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Moon S, Han S, Jang IH, Ryu J, Rha MS, Cho HJ, Yoon SS, Nam KT, Kim CH, Park MS, Seong JK, Lee WJ, Yoon JH, Chung YW, Ryu JH. Airway epithelial CD47 plays a critical role in inducing influenza virus-mediated bacterial super-infection. Nat Commun 2024; 15:3666. [PMID: 38693120 PMCID: PMC11063069 DOI: 10.1038/s41467-024-47963-5] [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: 02/01/2023] [Accepted: 04/16/2024] [Indexed: 05/03/2024] Open
Abstract
Respiratory viral infection increases host susceptibility to secondary bacterial infections, yet the precise dynamics within airway epithelia remain elusive. Here, we elucidate the pivotal role of CD47 in the airway epithelium during bacterial super-infection. We demonstrated that upon influenza virus infection, CD47 expression was upregulated and localized on the apical surface of ciliated cells within primary human nasal or bronchial epithelial cells. This induced CD47 exposure provided attachment sites for Staphylococcus aureus, thereby compromising the epithelial barrier integrity. Through bacterial adhesion assays and in vitro pull-down assays, we identified fibronectin-binding proteins (FnBP) of S. aureus as a key component that binds to CD47. Furthermore, we found that ciliated cell-specific CD47 deficiency or neutralizing antibody-mediated CD47 inactivation enhanced in vivo survival rates. These findings suggest that interfering with the interaction between airway epithelial CD47 and pathogenic bacterial FnBP holds promise for alleviating the adverse effects of super-infection.
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Affiliation(s)
- Sungmin Moon
- Department of Biomedical Sciences, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Seunghan Han
- Department of Biomedical Sciences, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - In-Hwan Jang
- National Creative Research Initiative Center for Hologenomics and School of Biological Sciences, Seoul National University, Seoul, 08826, Republic of Korea
| | - Jaechan Ryu
- Microenvironment and Immunity Unit, Institut Pasteur, INSERM U1224, Paris, France
| | - Min-Seok Rha
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Hyung-Ju Cho
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
- Airway Mucus Institute, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Sang Sun Yoon
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Ki Taek Nam
- Department of Biomedical Sciences, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Chang-Hoon Kim
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
- Airway Mucus Institute, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Man-Seong Park
- Department of Microbiology, Institute for Viral Diseases, Vaccine Innovation Center, Korea University College of Medicine, Seoul, 02841, Republic of Korea
| | - Je Kyung Seong
- Korea Mouse Phenotyping Center, Seoul National University, Seoul, 08826, Republic of Korea
- Laboratory of Developmental Biology and Genomics, College of Veterinary Medicine, Seoul National University, Seoul, 08826, Republic of Korea
| | - Won-Jae Lee
- National Creative Research Initiative Center for Hologenomics and School of Biological Sciences, Seoul National University, Seoul, 08826, Republic of Korea
| | - Joo-Heon Yoon
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
- Airway Mucus Institute, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Youn Wook Chung
- Department of Biomedical Sciences, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea.
- Airway Mucus Institute, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea.
| | - Ji-Hwan Ryu
- Department of Biomedical Sciences, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea.
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea.
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Kim J, Roh H, Moon S, Jeon C, Baek S, Cho W, Sim JY, Jeong U. Wireless breathable face mask sensor for spatiotemporal 2D respiration profiling and respiratory diagnosis. Biomaterials 2024; 309:122579. [PMID: 38670033 DOI: 10.1016/j.biomaterials.2024.122579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 04/07/2024] [Accepted: 04/13/2024] [Indexed: 04/28/2024]
Abstract
Owing to air pollution and the pandemic outbreak, the need for quantitative pulmonary monitoring has greatly increased. The COVID-19 outbreak has aroused attention for comfortable wireless monitoring of respiratory profiles and more real-time diagnosis of respiratory diseases. Although respiration sensors have been investigated extensively with single-pixel sensors, 2D respiration profiling with a pixelated array sensor has not been demonstrated for both exhaling and inhaling. Since the pixelated array sensor allowed for simultaneous profiling of the nasal breathing and oral breathing, it provides essential respiratory information such as breathing patterns, respiration habit, breathing disorders. In this study, we introduced an air-permeable, stretchable, and a pixelated pressure sensor that can be integrated into a commercial face mask. The mask sensor showed a strain-independent pressure-sensing performance, providing 2D pressure profiles for exhalation and inhalation. Real-time 2D respiration profiles could monitor various respiratory behaviors, such as oral/nasal breathing, clogged nose, out-of-breath, and coughing. Furthermore, they could detect respiratory diseases, such as rhinitis, sleep apnea, and pneumonia. The 2D respiratory profiling mask sensor is expected to be employed for remote respiration monitoring and timely patient treatment.
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Affiliation(s)
- Jaehyun Kim
- Department of Materials Science and Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, South Korea
| | - Heesung Roh
- Department of Convergence IT Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, South Korea
| | - Sungmin Moon
- Department of Materials Science and Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, South Korea
| | - Cheonhoo Jeon
- School of Electronics and Electrical Engineering, Dankook University, Yongin, Gyeonggi, 16890, South Korea
| | - Seunggoo Baek
- Department of Materials Science and Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, South Korea
| | - Woosung Cho
- Department of Materials Science and Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, South Korea
| | - Jae-Yoon Sim
- Department of Electrical Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, South Korea.
| | - Unyong Jeong
- Department of Materials Science and Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, South Korea.
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Cha J, Kim TG, Bhae E, Gwak HJ, Ju Y, Choe YH, Jang IH, Jung Y, Moon S, Kim T, Lee W, Park JS, Chung YW, Yang S, Kang YK, Hyun YM, Hwang GS, Lee WJ, Rho M, Ryu JH. Skin microbe-dependent TSLP-ILC2 priming axis in early life is co-opted in allergic inflammation. Cell Host Microbe 2024; 32:244-260.e11. [PMID: 38198924 DOI: 10.1016/j.chom.2023.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 09/17/2023] [Accepted: 12/12/2023] [Indexed: 01/12/2024]
Abstract
Although early life colonization of commensal microbes contributes to long-lasting immune imprinting in host tissues, little is known regarding the pathophysiological consequences of postnatal microbial tuning of cutaneous immunity. Here, we show that postnatal exposure to specific skin commensal Staphylococcus lentus (S. lentus) promotes the extent of atopic dermatitis (AD)-like inflammation in adults through priming of group 2 innate lymphoid cells (ILC2s). Early postnatal skin is dynamically populated by discrete subset of primed ILC2s driven by microbiota-dependent induction of thymic stromal lymphopoietin (TSLP) in keratinocytes. Specifically, the indole-3-aldehyde-producing tryptophan metabolic pathway, shared across Staphylococcus species, is involved in TSLP-mediated ILC2 priming. Furthermore, we demonstrate a critical contribution of the early postnatal S. lentus-TSLP-ILC2 priming axis in facilitating AD-like inflammation that is not replicated by later microbial exposure. Thus, our findings highlight the fundamental role of time-dependent neonatal microbial-skin crosstalk in shaping the threshold of innate type 2 immunity co-opted in adulthood.
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Affiliation(s)
- Jimin Cha
- Department of Biomedical Sciences, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Tae-Gyun Kim
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul 03722, Korea; Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Euihyun Bhae
- Department of Artificial Intelligence, Hanyang University, Seoul 04763, Korea
| | - Ho-Jin Gwak
- Department of Computer Science, Hanyang University, Seoul 04763, Korea
| | - Yeajin Ju
- Integrated Metabolomics Research Group, Western Seoul Center, Korea Basic Science Institute, Seoul 03759, Korea
| | - Young Ho Choe
- Department of Anatomy and Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Korea
| | - In-Hwan Jang
- National Creative Research Initiative Center for Hologenomics and School of Biological Sciences, Seoul National University, Seoul 08826, Korea
| | - Youngae Jung
- Integrated Metabolomics Research Group, Western Seoul Center, Korea Basic Science Institute, Seoul 03759, Korea
| | - Sungmin Moon
- Department of Biomedical Sciences, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Taehyun Kim
- Department of Biomedical Sciences, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Wuseong Lee
- Department of Biomedical Sciences, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Jung Sun Park
- Development and Differentiation Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea
| | - Youn Wook Chung
- Department of Biomedical Sciences, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Siyoung Yang
- Department of Biological Sciences, Sungkyunkwan University, Suwon 16419, Korea
| | - Yong-Kook Kang
- Development and Differentiation Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea
| | - Young-Min Hyun
- Department of Anatomy and Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Geum-Sook Hwang
- Integrated Metabolomics Research Group, Western Seoul Center, Korea Basic Science Institute, Seoul 03759, Korea; College of Pharmacy, Chung-Ang University, Seoul 06974, Korea
| | - Won-Jae Lee
- National Creative Research Initiative Center for Hologenomics and School of Biological Sciences, Seoul National University, Seoul 08826, Korea
| | - Mina Rho
- Department of Computer Science, Hanyang University, Seoul 04763, Korea; Department of Biomedical Informatics, Hanyang University, Seoul 04763, Korea
| | - Ji-Hwan Ryu
- Department of Biomedical Sciences, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul 03722, Korea.
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Kim K, Byun YJ, Zheng CM, Moon S, Jo SJ, Kang HW, Kim WT, Choi YH, Moon SK, Kim WJ, Piao XM, Yun SJ. COL6A1 expression as a potential prognostic biomarker for risk stratification of T1 high grade bladder cancer: Unveiling the aggressive nature of a distinct non-muscle invasive subtype. Investig Clin Urol 2024; 65:94-103. [PMID: 38197756 PMCID: PMC10789541 DOI: 10.4111/icu.20230227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/23/2023] [Accepted: 10/05/2023] [Indexed: 01/11/2024] Open
Abstract
PURPOSE T1 high grade (T1HG) bladder cancer (BC) is a type of non-muscle invasive BC (NMIBC) that is recognized as an aggressive subtype with a heightened propensity for progression. Current risk stratification methods for NMIBC rely on clinicopathological indicators; however, these approaches do not adequately capture the aggressive nature of T1HG BC. Thus, new, more accurate biomarkers for T1HG risk stratification are needed. Here, we enrolled three different patient cohorts and investigated expression of collagen type VI alpha 1 (COL6A1), a key component of the extracellular matrix, at different stages and grades of BC, with a specific focus on T1HG BC. MATERIALS AND METHODS Samples from 298 BC patients were subjected to RNA sequencing and real-time polymerase chain reaction. RESULTS We found that T1HG BC and muscle invasive BC (MIBC) exhibited comparable expression of COL6A1, which was significantly higher than that by other NMIBC subtypes. In particular, T1HG patients who later progressed to MIBC had considerably higher expression of COL6A1 than Ta, T1 low grade patients, and patients that did not progress, highlighting the aggressive nature and higher risk of progression associated with T1HG BC. Moreover, Cox and Kaplan-Meier survival analyses revealed a significant association between elevated expression of COL6A1 and poor progression-free survival of T1HG BC patients (multivariate Cox hazard ratio, 16.812; 95% confidence interval, 3.283-86.095; p=0.001 and p=0.0002 [log-rank test]). CONCLUSIONS These findings suggest that COL6A1 may be a promising biomarker for risk stratification of T1HG BC, offering valuable insight into disease prognosis and guidance of personalized treatment decisions.
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Affiliation(s)
- Kyeong Kim
- Department of Urology, Chungbuk National University Hospital, Cheongju, Korea
| | - Young Joon Byun
- Department of Urology, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Chuang-Ming Zheng
- Department of Urology, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Sungmin Moon
- Department of Urology, Chungbuk National University Hospital, Cheongju, Korea
- Department of Convergence of Medical Science, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Soo Jeong Jo
- Department of Convergence of Medical Science, Chungbuk National University College of Medicine, Cheongju, Korea
- Department of Rehabilitation Medicine, Chungbuk National University Hospital, Cheongju, Korea
| | - Ho Won Kang
- Department of Urology, Chungbuk National University Hospital, Cheongju, Korea
- Department of Urology, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Won Tae Kim
- Department of Urology, Chungbuk National University Hospital, Cheongju, Korea
- Department of Urology, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Yung Hyun Choi
- Department of Biochemistry, College of Oriental Medicine, Dong-Eui University, Busan, Korea
| | - Sung-Kwon Moon
- Department of Food Science and Technology, Chung-Ang University, Ansung, Korea
| | | | - Xuan-Mei Piao
- Department of Urology, Chungbuk National University College of Medicine, Cheongju, Korea.
| | - Seok Joong Yun
- Department of Urology, Chungbuk National University Hospital, Cheongju, Korea
- Department of Urology, Chungbuk National University College of Medicine, Cheongju, Korea.
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Kang M, Moon S, Kim B, Kim SH, Kim J, Park H, Choi H, Kim S, Park M. Detection of thiocyanate in postmortem blood of a fatal potassium thiocyanate-poisoning patient using gas chromatography-mass spectrometry. J Anal Toxicol 2023; 47:867-870. [PMID: 37756625 DOI: 10.1093/jat/bkad075] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 08/21/2023] [Accepted: 09/20/2023] [Indexed: 09/29/2023] Open
Abstract
Thiocyanate is an inorganic compound used in industrial applications. Here, we report a case of suicidal death due to acute thiocyanate overdose. A 44-year-old man who consumed an unknown amount of thiocyanate solution was transferred to the emergency room and died 2 h after admission. An autopsy was performed 2 days after death. General toxicological analysis of blood using gas chromatography-mass spectrometry (GC-MS) and liquid chromatography-tandem mass spectrometry found no drug or alcohol. Quantification using GC-MS post-derivatization with pentafluorobenzyl bromide revealed 2,290 and 1,920 mg/L of thiocyanate in the heart and femoral blood samples, respectively. Thus, the cause of death was attributed to thiocyanate overdose. This study provides useful information for the interpretation of thiocyanate-related fatalities.
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Affiliation(s)
- Minji Kang
- Forensic Toxicology and Chemistry Division, Seoul Institute of National Forensic Service, 139, Jiyang-ro, Yangcheon-gu, Seoul 08036, Republic of Korea
| | - Sungmin Moon
- Forensic Toxicology and Chemistry Division, Seoul Institute of National Forensic Service, 139, Jiyang-ro, Yangcheon-gu, Seoul 08036, Republic of Korea
| | - Byungjoo Kim
- Forensic Toxicology and Chemistry Division, Seoul Institute of National Forensic Service, 139, Jiyang-ro, Yangcheon-gu, Seoul 08036, Republic of Korea
| | - So-Hyun Kim
- Forensic Toxicology and Chemistry Division, Seoul Institute of National Forensic Service, 139, Jiyang-ro, Yangcheon-gu, Seoul 08036, Republic of Korea
| | - Junghyun Kim
- Forensic Toxicology and Chemistry Division, Seoul Institute of National Forensic Service, 139, Jiyang-ro, Yangcheon-gu, Seoul 08036, Republic of Korea
| | - Heejin Park
- Forensic Toxicology and Chemistry Division, Seoul Institute of National Forensic Service, 139, Jiyang-ro, Yangcheon-gu, Seoul 08036, Republic of Korea
| | - Hyeyoung Choi
- Forensic Toxicology and Chemistry Division, Seoul Institute of National Forensic Service, 139, Jiyang-ro, Yangcheon-gu, Seoul 08036, Republic of Korea
| | - Seongho Kim
- Forensic Toxicology and Chemistry Division, Seoul Institute of National Forensic Service, 139, Jiyang-ro, Yangcheon-gu, Seoul 08036, Republic of Korea
| | - Meejung Park
- Forensic Toxicology and Chemistry Division, Seoul Institute of National Forensic Service, 139, Jiyang-ro, Yangcheon-gu, Seoul 08036, Republic of Korea
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Watkins LV, Dunstall H, Musicha C, Lawthom C, John K, Bright C, Richings C, Harding K, Moon S, Pape SE, Winterhalder R, Allgar V, Thomas RH, McLean B, Laugharne R, Shankar R. Rapid switching from levetiracetam to brivaracetam in pharmaco-resistant epilepsy in people with and without intellectual disabilities: a naturalistic case control study. J Neurol 2023; 270:5889-5902. [PMID: 37610448 DOI: 10.1007/s00415-023-11959-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 08/17/2023] [Accepted: 08/18/2023] [Indexed: 08/24/2023]
Abstract
BACKGROUND Approximately one quarter of people with an intellectual disability (PwID) have epilepsy of whom nearly three-quarters are pharmaco-resistant. There are higher reported neuropsychiatric side-effects to anti-seizure medication (ASM) in this group. Levetiracetam (LEV) is a first-line ASM with a stronger association with neuropsychiatric symptoms for PwID than other ASMs. Brivaracetam (BRV) is a newer ASM. Recent studies suggest a beneficial effect of swapping people who experience neuropsychiatric events with LEV to BRV. However, there is limited evidence of this for PwID. This evaluation analyses real world outcomes of LEV to BRV swap for PwID compared to those without ID. METHODS We performed a multicentre, retrospective review of clinical records. Demographic, clinical characteristics and reported adverse events of patients switched from LEV to BRV (2016-2020) were recorded at 3 months pre and 6- and 12-month post-BRV initiation. Outcomes were compared between PwID and those without and summarised using cross-tabulations and logistic regression models. A Bonferroni correction was applied. RESULTS Of 77 participants, 46 had ID and 52% had a past psychiatric illness. 71% participants switched overnight from LEV to BRV. Seizure reduction of > 50% was seen in 40% patients. Psychiatric illness history was predictive of having neuropsychiatric side-effects with LEV but not BRV (p = 0.001). There was no significant difference for any primary outcomes between PwID versus without ID. CONCLUSIONS Switching from LEV to BRV appears as well tolerated and efficacious in PwID as those without ID with over 90% still on BRV after 12 months.
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Affiliation(s)
- L V Watkins
- Swansea Bay University Health Board, Port Talbot, UK
- University of South Wales, Aberdare, UK
- University of Plymouth, Plymouth, UK
| | - H Dunstall
- Swansea Bay University Health Board, Port Talbot, UK
| | - C Musicha
- University of Plymouth, Plymouth, UK
| | - C Lawthom
- Aneurin Bevan University Health Board, Newport, UK
- Swansea University, Swansea, UK
| | - K John
- Aneurin Bevan University Health Board, Newport, UK
| | - C Bright
- University of South Wales, Aberdare, UK
- Aneurin Bevan University Health Board, Newport, UK
| | - C Richings
- Aneurin Bevan University Health Board, Newport, UK
| | - K Harding
- Aneurin Bevan University Health Board, Newport, UK
| | - S Moon
- Swansea Bay University Health Board, Port Talbot, UK
| | - S E Pape
- Oxleas NHS Foundation Trust, Kent, UK
| | | | - V Allgar
- University of Plymouth, Plymouth, UK
| | - R H Thomas
- Newcastle University, Newcastle upon Tyne, UK
- The Newcastle Upon Tyne Hospital NHS Foundation Trust, Newcastle upon Tyne, UK
| | - B McLean
- University of Plymouth, Plymouth, UK
| | | | - Rohit Shankar
- University of Plymouth, Plymouth, UK.
- Cornwall Partnership NHS Foundation Trust, Threemilestone Industrial Estate, Truro, TR4 9LD, UK.
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Han S, Moon S, Chung YW, Ryu JH. NADPH Oxidase 4-mediated Alveolar Macrophage Recruitment to Lung Attenuates Neutrophilic Inflammation in Staphylococcus aureus Infection. Immune Netw 2023; 23:e42. [PMID: 37970233 PMCID: PMC10643333 DOI: 10.4110/in.2023.23.e42] [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: 04/14/2023] [Revised: 09/25/2023] [Accepted: 10/22/2023] [Indexed: 11/17/2023] Open
Abstract
When the lungs are infected with bacteria, alveolar macrophages (AMs) are recruited to the site and play a crucial role in protecting the host by reducing excessive lung inflammation. However, the regulatory mechanisms that trigger the recruitment of AMs to lung alveoli during an infection are still not fully understood. In this study, we identified a critical role for NADPH oxidase 4 (NOX4) in the recruitment of AMs during Staphylococcus aureus lung infection. We found that NOX4 knockout (KO) mice showed decreased recruitment of AMs and increased lung neutrophils and injury in response to S. aureus infection compared to wild-type (WT) mice. Interestingly, the burden of S. aureus in the lungs was not different between NOX4 KO and WT mice. Furthermore, we observed that depletion of AMs in WT mice during S. aureus infection increased the number of neutrophils and lung injury to a similar level as that observed in NOX4 KO mice. Additionally, we found that expression of intercellular adhesion molecule-1 (ICAM1) in NOX4 KO mice-derived lung endothelial cells was lower than that in WT mice-derived endothelial cells. Therefore, we conclude that NOX4 plays a crucial role in inducing the recruitment of AMs by controlling ICAM1 expression in lung endothelial cells, which is responsible for resolving lung inflammation during acute S. aureus infection.
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Affiliation(s)
- Seunghan Han
- Department of Biomedical Sciences, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Sungmin Moon
- Department of Biomedical Sciences, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Youn Wook Chung
- Department of Biomedical Sciences, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Ji-Hwan Ryu
- Department of Biomedical Sciences, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul 03722, Korea
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Oh J, Kim J, Moon S, Lee Y, Park D, Joo J, Shon YM, Park SM, Jeong U. Subcutaneous mechano-electrocardiogram (MECG) sensor for complementary cardiac diagnosis. Biosens Bioelectron 2023; 236:115443. [PMID: 37276637 DOI: 10.1016/j.bios.2023.115443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 05/30/2023] [Accepted: 05/30/2023] [Indexed: 06/07/2023]
Abstract
Since the heart pumps out the blood through the excitation-contraction coupling, simultaneous monitoring of the electrical and mechanical characteristics is beneficial for comprehensive diagnosis of cardiac disorders. Currently, these characteristics are monitored separately with electrocardiogram (ECG) and medical imaging techniques. This work presents a fully implantable device named mechano-electrocardiogram (MECG) sensor that can measure mechanocardiogram (MCG) and ECG together. The key to the success is fabrication of permeable electrodes on a single low-modulus porous nanofiber mat, which helps immediate adhesion of the sensor on the tissue. A strain-insensitive electrode is used as the ECG electrode and a strain-sensitive electrode is used for MCG. The MECG device is implanted subcutaneously in the skin above the heart of the rat. Through a vasopressor (phenylephrine) injection test, the MECG signals indicate that the MCG amplitude is related with blood pressure and the ECG peak interval is more related with heart rate. These results confirm that the MECG device is clinically meaningful for continuous and comprehensive monitoring of the electrical and mechanical characteristics of the heart.
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Affiliation(s)
- Joosung Oh
- Department of Materials Science and Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, South Korea
| | - Junho Kim
- School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, South Korea
| | - Sungmin Moon
- Department of Materials Science and Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, South Korea
| | - YoungHyun Lee
- Department of Materials Science and Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, South Korea
| | - Daejong Park
- Department of Convergernce IT Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, South Korea
| | - Jaesoon Joo
- Biomedical Engineering Research Center, Samsung Medical Center, School of Medicine, Sungkyunkwan University, Seoul, 06531, South Korea
| | - Young-Min Shon
- Biomedical Engineering Research Center, Samsung Medical Center, School of Medicine, Sungkyunkwan University, Seoul, 06531, South Korea
| | - Sung-Min Park
- Department of Convergernce IT Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, South Korea.
| | - Unyong Jeong
- Department of Materials Science and Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, South Korea.
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Bae S, Jang J, Kook Y, Baek S, Kim J, Kim M, Lee S, Moon S, Kim J, Ahn S, Jeong J. P118 Efficacy of platinum-based neoadjuvant chemotherapy in early triple-negative breast cancer according to germline BRCA mutation. Breast 2023. [DOI: 10.1016/s0960-9776(23)00235-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/15/2023] Open
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10
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Jang J, Kook Y, Baek S, Kim J, Kim M, Lee S, Moon S, Kim J, Bae S, Ahn S, Jeong J. P217 Upstaging and lymph node metastasis rate in patients with ductal carcinoma in situ who received mastectomy regarding the necessary of sentinel lymph node biopsy. Breast 2023. [DOI: 10.1016/s0960-9776(23)00335-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023] Open
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11
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Cho HJ, Chung YW, Moon S, Seo JH, Kang M, Nam JS, Lee SN, Kim CH, Choi AMK, Yoon JH. IL-4 drastically decreases deuterosomal and multiciliated cells via alteration in progenitor cell differentiation. Allergy 2023. [PMID: 36883528 DOI: 10.1111/all.15705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 01/11/2023] [Accepted: 01/26/2023] [Indexed: 03/09/2023]
Abstract
BACKGROUND Allergic inflammation affects the epithelial cell populations resulting in goblet cell hyperplasia and decreased ciliated cells. Recent advances in single-cell RNA sequencing (scRNAseq) have enabled the identification of new cell subtypes and genomic features of single cells. In this study, we aimed to investigate the effect of allergic inflammation in nasal epithelial cell transcriptomes at the single-cell level. METHODS We performed scRNAseq in cultured primary human nasal epithelial (HNE) cells and in vivo nasal epithelium. The transcriptomic features and epithelial cell subtypes were determined under IL-4 stimulation, and cell-specific marker genes and proteins were identified. RESULTS We confirmed that cultured HNE cells were similar to in vivo epithelial cells through scRNAseq. Cell-specific marker genes were utilized to cluster the cell subtypes, and FOXJ1+ -ciliated cells were sub-classified into multiciliated and deuterosomal cells. PLK4 and CDC20B were specific for deuterosomal cells, and SNTN, CPASL, and GSTA2 were specific for multiciliated cells. IL-4 altered the proportions of cell subtypes, resulting in a decrease in multiciliated cells and loss of deuterosomal cells. The trajectory analysis revealed deuterosomal cells as precursor cells of multiciliated cells and deuterosomal cells function as a bridge between club and multiciliated cells. A decrease in deuterosomal cell marker genes was observed in nasal tissue samples with type 2 inflammation. CONCLUSION The effects of IL-4 appear to be mediated through the loss of the deuterosomal population, resulting in the reduction in multiciliated cells. This study also newly suggests cell-specific markers that might be pivotal for investigating respiratory inflammatory diseases.
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Affiliation(s)
- Hyung-Ju Cho
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, South Korea.,The Airway Mucus Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - Youn Wook Chung
- Global Research Laboratory for Allergic Airway Disease, Yonsei University College of Medicine, Seoul, South Korea
| | - Sungmin Moon
- Global Research Laboratory for Allergic Airway Disease, Yonsei University College of Medicine, Seoul, South Korea
| | - Ju Hee Seo
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, South Korea
| | - Miran Kang
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, South Korea
| | - Jae Sung Nam
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, South Korea
| | - Sang-Nam Lee
- Global Research Laboratory for Allergic Airway Disease, Yonsei University College of Medicine, Seoul, South Korea
| | - Chang-Hoon Kim
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, South Korea.,The Airway Mucus Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - Augustine M K Choi
- Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medical College and New York-Presbyterian Hospital, New York, New York, USA
| | - Joo-Heon Yoon
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, South Korea.,The Airway Mucus Institute, Yonsei University College of Medicine, Seoul, South Korea.,Global Research Laboratory for Allergic Airway Disease, Yonsei University College of Medicine, Seoul, South Korea
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12
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Han K, Kim S, Liaw V, Kim M, Kwon J, Moon S, Kim G, Won J, Park J, Kim H. Abstract No. 145 Resorbable Gelatin Microspheres versus Tris-Acryl Microspheres: Randomized Controlled Trial Comparing Pain, Inflammatory Response and Embolic Effect after Uterine Artery Embolization for Symptomatic Fibroids. J Vasc Interv Radiol 2023. [DOI: 10.1016/j.jvir.2022.12.198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023] Open
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13
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Kim J, Park JH, Moon S, Kim S, Song J, Ahn S, Cho H. 46 The Effect of Mechanical Chest Compression Device on Survival After Out-of-Hospital Cardiac Arrest According to Patient Transport Interval: A Multi-center Observational Study. Ann Emerg Med 2022. [DOI: 10.1016/j.annemergmed.2022.08.069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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14
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Song J, Kim SJ, Lee S, Lim H, Ahn S, Kim J, Park J, Cho HJ, Moon S, Jeon ET. 44 Prediction of Mortality Among Patients With Isolated Traumatic Brain Injury Using Machine Learning Models in Asian Countries: An International Multicenter Cohort Study. Ann Emerg Med 2022. [DOI: 10.1016/j.annemergmed.2022.08.067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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15
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Jin BY, Song J, Kim J, Park JH, Kim S, Cho H, Moon S, Kim DH, Ahn S. 127 Effect of Metformin on Survival Outcomes in In-Hospital Cardiac Arrest Patients With Diabetes. Ann Emerg Med 2022. [DOI: 10.1016/j.annemergmed.2022.08.151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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16
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Park KW, Kim J, Seo J, Moon S, Jeong K, An K. Entropic comparison of Landau-Zener and Demkov interactions in the phase space of a quadrupole billiard. Chaos 2022; 32:103101. [PMID: 36319274 DOI: 10.1063/5.0101495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 09/05/2022] [Indexed: 06/16/2023]
Abstract
We investigate two types of avoided crossings in a chaotic billiard within the framework of information theory. The Shannon entropy in the phase space for the Landau-Zener interaction increases as the center of the avoided crossing is approached, whereas for the Demkov interaction, the Shannon entropy decreases as the center of avoided crossing is passed by with an increase in the deformation parameter. This feature can provide a new indicator for scar formation. In addition, it is found that the Fisher information of the Landau-Zener interaction is significantly larger than that of the Demkov interaction.
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Affiliation(s)
- K-W Park
- Research Institute of Mathematics, Seoul National University, Seoul 08826, South Korea
| | - J Kim
- Department of Physics and Astronomy and Institute of Applied Physics, Seoul National University, Seoul 08826, South Korea
| | - J Seo
- Department of Physics and Astronomy and Institute of Applied Physics, Seoul National University, Seoul 08826, South Korea
| | - S Moon
- Faculty of Liberal Education, Seoul National University, Seoul 08826, South Korea
| | - K Jeong
- Research Institute of Mathematics, Seoul National University, Seoul 08826, South Korea
| | - K An
- Department of Physics and Astronomy and Institute of Applied Physics, Seoul National University, Seoul 08826, South Korea
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17
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Sim JR, Shin DH, Park PG, Park SH, Bae JY, Lee Y, Kang DY, Kim YJ, Aum S, Noh SH, Hwang SJ, Cha HR, Kim CB, Ko SH, Park S, Jeon D, Cho S, Lee GE, Kim J, Moon YH, Kim JO, Nam JS, Kim CH, Moon S, Chung YW, Park MS, Ryu JH, Namkung W, Lee JM, Lee MG. Amelioration of SARS-CoV-2 infection by ANO6 phospholipid scramblase inhibition. Cell Rep 2022; 40:111117. [PMID: 35839776 PMCID: PMC9250890 DOI: 10.1016/j.celrep.2022.111117] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 05/27/2022] [Accepted: 06/29/2022] [Indexed: 11/30/2022] Open
Abstract
As an enveloped virus, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) delivers its viral genome into host cells via fusion of the viral and cell membranes. Here, we show that ANO6/TMEM16F-mediated cell surface exposure of phosphatidylserine is critical for SARS-CoV-2 entry and that ANO6-selective inhibitors are effective against SARS-CoV-2 infections. Application of the SARS-CoV-2 Spike pseudotyped virus (SARS2-PsV) evokes a cytosolic Ca2+ elevation and ANO6-dependent phosphatidylserine externalization in ACE2/TMPRSS2-positive mammalian cells. A high-throughput screening of drug-like chemical libraries identifies three different structural classes of chemicals showing ANO6 inhibitory effects. Among them, A6-001 displays the highest potency and ANO6 selectivity and it inhibits the single-round infection of SARS2-PsV in ACE2/TMPRSS2-positive HEK 293T cells. More importantly, A6-001 strongly inhibits authentic SARS-CoV-2-induced phosphatidylserine scrambling and SARS-CoV-2 viral replications in Vero, Calu-3, and primarily cultured human nasal epithelial cells. These results provide mechanistic insights into the viral entry process and offer a potential target for pharmacological intervention to protect against coronavirus disease 2019 (COVID-19).
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Affiliation(s)
- Ju-Ri Sim
- Department of Pharmacology, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Dong Hoon Shin
- Department of Pharmacology, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Pil-Gu Park
- Department of Microbiology and Immunology, Institute for Immunology and Immunological Diseases, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Korea
| | - So-Hyeon Park
- College of Pharmacy and Yonsei Institute of Pharmaceutical Sciences, Yonsei University, 85 Songdogwahak-ro, Yeonsu-gu, Incheon 21983, Korea
| | - Joon-Yong Bae
- Department of Microbiology, Institute for Viral Diseases, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Youngchae Lee
- Department of Pharmacology, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Dha-Yei Kang
- Department of Pharmacology, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Ye Jin Kim
- Department of Pharmacology, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Sowon Aum
- Department of Pharmacology, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Shin Hye Noh
- Department of Pharmacology, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Korea; Severance Biomedical Science Institute, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Su Jin Hwang
- Department of Microbiology and Immunology, Institute for Immunology and Immunological Diseases, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Hye-Ran Cha
- Department of Microbiology and Immunology, Institute for Immunology and Immunological Diseases, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Cheong Bi Kim
- Department of Microbiology and Immunology, Institute for Immunology and Immunological Diseases, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Si Hwan Ko
- Department of Microbiology and Immunology, Institute for Immunology and Immunological Diseases, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Sunghoon Park
- Department of Microbiology and Immunology, Institute for Immunology and Immunological Diseases, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Dongkyu Jeon
- College of Pharmacy and Yonsei Institute of Pharmaceutical Sciences, Yonsei University, 85 Songdogwahak-ro, Yeonsu-gu, Incheon 21983, Korea
| | - Sungwoo Cho
- College of Pharmacy and Yonsei Institute of Pharmaceutical Sciences, Yonsei University, 85 Songdogwahak-ro, Yeonsu-gu, Incheon 21983, Korea
| | - Gee Eun Lee
- Department of Microbiology, Institute for Viral Diseases, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Jeonghun Kim
- Department of Microbiology, Institute for Viral Diseases, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Young-Hye Moon
- Science Unit, International Vaccine Institute, Seoul 08826, Korea
| | - Jae-Ouk Kim
- Science Unit, International Vaccine Institute, Seoul 08826, Korea
| | - Jae-Sung Nam
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Chang-Hoon Kim
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Sungmin Moon
- Severance Biomedical Science Institute, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Youn Wook Chung
- Severance Biomedical Science Institute, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Man-Seong Park
- Department of Microbiology, Institute for Viral Diseases, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Ji-Hwan Ryu
- Severance Biomedical Science Institute, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Korea.
| | - Wan Namkung
- College of Pharmacy and Yonsei Institute of Pharmaceutical Sciences, Yonsei University, 85 Songdogwahak-ro, Yeonsu-gu, Incheon 21983, Korea.
| | - Jae Myun Lee
- Department of Microbiology and Immunology, Institute for Immunology and Immunological Diseases, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Korea.
| | - Min Goo Lee
- Department of Pharmacology, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Korea; Severance Biomedical Science Institute, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Korea.
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18
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Oh J, Jang SG, Moon S, Kim J, Park HK, Kim HS, Park S, Jeong U. Air-Permeable Waterproofing Electrocardiogram Patch to Monitor Full-Day Activities for Multiple Days. Adv Healthc Mater 2022; 11:e2102703. [PMID: 35285162 DOI: 10.1002/adhm.202102703] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 02/14/2022] [Indexed: 11/10/2022]
Abstract
On-skin healthcare patch-type devices have great technological challenges in monitoring full-day activities and wearing for multiple days without detachment. These challenges can be overcome when the sensor is air permeable but waterproof. This study presents a light-weight, highly stable, and stretchable Au electrode that is fabricated by sputtering on an imidized nanofiber mat. The contact surface of the electrode is hydro-wetting and the outer surface of the electrode is hydrophobic, so the porous electrode simultaneously has excellent sweat permeability and waterproofing capabilities. The electrode is applied to the electrocardiogram sensor for monitoring the cardiac signals for five consecutive days without detaching while doing various full-day activities such as relaxing, exercising, showering, and sleeping. This study suggests a modular setup of the electrodes and the cardiac signal processing unit for activating the device when cardiac monitoring is required.
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Affiliation(s)
- Joosung Oh
- Department of Materials Science and Engineering Pohang University of Science and Technology 77 Cheongam‐Ro Nam‐Gu Pohang 37673 Korea
| | - Seok Geun Jang
- Department of Electrical Engineering Pohang University of Science Technology 77 Cheongam‐Ro Nam‐Gu Pohang 37673 Korea
| | - Sungmin Moon
- Department of Materials Science and Engineering Pohang University of Science and Technology 77 Cheongam‐Ro Nam‐Gu Pohang 37673 Korea
| | - Junho Kim
- School of Interdisciplinary Bioscience and Bioengineering Pohang University of Science Technology 77 Cheongam‐Ro Nam‐Gu Pohang 37673 Korea
| | - Hyung Keun Park
- Department of Materials Science and Engineering Pohang University of Science and Technology 77 Cheongam‐Ro Nam‐Gu Pohang 37673 Korea
| | - Hyoung Seop Kim
- Department of Materials Science and Engineering Pohang University of Science and Technology 77 Cheongam‐Ro Nam‐Gu Pohang 37673 Korea
| | - Sung‐Min Park
- Department of convergence IT engineering Electrical Engineering and Mechanical Engineering Pohang University of Science Technology 77 Cheongam‐Ro Nam‐Gu Pohang 37673 Korea
| | - Unyong Jeong
- Department of Materials Science and Engineering Pohang University of Science and Technology 77 Cheongam‐Ro Nam‐Gu Pohang 37673 Korea
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19
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Cho S, Moon S, Park S, Sahyun P, Kwon O, Lee Y. Nocturia as a risk factor of all-cause and cardiovascular disease mortality: Data from the national health and nutrition examination survey. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00919-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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20
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Moon S, Jackson MA, Doherty JH, Wenderoth MP. Evidence-based teaching practices correlate with increased exam performance in biology. PLoS One 2021; 16:e0260789. [PMID: 34847190 PMCID: PMC8631643 DOI: 10.1371/journal.pone.0260789] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 11/16/2021] [Indexed: 12/05/2022] Open
Abstract
Evidence-based teaching practices are associated with improved student academic performance. However, these practices encompass a wide range of activities and determining which type, intensity or duration of activity is effective at improving student exam performance has been elusive. To address this shortcoming, we used a previously validated classroom observation tool, Practical Observation Rubric to Assess Active Learning (PORTAAL) to measure the presence, intensity, and duration of evidence-based teaching practices in a retrospective study of upper and lower division biology courses. We determined the cognitive challenge of exams by categorizing all exam questions obtained from the courses using Bloom’s Taxonomy of Cognitive Domains. We used structural equation modeling to correlate the PORTAAL practices with exam performance while controlling for cognitive challenge of exams, students’ GPA at start of the term, and students’ demographic factors. Small group activities, randomly calling on students or groups to answer questions, explaining alternative answers, and total time students were thinking, working with others or answering questions had positive correlations with exam performance. On exams at higher Bloom’s levels, students explaining the reasoning underlying their answers, students working alone, and receiving positive feedback from the instructor also correlated with increased exam performance. Our study is the first to demonstrate a correlation between the intensity or duration of evidence-based PORTAAL practices and student exam performance while controlling for Bloom’s level of exams, as well as looking more specifically at which practices correlate with performance on exams at low and high Bloom’s levels. This level of detail will provide valuable insights for faculty as they prioritize changes to their teaching. As we found that multiple PORTAAL practices had a positive association with exam performance, it may be encouraging for instructors to realize that there are many ways to benefit students’ learning by incorporating these evidence-based teaching practices.
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Affiliation(s)
- Sungmin Moon
- Department of Biology, University of Washington, Seattle, Washington, United States of America
| | - Mallory A. Jackson
- Department of Biology, University of Washington, Seattle, Washington, United States of America
| | - Jennifer H. Doherty
- Department of Biology, University of Washington, Seattle, Washington, United States of America
| | - Mary Pat Wenderoth
- Department of Biology, University of Washington, Seattle, Washington, United States of America
- * E-mail:
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21
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Park G, Giri A, Kumar M, Moon S, Pal M, Kim DW, Jeong U. Pseudoequilibrium between Etching and Selective Grain Growth: Chemical Conversion of a Randomly Oriented Au Film into a (111)-Oriented Ultrathin Au Film. Nano Lett 2021; 21:9772-9779. [PMID: 34766778 DOI: 10.1021/acs.nanolett.1c03712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Metal thin films with a specific orientation play vital roles in electronics, catalysts, and epitaxial templates. Although oriented metal films have been produced in the recent years, ultrathin oriented metal films (<10 nm) have not been achieved owing to the interfacial instability of the ultrathin films during the thermal annealing process. This study investigates chemical conversion of randomly oriented multigrain Au ultrathin films into (111)-oriented Au ultrathin films. A novel chemical process, termed pseudoequilibrium of etching and selective grain growth, is presented for the chemical conversion by using a quaternary ammonium halide. The reaction variables (reaction time, reaction temperature, species of halide ions) for the chemical conversion process are systematically investigated. This study reveals the in-plane rotational degeneracy in the Au(111) thin film epitaxially grown on a Si(111) substrate. The chemical process can be applied to a broad range of thicknesses from 9 to 100 nm.
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Affiliation(s)
- Gyeongbae Park
- Department of Materials Science and Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang 790-784, Korea
| | - Anupam Giri
- Department of Materials Science and Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang 790-784, Korea
| | - Manish Kumar
- Pohang Accelerator Laboratory (PAL), Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang 790-784, Korea
| | - Sungmin Moon
- Department of Materials Science and Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang 790-784, Korea
| | - Monalisa Pal
- Department of Materials Science and Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang 790-784, Korea
| | - Dong Wook Kim
- Department of Materials Science and Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang 790-784, Korea
| | - Unyong Jeong
- Department of Materials Science and Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang 790-784, Korea
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Cho CK, Park HJ, Kang P, Moon S, Lee YJ, Bae JW, Jang CG, Lee SY. Physiologically based pharmacokinetic (PBPK) modeling of meloxicam in different CYP2C9 genotypes. Arch Pharm Res 2021; 44:1076-1090. [PMID: 34807366 DOI: 10.1007/s12272-021-01361-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 11/03/2021] [Indexed: 12/26/2022]
Abstract
Meloxicam, a non-steroidal anti-inflammatory drug, is used for the treatment of rheumatoid arthritis and osteoarthritis. Cytochrome P450 (CYP) 2C9 and CYP3A4 are major and minor enzymes involved in the metabolism of meloxicam. Impaired enzyme activity of CYP2C9 variants increases the plasma exposures of meloxicam and the risk of adverse events. The objective of our study is to develop and validate the physiologically based pharmacokinetic (PBPK) model of meloxicam related to CYP2C9 genetic polymorphism using the PK-Sim® software. In vitro kcat of CYP2C9 was optimized in different CYP2C9 genotypes. The demographic and pharmacokinetic dataset for the development of the PBPK model was extracted from two previous clinical pharmacokinetic studies. Thirty-one clinical datasets, representing different dose regimens and demographic characteristics, were utilized to validate the PBPK model. The shapes of simulated plasma concentration-time profiles in each CYP2C9 genotype were visually similar to observed profiles. The predicted exposures (AUCinf) of meloxicam in CYP2C9*1/*3, CYP2C9*1/*13, and CYP2C9*3/*3 genotypes were increased by 1.77-, 2.91-, and 8.35-fold compared to CYP2C9*1/*1 genotype, respectively. In all datasets for the development and validations, fold errors between predicted and observed pharmacokinetic parameters were within the two-fold error criteria. As a result, the PBPK model was appropriately established and properly described the pharmacokinetics of meloxicam in different CYP2C9 genotypes. This study is expected to contribute to reducing the risk of adverse events of meloxicam through optimization of meloxicam dosing in different CYP2C9 genotypes.
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Affiliation(s)
- Chang-Keun Cho
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Hye-Jung Park
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Pureum Kang
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Sungmin Moon
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Yun Jeong Lee
- College of Pharmacy, Dankook University, Cheonan, 31116, Republic of Korea
| | - Jung-Woo Bae
- College of Pharmacy, Keimyung University, Daegu, 42601, Republic of Korea.
| | - Choon-Gon Jang
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Seok-Yong Lee
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea.
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Behrouzi R, Moon S, Eaton D. 327P Predictors of progression-free survival in patients with metastatic breast cancer receiving palbociclib with letrozole. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Yum H, Jeong S, Jang M, Moon S, Kang M, Kim B, Kim D, Choe S, Yang W, Kim J, Han SB. Fast and reliable analysis of veterinary metomidate and etomidate in human blood samples by liquid chromatography-tandem mass spectrometry (LC-MS/MS) in a postmortem case. J Forensic Sci 2021; 66:2532-2538. [PMID: 34405913 DOI: 10.1111/1556-4029.14823] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 07/13/2021] [Accepted: 07/19/2021] [Indexed: 11/30/2022]
Abstract
Metomidate and etomidate belong to the non-barbiturate imidazole family of sedative-hypnotics and elicit little analgesic action when used alone. Metomidate, in particular, has little analgesic activity in humans and is, therefore, used for veterinary purposes. In 2019, a Korean woman in her twenties was found unconscious in a motel bath and eventually died. Etomidate, alprazolam, escitalopram, and metomidate were detected in the postmortem specimens. To our knowledge, this is the first case of human metomidate abuse reported in the Republic of Korea. In this research, a simple and reliable method was developed for the analysis of metomidate and etomidate in human blood samples using liquid chromatography-tandem mass spectrometry (LC-MS/MS). Blood samples were deproteinized with acetonitrile, filtered, and analyzed by LC-MS/MS. Linear calibration curves were obtained with six concentrations ranging from 1 to 50 ng/ml for metomidate and 10 to 500 ng/ml for etomidate. The method was validated by assessing the selectivity, linearity, limit of detection (LOD), limit of quantitation (LOQ), intra- and inter-day precision and accuracy, matrix effect, and stability and successfully applied to the analysis of metomidate and etomidate in human blood samples. In a postmortem case, the concentrations of metomidate and etomidate were found to be 8 and 110 ng/ml in femoral blood and 6 and 210 ng/ml in cardiac blood, respectively.
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Affiliation(s)
- Hyesun Yum
- Forensic Toxicology and Chemistry Division, Seoul Institute, National Forensic Service, Seoul, South Korea.,Department of Pharmaceutical Analysis, College of Pharmacy, Chung-Ang University, Seoul, South Korea
| | - Sujin Jeong
- Forensic Toxicology and Chemistry Division, Seoul Institute, National Forensic Service, Seoul, South Korea
| | - Moonhee Jang
- Forensic Toxicology and Chemistry Division, Seoul Institute, National Forensic Service, Seoul, South Korea
| | - Sungmin Moon
- Forensic Toxicology and Chemistry Division, Seoul Institute, National Forensic Service, Seoul, South Korea
| | - Minji Kang
- Forensic Toxicology and Chemistry Division, Seoul Institute, National Forensic Service, Seoul, South Korea
| | - Byungjoo Kim
- Forensic Toxicology and Chemistry Division, Seoul Institute, National Forensic Service, Seoul, South Korea
| | - Dongwoo Kim
- Forensic Toxicology and Chemistry Division, Seoul Institute, National Forensic Service, Seoul, South Korea
| | - Sanggil Choe
- Forensic Toxicology and Chemistry Division, Seoul Institute, National Forensic Service, Seoul, South Korea
| | - Wonkyung Yang
- Forensic Toxicology and Chemistry Division, Seoul Institute, National Forensic Service, Seoul, South Korea
| | - Jihyun Kim
- Forensic Toxicology and Chemistry Division, Seoul Institute, National Forensic Service, Seoul, South Korea.,Department of Pharmaceutical Analysis, College of Pharmacy, Chung-Ang University, Seoul, South Korea
| | - Sang Beom Han
- Department of Pharmaceutical Analysis, College of Pharmacy, Chung-Ang University, Seoul, South Korea
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Thiyagarajan K, Song WJ, Park H, Selvaraj V, Moon S, Oh J, Kwak MJ, Park G, Kong M, Pal M, Kwak J, Giri A, Jang JH, Park S, Jeong U. Electroactive 1T-MoS 2 Fluoroelastomer Ink for Intrinsically Stretchable Solid-State In-Plane Supercapacitors. ACS Appl Mater Interfaces 2021; 13:26870-26878. [PMID: 34085807 DOI: 10.1021/acsami.1c01463] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Full advantage of stretchable electronic devices can be taken when utilizing an intrinsically stretchable power source. High-performance stretchable supercapacitors with a simple structure and solid-state operation are good power sources for stretchable electronics. This study suggests a new type of intrinsically stretchable, printable, electroactive ink consisting of 1T-MoS2 and a fluoroelastomer (FE). The active material (1T-MoS2/FE) is made by fluorinating the metallic-phase MoS2 (1T-MoS2) nanosheets with the FE under high-power ultrasonication. The MoS2 in the 1T-MoS2/FE has unconventional crystal structures in which the stable cubic (1T) and distorted 2H structures were mixed. The printed line of the 1T-MoS2/FE on the porous stretchable Au collector electrodes is intrinsically stretchable at more than ε = 50% and has good specific capacitance (28 mF cm-2 at 0.2 mA cm-2) and energy density (3.15 mWh cm-3). The in-plane all-solid-state stretchable supercapacitor is stretchable at ε = 40% and retains its relative capacity (C/Co) by 80%. This printable device platform potentially opens up the in-plane fabrication of stretchable micro-supercapacitor devices for wearable electronic applications.
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Affiliation(s)
- Kaliannan Thiyagarajan
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-gu, Pohang, Gyeongbuk 37673, Republic of Korea
| | - Woo-Jin Song
- Department of Organic Materials Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Hyeji Park
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-gu, Pohang, Gyeongbuk 37673, Republic of Korea
| | - Veerapandian Selvaraj
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-gu, Pohang, Gyeongbuk 37673, Republic of Korea
| | - Sungmin Moon
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-gu, Pohang, Gyeongbuk 37673, Republic of Korea
| | - Joosung Oh
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-gu, Pohang, Gyeongbuk 37673, Republic of Korea
| | - Myung-Jun Kwak
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, 50 UNIST-gil, Ulsan 44919, South Korea
| | - Gyeongbae Park
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-gu, Pohang, Gyeongbuk 37673, Republic of Korea
| | - Minsik Kong
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-gu, Pohang, Gyeongbuk 37673, Republic of Korea
| | - Monalisa Pal
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-gu, Pohang, Gyeongbuk 37673, Republic of Korea
| | - Junghyeok Kwak
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-gu, Pohang, Gyeongbuk 37673, Republic of Korea
| | - Anupam Giri
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-gu, Pohang, Gyeongbuk 37673, Republic of Korea
| | - Ji-Hyun Jang
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, 50 UNIST-gil, Ulsan 44919, South Korea
| | - Soojin Park
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang 37673, Republic of Korea
| | - Unyong Jeong
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-gu, Pohang, Gyeongbuk 37673, Republic of Korea
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Moon M, Shin J, Choi K, Kang J, Rim G, Jo H, Moon S. P62.01 3D Cell Model Development for Optimizing Intrapleural Hyperthermic Chemotherapy in Advanced Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Jang M, Kim D, Yum H, Moon S, Kang M, Kim B, Park JP, Choe S. A case of fatal intoxication by ingestion of an herbicide formulation containing fluroxypyr-meptyl and triclopyr. Forensic Sci Int 2021; 320:110717. [PMID: 33578180 DOI: 10.1016/j.forsciint.2021.110717] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 01/28/2021] [Accepted: 01/30/2021] [Indexed: 10/22/2022]
Abstract
Fluroxypyr-meptyl and triclopyr are synthetic auxin-like herbicides that are used to control woody and broadleaf weeds. Herein, we report a case of fatal intoxication involving fluroxypyr-meptyl and triclopyr. A 61-year-old man was found dead at his farm with several suicide notes, and a white plastic bottle and a plastic cup with traces of white emulsion were found next to him. The plastic bottle was labeled as an herbicide formulation containing fluroxypyr-meptyl and triclopyr. Forensic toxicological screening of the stomach contents revealed the presence of fluroxypyr-meptyl, fluroxypyr and triclopyr. However, no fluroxypyr-meptyl was detected in blood owing to its rapid hydrolysis to fluroxypyr. In this study, fluroxypyr and triclopyr in blood were extracted using solid-phase extraction, and analyzed by liquid chromatography-tandem mass spectrometry. The analytical method was validated in terms of linearity, precision, accuracy, recovery and matrix effect, and the acceptable criteria were satisfied. Toxicological analysis showed that fluroxypyr and triclopyr concentrations were 19.7 μg/mL and 137.4 μg/mL in peripheral blood and 16.5 μg/mL and 147.8 μg/mL in heart blood, respectively. Based on these toxicological results and autopsy findings, the cause of death was determined to be acute fatal intoxication by ingestion of the pesticide containing fluroxypyr-meptyl and triclopyr. This is the first report of the determination of fluroxypyr and triclopyr in a fatal intoxication case.
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Affiliation(s)
- Moonhee Jang
- National Forensic Service, 139 Jiyang-ro, Yangcheon-Gu, Seoul 08036, Republic of Korea
| | - Dongwoo Kim
- National Forensic Service, 139 Jiyang-ro, Yangcheon-Gu, Seoul 08036, Republic of Korea
| | - Hyesun Yum
- National Forensic Service, 139 Jiyang-ro, Yangcheon-Gu, Seoul 08036, Republic of Korea
| | - Sungmin Moon
- National Forensic Service, 139 Jiyang-ro, Yangcheon-Gu, Seoul 08036, Republic of Korea
| | - Minji Kang
- National Forensic Service, 139 Jiyang-ro, Yangcheon-Gu, Seoul 08036, Republic of Korea
| | - Byungjoo Kim
- National Forensic Service, 139 Jiyang-ro, Yangcheon-Gu, Seoul 08036, Republic of Korea
| | - Jong-Pil Park
- Department of Forensic Medicine, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Sanggil Choe
- National Forensic Service, 139 Jiyang-ro, Yangcheon-Gu, Seoul 08036, Republic of Korea.
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Goriaev A, Wauters T, Möller S, Brakel R, Brezinsek S, Buermans J, Crombé K, Dinklage A, Habrichs R, Höschen D, Krause M, Kovtun Y, López-Rodríguez D, Louche F, Moon S, Nicolai D, Thomas J, Ragona R, Rubel M, Rüttgers T, Petersson P, Brunsell P, Linsmeier C, Van Schoor M. The upgraded TOMAS device: A toroidal plasma facility for wall conditioning, plasma production, and plasma-surface interaction studies. Rev Sci Instrum 2021; 92:023506. [PMID: 33648119 DOI: 10.1063/5.0033229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 01/12/2021] [Indexed: 06/12/2023]
Abstract
The Toroidal Magnetized System device has been significantly upgraded to enable development of various wall conditioning techniques, including methods based on ion and electron cyclotron (IC/EC) range of frequency plasmas, and to complement plasma-wall interaction research in tokamaks and stellarators. The toroidal magnetic field generated by 16 coils can reach its maximum of 125 mT on the toroidal axis. The EC system is operated at 2.45 GHz with up to 6 kW forward power. The IC system can couple up to 6 kW in the frequency range of 10 MHz-50 MHz. The direct current glow discharge system is based on a graphite anode with a maximum voltage of 1.5 kV and a current of 6 A. A load-lock system with a vertical manipulator allows exposure of material samples. A number of diagnostics have been installed: single- and triple-pin Langmuir probes for radial plasma profiles, a time-of-flight neutral particle analyzer capable of detecting neutrals in the energy range of 10 eV-1000 eV, and a quadrupole mass spectrometer and video systems for plasma imaging. The majority of systems and diagnostics are controlled by the Siemens SIMATIC S7 system, which also provides safety interlocks.
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Affiliation(s)
- A Goriaev
- Laboratory for Plasma Physics, LPP-ERM/KMS, Trilateral Euregio Cluster (TEC) Partner, Brussels, Belgium
| | - T Wauters
- Laboratory for Plasma Physics, LPP-ERM/KMS, Trilateral Euregio Cluster (TEC) Partner, Brussels, Belgium
| | - S Möller
- Institute for Energy and Climate Research-Plasma Physics, Forschungszentrum Jülich GmbH, Jülich, Germany
| | - R Brakel
- Max-Planck-Institute for Plasma Physics, Greifswald, Germany
| | - S Brezinsek
- Institute for Energy and Climate Research-Plasma Physics, Forschungszentrum Jülich GmbH, Jülich, Germany
| | - J Buermans
- Laboratory for Plasma Physics, LPP-ERM/KMS, Trilateral Euregio Cluster (TEC) Partner, Brussels, Belgium
| | - K Crombé
- Laboratory for Plasma Physics, LPP-ERM/KMS, Trilateral Euregio Cluster (TEC) Partner, Brussels, Belgium
| | - A Dinklage
- Max-Planck-Institute for Plasma Physics, Greifswald, Germany
| | - R Habrichs
- Institute for Energy and Climate Research-Plasma Physics, Forschungszentrum Jülich GmbH, Jülich, Germany
| | - D Höschen
- Institute for Energy and Climate Research-Plasma Physics, Forschungszentrum Jülich GmbH, Jülich, Germany
| | - M Krause
- Max-Planck-Institute for Plasma Physics, Greifswald, Germany
| | - Yu Kovtun
- Institute of Plasma Physics, NSC KIPT, Kharkov, Ukraine
| | | | - F Louche
- Laboratory for Plasma Physics, LPP-ERM/KMS, Trilateral Euregio Cluster (TEC) Partner, Brussels, Belgium
| | - S Moon
- Royal Institute of Technology (KTH), Stockholm, Sweden
| | - D Nicolai
- Institute for Energy and Climate Research-Plasma Physics, Forschungszentrum Jülich GmbH, Jülich, Germany
| | - J Thomas
- Institute for Energy and Climate Research-Plasma Physics, Forschungszentrum Jülich GmbH, Jülich, Germany
| | - R Ragona
- Laboratory for Plasma Physics, LPP-ERM/KMS, Trilateral Euregio Cluster (TEC) Partner, Brussels, Belgium
| | - M Rubel
- Royal Institute of Technology (KTH), Stockholm, Sweden
| | - T Rüttgers
- Institute for Energy and Climate Research-Plasma Physics, Forschungszentrum Jülich GmbH, Jülich, Germany
| | - P Petersson
- Royal Institute of Technology (KTH), Stockholm, Sweden
| | - P Brunsell
- Royal Institute of Technology (KTH), Stockholm, Sweden
| | - Ch Linsmeier
- Institute for Energy and Climate Research-Plasma Physics, Forschungszentrum Jülich GmbH, Jülich, Germany
| | - M Van Schoor
- Laboratory for Plasma Physics, LPP-ERM/KMS, Trilateral Euregio Cluster (TEC) Partner, Brussels, Belgium
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Dewaswala-Bhopalwala N, Chen D, Bhopalwala H, Hossein Pour S, Moon S, Bos D, Scott C, Geske J, Noseworthy P, Ommen S, Erickson B, Araoz P, Nishimura R, Ackerman M, Arruda-Olson A. Extracting hypertrophic cardiomyopathy features from cardiac magnetic resonance reports by natural language processing. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Objective
Determine if information regarding hypertrophic cardiomyopathy (HCM) can be accurately retrieved from cardiac magnetic resonance (CMR) reports using natural language processing (NLP).
Background
CMR imaging is used for diagnosis and risk stratification of HCM. Manual annotation of information from CMR is time-consuming. NLP is an artificial intelligence method for automating extraction of information from narrative text.
Methods
We identified 200 HCM patients who had CMR reports from 1998 to 2018. These patients were randomly allocated into training (100 patients with 185 CMR reports) and testing sets (100 patients with 206 reports). An NLP system with 2 tiers was developed; the first extracted information regarding HCM diagnosis while second extracted categorical or numeric concepts for HCM classification. NLP performance was compared with gold-standard manual annotation.
Results
NLP algorithms achieved very high performance across all concepts with mean positive predictive value (PPV) = 0.96. An outlier was the performance for abstracting the presence of an apical pouch from CMR reports, which had noticeably lower PPV= 0.78 which be attributed to the low number of cases with this finding.
Conclusions
The algorithms developed can be translated to clinical decision support systems to increase efficiency and contribute to improved quality of care.
Funding Acknowledgement
Type of funding source: Other. Main funding source(s): Study supported by the National Heart, Lung and Blood Institute of National Institutes of Health (K01HL124045), the Mayo Clinic Center for Clinical and Translational Science (CCaTS), and the Mayo Clinic K2R award. Content is solely the responsibility of authors and does not necessarily represent official views of the National Institutes of Health.
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Affiliation(s)
| | - D Chen
- Mayo Clinic, Rochester, United States of America
| | - H Bhopalwala
- Mayo Clinic, Rochester, United States of America
| | | | - S Moon
- Mayo Clinic, Rochester, United States of America
| | - D Bos
- Mayo Clinic, Rochester, United States of America
| | - C Scott
- Mayo Clinic, Rochester, United States of America
| | - J Geske
- Mayo Clinic, Rochester, United States of America
| | - P Noseworthy
- Mayo Clinic, Rochester, United States of America
| | - S.R Ommen
- Mayo Clinic, Rochester, United States of America
| | - B.J Erickson
- Mayo Clinic, Rochester, United States of America
| | - P.A Araoz
- Mayo Clinic, Rochester, United States of America
| | | | - M.J Ackerman
- Mayo Clinic, Rochester, United States of America
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Wenderoth MP, Scott E, Jackson M, Cerchiara J, Moon S, McFarland J, Doherty J. Developing a learning progression in physiology to characterize how students reason about ion movement. FASEB J 2020. [DOI: 10.1096/fasebj.2020.34.s1.09744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Hu Y, St John M, Pellionisz P, Moon S, Alhiyari Y. Method for motion artifact compensation in dynamic optical contrast imaging. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2019.11.172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Seok H, Song J, Jeon JH, Choi HK, Choi WS, Moon S, Park DW. Timing of antibiotics in septic patients: a prospective cohort study. Clin Microbiol Infect 2020; 26:1495-1500. [PMID: 32062049 DOI: 10.1016/j.cmi.2020.01.037] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 01/30/2020] [Accepted: 01/31/2020] [Indexed: 12/24/2022]
Abstract
OBJECTIVES To evaluate the effect of timing and appropriateness of antibiotics administration on mortality in patients diagnosed with sepsis according to the Sepsis-3 definition. METHODS This prospective cohort study was conducted in patients diagnosed with sepsis according to the Sepsis-3 definition at the emergency department of Korea University Ansan Hospital from January 2016 to January 2019. The time to antibiotics was defined as the time in hours from emergency department arrival to the first antibiotic administration. Cox proportional hazards regression analysis was used to estimate the association between time to antibiotics and 7-, 14- and 28-day mortality. RESULTS Of 482 patients enrolled onto this study, 203 (42.1%) of 482 and 312 (64.7%) of 482 were diagnosed with septic shock and high-grade infection respectively. The median time to receipt of antibiotic therapy was 115 minutes. Antibiotics were administered within 3 and 6 hours in 340 (70.4%) of 482 and 450 (93.2%) of 482 patients respectively. Initial appropriate empirical antibiotics were administered in 375 (77.8%) of 482 patients. The time to and appropriateness of the initial antibiotics were not associated with 7-, 14- and 28-day mortality in multivariate analysis. The Sequential Organ Failure Assessment (SOFA) score (adjusted hazard ratio (aHR) 1.229, 95% confidence interval (CI) 1.093-1.381, p 0.001) and initial lactate levels (aHR 1.128, 95% CI 1.034-1.230, p 0.007), Charlson comorbidity index (aHR 1.115, 95% CI 1.027-1.210, p 0.014), 2-hour lactate level (aHR 1.115, 95% CI 1.027-1.210, p 0.009) and SOFA score (aHR 1.077, 95% CI 1.013-1.144, p 0.018) affected 7-, 14- and 28-day mortality respectively. Subgroup analysis with septic shock, bacteraemia and high-grade infection did not affect mortality rates. CONCLUSIONS Time to receipt of antibiotics may not affect the prognosis of patients with sepsis if a rapid and well-trained resuscitation is combined with appropriate antibiotic administration within a reasonable time.
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Affiliation(s)
- H Seok
- Division of Infectious Diseases, Department of Medicine, Republic of Korea
| | - J Song
- Department of Emergency Medicine, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Republic of Korea
| | - J H Jeon
- Division of Infectious Diseases, Department of Medicine, Republic of Korea
| | - H K Choi
- Division of Infectious Diseases, Department of Medicine, Republic of Korea
| | - W S Choi
- Division of Infectious Diseases, Department of Medicine, Republic of Korea
| | - S Moon
- Department of Emergency Medicine, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Republic of Korea
| | - D W Park
- Division of Infectious Diseases, Department of Medicine, Republic of Korea.
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Chung YW, Gwak HJ, Moon S, Rho M, Ryu JH. Functional dynamics of bacterial species in the mouse gut microbiome revealed by metagenomic and metatranscriptomic analyses. PLoS One 2020; 15:e0227886. [PMID: 31978162 PMCID: PMC6980644 DOI: 10.1371/journal.pone.0227886] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 12/31/2019] [Indexed: 01/14/2023] Open
Abstract
Background Microbial communities of the mouse gut have been extensively studied; however, their functional roles and regulation are yet to be elucidated. Metagenomic and metatranscriptomic analyses may allow us a comprehensive profiling of bacterial composition and functions of the complex gut microbiota. The present study aimed to investigate the active functions of the microbial communities in the murine cecum by analyzing both metagenomic and metatranscriptomic data on specific bacterial species within the microbial communities, in addition to the whole microbiome. Results Bacterial composition of the healthy mouse gut microbiome was profiled using the following three different approaches: 16S rRNA-based profiling based on amplicon and shotgun sequencing data, and genome-based profiling based on shotgun sequencing data. Consistently, Bacteroidetes, Firmicutes, and Deferribacteres emerged as the major phyla. Based on NCBI taxonomy, Muribaculaceae, Lachnospiraceae, and Deferribacteraceae were the predominant families identified in each phylum. The genes for carbohydrate metabolism were upregulated in Muribaculaceae, while genes for cofactors and vitamin metabolism and amino acid metabolism were upregulated in Deferribacteraceae. The genes for translation were commonly enhanced in all three families. Notably, combined analysis of metagenomic and metatranscriptomic sequencing data revealed that the functions of translation and metabolism were largely upregulated in all three families in the mouse gut environment. The ratio of the genes in the metagenome and their expression in the metatranscriptome indicated higher expression of carbohydrate metabolism in Muribaculum, Duncaniella, and Mucispirillum. Conclusions We demonstrated a fundamental methodology for linking genomic and transcriptomic datasets to examine functional activities of specific bacterial species in a complicated microbial environment. We investigated the normal flora of the mouse gut using three different approaches and identified Muribaculaceae, Lachnospiraceae, and Deferribacteraceae as the predominant families. The functional distribution of these families was reflected in the entire microbiome. By comparing the metagenomic and metatranscriptomic data, we found that the expression rates differed for different functional categories in the mouse gut environment. Application of these methods to track microbial transcription in individuals over time, or before and after administration of a specific stimulus will significantly facilitate future development of diagnostics and treatments.
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Affiliation(s)
- Youn Wook Chung
- The Airway Mucus Institute, Yonsei University College of Medicine, Seoul, Korea
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Ho-Jin Gwak
- Department of Computer Science and Engineering, Hanyang University, Seoul, Korea
| | - Sungmin Moon
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Korea
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - Mina Rho
- Department of Computer Science and Engineering, Hanyang University, Seoul, Korea
- Department of Biomedical Informatics, Hanyang University, Seoul, Korea
- * E-mail: (JHR); (MT)
| | - Ji-Hwan Ryu
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Korea
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
- * E-mail: (JHR); (MT)
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Moon S, Lim HS, Ki SY. Ultrasound Findings of Mammary Duct Ectasia Causing Bloody Nipple Discharge in Infancy and Childhood. J Ultrasound Med 2019; 38:2793-2798. [PMID: 30768798 DOI: 10.1002/jum.14970] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 01/03/2019] [Accepted: 01/12/2019] [Indexed: 06/09/2023]
Abstract
Bloody nipple discharge in infancy and childhood is extremely rare, and mammary duct ectasia is the most common etiology. Ultrasound (US) findings of mammary duct ectasia include dilated ducts and tubular anechoic lesions that may contain echogenic debris in the subareolar region. However, mammary duct ectasia may show variable US findings, which are not well described in the literature. We report 3 cases of mammary duct ectasia in infancy and childhood with variable imaging findings, including complex cystic and solid lesions. Detailed initial clinical and US findings and serial follow-up US images are described.
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Affiliation(s)
- Sungmin Moon
- Department of Radiology, Chonnam National University Hwasun Hospital, Hwasun-eup, Korea
| | - Hyo Soon Lim
- Department of Radiology, Chonnam National University Hwasun Hospital, Hwasun-eup, Korea
| | - So Yeon Ki
- Department of Radiology, Chonnam National University Hospital, Gwangju, Korea
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You JS, Yong JH, Kim GH, Moon S, Nam KT, Ryu JH, Yoon MY, Yoon SS. Commensal-derived metabolites govern Vibrio cholerae pathogenesis in host intestine. Microbiome 2019; 7:132. [PMID: 31521198 PMCID: PMC6744661 DOI: 10.1186/s40168-019-0746-y] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [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: 06/25/2019] [Accepted: 09/03/2019] [Indexed: 05/15/2023]
Abstract
BACKGROUND Recent evidence suggests that the commensal microbes act as a barrier against invading pathogens and enteric infections are the consequences of multi-layered interactions among commensals, pathogens, and the host intestinal tissue. However, it remains unclear how perturbations of the gut microbiota compromise host infection resistance, especially through changes at species and metabolite levels. RESULTS Here, we illustrate how Bacteroides vulgatus, a dominant species of the Bacteroidetes phylum in mouse intestine, suppresses infection by Vibrio cholerae, an important human pathogen. Clindamycin (CL) is an antibiotic that selectively kills anaerobic bacteria, and accordingly Bacteroidetes are completely eradicated from CL-treated mouse intestines. The Bacteroidetes-depleted adult mice developed severe cholera-like symptoms, when infected with V. cholerae. Germ-free mice mono-associated with B. vulgatus became resistant to V. cholerae infection. Levels of V. cholerae growth-inhibitory metabolites including short-chain fatty acids plummeted upon CL treatment, while levels of compounds that enhance V. cholerae proliferation were elevated. Furthermore, the intestinal colonization process of V. cholerae was well-simulated in CL-treated adult mice. CONCLUSIONS Overall, we provide insights into how a symbiotic microbe and a pathogenic intruder interact inside host intestine. We identified B. vulgatus as an indigenous microbial species that can suppress intestinal infection. Our results also demonstrate that commensal-derived metabolites are a critical determinant for host resistance against V. cholerae infection, and that CL pretreatment of adult mice generates a simple yet useful model of cholera infection.
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Affiliation(s)
- Jin Sun You
- Department of Microbiology and Immunology, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu Seoul, Seoul, 03722, Korea
- Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul, 03722, Korea
| | - Ji Hyun Yong
- Department of Microbiology and Immunology, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu Seoul, Seoul, 03722, Korea
- Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul, 03722, Korea
| | - Gwang Hee Kim
- Department of Microbiology and Immunology, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu Seoul, Seoul, 03722, Korea
- Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul, 03722, Korea
| | - Sungmin Moon
- Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul, 03722, Korea
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, 03722, Korea
| | - Ki Taek Nam
- Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul, 03722, Korea
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, 03722, Korea
| | - Ji Hwan Ryu
- Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul, 03722, Korea
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, 03722, Korea
| | - Mi Young Yoon
- Department of Microbiology and Immunology, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu Seoul, Seoul, 03722, Korea.
- Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul, 03722, Korea.
- Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, 03722, Korea.
| | - Sang Sun Yoon
- Department of Microbiology and Immunology, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu Seoul, Seoul, 03722, Korea.
- Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul, 03722, Korea.
- Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, 03722, Korea.
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Roh H, Cho S, Lee G, Moon S, Kong M, You I, Jeong U. Liquid Metal Covered with Thermoplastic Conductive Composites for High Electrical Stability and Negligible Electromechanical Coupling at Large Strains. ACS Appl Mater Interfaces 2019; 11:26204-26212. [PMID: 31259517 DOI: 10.1021/acsami.9b08648] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Stretchable electrode is an essential part of soft electronic devices. Practical stretchable electrodes must meet the following requirements: metallic conductivity and no resistance change in various situations such as repeated large deformation, toxic environment, and large temperature change. This study suggests a simple electrode design that meets all of these requirements simultaneously. The electrode consists of a liquid metal (LM) mesh pattern that is sandwiched between a thermoplastic block copolymer (BCP) film and a BCP/Ag flake composite film with a microfibril network structure on its surface. The electrode has a high conductivity (1.2 × 104 S/cm) and is stretchable up to 600% uniaxial strain (ε). Its resistance remains unchanged during repeated stretching cycles at ε = 300% (ΔR < 0.04 Ω) as well as under simultaneous situation of large deformation (ε = 400%) and large temperature change (20-70 °C). The electrode is anticorrosive in an acidic solution owing to the hydrophobic BCP layer that protects the LM from being etched. This study shows the connection of two separate electrodes and complete healing of scratched electrodes by finger pressing. In addition, it demonstrates the fabrication of superstretchable electroluminescence display as an example of potential uses of the electrode.
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Affiliation(s)
- Heejung Roh
- Department of Materials Science and Engineering , Pohang University of Science and Technology (POSTECH) , 77 Cheongam-ro , Nam-gu, Pohang-si , Gyeongsangbuk-do 37673 , Republic of Korea
| | - Sunghwan Cho
- Department of Materials Science and Engineering , Yonsei University , 50, Yonsei-ro , Seodaemun-gu, Seoul 03722 , Republic of Korea
| | - Gilwoon Lee
- Department of Materials Science and Engineering , Pohang University of Science and Technology (POSTECH) , 77 Cheongam-ro , Nam-gu, Pohang-si , Gyeongsangbuk-do 37673 , Republic of Korea
| | - Sungmin Moon
- Department of Materials Science and Engineering , Pohang University of Science and Technology (POSTECH) , 77 Cheongam-ro , Nam-gu, Pohang-si , Gyeongsangbuk-do 37673 , Republic of Korea
| | - Minsik Kong
- Department of Materials Science and Engineering , Pohang University of Science and Technology (POSTECH) , 77 Cheongam-ro , Nam-gu, Pohang-si , Gyeongsangbuk-do 37673 , Republic of Korea
| | - Insang You
- Department of Materials Science and Engineering , Pohang University of Science and Technology (POSTECH) , 77 Cheongam-ro , Nam-gu, Pohang-si , Gyeongsangbuk-do 37673 , Republic of Korea
| | - Unyong Jeong
- Department of Materials Science and Engineering , Pohang University of Science and Technology (POSTECH) , 77 Cheongam-ro , Nam-gu, Pohang-si , Gyeongsangbuk-do 37673 , Republic of Korea
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Girod S, Mittermiller P, Bidwell S, Thieringer F, Cornelius C, Trickey A, Kontio R, Bader M, Goetz P, Johns D, Smolka W, Mesimaki K, Moon S, Probst F, Qiiao J, Snall J, Wilkmann T, Girod S. The comprehensive AO CMF classification system for mandibular fractures: a multicenter validation study. Int J Oral Maxillofac Surg 2019. [DOI: 10.1016/j.ijom.2019.03.094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Howell SJ, Waters S, Twelves C, Joffe J, Moon S, Bale C, Venkitaraman R, Bezecny P, Casbard A, Wilhelm-Benartzi C, Carucci M, Butler R, Alchami F, Jones R. Abstract PD1-07: Withdrawn. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-pd1-07] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
This abstract was withdrawn by the authors.
Citation Format: Howell SJ, Waters S, Twelves C, Joffe J, Moon S, Bale C, Venkitaraman R, Bezecny P, Casbard A, Wilhelm-Benartzi C, Carucci M, Butler R, Alchami F, Jones R. Withdrawn [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr PD1-07.
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Affiliation(s)
- SJ Howell
- University of Manchester, Manchester, United Kingdom; The Christie NHS Foundation Trust, Manchester, United Kingdom; Velindre Cancer Centre, Cardiff, United Kingdom; University of Leeds and Leeds Teaching Hospitals Trust, Leeds, United Kingdom; Calderdale & Huddersfield NHS Foundation Trust, Huddersfield, United Kingdom; University Hospitals of Morecambe Bay NHS Foundation Trust, Lancaster, United Kingdom; Betsi Cadwaladr University Health Board, Bangor, United Kingdom; The Ipswich Hospital NHS Trust, Ipswich, United Kingdom; Blackpool Teaching Hospitals NHS Foundation Trust, Blackpool, United Kingdom; Centre for Trials Research, Cardiff University, Cardiff, United Kingdom; All Wales Laboratory Genetics Service, University Hospital of Wales, Cardiff, United Kingdom; University Hospital of Wales, Cardiff, United Kingdom; Cardiff University, Cardiff, United Kingdom
| | - S Waters
- University of Manchester, Manchester, United Kingdom; The Christie NHS Foundation Trust, Manchester, United Kingdom; Velindre Cancer Centre, Cardiff, United Kingdom; University of Leeds and Leeds Teaching Hospitals Trust, Leeds, United Kingdom; Calderdale & Huddersfield NHS Foundation Trust, Huddersfield, United Kingdom; University Hospitals of Morecambe Bay NHS Foundation Trust, Lancaster, United Kingdom; Betsi Cadwaladr University Health Board, Bangor, United Kingdom; The Ipswich Hospital NHS Trust, Ipswich, United Kingdom; Blackpool Teaching Hospitals NHS Foundation Trust, Blackpool, United Kingdom; Centre for Trials Research, Cardiff University, Cardiff, United Kingdom; All Wales Laboratory Genetics Service, University Hospital of Wales, Cardiff, United Kingdom; University Hospital of Wales, Cardiff, United Kingdom; Cardiff University, Cardiff, United Kingdom
| | - C Twelves
- University of Manchester, Manchester, United Kingdom; The Christie NHS Foundation Trust, Manchester, United Kingdom; Velindre Cancer Centre, Cardiff, United Kingdom; University of Leeds and Leeds Teaching Hospitals Trust, Leeds, United Kingdom; Calderdale & Huddersfield NHS Foundation Trust, Huddersfield, United Kingdom; University Hospitals of Morecambe Bay NHS Foundation Trust, Lancaster, United Kingdom; Betsi Cadwaladr University Health Board, Bangor, United Kingdom; The Ipswich Hospital NHS Trust, Ipswich, United Kingdom; Blackpool Teaching Hospitals NHS Foundation Trust, Blackpool, United Kingdom; Centre for Trials Research, Cardiff University, Cardiff, United Kingdom; All Wales Laboratory Genetics Service, University Hospital of Wales, Cardiff, United Kingdom; University Hospital of Wales, Cardiff, United Kingdom; Cardiff University, Cardiff, United Kingdom
| | - J Joffe
- University of Manchester, Manchester, United Kingdom; The Christie NHS Foundation Trust, Manchester, United Kingdom; Velindre Cancer Centre, Cardiff, United Kingdom; University of Leeds and Leeds Teaching Hospitals Trust, Leeds, United Kingdom; Calderdale & Huddersfield NHS Foundation Trust, Huddersfield, United Kingdom; University Hospitals of Morecambe Bay NHS Foundation Trust, Lancaster, United Kingdom; Betsi Cadwaladr University Health Board, Bangor, United Kingdom; The Ipswich Hospital NHS Trust, Ipswich, United Kingdom; Blackpool Teaching Hospitals NHS Foundation Trust, Blackpool, United Kingdom; Centre for Trials Research, Cardiff University, Cardiff, United Kingdom; All Wales Laboratory Genetics Service, University Hospital of Wales, Cardiff, United Kingdom; University Hospital of Wales, Cardiff, United Kingdom; Cardiff University, Cardiff, United Kingdom
| | - S Moon
- University of Manchester, Manchester, United Kingdom; The Christie NHS Foundation Trust, Manchester, United Kingdom; Velindre Cancer Centre, Cardiff, United Kingdom; University of Leeds and Leeds Teaching Hospitals Trust, Leeds, United Kingdom; Calderdale & Huddersfield NHS Foundation Trust, Huddersfield, United Kingdom; University Hospitals of Morecambe Bay NHS Foundation Trust, Lancaster, United Kingdom; Betsi Cadwaladr University Health Board, Bangor, United Kingdom; The Ipswich Hospital NHS Trust, Ipswich, United Kingdom; Blackpool Teaching Hospitals NHS Foundation Trust, Blackpool, United Kingdom; Centre for Trials Research, Cardiff University, Cardiff, United Kingdom; All Wales Laboratory Genetics Service, University Hospital of Wales, Cardiff, United Kingdom; University Hospital of Wales, Cardiff, United Kingdom; Cardiff University, Cardiff, United Kingdom
| | - C Bale
- University of Manchester, Manchester, United Kingdom; The Christie NHS Foundation Trust, Manchester, United Kingdom; Velindre Cancer Centre, Cardiff, United Kingdom; University of Leeds and Leeds Teaching Hospitals Trust, Leeds, United Kingdom; Calderdale & Huddersfield NHS Foundation Trust, Huddersfield, United Kingdom; University Hospitals of Morecambe Bay NHS Foundation Trust, Lancaster, United Kingdom; Betsi Cadwaladr University Health Board, Bangor, United Kingdom; The Ipswich Hospital NHS Trust, Ipswich, United Kingdom; Blackpool Teaching Hospitals NHS Foundation Trust, Blackpool, United Kingdom; Centre for Trials Research, Cardiff University, Cardiff, United Kingdom; All Wales Laboratory Genetics Service, University Hospital of Wales, Cardiff, United Kingdom; University Hospital of Wales, Cardiff, United Kingdom; Cardiff University, Cardiff, United Kingdom
| | - R Venkitaraman
- University of Manchester, Manchester, United Kingdom; The Christie NHS Foundation Trust, Manchester, United Kingdom; Velindre Cancer Centre, Cardiff, United Kingdom; University of Leeds and Leeds Teaching Hospitals Trust, Leeds, United Kingdom; Calderdale & Huddersfield NHS Foundation Trust, Huddersfield, United Kingdom; University Hospitals of Morecambe Bay NHS Foundation Trust, Lancaster, United Kingdom; Betsi Cadwaladr University Health Board, Bangor, United Kingdom; The Ipswich Hospital NHS Trust, Ipswich, United Kingdom; Blackpool Teaching Hospitals NHS Foundation Trust, Blackpool, United Kingdom; Centre for Trials Research, Cardiff University, Cardiff, United Kingdom; All Wales Laboratory Genetics Service, University Hospital of Wales, Cardiff, United Kingdom; University Hospital of Wales, Cardiff, United Kingdom; Cardiff University, Cardiff, United Kingdom
| | - P Bezecny
- University of Manchester, Manchester, United Kingdom; The Christie NHS Foundation Trust, Manchester, United Kingdom; Velindre Cancer Centre, Cardiff, United Kingdom; University of Leeds and Leeds Teaching Hospitals Trust, Leeds, United Kingdom; Calderdale & Huddersfield NHS Foundation Trust, Huddersfield, United Kingdom; University Hospitals of Morecambe Bay NHS Foundation Trust, Lancaster, United Kingdom; Betsi Cadwaladr University Health Board, Bangor, United Kingdom; The Ipswich Hospital NHS Trust, Ipswich, United Kingdom; Blackpool Teaching Hospitals NHS Foundation Trust, Blackpool, United Kingdom; Centre for Trials Research, Cardiff University, Cardiff, United Kingdom; All Wales Laboratory Genetics Service, University Hospital of Wales, Cardiff, United Kingdom; University Hospital of Wales, Cardiff, United Kingdom; Cardiff University, Cardiff, United Kingdom
| | - A Casbard
- University of Manchester, Manchester, United Kingdom; The Christie NHS Foundation Trust, Manchester, United Kingdom; Velindre Cancer Centre, Cardiff, United Kingdom; University of Leeds and Leeds Teaching Hospitals Trust, Leeds, United Kingdom; Calderdale & Huddersfield NHS Foundation Trust, Huddersfield, United Kingdom; University Hospitals of Morecambe Bay NHS Foundation Trust, Lancaster, United Kingdom; Betsi Cadwaladr University Health Board, Bangor, United Kingdom; The Ipswich Hospital NHS Trust, Ipswich, United Kingdom; Blackpool Teaching Hospitals NHS Foundation Trust, Blackpool, United Kingdom; Centre for Trials Research, Cardiff University, Cardiff, United Kingdom; All Wales Laboratory Genetics Service, University Hospital of Wales, Cardiff, United Kingdom; University Hospital of Wales, Cardiff, United Kingdom; Cardiff University, Cardiff, United Kingdom
| | - C Wilhelm-Benartzi
- University of Manchester, Manchester, United Kingdom; The Christie NHS Foundation Trust, Manchester, United Kingdom; Velindre Cancer Centre, Cardiff, United Kingdom; University of Leeds and Leeds Teaching Hospitals Trust, Leeds, United Kingdom; Calderdale & Huddersfield NHS Foundation Trust, Huddersfield, United Kingdom; University Hospitals of Morecambe Bay NHS Foundation Trust, Lancaster, United Kingdom; Betsi Cadwaladr University Health Board, Bangor, United Kingdom; The Ipswich Hospital NHS Trust, Ipswich, United Kingdom; Blackpool Teaching Hospitals NHS Foundation Trust, Blackpool, United Kingdom; Centre for Trials Research, Cardiff University, Cardiff, United Kingdom; All Wales Laboratory Genetics Service, University Hospital of Wales, Cardiff, United Kingdom; University Hospital of Wales, Cardiff, United Kingdom; Cardiff University, Cardiff, United Kingdom
| | - M Carucci
- University of Manchester, Manchester, United Kingdom; The Christie NHS Foundation Trust, Manchester, United Kingdom; Velindre Cancer Centre, Cardiff, United Kingdom; University of Leeds and Leeds Teaching Hospitals Trust, Leeds, United Kingdom; Calderdale & Huddersfield NHS Foundation Trust, Huddersfield, United Kingdom; University Hospitals of Morecambe Bay NHS Foundation Trust, Lancaster, United Kingdom; Betsi Cadwaladr University Health Board, Bangor, United Kingdom; The Ipswich Hospital NHS Trust, Ipswich, United Kingdom; Blackpool Teaching Hospitals NHS Foundation Trust, Blackpool, United Kingdom; Centre for Trials Research, Cardiff University, Cardiff, United Kingdom; All Wales Laboratory Genetics Service, University Hospital of Wales, Cardiff, United Kingdom; University Hospital of Wales, Cardiff, United Kingdom; Cardiff University, Cardiff, United Kingdom
| | - R Butler
- University of Manchester, Manchester, United Kingdom; The Christie NHS Foundation Trust, Manchester, United Kingdom; Velindre Cancer Centre, Cardiff, United Kingdom; University of Leeds and Leeds Teaching Hospitals Trust, Leeds, United Kingdom; Calderdale & Huddersfield NHS Foundation Trust, Huddersfield, United Kingdom; University Hospitals of Morecambe Bay NHS Foundation Trust, Lancaster, United Kingdom; Betsi Cadwaladr University Health Board, Bangor, United Kingdom; The Ipswich Hospital NHS Trust, Ipswich, United Kingdom; Blackpool Teaching Hospitals NHS Foundation Trust, Blackpool, United Kingdom; Centre for Trials Research, Cardiff University, Cardiff, United Kingdom; All Wales Laboratory Genetics Service, University Hospital of Wales, Cardiff, United Kingdom; University Hospital of Wales, Cardiff, United Kingdom; Cardiff University, Cardiff, United Kingdom
| | - F Alchami
- University of Manchester, Manchester, United Kingdom; The Christie NHS Foundation Trust, Manchester, United Kingdom; Velindre Cancer Centre, Cardiff, United Kingdom; University of Leeds and Leeds Teaching Hospitals Trust, Leeds, United Kingdom; Calderdale & Huddersfield NHS Foundation Trust, Huddersfield, United Kingdom; University Hospitals of Morecambe Bay NHS Foundation Trust, Lancaster, United Kingdom; Betsi Cadwaladr University Health Board, Bangor, United Kingdom; The Ipswich Hospital NHS Trust, Ipswich, United Kingdom; Blackpool Teaching Hospitals NHS Foundation Trust, Blackpool, United Kingdom; Centre for Trials Research, Cardiff University, Cardiff, United Kingdom; All Wales Laboratory Genetics Service, University Hospital of Wales, Cardiff, United Kingdom; University Hospital of Wales, Cardiff, United Kingdom; Cardiff University, Cardiff, United Kingdom
| | - R Jones
- University of Manchester, Manchester, United Kingdom; The Christie NHS Foundation Trust, Manchester, United Kingdom; Velindre Cancer Centre, Cardiff, United Kingdom; University of Leeds and Leeds Teaching Hospitals Trust, Leeds, United Kingdom; Calderdale & Huddersfield NHS Foundation Trust, Huddersfield, United Kingdom; University Hospitals of Morecambe Bay NHS Foundation Trust, Lancaster, United Kingdom; Betsi Cadwaladr University Health Board, Bangor, United Kingdom; The Ipswich Hospital NHS Trust, Ipswich, United Kingdom; Blackpool Teaching Hospitals NHS Foundation Trust, Blackpool, United Kingdom; Centre for Trials Research, Cardiff University, Cardiff, United Kingdom; All Wales Laboratory Genetics Service, University Hospital of Wales, Cardiff, United Kingdom; University Hospital of Wales, Cardiff, United Kingdom; Cardiff University, Cardiff, United Kingdom
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Yun S, Lee K, Park Y, Moon S, Lee H, Choe G, Lee K. Clinicopathological and prognostic significance of programmed death ligand 1 expression in Korean melanoma patients. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy439.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Park J, Moon S, Cho H, Kim D, Yoon Y, Cho Y. 350 Effect of Team-Based CPR Training for Emergency Medical Services Providers on Out-of-Hospital Return of Spontaneous Circulation in Cardiac Arrest Patients. Ann Emerg Med 2018. [DOI: 10.1016/j.annemergmed.2018.08.355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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KIM C, Moon J, Kang B, Moon S. Serum testosterone and free testosterone levels may be negatively correlated with mitochondrial function of granulosa cells in women with polycystic ovary syndrome. Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Moon S, Park HK, Song JH, Cho S, Kim JC, Kim J, Hwang H, Kim HS, Jeong U. Metal Deposition on a Self-Generated Microfibril Network to Fabricate Stretchable Tactile Sensors Providing Analog Position Information. Adv Mater 2018; 30:e1801408. [PMID: 29947105 DOI: 10.1002/adma.201801408] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 05/12/2018] [Indexed: 06/08/2023]
Abstract
Stretchable conductors and sensors have attracted great attention for use in electronic skin and healthcare monitoring. Despite the development of many stretchable conductors, there are still very few studies that utilize the conventional methods making electrodes and circuits used in current industry. A method is proposed to fabricate a stretchable electrode pattern and a stretchable tactile sensor by simply depositing linear metal lines through a mask on a stretchable substrate. A method is developed of a self-generating microfibril network on the surface of stretchable block copolymer substrates. The formation mechanism of the microfibril network is studied with finite element method simulations. Metals (Au and Ag nanowires) are deposited directly on the substrate through a patterned mask. This study shows that strain-insensitive circuit and strain-sensitive sensor can be fabricated in a controlled way by adjusting the thickness of the deposited metal, which makes it easy to fabricate a tactile sensor by metal deposition. Also, by using the characteristic that the sensor has different sensitivity depending on the line pattern width, a novel sensor structure simultaneously providing analog-type position information and pressure value is proposed.
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Affiliation(s)
- Sungmin Moon
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea
| | - Hyung Keun Park
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea
| | - Jun Hyuk Song
- Department of Materials Science and Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Sunghwan Cho
- Department of Materials Science and Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Jong Chan Kim
- Machine Intelligence Research Center, Korea Institute of Robot and Convergence (KIRO), Jigok-Ro 39, Nam-gu, Pohang, 37666, Republic of Korea
| | - Junghoon Kim
- Machine Intelligence Research Center, Korea Institute of Robot and Convergence (KIRO), Jigok-Ro 39, Nam-gu, Pohang, 37666, Republic of Korea
| | - Heesun Hwang
- Machine Intelligence Research Center, Korea Institute of Robot and Convergence (KIRO), Jigok-Ro 39, Nam-gu, Pohang, 37666, Republic of Korea
| | - Hyoung Seop Kim
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea
| | - Unyong Jeong
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea
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Park M, Moon S, Cho M. Optimization of adipose tissue-derived mesenchymal stem cells by metformin in a murine model of osteoarthritis. Cytotherapy 2018. [DOI: 10.1016/j.jcyt.2018.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Song JH, Kim YT, Cho S, Song WJ, Moon S, Park CG, Park S, Myoung JM, Jeong U. Surface-Embedded Stretchable Electrodes by Direct Printing and their Uses to Fabricate Ultrathin Vibration Sensors and Circuits for 3D Structures. Adv Mater 2017; 29:1702625. [PMID: 28977713 DOI: 10.1002/adma.201702625] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 08/16/2017] [Indexed: 06/07/2023]
Abstract
Printing is one of the easy and quick ways to make a stretchable wearable electronics. Conventional printing methods deposit conductive materials "on" or "inside" a rubber substrate. The conductors made by such printing methods cannot be used as device electrodes because of the large surface topology, poor stretchability, or weak adhesion between the substrate and the conducting material. Here, a method is presented by which conductive materials are printed in the way of being surface-embedded in the rubber substrate; hence, the conductors can be widely used as device electrodes and circuits. The printing process involves a direct printing of a metal precursor solution in a block-copolymer rubber substrate and chemical reduction of the precursor into metal nanoparticles. The electrical conductivity and sensitivity to the mechanical deformation can be controlled by adjusting the number of printing operations. The fabrication of highly sensitive vibration sensors is thus presented, which can detect weak pulses and sound waves. In addition, this work takes advantage of the viscoelasticity of the composite conductor to fabricate highly conductive stretchable circuits for complicated 3D structures. The printed electrodes are also used to fabricate a stretchable electrochemiluminescence display.
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Affiliation(s)
- Jun Hyuk Song
- Department of Materials Science and Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Young-Tae Kim
- Department of Materials Science and Engineering, Pohang University of Science and Technology, 77 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea
| | - Sunghwan Cho
- Department of Materials Science and Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Woo-Jin Song
- UNIST Central Research Facilities & School of National Science, Ulsan National Institute of Science and Technology, 50 UNIST-gil, Banyeon-riEonyang-eup, Ulju-gun, Ulsan, 44919, Republic of Korea
| | - Sungmin Moon
- Department of Materials Science and Engineering, Pohang University of Science and Technology, 77 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea
| | - Chan-Gyung Park
- Department of Materials Science and Engineering, Pohang University of Science and Technology, 77 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea
| | - Soojin Park
- UNIST Central Research Facilities & School of National Science, Ulsan National Institute of Science and Technology, 50 UNIST-gil, Banyeon-riEonyang-eup, Ulju-gun, Ulsan, 44919, Republic of Korea
| | - Jae Min Myoung
- Department of Materials Science and Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Unyong Jeong
- Department of Materials Science and Engineering, Pohang University of Science and Technology, 77 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea
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Lee W, Moon S. Is consumer choice in health care good for society from an efficiency perspective. Eur J Public Health 2017. [DOI: 10.1093/eurpub/ckx186.095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- W Lee
- Myeongho-myeon Health Subcenter, Ansan, South Korea
| | - S Moon
- Myeongho-myeon Health Subcenter, Ansan, South Korea
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Kim S, Cho S, Lee SJ, Lee G, Kong M, Moon S, Myoung JM, Jeong U. Boosting up the electrical performance of low-grade PEDOT:PSS by optimizing non-ionic surfactants. Nanoscale 2017; 9:16079-16085. [PMID: 29034928 DOI: 10.1039/c7nr05584f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Although PEDOT:PSS has already been applied to various electronic devices, commercialized PEDOT:PSS products having high conductivity are expensive, which is a considerable burden on device manufacturing. In this study, we optimize non-ionic surfactants mixed in a PEDOT:PSS solution to upgrade a low-grade product of low conductivity to the level of a high-grade product of high conductivity. This study systematically investigates the phase diagram, morphology, conductivity, and mechanical stability of the PEDOT:PSS films according to the hydrophilicity of non-ionic surfactants. This study reveals that the conductivity of the PEDOT:PSS film varies greatly depending on the chemical structure of the surfactant and its weight fraction in the thin film. Under the optimum conditions (chemical structure and weight fraction) of the surfactant, the conductivity of the low value product could be improved to the conductivity level of the high value product. The electrical properties of the films were excellently stable even under the extreme cyclic bending tests at a bending radius of 1.5 mm. The low-grade and high grade products showed the same electrical performance when they were used in the Ag nanowires/PEDOT:PSS hybrid transparent electrodes. The results are expected to be applied immediately not only in the laboratory but also in various industrial fields.
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Affiliation(s)
- Sunghee Kim
- Department of Materials Science and Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea.
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Moon S. 292 Study on the seasonal changes in average daily gain, feed value, forage productivity, and grazing intensity in native pasture grazed by Korean native goat (Capra hircus coreanae). J Anim Sci 2017. [DOI: 10.2527/asasann.2017.292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Oh M, Moon S, Kim MS. 267 Inspection for fecal contamination on chicken carcass using handheld imaging device. J Anim Sci 2017. [DOI: 10.2527/asasann.2017.267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Moon S. 599 Energy requirements for maintenance of growing Korean indigenous goats (Capra hircus coreanae). J Anim Sci 2017. [DOI: 10.2527/asasann.2017.599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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