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Lee JH, Ku EK, Min SK, Shin DH, Chung YS, Kim YJ, Kim KG. Intraoperative detection of parathyroid glands using Artificial intelligence: Object detection model in conjunction with data augmentation. European Journal of Surgical Oncology 2023. [DOI: 10.1016/j.ejso.2022.11.127] [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: 02/23/2023]
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Lee B, Kim BG, Baraki TG, Kim JS, Lee YJ, Lee SJ, Hong SJ, Ahn CM, Shin DH, Kim BK, Ko YG, Choi DH, Honh MK, Jang YS. Stent expansion evaluated by optical coherence tomography and subsequent outcomes. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1203] [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: 11/12/2022] Open
Abstract
Abstract
Background
Regarding stent expansion indexes, previous optical coherence tomography (OCT) studies have shown minimal stent area (MSA) to be most predictive of adverse events.
Purpose
We sought to evaluate the impact of various stent expansion indexes by post-stent OCT on long-term clinical outcomes, and hence to find OCT-defined optimal stent expansion criteria.
Methods
Of the patients registered in the Yonsei OCT registry, a total of 1071 patients with 1123 native coronary artery lesions treated with new-generation drug-eluting stents under the OCT guidance and analyzable final post-stent OCT were included. Stent expansion indexes and different suboptimal stent expansion criteria were evaluated for their association with device-oriented clinical endpoints (DoCE) including cardiac death, target vessel-related myocardial infarction (TVMI) or stent thrombosis, and target lesion revascularization. Major safety events (MSE) included cardiac death, TVMI or stent thrombosis.
Results
The median follow-up period was 40.6 (interquartile range 22.0–50.0) months. As a continuous variable, MSA, adaptive volumetric stent expansion (stent volume/adaptive reference lumen volume) and overall volumetric stent expansion (stent volume/post-stent lumen volume) were significantly predictive of DoCE. As a categorical criteria, MSA <5.0 mm2 (hazard ratio [HR] 3.80; 95% confidence interval [CI] 1.53–9.45), MSA/distal reference lumen area <90% (HR 2.13; 95% CI 1.10–4.14), and overall volumetric stent expansion ≥96.6% (HR 2.38; 95% CI 1.09–5.22) were independently associated with DoCE after adjusting for confounders, and a total malapposition volume ≥7.0 mm3 (HR 3.38; 95% CI 1.05–10.93) was linked to MSE.
Conclusions
This OCT study highlights that sufficient stent expansion to achieve adequate absolute MSA and relative MSA by distal reference lumen area and alleviate significant malapposition is important to improve clinical outcome, but overall stent overexpansion may have deleterious effect.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- B Lee
- Severance Hospital, Cardiology , Seoul , Korea (Republic of)
| | - B G Kim
- Sanggye Paik Hospital , Seoul , Korea (Republic of)
| | - T G Baraki
- Severance Hospital, Cardiology , Seoul , Korea (Republic of)
| | - J S Kim
- Severance Hospital, Cardiology , Seoul , Korea (Republic of)
| | - Y J Lee
- Severance Hospital, Cardiology , Seoul , Korea (Republic of)
| | - S J Lee
- Severance Hospital, Cardiology , Seoul , Korea (Republic of)
| | - S J Hong
- Severance Hospital, Cardiology , Seoul , Korea (Republic of)
| | - C M Ahn
- Severance Hospital, Cardiology , Seoul , Korea (Republic of)
| | - D H Shin
- Severance Hospital, Cardiology , Seoul , Korea (Republic of)
| | - B K Kim
- Severance Hospital, Cardiology , Seoul , Korea (Republic of)
| | - Y G Ko
- Severance Hospital, Cardiology , Seoul , Korea (Republic of)
| | - D H Choi
- Severance Hospital, Cardiology , Seoul , Korea (Republic of)
| | - M K Honh
- Severance Hospital, Cardiology , Seoul , Korea (Republic of)
| | - Y S Jang
- Cha Bundang Medical Center, cardiology , Seongnam , Korea (Republic of)
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Jeong SJ, Lee SE, Shin DH, Park IB, Lee HS, Kim KA. Barriers to initiating SGLT2 inhibitors in diabetic kidney disease: a real-world study. BMC Nephrol 2021; 22:177. [PMID: 33990175 PMCID: PMC8122538 DOI: 10.1186/s12882-021-02381-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 04/26/2021] [Indexed: 12/17/2022] Open
Abstract
Background Sodium-glucose cotransporter 2 inhibitor (SGLT2i) should be considered for patients with type 2 diabetes (T2D) and chronic kidney disease (CKD) having estimated glomerular filtration rate (eGFR) ≥ 30 mL/min/1.73 m2 and urine albumin-to-creatinine ratio (UACR) > 30 mg/g. However, SGLT2i is currently underprescribed among eligible, at-risk patients for CKD progression. We analyzed prescription patterns and barriers to initiating SGLT2i in patients with T2D and CKD in real practice. Methods A total of 3,703 consecutive outpatients with T2D from four teaching hospitals during six months (2019 ~ 2020) were reviewed. Five eGFR categories (G1, ≥ 90; G2, 60–89; G3ab, 30–59; G4-5, < 30 mL/min/1.73 m2) and three UACR categories (A1, < 30; A2, 30–300; A3, > 300 mg/g) were used to define CKD status. Results Overall, 25.8 % patients received SGLT2i in the following eGFR and albuminuria categories: G1 (A1, 31 %; A2, 48 %; A3, 45 %); G2 (A1, 18 %; A2, 24 %; A3, 30%); and G3 (A1, 9 %; A2, 7 %; A3, 13 %). Total prevalence estimate of CKD was 33.8 % (n = 1,253), of whom 25.6 % patients received SGLT2i. We defined eGFR ≥ 45 mL/min/1.73 m2 and UACR ≥ 30 mg/g as high-risk CKD group eligible for SGLT2i (n = 905), of whom 32.9 % patients were treated with an SGLT2i. In this high-risk group, SGLT2i initiation showed negative correlations with age ≥ 65 years and recent hospitalization. Conversely, HbA1c level, body mass index (BMI), presence of diabetic retinopathy, and previous heart failure events were positively correlated with SGLT2i initiation. Conclusions Only 32.9 % of T2D with CKD eligible for SGLT2i is currently treated with SGLT2i in real-world clinical practice. The older patient group and clinical inertia are the main barriers to initiate SGLT2i for eligible patients. Clinicians should change the glucocentric approach and focus on reducing renal events in T2D. Supplementary Information The online version contains supplementary material available at 10.1186/s12882-021-02381-3.
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Affiliation(s)
- Su Jin Jeong
- Department of Internal Medicine, Sejong Hospital, Bucheon, Korea
| | - Seung Eun Lee
- Department of Internal Medicine, Dongguk University Ilsan Hospital, Goyang, Korea
| | - Dong Hyun Shin
- Department of Internal Medicine, Bundang Jesaeng Hospital, Seongnam, Korea
| | - Ie Byung Park
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Korea
| | - Hui Seung Lee
- Department of Biostatistics, School of Medicine, Dongguk University, Goyang, Korea
| | - Kyoung-Ah Kim
- Department of Internal Medicine, Dongguk University Ilsan Hospital, Goyang, Korea.
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Shin DH, Rho SY, Hwang HK, Lee WJ, Kang CM. A case of pancreatic hamartoma pathologically confirmed after robot-assisted pancreaticoduodenectomy. Ann Hepatobiliary Pancreat Surg 2019; 23:286-290. [PMID: 31501820 PMCID: PMC6728250 DOI: 10.14701/ahbps.2019.23.3.286] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 04/25/2019] [Accepted: 04/30/2019] [Indexed: 12/27/2022] Open
Abstract
Pancreatic hamartoma is a rare benign tumor that can be easily misdiagnosed due to its rarity. Its diagnostic ambiguity demands surgical resection for confirmation. We reported a 54-year-old female patient with a pancreatic hamartoma that was pathologically confirmed after surgery, and we reviewed all the reported literature for adult pancreatic hamartomas. With the advancement of techniques for minimally invasive surgery, laparoscopic or robotic pancreatectomy can be safely performed on benign or low-grade malignant tumors in which the diagnosis is uncertain.
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Affiliation(s)
| | - Seoung Yoon Rho
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Yonsei University College of Medicine, Seoul, Korea.,Pancreatobiliary Cancer Center, Yonsei Cancer Center, Severance Hospital, Seoul, Korea
| | - Ho Kyoung Hwang
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Yonsei University College of Medicine, Seoul, Korea.,Pancreatobiliary Cancer Center, Yonsei Cancer Center, Severance Hospital, Seoul, Korea
| | - Woo Jung Lee
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Yonsei University College of Medicine, Seoul, Korea.,Pancreatobiliary Cancer Center, Yonsei Cancer Center, Severance Hospital, Seoul, Korea
| | - Chang Moo Kang
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Yonsei University College of Medicine, Seoul, Korea.,Pancreatobiliary Cancer Center, Yonsei Cancer Center, Severance Hospital, Seoul, Korea
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Kim HJ, An SY, Han SJ, Kim DJ, Hong CH, Kim YH, Shin DH, Kim NH, Seo JA, Ahn YB, Ko SH, Cho YW, Park SW, Kim SK, Kim KW, Kim CS, Lee KW. The association of diabetes duration and glycemic control with depression in elderly men with type 2 diabetes mellitus. J Res Med Sci 2019; 24:17. [PMID: 30988685 PMCID: PMC6421887 DOI: 10.4103/jrms.jrms_43_18] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 06/02/2018] [Accepted: 12/13/2018] [Indexed: 12/28/2022]
Abstract
Background: The prevalence of depression and type 2 diabetes mellitus (T2DM) are increasing in the elderly and are reportedly related to each other. We evaluated the relationship between T2DM-related factors and the degree of depression in elderly patients with T2DM based on gender. Materials and Methods: A total of 155 patients with T2DM (56 males and 99 females aged ≥ 65 years) from seven hospitals were included in the study. To assess the status of depressive symptoms, the short form of the Geriatric Depression Scale-Korean version (SGDS-K) was used. We evaluated DM-related factors, such as T2DM duration, hemoglobin A1c (HbA1c) levels, and T2DM complications, as well as other possible factors that could affect depression, such as cognitive function, physical function, education level, and other personal factors. Results: Mean age of the participants was 71.3 years with a mean HbA1c level of 7.6%. Males in the good glycemic control group (HbA1c <7%) showed lower SGDS-K scores compared to those in the poor glycemic control group, and the mean SGDS-K score was higher in the group with a longer duration of DM (M10 years); however, no difference was observed in females. Males and females with microvascular and macrovascular complications tended to have higher SGDS-K scores than participants with no microvascular or macrovascular complications. A multiple linear regression analysis revealed that DM duration and HbA1c level were independently associated with SGDS-K scores in males. Conclusion: Greater depression was associated with poorer glycemic control and a longer duration of DM in elderly males with T2DM.
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Affiliation(s)
- Hae Jin Kim
- Department of Endocrinology and Metabolism, Ajou University School of Medicine, Suwon, Republic of Korea
| | - So-Yeon An
- Department of Internal Medicine, Hongik Hospital, Seoul, Republic of Korea
| | - Seung Jin Han
- Department of Endocrinology and Metabolism, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Dae Jung Kim
- Department of Endocrinology and Metabolism, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Chang Hyung Hong
- Department of Psychiatry, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Yong Hyun Kim
- Department of Internal Medicine, Bundang Jesaeng Hospital, Seongnam, Republic of Korea
| | - Dong Hyun Shin
- Department of Internal Medicine, Bundang Jesaeng Hospital, Seongnam, Republic of Korea
| | - Nan Hee Kim
- Department of Internal Medicine, Korea University College of Medicine, Ansan, Republic of Korea
| | - Ji A Seo
- Department of Internal Medicine, Korea University College of Medicine, Ansan, Republic of Korea
| | - Yu-Bae Ahn
- Department of Internal Medicine, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Suwon, Republic of Korea
| | - Seung-Hyun Ko
- Department of Internal Medicine, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Suwon, Republic of Korea
| | - Yong Wook Cho
- Department of Internal Medicine, CHA Bundang Medical Center, CHA University, Seongnam, Republic of Korea
| | - Seok Won Park
- Department of Internal Medicine, CHA Bundang Medical Center, CHA University, Seongnam, Republic of Korea
| | - Soo Kyung Kim
- Department of Internal Medicine, CHA Bundang Medical Center, CHA University, Seongnam, Republic of Korea
| | - Kyung Wook Kim
- Department of Internal Medicine, Dongtan jeil Women's Hospital, Hwaseong, Republic of Korea
| | - Chul Sik Kim
- Department of Internal Medicine, Hallym University College of Medicine, Anyang, Republic of Korea
| | - Kwan-Woo Lee
- Department of Endocrinology and Metabolism, Ajou University School of Medicine, Suwon, Republic of Korea
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Lee KH, Lee H, Lee CH, Kim JY, Kim JM, Kim SS, Jeong S, Hwang IS, Kim N, Kim NE, Shin S, Shin D, Song JS, Shin DH, Kim JD, Kim J, Lee YS, Kang H, Kim DH, Moon SH, Rho WS, Lee JY, Kronbichler A, Shin JI. Adrenal insufficiency in systematic lupus erythematosus (SLE) and antiphospholipid syndrome (APS): A systematic review. Autoimmun Rev 2018; 18:1-8. [PMID: 30408580 DOI: 10.1016/j.autrev.2018.06.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [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: 06/12/2018] [Accepted: 06/18/2018] [Indexed: 01/09/2023]
Abstract
BACKGROUND Adrenal insufficiency (AI) is associated with high morbidity and mortality. The aim of this systematic review was to enhance diagnostic approaches and summarize therapeutic strategies in the management of AI in patients with systematic lupus erythematosus (SLE) or antiphospholipid syndrome (APS). METHODS A literature search of PubMed and Medline databases was performed and 91 publications containing 105 cases were included for the final analysis. RESULTS The following frequency of clinical signs and symptoms was noted: abdominal pain (39.04%) was the leading symptom, followed by fever (33.33%), vomiting (23.81%), and nausea (19.05%). APS was present in 73%, SLE in 17% of the patients, while 2% had a diagnosis of both, SLE and APS. ACTH stimulation test (ACTHst) was performed in 18% of cases and 76.6% of them were unresponsive towards stimulation. Variable treatment approaches were used: hydrocortisone was most commonly used (38.09%), followed by fludrocortisone (26.67%), prednisolone (20.00%) and volume replacement treatment (11.43%), respectively. CONCLUSIONS This analysis highlights the importance of an early diagnosis and initiation of therapeutic management when AI is suspected. In line, signs and symptoms related to autoimmune diseases in patients with AI should be reviewed crtitically.
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Affiliation(s)
- Keum Hwa Lee
- Department of Pediatrics, Yonsei University College of Medicine, Seoul, Republic of Korea; Division of Pediatric Nephrology, Severance Children's Hospital, Seoul, Republic of Korea
| | - HyunJeong Lee
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Cheol-Hun Lee
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jin Yeong Kim
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jong Min Kim
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Se Seung Kim
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Seungmin Jeong
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - In Sung Hwang
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Namsoo Kim
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Na Eun Kim
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Soogeun Shin
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Dongkwan Shin
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Joo Sang Song
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Dong Hyun Shin
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jung Dong Kim
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jeehoon Kim
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yong Seok Lee
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Hansung Kang
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Dong Ha Kim
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - So Hyun Moon
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Won Suk Rho
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Joo Yeon Lee
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Andreas Kronbichler
- Department of Internal Medicine IV (Nephrology and Hypertension), Medical University Innsbruck, Innsbruck, Austria
| | - Jae Il Shin
- Department of Pediatrics, Yonsei University College of Medicine, Seoul, Republic of Korea; Division of Pediatric Nephrology, Severance Children's Hospital, Seoul, Republic of Korea; Institute of Kidney Disease Research, Yonsei University College of Medicine, Seoul, Republic of Korea.
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Kim HS, Yeo HJ, Shin DH, Cho WH, Kim D. Isolated Acute Appendicitis Caused by Aspergillus in a Patient Who Underwent Lung Transplantation: A Case Report. Transplant Proc 2018; 50:1199-1201. [PMID: 29655492 DOI: 10.1016/j.transproceed.2018.01.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 12/21/2017] [Accepted: 01/22/2018] [Indexed: 12/19/2022]
Abstract
Invasive aspergillosis is an important cause of morbidity and mortality in patients who have undergone lung transplantation. Aspergillus infections usually involve the respiratory tract, with vascular invasion and subsequent dissemination. However, acute appendicitis associated with localized aspergillosis is rare, especially among patients who have undergone prophylaxis with voriconazole. We present a case of primary Aspergillus appendicitis diagnosed by histologic examination in a patient who underwent lung transplantation. A 51-year-old woman with dermatomyositis underwent lung transplantation for acute interstitial pneumonitis. According to our institution's protocol, the patient was treated with immunosuppressive therapy and prophylaxis with voriconazole, ganciclovir, and trimethoprim sulfamethoxazole during the post-transplantation period. Twenty-eight days after transplantation, the patient developed mild abdominal pain and paralytic ileus. There was no apparent infection sign. Abdominal computerized tomography indicated a wall defect of the appendix with multifocal fluid collection, mesenteric leave thickening, and pneumoperitoneum. These findings were consistent with perforated appendicitis, and the patient underwent an appendectomy. The histopathology examination of the resected appendix showed inflammation and abscess. Periodic acid-Schiff-positive and Grocott-Gomori methenamine silver-positive fungal hyphae with acute-angle branching were observed, demonstrating muscular invasion. A galactomannan antigen test obtained on the same day had negative results. The trough level of voriconazole was well maintained and was subsequently adjusted through monitoring of circulating drug concentration. Simultaneously, other potential sites of disseminated Aspergillus were considered and examined, but no other site of systemic Aspergillus infection was detected. Voriconazole treatment was maintained for 3 months, and no aspergillosis relapse or other invasive fungal infections were observed.
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Affiliation(s)
- H S Kim
- Department of Pulmonology and Critical Care Medicine, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - H J Yeo
- Department of Pulmonology and Critical Care Medicine, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea; Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea.
| | - D H Shin
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea; Department of Pathology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - W H Cho
- Department of Pulmonology and Critical Care Medicine, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea; Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - D Kim
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea; Department of Thoracic and Cardiovascular Surgery, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
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Yhi JY, Park DW, Min JH, Park YK, Kim SH, Kim TH, Sohn JW, Yoon HJ, Shin DH, Moon JY. Measurement of levels of fractional exhaled nitric oxide in patients with pulmonary tuberculosis. Int J Tuberc Lung Dis 2018; 20:1174-80. [PMID: 27510242 DOI: 10.5588/ijtld.15.1019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
SETTING The role of fractional exhaled nitric oxide (FeNO) in the diagnosis and treatment of pulmonary tuberculosis (PTB) is uncertain. OBJECTIVE To examine the value of FeNO as a biomarker for PTB. DESIGN Baseline FeNO levels were compared in 69 PTB patients and 118 healthy controls. The correlation between baseline FeNO levels and clinical variables of tuberculosis were studied. FeNO levels were checked twice in the PTB group, at diagnosis and after 2 months of anti-tuberculosis medication, and factors affecting changes in FeNO levels after treatment were analysed. RESULTS FeNO levels were not significantly different in the PTB group and controls (mean ± standard deviation 27.7 ± 17.6 parts per billion [ppb] vs. 27.0 ± 10.8 ppb, P = 0.531). In a multivariate regression analysis, no variable was shown to affect FeNO levels at diagnosis. FeNO levels did not significantly change after 2 months of treatment (26.8 ± 18.3 ppb vs. 24.0 ± 10.7 ppb, P = 0.257). Only PTB with a high FeNO level (>25 ppb) was related to a decline in FeNO levels after 2 months of treatment. CONCLUSION FeNO levels do not appear to be affected in PTB patients.
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Affiliation(s)
- J Y Yhi
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - D W Park
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - J-H Min
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Y K Park
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - S-H Kim
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - T-H Kim
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - J W Sohn
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - H J Yoon
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - D H Shin
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - J-Y Moon
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
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Hong DY, Park SO, Lee KR, Baek KJ, Moon HW, Han SB, Shin DH. Bacterial Contamination of Computer and Hand Hygiene Compliance in the Emergency Department. HONG KONG J EMERG ME 2017. [DOI: 10.1177/102490791201900603] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Introduction The aim of this study was to determine the degree and nature of bacterial contamination of computer equipment in three Korean emergency departments (ED). Methods Hand hygiene practices of ED doctors and nurses were observed before contact with computer equipment. Microbiological swab samples were obtained from 112 multiple-user computer keyboards and electronic mice in the ED of three teaching hospitals. Isolated organisms were identified by a clinical microbiologist using Gram stain, colony morphology, and susceptibility test. Results Of the 112 samples, 103 (92.0%) showed growth of organisms on culture. Thirty-eight (33.9%) pieces of computer equipment yielded multiple bacterial species. Coagulase-negative Staphylococcus was the most common microorganism isolated (85.7%). Methicillin-resistant Staphylococcus aureus was obtained from two keyboards in two hospitals (1.8%). Hand hygiene compliance was observed on 29.9% occasions. Hand hygiene compliance after patient contact (38.0%) was higher than after other environmental contact (20.7%). Conclusions Multiple user computer equipment in the ED may serve as reservoirs for nosocomial infection. Hand hygiene should be performed before and after using all ED equipment, including computer equipment.
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Affiliation(s)
| | | | | | | | - HW Moon
- Konkuk University Medical Center, Department of Laboratory Medicine, Konkuk University School of Medicine, 120-1 Neugdong-ro, Hwayang-dong, Gwangjin-gu, Seoul, Republic of Korea, 143-729; Moon Hee Won, MD
| | - SB Han
- Inha University Hospital, Department of Emergency Medicine, 7-206 Sinheung-dong 3-ga, Jung-gu, Incheon, Republic of Korea, 400-711
| | - DH Shin
- Kangbuk Samsung Hospital, Department of Emergency Medicine, Sungkyunkwan University School of Medicine, 108-1 Pyeong-dong, Jongno-gu, Seoul, Republic of Korea, 110-746
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Hong DY, Park SO, Lee KR, Baek KJ, Moon HW, Han SB, Shin DH. Bacterial Contamination of Computer and Hand Hygiene Compliance in the Emergency Department. HONG KONG J EMERG ME 2017. [DOI: 10.1177/102490791302000610] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Introduction The aim of this study was to determine the degree and nature of bacterial contamination of computer equipment in three Korean emergency departments (ED). Methods Hand hygiene practices of ED doctors and nurses were observed before contact with computer equipment. Microbiological swab samples were obtained from 112 multiple-user computer keyboards and electronic mice in the ED of three teaching hospitals. Isolated organisms were identified by a clinical microbiologist using Gram stain, colony morphology, and susceptibility test. Results Of the 112 samples, 103 (92.0%) showed growth of organisms on culture. Thirty-eight (33.9%) pieces of computer equipment yielded multiple bacterial species. Coagulase-negative Staphylococcus was the most common microorganism isolated (85.7%). Methicillin-resistant Staphylococcus aureus was obtained from two keyboards in two hospitals (1.8%). Hand hygiene compliance was observed on 29.9% occasions. Hand hygiene compliance after patient contact (38.0%) was higher than after other environmental contact (20.7%). Conclusions Multiple user computer equipment in the ED may serve as reservoirs for nosocomial infection. Hand hygiene should be performed before and after using all ED equipment, including computer equipment. (Hong Kong j.emerg.med. 2012;19:387-393)
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Affiliation(s)
| | | | | | | | - HW Moon
- Konkuk University Medical Center, Department of Laboratory Medicine, Konkuk University School of Medicine, 120-1 Neugdong-ro, Hwayang-dong, Gwangjin-gu, Seoul, Republic of Korea, 143-729
| | - SB Han
- Inha University Hospital, Department of Emergency Medicine, 7-206 Sinheung-dong 3-ga, Jung-gu, Incheon, Republic of Korea, 400-711
| | - DH Shin
- Kangbuk Samsung Hospital, Department of Emergency Medicine, Sungkyunkwan University School of Medicine, 108-1 Pyeong-dong, Jongno-gu, Seoul, Republic of Korea, 110-746
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Oh JM, Woo HW, Kim MK, Lee YH, Shin DH, Shin MH, Choi BY. Dietary total, animal, vegetable calcium and type 2 diabetes incidence among Korean adults: The Korean Multi-Rural Communities Cohort (MRCohort). Nutr Metab Cardiovasc Dis 2017; 27:1152-1164. [PMID: 29167059 DOI: 10.1016/j.numecd.2017.10.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [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: 04/27/2017] [Revised: 08/26/2017] [Accepted: 10/05/2017] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND AIMS Although a possible mechanism for developing type 2 diabetes in relation to calcium intake has been suggested, there is currently little epidemiological evidence on the association between dietary calcium and type 2 diabetes (T2D). This study aimed to evaluate the prospective association between dietary calcium and T2D incidence among adults 40 years of age or over, from the Multi-rural Communities Cohort (MRCohort), South Korea. METHODS AND RESULTS In total, 8313 participants (3033 men and 5280 women) who did not have diabetes at baseline were recruited between 2005 and 2013. The incidence rate ratio (IRR) was estimated using a modified Poisson regression model with a robust error estimator. During follow-up (31,570 person-years), 322 T2D cases were newly diagnosed. Dietary calcium (total and vegetable calcium) were inversely associated with the risk of T2D incidence among women (IRR = 0.61, 95% CI = 0.43-0.86, P for trend = 0.007 in third tertile of baseline total calcium intake comparing to the first tertile; IRR = 0.57, 95% CI = 0.39-0.84, P for trend = 0.006 for baseline vegetable calcium intake), not for men. The tendency of those inverse associations remained in both the normal fasting blood glucose group and the impaired fasting blood glucose group and were independent of obesity, smoking, and magnesium intake. CONCLUSIONS Total and vegetable calcium may be inversely associated with T2D incidence among women, regardless of impaired fasting blood glucose group or normal group. The associations may be potentially dose-responsive. Moderate dietary calcium may be related to lower risk of T2D incidence comparing to low intake group among women.
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Affiliation(s)
- J M Oh
- Department of Preventive Medicine, College of Medicine, Hanyang University, Seoul, South Korea; Institute for Health and Society, Hanyang University, Seoul, South Korea
| | - H W Woo
- Department of Preventive Medicine, College of Medicine, Hanyang University, Seoul, South Korea; Institute for Health and Society, Hanyang University, Seoul, South Korea
| | - M K Kim
- Department of Preventive Medicine, College of Medicine, Hanyang University, Seoul, South Korea; Institute for Health and Society, Hanyang University, Seoul, South Korea.
| | - Y-H Lee
- Department of Preventive Medicine, Institute of Wonkwang Medical Science, Wonkwang University College of Medicine, Iksan, South Korea
| | - D H Shin
- Department of Occupational and Environmental Medicine, Keimyung University Dongsan Medical Center, Daegu, South Korea
| | - M-H Shin
- Department of Preventive Medicine, Chonnam National University Medical School, Gwangju, South Korea
| | - B Y Choi
- Department of Preventive Medicine, College of Medicine, Hanyang University, Seoul, South Korea; Institute for Health and Society, Hanyang University, Seoul, South Korea
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Shin DH, Kim EY. Regarding "Perfusion MR Imaging Using a 3D Pulsed Continuous Arterial Spin-Labeling Method for Acute Cerebral Infarction Classified as Branch Atheromatous Disease Involving the Lenticulostriate Artery Territory". AJNR Am J Neuroradiol 2017; 38:E103. [PMID: 28818823 DOI: 10.3174/ajnr.a5356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | - E Y Kim
- Department of Radiology Gachon University Gil Medical Center Incheon, South Korea
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Kim HJ, Han SJ, Kim DJ, Jang HC, Lim S, Choi SH, Kim YH, Shin DH, Kim SH, Kim TH, Ahn YB, Ko SH, Kim NH, Seo JA, Kim HY, Lee KW. Effects of valsartan and amlodipine on oxidative stress in type 2 diabetic patients with hypertension: a randomized, multicenter study. Korean J Intern Med 2017; 32:497-504. [PMID: 28490725 PMCID: PMC5432799 DOI: 10.3904/kjim.2015.404] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 05/27/2016] [Accepted: 05/29/2016] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND/AIMS Oxidative stress plays an important role in the pathogenesis and progression of diabetic complications and antagonists of renin-angiotensin system and amlodipine have been reported previously to reduce oxidative stress. In this study, we compared the changes in oxidative stress markers after valsartan and amlodipine treatment in type 2 diabetic patients with hypertension and compared the changes in metabolic parameters. METHODS Type 2 diabetic subjects with hypertension 30 to 80 years of age who were not taking antihypertensive drugs were randomized into either valsartan (n = 33) or amlodipine (n = 35) groups and treated for 24 weeks. We measured serum nitrotyrosine levels as an oxidative stress marker. Metabolic parameters including serum glucose, insulin, lipid profile, and urine albumin and creatinine were also measured. RESULTS After 24 weeks of valsartan or amlodipine treatment, systolic and diastolic blood pressure decreased, with no significant difference between the groups. Both groups showed a decrease in serum nitrotyrosine (7.74 ± 7.30 nmol/L vs. 3.95 ± 4.07 nmol/L in the valsartan group and 8.37 ± 8.75 nmol/L vs. 2.68 ± 2.23 nmol/L in the amlodipine group) with no significant difference between the groups. Other parameters including glucose, lipid profile, albumin-to-creatinine ratio, and homeostasis model assessment of insulin resistance showed no significant differences before and after treatment in either group. CONCLUSIONS Valsartan and amlodipine reduced the oxidative stress marker in type 2 diabetic patients with hypertension.
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Affiliation(s)
- Hae Jin Kim
- Department of Endocrinology and Metabolism, Ajou University School of Medicine, Suwon, Korea
| | - Seung Jin Han
- Department of Endocrinology and Metabolism, Ajou University School of Medicine, Suwon, Korea
| | - Dae Jung Kim
- Department of Endocrinology and Metabolism, Ajou University School of Medicine, Suwon, Korea
| | - Hak Chul Jang
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Soo Lim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Sung Hee Choi
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Yong Hyun Kim
- Department of Internal Medicine, Daejin Medical Center, Bundang Jesaeng Hospital, Seongnam, Korea
| | - Dong Hyun Shin
- Department of Internal Medicine, Daejin Medical Center, Bundang Jesaeng Hospital, Seongnam, Korea
| | - Se Hwa Kim
- Department of Internal Medicine, International St. Mary’s Hospital, Catholic Kwandong University College of Medicine, Incheon, Korea
| | - Tae Ho Kim
- Department of Internal Medicine, Seoul Medical Center, Seoul, Korea
| | - Yu Bae Ahn
- Department of Internal Medicine, College of Medicine, St. Vincent’s Hospital, The Catholic University of Korea, Suwon, Korea
| | - Seung Hyun Ko
- Department of Internal Medicine, College of Medicine, St. Vincent’s Hospital, The Catholic University of Korea, Suwon, Korea
| | - Nan Hee Kim
- Department of Internal Medicine, Korea University Ansan Hospital, Ansan, Korea
| | - Ji A Seo
- Department of Internal Medicine, Korea University Ansan Hospital, Ansan, Korea
| | - Ha Young Kim
- Department of Internal Medicine, Wonkwang University Sanbon Hospital, Gunpo, Korea
| | - Kwan Woo Lee
- Department of Endocrinology and Metabolism, Ajou University School of Medicine, Suwon, Korea
- Correspondence to Kwan Woo Lee, M.D. Department of Endocrinology and Metabolism, Ajou University School of Medicine, 164 World cup-ro, Yeongtong-gu, Suwon 16499, Korea Tel: +82-31-219-4526 Fax: +82-31-219-4497 E-mail:
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14
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Shin DH, Kim YS, Yoo DS, Kim MJ, Oh CS, Hong JH, Lee E, Chai JY, Seo M. A Case of Ectopic Paragonimiasis in a 17th Century Korean Mummy. J Parasitol 2017; 103:399-403. [PMID: 28395568 DOI: 10.1645/16-63] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Archaeoparasitological studies on fossilized feces obtained from Joseon Dynasty (1392-1910 CE) mummies have provided invaluable data on the patterns of parasitic infection in pre-modern Korean societies. In our recent radiological investigation of a 17th century Joseon mummy discovered in Cheongdo (South Korea), we located a liver mass just below the diaphragm. Anatomical dissection confirmed the presence of a mass of unknown etiology. A subsequent parasitological examination of a sample of the mass revealed a large number of ancient Paragonimus sp. eggs, making the current report the first archaeoparasitological case of liver abscess caused by ectopic paragonimiasis.
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Affiliation(s)
- D H Shin
- Bioanthropology and Paleopathology Lab, Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul 03080, South Korea. Correspondence should be sent to M. Seo at:
| | - Y-S Kim
- Bioanthropology and Paleopathology Lab, Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul 03080, South Korea. Correspondence should be sent to M. Seo at:
| | - D S Yoo
- Bioanthropology and Paleopathology Lab, Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul 03080, South Korea. Correspondence should be sent to M. Seo at:
| | - M J Kim
- Bioanthropology and Paleopathology Lab, Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul 03080, South Korea. Correspondence should be sent to M. Seo at:
| | - C S Oh
- Bioanthropology and Paleopathology Lab, Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul 03080, South Korea. Correspondence should be sent to M. Seo at:
| | - J H Hong
- Bioanthropology and Paleopathology Lab, Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul 03080, South Korea. Correspondence should be sent to M. Seo at:
| | - E Lee
- Bioanthropology and Paleopathology Lab, Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul 03080, South Korea. Correspondence should be sent to M. Seo at:
| | - J Y Chai
- Bioanthropology and Paleopathology Lab, Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul 03080, South Korea. Correspondence should be sent to M. Seo at:
| | - M Seo
- Bioanthropology and Paleopathology Lab, Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul 03080, South Korea. Correspondence should be sent to M. Seo at:
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Park DW, Kim SH, Moon JY, Song JS, Choi J, Kwak HJ, Jeong MG, Ro YS, Kim TH, Sohn JW, Shin DH, Park SS, Yoon HJ. The effect of low-volatile organic compounds, water-based paint on aggravation of allergic disease in schoolchildren. Indoor Air 2017; 27:320-328. [PMID: 27007057 DOI: 10.1111/ina.12301] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Accepted: 03/19/2016] [Indexed: 06/05/2023]
Abstract
Whether indoor painting aggravates preexisting allergic diseases remains unclear. We aimed to evaluate the impact of new classroom painting on aggravation of asthma, allergic rhinitis (AR), and atopic dermatitis (AD) in children. Studied school was previously painted with conventional water-based paint 20 years ago and had natural ventilation system. We identified a total of 172 children aged 10-12 years with allergic diseases in 17 classrooms, which were allocated to newly painted rooms with low-volatile organic compounds (VOC), water-based paint, or existing rooms. After painting, there was no intervention or internal airflow to influence indoor air environment in both classrooms. We prospectively assessed the symptom severity and serious events of allergic diseases between both classrooms at baseline and after one and eight weeks after painting. At one and eight weeks, there were no significant changes in the Childhood Asthma Control Test scores, the fractional nitric oxide levels, lung function in asthmatic children in either classroom. There were also no significant changes in the severity score of AR or AD, or serious events in all allergic diseases. These findings suggest classroom painting with this new paint at the levels encountered in this study might not be a major aggravating factor for school-aged children with allergic diseases.
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Affiliation(s)
- D W Park
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - S-H Kim
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - J-Y Moon
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - J S Song
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - J Choi
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - H J Kwak
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - M G Jeong
- Department of Dermatology, Hanyang University College of Medicine, Seoul, Korea
| | - Y S Ro
- Department of Dermatology, Hanyang University College of Medicine, Seoul, Korea
| | - T H Kim
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - J W Sohn
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - D H Shin
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - S S Park
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - H J Yoon
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
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Abstract
In this study, the hypocholesterolaemic effect of amaranth grain, oil and squalene are examined. In experiment 1, rats are given a semi-purified diet containing 1% (w/w) cholesterol for four weeks and either amaranth grain (AG; 300 g/kg) or amaranth oil (AO; 90 g/kg) substituted in experimental groups. Both AG and AO lowered serum and hepatic cholesterol and triglyceride levels. Faecal excretion of cholesterol and bile acid in the AO group increased, while AG affected only bile acid excretion. In experiment 2, rats were fed the cholesterol diet for four weeks and injected (i.p.) with saline (control), amaranth squalene (AS) or shark liver squalene (SS, 200 mg/kg) for seven days. The hypolipidaemic effects of AS were evident in both serum and liver. In addition, AS markedly increased faecal excretions of cholesterol and bile acid, and slightly inhibited 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase activity. In contrast, none of these effects were observed in the SS group. This preliminary study suggests that the cholesterol-lowering effect of AS may be mediated by increased faecal elimination of steroids through interference with cholesterol absorption, and that different sources of squalene (plant versus animal) may affect cholesterol metabolism differently.
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Affiliation(s)
- D H Shin
- Graduate School of Biotechnology, Korea University, Seoul 136-701, Korea
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17
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Kim YS, Park DY, Shin DH, Yang SM, Seong SY, Yoon JH, Kim CH. Surgical outcomes of primary and revision augmentation rhinoplasty using a processed fascia lata. Am J Rhinol Allergy 2016; 29:141-4. [PMID: 25785756 DOI: 10.2500/ajra.2015.29.4138] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Dorsal augmentation is the most commonly performed procedure in rhinoplasty for Asian patients. Due to the anatomic features of the Asian nose, the use of nonautologous materials to obtain a proper degree of augmentation is inevitable in most cases. Because the use of nonautologous materials possesses a higher risk of complications, surgeons are concerned about selecting suitable materials for the procedure, especially in revision rhinoplasty. Therefore, this study was designed to evaluate the suitability and usefulness of a homologous material, Tutoplast-processed fascia lata (TPFL), in revision augmentation rhinoplasty. METHODS Retrospective analysis of 104 rhinoplasty patients (primary, 86; revision, 18) who had undergone dorsal augmentation using TPFL was conducted. The comparison of surgical outcomes between primary and revision surgery was made using objective [dorsal height (DH) and radix height (RH), complication rate] and subjective (patient satisfaction) parameters. RESULTS The degree of augmentation represented by DH and RH was comparable between primary and revision rhinoplasty using TPFL. In comparing the rate of postoperative complications, only minor incidents were noted, in six cases after primary surgery and in one case after revision surgery. Patient satisfaction was measured in both primary and revision augmentation, with a significant difference observed between the two groups (40.57 ± 9.25 versus 31.48 ± 7.59; p < 0.05). CONCLUSION TPFL is a feasible implant material that delivers suitable augmentation and patient satisfaction with minimal morbidity in both primary and revision rhinoplasty.
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Affiliation(s)
- Yoo Suk Kim
- Department of Otolaryngology, Ajou University, School of Medicine, Suwon, Korea
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18
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Byun JS, Sohn JM, Leem DG, Park B, Nam JH, Shin DH, Shin JS, Kim HJ, Lee KT, Lee JY. In vitro synergistic anticancer activity of the combination of T-type calcium channel blocker and chemotherapeutic agent in A549 cells. Bioorg Med Chem Lett 2015; 26:1073-1079. [PMID: 26739776 DOI: 10.1016/j.bmcl.2015.12.010] [Citation(s) in RCA: 24] [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: 06/06/2015] [Revised: 11/10/2015] [Accepted: 12/04/2015] [Indexed: 01/15/2023]
Abstract
As a result of our continuous research, new 3,4-dihydroquinazoline derivative containing ureido group, KCP10043F was synthesized and evaluated for T-type Ca(2+) channel (Cav3.1) blockade, cytotoxicity, and cell cycle arrest against human non-small cell lung (A549) cells. KCP10043F showed both weaker T-type Ca(2+) channel blocking activity and less cytotoxicity against A549 cells than parent compound KYS05090S [4-(benzylcarbamoylmethyl)-3-(4-biphenylyl)-2-(N,N',N'-trimethyl-1,5-pentanediamino)-3,4-dihydroquinazoline 2 hydrochloride], but it exhibited more potent G1-phase arrest than KYS05090S in A549 cells. This was found to be accompanied by the downregulations of cyclin-dependent kinase (CDK) 2, CDK4, CDK6, cyclin D2, cyclin D3, and cyclin E at the protein levels. However, p27(KIP1) as a CDK inhibitor was gradually upregulated at the protein levels and increased recruitment to CDK2, CDK4 and CDK6 after KCP10043F treatment. Based on the strong G1-phase cell cycle arrest of KCP10043F in A549 cells, the combination of KCP10043F with etoposide (or cisplatin) resulted in a synergistic cell death (combination index=0.2-0.8) via the induction of apoptosis compared with either agent alone. Taken together with these overall results and the favorable in vitro ADME (absorption, distribution, metabolism, and excretion) profiles of KCP10043F, therefore, it could be used as a potential agent for the combination therapy on human lung cancer.
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Affiliation(s)
- Joon Seok Byun
- Research Institute for Basic Sciences and Department of Chemistry, College of Sciences, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Joo Mi Sohn
- Research Institute for Basic Sciences and Department of Chemistry, College of Sciences, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Dong Gyu Leem
- Department of Life and Nanopharmaceutical Science, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Byeongyeon Park
- Research Institute for Basic Sciences and Department of Chemistry, College of Sciences, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Ji Hye Nam
- Research Institute for Basic Sciences and Department of Chemistry, College of Sciences, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Dong Hyun Shin
- Department of Life and Nanopharmaceutical Science, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Ji Sun Shin
- Department of Life and Nanopharmaceutical Science, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Hyoung Ja Kim
- Molecular Recognition Research Center, Future Convergence Research Division, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Kyung-Tae Lee
- Department of Life and Nanopharmaceutical Science, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea.
| | - Jae Yeol Lee
- Research Institute for Basic Sciences and Department of Chemistry, College of Sciences, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea.
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Kim JH, Cho CH, Shin DH, Hong YC, Shin YW. Abatement of fluorinated compounds using a 2.45GHz microwave plasma torch with a reverse vortex plasma reactor. J Hazard Mater 2015; 294:41-46. [PMID: 25841085 DOI: 10.1016/j.jhazmat.2015.03.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Revised: 03/06/2015] [Accepted: 03/07/2015] [Indexed: 06/04/2023]
Abstract
Abatement of fluorinated compounds (FCs) used in semiconductor and display industries has received an attention due to the increasingly stricter regulation on their emission. We have developed a 2.45GHz microwave plasma torch with reverse vortex reactor (RVR). In order to design a reverse vortex plasma reactor, we calculated a volume fraction and temperature distribution of discharge gas and waste gas in RVR by ANSYS CFX of computational fluid dynamics (CFD) simulation code. Abatement experiments have been performed with respect to SF6, NF3 by varying plasma power and N2 flow rates, and FCs concentration. Detailed experiments were conducted on the abatement of NF3 and SF6 in terms of destruction and removal efficiency (DRE) using Fourier transform infrared (FTIR). The DRE of 99.9% for NF3 was achieved without an additive gas at the N2 flow rate of 150 liter per minute (L/min) by applying a microwave power of 6kW with RVR. Also, a DRE of SF6 was 99.99% at the N2 flow rate of 60 L/min using an applied microwave power of 6kW. The performance of reverse vortex reactor increased about 43% of NF3 and 29% of SF6 abatements results definition by decomposition energy per liter more than conventional vortex reactor.
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Affiliation(s)
- J H Kim
- Plasma Technology Research Center, National Fusion Research Institute, 814-2 Oxikdo-dong, Gunsan-city, Jeollabuk-do, South Korea
| | - C H Cho
- Plasma Technology Research Center, National Fusion Research Institute, 814-2 Oxikdo-dong, Gunsan-city, Jeollabuk-do, South Korea
| | - D H Shin
- Plasma Technology Research Center, National Fusion Research Institute, 814-2 Oxikdo-dong, Gunsan-city, Jeollabuk-do, South Korea
| | - Y C Hong
- Plasma Technology Research Center, National Fusion Research Institute, 814-2 Oxikdo-dong, Gunsan-city, Jeollabuk-do, South Korea.
| | - Y W Shin
- Plasma Technology Research Center, National Fusion Research Institute, 814-2 Oxikdo-dong, Gunsan-city, Jeollabuk-do, South Korea; School of Advanced Green Energy and Environments, Handong Global University, Heunghae-eup, Buk-gu, Pohang-city, Gyeongbuk, South Korea
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20
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Park JY, An YR, Kanda N, An CM, An HS, Kang JH, Kim EM, An DH, Jung H, Joung M, Park MH, Yoon SH, Lee BY, Lee T, Kim KW, Park WC, Shin DH, Lee YS, Kim J, Kwak W, Kim HJ, Kwon YJ, Moon S, Kim Y, Burt DW, Cho S, Kim H. Cetaceans evolution: insights from the genome sequences of common minke whales. BMC Genomics 2015; 16:13. [PMID: 25609461 PMCID: PMC4311506 DOI: 10.1186/s12864-015-1213-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Accepted: 01/02/2015] [Indexed: 12/11/2022] Open
Abstract
Background Whales have captivated the human imagination for millennia. These incredible cetaceans are the only mammals that have adapted to life in the open oceans and have been a source of human food, fuel and tools around the globe. The transition from land to water has led to various aquatic specializations related to hairless skin and ability to regulate their body temperature in cold water. Results We present four common minke whale (Balaenoptera acutorostrata) genomes with depth of ×13 ~ ×17 coverage and perform resequencing technology without a reference sequence. Our results indicated the time to the most recent common ancestors of common minke whales to be about 2.3574 (95% HPD, 1.1521 – 3.9212) million years ago. Further, we found that genes associated with epilation and tooth-development showed signatures of positive selection, supporting the morphological uniqueness of whales. Conclusions This whole-genome sequencing offers a chance to better understand the evolutionary journey of one of the largest mammals on earth. Electronic supplementary material The online version of this article (doi:10.1186/s12864-015-1213-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jung Youn Park
- Biotechnology Research Division, National Fisheries Research & Development Institute, Gijang gun, Busan, 619-705, Republic of Korea.
| | - Yong-Rock An
- Cetacean Research Institute, National Fisheries Research & Development Institute, Nam-gu, Ulsan, 680-050, Republic of Korea.
| | - Naohisa Kanda
- The Institute of Cetacean Research, Toyomi 4-5, Chuo-ku, Tokyo, 104-0055, Japan.
| | - Chul-Min An
- Biotechnology Research Division, National Fisheries Research & Development Institute, Gijang gun, Busan, 619-705, Republic of Korea.
| | - Hye Suck An
- Biotechnology Research Division, National Fisheries Research & Development Institute, Gijang gun, Busan, 619-705, Republic of Korea.
| | - Jung-Ha Kang
- Biotechnology Research Division, National Fisheries Research & Development Institute, Gijang gun, Busan, 619-705, Republic of Korea.
| | - Eun Mi Kim
- Biotechnology Research Division, National Fisheries Research & Development Institute, Gijang gun, Busan, 619-705, Republic of Korea.
| | - Du-Hae An
- Cetacean Research Institute, National Fisheries Research & Development Institute, Nam-gu, Ulsan, 680-050, Republic of Korea.
| | - Hojin Jung
- Codes division, Insilicogen,Inc., Suwon, Gyeonggi-do, 441-813, Republic of Korea.
| | - Myunghee Joung
- Codes division, Insilicogen,Inc., Suwon, Gyeonggi-do, 441-813, Republic of Korea.
| | - Myung Hum Park
- TNT Research, #924 Doosan Venture Digm, Anyang, Gyeonggi-do, 431-755, Republic of Korea.
| | - Sook Hee Yoon
- Department of Agricultural Biotechnology, Seoul National University, Seoul, 151-921, Republic of Korea.
| | - Bo-Young Lee
- Department of Agricultural Biotechnology, Seoul National University, Seoul, 151-921, Republic of Korea.
| | - Taeheon Lee
- Department of Agricultural Biotechnology, Seoul National University, Seoul, 151-921, Republic of Korea.
| | - Kyu-Won Kim
- Interdisciplinary Program in Bioinformatics, Seoul National University, Seoul, 151-742, Republic of Korea.
| | - Won Cheoul Park
- Department of Agricultural Biotechnology, Seoul National University, Seoul, 151-921, Republic of Korea.
| | - Dong Hyun Shin
- Department of Agricultural Biotechnology, Seoul National University, Seoul, 151-921, Republic of Korea.
| | - Young Sub Lee
- Interdisciplinary Program in Bioinformatics, Seoul National University, Seoul, 151-742, Republic of Korea.
| | - Jaemin Kim
- Interdisciplinary Program in Bioinformatics, Seoul National University, Seoul, 151-742, Republic of Korea. .,C&K Genomics, Seoul National University Research Park, Seoul, 151-919, Republic of Korea.
| | - Woori Kwak
- Interdisciplinary Program in Bioinformatics, Seoul National University, Seoul, 151-742, Republic of Korea. .,C&K Genomics, Seoul National University Research Park, Seoul, 151-919, Republic of Korea.
| | - Hyeon Jeong Kim
- C&K Genomics, Seoul National University Research Park, Seoul, 151-919, Republic of Korea.
| | - Young-Jun Kwon
- Interdisciplinary Program in Bioinformatics, Seoul National University, Seoul, 151-742, Republic of Korea.
| | - Sunjin Moon
- Department of Genome Sciences, University of Washington, Seattle, WA, 98195-5065, USA.
| | - Yuseob Kim
- Department of Life Science, Ewha Womans University, Seoul, Korea.
| | - David W Burt
- The Roslin Institute, University of Edinburgh, Midlothian, EH25 9GR, UK.
| | - Seoae Cho
- C&K Genomics, Seoul National University Research Park, Seoul, 151-919, Republic of Korea.
| | - Heebal Kim
- Department of Agricultural Biotechnology, Seoul National University, Seoul, 151-921, Republic of Korea. .,Interdisciplinary Program in Bioinformatics, Seoul National University, Seoul, 151-742, Republic of Korea. .,C&K Genomics, Seoul National University Research Park, Seoul, 151-919, Republic of Korea.
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Yu GI, Jun SE, Cho HC, Park KO, Chung JH, Shin DH, Chung IS. Association of interleukin-10 promoter region polymorphisms with risk factors of Atherosclerosis. Int J Immunogenet 2014; 42:31-7. [PMID: 25421362 DOI: 10.1111/iji.12156] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Revised: 09/24/2014] [Accepted: 10/06/2014] [Indexed: 11/27/2022]
Abstract
Atherosclerosis is considered as an inflammatory disease, and carotid artery intima-media thickness (IMT) and carotid plaque are generally used as intermediated phenotype of atherosclerosis. The aim of this study was to investigate whether carotid IMT and plaque are associated with promoter region polymorphisms of interleukin 10 (IL-10) gene. We recruited 135 subjects from a rural area of south-eastern part of South Korea. Three polymorphisms in the promoter region of IL-10 (-1082 A/G, -819 T/C and -592 A/C) were genotyped by pyrosequencing. Carotid IMT was measured at common carotid arteries, and carotid bulbs and cardiovascular risk factors such as cholesterol, blood pressure, uric acid and homocysteine were measured using blood samples. Subjects with the minor allele (C) of -819 T/C or the minor allele (C) of -592 A/C showed lower values in carotid IMT than those with major allele homozygote of each polymorphism (P = 0.018 and P = 0.031, respectively). Subjects with carotid plaque were significantly older and showed higher values in carotid IMT, uric acid and homocysteine than those without plaque (P < 0.01, respectively). In conclusion, the promoter region polymorphisms of IL-10 gene associate with carotid IMT and plaque. Further studies with larger samples are needed to provide stronger evidence to justify anti-atheromatous properties of IL-10.
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Affiliation(s)
- G I Yu
- Department of Preventive Medicine, School of Medicine, Keimyung University, Daegu, Korea
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Kwon TR, Yoo KH, Oh CT, Shin DH, Choi EJ, Jung SJ, Hong H, Choi YS, Kim BJ. Improved methods for selective cryolipolysis results in subcutaneous fat layer reduction in a porcine model. Skin Res Technol 2014; 21:192-200. [PMID: 25220194 DOI: 10.1111/srt.12176] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/16/2014] [Indexed: 12/28/2022]
Abstract
BACKGROUND/AIMS Cryolipolysis is a noninvasive method for the selective reduction of localized fat tissues. It has demonstrated efficacy in both clinical and preclinical trials; however, despite its popularity, its mechanisms of action and evaluation methods are not yet fully defined. The purpose of this study was to improved methods for cryolipolysis using a porcine model. METHODS The abdomens of female PWG micro-pigs were treated with a cooling device (CRYOLIPO II(™)), and we examined the treatment effects using photography, three-dimensional photography, ultrasound, gross, and microscopic pathology, and serum lipid level analyses in order to determine the mechanism of action, efficacy, and safety of CRYOLIPO II(™). RESULTS CRYOLIPO II(™) successfully reduced abdominal fat in our porcine model. Gross and microscopic histological results confirmed the noninvasive cold-induced selective subcutaneous fat destruction, and showed increases in pre-adipocyte differentiation and in the activation of lipid catabolism. In particular, we found that CRYOLIPO II(™) may increase PPARδ (delta) levels in adipose tissue at 30-60 days post-treatment. CONCLUSION Fat reduction by cryolipolysis was successfully achieved in our porcine model. Thus, our findings indicate that CRYOLIPO II(™) may be a promising fat reduction device for body contouring and fat reduction in humans, and that cryolipolysis exerts its effects, at least partly, by targeting the PPARδ signaling pathway. These results show that both investigative and diagnostic potentials capacity.
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Affiliation(s)
- T-R Kwon
- Department of Medicine, Graduate School, Chung-Ang University, Seoul, Korea; Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
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Kim MK, Shin J, Kweon SS, Shin DH, Lee YH, Chun BY, Choi BY. Harmful and beneficial relationships between alcohol consumption and subclinical atherosclerosis. Nutr Metab Cardiovasc Dis 2014; 24:767-776. [PMID: 24694837 DOI: 10.1016/j.numecd.2014.02.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [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: 08/24/2012] [Revised: 01/20/2014] [Accepted: 02/03/2014] [Indexed: 12/22/2022]
Abstract
BACKGROUND AND AIMS Arterial stiffness and increased intima-media wall thickness are two of the main predictors of cardiovascular disease (CVD). We evaluated whether brachial-ankle pulse wave velocity (baPWV) and common carotid artery intima-media wall thickness (CCA-IMT) are correlated with alcohol consumption in a cross-sectional study among Korean men and women aged 40 years and over. METHODS AND RESULTS All 5539 subjects (2121 men and 3418 women) were participants in the Multi-Rural Communities cohort (MRcohort) study, a part of the Korean Genome Epidemiology Study (KoGES). The baPWV was positively correlated with alcohol consumption in men (p for trend <0.0001). Age (middle-aged versus elderly) modified the effect of alcohol consumption on PWV. On the other hand CCA-IMT decreased with alcohol consumption in men. There was no favorable zone of alcohol consumption in terms of baPWV and CCA-IMT. Adjustment for lipid profiles substantially attenuated the relationship between alcohol consumption and CCA-IMT. There was no clear relation between alcohol consumption and baPWV/CCA-IMT in women. CONCLUSIONS Along with a linear harmful relationship between alcohol consumption and arterial stiffness in men there may also be a beneficial relationship between alcohol consumption and carotid intima-wall thickness. The effect of alcohol on arterial stiffness may be slightly stronger in elderly men, and the effect of alcohol on CCA-IMT may be mediated by lipid factors.
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Affiliation(s)
- M K Kim
- Department of Preventive Medicine, College of Medicine, Hanyang University, Seoul, South Korea.
| | - J Shin
- Department of Internal Medicine, College of Medicine, Hanyang University, Seoul, South Korea
| | - S-S Kweon
- Department of Preventive Medicine, Chonnam National University Medical School, Gwangju, South Korea; Jeonnam Regional Cancer Center, Chonnam National University Hwasun Hospital, Hwasun, South Korea
| | - D H Shin
- Department of Occupational and Environmental Medicine, Keimyung University Dongsan Medical Center, Daegu, South Korea
| | - Y-H Lee
- Department of Preventive Medicine & Institute of Wonkwang Medical Science, Wonkwang University College of Medicine, Iksan, South Korea
| | - B-Y Chun
- Department of Preventive Medicine, School of Medicine, and Health Promotion Research Center, Kyungpook National University, Daegu, South Korea
| | - B Y Choi
- Department of Preventive Medicine, College of Medicine, Hanyang University, Seoul, South Korea
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Jo HJ, Kim YH, Shin DH, Kim MJ, Lee SJ, Jeon DO, Im SG, Jang SK, Choi JY. Hyponatremia after thyroid hormone withdrawal in a patient with papillary thyroid carcinoma. Endocrinol Metab (Seoul) 2014; 29:77-82. [PMID: 24741458 PMCID: PMC3970286 DOI: 10.3803/enm.2014.29.1.77] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2012] [Accepted: 03/12/2013] [Indexed: 01/20/2023] Open
Abstract
Hyponatremia is an electrolyte abnormality commonly found in clinical practice. It is important to diagnose the underlying etiology of the hyponatremia and correct it appropriately because severe hyponatremia can cause serious complications and substantially increase the risk of mortality. Although hypothyroidism is known to be a cause of hyponatremia, it is rare that hyponatremia occurs in relation to hypothyroidism induced by thyroid hormone withdrawal in patients with differentiated thyroid cancer. We report a case of a 76-year-old woman with papillary thyroid carcinoma presenting with severe hyponatremia related to hypothyroidism induced by thyroid hormone withdrawal for radio-active iodine whole-body scanning, who was treated by thyroid hormone replacement and hydration. Considering that the incidence of differentiated thyroid cancer is rapidly increasing, physicians should be aware that, although uncommon, hyponatremia can occur in patients undergoing radioiodine therapy or diagnostic testing.
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Affiliation(s)
- Hyo Jin Jo
- Department of Internal Medicine, Bundang Jesaeng Hospital, Kwandong University College of Medicine, Seongnam, Korea
| | - Yong Hyun Kim
- Department of Internal Medicine, Bundang Jesaeng Hospital, Kwandong University College of Medicine, Seongnam, Korea
| | - Dong Hyun Shin
- Department of Internal Medicine, Bundang Jesaeng Hospital, Kwandong University College of Medicine, Seongnam, Korea
| | - Mi Jeoung Kim
- Department of Internal Medicine, Bundang Jesaeng Hospital, Kwandong University College of Medicine, Seongnam, Korea
| | - Sang Jin Lee
- Department of Internal Medicine, Bundang Jesaeng Hospital, Kwandong University College of Medicine, Seongnam, Korea
| | - Dong Ok Jeon
- Department of Internal Medicine, Bundang Jesaeng Hospital, Kwandong University College of Medicine, Seongnam, Korea
| | - Sung Gyu Im
- Department of Internal Medicine, Bundang Jesaeng Hospital, Kwandong University College of Medicine, Seongnam, Korea
| | - Sun Kyung Jang
- Department of Internal Medicine, Bundang Jesaeng Hospital, Kwandong University College of Medicine, Seongnam, Korea
| | - Jin Young Choi
- Department of Internal Medicine, Bundang Jesaeng Hospital, Kwandong University College of Medicine, Seongnam, Korea
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Choi MH, Hong JM, Lee JS, Shin DH, Choi HA, Lee K. Preferential location for arterial dissection presenting as golf-related stroke. AJNR Am J Neuroradiol 2013; 35:323-6. [PMID: 24184518 DOI: 10.3174/ajnr.a3768] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
SUMMARY Golf-related stroke has not been systematically reviewed. The purpose of our study was to describe in detail this particular stroke syndrome. Seven patients were analyzed at a university hospital and 7 patients were reviewed from MEDLINE literature. General demographics, symptom onset, neurologic signs, radiologic findings, and outcome were investigated. A total of 14 patients including 7 patients from the MEDLINE search were analyzed; all were men, with a mean age of 46.9 ± 12.8 years. Symptom onset was classified as during the golf swing (n = 9), unknown (n = 3), and after playing golf (n = 2). Most patients (n = 12) showed involvement of the vertebral artery and 2 patients showed involvement of the internal carotid artery (P = .008). Nine dissections were found on the right side, 3 on the left side, and 2 were bilateral (P = .046). Twelve patients had extracranial involvement and 2 patients had intracranial involvement (P = .008). Seven patients returned to normal, 5 returned to independence, 1 had unknown status, and 1 died. The anatomic preference of golf-related craniocervical arterial dissection is associated with the extracranial and vertebrobasilar system with a right-sided tendency as the result of stereotypical rotational movement during a golf swing.
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Affiliation(s)
- M H Choi
- From the Department of Neurology, Ajou University School of Medicine, Suwon, South Korea (M.H.C., J.M.H., J.S.L.)
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Lee BY, Shin DH, Cho S, Seo KS, Kim H. Genome-wide analysis of copy number variations reveals that aging processes influence body fat distribution in Korea Associated Resource (KARE) cohorts. Hum Genet 2012; 131:1795-804. [DOI: 10.1007/s00439-012-1203-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2011] [Accepted: 07/11/2012] [Indexed: 12/26/2022]
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Lee JS, Hong JM, Kim EJ, Shin DH, Joo IS, Lim YC, Suh SH, Kim SY. Comparison of the Incidence of parenchymal hematoma and poor outcome in patients with carotid terminus occlusion treated with intra-arterial urokinase alone or with combined IV rtPA and intra-arterial urokinase. AJNR Am J Neuroradiol 2011; 33:175-9. [PMID: 21998105 DOI: 10.3174/ajnr.a2722] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Patients with acute CTO generally have a poor prognosis, despite IV or IA thrombolytic treatment. The goal of this study was to analyze the results of patients with CTO who had IA urokinase treatment with or without initial IV rtPA based on a bridging protocol. MATERIALS AND METHODS Sixteen consecutive patients with acute ischemic stroke due to CTO who had combined IV and IA or a single IA thrombolytic treatment were enrolled. The baseline characteristics and prognosis were described. The patients who did and did not develop a PH shortly after treatment were compared. RESULTS The mean age was 66.4 years, and the median initial NIHSS score was 17. The median dose of IA urokinase was 320,000 U, and recanalization (TICI grade II-III) was achieved in 12 patients (75%). However, 5 patients died and 10 patients had poor prognosis with mRS 5-6 at discharge. Six patients (37.5%) with a PH had a higher NIHSS score 1 day after treatment (26.7 versus 13.6, P = .002), and they had more frequent mortality (66.7% versus 10.0%, P = .018) and worse prognosis (mRS 5-6; 100% versus 40%, P = .016) at discharge than patients without PH. CONCLUSIONS Patients with CTO who received IA urokinase treatment based on a bridging protocol had a poor prognosis. The development of PH might affect this outcome.
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Affiliation(s)
- J S Lee
- Departments of Radiology, Ajou University School of Medicine, Ajou University Hospital, Suwon, South Korea
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Kim JH, Shin JH, Shin DH, Moon MW, Park K, Kim TH, Shin KM, Won YH, Han DK, Lee KR. Comparison of diamond-like carbon-coated nitinol stents with or without polyethylene glycol grafting and uncoated nitinol stents in a canine iliac artery model. Br J Radiol 2011; 84:210-5. [PMID: 21325363 DOI: 10.1259/bjr/21667521] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE Neointimal hyperplasia is a major complication of endovascular stent placement with consequent in-stent restenosis or occlusion. Improvements in the biocompatibility of stent designs could reduce stent-associated thrombosis and in-stent restenosis. We hypothesised that the use of a diamond-like carbon (DLC)-coated nitinol stent or a polyethylene glycol (PEG)-DLC-coated nitinol stent could reduce the formation of neointimal hyperplasia, thereby improving stent patency with improved biocompatibility. METHODS A total of 24 stents were implanted, under general anaesthesia, into the iliac arteries of six dogs (four stents in each dog) using the carotid artery approach. The experimental study dogs were divided into three groups: the uncoated nitinol stent group (n = 8), the DLC-nitinol stent group (n = 8) and the PEG-DLC-nitinol stent group (n = 8). RESULTS The mean percentage of neointimal hyperplasia was significantly less in the DLC-nitinol stent group (26.7±7.6%) than in the nitinol stent group (40.0±20.3%) (p = 0.021). However, the mean percentage of neointimal hyperplasia was significantly greater in the PEG-DLC-nitinol stent group (58.7±24.7%) than in the nitinol stent group (40.0±20.3%) (p = 0.01). CONCLUSION Our findings indicate that DLC-coated nitinol stents might induce less neointimal hyperplasia than conventional nitinol stents following implantation in a canine iliac artery model; however, the DLC-coated nitinol stent surface when reformed with PEG induces more neointimal hyperplasia than either a conventional or DLC-coated nitinol stent.
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Affiliation(s)
- J H Kim
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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Kim J, Han SJ, Shin DH, Lee WS, Choi JY. Subthreshold continuous electrical stimulation facilitates functional recovery of facial nerve after crush injury in rabbit. Muscle Nerve 2011; 43:251-8. [PMID: 21254091 DOI: 10.1002/mus.21840] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
We sought to determine whether electrical stimulation (ES) with subthreshold, continuous, low-frequency impulses is a viable clinical method for improving functional recovery after facial nerve crush injury. In 10 rabbits, bilateral crush injuries were made on the facial nerve by compression for 30 s with mosquito forceps, causing complete facial paralysis. Subthreshold continuous direct current ES with 20-Hz square-wave pulses was applied to the proximal stump on one side for 4 weeks. Vibrissae movement returned significantly earlier on the ES side, with a less variable recovery time. Electrophysiologically, the stimulated side had a significantly shorter latency, longer duration, and faster conduction velocity. Light and transmission electron microscopy revealed that the electrical stimulation also markedly decreased Wallerian degeneration. The average numbers of fluorescent, double-labeled nerve cells were significantly different between the ES and non-ES sides. This study shows that subthreshold, continuous, low-frequency ES immediately after a crush injury of the facial nerve results in earlier recovery of facial function and shorter overall recovery time.
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Affiliation(s)
- Jin Kim
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul 120-752, Korea
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Moon GJ, Shin DH, Im DS, Bang OY, Nam HS, Lee JH, Joo IS, Huh K, Gwag BJ. Identification of oxidized serum albumin in the cerebrospinal fluid of ischaemic stroke patients. Eur J Neurol 2011; 18:1151-8. [PMID: 21299736 DOI: 10.1111/j.1468-1331.2011.03357.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND AND PURPOSE Extensive evidence has shown that oxidative stress mediates neuronal death in animal models of hypoxic-ischaemia. Brain biomarkers of oxidative stress need to be identified in order to better understand and treat brain damage in human stroke patients. The present study was conducted to identify potential target proteins of oxidative stress in the cerebrospinal fluid (CSF) of stroke patients with acute ischaemic brain injury. METHODS We performed two-dimensional polyacrylamide gel electrophoresis to separate protein samples obtained from the CSF of control and stroke patients. To determine protein oxidation levels, oxyblot was then used to detect protein carbonyls that were determined by formation of a stable 2,4-dinitrophenylhydrazine (DNP) product using an anti-DNP antibody. RESULTS We found that oxidation of serum albumin was increased in the CSF from stroke patients as well as rats who underwent permanent middle cerebral artery occlusion (6.5%, 23%, respectively). In stroke patients, oxidized albumin levels correlated to neurologic indications. CONCLUSIONS The present study suggests that oxidized albumin in CSF can be utilized as an oxidative stress marker in human stroke patients.
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Affiliation(s)
- G J Moon
- Research Institute for Neural Science and Technology, Ajou University School of Medicine, Suwon, South Korea
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Park JY, Kim YS, Shin DH, Choi JS, Kim KH, Bae YK. Primary cutaneous peripheral T-cell lymphoma in a patient with X-linked agammaglobulinaemia. Br J Dermatol 2010; 164:677-9. [PMID: 21083545 DOI: 10.1111/j.1365-2133.2010.10142.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
MESH Headings
- Adult
- Agammaglobulinemia/complications
- Antigens, CD/analysis
- Genetic Diseases, X-Linked/complications
- Humans
- Immunohistochemistry
- Lymphoma, T-Cell, Cutaneous/immunology
- Lymphoma, T-Cell, Cutaneous/pathology
- Lymphoma, T-Cell, Peripheral/immunology
- Lymphoma, T-Cell, Peripheral/pathology
- Male
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Lee BY, Cho S, Shin DH, Kim H. Genome-wide association study of copy number variations associated with pulmonary function measures in Korea Associated Resource (KARE) cohorts. Genomics 2010; 97:101-5. [PMID: 21059387 DOI: 10.1016/j.ygeno.2010.11.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2010] [Revised: 10/29/2010] [Accepted: 11/02/2010] [Indexed: 01/13/2023]
Abstract
Copy number variation (CNV) is an attractive emerging approach to study the association with various diseases. We performed a CNV-based genome-wide association study of pulmonary function measures (FEV(1), FVC, and FEV(1)/FVC) in KARE cohorts. Affymetrix Genome-wide Human SNP Array 5.0 was used to measure genome-wide variation and CNV segmentation was performed using Golden Helix SVS 7.0. Single and multivariate regressions were used for the association study using the R statistical package and the Dabatase for Annotation, Visualization and Integrated (DAVID v6.7b) tool for the functional annotation. We identified significantly associated 1260 CNVs with pulmonary function measures of FEV(1) and FVC. Functional gene classification and annotation analysis found 5 highly enriched clusters, the BPI/LBP/Plunc superfamily, myosin, serpin peptidase inhibitor, protein tyrosine phosphatase, and olfactory receptors. According to the functional annotation, gene-based CNVs are likely to be involved in the pathogenesis and inflammatory responsiveness of pulmonary diseases.
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Affiliation(s)
- Bo-Young Lee
- Department of Agricultural Biotechnology and Research Institute for Agriculture and Life Sciences, Seoul National University, San 56-1, Sillim-dong, Gwanak-gu, Seoul 151-742, Republic of Korea.
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Kim S, Kim CO, Shin DH, Hong SH, Kim MC, Kim J, Choi SH, Kim T, Elliman RG, Kim YM. Self-assembled growth and luminescence of crystalline Si/SiOx core-shell nanowires. Nanotechnology 2010; 21:205601. [PMID: 20413841 DOI: 10.1088/0957-4484/21/20/205601] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Crystalline Si/SiOx core/shell nanowires (NWs) are self-assembled by annealing Ni-coated hydrogenated Si-rich SiOx (SRO:H) films at 1100 degrees C in the presence of Si powder. Plasma-enhanced chemical vapor deposition is used to grow 100 nm SRO:H thin films with varying silicon concentration (n(Si)). The NWs vary from SiOx nanowires to Si/SiOx core/shell structures depending on the composition of the SRO:H substrate, with the fraction of core/shell structures increasing with increasing Si concentration. As n(Si) increases from 37 to 43 at.%, the average diameter of the NWs also increases from 48 to 157 nm. A growth model based on the diffusion-assisted vapor-liquid-solid mechanism is proposed to explain how the core/shell structures are self-assembled. Photoluminescence (PL) spectra of the individual NWs have two major emission bands in the near UV (381 nm) and blue (423 nm) ranges at n(Si) = 43 at.%, named as UV and BL PL bands, respectively. In contrast, only the BL PL band is observed at n(Si) < or = 39 at.%. These results suggest that the BL and UV PL bands can be attributed to the defect states in the SiOx shell and at the Si core/SiOx shell interface, respectively, and that the BL band is closely related to the growth process of the NWs.
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Affiliation(s)
- S Kim
- Department of Applied Physics, College of Applied Science, Kyung Hee University, Yongin 446-701, Korea
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Song MJ, Baek I, Jeon SB, Seo M, Kim YH, Cui S, Jeong YS, Lee IJ, Shin DH, Hwang YH, Kim IK. Effects of glyceollin I on vascular contraction in rat aorta. Naunyn Schmiedebergs Arch Pharmacol 2010; 381:517-28. [DOI: 10.1007/s00210-010-0513-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2009] [Accepted: 03/08/2010] [Indexed: 12/15/2022]
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Shin DH, Chai JY, Park EA, Lee W, Lee H, Lee JS, Choi YM, Koh BJ, Park JB, Oh CS, Bok GD, Kim WL, Lee E, Lee EJ, Seo M. Finding ancient parasite larvae in a sample from a male living in late 17th century Korea. J Parasitol 2010; 95:768-71. [PMID: 19071966 DOI: 10.1645/ge-1763.1] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2008] [Accepted: 11/19/2008] [Indexed: 11/10/2022] Open
Abstract
Parasitological examination of samples from tombs of the Korean Joseon Dynasty (1392-1910) could be helpful to researchers in understanding parasitic infection prevalence in pre-industrial Korean society. Whereas most of our previous parasitological studies revealed the presence of ancient parasite eggs in coprolites of Korean mummies, a sample from a man living in late 17th century Korea proved to be relatively unique in possessing what appeared to be several species of parasite larvae. The larvae identified included Strongyloides stercoralis and Trichostrongylus spp., along with eggs of Ascaris lumbricoides, Trichuris trichiura, and Paragonimus westermani. Since ancient parasite larvae retain enough morphology to make proper species identification possible, even after long burial times, the examination of parasite larvae within ancient samples will be conducted more carefully in our future work.
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Affiliation(s)
- D H Shin
- Institute of Forensic Medicine, Seoul National University, Seoul 110-799, South Korea
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Lim YK, Kwak JW, Kim DW, Shin DH, Yoon MG, Ahn SH, Park SA, Lee DH, Lee SB, Park SY, Kim DY. SU-FF-J-71: A Prototype Fiducial Marker Composed of Gold Nanoparticles and Bone Cement for Proton Therapy of Prostate Cancers. Med Phys 2009. [DOI: 10.1118/1.3181363] [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: 11/07/2022] Open
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Kim HY, Lee SB, Chung YH, Lim CH, Yu IJ, Park SC, Shin JY, Kim SH, Shin DH, Kim JC. Evaluation of Subchronic Inhalation Toxicity of Dimethyl Disulfide in Rats. Inhal Toxicol 2008; 18:395-403. [PMID: 16513596 DOI: 10.1080/08958370500516291] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
This study was carried out to investigate the potential subchronic inhalation toxicity of dimethyl disulfide (DMDS) via whole-body exposure in F344 rats. Groups of 10 rats of each sex were exposed to DMDS vapor by whole-body exposure at concentrations of 0, 5, 25, or 125 ppm for 6 h/day, 5 days/wk for 13 wk. All the rats were sacrificed at the end of treatment period. During the test period, clinical signs, mortality, body weights, food consumption, ophthalmoscopy, urinalysis, hematology, serum biochemistry, gross findings, organ weights, and histopathology were examined. At 25 ppm, a decrease in the body weight gain, food intake, aspartate aminotransferase (AST), alanine aminotransferase (ALT), and blood urea nitrogen (BUN) was observed in the males, but not in the females. However, at 125 ppm, a decrease in the body weight gain, food intake, and thymus weight and an increase in the weights of adrenal glands were observed in both genders. Serum biochemical investigations revealed a decrease in the AST, ALT, BUN, creatine phosphokinase (CPK), and triglyceride levels and an increase in the glucose level. In contrast, no treatment-related effects were observed in the 5 ppm group. The toxic potency of DMDS was slightly higher in males than that in females. In these experimental conditions, the target organ was not determined in rats. The no-observed-adverse-effect concentration (NOAEC) was found to be 5 ppm, 6 h/day for male rats and 25 ppm, 6 h/day for female rats.
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Affiliation(s)
- H Y Kim
- Industrial Chemicals Research Center, Industrial Safety and Health Research Institute, Korea Industrial Safety Corporation, Daejeon, South Korea
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Yoo HJ, An HG, Park SY, Ryu OH, Kim HY, Seo JA, Hong EG, Shin DH, Kim YH, Kim SG, Choi KM, Park IB, Yu JM, Baik SH. Use of a real time continuous glucose monitoring system as a motivational device for poorly controlled type 2 diabetes. Diabetes Res Clin Pract 2008; 82:73-9. [PMID: 18701183 DOI: 10.1016/j.diabres.2008.06.015] [Citation(s) in RCA: 129] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2008] [Revised: 06/04/2008] [Accepted: 06/11/2008] [Indexed: 10/21/2022]
Abstract
OBJECTIVE The use of a real time continuous glucose monitoring system (RT-CGM) was studied as a behavior modification tool and the effectiveness of a RT-CGM in glucose control for patients with type 2 diabetes was determined. METHODS We conducted a prospective, open-label, randomized, controlled clinical trial in 65 patients with poorly controlled type 2 diabetes (8.0</=HbA1c</=10%) over a 3-month period. The intervention group was monitored monthly with a RT-CGM (three days at a time for 3 months) and the control group continued self-monitoring blood glucose (SMBG) at least four times a week for 3 months. RESULTS The HbA1c of the RT-CGM group was significantly reduced after 12 weeks compared with the SMBG group (9.1+/-1.0% to 8.0+/-1.2% vs. 8.7+/-0.7% to 8.3+/-1.1%, respectively; P=0.004). In the RT-CGM group, there was a significant reduction in total daily calorie intake, weight, body mass index (BMI), and postprandial glucose level, and a significant increase in total exercise time per week after 3 months. CONCLUSIONS We demonstrated that the RT-CGM was useful in modifying a patient's diet and exercise habits and could induce better glycemic control than SMBG for patients with type 2 diabetes.
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Affiliation(s)
- H J Yoo
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University Medical Center, Korea University College of Medicine, Seoul 152-050, Republic of Korea
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Seok YM, Baek I, Kim YH, Jeong YS, Lee IJ, Shin DH, Hwang YH, Kim IK. Isoflavone attenuates vascular contraction through inhibition of the RhoA/Rho-kinase signaling pathway. J Pharmacol Exp Ther 2008; 326:991-8. [PMID: 18577703 DOI: 10.1124/jpet.108.138529] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Isoflavones decrease blood pressure, improve lipid profiles, and restore vascular function. We hypothesized that isoflavone attenuates vascular contraction by inhibiting RhoA/Rho-kinase signaling pathway. Rat aortic rings were denuded of endothelium, mounted in organ baths, and contracted with 11,9 epoxymethano-prostaglandin F(2alpha) (U46619), a thromboxane A2 analog, or KCl 30 min after the pretreatment with genistein (4',5,7-trihydroxyisoflavone), daidzein (4',7-dihydroxyisoflavone), or vehicle. We determined the phosphorylation level of the myosin light chain (MLC(20)), myosin phosphatase-targeting subunit 1 (MYPT1), and protein kinase C-potentiated inhibitory protein for heterotrimeric myosin light-chain phosphatase of 17 kDa (CPI17) by means of the Western blot. We also measured the amount of GTP RhoA as a marker regarding RhoA activation. The cumulative additions of U46619 or KCl increased vascular tension in a concentration-dependent manner, which were inhibited by pretreatment with genistein or daidzein. Both U46619 (30 nM) and KCl (50 mM) increased MLC(20) phosphorylation levels, which were inhibited by genistein and daidzein. Furthermore, both genistein and daidzein decreased the amount of GTP RhoA activated by either U46619 or KCl. U46619 (30 nM) increased phosphorylation of the MYPT1(Thr855) and CPI17(Thr38), which were also inhibited by genistein or daidzein. However, neither genistein nor daidzein inhibited phorbol 12,13-dibutyrate-induced vascular contraction and CPI17 phosphorylation. In conclusion, isoflavone attenuates vascular contraction, at least in part, through inhibition of the RhoA/Rho-kinase signaling pathway.
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Affiliation(s)
- Young Mi Seok
- Department of Pharmacology, Kyungpook National University School of Medicine, Daegu 700-422, Republic of Korea
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Abstract
BACKGROUND AND PURPOSE The traditional paradigm has regarded essential tremor (ET) as a benign disorder. However, recent clinical, neuroimaging, and neuropathologic studies suggest that ET may be a progressive neurologic disorder. Based on clinicopathologic findings that cerebellum and its outflow are the key structures in ET and degeneration of gray matter in cerebellum is followed by consequent wallerian degeneration of white matter (WM) fibers, the aim of the present study was to investigate changes in anisotropy in patients with ET. MATERIALS AND METHODS Fractional anisotropy (FA) images were generated from DTI data acquired at 1.5T in 10 patients with ET compared with 8 control subjects by using statistical parametric mapping to make voxel-by-voxel comparisons. RESULTS Compared with the control subjects, the patients with ET exhibited significantly reduced FA (P(uncorrected) < .005) in the anterolateral portion of the right pons and decreased FA in the bilateral cerebellum, left retrorubral area of the midbrain, and bilateral deep WM, including the orbitofrontal, lateral frontal, parietal, and temporal WM. CONCLUSION This study demonstrates that structural changes in the WM are extensive in patients with ET, supporting the findings of previous functional neuroimaging and pathologic studies.
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Affiliation(s)
- D H Shin
- Department of Neurology, Ajou University College of Medicine, Suwon, South Korea
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Abstract
Hypoxia-inducible factor-1alpha (HIF-1alpha) is destabilized via the ubiquitin-proteasome system. Thus HIF-1alpha expression is robustly upregulated by proteasome inhibition, but paradoxically its activity is reduced. In the present study, we investigated the mechanism underlying the paradoxical response of HIF-1alpha to proteasome inhibition. In both Hep3B and HEK293 cells, a proteasome inhibitor MG132 noticeably attenuated hypoxic induction of erythropoietin and VEGF mRNAs. MG132 inactivated HIF-1alpha C-terminal transactivation domain (CAD), independently of factor inhibiting HIF-1 (FIH) and inhibited p300 recruitment by HIF-1alpha. We next tested the possibility that CITED2 is involved in the HIF-1 inactivation. CITED2 was found to be degraded via the ubiquitin-proteasome system and thus was stabilized by proteasome inhibition. Both the activity and the p300 binding of HIF-1alpha were inhibited by CITED2 expression and recovered by CITED2 siRNA in the presence of MG132. These results suggest that CITED2 is stabilized by proteasome inhibition and inactivates HIF-1 by interfering with the HIF-1alpha-p300 interaction. This may be an important mode-of-action for proteasome inhibition-based cancer therapy.
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Affiliation(s)
- D H Shin
- Department of Pharmacology, Seoul National University College of Medicine, 28 Yongon-dong, Chongno-gu, Seoul, Korea
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Kim JC, Shin JY, Yang YS, Shin DH, Moon CJ, Kim SH, Park SC, Kim YB, Kim HC, Chung MK. Evaluation of developmental toxicity of amitraz in Sprague-Dawley rats. Arch Environ Contam Toxicol 2007; 52:137-44. [PMID: 17083001 DOI: 10.1007/s00244-006-0021-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2006] [Accepted: 07/12/2006] [Indexed: 05/12/2023]
Abstract
This study investigated the potential adverse effects of amitraz on the initiation and maintenance of pregnancy in Sprague-Dawley rats as well as its effects on embryo-fetal development after maternal exposure during the entire pregnancy period. Amitraz was administered to pregnant rats by gavage from days 1 to 19 of gestation at dose levels of 0, 3, 10, and 30 mg/kg/day. All dams underwent a caesarean section on day 20 of gestation and their fetuses were examined for any external, visceral, and skeletal abnormalities. At 30 mg/kg, maternal toxicity manifested as an increase in the incidence of abnormal clinical signs and a lower body weight gain and food intake. Developmental toxicity included an increase in the fetal death rate, a decrease in the litter size, and a reduction in the fetal body weight. In addition, there was an increase in the incidence of fetal external, visceral, and skeletal abnormalities. At 10 mg/kg, maternal toxicity observed included a decrease in the body weight gain and a decrease in food intake. In addition, minimal developmental toxicity, including a decrease in the fetal body weight, an increase in the visceral and skeletal aberrations, and a delay in fetal ossification. There were no signs of either maternal toxicity or developmental toxicity at 3 mg/kg. These results show that amitraz administered during the entire pregnancy period in rats is embryotoxic and teratogenic at the maternally toxic dose (i.e., 30 mg/kg/day) and is minimally embryotoxic at a minimally maternally toxic dose (i.e., 10 mg/kg/day). Under these experimental conditions, the no-observed-adverse-effect level of amitraz for both dams and embryo-fetal development is estimated to be 3 mg/kg/day.
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Affiliation(s)
- J C Kim
- College of Veterinary Medicine, Chonnam National University, Gwangju, 500-757, South Korea.
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Lee EB, Lee YJ, Shin DH, Choi YM, Park MH, Pandey JP, Song YW. Immunoglobulin GM and KM genotypes in Korean patients with systemic lupus erythematosus. Rheumatol Int 2006; 27:219-24. [PMID: 16944158 DOI: 10.1007/s00296-006-0192-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2005] [Accepted: 08/01/2006] [Indexed: 10/24/2022]
Abstract
Systemic lupus erythematosus (SLE) is an autoimmune disease characterized by immune complex deposition. We genotyped immunoglobulin allotypes of G1M (f,z), G2M (n+,n-), G3M (b,g) and KM (1,3) in 142 Korean patients with SLE and 200 healthy controls to investigate the role of the allotypes in SLE. The allele frequency of G1M (z) was significantly higher in patients with SLE as compared to the healthy controls (94.6% vs. 84.3%, corrected P = 0.0004, OR 3.30, 95% CI 1.71-6.88). The frequency of G2M (n-) allele was also higher in patients with SLE (95.3% vs. 88.3%, corrected P = 0.008, OR = 2.71, 95% CI 1.38-5.72). Distribution of the tested allele frequencies for G3M and KM were not different between the patients and controls. In the respect of antibody production, there was increased genotype frequency of G1M (z/z) in anti-Sm(-) SLE (P = 0.023 vs. control, P = 0.042 vs. anti-Sm (+) SLE). In conclusion, particular genotypes at G1M (f,z) and G2M (n+,n-) loci are significantly associated with SLE. These immunoglobulin genes may contribute to the etiology of SLE and production of autoantibodies.
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Affiliation(s)
- E B Lee
- Department of Internal Medicine, Seoul National University College of Medicine, 28 Yungon-dong, Chongno-gu, Seoul, 110-744, South Korea
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Abstract
Cardiac sympathetic dysfunction was investigated using 123I-metaiodobenzylguanidine (MIBG) myocardial scintigraphy in 20 patients with drug induced parkinsonism (DIP). The mean heart to mediastinum ratio was significantly greater in patients with DIP than in those with Parkinson's disease (mean (SD): 2.07 (0.39) v 1.28 (0.15), p<0.001). MIBG uptake was not different between the DIP patients and controls. Two DIP patients whose MIBG uptake was significantly reduced showed persistent parkinsonism and responded dramatically to levodopa.
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Affiliation(s)
- P H Lee
- Department of Neurology, College of Medicine Ajou University, Woncheon-dong San 5, Paldal-ku, Suwon, Kyungki-do, 442-749, South Korea.
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Park MK, Lee KT, Choi YS, Shin DH, Lee JY, Lee JK, Paik SW, Ko YH, Rhee JC. [A case of benign schwannoma in the porta hepatis]. Korean J Gastroenterol 2006; 47:164-7. [PMID: 16498284] [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] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Schwannomas or neurilemmomas are uncommon tumors arising from schwann cells of neural sheath, which most frequently affect the extremities, trunk, head and neck area. Moreover, benign schwannoma in the porta hepatis is extremely rare. Approximately, 2 cases of benign schwannoma in the porta hepatis have been reported in the literatures. We report a case of benign schwannoma in the porta hepatis occurring in a 53-year-old woman who was asymptomatic and incidentally found to have a mass. Abdominal CT scan showed a 4.5 cm-sized low attenuating mass with septum-like enhancing solid portion at porta hepatis. Abdominal exploration revealed a yellowish, cystic and encapsulated mass attached to portal vein, common bile duct, liver and duodenal wall above the hepatoduodenal ligament. There has been no evidence of recurrence during 11 months of follow-up.
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Affiliation(s)
- Moon Kyung Park
- Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Gangnam-gu, Seoul, Korea
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Kim J, Lee E, Chang BS, Oh CS, Mun GH, Chung YH, Shin DH. The presence of megamitochondria in the ellipsoid of photoreceptor inner segment of the zebrafish retina. Anat Histol Embryol 2006; 34:339-42. [PMID: 16288603 DOI: 10.1111/j.1439-0264.2005.00612.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Although the megamitochondria (MM) were localized in various pathological conditions, normal retina of some mammalian species was reported to include MM for various physiological roles. However, it was not clearly confirmed whether the MM is present in the retina of lower vertebrate as well. In this study, we tried to show the presence of the MM in the zebrafish retina using electron microscopic technique. In all the photoreceptors including rods, cones and double cones of the zebrafish retina, MM were observed in the ellipsoid of inner segment. In the photoreceptor epllipsoid of the zebrafish retina, the mitochondria located in the central portion of the ellipsoid had a highly electron-dense matrix, which were accompanied by the mitochondria with electron-lucent matrix in the apical portion of the ellipsoid. The presence of MM was more clearly discernable in the rods, which were localized under the double cones. This finding is somewhat different from those observed in the previous studies because MM were localized in the inner segment of cones, but were not in those of rods in the case of mammalian retina. Although the exact physiological meaning for the presence of MM in some vertebrate species should be further studied, the present study could show that the MM in the ellipsoid of the retinal photoreceptors was not only restricted in some mammalian species.
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Affiliation(s)
- J Kim
- Department of Anatomy, Seoul National University College of Medicine, 28 Yongon-dong, Chongno-gu, Seoul 110-799, Korea
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Shin DH, Shin WS, Kim YH, Han MH, Choi SJ. Application of a combined process of moving-bed biofilm reactor (MBBR) and chemical coagulation for dyeing wastewater treatment. Water Sci Technol 2006; 54:181-9. [PMID: 17163056 DOI: 10.2166/wst.2006.863] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
A combined process consisted of a Moving-Bed Biofilm Reactor (MBBR) and chemical coagulation was investigated for textile wastewater treatment. The pilot scale MBBR system is composed of three MBBRs (anaerobic, aerobic-1 and aerobic-2 in series), each reactor was filled with 20% (v/v) of polyurethane-activated carbon (PU-AC) carrier for biological treatment followed by chemical coagulation with FeCl2. ln the MBBR process, 85% of COD and 70% of color (influent COD = 807.5 mg/L and color = 3,400 PtCo unit) were removed using relatively low MLSS concentration and short hydraulic retention time (HRT = 44 hr). The biologically treated dyeing wastewater was subjected to chemical coagulation. After coagulation with FeCl2, 95% of COD and 97% of color were removed overall. The combined process of MBBR and chemical coagulation has promising potential for dyeing wastewater treatment.
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Affiliation(s)
- D H Shin
- Department of Environmental Engineering, Kyungpook National University, Taegu, South Korea
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Chung MK, Lee SJ, Kim YB, Park SC, Shin DH, Kim SH, Kim JC. Evaluation of spermatogenesis and fertility in F1 male rats after in utero and neonatal exposure to extremely low frequency electromagnetic fields. Asian J Androl 2005; 7:189-94. [PMID: 15897976 DOI: 10.1111/j.1745-7262.2005.00007.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
AIM To determine whether in utero and neonatal exposure to a 60 Hz extremely low frequency electromagnetic field (EMF) results in spermatotoxicity and reproductive dysfunction in the F1 offspring of rats. METHODS Age-matched, pregnant Sprague-Dawley rats were exposed continuously (21 h/day) to a 60 Hz EMF at field strengths of 0 (sham control), 5, 83.3 or 500 microT from day 6 of gestation through to day 21 of lactation. The experimentally generated magnetic field was monitored continuously (uninterrupted monitoring over the period of the study) throughout the study. RESULTS No exposure-related changes were found in exposed or sham-exposed animals with respect to the anogenital distance, preputial separation, testis weight, testicular histology, sperm count, daily sperm production, sperm motility, sperm morphology and reproductive capacity of F1 offspring. CONCLUSION Exposure of Sprague-Dawley rats to a 60 Hz EMF at field strengths of up to 500 microT from day 6 of gestation to day 21 of lactation did not produce any detectable alterations in offspring spermatogenesis and fertility.
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Affiliation(s)
- M K Chung
- Reproductive Toxiology Division, Korea Institute of Toxicology, Korea Research Institute of Chemical Techonology, Daejeon 305-600, Korea
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Abstract
Parkinsonism associated with dural arteriovenous fistula (DAVF) has been described rarely; however, isolated parkinsonism as the presenting symptom of DAVF has not been reported. Here, we describe a patient with DAVF showing reversible isolated parkinsonism after embolization, which was well correlated with perfusion status of basal ganglia, suggesting that a perfusion defect was responsible for the pathogenesis of the parkinsonism in our DAVF patient.
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Affiliation(s)
- P H Lee
- Department of Neurology, College of Medicine, Ajou University, Wonchon-dong, Suwon, South Korea.
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Kim SJ, Lee HJ, Koo HG, Kim JW, Song JY, Kim MK, Shin DH, Jin SY, Hong MS, Park HJ, Yoon SH, Park HK, Chung JH. Impact of IL-1 receptor antagonist gene polymorphism on schizophrenia and bipolar disorder. Psychiatr Genet 2005; 14:165-7. [PMID: 15318032 DOI: 10.1097/00041444-200409000-00009] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
OBJECTIVES Variable levels of cytokines were observed in patients with schizophrenia and bipolar disorder, and an especially high level of interleukin-1 (IL-1) was detected in schizophrenia patients. It is known that IL-1 receptor antagonist (IL-1RA) binds to IL-1 receptors and inhibits the receptor binding of IL-1alpha and IL-1beta. METHODS In this study, the association between the variable number of tandem repeats polymorphism of the IL-1RA gene and schizophrenia (n=269) and bipolar disorder (n=83) was investigated. RESULTS The genotype distribution and allele frequency were significantly different between schizophrenic patients and the control group (P<0.05); however, there were no prominent differences between bipolar patients and the control group. The carriage rate for the IL1RN*2 allele was associated with higher risk of schizophrenia (odds ratio=2.24). CONCLUSIONS This study indicates that IL-1RA could be a candidate gene for susceptibility to schizophrenia.
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Affiliation(s)
- S J Kim
- School of Life Sciences and Biotechnology, Korea University, Seoul, Korea
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