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Ishida H, Yamaguchi M, Saito SY, Furukawa T, Shannonhouse JL, Kim YS, Ishikawa T. Corrigendum to "Na(+)-dependent inactivation of vascular Na(+)/Ca(2+) exchanger responsible for reduced peripheral blood flow in neuropathic pain model" [Eur. J. Pharmacol. 910 (2021) 174448]. Eur J Pharmacol 2024; 970:176495. [PMID: 38490839 DOI: 10.1016/j.ejphar.2024.176495] [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: 03/17/2024]
Affiliation(s)
- H Ishida
- Department of Pharmacology, School of Pharmaceutical Sciences, University of Shizuka, 52-1 Yada, Suruga Ward, Shizuoka City, Shizuoka, 422-8526, Japan; Department of Oral & Maxillofacial Surgery, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, San Antonio, TX, 78229, USA
| | - M Yamaguchi
- Department of Pharmacology, School of Pharmaceutical Sciences, University of Shizuka, 52-1 Yada, Suruga Ward, Shizuoka City, Shizuoka, 422-8526, Japan
| | - S Y Saito
- Department of Pharmacology, School of Pharmaceutical Sciences, University of Shizuka, 52-1 Yada, Suruga Ward, Shizuoka City, Shizuoka, 422-8526, Japan; Faculty of Veterinary Medicine, Okayama University of Science, 1-3 Ikoinooka, Imabari City, Ehime, 794-8555, Japan
| | - T Furukawa
- Department of Pharmacology, School of Pharmaceutical Sciences, University of Shizuka, 52-1 Yada, Suruga Ward, Shizuoka City, Shizuoka, 422-8526, Japan
| | - J L Shannonhouse
- Department of Oral & Maxillofacial Surgery, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, San Antonio, TX, 78229, USA
| | - Y S Kim
- Department of Oral & Maxillofacial Surgery, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, San Antonio, TX, 78229, USA; Programs in Integrated Biomedical Sciences & Translational Sciences, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, San Antonio, TX, 78229, USA
| | - T Ishikawa
- Department of Pharmacology, School of Pharmaceutical Sciences, University of Shizuka, 52-1 Yada, Suruga Ward, Shizuoka City, Shizuoka, 422-8526, Japan.
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Park S, Bae S, Kim EO, Chang E, Kim MJ, Chong YP, Choi SH, Lee SO, Kim YS, Jung J, Kim SH. The impact of discontinuing single-room isolation of patients with vancomycin-resistant enterococci: a quasi-experimental single-centre study in South Korea. J Hosp Infect 2024; 147:77-82. [PMID: 38492645 DOI: 10.1016/j.jhin.2024.02.025] [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: 01/26/2024] [Revised: 02/27/2024] [Accepted: 02/28/2024] [Indexed: 03/18/2024]
Abstract
OBJECTIVES There is limited data on the effects of discontinuing single-room isolation while maintaining contact precautions, such as the use of gowns and gloves. In April 2021, our hospital ceased single-room isolation for patients with vancomycin-resistant enterococci (VRE) because of single-room unavailability. This study assessed the impact of this policy by examining the incidence of hospital-acquired VRE bloodstream infections (HA-VRE BSI). METHODS This retrospective quasi-experimental study was conducted at a tertiary-care hospital in Seoul, South Korea. Time-series analysis was used to evaluate HA-VRE BSI incidence at the hospital level and in the haematology unit before (phase 1) and after (phase 2) the policy change. RESULTS At the hospital level, HA-VRE BSI incidence level (VRE BSI per 1000 patient-days per month) and trend did not change significantly between phase 1 and phase 2 (coefficient -0.015, 95% confidence interval (CI): -0.053 to 0.023, P=0.45 and 0.000, 95% CI: -0.002 to 0.002, P=0.84, respectively). Similarly, HA-VRE BSI incidence level and trend in the haematology unit (-0.285, 95% CI: -0.618 to 0.048, P=0.09 and -0.018, 95% CI: -0.036 to 0.000, P = 0.054, respectively) did not change significantly across the two phases. CONCLUSIONS Discontinuing single-room isolation of VRE-colonized or infected patients was not associated with an increase in the incidence of VRE BSI at the hospital level or among high-risk patients in the haematology unit. Horizontal intervention for multi-drug-resistant organisms, including measures such as enhanced hand hygiene and environmental cleaning, may be more effective at preventing VRE transmission.
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Affiliation(s)
- S Park
- Office for Infection Control, Asan Medical Center, Seoul, Republic of Korea
| | - S Bae
- Department of Infectious Disease, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - E O Kim
- Office for Infection Control, Asan Medical Center, Seoul, Republic of Korea
| | - E Chang
- Department of Infectious Disease, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - M J Kim
- Department of Infectious Disease, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Y P Chong
- Department of Infectious Disease, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - S-H Choi
- Department of Infectious Disease, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - S-O Lee
- Department of Infectious Disease, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Y S Kim
- Department of Infectious Disease, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - J Jung
- Office for Infection Control, Asan Medical Center, Seoul, Republic of Korea; Department of Infectious Disease, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.
| | - S-H Kim
- Office for Infection Control, Asan Medical Center, Seoul, Republic of Korea; Department of Infectious Disease, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
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Lee CM, Lee S, Kim ES, Kim HB, Park WB, Moon SM, Kim YK, Park KH, Kwak YG, Kim B, Kim YS, Kim CJ, Gil HY, Ahn J, Song KH. Disease burden of bacteraemia with extended-spectrum beta-lactamase-producing and carbapenem-resistant Enterobacterales in Korea. J Hosp Infect 2024; 144:85-93. [PMID: 38072088 DOI: 10.1016/j.jhin.2023.11.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 11/10/2023] [Accepted: 11/15/2023] [Indexed: 01/13/2024]
Abstract
BACKGROUND Despite the significant impact of multi-drug-resistant bacteraemia, especially extended-spectrum beta-lactamase-producing Enterobacterales (ESBL-E) and carbapenem-resistant Enterobacterales (CRE), the burden of disease has not been investigated thoroughly. AIM To evaluate the clinical outcomes and socio-economic burden of ESBL-E and CRE bacteraemia nationwide in the Republic of Korea. METHODS A search was undertaken for all cases of ESBL-E and CRE bacteraemia and matched controls in 10 hospitals in the Republic of Korea over 6 months. Patients with ESBL-E or CRE bacteraemia were classified as the R group, and matched controls with antibiotic-susceptible bacteraemia and without infection were classified as the S and N groups, respectively. Patients' clinical data were collected, and the economic burden was estimated based on medical expenses, loss of productivity and total costs. FINDINGS In total, 795 patients were identified, including 265 patients with ESBL-E or CRE bacteraemia and their matched controls. The mean total length of stay for patients with ESBL-E and CRE in the R group was 1.53 and 1.90 times that of patients in the S group, respectively. The 90-day mortality rates for ESBL-E in the R and S groups were 12.1% and 5.6%, respectively, and the corresponding figures for CRE were 28.6% and 12.0%. There were significant differences in the total costs between the R, S and N groups for both ESBL-E and CRE (ESBL-E: $11,151 vs $8712 vs $6063, P=0.004; CRE: $40,464 vs $8748 vs $7279, P=0.024). CONCLUSION The clinical and economic burden imposed by ESBL-E or CRE bacteraemia was extremely high. These findings suggest that efforts to control resistant bacteraemia are necessary to reduce this burden.
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Affiliation(s)
- C M Lee
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - S Lee
- Department of Internal Medicine, Pusan National University School of Medicine and Medical Research Institute, Pusan National University Hospital, Pusan, South Korea
| | - E S Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, South Korea
| | - H B Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, South Korea
| | - W B Park
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - S M Moon
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, South Korea; Department of Internal Medicine, Hallym University Sacred Heart Hospital, Anyang, South Korea
| | - Y K Kim
- Department of Internal Medicine, Wonju College of Medicine, Yonsei University, Wonju, South Korea
| | - K-H Park
- Department of Infectious Diseases, Chonnam National University Medical School, Gwangju, South Korea
| | - Y G Kwak
- Department of Internal Medicine, Inje University Ilsan Paik Hospital, Goyang, South Korea
| | - B Kim
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, South Korea
| | - Y S Kim
- Division of Infectious Diseases, Chungnam National University School of Medicine, Daejeon, South Korea
| | - C-J Kim
- Department of Internal Medicine, Ewha Womans University College of Medicine, Seoul, South Korea
| | - H-Y Gil
- Real World Evidence Team, Pfizer Pharmaceuticals Korea Ltd, Seoul, South Korea
| | - J Ahn
- Department of Health Convergence, Ewha Womans University, Seoul, South Korea.
| | - K-H Song
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, South Korea.
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Jung JJ, Cheun JH, Kim SY, Koh J, Ryu JM, Yoo TK, Shin HC, Ahn SG, Park S, Lim W, Nam SE, Park MH, Kim KS, Kang T, Lee J, Youn HJ, Kim YS, Yoon CI, Kim HK, Moon HG, Han W, Cho N, Kim MK, Lee HB. Omission of Breast Surgery in Predicted Pathologic Complete Response after Neoadjuvant Systemic Therapy: A Multicenter, Single-Arm, Non-inferiority Trial. J Breast Cancer 2024; 27:61-71. [PMID: 38433091 PMCID: PMC10912576 DOI: 10.4048/jbc.2023.0265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 01/13/2024] [Accepted: 02/06/2024] [Indexed: 03/05/2024] Open
Abstract
PURPOSE Advances in chemotherapeutic and targeted agents have increased pathologic complete response (pCR) rates after neoadjuvant systemic therapy (NST). Vacuum-assisted biopsy (VAB) has been suggested to accurately evaluate pCR. This study aims to confirm the non-inferiority of the 5-year disease-free survival of patients who omitted breast surgery when predicted to have a pCR based on breast magnetic resonance imaging (MRI) and VAB after NST, compared with patients with a pCR who had undergone breast surgery in previous studies. METHODS The Omission of breast surgery for PredicTed pCR patients wIth MRI and vacuum-assisted bIopsy in breaST cancer after neoadjuvant systemic therapy (OPTIMIST) trial is a prospective, multicenter, single-arm, non-inferiority study enrolling in 17 tertiary care hospitals in the Republic of Korea. Eligible patients must have a clip marker placed in the tumor and meet the MRI criteria suggesting complete clinical response (post-NST MRI size ≤ 1 cm and lesion-to-background signal enhancement ratio ≤ 1.6) after NST. Patients will undergo VAB, and breast surgery will be omitted for those with no residual tumor. Axillary surgery can also be omitted if the patient was clinically node-negative before and after NST and met the stringent criteria of MRI size ≤ 0.5 cm. Survival and efficacy outcomes are evaluated over five years. DISCUSSION This study seeks to establish evidence for the safe omission of breast surgery in exceptional responders to NST while minimizing patient burden. The trial will address concerns about potential undertreatment due to false-negative results and recurrence as well as improved patient-reported quality of life issues from the omission of surgery. Successful completion of this trial may reshape clinical practice for certain breast cancer subtypes and lead to a safe and less invasive approach for selected patients. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT05505357. Registered on August 17, 2022. Clinical Research Information Service Identifier: KCT0007638. Registered on July 25, 2022.
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Affiliation(s)
- Ji-Jung Jung
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Jong-Ho Cheun
- Department of Surgery, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, Seoul, Korea
| | - Soo-Yeon Kim
- Department of Radiology, Seoul National University College of Medicine, Seoul, Korea
| | - Jiwon Koh
- Department of Pathology, Seoul National University College of Medicine, Seoul, Korea
- Cancer Research Institute, Seoul National University, Seoul, Korea
| | - Jai Min Ryu
- Division of Breast Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Tae-Kyung Yoo
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Hee-Chul Shin
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
- Department of Surgery, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Sung Gwe Ahn
- Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Seho Park
- Department of Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Woosung Lim
- Department of Surgery, College of Medicine, Ewha Womans University, Seoul, Korea
| | - Sang-Eun Nam
- Department of Surgery, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, Korea
| | - Min Ho Park
- Department of Surgery, Chonnam National University Hwasun Hospital, Chonnam National University Medical School, Hwasun, Korea
| | - Ku Sang Kim
- Department of Breast Surgery, Gospel Hospital, Kosin University College of Medicine, Busan, Korea
| | - Taewoo Kang
- Department of Surgery, Pusan National University, School of Medicine, Busan, Korea
- Busan Cancer Center and Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
| | - Jeeyeon Lee
- Department of Surgery, Kyungpook National University Chilgok Hospital, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Hyun Jo Youn
- Department of Surgery, Jeonbuk National University Medical School, Jeonju, Korea
| | - Yoo Seok Kim
- Department of Surgery, Chosun University College of Medicine, Gwangju, Korea
| | - Chang Ik Yoon
- Division of Breast Surgery, Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hong-Kyu Kim
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
- Biomedical Research Institute, Seoul National University Hospital, Seoul, Korea
| | - Hyeong-Gon Moon
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
- Cancer Research Institute, Seoul National University, Seoul, Korea
- Biomedical Research Institute, Seoul National University Hospital, Seoul, Korea
| | - Wonshik Han
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
- Cancer Research Institute, Seoul National University, Seoul, Korea
- Biomedical Research Institute, Seoul National University Hospital, Seoul, Korea
| | - Nariya Cho
- Department of Radiology, Seoul National University College of Medicine, Seoul, Korea
| | - Min Kyoon Kim
- Department of Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea.
| | - Han-Byoel Lee
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
- Cancer Research Institute, Seoul National University, Seoul, Korea
- Biomedical Research Institute, Seoul National University Hospital, Seoul, Korea.
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Kang M, Song S, Cho HJ, Kim Z, Youn HJ, Cho J, Min JW, Kim YS, Choi SW, Lee JE. Adherence to the American Cancer Society Guidelines on Nutrition and Physical Activity for Cancer Survivors and Biomarkers of Inflammation among Breast Cancer Survivors. Epidemiol Health 2024:e2024026. [PMID: 38317529 DOI: 10.4178/epih.e2024026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Accepted: 01/06/2024] [Indexed: 02/07/2024] Open
Abstract
Objectives This study investigated whether adherence to the overall lifestyle recommendations in the American Cancer Society (ACS) guidelines on nutrition and physical activity for cancer survivors was associated with inflammation in breast cancer survivors. Methods The study included 409 women who had undergone breast cancer surgery at least 1 year before enrollment. A generalized linear model was used to estimate the least square mean and 95% confidence interval of plasma levels of inflammatory markers according to lifestyle factors defined in terms of adherence to the ACS guidelines. Results Higher overall adherence scores were associated with lower levels of high-sensitivity C-reactive protein (hs-CRP) (p for trend=0.0153) and higher levels of adiponectin (p for trend=0.0095). Similar significant associations of hs-CRP (p for trend=0.0040) and adiponectin (p for trend=0.0097) levels were observed with the score for the body mass index (BMI) component of the adherence score. A higher diet component score was associated with a higher adiponectin level (p for trend=0.0198), but there was no significant association for the physical activity component score. Conclusion The present study's findings suggest that maintaining a healthy lifestyle according to the ACS guidelines was associated with beneficial effects on inflammatory marker levels, especially hs-CRP and adiponectin, among breast cancer survivors. Among the 3 components of lifestyle guidelines, the BMI component exhibited the most similar tendency to the overall adherence score in relation to inflammatory indicators. Further prospective and intervention studies are needed to investigate longitudinal associations between lifestyle factors and inflammatory markers among breast cancer survivors.
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Affiliation(s)
- Minji Kang
- Department of Food and Nutrition, Duksung Women's University, Seoul, Korea
| | - Sihan Song
- Department of Food and Nutrition, Seoul National University, Seoul, Korea
| | - Hyun Jeong Cho
- Department of Food and Nutrition, Seoul National University, Seoul, Korea
| | - Zisun Kim
- Department of Surgery, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Hyun Jo Youn
- Department of Surgery, Jeonbuk National University Medical School, Jeonju, Korea
| | - Jihyoung Cho
- Department of Surgery, Keimyung University School of Medicine, Daegu, Korea
| | - Jun Won Min
- Department of Surgery, Dankook University College of Medicine, Cheonan, Korea
| | - Yoo Seok Kim
- Department of Surgery, Chosun University College of Medicine, Gwangju, Korea
| | | | - Jung Eun Lee
- Department of Food and Nutrition, Seoul National University, Seoul, Korea
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Park CB, Kang YN, Jang H, Kim YS, Choi BO, Son SH, Song JH, Choi KH, Lee YK, Sung W, Kim JL. Evaluation of Usefulness of Yeast-Based Biological Phantom and Preliminary Study for Verification of Hypoxic Effect of Flash Radiotherapy. Int J Radiat Oncol Biol Phys 2023; 117:e704. [PMID: 37786063 DOI: 10.1016/j.ijrobp.2023.06.2193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) As a basic hypothesis for the effectiveness of flash radiation therapy, the effect of preserving normal tissue during flash radiation is due to the instantaneous chemical depletion of oxygen. A yeast-based biological phantom was created to verify the hypoxic effect of flash radiation therapy. A study to upgrade the previously developed X-Band LINAC to a flash irradiation mode is in progress, and a preceding study is conducted to evaluate the usefulness of a yeast-based biological phantom manufactured by analyzing the change in oxygen by irradiating a high dose in a general radiation therapy device. MATERIALS/METHODS Freeze-dried yeast sample (Saccharomyces cerevisiae, S288C) is activated and sub-cultured. For mass production of yeast samples, yeast culture medium is prepared by adding yeast colonies to the ypd medium. This study was conducted to verify the hypoxic effect among the biological mechanisms that occur during flash radiation therapy at the basic stage, and the oxygen concentration change during general radiation irradiation was measured in real time using a DO (Dissolved oxygen) meter and fiber optic sensor designed to do that. To prevent scatter, which is a concern during flash irradiation, the fiber form was used, and precise experiments are possible as a non-invasive oxygen concentration measurement method. Based on 10MV of general radiation therapy device, high-dose radiation of 500-10,000 cGy is irradiated to measure real-time oxygen concentration change. RESULTS As a result of irradiation with high-dose (500-10,000 cGy) radiation of general LINAC, it was confirmed that the oxygen concentration of the yeast culture medium decreased by 5.7-63.2%, and the usefulness of the biological phantom fabricated based on the yeast culture medium was evaluated. CONCLUSION Prior to the analysis of oxygen concentration change in yeast cells during X-Band LINAC flash irradiation, a preliminary study was conducted at a high dose in a general LINAC to obtain a significant result of oxygen concentration change and confirm the usefulness of the yeast-based biological phantom. Prior research was conducted and verified as a general irradiation experiment using a yeast-based biological phantom manufactured based on a DO meter and a fiber optic oxygen sensor. After irradiation with high-dose radiation, the oxygen concentration of the yeast culture medium was measured 5 times, and it was confirmed that there was a change in oxygen concentration of 5.7-63.2%, verifying the usefulness and stability of the biological phantom. The usefulness of the yeast-based biological phantom for high doses was confirmed, and it is expected that the usefulness of the biological phantom for flash radiation can be verified by additionally measuring the change in oxygen concentration of the biological phantom according to the high dose rate in the future.
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Affiliation(s)
- C B Park
- Department of Biomedicine & Health Sciences, College of Medicine, The Catholic University of Korea, Seoul, Korea, Republic of (South) Korea
| | - Y N Kang
- Department of Radiation Oncology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea, Republic of (South) Korea
| | - H Jang
- Department of Radiation Oncology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea, Republic of (South) Korea
| | - Y S Kim
- Department of Radiation Oncology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea, Republic of (South) Korea
| | - B O Choi
- Department of Radiation Oncology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea, Republic of (South) Korea
| | - S H Son
- Department of Radiation Oncology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea, Republic of (South) Korea
| | - J H Song
- Department of Radiation Oncology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea, Republic of (South) Korea
| | - K H Choi
- Department of Radiation Oncology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea, Republic of (South) Korea
| | - Y K Lee
- Department of Radiation Oncology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea, Republic of (South) Korea
| | - W Sung
- Department of Biomedical Engineering and Department of Biomedicine and Health Sciences, College of Medicine, The Catholic University of Korea, Seoul, Korea, Republic of (South) Korea
| | - J L Kim
- Electro-Medical Device Research Center, Korea Electrotechnology Research Institute, Ansan, Korea, Republic of (South) Korea
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Kim JY, Koo B, Lim SY, Cha HH, Kim MJ, Chong YP, Choi SH, Lee SO, Kim YS, Shin Y, Kim SH. A non-invasive, sensitive assay for active TB: combined cell-free DNA detection and FluoroSpot assays. Int J Tuberc Lung Dis 2023; 27:790-792. [PMID: 37749833 PMCID: PMC10519393 DOI: 10.5588/ijtld.23.0180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 06/18/2023] [Indexed: 09/27/2023] Open
Affiliation(s)
- J Y Kim
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - B Koo
- Department of Biotechnology, Yonsei University, Seoul, Republic of Korea
| | - S Y Lim
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - H H Cha
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - M J Kim
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - Y P Chong
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - S-H Choi
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - S-O Lee
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - Y S Kim
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - Y Shin
- Department of Biotechnology, Yonsei University, Seoul, Republic of Korea
| | - S-H Kim
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul
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Song JY, Kim BH, Kang MK, Jeong JU, Kim JH, Moon SH, Suh YG, Kim JH, Kim HJ, Kim YS, Park WY, Kim HJ. Definitive Radiotherapy in Patients with Clinical T1N0M0 Esophageal Squamous Cell Carcinoma: A Multicenter Retrospective Study. Int J Radiat Oncol Biol Phys 2023; 117:e340. [PMID: 37785190 DOI: 10.1016/j.ijrobp.2023.06.2400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) In this study, we aimed to assess the failure pattern and survival outcomes and to analyze the optimal treatment field of definitive RT for T1N0M0 esophageal squamous cell carcinoma (ESCC). MATERIALS/METHODS We performed a retrospective analysis in a multi-institutional cohort of patients with histologically confirmed T1N0M0 ESCC. We included patients who underwent RT with definitive aim from 2010 to 2019. Patterns of failure were demonstrated as in-field locoregional, out-field locoregional and distant metastasis. In the survival analysis, freedom from locoregional recurrence and their association with clinicopathologic risk factors were analyzed. We performed a propensity score matching in the cT1b patients to adjust for the heterogeneity of radiation technique, radiation dose and the use of concurrent chemotherapy. RESULTS A total of 168 patients were included with a median follow-up of 34.0 months, and there were 20 cT1a, 94 cT1b and 24 cT1x, (cT1, not otherwise specified) patients. The rates of all and locoregional failure were 26.9% and 23.1% for cT1a and 25.0% and 22.4% for cT1b patients. 10 (10.6%) patients experienced grade ≥ 3 adverse events. Among 116 cT1b patients, 69 patients received elective nodal irradiation (ENI) and 47 patients received involved field irradiation (IFI). After propensity score matching, the 3-year FFLRR rate was 84.5% (95% Confidence Interval, 71.0 - 92.1%). There was no significant difference between the ENI and IFI patients in FFLRR (Log-rank P = 0.831). In the multivariate analysis, the use of concurrent chemotherapy was the only factor marginally associated with FFLRR (Hazard ratio, 0.17; 95% CI, 0.02 - 1.13; P = 0.067). CONCLUSION cT1a patients who cannot receive endoscopic resection, showed similar rates of failure compared with cT1b patients, which questioned the accuracy of the staging and raised the need for through treatment such as chemoradiotherapy. In cT1b patients, IFI using dose of 50 to 60 Gy with concurrent chemotherapy could be a reasonable treatment option.
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Affiliation(s)
- J Y Song
- Department of Radiation Oncology, Seoul National University Hospital, Seoul, Korea, Republic of (South) Korea
| | - B H Kim
- Department of Radiation Oncology, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, Korea, Republic of (South) Korea
| | - M K Kang
- Department of Radiation Oncology, Kyungpook National University Medical Center, Daegu, Korea, Republic of (South) Korea
| | - J U Jeong
- Jeonnam National University Hwasun Hospital, Jeollanam-do, Korea, Republic of (South) Korea
| | - J H Kim
- Department of Radiation Oncology, Asan Medical Center, Seoul, Korea, Republic of (South) Korea
| | - S H Moon
- Proton Therapy Center, National Cancer Center, Goyang-si, Korea, Republic of (South) Korea
| | - Y G Suh
- Proton Therapy Center, National Cancer Center, Goyang-si, Korea, Republic of (South) Korea
| | - J H Kim
- Department of Radiation Oncology, Keimyung University Dongsan Hospital, Daegu, Korea, Republic of (South) Korea
| | - H J Kim
- Inha University Hospital, Inchon, Korea, Republic of (South) Korea
| | - Y S Kim
- Department of Radiation Oncology, Jeju National University School of Medicine, Jeju, Korea, Republic of (South) Korea
| | - W Y Park
- Chungbuk National University and Chungbuk National University Hospital, Cheongju, Korea, Republic of (South) Korea
| | - H J Kim
- Department of Radiation Oncology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea, Republic of (South) Korea
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Kim JY, Park S, Kim EO, Chang E, Bae S, Kim MJ, Chong YP, Choi SH, Lee SO, Kim YS, Jung J, Kim SH. The seasonality of carbapenemase-producing Enterobacterales in South Korea. J Hosp Infect 2023; 140:87-89. [PMID: 37506769 DOI: 10.1016/j.jhin.2023.07.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 07/20/2023] [Accepted: 07/21/2023] [Indexed: 07/30/2023]
Affiliation(s)
- J Y Kim
- Office for Infection Control, Asan Medical Center, Seoul, Republic of Korea
| | - S Park
- Office for Infection Control, Asan Medical Center, Seoul, Republic of Korea
| | - E O Kim
- Office for Infection Control, Asan Medical Center, Seoul, Republic of Korea
| | - E Chang
- Office for Infection Control, Asan Medical Center, Seoul, Republic of Korea
| | - S Bae
- Departments of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - M J Kim
- Departments of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Y P Chong
- Departments of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - S-H Choi
- Departments of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - S-O Lee
- Departments of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Y S Kim
- Departments of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - J Jung
- Office for Infection Control, Asan Medical Center, Seoul, Republic of Korea; Departments of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.
| | - S-H Kim
- Office for Infection Control, Asan Medical Center, Seoul, Republic of Korea; Departments of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
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Alayaaf AS, Kim YS. Thyroid gland injury after blunt neck trauma: a case report. ULUS TRAVMA ACIL CER 2023; 29:834-836. [PMID: 37409919 PMCID: PMC10405037 DOI: 10.14744/tjtes.2023.77567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Accepted: 03/02/2023] [Indexed: 07/07/2023]
Abstract
Soft-tissue injuries are relatively common after blunt neck trauma. Due to neck content, several vital structures can be compromised. Isolated trauma to the thyroid is highly uncommon, and few cases are reported in the literature. A 61-year-old otherwise healthy woman sustained blunt trauma to the left frontal half of the neck caused by seatbelt injury in a motor vehicle accident. She presented with a painful anterior neck swelling associated with dyspnea. Computed tomography showed the left thyroid lobe lacerations with features suggestive of thyroid gland active bleeding. She underwent surgical exploration with left thyroidectomy and recovered un-eventfully. Isolated thyroid gland injury is infrequent and is present in about 1-2% of the cases, and in most reported cases, there is an underlining pathology within the gland. Patients can be present with neck swelling, pain, respiratory distress, and dysphagia. Patients who sustained blunt neck trauma should be assessed and stabilized according to the ATLS® principles. Injury to vital structures should be ruled out first. Although these cases are rare, physicians should consider the possibility of thyroid injury after blunt neck trauma or neck swelling is noted.
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Affiliation(s)
| | - Yoo Seok Kim
- Department of Surgery, Chosun University College of Medicine, Chosun University Hospital, Gwangju-Korea
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Cho HJ, Kang M, Kim Z, Youn HJ, Cho J, Min JW, Kim YS, Lee JE. Abstract 743: Association between physical activity and lipid profile among breast cancer survivors. Cancer Res 2023. [DOI: 10.1158/1538-7445.am2023-743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Abstract
Abstract
Backgrounds/Aims: Unfavorable lipid profiles may be associated with prognosis among breast cancer survivors. We aimed to examine the association between physical activity levels and subclasses of lipoprotein among breast cancer survivors.
Methods: We included a total of 378 women diagnosed with primary breast cancer and survived for ≥6 months since the surgery. Physical activity levels were presented as the metabolic equivalent of task (MET) hours/week from a structured questionnaire. High-throughput proton nuclear magnetic resonance (NMR) metabolomics platform was used to quantify plasma levels of specific lipid biomarkers and particle sizes. The multivariable adjusted least-square means (LS-means) and 95% confidence intervals (CIs) of lipid profile markers across physical activity (quartile) were estimated by using generalized linear models.
Results: We observed inverse associations of physical activity levels with circulating levels of total triglycerides (TG), TG in very low-density lipoprotein (VLDL), and TG in high-density lipoprotein (HDL) among breast cancer survivors. LS-means (95% CIs) for 1st and 4th quartiles of physical activity were 1.07 (0.99-1.17) and 0.96 (0.88-1.04; p for trend=0.048) for total TG (nmol/L), 0.68 (0.62-0.74) and 0.60 (0.54-0.66; p for trend=0.045) for TG in VLDL (nmol/L), and 0.14 (0.13-0.15) and 0.12 (0.11-0.13; p for trend=0.045) for TG in HDL (nmol/L). These associations were limited to breast cancer survivors with stage II or III. We also found a smaller VLDL size with high physical activity among those with stage II or III. Among participants with a BMI of ≥25 kg/m2, we found that high physical activity was associated with decreased levels of TG in VLDL and small VLDL size; according to subsequent quartiles of physical activity, LS-means (95% CIs) were 0.73 (0.62-0.87), 0.88 (0.72-1.08), 0.74 (0.61-0.89), and 0.56 (0.44-0.71) for TG in VLDL (nmol/L), respectively (p for trend=0.047); and 38.67 (38.34-39.00), 38.75 (38.36-39.15), 38.65 (38.28-39.01), and 37.98 (37.52-38.45) for VLDL size (nm), respectively (p for trend=0.024).
Conclusions: We found that high physical activity was associated with lower circulating levels of subclasses of TG and smaller VLDL size among breast cancer survivors with stage II or III or those with a BMI of ≥25 kg/m2. Further prospective or randomized controlled studies are warranted to confirm the significance of physical activity associated with favorable lipid profiles among breast cancer survivors.
Funding Information: This research was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (Ministry of Science and ICT, MSIT) (No. 2014R1A2A2A01007794, 2019R1F1A1061017, and 2021R1F1A1062476) and K-BIO KIURI Center program (NRF2020M3H1A107330413).
Citation Format: Hyun Jeong Cho, Minji Kang, Zisun Kim, Hyun Jo Youn, Jihyoung Cho, Jun Won Min, Yoo Seok Kim, Jung Eun Lee. Association between physical activity and lipid profile among breast cancer survivors [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2023; Part 1 (Regular and Invited Abstracts); 2023 Apr 14-19; Orlando, FL. Philadelphia (PA): AACR; Cancer Res 2023;83(7_Suppl):Abstract nr 743.
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Affiliation(s)
| | - Minji Kang
- 2Research Institute of Human Ecology, Seoul National University, Seoul, Republic of Korea
| | - Zisun Kim
- 3Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea
| | - Hyun Jo Youn
- 4Jeonbuk National University Medical School, Jeonju, Republic of Korea
| | - Jihyoung Cho
- 5Keimyung University School of Medicine, Daegu, Republic of Korea
| | - Jun Won Min
- 6Dankook University College of Medicine, Cheonan, Republic of Korea
| | - Yoo Seok Kim
- 7Chosun University College of Medicine, Gwangju, Republic of Korea
| | - Jung Eun Lee
- 1Seoul National University, Seoul, Republic of Korea
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Cho HJ, Song S, Kim Z, Youn HJ, Cho J, Min JW, Kim YS, Choi SW, Lee JE. Associations of body mass index and weight change with circulating levels of high-sensitivity C-reactive protein, proinflammatory cytokines, and adiponectin among breast cancer survivors. Asia Pac J Clin Oncol 2023; 19:113-125. [PMID: 35590398 DOI: 10.1111/ajco.13779] [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: 10/19/2021] [Revised: 03/15/2022] [Accepted: 03/17/2022] [Indexed: 01/20/2023]
Abstract
AIM This study examined the associations of body mass index (BMI) and weight change with inflammatory markers among breast cancer survivors in Korea. METHODS A total of 495 women were included who had been diagnosed with primary breast cancer and survived for at least 6 months since the surgery. Information on the body weight and height of the participants was collected both at the study enrollment and diagnosis. The plasma levels of inflammatory markers were measured, including high-sensitivity C-reactive protein, interleukin (IL)-6, IL-8, tumor necrosis factor-α, and adiponectin. A summary z-score was calculated by summing up the z-scores of each biomarker. The least-square means and 95% confidence intervals (CIs) were calculated using a generalized linear model and odds ratios (ORs) and 95% CIs for the elevated levels of inflammatory markers with a multivariate logistic regression model. RESULTS Participants with a BMI ≥27.5 kg/m2 at the study enrollment and at diagnosis were significantly associated with elevated summary z-scores compared to those with a BMI < 23 kg/m2 ; the ORs (95% CIs) were 5.42 (2.15-13.71) for current BMI and 3.66 (1.68-7.98) for BMI at diagnosis, respectively. Additionally, a weight loss > 5% since diagnosis was associated with a lower prevalence of high summary z-scores; the OR (95% CI) was .20 (.08-.52) compared to a stable weight. CONCLUSIONS A high BMI at diagnosis and current BMI with a greater degree were associated with unfavorable levels of inflammatory markers among breast cancer survivors. Additionally, weight loss since diagnosis was inversely associated with these markers.
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Affiliation(s)
- Hyun Jeong Cho
- Department of Food and Nutrition, College of Human Ecology, Seoul National University, Seoul, Republic of Korea
| | - Sihan Song
- Department of Food and Nutrition, College of Human Ecology, Seoul National University, Seoul, Republic of Korea
| | - Zisun Kim
- Department of Surgery, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea
| | - Hyun Jo Youn
- Department of Surgery, Jeonbuk National University Medical School, Jeonju, Republic of Korea
| | - Jihyoung Cho
- Department of Surgery, Keimyung University School of Medicine, Daegu, Republic of Korea
| | - Jun Won Min
- Department of Surgery, College of Medicine, Dankook University, Cheonan, Republic of Korea
| | - Yoo Seok Kim
- Department of Surgery, College of Medicine, Chosun University, Gwangju, Republic of Korea
| | - Sang-Woon Choi
- Chaum Life Center, CHA University, Seoul, Republic of Korea.,Department of Nutrition, School of Public Health and Health Sciences, University of Massachusetts Amherst, Amherst, Massachusetts, USA
| | - Jung Eun Lee
- Department of Food and Nutrition, College of Human Ecology, Seoul National University, Seoul, Republic of Korea.,Research Institute of Human Ecology, Seoul National University, Seoul, Republic of Korea
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Baek SY, Lee KH, Kim SB, Gomez H, Vidaurre T, Park YH, Ahn HK, Kim YS, Park IH, Ahn SG, Lee J, Jeong JH, Kim S, Kim HJ. Knowledge, attitudes, and behaviors toward fertility preservation in patients with breast cancer: A cross-sectional survey of physicians. Front Oncol 2023; 13:1109694. [PMID: 36756160 PMCID: PMC9899882 DOI: 10.3389/fonc.2023.1109694] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 01/09/2023] [Indexed: 01/24/2023] Open
Abstract
Background Fertility is an important issue for young women with breast cancer, but studies about physicians' knowledge, attitudes, and practices toward fertility preservation (FP) are largely based on Western populations and do not reflect recent international guidelines for FP. In this international study, we aimed to assess the knowledge, attitudes, and practices of physicians from South Korea, other Asian countries, and Latin America toward FP in young women with breast cancer, and identify the related barriers. Methods The survey was conducted anonymously among physicians from South Korea, other Asian countries, and Latin America involved in breast cancer care between November 2020 and July 2021. Topics included knowledge, attitudes, and perceptions toward FP; practice behaviors; barriers; and participant demographics. We grouped related questions around two main themes-discussion with patients about FP, and consultation and referral to a reproductive endocrinologist. We analyzed the relationships between main questions and other survey items. Results A total of 151 physicians completed the survey. Most participants' overall knowledge about FP was good. More than half of the participants answered that they discussed FP with their patients in most cases, but that personnel to facilitate discussions about FP and the provision of educational materials were limited. A major barrier was time constraints in the clinic (52.6%). Discussion, consultations, and referrals were more likely to be performed by surgeons who primarily treated patients with operable breast cancer (FP discussion odds ratio [OR]: 2.90; 95% confidence interval [CI]: 1.24-6.79; FP consultation and referral OR: 2.98; 95% CI: 1.14-7.74). Participants' knowledge and attitudes about FP were significantly associated with discussion, consultations, and referrals. Conclusion Physicians from South Korea, other Asian countries, and Latin America are knowledgeable about FP and most perform practice behaviors toward FP well. Physicians' knowledge and favorable attitudes are significantly related to discussion with patients, as well as consultation with and referral to reproductive endocrinologists. However, there are also barriers, such as limitations to human resources and materials, suggesting a need for a systematic approach to improve FP for young women with breast cancer.
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Affiliation(s)
- Soo Yeon Baek
- Department of Surgery, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Kyung-Hun Lee
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea,Cancer Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Sung-Bae Kim
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Henry Gomez
- Department of Medical Oncology, Instituto Nacional de Enfermedades Neoplasicas, Lima, Peru
| | - Tatiana Vidaurre
- Department of Medical Oncology, Instituto Nacional de Enfermedades Neoplasicas, Lima, Peru
| | - Yeon Hee Park
- Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Hee Kyung Ahn
- Division of Medical Oncology, Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - Yoo Seok Kim
- Department of Surgery, Chosun University College of Medicine, Chosun University Hospital, Gwangju, Republic of Korea
| | - In Hae Park
- Division of Hematology/Oncology, Department of Internal Medicine, Korea University College of Medicine, Guro Hospital, Seoul, Republic of Korea
| | - Sung Gwe Ahn
- Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jeeyeon Lee
- Department of Surgery, Kyungpook National University Chilgok Hospital, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Jae Ho Jeong
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Seonok Kim
- Department of Clinical Epidemiology and Biostatistics, Asan Medical Center, Seoul, Republic of Korea
| | - Hee Jeong Kim
- Division of Breast Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea,*Correspondence: Hee Jeong Kim,
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Lee YJ, Song S, Kim Z, Youn HJ, Cho J, Min JW, Kim YS, Franke A, Lee JE. Associations of Circulating Levels of Trimethylamine N-oxide, Choline, Carnitine, and Betaine with Inflammatory Markers Among Breast Cancer Survivors. Curr Dev Nutr 2022. [PMCID: PMC9194189 DOI: 10.1093/cdn/nzac067.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Objectives We examined the associations of circulating levels of trimethylamine N-oxide (TMAO) and its precursors (choline, carnitine, and betaine) with inflammatory markers in breast cancer survivors in Korea. Methods A total of 431 women (285 premenopausal breast cancer) aged 30–78 years were included. Least-squares mean (LS-mean)s and 95% confidence interval (CI)s were estimated for plasma levels of high-sensitivity C-reactive protein (hs-CRP), interleukin (IL)-6, IL-8, tumor necrosis factor-α (TNF-α), and adiponectin according to plasma levels of TMAO, choline, carnitine, and betaine, using the generalized linear models. Results Among premenopausal breast cancer survivors, increasing circulating levels of choline were associated with increasing levels of IL-6, IL-8, and TNF-α; LS-means (95% CIs) of the lowest and the highest quartiles were 0.75 (0.56–0.96) and 1.01 (0.80–1.24) pg/mL (p for trend = 0.019) for IL-6, 11.49 (8.19–15.97) and 17.73 (12.96–24.13) pg/mL (p for trend = 0.005) for IL-8, and 9.45 (7.47–11.88) and 11.99 (9.63–14.88) pg/mL (p for trend = 0.021) for TNF-α, respectively. Increasing plasma betaine levels were associated with increasing levels of adiponectin but decreasing levels of hs-CRP and IL-6; LS-means (95% CIs) of the lowest and the highest quartiles were 7.25 (5.65–9.23) and 9.05 (7.10–11.47) μg/mL (p for trend = 0.044) for adiponectin, 0.68 (0.45–0.96) and 0.35 (0.16–0.57) mg/L (p for trend 0.017) for hs-CRP, and 0.98 (0.77–1.21) and 0.75 (0.57–0.97) pg/mL (p for trend = 0.013) for IL-6, respectively. However, plasma levels of TMAO and its precursors were not significantly associated with inflammatory markers in postmenopausal breast cancer survivors. Conclusions In this cross-sectional study of breast cancer survivors, increasing plasma levels of choline were associated with increasing levels of inflammatory markers, but plasma levels of betaine were inversely associated with these markers among premenopausal breast cancer survivors. Funding Sources This work was supported by the National Research Foundation of Korea (NRF) grants funded by the Korea Government (Ministry of Science and ICT) (No. 2014R1A2A2A01007794, 2019R1F1A1061017, and 2021R1F1A1062476).
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Affiliation(s)
- Yeon Jin Lee
- Seoul National University, Department of Food and Nutrition, College of Human Ecology
| | - Sihan Song
- Seoul National University, Department of Food and Nutrition, College of Human Ecology
| | - Zisun Kim
- Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Department of Surgery
| | - Hyun Jo Youn
- Jeonbuk National University Medical School, Department of Surgery
| | - Jihyoung Cho
- Keimyung University School of Medicine, Department of Surgery
| | - Jun Won Min
- Dankook University College of Medicine, Department of Surgery
| | - Yoo Seok Kim
- Chosun University College of Medicine, Department of Surgery
| | | | - Jung Eun Lee
- Seoul National University, Department of Food and Nutrition, College of Human Ecology
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Bae SY, Lee J, Lee JS, Yoon JS, Kim KS, Kim YS, Kim Z, Min JW, Shim EJ, Lee I, Lee MH, Park S. Prognosis of pregnancy after breast cancer diagnosis according to the type of treatment: A population-based study in Korea by the SMARTSHIP group. Breast 2022; 63:46-53. [PMID: 35299034 PMCID: PMC8927839 DOI: 10.1016/j.breast.2022.03.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 03/09/2022] [Accepted: 03/10/2022] [Indexed: 01/07/2023] Open
Abstract
Backgrounds In this study, we evaluated the incidence and outcomes of pregnancy after breast cancer was diagnosed in women of childbearing age. Additionally, we evaluated the prognosis of patients who became pregnant after breast cancer, according to the treatment. Methods This was a retrospective cohort study of women aged 20–45 years who were surgically treated for breast cancer between 2004 and 2014 using the Korean National Health Insurance database. The patients were classified into six groups according to the treatment. Propensity score matching was applied to the cohort to analyze the risk of breast cancer-associated mortality after pregnancy and childbirth. Results Of the 45,765 patients who had been newly diagnosed with breast cancer, 1826 (4%) became pregnant after breast cancer diagnosis. Among the pregnant group, the HR of the risk of death was 0.15 (95% CI, 0.06 to 0.36) for patients who became pregnant ≥49 months after the diagnosis. In patients who received endocrine therapy and chemotherapy, the pregnant group had better prognosis than the non-pregnant group. There was no significant difference between the pregnant group and the non-pregnant group in patients who received chemotherapy and trastuzumab with or without endocrine therapy. Conclusion The risk of death was low in women who became pregnant ≥49 months after the diagnosis of breast cancer. The prognosis of pregnant women was non-inferior to that of non-pregnant women, even in women who received trastuzumab. These findings provide reassurance to patients with HER2-positive cancer who are considering future pregnancy. The risk of death was low in women who became pregnant ≥49 months after the diagnosis of breast cancer. In patients who received endocrine therapy and chemotherapy, the pregnant group had better prognosis than the non-pregnant group. The prognosis of pregnant women was non-inferior to that of non-pregnant women, even in women who received trastuzumab.
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Affiliation(s)
- Soo Youn Bae
- Department of Surgery, The Catholic University of Korea Seoul St. Mary's Hospital, Republic of Korea
| | - Jihyoun Lee
- Department of Surgery, Soonchunhyang University Seoul Hospital, Seoul, Republic of Korea
| | - Ji Sung Lee
- Clinical Research Center, Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Jae Sun Yoon
- Korea University, Department of Biostatistics, Seoul, South Korea
| | - Ku Sang Kim
- Department of Surgery, Kosin University Gospel Hospital, Busan, Republic of Korea
| | - Yoo Seok Kim
- Department of Surgery, Chosun University College of Medicine, Gwangju, Republic of Korea
| | - Zisun Kim
- Department of Surgery, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea
| | - Jun Won Min
- Department of Surgery, Dankook University College of Medicine, Cheonan, Republic of Korea
| | - Eun-Jung Shim
- Department of Psychology, Pusan National University, Busan, Republic of Korea
| | - Ilkyun Lee
- Department of Surgery, Catholic Kwandong University International St. Mary's Hospital, Incheon, Republic of Korea
| | - Min Hyuk Lee
- Department of Surgery, Soonchunhyang University Seoul Hospital, Seoul, Republic of Korea
| | - Sungmin Park
- Department of Surgery, Chungbuk National University Hospital, College of Medicine, Chungbuk National University, Cheongju-si, Republic of Korea.
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Kim NA, Kim BG, Lee J, Chung HT, Kwon HR, Kim YS, Choi JB, Song JH. Response After Repeated Ketamine Injections in a Rat Model of Neuropathic Pain. Physiol Res 2022; 71:297-303. [PMID: 35275700 PMCID: PMC9150560 DOI: 10.33549/physiolres.934841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 01/25/2022] [Indexed: 11/25/2022] Open
Abstract
Ketamine, an N-methyl-D-aspartate antagonist, reduces pain by decreasing central sensitization and pain windup. However, chronic ketamine use can cause tolerance, dependency, impaired consciousness, urinary symptoms, and abdominal pain. This study aimed to investigate the effects of repeated ketamine injections and ketamine readministration after discontinuation in a rat model of neuropathic pain. To induce neuropathic pain, partial sciatic nerve ligation (PSNL) was performed in 15 male Wistar rats, and these animals were divided into three groups: PSNL (control), PSNL + ketamine 5 mg/kg (K5), and PSNL + ketamine 10 mg/kg (K10; n=5 each). Ketamine was injected intraperitoneally daily for 4 weeks, discontinued for 2 weeks, and then readministered for 1 week. Following PSNL, the mechanical withdrawal threshold was determined weekly using the Von Frey. The K10 group showed a significant increase in the mechanical withdrawal threshold, presented here as the target force (in g), at 21 and 28 days compared to the time point before ketamine injection (mean±SE, 276.0±24.0 vs. 21.6±2.7 and 300.0±0.0 vs. 21.6±2.7, respectively; P<0.01) and at 14, 21, and 28 days compared to the control group (108.2±51.2 vs. 2.7±1.3, 276.0±24.0 vs. 2.5±1.5, and 300.0±0.0 vs. 4.0±0.0, respectively; P<0.05). However, in the K10 group, the ketamine effects decreased significantly at 7 days after readministration compared to those after 28 days of repeated injections (P<0.05). In the K10 group, repeated ketamine injections showed a significant increase in antinociceptive effect for >2 weeks, but this ketamine effect decreased after drug readministration.
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Affiliation(s)
- N A Kim
- Department of Anesthesiology and Pain Medicine, Inha University Hospital, Inha University School of Medicine, Incheon, South Korea.
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Cho MJ, Kim YJ, Kim MJ, Kim YS, Park E, Choi KH, Kang JY, Kim HO, Koong MK, Kim YS, Yoon TK, Ko JJ, Lee JH. P–205 Epothilone D as an actin cytoskeleton stabilizer improved mitochondria bioenergenesis and blastocyst formation of mouse preimplantation embryo. Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Study question
What is primary factor of bioenergetics product activity between microtubule instability and the functional activity of mitochondria in embryo?
Summary answer
The actin cytoskeleton instability is presumably the primary cause for the bioenergenesis of mitochondrial function to the preimplantation embryo development.
What is known already
Mitochondria are cellular organelles dynamically moving and morphological changes. It provides for homeostatic energy to the cell. The dynamic property of the mitochondria is associated with the microtubule network in the cell. However, the stability of the microtubule was clearly identified for preimplantation embryo development.
Study design, size, duration
This study is designed to assess the ATP productivity of the mitochondria, and specifically to observe what its primary factor is in terms of providing microtubule stability in mammalian cells. Additionally, we investigated the relationship between blastocyst formation and actin cytoskeleton stabilization by EpD with 2-cell mice.
Participants/materials, setting, methods
We prepared the microtubule stability regulation model with the HEK293 cell line by using the microtubule stabilizer as an Epothilone D (EpD). Then we analyzed the metabolic activity of the cells through oxidative phosphorylation (OXP) ratios analysis. Also, we performed confocal live imaging to observe mitochondria morphology depending on the cells’ microtubule. Next, we treated EpD to 2-cell culture media for the analysis of blastocyst development ratios.
Main results and the role of chance
EpD significantly increased fusion form. Also, EpD enhance bioenergy ratios like OXP in the mitochondria and functional activity related marker, like mTOR compared with the control. These results suggest that microtubule stabilization enhances mitochondrial metabolism by increasing oxygen consumption. Also, EpD in 2-cell culture media led to a significant increase in the speed of development and 50% higher hatched out blastocyst formation ratios compared to the control group.
Limitations, reasons for caution
This study had limited animal experiments. For the next study, we are planning with an aim to improve the quality and development ratios of human embryos by EpD.
Wider implications of the findings: Microtubule stabilizer has a possibility to recover the mitochondria’s functional activity in the preimplantation embryo development. Mitochondrial functional activity along the actin cytoskeleton may play a pivotal role in determining the embryo quality and development ratios for archive pregnancy.
Trial registration number
non-clinical trials
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Affiliation(s)
- M J Cho
- CHA University, Biomedical Sciences, Seoul, Korea- South
| | - Y J Kim
- CHA Medical Group, Reproductive and Molecular Medicine, Seoul, Korea- South
| | - M J Kim
- CHA Fertility Center Seoul Station, Clinic, Seoul, Korea- South
| | - Y S Kim
- CHA Fertility Center Seoul Station, Clinic, Seoul, Korea- South
| | - E Park
- CHA Fertility Center Seoul Station, Embryology lab, Seoul, Korea- South
| | - K H Choi
- CHA Fertility Center Seoul Station, Embryology lab, Seoul, Korea- South
| | - J Y Kang
- CHA Fertility Center Seoul Station, Embryology lab, Seoul, Korea- South
| | - H O Kim
- CHA Fertility Center Seoul Station, Clinic, Seoul, Korea- South
| | - M K Koong
- CHA Fertility Center Seoul Station, Clinic, Seoul, Korea- South
| | - Y S Kim
- CHA Fertility Center Seoul Station, Clinic, Seoul, Korea- South
| | - T K Yoon
- CHA Fertility Center Seoul Station, Clinic, Seoul, Korea- South
| | - J J Ko
- CHA University, Biomedical Sciences, Seoul, Korea- South
| | - J H Lee
- CHA fertility seoul center seoul sequare 3floor, Reproductive and Molecular Medicine., Seoul, Korea- South
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18
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Choi KH, Kim YJ, Kang KY, Park EA, Kim YS, Kim MJ, Kim HO, Koong MK, Kim YS, Yoon TK, Ko JJ, Lee JH. P–657 Prostaglandin D2 is correlated with follicles development and a reliable marker of ovarian reserve of poor ovarian responder patients. Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Study question
Is the prostaglandin D2 (PGD2) associated with growing follicles and ovarian reserve of poor ovarian responders?
Summary answer
PGD2 is correlated with ovarian stimulation activity and follicle growth. Especially, poor ovarian responders show a significant decrease in the level of follicular fluid.
What is known already
Prostaglandins (PGs) are involved in the female reproductive process, mainly ovulation, fertilization, and implantation.
Study design, size, duration
We investigated the PGD2 level in the follicular fluid of poor ovarian responders. The collection of human follicular fluid was approved by the Institutional Research and Ethical Committees of CHA University (approval number: 1044308–201611-BR–027–04) from January to December 2019. Follicular fluid was collected from patients with normal ovarian response and patients with POR.
Participants/materials, setting, methods
We studied whether prostaglandin has related to POR in the clinical key factor by measuring human follicular fluid. Follicular fluid was collected from patients with normal ovarian response and patients with POR. The concentration of PGD2 in follicular fluid was determined with ELISA kits following the manufacturer’s protocol.
Main results and the role of chance
We analyzed the level of PGD2 in the follicular fluid of patients with normal ovarian response and patients with POR using an ELISA. The PGD2 concentration was significantly lower in the follicular fluid of patients with POR than in the follicular fluid of young and old patients with normal ovarian response.
Limitations, reasons for caution
This study has an identification of biomarker of the clinical samples as POR criteria patients. Therefore, further investigations aimed at specific recovery of low PGD2 metabolic activity in the CCs during control ovarian stimulation.
Wider implications of the findings: Until now there is no specific biomarker of POR. AMH is just an ovary reserve marker for an indication of ovary function. PGD2 is one of the metabolites in steroid metabolism in the ovary. Therefore, we can find some cure through further study for improved PGD2 production to POR patients.
Trial registration number
none
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Affiliation(s)
- K H Choi
- CHA Fertility Center Seoul Station, Embryology Lab, Seoul, Korea- South
| | - Y J Kim
- CHA Medical Group, Advanced Research Division of Reproductive Medicine, Seoul, Korea- South
| | - K Y Kang
- CHA Fertility Center Seoul Station, Embryology Lab, Seoul, Korea- South
| | - E A Park
- CHA Fertility Center Seoul Station, Embryology Lab, Seoul, Korea- South
| | - Y S Kim
- CHA Fertility Center Seoul Station, IVF clinic, Seoul, Korea- South
| | - M J Kim
- CHA Fertility Center Seoul Station, IVF clinic, Seoul, Korea- South
| | - H O Kim
- CHA Fertility Center Seoul Station, IVF clinic, Seoul, Korea- South
| | - M K Koong
- CHA Fertility Center Seoul Station, IVF clinic, Seoul, Korea- South
| | - Y S Kim
- CHA Fertility Center Seoul Station, IVF clinic, Seoul, Korea- South
| | - T K Yoon
- CHA Fertility Center Seoul Station, IVF clinic, Seoul, Korea- South
| | - J J Ko
- CHA University, Biomedical Science, Pocheon-si, Korea- South
| | - J H Lee
- CHA Fertility Center Seoul Station, Embryology Lab, Seoul, Korea- South
- CHA University, Biomedical Science, Pocheon-si, Korea- South
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19
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Kim YJ, Choi KH, Kang KY, Park EA, Kim YS, Kim MJ, Kim HO, Koong MK, Kim YS, Yoon TK, Ko JJ, Lee JH. P–658 Lovastatin promotes the expression of LDL receptor and enhances E2 production in the cumulus cells. Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Study question
Lovastatin enhanced E2 productive ratios in the cumulus cells through promoted expression of Low-density lipoprotein receptor (LDLR).
Summary answer
Lovastatin up-regulated gene expression of LDLR in the CCs. And the high expression of LDLR promoted E2 productive ratios from CCs.
What is known already
We already reported that the up-regulation of LDLR correlated with clinical pregnancy. Therefore, we found lovastatin as an up-regulator of LDLR expression of clinical pregnancy.
Study design, size, duration
This is an expended study of LDLR to enhance steroidogenesis regarding the effect of lovastatin in the CCs. The collection of human cumulus cells was approved by the Institutional Research and Ethical Committees of CHA University (approval number: 1044308–201611-BR–027–04) from January to December 2019. The CCs were collected from 12 patients with normal ovarian response after oocyte denudation for ICSI.
Participants/materials, setting, methods
We studied whether lovastatin has up-regulated LDLR expression in human CCs. Cumulus cells were collected from patients with young (∼ 36) and old aged patients (37 ∼). After culturing human CCs, they were treated lovastatin for one day. The concentration of E2 in culture medium was measured using Chemiluminescence immunoassay. The mRNA isolated from CCs was analyzed gene expression level through real time-PCR.
Main results and the role of chance
The concentration of E2 was significantly increased in the culture medium treated with lovastatin. The CCs treated with lovastatin increased the expression of LDLR and StAR which are components of the steroidogenesis pathway.
Limitations, reasons for caution
We have found that the role of lovastatin promotes the E2 production by increasing the ldlr gene of CCs. Therefore, further investigations aimed at lovastatin effect on human oocytes embryo whether enhanced quality of oocytes or not.
Wider implications of the findings: Previous data show that high activation of LDLR and StAR was associated with embryo quality and clinical pregnancy in infertile women. Our data suggest that lovastatin is stimulated LDLR expression to enhanced pregnancy ratios of IVF patients.
Trial registration number
none
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Affiliation(s)
- Y J Kim
- CHA Medical Group, Advanced Research Division of Reproductive Medicine, Seoul, Korea- South
| | - K H Choi
- CHA Fertility Center Seoul Station, Embryology Lab, Seoul, Korea- South
| | - K Y Kang
- CHA Fertility Center Seoul Station, Embryology Lab, Seoul, Korea- South
| | - E A Park
- CHA Fertility Center Seoul Station, Embryology Lab, Seoul, Korea- South
| | - Y S Kim
- CHA Fertility Center Seoul Station, IVF clinic, Seoul, Korea- South
| | - M J Kim
- CHA Fertility Center Seoul Station, IVF clinic, Seoul, Korea- South
| | - H O Kim
- CHA Fertility Center Seoul Station, IVF clinic, Seoul, Korea- South
| | - M K Koong
- CHA Fertility Center Seoul Station, IVF clinic, Seoul, Korea- South
| | - Y S Kim
- CHA Fertility Center Seoul Station, IVF clinic, Seoul, Korea- South
| | - T K Yoon
- CHA Fertility Center Seoul Station, IVF clinic, Seoul, Korea- South
| | - J J Ko
- CHA University, Biomedical Science, Pocheon-si, Korea- South
| | - J H Lee
- CHA Fertility Center Seoul Station, Embryology Lab, Seoul, Korea- South
- CHA University, Biomedical Science, Pocheon-si, Korea- South
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20
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Seol HY, Kim YS, Kim SJ. Diagnostic test accuracy of 18F-FDG PET/CT for prediction of programmed death ligand 1 (PD-L1) expression in solid tumours: a meta-analysis. Clin Radiol 2021; 76:863.e19-863.e25. [PMID: 34261597 DOI: 10.1016/j.crad.2021.06.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 06/16/2021] [Indexed: 10/20/2022]
Abstract
AIM To investigate the predictive value of integrated 2-[18F]-fluoro-2-deoxy-d-glucose (18F-FDG) positron-emission tomography/computed tomography (PET/CT) for the prediction of programmed death ligand 1 (PD-L1) expression in solid tumours via a systematic review and meta-analysis. MATERIALS AND METHODS The PubMed, Cochrane, and EMBASE databases, from the earliest available date of indexing through 31 October 2020, were searched for studies evaluating the diagnostic performance of 18F-FDG PET/CT for prediction of PD-L1 expression in solid tumours other than lung cancer. RESULTS Across seven studies (473 patients), the pooled sensitivity for 18F-FDG PET/CT was 0.75 (95% confidence interval [CI]: 0.65-0.82) without heterogeneity (I2 = 47.2, p=0.08) and a pooled specificity of 0.73 (95% CI: 0.64-0.81) with heterogeneity (I2 = 53.8, p=0.04). Likelihood ratio (LR) syntheses gave an overall positive likelihood ratio (LR+) of 2.8 (95% CI: 2.1-3.7) and negative likelihood ratio (LR-) of 0.35 (95% CI: 0.26-0.47). The pooled diagnostic odds ratio (DOR) was 8 (95% CI: 5-13). Hierarchical summary receiver operating characteristic (ROC) curve and indicates that the area under the curve was 0.80 (95% CI: 0.77-0.84). CONCLUSION The current meta-analysis showed a moderate sensitivity and specificity of 18F-FDG PET/CT for the prediction of PD-L1 expression in solid tumours. At present, the literature regarding the use of 18F-FDG PET/CT for the prediction of PD-L1 expression in solid tumours still limited; thus, further large multicentre studies would be necessary to substantiate the diagnostic accuracy of 18F-FDG PET/CT for prediction of PD-L1 expression in solid tumours.
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Affiliation(s)
- H Y Seol
- Department of Internal Medicine, Pusan National University Yangsan Hospital, Yangsan, 50612, Republic of Korea
| | - Y S Kim
- Department of Internal Medicine, Pusan National University Yangsan Hospital, Yangsan, 50612, Republic of Korea
| | - S-J Kim
- Department of Nuclear Medicine, College of Medicine, Pusan National University, Yangsan, 50612, Republic of Korea; Department of Nuclear Medicine, Pusan National University Yangsan Hospital, Yangsan, 50612, Republic of Korea; BioMedical Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, 50612, Republic of Korea.
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21
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Gisina AM, Kim YS, Yarygin KN, Lupatov AY. [Identification of the side population associated with ATP-binding cassette transporters activity using imaging flow cytometry]. Biomed Khim 2021; 67:137-143. [PMID: 33860770 DOI: 10.18097/pbmc20216702137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
DyeCycle Violet efflux, caused by ATP-binding cassette transporters activity, was analyzed in human colorectal adenocarcinoma cell lines SW480, HT-29, Caco-2 by neans of FACSAria III flow cytometer and ImageStreamX Mk II imaging flow cytometer. Along with similarity of cytometry data obtained on the two instruments, the use of imaging flow cytometry made it possible to characterize the morphology of side population cells, as well as morphology of other cell populations differing in the degree of dye accumulation. The population of cells, which are smaller than the side population cells and practically do not take the dye, is of the special interest. Probably, this population may contribute to the tumor resistance to chemotherapy.
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Affiliation(s)
- A M Gisina
- Institute of Biomedical Chemistry, Moscow, Russia
| | - Y S Kim
- Institute of Biomedical Chemistry, Moscow, Russia
| | - K N Yarygin
- Institute of Biomedical Chemistry, Moscow, Russia
| | - A Yu Lupatov
- Institute of Biomedical Chemistry, Moscow, Russia
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22
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Kim DK, Lim HS, Eun KM, Seo Y, Kim JK, Kim YS, Kim MK, Jin S, Han SC, Kim DW. Subepithelial neutrophil infiltration as a predictor of the surgical outcome of chronic rhinosinusitis with nasal polyps. Rhinology 2021; 59:173-180. [PMID: 33129200 DOI: 10.4193/rhin20.373] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Neutrophils present as major inflammatory cells in refractory chronic rhinosinusitis with nasal polyps (CRSwNP), regardless of the endotype. However, their role in the pathophysiology of CRSwNP remains poorly understood. We investigated factors predicting the surgical outcomes of CRSwNP patients with focus on neutrophilic localization. METHODS We employed machine-learning methods such as the decision tree and random forest models to predict the surgical outcomes of CRSwNP. Immunofluorescence analysis was conducted to detect human neutrophil elastase (HNE), Bcl-2, and Ki-67 in NP tissues. We counted the immunofluorescence-positive cells and divided them into three groups based on the infiltrated area, namely, epithelial, subepithelial, and perivascular groups. RESULTS On machine learning, the decision tree algorithm demonstrated that the number of subepithelial HNE-positive cells, Lund-Mackay (LM) scores, and endotype (eosinophilic or non-eosinophilic) were the most important predictors of surgical outcomes in CRSwNP patients. Additionally, the random forest algorithm showed that, after ranking the mean decrease in the Gini index or the accuracy of each factor, the top three ranking factors associated with surgical outcomes were the LM score, age, and number of subepithelial HNE-positive cells. In terms of cellular proliferation, immunofluorescence analysis revealed that Ki-67/HNE-double positive and Bcl-2/HNE-double positive cells were significantly increased in the subepithelial area in refractory CRSwNP. CONCLUSION Our machine-learning approach and immunofluorescence analysis demonstrated that subepithelial neutrophils in NP tissues had a high expression of Ki-67 and could serve as a cellular biomarker for predicting surgical outcomes in CRSwNP patients.
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Affiliation(s)
- D-K Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, Chuncheon Sacred Heart Hospital and Institute of New Frontier Research, Hallym University College of Medicine, Chuncheon, Republic of Korea; Division of Big Data and Artificial Intelligence, Hallym University College of Medicine, Chuncheon, Republic of Korea
| | - H-S Lim
- Department of Otorhinolaryngology-Head and Neck Surgery, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - K M Eun
- Department of Otorhinolaryngology-Head and Neck Surgery, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Y Seo
- Department of Otorhinolaryngology-Head and Neck Surgery, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - J K Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Y S Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - M-K Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - S Jin
- Department of Otorhinolaryngology-Head and Neck Surgery, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - S C Han
- Department of Otorhinolaryngology-Head and Neck Surgery, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - D W Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Republic of Korea
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23
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Kim SH, Kim YS, Kim S, Jung KT. Dexmedetomidine decreased the post-thyroidectomy bleeding by reducing cough and emergence agitation - a randomized, double-blind, controlled study. BMC Anesthesiol 2021; 21:113. [PMID: 33845761 PMCID: PMC8040200 DOI: 10.1186/s12871-021-01325-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 03/30/2021] [Indexed: 12/26/2022] Open
Abstract
Background Bleeding after thyroidectomy occurs due to violent coughing during emergence. Dexmedetomidine is helpful for the smooth emergence and suppression of cough. The purpose of the present study was to compare the effects of dexmedetomidine on postoperative bleeding after thyroidectomy. Methods Randomized, double-blind, controlled trials were conducted in female patients (ASA I–II, aged 20 to 60 years). The patients were randomly allocated into two groups. Approximately 15 min before the end of the surgery, dexmedetomidine was administered (0.6 µg/kg/h) without a loading dose in group D (n = 69), and normal saline was administered in group S (n = 70) at the same infusion rate. Hemodynamic data, coughing reflex, extubation time, Ramsay sedation scale (RSS), and recovery time were assessed during the administration of the study drugs and recovery from anesthesia. The amount of postoperative hemorrhage was measured for 3 days. Results Data from a total of 139 patients were analyzed. The incidence of severe cough was significantly lower in group D than in group S (4.3 % vs. 11.5 %, P = 0.022). The emergence agitation in the postanesthetic care unit was significantly lower in group D than in group S (P = 0.01). Postoperative bleeding was significantly lower in group D than in group S until the second postoperative day (P = 0.015). Conclusions Dexmedetomidine can be helpful in decreasing bleeding after thyroidectomy by reducing coughing and emergence agitation. Trial registration This study was registered at http://clinicaltrials.gov (registration number NCT02412150, 09/04/2015).
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Affiliation(s)
- Sang Hun Kim
- Department of Anesthesiology and Pain Medicine, Chosun University Hospital, 365 Pilmun-dearo, Donggu, 61453, Gwangju, Korea.,Department of Anesthesiology and Pain Medicine, College of Medicine and Medical School, Chosun University, Gwangju, Korea
| | - Yoo Seok Kim
- Department of Surgery, Chosun University College of Medicine, Chosun University Hospital, Gwangju, Korea
| | - Seongcheol Kim
- Department of Anesthesiology and Pain Medicine, Chosun University Hospital, 365 Pilmun-dearo, Donggu, 61453, Gwangju, Korea
| | - Ki Tae Jung
- Department of Anesthesiology and Pain Medicine, Chosun University Hospital, 365 Pilmun-dearo, Donggu, 61453, Gwangju, Korea. .,Department of Anesthesiology and Pain Medicine, College of Medicine and Medical School, Chosun University, Gwangju, Korea.
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24
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Kim SH, Jung S, Seok B, Kim YS, Park H, Otsu T, Kobayashi Y, Kim C, Ishida Y. A compact and stable incidence-plane-rotating second harmonics detector. Rev Sci Instrum 2021; 92:043905. [PMID: 34243408 DOI: 10.1063/5.0047337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 04/05/2021] [Indexed: 06/13/2023]
Abstract
We describe a compact and stable setup for detecting the optical second harmonics, in which the incident plane rotates with respect to the sample. The setup is composed of rotating Fresnel rhomb optics and a femtosecond ytterbium-doped fiber laser source operating at the repetition frequency of 10 MHz. The setup including the laser source occupies an area of 1 m2 and is stable so that the intensity fluctuation of the laser harmonics can be less than 0.2% for 4 h. We present the isotropic harmonic signal of a gold mirror of 0.5 pW and demonstrate the integrity and sensitivity of the setup. We also show the polarization-dependent six-fold pattern of the harmonics of a few-layer WSe2, from which we infer the degree of local-field effects. Finally, we describe the extensibility of the setup to investigate the samples in various conditions such as cryogenic, strained, ultrafast non-equilibrium, and high magnetic fields.
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Affiliation(s)
- S H Kim
- Center for Correlated Electron Systems, Institute for Basic Science, Seoul 08826, Republic of Korea
| | - S Jung
- Center for Correlated Electron Systems, Institute for Basic Science, Seoul 08826, Republic of Korea
| | - B Seok
- Center for Correlated Electron Systems, Institute for Basic Science, Seoul 08826, Republic of Korea
| | - Y S Kim
- Center for Correlated Electron Systems, Institute for Basic Science, Seoul 08826, Republic of Korea
| | - H Park
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Republic of Korea
| | - T Otsu
- ISSP, The University of Tokyo, 5-1-5 Kashiwa-no-ha, Kashiwa, Chiba 277-8581, Japan
| | - Y Kobayashi
- ISSP, The University of Tokyo, 5-1-5 Kashiwa-no-ha, Kashiwa, Chiba 277-8581, Japan
| | - C Kim
- Center for Correlated Electron Systems, Institute for Basic Science, Seoul 08826, Republic of Korea
| | - Y Ishida
- Center for Correlated Electron Systems, Institute for Basic Science, Seoul 08826, Republic of Korea
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25
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Juhn JW, Lee KC, Lee TG, Wi HM, Kim YS, Hahn SH, Nam YU. Multi-chord IR-visible two-color interferometer on KSTAR. Rev Sci Instrum 2021; 92:043559. [PMID: 34243393 DOI: 10.1063/5.0043811] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 03/29/2021] [Indexed: 06/13/2023]
Abstract
Major parts of an IR-visible two-color interferometer (TCI) on KSTAR have been upgraded for the multi-chord operation: (1) a diode-pumped-solid-state (DPSS) laser (660 nm) replacing the former HeNe laser (633 nm), (2) vacuum-compatible vibration isolator with titanium retro-reflectors, and (3) full digital phase comparator for multi-chord real-time density signals. The commercial compact DPSS laser suits the multiple chord configuration with its strong beam power (500 mW) and long coherent length (>100 m). Ti retro-reflectors are mounted on vacuum-compatible vibration isolators. The isolators are essential for the visible beams to avoid any fringe skips due to their short wavelength, considering the speed of the mechanical vibration (up to hundreds of μm). Field-programmable-gate-array (FPGA) modules count the entire fringes fast enough with a signal output rate up to 1.25 MHz, solving the fringe skip issues. The FPGA module enables the full digital processing of the phase comparator with a CORDIC algorithm after the sampling rate of 160 MS/s for the 40 MHz intermediate frequency of each beam. The full digital signals are transferred to the main plasma control system in real-time. Stable single-input-single-output operation of the KSTAR density control was demonstrated with the TCI. The real-time density profile control is also promising in the near future, with multiple actuators such as pellets and gas puffings.
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Affiliation(s)
- June-Woo Juhn
- Korea Institute of Fusion Energy, Daejeon 34133, Republic of Korea
| | - K C Lee
- Korea Institute of Fusion Energy, Daejeon 34133, Republic of Korea
| | - T G Lee
- Korea Institute of Fusion Energy, Daejeon 34133, Republic of Korea
| | - H M Wi
- Korea Institute of Fusion Energy, Daejeon 34133, Republic of Korea
| | - Y S Kim
- Korea Institute of Fusion Energy, Daejeon 34133, Republic of Korea
| | - S H Hahn
- Korea Institute of Fusion Energy, Daejeon 34133, Republic of Korea
| | - Y U Nam
- Korea Institute of Fusion Energy, Daejeon 34133, Republic of Korea
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26
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Akbulut S, Erten O, Kim YS, Gokceimam M, Berber E. Development of an algorithm for intraoperative autofluorescence assessment of parathyroid glands in primary hyperparathyroidism using artificial intelligence. Surgery 2021; 170:454-461. [PMID: 33676728 DOI: 10.1016/j.surg.2021.01.033] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 12/28/2020] [Accepted: 01/18/2021] [Indexed: 10/22/2022]
Abstract
BACKGROUND Previous work showed that normal and abnormal parathyroid glands exhibit different patterns of autofluorescence, with the former appearing brighter and more homogenous. However, an objective algorithm based on quantified measurements was not provided. The aim of this study is to develop objective algorithms for intraoperative autofluorescence assessment of parathyroid glands in primary hyperparathyroidism using artificial intelligence. METHODS The utility of near-infrared fluorescence imaging in parathyroidectomy procedures was evaluated in a study approved by the institutional review board. Autofluorescence patterns of parathyroid glands were measured intraoperatively. Comparisons were performed between normal and abnormal glands, as well as between different pathologies. Using machine learning, decision trees were created. RESULTS Normal parathyroid glands were brighter (higher normalized autofluorescence pixel intensity) and more homogenous (lower heterogeneity index) compared to abnormal glands. Optimal cutoffs to differentiate normal from abnormal parathyroid glands were >2.0 for normalized autofluorescence intensity (sensitivity 73%, specificity 70%, area under the curve 0.756) and <0.12 for parathyroid heterogeneity index (sensitivity 75%, specificity 81%, area under the curve 0.839). Decision trees created by machine learning using normalized autofluorescence intensity, heterogeneity index, and gland volume were 95% accurate in predicting normal versus abnormal glands and 84% accurate in predicting subclasses of parathyroid pathologies. CONCLUSION To our knowledge, this is the first study to date reporting objective algorithms using quantified autofluorescence data to intraoperatively assess parathyroid glands in primary hyperparathyroidism. These results suggest that objective data can be obtained from autofluorescence signals to help differentiate abnormal parathyroid glands from normal glands.
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Affiliation(s)
| | - Ozgun Erten
- Department of Endocrine Surgery, Cleveland Clinic, OH
| | - Yoo Seok Kim
- Department of Endocrine Surgery, Cleveland Clinic, OH
| | | | - Eren Berber
- Department of Endocrine Surgery, Cleveland Clinic, OH; Department of General Surgery, Cleveland Clinic, OH.
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27
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Lee SG, Kim MK, Kim YS. Progress of x-ray imaging crystal spectrometer utilizing double crystal assembly on KSTAR. Rev Sci Instrum 2021; 92:023501. [PMID: 33648144 DOI: 10.1063/5.0041202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 01/28/2021] [Indexed: 06/12/2023]
Abstract
The x-ray imaging crystal spectrometer (XICS) for Korea Superconducting Tokamak Advanced Research (KSTAR) has been upgraded to increase its performance including measurement capabilities and stable operation. A dual crystal assembly for simultaneous measurements of the helium-like and hydrogen-like Ar spectra is successfully installed for improving measurement capabilities. Using a safety viewing port with an illuminator and removing the XICS control system from the harsh KSTAR tokamak hall for a stable operation are newly performed. The experimental results from the improved XICS are investigated.
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Affiliation(s)
- S G Lee
- Korea Institute of Fusion Energy, 169-148 Gwahangno, Yueseong-gu, Daejeon 34133, South Korea
| | - M K Kim
- Korea Institute of Fusion Energy, 169-148 Gwahangno, Yueseong-gu, Daejeon 34133, South Korea
| | - Y S Kim
- Korea Institute of Fusion Energy, 169-148 Gwahangno, Yueseong-gu, Daejeon 34133, South Korea
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Kang SY, Lee SB, Kim YS, Kim Z, Kim HY, Kim HJ, Park S, Bae SY, Yoon K, Lee SK, Jung KW, Han J, Youn HJ. Breast Cancer Statistics in Korea, 2018. J Breast Cancer 2021; 24:123-137. [PMID: 33913273 PMCID: PMC8090800 DOI: 10.4048/jbc.2021.24.e22] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [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: 03/31/2021] [Revised: 04/12/2021] [Accepted: 04/12/2021] [Indexed: 12/25/2022] Open
Abstract
Breast cancer is the most common malignancy in Korean women, and its incidence continues to increase. The Korean Breast Cancer Society (KBCS) established a nationwide breast cancer database through its online enrollment program in 1996. This study aimed to analyze the clinical characteristics of breast cancer in Korea, and to assess the pattern of changes in breast cancer management in 2018. We analyzed the KBCS and Korea Central Cancer Registry (KCCR) databases in 2018. In 2018, 28,157 patients were newly diagnosed with breast cancer, of whom 4,510 had noninvasive breast cancer and 23,647 had invasive breast cancer. The age-standardized rate of breast cancer in 2018 was 79.0 per 100,000 women (65.6 invasive, 13.4 noninvasive). The median age of female patients diagnosed with breast cancer in 2018 was 52 years, and the incidence of breast cancer was the highest in the 40–49-years age group (9,432 patients, 33.6%). The proportion of patients with stage 0 and stage I breast cancer continued to increase, accounting for 63.8% of cases, and breast-conserving surgery was performed more often than mastectomy (66.2% vs. 33.0%). The most common subtypes of breast cancer were hormone receptor [HR]-positive and human epidermal growth factor receptor-2 (HER2)-negative types (65.9% of cases), while the HR-negative and HER2-positive types accounted for 9.2% of cases. According to the KCCR data, from 2014 to 2018, the 5-year relative survival rate of patients with breast cancer was 93.3%, which was 14.0% higher than that from 1993 to 1995 (79.3%). The clinical characteristics of breast cancer in Korea have been changing, and national databases can improve our understanding of the disease characteristics of Korean women. Therefore, updating the KBCS registry is important for the effective management of breast cancer in Korea.
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Affiliation(s)
- Sang Yull Kang
- Department of Surgery, Research Institute of Clinical Medicine, Jeonbuk National University Hospital, Jeonbuk National University and Biomedical Research Institute, Jeonju, Korea
| | - Sae Byul Lee
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Yoo Seok Kim
- Department of Surgery, Chosun University Hospital, Gwangju, Korea
| | - Zisun Kim
- Department of Surgery, Bucheon Hospital, School of Medicine, Soonchunhyang University, Bucheon, Korea
| | - Hyun Yul Kim
- Department of Surgery, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Hee Jeong Kim
- Department of Surgery, Chosun University Hospital, Gwangju, Korea
| | - Sungmin Park
- Department of Surgery, Chungbuk National University Hospital, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Soo Youn Bae
- Division of Breast and Endocrine Surgery, Department of Surgery, Korea University Hospital, Korea University College of Medicine, Seoul, Korea
| | - Kwanghyun Yoon
- Department of Surgery, Gangneung Asan Medical Center, University of Ulsan College of Medicine, Gangneung, Korea
| | - Se Kyung Lee
- Departments of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Kyu Won Jung
- The Korea Central Cancer Registry, National Cancer Center, Goyang, Korea
| | - Jaihong Han
- The Korea Central Cancer Registry, National Cancer Center, Goyang, Korea
| | - Hyun Jo Youn
- Department of Surgery, Research Institute of Clinical Medicine, Jeonbuk National University Hospital, Jeonbuk National University and Biomedical Research Institute, Jeonju, Korea.
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Akbulut S, Erten O, Kahramangil B, Gokceimam M, Kim YS, Li P, Remer EM, Berber E. A Critical Analysis of Computed Tomography Washout in Lipid-Poor Adrenal Incidentalomas. Ann Surg Oncol 2020; 28:2756-2762. [PMID: 33210268 DOI: 10.1245/s10434-020-09329-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Accepted: 10/22/2020] [Indexed: 01/14/2023]
Abstract
BACKGROUND Contrast-enhanced computed tomography (CT) with washout has emerged as an option to distinguish lipid-poor adenomas from non-adenomas. OBJECTIVE The aim of this study was to assess the utility of CT washout in characterizing indeterminate lipid-poor adrenal incidentalomas. METHODS From an Institutional Review Board-approved database, patients with adrenal incidentalomas who had adrenal protocol CT scans with a 15-min washout between 2003 and 2019 were identified. Non-contrast CT attenuation and washout patterns of different tumor types were compared. RESULTS Overall, 156 patients with 175 adrenal lesions were included. Average tumor size was 3.0 cm, non-contrast CT density was 24.7 Hounsfield units (HU), and absolute washout was 52.6%. In 102 lesions (58.3%), CT washout was ≥ 60%; 94 (92.2%) of these were benign adrenocortical adenomas, 7 (6.9%) were pheochromocytomas, and 1 (0.9%) was an adrenal hematoma. Furthermore, in 73 tumors (41.7%), CT washout was < 60%; diagnosis was benign adrenocortical adenoma in 45 (61.6%) lesions, pheochromocytoma in 8 (11%) lesions, metastasis in 9 (12.3%) lesions, adrenocortical cancer in 6 (8.2%) lesions, and 'others' in 5 (6.9%) lesions. Sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of > 60% absolute CT washout for detecting an adrenal adenoma was 67.6%, 77.8%, 92.2%, 38.4%, and 69.7%, respectively. CONCLUSION CT washout should be incorporated into the management algorithm of indeterminate adrenal incidentalomas with a high non-contrast CT attenuation to 'rule-in' benign tumors. For small tumors with mild elevation of plasma metanephrines, it should be kept in mind that adenomas and pheochromocytomas may have similar imaging and washout characteristics.
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Affiliation(s)
- Serkan Akbulut
- Department of Endocrine Surgery, Cleveland Clinic, 9500 Euclid Ave/F20, Cleveland, OH, 44195, USA
| | - Ozgun Erten
- Department of Endocrine Surgery, Cleveland Clinic, 9500 Euclid Ave/F20, Cleveland, OH, 44195, USA
| | - Bora Kahramangil
- Department of Endocrine Surgery, Cleveland Clinic, 9500 Euclid Ave/F20, Cleveland, OH, 44195, USA
| | - Mehmet Gokceimam
- Department of Endocrine Surgery, Cleveland Clinic, 9500 Euclid Ave/F20, Cleveland, OH, 44195, USA
| | - Yoo Seok Kim
- Department of Endocrine Surgery, Cleveland Clinic, 9500 Euclid Ave/F20, Cleveland, OH, 44195, USA
| | - Pengpeng Li
- Department of Endocrine Surgery, Cleveland Clinic, 9500 Euclid Ave/F20, Cleveland, OH, 44195, USA
| | - Erick M Remer
- Imaging Institute and Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Eren Berber
- Department of Endocrine Surgery, Cleveland Clinic, 9500 Euclid Ave/F20, Cleveland, OH, 44195, USA.
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Garvey S, Holmes JD, Kim YS, Long B. Vapor-Phase Passivation of Chlorine-Terminated Ge(100) Using Self-Assembled Monolayers of Hexanethiol. ACS Appl Mater Interfaces 2020; 12:29899-29907. [PMID: 32501666 DOI: 10.1021/acsami.0c02548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Continued scaling of electronic devices shows the need to incorporate high mobility alternatives to silicon, the cornerstone of the semiconductor industry, into modern field effect transistor (FET) devices. Germanium is well-poised to serve as the channel material in FET devices as it boasts an electron and hole mobility more than twice and four times that of Si, respectively. However, its unstable native oxide makes its passivation a crucial step toward its potential integration into future FETs. The International Roadmap for Devices and Systems (IRDS) predicts continued aggressive scaling not only of the device size but also of the pitch in nanowire arrays. The development of a vapor-phase chemical passivation technique will be required to prevent the collapse of these structures that can occur because of the surface tension and capillary forces that are experienced when tight-pitched nanowire arrays are processed via liquid-phase chemistry. Reported here is a vapor-phase process using hexanethiol for the passivation of planar Ge(100) substrates. Results benchmarking it against its well-established liquid-phase equivalent are also presented. X-ray photoelectron spectroscopy was used to monitor the effectiveness of the developed vapor-phase protocol, where the presence of oxide was monitored at 0, 24, and 168 h. Water contact angle measurements compliment these results by demonstrating an increase in hydrophobicity of the passivated substrates. Atomic force microscopy monitored the surface topology before and after processing to ensure the process does not cause roughening of the surface, which is critical to demonstrate suitability for nanostructures. It is shown that the 200 min vapor-phase passivation procedure generates stable, passivated surfaces with less roughness than the liquid-phase counterpart.
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Affiliation(s)
- Shane Garvey
- School of Chemistry & AMBER Centre, University College Cork, Cork T12 YN60, Ireland
- Tyndall National Institute, University College Cork, Cork T12 R5CP, Ireland
| | - Justin D Holmes
- School of Chemistry & AMBER Centre, University College Cork, Cork T12 YN60, Ireland
| | - Y S Kim
- Lam Research Corp., Fremont, California 94538, United States
| | - Brenda Long
- School of Chemistry & AMBER Centre, University College Cork, Cork T12 YN60, Ireland
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31
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Kim YS, Erten O, Kahramangil B, Aydin H, Donmez M, Berber E. The impact of near infrared fluorescence imaging on parathyroid function after total thyroidectomy. J Surg Oncol 2020; 122:973-979. [PMID: 32602151 DOI: 10.1002/jso.26098] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 06/04/2020] [Accepted: 06/20/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND Compared with conventional thyroidectomy, hypocalcemia rate was reported to be lower after total thyroidectomy (TT) utilizing near infrared fluorescence imaging (NIFI). The aim of this study is to evaluate the impact of NIFI on postoperative parathyroid function after TT. METHODS This was a retrospective institutional review board-approved study comparing 100 patients who underwent TT with NIFI guidance and 200 patients without, by the same surgeon. Clinical parameters were compared using χ2 and t test. RESULTS Average number of parathyroid glands identified intraoperatively was similar between two groups. However, rate of incidental parathyroidectomy was higher in conventional (14%) versus NIFI group (6%) (P = .039), despite similar (4% vs 6%, respectively) autotransplantation rates (P = .562). Incidences of transient (6.5% vs 5.0%) and permanent (0.5% vs 0%) hypocalcemia were not statistically different between conventional and NIFI groups (P = NS). CONCLUSION The use of NIFI during thyroidectomy may decrease the rate of incidental parathyroidectomy by increasing the ability of the surgeon to recognize parathyroid glands with fluorescent contrast distinction. Nevertheless, in contrary to recent reports in literature, postoperative hypocalcemia rate was not altered compared with conventional technique, suggesting that preservation of parathyroid vasculature, rather than an augmented ability to detect the glands, may dominantly affect postoperative function.
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Affiliation(s)
- Yoo Seok Kim
- Department of Surgery, Chosun University College of Medicine, Gwangju, South Korea.,Department of Endocrine Surgery, Cleveland Clinic, Cleveland, Ohio
| | - Ozgun Erten
- Department of Endocrine Surgery, Cleveland Clinic, Cleveland, Ohio
| | - Bora Kahramangil
- Department of General Surgery, Cleveland Clinic, Cleveland, Florida
| | - Husnu Aydin
- Department of Endocrine Surgery, Cleveland Clinic, Cleveland, Ohio
| | - Mustafa Donmez
- Department of Endocrine Surgery, Cleveland Clinic, Cleveland, Ohio
| | - Eren Berber
- Department of Endocrine Surgery, Cleveland Clinic, Cleveland, Ohio.,Department of General Surgery, Cleveland Clinic, Cleveland, Ohio
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Song S, Moon HG, Noh DY, Jung SY, Lee ES, Kim Z, Youn HJ, Cho J, Yoo YB, Lee SK, Lee JE, Nam SJ, Min JW, Kim YS, Franke A, Lee JE. Dietary Intake and Plasma Levels of Isoflavones Among Breast Cancer Survivors. Curr Dev Nutr 2020. [DOI: 10.1093/cdn/nzaa061_118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Objectives
Isoflavones, rich in soybeans, are phytoestrogens with a similar chemical structure to estrogen and their roles in breast cancer prognosis remains equivocal. We aimed to estimate dietary intake of isoflavones and soy and examine their correlations with plasma levels of isoflavones among Korean breast cancer survivors.
Methods
A total of 974 female breast cancer survivors (mean age, 52 years) were included in the cross-sectional study. We estimated dietary intake of soy and isoflavones using either a 3-day food record (3DR; n = 645) or a food frequency questionnaire (FFQ; n = 329). Plasma isoflavone levels were measured by liquid chromatography methods in 439 participants. We calculated total isoflavones by summing daidzein, genistein, and glycitein. We estimated % contribution of food sources to dietary isoflavone intake and Pearson correlation coefficients with plasma isoflavone levels. We calculated de-attenuated correlations among those who reported dietary intake using 3DRs to reduce within-person variation (n = 233).
Results
The mean daily intake of total isoflavones among Korean breast cancer survivors was 21.91 mg/d. The major sources were tofu (% contribution = 30.6%), soybean (14.2%), and soybean sprouts (12.8%). The correlation coefficients with plasma isoflavone levels were 0.19 for dietary isoflavone intake and 0.18 for soy and its products intake. The de-attenuated correlation coefficients with plasma isoflavone levels were 0.25 for dietary isoflavone intake and 0.35 for soy and its products intake. When we examined the correlation between specific type of isoflavone and circulating level of each isoflavone, the de-attenuated correlation coefficients were 0.18 for daidzein, 0.28 for genistein, and 0.25 for glycitein.
Conclusions
We found the highest contribution from tofu and soybean to dietary isoflavone intake and moderate correlations of dietary intakes of soy and isoflavones with plasma levels of isoflavones among Korean breast cancer survivors. Our study warrants further investigation on the roles of isoflavones in breast cancer prognosis.
Funding Sources
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (Ministry of Science and ICT, MSIT) (No. 2019R1F1A1061017).
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Affiliation(s)
| | | | | | | | | | - Zisun Kim
- Soonchunhyang University College of Medicine
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Hung NT, Lam NH, Nguyen AD, Bac LH, Trung NN, Dung DD, Kim YS, N Tsogbadrakh, Ochirkhuyag T, Odkhuu D. Intrinsic and tunable ferromagnetism in Bi 0.5Na 0.5TiO 3 through CaFeO 3-δ modification. Sci Rep 2020; 10:6189. [PMID: 32277074 PMCID: PMC7148307 DOI: 10.1038/s41598-020-62889-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 03/13/2020] [Indexed: 11/13/2022] Open
Abstract
New (1-x)Bi0.5Na0.5TiO3 + xCaFeO3-δ solid solution compounds were fabricated using a sol–gel method. The CaFeO3-δ materials were mixed into host Bi0.5Na0.5TiO3 materials to form a solid solution that exhibited similar crystal symmetry to those of Bi0.5Na0.5TiO3 phases. The random distribution of Ca and Fe cations in the Bi0.5Na0.5TiO3 crystals resulted in a distorted structure. The optical band gaps decreased from 3.11 eV for the pure Bi0.5Na0.5TiO3 samples to 2.34 eV for the 9 mol% CaFeO3-δ-modified Bi0.5Na0.5TiO3 samples. Moreover, the Bi0.5Na0.5TiO3 samples exhibited weak photoluminescence because of the intrinsic defects and suppressed photoluminescence with increasing CaFeO3-δ concentration. Experimental and theoretical studies via density functional theory calculations showed that pure Bi0.5Na0.5TiO3 exhibited intrinsic ferromagnetism, which is associated with the possible presence of Bi, Na, and Ti vacancies and Ti3+-defect states. Further studies showed that such an induced magnetism by intrinsic defects can also be enhanced effectively with CaFeO3-δ addition. This study provides a basis for understanding the role of secondary phase as a solid solution in Bi0.5Na0.5TiO3 to facilitate the development of lead-free ferroelectric materials.
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Affiliation(s)
- N T Hung
- School of Engineering Physics, Ha Noi University of Science and Technology, 1 Dai Co Viet road, Ha Noi, Viet Nam
| | - N H Lam
- School of Engineering Physics, Ha Noi University of Science and Technology, 1 Dai Co Viet road, Ha Noi, Viet Nam
| | - A D Nguyen
- Department of Physics, Faculty of Basic-Fundamental Sciences, Viet Nam Maritime University, 484 Lach Tray Road, Le Chan, Hai Phong, Viet Nam.,Department of Physics, University of Ulsan, Ulsan, 680-749, Republic of Korea
| | - L H Bac
- School of Engineering Physics, Ha Noi University of Science and Technology, 1 Dai Co Viet road, Ha Noi, Viet Nam
| | - N N Trung
- School of Engineering Physics, Ha Noi University of Science and Technology, 1 Dai Co Viet road, Ha Noi, Viet Nam
| | - D D Dung
- School of Engineering Physics, Ha Noi University of Science and Technology, 1 Dai Co Viet road, Ha Noi, Viet Nam.
| | - Y S Kim
- Department of Physics, University of Ulsan, Ulsan, 680-749, Republic of Korea.
| | - N Tsogbadrakh
- Department of Physics, National University of Mongolia, Ulaanbaatar, 14201, Mongolia
| | - T Ochirkhuyag
- Department of Physics, Incheon National University, Incheon, 22012, Republic of Korea
| | - D Odkhuu
- Department of Physics, Incheon National University, Incheon, 22012, Republic of Korea.
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Kang SY, Kim YS, Kim Z, Kim HY, Kim HJ, Park S, Bae SY, Yoon KH, Lee SB, Lee SK, Jung KW, Han J, Youn HJ. Breast Cancer Statistics in Korea in 2017: Data from a Breast Cancer Registry. J Breast Cancer 2020; 23:115-128. [PMID: 32395372 PMCID: PMC7192743 DOI: 10.4048/jbc.2020.23.e24] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 04/02/2020] [Indexed: 12/12/2022] Open
Abstract
This article describes the breast cancer statistics in Korea, including the incidence, type of surgical procedure, stage, and molecular subtype, using the Korean Breast Cancer Society (KBCS) and Korea Central Cancer Registry data. There were a total of 26,534 new breast cancer diagnoses in 2017 in Korea, of which 4,139 were carcinoma in situ cases and 22,395 were invasive cancer cases. The age standardized rate of breast cancer was 75.3 per 100,000 women in 2017 (63.0 of invasive carcinoma and 12.3 of carcinoma in situ), and it has been steadily increasing across all age groups. Breast cancer occurred most commonly in the 40–49 age group. Compared to 2016, breast conserving surgery (BCS) has increased, and 67.4% of patients were treated with BCS in 2017. The proportions of stage 0 and stage I have continued to increase, accounting for 60.7%. The most common subtype of breast cancer was hormone receptor (HR) positive and human epidermal growth factor receptor-2 (HER2) negative type comprising 65.9% of the cases, whereas HR negative and HER2 positive type was the rarest comprising 10.2% of the cases. The 5-year relative survival rate of breast cancer patients had increased by 14.0% from 79.2% in 1993–1995 to 93.2% in 2013–2017. It is essential to actively enter breast cancer data into the KBCS registry to improve our understanding.
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Affiliation(s)
- Sang Yull Kang
- Department of Surgery, Research Institute of Clinical Medicine, Jeonbuk National University Hospital, Jeonbuk National University and Biomedical Research Institute, Jeonju, Korea
| | - Yoo Seok Kim
- Department of Surgery, Chosun University Hospital, Gwangju, Korea
| | - Zisun Kim
- Department of Surgery, Bucheon Hospital, School of Medicine, Soonchunhyang University, Bucheon, Korea
| | - Hyun Yul Kim
- Department of Surgery, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Hee Jeong Kim
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Sungmin Park
- Department of Surgery, Chungbuk National University Hospital, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Soo Youn Bae
- Division of Breast and Endocrine Surgery, Department of Surgery, Korea University Hospital, Korea University College of Medicine, Seoul, Korea
| | - Kwang Hyun Yoon
- Department of Surgery, Gangneung Asan Medical Center, University of Ulsan College of Medicine, Gangneung, Korea
| | - Sae Byul Lee
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Se Kyung Lee
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Kyu-Won Jung
- The Korea Central Cancer Registry, National Cancer Center, Goyang, Korea
| | - Jaihong Han
- The Korea Central Cancer Registry, National Cancer Center, Goyang, Korea
| | - Hyun Jo Youn
- Department of Surgery, Research Institute of Clinical Medicine, Jeonbuk National University Hospital, Jeonbuk National University and Biomedical Research Institute, Jeonju, Korea
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Park CH, Lee B, Oh E, Kim YS, Choi YM. Combined effects of sous-vide cooking conditions on meat and sensory quality characteristics of chicken breast meat. Poult Sci 2020; 99:3286-3291. [PMID: 32475464 PMCID: PMC7597729 DOI: 10.1016/j.psj.2020.03.004] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 02/19/2020] [Indexed: 11/18/2022] Open
Abstract
This study investigated the combined effects of cooking temperature and time on the meat and eating quality characteristics of the sous-vide chicken breast. For the control group, chicken breast samples were cooked in a convection oven until the internal temperature reached 71°C. Each sample for sous-vide cooking was vacuum packaged and then cooked under continuous thermocontrolled conditions in a water bath at 6 combinations of cooking temperature (60 and 70°C) and time (1, 2, and 3 h). Sous-vide cooked chicken meat at 60°C for 1 h (SV60-1h) showed lower cooking loss (6.58 vs. 26.5%, P < 0.05), Warner-Bratzler shear force (21.7 vs. 29.1 N, P < 0.05), and hardness (9.40 vs. 17.3 N, P < 0.05) than meat cooked by conventional oven. Similar to the objective tenderness parameters, cooked chicken meat from the SV60 treatments for all cooking times showed higher scores in all the tenderness attributes than the control group (P < 0.05). However, a higher flavor intensity was observed in the SV70-3h and control groups than in the SV60 treatments (P < 0.05). Owing to a lesser developed flavor in chicken meat from the SV60-1h treatment, the SV60-2h and 3h treatments were assigned a higher acceptability rating for overall impression (P < 0.05). Therefore, cooking temperature and time of sous-vide significantly influenced the physicochemical and palatability characteristics of chicken breast. In this study, the optimum conditions for the sous-vide chicken breast are to continuously cook at 60°C for 2 to 3 h to improve sensory quality characteristics without reducing the water-holding capacity.
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Affiliation(s)
- C H Park
- Department of Integrated Biomedical and Life Sciences, Korea University, Seoul, South Korea; Department of Hotel and Food Service Culinary Art, Daejeon Health Institute of Technology, Daejeon, South Korea
| | - B Lee
- Department of Animal Sciences, Kyungpook National University, Sangju, South Korea
| | - E Oh
- Department of Animal Sciences, Kyungpook National University, Sangju, South Korea
| | - Y S Kim
- Department of Integrated Biomedical and Life Sciences, Korea University, Seoul, South Korea.
| | - Y M Choi
- Department of Animal Sciences, Kyungpook National University, Sangju, South Korea.
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Lupatov AY, Gisina AM, Kim YS, Bykasov SA, Volchenko NN, Sidorov DV, Yarygin KN, Kholodenko RV. [Expression of ganglioside GD2 on colorectal adenocarcinoma cells]. Biomed Khim 2020; 66:95-99. [PMID: 32116232 DOI: 10.18097/pbmc20206601095] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Using flow cytometry GD2 ganglioside expression was evaluated both on colorectal adenocarcinoma cell lines and on tumor tissue samples from colorectal cancer patients. The marker was found on EpCAM-positive tumor cells in 6 of 12 patients' samples but not on the HT29 and CaCo-2 cell lines. GD2 expression was not an exceptional feature of cancer stem cells, since its expression level was similar on CD133-positive and CD133-negative tumor cells. Thus, the presence of GD2 ganglioside was revealed on colorectal adenocarcinoma cells for the first time. This finding makes it possible to use targeted therapy to treat this disease.
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Affiliation(s)
- A Yu Lupatov
- Institute of Biomedical Chemistry, Moscow, Russia
| | - A M Gisina
- Institute of Biomedical Chemistry, Moscow, Russia
| | - Y S Kim
- Institute of Biomedical Chemistry, Moscow, Russia
| | - S A Bykasov
- Hertsen Moscow Oncology Research Center - branch of National Medical Research Radiological Center of the Ministry of Health, Moscow, Russia
| | - N N Volchenko
- Hertsen Moscow Oncology Research Center - branch of National Medical Research Radiological Center of the Ministry of Health, Moscow, Russia
| | - D V Sidorov
- Hertsen Moscow Oncology Research Center - branch of National Medical Research Radiological Center of the Ministry of Health, Moscow, Russia
| | - K N Yarygin
- Institute of Biomedical Chemistry, Moscow, Russia
| | - R V Kholodenko
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Science, Moscow, Russia
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Kim JE, Kim YC, Min SL, Lee H, Ha J, Chin HJ, Kim YS, Han SS. Transplant outcomes in kidney recipients with lupus nephritis, and systematic review. Lupus 2020; 29:248-255. [DOI: 10.1177/0961203320902524] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background Despite improved survival of patients with lupus nephritis (LN), some require kidney transplantation because of progression to end-stage renal disease (ESRD). However, the transplant outcomes of these patients and other recipients have not been thoroughly compared. Methods In total, 1848 Korean kidney recipients who underwent transplantation from 1998 to 2017 at two tertiary referral centers were evaluated retrospectively. Among them, 28 recipients with LN, and 50 control recipients matched by age, sex, and donor type, were compared with respect to graft and patient survival. We pooled our data with 17 previous cohort studies in which the graft survival of recipients with LN was described in detail. Results During the median follow-up period of 9.5 years (maximum 21 years), graft failure (GF) occurred in 10.7% and 16.0% of LN and control recipients, respectively. No differences were found in the rates of GF and death-censored graft failure or patient survival between the two groups. The risks of acute T cell-mediated and antibody-mediated rejection were also similar between the two groups. The pooled analysis showed similar 1- and 5-year graft survival rates between LN and control recipients. Conclusions Kidney transplantation is an acceptable option in patients with concurrent LN and ESRD.
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Affiliation(s)
- J E Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Y C Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - S-l Min
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - H Lee
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - J Ha
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - H J Chin
- Department of Internal Medicine, Seoul National University Bundang Hospital, Gyeonggi-do, Korea
| | - Y S Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - S S Han
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
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Wang L, Paeng D, Jin Z, Zhang H, Kim YS, Rho Y, Eliceiri M, Grigoropoulos CP. Design and validation of a ten nanosecond resolved resistive thermometer for Gaussian laser beam heating. Rev Sci Instrum 2019; 90:124903. [PMID: 31893827 DOI: 10.1063/1.5118811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 12/04/2019] [Indexed: 06/10/2023]
Abstract
Pulsed laser processing plays a crucial role in additive manufacturing and nanomaterial processing. However, probing the transient temperature field during the pulsed laser interaction with the processed materials is challenging as it requires both high spatial and temporal resolution. Previous transient thermometry studies have measured neither sub-100 µm spatial resolution nor sub-10 ns temporal resolution. The temperature field induced by Gaussian laser beam profiles has also not been accounted for. Here, we demonstrate a 9 ns rise time, 50 µm sized Pt thin-film sensor for probing the temperature field generated by a nanosecond pulsed laser on a semiconductor thin film. The measurement error sources and associated improvements in the thin film fabrication, sensor patterning, and electrical circuitry are discussed. We carried out the first experimental and theoretical analysis of spatial resolution and accuracy for measuring a Gaussian pulse on the serpentine structure. Transparent silica and sapphire substrates, as well as 7-45 nm insulation layer thicknesses, are compared for sensing accuracy and temporal resolution. Finally, the measured absolute temperature magnitude is validated through the laser-induced melting of the 40 nm thick amorphous silicon film. Preliminary study shows its potential application for probing heat conduction among ultrathin films.
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Affiliation(s)
- Letian Wang
- Laser Thermal Laboratory, Department of Mechanical Engineering, University of California, Berkeley, Berkeley, California 94720-1740, USA
| | - Dongwoo Paeng
- Lam Research Corporation, 4650 Cushing Pkwy, Fremont, California 94538, USA
| | - Zeqing Jin
- Laser Thermal Laboratory, Department of Mechanical Engineering, University of California, Berkeley, Berkeley, California 94720-1740, USA
| | - He Zhang
- Lam Research Corporation, 4650 Cushing Pkwy, Fremont, California 94538, USA
| | - Y S Kim
- Lam Research Corporation, 4650 Cushing Pkwy, Fremont, California 94538, USA
| | - Yoonsoo Rho
- Laser Thermal Laboratory, Department of Mechanical Engineering, University of California, Berkeley, Berkeley, California 94720-1740, USA
| | - Matthew Eliceiri
- Laser Thermal Laboratory, Department of Mechanical Engineering, University of California, Berkeley, Berkeley, California 94720-1740, USA
| | - Costas P Grigoropoulos
- Laser Thermal Laboratory, Department of Mechanical Engineering, University of California, Berkeley, Berkeley, California 94720-1740, USA
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An JM, Kang EA, Han YM, Kim YS, Hong YG, Hah BS, Hong SP, Hahm KB. Dietary threonine prevented stress-related mucosal diseases in rats. J Physiol Pharmacol 2019; 70. [PMID: 31566193 DOI: 10.26402/jpp.2019.3.14] [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] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Accepted: 06/28/2019] [Indexed: 11/03/2022]
Abstract
Stress-related mucosal disease (SRMD), or stress ulceration, is a group of conditions ranging from stress-related superficial gastric mucosal damage to deep gastric ulcers that are primarily correlated with mucosal ischemia, and pharmacologic interventions that optimize tissue perfusion or preserve defensive mucus aim to decrease the occurrence of conditions, such as gastric acidity, or enhance gastric defenses. However, the identification of multifactorial pathogenesis may be effective in preventing SMRD, and the use of stress prophylaxis is generally preferred. Since threonine is a component in the polymerization and synthesis of gastric mucin and possibly enhanced defense actions and lignin may provide structural support for defense and antioxidative function, we hypothesized that dietary intake of threonine and/or lignin can enhance defense against SRMD. The water immersion-restraint stress (WIRS) was used in rats and additional groups were pretreated with threonine alone or the combination of threonine and lignin. Based on gross and microscopic evaluations, threonine alone or the combination of threonine and lignin, a natural antioxidant, significantly reduced the development of SRMD (P < 0.05). According to molecular explorations, the levels of inflammatory mediators, such as interleukin (IL)-8, IL-6, IL-1β, inducible nitric oxide synthase (iNOS), tumor necrosis factor alpha (TNF-α), and interferon gamma (IFN-γ), all of which are mediators that play a significant role in controlling WIRS, significantly decreased in the groups pretreated with either threonine alone or the combination of threonine and lignin (P < 0.01). WIRS significantly increased apoptosis in the stomach. However, the apoptotic index significantly decreased with threonine pretreatment. According to periodic acid Schiff staining results, the expression of gastric mucin was significantly preserved in groups pretreated with threonine but remarkedly decreased in the WIRS group. The gastric heme oxygenase-1 levels significantly increased in the group treated with threonine. In conclusion, the dietary intake of threonine or the combination of threonine and lignin is effective in preventing SRMD.
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Affiliation(s)
- J M An
- CHA Cancer Preventive Research Center, CHA Bio Complex, CHA University, Pangyo, Korea
| | - E A Kang
- CHA Cancer Preventive Research Center, CHA Bio Complex, CHA University, Pangyo, Korea
| | - Y M Han
- CHA Cancer Preventive Research Center, CHA Bio Complex, CHA University, Pangyo, Korea
| | - Y S Kim
- BIO Technical Marketing, CJ Cheiljedang Corporation, Seoul, Korea
| | - Y G Hong
- BIO Technical Marketing, CJ Cheiljedang Corporation, Seoul, Korea
| | - B S Hah
- BIO Technical Marketing, CJ Cheiljedang Corporation, Seoul, Korea
| | - S P Hong
- Digestive Disease Center, CHA University Bundang Medical Center, Seongnam, Korea
| | - K B Hahm
- CHA Cancer Preventive Research Center, CHA Bio Complex, CHA University, Pangyo, Korea. .,Digestive Disease Center, CHA University Bundang Medical Center, Seongnam, Korea
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Lee EH, Kim SJ, Ha EJ, Park ES, Choi JY, Leem AY, Kim SY, Park MS, Kim YS, Kang YA. Treatment of latent tuberculous infection among health care workers at a tertiary hospital in Korea. Int J Tuberc Lung Dis 2019; 22:1336-1343. [PMID: 30355414 DOI: 10.5588/ijtld.18.0280] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVE To evaluate the acceptance of, adherence to, and outcomes of latent tuberculous infection (LTBI) treatment among health care workers (HCWs). DESIGN This was a retrospective study in a tertiary hospital in Korea. From May to August 2017, 2190 HCWs simultaneously underwent a tuberculin skin test (TST) and interferon-gamma release assay (IGRA). LTBI was diagnosed if the TST induration was 10 mm or IGRA results were positive. RESULTS Of 2190 HCWs tested, 1006 (45.9%) were diagnosed with LTBI. Of these, 655 (65.1%) HCWs visited out-patient clinics, 234 (35.7%) of whom were advised treatment by physicians. Among these, 120 (51.3%) accepted the physicians' recommendations. In general, HCWs who were older, male and smoked were less likely to visit out-patient clinics. Sixty (50%) HCWs received 3 months of isoniazid plus rifampicin (3HR) and 57 (47.5%) HCWs received 4 months of rifampicin (4R). The proportion of HCWs with 2 side effects (3HR 20% vs. 4R 7.0%, P = 0.041) and drug stoppage rate (3HR 20% vs. 4R 5.3%, P = 0.017) were higher in the 3HR group than in the 4R group. Of the 120 HCWs, 78 (65%) completed LTBI treatment. CONCLUSION Overall, the acceptance and completion rate for LTBI treatment was not adequate. For effective LTBI management in HCWs, further programmatic strategies are needed.
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Affiliation(s)
- E H Lee
- Division of Pulmonology, Department of Internal Medicine, Institute of Chest Diseases, Severance Hospital, Yonsei University College of Medicine, Seoul
| | - S J Kim
- Infection Control Office, Severance Hospital, Seoul
| | - E J Ha
- Infection Control Office, Severance Hospital, Seoul
| | - E S Park
- Infection Control Office, Severance Hospital, Seoul
| | - J Y Choi
- Infection Control Office, Severance Hospital, Seoul, Division of Infectious Disease, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - A Y Leem
- Division of Pulmonology, Department of Internal Medicine, Institute of Chest Diseases, Severance Hospital, Yonsei University College of Medicine, Seoul
| | - S Y Kim
- Division of Pulmonology, Department of Internal Medicine, Institute of Chest Diseases, Severance Hospital, Yonsei University College of Medicine, Seoul
| | - M S Park
- Division of Pulmonology, Department of Internal Medicine, Institute of Chest Diseases, Severance Hospital, Yonsei University College of Medicine, Seoul
| | - Y S Kim
- Division of Pulmonology, Department of Internal Medicine, Institute of Chest Diseases, Severance Hospital, Yonsei University College of Medicine, Seoul
| | - Y A Kang
- Division of Pulmonology, Department of Internal Medicine, Institute of Chest Diseases, Severance Hospital, Yonsei University College of Medicine, Seoul
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Lee J, Lee Y, Kim YS, Choi JG, Go TH, Kim H, Cha YS. Serum ammonia as an early predictor of in-hospital mortality in patients with glufosinate poisoning. Hum Exp Toxicol 2019; 38:1007-1013. [DOI: 10.1177/0960327119855124] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Background: The mortality rate associated with human glufosinate poisoning is high. We evaluated the usefulness of serum ammonia and sequential organ failure assessment (SOFA) and acute physiology and chronic health evaluation II (APACHE II) scores for early prediction of in-hospital mortality in glufosinate ammonium poisoning. Methods: A prospectively collected pesticide poisoning registry at a single academic medical center was retrospectively analyzed. Data were collected from consecutive patients diagnosed with glufosinate ammonium poisoning between May 2007 and February 2018. The initial serum ammonia level was defined as the highest serum ammonia level measured within 12 h after emergency department (ED) arrival. The SOFA and APACHE II scores were calculated using data obtained within the first 12 h after ED arrival. The patients were divided into survivor and nonsurvivor groups by in-hospital death status. Results: In total, 110 patients were included. Ten patients (9.1%) died in the hospital despite treatment. Median initial serum ammonia level was significantly higher in the nonsurvivor group than in the survivor group (219 (range: 158–792) versus 100.5 (range: 25–317) µg/dL, p < 0.001). Median SOFA and APACHE II scores in the survivor and nonsurvivor groups were 2 (range: 0–10) versus 5 (range: 1–8) ( p = 0.044) and 7 (range: 0–28) versus 16 (range: 8–22) ( p = 0.001), respectively. In the multiple logistic regression analysis, the initial serum ammonia level was the only independent predictor (cutoff value: 151 µg/dL). Conclusion: An initial serum ammonia level >151 µg/dL was an independent early predictor of in-hospital mortality in glufosinate ammonium poisoning.
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Affiliation(s)
- J Lee
- Department of Emergency Medicine, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Y Lee
- Department of Emergency Medicine, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - YS Kim
- Department of Emergency Medicine, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - JG Choi
- Department of Emergency Medicine, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - TH Go
- Center of Biomedical Data Science, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - H Kim
- Department of Emergency Medicine, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - YS Cha
- Department of Emergency Medicine, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
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Kang SY, Kim YS, Kim Z, Kim HY, Lee SK, Jung KW, Youn HJ. Erratum: Basic Findings Regarding Breast Cancer in Korea in 2015: Data from a Breast Cancer Registry. J Breast Cancer 2019; 22:153. [PMID: 30941243 PMCID: PMC6438832 DOI: 10.4048/jbc.2019.22.e12] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Affiliation(s)
- Sang Yull Kang
- Department of Surgery, Research Institute of Clinical Medicine, Chonbuk National University Hospital, Chonbuk National University and Biomedical Research Institute, Jeonju, Korea
| | - Yoo Seok Kim
- Department of Surgery, Chosun University Hospital, Chosun University College of Medicine, Gwangju, Korea
| | - Zisun Kim
- Department of Surgery, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea
| | - Hyun-Yul Kim
- Department of Surgery, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Busan, Korea
| | - Se Kyung Lee
- Division of Breast and Endocrine Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Kyu-Won Jung
- The Korea Central Cancer Registry, Division of Cancer Registration and Surveillance, National Cancer Center, Goyang, Korea
| | - Hyun Jo Youn
- Department of Surgery, Research Institute of Clinical Medicine, Chonbuk National University Hospital, Chonbuk National University and Biomedical Research Institute, Jeonju, Korea
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Won HS, Sun DS, Ko YH, You SH, Kim YS, Kim JS. Abstract P2-05-03: Clinical implication of APOBEC3A and 3B in Korean patients with breast cancer. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p2-05-03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Apolipoprotein B mRNA-editing enzyme, catalytic polypeptide-like (APOBEC) family is known to function in innate immune system that protects against retrovirus by deaminating cytosine to uracil in single-stranded DNA. APOBEC family has emerged as an endogenous mutator to contribute to the mutation burden in many cancers. We aimed to evaluate the expression of APOBEC3A (A3A), 3B (A3B) mRNA and APOBEC3A-3B deletion polymorphism in Korean breast cancer patients and investigate the correlation between their expression and clinicopathological characteristics.
Methods: One hundred thirty-eight patients who underwent surgery for breast cancer in Uijeongbu St. Mary's Hospital between January 2013 and December 2016 were evaluated. RNA and DNA were extracted from 138 breast cancer tissues and 10 adjacent normal breast tissues. The levels of A3A and A3B mRNA transcripts were determined using real-time quantitative PCR. Insertion and deletion PCR assays were performed to detect the APOBEC3A-3B deletion allele. Mutation hotspots in exon 2-11 of TP53 and exon 9/20 of PIK3CA were evaluated using direct sequencing method.
Results: The expression of A3B was increased in breast cancer tissues than in normal breast tissues. The median A3B mRNA expression levels in both triple-negative breast cancer and human epidermal growth factor 2-positive breast cancer were significantly higher than in hormone receptor-positive breast cancer. Old age and high ki-67 expression were associated with increased expression of A3A and A3B. Advanced stage, presence of lymph node involvement, and high histological grade were associated with increased expression of A3A. The APOBEC3B deletion allele was found in 78 (56%) tumor samples. There was no significant association between A3A, A3B mRNA levels and the presence of APOBEC3B deletion allele. There was no difference in clinicopathological characteristics according to the presence of APOBEC3B deletion allele except histological grade. The frequency of high histological grade was significantly higher in tumors with APOBEC3B deletion allele than tumors without APOBEC3B deletion allele. TP53 mutations were identified in 12 (8.7%) cases and PIK3CA mutations were identified in 31 (22.5%) cases. There were no significant differences in the levels of A3A and A3B mRNA expression by TP53 mutation status. The presence of a PIK3CA mutation was significantly associated with lower A3A expression.
Conclusions: The levels of A3B mRNA expression showed a difference according to breast cancer subtype, and triple-negative breast cancer showed the highest levels of A3B mRNA expression. The high levels of A3A and A3B mRNA expression were associated with an aggressive phenotype including high proliferation index. The APOBEC3A-3B deletion polymorphism was found in about half of the patients, but there was no difference in clinicopathological factors according to the presence of APOBEC3B deletion allele except histological grade.
Citation Format: Won HS, Sun DS, Ko YH, You SH, Kim YS, Kim JS. Clinical implication of APOBEC3A and 3B in Korean patients with breast cancer [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P2-05-03.
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Affiliation(s)
- HS Won
- College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - DS Sun
- College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - YH Ko
- College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - SH You
- College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - YS Kim
- College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - JS Kim
- College of Medicine, The Catholic University of Korea, Seoul, Korea
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Kim YS, Shim EJ, Lee JW, Cho J, Jung HK, Kim NH, Lee JE, Min J, Noh WC, Park SH. Abstract P1-08-21: Association of depression and anxiety disorder with the risk of mortality in breast cancer: A national health insurance service study in South Korea. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p1-08-21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
PURPOSE: To examine whether depression, anxiety disorder and their co-occurrence would increase the risk of mortality in patients with breast cancer, and whether antidepressant treatment would reduce the same.
PATIENTS AND METHODS: Data were retrieved from the database of the Korean National Health Insurance Service. Of 145,251 patients diagnosed with breast cancer between 2007 and 2014, 20,870 patients diagnosed with depression or anxiety disorder one year before breast cancer diagnosis were excluded. Thus, data of 124,381 patients were included in this study.
RESULTS: Anxiety disorder was more prevalent than depression in patients with breast cancer, and similar factors were associated with both depression and anxiety disorder. Overall, female sex, older age, residence in metropolitan areas, lower income, higher comorbidity, carcinoma in situ, and the receipt of any type of cancer therapies were associated with an increased risk of depression or anxiety disorder. Depression and anxiety disorder were associated with an increased risk of mortality (Hazard Ratio (HR) = 1.26, 95% CI=1.18–1.36; HR=1.14, 95% CI=1.08–1.22, respectively) and their co-occurrence further increased the risk (HR=1.38, 95% CI=1.24–1.54). Antidepressant treatment was related to a reduced risk of mortality. Compared to patients with no depression, among those with depression, the risk of mortality was 2.18 times higher (95% CI=1.69–2.81) in patients who did not receive antidepressant treatment and 1.25 times higher (95% CI =1.17–1.32) in those who received antidepressant treatment.
CONCLUSION: The current findings suggest that psychiatric comorbidities are markers of increased mortality risk in patients with breast cancer. This underscores the need for screening and treating depression and anxiety disorders to improve survival in breast cancer.
Citation Format: Kim YS, Shim E-J, Lee JW, Cho J, Jung HK, Kim NH, Lee JE, Min J, Noh WC, Park S-H. Association of depression and anxiety disorder with the risk of mortality in breast cancer: A national health insurance service study in South Korea [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P1-08-21.
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Affiliation(s)
- YS Kim
- Chosun University College of Medicine, Gwangju, Republic of Korea; Pusan National University, Busan, Republic of Korea; University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea; Seran General Hospital, Seoul, Republic of Korea; Kaywon University of Art and Design, Uiwang-si, Republic of Korea; Seoul National University, Seoul, Republic of Korea; Dankook University College of Medicine, Cheonan, Republic of Korea; Korea Institute of Radiology and Medical Science, Korea Cancer Center Hospital, Seoul, Republic of Korea; Daegu Catholic University Medical Center, Daegu, Republic of Korea
| | - E-J Shim
- Chosun University College of Medicine, Gwangju, Republic of Korea; Pusan National University, Busan, Republic of Korea; University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea; Seran General Hospital, Seoul, Republic of Korea; Kaywon University of Art and Design, Uiwang-si, Republic of Korea; Seoul National University, Seoul, Republic of Korea; Dankook University College of Medicine, Cheonan, Republic of Korea; Korea Institute of Radiology and Medical Science, Korea Cancer Center Hospital, Seoul, Republic of Korea; Daegu Catholic University Medical Center, Daegu, Republic of Korea
| | - JW Lee
- Chosun University College of Medicine, Gwangju, Republic of Korea; Pusan National University, Busan, Republic of Korea; University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea; Seran General Hospital, Seoul, Republic of Korea; Kaywon University of Art and Design, Uiwang-si, Republic of Korea; Seoul National University, Seoul, Republic of Korea; Dankook University College of Medicine, Cheonan, Republic of Korea; Korea Institute of Radiology and Medical Science, Korea Cancer Center Hospital, Seoul, Republic of Korea; Daegu Catholic University Medical Center, Daegu, Republic of Korea
| | - J Cho
- Chosun University College of Medicine, Gwangju, Republic of Korea; Pusan National University, Busan, Republic of Korea; University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea; Seran General Hospital, Seoul, Republic of Korea; Kaywon University of Art and Design, Uiwang-si, Republic of Korea; Seoul National University, Seoul, Republic of Korea; Dankook University College of Medicine, Cheonan, Republic of Korea; Korea Institute of Radiology and Medical Science, Korea Cancer Center Hospital, Seoul, Republic of Korea; Daegu Catholic University Medical Center, Daegu, Republic of Korea
| | - HK Jung
- Chosun University College of Medicine, Gwangju, Republic of Korea; Pusan National University, Busan, Republic of Korea; University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea; Seran General Hospital, Seoul, Republic of Korea; Kaywon University of Art and Design, Uiwang-si, Republic of Korea; Seoul National University, Seoul, Republic of Korea; Dankook University College of Medicine, Cheonan, Republic of Korea; Korea Institute of Radiology and Medical Science, Korea Cancer Center Hospital, Seoul, Republic of Korea; Daegu Catholic University Medical Center, Daegu, Republic of Korea
| | - NH Kim
- Chosun University College of Medicine, Gwangju, Republic of Korea; Pusan National University, Busan, Republic of Korea; University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea; Seran General Hospital, Seoul, Republic of Korea; Kaywon University of Art and Design, Uiwang-si, Republic of Korea; Seoul National University, Seoul, Republic of Korea; Dankook University College of Medicine, Cheonan, Republic of Korea; Korea Institute of Radiology and Medical Science, Korea Cancer Center Hospital, Seoul, Republic of Korea; Daegu Catholic University Medical Center, Daegu, Republic of Korea
| | - JE Lee
- Chosun University College of Medicine, Gwangju, Republic of Korea; Pusan National University, Busan, Republic of Korea; University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea; Seran General Hospital, Seoul, Republic of Korea; Kaywon University of Art and Design, Uiwang-si, Republic of Korea; Seoul National University, Seoul, Republic of Korea; Dankook University College of Medicine, Cheonan, Republic of Korea; Korea Institute of Radiology and Medical Science, Korea Cancer Center Hospital, Seoul, Republic of Korea; Daegu Catholic University Medical Center, Daegu, Republic of Korea
| | - J Min
- Chosun University College of Medicine, Gwangju, Republic of Korea; Pusan National University, Busan, Republic of Korea; University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea; Seran General Hospital, Seoul, Republic of Korea; Kaywon University of Art and Design, Uiwang-si, Republic of Korea; Seoul National University, Seoul, Republic of Korea; Dankook University College of Medicine, Cheonan, Republic of Korea; Korea Institute of Radiology and Medical Science, Korea Cancer Center Hospital, Seoul, Republic of Korea; Daegu Catholic University Medical Center, Daegu, Republic of Korea
| | - WC Noh
- Chosun University College of Medicine, Gwangju, Republic of Korea; Pusan National University, Busan, Republic of Korea; University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea; Seran General Hospital, Seoul, Republic of Korea; Kaywon University of Art and Design, Uiwang-si, Republic of Korea; Seoul National University, Seoul, Republic of Korea; Dankook University College of Medicine, Cheonan, Republic of Korea; Korea Institute of Radiology and Medical Science, Korea Cancer Center Hospital, Seoul, Republic of Korea; Daegu Catholic University Medical Center, Daegu, Republic of Korea
| | - S-H Park
- Chosun University College of Medicine, Gwangju, Republic of Korea; Pusan National University, Busan, Republic of Korea; University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea; Seran General Hospital, Seoul, Republic of Korea; Kaywon University of Art and Design, Uiwang-si, Republic of Korea; Seoul National University, Seoul, Republic of Korea; Dankook University College of Medicine, Cheonan, Republic of Korea; Korea Institute of Radiology and Medical Science, Korea Cancer Center Hospital, Seoul, Republic of Korea; Daegu Catholic University Medical Center, Daegu, Republic of Korea
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Lee KH, Han SH, Yong D, Paik HC, Lee JG, Kim MS, Joo DJ, Choi JS, Kim SI, Kim YS, Park MS, Kim SY, Yoon YN, Kang S, Jeong SJ, Choi JY, Song YG, Kim JM. Acquisition of Carbapenemase-Producing Enterobacteriaceae in Solid Organ Transplantation Recipients. Transplant Proc 2019; 50:3748-3755. [PMID: 30577266 DOI: 10.1016/j.transproceed.2018.01.058] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 01/23/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND Carbapenemase-producing Enterobacteriaceae (CPE) can lead to life-threatening outcomes with rapid spread of the carbapenemase gene in solid organ transplantation (SOT) recipients because of limitations of available antibiotics. We examined the characteristics and importance of CPE acquisition in SOT recipients with large numbers of CPE isolates. METHODS Between November 2015 and October 2016, 584 CPE isolates were found in 37 recipients and verified by carbapenemase gene multiplex polymerase chain reaction (PCR). One hundred recipients with at least 2 negative results in carbapenemase PCR for stool surveillance and no CPE isolates in clinical samples were retrospectively included. RESULTS Most CPE isolates were Klebsiella pneumoniae carbapenemase (KPC)-producing K. pneumoniae (546, 93.5%). The most frequent transplantation organ was lung (43.3%), and the most common sample with CPE isolates other than stool was respiratory tract (22.6%). The median time between SOT and first CPE acquisition was 7 days. All-cause mortality was significantly higher in recipients with CPE than in those without CPE (24.3% vs 10.0%; P = .03). In multivariate regression analysis, stool colonization of vancomycin-resistant Enterococci and/or Clostridium difficile during 30 days before SOT (odds ratio [OR], 3.28; 95% CI, 1.24-8.68; P = .02), lung transplantation (OR, 4.50; 95% CI, 1.19-17.03; P = .03), and intensive care unit stay ≥2 weeks (OR, 6.21; 95% CI, 1.72-22.45; P = .005) were associated with acquisition of CPE. CONCLUSIONS Early posttransplantation CPE acquisition may affect the clinical outcome of SOT recipients. Careful screening for CPE during the early posttransplantation period would be meaningful in recipients with risk factors.
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Affiliation(s)
- K H Lee
- Division of Infectious Disease, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - S H Han
- Division of Infectious Disease, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea.
| | - D Yong
- Department of Laboratory Medicine and Research Institute of Bacterial Resistance, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - H C Paik
- Department of Thoracic and Cardiovascular Surgery, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - J G Lee
- Department of Thoracic and Cardiovascular Surgery, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - M S Kim
- Department of Transplantation Surgery and Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - D J Joo
- Department of Transplantation Surgery and Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - J S Choi
- Department of Transplantation Surgery and Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - S I Kim
- Department of Transplantation Surgery and Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Y S Kim
- Department of Transplantation Surgery and Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - M S Park
- Division of Pulmonology and Critical Care Medicine, Department of Internal Medicine, Institute of Chest Diseases, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - S Y Kim
- Division of Pulmonology and Critical Care Medicine, Department of Internal Medicine, Institute of Chest Diseases, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Y N Yoon
- Department of Cardiothoracic Surgery, Cardiovascular Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - S Kang
- Division of Cardiology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - S J Jeong
- Division of Infectious Disease, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - J Y Choi
- Division of Infectious Disease, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Y G Song
- Division of Infectious Disease, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - J M Kim
- Division of Infectious Disease, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
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Lee JS, An JM, Kang EA, Han YM, Kim YS, Lee HJ, Kim KJ, Surh YJ, Hahm KB. Host nuclear factor erythroid 2-related factor-2 defense system determines the outcome of dextran sulfate sodium-induced colitis in mice. J Physiol Pharmacol 2019; 69. [PMID: 30683827 DOI: 10.26402/jpp.2018.5.10] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 10/30/2018] [Indexed: 11/03/2022]
Abstract
Administration of dextran sulfate sodium (DSS) in drinking water led to significant bout of colitis simulating ulcerative colitis of human. However, colitis usually developed 5 - 7 days after DSS administration. Therefore, we hypothesized host defense system might protect colitis up to 5 days of DSS administration. 2.5% DSS-induced colitis were administered to C57BL/6 mice and sequential measurements of pathology, cyclooxygenase-2 (COX-2), nuclear factor-κB (NF-κB), heme oxygenase-1 (HO-1), NADPH quinone oxidoreductase-1 (NQO1), γ-glutamylcysteine synthetase (γ-GCS), nuclear factor erythroid 2-related factor-2 (Nrf2), and keap1 were done at 2, 6, 12, 24, 48, 96, 120, and 168 hour of DSS administration, respectively. DSS-induced colitis was repeated in either COX-2-/- or Nrf2-/- mice. On serial pathological analysis, significant colitis was noted after 120 h of DSS administration, during which both activations of COX-2/NF-κB and HO-1/Nrf2 were noted. Nrf2 activations after keap1 inactivation led to significant increases in HO-1 after 168 hours of DSS administration, when NF-κB nuclear translocation was noted. Significantly attenuated colitis was noted in DSS-challenged COX-2-/- mice, in which the levels of HO-1 were significantly decreased compared to DSS-challenged WT littermates (p < 0.01), while the levels of NQO1 were significantly increased. On DSS administration to Nrf2-/- mice, colitis was significantly aggravated (p < 0.01), in which the expressions of COX-2 as well as expressions of HO-1 and γ-GCS were significantly increased (p < 0.01). Reciprocal activations of inflammatory and antioxidative defense signaling after DSS administration might be prerequisite to make intestinal homeostasis and host defense Nrf2 system can determine colitis.
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Affiliation(s)
- J S Lee
- Jeonju University, College of Biotechnology and Functional Foods, Jeonju, Korea
| | - J M An
- CHA Cancer Prevention Research Center, CHA Bio Complex, Pangyo, Korea
| | - E A Kang
- CHA Cancer Prevention Research Center, CHA Bio Complex, Pangyo, Korea
| | - Y M Han
- CHA Cancer Prevention Research Center, CHA Bio Complex, Pangyo, Korea
| | - Y S Kim
- Department of Biochemistry and Molecular Biology, Hanyang University School of Medicine, Seoul, Korea
| | - H J Lee
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon, Korea
| | - K-J Kim
- Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Y J Surh
- College of Pharmacy, Seoul National University, Seoul, Korea
| | - K-B Hahm
- CHA Cancer Prevention Research Center, CHA Bio Complex, Pangyo, Korea. .,Digestive Disease Center, CHA University Bundang Medical Center, Seongnam, Korea
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Kim YS, Kim Y, Choi JW, Oh HE, Lee JH. Genetic variants and risk of prostate cancer using pathway analysis of a genome-wide association study. Neoplasma 2019; 63:629-34. [PMID: 27268928 DOI: 10.4149/neo_2016_418] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
This study explored candidate causal single nucleotide polymorphisms (SNPs) to clarify the biological mechanism of prostate cancer (PCa). Identify candidate Causal SNPs and Pathways (ICSNPathway) analysis was applied using a PCa genome-wide association study (GWAS) dataset that included 473,736 SNPs in 1151 cases of PCa and 1156 controls of European ancestry. Five candidate causal SNPs, three candidate causal genes, and two candidate causal pathways were identified using integrating linkage disequilibrium analysis, functional SNP annotation, and pathway-based analysis. The ICSNPathway analysis suggested three hypothetical mechanisms of PCa. The first was rs13112390, rs13112358, rs2048074 to nei-like DNA glycosylase 3 (NEIL3) gene to damaged DNA binding. The second was rs3087386 to REV1, DNA directed polymerase (REV1) gene to damaged DNA binding. The third was rs1063134 to potassium channel, inwardly rectifying subfamily J, member 4 (KCNJ4) gene to inward rectifier potassium channel activity.
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Lee Y, Kim SJ, Kim YS, Kim H, Lee DK, Lee J, Go TH, Cha YS. The usefulness of the SOFA and APACHE II scoring systems for the early prediction of mortality in patients with dapsone poisoning. Hum Exp Toxicol 2018; 38:280-287. [DOI: 10.1177/0960327118806647] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The rate of mortality from dapsone poisoning is high because of the long absorption half-life of dapsone. This study aimed to evaluate the usefulness of the sequential organ failure assessment (SOFA) and acute physiology and chronic health evaluation II (APACHE II) scoring systems for the early prediction of mortality in patients with dapsone poisoning. This is a retrospective and observational study of consecutive patients diagnosed with dapsone poisoning. The SOFA and APACHE II scores were obtained within the first 24 h of admission. Patients were divided into survivor and non-survivor groups. In total, 106 patients were included. The SOFA scores of the survivor and non-survivor groups were 1 (0–8) and 4 (1–10), respectively ( p < 0.001). The APACHE II scores of the survivor and non-survivor groups were 9 (1–25) and 14 (3–23), respectively ( p < 0.001). Based on these scores and in-hospital mortality cases, the standardized mortality ratios for the APACHE II and SOFA were 1.00 (95% confidence interval (CI): 0.64–1.48) and 1.00 (95% CI: 0.64–1.49), respectively. In the model adjusted for clinically important variables and variables with significant differences between the survivor and non-survivor groups, the area under the curve of the SOFA (0.907; 95% CI: 0.834–0.955) was significantly higher than that of the APACHE II (0.793; 95% CI: 0.703–0.867) ( p = 0.008). The SOFA and APACHE II score systems had good discrimination and satisfactory calibration performance in patients with dapsone poisoning. However, the SOFA score was a more useful method in predicting mortality than the APACHE II score.
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Affiliation(s)
- Y Lee
- Department of Emergency Medicine, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - SJ Kim
- Department of Emergency Medicine, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - YS Kim
- Department of Emergency Medicine, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - H Kim
- Department of Emergency Medicine, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - DK Lee
- Department of Emergency Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - J Lee
- Department of Emergency Medicine, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - TH Go
- Center of Biomedical Data Science, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - YS Cha
- Department of Emergency Medicine, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
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49
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Lee SG, Yoo JW, Kim YS. Calibration methods of X-ray imaging crystal spectrometer on KSTAR. Rev Sci Instrum 2018; 89:10F108. [PMID: 30399801 DOI: 10.1063/1.5034023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Accepted: 06/06/2018] [Indexed: 06/08/2023]
Abstract
The detailed calibration methods and procedure for the X-ray imaging crystal spectrometer (XICS) in the Korea Superconducting Tokamak Advanced Research device are investigated. A cross comparison from two different diagnostics including the XICS and charge exchange spectrometer is the best option, in particular, when both systems can be operated simultaneously.
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Affiliation(s)
- S G Lee
- National Fusion Research Institute, Daejeon, South Korea
| | - J W Yoo
- National Fusion Research Institute, Daejeon, South Korea
| | - Y S Kim
- National Fusion Research Institute, Daejeon, South Korea
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50
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Yoon YE, Lee HH, Na JC, Huh KH, Kim MS, Kim SI, Kim YS, Han WK. Impact of Cigarette Smoking on Living Kidney Donors. Transplant Proc 2018; 50:1029-1033. [PMID: 29731061 DOI: 10.1016/j.transproceed.2018.02.050] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 02/17/2018] [Accepted: 02/22/2018] [Indexed: 01/23/2023]
Abstract
BACKGROUND Smoking is known to result in a decline in renal allograft function and survival of recipients; however, the effect of smoking on living kidney donors remains unknown. In this study we evaluated the impact of cigarette smoking on renal function of kidney donors. METHODS Among 1056 donors who underwent nephrectomy, 612 completed the 6-month follow-up protocol and were enrolled in the study. The association of smoking status, including pack-years smoking history, and postoperative renal function was evaluated. RESULTS Among donors, 68.1% had never smoked, 8% were former smokers, and 23.9% were current smokers. Donors who never smoked were older than former and current smokers (42.3 ± 11.8, 41.9 ± 11.1, and 38.3 ± 10.9 years, respectively; P < .001). There was no difference in preoperative renal function between groups; however, postoperative estimated glomerular filtration rate (eGFR) was lower in former and current smokers than in those who never smoked (64.6 ± 13.8, 64.7 ± 12.3, and 67.8 ± 13.1 mL/min/1.73 m2, respectively; P = .023). In former and current smokers, pack-years smoking history was negatively associated with pre- and postoperative eGFR (r = -0.305 and -0.435, P < .001), and correlated with postoperative percent eGFR decline (r = 0.248, P < .001). Smoking history was associated with postoperative development of chronic kidney disease (CKD). Especially in former smokers, a smoking history of more than 12 pack-years was strongly associated with development of CKD (odds ratio = 7.5, P = .003). CONCLUSION Even if they no longer smoke, donors with a smoking history require close observation due to increased risk of CKD development after kidney donation. A detailed pack-years smoking history should be obtained, and smoking cessation strategies should be implemented in kidney donors.
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Affiliation(s)
- Y E Yoon
- Department of Urology, Hanyang University College of Medicine, Seoul, Korea
| | - H H Lee
- Department of Urology, National Health Insurance Service Ilsan Hospital, Goyang, Korea
| | - J C Na
- Department of Urology, Urological Science Institute, Yonsei University College of Medicine, Seoul, Korea
| | - K H Huh
- Department of Transplantation Surgery, Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - M S Kim
- Department of Transplantation Surgery, Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - S I Kim
- Department of Transplantation Surgery, Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Y S Kim
- Department of Transplantation Surgery, Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - W K Han
- Department of Urology, Urological Science Institute, Yonsei University College of Medicine, Seoul, Korea.
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