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Han JH, Jo K. Development of a digital star-shot analysis system for comparing radiation and imaging isocenters of proton treatment machine. J Appl Clin Med Phys 2024; 25:e14320. [PMID: 38454657 PMCID: PMC11087181 DOI: 10.1002/acm2.14320] [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: 09/12/2023] [Revised: 01/16/2024] [Accepted: 02/22/2024] [Indexed: 03/09/2024] Open
Abstract
PURPOSE To directly compare the radiation and imaging isocenters of a proton treatment machine, we developed and evaluated a real-time radiation isocenter verification system. METHODS The system consists of a plastic scintillator (PI-200, Mitsubishi Chemical Corporation, Tokyo, Japan), an acrylic phantom, a steel ball on the detachable plate, Raspberry Pi 4 (Raspberry Pi Foundation, London, UK) with camera module, and analysis software implemented through a Python-based graphical user interface (GUI). After kV imaging alignment of the steel ball, the imaging isocenter defined as the position of the steel ball was extracted from the optical image. The proton star-shot was obtained by optical camera because the scintillator converted proton beam into visible light. Then the software computed both the minimum circle radius and the radiation isocenter position from the star-shot. And the deviation between the imaging isocenter and radiation isocenter was calculated. We compared our results with measurements obtained by Gafchromic EBT3 film (Ashland, NJ, USA). RESULTS The minimum circle radii were averaged 0.29 and 0.41 mm while the position deviations from the radiation isocenter to the laser marker were averaged 0.99 and 1.07 mm, for our system and EBT3 film, respectively. Furthermore, the average position difference between the radiation isocenter and imaging isocenter was 0.27 mm for our system. Our system reduced analysis time by 10 min. CONCLUSIONS Our system provided automated star-shot analysis with sufficient accuracy, and it is cost-effective alternative to conventional film-based method for radiation isocenter verification.
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Affiliation(s)
- Ji Hye Han
- Department of PhysicsEwha Womans UniversitySeoulSouth Korea
| | - Kwanghyun Jo
- Department of Radiation OncologySamsung Medical CenterSeoulSouth Korea
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Han JH, Joung KH, Lee JC, Kim OS, Choung S, Kim JM, Kang YE, Yi HS, Lee JH, Ku BJ, Kim HJ. Comparative Efficacy of Rosuvastatin Monotherapy and Rosuvastatin/Ezetimibe Combination Therapy on Insulin Sensitivity and Vascular Inflammatory Response in Patients with Type 2 Diabetes Mellitus. Diabetes Metab J 2024; 48:112-121. [PMID: 38173371 PMCID: PMC10850282 DOI: 10.4093/dmj.2022.0402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 05/19/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGRUOUND Type 2 diabetes mellitus (T2DM) induces endothelial dysfunction and inflammation, which are the main factors for atherosclerosis and cardiovascular disease. The present study aimed to compare the effects of rosuvastatin monotherapy and rosuvastatin/ezetimibe combination therapy on lipid profile, insulin sensitivity, and vascular inflammatory response in patients with T2DM. METHODS A total of 101 patients with T2DM and dyslipidemia were randomized to either rosuvastatin monotherapy (5 mg/day, n=47) or rosuvastatin/ezetimibe combination therapy (5 mg/10 mg/day, n=45) and treated for 12 weeks. Serum lipids, glucose, insulin, soluble intercellular adhesion molecule-1 (sICAM-1), and peroxiredoxin 4 (PRDX4) levels were determined before and after 12 weeks of treatment. RESULTS The reduction in low density lipoprotein cholesterol (LDL-C) by more than 50% from baseline after treatment was more in the combination therapy group. The serum sICAM-1 levels increased significantly in both groups, but there was no difference between the two groups. The significant changes in homeostasis model assessment of insulin resistance (HOMA-IR) and PRDX4 were confirmed only in the subgroup in which LDL-C was reduced by 50% or more in the combination therapy group. However, after adjusting for diabetes mellitus duration and hypertension, the changes in HOMA-IR and PRDX4 were not significant between the two groups. CONCLUSION Although rosuvastatin/ezetimibe combination therapy had a greater LDL-C reduction effect than rosuvastatin monotherapy, it had no additional effects on insulin sensitivity and vascular inflammatory response. Further studies are needed on the effect of long-term treatment with ezetimibe on insulin sensitivity and vascular inflammatory response.
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Affiliation(s)
- Ji Hye Han
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Korea
| | - Kyong Hye Joung
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Korea
- Division of Endocrinology and Metabolism, Department of International Medicine, Chungnam National University Sejong Hospital, Sejong, Korea
| | - Jun Choul Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Eulji University School of Medicine, Daejeon, Korea
| | - Ok Soon Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Korea
| | - Sorim Choung
- Department of Medical Science, Chungnam National University College of Medicine, Daejeon, Korea
| | - Ji Min Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Korea
- Division of Endocrinology and Metabolism, Department of International Medicine, Chungnam National University Sejong Hospital, Sejong, Korea
| | - Yea Eun Kang
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Korea
| | - Hyon-Seung Yi
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Korea
- Laboratory of Endocrinology and Immune System, Chungnam National University College of Medicine, Daejeon, Korea
| | - Ju Hee Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Korea
| | - Bon Jeong Ku
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Korea
| | - Hyun Jin Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Korea
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Wang LD, Zhang PH, Li Y, Li YH, Zhang B, Wang HJ, Wu J, Han JH, Li CN, Li N, Li XH, Ding GG, Wu ZS. [Deepening the Action on Salt Reduction in China-suggestions on strategy and implementation plan]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:1-10. [PMID: 37190746 DOI: 10.3760/cma.j.cn112150-20221205-01176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Excessive sodium/salt intake is the leading dietary risk factor for the loss of healthy life in the Chinese population. The "Healthy China 2030" Action Plan set the goal of reducing salt intake by 20% by 2030. However, salt intake in China is still at a very high level in the world, with adults reaching 11 g/d, more than twice the recommended limit of 5 g/d. The current policies and action plans of China have targeted catering workers, children, adolescents, and home chefs in salt, oil, and sugar reduction actions. However, there are still obvious deficiencies in the coordinated promotion and implementation. This study, therefore, proposed a set of comprehensive strategies (named CHRPS that is composed of communication and education, salt reduction in home cooking, salt reduction in restaurants, reducing salt content in pre-packaged food, and surveillance and evaluation) and key implementation points for further deepening the salt reduction action in China. These strategies were developed based on the main sources of dietary sodium for Chinese residents, the status of"knowledge, attitude and practice"in salt reduction, evidence of effective intervention measures, existing policies and requirements, and the salt reduction strategies of the World Health Organization and experience from some other countries. As a scientific reference, the CHRPS strategies will help the government and relevant organizations quickly implement salt reduction work and facilitate the earlier realization of China's salt reduction goal.
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Affiliation(s)
- L D Wang
- Chinese Preventive Medicine Association, Beijing 100062
| | - P H Zhang
- The George Institute for Global Health (Australia) Beijing Representative Office, Beijing 100600
| | - Y Li
- The George Institute for Global Health (Australia) Beijing Representative Office, Beijing 100600
| | - Y H Li
- Chinese Center for Health Education, Beijing 100011
| | - B Zhang
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050
| | - H J Wang
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050
| | - J Wu
- National Center for Chronic and Noncommunicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050
| | - J H Han
- Chinese Nutrition Society, Beijing 100020
| | - C N Li
- Chinese Center for Health Education, Beijing 100011
| | - N Li
- China National Center for Food Safety Risk Assessment, Beijing 100024
| | - X H Li
- People's Medical Publishing House, Beijing 100021
| | - G G Ding
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050
| | - Z S Wu
- Beijing Anzhen Hospital, Beijing Institute of Heart Lung and Blood Vessel Diseases, Capital Medical University, Beijing 100029
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Lee WH, Rho JG, Yang Y, Lee S, Kweon S, Kim HM, Yoon J, Choi H, Lee E, Kim SH, You S, Song Y, Oh YS, Kim H, Han HS, Han JH, Jung M, Park YH, Choi YS, Han S, Lee J, Choi S, Kim JW, Park JH, Lee EK, Song WK, Kim E, Kim W. Hyaluronic Acid Nanoparticles as a Topical Agent for Treating Psoriasis. ACS Nano 2022; 16:20057-20074. [PMID: 36373736 DOI: 10.1021/acsnano.2c07843] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Although conventional topical approaches for treating psoriasis have been offered as an alternative, there are still unmet medical needs such as low skin-penetrating efficacy and off-target adverse effects. A hyaluronic acid nanoparticle (HA-NP) formed by self-assembly of HA-hydrophobic moiety conjugates has been broadly studied as a nanocarrier for long-term and target-specific delivery of drugs, owing to their excellent physicochemical and biological characteristics. Here, we identify HA-NPs as topical therapeutics for treating psoriasis using in vivo skin penetration studies and psoriasis animal models. Transcutaneously administered HA-NPs were found to be accumulated and associated with pro-inflammatory macrophages in the inflamed dermis of a psoriasis mouse model. Importantly, HA-NP exerted potent therapeutic efficacy against psoriasis-like skin dermatitis in a size-dependent manner by suppressing innate immune responses and restoring skin barrier function without overt toxicity signs. The therapeutic efficacy of HA-NPs on psoriasis-like skin dermatitis was due to the outermost hydrophilic HA shell layer of HA-NPs, independent of the molecular weight of HA and hydrophobic moiety, and comparable with that of other conventional psoriasis therapeutics widely used in the clinical settings. Overall, HA-NPs have the potential as a topical nanomedicine for treating psoriasis effectively and safely.
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Affiliation(s)
- Wang Hee Lee
- Department of Molecular Science & Technology, Ajou University, Suwon16499, Republic of Korea
| | - Jun Gi Rho
- Department of Molecular Science & Technology, Ajou University, Suwon16499, Republic of Korea
- Pharmaceutical Institute, FromBIO, Suwon16681, Republic of Korea
| | - Yeyoung Yang
- Department of Molecular Science & Technology, Ajou University, Suwon16499, Republic of Korea
| | - Seulbi Lee
- Department of Molecular Science & Technology, Ajou University, Suwon16499, Republic of Korea
| | - Sohui Kweon
- Department of Molecular Science & Technology, Ajou University, Suwon16499, Republic of Korea
| | - Hyung-Mo Kim
- KIURI Research Center, Ajou University, Suwon16499, Republic of Korea
| | - Juhwan Yoon
- Department of Molecular Science & Technology, Ajou University, Suwon16499, Republic of Korea
| | - Hongseo Choi
- Department of Molecular Science & Technology, Ajou University, Suwon16499, Republic of Korea
| | - Eunyoung Lee
- Department of Molecular Science & Technology, Ajou University, Suwon16499, Republic of Korea
| | - Su Ha Kim
- Department of Molecular Science & Technology, Ajou University, Suwon16499, Republic of Korea
| | - Sohee You
- Department of Molecular Science & Technology, Ajou University, Suwon16499, Republic of Korea
| | - Yujin Song
- Department of Molecular Science & Technology, Ajou University, Suwon16499, Republic of Korea
| | - Young Soo Oh
- Cell Logistics Research Center, School of Life Sciences, Gwangju Institute of Science and Technology, Gwangju61005, Republic of Korea
| | - Hwan Kim
- GIST Central Research Facilities, Bio Imaging Laboratory, Gwangju Institute of Science and Technology, Gwangju61005, Republic of Korea
| | - Hwa Seung Han
- School of Chemical Engineering, College of Engineering, Sungkyunkwan University, Suwon16419, Republic of Korea
- Natural Product Informatics Research Center, Korea Institute of Science and Technology (KIST), Gangneung25451, Republic of Korea
| | - Ji Hye Han
- Department of Molecular Science & Technology, Ajou University, Suwon16499, Republic of Korea
| | - Myeongwoo Jung
- Department of Biochemistry, College of Medicine, The Catholic University of Korea, Seoul06591, Republic of Korea
| | - Young Hwan Park
- KIURI Research Center, Ajou University, Suwon16499, Republic of Korea
| | - Yang Seon Choi
- Department of Molecular Science & Technology, Ajou University, Suwon16499, Republic of Korea
| | - Sukyoung Han
- Department of Biochemistry, College of Medicine, The Catholic University of Korea, Seoul06591, Republic of Korea
| | - Junho Lee
- Pharmaceutical Institute, FromBIO, Suwon16681, Republic of Korea
| | - Sangdun Choi
- Department of Molecular Science & Technology, Ajou University, Suwon16499, Republic of Korea
| | - Jung-Woong Kim
- Department of Life Science, Chung-Ang University, Seoul06974, Republic of Korea
| | - Jae Hyung Park
- School of Chemical Engineering, College of Engineering, Sungkyunkwan University, Suwon16419, Republic of Korea
- Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon16419, Republic of Korea
| | - Eun Kyung Lee
- Department of Biochemistry, College of Medicine, The Catholic University of Korea, Seoul06591, Republic of Korea
| | - Woo Keun Song
- Cell Logistics Research Center, School of Life Sciences, Gwangju Institute of Science and Technology, Gwangju61005, Republic of Korea
| | - Eunha Kim
- Department of Molecular Science & Technology, Ajou University, Suwon16499, Republic of Korea
| | - Wook Kim
- Department of Molecular Science & Technology, Ajou University, Suwon16499, Republic of Korea
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Lee JH, Park OR, Yang YJ, Han JH, Jung EJ, Kim NS, Baek SY. Detection of 94 PDE-5is and Their Analogs Including N-Desmethylthiosildenafil in Various Formulations of Dietary Supplements and Food Samples Using HPLC and LC-Q-TOF/MS. J Chromatogr Sci 2022; 60:953-962. [PMID: 35535451 DOI: 10.1093/chromsci/bmac015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Indexed: 12/16/2022]
Abstract
Consumption of foods and dietary supplements (DS) adulterated with unprescribed or non-permitted phosphodiesterase-5 inhibitors (PDE-5i) and their analogs can cause serious risk to human health. This study aims to analyze 93 PDE-5i and their analogs present in adulterated foods and DS using an established and validated method involving high-performance liquid chromatography (HPLC). The method was validated in solid and liquid samples, resulting in a limit of detection and quantitation of 0.03-0.5 and 0.08-1.6 μg/mL, respectively. Using the validated method, a total of 404 samples were screened. It was found that 32% of 404 samples were illegally adulterated with PDE-5i and their analogs; moreover, 16.9% of the adulterated samples were found to contain more than three compounds. HPLC-quadrupole-time-of-flight (TOF)/mass spectrometry (MS) analysis was conducted on all the samples to confirm the detected compounds accurately based on fragmentation ion patterns. In addition, sildenafil and tadalafil were detected from the capsule shells of DS unusually. Subsequently, the detected compounds were identified and quantified using HPLC at concentrations ranging from 0.007 to 370.0 mg/g. NMR analysis was carried out to confirm the accurate chemical structure of a compound found during the TOF/MS analysis, which did not match with the 93 reference standards.; it was identified to be N-desmethylthiosildenafil. In this study, various PDE-5i compounds and their analogs were detected from low to high concentrations in a sample. Therefore, the study sheds light on the misuse of PDE-5i and their analogs in consumable products, which pose a severe threat to public health.
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Affiliation(s)
- Ji Hyun Lee
- Center for Advanced Analysis, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, 187, Osongsaengmyeong 2-ro, Osong-eup, Heungdeok-gu, Cheongju-si, Chungcheongbuk-do, 28159, Republic of Korea
| | - Ok Rim Park
- Center for Advanced Analysis, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, 187, Osongsaengmyeong 2-ro, Osong-eup, Heungdeok-gu, Cheongju-si, Chungcheongbuk-do, 28159, Republic of Korea
| | - Yoon Ji Yang
- Center for Advanced Analysis, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, 187, Osongsaengmyeong 2-ro, Osong-eup, Heungdeok-gu, Cheongju-si, Chungcheongbuk-do, 28159, Republic of Korea
| | - Ji Hye Han
- Center for Advanced Analysis, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, 187, Osongsaengmyeong 2-ro, Osong-eup, Heungdeok-gu, Cheongju-si, Chungcheongbuk-do, 28159, Republic of Korea
| | - Eun Ju Jung
- Center for Advanced Analysis, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, 187, Osongsaengmyeong 2-ro, Osong-eup, Heungdeok-gu, Cheongju-si, Chungcheongbuk-do, 28159, Republic of Korea
| | - Nam Sook Kim
- Center for Advanced Analysis, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, 187, Osongsaengmyeong 2-ro, Osong-eup, Heungdeok-gu, Cheongju-si, Chungcheongbuk-do, 28159, Republic of Korea
| | - Sun Young Baek
- Center for Advanced Analysis, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, 187, Osongsaengmyeong 2-ro, Osong-eup, Heungdeok-gu, Cheongju-si, Chungcheongbuk-do, 28159, Republic of Korea
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Park S, Han JH, Hwang J, Yon DK, Lee SW, Kim JH, Koyanagi A, Jacob L, Oh H, Kostev K, Dragioti E, Radua J, Eun HS, Shin JI, Smith L. The global burden of sudden infant death syndrome from 1990 to 2019: a systematic analysis from the Global Burden of Disease study 2019. QJM 2022; 115:735-744. [PMID: 35385121 DOI: 10.1093/qjmed/hcac093] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Revised: 03/26/2022] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Sudden infant death syndrome (SIDS) still remains one of the leading causes of infant death worldwide, especially in high-income countries. To date, however, there is no detailed information on the global health burden of SIDS. AIMS To characterize the global disease burden of SIDS and its trends from 1990 to 2019 and to compare the burden of SIDS according to the socio-demographic index (SDI). DESIGN Systematic analysis based on the Global Burden of Disease (GBD) 2019 data. METHODS Epidemiological data of 204 countries from 1990 to 2019 were collected via various methods including civil registration and vital statistics in the original GBD study. Estimates for mortality and disease burden of SIDS were modeled. Crude mortality and mortality rates per 100 000 population were analyzed. Disability-adjusted life years (DALYs) and DALY rates were also assessed. RESULTS In 2019, mortality rate of SIDS accounted for 20.98 [95% Uncertainty Interval, 9.15-46.16] globally, which was a 51% decrease from 1990. SIDS was most prevalent in Western sub-Saharan Africa, High-income North America and Oceania in 2019. The burden of SIDS was higher in males than females consistently from 1990 to 2019. Higher SDI and income level was associated with lower burden of SIDS; furthermore, countries with higher SDI and income had greater decreases in SIDS burden from 1990 to 2019. CONCLUSIONS The burden of SIDS has decreased drastically from 1990 to 2019. However, the improvements have occurred disproportionately between regions and SDI levels. Focused preventive efforts in under-resourced populations are needed.
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Affiliation(s)
- S Park
- From the Yonsei College of Medicine, Seoul, 03722, Republic of Korea
| | - J H Han
- Department of Pediatrics, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - J Hwang
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, 21205, USA
| | - D K Yon
- Center for Digital Health, Medical Science Research Institute, Kyung Hee University College of Medicine, Seoul, 02447, Republic of Korea
| | - S W Lee
- Department of Data Science, Sejong University College of Software Convergence, Seoul, 05006, Republic of Korea
- Department of Precision Medicine, Sungkyunkwan University School of Medicine, Suwon, 16419, Republic of Korea
| | - J H Kim
- Department of Pediatrics, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - A Koyanagi
- Department of Research and Development Unit, Parc Sanitari Sant Joan de Deu/CIBERSAM, Universitat de Barcelona, Fundacio Sant Joan de Deu, Sant Boi de Llobregat, Barcelona, 08830, Spain
- Life and Medical Sciences, ICREA, Pg. Lluis Companys 23, Barcelona, 08010, Spain
| | - L Jacob
- Department of Research and Development Unit, Parc Sanitari Sant Joan de Deu/CIBERSAM, Universitat de Barcelona, Fundacio Sant Joan de Deu, Sant Boi de Llobregat, Barcelona, 08830, Spain
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, 28029, Spain
- Faculty of Medicine, University of Versailles Saint-Quentin-en-Yvelines, Montigny-le-Bretonneux, 78180, France
| | - H Oh
- School of Social Work, University of Southern California, Los Angeles, CA, 90089, USA
| | - K Kostev
- University Clinic of Marburg, Marburg, 35043, Germany
| | - E Dragioti
- Pain and Rehabilitation Centre, and Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, 58183, Sweden
| | - J Radua
- Department of Psychosis Studies, Early Psychosis: Interventions and Clinical-detection (EPIC) Lab, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, WC2R 2LS, UK
- Imaging of Mood- and Anxiety-Related Disorders (IMARD) Group, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), CIBERSAM, Barcelona, 08036, Spain
- Department of Clinical Neuroscience, Centre for Psychiatric Research and Education, Karolinska Institutet, Stockholm, 17176, Sweden
| | - H S Eun
- Department of Pediatrics, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - J I Shin
- Department of Pediatrics, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - L Smith
- Centre for Health, Performance and Wellbeing, Anglia Ruskin University, Cambridge, CB1 1PT, UK
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Yu X, Shi ZB, Jiang M, Yu GY, Zhu YL, Yang ZC, Chen W, Zhu YR, Fang KR, Tong RH, Han JH, Zhang XR. Analysis of synthetic electron cyclotron emission from the high field side of HL-2M tokamak plasmas. Rev Sci Instrum 2022; 93:083518. [PMID: 36050087 DOI: 10.1063/5.0098907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 07/26/2022] [Indexed: 06/15/2023]
Abstract
A synthetic electron cyclotron emission (ECE) diagnostic is used to interpret ECE signals from preset plasma equilibrium profiles, including magnetic field, electron density, and electron temperature. According to the simulation results, the electron temperature (Te) profile covering the harmonic overlap region can be obtained by receiving ECE signals at the high field side (HFS) of the HL-2M plasma. The third harmonic ECE at the low field side (LFS) cannot pass through the second harmonic resonance layer at the HFS unless the optical thickness (τ) of the second harmonic becomes gray (τ ≤ 2). In addition, the impact of the relativistic frequency down-shift has been evaluated and corrected. The measurable range of the HFS ECE has been calculated by scanning different parameters (electron density, temperature, and magnetic field). Higher plasma parameters allow a wider radial range of electron temperature measurements. The minimum inner measurable position can reach R = 120 cm (r/a = -0.89) when the product of core temperature (Te0) and density (ne0) is greater than 35 × 1019 keV m-3, which is extended by more than 30 cm inward compared with that of the LFS measurement. The HFS ECE will greatly improve the diagnostic ability of ECE systems on the HL-2M tokamak.
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Affiliation(s)
- X Yu
- Southwestern Institute of Physics, Chengdu 610041, China
| | - Z B Shi
- Southwestern Institute of Physics, Chengdu 610041, China
| | - M Jiang
- Southwestern Institute of Physics, Chengdu 610041, China
| | - G Y Yu
- Department of Electrical and Computer Engineering, University of California, Davis, California 95616, USA
| | - Y L Zhu
- Department of Electrical and Computer Engineering, University of California, Davis, California 95616, USA
| | - Z C Yang
- Southwestern Institute of Physics, Chengdu 610041, China
| | - W Chen
- Southwestern Institute of Physics, Chengdu 610041, China
| | - Y R Zhu
- Southwestern Institute of Physics, Chengdu 610041, China
| | - K R Fang
- Southwestern Institute of Physics, Chengdu 610041, China
| | - R H Tong
- Southwestern Institute of Physics, Chengdu 610041, China
| | - J H Han
- Sichuan University, Chengdu 610065, China
| | - X R Zhang
- Key Laboratory of Materials Modification by Beams of the Ministry of Education, School of Physics, Dalian University of Technology, Dalian 116024, China
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8
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Lee JH, Han JH, Ham HJ, Kim H, Lee J, Baek SY. Development of a method for simultaneous screening of four natural-derived steroids and their analogues used as dietary supplements via liquid chromatography-quadrupole-time of flight mass spectrometry and liquid chromatography-tandem mass spectrometry. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2022; 39:829-837. [PMID: 35420509 DOI: 10.1080/19440049.2022.2048899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Natural-derived steroids and their analogues are present in various plants and insects. To minimize the chance of missing a positive doping test and avoiding potentially serious health problems, adequate screening methods are necessary for the detection of a wide range of natural-derived steroids and their analogues in dietary supplements. In this study, an accurate and simple liquid-chromatography-tandem mass spectrometry (LC-MS/MS) method was developed and validated to determine and quantify the natural-derived steroids and their analogues according to the International Conference on Harmonization of technical Requirements for Registration of Pharmaceuticals for Human Use guidelines. The validation results indicating excellent extraction efficiency and low matrix effects show that the LC-MS/MS method is reliable for the detection of natural-derived steroids and their analogues. In addition, we established the ion fragmentation of turkesterone and ion fragmentation of four natural-derived steroids and their analogues. The validated method was applied to 60 dietary supplements purchased online and in person from international vendors in 2020. Ecdysterone and 5α-hydroxylaxogenin were detected respectively in 3 and 14 of 60 dietary supplements. Especially, a high amount of 5α-hydroxylaxogenin, an FDA-unapproved ingredient, was detected in two of dietary supplements (44.4 and 32.3 mg/g). This component should be controlled since it may cause unexpected side effects if administered excessively. Thus, this method will be helpful for the continuous control and supervision of unlicensed dietary supplements containing natural-derived steroids and their analogues.
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Affiliation(s)
- Ji Hyun Lee
- Center for Advanced Analysis, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju-si, Republic of Korea
| | - Ji Hye Han
- Center for Advanced Analysis, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju-si, Republic of Korea
| | - Hyeon Joo Ham
- Center for Advanced Analysis, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju-si, Republic of Korea
| | - Hyungil Kim
- Center for Advanced Analysis, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju-si, Republic of Korea
| | - Jongkook Lee
- College of Pharmacy, Kangwon National University, Chuncheon-si, Republic of Korea
| | - Sun Young Baek
- Center for Advanced Analysis, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju-si, Republic of Korea
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9
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Lee G, Han JH, Maeng HJ, Lim S. Addendum to: Three-Month Daily Consumption of Sugar-Sweetened Beverages Affects the Liver, Adipose Tissue, and Glucose Metabolism (J Obes Metab Syndr 2020;29:26-38). J Obes Metab Syndr 2022; 31:91. [PMID: 35273134 PMCID: PMC8987448 DOI: 10.7570/jomes22016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 03/03/2022] [Indexed: 12/03/2022] Open
Affiliation(s)
- Ghayoung Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Ji Hye Han
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Hyo Jin Maeng
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Soo Lim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
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10
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Haseeb M, Javaid N, Yasmeen F, Jeong U, Han JH, Yoon J, Seo JY, Heo JK, Shin HC, Kim MS, Kim W, Choi S. Novel Small-Molecule Inhibitor of NLRP3 Inflammasome Reverses Cognitive Impairment in an Alzheimer's Disease Model. ACS Chem Neurosci 2022; 13:818-833. [PMID: 35196855 DOI: 10.1021/acschemneuro.1c00831] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Aberrant activation of the Nod-like receptor family pyrin domain-containing 3 (NLRP3) inflammasome plays an essential role in multiple diseases, including Alzheimer's disease (AD) and psoriasis. We report a novel small-molecule inhibitor, NLRP3-inhibitory compound 7 (NIC7), and its derivative, which inhibit NLRP3-mediated activation of caspase 1 along with the secretion of interleukin (IL)-1β, IL-18, and lactate dehydrogenase. We examined the therapeutic potential of NIC7 in a disease model of AD by analyzing its effect on cognitive impairment as well as the expression of dopamine receptors and neuronal markers. NIC7 significantly reversed the associated disease symptoms in the mice model. On the other hand, NIC7 did not reverse the disease symptoms in the imiquimod (IMQ)-induced disease model of psoriasis. This indicates that IMQ-based psoriasis is independent of NLRP3. Overall, NIC7 and its derivative have therapeutic prospects to treat AD or NLRP3-mediated diseases.
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Affiliation(s)
- Muhammad Haseeb
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Korea
- S&K Therapeutics, Ajou University Campus Plaza 418, 199 Worldcup-ro, Yeongtong-gu, Suwon 16502, Korea
| | - Nasir Javaid
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Korea
| | - Farzana Yasmeen
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Korea
| | - Uisuk Jeong
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Korea
- S&K Therapeutics, Ajou University Campus Plaza 418, 199 Worldcup-ro, Yeongtong-gu, Suwon 16502, Korea
| | - Ji Hye Han
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Korea
| | - Juhwan Yoon
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Korea
| | - Jee Yeon Seo
- Whan In Pharmaceutical Co., Ltd., 11, Beobwon-ro 6-gil, Songpa-gu, Seoul 05855, Korea
| | - Jae Kyung Heo
- Whan In Pharmaceutical Co., Ltd., 11, Beobwon-ro 6-gil, Songpa-gu, Seoul 05855, Korea
| | - Ho Chul Shin
- Whan In Pharmaceutical Co., Ltd., 11, Beobwon-ro 6-gil, Songpa-gu, Seoul 05855, Korea
| | - Moon Suk Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Korea
| | - Wook Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Korea
| | - Sangdun Choi
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Korea
- S&K Therapeutics, Ajou University Campus Plaza 418, 199 Worldcup-ro, Yeongtong-gu, Suwon 16502, Korea
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11
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Abstract
Obesity is associated with chronic inflammation in insulin-sensitive tissues, including liver and adipose tissue, and causes hormonal/metabolic complications, such as insulin resistance. There is growing evidence that peripheral cannabinoid-type 1 receptor (CB1R) is a crucial participant in obesity-induced pro-inflammatory responses in insulin-target tissues, and its selective targeting could be a novel therapeutic strategy to break the link between insulin resistance and metabolic inflammation. In this review, we introduce the role of peripheral CB1R in metabolic inflammation and as a mediator of hormonal/metabolic complications that underlie metabolic syndrome, including fatty liver, insulin resistance, and dyslipidemia. We also discuss the therapeutic potential of second- and third-generation peripherally restricted CB1R antagonists for treating obesity-induced metabolic inflammation without eliciting central CB1R-mediated neurobehavioral effects, predictive of neuropsychiatric side effects, in humans.
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Affiliation(s)
- Ji Hye Han
- Department of Molecular Science & Technology, Ajou University, Suwon, South Korea
| | - Wook Kim
- Department of Molecular Science & Technology, Ajou University, Suwon, South Korea
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12
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Kim HO, Kim JC, Chung BY, Kang SY, Park CW, Han JH. Harlequin syndrome with petechiae caused by a pituitary adenoma. J Eur Acad Dermatol Venereol 2021; 35:e605-e607. [PMID: 33974308 DOI: 10.1111/jdv.17338] [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: 11/29/2022]
Affiliation(s)
- H O Kim
- Department of Dermatology, Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - J C Kim
- Department of Dermatology, Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - B Y Chung
- Department of Dermatology, Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - S Y Kang
- Department of Dermatology, Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - C W Park
- Department of Dermatology, Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - J H Han
- Department of Neurosurgery, Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
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13
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Lee JH, Han JH, Jung EJ, Nallapaneni HK, Kim NS, Kim H, Lee J, Baek SY. Development and validation of liquid chromatography-tandem mass spectrometry method for screening six selective androgen receptor modulators in dietary supplements. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2021; 38:1075-1086. [PMID: 33934684 DOI: 10.1080/19440049.2021.1906954] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Selective androgen receptor modulators (SARMs) are compounds with specific androgenic properties that have been investigated for the treatment of conditions such as muscle wasting disease. The reported androgenic properties have resulted in their use by athletes, and consequently they have been on the World Anti-Doping Agency prohibited list for more than a decade. To minimise the chance of an unattended positive doping test and to avoid potential serious health problems, adequate screening methods for the detection of a wide range of SARMs in these supplements is necessary. In this study, a rapid and accurate liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed and validated simultaneously to screen and quantify six SARMs in dietary supplements, with confirmation by liquid chromatography-quadrupole-time of flight mass spectrometry (LC-Q-TOF/MS). The validated method was applied to 60 dietary supplements obtained by on-line and direct purchase from international vendors in 2020. Various SARMs were detected at high concentrations in 20 products which were advertised as having androgenic properties. For example, andarine was present at 7.2% in one product, and GW501516 was found at 3.49% in the another product. Furthermore, MK-677 and YK-11, not disclosed on the label, were detected in some products. YK-11 is easily hydrolysed in just a few hours. Although YK-11 is particularly unstable, such that the protonated ion [M + H]+ at m/z 431 for YK-11 was not detected, mass fragmentation, and a [M+ Na]+ ion at m/z 453.3 confirmed the presence of YK-11. Additionally, hydrolysed YK-11 under acidic conditions was confirmed by NMR spectral data, and 1H NMR and 13C NMR spectral data for YK-11 were in good agreement with literature data. This rapid and accurate LC-MS/MS method can therefore be successfully applied to screen and identify SARMs for the continuous control and supervision of dietary supplements.
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Affiliation(s)
- Ji Hyun Lee
- Center for Advanced Analysis, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju-si, Republic of Korea
| | - Ji Hye Han
- Center for Advanced Analysis, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju-si, Republic of Korea
| | - Eun-Ju Jung
- Center for Advanced Analysis, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju-si, Republic of Korea
| | | | - Nam Sook Kim
- Center for Advanced Analysis, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju-si, Republic of Korea
| | - Hyungil Kim
- Center for Advanced Analysis, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju-si, Republic of Korea
| | - Jongkook Lee
- College of Pharmacy, Kangwon National University, Chuncheon-si, Republic of Korea
| | - Sun Young Baek
- Center for Advanced Analysis, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju-si, Republic of Korea
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14
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Lee JH, Min AY, Park OR, Han JH, Yang YJ, Kim H, Baek SY. Detection of 94 compounds related to sexual enhancement including sildenafil, tadalafil, vardenafil and their analogues in various formulations of dietary supplements and food samples using HPLC and LC-MS/MS. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2021; 38:769-781. [PMID: 33818311 DOI: 10.1080/19440049.2021.1881623] [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] [Indexed: 10/21/2022]
Abstract
With an increase in the detection of structural and functional analogues of phosphodiesterase type 5 inhibitors (PDE-5i) in dietary supplements (DS) and foods, public health is threatened. Some products advertise natural ingredients despite containing PDE-5i that can cause serious adverse effects on human health. To avoid detection during routine screening, novel PDE-5i have been synthesised and added to DS and foods. The purpose of this study was to detect, identify, and quantify 94 PDE-5i and related compounds in DS and foods. Furthermore, the study investigated the detection cases and compared them by sample type, formulation, and compounds. The HPLC and LC-MS/MS methods were validated for limit of detection (LOD), limit of quantification (LOQ), linearity, and recovery in solid and liquid type samples. Both HPLC and LC-MS/MS showed satisfactory results, which were in conformance with the ICH guidelines. A total of 404 samples, including DS (99), and foods (305) were purchased from online and offline markets. Samples divided into 5 types of formulation were analysed; tablet, capsule, pilula (herbal medicine pill), powder and liquid type. Of these 130 samples (47 of 99 DS, and 83 of 305 foods) contained one or more PDE-5i or related compounds. Among the five types of formulation, the tablet type showed the highest detection rate (61.1%) in DS, whereas the capsule type showed the highest detection rate (53.8%) in food samples. This study will be helpful for monitoring illegal ED-related products, providing information to consumers, and ultimately contributing to protecting public health.
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Affiliation(s)
- Ji Hyun Lee
- Center for Advanced Analysis, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju-si, Republic of Korea
| | - A Young Min
- Center for Advanced Analysis, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju-si, Republic of Korea
| | - Ok Rim Park
- Center for Advanced Analysis, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju-si, Republic of Korea
| | - Ji Hye Han
- Center for Advanced Analysis, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju-si, Republic of Korea
| | - Yoon Ji Yang
- Center for Advanced Analysis, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju-si, Republic of Korea
| | - Hyungil Kim
- Center for Advanced Analysis, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju-si, Republic of Korea
| | - Sun Young Baek
- Center for Advanced Analysis, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju-si, Republic of Korea
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15
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Park B, Bang CH, Lee C, Han JH, Choi W, Kim J, Park GS, Rhie JW, Lee JH, Kim C. 3D wide-field multispectral photoacoustic imaging of human melanomas in vivo: a pilot study. J Eur Acad Dermatol Venereol 2020; 35:669-676. [PMID: 33037671 DOI: 10.1111/jdv.16985] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 09/22/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND The Breslow depth is an important parameter to determine the excision margin and prognosis of melanoma. However, it is difficult to accurately determine the actual Breslow depth before surgery using the existing ocular micrometer and biopsy technique. OBJECTIVES To evaluate the use of 3D wide-field multispectral photoacoustic imaging to non-invasively measure depth and outline the boundary of melanomas for optimal surgical margin selection. METHODS Six melanoma patients were examined in vivo using the 3D multispectral photoacoustic imaging system. For five cases of melanomas (one in situ, three nodular, and one acral lentiginous type melanoma), the spectrally unmixed photoacoustic depths were calculated and compared against histopathological depths. RESULTS Spectrally unmixed photoacoustic depths and histopathological depths match well within a mean absolute error of 0.36 mm. In particular, the measured minimum and maximum depths in the in situ and nodular type of melanoma were 0.6 and 9.1 mm, respectively. In the 3D photoacoustic image of one metastatic melanoma, feeding vessels were visualized in the melanoma, suggesting the neovascularization around the tumour. CONCLUSIONS The 3D multispectral photoacoustic imaging not only provides well-measured depth and sizes of various types of melanomas, it also visualizes the metastatic type of melanoma. Obtaining accurate depth and boundary information of melanoma before surgery would play a useful role in the complete excision of melanoma during surgery.
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Affiliation(s)
- B Park
- Departments of Electrical Engineering, Creative IT Engineering, Mechanical Engineering, and Medical Device Innovation Center, Pohang University of Science and Technology (POSTECH), Pohang, Korea
| | - C H Bang
- Department of Dermatology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - C Lee
- Departments of Electrical Engineering, Creative IT Engineering, Mechanical Engineering, and Medical Device Innovation Center, Pohang University of Science and Technology (POSTECH), Pohang, Korea
| | - J H Han
- Department of Dermatology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - W Choi
- Departments of Electrical Engineering, Creative IT Engineering, Mechanical Engineering, and Medical Device Innovation Center, Pohang University of Science and Technology (POSTECH), Pohang, Korea
| | - J Kim
- Departments of Electrical Engineering, Creative IT Engineering, Mechanical Engineering, and Medical Device Innovation Center, Pohang University of Science and Technology (POSTECH), Pohang, Korea.,Department of Cogno-Mechatronics Engineering, College of Nanoscience & Nanotechnology, Pusan National University, Busan, Korea
| | - G S Park
- Department of Pathology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - J W Rhie
- Department of Plastic and Reconstructive Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - J H Lee
- Department of Dermatology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - C Kim
- Departments of Electrical Engineering, Creative IT Engineering, Mechanical Engineering, and Medical Device Innovation Center, Pohang University of Science and Technology (POSTECH), Pohang, Korea
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16
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Sung SY, Chae YN, Lee DY, Kim KM, Kim EJ, Han JH, Kim W, Yoon SH. Synthesis and Evaluation of Dapagliflozin Ester Prodrugs with Improved Hygroscopicity and Thermal Stability. LETT DRUG DES DISCOV 2020. [DOI: 10.2174/1570180817999200618162949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Dapagliflozin, developed as an SGLT-2 inhibitor, has a low melting point
and high hygroscopicity, which needs extreme care during pharmaceutical production to keep the
active pharmacological property. Various attempts have been made to overcome these problematic
properties.
Objectives:
To develop dapagliflozin prodrugs that have similar pharmacological effects with improved
hygroscopicity and thermal stability.
Methods:
The novel dapagliflozin ester prodrugs containing pharmaceutically acceptable moieties
were synthesized and their pharmacokinetics (PK) and physical properties were compared with
dapagliflozin propanediol hydrate (DPD, Farxiga®). The PK in dog and rat, in vitro stability, hygroscopicity,
and physical property studies in accelerated conditions (40°C, 75% RH) were performed
with prodrugs.
Results and Discussion:
Among the eight synthesized prodrugs, Cmax and AUC0-48h values of prodrug
8b (1.35 μg/ml and 14.78 μg·h/ml, respectively) were similar to those of DPD (1.67 μg/ml and
14.27 μg·h/ml, respectively). However, the rest of the prodrugs 8a, 8c, 8d, 8e, 8f, 8g and 8h showed
significantly lower Cmax and AUC0-48h values than DPD. Prodrug 8b completely converted into parent
drug in the body.
Conclusion:
The novel prodrug 8b exhibited comparative PK profile to that of DPD, but with low
hygroscopic property and better thermal stability than DPD.
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Affiliation(s)
- Si Young Sung
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, South Korea
| | - Yu Na Chae
- Research Institute, Dong -A ST Co., Ltd., Yongin 17073, South Korea
| | - Dae Young Lee
- Research Institute, Dong -A ST Co., Ltd., Yongin 17073, South Korea
| | - Kyeong Min Kim
- Research Institute, Dong -A ST Co., Ltd., Yongin 17073, South Korea
| | - Eun Jung Kim
- Research Institute, Dong -A ST Co., Ltd., Yongin 17073, South Korea
| | - Ji Hye Han
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, South Korea
| | - Wook Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, South Korea
| | - Sung-Hwa Yoon
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, South Korea
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17
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Lee JH, Han JH, Min AY, Kim H, Shin D. Screening for twenty-eight target anabolic-androgenic steroids in protein supplements using QuEChERS extraction followed by liquid chromatography-tandem mass spectrometry. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2020; 37:1425-1436. [PMID: 32569530 DOI: 10.1080/19440049.2020.1773543] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Anabolic-androgenic steroids (AASs) are very potent muscle builders, and professional sportsmen often take protein supplements to improve their performance. Several studies have emphasised that protein supplements may contain undeclared AASs banned by the International Olympic Committee/World Anti-Doping Agency. The widespread occurrence and abuse of contaminated protein supplements is extremely dangerous because of their side effects. To minimise the chances of an unattended positive doping test or to avoid serious health problems, adequate screening methods for the detection of a wide range of steroids is essential. To address this requirement, a rapid and effective modified QuEChERS (quick, easy, cheap, effective, rugged and safe) method was developed and validated to screen and quantify the simultaneous analysis of twenty-eight AASs in protein supplements using LC-MS/MS. The validated method was applied to 198 protein supplements collected from on-line and, off-line markets, and direct purchase from overseas between 2019 and 2020. Of the 198 samples, two samples contained testosterone and stanozolol at concentrations of 0.27 μg/g and 0.023 μg/g, respectively. In addition, 5α-hydroxylaxogenin was detected for the first time in three products purchased in Korea from overseas. The modified QuEChERS method was established and successfully applied to screen and determine AASs as a measure of continuous control and supervision in protein supplements.
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Affiliation(s)
- Ji Hyun Lee
- Division of Advanced Analysis, Toxicological Evaluation and Research Department, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety , Osong-eup, Cheongju-si, Chungcheongbuk-do, Republic of Korea
| | - Ji Hye Han
- Division of Advanced Analysis, Toxicological Evaluation and Research Department, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety , Osong-eup, Cheongju-si, Chungcheongbuk-do, Republic of Korea
| | - A Young Min
- Division of Advanced Analysis, Toxicological Evaluation and Research Department, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety , Osong-eup, Cheongju-si, Chungcheongbuk-do, Republic of Korea
| | - Hyungil Kim
- Division of Advanced Analysis, Toxicological Evaluation and Research Department, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety , Osong-eup, Cheongju-si, Chungcheongbuk-do, Republic of Korea
| | - Dongwoo Shin
- Division of Advanced Analysis, Toxicological Evaluation and Research Department, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety , Osong-eup, Cheongju-si, Chungcheongbuk-do, Republic of Korea
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18
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Lee HN, Yoo JY, Han JH, Park YS, Jung DY, Park JH. Transcultural Adaptation and Validation of the Korean Version of the Vocal Tract Discomfort Scale. J Voice 2020; 36:143.e15-143.e23. [PMID: 32576525 DOI: 10.1016/j.jvoice.2020.04.030] [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: 02/14/2020] [Revised: 04/27/2020] [Accepted: 04/28/2020] [Indexed: 10/24/2022]
Abstract
OBJECTIVES The present study translated the Vocal Tract Discomfort Scale (VTDS) into Korean (K-VTDS) and evaluated its reliability and validity. STUDY DESIGN This was a prospective study. METHODS The VTDS was first translated into Korean and validated. One hundred and fifty-nine patients with voice disorders were divided into three different diagnostic groups (functional, structural, and neurologic voice disorder) and 131 vocally healthy adults were also included. All participants completed the K-VTDS and the Korean version of the Voice Handicap Index (K-VHI) and Korean versions of the Voice-Related Quality of Life (K-VRQOL). The internal consistency of the K-VTDS was analyzed through Cronbach's α coefficient. The VTDS score differences related to the diagnostic groups were assessed with t test and analysis of variance. We assessed the correlation between the K-VTDS, the K-VHI, and the K-VRQOL using Pearson's correlation analysis. RESULTS High internal consistency and the test-retest reliability of the K-VTDS were found. The voice disorder group had significantly higher K-VTDS scores for the subscales and total scores than those in the healthy group (P < 0.001). The K-VTDS scores for the subscale of frequency and total scores were highest in the functional voice disorder group. We found a significant difference in frequency and total score of the K-VTDS between the functional voice disorder group and the structural voice disorder group (P < 0.05). We observed a strong positive correlation among the scores for the subscales of frequency and severity, and total scores in the K-VTDS. The K-VTDS showed moderate correlation with the K-VHI and the K-VRQOL. CONCLUSION The K-VTDS is a reliable and valid instrument for voice assessment for voice disorders in Korean-speaking patients.
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Affiliation(s)
- Ha Na Lee
- Department of Otorhinolaryngology - Head and Neck Surgery, Chosun University Chosun Hospital, Gwangju, South Korea
| | - Jae Yeon Yoo
- Department of Speech Language Pathology, Honam University, Gwangju, South Korea
| | - Ji Hye Han
- Department of Otorhinolaryngology - Head and Neck Surgery, Chosun University College of Medicine, Gwangju, South Korea
| | - Yoon Sik Park
- Department of Otorhinolaryngology - Head and Neck Surgery, Chosun University College of Medicine, Gwangju, South Korea
| | - Do Yoon Jung
- Department of Otorhinolaryngology - Head and Neck Surgery, Chosun University College of Medicine, Gwangju, South Korea
| | - Jun Hee Park
- Department of Otorhinolaryngology - Head and Neck Surgery, Chosun University College of Medicine, Gwangju, South Korea.
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Lee JH, Min AY, Han JH, Yang YJ, Kim H, Shin D. Development and validation of LC-MS/MS method with QuEChERS clean-up for detecting cannabinoids in foods and dietary supplements. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2020; 37:1413-1424. [PMID: 32530793 DOI: 10.1080/19440049.2020.1769200] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
a rapid and simple liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed and validated for the determination of cannabidiol (CBD) and Δ9-tetrahydrocannabinol (THC) using a QuEChERS (Quick, Easy, Cheap, Effective, Rugged, and Safe) clean-up for a variety of foods and dietary supplements (DS). QuEChERS is widely used in extraction or clean-up procedures to eliminate interference of matrices such as sugars, organic acids, lipids, and fatty acids. The samples were categorised into three types, and various pretreatment methods were compared for each type. In all types, the QuEChERS was superior and selected as the final pretreatment method. The optimised method was validated for specificity, limit of detection (LOD), limit of quantification (LOQ), linearity, recovery, precision and accuracy. All of the validation results met the requirements of the international guidelines for all types of samples. The validated method was applied to 30 commercial food samples, CBD was detected in 17 samples, with 2 of them detected below the LOQ level and the rest detected in a range of 70 μg/kg to 31305 mg/kg (3.1%, w/w). Meanwhile, THC was detected in 14 samples; 2 of them were detected below the LOQ level and the rest detected in a 0.08-98.62 μg/g range. These results indicated that the validated method can be successfully applied for the determination of cannabinoids in a variety of samples. Furthermore, it will be useful for controlling the illegal distribution of cannabinoids.
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Affiliation(s)
- Ji Hyun Lee
- Division of Advanced Analysis, Toxicological Evaluation and Research Department, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety , Cheongju-si, Republic of Korea
| | - A Young Min
- Division of Advanced Analysis, Toxicological Evaluation and Research Department, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety , Cheongju-si, Republic of Korea
| | - Ji Hye Han
- Division of Advanced Analysis, Toxicological Evaluation and Research Department, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety , Cheongju-si, Republic of Korea
| | - Yoon Ji Yang
- Division of Advanced Analysis, Toxicological Evaluation and Research Department, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety , Cheongju-si, Republic of Korea
| | - Hyungil Kim
- Division of Advanced Analysis, Toxicological Evaluation and Research Department, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety , Cheongju-si, Republic of Korea
| | - Dongwoo Shin
- Division of Advanced Analysis, Toxicological Evaluation and Research Department, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety , Cheongju-si, Republic of Korea
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Han JH, Yi DW, Lee J, Chang WD, Lee HJ. Development of a Smartphone-Based Digits-in-Noise Test in Korean: a Hearing Screening Tool for Speech Perception in Noise. J Korean Med Sci 2020; 35:e163. [PMID: 32476302 PMCID: PMC7261694 DOI: 10.3346/jkms.2020.35.e163] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 03/22/2020] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND The digits-in-noise (DiN) test is a speech-in-noise test to measure speech recognition threshold in noise adaptively. Herein, we aimed to develop the Korean version of the DiN test to provide a useful hearing screening tool for clinical as well as research purposes. METHOD Spoken monosyllabic digits from 0 to 9 were recorded by a female speaker. The test list was constructed such that each digit was placed in three different positions. An optimization procedure was conducted to equate the audibility of each digit. After the optimization, the smartphone application for the Korean DiN (K-DiN) test was developed. For the adaptive measurement procedure, 180 new DiN triplets separated into six lists of 30 were created. Mean speech recognition threshold values for each list and session were measured to examine the test-retest and training effects of the test materials. In addition, speech recognition threshold values measured by different devices were compared to determine whether the speech recognition threshold levels differed. RESULTS Optimization results showed that the mean speech recognition threshold and slope were ?11.55 dB signal-to-noise ratio and 10.21%/dB, respectively, which are comparable to levels shown in different-language versions of the DiN test. The results of the test-retest and training effects revealed no significant differences among the test sessions and lists. Additionally, the mean speech recognition threshold values measured by four different devices were not different, indicating the reliability of the test materials. CONCLUSION We believe this study is the first to attempt to develop a K-DiN test. Our results indicate that this test can be used as a potentially reliable hearing screening tool.
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Affiliation(s)
- Ji Hye Han
- Laboratory of Brain & Cognitive Sciences for Convergence Medicine, Hallym University College of Medicine, Anyang, Korea
| | - Dong Woon Yi
- Laboratory of Brain & Cognitive Sciences for Convergence Medicine, Hallym University College of Medicine, Anyang, Korea
| | - Jihyun Lee
- Laboratory of Brain & Cognitive Sciences for Convergence Medicine, Hallym University College of Medicine, Anyang, Korea
| | - Won Du Chang
- Department of Computer Engineering, Pukyong National University, Busan, Korea
| | - Hyo Jeong Lee
- Laboratory of Brain & Cognitive Sciences for Convergence Medicine, Hallym University College of Medicine, Anyang, Korea
- Department of Otorhinolaryngology-Head and Neck Surgery, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea.
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Han JH, Kim W. Macrophage cannabinoid 1 receptor promotes obesity-induced insulin resistance and inflammation. The Journal of Immunology 2020. [DOI: 10.4049/jimmunol.204.supp.59.11] [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: 01/05/2023]
Abstract
Abstract
NLRP3 inflammasome plays a crucial role in immune responses, promoting the maturation of proinflammatory cytokines interleukin 1β (IL-1β) and IL-18, and has been associated with a variety of inflammatory conditions, including obesity and type 2 diabetes. Our recent studies have figured that inhibition of cannabinoid 1 receptor (CB1R) improves metabolic abnormalities and suppresses macrophage infiltration into white adipose tissue, activation of NLRP3 inflammasome, and production of proinflammatory cytokines. Macrophages are implicated in this process. To test the role of CB1R, we established mice with selective CB1R-defeciency in macrophages (MacCB1R KO). We investigate that feeding a Western-type diet to control and MacCB1R KO mice caused similar obesity, but only mice with MacCB1R KO remained insulin sensitive. The protection of mice with macrophage-specific CB1R-deficiency against insulin resistance was associated with reduced tissue infiltration by macrophages. Immunophenotypic parameters have been proved that CB1R is involved for pro-inflammatory macrophage polarization. These studies demonstrated that CB1R in macrophages is associated to establish obesity-induced insulin resistance and inflammation.
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Lee G, Han JH, Maeng HJ, Lim S. Three-Month Daily Consumption of Sugar-Sweetened Beverages Affects the Liver, Adipose Tissue, and Glucose Metabolism. J Obes Metab Syndr 2020; 29:26-38. [PMID: 32045514 PMCID: PMC7118004 DOI: 10.7570/jomes19042] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 08/26/2019] [Accepted: 10/04/2019] [Indexed: 12/19/2022] Open
Abstract
Background Growing evidence suggests links between sugar-sweetened beverages (SSBs) and metabolic disorders. We investigated the effects of SSBs commonly consumed by adolescents and their relationships to glucose metabolism and fatty liver. Methods We treated 7-week old male C57BL/6 mice with water (control) or one of three different SSBs, carbonated soda (Coca-Cola), sweetened milk coffee (Maxwell), or chocolate-added cocoa (Choco-Latte), for 13 weeks (n=10 in each group). Half of the animals were fed a regular chow diet and the other half a high-fat diet (40% fat). Body composition and biochemical variables were investigated at the end of treatment. Histology of the liver and adipose tissue, as well as molecular signaling related to glucose and lipid metabolism, were also evaluated. Results During the 13-week treatment, mice treated with chocolate-added cocoa or sweetened milk coffee showed significantly greater increases in body weight compared with controls, especially when fed a high-fat diet. Fasting glucose level was higher in the three SSB-treated groups compared with the control group. Lipid droplets in the liver, fat cell size, and number of CD68-positive cells in adipose tissue were greater in the SSB-treated groups than in the control group. SSB treatments increased the expression of genes related to inflammatory processes in the liver and adipose tissue. Phosphorylation of AKT and glycogen synthase kinase in muscle was significantly reduced in SSB-treated groups. Conclusion Daily consumption of SSBs over 3 months lead to metabolic impairment and weight gain and may contribute to development of metabolic diseases.
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Affiliation(s)
- Ghayoung Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Ji Hye Han
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Hyo Jin Maeng
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Soo Lim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
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Ham HJ, Han JH, Lee YS, Kim KC, Yun J, Kang SK, Park Y, Kim SH, Hong JT. Bee Venom Soluble Phospholipase A2 Exerts Neuroprotective Effects in a Lipopolysaccharide-Induced Mouse Model of Alzheimer's Disease via Inhibition of Nuclear Factor-Kappa B. Front Aging Neurosci 2019; 11:287. [PMID: 31736738 PMCID: PMC6839038 DOI: 10.3389/fnagi.2019.00287] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 07/13/2019] [Accepted: 10/07/2019] [Indexed: 01/04/2023] Open
Abstract
Neuroinflammation is important in the pathogenesis and development of Alzheimer's disease (AD). In the AD brain, microglial activation and upregulation of pro-inflammatory mediators both induce amyloid beta (Aβ) accumulation. Regulatory T cells (Tregs) and nuclear factor-kappa B (NF-κB) signaling have been implicated in AD development through their effects on neuroinflammation and microglial activation. The bee venom soluble phospholipase A2 (bv-sPLA2) enzyme is known to exert anti-inflammatory and anti-immune effects. Here, we investigated the inhibitory effects of bv-sPLA2 on memory deficiency in a lipopolysaccharide (LPS)-induced mouse model of AD. We examined whether bv-sPLA2 (0.02, 0.2, and 2 mg/kg by i.p. injection three times for 1 week) could inhibit neuroinflammation and memory impairment in LPS-treated mice (250 μg/kg by i.p. injection daily for 1 week). We also assessed the effects of bv-sPLA2 administration (0.01, 0.1, and 1 μg/ml) on LPS (1 μg/ml)-treated microglial BV-2 cells. In the LPS-injected mouse brain, sPLA2 treatment rescued memory dysfunction and decreased Aβ levels, through the downregulation of amyloidogenic proteins, and decreased the expression of inflammatory proteins and pro-inflammatory cytokines. Moreover, the LPS-mediated increase in inflammatory protein expression was attenuated bv-sPLA2 treatment in BV-2 cells. Treatment with bv-sPLA2 also downregulated signaling by NF-κB, which is considered to be an important factor in the regulation of neuroinflammatory and amyloidogenic responses, both in vivo and in vitro. Additionally, co-treatment with NF-κB (5 μM) and bv-sPLA2 (0.1 μg/ml) exerted more marked anti-inflammatory effects, compared to bv-sPLA2 treatment alone. These results indicate that bv-sPLA2 inhibits LPS-induced neuroinflammation and amyloidogenesis via inhibition of NF-κB.
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Affiliation(s)
- Hyeon Joo Ham
- College of Pharmacy and Medical Research Center, Chungbuk National University, Chungbuk, South Korea
| | - Ji Hye Han
- College of Pharmacy and Medical Research Center, Chungbuk National University, Chungbuk, South Korea
| | - Yong Sun Lee
- College of Pharmacy and Medical Research Center, Chungbuk National University, Chungbuk, South Korea
| | - Ki Cheon Kim
- College of Pharmacy and Medical Research Center, Chungbuk National University, Chungbuk, South Korea
| | - Jaesuk Yun
- College of Pharmacy and Medical Research Center, Chungbuk National University, Chungbuk, South Korea
| | - Shin Kook Kang
- College of Pharmacy and Medical Research Center, Chungbuk National University, Chungbuk, South Korea
| | - YangSu Park
- College of Pharmacy and Medical Research Center, Chungbuk National University, Chungbuk, South Korea
| | - Se Hyun Kim
- INISTst Company Limited, Gyeonggi-do, South Korea
| | - Jin Tae Hong
- College of Pharmacy and Medical Research Center, Chungbuk National University, Chungbuk, South Korea
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Han JH, Lee JP, Lee JS, Song SH, Kim KS. Fate of the micropenis and constitutional small penis: do they grow to normalcy in puberty? J Pediatr Urol 2019; 15:526.e1-526.e6. [PMID: 31447312 DOI: 10.1016/j.jpurol.2019.07.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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: 04/15/2019] [Accepted: 07/11/2019] [Indexed: 10/26/2022]
Abstract
INTRODUCTION Penile length is an important indicator of male sexual development. Scarce data were reported on penile length measurements in children comparing changes between prepuberty and puberty for the small penile issue with long-term follow-up. OBJECTIVE The purpose of this study was to investigate the possibility of catch-up growth of the penile length of boys with a small penis in the long-term follow-up. STUDY DESIGN From April 2001 to December 2016, 27 boys who visited the outpatient clinic owing to a small penis, without any chromosomal anomalies and other genital disorder, were investigated retrospectively. Micropenis is defined as 2.5 standard deviations less than the mean stretched penile length (SPL) of age. Periodic penile length, testicular volume, hormonal levels (serum testosterone, luteinizing hormone (LH), and follicle-stimulating hormone (FSH)), and bone age were measured. Pubertal development was recorded by using the Tanner scale. The effect of hormonal therapy and the factors attributable to the increment of the penile length were evaluated. RESULTS The mean age at the first visit was 9.8 years (5-12 years) and that at puberty was 12.6 years (10-16 years). The length of the penis at the initial visit was 4.0 ± 0.8 cm (2.5-6.0) and at puberty, 7.3 ± 1.8 cm (4.0-12.0). Nine patients diagnosed with micropenis no longer had a micropenis in puberty. The less the age-matched SPL, the more the increment of SPL that was observed (rho = - 0.548, P = 0.003). The mean increment of SPL in the hormonal therapy group (11 boys) and the non-hormonal therapy group (16 boys) was not statistically different (43.5 ± 22. 9% vs 41.5 ± 21.6%, respectively, P = 0.497). DISCUSSION This study explains how much the growth of a small penis catches up in puberty. From the point of view of the increment of SPL, the increment was higher in boys who belonged to the smaller penis group. Hormonal therapy does not attribute to an increase in the length after long-term follow-up. Limitations of this study were its retrospective origin with a small number of patients in a single center. CONCLUSION Catch-up growth of the small penis at puberty was accomplished in most children with a small penis before puberty. Hormonal treatment was not significantly correlated with the penile length increment in the long-term follow-up.
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Affiliation(s)
- J H Han
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Songpa-gu, Seoul 50555, South Korea
| | - J P Lee
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Songpa-gu, Seoul 50555, South Korea
| | - J S Lee
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Songpa-gu, Seoul 50555, South Korea
| | - S H Song
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Songpa-gu, Seoul 50555, South Korea
| | - K S Kim
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Songpa-gu, Seoul 50555, South Korea.
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Park SY, Lee SJ, Han JH, Koh YW. Association between 18F-FDG uptake in PET/CT, Nrf2, and NQO1 expression and their prognostic significance in non-small cell lung cancer. Neoplasma 2019; 66:619-626. [PMID: 30868898 DOI: 10.4149/neo_2018_181007n742] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Accepted: 01/15/2019] [Indexed: 11/08/2022]
Abstract
Two pentose phosphate pathway-related proteins, NF-E2-related factor 2 (Nrf2)/ NAD(P)H dehydrogenase (Quinone) 1 (NQO1) regulate the expression of glucose metabolism and antioxidant genes. We evaluated the prognostic significance of NRF2, NQO1 and 18F-fluorodeoxyglucose positron emission tomography (18F-FDG PET) parameter and their relationship with non-small cell lung cancer (NSCLC) histology. A total of 241 patients, who underwent surgical resection for NSCLC, were reviewed retrospectively. Preoperative 18F-FDG PET and immunohistochemical results of Nrf2 and NQO1 were evaluated. In SQCC, the maximum standardized uptake value (SUVmax) was significantly higher in NQO1-high than in NQO1-low expression (p=0.023). In adenocarcinoma, SUVmax was not correlated with NQO1 expression. Patients with a high NQO1 expression showed poor recurrence-free survival (RFS) and overall survival (OS) than patients with a low NQO1 expression in squamous cell carcinoma (SQCC) (p=0.002 and p=0.014, respectively). NQO1 expression was not associated with clinical outcome in adenocarcinoma. Nrf2 expression was not correlated with prognosis in two types of NSCLC. High SUVmax was associated with poor RFS (p=0.03) but is not related to poor OS (p=0.569) in SQCC. In multivariate analyses, NQO1 expression and SUVmax were not independent prognostic factors in SQCC. However, in multivariate analysis combining NQO1 and SUVmax values, both low SUVmax and low NQO1 was independent prognostic factor for RFS and OS (HR= 3.790, p = 0.033 and HR= 2.961, p = 0.045, respectively). In conclusion, both low SUVmax and low NQO1 was an independent prognostic factor in SQCC alone. The sample size was small but there was a positive correlation between NQO1 expression and SUVmax in SQCC.
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Affiliation(s)
- S Y Park
- Department of Thoracic and Cardiovascular Surgery, Yonsei University College of Medicine, Yonsei University, Seoul, South Korea
| | - S J Lee
- Department of Nuclear Medicine and Molecular Imaging, Ajou University School of Medicine, Ajou University, Suwon, South Korea
| | - J H Han
- Department of Pathology, Ajou University School of Medicine, Ajou University, Suwon, South Korea
| | - Y W Koh
- Department of Pathology, Ajou University School of Medicine, Ajou University, Suwon, South Korea
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Lee DH, Han JH, Lee YS, Jung YS, Roh YS, Yun JS, Han SB, Hong JT. Chitinase-3-like-1 deficiency attenuates ethanol-induced liver injury by inhibition of sterol regulatory element binding protein 1-dependent triglyceride synthesis. Metabolism 2019; 95:46-56. [PMID: 30935969 DOI: 10.1016/j.metabol.2019.03.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 03/22/2019] [Accepted: 03/25/2019] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Alcohol overconsumption and abuse lead to alcoholic liver disease (ALD), which is a major chronic liver disease worldwide. Chitinase-3-like protein 1 (CHI3L1) have an important role in the pathogenesis of inflammatory disease. However, the role of CHI3L1 in ALD has not yet been reported. In the present study, we investigated the effect of CHI3L1 on chronic plus binge ethanol-induced liver injury. METHODS CHI3L1 knock out (KO) mice and their littermate control mice based on C57BL/6 (10-12 weeks old) were fed on a Lieber-DeCarli diet containing 6.6% ethanol for 10 days. And, CHI3L1 siRNA or CHI3L1 expressing vector was transfected HepG2 cells were treated with ethanol or without. RESULTS Ethanol-induced hepatic triglyceride (TG) levels and the mRNA levels of TG synthesis-related genes such as acetyl-CoA carboxylase (ACC), fatty acid synthase (FAS) and stearoyl-CoA desaturase-1 (SCD1) were decreased in the liver of CHI3L1 knock out (KO) mice and the HepG2 cells transfected with CHI3L1 siRNA. Increased mRNA level and activation of SREBP1 which is transcription factor of ACC, FAS and SCD1 by ethanol feeding were reduced in the liver of ethanol-fed CHI3L1 KO mice. Moreover, ethanol-induced SREBP1 luciferase activity and mRNA level of SREBP1, ACC, FAS and SCD1 were also decreased in the HepG2 cells transfected with CHI3L1 siRNA, while those were further increased in the HepG2 cells treated with recombinant human CHI3L1. Furthermore, oxidative stress and up-regulated pro-inflammatory cytokines by ethanol were recovered in the liver of ethanol-fed CHI3L1 KO mice. CONCLUSION Our finding suggest that inhibition of CHI3L1 suppressed ethanol-induced liver injury through inhibition of TG synthesis, and the blocking of oxidative stress and hepatic inflammation induced SREBP1 activity could be significant.
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Affiliation(s)
- Dong Hun Lee
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk 28160, Republic of Korea
| | - Ji Hye Han
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk 28160, Republic of Korea
| | - Yong Sun Lee
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk 28160, Republic of Korea
| | - Young Suk Jung
- College of Pharmacy, Pusan National University, 2, Busandaehak-ro 63beon gil, Geumjeong-gu, Busan 609-735, Republic of Korea
| | - Yoon Seok Roh
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk 28160, Republic of Korea
| | - Jae Suk Yun
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk 28160, Republic of Korea
| | - Sang Bae Han
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk 28160, Republic of Korea
| | - Jin Tae Hong
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk 28160, Republic of Korea.
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Lee JH, Kim HJ, Han KD, Han JH, Bang CH, Park YM, Lee JY, Lee SJ, Park YG, Lee YB. Incidence and prevalence of alopecia areata according to subtype: a nationwide, population-based study in South Korea (2006-2015). Br J Dermatol 2019; 181:1092-1093. [PMID: 31102412 DOI: 10.1111/bjd.18145] [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: 11/27/2022]
Affiliation(s)
- J H Lee
- Department of Dermatology, Seoul St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - H J Kim
- Department of Dermatology, Seoul St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - K D Han
- Department of Biostatistics, College of Medicine, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul, 137-701, Korea
| | - J H Han
- Department of Dermatology, Seoul St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - C H Bang
- Department of Dermatology, Seoul St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Y M Park
- Department of Dermatology, Seoul St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - J Y Lee
- Department of Dermatology, Seoul St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - S J Lee
- Department of Business Management, Kwangwoon University, Seoul, Korea
| | - Y-G Park
- Department of Biostatistics, College of Medicine, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul, 137-701, Korea
| | - Y B Lee
- Department of Dermatology, Uijeongbu St Mary's Hospital, College of Medicine, The Catholic University of Korea, 271 Chunbo Street, Uijeongbu, 07345, Korea
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Park JH, Yeo IJ, Han JH, Suh JW, Lee HP, Hong JT. Anti-inflammatory effect of astaxanthin in phthalic anhydride-induced atopic dermatitis animal model. Exp Dermatol 2019; 27:378-385. [PMID: 28887839 DOI: 10.1111/exd.13437] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/29/2017] [Indexed: 12/25/2022]
Abstract
In this study, we investigated anti-dermatitic effects of astaxanthin (AST) in phthalic anhydride (PA)-induced atopic dermatitis (AD) animal model as well as in vitro model. AD-like lesion was induced by the topical application of 5% PA to the dorsal skin or ear of Hos:HR-1 mouse. After AD induction, 100 μL of 1 mg/mL and 2 mg/mL of AST (10 μg or 20 μg/cm2 ) was spread on the dorsum of ear or back skin three times a week for four weeks. We evaluated dermatitis severity, histopathological changes and changes in protein expression by Western blotting for inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2) and nuclear factor-κB (NF-κB) activity. We also measured tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), interleukin-6 (IL-6) and immunoglobulin E (IgE) concentration in the blood of AD mice by enzyme-linked immunosorbent assay (ELISA). AST treatment attenuated the development of PA-induced AD. Histological analysis showed that AST inhibited hyperkeratosis, mast cells and infiltration of inflammatory cells. AST treatment inhibited expression of iNOS and COX-2, and NF-κB activity as well as release of TNF-α, IL-1β, IL-6 and IgE. In addition, AST (5, 10 and 20 μM) potently inhibited lipopolysaccharide (LPS) (1 μg/mL)-induced nitric oxide (NO) production, expression of iNOS and COX-2 and NF-κB DNA binding activities in RAW 264.7 macrophage cells. Our data demonstrated that AST could be a promising agent for AD by inhibition of NF-κB signalling.
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Affiliation(s)
- Ju Ho Park
- College of Pharmacy and Medical Research Center, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea.,INIST ST CO., LTD., Eumseong-gun, Chungcheongbuk-do, Republic of Korea
| | - In Jun Yeo
- College of Pharmacy and Medical Research Center, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea
| | - Ji Hye Han
- College of Pharmacy and Medical Research Center, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea
| | - Jeong Won Suh
- GDE Ltd., Siheung-si, Gyeonggi-do, Republic of Korea
| | - Hee Pom Lee
- College of Pharmacy and Medical Research Center, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea
| | - Jin Tae Hong
- College of Pharmacy and Medical Research Center, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea
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Jung SY, Han JH, Park SJ, Lee EG, Lee MH, Lee ES, Kang HS, Lee KS, Park IH, Sim SH, Jeong HJ, Kwon Y, Lee DE, Joo J, Kim SK, Lee S. Abstract P3-03-05: Not presented. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p3-03-05] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
This abstract was not presented at the conference.
Citation Format: Jung S-Y, Han JH, Park SJ, Lee E-G, Lee MH, Lee ES, Kang H-S, Lee KS, Park IH, Sim SH, Jeong HJ, Kwon Y, Lee D-E, Joo J, Kim S-K, Lee S. Not presented [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P3-03-05.
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Affiliation(s)
- S-Y Jung
- National Cancer Center, Goyang, Republic of Korea; Wonkwang University Sanbon Hospital, Gunpo, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea
| | - JH Han
- National Cancer Center, Goyang, Republic of Korea; Wonkwang University Sanbon Hospital, Gunpo, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea
| | - SJ Park
- National Cancer Center, Goyang, Republic of Korea; Wonkwang University Sanbon Hospital, Gunpo, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea
| | - E-G Lee
- National Cancer Center, Goyang, Republic of Korea; Wonkwang University Sanbon Hospital, Gunpo, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea
| | - MH Lee
- National Cancer Center, Goyang, Republic of Korea; Wonkwang University Sanbon Hospital, Gunpo, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea
| | - ES Lee
- National Cancer Center, Goyang, Republic of Korea; Wonkwang University Sanbon Hospital, Gunpo, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea
| | - H-S Kang
- National Cancer Center, Goyang, Republic of Korea; Wonkwang University Sanbon Hospital, Gunpo, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea
| | - KS Lee
- National Cancer Center, Goyang, Republic of Korea; Wonkwang University Sanbon Hospital, Gunpo, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea
| | - IH Park
- National Cancer Center, Goyang, Republic of Korea; Wonkwang University Sanbon Hospital, Gunpo, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea
| | - SH Sim
- National Cancer Center, Goyang, Republic of Korea; Wonkwang University Sanbon Hospital, Gunpo, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea
| | - HJ Jeong
- National Cancer Center, Goyang, Republic of Korea; Wonkwang University Sanbon Hospital, Gunpo, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea
| | - Y Kwon
- National Cancer Center, Goyang, Republic of Korea; Wonkwang University Sanbon Hospital, Gunpo, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea
| | - D-E Lee
- National Cancer Center, Goyang, Republic of Korea; Wonkwang University Sanbon Hospital, Gunpo, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea
| | - J Joo
- National Cancer Center, Goyang, Republic of Korea; Wonkwang University Sanbon Hospital, Gunpo, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea
| | - S-K Kim
- National Cancer Center, Goyang, Republic of Korea; Wonkwang University Sanbon Hospital, Gunpo, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea
| | - S Lee
- National Cancer Center, Goyang, Republic of Korea; Wonkwang University Sanbon Hospital, Gunpo, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea
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Han JH, Shin H, Park JY, Rho JG, Son DH, Kim KW, Seong JK, Yoon SH, Kim W. A novel peripheral cannabinoid 1 receptor antagonist, AJ5012, improves metabolic outcomes and suppresses adipose tissue inflammation in obese mice. FASEB J 2018; 33:4314-4326. [DOI: 10.1096/fj.201801152rr] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Ji Hye Han
- Department of Molecular Science and TechnologyAjou University Suwon South Korea
| | - Hanho Shin
- Department of Molecular Science and TechnologyAjou University Suwon South Korea
| | - Ju-Young Park
- Department of Molecular Science and TechnologyAjou University Suwon South Korea
| | - Jun Gi Rho
- Department of Molecular Science and TechnologyAjou University Suwon South Korea
| | - Dong Hwee Son
- Department of Oral BiologyYonsei University College of Dentistry Seoul South Korea
| | - Ki Woo Kim
- Department of Oral BiologyYonsei University College of Dentistry Seoul South Korea
| | - Je Kyung Seong
- Laboratory of Developmental Biology and GenomicsResearch Institute for Veterinary ScienceCollege of Veterinary Medicine Seoul South Korea
- Korea Mouse Phenotyping Center (KMPC)Seoul National University Seoul South Korea
| | - Sung-Hwa Yoon
- Department of Molecular Science and TechnologyAjou University Suwon South Korea
| | - Wook Kim
- Department of Molecular Science and TechnologyAjou University Suwon South Korea
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31
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Wei LW, Yuan ZQ, Zhao MD, Gu CW, Han JH, Fu L. Inhibition of Cannabinoid Receptor 1 Can Influence the Lipid Metabolism in Mice with Diet-Induced Obesity. Biochemistry (Mosc) 2018; 83:1279-1287. [PMID: 30472964 DOI: 10.1134/s0006297918100127] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A growing number of evidences accumulated about critical metabolic role of cannabinoid type 1 receptor (CB1), carnitine palmitoyltransferase-1 (CPT1) and peroxisome proliferator-activated receptors (PPARs) in some peripheral tissues, including adipose tissue, liver, skeletal muscle and heart. To better understand the interactions of CB1, CPT1 and PPARs in these tissues, 30 diet-induced obese (DIO) C57BL/6J male mice were obtained, weight-matched and divided into two groups (15 in each group): (i) DIO/vehicle mice (D-Veh) and (ii) DIO/SR141716 mice (D-SR) treated with SR141716 (or rimonabant, a selective CB1 receptor blocker) administered orally (10 mg/kg daily). Another 15 mice fed standard diet (STD) formed the STD/vehicle group (S-Veh). At the end of 3-week treatment, mean body weight was 28.4 ± 0.5, 36.5 ± 0.8, and 30.3 ± 1.2 g for the S-Veh, D-Veh, and D-SR group, respectively (p < 0.05; D-Veh vs. D-SR). Liver weight in the D-SR group was also decreased significantly compared to the D-Veh group (p < 0.05). Serum levels of total cholesterol, high-density lipoprotein cholesterol, leptin and adiponectin in the D-SR group were ameliorated compared to the D-Veh group (p < 0.05). Both qRT-PCR and Western blot assay revealed that CB1 expression levels were efficiently blocked by SR141716 in subcutaneous adipose tissue (SAT), visceral adipose tissue (VAT), skeletal muscles and liver (D-SR vs. D-Veh; p < 0.05), whereas there was no significant difference between S-Veh and D-Veh mice (p > 0.05). Simultaneously with the reduction of CB1 expression in the D-SR group, the expression levels of CPT1A isoform (protein) in the liver and heart and CPT1B isoform (protein) in the SAT, VAT, liver and skeletal muscles were significantly increased (p < 0.05; D-SR vs. D-Veh). Interestingly, the CPT1A and CPT1B expression levels in heart were detected slightly. The expression levels of PPARα in the SAT, VAT, liver and skeletal muscles and PPARγ in the SAT and skeletal muscles in the D-SR group were significantly increased compared to the D-Veh mice (p < 0.05). However, the PPARβ expression level differed from that of PPARα and PPARγ. Taken together, these data indicate that the inhibition of CB1 could ameliorate lipid metabolism via the stimulation of the CPT1A and CPT1B expression in vivo. Simultaneously, the PPARα and PPARγ expression levels significantly differed compared to that of PPARβ in obesity and lipid metabolism-related disorders under blockade of CB1. Both the mechanism of the influence of CB1 inhibition on lipid metabolism in the examined tissues and the specific mechanism of PPARα, PPARγ and PPARβ involvement in lipid exchange under these conditions remain to be further elucidated.
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Affiliation(s)
- L W Wei
- Laboratory Animal Center, Southwest Medical University, Luzhou, Sichuan, 646000, China
| | - Z Q Yuan
- Department of Orthopaedics, The First Affiliated Hospital, Orthopaedic Institute, Soochow University, Suzhou, Jiangsu, 215006, China.
| | - M D Zhao
- Laboratory Animal Center, Southwest Medical University, Luzhou, Sichuan, 646000, China
| | - C W Gu
- Laboratory Animal Center, Southwest Medical University, Luzhou, Sichuan, 646000, China
| | - J H Han
- Laboratory Animal Center, Southwest Medical University, Luzhou, Sichuan, 646000, China
| | - L Fu
- Laboratory Animal Center, Southwest Medical University, Luzhou, Sichuan, 646000, China.
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Jeong DE, Heo S, Han JH, Lee EY, Kulkarni RN, Kim W. Glucose Controls the Expression of Polypyrimidine Tract-Binding Protein 1 via the Insulin Receptor Signaling Pathway in Pancreatic β Cells. Mol Cells 2018; 41:909-916. [PMID: 30165730 PMCID: PMC6199568 DOI: 10.14348/molcells.2018.0147] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 08/06/2018] [Accepted: 08/09/2018] [Indexed: 01/04/2023] Open
Abstract
In pancreatic β cells, glucose stimulates the biosynthesis of insulin at transcriptional and post-transcriptional levels. The RNA-binding protein, polypyrimidine tract-binding protein 1 (PTBP1), also named hnRNP I, acts as a critical mediator of insulin biosynthesis through binding to the pyrimidine-rich region in the 3'-untranslated region (UTR) of insulin mRNA. However, the underlying mechanism that regulates its expression in β cells is unclear. Here, we report that glucose induces the expression of PTBP1 via the insulin receptor (IR) signaling pathway in β cells. PTBP1 is present in β cells of both mouse and monkey, where its levels are increased by glucose and insulin, but not by insulin-like growth factor 1. PTBP1 levels in immortalized β cells established from wild-type (βIRWT) mice are higher than levels in β cells established from IR-null (βIRKO) mice, and ectopic re-expression of IR-WT in βIRKO cells restored PTBP1 levels. However, PTBP1 levels were not altered in βIRKO cells transfected with IR-3YA, in which the Tyr1158/1162/1163 residues are substituted with Ala. Consistently, treatment with glucose or insulin elevated PTBP1 levels in βIRWT cells, but not in βIRKO cells. In addition, silencing Akt significantly lowered PTBP1 levels. Thus, our results identify insulin as a pivotal mediator of glucose-induced PTBP1 expression in pancreatic β cells.
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Affiliation(s)
- Da Eun Jeong
- Department of Molecular Science and Technology, Ajou University, Suwon 16499,
Korea
| | - Sungeun Heo
- Department of Molecular Science and Technology, Ajou University, Suwon 16499,
Korea
| | - Ji Hye Han
- Department of Molecular Science and Technology, Ajou University, Suwon 16499,
Korea
| | - Eun-young Lee
- Department of Molecular Science and Technology, Ajou University, Suwon 16499,
Korea
| | - Rohit N. Kulkarni
- Department of Islet Cell and Regenerative Biology, Joslin Diabetes Center and Department of Medicine, Harvard Medical School, and Harvard Stem Cell Institute, Boston, MA 02215,
USA
| | - Wook Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 16499,
Korea
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Han JH, Ju JH, Lee YS, Park JH, Yeo IJ, Park MH, Roh YS, Han SB, Hong JT. Astaxanthin alleviated ethanol-induced liver injury by inhibition of oxidative stress and inflammatory responses via blocking of STAT3 activity. Sci Rep 2018; 8:14090. [PMID: 30237578 PMCID: PMC6148091 DOI: 10.1038/s41598-018-32497-w] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [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: 06/01/2018] [Accepted: 09/03/2018] [Indexed: 12/20/2022] Open
Abstract
Astaxanthin (AXT) is classified as a xanthophyll carotenoid compound which have broader functions including potent antioxidant, anti-inflammatory and neuroprotective properties. Considerable researches have demonstrated that AXT shows preventive and therapeutic properties against for Diabetes, Osteoarthritis and Rheumatoid Arthritis. However, the protective effect of AXT on liver disease has not yet been reported. In this study, we investigated effects of AXT on ethanol-induced liver injury in chronic plus binge alcohol feeding model. The hepatic steatosis and inflammation induced by ethanol administration were alleviated by AXT. Serum levels of aspartate transaminase and alanine transaminase were decreased in the livers of AXT administrated group. The ethanol-induced expression of cytochrome P450 2E1 (CYP2E1), pro-inflammatory proteins, cytokines, chemokines and reactive oxygen species (ROS) levels were also reduced in the livers of AXT administrated group. Moreover, ethanol-induced infiltration of neutrophils was decreased in the livers of AXT administrated group. Docking model and pull-down assay showed that AXT directly binds to the DNA binding site of STAT3. Moreover, AXT decreased STAT3 phosphorylation in the liver of AXT administration group. Therefore, these results suggest that AXT could prevent ethanol-induced hepatic injury via inhibition of oxidant and inflammatory responses via blocking of STAT3 activity.
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Affiliation(s)
- Ji Hye Han
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk, 28160, Republic of Korea
| | - Jung Heun Ju
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk, 28160, Republic of Korea
| | - Yong Sun Lee
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk, 28160, Republic of Korea
| | - Ju Ho Park
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk, 28160, Republic of Korea
| | - In Jun Yeo
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk, 28160, Republic of Korea
| | - Mi Hee Park
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk, 28160, Republic of Korea
| | - Yoon Seok Roh
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk, 28160, Republic of Korea
| | - Sang Bae Han
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk, 28160, Republic of Korea
| | - Jin Tae Hong
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, Chungbuk, 28160, Republic of Korea.
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Rho JG, Han HS, Han JH, Lee H, Nguyen VQ, Lee WH, Kwon S, Heo S, Yoon J, Shin HH, Lee EY, Kang H, Yang S, Lee EK, Park JH, Kim W. Self-assembled hyaluronic acid nanoparticles: Implications as a nanomedicine for treatment of type 2 diabetes. J Control Release 2018; 279:89-98. [PMID: 29649530 DOI: 10.1016/j.jconrel.2018.04.006] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [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: 02/22/2018] [Revised: 03/28/2018] [Accepted: 04/05/2018] [Indexed: 01/13/2023]
Abstract
Self-assembled hyaluronic acid nanoparticles (HA-NPs) have been extensively investigated for biomedical and pharmaceutical applications owing to their biocompatibility and receptor-binding properties. Here, we report that an empty HA-NP itself not bearing any drug has therapeutic effects on adipose tissue inflammation and insulin resistance. HA-NPs inhibited not only the receptor-mediated internalization of low-molecular-weight (LMW) free HA but also LMW free HA-induced pro-inflammatory gene expression in mouse primary bone marrow-derived macrophages (BMDMs) isolated from wild-type mice, but not in CD44-null (CD44-/-) BMDMs. An in vivo biodistribution study showed the distribution of HA-NPs and their co-localization with CD44 in adipose tissues including epididymal white adipose tissues (eWATs), but these were rarely observed in the eWATs of CD44-/- mice. In addition, CD44 expression and HA-NP accumulation in the eWATs were increased in mice with diet-induced obesity (DIO) compared to lean mice. Interestingly, treatment with HA-NPs in DIO mice suppressed adipose tissue inflammation as indicated by reduced macrophage content, the production of proinflammatory cytokines and NLRP3 inflammasome activity in eWATs, leading to improved insulin sensitivity and normalized blood glucose levels. Collectively, these results suggest that an empty HA-NP itself can be a therapeutic agent for the treatment of type 2 diabetes.
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Affiliation(s)
- Jun Gi Rho
- Department of Molecular Science & Technology, Ajou University, Suwon 16499, Republic of Korea
| | - Hwa Seung Han
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Ji Hye Han
- Department of Molecular Science & Technology, Ajou University, Suwon 16499, Republic of Korea
| | - Hansang Lee
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Van Quy Nguyen
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Wang Hee Lee
- Department of Molecular Science & Technology, Ajou University, Suwon 16499, Republic of Korea
| | - Seunglee Kwon
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Sungeun Heo
- Department of Molecular Science & Technology, Ajou University, Suwon 16499, Republic of Korea
| | - Juhwan Yoon
- Department of Molecular Science & Technology, Ajou University, Suwon 16499, Republic of Korea
| | - Han Ho Shin
- Department of Molecular Science & Technology, Ajou University, Suwon 16499, Republic of Korea
| | - Eun-Young Lee
- Department of Molecular Science & Technology, Ajou University, Suwon 16499, Republic of Korea
| | - Hoin Kang
- Department of Biochemistry, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Siyoung Yang
- Department of Pharmacology, Ajou University School of Medicine, Suwon 16499, Republic of Korea
| | - Eun Kyung Lee
- Department of Biochemistry, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Jae Hyung Park
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea; Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon 16419, Republic of Korea.
| | - Wook Kim
- Department of Molecular Science & Technology, Ajou University, Suwon 16499, Republic of Korea.
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Shin H, Han JH, Yoon J, Sim HJ, Park TJ, Yang S, Lee EK, Kulkarni RN, Egan JM, Kim W. Blockade of cannabinoid 1 receptor improves glucose responsiveness in pancreatic beta cells. J Cell Mol Med 2018; 22:2337-2345. [PMID: 29431265 PMCID: PMC5867156 DOI: 10.1111/jcmm.13523] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Accepted: 12/01/2017] [Indexed: 01/19/2023] Open
Abstract
Cannabinoid 1 receptors (CB1Rs) are expressed in peripheral tissues, including islets of Langerhans, where their function(s) is under scrutiny. Using mouse β-cell lines, human islets and CB1R-null (CB1R-/- ) mice, we have now investigated the role of CB1Rs in modulating β-cell function and glucose responsiveness. Synthetic CB1R agonists diminished GLP-1-mediated cAMP accumulation and insulin secretion as well as glucose-stimulated insulin secretion in mouse β-cell lines and human islets. In addition, silencing CB1R in mouse β cells resulted in an increased expression of pro-insulin, glucokinase (GCK) and glucose transporter 2 (GLUT2), but this increase was lost in β cells lacking insulin receptor. Furthermore, CB1R-/- mice had increased pro-insulin, GCK and GLUT2 expression in β cells. Our results suggest that CB1R signalling in pancreatic islets may be harnessed to improve β-cell glucose responsiveness and preserve their function. Thus, our findings further support that blocking peripheral CB1Rs would be beneficial to β-cell function in type 2 diabetes.
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Affiliation(s)
- Hanho Shin
- Department of Molecular Science and TechnologyAjou UniversitySuwonSouth Korea
| | - Ji Hye Han
- Department of Molecular Science and TechnologyAjou UniversitySuwonSouth Korea
| | - Juhwan Yoon
- Department of Molecular Science and TechnologyAjou UniversitySuwonSouth Korea
| | - Hyo Jung Sim
- School of Life ScienceUlsan National Institute of Science and Technology (UNIST)UlsanSouth Korea
- Center for Genomic IntegrityInstitute for Basic ScienceUlsanSouth Korea
| | - Tae Joo Park
- School of Life ScienceUlsan National Institute of Science and Technology (UNIST)UlsanSouth Korea
- Center for Genomic IntegrityInstitute for Basic ScienceUlsanSouth Korea
| | - Siyoung Yang
- Department of PharmacologyAjou University School of MedicineSuwonSouth Korea
- Department of Biomedical SciencesAjou University Graduate School of MedicineSuwonSouth Korea
| | - Eun Kyung Lee
- Department of BiochemistryCollege of MedicineThe Catholic University of KoreaSeoulSouth Korea
| | - Rohit N. Kulkarni
- Department of Islet Cell and Regenerative BiologyJoslin Diabetes Center and Department of MedicineHarvard Medical SchoolHarvard Stem Cell InstituteBostonMAUSA
| | - Josephine M. Egan
- Laboratory of Clinical InvestigationNational Institute on AgingNational Institutes of HealthBaltimoreMDUSA
| | - Wook Kim
- Department of Molecular Science and TechnologyAjou UniversitySuwonSouth Korea
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Oh JH, Kim ST, Jung JH, Han JH, Choi JY, Kang IG. Height Changes of Tutoplast-Processed Fascia Lata Over Time After Dorsal Augmentation During Rhinoplasty. J Oral Maxillofac Surg 2018; 76:1998.e1-1998.e6. [PMID: 29654779 DOI: 10.1016/j.joms.2018.03.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 03/14/2018] [Accepted: 03/14/2018] [Indexed: 11/30/2022]
Abstract
PURPOSE Tutoplast (Tutogen Medical, Neunkirchen am Brand, Germany)-processed fascia lata (TPFL) has been used for dorsal augmentation in rhinoplasty in the Republic of Korea for approximately 10 years, but few studies have described changes in TPFL in terms of dorsal height over time. We investigated changes in dorsal height after TPFL use as a dorsal implant material during rhinoplasty. MATERIALS AND METHODS The records of 18 rhinoplasty patients who had undergone dorsal augmentation with TPFL were examined retrospectively. The patients had undergone rhinoplasty from March 2008 to June 2012. Two different ear, nose, and throat doctors analyzed the first follow-up photographs (2 lateral views and 2 oblique views) taken at approximately 1 month postoperatively and the last follow-up photographs taken from 18 to 75 months after surgery. The last follow-up photographs were classified as showing no nasal dorsal height change, slight change, and marked change compared with the first follow-up photographs. RESULTS Of the 18 patients enrolled, 50% (n = 9) showed no change in the nasal dorsum whereas 33% (n = 6) showed mild depression and 17% (n = 3) showed marked depression of the nasal dorsum at last follow-up. CONCLUSIONS About half of the patients who had undergone dorsal augmentation using TPFL during rhinoplasty showed mild or marked dorsal depression over time. It is recommended that TPFL be used with another implant during augmentation rhinoplasty or TPFL be used only for a slightly depressed nose. In addition, patients should be informed that TPFL could be resorbed over time.
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Affiliation(s)
- Jae Hwan Oh
- Resident, Department of Otolaryngology-Head & Neck Surgery, Gil Medical Center, Gachon University, Incheon, Republic of Korea
| | - Seon Tae Kim
- Professor, Department of Otolaryngology-Head & Neck Surgery, Medical Faculty, Gil Medical Center, Gachon University, Incheon, Republic of Korea
| | - Joo Hyun Jung
- Associated Professor, Department of Otolaryngology-Head & Neck Surgery, Medical Faculty, Gil Medical Center, Gachon University, Incheon, Republic of Korea
| | - Ji Hye Han
- Resident, Department of Otolaryngology-Head & Neck Surgery, Chosun University College of Medicine, Kwangju, Republic of Korea
| | - Ji Yun Choi
- Associated Professor, Department of Otolaryngology-Head & Neck Surgery, Chosun University College of Medicine, Kwangju, Republic of Korea
| | - Il Gyu Kang
- Professor, Department of Otolaryngology-Head & Neck Surgery, Medical Faculty, Gil Medical Center, Gachon University, Incheon, Republic of Korea.
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Lee EG, Kang H, Park SJ, Han JH, Jung SY, Lee S, Kang HS, Park B, Kong SY, Lim MC, Park SY, Lee ES. Abstract P4-06-12: Different patterns of risk reducing decisions in affected or unaffected BRCA mutation carriers. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p4-06-12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
BACKGROUND
Risk-reducing (RR) management decreases the risk of breast cancer and BRCA related gynecologic cancer. However, there are fewer reports on the RR management in Asia compared to Western countries.The aim of this study is to identify risk reducing management patterns with BRCA1 or BRCA2 mutation carriers.
METHODS
The study group consisted of all consecutive 1104 breast cancer, ovarian patients and their families of high-risk patients who underwent BRCA gene testing in National Cancer Center, Korea from 2008 to 2016. A total 220 BRCA mutations (19.9%) were detected with 125(11.3%) of BRCA1 gene and 95 (8.6%) of BRCA2 gene.
RESULTS
Out of 220 BRCA mutations carriers, they were consisted of 83 breast cancers, 10 ovarian cancers, 7 both cancers, and 120 unaffected carriers. Among them, 42 were men and 178 were women. About 90 % (198/ 220) had the familial history of breast, ovarian or both malignancies (113 in BRCA1 and 85 in BRCA2 mutation (p=0.821)).
All 42 men chose surveillance. Among 178 female BRCA mutation carriers, 98(55.1%) underwent risk reducing management including 18(10.1%) of chemoprevention, and 80(49.9%) had risk-reducing surgeries (RRSs) (1 case of risk-reducing mastectomy, 76 of risk reducing bilateral salphingo-oophorectomy (RRSO), and 3 of both) and 80 (54.9%) chose only intensive surveillance for both of breast and ovary cancer.
In affected carriers with breast cancer, 59 (71.1%) underwent RR management (1 case of risk reducing mastectomy, 53 of RRSO, 3 of both surgery, and 2 of chemoprevention). There was no risk reducing management in affected carrier with ovarian cancer patients. In 78 unaffected women carriers, 39(50.0%) women received RR management (23(29.5%) cases of RRSO and 16(20.5%) cases of chemoprevention). The rates of RRSs have increased annually since the 2013 year, (prior to 2013 vs. since 2013, RRSs 28.6% (6 cases/21 carriers) vs. 37.2% (74/199), p<0.01).
CONCLUSION
This study was conducted on the largest numbers of BRCA mutation carriers in Asian countries. RRSO is the more preferred management for affected carriers with breast cancer or unaffected carriers. The results might be explained by the severity of the illness and that RRSO was only reimbursed RR strategy from the Korean Government Insurance. Tailored genetic counseling and insurance policy may enhance overall levels of RR management.
Citation Format: Lee EG, Kang H, Park SJ, Han JH, Jung S-Y, Lee S, Kang H-S, Park B, Kong S-Y, Lim MC, Park S-Y, Lee ES. Different patterns of risk reducing decisions in affected or unaffected BRCA mutation carriers [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P4-06-12.
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Affiliation(s)
- EG Lee
- Center for Breast Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea; Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Gyeonggi-do, Korea; Center for Uterine Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea
| | - H Kang
- Center for Breast Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea; Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Gyeonggi-do, Korea; Center for Uterine Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea
| | - SJ Park
- Center for Breast Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea; Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Gyeonggi-do, Korea; Center for Uterine Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea
| | - JH Han
- Center for Breast Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea; Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Gyeonggi-do, Korea; Center for Uterine Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea
| | - S-Y Jung
- Center for Breast Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea; Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Gyeonggi-do, Korea; Center for Uterine Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea
| | - S Lee
- Center for Breast Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea; Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Gyeonggi-do, Korea; Center for Uterine Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea
| | - H-S Kang
- Center for Breast Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea; Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Gyeonggi-do, Korea; Center for Uterine Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea
| | - B Park
- Center for Breast Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea; Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Gyeonggi-do, Korea; Center for Uterine Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea
| | - S-Y Kong
- Center for Breast Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea; Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Gyeonggi-do, Korea; Center for Uterine Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea
| | - MC Lim
- Center for Breast Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea; Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Gyeonggi-do, Korea; Center for Uterine Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea
| | - S-Y Park
- Center for Breast Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea; Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Gyeonggi-do, Korea; Center for Uterine Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea
| | - ES Lee
- Center for Breast Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea; Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Gyeonggi-do, Korea; Center for Uterine Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea
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Yang SZ, Zhou CY, Wang F, Sun BC, Han ZL, Shen Y, Han JH, Zhang HJ. [Analysis of curative effect of transoral radiofrequency ablation microsurgery on glottic carcinoma with anterior commissure involvement at the early stage]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 53:86-91. [PMID: 29429176 DOI: 10.3760/cma.j.issn.1673-0860.2018.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the key technique and outcome of transoral radiofrequency ablation microsurgery for early stage of glottic carcinoma with anterior commissure involvement (ACI). Methods: A retrospective analysis was conducted on 31 patients, who were diagnosed as early stage glottic carcinoma during January 2010 to March 2016 in ENT Department. According to whether the anterior commissure was involved or not, two groups were divided. There were eleven cases with ACI (stages T1a, T1b, and T2). Twenty cases without ACI (stages Tis, T1a, and T2). All the patients received transoral radiofrequency ablation microsurgery and followed up closely.Only one case received radiotheraphy after surgery. SPSS19.0 software was used to analyze data. Results: The follow-up time was 12-67 months, and the median follow-up time was 30 months. Nine among 11 cases with ACI obtained good oncologic outcomes, initial local recurrence was identified in 2/11 cases, including 2 cases of T2. Two cases ultimately required salvage total laryngectomy. Meanwhile, initial local recurrence was identified in 2/20 cases without ACI, including 1 case of T1a and 1 case of T2. One case underwent elective neck dissection, and another one received salvage total laryngectomy.Compared to the patients without ACI, it seemed that the cases with ACI always accomponied with a little higher initial local recurrence and lower overall laryngealpreservation, but the difference had no significance (P>0.05). Conclusions: Transoral radiofrequency ablation microsurgery is an effective treatment for glottic carcinoma with ACI. Its advantages, such as more flexibility and deformability, make it more feasible to operate at the narrow space of anterior commissure assisted with laryngeal endoscopy.Good oncologic outcomes can be obtained by this technique with lower initial local recurrence as well as higher overall laryngeal preservation rate.
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Affiliation(s)
- S Z Yang
- Department of Otorhinolaryngology, First Affiliated Hospital to the People Liberation Army General Hospital, Beijing 100048, China
| | - C Y Zhou
- Department of Otorhinolaryngology, First Affiliated Hospital to the People Liberation Army General Hospital, Beijing 100048, China
| | - F Wang
- Department of Otorhinolaryngology, First Affiliated Hospital to the People Liberation Army General Hospital, Beijing 100048, China
| | - B C Sun
- Department of Otorhinolaryngology, First Affiliated Hospital to the People Liberation Army General Hospital, Beijing 100048, China
| | - Z L Han
- Department of Otorhinolaryngology, First Affiliated Hospital to the People Liberation Army General Hospital, Beijing 100048, China
| | - Y Shen
- Department of Otorhinolaryngology, First Affiliated Hospital to the People Liberation Army General Hospital, Beijing 100048, China
| | - J H Han
- Department of Otorhinolaryngology, First Affiliated Hospital to the People Liberation Army General Hospital, Beijing 100048, China
| | - H J Zhang
- Department of Otorhinolaryngology, First Affiliated Hospital to the People Liberation Army General Hospital, Beijing 100048, China
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Han JH, Moon AR, Chang JH, Bae J, Choi JM, Lee SH, Kim TH. Erratum to: Potentiation of TRAIL killing activity by multimerization through isoleucine zipper hexamerization motif. BMB Rep 2017; 50:647. [PMID: 29279065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Indexed: 06/07/2023] Open
Abstract
The BMB Reports would like to correct in the ACKNOWLEDGEMENTS of BMB Rep. 49(5), 282-287 titled "Potentiation of TRAIL killing activity by multimerization through isoleucine zipper hexamerization motif."
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Affiliation(s)
| | | | | | | | | | | | - Tae-Hyoung Kim
- Departments of Biochemistry, Chosun University School of Medicine, Gwangju 61452, Korea
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Sun BC, Wang F, Yang SZ, Han ZL, Han JH, Shen Y, Yan QH, Zhou CY. [Complications analysis of adenoidectomy and tonsillectomy assisted with ablation on children]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 31:1720-1723. [PMID: 29798183 DOI: 10.13201/j.issn.1001-1781.2017.22.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Indexed: 11/12/2022]
Abstract
Objective:To analyze the complications of adenotonsilectomy assisted with coblation in children. Method:Complications of 2 089 cases of children with adenoid and tonsil surgery assisted with coblation, in our hospital nearly 10 years, were analyzed by epidemiological methods through the method of retrospective analysis. Result:①the sex ratio of male to female was 2.08:1, average age (5.87±3.12) years old, and most of 2 089 cases 76.35% (1 595/2 089) were 3-7 years old; ②all cases underwent adenoidectomy. Different surgery methods of tonsil consisted of three groups as partial resection associated with ablation was 69.17% (1 445/2 089), ablation (channeling) alone was 22.26% (465/2 089) and total resection was 8.57% (179/208). The amount of bleeding in operation was (8.52±3.18)ml, average operation time was (30.15±8.26) minutes, the postoperative pain score was (3.77±1.61); ③The incidence of postoperative complications: postoperative bleeding (all were secondary bleeding cases) rate was 0.24% (5/2 089), recurrence rate was 0.14% (3/2 089), prevertebral lymphadenitis was 0.96% (20/2 089), the other was 0.29% (torus hyperplasia in 2 cases, dyspnea in 2 cases, 1 cases of angle of mouth burned, nasopharyngeal adhesion in 1 cases). Postoperative fever rate was 9.81% (205/2 089). Conclusion:coblation technique is a good method for the treatment of children's adenoids and tonsil diseases with high efficiency and low complications. But improving the operation procedure proficiency level and skills of operation is an important link to reduce complications.
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Affiliation(s)
- B C Sun
- Department of Otolaryngology, the First Affiliated Hospital of PLA General Hospital, Beijing, 100048, China
| | - F Wang
- Department of Otolaryngology, the First Affiliated Hospital of PLA General Hospital, Beijing, 100048, China
| | - S Z Yang
- Department of Otolaryngology, the First Affiliated Hospital of PLA General Hospital, Beijing, 100048, China
| | - Z L Han
- Department of Otolaryngology, the First Affiliated Hospital of PLA General Hospital, Beijing, 100048, China
| | - J H Han
- Department of Otolaryngology, the First Affiliated Hospital of PLA General Hospital, Beijing, 100048, China
| | - Y Shen
- Department of Otolaryngology, the First Affiliated Hospital of PLA General Hospital, Beijing, 100048, China
| | - Q H Yan
- Department of Otolaryngology, the First Affiliated Hospital of PLA General Hospital, Beijing, 100048, China
| | - C Y Zhou
- Department of Otolaryngology, the First Affiliated Hospital of PLA General Hospital, Beijing, 100048, China
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Han JH, Lei J, Liu MQ, Fu KY. [The images of osteoarthrosis associated with anterior disc displacement without reduction detected by cone-beam CT]. Zhonghua Kou Qiang Yi Xue Za Zhi 2017; 52:22-26. [PMID: 28072990 DOI: 10.3760/cma.j.issn.1002-0098.2017.01.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the radiological characteristics of the condylar bone in patients with anterior disc displacement without reduction of temporomandibular joint using cone-beam CT (CBCT), and to further investigate the clinical factors possibly associated with the early-stage osteoarthritic changes. Methods: Two hundred and four individuals (≤30 years old) diagnosed as unilateral anterior disc displacement without reduction (disease duration≤1 year) were recruited. CBCT images of bilateral condyles were independently evaluated by two assessors and documented. Correlation between the early-stage osteoarthritic (OA) changes and gender, age, disease duration and mouth opening were analyzed using SPSS 21.0 software. Results: About sixty percent were presented with OA changes in the symptomatic joints, and most of them (47.1%) (96/204) were early-stage OA changes characterized by loss of continuity of articular cortex (Ⅰ) and/or surface erosion (Ⅱ). Logistics regression analyses indicated that disease duration (P =0.000) and mouth opening (P =0.002) were correlated significantly with early-stage OA changes. Conclusions: Disc displacement without reduction was closely related to OA occurrence. OA changes occurred in more than half of the patients after one month of the joint locked and more possibly in patients with increased mouth opening.
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Affiliation(s)
- J H Han
- Center for TMD and Orofacial Pain, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - J Lei
- Center for TMD and Orofacial Pain, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - M Q Liu
- Center for TMD and Orofacial Pain, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - K Y Fu
- Center for TMD and Orofacial Pain, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
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Kim JM, Han JH, Joung KH, Lee JH, Kim HJ, Ku BJ. A Case of Fulminant Type 1 Diabetes in a Patient with Type 2 Diabetes Mellitus. J Obes Metab Syndr 2017; 26:147-150. [PMID: 31089509 PMCID: PMC6484907 DOI: 10.7570/jomes.2017.26.2.147] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 03/03/2016] [Accepted: 04/27/2016] [Indexed: 11/02/2022] Open
Abstract
Fulminant type 1 diabetes mellitus is a recently identified subtype of type 1 diabetes characterized by abrupt disease onset, a very short (<1 week) duration of diabetic symptoms, acidosis at diagnosis, negative status of islet-related autoantibodies, and virtually no C-peptide secretion. Cases of fulminant type 1 diabetes are prominently observed in East Asia, with several case reports and studies having originated from Japan. Indeed, a recent study from Japan reported that fulminant type 1 diabetes accounts for 15-20% of type 1 diabetes cases associated with onset of ketosis or ketoacidosis. Since 2005, several fulminant type 1 diabetes cases have also been reported in South Korea; however, there have been no reports of cases in patients previously diagnosed with type 2 diabetes mellitus. Here, we report a rare case of fulminant type 1 diabetes in a patient previously diagnosed with type 2 diabetes.
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Affiliation(s)
- Ji Min Kim
- Department of Internal Medicine, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
| | - Ji Hye Han
- Department of Internal Medicine, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
| | - Kyong Hye Joung
- Department of Internal Medicine, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
| | - Ju Hee Lee
- Department of Internal Medicine, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
| | - Hyun Jin Kim
- Department of Internal Medicine, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
| | - Bon Jeong Ku
- Department of Internal Medicine, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
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Han JH, Lee SM, Kim YS. Effects of Schiff Base Formation and Aldol Condensation on the Determination of Aldehydes in Rice Wine Using GC-MS. Molecules 2017; 22:E618. [PMID: 28398262 PMCID: PMC6154326 DOI: 10.3390/molecules22040618] [Citation(s) in RCA: 2] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 04/06/2017] [Accepted: 04/10/2017] [Indexed: 11/16/2022] Open
Abstract
The Schiff base reaction and aldol condensation that occur during sample preparation can lead to the reduction of aldehyde content in the analysis of traditional Korean rice wine, makgeolli. The contents of aldehydes were decreased, whereas those of hydroxy carbonyl compounds were increased by increasing the pH. In the presence of added amino acids, the levels of aldehydes in makgeolli were reduced as the amount of the amino acid alanine increased. Also, the contents of hydroxyl carbonyl compounds were reduced by alanine addition as compared to the control. Therefore, the determination of aldehydes can be affected by pH and the amount of amino acids, which can vary during fermentation and storage of alcoholic beverages because pH and amino acids affect Schiff base formation and aldol condensation.
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Affiliation(s)
- Ji Hye Han
- Department of Food Science and Engineering, Ewha Womans University, Seoul 120-750, Korea.
| | - Sang Mi Lee
- Department of Food Science and Engineering, Ewha Womans University, Seoul 120-750, Korea.
| | - Young-Suk Kim
- Department of Food Science and Engineering, Ewha Womans University, Seoul 120-750, Korea.
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Park SY, Park JM, Choi CH, Chun M, Han JH, Cho JD, Kim JI. Optimal Density Assignment to 2D Diode Array Detector for Different Dose Calculation Algorithms in Patient Specific VMAT QA. ACTA ACUST UNITED AC 2017. [DOI: 10.14407/jrpr.2017.42.1.9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Han JH, Oh TJ, Lee G, Maeng HJ, Lee DH, Kim KM, Choi SH, Jang HC, Lee HS, Park KS, Kim YB, Lim S. The beneficial effects of empagliflozin, an SGLT2 inhibitor, on atherosclerosis in ApoE -/- mice fed a western diet. Diabetologia 2017; 60:364-376. [PMID: 27866224 DOI: 10.1007/s00125-016-4158-2] [Citation(s) in RCA: 183] [Impact Index Per Article: 26.1] [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: 09/12/2016] [Accepted: 10/21/2016] [Indexed: 02/06/2023]
Abstract
AIMS/HYPOTHESIS A recent large clinical study has shown that empagliflozin has a lower rate of cardiovascular and all-cause mortality when compared with placebo in patients with type 2 diabetes. We investigated the effect of empagliflozin (compared with glimepiride) on the progression of atherosclerosis, and its possible mechanisms of action. METHODS Forty-eight 5-week-old male ApoE -/- mice were fed a western diet for 20 weeks and divided into four groups: control (saline, 154 mmol/l NaCl), glimepiride 0.1 mg/kg, empagliflozin 1 mg/kg and empagliflozin 3 mg/kg (n = 12/group). Plaque size and composition in the aortic arch/valve areas and cardiovascular risk variables in the blood and tissues were evaluated. Insulin resistance was estimated by HOMA and adiponectin levels. Body composition was determined using dual-energy x-ray absorptiometry. RESULTS After 8 weeks of treatment, the empagliflozin and glimepiride groups exhibited decreased blood glucose levels. Atherosclerotic plaque areas in the aortic arch/valve were significantly smaller in the empagliflozin groups than in the control or glimepiride groups. Insulin resistance and circulating concentrations of TNF-α, IL-6, monocyte chemoattractant protein-1 (MCP-1), serum amyloid A and urinary microalbumin decreased after empagliflozin treatment, and this significantly correlated with plaque size. Empagliflozin treatment reduced weight and fat mass, lipid droplets in the liver, fat cell size, mRNA expression of Tnf, Il6 and Mcp-1 (also known as Ccl2) and the infiltration of inflammatory cells in plaque and adipose tissue compared with the control or glimepiride group. Empagliflozin treatment increased adiponectin levels. CONCLUSIONS/INTERPRETATION Improvements in inflammation and insulin resistance seem to be mechanisms involved in the mitigation of atherosclerosis by empagliflozin.
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Affiliation(s)
- Ji Hye Han
- Department of Internal Medicine, Seoul National University College of Medicine and Seoul National University Bundang Hospital, 300 Gumi-dong, Bundang-gu, Seongnam-city, South Korea, 463-070
| | - Tae Jung Oh
- Department of Internal Medicine, Seoul National University College of Medicine and Seoul National University Bundang Hospital, 300 Gumi-dong, Bundang-gu, Seongnam-city, South Korea, 463-070
| | - Ghayoung Lee
- Department of Internal Medicine, Seoul National University College of Medicine and Seoul National University Bundang Hospital, 300 Gumi-dong, Bundang-gu, Seongnam-city, South Korea, 463-070
| | - Hyo Jin Maeng
- Department of Internal Medicine, Seoul National University College of Medicine and Seoul National University Bundang Hospital, 300 Gumi-dong, Bundang-gu, Seongnam-city, South Korea, 463-070
| | - Dong Hwa Lee
- Department of Internal Medicine, Seoul National University College of Medicine and Seoul National University Bundang Hospital, 300 Gumi-dong, Bundang-gu, Seongnam-city, South Korea, 463-070
| | - Kyoung Min Kim
- Department of Internal Medicine, Seoul National University College of Medicine and Seoul National University Bundang Hospital, 300 Gumi-dong, Bundang-gu, Seongnam-city, South Korea, 463-070
| | - Sung Hee Choi
- Department of Internal Medicine, Seoul National University College of Medicine and Seoul National University Bundang Hospital, 300 Gumi-dong, Bundang-gu, Seongnam-city, South Korea, 463-070
| | - Hak Chul Jang
- Department of Internal Medicine, Seoul National University College of Medicine and Seoul National University Bundang Hospital, 300 Gumi-dong, Bundang-gu, Seongnam-city, South Korea, 463-070
| | - Hye Seung Lee
- Department of Pathology, Seoul National University College of Medicine and Seoul National University Bundang Hospital, Seongnam, South Korea
| | - Kyong Soo Park
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - Young-Bum Kim
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | - Soo Lim
- Department of Internal Medicine, Seoul National University College of Medicine and Seoul National University Bundang Hospital, 300 Gumi-dong, Bundang-gu, Seongnam-city, South Korea, 463-070.
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Han JH, Moon AR, Chang JH, Bae J, Choi JM, Lee SH, Kim TH. Potentiation of TRAIL killing activity by multimerization through isoleucine zipper hexamerization motif. BMB Rep 2017; 49:282-7. [PMID: 26674343 PMCID: PMC5070708 DOI: 10.5483/bmbrep.2016.49.5.245] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [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: 11/25/2016] [Indexed: 12/25/2022] Open
Abstract
Tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) is a homo-trimeric cytotoxic ligand. Several studies have demonstrated that incorporation of artificial trimerization motifs into the TRAIL protein leads to the enhancement of biological activity. Here, we show that linkage of the isoleucine zipper hexamerization motif to the N-terminus of TRAIL, referred as ILz(6):TRAIL, leads to multimerization of its trimeric form, which has higher cytotoxic activity compared to its native state. Size exclusion chromatography of ILz(6):TRAIL revealed possible existence of various forms such as trimeric, hexameric, and multimeric (possibly containing one-, two-, and multi-units of trimeric TRAIL, respectively). Increased number of multimerized ILz(6):TRAIL units corresponded with enhanced cytotoxic activity. Further, a high degree of ILz(6):TRAIL multimerization triggered rapid signaling events such as activation of caspases, tBid generation, and chromatin condensation. Taken together, these results indicate that multimerization of TRAIL significantly enhances its cytotoxic activity. [BMB Reports 2016; 49(5): 282-287].
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Affiliation(s)
- Ji Hye Han
- Departments of Biochemistry, Chosun University School of Medicine, Gwangju 61452, Korea
| | - Ae Ran Moon
- Departments of Biochemistry, Chosun University School of Medicine, Gwangju 61452, Korea
| | - Jeong Hwan Chang
- Departments of Surgery, Chosun University School of Medicine, Gwangju 61452, Korea
| | - Jeehyeon Bae
- School of Pharmacy, Chung-Ang University, Seoul 06974, Korea
| | - Jin Myung Choi
- Departments of Cellular and Molecular Medicine, Chosun University School of Medicine, Gwangju 61452, Korea
| | - Sung Haeng Lee
- Departments of Cellular and Molecular Medicine, Chosun University School of Medicine, Gwangju 61452, Korea
| | - Tae-Hyoung Kim
- Departments of Biochemistry, Chosun University School of Medicine, Gwangju 61452, Korea
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Li HZ, Jia HX, Liang D, Deng TT, Niu LT, Han JH. [Study on the contribution rate of follow-up formula to the nutrient intake of infants and young children aged 7-24 months in China]. Zhonghua Yu Fang Yi Xue Za Zhi 2017; 51:65-69. [PMID: 28056273 DOI: 10.3760/cma.j.issn.0253-9624.2017.01.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To determine the contribution of follow-up formula (FUF) to the nutrient intake of 7-24-month-old infants and young children. Methods: The cluster random sampling method and the convenience sampling method were used in combination, and geographic and economic factors were taken into consideration. Four areas of China (Beijing, Hebei, Guangxi, Guangdong) were selected, with 120 infants chosen from each of these areas (half of which were 7-12 months old, and half were 13-24 months old). A dietary survey was completed by a continuous 24-hour weighing method over two days. Questionnaires were completed by their caregivers which included weighing the FUF and supplementary food given to the infant, and recording the frequency of breast feeding and any supplementary nutrients. A total of 518 questionnaires were distributed, and 472 questionnaires qualified for inclusion. Nutrient intake was calculated using the China food composition, infant formula food nutrient content and infant nutrition supplement brand-label information databases, and then the nutrient intake proportion (the percentage of estimated energy requirement (EER%), recommended nutrient intake (RNI%) or adequate intake (AI%)), and the contribution rate of FUF were analyzed. Results: A total of 472 infants were investigated (227 infants aged 7-12 months old, 245 infants aged 13-24 months old). The findings revealed that the median energy intake of 7- 12-month-old and 13- 24-month-old infants were 2 530.08 kJ and 3 445.48 kJ, respectively, which accounted for 85.18% and 94.14% of EER, respectively; and the median intake of protein reached 91.50% and 105.88% of their RNI/AI, respectively. For micronutrients, the median intake of vitamin B1, vitamin B2, niacin, vitamin E, potassium, zinc and manganese in 7- 12-month-old infants and vitamin B2, vitamin E, potassium, magnesium, iron and manganese in 13-24-month-old children accounted for 82.00% and 114.29% of RNI/AI (RNI%/AI%), respectively. The intake of vitamin B6, iron and selenium in 7-12-month-old infants and vitamin B1, vitamin B6, vitamin C, calcium and selenium in 13-24-month-old children was less than 80% RNI/AI. Furthermore, some nutrients showed higher intake levels, such as vitamin A, calcium, phosphorus and magnesium in 7-12-month-old infants and vitamin A and phosphorus in 13-24-month-old children, which were higher than 130% RNI/AI. In total, 40.53% (92) of infants aged 7-12 months and 52.65% (129) of children aged 13- 24 months were fed FUF as part of their diet, and its contribution rate to macronutrients was 29.69% for carbohydrates and 51.77% for fats, and to micronutrients was 2.04% for manganese and 74.24% for vitamin C. Conclusion: FUF contributes to the nutrient intake of infants and young children aged from 7-24 months old at different rates depending on the macronutrient or micronutrient analyzed.
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Affiliation(s)
- H Z Li
- Standard Research Center, China National Center for Food Safety Risk Assessment, Beijing 100022, China
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Chang BY, Kim DE, Han JH, Oh JS, Hong JH, Kim SY. Hepatoprotective and antioxidant effect of SS 09 on chemically induced acute hepatotoxicity. Drug Metab Pharmacokinet 2017. [DOI: 10.1016/j.dmpk.2016.10.329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Lee JH, Han JH, Park JH, Song IC. Invasive Aspergillosis of the Abdominal Aorta with Multiple Peripheral Embolic Lesions. Korean Circ J 2017; 47:422-423. [PMID: 28567096 PMCID: PMC5449540 DOI: 10.4070/kcj.2016.0358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Revised: 11/12/2016] [Accepted: 11/29/2016] [Indexed: 11/13/2022] Open
Affiliation(s)
- Jae-Hwan Lee
- Department of Internal Medicine, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
| | - Ji Hye Han
- Department of Internal Medicine, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
| | - Jae-Hyeong Park
- Department of Internal Medicine, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
| | - Ik-Chan Song
- Department of Internal Medicine, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
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Park SY, Choi CH, Park JM, Chun M, Han JH, Kim JI. A Patient-Specific Polylactic Acid Bolus Made by a 3D Printer for Breast Cancer Radiation Therapy. PLoS One 2016; 11:e0168063. [PMID: 27930717 PMCID: PMC5145239 DOI: 10.1371/journal.pone.0168063] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Accepted: 11/23/2016] [Indexed: 11/19/2022] Open
Abstract
Purpose The aim of this study was to assess the feasibility and advantages of a patient-specific breast bolus made using a 3D printer technique. Methods We used the anthropomorphic female phantom with breast attachments, which volumes are 200, 300, 400, 500 and 650 cc. We simulated the treatment for a right breast patient using parallel opposed tangential fields. Treatment plans were used to investigate the effect of unwanted air gaps under bolus on the dose distribution of the whole breast. The commercial Super-Flex bolus and 3D-printed polylactic acid (PLA) bolus were applied to investigate the skin dose of the breast with the MOSFET measurement. Two boluses of 3 and 5 mm thicknesses were selected. Results There was a good agreement between the dose distribution for a virtual bolus generated by the TPS and PLA bolus. The difference in dose distribution between the virtual bolus and Super-Flex bolus was significant within the bolus and breast due to unwanted air gaps. The average differences between calculated and measured doses in a 200 and 300 cc with PLA bolus were not significant, which were -0.7% and -0.6% for 3mm, and -1.1% and -1.1% for 5 mm, respectively. With the Super-Flex bolus, however, significant dose differences were observed (-5.1% and -3.2% for 3mm, and -6.3% and -4.2% for 5 mm). Conclusion The 3D-printed solid bolus can reduce the uncertainty of the daily setup and help to overcome the dose discrepancy by unwanted air gaps in the breast cancer radiation therapy.
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Affiliation(s)
- So-Yeon Park
- Department of Radiation Oncology, Seoul National University Hospital, Seoul, Republic of Korea
- Institute of Radiation Medicine, Seoul National University Medical Research Center, Seoul, Republic of Korea
- Biomedical Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Chang Heon Choi
- Department of Radiation Oncology, Seoul National University Hospital, Seoul, Republic of Korea
- Institute of Radiation Medicine, Seoul National University Medical Research Center, Seoul, Republic of Korea
- Biomedical Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jong Min Park
- Department of Radiation Oncology, Seoul National University Hospital, Seoul, Republic of Korea
- Institute of Radiation Medicine, Seoul National University Medical Research Center, Seoul, Republic of Korea
- Biomedical Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
- Center for Convergence Research on Robotics, Advance Institutes of Convergence Technology, Suwon, Republic of Korea
| | - MinSoo Chun
- Department of Radiation Oncology, Seoul National University Hospital, Seoul, Republic of Korea
- Institute of Radiation Medicine, Seoul National University Medical Research Center, Seoul, Republic of Korea
- Biomedical Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Ji Hye Han
- Department of Radiation Oncology, Seoul National University Hospital, Seoul, Republic of Korea
- Biomedical Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jung-in Kim
- Department of Radiation Oncology, Seoul National University Hospital, Seoul, Republic of Korea
- Institute of Radiation Medicine, Seoul National University Medical Research Center, Seoul, Republic of Korea
- Biomedical Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
- * E-mail:
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