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Kim JY, Hong JY, Kim SM, Ryu KH, Kim DS, Lee SH, Na JH, Cho HH, Yu J, Lee J. Socio-economic factors and medical conditions affecting regular stomach cancer screening in Korea: a retrospective longitudinal study using national public health data for 11 years. Public Health 2024; 227:70-77. [PMID: 38128357 DOI: 10.1016/j.puhe.2023.11.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 11/03/2023] [Accepted: 11/15/2023] [Indexed: 12/23/2023]
Abstract
OBJECTIVE This study aimed to explore socio-economic factors and medical conditions that affect regular stomach cancer (SC) screening among Korean adults. STUDY DESIGN This was a retrospective observational study. METHODS Study subjects were 5545 adults aged ≥40 years who participated in the 2007-2012 Korean National Health and Nutrition Examination Survey and were followed up to year 2017 based on data linking to the Korean National Health Insurance Service and Korean Health Insurance Review and Assessment. Socio-economic factors included sex, age, residential area, education, occupation, marital status, disability, public and private health insurance, service through local public health organizations, history of cancer except for SC, and family history of SC. Medical factors included six gastric lesions with the possibility of facilitating SC screening, including benign gastric neoplasm, chronic atrophic gastritis, gastric polyp, Helicobacter pylori infection, intestinal metaplasia, and peptic ulcers. The outcome was adherence to SC screening, which was divided into non-adherence, irregular adherence, and regular adherence. RESULTS After adjusting for the effects of socio-economic factors, multivariate ordinal logistic regression revealed that participants with a history of four types of gastric lesions were more likely to regularly participate in SC screening: chronic atrophic gastritis (odds ratio [OR] 1.567; 95% confidence interval [CI] = 1.276-1.923), gastric polyps (OR 1.565; 95% CI = 1.223-2.003), H. pylori infection (OR 1.637; 95% CI = 1.338-2.003), and peptic ulcer (OR 2.226; 95% CI 1.750-2.831). CONCLUSIONS To improve participation in SC screening, it is necessary to implement personalized strategies for individuals at risk for gastric cancer in addition to population-based strategies for vulnerable groups.
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Affiliation(s)
- J-Y Kim
- Department of Biomedical Informatics, College of Medicine, Konyang University, Daejeon, South Korea; Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Konyang University, Daejeon, South Korea
| | - J Y Hong
- Department of Biomedical Informatics, College of Medicine, Konyang University, Daejeon, South Korea
| | - S M Kim
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Konyang University College of Medicine, 158, Gwanjeodong-ro, Seo-gu, Daejeon, South Korea.
| | - K H Ryu
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Konyang University College of Medicine, 158, Gwanjeodong-ro, Seo-gu, Daejeon, South Korea
| | - D S Kim
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Konyang University College of Medicine, 158, Gwanjeodong-ro, Seo-gu, Daejeon, South Korea
| | - S H Lee
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Konyang University College of Medicine, 158, Gwanjeodong-ro, Seo-gu, Daejeon, South Korea
| | - J H Na
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Konyang University College of Medicine, 158, Gwanjeodong-ro, Seo-gu, Daejeon, South Korea
| | - H H Cho
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Konyang University College of Medicine, 158, Gwanjeodong-ro, Seo-gu, Daejeon, South Korea
| | - J Yu
- Medical Data Research group, Konyang University Hospital, Daejeon, South Korea
| | - J Lee
- Medical Data Research group, Konyang University Hospital, Daejeon, South Korea
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Pyo JH, Lee SY, Lee IJ, Kim SM, Kim JW. Beneficial Role of Multi-Disciplinary Treatment for Anaplastic Thyroid Cancer with Initial Distant Metastasis. Int J Radiat Oncol Biol Phys 2023; 117:e616-e617. [PMID: 37785850 DOI: 10.1016/j.ijrobp.2023.06.1996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Anaplastic thyroid cancer (ATC) is a rare, highly aggressive tumor, with median survival around 5 months. Approximately half of the ATC patients presents with distant metastases at diagnosis, showing even more devastating prognosis, yet no outcome analysis had been reported. In this study, we aim to evaluate the clinical outcome of M1 ATC patients, and to define the group of patients who would benefit from local treatment based on multi-disciplinary approach. MATERIALS/METHODS A total of 133 histology-confirmed ATC patients underwent protocol-based multidisciplinary treatment including surgery and chemoradiotherapy (CRT) between May 2016 and January 2022. Patients received intensity-modulated radiotherapy of 30 fractions concurrently with paclitaxel on days 1, 8 and 15 every 4 weeks, and lenvatinib was added upon progression. After 18 fractions of CRT, interim response analysis using modified RECIST was conducted for adaptive treatment planning. We reviewed 58 patients with distant metastasis at diagnosis (stage IVC). Overall survival (OS) and progression-free survival (PFS) were measured from the day of diagnosis. RESULTS Most common metastatic site was lung (91.4%), followed by bone (31.0%) and brain (5.2%). Lenvatinib was added for 35 patients after any sign of progression. Fourteen patients received upfront surgery (16 debulking and 5 total) followed by adjuvant CRT in 16 patients. Thirty-one patients received upfront CRT with 2 patients receiving total resection after sufficient down-staging. Six (10%) patients could not complete radiotherapy but continued receiving systemic treatment. The median follow-up was 5.9 months. The median and 1-year OS were 6.2 months and 20.5%, and PFS were 3.7 months and 3.5%. Total RT dose over 60 Gy significantly improved median OS (7.5 vs 4.1 months, p = 0.012) and median PFS (4.4 vs 3.0, p = 0.010). Patients with less than 10 initial metastatic tumors showed better median OS (9.1 vs 4.6 months, p = 0.002) but not PFS (5.1 vs 3.6, p = 0.485). At interim analysis, early response (CR, PR and SD) of primary tumor was not associated with survival, while progression of distant metastases showed significantly worse median OS (9.8 vs 4.6 months, p = 0.001). More than 10 metastatic tumors (HR 2.73, 95% CI 1.32-5.66) and stable metastasis at interim analysis (HR 2.39, 95% CI 1.04-5.48) remained as significant factor in the multivariable cox regression analysis. Median OS and PFS of patients with less than 10 metastases showing no progression at interim analysis were 9.1 months, and 5.1 months. CONCLUSION Local treatment combined with chemotherapy for M1 ATC patients showed outcome comparable to those of non-metastatic ATC results. Active local treatment should be considered especially for patients with less than 10 metastases, and patients without distant progression in early response evaluation.
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Affiliation(s)
- J H Pyo
- Department of Radiation Oncology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea, Republic of (South) Korea
| | - S Y Lee
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea, Republic of (South) Korea
| | - I J Lee
- Department of Radiation Oncology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea, Republic of (South) Korea
| | - S M Kim
- Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea, Republic of (South) Korea
| | - J W Kim
- Department of Radiation Oncology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea, Republic of (South) Korea
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Kim SM, Park S, Hwang SH, Lee EY, Kim JH, Lee GS, Lee G, Chang DH, Lee JG, Hwang J, Lee Y, Kyung M, Kim EK, Kim JH, Kim TH, Moon JH, Kim BC, Ko G, Kim SY, Ryu JH, Lee JS, Lee CH, Kim JY, Kim S, Lee WJ, Kim MH. Secreted Akkermansia muciniphila threonyl-tRNA synthetase functions to monitor and modulate immune homeostasis. Cell Host Microbe 2023; 31:1021-1037.e10. [PMID: 37269833 DOI: 10.1016/j.chom.2023.05.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [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: 07/23/2022] [Revised: 03/23/2023] [Accepted: 05/09/2023] [Indexed: 06/05/2023]
Abstract
Commensal bacteria are critically involved in the establishment of tolerance against inflammatory challenges, the molecular mechanisms of which are just being uncovered. All kingdoms of life produce aminoacyl-tRNA synthetases (ARSs). Thus far, the non-translational roles of ARSs have largely been reported in eukaryotes. Here, we report that the threonyl-tRNA synthetase (AmTARS) of the gut-associated bacterium Akkermansia muciniphila is secreted and functions to monitor and modulate immune homeostasis. Secreted AmTARS triggers M2 macrophage polarization and orchestrates the production of anti-inflammatory IL-10 via its unique, evolutionary-acquired regions, which mediates specific interactions with TLR2. This interaction activates the MAPK and PI3K/AKT signaling pathways, which converge on CREB, leading to an efficient production of IL-10 and suppression of the central inflammatory mediator NF-κB. AmTARS restores IL-10-positive macrophages, increases IL-10 levels in the serum, and attenuates the pathological effects in colitis mice. Thus, commensal tRNA synthetases can act as intrinsic mediators that maintain homeostasis.
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Affiliation(s)
- Su-Man Kim
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea; Department of Biology Education, Chonnam National University, Gwangju 61186, Korea
| | - Shinhye Park
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea; Department of Microbiology and Molecular Biology, Chungnam National University, Daejeon 34134, Korea
| | - Seung-Ho Hwang
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea
| | - Eun-Young Lee
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea
| | - Jong-Hwan Kim
- Korean Bioinformation Center, KRIBB, Daejeon 34141, Korea
| | - Ga Seul Lee
- Core Research Facility & Analysis Center, KRIBB, Daejeon 34141, Korea; College of Pharmacy, Chungbuk National University, Cheongju 28160, Chungbuk, Korea
| | - Giljae Lee
- Department of Environmental Health Sciences, Graduate School of Public Health, Seoul National University, Seoul 08826, Korea
| | - Dong-Ho Chang
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea
| | - Jae-Geun Lee
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea
| | - Jungwon Hwang
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea
| | - Youngjin Lee
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea
| | - Minsoo Kyung
- National Creative Research Initiative Center for Hologenomics and School of Biological Sciences, Seoul National University, Seoul 08826, Korea
| | - Eun-Kyoung Kim
- National Creative Research Initiative Center for Hologenomics and School of Biological Sciences, Seoul National University, Seoul 08826, Korea
| | - Jae-Hoon Kim
- Laboratory Animal Resource Center, KRIBB, Daejeon 34141, Korea
| | - Tae-Hwan Kim
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea; College of Veterinary Medicine, Chungnam National University, Daejeon 34134, Korea
| | - Jeong Hee Moon
- Core Research Facility & Analysis Center, KRIBB, Daejeon 34141, Korea
| | - Byoung-Chan Kim
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea; HealthBiome, Inc., Bioventure Center, Daejeon 34141, Korea
| | - GwangPyo Ko
- Department of Environmental Health Sciences, Graduate School of Public Health, Seoul National University, Seoul 08826, Korea; Center for Human and Environmental Microbiome, Institute of Health and Environment, Seoul National University, Seoul 08826, Korea; KoBioLabs, Inc., Seoul 08826, Korea; Bio-MAX/N-Bio, Seoul National University, Seoul 08826, Korea
| | - Seon-Young Kim
- Korean Bioinformation Center, KRIBB, Daejeon 34141, Korea; Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon 34113, Korea
| | - Ji-Hwan Ryu
- Severance Biomedical Science Institute and Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Jeong-Soo Lee
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea; Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon 34113, Korea
| | - Chul-Ho Lee
- Laboratory Animal Resource Center, KRIBB, Daejeon 34141, Korea; Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon 34113, Korea
| | - Jeong-Yoon Kim
- Department of Microbiology and Molecular Biology, Chungnam National University, Daejeon 34134, Korea
| | - Sunghoon Kim
- Institute for Artificial Intelligence and Biomedical Research, College of Pharmacy and College of Medicine, Gangnam Severance Hospital, Yonsei University, Incheon 21983, Republic of Korea
| | - Won-Jae Lee
- National Creative Research Initiative Center for Hologenomics and School of Biological Sciences, Seoul National University, Seoul 08826, Korea
| | - Myung Hee Kim
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea.
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Choi SK, Chung HS, Ko HS, Gen Y, Kim SM, Shin JE, Kil KC, Kim YH, Wie JH, Jo YS. Hemorrhagic morbidity in nulliparous patients with placenta previa without placenta accrete spectrum disorders. Niger J Clin Pract 2023; 26:432-437. [PMID: 37203107 DOI: 10.4103/njcp.njcp_456_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Background Placental adhesion spectrum (PAS) is a disease in which the trophoblast invades the myometrium, and is a well-known high-risk condition associated with placental previa. Aim The morbidity of nulliparous women with placenta previa without PAS disorders is unknown. Patients and Methods The data from nulliparous women who underwent cesarean delivery were collected retrospectively. The women were dichotomized into malpresentation (MP) and placenta previa groups. The placenta previa group was categorized into previa (PS) and low-lying (LL) groups. When the placenta covers the internal cervical os, it is called placenta previa, when the placenta is near the cervical os, it is called the low-lying placenta. Their maternal hemorrhagic morbidity and neonatal outcomes were analyzed and adjusted using multivariate analysis based on univariate analysis. Results A total of 1269 women were enrolled: 781 women in the MP group and 488 women in the PP-LL group. Regarding packed red blood cell transfusion, PP and LL had adjusted odds ratio (aOR) of 14.7 (95% confidence interval (CI): 6.6 - 32.5), and 11.3 (95% CI: 4.9 - 26) during admission, and 51.2 (95% CI: 22.1 - 122.7) and 10.3 (95% CI: 3.9 - 26.6) during operation, respectively. For intensive care unit admission, PS and LL had aOR of 15.9 (95% CI: 6.5 - 39.1) and 3.5 (95% CI: 1.1 - 10.9), respectively. No women had cesarean hysterectomy, major surgical complications, or maternal death. Conclusion Despite placenta previa without PAS disorders, maternal hemorrhagic morbidity was significantly increased. Thus, our results highlight the need for resources for those women with evidence of placenta previa including a low-lying placenta, even if those women do not meet PAS disorder criteria. In addition, placenta previa without PAS disorder was not associated with critical maternal complications.
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Affiliation(s)
- S K Choi
- Department of Obstetrics and Gynaecology, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - H S Chung
- Department of Anaesthesiology and Pain Medicine, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - H S Ko
- Department of Obstetrics and Gynaecology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Y Gen
- Department of Obstetrics and Gynaecology, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - S M Kim
- Department of Obstetrics and Gynaecology, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - J E Shin
- Department of Obstetrics and Gynaecology, Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - K C Kil
- Department of Obstetrics and Gynaecology, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Y H Kim
- Department of Obstetrics and Gynaecology, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - J H Wie
- Department of Obstetrics and Gynaecology, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Y S Jo
- Department of Obstetrics and Gynaecology, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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Lee EY, Kim SM, Hwang JH, Jang SY, Park S, Choi S, Lee GS, Hwang J, Moon JH, Fox PL, Kim S, Lee CH, Kim MH. Glutamyl-prolyl-tRNA synthetase 1 coordinates early endosomal anti-inflammatory AKT signaling. Nat Commun 2022; 13:6455. [PMID: 36309524 PMCID: PMC9617928 DOI: 10.1038/s41467-022-34226-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 10/12/2022] [Indexed: 12/25/2022] Open
Abstract
The AKT signaling pathway plays critical roles in the resolution of inflammation. However, the underlying mechanisms of anti-inflammatory regulation and signal coordination remain unclear. Here, we report that anti-inflammatory AKT signaling is coordinated by glutamyl-prolyl-tRNA synthetase 1 (EPRS1). Upon inflammatory activation, AKT specifically phosphorylates Ser999 of EPRS1 in the cytoplasmic multi-tRNA synthetase complex, inducing release of EPRS1. EPRS1 compartmentalizes AKT to early endosomes via selective binding to the endosomal membrane lipid phosphatidylinositol 3-phosphate and assembles an AKT signaling complex specific for anti-inflammatory activity. These events promote AKT activation-mediated GSK3β phosphorylation, which increase anti-inflammatory cytokine production. EPRS1-deficient macrophages do not assemble the early endosomal complex and consequently exacerbate inflammation, decreasing the survival of EPRS1-deficient mice undergoing septic shock and ulcerative colitis. Collectively, our findings show that the housekeeping protein EPRS1 acts as a mediator of inflammatory homeostasis by coordinating compartment-specific AKT signaling.
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Affiliation(s)
- Eun-Young Lee
- grid.249967.70000 0004 0636 3099Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141 Korea
| | - Su-Man Kim
- grid.249967.70000 0004 0636 3099Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141 Korea
| | - Jung Hwan Hwang
- grid.249967.70000 0004 0636 3099Laboratory Animal Resource Center, KRIBB, Daejeon, 34141 Korea
| | - Song Yee Jang
- grid.249967.70000 0004 0636 3099Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141 Korea ,grid.249967.70000 0004 0636 3099Core Research Facility & Analysis Center, KRIBB, Daejeon, 34141 Korea
| | - Shinhye Park
- grid.249967.70000 0004 0636 3099Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141 Korea
| | - Sanghyeon Choi
- grid.249967.70000 0004 0636 3099Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141 Korea
| | - Ga Seul Lee
- grid.249967.70000 0004 0636 3099Core Research Facility & Analysis Center, KRIBB, Daejeon, 34141 Korea
| | - Jungwon Hwang
- grid.249967.70000 0004 0636 3099Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141 Korea
| | - Jeong Hee Moon
- grid.249967.70000 0004 0636 3099Core Research Facility & Analysis Center, KRIBB, Daejeon, 34141 Korea
| | - Paul L. Fox
- grid.239578.20000 0001 0675 4725Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH 44195 USA
| | - Sunghoon Kim
- grid.15444.300000 0004 0470 5454Medicinal Bioconvergence Research Center, College of Pharmacy and College of Medicine, Gangnam Severance Hospital, Yonsei University, Incheon, 21983 Korea
| | - Chul-Ho Lee
- grid.249967.70000 0004 0636 3099Laboratory Animal Resource Center, KRIBB, Daejeon, 34141 Korea
| | - Myung Hee Kim
- grid.249967.70000 0004 0636 3099Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141 Korea
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Lee YH, Kim SM, Kim EK, Park SJ, Lee SC, Park SW, Jeong DS, Chang SA. Pattern of pericardial calcification determines the mid-term postoperative outcome after pericardiectomy in chronic constrictive pericarditis. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Background/Introduction
Although pericardiectomy is an effective treatment of constrictive pericarditis (CP), clinical outcome is not always successful. Pericardial calcification is a unique finding in CP. However, the amount and localization of calcification vary. Computer tomography (CT) can visualize the pericardial calcification with high sensitivity and provide the anatomical assessment.
Purpose
We investigated that how the pattern and amount of pericardial calcification affect the mid-term postoperative outcome after pericardiectomy in CP.
Methods
All of the patients who underwent total pericardiectomy in our hospital from 2010 to 2020 were derived from electrical medical records (n=105). Among them, preoperative CT scans (non-gated non-contrast) of 98 patients were available and, thus, 98 consecutive patients were finally analyzed. Medical records were reviewed in a retrospective manner. Cardiovascular event is defined as cardiovascular death or hospitalization associated with a heart failure symptom and all cause event is defined as all events that require admission. CT scan was analyzed by Aquarius Workstation, and the volume and localization pattern of pericalcification were derived. Pericardium calcium score was given as an Agatston score.
Results
Of 98 patients, 25 (25.5%) patients were hospitalized with heart failure symptom after pericardiectomy. Median follow up duration of patients is 172 weeks. A group with cardiovascular event had higher NYHA grade (P<0.001), lower calcium volume (P=0.004), and lower calcium score (P=0.01). Multivariate cox proportional analysis showed that high ln(calcium score) before pericardiectomy was dependent predictor of cardiovascular event (hazard ratio, 0.90; P=0.04) and all cause event (hazard ratio, 0.91, P=0.04) after pericardiectomy. When we set the cut off value at 7.22, based on ROC curve, there was a significant difference in cardiovascular event between the groups divided by this cutoff value in Kaplan-Meier curve (P=0.002) and multivariate cox proportional analysis (P=0.04). In the subgroup analysis, myocardium invasion and circumferential calcification were more common in the high calcium score group. Idiopathic & tuberculosis pericarditis were more associated with high calcium score group and post-operative pericarditis, other reasons (infection, radiation, etc) were more associated with low calcium group.
Conclusion
Low burden of pericardial calcification was associated high rate of mid-term clinical event after pericardiectomy CP. Preoperative evaluation of pericardial calcification pattern can be used as predictor of postoperative outcomes.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- Y H Lee
- Sungkyunkwan University School of Medicine , Seoul , Korea (Republic of)
| | - S M Kim
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Department of Radiology , Seoul , Korea (Republic of)
| | - E K Kim
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - S J Park
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - S C Lee
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - S W Park
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - D S Jeong
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Department of Thoracic and Cardiovascular Surgery , Seoul , Korea (Republic of)
| | - S A Chang
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
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Bak M, Choi KH, Kim JH, Park TK, Kim EK, Kim SM, Choi SH, Park SJ. Risk factors and clinical effects of late leaflet thrombosis after transcatheter aortic valve replacement. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
As the indications for trans-catheter aortic valve replacement (TAVR) expand, it is expected that the number of TAVR patients would increase and the follow-up duration would be longer. It is known that the incidence of leaflet thrombosis is higher in TAVR than in surgical aortic valve replacement (SAVR), but not much is known about the risk factors of late leaflet thrombosis in TAVR.
Aim
Therefore, in this study, the incidence and risk factors of late leaflet thrombosis at late term after TAVR and the effect on clinical course of late leaflet thrombosis would be investigated.
Method
There were 176 patients undergone TAVR from January 2015 to October 2020 in one tertiary hospital of south korea. 94 patients had follow-up cardiovascular computed tomography (CT) between 3 months and 2 years after TAVR. Among 94 patients, late leaflet thrombosis was discovered at 20 patients, and risk factors were analyzed by comparing clinical factors, echocardiographic and cardiovascular CT information, and angiographic data between the group with and without late leaflet thrombosis. And the difference in aortic valve hemodynamics between the group with and without leaflet thrombosis was examined and clinical outcomes were compared. Clinical outcome was defined as the composite of all-cause death, stroke, heart failure (HF) admission, redo-aortic valve (AV) replacement and major bleeding after detection of late leaflet thrombosis.
Results
Indexed mean sinus of Valsalva diameter, AV calcium score and post procedure estimated orifice area (EOA) had predictability of late leaflet thrombosis with AUC value of 0.670 (95% CI [0.546–0.795], p value = 0.020), AUC value of 0.698 (95% CI [0.544–0.851], p value = 0.012) and AUC value of 0.665 (95 percent CI [0.548–0.782], p value = 0.031), respectively (Figure 1).
In echocardiography performed at the time of follow-up CT, AV max velocity and AV mean pressure gradient were higher in thrombosis group and EOA and Doppler velocity index were lower in thrombosis group than in no thrombosis group within normal range (Figure 2). Clinical outcome was not significant different between the two groups (log rank p value = 0.560).
Conclusion
Larger indexed sinus of Valsalva diameter, higher AV calcium score and smaller post procedure AV EOA were risk factors for late leaflet thrombosis after TAVR. Subclinical late leaflet thrombosis have a benign course when properly managed.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- M Bak
- Samsung Medical Center, Division of Cardiology, Cardiovascular Imaging Center, Heart Vascular Stroke Institute , Seoul , Korea (Republic of)
| | - K H Choi
- Samsung Medical Center , Seoul , Korea (Republic of)
| | - J H Kim
- Samsung Medical Center, Division of Cardiology, Cardiovascular Imaging Center, Heart Vascular Stroke Institute , Seoul , Korea (Republic of)
| | - T K Park
- Samsung Medical Center , Seoul , Korea (Republic of)
| | - E K Kim
- Samsung Medical Center, Division of Cardiology, Cardiovascular Imaging Center, Heart Vascular Stroke Institute , Seoul , Korea (Republic of)
| | - S M Kim
- Samsung Medical Center, Department of Radiology, Cardiovascular Imaging Center, Heart Vascular Stroke Institute , Seoul , Korea (Republic of)
| | - S H Choi
- Samsung Medical Center , Seoul , Korea (Republic of)
| | - S J Park
- Samsung Medical Center, Division of Cardiology, Cardiovascular Imaging Center, Heart Vascular Stroke Institute , Seoul , Korea (Republic of)
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8
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Choi S, Choi J, Cheon S, Song J, Kim SY, Kim JE, Nam DH, Manzar G, Kim SM, Kang HS, Kim KK, Jeong SH, Lee JH, Park EK, Lee M, Lee HA, Kim KS, Park HJ, Oh WK, Park C, Lee CH, Kim EM. Pulmonary fibrosis model using micro-CT analyzable human PSC-derived alveolar organoids containing alveolar macrophage-like cells. Cell Biol Toxicol 2022; 38:557-575. [PMID: 35267148 PMCID: PMC8907399 DOI: 10.1007/s10565-022-09698-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 01/26/2022] [Indexed: 12/14/2022]
Abstract
Human lung organoids (hLOs) are useful for disease modelling and drug screening. However, a lack of immune cells in hLOs limits the recapitulation of in vivo cellular physiology. Here, we generated hLOs containing alveolar macrophage (AMφ)–like cells derived from pluripotent stem cells (PSC). To bridge hLOs with advanced human lung high-resolution X-ray computed tomography (CT), we acquired quantitative micro-CT images. Three hLO types were observed during differentiation. Among them, alveolar hLOs highly expressed not only lung epithelial cell markers but also AMφ-specific markers. Furthermore, CD68+ AMφ-like cells were spatially organized on the luminal epithelial surface of alveolar hLOs. Bleomycin-treated alveolar hLOs showed upregulated expression of fibrosis-related markers and extracellular matrix deposits in the alveolar sacs. Alveolar hLOs also showed structural alterations such as excessive tissue fraction under bleomycin treatment. Therefore, we suggest that micro-CT analyzable PSC-derived alveolar hLOs are a promising in vitro model to predict lung toxicity manifestations, including fibrosis.
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Affiliation(s)
- Seri Choi
- Department of Predictive Toxicology, Korea Institute of Toxicology, 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea.,Korea Bioactive Natural Material Bank, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, 08826, Republic of Korea
| | - Jiwoong Choi
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, School of Medicine, University of Kansas, Kansas City, KS, 66160, USA
| | - Seongmin Cheon
- School of Biological Sciences and Technology, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Jihong Song
- Department of Internal Medicine, Santa Clara Valley Medical Center, San Jose, CA, 95128, USA
| | - Seung-Yeon Kim
- Department of Predictive Toxicology, Korea Institute of Toxicology, 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea.,Department of Biochemistry, College of Natural Sciences, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Ji-Eun Kim
- Department of Predictive Toxicology, Korea Institute of Toxicology, 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea
| | - Dae-Hwan Nam
- Immune Research Institute, Seegene Medical Foundation, Seoul, 04805, Republic of Korea
| | - Gohar Manzar
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX, 77025, USA
| | - Su-Man Kim
- School of Biological Sciences and Technology, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Hyung-Sik Kang
- School of Biological Sciences and Technology, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Kee K Kim
- Department of Biochemistry, College of Natural Sciences, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Sang Hoon Jeong
- Medical Science Research Center, Ansan Hospital, Korea University College of Medicine, 123, Jeokgeum-ro, Danwon-gu, Ansan-si, Gyeonggi, 15355, Republic of Korea
| | - Ju-Han Lee
- Department of Pathology, Ansan Hospital, Korea University College of Medicine, 123, Jeokgeum-ro, Danwon-gu, Ansan-si, Gyeonggi, 15355, Republic of Korea
| | - Eun-Kee Park
- Department of Medical Humanities and Social Medicine, College of Medicine, Kosin University, Busan, 49267, Republic of Korea
| | - Minseob Lee
- Department of Radiology, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, 03080, Republic of Korea
| | - Hyang-Ae Lee
- Department of Predictive Toxicology, Korea Institute of Toxicology, 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea
| | - Ki-Suk Kim
- R&D Center for Advanced Pharmaceuticals and Evaluation, Korea Institute of Toxicology, 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea
| | - Han-Jin Park
- Department of Predictive Toxicology, Korea Institute of Toxicology, 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea
| | - Won Keun Oh
- Korea Bioactive Natural Material Bank, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, 08826, Republic of Korea
| | - Chungoo Park
- School of Biological Sciences and Technology, Chonnam National University, Gwangju, 61186, Republic of Korea.
| | - Chang Hyun Lee
- Department of Radiology, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, 03080, Republic of Korea.
| | - Eun-Mi Kim
- Department of Predictive Toxicology, Korea Institute of Toxicology, 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea.
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Ji KY, Kim SM, Yee SM, Kim MJ, Ban YJ, Kim EM, Lee EH, Choi HR, Yun H, Lee CW, Yun CH, Lee CJ, Lee HB, Kang HS. Cyclophilin A is an endogenous ligand for the triggering receptor expressed on myeloid cells-2 (TREM2). FASEB J 2021; 35:e21479. [PMID: 33710680 DOI: 10.1096/fj.202002325rr] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 02/10/2021] [Accepted: 02/12/2021] [Indexed: 11/11/2022]
Abstract
Triggering receptor expressed on myeloid cells 2 (TREM2) is a cell surface receptor expressed on macrophages, microglial cells, and pre-osteoclasts, and that participates in diverse cellular function, including inflammation, bone homeostasis, neurological development, and coagulation. In spite of the indispensable role of the TREM2 protein in the maintenance of immune homeostasis and osteoclast differentiation, the exact ligand for TREM2 has not yet been identified. Here, we report a putative TREM2 ligand which is secreted from MC38 cells and identified as a cyclophilin A (CypA). A specific interaction between CypA and TREM2 was shown at both protein and cellular levels. Exogenous CypA specifically interacted and co-localized with TREM2 in RAW264.7 cells, and the physical interactions were shown to regulate TREM2 signaling transduction. The Pro144 residue in the extracellular domain of TREM2 was found to be the specific binding site of CypA. When considered together, this provides evidence that CypA interacts specifically with TREM2 as a potent ligand.
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Affiliation(s)
- Kon-Young Ji
- School of Biological Sciences and Technology, Chonnam National University, Gwangju, Republic of Korea
| | - Su-Man Kim
- School of Biological Sciences and Technology, Chonnam National University, Gwangju, Republic of Korea
| | - Su-Min Yee
- School of Biological Sciences and Technology, Chonnam National University, Gwangju, Republic of Korea
| | - Min-Jae Kim
- School of Biological Sciences and Technology, Chonnam National University, Gwangju, Republic of Korea
| | - Yu-Jin Ban
- School of Biological Sciences and Technology, Chonnam National University, Gwangju, Republic of Korea
| | - Eun-Mi Kim
- R&D center for Advanced Pharmaceuticals & Evaluation, Korea Institute of Toxicology, Daejeon, Republic of Korea
| | - Eun-Hee Lee
- Product R&D Division Advanced Interdisciplinary Team, Deagu-Gyeongbuk Medical Innovation Foundation, Daegu, Republic of Korea
| | - Ha-Rim Choi
- Department of Nursing, Nambu University, Gwangju, Republic of Korea
| | - Hyosuk Yun
- Department of Chemistry, Chonnam National University, Gwangju, Republic of Korea
| | - Chul Won Lee
- Department of Chemistry, Chonnam National University, Gwangju, Republic of Korea
| | - Chul-Ho Yun
- School of Biological Sciences and Technology, Chonnam National University, Gwangju, Republic of Korea
| | - C Justin Lee
- Center for Cognition and Sociality, Institute for Basic Science, Daejeon, Republic of Korea
| | - Hyang Burm Lee
- Division of Food Technology, Biotechnology and Agrochemistry, Chonnam National University, Gwangju, Republic of Korea
| | - Hyung-Sik Kang
- School of Biological Sciences and Technology, Chonnam National University, Gwangju, Republic of Korea
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10
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Lee HY, Lee EH, Yi J, Ji KY, Kim SM, Choi HR, Yee SM, Kang HS, Kim EM. TREM2 promotes natural killer cell development in CD3 -CD122 +NK1.1 + pNK cells. BMC Immunol 2021; 22:30. [PMID: 33980160 PMCID: PMC8114489 DOI: 10.1186/s12865-021-00420-0] [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] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 04/06/2021] [Indexed: 01/16/2023] Open
Abstract
Background Triggering receptor expressed on myeloid cells 2 (TREM2) signaling is considered to regulate anti-inflammatory responses in macrophages, dendritic cell maturation, osteoclast development, induction of obesity, and Alzheimer’s disease pathogenesis. However, little is known regarding the effect of TREM2 on natural killer (NK) cells. Results Here, we demonstrated for the first time that CD3−CD122+NK1.1+ precursor NK (pNK) cells expressed TREM2 and their population increased in TREM2-overexpressing transgenic (TREM2-TG) mice compared with that in female C57BL/6 J wild type (WT) mice. Both NK cell-activating receptors and NK cell-associated genes were expressed at higher levels in various tissues of TREM2-TG mice than in WT mice. In addition, bone marrow-derived hematopoietic stem cells (HSCs) of TREM2-TG mice (TG-HSCs) successfully differentiated into NK cells in vitro, with a higher yield from TG-HSCs than from WT-HSCs. In contrast, TREM2 signaling inhibition by TREM2-Ig or a phosphatidylinositol 3-kinase (PI3K) inhibitor affected the expression of the NK cell receptor repertoire and decreased the expression levels of NK cell-associated genes, resulting in significant impairment of NK cell differentiation. Moreover, in melanoma-bearing WT mice, injection of bone marrow cells from TREM2-TG mice exerted greater antitumor effects than that with cells from WT control mice. Conclusions Collectively, our data clearly showed that TREM2 promoted NK cell development and tumor regression, suggesting TREM2 as a new candidate for cancer immunotherapy. Supplementary Information The online version contains supplementary material available at 10.1186/s12865-021-00420-0.
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Affiliation(s)
- Hwa-Youn Lee
- Chemicals Registration & Evaluation Team, National Institute of Environmental Research, Hwangyeong-ro 42, Seo-gu, Incheon, 22689, Korea
| | - Eun-Hee Lee
- Medical Device Development Center, Daegu-Gyeongbuk Medical Innovation Foundation, 80 Cheombok-ro, Dong-gu, Daegu, 41061, Korea
| | - Jawoon Yi
- School of Biological Sciences and Technology, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju, 61186, Republic of Korea
| | - Kon-Young Ji
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, 461-24 Jeonmin-dong, Yuseong-gu, Daejeon, 34054, Korea
| | - Su-Man Kim
- School of Biological Sciences and Technology, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju, 61186, Republic of Korea
| | - Ha-Rim Choi
- Department of Nursing, Nambu University, 23 Chumdan Jungang-ro, Gwangsan-gu, Gwangju, 62271, Korea
| | - Su-Min Yee
- School of Biological Sciences and Technology, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju, 61186, Republic of Korea
| | - Hyung-Sik Kang
- School of Biological Sciences and Technology, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju, 61186, Republic of Korea.
| | - Eun-Mi Kim
- Department of Predictive Toxicology, Korea Institute of Toxicology, 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea.
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11
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Yun JM, Choi S, Kim K, Kim SM, Son JS, Lee G, Jeong SM, Park SY, Kim YY, Park SM. All-cause mortality, cardiovascular mortality, and incidence of cardiovascular disease according to a screening program of cardiovascular risk in South Korea among young adults: a nationwide cohort study. Public Health 2020; 190:23-29. [PMID: 33338899 DOI: 10.1016/j.puhe.2020.10.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 08/03/2020] [Accepted: 10/29/2020] [Indexed: 11/17/2022]
Abstract
OBJECTIVES We aimed to determine whether there are any differences in all-cause and cause-specific mortality with cardiovascular disease (CVD) risk between health screening attenders and non-attenders among young adults. STUDY DESIGN We performed a retrospective cohort study using claim data from the Korean National Health Insurance Service database. METHODS Individuals aged 20-39 years who had received health screening at least once between 2002 and 2005 were classified as attenders, and the others were classified as non-attenders. After propensity score matching according to attendance of health screening, 2,060,409 attenders and 2,060,409 non-attenders were included. We estimated adjusted hazard ratios (HRs) and 95% confidence interval (CI) for all-cause mortality, cause-specific mortality, and hospitalization of CVD from 2006 to 2015. RESULTS Survival from all-cause mortality was greater among attenders than among non-attenders (log rank P < 0.001). Similarly, death from CVD (log rank P = 0.007) and CVD events (log rank P < 0.001) were less likely among attenders. The risk for all-cause mortality in attenders was significantly lower than that in non-attenders (HR = 0.83, 95% CI = 0.81 to 0.84). The risk for CVD mortality (HR = 0.80, 95% CI = 0.73 to 0.87) and hospitalization of CVD (HR = 0.92, 95% CI = 0.91 to 0.94) were lower in attenders. In stratified analyses, the risk for all-cause and cause-specific mortalities was lower among attenders regardless of insurance type. CONCLUSIONS Among young adults, the risk for all-cause mortality, CVD mortality, and hospitalization of CVD were lower for those who underwent health screenings. Future studies that evaluate the cost-effectiveness of health screening with additional consideration of psychosocial aspects are needed.
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Affiliation(s)
- J M Yun
- Department of Family Medicine, Seoul National University Hospital, Seoul, South Korea
| | - S Choi
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, South Korea
| | - K Kim
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, South Korea
| | - S M Kim
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, South Korea
| | - J S Son
- Department of Family Medicine, Seoul National University Hospital, Seoul, South Korea
| | - G Lee
- Department of Family Medicine, Seoul National University Hospital, Seoul, South Korea
| | - S-M Jeong
- Department of Family Medicine, Seoul National University Hospital, Seoul, South Korea
| | - S Y Park
- Big Data Steering Department, National Health Insurance Service, Wonju, South Korea
| | - Y-Y Kim
- Big Data Steering Department, National Health Insurance Service, Wonju, South Korea
| | - S M Park
- Department of Family Medicine, Seoul National University Hospital, Seoul, South Korea; Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, South Korea.
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12
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Choi SJ, Kwak DW, Kil K, Kim SC, Kwon JY, Kim YH, Na S, Bae JG, Cha HH, Shim JY, Oh KY, Lee KA, Kim SM, Cho IA, Lee SM, Cho GJ, Jo YS, Choi GY, Choi SK, Hur SE, Hwang HS, Kim YJ. Vaginal compared with intramuscular progestogen for preventing preterm birth in high-risk pregnant women (VICTORIA study): a multicentre, open-label randomised trial and meta-analysis. BJOG 2020; 127:1646-1654. [PMID: 32536019 DOI: 10.1111/1471-0528.16365] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/02/2020] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To compare the efficacy of two types of progestogen therapy for preventing preterm birth (PTB) and to review the relevant literature. DESIGN A multicentre, randomised, open-label, equivalence trial and a meta-analysis. SETTING Tertiary referral hospitals in South Korea. POPULATION Pregnant women with a history of spontaneous PTB or short cervical length (<25 mm). METHODS Eligible women were screened and randomised at 16-22 weeks of gestation to receive either 200 mg of vaginal micronised progesterone daily (vaginal group) or an intramuscular injection of 250 mg 17α-hydroxyprogesterone caproate weekly (IM group). Stratified randomisation was carried out according to participating centres and indications for progestogen therapy. This trial was registered at ClinicalTrials.gov (NCT02304237). MAIN OUTCOME MEASURE Preterm birth (PTB) before 37 weeks of gestation. RESULTS A total of 266 women were randomly assigned and a total of 247 women (119 and 128 women in the vaginal and IM groups, respectively) were available for the intention-to-treat analysis. Risks of PTB before 37 weeks of gestation did not significantly differ between the two groups (22.7 versus 25.8%, P = 0.571). The difference in PTB risk between the two groups was 3.1% (95% CI -7.6 to 13.8%), which was within the equivalence margin of 15%. The meta-analysis results showed no significant differences in the risk of PTB between the vaginal and IM progestogen treatments. CONCLUSION Compared with vaginal progesterone, treatment with intramuscular progestin might increase the risk of PTB before 37 weeks of gestation by as much as 13.8%, or reduce the risk by as much as 7.6%, in women with a history of spontaneous PTB or with short cervical length. TWEETABLE ABSTRACT Vaginal and intramuscular progestogen showed equivalent efficacy for preventing preterm birth before 37 weeks of gestation.
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Affiliation(s)
- S-J Choi
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - D W Kwak
- Ajou University School of Medicine, Suwon, Korea
| | - K Kil
- Yeouido St Mary's Hospital, The Catholic University of Korea, Seoul, Korea
| | - S-C Kim
- Pusan National University College of Medicine, Pusan, Korea
| | - J-Y Kwon
- Institute of Women's Life Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - Y H Kim
- Chonnam National University Medical School, Gwangju, Korea
| | - S Na
- Kangwon National University Hospital, School of Medicine Kangwon National University, Chuncheon, Korea
| | - J-G Bae
- Keimyung University School of Medicine, Daegu, Korea
| | - H-H Cha
- Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
| | - J-Y Shim
- Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - K Y Oh
- School of Medicine, Eulji University, Daejeon, Korea
| | - K A Lee
- Kyung Hee University School of Medicine, Seoul, Korea
| | - S M Kim
- Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - I A Cho
- Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, Korea
| | - S M Lee
- Seoul National University College of Medicine, Seoul, Korea
| | - G J Cho
- Korea University College of Medicine, Seoul, Korea
| | - Y S Jo
- St Vincent's Hospital, College of Medicine, The Catholic University of Korea, Suwon, Korea
| | - G Y Choi
- Soonchunhyang University Seoul Hospital, College of Medicine, Soonchunhyang University, Seoul, Korea
| | - S K Choi
- College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - S E Hur
- Konyang University Hospital, Daejeon, Korea
| | - H S Hwang
- Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea
| | - Y J Kim
- College of Medicine, Ewha Womans University, Seoul, Korea
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13
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Chae YS, Lee JY, Lee JW, Park JY, Kim SM, Lee JH. Survival of oral mucosal melanoma according to treatment, tumour resection margin, and metastases. Br J Oral Maxillofac Surg 2020; 58:1097-1102. [PMID: 32586691 DOI: 10.1016/j.bjoms.2020.05.028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 05/20/2020] [Indexed: 12/13/2022]
Abstract
Because of the poor prognosis and of oral mucosal melanoma, and patients' short survival, large, randomised, clinical studies are difficult. We have investigated its demographic characteristics and analysed the effect of treatment, resection margins, and metastases on survival. We recorded age, sex, site of primary tumour, and types of treatment, survival, and metastases in 74 patients treated at the Department of Oral and Maxillofacial Surgery, Seoul National University Dental Hospital. Survival was analysed based on bony invasion, depth of invasion, and resection margins, and we found that it varied depending on the primary site (p=0.002), and declined with liver (p=0.001) or brain (p=0.033) metastases. The two-year survival according to the primary site was as follows: palate 85% (n=32), anterior maxillary gingiva 53% (n=13), mandible 58% (n=13), and posterior maxillary gingival 74% (n=10) and buccal mucosa 50% (n=4). The two-year survival was 34% (n=8) in patients with liver metastases and 23% (n=7) in patients with brain metastases. In cases of bony invasion (p=0.005), depth of invasion (p=0.042), unclear resection margin (p=0.023), or higher T stages (p=0.009), the survival declined considerably. Neck dissection did not affect survival (p=0.343). Survival of the patients given chemotherapy was significantly lower (p=0.013) and the two-year survival was 54.0%. The patients given radiotherapy showed no significant difference in survival compared with those not given radiotherapy (p=0.107). In conclusion, primary site, bony invasion, resection margins, depth of invasion and systemic metastases were critical to predict prognosis and selection of treatment of oral mucosal melanoma.
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Affiliation(s)
- Y-S Chae
- Department of Oral and Maxillofacial Surgery, Seoul National University Dental Hospital, Seoul, Republic of Korea; Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - J-Y Lee
- Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - J-W Lee
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Kyung Hee University, Seoul, Republic of Korea
| | - J-Y Park
- Department of Oral and Maxillofacial Surgery, Seoul National University Dental Hospital, Seoul, Republic of Korea
| | - S M Kim
- Department of Oral and Maxillofacial Surgery, Seoul National University Dental Hospital, Seoul, Republic of Korea; Dental Research Institute, Seoul National University, Seoul, Republic of Korea; Clinical Trial Center and Oral Cancer Center, Seoul National University Dental Hospital, Seoul, Republic of Korea
| | - J-H Lee
- Department of Oral and Maxillofacial Surgery, Seoul National University Dental Hospital, Seoul, Republic of Korea; Dental Research Institute, Seoul National University, Seoul, Republic of Korea; Clinical Trial Center and Oral Cancer Center, Seoul National University Dental Hospital, Seoul, Republic of Korea.
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14
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Kim M, Choi H, Kim SM, Kang HS. The role of Axl in bacterial infection-mediated inflammatory responses. The Journal of Immunology 2020. [DOI: 10.4049/jimmunol.204.supp.232.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
Salmonella Typhimurium (S. Typhimurium), one of the most common infectious bacteria, triggers an inflammatory reaction in epithelial cells of the intestine and migrates into the spleen and liver to colonize. To elucidate the role of Axl in bacterial infection-mediated inflammatory responses, Axl-depleted mice and WT mice were infected with S. Typhimurium, and the systemic dissemination caused by the infection was evaluated. The Axl-depleted mice shows better histological scores and increased intraepithelial T cells. The colony number and CFU of S. typhimurium were also lower in the liver of Axl-depleted mice than in that of WT mice. Thus, lack of Axl results in better resistance to S. Typhimurium, suggesting that downregulation of Axl is essential for bacterial resistance by inducing increased number and activity of intraepithelial T cells.
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Affiliation(s)
- Minjae Kim
- 1Chonnam National University, South Korea
| | | | - Su-Man Kim
- 1Chonnam National University, South Korea
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15
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Yi J, Choi H, Kim SM, Kang HS. Deficiency of TAM receptor family increases γδT cell population by promoting chemokine-induced gut homing. The Journal of Immunology 2020. [DOI: 10.4049/jimmunol.204.supp.84.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
Intestinal intraepithelial lymphocytes (IELs) are a various community of lymphoid cells located in between the intestinal epithelial cells (IECs) that configure the intestinal mucosal barrier. The epithelial γδT cells act as a major T cell population in epithelia, which is support in tissue homeostasis and repair. However, we found that the γδT cell population was strikingly increased in IELs in TAM receptor-deficient mice. Based on these data, we tested whether this receptor acts as a crucial regulator, which may generate better homing to the intestinal epithelium. We also tested that adoptive transfer of γδT cells to show γδT cell homing to the intestinal epithelium. Our study shows that a key factor in γδT cell homing into the intestinal epithelium, to maintain homeostasis.
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Affiliation(s)
- Jawoon Yi
- 1Chonnam National University, South Korea
| | | | - Su-Man Kim
- 1Chonnam National University, South Korea
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16
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Kim HY, Choi JH, Kim KH, Kim SM. 1175 Comparison of fractional myocardial mass, a vessel-specific myocardial mass-at-risk, with coronary angiographic scoring systems for predicting myocardial ischemia. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Aims The burden of coronary artery disease has been assessed by various semi-quantitative angiographic scores, which are frequently different each other. A non-invasive and quantitative modality may substitute angiographic sores for prognostic implication and decision of revascularization strategy. We compared fractional myocardial mass (FMM) with angiographic scores for predicting myocardial ischemia.
Methods In this multicenter registry, 411 patients who underwent coronary computed tomography angiography (CCTA) were followed by invasive coronary angiography and FFR measurement. CCTA–derived %FMM with diameter stenosis ≥70% (%FMM-70) or ≥50% (%FMM-50) were compared with 9 angiographic scores (APPROACH, Duke Jeopardy, BARI, CASS, SYNTAX, Jenkins, BCIS-1, Leaman, Modified Duke) and were tested regarding their performance for predicting FFR ≤ 0.80. Predictive performance of %FMM or angiographic scores for FFR ≤ 0.80 established in derivation cohort (N = 250) and tested in validation cohort (N = 161).
Results The performance of %FMM-70 and %FMM-50 were similar to most angiographic scores (%FMM-70, c-statistics = 0.76; %FMM-50, 0.71; angiographic scores, 0.68 – 0.79). The frequency of FFR ≤ 0.80 increased consistently according to %FMM-70, %FMM-50, and all angiographic scores (p < 0.001, all). The optimal cutoff of %FMM-50 and %FMM-70 for FFR ≤ 0.80 were ≥34.5% and ≥9.8%, respectively. The sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of %FMM-50 were 83%, 56%, 73%, 70%, 72%, and of %FMM-70 were 72%, 78%, 75%, 75%, and 75% using these cutoffs. Validation cohort showed consistent results.
Conclusion %FMM correlated well with angiographic scores and had a potential to be used as a non-invasive alternative to the angiographic scores. The integration of the severity of stenosis and the amount of subtended myocardium may improve the detection of clinically significant coronary artery stenosis.
Abstract 1175 Figure. FMM vs angiographic score
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Affiliation(s)
- H Y Kim
- Chonnam National University Hospital, Gwangju, Korea (Republic of)
| | - J H Choi
- Samsung Medical Center, Seoul, Korea (Republic of)
| | - K H Kim
- Chonnam National University Hospital, Gwangju, Korea (Republic of)
| | - S M Kim
- Samsung Medical Center, Seoul, Korea (Republic of)
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Kim SM, Park M, Yee SM, Ji KY, Lee EH, Nguyen TV, Nguyen THL, Jang J, Kim EM, Choi HR, Yun CH, Kang HS. Axl is a key regulator of intestinal γδ T-cell homeostasis. FASEB J 2019; 33:13386-13397. [DOI: 10.1096/fj.201901356r] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Su-Man Kim
- School of Biological Sciences and Technology, Chonnam National University, Gwangju, South Korea
| | - Min Park
- School of Biological Sciences and Technology, Chonnam National University, Gwangju, South Korea
| | - Su-Min Yee
- School of Biological Sciences and Technology, Chonnam National University, Gwangju, South Korea
| | - Kon-Young Ji
- School of Biological Sciences and Technology, Chonnam National University, Gwangju, South Korea
| | - Eun-Hee Lee
- Deagu-Gyeongbuk Medical Innovation Foundation, Daegu, South Korea
| | - Thi-Van Nguyen
- School of Biological Sciences and Technology, Chonnam National University, Gwangju, South Korea
| | - Thi Hong-Loan Nguyen
- School of Biological Sciences and Technology, Chonnam National University, Gwangju, South Korea
| | - Jin Jang
- School of Biological Sciences and Technology, Chonnam National University, Gwangju, South Korea
| | - Eun-Mi Kim
- Predictive Model Research Center, Korea Institute of Toxicology, Daejeon, South Korea
| | - Ha-Rim Choi
- Department of Nursing, Nambu University, Gwangju, South Korea
| | - Chul-Ho Yun
- School of Biological Sciences and Technology, Chonnam National University, Gwangju, South Korea
| | - Hyung-Sik Kang
- School of Biological Sciences and Technology, Chonnam National University, Gwangju, South Korea
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Kim MS, Kim SM, Kim EK, Park SJ, Lee SC, Park SW, Choe YH, Chang SA. P5279Pericardial inflammation basced on cardiac magnetic resonance imaging in patients with tuberculous pericarditis. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
While constrictive pericarditis has been traditionally considered a disabling disease, reversible constrictive pericarditis has been described in previous studies. But there are limited studies on cardiac imaging of tuberculous pericarditis. In particular, no studies on cardiac magnetic resonance imaging (CMR) have been reported. We aimed to investigate CMR findings including pericardial late gadolinium enhancement (LGE) and T2 fat suppression and black blood sequences in patients with tuberculous pericarditis.
Methods
We retrospectively analyzed medical records of patients with tuberculous pericarditis between January 2010 and January 2017 in Samsung Medical Center. Definite diagnosis of tuberculous pericarditis is based on the identification of Mycobacterium tuberculosis in pericardial fluid or tissue; probable diagnosis was made when there was other evidence of tuberculosis elsewhere in patients with unexplained pericarditis. We performed CMR at initial diagnosis. Treatment consists of the standard 4-drug antituberculosis regimen for 6 months with or without steroids. Echocardiography was also conducted at initial diagnosis and 6 months later.
Results
Total 39 cases with tuberculous pericarditis in immunocompetent patients were enrolled. Ten patients were diagnosed as definite tuberculous pericarditis. CMR finding at initial diagnosis divided into five groups: 1) pericardial effusion only (n=20, 51.3%), 2) effusive constrictive pericarditis (n=5, 12.8%), 3) constrictive pericarditis (n=11, 28.2%), 4) pericardial abscess formation (n=4, 10.3%) and 5) absence of pericardial effusion and constrictive physiology (n=1, 2.6%). One of the 4 patients with pericardial abscess formation was together with pericardial effusion and the other was accompanied by effusive constrictive pericarditis. Pericardial thickness increased to more than 4mm in 25 patients (64.1%) and the mean pericardial thickness was 10.0±6.9mm. Delayed enhancement of pericardium was noticed in 29 patients (74.4%). In T2 fat suppression and black blood sequences, 30 patients showed increased T2 signal intensity indicating inflammation with extensive edema. Pericardial thickening (>4mm) with constriction (n=15) was not statistically significant in the delayed enhancement and increased T2 signal intensity compared with pericardial thickening without constrictive pericarditis (n=10) (delayed enhancement 93.8% vs. 77.8% p=0.287; increased T2 signal intensity 88.9% vs. 87.5%, p=0.713). After 6 months, only 3 patients still had constrictive pericarditis in echocardiography.
Effusive constrictive pericarditis
Conclusions
Pericardial thickening is associated with delayed enhancement and increased T2 signal intensity in patients with tuberculous pericarditis regardless of constrictive pericarditis. Even though there were hemodynamic feature of constrictive pericarditis and pericardial inflammation with extensive edema in CMR at initial diagnosis, 80% of the patients were improved from constrictive pericarditis.
Acknowledgement/Funding
None
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Affiliation(s)
- M S Kim
- Gangnam CHA General Hospital, Cardiology, Seoul, Korea (Republic of)
| | - S M Kim
- Samsung Medical Center, Radiology, Cardiovascular Imaging Center, Seoul, Korea (Republic of)
| | - E K Kim
- Samsung Medical Center, Cardiology, Seoul, Korea (Republic of)
| | - S J Park
- Samsung Medical Center, Cardiology, Seoul, Korea (Republic of)
| | - S C Lee
- Samsung Medical Center, Cardiology, Seoul, Korea (Republic of)
| | - S W Park
- Samsung Medical Center, Cardiology, Seoul, Korea (Republic of)
| | - Y H Choe
- Samsung Medical Center, Radiology, Cardiovascular Imaging Center, Seoul, Korea (Republic of)
| | - S A Chang
- Samsung Medical Center, Cardiology, Seoul, Korea (Republic of)
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Kim SM, Kim EM, Ji KY, Lee HY, Yee SM, Woo SM, Yi JW, Yun CH, Choi H, Kang HS. TREM2 Acts as a Tumor Suppressor in Colorectal Carcinoma through Wnt1/ β-catenin and Erk Signaling. Cancers (Basel) 2019; 11:cancers11091315. [PMID: 31489935 PMCID: PMC6770495 DOI: 10.3390/cancers11091315] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 08/30/2019] [Accepted: 09/05/2019] [Indexed: 01/22/2023] Open
Abstract
TREM2 (triggering receptor expressed on myeloid cells) is involved in the development of malignancies. However, the function of TREM2 in colorectal cancer has not been clearly elucidated. Here, we investigated TREM2 function for the first time in colorectal epithelial cancer cells and demonstrated that TREM2 is a novel tumor suppressor in colorectal carcinoma. Blockade of TREM2 significantly promoted the proliferation of HT29 colorectal carcinoma cells by regulating cell cycle-related factors, such as p53 phosphorylation and p21 and cyclin D1 protein levels. HT29 cell migration was also increased by TREM2 inhibition via MMP9 (matrix metalloproteinase 9) expression upregulation. Furthermore, we found that the tumor suppressor effects of TREM2 were associated with Wnt/β-catenin and extracellular signal-regulated kinase (ERK) signaling. Importantly, the effect of TREM2 in the suppression of tumor development was demonstrated by in vivo and in vitro assays, as well as in human colon cancer patient tissue arrays. Overall, our results identify TREM2 as a potential prognostic biomarker and therapeutic target for colorectal cancer.
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Affiliation(s)
- Su-Man Kim
- School of Biological Sciences and Technology, Chonnam National University, Gwangju 500-757, Korea.
| | - Eun-Mi Kim
- Korea Institute of Toxicology, Daejeon, 34114, Korea.
| | - Kon-Young Ji
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, Daejeon 34054, Korea.
| | - Hwa-Youn Lee
- Medical Device Development Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu 701-310, Korea.
| | - Su-Min Yee
- School of Biological Sciences and Technology, Chonnam National University, Gwangju 500-757, Korea.
| | - Su-Min Woo
- School of Biological Sciences and Technology, Chonnam National University, Gwangju 500-757, Korea.
| | - Ja-Woon Yi
- School of Biological Sciences and Technology, Chonnam National University, Gwangju 500-757, Korea.
| | - Chul-Ho Yun
- School of Biological Sciences and Technology, Chonnam National University, Gwangju 500-757, Korea.
| | - Harim Choi
- Department of Nursing, Nambu University, Gwangju 506-706, Korea.
| | - Hyung-Sik Kang
- School of Biological Sciences and Technology, Chonnam National University, Gwangju 500-757, Korea.
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Lee YS, Yang WK, Yee SM, Kim SM, Park YC, Shin HJ, Han CK, Lee YC, Kang HS, Kim SH. KGC3P attenuates ovalbumin-induced airway inflammation through downregulation of p-PTEN in asthmatic mice. Phytomedicine 2019; 62:152942. [PMID: 31102886 DOI: 10.1016/j.phymed.2019.152942] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 04/24/2019] [Accepted: 04/29/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND The roots of Korean red ginseng (Panax ginseng C.A.Mey.; KGC) have been used as an herbal supplement to enhance vital energy and immune capacity. Salvia plebeia R.Br. has been used to treat inflammatory diseases. PURPOSE The aim of this study was to examine the anti-asthmatic effects of a mixture of Korean red ginseng and Salvia plebeia R.Br. (KGC3P), its component nepetin, and their modes of action in alleviating ovalbumin (OVA)-induced asthma in mice. METHOD BALB/c mice were sensitized with OVA then subjected to intratracheal, intraperitoneal, and aerosol challenges. KGC3P and nepetin were administered orally for four weeks. Airway hyperresponsiveness (AHR), OVA-specific IgE levels, and Th2 cytokine- and gene expression levels in bronchoalveolar lavage fluid (BALF) and splenocytes were measured. Histological and immune cell subtype analyses were performed. PTEN and Akt phosphorylation levels were also evaluated. RESULTS KGC3P reduced OVA-induced AHR, serum IgE levels, histological changes, and eosinophils infiltration but also the absolute number of immune cell subtypes including CD3+/CD4+, CD3+/CD8+, CD4+/CD69+, and Gr-1+/CD11b+ in the lungs, BALF, and mesenteric lymph nodes (MLN). KGC3P also lowered the Th2 cytokines IL-4, IL-5, and IL-13 in the BALF and splenocytes and downregulated the IL-4, IL-13, IL-17, TNF-α, and MUC5AC genes in the lung. KGC3P upregulated the peroxisome proliferator-activated receptor (PPAR)γ gene but downregulated the p-Akt and p-PTEN phosphorylation. Similar results were obtained with nepetin treatment. CONCLUSION KGC3P and nepetin are anti-asthmatic because they reduce various immune cells such as eosinophils and Th2 cell as well as Th2 cytokines. These mechanisms may be accompanied by the regulation of PPARγ expression and the PTEN pathway. Taken together, our results indicate that KGC3P and nepetin may potentially prevent and treat asthma.
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Affiliation(s)
- Young-Sil Lee
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, 1672 Yuseong-daero, Yuseong-gu, Dajeon 34054, Republic of Korea
| | - Won-Kyung Yang
- Division of Respiratory Systems, Department of Internal Medicine, College of Korean Medicine, Daejeon University, Daejeon, Korea; Department of Herbology, College of Korean Medicine, Sangji University, Wonju 220-702, Republic of Korea
| | - Su-Min Yee
- School of Biological Sciences and Technology, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of Korea
| | - Su-Man Kim
- School of Biological Sciences and Technology, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of Korea
| | - Yang-Chun Park
- Division of Respiratory Systems, Department of Internal Medicine, College of Korean Medicine, Daejeon University, Daejeon, Korea
| | | | | | - Young Cheol Lee
- Department of Herbology, College of Korean Medicine, Sangji University, Wonju 220-702, Republic of Korea
| | - Hyung-Sik Kang
- School of Biological Sciences and Technology, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of Korea.
| | - Seung-Hyung Kim
- Institute of Traditional Medicine and Bioscience, Daejeon University, Daejeon 34520, Republic of Korea.
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Nam A, Kim SM, Jeong JW, Song KH, Koo TS, Seo KW. Comparison of body surface area-based and weight-based dosing format for oral prednisolone administration in small and large-breed dogs. Pol J Vet Sci 2019; 20:611-613. [PMID: 29166276 DOI: 10.1515/pjvs-2017-0076] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This study compared the pharmacokinetics of Prednisolone (PDS) in small- and large breed dogs with a dosing format based on body surface area (BSA) or body weight (BW). The maximum concentration and area under the curve in large-breed dogs orally administered 2 mg/kg PDS were significantly greater than those in small-breed dogs given 2 mg/kg and in large-breed dogs given 40 mg/m2. The higher blood concentrations that result from BW-based dosing of oral PDS in large-breed dogs can be more than required for effect. Meanwhile, BSA dosing at 40 mg/m may be suboptimal. These findings confirm important differences between standard PDS dosing schemes in dogs while highlighting the need to further optimize PDS dosing in large-breed dogs.
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Kim SM, Rhyu KH, Lim SJ. Salvage of failed osteosynthesis for an atypical subtrochanteric femoral fracture associated with long-term bisphosphonate treatment using a 95° angled blade plate. Bone Joint J 2018; 100-B:1511-1517. [PMID: 30418051 DOI: 10.1302/0301-620x.100b11.bjj-2018-0306.r1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AIMS The aim of this study was to evaluate the outcomes of a salvage procedure using a 95° angled blade plate for failed osteosynthesis of atypical subtrochanteric femoral fractures associated with the long-term use of bisphosphonates. These were compared with those for failed osteosynthesis of subtrochanteric fractures not associated with bisphosphonate treatment. PATIENTS AND METHODS Between October 2008 and July 2016, 14 patients with failed osteosynthesis of an atypical subtrochanteric femoral fracture were treated with a blade plate (atypical group). Their mean age was 67.8 years (60 to 74); all were female. During the same period, 21 patients with failed osteosynthesis of a typical subtrochanteric fracture underwent restabilization using a blade plate (typical group). Outcome variables included the time of union, postoperative complications, Harris Hip Score, and Sanders functional rating scale. RESULTS In the atypical group, union was achieved in 12 patients (85.7%) at a mean of 8.4 months (4 to 12). The mean follow-up was 31.2 months (12 to 92) The plate broke in one patient requiring further stabilization with a longer plate and strut-allograft. Another patient with failure of fixation and varus angulation at the fracture site declined further surgery. In the typical group, union was achieved in 18 patients (85.7%) at a mean of 7.9 months (4 to 12). There was no difference in the mean Harris Hip Score between the two groups (83.1 points vs 86.8 points; p = 0.522) at the time of final follow-up. Sanders functional rating scores were good or excellent in 78.6% of the atypical group and in 81.0% of the typical group. CONCLUSION The 95° angled blade plate was shown to be an effective fixation modality for nonunion of atypical subtrochanteric fractures with a high rate of union and functional improvement, comparable to those after fractures not associated with bisphosphonate treatment. Cite this article: Bone Joint J 2018;100-B:1511-17.
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Affiliation(s)
- S M Kim
- Department of Orthopaedic Surgery, Korea University Guro Hospital, Korea University School of Medicine, Seoul, South Korea
| | - K H Rhyu
- Department of Orthopedic Surgery, Kyung Hee University Hospital, College of Medicine, Kyung-Hee University, Seoul, South Korea
| | - S J Lim
- Department of Orthopedic Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
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Park SJ, Kim SM, Ahn JH, Cho KH, Chang SA, Lee SC, Park SW, Choe YH, Oh JK. P6299Extracellular volume by cardiac magnetic resonance predicts outcomes in patients with severe aortic stenosis who underwent aortic valve replacement. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6299] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- S.-J Park
- Samsung Medical Center, Seoul, Korea Republic of
| | - S M Kim
- Samsung Medical Center, Seoul, Korea Republic of
| | - J H Ahn
- Samsung Medical Center, Seoul, Korea Republic of
| | - K H Cho
- Samsung Medical Center, Seoul, Korea Republic of
| | - S A Chang
- Samsung Medical Center, Seoul, Korea Republic of
| | - S C Lee
- Samsung Medical Center, Seoul, Korea Republic of
| | - S W Park
- Samsung Medical Center, Seoul, Korea Republic of
| | - Y H Choe
- Samsung Medical Center, Seoul, Korea Republic of
| | - J K Oh
- Samsung Medical Center, Seoul, Korea Republic of
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Park I, Choi JH, Kim EK, Kim SM, Yang JH, Song YB, Hahn JY, Choi SH, Gwon HC, Lee SH, Choi YH, Oh JK. P1790Non-invasive identification of coronary collateral vessels by coronary computed tomography. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1790] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- I Park
- International ST.Mary's Hospital, Department of Internal medicine, Division of Cardiology, Incheon, Korea Republic of
| | - J H Choi
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - E K Kim
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - S M Kim
- Samsung Medical Center, Department of Radiology, Seoul, Korea Republic of
| | - J H Yang
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - Y B Song
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - J Y Hahn
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - S H Choi
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - H C Gwon
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - S H Lee
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - Y H Choi
- Samsung Medical Center, Department of Radiology, Seoul, Korea Republic of
| | - J K Oh
- Mayo Clinic, Department of Internal medicine, Rochester, United States of America
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Kim SW, Hong N, Rhee Y, Choi YC, Shin HY, Kim SM. Clinical and laboratory features of patients with osteomalacia initially presenting with neurological manifestations. Osteoporos Int 2018; 29:1617-1626. [PMID: 29623355 DOI: 10.1007/s00198-018-4501-1] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 03/22/2018] [Indexed: 10/17/2022]
Abstract
UNLABELLED Patients with osteomalacia often visit the neurology department with conditions mimicking other myopathies. We analyzed clinical features of osteomalacia patients who visited the neurology department. These patients frequently presented with hypocalcemia, hypovitaminosis D, and pain with less severe weakness. Osteomalacia should be considered when patients present with pain and weakness. INTRODUCTION Osteomalacia is a disease of bone metabolism; however, some patients with osteomalacia initially visit the neurology department. As these patients often complain of weakness and gait disturbance, osteomalacia can be confused with other myopathies. We analyzed the clinical features of patients with osteomalacia who visited the neurology department. METHODS We retrospectively reviewed the medical records. Osteomalacia was diagnosed based on symptoms, laboratory features, and imaging results. We compared the characteristics of patients with osteomalacia who visited the neurology department with (1) those who did not visit the neurology department and (2) patients with idiopathic inflammatory myopathy. RESULTS Eighteen patients with osteomalacia visited the neurology department (NR group). The common etiologies in the NR group included tumors or antiepileptic medication, whereas antiviral medication was the most common in patients who did not visit the neurology department (non-NR group). The NR group showed lower serum calcium (p = 0.004) and 25-hydroxyvitamin D (p = 0.006) levels than the non-NR group. When compared with patients with inflammatory myopathy, both groups showed proximal dominant weakness. However, pain was more common in osteomalacia than in myopathy (p = 0.008), and patients with osteomalacia showed brisk deep tendon reflex more often (p = 0.017). Serum calcium (p = 0.003) and phosphate (p < 0.001) levels were lower in osteomalacia than in myopathy. CONCLUSIONS It was not uncommon for patients with osteomalacia to visit the neurology department. The clinical presentation of these patients can be more complex owing the superimposed neurological disease and accompanying hypocalcemia. Osteomalacia should be considered when patients present with pain and weakness.
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Affiliation(s)
- S W Kim
- Department of Neurology, Yonsei University College of Medicine, Seoul, South Korea
| | - N Hong
- Department of Internal Medicine, Severance Hospital, Endocrine Research Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - Y Rhee
- Department of Internal Medicine, Severance Hospital, Endocrine Research Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - Y-C Choi
- Department of Neurology, Yonsei University College of Medicine, Seoul, South Korea
| | - H Y Shin
- Department of Neurology, Yonsei University College of Medicine, Seoul, South Korea
| | - S M Kim
- Department of Neurology, Yonsei University College of Medicine, Seoul, South Korea.
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Ji KY, Jang JH, Lee EH, Kim SM, Song HW, Yang WK, Kim HY, Kim KH, Lee YS, Kim DS, Kang HS, Kim SH. Canavalia gladiata and Arctium lappa extracts ameliorate dextran sulphate sodium-induced inflammatory bowel disease by enhancing immune responses. J Funct Foods 2018. [DOI: 10.1016/j.jff.2018.03.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
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Hwang SM, Kim HJ, Kim SM, Jung Y, Park SW, Chung IY. Lysophosphatidylserine receptor P2Y10: A G protein-coupled receptor that mediates eosinophil degranulation. Clin Exp Allergy 2018; 48:990-999. [PMID: 29700886 DOI: 10.1111/cea.13162] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 04/13/2018] [Accepted: 04/16/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND P2Y10, along with GPR34 and GPR174, is a G protein-coupled receptor that is activated by an endogenous lipid mediator lysophosphatidylserine (LysoPS). Its expression pattern and its function are completely unknown. We have previously shown that P2Y10 is one of the highly up-regulated genes at the late differentiation stage during in vitro eosinophilopoiesis. OBJECTIVE We explored the expression and functions of P2Y10 in human cord blood (CB)-derived and peripheral blood (PB) eosinophils. METHODS Real-time PCR, FACS, Western blot, ELISA, and chemotaxis assays were performed to determine the expression and function of P2Y10. RESULTS As CB cells differentiated towards eosinophils, P2Y10 mRNA and protein were abundantly expressed. P2Y10 was the most highly expressed in the granulocytes from PB, to a lesser extent in monocytes, and least in lymphocytes. Further fractionation of granulocytes revealed that eosinophils express P2Y10 much more strongly than do neutrophils. PB eosinophils solely expressed P2Y10 among the three LysoPS receptors, while PB neutrophils expressed the three at comparable levels. LysoPS activated both CB and PB eosinophils to induce a robust ERK phosphorylation. Importantly, LysoPS was capable of triggering degranulation of ECP in PB eosinophils. This response was significantly reduced by pharmacological inhibitors of TNF-alpha-converting enzyme (TACE), epidermal growth factor receptor (EGFR), and ERK1/2, which were known to be required in P2Y10-mediated signalling pathways. However, LysoPS had no effect on chemotaxis, differentiation, or eosinophil survival. CONCLUSIONS AND CLINICAL RELEVANCE LysoPS provokes eosinophil degranulation through P2Y10. Therefore, P2Y10 is a potential therapeutic target to control eosinophil-associated diseases.
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Affiliation(s)
- S M Hwang
- Department of Bionano Technology, Hanyang University, Ansan, Gyeonggi-do, Korea
| | - H J Kim
- Department of Bionano Technology, Hanyang University, Ansan, Gyeonggi-do, Korea
| | - S M Kim
- Department of Bionano Technology, Hanyang University, Ansan, Gyeonggi-do, Korea
| | - Y Jung
- Department of Microbiology, School of Medicine, Gachon University, Incheon, Korea
| | - S W Park
- Graduate School of Medicine, Soonchunhyang University Hospital, Bucheon, Gyeonggi-do, Korea
| | - I Y Chung
- Department of Bionano Technology, Hanyang University, Ansan, Gyeonggi-do, Korea.,Division of Molecular and Life Sciences, College of Science and Technology, Hanyang University, Ansan, Gyeonggi-do, Korea
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Lee HJ, Im AR, Kim SM, Kang HS, Lee JD, Chae S. The flavonoid hesperidin exerts anti-photoaging effect by downregulating matrix metalloproteinase (MMP)-9 expression via mitogen activated protein kinase (MAPK)-dependent signaling pathways. Altern Ther Health Med 2018; 18:39. [PMID: 29382339 PMCID: PMC5791357 DOI: 10.1186/s12906-017-2058-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Accepted: 12/12/2017] [Indexed: 02/06/2023]
Abstract
Background Hesperidin is a flavonoid with antioxidant, anti-inflammatory, and immune modulatory activities. Photoaging is a consequence of chronic exposure to the sun and ultraviolet (UV) radiation. This study was designed to evaluate the efficacy of hesperidin against photoaging of dorsal skin in hairless mice. Methods Hairless male mice (6-week-old) were divided into three groups (n = 7): control, UVB-treated vehicle, and UVB-treated hesperidin groups. UVB-irradiated mice from hesperidin group were orally administered 0.1 mL of water containing 100 mg/kg body weight per day hesperidin. Results The mean length and depth of wrinkles in the UVB-treated hesperidin group significantly improved after the oral administration of hesperidin, which significantly inhibited the increase in epidermal thickness and epidermal hypertrophy (P < 0.05). UVB irradiation of mice induced epidermal barrier dysfunction including an increase in the transepidermal water loss (TEWL); however, hesperidin decreased the TEWL. UVB irradiation increased the expression of MMP-9 and pro-inflammatory cytokines whereas UVB-treated hesperidin group showed reduced expression. These results indicate that hesperidin showed anti-photoaging activity in the UVB-irradiated hairless mice. In conclusion, hesperidin inhibited the UVB-induced increase in skin thickness, wrinkle formation, and collagen fiber loss in male hairless mice. Conclusions These results suggest that hesperidin shows potent anti-photoaging activity by regulating MMP-9 expression through the suppression of MAPK-dependent signaling pathways.
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Lee EH, Kim EM, Ji KY, Park AR, Choi HR, Lee HY, Kim SM, Chung BY, Park CH, Choi HJ, Ko YH, Bai HW, Kang HS. Axl acts as a tumor suppressor by regulating LIGHT expression in T lymphoma. Oncotarget 2017; 8:20645-20655. [PMID: 28423548 PMCID: PMC5400533 DOI: 10.18632/oncotarget.15830] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 02/01/2017] [Indexed: 01/17/2023] Open
Abstract
Axl is an oncogenic receptor tyrosine kinase that plays a role in many cancers. LIGHT (Lymphotoxin-related inducible ligand that competes for glycoprotein D binding to herpesvirus entry mediator on T cells) is a ligand that induces robust anti-tumor immunity by enhancing the recruitment and activation of effector immune cells at tumor sites. We observed that mouse EL4 and human Jurkat T lymphoma cells that stably overexpressed Axl also showed high expression of LIGHT. When Jurkat-Axl cells were treated with Gas6, a ligand for Axl, LIGHT expression was upregulated through activation of the PI3K/AKT signaling pathway and transcriptional induction by Sp1. The lytic activity of cytotoxic T lymphocytes and natural killer cells was enhanced by EL4-Axl cells. In addition, tumor volume and growth were markedly reduced due to enhanced apoptotic cell death in EL4-Axl tumor-bearing mice as compared to control mice. We also observed upregulated expression of CCL5 and its receptor, CCR5, and enhanced intratumoral infiltration of cytotoxic T lymphocytes and natural killer cells in EL4-Axl-bearing mice as compared to mock controls. These data strongly suggested that Axl exerts novel tumor suppressor effects by inducing upregulation of LIGHT in the tumor microenvironment of T lymphoma.
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Affiliation(s)
- Eun-Hee Lee
- Research Division for Biotechnology, Advanced Radiation Technology Institute (ARTI), Korea Atomic Energy Insitute (KAERI), Jeongeup-si, Jeollabuk-do 580-185, Republic of Korea
| | - Eun-Mi Kim
- Predictive Model Research Center, Korea Institute of Toxicology, Yuseong-gu, Daejeon, 34114, Republic of Korea
| | - Kon-Young Ji
- School of Biological Sciences and Technology, Chonnam National University, Buk-gu, Gwangju 500-757, Republic of Korea
| | - A-Reum Park
- School of Biological Sciences and Technology, Chonnam National University, Buk-gu, Gwangju 500-757, Republic of Korea
| | - Ha-Rim Choi
- Department of Nursing, Nambu University, Gwangsan-gu, Gwangju 506-706, Republic of Korea
| | - Hwa-Youn Lee
- Medical Device Development Center, Daegu-Gyeongbuk Medical Innovation Foundation, Dong-gu, Daegu 701-310, Republic of Korea
| | - Su-Man Kim
- School of Biological Sciences and Technology, Chonnam National University, Buk-gu, Gwangju 500-757, Republic of Korea
| | - Byung Yeoup Chung
- Research Division for Biotechnology, Advanced Radiation Technology Institute (ARTI), Korea Atomic Energy Insitute (KAERI), Jeongeup-si, Jeollabuk-do 580-185, Republic of Korea
| | - Chul-Hong Park
- Research Division for Biotechnology, Advanced Radiation Technology Institute (ARTI), Korea Atomic Energy Insitute (KAERI), Jeongeup-si, Jeollabuk-do 580-185, Republic of Korea
| | - Hyo Jin Choi
- Research Division for Biotechnology, Advanced Radiation Technology Institute (ARTI), Korea Atomic Energy Insitute (KAERI), Jeongeup-si, Jeollabuk-do 580-185, Republic of Korea
| | - Young-Hyeh Ko
- Department of Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Gangnam-gu, Seoul 135-710, Republic of Korea
| | - Hyoung-Woo Bai
- Research Division for Biotechnology, Advanced Radiation Technology Institute (ARTI), Korea Atomic Energy Insitute (KAERI), Jeongeup-si, Jeollabuk-do 580-185, Republic of Korea
| | - Hyung-Sik Kang
- School of Biological Sciences and Technology, Chonnam National University, Buk-gu, Gwangju 500-757, Republic of Korea
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Kim SM, Park CM, Yoo JH, Kim K. Development of a finger-like mechanism of end-effector for micro surgery. Annu Int Conf IEEE Eng Med Biol Soc 2017; 2016:5224-5227. [PMID: 28269442 DOI: 10.1109/embc.2016.7591905] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Neurosurgery had been considered nearly impossible due to its technical difficulty and the danger to its special target organ, but with endoscopic methods, many such surgeries can be made safely through the nose. Endoscopic neurosurgery is limited by available instruments, however, and there remain some areas of the human body inaccessible to standard surgical tools. To overcome some of these limitations, in this study we developed a simple mechanism that could form a high curvature in a narrow space. The end product is a finger-like mechanism consisting of five body parts and four joints. All body parts are connected in series, having a total length of 20mm and a diameter of φ4mm. A four-bar linkage internally connects the body parts and joints, and a nitinol backbone was used to improve repeatability. The first joint is driven by a rod or wire, and the shape of the mechanism is determined by rotating the first joint, because the position of each joint depends on the position of the joint before it. The study verified that an image sensor in the end of the finger-like mechanism has a wider range of view, 210 degrees than a conventional endoscope of 100 degrees. Finally, skull model simulation suggests that this device could be used in real neurosurgical applications.
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Kim JJ, Kim D, Yim JY, Kang JH, Han KH, Kim SM, Hwang KR, Ku SY, Suh CS, Kim SH, Choi YM. Polycystic ovary syndrome with hyperandrogenism as a risk factor for non-obese non-alcoholic fatty liver disease. Aliment Pharmacol Ther 2017; 45:1403-1412. [PMID: 28370150 DOI: 10.1111/apt.14058] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 12/13/2016] [Accepted: 03/04/2017] [Indexed: 12/13/2022]
Abstract
BACKGROUND Non-alcoholic fatty liver disease (NAFLD) is known to be associated with polycystic ovary syndrome (PCOS). However, most studies investigated the prevalence of NAFLD in obese PCOS patients. AIM To compare the prevalence of non-obese NAFLD in women with or without PCOS, and to assess an independent association between PCOS and NAFLD in a non-obese Asian cohort. METHODS This was a case-control study using a prospective PCOS cohort. After subjects with other potential causes of chronic liver disease were excluded, 275 non-obese women with PCOS and 892 non-obese controls were enrolled. NAFLD was determined by hepatic ultrasonography. Main outcomes were the prevalence of NAFLD on hepatic ultrasonography between non-obese women with or without PCOS, and an independent association between non-obese NAFLD and PCOS. RESULTS Non-obese women with PCOS had a significantly higher prevalence of NAFLD than those without PCOS (5.5% vs. 2.8%, P = 0.027). PCOS was associated with non-obese NAFLD (odds ratio: 2.62, 95% confidence intervals: 1.25-5.48) after adjustment for age and body mass index (BMI). In women with PCOS, the level of androgenicity represented by free testosterone or free androgen index was associated with NAFLD after adjustment for age, BMI, lipid profile, insulin resistance or glycaemic status. CONCLUSIONS Non-obese NAFLD is more prevalent in women with polycystic ovary syndrome than in those without. In non-obese patients with polycystic ovary syndrome, hyperandrogenemia may be an independent risk factor for non-obese NAFLD.
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Affiliation(s)
- J J Kim
- Department of Obstetrics and Gynecology, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea.,The Institute of Reproductive Medicine and Population, Medical Research Center, Seoul National University College of Medicine, Seoul, Korea
| | - D Kim
- Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea.,Division of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, CA, USA
| | - J Y Yim
- Department of Internal Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - J H Kang
- Department of Radiology, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - K H Han
- Department of Obstetrics and Gynecology, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - S M Kim
- Department of Obstetrics and Gynecology, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - K R Hwang
- Department of Obstetrics and Gynecology, Seoul Municipal Boramae Hospital, Seoul, Korea
| | - S Y Ku
- The Institute of Reproductive Medicine and Population, Medical Research Center, Seoul National University College of Medicine, Seoul, Korea.,Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea
| | - C S Suh
- The Institute of Reproductive Medicine and Population, Medical Research Center, Seoul National University College of Medicine, Seoul, Korea.,Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea
| | - S H Kim
- The Institute of Reproductive Medicine and Population, Medical Research Center, Seoul National University College of Medicine, Seoul, Korea.,Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea
| | - Y M Choi
- The Institute of Reproductive Medicine and Population, Medical Research Center, Seoul National University College of Medicine, Seoul, Korea.,Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea
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Kim EM, Lee EH, Lee HY, Choi HR, Ji KY, Kim SM, Kim KD, Kang HS. Axl signaling induces development of natural killer cells in vitro and in vivo. Protoplasma 2017; 254:1091-1101. [PMID: 27549806 DOI: 10.1007/s00709-016-1016-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2016] [Accepted: 08/07/2016] [Indexed: 06/06/2023]
Abstract
Natural killer (NK) cells have been well known to play a critical role in innate immunity, but they are also capable of regulating adaptive immunity through the induction of T cell-mediated memory response and B cell-mediated autoimmune response. NK cells are differentiated from hematopoietic stem cells (HSCs) in the bone marrow (BM), and a series of surface molecules are expressed on NK cells in a differentiation stage-specific manner. Axl receptor tyrosine kinase is originally identified as homeostatic regulators for antigen-presenting cells, and its ligand, growth-arrest-specific gene 6 (Gas6), has been reported to promote cell survival, proliferation, and migration, but their regulatory role in the development and effector function of NK cells is not yet fully understood. In this study, to investigate whether Axl is required for the regulation of NK cell development, the expression of mature NK (mNK) cell-specific receptors and NK cell-associated genes was analyzed in the differentiated HSCs-derived NK cells in vitro and the NK cells harvested from Axl-/- mice. We found that agonistic anti-Axl antibody or recombinant Gas6 specifically upregulated the expression of mNK cell-specific receptors, such as LY49A, Ly49G2, Ly49C/F/I, NKG2A/C/E (1.5- to 3.5-fold increase), and NK cell-associated genes, such as IL-2Rβ (2.3- or 2.4-fold increase), Perforin (4.1- or 2.1-fold increase), IL-15Rα (2.14- or 2.04-fold increase), and IFN-γ (3.3- or 2.8-fold increase) compared to each isotype control, whereas it was abrogated by treatment of Axl-Ig. Anti-Axl antibody or rGas6 also induced a 2.5- or 1.9-fold increase in the proliferation of developing NK cells compared to each control, respectively. mNK cell populations expressing mNK cell-specific receptors were reduced about twofold in NK cells differentiated from HSCs of Axl-/- mice compared with those of wild-type mice. Furthermore, the triggering of Axl signaling by agonistic anti-Axl antibody promoted the cytolytic activity (1.5- to 1.9-fold increase) against target tumor cells. In B16F10 melanoma-bearing mice, the number of metastatic colonies was decreased by 83 % by the administration of mNK cells treated with anti-Axl antibody compared to control Ig. These data suggest that Axl plays an essential role in the regulation of NK cell development as well as NK effector function.
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Affiliation(s)
- Eun-Mi Kim
- Internal Medicine, University of Iowa and VA Medical Center, Iowa City, IA, 52246, USA
| | - Eun-Hee Lee
- Advanced Radiation Technology Institute (ARTI), Korea Atomic Energy Institute (KAERI), 29 Geumgu-gil, Jeongeup-si, Jeollabuk-do, 580-185, South Korea
| | - Hwa-Yeon Lee
- Medical Device Development Center, Daegu-Gyeongbuk Medical Innovation Foundation, Cheombok-ro 80, Dong-gu, Daegu, 41061, South Korea
| | - Ha-Rim Choi
- Department of Nursing, Nambu University, 23 Chumdan Jungang-ro, Gwangsan-gu, Gwangju, 506-706, South Korea
| | - Kon-Young Ji
- School of Biological Sciences and Technology, Chonnam National University, 300 Yongbong-dong, Bukgu, Gwangju, 500-757, Republic of Korea
| | - Su-Man Kim
- School of Biological Sciences and Technology, Chonnam National University, 300 Yongbong-dong, Bukgu, Gwangju, 500-757, Republic of Korea
| | - Kwang Dong Kim
- Division of Applied Life Science, PMBBRC, Gyeongsang National University, Jinju, 660-701, South Korea
| | - Hyung-Sik Kang
- School of Biological Sciences and Technology, Chonnam National University, 300 Yongbong-dong, Bukgu, Gwangju, 500-757, Republic of Korea.
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Lee YS, Lee KH, Park EK, Lee YK, Kim SM. Postoperative Pain After Total Laparoscopic Hysterectomy: A Comparison of Transumbilical Single-Port Access and Conventional Three-Port Laparoscopic Surgery. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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34
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McCracken AN, McMonigle RJ, Tessier J, Fransson R, Perryman MS, Chen B, Keebaugh A, Selwan E, Barr SA, Kim SM, Roy SG, Liu G, Fallegger D, Sernissi L, Brandt C, Moitessier N, Snider AJ, Clare S, Müschen M, Huwiler A, Kleinman MT, Hanessian S, Edinger AL. Phosphorylation of a constrained azacyclic FTY720 analog enhances anti-leukemic activity without inducing S1P receptor activation. Leukemia 2016; 31:669-677. [PMID: 27573555 PMCID: PMC5332311 DOI: 10.1038/leu.2016.244] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 07/19/2016] [Accepted: 08/22/2016] [Indexed: 02/07/2023]
Abstract
The frequency of poor outcomes in relapsed leukemia patients underscores the need for novel therapeutic approaches. The FDA-approved immunosuppressant FTY720 limits leukemia progression by activating protein phosphatase 2A and restricting nutrient access. Unfortunately, FTY720 cannot be re-purposed for use in cancer patients due to on-target toxicity associated with S1P receptor activation at the elevated, anti-neoplastic dose. Here we show that the constrained azacyclic FTY720 analog SH-RF-177 lacks S1P receptor activity but maintains anti-leukemic activity in vitro and in vivo. SH-RF-177 was not only more potent than FTY720, but killed via a distinct mechanism. Phosphorylation is dispensable for FTY720’s anti-leukemic actions. However, chemical biology and genetic approaches demonstrated that the sphingosine kinase 2- (SPHK2) mediated phosphorylation of SH-RF-177 led to engagement of a pro-apoptotic target and increased potency. The cytotoxicity of membrane-permeant FTY720 phosphonate esters suggests that the enhanced potency of SH-RF-177 stems from its more efficient phosphorylation. The tight inverse correlation between SH-RF-177 IC50 and SPHK2 mRNA expression suggests a useful biomarker for SH-RF-177 sensitivity. In summary, these studies indicate that FTY720 analogs that are efficiently phosphorylated but fail to activate S1P receptors may be superior anti-leukemic agents compared to compounds that avoid cardiotoxicity by eliminating phosphorylation.
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Affiliation(s)
- A N McCracken
- Department of Developmental and Cell Biology, University of California, Irvine, CA, USA
| | - R J McMonigle
- Department of Developmental and Cell Biology, University of California, Irvine, CA, USA
| | - J Tessier
- Department of Chemistry, Université de Montréal, Montreal, Quebec, Canada
| | - R Fransson
- Department of Chemistry, Université de Montréal, Montreal, Quebec, Canada
| | - M S Perryman
- Department of Chemistry, Université de Montréal, Montreal, Quebec, Canada
| | - B Chen
- Department of Chemistry, Université de Montréal, Montreal, Quebec, Canada
| | - A Keebaugh
- Department of Community and Environmental Medicine, School of Medicine, University of California, Irvine, CA, USA
| | - E Selwan
- Department of Developmental and Cell Biology, University of California, Irvine, CA, USA
| | - S A Barr
- Department of Developmental and Cell Biology, University of California, Irvine, CA, USA
| | - S M Kim
- Department of Developmental and Cell Biology, University of California, Irvine, CA, USA
| | - S G Roy
- Department of Developmental and Cell Biology, University of California, Irvine, CA, USA
| | - G Liu
- Department of Developmental and Cell Biology, University of California, Irvine, CA, USA
| | - D Fallegger
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - L Sernissi
- Department of Chemistry, Université de Montréal, Montreal, Quebec, Canada
| | - C Brandt
- The Wellcome Trust Sanger Genome Campus, Wellcome Trust Sanger Institute, Hinxton, Cambridge, UK
| | - N Moitessier
- Department of Chemistry, McGill University, Montréal, Québec, Canada
| | - A J Snider
- Cancer Center and Department of Medicine, Stony Brook University, Stony Brook, NY, USA.,Northport Veterans Affairs Medical Center, Northport, NY, USA
| | - S Clare
- The Wellcome Trust Sanger Genome Campus, Wellcome Trust Sanger Institute, Hinxton, Cambridge, UK
| | - M Müschen
- Department of Laboratory Medicine, University of California, San Francisco, CA, USA
| | - A Huwiler
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - M T Kleinman
- Department of Community and Environmental Medicine, School of Medicine, University of California, Irvine, CA, USA
| | - S Hanessian
- Department of Chemistry, Université de Montréal, Montreal, Quebec, Canada.,Department of Pharmaceutical Sciences, University of California Irvine, Irvine, CA, USA
| | - A L Edinger
- Department of Developmental and Cell Biology, University of California, Irvine, CA, USA
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Jung SA, Lee DH, Moon JH, Hong SW, Shin JS, Hwang IY, Shin YJ, Kim JH, Gong EY, Kim SM, Lee EY, Lee S, Kim JE, Kim KP, Hong YS, Lee JS, Jin DH, Kim T, Lee WJ. Corrigendum to 'L-Ascorbic acid can abrogate SVCT-2-dependent cetuximab resistance mediated by mutant KRAS in human colon cancer cells': [Free Radic. Biol. Med. 95 (2016) 200-208]. Free Radic Biol Med 2016; 97:620. [PMID: 27476024 DOI: 10.1016/j.freeradbiomed.2016.07.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- S A Jung
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Innovative Cancer Research, Asan Institute for Life Science, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea
| | - D H Lee
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Innovative Cancer Research, Asan Institute for Life Science, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Biomedical Science and Engineering Interdisciplinary Program, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, Republic of Korea
| | - J H Moon
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Innovative Cancer Research, Asan Institute for Life Science, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea
| | - S W Hong
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Innovative Cancer Research, Asan Institute for Life Science, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea
| | - J S Shin
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Innovative Cancer Research, Asan Institute for Life Science, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea
| | - I Y Hwang
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Innovative Cancer Research, Asan Institute for Life Science, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea
| | - Y J Shin
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Innovative Cancer Research, Asan Institute for Life Science, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea
| | - J H Kim
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Innovative Cancer Research, Asan Institute for Life Science, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea
| | - E Y Gong
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Innovative Cancer Research, Asan Institute for Life Science, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea
| | - S M Kim
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Innovative Cancer Research, Asan Institute for Life Science, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea
| | - E Y Lee
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Innovative Cancer Research, Asan Institute for Life Science, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea
| | - S Lee
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Innovative Cancer Research, Asan Institute for Life Science, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea
| | - J E Kim
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Innovative Cancer Research, Asan Institute for Life Science, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea
| | - K P Kim
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Innovative Cancer Research, Asan Institute for Life Science, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea
| | - Y S Hong
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Innovative Cancer Research, Asan Institute for Life Science, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea
| | - J S Lee
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Innovative Cancer Research, Asan Institute for Life Science, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea
| | - D H Jin
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Innovative Cancer Research, Asan Institute for Life Science, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Department of Convergence Medicine, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea.
| | - T Kim
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Innovative Cancer Research, Asan Institute for Life Science, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea.
| | - W J Lee
- Department of Anatomy and Tumor Immunity Medical Research Center, Seoul National University College of Medicine, Seoul 110-744, Republic of Korea
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Park HJ, Jang H, Kim JH, Lee JH, Shin HY, Kim SM, Park KD, Yim SV, Lee JH, Choi YC. Discovery of pathogenic variants in a large Korean cohort of inherited muscular disorders. Clin Genet 2016; 91:403-410. [PMID: 27363342 DOI: 10.1111/cge.12826] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 06/06/2016] [Accepted: 06/17/2016] [Indexed: 01/31/2023]
Abstract
Inherited muscular disorders (IMDs) are clinically and genetically heterogeneous genetic disorders. We investigated the mutational spectrum and genotype-phenotype correlations in Korean patients with IMD. We developed a targeted panel of 69 known IMD genes and recruited a total of 209 Korean patients with IMD. Targeted capture sequencing identified 994 different variants. Among them, 98 variants were classified as pathogenic/likely pathogenic variants; 38 were novel variations. A total of 39 patients had the pathogenic/likely pathogenic variants. Among them, 75 (36%) patients were genetically confirmed, and 18 (9%) patients had one heterozygous variant of recessive myopathy. However, two genetically confirmed patients had an additional heterozygous variant of another recessive myopathy. Four patients with one heterozygous variant of a recessive myopathy showed different phenotypes, compared with the known phenotype of the identified gene. The major causative genes of Korean patients with IMDs were DMD (19 patients), COL6A1 (9), DYSF (9), GNE (7), LMNA (7), CAPN3 (6), and RYR1 (5). This study showed the mutational and clinical spectra in Korean patients with IMD and confirmed the usefulness of strategies utilizing targeted sequencing.
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Affiliation(s)
- H J Park
- Department of Neurology, Mokdong Hospital, Ewha Womans University School of Medicine, Seoul, Korea.,Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
| | - H Jang
- Department of Chemistry, Yonsei University, Seoul, Korea
| | - J H Kim
- Department of Clinical Pharmacology and Therapeutics, College of Medicine, Kyung Hee University, Seoul, Korea
| | - J H Lee
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
| | - H Y Shin
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
| | - S M Kim
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
| | - K D Park
- Department of Neurology, Mokdong Hospital, Ewha Womans University School of Medicine, Seoul, Korea
| | - S-V Yim
- Department of Clinical Pharmacology and Therapeutics, College of Medicine, Kyung Hee University, Seoul, Korea
| | - J H Lee
- Department of Clinical Pharmacology and Therapeutics, College of Medicine, Kyung Hee University, Seoul, Korea
| | - Y-C Choi
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
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Li H, Kim SM, Savkovic V, Jin SA, Choi YD, Yun SJ. Expression of soluble adenylyl cyclase in acral melanomas. Clin Exp Dermatol 2015; 41:425-9. [PMID: 26290224 DOI: 10.1111/ced.12730] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/30/2015] [Indexed: 02/05/2023]
Abstract
Soluble adenylyl cyclase (sAC) regulates melanocytic cells, and is a diagnostic marker for pigmented skin lesions. Because only a few studies on sAC expression in acral melanomas have been performed, we investigated the histopathological significance of sAC expression in 33 cases of acral melanoma, and assessed its diagnostic value in distinguishing melanoma in situ (MIS, n = 17) from acral invasive melanomas (n = 16) and melanocytic naevi (n = 11). Acral melanomas exhibited more marked nuclear immunopositivity compared with acral melanocytic naevi. sAC expression significantly correlated with the nuclear morphology of melanocytes and melanoma cells, namely, hyperchromatic nuclei and prominent nucleoli within vesicular nuclei. sAC expression was predominantly observed in the hyperchromatic nuclei of MIS and the prominent nucleoli invasive melanomas, respectively. In vitro culture models of melanocytes and melanoma cell lines exhibited sAC staining patterns similar to those of acral melanomas. Differentiation induction showed that nuclear and nucleolar expression varied depending on cell morphology. sAC immunostaining may be useful for the differential diagnosis of acral melanocytic lesions, and sAC expressed in the nucleus and nucleolus might be related to cytological and nuclear changes associated with invasion and progression of acral melanomas.
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Affiliation(s)
- H Li
- Department of Dermatology, Chonnam National University Medical School, Gwangju, South Korea.,Department of Pathology, Chonnam National University Medical School, Gwangju, South Korea
| | - S M Kim
- Department of Dermatology, Chonnam National University Medical School, Gwangju, South Korea
| | - V Savkovic
- Translational Centre for Regenerative Medicine, University of Leipzig, Germany
| | - S A Jin
- Department of Dermatology, Chonnam National University Medical School, Gwangju, South Korea
| | - Y D Choi
- Translational Centre for Regenerative Medicine, University of Leipzig, Germany
| | - S J Yun
- Department of Dermatology, Chonnam National University Medical School, Gwangju, South Korea
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Lee SM, Park JS, Norwitz ER, Oh S, Kim EJ, Kim SM, Lee J, Kim BJ, Park CW, Jun JK. Mid-trimester amniotic fluid pro-inflammatory biomarkers predict the risk of spontaneous preterm delivery in twins: a retrospective cohort study. J Perinatol 2015; 35:542-6. [PMID: 25856763 DOI: 10.1038/jp.2015.29] [Citation(s) in RCA: 14] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Revised: 02/09/2015] [Accepted: 02/23/2015] [Indexed: 12/31/2022]
Abstract
OBJECTIVE To evaluate the association between the concentrations of immune-related proteins in mid-trimester amniotic fluid (AF) and the subsequent risk of spontaneous preterm delivery in twins. STUDY DESIGN The study population consisted of consecutive women with a twin pregnancy who underwent clinically indicated genetic amniocentesis at 15 to 20 weeks, and had a subsequent spontaneous delivery in the early preterm period (<32 weeks (cases)) or at term (37 to 42 weeks (controls)). AF was analyzed for cytokines (interleukin (IL)-1ß, IL-2, IL-4, IL-5, IL-6, IL-8, IL-10, IL-12, IL-13 and IL-15, interferon-γ, tumor necrosis factor-α), matrix metalloproteinases (MMP-1, MMP-2, MMP-3, MMP-8, MMP-9 and MMP-12), and chemokines (complement factor-D/Adipsin, Serpin E1/PAI-1, Adiponectin/Acrp30, C-Reactive Protein, CCL2/MCP-1, Leptin, Resistin) using multiplex immunoassay kits. The association between AF protein levels and subsequent early preterm birth were examined. RESULT A total of 96 sets of twins were enrolled, including 17 early preterm birth cases and 79 term controls. AF concentrations of IL-6, IL-8, MMP-3, MMP-8 and MMP-9, and CCL2/MCP-1 were significantly higher in cases than controls. Among these analytes, the combination of AF IL-8 and MMP-9 values had the highest predictive value for early preterm birth. The risk was 8% (10/132) for IL-8<1200 pg ml(-1) and MMP-9<1000 pg ml(-1), 30% (15/50) for IL-8>1200 pg ml(-1) or MMP-9>1000 pg ml(-1), and 90% (9/10) for IL-8>1200 pg ml(-1) and MMP-9>1000 pg ml(-1) (P<0.001). CONCLUSION High concentrations of IL-8 and MMP-9 in mid-trimester AF in twins predicted well the risk of early preterm birth.
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Affiliation(s)
- S M Lee
- 1] Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea [2] Department of Obstetrics and Gynecology, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, Korea
| | - J S Park
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea
| | - E R Norwitz
- Department of Obstetrics and Gynecology, Tufts University School of Medicine, Boston, MA, USA
| | - S Oh
- Department of Biostatistics, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, Korea
| | - E J Kim
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea
| | - S M Kim
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea
| | - J Lee
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea
| | - B J Kim
- 1] Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea [2] Department of Obstetrics and Gynecology, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, Korea
| | - C-W Park
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea
| | - J K Jun
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea
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Abstract
Many medical devices, such as pulse oximetry, ventilation masks and other splints are put on critically ill patients. Although these devices are designed to deliver relatively low physical pressure to the skin of the patient, they can still cause pressure ulcers (PUs) in critically ill patients. There are reports of medical device-related PUs on the face. Here we describe forehead skin necrosis caused by the securing helmet for the Sengstaken-Blakemore tube. It is difficult to detect this kind of PU early, because most of the patients have decreased mental status or delirium due to varix bleeding. For this reason, medical staff should be aware of the risk of developing a PU by the device and take preventive measures accordingly.
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Affiliation(s)
- S M Kim
- The Catholic University of Korea, Bucheon St. Mary's Hospital
| | - R K Ju
- The Catholic University of Korea, Bucheon St. Mary's Hospital
| | - J H Lee
- The Catholic University of Korea, Bucheon St. Mary's Hospital
| | - Y J Jun
- The Catholic University of Korea, Bucheon St. Mary's Hospital
| | - Y J Kim
- The Catholic University of Korea, Bucheon St. Mary's Hospital
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Choi HY, Kim SM, Jang M, Yun BL, Ahn HS, Park SY, Kim SW, Kang EY. Nodular Fasciitis of the Breast: A Case and Literature Review. Ultraschall Med 2015; 36:290-291. [PMID: 24854130 DOI: 10.1055/s-0034-1366340] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Nodular fasciitis is a benign fibroblastic proliferation in soft tissue that is most commonly found in the upper extremities, trunk, head, and neck region. Its occurrence in the breast has been rarely reported. The most characteristic features are the sudden appearance and rapid growth of a palpable lesion. Nodular fasciitis can clinically, radiologically, and histopathologically mimic a breast carcinoma. We present a case of nodular fasciitis of the breast and a review of the relevant literature.
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Lee SH, Kim SM, Jang M, Yun BL, Kang E, Kim SW, Park SY, Ahn HS, Chang JH, Yoo Y, Song TK, Moon WK. Role of second-look ultrasound examinations for MR-detected lesions in patients with breast cancer. Ultraschall Med 2015; 36:140-148. [PMID: 25750138 DOI: 10.1055/s-0034-1399143] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
PURPOSE To assess the clinical value of second-look ultrasound (US) examination for the evaluation of additional enhancing lesions detected on magnetic resonance (MR) imaging. MATERIALS AND METHODS Between May 2008 and February 2011, 794 consecutive patients with histologically confirmed breast cancer underwent breast MR imaging. We included 101 patients with 132 additional enhancing breast lesions detected on MR imaging who underwent second-look US. The imaging features and lesion category according to the Breast Imaging and Reporting and Data System (BI-RADS) were assessed with MR and US imaging, respectively. RESULTS According to the BI-RADS system, 67 lesions (50.8 %) were classified as category 0, 33 lesions (25.0 %) as category 3, and 32 lesions (24.2 %) as category 4. Of the 67 indeterminate lesions on MR imaging, 34 (50.7 %) were demonstrated on second-look US. 11 of these 34 lesions showed suspicious sonographic features, including 1 lesion that showed malignancy (9.1 %, 1/11). Most of the suspicious lesions on MR imaging (26 of 32 BI-RADS category 4 lesions, 81.3 %) were demonstrated on second-look US, and 17 were malignant (65.4 %, 17/26). Of the 6 BI-RADS category 4 lesions without sonographic correlation, 1 was malignant (16.7 %, 1/6). CONCLUSION Second-look US examination was useful for evaluating MR-detected lesions in patients with breast cancer.
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MESH Headings
- Adult
- Aged
- Biopsy, Large-Core Needle
- Breast/pathology
- Breast Neoplasms/classification
- Breast Neoplasms/diagnosis
- Breast Neoplasms/pathology
- Carcinoma, Ductal, Breast/classification
- Carcinoma, Ductal, Breast/diagnosis
- Carcinoma, Ductal, Breast/pathology
- Carcinoma, Intraductal, Noninfiltrating/classification
- Carcinoma, Intraductal, Noninfiltrating/diagnosis
- Carcinoma, Intraductal, Noninfiltrating/pathology
- Carcinoma, Lobular/classification
- Carcinoma, Lobular/diagnosis
- Carcinoma, Lobular/pathology
- Female
- Humans
- Image Interpretation, Computer-Assisted
- Imaging, Three-Dimensional
- Magnetic Resonance Imaging
- Middle Aged
- Neoplasm Invasiveness/diagnosis
- Neoplasm Invasiveness/pathology
- Neoplasms, Multiple Primary/classification
- Neoplasms, Multiple Primary/diagnosis
- Neoplasms, Multiple Primary/pathology
- Retrospective Studies
- Sensitivity and Specificity
- Ultrasonography, Interventional
- Ultrasonography, Mammary
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Affiliation(s)
- S H Lee
- Department of Radiology, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea, Republic of
| | - S M Kim
- Radiology, Seoul National University Bundang Hosipital, Seongnam, Korea, Republic of
| | - M Jang
- Radiology, Seoul National University Bundang Hosipital, Seongnam, Korea, Republic of
| | - B L Yun
- Radiology, Seoul National University Bundang Hosipital, Seongnam, Korea, Republic of
| | - E Kang
- Surgery, Seoul National University Bundang Hospital, Seongnam-si, Korea, Republic of
| | - S W Kim
- Surgery, Seoul National University Bundang Hospital, Seongnam-si, Korea, Republic of
| | - S Y Park
- Pathology, Seoul National University Bundang Hospital, Seongnam-si, Korea, Republic of
| | - H S Ahn
- Radiology, Chung-Ang University Hospital, Seoul, Korea, Republic of
| | - J H Chang
- Department of Electronic Engineering, Sogang University, Seoul, Korea, Republic of
| | - Y Yoo
- Department of Electronic Engineering, Sogang University, Seoul, Korea, Republic of
| | - T K Song
- Department of Electronic Engineering, Sogang University, Seoul, Korea, Republic of
| | - W K Moon
- Department of Radiology, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea, Republic of
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Marín AG, Núñez CG, Rodríguez P, Shen G, Kim SM, Kung P, Piqueras J, Pau JL. Continuous-flow system and monitoring tools for the dielectrophoretic integration of nanowires in light sensor arrays. Nanotechnology 2015; 26:115502. [PMID: 25721912 DOI: 10.1088/0957-4484/26/11/115502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Although nanowires (NWs) may improve the performance of many optoelectronic devices such as light emitters and photodetectors, the mass commercialization of these devices is limited by the difficult task of finding reliable and reproducible methods to integrate the NWs on foreign substrates. This work shows the fabrication of zinc oxide NWs photodetectors on conventional glass using transparent conductive electrodes to effectively integrate the NWs at specific locations by dielectrophoresis (DEP). The paper describes the careful preparation of NW dispersions by sedimentation and the dielectrophoretic alignment of NWs in a home-made system. This system includes an impedance technique for the assessment of the alignment quality in real time. Following this procedure, ultraviolet photodetectors based on the electrical contacts formed by the DEP process on the transparent electrodes are fabricated. This cost-effective mean of contacting NWs enables front-and back-illumination operation modes, the latter eliminating shadowing effects caused by the deposition of metals. The electro-optical characterization of the devices shows uniform responsivities in the order of 106 A W(-1) below 390 nm under both modes, as well as, time responses of a few seconds.
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Carinci F, Van Gool K, Mainz J, Veillard J, Pichora EC, Januel JM, Arispe I, Kim SM, Klazinga NS. Towards actionable international comparisons of health system performance: expert revision of the OECD framework and quality indicators. Int J Qual Health Care 2015; 27:137-46. [PMID: 25758443 DOI: 10.1093/intqhc/mzv004] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/08/2015] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVE To review and update the conceptual framework, indicator content and research priorities of the Organisation for Economic Cooperation and Development's (OECD) Health Care Quality Indicators (HCQI) project, after a decade of collaborative work. DESIGN A structured assessment was carried out using a modified Delphi approach, followed by a consensus meeting, to assess the suite of HCQI for international comparisons, agree on revisions to the original framework and set priorities for research and development. SETTING International group of countries participating to OECD projects. PARTICIPANTS Members of the OECD HCQI expert group. RESULTS A reference matrix, based on a revised performance framework, was used to map and assess all seventy HCQI routinely calculated by the OECD expert group. A total of 21 indicators were agreed to be excluded, due to the following concerns: (i) relevance, (ii) international comparability, particularly where heterogeneous coding practices might induce bias, (iii) feasibility, when the number of countries able to report was limited and the added value did not justify sustained effort and (iv) actionability, for indicators that were unlikely to improve on the basis of targeted policy interventions. CONCLUSIONS The revised OECD framework for HCQI represents a new milestone of a long-standing international collaboration among a group of countries committed to building common ground for performance measurement. The expert group believes that the continuation of this work is paramount to provide decision makers with a validated toolbox to directly act on quality improvement strategies.
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Affiliation(s)
- F Carinci
- National Agency for Regional Health Services (AGENAS), Rome, Italy University of Surrey, Guildford, United Kingdom
| | - K Van Gool
- Organisation for Economic Cooperation and Development (OECD), Paris, France Centre for Health Economics Research and Evaluation, University of Technology, Sydney, NSW, Australia
| | - J Mainz
- University of Southern Denmark, Odense, Denmark
| | - J Veillard
- Canadian Institute for Health Information (CIHI), Toronto, Canada
| | - E C Pichora
- Canadian Institute for Health Information (CIHI), Toronto, Canada
| | - J M Januel
- University of Lausanne, Lausanne, Switzerland
| | - I Arispe
- National Center for Health Statistics, Washington, DC, USA
| | - S M Kim
- Health Insurance Review and Assessment Service, Seoul, Korea
| | - N S Klazinga
- Organisation for Economic Cooperation and Development (OECD), Paris, France
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Lim AY, Lee GY, Jang SY, Gwag HB, Choi SH, Jeon ES, Cha HS, Sung K, Kim YW, Kim SM, Choe YH, Kim DK. Gender differences in clinical and angiographic findings of patients with Takayasu arteritis. Clin Exp Rheumatol 2015; 33:S-132-7. [PMID: 26016764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Accepted: 05/04/2015] [Indexed: 06/04/2023]
Abstract
OBJECTIVES Because Takayasu arteritis (TA) predominantly affects females, few data regarding gender differences have been reported. The aim of the present study is to describe clinical features and angiographic findings of patients with TA according to gender. METHODS According to the 1990 American College of Rheumatology criteria, 294 patients were diagnosed with TA between September 1994 and April 2014 at a single tertiary hospital. We reviewed clinical, laboratory, and radiologic data at the time of diagnosis. RESULTS Among the 294 patients studied, 257 (87.4%) were female (male:female ratio=1:6.9). Female patients had a higher tendency to exhibit blood pressure differences between arms (p=0.595) and a weak pulse at the brachial artery (p=0.063). In male patients, we observed higher serum creatinine levels (p=0.038) and hypertension more frequently (p=0.061) than in females. Females exhibited more common lesions in the thoracic aorta and its branches, while males had more frequent lesions in the abdominal aorta and its branches. An analysis of angiographic classification according to the International TA Conference in Tokyo 1994 classification revealed that male patients had a higher incidence of type IV and females showed a higher incidence of types I, IIa, and IIb. CONCLUSIONS Female patients with TA have more frequent involvement of the thoracic aorta and its branches, whereas involvement of the abdominal aorta and its branches is more common in males. Considering these gender-specific differences, adjustment of diagnostic criteria for TA according to gender may be necessary.
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Affiliation(s)
- A Y Lim
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - G Y Lee
- Division of Cardiology, Department of Medicine, Vascular Center, Heart Center, Center for Cardiovascular and Stroke Imaging, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - S Y Jang
- Division of Cardiology, Department of Medicine, Vascular Center, Heart Center, Center for Cardiovascular and Stroke Imaging, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - H B Gwag
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - S H Choi
- Division of Cardiology, Department of Medicine, Vascular Center, Heart Center, Center for Cardiovascular and Stroke Imaging, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - E-S Jeon
- Division of Cardiology, Department of Medicine, Vascular Center, Heart Center, Center for Cardiovascular and Stroke Imaging, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - H-S Cha
- Division of Rheumatology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - K Sung
- Department of Thoracic and Cardiovascular Surgery, Vascular Center, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Y-W Kim
- Division of Vascular Surgery, Department of Surgery, Vascular Center, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - S M Kim
- Department of Radiology and Center for Imaging Science, Center for Cardiovascular and Stroke Imaging, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Y H Choe
- Department of Radiology and Center for Imaging Science, Center for Cardiovascular and Stroke Imaging, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - D-K Kim
- Division of Cardiology, Department of Medicine, Vascular Center, Heart Center, Center for Cardiovascular and Stroke Imaging, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
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Lee KH, Park M, Ji KY, Lee HY, Jang JH, Yoon IJ, Oh SS, Kim SM, Jeong YH, Yun CH, Kim MK, Lee IY, Choi HR, Ko KS, Kang HS. Bacterial β-(1,3)-glucan prevents DSS-induced IBD by restoring the reduced population of regulatory T cells. Immunobiology 2014; 219:802-12. [PMID: 25092569 DOI: 10.1016/j.imbio.2014.07.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [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: 01/27/2014] [Revised: 05/06/2014] [Accepted: 07/12/2014] [Indexed: 02/07/2023]
Abstract
Bacterial β-(1,3)-glucan has more advantages in terms of cost, yield and efficiency than that derived from mushrooms, plants, yeasts and fungi. We have previously developed a novel and high-yield β-(1,3)-glucan produced by Agrobacterium sp. R259. This study aimed to elucidate the functional mechanism and therapeutic efficacy of bacterial β-(1,3)-glucan in dextran sulfate sodium (DSS)-induced inflammatory bowel disease (IBD).Mice were orally pretreated with bacterial β-(1,3)-glucan at daily doses of 2.5 or 5mg/kg for 2 weeks. After 6 days of DSS treatment, clinical assessment of IBD severity and expression of pro-inflammatory cytokines were evaluated. In vivo cell proliferation was examined by immunohistochemistry using Ki-67 and ER-TR7 antibodies. The frequency of regulatory T cells (Tregs) was analyzed by flow cytometry. Natural killer (NK) activity and IgA level were evaluated using NK cytotoxicity assay and ELISA.The deterioration of body weight gain, colonic architecture, disease score and histological score was recovered in DSS-induced IBD mice when pretreated with bacterial β-(1,3)-glucan. The recruitment of macrophages and the gene expression of proinflammatory cytokines, such as IL-1β, IL-6 and IL-17A/F, were markedly decreased in the colon of β-(1,3)-glucan-pretreated mice. β-(1,3)-Glucan induced the recovery of Tregs in terms of their frequency in DSS-induced IBD mice. Intriguingly, β-(1,3)-glucan reversed the functional defects of NK cells and excessive IgA production in DSS-induced IBD mice.We conclude that bacterial β-(1,3)-glucan prevented the progression of DSS-induced IBD by recovering the reduction of Tregs, functional defect of NK cells and excessive IgA production.
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Affiliation(s)
- Kwang-Ho Lee
- School of Biological Sciences and Technology, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 500-75, Republic of Korea
| | - Min Park
- School of Biological Sciences and Technology, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 500-75, Republic of Korea
| | - Kon-Young Ji
- School of Biological Sciences and Technology, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 500-75, Republic of Korea
| | - Hwa-Youn Lee
- School of Biological Sciences and Technology, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 500-75, Republic of Korea
| | - Ji-Hun Jang
- School of Biological Sciences and Technology, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 500-75, Republic of Korea
| | - Il-Joo Yoon
- School of Biological Sciences and Technology, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 500-75, Republic of Korea
| | - Seung-Su Oh
- School of Biological Sciences and Technology, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 500-75, Republic of Korea
| | - Su-Man Kim
- School of Biological Sciences and Technology, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 500-75, Republic of Korea
| | - Yun-Hwa Jeong
- School of Biological Sciences and Technology, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 500-75, Republic of Korea
| | - Chul-Ho Yun
- School of Biological Sciences and Technology, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 500-75, Republic of Korea
| | - Mi-Kyoung Kim
- Naturence Co., Ltd. Tanchun Industrial Complex, Road 69, Tanchun-myeon, Gongju-City, Chungcheongnam-do, Republic of Korea
| | - In-Young Lee
- Naturence Co., Ltd. Tanchun Industrial Complex, Road 69, Tanchun-myeon, Gongju-City, Chungcheongnam-do, Republic of Korea
| | - Ha-Rim Choi
- Department of Food and Nutrition, Nambu University, Gwangju 506-706, Republic of Korea
| | - Ki-sung Ko
- Department of Medicine, Medical Research Institute, College of Medicine, Chung-Ang University, Republic of Korea
| | - Hyung-Sik Kang
- School of Biological Sciences and Technology, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 500-75, Republic of Korea.
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Lim SY, Kim YH, Kim CH, Cho MK, Kim JW, Kang WD, Kim SM, Cho HY, Ahn KY, Lee KH, Song TB. The effect of a Foley catheter balloon on cervical ripening. J OBSTET GYNAECOL 2014; 33:830-8. [PMID: 24219725 DOI: 10.3109/01443615.2013.831043] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The Foley catheter balloon may affect cervical ripening through changes in biochemical mediators by immunoassay and immunohistochemistry, when it is used for pre-induction cervical ripening. The aim of the study was to evaluate the changes in the biochemical mediators from the extra-amniotic space and immunohistochemistry in ripened cervical tissue after the insertion of a Foley catheter balloon (FCB) for pre-induction cervical ripening. A total of 18 pregnant women with a Bishop's score < 6, who were undergoing labour induction, were evaluated in this prospective study. The FCB was irrigated with 10 ml of phosphate buffered saline and the irrigant was collected 0, 2, 4 and 8 h after placement of the FCB or until spontaneous expulsion of the FCB occurred. Irrigant specimens were also collected from 10 spontaneous labouring (SL) women in the active phase of labour. The levels of interleukin (IL)-6, IL-8, matrix metalloproteinase (MMP)-8 and NO were measured. Cervical specimens were obtained from 12 women, including four undergoing induction; four SL and four non-pregnant (NP) women. Immunohistochemical staining was performed to localise hyaluronic acid synthase (HAS)-1, IL-6, IL-8, MMP-8, endothelial nitric oxide synthase (eNOS) and inducible NOS (iNOS). Results showed that the levels of IL-6, IL-8, and MMP-8 significantly increased over time in FCB group (p < 0.01). In the immunohistochemical analysis of cervical tissues, immunoreactivity of HAS-1 in the after FCB group was stronger than any of the other groups. The protein expressions of IL-6, IL-8, MMP-8, eNOS and iNOS were more prominent in the after FCB and SL groups than in the NP and the before FCB groups. iNOS was only observed in the after FCB and SL groups. It was concluded that FCB may affect cervical ripening through changes in biochemical mediators by immunoassay and immunohistochemistry, when it is used for pre-induction cervical ripening.
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Affiliation(s)
- S Y Lim
- Department of Obstetrics and Gynecology, Gachon University Gil Medical Center , Incheon
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Lee HC, Lee JH, Kim MK, Kil WH, Kim J, Lee JE, Kim SW, Nam SJ, Kim SM, Bae SY, Lee SK, Kim J. Abstract P2-18-04: No further axillary dissection in sentinel lymph node-negative breast cancer after neoadjuvant chemotherapy in patients with initial cytologically-proven axillary node metastasis. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-p2-18-04] [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
In patients with fine needle aspiration (FNA)-proven axillary lymph node metastasis at diagnosis (cN+), the current standard surgical procedure is axillary lymph node dissection (ALND) at definitive surgery after neoadjuvant chemotherapy (NAC). However, growing evidences suggest that SLNB after NAC is feasible and may demonstrate acceptable performance in selected patients. We performed sentinel lymph node biopsy in patients treated with cytologically-confirmed axillary lymph nodes metastases at presentation, who converted to a clinically negative axillary status after NAC (ycN0).
Patients and methods
We retrospectively evaluated 240 patients with invasive breast cancer with ultrasound-guided FNA-proven axillary nodal metastases at the time of diagnosis. All patients received NAC and underwent surgery at Samsung medical center between October 2007 and May 2013. Among these patients, 75 patients underwent SLNB. These patients converted to clinically node-negative disease (ycN0) after NAC on breast MRI or PET/CT scan. A combined detection technique was used with radioisotope and blue dye for the detection of SLN. Patients with negative SLN on frozen pathology and low clinical suspicion of metastasis during operation were not performed further ALND.
Results
The detection rate of SLNB was 93.3% (70/75), and median number of retrieved sentinel lymph nodes was 3.0 (range 1-8). False negative rate was 6.7% (1/15). Of these 75 patients, 35 (46.6%) patients had positive sentinel lymph nodes (ypN+) and underwent ALND. Thirty-five (46.6%) patients had tumor-free sentinel lymph nodes (ypN0sn) and 20 patients of them were followed without subsequent ALND. In these SLN-negative patients without further ALND, 9 patients were HER2-enriched subtypes and 9 patients, TNBC subtypes. Only two of them were Luminal B subtypes. The median follow-up period was 12.0 months (range 0-26 months) with 2 events; 1 regional recurrence in ipsilateral supraclavicular node and 1 systemic recurrence in brain on postoperative 7 months and 5 months, respectively. There has not occurred an ipsilateral axillary recurrence so far.
Conclusions Although the follow-up was not long enough to conclude, this study tried to demonstrate that SLNB after NAC was feasible and further ALND may not be necessary in patients with SLN-negative disease (ypN0sn).
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P2-18-04.
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Affiliation(s)
- HC Lee
- Samsung Medical Center, Seoul, Korea
| | - JH Lee
- Samsung Medical Center, Seoul, Korea
| | - MK Kim
- Samsung Medical Center, Seoul, Korea
| | - WH Kil
- Samsung Medical Center, Seoul, Korea
| | - J Kim
- Samsung Medical Center, Seoul, Korea
| | - JE Lee
- Samsung Medical Center, Seoul, Korea
| | - SW Kim
- Samsung Medical Center, Seoul, Korea
| | - SJ Nam
- Samsung Medical Center, Seoul, Korea
| | - SM Kim
- Samsung Medical Center, Seoul, Korea
| | - SY Bae
- Samsung Medical Center, Seoul, Korea
| | - SK Lee
- Samsung Medical Center, Seoul, Korea
| | - J Kim
- Samsung Medical Center, Seoul, Korea
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Kim EM, Lee HY, Lee EH, Lee KM, Park M, Ji KY, Jang JH, Jeong YH, Lee KH, Yoon IJ, Kim SM, Jeong MJ, Kim KD, Kang HS. Formaldehyde exposure impairs the function and differentiation of NK cells. Toxicol Lett 2013; 223:154-61. [DOI: 10.1016/j.toxlet.2013.09.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2012] [Revised: 09/10/2013] [Accepted: 09/12/2013] [Indexed: 02/02/2023]
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Kim SM, Choi JH, Chang SA, Choe YH. Detection of ischaemic myocardial lesions with coronary CT angiography and adenosine-stress dynamic perfusion imaging using a 128-slice dual-source CT: diagnostic performance in comparison with cardiac MRI. Br J Radiol 2013; 86:20130481. [PMID: 24096592 DOI: 10.1259/bjr.20130481] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
OBJECTIVE We assessed the diagnostic performance of adenosine-stress dynamic CT perfusion (ASDCTP) imaging and coronary CT angiography (CCTA) for the detection of ischaemic myocardial lesions using 128-slice dual-source CT compared with that of 1.5 T cardiac MRI. METHODS This prospective study included 33 patients (61±8 years, 82% male) with suspected coronary artery diseases who underwent ASDCTP imaging and adenosine-stress cardiac MRI. Two investigators independently evaluated ASDCTP images in correlation with significant coronary stenosis on CCTA using two different thresholds of 50% and 70% diameter stenosis. Hypoattenuated myocardial lesions on ASDCTP associated with significant coronary stenoses on CCTA were regarded as true perfusion defects. All estimates of diagnostic performance were calculated and compared with those of cardiac MRI. RESULTS With use of a threshold of 50% diameter stenosis on CCTA, the diagnostic estimates per-myocardial segment were as follows: sensitivity, 81% [95% confidence interval (CI): 70-92%]; specificity, 94% (95% CI: 92-96%); and accuracy 93% (95% CI: 91-95%). With use of a threshold of 70%, the diagnostic estimates were as follows: sensitivity, 48% (95% CI: 34-62%); specificity, 99% (95% CI: 98-100%); and accuracy, 94% (95% CI: 92-96%). CONCLUSION Dynamic CTP using 128-slice dual-source CT enables the assessment of the physiological significance of coronary artery lesions with high diagnostic accuracy in patients with clinically suspected coronary artery disease. ADVANCES IN KNOWLEDGE Combined CCTA and ASDCTP yielded high accuracy in the detection of perfusion defects regardless of the threshold of significant coronary stenosis.
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Affiliation(s)
- S M Kim
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
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Min SI, Ha J, Kang HG, Ahn S, Park T, Park DD, Kim SM, Hong HJ, Min SK, Ha IS, Kim SJ. Conversion of twice-daily tacrolimus to once-daily tacrolimus formulation in stable pediatric kidney transplant recipients: pharmacokinetics and efficacy. Am J Transplant 2013; 13:2191-7. [PMID: 23734831 DOI: 10.1111/ajt.12274] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Revised: 03/29/2013] [Accepted: 03/31/2013] [Indexed: 01/25/2023]
Abstract
The pharmacokinetics, efficacy and safety of once-daily tacrolimus formulation (Tac-OD) were assessed in 34 stable pediatric kidney transplant recipients. Enrolled patients received their dose of twice-daily tacrolimus formulation (Tac-BID) on study Days 0 through 7. On the morning of study Day 8, the total daily doses for patients were converted to Tac-OD on a 1:1 basis and maintained on a once-daily morning dosing regimen. Tacrolimus pharmacokinetic profiles were obtained on study Days 7, 14 and 28 (after dose adjustment). Although the mean C0 concentrations (4.10 ± 1.16-3.53 ± 1.10 ng/mL, p = 0.004), and AUC0-24 (151.8 ± 41.6-129.8 ± 39.3 ng h/mL, p < 0.001) were decreased significantly after a 1:1 based conversion, there was high interindividual variability. The dose of Tac-OD was decreased in 26.5% and increased in 44.1% of patients. The resultant tacrolimus dose and pharmacokinetic profiles on study Day 28 were comparable to those on Day 7. There were no serious adverse events. In conclusion, Tac-BID can be safely converted to Tac-OD in stable pediatric kidney transplant patients with the heightened therapeutic drug monitoring. Effects of drug conversion on the cardiovascular risk factors, neurological side effects and adherence should be further evaluated.
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Affiliation(s)
- S I Min
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
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