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Yuan X, Suvarna M, Lim JY, Pérez-Ramírez J, Wang X, Ok YS. Active Learning-Based Guided Synthesis of Engineered Biochar for CO 2 Capture. Environ Sci Technol 2024; 58:6628-6636. [PMID: 38497595 PMCID: PMC11025117 DOI: 10.1021/acs.est.3c10922] [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: 12/25/2023] [Revised: 02/21/2024] [Accepted: 02/22/2024] [Indexed: 03/19/2024]
Abstract
Biomass waste-derived engineered biochar for CO2 capture presents a viable route for climate change mitigation and sustainable waste management. However, optimally synthesizing them for enhanced performance is time- and labor-intensive. To address these issues, we devise an active learning strategy to guide and expedite their synthesis with improved CO2 adsorption capacities. Our framework learns from experimental data and recommends optimal synthesis parameters, aiming to maximize the narrow micropore volume of engineered biochar, which exhibits a linear correlation with its CO2 adsorption capacity. We experimentally validate the active learning predictions, and these data are iteratively leveraged for subsequent model training and revalidation, thereby establishing a closed loop. Over three active learning cycles, we synthesized 16 property-specific engineered biochar samples such that the CO2 uptake nearly doubled by the final round. We demonstrate a data-driven workflow to accelerate the development of high-performance engineered biochar with enhanced CO2 uptake and broader applications as a functional material.
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Affiliation(s)
- Xiangzhou Yuan
- Ministry
of Education of Key Laboratory of Energy Thermal Conversion and Control,
School of Energy and Environment, Southeast University, Nanjing 210096, China
- Korea
Biochar Research Center, APRU Sustainable Waste Management Program
& Division of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Manu Suvarna
- Institute
for Chemical and Bioengineering, Department of Chemistry and Applied
Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| | - Juin Yau Lim
- Korea
Biochar Research Center, APRU Sustainable Waste Management Program
& Division of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Javier Pérez-Ramírez
- Institute
for Chemical and Bioengineering, Department of Chemistry and Applied
Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| | - Xiaonan Wang
- Department
of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Yong Sik Ok
- Korea
Biochar Research Center, APRU Sustainable Waste Management Program
& Division of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, Republic of Korea
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2
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Lee SH, Park SH, Park H. Assessing the Feasibility of Biorefineries for a Sustainable Citrus Waste Management in Korea. Molecules 2024; 29:1589. [PMID: 38611868 PMCID: PMC11013942 DOI: 10.3390/molecules29071589] [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: 02/20/2024] [Revised: 03/30/2024] [Accepted: 04/01/2024] [Indexed: 04/14/2024] Open
Abstract
Citrus fruits are one of the most widely used fruits around the world and are used as raw fruits, but are also processed into products such as beverages, and large amounts of by-products and waste are generated in this process. Globally, disposal of citrus waste (CW) through simple landfilling or ocean dumping can result in soil and groundwater contamination, which can negatively impact ecosystem health. The case of Korea is not much different in that these wastes are simply buried or recycled wastes are used as livestock feed additives. However, there are many reports that CW, which is a waste, has high potential to produce a variety of products that can minimize environmental load and increase added value through appropriate waste management. In this study, we aim to explore the latest developments in the evaluation and valorization of the growing CW green technologies in an effort to efficiently and environmentally transform these CW for resource recovery, sustainability, and economic benefits. Recent research strategies on integrated biorefinery approaches have confirmed that CW can be converted into various bioproducts such as enzymes, biofuels and biopolymers, further contributing to energy security. It was found that more efforts are needed to scale up green recovery technologies and achieve diverse product profiling to achieve zero waste levels and industrial viability.
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Affiliation(s)
- Sang-Hwan Lee
- Technical Research Institute, Jeju BioRefine, Jeju 63148, Republic of Korea;
| | - Seong Hee Park
- Technical Research Institute, Fine Korea Corp., Seoul 07294, Republic of Korea;
| | - Hyun Park
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea
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3
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Lee T, Park J, Oh SH, Cheong DY, Roh S, You JH, Hong Y, Lee G. Glucose Oxidase Activity Colorimetric Assay Using Redox-Sensitive Electrochromic Nanoparticle-Functionalized Paper Sensors. ACS Omega 2024; 9:15493-15501. [PMID: 38585131 PMCID: PMC10993408 DOI: 10.1021/acsomega.4c00335] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 01/10/2024] [Revised: 02/23/2024] [Accepted: 03/07/2024] [Indexed: 04/09/2024]
Abstract
Glucose oxidase (GOx) activity assays are vital for various applications, including glucose metabolism estimation and fungal testing. However, conventional methods involve time-consuming and complex procedures. In this study, we present a colorimetric platform for in situ GOx activity measurement utilizing redox-sensitive electrochromic nanoparticles based on polyaniline (PAni). The glucose-adsorbed colorimetric paper sensor, herein termed Glu@CPS, is created by immobilizing ferrocene and glucose onto paper substrates that have been functionalized with PAni nanoparticles. Glu@CPS not only demonstrated rapid detection (within 5 min) but also exhibited remarkable selectivity for GOx and a limit of detection as low as 1.25 μM. Moreover, Glu@CPS demonstrated consistent accuracy in the measurement of GOx activity, exhibiting no deviations even after being stored at ambient temperature for a duration of one month. To further corroborate the effectiveness of this method, we applied Glu@CPS in the detection of GOx activity in a moldy red wine. The results highlight the promising potential of Glu@CPS as a convenient and precise platform for GOx activity measurement in diverse applications including food quality control, environmental monitoring, and early detection of fungal contamination.
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Affiliation(s)
- Taeha Lee
- Department
of Biotechnology and Bioinformatics, Korea
University, Sejong 30019, South Korea
- Interdisciplinary
Graduate Program for Artificial Intelligence Smart Convergence Technology, Korea University, Sejong 30019, South Korea
| | - Jeongmin Park
- Department
of Biotechnology and Bioinformatics, Korea
University, Sejong 30019, South Korea
| | - Seung Hyeon Oh
- Department
of Biotechnology and Bioinformatics, Korea
University, Sejong 30019, South Korea
- Interdisciplinary
Graduate Program for Artificial Intelligence Smart Convergence Technology, Korea University, Sejong 30019, South Korea
| | - Da Yeon Cheong
- Department
of Biotechnology and Bioinformatics, Korea
University, Sejong 30019, South Korea
- Interdisciplinary
Graduate Program for Artificial Intelligence Smart Convergence Technology, Korea University, Sejong 30019, South Korea
| | - Seokbeom Roh
- Department
of Biotechnology and Bioinformatics, Korea
University, Sejong 30019, South Korea
- Interdisciplinary
Graduate Program for Artificial Intelligence Smart Convergence Technology, Korea University, Sejong 30019, South Korea
| | - Jae Hyun You
- Division
of Convergence Business, Korea University, Sejong 30019, South Korea
| | - Yoochan Hong
- Department
of Medical Device, Korea Institute of Machinery
and Materials (KIMM), Daegu 42994, South Korea
| | - Gyudo Lee
- Department
of Biotechnology and Bioinformatics, Korea
University, Sejong 30019, South Korea
- Interdisciplinary
Graduate Program for Artificial Intelligence Smart Convergence Technology, Korea University, Sejong 30019, South Korea
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4
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Kim TH, Yim HJ, Jung YK, Song DS, Yoon EL, Kim HY, Kang SH, Chang Y, Yoo JJ, Jun BG, Lee SW, Park JG, Park JW, Kim SE, Kim TY, Jeong SW, Suk KT, Kim MY, Kim SG, Kim W, Jang JY, Yang JM, Kim DJ. New prognostic model for hospitalized patients with alcoholic cirrhosis and Maddrey's discriminant function <32. Hepatol Int 2024; 18:500-508. [PMID: 37831433 DOI: 10.1007/s12072-023-10582-1] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 08/09/2023] [Indexed: 10/14/2023]
Abstract
BACKGROUND & AIMS Few studies have investigated the prognosis of patients with non-severe alcoholic hepatitis (Non-SAH). The study aimed to develop a new prognostic model for patients with especially Non-SAH. METHODS We extracted 316 hospitalized patients with alcoholic cirrhosis without severe alcoholic hepatitis, defined as Maddrey's discriminant function score lower than 32, from the retrospective Korean Acute-on-Chronic Liver Failure (KACLiF) cohort to develop a new prognostic model (training set), and validated it in 419 patients from the prospective KACLiF cohort (validation set). Prognostic factors for death and liver transplantation were analyzed to construct a prognostic model. RESULTS Twenty-one and 24 patients died within 6 months in both sets, respectively. In the training set, the highest area under the curve (AUC) of conventional prognostic models was 0.765, 0.732, and 0.684 for 1-, 3-, and 6-month mortality, respectively. Refractory ascites, vasopressor use, and hyponatremia were independently associated with mortality of cirrhotic patients with Non-SAH. The new model consisted of four variables: past deterioration, neutrophil proportion > 70%, Na < 128 mmol/L, and vasopressor use. It showed the highest accuracy for short-term mortality in the training and validation sets (0.803 and 0.786; 0.797 and 0.776; and 0.789 and 0.721 for 1-, 3-, and 6-month mortality, respectively). CONCLUSION There is a group of patients with high risk among those classified as Non-SAH. The new model will help stratifying cirrhotic patients with Non-SAH more accurately in terms of prognosis. The patients with high Non-SAH score need to monitor closely and might be considered for preemptive liver transplantation. TRIAL REGESTRATION ClinicalTrials.gov identifier: NCT02650011.
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Affiliation(s)
- Tae Hyung Kim
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Korea University Ansan Hospital, Korea University Ansan Hospital, 123 Jeokgeum-ro, Danwon-gu, Ansan-si, 15355, Gyeonggi-do, Korea
- Department of Internal Medicine, Hallym University Sacred Heart Hospital, Anyang, Korea
| | - Hyung Joon Yim
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Korea University Ansan Hospital, Korea University Ansan Hospital, 123 Jeokgeum-ro, Danwon-gu, Ansan-si, 15355, Gyeonggi-do, Korea.
| | - Young Kul Jung
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Korea University Ansan Hospital, Korea University Ansan Hospital, 123 Jeokgeum-ro, Danwon-gu, Ansan-si, 15355, Gyeonggi-do, Korea
| | - Do Seon Song
- Department of Internal medicine, St. Vincent's Hospital, The Catholic University of Korea, Suwon, Korea
| | - Eileen L Yoon
- Department of Internal Medicine, Hanyang University Seoul Hospital, Seoul, Korea
| | - Hee Yeon Kim
- Department of Internal medicine, Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Uijeongbu, Korea
- Department of Internal medicine, Bucheon St. Mary's Hospital, The Catholic University of Korea, Bucheon, Korea
| | - Seong Hee Kang
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Korea University Ansan Hospital, Korea University Ansan Hospital, 123 Jeokgeum-ro, Danwon-gu, Ansan-si, 15355, Gyeonggi-do, Korea
- Department of Internal Medicine, Yonsei University Wonju Severance Christian Hospital, Wonju, Korea
| | - Young Chang
- Department of Internal Medicine, Soonchunhyang University Seoul Hospital, Seoul, Korea
| | - Jeong-Ju Yoo
- Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Baek Gyu Jun
- Department of Internal Medicine, Ulsan University Gangneung Asan Hospital, Gangneung, Korea
- Department of Internal Medicine, Asan Seoul Internal Medicine Clinic, Seoul, Korea
| | - Sung Won Lee
- Department of Internal medicine, Bucheon St. Mary's Hospital, The Catholic University of Korea, Bucheon, Korea
| | - Jung Gil Park
- Department of Internal Medicine, Yeungnam University Hospital, Daegu, Korea
| | - Ji Won Park
- Department of Internal Medicine, Hallym University Sacred Heart Hospital, Anyang, Korea
| | - Sung-Eun Kim
- Department of Internal Medicine, Hallym University Sacred Heart Hospital, Anyang, Korea
| | - Tae Yeob Kim
- Department of Internal Medicine, New Hope Internal Medicine Clinic Seoul, Seoul, Korea
| | - Soung Won Jeong
- Department of Internal Medicine, Soonchunhyang University Seoul Hospital, Seoul, Korea
| | - Ki Tae Suk
- Department of Internal Medicine, Hallym University Chuncheon Sacred Heart Hospital, Hallym University College of Medicine, Chuncheon-si, 24253, Gangwon-do, Korea
| | - Moon Young Kim
- Department of Internal Medicine, Yonsei University Wonju Severance Christian Hospital, Wonju, Korea
| | - Sang Gyune Kim
- Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Won Kim
- Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, Korea
| | - Jae Young Jang
- Department of Internal Medicine, Soonchunhyang University Seoul Hospital, Seoul, Korea
| | - Jin Mo Yang
- Department of Internal medicine, St. Vincent's Hospital, The Catholic University of Korea, Suwon, Korea
| | - Dong Joon Kim
- Department of Internal Medicine, Hallym University Chuncheon Sacred Heart Hospital, Hallym University College of Medicine, Chuncheon-si, 24253, Gangwon-do, Korea.
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Lee A, Kim SY, Kang S, Kang SH, Kim DW, Choe JW, Hyun JJ, Jung SW, Jung YK, Koo JS, Yim HJ, Kim S. Effect of Probiotics in Stress-Associated Constipation Model in Zebrafish ( Danio rerio) Larvae. Int J Mol Sci 2024; 25:3669. [PMID: 38612481 PMCID: PMC11012156 DOI: 10.3390/ijms25073669] [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: 02/21/2024] [Revised: 03/18/2024] [Accepted: 03/22/2024] [Indexed: 04/14/2024] Open
Abstract
The pathophysiology of functional bowel disorders is complex, involving disruptions in gut motility, visceral hypersensitivity, gut-brain-microbiota interactions, and psychosocial factors. Light pollution, as an environmental stressor, has been associated with disruptions in circadian rhythms and the aggravation of stress-related conditions. In this study, we investigated the effects of environmental stress, particularly continuous light exposure, on intestinal motility and inflammation using zebrafish larvae as a model system. We also evaluated the efficacy of probiotics, specifically Bifidobacterium longum (B. longum), at alleviating stress-induced constipation. Our results showed that continuous light exposure in zebrafish larvae increased the cortisol levels and reduced the intestinal motility, establishing a stress-induced-constipation model. We observed increased inflammatory markers and decreased intestinal neural activity in response to stress. Furthermore, the expressions of aquaporins and vasoactive intestinal peptide, crucial for regulating water transport and intestinal motility, were altered in the light-induced constipation model. Administration of probiotics, specifically B. longum, ameliorated the stress-induced constipation by reducing the cortisol levels, modulating the intestinal inflammation, and restoring the intestinal motility and neural activity. These findings highlight the potential of probiotics to modulate the gut-brain axis and alleviate stress-induced constipation. Therefore, this study provides a valuable understanding of the complex interplay among environmental stressors, gut function, and potential therapeutic strategies.
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Affiliation(s)
- Ayoung Lee
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, College of Medicine, Korea University, Ansan 15355, Republic of Korea; (A.L.); (S.Y.K.); (S.H.K.); (D.W.K.); (J.W.C.); (J.J.H.); (S.W.J.); (Y.K.J.); (J.S.K.); (H.J.Y.)
| | - Seung Young Kim
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, College of Medicine, Korea University, Ansan 15355, Republic of Korea; (A.L.); (S.Y.K.); (S.H.K.); (D.W.K.); (J.W.C.); (J.J.H.); (S.W.J.); (Y.K.J.); (J.S.K.); (H.J.Y.)
- Zebrafish Translational Medical Research Center, Korea University, Ansan 15355, Republic of Korea;
| | - Seyoung Kang
- Zebrafish Translational Medical Research Center, Korea University, Ansan 15355, Republic of Korea;
| | - Seong Hee Kang
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, College of Medicine, Korea University, Ansan 15355, Republic of Korea; (A.L.); (S.Y.K.); (S.H.K.); (D.W.K.); (J.W.C.); (J.J.H.); (S.W.J.); (Y.K.J.); (J.S.K.); (H.J.Y.)
| | - Dong Woo Kim
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, College of Medicine, Korea University, Ansan 15355, Republic of Korea; (A.L.); (S.Y.K.); (S.H.K.); (D.W.K.); (J.W.C.); (J.J.H.); (S.W.J.); (Y.K.J.); (J.S.K.); (H.J.Y.)
| | - Jung Wan Choe
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, College of Medicine, Korea University, Ansan 15355, Republic of Korea; (A.L.); (S.Y.K.); (S.H.K.); (D.W.K.); (J.W.C.); (J.J.H.); (S.W.J.); (Y.K.J.); (J.S.K.); (H.J.Y.)
| | - Jong Jin Hyun
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, College of Medicine, Korea University, Ansan 15355, Republic of Korea; (A.L.); (S.Y.K.); (S.H.K.); (D.W.K.); (J.W.C.); (J.J.H.); (S.W.J.); (Y.K.J.); (J.S.K.); (H.J.Y.)
| | - Sung Woo Jung
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, College of Medicine, Korea University, Ansan 15355, Republic of Korea; (A.L.); (S.Y.K.); (S.H.K.); (D.W.K.); (J.W.C.); (J.J.H.); (S.W.J.); (Y.K.J.); (J.S.K.); (H.J.Y.)
| | - Young Kul Jung
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, College of Medicine, Korea University, Ansan 15355, Republic of Korea; (A.L.); (S.Y.K.); (S.H.K.); (D.W.K.); (J.W.C.); (J.J.H.); (S.W.J.); (Y.K.J.); (J.S.K.); (H.J.Y.)
| | - Ja Seol Koo
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, College of Medicine, Korea University, Ansan 15355, Republic of Korea; (A.L.); (S.Y.K.); (S.H.K.); (D.W.K.); (J.W.C.); (J.J.H.); (S.W.J.); (Y.K.J.); (J.S.K.); (H.J.Y.)
| | - Hyung Joon Yim
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, College of Medicine, Korea University, Ansan 15355, Republic of Korea; (A.L.); (S.Y.K.); (S.H.K.); (D.W.K.); (J.W.C.); (J.J.H.); (S.W.J.); (Y.K.J.); (J.S.K.); (H.J.Y.)
| | - Suhyun Kim
- Zebrafish Translational Medical Research Center, Korea University, Ansan 15355, Republic of Korea;
- Department of Biomedical Sciences, College of Medicine, Korea University, Seoul 04763, Republic of Korea
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Son J, Jeon J, Cho K, Kim S. Generation and Storage of Random Voltage Values via Ring Oscillators Comprising Feedback Field-Effect Transistors. Nanomaterials (Basel) 2024; 14:562. [PMID: 38607097 PMCID: PMC11013403 DOI: 10.3390/nano14070562] [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] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 03/20/2024] [Accepted: 03/21/2024] [Indexed: 04/13/2024]
Abstract
In this study, we demonstrate the generation and storage of random voltage values using a ring oscillator consisting of feedback field-effect transistors (FBFETs). This innovative approach utilizes the logic-in-memory function of FBFETs to extract continuous output voltages from oscillatory cycles. The ring oscillator exhibited uniform probability distributions of 51.6% for logic 0 and 48.4% for logic 1. The generation of analog voltages provides binary random variables that are stored for over 5000 s. This demonstrates the potential of the ring oscillator in advanced physical functions and true random number generator technologies.
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Affiliation(s)
| | | | - Kyoungah Cho
- Department of Electrical Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea; (J.S.); (J.J.)
| | - Sangsig Kim
- Department of Electrical Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea; (J.S.); (J.J.)
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7
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Min KH, Kim DH, Pack SP. Size Control of Biomimetic Curved-Edge Vaterite with Chiral Toroid Morphology via Sonochemical Synthesis. Biomimetics (Basel) 2024; 9:174. [PMID: 38534858 DOI: 10.3390/biomimetics9030174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 03/08/2024] [Accepted: 03/12/2024] [Indexed: 03/28/2024] Open
Abstract
The metastable vaterite polymorph of calcium carbonate (CaCO3) holds significant practical importance, particularly in regenerative medicine, drug delivery, and various personal care products. Controlling the size and morphology of vaterite particles is crucial for biomedical applications. This study explored the synergistic effect of ultrasonic (US) irradiation and acidic amino acids on CaCO3 synthesis, specifically the size, dispersity, and crystallographic phase of curved-edge vaterite with chiral toroids (chiral-curved vaterite). We employed 40 kHz US irradiation and introduced L- or D-aspartic acid as an additive for the formation of spheroidal chiral-curved vaterite in an aqueous solution of CaCl2 and Na2CO3 at 20 ± 1 °C. Chiral-curved vaterites precipitated through mechanical stirring (without US irradiation) exhibited a particle size of approximately 15 μm, whereas those formed under US irradiation were approximately 6 μm in size and retained their chiral topoid morphology. When a fluorescent dye was used for the analysis of loading efficiency, the size-reduced vaterites with chiral morphology, produced through US irradiation, exhibited a larger loading efficiency than the vaterites produced without US irradiation. These results hold significant value for the preparation of biomimetic chiral-curved CaCO3, specifically size-reduced vaterites, as versatile biomaterials for material filling, drug delivery, and bone regeneration.
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Affiliation(s)
- Ki Ha Min
- Institute of Industrial Technology, Korea University, Sejong 30019, Republic of Korea
- Department of Biotechnology and Bioinformatics, Korea University, Sejong 30019, Republic of Korea
| | - Dong Hyun Kim
- Department of Biotechnology and Bioinformatics, Korea University, Sejong 30019, Republic of Korea
| | - Seung Pil Pack
- Department of Biotechnology and Bioinformatics, Korea University, Sejong 30019, Republic of Korea
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8
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Rhim HC, Ruiz J, Taseh A, Afunugo W, Crockett Z, Schon J, Pan X, Shin J, Schowalter S, Jang KM, Robinson DM. Nonsteroidal Anti-Inflammatory Drug Injections versus Steroid Injections in the Management of Upper and Lower Extremity Orthopedic Conditions: A Systematic Review with Meta-Analysis. J Clin Med 2024; 13:1132. [PMID: 38398445 PMCID: PMC10889729 DOI: 10.3390/jcm13041132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 01/31/2024] [Accepted: 02/14/2024] [Indexed: 02/25/2024] Open
Abstract
BACKGROUND Although corticosteroid injections are an effective treatment for musculoskeletal pathologies, they may not be suitable for all patients. The purpose of this systematic review was to compare clinical outcomes between patients who received NSAID and corticosteroid injections for various orthopedic conditions. METHODS Medline, Embase, Web of Science, and Cochrane Central Register of Controlled Trials were searched, and meta-analyses were performed using a random-effects model for outcomes presented in three or more studies. Other studies were qualitatively analyzed. RESULTS A total of 28 articles with 2113 patients were included. A meta-analysis of five studies in patients with shoulder impingement syndrome demonstrated that there was no significant difference in the pain visual analogue scale (VAS) between subacromial NSAID injections and corticosteroid injections at 1 month [weighted mean difference (WMD) -0.244; 95% CI, -1.232 to 0.745; I2, 94.5%]. For patients with knee osteoarthritis, a meta-analysis of three studies demonstrated that there was no significant difference between intraarticular NSAID injections and corticosteroid injections in pain VAS at 1 month (WMD 0.754; 95% CI, -0.413 to 1.921; I2, 90.2%) and 3 months (WMD-0.089; 95% CI, -0.345 to 0.166; I2, 0%). A review of the studies assessing pain outcomes for hip osteoarthritis, adhesive capsulitis, and plantar fasciitis showed no significant differences between the NSAID and corticosteroid groups. CONCLUSION NSAID injections may be safe and effective alternatives to steroid injections, especially in shoulder impingement syndrome and knee osteoarthritis.
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Affiliation(s)
- Hye Chang Rhim
- Department of Physical Medicine and Rehabilitation, Harvard Medical School/Spaulding Rehabilitation Hospital, Boston, MA 02115, USA; (H.C.R.); (J.R.); (W.A.); (Z.C.); (J.S.); (D.M.R.)
- Foot & Ankle Research and Innovation Lab (FARIL), Department of Orthopaedic Surgery, Harvard Medical School, Massachusetts General Hospital, Boston, MA 02115, USA; (A.T.); (J.S.)
| | - Joseph Ruiz
- Department of Physical Medicine and Rehabilitation, Harvard Medical School/Spaulding Rehabilitation Hospital, Boston, MA 02115, USA; (H.C.R.); (J.R.); (W.A.); (Z.C.); (J.S.); (D.M.R.)
| | - Atta Taseh
- Foot & Ankle Research and Innovation Lab (FARIL), Department of Orthopaedic Surgery, Harvard Medical School, Massachusetts General Hospital, Boston, MA 02115, USA; (A.T.); (J.S.)
| | - Wilma Afunugo
- Department of Physical Medicine and Rehabilitation, Harvard Medical School/Spaulding Rehabilitation Hospital, Boston, MA 02115, USA; (H.C.R.); (J.R.); (W.A.); (Z.C.); (J.S.); (D.M.R.)
| | - Zack Crockett
- Department of Physical Medicine and Rehabilitation, Harvard Medical School/Spaulding Rehabilitation Hospital, Boston, MA 02115, USA; (H.C.R.); (J.R.); (W.A.); (Z.C.); (J.S.); (D.M.R.)
| | - Jason Schon
- Department of Physical Medicine and Rehabilitation, Harvard Medical School/Spaulding Rehabilitation Hospital, Boston, MA 02115, USA; (H.C.R.); (J.R.); (W.A.); (Z.C.); (J.S.); (D.M.R.)
| | - Xiaoyu Pan
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA;
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | - Jaehyung Shin
- Foot & Ankle Research and Innovation Lab (FARIL), Department of Orthopaedic Surgery, Harvard Medical School, Massachusetts General Hospital, Boston, MA 02115, USA; (A.T.); (J.S.)
| | - Sean Schowalter
- Department of Sports Medicine, Mount Sinai School of Medicine, New York, NY 10029, USA
| | - Ki-Mo Jang
- Department of Orthopaedic Surgery, Anam Hospital, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - David M Robinson
- Department of Physical Medicine and Rehabilitation, Harvard Medical School/Spaulding Rehabilitation Hospital, Boston, MA 02115, USA; (H.C.R.); (J.R.); (W.A.); (Z.C.); (J.S.); (D.M.R.)
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Byun J, Tai J, Kim B, Kim J, Jung S, Lee J, Song YW, Shin J, Kim TH. Identification of Hit Compounds Using Artificial Intelligence for the Management of Allergic Diseases. Int J Mol Sci 2024; 25:2280. [PMID: 38396957 PMCID: PMC10889320 DOI: 10.3390/ijms25042280] [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: 01/05/2024] [Revised: 01/22/2024] [Accepted: 01/24/2024] [Indexed: 02/25/2024] Open
Abstract
This study aimed to identify and evaluate drug candidates targeting the kinase inhibitory region of suppressor of cytokine signaling (SOCS) 3 for the treatment of allergic rhinitis (AR). Utilizing an artificial intelligence (AI)-based new drug development platform, virtual screening was conducted to identify compounds inhibiting the SH2 domain binding of SOCS3. Luminescence assays assessed the ability of these compounds to restore JAK-2 activity diminished by SOCS3. Jurkat T and BEAS-2B cells were utilized to investigate changes in SOCS3 and STAT3 expression, along with STAT3 phosphorylation in response to the identified compounds. In an OVA-induced allergic rhinitis mouse model, we measured serum levels of total IgE and OVA-specific IgE, performed real-time PCR on nasal mucosa samples to quantify Th2 cytokines and IFN-γ expression, and conducted immunohistochemistry to analyze eosinophil levels. Screening identified 20 hit compounds with robust binding affinities. As the concentration of SOCS3 increased, a corresponding decrease in JAK2 activity was observed. Compounds 5 and 8 exhibited significant efficacy in restoring JAK2 activity without toxicity. Treatment with these compounds resulted in reduced SOCS3 expression and the reinstatement of STAT3 phosphorylation in Jurkat T and BEAS-2B cells. In the OVA-induced allergic rhinitis mouse model, compounds 5 and 8 effectively alleviated nasal symptoms and demonstrated lower levels of immune markers compared to the allergy group. This study underscores the promising nonclinical efficacy of compounds identified through the AI-based drug development platform. These findings introduce innovative strategies for the treatment of AR and highlight the potential therapeutic value of targeting SOCS3 in managing AR.
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Affiliation(s)
- Junhyoung Byun
- Department of Otorhinolaryngology-Head & Neck Surgery, College of Medicine, Korea University, 02842 Seoul, Republic of Korea
- Mucosal Immunology Institute, College of Medicine, Korea University, 02842 Seoul, Republic of Korea
| | - Junhu Tai
- Department of Otorhinolaryngology-Head & Neck Surgery, College of Medicine, Korea University, 02842 Seoul, Republic of Korea
| | - Byoungjae Kim
- Department of Otorhinolaryngology-Head & Neck Surgery, College of Medicine, Korea University, 02842 Seoul, Republic of Korea
- Neuroscience Research Institute, College of Medicine, Korea University, 02842 Seoul, Republic of Korea
| | - Jaehyeong Kim
- Department of Otorhinolaryngology-Head & Neck Surgery, College of Medicine, Korea University, 02842 Seoul, Republic of Korea
- Mucosal Immunology Institute, College of Medicine, Korea University, 02842 Seoul, Republic of Korea
| | - Semyung Jung
- Department of Otorhinolaryngology-Head & Neck Surgery, College of Medicine, Korea University, 02842 Seoul, Republic of Korea
| | - Juhyun Lee
- Department of Otorhinolaryngology-Head & Neck Surgery, College of Medicine, Korea University, 02842 Seoul, Republic of Korea
| | - Youn woo Song
- Department of Otorhinolaryngology-Head & Neck Surgery, College of Medicine, Korea University, 02842 Seoul, Republic of Korea
- Mucosal Immunology Institute, College of Medicine, Korea University, 02842 Seoul, Republic of Korea
| | - Jaemin Shin
- Department of Otorhinolaryngology-Head & Neck Surgery, College of Medicine, Korea University, 02842 Seoul, Republic of Korea
- Mucosal Immunology Institute, College of Medicine, Korea University, 02842 Seoul, Republic of Korea
| | - Tae Hoon Kim
- Department of Otorhinolaryngology-Head & Neck Surgery, College of Medicine, Korea University, 02842 Seoul, Republic of Korea
- Mucosal Immunology Institute, College of Medicine, Korea University, 02842 Seoul, Republic of Korea
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Moon YJ, Ahn TY, Suh SW, Park KB, Chang SY, Yoon DK, Kim MS, Kim H, Jeon YD, Yang JH. A Preliminary Diagnostic Model for Forward Head Posture among Adolescents Using Forward Neck Tilt Angle and Radiographic Sagittal Alignment Parameters. Diagnostics (Basel) 2024; 14:394. [PMID: 38396433 PMCID: PMC10887830 DOI: 10.3390/diagnostics14040394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 02/06/2024] [Accepted: 02/07/2024] [Indexed: 02/25/2024] Open
Abstract
Despite numerous attempts to correct forward head posture (FHP), definitive evidence-based screening and diagnostic methods remain elusive. This study proposes a preliminary diagnostic methodology for FHP, utilizing a noninvasive body angle measurement system as a screening test for FHP and incorporating radiological parameters for sagittal alignment. We enrolled 145 adolescents for FHP screening. The forward neck tilt angle (FNTA), defined as the angle between the vertical line and the line connecting the participant's acromion and tragus, was measured using the POM-Checker (a noninvasive depth sensor-based body angle measurement system). A whole-spine standing lateral radiograph was obtained, and eight sagittal alignment parameters were measured. Statistical analyses of the association between the FNTA and eight sagittal alignment parameters were conducted. We used 70% of the participant data to establish a preliminary diagnostic model for FHP based on FNTA and each sagittal alignment parameter. The accuracy of the model was evaluated using the remaining 30% of the participant data. All radiological parameters of sagittal alignment showed weak statistical significance with respect to FNTA (best case: r = 0.16, p = 0.0500; cranial tilt). The proposed preliminary diagnostic model for FHP demonstrated 95.35% agreement. Notably, the model using FNTA without radiological parameters accurately identified (100%) participants who required radiographic scanning for FHP diagnosis. Owing to the weak statistical significance of the association between radiological parameters and external body angle, both factors must be considered for accurate FHP diagnosis. When a clear and severe angle variation is observed in an external body angle check, medical professionals should perform radiographic scanning for an accurate FHP diagnosis. In conclusion, FNTA assessment of FNTA through the proposed preliminary diagnostic model is a significant screening factor for selecting participants who must undergo radiographic scanning so that a diagnosis of FHP can be obtained.
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Affiliation(s)
- Young Jae Moon
- Department of Orthopaedic Surgery and Biochemistry, Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonbuk National University Medical School, Jeonju 54896, Republic of Korea;
| | - Tae Young Ahn
- Department of Orthopaedic Surgery, Bio-Medical Research Institute, Pusan National University Hospital, Pusan National University School of Medicine, Busan 49241, Republic of Korea;
| | - Seung Woo Suh
- Department of Orthopaedics, Scoliosis Research Institute, College of Medicine, Guro Hospital, Korea University, Seoul 08308, Republic of Korea;
| | - Kun-Bo Park
- Division of Pediatric Orthopaedic Surgery, Severance Children’s Hospital, Yonsei University College of Medicine, Seoul 03722, Republic of Korea;
| | - Sam Yeol Chang
- Department of Orthopedic Surgery, College of Medicine, Seoul National University Hospital, Seoul National University, Seoul 03080, Republic of Korea
| | - Do-Kun Yoon
- Industrial R&D Center, KAVILAB Co., Ltd., Seoul 06675, Republic of Korea; (D.-K.Y.); (M.-S.K.); (H.K.); (Y.D.J.)
- Department of Integrative Medicine, College of Medicine, Yonsei University of Korea, Seoul 03722, Republic of Korea
| | - Moo-Sub Kim
- Industrial R&D Center, KAVILAB Co., Ltd., Seoul 06675, Republic of Korea; (D.-K.Y.); (M.-S.K.); (H.K.); (Y.D.J.)
| | - Hyeonjoo Kim
- Industrial R&D Center, KAVILAB Co., Ltd., Seoul 06675, Republic of Korea; (D.-K.Y.); (M.-S.K.); (H.K.); (Y.D.J.)
| | - Yong Dae Jeon
- Industrial R&D Center, KAVILAB Co., Ltd., Seoul 06675, Republic of Korea; (D.-K.Y.); (M.-S.K.); (H.K.); (Y.D.J.)
| | - Jae Hyuk Yang
- Department of Orthopaedics, Scoliosis Research Institute, College of Medicine, Anam Hospital, Korea University, Seoul 02841, Republic of Korea
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11
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Min KH, Kim DH, Youn S, Pack SP. Biomimetic Diatom Biosilica and Its Potential for Biomedical Applications and Prospects: A Review. Int J Mol Sci 2024; 25:2023. [PMID: 38396701 PMCID: PMC10889112 DOI: 10.3390/ijms25042023] [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: 01/03/2024] [Revised: 01/28/2024] [Accepted: 02/05/2024] [Indexed: 02/25/2024] Open
Abstract
Diatom biosilica is an important natural source of porous silica, with three-dimensional ordered and nanopatterned structures referred to as frustules. The unique features of diatom frustules, such as their high specific surface area, thermal stability, biocompatibility, and adaptable surface chemistry, render diatoms valuable materials for high value-added applications. These attributes make diatoms an exceptional cost-effective raw material for industrial use. The functionalization of diatom biosilica surface improves its biophysical properties and increases the potential applications. This review focuses on the potential uses of diatom biosilica including traditional approaches and recent progress in biomedical applications. Not only well-studied drug delivery systems but also promising uses on bone regeneration and wound healing are covered. Furthermore, considerable aspects and possible future directions for the use of diatom biosilica materials are proposed to develop biomedical applications and merit further exploration.
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Affiliation(s)
- Ki Ha Min
- Institution of Industrial Technology, Korea University, Sejong 30019, Republic of Korea;
| | - Dong Hyun Kim
- Department of Biotechnology and Bioinformatics, Korea University, Sejong 30019, Republic of Korea; (D.H.K.); (S.Y.)
| | - Sol Youn
- Department of Biotechnology and Bioinformatics, Korea University, Sejong 30019, Republic of Korea; (D.H.K.); (S.Y.)
| | - Seung Pil Pack
- Department of Biotechnology and Bioinformatics, Korea University, Sejong 30019, Republic of Korea; (D.H.K.); (S.Y.)
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Kim HK, Choi SH, Kim DH, Jeong YT. Comprehensive mapping of Epithelial Na + channel α expression in the mouse brain. Brain Struct Funct 2024:10.1007/s00429-023-02755-3. [PMID: 38305875 DOI: 10.1007/s00429-023-02755-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 12/29/2023] [Indexed: 02/03/2024]
Abstract
Epithelial sodium channel (ENaC) is responsible for regulating Na+ homeostasis. While its physiological functions have been investigated extensively in peripheral tissues, far fewer studies have explored its functions in the brain. Since our limited knowledge of ENaC's distribution in the brain impedes our understanding of its functions there, we decided to explore the whole-brain expression pattern of the Scnn1a gene, which encodes the core ENaC complex component ENaCα. To visualize Scnn1a expression in the brain, we crossed Scnn1a-Cre mice with Rosa26-lsl-tdTomato mice. Brain sections were subjected to immunofluorescence staining using antibodies against NeuN or Myelin Binding Protein (MBP), followed by the acquisition of confocal images. We observed robust tdTomato fluorescence not only in the soma of cortical layer 4, the thalamus, and a subset of amygdalar nuclei, but also in axonal projections in the hippocampus and striatum. We also observed expression in specific hypothalamic nuclei. Contrary to previous reports, however, we did not detect significant expression in the circumventricular organs, which are known for their role in regulating Na+ balance. Finally, we detected fluorescence in cells lining the ventricles and in the perivascular cells of the median eminence. Our comprehensive mapping of Scnn1a-expressing cells in the brain will provide a solid foundation for further investigations of the physiological roles ENaC plays within the central nervous system.
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Affiliation(s)
- Ha Kyeong Kim
- BK21 Graduate Program, Department of Biomedical Sciences, Korea University College of Medicine, Seoul, 02841, Republic of Korea
- Department of Pharmacology, Korea University College of Medicine, Seoul, 02841, Republic of Korea
| | - Sang-Hyun Choi
- Department of Pharmacology, Korea University College of Medicine, Seoul, 02841, Republic of Korea
| | - Dong-Hoon Kim
- BK21 Graduate Program, Department of Biomedical Sciences, Korea University College of Medicine, Seoul, 02841, Republic of Korea
- Department of Pharmacology, Korea University College of Medicine, Seoul, 02841, Republic of Korea
| | - Yong Taek Jeong
- BK21 Graduate Program, Department of Biomedical Sciences, Korea University College of Medicine, Seoul, 02841, Republic of Korea.
- Department of Pharmacology, Korea University College of Medicine, Seoul, 02841, Republic of Korea.
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13
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Na YH, Kim WB, Kang JS, Choi SB, Kim WJ. Early outcomes of single-port robotic left lateral sectionectomy in patients with hepatic tumor. Ann Surg Treat Res 2024; 106:78-84. [PMID: 38318091 PMCID: PMC10838653 DOI: 10.4174/astr.2024.106.2.78] [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: 11/21/2023] [Revised: 12/08/2023] [Accepted: 12/22/2023] [Indexed: 02/07/2024] Open
Abstract
Purpose Laparoscopic left lateral sectionectomy (L-LLS) stands as a cornerstone procedure in hepatobiliary minimal surgery, frequently employed for various benign and malignant liver lesions. This study aimed to analyze the peri- and postoperative surgical outcomes of single-port robotic left lateral sectionectomy (SPR-LLS) vs. those of L-LLS in patients with hepatic tumors. Methods From January 2020 through June 2023, 12 patients underwent SPR-LLS. During the same period, 30 L-LLS procedures were performed. In total, 12 patients in the robotic group and 24 patients in the laparoscopic group were matched. Results When the SPR-LLS and L-LLS groups were compared, the operation time was longer in the SPR-LLS group with less blood loss and shorter hospital stay. Postoperative complications were observed in 3 patients in the L-LLS group (12.5%) and 1 patient in the SPR-LLS group (8.3%). Conclusion SPR-LLS using the da Vinci SP system was comparable to laparoscopic LLS in terms of surgical outcomes. SPR-LLS was associated with lower blood loss and less postoperative length of stay compared to L-LLS. These findings suggest that left lateral sectionectomy is technically feasible and safe with the da Vinci SP system in select patients.
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Affiliation(s)
- Young-Hyun Na
- Division of Pediatric Surgery, Department of Surgery, Korea University Guro Hospital, Korea University Medical College, Seoul, Korea
| | - Wan-Bae Kim
- Division of Hepatobiliary Pancreas Surgery, Department of Surgery, Korea University Guro Hospital, Korea University Medical College, Seoul, Korea
| | - Jae-Seung Kang
- Division of Hepatobiliary Pancreas Surgery, Department of Surgery, Korea University Guro Hospital, Korea University Medical College, Seoul, Korea
| | - Sae Byeol Choi
- Division of Hepatobiliary Pancreas Surgery, Department of Surgery, Korea University Guro Hospital, Korea University Medical College, Seoul, Korea
| | - Wan-Joon Kim
- Division of Hepatobiliary Pancreas Surgery, Department of Surgery, Korea University Guro Hospital, Korea University Medical College, Seoul, Korea
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Yu J, Kim S. Identification of Coronary Healed Plaque Using a Combined High-Definition 35-65 MHz Intravascular Ultrasound and Near-Infrared Spectroscopy. Korean Circ J 2024; 54:110-112. [PMID: 38346699 PMCID: PMC10864254 DOI: 10.4070/kcj.2023.0314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 12/20/2023] [Indexed: 02/16/2024] Open
Affiliation(s)
- Jiyeon Yu
- Cardiovascular Center, Korea University Ansan Hospital, Ansan, Korea
| | - Sunwon Kim
- Cardiovascular Center, Korea University Ansan Hospital, Ansan, Korea.
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15
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Kim YS, Noh JW, Lee YH, Kim SG. Mid-Term Strategic Plan for the Public Health and Medical Care Cooperation in the Korean Peninsula. J Korean Med Sci 2024; 39:e39. [PMID: 38288540 PMCID: PMC10825449 DOI: 10.3346/jkms.2024.39.e39] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 12/28/2023] [Indexed: 02/01/2024] Open
Abstract
As extensive as the concept of and the resources required for 'Health for Korean Unification' are, and due to the limited access to information on the state of health and medical care in North Korea, discussion on 'Health for Korean Unification' has tended to be intermittent and lacked concrete action plans. In this article, we specifically distinguished areas of cooperation and selected five executable agenda that meet the goals of international development cooperation: 1) Health security; 2) Easing the burden of major diseases; 3) Resilient healthcare system; 4) R&D cooperation; 5) Sustainable cooperation system. Then we provided corresponding strategic priorities and operative directions, in consideration of future military and political sanctions against North Korea. The strategies we outline are sustainable, preemptive for problems that might affect lives of South and North Korean citizens, and satisfy the unmet needs of the North Korean health system. Throughout the process, we utilized a special platform, the 'Korean Peninsula Healthcare Cooperation Platform,' designed to enable continual communication across sectors engaged in public health and medical care. By doing so, we take the first step to actually carry out the 'Health for Korean Unification,' which tended to have remained on the discussion agenda.
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Affiliation(s)
- Yun Seop Kim
- Korea University College of Medicine, Seoul, Korea
| | - Jin-Won Noh
- Division of Health Administration, College of Software and Digital Healthcare Convergence, Yonsei University, Wonju, Korea
| | - Yo Han Lee
- Department of Preventive Medicine, Korea University College of Medicine, Seoul, Korea
- Department of Healthcare and Medicine for Unified Korea, Graduate School, Korea University, Seoul, Korea.
| | - Sin Gon Kim
- Department of Healthcare and Medicine for Unified Korea, Graduate School, Korea University, Seoul, Korea
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
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Kim SH, Keum B, Kwak S, Byun J, Shin JM, Kim TH. Therapeutic Applications of Extracellular Vesicles in Inflammatory Bowel Disease. Int J Mol Sci 2024; 25:745. [PMID: 38255819 PMCID: PMC10815267 DOI: 10.3390/ijms25020745] [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: 11/29/2023] [Revised: 12/28/2023] [Accepted: 01/02/2024] [Indexed: 01/24/2024] Open
Abstract
The treatment landscape for inflammatory bowel disease (IBD) has undergone substantial advancements with the introduction of biologics. However, a considerable number of patients either show an immediate lack of response or lose responsiveness over time, necessitating the development of innovative and effective treatment approaches. Extracellular vesicles (EVs) are small lipid bilayer-enclosed structures that facilitate cell-to-cell molecular transfer and are integral to the pathogenesis of IBD. They play pivotal roles in maintaining the integrity of the intestinal epithelial barrier and the expulsion of cellular metabolites. The potential use of EVs as drug carriers or therapeutic agents has opened up a plethora of clinical applications. This review investigates the creation and content of EVs, their role in IBD development, and advances in their isolation and analytical techniques. Furthermore, the therapeutic promise they hold for IBD is explored, along with the latest research on their roles as IBD drug delivery systems.
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Affiliation(s)
- Sang Hyun Kim
- Department of Internal Medicine, Korea University College of Medicine, Seoul 02841, Republic of Korea; (S.H.K.)
| | - Bora Keum
- Department of Internal Medicine, Korea University College of Medicine, Seoul 02841, Republic of Korea; (S.H.K.)
| | - Sooun Kwak
- Department of Otorhinolaryngology—Head & Neck Surgery, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Junhyoung Byun
- Department of Otorhinolaryngology—Head & Neck Surgery, Korea University College of Medicine, Seoul 02841, Republic of Korea
- Mucosal Immunology Institute, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Jae Min Shin
- Department of Otorhinolaryngology—Head & Neck Surgery, Korea University College of Medicine, Seoul 02841, Republic of Korea
- Mucosal Immunology Institute, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Tae Hoon Kim
- Department of Otorhinolaryngology—Head & Neck Surgery, Korea University College of Medicine, Seoul 02841, Republic of Korea
- Mucosal Immunology Institute, Korea University College of Medicine, Seoul 02841, Republic of Korea
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Tae BS, Ahn ST, Yoo JW, Song MS, Choi H, Bae JH, Park JY. Is There a Difference in the Incidence of Depression between Radiation and Surgical Treatments in Patients with Prostate Cancer? World J Mens Health 2024; 42:237-244. [PMID: 38171378 PMCID: PMC10782121 DOI: 10.5534/wjmh.230119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 08/24/2023] [Accepted: 09/01/2023] [Indexed: 01/05/2024] Open
Abstract
PURPOSE Patients with cancer have a high risk of depression. However, a few studies have assessed differences in the incidence of depression among patients with prostate cancer (PC) based on whether they received radiotherapy (RTx) or surgical treatment. MATERIALS AND METHODS We analyzed data from the National Health Insurance Sharing Service database regarding the entire Korean adult population with PC (n=210,924) between 2007 and 2017. The adjusted hazard ratios (HRs) of depression associated with treatment were estimated using propensity score-matched Cox proportional hazards models and Kaplan-Meier survival analyses. RESULTS Our final cohort comprised 9,456 patients with PC; of which, 8,050 men underwent surgery. During a mean follow-up duration of 7.1 years, 503 (5.3%) patients were newly diagnosed with depression. A significant difference in the incidence of depression was noted between the RTx and surgery groups (RTx vs. surgery: 5.55% vs. 5.28%; p=0.011) in the unmatched cohort. In the matched cohort, older age (≥70 years, HR: 1.596, p<0.001) and poor Charlson comorbidity index scores (HR: 1.232, p=0.039) were correlated with the risk of depression. In addition, the adjusted HR for depression in the surgery group was 0.843 (p=0.221) compared with that in the RTx group. Kaplan-Meier analyses revealed that no significant difference in the cumulative probability of persistent depression was detected between the RTx and surgery groups in matched cohort (p=0.3386). CONCLUSIONS In this nationwide population-based study, no significant differences in the risk of depression were observed between the surgical and RTx groups.
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Affiliation(s)
- Bum Sik Tae
- Department of Urology, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea
| | - Sun Tae Ahn
- Department of Urology, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - Jung Wan Yoo
- Department of Urology, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea
| | - Min Sung Song
- Department of Urology, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea
| | - Hoon Choi
- Department of Urology, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea
| | - Jae Hyun Bae
- Department of Urology, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea
| | - Jae Young Park
- Department of Urology, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea.
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Lee DY, Jung I, Park SY, Yu JH, Seo JA, Kim KJ, Kim NH, Yoo HJ, Kim SG, Choi KM, Baik SH, Kim NH. Attention to Innate Circadian Rhythm and the Impact of Its Disruption on Diabetes. Diabetes Metab J 2024; 48:37-52. [PMID: 38173377 PMCID: PMC10850272 DOI: 10.4093/dmj.2023.0193] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 10/16/2023] [Indexed: 01/05/2024] Open
Abstract
Novel strategies are required to reduce the risk of developing diabetes and/or clinical outcomes and complications of diabetes. In this regard, the role of the circadian system may be a potential candidate for the prevention of diabetes. We reviewed evidence from animal, clinical, and epidemiological studies linking the circadian system to various aspects of the pathophysiology and clinical outcomes of diabetes. The circadian clock governs genetic, metabolic, hormonal, and behavioral signals in anticipation of cyclic 24-hour events through interactions between a "central clock" in the suprachiasmatic nucleus and "peripheral clocks" in the whole body. Currently, circadian rhythmicity in humans can be subjectively or objectively assessed by measuring melatonin and glucocorticoid levels, core body temperature, peripheral blood, oral mucosa, hair follicles, rest-activity cycles, sleep diaries, and circadian chronotypes. In this review, we summarized various circadian misalignments, such as altered light-dark, sleep-wake, rest-activity, fasting-feeding, shift work, evening chronotype, and social jetlag, as well as mutations in clock genes that could contribute to the development of diabetes and poor glycemic status in patients with diabetes. Targeting critical components of the circadian system could deliver potential candidates for the treatment and prevention of type 2 diabetes mellitus in the future.
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Affiliation(s)
- Da Young Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Inha Jung
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - So Young Park
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Ji Hee Yu
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Ji A Seo
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Kyeong Jin Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Nam Hoon Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Hye Jin Yoo
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Sin Gon Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Kyung Mook Choi
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Sei Hyun Baik
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Nan Hee Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
- BK21 FOUR R&E Center for Learning Health Systems, Korea University, Seoul, Korea
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Lee J, Lee J, Lee G, Kim DS, Ryu YS, Seo M. Advancements of Intense Terahertz Field Focusing on Metallic Nanoarchitectures for Monitoring Hidden Interatomic Gas-Matter Interactions. Adv Mater 2024; 36:e2308975. [PMID: 37994274 DOI: 10.1002/adma.202308975] [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] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 11/07/2023] [Indexed: 11/24/2023]
Abstract
With the advancements of nanotechnology, innovative photonic designs coupled with functional materials provide a unique way to acquire, share, and respond effectively to information. It is found that the simple deposition of a 30 nm-thick palladium nanofilm on a terahertz (THz) metasurface chip with a 14 nm-wide effective nanogap of asymmetric materials and geometries allows the tracking of both interatomic and interfacial gas-matter interactions, including gas adsorption, hydrogenation (or dehydrogenation), metal phase changes, and unique water-forming reactions. Combinatorial analyses by simulation and experimental measurements demonstrate the distinct nanostructures, which leads to significant light-matter interactions and corresponding THz absorption in a real-time, highly repeatable, and reliable manner. The complex lattice dynamics and intrinsic properties of metals influenced by hydrogen gas exposure are also thoroughly examined using systematically controlled ternary gas mixture devices that mimic normal temperature and pressure. Furthermore, the novel degrees of freedom are utilized to analyze various physical phenomena, and thus, analytical methods that enable the tracking of unknown hidden stages of water-forming reactions resulting in water growth are introduced. A single exposure of the wave spectrum emphasizes the robustness of the proposed THz nanoscopic probe, bridging the gap between fundamental laboratory research and industry.
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Affiliation(s)
- Jinwoo Lee
- Sensor System Research Center, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, 02841, Republic of Korea
| | - Jongsu Lee
- Sensor System Research Center, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
- Department of Electrical Engineering and Computer Science, Northwestern University, Evanston, IL, 60208, USA
| | - Geon Lee
- Sensor System Research Center, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
- Department of Physics and Astronomy, Seoul National University, Seoul, 08826, Republic of Korea
- Department of Physics, Long-wavelength Nanotechnology Laboratory, and Quantum Photonics Institute, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Dai-Sik Kim
- Department of Physics and Astronomy, Seoul National University, Seoul, 08826, Republic of Korea
- Department of Physics, Long-wavelength Nanotechnology Laboratory, and Quantum Photonics Institute, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Yong-Sang Ryu
- School of Biomedical Engineering, Korea University, Seoul, 02841, Republic of Korea
- Interdisciplinary Program in Precision Public Health, Korea University, Seoul, 02841, Republic of Korea
| | - Minah Seo
- Sensor System Research Center, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, 02841, Republic of Korea
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So S, Yun J, Ko B, Lee D, Kim M, Noh J, Park C, Park J, Rho J. Radiative Cooling for Energy Sustainability: From Fundamentals to Fabrication Methods Toward Commercialization. Adv Sci (Weinh) 2024; 11:e2305067. [PMID: 37949679 PMCID: PMC10787071 DOI: 10.1002/advs.202305067] [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] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 09/18/2023] [Indexed: 11/12/2023]
Abstract
Radiative cooling, a technology that lowers the temperature of terrestrial objects by dissipating heat into outer space, presents a promising ecologically-benign solution for sustainable cooling. Recent years witness substantial progress in radiative cooling technologies, bringing them closer to commercialization. This comprehensive review provides a structured overview of radiative cooling technologies, encompassing essential principles, fabrication techniques, and practical applications, with the goal of guiding researchers toward successful commercialization. The review begins by introducing the fundamentals of radiative cooling and the associated design strategies to achieve it. Then, various fabrication methods utilized for the realization of radiative cooling devices are thoroughly discussed. This discussion includes detailed assessments of scalability, fabrication costs, and performance considerations, encompassing both structural designs and fabrication techniques. Building upon these insights, potential fabrication approaches suitable for practical applications and commercialization are proposed. Further, the recent efforts made toward the practical applications of radiative cooling technology, including its visual appearance, switching capability, and compatibility are examined. By encompassing a broad range of topics, from fundamental principles to fabrication and applications, this review aims to bridge the gap between theoretical research and real-world implementation, fostering the advancement and widespread adoption of radiative cooling technology.
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Affiliation(s)
- Sunae So
- Graduate School of Artificial Intelligence, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
- Department of Electro-Mechanical Systems Engineering, Korea University, Sejong, 30019, Republic of Korea
| | - Jooyeong Yun
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Byoungsu Ko
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Dasol Lee
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
- Department of Biomedical Engineering, Yonsei University, Wonju, 26493, Republic of Korea
| | - Minkyung Kim
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
- School of Mechanical Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - Jaebum Noh
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Cherry Park
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Junkyeong Park
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Junsuk Rho
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
- POSCO-POSTECH-RIST Convergence Research Center for Flat Optics and Metaphotonics, Pohang, 37673, Republic of Korea
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Kim JY, Song HJ, Cheon S, An S, Lee CS, Kim SH. Comparison of three different lactic acid bacteria-fermented proteins on RAW 264.7 osteoclast and MC3T3-E1 osteoblast differentiation. Sci Rep 2023; 13:21575. [PMID: 38062113 PMCID: PMC10703878 DOI: 10.1038/s41598-023-49024-1] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 12/03/2023] [Indexed: 12/18/2023] Open
Abstract
Osteoporosis is a state of bone weakening caused by an imbalance in osteoblast and osteoclast activity. In this study, the anti-osteoporotic effects of three proteins fermented by lactic acid bacteria (LAB) were assessed. Commercial proteins sodium caseinate (SC), whey protein isolate (WPI), and soy protein isolate (SPI) were fermented by LAB strains for 48 h. The fermented products (F-SC, F-WPI, and F-SPI, respectively) were used in an in vitro osteoclast and osteoblast-like cell model to assess their effects on bone health. Despite no difference in the results of TRAP staining of RANKL-induced osteoclastogenesis, F-WPI and F-SPI were effective in normalizing the altered gene expression of osteoclastogenesis markers such as TRAP, Nfatc1, RANK, and ATP6v0d. F-SPI was also effective in modulating osteoblasts by enhancing the expression of the osteoblastogenesis markers T1Col, Col2a, and OSX to levels higher than those in the SPI group, indicating that protein characteristics could be enhanced through bacterial fermentation. Moreover, these boosted effects of F-SPI may be involved with isoflavone-related metabolism during LAB-fermentation of SPI. These results demonstrate the potential of LAB-fermented proteins as dietary supplements to prevent bone loss. However, further understanding of its effects on balancing osteoblasts and osteoclasts and the underlying mechanisms is needed.
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Affiliation(s)
- Jae-Young Kim
- College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, Republic of Korea
- Institute of Life Science and Natural Resources, Korea University, Seoul, 02841, Republic of Korea
| | - Hyun Ji Song
- College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, Republic of Korea
| | - Sejin Cheon
- College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, Republic of Korea
| | - Seokyoung An
- College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, Republic of Korea
| | - Chul Sang Lee
- College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, Republic of Korea
- Institute of Life Science and Natural Resources, Korea University, Seoul, 02841, Republic of Korea
| | - Sae Hun Kim
- College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, Republic of Korea.
- Institute of Life Science and Natural Resources, Korea University, Seoul, 02841, Republic of Korea.
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Park JH, Jo JY, Park H, Kim IH. Dermoscopic and Histopathologic Analysis of the Correlation between the Pigmentation of Basal Cell Carcinoma and Tumor Aggressiveness. Ann Dermatol 2023; 35:451-460. [PMID: 38086359 PMCID: PMC10733081 DOI: 10.5021/ad.23.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 07/23/2023] [Accepted: 07/25/2023] [Indexed: 12/22/2023] Open
Abstract
BACKGROUND Basal cell carcinoma (BCC) is the most common type of skin cancer. In patients with darker skin, most BCCs are pigmented. Studies suggest that increased pigmentation in BCC may be inversely associated with tumor aggressiveness. OBJECTIVE This study analyzed the dermoscopic features and histopathologic patterns of BCCs to evaluate the correlation between BCC pigmentation and tumor aggressiveness. METHODS A total of 76 BCC lesions were included in this retrospective study. The Mohs micrographic surgery (MMS) stage and tumor depth were measured as indices of tumor aggressiveness. The Fontana-Masson stain was performed for the identification of melanin, and immunohistochemical analysis was performed using Melan-A and HMB-45 to identify melanocytes. RESULTS In MMS stage 1, the dermoscopic pigmentation value was 34.48%±14.22% (mean±standard deviation). In MMS stages 2 and 3, dermoscopic pigmentations were 13.72%±7.54% and 15.50%±17.52%, respectively. In the logistic regression model, higher dermoscopic pigmentation (95% confidence interval [CI], 0.68~0.99), melanin (95% CI, 0.63~0.89), and melanocyte-stained areas (95% CI, 0.70~0.92) were associated with a lower possibility of BCC tumor infiltration over the middle and lower layers. CONCLUSION We found an inverse correlation between the pigmentation and aggressiveness of BCCs. Clinicians can predict the subclinical infiltration depth of BCC on the basis of the pigmentation observed on dermoscopy. Pigmentation can be considered a favorable prognostic factor for BCC.
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Affiliation(s)
- Jong Heon Park
- Department of Dermatology, Korea University Ansan Hospital, Ansan, Korea
| | - Ju Young Jo
- Department of Dermatology, Korea University Ansan Hospital, Ansan, Korea
| | - Hyunwoo Park
- Department of Dermatology, Korea University Ansan Hospital, Ansan, Korea
| | - Il-Hwan Kim
- Department of Dermatology, Korea University Ansan Hospital, Ansan, Korea.
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Kim KM, Yoo GD, Heo W, Oh HT, Park J, Shin S, Do Y, Jeong MG, Hwang ES, Hong J. TAZ stimulates exercise-induced muscle satellite cell activation via Pard3-p38 MAPK-TAZ signalling axis. J Cachexia Sarcopenia Muscle 2023; 14:2733-2746. [PMID: 37923703 PMCID: PMC10751443 DOI: 10.1002/jcsm.13348] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 07/11/2023] [Accepted: 09/11/2023] [Indexed: 11/07/2023] Open
Abstract
BACKGROUND Exercise stimulates the activation of muscle satellite cells, which facilitate the maintenance of stem cells and their myogenic conversion during muscle regeneration. However, the underlying mechanism is not yet fully understood. This study shows that the transcriptional co-activator with PDZ-binding motif (TAZ) stimulates muscle regeneration via satellite cell activation. METHODS Tazf/f mice were crossed with the paired box gene 7 (Pax7)creERT2 mice to generate muscle satellite cell-specific TAZ knockout (sKO) mice. Mice were trained in an endurance exercise programme for 4 weeks. Regenerated muscles were harvested and analysed by haematoxylin and eosin staining. Muscle tissues were also analysed by immunofluorescence staining, immunoblot analysis and quantitative reverse transcription PCR (qRT-PCR). For the in vitro study, muscle satellite cells from wild-type and sKO mice were isolated and analysed. Mitochondrial DNA was quantified by qRT-PCR using primers that amplify the cyclooxygenase-2 region of mitochondrial DNA. Quiescent and activated satellite cells were stained with MitoTracker Red CMXRos to analyse mitochondria. To study the p38 mitogen-activated protein kinase (MAPK)-TAZ signalling axis, p38 MAPK was activated by introducing the MAPK kinase 6 plasmid into satellite cells and also inhibited by treatment with the p38 MAPK inhibitor, SB203580. RESULTS TAZ interacts with Pax7 to induce Myf5 expression and stimulates mammalian target of rapamycin signalling for satellite cell activation. In sKO mice, TAZ depletion reduces muscle satellite cell number by 38% (0.29 ± 0.073 vs. 0.18 ± 0.034, P = 0.0082) and muscle regeneration. After muscle injury, TAZ levels (2.59-fold, P < 0.0001) increase in committed cells compared to self-renewing cells during asymmetric satellite cell division. Mechanistically, the polarity protein Pard3 induces TAZ (2.01-fold, P = 0.008) through p38 MAPK, demonstrating that the p38 MAPK-TAZ axis is important for muscle regeneration. Physiologically, endurance exercise training induces muscle satellite cell activation and increases muscle fibre diameter (1.33-fold, 43.21 ± 23.59 vs. 57.68 ± 23.26 μm, P = 0.0004) with increased TAZ levels (1.76-fold, P = 0.017). However, sKO mice had a 39% reduction in muscle satellite cell number (0.20 ± 0.03 vs. 0.12 ± 0.02, P = 0.0013) and 24% reduction in muscle fibre diameter compared to wild-type mice (61.07 ± 23.33 vs. 46.60 ± 24.29 μm, P = 0.0006). CONCLUSIONS Our results demonstrate a novel mechanism of TAZ-induced satellite cell activation after muscle injury and exercise, suggesting that activation of TAZ in satellite cells may ameliorate the muscle ageing phenotype and may be an important target protein for the drug development in sarcopenia.
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Affiliation(s)
| | - Gi Don Yoo
- Division of Life SciencesKorea UniversitySeoulKorea
| | - Woong Heo
- Division of Life SciencesKorea UniversitySeoulKorea
| | - Ho Taek Oh
- Division of Life SciencesKorea UniversitySeoulKorea
| | - Jeekeon Park
- Division of Life SciencesKorea UniversitySeoulKorea
| | - Somin Shin
- Division of Life SciencesKorea UniversitySeoulKorea
| | - Youjin Do
- Division of Life SciencesKorea UniversitySeoulKorea
| | - Mi Gyeong Jeong
- College of Pharmacy and Graduate School of Pharmaceutical SciencesEwha Womans UniversitySeoulKorea
| | - Eun Sook Hwang
- College of Pharmacy and Graduate School of Pharmaceutical SciencesEwha Womans UniversitySeoulKorea
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Ahn SM, Song MS, Togloom A, Oh J. Quantification of choroidal hyperreflective layer: A swept-source optical coherence tomography study. PLoS One 2023; 18:e0294476. [PMID: 38019820 PMCID: PMC10686441 DOI: 10.1371/journal.pone.0294476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 11/02/2023] [Indexed: 12/01/2023] Open
Abstract
PURPOSE To investigate variation in reflectivity of choroidal layers in normal eyes. METHODS From the swept-source optical coherence tomography database, we retrospectively included eyes with a normal fundus. Choroidal reflectivity was measured on the horizontal and vertical B-scan optical coherence tomography images. The optical barrier of the choroid was defined as the first hill in the middle of the reflectance graph from the retinal pigment epithelium-Bruch's membrane complex to the chorioscleral junction. RESULTS The optical barrier of the choroid was identified in 91 eyes of 91 individuals. The amplitude of peak reflectivity of the optical barrier of the choroid at macular center (142.85 ± 15.04) was greater than those in superior (136.12 ± 14.08) or inferior macula (135.30 ± 16.13) (P = 0.028, P = 0.008, respectively). Latency between the peak of the retinal pigment epithelium-Bruch's membrane complex and the optical barrier of the choroid at macular center (48.11 ± 13.78 μm) was shorter than those in nasal macula (55.58 ± 19.21 μm) (P = 0.021). The amplitude of the peak reflectivity of the optical barrier of the choroid in the center negatively correlated with the latency between the retinal pigment epithelium-Bruch's membrane complex and the optical barrier of the choroid (P < 0.001). CONCLUSION An optical barrier exists in the inner choroid of the normal eye. Its depth depends on the location within the macula. Further studies are mandatory to evaluate variations in the barrier in the eyes with chorioretinal disease.
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Affiliation(s)
- So Min Ahn
- Department of Ophthalmology, Korea University College of Medicine, Seoul, South Korea
| | - Myung-Sun Song
- Department of Ophthalmology, Korea University College of Medicine, Seoul, South Korea
| | - Ariunaa Togloom
- Department of Ophthalmology, Korea University College of Medicine, Seoul, South Korea
| | - Jaeryung Oh
- Department of Ophthalmology, Korea University College of Medicine, Seoul, South Korea
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An S, Lee JB, Lee S, Oh Y, Park JY, Hur JW. True Continuous Segment of Ossification of Posterior Longitudinal Ligament is Protective Against Postoperative Early Kyphosis Progression After Laminoplasty. Neurosurgery 2023:00006123-990000000-00973. [PMID: 37991350 DOI: 10.1227/neu.0000000000002773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Accepted: 10/09/2023] [Indexed: 11/23/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Ossification of the posterior longitudinal ligament (OPLL) is a potentially catastrophic disease. Laminoplasty (LP) is a common surgical intervention, but postoperative kyphosis progression is a major complication, for which various risk factors have been identified and used in surgical decision-making. Our focus is on the ability of OPLL with specific morphological traits, designated as the true continuous segment (TCS), to stabilize alignment and prevent postoperative kyphosis after LP. METHODS This retrospective case-control study included patients who underwent cervical LP for OPLL treatment with a minimum 1-year follow-up. Demographic, operative, and radiographic parameters were analyzed. TCS is defined as a continuous segment of OPLL that spans the disk space more than half of the adjacent vertebral body height without crack, or OPLL segment attached to both upper and lower adjacent vertebral bodies by bridging, or obvious interbody autofusion, and is identified from preoperative computed tomography. A subgroup analysis for preoperatively lordotic patients, divided into 2 groups based on cervical alignment at the final follow-up, was conducted to identify risk factors for kyphosis progression. Difference analysis, linear regression analysis for loss of lordosis (LoL), and logistic regression analysis for kyphosis progression were used. RESULTS A total of 84 patients were identified. Among them, 78 patients with preoperatively lordotic alignment were divided into 2 groups: those who maintained lordotic alignment (n = 60) and those who progressed to kyphosis (n = 18). Regression analyses revealed a significant protective effect of TCS count against LoL and postoperative kyphosis, with a TCS count of 3 or more conclusively preventing kyphosis (sensitivity 1.000, specificity 0.283, area under the curve 0.629). CONCLUSION For patients with OPLL, TCS was shown to protect against the LoL after LP. Therefore, TCS should be identified and considered when planning surgical treatment for OPLL.
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Affiliation(s)
- Sungjae An
- Department of Neurosurgery, College of Medicine, Korea University, Seoul, Republic of Korea
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Yoo AY, Joo MK, Park JJ, Lee BJ, Kim SH, Kim WS, Chun HJ. Recurrent Non-Variceal Upper Gastrointestinal Bleeding among Patients Receiving Dual Antiplatelet Therapy. Diagnostics (Basel) 2023; 13:3444. [PMID: 37998579 PMCID: PMC10670490 DOI: 10.3390/diagnostics13223444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 10/29/2023] [Accepted: 11/13/2023] [Indexed: 11/25/2023] Open
Abstract
BACKGROUND Patients undergoing dual antiplatelet therapy (DAPT) may experience recurrent gastrointestinal bleeding (GIB). We investigated the clinical characteristics and risk factors for recurrent non-variceal upper gastrointestinal bleeding (NVUGIB) in patients who had experienced NVUGIB while receiving DAPT. METHODS We enrolled patients diagnosed with NVUGIB while receiving DAPT between 2006 and 2020. Definite bleeding was confirmed by esophagogastroduodenoscopy in all NVUGIB patients. RESULTS A total of 124 patients were diagnosed with NVUGIB while receiving DAPT. They were predominantly male (n = 103, 83.1%), bleeding mostly from the stomach (n = 94, 75.8%) and had peptic ulcers (n = 72, 58.1%). After the successful hemostasis of NVUGIB, 36 patients (29.0%) experienced at least one episode of recurrent upper GIB, 19 patients (15.3%) died, and 7 (5.6%) patients had a bleeding-related death. Multivariate analysis showed that age was a significant factor for re-bleeding (odds ratio [OR], 1.050; 95% confidence interval [CI]: 1.001-1.102; p-value: 0.047), all-cause mortality (OR, 1.096; 95% CI: 1.020-1.178, p = 0.013), and re-bleeding-related mortality (OR, 1.187; 95% CI: 1.032-1.364, p-value: 0.016). In Kaplan-Meier analysis, the cumulative probabilities of re-bleeding, death, and bleeding-related death were significantly higher in patients aged 70 and older (p = 0.008, <0.001, and 0.009, respectively). CONCLUSIONS Clinicians should be cautious about re-bleeding and mortality in elderly patients who experience NVUGIB while receiving DAPT.
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Affiliation(s)
- Ah Young Yoo
- Division of Gastroenterology, Department of Internal Medicine, Korea University Guro Hospital, Korea University College of Medicine, 148, Gurodong-ro, Guro-gu, Seoul 08308, Republic of Korea; (A.Y.Y.); (J.-J.P.); (B.J.L.); (S.H.K.); (W.S.K.)
| | - Moon Kyung Joo
- Division of Gastroenterology, Department of Internal Medicine, Korea University Guro Hospital, Korea University College of Medicine, 148, Gurodong-ro, Guro-gu, Seoul 08308, Republic of Korea; (A.Y.Y.); (J.-J.P.); (B.J.L.); (S.H.K.); (W.S.K.)
| | - Jong-Jae Park
- Division of Gastroenterology, Department of Internal Medicine, Korea University Guro Hospital, Korea University College of Medicine, 148, Gurodong-ro, Guro-gu, Seoul 08308, Republic of Korea; (A.Y.Y.); (J.-J.P.); (B.J.L.); (S.H.K.); (W.S.K.)
| | - Beom Jae Lee
- Division of Gastroenterology, Department of Internal Medicine, Korea University Guro Hospital, Korea University College of Medicine, 148, Gurodong-ro, Guro-gu, Seoul 08308, Republic of Korea; (A.Y.Y.); (J.-J.P.); (B.J.L.); (S.H.K.); (W.S.K.)
| | - Seung Han Kim
- Division of Gastroenterology, Department of Internal Medicine, Korea University Guro Hospital, Korea University College of Medicine, 148, Gurodong-ro, Guro-gu, Seoul 08308, Republic of Korea; (A.Y.Y.); (J.-J.P.); (B.J.L.); (S.H.K.); (W.S.K.)
| | - Won Shik Kim
- Division of Gastroenterology, Department of Internal Medicine, Korea University Guro Hospital, Korea University College of Medicine, 148, Gurodong-ro, Guro-gu, Seoul 08308, Republic of Korea; (A.Y.Y.); (J.-J.P.); (B.J.L.); (S.H.K.); (W.S.K.)
| | - Hoon Jai Chun
- Division of Gastroenterology, Department of Internal Medicine, Korea University Anam Hospital, Korea University College of Medicine, 73, Inchon-ro, Seongbuk-gu, Seoul 02841, Republic of Korea;
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Lee T, Kang D, Kim M, Choi S, Cheong DY, Roh S, Oh SH, Park I, Lee G. Hydrophobic Barriers for Directing Physarum polycephalum Propulsion and Navigation. ACS Omega 2023; 8:41649-41654. [PMID: 37970039 PMCID: PMC10634242 DOI: 10.1021/acsomega.3c05560] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 08/10/2023] [Revised: 10/06/2023] [Accepted: 10/12/2023] [Indexed: 11/17/2023]
Abstract
Physarum polycephalum (P. polycephalum) is a unicellular protist with unique properties, such as learning and remembering in its cultured environment without a brain or central nervous system. The organism has been extensively used in morphology, taxis, and positive feedback dynamics studies. However, the lack of standardization of materials and substrate designs used in P. polycephalum studies has significantly limited conducting such studies, increasing the cost and time. In this study, we introduce a method to control the direction and migration of P. polycephalum by drawing hydrophobic lines and patterns. Our study succeeded in controlling the movement of P. polycephalum by setting a variety of hydrophobic designs such as complete barrier, single-slit barrier, taper barrier, dumbbell barrier, and one-side-opened rectangular barrier, suggesting the effectiveness of the hydrophobic barrier in regulating the propulsion and navigation of the organisms. Moreover, we demonstrated that utilizing such geometric constraints can reduce the experimental time required for toxicity testing based on P. polycephalum by more than 300%. Our techniques open new possibilities for studying the biophysical properties and behaviors of P. polycephalum, while also facilitating toxicity testing.
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Affiliation(s)
- Taeha Lee
- Department
of Biotechnology and Bioinformatics, Korea
University, Sejong 30019, South Korea
- Interdisciplinary
Graduate Program for Artificial Intelligence Smart Convergence Technology, Korea University, Sejong 30019, South Korea
| | - Dain Kang
- Department
of Biotechnology and Bioinformatics, Korea
University, Sejong 30019, South Korea
| | - Minsu Kim
- Department
of Biotechnology and Bioinformatics, Korea
University, Sejong 30019, South Korea
| | - Sukyung Choi
- Department
of Biotechnology and Bioinformatics, Korea
University, Sejong 30019, South Korea
| | - Da Yeon Cheong
- Department
of Biotechnology and Bioinformatics, Korea
University, Sejong 30019, South Korea
- Interdisciplinary
Graduate Program for Artificial Intelligence Smart Convergence Technology, Korea University, Sejong 30019, South Korea
| | - Seokbeom Roh
- Department
of Biotechnology and Bioinformatics, Korea
University, Sejong 30019, South Korea
- Interdisciplinary
Graduate Program for Artificial Intelligence Smart Convergence Technology, Korea University, Sejong 30019, South Korea
| | - Seung Hyeon Oh
- Department
of Biotechnology and Bioinformatics, Korea
University, Sejong 30019, South Korea
| | - Insu Park
- Department
of Biomedical Engineering, Konyang University, Daejeon 35365, South Korea
| | - Gyudo Lee
- Department
of Biotechnology and Bioinformatics, Korea
University, Sejong 30019, South Korea
- Interdisciplinary
Graduate Program for Artificial Intelligence Smart Convergence Technology, Korea University, Sejong 30019, South Korea
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An M, Lim YH. Surface-exposed chaperonin 60 derived from Propionibacterium freudenreichii MJ2 inhibits adipogenesis by decreasing the expression of C/EBPα/PPARγ. Sci Rep 2023; 13:19251. [PMID: 37935755 PMCID: PMC10630399 DOI: 10.1038/s41598-023-46436-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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 11/01/2023] [Indexed: 11/09/2023] Open
Abstract
Recent studies have shown that the health benefits of probiotics are not limited to those offered by living bacteria. It was reported that both live and killed cells of Propionibacterium freudenreichii MJ2 (MJ2) isolated from raw milk showed antiobesity activity in 3T3-L1 cells and high-fat diet-induced obese mice. This study was aimed at identifying the active component(s) responsible for the antiadipogenic activity of MJ2. Cell wall, surface protein, and cytoplasmic fractions of MJ2 were investigated for their inhibitory effects on adipogenesis in 3T3-L1 cells. Adipocytes treated with the surface protein fraction showed significantly lower lipid accumulation. Using the MASCOT algorithm following LC-MS/MS analysis, 131 surface proteins were identified and they were principally classified into three categories (network clusters related to ribosomes, carbon metabolism, and chaperones). Among them, chaperonin 60 (Cpn60) was selected as a potential candidate protein. Cpn60 inhibited lipid accumulation and adipogenesis during the early period of differentiation (days 0-2) and decreased expression of genes related to adipogenesis (Pparg and Cebpa) and lipogenesis (Fas and Scd1). The expression of Gata2/3, which suppresses adipogenesis, significantly increased in Cpn60-treated cells. Moreover, the nuclear translocation of C/EBPβ was inhibited by Cpn60 treatment. In conclusion, Cpn60, a surface protein in MJ2, shows antiadipogenic activity by reducing the expression of C/EBPβ through the upregulation of Gata2/3 expression followed by downregulation of Pparg and Cebpa expression.
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Affiliation(s)
- Mirae An
- Department of Healthcare Sciences, Graduate School, Korea University, Seoul, 02841, Republic of Korea
| | - Young-Hee Lim
- Department of Healthcare Sciences, Graduate School, Korea University, Seoul, 02841, Republic of Korea.
- School of Biosystems and Biomedical Sciences, Korea University, Seoul, 02841, Republic of Korea.
- Department of Laboratory Medicine, Korea University Guro Hospital, Seoul, 08308, Republic of Korea.
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Bong JW, Kang S, Park P. Multicenter study of prognostic factors in paraaortic lymph node dissection for metastatic colorectal cancer. Ann Surg Treat Res 2023; 105:271-280. [PMID: 38023439 PMCID: PMC10648615 DOI: 10.4174/astr.2023.105.5.271] [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: 08/28/2023] [Revised: 09/06/2023] [Accepted: 09/06/2023] [Indexed: 12/01/2023] Open
Abstract
Purpose The role of paraaortic lymph node dissection (PALND) in colorectal cancer (CRC) has been less evaluated than surgical treatments for other distant metastases. We evaluated surgical outcomes after PALND and identified prognostic factors. Methods The medical records of patients who underwent PALND for paraaortic lymph node metastasis (PALNM) were reviewed retrospectively. All patients were categorized into the M1a group (isolated PALNM, n = 27), and the M1bc group (distant metastases other than PALNM, n = 26). Three severity factors (PALNM-SF: number of harvested paraaortic lymph nodes [hLN], ≥14; number of metastatic paraaortic lymph nodes [mLN], ≥5; and lymph nodes ratio [mLN/hLN], ≥0.5) were defined to determine their effects on survival. Results The 5-year overall survival (OS) of the M1a and M1bc groups were 61.1% and 6.4%, respectively (P = 0.0013). The 5-year disease-free survival (DFS) of the M1a group was 47.4%, and the 3-year DFS of the M1bc group was 9.1% (P < 0.001). Patients with 2 or more PALNM-SFs showed worse OS than those with 1 PALNM-SF (P = 0.017). In multivariate analysis, M1bc (non-isolated PALNM) was the only significant factor for survival. In the M1a group, patients with 2 or more PALNM-SFs showed significantly worse survival than those with a single PALNM-SF. In multivariate analysis, 2 or more PALNM-SF was a significant factor for survival. Conclusion PALND for CRC provided favorable outcomes in the survival of an isolated PALNM, although this was uncertain for non-isolated PALNMs. The PALNM-SFs helped assess the prognosis after PALND.
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Affiliation(s)
- Jun Woo Bong
- Department of Surgery, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - Sanghee Kang
- Department of Surgery, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - Pyoungjae Park
- Department of Surgery, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
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Kim S, Seok H, Kim BK, Hwang J, Park DW, Shin JS, Kim JH. COVID-19 versus Other Disease Etiologies as the Cause of ARDS in Patients Necessitating Venovenous Extracorporeal Membrane Oxygenation-A Comparison of Patients' Data during the Three Years of the COVID-19 Pandemic. J Clin Med 2023; 12:6752. [PMID: 37959217 PMCID: PMC10647761 DOI: 10.3390/jcm12216752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 10/22/2023] [Accepted: 10/24/2023] [Indexed: 11/15/2023] Open
Abstract
Considering the characteristics of coronavirus disease 2019 (COVID-19) acute respiratory distress syndrome (ARDS), we compared the clinical course and outcomes of patients with ARDS who received venovenous extracorporeal membrane oxygenation (VV ECMO) based on the etiology of ARDS. This retrospective single-center study included adult patients with severe ARDS necessitating VV ECMO during the COVID-19 pandemic. Among 45 patients who received VV ECMO, 21 presented with COVID-19. COVID-19 patients exhibited lower sequential organ failure assessment scores (9 [8-12.75] versus 8 [4-11.5], p = 0.033) but longer duration of VV ECMO support (10.5 days [3.25-29.25] versus 28 days [10.5-70.5] p = 0.018), which was accompanied by an weaning off rate from VV ECMO in 12/24 (50%) versus 12/21 (57.1%) and 28-day mortality in 9/24 [37.5%] versus 2/21 [9.5%] in non-COVID-19 and COVID-19 patients (p = 0.767, p = 0.040), respectively. Finally, in the adjusted Cox regression model for hospital mortality, the hazard ratio of COVID-19 was not significant (hazard ratio 0.350, 95% confidence interval 0.110-1.115, p = 0.076). Although the VV ECMO period was longer, COVID-19 did not significantly impact ECMO weaning off and mortality rates. Nonetheless, judicious patient selections based on risk factors should be followed.
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Affiliation(s)
- Sua Kim
- Department of Critical Care Medicine, Korea University College of Medicine, Korea University Ansan Hospital, Ansan 15355, Republic of Korea;
| | - Hyeri Seok
- Division of Infectious Disease, Department of Internal Medicine, Korea University College of Medicine, Korea University Ansan Hospital, Ansan 15355, Republic of Korea; (H.S.); (D.W.P.)
| | - Beong Ki Kim
- Division of Pulmonology, Department of Internal Medicine, Korea University College of Medicine, Korea University Ansan Hospital, Ansan 15355, Republic of Korea;
| | - Jinwook Hwang
- Department of Thoracic and Cardiovascular Surgery, Korea University College of Medicine, Korea University Ansan Hospital, Ansan 15355, Republic of Korea; (J.H.); (J.S.S.)
| | - Dae Won Park
- Division of Infectious Disease, Department of Internal Medicine, Korea University College of Medicine, Korea University Ansan Hospital, Ansan 15355, Republic of Korea; (H.S.); (D.W.P.)
| | - Jae Seung Shin
- Department of Thoracic and Cardiovascular Surgery, Korea University College of Medicine, Korea University Ansan Hospital, Ansan 15355, Republic of Korea; (J.H.); (J.S.S.)
| | - Je Hyeong Kim
- Department of Critical Care Medicine, Korea University College of Medicine, Korea University Ansan Hospital, Ansan 15355, Republic of Korea;
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Kim D, Park JW, Cho SB, Rhyu IJ. Anatomical Structures to Be Concerned With During Peripherally Inserted Central Catheter Procedures. J Korean Med Sci 2023; 38:e329. [PMID: 37873629 PMCID: PMC10593598 DOI: 10.3346/jkms.2023.38.e329] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 06/14/2023] [Indexed: 10/25/2023] Open
Abstract
BACKGROUND The central line has been frequently used for drug and nutrition supply and regular blood sampling of patients with chronic diseases. However, this procedure is performed in a highly sensitive area and has several potential complications. Therefore, peripherally inserted central catheters (PICC), which have various advantages, are being extensively used. Although the number of PICC procedures is increasing, the anatomy for safe procedures has not yet been properly established. Therefore, we studied basic anatomical information for safe procedures. METHODS We used 20 fixed cadavers (40 arms) donated to the Korea University College of Medicine. The mean age was 76.75 years (range, 48-94 years). After dissection of each arm, the distribution pattern of the basilic vein and close structures was recorded, and some important parameters based on bony landmarks were measured. In addition, the number of vein branches (axillary region) and basilic vein diameter were also checked. RESULTS The mean length from the insertion site to the right atrium was 38.39 ± 2.63 cm (left) and 34.66 ± 3.60 cm (right), and the basilic vein diameter was 4.93 ± 1.18 mm (left) and 4.08 ± 1.49 mm (right). The data showed significant differences between the left and right arms (P < 0.05). The mean distance from the basilic vein to brachial artery was 8.29 ± 2.78 mm in men and 7.81 ± 2.78 mm in women, while the distance to the ulnar nerve was 5.41 ± 1.67 mm in men and 5.52 ± 2.06 mm in women. CONCLUSION According to these results, the right arm has a shorter distance from the insertion site to the right atrium, and the left arm has a wider vein diameter, which is advantageous for the procedure. In addition, the ulnar nerve and brachial artery were located close to or behind the insertion site. Therefore, special attention is required during the procedure to avoid damaging these important structures.
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Affiliation(s)
- Dasom Kim
- Department of Anatomy, Korea University College of Medicine, Seoul, Korea
| | - Jin Woo Park
- Department of Anatomy, Korea University College of Medicine, Seoul, Korea
| | - Sung Bum Cho
- Department of Diagnostic Radiology, Korea University College of Medicine, Seoul, Korea
| | - Im Joo Rhyu
- Department of Anatomy, Korea University College of Medicine, Seoul, Korea
- Practical Anatomy Research Institute, Korea University College of Medicine, Seoul, Korea.
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Kang SH, Yoo H, Cheon BK, Kim JP, Jang H, Kim HJ, Kang M, Oh K, Koh SB, Na DL, Chang Y, Seo SW. Sex-specific relationship between non-alcoholic fatty liver disease and amyloid-β in cognitively unimpaired individuals. Front Aging Neurosci 2023; 15:1277392. [PMID: 37901792 PMCID: PMC10603302 DOI: 10.3389/fnagi.2023.1277392] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 09/25/2023] [Indexed: 10/31/2023] Open
Abstract
Background Non-alcoholic fatty liver disease (NAFLD) is known to be associated with a high risk of clinically diagnosed Alzheimer's disease (AD). Additionally, the prevalence of NAFLD and AD is higher in elderly females than in males. However, a sex-specific association between NAFLD and amyloid-beta (Aβ) deposition remains unclear. Therefore, we investigated the sex-specific relationship between NAFLD and Aβ deposition in a large-sized cohort of cognitively unimpaired (CU) individuals. Methods We enrolled 673 (410 [60.9%] females and 263 [39.1%] males) CU individuals aged ≥45 years who underwent Aβ positron emission tomography (PET). The presence of NAFLD, assessed using the hepatic steatosis index, and the severity of NAFLD, assessed using the Fibrosis-4 index, were considered predictors. Aβ deposition on PET was considered as an outcome. Results Females had a higher frequency of NAFLD than males (48 and 23.2%, p < 0.001). Among females, the presence of NAFLD (β = 0.216, p < 0.001) was predictive of increased Aβ deposition, whereas among males, the presence of NAFLD (β = 0.191, p = 0.064) was not associated with Aβ deposition. Among females, the presence of NAFLD with low (β = 0.254, p = 0.039), intermediate (β = 0.201, p = 0.006), and high fibrosis (β = 0.257, p = 0.027) was predictive of increased Aβ deposition. Aβ deposition also increased as the severity of NAFLD increased in females (p for trend = 0.001). Conclusion We highlight the marked influence of NAFLD and its severity on the risk of Aβ deposition in relation to sex. Furthermore, our findings suggest that sex-specific strategies regarding the management of NAFLD are necessary for the prevention of Aβ deposition.
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Affiliation(s)
- Sung Hoon Kang
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
- Department of Neurology, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - Heejin Yoo
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
- Alzheimer’s Disease Convergence Research Center, Samsung Medical Center, Seoul, Republic of Korea
| | - Bo Kyoung Cheon
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
- Alzheimer’s Disease Convergence Research Center, Samsung Medical Center, Seoul, Republic of Korea
| | - Jun Pyo Kim
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Hyemin Jang
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Hee Jin Kim
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Mira Kang
- Department of Digital Health, SAIHST, Sungkyunkwan University, Seoul, Republic of Korea
- Center for Health Promotion, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Kyungmi Oh
- Department of Neurology, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - Seong-Beom Koh
- Department of Neurology, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - Duk L. Na
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Yoosoo Chang
- Center for Cohort Studies, Total Healthcare Center, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Sang Won Seo
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
- Alzheimer’s Disease Convergence Research Center, Samsung Medical Center, Seoul, Republic of Korea
- Department of Digital Health, SAIHST, Sungkyunkwan University, Seoul, Republic of Korea
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, Republic of Korea
- Department of Intelligent Precision Healthcare Convergence, Sungkyunkwan University, Suwon, Republic of Korea
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Lee KC, Kim YC, Kim JK, Lee H, Lee JH. Regulation of Flowering Time and Other Developmental Plasticities by 3' Splicing Factor-Mediated Alternative Splicing in Arabidopsis thaliana. Plants (Basel) 2023; 12:3508. [PMID: 37836248 PMCID: PMC10575287 DOI: 10.3390/plants12193508] [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] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 09/27/2023] [Accepted: 10/05/2023] [Indexed: 10/15/2023]
Abstract
Plants, as sessile organisms, show a high degree of plasticity in their growth and development and have various strategies to cope with these alterations under continuously changing environments and unfavorable stress conditions. In particular, the floral transition from the vegetative and reproductive phases in the shoot apical meristem (SAM) is one of the most important developmental changes in plants. In addition, meristem regions, such as the SAM and root apical meristem (RAM), which continually generate new lateral organs throughout the plant life cycle, are important sites for developmental plasticity. Recent findings have shown that the prevailing type of alternative splicing (AS) in plants is intron retention (IR) unlike in animals; thus, AS is an important regulatory mechanism conferring plasticity for plant growth and development under various environmental conditions. Although eukaryotes exhibit some similarities in the composition and dynamics of their splicing machinery, plants have differences in the 3' splicing characteristics governing AS. Here, we summarize recent findings on the roles of 3' splicing factors and their interacting partners in regulating the flowering time and other developmental plasticities in Arabidopsis thaliana.
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Affiliation(s)
- Keh Chien Lee
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, 90183 Umeå, Sweden;
| | - Young-Cheon Kim
- Division of Life Sciences, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju 54896, Jeollabuk-do, Republic of Korea;
| | - Jeong-Kook Kim
- Division of Life Sciences, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea;
| | - Horim Lee
- Department of Biotechnology, Duksung Women’s University, Seoul 03169, Republic of Korea
| | - Jeong Hwan Lee
- Division of Life Sciences, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju 54896, Jeollabuk-do, Republic of Korea;
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Lee JW, Choi J, Kim EH, Choi J, Kim SH, Yang Y. Design of siRNA Bioconjugates for Efficient Control of Cancer-Associated Membrane Receptors. ACS Omega 2023; 8:36435-36448. [PMID: 37810687 PMCID: PMC10552107 DOI: 10.1021/acsomega.3c05395] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 07/25/2023] [Accepted: 09/06/2023] [Indexed: 10/10/2023]
Abstract
Research on siRNA delivery has seen tremendous growth over the past few decades. As one of the major delivery strategies, siRNA bioconjugates offer the potential to enhance and extend the pharmacological properties of siRNAs while minimizing toxicity. In this paper, we suggest the development of a siRNA conjugate platform with peptides and proteins that are ligands of target receptors for cancer treatment. The siRNA bioconjugates target and block the receptor membrane proteins, enter the cells through receptor-mediated endocytosis, and inhibit the expression of that same target membrane receptor, thereby doubly controlling the function of the membrane proteins. The three kinds of bioconjugates targeting CD47, PD-L1, and EGFR were synthesized via two different copper-free click chemistry reactions. Results showed the cellular uptake of each conjugate, reduction of target gene expression, and efficient functional control of receptor proteins. This platform provides an effective approach for regulating membrane proteins in various diseases beyond cancer.
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Affiliation(s)
- Jong Won Lee
- KU-KIST
Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
- Medicinal
Materials Research Center, Biomedical Research Division, Korea Institute of Science and Technology (KIST), 5, Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Jiwoong Choi
- Medicinal
Materials Research Center, Biomedical Research Division, Korea Institute of Science and Technology (KIST), 5, Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Eun Hye Kim
- Medicinal
Materials Research Center, Biomedical Research Division, Korea Institute of Science and Technology (KIST), 5, Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
- Department
of Life Sciences, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Jiwon Choi
- Medicinal
Materials Research Center, Biomedical Research Division, Korea Institute of Science and Technology (KIST), 5, Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
- Department
of Bioengineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Sun Hwa Kim
- KU-KIST
Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
- Medicinal
Materials Research Center, Biomedical Research Division, Korea Institute of Science and Technology (KIST), 5, Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Yoosoo Yang
- Medicinal
Materials Research Center, Biomedical Research Division, Korea Institute of Science and Technology (KIST), 5, Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
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Jeong JH, Oh SK, Kim YG, Choi YY, Lee HS, Shim J, Park YM, Kim JH, Oh YS, Kim NH, Pak HN, On YK, Park HW, Hwang GS, Kim DK, Park YA, Park HS, Cho Y, Oh S, Choi JI, Kim YH. Clinical and Genetic Features of Korean Inherited Arrhythmia Probands. Korean Circ J 2023; 53:693-707. [PMID: 37653714 PMCID: PMC10625850 DOI: 10.4070/kcj.2023.0083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 05/30/2023] [Accepted: 06/13/2023] [Indexed: 09/02/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Inherited arrhythmia (IA) is a more common cause of sudden cardiac death in Asian population, but little is known about the genetic background of Asian IA probands. We aimed to investigate the clinical characteristics and analyze the genetic underpinnings of IA in a Korean cohort. METHODS This study was conducted in a multicenter cohort of the Korean IA Registry from 2014 to 2017. Genetic testing was performed using a next-generation sequencing panel including 174 causative genes of cardiovascular disease. RESULTS Among the 265 IA probands, idiopathic ventricular fibrillation (IVF) and Brugada Syndrome (BrS) was the most prevalent diseases (96 and 95 cases respectively), followed by long QT syndrome (LQTS, n=54). Two-hundred-sixteen probands underwent genetic testing, and 69 probands (31.9%) were detected with genetic variant, with yield of pathogenic or likely pathogenic variant as 6.4%. Left ventricular ejection fraction was significantly lower in genotype positive probands (54.7±11.3 vs. 59.3±9.2%, p=0.005). IVF probands showed highest yield of positive genotype (54.0%), followed by LQTS (23.8%), and BrS (19.5%). CONCLUSIONS There were significant differences in clinical characteristics and genetic yields among BrS, LQTS, and IVF. Genetic testing did not provide better yield for BrS and LQTS. On the other hand, in IVF, genetic testing using multiple gene panel might enable the molecular diagnosis of concealed genotype, which may alter future clinical diagnosis and management strategies.
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Affiliation(s)
- Joo Hee Jeong
- Division of Cardiology, Korea University College of Medicine and Korea University Medical Center, Seoul, Korea
| | - Suk-Kyu Oh
- Division of Cardiology, Korea University College of Medicine and Korea University Medical Center, Seoul, Korea
| | - Yun Gi Kim
- Division of Cardiology, Korea University College of Medicine and Korea University Medical Center, Seoul, Korea
| | - Yun Young Choi
- Division of Cardiology, Korea University College of Medicine and Korea University Medical Center, Seoul, Korea
| | - Hyoung Seok Lee
- Division of Cardiology, Korea University College of Medicine and Korea University Medical Center, Seoul, Korea
| | - Jaemin Shim
- Division of Cardiology, Korea University College of Medicine and Korea University Medical Center, Seoul, Korea
| | - Yae Min Park
- Department of Internal Medicine, Gachon University Gil Medical Center, Gachon University College of Medicine, Incheon, Korea
| | - Jun-Hyung Kim
- Department of Internal Medicine, Chungnam National University Hospital, Chungnam National University College of Medicine, Daejeon, Korea
| | - Yong-Seog Oh
- Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Nam-Ho Kim
- Department of Internal Medicine, Wonkwang University Hospital, Wonkwang University School of Medicine, Iksan, Korea
| | - Hui-Nam Pak
- Department of Internal Medicine, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Young Keun On
- Department of Internal Medicine, Heart Vascular and Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Hyung Wook Park
- Department of Cardiology, Chonnam National University Hospital, Chonnam National University School of Medicine, Gwangju, Korea
| | - Gyo-Seung Hwang
- Department of Cardiology, Ajou University School of Medicine, Suwon, Korea
| | - Dae-Kyeong Kim
- Department of Internal Medicine, Busan Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - Young-Ah Park
- Department of Internal Medicine, Busan Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - Hyoung-Seob Park
- Department of Internal Medicine, Keimyung University Dongsan Medical Center, Keimyung University College of Medicine, Daegu, Korea
| | - Yongkeun Cho
- Department of Internal Medicine, Kyungpook National University Hospital, Daegu, Korea
| | - Seil Oh
- Department of Internal Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Jong-Il Choi
- Division of Cardiology, Korea University College of Medicine and Korea University Medical Center, Seoul, Korea.
| | - Young-Hoon Kim
- Division of Cardiology, Korea University College of Medicine and Korea University Medical Center, Seoul, Korea
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Cheon SH, Reeve J, Marsh HW, Jang HR. Cluster randomized control trial to reduce peer victimization: An autonomy-supportive teaching intervention changes the classroom ethos to support defending bystanders. Am Psychol 2023; 78:856-872. [PMID: 36701523 DOI: 10.1037/amp0001130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Peer victimization is a worldwide crisis unresolved by 50 years of research and intervention. We capitalized on recent methodological advances and integrated self-determination theory with a social-ecological perspective. We provided teachers with a professional development experience to establish a highly supportive classroom climate that enabled the emergence of pro-victim student bystanders during bullying episodes. In our longitudinal cluster randomized control trial, we randomly assigned 24 teachers (15 men, 9 women; 19 middle school, 5 high school; 32.8 years old, 6.7 years of experience) in 48 classrooms to the autonomy-supportive teaching (AST) workshop (24 classrooms) or the no-intervention control (24 classrooms). Their 1,178 students (age: M = 13.7, SD = 1.5; range = 11-18) reported their perceived teacher autonomy support; perceived classmates' autonomy support; adoption of the defender role; and peer victimization at the beginning, middle, and end of an 18-week semester. A doubly latent multilevel structural equation model with follow-up mediation tests showed that experimental-group teachers created a substantially more supportive classroom climate, leading student bystanders to embrace the defender role. This classroom-wide (L2) emergence of pro-victim peer bystanders led to sharply reduced victimization (effect size = -.40). Unlike largely unsuccessful past interventions that focused mainly on individual students, our randomized control trial intervention substantially reduced bullying and victimization. Focusing on individual students is likely to be ineffective (even counterproductive) without first changing the normative climate that reinforces bullying. Accordingly, our intervention focused on the classroom teacher. In the classrooms of these teachers, bystanders supported the victims because the classroom climate supported the bystanders. (PsycInfo Database Record (c) 2023 APA, all rights reserved).
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Affiliation(s)
- Sung Hyeon Cheon
- Department of Physical Education, College of Education, Korea University
| | - Johnmarshall Reeve
- Institute for Positive Psychology and Education, Australian Catholic University
| | - Herbert W Marsh
- Institute for Positive Psychology and Education, Australian Catholic University
| | - Hye-Ryen Jang
- Institute for Positive Psychology and Education, Australian Catholic University
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Park B, Thak PK, Park E, Choi SJ, Lee J, Kwak S, Jung HH, Im GJ. Dynamic Range and Neural Response Threshold in Cochlear Implant Mapping Can Be Useful in Predicting Prognosis Related to Postoperative Speech Perception. J Audiol Otol 2023; 27:212-218. [PMID: 37872755 PMCID: PMC10603277 DOI: 10.7874/jao.2023.00374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 09/13/2023] [Accepted: 10/06/2023] [Indexed: 10/25/2023] Open
Abstract
BACKGROUND AND OBJECTIVES To analyze mapping changes in dynamic range (DR) and neural response threshold (NRT) as prognostic factors for cochlear implant (CI). To analyze whether postoperative speech perception performance could be predicted using DR change and initial NRT. SUBJECTS AND METHODS The speech comprehension data of 33 patients with CI were retrospectively analyzed after 1, 3, 6, and 12 months of device use. All subjects were adult, postlingually hearing-impaired, and Cochlear Nucleus CI users. Speech perception performance was evaluated using aided pure tone audiometry, consonant, vowel, one-word, two-word, and sentence tests. RESULTS The averages of initial NRT and DR changes were 197.8±25.9 CU (104-236) and 22.2±18.4 CU (-15-79), respectively. The initial DR was 40.8±16.6 CU. The postoperative DR was 50.3±16.4 CU at 3 months, 58±12.3 CU at 6 months, and 62.9±10.4 CU at 12 months. A gradual increase of DR was observed during the first year of CI. Compared with the initial DR, significant increases in DR were observed at 3 (p<0.05), 6 (p<0.001), and 12 (p<0.001) months. Compared with initial speech performance outcomes, a significant gain in all performance outcomes was achieved at 12 months (p<0.001). CONCLUSIONS Patients with low NRT after CI surgery could initially set DR to a wider range and had better final speech perception outcomes. Conversely, patients with high NRT after CI surgery had to set up a gradual increase in DR while adjusting the T-C level, and the final speech perception outcomes were worse. DR and NRT, the main CI mapping variables, can help predict prognosis related to speech perception outcomes after CI surgery. In conclusion, the post-CI speech perception is better with a lower initial NRT, wider final DR, or younger age.
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Affiliation(s)
- Bongil Park
- Department of Otolaryngology-Head and Neck Surgery, Korea University College of Medicine, Seoul, Korea
| | - Pyung Kon Thak
- Department of Otolaryngology-Head and Neck Surgery, Korea University College of Medicine, Seoul, Korea
| | - Euyhyun Park
- Department of Otolaryngology-Head and Neck Surgery, Korea University College of Medicine, Seoul, Korea
| | - Soo Jeong Choi
- Department of Otolaryngology-Head and Neck Surgery, Korea University College of Medicine, Seoul, Korea
| | - Juhyun Lee
- Department of Otolaryngology-Head and Neck Surgery, Korea University College of Medicine, Seoul, Korea
| | - Sooun Kwak
- Department of Otolaryngology-Head and Neck Surgery, Korea University College of Medicine, Seoul, Korea
| | - Hak Hyun Jung
- Department of Otolaryngology-Head and Neck Surgery, Korea University College of Medicine, Seoul, Korea
| | - Gi Jung Im
- Department of Otolaryngology-Head and Neck Surgery, Korea University College of Medicine, Seoul, Korea
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Kim JH, Kim S, Ryu KJ, Park H, Kim YJ, Choe SA. Socioeconomic Factors and Abortive Outcomes of Clinical Pregnancy After Embryo Transfer in the Setting of Universal Health Insurance Coverage of IVF. J Korean Med Sci 2023; 38:e293. [PMID: 37750367 PMCID: PMC10519783 DOI: 10.3346/jkms.2023.38.e293] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 05/31/2023] [Indexed: 09/27/2023] Open
Abstract
BACKGROUND In vitro fertilization-embryo transfer (IVF-ET), an expensive option for infertile couples, started to be fully covered by the National Health Insurance (NHI) from October 2017 in South Korea. We investigated the association between woman's socioeconomic status (SES) and abortive outcomes in pregnancies after IVF-ET in the setting of universal coverage of the treatment. METHODS Using the NHI database in South Korea, we conducted a retrospective cohort study of all women who achieved clinical pregnancy after ET between October 2017 and February 2019. A total of 44,038 clinical pregnancy episodes of 29,847 women who underwent ET were analyzed. We used employment status, income in percentiles, and living in the Seoul capital area as indicators of SES. Relative risks (RRs) for abortive pregnancy outcomes were calculated for each socioeconomic stratum, using log-binomial regression models included woman's age, body mass index, fasting blood glucose, fresh ET, month of ET, and history of smoking. RESULTS While most pregnancy outcomes were live births (n = 30,783, 69.9%), 11,215 (25.5%) cycles ended with abortion or early pregnancy loss, 1,779 (4.0%) cycles were ectopic pregnancy, 45 (0.1%) were coded as molar pregnancy, and 224 (0.5%) were fetal death in utero or stillbirth. The risk of overall abortive outcomes was higher when a woman was unemployed (adjusted RR, 1.08; 95% confidence interval [CI], 1.05-1.11) or living in a non-Seoul capital area (1.11; 95% CI, 1.08-1.14). The association between relative income level and abortive outcomes was close to null. Living outside Seoul capital area was associated with the greater risk of abortive outcomes especially in younger women. CONCLUSION Unemployment and living in non-capital areas were associated with a higher risk of abortive outcomes among pregnancies after ET, even in the setting of universal coverage of IVF-ET. This suggests potential impact of socioeconomic position on the IVF-ET pregnancy.
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Affiliation(s)
- Jee Hyun Kim
- Department of Fertility Center, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Korea
| | - Seyoung Kim
- Department of Public Health Science, Graduate School of Public Health, Seoul National University, Seoul, Korea
| | - Ki-Jin Ryu
- Department of Obstetrics and Gynecology, Korea University College of Medicine, Seoul, Korea
| | - Hyuntae Park
- Department of Obstetrics and Gynecology, Korea University College of Medicine, Seoul, Korea
| | - Yong-Jin Kim
- Department of Obstetrics and Gynecology, Korea University College of Medicine, Seoul, Korea
| | - Seung-Ah Choe
- Department of Preventive Medicine, Korea University College of Medicine, Seoul, Korea.
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Kang KW, Jeon MJ, Yu ES, Kim DS, Lee BH, Lee SR, Choi CW, Park Y, Kim BS, Sung HJ. Cytomegalovirus reactivation under pre-emptive therapy following allogeneic hematopoietic stem cell transplant: Pattern, survival, and risk factors in the Republic of Korea. PLoS One 2023; 18:e0291268. [PMID: 37703263 PMCID: PMC10499250 DOI: 10.1371/journal.pone.0291268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 08/24/2023] [Indexed: 09/15/2023] Open
Abstract
INTRODUCTION Pre-emptive therapy for cytomegalovirus (CMV) reactivation has been used in allogeneic hematopoietic stem cell transplantation (allo-HSCT). It is unclear if this strategy has poorer clinical outcomes in CMV-endemic areas and if more aggressive prophylaxis is required. METHODS We retrospectively analyzed the patterns and survival after CMV reactivation in patients undergoing pre-emptive therapy following allo-HSCT and assessed high-risk patients who could benefit from aggressive CMV prophylaxis in endemic areas. RESULTS Of the 292 patients who underwent allo-HSCT, 70.5% (donor+ or recipient+) were CMV seropositive. CMV reactivation occurred in 139 patients (47.6%), with a median of 31.5 days from day 0 of allo-HSCT. The overall survival of patients with CMV reactivation who received pre-emptive therapy did not differ from those without reactivation. Of the 139 patients with CMV reactivation, 78 (56.1%) underwent ≥2 rounds of pre-emptive therapy. In multivariate analysis, the risk of CMV reactivation was higher in patients with multiple myeloma, with CMV seropositivity of the recipient and donor, administered with a higher dose of anti-thymocyte globulin (ATG), and with acute graft-versus-host disease (aGVHD) ≥ grade 2. CONCLUSION Although half of the patients with allo-HSCT were administered with pre-emptive therapy for CMV, CMV reactivation did not affect their survival, indicating the advantages of pre-emptive therapy, even in CMV-endemic areas. The cost-effectiveness of more aggressive CMV prophylaxis should be re-evaluated in patients at a high risk for CMV reactivation.
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Affiliation(s)
- Ka-Won Kang
- Division of Hematology-Oncology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Republic of Korea
| | - Min Ji Jeon
- Division of Hematology-Oncology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Republic of Korea
| | - Eun Sang Yu
- Division of Hematology-Oncology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Republic of Korea
| | - Dae Sik Kim
- Division of Hematology-Oncology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Republic of Korea
| | - Byung-Hyun Lee
- Division of Hematology-Oncology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Republic of Korea
| | - Se Ryeon Lee
- Division of Hematology-Oncology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Republic of Korea
| | - Chul Won Choi
- Division of Hematology-Oncology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Republic of Korea
| | - Yong Park
- Division of Hematology-Oncology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Republic of Korea
| | - Byung Soo Kim
- Division of Hematology-Oncology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Republic of Korea
| | - Hwa Jung Sung
- Division of Hematology-Oncology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Republic of Korea
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Park S, Bae G. Characteristics and Health Care Spending of Persistently and Transiently High-cost Older Adults in Korea. J Prev Med Public Health 2023; 56:475-480. [PMID: 37735830 PMCID: PMC10579633 DOI: 10.3961/jpmph.23.270] [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: 06/12/2023] [Accepted: 08/28/2023] [Indexed: 09/23/2023] Open
Abstract
OBJECTIVES This study examined differences in health care spending and characteristics among older adults in Korea by high-cost status (persistently, transiently, and never high-cost). METHODS We identified 1 364 119 older adults using data from the Korean National Insurance Claims Database for 2017-2019. Outcomes included average annual total health care spending and high-cost status for 2017-2019. Linear regression was used to estimate differences in the outcomes while adjusting for individual-level characteristics. RESULTS Persistently and transiently high-cost older adults had higher health care spending than never high-cost older adults, but the difference in health care spending was greater among persistently high-cost older adults than among transiently high-cost older adults (US$20 437 vs. 5486). Despite demographic and socioeconomic differences between transiently high-cost and never high-cost older adults, the presence of comorbid conditions remained the most significant factor. However, there were no or small differences in the prevalence of comorbid conditions between persistently high-cost and transiently high-cost older adults. Rather, notable differences were observed in socioeconomic status, including disability and receipt of Medical Aid. CONCLUSIONS Medical risk factors contribute to high health care spending to some extent, but social risk factors may be a source of persistent high-cost status among older adults in Korea.
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Affiliation(s)
- Sungchul Park
- Department of Health Policy and Management, Korea University College of Health Science, Seoul, Korea
- BK21 FOUR R&E Center for Learning Health Systems, Korea University, Seoul, Korea
| | - Giryeon Bae
- Department of Health Policy and Management, Korea University College of Health Science, Seoul, Korea
- BK21 FOUR R&E Center for Learning Health Systems, Korea University, Seoul, Korea
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Noh CH, Chun SH, Lim J, Kim MH, Choi S, Joo YS, Lee KW. Monitoring arsenic species concentration in rice-based processed products distributed in South Korean markets and related risk assessment. Food Sci Biotechnol 2023; 32:1361-1372. [PMID: 37457401 PMCID: PMC10348953 DOI: 10.1007/s10068-023-01270-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 01/10/2023] [Accepted: 01/27/2023] [Indexed: 03/09/2023] Open
Abstract
Rice is an important grain as a major source of carbohydrates in Asia but contains more arsenic (As) than other grains. A total of 239 rice-based processed foods (rice, n = 30; rice cake, n = 30; porridge, n = 39; noodles, n = 33; bread, n = 20; snack, n = 59; powder, n = 28) were purchased in 2019 from domestic markets to measure total As (tAs) and As species. The average tAs and inorganic As (iAs) in each sample group ranged from 20 to 180 μg/kg (porridge for baby to noodle) and 4.4-85 μg/kg (porridge for baby to powder), respectively. The correlation between the iAs and tAs was affected by the variety of ingredients, such as the presence of seaweed (tAs) and the milling type of rice (iAs). Although rice cakes and baby rice-based powders are a source of concern for both adults and children, respectively, risk assessments indicate that most rice-based foods are generally safe to consume in South Korea. Graphical abstract Supplementary Information The online version contains supplementary material available at 10.1007/s10068-023-01270-9.
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Affiliation(s)
- Chang-Hyun Noh
- Department of Biotechnology, College of Life Science & Biotechnology, Korea University, 145, Anam-Ro, Seongbuk-Gu, Seoul, 02841 Republic of Korea
| | - Su-Hyun Chun
- Institute of Biomedical Science and Food Safety, Korea University, 145, Anam-Ro, Seongbuk-Gu, Seoul, 02841 Republic of Korea
- Pro_B Co., Ltd, 145, Anam-Ro, Seongbuk-Gu, Seoul, 02841 Republic of Korea
| | - JoonKi Lim
- Department of Statistics, College of Natural Science, Dongguk University, 30, Pildong-Ro 1-Gil, Jung-Gu, Seoul, 04620 Republic of Korea
| | - Min-hyuk Kim
- Department of Biotechnology, College of Life Science & Biotechnology, Korea University, 145, Anam-Ro, Seongbuk-Gu, Seoul, 02841 Republic of Korea
| | - Seogyeong Choi
- Department of Biotechnology, College of Life Science & Biotechnology, Korea University, 145, Anam-Ro, Seongbuk-Gu, Seoul, 02841 Republic of Korea
| | - Yong-Sung Joo
- Department of Statistics, College of Natural Science, Dongguk University, 30, Pildong-Ro 1-Gil, Jung-Gu, Seoul, 04620 Republic of Korea
| | - Kwang-Won Lee
- Department of Biotechnology, College of Life Science & Biotechnology, Korea University, 145, Anam-Ro, Seongbuk-Gu, Seoul, 02841 Republic of Korea
- Department of Food Bioscience and Technology, College of Life Sciences and Biotechnology, Korea University, 145, Anam-Ro, Seongbuk-Gu, Seoul, 02841 Republic of Korea
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Kim YI, Choi Y, Park J. The role of continuous glucose monitoring in physical activity and nutrition management: perspectives on present and possible uses. Phys Act Nutr 2023; 27:44-51. [PMID: 37946446 PMCID: PMC10636508 DOI: 10.20463/pan.2023.0028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 09/27/2023] [Accepted: 09/28/2023] [Indexed: 11/12/2023] Open
Abstract
PURPOSE Continuous glucose monitoring (CGM) is on the rise as the prevalence of obesity and diabetes increases. This review aimed to explore the use of CGM and its potential novel applications in physical activity and nutrition management. METHODS We searched PubMed, Web of Science, and Wiley Online Library databases using the keywords 'continuous glucose monitor,' 'nutrition,' 'physical activity,' and 'numerical modeling.' RESULTS Continuous blood glucose measurement is useful for individuals with obesity and diabetes. Long-term blood glucose data allow for personalized planning of nutritional composition, meal timing, and physical activity type and intensity, as well as help prevent hypoglycemia and hyperglycemia. Thus, understanding the limitations of CGM is important for its effective use. CONCLUSION CGM systems are being increasingly used to monitor and identify appropriate blood glucose controlling interventions. Blood glucose level is influenced by various factors such as nutrient composition, meal timing, physical activity, circadian rhythm, and cortisol levels. Numerical modeling can be used to analyze the complex relationship between stress, sleep, nutrition, and physical activity, which affect blood glucose levels. In future, blood glucose, sleep, and stress data will be integrated to predict appropriate lifestyle levels for blood glucose management. This integrated approach improves glucose control and overall wellbeing, potentially reducing societal costs.
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Affiliation(s)
- Young-Im Kim
- Department of Physical Education, Korea University, Republic of Korea
| | - Youngju Choi
- Institute of Specialized Teaching and Research, Inha University, Republic of Korea
| | - Jonghoon Park
- Department of Physical Education, Korea University, Republic of Korea
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Kim T, Gwak E, Erdenetuya B, Oh JW, Yoon JW, Kim MH, Ryu J, Choe SA. Does the father's job matter? Parental occupation and preterm birth in Korea. Epidemiol Health 2023; 45:e2023078. [PMID: 37641820 PMCID: PMC10728619 DOI: 10.4178/epih.e2023078] [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: 04/03/2023] [Accepted: 08/11/2023] [Indexed: 08/31/2023] Open
Abstract
OBJECTIVES Limited evidence is available regarding the impact of paternal occupation and its combined effect with maternal occupation on preterm birth. Therefore, we assessed the association of maternal and paternal occupations with preterm birth. METHODS We used the national birth data of Korea between 2010 and 2020. Parental occupations were divided into 5 categories: (1) managers; (2) professionals, technicians, and related workers; (3) clerks and support workers; (4) service and sales workers; and (5) manual workers. A multinomial logistic regression model was used to calculate the adjusted odds ratios (aORs) of extremely, very, and moderate-to-late preterm births per occupational category considering individual risk factors. RESULTS For the 4,004,976 singleton births, 40.2% of mothers and 95.5% of fathers were employed. Compared to non-employment, employment was associated with a lower risk of preterm birth. Among employed mothers, service and sales occupations were associated with a higher risk of preterm birth than managerial occupations (aOR, 1.06; 95% confidence interval [CI], 1.01 to 1.10 for moderate-to-late preterm births). The father's manual occupation was associated with a higher risk of preterm birth (aOR, 1.09; 95% CI, 1.05 to 1.13 for moderate-to-late preterm) than managerial occupations. When both parents had high-risk occupations, the risk of preterm birth was higher than in cases where only the mother or neither of the parents had a high-risk occupation. CONCLUSIONS Paternal occupation was associated with preterm birth regardless of maternal employment and occupation and modified the effect of maternal occupation. Detailed occupational environment data are needed to identify the paternal exposures that increase the risk.
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Affiliation(s)
- Taemi Kim
- Department of Public Health, Korea University, Seoul, Korea
| | - Eunseon Gwak
- Department of Preventive Medicine, Korea University College of Medicine, Seoul, Korea
| | - Bolormaa Erdenetuya
- Department of Preventive Medicine, Korea University College of Medicine, Seoul, Korea
| | - Jeong-Won Oh
- Department of Obstetrics and Gynecology, Soonchunhyang University Seoul Hospital, Seoul, Korea
| | - Jung-won Yoon
- Department of Obstetrics and Gynecology, National Medical Center, Seoul, Korea
| | - Myoung-Hee Kim
- Center for Public Health Data Analytics, National Medical Center, Seoul, Korea
| | - Jia Ryu
- Department of Occupational and Environmental Medicine, Catholic Kwandong University International St. Mary’s Hospital, Incheon, Korea
| | - Seung-Ah Choe
- Department of Public Health, Korea University, Seoul, Korea
- Department of Preventive Medicine, Korea University College of Medicine, Seoul, Korea
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Yoo SH, Aota LS, Shin S, El-Zoka AA, Kang PW, Lee Y, Lee H, Kim SH, Gault B. Dopant Evolution in Electrocatalysts after Hydrogen Oxidation Reaction in an Alkaline Environment. ACS Energy Lett 2023; 8:3381-3386. [PMID: 37588014 PMCID: PMC10425978 DOI: 10.1021/acsenergylett.3c00842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 06/22/2023] [Indexed: 08/18/2023]
Abstract
Introduction of interstitial dopants has opened a new pathway to optimize nanoparticle catalytic activity for, e.g., hydrogen evolution/oxidation and other reactions. Here, we discuss the stability of a property-enhancing dopant, B, introduced through the controlled synthesis of an electrocatalyst Pd aerogel. We observe significant removal of B after the hydrogen oxidation reaction. Ab initio calculations show that the high stability of subsurface B in Pd is substantially reduced when H is adsorbed/absorbed on the surface, favoring its departure from the host nanostructure. The destabilization of subsurface B is more pronounced, as more H occupies surface sites and empty interstitial sites. We hence demonstrate that the H2 fuel itself favors the microstructural degradation of the electrocatalyst and an associated drop in activity.
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Affiliation(s)
- Su-Hyun Yoo
- Max-Planck
Institut für Eisenforschung GmbH, 40237 Düsseldorf, Germany
- Department
of Materials, Imperial College London, SW7 2AZ London, United Kingdom
| | | | - Sangyong Shin
- Department
of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Ayman A. El-Zoka
- Department
of Materials, Imperial College London, SW7 2AZ London, United Kingdom
| | - Phil Woong Kang
- Department
of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Yonghyuk Lee
- Fritz-Haber-Institut
der Max-Planck-Gesellschaft, Berlin 14195, Germany
| | - Hyunjoo Lee
- Department
of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Se-Ho Kim
- Max-Planck
Institut für Eisenforschung GmbH, 40237 Düsseldorf, Germany
- Department
of Materials Science and Engineering, Korea
University, Seoul 02841, Republic of Korea
| | - Baptiste Gault
- Max-Planck
Institut für Eisenforschung GmbH, 40237 Düsseldorf, Germany
- Department
of Materials, Imperial College London, SW7 2AZ London, United Kingdom
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Kim S, Hwangbo H, Chae S, Lee H. Biopolymers and Their Application in Bioprinting Processes for Dental Tissue Engineering. Pharmaceutics 2023; 15:2118. [PMID: 37631331 PMCID: PMC10457894 DOI: 10.3390/pharmaceutics15082118] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 08/05/2023] [Accepted: 08/08/2023] [Indexed: 08/27/2023] Open
Abstract
Dental tissues are composed of multiple tissues with complex organization, such as dentin, gingiva, periodontal ligament, and alveolar bone. These tissues have different mechanical and biological properties that are essential for their functions. Therefore, dental diseases and injuries pose significant challenges for restorative dentistry, as they require innovative strategies to regenerate damaged or missing dental tissues. Biomimetic bioconstructs that can effectively integrate with native tissues and restore their functionalities are desirable for dental tissue regeneration. However, fabricating such bioconstructs is challenging due to the diversity and complexity of dental tissues. This review provides a comprehensive overview of the recent developments in polymer-based tissue engineering and three-dimensional (3D) printing technologies for dental tissue regeneration. It also discusses the current state-of-the-art, focusing on key techniques, such as polymeric biomaterials and 3D printing with or without cells, used in tissue engineering for dental tissues. Moreover, the final section of this paper identifies the challenges and future directions of this promising research field.
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Affiliation(s)
- Suhon Kim
- Barun Plant Orthodontics and Dental Clinic, Seongnam 13312, Republic of Korea;
| | - Hanjun Hwangbo
- Department of Precision Medicine, Sungkyunkwan University School of Medicine, Suwon 16419, Republic of Korea; (H.H.); (S.C.)
| | - SooJung Chae
- Department of Precision Medicine, Sungkyunkwan University School of Medicine, Suwon 16419, Republic of Korea; (H.H.); (S.C.)
| | - Hyeongjin Lee
- Department of Precision Medicine, Sungkyunkwan University School of Medicine, Suwon 16419, Republic of Korea; (H.H.); (S.C.)
- Department of Biotechnology and Bioinformatics, Korea University, Sejong 30019, Republic of Korea
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Park J, Han S, Jeon Y, Hong JY. Spinal epidural abscess as predicting factor for the necessity of early surgical intervention in patients with pyogenic spondylitis. BMC Musculoskelet Disord 2023; 24:586. [PMID: 37464374 DOI: 10.1186/s12891-023-06703-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 07/06/2023] [Indexed: 07/20/2023] Open
Abstract
BACKGROUND Pyogenic spondylitis is a condition with low incidence that can lead to neurological sequelae and even life-threatening conditions. While conservative methods, including antibiotics and bracing, are considered the first-line treatment option for pyogenic spondylitis, it is important to identify patients who require early surgical intervention to prevent progressive neurologic deficits or deterioration of the systemic condition. Surgical treatment should be considered in patients with progressive neurologic deficits or deteriorating systemic condition. However, currently, there is a lack of treatment guidelines, particularly with respect to whether surgical treatment is necessary for pyogenic spondylitis. This study aims to analyze the radiological epidural abscess on MRI and clinical factors to predict the need for early surgical intervention in patients with pyogenic spondylitis and provide comprehensive insight into the necessity of early surgical intervention in these patients. METHODS This study retrospectively reviewed 47 patients with pyogenic spondylitis including spondylodiscitis, vertebral osteomyelitis, epidural abscess, and/or psoas abscess. All patients received plain radiographs, and a gadolinium-enhanced magnetic resonance imaging (MRI) scan. All patients have either tissue biopsies and/or blood cultures for the diagnosis of a pathogen. Demographic data, laboratory tests, and clinical predisposing factors including comorbidities and concurrent other infections were analyzed. RESULTS We analyzed 47 patients, 25 of whom were female, with a mean age of 70,7 years. MRI revealed that 26 of 47 patients had epidural abscesses. The surgical group had a significantly higher incidence of epidural abscess than the non-surgical group (p = 0.001). In addition, both CRP and initial body temperature (BT) were substantially higher in the surgical group compared to the non-surgical group. There was no significant difference between the surgical group and the non-surgical group in terms of age, gender, comorbidities, and concurrent infectious disorders, as well as the number of affected segments and affected spine levels. However, the surgical group had lengthier hospital stays and received more antibiotics. CONCLUSION The presence of an epidural abscess on MRI should be regarded crucial in the decision-making process for early surgical treatment in patients with pyogenic spondylitis in order to improve clinical outcomes.
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Affiliation(s)
- Jiwon Park
- Department of Orthopedics, Korea University Ansan Hospital, Ansan, 123, Jeokgeum-ro, Danwon-gu, 15355, Ansan-si, Gyeonggi-do, Republic of Korea
| | - Sangsoo Han
- Department of Emergency Medicine, Soonchunhyang University Bucheon Hospital, 170 Jomaru- ro, 14584, Bucheon, Gyeonggi-do, Republic of Korea
| | - Yeong Jeon
- Department of Orthopedics, Korea University Ansan Hospital, Ansan, 123, Jeokgeum-ro, Danwon-gu, 15355, Ansan-si, Gyeonggi-do, Republic of Korea
| | - Jae-Young Hong
- Department of Orthopedics, Korea University Ansan Hospital, Ansan, 123, Jeokgeum-ro, Danwon-gu, 15355, Ansan-si, Gyeonggi-do, Republic of Korea.
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Choi J, Son Y, Moon JW, Park DW, Kim YS, Oh J. Fusion Protein of RBP and Albumin Domain III Reduces Lung Fibrosis by Inactivating Lung Stellate Cells. Biomedicines 2023; 11:2007. [PMID: 37509646 PMCID: PMC10377390 DOI: 10.3390/biomedicines11072007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 07/12/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023] Open
Abstract
Activated stellate cells play a role in fibrosis development in the liver, pancreas, and kidneys. The fusion protein R-III, which consists of retinol-binding protein and albumin domain III, has been demonstrated to attenuate liver and renal fibrosis by suppressing stellate cell activation. In this study, we investigated the efficacy of R-III against bleomycin-induced lung fibrosis in mice. R-III reduced lung fibrosis and primarily localized in autofluorescent cells in the lung tissue. Furthermore, we isolated lung stellate cells (LSCs) from rat lungs using the isolation protocol employed for hepatic stellate cells (HSCs). LSCs shared many characteristics with HSCs, including the presence of vitamin A-containing lipid droplets and the expression of alpha-smooth muscle actin and collagen type I, markers for activated HSCs/myofibroblasts. LSCs spontaneously transdifferentiated into myofibroblasts in in vitro culture, which was inhibited by R-III. These findings suggest that R-III may reduce lung fibrosis by inactivating LSCs and could be a promising treatment for extrahepatic fibrosis.
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Affiliation(s)
- Jaeho Choi
- Department of Anatomy, College of Medicine, Korea University, Seoul 02841, Republic of Korea
| | - Yuna Son
- Department of Anatomy, College of Medicine, Korea University, Seoul 02841, Republic of Korea
| | - Ji Wook Moon
- Department of Anatomy, College of Medicine, Korea University, Seoul 02841, Republic of Korea
| | - Dae Won Park
- Division of Infectious Diseases, Department of Internal Medicine, Korea University Ansan Hospital, Ansan 15355, Republic of Korea
| | - Young-Sik Kim
- Department of Pathology, Korea University Ansan Hospital, Ansan 15355, Republic of Korea
| | - Junseo Oh
- Department of Anatomy, College of Medicine, Korea University, Seoul 02841, Republic of Korea
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Lee SJ, Park SY, Lee KH, Lee MW, Yu CY, Maeng J, Kim HD, Kim SW. Development of a Simple Direct and Hot-Start PCR Using Escherichia coli-Expressing Taq DNA Polymerase. Int J Mol Sci 2023; 24:11405. [PMID: 37511160 PMCID: PMC10379934 DOI: 10.3390/ijms241411405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 07/06/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023] Open
Abstract
Taq DNA polymerases have played an important role in molecular biology for several years and are frequently used for polymerase chain reaction (PCR); hence, there is an increasing interest in developing a convenient method for preparing Taq DNA polymerase for routine use in laboratories. We developed a method using Escherichia coli (E. coli) that expresses thermostable Taq DNA polymerase directly in the PCR without purification. The Taq gene was transformed into E. coli and expressed. After overnight incubation and washing, E. coli-expressing Taq DNA polymerase (EcoliTaq) was used as the DNA polymerase without purification. EcoliTaq showed activity comparable to that of commercial DNA polymerase and remained stable for 3 months. With a high-pH buffer containing 2% Tween 20 and 0.4 M trehalose, EcoliTaq facilitated direct PCR amplification from anticoagulated whole blood samples. EcoliTaq exhibited good performance in allele-specific PCR using both purified DNA and whole blood samples. Furthermore, it proved to be useful as a DNA polymerase in hot-start PCR by effectively minimizing non-specific amplification. We developed a simple and cost-effective direct and hot-start PCR method in which EcoliTaq was used directly as a PCR enzyme, thus eliminating the laborious and time-consuming steps of polymerase purification.
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Affiliation(s)
- Sun Ju Lee
- Department of Health and Safety Convergence Science, Graduate School, Korea University, 145 Anam-ro, Seoul 02841, Republic of Korea
- L-HOPE Program for Community-Based Total Learning Health Systems, Korea University, 145 Anam-ro, Seoul 02841, Republic of Korea
| | - Sang-Yong Park
- Department of Health and Safety Convergence Science, Graduate School, Korea University, 145 Anam-ro, Seoul 02841, Republic of Korea
| | - Kwang-Ho Lee
- Department of Health and Safety Convergence Science, Graduate School, Korea University, 145 Anam-ro, Seoul 02841, Republic of Korea
- Department of Laboratory Medicine, ASAN Medical Center, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Republic of Korea
| | - Min-Woo Lee
- Department of Health and Safety Convergence Science, Graduate School, Korea University, 145 Anam-ro, Seoul 02841, Republic of Korea
| | - Chae-Yeon Yu
- Department of Health and Safety Convergence Science, Graduate School, Korea University, 145 Anam-ro, Seoul 02841, Republic of Korea
- L-HOPE Program for Community-Based Total Learning Health Systems, Korea University, 145 Anam-ro, Seoul 02841, Republic of Korea
- Graduate School of Particulate Matter Specialization, Korea University, 145 Anam-ro, Seoul 02841, Republic of Korea
| | - Jaeyoung Maeng
- Department of Health and Safety Convergence Science, Graduate School, Korea University, 145 Anam-ro, Seoul 02841, Republic of Korea
- L-HOPE Program for Community-Based Total Learning Health Systems, Korea University, 145 Anam-ro, Seoul 02841, Republic of Korea
- Graduate School of Particulate Matter Specialization, Korea University, 145 Anam-ro, Seoul 02841, Republic of Korea
| | - Hyeong-Dong Kim
- Department of Health and Safety Convergence Science, Graduate School, Korea University, 145 Anam-ro, Seoul 02841, Republic of Korea
| | - Suhng Wook Kim
- Department of Health and Safety Convergence Science, Graduate School, Korea University, 145 Anam-ro, Seoul 02841, Republic of Korea
- L-HOPE Program for Community-Based Total Learning Health Systems, Korea University, 145 Anam-ro, Seoul 02841, Republic of Korea
- Graduate School of Particulate Matter Specialization, Korea University, 145 Anam-ro, Seoul 02841, Republic of Korea
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Park K, Noh J, Kim K, Kim J, Cho HK, Kim SG, Yang E, Kim WK, Song JW. A Development of Rapid Whole-Genome Sequencing of Seoul orthohantavirus Using a Portable One-Step Amplicon-Based High Accuracy Nanopore System. Viruses 2023; 15:1542. [PMID: 37515228 PMCID: PMC10386077 DOI: 10.3390/v15071542] [Citation(s) in RCA: 1] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 07/10/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023] Open
Abstract
Whole-genome sequencing provides a robust platform for investigating the epidemiology and transmission of emerging viruses. Oxford Nanopore Technologies allows for real-time viral sequencing on a local laptop system for point-of-care testing. Seoul orthohantavirus (Seoul virus, SEOV), harbored by Rattus norvegicus and R. rattus, causes mild hemorrhagic fever with renal syndrome and poses an important threat to public health worldwide. We evaluated the deployable MinION system to obtain high-fidelity entire-length sequences of SEOV for the genome identification of accurate infectious sources and their genetic diversity. One-step amplicon-based nanopore sequencing was performed from SEOV 80-39 specimens with different viral copy numbers and SEOV-positive wild rats. The KU-ONT-SEOV-consensus module was developed to analyze SEOV genomic sequences generated from the nanopore system. Using amplicon-based nanopore sequencing and the KU-ONT-consensus pipeline, we demonstrated novel molecular diagnostics for acquiring full-length SEOV genome sequences, with sufficient read depth in less than 6 h. The consensus sequence accuracy of the SEOV small, medium, and large genomes showed 99.75-100% (for SEOV 80-39 isolate) and 99.62-99.89% (for SEOV-positive rats) identities. This study provides useful insights into on-site diagnostics based on nanopore technology and the genome epidemiology of orthohantaviruses for a quicker response to hantaviral outbreaks.
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Affiliation(s)
- Kyungmin Park
- Department of Microbiology, College of Medicine, Korea University, Seoul 02841, Republic of Korea
- BK21 Graduate Program, Department of Biomedical Sciences, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Juyoung Noh
- Department of Microbiology, College of Medicine, Korea University, Seoul 02841, Republic of Korea
- BK21 Graduate Program, Department of Biomedical Sciences, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Kijin Kim
- Centre for Infectious Disease Genomics and One Health, Faculty of Health Sciences, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
| | - Jongwoo Kim
- Department of Microbiology, College of Medicine, Korea University, Seoul 02841, Republic of Korea
- BK21 Graduate Program, Department of Biomedical Sciences, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Hee-Kyung Cho
- Department of Microbiology, College of Medicine, Korea University, Seoul 02841, Republic of Korea
- BK21 Graduate Program, Department of Biomedical Sciences, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Seong-Gyu Kim
- Department of Microbiology, College of Medicine, Korea University, Seoul 02841, Republic of Korea
- BK21 Graduate Program, Department of Biomedical Sciences, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Eunyoung Yang
- Department of Microbiology, College of Medicine, Korea University, Seoul 02841, Republic of Korea
| | - Won-Keun Kim
- Department of Microbiology, College of Medicine, Hallym University, Chuncheon 24252, Republic of Korea
- Institute of Medical Research, College of Medicine, Hallym University, Chuncheon 24252, Republic of Korea
| | - Jin-Won Song
- Department of Microbiology, College of Medicine, Korea University, Seoul 02841, Republic of Korea
- BK21 Graduate Program, Department of Biomedical Sciences, Korea University College of Medicine, Seoul 02841, Republic of Korea
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Lee JS, Noh OK, Park JE. Neonatal Risk Factors for Growth Retardation in Infants With Congenital Heart Disease. J Korean Med Sci 2023; 38:e196. [PMID: 37401493 DOI: 10.3346/jkms.2023.38.e196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 03/13/2023] [Indexed: 07/05/2023] Open
Abstract
BACKGROUND While the association of congenital heart disease (CHD) and growth retardation (GR) is known, data remain limited. This study investigated the incidence of GR and its neonatal risk factors in patients with CHD using nationwide population-based claims data. METHOD The study population was extracted from Korean National Health Insurance Service claims data from January 2002 to December 2020. We included patients diagnosed with CHD under one year of age. GR was defined as an idiopathic growth hormone deficiency or short stature on the claims data. We investigated the neonatal risk factors for GR. RESULTS The number of patients diagnosed with CHD within the first year of birth was 133,739. Of these, 2,921 newborns were diagnosed with GR. The cumulative incidence of GR was 4.8% at 19 years of age for individuals diagnosed with CHD at infancy. In the multivariable analysis, the significant risk factors for GR were preterm birth, small for gestational age, low birth weight, respiratory distress, bronchopulmonary dysplasia, bacterial sepsis, necrotizing enterocolitis, feeding problems and cardiac procedure. CONCLUSION Several neonatal conditions were significant risk factors for GR in CHD patients, and appropriate monitoring and treatment programs are required in CHD neonates with these factors. Considering this study is limited to claims data, further studies are warranted, including genetic and environmental factors affecting GR in CHD patients.
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Affiliation(s)
- Jue Seong Lee
- Department of Pediatrics, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Korea
| | - O Kyu Noh
- Department of Radiation Oncology, Ajou University School of Medicine, Suwon, Korea
- Department of Biomedical Informatics, Ajou University School of Medicine, Suwon, Korea
- Office of Biostatistics, Ajou Research Institute for Innovative Medicine, Suwon, Korea.
| | - Jun Eun Park
- Department of Pediatrics, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Korea.
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