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Yang DE, Jo S, Lee DH, An WS, Jeong MJ, Son M. Dynamics of serum anion gaps with in-hospital mortality: Analysis of the multi-open databases. PLoS One 2024; 19:e0302206. [PMID: 38625899 PMCID: PMC11020621 DOI: 10.1371/journal.pone.0302206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Accepted: 03/31/2024] [Indexed: 04/18/2024] Open
Abstract
BACKGROUND Few studies have investigated the relationship between the anion gap, including the corrected anion gap, and patient mortality in intensive care units (ICUs) without restricting the analysis to specific diseases or medical specialties. Our primary objective was to investigate the association between the anion gap and ICU mortality using multiple open-access databases. METHODS We identified 4229 subjects from the Medical Information Mart for Intensive Care IV (MIMIC-IV) database, whose entries were from between 2008 and 2019. For each patient, the anion gap and corrected anion gap were calculated, and the study sample was divided into tertile groups (T) according to these levels. The association between the anion gap and in-hospital mortality was assessed using hazard ratios (HRs) and 95% confidence intervals (CIs) derived from a multivariable-adjusted Cox proportional hazards model. Besides MIMIC-IV, we also incorporated study samples from two other databases (MIMIC-III and electronic ICU) to calculate summary HRs using a random-effects meta-analysis. RESULTS Within MIMIC-IV, 1015 patients (24%) died during an average follow-up period of 15.5 days. The fully adjusted HRs and 95% CIs for T2 and T3, relative to T1, were 1.31 (95% CI 1.08-1.58) and 1.54 (95% CI 1.24-1.90), respectively. When grouped by corrected anion gap, the results remained statistically significant. In the meta-analysis, the summary HRs and 95% CIs for T2 and T3 were 1.24 (95% CI 1.08-1.43) and 1.55 (95% CI 1.33-1.82), respectively. CONCLUSIONS Both the anion gap and corrected anion gap were associated with in-hospital mortality regardless of specific diseases or medical specialties.
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Affiliation(s)
- Dong Eun Yang
- Department of Internal Medicine, Dong-A University College of Medicine, Busan, Republic of Korea
| | - Sua Jo
- Department of Hospital Medicine, Inha University Hospital, Incheon, Republic of Korea
| | - Dong Hyun Lee
- Department of Pulmonology and Intensive Care Medicine, Dong-A University College of Medicine, Busan, Republic of Korea
| | - Won Suk An
- Department of Internal Medicine, Dong-A University College of Medicine, Busan, Republic of Korea
| | - Min Jae Jeong
- Department of Physiology, Dong-A University College of Medicine, Busan, Republic of Korea
| | - Minkook Son
- Department of Physiology, Dong-A University College of Medicine, Busan, Republic of Korea
- Department of Data Sciences Convergence, Dong-A University Interdisciplinary Program, Busan, Republic of Korea
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Lee DH, Kim S, Woo G, Kim T, Kim YJ, Yoo H. A Mixture of Negative-, Zero-, and Positive-Differential Transconductance Switching from Tellurium/Indium Gallium Zinc Oxide Heterostructures. ACS Appl Mater Interfaces 2024. [PMID: 38593271 DOI: 10.1021/acsami.3c19471] [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: 04/11/2024]
Abstract
Conventional transistors have long emphasized signal modulation and amplification, often sidelining polarity considerations. However, the recent emergence of negative differential transconductance, characterized by a drain current decline during gate voltage sweeping, has illuminated an unconventional path in transistor technology. This phenomenon promises to simplify the implementation of ternary logic circuits and enhance energy efficiency, especially in multivalued logic applications. Our research has culminated in the development of a sophisticated mixed transconductance transistor (M-T device) founded on a precise Te and IGZO heterojunction. The M-T device exhibits a sequence of intriguing phenomena, zero differential transconductance (ZDT), positive differential transconductance (PDT), and negative differential transconductance (NDT) contingent on applied gate voltage. We clarify its operation using a three-segment equivalent circuit model and validate its viability with IGZO TFT, Te TFT, and Te/IGZO TFT components. In a concluding demonstration, the M-T device interconnected with Te TFT achieves a ternary inverter with an intermediate logic state. Remarkably, this configuration seamlessly transitions into a binary inverter when it is exposed to light.
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Affiliation(s)
- Dong Hyun Lee
- Department of Electronic Engineering, Gachon University, Seongnam, Gyeonggi 13120, Republic of Korea
| | - Somi Kim
- Department of Electronic Engineering, Gachon University, Seongnam, Gyeonggi 13120, Republic of Korea
| | - Gunhoo Woo
- SKKU Advanced Institute of Nanotechnology, Sungkyunkwan University (SKKU), Suwon, Gyeonggi-do 16419, Republic of Korea
| | - Taesung Kim
- SKKU Advanced Institute of Nanotechnology, Sungkyunkwan University (SKKU), Suwon, Gyeonggi-do 16419, Republic of Korea
- School of Mechanical Engineering, Sungkyunkwan University, Suwon, Gyeonggi-do 16419, Republic of Korea
| | - Yeong Jae Kim
- Ceramic Total Solution Center, Korea Institute of Ceramic Engineering and Technology, Icheon 17303, Republic of Korea
| | - Hocheon Yoo
- Department of Electronic Engineering, Gachon University, Seongnam, Gyeonggi 13120, Republic of Korea
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Park JE, Ko SM, Han HJ, Lee JY, Jeong DS, Lee DH, Heo IK, Shin YU, Kim YH, Son WC. Toxicology and safety study of L-tryptophan and its impurities for use in swine. J Appl Toxicol 2024. [PMID: 38594832 DOI: 10.1002/jat.4606] [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: 02/16/2024] [Revised: 03/13/2024] [Accepted: 03/14/2024] [Indexed: 04/11/2024]
Abstract
L-tryptophan, an essential amino acid for physiological processes, metabolism, development, and growth of organisms, is widely utilized in animal nutrition and human health as a feed additive and nutritional supplement, respectively. Despite its known benefits, safety concerns have arisen due to an eosinophilia-myalgia syndrome (EMS) outbreak linked to L-tryptophan consumed by humans. Extensive research has established that the EMS outbreak was caused by an L-tryptophan product that contained certain impurities. Therefore, safety validations are imperative to endorse the use of L-tryptophan as a supplement or a feed additive. This study was conducted in tertiary hybrid [(Landrace × Yorkshire) × Duroc] pigs to assess general toxicity and potential risks for EMS-related symptoms associated with L-tryptophan used as a feed additive. Our investigation elucidated the relationship between L-tryptophan and EMS in swine. No mortalities or clinical signs were observed in any animals during the administration period, and the test substance did not induce toxic effects. Hematological analysis and histopathological examination revealed no changes in EMS-related parameters, such as eosinophil counts, lung lesions, skin lesions, or muscle atrophy. Furthermore, no test substance-related changes occurred in other general toxicological parameters. Through analyzing the tissues and organs of swine, most of the L-tryptophan impurities that may cause EMS were not retained. Based on these findings, we concluded that incorporating L-tryptophan and its impurities into the diet does not induce EMS in swine. Consequently, L-tryptophan may be used as a feed additive throughout all growth stages of swine without safety concerns.
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Affiliation(s)
- Ji-Eun Park
- Department of Medical Science, AMIST, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
- Institute of Biotechnology, CJ CheilJedang, Suwon-si, Gyeonggi-do, Republic of Korea
| | - Soo Min Ko
- Department of Medical Science, AMIST, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Hyo-Jeong Han
- Department of Medical Science, AMIST, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Ji-Young Lee
- Department of Medical Science, AMIST, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Da Som Jeong
- Department of Medical Science, AMIST, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Dong Hyun Lee
- Department of Medical Science, AMIST, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - In Kyung Heo
- Institute of Biotechnology, CJ CheilJedang, Suwon-si, Gyeonggi-do, Republic of Korea
| | - Yong Uk Shin
- Institute of Biotechnology, CJ CheilJedang, Suwon-si, Gyeonggi-do, Republic of Korea
| | - Yang Hee Kim
- Institute of Biotechnology, CJ CheilJedang, Suwon-si, Gyeonggi-do, Republic of Korea
| | - Woo-Chan Son
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
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Park SS, Lee YK, Choi YW, Lim SB, Park SH, Kim HK, Shin JS, Kim YH, Lee DH, Kim JH, Park TJ. Cellular senescence is associated with the spatial evolution toward a higher metastatic phenotype in colorectal cancer. Cell Rep 2024; 43:113912. [PMID: 38446659 DOI: 10.1016/j.celrep.2024.113912] [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: 08/03/2023] [Revised: 12/21/2023] [Accepted: 02/19/2024] [Indexed: 03/08/2024] Open
Abstract
In this study, we explore the dynamic process of colorectal cancer progression, emphasizing the evolution toward a more metastatic phenotype. The term "evolution" as used in this study specifically denotes the phenotypic transition toward a higher metastatic potency from well-formed glandular structures to collective invasion, ultimately resulting in the development of cancer cell buddings at the invasive front. Our findings highlight the spatial correlation of this evolution with tumor cell senescence, revealing distinct types of senescent tumor cells (types I and II) that play different roles in the overall cancer progression. Type I senescent tumor cells (p16INK4A+/CXCL12+/LAMC2-/MMP7-) are identified in the collective invasion region, whereas type II senescent tumor cells (p16INK4A+/CXCL12+/LAMC2+/MMP7+), representing the final evolved form, are prominently located in the partial-EMT region. Importantly, type II senescent tumor cells associate with local invasion and lymph node metastasis in colorectal cancer, potentially affecting patient prognosis.
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Affiliation(s)
- Soon Sang Park
- Department of Biochemistry and Molecular Biology, Ajou University School of Medicine, Suwon 16499, Korea; Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon 16499, Korea; Inflamm-Aging Translational Research Center, Ajou University Medical Center, Suwon 16499, Korea
| | - Young-Kyoung Lee
- Department of Biochemistry and Molecular Biology, Ajou University School of Medicine, Suwon 16499, Korea; Inflamm-Aging Translational Research Center, Ajou University Medical Center, Suwon 16499, Korea
| | - Yong Won Choi
- Inflamm-Aging Translational Research Center, Ajou University Medical Center, Suwon 16499, Korea; Department of Hematology and Oncology, Ajou University School of Medicine, Suwon 16499, Korea
| | - Su Bin Lim
- Department of Biochemistry and Molecular Biology, Ajou University School of Medicine, Suwon 16499, Korea; Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon 16499, Korea; Inflamm-Aging Translational Research Center, Ajou University Medical Center, Suwon 16499, Korea
| | - So Hyun Park
- Inflamm-Aging Translational Research Center, Ajou University Medical Center, Suwon 16499, Korea; Department of Pathology, Ajou University School of Medicine, Suwon 16499, Korea
| | - Han Ki Kim
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon 16499, Korea; Department of Brain Science and Neurology, Ajou University School of Medicine, Suwon 16499, Korea
| | - Jun Sang Shin
- Department of Surgery, Ajou University School of Medicine, Suwon 16499, Korea
| | - Young Hwa Kim
- Inflamm-Aging Translational Research Center, Ajou University Medical Center, Suwon 16499, Korea; Department of Pathology, Ajou University School of Medicine, Suwon 16499, Korea
| | - Dong Hyun Lee
- Department of Biochemistry and Molecular Biology, Ajou University School of Medicine, Suwon 16499, Korea; Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon 16499, Korea; Inflamm-Aging Translational Research Center, Ajou University Medical Center, Suwon 16499, Korea
| | - Jang-Hee Kim
- Inflamm-Aging Translational Research Center, Ajou University Medical Center, Suwon 16499, Korea; Department of Pathology, Ajou University School of Medicine, Suwon 16499, Korea.
| | - Tae Jun Park
- Department of Biochemistry and Molecular Biology, Ajou University School of Medicine, Suwon 16499, Korea; Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon 16499, Korea; Inflamm-Aging Translational Research Center, Ajou University Medical Center, Suwon 16499, Korea.
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Lee KB, Kim MH, Yoon JT, Song Y, Kwon B, Hwang SM, Choi JH, Lee DH. A simplified cranial cavity model to understand the relationship between intracranial pressure and dural sinus pressure. Interv Neuroradiol 2024; 30:57-63. [PMID: 35679068 PMCID: PMC10956465 DOI: 10.1177/15910199221107440] [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: 03/23/2022] [Accepted: 05/27/2022] [Indexed: 11/15/2022] Open
Abstract
Although accurate intracranial pressure (ICP) monitoring is essential for the diagnosis and treatment of severe brain diseases, current methods are performed invasively. Therefore, a safe and less invasive ICP measurement is required. The purpose of our study was to develop a simplified cranial cavity model for a better understanding of the relationship between the ICP and the pressure measurement within the dural venous sinus (DVS) to support the validity of using sinus pressure as the surrogate of the ICP. The in-house cranial cavity model had three components: the brain part, the DVS part, and the subarachnoid space (SAS) part. Pressure in other parts was measured when the pressure in the SAS part and, separately, brain part was increased from 0 (baseline) to 50 mmHg at intervals of 10 mmHg. When the pressure in the SAS part was increased from 10 to 50 mmHg at 10 mmHg interval, pressures of both the brain and DVS parts increased without significant difference (all P > 0.05). However, pressures in both the SAS and DVS parts differed while the pressure in the brain part was increased. The pressures in both parts showed about 70% of the increase in the brain part. Nevertheless, the pressures in the SAS and DVS parts were not significantly different (P > 0.05). A simplified in-house cranial cavity model was developed consisting of three compartments to represent the actual intracranial spaces. The pressure measurement within the DVS was feasible to use as a surrogate for the ICP measurement.
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Affiliation(s)
- KB Lee
- Department of Radiologic Technology, Chungbuk Health & Science University, Cheongju 28150, Republic of Korea
| | - MH Kim
- Department of Radiology, Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - J-T Yoon
- Department of Radiology, Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - Y Song
- Department of Radiology, Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - B Kwon
- Department of Radiology, Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - SM Hwang
- Department of Radiology, Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - JH Choi
- Department of Radiology, Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - DH Lee
- Department of Radiology, Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
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Park SY, Choi Y, Seo YH, Kim H, Lee DH, Truong PL, Jeon Y, Yoo H, Kwon SJ, Lee D, Cho ES. 355 nm Nanosecond Ultraviolet Pulsed Laser Annealing Effects on Amorphous In-Ga-ZnO Thin Film Transistors. Micromachines (Basel) 2024; 15:103. [PMID: 38258222 PMCID: PMC10818844 DOI: 10.3390/mi15010103] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 12/30/2023] [Accepted: 01/04/2024] [Indexed: 01/24/2024]
Abstract
Bottom-gate thin-film transistors (TFTs) with n-type amorphous indium-gallium-zinc oxide (a-IGZO) active channels and indium-tin oxide (ITO) source/drain electrodes were fabricated. Then, an ultraviolet (UV) nanosecond pulsed laser with a wavelength of 355 nm was scanned to locally anneal the active channel at various laser powers. After laser annealing, negative shifts in the threshold voltages and enhanced on-currents were observed at laser powers ranging from 54 to 120 mW. The energy band gap and work function of a-IGZO extracted from the transmittance and ultraviolet photoelectron spectroscopy (UPS) measurement data confirm that different energy band structures for the ITO electrode/a-IGZO channel were established depending on the laser annealing conditions. Based on these observations, the electron injection mechanism from ITO electrodes to a-IGZO channels was analyzed. The results show that the selective laser annealing process can improve the electrical performance of the a-IGZO TFTs without any thermal damage to the substrate.
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Affiliation(s)
- Sang Yeon Park
- Department of Electronics Engineering, Gachon University, Seongnam City 13120, Republic of Korea; (S.Y.P.); (Y.C.); (D.H.L.); (H.Y.); (S.J.K.)
| | - Younggon Choi
- Department of Electronics Engineering, Gachon University, Seongnam City 13120, Republic of Korea; (S.Y.P.); (Y.C.); (D.H.L.); (H.Y.); (S.J.K.)
| | - Yong Hyeok Seo
- Department of Electronics Engineering, Gachon University, Seongnam City 13120, Republic of Korea; (S.Y.P.); (Y.C.); (D.H.L.); (H.Y.); (S.J.K.)
| | - Hojun Kim
- Department of Mechanical Engineering, Gachon University, Seongnam City 13120, Republic of Korea; (H.K.); (P.L.T.)
| | - Dong Hyun Lee
- Department of Electronics Engineering, Gachon University, Seongnam City 13120, Republic of Korea; (S.Y.P.); (Y.C.); (D.H.L.); (H.Y.); (S.J.K.)
| | - Phuoc Loc Truong
- Department of Mechanical Engineering, Gachon University, Seongnam City 13120, Republic of Korea; (H.K.); (P.L.T.)
| | - Yongmin Jeon
- Department of Biomedical Engineering, Gachon University, Seongnam City 13120, Republic of Korea;
| | - Hocheon Yoo
- Department of Electronics Engineering, Gachon University, Seongnam City 13120, Republic of Korea; (S.Y.P.); (Y.C.); (D.H.L.); (H.Y.); (S.J.K.)
| | - Sang Jik Kwon
- Department of Electronics Engineering, Gachon University, Seongnam City 13120, Republic of Korea; (S.Y.P.); (Y.C.); (D.H.L.); (H.Y.); (S.J.K.)
| | - Daeho Lee
- Department of Mechanical Engineering, Gachon University, Seongnam City 13120, Republic of Korea; (H.K.); (P.L.T.)
| | - Eou-Sik Cho
- Department of Electronics Engineering, Gachon University, Seongnam City 13120, Republic of Korea; (S.Y.P.); (Y.C.); (D.H.L.); (H.Y.); (S.J.K.)
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Kang DW, Park SK, Yu YL, Lee Y, Lee DH, Kang S. Effectiveness of next-generation sequencing for patients with advanced non-small-cell lung cancer: a population-based registry study. ESMO Open 2024; 9:102200. [PMID: 38194884 PMCID: PMC10820286 DOI: 10.1016/j.esmoop.2023.102200] [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: 05/10/2023] [Revised: 10/25/2023] [Accepted: 11/17/2023] [Indexed: 01/11/2024] Open
Abstract
BACKGROUND Despite the growing use of next-generation sequencing (NGS) in the management of advanced non-small-cell lung cancer (NSCLC), there is little evidence that its use leads to improved clinical outcomes. This study aimed to compare the effectiveness of NGS with that of single-gene testing (SGT) alone in patients with advanced NSCLC. MATERIALS AND METHODS This was a retrospective cohort study conducted on patients diagnosed with advanced lung adenocarcinoma between 2017 and 2018 from a nationwide, population-based database. We identified patients who had SGT exclusively (SGT group) or underwent upfront NGS or NGS following SGT as an initial evaluation (NGS group). Patients were followed up until death or the end of the study (31 December 2019). The adjusted hazard ratio (aHR) for death was estimated using the Cox proportional hazards model. The factors affecting the adoption of NGS were identified. RESULTS Of 8566 patients diagnosed with advanced lung adenocarcinoma, 402 and 6932 patients were assigned to the NGS and SGT groups, respectively. More NGS was carried out in younger patients, those with higher incomes, and those living in urban areas. After balancing these confounders through matching, no difference was observed in the median overall survival and risk of death between the NGS and SGT groups [18.5 versus 19.7 months, log-rank P = 0.783; aHR 0.98, 95% confidence interval (CI) 0.84-1.14, respectively]. Only in a subgroup for whom epidermal growth factor receptor (EGFR) or anaplastic lymphoma kinase (ALK) inhibitors were not indicated, NGS was associated with better survival outcomes (14.1 versus 9.0 months, log-rank P = 0.006; aHR 0.82, 95% CI 0.69-0.97). CONCLUSIONS In the real world, NGS for all-comers in patients with advanced NSCLC did not increase survival outcomes. When health care resources to support equal access to NGS are limited, upfront SGT followed by NGS may be a more efficient strategy.
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Affiliation(s)
- D-W Kang
- School of Pharmacy, Sungkyunkwan University, Suwon
| | - S-K Park
- College of Pharmacy, The Catholic University of Korea, Bucheon
| | - Y L Yu
- Center for Gynecologic Cancer, Research Institute and Hospital, National Cancer Center, Goyang
| | - Y Lee
- Department of Internal Medicine, National Cancer Center, Goyang
| | - D H Lee
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, Seoul
| | - S Kang
- Center for Gynecologic Cancer, Research Institute and Hospital, National Cancer Center, Goyang; Department of Cancer Control and Policy, Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Republic of Korea.
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Lee DH, Imran M, Choi JH, Park YJ, Kim YH, Min S, Park TJ, Choi YW. CDK4/6 inhibitors induce breast cancer senescence with enhanced anti-tumor immunogenic properties compared with DNA-damaging agents. Mol Oncol 2024; 18:216-232. [PMID: 37854019 PMCID: PMC10766199 DOI: 10.1002/1878-0261.13541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 10/05/2023] [Accepted: 10/17/2023] [Indexed: 10/20/2023] Open
Abstract
Since therapy-induced senescence (TIS) can either support or inhibit cancer progression, identifying which types of chemotherapeutic agents can produce the strongest anti-tumor TIS is an important issue. Here, cyclin-dependent kinase4/6 inhibitors (CDK4/6i)-induced senescence was compared to the TIS induced by conventional DNA-damaging agents. Despite both types of agents eliciting a similar degree of senescence, we observed increased expression of the senescence-associated secretory phenotype (SASP) and ligands related to pro-tumor immunity (IL6, CXCL8, TGFβ, CD274, and CEACAM1) and angiogenesis (VEGFA) mainly in TIS induced by DNA-damaging agents rather than by CDK4/6i. Additionally, although all agents increased the expression of anti-tumor immunomodulatory proteins related to antigen presentation (MHC-I, B2M) and T cell chemokines (CXCL9, 10, 11), CDK4/6i-induced senescent cells still maintained this expression at a similar or even higher intensity than cells treated with DNA-damaging agents, despite the absence of nuclear factor-kappa-B (NF-κB) and p53 activation. These data suggest that in contrast with DNA-damaging agents, which augment the pro-tumorigenic microenvironment via pro-inflammatory SASP, CDK4/6i can generate TIS only with antitumor immunomodulatory proteins.
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Affiliation(s)
- Dong Hyun Lee
- Department of Biochemistry and Molecular BiologyAjou University School of MedicineSuwonKorea
- Department of Biomedical SciencesAjou University Graduate School of MedicineSuwonKorea
- Inflamm‐Aging Translational Research CenterAjou University Medical CenterSuwonKorea
| | - Muhammad Imran
- Department of Biochemistry and Molecular BiologyAjou University School of MedicineSuwonKorea
- Inflamm‐Aging Translational Research CenterAjou University Medical CenterSuwonKorea
| | - Jae Ho Choi
- Inflamm‐Aging Translational Research CenterAjou University Medical CenterSuwonKorea
- Department of Hematology‐OncologyAjou University School of MedicineSuwonKorea
| | - Yoo Jung Park
- Department of Hematology‐OncologyAjou University School of MedicineSuwonKorea
| | - Young Hwa Kim
- Inflamm‐Aging Translational Research CenterAjou University Medical CenterSuwonKorea
| | - Sunwoo Min
- Department of Biological SciencesKorea Advanced Institute of Science and Technology (KAIST)DaejeonKorea
| | - Tae Jun Park
- Department of Biochemistry and Molecular BiologyAjou University School of MedicineSuwonKorea
- Department of Biomedical SciencesAjou University Graduate School of MedicineSuwonKorea
- Inflamm‐Aging Translational Research CenterAjou University Medical CenterSuwonKorea
| | - Yong Won Choi
- Inflamm‐Aging Translational Research CenterAjou University Medical CenterSuwonKorea
- Department of Hematology‐OncologyAjou University School of MedicineSuwonKorea
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Lee DH, Heo H, Suh CH, Shim WH, Kim E, Jo S, Chung SJ, Lee CS, Kim HS, Kim SJ. Improved diagnostic performance of susceptibility-weighted imaging with compressed sensing-sensitivity encoding and neuromelanin-sensitive MRI for Parkinson's disease and atypical Parkinsonism. Clin Radiol 2024; 79:e102-e111. [PMID: 37863747 DOI: 10.1016/j.crad.2023.09.019] [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: 02/07/2023] [Revised: 08/08/2023] [Accepted: 09/18/2023] [Indexed: 10/22/2023]
Abstract
AIM To verify the diagnostic performance of the loss of nigrosome-1 on susceptibility-weighted imaging (SWI) with compressed sensing-sensitivity encoding (CS-SENSE) and neuromelanin on neuromelanin-sensitive (NM) magnetic resonance imaging (MRI) for the diagnosis of Parkinson's disease (PD) and atypical Parkinsonism. MATERIALS AND METHODS A total of 195 patients who underwent MRI between October 2019 and February 2020, including SWI, with or without CS-SENSE, and NM-MRI, were reviewed retrospectively. Two neuroradiologists assessed the loss of nigrosome-1 on SWI and neuromelanin on the NM-MRI. The result of N-3-fluoropropyl-2-beta-carbomethoxy-3-beta-(4-iodophenyl) nortropane positron-emission tomography (PET) was set as the reference standard. RESULTS When CS-SENSE was applied for nigrosome-1 imaging on SWI, the non-diagnostic scan rate was lowered significantly from 19.3% (17/88) to 5.6% (6/107; p=0.004). Diagnosis of PD and atypical Parkinsonism based on the loss of nigrosome-1 on SWI and based on NM-MRI showed good diagnostic value (area under the curve [AUC] 0.821, 95% confidence interval [CI] = 0.755-0.875: AUC 0.832, 95% CI = 0.771-0.882, respectively) with a substantial inter-reader agreement (κ = 0.791 and 0.681, respectively). Combined SWI and neuromelanin had a similar discriminatory ability (AUC 0.830, 95% CI = 0.770-0.880). Similarly, the diagnosis of PD was excellent. CONCLUSIONS CS-SENSE may add value to the diagnostic capability of nigrosome-1 on SWI to reduce the nondiagnostic scan rates. Furthermore, loss of nigrosome-1 on SWI or volume loss of neuromelanin on NM-MRI may be helpful for diagnosing PD.
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Affiliation(s)
- D H Lee
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea; Department of Radiology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - H Heo
- Department of Convergence Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - C H Suh
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea.
| | - W H Shim
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - E Kim
- Philips Healthcare Korea, Seoul, Republic of Korea
| | - S Jo
- Department of Neurology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - S J Chung
- Department of Neurology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - C S Lee
- Department of Neurology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - H S Kim
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - S J Kim
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
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10
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Choi W, Cho YS, Ha YR, Oh JH, Lee H, Kang BS, Kim YW, Koh CY, Lee JH, Jung E, Sohn Y, Kim HB, Kim SJ, Kim H, Suh D, Lee DH, Hong JY, Lee WW. Role of point-of-care ultrasound in critical care and emergency medicine: update and future perspective. Clin Exp Emerg Med 2023; 10:363-381. [PMID: 38225778 PMCID: PMC10790072 DOI: 10.15441/ceem.23.101] [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: 07/29/2023] [Revised: 10/01/2023] [Accepted: 10/05/2023] [Indexed: 01/17/2024] Open
Abstract
Point-of-care ultrasound (POCUS) is a rapidly developing technology that has the potential to revolutionize emergency and critical care medicine. The use of POCUS can improve patient care by providing real-time clinical information. However, appropriate usage and proper training are crucial to ensure patient safety and reliability. This article discusses the various applications of POCUS in emergency and critical care medicine, the importance of training and education, and the future of POCUS in medicine.
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Affiliation(s)
- Wookjin Choi
- Department of Emergency Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea
| | - Young Soon Cho
- Department of Emergency Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Young Rock Ha
- Department of Intensive Care Medicine, Seongnam Citizens Medical Center, Seongnam, Korea
| | - Je Hyeok Oh
- Department of Emergency Medicine, Chung-Ang University College of Medicine, Seoul, Korea
| | - Heekyung Lee
- Department of Emergency Medicine, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Korea
| | - Bo Seung Kang
- Department of Emergency Medicine, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Korea
| | - Yong Won Kim
- Department of Emergency Medicine, Dongguk University Ilsan Hospital, Dongguk University College of Medicine, Goyang, Korea
| | - Chan Young Koh
- Department of Emergency Medicine, Dankook University College of Medicine, Cheonan, Korea
| | - Ji Han Lee
- Department of Emergency Medicine, Uijeongbu St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Korea
| | - Euigi Jung
- Department of Emergency Medicine, VHS Medical Center, Seoul, Korea
| | - Youdong Sohn
- Department of Emergency Medicine, Kangdong Sacred Heart Hospital, Hallym University, Seoul, Korea
| | - Han Bit Kim
- Department of Emergency Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Su Jin Kim
- Department of Emergency Medicine, Korea University College of Medicine, Seoul, Korea
| | - Hohyun Kim
- Department of Trauma and Surgical Critical Care, Pusan National University Hospital, Pusan National University School of Medicine, Busan, Korea
| | - Dongbum Suh
- Department of Emergency Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Dong Hyun Lee
- Department of Intensive Care Medicine, Dong-A University Hospital, Dong-A University College of Medicine, Busan, Korea
| | - Ju Young Hong
- Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Won Woong Lee
- Department of Intensive Care Medicine, Seongnam Citizens Medical Center, Seongnam, Korea
| | - on behalf of the Society Emergency and Critical Care Imaging (SECCI)
- Department of Emergency Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea
- Department of Emergency Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
- Department of Intensive Care Medicine, Seongnam Citizens Medical Center, Seongnam, Korea
- Department of Emergency Medicine, Chung-Ang University College of Medicine, Seoul, Korea
- Department of Emergency Medicine, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Korea
- Department of Emergency Medicine, Dongguk University Ilsan Hospital, Dongguk University College of Medicine, Goyang, Korea
- Department of Emergency Medicine, Dankook University College of Medicine, Cheonan, Korea
- Department of Emergency Medicine, Uijeongbu St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Korea
- Department of Emergency Medicine, VHS Medical Center, Seoul, Korea
- Department of Emergency Medicine, Kangdong Sacred Heart Hospital, Hallym University, Seoul, Korea
- Department of Emergency Medicine, Korea University College of Medicine, Seoul, Korea
- Department of Trauma and Surgical Critical Care, Pusan National University Hospital, Pusan National University School of Medicine, Busan, Korea
- Department of Emergency Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Intensive Care Medicine, Dong-A University Hospital, Dong-A University College of Medicine, Busan, Korea
- Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Korea
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11
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Lee J, Yang K, Kwon JY, Kim JE, Han DI, Lee DH, Yoon JH, Park MH. Role of oxygen vacancies in ferroelectric or resistive switching hafnium oxide. Nano Converg 2023; 10:55. [PMID: 38038784 PMCID: PMC10692067 DOI: 10.1186/s40580-023-00403-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 11/08/2023] [Indexed: 12/02/2023]
Abstract
HfO2 shows promise for emerging ferroelectric and resistive switching (RS) memory devices owing to its excellent electrical properties and compatibility with complementary metal oxide semiconductor technology based on mature fabrication processes such as atomic layer deposition. Oxygen vacancy (Vo), which is the most frequently observed intrinsic defect in HfO2-based films, determines the physical/electrical properties and device performance. Vo influences the polymorphism and the resulting ferroelectric properties of HfO2. Moreover, the switching speed and endurance of ferroelectric memories are strongly correlated to the Vo concentration and redistribution. They also strongly influence the device-to-device and cycle-to-cycle variability of integrated circuits based on ferroelectric memories. The concentration, migration, and agglomeration of Vo form the main mechanism behind the RS behavior observed in HfO2, suggesting that the device performance and reliability in terms of the operating voltage, switching speed, on/off ratio, analog conductance modulation, endurance, and retention are sensitive to Vo. Therefore, the mechanism of Vo formation and its effects on the chemical, physical, and electrical properties in ferroelectric and RS HfO2 should be understood. This study comprehensively reviews the literature on Vo in HfO2 from the formation and influencing mechanism to material properties and device performance. This review contributes to the synergetic advances of current knowledge and technology in emerging HfO2-based semiconductor devices.
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Affiliation(s)
- Jaewook Lee
- Department of Materials Science and Engineering and Inter-University Semiconductor Research Center, College of Engineering, Seoul National University, Gwanak-Ro 1, Gwanak-Gu, Seoul, 08826, Republic of Korea
| | - Kun Yang
- Department of Materials Science and Engineering and Inter-University Semiconductor Research Center, College of Engineering, Seoul National University, Gwanak-Ro 1, Gwanak-Gu, Seoul, 08826, Republic of Korea
| | - Ju Young Kwon
- Electronic Materials Research Center, Korea Institute of Science and Technology (KIST), Seoul, 02791, Republic of Korea
| | - Ji Eun Kim
- Electronic Materials Research Center, Korea Institute of Science and Technology (KIST), Seoul, 02791, Republic of Korea
| | - Dong In Han
- Department of Materials Science and Engineering and Inter-University Semiconductor Research Center, College of Engineering, Seoul National University, Gwanak-Ro 1, Gwanak-Gu, Seoul, 08826, Republic of Korea
| | - Dong Hyun Lee
- Department of Materials Science and Engineering and Inter-University Semiconductor Research Center, College of Engineering, Seoul National University, Gwanak-Ro 1, Gwanak-Gu, Seoul, 08826, Republic of Korea
| | - Jung Ho Yoon
- Electronic Materials Research Center, Korea Institute of Science and Technology (KIST), Seoul, 02791, Republic of Korea.
| | - Min Hyuk Park
- Department of Materials Science and Engineering and Inter-University Semiconductor Research Center, College of Engineering, Seoul National University, Gwanak-Ro 1, Gwanak-Gu, Seoul, 08826, Republic of Korea.
- Research Institute of Advanced Materials, Seoul National University, Gwanak-Ro 1, Gwanak-Gu, Seoul, 08826, Republic of Korea.
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12
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Lee DH, Park KS, Shin HE, Kim SB, Choi H, An SB, Choi H, Kim JP, Han I. Safety and Feasibility of Intradiscal Administration of Matrilin-3-Primed Adipose-Derived Mesenchymal Stromal Cell Spheroids for Chronic Discogenic Low Back Pain: Phase 1 Clinical Trial. Int J Mol Sci 2023; 24:16827. [PMID: 38069151 PMCID: PMC10706656 DOI: 10.3390/ijms242316827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 11/16/2023] [Accepted: 11/22/2023] [Indexed: 12/18/2023] Open
Abstract
Functionally enhanced mesenchymal stromal cells participate in the repair of intervertebral disc. This study aimed to assess the safety and tolerability of intradiscal administration of matrilin-3-primed adipose-derived stromal cell (ASC) spheroids with hyaluronic acid (HA) in patients with chronic discogenic low back pain (LBP). In this single-arm, open-label phase I clinical trial, eight patients with chronic discogenic LBP were observed over 6 months. Each patient underwent a one-time intradiscal injection of 1 mL of 6.0 × 106 cells/disc combined with HA under real-time fluoroscopic guidance. Safety and feasibility were gauged using Visual Analogue Scale (VAS) pain and Oswestry Disability Index (ODI) scores and magnetic resonance imaging. All participants remained in the trial, with no reported adverse events linked to the procedure or stem cells. A successful outcome-marked by a minimum 2-point improvement in the VAS pain score and a 10-point improvement in ODI score from the start were observed in six participants. Although the modified Pfirrmann grade remained consistent across all participants, radiological improvements were evident in four patients. Specifically, two patients exhibited reduced high-intensity zones while another two demonstrated decreased disc protrusion. In conclusion, the intradiscal application of matrilin-3-primed ASC spheroids with HA is a safe and feasible treatment option for chronic discogenic LBP.
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Affiliation(s)
- Dong Hyun Lee
- Department of Neurosurgery, Spine Center, The Leon Wiltse Memorial Hospital, Suwon 16480, Republic of Korea;
- Department of Neurosurgery, CHA Bundang Medical Center, CHA University, Seongnam-si 13496, Republic of Korea
| | - Kwang-Sook Park
- Department of Neurosurgery, CHA Bundang Medical Center, CHA University, Seongnam-si 13496, Republic of Korea
| | - Hae Eun Shin
- Department of Neurosurgery, CHA Bundang Medical Center, CHA University, Seongnam-si 13496, Republic of Korea
| | - Sung Bum Kim
- Department of Neurosurgery, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Hyejeong Choi
- Department of Radiology, CHA Bundang Medical Center, CHA University, Seongnam-si 13496, Republic of Korea
| | - Seong Bae An
- Department of Neurosurgery, CHA Bundang Medical Center, CHA University, Seongnam-si 13496, Republic of Korea
| | - Hyemin Choi
- Department of Neurosurgery, CHA Bundang Medical Center, CHA University, Seongnam-si 13496, Republic of Korea
| | - Joo Pyung Kim
- Department of Neurosurgery, CHA Bundang Medical Center, CHA University, Seongnam-si 13496, Republic of Korea
| | - Inbo Han
- Department of Neurosurgery, CHA Bundang Medical Center, CHA University, Seongnam-si 13496, Republic of Korea
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13
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Adhikari G, Carlin N, Choi JJ, Choi S, Ezeribe AC, França LE, Ha C, Hahn IS, Hollick SJ, Jeon EJ, Jo JH, Joo HW, Kang WG, Kauer M, Kim BH, Kim HJ, Kim J, Kim KW, Kim SH, Kim SK, Kim WK, Kim YD, Kim YH, Ko YJ, Lee DH, Lee EK, Lee H, Lee HS, Lee HY, Lee IS, Lee J, Lee JY, Lee MH, Lee SH, Lee SM, Lee YJ, Leonard DS, Luan NT, Manzato BB, Maruyama RH, Neal RJ, Nikkel JA, Olsen SL, Park BJ, Park HK, Park HS, Park KS, Park SD, Pitta RLC, Prihtiadi H, Ra SJ, Rott C, Shin KA, Cavalcante DFFS, Scarff A, Spooner NJC, Thompson WG, Yang L, Yu GH. Search for Boosted Dark Matter in COSINE-100. Phys Rev Lett 2023; 131:201802. [PMID: 38039466 DOI: 10.1103/physrevlett.131.201802] [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: 06/01/2023] [Accepted: 10/30/2023] [Indexed: 12/03/2023]
Abstract
We search for energetic electron recoil signals induced by boosted dark matter (BDM) from the galactic center using the COSINE-100 array of NaI(Tl) crystal detectors at the Yangyang Underground Laboratory. The signal would be an excess of events with energies above 4 MeV over the well-understood background. Because no excess of events are observed in a 97.7 kg·yr exposure, we set limits on BDM interactions under a variety of hypotheses. Notably, we explored the dark photon parameter space, leading to competitive limits compared to direct dark photon search experiments, particularly for dark photon masses below 4 MeV and considering the invisible decay mode. Furthermore, by comparing our results with a previous BDM search conducted by the Super-Kamionkande experiment, we found that the COSINE-100 detector has advantages in searching for low-mass dark matter. This analysis demonstrates the potential of the COSINE-100 detector to search for MeV electron recoil signals produced by the dark sector particle interactions.
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Affiliation(s)
- G Adhikari
- Department of Physics and Wright Laboratory, Yale University, New Haven, Connecticut 06520, USA
| | - N Carlin
- Physics Institute, University of São Paulo, 05508-090, São Paulo, Brazil
| | - J J Choi
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Republic of Korea
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - S Choi
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Republic of Korea
| | - A C Ezeribe
- Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom
| | - L E França
- Physics Institute, University of São Paulo, 05508-090, São Paulo, Brazil
| | - C Ha
- Department of Physics, Chung-Ang University, Seoul 06973, Republic of Korea
| | - I S Hahn
- Department of Science Education, Ewha Womans University, Seoul 03760, Republic of Korea
- Center for Exotic Nuclear Studies, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
- IBS School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - S J Hollick
- Department of Physics and Wright Laboratory, Yale University, New Haven, Connecticut 06520, USA
| | - E J Jeon
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - J H Jo
- Department of Physics and Wright Laboratory, Yale University, New Haven, Connecticut 06520, USA
| | - H W Joo
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Republic of Korea
| | - W G Kang
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - M Kauer
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - B H Kim
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - H J Kim
- Department of Physics, Kyungpook National University, Daegu 41566, Republic of Korea
| | - J Kim
- Department of Physics, Chung-Ang University, Seoul 06973, Republic of Korea
| | - K W Kim
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - S H Kim
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - S K Kim
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Republic of Korea
| | - W K Kim
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
- IBS School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - Y D Kim
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
- IBS School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
- Department of Physics, Sejong University, Seoul 05006, Republic of Korea
| | - Y H Kim
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
- IBS School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
- Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea
| | - Y J Ko
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - D H Lee
- Department of Physics, Kyungpook National University, Daegu 41566, Republic of Korea
| | - E K Lee
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - H Lee
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
- IBS School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - H S Lee
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
- IBS School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - H Y Lee
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - I S Lee
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - J Lee
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - J Y Lee
- Department of Physics, Kyungpook National University, Daegu 41566, Republic of Korea
| | - M H Lee
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
- IBS School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - S H Lee
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
- IBS School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - S M Lee
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Republic of Korea
| | - Y J Lee
- Department of Physics, Chung-Ang University, Seoul 06973, Republic of Korea
| | - D S Leonard
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - N T Luan
- Department of Physics, Kyungpook National University, Daegu 41566, Republic of Korea
| | - B B Manzato
- Physics Institute, University of São Paulo, 05508-090, São Paulo, Brazil
| | - R H Maruyama
- Department of Physics and Wright Laboratory, Yale University, New Haven, Connecticut 06520, USA
| | - R J Neal
- Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom
| | - J A Nikkel
- Department of Physics and Wright Laboratory, Yale University, New Haven, Connecticut 06520, USA
| | - S L Olsen
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - B J Park
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
- IBS School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - H K Park
- Department of Accelerator Science, Korea University, Sejong 30019, Republic of Korea
| | - H S Park
- Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea
| | - K S Park
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - S D Park
- Department of Physics, Kyungpook National University, Daegu 41566, Republic of Korea
| | - R L C Pitta
- Physics Institute, University of São Paulo, 05508-090, São Paulo, Brazil
| | - H Prihtiadi
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - S J Ra
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - C Rott
- Department of Physics, Sungkyunkwan University, Suwon 16419, Republic of Korea
- Department of Physics and Astronomy, University of Utah, Salt Lake City, Utah 84112, USA
| | - K A Shin
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - D F F S Cavalcante
- Physics Institute, University of São Paulo, 05508-090, São Paulo, Brazil
| | - A Scarff
- Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom
| | - N J C Spooner
- Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom
| | - W G Thompson
- Department of Physics and Wright Laboratory, Yale University, New Haven, Connecticut 06520, USA
| | - L Yang
- Department of Physics, University of California San Diego, La Jolla, California 92093, USA
| | - G H Yu
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
- Department of Physics, Sungkyunkwan University, Suwon 16419, Republic of Korea
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14
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Shin JS, Kim TG, Kim YH, Eom SY, Park SH, Lee DH, Park TJ, Park SS, Kim JH. Senescent tumor cells in colorectal cancer are characterized by elevated enzymatic activity of complexes 1 and 2 in oxidative phosphorylation. J Pathol Transl Med 2023; 57:305-314. [PMID: 37926982 PMCID: PMC10660360 DOI: 10.4132/jptm.2023.10.09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 10/05/2023] [Accepted: 10/09/2023] [Indexed: 11/07/2023] Open
Abstract
BACKGROUND Cellular senescence is defined as an irreversible cell cycle arrest caused by various internal and external insults. While the metabolic dysfunction of senescent cells in normal tissue is relatively well-established, there is a lack of information regarding the metabolic features of senescent tumor cells. METHODS Publicly available single-cell RNA-sequencing data from the GSE166555 and GSE178341 datasets were utilized to investigate the metabolic features of senescent tumor cells. To validate the single-cell RNA-sequencing data, we performed senescence-associated β-galactosidase (SA-β-Gal) staining to identify senescent tumor cells in fresh frozen colorectal cancer tissue. We also evaluated nicotinamide adenine dinucleotide dehydrogenase-tetrazolium reductase (NADH-TR) and succinate dehydrogenase (SDH) activity using enzyme histochemical methods and compared the staining with SA-β-Gal staining. MTT assay was performed to reveal the complex 1 activity of the respiratory chain in in-vitro senescence model. RESULTS Single-cell RNA-sequencing data revealed an upregulation in the activity of complexes 1 and 2 in oxidative phosphorylation, despite overall mitochondrial dysfunction in senescent tumor cells. Both SA-β-Gal and enzyme histochemical staining using fresh frozen colorectal cancer tissues indicated a high correlation between SA-β-Gal positivity and NADH-TR/SDH staining positivity. MTT assay showed that senescent colorectal cancer cells exhibit higher absorbance in 600 nm wavelength. CONCLUSIONS Senescent tumor cells exhibit distinct metabolic features, characterized by upregulation of complexes 1 and 2 in the oxidative phosphorylation pathway. NADH-TR and SDH staining represent efficient methods for detecting senescent tumor cells in colorectal cancer.
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Affiliation(s)
- Jun Sang Shin
- Department of Surgery, Ajou University School of Medicine, Suwon, Korea
| | - Tae-Gyu Kim
- Department of Pathology, Ajou University School of Medicine, Suwon, Korea
| | - Young Hwa Kim
- Department of Pathology, Ajou University School of Medicine, Suwon, Korea
- Inflamm-Aging Translational Research Center, Ajou University Hospital, Suwon, Korea
| | - So Yeong Eom
- Department of Pathology, Ajou University School of Medicine, Suwon, Korea
| | - So Hyun Park
- Department of Pathology, Ajou University School of Medicine, Suwon, Korea
- Inflamm-Aging Translational Research Center, Ajou University Hospital, Suwon, Korea
| | - Dong Hyun Lee
- Inflamm-Aging Translational Research Center, Ajou University Hospital, Suwon, Korea
- Department of Biochemistry and Molecular Biology, Ajou University School of Medicine, Suwon, Korea
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon, Korea
| | - Tae Jun Park
- Inflamm-Aging Translational Research Center, Ajou University Hospital, Suwon, Korea
- Department of Biochemistry and Molecular Biology, Ajou University School of Medicine, Suwon, Korea
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon, Korea
| | - Soon Sang Park
- Inflamm-Aging Translational Research Center, Ajou University Hospital, Suwon, Korea
- Department of Biochemistry and Molecular Biology, Ajou University School of Medicine, Suwon, Korea
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon, Korea
| | - Jang-Hee Kim
- Department of Pathology, Ajou University School of Medicine, Suwon, Korea
- Inflamm-Aging Translational Research Center, Ajou University Hospital, Suwon, Korea
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon, Korea
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15
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Lee DH, Rabeel M, Han Y, Kim H, Khan MF, Kim DK, Yoo H. Self-Assembled Monolayer Doping for MoTe 2 Field-Effect Transistors: Overcoming PN Doping Challenges in Transition Metal Dichalcogenides. ACS Appl Mater Interfaces 2023. [PMID: 37878262 DOI: 10.1021/acsami.3c11430] [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] [Subscribe] [Scholar Register] [Indexed: 10/26/2023]
Abstract
Transition metal dichalcogenides (TMDs) have gained significant attention as next-generation semiconductor materials that could potentially overcome the integration limits of silicon-based electronic devices. However, a challenge in utilizing TMDs as semiconductors is the lack of an established PN doping method to effectively control their electrical properties, unlike those of silicon-based semiconductors. Conventional PN doping methods, such as ion implantation, can induce lattice damage in TMDs. Thus, chemical doping methods that can control the Schottky barrier while minimizing lattice damage are desirable. Here, we focus on the molybdenum ditelluride (2H-MoTe2), which has a hexagonal phase and exhibits ambipolar field-effect transistor (FET) properties due to its direct band gap of 1.1 eV, enabling concurrent transport of electrons and holes. We demonstrate the fabrication of p- or n-type unipolar FETs in ambipolar MoTe2 FETs using self-assembled monolayers (SAMs) as chemical dopants. Specifically, we employ 1H,1H,2H,2H perfluorooctyltriethoxysilane and (3-aminopropyl)triethoxysilane as SAMs for chemical doping. The selective SAMs effectively increase the hole and electron charge transport capabilities in MoTe2 FETs by 18.4- and 4.6-fold, respectively, due to the dipole effect of the SAMs. Furthermore, the Raman shift of MoTe2 by SAM coating confirms the successful p- and n-type doping. Finally, we demonstrate the fabrication of complementary inverters using SAMs-doped MoTe2 FETs, which exhibit clear full-swing capability compared to undoped complementary inverters.
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Affiliation(s)
- Dong Hyun Lee
- Electronic Engineering, Gachon University, 1342 Seongnam-daero, Seongnam 13120, Republic of Korea
| | - Muhammad Rabeel
- Department of Electrical Engineering, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul 05006, Korea
- Department of Convergence Engineering for Intelligent Drone, Sejong University, Seoul 05006, Korea
| | - Youngmin Han
- Electronic Engineering, Gachon University, 1342 Seongnam-daero, Seongnam 13120, Republic of Korea
| | - Honggyun Kim
- Department of Semiconductor Systems Engineering, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul 05006, Korea
| | - Muhammad Farooq Khan
- Department of Electrical Engineering, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul 05006, Korea
| | - Deok-Kee Kim
- Department of Semiconductor Systems Engineering, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul 05006, Korea
- Department of Convergence Engineering for Intelligent Drone, Sejong University, Seoul 05006, Korea
| | - Hocheon Yoo
- Electronic Engineering, Gachon University, 1342 Seongnam-daero, Seongnam 13120, Republic of Korea
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Nam JY, Tokmurzin D, Yoon SM, Ra HW, Lee JG, Lee DH, Seo MW. Carbon dioxide gasification characteristics of disposable COVID-19 masks using bubbling fluidized bed reactor. Environ Res 2023; 235:116669. [PMID: 37453506 DOI: 10.1016/j.envres.2023.116669] [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] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 07/09/2023] [Accepted: 07/13/2023] [Indexed: 07/18/2023]
Abstract
The global demand for masks has increased significantly owing to COVID-19 and mutated viruses, resulting in a massive amount of mask waste of approximately 490,000 tons per month. Mask waste recycling is challenging because of the composition of multicomponent polymers and iron, which puts them at risk of viral infection. Conventional treatment methods also cause environmental pollution. Gasification is an effective method for processing multicomponent plastics and obtaining syngas for various applications. This study investigated the carbon dioxide gasification and tar removal characteristics of an activated carbon bed using a 1-kg/h laboratory-scale bubble fluidized bed gasifier. The syngas composition was analyzed as 10.52 vol% of hydrogen, 6.18 vol% of carbon monoxide, 12.05 vol% of methane, and 14.44 vol% of hydrocarbons (C2-C3). The results of carbon dioxide gasification with activated carbon showed a tar-reduction efficiency of 49%, carbon conversion efficiency of 45.16%, and cold gas efficiency of 88.92%. This study provides basic data on mask waste carbon dioxide gasification using greenhouse gases as useful product gases.
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Affiliation(s)
- Ji Young Nam
- School of Chemical Engineering, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangangu, Suwon, Gyeonggi-do, 16419, Republic of Korea; Climate Change Research Division, Korea Institute of Energy Research (KIER), 152 Gajeong-ro, Yuseong-gu, Daejeon, 34129, Republic of Korea
| | - Diyar Tokmurzin
- Climate Change Research Division, Korea Institute of Energy Research (KIER), 152 Gajeong-ro, Yuseong-gu, Daejeon, 34129, Republic of Korea
| | - Sung Min Yoon
- Climate Change Research Division, Korea Institute of Energy Research (KIER), 152 Gajeong-ro, Yuseong-gu, Daejeon, 34129, Republic of Korea
| | - Ho Won Ra
- Climate Change Research Division, Korea Institute of Energy Research (KIER), 152 Gajeong-ro, Yuseong-gu, Daejeon, 34129, Republic of Korea
| | - Jae Goo Lee
- Climate Change Research Division, Korea Institute of Energy Research (KIER), 152 Gajeong-ro, Yuseong-gu, Daejeon, 34129, Republic of Korea
| | - Dong Hyun Lee
- School of Chemical Engineering, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangangu, Suwon, Gyeonggi-do, 16419, Republic of Korea.
| | - Myung Won Seo
- School of Environmental Engineering, University of Seoul, 163 Seoulsiripdae-ro, Dongdaemun-gu, Seoul, Republic of Korea.
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17
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Yeom S, Lee DH, Lim SC. Clinical outcomes of sinonasal inverted papilloma: a retrospective analysis of 139 cases. J Laryngol Otol 2023; 137:1154-1157. [PMID: 36876322 DOI: 10.1017/s0022215123000361] [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] [Indexed: 03/07/2023]
Abstract
OBJECTIVES Sinonasal inverted papilloma has a high tendency for recurrence, local bone destruction and risk of malignant transformation. Therefore, complete resection of the tumour is required, and close follow up is essential. This article describes the clinical outcomes, recurrence rate and malignant transformation rate of sinonasal inverted papilloma. METHODS In this study, 139 patients diagnosed with sinonasal inverted papilloma in our hospital from December 2010 to May 2022 were retrospectively analysed. All patients underwent endoscopic surgery. RESULTS Sinonasal inverted papilloma occurred more often in males than in females. The mean age of patients with sinonasal inverted papilloma was 67.3 ± 5.7 years at diagnosis. The most prevalent site of origin was the maxillary sinus (50.4 per cent). The recurrence rate was 5.75 per cent, and the malignant transformation rate was 6.5 per cent. CONCLUSION All patients in this study underwent endoscopic surgery. Meticulous resection and regular long-term follow ups are crucial to reducing sinonasal inverted papilloma recurrence after surgery.
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Affiliation(s)
- S Yeom
- Department of Otolaryngology - Head and Neck Surgery, Chonnam National University Medical School and Hwasun Hospital, Hwasun, South Korea
| | - D H Lee
- Department of Otolaryngology - Head and Neck Surgery, Chonnam National University Medical School and Hwasun Hospital, Hwasun, South Korea
| | - S C Lim
- Department of Otolaryngology - Head and Neck Surgery, Chonnam National University Medical School and Hwasun Hospital, Hwasun, South Korea
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18
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Wong YJ, Tran S, Huang CF, Hsu YC, Preda C, Toyoda H, Liu J, Jun DW, Landis C, Huang DQ, Gila A, Negoita L, Yasuda S, Tseng CH, Tsai PC, Uojima H, Nozaki A, Chuma M, Atsukawa M, Ishigami M, Itokawa N, Iio E, Lam CPM, Watanabe T, Asai A, Yokohama K, Abe H, Enomoto M, Kawada N, Tamori A, Lee DH, Jun MJ, Do S, Vo DKH, Liu L, Li J, Ji F, Wang W, Li Y, Wang X, Guo F, Xu Q, Jing L, Ye Q, Pan H, Zhang J, Wen X, Wang Q, Ren H, Cai D, Shang J, Liu J, Lu C, Zang W, Li J, Niu J, Zhang M, Wu C, Huang R, Maeda M, Nakanishi A, Yeh ML, Chuang WL, Huang JF, Dai C, Ishikawa T, Takaguchi K, Senoh T, Trinh HN, Takahashi H, Eguchi Y, Quek SXZ, Haga H, Ogawa E, Wong G, Buti M, Fukunishi S, Ueno Y, Yuen MF, Tanaka Y, Lim SG, Cheung R, Yu ML, Nguyen MH. Real-world treatment outcome with protease inhibitor direct-acting antiviral in advanced hepatitis C cirrhosis: a REAL-C study. Hepatol Int 2023; 17:1150-1161. [PMID: 37273170 DOI: 10.1007/s12072-023-10547-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 05/04/2023] [Indexed: 06/06/2023]
Abstract
INTRODUCTION Current guidelines discourage the use of direct-acting antiviral (DAA) containing protease-inhibitor (PI) in advanced HCV cirrhosis. We aimed to compare the real-world tolerability of PI vs. non-PI DAA regimens in this population. METHODS We identified advanced cirrhosis patients treated with DAA from the REAL-C registry. The primary outcome was significant worsening or improvement in CPT or MELD scores following DAA treatment. RESULTS From the REAL-C registry of 15,837 patients, we included 1077 advanced HCV cirrhosis patients from 27 sites. 42% received PI-based DAA. Compared to non-PI group, the PI group was older, had higher MELD and higher percentage with kidney disease. Inverse probability of treatment weighting (IPTW; matching on age, sex, history of clinical decompensation, MELD, platelet, albumin, Asia site, Asian ethnicity, hypertension, hemoglobin, genotype, liver cancer, ribavirin) was used to balance the two groups. In the IPTW-matched cohorts, the PI and non-PI groups had similar SVR12 (92.9% vs. 90.7%, p = 0.30), similar percentages of significant worsening in CTP or MELD scores at posttreatment week 12 and 24 (23.9% vs. 13.1%, p = 0.07 and 16.5% vs. 14.6%, p = 0.77), and similar frequency of new HCC, decompensating event, and death by posttreatment week 24. In multivariable analysis, PI-based DAA was not associated with significant worsening (adjusted odds ratio = 0.82, 95% CI 0.38-1.77). CONCLUSION Tolerability and treatment outcomes were not significantly different in advanced HCV cirrhosis treated with PI-based (vs. non-PI) DAA up to CTP-B or MELD score of 15. Safety of PI-based DAA in those with CTP-C or MELD beyond 15 awaits further data.
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Affiliation(s)
- Yu Jun Wong
- Gastroenterology and Hepatology, Changi General Hospital, SingHealth, Singapore, Singapore
- SingHealth Duke-NUS Medicine Academic Clinical Program, Singapore, Singapore
| | - Sally Tran
- Division of Gastroenterology and Hepatology, Department of Medicine, Stanford University Medical Center, Palo Alto, CA, USA
| | - Chung-Feng Huang
- Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, and Hepatitis Research Center, College of Medicine and Cohort Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
- College of Medicine, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - Yao-Chun Hsu
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, E-Da Cancer Hospital, Kaohsiung, Taiwan
| | - Carmen Preda
- Clinical Institute of Fundeni, Gastroenterology and Hepatology, Bucharest, Romania
| | - Hidenori Toyoda
- Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan
| | - Joanne Liu
- Division of Gastroenterology and Hepatology, University of Washington, Seattle, WA, USA
| | - Dae Won Jun
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Republic of Korea
| | - Charles Landis
- Division of Gastroenterology and Hepatology, University of Washington, Seattle, WA, USA
| | - Daniel Q Huang
- Division of Gastroenterology and Hepatology, Department of Medicine, National University Hospital, Singapore, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Andrei Gila
- Clinical Institute of Fundeni, Gastroenterology and Hepatology, Bucharest, Romania
| | - Livia Negoita
- Clinical Institute of Fundeni, Gastroenterology and Hepatology, Bucharest, Romania
| | - Satoshi Yasuda
- Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan
| | - Cheng-Hao Tseng
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, E-Da Cancer Hospital, Kaohsiung, Taiwan
| | - Pei-Chien Tsai
- Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, and Hepatitis Research Center, College of Medicine and Cohort Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
- College of Medicine, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - Haruki Uojima
- Department of Gastroenterology, Internal Medicine, Kitasato University School of Medicine, Sagamihara, Japan
| | - Akito Nozaki
- Gastroenterological Center, Yokohama City University Medical Center, Yokohama, Japan
| | - Makoto Chuma
- Gastroenterological Center, Yokohama City University Medical Center, Yokohama, Japan
| | - Masanori Atsukawa
- Division of Gastroenterology and Hepatology, Nippon Medical School, Tokyo, Japan
| | - Masatoshi Ishigami
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Norio Itokawa
- Division of Gastroenterology and Hepatology, Nippon Medical School, Tokyo, Japan
| | - Etsuko Iio
- Virology and Liver Unit, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Carla Pui-Mei Lam
- Department of Medicine, School of Clinical Medicine, The University of Hong Kong, Hong Kong, China
| | - Tsunamasa Watanabe
- Division of Gastroenterology and Hepatology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Akira Asai
- 2nd Department of Internal Medicine, Osaka Medical College, Osaka, Japan
| | - Keisuke Yokohama
- 2nd Department of Internal Medicine, Osaka Medical College, Osaka, Japan
| | - Hiroshi Abe
- Division of Gastroenterology and Hepatology, Shinmatsudo Central General Hospital, Chiba, Japan
| | - Masaru Enomoto
- Department of Hepatology, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Norifumi Kawada
- Department of Hepatology, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Akihiro Tamori
- Department of Hepatology, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Dong Hyun Lee
- Department of Gastroenterology, Good Gang-An Hospital, Busan, South Korea
| | - Mi Jung Jun
- Department of Gastroenterology, Good Gang-An Hospital, Busan, South Korea
| | - Son Do
- Digestive Health Associates of Texas, Plano, TX, USA
| | - Dang K H Vo
- Digestive Health Associates of Texas, Plano, TX, USA
| | - Li Liu
- Department of Hepatology, The Third People's Hospital of Kunming City, Kunming, China
| | - Junyi Li
- Department of Hepatology, The Third People's Hospital of Kunming City, Kunming, China
| | - Fanpu Ji
- Department of Infectious Diseases, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Wenjun Wang
- Department of Infectious Diseases, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yu Li
- Department of Infectious Diseases, Shaanxi Provincial People's Hospital, Xi'an, China
| | - Xiaozhong Wang
- Affiliated Traditional Chinese Medicine Hospital of Xinjiang Medical University, Urumqi, China
| | - Fen Guo
- Affiliated Traditional Chinese Medicine Hospital of Xinjiang Medical University, Urumqi, China
| | - Qiang Xu
- Affiliated Traditional Chinese Medicine Hospital of Xinjiang Medical University, Urumqi, China
| | - Liang Jing
- Department of Gastroenterology and Hepatology, The Third Central Hospital of Tianjin, Tianjin, China
| | - Qing Ye
- Department of Gastroenterology and Hepatology, The Third Central Hospital of Tianjin, Tianjin, China
| | - Hongying Pan
- Department of Hepatology, Zhejiang Provincial People's Hospital Affiliated to Zhejiang University, Hangzhou, China
| | - JiaJie Zhang
- Department of Hepatology, Zhejiang Provincial People's Hospital Affiliated to Zhejiang University, Hangzhou, China
| | - Xie Wen
- Center of Liver Diseases, Beijing Ditan Hospital Affiliated to Capital Medical University, Beijing, China
| | - Qi Wang
- Center of Liver Diseases, Beijing Ditan Hospital Affiliated to Capital Medical University, Beijing, China
| | - Hong Ren
- Department of Infectious Diseases, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Dachuan Cai
- Department of Infectious Diseases, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jia Shang
- Department of Infectious Diseases, Henan Provincial People's Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Junping Liu
- Department of Infectious Diseases, Henan Provincial People's Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Chengzheng Lu
- Department of Gastroenterology and Hepatology, The Second People's Hospital of Tianjin, Tianjin, China
| | - Wenqian Zang
- Department of Gastroenterology and Hepatology, The Second People's Hospital of Tianjin, Tianjin, China
| | - Jia Li
- Department of Gastroenterology and Hepatology, The Second People's Hospital of Tianjin, Tianjin, China
| | - Junqi Niu
- Department of Hepatology, The First Hospital of Jilin University, Changchun, China
| | - Mingyuan Zhang
- Department of Hepatology, The First Hospital of Jilin University, Changchun, China
| | - Chao Wu
- Department of Infectious Diseases, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Rui Huang
- Department of Infectious Diseases, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Mayumi Maeda
- Division of Gastroenterology and Hepatology, Department of Medicine, Stanford University Medical Center, Palo Alto, CA, USA
| | - Akiko Nakanishi
- Division of Gastroenterology and Hepatology, Department of Medicine, Stanford University Medical Center, Palo Alto, CA, USA
- Department of Gastroenterology, Faculty of Medicine, Yamagata University, Yamagata, China
| | - Ming-Lun Yeh
- Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, and Hepatitis Research Center, College of Medicine and Cohort Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
- College of Medicine, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - Wan-Long Chuang
- Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, and Hepatitis Research Center, College of Medicine and Cohort Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
- College of Medicine, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - Jee-Fu Huang
- Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, and Hepatitis Research Center, College of Medicine and Cohort Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
- College of Medicine, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - ChiaYen Dai
- Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, and Hepatitis Research Center, College of Medicine and Cohort Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
- College of Medicine, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - Toru Ishikawa
- Department of Gastroenterology, Saiseikai Niigata Hospital, Niigata, Japan
| | - Koichi Takaguchi
- Department of Hepatology, Kagawa Prefectural Central Hospital, Takamatsu, Kagawa, Japan
| | - Tomonori Senoh
- Department of Hepatology, Kagawa Prefectural Central Hospital, Takamatsu, Kagawa, Japan
| | - Huy N Trinh
- San Jose Gastroenterology, San Jose, CA, USA
| | - Hirokazu Takahashi
- Liver Center, Saga University Hospital, Saga, Japan
- Division of Metabolism and Endocrinology, Faculty of Medicine, Saga University, Saga, Japan
| | - Yuichiro Eguchi
- Liver Center, Saga University Hospital, Saga, Japan
- Division of Metabolism and Endocrinology, Faculty of Medicine, Saga University, Saga, Japan
| | - Sabrina Xin Zi Quek
- Division of Gastroenterology and Hepatology, Department of Medicine, National University Hospital, Singapore, Singapore
| | - Hiroaki Haga
- Department of Gastroenterology, Faculty of Medicine, Yamagata University, Yamagata, China
| | - Eiichi Ogawa
- Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan
| | - Grace Wong
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, China
- State Key Laboratory of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, China
| | - Maria Buti
- Liver Unit, Department of Internal Medicine, Hospital Universiti Valle d'Hebron and Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Shinya Fukunishi
- 2nd Department of Internal Medicine, Osaka Medical College, Osaka, Japan
| | - Yoshiyuki Ueno
- Department of Gastroenterology, Faculty of Medicine, Yamagata University, Yamagata, China
| | - Man-Fung Yuen
- Department of Medicine, School of Clinical Medicine, The University of Hong Kong, Hong Kong, China
- State Key Laboratory of Liver Research, The University of Hong Kong, Hong Kong, China
| | - Yasuhito Tanaka
- Virology and Liver Unit, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
- Department of Gastroenterology and Hepatology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Seng Gee Lim
- Division of Gastroenterology and Hepatology, Department of Medicine, National University Hospital, Singapore, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Ramsey Cheung
- Division of Gastroenterology and Hepatology, Department of Medicine, Stanford University Medical Center, Palo Alto, CA, USA
- Division of Gastroenterology and Hepatology, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA
| | - Ming-Lung Yu
- Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, and Hepatitis Research Center, College of Medicine and Cohort Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
- College of Medicine, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - Mindie H Nguyen
- Division of Gastroenterology and Hepatology, Department of Medicine, Stanford University Medical Center, Palo Alto, CA, USA.
- Department of Epidemiology and Population Health, Stanford University, Stanford, CA, USA.
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Park JY, Choe DH, Lee DH, Yu GT, Yang K, Kim SH, Park GH, Nam SG, Lee HJ, Jo S, Kuh BJ, Ha D, Kim Y, Heo J, Park MH. Revival of Ferroelectric Memories Based on Emerging Fluorite-Structured Ferroelectrics. Adv Mater 2023; 35:e2204904. [PMID: 35952355 DOI: 10.1002/adma.202204904] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/25/2022] [Indexed: 06/15/2023]
Abstract
Over the last few decades, the research on ferroelectric memories has been limited due to their dimensional scalability and incompatibility with complementary metal-oxide-semiconductor (CMOS) technology. The discovery of ferroelectricity in fluorite-structured oxides revived interest in the research on ferroelectric memories, by inducing nanoscale nonvolatility in state-of-the-art gate insulators by minute doping and thermal treatment. The potential of this approach has been demonstrated by the fabrication of sub-30 nm electronic devices. Nonetheless, to realize practical applications, various technical limitations, such as insufficient reliability including endurance, retention, and imprint, as well as large device-to-device-variation, require urgent solutions. Furthermore, such limitations should be considered based on targeting devices as well as applications. Various types of ferroelectric memories including ferroelectric random-access-memory, ferroelectric field-effect-transistor, and ferroelectric tunnel junction should be considered for classical nonvolatile memories as well as emerging neuromorphic computing and processing-in-memory. Therefore, from the viewpoint of materials science, this review covers the recent research focusing on ferroelectric memories from the history of conventional approaches to future prospects.
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Affiliation(s)
- Ju Yong Park
- Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea
| | - Duk-Hyun Choe
- Beyond Silicon Lab, Samsung Advanced Institute of Technology (SAIT), Suwon, 16678, Republic of Korea
| | - Dong Hyun Lee
- Department of Materials Science and Engineering and Inter-University Semiconductor Research Center, College of Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Geun Taek Yu
- School of Materials Science and Engineering, Pusan National University, Busan, 46241, Republic of Korea
| | - Kun Yang
- Department of Materials Science and Engineering and Inter-University Semiconductor Research Center, College of Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Se Hyun Kim
- Department of Materials Science and Engineering and Inter-University Semiconductor Research Center, College of Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Geun Hyeong Park
- Department of Materials Science and Engineering and Inter-University Semiconductor Research Center, College of Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Seung-Geol Nam
- Beyond Silicon Lab, Samsung Advanced Institute of Technology (SAIT), Suwon, 16678, Republic of Korea
| | - Hyun Jae Lee
- Beyond Silicon Lab, Samsung Advanced Institute of Technology (SAIT), Suwon, 16678, Republic of Korea
| | - Sanghyun Jo
- Beyond Silicon Lab, Samsung Advanced Institute of Technology (SAIT), Suwon, 16678, Republic of Korea
| | - Bong Jin Kuh
- Semiconductor Research and Development Center, Samsung Electronics, Hwaseong, 18448, Republic of Korea
| | - Daewon Ha
- Semiconductor Research and Development Center, Samsung Electronics, Hwaseong, 18448, Republic of Korea
| | - Yongsung Kim
- Beyond Silicon Lab, Samsung Advanced Institute of Technology (SAIT), Suwon, 16678, Republic of Korea
| | - Jinseong Heo
- Beyond Silicon Lab, Samsung Advanced Institute of Technology (SAIT), Suwon, 16678, Republic of Korea
| | - Min Hyuk Park
- Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea
- Department of Materials Science and Engineering and Inter-University Semiconductor Research Center, College of Engineering, Seoul National University, Seoul, 08826, Republic of Korea
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20
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Cho KJ, Kim JS, Lee DH, Lee SM, Song MJ, Lim SY, Cho YJ, Jo YH, Shin Y, Lee YJ. Prospective, multicenter validation of the deep learning-based cardiac arrest risk management system for predicting in-hospital cardiac arrest or unplanned intensive care unit transfer in patients admitted to general wards. Crit Care 2023; 27:346. [PMID: 37670324 PMCID: PMC10481524 DOI: 10.1186/s13054-023-04609-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 08/10/2023] [Indexed: 09/07/2023] Open
Abstract
BACKGROUND Retrospective studies have demonstrated that the deep learning-based cardiac arrest risk management system (DeepCARS™) is superior to the conventional methods in predicting in-hospital cardiac arrest (IHCA). This prospective study aimed to investigate the predictive accuracy of the DeepCARS™ for IHCA or unplanned intensive care unit transfer (UIT) among general ward patients, compared with that of conventional methods in real-world practice. METHODS This prospective, multicenter cohort study was conducted at four teaching hospitals in South Korea. All adult patients admitted to general wards during the 3-month study period were included. The primary outcome was predictive accuracy for the occurrence of IHCA or UIT within 24 h of the alarm being triggered. Area under the receiver operating characteristic curve (AUROC) values were used to compare the DeepCARS™ with the modified early warning score (MEWS), national early warning Score (NEWS), and single-parameter track-and-trigger systems. RESULTS Among 55,083 patients, the incidence rates of IHCA and UIT were 0.90 and 6.44 per 1,000 admissions, respectively. In terms of the composite outcome, the AUROC for the DeepCARS™ was superior to those for the MEWS and NEWS (0.869 vs. 0.756/0.767). At the same sensitivity level of the cutoff values, the mean alarm counts per day per 1,000 beds were significantly reduced for the DeepCARS™, and the rate of appropriate alarms was higher when using the DeepCARS™ than when using conventional systems. CONCLUSION The DeepCARS™ predicts IHCA and UIT more accurately and efficiently than conventional methods. Thus, the DeepCARS™ may be an effective screening tool for detecting clinical deterioration in real-world clinical practice. Trial registration This study was registered at ClinicalTrials.gov ( NCT04951973 ) on June 30, 2021.
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Affiliation(s)
| | - Jung Soo Kim
- Division of Critical Care Medicine, Department of Hospital Medicine, Inha College of Medicine, Incheon, Republic of Korea
| | - Dong Hyun Lee
- Department of Intensive Care Medicine, Dong-A University Hospital, College of Medicine, Busan, Republic of Korea
| | - Sang-Min Lee
- Department of Critical Care Medicine, Seoul National University Hospital, Seoul, Republic of Korea
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Myung Jin Song
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Sung Yoon Lim
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Young-Jae Cho
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - You Hwan Jo
- Department of Emergency Medicine, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | | | - Yeon Joo Lee
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea.
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Lee DH, Lee DG, Park CK, Jang JW, Hwang JS, Kim JY, Cho YE, Lee SW, Lee DC, Han BS, Han SY. Saving Stabilizing Structure Treatment With Bilateral-Contralateral Decompression for Spinal Stenosis in Degenerative Spondylolisthesis Using Unilateral Biportal Endoscopy. Neurospine 2023; 20:931-939. [PMID: 37798987 PMCID: PMC10562235 DOI: 10.14245/ns.2346504.252] [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: 05/06/2023] [Revised: 06/15/2023] [Accepted: 06/19/2023] [Indexed: 10/07/2023] Open
Abstract
OBJECTIVE This study aimed to evaluate the treatment of spinal stenosis with spondylolisthesis using bilateral-contralateral unilateral biportal endoscopic (UBE) decompression to minimize facet joint damage. METHODS We retrospectively evaluated 42 patients with grade 1 spondylolisthesis who underwent bilateral-contralateral UBE decompression between July 2018 and September 2019. To identify segmental instability, static and dynamic images from preoperative and postoperative procedures and final follow-up radiographs were reviewed. Lateral radiograph slippage ratio, sagittal motion, and facet joint preservation were evaluated. Clinical assessments were conducted using the visual analogue scale (VAS), Oswestry Disability Index (ODI), and modified MacNab criteria. RESULTS The average final follow-up period was 26.5 ± 1.3 months. The average preoperative slip percentage was 15.70% ± 5.25%, which worsened to 18.80% ± 5.41% at the final follow-up (p < 0.005). The facet joint preservation rate was 95.6% ± 4.1% on the contralateral side. Improvements in the VAS scores (leg pain: from 7.9 ± 2.2 to 3.1 ± 0.7; p < 0.005; back pain: from 7.2 ± 3.0 to 2.8 ± 1.0; p < 0.005) were observed at the final follow-up. The mean preoperative ODI was 26.19 ± 3.42, which improved to 9.6 ± 1.0 (p < 0.005). Thirteen patients exhibited delayed focal segmental instability following decompression. Despite the absence of symptoms or improvement with conservative treatment in the majority of patients with delayed instability, two patients required fusion surgery to address the instability. Additionally, 2 patients developed facet synovial cysts, while 2 experienced spinous process fractures. CONCLUSION Bilateral decompression with a contralateral UBE approach could be an effective and alternative treatment method to reduce instability in spinal stenosis with grade 1 spondylolisthesis.
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Affiliation(s)
- Dong Hyun Lee
- Department of Neurosurgery, Spine Center, The Leon Wiltse Memorial Hospital, Suwon, Korea
| | - Dong-Geun Lee
- Department of Neurosurgery, Spine Center, The Leon Wiltse Memorial Hospital, Suwon, Korea
| | - Choon Keun Park
- Department of Neurosurgery, Spine Center, The Leon Wiltse Memorial Hospital, Suwon, Korea
| | - Jae-Won Jang
- Department of Neurosurgery, Spine Center, The Leon Wiltse Memorial Hospital, Suwon, Korea
| | - Jin Sub Hwang
- Department of Neurosurgery, Spine Center, The Leon Wiltse Memorial Hospital, Suwon, Korea
| | - Jun Yong Kim
- Department of Neurosurgery, Spine Center, The Leon Wiltse Memorial Hospital, Suwon, Korea
| | - Yong-Eun Cho
- Department of Neurosurgery, Spine Center, The Leon Wiltse Memorial Hospital, Suwon, Korea
| | - Sang Won Lee
- Department of Neurosurgery, Spine Center, The Leon Wiltse Memorial Hospital, Suwon, Korea
| | - Dong Chan Lee
- Department of Neurosurgery, Spine Center, The Leon Wiltse Memorial Hospital, Anyang, Korea
| | - Bang Sang Han
- Department of Neurosurgery, Spine Center, The Leon Wiltse Memorial Hospital, Suwon, Korea
| | - Sang Yeop Han
- Department of Neurosurgery, Spine Center, The Leon Wiltse Memorial Hospital, Suwon, Korea
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22
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Han Y, Lee DH, Cho ES, Kwon SJ, Yoo H. Argon and Oxygen Gas Flow Rate Dependency of Sputtering-Based Indium-Gallium-Zinc Oxide Thin-Film Transistors. Micromachines (Basel) 2023; 14:1394. [PMID: 37512704 PMCID: PMC10383919 DOI: 10.3390/mi14071394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 07/06/2023] [Indexed: 07/30/2023]
Abstract
Oxygen vacancies are a major factor that controls the electrical characteristics of the amorphous indium-gallium-zinc oxide transistor (a-IGZO TFT). Oxygen vacancies are affected by the composition ratio of the a-IGZO target and the injected oxygen flow rate. In this study, we fabricated three types of a-IGZO TFTs with different oxygen flow rates and then investigated changes in electrical characteristics. Atomic force microscopy (AFM) was performed to analyze the surface morphology of the a-IGZO films according to the oxygen gas rate. Furthermore, X-ray photoelectron spectroscopy (XPS) analysis was performed to confirm changes in oxygen vacancies of a-IGZO films. The optimized a-IGZO TFT has enhanced electrical characteristics such as carrier mobility (μ) of 12.3 cm2/V·s, on/off ratio of 1.25 × 1010 A/A, subthreshold swing (S.S.) of 3.7 V/dec, and turn-on voltage (Vto) of -3 V. As a result, the optimized a-IGZO TFT has improved electrical characteristics with oxygen vacancies having the highest conductivity.
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Affiliation(s)
- Youngmin Han
- Department of Electronic Engineering, Gachon University, Seongnam 13120, Republic of Korea
| | - Dong Hyun Lee
- Department of Electronic Engineering, Gachon University, Seongnam 13120, Republic of Korea
| | - Eou-Sik Cho
- Department of Electronic Engineering, Gachon University, Seongnam 13120, Republic of Korea
| | - Sang Jik Kwon
- Department of Electronic Engineering, Gachon University, Seongnam 13120, Republic of Korea
| | - Hocheon Yoo
- Department of Electronic Engineering, Gachon University, Seongnam 13120, Republic of Korea
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23
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Kim I, Seo J, Lee DH, Kim YH, Kim JH, Wie MB, Byun JK, Yun JH. Ulmus davidiana 60% edible ethanolic extract for prevention of pericyte apoptosis in diabetic retinopathy. Front Endocrinol (Lausanne) 2023; 14:1138676. [PMID: 37234799 PMCID: PMC10206296 DOI: 10.3389/fendo.2023.1138676] [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] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 04/19/2023] [Indexed: 05/28/2023] Open
Abstract
Diabetic retinopathy (DR) is a disease that causes visual deficiency owing to vascular leakage or abnormal angiogenesis. Pericyte apoptosis is considered one of the main causes of vascular leakage in diabetic retina, but there are few known therapeutic agents that prevent it. Ulmus davidiana is a safe natural product that has been used in traditional medicine and is attracting attention as a potential treatment for various diseases, but its effect on pericyte loss or vascular leakage in DR is not known at all. In the present study, we investigated on the effects of 60% edible ethanolic extract of U. davidiana (U60E) and catechin 7-O-β-D-apiofuranoside (C7A), a compound of U. davidiana, on pericyte survival and endothelial permeability. U60E and C7A prevented pericyte apoptosis by inhibiting the activation of p38 and JNK induced by increased glucose and tumor necrosis factor alpha (TNF-α) levels in diabetic retina. Moreover, U60E and C7A reduced endothelial permeability by preventing pericyte apoptosis in co-cultures of pericytes and endothelial cells. These results suggest that U60E and C7A could be a potential therapeutic agent for reducing vascular leakage by preventing pericyte apoptosis in DR.
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Affiliation(s)
- Iljin Kim
- Department of Pharmacology, Inha University College of Medicine, Incheon, Republic of Korea
| | - Jieun Seo
- Faculty of Engineering, Yokohama National University, Yokohama, Japan
| | - Dong Hyun Lee
- Department of Ophthalmology, Inha University Hospital, Inha University College of Medicine, Incheon, Republic of Korea
| | - Yo-Han Kim
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon, Gangwon, Republic of Korea
| | - Jun-Hyung Kim
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon, Gangwon, Republic of Korea
| | - Myung-Bok Wie
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon, Gangwon, Republic of Korea
| | - Jun-Kyu Byun
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Kyungpook National University, Daegu, Republic of Korea
| | - Jang-Hyuk Yun
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon, Gangwon, Republic of Korea
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Galffy G, Lugowska I, Poddubskaya EV, Cho BC, Ahn MJ, Han JY, Su WC, Hauke RJ, Dyar SH, Lee DH, Serwatowski P, Estelles DL, Holden VR, Kim YJ, Vladimirov V, Horvath Z, Ghose A, Goldman A, di Pietro A, Wang J, Murphy DA, Alhadab A, Laskov M. A phase II open-label trial of avelumab plus axitinib in previously treated non-small-cell lung cancer or treatment-naïve, cisplatin-ineligible urothelial cancer. ESMO Open 2023; 8:101173. [PMID: 37141847 DOI: 10.1016/j.esmoop.2023.101173] [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: 06/22/2022] [Revised: 01/17/2023] [Accepted: 02/06/2023] [Indexed: 05/06/2023] Open
Abstract
BACKGROUND We hypothesized that avelumab plus axitinib could improve clinical outcomes in patients with advanced non-small-cell lung cancer (NSCLC) or urothelial carcinoma (UC). PATIENTS AND METHODS We enrolled previously treated patients with advanced or metastatic NSCLC, or untreated, cisplatin-ineligible patients with advanced or metastatic UC. Patients received avelumab 800 mg every 2 weeks (Q2W) and axitinib 5 mg orally two times daily. The primary endpoint was objective response rate (ORR). Immunohistochemistry was used to assess programmed death-ligand 1 (PD-L1) expression (SP263 assay) and the presence of CD8+ T cells (clone C8/144B). Tumor mutational burden (TMB) was assessed by whole-exome sequencing. RESULTS A total of 61 patients were enrolled and treated (NSCLC, n = 41; UC, n = 20); 5 remained on treatment at data cut-off (26 February 2021). The confirmed ORR was 31.7% in the NSCLC cohort and 10.0% in the UC cohort (all partial responses). Antitumor activity was observed irrespective of PD-L1 expression. In exploratory subgroups, ORRs were higher in patients with higher (≥median) CD8+ T cells in the tumor. ORRs were higher in patients with lower TMB (<median) in the NSCLC cohort and higher TMB (≥median) in the UC cohort. Treatment-related adverse events (TRAEs) occurred in 93.4% of patients, including grade ≥3 TRAEs in 55.7%. Avelumab exposures with 800 mg Q2W dosing were similar to those observed with 10 mg/kg Q2W dosing. CONCLUSIONS In previously treated patients with advanced/metastatic NSCLC, ORR appeared to be superior to anti-PD-L1 or anti-programmed cell death protein 1 monotherapy, irrespective of PD-L1 status, whereas in untreated, cisplatin-ineligible patients with advanced/metastatic UC, ORR was lower than expected, potentially limited by small patient numbers. TRIAL REGISTRATION Clinicaltrial.gov NCT03472560; https://clinicaltrials.gov/ct2/show/NCT03472560.
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Affiliation(s)
- G Galffy
- Department of Pulmonology, Pulmonology Hospital Törökbálint, Törökbálint, Hungary.
| | - I Lugowska
- Early Phase Clinical Trials Unit, Maria Skłodowska-Curie National Research Institute of Oncology, Warsaw, Poland; Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Skłodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | | | - B C Cho
- Division of Medical Oncology, Yonsei Cancer Center, Severance Hospital, Seoul
| | - M-J Ahn
- Department of Hematology & Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul
| | - J-Y Han
- Center for Lung Cancer, National Cancer Center, Goyang, Republic of Korea
| | - W-C Su
- Division of Hematology and Oncology, Department of Internal Medicine, National Cheng Kung University Hospital, Tainan, Taiwan
| | - R J Hauke
- Department of Oncology, Nebraska Cancer Specialists, Omaha
| | - S H Dyar
- Department of Hematology & Oncology, Saint Francis Hospital Cancer Center, Greenville, USA
| | - D H Lee
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | | | - D L Estelles
- Department of Oncology, Consorcio Hospitalario Provincial de Castellon, Castellon, Spain
| | - V R Holden
- Oncology Hematology Associates, Springfield, USA
| | - Y J Kim
- Division of Hematology and Medical Oncology, Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam-si, Gyeonggi-do, Republic of Korea
| | - V Vladimirov
- GBUZ of Stavropol Territory Pyatigorsk Inter-regional Oncology Dispensary, Pyatigorsk, Stavropol Territory, Russia
| | - Z Horvath
- Bács-Kiskun Megyei Kórház Onkoradiológiai Központ, Kecskemet, Hungary
| | - A Ghose
- Department of Medical Oncology/Hematology, Arizona Oncology Associates, Tempe
| | | | | | | | | | | | - M Laskov
- LLC University Clinic of Headache, Moscow, Russia
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Lee JY, Han HJ, Ko SM, Jeong DS, Kang J, Lee DH, Cha HJ, Son WC. Evaluation of the 52-week chronic toxicity of a novel phthalate-free plasticizer, Eco-DEHCH (bis(2-ethylhexyl) cyclohexane-1,4-dicarboxylate), in Han Wistar rats. Food Chem Toxicol 2023; 176:113809. [PMID: 37137465 DOI: 10.1016/j.fct.2023.113809] [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: 02/25/2023] [Revised: 04/26/2023] [Accepted: 04/29/2023] [Indexed: 05/05/2023]
Abstract
Phthalate esters (PEs) are the most widely used class of plasticizers. Several PEs, however, were found to have adverse effects on the health of animals. A new phthalate-free plasticizer, Eco-DEHCH (bis(2-ethylhexyl) cyclohexane-1,4-dicarboxylate), was recently developed as an ecofriendly replacement for phthalate plasticizers and to be less harmful to organisms. The present study evaluated the long-term toxicity of Eco-DEHCH in Wistar Han rats to explore adverse effects and predict hazardous potential to humans. Forty male and forty female Wistar Han rats were exposed to Eco-DEHCH in dietary feed for 52 weeks, and their hematologic, coagulation, and serum biochemical parameters were monitored. The rats were subjected to close clinical, ophthalmic, and histopathologic examinations and urinalysis throughout the consumption of Eco-DEHCH. The effects of this plasticizer on food consumption and organ weight were also determined. Chronic exposure to Eco-DEHCH was generally safe, although it also resulted in α2u-globulin accumulation, a parameter with no human relevance. In conclusion, Eco-DEHCH can serve as a safe and promising alternative plasticizer.
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Affiliation(s)
- Ji-Young Lee
- Department of Medical Science, AMIST, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Hyo-Jeong Han
- Department of Medical Science, AMIST, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Soo Min Ko
- Department of Medical Science, AMIST, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Da Som Jeong
- Department of Medical Science, AMIST, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Jiyeon Kang
- Department of Medical Science, AMIST, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Dong Hyun Lee
- Department of Medical Science, AMIST, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Hwa Jun Cha
- Department of Medical Science, AMIST, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Woo-Chan Son
- Department of Pathology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea.
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Jung J, Chu H, Kim I, Lee DH, Doo G, Kwon H, Jo W, Kim S, Cho H, Kim HT. Confronting Sulfur Electrode Passivation and Li Metal Electrode Degradation in Lithium-Sulfur Batteries Using Thiocyanate Anion. Adv Sci (Weinh) 2023; 10:e2301006. [PMID: 36943003 DOI: 10.1002/advs.202301006] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Indexed: 05/27/2023]
Abstract
Salt anions with a high donor number (DN) enable high sulfur utilization in lithium-sulfur (Li-S) batteries by inducing three-dimensional (3D) Li2 S growth. However, their insufficient compatibility with Li metal electrodes limits their cycling stability. Herein, a new class of salt anion, thiocyanate (SCN- ), is presented, which features a Janus character of electron donor and acceptor. Due to a strong Li+ coordination by SCN- and the direct interaction of SCN- with polysulfide anions, the LiSCN electrolyte has a remarkably high lithium polysulfide solubility. This electrolyte induces 3D Li2 S formation and ameliorates cathode passivation, even more than Br- , a typical high DN anion. Moreover, SCN- forms a Li3 N-enriched stable SEI layer at the surface of the Li metal electrode, enhancing cycling stability. A Li-S battery with the LiSCN electrolyte shows high current density operation (2.54 mA cm⁻2 ) with high discharge capacity (1133 mAh g⁻1 ) and prolonged cycle life (100 cycles). This work demonstrates that the cathode and anode performance in a Li-S battery can be simply and concurrently enhanced by the single salt anion.
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Affiliation(s)
- Jinkwan Jung
- Department of Chemical and Biomolecular Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Hyunwon Chu
- Department of Chemical and Biomolecular Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Ilju Kim
- Department of Chemical and Biomolecular Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Dong Hyun Lee
- Department of Chemical and Biomolecular Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Gisu Doo
- Department of Chemical and Biomolecular Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Hyeokjin Kwon
- Department of Chemical and Biomolecular Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Wonhee Jo
- Department of Chemical and Biomolecular Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Sejin Kim
- Department of Chemical and Biomolecular Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Hyenah Cho
- Department of Chemical and Biomolecular Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Hee-Tak Kim
- Department of Chemical and Biomolecular Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
- Advanced Battery Center, KAIST Institute for the NanoCentury, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
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Cho J, Lee JH, Lee DH, Kim J, Uh Y. Performance Comparison of Procalcitonin, Delta Neutrophil Index, C-Reactive Protein, and Serum Amyloid A Levels in Patients with Hematologic Diseases. Diagnostics (Basel) 2023; 13:diagnostics13071213. [PMID: 37046430 PMCID: PMC10093706 DOI: 10.3390/diagnostics13071213] [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: 03/02/2023] [Accepted: 03/21/2023] [Indexed: 04/14/2023] Open
Abstract
(1) Background: We compared the diagnostic and prognostic performance of serum amyloid A (SAA), procalcitonin (PCT), delta neutrophil index (DNI), and C-reactive protein (CRP) in patients with hematologic diseases; (2) Methods: We retrospectively collected the remaining serum samples from patients with hematologic diseases, analyzed their clinical data, and measured the levels of PCT, DNI, CRP, and SAA. Performances for infection diagnosis were evaluated using a receiver operating characteristic curve analysis, and 90-day mortality was analyzed using Kaplan-Meier estimation; (3) Results: The levels of all markers were significantly higher in the infected group (N = 27) than those in the uninfected group (N = 100) (p < 0.0001 for all markers). The areas under the curve for diagnosing infection for PCT, DNI, CRP, and SAA were 0.770, 0.817, 0.870, and 0.904, respectively. Increased PCT levels were associated with higher mortality (p = 0.0250); this association was not observed with other examined markers; (4) Conclusions: CRP and SAA exhibited greater discriminative power for infection than PCT. However, only PCT levels were positively associated with 90-day mortality. Herein, we evaluated the diagnostic performance of the four markers. Additional studies are needed to confirm the findings of the present study and validate the potential of these markers in clinical practice.
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Affiliation(s)
- Jooyoung Cho
- Department of Laboratory Medicine, Yonsei University Wonju College of Medicine, Wonju 26426, Republic of Korea
| | - Jong-Han Lee
- Department of Laboratory Medicine, Yonsei University Wonju College of Medicine, Wonju 26426, Republic of Korea
| | - Dong Hyun Lee
- Department of Laboratory Medicine, Yonsei University Wonju College of Medicine, Wonju 26426, Republic of Korea
| | - Juwon Kim
- Department of Laboratory Medicine, Yonsei University Wonju College of Medicine, Wonju 26426, Republic of Korea
- Center for Precision Medicine and Genomics, Wonju Severance Christian Hospital, Wonju 26426, Republic of Korea
| | - Young Uh
- Department of Laboratory Medicine, Yonsei University Wonju College of Medicine, Wonju 26426, Republic of Korea
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Lee DH, Baek J, Kim DH, Roh JW, Kim J, Lee D. Three-dimensional ternary Ni xCu yZn z(CO 3)(OH) 2 electrodes for supercapacitors: electrochemical properties and applications. Dalton Trans 2023; 52:3333-3343. [PMID: 36807449 DOI: 10.1039/d3dt00143a] [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: 02/22/2023]
Abstract
Transition metal-based binary and ternary compound arrays were directly grown on a porous Ni foam substrate using a facile one-step hydrothermal method. Transition metals are considered ideal electrode materials for faradaic capacitors because they exhibit a wide range of oxidation states enabling effective redox charge transfer. Furthermore, compounds in which two or more transition metals react can help increase the number of active sites for charge-discharge reactions and provide more valence changes for improved charge transfer. In this work, we fabricated ternary electrodes with Ni, Cu, and Zn ions, exhibiting a larger surface area and higher entropy than those made with binary compounds. The NixCuyZnz-based ternary electrode had a shorter diffusion path for the electrolyte ions owing to its larger surface area. Ternary compounds can increase the entropy of the electrode because of the reaction between atoms of different sizes, bringing about a synergistic effect for high characteristic electrochemical values. The optimized NixCuyZnz(CO3)(OH)2 compound showed a maximum specific capacity of 344 mA h g-1 at a current density of 3 A g-1, which was remarkably higher than that of the binary electrode, and a cycling stability of 84.9% after 5000 cycles. An asymmetric supercapacitor produced with this compound as the positive electrode and graphene as the negative electrode exhibited a high energy density of 36.2 W h kg-1 at a power density of 103.1 W kg-1 and a current density of 2 A g-1. The asymmetric supercapacitor fabricated using the NixCuyZnz(CO3)(OH)2 compound as the positive electrode exhibited excellent electrical properties when used in an illuminated LED device.
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Affiliation(s)
- Dong Hyun Lee
- Division of Nanotechnology, DGIST, 333 Techno Jungang-daero, Daegu 42988, Republic of Korea. .,Regional Leading Research Center for Smart Energy System, Kyungpook National University, Daegu 41566, Republic of Korea.
| | - Juyoung Baek
- Division of Nanotechnology, DGIST, 333 Techno Jungang-daero, Daegu 42988, Republic of Korea.
| | - Dong Hwan Kim
- Division of Nanotechnology, DGIST, 333 Techno Jungang-daero, Daegu 42988, Republic of Korea.
| | - Jong Wook Roh
- Regional Leading Research Center for Smart Energy System, Kyungpook National University, Daegu 41566, Republic of Korea.
| | - Jeongmin Kim
- Division of Nanotechnology, DGIST, 333 Techno Jungang-daero, Daegu 42988, Republic of Korea.
| | - Damin Lee
- Division of Nanotechnology, DGIST, 333 Techno Jungang-daero, Daegu 42988, Republic of Korea. .,Regional Leading Research Center for Smart Energy System, Kyungpook National University, Daegu 41566, Republic of Korea.
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Sung WC, Jung HS, Bae JW, Kim JY, Lee DH. Hydrodynamic effects on the direct conversion of syngas to methyl acetate in a two-stage fixed-bed/fluidized-bed combined reactor. J CO2 UTIL 2023. [DOI: 10.1016/j.jcou.2023.102411] [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: 01/19/2023]
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30
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Kwak JJ, Lee DH, Lee SC, Lee CS. Evaluation of blood vessel network formation and visual field defect in optic disc melanocytoma. Br J Ophthalmol 2023; 107:418-424. [PMID: 34580073 PMCID: PMC9985761 DOI: 10.1136/bjophthalmol-2021-319630] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Accepted: 09/11/2021] [Indexed: 01/10/2023]
Abstract
AIM To investigate the association between visual field defects and blood vessel network (BVN) formation in optic disc melanocytomas (ODMs) using optical coherence tomography angiography (OCTA). METHODS Single-centre, retrospective case series of 32 eyes of 32 patients with ODM, in which eyes were divided into two groups based on complete and incomplete BVN formations. RESULTS OCTA revealed incomplete BVN formation in 16 of 32 ODMs. The location of BVN absence corresponded to the location of hypofluorescence from fluorescein angiography (FA) in 12 (75%) and to the location of visual field defect in 13 (81%) ODMs in the incomplete BVN group. Perimetric indices were significantly worse in the incomplete BVN group than in the complete BVN group. Linear regression of mean deviation (MD) and Visual Field Index (VFI) on the area of BVN absence were statistically significant (p=0.01 and p=0.003, respectively), whereas linear regressions of MD and VFI on the tumour area were not statistically significant (both p=0.09) in the incomplete BVN group. CONCLUSION The location of BVN absence within ODMs corresponded to the location of visual field defect and the location of FA hypofluorescence. Visual field defect was more severe in the incomplete BVN group than in the complete BVN group. Visual field defect was more significantly associated with the area of BVN absence than the tumour area.
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Affiliation(s)
- Jay Jiyong Kwak
- Department of Ophthalmology, The Institute of Vision Research, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Dong Hyun Lee
- Department of Ophthalmology, Inha University Hospital, Inha University School of Medicine, Incheon, Republic of Korea
| | - Sung Chul Lee
- Department of Ophthalmology, Konyang University College of Medicine, Daejeon, Republic of Korea
| | - Christopher Seungkyu Lee
- Department of Ophthalmology, The Institute of Vision Research, Yonsei University College of Medicine, Seoul, Republic of Korea
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Park JY, Lee DH, Park GH, Lee J, Lee Y, Park MH. A perspective on the physical scaling down of hafnia-based ferroelectrics. Nanotechnology 2023; 34:202001. [PMID: 36745914 DOI: 10.1088/1361-6528/acb945] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 02/05/2023] [Indexed: 06/18/2023]
Abstract
HfO2-based ferroelectric thin films have attracted significant interest for semiconductor device applications due to their compatibility with complementary metal oxide semiconductor (CMOS) technology. One of the benefits of HfO2-based ferroelectric thin films is their ability to be scaled to thicknesses as low as 10 nm while retaining their ferroelectric properties; a feat that has been difficult to accomplish with conventional perovskite-based ferroelectrics using CMOS-compatible processes. However, reducing the thickness limit of HfO2-based ferroelectric thin films below the sub 5 nm thickness regime while preserving their ferroelectric property remains a formidable challenge. This is because both the structural factors of HfO2, including polymorphism and orientation, and the electrical factors of HfO2-based devices, such as the depolarization field, are known to be highly dependent on the HfO2thickness. Accordingly, when the thickness of HfO2drops below 5 nm, these factors will become even more crucial. In this regard, the size effect of HfO2-based ferroelectric thin films is thoroughly discussed in the present review. The impact of thickness on the ferroelectric property of HfO2-based thin films and the electrical performance of HfO2-based ferroelectric semiconductor devices, such as ferroelectric random-access-memory, ferroelectric field-effect-transistor, and ferroelectric tunnel junction, is extensively discussed from the perspective of fundamental theory and experimental results. Finally, recent developments and reports on achieving ferroelectric HfO2at sub-5 nm thickness regime and their applications are discussed.
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Affiliation(s)
- Ju Yong Park
- Department of Materials Science and Engineering & Inter-university Semiconductor Research Center, College of Engineering, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Dong Hyun Lee
- Department of Materials Science and Engineering & Inter-university Semiconductor Research Center, College of Engineering, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Geun Hyeong Park
- Department of Materials Science and Engineering & Inter-university Semiconductor Research Center, College of Engineering, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Jaewook Lee
- Department of Materials Science and Engineering & Inter-university Semiconductor Research Center, College of Engineering, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Younghwan Lee
- Research Institute of Advanced Materials, College of Engineering, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Min Hyuk Park
- Department of Materials Science and Engineering & Inter-university Semiconductor Research Center, College of Engineering, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
- Research Institute of Advanced Materials, College of Engineering, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
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Kim SH, Yu GT, Park GH, Lee DH, Park JY, Yang K, Lee EB, Lee JI, Park MH. Correction: Interfacial engineering of a Mo/Hf 0.3Zr 0.7O 2/Si capacitor using the direct scavenging effect of a thin Ti layer. Chem Commun (Camb) 2023; 59:2668. [PMID: 36799462 DOI: 10.1039/d3cc90042h] [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: 02/18/2023]
Abstract
Correction for 'Interfacial engineering of a Mo/Hf0.3Zr0.7O2/Si capacitor using the direct scavenging effect of a thin Ti layer' by Se Hyun Kim et al., Chem. Commun., 2021, 57, 12452-12455, https://doi.org/10.1039/D1CC04966F.
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Affiliation(s)
- Se Hyun Kim
- School of Materials Science and Engineering, Pusan National University, Busan 46241, Republic of Korea.
| | - Geun Taek Yu
- School of Materials Science and Engineering, Pusan National University, Busan 46241, Republic of Korea.
| | - Geun Hyeong Park
- School of Materials Science and Engineering, Pusan National University, Busan 46241, Republic of Korea.
| | - Dong Hyun Lee
- School of Materials Science and Engineering, Pusan National University, Busan 46241, Republic of Korea.
| | - Ju Yong Park
- School of Materials Science and Engineering, Pusan National University, Busan 46241, Republic of Korea.
| | - Kun Yang
- School of Materials Science and Engineering, Pusan National University, Busan 46241, Republic of Korea.
| | - Eun Been Lee
- School of Materials Science and Engineering, Pusan National University, Busan 46241, Republic of Korea.
| | - Je In Lee
- School of Materials Science and Engineering, Pusan National University, Busan 46241, Republic of Korea.
| | - Min Hyuk Park
- School of Materials Science and Engineering, Pusan National University, Busan 46241, Republic of Korea. .,Department of Materials Science and Engineering & Inter-University Semiconductor Research Center, College of Engineering, Seoul National University, Seoul, Republic of Korea.
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Lee JH, Kim MS, Lee JS, Lee DH, Park C, Lee DH, Kim EY, Chung HM. The Essential Function of miR-5739 in Embryonic Muscle Development. Int J Stem Cells 2023; 16:145-155. [PMID: 36823980 DOI: 10.15283/ijsc22187] [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: 11/11/2022] [Revised: 11/24/2022] [Accepted: 11/29/2022] [Indexed: 02/25/2023] Open
Abstract
Background and Objectives Embryologically, mesodermal development is closely related to the development of various organs such as muscles, blood vessels, and hearts, which are the main organs that make up the body. However, treatment for mesoderm developmental disorders caused by congenital or acquired factors has so far relied on surgery and drug treatment for symptom relief, and more fundamentally, treatment for mesoderm developmental disorders is needed. Methods and Results In our study, microRNA (miRNA), which plays an important role in the mesoderm development process, was identified and the developmental function was evaluated. miRNAs consist of small nucleotides, which act as transcription factors that bind to the 3' untranslated region and suppressed target gene expression. We constructed the human embryonic stem cell (hESC) knockout cell line and analyzed the function and characteristics of miR-5739, which plays an important role in mesoderm lineage. miR-5739 acts as a transcription factor targeting SMA, Brachyury T, Hand1, which controls muscle proliferation and differentiation, and KDR gene, which regulates vessel formation in vitro. In vivo results suggest a role in regulating muscle proliferation and differentiation. Gene ontology analysis confirmed that the miR-5739 is closely related to genes that regulate muscle and vessel proliferation and differentiation. Importantly, abnormal expression of miR-5739 was detected in somatic cells derived from patients with congenital muscle disease. Conclusions Our study demonstrate that miR-5739 gene function significantly affects transcriptional circuits that regulate muscle and vascular differentiation during embryonic development.
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Affiliation(s)
| | | | | | | | | | | | - Eun-Young Kim
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju, Korea.,Mirae Cell Bio Inc., Seoul, Korea
| | - Hyung Min Chung
- Department of Stem Cell Biology, School of Medicine, Konkuk University, Seoul, Korea.,Mirae Cell Bio Inc., Seoul, Korea
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Park SJ, Kim H, Piao M, Kang HJ, Fassah DM, Jung DJS, Kim SY, Na SW, Beak SH, Jeong IH, Yoo SP, Hong SJ, Lee DH, Lee SH, Haque MN, Shin DJ, Kwon JA, Jo C, Baik M. Effects of genomic estimated breeding value and dietary energy to protein ratio on growth performance, carcass trait, and lipogenic gene expression in Hanwoo steer. Animal 2023; 17:100728. [PMID: 36870258 DOI: 10.1016/j.animal.2023.100728] [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: 12/01/2021] [Revised: 01/31/2023] [Accepted: 02/02/2023] [Indexed: 02/12/2023] Open
Abstract
"Genome-based precision feeding" is a concept that involves the application of customised diets to different genetic groups of cattle. We investigated the effects of the genomic estimated breeding value (gEBV) and dietary energy to protein ratio (DEP) on growth performance, carcass traits, and lipogenic gene expression in Hanwoo (Korean cattle) steers. Forty-four Hanwoo steers (BW = 636 kg, age = 26.9 months) were genotyped using the Illumina Bovine 50 K BeadChip. The gEBV was calculated using genomic best linear unbiased prediction. Animals were separated into high gEBV of marbling score or low-gMS groups based on the upper and lower 50% groupings of the reference population, respectively. Animals were assigned to one of four groups in a 2 × 2 factorial arrangement: high gMS/high DEP (0.084 MJ/g), high gMS/low DEP (0.079 MJ/g), low gMS/high DEP, and low gMS/low DEP. Steers were fed concentrate with a high or low DEP for 31 weeks. The BW tended to be higher (0.05 < P < 0.1) in the high-gMS groups compared to the low-gMS groups at 0, 4, 8, 12, and 20 weeks. The average daily gain (ADG) tended to be lower (P = 0.08) in the high-gMS group than in the low-gMS group. Final BW and measured carcass weight (CW) were positively correlated with the gEBV of carcass weight (gCW). The DEP did not affect ADG. Neither the gMS nor the DEP affected the MS and beef quality grade. The intramuscular fat (IMF) content in the longissimus thoracis (LT) tended to be higher (P = 0.08) in the high-gMS groups than in the low-gMS groups. The mRNA levels of lipogenic acetyl-CoA carboxylase and fatty acid binding protein 4 genes in the LT were higher (P < 0.05) in the high-gMS group than in the low-gMS group. Overall, the IMF content tended to be affected by the gMS, and the genetic potential (i.e., gMS) was associated with the functional activity of lipogenic gene expression. The gCW was associated with the measured BW and CW. The results demonstrated that the gMS and the gCW may be used as early prediction indexes for meat quality and growth potential of beef cattle.
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Affiliation(s)
- S J Park
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - H Kim
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - M Piao
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - H J Kang
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - D M Fassah
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - D J S Jung
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - S Y Kim
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - S W Na
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - S-H Beak
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - I H Jeong
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - S P Yoo
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - S J Hong
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - D H Lee
- Division of Animal and Dairy Science, Chungnam National University, Daejeon 34134, Republic of Korea
| | - S H Lee
- Division of Animal and Dairy Science, Chungnam National University, Daejeon 34134, Republic of Korea
| | - M N Haque
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - D-J Shin
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - J A Kwon
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - C Jo
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea; Institutes of Green Bio Science Technology, Pyeongchang-daero, Daehwa-myeon, Pyeongchang-gun, Gangwon 25354, Republic of Korea
| | - M Baik
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea; Institutes of Green Bio Science Technology, Pyeongchang-daero, Daehwa-myeon, Pyeongchang-gun, Gangwon 25354, Republic of Korea.
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Kang DG, Lee DH, Im JH. Osteochondritis dissecans of the metacarpal head in a soldier treated with osteochondral autograft transplantation surgery: A case report. Medicine (Baltimore) 2023; 102:e32563. [PMID: 36701721 PMCID: PMC9857577 DOI: 10.1097/md.0000000000032563] [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] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
RATIONALE Osteochondral autograft transplantation surgery (OATS) was introduced as a treatment for hand osteochondritis dissecans (OCD), and successful results were reported. However, the cartilage height of the donor plug has not yet been established compared with that of other joints. We present a case using OATS for OCD of the 3rd metacarpal (MCP) head that occurred in a soldier and the findings of magnetic resonance imaging (MRI) images taken at 12 weeks after surgery. PATIENT CONCERNS A 21-year-old male presented with a painful, swollen 3rd MCP joint in the right hand. He was a soldier and right-handed; in addition, he did not recall any traumatic events, nor had he taken any corticosteroid medications before. The patient was excluded from military training and underwent conservative treatment with medication and a brace in a military hospital for 3 months. DIAGNOSIS The patient was diagnosed with OCD due to avascular necrosis of the 3rd MCP head of the right hand through X-ray and MRI. INTERVENTIONS OATS was planned as a surgical treatment. Surgery uncovered a 10 × 10 mm2, isolated cartilage defect of the 3rd MCP head that had an irregular margin and a loose body. Using Arthrex OATS, a 10-mm diameter, 10-mm depth hole was made at the articular defect site, and an 11-mm diameter, 12-length plug was harvested from the left lateral femoral condyle. The donor plug was inserted into the prepared defect site with press-fit fixation. OUTCOMES At the last follow-up, the height of the articular cartilage had subsided with union on MRI 12 weeks after the surgery. However, the patient was asymptomatic with a normal range of motion of the right hand, and he returned to military training. LESSONS Although the joints of the hand are small and non-weight bearing, the level of articular cartilage of the donor plug was subsided in a follow-up MRI in our case. We suggest that the difference in cartilage thickness between the donor and the recipient might have been the cause of subsidence of the articular cartilage, and therefore, it may be helpful to transplant donors with similar thicknesses of articular cartilage.
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Affiliation(s)
- Dong-Geun Kang
- Department of Orthopedic Surgery, Gyeongsang National University, College of Medicine and Gyeongsang National University Changwon Hospital, Changwon-si, Gyeongsangnam-do, Republic of Korea
| | - Dong Hyun Lee
- Department of Orthopedic Surgery, Gyeongsang National University, College of Medicine and Gyeongsang National University Changwon Hospital, Changwon-si, Gyeongsangnam-do, Republic of Korea
| | - Jin-Hyung Im
- Department of Orthopedic Surgery, Yeouido St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
- * Correspondence: Jin-Hyung Im, Department of Orthopedic Surgery, Yeouido St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 07345, Republic of Korea (e-mail: )
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Lee SY, Lee DH, Cho DH. Modulated electrohyperthermia in locally advanced cervical cancer: Results of an observational study of 95 patients. Medicine (Baltimore) 2023; 102:e32727. [PMID: 36701697 PMCID: PMC9857257 DOI: 10.1097/md.0000000000032727] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Most federation of gynecology and obstetrics stage II or higher locally advanced cervical cancer (LACC) patients are treated with concurrent chemoradiotherapy (CCRT); however, recurrence is high, and the prognosis is poor. In this observational retrospective study, data from LACC patients treated with CCRT alone or combined with modulated electrohyperthermia (mEHT) were collected from 2011 to 2018. Ninety-five LACC patients, including 53 (%) treated with CCRT alone and 42 (%) treated with CCRT + mEHT, were enrolled. The complete remission rate significantly increased with CCRT + mEHT compared with CCRT alone among LACC cases with lymph node metastasis (45% vs 71%, P = .0377). Additionally, at the last follow-up point, the no-evidence-of-disease rate significantly improved with CCRT + mEHT compared with CCRT (58% vs 82%, P = .0315). Disease-free survival increased in the CCRT + mEHT group with lymph node metastasis (P = .04). The addition of mEHT to CCRT led to a better therapeutic response in LACC with regional lymph node metastasis without severe complications.
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Affiliation(s)
- Sun Young Lee
- Department of Radiation Oncology, Jeonbuk National University Hospital, Jeonju, Republic of Korea
- Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, Republic of Korea
| | - Dong Hyun Lee
- Department of Obstetrics and Gynecology, Jeonbuk National University Hospital, Jeonju, Republic of Korea
| | - Dong-Hyu Cho
- Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, Republic of Korea
- Department of Obstetrics and Gynecology, Jeonbuk National University Hospital, Jeonju, Republic of Korea
- * Correspondence: Dong-Hyu Cho, Department of Obstetrics and Gynecology, Jeonbuk National University Hospital, Jeonju 54907, Republic of Korea (e-mail: )
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Nam JY, Lee TR, Tokmurzin D, Park SJ, Ra HW, Yoon SJ, Mun TY, Yoon SM, Moon JH, Lee JG, Lee DH, Seo MW. Hydrogen-rich gas production from disposable COVID-19 mask by steam gasification. Fuel (Lond) 2023; 331:125720. [PMID: 36033729 PMCID: PMC9399138 DOI: 10.1016/j.fuel.2022.125720] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 08/08/2022] [Accepted: 08/18/2022] [Indexed: 06/04/2023]
Abstract
Globally, the demand for masks has increased due to the COVID-19 pandemic, resulting in 490,201 tons of waste masks disposed of per month. Since masks are used in places with a high risk of virus infection, waste masks retain the risk of virus contamination. In this study, a 1 kg/h lab-scale (diameter: 0.114 m, height: 1 m) bubbling fluidized bed gasifier was used for steam gasification (temperature: 800 °C, steam/carbon (S/C) ratio: 1.5) of waste masks. The use of a downstream reactor with activated carbon (AC) for tar cracking and the enhancement of hydrogen production was examined. Steam gasification with AC produces syngas with H2, CO, CH4, and CO2 content of 38.89, 6.40, 21.69, and 7.34 vol%, respectively. The lower heating value of the product gas was 29.66 MJ/Nm3 and the cold gas efficiency was 74.55 %. This study showed that steam gasification can be used for the utilization of waste masks and the production of hydrogen-rich gas for further applications.
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Key Words
- AC, Activated Carbon
- Activated carbon
- BFB, Bubbling fluidized bed
- CCE, Carbon conversion efficiency
- CGE, Cold gas efficiency
- DTG, Derivative thermos-gravimetry
- Disposable COVID-19 mask
- FT-IR, Fourier-transform infrared spectroscopy
- Fluidized bed
- GC, Gas chromatography
- GCMS, Gas chromatography-mass spectrometry
- HMI, Human machine interface
- IPA, Isopropyl alcohol
- LHV, Lower Heating Value
- MFC, Mass flow controller
- MSW, Municipal solid waste
- NDIR, Non-Dispersive Infrared Spectroscopy
- PP, Polypropylene
- PPE, Personal protective equipment
- PU, Polyurethane
- RPM, revolutions per minute
- Steam gasification
- TCD, Thermal conductivity detector
- Tar
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Affiliation(s)
- Ji Young Nam
- Climate Change Research Division, Korea Institute of Energy Research (KIER), 152 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea
- School of Chemical Engineering, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangangu, Suwon, Gyeonggi-do 16419, Republic of Korea
| | - Tae Ryeon Lee
- Climate Change Research Division, Korea Institute of Energy Research (KIER), 152 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea
| | - Diyar Tokmurzin
- Climate Change Research Division, Korea Institute of Energy Research (KIER), 152 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea
| | - Sung Jin Park
- Climate Change Research Division, Korea Institute of Energy Research (KIER), 152 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea
| | - Ho Won Ra
- Climate Change Research Division, Korea Institute of Energy Research (KIER), 152 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea
| | - Sang Jun Yoon
- Climate Change Research Division, Korea Institute of Energy Research (KIER), 152 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea
| | - Tae-Young Mun
- Climate Change Research Division, Korea Institute of Energy Research (KIER), 152 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea
| | - Sung Min Yoon
- Climate Change Research Division, Korea Institute of Energy Research (KIER), 152 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea
| | - Ji Hong Moon
- Climate Change Research Division, Korea Institute of Energy Research (KIER), 152 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea
| | - Jae Goo Lee
- Climate Change Research Division, Korea Institute of Energy Research (KIER), 152 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea
| | - Dong Hyun Lee
- School of Chemical Engineering, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangangu, Suwon, Gyeonggi-do 16419, Republic of Korea
| | - Myung Won Seo
- School of Environmental Engineering, University of Seoul, 163 Seoulsiripdae-ro, Dongdaemun-gu, Seoul, Republic of Korea
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Huang DQ, Lee DH, Le MH, Le A, Yeo YH, Trinh HN, Chung M, Nguyen V, Johnson T, Zhang JQ, Wong C, Wong C, Li J, Cheung R, Nguyen MH. Liver Complications in Untreated Treatment-Ineligible versus Treated Treatment-Eligible Patients with Hepatitis B. Dig Dis 2023; 41:115-123. [PMID: 36070707 PMCID: PMC9909719 DOI: 10.1159/000526933] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 08/15/2022] [Indexed: 02/02/2023]
Abstract
BACKGROUND A substantial number of patients who do not meet treatment criteria for chronic hepatitis B (CHB) later develop adverse outcomes such as cirrhosis and hepatocellular carcinoma (HCC). Our aim was to determine whether current practice guidelines adequately identify CHB patients who will benefit from antiviral therapy. METHODS We performed a retrospective cohort study comparing the incidence of adverse liver outcomes (cirrhosis and/or HCC) in untreated treatment-ineligible (at baseline and throughout follow-up) versus treated treatment-eligible patients according to standard American Association for the Study of Liver Diseases (AASLD) 2018 guidance (alanine aminotransferase [ALT] >70/50 U/L for men/women plus hepatitis B virus [HBV] DNA >20,000/2,000 IU/mL for HBeAg+/-) and with a sensitivity analyses using a lower threshold (ALT >40 U/L and HBV DNA >2,000 IU/mL). RESULTS We reviewed records of 5,840 patients from 5 clinics in California and identified 2,987 treatment-naive non-HCC CHB patients. Of those, 271 patients remained untreated treatment-ineligible, 514 patients were treatment-eligible and initiated treatment, with 5-year cumulative adverse liver incidences of 12.5% versus 7.2%, p = 0.074. On multivariable analysis adjusting for age, sex, diabetes, albumin, platelet count, and HBV DNA, compared to treated treatment-eligible patients, untreated treatment-ineligible patients had a significantly higher risk of adverse liver outcomes (adjusted hazard ratio: 2.38, 95% confidence interval 1.03-5.48, p = 0.04) in main analysis by AASLD 2018 criteria but not in sensitivity analysis using the lower treatment threshold (p = 0.09). CONCLUSION Patients never meeting standard AASLD 2018 criteria for antiviral therapy and never treated had twice the risk of developing cirrhosis and/or HCC when compared to eligible and treated patients.
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Affiliation(s)
- Daniel Q. Huang
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore,Division of Gastroenterology and Hepatology, National University Health System, Singapore, Singapore
| | - Dong Hyun Lee
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Good Gang-An Hospital, Busan, Republic of Korea,Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, California, USA
| | - Michael H. Le
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, California, USA
| | - An Le
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, California, USA
| | - Yee Hui Yeo
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, California, USA
| | - Huy N. Trinh
- San Jose Gastroenterology, San Jose, California, USA
| | - Mimi Chung
- Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Vy Nguyen
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, California, USA
| | - Tiffani Johnson
- University of California, Berkeley, Berkeley, California, USA
| | | | | | | | - Jiayi Li
- Palo Alto Medical Foundation, Mountain View Division, Mountain View, California, USA
| | - Ramsey Cheung
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, California, USA,Department of Gastroenterology and Hepatology, Veterans Affairs Palo Alto Healthcare, Palo Alto, California, USA
| | - Mindie H. Nguyen
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, California, USA,*Mindie H. Nguyen,
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Cho J, Lee DH, Yoo G, Kim J, Uh Y. Comparison of serum and urine free light chain analysis in clinical diagnosis. Blood Res 2022; 57:284-289. [PMID: 36419240 PMCID: PMC9812726 DOI: 10.5045/br.2022.2022187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 10/17/2022] [Accepted: 11/14/2022] [Indexed: 11/25/2022] Open
Affiliation(s)
- Jooyoung Cho
- Department of Laboratory Medicine, Wonju Severance Christian Hospital, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Dong Hyun Lee
- Department of Laboratory Medicine, Wonju Severance Christian Hospital, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Gilsung Yoo
- Department of Laboratory Medicine, Wonju Severance Christian Hospital, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Juwon Kim
- Department of Laboratory Medicine, Wonju Severance Christian Hospital, Yonsei University Wonju College of Medicine, Wonju, Korea,Correspondence to: Juwon Kim Department of Laboratory Medicine and Center for Precision Medicine and Genomics, Wonju Severance Christian Hospital, Yonsei University Wonju College of Medicine, 20 Ilsan-ro, Wonju 26426, Korea, E-mail:
| | - Young Uh
- Department of Laboratory Medicine, Wonju Severance Christian Hospital, Yonsei University Wonju College of Medicine, Wonju, Korea
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Bail R, Lee SB, Lee DH. 3D printing of micropatterned stamps with tunable horizontal surface properties. SURF INTERFACE ANAL 2022. [DOI: 10.1002/sia.7180] [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: 12/13/2022]
Affiliation(s)
- Robert Bail
- Graduate School of Convergent Systems Engineering Dankook University Yongin South Korea
| | - Su Bin Lee
- Department of Polymer Science and Engineering Dankook University Yongin South Korea
| | - Dong Hyun Lee
- Department of Polymer Science and Engineering Dankook University Yongin South Korea
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Cho YJ, Lee DH, Kang HW, Kim DY, Lee DO, Lee DY. Pressure Properties of Three Different Types of Prefabricated Insoles Related to Plantar Pressure in Asymptomatic Men. Clin Orthop Surg 2022; 14:622-630. [PMID: 36518933 PMCID: PMC9715923 DOI: 10.4055/cios20280] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 04/01/2022] [Accepted: 04/01/2022] [Indexed: 11/19/2023] Open
Abstract
BACKGROUND In clinical fields, many types of insoles are used to not only realign movement patterns, but also treat pressure-related foot diseases. However, the characteristics of and plantar pressure in each type of insole are still unclear. Therefore, the aim of this study was to validate the plantar pressure-relieving effect of three representative types of insoles (metatarsal padding insole [MPI], lateral heel wedge insole [LHI], and arch support insole [ASI]) in asymptomatic men. METHODS A total of 35 feet of 35 asymptomatic men with a mean age of 23.4 ± 2.0 years were included. Pedobarographic data were evaluated by dividing the foot into eight designated regions to compare the three types of insoles. Peak plantar pressure (PPP) and pressure time integral (PTI) were assessed using the Pedar-X system. A repeated measures analysis of variance was used for statistical analyses. RESULTS In the hallux region, there was no statistically significant difference. MPI showed highest pressure in the 2nd-5th toe and midfoot region, but lowest in the central and lateral forefoot regions. Meanwhile, ASI showed highest pressure in the medial forefoot region but lowest in the lateral heel region. Lastly, pressure in the lateral heel region was highest in LHI. Overall, results of PTI were similar to those of PPP. CONCLUSIONS This study demonstrated that the three types of insole each could reduce and redistribute pressure of specific part of the foot to help select an appropriate insole for each purpose.
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Affiliation(s)
- Yun Jae Cho
- Department of Orthopedic Surgery, Han-il General Hospital, Seoul, Korea
| | - Dong Hyun Lee
- Department of Orthopedic Surgery, Seoul National University Hospital, Seoul, Korea
| | - Ho Won Kang
- Department of Orthopedic Surgery, Seoul National University Hospital, Seoul, Korea
| | - Dae-Yoo Kim
- Department of Orthopedic Surgery, Inje University Busan Paik Hospital, Busan, Korea
| | - Dong Oh Lee
- Department of Orthopedic Surgery, Seoul National University Hospital, Seoul, Korea
| | - Dong Yeon Lee
- Department of Orthopedic Surgery, Seoul National University Hospital, Seoul, Korea
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Lee DH, Yoo H. Recent Advances in Photo-Activated Chemical Sensors. Sensors (Basel) 2022; 22:s22239228. [PMID: 36501929 PMCID: PMC9738123 DOI: 10.3390/s22239228] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 11/21/2022] [Accepted: 11/23/2022] [Indexed: 05/27/2023]
Abstract
Gas detectors have attracted considerable attention for monitoring harmful gases and air pollution because of industry development and the ongoing interest in human health. On the other hand, conventional high-temperature gas detectors are unsuitable for safely detecting harmful gases at high activation temperatures. Photo-activated gas detectors improve gas sensing performance at room temperature and enable low-power operation. This review presents a timely overview of photo-activated gas detectors that use illuminated light instead of thermal energy. Illuminated light assists in gas detection and is classified as visible or ultraviolet light. The research on photo-activated gas detectors is organized according to the type of gas that can be intensively detected. In addition, a development strategy for advancing photo-activated gas detectors is discussed.
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Bae K, Young Kim J, Seok Go K, Sun Nho N, Kim D, Wook Bae J, Hyun Lee D. Heat transfer with single- and dual-gas distribution in a pressurised bubble column. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.118264] [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: 11/06/2022]
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Lee DH, Cho H, Choi EY, Kim M. Clinical features and long-term treatment outcome of posterior scleritis. Ann Transl Med 2022; 10:1162-1162. [PMID: 36467362 PMCID: PMC9708463 DOI: 10.21037/atm-22-721] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/09/2023]
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Ahn ST, Lee HS, Han DE, Lee DH, Kim JW, Park MG, Park HS, Moon DG, Oh MM. What are the risk factors for recurrent UTI with repeated ESBL-producing Enterobacteriaceae? A retrospective cohort study. J Infect Chemother 2022; 29:72-77. [PMID: 36195248 DOI: 10.1016/j.jiac.2022.09.020] [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: 02/03/2022] [Revised: 09/22/2022] [Accepted: 09/26/2022] [Indexed: 11/26/2022]
Abstract
INTRODUCTION A previous study has shown that two-thirds of patients with urinary tract infections (UTIs) caused by extended-spectrum beta-lactamase (ESBL)-producing Enterobacteriaceae experience recurrence with the same bacteria on subsequent UTI episodes. However, little is known about which patients suffer from UTI due to ESBL-producing Enterobacteriaceae repeatedly. This study aimed to investigate the risk factors for recurrent UTI due to repeated ESBL-producing organism infections. METHODS This retrospective, single-center, observational cohort study screened all patients with UTI caused by ESBL-producing strains between January 2012 and April 2019. Among the patients who were followed up, patients who experienced UTI recurrence were enrolled and divided into two groups: ESBL recurrence group and non-ESBL recurrence group. Multivariable Cox proportional hazards regression analyses were performed to evaluate the association between patient characteristics and the development of recurrent UTI caused by ESBL-producing Enterobacteriaceae. RESULTS A total of 330 patients were followed up after the diagnosis of UTI caused by ESBL-producing organisms. Among the patients, 115 (34.8%) experienced UTI recurrence, and 71 (61.7%) of them experienced subsequent recurrent UTI due to ESBL-producing organisms. Patient's age (hazard ratio [HR], 1.02; 95% confidence interval [CI], 1.00-1.04; P = 0.046) and recurrent UTI history (HR, 1.69; 95% CI, 1.05-2.72; P = 0.031) were significantly associated with an increased risk of recurrence with ESBL-producing Enterobacteriaceae. CONCLUSION These findings showed that a history of previous frequent UTI recurrence is the risk factor for recurrence of UTI due to repeated ESBL producing Enterobacteriaceae infections.
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Affiliation(s)
- Sun Tae Ahn
- Department of Urology, Korea University Guro Hospital, #148 Gurodong-ro, Guro-gu, Seoul, 08308, South Korea
| | - Hyun Soo Lee
- Department of Urology, Korea University Guro Hospital, #148 Gurodong-ro, Guro-gu, Seoul, 08308, South Korea
| | - Da Eun Han
- Department of Urology, Korea University Guro Hospital, #148 Gurodong-ro, Guro-gu, Seoul, 08308, South Korea
| | - Dong Hyun Lee
- Department of Urology, Korea University Guro Hospital, #148 Gurodong-ro, Guro-gu, Seoul, 08308, South Korea
| | - Jong Wook Kim
- Department of Urology, Korea University Guro Hospital, #148 Gurodong-ro, Guro-gu, Seoul, 08308, South Korea
| | - Min Gu Park
- Department of Urology, Inje University Seoul Paik Hospital, Inje University College of Medicine, Mareunnae-ro 9, Jung-gu, Seoul, South Korea
| | - Hong Seok Park
- Department of Urology, Korea University Guro Hospital, #148 Gurodong-ro, Guro-gu, Seoul, 08308, South Korea
| | - Du Geon Moon
- Department of Urology, Korea University Guro Hospital, #148 Gurodong-ro, Guro-gu, Seoul, 08308, South Korea
| | - Mi Mi Oh
- Department of Urology, Korea University Guro Hospital, #148 Gurodong-ro, Guro-gu, Seoul, 08308, South Korea.
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Sung WC, Jung HS, Bae JW, Kim JY, Lee DH. Segregation phenomena of binary solids in a pulsed fluidized bed. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.117881] [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: 10/15/2022]
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Kim I, Lee H, Kang BH, Lee DH, Nam YH, Roh MS, Um SJ. Chronic obstructive lung disease after ammonia inhalation burns: a report of two cases. KMJ 2022. [DOI: 10.7180/kmj.22.004] [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: 11/11/2022] Open
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Sung WC, Chung SW, Kim JY, Lee DH. CPFD
simulation on angle of repose with hopper geometries and particle properties. CAN J CHEM ENG 2022. [DOI: 10.1002/cjce.24551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Woo Chang Sung
- School of Chemical Engineering Sungkyunkwan University Suwon Gyeonggi‐do Republic of Korea
| | - Seok Woo Chung
- Institute for Advanced Engineering Yongin Gyeonggi‐do Republic of Korea
| | - Jun Young Kim
- School of Chemical Engineering Sungkyunkwan University Suwon Gyeonggi‐do Republic of Korea
- Institute of Convergent Chemical Engineering and Technology Sungkyunkwan University Suwon Gyeonggi‐do Republic of Korea
| | - Dong Hyun Lee
- School of Chemical Engineering Sungkyunkwan University Suwon Gyeonggi‐do Republic of Korea
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Lee DH, Park T, Yoo H. Biodegradable Polymer Composites for Electrophysiological Signal Sensing. Polymers (Basel) 2022; 14:polym14142875. [PMID: 35890650 PMCID: PMC9323782 DOI: 10.3390/polym14142875] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Revised: 07/09/2022] [Accepted: 07/13/2022] [Indexed: 12/23/2022] Open
Abstract
Electrophysiological signals are collected to characterize human health and applied in various fields, such as medicine, engineering, and pharmaceuticals. Studies of electrophysiological signals have focused on accurate signal acquisition, real-time monitoring, and signal interpretation. Furthermore, the development of electronic devices consisting of biodegradable and biocompatible materials has been attracting attention over the last decade. In this regard, this review presents a timely overview of electrophysiological signals collected with biodegradable polymer electrodes. Candidate polymers that can constitute biodegradable polymer electrodes are systemically classified by their essential properties for collecting electrophysiological signals. Moreover, electrophysiological signals, such as electrocardiograms, electromyograms, and electroencephalograms subdivided with human organs, are discussed. In addition, the evaluation of the biodegradability of various electrodes with an electrophysiology signal collection purpose is comprehensively revisited.
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Affiliation(s)
- Dong Hyun Lee
- Department of Electronic Engineering, Gachon University, 1342 Seongnam-daero, Seongnam 13120, Korea;
| | - Taehyun Park
- Department of Chemical and Biological Engineering, Gachon University, 1342 Seongnam-daero, Seongnam 13120, Korea;
| | - Hocheon Yoo
- Department of Electronic Engineering, Gachon University, 1342 Seongnam-daero, Seongnam 13120, Korea;
- Correspondence:
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Kim D, Park JY, Lee DH, Lim JE, Moon HB, Kim S, Lee K. Simultaneous assessment of organophosphate flame retardants, plasticizers, trace metals, and house dust mite allergens in settled house dust. Indoor Air 2022; 32:e13071. [PMID: 35904395 DOI: 10.1111/ina.13071] [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] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 05/18/2022] [Accepted: 06/18/2022] [Indexed: 06/15/2023]
Abstract
Settled house dust (SHD) is a reservoir for various contaminants, including endocrine-disrupting chemicals (EDCs), trace metals, and house dust mite allergens. This study aimed to characterize various chemical and biological contaminants in SHD and identify determinants governing the indoor contaminants. In total, 106 SHD samples were collected from 106 houses in Seoul and Gyeonggi Province, Korea, in 2021. Bedding dust samples were collected from 30 of these 106 houses. All participants completed a questionnaire comprised of housing and lifestyle-related factors. The samples were analyzed for 18 organophosphate flame retardants (OPFRs), 16 phthalates, five alternative plasticizers (APs), seven trace metals, and two house dust mite allergens (Dermatophagoides farinae type 1 [Der f1] and Dermatophagoides pteronyssinus type 1 [Der p1]). A multiple regression analysis was conducted to identify the determinants governing the concentrations and profiles of various contaminants. OPFRs, phthalates, APs, and trace metals were detected in all SHD samples, indicating ubiquitous contamination in indoor environments. Among the three EDC groups, APs were detected at the highest concentrations (geometric mean [GM] (geometric standard deviation, [GSD]): 1452 (1.6) μg/g in total), followed by phthalates (GM (GSD): 676 (1.4) μg/g in total) and OPFRs (GM (GSD): 10 (1.4) μg/g in total). Der f1 was detected in all bedding dust samples with significantly higher levels than Der p1 (GM (GSD): 0.1 (1.8) μg/g vs. 1.4 × 10-3 (2.3) μg/g). The concentrations of OPFRs, plasticizers, and trace metals in SHD were significantly associated with the type and number of electronic appliances and combustion activities. Der f1 was significantly associated with the number of occupants and water penetration. Ventilation, vacuum cleaning, and wet cleaning or dry mopping significantly reduced the levels of most contaminants in SHD. As residents are persistently exposed to a wide array of pollutants, comprehensive and adequate measures are required to prevent potential exposures.
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Affiliation(s)
- Donghyun Kim
- Department of Environmental Health Sciences, Graduate School of Public Health, Seoul National University, Seoul, South Korea
| | - Ji Young Park
- Institute of Health and Environment, Seoul National University, Seoul, South Korea
| | - Dong Hyun Lee
- Consulting & Technology for Environment Health and Safety, Seoul, South Korea
| | - Jae-Eun Lim
- Department of Marine Science and Convergence Engineering, College of Science and Convergence Technology, Hanyang University, Ansan, South Korea
| | - Hyo-Bang Moon
- Department of Marine Science and Convergence Engineering, College of Science and Convergence Technology, Hanyang University, Ansan, South Korea
| | - Sungkyoon Kim
- Department of Environmental Health Sciences, Graduate School of Public Health, Seoul National University, Seoul, South Korea
- Institute of Health and Environment, Seoul National University, Seoul, South Korea
| | - Kiyoung Lee
- Department of Environmental Health Sciences, Graduate School of Public Health, Seoul National University, Seoul, South Korea
- Institute of Health and Environment, Seoul National University, Seoul, South Korea
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