and Actuarial Science, Soongsil University, Seoul, Korea
| | - Tai Sun Park
- Division of Pulmonary Medicine and Allergy, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Dong Won Park
- Division of Pulmonary Medicine and Allergy, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Ji-Yong Moon
- Division of Pulmonary Medicine and Allergy, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Sang-Heon Kim
- Division of Pulmonary Medicine and Allergy, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Tae-Hyung Kim
- Division of Pulmonary Medicine and Allergy, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Jang Won Sohn
- Division of Pulmonary Medicine and Allergy, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Ho Joo Yoon
- Division of Pulmonary Medicine and Allergy, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Hyun Lee
- Division of Pulmonary Medicine and Allergy, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea. .,Divsion of Pulmonary Medicine and Allergy, Department of Internal Medicine, Hanyang University College of Medicine, 222 Wangsimni-ro, Seongdong-gu, 04763, Seoul, Korea.
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Kim SH, Park HY, Jung H, Zo S, Kim S, Park DW, Park TS, Moon JY, Kim SH, Kim TH, Sohn JW, Yoon HJ, Lee H, Shin SH. Trends and factors associated with influenza vaccination in subjects with asthma: analysis of the Korea National Health and Nutrition Examination Survey between 2010 and 2019. Ther Adv Chronic Dis 2022; 13:20406223221123979. [PMID: 36213169 PMCID: PMC9537498 DOI: 10.1177/20406223221123979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Accepted: 08/18/2022] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Despite the importance of influenza vaccination, its rates in subjects with asthma are suboptimal, especially in the young population. METHODS Among 72,843 adults aged ⩾18 years from the Korea National Health and Nutrition Examination Survey conducted between 2010 and 2019, 1643 with asthma were included. The yearly trends and factors associated with influenza vaccination were analyzed in subjects with asthma. In addition, stratified analyses were performed by age group (<65 versus ⩾65 years). RESULTS During the study period, the overall influenza vaccination rate among subjects with asthma fluctuated from 51.0% to 64.3%, with a consistently higher vaccination rate in elderly subjects than in young subjects. Among young subjects with asthma, factors positively associated with influenza vaccination were female sex [adjusted odds ratio (aOR) = 1.66, 95% confidence interval (CI) = 1.11-2.49], current asthma being treated (aOR = 1.69, 95% CI = 1.14-2.50), history of pulmonary tuberculosis (aOR = 2.01, 95% CI = 1.04-3.87), and dyslipidemia (aOR = 1.86, 95% CI = 1.05-3.30). However, unmarried subjects showed an inverse relationship (aOR = 0.50, 95% CI = 0.34-0.75). In elderly subjects, unmarried status (aOR = 0.52, 95% CI = 0.29-0.94), being underweight (aOR = 0.29, 95% CI = 0.09-0.97), and having a low income (aOR = 0.42, 95% CI = 0.18-0.97) were factors negatively associated with influenza vaccination. CONCLUSION In the last 10 years, influenza vaccination rates have still been insufficient in subjects with asthma, particularly in young subjects. Considering the factors that are influencing the vaccination rates of young subjects, public policies to increase influenza vaccination rates in subjects with asthma need to be established urgently.
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Affiliation(s)
| | | | - Hwasik Jung
- Division of Pulmonary and Critical Care
Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan
University School of Medicine, Seoul, Korea
| | - Sungmin Zo
- Division of Pulmonary and Critical Care
Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan
University School of Medicine, Seoul, Korea
| | - Saerom Kim
- Division of Pulmonary and Critical Care
Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan
University School of Medicine, Seoul, Korea
| | - Dong Won Park
- Division of Pulmonary Medicine and Allergy,
Department of Internal Medicine, Hanyang University College of Medicine,
Seoul, Korea
| | - Tai Sun Park
- Division of Pulmonary Medicine and Allergy,
Department of Internal Medicine, Hanyang University College of Medicine,
Seoul, Korea
| | - Ji-Yong Moon
- Division of Pulmonary Medicine and Allergy,
Department of Internal Medicine, Hanyang University College of Medicine,
Seoul, Korea
| | - Sang-Heon Kim
- Division of Pulmonary Medicine and Allergy,
Department of Internal Medicine, Hanyang University College of Medicine,
Seoul, Korea
| | - Tae-Hyung Kim
- Division of Pulmonary Medicine and Allergy,
Department of Internal Medicine, Hanyang University College of Medicine,
Seoul, Korea
| | - Jang Won Sohn
- Division of Pulmonary Medicine and Allergy,
Department of Internal Medicine, Hanyang University College of Medicine,
Seoul, Korea
| | - Ho Joo Yoon
- Division of Pulmonary Medicine and Allergy,
Department of Internal Medicine, Hanyang University College of Medicine,
Seoul, Korea
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Kim SE, Chun KH, Oh J, Yu HT, Lee CJ, Kim TH, Pak HN, Lee MH, Joung B, Kang SM. Prediction of response to cardiac resynchronization therapy using cardiac magnetic resonance imaging in non-ischemic dilated cardiomyopathy. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1005] [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: 11/14/2022] Open
Abstract
Abstract
Background
Cardiac resynchronization therapy (CRT) is a well-established therapy for symptomatic heart failure with reduced ejection fraction, but the response is different for individuals. Although many modalities have been conducted to predict CRT response, cardiac magnetic resonance (CMR) to predict CRT response has still insufficient usefulness.
Purpose
We determine whether the parameters including late gadolinium enhancement (LGE) identified in CMR could act as predictors of CRT response.
Methods
We retrospectively investigated 124 patients with non-ischemic dilated cardiomyopathy who underwent CMR before CRT implantation between Jan 2010 and July 2021 in a single center. CRT response was defined as a decrease in left ventricular end-systolic volume (LVESV) >15% on echocardiography after at least 3 months after CRT implantation.
Results
Among the study population (mean age 65.7±11.2 years, mean EF 25±6.5%, 50% of female), 85 (69%) patients were defined as CRT responder. The CRT responders had more left bundle branch block (LBBB) compared with non-responders [79 (92.9%) vs. 23 (59.0%), p<0.001], but there was a no difference of QRS duration (158.7 vs 165.0ms, p=0.054) between two groups. CMR analysis showed that there were no significant differences in the left ventricular (LV) chamber volume and LV ejection fraction between CRT-responder and non-responder. However, the right ventricular (RV) chamber volume was smaller (RV end-diastolic volume index, 86.3 vs 103.5 ml/m2, p=0.039; RV end-systolic volume index, 49.3 vs 68.5 ml/m2, p=0.013) and the RV ejection fraction (RVEF) was higher (46.9 vs 37.6%, p=0.002) in CRT-responders compared with non-responders. The LGE on CMR was more shown in non-responders than in CRT-responders [33 (84.6%) vs 45 (52.9%), p<0.001]. In CMR parameters, RV dysfunction (RVEF <45%) [Odds ratio (OR), 0.21 (0.05–0.93), p=0.045] and LGE [OR, 0.21 (0.05–0.58), p=0.01] were significantly associated with poor CRT response.
Conclusions
The presence of LGE and RV dysfunction on CMR were associated with poor CRT response in patients with non-ischemic dilated cardiomyopathy. Further investigation with CMR for pre-CRT patients is needed to support these results.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- S E Kim
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - K H Chun
- NHIS Ilsan Hospital, Cardiology , Goyang , Korea (Republic of)
| | - J Oh
- 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)
| | - C J Lee
- 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)
| | - H N Pak
- 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)
| | - B Joung
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - S M Kang
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
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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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Park H, Yu HT, Kim TH, Park J, Park JK, Kang KW, Shim J, Kim JB, Choi EK, Park HW, Lee YS, Joung B. Oral anticoagulation therapy in atrial fibrillation patients with advanced chronic kidney disease: CODE-AF Registry. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.628] [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: 11/14/2022] Open
Abstract
Abstract
Background and objectives
Advanced chronic kidney disease (CKD), including end-stage renal disease (ESRD) on dialysis, increases thromboembolic risk among patients with atrial fibrillation (AF). This study examined the comparative safety and efficacy of direct-acting oral anticoagulant (DOAC) compared to warfarin or no OAC among AF patients with advanced CKD or ESRD on dialysis.
Methods
Using data from the COmparison study of Drugs for symptom control and complication prEvention of AF (CODE-AF) registry, 260 non-valvular AF patients with advanced CKD (defined as estimated glomerular filtration rate [eGFR] <3 0ml/min per 1.73 m2) or ESRD on dialysis were enrolled from June 2016 to July 2020. The study population was categorized into DOAC, warfarin, and no OAC group, and differences in major or clinically relevant non-major (CRNM) bleeding, stroke/systemic embolism (SE), myocardial infarction/critical limb ischemia (CLI), and death were assessed.
Results
During a median 24 months of follow-up, major or CRNM bleeding risk was significantly reduced in the DOAC group compared to the warfarin group (hazard ratio [HR] 0.21, 95% confidence interval [CI] 0.05 to 0.95, p=0.042). In addition, the risk of composite adverse clinical outcome (major or CRNM bleeding, stroke/SE, myocardial infarction/CLI, and death) was significantly reduced in the DOAC group compared to the no OAC group (HR 0.32, 95% CI 0.11 to 0.96, p=0.043).
Conclusion
Among AF patients with advanced CKD or ESRD on dialysis, DOAC was associated with a lower risk of major or CRNM bleeding compared to warfarin and a lower risk of composite adverse clinical outcome compared to no OAC.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): Korean Healthcare Technology R&D project funded by the Ministry of Health & Welfare (HI15C1200, HC19C0130)
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Affiliation(s)
- H Park
- Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - H T Yu
- Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - T H Kim
- Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - J Park
- Ewha Womans University School of Medicine , Seoul , Korea (Republic of)
| | - J K Park
- Hanyang university medical center , Seoul , Korea (Republic of)
| | - K W Kang
- Eulji University College of Medicine , Seoul , Korea (Republic of)
| | - J Shim
- Korea University Anam Hospital , Seoul , Korea (Republic of)
| | - J B Kim
- Kyunghee University , Seoul , Korea (Republic of)
| | - E K Choi
- Seoul National University Hospital , Seoul , Korea (Republic of)
| | - H W Park
- Chonnam National University School of Medicine , Gwangju , Korea (Republic of)
| | - Y S Lee
- Daegu Catholic University Medical Center , Daegu , Korea (Republic of)
| | - B Joung
- Yonsei University College of Medicine , Seoul , Korea (Republic of)
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Park Y, Yu HT, Kim TH, Uhm JS, Joung B, Lee MH, Pak HN. Effects of early recurrence and extra-PV triggers on long-term recurrence after catheter ablation for atrial fibrillation. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.594] [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: 11/13/2022] Open
Abstract
Abstract
Background
Although early recurrence (ER) within 3 months after atrial fibrillation (AF) catheter ablation (AFCA) was recently reported to be a reliable predictor of late recurrence (LR), the mechanism is not clear.
Purpose
We explored the characteristics of patients with ER and compared the long-term late recurrence (LR) pattern depending on the existence of extra-pulmonary vein trigger (ExPV-trigger).
Methods
Among 3643 patients who underwent de novo AFCA, we included 1249 patients (59.2±11.0 years old, 31.3% persistent AF) who underwent isoproterenol provocation and regular follow-up over three years after AFCA. We evaluated the risk factors for ER and compared the patients with ER alone (10.1%), LR alone (16.6%), and ER+LR (15.9%), and the outcome of repeat procedure.
Results
Overall ER (ER alone and ER+LR) was independently associated with persistent AF (OR 1.58 [1.16–2.14], p=0.003), extra-PV triggers (OR 2.80 [1.90–4.13], p<0.001), and empirical extra-PV ablation (OR 1.54 [1.15–2.07], p=0.004). Overall LR (LR alone and ER+LR) risk was significantly higher in the ER with ExPV-trigger group than in ER without ExPV-trigger or no ER groups (Log-rank p<0.001). The rhythm outcome of the second procedure did not differ between ER+LR and LR alone groups (Log-rank p=0.160), but was worse in the ER+LR ExPV-trigger than in ER+LR without ExPV-trigger or LR alone groups (Log-rank p=0.005).
Conclusion
ER was independently associated with LR after de novo AFCA. ExPV-trigger played crucial roles in ER and LR after de novo AFCA and worse rhythm outcome after redo AFCA.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- Y 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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Kim D, Yu HT, Kwon OS, Kim TH, Uhm JS, Joung B, Lee MH, Pak HN. Effect of the epicardial fat volume on the outcomes after a left atrial posterior wall isolation in addition to pulmonary vein isolation in patients with persistent atrial fibrillation. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.595] [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: 11/14/2022] Open
Abstract
Abstract
Background
While the effect of a circumferential pulmonary vein isolation (CPVI) alone is unsatisfactory, that of an additional electrical posterior wall box isolation (POBI) is controversial in persistent atrial fibrillation (PeAF) patients. Increased epicardial adipose tissue (EAT) is associated with higher recurrence rates after AF catheter ablation (AFCA).
Purpose
We investigated the possible effects of a POBI on rhythm outcomes with varying EAT volumes.
Methods
We included 1,187 patients with PeAF undergoing a de novo AFCA (79.6% male, median age 60 years) into two groups including those receiving a CPVI alone (n=687) and those an additional POBI (n=500). The rhythm outcomes at two years post-AFCA were compared in subgroups stratified by the total EAT volume using propensity overlap weighting.
Results
A reduced total EAT volume was linearly associated with more favorable rhythm outcomes for an additional POBI treatment than for a CPVI alone (P for interaction=0.002). Among the patients with smaller EAT volumes (≤116.23 ml, the median value, n=594), an additional POBI was associated with a reduced AF recurrence risk as compared to a CPVI only (weighted hazard ratio [HR] 0.74, 95% confidence interval [CI] 0.56–0.99; weighted log-rank P=0.039). In contrast, among the remaining 593 patients with greater EAT volumes (>116.2 3mL), there was no difference in the AF recurrence risk between an additional POBI and CPVI alone (weighted HR 1.13, 95% CI 0.84–1.52; weighted log-rank P=0.410). Among 185 patients with a repeat ablation, the POBI reconnection rate tended to be higher in the large EAT group (75.0%) than small EAT group (55.4%, P=0.060).
Conclusion
While PeAF patients with a smaller EAT volume averted AF recurrence by an additional POBI after the CPVI, no benefit of the POBI was observed in those with a greater EAT volume. The EAT volume might identify AF patients likely to benefit from linear ablation in addition to the CPVI.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): Korean Ministry of Science, ICT & Future Planning (MSIP)Korean Ministry of Health and Welfare
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Affiliation(s)
- D Kim
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - H T Yu
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - O S Kwon
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - T H Kim
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - J S Uhm
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - B Joung
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - M H Lee
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - H N Pak
- Yonsei University College of Medicine, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
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Abstract
Cervical cancer is the fourth most common malignancy in women worldwide. Although infection from human papillomavirus (HPV) has been the leading cause of cervical cancer, HPV-negative cervical cancer accounts for approximately 3-8% of all cases. Previous research studies on cervical cancer have focused on HPV-positive cervical cancer due to its prevalence, resulting in HPV-negative cervical cancer receiving considerably less attention. As a result, HPV-negative cervical cancer is poorly understood. Its etiology remains elusive mainly due to limitations in research methodology such as lack of defined markers and model systems. Moreover, false HPV negativity can arise from inaccurate diagnostic methods, which also hinders the progress of research on HPV-negative cervical cancer. Since HPV-negative cervical cancer is associated with worse clinical features, greater attention is required to understand HPV-negative carcinoma. In this review, we provide a summary of knowledge gaps and current limitations of HPV-negative cervical cancer research based on current clinical statistics. We also discuss future directions for understanding the pathogenesis of HPV-independent cervical cancer.
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Affiliation(s)
- Jae-Eun Lee
- Department of Biomedical Science, University of Sheffield, S10 2TN, UK
| | - Yein Chung
- St. Benedict Catholic Secondary School, Sudbury, Ontario, P3E 4X5, Canada
| | - Siyeon Rhee
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Tae-Hyung Kim
- Department of Pathology, University of New Mexico School of Medicine, Albuquerque, NM 87131; Comprehensive Cancer Center, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA
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65
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Lee SI, Choi YY, Kang SG, Kim TH, Choi JW, Kim YJ, Kim TH, Kang T, Chung BG. 3D Multicellular Tumor Spheroids in a Microfluidic Droplet System for Investigation of Drug Resistance. Polymers (Basel) 2022; 14:polym14183752. [PMID: 36145898 PMCID: PMC9500872 DOI: 10.3390/polym14183752] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [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: 08/01/2022] [Revised: 08/27/2022] [Accepted: 09/02/2022] [Indexed: 11/27/2022] Open
Abstract
A three-dimensional (3D) tumor spheroid model plays a critical role in mimicking tumor microenvironments in vivo. However, the conventional culture methods lack the ability to manipulate the 3D tumor spheroids in a homogeneous manner. To address this limitation, we developed a microfluidic-based droplet system for drug screening applications. We used a tree-shaped gradient generator to control the cell density and encapsulate the cells within uniform-sized droplets to generate a 3D gradient-sized tumor spheroid. Using this microfluidic-based droplet system, we demonstrated the high-throughput generation of uniform 3D tumor spheroids containing various cellular ratios for the analysis of the anti-cancer drug cytotoxicity. Consequently, this microfluidic-based gradient droplet generator could be a potentially powerful tool for anti-cancer drug screening applications.
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Affiliation(s)
- Sang Ik Lee
- Department of Mechanical Engineering, Sogang University, Seoul 04107, Korea
| | - Yoon Young Choi
- Institute of Integrated Biotechnology, Sogang University, Seoul 04107, Korea
| | - Seong Goo Kang
- Department of Biomedical Engineering, Sogang University, Seoul 04107, Korea
| | - Tae Hyeon Kim
- Department of Mechanical Engineering, Sogang University, Seoul 04107, Korea
| | - Ji Wook Choi
- Department of Mechanical Engineering, Sogang University, Seoul 04107, Korea
| | - Young Jae Kim
- Department of Mechanical Engineering, Sogang University, Seoul 04107, Korea
| | - Tae-Hyung Kim
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea
| | - Taewook Kang
- Institute of Integrated Biotechnology, Sogang University, Seoul 04107, Korea
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul 04107, Korea
| | - Bong Geun Chung
- Department of Mechanical Engineering, Sogang University, Seoul 04107, Korea
- Institute of Integrated Biotechnology, Sogang University, Seoul 04107, Korea
- Correspondence:
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Lee JE, Chung Y, Rhee S, Kim TH. Untold story of human cervical cancers: HPV-negative cervical cancer. BMB Rep 2022; 55:429-438. [PMID: 35725012 PMCID: PMC9537028] [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] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 06/14/2022] [Accepted: 06/14/2022] [Indexed: 03/09/2024] Open
Abstract
Cervical cancer is the fourth most common malignancy in women worldwide. Although infection from human papillomavirus (HPV) has been the leading cause of cervical cancer, HPV-negative cervical cancer accounts for approximately 3-8% of all cases. Previous research studies on cervical cancer have focused on HPV-positive cervical cancer due to its prevalence, resulting in HPV-negative cervical cancer receiving considerably less attention. As a result, HPV-negative cervical cancer is poorly understood. Its etiology remains elusive mainly due to limitations in research methodology such as lack of defined markers and model systems. Moreover, false HPV negativity can arise from inaccurate diagnostic methods, which also hinders the progress of research on HPV-negative cervical cancer. Since HPV-negative cervical cancer is associated with worse clinical features, greater attention is required to understand HPV-negative carcinoma. In this review, we provide a summary of knowledge gaps and current limitations of HPV-negative cervical cancer research based on current clinical statistics. We also discuss future directions for understanding the pathogenesis of HPV-independent cervical cancer. [BMB Reports 2022; 55(9): 429-438].
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Affiliation(s)
- Jae-Eun Lee
- Department of Biomedical Science, University of Sheffield, S10 2TN, UK, NM 87131, USA
| | - Yein Chung
- St. Benedict Catholic Secondary School, Sudbury, Ontario, P3E 4X5, Canada, NM 87131, USA
| | - Siyeon Rhee
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Tae-Hyung Kim
- Department of Pathology, University of New Mexico School of Medicine, Albuquerque, NM 87131, USA
- Comprehensive Cancer Center, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA
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Kim T, Park J. Maximum likelihood estimation of stochastic volatility models with leverage effect and fat-tailed distribution using hidden Markov model approximation. KJAS 2022. [DOI: 10.5351/kjas.2022.35.4.501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- TaeHyung Kim
- Department of Economics, Seoul National University
| | - JeongMin Park
- Department of Business Administration, Hanbat National University
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Fu T, Chan TW, Bahn JH, Kim TH, Rowat AC, Xiao X. Multifaceted role of RNA editing in promoting loss-of-function of PODXL in cancer. iScience 2022; 25:104836. [PMID: 35992085 PMCID: PMC9382340 DOI: 10.1016/j.isci.2022.104836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 06/16/2022] [Accepted: 07/20/2022] [Indexed: 12/03/2022] Open
Abstract
PODXL, a protein that is dysregulated in multiple cancers, plays an important role in promoting cancer metastasis. In this study, we report that RNA editing promotes the inclusion of a PODXL alternative exon. The resulting edited PODXL long isoform is more prone to protease digestion and has the strongest effects on reducing cell migration and cisplatin chemoresistance among the three PODXL isoforms (short, unedited long, and edited long isoforms). Importantly, the editing level of the PODXL recoding site and the inclusion level of the PODXL alternative exon are strongly associated with overall patient survival in Kidney Renal Clear Cell Carcinoma (KIRC). Supported by significant enrichment of exonic RNA editing sites in alternatively spliced exons, we hypothesize that exonic RNA editing sites may enhance proteomic diversity through alternative splicing, in addition to amino acid changes, a previously under-appreciated aspect of RNA editing function.
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Affiliation(s)
- Ting Fu
- Molecular, Cellular, and Integrative Physiology Interdepartmental Program, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Tracey W. Chan
- Bioinformatics Interdepartmental Program, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Jae Hoon Bahn
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Tae-Hyung Kim
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Amy C. Rowat
- Molecular, Cellular, and Integrative Physiology Interdepartmental Program, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Xinshu Xiao
- Molecular, Cellular, and Integrative Physiology Interdepartmental Program, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Bioinformatics Interdepartmental Program, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA
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Kim Y, Koo TM, Thangam R, Kim MS, Jang WY, Kang N, Min S, Kim SY, Yang L, Hong H, Jung HJ, Koh EK, Patel KD, Lee S, Fu HE, Jeon YS, Park BC, Kim SY, Park S, Lee J, Gu L, Kim DH, Kim TH, Lee KB, Jeong WK, Paulmurugan R, Kim YK, Kang H. Submolecular Ligand Size and Spacing for Cell Adhesion. Adv Mater 2022; 34:e2110340. [PMID: 35476306 DOI: 10.1002/adma.202110340] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 03/27/2022] [Indexed: 06/14/2023]
Abstract
Cell adhesion occurs when integrin recognizes and binds to Arg-Gly-Asp (RGD) ligands present in fibronectin. In this work, submolecular ligand size and spacing are tuned via template-mediated in situ growth of nanoparticles for dynamic macrophage modulation. To tune liganded gold nanoparticle (GNP) size and spacing from 3 to 20 nm, in situ localized assemblies of GNP arrays on nanomagnetite templates are engineered. 3 nm-spaced ligands stimulate the binding of integrin, which mediates macrophage-adhesion-assisted pro-regenerative polarization as compared to 20 nm-spaced ligands, which can be dynamically anchored to the substrate for stabilizing integrin binding and facilitating dynamic macrophage adhesion. Increasing the ligand size from 7 to 20 nm only slightly promotes macrophage adhesion, not observed with 13 nm-sized ligands. Increasing the ligand spacing from 3 to 17 nm significantly hinders macrophage adhesion that induces inflammatory polarization. Submolecular tuning of ligand spacing can dominantly modulate host macrophages.
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Affiliation(s)
- Yuri Kim
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Thomas Myeongseok Koo
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Ramar Thangam
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
- Institute for High Technology Materials and Devices, Korea University, Seoul, 02841, Republic of Korea
| | - Myeong Soo Kim
- Institute for High Technology Materials and Devices, Korea University, Seoul, 02841, Republic of Korea
| | - Woo Young Jang
- Department of Orthopedic Surgery, Korea University Anam Hospital, Seoul, 02841, Republic of Korea
| | - Nayeon Kang
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Sunhong Min
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Seong Yeol Kim
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Letao Yang
- Department of Chemistry and Chemical Biology, Rutgers University, Piscataway, NJ, 08854, USA
| | - Hyunsik Hong
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Hee Joon Jung
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA
- International Institute for Nanotechnology, Evanston, IL, 60208, USA
- NUANCE Center, Northwestern University, Evanston, IL, 60208, USA
| | - Eui Kwan Koh
- Seoul Center, Korea Basic Science Institute, 145 Anam-Ro, Seongbuk-Gu, Seoul, 02841, Republic of Korea
| | - Kapil D Patel
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
- Institute for High Technology Materials and Devices, Korea University, Seoul, 02841, Republic of Korea
| | - Sungkyu Lee
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Hong En Fu
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Yoo Sang Jeon
- Institute of Engineering Research, Korea University, Seoul, 02841, Republic of Korea
| | - Bum Chul Park
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Soo Young Kim
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
- Institute for High Technology Materials and Devices, Korea University, Seoul, 02841, Republic of Korea
| | - Steve Park
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Junmin Lee
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Luo Gu
- Department of Materials Science and Engineering and Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD, 21218, USA
| | - Dong-Hyun Kim
- Department of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Tae-Hyung Kim
- School of Integrative Engineering, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Ki-Bum Lee
- Department of Chemistry and Chemical Biology, Rutgers University, Piscataway, NJ, 08854, USA
| | - Woong Kyo Jeong
- Department of Orthopedic Surgery, Korea University Anam Hospital, Seoul, 02841, Republic of Korea
| | - Ramasamy Paulmurugan
- Department of Radiology, Molecular Imaging Program at Stanford, Stanford University School of Medicine, Stanford University, Palo Alto, CA, 94304, USA
- Department of Radiology, Canary Center at Stanford for Cancer Early Detection, Stanford University School of Medicine, Stanford University, Palo Alto, CA, 94304, USA
| | - Young Keun Kim
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Heemin Kang
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
- Department of Biomicrosystem Technology, Korea University, Seoul, 02841, Republic of Korea
- Institute of Green Manufacturing Technology, Korea University, Seoul, 02841, Republic of Korea
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Yoo J, Jung CY, Na JO, Kim TH, Oh YM, Ra SW. Bacterial etiology and pneumococcal urinary antigen in moderate exacerbation of chronic obstructive pulmonary disease. J Thorac Dis 2022; 14:2532-2543. [PMID: 35928620 PMCID: PMC9344423 DOI: 10.21037/jtd-22-133] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Accepted: 05/12/2022] [Indexed: 11/06/2022]
Abstract
Background This study aimed to establish nationwide data for the distributions of typical and atypical bacterial pathogens in Korean patients with moderate acute exacerbations of chronic obstructive pulmonary disease (AECOPD) and evaluate the clinical usefulness of a urinary antigen test (UAT) to detect Streptococcus pneumoniae. Methods This study was a post hoc analysis of a randomized controlled trial designed to compare oral zabofloxacin with moxifloxacin for treating outpatients with moderate AECOPD. From clinics across South Korea, 342 subjects with AECOPD were enrolled, and their blood, sputum, and urine samples were collected at baseline. A serologic test, sputum culture and polymerase chain reaction (PCR), and UAT were performed to identify bacterial pathogens. Bacterial prevalence and regional distributions were analyzed. The patients’ characteristics and clinical response between UAT-positive and UAT-negative groups were compared, as were the Streptococcus pneumoniae detection rates using conventional sputum culture and PCR versus UAT. Results The most commonly isolated pathogen was Haemophilus influenzae (30.3%), followed by Streptococcus pneumoniae (24.7%) and Pseudomonas aeruginosa (14.0%), with no significant regional differences in bacterial distribution. Patients with positive UAT for Streptococcus pneumoniae showed no clinical failure when treated with respiratory quinolone (0.0%), whereas 11.8% of patients with negative UAT showed clinical failure (P=0.037). UAT showed moderate agreement with sputum culture by kappa coefficient (κ=0.476). Conclusions The bacterial prevalence in patients with moderate AECOPD in South Korea showed correlations with the global prevalence, without significant regional differences. In outpatient settings, UAT has the potential to be used as a supplemental tool with sputum culture as a guide for determining the suspicion of bacterial exacerbation.
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Affiliation(s)
- Jungmin Yoo
- Department of Internal Medicine, Ulsan University Hospital, Ulsan, Republic of Korea
| | - Chi Young Jung
- Division of Pulmonology, Department of Internal Medicine, Daegu Catholic University Medical Center, Daegu, Republic of Korea
| | - Ju Ock Na
- Division of Pulmonology, Department of Internal Medicine, Soonchunhyang University College of Medicine, Cheonan, Republic of Korea
| | - Tae-Hyung Kim
- Division of Pulmonology, Department of Internal Medicine, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Republic of Korea
| | - Yeon-Mok Oh
- Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Seung Won Ra
- Division of Pulmonology, Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Republic of Korea
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71
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Park SY, Kim DS, Kim HM, Lee JK, Hwang DY, Kim TH, You S, Han DK. Human Mesenchymal Stem Cell-Derived Extracellular Vesicles Promote Neural Differentiation of Neural Progenitor Cells. Int J Mol Sci 2022; 23:ijms23137047. [PMID: 35806058 PMCID: PMC9267053 DOI: 10.3390/ijms23137047] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 06/20/2022] [Accepted: 06/22/2022] [Indexed: 02/07/2023] Open
Abstract
Mesenchymal stem cells (MSCs) have been adopted in various preclinical and clinical studies because of their multipotency and low immunogenicity. However, numerous obstacles relating to safety issues remain. Therefore, MSC-derived extracellular vesicles (EVs) have been recently employed. EVs are nano-sized endoplasmic reticulum particles generated and released in cells that have similar biological functions to their origin cells. EVs act as cargo for bioactive molecules such as proteins and genetic materials and facilitate tissue regeneration. EVs obtained from adipose-derived MSC (ADMSC) also have neuroprotective and neurogenesis effects. On the basis of the versatile effects of EVs, we aimed to enhance the neural differentiation ability of ADMSC-derived EVs by elucidating the neurogenic-differentiation process. ADMSC-derived EVs isolated from neurogenesis conditioned media (differentiated EVs, dEVs) increased neurogenic ability by altering innate microRNA expression and cytokine composition. Consequently, dEVs promoted neuronal differentiation of neural progenitor cells in vitro, suggesting that dEVs are a prospective candidate for EV-based neurological disorder regeneration therapy.
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Affiliation(s)
- So-Yeon Park
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si 13488, Korea; (S.-Y.P.); (D.-S.K.); (H.-M.K.); (J.-K.L.); (D.-Y.H.)
- Division of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea
| | - Da-Seul Kim
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si 13488, Korea; (S.-Y.P.); (D.-S.K.); (H.-M.K.); (J.-K.L.); (D.-Y.H.)
- School of Integrative Engineering, Chung-Ang University, 84 Heukseok-ro, Seoul 06974, Korea;
| | - Hyun-Mun Kim
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si 13488, Korea; (S.-Y.P.); (D.-S.K.); (H.-M.K.); (J.-K.L.); (D.-Y.H.)
| | - Jun-Kyu Lee
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si 13488, Korea; (S.-Y.P.); (D.-S.K.); (H.-M.K.); (J.-K.L.); (D.-Y.H.)
| | - Dong-Youn Hwang
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si 13488, Korea; (S.-Y.P.); (D.-S.K.); (H.-M.K.); (J.-K.L.); (D.-Y.H.)
| | - Tae-Hyung Kim
- School of Integrative Engineering, Chung-Ang University, 84 Heukseok-ro, Seoul 06974, Korea;
| | - Seungkwon You
- Division of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea
- Correspondence: (S.Y.); (D.K.H.)
| | - Dong Keun Han
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si 13488, Korea; (S.-Y.P.); (D.-S.K.); (H.-M.K.); (J.-K.L.); (D.-Y.H.)
- Correspondence: (S.Y.); (D.K.H.)
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Cowzer D, White JB, Chen PJ, Kim TH, Khalil D, El Dika IH, Chou JF, Yaqubie A, Light JS, Shia J, Yarmohammadi H, Erinjeri JP, Capanu M, Do RKG, Solit DB, Shah RH, Berger MF, Abou-Alfa GK, Harding JJ. Next-generation sequencing (NGS) of circulating cell-free DNA (cfDNA) in patients (pts) with advanced hepatocellular carcinoma (HCC). J Clin Oncol 2022. [DOI: 10.1200/jco.2022.40.16_suppl.4110] [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: 11/20/2022] Open
Abstract
4110 Background: HCC is often diagnosed based on high-quality cross-sectional imaging, and when a biopsy is pursued, acquisition of tissue may be of limited quantity and quality or complicated by underlying medical comorbidities. NGS of tumor derived circulating cfDNA represents an investigational tool for non-invasive molecular profiling, that has the potential to aid in diagnosis, prognosis, and in monitoring disease status. Although prior reports have evaluated such technologies, few studies have included tumor tissues to confirm histology and to explore plasma-tissue gene concordance. Methods: The primary objective of this retrospective cohort study was to define genomic alterations in circulating cfDNA and to explore plasma-tissue genotype concordance in HCC pts. HCC pts underwent collection of cfDNA for NGS using the MSK-ACCESS 129-gene assay between August 2019 and February 2021. Matched tissue-based NGS with the FDA authorized MSK-IMPACT gene assay was completed when tumor tissue was available. Clinical actionability of sequence variants was annotated by OncoKB, an FDA recognized knowledge base. Clinicopathologic characteristics were extracted, and all data were reported with descriptive statistics. Results: 51 unique patients with 53 plasma samples had an HCC histological diagnosis. Pts were male (39, 76%), median age 69 (42-87), viral hepatitis-related (24, 47%), and advanced stage (Stage III:9, 18%; Stage IV:38, 74.5%). Extrahepatic disease and macrovascular involvement were observed in 28 (55%) and 19 (38%) pts, respectively. 22 (43%) pts had AFP ≥400 ng/mL. 49 (92.5%) of 53 plasma samples had detectable genomic alterations. Median cfDNA yield after extraction was 39.43 ng (range: 7.93-287.68). The most frequently mutated genes occurring in > 10% of patients were TERT (57%), TP53 (47%), CTNNB1 (37%), ARID1A (18%) and TSC2 (14%). The most common oncogenic pathways that contained alterations were WNT-β-Catenin (45%) and PIK3-AKT-TOR (25%). 37 (73%) pts underwent tissue sequencing with MSK-IMPACT with a median time of 9.0 months to the time cfDNA testing. MSK-ACCESS identified mutations observed in tumor in most cases: TERT (20/22; 91%), TP53 (16/17; 94%), CTNNB1 (11/12; 92%), ARID1A (6/6; 100%) and TSC2 (6/7; 86%). In 18 (49%) of 37 paired samples, additional mutations in cfDNA not seen in tumor were detected and included KRAS, EGFR, and TP53 alterations. Potentially actionable mutations were identified through cfDNA in 37% of cases including TSC1/2 (18%), BRCA1/ 2 (8%) and PIK3CA (8%). Conclusions: Circulating cfDNA genotyping with MSK-ACCESS identifies previously reported HCC tumor genomic profiles and revealed tumor-associated mutations in 92.5% of plasma samples. Ongoing efforts will explore predictive and prognostic implications of NGS at different HCC stages as well as kinetics of treatment response.
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Affiliation(s)
- Darren Cowzer
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | | | - Pin-Jung Chen
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Tae-Hyung Kim
- Memorial Sloan Kettering Cancer Center, New York, NY
| | - Danny Khalil
- Memorial Sloan Kettering Cancer Center, New York, NY
| | | | - Joanne F. Chou
- Department of Epidemiology & Biostatistics, Memorial Sloan Kettering, New York, NY
| | - Amin Yaqubie
- Memorial Sloan Kettering Cancer Center, New York, NY
| | | | - Jinru Shia
- Memorial Sloan Kettering Cancer Center, New York, NY
| | | | | | - Marinela Capanu
- Department of Epidemiology & Biostatistics, Memorial Sloan Kettering, New York, NY
| | | | - David B. Solit
- Memorial Sloan Kettering Cancer Center, Weill Cornell Medical College, Kravis Center for Molecular Oncology, Sloan Kettering Institute, New York, NY
| | - Ronak H. Shah
- Memorial Sloan Kettering Cancer Center, New York, NY
| | | | - Ghassan K. Abou-Alfa
- Department of Medicine, Memorial Sloan Kettering Cancer Center and Weill Medical College, Cornell University, New York, NY
| | - James J. Harding
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
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Kim DH, Kim DS, Ha HJ, Jung JW, Baek SW, Baek SH, Kim TH, Lee JC, Hwang E, Han DK. Fat Graft with Allograft Adipose Matrix and Magnesium Hydroxide-Incorporated PLGA Microspheres for Effective Soft Tissue Reconstruction. Tissue Eng Regen Med 2022; 19:553-563. [PMID: 35312988 PMCID: PMC9130390 DOI: 10.1007/s13770-021-00426-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [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: 12/06/2021] [Revised: 12/16/2021] [Accepted: 12/20/2021] [Indexed: 10/18/2022] Open
Abstract
BACKGROUND Autologous fat grafting is one of the most common procedures used in plastic surgery to correct soft tissue deficiency or depression deformity. However, its clinical outcomes are often suboptimal, and lack of metabolic and architectural support at recipient sites affect fat survival leading to complications such as cyst formation, calcification. Extracellular matrix-based scaffolds, such as allograft adipose matrix (AAM) and poly(lactic-co-glycolic) acid (PLGA), have shown exceptional clinical promise as regenerative scaffolds. Magnesium hydroxide (MH), an alkaline ceramic, has attracted attention as a potential additive to improve biocompatibility. We attempted to combine fat graft with regenerative scaffolds and analyzed the changes and viability of injected fat graft in relation to the effects of injectable natural, and synthetic (PLGA/MH microsphere) biomaterials. METHODS In vitro cell cytotoxicity, angiogenesis of the scaffolds, and wound healing were evaluated using human dermal fibroblast cells. Subcutaneous soft-tissue integration of harvested fat tissue was investigated in vivo in nude mouse with random fat transfer protocol Fat integrity and angiogenesis were identified by qRT-PCR and immunohistochemistry. RESULTS In vitro cell cytotoxicity was not observed both in AAM and PLGA/MH with human dermal fibroblast. PLGA/MH and AAM showed excellent wound healing effect. In vivo, the AAM and PLGA/MH retained volume compared to that in the only fat group. And the PLGA/MH showed the highest angiogenesis and anti-inflammation. CONCLUSION In this study, a comparison of the volume retention effect and angiogenic ability between autologous fat grafting, injectable natural, and synthetic biomaterials will provide a reasonable basis for fat grafting.
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Affiliation(s)
- Dae-Hee Kim
- Department of Biomedical Engineering, College of Medicine, Seoul National University, 103 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Da-Seul Kim
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam, 13488, Republic of Korea
- School of Integrative Engineering, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul, 06974, Republic of Korea
| | - Hyun-Jeong Ha
- Department of Plastic and Reconstructive Surgery, CHA Bundang Medical Center, CHA University School of Medicine, 59 Yatap-ro, Bundang-gu, Seongnam, 13496, Republic of Korea
| | - Ji-Won Jung
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam, 13488, Republic of Korea
| | - Seung-Woon Baek
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam, 13488, Republic of Korea
| | - Seung Hwa Baek
- CHA Advanced Research Institute Center for Research & Development, Histological Analysis Team, 335 Pangyo-ro, Bundang-gu, Seongnam, 13488, Republic of Korea
| | - Tae-Hyung Kim
- School of Integrative Engineering, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul, 06974, Republic of Korea
| | - Jung Chan Lee
- Department of Biomedical Engineering, College of Medicine, Seoul National University, 103 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea.
| | - Euna Hwang
- Department of Plastic and Reconstructive Surgery, CHA Gangnam Medical Center, 566 Nonhyun-ro, Gangnam-gu, Seoul, 06135, Republic of Korea.
| | - Dong Keun Han
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam, 13488, Republic of Korea.
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Park H, Yu HT, Kim TH, Park J, Park JK, Kang KW, Shim J, Kim JB, Kim J, Choi EK, Park HW, Lee YS, Joung B. Resting heart rate and cardiovascular outcomes in patients with atrial fibrillation: CODE-AF registry. Europace 2022. [DOI: 10.1093/europace/euac053.182] [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: None.
Background
The prognostic significance of resting heart rate and its therapeutic target in atrial fibrillation (AF) is uncertain.
Purpose
The aim of this study was to investigate the relationships between resting heart rate and cardiovascular outcomes in patients with AF.
Methods
A total of 8,886 patients with AF was included from the COmparison study of Drugs for symptom control and complication prEvention of AF (CODE-AF) registry. Patients were categorized according to baseline heart rate, and cardiovascular outcomes were accessed during a median follow-up of 30 months. The primary outcome was a composite of cardiovascular death, hospitalization due to heart failure, and myocardial infarction/critical limb ischemia.
Results
Compared to heart rate ≥100 beats per minute (bpm), heart rate 80-99 bpm was associated with the lowest risk of primary outcome (adjusted hazard ratio [HR] 0.56, 95% confidence interval [CI] 0.40-0.79, p=0.001). In subgroup of patients with heart failure with preserved ejection fraction (HFpEF), heart rate between 80-99 bpm was associated with reduced risk of primary outcome compared to heart rate ≥100 bpm (HR 0.40, 95% CI 0.16-0.98, p=0.045). However, in patients with heart failure with reduced ejection fraction (HFrEF), there was no association between resting heart rate and cardiovascular outcomes (P for interaction 0.001).
Conclusion
Resting heart rate was associated with cardiovascular outcomes in patients with AF, and those with a resting heart rate between 80-99 bpm had the lowest risk of adverse events. The impact of resting heart rate on adverse events persisted in patients with concomitant HFpEF but was not apparent in those with concomitant HFrEF.
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Affiliation(s)
- H Park
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - HT Yu
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - TH Kim
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - J Park
- Ewha Womans University School of Medicine, Seoul, Korea (Republic of)
| | - JK Park
- Hanyang University Seoul Hospital, Seoul, Korea (Republic of)
| | - KW Kang
- Eulji University College of Medicine, Seoul, Korea (Republic of)
| | - J Shim
- Korea University Medical Center, Seoul, Korea (Republic of)
| | - JB Kim
- Kyung Hee University Hospital, Seoul, Korea (Republic of)
| | - J Kim
- University of Ulsan College of Medicine, Seoul, Korea (Republic of)
| | - EK Choi
- Seoul National University Hospital, Seoul, Korea (Republic of)
| | - HW Park
- Chonnam National University School of Medicine, Gwangju, Korea (Republic of)
| | - YS Lee
- Daegu Catholic University Medical Center, Daegu, Korea (Republic of)
| | - B Joung
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
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Yang PS, Kim DH, Jang E, Yu HT, Kim TH, Pak HN, Lee MH, Sung JH, Joung B. Comparative effectiveness of early rhythm control versus rate control for cardiovascular outcomes according to sex in patients with atrial fibrillation. Europace 2022. [DOI: 10.1093/europace/euac053.184] [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: 11/14/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): Ministry of Health & Welfare, Republic of Korea
Background
Rhythm control is associated with better cardiovascular outcomes than usual care among patients recently diagnosed with atrial fibrillation (AF). However, there are limited data on the outcomes of AF ablation according to sex. The purpose of this study was to evaluate gender differences in the effects of early rhythm control compared to rate control on the primary composite outcome of cardiovascular death, ischaemic stroke, hospitalisation for heart failure (HF), or myocardial infarction.
Methods
We conducted a retrospective population-based cohort study including 22635 patients with AF newly treated with rhythm control (antiarrhythmic drugs or ablation) or rate control in 2011-2015 from the Korean National Health Insurance Service database. Propensity overlap weighting was used.
Results
Among patients with early AF treatment (initiated within 1 year since diagnosis), compared with rate control, rhythm control was associated with a similar lower risk of the primary composite outcome both women (weighted incidence rate per 100 person-years: 8.68 in rhythm control vs. 10.3 in rate control; hazard ratio [HR] 0.79, 95% confidence interval [CI] 0.69 to 0.90; P<0.001) and men (weighted incidence rate per 100 person-years: 6.33 in rhythm control vs. 8.32 in rate control; HR 0.77, 95% CI 0.67 to 0.88; P<0.001). However, the effective initiation time for rhythm control therapy was within 6 and 11 months after AF diagnosis in female and male patients, respectively. Moreover, the effective times for other outcomes were different between genders (hospitalization for HF; female within 2 months, male within 9 months/ ischemic stroke; female within 11 months, male immediately).
Conclusions
Early initiation of rhythm control was associated with a lower risk of primary outcome in both genders. However, the effective rhythm control treatment initiation time for primary outcome, stroke and HF-related admission was different in both genders. For rhythm control treatment to be effective, women should start treatment earlier than men.
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Affiliation(s)
- PS Yang
- CHA University, Seongnam, Korea (Republic of)
| | - DH Kim
- Yonsei University College of Medicine, Cardiology, Seoul, Korea (Republic of)
| | - E Jang
- Yonsei University College of Medicine, Cardiology, Seoul, Korea (Republic of)
| | - HT Yu
- Yonsei University College of Medicine, Cardiology, Seoul, Korea (Republic of)
| | - TH Kim
- Yonsei University College of Medicine, Cardiology, Seoul, Korea (Republic of)
| | - HN Pak
- Yonsei University College of Medicine, Cardiology, Seoul, Korea (Republic of)
| | - MH Lee
- Yonsei University College of Medicine, Cardiology, Seoul, Korea (Republic of)
| | - JH Sung
- CHA University, Seongnam, Korea (Republic of)
| | - B Joung
- Yonsei University College of Medicine, Cardiology, Seoul, Korea (Republic of)
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Yu G, Kim TH, Yu HT, Joung BY, Pak HN, Lee MH. Learning curve of left bundle branch area pacing with standard stylet-driven pacing leads: a single center prospective observational study in Korea. Europace 2022. [DOI: 10.1093/europace/euac053.426] [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: 11/15/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background
Although cardiac pacing is an essential therapy for bradycardia, conventional right ventricular pacing (CRVP) can cause electrical-mechanical dyssynchrony. Left Bundle Branch Area Pacing (LBBAP) is a new conduction system pacing strategy that includes a normal conduction system and therefore maintains synchronous ventricular contraction. Most of the experience with LBBAP is done in a lumen-less lead with fixed helix design, and this device is not available in sometimes.
Purpose
This study aimed to evaluate the learning curve of LBBAP using standard stylet-driven lead with extendable helix design.
Methods
This study enrolled patients who underwent permanent cardiac pacemaker implantation at a University Hospital in South Korea from December 2020 to October 2021. LBBAP was performed with a 5.6Fr stylet-driven pacing lead with an extendable helix. The learning curve was assessed by analyzing fluoroscopy time and procedure time.
Results
In 65 patients who underwent LBBAP during the observation period, mean fluoroscopy time and procedural time were 17.1 ± 17.2 minutes and 64.2 ± 33.5 minutes, respectively in this study. The learning curve for achieving LBBAP appears to plateau after around 24th case with a progressive reduction in procedure time. This is a significantly shorter period of time when compared to the previously reported learning curves of his bundle pacing (30-50cases), previously developed conduction system pacing strategy.
Conclusion
During initial experience with LBBAP, fluoroscopy and procedural time continue to improve with operator experience. For physicians who are experienced at cardiac pacemaker implantation, the steepest part of the learning curve of LBBAP appears to be over the first 20-25 cases.
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Affiliation(s)
- G Yu
- Yonsei University, Seoul, Korea (Republic of)
| | - TH Kim
- Yonsei University, Seoul, Korea (Republic of)
| | - HT Yu
- Yonsei University, Seoul, Korea (Republic of)
| | - BY Joung
- Yonsei University, Seoul, Korea (Republic of)
| | - HN Pak
- Yonsei University, Seoul, Korea (Republic of)
| | - MH Lee
- Yonsei University, Seoul, Korea (Republic of)
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Kim JH, Kim SE, Song DS, Kim HY, Yoon EL, Kim TH, Jung YK, Suk KT, Jun BG, Yim HJ, Kwon JH, Lee SW, Kang SH, Kim MY, Jeong SW, Jang JY, Yoo JJ, Kim SG, Jin YJ, Cheon GJ, Kim BS, Seo YS, Kim HS, Sinn DH, Chung WJ, Kim HY, Lee HA, Nam SW, Kim IH, Suh JI, Kim JH, Chae HB, Sohn JH, Cho JY, Kim YJ, Yang JM, Park JG, Kim W, Cho HC, Kim DJ. Platelet-to-White Blood Cell Ratio Is Associated with Adverse Outcomes in Cirrhotic Patients with Acute Deterioration. J Clin Med 2022; 11:jcm11092463. [PMID: 35566588 PMCID: PMC9103428 DOI: 10.3390/jcm11092463] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 04/23/2022] [Accepted: 04/24/2022] [Indexed: 02/05/2023] Open
Abstract
Background: The platelet-to-white blood cell ratio (PWR) is a hematologic marker of the systemic inflammatory response. Recently, the PWR was revealed to have a role as an independent prognostic factor for mortality in patients with hepatitis B virus (HBV)-related acute-on-chronic failure (ACLF) and HBV-related liver cirrhosis (LC) with acute decompensation (AD). However, the prognostic role of the PWR still needs to be investigated in LC patients with AD. In this study, we analyzed whether the PWR could stratify the risk of adverse outcomes (death or liver transplantation (LT)) in these patients. Methods: A prospective cohort of 1670 patients with AD of liver cirrhosis ((age: 55.2 ± 7.8, male = 1226 (73.4%)) was enrolled and evaluated for 28-day and overall adverse outcomes. Results: During a median follow-up of 8.0 months (range, 1.9−15.5 months), 424 (25.4%) patients had adverse outcomes (death = 377, LT = 47). The most common etiology of LC was alcohol use (69.7%). The adverse outcome rate was higher for patients with a PWR ≤ 12.1 than for those with a PWR > 12.1. A lower PWR level was a prognostic factor for 28-day adverse outcomes (PWR: hazard ratio 1.707, p = 0.034) when adjusted for the etiology of cirrhosis, infection, ACLF, and the MELD score. In the subgroup analysis, the PWR level stratified the risk of 28-day adverse outcomes regardless of the presence of ACLF or the main form of AD but not for those with bacterial infection. Conclusions: A lower PWR level was associated with 28-day adverse outcomes, indicating that the PWR level can be a useful and simple tool for stratifying the risk of 28-day adverse outcomes in LC patients with AD.
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Affiliation(s)
- Jung-Hee Kim
- Department of Internal Medicine, Hallym University College of Medicine, Chuncheon 24252, Korea; (J.-H.K.); (K.-T.S.); (H.-S.K.); (D.-J.K.)
- Institute for Liver and Digestive Diseases, Hallym University, Chuncheon 24252, Korea
| | - Sung-Eun Kim
- Department of Internal Medicine, Hallym University College of Medicine, Chuncheon 24252, Korea; (J.-H.K.); (K.-T.S.); (H.-S.K.); (D.-J.K.)
- Institute for Liver and Digestive Diseases, Hallym University, Chuncheon 24252, Korea
- Correspondence: ; Tel.: +82-31-380-3708
| | - Do-Seon Song
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (D.-S.S.); (H.-Y.K.); (J.-H.K.); (S.-W.L.); (J.-M.Y.)
| | - Hee-Yeon Kim
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (D.-S.S.); (H.-Y.K.); (J.-H.K.); (S.-W.L.); (J.-M.Y.)
| | - Eileen L. Yoon
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul 04763, Korea; (E.L.Y.); (J.-H.S.)
| | - Tae-Hyung Kim
- Department of Internal Medicine, Korea University Ansan Hospital, Ansan 15355, Korea; (T.-H.K.); (Y.-K.J.); (H.-J.Y.); (Y.-S.S.); (J.-H.K.)
| | - Young-Kul Jung
- Department of Internal Medicine, Korea University Ansan Hospital, Ansan 15355, Korea; (T.-H.K.); (Y.-K.J.); (H.-J.Y.); (Y.-S.S.); (J.-H.K.)
| | - Ki-Tae Suk
- Department of Internal Medicine, Hallym University College of Medicine, Chuncheon 24252, Korea; (J.-H.K.); (K.-T.S.); (H.-S.K.); (D.-J.K.)
- Institute for Liver and Digestive Diseases, Hallym University, Chuncheon 24252, Korea
| | - Baek-Gyu Jun
- Department of Internal Medicine, Inje University Sanggye Paik Hospital, Seoul 01757, Korea; (B.-G.J.); (S.-H.K.)
| | - Hyung-Joon Yim
- Department of Internal Medicine, Korea University Ansan Hospital, Ansan 15355, Korea; (T.-H.K.); (Y.-K.J.); (H.-J.Y.); (Y.-S.S.); (J.-H.K.)
| | - Jung-Hyun Kwon
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (D.-S.S.); (H.-Y.K.); (J.-H.K.); (S.-W.L.); (J.-M.Y.)
| | - Sung-Won Lee
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (D.-S.S.); (H.-Y.K.); (J.-H.K.); (S.-W.L.); (J.-M.Y.)
| | - Seong-Hee Kang
- Department of Internal Medicine, Inje University Sanggye Paik Hospital, Seoul 01757, Korea; (B.-G.J.); (S.-H.K.)
| | - Moon-Young Kim
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju 26426, Korea;
| | - Soung-Won Jeong
- Department of Internal Medicine, Soonchunhyang University College of Medicine, Seoul 04401, Korea; (S.-W.J.); (J.-Y.J.)
| | - Jae-Young Jang
- Department of Internal Medicine, Soonchunhyang University College of Medicine, Seoul 04401, Korea; (S.-W.J.); (J.-Y.J.)
| | - Jeong-Ju Yoo
- Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon 14584, Korea; (J.-J.Y.); (S.-G.K.)
| | - Sang-Gyune Kim
- Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon 14584, Korea; (J.-J.Y.); (S.-G.K.)
| | - Young-Joo Jin
- Department of Internal Medicine, Inha University Hospital, Inha University School of Medicine, Incheon 22212, Korea;
| | - Gab-Jin Cheon
- Department of Internal Medicine, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung 25440, Korea;
| | - Byung-Seok Kim
- Department of Internal Medicine, Daegu Catholic University School of Medicine, Daegu 42472, Korea;
| | - Yeon-Seok Seo
- Department of Internal Medicine, Korea University Ansan Hospital, Ansan 15355, Korea; (T.-H.K.); (Y.-K.J.); (H.-J.Y.); (Y.-S.S.); (J.-H.K.)
| | - Hyung-Su Kim
- Department of Internal Medicine, Hallym University College of Medicine, Chuncheon 24252, Korea; (J.-H.K.); (K.-T.S.); (H.-S.K.); (D.-J.K.)
- Institute for Liver and Digestive Diseases, Hallym University, Chuncheon 24252, Korea
| | - Dong-Hyun Sinn
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06531, Korea;
| | - Woo-Jin Chung
- Department of Internal Medicine, Keimyung University School of Medicine, Daegu 42601, Korea;
| | - Hwi-Young Kim
- Department of Internal Medicine, College of Medicine, Ewha Womans University, Seoul 07804, Korea; (H.-Y.K.); (H.-A.L.)
| | - Han-Ah Lee
- Department of Internal Medicine, College of Medicine, Ewha Womans University, Seoul 07804, Korea; (H.-Y.K.); (H.-A.L.)
| | - Seung-Woo Nam
- Department of Internal Medicine, National Medical Center, Seoul 04564, Korea;
| | - In-Hee Kim
- Department of Internal Medicine, Chonbuk National University Hospital, Chonbuk National University Medical School, Jeonju 54896, Korea;
| | - Jung-Il Suh
- Department of Gastroenterology, Dongguk University College of Medicine, Kyongju 38067, Korea;
| | - Ji-Hoon Kim
- Department of Internal Medicine, Korea University Ansan Hospital, Ansan 15355, Korea; (T.-H.K.); (Y.-K.J.); (H.-J.Y.); (Y.-S.S.); (J.-H.K.)
| | - Hee-Bok Chae
- Department of Internal Medicine, Medical Research Institute, Chungbuk National University College of Medicine, Cheongju 28644, Korea;
| | - Joo-Hyun Sohn
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul 04763, Korea; (E.L.Y.); (J.-H.S.)
| | - Ju-Yeon Cho
- Department of Internal Medicine, College of Medicine, Chosun University, Gwangju 61452, Korea;
| | - Yoon-Jun Kim
- Department of Internal Medicine, Liver Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea;
| | - Jin-Mo Yang
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (D.-S.S.); (H.-Y.K.); (J.-H.K.); (S.-W.L.); (J.-M.Y.)
| | - Jung-Gil Park
- Department of Internal Medicine, Yeungnam University College of Medicine, Daegu 42415, Korea;
| | - Won Kim
- Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul 07061, Korea;
| | - Hyun-Chin Cho
- Department of Internal Medicine, Gyeongsang National University Hospital, Jinju 52727, Korea;
| | - Dong-Joon Kim
- Department of Internal Medicine, Hallym University College of Medicine, Chuncheon 24252, Korea; (J.-H.K.); (K.-T.S.); (H.-S.K.); (D.-J.K.)
- Institute for Liver and Digestive Diseases, Hallym University, Chuncheon 24252, Korea
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Cho YW, Jee S, Suhito IR, Lee JH, Park CG, Choi KM, Kim TH. Single metal-organic framework-embedded nanopit arrays: A new way to control neural stem cell differentiation. Sci Adv 2022; 8:eabj7736. [PMID: 35442746 PMCID: PMC9020781 DOI: 10.1126/sciadv.abj7736] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 03/04/2022] [Indexed: 05/31/2023]
Abstract
Stable and continuous supply of essential biomolecules is critical to mimic in vivo microenvironments wherein spontaneous generation of various cell types occurs. Here, we report a new platform that enables highly efficient neuronal cell generation of neural stem cells using single metal-organic framework (MOF) nanoparticle-embedded nanopit arrays (SMENA). By optimizing the physical parameters of homogeneous periodic nanopatterns, each nanopit can confine single nMOFs (UiO-67) that are specifically designed for long-term storage and release of retinoic acid (RA). The SMENA platform successfully inhibited physical interaction with cells, which contributed to remarkable stability of the nMOF (RA⊂UiO-67) structure without inducing nanoparticle-mediated toxicity issues. Owing to the continuous and long-term supply of RA, the neural stem cells showed enhanced mRNA expressions of various neurogenesis-related activities. The developed SMENA platform can be applied to other stem cell sources and differentiation lineages and is therefore useful for various stem cell-based regenerative therapies.
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Affiliation(s)
- Yeon-Woo Cho
- School of Integrative Engineering, Chung-Ang University, 84 Heukseuk-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Seohyeon Jee
- Department of Chemical and Biological Engineering, Sookmyung Women’s University, 100 Cheongpa-ro 47-gil, Yongsan-gu, Seoul 04310, Republic of Korea
| | - Intan Rosalina Suhito
- School of Integrative Engineering, Chung-Ang University, 84 Heukseuk-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Jeong-Hyeon Lee
- School of Integrative Engineering, Chung-Ang University, 84 Heukseuk-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Chun Gwon Park
- Department of Biomedical Engineering, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
- Department of Intelligent Precision Healthcare Convergence, SKKU Institute for Convergence, ungkyunkwan University (SKKU) , Suwon, Gyeonggi 16419, Republic of Korea
| | - Kyung Min Choi
- Department of Chemical and Biological Engineering, Sookmyung Women’s University, 100 Cheongpa-ro 47-gil, Yongsan-gu, Seoul 04310, Republic of Korea
- LabInCube Co. Ltd., A304-C2, 45, Yangcheong 4-gil, Ochang-eup, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do, Republic of Korea
| | - Tae-Hyung Kim
- School of Integrative Engineering, Chung-Ang University, 84 Heukseuk-ro, Dongjak-gu, Seoul 06974, Republic of Korea
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Jegal Y, Park JS, Kim SY, Yoo H, Jeong SH, Song JW, Lee JH, Lee HL, Choi SM, Kim YW, Kim YH, Choi HS, Lee J, Uh ST, Kim TH, Kim SH, Lee WY, Kim YH, Lee HK, Lee EJ, Heo EY, Yang SH, Kang HK, Chung MP. Clinical Features, Diagnosis, Management, and Outcomes of Idiopathic Pulmonary Fibrosis in Korea: Analysis of the Korea IPF Cohort (KICO) Registry. Tuberc Respir Dis (Seoul) 2022; 85:185-194. [PMID: 34902237 PMCID: PMC8987666 DOI: 10.4046/trd.2021.0123] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Accepted: 12/13/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The Korea Interstitial Lung Disease Study Group has made a new nationwide idiopathic pulmonary fibrosis (IPF) registry because the routine clinical practice has changed due to new guidelines and newly developed antifibrotic agents in the recent decade. The aim of this study was to describe recent clinical characteristics of Korean IPF patients. METHODS Both newly diagnosed and following IPF patients diagnosed after the previous registry in 2008 were enrolled. Survival analysis was only conducted for patients diagnosed with IPF after 2016 because antifibrotic agents started to be covered by medical insurance of Korea in October 2015. RESULTS A total of 2,139 patients were analyzed. Their mean age at diagnosis was 67.4±9.3 years. Of these patients, 76.1% were males, 71.0% were ever-smokers, 14.4% were asymptomatic at the time of diagnosis, and 56.9% were at gender-agephysiology stage I. Occupational toxic material exposure was reported in 534 patients. The mean forced vital capacity was 74.6% and the diffusing capacity for carbon monoxide was 63.6%. Treatment with pirfenidone was increased over time: 62.4% of IPF patients were treated with pirfenidone initially. And 79.2% of patients were treated with antifiboritics for more than three months during the course of the disease since 2016. Old age, acute exacerbation, treatment without antifibrotics, and exposure to wood and stone dust were associated with higher mortality. CONCLUSION In the recent Korean IPF registry, the percentage of IPF patients treated with antifibrotics was increased compared to that in the previous IPF registry. Old age, acute exacerbation, treatment without antifibrotics, and exposure to wood and stone dust were associated with higher mortality.
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Affiliation(s)
- Yangjin Jegal
- Department of Internal Medicine, Ulsan University Hospital, University of Ulsan, College of Medicine, Ulsan, Korea
| | - Jong Sun Park
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Song Yee Kim
- Division of Pulmonology, Department of Internal Medicine, Institute of Chest Diseases, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Hongseok Yoo
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Sung Hwan Jeong
- Department of Internal Medicine, Gil Medical Center, Gachon Medical School, Incheon, Korea
| | - Jin Woo Song
- Division of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jae Ha Lee
- Division of Pulmonology, Department of Internal Medicine, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - Hong Lyeol Lee
- Department of Internal Medicine, Inha University School of Medicine, Incheon, Korea
| | - Sun Mi Choi
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Young Whan Kim
- Departement of Respiratory-Allergy and Clinical Immunology, Konkuk University Hospital, Konkuk University School of Medicine, Seoul, Korea
| | - Yong Hyun Kim
- Division of Allergy and Pulmonology, Department of Internal Medicine, Bucheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Bucheon, Korea
| | - Hye Sook Choi
- Department of Pulmonary and Critical Care Medicine, Kyung Hee Medical Center, Kyung Hee University School of Medicine, Seoul, Korea
| | - Jongmin Lee
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Soo-Taek Uh
- Division of Pulmonary and Allergy Medicine, Department of Internal Medicine, Soonchunhyang University Hospital, Seoul, Korea
| | - Tae-Hyung Kim
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Korea
| | - Sang-Heon Kim
- Division of Pulmonary Medicine and Allergy, Department of Internal Medicine, Hanyang University Hospital, Hanyang University College of Medicine, Seoul, Korea
| | - Won-Yeon Lee
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Internal Medicine, Yonsei University Wonju Severance Christian Hospital, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Yee Hyung Kim
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kyung Hee University Hospital at Gangdong, Kyung Hee University School of Medicine, Seoul, Korea
| | - Hyun-kyung Lee
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Busan Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - Eun Joo Lee
- Division of Respiratory and Critical Care Medicine, Department of Internal Medicine, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Korea
| | - Eun Young Heo
- Division of Pulmonary and Critical Care, Department of Internal Medicine, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, Seoul, Korea
| | - Sei Hoon Yang
- Department of Internal Medicine, Wonkwang University Hospital, Wonkwang University College of Medicine, Iksan, Korea
| | - Hyung Koo Kang
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Inje University Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Korea
| | - Man Pyo Chung
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
- Address for correspondence: Man Pyo Chung, M.D., Ph.D. Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul 06351, Korea Phone: 82-2-3410-3429, Fax: 82-2-3410-3849, E-mail:
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Lee GY, Shin GW, Park HY, Yoon HK, Kim TH, Lee A, Heo YJ, Lee YJ, Han JY, Park YM. Sonographic Features of Breast Fibroepithelial Masses: Distinguishing Fibroadenoma from Phyllodes Tumour. Hong Kong Journal of Radiology 2022. [DOI: 10.12809/hkjr2217333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- GY Lee
- Department of Radiology, Busan Paik Hospital, Inje University College of Medicine, South Korea
| | - GW Shin
- Department of Radiology, Busan Paik Hospital, Inje University College of Medicine, South Korea
| | - HY Park
- Department of Pathology, Busan Paik Hospital, Inje University College of Medicine, South Korea
| | - HK Yoon
- Department of Pathology, Busan Paik Hospital, Inje University College of Medicine, South Korea
| | - TH Kim
- Department of Surgery, Busan Paik Hospital, Inje University College of Medicine, South Korea
| | - A Lee
- Department of Surgery, Busan Paik Hospital, Inje University College of Medicine, South Korea
| | - YJ Heo
- Department of Radiology, Busan Paik Hospital, Inje University College of Medicine, South Korea
| | - YJ Lee
- Department of Radiology, Busan Paik Hospital, Inje University College of Medicine, South Korea
| | - JY Han
- Department of Radiology, Busan Paik Hospital, Inje University College of Medicine, South Korea
| | - YM Park
- Department of Radiology, Busan Paik Hospital, Inje University College of Medicine, South Korea
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Park JH, Cho YW, Kim TH. Recent Advances in Surface Plasmon Resonance Sensors for Sensitive Optical Detection of Pathogens. Biosensors (Basel) 2022; 12:bios12030180. [PMID: 35323450 PMCID: PMC8946561 DOI: 10.3390/bios12030180] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 03/09/2022] [Accepted: 03/11/2022] [Indexed: 05/06/2023]
Abstract
The advancement of science and technology has led to the recent development of highly sensitive pathogen biosensing techniques. The effective treatment of pathogen infections requires sensing technologies to not only be sensitive but also render results in real-time. This review thus summarises the recent advances in optical surface plasmon resonance (SPR) sensor technology, which possesses the aforementioned advantages. Specifically, this technology allows for the detection of specific pathogens by applying nano-sized materials. This review focuses on various nanomaterials that are used to ensure the performance and high selectivity of SPR sensors. This review will undoubtedly accelerate the development of optical biosensing technology, thus allowing for real-time diagnosis and the timely delivery of appropriate treatments as well as preventing the spread of highly contagious pathogens.
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Shin SH, Kwon SO, Kim V, Silverman EK, Kim TH, Kim DK, Hwang YI, Yoo KH, Kim WJ, Park HY. Association of body mass index and COPD exacerbation among patients with chronic bronchitis. Respir Res 2022; 23:52. [PMID: 35255901 PMCID: PMC8900381 DOI: 10.1186/s12931-022-01957-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 02/11/2022] [Indexed: 11/25/2022] Open
Abstract
Background and objective Chronic obstructive pulmonary disease (COPD) patients with a body mass index (BMI) < 25 kg/m2 are prone to develop adverse event of pharmacological treatment for frequent exacerbation. As chronic bronchitis (CB) is one of the strong risk factors of exacerbation, we investigated the associations between BMI and COPD exacerbations in patients with CB. Methods Patients with COPD were included from the Korean COPD Subgroup Study (KOCOSS), a multicenter observational cohort study. CB was defined using the St. George’s Respiratory Questionnaire and the participants were categorized according to BMI cut-off of 25 kg/m2. Exacerbations during a 1-year follow-up were compared among four groups: non-CB with BMI ≥ 25 kg/m2, non-CB with BMI < 25 kg/m2, CB with BMI ≥ 25 kg/m2, and CB with BMI < 25 kg/m2. Results Among the 1264 patients with COPD, 451 (35.7%) had CB and 353 (27.9%) had both CB and BMI < 25 kg/m2. The COPD exacerbation risk increased across the non-CB with BMI < 25 kg/m2, CB with BMI ≥ 25 kg/m2, and CB with BMI < 25 kg/m2 groups (adjusted incidence rate ratio [95% confidence interval] 1.21 [0.89–1.62], 1.20 [0.77–1.88], and 1.41 [1.02–1.91], respectively, compared to the non-CB with BMI ≥ 25 kg/m2 group). Conclusions COPD patients having both CB and a BMI < 25 kg/m2 are at higher risk of exacerbations. Considering that a BMI < 25 kg/m2 often limits treatment options preventing exacerbations, modified guidelines might be needed for non-obese CB patients in Asia. Supplementary Information The online version contains supplementary material available at 10.1186/s12931-022-01957-3.
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Park DW, Kim YJ, Sung YK, Chung SJ, Yeo Y, Park TS, Lee H, Moon JY, Kim SH, Kim TH, Yoon HJ, Sohn JW. TNF inhibitors increase the risk of nontuberculous mycobacteria in patients with seropositive rheumatoid arthritis in a mycobacterium tuberculosis endemic area. Sci Rep 2022; 12:4003. [PMID: 35256729 PMCID: PMC8901670 DOI: 10.1038/s41598-022-07968-w] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 03/01/2022] [Indexed: 11/09/2022] Open
Abstract
The aim of this study is to examine the impact of tumor necrosis factor inhibitors (TNFI) on nontuberculous mycobacterium (NTM) infection in rheumatoid arthritis (RA) patients in a mycobacterium tuberculosis (MTB) endemic area. We selected 1089 TNFI-treated RA patients and 4356 untreated RA patients using propensity-matching analysis according to age, gender, and Charlson comorbidity index using the Korean National Health Insurance Service database from July 2009 to December 2010. Both groups were followed-up until the end of 2016 to measure the incidence of mycobacterial diseases. The incidence rate of NTM in TNFI-treated RA group was similar to those of MTB (328.1 and 340.9 per 100,000 person-years, respectively). The adjusted hazard ratio (aHR) of NTM for TNFI-treated RA compared to untreated RA was 1.751(95% CI 1.105-2.774). The risk of TNFI-associated NTM in RA was 2.108-fold higher among women than men. The age-stratified effects of TNFI on NTM development were significantly high in RA patients aged 50-65 years (aHR 2.018). RA patients without comorbidities had a higher incidence of NTM following TNFI treatment (aHR 1.742). This real-world, observational study highlights the need to increase awareness of NTM in TNFI-treated RA patients in an MTB endemic area.
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Affiliation(s)
- Dong Won Park
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Republic of Korea. .,Department of Internal Medicine, Hanyang University College of Medicine, 222-1 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea.
| | - Yun Jin Kim
- Biostatistical Consulting and Research Lab, Medical Research Collaborating Center, Hanyang University, Seoul, Republic of Korea
| | - Yoon-Kyoung Sung
- Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Republic of Korea
| | - Sung Jun Chung
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Republic of Korea
| | - Yoomi Yeo
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Republic of Korea
| | - Tai Sun Park
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Republic of Korea
| | - Hyun Lee
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Republic of Korea
| | - Ji-Yong Moon
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Republic of Korea
| | - Sang-Heon Kim
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Republic of Korea
| | - Tae-Hyung Kim
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Republic of Korea
| | - Ho Joo Yoon
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Republic of Korea
| | - Jang Won Sohn
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Republic of Korea
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Byun MJ, Lim J, Kim SN, Park DH, Kim TH, Park W, Park CG. Advances in Nanoparticles for Effective Delivery of RNA Therapeutics. BioChip J 2022; 16:128-145. [PMID: 35261724 PMCID: PMC8891745 DOI: 10.1007/s13206-022-00052-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 01/24/2022] [Accepted: 02/06/2022] [Indexed: 12/17/2022]
Abstract
RNA therapeutics, including messenger RNA (mRNA) and small interfering RNA (siRNA), are genetic materials that mediate the translation of genetic direction from genes to induce or inhibit specific protein production. Although the interest in RNA therapeutics is rising globally, the absence of an effective delivery system is an obstacle to the clinical application of RNA therapeutics. Additionally, immunogenicity, short duration of protein expression, unwanted enzymatic degradation, and insufficient cellular uptake could limit the therapeutic efficacy of RNA therapeutics. In this regard, novel platforms based on nanoparticles are crucial for delivering RNAs to the targeted site to increase efficiency without toxicity. In this review, the most recent status of nanoparticles as RNA delivery vectors, with a focus on polymeric nanoparticles, peptide-derived nanoparticles, inorganic nanoparticles, and hybrid nanoparticles, is discussed. These nanoparticular platforms can be utilized for safe and effective RNA delivery to augment therapeutic effects. Ultimately, RNA therapeutics encapsulated in nanoparticle-based carriers will be used to treat many diseases and save lives.
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Affiliation(s)
- Min Ji Byun
- Department of Biomedical Engineering, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), Suwon, Gyeonggi 16419 Republic of Korea
- Department of Intelligent Precision Healthcare Convergence, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), Suwon, Gyeonggi 16419 Republic of Korea
| | - Jaesung Lim
- Department of Biomedical Engineering, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), Suwon, Gyeonggi 16419 Republic of Korea
- Department of Intelligent Precision Healthcare Convergence, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), Suwon, Gyeonggi 16419 Republic of Korea
| | - Se-Na Kim
- Institute of Medical and Biological Engineering, Medical Research Center, Seoul National University, Seoul, 03080 Republic of Korea
| | - Dae-Hwan Park
- Department of Engineering Chemistry, Chungbuk National University, Cheongju, Chungbuk 28644 Republic of Korea
| | - Tae-Hyung Kim
- School of Integrative Engineering, Chung-Ang University, 84, Heukseok-ro, Dongjak-gu, Seoul, 06974 Republic of Korea
| | - Wooram Park
- Department of Integrative Biotechnology, Sungkyunkwan University (SKKU), Suwon, Gyeonggi 16419 Republic of Korea
| | - Chun Gwon Park
- Department of Biomedical Engineering, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), Suwon, Gyeonggi 16419 Republic of Korea
- Department of Intelligent Precision Healthcare Convergence, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), Suwon, Gyeonggi 16419 Republic of Korea
- Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon, Gyeonggi 16419 Republic of Korea
- Center for Neuroscience Imaging Research, Institute for Basic Science (IBS), Suwon, Gyeonggi 16419 Republic of Korea
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85
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Kim T, Lee H, Capo‐Chichi J, Chang MH, Yoo YS, Basi G, Ketela T, Smith AC, Tierens A, Zhang Z, Minden MD, Kim DDH. Single cell proteogenomic sequencing identifies a relapse-fated AML subclone carrying FLT3-ITD with CN-LOH at chr13q. EJHaem 2022; 3:426-433. [PMID: 35846029 PMCID: PMC9175792 DOI: 10.1002/jha2.390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 01/11/2022] [Accepted: 01/12/2022] [Indexed: 01/09/2023]
Abstract
Internal tandem duplication of the Feline McDonough Sarcoma (FMS)-like tyrosine kinase 3 (FLT3-ITD) is one of the most clinically relevant mutations in acute myeloid leukemia (AML), with a high FLT3-ITD allelic ratio (AR) (≥0.5) being strongly associated with poor prognosis. FLT3-ITDs are heterogeneous, varying in size and location, with some patients having multiple FLT3-ITDs. Bulk cell-based approaches are limited in their ability to reveal the clonal structure in such cases. Using single-cell proteogenomic sequencing (ScPGseq), we attempted to identify a relapse-fated subclone in an AML case with mutations in WT1, NPM1, and FLT3 tyrosine kinase domain and two FLT3-ITDs (21 bp and 39 bp) (low AR) at presentation, then relapsed only with WT1 and NPM1 mutations and one FLT3-ITD (high AR). This relapse-fated subclone at presentation (∼2.1% of sequenced cells) was characterized by the presence of a homozygous 21 bp FLT3-ITD resulting from copy neutral loss of heterozygosity (CN-LOH) of chr13q and an aberrant, immature myeloid cell surface signature, contrast to the cell surface phenotype at presentation. In contrast to results from multicolor flow-cytometry, ScPGseq not only enabled the early detection of rare relapse-fated subclone showing immature myeloid signature but also highlighted the presence of homozygous 21 bp FLT3-ITDs in the clone at presentation.
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Affiliation(s)
- TaeHyung Kim
- Division of Medical Oncology and HematologyPrincess Margaret Cancer CentreTorontoOntarioCanada,Department of Computer ScienceUniversity of TorontoTorontoOntarioCanada,The Donnelly Centre for Cellular and Biomolecular ResearchUniversity of TorontoTorontoOntarioCanada
| | - Hyewon Lee
- Division of Medical Oncology and HematologyPrincess Margaret Cancer CentreTorontoOntarioCanada,Center for Hematologic MalignanciesNational Cancer CenterGoyangRepublic of Korea
| | - Jose‐Mario Capo‐Chichi
- Department of Clinical Laboratory GeneticsGenome Diagnostics Laboratory Medicine ProgramUniversity of TorontoTorontoOntarioCanada
| | - Myung Hee Chang
- Division of Medical Oncology and HematologyPrincess Margaret Cancer CentreTorontoOntarioCanada,Division of Oncology‐HematologyDepartment of Internal MedicineNational Health Insurance Service Ilsan HospitalGoyangRepublic of Korea
| | - Young Seok Yoo
- Division of Medical Oncology and HematologyPrincess Margaret Cancer CentreTorontoOntarioCanada
| | - Gurbaksh Basi
- Princess Margaret Genomics CentrePrincess Margaret Cancer CentreTorontoOntarioCanada
| | - Troy Ketela
- Princess Margaret Genomics CentrePrincess Margaret Cancer CentreTorontoOntarioCanada
| | - Adam C. Smith
- Laboratory Medicine ProgramUniversity Health NetworkTorontoOntarioCanada,Department of Laboratory Medicine and PathobiologyUniversity of TorontoTorontoOntarioCanada
| | - Anne Tierens
- Laboratory Medicine ProgramUniversity Health NetworkTorontoOntarioCanada,Department of Laboratory Medicine and PathobiologyUniversity of TorontoTorontoOntarioCanada
| | - Zhaolei Zhang
- Department of Computer ScienceUniversity of TorontoTorontoOntarioCanada,The Donnelly Centre for Cellular and Biomolecular ResearchUniversity of TorontoTorontoOntarioCanada,Department of Molecular GeneticsUniversity of TorontoTorontoOntarioCanada
| | - Mark D. Minden
- Division of Medical Oncology and HematologyPrincess Margaret Cancer CentreTorontoOntarioCanada
| | - Dennis Dong Hwan Kim
- Division of Medical Oncology and HematologyPrincess Margaret Cancer CentreTorontoOntarioCanada,Hans Messner Allogeneic Blood and Marrow Transplant UnitPrincess Margaret Cancer CentreTorontoOntarioCanada
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86
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Wang CPJ, Byun MJ, Kim SN, Park W, Park HH, Kim TH, Lee JS, Park CG. Biomaterials as therapeutic drug carriers for inflammatory bowel disease treatment. J Control Release 2022; 345:1-19. [DOI: 10.1016/j.jconrel.2022.02.028] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 02/20/2022] [Accepted: 02/21/2022] [Indexed: 12/13/2022]
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87
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Kim TH, Woo S, Han S, Suh CH, Do RKG, Lee JM. Risk Factors for Hypervascularization in Hepatobiliary Phase Hypointense Nodules without Arterial Phase Hyperenhancement: A Systematic Review and Meta-analysis. Acad Radiol 2022; 29:198-210. [PMID: 32962925 PMCID: PMC9115668 DOI: 10.1016/j.acra.2020.08.031] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 08/16/2020] [Accepted: 08/20/2020] [Indexed: 02/06/2023]
Abstract
RATIONALE AND OBJECTIVES To perform a systematic review and meta-analysis to determine risk factors for hypervascularization in hepatobiliary phase (HBP) hypointense nodules without arterial phase hyperenhancement (APHE) in patients with hepatocellular carcinoma (HCC). MATERIALS AND METHODS Pubmed and EMBASE databases were searched up to May 7, 2020. Studies which evaluated radiologic and clinical risk factors for hypervascularization in HBP hypointense nodules without APHE were included. Hazard ratios were meta-analytically pooled using random-effects model. Methodological quality of included studies was assessed using Quality in Prognostic Studies (QUIPS) tool. RESULTS Sixteen studies with 934 patients were included. HBP hypointense nodules without APHE with baseline size greater than 10 mm, T2 hyperintensity, and restricted diffusion showed risk for hypervascularization with pooled HRs of 2.95 (95% confidence interval [CI], 1.94-4.20), 4.21 (95% CI, 1.15-15.40), 5.83 (95% CI, 1.42-23.95), respectively. Previous HCC history contributed to hypervascularization of the nodules with hazard ratio of 2.06 (95% CI, 1.23-3.44). T1 hyperintensity, intralesional fat, Child-Pugh Class B, sex, alfa-fetoprotein, hepatitis B or C infection were not significant risk factors for hypervascularization (p ≥0.05). Study quality was generally moderate. CONCLUSION HBP hypointense nodules without APHE on gadoxetic acid-enhanced MRI with baseline size greater than 10 mm, T2 hyperintensity, restricted diffusion and previous hepatocellular carcinoma history pose higher risk for hypervascularization. Proper patient management in patients with HBP hypointense nodules without APHE on gadoxetic acid-enhanced MRI may need to be tailored according to these risk factors.
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88
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Seo H, Sim YS, Min KH, Lee JH, Kim BK, Oh YM, Ra SW, Kim TH, Hwang YI, Park JW. The Relationship Between Comorbidities and Microbiologic Findings in Patients with Acute Exacerbation of Chronic Obstructive Pulmonary Disease. Int J Chron Obstruct Pulmon Dis 2022; 17:855-867. [PMID: 35480555 PMCID: PMC9035445 DOI: 10.2147/copd.s360222] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 04/03/2022] [Indexed: 02/05/2023] Open
Abstract
PURPOSE Data regarding the relationship between microbiologic features and comorbidities in patients with acute exacerbation of chronic obstructive pulmonary disease (AECOPD) are limited. The aim of this study was to correlate microbiologic findings with comorbidities in patients with moderate to severe AECOPD. PATIENTS AND METHODS This multicenter observational study included patients with AECOPD seen at 28 hospitals in South Korea between January 2015 and December 2018, and the data were retrospectively collected. Pathogens were examined in patients with either pulmonary or extrapulmonary comorbidities, and compared to those of patients without comorbidities. The relationship between pathogen type and the number of comorbidities was also evaluated. RESULTS Bacterial infections (178 [37.2%] vs 203 [28.7%], p = 0.002) and co-infections with bacteria and viruses (65 [13.6%] vs 57 [8.1%], p = 0.002) were more prevalent in patients with pulmonary comorbidities. Bacterial pathogens (280 [34.7%] vs 101 [26.7%], p=0.006) were detected at a higher rate in patients with extrapulmonary comorbidities. Previous pulmonary tuberculosis (PTB), bronchiectasis, and diabetes mellitus were risk factors for bacterial infection, and congestive heart failure was a risk factor for bacterial and viral co-infection. As the number of comorbidities increased, the risk of bacterial infection increased considerably. Pseudomonas aeruginosa was more frequently identified in patients with previous PTB (57 [15.3%] vs 59 [7.4%], p < 0.001) and bronchiectasis (33 [19.6%] vs 83 [8.3%], p < 0.001). CONCLUSION AECOPD patients with comorbidities were more likely to experience infection-related exacerbations compared to those without comorbidities. As the overall number of comorbidities increased, the risk of bacterial infection increased significantly.
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Affiliation(s)
- Hyewon Seo
- Department of Internal Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Yun Su Sim
- Division of Pulmonary, Allergy and Critical Care Medicine, Kangnam Sacred Heart Hospital, Seoul, Republic of Korea
| | - Kyung Hoon Min
- Division of Pulmonology, Allergy and Critical Care Medicine, Department of Internal Medicine, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - Jae Ha Lee
- Division of Pulmonology and Critical Care Medicine, Department of Internal Medicine, Inje University Haeundae Paik Hospital, Inje University College of Medicine, Busan, Republic of Korea
| | - Byung-Keun Kim
- Division of Pulmonology, Allergy and Critical Care Medicine, Department of Internal Medicine, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - Yeon Mok Oh
- Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Seung Won Ra
- Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Republic of Korea
| | - Tae-Hyung Kim
- Division of Pulmonary and Critical Care Medicine, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Republic of Korea
| | - Yong Il Hwang
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Republic of Korea
| | - Jeong-Woong Park
- Department of Allergy, Pulmonary and Critical Care Medicine, Gachon University Gil Medical Center, Incheon, Republic of Korea
- Correspondence: Jeong-Woong Park, Department of Allergy, Pulmonary and Critical Care Medicine, Gachon University Gil Medical Center, Namdong-daero 774 beon-gil, Namdong, Incheon, 21565, Republic of Korea, Tel +82-10-5574-0164, Fax +82-32-469-4320, Email
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89
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Kim DS, Kim JH, Baek SW, Lee JK, Park SY, Choi B, Kim TH, Min K, Han DK. Controlled vitamin D delivery with injectable hyaluronic acid-based hydrogel for restoration of tendinopathy. J Tissue Eng 2022; 13:20417314221122089. [PMID: 36082312 PMCID: PMC9445534 DOI: 10.1177/20417314221122089] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 08/03/2022] [Indexed: 11/15/2022] Open
Abstract
Tendinopathy is a term used to describe tendon disorders that are marked by pain and a loss of function. Recent studies demonstrated that inflammation plays an important role throughout the broad spectrum of tendinopathy. Conventional treatments such as steroid injections, analgesics, and physical modalities simply give pain relief and do not alter the disease progression without the tendon regeneration effect. Tenocytes are responsible for maintaining the tendon matrix and understanding how they function is essential to studying new treatments for tendinopathy. Our previous study showed the protective effects of vitamin D (Vit D) on damaged tenocytes. Besides its well-known effects on bone metabolism, the non-classical action of Vit D is the pleiotropic effects on modulating immune function. In the present study, we developed a Vit D delivery system with hyaluronic acid (HA), which is one of the major components of the extracellular matrix that has anti-inflammation and wound-healing properties. A novel Vit D delivery system with cross-linked HA hydrogel (Gel) and Tween 80 (T80), Vit D@Gel/T80, could be a new regeneration technique for the treatment of tendinopathy. Vit D@Gel/T80 reduced TNF-α induced damage to human tenocytes in vitro. In an animal study, the Vit D@Gel/T80 injected group demonstrated tendon restoration features. As a result, this Vit D@Gel/T80 system might be a local injection material in the treatment for tendinopathy.
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Affiliation(s)
- Da-Seul Kim
- Department of Biomedical Science, CHA University, Gyeonggi-do, Republic of Korea.,School of Integrative Engineering, Chung-Ang University, Seoul, Republic of Korea
| | - Jun Hyuk Kim
- Department of Biomedical Science, CHA University, Gyeonggi-do, Republic of Korea
| | - Seung-Woon Baek
- Department of Biomedical Science, CHA University, Gyeonggi-do, Republic of Korea.,Department of Biomedical Engineering, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), Suwon-si, Republic of Korea.,Department of Intelligent Precision Healthcare Convergence, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), Suwon-si, Republic of Korea
| | - Jun-Kyu Lee
- Department of Biomedical Science, CHA University, Gyeonggi-do, Republic of Korea
| | - So-Yeon Park
- Department of Biomedical Science, CHA University, Gyeonggi-do, Republic of Korea.,Division of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seongbuk-gu, Seoul, Republic of Korea
| | - Bogyu Choi
- Department of Biomedical Science, CHA University, Gyeonggi-do, Republic of Korea
| | - Tae-Hyung Kim
- School of Integrative Engineering, Chung-Ang University, Seoul, Republic of Korea
| | - Kyunghoon Min
- Department of Rehabilitation Medicine, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Republic of Korea
| | - Dong Keun Han
- Department of Biomedical Science, CHA University, Gyeonggi-do, Republic of Korea
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90
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Kim H, Solak K, Han Y, Cho YW, Koo KM, Kim CD, Luo Z, Son H, Kim HR, Mavi A, Kim TH. Electrically controlled mRNA delivery using a polypyrrole-graphene oxide hybrid film to promote osteogenic differentiation of human mesenchymal stem cells. Nano Res 2022; 15:9253-9263. [PMID: 35911478 PMCID: PMC9308036 DOI: 10.1007/s12274-022-4613-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 05/31/2022] [Accepted: 06/03/2022] [Indexed: 05/03/2023]
Abstract
UNLABELLED Direct messenger ribonucleic acid (mRNA) delivery to target cells or tissues has revolutionized the field of biotechnology. However, the applicability of regenerative medicine is limited by the technical difficulties of various mRNA-loaded nanocarriers. Herein, we report a new conductive hybrid film that could guide osteogenic differentiation of human adipose-derived mesenchymal stem cells (hADMSCs) via electrically controlled mRNA delivery. To find optimal electrical conductivity and mRNA-loading capacity, the polypyrrole-graphene oxide (PPy-GO) hybrid film was electropolymerized on indium tin oxide substrates. We found that the fluorescein sodium salt, a molecule partially mimicking the physical and chemical properties of mRNAs, can be effectively absorbed and released by electrical stimulation (ES). The hADMSCs cultivated on the PPy-GO hybrid film loaded with pre-osteogenic mRNAs showed the highest osteogenic differentiation under electrical stimulation. This platform can load various types of RNAs thus highly promising as a new nucleic acid delivery tool for the development of stem cell-based therapeutics. ELECTRONIC SUPPLEMENTARY MATERIAL Supplementary material (electrochemical and FT-IR analysis on the film, additional SEM, AFM and C-AFM images of the film, optical and fluorescence images of cells, and the primers used for RT-qPCR analysis) is available in the online version of this article at 10.1007/s12274-022-4613-y.
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Affiliation(s)
- Huijung Kim
- School of Integrative Engineering, Chung-Ang University, 84 Heukseuk-ro, Dongjak-gu, Seoul, 06974 Republic of Korea
| | - Kübra Solak
- Department of Nanoscience and Nanoengineering, Graduate School of Natural and Applied Sciences, Atatürk University, Erzurum, 25240 Turkey
| | - Yoojoong Han
- School of Integrative Engineering, Chung-Ang University, 84 Heukseuk-ro, Dongjak-gu, Seoul, 06974 Republic of Korea
| | - Yeon-Woo Cho
- School of Integrative Engineering, Chung-Ang University, 84 Heukseuk-ro, Dongjak-gu, Seoul, 06974 Republic of Korea
| | - Kyeong-Mo Koo
- School of Integrative Engineering, Chung-Ang University, 84 Heukseuk-ro, Dongjak-gu, Seoul, 06974 Republic of Korea
| | - Chang-Dae Kim
- School of Integrative Engineering, Chung-Ang University, 84 Heukseuk-ro, Dongjak-gu, Seoul, 06974 Republic of Korea
| | - Zhengtang Luo
- Department of Chemical and Biological Engineering, Hong Kong University of Science and Technology, Kowloon, Hong Kong, 999077 China
| | - Hyungbin Son
- School of Integrative Engineering, Chung-Ang University, 84 Heukseuk-ro, Dongjak-gu, Seoul, 06974 Republic of Korea
| | - Hyung-Ryong Kim
- Department of Pharmacology, College of Dentistry, Jeonbuk National University, Jeonju, 54896 Republic of Korea
| | - Ahmet Mavi
- Department of Nanoscience and Nanoengineering, Institute of Science, Atatürk University, Erzurum, 25240 Turkey
- Department of Mathematics and Science Education, Education Faculty of Kazim Karabekir, Atatürk University, Erzurum, 25240 Turkey
| | - Tae-Hyung Kim
- School of Integrative Engineering, Chung-Ang University, 84 Heukseuk-ro, Dongjak-gu, Seoul, 06974 Republic of Korea
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91
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Kim Y, Lee H, Lee SK, Yang B, Choi H, Park DW, Park TS, Moon JY, Kim TH, Sohn JW, Yoon HJ, Kim SH. Chronic Obstructive Pulmonary Disease is Associated with a More Symptomatic Burden and Severe Presentation of COVID-19: A Korean National COVID-19 Cohort Study. TOHOKU J EXP MED 2022; 256:209-214. [DOI: 10.1620/tjem.256.209] [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: 01/08/2023]
Affiliation(s)
- Youlim Kim
- Division of Pulmonary and Allergy, Department of Internal Medicine, Konkuk University Hospital, School of Medicine
| | - Hyun Lee
- Department of Internal Medicine, Hanyang University College of Medicine
| | - Sun-Kyung Lee
- Department of Internal Medicine, Hanyang University College of Medicine
| | - Bumhee Yang
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Chungbuk National University Hospital, Chungbuk National University College of Medicine
| | - Hayoung Choi
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Internal Medicine, Hallym University Kangnam Sacred Heart Hospital
| | - Dong Won Park
- Department of Internal Medicine, Hanyang University College of Medicine
| | - Tai Sun Park
- Department of Internal Medicine, Hanyang University College of Medicine
| | - Ji-Yong Moon
- Department of Internal Medicine, Hanyang University College of Medicine
| | - Tae-Hyung Kim
- Department of Internal Medicine, Hanyang University College of Medicine
| | - Jang Won Sohn
- Department of Internal Medicine, Hanyang University College of Medicine
| | - Ho Joo Yoon
- Department of Internal Medicine, Hanyang University College of Medicine
| | - Sang-Heon Kim
- Department of Internal Medicine, Hanyang University College of Medicine
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92
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Lee HW, Sim YS, Jung JY, Seo H, Park JW, Min KH, Lee JH, Kim BK, Lee MG, Oh YM, Ra SW, Kim TH, Hwang YI, Rhee CK, Joo H, Lee EG, Lee JH, Park HY, Kim WJ, Um SJ, Choi JY, Lee CH, An TJ, Park Y, Yoon YS, Park JH, Yoo KH, Kim DK. A Multicenter Study to Identify the Respiratory Pathogens Associated with Exacerbation of Chronic Obstructive Pulmonary Disease in Korea. Tuberc Respir Dis (Seoul) 2022; 85:37-46. [PMID: 34666427 PMCID: PMC8743635 DOI: 10.4046/trd.2021.0080] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 10/16/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Although respiratory tract infection is one of the most important factors triggering acute exacerbation of chronic obstructive pulmonary disease (AE-COPD), limited data are available to suggest an epidemiologic pattern of microbiology in South Korea. METHODS A multicenter observational study was conducted between January 2015 and December 2018 across 28 hospitals in South Korea. Adult patients with moderate-to-severe acute exacerbations of COPD were eligible to participate in the present study. The participants underwent all conventional tests to identify etiology of microbial pathogenesis. The primary outcome was the percentage of different microbiological pathogens causing AE-COPD. A comparative microbiological analysis of the patients with overlapping asthma-COPD (ACO) and pure COPD was performed. RESULTS We included 1,186 patients with AE-COPD. Patients with pure COPD constituted 87.9% and those with ACO accounted for 12.1%. Nearly half of the patients used an inhaled corticosteroid-containing regimen and one-fifth used systemic corticosteroids. Respiratory pathogens were found in 55.3% of all such patients. Bacteria and viruses were detected in 33% and 33.2%, respectively. Bacterial and viral coinfections were found in 10.9%. The most frequently detected bacteria were Pseudomonas aeruginosa (9.8%), and the most frequently detected virus was influenza A (10.4%). Multiple bacterial infections were more likely to appear in ACO than in pure COPD (8.3% vs. 3.6%, p=0.016). CONCLUSION Distinct microbiological patterns were identified in patients with moderate-to-severe AE-COPD in South Korea. These findings may improve evidence-based management of patients with AE-COPD and represent the basis for further studies investigating infectious pathogens in patients with COPD.
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Affiliation(s)
- Hyun Woo Lee
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Yun Su Sim
- Division of Pulmonary, Allergy and Critical Care Medicine, Kangnam Sacred Heart Hospital, Seoul, Republic of Korea
| | - Ji Ye Jung
- Division of Pulmonology and Critical Care Medicine, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Hyewon Seo
- Department of Internal Medicine, School of Medicine, Kyungpook National University Hospital, Daegu, Republic of Korea
| | - Jeong-Woong Park
- Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - Kyung Hoon Min
- Division of Pulmonology, Allergy and Critical Care Medicine, Department of Internal Medicine, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - Jae Ha Lee
- Division of Pulmonology and Critical Care Medicine, Department of Internal Medicine, Inje University Haeundae Paik Hospital, Inje University College of Medicine, Busan, Republic of Korea
| | - Byung-Keun Kim
- Division of Pulmonology, Allergy and Critical Care Medicine, Department of Internal Medicine, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - Myung Goo Lee
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Hallym University Chuncheon Sacred Heart Hospital, Hallym University College of Medicine, Chuncheon, Republic of Korea
| | - Yeon-Mok Oh
- Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Seung Won Ra
- Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Republic of Korea
| | - Tae-Hyung Kim
- Division of Pulmonary and Critical Care Medicine, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Republic of Korea
| | - Yong il Hwang
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Republic of Korea
| | - Chin Kook Rhee
- Department of Internal Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hyonsoo Joo
- Department of Internal Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Eung Gu Lee
- Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Bucheon, Republic of Korea
| | - Jin Hwa Lee
- Department of Internal Medicine, Ewha Womans University Seoul Hospital, Ewha Womans University College of Medicine, Seoul, Republic of Korea
| | - Hye Yun Park
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Woo Jin Kim
- Department of Internal Medicine and Environmental Health Center, Kangwon National University College of Medicine, Chuncheon, Republic of Korea
| | - Soo-Jung Um
- Department of Internal Medicine, Dong-A University College of Medicine, Busan, Republic of Korea
| | - Joon Young Choi
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Incheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Chang-Hoon Lee
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Tai Joon An
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Yeonhee Park
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Young-Soon Yoon
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Dongguk University Ilsan Hospital, Goyang, Republic of Korea
| | - Joo Hun Park
- Department of Pulmonary and Critical Care Medicine, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Kwang Ha Yoo
- Department of Internal Medicine, Konkuk University School of Medicine, Seoul, Republic of Korea
- Address for correspondence: Kwang Ha Yoo, M.D., Ph.D. Department of Internal Medicine, Konkuk University Hospital, 120-1 Neungdong-ro, Gwangjin-gu, Seoul 05030, Republic of Korea Phone: 82-2-2030-7522, Fax: 82-2-2030-7458, E-mail:
| | - Deog Kyeom Kim
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, Republic of Korea
- Address for correspondence: Deog Kyeom Kim, M.D., Ph.D. Division of Respiratory and Critical Care, Department of Internal Medicine, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, 20 Boramae-ro-5-gil, Dongjak-gu, Seoul 07061, Republic of Korea Phone: 82-2-870-2228, Fax: 82-2-870-7378, E-mail:
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93
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Park J, Lee JM, Kim TH, Yoon JH. Imaging Diagnosis of HCC: Future directions with special emphasis on hepatobiliary MRI and contrast-enhanced ultrasound. Clin Mol Hepatol 2021; 28:362-379. [PMID: 34955003 PMCID: PMC9293611 DOI: 10.3350/cmh.2021.0361] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 12/21/2021] [Indexed: 11/16/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is a unique cancer entity that can be noninvasively diagnosed using imaging modalities without pathologic confirmation. In 2018, several major guidelines for HCC were updated to include hepatobiliary contrast agent magnetic resonance imaging (HBA-MRI) and contrast-enhanced ultrasound (CEUS) as major imaging modalities for HCC diagnosis. HBA-MRI enables the achievement of high sensitivity in HCC detection using the hepatobiliary phase (HBP). CEUS is another imaging modality with real-time imaging capability, and it is reported to be useful as a second-line modality to increase sensitivity without losing specificity for HCC diagnosis. However, until now, there is an unsolved discrepancy among guidelines on whether to accept “HBP hypointensity” as a definite diagnostic criterion for HCC or include CEUS in the diagnostic algorithm for HCC diagnosis. Furthermore, there is variability in terminology and inconsistencies in the definition of imaging findings among guidelines; therefore, there is an unmet need for the development of a standardized lexicon. In this article, we review the performance and limitations of HBA-MRI and CEUS after guideline updates in 2018 and briefly introduce some future aspects of imaging-based HCC diagnosis.
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Affiliation(s)
- Junghoan Park
- Department of Radiology, Seoul National University Hospital, Seoul, Republic of Korea
| | - Jeong Min Lee
- Department of Radiology, Seoul National University Hospital, Seoul, Republic of Korea.,Department of Radiology, Seoul National University College of Medicine, Seoul, Republic of Korea.,Institute of Radiation Medicine, Seoul National University Medical Research Center, Seoul, Republic of Korea
| | - Tae-Hyung Kim
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, USA
| | - Jeong Hee Yoon
- Department of Radiology, Seoul National University Hospital, Seoul, Republic of Korea.,Department of Radiology, Seoul National University College of Medicine, Seoul, Republic of Korea
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94
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Youk S, Le MT, Kang M, Ahn B, Choi M, Kim K, Kim TH, Kim JH, Ho CS, Park C. Development of a high-resolution typing method for SLA-3, swine MHC class I antigen 3. Anim Genet 2021; 53:166-170. [PMID: 34910829 DOI: 10.1111/age.13161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/24/2021] [Indexed: 10/19/2022]
Abstract
We developed a high-resolution and comprehensive typing method for swine leukocyte antigen 3 (SLA-3), an MHC class I gene, employing locus-specific genomic PCR followed by subsequent direct sequencing. A total of 292 individuals from nine pure, one cross-breed and six cell lines were successfully typed. A total of 21 SLA-3 alleles were identified, of which four were found to be novel alleles. However, the allelic diversity of SLA-3 was lower than that of previously reported class I genes, SLA-1 and -2. More SLA-3 alleles were observed in the Landrace and Yorkshire breeds than the other breeds. SLA-3*04:01 was identified in seven out of nine breeds and was the most widely distributed allele across all breeds. Therefore, the typing method reported in this study completes our efforts to develop high-resolution typing methods for major SLA molecules, facilitating the combined analysis of major SLA genes from field samples, which is important to understand the relationship between the adaptive immune responses against pathogens and the immunogenetic makeup of an individual.
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Affiliation(s)
- S Youk
- Department of Stem Cell and Regenerative Biotechnology, Konkuk University, Gwangjin-gu, Seoul, 05029, Korea
| | - M T Le
- Department of Stem Cell and Regenerative Biotechnology, Konkuk University, Gwangjin-gu, Seoul, 05029, Korea
| | - M Kang
- Department of Stem Cell and Regenerative Biotechnology, Konkuk University, Gwangjin-gu, Seoul, 05029, Korea
| | - B Ahn
- Department of Stem Cell and Regenerative Biotechnology, Konkuk University, Gwangjin-gu, Seoul, 05029, Korea
| | - M Choi
- Department of Stem Cell and Regenerative Biotechnology, Konkuk University, Gwangjin-gu, Seoul, 05029, Korea
| | - K Kim
- Department of Stem Cell and Regenerative Biotechnology, Konkuk University, Gwangjin-gu, Seoul, 05029, Korea.,Livestock Support Department, National Agricultural Cooperative Federation Agribusiness Group, Seoul, 04516, Korea
| | - T H Kim
- Animal Genomics and Bioinformatics Division, National Institute of Animal Science, RDA, Wanju, 55365, Korea
| | - J H Kim
- Department of Stem Cell and Regenerative Biotechnology, Konkuk University, Gwangjin-gu, Seoul, 05029, Korea
| | - C S Ho
- Gift of Hope Organ and Tissue Donor Network, 425 Spring Lake Drive, Itasca, IL, 60143, USA
| | - C Park
- Department of Stem Cell and Regenerative Biotechnology, Konkuk University, Gwangjin-gu, Seoul, 05029, Korea
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95
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Kim DS, Lee JK, Kim JH, Lee J, Kim DS, An S, Park SB, Kim TH, Rim JS, Lee S, Han DK. Advanced PLGA hybrid scaffold with a bioactive PDRN/BMP2 nanocomplex for angiogenesis and bone regeneration using human fetal MSCs. Sci Adv 2021; 7:eabj1083. [PMID: 34878837 PMCID: PMC8654289 DOI: 10.1126/sciadv.abj1083] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 10/16/2021] [Indexed: 05/14/2023]
Abstract
Biodegradable polymers have been used with various systems for tissue engineering. Among them, poly(lactic-co-glycolic) acid (PLGA) has been widely used as a biomaterial for bone regeneration because of its great biocompatibility and biodegradability properties. However, there remain substantial cruxes that the by-products of PLGA result in an acidic environment at the implanting site, and the polymer has a weak mechanical property. In our previous study, magnesium hydroxide (MH) and bone extracellular matrix are combined with a PLGA scaffold (PME) to improve anti-inflammation and mechanical properties and osteoconductivity. In the present study, the development of a bioactive nanocomplex (NC) formed along with polydeoxyribonucleotide and bone morphogenetic protein 2 (BMP2) provides synergistic abilities in angiogenesis and bone regeneration. This PME hybrid scaffold immobilized with NC (PME/NC) achieves outstanding performance in anti-inflammation, angiogenesis, and osteogenesis. Such an advanced PME/NC scaffold suggests an integrated bone graft substitute for bone regeneration.
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Affiliation(s)
- Da-Seul Kim
- Department of Biomedical Science, CHA University, Gyeonggi-do 13488, Republic of Korea
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Jun-Kyu Lee
- Department of Biomedical Science, CHA University, Gyeonggi-do 13488, Republic of Korea
| | - Jun Hyuk Kim
- Department of Biomedical Science, CHA University, Gyeonggi-do 13488, Republic of Korea
| | - Jaemin Lee
- Department of Biomedical Science, CHA University, Gyeonggi-do 13488, Republic of Korea
| | - Dong Seon Kim
- Laboratory Animal Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu 41061, Republic of Korea
| | - Sanghyun An
- Laboratory Animal Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu 41061, Republic of Korea
| | - Sung-Bin Park
- Department of Biomedical Science, CHA University, Gyeonggi-do 13488, Republic of Korea
| | - Tae-Hyung Kim
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Jong Seop Rim
- Fetal Stem Cell Research Center, CHA Advanced Research Institute, Gyeonggi-do 13488, Republic of Korea
| | - Soonchul Lee
- Department of Orthopaedic Surgery, CHA Bundang Medical Center, CHA University, Gyeonggi-do 13496, Republic of Korea
| | - Dong Keun Han
- Department of Biomedical Science, CHA University, Gyeonggi-do 13488, Republic of Korea
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96
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Zhang X, Kim TH, Thauland TJ, Li H, Majedi FS, Ly C, Gu Z, Butte MJ, Rowat AC, Li S. Corrigendum to "Unraveling the mechanobiology of immune cells" [Curr Opin Biotechnol 66 (2020) 236-245]. Curr Opin Biotechnol 2021; 73:387-388. [PMID: 34895976 PMCID: PMC8655620 DOI: 10.1016/j.copbio.2021.10.019] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Affiliation(s)
- Xuexiang Zhang
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Tae-Hyung Kim
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Pathology, University of New Mexico School of Medicine
| | - Timothy J Thauland
- Division of Immunology, Allergy, and Rheumatology, Department of Pediatrics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Hongjun Li
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Fatemeh Sadat Majedi
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Chau Ly
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Zhen Gu
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Manish J Butte
- Division of Immunology, Allergy, and Rheumatology, Department of Pediatrics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Amy C Rowat
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Song Li
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA 90095, USA.
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97
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Choi HK, Kim CH, Lee SN, Kim TH, Oh BK. Nano-sized graphene oxide coated nanopillars on microgroove polymer arrays that enhance skeletal muscle cell differentiation. Nano Converg 2021; 8:40. [PMID: 34862954 PMCID: PMC8643291 DOI: 10.1186/s40580-021-00291-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 11/22/2021] [Indexed: 05/04/2023]
Abstract
The degeneration or loss of skeletal muscles, which can be caused by traumatic injury or disease, impacts most aspects of human activity. Among various techniques reported to regenerate skeletal muscle tissue, controlling the external cellular environment has been proven effective in guiding muscle differentiation. In this study, we report a nano-sized graphene oxide (sGO)-modified nanopillars on microgroove hybrid polymer array (NMPA) that effectively controls skeletal muscle cell differentiation. sGO-coated NMPA (sG-NMPA) were first fabricated by sequential laser interference lithography and microcontact printing methods. To compensate for the low adhesion property of polydimethylsiloxane (PDMS) used in this study, graphene oxide (GO), a proven cytophilic nanomaterial, was further modified. Among various sizes of GO, sGO (< 10 nm) was found to be the most effective not only for coating the surface of the NM structure but also for enhancing the cell adhesion and spreading on the fabricated substrates. Remarkably, owing to the micro-sized line patterns that guide cellular morphology to an elongated shape and because of the presence of sGO-modified nanostructures, mouse myoblast cells (C2C12) were efficiently differentiated into skeletal muscle cells on the hybrid patterns, based on the myosin heavy chain expression levels. Therefore, the developed sGO coated polymeric hybrid pattern arrays can serve as a potential platform for rapid and highly efficient in vitro muscle cell generation.
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Affiliation(s)
- Hye Kyu Choi
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul, 04170, South Korea
| | - Cheol-Hwi Kim
- School of Integrative Engineering, Chung-Ang University, Seoul, 06974, Korea
| | | | - Tae-Hyung Kim
- School of Integrative Engineering, Chung-Ang University, Seoul, 06974, Korea.
| | - Byung-Keun Oh
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul, 04170, South Korea.
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98
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Park DW, Kim YJ, Sung YK, Chung SJ, Yeo Y, Park TS, Lee H, Moon JY, Kim SH, Kim TH, Yoon HJ, Sohn JW. Impact of latent tuberculosis treatment on the risk of mycobacterium tuberculosis (MTB) in seropositive rheumatoid arthritis initiating TNF inhibitors in an MTB endemic area. Rheumatology (Oxford) 2021; 60:5872-5874. [PMID: 34617985 DOI: 10.1093/rheumatology/keab749] [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] [Received: 07/22/2021] [Revised: 09/13/2021] [Accepted: 09/24/2021] [Indexed: 11/12/2022] Open
Affiliation(s)
- Dong Won Park
- Department of Internal Medicine, Hanyang University College of Medicine
| | - Yun Jin Kim
- Biostatistical Consulting and Research Lab, Medical Research Collaborating Center, Hanyang University
| | - Yoon-Kyoung Sung
- Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Republic of Korea
| | - Sung Jun Chung
- Department of Internal Medicine, Hanyang University College of Medicine
| | - Yoomi Yeo
- Department of Internal Medicine, Hanyang University College of Medicine
| | - Tai Sun Park
- Department of Internal Medicine, Hanyang University College of Medicine
| | - Hyun Lee
- Department of Internal Medicine, Hanyang University College of Medicine
| | - Ji-Yong Moon
- Department of Internal Medicine, Hanyang University College of Medicine
| | - Sang-Heon Kim
- Department of Internal Medicine, Hanyang University College of Medicine
| | - Tae-Hyung Kim
- Department of Internal Medicine, Hanyang University College of Medicine
| | - Ho Joo Yoon
- Department of Internal Medicine, Hanyang University College of Medicine
| | - Jang Won Sohn
- Department of Internal Medicine, Hanyang University College of Medicine
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99
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Lee SW, Moon JY, Lee SK, Lee H, Moon S, Chung SJ, Yeo Y, Park TS, Park DW, Kim TH, Sohn JW, Yoon HJ, Kim SH. Anti-SARS-CoV-2 Spike Protein RBD Antibody Levels After Receiving a Second Dose of ChAdOx1 nCov-19 (AZD1222) Vaccine in Healthcare Workers: Lack of Association With Age, Sex, Obesity, and Adverse Reactions. Front Immunol 2021; 12:779212. [PMID: 34899739 PMCID: PMC8654782 DOI: 10.3389/fimmu.2021.779212] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Accepted: 11/10/2021] [Indexed: 01/21/2023] Open
Abstract
Response to vaccines generally varies according to individual factors of the vaccinated subjects such as demographics and immune status. While there are various reports of factors associated with immunogenicity of mRNA COVID-19 vaccines, little is known about those of adenovirus vector vaccines. We conducted a prospective observational study to assess the relationships of antibody level with age, sex, body mass index (BMI), and adverse reactions (ARs) to an adenovirus vector vaccine, ChAdOx1 nCoV-19. Healthcare workers who planned to receive both the first and second injections of the ChAdOx1 nCoV-19 vaccine at Hanyang University Hospital, Seoul, Korea, were enrolled in the study. Seven days after each injection, participants were asked to complete an online adverse reaction survey. In addition, anti-SARS-CoV-2 spike (S) protein receptor binding domain (RBD) antibody concentration was measured 4 weeks after the second injection. All participants (n = 447, 100%) showed serologic positivity (≥ 0.8 U/mL) 4 weeks after the second injection of ChAdOx1 nCoV-19 vaccine. Furthermore, the anti-SARS-CoV-2 S protein RBD concentration was similar among groups when stratified by age, sex, BMI, or presence and severity of AR; multivariable linear regression found no associations between antibody response to the ChAdOx1 nCoV-19 vaccine and age, BMI, sex, and vaccine-induced ARs. In conclusion, age, sex, obesity, and ARs were not associated with antibody responses after two doses of ChAdOx1 nCoV-19 vaccination.
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Affiliation(s)
- Sang Won Lee
- Department of Clinical Pharmacology and Therapeutics, Hanyang University Hospital, Seoul, South Korea
| | - Ji-Yong Moon
- Division of Pulmonary Medicine and Allergy, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, South Korea
| | - Sun-Kyung Lee
- Division of Pulmonary Medicine and Allergy, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, South Korea
- Department of Mathematics, College of Natural Sciences, Hanyang University, Seoul, South Korea
| | - Hyun Lee
- Division of Pulmonary Medicine and Allergy, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, South Korea
| | - SeolHwa Moon
- College of Nursing, Hanyang University, Seoul, South Korea
| | - Sung Jun Chung
- Division of Pulmonary Medicine and Allergy, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, South Korea
| | - Yoomi Yeo
- Division of Pulmonary Medicine and Allergy, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, South Korea
| | - Tai Sun Park
- Division of Pulmonary Medicine and Allergy, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, South Korea
| | - Dong Won Park
- Division of Pulmonary Medicine and Allergy, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, South Korea
| | - Tae-Hyung Kim
- Division of Pulmonary Medicine and Allergy, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, South Korea
| | - Jang Won Sohn
- Division of Pulmonary Medicine and Allergy, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, South Korea
| | - Ho Joo Yoon
- Division of Pulmonary Medicine and Allergy, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, South Korea
| | - Sang-Heon Kim
- Division of Pulmonary Medicine and Allergy, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, South Korea
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100
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Lee KH, Kim TH. Recent Advances in Multicellular Tumor Spheroid Generation for Drug Screening. Biosensors (Basel) 2021; 11:445. [PMID: 34821661 PMCID: PMC8615712 DOI: 10.3390/bios11110445] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/08/2021] [Accepted: 11/10/2021] [Indexed: 05/12/2023]
Abstract
Multicellular tumor spheroids (MCTs) have been employed in biomedical fields owing to their advantage in designing a three-dimensional (3D) solid tumor model. For controlling multicellular cancer spheroids, mimicking the tumor extracellular matrix (ECM) microenvironment is important to understand cell-cell and cell-matrix interactions. In drug cytotoxicity assessments, MCTs provide better mimicry of conventional solid tumors that can precisely represent anticancer drug candidates' effects. To generate incubate multicellular spheroids, researchers have developed several 3D multicellular spheroid culture technologies to establish a research background and a platform using tumor modelingvia advanced materials science, and biosensing techniques for drug-screening. In application, drug screening was performed in both invasive and non-invasive manners, according to their impact on the spheroids. Here, we review the trend of 3D spheroid culture technology and culture platforms, and their combination with various biosensing techniques for drug screening in the biomedical field.
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Affiliation(s)
| | - Tae-Hyung Kim
- School of Integrative Engineering, Chung-Ang University, 84 Heukseuk-ro, Dongjak-gu, Seoul 06974, Korea;
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