1
|
Park CO, Kim SM, Lee KH, Bieber T. Biomarkers for phenotype-endotype relationship in atopic dermatitis: a critical review. EBioMedicine 2024; 103:105121. [PMID: 38614010 PMCID: PMC11021839 DOI: 10.1016/j.ebiom.2024.105121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 03/27/2024] [Accepted: 04/02/2024] [Indexed: 04/15/2024] Open
Abstract
Atopic dermatitis (AD) is the most common form of chronic skin inflammation with diverse clinical variants. Historically, various AD phenotypes have been grouped together without considering their heterogeneity. This approach has resulted in a lack of phenotype- and endotype-adapted therapeutic strategies. Comprehensive insights into AD pathogenesis have enabled precise medicinal approach for AD. These efforts aimed to redefine the endophenotype of AD and develop various biomarkers for diverse purposes. Among these endeavours, efforts are underway to elucidate the mechanisms (and related biomarkers) that lead to the emergence and progression of atopic diseases originating from AD (e.g., atopic march). This review focuses on diverse AD phenotypes and calls for a definition of endophenotypes. While awaiting scientific validation, these biomarkers ensure predicting disease onset and trajectory and tailoring therapeutic strategies for the future.
Collapse
Affiliation(s)
- Chang Ook Park
- Department of Dermatology & Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, South Korea.
| | - Su Min Kim
- Department of Dermatology & Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - Kwang Hoon Lee
- Department of Dermatology & Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - Thomas Bieber
- Christine Kühne-Center of Allergy Research and Education, Medicine Campus, Davos, Switzerland
| |
Collapse
|
2
|
Kim SM, Jo SJ. An Examination of the Effects of Job Insecurity on Counterproductive Work Behavior Through Organizational Cynicism: Moderating Roles of Perceived Organizational Support and Quality of Leader-Member Exchange. Psychol Rep 2024; 127:957-993. [PMID: 36154339 DOI: 10.1177/00332941221129135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Job insecurity can trigger cynical attitudes and ultimately lead to harmful behaviors in organizations under the current fast-changing business environment. Drawing on psychological contract theory, this study aimed to investigate the relationship between job insecurity and counterproductive work behavior (CWB) by focusing on the mediating role of organizational cynicism and moderating roles of perceived organizational support (POS) and leader-member exchange (LMX). The data used for the analysis came from a survey that targeted tourism-related industries in South Korea, and 296 responses were finally analyzed. We analyzed reliability, correlation, and mediation, and conducted confirmatory factor analysis, regression analysis, and moderation analysis using SPSS PROCESS macro v. 3.5, with AMOS v. 25.0. The key findings of this study are as follows. First, we found that job insecurity was positively related to CWB. Second, organizational cynicism mediated the relationship between job insecurity and CWB. Third, POS and LMX intensified the negative effects of job insecurity and organizational cynicism, affecting CWB. These results imply that employees with a high level of POS and LMX are likely to have opportunistic behaviors (e.g., abuse, absences, sabotage) by abusing the support and trust from their organizations. The implications for research and practice, limitations, and directions for future research are discussed.
Collapse
Affiliation(s)
- Su Min Kim
- Gachon University, Seongnam, Republic of Korea
| | - Sung Jun Jo
- Gachon University, Seongnam, Republic of Korea
| |
Collapse
|
3
|
Park S, Kim DE, Kim SM, Choi J, Park SJ, Lee HY, Chun EJ. Association of epicardial adipose tissue with metabolic risk factors on cardiovascular outcomes: serial coronary computed tomography angiography study. Korean J Intern Med 2024; 39:283-294. [PMID: 38351679 PMCID: PMC10918372 DOI: 10.3904/kjim.2023.389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 11/26/2023] [Accepted: 11/29/2023] [Indexed: 03/07/2024] Open
Abstract
BACKGROUND/AIMS Epicardial adipose tissue (EAT) shares pathophysiological properties with other visceral fats and potentially triggers local inflammation. However, the association of EAT with cardiovascular disease (CVD) is still debatable. The study aimed to observe the changes and associations in EAT and risk factors over time, as well as to investigate whether EAT was associated with CVD. METHODS A total of 762 participants from Seoul National University Hospital (SNUH) and SNUH Gangnam Center were included in this study. EAT was measured using coronary computed tomography angiography. RESULTS Baseline EAT level was positively associated with body mass index (BMI), calcium score, atherosclerotic cardiovascular disease (ASCVD) 10-year risk score, glucose, triglycerides (TG)/high-density lipoprotein (HDL), but not with total cholesterol, low-density lipoprotein (LDL). At follow-up, EAT levels increased in all groups, with low EAT groups demonstrating a significant increase in EAT per year. Change in EAT was associated with a change in BMI, TG/HDL, and glucose, while changes in LDL, calcium score, and ASCVD 10-year risk score were not associated. Although calcium score and ASCVD 10-year risk score were associated with CVD events, baseline information of EAT, baseline EAT/body surface area, or EAT change was not available. CONCLUSION Metabolic risks, e.g., BMI, TG/HDL, and glucose, were associated with EAT change per year, whereas classical CVD risks, e.g., LDL, calcium score, and ASCVD 10-year risk score, were not. The actual CVD event was not associated with EAT volume, warranting future studies combining qualitative assessments with quantitative ones.
Collapse
Affiliation(s)
- Sungjoon Park
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - Dong Eun Kim
- Seoul National University College of Medicine, Seoul, Korea
| | - Su Min Kim
- Seoul National University College of Medicine, Seoul, Korea
| | - JungMin Choi
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - Sang Joon Park
- Research and Science Division, Research and Development Center, MEDICALIP Co. Ltd., Seoul, Korea
| | - Hae-Young Lee
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Eun Ju Chun
- Division of Radiology, Seoul National University Bundang Hospital, Seongnam, Korea
| |
Collapse
|
4
|
Choi W, Choe MS, Kim SM, Kim SJ, Lee J, Lee Y, Lee SM, Dho SH, Lee MY, Kim LK. RFX4 is an intrinsic factor for neuronal differentiation through induction of proneural genes POU3F2 and NEUROD1. Cell Mol Life Sci 2024; 81:99. [PMID: 38386071 PMCID: PMC10884155 DOI: 10.1007/s00018-024-05129-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/27/2023] [Accepted: 01/15/2024] [Indexed: 02/23/2024]
Abstract
Proneural genes play a crucial role in neuronal differentiation. However, our understanding of the regulatory mechanisms governing proneural genes during neuronal differentiation remains limited. RFX4, identified as a candidate regulator of proneural genes, has been reported to be associated with the development of neuropsychiatric disorders. To uncover the regulatory relationship, we utilized a combination of multi-omics data, including ATAC-seq, ChIP-seq, Hi-C, and RNA-seq, to identify RFX4 as an upstream regulator of proneural genes. We further validated the role of RFX4 using an in vitro model of neuronal differentiation with RFX4 knock-in and a CRISPR-Cas9 knock-out system. As a result, we found that RFX4 directly interacts with the promoters of POU3F2 and NEUROD1. Transcriptomic analysis revealed a set of genes associated with neuronal development, which are highly implicated in the development of neuropsychiatric disorders, including schizophrenia. Notably, ectopic expression of RFX4 can drive human embryonic stem cells toward a neuronal fate. Our results strongly indicate that RFX4 serves as a direct upstream regulator of proneural genes, a role that is essential for normal neuronal development. Impairments in RFX4 function could potentially be related to the development of various neuropsychiatric disorders. However, understanding the precise mechanisms by which the RFX4 gene influences the onset of neuropsychiatric disorders requires further investigation through human genetic studies.
Collapse
Affiliation(s)
- Wonyoung Choi
- Interdisciplinary Program of Integrated OMICS for Biomedical Science, The Graduate School, Yonsei University, Seoul, Korea
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu, Republic of Korea
| | - Mu Seog Choe
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu, Republic of Korea
| | - Su Min Kim
- Department of Biomedical Sciences, Graduate School of Medical Science, Brain Korea 21 Project, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, 06230, Republic of Korea
| | - So Jin Kim
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu, Republic of Korea
| | - Jiyeon Lee
- Department of Biomedical Sciences, Graduate School of Medical Science, Brain Korea 21 Project, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, 06230, Republic of Korea
| | - Yeongun Lee
- Department of Biomedical Sciences, Graduate School of Medical Science, Brain Korea 21 Project, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, 06230, Republic of Korea
| | - Sun-Min Lee
- Department of Physics, Konkuk University, Seoul, Republic of Korea
| | - So Hee Dho
- Department of Biomedical Sciences, Graduate School of Medical Science, Brain Korea 21 Project, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, 06230, Republic of Korea
| | - Min-Young Lee
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu, Republic of Korea.
| | - Lark Kyun Kim
- Department of Biomedical Sciences, Graduate School of Medical Science, Brain Korea 21 Project, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, 06230, Republic of Korea.
| |
Collapse
|
5
|
Kim JY, Hong JY, Kim SM, Ryu KH, Kim DS, Lee SH, Na JH, Cho HH, Yu J, Lee J. Socio-economic factors and medical conditions affecting regular stomach cancer screening in Korea: a retrospective longitudinal study using national public health data for 11 years. Public Health 2024; 227:70-77. [PMID: 38128357 DOI: 10.1016/j.puhe.2023.11.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 11/03/2023] [Accepted: 11/15/2023] [Indexed: 12/23/2023]
Abstract
OBJECTIVE This study aimed to explore socio-economic factors and medical conditions that affect regular stomach cancer (SC) screening among Korean adults. STUDY DESIGN This was a retrospective observational study. METHODS Study subjects were 5545 adults aged ≥40 years who participated in the 2007-2012 Korean National Health and Nutrition Examination Survey and were followed up to year 2017 based on data linking to the Korean National Health Insurance Service and Korean Health Insurance Review and Assessment. Socio-economic factors included sex, age, residential area, education, occupation, marital status, disability, public and private health insurance, service through local public health organizations, history of cancer except for SC, and family history of SC. Medical factors included six gastric lesions with the possibility of facilitating SC screening, including benign gastric neoplasm, chronic atrophic gastritis, gastric polyp, Helicobacter pylori infection, intestinal metaplasia, and peptic ulcers. The outcome was adherence to SC screening, which was divided into non-adherence, irregular adherence, and regular adherence. RESULTS After adjusting for the effects of socio-economic factors, multivariate ordinal logistic regression revealed that participants with a history of four types of gastric lesions were more likely to regularly participate in SC screening: chronic atrophic gastritis (odds ratio [OR] 1.567; 95% confidence interval [CI] = 1.276-1.923), gastric polyps (OR 1.565; 95% CI = 1.223-2.003), H. pylori infection (OR 1.637; 95% CI = 1.338-2.003), and peptic ulcer (OR 2.226; 95% CI 1.750-2.831). CONCLUSIONS To improve participation in SC screening, it is necessary to implement personalized strategies for individuals at risk for gastric cancer in addition to population-based strategies for vulnerable groups.
Collapse
Affiliation(s)
- J-Y Kim
- Department of Biomedical Informatics, College of Medicine, Konyang University, Daejeon, South Korea; Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Konyang University, Daejeon, South Korea
| | - J Y Hong
- Department of Biomedical Informatics, College of Medicine, Konyang University, Daejeon, South Korea
| | - S M Kim
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Konyang University College of Medicine, 158, Gwanjeodong-ro, Seo-gu, Daejeon, South Korea.
| | - K H Ryu
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Konyang University College of Medicine, 158, Gwanjeodong-ro, Seo-gu, Daejeon, South Korea
| | - D S Kim
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Konyang University College of Medicine, 158, Gwanjeodong-ro, Seo-gu, Daejeon, South Korea
| | - S H Lee
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Konyang University College of Medicine, 158, Gwanjeodong-ro, Seo-gu, Daejeon, South Korea
| | - J H Na
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Konyang University College of Medicine, 158, Gwanjeodong-ro, Seo-gu, Daejeon, South Korea
| | - H H Cho
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Konyang University College of Medicine, 158, Gwanjeodong-ro, Seo-gu, Daejeon, South Korea
| | - J Yu
- Medical Data Research group, Konyang University Hospital, Daejeon, South Korea
| | - J Lee
- Medical Data Research group, Konyang University Hospital, Daejeon, South Korea
| |
Collapse
|
6
|
Kim SM, Jo SY, Park HY, Lee YR, Yu JS, Yoo HH. Investigation of Drug-Interaction Potential for Arthritis Dietary Supplements: Chondroitin Sulfate, Glucosamine, and Methylsulfonylmethane. Molecules 2023; 28:8068. [PMID: 38138558 PMCID: PMC10745882 DOI: 10.3390/molecules28248068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 12/02/2023] [Accepted: 12/12/2023] [Indexed: 12/24/2023] Open
Abstract
Osteoarthritis is one of the leading conditions that promote the consumption of these dietary supplements. Chondroitin sulfate, glucosamine, and methylsulfonylmethane are among the prominent alternative treatments for osteoarthritis. In this study, these dietary supplements were incubated with cytochrome P450 isozyme-specific substrates in human liver microsomes, and the formation of marker metabolites was measured to investigate their inhibitory potential on cytochrome P450 enzyme activities. The results revealed no significant inhibitory effects on seven CYPs, consistent with established related research data. Therefore, these substances are anticipated to have a low potential for cytochrome P450-mediated drug interactions with osteoarthritis medications that are likely to be co-administered. However, given the previous reports of interaction cases involving glucosamine, caution is advised regarding dietary supplement-drug interactions.
Collapse
Affiliation(s)
- Su Min Kim
- Institute of Pharmaceutical Science and Technology, College of Pharmacy, Hanyang University, Ansan 15588, Republic of Korea; (S.M.K.); (S.Y.J.)
| | - So Young Jo
- Institute of Pharmaceutical Science and Technology, College of Pharmacy, Hanyang University, Ansan 15588, Republic of Korea; (S.M.K.); (S.Y.J.)
| | - Ho-Young Park
- Food Functionality Research Division, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea; (H.-Y.P.); (Y.R.L.)
| | - Yu Ra Lee
- Food Functionality Research Division, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea; (H.-Y.P.); (Y.R.L.)
| | - Jun Sang Yu
- Institute of Pharmaceutical Science and Technology, College of Pharmacy, Hanyang University, Ansan 15588, Republic of Korea; (S.M.K.); (S.Y.J.)
| | - Hye Hyun Yoo
- Institute of Pharmaceutical Science and Technology, College of Pharmacy, Hanyang University, Ansan 15588, Republic of Korea; (S.M.K.); (S.Y.J.)
| |
Collapse
|
7
|
Jeon GW, Ahn SY, Kim SM, Yang M, Sung SI, Sung JH, Oh SY, Roh CR, Choi SJ, Chang YS. Antenatal Magnesium Sulfate Is Not Associated With Improved Long-Term Neurodevelopment and Growth in Very Low Birth Weight Infants. J Korean Med Sci 2023; 38:e350. [PMID: 37967876 PMCID: PMC10643250 DOI: 10.3346/jkms.2023.38.e350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 08/06/2023] [Indexed: 11/17/2023] Open
Abstract
BACKGROUND Though antenatal magnesium sulfate (MgSO4) is widely used for fetal neuroprotection, suspicions about the long-term neuroprotection of antenatal MgSO4 have been raised. METHODS We investigated short- and long-term outcomes of antenatal MgSO4 use for 468 infants weighing < 1,500 g with a gestational age of 24-31 weeks. RESULTS Short-term morbidities and the risk of developmental delay, hearing loss, and cerebral palsy at a corrected age of 18-24 months and 3 years of age did not decrease in the MgSO4 group (infants who were exposed to MgSO4 for any purpose) or neuroprotection group (infants who were exposed to MgSO4 for fetal neuroprotection) compared with the control group (infants who were not exposed to MgSO4). The z-scores of weight, height, and head circumference did not increase in the MgSO4 group or neuroprotection group compared with the control group. CONCLUSION Antenatal MgSO4 including MgSO4 for neuroprotection did not have beneficial effects on long-term neurodevelopmental and growth outcomes.
Collapse
Affiliation(s)
- Ga Won Jeon
- Department of Pediatrics, Inha University Hospital, Inha University College of Medicine, Incheon, Korea
| | - So Yoon Ahn
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Su Min Kim
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
- Department of Clinical Research Design and Evaluation, Samsung Advanced Institute for Health Sciences & Technology (SAIHST), Sungkyunkwan University, Seoul, Korea
| | - Misun Yang
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Se In Sung
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Ji-Hee Sung
- Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Soo-Young Oh
- Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences & Technology (SAIHST), Samsung Medical Center, Seoul, Korea
| | - Cheong-Rae Roh
- Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Suk-Joo Choi
- Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
| | - Yun Sil Chang
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
- Department of Clinical Research Design and Evaluation, Samsung Advanced Institute for Health Sciences & Technology (SAIHST), Sungkyunkwan University, Seoul, Korea
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences & Technology (SAIHST), Samsung Medical Center, Seoul, Korea.
| |
Collapse
|
8
|
Kwon IJ, Park JW, Kim SM, Lee KH, Park CO. Allergen-specific immunotherapy improves alopecia totalis in a severe atopic dermatitis patient. J Dermatol 2023; 50:1353-1356. [PMID: 37248786 DOI: 10.1111/1346-8138.16841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 04/12/2023] [Accepted: 05/06/2023] [Indexed: 05/31/2023]
Abstract
House dust mite (HDM) is the most common allergen exacerbating atopic dermatitis (AD), and allergen-specific immunotherapy (AIT) using HDM exhibited significant improvements in previous studies. Alopecia can occur as a complication of AD. Alopecia totalis (AT), a severe form of alopecia areata (AA), does not respond well to treatment and the chance of full recovery is less than 10%. For extensive hair loss, topical immunotherapy such as diphenylcyclopropenone (DPCP) is used as the first-line treatment. However, since DPCP is a kind of contact allergen, it has the potential to exacerbate AD. A 38-year-old man with AD and AA visited our clinic with symptoms worsening from 3 months ago. Although taking oral methylprednisolone (8 mg/day) and cyclosporine (100 mg/day) for 3 months, he has lost over 90% of his hair and the Eczema Area and Severity Index (EASI) was 43. Total serum immunoglobulin E (IgE) levels were 4454 kU/L (normal <100 kU/L) and the specific IgE levels for Dermatophagoides pteronyssinus and Dermatophagoides farinae following ImmunoCAP® were 20.8 and 37.4 kU/L, respectively. This patient did not respond well to previous treatment and was reluctant to use long-term steroids, so subcutaneous AIT using HDM was administered along with oral cyclosporine (100 mg/day). Topical tacrolimus was also applied to the AD lesions throughout the body. To reduce itching, nonsedative antihistamines were used if necessary. Hair loss was almost completely improved 1 year after the AIT initiation and the skin lesions of AD also improved (EASI 2.4). The specific IgE levels for D. pteronyssinus and D. farinae were 3.73 and 7.16 kU/L, respectively. Herein, we report a patient with promising results following AIT for AT with severe AD. In severe alopecic patients with AD refractory to conventional treatment, including immunosuppressants, AIT could be considered as a treatment option.
Collapse
Affiliation(s)
- Il Joo Kwon
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - Jung Won Park
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - Su Min Kim
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - Kwang Hoon Lee
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - Chang Ook Park
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, South Korea
- Institute of Allergy, Yonsei University College of Medicine, Seoul, South Korea
| |
Collapse
|
9
|
Pyo JH, Lee SY, Lee IJ, Kim SM, Kim JW. Beneficial Role of Multi-Disciplinary Treatment for Anaplastic Thyroid Cancer with Initial Distant Metastasis. Int J Radiat Oncol Biol Phys 2023; 117:e616-e617. [PMID: 37785850 DOI: 10.1016/j.ijrobp.2023.06.1996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Anaplastic thyroid cancer (ATC) is a rare, highly aggressive tumor, with median survival around 5 months. Approximately half of the ATC patients presents with distant metastases at diagnosis, showing even more devastating prognosis, yet no outcome analysis had been reported. In this study, we aim to evaluate the clinical outcome of M1 ATC patients, and to define the group of patients who would benefit from local treatment based on multi-disciplinary approach. MATERIALS/METHODS A total of 133 histology-confirmed ATC patients underwent protocol-based multidisciplinary treatment including surgery and chemoradiotherapy (CRT) between May 2016 and January 2022. Patients received intensity-modulated radiotherapy of 30 fractions concurrently with paclitaxel on days 1, 8 and 15 every 4 weeks, and lenvatinib was added upon progression. After 18 fractions of CRT, interim response analysis using modified RECIST was conducted for adaptive treatment planning. We reviewed 58 patients with distant metastasis at diagnosis (stage IVC). Overall survival (OS) and progression-free survival (PFS) were measured from the day of diagnosis. RESULTS Most common metastatic site was lung (91.4%), followed by bone (31.0%) and brain (5.2%). Lenvatinib was added for 35 patients after any sign of progression. Fourteen patients received upfront surgery (16 debulking and 5 total) followed by adjuvant CRT in 16 patients. Thirty-one patients received upfront CRT with 2 patients receiving total resection after sufficient down-staging. Six (10%) patients could not complete radiotherapy but continued receiving systemic treatment. The median follow-up was 5.9 months. The median and 1-year OS were 6.2 months and 20.5%, and PFS were 3.7 months and 3.5%. Total RT dose over 60 Gy significantly improved median OS (7.5 vs 4.1 months, p = 0.012) and median PFS (4.4 vs 3.0, p = 0.010). Patients with less than 10 initial metastatic tumors showed better median OS (9.1 vs 4.6 months, p = 0.002) but not PFS (5.1 vs 3.6, p = 0.485). At interim analysis, early response (CR, PR and SD) of primary tumor was not associated with survival, while progression of distant metastases showed significantly worse median OS (9.8 vs 4.6 months, p = 0.001). More than 10 metastatic tumors (HR 2.73, 95% CI 1.32-5.66) and stable metastasis at interim analysis (HR 2.39, 95% CI 1.04-5.48) remained as significant factor in the multivariable cox regression analysis. Median OS and PFS of patients with less than 10 metastases showing no progression at interim analysis were 9.1 months, and 5.1 months. CONCLUSION Local treatment combined with chemotherapy for M1 ATC patients showed outcome comparable to those of non-metastatic ATC results. Active local treatment should be considered especially for patients with less than 10 metastases, and patients without distant progression in early response evaluation.
Collapse
Affiliation(s)
- J H Pyo
- Department of Radiation Oncology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea, Republic of (South) Korea
| | - S Y Lee
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea, Republic of (South) Korea
| | - I J Lee
- Department of Radiation Oncology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea, Republic of (South) Korea
| | - S M Kim
- Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea, Republic of (South) Korea
| | - J W Kim
- Department of Radiation Oncology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea, Republic of (South) Korea
| |
Collapse
|
10
|
Gul N, Kim SM, Ali J, Kim J. UAV aided virtual cooperative spectrum sensing for cognitive radio networks. PLoS One 2023; 18:e0291077. [PMID: 37669304 PMCID: PMC10479920 DOI: 10.1371/journal.pone.0291077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 08/22/2023] [Indexed: 09/07/2023] Open
Abstract
Cooperative spectrum sensing (CSS) involves multiple secondary users (SUs) reporting primary user (PU) channel sensing states to the fusion center (FC). However, the high overheads associated with multi-user CSS impose power limitations that limit its usefulness in unmanned aerial vehicle (UAV) networks. To address this challenge, we propose a virtual CSS, where a single UAV conducts CSS while following a circular flight trajectory in the air. The novelty of our approach is presenting a working frame structure for the UAV flight, including sensing and data transmission periods with further division of the sensing time into mini-sensing slots. In the virtual CSS, UAV performs local sensing decisions in each mini-slot and accumulates them for a final decision. The proposed virtual CSS scheme exploits sequential decision fusion (SDF), which sequentially adds individual mini-slot decisions. Additionally, we leverage machine learning (ML), employing AdaBoost ensembling classifier (ENC), to inspect flight conditions and reconfigure mini-slot periods dynamically for both traditional decision fusion (TDF) and our proposed SDF schemes. Furthermore, we identify an optimal decision threshold (ODT) for the proposed SDF, enabling the comparison of sequential results with an adjustable threshold through majority voting. This novel approach results in energy efficiency and improved throughput for virtual CSS using SDF, surpassing the performance of TDF, which relies on collecting entire mini-slot reports for its final decision. Simulation results demonstrate the effectiveness of the proposed SDF following the ENCODT (SDF-ENCODT) scheme compared to existing techniques from the literature. We explore varying levels of UAV flight velocities, moving radius, detection probability demand, and channel signal-to-noise ratio (SNR), reinforcing the significance of our contribution. Our research highlights the motivation to address spectrum scarcity in UAV communication by proposing an innovative virtual CSS scheme based on SDF. The proposed approach enhances spectrum utilization, overcomes power limitations, and substantially improves CSS for UAV networks.
Collapse
Affiliation(s)
- Noor Gul
- Department of Electronics, University of Peshawar, Peshawar, Khyber Pakhtunkhwa, Pakistan
- Department of Electronics Engineering, Tech University of Korea, Siheung, Gyeonggi, Republic of Korea
| | - Su Min Kim
- Department of Electronics Engineering, Tech University of Korea, Siheung, Gyeonggi, Republic of Korea
| | - Jehad Ali
- Department of AI Convergence Network, AJOU University, Suwon, Republic of Korea
| | - Junsu Kim
- Department of Electronics Engineering, Tech University of Korea, Siheung, Gyeonggi, Republic of Korea
| |
Collapse
|
11
|
Lee KH, Kim JD, Jeong DH, Kim SM, Park CO, Lee KH. Development of a novel microneedle platform for biomarker assessment of atopic dermatitis patients. Skin Res Technol 2023; 29:e13413. [PMID: 37522507 PMCID: PMC10345975 DOI: 10.1111/srt.13413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 07/04/2023] [Indexed: 08/01/2023]
Abstract
BACKGROUND Atopic dermatitis (AD) is a chronic inflammatory skin disease whose pathogenesis, cause, and treatment have been extensively studied. The association of AD with Th2 cytokines is well known; therefore, the analysis of this association is crucial for the diagnosis and treatment of AD. This study aimed to present a new method for measuring protein biomarkers in patients with AD, before and after treatment, using minimally invasive microneedles. MATERIALS AND METHODS First, hyaluronic acid-loaded microneedle patches (HA-MNs) for skin sample collection were fabricated. Next, after Institutional Review Board approval, 20 patients with AD were recruited and skin samples were taken before and after treatment using four different sampling techniques: (1) tape stripping, (2) hydrocolloid patches, (3) hollow microneedles, and (4) HA-MNs. Lastly, proteins were isolated from the collected samples, and AD-related biomarkers were analyzed by enzyme-linked immunosorbent assay. RESULTS Proteins were successfully extracted from the skin samples collected by tape stripping, hydrocolloid patches, and HA-MNs, except hollow microneedles. Interleukin (IL)-4, IL-13, and interferon-γ were detected in the HA-MNs only. By comparing the biomarker level correlation before and after treatment and the improvement score of the patients, we observed a significant negative correlation between IL-4 and IL-13 with an improvement in AD symptoms. CONCLUSION Overall, our results verified that HA-MNs can be used to effectively analyze protein levels of biomarkers from skin metabolites of patients with AD and can be applied to monitor the treatment progress of patients with AD in a minimally invasive manner.
Collapse
Affiliation(s)
| | | | | | - Su Min Kim
- Department of Dermatology and Cutaneous Biology Research InstituteSeverance HospitalYonsei University College of MedicineSeoulRepublic of Korea
| | - Chang Ook Park
- Department of Dermatology and Cutaneous Biology Research InstituteSeverance HospitalYonsei University College of MedicineSeoulRepublic of Korea
| | | |
Collapse
|
12
|
Kang J, Kim SJ, Moon SH, Kim SM, Seo Y, Cha WC, Son MH. Using Real-Time Interaction Analysis to Explore Human-Robot Interaction. Stud Health Technol Inform 2023; 302:651-655. [PMID: 37203771 DOI: 10.3233/shti230229] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Despite the increasing presence of social robots (SRs) in Human-Robot Interaction, there are few studies that quantify these interactions and explore children's attitudes by analyzing real-time data as they communicate with SRs. Therefore, we attempted to explore the interaction between pediatric patients and SRs by analyzing the interaction log collected from real-time. This study is a retrospective analysis of data collected in a prospective study conducted on 10 pediatric cancer patients at tertiary hospitals in Korea. Using the Wizard of Oz method, we collected the interaction log during the interaction between pediatric cancer patients and the robot. Out of the collected data, 955 sentences from the robot and 332 sentences from the children were available for analysis, except for the logs that were missing due to environmental errors. we analyzed the delay time from saving the interaction log and the sentence similarity of the interaction log. The interaction log delay time between robot and child was 5.01 seconds. And the child's delay time averaged 7.2 seconds, which was longer than the robot's delay time of 4.29 seconds. Additionally, as a result of analyzing the sentence similarity of the interaction log, the robot (97.2%) was higher than the children (46.2%). The results of the sentiment analysis of the patient's attitude toward the robot were 73% neutral, 13.59% positive, and 12.42% negative. The observational evaluations of pediatric psychological experts identified curiosity (n=7, 70.0%), activity (n=5, 50.0%), passivity (n=5, 50.0%), sympathy (n=7, 70.0%), concentration (n=6, 60.0%), high interest (n=5, 50.0%), positive attitude (n=9, 90.0%), and low interaction initiative (n=6, 60.0%). This study made it possible to explore the feasibility of interaction with SRs and to confirm differences in attitudes toward robots according to child characteristics. To increase the feasibility of human-robot interaction, measures such as improving the completeness of log records by enhancing the network environment are required.
Collapse
Affiliation(s)
- Jiye Kang
- Smart Health Lab, Department of Digital Health, Samsung Advanced Institute for Health Science & Technology (SAIHST), Sungkyunkwan University, Seoul, Republic of Korea
| | - Su Jin Kim
- Smart Health Lab, Department of Digital Health, Samsung Advanced Institute for Health Science & Technology (SAIHST), Sungkyunkwan University, Seoul, Republic of Korea
| | - Su Hyun Moon
- Smart Health Lab, Department of Digital Health, Samsung Advanced Institute for Health Science & Technology (SAIHST), Sungkyunkwan University, Seoul, Republic of Korea
| | - Su Min Kim
- Smart Health Lab, Department of Digital Health, Samsung Advanced Institute for Health Science & Technology (SAIHST), Sungkyunkwan University, Seoul, Republic of Korea
| | - Yujin Seo
- Smart Health Lab, Department of Digital Health, Samsung Advanced Institute for Health Science & Technology (SAIHST), Sungkyunkwan University, Seoul, Republic of Korea
| | - Won Chul Cha
- Smart Health Lab, Department of Digital Health, Samsung Advanced Institute for Health Science & Technology (SAIHST), Sungkyunkwan University, Seoul, Republic of Korea
- Department of Emergency Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Meong Hi Son
- Smart Health Lab, Department of Digital Health, Samsung Advanced Institute for Health Science & Technology (SAIHST), Sungkyunkwan University, Seoul, Republic of Korea
- Department of Emergency Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| |
Collapse
|
13
|
Yeo EJ, Shin MJ, Youn GS, Park JH, Yeo HJ, Kwon HJ, Lee LR, Kim NY, Kwon SY, Kim SM, Lee J, Lee KW, Lee CH, Cho YJ, Kwon OS, Kim DW, Jung HY, Eum WS, Choi SY. Tat-RAN attenuates brain ischemic injury in hippocampal HT-22 cells and ischemia animal model. Neurochem Int 2023; 167:105538. [PMID: 37207854 DOI: 10.1016/j.neuint.2023.105538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 04/30/2023] [Accepted: 05/07/2023] [Indexed: 05/21/2023]
Abstract
Oxidative stress plays a key role in the pathogenesis of neuronal injury, including ischemia. Ras-related nuclear protein (RAN), a member of the Ras superfamily, involves in a variety of biological roles, such as cell division, proliferation, and signal transduction. Although RAN reveals antioxidant effect, its precise neuroprotective mechanisms are still unclear. Therefore, we investigated the effects of RAN on HT-22 cell which were exposed to H2O2-induced oxidative stress and ischemia animal model by using the cell permeable Tat-RAN fusion protein. We showed that Tat-RAN transduced into HT-22 cells, and markedly inhibited cell death, DNA fragmentation, and reactive oxygen species (ROS) generation under oxidative stress. This fusion protein also controlled cellular signaling pathways, including mitogen-activated protein kinases (MAPKs), NF-κB, and apoptosis (Caspase-3, p53, Bax and Bcl-2). In the cerebral forebrain ischemia animal model, Tat-RAN significantly inhibited both neuronal cell death, and astrocyte and microglia activation. These results indicate that RAN significantly protects against hippocampal neuronal cell death, suggesting Tat-RAN will help to develop the therapies for neuronal brain diseases including ischemic injury.
Collapse
Affiliation(s)
- Eun Ji Yeo
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, 24252, South Korea
| | - Min Jea Shin
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, 24252, South Korea
| | - Gi Soo Youn
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, 24252, South Korea
| | - Jung Hwan Park
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, 24252, South Korea
| | - Hyeon Ji Yeo
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, 24252, South Korea
| | - Hyun Jung Kwon
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, 24252, South Korea
| | - Lee Re Lee
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, 24252, South Korea
| | - Na Yeon Kim
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, 24252, South Korea
| | - Su Yeon Kwon
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, 24252, South Korea
| | - Su Min Kim
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, 24252, South Korea
| | - Jaehak Lee
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, 24252, South Korea
| | - Keun Wook Lee
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, 24252, South Korea
| | - Chan Hee Lee
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, 24252, South Korea
| | - Yong-Jun Cho
- Department of Neurosurgery, Hallym University Medical Center, Chuncheon, 24253, South Korea
| | - Oh-Shin Kwon
- School of Life Sciences, College of Natural Sciences Kyungpook National University, Taegu, 41566, South Korea
| | - Dae Won Kim
- Department of Biochemistry and Molecular Biology, Research Institute of Oral Sciences, College of Dentistry, Gangneung-Wonju National University, Gangneung, 25457, South Korea
| | - Hyo Young Jung
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon, 34134, South Korea
| | - Won Sik Eum
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, 24252, South Korea.
| | - Soo Young Choi
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, 24252, South Korea.
| |
Collapse
|
14
|
Shin MJ, Eum WS, Youn GS, Park JH, Yeo HJ, Yeo EJ, Kwon HJ, Sohn EJ, Lee LR, Kim NY, Kwon SY, Kim SM, Jung HY, Kim DS, Cho SW, Kwon OS, Kim DW, Choi SY. Protective effects of cell permeable Tat-PIM2 protein on oxidative stress induced dopaminergic neuronal cell death. Heliyon 2023; 9:e15945. [PMID: 37223703 PMCID: PMC10200856 DOI: 10.1016/j.heliyon.2023.e15945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 04/27/2023] [Accepted: 04/27/2023] [Indexed: 05/25/2023] Open
Abstract
Background Oxidative stress is considered as one of the main causes of Parkinson's disease (PD), however the exact etiology of PD is still unknown. Although it is known that Proviral Integration Moloney-2 (PIM2) promotes cell survival by its ability to inhibit formation of reactive oxygen species (ROS) in the brain, the precise functional role of PIM2 in PD has not been fully studied yet. Objective We investigated the protective effect of PIM2 against apoptosis of dopaminergic neuronal cells caused by oxidative stress-induced ROS damage by using the cell permeable Tat-PIM2 fusion protein in vitro and in vivo. Methods Transduction of Tat-PIM2 into SH-SY5Y cells and apoptotic signaling pathways were determined by Western blot analysis. Intracellular ROS production and DNA damage was confirmed by DCF-DA and TUNEL staining. Cell viability was determined by MTT assay. PD animal model was induced by 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) and protective effects were examined using immunohistochemistry. Results Transduced Tat-PIM2 inhibited the apoptotic caspase signaling and reduced the production of ROS induced by 1-methyl-4-phenylpyridinium (MPP+) in SH-SY5Y cells. Furthermore, we confirmed that Tat-PIM2 transduced into the substantia nigra (SN) region through the blood-brain barrier and this protein protected the Tyrosine hydroxylase-positive cells by observation of immunohistostaining. Tat-PIM2 also regulated antioxidant biomolecules such as SOD1, catalase, 4-HNE, and 8-OHdG which reduce the formation of ROS in the MPTP-induced PD mouse model. Conclusion These results indicated that Tat-PIM2 markedly inhibited the loss of dopaminergic neurons by reducing ROS damage, suggesting that Tat-PIM2 might be a suitable therapeutic agent for PD.
Collapse
Affiliation(s)
- Min Jea Shin
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| | - Won Sik Eum
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| | - Gi Soo Youn
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| | - Jung Hwan Park
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| | - Hyeon Ji Yeo
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| | - Eun Ji Yeo
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| | - Hyun Jung Kwon
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| | - Eun Jeong Sohn
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| | - Lee Re Lee
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| | - Na Yeon Kim
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| | - Su Yeon Kwon
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| | - Su Min Kim
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| | - Hyo Young Jung
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon, 34134, South Korea
| | - Duk-Soo Kim
- Department of Anatomy and BK21 FOUR Project, College of Medicine, Soonchunhyang University, Cheonan-si 31538, South Korea
| | - Sung-Woo Cho
- Department of Biochemistry and Molecular Biology, University of Ulsan College of Medicine, Seoul 05505, South Korea
| | - Oh-Shin Kwon
- School of Life Sciences, College of Natural Sciences Kyungpook National University, Taegu 41566, South Korea
| | - Dae Won Kim
- Department of Biochemistry and Molecular Biology, Research Institute of Oral Sciences, College of Dentistry, Gangneung-Wonju National University, Gangneung 25457, South Korea
| | - Soo Young Choi
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| |
Collapse
|
15
|
Kim SM, Cho GJ. Analysis of Various Facial Expressions of Horses as a Welfare Indicator Using Deep Learning. Vet Sci 2023; 10:vetsci10040283. [PMID: 37104439 PMCID: PMC10141195 DOI: 10.3390/vetsci10040283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 04/04/2023] [Accepted: 04/06/2023] [Indexed: 04/28/2023] Open
Abstract
This study aimed to prove that deep learning can be effectively used for identifying various equine facial expressions as welfare indicators. In this study, a total of 749 horses (healthy: 586 and experiencing pain: 163) were investigated. Moreover, a model for recognizing facial expressions based on images and their classification into four categories, i.e., resting horses (RH), horses with pain (HP), horses immediately after exercise (HE), and horseshoeing horses (HH), was developed. The normalization of equine facial posture revealed that the profile (99.45%) had higher accuracy than the front (97.59%). The eyes-nose-ears detection model achieved an accuracy of 98.75% in training, 81.44% in validation, and 88.1% in testing, with an average accuracy of 89.43%. Overall, the average classification accuracy was high; however, the accuracy of pain classification was low. These results imply that various facial expressions in addition to pain may exist in horses depending on the situation, degree of pain, and type of pain experienced by horses. Furthermore, automatic pain and stress recognition would greatly enhance the identification of pain and other emotional states, thereby improving the quality of equine welfare.
Collapse
Affiliation(s)
- Su Min Kim
- College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Gil Jae Cho
- College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
| |
Collapse
|
16
|
Choi SK, Chung HS, Ko HS, Gen Y, Kim SM, Shin JE, Kil KC, Kim YH, Wie JH, Jo YS. Hemorrhagic morbidity in nulliparous patients with placenta previa without placenta accrete spectrum disorders. Niger J Clin Pract 2023; 26:432-437. [PMID: 37203107 DOI: 10.4103/njcp.njcp_456_22] [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: 05/20/2023]
Abstract
Background Placental adhesion spectrum (PAS) is a disease in which the trophoblast invades the myometrium, and is a well-known high-risk condition associated with placental previa. Aim The morbidity of nulliparous women with placenta previa without PAS disorders is unknown. Patients and Methods The data from nulliparous women who underwent cesarean delivery were collected retrospectively. The women were dichotomized into malpresentation (MP) and placenta previa groups. The placenta previa group was categorized into previa (PS) and low-lying (LL) groups. When the placenta covers the internal cervical os, it is called placenta previa, when the placenta is near the cervical os, it is called the low-lying placenta. Their maternal hemorrhagic morbidity and neonatal outcomes were analyzed and adjusted using multivariate analysis based on univariate analysis. Results A total of 1269 women were enrolled: 781 women in the MP group and 488 women in the PP-LL group. Regarding packed red blood cell transfusion, PP and LL had adjusted odds ratio (aOR) of 14.7 (95% confidence interval (CI): 6.6 - 32.5), and 11.3 (95% CI: 4.9 - 26) during admission, and 51.2 (95% CI: 22.1 - 122.7) and 10.3 (95% CI: 3.9 - 26.6) during operation, respectively. For intensive care unit admission, PS and LL had aOR of 15.9 (95% CI: 6.5 - 39.1) and 3.5 (95% CI: 1.1 - 10.9), respectively. No women had cesarean hysterectomy, major surgical complications, or maternal death. Conclusion Despite placenta previa without PAS disorders, maternal hemorrhagic morbidity was significantly increased. Thus, our results highlight the need for resources for those women with evidence of placenta previa including a low-lying placenta, even if those women do not meet PAS disorder criteria. In addition, placenta previa without PAS disorder was not associated with critical maternal complications.
Collapse
Affiliation(s)
- S K Choi
- Department of Obstetrics and Gynaecology, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - H S Chung
- Department of Anaesthesiology and Pain Medicine, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - H S Ko
- Department of Obstetrics and Gynaecology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Y Gen
- Department of Obstetrics and Gynaecology, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - S M Kim
- Department of Obstetrics and Gynaecology, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - J E Shin
- Department of Obstetrics and Gynaecology, Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - K C Kil
- Department of Obstetrics and Gynaecology, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Y H Kim
- Department of Obstetrics and Gynaecology, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - J H Wie
- Department of Obstetrics and Gynaecology, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Y S Jo
- Department of Obstetrics and Gynaecology, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| |
Collapse
|
17
|
Lee AS, Kim SM, Kim KR, Park C, Lee DG, Heo HR, Cha HJ, Kim CS. A colorimetric lateral flow immunoassay based on oriented antibody immobilization for sensitive detection of SARS-CoV-2. Sens Actuators B Chem 2023; 379:133245. [PMID: 36589904 PMCID: PMC9791791 DOI: 10.1016/j.snb.2022.133245] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 12/14/2022] [Accepted: 12/24/2022] [Indexed: 06/12/2023]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causes coronavirus disease 2019 (COVID-19). The high human-to-human transmission and rapid evolution of SARS-CoV-2 have resulted in a worldwide pandemic. To contain SARS-CoV-2, it is essential to efficiently control the transmission of the virus through the early diagnosis of infected individuals, including asymptomatic people. Therefore, a rapid and accurate assay is vital for the early diagnosis of SARS-CoV-2 in suspected individuals. In this study, we developed a colorimetric lateral flow immunoassay (LFIA) in which a CBP31-BC linker was used to immobilize antibodies on a cellulose membrane in an oriented manner. The developed LFIA enabled sensitive detection of cultured SARS-CoV-2 in 15 min with a detection limit of 5 × 104 copies/mL. The clinical performance of the LFIA for detecting SARS-CoV-2 was evaluated using 19 clinical samples validated by reverse transcription-polymerase chain reaction (RT-PCR). The LFIA detected all the positive and negative samples accurately, corresponding to 100% accuracy. Importantly, patient samples with low viral loads were accurately identified. Thus, the proposed method can provide a useful platform for rapid and accurate point-of-care testing of SARS-CoV-2 in infected individuals to efficiently control the COVID-19 pandemic.
Collapse
Affiliation(s)
- Ae Sol Lee
- Graduate School of Biochemistry, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Su Min Kim
- Graduate School of Biochemistry, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Kyeong Rok Kim
- Graduate School of Biochemistry, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Chulmin Park
- Vaccine Bio Research Institute, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Dong-Gun Lee
- Vaccine Bio Research Institute, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul 06591, Republic of Korea
- Division of Infectious Diseases, Department of Internal Medicine, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Hye Ryoung Heo
- Senotherapy-based Metabolic Disease Control Research Center, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Hyung Joon Cha
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang 37673, Republic of Korea
| | - Chang Sup Kim
- Graduate School of Biochemistry, Yeungnam University, Gyeongsan 38541, Republic of Korea
- School of Chemistry and Biochemistry, Yeungnam University, Gyeongsan 38541, Republic of Korea
| |
Collapse
|
18
|
Choi YJ, Yeo HJ, Shin MJ, Youn GS, Park JH, Yeo EJ, Kwon HJ, Lee LR, Kim NY, Kwon SY, Kim SM, Kim DW, Jung HY, Kwon OS, Lee CH, Park JK, Lee KW, Han KH, Park J, Eum WS, Choi SY. Tat-GSTpi Inhibits Dopaminergic Cells against MPP+-Induced Cellular Damage via the Reduction of Oxidative Stress and MAPK Activation. Biomedicines 2023; 11:biomedicines11030836. [PMID: 36979816 PMCID: PMC10045456 DOI: 10.3390/biomedicines11030836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 02/28/2023] [Accepted: 03/07/2023] [Indexed: 03/12/2023] Open
Abstract
Glutathione S-transferase pi (GSTpi) is a member of the GST family and plays many critical roles in cellular processes, including anti-oxidative and signal transduction. However, the role of anti-oxidant enzyme GSTpi against dopaminergic neuronal cell death has not been fully investigated. In the present study, we investigated the roles of cell permeable Tat-GSTpi fusion protein in a SH-SY5Y cell and a Parkinson’s disease (PD) mouse model. In the 1-methyl-4-phenylpyridinium (MPP+)-exposed cells, Tat-GSTpi protein decreased DNA damage and reactive oxygen species (ROS) generation. Furthermore, this fusion protein increased cell viability by regulating MAPKs, Bcl-2, and Bax signaling. In addition, Tat-GSTpi protein delivered into the substantia nigra (SN) of mice brains protected dopaminergic neuronal cell death in the 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced PD animal model. Our results indicate that the Tat-GSTpi protein inhibited cell death from MPP+- and MPTP-induced damage, suggesting that it plays a protective role during the loss of dopaminergic neurons in PD and that it could help to identify the mechanism responsible for neurodegenerative diseases, including PD.
Collapse
Affiliation(s)
- Yeon Joo Choi
- Department of Biomedical Science, Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, Republic of Korea
| | - Hyeon Ji Yeo
- Department of Biomedical Science, Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, Republic of Korea
| | - Min Jea Shin
- Department of Biomedical Science, Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, Republic of Korea
| | - Gi Soo Youn
- Department of Biomedical Science, Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, Republic of Korea
| | - Jung Hwan Park
- Department of Biomedical Science, Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, Republic of Korea
| | - Eun Ji Yeo
- Department of Biomedical Science, Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, Republic of Korea
| | - Hyun Jung Kwon
- Department of Biomedical Science, Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, Republic of Korea
| | - Lee Re Lee
- Department of Biomedical Science, Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, Republic of Korea
| | - Na Yeon Kim
- Department of Biomedical Science, Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, Republic of Korea
| | - Su Yeon Kwon
- Department of Biomedical Science, Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, Republic of Korea
| | - Su Min Kim
- Department of Biomedical Science, Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, Republic of Korea
| | - Dae Won Kim
- Department of Biochemistry and Molecular Biology, Research Institute of Oral Sciences, College of Dentistry, Gangneung-Wonju National University, Gangneung 25457, Republic of Korea
| | - Hyo Young Jung
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Oh-Shin Kwon
- School of Life Sciences, College of Natural Sciences, Kyungpook National University, Taegu 41566, Republic of Korea
| | - Chan Hee Lee
- Department of Biomedical Science, Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, Republic of Korea
| | - Jong Kook Park
- Department of Biomedical Science, Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, Republic of Korea
| | - Keun Wook Lee
- Department of Biomedical Science, Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, Republic of Korea
| | - Kyu Hyung Han
- Department of Biomedical Science, Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, Republic of Korea
| | - Jinseu Park
- Department of Biomedical Science, Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, Republic of Korea
| | - Won Sik Eum
- Department of Biomedical Science, Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, Republic of Korea
- Correspondence: (W.S.E.); (S.Y.C.); Tel.: +82-(33)-2483221 (W.S.E.); +82-(33)-2482112 (S.Y.C.); Fax: +82-(33)-2483202 (W.S.E. & S.Y.C.)
| | - Soo Young Choi
- Department of Biomedical Science, Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, Republic of Korea
- Correspondence: (W.S.E.); (S.Y.C.); Tel.: +82-(33)-2483221 (W.S.E.); +82-(33)-2482112 (S.Y.C.); Fax: +82-(33)-2483202 (W.S.E. & S.Y.C.)
| |
Collapse
|
19
|
Kim SM, Jung JH, Chung SA. Letter to the Editor: Comments on "Acute Partial Oculomotor Nerve Palsy and Optic Neuritis Preceding Juvenile Idiopathic Arthritis: A Case Report". Korean J Ophthalmol 2023; 37:93-94. [PMID: 36549331 PMCID: PMC9935060 DOI: 10.3341/kjo.2022.0130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 12/18/2022] [Indexed: 12/24/2022] Open
Affiliation(s)
- Su Min Kim
- Seoul National University College of Medicine, Seoul, Korea
| | - Jae Ho Jung
- Department of Ophthalmology, Seoul National University College of Medicine, Seoul, Korea
- E-mail (Jae Ho Jung):
| | - Seung Ah Chung
- Department of Ophthalmology, Ajou University School of Medicine, Suwon, Korea
| |
Collapse
|
20
|
Kim KR, Lee AS, Kim SM, Heo HR, Kim CS. Virus-like nanoparticles as a theranostic platform for cancer. Front Bioeng Biotechnol 2023; 10:1106767. [PMID: 36714624 PMCID: PMC9878189 DOI: 10.3389/fbioe.2022.1106767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 12/31/2022] [Indexed: 01/15/2023] Open
Abstract
Virus-like nanoparticles (VLPs) are natural polymer-based nanomaterials that mimic viral structures through the hierarchical assembly of viral coat proteins, while lacking viral genomes. VLPs have received enormous attention in a wide range of nanotechnology-based medical diagnostics and therapies, including cancer therapy, imaging, and theranostics. VLPs are biocompatible and biodegradable and have a uniform structure and controllable assembly. They can encapsulate a wide range of therapeutic and diagnostic agents, and can be genetically or chemically modified. These properties have led to sophisticated multifunctional theranostic platforms. This article reviews the current progress in developing and applying engineered VLPs for molecular imaging, drug delivery, and multifunctional theranostics in cancer research.
Collapse
Affiliation(s)
- Kyeong Rok Kim
- Graduate School of Biochemistry, Yeungnam University, Gyeongsan, South Korea
| | - Ae Sol Lee
- Graduate School of Biochemistry, Yeungnam University, Gyeongsan, South Korea
| | - Su Min Kim
- Graduate School of Biochemistry, Yeungnam University, Gyeongsan, South Korea
| | - Hye Ryoung Heo
- Senotherapy-Based Metabolic Disease Control Research Center, Yeungnam University, Gyeongsan, South Korea,*Correspondence: Chang Sup Kim, ; Hye Ryoung Heo,
| | - Chang Sup Kim
- Graduate School of Biochemistry, Yeungnam University, Gyeongsan, South Korea,School of Chemistry and Biochemistry, Yeungnam University, Gyeongsan, South Korea,*Correspondence: Chang Sup Kim, ; Hye Ryoung Heo,
| |
Collapse
|
21
|
Chu H, Kim SM, Zhang K, Wu Z, Lee H, Kim JH, Kim HL, Kim YR, Kim SH, Kim WJ, Lee YW, Lee KH, Liu KH, Park CO. Head and neck dermatitis is exacerbated by Malassezia furfur colonization, skin barrier disruption, and immune dysregulation. Front Immunol 2023; 14:1114321. [PMID: 36911720 PMCID: PMC9992991 DOI: 10.3389/fimmu.2023.1114321] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 02/07/2023] [Indexed: 02/25/2023] Open
Abstract
Introduction & objectives Head and neck dermatitis (HND) is a refractory phenotype of atopic dermatitis (AD) and can be a therapeutic challenge due to lack of responsiveness to conventional treatments. Previous studies have suggested that the microbiome and fungiome may play a role in inducing HND, but the underlying pathogenic mechanisms remain unknown. This study aimed to determine the link between HND and fungiome and to examine the contribution of Malassezia furfur. Materials and methods To identify the effect of the sensitization status of M. furfur on HND, 312 patients diagnosed with AD were enrolled. To elucidate the mechanism underlying the effects of M. furfur, human keratinocytes and dermal endothelial cells were cultured with M. furfur and treated with Th2 cytokines. The downstream effects of various cytokines, including inflammation and angiogenesis, were investigated by real-time quantitative PCR. To identify the association between changes in lipid composition and M. furfur sensitization status, D-squame tape stripping was performed. Lipid composition was evaluated by focusing on ceramide species using liquid chromatography coupled with tandem mass spectrometry. Results Increased sensitization to M. furfur was observed in patients with HND. Additionally, sensitization to M. furfur was associated with increased disease severity in these patients. IL-4 treated human keratinocytes cultured with M. furfur produced significantly more VEGF, VEGFR, IL-31, and IL-33. IL-4/M. furfur co-cultured dermal endothelial cells exhibited significantly elevated VEGFR, TGF-β, TNF-α, and IL-1β levels. Stratum corneum lipid analysis revealed decreased levels of esterified omega-hydroxyacyl-sphingosine, indicating skin barrier dysfunction in HND. Finally, M. furfur growth was inhibited by the addition of these ceramides to culture media, while the growth of other microbiota, including Cutibacterium acnes, were not inhibited. Conclusions Under decreased levels of ceramide in AD patients with HND, M. furfur would proliferate, which may enhance pro-inflammatory cytokine levels, angiogenesis, and tissue remodeling. Thus, it plays a central role in the pathogenesis of HND in AD.
Collapse
Affiliation(s)
- Howard Chu
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Su Min Kim
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - KeLun Zhang
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea.,Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Zhexue Wu
- Brain Korea 21 FOUR Community Based Intelligent Novel Drug Discovery Education Unit, College of Pharmacy and Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu, Republic of Korea
| | - Hemin Lee
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Ji Hye Kim
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Hye Li Kim
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea.,Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yu Ri Kim
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Seo Hyeong Kim
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Wan Jin Kim
- Department of Dermatology, Myongji Hospital, Goyang, Republic of Korea
| | - Yang Won Lee
- Department of Dermatology, Konkuk University School of Medicine, Seoul, Republic of Korea
| | - Kwang Hoon Lee
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Kwang-Hyeon Liu
- Brain Korea 21 FOUR Community Based Intelligent Novel Drug Discovery Education Unit, College of Pharmacy and Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu, Republic of Korea
| | - Chang Ook Park
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea.,Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| |
Collapse
|
22
|
Lee YH, Kim SM, Kim EK, Park SJ, Lee SC, Park SW, Jeong DS, Chang SA. Pattern of pericardial calcification determines the mid-term postoperative outcome after pericardiectomy in chronic constrictive pericarditis. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Background/Introduction
Although pericardiectomy is an effective treatment of constrictive pericarditis (CP), clinical outcome is not always successful. Pericardial calcification is a unique finding in CP. However, the amount and localization of calcification vary. Computer tomography (CT) can visualize the pericardial calcification with high sensitivity and provide the anatomical assessment.
Purpose
We investigated that how the pattern and amount of pericardial calcification affect the mid-term postoperative outcome after pericardiectomy in CP.
Methods
All of the patients who underwent total pericardiectomy in our hospital from 2010 to 2020 were derived from electrical medical records (n=105). Among them, preoperative CT scans (non-gated non-contrast) of 98 patients were available and, thus, 98 consecutive patients were finally analyzed. Medical records were reviewed in a retrospective manner. Cardiovascular event is defined as cardiovascular death or hospitalization associated with a heart failure symptom and all cause event is defined as all events that require admission. CT scan was analyzed by Aquarius Workstation, and the volume and localization pattern of pericalcification were derived. Pericardium calcium score was given as an Agatston score.
Results
Of 98 patients, 25 (25.5%) patients were hospitalized with heart failure symptom after pericardiectomy. Median follow up duration of patients is 172 weeks. A group with cardiovascular event had higher NYHA grade (P<0.001), lower calcium volume (P=0.004), and lower calcium score (P=0.01). Multivariate cox proportional analysis showed that high ln(calcium score) before pericardiectomy was dependent predictor of cardiovascular event (hazard ratio, 0.90; P=0.04) and all cause event (hazard ratio, 0.91, P=0.04) after pericardiectomy. When we set the cut off value at 7.22, based on ROC curve, there was a significant difference in cardiovascular event between the groups divided by this cutoff value in Kaplan-Meier curve (P=0.002) and multivariate cox proportional analysis (P=0.04). In the subgroup analysis, myocardium invasion and circumferential calcification were more common in the high calcium score group. Idiopathic & tuberculosis pericarditis were more associated with high calcium score group and post-operative pericarditis, other reasons (infection, radiation, etc) were more associated with low calcium group.
Conclusion
Low burden of pericardial calcification was associated high rate of mid-term clinical event after pericardiectomy CP. Preoperative evaluation of pericardial calcification pattern can be used as predictor of postoperative outcomes.
Funding Acknowledgement
Type of funding sources: None.
Collapse
Affiliation(s)
- Y H Lee
- Sungkyunkwan University School of Medicine , Seoul , Korea (Republic of)
| | - S M Kim
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Department of Radiology , Seoul , Korea (Republic of)
| | - E K Kim
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - S J Park
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - S C Lee
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - S W Park
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - D S Jeong
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Department of Thoracic and Cardiovascular Surgery , Seoul , Korea (Republic of)
| | - S A Chang
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
| |
Collapse
|
23
|
Bak M, Choi KH, Kim JH, Park TK, Kim EK, Kim SM, Choi SH, Park SJ. Risk factors and clinical effects of late leaflet thrombosis after transcatheter aortic valve replacement. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
As the indications for trans-catheter aortic valve replacement (TAVR) expand, it is expected that the number of TAVR patients would increase and the follow-up duration would be longer. It is known that the incidence of leaflet thrombosis is higher in TAVR than in surgical aortic valve replacement (SAVR), but not much is known about the risk factors of late leaflet thrombosis in TAVR.
Aim
Therefore, in this study, the incidence and risk factors of late leaflet thrombosis at late term after TAVR and the effect on clinical course of late leaflet thrombosis would be investigated.
Method
There were 176 patients undergone TAVR from January 2015 to October 2020 in one tertiary hospital of south korea. 94 patients had follow-up cardiovascular computed tomography (CT) between 3 months and 2 years after TAVR. Among 94 patients, late leaflet thrombosis was discovered at 20 patients, and risk factors were analyzed by comparing clinical factors, echocardiographic and cardiovascular CT information, and angiographic data between the group with and without late leaflet thrombosis. And the difference in aortic valve hemodynamics between the group with and without leaflet thrombosis was examined and clinical outcomes were compared. Clinical outcome was defined as the composite of all-cause death, stroke, heart failure (HF) admission, redo-aortic valve (AV) replacement and major bleeding after detection of late leaflet thrombosis.
Results
Indexed mean sinus of Valsalva diameter, AV calcium score and post procedure estimated orifice area (EOA) had predictability of late leaflet thrombosis with AUC value of 0.670 (95% CI [0.546–0.795], p value = 0.020), AUC value of 0.698 (95% CI [0.544–0.851], p value = 0.012) and AUC value of 0.665 (95 percent CI [0.548–0.782], p value = 0.031), respectively (Figure 1).
In echocardiography performed at the time of follow-up CT, AV max velocity and AV mean pressure gradient were higher in thrombosis group and EOA and Doppler velocity index were lower in thrombosis group than in no thrombosis group within normal range (Figure 2). Clinical outcome was not significant different between the two groups (log rank p value = 0.560).
Conclusion
Larger indexed sinus of Valsalva diameter, higher AV calcium score and smaller post procedure AV EOA were risk factors for late leaflet thrombosis after TAVR. Subclinical late leaflet thrombosis have a benign course when properly managed.
Funding Acknowledgement
Type of funding sources: None.
Collapse
Affiliation(s)
- M Bak
- Samsung Medical Center, Division of Cardiology, Cardiovascular Imaging Center, Heart Vascular Stroke Institute , Seoul , Korea (Republic of)
| | - K H Choi
- Samsung Medical Center , Seoul , Korea (Republic of)
| | - J H Kim
- Samsung Medical Center, Division of Cardiology, Cardiovascular Imaging Center, Heart Vascular Stroke Institute , Seoul , Korea (Republic of)
| | - T K Park
- Samsung Medical Center , Seoul , Korea (Republic of)
| | - E K Kim
- Samsung Medical Center, Division of Cardiology, Cardiovascular Imaging Center, Heart Vascular Stroke Institute , Seoul , Korea (Republic of)
| | - S M Kim
- Samsung Medical Center, Department of Radiology, Cardiovascular Imaging Center, Heart Vascular Stroke Institute , Seoul , Korea (Republic of)
| | - S H Choi
- Samsung Medical Center , Seoul , Korea (Republic of)
| | - S J Park
- Samsung Medical Center, Division of Cardiology, Cardiovascular Imaging Center, Heart Vascular Stroke Institute , Seoul , Korea (Republic of)
| |
Collapse
|
24
|
Roh WS, Lee JH, Kim SM, Byeon HJ, Park CO. Pilocarpine as a treatment option for dupilumab-related eye manifestations. JAAD Int 2022; 8:126-127. [PMID: 35875394 PMCID: PMC9305317 DOI: 10.1016/j.jdin.2022.06.007] [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] [Indexed: 11/18/2022] Open
Affiliation(s)
- Won Seok Roh
- Department of Dermatology and Cutaneous, Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Joo Hee Lee
- Department of Dermatology and Cutaneous, Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Su Min Kim
- Department of Dermatology and Cutaneous, Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Hyeong Ju Byeon
- Department of Ophthalmology, Severance Hospital, Institute of Vision Research, Yonsei University College of Medicine, Seoul, Korea
| | - Chang Ook Park
- Department of Dermatology and Cutaneous, Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
- Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
- Correspondence to: Chang Ook Park, MD, PhD, Department of Dermatology and Cutaneous, Biology Research Institute, Institute of Allergy, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, Korea
| |
Collapse
|
25
|
Kim G, Lee DS, Eccles H, Kim SM, Cho HU, Park JM. Selective strontium adsorption using synthesized sodium titanate in aqueous solution. RSC Adv 2022; 12:18936-18944. [PMID: 35873321 PMCID: PMC9240817 DOI: 10.1039/d2ra02494b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 06/14/2022] [Indexed: 11/25/2022] Open
Abstract
Amorphous sodium titanates were synthesized using a mid-temperature sol–gel method for evaluation as selective adsorbents of strontium in the presence of cesium or metal cations (Al3+, Mg2+, Ca2+, and Mn2+) from aqueous solution. Synthesized sodium titanate showed high adsorption capacity and selectivity for strontium. The maximum adsorption capacity of strontium by sodium titanate was 193.93 mg g−1 in aqueous solution containing an initial concentration of 5 mM (438.60 mg L−1) strontium and 5 mM (666.67 mg L−1) cesium, and this sodium titanate removed 99.9% of the strontium and 40.67% of cesium from an aqueous solution that had an initial concentration of 1.14 mM (100 mg L−1) strontium and 0.75 mM (100 mg L−1) cesium. Strontium adsorption by synthesized sodium titanate followed pseudo-second-order kinetics and a generalized Langmuir isotherm model, and reached an adsorption equilibrium within 1 h with high adsorption capacity at equilibrium. Adsorbed strontium onto synthesized sodium titanate showed the behavior of forming a strontium titanate structure with a titanate frame via surface precipitation. Amorphous sodium titanates were synthesized using a mid-temperature sol–gel method for evaluation as selective adsorbents of strontium in the presence of cesium or metal cations (Al3+, Mg2+, Ca2+, and Mn2+) from aqueous solution.![]()
Collapse
Affiliation(s)
- Gyuhyeon Kim
- Division of Advanced Nuclear Engineering, Pohang University of Science and Technology Pohang 37673 Republic of Korea
| | - Dae Sung Lee
- Department of Environmental Engineering, Kyungpook National University 80 Daehak-ro, Buk-gu Daegu 41566 Republic of Korea
| | - Harry Eccles
- School of Computing, Engineering and Physical Sciences, University of Central Lancashire Preston PR1 2HE UK
| | - Su Min Kim
- Department of Marine Environmental Engineering, Gyeongsang National University Tongyeong 53064 Republic of Korea
| | - Hyun Uk Cho
- Department of Marine Environmental Engineering, Gyeongsang National University Tongyeong 53064 Republic of Korea
| | - Jong Moon Park
- Division of Advanced Nuclear Engineering, Pohang University of Science and Technology Pohang 37673 Republic of Korea.,School of Environmental Science and Engineering, Pohang University of Science and Technology Pohang 37673 Republic of Korea.,Department of Chemical Engineering, Pohang University of Science and Technology Pohang 37673 Republic of Korea.,School of Integrated Technology, Yonsei University (POSTECH-Yonsei Open Campus) Pohang 37673 Republic of Korea
| |
Collapse
|
26
|
Kim SM, Kim T, Lee JH, Cho SY, Cha WC. Effect of the Automatic Needle Destroyer on Healthcare Providers’ Work in an Emergency Department: A Mixed-Methods Study. Healthc Inform Res 2022; 28:123-131. [PMID: 35576980 PMCID: PMC9117800 DOI: 10.4258/hir.2022.28.2.123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 01/28/2022] [Indexed: 11/23/2022] Open
Abstract
Objectives: This study introduced a novel Automatic Needle Destroyer (AND) to an emergency department (ED) and assessed its effect on healthcare providers’ work.Methods: Between August and September 2019, in the ED of a tertiary hospital in Seoul, we conducted a mixed-methods study to evaluate the efficiency, safety, and usability of the AND using video analysis, surveys, and in-depth interviews, wherein participants described the advantages and disadvantages of the AND.Results: Compared to the existing method, introducing the AND significantly reduced the operating time from 2.32 ± 1.14 seconds to 1.77 ± 3.71 seconds (<i>p</i> < 0.001). The normal operation rate was 90.6%. The rate of needle-stick injuries (NSIs) and the mean system usability scale (SUS) showed no significant differences. The in-depth interviews indicated that the disadvantages of the AND were mostly operational. The advantages were related to profit, reduced direct contact with hazardous waste, and behavioral changes, such as not having to recap syringes.Conclusions: We introduced the AND to an ED environment, where NSIs occur frequently and many syringes are used, to evaluate its effect on providers’ work. The AND reduced the time for needle disposal, but the normal operation rate was low. No significant differences were found in the SUS score or the rate of NSIs. Although there are some restrictions on introducing the AND immediately, this study’s results showed its potential usefulness. Efforts to improve the operation of the device and a longer study period are needed to fully achieve safety and efficiency.
Collapse
Affiliation(s)
- Su Min Kim
- Department of Digital Health, Samsung Advanced Institute for Health Science & Technology, Sungkyunkwan University, Seoul,
Korea
| | - Taerim Kim
- Department of Emergency Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul,
Korea
| | - Jee Hyang Lee
- Department of Emergency Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul,
Korea
| | - Sun Young Cho
- Division of Infectious Diseases, Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul,
Korea
| | - Won Chul Cha
- Department of Digital Health, Samsung Advanced Institute for Health Science & Technology, Sungkyunkwan University, Seoul,
Korea
- Department of Emergency Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul,
Korea
- Health Information and Strategy Center, Samsung Medical Center, Seoul,
Korea
| |
Collapse
|
27
|
Yoon BH, Kang HW, Kim SM, Koh YD. Prevalence and Risk Factors of T-Score Spine-Hip Discordance in Patients with Osteoporotic Vertebral Compression Fracture. J Bone Metab 2022; 29:43-49. [PMID: 35325982 PMCID: PMC8948492 DOI: 10.11005/jbm.2022.29.1.43] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 02/14/2022] [Indexed: 11/11/2022] Open
Abstract
Background: T-score discordance between the spine and hip is commonly observed when dual energy X-ray absorptiometry (DXA) is used to diagnose osteoporosis. However, information is scarce regarding the prevalence and risk factors for this problem in Korea. This study evaluated the prevalence of major/minor discordance and associated risk factors in elderly Korean patients with osteoporotic vertebral compression fractures (OVCFs).Methods: This study included 200 patients (37 men, 163 women) treated for thoracic or lumbar compression fractures between January 2015 and August 2021. DXA was performed to examine T‐scores and determine the prevalence of discordance, defined as a difference between the T-score categories of the femur and spine in the same individual. The t-tests, χ2 tests, and regression analyses were used to assess the associated risk factors of T-score discordance among the subjects.Results: T-score concordance, minor discordance, and major discordance were observed in 137 (68.5%), 59 (29.5%), and 4 (2%) patients with OVCFs, respectively. The spinal T-score was lower than the femoral T-score in all major discordance and 81.3% (48/59) of minor discordant cases. Overall, the only factor related to T-score discordance was the age at fracture (odds ratio, -0.01; P=0.014).Conclusions: The results of this study showed that a significant number of subjects (31.5%) showed spine-hip discordance, even with a mean age in their 80s. More attention should be paid to the appropriate evaluation and management of elderly patients with OVCFs. Moreover, a longitudinal study is necessary to verify the clinical importance of T-score discordance in this population.
Collapse
Affiliation(s)
- Byung-Ho Yoon
- Department of Orthopedic Surgery, Ewha Womans University, College of Medicine, Mokdong Hospital, Seoul, Korea
| | - Ho Won Kang
- Department of Orthopedic Surgery, Ewha Womans University, College of Medicine, Mokdong Hospital, Seoul, Korea
| | - Su Min Kim
- Department of Orthopedic Surgery, Ewha Womans University, College of Medicine, Mokdong Hospital, Seoul, Korea
| | - Young Do Koh
- Department of Orthopedic Surgery, Ewha Womans University, College of Medicine, Mokdong Hospital, Seoul, Korea
| |
Collapse
|
28
|
Kim SM, Park CO. Does Monthly Dupilumab Therapy Maintain its Clinical Efficacy in Moderate-to-Severe Atopic Dermatitis? Allergy Asthma Immunol Res 2021; 13:681-683. [PMID: 34486254 PMCID: PMC8419646 DOI: 10.4168/aair.2021.13.5.681] [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] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Accepted: 08/01/2021] [Indexed: 11/20/2022]
Affiliation(s)
- Su Min Kim
- Department of Dermatology and Cutaneous Biology Research Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Chang Ook Park
- Department of Dermatology and Cutaneous Biology Research Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
- Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea.
| |
Collapse
|
29
|
Kim SM, Kim MJ, Jo SJ. The relationships between perceived team psychological safety, transactive memory system, team learning behavior and team performance among individual team members. LODJ 2021. [DOI: 10.1108/lodj-09-2020-0402] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
PurposeThis study aimed to investigate the relationships between individual team member's perception of team psychological safety (TPS), individual team member's perception of transactive memory system (TMS), individual team member's perception of team learning behavior (TLB) and individual team member's perception of team performance (TP).Design/methodology/approachThis cross-sectional study used a paper-based questionnaire that was distributed to 500 employees in travel-related industries and responses were received from 467 employees. Finally, 394 surveys were used after excluding insincere responses. Using SPSS & AMOS version 25.0, factor analysis, correlation, path analysis and mediation analysis were performed.FindingsThe findings reveal that there is a significant association between TPS, TMS, TLB and TP, except for the specialization subdimension of TMS and reflective communication and knowledge codification subdimensions of TLB. There was no mediation role of TLB; however, credibility and task coordination subdimensions of TMS showed partial mediating effects between TPS and TP.Originality/valueThis study offers suggestions for management, emphasizing the importance of TPS. Recent and rapid organizational changes have dramatically increased employees' job insecurity, which can affect their psychological safety. Therefore, organizations should actively support employees to feel psychologically stable to improve performance by utilizing TMS and TLB among individual team members.
Collapse
|
30
|
Kim SM, Kim T, Cha WC, Lee JH, Kwon IH, Choi Y, Kim JS. User Experience of Mobile Personal Health Records for the Emergency Department: Mixed Methods Study. JMIR Mhealth Uhealth 2020; 8:e24326. [PMID: 33320102 PMCID: PMC7772069 DOI: 10.2196/24326] [Citation(s) in RCA: 3] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 10/22/2020] [Accepted: 11/03/2020] [Indexed: 11/25/2022] Open
Abstract
Background Personal health records (PHRs) can be useful in the emergency department, as they provide patient information in an accurate and timely manner and enable it to be used actively. This has an effect on patients’ health outcomes and patient experience. Despite the importance of PHRs in emergencies, there are only a few studies related to PHRs in emergencies that evaluate patient experience. Objective This study aims to introduce the novel mobile PHR (mPHR) platform to emergency environments and assess user experience. Methods The study was conducted from October 2019 to November 2019. In total, 1000 patients or carers in the emergency departments of 3 hospitals were provided an application-based service called FirstER, which was developed to collect and utilize medical information for patients in the emergency department. This study was performed as a mixed methods study. After using FirstER, we investigated its usability and conducted a survey on the experience of obtaining medical information with a legacy system and with FirstER. Additionally, we interviewed 24 patients to gain insight into their experiences regarding medical information using FirstER. For the quantitative analysis, the survey results were analyzed using descriptive statistics (mean and standard deviation). For the qualitative analysis, we determined the keywords and their frequencies from each survey question and interview question. Results In total, 1000 participants, consisting of both patients and carers, were recruited in this study. Their mean age was 41.4 (SD 13.3) years. We ascertained participants’ satisfaction with FirstER and their mPHR needs through a survey and an in-depth interview. With the current system, participants were not well aware of their health conditions and medical information, and they were passive in the use of their medical information and treatment. However, they wanted their medical information for several reasons, such as information sharing and managing their health conditions. FirstER provided participants with their needed information and an easy way to access it. The mean System Usability Scale (SUS) value was 67.1 (SD 13.8), which was considered very near to acceptable. Conclusions This study is the first to implement mPHRs in the emergency department of large tertiary hospitals in the Republic of Korea. FirstER was found to enhance user experience in emergencies, as it provided necessary medical information and proper user experience. Moreover, the average SUS was 67.1, which means that participants found FirstER to be very near to acceptable. This is very encouraging in that FirstER was developed within a very short time, and it was a pilot study. Trial Registration Clinicaltrials.gov NCT04180618; https://clinicaltrials.gov/ct2/show/NCT04180618
Collapse
Affiliation(s)
- Su Min Kim
- Department of Digital Health, Samsung Advanced Institute for Health Science & Technology, Sungkyunkwan University, Seoul, Republic of Korea
| | - Taerim Kim
- Department of Emergency Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Won Chul Cha
- Department of Digital Health, Samsung Advanced Institute for Health Science & Technology, Sungkyunkwan University, Seoul, Republic of Korea.,Department of Emergency Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.,Health Information and Strategy Center, Samsung Medical Center, Seoul, Republic of Korea
| | - Jae-Ho Lee
- Department of Emergency Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.,Department of Information Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - In Ho Kwon
- Department of Emergency Medicine, Dong-a University Hospital, Busan, Republic of Korea.,Department of Emergency Medicine, Dong-a University College of Medicine, Busan, Republic of Korea
| | - Yuri Choi
- Department of Emergency Medicine, Dong-a University Hospital, Busan, Republic of Korea.,Department of Emergency Medicine, Dong-a University College of Medicine, Busan, Republic of Korea
| | - June-Sung Kim
- Department of Emergency Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| |
Collapse
|
31
|
Yun JM, Choi S, Kim K, Kim SM, Son JS, Lee G, Jeong SM, Park SY, Kim YY, Park SM. All-cause mortality, cardiovascular mortality, and incidence of cardiovascular disease according to a screening program of cardiovascular risk in South Korea among young adults: a nationwide cohort study. Public Health 2020; 190:23-29. [PMID: 33338899 DOI: 10.1016/j.puhe.2020.10.023] [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: 02/19/2020] [Revised: 08/03/2020] [Accepted: 10/29/2020] [Indexed: 11/17/2022]
Abstract
OBJECTIVES We aimed to determine whether there are any differences in all-cause and cause-specific mortality with cardiovascular disease (CVD) risk between health screening attenders and non-attenders among young adults. STUDY DESIGN We performed a retrospective cohort study using claim data from the Korean National Health Insurance Service database. METHODS Individuals aged 20-39 years who had received health screening at least once between 2002 and 2005 were classified as attenders, and the others were classified as non-attenders. After propensity score matching according to attendance of health screening, 2,060,409 attenders and 2,060,409 non-attenders were included. We estimated adjusted hazard ratios (HRs) and 95% confidence interval (CI) for all-cause mortality, cause-specific mortality, and hospitalization of CVD from 2006 to 2015. RESULTS Survival from all-cause mortality was greater among attenders than among non-attenders (log rank P < 0.001). Similarly, death from CVD (log rank P = 0.007) and CVD events (log rank P < 0.001) were less likely among attenders. The risk for all-cause mortality in attenders was significantly lower than that in non-attenders (HR = 0.83, 95% CI = 0.81 to 0.84). The risk for CVD mortality (HR = 0.80, 95% CI = 0.73 to 0.87) and hospitalization of CVD (HR = 0.92, 95% CI = 0.91 to 0.94) were lower in attenders. In stratified analyses, the risk for all-cause and cause-specific mortalities was lower among attenders regardless of insurance type. CONCLUSIONS Among young adults, the risk for all-cause mortality, CVD mortality, and hospitalization of CVD were lower for those who underwent health screenings. Future studies that evaluate the cost-effectiveness of health screening with additional consideration of psychosocial aspects are needed.
Collapse
Affiliation(s)
- J M Yun
- Department of Family Medicine, Seoul National University Hospital, Seoul, South Korea
| | - S Choi
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, South Korea
| | - K Kim
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, South Korea
| | - S M Kim
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, South Korea
| | - J S Son
- Department of Family Medicine, Seoul National University Hospital, Seoul, South Korea
| | - G Lee
- Department of Family Medicine, Seoul National University Hospital, Seoul, South Korea
| | - S-M Jeong
- Department of Family Medicine, Seoul National University Hospital, Seoul, South Korea
| | - S Y Park
- Big Data Steering Department, National Health Insurance Service, Wonju, South Korea
| | - Y-Y Kim
- Big Data Steering Department, National Health Insurance Service, Wonju, South Korea
| | - S M Park
- Department of Family Medicine, Seoul National University Hospital, Seoul, South Korea; Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, South Korea.
| |
Collapse
|
32
|
Kim SM, Hwang S, Almurayshid A, Park MY, Oh SH. Non-Ablative 1927 nm Fractional Thulium Fiber Laser: New, Promising Treatment Modality for Riehl's Melanosis. Lasers Surg Med 2020; 53:640-646. [PMID: 33259661 DOI: 10.1002/lsm.23341] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 09/27/2020] [Accepted: 10/12/2020] [Indexed: 12/29/2022]
Abstract
BACKGROUND AND OBJECTIVES The treatment of Riehl's melanosis, also known as pigmented contact dermatitis, is highly challenging. Intense pulsed light (IPL) and 1064 nm Q-switched Nd:Yag (QS-Nd:YAG) laser are reported to have some efficacy. However, no single effective treatment has yet been identified. In this study, we demonstrated the efficacy and safety of the non-ablative 1927 nm fractional thulium fiber laser (TFL, LASEMD™; Lutronic Corp., Goyang, Korea) for patients with Riehl's melanosis. STUDY DESIGN/MATERIALS AND METHODS A retrospective chart and photographic review of nine patients with Riehl's melanosis, who had received at least three sessions of TFL treatment, was performed. Before the start of TFL treatment, combination treatment with a topical cream containing hydroquinone, low-fluence QS-Nd:YAG laser, pulsed dye laser, and IPL was used with variable and discouraging effects. Seven patients were treated on the face and two patients on the neck with three to seven sessions at 1-month intervals. Clinical improvement was assessed using clinical photos taken before and after every treatment session according to dermal pigmentation area and severity index (DPASI) and a quartile grading scale by two blinded dermatologists. RESULTS Patients underwent three to seven sessions of TFL treatment depending on severity of pigmentation. Of nine patients, six demonstrated a clinical improvement of 51%-75%, one demonstrated an improvement of 76%-100%, and two showed an improvement of 26%-50% after treatment. The DPASI was significantly decreased from 9.55 to 5.25 on average. Melanin index was decreased after treatment in two patients whose melanin index were measured at initial visits. Treatment-related adverse events, such as scarring or postinflammatory hyperpigmentation (PIH), were not observed in all patients except for transient erythema and swelling. CONCLUSIONS This report suggests that TFL could be an alternative and/or additive treatment option for hyperpigmentation in intractable Riehl's melanosis and might be a promising treatment for PIH caused by any reason including Riehl's melanosis. Lasers Surg. Med. © 2020 Wiley Periodicals LLC.
Collapse
Affiliation(s)
- Su Min Kim
- Department of Dermatology and Cutaneous Biology Research Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Shinwon Hwang
- Department of Dermatology and Cutaneous Biology Research Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Abdurrahman Almurayshid
- Department of Medicine, College of Medicine, Prince Sattam Bin Abdulaziz University, Saudi Arabia
| | - Min-Young Park
- Department of Dermatology and Cutaneous Biology Research Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Sang Ho Oh
- Department of Dermatology and Cutaneous Biology Research Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| |
Collapse
|
33
|
Kim SM, Park CO. Alternative Immunomodulatory and Disease-Modifying Treatment for Atopic Dermatitis: Autologous Total Immunoglobulin G. Allergy Asthma Immunol Res 2020; 12:903-905. [PMID: 32935484 PMCID: PMC7492510 DOI: 10.4168/aair.2020.12.6.903] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 07/29/2020] [Indexed: 11/20/2022]
Affiliation(s)
- Su Min Kim
- Department of Dermatology and Cutaneous Biology Research Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Chang Ook Park
- Department of Dermatology and Cutaneous Biology Research Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
| |
Collapse
|
34
|
Lee SR, Kim SM, Oh MY, Lee JM. Efficacy of Olanzapine for High and Moderate Emetogenic Chemotherapy in Children. Children (Basel) 2020; 7:children7090140. [PMID: 32948015 PMCID: PMC7552625 DOI: 10.3390/children7090140] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 09/11/2020] [Accepted: 09/15/2020] [Indexed: 11/16/2022]
Abstract
This study was conducted to investigate the safety and efficacy of olanzapine for high and moderate emetogenic chemotherapy in children and young adults. We retrospectively reviewed the records of pediatric patients (n = 13) with cancer who had been administered olanzapine as an anti-emetic drug (AED) during a high and moderate emetogenic chemotherapy block from January 2018 to March 2020. Patients were administered other prophylactic AEDs according to practice guidelines. The mean age of the patients was 14.1 ± 5.5 years. The total number of chemotherapy cycles was 41. Twenty-one (51.2%) chemotherapy blocks were high emetogenic chemotherapy and 20 (48.8%) blocks were moderate emetogenic chemotherapy. Olanzapine was used for prophylaxis in 20 (48.8%) blocks of chemotherapy and rescue in 21 (51.2%). Of the 41 cycles, a complete response to olanzapine was achieved in 31 (75.6%), partial response in 6 (14.6%), and no response in 4 (9.8%). The mean dose was 0.07 ± 0.04 mg/kg/dose and 2.50 ± 1.37 mg/m2/dose. Adverse effects included somnolence, hyperglycemia, fatigue, and disturbed sleep. Our findings indicate that olanzapine was effective and safe for treating chemotherapy-induced nausea and vomiting in children. A prospective controlled study is needed to confirm these findings.
Collapse
Affiliation(s)
- So Rae Lee
- Department of Medicine, College of Medicine, Yeungnam University, Daegu 42415, Korea; (S.R.L.); (S.M.K.); (M.Y.O.)
| | - Su Min Kim
- Department of Medicine, College of Medicine, Yeungnam University, Daegu 42415, Korea; (S.R.L.); (S.M.K.); (M.Y.O.)
| | - Min Young Oh
- Department of Medicine, College of Medicine, Yeungnam University, Daegu 42415, Korea; (S.R.L.); (S.M.K.); (M.Y.O.)
| | - Jae Min Lee
- Department of Pediatrics, College of Medicine, Yeungnam University, Daegu 42415, Korea
- Correspondence: ; Tel.: +82-53-620-3536
| |
Collapse
|
35
|
Chesley M, Kennard R, Roozbahani S, Kim SM, Kukk K, Mason M. One-step hydrothermal synthesis with in situ milling of biologically relevant hydroxyapatite. Materials Science and Engineering: C 2020; 113:110962. [DOI: 10.1016/j.msec.2020.110962] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 03/18/2020] [Accepted: 04/10/2020] [Indexed: 02/03/2023]
|
36
|
Eo SH, Yu SM, Han Y, Han J, Min Kim S, Kim DB, Kyun Jeon B, Kil Lee W, Ja Kim S. Effects of Thymoquinone and Iksan 526 callus Extract on B16F10 and A375 Cell Lines. INT J PHARMACOL 2020. [DOI: 10.3923/ijp.2020.479.491] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
37
|
Choi SJ, Kwak DW, Kil K, Kim SC, Kwon JY, Kim YH, Na S, Bae JG, Cha HH, Shim JY, Oh KY, Lee KA, Kim SM, Cho IA, Lee SM, Cho GJ, Jo YS, Choi GY, Choi SK, Hur SE, Hwang HS, Kim YJ. Vaginal compared with intramuscular progestogen for preventing preterm birth in high-risk pregnant women (VICTORIA study): a multicentre, open-label randomised trial and meta-analysis. BJOG 2020; 127:1646-1654. [PMID: 32536019 DOI: 10.1111/1471-0528.16365] [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] [Accepted: 06/02/2020] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To compare the efficacy of two types of progestogen therapy for preventing preterm birth (PTB) and to review the relevant literature. DESIGN A multicentre, randomised, open-label, equivalence trial and a meta-analysis. SETTING Tertiary referral hospitals in South Korea. POPULATION Pregnant women with a history of spontaneous PTB or short cervical length (<25 mm). METHODS Eligible women were screened and randomised at 16-22 weeks of gestation to receive either 200 mg of vaginal micronised progesterone daily (vaginal group) or an intramuscular injection of 250 mg 17α-hydroxyprogesterone caproate weekly (IM group). Stratified randomisation was carried out according to participating centres and indications for progestogen therapy. This trial was registered at ClinicalTrials.gov (NCT02304237). MAIN OUTCOME MEASURE Preterm birth (PTB) before 37 weeks of gestation. RESULTS A total of 266 women were randomly assigned and a total of 247 women (119 and 128 women in the vaginal and IM groups, respectively) were available for the intention-to-treat analysis. Risks of PTB before 37 weeks of gestation did not significantly differ between the two groups (22.7 versus 25.8%, P = 0.571). The difference in PTB risk between the two groups was 3.1% (95% CI -7.6 to 13.8%), which was within the equivalence margin of 15%. The meta-analysis results showed no significant differences in the risk of PTB between the vaginal and IM progestogen treatments. CONCLUSION Compared with vaginal progesterone, treatment with intramuscular progestin might increase the risk of PTB before 37 weeks of gestation by as much as 13.8%, or reduce the risk by as much as 7.6%, in women with a history of spontaneous PTB or with short cervical length. TWEETABLE ABSTRACT Vaginal and intramuscular progestogen showed equivalent efficacy for preventing preterm birth before 37 weeks of gestation.
Collapse
Affiliation(s)
- S-J Choi
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - D W Kwak
- Ajou University School of Medicine, Suwon, Korea
| | - K Kil
- Yeouido St Mary's Hospital, The Catholic University of Korea, Seoul, Korea
| | - S-C Kim
- Pusan National University College of Medicine, Pusan, Korea
| | - J-Y Kwon
- Institute of Women's Life Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - Y H Kim
- Chonnam National University Medical School, Gwangju, Korea
| | - S Na
- Kangwon National University Hospital, School of Medicine Kangwon National University, Chuncheon, Korea
| | - J-G Bae
- Keimyung University School of Medicine, Daegu, Korea
| | - H-H Cha
- Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
| | - J-Y Shim
- Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - K Y Oh
- School of Medicine, Eulji University, Daejeon, Korea
| | - K A Lee
- Kyung Hee University School of Medicine, Seoul, Korea
| | - S M Kim
- Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - I A Cho
- Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, Korea
| | - S M Lee
- Seoul National University College of Medicine, Seoul, Korea
| | - G J Cho
- Korea University College of Medicine, Seoul, Korea
| | - Y S Jo
- St Vincent's Hospital, College of Medicine, The Catholic University of Korea, Suwon, Korea
| | - G Y Choi
- Soonchunhyang University Seoul Hospital, College of Medicine, Soonchunhyang University, Seoul, Korea
| | - S K Choi
- College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - S E Hur
- Konyang University Hospital, Daejeon, Korea
| | - H S Hwang
- Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea
| | - Y J Kim
- College of Medicine, Ewha Womans University, Seoul, Korea
| | | |
Collapse
|
38
|
Chae YS, Lee JY, Lee JW, Park JY, Kim SM, Lee JH. Survival of oral mucosal melanoma according to treatment, tumour resection margin, and metastases. Br J Oral Maxillofac Surg 2020; 58:1097-1102. [PMID: 32586691 DOI: 10.1016/j.bjoms.2020.05.028] [Citation(s) in RCA: 3] [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] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 05/20/2020] [Indexed: 12/13/2022]
Abstract
Because of the poor prognosis and of oral mucosal melanoma, and patients' short survival, large, randomised, clinical studies are difficult. We have investigated its demographic characteristics and analysed the effect of treatment, resection margins, and metastases on survival. We recorded age, sex, site of primary tumour, and types of treatment, survival, and metastases in 74 patients treated at the Department of Oral and Maxillofacial Surgery, Seoul National University Dental Hospital. Survival was analysed based on bony invasion, depth of invasion, and resection margins, and we found that it varied depending on the primary site (p=0.002), and declined with liver (p=0.001) or brain (p=0.033) metastases. The two-year survival according to the primary site was as follows: palate 85% (n=32), anterior maxillary gingiva 53% (n=13), mandible 58% (n=13), and posterior maxillary gingival 74% (n=10) and buccal mucosa 50% (n=4). The two-year survival was 34% (n=8) in patients with liver metastases and 23% (n=7) in patients with brain metastases. In cases of bony invasion (p=0.005), depth of invasion (p=0.042), unclear resection margin (p=0.023), or higher T stages (p=0.009), the survival declined considerably. Neck dissection did not affect survival (p=0.343). Survival of the patients given chemotherapy was significantly lower (p=0.013) and the two-year survival was 54.0%. The patients given radiotherapy showed no significant difference in survival compared with those not given radiotherapy (p=0.107). In conclusion, primary site, bony invasion, resection margins, depth of invasion and systemic metastases were critical to predict prognosis and selection of treatment of oral mucosal melanoma.
Collapse
Affiliation(s)
- Y-S Chae
- Department of Oral and Maxillofacial Surgery, Seoul National University Dental Hospital, Seoul, Republic of Korea; Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - J-Y Lee
- Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - J-W Lee
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Kyung Hee University, Seoul, Republic of Korea
| | - J-Y Park
- Department of Oral and Maxillofacial Surgery, Seoul National University Dental Hospital, Seoul, Republic of Korea
| | - S M Kim
- Department of Oral and Maxillofacial Surgery, Seoul National University Dental Hospital, Seoul, Republic of Korea; Dental Research Institute, Seoul National University, Seoul, Republic of Korea; Clinical Trial Center and Oral Cancer Center, Seoul National University Dental Hospital, Seoul, Republic of Korea
| | - J-H Lee
- Department of Oral and Maxillofacial Surgery, Seoul National University Dental Hospital, Seoul, Republic of Korea; Dental Research Institute, Seoul National University, Seoul, Republic of Korea; Clinical Trial Center and Oral Cancer Center, Seoul National University Dental Hospital, Seoul, Republic of Korea.
| |
Collapse
|
39
|
Kim SM, Yoo S, Cha WC, Kim TR. Providing Personal Health Records Based on a Mobile Application for Emergencies. Stud Health Technol Inform 2020; 270:1373-1374. [PMID: 32570665 DOI: 10.3233/shti200448] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
We developed the service showing patient health record altogether which is managed by each hospital separately and recording the patient health information based on mobile application. We evaluated the effectiveness and satisfaction of the service. This study is aimed to reduce instances where patient's medical records are unknown to the medical staff in emergencies and allow patients to use and utilize their health information.
Collapse
Affiliation(s)
- Su Min Kim
- Samsung Advanced Institute for Health Science & Technology (SAIHST), Sungkyunkwan University, Seoul
| | - Suyoung Yoo
- Samsung Advanced Institute for Health Science & Technology (SAIHST), Sungkyunkwan University, Seoul
| | - Won Chul Cha
- Samsung Advanced Institute for Health Science & Technology (SAIHST), Sungkyunkwan University, Seoul.,Samsung Medical Center, Seoul
| | - Tae Rim Kim
- Samsung Advanced Institute for Health Science & Technology (SAIHST), Sungkyunkwan University, Seoul.,Samsung Medical Center, Seoul
| |
Collapse
|
40
|
Chu H, Park KH, Kim SM, Lee JH, Park JW, Lee KH, Park CO. Allergen-specific immunotherapy for patients with atopic dermatitis sensitized to animal dander. Immun Inflamm Dis 2020; 8:165-169. [PMID: 32162849 PMCID: PMC7212191 DOI: 10.1002/iid3.291] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 01/20/2020] [Accepted: 01/22/2020] [Indexed: 11/30/2022]
Abstract
Introduction Atopic dermatitis (AD) is a chronic inflammatory skin disease, and AD patients are commonly sensitized to house dust mite (HDM). Of the several treatment options available, allergen‐specific immunotherapy (AIT) has been recognized as an effective treatment modality that is directed toward the immunoglobulin E (IgE)‐mediated nature of AD, and subcutaneous administration using HDM is most commonly used for AIT in AD. For patients sensitized to animal (dog or cat) dander, the treatment may not be easy, especially when avoiding the allergen is not possible. Methods This study enrolled patients with AD who were sensitized to cat and/or dog dander and underwent AIT (n = 19). Patients’ medical information was obtained, including past treatment history, treatment duration of AIT, and the progress of treatment. Also, the specific IgE levels and IgG4 levels were measured before and after AIT. Results A total of 19 patients with AD underwent AIT using cat and/or dog dander. The patients consisted of 4 males and 15 females with an average age of 31.74 ± 9.71. Only two patients had AD only, and the other 17 patients had one or more concomitant allergic diseases, such as allergic rhinitis, allergic asthma, or allergic conjunctivitis. Seven patients were not sensitized to HDMs and only sensitized to cat and/or dog dander. The duration of AIT ranged from 2 to 58 months. The symptoms of 17 patients were well‐controlled, requiring only topical treatment and/or oral antihistamines. One patient required systemic cyclosporine, but only of low dose (25 mg/day). The specific IgE levels were decreased (P = .005) and IgG4 levels showed the tendency of increasing after AIT. No adverse events were observed in these patients. Conclusion Although a larger number of patients for a longer follow‐up period are needed to precisely assess the treatment efficacy, AIT using cat and/or dog dander may be an effective treatment option for AD patients, especially for severe AD patients with other respiratory allergic comorbidities who cannot completely avoid the exposure to animal dander.
Collapse
Affiliation(s)
- Howard Chu
- Department of Dermatology, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Kyung Hee Park
- Division of Allergy, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.,Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Su Min Kim
- Department of Dermatology, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Jae-Hyun Lee
- Division of Allergy, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.,Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Jung-Won Park
- Division of Allergy, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.,Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Kwang Hoon Lee
- Department of Dermatology, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Chang Ook Park
- Department of Dermatology, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea.,Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| |
Collapse
|
41
|
Kim SM, Ha JS, Han AR, Cho SW, Yang SJ. Effects of α-lipoic acid on LPS-induced neuroinflammation and NLRP3 inflammasome activation through the regulation of BV-2 microglial cells activation. BMB Rep 2020. [PMID: 30940325 PMCID: PMC6827572 DOI: 10.5483/bmbrep.2019.52.10.026] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Microglial cells are known as the main immune cells in the central nervous system, both regulating its immune response and maintaining its homeostasis. Furthermore, the antioxidant α-lipoic acid (LA) is a recognized therapeutic drug for diabetes because it can easily invade the blood–brain barrier. This study investigated the effect of α-LA on the inflammatory response in lipopolysaccharide (LPS)-treated BV-2 microglial cells. Our results revealed that α-LA significantly attenuated several inflammatory responses in BV-2 microglial cells, including pro-inflammatory cytokines, such as tumor necrosis factor-α and interleukin (IL)-6, and other cytotoxic molecules, such as nitric oxide and reactive oxygen species. In addition, α-LA inhibited the LPS-induced phosphorylation of ERK and p38 and its pharmacological properties were facilitated via the inhibition of the nuclear factor kappa B signaling pathway. Moreover, α-LA suppressed the activation of NOD-like receptor pyrin domain containing 3 (NLRP3) inflammasomes, multiprotein complexes consisting of NLRP3 and caspase-1, which are involved in the innate immune response. Finally, α-LA decreased the genes accountable for the M1 phenotype, IL-1β and ICAM1, whereas it increased the genes responsible for the M2 phenotype, MRC1 and ARG1. These findings suggest that α-LA alleviates the neuroinflammatory response by regulating microglial polarization.
Collapse
Affiliation(s)
- Su Min Kim
- Department of Biomedical Laboratory Science, Konyang University, Daejeon 35365, Korea
| | - Ji Sun Ha
- Department of Biomedical Laboratory Science, Konyang University, Daejeon 35365, Korea
| | - A Reum Han
- Department of Biochemistry and Molecular Biology, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Sung-Woo Cho
- Department of Biochemistry and Molecular Biology, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Seung-Ju Yang
- Department of Biomedical Laboratory Science, Konyang University, Daejeon 35365, Korea
| |
Collapse
|
42
|
Kim HY, Choi JH, Kim KH, Kim SM. 1175 Comparison of fractional myocardial mass, a vessel-specific myocardial mass-at-risk, with coronary angiographic scoring systems for predicting myocardial ischemia. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Aims The burden of coronary artery disease has been assessed by various semi-quantitative angiographic scores, which are frequently different each other. A non-invasive and quantitative modality may substitute angiographic sores for prognostic implication and decision of revascularization strategy. We compared fractional myocardial mass (FMM) with angiographic scores for predicting myocardial ischemia.
Methods In this multicenter registry, 411 patients who underwent coronary computed tomography angiography (CCTA) were followed by invasive coronary angiography and FFR measurement. CCTA–derived %FMM with diameter stenosis ≥70% (%FMM-70) or ≥50% (%FMM-50) were compared with 9 angiographic scores (APPROACH, Duke Jeopardy, BARI, CASS, SYNTAX, Jenkins, BCIS-1, Leaman, Modified Duke) and were tested regarding their performance for predicting FFR ≤ 0.80. Predictive performance of %FMM or angiographic scores for FFR ≤ 0.80 established in derivation cohort (N = 250) and tested in validation cohort (N = 161).
Results The performance of %FMM-70 and %FMM-50 were similar to most angiographic scores (%FMM-70, c-statistics = 0.76; %FMM-50, 0.71; angiographic scores, 0.68 – 0.79). The frequency of FFR ≤ 0.80 increased consistently according to %FMM-70, %FMM-50, and all angiographic scores (p < 0.001, all). The optimal cutoff of %FMM-50 and %FMM-70 for FFR ≤ 0.80 were ≥34.5% and ≥9.8%, respectively. The sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of %FMM-50 were 83%, 56%, 73%, 70%, 72%, and of %FMM-70 were 72%, 78%, 75%, 75%, and 75% using these cutoffs. Validation cohort showed consistent results.
Conclusion %FMM correlated well with angiographic scores and had a potential to be used as a non-invasive alternative to the angiographic scores. The integration of the severity of stenosis and the amount of subtended myocardium may improve the detection of clinically significant coronary artery stenosis.
Abstract 1175 Figure. FMM vs angiographic score
Collapse
Affiliation(s)
- H Y Kim
- Chonnam National University Hospital, Gwangju, Korea (Republic of)
| | - J H Choi
- Samsung Medical Center, Seoul, Korea (Republic of)
| | - K H Kim
- Chonnam National University Hospital, Gwangju, Korea (Republic of)
| | - S M Kim
- Samsung Medical Center, Seoul, Korea (Republic of)
| |
Collapse
|
43
|
Kim SM, Han Y, Yu SM, Kim SJ. Gallotannin attenuates 2‑deoxy‑D‑glucose‑induced dedifferentiation and endoplasmic reticulum stress through inhibition of inositol‑requiring enzyme 1 downstream p38 kinase pathway in chondrocytes. Mol Med Rep 2019; 20:5249-5256. [PMID: 31661132 DOI: 10.3892/mmr.2019.10773] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 09/18/2019] [Indexed: 11/06/2022] Open
Abstract
Gallotannin (GT) is a class of polyphenols with antioxidant, anticancer, and antiviral activities. 2‑Deoxy‑D‑glucose (2DG), a glucose‑derived molecule, can inhibit glucose metabolism and induce endoplasmic reticulum (ER) stress. GT in primary‑cultured chondrocytes enhances expression of type II collagen, an indicator of differentiation, and cyclooxygenase‑2 (COX‑2), which mediates inflammatory reactions. In contrast, 2DG reduces type II collagen and COX‑2 expression while driving ER‑stress‑induced unglycosylation. In the present study, it was investigated whether GT could attenuate 2DG‑induced dedifferentiation and ER‑stress. Following treatment with GT and 2DG, chondrocytes were assessed using western blotting, RT‑PCR, immunofluorescence, and alcian blue staining. GT restored type II collagen expression that was reduced by 2DG, inhibited ER‑stress‑induced COX‑2 unglycosylation, and induced COX‑2 expression. The expression of a glucose‑regulated protein, GRP78, which is an indicator of reduced ER‑stress, was decreased. To link the GT signaling pathway with pathways that inhibit 2DG‑induced dedifferentiation and ER‑stress, inhibitors were treated in chondrocytes. The results revealed that, among the different signaling pathways triggered by ER‑stress, the p38 kinase pathway was involved in the inositol‑requiring enzyme 1 (IRE1) downstream signaling pathway. Following inhibition of the IRE1 pathway, type II collagen expression was increased and COX‑2 expression was decreased. In addition, after examining the splicing of X‑box binding protein 1 (XBP‑1) which is dependent on IRE1 activation induced by ER‑stress, it was revealed that GT inhibited the increase of XBP‑1s after splicing due to 2DG‑induced ER stress. GT in chondrocytes inhibited 2DG‑induced dedifferentiation and ER‑stress‑induced COX‑2 unglycosylation while regulating differentiation and inflammation via the ER‑stress‑induced p38 kinase pathway downstream from the IRE1 pathway.
Collapse
Affiliation(s)
- Su Min Kim
- Department of Biological Sciences, College of Natural Sciences, Kongju National University, Gongju, Chungnam Do 314‑701, Republic of Korea
| | - Yohan Han
- Department of Biological Sciences, College of Natural Sciences, Kongju National University, Gongju, Chungnam Do 314‑701, Republic of Korea
| | - Seon-Mi Yu
- Department of Biological Sciences, College of Natural Sciences, Kongju National University, Gongju, Chungnam Do 314‑701, Republic of Korea
| | - Song Ja Kim
- Department of Biological Sciences, College of Natural Sciences, Kongju National University, Gongju, Chungnam Do 314‑701, Republic of Korea
| |
Collapse
|
44
|
Kim MS, Kim SM, Kim EK, Park SJ, Lee SC, Park SW, Choe YH, Chang SA. P5279Pericardial inflammation basced on cardiac magnetic resonance imaging in patients with tuberculous pericarditis. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
While constrictive pericarditis has been traditionally considered a disabling disease, reversible constrictive pericarditis has been described in previous studies. But there are limited studies on cardiac imaging of tuberculous pericarditis. In particular, no studies on cardiac magnetic resonance imaging (CMR) have been reported. We aimed to investigate CMR findings including pericardial late gadolinium enhancement (LGE) and T2 fat suppression and black blood sequences in patients with tuberculous pericarditis.
Methods
We retrospectively analyzed medical records of patients with tuberculous pericarditis between January 2010 and January 2017 in Samsung Medical Center. Definite diagnosis of tuberculous pericarditis is based on the identification of Mycobacterium tuberculosis in pericardial fluid or tissue; probable diagnosis was made when there was other evidence of tuberculosis elsewhere in patients with unexplained pericarditis. We performed CMR at initial diagnosis. Treatment consists of the standard 4-drug antituberculosis regimen for 6 months with or without steroids. Echocardiography was also conducted at initial diagnosis and 6 months later.
Results
Total 39 cases with tuberculous pericarditis in immunocompetent patients were enrolled. Ten patients were diagnosed as definite tuberculous pericarditis. CMR finding at initial diagnosis divided into five groups: 1) pericardial effusion only (n=20, 51.3%), 2) effusive constrictive pericarditis (n=5, 12.8%), 3) constrictive pericarditis (n=11, 28.2%), 4) pericardial abscess formation (n=4, 10.3%) and 5) absence of pericardial effusion and constrictive physiology (n=1, 2.6%). One of the 4 patients with pericardial abscess formation was together with pericardial effusion and the other was accompanied by effusive constrictive pericarditis. Pericardial thickness increased to more than 4mm in 25 patients (64.1%) and the mean pericardial thickness was 10.0±6.9mm. Delayed enhancement of pericardium was noticed in 29 patients (74.4%). In T2 fat suppression and black blood sequences, 30 patients showed increased T2 signal intensity indicating inflammation with extensive edema. Pericardial thickening (>4mm) with constriction (n=15) was not statistically significant in the delayed enhancement and increased T2 signal intensity compared with pericardial thickening without constrictive pericarditis (n=10) (delayed enhancement 93.8% vs. 77.8% p=0.287; increased T2 signal intensity 88.9% vs. 87.5%, p=0.713). After 6 months, only 3 patients still had constrictive pericarditis in echocardiography.
Effusive constrictive pericarditis
Conclusions
Pericardial thickening is associated with delayed enhancement and increased T2 signal intensity in patients with tuberculous pericarditis regardless of constrictive pericarditis. Even though there were hemodynamic feature of constrictive pericarditis and pericardial inflammation with extensive edema in CMR at initial diagnosis, 80% of the patients were improved from constrictive pericarditis.
Acknowledgement/Funding
None
Collapse
Affiliation(s)
- M S Kim
- Gangnam CHA General Hospital, Cardiology, Seoul, Korea (Republic of)
| | - S M Kim
- Samsung Medical Center, Radiology, Cardiovascular Imaging Center, Seoul, Korea (Republic of)
| | - E K Kim
- Samsung Medical Center, Cardiology, Seoul, Korea (Republic of)
| | - S J Park
- Samsung Medical Center, Cardiology, Seoul, Korea (Republic of)
| | - S C Lee
- Samsung Medical Center, Cardiology, Seoul, Korea (Republic of)
| | - S W Park
- Samsung Medical Center, Cardiology, Seoul, Korea (Republic of)
| | - Y H Choe
- Samsung Medical Center, Radiology, Cardiovascular Imaging Center, Seoul, Korea (Republic of)
| | - S A Chang
- Samsung Medical Center, Cardiology, Seoul, Korea (Republic of)
| |
Collapse
|
45
|
Kim SM, Ha JS, Han AR, Cho SW, Yang SJ. Effects of α-lipoic acid on LPS-induced neuroinflammation and NLRP3 inflammasome activation through the regulation of BV-2 microglial cells activation. BMB Rep 2019; 52:613-618. [PMID: 30940325 PMCID: PMC6827572] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 02/07/2019] [Accepted: 02/12/2019] [Indexed: 10/15/2023] Open
Abstract
Microglial cells are known as the main immune cells in the central nervous system, both regulating its immune response and maintaining its homeostasis. Furthermore, the antioxidant α-lipoic acid (LA) is a recognized therapeutic drug for diabetes because it can easily invade the blood-brain barrier. This study investigated the effect of α-LA on the inflammatory response in lipopolysaccharide (LPS)-treated BV-2 microglial cells. Our results revealed that α-LA significantly attenuated several inflammatory responses in BV-2 microglial cells, including pro-inflammatory cytokines, such as tumor necrosis factor-α and interleukin (IL)-6, and other cytotoxic molecules, such as nitric oxide and reactive oxygen species. In addition, α-LA inhibited the LPS-induced phosphorylation of ERK and p38 and its pharmacological properties were facilitated via the inhibition of the nuclear factor kappa B signaling pathway. Moreover, α-LA suppressed the activation of NOD-like receptor pyrin domain containing 3 (NLRP3) inflammasomes, multiprotein complexes consisting of NLRP3 and caspase-1, which are involved in the innate immune response. Finally, α-LA decreased the genes accountable for the M1 phenotype, IL-1β and ICAM1, whereas it increased the genes responsible for the M2 phenotype, MRC1 and ARG1. These findings suggest that α-LA alleviates the neuroinflammatory response by regulating microglial polarization. [BMB Reports 2019; 52(10): 613-618].
Collapse
Affiliation(s)
- Su Min Kim
- Department of Biomedical Laboratory Science, Konyang University, Daejeon 35365,
Korea
| | - Ji Sun Ha
- Department of Biomedical Laboratory Science, Konyang University, Daejeon 35365,
Korea
| | - A Reum Han
- Department of Biochemistry and Molecular Biology, University of Ulsan College of Medicine, Seoul 05505,
Korea
| | - Sung-Woo Cho
- Department of Biochemistry and Molecular Biology, University of Ulsan College of Medicine, Seoul 05505,
Korea
| | - Seung-Ju Yang
- Department of Biomedical Laboratory Science, Konyang University, Daejeon 35365,
Korea
| |
Collapse
|
46
|
Lee SK, Kim YH, Kim SM, Choy WS. A comparative study of three different surgical methods for both-forearm-bone fractures in adults. Acta Orthop Belg 2019; 85:305-316. [PMID: 31677626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The purpose of this study was to evaluate and compare the results of plate osteosynthesis, intramedullary nailing (IMN), and hybrid fixation for the treatment of both-forearm-bone shaft fractures in adults. One-hundred-one cases of both-forearm-bone shaft fractures were retrospectively reviewed. All fractures were divided into the following three groups, according to the method used for internal fixation : open reduction and internal fixation ORIF group (plate osteosynthesis), IMN group, and HYBRID group (plate osteosynthesis for the radius and intramedullary nail for the ulna). The results were assessed based on the time to union, functional recovery, restoration of the ulna and radial bow, operating time, complications, and patient satisfaction. In the ORIF, IMN, and HYBRID groups, the average union time was 10.8, 14.9, and 11.5 weeks, respectively. No intergroup differences were observed in the functional outcomes. The ORIF and HYBRID groups had a significantly better radial bow ratio compared to the IMN group. All patients in the three groups achieved union, with the exception of a single case of nonunion in the IMN group. ORIF and HYBRID fixation resulted in a more anatomical restoration of radial bow ratio, compared to the contralateral side. Such significant differences in the restoration of the radial bow had no effect on the final functional outcomes and minimal effect on forearm range of motion. Although there are statistically significant effects on the final forearm range of motion, the difference was only 5°. Thus, if the indication is properly selected, our results suggest that hybrid fixation would be acceptable and effective treatment options for both-forearm-bone fractures in adults.
Collapse
|
47
|
Nam A, Kim SM, Jeong JW, Song KH, Koo TS, Seo KW. Comparison of body surface area-based and weight-based dosing format for oral prednisolone administration in small and large-breed dogs. Pol J Vet Sci 2019; 20:611-613. [PMID: 29166276 DOI: 10.1515/pjvs-2017-0076] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This study compared the pharmacokinetics of Prednisolone (PDS) in small- and large breed dogs with a dosing format based on body surface area (BSA) or body weight (BW). The maximum concentration and area under the curve in large-breed dogs orally administered 2 mg/kg PDS were significantly greater than those in small-breed dogs given 2 mg/kg and in large-breed dogs given 40 mg/m2. The higher blood concentrations that result from BW-based dosing of oral PDS in large-breed dogs can be more than required for effect. Meanwhile, BSA dosing at 40 mg/m may be suboptimal. These findings confirm important differences between standard PDS dosing schemes in dogs while highlighting the need to further optimize PDS dosing in large-breed dogs.
Collapse
|
48
|
Kim WJ, Lee JW, Kim SM, Park KY, Chang SH, Song DG, Choy WS. Precautions for Combined Anterior and Posterior Long-Level Fusion for Adult Spinal Deformity: Perioperative Surgical Complications Related to the Anterior Procedure (Oblique Lumbar Interbody Fusion). Asian Spine J 2019; 13:823-831. [PMID: 31154755 PMCID: PMC6773981 DOI: 10.31616/asj.2018.0304] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 02/01/2019] [Indexed: 12/02/2022] Open
Abstract
Study Design Retrospective, single-center study. Purpose We aimed to determine the perioperative complications of oblique lumbar interbody fusion (OLIF) as a first-stage procedure in combined anterior and posterior operation for adult spinal deformity (ASD) along with sagittal imbalance. Specifically, we aimed to identify the radiological and clinical types of perioperative surgical complications and the factors affecting these complications. Overview of Literature OLIF has recently gained popularity, and there are several reports of good outcomes and only a few of complications with OLIF; however, a few studies have focused on the perioperative surgical complications of ASD along with sagittal imbalance. Methods The perioperative period was a 1-week interval between the anterior and posterior procedures. All patients underwent simple radiography and magnetic resonance imaging preoperatively and postoperatively. Cage placement was evaluated for displacement (i.e., subsidence and migration) and vertebral body fracture. Clinical patient complaints were evaluated perioperatively. Student t-test was used for data analysis. Results A total of 46 patients were included, totaling 138 fusion segments. A week after OLIF, 14 patients/33 segments (30.4%/23.9%) demonstrated endplate injury-associated cage placement change. Subsidence was the most common cage placement-related complication. As compared with patients without endplate injury, those with endplate injuries showed significantly larger correction angles and a higher proportion of them had larger height cages than the disk height in the full-extension lateral view. Although 32.6% of the patients experienced perioperative clinical complications, they were relatively minor and transient. The most common complication was severe postoperative pain (Visual Analog Scale score of >7), and hip flexor weakness spontaneously resolved within 1 week. Conclusions OLIF yielded more than expected endplate injuries from treatment modalities for ASD along with sagittal imbalance. Therefore, surgeons should be cautious about endplate injury during OLIF procedures. It is difficult to accomplish lordosis correction via OLIF alone; therefore, surgeons should not attempt this impractical correction goal and insert an immoderate cage.
Collapse
Affiliation(s)
- Whoan Jeang Kim
- Department of Orthopedic Surgery, Eulji University Hospital, Daejeon, Korea
| | - Jae Won Lee
- Department of Orthopedic Surgery, Eulji University Hospital, Daejeon, Korea
| | - Su Min Kim
- Department of Orthopedic Surgery, Eulji University Hospital, Daejeon, Korea
| | - Kun Young Park
- Department of Orthopedic Surgery, Eulji University Hospital, Daejeon, Korea
| | - Shann Haw Chang
- Department of Orthopedic Surgery, Eulji University Hospital, Daejeon, Korea
| | - Dae Geon Song
- Department of Orthopedic Surgery, Eulji University Hospital, Daejeon, Korea
| | - Won Sik Choy
- Department of Orthopedic Surgery, Eulji University Hospital, Daejeon, Korea
| |
Collapse
|
49
|
Kim SM, Rhyu KH, Lim SJ. Salvage of failed osteosynthesis for an atypical subtrochanteric femoral fracture associated with long-term bisphosphonate treatment using a 95° angled blade plate. Bone Joint J 2018; 100-B:1511-1517. [PMID: 30418051 DOI: 10.1302/0301-620x.100b11.bjj-2018-0306.r1] [Citation(s) in RCA: 8] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AIMS The aim of this study was to evaluate the outcomes of a salvage procedure using a 95° angled blade plate for failed osteosynthesis of atypical subtrochanteric femoral fractures associated with the long-term use of bisphosphonates. These were compared with those for failed osteosynthesis of subtrochanteric fractures not associated with bisphosphonate treatment. PATIENTS AND METHODS Between October 2008 and July 2016, 14 patients with failed osteosynthesis of an atypical subtrochanteric femoral fracture were treated with a blade plate (atypical group). Their mean age was 67.8 years (60 to 74); all were female. During the same period, 21 patients with failed osteosynthesis of a typical subtrochanteric fracture underwent restabilization using a blade plate (typical group). Outcome variables included the time of union, postoperative complications, Harris Hip Score, and Sanders functional rating scale. RESULTS In the atypical group, union was achieved in 12 patients (85.7%) at a mean of 8.4 months (4 to 12). The mean follow-up was 31.2 months (12 to 92) The plate broke in one patient requiring further stabilization with a longer plate and strut-allograft. Another patient with failure of fixation and varus angulation at the fracture site declined further surgery. In the typical group, union was achieved in 18 patients (85.7%) at a mean of 7.9 months (4 to 12). There was no difference in the mean Harris Hip Score between the two groups (83.1 points vs 86.8 points; p = 0.522) at the time of final follow-up. Sanders functional rating scores were good or excellent in 78.6% of the atypical group and in 81.0% of the typical group. CONCLUSION The 95° angled blade plate was shown to be an effective fixation modality for nonunion of atypical subtrochanteric fractures with a high rate of union and functional improvement, comparable to those after fractures not associated with bisphosphonate treatment. Cite this article: Bone Joint J 2018;100-B:1511-17.
Collapse
Affiliation(s)
- S M Kim
- Department of Orthopaedic Surgery, Korea University Guro Hospital, Korea University School of Medicine, Seoul, South Korea
| | - K H Rhyu
- Department of Orthopedic Surgery, Kyung Hee University Hospital, College of Medicine, Kyung-Hee University, Seoul, South Korea
| | - S J Lim
- Department of Orthopedic Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| |
Collapse
|
50
|
Kim SM, Jeong J, Keesee D, Kiniry JR. Development, growth, and biomass simulations of two common wetland tree species in Texas. Environ Monit Assess 2018; 190:521. [PMID: 30112684 DOI: 10.1007/s10661-018-6859-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 07/12/2018] [Indexed: 06/08/2023]
Abstract
Monitoring the health and condition of wetlands using biological assessments can serve as an effective tool for environmental managers to better evaluate and monitor the status and trends of their wetland ecosystems. Woody species can be used as conspicuous biological assessment tools due to their direct response to environmental change, such as hydrologic alteration. The purpose of this study is to use field-measured morphological measurement indices to develop and optimize tree growth parameters and growth curves using multi-model combination approach to improve tree biomass estimations. Field morphological investigations were conducted for two common wetland tree species in Texas. A range of morphological characteristics including leaf area index, height, and biomass was measured for black willow (Salix nigra Marsh) and green ash (Fraxinus pennsylvanica) sampled from 15 sites in a wetland near Cameron, Texas. The measured morphological parameters were used to optimize tree growth and development with the ALMANAC model. The developed tree growth parameters and growth curves were subsequently used in the APEX model to simulate tree biomass at the catchment scale. Both models accurately simulated biomass of trees growing in the wetland. This accurate biomass prediction will be useful to advance science to better monitor and assess wetland health on a large scale (e.g. national or global).
Collapse
Affiliation(s)
- Su Min Kim
- Oak Ridge Institute for Science and Education, Temple, TX, 76502, USA.
| | - Jaehak Jeong
- Blackland Research and Extension Center, Texas A&M AgriLife Research, Temple, TX, 76502, USA
| | - Dan Keesee
- State Wetlands Conservationist, USDA-NRCS, Temple, TX, 76501, USA
| | - James R Kiniry
- Grassland, Soil and Water Research Laboratory, USDA-ARS, Temple, TX, 76502, USA
| |
Collapse
|