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Song MK, Kim JE, Kim JT, Kang YE, Han SJ, Kim SH, Kim HJ, Ku BJ, Lee JH. GDF10 is related to obesity as an adipokine derived from subcutaneous adipose tissue. Front Endocrinol (Lausanne) 2023; 14:1159515. [PMID: 37529611 PMCID: PMC10390302 DOI: 10.3389/fendo.2023.1159515] [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] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 05/04/2023] [Indexed: 08/03/2023] Open
Abstract
Introduction Adipokines are proteins that are secreted by the adipose tissue. Although they are associated with obesity-related metabolic disorders, most studies have focused on adipokines expressed by visceral adipose tissue (VAT). This study aimed to identify the adipokine potentially derived from subcutaneous adipose tissue (SAT) and its clinical significance. Methods Samples of SAT and VAT were obtained from six adult male patients who underwent laparoscopic surgery for benign gall bladder disease. Differentially expressed genes were analyzed by subjecting the samples to RNA sequencing. The serum concentration of selected proteins according to body mass index (BMI) was analyzed in 58 individuals. Results GDF10 showed significantly higher expression in the SAT, as per RNA sequencing (fold change = 5.8, adjusted P value = 0.009). Genes related to insulin response, glucose homeostasis, lipid homeostasis, and fatty acid metabolism were suppressed when GDF10 expression was high in SAT, as per genotype-tissue expression data. The serum GDF10 concentration was higher in participants with BMI ≥ 25 kg/m2 (n = 35, 2674 ± 441 pg/mL) than in those with BMI < 25 kg/m2 (n = 23, 2339 ± 639 pg/mL; P = 0.022). There was a positive correlation between BMI and serum GDF10 concentration (r = 0.308, P = 0.019). Conclusions GDF10 expression was higher in SAT than in VAT. Serum GDF10 concentration was high in patients with obesity. Therefore, GDF10 could be a SAT-derived protein related to obesity.
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Affiliation(s)
- Mi Kyung Song
- Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Republic of Korea
| | - Ji Eun Kim
- Research Center for Endocrine and Metabolic Disease, Chungnam National University College of Medicine, Daejeon, Republic of Korea
| | - Jung Tae Kim
- Research Center for Endocrine and Metabolic Disease, Chungnam National University College of Medicine, Daejeon, Republic of Korea
| | - Yea Eun Kang
- Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Republic of Korea
- Research Center for Endocrine and Metabolic Disease, Chungnam National University College of Medicine, Daejeon, Republic of Korea
| | - Sun Jong Han
- Department of General Surgery, Chungnam National University College of Medicine, Daejeon, Republic of Korea
| | - Seok Hwan Kim
- Department of General Surgery, Chungnam National University College of Medicine, Daejeon, Republic of Korea
| | - Hyun Jin Kim
- Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Republic of Korea
- Research Center for Endocrine and Metabolic Disease, Chungnam National University College of Medicine, Daejeon, Republic of Korea
| | - Bon Jeong Ku
- Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Republic of Korea
- Research Center for Endocrine and Metabolic Disease, Chungnam National University College of Medicine, Daejeon, Republic of Korea
| | - Ju Hee Lee
- Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Republic of Korea
- Research Center for Endocrine and Metabolic Disease, Chungnam National University College of Medicine, Daejeon, Republic of Korea
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Oh CS, Chai JY, Min S, Oh KT, Seol J, Song MK, Shin DH, Seo M. Updates on parasite infection prevalence in the Joseon period based on parasitological studies of human coprolites isolated from archaeological sites in the cities of Euijeongbu, Gumi, and Wonju. Korean J Parasitol 2023; 61:89-93. [PMID: 37170469 DOI: 10.3347/phd.22129] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 12/15/2022] [Indexed: 03/02/2023]
Abstract
Parasite infection rates estimated by examining ancient coprolites can provide insights into parasitism in Joseon society. Using newly discovered Joseon period cases is essential to regularly update the parasite infection rates and reinforce the reliability of our previous estimations. In the present study, we investigated parasite infections in Joseon coprolites newly isolated from the cities of Euijeongbu, Gumi, and Wonju. We then updated the overall parasite infection rates of Joseon period samples (<i>n</i>= 30) as follows: 86.7% (26/30) for <i>Trichuris trichiura</i>, 56.7% (17/30) for <i>Ascaris lumbricoides</i>, 30.0% (9/30) for <i>Clonorchis sinensis</i>, and 30.0% (9/30) for <i>Paragonimus westermani</i>. The parasite infection rates in the Joseon society, estimated through coprolite examination, were very similar to those determined previously despite the addition of new cases to the existing data pool.
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Ryu JY, Yoon AY, Park YK, Lee WJ, Song MK, Hong JH, Park EJ, Cha SC, Yoo D, Kim MJ, Shin DH. A portrait drawing of the 17th century Korean scholar based on craniofacial reconstruction. Anat Cell Biol 2022; 55:512-519. [PMID: 35934690 PMCID: PMC9747348 DOI: 10.5115/acb.22.094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 06/16/2022] [Accepted: 06/16/2022] [Indexed: 01/02/2023] Open
Abstract
As a technique mainly hiring in forensic investigation field to identify the descents, craniofacial reconstruction (CFR) is also used in archaeology to create the faces from ancient or medieval human remains, when there is little information about his/her appearance. Eung-Cheok Ko (1531-1605) was a writer and scholar in the mid Joseon period. In January of 2019, His mummified body was found at Gumi, Kyeonsangbuk-do, Korea. The remains were anthropologically examined, and archaeological CFR was also requested for this case. This report reveals the case's facial reconstruction process and his portrait that is drawn based on the 3-dimensional CFR result.
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Affiliation(s)
- Joon Yeol Ryu
- Department of Forensic Medicine, National Forensic Service, Wonju, Korea
| | - A Young Yoon
- Visual Communication Design, Sungkyunkwan University, Seoul, Korea
| | - Yeon Kyung Park
- Department of Forensic Medicine, National Forensic Service, Wonju, Korea
| | - Won Joon Lee
- Department of Forensic Medicine, National Forensic Service Seoul Institute, Seoul, Korea,Corresponding author: Won Joon Lee, Department of Forensic Medicine, National Forensic Service Seoul Institute, Seoul 08036, Korea, E-mail:
| | - Mi Kyung Song
- Department of Fashion Design & Marketing, Seoul Women’s University, Seoul, Korea
| | - Jong Ha Hong
- Institute of Korean Archaeology and Ancient History, Kyung Hee University, Seoul, Korea
| | | | - Soon Chul Cha
- Seorabeol Institute of Cultural Heritage, Gyeongju, Korea
| | - Dongsoo Yoo
- Department of Diagnostic Radiology, Dankook University College of Medicine, Cheonan, Korea
| | - Myeung Ju Kim
- Department of Anatomy, Dankook University College of Medicine, Cheonan, Korea
| | - Dong Hoon Shin
- Department of Anatomy and Cell Biology, Seoul National University College of Medicine, Seoul, Korea,Corresponding author: Won Joon Lee, Department of Forensic Medicine, National Forensic Service Seoul Institute, Seoul 08036, Korea, E-mail:
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Han EJ, Song MK, Lee Y. The 10-year multimorbidity trajectory and mortality risk in older people with long-term care needs. Arch Gerontol Geriatr 2022; 103:104775. [PMID: 35843024 DOI: 10.1016/j.archger.2022.104775] [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: 04/27/2022] [Revised: 06/15/2022] [Accepted: 07/07/2022] [Indexed: 11/02/2022]
Abstract
BACKGROUND This study aimed to identify trajectories of multimorbidity in older adults prior to receiving long-term care benefits and to demonstrate their value in predicting mortality. METHODS This study included 1,004,924 Korean beneficiaries who completed the National Long-Term Care Insurance (NLTCI) eligibility assessment between 2010 and 2016. Multimorbidity was defined as the coexistence of 2 or more out of 23 chronic diseases related to disability in the 10 years before transitioning to long-term care. Mortality was defined as all-cause deaths after the date of the NLTCI needs assessment. Latent class growth modeling was performed to identify groups that exhibited similar trajectory patterns over time. Sex, age, and long-term care grade were used as covariates. Cox proportional hazards models were used to analyze the mortality rates by trajectories. RESULTS Three patterns emerged in the multimorbidity trajectory in the 10 years prior to entering the long-term care system: consistently low morbidity ("consistently low"), an abrupt increase in morbidity in less than one year ("catastrophic"), and an increment in morbidity over a longer period ("progressive"). In multiple Cox regression adjusting for covariates, the hazard ratios (95% confidence interval) of 1-year mortality for the catastrophic and progressive groups were 1.38 (1.36-1.39) and 1.43 (1.41-1.45), respectively, compared to the consistently low group. CONCLUSIONS This study identified distinct trajectories of multimorbidity in older people accessing the long-term care system and demonstrated their prognostic value for the survival of those with long-term care needs. Treatment and management strategies targeting individuals with a high-risk trajectory are warranted.
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Affiliation(s)
- Eun-Jeong Han
- Health Insurance Policy Research Institute, National Health Insurance Service, Wonju, South Korea
| | - Mi Kyung Song
- Health Insurance Policy Research Institute, National Health Insurance Service, Wonju, South Korea
| | - Yunhwan Lee
- Department of Preventive Medicine and Public Health, Ajou University School of Medicine, 164 World cup-ro, Youngtong-gu, Suwon 16499, South Korea..
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Song MK, Park Y, Han EJ. Development of prediction model identifying high-risk older persons in need of long-term care. KJAS 2022. [DOI: 10.5351/kjas.2022.35.4.457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Mi Kyung Song
- Health Insurance Research Institute, National Health Insurance Service
| | - Yeongwoo Park
- Health Insurance Research Institute, National Health Insurance Service
| | - Eun-Jeong Han
- Health Insurance Research Institute, National Health Insurance Service
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Kim SH, Song MK, Ku JH, Kang SH, Jeong BC, Hong B, Seo HK. A retrospective multicenter comparison of conditional cancer-specific survival between laparoscopic and open radical nephroureterectomy in locally advanced upper tract urothelial carcinoma. PLoS One 2021; 16:e0255965. [PMID: 34634058 PMCID: PMC8504730 DOI: 10.1371/journal.pone.0255965] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 07/27/2021] [Indexed: 11/18/2022] Open
Abstract
Background Upper urinary tract urothelial carcinomas are relatively rare and have a cancer-specific survival rate of 20%–30%. The current gold standard treatment for nonmetastatic high-grade urinary tract urothelial carcinoma is radical nephroureterectomy with bladder cuff resection. Objective This study aimed to compare conditional cancer-specific survival between open radical nephroureterectomy and laparoscopic radical nephroureterectomy in patients with nonmetastatic stage pT3-4 or TxN(+) locally advanced urinary tract urothelial carcinoma from five tertiary centers. Methods The medical records of 723 patients were retrospectively reviewed. The patients had locally advanced and nodal staged tumors and had undergone open radical nephroureterectomy (n = 388) or laparoscopic radical nephroureterectomy (n = 260) at five tertiary Korean institutions from January 2000 and December 2012. To control for heterogenic baseline differences between the two modalities, propensity score matching and subgroup analysis were conducted. Conditional survival analysis was also conducted to determine survival outcome and to overcome differences in follow-up duration between the groups. Results During the median 50.8-month follow up, 255 deaths occurred. In univariate analysis, significant factors affecting cancer-specific survival (e.g., age, history of bladder cancer, American Society of Anesthesiologists score, pathological N stage, and presence of lymphovascular invasion and carcinoma in situ) differed in each subsequent year. The cancer-specific survival between patients treated with open radical nephroureterectomy and laparoscopic radical nephroureterectomy was not different between patients with and without a history of bladder cancer. After adjusting baseline differences between the two groups by using propensity score matching, both groups still had no significant differences in cancer-specific survival. Conclusion The two surgical modalities showed no significant differences in the 5-year cancer-specific survival in patients with locally advanced urinary tract urothelial carcinoma.
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Affiliation(s)
- Sung Han Kim
- Department of Urology, Center for Urologic Cancer, National Cancer Center, Goyang, Republic of Korea
| | - Mi Kyung Song
- Health Insurance Research Institute, National Health Insurance Service, Wonju, Republic of Korea
| | - Ja Hyeon Ku
- Department of Urology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Seok Ho Kang
- Department of Urology, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - Byong Chang Jeong
- Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Bumsik Hong
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
- * E-mail: (HKS); (BH)
| | - Ho Kyung Seo
- Department of Urology, Center for Urologic Cancer, Hospital/Division of Tumor Immunology, Research Institute, National Cancer Center, Goyang, Republic of Korea
- * E-mail: (HKS); (BH)
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Hahn JW, Kim GB, Song MK, Lee SY, Bae EJ. Successful Fontan Completion of a Single Ventricle with Floating Dysplastic Right Ventricle within the Left Ventricle. J Cardiovasc Imaging 2021; 29:289-291. [PMID: 33605101 PMCID: PMC8318806 DOI: 10.4250/jcvi.2020.0200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 11/30/2020] [Accepted: 12/02/2020] [Indexed: 11/29/2022] Open
Affiliation(s)
- Jong Woo Hahn
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University School of Medicine, Seoul, Korea
| | - Gi Beom Kim
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University School of Medicine, Seoul, Korea.
| | - Mi Kyung Song
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University School of Medicine, Seoul, Korea
| | - Sang Yun Lee
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University School of Medicine, Seoul, Korea
| | - Eun Jung Bae
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University School of Medicine, Seoul, Korea
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8
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Kim MS, Kim GB, Kwon HW, An HS, Song MK, Lee SY, Bae EJ. Successful Sonography-Guided Thrombin Injection Treatment for Scrotal Hematoma after Cardiac Catheterization in an Adolescent. Chonnam Med J 2021; 57:87-88. [PMID: 33537224 PMCID: PMC7840354 DOI: 10.4068/cmj.2021.57.1.87] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 09/14/2020] [Accepted: 09/15/2020] [Indexed: 11/29/2022] Open
Affiliation(s)
- Min Seung Kim
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University School of Medicine, Seoul, Korea
| | - Gi Beom Kim
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University School of Medicine, Seoul, Korea
| | - Hye Won Kwon
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University School of Medicine, Seoul, Korea
| | - Hyo Soon An
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University School of Medicine, Seoul, Korea
| | - Mi Kyung Song
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University School of Medicine, Seoul, Korea
| | - Sang Yun Lee
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University School of Medicine, Seoul, Korea
| | - Eun Jung Bae
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University School of Medicine, Seoul, Korea
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9
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Kim MJ, Chang GJ, Lim HK, Song MK, Park SC, Sohn DK, Chang HJ, Kim DY, Park JW, Jeong SY, Oh JH. Oncological Impact of Lateral Lymph Node Dissection After Preoperative Chemoradiotherapy in Patients with Rectal Cancer. Ann Surg Oncol 2020; 27:3525-3533. [PMID: 32385767 DOI: 10.1245/s10434-020-08481-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Indexed: 12/15/2022]
Abstract
PURPOSE To evaluate the efficacy of selective lateral lymph node dissection (LLND) and the effect of preoperative chemoradiotherapy (PCRT) in patients with LLN ≥ 5 mm. METHODS Patients who underwent PCRT for rectal cancer were classified: (A) total mesorectal excision (TME)-only with LLN < 5 mm (2001-2009, n = 474), (B) TME-only with LLN < 5 mm (2011-2016, n = 273), (C) TME-only with LLN ≥ 5 mm (2001-2009, n = 102), and (D) TME-LLND with LLN ≥ 5 mm (2011-2016, n = 69). Subgroup analysis was performed in patients with LLN ≥ 5 mm based on the reduction in LLN size to < 5 mm or not on restaging MRI after PCRT. RESULTS Oncological outcomes did not differ between groups A and B. Group D had lower 3-year local recurrence (LR) (20.13% vs 5.39%, P = 0.0013) and higher relapse-free survival (RFS) (65.83% vs 77.11%, P = 0.0436) than group C, while the 3-year overall survival (OS) was not significantly different between the two groups (87.64% vs 93.53%, P = 0.0670). In patients with reduction of LLN size from ≥ 5 mm to < 5 mm, LLND significantly reduced LR than did TME alone, but there were no significant differences in survival outcomes. In patients without reduction of LLN size to < 5 mm, LLND reduced LR and improved RFS compared with TME alone. CONCLUSIONS Selective LLND reduced LR and improved RFS in patients with LLN ≥ 5 mm. Selective LLND reduced LR in patients with reduction of LLN size from ≥ 5 mm to < 5 mm after PCRT, and improved both LR and RFS in patients without reduction of LLN size to < 5 mm.
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Affiliation(s)
- Min Jung Kim
- Department of Surgery, Seoul National University College of Medicine, Seoul, Republic of Korea.,Cancer Research Institute, Seoul National University, Seoul, Republic of Korea
| | - George J Chang
- Department of Surgical Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Han-Ki Lim
- Center for Colorectal Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi, Republic of Korea
| | - Mi Kyung Song
- Biostatistics Collaboration Unit, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi, Republic of Korea
| | - Sung Chan Park
- Center for Colorectal Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi, Republic of Korea
| | - Dae Kyung Sohn
- Center for Colorectal Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi, Republic of Korea
| | - Hee Jin Chang
- Center for Colorectal Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi, Republic of Korea
| | - Dae Yong Kim
- Center for Colorectal Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi, Republic of Korea
| | - Ji Won Park
- Department of Surgery, Seoul National University College of Medicine, Seoul, Republic of Korea.,Cancer Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Seung-Yong Jeong
- Department of Surgery, Seoul National University College of Medicine, Seoul, Republic of Korea.,Cancer Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Jae Hwan Oh
- Center for Colorectal Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi, Republic of Korea.
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Kwon SB, Ro DH, Song MK, Han HS, Lee MC, Kim HC. Identifying key gait features associated with the radiological grade of knee osteoarthritis. Osteoarthritis Cartilage 2019; 27:1755-1760. [PMID: 31400498 DOI: 10.1016/j.joca.2019.07.014] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 07/17/2019] [Accepted: 07/23/2019] [Indexed: 02/02/2023]
Abstract
PURPOSE Knee osteoarthritis (KOA) is characterized by pain and decreased gait function. This study assessed key features that can be used as mechanical biomarkers for KOA severity and progression. The identified features were validated statistically and were further examined by developing a classification model based on a machine-learning algorithm. METHODS The study included 227 volunteers with various grades of KOA. The severity of KOA was graded using the Kellgren-Lawrence (KL) system. A total of 165 features were extracted from the gait data. The key features were selected using neighborhood component analysis. The selected features were validated using the t-test. Then, the features were examined by building a classification model using a random forest algorithm. RESULTS Twenty features were identified that could discriminate the grade of KOA, including nine features extracted from the knee joint, seven from the hip, two from the ankle and two from the spatiotemporal gait parameters. The t-test showed that some features differed significantly between health and sever group, while some were significantly different among the severe group, and others were significantly different for all KL grades. The areas under the receiver operating characteristic curves for classification were 0.974, 0.992, 0.845, 0.894, and 0.905 for KL grades 0 through 4, respectively. CONCLUSION Key gait features reflecting the grade of KOA were identified. The results of the statistical analysis and machine-learning algorithm show that the features can discriminate the severity of disease according to the KL grade.
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Affiliation(s)
- S B Kwon
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul, South Korea
| | - D H Ro
- Department of Orthopedic Surgery, Seoul National University Hospital, Seoul National University College of Medicine, South Korea
| | - M K Song
- Department of Orthopedic Surgery, Seoul National University Hospital, Seoul National University College of Medicine, South Korea
| | - H-S Han
- Department of Orthopedic Surgery, Seoul National University Hospital, Seoul National University College of Medicine, South Korea
| | - M C Lee
- Department of Orthopedic Surgery, Seoul National University Hospital, Seoul National University College of Medicine, South Korea
| | - H C Kim
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul, South Korea; Institute of Medical & Biological Engineering, Medical Research Center, Seoul National University College of Medicine, Seoul, South Korea; Department of Biomedical Engineering, Seoul National University College of Medicine, Seoul, South Korea.
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Kim SH, Song MK, Joung JY, Chung J, Lee KH, Seo HK. Significant clinicopathologic prognostic factors for bladder recurrence, progression, and cancer-specific survival after surgery among patients with upper urinary tract urothelial carcinoma. Investig Clin Urol 2019; 60:432-442. [PMID: 31692890 PMCID: PMC6821986 DOI: 10.4111/icu.2019.60.6.432] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 06/30/2019] [Indexed: 11/18/2022] Open
Abstract
Purpose This study aimed to identify prognostic factors for outcomes after radical nephroureterectomy among patients with upper urinary tract urothelial carcinoma (UTUC). Materials and Methods We retrospectively reviewed 184 nonmetastatic cases of UTUC after radical nephroureterectomy, bladder cuffing, and/or partial cystectomy (2004-2016). Bladder recurrence-free survival (BRFS), disease progression-free survival (DPFS), and cancer-specific survival (CSS) were estimated. The prognostic values of clinicopathologic parameters were evaluated by using Cox logistic regression analysis. Results The median BRFS, DPFS, and CSS values were 19.0 months, 38.5 months, and 67.0 months, respectively. We identified cases of bladder recurrence (64 cases, 34.8%), disease progression (54 cases, 29.3%), and cancer-specific death (23 cases, 12.5%). BRFS was independently associated with lymphovascular invasion (hazard ratio [HR], 0.421); DPFS was associated with intravesical instillation (HR, 0.290), active smoking (HR, 0.367), synchronous bladder lesions (HR, 2.355), and pT2 (HR, 5.199) and pT3 and pT4 (HR, 13.281) stages; and CSS was associated with alkaline phosphatase levels (HR, 0.966). Among 123 cases without previous bladder cancer, DPFS was associated with intravesical instillation (HR, 0.264), multifocal ureteral tumors (HR, 4.823), and pT3 and pT4 stages (HR, 10.899), whereas CSS was associated with pTis (HR, 32.071). Conclusions Patients with the factors we identified should receive adjuvant intravesical/systemic chemotherapy and intensive surveillance.
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Affiliation(s)
- Sung Han Kim
- Department of Urology, Center for Urologic Cancer, National Cancer Center, Goyang, Korea
| | - Mi Kyung Song
- Biometrics Research Branch, Division of Cancer Epidemiology and Prevention, Research Institute and Hospital of National Cancer Center, Goyang, Korea
| | - Jae Young Joung
- Department of Urology, Center for Urologic Cancer, National Cancer Center, Goyang, Korea
| | - Jinsoo Chung
- Department of Urology, Center for Urologic Cancer, National Cancer Center, Goyang, Korea
| | - Kang Hyun Lee
- Department of Urology, Center for Urologic Cancer, National Cancer Center, Goyang, Korea
| | - Ho Kyung Seo
- Department of Urology, Center for Urologic Cancer, National Cancer Center, Goyang, Korea
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12
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Kim SH, Song MK, Hong B, Kang SH, Jeong BC, Ku JH, Seo HK. Developing a prediction model for disease-free survival from upper urinary tract urothelial carcinoma in the Korean population. Cancer Med 2019; 8:4967-4975. [PMID: 31283107 PMCID: PMC6718545 DOI: 10.1002/cam4.2382] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 05/23/2019] [Accepted: 06/17/2019] [Indexed: 12/14/2022] Open
Abstract
Background In this study, we aimed to propose a validated prediction model for disease‐free survival (DFS) after radical nephroureterectomy (RNU) in a Korean population with upper urinary tract urothelial carcinoma (UTUC). Methods We performed a retrospective review of 1561 cases of UTUC who underwent either open RNU (ONU, n = 906) or laparoscopic RNU (LNU, n = 615) from five tertiary Korean institutions between January 2000 and December 2012. Data were used to develop a prediction model using the Cox proportional hazards model. Prognostic factors were selected using the backward variable selection method. The prediction model performance was investigated using Harrell's concordance index (C‐index) and Hosmer‐Lemeshow type 2 statistics. Internal validation was performed using a bootstrap approach, and the National Cancer Center data set (n = 128) was used for external validation. Results A best‐fitting prediction model with seven significant factors was developed. The C‐index and two Hosmer‐Lemeshow type statistics of the prediction model were 0.785 (95% CI, 0.755‐0.815), 4.810 (P = 0.8506), and 5.285 (P = 0.8088). The optimism‐corrected estimate through the internal validation was 0.774 (95% CI, 0.744‐0.804) and the optimism‐corrected calibration curve was close to the ideal line with mean absolute error = 0.012. In external validation, the discrimination was 0.657 (95% CI, 0.560‐0.755) and the two calibration statistics were 0.790 (P = 0.9397) and 3.103 (P = 0.5408), respectively. Conclusion A validated prediction model based on a large Korean RNU cohort was developed with acceptable performance to estimate DFS in patients with UTUC.
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Affiliation(s)
- Sung Han Kim
- Department of Urology, Urologic Cancer Center, National Cancer Center, Goyang, Korea
| | - Mi Kyung Song
- Health Insurance Policy Research Institute, National Health Insurance Service, Wonju, Korea
| | - Bumsik Hong
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Seok Ho Kang
- Department of Urology, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - Byong Chang Jeong
- Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Ja Hyun Ku
- Department of Urology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Ho Kyung Seo
- Department of Urology, Urologic Cancer Center, National Cancer Center, Goyang, Korea
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Cha SG, Song MK, Lee SY, Kim GB, Kwak JG, Kim WH, Bae EJ. Long-term cardiovascular outcome of Williams syndrome. CONGENIT HEART DIS 2019; 14:684-690. [PMID: 31166070 DOI: 10.1111/chd.12810] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Revised: 04/24/2019] [Accepted: 05/11/2019] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Cardiovascular lesions are the leading cause of morbidity and mortality in patients with Williams syndrome. Recent studies have rebutted conventional reports about the natural course of cardiovascular anomalies in Williams syndrome. DESIGN Retrospective study. SETTING Single tertiary center. PATIENTS Eighty patients with Williams syndrome followed up for more than 5 years. INTERVENTIONS Not applicable. OUTCOME MEASURES Long-term outcome of cardiovascular lesions, peak velocity change in obstructive cardiovascular lesions over time, post-interventional courses of disease-specific intervention, and intervention-free survival of obstructive cardiovascular lesions. RESULTS The median follow-up duration was 11.0 (5.1-28.3) years. Among 80 patients, supravalvular aortic stenosis (87.5%) was the most common cardiovascular lesion, followed by branch pulmonary stenosis (53.8%), mitral valve prolapse (22.5%), and aortic arch hypoplasia/coarctation (5.0%). During the follow-up period, the peak flow velocity of supravalvular aortic stenosis did not change on peak Doppler echocardiography. Initially, severe supravalvular aortic stenosis was aggravated (P < .027). Conversely, the peak velocity of branch pulmonary stenosis decreased (from 3.08 to 1.65 m/s; P < .001) within age 3.2 (0.4-6.9) years. Even the group with severe branch PS improved over time. Twenty-two patients (27.5%) with Williams syndrome underwent disease-specific interventions without mortality, mostly for supravalvular aortic stenosis or mitral valve prolapse. No patient in the late-onset and initially mild supravalvular aortic stenosis group needed intervention and 37.5%, 48.4%, and 65.1% in initially moderate and severe supravalvular aortic stenosis groups needed intervention at age 5, 10, and 20 years, respectively. Unlike the conventional therapeutic concept, the intervention for branch pulmonary stenosis was almost unnecessary. CONCLUSIONS In Williams syndrome, initially severe supravalvular aortic stenosis worsened over time and most branch pulmonary stenoses, including those in the severe group, improved spontaneously. Most patients with branch pulmonary stenosis did not require disease-specific intervention. Surgical repairs for cardiovascular abnormalities in Williams syndrome showed favorable results.
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Affiliation(s)
- Seul Gi Cha
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul, South Korea
| | - Mi Kyung Song
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul, South Korea
| | - Sang Yun Lee
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul, South Korea
| | - Gi Beom Kim
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul, South Korea
| | - Jae Gun Kwak
- Thoracic and Cardiovascular Surgery, Seoul National University Children's Hospital, Seoul, South Korea
| | - Woong Han Kim
- Thoracic and Cardiovascular Surgery, Seoul National University Children's Hospital, Seoul, South Korea
| | - Eun Jung Bae
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul, South Korea
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14
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Kim JK, Kim SH, Song MK, Joo J, Seo SI, Kwak C, Jeong CW, Song C, Hwang EC, Seo IY, Lee H, Hong SH, Park JY, Chung J. Survival and clinical prognostic factors in metastatic non-clear cell renal cell carcinoma treated with targeted therapy: A multi-institutional, retrospective study using the Korean metastatic renal cell carcinoma registry. Cancer Med 2019; 8:3401-3410. [PMID: 31070307 PMCID: PMC6601573 DOI: 10.1002/cam4.2222] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 04/21/2019] [Accepted: 04/22/2019] [Indexed: 12/23/2022] Open
Abstract
Objectives The optimal treatment strategy for metastatic non‐clear cell renal cell carcinoma (mNCCRCC) is still elusive and mainly extrapolated from evidence available for metastatic clear cell renal cell carcinoma. The aim of the study was therefore to investigate the survival outcomes and prognostic factors affecting survival in patients with mNCCRCC treated with targeted therapy. Materials and methods We analyzed a total of 156 patients (8.1%) with mNCCRCC among the total cohort of 1922 patients in the Korean metastatic RCC registry. We used Kaplan‐Meier curve analysis to calculate the survival estimates for first‐line progression‐free survival (PFS), total PFS, and cancer‐specific survival (CSS). We also used the log‐rank test to compare the different groups and multivariate Cox‐proportional hazard regression analyses to evaluate the prognostic factors for survival. Results The mNCCRCC group had significantly inferior survival outcomes in terms of first‐line PFS, total PFS, and CSS (all P < 0.05). We found survival benefits in patients treated with first‐line vascular endothelial growth factor‐tyrosine kinase inhibitors (VEGF‐TKIs, first‐line PFS, and total PFS, all P < 0.05), cytoreductive nephrectomy (CSS, P < 0.0001), metastasectomy (CSS, P = 0.0017), and patients with metachronous metastasis (first‐line PFS, total PFS, and CSS, all P < 0.05). Liver metastasis was the only significant prognostic factor for both first‐line PFS and CSS (all P < 0.05). Conclusions In the current targeted therapy era, survival of mNCCRCC is still inferior in comparison with that of mCCRCC patients. We found survival benefits in patients treated with first‐line VEGF‐TKIs/CN/metastasectomy, and metachronous metastasis patients.
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Affiliation(s)
- Jung Kwon Kim
- Department of Urology, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Sung Han Kim
- Department of Urology, Center for Prostate Cancer, National Cancer Center, Goyang, Republic of Korea
| | - Mi Kyung Song
- Biometric Research Branch, Center for Prostate Cancer, National Cancer Center, Goyang-si, Republic of Korea
| | - Jungnam Joo
- Biometric Research Branch, Center for Prostate Cancer, National Cancer Center, Goyang-si, Republic of Korea
| | - Seong Il Seo
- Department of Urology, Sungkyunkwan University College of Medicine, Seoul, Republic of Korea
| | - Cheol Kwak
- Department of Urology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Chang Wook Jeong
- Department of Urology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Cheryn Song
- Department of Urology, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Eu Chang Hwang
- Department of Urology, Medical School, Chonnam National University, Hwasun-gun, Republic of Korea
| | - Ill Young Seo
- Department of Urology, Wonkwang University School of Medicine and Hospital, Iksan, Republic of Korea
| | - Hakmin Lee
- Department of Urology, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Sung-Hoo Hong
- Department of Urology, Seoul St. Mary's Hospital, The Catholic University, Seoul, Republic of Korea
| | - Jae Young Park
- Department of Urology, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Republic of Korea
| | - Jinsoo Chung
- Department of Urology, Center for Prostate Cancer, National Cancer Center, Goyang, Republic of Korea
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Moon JY, Lee Y, Han JM, Lee MH, Yee J, Song MK, Kim YJ, Gwak HS. Effects of pharmacist interventions on reducing prescribing errors of investigational drugs in oncology clinical trials. J Oncol Pharm Pract 2019; 26:29-35. [DOI: 10.1177/1078155219834723] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
ObjectivesThis study aimed to investigate the effectiveness of pharmacist intervention in reducing and preventing prescribing errors of investigational drugs for cancer patients.Materials and methodsA retrospective study was conducted during two periods: a baseline period from December 2015 to June 2016 and an intervention period from July 2016 to February 2017. The investigational drug service (IDS) pharmacists performed active interventions during the intervention period.ResultsAmong 12,387 investigational drug orders, 395 (6.1%) prescribing errors were detected in 6477 orders at the baseline period, and 278 errors (4.7%) were detected in 5,910 orders at the intervention period. To identify factors that affect prescribing errors, three models were constructed for the multivariate analysis. Among factors affecting prescribing errors, sponsor initiated trial (SIT) was the strongest factor (AOR: 4.16, 95% CI: 3.31–5.23). Pharmacist intervention reduced prescribing errors by at least 25% in all constructed models after adjusting for confounding variables. Prescribing errors were 1.3 times higher when dealing with intravenous medications than when dealing with oral medications. There were 60% fewer prescribing errors in the blinded study than in the open study. SIT and multi-center/multi-nation studies had 4.2 and 2.4 times more frequent prescribing errors than in investigator-initiated trials (IIT) and single-center/single-nation studies, respectively. Fewer errors occurred in phase 2 and trials covering both phase 1 and phase 2 (phase 1/2) than in phase 3 trials.ConclusionsThe IDS pharmacist intervention in cancer clinical trials was associated with significant reductions in prescribing errors and may lead to increased medication safety.
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Affiliation(s)
- Jin Young Moon
- College of Pharmacy and Division of Life and Pharmaceutical Sciences, Ewha Womans University, Seoul, Republic of Korea
- Department of Pharmacy, National Cancer Center, Goyang-si, Republic of Korea
| | - Yeonhong Lee
- Department of Pharmacy, National Cancer Center, Goyang-si, Republic of Korea
| | - Ji Min Han
- College of Pharmacy and Division of Life and Pharmaceutical Sciences, Ewha Womans University, Seoul, Republic of Korea
| | - Mi Hyung Lee
- Department of Pharmacy, National Cancer Center, Goyang-si, Republic of Korea
- Graduate School of Converging Clinical & Public Health, Ewha Womans University, Seoul, Republic of Korea
| | - Jeong Yee
- College of Pharmacy and Division of Life and Pharmaceutical Sciences, Ewha Womans University, Seoul, Republic of Korea
| | - Mi Kyung Song
- Biometrics Research Branch, Research Institute, National Cancer Center, Goyang-si, Republic of Korea
| | - Young Ju Kim
- Department of Pharmacy, National Cancer Center, Goyang-si, Republic of Korea
| | - Hye Sun Gwak
- College of Pharmacy and Division of Life and Pharmaceutical Sciences, Ewha Womans University, Seoul, Republic of Korea
- Graduate School of Converging Clinical & Public Health, Ewha Womans University, Seoul, Republic of Korea
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16
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Kim SH, Song MK, Kim JK, Hong B, Kang SH, Ku JH, Jeong BC, Seo HK. Laparoscopy versus Open Nephroureterectomy in Prognostic Outcome of Patients with Advanced Upper Tract Urothelial Cancer: A Retrospective, Multicenter, Propensity-Score Matching Analysis. Cancer Res Treat 2018; 51:963-972. [PMID: 30322230 PMCID: PMC6639211 DOI: 10.4143/crt.2018.465] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 10/08/2018] [Indexed: 11/25/2022] Open
Abstract
Purpose The purpose of this study was to compare oncologic outcomes between open nephroureterectomy (ONU) and laparoscopic nephroureterectomy (LNU) in patients with upper tract urothelial carcinoma. Materials and Methods The medical records of consecutive ONU and LNU cases from five tertiary institutions were retrospectively analyzed between 2000 and 2012. The propensity-score matching methodology was used to compare the two surgical approaches in terms of age, body mass index, American Society of Anesthesiologists score, tumor location, grade, pathologic T and N categories, the presence of lymphovascular invasion, and follow-up duration. The Kaplan-Meier with log-rank tests and clustered Cox regression were used to compare the estimated rates of survival for each surgical approach and to investigate the effect of the surgical approach on each prognostic outcome. Results Six hundred thirty-eight propensity-score matching pairs (n=1,276) were compared; LNU was significantly better than ONU in all types of survival, including intravesical recurrence-free survival (IVRFS), disease-free survival, overall survival (OS), and cancer-specific survival (CSS) (p < 0.05). The 3-year OS and CSS rates were significantly higher with LNU than with ONU (p < 0.05). Compared with ONU, LNU had significantly better 3-year OS and CSS rates (82.9% and 86.2% vs. 78.3% and 81.8%); there were no differences at 5 years. In subgroup analysis of the early-staged group, advanced-stage group, lymph node–positive group, and lymph node–negative group, the two approaches did not significantly affect prognostic outcomes, except LNU improved the IVRFS in the lymph node–negative or no history of previous bladder cancer group. Conclusion LNU had a significantly better prognostic outcome than ONU after propensity-score matching.
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Affiliation(s)
- Sung Han Kim
- Department of Urology, Center for Prostate Cancer, National Cancer Center, Goyang, Korea
| | - Mi Kyung Song
- Biometrics Research Branch, Research Institute, National Cancer Center, Goyang, Korea
| | - Jung Kwon Kim
- Department of Urology, Center for Prostate Cancer, National Cancer Center, Goyang, Korea
| | - Bumsik Hong
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Seok Ho Kang
- Department of Urology, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Korea
| | - Ja Hyeon Ku
- Department of Urology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Byong Chang Jeong
- Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Ho Kyung Seo
- Department of Urology, Center for Prostate Cancer, National Cancer Center, Goyang, Korea
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Byun YH, Gwak HS, Kwon JW, Song MK, Shin SH, Jo YH, Yoo H, Lee SH. Local recurrence of brain metastasis reduced by intra-operative hyperthermia treatment. Int J Hyperthermia 2018; 35:168-175. [PMID: 30293465 DOI: 10.1080/02656736.2018.1488004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Abstract
PURPOSE Brain metastasis is a common complication in cancer patients. Local recurrence after total resection of metastatic brain tumor has been frequently reported. In this study, we developed a new hyperthermia device and applied it to metastatic brain tumor patients intra-operatively to study if hyperthermia treatment could reduce local tumor recurrence. MATERIALS AND METHODS A total of 63 metastatic brain patients were enrolled in the study with an informed consent obtained from every patient. After total resection of the tumor, the hyperthermia device was applied intra-operatively to the resection cavity. The surrounding brain tissue at 5 mm in depth from the tumor resection margin was raised to 42.5 °C for a total of 60 minutes (Clinical Research Information Service Registration Number: KCT0001308). RESULTS A total of 10 local recurrences were observed in 63 patients who received hyperthermia treatment showing a local recurrence rate of 15.8%. It was significantly lower than the local recurrence rate of those who received conventional treatment (34%) when analyzed with one tailed z-test (p value: .001). Kaplan-Meier analysis also showed a significantly lower recurrence rate in the hyperthermia treatment group (p value: .0003). Complications included two cases of seizures and two cases of wound infection. CONCLUSIONS Results of this study suggest that intra-operative hyperthermia treatment after total resection of metastatic brain tumor could reduce local recurrence of tumor. We believe that intra-operative hyperthermia treatment could be used as an adjuvant therapy to surgery and post-operative radiotherapy, or as a salvage treatment in patients who cannot receive further radiotherapy.
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Affiliation(s)
- Yoon Hwan Byun
- a Department of Neurosurgery , Seoul National University College of Medicine , Seoul , Republic of Korea
| | - Ho Shin Gwak
- b Neuro-Oncology Clinic Center for Specific Organs Center National Cancer Center , Goyang , Republic of Korea
| | - Ji-Woong Kwon
- b Neuro-Oncology Clinic Center for Specific Organs Center National Cancer Center , Goyang , Republic of Korea
| | - Mi Kyung Song
- c Biometric Research Branch National Cancer Center , Goyang , Republic of Korea
| | - Sang Hoon Shin
- b Neuro-Oncology Clinic Center for Specific Organs Center National Cancer Center , Goyang , Republic of Korea
| | - Yung Ho Jo
- d Department of Biomedical Engineering , National Cancer Center , Goyang , Republic of Korea
| | - Heon Yoo
- b Neuro-Oncology Clinic Center for Specific Organs Center National Cancer Center , Goyang , Republic of Korea
| | - Seung Hoon Lee
- e Department of Neurosurgery , Eulji Medical Center Eulji University , Daejeon , Republic of Korea
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Kim JK, Kim SH, Song MK, Joo J, Seo SI, Kwak C, Jeong CW, Song C, Hwang EC, Seo IY, Lee H, Hong SH, Park JY, Chung J. Application of the International Metastatic Renal Cell Carcinoma Database Consortium and Memorial Sloan Kettering Cancer Center Risk Models in Patients with Metastatic Non-Clear Cell Renal Cell Carcinoma: A Multi-Institutional Retrospective Study Using the Korean Metastatic Renal Cell Carcinoma Registry. Cancer Res Treat 2018; 51:758-768. [PMID: 30189720 PMCID: PMC6473260 DOI: 10.4143/crt.2018.421] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 09/05/2018] [Indexed: 12/31/2022] Open
Abstract
Purpose The International Metastatic Renal Cell Carcinoma Database Consortium (IMDC) and the Memorial Sloan Kettering Cancer Center (MSKCC) risk models were developed predominantly with clear cell renal cell carcinoma (RCC). Accordingly, whether these two models could be applied to metastatic non-clear cell RCC (mNCCRCC) as well has not been well-known and was investigated herein. Materials and Methods From the Korean metastatic RCC registry, a total of 156 patients (8.1%) with mNCCRCC among the entire cohort of 1,922 patients were analyzed. Both models were applied to predict first-line progression-free survival (PFS), total PFS, and cancer-specific survival (CSS). Results The median first-line PFS, total PFS, and CSS were 5, 6, and 24 months, respectively. The IMDC risk model reliably discriminated three risk groups to predict survival: the median first-line PFS, total PFS, and CSS for the favorable, intermediate, and poor risk groups were 9, 5, and, 2 months (p=0.001); 14, 7, and 2 months (p < 0.001); and 41, 21, and 8 months (p < 0.001), all respectively. The MSKCC risk model also reliably differentiated three risk groups: 9, 5, and, 2 months (p=0.005); 10, 7, and 3 months (p=0.002); and 50, 21, and 8 months (p < 0.001), also all respectively. The concordance indices were 0.632 with the IMDC model and 0.643 with the MSKCC model for first-line PFS: 0.748 and 0.655 for CSS. Conclusion The current IMDC and MSKCC risk models reliably predict first-line PFS, total PFS, and CSS in mNCCRCC.
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Affiliation(s)
- Jung Kwon Kim
- Department of Urology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Sung Han Kim
- Department of Urology, Center for Prostate Cancer, National Cancer Center, Goyang, Korea
| | - Mi Kyung Song
- Biometric Research Branch, Center for Prostate Cancer, National Cancer Center, Goyang, Korea
| | - Jungnam Joo
- Biometric Research Branch, Center for Prostate Cancer, National Cancer Center, Goyang, Korea
| | - Seong Il Seo
- Department of Urology, Sungkyunkwan University College of Medicine, Seoul, Korea
| | - Cheol Kwak
- Department of Urology, Seoul National University College of Medicine, Seoul, Korea
| | - Chang Wook Jeong
- Department of Urology, Seoul National University College of Medicine, Seoul, Korea
| | - Cheryn Song
- Department of Urology, University of Ulsan College of Medicine, Seoul, Korea
| | - Eu Chang Hwang
- Department of Urology, Medical School, Chonnam National University, Hwasun, Korea
| | - Ill Young Seo
- Department of Urology, Wonkwang University School of Medicine and Hospital, Iksan, Korea
| | - Hakmin Lee
- Department of Urology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Sung-Hoo Hong
- Department of Urology, Seoul St. Mary's Hospital, The Catholic University, Seoul, Korea
| | - Jae Young Park
- Department of Urology, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea
| | - Jinsoo Chung
- Department of Urology, Center for Prostate Cancer, National Cancer Center, Goyang, Korea
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You JK, Song MK, Kim MJ, Kim EK, Moon HJ, Youk JH, Yoon JH, Park VY, Park S, Kim SI, Park BW. Can Biannual Ultrasound Surveillance Detect Smaller Second Cancers or Detect Cancers Earlier in Patients with Breast Cancer History? Ultrasound Med Biol 2018; 44:1355-1363. [PMID: 29653773 DOI: 10.1016/j.ultrasmedbio.2018.02.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 02/08/2018] [Accepted: 02/27/2018] [Indexed: 06/08/2023]
Abstract
The aim of the work described here was to evaluate whether surveillance with biannual ultrasound (US) plus annual mammography (biannual group) for women with a history of breast cancer surgery results in earlier detection or in the detection of smaller second cancers than annual US plus mammography (annual group). Additionally, we compared the prevalence of distant metastases or palpable second cancers between the biannual and annual groups. The institutional review board of our institution approved this retrospective study, and patient consent was waived. Between January 2011 and December 2012, we retrospectively reviewed the clinical and imaging follow-up of 3023 patients with mammographic and US surveillance after breast cancer surgery to assess second cancers detected by local surveillance (locoregional recurrence, contralateral breast cancer or distant metastasis). The biannual and annual groups were divided with respect to the mean surveillance interval and compared with respect to clinicopathologic findings. Multivariable logistic regression with propensity score methods was used to examine the effect of the type of surveillance on outcomes. As for the size of the second cancer, no difference was seen between the biannual and annual groups (12.8 ± 6.6 mm vs. 14.1 ± 7.1 mm, p = 0.461); neither was there a significant difference between the groups in the presence of symptoms at the time of diagnosis of the second cancer (17.0% [8/47] vs. 10% [2/20], p = 0.711). Regardless of detection by local surveillance, the prevalence of distant metastases did not differ between the two groups (1.1% [27/2370] vs. 1.0% [7/653], p = 0.88) on univariate or multivariate analysis. The results of our retrospective study indicate that second cancers detected by biannual US surveillance in patients with a history of breast cancer surgery are not smaller and do not occur earlier than those detected by annual US surveillance. However, a randomized controlled study is required to verify these results before they can be generalized to clinical practice.
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Affiliation(s)
- Jai Kyung You
- Department of Radiology, Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, Seodaemun-gu, Seoul, Republic of Korea; Department of Radiology, NHIS Ilsan Hospital, Goyang, Republic of Korea
| | - Mi Kyung Song
- Department of Research Affairs, Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Min Jung Kim
- Department of Radiology, Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, Seodaemun-gu, Seoul, Republic of Korea.
| | - Eun-Kyung Kim
- Department of Radiology, Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, Seodaemun-gu, Seoul, Republic of Korea
| | - Hee Jung Moon
- Department of Radiology, Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, Seodaemun-gu, Seoul, Republic of Korea
| | - Ji Hyun Youk
- Department of Radiology, Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, Seodaemun-gu, Seoul, Republic of Korea
| | - Jung Hyun Yoon
- Department of Radiology, Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, Seodaemun-gu, Seoul, Republic of Korea
| | - Vivian Youngjean Park
- Department of Radiology, Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, Seodaemun-gu, Seoul, Republic of Korea
| | - Seho Park
- Department of Surgery, Severance Hospital, Yonsei University College of Medicine, Seodaemun-gu, Seoul, Republic of Korea
| | - Seung Il Kim
- Department of Surgery, Severance Hospital, Yonsei University College of Medicine, Seodaemun-gu, Seoul, Republic of Korea
| | - Byeong-Woo Park
- Department of Surgery, Severance Hospital, Yonsei University College of Medicine, Seodaemun-gu, Seoul, Republic of Korea
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Park SJ, Lee MH, Kong SY, Song MK, Joo J, Kwon Y, Lee EG, Han JH, Sim SH, Jung SY, Lee S, Lee KS, Park IH, Lee ES. Use of adjuvant chemotherapy in hormone receptor-positive breast cancer patients with or without the 21-gene expression assay. Breast Cancer Res Treat 2018. [PMID: 29516374 DOI: 10.1007/s10549-018-4740-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
PURPOSE We assessed the use of chemotherapy in breast cancer patients to investigate the factors that changed trends in chemotherapy following the adoption of the 21-gene expression assay in tumor genomic profiling. METHODS Our study used 2033 patients from the National Cancer Center in Korea diagnosed with hormone receptor (HR)-positive, human epidermal growth factor receptor 2 (HER2)-negative breast cancer (tumor size of 0.5 cm or larger and 0-3 node metastases) from 2010 to 2015. We analyzed use of the 21-gene expression assay, changes in frequency of adjuvant chemotherapy use, and clinicopathological factors related to adjuvant chemotherapy to assess the impact of the 21-gene expression assay. RESULTS Adjuvant chemotherapy use declined from 33.33% (2011) to 13.59% (2015) [relative risk (RR), 0.71; 95% CI 0.56-0.89; ptrend = 0.004] in patients with 21-gene expression assay data. Among patients without assay data, adjuvant chemotherapy use decreased from 76.79 to 40.17% between 2010 and 2015 (RR 0.87; 95% CI 0.84-0.91; ptrend < 0.001), especially for patients with node-negative/micrometastasis (RR 0.85; 95% CI 0.81-0.89; ptrend < 0.001). The frequency of adjuvant chemotherapy was significantly decreased after introduction of the 21-gene expression assay (p < 0.001). Tumor size (p < 0.001), progesterone receptor (PgR) status (p = 0.001), and proliferation index (Ki-67) levels (p < 0.001) were important factors for chemotherapy decision-making in node-negative/micrometastasis patients who did not undergo the assay. CONCLUSIONS For HR-positive, HER2-negative breast cancer patients with 0-1 node metastases, chemotherapy use declined significantly after the adoption of the 21-gene assay. PgR status and Ki-67 were useful for chemotherapy decision-making in cases without the 21-gene assay.
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Affiliation(s)
- Soo Jin Park
- Center for Breast Cancer, Research Institute and Hospital, National Cancer Center, 323 Ilsan-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, Goyang, 10408, Republic of Korea
| | - Moo Hyun Lee
- Department of Surgery, Keimyung University School of Medicine, Daegu, Republic of Korea
| | - Sun-Young Kong
- Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Republic of Korea.,Department of Laboratory Medicine & Genetic Counselling Clinics, Research Institute and Hospital, National Cancer Center, Goyang, Republic of Korea
| | - Mi Kyung Song
- Biometrics Research Branch, Division of Cancer Epidemiology and Management, Research Institute, National Cancer Center, Goyang, Republic of Korea
| | - Jungnam Joo
- Biometrics Research Branch, Division of Cancer Epidemiology and Management, Research Institute, National Cancer Center, Goyang, Republic of Korea
| | - Youngmee Kwon
- Center for Breast Cancer, Research Institute and Hospital, National Cancer Center, 323 Ilsan-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, Goyang, 10408, Republic of Korea
| | - Eun-Gyeong Lee
- Center for Breast Cancer, Research Institute and Hospital, National Cancer Center, 323 Ilsan-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, Goyang, 10408, Republic of Korea
| | - Jai Hong Han
- Center for Breast Cancer, Research Institute and Hospital, National Cancer Center, 323 Ilsan-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, Goyang, 10408, Republic of Korea
| | - Sung Hoon Sim
- Center for Breast Cancer, Research Institute and Hospital, National Cancer Center, 323 Ilsan-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, Goyang, 10408, Republic of Korea
| | - So-Youn Jung
- Center for Breast Cancer, Research Institute and Hospital, National Cancer Center, 323 Ilsan-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, Goyang, 10408, Republic of Korea
| | - Seeyoun Lee
- Center for Breast Cancer, Research Institute and Hospital, National Cancer Center, 323 Ilsan-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, Goyang, 10408, Republic of Korea
| | - Keun Seok Lee
- Center for Breast Cancer, Research Institute and Hospital, National Cancer Center, 323 Ilsan-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, Goyang, 10408, Republic of Korea
| | - In Hae Park
- Center for Breast Cancer, Research Institute and Hospital, National Cancer Center, 323 Ilsan-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, Goyang, 10408, Republic of Korea.
| | - Eun Sook Lee
- Center for Breast Cancer, Research Institute and Hospital, National Cancer Center, 323 Ilsan-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, Goyang, 10408, Republic of Korea. .,Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Republic of Korea.
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21
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Kong JS, Lee YK, Kim MK, Choi MK, Heo YR, Hyun T, Kim SM, Lyu ES, Oh SY, Park HR, Rhee MY, Ro HK, Song MK. Estimation model for habitual 24-hour urinary-sodium excretion using simple questionnaires from normotensive Koreans. PLoS One 2018; 13:e0192588. [PMID: 29447201 PMCID: PMC5813954 DOI: 10.1371/journal.pone.0192588] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Accepted: 01/27/2018] [Indexed: 11/19/2022] Open
Abstract
This study was conducted to develop an equation for estimation of 24-h urinary-sodium excretion that can serve as an alternative to 24-h dietary recall and 24-h urine collection for normotensive Korean adults. In total, data on 640 healthy Korean adults aged 19 to 69 years from 4 regions of the country were collected as a training set. In order to externally validate the equation developed from that training set, 200 subjects were recruited independently as a validation set. Due to heterogeneity by gender, we constructed a gender-specific equation for estimation of 24-h urinary-sodium excretion by using a multivariable linear regression model and assessed the performance of the developed equation in validation set. The best model consisted of age, body weight, dietary behavior (‘eating salty food’, ‘Kimchi consumption’, ‘Korean soup or stew consumption’, ‘soy sauce or red pepper paste consumption’), and smoking status in men, and age, body weight, dietary behavior (‘salt preference’, ‘eating salty food’, ‘checking sodium content for processed foods’, ‘nut consumption’), and smoking status in women, respectively. When this model was tested in the external validation set, the mean bias between the measured and estimated 24-h urinary-sodium excretion from Bland-Altman plots was -1.92 (95% CI: -113, 110) mmol/d for men and -1.51 (95% CI: -90.6, 87.6) mmol/d for women. The cut-points of sodium intake calculated based on the equations were ≥4,000 mg/d for men and ≥3,500 mg/d for women, with 89.8 and 76.6% sensitivity and 29.3 and 64.2% specificity, respectively. In this study, a habitual 24-hour urinary-sodium-excretion-estimation model of normotensive Korean adults based on anthropometric and lifestyle factors was developed and showed feasibility for an asymptomatic population.
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Affiliation(s)
- Ji-Sook Kong
- Division of Cancer Epidemiology and Prevention, National Cancer Center, Goyang, Gyeonggi, South Korea
| | - Yeon-Kyung Lee
- Department of Food Science and Nutrition, Kyungpook National University, Daegu, South Korea
| | - Mi Kyung Kim
- Division of Cancer Epidemiology and Prevention, National Cancer Center, Goyang, Gyeonggi, South Korea
- * E-mail:
| | - Mi-Kyeong Choi
- Division of Food Science, Kongju National University, Yesan, South Korea
| | - Young-Ran Heo
- Department of Food and Nutrition, Chonnam National University, Gwangju, South Korea
| | - Taisun Hyun
- Department of Food and Nutrition, Chungbuk National University, Cheongju, South Korea
| | - Sun Mee Kim
- Department of Family Medicine, College of Medicine, Korea University, Seoul, South Korea
| | - Eun-Soon Lyu
- Department of Food Science and Nutrition, Pukyong National University, Busan, South Korea
| | - Se-Young Oh
- Department of Food and Nutrition, Kyunghee University, Seoul, South Korea
| | - Hae-Ryun Park
- Department of Food and Nutrition, Myongji University, Yongin, South Korea
| | - Moo-Yong Rhee
- Cardiovascular Center, Dongguk University Ilsan Hospital, Goyang, Gyeonggi, South Korea
| | - Hee-Kyong Ro
- Department of Food and Nutrition, Dongshin University, Naju, South Korea
| | - Mi Kyung Song
- Biometrics Research Branch and Biostatistics Collaboration Unit, Division of Cancer Epidemiology and Prevention, Research Institute and Hospital, National Cancer Center, Goyang, Korea, National Cancer Center, Goyang, Gyeonggi, South Korea
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22
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Baek SM, Chung H, Kim GB, Song MK, Bae EJ, Noh CI. Vocal Cord Palsy after Left Pulmonary Artery Stent Insertion. Chonnam Med J 2018; 54:72-73. [PMID: 29399569 PMCID: PMC5794482 DOI: 10.4068/cmj.2018.54.1.72] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 10/30/2017] [Accepted: 10/31/2017] [Indexed: 12/26/2022] Open
Affiliation(s)
- Seung Min Baek
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University School of Medicine, Seoul, Korea
| | - Hyun Chung
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University School of Medicine, Seoul, Korea
| | - Gi Beom Kim
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University School of Medicine, Seoul, Korea
| | - Mi Kyung Song
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University School of Medicine, Seoul, Korea
| | - Eun Jung Bae
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University School of Medicine, Seoul, Korea
| | - Chung Il Noh
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University School of Medicine, Seoul, Korea
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23
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Cho E, Kim EK, Song MK, Yoon JH. Application of Computer-Aided Diagnosis on Breast Ultrasonography: Evaluation of Diagnostic Performances and Agreement of Radiologists According to Different Levels of Experience. J Ultrasound Med 2018; 37:209-216. [PMID: 28762552 DOI: 10.1002/jum.14332] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Accepted: 04/10/2017] [Indexed: 05/26/2023]
Abstract
OBJECTIVES To investigate the feasibility of a computer-aided diagnosis (CAD) system (S-Detect; Samsung Medison, Co, Ltd, Seoul, Korea) for breast ultrasonography (US), according to radiologists with various degrees of experience in breast imaging. METHODS From December 2015 to March 2016, 119 breast masses in 116 women were included. Ultrasonographic images of the breast masses were retrospectively reviewed and analyzed by 2 radiologists specializing in breast imaging (7 and 1 years of experience, respectively) and S-Detect, according to the individual ultrasonographic descriptors from the fifth edition of the American College of Radiology Breast Imaging Reporting and Data System and final assessment categories. Diagnostic performance and the interobserver agreement among the radiologists and S-Detect was calculated and compared. RESULTS Among the 119 breast masses, 54 (45.4%) were malignant, and 65 (54.6%) were benign. Compared to the radiologists, S-Detect had higher specificity (90.8% compared to 49.2% and 55.4%) and positive predictive value (PPV; 86.7% compared to 60.7% and 63.8%) (all P < .001). Both radiologists had significantly improved specificity, PPV, and accuracy when using S-Detect compared to US alone (all P < .001). The area under the receiving operating characteristic curves of the both radiologists did not show a significant improvement when applying S-Detect compared to US alone (all P > .05). Moderate agreement was seen in final assessments made by each radiologist and S-Detect (κ = 0.40 and 0.45, respectively). CONCLUSIONS S-Detect is a clinically feasible diagnostic tool that can be used to improve the specificity, PPV, and accuracy of breast US, with a moderate degree of agreement in final assessments, regardless of the experience of the radiologist.
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Affiliation(s)
- Eun Cho
- Department of Radiology, Severance Hospital, Research Institute of Radiological Science, Yonsei University College of Medicine, Seoul, Korea
| | - Eun-Kyung Kim
- Department of Radiology, Severance Hospital, Research Institute of Radiological Science, Yonsei University College of Medicine, Seoul, Korea
| | - Mi Kyung Song
- Department of Research Affairs, Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, Korea
| | - Jung Hyun Yoon
- Department of Radiology, Severance Hospital, Research Institute of Radiological Science, Yonsei University College of Medicine, Seoul, Korea
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Kim JH, Kim MJ, You JS, Song MK, Cho SI. Do Emergency Physicians Improve the Appropriateness of Emergency Transfer in Rural Areas? J Emerg Med 2017; 54:287-294. [PMID: 29074031 DOI: 10.1016/j.jemermed.2017.08.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 06/22/2017] [Accepted: 08/08/2017] [Indexed: 10/18/2022]
Abstract
BACKGROUND Until recently, there have been few studies on the transfer of patients from emergency departments (EDs) overall, as such studies were limited primarily to trauma patients. OBJECTIVES The purpose of this study was to investigate the association between the specialty of the primary referring physician and the appropriateness of the emergency transfer (AET). METHODS This was a retrospective, observational study performed at two level-3 EDs in a rural area. A transfer to a higher-level ED for the purpose of patient stabilization was defined as an emergency transfer, and transfers were classified as "appropriate" when the emergency status of the patient could not be resolved by the referring ED. The primary outcome was AET, which was reviewed by an expert panel for reliability. Statistically significant variables were selected as covariates based on the results of a univariate analysis, and a multivariate logistic regression analysis was performed to estimate the odds ratios (ORs) with 95% confidence intervals (CIs) on the AET. RESULTS A total of 1325 patients underwent transfer to another hospital from the two EDs. Of these, 1003 were classified into the emergency transfer group. In both EDs, the incidence of appropriate emergency transfers was significantly higher when the primary referring physician was an emergency physician (OR 4.005, 95% CI 2.619-6.125 and OR 4.006, 95% CI 1.696-9.459 for each hospital, respectively). CONCLUSION There was a positive association between the specialty of the primary referring physician and the AET among EDs located in rural areas making patient transfers.
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Affiliation(s)
- Ji Hoon Kim
- Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea; Department of Epidemiology, Graduate School of Public Health, Seoul National University, Seoul, Republic of Korea
| | - Min Joung Kim
- Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Je Sung You
- Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Mi Kyung Song
- Department of Research Affairs, Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sung Il Cho
- Department of Epidemiology, Graduate School of Public Health, Seoul National University, Seoul, Republic of Korea
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25
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Bang JS, Kim GB, Kwon BS, Song MK, An HS, Song YW, Bae EJ, Noh CI. Long-Term Prognosis for Patients with Kawasaki Disease Complicated by Large Coronary Aneurysm (diameter ≥6 mm). Korean Circ J 2017; 47:516-522. [PMID: 28765744 PMCID: PMC5537154 DOI: 10.4070/kcj.2016.0163] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Revised: 11/01/2016] [Accepted: 11/29/2016] [Indexed: 12/11/2022] Open
Abstract
Background and Objectives Some patients with Kawasaki disease (KD) develop large coronary aneurysms and subsequent coronary stenosis or obstruction, leading to ischemic heart disease. This study examined the long-term outcomes of patients with KD complicated by large coronary aneurysms. Subjects and Methods The medical records of 71 patients (53 men and 18 women) diagnosed with large coronary aneurysms (diameter ≥6 mm) between December 1986 and December 2013 were retrospectively reviewed from our institutional database. Results The mean age at onset was 4.6±3.3 years, and the mean follow-up duration was 12.5±6.9 years. Maximum coronary artery internal diameter ranged from 6.1 to 25 mm. Giant coronary aneurysms occurred in 48 patients and coronary aneurysms 6-8 mm in diameter developed in 23 patients. Coronary stenosis and/or complete occlusion occurred in 30 patients (42.3%). Catheter and/or surgical interventions (mean: 1.5 interventions, range: 1-5 interventions) were performed in 20 patients (28.2%), 9 months to 18 years after KD onset, resulting in 33.7% cumulative coronary intervention rates at 20 years after onset. There were no differences in cumulative coronary intervention rates between two coronary aneurysm groups (6-8 mm vs. ≥8 mm). Myocardial infarction occurred in 7 patients with a giant aneurysm and there was one death. Conclusions Long-term survival of patients with KD complicated by large coronary aneurysm was good even though 28.2% of patients underwent multiple catheter or surgical interventions. Careful follow-up is also necessary in KD patients with coronary aneurysms 6-8 mm in diameter, such as those with giant aneurysms.
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Affiliation(s)
- Ji Seok Bang
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul, Korea.,Department of Pediatrics, Sejong General Hospital, Bucheon, Korea
| | - Gi Beom Kim
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul, Korea
| | - Bo Sang Kwon
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul, Korea
| | - Mi Kyung Song
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul, Korea
| | - Hyo Soon An
- Department of Pediatrics, Seoul National University Boramae Hospital, Seoul, Korea
| | - Young Whan Song
- Department of Pediatrics, Bundang Seoul National University Hospital, Seongnam, Korea
| | - Eun Jung Bae
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul, Korea
| | - Chung Il Noh
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul, Korea
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Park JW, Jeong SY, Kang SB, Joo J, Song MK, Lim SB, Choi HS, Kim DW, Chang HJ, Kim DY, Jung KH, Kim TY, Kang GH, Chie EK, Kim SY, Sohn DK, Kim JS, Lee HS, Kim JH, Oh JH. Comparison of long-term survival outcomes between laparoscopic and open surgery for mid or low rectal cancer treated with preoperative chemoradiotherapy: 7-year follow-up of COREAN trial. J Clin Oncol 2017. [DOI: 10.1200/jco.2017.35.15_suppl.3518] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
3518 Background: Laparoscopic surgery for rectal cancer has been used widely. However, recent two randomized trials raised concerns about short-term oncologic safety of laparoscopic surgery for rectal cancer. The aim of this study was to evaluate the long-term oncologic safety of laparoscopic surgery for rectal cancer based on 7-year data from the Comparison of Open versus laparoscopic surgery for mid or low REctal cancer After Neoadjuvant chemoradiotherapy (COREAN) trial. Methods: COREAN trial was a non-inferiority, randomized controlled trial. Between April, 2006, and Aug, 2009, eligible participants with mid or low rectal cancer treated with preoperative chemoradiotherapy were randomly assigned (1:1) to laparoscopic (n = 170) or open surgery (n = 170). Seven-year outcomes included overall and disease-free survival, and local recurrence. Log-rank test and stratified Cox regression analysis were used for survival analysis. Analysis was by intention to treat. Results: The median follow-up times were 84 months (IQR: 61.5-97.0). No differences were found between laparoscopic and open surgery group in terms of overall and disease-free survival, and local recurrence (7-year overall survival: 83.2% [laparoscopic] vs 77.3% [open], p = 0.48; 7-year disease-free survival: 71.6% [laparoscopic] vs 64.3% [open], p = 0.20; 7-year local recurrence: 3.3% [laparoscopic] vs 7.9% [open], p = 0.08). Stratified Cox regression analysis adjusted for ypT, ypN and tumor regression grade showed no significant difference between groups in terms of overall and disease-free survival, and local recurrence. The hazard ratios for overall survival, disease-free survival and local recurrence (open vs laparoscopic surgery) were 0.96 (95% CI = 0.58-1.57), 1.03 (95% CI = 0.70-1.53), and 2.28 (95% CI = 0.82-7.16), respectively. Conclusions: The 7-year analysis confirm the long-term oncological safety of laparoscopic surgery for rectal cancer treated with preoperative chemoradiotherapy. The use of laparoscopic surgery does not compromise the long-term survival outcomes in rectal cancer. Clinical trial information: NCT00470951.
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Affiliation(s)
- Ji Won Park
- Department of Surgery, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Seung-Yong Jeong
- Department of Surgery, Seoul National University College of Medicine, Seoul, South Korea
| | - Sung-Bum Kang
- Department of Surgery, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Jungnam Joo
- Biometric Research Branch, Division of Cancer Epidemiology and Prevention, Research Institute and Hospital, National Cancer Center, Goyang, Republic of Korea
| | - Mi Kyung Song
- Biometric Research Branch, Division of Cancer Epidemiology and Prevention, Research Institute and Hospital, National Cancer Center, Goyang, Republic of Korea
| | - Seok-Byung Lim
- Department of Colon and Rectal Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Hyo Seong Choi
- Department of Surgery, Bombit Women's Medical Service, Anyang, Republic of Korea
| | - Duck-Woo Kim
- Department of Surgery, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Hee Jin Chang
- Center for Colorectal Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Republic of Korea
| | - Dae Yong Kim
- Center for Colorectal Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Republic of Korea
| | - Kyung Hae Jung
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Tae-You Kim
- Division of Medical Oncology and Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Gyeong Hoon Kang
- Department of Pathology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Eui Kyu Chie
- Department of Radiation Oncology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Sun Young Kim
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Dae Kyung Sohn
- Center for Colorectal Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Republic of Korea
| | - Jae-Sung Kim
- Department of Radiation Oncology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Hye-Seung Lee
- Department of Pathology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Jee Hyun Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Jae Hwan Oh
- Center for Colorectal Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Republic of Korea
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Yoon JH, Song MK, Kim EK. Semi-Quantitative Strain Ratio Determined Using Different Measurement Methods: Comparison of Strain Ratio Values and Diagnostic Performance Using One- versus Two-Region-of-Interest Measurement. Ultrasound Med Biol 2017; 43:911-917. [PMID: 28242085 DOI: 10.1016/j.ultrasmedbio.2017.01.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 08/09/2016] [Revised: 12/21/2016] [Accepted: 01/07/2017] [Indexed: 06/06/2023]
Abstract
We evaluated the agreement and diagnostic performance of strain ratio values using measurements made with one and two user-defined regions of interest (ROIs) on breast elastography. Two hundred forty-three breast masses of 226 women (mean age: 48.2 y) were included. Ultrasonography (US) and elastography images of the masses were recorded. Strain ratio was measured twice on the same elastography image; strain ratio 1, applying one ROI at the target mass for measurement, and strain ratio 2, applying one ROI at the target mass and another ROI as reference strain. The two strain ratio measurements were in substantial agreement, with an intra-class correlation coefficient of 0.655 (95% confidence interval: 0.577-0.722). Specificity, positive predictive value and accuracy (cutoffs: 2.66 and 2.35) were significantly improved for US combined with the two strain ratio measurements (all p values < 0.05). Strain ratios measured using one or two user-defined ROIs were in substantial agreement, both contributing to the improved diagnostic performance of breast US.
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Affiliation(s)
- Jung Hyun Yoon
- Department of Radiology, Severance Hospital, Research Institute of Radiological Science, Yonsei University College of Medicine, Seoul, Korea
| | - Mi Kyung Song
- Department of Research Affairs, Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, Korea
| | - Eun-Kyung Kim
- Department of Radiology, Severance Hospital, Research Institute of Radiological Science, Yonsei University College of Medicine, Seoul, Korea.
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28
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Choi HY, Huh KH, Lee JG, Song MK, Kim MS, Kim YS, Kim BS. Variability of the Estimated Glomerular Filtration Rate in the First Year after Kidney Transplantation Is an Independent Risk Factor for Poor Renal Allograft Outcomes: A Retrospective Cohort Study. PLoS One 2016; 11:e0168337. [PMID: 27973553 PMCID: PMC5156409 DOI: 10.1371/journal.pone.0168337] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Accepted: 11/10/2016] [Indexed: 01/07/2023] Open
Abstract
Renal function in the first year after kidney transplantation (KT) can predict long-term renal graft survival. This study investigated whether estimated glomerular filtration rate (eGFR) variability during the first year after KT is a risk factor for poor renal allograft outcomes. This retrospective cohort study included 3077 patients who underwent repeated eGFR measurements for 1 year after KT at Severance Hospital Transplantation Center between 1979 and 2012. The eGFR variability during the first year after KT was the predictor. The patients were divided into four quartile groups of eGFR variability according to the coefficient of variation for eGFR (eGFR-CV). We selected a cutoff of eGFR-CV for graft failure and performed the sensitivity analyses. The graft outcome was worse in the highest quartile group of eGFR variability than in the other groups among all patients (Q4: HR 1.631, 95% CI 1.278-2.081; p < 0.0001) and among patients without AR (Q4: HR 1.425, 95% CI 1.024-1.982; p = 0.0358) after adjusting for eGFR at 1 year after KT and other covariates. Additionally, all-cause mortality was higher in this highest quartile group than in the other groups among all patients but not among patients without AR. Higher eGFR-CVs than the cutoff were significantly associated with a high risk of graft failure among all patients (HR 1.670, 95% CI 1.395-2.000; p < 0.0001) and among patients without AR (HR 1.899, 95% CI 1.457-2.477; p < 0.0001) after fully adjusting for covariates. For all-cause mortality, a higher eGFR-CV was an independent risk factor among all patients but not among patients without AR after adjusting for covariates. eGFR variability in the first year after KT is an independent risk factor for poor renal allograft outcomes.
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Affiliation(s)
- Hoon Young Choi
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Kyu Ha Huh
- Department of Transplantation Surgery, Severance Hospital, Yonsei University Health System, Seoul, Korea
- The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Jae Geun Lee
- Department of Transplantation Surgery, Severance Hospital, Yonsei University Health System, Seoul, Korea
- The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Mi Kyung Song
- Department of Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, Korea
| | - Myoung Soo Kim
- Department of Transplantation Surgery, Severance Hospital, Yonsei University Health System, Seoul, Korea
- The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Yu Seun Kim
- Department of Transplantation Surgery, Severance Hospital, Yonsei University Health System, Seoul, Korea
- The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Beom Seok Kim
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
- The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
- * E-mail:
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29
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Lee SJ, Kim KM, Lee EY, Song MK, Kang DR, Kim HC, Youm Y, Yun YM, Park HY, Kim CO, Rhee Y. Low Normal TSH levels are Associated with Impaired BMD and Hip Geometry in the Elderly. Aging Dis 2016; 7:734-743. [PMID: 28053824 PMCID: PMC5198865 DOI: 10.14336/ad.2016.0325] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Accepted: 03/25/2016] [Indexed: 11/20/2022] Open
Abstract
Subclinical hyperthyroidism is known to be associated with the risk of fractures in elderly people. However, there are few studies assessing whether low normal thyroid-stimulating hormone (TSH) levels affect bone density and geometry. Here, we aimed to assess the influence of the TSH level on bone mineral density (BMD) and geometry in elderly euthyroid subjects. This was a cross-sectional cohort study. A total of 343 men and 674 women with euthyroidism were included and analyzed separately. The subjects were divided into tertiles based on the serum TSH level. The BMD and geometry were measured using dual-energy X-ray absorptiometry and a hip structural analysis program. Multiple regression analysis was used to compute the odds ratios of osteoporosis in the lower TSH tertile group and the association between geometry parameters and the TSH level. We found that the femoral neck and total hip BMDs were lower in the lower TSH tertile group. In women, the cross-sectional area and cortical thickness of the femur were negatively associated with the TSH level in all three regions (the narrow neck, intertrochanter, and femoral shaft); however, in men, these geometry parameters were significantly associated with the TSH level only in the intertrochanter region. The buckling ratio, a bone geometry parameter representing cortical instability, was significantly higher in the lower TSH tertile group in all three regions in women, but not in men. Our results indicated that lower TSH levels in the euthyroid range are related to lower BMD and weaker femoral structure in elderly women.
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Affiliation(s)
- Su Jin Lee
- 1Department of Internal Medicine, Severance Hospital, Endocrine Research Institute, Yonsei University College of Medicine, Seoul, Korea; 2Department of Internal Medicine, National Health Insurance Service Ilsan Hospital, Goyang, Korea
| | - Kyoung Min Kim
- 3Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Eun Young Lee
- 4Division of Endocrinology and Metabolism, Department of Internal Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea
| | - Mi Kyung Song
- 5Department of Research Affairs, Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, Korea
| | - Dae Ryong Kang
- 6Office of Biostatistics, Ajou University School of Medicine, Suwon, Korea
| | - Hyeon Chang Kim
- 7Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Yoosik Youm
- 8Department of Sociology, Yonsei University, Seoul, Korea
| | - Young Mi Yun
- 5Department of Research Affairs, Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, Korea
| | - Hyun-Young Park
- 9Division of Cardiovascular and Rare Diseases, Korea National Institute of Health, Osong, Korea
| | - Chang Oh Kim
- 10Division of Geriatrics, Department of Internal Medicine, Severance Hospital, Seoul, Korea
| | - Yumie Rhee
- 1Department of Internal Medicine, Severance Hospital, Endocrine Research Institute, Yonsei University College of Medicine, Seoul, Korea
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Yoon JH, Song MK, Kim EK. Semi-Quantitative Strain Ratio in the Differential Diagnosis of Breast Masses: Measurements Using One Region-of-Interest. Ultrasound Med Biol 2016; 42:1800-1806. [PMID: 27166015 DOI: 10.1016/j.ultrasmedbio.2016.03.030] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Revised: 02/04/2016] [Accepted: 03/28/2016] [Indexed: 06/05/2023]
Abstract
The purpose of this study was to evaluate the diagnostic performances of semi-quantitative strain ratio measured by using one region-of-interest (ROI) on breast US elastography images. Two hundred one breast masses of 165 women (mean age: 47.2 y) were included. Ultrasonography (US) and elastography images of the masses were obtained and prospectively analyzed according to elasticity pattern, strain ratio, and final Breast Imaging-Reporting and Data System (BI-RADS) assessments. Of the 201 breast masses, 127 (63.2%) were benign and 74 (36.8%) were malignant. Elastography pattern and strain ratio (cut-off of 1.44) had significantly higher specificity than gray-scale US, 39.4% and 61.4% versus 29.1%, respectively (all p < 0.05). Area under the receiver operating characteristics curve (Az) was highest for gray-scale US (0.646), without statistical significances, than for elastography pattern (0.596, p = 0.159) or strain ratio (0.625, p = 0.610). Semi-quantitative strain ratio measured from one ROI has comparable diagnostic performances to gray-scale US, which may contribute to more accurate differential diagnosis of breast masses seen on US.
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Affiliation(s)
- Jung Hyun Yoon
- Department of Radiology, Severance Hospital, Research Institute of Radiological Science, Yonsei University College of Medicine, Seoul, Korea
| | - Mi Kyung Song
- Department of Research Affairs, Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, Korea
| | - Eun-Kyung Kim
- Department of Radiology, Severance Hospital, Research Institute of Radiological Science, Yonsei University College of Medicine, Seoul, Korea.
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Kim SY, Kim EK, Moon HJ, Yoon JH, Kwon HJ, Song MK, Kwak JY. Combined use of conventional smear and liquid-based preparation versus conventional smear for thyroid fine-needle aspiration. Endocrine 2016; 53:157-65. [PMID: 26714459 DOI: 10.1007/s12020-015-0835-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 12/14/2015] [Indexed: 01/29/2023]
Abstract
The purpose of the study was to compare the diagnostic utility of the combined conventional smear (CS) and liquid-based preparation (LBP) compared to CS with respect to the non-diagnostic rate, the atypia of undetermined significance (AUS) or follicular lesion of undetermined significance (FLUS) rate, and the diagnostic performances for malignancy. This retrospective study was approved by the Institutional Review Board, and the need to obtain informed consent was waived. In our institution, thyroid FNAs were processed with CS before October 2012, and LBP has been used in combination with CS after October 2012. On-site evaluation for the adequacy of CS was not performed. This study included nodules 5 mm or larger with FNAs performed by faculties: 811 nodules in 773 patients for CS, and 926 nodules in 894 patients for combined CS and LBP. Nodules with surgery or either benign or malignancy cytology on initial or repeat FNA were regarded to have the reference standards needed to calculate diagnostic performances. The proportion of Bethesda categories and diagnostic performances were compared between the two groups with z test. The non-diagnostic rate, the AUS or FLUS rate, and the diagnostic performances for malignancy were similar (All P > 0.05). The follicular neoplasm (FN) or suspicious for FN rate decreased from 1.2 to 0.3 % (P = 0.034). The benign rate increased from 51.4 to 57.0 % (P = 0.019). Combined CS and LBP decreased FN or suspicious for FN diagnoses, and increased benign diagnoses compared to CS with comparable non-diagnostic rates and AUS or FLUS rates, and comparable diagnostic performances.
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Affiliation(s)
- Soo-Yeon Kim
- Department of Radiology, Severance Hospital, Research Institute of Radiological Science, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-752, Republic of Korea
| | - Eun-Kyung Kim
- Department of Radiology, Severance Hospital, Research Institute of Radiological Science, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-752, Republic of Korea
| | - Hee Jung Moon
- Department of Radiology, Severance Hospital, Research Institute of Radiological Science, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-752, Republic of Korea
| | - Jung Hyun Yoon
- Department of Radiology, Severance Hospital, Research Institute of Radiological Science, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-752, Republic of Korea
| | - Hyeong Ju Kwon
- Department of Pathology, Yonsei University College of Medicine, Seoul, Republic of Korea
- Department of Pathology, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Mi Kyung Song
- Biostatistics Collaboration Unit, Department of Research Affairs, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jin Young Kwak
- Department of Radiology, Severance Hospital, Research Institute of Radiological Science, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-752, Republic of Korea.
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Kim K, Song MK, Kim EK, Yoon JH. Clinical application of S-Detect to breast masses on ultrasonography: a study evaluating the diagnostic performance and agreement with a dedicated breast radiologist. Ultrasonography 2016; 36:3-9. [PMID: 27184656 PMCID: PMC5207353 DOI: 10.14366/usg.16012] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 03/31/2016] [Accepted: 04/14/2016] [Indexed: 12/12/2022] Open
Abstract
Purpose The purpose of this study was to evaluate the diagnostic performance of S-Detect when applied to breast ultrasonography (US), and the agreement with an experienced radiologist specializing in breast imaging. Methods From June to August 2015, 192 breast masses in 175 women were included. US features of the breast masses were retrospectively analyzed by a radiologist who specializes in breast imaging and S-Detect, according to the fourth edition of the American College of Radiology Breast Imaging Reporting and Data System lexicon and final assessment categories. Final assessments from S-Detect were in dichotomized form: possibly benign and possibly malignant. Kappa statistics were used to analyze the agreement between the radiologist and S-Detect. Diagnostic performance of the radiologist and S-Detect was calculated, including sensitivity, specificity, positive predictive value (PPV), negative predictive value, accuracy, and area under the receiving operator characteristics curve. Results Of the 192 breast masses, 72 (37.5%) were malignant, and 120 (62.5%) were benign. Benign masses among category 4a had higher rates of possibly benign assessment on S-Detect for the radiologist, 63.5% to 36.5%, respectively (P=0.797). When the cutoff was set at category 4a, the specificity, PPV, and accuracy was significantly higher in S-Detect compared to the radiologist (all P<0.05), with a higher area under the receiver operator characteristics curve of 0.725 compared to 0.653 (P=0.038). Moderate agreement (k=0.58) was seen in the final assessment between the radiologist and S-Detect. Conclusion S-Detect may be used as an additional diagnostic tool to improve the specificity of breast US in clinical practice, and guide in decision making for breast masses detected on US.
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Affiliation(s)
- Kiwook Kim
- Department of Radiology, Severance Hospital, Research Institute of Radiological Science, Seoul, Korea
| | - Mi Kyung Song
- Department of Research Affairs, Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, Korea
| | - Eun-Kyung Kim
- Department of Radiology, Severance Hospital, Research Institute of Radiological Science, Seoul, Korea
| | - Jung Hyun Yoon
- Department of Radiology, Severance Hospital, Research Institute of Radiological Science, Seoul, Korea
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Choi HY, Joo DJ, Song MK, Kim MS, Park HC, Kim YS, Kim BS. The Power of Renal Function Estimation Equations for Predicting Long-Term Kidney Graft Survival: A Retrospective Comparison of the Chronic Kidney Disease Epidemiology Collaboration and the Modification of Diet in Renal Disease Study Equations. Medicine (Baltimore) 2016; 95:e2682. [PMID: 26886606 PMCID: PMC4998606 DOI: 10.1097/md.0000000000002682] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 01/04/2016] [Accepted: 01/09/2016] [Indexed: 01/06/2023] Open
Abstract
Evaluation of renal function using an accurate estimation equation is important for predicting long-term graft survival. We designed this retrospective cohort study to evaluate the predictive power of renal function estimation by the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) and the Modification of Diet in Renal Disease (MDRD) study equations for graft survival. We reviewed data of 3290 adult kidney transplant recipients who underwent transplantation at a single center between April 1979 and September 2012. The reliability and agreement of chronic kidney disease (CKD) stages based on the estimated glomerular filtration rate (eGFR) as calculated by the CKD-EPI and MDRD equations were evaluated using Bland-Altman plots and Cohen weighted kappa analyses. The predictive power of CKD stages as classified by each equation for graft survival was investigated using Cox regression models. Additionally, Pearson and Spearman correlation coefficients were used to reveal the relationship between graft survival and eGFR equations. Of 3290 kidney transplant recipients, 3040 were included in the analysis. The mean follow-up duration was 128.08 ± 83.54 months, and 29.8% of participants were reclassified to higher eGFR categories by the CKD-EPI equation compared to the category classification by the MDRD equation. eGFR calculated using the MDRD equation was underestimated compared to that calculated using the CKD-EPI equation, based on the Bland-Altman plot. In Cohen weighted kappa analysis, agreement across CKD stages classified using the 2 equations was reliable, but all CKD stages classified using the MDRD equation appeared to be in lower eGFR categories than those classified using the CKD-EPI equation. Pearson and Spearman correlation analyses indicated that the CKD stage as classified by the CKD-EPI equation, but not the MDRD equation, was significantly correlated with the risk of graft failure. In multivariable Cox regression analysis for graft failure after adjustment for CKD stage as determined using the MDRD equation, but not the CKD-EPI equation, stage reclassification was significantly associated with a lower graft failure risk. Our data from this long-term follow-up study indicate that the CKD-EPI equation has a stronger predictive power for kidney graft survival than does the MDRD equation in transplantation settings.
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Affiliation(s)
- Hoon Young Choi
- From the Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea (HYC, HCP, BSK); Department of Transplantation Surgery, Severance Hospital, Yonsei University Health System, Seoul, Korea (DJJ, MSK, YSK); The Research Institute for Transplantation (DJJ, MSK, YSK, BSK); and Department of Biostatistics Collaboration Unit (MKS), Yonsei University College of Medicine, Seoul, Korea
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Abstract
Background. Total laparoscopic hysterectomy (TLH) causes various types of postoperative pain, and the pain pattern has not been evaluated in detail to date. This prospective observational study investigated the types of postoperative pain, intensity in the course of time, and pain characteristics during the first postoperative 72 hr after TLH. Methods. Sixty four female patients undergoing TLH were enrolled, which finally 50 patients were included for the data analyses. The locations of pain included overall pain, abdominal visceral and incisional pains, shoulder pain, and perineal pain. Assessments were made at rest and in motion, and pain level was scored with the use of the 100 mm visual analog scale. The pain was assessed at baseline, and at postoperative 30 min, 1 hr, 3 hr, 6 hr, 24 hr, 48 hr, and 72 hr. Results. Overall, visceral, and incisional pains were most intense on the day of operation and then decreased following surgery. In contrast, shoulder pain gradually increased, peaking at postoperative 24 hr. Shoulder pain developed in 90% of all patients (44/50). It was not more aggravated in motion than at rest, in comparison with other pains, and right shoulder pain was more severe than left shoulder pain (p=0.006). In addition, the preoperative exercise habit of patients increased the threshold of shoulder pain. Most patients (46/50) had perineal pain, which was more severe than abdominal pain in approximately 30% of patients (17/50). Conclusion. Pain after TLH showed considerably different duration, severity, and characteristics, compared with other laparoscopic procedures. Shoulder pain was most intense at postoperative 24 hr, and the intensity was associated with the prior exercise habit of patients and the high level of analgesic request.
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Affiliation(s)
- Jong Bum Choi
- 1. Department of Anesthesiology and Pain Medicine, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Kyeongjin Kang
- 2. Department of Anatomy and Cell Biology, School of Medicine, Sungkyunkwan University, Seoul, Republic of Korea
| | - Mi Kyung Song
- 3. Department of Research Affairs, Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Suhyun Seok
- 1. Department of Anesthesiology and Pain Medicine, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Yoon Hee Kim
- 4. Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Ji Eun Kim
- 1. Department of Anesthesiology and Pain Medicine, Ajou University School of Medicine, Suwon, Republic of Korea
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Park SH, Kim HS, Park MS, Moon S, Song MK, Park HS, Hahn H, Kim SJ, Bae E, Kim HJ, Han BW. Structure and Stability of the Dimeric Triosephosphate Isomerase from the Thermophilic Archaeon Thermoplasma acidophilum. PLoS One 2015; 10:e0145331. [PMID: 26709515 PMCID: PMC4692482 DOI: 10.1371/journal.pone.0145331] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Accepted: 12/02/2015] [Indexed: 01/03/2023] Open
Abstract
Thermoplasma acidophilum is a thermophilic archaeon that uses both non-phosphorylative Entner-Doudoroff (ED) pathway and Embden-Meyerhof-Parnas (EMP) pathway for glucose degradation. While triosephosphate isomerase (TPI), a well-known glycolytic enzyme, is not involved in the ED pathway in T. acidophilum, it has been considered to play an important role in the EMP pathway. Here, we report crystal structures of apo- and glycerol-3-phosphate-bound TPI from T. acidophilum (TaTPI). TaTPI adopts the canonical TIM-barrel fold with eight α-helices and parallel eight β-strands. Although TaTPI shares ~30% sequence identity to other TPIs from thermophilic species that adopt tetrameric conformation for enzymatic activity in their harsh physiological environments, TaTPI exists as a dimer in solution. We confirmed the dimeric conformation of TaTPI by analytical ultracentrifugation and size-exclusion chromatography. Helix 5 as well as helix 4 of thermostable tetrameric TPIs have been known to play crucial roles in oligomerization, forming a hydrophobic interface. However, TaTPI contains unique charged-amino acid residues in the helix 5 and adopts dimer conformation. TaTPI exhibits the apparent Td value of 74.6°C and maintains its overall structure with some changes in the secondary structure contents at extremely acidic conditions (pH 1–2). Based on our structural and biophysical analyses of TaTPI, more compact structure of the protomer with reduced length of loops and certain patches on the surface could account for the robust nature of Thermoplasma acidophilum TPI.
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Affiliation(s)
- Sang Ho Park
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, Korea
| | - Hyoun Sook Kim
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, Korea
| | - Mi Seul Park
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, Korea
| | - Sojin Moon
- Department of Agricultural Biotechnology, Seoul National University, Seoul, Korea
| | - Mi Kyung Song
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, Korea
| | - Han Su Park
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, Korea
| | - Hyunggu Hahn
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, Korea
| | - Soon-Jong Kim
- Department of Chemistry, Mokpo National University, Chonnam, Korea
| | - Euiyoung Bae
- Department of Agricultural Biotechnology, Seoul National University, Seoul, Korea
| | - Hyun-Jung Kim
- College of Pharmacy, Chung-Ang University, Seoul, Korea
| | - Byung Woo Han
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, Korea
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Jeong DH, Kim WR, Min BS, Kim YW, Song MK, Kim NK. Validation of a quantitative 12-multigene expression assay (Oncotype DX(®) Colon Cancer Assay) in Korean patients with stage II colon cancer: implication of ethnic differences contributing to differences in gene expression. Onco Targets Ther 2015; 8:3817-25. [PMID: 26719709 PMCID: PMC4689269 DOI: 10.2147/ott.s95543] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Purpose To evaluate the Recurrence Score® of the quantitative 12-multigene expression assay and to determine risk groups based on the continuous Recurrence Score® in Korean patients. Method A total of 95 patients with pathological T3N0 tumors and mismatch repair-proficient tumors were enrolled. The Recurrence Score® was used to classify risk groups (low risk, <30; intermediate risk, 30–40; high risk, ≥41). Results Fifty-four patients (56.8%) were aged over 70 years. There were 49 men (51.6%) and 56 cases of right-sided colon cancer (58.9%). Eight cases (8.4%) had well-differentiated tumors, and 86 cases (90.5%) showed moderate differentiation. Only one case (1.1%) had a poorly differentiated tumor. Three patients (3.2%) had lymphovascular invasion. Sixty-one patients were identified as low risk (64.2%) and 34 patients as intermediate risk (35.8%). There were no high-risk patients. Although not significant, the 3-year recurrence risk increased with the Recurrence Score®. Conclusion Distribution patterns of risk groups based on the Recurrence Score®, particularly the absence of a high-risk group, were different from the prior validation studies. These findings suggest that ethnic differences between Koreans and Western patients are potential contributing factors for different gene expressions in the quantitative 12-multigene expression assay.
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Affiliation(s)
- Duck Hyoun Jeong
- Department of Surgery, Yonsei University College of Medicine, Seoul, Seoul, Korea
| | - Woo Ram Kim
- Department of Surgery, Yonsei University College of Medicine, Seoul, Seoul, Korea
| | - Byung Soh Min
- Department of Surgery, Yonsei University College of Medicine, Seoul, Seoul, Korea
| | - Young Wan Kim
- Department of Surgery, Wonju College of Medicine, Wonju, Seoul, Korea
| | - Mi Kyung Song
- Department of Research Affairs, Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, Korea
| | - Nam Kyu Kim
- Department of Surgery, Yonsei University College of Medicine, Seoul, Seoul, Korea
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Shim DH, Park YA, Kim MJ, Hong JY, Baek JY, Kim KW, Byun YH, Seong BL, Ryu S, Song MK, Hong KJ, Na W, Song D, Park JH, Sohn MH, Lee JM. Pandemic influenza virus, pH1N1, induces asthmatic symptoms via activation of innate lymphoid cells. Pediatr Allergy Immunol 2015; 26:780-8. [PMID: 26287507 DOI: 10.1111/pai.12462] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [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] [Accepted: 08/13/2015] [Indexed: 02/03/2023]
Abstract
BACKGROUND The pandemic strain of the influenza A virus (pH1N1) in 2009 caused many complications in patients. In this study, we introduce asthmatic symptoms as a complication of pH1N1 infection in children, not having a relationship with asthma history. The aim of this study was to quantify asthmatic symptoms in pH1N1-infected children and elucidate the underlying mechanisms of airway hyper-responsiveness (AHR) induced in a murine model of pH1N1 infection. METHODS As a retrospective study, pH1N1-infected children who were hospitalized with moderate to severe acute asthmatic symptoms were enrolled and administered a methacholine challenge test (MCT) at 3 months post-discharge. Additionally, the induction of AHR by pH1N1 infection was measured by MCT in wild-type and Rag1(-/-) mice. The effect of the innate immune response on the development of AHR following pH1N1 infection was investigated. RESULTS More than 70% of the pH1N1-infected children without a pre-infection diagnosis of asthma had a negative response on the MCT. None of these children had recurrent wheezing or asthma during the 3 years following pH1N1 infection. The development of AHR in pH1N1-infected mice was associated with an elevation in IL-33 and innate lymphoid cells 2 (ILC2). CONCLUSIONS This study demonstrates that pH1N1 infection directly induces transient asthmatic symptoms in patients regardless of their medical history. pH1N1 infection was shown to stimulate the rapid development of AHR and Th2-type cytokine secretion in mice via the activation of ILC2; it may be activated independently of adaptive immunity.
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Affiliation(s)
- D H Shim
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul, Republic of Korea.,Departments of Food and Animal Biotechnology, School of Agricultural Biotechnology and Center for Agricultural Biomaterials, Seoul National University, Seoul, Republic of Korea
| | - Y A Park
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul, Republic of Korea.,Department of Pediatrics and Institute of Allergy, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - M J Kim
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul, Republic of Korea.,Department of Pediatrics and Institute of Allergy, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - J Y Hong
- Department of Pediatrics and Institute of Allergy, Severance Hospital, 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
| | - J Y Baek
- Department of Pediatrics and Institute of Allergy, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - K W Kim
- Department of Pediatrics and Institute of Allergy, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Y-H Byun
- Laboratory of Molecular Medicine, Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, Republic of Korea
| | - B-L Seong
- Laboratory of Molecular Medicine, Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, Republic of Korea
| | - S Ryu
- Departments of Food and Animal Biotechnology, School of Agricultural Biotechnology and Center for Agricultural Biomaterials, Seoul National University, Seoul, Republic of Korea
| | - M K Song
- Laboratory Science Division, International Vaccine Institute, Seoul, Republic of Korea
| | - K-J Hong
- ATgen Co. Ltd., Sungnam, 463-400, Republic of Korea
| | - W Na
- Viral Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea.,University of Science and Technology, Daejeon, Republic of Korea
| | - D Song
- Viral Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea.,University of Science and Technology, Daejeon, Republic of Korea
| | - J H Park
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - M H Sohn
- Department of Pediatrics and Institute of Allergy, Severance Hospital, 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
| | - J M Lee
- Department of Microbiology and Immunology, 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
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Shin S, Han DW, Lee HS, Song MK, Jun EK, Kim SY. Elderly Patients Require Higher Doses of Sugammadex for Rapid Recovery from Deep Neuromuscular Block. Basic Clin Pharmacol Toxicol 2015; 118:462-7. [DOI: 10.1111/bcpt.12507] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2015] [Accepted: 10/20/2015] [Indexed: 12/14/2022]
Affiliation(s)
- Seokyung Shin
- Department of Anesthesiology and Pain Medicine; Severance Hospital; Yonsei University College of Medicine; Seoul Korea
- Anesthesia and Pain Research Institute; Yonsei University College of Medicine; Seoul Korea
| | - Dong Woo Han
- Anesthesia and Pain Research Institute; Yonsei University College of Medicine; Seoul Korea
- Department of Anesthesiology and Pain Medicine; Gangnam Severance Hospital; Yonsei University College of Medicine; Seoul Korea
| | - Hye Sun Lee
- Department of Research Affairs; Biostatistics Collaboration Unit; Yonsei University College of Medicine; Seoul Korea
| | - Mi Kyung Song
- Department of Research Affairs; Biostatistics Collaboration Unit; Yonsei University College of Medicine; Seoul Korea
| | - Eun-kyung Jun
- Department of Anesthesiology and Pain Medicine; Severance Hospital; Yonsei University College of Medicine; Seoul Korea
| | - So Yeon Kim
- Department of Anesthesiology and Pain Medicine; Severance Hospital; Yonsei University College of Medicine; Seoul Korea
- Anesthesia and Pain Research Institute; Yonsei University College of Medicine; Seoul Korea
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Jung JW, Han SJ, Song MK, Kim TI, Kim EK, Min YH, Cheong JW, Seo KY. Tear Cytokines as Biomarkers for Chronic Graft-versus-Host Disease. Biol Blood Marrow Transplant 2015; 21:2079-2085. [PMID: 26303101 DOI: 10.1016/j.bbmt.2015.08.020] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 08/14/2015] [Indexed: 01/11/2023]
Abstract
We investigated the tear cytokine profiles in patients who underwent stem cell transplantation (SCT) and attempted to evaluate whether tear cytokines are associated with the presence of systemic chronic graft-versus-host disease (GVHD), regardless of ocular GVHD status. We also tested tear cytokines as biomarkers for chronic ocular GVHD severity. Forty-four patients who underwent SCT were enrolled and their diagnosis of chronic GVHD was confirmed. Ocular surface parameters and tear cytokine profiles were evaluated and the correlations between concentrations of cytokines and ocular surface parameters or several chronic ocular GVHD severity scales were evaluated. Tear interleukin (IL)-2, IL-10, IL-17α, interferon (IFN)-γ, IL-6, and tumor necrosis factor (TNF)-α were elevated in patients with chronic systemic GVHD compared with patients without chronic systemic GVHD. Receiver-operating characteristic curve analysis revealed that area under the curve (AUC) values for tear IL-10 (AUC = .795), IL-17α (AUC = .821), IL-6 (AUC = .912), and TNF-α (AUC = .910) were significantly correlated with the presence of chronic GVHD (all P < .001). Tear IL-10, IL-6, and TNF-α showed a stronger correlation with ocular surface parameters than other cytokines and these cytokines also correlated with several chronic ocular GVHD severity scales (all P < .05). Our data suggest the tear cytokines are useful biomarkers for the diagnosis of chronic GVHD after SCT and chronic ocular GVHD severity.
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Affiliation(s)
- Ji Won Jung
- Department of Ophthalmology, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea; Department of Ophthalmology and Inha Vision Science Laboratory, Inha University School of Medicine, Incheon, South Korea
| | - Soo Jung Han
- Department of Ophthalmology, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Mi Kyung Song
- Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, South Korea
| | - Tae-Im Kim
- Department of Ophthalmology, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Eung Kweon Kim
- Department of Ophthalmology, Corneal Dystrophy Research Institute, Yonsei University College of Medicine, Seoul, South Korea/Institute of Vision Research, Severance Biomedical Science Institute, Brain Korea 21 Plus Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea
| | - Yoo Hong Min
- Division of Hematology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, South Korea
| | - June-Won Cheong
- Division of Hematology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, South Korea
| | - Kyoung Yul Seo
- Department of Ophthalmology, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea.
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Shim CN, Song MK, Lee HS, Chung H, Lee H, Shin SK, Lee SK, Lee YC, Park JC. Prediction of survival by tumor area on endosonography after definitive chemoradiotherapy for locally advanced squamous cell carcinoma of the esophagus. Digestion 2015; 90:98-107. [PMID: 25196528 DOI: 10.1159/000365073] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Accepted: 06/04/2014] [Indexed: 02/04/2023]
Abstract
BACKGROUND Definitive chemoradiotherapy (CRT) is a reasonable approach for patients with locally advanced esophageal cancer who are not surgical candidates. This study was performed to investigate whether endosonography (EUS) assessment of tumor area response is a useful prognostic marker in patients with squamous cell carcinoma (SCC) of the esophagus who receive definitive CRT. METHODS A total of 33 patients who received definitive CRT for locally advanced esophageal SCC were enrolled. The maximal transverse cross-sectional area of the tumor was measured before and after definitive therapy. EUS response was defined as a ≥50% reduction of the tumor area after definitive CRT. RESULTS Based on EUS evaluation, there were 20 nonresponders (60.6%) and 13 responders (39.4%). The median progression-free survival (PFS) was significantly longer in EUS responders than EUS nonresponders (p = 0.005). However, there was no statistical significance in overall survival according to EUS response (p = 0.120). During multivariate analysis, EUS response to definitive CRT was the only significant factor associated with PFS (p = 0.045), whereas EUS response to definitive CRT was not associated with overall survival (p = 0.221). CONCLUSIONS A reduction of the maximal cross-sectional tumor area measured by EUS correlates with a superior prognosis in patients with locally advanced SCC of the esophagus after definitive CRT.
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Affiliation(s)
- Choong Nam Shim
- Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea
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Oh J, Kang SM, Song MK, Hong N, Youn JC, Han S, Jeon ES, Cho MC, Kim JJ, Yoo BS, Chae SC, Oh BH, Choi DJ, Lee MM, Ryu KH. Clinical benefit of spironolactone in patients with acute decompensated heart failure and severe renal dysfunction: Data from the Korean Heart Failure Registry. Am Heart J 2015; 169:713-720.e3. [PMID: 25965719 DOI: 10.1016/j.ahj.2015.01.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2014] [Accepted: 01/17/2015] [Indexed: 01/10/2023]
Abstract
BACKGROUNDS We investigated the relationship between spironolactone use and all-cause mortality in acute decompensated heart failure (ADHF) patients with severe renal dysfunction. The clinical benefit of spironolactone in the treatment of heart failure (HF) has been described in several large randomized clinical trials. However, its clinical benefits have not been studied in hospitalized ADHF patients with severe renal dysfunction (estimated glomerular filtration rate [eGFR] <45 mL/min per 1.73 m(2)). METHODS AND RESULTS We retrospectively analyzed data from the Korean Heart Failure Registry. We included 1,035 ADHF patients with severe renal dysfunction. In Kaplan-Meier survival analysis, all-cause mortality in the spironolactone-treated group was significantly lower than that in the nonspironolactone group (18.1% vs 24.9%, respectively, log rank P = .028). However, spironolactone use was not an independent predictor after adjusting other HF risk factors (hazard ratio 0.974, 95% CI 0.681-1.392, P = .884) and after propensity score matching (P = .115). In subgroup analysis, the clinical benefit of spironolactone use was preserved in women, prehospital spironolactone use, the chronic kidney disease stage 3b (eGFR 30-44 mL/min per 1.73 m(2)), and the appropriate spironolactone use (eGFR ≥30 mL/min per 1.73 m(2) and K ≤5.0 mmol/L). CONCLUSION The spironolactone therapy was not beneficial in ADHF patients with severe renal dysfunction after multivariable adjusting and propensity score matching. However, we reassured the current HF guidelines for spironolactone use and the clinical benefit in chronic kidney disease stage 3b should be assessed in future clinical trial.
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Affiliation(s)
- Jaewon Oh
- Cardiology Division, Severance Cardiovascular Hospital and Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Seok-Min Kang
- Cardiology Division, Severance Cardiovascular Hospital and Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea.
| | - Mi Kyung Song
- Department of Research Affairs, Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Namki Hong
- Cardiology Division, Severance Cardiovascular Hospital and Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jong-Chan Youn
- Cardiology Division, Severance Cardiovascular Hospital and Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Seongwoo Han
- Cardiology Division, Hallym University Medical Center, Hwaseong, Korea
| | - Eun-Seok Jeon
- Cardiology Division, Sungkyunkwan University Samsung Medical Center, Seoul, Republic of Korea
| | - Myeong-Chan Cho
- Cardiology Division, Chungbuk National University Hospital, Cheongju, Republic of Korea
| | - Jae-Joong Kim
- Cardiology Division, Ulsan University Asan Medical Center, Seoul, Republic of Korea
| | - Byung-Su Yoo
- Cardiology Division, Yonsei University Wonju Christian Hospital, Wonju, Republic of Korea
| | - Shung Chull Chae
- Cardiology Division, Kyungpook National University Hospital, Daegu, Republic of Korea
| | - Byung-Hee Oh
- Cardiology Division, Seoul National University Hospital, Seoul, Republic of Korea
| | - Dong-Ju Choi
- Cardiology Division, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Myung-Mook Lee
- Cardiology Division, Dongguk University Ilsan Hospital, Goyang, Republic of Korea
| | - Kyu-Hyung Ryu
- Cardiology Division, Hallym University Medical Center, Hwaseong, Korea
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Kim YB, Kim HW, Song MK, Rhee MS. Decontamination method using heat and relative humidity for radish seeds achieves a 7-log reduction of Escherichia coli O157:H7 without affecting product quality. Int J Food Microbiol 2015; 201:42-6. [PMID: 25732001 DOI: 10.1016/j.ijfoodmicro.2015.02.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Revised: 02/16/2015] [Accepted: 02/17/2015] [Indexed: 10/24/2022]
Abstract
We developed a novel decontamination method to inactivate Escherichia coli O157:H7 on radish seeds without adversely affecting seed germination or product quality. The use of heat (55, 60, and 65 °C) combined with relative humidity (RH; 25, 45, 65, 85, and 100%) for 24h was evaluated for effective microbial reduction and preservation of seed germination rates. A significant two-way interaction of heat and RH was observed for both microbial reduction and germination rate (P<0.0001). Increases in heat and RH were associated with corresponding reductions in E. coli O157:H7 and in germination rate (P<0.05). The order of lethality for the different treatments was generally as follows: no treatment <55 °C/25-65% RH ≒60 °C/25-45% RH ≒65 °C/25% RH <55 °C/85% RH =60 °C/65% RH <55 °C/100% RH =60 °C/85-100% RH =65 °C/45-100% RH. The most effective condition, 65 °C/45% RH, completely inactivated E. coli O157:H7 on the seeds (7.0 log CFU/g reduction) and had no significant effect on the germination rate (85.4%; P>0.05) or product quality. The method uses only heat and relative humidity without chemicals, and is thus applicable as a general decontamination procedure in spout producing plants where the use of growth chambers is the norm.
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Affiliation(s)
- Y B Kim
- Department of Food Bioscience and Technology, College of Life Sciences and Biotechnology, Korea University, Seoul 136-713, Republic of Korea
| | - H W Kim
- Department of Food Bioscience and Technology, College of Life Sciences and Biotechnology, Korea University, Seoul 136-713, Republic of Korea
| | - M K Song
- Department of Food Bioscience and Technology, College of Life Sciences and Biotechnology, Korea University, Seoul 136-713, Republic of Korea
| | - M S Rhee
- Department of Food Bioscience and Technology, College of Life Sciences and Biotechnology, Korea University, Seoul 136-713, Republic of Korea.
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Hwang S, Shin DY, Song MK, Lee EJ. High cut-off value of a chimeric TSH receptor (Mc4)-based bioassay may improve prediction of relapse in Graves' disease for 12 months. Endocrine 2015; 48:89-95. [PMID: 24968734 DOI: 10.1007/s12020-014-0325-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Accepted: 06/02/2014] [Indexed: 10/25/2022]
Abstract
There are scarce reports regarding a functional prognostic value of thyroid-stimulating autoantibody (TSAb) levels using a thyroid-stimulating hormone receptor chimera (Mc4) in Graves' disease (GD) in iodine sufficient area. The aim of this study was to investigate whether Mc4-TSAb can predict GD remission/relapse after antithyroid drug (ATD) treatment and to compare Mc4-TSAb with a binding assay using M22 monoclonal antibody (M22-TRAb) in GD patients. We retrospectively reviewed the results of M22-TRAb and Mc4-TSAb in GD patients treated with ATD for 12 months. GD patients who underwent ATD treatment for at least 12 months were included. We compared the predictive values of M22-TRAb and Mc4-TSAb for GD remission and relapse. Of the 92 patients, 60 (65.2%) achieved remission and 32 (34.8%) relapsed within 12 months. In receiver operating characteristic analysis, there were no significant differences in the area under the curves (AUCs) between Mc4-TSAb [AUC=0.79 (95% CI 0.69-0.89)] and M22-TRAb [AUC=0.69 (95% CI 0.58-0.81)]. The optimal predictive cut-off values of M22-TRAb and Mc4-TSAb were 2.23 IU/L and 230%, respectively. At a high Mc4-TSAb cut-off, the better specificity of 85.0% and positive predictive value (PPV) of 69.0% were shown compared with those at the best cut-off for M22-TRAb. In conclusion, a high cut-off for an Mc4 assay may improve the predictive value of relapse with superior specificity and PPV compared with M22-TRAb in treated GD.
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Affiliation(s)
- Sena Hwang
- Division of Endocrinology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, 120-752, Republic of Korea
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Qin WZ, Li CY, Kim JK, Ju JG, Song MK. Effects of Defaunation on Fermentation Characteristics and Methane Production by Rumen Microbes In vitro When Incubated with Starchy Feed Sources. Asian-Australas J Anim Sci 2014; 25:1381-8. [PMID: 25049493 PMCID: PMC4093010 DOI: 10.5713/ajas.2012.12240] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/30/2012] [Revised: 07/01/2012] [Accepted: 06/16/2012] [Indexed: 11/30/2022]
Abstract
An in vitro experiment was conducted to examine the effects of defaunation (removal of protozoa) on ruminal fermentation characteristics, CH4 production and degradation by rumen microbes when incubated with cereal grains (corn, wheat and rye). Sodium lauryl sulfate as a defaunation reagent was added into the culture solution at a concentration of 0.000375 g/ml, and incubated anaerobically for up to 12 h at 39°C. Following defaunation, live protozoa in the culture solution were rarely observed by microscopic examination. A difference in pH was found among grains regardless of defaunation at all incubation times (p<0.01 to 0.001). Defaunation significantly decreased pH at 12 h (p<0.05) when rumen fluid was incubated with grains. Ammonia-N concentration was increased by defaunation for all grains at 6 h (p<0.05) and 12 h (p<0.05) incubation times. Total VFA concentration was increased by defaunation at 6 h (p<0.05) and 12 h (p<0.01) for all grains. Meanwhile, defaunation decreased acetate and butyrate proportions at 6 h (p<0.05, p<0.01) and 12 h (p<0.01, p<0.001), but increased the propionate proportion at 3 h, 6 h and 12 h incubation (p<0.01 to 0.001) for all grains. Defaunation increased in vitro effective degradability of DM (p<0.05). Production of total gas and CO2 was decreased by defaunation for all grains at 1 h (p<0.05, p<0.05) and then increased at 6 h (p<0.05, p<0.05) and 12 h (p<0.05, p<0.05). CH4 production was higher from faunation than from defaunation at all incubation times (p<0.05).
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Affiliation(s)
- W Z Qin
- Institute of Animal Science, Yanbian academy of agricultural sciences, Longjing, Jilin, China
| | - C Y Li
- Department of Animal Scicence, Yanbian University, Yanji, Jilin, China
| | - J K Kim
- Institute of Animal Science, Yanbian academy of agricultural sciences, Longjing, Jilin, China
| | - J G Ju
- Institute of Animal Science, Yanbian academy of agricultural sciences, Longjing, Jilin, China
| | - M K Song
- Institute of Animal Science, Yanbian academy of agricultural sciences, Longjing, Jilin, China
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Huh JH, Song MK, Park KH, Kim KJ, Kim JE, Rhee YM, Lim SK. Gender-specific pleiotropic bone-muscle relationship in the elderly from a nationwide survey (KNHANES IV). Osteoporos Int 2014; 25:1053-61. [PMID: 24150214 DOI: 10.1007/s00198-013-2531-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2013] [Accepted: 09/25/2013] [Indexed: 12/16/2022]
Abstract
SUMMARY The aim of this study was to examine the gender-specific association between sarcopenia and bone geometry/metabolic parameters. Low muscle mass was associated with greater deterioration of bone than in deterioration of glucose or lipid profiles. This bone-muscle relationship was more prominent in men than in women. INTRODUCTION There are few studies that report on gender differences in the effects of low muscle mass on bone and metabolic parameters in elderly subjects. This study aimed to assess the gender-specific influence of muscle mass on bone and metabolic parameters. METHODS A total of 2,264 participants (940 men and 1,324 women) whose age ranged from 65 to 92 years were analyzed using data from The Fourth Korea National Health and Nutrition Examination Surveys (2008-2009). We measured bone mineral density (BMD) and appendicular muscle mass using the dual-energy X-ray absorptiometry and also measured metabolic profiles. RESULTS The age-related trend in bone and muscle coincided in men but not in women. Femoral neck (FN) and total hip (TH) BMD were highly correlated with muscle mass in both genders. However, in women, this correlation was not significant in the lumbar spine (LS). In addition, this positive correlation was stronger in the FN or TH than in the LS and was stronger in men than in women. Subjects with sarcopenia were at a higher risk for osteoporosis in the FN, TH, and LS in men, and in the TH and FN in women. The degree of association between muscle mass and metabolic profiles was relatively very weak. CONCLUSION Bone-muscle relationship was more prominent in men than in women. The gender differences in bone-muscle relationship may be helpful for the development of gender-specific preventive strategies in the elderly, especially in men.
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Affiliation(s)
- J H Huh
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-752, South Korea
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Song MK, Jung I. Comparison of Goodness-of-Fit Tests using Grouping Strategies for Multinomial Logit Regression Model. Korean Journal of Applied Statistics 2013. [DOI: 10.5351/kjas.2013.26.6.889] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Shim CN, Kim HI, Hyung WJ, Noh SH, Song MK, Kang DR, Park JC, Lee H, Shin SK, Lee YC, Lee SK. Self-expanding metal stents or nonstent endoscopic therapy: which is better for anastomotic leaks after total gastrectomy? Surg Endosc 2013; 28:833-40. [PMID: 24114516 DOI: 10.1007/s00464-013-3228-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2013] [Accepted: 09/12/2013] [Indexed: 01/07/2023]
Abstract
BACKGROUND Anastomotic leaks are a life-threatening complication of gastrectomies with high mortality after surgical reintervention. Endoscopic therapy using fibrin glue injection, endoclip, and other devices is an alternative to surgical intervention for anastomotic leaks. Recently, self-expanding metal stents (SEMS) were introduced to treat anastomotic leaks. The purpose of this study was to assess the clinical characteristics and therapeutic outcomes of SEMS and nonstent endoscopic therapy (NSET) for treatment of anastomotic leaks after total gastrectomy with the aim of assisting endoscopists in choosing a treatment method. METHODS Between July 2002 and March 2013, 13 patients treated with SEMS and 14 patients treated with NSET for anastomotic leaks after total gastrectomy were enrolled onto the study. Enrolled patients received 16 SEMS placement sessions and 21 NSET sessions. RESULTS No significant differences in baseline characteristics or clinical characteristics related to leakage were detected in patients with SEMS compared to NSET. The successful sealing rate at the first attempt by SEMS was significantly better than that of NSET (80.0 vs. 28.6 %, P = 0.036), whereas the successful sealing rate after multiple endoscopic treatments was not statistically different (80.0 vs. 64.3 %, P = 0.653). The main reason for reintervention with SEMS was complications and with NSET was nonseal (P = 0.004). Clinical outcomes including length of hospital stay, endoscopic treatment-related mortality, and all-cause mortality were not significantly different between the 2 groups. CONCLUSIONS In terms of efficacy by single effort, SEMS was superior to other methods for treating anastomotic leaks after total gastrectomy. However, complications with SEMS should be considered when choosing an endoscopic treatment method.
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Affiliation(s)
- Choong Nam Shim
- Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of Medicine, 134 Shinchon-dong, Seodaemun-gu, Seoul, 120-752, South Korea,
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Jin YC, Li ZH, Hong ZS, Xu CX, Han JA, Choi SH, Yin JL, Zhang QK, Lee KB, Kang SK, Song MK, Kim YJ, Kang HS, Choi YJ, Lee HG. Conjugated linoleic acid synthesis-related protein proteasome subunit α 5 (PSMA5) is increased by vaccenic acid treatment in goat mammary tissue. J Dairy Sci 2012; 95:4286-97. [PMID: 22818443 DOI: 10.3168/jds.2011-4281] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2011] [Accepted: 03/07/2012] [Indexed: 11/19/2022]
Abstract
This study was conducted to identify proteins associated with the endogenous synthesis of conjugated linoleic acid (CLA) from trans-vaccenic acid (TVA; trans-11 C18:1, a precursor for CLA endogenous synthesis) in mammary tissues. Six lactating goats were divided into 2 groups. One group was given an intravenous bolus injection of TVA (150mg) twice daily over 4 d; the other group received saline injections. Treatment with TVA increased the concentration of cis-9,trans-11 CLA and TVA in goat milk. Additionally, TVA treatment increased the expression of stearoyl-CoA desaturase (SCD) in mammary tissue. Using 2-dimensional gel electrophoresis and electrospray ionization quadrupole time-of-flight mass spectrometry, 3 proteins affected by infusions of TVA were identified. Proteasome (prosome, macropain) subunit α type 5 (PSMA5) was upregulated, whereas peroxiredoxin-1 and translationally controlled tumor protein 1 were downregulated in TVA-treated animals compared with the vehicle-injected controls. Only the effect of TVA on PSMA5 could be confirmed by Western blot analysis. To further explore the regulation of PSMA5 in mammary epithelial cells when TVA is converted into CLA, we used a differentiated bovine mammary epithelial cell line treated with TVA for 6h. Changes in cis-9,trans-11 CLA concentrations and mRNA expression patterns of both SCD and PSMA5 were monitored. The concentration of cis-9,trans-11 CLA increased after TVA treatment. The mRNA expression level of PSMA5 was significantly elevated to 6h, but SCD mRNA expression only increased in 2h after TVA treatment. These results indicate that PSMA5 is highly expressed in goat mammary tissue and bovine mammary epithelial cells when TVA is converted into CLA. Our data suggest that PSMA5 protein is associated with CLA biosynthesis in mammary tissue.
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Affiliation(s)
- Y C Jin
- Department of Animal Science, College of Animal Science and Veterinary Medicine, Jilin University, Changchun 130062, People's Republic of China
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Song MK, Jin GL, Ji BJ, Chang SS, Jeong J, Smith SB, Choi SH. Conjugated linoleic acids content in M.longissimus dorsi of Hanwoo steers fed a concentrate supplemented with soybean oil, sodium bicarbonate-based monensin, fish oil. Meat Sci 2010; 85:210-4. [PMID: 20374887 DOI: 10.1016/j.meatsci.2010.01.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2008] [Revised: 11/03/2009] [Accepted: 01/04/2010] [Indexed: 10/20/2022]
Abstract
We hypothesized that increasing ruminal pH would lead to enrichment of adipose tissue with conjugated linoleic acid (CLA). Twenty-four Korean native (Hanwoo) steers were used to investigate the additive effects of monensin (30ppm, SO-BM) and/or fish oil (0.7%, SO-BMF) in the diets along with soybean oil (7%) and sodium bicarbonate (0.5%, SO-B) on cis-9, trans-11 and trans-10, cis-12 CLAs in adipose tissue. The steers were assigned to randomly four groups of six animals each based on body weight. The control group (CON) was fed a commercial concentrate for the late fattening stage. Supplementation of oil and sodium bicarbonate reduced feed intake and daily gain, and fish oil further decreased feed intake (P<0.001) and daily gain (P<0.087) compared to steers fed other diets. Total CLA and CLA isomers in M.longissimus dorsi were not affected when steers were fed SO-B and SO-BM diets compared with those of steers fed CON and SO-BMF diets. However, total poly unsaturated fatty acids were higher (P=0.03) in steers fed SO than in CON steers.
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Affiliation(s)
- M K Song
- Department of Animal Science, Chungbuk National University, Cheong-Ju 361-763, Republic of Korea
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Song MK, Rosenthal MJ, Song AM, Uyemura K, Yang H, Ament ME, Yamaguchi DT, Cornford EM. Body weight reduction in rats by oral treatment with zinc plus cyclo-(His-Pro). Br J Pharmacol 2009; 158:442-50. [PMID: 19422374 DOI: 10.1111/j.1476-5381.2009.00201.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND AND PURPOSE We have previously shown that treatment with zinc plus cyclo-(His-Pro) (CHP) significantly stimulated synthesis of the insulin degrading enzyme and lowered plasma insulin and blood glucose levels, alongside improving oral glucose tolerance in genetically type 2 diabetic Goto-Kakizaki (G-K) rats and in aged obese Sprague-Dawley (S-D) rats. Thus, we postulated that zinc plus CHP (ZC) treatment might also improve body weight control in these rats. We therefore determined the effects of ZC treatment on body weights in both genetically diabetic, mature G-K rats and non-diabetic, obese S-D rats. EXPERIMENTAL APPROACH G-K rats aged 1.5-10 months and non-diabetic overweight or obese S-D rats aged 6-18 months were treated with 0-6 mg CHP plus 0-10 mg zinc L(-1) drinking water for 2-4 weeks, and changes in weight, serum leptin and adiponectin levels, food and water intakes were measured. KEY RESULTS The optimal dose of CHP (in combination with zinc) to reduce weight and plasma leptin levels and to increase plasma adiponectin levels was close to 0.1 mg kg(-1) day(-1), in either mature G-K rats and aged overweight or obese S-D rats. Food and water intake significantly decreased in ZC treated rats in both aged S-D rats and mature G-K rats, but not in young S-D and G-K rats. CONCLUSIONS AND IMPLICATIONS ZC treatment improved weight control and may be a possible treatment for overweight and obesity.
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Affiliation(s)
- M K Song
- Department of Pediatrics, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA.
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