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Lee Y, Hwang Y, Kim M, Jeon H, Joo S, Fang S, Kim JW. DGAT2 Plays a Crucial Role to Control ESRRAPROX1 Transcriptional Network to Maintain Hepatic Mitochondrial Sustainability. Diabetes Metab J 2024:dmj.2023.0368. [PMID: 38644620 DOI: 10.4093/dmj.2023.0368] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 12/11/2023] [Indexed: 04/23/2024] Open
Abstract
Background Diacylglycerol O-acyltransferase 2 (DGAT2) synthesizes triacylglycerol (TG) from diacylglycerol; therefore, DGAT2 is considered as a therapeutic target for steatosis. However, the consequence of inhibiting DGAT2 is not fully investigated due to side effects including lethality and lipotoxicity. In this article, we observed the role of DGAT2 in hepatocarcinoma. Methods The role of DGAT2 is analyzed via loss-of-function assay. DGAT2 knockdown (KD) and inhibitor treatment on HepG2 cell line was analyzed. Cumulative analysis of cell metabolism with bioinformatic data were assessed, and further compared with different cohorts of liver cancer patients and non-alcoholic fatty liver disease (NAFLD) patients to elucidate how DGAT2 is regulating cancer metabolism. Results Mitochondrial function is suppressed in DGAT2 KD HepG2 cell along with the decreased lipid droplets. In the aspect of the cancer, DGAT2 KD upregulates cell proliferation. Analyzing transcriptome of NAFLD and hepatocellular carcinoma (HCC) patients highlights negatively correlating expression patterns of 73 lipid-associated genes including DGAT2. Cancer patients with the lower DGAT2 expression face lower survival rate. DGAT2 KD cell and patients' transcriptome show downregulation in estrogen- related receptor alpha (ESRRA) via integrated system for motif activity response analysis (ISMARA), with increased dimerization with corepressor prospero homeobox 1 (PROX1). Conclusion DGAT2 sustains the stability of mitochondria in hepatoma via suppressing ESRRA-PROX1 transcriptional network and hinders HCC from shifting towards glycolytic metabolism, which lowers cell proliferation.
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Affiliation(s)
- Yoseob Lee
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Korea
- Department of Biochemistry and Molecular Biology, Yonsei University College of Medicine, Seoul, Korea
- Chronic Intractable Disease for Systems Medicine Research Center, Yonsei University College of Medicine, Seoul, Korea
| | - Yeseong Hwang
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Korea
- Department of Biomedical Sciences, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Minki Kim
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Korea
- Department of Biomedical Sciences, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Hyeonuk Jeon
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Korea
- Department of Biomedical Sciences, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Seyeon Joo
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Korea
- Department of Biomedical Sciences, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Sungsoon Fang
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Korea
- Chronic Intractable Disease for Systems Medicine Research Center, Yonsei University College of Medicine, Seoul, Korea
- Department of Biomedical Sciences, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Jae-Woo Kim
- Department of Biochemistry and Molecular Biology, Yonsei University College of Medicine, Seoul, Korea
- Chronic Intractable Disease for Systems Medicine Research Center, Yonsei University College of Medicine, Seoul, Korea
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Choi JW, Yang M, Kim JW, Shin YM, Shin YG, Park S. Prognostic prediction of sepsis patient using transformer with skip connected token for tabular data. Artif Intell Med 2024; 149:102804. [PMID: 38462275 DOI: 10.1016/j.artmed.2024.102804] [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: 12/21/2022] [Revised: 09/25/2023] [Accepted: 02/08/2024] [Indexed: 03/12/2024]
Abstract
Sepsis is known as a common syndrome in intensive care units (ICU), and severe sepsis and septic shock are among the leading causes of death worldwide. The purpose of this study is to develop a deep learning model that supports clinicians in efficiently managing sepsis patients in the ICU by predicting mortality, ICU length of stay (>14 days), and hospital length of stay (>30 days). The proposed model was developed using 591 retrospective data with 16 tabular data related to a sequential organ failure assessment (SOFA) score. To analyze tabular data, we designed the modified architecture of the transformer that has achieved extraordinary success in the field of languages and computer vision tasks in recent years. The main idea of the proposed model is to use a skip-connected token, which combines both local (feature-wise token) and global (classification token) information as the output of a transformer encoder. The proposed model was compared with four machine learning models (ElasticNet, Extreme Gradient Boosting [XGBoost]), and Random Forest) and three deep learning models (Multi-Layer Perceptron [MLP], transformer, and Feature-Tokenizer transformer [FT-Transformer]) and achieved the best performance (mortality, area under the receiver operating characteristic (AUROC) 0.8047; ICU length of stay, AUROC 0.8314; hospital length of stay, AUROC 0.7342). We anticipate that the proposed model architecture will provide a promising approach to predict the various clinical endpoints using tabular data such as electronic health and medical records.
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Affiliation(s)
- Jee-Woo Choi
- Mediv Corporation, Cheongju-si, Chungcheongbuk-do, Republic of Korea; Chungbuk National University College of Medicine, Cheongju-si, Chungcheongbuk-do, Republic of Korea
| | - Minuk Yang
- Mediv Corporation, Cheongju-si, Chungcheongbuk-do, Republic of Korea; Chungbuk National University College of Medicine, Cheongju-si, Chungcheongbuk-do, Republic of Korea
| | - Jae-Woo Kim
- AI Research Center, Chungbuk National University Hospital, Cheongju-si, Chungcheongbuk-do, Republic of Korea; Chungbuk National University College of Medicine, Cheongju-si, Chungcheongbuk-do, Republic of Korea
| | - Yoon Mi Shin
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Chungbuk National University Hospital, Cheongju-si, Chungcheongbuk-do, Republic of Korea; Chungbuk National University College of Medicine, Cheongju-si, Chungcheongbuk-do, Republic of Korea
| | - Yong-Goo Shin
- Department of Electronics and Information Engineering, Korea University, Sejong-si, Republic of Korea.
| | - Seung Park
- Department of Biomedical Engineering, Chungbuk National University Hospital, Cheongju-si, Chungcheongbuk-do, Republic of Korea; Chungbuk National University College of Medicine, Cheongju-si, Chungcheongbuk-do, Republic of Korea.
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Hwang N, Yoon BK, Chun KH, Kim H, Lee Y, Kim JW, Jeon H, Kim TH, Kim MY, Fang S, Cheong JH, Kim JW. Caveolin-1 mediates the utilization of extracellular proteins for survival in refractory gastric cancer. Exp Mol Med 2023; 55:2461-2472. [PMID: 37919422 PMCID: PMC10689497 DOI: 10.1038/s12276-023-01109-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 07/20/2023] [Accepted: 07/31/2023] [Indexed: 11/04/2023] Open
Abstract
Despite advances in cancer therapy, the clinical outcome of patients with gastric cancer remains poor, largely due to tumor heterogeneity. Thus, finding a hidden vulnerability of clinically refractory subtypes of gastric cancer is crucial. Here, we report that chemoresistant gastric cancer cells rely heavily on endocytosis, facilitated by caveolin-1, for survival. caveolin-1 was highly upregulated in the most malignant stem-like/EMT/mesenchymal (SEM)-type gastric cancer cells, allowing caveolin-1-mediated endocytosis and utilization of extracellular proteins via lysosomal degradation. Downregulation of caveolin-1 alone was sufficient to induce cell death in SEM-type gastric cancer cells, emphasizing its importance as a survival mechanism. Consistently, chloroquine, a lysosomal inhibitor, successfully blocked caveolin-1-mediated endocytosis, leading to the marked suppression of tumor growth in chemorefractory gastric cancer cells in vitro, including patient-derived organoids, and in vivo. Together, our findings suggest that caveolin-1-mediated endocytosis is a key metabolic pathway for gastric cancer survival and a potential therapeutic target.
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Affiliation(s)
- Nahee Hwang
- Department of Biochemistry and Molecular Biology, Yonsei University College of Medicine, Seoul, Republic of Korea
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Republic of Korea
- Chronic Intractable Disease for Systems Medicine Research Center, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Bo Kyung Yoon
- Department of Biochemistry and Molecular Biology, Yonsei University College of Medicine, Seoul, Republic of Korea
- Chronic Intractable Disease for Systems Medicine Research Center, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Kyu-Hye Chun
- Department of Biochemistry and Molecular Biology, Yonsei University College of Medicine, Seoul, Republic of Korea
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Republic of Korea
- Chronic Intractable Disease for Systems Medicine Research Center, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Hyeonhui Kim
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Republic of Korea
- Severance Biomedical Science Institute, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yoseob Lee
- Department of Biochemistry and Molecular Biology, Yonsei University College of Medicine, Seoul, Republic of Korea
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Republic of Korea
- Chronic Intractable Disease for Systems Medicine Research Center, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jae-Won Kim
- Department of Biochemistry and Molecular Biology, Yonsei University College of Medicine, Seoul, Republic of Korea
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Republic of Korea
- Chronic Intractable Disease for Systems Medicine Research Center, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Hyeonuk Jeon
- Department of Biochemistry and Molecular Biology, Yonsei University College of Medicine, Seoul, Republic of Korea
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Republic of Korea
- Chronic Intractable Disease for Systems Medicine Research Center, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Tae-Hyun Kim
- Department of Biochemistry and Molecular Biology, Yonsei University College of Medicine, Seoul, Republic of Korea
- Chronic Intractable Disease for Systems Medicine Research Center, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Mi-Young Kim
- Department of Biochemistry and Molecular Biology, Yonsei University College of Medicine, Seoul, Republic of Korea
- Chronic Intractable Disease for Systems Medicine Research Center, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sungsoon Fang
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Republic of Korea.
- Chronic Intractable Disease for Systems Medicine Research Center, Yonsei University College of Medicine, Seoul, Republic of Korea.
- Severance Biomedical Science Institute, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
| | - Jae-Ho Cheong
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Republic of Korea.
- Chronic Intractable Disease for Systems Medicine Research Center, Yonsei University College of Medicine, Seoul, Republic of Korea.
- Department of Surgery, Yonsei University College of Medicine, Seoul, Republic of Korea.
- Department of Biomedical Systems Informatics, Yonsei University College of Medicine, Seoul, Republic of Korea.
- Department of R&D, Veraverse Inc., Seoul, Republic of Korea.
| | - Jae-Woo Kim
- Department of Biochemistry and Molecular Biology, Yonsei University College of Medicine, Seoul, Republic of Korea.
- Chronic Intractable Disease for Systems Medicine Research Center, Yonsei University College of Medicine, Seoul, Republic of Korea.
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Go E, Kim JW, Jeong JW, Park S, Kang JT, Choi S, Yeon JH, Song YH. Effects of Interfacial Electron Transport on Field Electron Emission from Carbon Nanotube Paste Emitters. ACS Appl Mater Interfaces 2023; 15:49854-49864. [PMID: 37816129 DOI: 10.1021/acsami.3c11718] [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: 10/12/2023]
Abstract
Field electron emission from carbon nanotubes (CNT) is preceded by the transport of electrons from the cathode metal to emission sites. Specifically, a supporting layer indispensable for adhesion of CNT paste emitters onto the cathode metal would impose a potential barrier, depending on its work function and interfacial electron transport behaviors. In this paper, we investigated the supporting layer of silicon carbide and nickel nanoparticles reacted onto a Kovar alloy (Fe-Ni-Co) cathode substrate, which has been adopted for reliable CNT paste emitters. The X-ray diffraction, X-ray photoelectron spectroscopy, ultraviolet photoelectron spectroscopy, and electrical conductivity measurements showed that the reaction of silicon carbide and nickel nanoparticles on the Kovar metal strongly depends upon the post-vacuum-annealing conditions and can be classified into two procedures of a diffusion-induced reaction (DIR) and a diffusion-limited reaction (DLR). The prolonged annealing at 750 °C for 5 h before the main annealing of the CNT paste emitters at 800 °C for 5 min led to the DIR that has enhanced the Ni silicide phase and a lower potential barrier for the interfacial electron transport, resulting in increased and weakly temperature-dependent field electron emission from the CNT paste emitters. On the other hand, the DLR with only the main anneal of the CNT paste emitters at 800 °C for 5 min gave rise to a higher potential barrier for the electron transport and so lower and strongly temperature-dependent field electron emission. From the results of the interfacial electron transport for the DIR and DLR mechanisms in the CNT paste emitters, we concluded that the ambient temperature dependency of field electron emission from CNT tips in the moderate range of up to 400 °C, still controversial, is mainly attributed to the supporting layer of the CNT emitter rather than its intrinsic electron emission.
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Affiliation(s)
- Eunsol Go
- Intelligent Components and Sensors Research Section, Electronics and Telecommunications Research Institute (ETRI), 218 Gajeong-ro, Yuseong-gu, Daejeon 34129, Korea
| | - Jae-Woo Kim
- Intelligent Components and Sensors Research Section, Electronics and Telecommunications Research Institute (ETRI), 218 Gajeong-ro, Yuseong-gu, Daejeon 34129, Korea
| | - Jin-Woo Jeong
- Intelligent Components and Sensors Research Section, Electronics and Telecommunications Research Institute (ETRI), 218 Gajeong-ro, Yuseong-gu, Daejeon 34129, Korea
| | - Sora Park
- Intelligent Components and Sensors Research Section, Electronics and Telecommunications Research Institute (ETRI), 218 Gajeong-ro, Yuseong-gu, Daejeon 34129, Korea
| | - Jun-Tae Kang
- Intelligent Components and Sensors Research Section, Electronics and Telecommunications Research Institute (ETRI), 218 Gajeong-ro, Yuseong-gu, Daejeon 34129, Korea
| | - Sunghoon Choi
- Intelligent Components and Sensors Research Section, Electronics and Telecommunications Research Institute (ETRI), 218 Gajeong-ro, Yuseong-gu, Daejeon 34129, Korea
| | - Ji-Hwan Yeon
- Intelligent Components and Sensors Research Section, Electronics and Telecommunications Research Institute (ETRI), 218 Gajeong-ro, Yuseong-gu, Daejeon 34129, Korea
| | - Yoon-Ho Song
- Intelligent Components and Sensors Research Section, Electronics and Telecommunications Research Institute (ETRI), 218 Gajeong-ro, Yuseong-gu, Daejeon 34129, Korea
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Kim GH, Kim JW, Kim KH, Kang H, Moon JY, Shin YM, Park S. FT-GAT: Graph neural network for predicting spontaneous breathing trial success in patients with mechanical ventilation. Comput Methods Programs Biomed 2023; 240:107673. [PMID: 37336152 DOI: 10.1016/j.cmpb.2023.107673] [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: 01/21/2023] [Revised: 05/30/2023] [Accepted: 06/08/2023] [Indexed: 06/21/2023]
Abstract
BACKGROUND AND OBJECTIVES Intensive care unit (ICU) physicians perform weaning procedures considering complex clinical situations and weaning protocols; however, liberating critical patients from mechanical ventilation (MV) remains challenging. Therefore, this study aims to aid physicians in deciding the early liberation of patients from MV by developing an artificial intelligence model that predicts the success of spontaneous breathing trials (SBT). METHODS We retrospectively collected data of 652 critical patients (SBT success: 641, SBT failure: 400) who received MV at the Chungbuk National University Hospital (CBNUH) ICU from July 2020 to July 2022, including mixed and trauma ICUs. Patients underwent SBTs according to the CBNUH weaning protocol or physician's decision, and SBT success was defined as extubation performed by the physician on the SBT day. Additionally, our dataset comprised 11 numerical and 2 categorical features that can be obtained for any ICU patient, such as vital signs and MV setting values. To predict SBT success, we analyzed tabular data using a graph neural network-based approach. Specifically, the graph structure was designed considering feature correlation, and a novel deep learning model, called feature tokenizer graph attention network (FT-GAT), was developed for graph analysis. FT-GAT transforms the input features into high-dimensional embeddings and analyzes the graph via the attention mechanism. RESULTS The quantitative evaluation results indicated that FT-GAT outperformed conventional models and clinical indicators by achieving the following model performance (AUROC): FT-GAT (0.80), conventional models (0.69-0.79), and clinical indicators (0.65-0.66) CONCLUSIONS: Through timely detection critical patients who can succeed in SBTs, FT-GAT can help prevent long-term use of MV and potentially lead to improvement in patient outcomes.
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Affiliation(s)
- Geun-Hyeong Kim
- Medical AI Research Team, Chungbuk National University Hospital, Cheongju-si, Chungcheongbuk-do, 28644, Rep. of Korea
| | - Jae-Woo Kim
- Medical AI Research Team, Chungbuk National University Hospital, Cheongju-si, Chungcheongbuk-do, 28644, Rep. of Korea
| | - Ka Hyun Kim
- Medical AI Research Team, Chungbuk National University Hospital, Cheongju-si, Chungcheongbuk-do, 28644, Rep. of Korea
| | - Hyeran Kang
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Chungbuk National University Hospital, Chungbuk National University College of Medicine, Cheongju-si, Chungcheongbuk-do, 28644, Rep. of Korea
| | - Jae Young Moon
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Chungnam National University Sejong Hospital, Chungnam National University College of Medicine, 35015, Rep. of Korea
| | - Yoon Mi Shin
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Chungbuk National University Hospital, Chungbuk National University College of Medicine, Cheongju-si, Chungcheongbuk-do, 28644, Rep. of Korea.
| | - Seung Park
- Department of Biomedical Engineering, Chungbuk National University Hospital, Cheongju-si, Chungcheongbuk-do, 28644, Rep. of Korea.
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Gomes Lucas C, Sullivan RM, Pfeiffer CA, Chen PR, Kim J, Sponchiado M, Conley AJ, Prather RS, Wells KD, Geisert RD. Porcine-specific expression of the three functional CYP19 paralogs in early conceptus, placenta, and gonads. Reproduction 2023; 166:263-269. [PMID: 37490351 DOI: 10.1530/rep-23-0189] [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: 05/26/2023] [Accepted: 07/27/2023] [Indexed: 07/27/2023]
Abstract
In brief Aromatase catalyzes the synthesis of estrogens and has been shown to have an important role during the establishment of pregnancy in the pig. This study confirmed the differential expression of the three aromatase isoforms. Abstract Although three porcine aromatase isoforms have been identified, their gene expression profiles in reproduction are still poorly understood. Here, we identified by Sanger sequencing unique nucleotide signatures for the three paralogous copies of Cyp19 and analyzed by RT-PCR the occurrence of the Cyp19 and Cyp17a1 transcripts at different tissues and stages of conceptus and fetal-placental development. Cyp19a1 and Cyp19a3 expressions were detected in conceptuses and gonads, respectively. Cyp19a2 transcripts were identified on both the conceptuses and the placenta samples. Transcripts for Cyp17a1 were detected predominantly in conceptus and gonads. In the endometrium of day 21 pregnant females, as well as days 12 and 17 pseudopregnant females, we did not detect the expression of Cyp19a1, Cyp19a2, or Cyp19a3. In our study, we have demonstrated distinct transcriptional regulation for the three functional Cyp19 paralogs and a potential role for Cyp17a1 in controlling the secretion of estrogen from the conceptus and the placenta.
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Affiliation(s)
- Caroline Gomes Lucas
- Division of Animal Sciences, University of Missouri, Columbia, Missouri, United States of America
| | - Riley M Sullivan
- Division of Animal Sciences, University of Missouri, Columbia, Missouri, United States of America
| | - Caroline A Pfeiffer
- Division of Animal Sciences, University of Missouri, Columbia, Missouri, United States of America
| | - Paula R Chen
- Department of Agriculture - Agricultural Research Service, Plant Genetics Research Unit, Columbia, Missouri, USA
| | - JaeWoo Kim
- Division of Animal Sciences, University of Missouri, Columbia, Missouri, United States of America
| | - Mariana Sponchiado
- Division of Animal Sciences, University of Missouri, Columbia, Missouri, United States of America
| | - Alan J Conley
- Department of Population Health and Reproduction, School of Veterinary Medicine, University of California at Davis, Davis, California, USA
| | - Randall S Prather
- Division of Animal Sciences, University of Missouri, Columbia, Missouri, United States of America
| | - Kevin D Wells
- Division of Animal Sciences, University of Missouri, Columbia, Missouri, United States of America
| | - Rodney D Geisert
- Division of Animal Sciences, University of Missouri, Columbia, Missouri, United States of America
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Pyo JH, Lee SY, Lee IJ, Kim SM, Kim JW. Beneficial Role of Multi-Disciplinary Treatment for Anaplastic Thyroid Cancer with Initial Distant Metastasis. Int J Radiat Oncol Biol Phys 2023; 117:e616-e617. [PMID: 37785850 DOI: 10.1016/j.ijrobp.2023.06.1996] [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: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Anaplastic thyroid cancer (ATC) is a rare, highly aggressive tumor, with median survival around 5 months. Approximately half of the ATC patients presents with distant metastases at diagnosis, showing even more devastating prognosis, yet no outcome analysis had been reported. In this study, we aim to evaluate the clinical outcome of M1 ATC patients, and to define the group of patients who would benefit from local treatment based on multi-disciplinary approach. MATERIALS/METHODS A total of 133 histology-confirmed ATC patients underwent protocol-based multidisciplinary treatment including surgery and chemoradiotherapy (CRT) between May 2016 and January 2022. Patients received intensity-modulated radiotherapy of 30 fractions concurrently with paclitaxel on days 1, 8 and 15 every 4 weeks, and lenvatinib was added upon progression. After 18 fractions of CRT, interim response analysis using modified RECIST was conducted for adaptive treatment planning. We reviewed 58 patients with distant metastasis at diagnosis (stage IVC). Overall survival (OS) and progression-free survival (PFS) were measured from the day of diagnosis. RESULTS Most common metastatic site was lung (91.4%), followed by bone (31.0%) and brain (5.2%). Lenvatinib was added for 35 patients after any sign of progression. Fourteen patients received upfront surgery (16 debulking and 5 total) followed by adjuvant CRT in 16 patients. Thirty-one patients received upfront CRT with 2 patients receiving total resection after sufficient down-staging. Six (10%) patients could not complete radiotherapy but continued receiving systemic treatment. The median follow-up was 5.9 months. The median and 1-year OS were 6.2 months and 20.5%, and PFS were 3.7 months and 3.5%. Total RT dose over 60 Gy significantly improved median OS (7.5 vs 4.1 months, p = 0.012) and median PFS (4.4 vs 3.0, p = 0.010). Patients with less than 10 initial metastatic tumors showed better median OS (9.1 vs 4.6 months, p = 0.002) but not PFS (5.1 vs 3.6, p = 0.485). At interim analysis, early response (CR, PR and SD) of primary tumor was not associated with survival, while progression of distant metastases showed significantly worse median OS (9.8 vs 4.6 months, p = 0.001). More than 10 metastatic tumors (HR 2.73, 95% CI 1.32-5.66) and stable metastasis at interim analysis (HR 2.39, 95% CI 1.04-5.48) remained as significant factor in the multivariable cox regression analysis. Median OS and PFS of patients with less than 10 metastases showing no progression at interim analysis were 9.1 months, and 5.1 months. CONCLUSION Local treatment combined with chemotherapy for M1 ATC patients showed outcome comparable to those of non-metastatic ATC results. Active local treatment should be considered especially for patients with less than 10 metastases, and patients without distant progression in early response evaluation.
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Affiliation(s)
- J H Pyo
- Department of Radiation Oncology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea, Republic of (South) Korea
| | - S Y Lee
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea, Republic of (South) Korea
| | - I J Lee
- Department of Radiation Oncology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea, Republic of (South) Korea
| | - S M Kim
- Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea, Republic of (South) Korea
| | - J W Kim
- Department of Radiation Oncology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea, Republic of (South) Korea
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Kim J, Sung J, Yang D, Cho KS, Chung BH, Kim J, Kim JW. Optimal Planning Target Margin for Prostate Radiotherapy Based on Interfractional and Intrafractional Variability Assessment during 1.5T MR-Guided Radiotherapy. Int J Radiat Oncol Biol Phys 2023; 117:e401. [PMID: 37785341 DOI: 10.1016/j.ijrobp.2023.06.1534] [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: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) MR-guided radiotherapy (MRgRT) provides superior soft-tissue contrast over CT-based image guidance. We collected and analyzed daily pre-treatment (PRE) and real-time motion-monitoring (MM) MR images of patients receiving prostate radiotherapy to assess interfractional and intrafractional variability of prostate using two localization methods: pelvic bony anatomy (bone) and prostate during online adaptive radiotherapy (ART). MATERIALS/METHODS PRE and MM MRIs for the first five fractions of twenty prostate cancer patients who received definitive MRgRT with 1.5T MRI were collected. Using MIM software, rigid registration between PRE MRI and planning CT images based on pelvic bony anatomy and prostate reproduced bone localization and online ART, respectively. To determine interfractional setup margin (SM), prostate was delineated on all PRE MRIs registered after bone and prostate localizations by a radiation oncologist, and centroid values of prostate contours between planning CT and PRE MRIs were compared. To determine interobserver variability, another radiation oncologist, a medical physicist, and a radiotherapist contoured prostate for both localization methods. For internal margin (IM) assessment, we used MM MRIs of the five patients who had all three sets of coronal, sagittal, and axial cine images and determined the maximum contour displacement using in-house MATLAB-based software converting binary image files to 2D cine images with a superimposed grid of 1 mm spacing. RESULTS A total of 100 PRE and 25 MM MRIs were analyzed. Four hundred prostate contours were delineated on MR images registered with planning CT based on both bony anatomy and prostate. After bone localization, SM was 0.57±0.42 mm in left-right (LR), 2.45±1.98 mm in anterior-posterior (AP), and 2.28±2.08 mm in superior-inferior (SI) directions, and IO was 1.06±0.58 mm in LR, 2.32±1.08 mm in AP, and 3.30±1.85 mm in SI directions. After prostate localization, SM was 0.76±0.57 mm in LR, 1.89±1.60 mm in AP, and 2.2±1.79 mm in SI directions, and IO was 1.11±0.55 mm in LR, 2.13±1.07 mm in AP, and 3.53±1.65 mm in SI directions. Average IM was 2.12±0.86 mm, 2.24±1.07 mm, and 2.84±0.88 mm in LR, AP, and SI directions, respectively. CONCLUSION Using daily MRIs from MRgRT, we showed that movements in the SI direction were the largest source of variability in prostate definitive RT. In addition, interobserver variability was a non-negligible source of margin. Optimal PTV margin should also consider internal margin, especially in the SI direction.
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Affiliation(s)
- J Kim
- Department of Radiation Oncology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea, Republic of (South) Korea
| | - J Sung
- Department of Radiation Oncology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea, Republic of (South) Korea
| | - D Yang
- Department of Radiation Oncology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea, Republic of (South) Korea
| | - K S Cho
- Department of Urology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea, Republic of (South) Korea
| | - B H Chung
- Department of Urology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea, Republic of (South) Korea
| | - J Kim
- Department of Radiation Oncology, Yonsei University College of Medicine, Seoul, Korea, Republic of (South) Korea
| | - J W Kim
- Department of Radiation Oncology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea, Republic of (South) Korea
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9
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Chun KH, Park YC, Hwang N, Yoon BK, Kim JW, Fang S. Gene signature from cutaneous autoimmune diseases provides potential immunotherapy-relevant biomarkers in melanoma. Sci Rep 2023; 13:15023. [PMID: 37700026 PMCID: PMC10497583 DOI: 10.1038/s41598-023-42238-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 09/07/2023] [Indexed: 09/14/2023] Open
Abstract
Immune checkpoint inhibitors (ICIs) are promising agents for treating melanoma. Given that autoimmune skin diseases exhibit hyper immune reaction, investigation of immune cells from autoimmune skin disease is crucial to validate the effectiveness of ICIs in melanoma treatment. We employed multipanel markers to predict the response to immune checkpoint inhibitors by characterizing the gene expression signatures of skin immune cells in systemic lupus erythematosus (SLE), atopic dermatitis (AD), and psoriasis (PS). By analyzing single-cell RNA sequencing data from each dataset, T cell gene signatures from autoimmune skin diseases exhibit a complex immune response in tumors that responded to immunotherapy. Based on that CD86 and CD80 provide essential costimulatory signals for T cell activation, we observed that interaction of CD86 signaling has been enhanced in the T cells of patients with SLE, AD, and PS. Our analysis revealed a common increase in CD86 signals from dendritic cells (DCs) to T cells in patients with SLE, AD, and PS, confirming that dendritic cells produce pro-inflammatory cytokines to activate T cells. Thus, we hypothesize that T cell gene signatures from autoimmune skin diseases exhibit a pro-inflammatory response and have the potential to predict cancer immunotherapy. Our study demonstrated that T cell gene signatures derived from inflammatory skin diseases, particularly SLE and PS, hold promise as potential biomarkers for predicting the response to immune checkpoint blockade therapy in patients with melanoma. Our data provide an understanding of the immune-related characteristics and differential gene expression patterns in autoimmune skin diseases, which may represent promising targets for melanoma immunotherapy.
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Affiliation(s)
- Kyu-Hye Chun
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, 03722, Korea
- Department of Biochemistry and Molecular Biology, Yonsei University College of Medicine, Seoul, 03722, Korea
- Chronic Intractable Disease for Systems Medicine Research Center, Yonsei University College of Medicine, Seoul, 03722, Korea
| | - Ye-Chan Park
- Severance Biomedical Science Institute, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, 03722, Korea
| | - Nahee Hwang
- Department of Biochemistry and Molecular Biology, Yonsei University College of Medicine, Seoul, 03722, Korea
- Chronic Intractable Disease for Systems Medicine Research Center, Yonsei University College of Medicine, Seoul, 03722, Korea
| | - Bo Kyung Yoon
- Department of Biochemistry and Molecular Biology, Yonsei University College of Medicine, Seoul, 03722, Korea
- Chronic Intractable Disease for Systems Medicine Research Center, Yonsei University College of Medicine, Seoul, 03722, Korea
| | - Jae-Woo Kim
- Department of Biochemistry and Molecular Biology, Yonsei University College of Medicine, Seoul, 03722, Korea.
- Chronic Intractable Disease for Systems Medicine Research Center, Yonsei University College of Medicine, Seoul, 03722, Korea.
| | - Sungsoon Fang
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, 03722, Korea.
- Chronic Intractable Disease for Systems Medicine Research Center, Yonsei University College of Medicine, Seoul, 03722, Korea.
- Severance Biomedical Science Institute, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, 03722, Korea.
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10
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Kim H, Ahn HS, Hwang N, Huh Y, Bu S, Seo KJ, Kwon SH, Lee HK, Kim JW, Yoon BK, Fang S. Epigenomic landscape exhibits interferon signaling suppression in the patient of myocarditis after BNT162b2 vaccination. Sci Rep 2023; 13:8926. [PMID: 37264110 DOI: 10.1038/s41598-023-36070-y] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 05/29/2023] [Indexed: 06/03/2023] Open
Abstract
After the outbreak of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic, a novel mRNA vaccine (BNT162b2) was developed at an unprecedented speed. Although most countries have achieved widespread immunity from vaccines and infections, yet people, even who have recovered from SARS-CoV-2 infection, are recommended to receive vaccination due to their effectiveness in lowering the risk of recurrent infection. However, the BNT162b2 vaccine has been reported to increase the risk of myocarditis. To our knowledge, for the first time in this study, we tracked changes in the chromatin dynamics of peripheral blood mononuclear cells (PBMCs) in the patient who underwent myocarditis after BNT162b2 vaccination. A longitudinal study of chromatin accessibility using concurrent analysis of single-cell assays for transposase-accessible chromatin with sequencing and single-cell RNA sequencing showed downregulation of interferon signaling and upregulated RUNX2/3 activity in PBMCs. Considering BNT162b2 vaccination increases the level of interferon-α/γ in serum, our data highlight the immune responses different from the conventional responses to the vaccination, which is possibly the key to understanding the side effects of BNT162b2 vaccination.
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Affiliation(s)
- Hyeonhui Kim
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, 03722, Korea
- Severance Biomedical Science Institute, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, 03722, Korea
| | - Hyo-Suk Ahn
- Division of Cardiology, Department of Internal Medicine, The Catholic University of Korea, Uijeongbu St. Mary's Hospital, Seoul, 06591, Korea
- Catholic Research Institute for Intractable Cardiovascular Disease (CRID), College of Medicine, The Catholic University of Korea, Seoul, 06591, Korea
| | - Nahee Hwang
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, 03722, Korea
- Department of Biochemistry and Molecular Biology, Yonsei University College of Medicine, Seoul, 03722, Korea
| | - Yune Huh
- Department of Medicine, Yonsei University College of Medicine, Seoul, South Korea
| | - Seonghyeon Bu
- Division of Cardiology, Department of Internal Medicine, The Catholic University of Korea, Uijeongbu St. Mary's Hospital, Seoul, 06591, Korea
- Catholic Research Institute for Intractable Cardiovascular Disease (CRID), College of Medicine, The Catholic University of Korea, Seoul, 06591, Korea
| | - Kyung Jin Seo
- Department of Hospital Pathology, College of Medicine, The Catholic University of Korea, Uijeongbu St. Mary's Hospital, Seoul, South Korea
| | - Se Hwan Kwon
- Department of Radiology, Kyung Hee University Medical Center, Seoul, South Korea
| | - Hae-Kyung Lee
- Severance Biomedical Science Institute, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, 03722, Korea
| | - Jae-Woo Kim
- Department of Biochemistry and Molecular Biology, Yonsei University College of Medicine, Seoul, 03722, Korea
| | - Bo Kyung Yoon
- Department of Biochemistry and Molecular Biology, Yonsei University College of Medicine, Seoul, 03722, Korea.
| | - Sungsoon Fang
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, 03722, Korea.
- Severance Biomedical Science Institute, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, 03722, Korea.
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11
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Kwon CS, Lee JE, Jeon BE, Woo YR, Kim YS, Kim JW, Park CJ, Jang SY, Kim SW. Anti-Leukemic Effects of Idesia polycarpa Maxim Branch on Human B-Cell Acute Lymphoblastic Leukemia Cells. Curr Issues Mol Biol 2023; 45:4035-4049. [PMID: 37232726 DOI: 10.3390/cimb45050257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/21/2023] [Accepted: 04/29/2023] [Indexed: 05/27/2023] Open
Abstract
Patients with pediatric B-cell acute lymphoblastic leukemia (B-ALL) have a high survival rate, yet the prognosis of adults and patients with relapsed/refractory disease is relatively poor. Therefore, it is imperative to develop new therapeutic strategies. Here, we screened 100 plant extracts from South Korean Flora and investigated their anti-leukemic effect using CCRF-SB cells as a B-ALL model. The top cytotoxic extract identified in this screening was the Idesia polycarpa Maxim. branch (IMB), which efficiently inhibited the survival and proliferation of CCRF-SB cells, while having minimal to no impact on normal murine bone marrow cells. Mechanistically, the IMB-induced proapoptotic effect involves the increase of caspase 3/7 activity, which was shown to be associated with the disruption of the mitochondrial membrane potential (MMP) through the reduction in antiapoptotic Bcl-2 family expression. IMB also promoted the differentiation of CCRF-SB cells via the upregulation of the expression of differentiation-related genes, PAX5 and IKZF1. Given that resistance to glucocorticoid (GC) is often found in patients with relapsed/refractory ALL, we investigated whether IMB could restore GC sensitivity. IMB synergized GC to enhance apoptotic rate by increasing GC receptor expression and downmodulating mTOR and MAPK signals in CCRF-SB B-ALL cells. These results suggest that IMB has the potential to be a novel candidate for the treatment of B-ALL.
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Affiliation(s)
- Chan-Seong Kwon
- Department of Integrated Biological Science, Pusan National University, Busan 46241, Republic of Korea
| | - Ji-Eun Lee
- Department of Integrated Biological Science, Pusan National University, Busan 46241, Republic of Korea
| | - Byeol-Eun Jeon
- Department of Integrated Biological Science, Pusan National University, Busan 46241, Republic of Korea
| | - Ye-Rin Woo
- Department of Integrated Biological Science, Pusan National University, Busan 46241, Republic of Korea
| | - Yun-Seo Kim
- Department of Biological Sciences, Pusan National University, Busan 46241, Republic of Korea
| | - Jae-Woo Kim
- Department of Biological Sciences, Pusan National University, Busan 46241, Republic of Korea
| | - Chae-Jin Park
- Department of Biological Sciences, Pusan National University, Busan 46241, Republic of Korea
| | - Seo-Yun Jang
- Department of Biological Sciences, Pusan National University, Busan 46241, Republic of Korea
| | - Sang-Woo Kim
- Department of Integrated Biological Science, Pusan National University, Busan 46241, Republic of Korea
- Department of Biological Sciences, Pusan National University, Busan 46241, Republic of Korea
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12
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Ryu WJ, Kim JW, Kim DS. Resource Allocation in Downlink VLC-NOMA Systems for Factory Automation Scenario. Sensors (Basel) 2022; 22:9407. [PMID: 36502109 PMCID: PMC9739748 DOI: 10.3390/s22239407] [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] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/30/2022] [Accepted: 11/30/2022] [Indexed: 06/17/2023]
Abstract
Industry 4.0 requires high-speed data exchange that includes fast, reliable, low-latency, and cost-effective data transmissions. As visible light communication (VLC) can provide reliable, low-latency, and secure connections that do not penetrate walls and are immune to electromagnetic interference; it can be considered a solution for Industry 4.0. The non-orthogonal multiple access (NOMA) technique can achieve high spectral efficiency using the same frequency and time resources for multiple users. It means that smaller amounts of resources will be used compared with orthogonal multiple access (OMA). Therefore, handling multiple data transmissions with VLC-NOMA can be easier for factory automation than OMA. However, as the transmit power is split, the reliability is reduced. Therefore, this study proposed a deep neural network (DNN)-based power-allocation algorithm (DBPA) to improve the reliability of the system. Further, to schedule multiple nodes in VLC-NOMA system, a priority-based user-pairing (PBUP) scheme is proposed. The proposed techniques in VLC-NOMA system were evaluated in terms of the factory automation scenario and showed that it improves reliability and reduces missed deadlines.
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Affiliation(s)
- Won-Jae Ryu
- ICT Convergence Research Center, Kumoh National Institute of Technology, Gumi 39177, Gyeongbuk, Republic of Korea
| | - Jae-Woo Kim
- ICT Convergence Research Center, Kumoh National Institute of Technology, Gumi 39177, Gyeongbuk, Republic of Korea
| | - Dong-Seong Kim
- Department of IT Convergence Engineering, Kumoh National Institute of Technology, Gumi 39177, Gyeongbuk, Republic of Korea
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13
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Kim JW. Different roles of social participation in socioeconomic disparities in depressive symptoms of Koreans across age groups. J Public Health (Oxf) 2022. [DOI: 10.1007/s10389-021-01556-4] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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14
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Kim JW, Choi JY, Kim MJ, Bin X, Kim SH. A cone-beam computed tomography study on strategic uprighting of mandibular molars using a biocreative reverse curve system. Korean J Orthod 2022; 52:354-361. [PMID: 36148642 PMCID: PMC9512623 DOI: 10.4041/kjod22.140] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/20/2022] [Accepted: 07/21/2022] [Indexed: 11/10/2022] Open
Abstract
Objective To analyze the overall treatment effects in terms of the amount of uprighting with changes in the three-dimensional positions of the mandibular posterior teeth after applying the biocreative reverse curve (BRC) system. Methods Thirty-four patients (mean age, 20.5 ± 8.56 years) were treated using the BRC system (mean period, 8.17 ± 2.19 months). Cone-beam computed tomography was performed before treatment and after treatment with the BRC system. The three-dimensional movement of each tooth was analyzed in the coordinate system at points on the crown and root apex. A paired t-test was used to analyze the treatment effects of the BRC system. Results The application of the BRC system spanning from the first premolar to the second molar resulted not only in buccal and distal uprighting, but also in increased buccal and distal tipping of the teeth. The premolars and the first molar were extruded, and the second molar was intruded. Conclusions When the BRC system is applied, simultaneous distal and buccal uprighting of the premolars and molars can be achieved bilaterally using a temporary skeletal anchorage device without unnecessary movement of the anterior teeth.
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Affiliation(s)
- Jae-Woo Kim
- Department of Orthodontics, Graduate School, Kyung Hee University, Seoul, Korea
| | - Jin-Young Choi
- Department of Orthodontics, Graduate School, Kyung Hee University, Seoul, Korea
| | - Min-Ji Kim
- Department of Orthodontics, Graduate School, Kyung Hee University, Seoul, Korea
| | - Xu Bin
- Department of Orthodontics, Graduate School, Kyung Hee University, Seoul, Korea
| | - Seong-Hun Kim
- Department of Orthodontics, Graduate School, Kyung Hee University, Seoul, Korea
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15
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Frenel JS, Kim JW, Aryal N, Asher R, Berton D, Vidal L, Pautier P, Ledermann JA, Penson RT, Oza AM, Korach J, Huzarski T, Pignata S, Colombo N, Park-Simon TW, Tamura K, Sonke GS, Freimund AE, Lee CK, Pujade-Lauraine E. Efficacy of subsequent chemotherapy for patients with BRCA1/2-mutated recurrent epithelial ovarian cancer progressing on olaparib versus placebo maintenance: post-hoc analyses of the SOLO2/ENGOT Ov-21 trial. Ann Oncol 2022; 33:1021-1028. [PMID: 35772665 DOI: 10.1016/j.annonc.2022.06.011] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [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: 02/13/2022] [Revised: 06/16/2022] [Accepted: 06/20/2022] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND In the SOLO2 trial (ENGOT Ov-21; NCT01874353), maintenance olaparib in patients with platinum-sensitive relapsed ovarian cancer (PSROC) and BRCA mutation significantly improved progression-free survival (PFS) and prolonged overall survival (OS). Following disease progression on olaparib, efficacy of subsequent chemotherapy remains unknown. PATIENTS AND METHODS We conducted a post-hoc hypothesis-generating analysis of SOLO2 data to determine the efficacy of different chemotherapy regimens following RECIST disease progression in patients who received olaparib or placebo. We evaluated time to second progression (TTSP) calculated from the date of RECIST progression to the next progression/death. RESULTS The study population comprised 147 patients who received chemotherapy as their first subsequent treatment after RECIST progression. Of these, 69 (47%) and 78 (53%) were originally randomized to placebo and olaparib arms, respectively. In the placebo-treated cohort, 27/69 and 42/69 received non-platinum and platinum-based chemotherapy, respectively, compared with 24/78 and 54/78, respectively, in the olaparib-treated cohort. Among patients treated with chemotherapy (N = 147), TTSP was significantly longer in the placebo than in the olaparib arm: 12.1 versus 6.9 months [hazard ratio (HR) 2.17, 95% confidence interval (CI) 1.47-3.19]. Similar result was obtained on multivariable analysis adjusting for prognostic factors at RECIST progression (HR 2.13, 95% CI 1.41-3.22). Among patients treated with platinum-based chemotherapy (n = 96), TTSP was significantly longer in the placebo arm: 14.3 versus 7.0 months (HR 2.89, 95% CI 1.73-4.82). Conversely, among patients treated with non-platinum-based chemotherapy (n = 51), the TTSP was comparable in the placebo and olaparib arms: 8.3 versus 6.0 months (HR 1.58, 95% CI 0.86-2.90). CONCLUSIONS Following progression from maintenance olaparib in the recurrent setting, the efficacy of platinum-based subsequent chemotherapy seems to be reduced in BRCA1/2-mutated patients with PSROC compared to patients not previously receiving poly (ADP-ribose) polymerase inhibitors (PARPi). The optimal strategy for patients who relapse after PARPi is an area of ongoing research.
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Affiliation(s)
- J S Frenel
- Institut de Cancerologie de l'Ouest, GINECO, GINEGEPS, Centre René Gauducheau, Saint-Herblain, France.
| | - J W Kim
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - N Aryal
- NHMRC CTC Centre, University of Sydney, Camperdown, Sydney, Australia
| | - R Asher
- NHMRC CTC Centre, University of Sydney, Camperdown, Sydney, Australia
| | - D Berton
- Institut de Cancerologie de l'Ouest, GINECO, GINEGEPS, Centre René Gauducheau, Saint-Herblain, France
| | - L Vidal
- GEICO & H Clínic de Barcelona, Barcelona, Spain
| | - P Pautier
- GINECO & Gustave Roussy Cancer Center, Villejuif, France
| | | | - R T Penson
- Massachusetts General Hospital, Boston, USA
| | - A M Oza
- Princess Margaret Cancer Centre, Toronto, Canada
| | - J Korach
- ISGO & Chaim Sheba Medical Center, Tel Aviv University, Tel Aviv, Israel
| | - T Huzarski
- Department of Genetics and Pathology, Pomeranian Medical University, Szczecin, Poland
| | - S Pignata
- MITO & Department of Urology and Gynecology, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale Napoli, Naples, Italy
| | - N Colombo
- MaNGO & European Institute of Oncology IRCCS and University of Milan-Bicocca, Milano, Italy
| | - T W Park-Simon
- AGO & Medical School, Department of Gynecologic Oncology, Hannover, Hannover, Germany
| | - K Tamura
- Department of Breast and Medical Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - G S Sonke
- DGOG & Netherlands Cancer Institute, Amsterdam, Netherlands
| | - A E Freimund
- Peter MacCallum Cancer Centre, Melbourne, Australia
| | - C K Lee
- NHMRC CTC Centre, University of Sydney, Camperdown, Sydney, Australia
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16
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Nogueira E, Tirpák F, Hamilton LE, Zigo M, Kerns K, Sutovsky M, Kim J, Volkmann D, Jovine L, Taylor JF, Schnabel RD, Sutovsky P. A Non-Synonymous Point Mutation in a WD-40 Domain Repeat of EML5 Leads to Decreased Bovine Sperm Quality and Fertility. Front Cell Dev Biol 2022; 10:872740. [PMID: 35478957 PMCID: PMC9037033 DOI: 10.3389/fcell.2022.872740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 03/18/2022] [Indexed: 11/17/2022] Open
Abstract
This study is part of a concerted effort to identify and phenotype rare, deleterious mutations that adversely affect sperm quality, or convey high developmental and fertility potential to embryos and ensuing progeny. A rare, homozygous mutation in EML5 (EML5R1654W), which encodes a microtubule-associated protein with high expression in testis and brain was identified in an Angus bull used extensively in artificial insemination (AI) for its outstanding progeny production traits. The bull’s fertility was low in cross-breeding timed AI (TAI) (Pregnancy/TAI = 25.2%; n = 222) and, in general, AI breeding to Nellore cows (41%; n = 822). A search of the 1,000 Bull Genomes Run9 database revealed an additional 74 heterozygous animals and 8 homozygous animals harboring this exact mutation across several different breeds (0.7% frequency within the 6,191 sequenced animals). Phenotypically, spermatozoa from the homozygous Angus bull displayed prominent piriform and tapered heads, and outwardly protruding knobbed acrosomes. Additionally, an increased retention of EML5 was also observed in the sperm head of both homozygous and heterozygous Angus bulls compared to wild-type animals. This non-synonymous point mutation is located within a WD40 signaling domain repeat of EML5 and is predicted to be detrimental to overall protein function by genomic single nucleotide polymorphism (SNP) analysis and protein modeling. Future work will examine how this rare mutation affects field AI fertility and will characterize the role of EML5 in spermatogenesis.
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Affiliation(s)
- Eriklis Nogueira
- Division of Animal Sciences, University of Missouri, Columbia, MO, United States.,Embrapa Pantanal, Corumbá, Brazil.,Programa de Pós-Graduação em Ciências Veterinárias, Universidade Federal de Mato Grosso do Sul, Campo Grande, Brazil
| | - Filip Tirpák
- Division of Animal Sciences, University of Missouri, Columbia, MO, United States.,AgroBioTech Research Centre, Slovak University of Agriculture, Nitra, Slovakia
| | - Lauren E Hamilton
- Division of Animal Sciences, University of Missouri, Columbia, MO, United States
| | - Michal Zigo
- Division of Animal Sciences, University of Missouri, Columbia, MO, United States
| | - Karl Kerns
- Division of Animal Sciences, University of Missouri, Columbia, MO, United States.,Department of Animal Science, Iowa State University, Ames, IA, United States
| | - Miriam Sutovsky
- Division of Animal Sciences, University of Missouri, Columbia, MO, United States
| | - JaeWoo Kim
- Division of Animal Sciences, University of Missouri, Columbia, MO, United States
| | - Dietrich Volkmann
- Theriogenology Laboratory, School of Veterinary Medicine, University of Missouri, Columbia, MO, United States
| | - Luca Jovine
- Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Sweden
| | - Jeremy F Taylor
- Division of Animal Sciences, University of Missouri, Columbia, MO, United States.,Genetics Area Program, University of Missouri, Columbia, MO, United States
| | - Robert D Schnabel
- Division of Animal Sciences, University of Missouri, Columbia, MO, United States.,Genetics Area Program, University of Missouri, Columbia, MO, United States.,Institute for Data Science and Informatics, University of Missouri, Columbia, MO, United States
| | - Peter Sutovsky
- Division of Animal Sciences, University of Missouri, Columbia, MO, United States.,Department of Obstetrics, Gynecology and Women's Health, University of Missouri, Columbia, MO, United States
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17
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Kim JW, Vella C, Parvez W, Verma R, Majid M, Woltmann G, Pareek M, Bennett J, Agrawal S, Sudhir R, Ahyow L, Tufail M, Haldar P. Impact of COVID-19 on the diagnosis and management of lung cancer and TB. Int J Tuberc Lung Dis 2022; 26:372-374. [PMID: 35351244 DOI: 10.5588/ijtld.22.0045] [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: 11/10/2022] Open
Affiliation(s)
- J W Kim
- Department of Respiratory Sciences, University of Leicester, Leicester, Department of Respiratory Medicine, University Hospitals of Leicester NHS Trust, Leicester
| | - C Vella
- Department of Respiratory Medicine, University Hospitals of Leicester NHS Trust, Leicester
| | - W Parvez
- Department of Respiratory Medicine, University Hospitals of Leicester NHS Trust, Leicester
| | - R Verma
- Department of Respiratory Sciences, University of Leicester, Leicester, Department of Respiratory Medicine, University Hospitals of Leicester NHS Trust, Leicester
| | - M Majid
- Department of Respiratory Medicine, University Hospitals of Leicester NHS Trust, Leicester
| | - G Woltmann
- Department of Respiratory Sciences, University of Leicester, Leicester, Department of Respiratory Medicine, University Hospitals of Leicester NHS Trust, Leicester
| | - M Pareek
- Department of Respiratory Sciences, University of Leicester, Leicester
| | - J Bennett
- Department of Respiratory Medicine, University Hospitals of Leicester NHS Trust, Leicester
| | - S Agrawal
- Department of Respiratory Medicine, University Hospitals of Leicester NHS Trust, Leicester
| | - R Sudhir
- Department of Respiratory Medicine, University Hospitals of Leicester NHS Trust, Leicester
| | - L Ahyow
- UK Health Security Agency, London, UK
| | - M Tufail
- Department of Respiratory Medicine, University Hospitals of Leicester NHS Trust, Leicester
| | - P Haldar
- Department of Respiratory Sciences, University of Leicester, Leicester, Department of Respiratory Medicine, University Hospitals of Leicester NHS Trust, Leicester
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18
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Kim JW, Woo SB, Song JI, Kwon HK. An observational study of hydrodynamic impact on water mass transport due to tidal power generation. Sci Total Environ 2022; 807:151013. [PMID: 34662618 DOI: 10.1016/j.scitotenv.2021.151013] [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: 07/15/2021] [Revised: 10/08/2021] [Accepted: 10/11/2021] [Indexed: 06/13/2023]
Abstract
The world's largest Sihwa Tidal Power Plant (TPP), located on the west coast of Korea, was built in 2011 for the purpose of improving water quality and producing renewable energy. After several years of actual operation, most of the original purpose was achieved, but unexpected coastal environmental changes such as tidal flat damage and sediment accumulation also occurred. In this study, in order to understand the causes of these environmental changes, field observations were conducted near TPP, and spatial and temporal variability of flow structure and water exchange process were investigated. Three-dimensional velocity data were collected along the closed line surrounding the outside of the TPP for 11 h during spring tide and analyzed according to two discharge phases: power generation phase (PGP) and drainage phase (DP). The results show that the depth-averaged maximum current velocity was more than three times greater at DP than at PGP. Jet-like flow during DP caused very high horizontal shear, whereas vertical shear was relatively weak, indicating that the horizontal and vertical flow structures were very different. The most notable result is that the mass transport patterns between PGP and DP are significantly different, i.e., during PGP, mass transport is dominated on the left side of the TPP, whereas during DP, it occurs at the front of the TPP. This means that there is a strong spatiotemporal asymmetry between the inflow from the downstream (outside of the TPP) during PGP and the outflow from the upstream (inside of the TPP) during DP. These asymmetric processes can have a significant impact on the material exchange and sediment transport near the TPP. Since observational studies on TPP are extremely rare, this study is expected to contribute to future TPP related research, such as numerical modeling.
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Affiliation(s)
- J W Kim
- Department of Ocean Sciences, Inha University, Incheon 22212, Republic of Korea
| | - S-B Woo
- Department of Ocean Sciences, Inha University, Incheon 22212, Republic of Korea.
| | - J I Song
- Department of Ocean Sciences, Inha University, Incheon 22212, Republic of Korea
| | - H-K Kwon
- Korea Water Resources Corporation, Ansan 15637, Republic of Korea
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Park Y, Jung W, Yang E, Nam KY, Bong WR, Kim J, Kim KY, Lee S, Cho JY, Hong JH, Kim J. Evaluation of food effects on the pharmacokinetics of Pelargonium sidoides and Coptis with each bioactive compound berberine and epicatechin after a single oral dose of an expectorant and antitussive agent UI026 in healthy subjects. Transl Clin Pharmacol 2022; 30:49-56. [PMID: 35419311 PMCID: PMC8979756 DOI: 10.12793/tcp.2022.30.e3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Revised: 02/21/2022] [Accepted: 02/25/2022] [Indexed: 11/19/2022] Open
Abstract
UI026 is an expectorant and antitussive agent which is a new combination of Pelargonium sidoides extract and Coptis extract. The bioactive compounds of Pelargonium sidoides and Coptis extracts were identified as epicatechin and berberine, respectively. This study evaluated the effect of food on the pharmacokinetics (PKs) and safety of UI026. A randomized, open-label, single-dose, 2-treatment, parallel study in 12 healthy male subjects was performed. Subjects received a single oral dose of UI026 (27 mL of syrup) under a fed or fasted condition according to their randomly assigned treatment. Blood samples for the PK analysis were obtained up to 24 hours post-dose for berberine and 12 hours post-dose for epicatechin. The PK parameters were calculated by non-compartmental analysis. In the fed condition, the mean maximum plasma concentration (Cmax) and mean area under the plasma concentration-time curve from time zero to the last observed time point (AUClast) for berberine were approximately 33% and 67% lower, respectively, compared with the fasted condition, both showing statistically significant difference. For epicatechin, the mean Cmax and mean AUClast were about 29% and 45% lower, respectively, compared to the fasting condition, neither of which showed a statistically significant difference. There were no drug-related adverse events. This finding suggests that food affects the systemic exposure and bioavailability of berberine and epicatechin.
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Affiliation(s)
- Yewon Park
- Department of Clinical Pharmacology and Therapeutics, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Korea
| | - WonTae Jung
- Global R&D, Korea United Pharm., Inc., Seoul 06116, Korea
| | - Eunsol Yang
- Department of Clinical Pharmacology and Therapeutics, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Kyu-Yeol Nam
- Global R&D, Korea United Pharm., Inc., Seoul 06116, Korea
| | - Woo-Ri Bong
- Global R&D, Korea United Pharm., Inc., Seoul 06116, Korea
| | | | | | - SeungHwan Lee
- Department of Clinical Pharmacology and Therapeutics, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Joo-Youn Cho
- Department of Clinical Pharmacology and Therapeutics, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Jang-Hee Hong
- Chungnam National University Hospital, Chungnam National University College of Medicine, Daejeon 35015, Korea
| | - JaeWoo Kim
- H Plus Yangji Hospital, Seoul 08779, Korea
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Abstract
OBJECTIVES The present study aimed to investigate the incidence of and risk factors for postoperative pneumonia and aspiration pneumonia after hip fracture surgery. DESIGN Retrospective cohort study from 2005 to 2021. SETTING Asan Medical Center in Seoul, Republic of Korea. PARTICIPANTS A total 1,208 patients aged ≥ 65 years who underwent hip fracture surgery. MEASUREMENTS Postoperative pneumonia was defined as cases with new infiltration on chest x-ray or chest computed tomography (CT) after surgery or confirmed by a pulmonologist's consultation and diagnosis. Aspiration pneumonia was defined as: 1) radiologic findings of hospital-acquired pneumonia on chest radiographs or CT, medical record of aspiration pneumonia confirmed by a pulmonologist's consultation, and history of vomiting or aspiration, or 2) gravity-dependent opacity on chest CT when the history of vomiting or aspiration is ambiguous. Patient demographics, past medical history, pre-injury Koval score, Charlson Comorbidity Index (CCI), blood test results, length of hospital stay, and in-hospital mortality were evaluated. A comparison analysis and binary logistic regression were performed to identify the incidence and risk factors for postoperative pneumonia and aspiration pneumonia. RESULTS Postoperative pneumonia was diagnosed in 47 patients (3.9%), including 20 with aspiration pneumonia (1.7%). In the multivariate analysis, postoperative delirium (odds ratio [OR], 3.42; P < 0.001), American Society of Anesthesiologists (ASA) scores ≥ 3 (OR, 2.11; P = 0.021), and CCI (OR, 1.21; P = 0.013) were significant risk factors for postoperative pneumonia. Male sex (OR, 3.01; P = 0.017), postoperative delirium (OR, 3.16; P = 0.014), and preoperative serum albumin levels < 3.5 g/dL (OR, 7.00; P = 0.010) were significant risk factors for aspiration pneumonia. CONCLUSION ASA classification ≥ 3, higher CCI, and postoperative delirium were the risk factors for postoperative pneumonia. Male sex, postoperative delirium, and lower preoperative serum albumin level were the risk factors for aspiration pneumonia. Thus, physicians should pay attention to patients with the risk factors.
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Affiliation(s)
- J Ahn
- Ji Wan Kim, Department of Orthopedic Surgery, University of Ulsan, College of Medicine, Asan Medical Center, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Republic of Korea, Phone: +82-2-3010-3530, Fax: +82-2-2045-4542, Email address: , ORCID: 0000-0002-3524-8706
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21
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Kim HC, Yoon DY, Lee S, Jang IJ, Hong JH, Kim J. Comparative pharmacokinetics between two tablets of tramadol 37.5 mg/acetaminophen 325 mg and one tablet of tramadol 75 mg/acetaminophen 650 mg for extended-release fixed-dose combination. Transl Clin Pharmacol 2022; 30:112-119. [PMID: 35800670 PMCID: PMC9253448 DOI: 10.12793/tcp.2022.30.e12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 06/22/2022] [Accepted: 06/22/2022] [Indexed: 11/19/2022] Open
Abstract
An extended-release (ER) fixed-dose combination (FDC) of tramadol 37.5 mg/acetaminophen 325 mg was developed due to the demand for varying dosages. This study aimed to evaluate the pharmacokinetics (PKs) for two tablets of the new developed tramadol 37.5 mg/acetaminophen 325 mg ER FDC (DW-0920, Wontran Semi ER®) as test formulation compared to one tablet of the tramadol 75 mg/acetaminophen 650 mg ER FDC (DW-0919, Wontran ER®) as reference formulation. A randomized, open-label, 2-way crossover study was conducted in 30 healthy subjects. Subjects were orally administered one of 2 formulations followed by an alternate formulation with a 7-day washout period. Blood samples were collected up to 36 hours post-dose. Plasma concentrations of tramadol and acetaminophen were determined using a validated high-performance liquid chromatography with tandem mass spectrometric method. The geometric mean ratios (GMRs) and their 90% confidence intervals (90% CIs) of test formulation to reference formulation were calculated for the maximum plasma concentration (Cmax) and the area under the plasma concentration-time curve from zero to the last measurable time point (AUClast). The PK profiles of 2 formulations were comparable. The GMRs (90% CI) of Cmax and AUClast for tramadol were 1.086 (1.047–1.127) and 1.008 (0.975–1.042), respectively. The corresponding values for acetaminophen were 0.956 (0.897–1.019) and 0.986 (0.961–1.011), respectively. All the values were within the bioequivalence range of 0.80–1.25. Two tablets of DW-0920 were comparable to one tablet of DW-0919. The DW-0920 may be used for optimal pharmacotherapy for pain control with a lower dose.
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Affiliation(s)
- Hyun Chul Kim
- Department of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine and Hospital, Seoul 03080, Korea
| | - Deok Yong Yoon
- Department of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine and Hospital, Seoul 03080, Korea
| | - SeungHwan Lee
- Department of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine and Hospital, Seoul 03080, Korea
| | - In-Jin Jang
- Department of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine and Hospital, Seoul 03080, Korea
| | - Jang Hee Hong
- Clinial Trials Center, Chungnam National University Hospital, Daejeon 35015, Korea
- Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon 34134, Korea
| | - JaeWoo Kim
- H Plus Yangji Hospital, Seoul 08779, Korea
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22
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Jeong SY, Hwang KT, Oh CW, Kim JW, Sohn OJ, Kim JW, Cho YH, Park KC. Infographic: Mid-term outcomes after the surgical treatment of atypical femoral fractures : minimum three-year follow-up. Bone Joint J 2021; 103-B:1646-1647. [PMID: 34719273 DOI: 10.1302/0301-620x.103b11.bjj-2021-1428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- S-Y Jeong
- Department of Orthopaedic Surgery, Hanyang University Guri Hospital, Guri, South Korea
| | - K-T Hwang
- Hanyang University College of Medicine, Seoul, South Korea
| | - C-W Oh
- Department of Orthopedic Surgery, Kyungpook National University Hospital, Daegu, South Korea
| | - J-W Kim
- Department of Orthopedic Surgery, Kyungpook National University Hospital, Daegu, South Korea
| | - O J Sohn
- Yeungnam University, Gyeongsan, South Korea
| | - J W Kim
- Department of Orthopaedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Y-H Cho
- Daegu Fatima Hospital, Daegu, South Korea
| | - K C Park
- Department of Orthopaedic Surgery, Hanyang University Guri Hospital, Guri, South Korea
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23
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Kim MJ, Kim JW, Kim MS, Choi SY, Na JI. Generalized erythema multiforme-like skin rash following the first dose of COVID-19 vaccine (Pfizer-BioNTech). J Eur Acad Dermatol Venereol 2021; 36:e98-e100. [PMID: 34661942 PMCID: PMC8656619 DOI: 10.1111/jdv.17757] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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: 09/04/2021] [Accepted: 10/13/2021] [Indexed: 12/18/2022]
Affiliation(s)
- M J Kim
- Department of Dermatology, Seoul National University Bundang Hospital, 82 Gumi-ro 173 Beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, 13620, Korea
| | - J W Kim
- Department of Dermatology, Seoul National University Bundang Hospital, 82 Gumi-ro 173 Beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, 13620, Korea
| | - M S Kim
- Department of Dermatology, Seoul National University Bundang Hospital, 82 Gumi-ro 173 Beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, 13620, Korea
| | - S Y Choi
- Department of Dermatology, Ilsan Paik Hospital, Inje University, 170, Juhwa-ro, Ilsanseo-gu, Goyang-si, Gyeonggi-do, Korea
| | - J I Na
- Department of Dermatology, Seoul National University Bundang Hospital, 82 Gumi-ro 173 Beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, 13620, Korea
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Yang BR, Cha SH, Lee KE, Kim JW, Lee J, Shin KH. Effect of dipeptidyl peptidase IV inhibitors, thiazolidinedione, and sulfonylurea on osteoporosis in patients with type 2 diabetes: population-based cohort study. Osteoporos Int 2021; 32:1705-1712. [PMID: 33594487 DOI: 10.1007/s00198-020-05801-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 06/11/2020] [Accepted: 12/15/2020] [Indexed: 12/01/2022]
Abstract
UNLABELLED The population-based cohort study used the Korean National Health Insurance claims database to evaluate the effect of anti-diabetic drugs on osteoporosis. The use of DPP-IV inhibitors does not increase the risk of osteoporosis compared with the use of sulfonylureas in patients with type 2 diabetes mellitus, while a weak association was found between thiazolidinediones and increased risk of osteoporosis. PURPOSE The current study aimed to evaluate the effect of dipeptidyl peptidase IV inhibitors (DPP-IVi), thiazolidinedione (TZD), and sulfonylurea (SU) on osteoporosis in patients with type 2 diabetes. METHODS A population-based cohort study was conducted in the Republic of Korea using the Korean National Health Insurance claims database. Data from 2012 to 2017 for patients of 50-99 years of age who were prescribed DPP-IVi, TZD, or SU during 2013-2015 were extracted from the database. Based on pre-defined criteria, a total of 381,404 patients were analyzed after inverse probability of treatment weighting. The association between the study drugs and osteoporosis was estimated using Cox proportional hazards models. Data of 220,166 patients who were prescribed DPP-IVi, 18,630 who were prescribed TZD, and 142,608 patients who were prescribed SU were set. RESULTS In the multivariate-adjusted analysis, the hazard ratio (HR) of osteoporosis in the DPP-IVi group was not significantly different from that of the SU group (HR: 0.97; 95% confidence interval (CI) 0.94-1.00), whereas the HR of osteoporosis in the TZD group was higher (HR: 1.13; 95% CI 1.06-1.20). In the subgroup analysis, the HRs of osteoporosis were higher with pioglitazone (HR: 1.14; 95% CI 1.06-1.23) in the TZD group and with glibenclamides (HR: 1.39; 95% CI 1.09-1.77) in the SU group, whereas drugs with lower HR in the DPP-IVi group were saxagliptin (HR: 0.93; 95% CI 0.87-0.99) and sitagliptin (HR: 0.93; 95% CI 0.89-0.97). CONCLUSION DPP-IV inhibitors do not increase the risk of osteoporosis compared with sulfonylureas in patients with type 2 diabetes mellitus, while a weak association was found between thiazolidinediones and increased risk of osteoporosis.
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Affiliation(s)
- B R Yang
- College of Pharmacy, Chungnam National University, Daejeon, Republic of Korea
| | - S H Cha
- Department of Statistics, College of Natural Sciences, Kyungpook National University, Daegu, Republic of Korea
| | - K E Lee
- Department of Statistics, College of Natural Sciences, Kyungpook National University, Daegu, Republic of Korea
| | - J W Kim
- Department of Family Medicine, Daegu Health College Hospital, Daegu, Republic of Korea
| | - J Lee
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, Republic of Korea
| | - K-H Shin
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, Republic of Korea.
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25
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Yang JH, Cho SI, Kim DH, Yoon JY, Moon J, Kim JW, Choi S, Suh DH. Pilot study of fractional microneedling radiofrequency for hidradenitis suppurativa assessed by clinical response and histology. Clin Exp Dermatol 2021; 47:335-342. [PMID: 34431555 DOI: 10.1111/ced.14905] [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] [Accepted: 08/19/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Hidradenitis suppurativa (HS) is a devastating chronic inflammatory skin disease with frequent recurrences. Various systemic treatments and procedures have been used but the efficacy of fractional microneedling radiofrequency (FMR) has not been reported. AIM To evaluate the clinical and histological efficacy of FMR in the treatment of HS lesions. METHODS An 8-week, prospective, split-body, unblinded study was conducted, which enrolled 10 adult patients with mild to moderate HS to receive 3 sessions of FMR treatment biweekly. HS severity was assessed using the number and type of lesions, HS Physician Global Assessment (HS-PGA) and the modified Sartorius score (mSS). Skin biopsies were performed on participants to assess change in inflammation before and after FMR. RESULTS Severity of HS was significantly reduced on the FMR-treated side of the body, but not on the control side. Inflammatory HS lesions were significantly reduced after 4 weeks, while HS-PGA and mSS were significantly decreased after 6 weeks. Immunohistochemistry staining showed decreased expression of inflammatory markers including neutrophil elastases, interleukin (IL)-8 and IL-17, tumour necrosis factor-α, transforming growth factor-β1 and matrix metalloproteinases. CONCLUSION FMR may be a viable treatment option for mild to moderate HS.
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Affiliation(s)
- J H Yang
- Department of Dermatology, Seoul National University College of Medicine, Seoul, South Korea.,Acne, Rosacea, Seborrheic Dermatitis and Hidradenitis Suppurativa Research Laboratory, Seoul National University Hospital, Seoul, South Korea
| | - S I Cho
- Department of Dermatology, Seoul National University College of Medicine, Seoul, South Korea
| | - D H Kim
- Department of Dermatology, Seoul National University College of Medicine, Seoul, South Korea
| | - J Y Yoon
- Acne, Rosacea, Seborrheic Dermatitis and Hidradenitis Suppurativa Research Laboratory, Seoul National University Hospital, Seoul, South Korea
| | - J Moon
- Reone Skin Clinic, Seoul, South Korea
| | - J W Kim
- Department of Dermatology, Seoul National University College of Medicine, Seoul, South Korea
| | - S Choi
- Department of Dermatology, Seoul National University College of Medicine, Seoul, South Korea
| | - D H Suh
- Department of Dermatology, Seoul National University College of Medicine, Seoul, South Korea.,Acne, Rosacea, Seborrheic Dermatitis and Hidradenitis Suppurativa Research Laboratory, Seoul National University Hospital, Seoul, South Korea
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26
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Jung IJ, Choi EJ, Lee BG, Kim JW. Population-based, three-dimensional analysis of age- and sex-related femur shaft geometry differences. Osteoporos Int 2021; 32:1631-1638. [PMID: 33501569 DOI: 10.1007/s00198-021-05841-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 06/29/2020] [Accepted: 01/11/2021] [Indexed: 10/22/2022]
Abstract
UNLABELLED This study deals with differences of femoral geometric focus on the bowing and width. Analysis using three-dimensional skeletonization showed increase of femoral bowing and femur width over life (more in women), and widening of the medullary canal only in women after 50 years old, not in men. INTRODUCTION The changes in femur geometry that occur with aging and lead to fragility or insufficiency fracture remain unclear. The role of the lower limb geometry, including the femur and femoral bowing, has become a point of discussion, especially in atypical femur fracture. This study aimed to analyze femur shaft geometry using three-dimensional skeletonization. METHODS We acquired computed tomography images of both femurs obtained. A total of 1400 age- and sex-stratified participants were enrolled and were divided into subgroups according to age (by decade) and sex. The computed tomography images were used to produce 3-dimensional samplings of anatomical elements of the human femur using reconstruction and parametrization from these datasets. The process of skeletonization was conducted to obtain compact representation of the femur. With the skeletonization, we were able to compare all parameters according to age and sex. RESULTS The femur length was 424.4 ± 28.6 mm and was longer in men (P < 0.001). The minimum diameter of the medullary canal was 8.9 ± 2.0 mm. The radius of curvature (ROC) was 906.9 ± 193.3 mm. Men had a larger femur length, femur outer diameter, and the narrowest medullary diameter (P < 0.001, respectively). Women had significantly smaller ROC (P < 0.001). ROC decreased by 19.4% in men and 23.6% in women between the ages of 20 to 89 years. Femur width increased over life by 11.4% in men and 24.5% in women. Between the ages of 50 and 89 years, the medullary canal appears to have increased by 32.7% in women. CONCLUSION This geometry analysis demonstrated that femoral bowing and femoral width increased related to aging, and that the medullary canal widened after the age of 50 years in women. This cross-sectional study revealed important age- and sex-related differences in femur shaft geometry that occur with aging.
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Affiliation(s)
- I J Jung
- University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - E J Choi
- Department of Orthopaedics, Asan Medical Center, Seoul, Republic of Korea
| | - B G Lee
- Division of Computer Engineering, Dongseo University, Busan, Republic of Korea
| | - J W Kim
- Department of Orthopaedics, Asan Medical Center, Seoul, Republic of Korea.
- Department of Orthopedic Surgery, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea.
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Kim HJ, Cho H, Park M, Kim JW, Ahn SJ, Lyoo CH, Suh SH, Ryu YH. MRI-Visible Perivascular Spaces in the Centrum Semiovale Are Associated with Brain Amyloid Deposition in Patients with Alzheimer Disease-Related Cognitive Impairment. AJNR Am J Neuroradiol 2021; 42:1231-1238. [PMID: 33985952 DOI: 10.3174/ajnr.a7155] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 01/21/2021] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE The association of perivascular spaces in the centrum semiovale with amyloid accumulation among patients with Alzheimer disease-related cognitive impairment is unknown. We evaluated this association in patients with Alzheimer disease-related cognitive impairment and β-amyloid deposition, assessed with [18F] florbetaben PET/CT. MATERIALS AND METHODS MR imaging and [18F] florbetaben PET/CT images of 144 patients with Alzheimer disease-related cognitive impairment were retrospectively evaluated. MR imaging-visible perivascular spaces were rated on a 4-point visual scale: a score of ≥3 or <3 indicated a high or low degree of MR imaging-visible perivascular spaces, respectively. Amyloid deposition was evaluated using the brain β-amyloid plaque load scoring system. RESULTS Compared with patients negative for β-amyloid, those positive for it were older and more likely to have lower cognitive function, a diagnosis of Alzheimer disease, white matter hyperintensity, the Apolipoprotein E ε4 allele, and a high degree of MR imaging-visible perivascular spaces in the centrum semiovale. Multivariable analysis, adjusted for age and Apolipoprotein E status, revealed that a high degree of MR imaging-visible perivascular spaces in the centrum semiovale was independently associated with β-amyloid positivity (odds ratio, 2.307; 95% CI, 1.036-5.136; P = .041). CONCLUSIONS A high degree of MR imaging-visible perivascular spaces in the centrum semiovale independently predicted β-amyloid positivity in patients with Alzheimer disease-related cognitive impairment. Thus, MR imaging-visible perivascular spaces in the centrum semiovale are associated with amyloid pathology of the brain and could be an indirect imaging marker of amyloid burden in patients with Alzheimer disease-related cognitive impairment.
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Affiliation(s)
- H J Kim
- From the Department of Nuclear Medicine (H.J.K., Y.H.R.)
- Department of Nuclear Medicine (H.J.K.), Yongin Severance Hospital, Yonsei University College of Medicine, Yongin-si, South Korea
| | | | - M Park
- Radiology (M.P., J.W.K., S.J.A., S.H.S.), Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - J W Kim
- Radiology (M.P., J.W.K., S.J.A., S.H.S.), Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - S J Ahn
- Radiology (M.P., J.W.K., S.J.A., S.H.S.), Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | | | - S H Suh
- Radiology (M.P., J.W.K., S.J.A., S.H.S.), Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Y H Ryu
- From the Department of Nuclear Medicine (H.J.K., Y.H.R.)
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28
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Go E, Kim JW, Lee JW, Ahn Y, Jeong JW, Kang JT, Park S, Yun KN, Kim SJ, Kim S, Yeon JH, Song YH. Enhanced interfacial reaction of silicon carbide fillers onto the metal substrate in carbon nanotube paste for reliable field electron emitters. Nanotechnology 2021; 32:190001. [PMID: 33524956 DOI: 10.1088/1361-6528/abe1ef] [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] [Indexed: 06/12/2023]
Abstract
Adhesion of carbon nanotube (CNT) onto a cathode substrate is very crucial for field electron emitters that are operating under high electric fields. As a supporting precursor of CNT field emitters, we adopted silicon carbide (SiC) nano-particle fillers with Ni particles and then enhanced interfacial reactions onto Kovar-alloy substrates through the optimized wet pulverization process of SiC aggregates for reliable field electron emitters. As-purchased SiC aggregates were efficiently pulverized from 20 to less than 1 micro-meter in a median value (D50). CNT pastes for field emitters were distinctively formulated by a mixing process of the pulverized SiC aggregates and pre-dispersed CNTs. X-ray photoelectron spectroscopy studies showed that the optimally pulverized SiC-CNT paste-emitter had a stronger Si 2p3/2 signal in the Ni2Si phase than the as-purchased one. The Si 2p3/2 signal would represent interfacial reaction of the SiC nano-particle onto Ni from the CNT paste and the Kovar substrate, forming the supporting layer for CNT emitters. The optimal paste-emitter even in a vacuum-sealed tube exhibited a highly reliable field emission current with a high current density of 100 mA cm-2 for over 50 h along with good reproducibility. The enhanced interfacial reaction of SiC filler onto the metal substrates could lead to highly reliable field electron emitters for vacuum electronic devices.
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Affiliation(s)
- Eunsol Go
- ETRI ICT School (Advanced Devices Engineering), University of Science and Technology, 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
- Emerging Devices Research section, Electronics and Telecommunications Research Institute (ETRI), 218 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea
| | - Jae-Woo Kim
- Emerging Devices Research section, Electronics and Telecommunications Research Institute (ETRI), 218 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea
| | - Jeong-Woong Lee
- ETRI ICT School (Advanced Devices Engineering), University of Science and Technology, 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
- Emerging Devices Research section, Electronics and Telecommunications Research Institute (ETRI), 218 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea
| | - Yujung Ahn
- ETRI ICT School (Advanced Devices Engineering), University of Science and Technology, 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
- Emerging Devices Research section, Electronics and Telecommunications Research Institute (ETRI), 218 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea
| | - Jin-Woo Jeong
- Emerging Devices Research section, Electronics and Telecommunications Research Institute (ETRI), 218 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea
| | - Jun-Tae Kang
- Emerging Devices Research section, Electronics and Telecommunications Research Institute (ETRI), 218 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea
| | - Sora Park
- Emerging Devices Research section, Electronics and Telecommunications Research Institute (ETRI), 218 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea
| | - Ki Nam Yun
- Emerging Devices Research section, Electronics and Telecommunications Research Institute (ETRI), 218 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea
| | - Seong Jun Kim
- Emerging Devices Research section, Electronics and Telecommunications Research Institute (ETRI), 218 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea
| | - Sunghee Kim
- Emerging Devices Research section, Electronics and Telecommunications Research Institute (ETRI), 218 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea
| | - Ji-Hwan Yeon
- Emerging Devices Research section, Electronics and Telecommunications Research Institute (ETRI), 218 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea
| | - Yoon-Ho Song
- ETRI ICT School (Advanced Devices Engineering), University of Science and Technology, 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
- Emerging Devices Research section, Electronics and Telecommunications Research Institute (ETRI), 218 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea
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Han S, Cho YS, Yoon SK, Lim KS, Cho SH, Kim J, Choe S, Jung J, Ghim JL, Choi S, Lee M, Kim SM, Kim HT, Lim HS, Yoon Shim J, Bae KS. First-in-Human, Double-Blind, Randomized Controlled Trial of an Oral Dose of GnRH Antagonist TU2670 in Healthy Women. J Clin Endocrinol Metab 2021; 106:e1111-e1120. [PMID: 33347565 DOI: 10.1210/clinem/dgaa939] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 06/04/2020] [Indexed: 11/19/2022]
Abstract
OBJECTIVE To evaluate the safety, tolerability, pharmacokinetics, and pharmacodynamics of TU2670, a novel orally active, nonpeptide gonadotropin-releasing hormone (GnRH) antagonist administered to healthy female participants. METHODS This was a first-in-human, multicenter, phase 1, randomized, double-blind, placebo-controlled, single-dose ascending trial that took place in multiple medical centers. A total of 16 healthy premenopausal women (23 to 45 years of age) were randomized and received 20, 40, 80, and 160 mg TU2670 (GnRH antagonist) or placebo 7 days (±1 day) after the onset of menstrual bleeding. We performed a noncompartmental analysis for pharmacokinetic parameters and calculated relative minimum concentration values (Cmin, % Baseline) of serum pharmacodynamic (PD) markers (luteinizing hormone [LH], follicle-stimulating hormone [FSH], and estradiol). RESULTS There were no significant differences among treatments with respect to vital signs, electrocardiography, adverse events, ovulation test results, and ultrasonography. The median Tmax of TU2670 occurred 0.75 to 1.00 hours after dosing, and concentrations then declined, with a mean apparent half-life (t1/2) of 3.0 to 5.9 hours. AUClast (17.7-417.9 ng·h/mL) and Cmax (8.1-95.4 ng/mL) increased in a dose-dependent manner. The PD analysis after a single administration of TU2670 revealed dose-dependent suppression of LH, FSH, and estradiol. Maximal suppression of the pre-dose baseline (%) was 58% to 82% at 6 to 8 hours for LH, 28% to 39% at 6 to 12 hours for FSH, and 34% to 82% at 12 to 24 hours for estradiol. CONCLUSION The single administration of TU2670 in healthy premenopausal women was well tolerated and resulted in the dose-dependent suppression of LH, FSH, and estradiol, suggesting rapid and significant inhibition of pituitary and ovarian hormones.
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Affiliation(s)
- Sungpil Han
- Department of Clinical Pharmacology and Therapeutics, Asan Medical Center, University of Ulsan, Seoul, Republic of Korea
| | - Yong-Soon Cho
- Department of Clinical Pharmacology and Therapeutics, Asan Medical Center, University of Ulsan, Seoul, Republic of Korea
| | - Seok-Kyu Yoon
- Department of Clinical Pharmacology and Therapeutics, Asan Medical Center, University of Ulsan, Seoul, Republic of Korea
| | - Kyoung Soo Lim
- Department of Clinical Pharmacology and Therapeutics, CHA University School of Medicine and CHA Bundang Medical Center, Seongnam, Republic of Korea
| | - Sang-Heon Cho
- Department of Clinical Pharmacology, Inha University Hospital, Inha University School of Medicine, Incheon, Republic of Korea
| | - JaeWoo Kim
- Clinical Trials Center, Chungnam National University Hospital, Daejeon, Republic of Korea
| | - Sangmin Choe
- Department of Clinical Pharmacology and Therapeutics, Pusan National University Hospital, Busan, Republic of Korea
| | - Jinah Jung
- Department of Clinical Pharmacology and Therapeutics, Inje University Busan Paik Hospital, Busan, Republic of Korea
| | - Jong-Lyul Ghim
- Department of Clinical Pharmacology and Toxicology, Anam Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | | | | | | | | | - Hyeong-Seok Lim
- Department of Clinical Pharmacology and Therapeutics, Asan Medical Center, University of Ulsan, Seoul, Republic of Korea
| | - Jae Yoon Shim
- Department of Obstetrics and Gynecology, Asan Medical Center, University of Ulsan, Seoul, Republic of Korea
| | - Kyun-Seop Bae
- Department of Clinical Pharmacology and Therapeutics, Asan Medical Center, University of Ulsan, Seoul, Republic of Korea
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Park HS, Kang B, Chon HJ, Im HS, Lee CK, Kim I, Kang MJ, Hwang JE, Bae WK, Cheon J, Park JO, Hong JY, Kang JH, Kim JH, Lim SH, Kim JW, Kim JW, Yoo C, Choi HJ. Liposomal irinotecan plus fluorouracil/leucovorin versus FOLFIRINOX as the second-line chemotherapy for patients with metastatic pancreatic cancer: a multicenter retrospective study of the Korean Cancer Study Group (KCSG). ESMO Open 2021; 6:100049. [PMID: 33578192 PMCID: PMC7878976 DOI: 10.1016/j.esmoop.2021.100049] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/31/2020] [Accepted: 01/03/2021] [Indexed: 12/16/2022] Open
Abstract
Background There is no clear consensus on the recommended second-line treatment for patients with metastatic pancreatic cancer who have disease progression following gemcitabine-based therapy. We retrospectively evaluated the clinical outcomes of liposomal irinotecan (nal-IRI) plus fluorouracil/leucovorin (FL) and FOLFIRINOX (fluorouracil, leucovorin, irinotecan, and oxaliplatin) in patients who had failed on the first-line gemcitabine-based therapy. Patients and methods From January 2015 to August 2019, 378 patients with MPC who had received nal-IRI/FL (n = 104) or FOLFIRINOX (n = 274) as second-line treatment across 11 institutions were included in this retrospective study. Results There were no significant differences in baseline characteristics between groups, except age and first-line regimens. With a median follow-up of 6 months, the median progression-free survival (PFS) was 3.7 months with nal-IRI/FL versus 4.6 months with FOLFIRINOX (P = 0.44). Median overall survival (OS) was 7.7 months with nal-IRI/FL versus 9.7 months with FOLFRINOX (P = 0.13). There was no significant difference in PFS and OS between the two regimens in the univariate and multivariate analyses. The subgroup analysis revealed that younger age (<70 years) was associated with better OS with FOLFIRINOX. In contrast, older age (≥70 years) was associated with better survival outcomes with nal-IRI/FL. Adverse events were manageable with both regimens; however, the incidence of grade 3 or higher neutropenia and peripheral neuropathy was higher in patients treated with FOLFIRINOX than with nal-IRI/FL. Conclusions Second-line nal-IRI/FL and FOLFIRINOX showed similar effectiveness outcomes after progression following first-line gemcitabine-based therapy. Age could be the determining factor for choosing the appropriate second-line therapy. This multicenter retrospective study investigated nal-IRI/FL and FOLFIRINOX outcomes after gemcitabine-based therapy. We found no significant differences in outcome between nal-IRI/FL and FOLFIRINOX treatment. Both regimens were well tolerated; however, neutropenia and peripheral neuropathy were more frequent with FOLFIRINOX. Age (cut-off, 70 years) showed differential efficacy between chemotherapy regimens.
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Affiliation(s)
- H S Park
- Division of Medical Oncology, Department of Internal Medicine, St. Vincent's Hospital, The Catholic University of Korea, Seoul, Korea
| | - B Kang
- Medical Oncology, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - H J Chon
- Medical Oncology, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - H-S Im
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - C-K Lee
- Division of Medical Oncology, Department of Internal Medicine, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea
| | - I Kim
- Department of Internal Medicine, Inje University Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - M J Kang
- Department of Internal Medicine, Inje University Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - J E Hwang
- Division of Hematology-Oncology, Department of Internal Medicine, Chonnam National University Medical School and Hwasun Hospital, Gwangju, Korea
| | - W K Bae
- Division of Hematology-Oncology, Department of Internal Medicine, Chonnam National University Medical School and Hwasun Hospital, Gwangju, Korea
| | - J Cheon
- Department of Hematology and Oncology, Ulsan University Hospital, Ulsan University College of Medicine, Ulsan, Korea
| | - J O Park
- Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University College of Medicine, Seoul, Korea
| | - J Y Hong
- Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University College of Medicine, Seoul, Korea
| | - J H Kang
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - J H Kim
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - S H Lim
- Division of Hematology-Oncology, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - J W Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - J-W Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - C Yoo
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
| | - H J Choi
- Division of Medical Oncology, Department of Internal Medicine, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea.
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Abstract
Non-alcoholic fatty liver disease (NAFLD) is one of the most common liver diseases. NAFLD can further progress to irreversible liver failure such as non-alcoholic steatohepatitis (NASH) fibrosis and cirrhosis. However, specific regulator of NASH- fibrosis has yet to be established. Here, we found that glutathione peroxidase 7 (GPx7) was markedly expressed in NASH fibrosis. Although GPx7 is an antioxidant enzyme protecting other organs, whether GPx7 plays a role in NASH fibrosis has yet to be studied. We found that knockdown of GPx7 in transforming growth factor-β (TGF-β) and free fatty acids (FFA)- treated LX-2 cells elevated the expression of pro-fibrotic and pro-inflammatory genes and collagen synthesis. Consistently, GPx7 overexpression in LX-2 cells led to the suppression of ROS production and reduced the expression of pro-fibrotic and pro-inflammatory genes. Further, NASH fibrosis induced by choline-deficient amino acid defined, high fat diet (CDAHFD) feeding was significantly accelerated by knockdown of GPx7, as evidenced by up-regulated liver fibrosis and inflammation compared with CDAHFD control mice. Collectively, these results suggest that GPx7 might be a novel therapeutic target to prevent the progression and development of NAFLD.
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Affiliation(s)
- Hyeon Ju Kim
- Department of Biochemistry and Molecular Biology, Chronic Intractable Disease for Systems Medicine Research Center, Yonsei University College of Medicine, Seoul 03722; Brain Korea 21 PLUS Project for Medical Science, Yonsei University, Seoul 03722, Korea
| | - Yoseob Lee
- Department of Biochemistry and Molecular Biology, Chronic Intractable Disease for Systems Medicine Research Center, Yonsei University College of Medicine, Seoul 03722; Brain Korea 21 PLUS Project for Medical Science, Yonsei University, Seoul 03722, Korea
| | - Sungsoon Fang
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University, Seoul 03722; Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Won Kim
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Seoul National University College of Medicine, Seoul Metropolitan Government Boramae Medical Center, Seoul 07061, Korea
| | - Hyo Jung Kim
- 1Department of Biochemistry and Molecular Biology, Chronic Intractable Disease for Systems Medicine Research Center, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Jae-Woo Kim
- Department of Biochemistry and Molecular Biology, Chronic Intractable Disease for Systems Medicine Research Center, Yonsei University College of Medicine, Seoul 03722; Brain Korea 21 PLUS Project for Medical Science, Yonsei University, Seoul 03722, Korea
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Johnston D, Kim J, Taylor JF, Earley B, McCabe MS, Lemon K, Duffy C, McMenamy M, Cosby SL, Waters SM. ATAC-Seq identifies regions of open chromatin in the bronchial lymph nodes of dairy calves experimentally challenged with bovine respiratory syncytial virus. BMC Genomics 2021; 22:14. [PMID: 33407093 PMCID: PMC7789798 DOI: 10.1186/s12864-020-07268-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 11/23/2020] [Indexed: 12/13/2022] Open
Abstract
Background Bovine Respiratory Syncytial Virus (BRSV) is a cause of Bovine Respiratory Disease (BRD). DNA-based biomarkers contributing to BRD resistance are potentially present in non-protein-coding regulatory regions of the genome, which can be determined using ATAC-Seq. The objectives of this study were to: (i) identify regions of open chromatin in DNA extracted from bronchial lymph nodes (BLN) of healthy dairy calves experimentally challenged with BRSV and compare them with those from non-challenged healthy control calves, (ii) elucidate the chromatin regions that were differentially or uniquely open in the BRSV challenged relative to control calves, and (iii) compare the genes found in regions proximal to the differentially open regions to the genes previously found to be differentially expressed in the BLN in response to BRSV and to previously identified BRD susceptibility loci. This was achieved by challenging clinically healthy Holstein-Friesian calves (mean age 143 ± 14 days) with either BRSV inoculum (n = 12) or with sterile phosphate buffered saline (PBS) (n = 6) and preparing and sequencing ATAC-Seq libraries from fresh BLN tissues. Results Using Diffbind, 9,144 and 5,096 differentially accessible regions (P < 0.05, FDR < 0.05) were identified between BRSV challenged and control calves employing DeSeq2 and EdgeR, respectively. Additionally, 8,791 chromatin regions were found to be uniquely open in BRSV challenged calves. Seventy-six and 150 of the genes that were previously found to be differentially expressed using RNA-Seq, were located within 2 kb downstream of the differentially accessible regions, and of the regions uniquely open in BRSV challenged calves, respectively. Pathway analyses within ClusterProfiler indicated that these genes were involved in immune responses to infection and participated in the Th1 and Th2 pathways, pathogen recognition and the anti-viral response. There were 237 differentially accessible regions positioned within 40 previously identified BRD susceptibility loci. Conclusions The identified open chromatin regions are likely to be involved in the regulatory response of gene transcription induced by infection with BRSV. Consequently, they may contain variants which impact resistance to BRD that could be used in breeding programmes to select healthier, more robust cattle. Supplementary Information The online version contains supplementary material available at 10.1186/s12864-020-07268-5.
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Affiliation(s)
- Dayle Johnston
- Animal and Bioscience Research Department, Animal & Grassland Research and Innovation Centre, Teagasc, Grange, Co. Meath, Ireland
| | - JaeWoo Kim
- Division of Animal Sciences, University of Missouri, Columbia, MO, USA
| | - Jeremy F Taylor
- Division of Animal Sciences, University of Missouri, Columbia, MO, USA
| | - Bernadette Earley
- Animal and Bioscience Research Department, Animal & Grassland Research and Innovation Centre, Teagasc, Grange, Co. Meath, Ireland
| | - Matthew S McCabe
- Animal and Bioscience Research Department, Animal & Grassland Research and Innovation Centre, Teagasc, Grange, Co. Meath, Ireland
| | - Ken Lemon
- Veterinary Sciences Division, Agri-Food and Biosciences Institute, Stormont, Belfast, Northern Ireland
| | - Catherine Duffy
- Veterinary Sciences Division, Agri-Food and Biosciences Institute, Stormont, Belfast, Northern Ireland
| | - Michael McMenamy
- Veterinary Sciences Division, Agri-Food and Biosciences Institute, Stormont, Belfast, Northern Ireland
| | - S Louise Cosby
- Veterinary Sciences Division, Agri-Food and Biosciences Institute, Stormont, Belfast, Northern Ireland
| | - Sinéad M Waters
- Animal and Bioscience Research Department, Animal & Grassland Research and Innovation Centre, Teagasc, Grange, Co. Meath, Ireland.
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Jin Y, Ji Y, Song Y, Choe SS, Jeon YG, Na H, Nam TW, Kim HJ, Nahmgoong H, Kim SM, Kim JW, Nam KT, Seong JK, Hwang D, Park CB, Lee IH, Kim JB, Lee HW. Depletion of Adipocyte Becn1 Leads to Lipodystrophy and Metabolic Dysregulation. Diabetes 2021; 70:182-195. [PMID: 33046512 PMCID: PMC7881852 DOI: 10.2337/db19-1239] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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] [Received: 12/22/2019] [Accepted: 10/02/2020] [Indexed: 11/13/2022]
Abstract
Becn1/Beclin-1 is a core component of the class III phosphatidylinositol 3-kinase required for autophagosome formation and vesicular trafficking. Although Becn1 has been implicated in numerous diseases such as cancer, aging, and neurodegenerative disease, the role of Becn1 in white adipose tissue and related metabolic diseases remains elusive. In this study, we show that adipocyte-specific Becn1 knockout mice develop severe lipodystrophy, leading to adipose tissue inflammation, hepatic steatosis, and insulin resistance. Ablation of Becn1 in adipocytes stimulates programmed cell death in a cell-autonomous manner, accompanied by elevated endoplasmic reticulum (ER) stress gene expression. Furthermore, we observed that Becn1 depletion sensitized mature adipocytes to ER stress, leading to accelerated cell death. Taken together, these data suggest that adipocyte Becn1 would serve as a crucial player for adipocyte survival and adipose tissue homeostasis.
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Affiliation(s)
- Young Jin
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Republic of Korea
| | - Yul Ji
- Department of Biological Sciences, Center for Adipocyte Structure-Function, Institute of Molecular Biology and Genetics, Seoul National University, Seoul, Republic of Korea
| | - Yaechan Song
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Republic of Korea
| | - Sung Sik Choe
- Department of Biological Sciences, Center for Adipocyte Structure-Function, Institute of Molecular Biology and Genetics, Seoul National University, Seoul, Republic of Korea
| | - Yong Geun Jeon
- Department of Biological Sciences, Center for Adipocyte Structure-Function, Institute of Molecular Biology and Genetics, Seoul National University, Seoul, Republic of Korea
| | - Heeju Na
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Republic of Korea
| | - Tae Wook Nam
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Republic of Korea
| | - Hye Jeong Kim
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Republic of Korea
| | - Hahn Nahmgoong
- Department of Biological Sciences, Center for Adipocyte Structure-Function, Institute of Molecular Biology and Genetics, Seoul National University, Seoul, Republic of Korea
| | - Sung Min Kim
- Department of Biological Sciences, Center for Adipocyte Structure-Function, Institute of Molecular Biology and Genetics, Seoul National University, Seoul, Republic of Korea
| | - Jae-Woo Kim
- Department of Biochemistry and Molecular Biology, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Ki Taek Nam
- Severance Biomedical Science Institute, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Je Kyung Seong
- Korea Mouse Phenotyping Center, Seoul National University, Seoul, Republic of Korea
| | - Daehee Hwang
- Department of Biological Sciences, Seoul National University, Seoul, Republic of Korea
| | - Chan Bae Park
- Department of Physiology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - In Hye Lee
- Department of Life Sciences, Ewha Womans University, Seoul, Republic of Korea
| | - Jae Bum Kim
- Department of Biological Sciences, Center for Adipocyte Structure-Function, Institute of Molecular Biology and Genetics, Seoul National University, Seoul, Republic of Korea
| | - Han-Woong Lee
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Republic of Korea
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Jung WJ, Park JH, Goo S, Chae JW, Kim J, Shin S, Yun HY. Dose Optimization of Vancomycin Using a Mechanism-based Exposure-Response Model in Pediatric Infectious Disease Patients. Clin Ther 2020; 43:185-194.e16. [PMID: 33358258 DOI: 10.1016/j.clinthera.2020.10.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 10/15/2020] [Accepted: 10/30/2020] [Indexed: 12/30/2022]
Abstract
PURPOSE This study aimed to determine the appropriate vancomycin dosage, considering patient size and organ maturation, by simulating the bacterial count and biomarker level for drug administration in pediatric patients with gram-positive bacterial (GPB) infections. METHODS Natural language processing for n-gram analysis was used to detect appropriate pharmacodynamic (PD) markers in infectious disease patients. In addition, a mechanism-based model was established to describe the systemic exposure and evaluate the PD marker simultaneously in pediatric patients. A simulation study was then conducted by using a mechanism-based model to evaluate the optimal dose of vancomycin in pediatric patients. FINDINGS C-reactive protein (CRP) was selected as a PD marker from an analysis of ~270,000 abstracts in PubMed. In addition, clinical results, including the vancomycin plasma concentrations and CRP levels of pediatric patients (n = 93), were collected from electronic medical records. The vancomycin pharmacokinetic model with allometric scaling and a maturation function was built as a one-compartment model, with an additional compartment for bacteria. Both the effects of vancomycin plasma concentrations on the destruction of bacteria and those of bacteria on CRP production rates were represented by using a maximum achievable effect model (Emax model). Simulation for dose optimization was conducted not only by using the final model but also by exploring the possibility of therapeutic failure based on the MICs of vancomycin for GPB. Clinical cure was defined as when the CRP level fell below the upper limit of the normal range. Our dose optimization simulations suggested a vancomycin dosage of 10 mg/kg every 8 h as the optimal maintenance dose for pediatric patients with a postconceptual age <30 weeks and 10 mg/kg every 6 h for older children, aged up to 12 years. In addition, the MIC of 3 μg/mL was assessed as the upper concentration limit associated with successful vancomycin treatment of GPB infections. IMPLICATIONS This study confirmed that the changes in bacterial counts and CRP levels were well described with mechanistic exposure-response modeling of vancomycin. This model can be used to determine optimal empiric doses of vancomycin and to improve therapeutic outcomes in pediatric patients with GPB.
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Affiliation(s)
- Woo Jin Jung
- College of Pharmacy, Chungnam National University, Daejeon, Republic of Korea
| | - Jung-Hyuck Park
- College of Pharmacy, Chungnam National University, Daejeon, Republic of Korea; Department of New Drug Development, NEXEL Corporation, Seoul, Republic of Korea
| | - Sungwoo Goo
- College of Pharmacy, Chungnam National University, Daejeon, Republic of Korea
| | - Jung-Woo Chae
- College of Pharmacy, Chungnam National University, Daejeon, Republic of Korea
| | - JaeWoo Kim
- Yangji Hospital, Seoul, Republic of Korea
| | - Sooyoung Shin
- College of Pharmacy, Chungnam National University, Daejeon, Republic of Korea; College of Pharmacy, Ajou University, Suwon, Republic of Korea; Research Institute of Pharmaceutical Science and Technology, Ajou University, Suwon, Republic of Korea
| | - Hwi-Yeol Yun
- College of Pharmacy, Chungnam National University, Daejeon, Republic of Korea.
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Alhazemi AA, Park S, Shin JH, Cho YC, Kim Y, Lee J, Kim PH, Kim JW, Chu HH. Safety and efficacy of transarterial embolisation for treatment of dorsal pancreatic artery haemorrhage. Clin Radiol 2020; 76:314.e9-314.e15. [PMID: 33334554 DOI: 10.1016/j.crad.2020.11.111] [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] [Received: 06/04/2020] [Accepted: 11/12/2020] [Indexed: 11/28/2022]
Abstract
AIM To evaluate the safety and efficacy of transarterial embolisation (TAE) of dorsal pancreatic artery (DPA) haemorrhage. MATERIALS AND METHODS Nineteen consecutive patients (M:F = 16:3, mean age 59.6 years) who underwent TAE of DPA in three tertiary medical centres between January 2001 to January 2020 were reviewed retrospectively. Angiographic features and the technical and clinical outcomes of TAE were analysed. RESULTS The clinical presentations were a bloody drain from the Jackson-Pratt drainage tube (n=8), melaena (n=7), abdominal pain (n=4), and haematochezia (n=3). Angiographic findings included pseudoaneurysm (n=14), contrast media extravasation (n=4), or abrupt cut-off of the arterial branch (n=1). The NBCA (N-butyl-cyanoacrylate; n=4), microcoils (n=4), and a combination of these agents (n=7) were used as embolic agents. The most common origin of the DPA in the present study cohort was the splenic artery (n=7), followed by the coeliac trunk (n=4), common hepatic artery (n=4), and superior mesenteric artery (n=4). Technical and clinical success rates were 100% and 84.2% (16/19), respectively. Of the three clinically unsuccessful cases, two patients were revealed to have newly developed bleeding from another artery. The other patient expired 1 day after the TAE procedure due to a progression of hepatic failure. In one patient, an asymptomatic non-target embolisation occurred in the right posterior tibial artery as a procedure-related complication. No major complications were observed. CONCLUSION TAE is safe and effective for the management of bleeding from the DPA. It is important to be aware of the DPA as a potential bleeding source, including the relevant clinical characteristics.
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Affiliation(s)
- A A Alhazemi
- Department of Radiology, King Fahd Central Hospital, Jazan 45196, Saudi Arabia
| | - S Park
- Department of Radiology, Gil Medical Centre, Gachon University College of Medicine, Incheon, Republic of Korea
| | - J H Shin
- Department of Radiology and Research Institute of Radiology, Asan Medical Centre, University of Ulsan College of Medicine, Seoul, Republic of Korea.
| | - Y C Cho
- Department of Radiology and Research Institute of Radiology, Asan Medical Centre, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Y Kim
- Department of Radiology Chungbuk National University Hospital, Cheongju, Republic of Korea
| | - J Lee
- Department of Radiology Chungbuk National University Hospital, Cheongju, Republic of Korea
| | - P H Kim
- Department of Radiology and Research Institute of Radiology, Asan Medical Centre, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - J W Kim
- Department of Radiology and Research Institute of Radiology, Asan Medical Centre, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - H H Chu
- Department of Radiology and Research Institute of Radiology, Asan Medical Centre, University of Ulsan College of Medicine, Seoul, Republic of Korea
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Han HJ, Kim JW, Jeong JH. Intramedullary pneumorrhachis following a cervical epidural steroid injection. Neurochirurgie 2020; 67:189-192. [PMID: 33049286 DOI: 10.1016/j.neuchi.2020.08.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 06/29/2020] [Accepted: 08/27/2020] [Indexed: 10/23/2022]
Abstract
Pneumorrhachis (PR) is a rare radiological condition characterized by the presence of intraspinal air. PR is commonly classified as spontaneous (nontraumatic), traumatic, or iatrogenic, and iatrogenic PR is the most common and often occurs secondary to invasive procedures such as epidural anesthesia, lumbar puncture, or spinal surgery. PR is usually asymptomatic, but it can produce symptoms associated with its underlying pathology. Here, we report a rare case of intramedullary cervical PR following a cervical epidural steroid injection (ESI) and include pertinent discussion.
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Affiliation(s)
- H J Han
- Department of Neurosurgery, Dongguk University Gyeongju Hospital, Dongguk University College of Medicine, Dongdae-ro 87, 38067 Gyeongju, Republic of Korea.
| | - J W Kim
- Department of Neurosurgery, Dongguk University Gyeongju Hospital, Dongguk University College of Medicine, Dongdae-ro 87, 38067 Gyeongju, Republic of Korea.
| | - J H Jeong
- Department of Neurosurgery, Dongguk University Gyeongju Hospital, Dongguk University College of Medicine, Dongdae-ro 87, 38067 Gyeongju, Republic of Korea.
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Abstract
Autosomal dominant hypocalcified amelogenesis imperfecta (ADHCAI; OMIM #130900) is a genetic disorder exhibiting severe hardness defects and reduced fracture toughness of dental enamel. While the condition is nonsyndromic, it can be associated with other craniofacial anomalies, such as malocclusions and delayed or failed tooth eruption. Truncation mutations in FAM83H (OMIM *611927) are hitherto the sole cause of ADHCAI. With human genetic studies, Fam83h knockout and mutation-knock-in mouse models indicated that FAM83H does not serve a critical physiologic function during enamel formation and suggested a neomorphic mutation mechanism causing ADHCAI. The function of FAM83H remains obscure. FAM83H has been shown to interact with various isoforms of casein kinase 1 (CK1) and keratins and to mediate organization of keratin cytoskeletons and desmosomes. By considering FAM83H a scaffold protein to anchor CK1s, further molecular characterization of the protein could gain insight into its functions. In this study, we characterized 9 kindreds with ADHCAI and identified 3 novel FAM83H truncation mutations: p.His437*, p.Gln459*, and p.Glu610*. Some affected individuals exhibited hypoplastic phenotypes, in addition to the characteristic hypocalcification enamel defects, which have never been well documented. Failed eruption of canines or second molars in affected persons was observed in 4 of the families. The p.Glu610* mutation was located in a gap area (amino acids 470 to 625) within the zone of previously reported pathogenic variants (amino acids 287 to 694). In vitro pull-down studies with overexpressed FAM83H proteins in HEK293 cells demonstrated an interaction between FAM83H and SEC16A, a protein component of the COP II complex at endoplasmic reticulum exit sites. The interaction was mediated by the middle part (amino acids 287 to 657) of mouse FAM83H protein. Results of this study significantly extended the phenotypic and genotypic spectrums of FAM83H-associated ADHCAI and suggested a role for FAM83H in endoplasmic reticulum-to-Golgi vesicle trafficking and protein secretion (dbGaP phs001491.v1.p1).
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Affiliation(s)
- S K Wang
- Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, Ann Arbor, MI, USA.,Department of Dentistry, School of Dentistry, National Taiwan University, Jhongjheng District, Taipei City, Taiwan
| | - H Zhang
- Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | - C Y Hu
- Department of Prosthodontics, National Taiwan University Hospital, Jhongjheng District, Taipei City, Taiwan
| | - J F Liu
- Division of Pediatric Dentistry, Department of Stomatology, Taichung Veterans General Hospital, Xitun District, Taichung City, Taiwan
| | - S Chadha
- Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | - J W Kim
- Department of Pediatric Dentistry and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea.,Department of Molecular Genetics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea
| | - J P Simmer
- Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | - J C C Hu
- Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
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Wenger DS, Triplette M, Shahrir S, Akgun KM, Wongtrakool C, Brown ST, Kim JW, Soo Hoo GW, Rodriguez-Barradas MC, Huang L, Feemster LC, Zifodya J, Crothers K. Associations of marijuana with markers of chronic lung disease in people living with HIV. HIV Med 2020; 22:92-101. [PMID: 33022830 DOI: 10.1111/hiv.12966] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 08/21/2020] [Accepted: 08/26/2020] [Indexed: 12/18/2022]
Abstract
OBJECTIVES The relationship between marijuana use and markers of chronic lung disease in people living with HIV (PLWH) is poorly understood. METHODS We performed a cross-sectional analysis of the Examinations of HIV-Associated Lung Emphysema (EXHALE) study, including 162 HIV-positive patients and 138 participants without HIV. We modelled marijuana exposure as: (i) current daily or weekly marijuana smoking vs. monthly or less often; or (ii) cumulative marijuana smoking (joint-years). Linear and logistic regression estimated associations between marijuana exposure and markers of lung disease, adjusted for tobacco smoking and other factors. RESULTS In PLWH, current daily or weekly marijuana use was associated with a larger forced vital capacity (FVC), larger total lung capacity and increased odds of radiographic emphysema compared with marijuana non-smokers in adjusted models; these associations were not statistically significant in participants without HIV. Marijuana joint-years were associated with higher forced expiratory volume in 1 s and FVC in PLWH but not with emphysema. CONCLUSIONS In PLWH, marijuana smoking was associated with higher lung volumes and potentially with radiographic emphysema. No consistently negative associations were observed between marijuana and measures of chronic lung health.
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Affiliation(s)
- D S Wenger
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Washington, Seattle, WA, USA
| | - M Triplette
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Washington, Seattle, WA, USA.,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - S Shahrir
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Washington, Seattle, WA, USA
| | - K M Akgun
- Department of Internal Medicine, Veterans Affairs (VA) Connecticut Healthcare System and Yale University School of Medicine, New Haven, CT, USA
| | - C Wongtrakool
- Atlanta VA Medical Center and Department of Medicine, Emory University School of Medicine, Atlanta, GA, USA
| | - S T Brown
- Department of Medicine, James J. Peters VA Medical Center, Bronx, NY, USA.,Department of Medicine, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
| | - J W Kim
- Department of Medicine, James J. Peters VA Medical Center, Bronx, NY, USA
| | - G W Soo Hoo
- VA Greater Los Angeles Healthcare System and Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - M C Rodriguez-Barradas
- Michael E. DeBakey VA Medical Center and Department of Medicine, Baylor College of Medicine, Houston, TX, USA
| | - L Huang
- Center for AIDS Research, University of California at San Francisco, San Francisco, CA, USA
| | - L C Feemster
- VA Puget Sound Healthcare System, University of Washington, Seattle, WA, USA
| | - J Zifodya
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Washington, Seattle, WA, USA
| | - K Crothers
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Washington, Seattle, WA, USA.,VA Puget Sound Healthcare System, University of Washington, Seattle, WA, USA
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Park JS, Kim TH, Oh YJ, Park EJ, Kim JW, Jeong H. Investigation of photodarkening in tandem-pumped Yb-doped fibers. Opt Express 2020; 28:27316-27323. [PMID: 32988028 DOI: 10.1364/oe.400094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 08/25/2020] [Indexed: 06/11/2023]
Abstract
Investigation of photodarkening (PD) in Yb-doped fibers tandem-pumped at 1018 nm is reported. For a homemade Yb-doped aluminosilicate double-clad fiber (YADF), the transmitted power of a 633 nm probe beam is reduced by 2.4% over 2 hours for the tandem pumping configuration at 1018 nm, which is significantly smaller than 33.3% for a laser diode (LD) pumping at 976 nm. A tandem-pumped Yb fiber amplifier also shows a much smaller decrease in the amplified output power over time than a LD-pumped Yb fiber amplifier. Based on fluorescence spectra of the YADF, we can not only associate PD of the YADF to intrinsic oxygen deficiency centers or Tm3+ impurities but also confirm the impact of the excited Yb3+ ion density on PD. The benefits of the tandem pumping in a high-power Yb fiber laser system will be discussed.
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40
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Yoo YM, Lee JH, Jung EM, Park MJ, Kim JW, Yang J, Jeung EB. Data on cytotoxicity of plant essential oils in A549 and Detroit 551 cells. Data Brief 2020; 32:106186. [PMID: 32904311 PMCID: PMC7452582 DOI: 10.1016/j.dib.2020.106186] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 08/03/2020] [Accepted: 08/11/2020] [Indexed: 11/29/2022] Open
Abstract
To secure the safety for industrial applications of plant essential oils, it is necessary to determine the inhibitory concentration and inhibitory mechanism of cell proliferation in skin cells and lung cells. Considering inhalation through the respiratory system and skin contact of humans with essential oils, we used human lung cancer cells A549 and human skin fibroblasts Detroit 551 cells for all experiments. In this study, we examined IC50 values and protein levels of cell cycle markers (cyclin A, cyclin B, cyclin D, and cyclin E) and apoptosis marker (caspase-3) after exposure to 10 plant essential oils, including Dendranthema indicum (L.) Des Moul, Peucedanum japonicum Thunb, Dendranthema zawadskii var. latilobum (Maxim.) Kitam, Agastache rugosa (Fisch.&Mey.) Kuntze, Vitex rotundifolia L.f, Pinus rigida Mill; Orixa japonica Thunb, Pinus strobus L, Chamaecyparis pisifera (Siebold et Zucc.) Endl. var. filifera Beissn. et Hochst, and Citrus sunki Hort. ex Tanaka. After the treatment of A549 and Detroit 551 cells to varying concentrations of the 10 plant essential oils, IC50 values were determined by CCK analysis, whereas protein expressions of the four cyclins and caspase-3 were identified by Western blotting analysis. We believe that by examining the degree and mechanism of cell proliferation inhibition exerted by essential oils on skin and lung cells of humans, data obtained in this study can provide guidelines for the industrial application of plant essential oils.
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Affiliation(s)
- Yeong-Min Yoo
- Laboratory of Veterinary Biochemistry and Molecular Biology, College of Veterinary Medicine, Chungbuk National University, Chungbuk 28644, Republic of Korea
| | - Jae-Hwan Lee
- Laboratory of Veterinary Biochemistry and Molecular Biology, College of Veterinary Medicine, Chungbuk National University, Chungbuk 28644, Republic of Korea
| | - Eui-Man Jung
- Laboratory of Veterinary Biochemistry and Molecular Biology, College of Veterinary Medicine, Chungbuk National University, Chungbuk 28644, Republic of Korea
| | - Mi-Jin Park
- Division of wood chemistry & Microbiology, Department of Forest Products, National Institute of Forest Science, Seoul 02455, Republic of Korea
| | - Jae-Woo Kim
- Division of wood chemistry & Microbiology, Department of Forest Products, National Institute of Forest Science, Seoul 02455, Republic of Korea
| | - Jiyoon Yang
- Division of wood chemistry & Microbiology, Department of Forest Products, National Institute of Forest Science, Seoul 02455, Republic of Korea
| | - Eui-Bae Jeung
- Laboratory of Veterinary Biochemistry and Molecular Biology, College of Veterinary Medicine, Chungbuk National University, Chungbuk 28644, Republic of Korea
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Seok JW, Kim D, Yoon BK, Lee Y, Kim HJ, Hwang N, Fang S, Kim HJ, Kim JW. Dexras1 plays a pivotal role in maintaining the equilibrium between adipogenesis and osteogenesis. Metabolism 2020; 108:154250. [PMID: 32335074 DOI: 10.1016/j.metabol.2020.154250] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [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: 02/13/2020] [Revised: 04/14/2020] [Accepted: 04/21/2020] [Indexed: 12/18/2022]
Abstract
BACKGROUND Chronic steroid treatment causes an increase in visceral adiposity and osteoporosis. It is believed that steroids may alter a balance between differentiation of mesenchymal stem cells (MSCs) into either adipocytes or osteoblasts; however, the detailed molecular mechanisms are unclear. We previously identified Dexras1 as a critical factor that potentiates adipogenesis in response to glucocorticoids. Thus, in this study, we investigated the role of Dexras1 in maintaining the balance between chronic steroid treatment-associated adipogenesis and osteoporosis. MATERIAL AND METHODS We treated wild type (WT) and Dexras1 knockout (KO) mice with dexamethasone for five weeks followed by 60% HFD for additional two weeks with dexamethasone. The changes of glucocorticoid-induced body weight gain and osteoporosis were analyzed. Bone marrow derived stromal cells (BMSCs) and mouse embryonic fibroblasts (MEFs) extracted from WT and Dexras1 KO mice, as well as MC3T3-E1 pre-osteoblasts and osteoclasts differentiated from RAW264.7 were analyzed to further define the role of Dexras1 in osteoblasts and osteoclasts. RESULTS Dual-energy X-ray absorptiometry and micro-computed tomography analyses in murine femurs revealed that Dexras1 deficiency was associated with increased osteogenesis, concurrent with reduced adipogenesis. Furthermore, Dexras1 deficiency promoted osteogenesis of BMSCs and MEFs in vitro, suggesting that Dexras1 deficiency prevents steroid-induced osteoporosis. We also observed that Dexras1 downregulated SMAD signaling pathways, which reduced the osteogenic differentiation capacity of pre-osteoblast MC3T3-E1 cells into mature osteoblasts. CONCLUSION We propose that Dexras1 is critical for maintaining the equilibrium between adipogenesis and osteogenesis upon steroid treatment.
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Affiliation(s)
- Jo Woon Seok
- Department of Biochemistry and Molecular Biology, Chronic Intractable Disease Systems Medicine Research Center, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Brain Korea 21 PLUS Project for Medical Science, Yonsei University, Seoul 03722, Republic of Korea
| | - Daeun Kim
- Department of Biochemistry and Molecular Biology, Chronic Intractable Disease Systems Medicine Research Center, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Brain Korea 21 PLUS Project for Medical Science, Yonsei University, Seoul 03722, Republic of Korea
| | - Bo Kyung Yoon
- Department of Biochemistry and Molecular Biology, Chronic Intractable Disease Systems Medicine Research Center, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Brain Korea 21 PLUS Project for Medical Science, Yonsei University, Seoul 03722, Republic of Korea
| | - Yoseob Lee
- Department of Biochemistry and Molecular Biology, Chronic Intractable Disease Systems Medicine Research Center, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Brain Korea 21 PLUS Project for Medical Science, Yonsei University, Seoul 03722, Republic of Korea
| | - Hyeon Ju Kim
- Department of Biochemistry and Molecular Biology, Chronic Intractable Disease Systems Medicine Research Center, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Brain Korea 21 PLUS Project for Medical Science, Yonsei University, Seoul 03722, Republic of Korea
| | - Nahee Hwang
- Department of Biochemistry and Molecular Biology, Chronic Intractable Disease Systems Medicine Research Center, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Brain Korea 21 PLUS Project for Medical Science, Yonsei University, Seoul 03722, Republic of Korea
| | - Sungsoon Fang
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University, Seoul 03722, Republic of Korea; Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Hyo Jung Kim
- Department of Biochemistry and Molecular Biology, Chronic Intractable Disease Systems Medicine Research Center, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Department of Orthopedic Surgery, Konkuk University School of Medicine, Seoul 05030, Republic of Korea.
| | - Jae-Woo Kim
- Department of Biochemistry and Molecular Biology, Chronic Intractable Disease Systems Medicine Research Center, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Brain Korea 21 PLUS Project for Medical Science, Yonsei University, Seoul 03722, Republic of Korea.
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42
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Zang Y, Song JH, Oh SH, Kim JW, Lee MN, Piao X, Yang JW, Kim OS, Kim TS, Kim SH, Koh JT. Targeting NLRP3 Inflammasome Reduces Age-Related Experimental Alveolar Bone Loss. J Dent Res 2020; 99:1287-1295. [PMID: 32531176 DOI: 10.1177/0022034520933533] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The cause of chronic inflammatory periodontitis, which leads to the destruction of periodontal ligament and alveolar bone, is multifactorial. An increasing number of studies have shown the clinical significance of NLRP3-mediated low-grade inflammation in degenerative disorders, but its causal linkage to age-related periodontitis has not yet been elucidated. In this study, we investigated the involvement of the NLRP3 inflammasome and the therapeutic potential of NLRP3 inhibition in age-related alveolar bone loss by using in vivo and in vitro models. The poor quality of alveolar bones in aged mice was correlated with caspase-1 activation by macrophages and elevated levels of IL-1β, which are mainly regulated by the NLRP3 inflammasome, in periodontal ligament and serum, respectively. Aged mice lacking Nlrp3 showed better bone mass than age-matched wild-type mice via a way that affects bone resorption rather than bone formation. In line with this finding, treatment with MCC950, a potent inhibitor of the NLRP3 inflammasome, significantly suppressed alveolar bone loss with reduced caspase-1 activation in aged mice but not in young mice. In addition, our in vitro studies showed that the addition of IL-1β encourages RANKL-induced osteoclastogenesis from bone marrow-derived macrophages and that treatment with MCC950 significantly suppresses osteoclastic differentiation directly, irrelevant to the inhibition of IL-1β production. Our results suggest that the NLRP3 inflammasome is a critical mediator in age-related alveolar bone loss and that targeting the NLRP3 inflammasome could be a novel option for controlling periodontal degenerative changes with age.
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Affiliation(s)
- Y Zang
- Department of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea.,Hard-tissue Biointerface Research Center, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - J H Song
- Department of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea.,Hard-tissue Biointerface Research Center, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - S H Oh
- Department of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea.,Hard-tissue Biointerface Research Center, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - J W Kim
- Department of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea.,Hard-tissue Biointerface Research Center, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - M N Lee
- Department of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea.,Hard-tissue Biointerface Research Center, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - X Piao
- Department of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea.,Hard-tissue Biointerface Research Center, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - J W Yang
- Department of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea.,Hard-tissue Biointerface Research Center, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - O S Kim
- Hard-tissue Biointerface Research Center, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea.,Department of Periodontology, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - T S Kim
- Department of Life Sciences, College of Life Sciences and Biotechnology, Korea University, Seoul, Republic of Korea
| | - S H Kim
- Hard-tissue Biointerface Research Center, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea.,Department of Oral Anatomy, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - J T Koh
- Department of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea.,Hard-tissue Biointerface Research Center, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
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Kim CH, Kim JW. Letter to the editor about the article "Different surgical outcomes in a patient with bilateral atypical femoral fracture related to bisphosphonate use with or without teriparatide treatment". Osteoporos Int 2020; 31:1177. [PMID: 32144475 DOI: 10.1007/s00198-020-05354-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 02/17/2020] [Indexed: 10/24/2022]
Affiliation(s)
- C-H Kim
- Department of Orthopedic Surgery, Gachon University Gil Medical Center, 21, Namdong-daero 774 beon-gil, Namdong-gu, Incheon, 21565, Republic of Korea
| | - J W Kim
- Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan, College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea.
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44
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Lee KK, Kim JW, Ryu JH, Kim JO. Ambient light robust gamut mapping for optical see-through displays. Opt Express 2020; 28:15392-15406. [PMID: 32403567 DOI: 10.1364/oe.391447] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 04/24/2020] [Indexed: 06/11/2023]
Abstract
An optical see-through (OST) display is affected more severely by ambient light than any other type of displays when placed in an outdoor environment with bright illuminance because of its transparency and thus, its inherent color distortion can worsen. It is hard to directly apply existing gamut mapping methods to an OST display because of its morphological gamut characteristic and the effect of ambient light. In this paper, we propose a new robust gamut mapping method which works against bright ambient light. The process is divided into two steps: lightness mapping (LM) and chroma reproduction. LM aligns the lightness level of sRGB gamut with OST gamut and partitions the region of OST gamut based on the relative size of the sRGB gamut and its lightness value. The second step (chroma reproduction) determines an appropriate chroma reproduction method (gamut compression or extension) and a proper direction for gamut mapping based on the characteristics of each region in order to minimize the effects of ambient light. The quality of color reproduction is qualitatively and quantitatively evaluated based on accurate measurements of the displayed colors. It has been experimentally confirmed that the proposed gamut mapping method can reduce color distortion more than the existing parametric gamut mapping algorithms.
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Widmeier E, Yu S, Nag A, Chung YW, Nakayama M, Fernández-Del-Río L, Hugo H, Schapiro D, Buerger F, Choi WI, Helmstädter M, Kim JW, Ryu JH, Lee MG, Clarke CF, Hildebrandt F, Gee HY. ADCK4 Deficiency Destabilizes the Coenzyme Q Complex, Which Is Rescued by 2,4-Dihydroxybenzoic Acid Treatment. J Am Soc Nephrol 2020; 31:1191-1211. [PMID: 32381600 DOI: 10.1681/asn.2019070756] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [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: 07/30/2019] [Accepted: 02/22/2020] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Mutations in ADCK4 (aarF domain containing kinase 4) generally manifest as steroid-resistant nephrotic syndrome and induce coenzyme Q10 (CoQ10) deficiency. However, the molecular mechanisms underlying steroid-resistant nephrotic syndrome resulting from ADCK4 mutations are not well understood, largely because the function of ADCK4 remains unknown. METHODS To elucidate the ADCK4's function in podocytes, we generated a podocyte-specific, Adck4-knockout mouse model and a human podocyte cell line featuring knockout of ADCK4. These knockout mice and podocytes were then treated with 2,4-dihydroxybenzoic acid (2,4-diHB), a CoQ10 precursor analogue, or with a vehicle only. We also performed proteomic mass spectrometry analysis to further elucidate ADCK4's function. RESULTS Absence of Adck4 in mouse podocytes caused FSGS and albuminuria, recapitulating features of nephrotic syndrome caused by ADCK4 mutations. In vitro studies revealed that ADCK4-knockout podocytes had significantly reduced CoQ10 concentration, respiratory chain activity, and mitochondrial potential, and subsequently displayed an increase in the number of dysmorphic mitochondria. However, treatment of 3-month-old knockout mice or ADCK4-knockout cells with 2,4-diHB prevented the development of renal dysfunction and reversed mitochondrial dysfunction in podocytes. Moreover, ADCK4 interacted with mitochondrial proteins such as COQ5, as well as cytoplasmic proteins such as myosin and heat shock proteins. Thus, ADCK4 knockout decreased the COQ complex level, but overexpression of ADCK4 in ADCK4-knockout podocytes transfected with wild-type ADCK4 rescued the COQ5 level. CONCLUSIONS Our study shows that ADCK4 is required for CoQ10 biosynthesis and mitochondrial function in podocytes, and suggests that ADCK4 in podocytes stabilizes proteins in complex Q in podocytes. Our study also suggests a potential treatment strategy for nephrotic syndrome resulting from ADCK4 mutations.
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Affiliation(s)
- Eugen Widmeier
- Division of Nephrology, Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts.,Renal Division, Department of Medicine, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Seyoung Yu
- Departments of Pharmacology, Yonsei University College of Medicine, Seoul, Korea .,Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - Anish Nag
- Department of Chemistry and Biochemistry, Molecular Biology Institute, University of California, Los Angeles, Los Angeles, California
| | - Youn Wook Chung
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Makiko Nakayama
- Division of Nephrology, Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Lucía Fernández-Del-Río
- Department of Chemistry and Biochemistry, Molecular Biology Institute, University of California, Los Angeles, Los Angeles, California
| | - Hannah Hugo
- Division of Nephrology, Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | - David Schapiro
- Division of Nephrology, Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Florian Buerger
- Division of Nephrology, Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Won-Il Choi
- Division of Nephrology, Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Martin Helmstädter
- Renal Division, Department of Medicine, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Jae-Woo Kim
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea.,Biochemistry and Molecular Biology, Yonsei University College of Medicine, Seoul, Korea
| | - Ji-Hwan Ryu
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea.,Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Min Goo Lee
- Departments of Pharmacology, Yonsei University College of Medicine, Seoul, Korea.,Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - Catherine F Clarke
- Department of Chemistry and Biochemistry, Molecular Biology Institute, University of California, Los Angeles, Los Angeles, California
| | - Friedhelm Hildebrandt
- Division of Nephrology, Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Heon Yung Gee
- Departments of Pharmacology, Yonsei University College of Medicine, Seoul, Korea .,Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
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Abstract
Oxidative stress and adipogenesis play key roles in the pathogenesis of Graves' orbitopathy (GO). In this study, the therapeutic effects of caffeine on the reduction of oxidative stress and adipogenesis were evaluated in primary cultured GO orbital fibroblasts in vitro. Orbital fibroblasts were cultured from orbital connective tissues obtained from individuals with GO. Intracellular reactive oxygen species (ROS) levels induced by hydrogen peroxide or cigarette smoke extract and the expression of anti-oxidative enzymes were measured after caffeine treatment. After adipogenic differentiation and caffeine treatment, cells were stained with Oil Red O and the levels of peroxisome proliferator activator γ (PPARγ), C/EBPα, and C/EBPβ were determined by western blot analysis. Hydrogen peroxide and cigarette smoke extract increased the levels of intracellular ROS and anti-oxidative enzymes, which decreased in a dose-dependent manner upon pretreatment with caffeine in GO orbital fibroblasts. Oil Red-O staining results revealed a decrease in lipid droplets; furthermore, PPARγ, C/EBPα, and C/EBPβ protein expression levels were inhibited upon treatment with caffeine during adipocyte differentiation. In conclusion, caffeine decreased oxidative stress and adipogenesis in GO orbital fibroblasts in vitro. These findings may contribute to the development of new types of caffeine-containing pharmacological agents for use in the management of GO.
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Affiliation(s)
- JaeSang Ko
- Department of Ophthalmology, Severance Hospital, Institute of Vision Research, Yonsei University College of Medicine, Seoul, Korea
| | - Ji-Young Kim
- Department of Ophthalmology, Severance Hospital, Institute of Vision Research, Yonsei University College of Medicine, Seoul, Korea
| | - Jae-Woo Kim
- Department of Biochemistry and Molecular Biology, Yonsei University College of Medicine, Seoul, Korea
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University, Seoul, Korea
| | - Jin Sook Yoon
- Department of Ophthalmology, Severance Hospital, Institute of Vision Research, Yonsei University College of Medicine, Seoul, Korea
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Choi Y, Choi H, Yoon BK, Lee H, Seok JW, Kim HJ, Kim JW. Serpina3c Regulates Adipogenesis by Modulating Insulin Growth Factor 1 and Integrin Signaling. iScience 2020; 23:100961. [PMID: 32193145 PMCID: PMC7076559 DOI: 10.1016/j.isci.2020.100961] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 11/19/2019] [Accepted: 02/28/2020] [Indexed: 12/15/2022] Open
Abstract
Preadipocyte differentiation can be induced upon a hormonal treatment, and various factors secreted by the cells may contribute to adipogenesis. In this study, RNA-seq revealed Serpina3c as a critical factor regulating the signaling network during adipogenesis. Serpina3c is a secretory protein and is highly expressed in fat tissues. Knockdown of Serpina3c decreased adipogenesis by attenuating the mitotic clonal expansion of 3T3-L1 cells. These cells exhibited decreases in integrin α5, which abolished the phosphorylation of integrin β3. We found that Serpina3c inhibits a serine protease that regulates integrin α5 degradation. Knockdown of Serpina3c disrupted integrin-mediated insulin growth factor 1 (IGF-1) signaling and ERK activation. Serpina3c-mediated regulation of integrin-IGF-1 signaling is also associated with AKT activation, which affects the nuclear translocation of GSK3β. Altogether, our results indicate that Serpina3c secreted from differentiating adipocytes inhibits serine proteases to modulate integrin/IGF-1-mediated ERK and AKT signaling and thus is a critical factor contributing to adipogenesis. RNA-seq revealed Serpina3c as a critical factor regulating adipogenesis Knockdown of Serpina3c attenuated the mitotic clonal expansion of 3T3-L1 cells Knockdown of Serpina3c leads to the degradation of integrin α5 Serpina3c regulates integrin-mediated IGF-1 signaling and ERK/AKT activation
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Affiliation(s)
- Yoonjeong Choi
- Department of Biochemistry and Molecular Biology, Chronic Intractable Disease for Systems Medicine Research Center, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea; Brain Korea 21 PLUS Project for Medical Science, Yonsei University, Seoul 03722, South Korea
| | - Hyeonjin Choi
- Department of Biochemistry and Molecular Biology, Chronic Intractable Disease for Systems Medicine Research Center, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea
| | - Bo Kyung Yoon
- Department of Biochemistry and Molecular Biology, Chronic Intractable Disease for Systems Medicine Research Center, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea; Brain Korea 21 PLUS Project for Medical Science, Yonsei University, Seoul 03722, South Korea
| | - Hyemin Lee
- Department of Biochemistry and Molecular Biology, Chronic Intractable Disease for Systems Medicine Research Center, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea; Department of Integrated OMICS for Biomedical Sciences, Graduate School, Yonsei University, Seoul 03722, South Korea
| | - Jo Woon Seok
- Department of Biochemistry and Molecular Biology, Chronic Intractable Disease for Systems Medicine Research Center, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea; Brain Korea 21 PLUS Project for Medical Science, Yonsei University, Seoul 03722, South Korea
| | - Hyo Jung Kim
- Department of Biochemistry and Molecular Biology, Chronic Intractable Disease for Systems Medicine Research Center, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea.
| | - Jae-Woo Kim
- Department of Biochemistry and Molecular Biology, Chronic Intractable Disease for Systems Medicine Research Center, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea; Brain Korea 21 PLUS Project for Medical Science, Yonsei University, Seoul 03722, South Korea; Department of Integrated OMICS for Biomedical Sciences, Graduate School, Yonsei University, Seoul 03722, South Korea.
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Lee SH, Shin KS, Kim JW, Kang JY, Kim JK. Stimulus-Responsive Contact Lens for IOP Measurement or Temperature-Triggered Drug Release. Transl Vis Sci Technol 2020; 9:1. [PMID: 32818089 PMCID: PMC7396181 DOI: 10.1167/tvst.9.4.1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 12/12/2019] [Indexed: 01/01/2023] Open
Abstract
Purpose Continuous monitoring of elevated intraocular pressure and timely drug delivery for successful treatment of glaucoma are necessary to reduce intraocular pressure (IOP), which shows wide variations across the circadian pattern and in response to medication. This in vivo study presents a new contact lens-based method of optical IOP measurement or temperature-triggered drug elution. Methods A contact lens with moiré patterns of concentric circles measures the changes in eyeball diameter of a rabbit glaucoma model due to changes in IOP by superimposing a camera-captured image onto the micro pattern of the contact lens with a computer-assisted virtual reference image. Drug elution from the nanoporous bicontinuous microemulsion contact lens (BME-CL) into the eye of the rabbit was triggered by a temperature-responsive nanogel drug carrier. Results The moiré pattern change on the contact lens was proportional to the IOP increase in the rabbit eye either ex vivo or in vivo and was also correlated with imaging-based alterations in the anterior chamber angle at a range of IOP values (3-40 mm Hg). The cumulative drug absorbed reached as high as 10.6 µg/mL aqueous humor until 7 days after wearing the BME-CL, and a 33% decrease in IOP was observed at 3 hours after drug elution. Conclusions The results suggest that continuous measurement and treatment of elevated IOP are feasible using moiré pattern-inscribed and thermosensitive drug-eluting contact lenses, respectively. Translational Relevance Pressure-sensing or thermosensitive contact lenses enable monitoring IOP or drug release triggered by body temperature for the treatment of glaucoma patients.
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Affiliation(s)
- Se-Hee Lee
- Department of Optometry and Vision Science, College of Medical Science, Catholic University of Daegu, Kyungsan City, Korea
- Department of Radiology and Biomedical Engineering, College of Medical Science, Catholic University of Daegu, Daegu, Korea
| | - Kyung-Sik Shin
- Center for Biomicrosystems, Korea Institute of Science and Technology, Seoul, Korea
| | - Jae-Woo Kim
- Department of Ophthalmology, School of Medicine, Catholic University of Daegu, Daegu,Korea
| | - Ji-Yoon Kang
- Center for Biomicrosystems, Korea Institute of Science and Technology, Seoul, Korea
| | - Jong-Ki Kim
- Department of Radiology and Biomedical Engineering, College of Medical Science, Catholic University of Daegu, Daegu, Korea
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Ahn C, Lee JH, Park MJ, Kim JW, Yang J, Yoo YM, Jeung EB. Cytostatic effects of plant essential oils on human skin and lung cells. Exp Ther Med 2020; 19:2008-2018. [PMID: 32104260 PMCID: PMC7027107 DOI: 10.3892/etm.2020.8460] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Accepted: 10/07/2019] [Indexed: 12/11/2022] Open
Abstract
Essential oils are volatile compounds extracted from various plants by distillation, hydrodiffusion or compression. In recent years, the use of essential oils has gained popularity. Many pharmaceutical, cosmetic, sanitary, food industry and agriculture studies have revealed that essential oils exert antibacterial, antiviral, antifungal, antiparasitic, insecticidal, anticancer, neuroprotective, psychophysiological and anti-aging effects. Despite their reported uses, recent studies of eukaryotic cells have demonstrated that essential oils exert prooxidant and cytotoxic effects. Therefore, for the effective clinical use of essential oils, an evaluation of their cytotoxicity and the identification of the mechanisms affecting cell viability are required. To evaluate cytotoxicity, the present study determined the IC50 values of 15 essential oils provided by the Korea Forest Research Institute (Pinus densiflora for. multicaulis Uyeki, Trifolium repens, Ligularia fischeri, Abies nephrolepis, Illicium anisatum, Zanthoxylum coreanum, Abies koreana, Lindera obtusiloba, Chamaecyparis obtuse, Pinus densiflora, Magnolia kobus, Picea koraiensis, Picea abies, Abies holophylla and Platycladus orientalis). Their effect was then assessed in human lung cells (A549) and human skin cells (Detroit 551) by performing cell counting kit-8 assays. To identify the mechanism associated with each oil's cytotoxicity, expressions of cytotoxicity-associated marker genes (cyclin A, cyclin B, cyclin D and cyclin E) involved in the cell cycle and caspase-3 (involved in cell death) were examined by performing reverse transcription-quantitative PCR and western blotting. In conclusion, plant essential oils can be used as a good source of medicine. However, without examining the safety of essential oils, they cannot be used in clinics. The results included estimates of the degree of cytotoxicity and the mechanism of cell death for each oil. It is expected that the data obtained from the current study will form guidelines for the clinically appropriate and safe use of these tested essential oils.
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Affiliation(s)
- Changhwan Ahn
- Laboratory of Veterinary Biochemistry and Molecular Biology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk 28644, Republic of Korea
| | - Jae-Hwan Lee
- Laboratory of Veterinary Biochemistry and Molecular Biology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk 28644, Republic of Korea
| | - Mi-Jin Park
- Division of Wood Chemistry and Microbiology, Department of Forest Products, National Institute of Forest Science, Seoul 02455, Republic of Korea
| | - Jae-Woo Kim
- Division of Wood Chemistry and Microbiology, Department of Forest Products, National Institute of Forest Science, Seoul 02455, Republic of Korea
| | - Jiyoon Yang
- Division of Wood Chemistry and Microbiology, Department of Forest Products, National Institute of Forest Science, Seoul 02455, Republic of Korea
| | - Yeong-Min Yoo
- Laboratory of Veterinary Biochemistry and Molecular Biology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk 28644, Republic of Korea
| | - Eui-Bae Jeung
- Laboratory of Veterinary Biochemistry and Molecular Biology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk 28644, Republic of Korea
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Park S, Jeong B, Shin JH, Kim JH, Kim JW, Gwon DI, Ko GY, Chen CS. Interventional treatment of arterial injury during blind central venous catheterisation in the upper thorax: experience from two centres. Clin Radiol 2019; 75:158.e1-158.e7. [PMID: 31711638 DOI: 10.1016/j.crad.2019.10.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 10/03/2019] [Indexed: 12/01/2022]
Abstract
AIM To evaluate the safety and clinical efficacy of interventional treatment for arterial injury during blind, central venous catheterisation in the upper thorax at two tertiary medical centres. MATERIALS AND METHODS Eighteen consecutive patients (37-81 years; M:F=8:10) who underwent interventional treatment for the arterial injuries that occurred during central venous catheterisation without any imaging guidance between November 2007 and December 2018 were included. Clinical data, angiographic findings, detailed interventional procedures, and technical and clinical outcomes were analysed retrospectively. RESULTS Arterial injury sites were the subclavian artery/branches (n=12), axillary artery/branches (n=2), and common carotid artery (n=4). The target vein was not correlated with the corresponding artery/branches in eight patients (44.4%); internal jugular vein to subclavian artery branches. Angiographic findings were pseudoaneurysm (66.7%, 12/18), contrast medium extravasation (22.2%, 4/18), or both (11.1%, n=2). A stent graft was inserted for the main trunk injuries in nine patients, with (n=2) or without (n=7) prior arterial branch embolisation to prevent potential endoleak, while embolisation for the arterial branch injuries was performed in nine patients. Direct percutaneous access with thrombin injection to the pseudoaneurysm or residual arteriovenous fistula was utilised in two. The technical and clinical success rate was 94.4% (17/18) each. There were no procedure-related complications. In one patient without immediate clinical success, there was a persistent pseudoaneurysm after stent graft placement, which was treated with in-stent balloon dilation. CONCLUSION Interventional treatment serves as a safe and effective treatment modality for inadvertent arterial injury related to blind, central venous access catheterisation in the upper thorax.
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Affiliation(s)
- S Park
- Department of Radiology, Gachon University Gil Medical Centre, 21, Namdong-daero 774beon-gil, Namdong-gu, Incheon, South Korea
| | - B Jeong
- Department of Radiology and Research Institute of Radiology, Asan Medical Centre, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, South Korea
| | - J H Shin
- Department of Radiology and Research Institute of Radiology, Asan Medical Centre, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, South Korea.
| | - J H Kim
- Department of Radiology, Gachon University Gil Medical Centre, 21, Namdong-daero 774beon-gil, Namdong-gu, Incheon, South Korea
| | - J W Kim
- Department of Radiology and Research Institute of Radiology, Asan Medical Centre, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, South Korea
| | - D I Gwon
- Department of Radiology and Research Institute of Radiology, Asan Medical Centre, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, South Korea
| | - G-Y Ko
- Department of Radiology and Research Institute of Radiology, Asan Medical Centre, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, South Korea
| | - C S Chen
- Department of Radiology, The Affiliated Cancer Hospital of Zhengzhou University, 1 Jianshe E Rd, Erqi Qu, Zhengzhou Shi, Henan Sheng, PR China
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