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Choi JY, Jo YW, Lee SS, Kim WS, Oh HW, Kim CY, Yun EY, Kim JJ, Lee JM, Kim HJ, Kim HJ, Kim TH, Jung WT, Lee OJ, Kim RB. Outcomes of patients treated with Sengstaken-Blakemore tube for uncontrolled variceal hemorrhage. Korean J Intern Med 2018; 33:696-704. [PMID: 29117668 PMCID: PMC6030415 DOI: 10.3904/kjim.2016.339] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 02/08/2017] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND/AIMS The aim of this study was to investigate the mortality, bleeding control rate, and their associated predictors in patients treated with Sengstaken-Blakemore (SB) tube for uncontrolled variceal hemorrhage associated with hemodynamic instability or failure of endoscopic treatment. METHODS The clinical data of 66 consecutive patients with uncontrolled variceal hemorrhage treated with SB tube at Gyeongsang National University Hospital from October 2010 to October 2015 were retrospectively analyzed. RESULTS The overall success rate of initial hemostasis with SB tube was 75.8%, and the independent factors associated with hemostasis were non-intubated state before SB tube (odds ratio, 8.50; p = 0.007) and Child-Pugh score < 11 (odds ratio, 15.65; p = 0.022). Rebleeding rate after successful initial hemostasis with SB tube was 22.0%, and esophageal rupture occurred in 6.1%. Mortality within 30 days was 42.4%, and the related independent factors with mortality were failure of initial hemostasis with SB tube (hazard ratio, 6.24; p < 0.001) and endotracheal intubation before SB tube (hazard ratio, 2.81; p = 0.018). CONCLUSIONS Since the era of endoscopic band ligation, SB tube might be a beneficial option as a temporary salvage treatment for uncontrolled variceal hemorrhage. However, rescue therapy had a high incidence of fatal complication and rebleeding.
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Affiliation(s)
- Ja Yun Choi
- Department of Internal Medicine, Gyeongsang National University Hospital, Jinju, Korea
| | - Yun Won Jo
- Department of Internal Medicine, Gyeongsang National University Hospital, Jinju, Korea
| | - Sang Soo Lee
- Department of Internal Medicine, Gyeongsang National University Hospital, Jinju, Korea
- Department of Internal Medicine, Gyeongsang National University Changwon Hospital, Changwon, Korea
- Correspondence to Sang Soo Lee, M.D. Department of Internal Medicine, Gyeongsang National University Changwon Hospital, 11 Samjeongja-ro, Seongsan-gu, Changwon 51472, Korea Tel: +82-55-214-3711 Fax: +82-55-214-1036 E-mail:
| | - Wan Soo Kim
- Department of Internal Medicine, Gyeongsang National University Hospital, Jinju, Korea
- Department of Internal Medicine, Gyeongsang National University Changwon Hospital, Changwon, Korea
| | - Hye Won Oh
- Department of Internal Medicine, Gyeongsang National University Hospital, Jinju, Korea
| | - Cha Young Kim
- Department of Internal Medicine, Gyeongsang National University Hospital, Jinju, Korea
| | - Eun Young Yun
- Department of Internal Medicine, Gyeongsang National University Hospital, Jinju, Korea
| | - Jin Joo Kim
- Department of Internal Medicine, Gyeongsang National University Hospital, Jinju, Korea
- Department of Internal Medicine, Gyeongsang National University Changwon Hospital, Changwon, Korea
| | - Jae Min Lee
- Department of Internal Medicine, Gyeongsang National University Hospital, Jinju, Korea
- Department of Internal Medicine, Gyeongsang National University Changwon Hospital, Changwon, Korea
| | - Hong Jun Kim
- Department of Internal Medicine, Gyeongsang National University Hospital, Jinju, Korea
| | - Hyun Jin Kim
- Department of Internal Medicine, Gyeongsang National University Hospital, Jinju, Korea
- Department of Internal Medicine, Gyeongsang National University Changwon Hospital, Changwon, Korea
- Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
| | - Tae Hyo Kim
- Department of Internal Medicine, Gyeongsang National University Hospital, Jinju, Korea
- Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
| | - Woon Tae Jung
- Department of Internal Medicine, Gyeongsang National University Hospital, Jinju, Korea
- Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
| | - Ok Jae Lee
- Department of Internal Medicine, Gyeongsang National University Hospital, Jinju, Korea
- Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
| | - Rock Bum Kim
- Regional Cardiocerebrovascular Disease Center, Gyeongsang National University School of Medicine, Jinju, Korea
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Choe JC, Cha KS, Yun EY, Ahn J, Park JS, Lee HW, Oh JH, Kim JS, Choi JH, Park YH, Lee HC, Kim JH, Chun KJ, Hong TJ, Ahn Y, Jeong MH, Chae SC, Kim YJ. Reverse Left Ventricular Remodelling in ST-Elevation Myocardial Infarction Patients Undergoing Primary Percutaneous Coronary Intervention: Incidence, Predictors, and Impact on Outcome. Heart Lung Circ 2017; 27:154-164. [PMID: 28487063 DOI: 10.1016/j.hlc.2017.02.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Revised: 12/15/2016] [Accepted: 02/16/2017] [Indexed: 12/01/2022]
Abstract
BACKGROUD We investigated reverse left ventricular remodelling (r-LVR), defined as a reduction of >10% in left ventricular end-systolic volume (LVESV) during follow-up, in ST-elevation myocardial infarction (STEMI) patients undergoing primary percutaneous coronary intervention (PPCI). METHODS STEMI patients (n=1,237) undergoing PPCI with echocardiography at baseline and 6-month follow-up were classified into r-LVR (n=466) and no r-LVR groups (n=771). The primary outcome was composite major adverse cardiac events (MACE; all-cause death, myocardial infarction, any revascularisation). RESULTS r-LVR occurred in 466 patients (37.7%) and was associated with maximum troponin, door-to-balloon time, direct arrival to PPCI-capable hospital, coronary disease extent, initial left ventricular ejection fraction (LVEF), and LVESV. After propensity score (PS)-matching, initial LVEF and LVESV remained significant. During a median 403-day follow-up, 2-year MACE occurred in 166 patients (13.4%); its frequency was similar between groups (entire cohort: 13.5% vs. 13.4%, p=0.247; PS-matched: 11.8% vs. 11.8%, p=0.987). Kaplan-Meier estimates showed that MACE-free survival was comparable between groups (entire cohort: 86.5% vs. 86.6%, log rank p=0.939; PS-matched: 88.2% vs. 88.2%, log rank p=0.867). In Cox proportional hazard analysis, r-LVR was not associated with MACE (entire cohort: hazard ratio [HR] 1.018, 95% confidential interval [CI] 0.675-1.534, p=0.934; PS-matched: HR 1.001, 95% CI 0.578-1.731, p=0.999). CONCLUSION We identified independent predictors of r-LVR and showed that while r-LVR occurred in 38% of our patients, it was not associated with clinical outcomes.
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Affiliation(s)
| | - Kwang Soo Cha
- Pusan National University Hospital, Busan, South Korea.
| | - Eun Young Yun
- Pusan National University Hospital, Busan, South Korea
| | - Jinhee Ahn
- Pusan National University Hospital, Busan, South Korea
| | - Jin Sup Park
- Pusan National University Hospital, Busan, South Korea
| | - Hye Won Lee
- Pusan National University Hospital, Busan, South Korea
| | - Jun-Hyok Oh
- Pusan National University Hospital, Busan, South Korea
| | - Jeong Su Kim
- Pusan National University Yangsan Hospital, Yangsan, South Korea
| | | | - Yong Hyun Park
- Pusan National University Yangsan Hospital, Yangsan, South Korea
| | - Han Cheol Lee
- Pusan National University Hospital, Busan, South Korea
| | - June Hong Kim
- Pusan National University Yangsan Hospital, Yangsan, South Korea
| | - Kook Jin Chun
- Pusan National University Yangsan Hospital, Yangsan, South Korea
| | | | - Youngkeun Ahn
- Chonnam National University Hospital, Gwangju, South Korea
| | - Myung Ho Jeong
- Chonnam National University Hospital, Gwangju, South Korea
| | | | - Young Jo Kim
- Yeungnam University Hospital, Daegu, South Korea
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Yun EY, Kim TH, Lee SS, Kim HJ, Kim HJ, Jung WT, Lee OJ, Song DH. [A Case of Composite Hepatocellular Carcinoma and Neuroendocrine Carcinoma in a Patient with Liver Cirrhosis Caused by Chronic Hepatitis B]. Korean J Gastroenterol 2017; 68:109-13. [PMID: 27554219 DOI: 10.4166/kjg.2016.68.2.109] [Citation(s) in RCA: 7] [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] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Primary hepatic neuroendocrine carcinoma (PHNEC) is rare and its origin is not clearly understood. The coexistence of PHNEC and hepaotcellular carcinoma has been reported in only a few cases. We report a rare case of combined PHNEC and hepaotcellular carcinoma in a patient with liver cirrhosis caused by chronic hepatitis B that resulted in aggressive behavior and poor prognosis.
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Affiliation(s)
- Eun Young Yun
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Tae Hyo Kim
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea.,Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Sang Soo Lee
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Hong Jun Kim
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Hyun Jin Kim
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea.,Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Woon Tae Jung
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea.,Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Ok Jae Lee
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea.,Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Dae Hyun Song
- Department of Pathology, Gyeongsang National University School of Medicine, Jinju, Korea
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You HS, Hong JW, Yun EY, Kim JJ, Lee JM, Lee SS, Kim HJ, Ha CY, Kim HJ, Kim TH, Jung WT, Lee OJ. [Primary Non-ampullary Duodenal Adenocarcinoma: A Single-center Experience for 15 Years]. Korean J Gastroenterol 2016; 66:194-201. [PMID: 26493504 DOI: 10.4166/kjg.2015.66.4.194] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND/AIMS Primary non-ampullary duodenal adenocarcinomas (PNADAs) comprise <0.3% of gastrointestinal malignancies. The rarity of PNADA and poorly defined natural history often leads to a delayed correct diagnosis. This study was conducted to evaluate the clinical characteristics of PNADA and to identify its prognostic factors. METHODS Data were collected by retrospectively reviewing the medical records of patients with PNADA managed at Gyeongsang National University Hospital from January 2000 to December 2014. Demographic, clinical, endoscopic, and pathological variables were investigated, and factors related to survival were analyzed. RESULTS Twenty-seven patients with PNADA were identified, and their median age was 64.9±13.6 years with 16 (59.3%) being male. The majority of patients (25/27, 92.6%) were initially diagnosed during upper endoscopy with biopsies. The tumor was located on the 1st or 2nd portion of duodenum in 92.6% (25/27) of patients. At the time of diagnosis, 85.2% (23/27) had advanced diseases (stage III or IV); 48.2% (13/27) had distant metastasis. Median survival time was 12 months (1-93 months). One and 3-year survival rates were 48.1% and 33.3%, respectively. On multivariable analysis, total bilirubin ≥2 mg/dL (OR, 85.28; 95% CI, 3.77-1,938.79; p=0.005) and distant metastasis (OR, 26.74; 95% CI, 3.13-2,328.14; p=0.003) at the time of diagnosis were independent poor prognostic factors. CONCLUSIONS The majority of patients were diagnosed at an advanced stage. Presence of distant metastasis was independent prognostic factor of PNADA together with elevated total bilirubin.
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Affiliation(s)
- Hyun Seon You
- Department of Internal Medicine, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Jeong Woo Hong
- Department of Internal Medicine, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Eun Young Yun
- Department of Internal Medicine, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Jin Joo Kim
- Department of Internal Medicine, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Jae Min Lee
- Department of Internal Medicine, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Sang Soo Lee
- Department of Internal Medicine, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, Korea.,Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
| | - Hong Jun Kim
- Department of Internal Medicine, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, Korea.,Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
| | - Chang Yoon Ha
- Department of Internal Medicine, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, Korea.,Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
| | - Hyun Jin Kim
- Department of Internal Medicine, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, Korea.,Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
| | - Tae Hyo Kim
- Department of Internal Medicine, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, Korea.,Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
| | - Woon Tae Jung
- Department of Internal Medicine, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, Korea.,Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
| | - Ok Jae Lee
- Department of Internal Medicine, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, Korea.,Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
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Kim BW, Cha KS, Park MJ, Choi JH, Yun EY, Park JS, Lee HW, Oh JH, Kim JS, Choi JH, Park YH, Lee HC, Kim JH, Chun KJ, Hong TJ, Ahn Y, Jeong MH. The impact of transferring patients with ST-segment elevation myocardial infarction to percutaneous coronary intervention-capable hospitals on clinical outcomes. Cardiol J 2016; 23:289-95. [PMID: 26779970 DOI: 10.5603/cj.a2016.0003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2015] [Accepted: 12/07/2015] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Primary percutaneous coronary intervention (PCI) is recommended for ST-segment elevation myocardial infarction (STEMI) patients even when the patient must be transported to a PCI-capable hospital. This study aimed to evaluate the long-term clinical outcomes of STEMI patients who were transferred for primary PCI compared to patients who arrived directly to PCI-capable hospitals. METHODS A total of 3,576 STEMI patients with less than 12 h of symptom onset-to-door time from the Korea Acute Myocardial Infarction Registry were divided into transfer (n = 2,176) and direct-arrival (n = 1,400) groups according to their status. The primary outcome was the composite of major adverse cardiac event (MACE), defined as death, non-fatal myocardial infarction, and revascularization at 1 year. RESULTS In the transfer vs. the direct-arrival group, the median symptom onset-to-firstmedical contact time was significantly shorter (60 vs. 80 min, p < 0.001), but the median symptom onset-to-door time was significantly longer (194 vs. 90 min, p < 0.001). The median door-to-balloon time was significantly shorter in the transfer group vs. the direct-arrival group (75 vs. 91 min, p < 0.001). Total death and the composite of MACE were not significantly different during hospitalization (5.1 vs. 3.9%, p = 0.980; 5.4 vs. 4.8%, p = 0.435, respectively) and at 1-year (8.2 vs. 6.6%, p = 0.075; 13.7 vs. 13.9%, p = 0.922, respectively). CONCLUSIONS Transferring STEMI patients to PCI-capable hospitals with a time delay did not affect clinical outcomes after 1 year. This study suggests that inter-hospital transfer should be encouraged even with delay for STEMI patients who require primary PCI in areas with a similar geographic accessibility.
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Affiliation(s)
| | - Kwang Soo Cha
- Pusan National University Hospital, Busan, South Korea.
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Ko JK, Kim HS, Choi HJ, Lee TH, Yun EY, Choi CH. Endovascular Treatment of Ruptured Pericallosal Artery Aneurysms. J Korean Neurosurg Soc 2015; 58:197-204. [PMID: 26539261 PMCID: PMC4630349 DOI: 10.3340/jkns.2015.58.3.197] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2015] [Revised: 04/08/2015] [Accepted: 04/13/2015] [Indexed: 11/27/2022] Open
Abstract
Objective Aneurysms arising from the pericallosal artery (PA) are uncommon and challenging to treat. The aim of this study was to report our experiences of the endovascular treatment of ruptured PA aneurysms. Methods From September 2003 to December 2013, 30 ruptured PA aneurysms in 30 patients were treated at our institution via an endovascular approach. Procedural data, clinical and angiographic results were retrospectively reviewed. Results Regarding immediate angiographic control, complete occlusion was achieved in 21 (70.0%) patients and near-complete occlusion in 9 (30.0%). Eight procedure-related complications occurred, including intraprocedural rupture and early rebleeding in three each, and thromboembolic event in two. At last follow-up, 18 patients were independent with a modified Rankin Scale (mRS) score of 0-2, and the other 12 were either dependent or had expired (mRS score, 3-6). Adjacent hematoma was found to be associated with an increased risk of poor clinical outcome. Seventeen of 23 surviving patients underwent follow-up conventional angiography (mean, 16.5 months). Results showed stable occlusion in 14 (82.4%), minor recanalization in two (11.8%), and major recanalization, which required recoiling, in one (5.9%). Conclusion Our experiences demonstrate that endovascular treatment for a ruptured PA aneurysms is both feasible and effective. However, periprocedural rebleedings were found to occur far more often (20.0%) than is generally suspected and to be associated with preoperative contrast retention. Analysis showed existing adjacent hematoma is predictive of a poor clinical outcome.
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Affiliation(s)
- Jun Kyeung Ko
- Department of Neurosurgery, Medical Research Institute, Pusan National University Hospital, Busan, Korea
| | - Hwan Soo Kim
- Department of Neurosurgery, Medical Research Institute, Pusan National University Hospital, Busan, Korea
| | - Hyuk Jin Choi
- Department of Neurosurgery, Medical Research Institute, Pusan National University Hospital, Busan, Korea
| | - Tae Hong Lee
- Department of Diagnostic Radiology, Medical Research Institute, Pusan National University Hospital, Busan, Korea
| | - Eun Young Yun
- Department of Biostatistics, Medical Research Institute, Pusan National University Hospital, Busan, Korea
| | - Chang Hwa Choi
- Department of Neurosurgery, Medical Research Institute, Pusan National University Hospital, Busan, Korea
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Seol YM, Kim HJ, Choi YJ, Lee EM, Kim YS, Oh SY, Koh SJ, Baek JH, Lee WS, Joo YD, Lee HG, Yun EY, Chung JS. Transdermal granisetron versus palonosetron for prevention of chemotherapy-induced nausea and vomiting following moderately emetogenic chemotherapy: a multicenter, randomized, open-label, cross-over, active-controlled, and phase IV study. Support Care Cancer 2015; 24:945-952. [PMID: 26265119 DOI: 10.1007/s00520-015-2865-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Accepted: 07/27/2015] [Indexed: 11/26/2022]
Abstract
BACKGROUND Palonosetron is the second-generation 5-hydroxytryptamine 3 receptor antagonist (5-HT3RA) that has shown better efficacy than the first-generation 5-HT3RA for prevention of chemotherapy-induced nausea and vomiting (CINV) in patients receiving moderately emetogenic chemotherapy (MEC). Granisetron transdermal delivery system (GTDS), a novel transdermal formulation, was developed to deliver granisetron continuously over 7 days. This study compared the efficacy and tolerability of the GTDS to palonosetron for the control of CINV following MEC. MATERIAL AND METHOD A total of 196 patients were randomized to GP or PG group. In this multicenter, randomized, open-label, cross-over, active-controlled, Phase IV study, GP group was assigned to receive transdermal granisetron (one GTDS patch, 7 days) in the first chemotherapy cycle, palonosetron (iv 0.25 mg/day, 1 days) in the second chemotherapy cycle before receiving MEC, and PG group was assigned to receive palonosetron in the first cycle and GTDS in the second cycle. Primary endpoint was the percentage of chemotherapy cycles achieving complete response (CR; defined as no emetic episodes and no rescue medication use) during the acute phase (0-24 h in post-chemotherapy; non-inferiority comparison with palonosetron). RESULTS Total 333 cycles (165 in GTDS and 168 in palonosetron) were included in the per protocol analysis. The GTDS cycles showed non-inferiority to palonosetron cycles during the acute phase: CR was achieved by 124 (75.2 %) patients in the GTDS cycles and 134 (79.8 %) patients in the palonosetron cycles (treatment difference, -4.6 %; 95 % confidence interval, -13.6-4.4). There was no significant difference in CR rate during acute phase after the end of the first and second chemotherapy cycle between GP and PG group (p = 0.405, p = 0.074). Patients' satisfaction, assessed using Functional Living Index-Emesis (FLI-E), GTDS cycle were higher than those of palonosetron cycle in GP group (FLI-E score; median 1549.5 in GTDS cycle, median 1670.0 in palonosetron cycle). Both treatments were well tolerated and safe. CONCLUSION Transdermal granisetron is a good alternative therapeutic option to palonosetron for preventing CINV after MEC.
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Affiliation(s)
- Young Mi Seol
- Division of Hemato-Oncology, Department of Internal Medicine, Pusan National University Hospital Medical Research Institute, 1-10 Ami-Dong, Seo-Gu, Busan, 602-739, South Korea
| | - Hyo Jeong Kim
- Division of Hemato-Oncology, Department of Internal Medicine, Pusan National University Hospital Medical Research Institute, 1-10 Ami-Dong, Seo-Gu, Busan, 602-739, South Korea
| | - Young Jin Choi
- Division of Hemato-Oncology, Department of Internal Medicine, Pusan National University Hospital Medical Research Institute, 1-10 Ami-Dong, Seo-Gu, Busan, 602-739, South Korea
| | - Eun Mi Lee
- Division of Hemato-Oncology, Department of Internal Medicine, Kosin University Gospel Hospital, Busan, South Korea
| | - Yang Soo Kim
- Division of Hemato-Oncology, Department of Internal Medicine, Kosin University Gospel Hospital, Busan, South Korea
| | - Sung Yong Oh
- Division of Hemato-Oncology, Department of Internal Medicine, Dong-A University Hospital, Dong-A University College of Medicine, Busan, South Korea
| | - Su Jin Koh
- Division of Hemato-Oncology, Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, South Korea
| | - Jin Ho Baek
- Division of Hemato-Oncology, Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, South Korea
| | - Won Sik Lee
- Division of Hemato-Oncology, Department of Internal Medicine, Inje University Paik Hospital, Inje University College of Medicine, Busan, South Korea
| | - Young Don Joo
- Division of Hemato-Oncology, Department of Internal Medicine, Inje University Haeundae Paik Hospital, Inje University College of Medicine, Busan, South Korea
| | - Hyun Gi Lee
- Department of Biostatistician, Pusan National University Hospital Medical Research Institute, Busan, South Korea
| | - Eun Young Yun
- Department of Biostatistician, Pusan National University Hospital Medical Research Institute, Busan, South Korea
| | - Joo Seop Chung
- Division of Hemato-Oncology, Department of Internal Medicine, Pusan National University Hospital Medical Research Institute, 1-10 Ami-Dong, Seo-Gu, Busan, 602-739, South Korea.
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Ahn MY, Hwang JS, Yun EY, Kim MJ, Park KK. Anti-aging Effect and Gene Expression Profiling of Aged Rats Treated with G. bimaculatus Extract. Toxicol Res 2015; 31:173-80. [PMID: 26191384 PMCID: PMC4505348 DOI: 10.5487/tr.2015.31.2.173] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Revised: 05/13/2015] [Accepted: 06/14/2015] [Indexed: 01/18/2023] Open
Abstract
Extract from Gryllus bimaculatus crickets inhibits oxidation at the DNA level, with reduced production of 8-hydroxy-2'-deoxyguanosine (8-OHdG). Microarray analyses were performed with a rat 28K cDNA clone set array to identify the gene expression profiles of aged (10 months old) Wistar Kyoto rats treated for one month with 100 mg/kg G. bimaculatus ethanol extract to assess the effects. The extract produced a meaningful anti-edema effect, evident by the inhibition of creatinine phosphokinase activity. The weights of abdominal and ovarian adipose tissues were reduced and the proportion of unsaturated fatty acids in adipose tissues was increased in an extract dose-dependent manner. Compared with untreated control rats, rats treated with the extract displayed the upregulation of 1053 genes including Fas (tumor necrosis factor receptor superfamily, member 6), Amigo3 (adhesion molecule with an immunoglobulin-like domain), Reticulon 4, 3-hydroxy-3-methylglutaryl-coenzyme (Hmgcr; a reductase), related anti-fatigue (enzyme metabolism), and Rtn antioxidant, and the downregulation of 73 genes including Ugt2b (UDP glycosyltransferase 2 family), Early growth response 1, and Glycoprotein m6a. Data suggest that G. bimaculatus extract may have value in lessening the effects of aging, resulting in a differential gene expression pattern indicative of a marked stress response and lower expression of metabolic and biosynthetic genes.
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Affiliation(s)
- Mi Young Ahn
- Department of Agricultural Biology, National Academy of Agricultural Science, RDA, Wanju-Gun, Korea
| | - Jae Sam Hwang
- Department of Agricultural Biology, National Academy of Agricultural Science, RDA, Wanju-Gun, Korea
| | - Eun Young Yun
- Department of Agricultural Biology, National Academy of Agricultural Science, RDA, Wanju-Gun, Korea
| | - Min-Ji Kim
- Department of Agricultural Biology, National Academy of Agricultural Science, RDA, Wanju-Gun, Korea
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Kim SK, Ahn YH, Yoon JA, Shin MJ, Chang JH, Cho JS, Lee MK, Kim MH, Yun EY, Jeong JH, Shin YB. Efficacy of Systemic Postoperative Pulmonary Rehabilitation After Lung Resection Surgery. Ann Rehabil Med 2015; 39:366-73. [PMID: 26161342 PMCID: PMC4496507 DOI: 10.5535/arm.2015.39.3.366] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Accepted: 10/10/2014] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVE To investigate the efficacy of systemic pulmonary rehabilitation (PR) after lung resection in patients with lung cancer. METHODS Forty-one patients undergoing lung resection were enrolled and classified into the experimental (n=31) and control groups (n=10). The experimental group underwent post-operative systemic PR which was conducted 30 min/day on every hospitalization day by an expert physical therapist. The control group received the same education about the PR exercises and were encouraged to self-exercise without supervision of the physical therapist. The PR group was taught a self-PR program and feedback was provided regularly until 6 months after surgery. We conducted pulmonary function testing (PFT) and used a visual analog scale (VAS) to evaluate pain, and the modified Borg Dyspnea Scale (mBS) to measure perceived respiratory exertion shortly before and 2 weeks, 1, 3, and 6 months after surgery. RESULTS A significant improvement on the VAS was observed in patients who received systemic PR >3 months. Significant improvements in forced vital capacity (FVC) and mBS score were observed in patients who received systemic PR >6 months (p<0.05). Other PFT results were not different compared with those in the control group. CONCLUSION Patients who received lung resection suffered a significant decline in functional reserve and increases in pain and subjective dyspnea deteriorating quality of life (QoL). Systemic PR supervised by a therapist helped improve reduced pulmonary FVC and QoL and minimized discomfort during the postoperative periods in patients who underwent lung resection.
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Affiliation(s)
- Soo Koun Kim
- Department of Rehabilitation Medicine, Pusan National University School of Medicine, Busan, Korea. ; Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
| | - Young Hyun Ahn
- Department of Rehabilitation Medicine, Pusan National University School of Medicine, Busan, Korea. ; Department of Rehabilitation Medicine, Medwill Hospital, Busan, Korea
| | - Jin A Yoon
- Department of Rehabilitation Medicine, Pusan National University School of Medicine, Busan, Korea. ; Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
| | - Myung Jun Shin
- Department of Rehabilitation Medicine, Pusan National University School of Medicine, Busan, Korea. ; Biomedical Research Institute, Pusan National University Hospital, Busan, Korea. ; Regional Center for Respiratory Diseases, Pusan National University Hospital, Busan, Korea
| | - Jae Hyeok Chang
- Department of Rehabilitation Medicine, Pusan National University School of Medicine, Busan, Korea. ; Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
| | - Jeong Su Cho
- Biomedical Research Institute, Pusan National University Hospital, Busan, Korea. ; Regional Center for Respiratory Diseases, Pusan National University Hospital, Busan, Korea. ; Department of Thoracic and Cardiovascular Surgery, Pusan National University School of Medicine, Busan, Korea
| | - Min Ki Lee
- Biomedical Research Institute, Pusan National University Hospital, Busan, Korea. ; Regional Center for Respiratory Diseases, Pusan National University Hospital, Busan, Korea. ; Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea
| | - Mi Hyun Kim
- Biomedical Research Institute, Pusan National University Hospital, Busan, Korea. ; Regional Center for Respiratory Diseases, Pusan National University Hospital, Busan, Korea. ; Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea
| | - Eun Young Yun
- Department of Biostatistics, Clinical Trial Center, Pusan National University Hospital, Busan, Korea
| | - Jong-Hwa Jeong
- Department of Rehabilitation Medicine, Pusan National University School of Medicine, Busan, Korea
| | - Yong Beom Shin
- Department of Rehabilitation Medicine, Pusan National University School of Medicine, Busan, Korea. ; Biomedical Research Institute, Pusan National University Hospital, Busan, Korea. ; Regional Center for Respiratory Diseases, Pusan National University Hospital, Busan, Korea
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10
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Ahn MY, Kim SJ, Kim N, Hwang JS, Yun EY. Immune modulation of glycosaminoglycan derived from P. lewisi in TNF-α stimulated cells. Arch Pharm Res 2015; 38:1983-91. [DOI: 10.1007/s12272-015-0616-5] [Citation(s) in RCA: 4] [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: 07/27/2014] [Accepted: 05/05/2015] [Indexed: 01/07/2023]
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11
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Affiliation(s)
- Mi Young Ahn
- Agricultural BiologyNational Academy of Agricultural Science, RDA Wanju JunbukRepublic of Korea
| | - Jae Sam Hwang
- Agricultural BiologyNational Academy of Agricultural Science, RDA Wanju JunbukRepublic of Korea
| | - Eun Young Yun
- Agricultural BiologyNational Academy of Agricultural Science, RDA Wanju JunbukRepublic of Korea
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12
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Ahn MY, Kim SJ, Han JW, Yoon HJ, Hwang JS, Yun EY. Immune Modulation of B. terrestris Worker (a Type of Bumblebee), Extract on CFA-induced Paw Edema in Rats. Toxicol Res 2014; 30:277-82. [PMID: 25584147 PMCID: PMC4289928 DOI: 10.5487/tr.2014.30.4.277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Revised: 11/03/2014] [Accepted: 11/19/2014] [Indexed: 11/27/2022] Open
Abstract
To develop a composition for enhancing immunity, based on alcohol extracts of the bumblebee as an active ingredient, bumblebee ethanol extracts were evaluated for their protective effect in chronic models of inflammation, adjuvant induced rat arthritis. B. terrestris worker extract (SDIEX) and, B. hypocrita sapporoensis lava an pupa extract (SPDYBEX), significantly decreased paw edema in arthritic rats, at a dose 100 mg/kg, respectively. The cytokine levels related inflammation of COX-2, sPLA2, VEGF, and TNF-α, were decreased, compared to positive control, indomethacin (5 mg/kg). Histopathological data demonstrated decreases inflammatory activity, hind paw edema, and repaired hyaline articular cartilage in DRG over a 2 wk administration. HPLC and GC-MS analysis of SDIEX and SPDYBEX revealed the presence of cantharidin.
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Affiliation(s)
- Mi Young Ahn
- Department of Agricultural Biology, National Academy of Agricultural Science, RDA, Wanju, Korea
| | - Soon Ja Kim
- Department of Agricultural Biology, National Academy of Agricultural Science, RDA, Wanju, Korea
| | - Jea Woong Han
- Department of Agricultural Biology, National Academy of Agricultural Science, RDA, Wanju, Korea
| | - Hyung Joo Yoon
- Department of Agricultural Biology, National Academy of Agricultural Science, RDA, Wanju, Korea
| | - Jae Sam Hwang
- Department of Agricultural Biology, National Academy of Agricultural Science, RDA, Wanju, Korea
| | - Eun Young Yun
- Department of Agricultural Biology, National Academy of Agricultural Science, RDA, Wanju, Korea
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13
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Kim SW, Yun EY, Choi KH, Kim SR, Park SW, Kang SW, Goo TW. Expression of the blue fluorescent protein in fibroin H-chain of transgenic silkworm. ACTA ACUST UNITED AC 2014. [DOI: 10.7852/jses.2014.52.1.25] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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14
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Ko JK, Cha SH, Choi BK, Lee JI, Yun EY, Choi CH. Hemorrhage rates associated with two methods of ventriculostomy: external ventricular drainage vs. ventriculoperitoneal shunt procedure. Neurol Med Chir (Tokyo) 2014; 54:545-51. [PMID: 24522005 PMCID: PMC4533471 DOI: 10.2176/nmc.oa.2013-0178] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Cerebrospinal fluid (CSF) diversion is an essential component of neurosurgical care, but the rates and significance of hemorrhage associated with external ventricular drainage (EVD) and ventriculoperitoneal (VP) shunt procedures have not been well quantified. In this retrospective study, the authors examined the frequencies of hemorrhagic complications associated with EVD and VP shunt procedures, and attempted to identify associated risk factors. The treatment records of 370 EVDs in 276 patients and 102 VP shunts in 96 patients performed between 2008 and 2010 were retrospectively reviewed. Post-insertion computed tomographic (CT) scans were analyzed for any new hemorrhage related to the ventricular catheter. The effects of diagnosis at admission, endovascular treatment, anti-platelet medication, and a concurrent craniotomy operation were included in the analysis conducted to identify risk factors of ventricular catheter-related hemorrhage. Hemorrhage following EVD was detected on CT scans in 76 (20.5%) of the 370 cases. However, symptomatic hemorrhage occurred in only 5 cases (1.4% of all EVDs). VP shunt was associated with a higher incidence of ventricular catheter-related hemorrhage than EVD (hemorrhage rate: 43.1%) and the rate of detectable neurological change was 2.9%. Multivariate logistic-regression analysis of risk factors of EVD-related hemorrhage identified preoperative anti-platelet medication as the only significant factor (odds ratio, 3.583 [95% confidence interval, 1.353 to 9.486]; p = 0.010). Ventriculostomy-related hemorrhagic complications were more common than anticipated, especially for the VP shunt procedure. However, such hemorrhages are rarely large, rarely the cause of neurological deterioration, and rarely require surgical removal. Preoperative anti-platelet medication appears to affect EVD-related hemorrhage development.
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Affiliation(s)
- Jun Kyeung Ko
- Department of Neurosurgery, Medical Research Institute, Pusan National University Hospital
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Ahn MY, Jee SD, Hwang JS, Yun EY, Ahn KS, Kim YS. Anti-inflammatory Effect of Isaria sinclairii Glycosaminoglycan in an Adjuvant-treated Arthritis Rat Model. Toxicol Res 2014; 29:195-201. [PMID: 24386520 PMCID: PMC3877999 DOI: 10.5487/tr.2013.29.3.195] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Revised: 09/11/2013] [Accepted: 09/24/2013] [Indexed: 11/20/2022] Open
Abstract
The anti-inflammatory effects of glycosaminoglycan (GAG) derived from Isaria sinclairii (IS) and of IS extracts were investigated in a complete Freund’s adjuvant (CFA)-treated chronic arthritis rat model. Groups of rats were treated orally with 30 mg/kg one of the following: [1] saline control, extracts of [2] water-IS, [3] methanol-IS, [4] butanol-IS, [5] ethyl acetate-IS, or [6] Indomethacin® as the positive control for a period of two weeks. The anti-paw edema effects of the individual extracts were in the following order: water-IS ex. > methanol ex. > butanol ex. > ethyl acetate ex. The water/methanol extract from I. sinclairii remarkably inhibited UV-mediated upregulation of NF-κB activity in transfected HaCaT cells. GAG as a water-soluble alcohol precipitated fraction also produced a noticeable anti-edema effect. This GAG also inhibited the pro-inflammatory cytokine levels of prostaglandin E2-stimulated lipopolysaccharide in LAW 264.7 cells, cytokine TNF-α production in splenocytes, and atherogenesis cytokine levels of vascular endothelial growth factor (VEGF) production in HUVEC cells in a dose-dependent manner. In the histological analysis, the LV dorsal root ganglion, including the articular cartilage, and linked to the paw-treated IS GAG, was repaired against CFA-induced cartilage destruction. Combined treatment with Indomethacin® (5 mg/kg) and IS GAG (10 mg/kg) also more effectively inhibited CFA-induced paw edema at 3 hr, 24 hr, and 48 hr to levels comparable to the anti-inflammatory drug, indomethacin. Thus, the IS GAG described here holds great promise as an anti-inflammatory drug in the future.
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Affiliation(s)
- Mi Young Ahn
- Department of Agricultural Biology, National Academy of Agricultural Science, RDA, Suwon, Korea
| | - Sang Duck Jee
- Department of Agricultural Biology, National Academy of Agricultural Science, RDA, Suwon, Korea
| | - Jae Sam Hwang
- Department of Agricultural Biology, National Academy of Agricultural Science, RDA, Suwon, Korea
| | - Eun Young Yun
- Department of Agricultural Biology, National Academy of Agricultural Science, RDA, Suwon, Korea
| | - Kwang Seok Ahn
- College of Oriental Medicine, Institute of Oriental Medicine, Kyunghee University, Seoul, Korea
| | - Yeong Shik Kim
- College of Pharmacy, Seoul National University, Seoul, Korea
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Ahn MY, Han JW, Hwang JS, Yun EY, Lee BM. Anti-inflammatory effect of glycosaminoglycan derived from Gryllus bimaculatus (a type of cricket, insect) on adjuvant-treated chronic arthritis rat model. J Toxicol Environ Health A 2014; 77:1332-1345. [PMID: 25343284 DOI: 10.1080/15287394.2014.951591] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Anti-inflammatory effects of glycosaminoglycan (GAG) derived from cricket (Gryllus bimaculatus, Gb) were investigated in a complete Freund's adjuvant (CFA)-treated chronic arthritic rat model. This GAG produced a significant anti-edema effect as evidenced by inhibition of C-reactive protein (CRP) and rheumatoid factor, and interfered with atherogenesis by reducing proinflammatory cytokine levels of (1) vascular endothelial growth factor (VEGF) production in human umbilical vein endothelial cells (HUVEC), (2) interleukin-6, (3) prostaglandin E2-stimulated lipopolysaccharide in RAW 264.7 cells, and (4) tumor necrosis factor (TNF)-α production in normal splenocytes, in a dose-dependent manner. This GAG was also found to induce nitric oxide (NO) production in HUVEC cells and elevated endothelial nitric oxide synthase (eNOS) activity levels. Histological findings demonstrated the fifth lumbar vertebrae (LV) dorsal root ganglion, which was linked to the paw treated with Gb GAG, was repaired against CFA-induced cartilage destruction. Further, combined indomethacin (5 mg/kg)-Gb GAG (10 mg/kg) inhibited more effectively CFA-induced paw edema at 3 h and 2 or 3 d after treatment to levels comparable to only the anti-inflammatory drug indomethacin. Ultraviolet (UV)-irritated skin inflammation also downregulated nuclear factor κB (NFκB) activity in transfected HaCaT cells. Data suggest that the anti-inflammatory effects of GAG obtained from cricket (Gb) may be useful for treatment of inflammatory diseases including chronic arthritis.
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Affiliation(s)
- Mi Young Ahn
- a Department of Agricultural Biology , National Academy of Agricultural Science, RDA , Suwon , South Korea
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Ko JK, Nam KH, Choi CH, Lee THL, Yun EY, Lee SW. The efficacy of superficial temporal artery-middle cerebral artery bypass in treatment of athero-occlusive cerebrovascular disease: a single center experience. Turk Neurosurg 2014. [DOI: 10.5137/1019-5149.jtn.9608-13.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Kim SW, Yun EY, Choi KH, Kim SR, Park SW, Kang SW, Goo TW. Production of fluorescent green silk using fibroin H-chain expression system. ACTA ACUST UNITED AC 2013. [DOI: 10.7852/jses.2013.51.2.153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Ahn MY, Seo YJ, Ji SD, Han JW, Hwang JS, Yun EY. Fatty Acid Composition of Adipose Tissues in Obese Mice and SD Rats Fed with Isaria sinclairii Powder. Toxicol Res 2013; 26:185-92. [PMID: 24278523 PMCID: PMC3834485 DOI: 10.5487/tr.2010.26.3.185] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2010] [Revised: 08/11/2010] [Accepted: 08/15/2010] [Indexed: 12/12/2022] Open
Abstract
Isaria sinclairii (Cicada Dongchunghacho) was studied as a potential crude natural food in powdered form. The role of tissue fatty acids in relation to the anti-obesity effects of I. sinclairii (IS) was examined by feeding the powder to SD rats ad libitum at 0, 1.25, 2.5, 5 and 10% (calculated about 8 g/kg) of the feed for a period of 3 months and 6 months. The fatty acid composition profile as indicated GC-MS, showed significantly slight dose-dependent increases in the levels of unsaturated fatty acids, particularly, arachidonic acid (C20: 4n6) , oleic acid, linoleic acid, eicosadienoic acid, eicosapentaenoic acid (EPA) (C20: 5) concentration in the the ad libitum IS-fed groups compared to the control group in SD abdominal fat over 6 month period. Over viewing of the SD and Ob mice treated Isaria sinclairii powder; there were increases in the single (mono) unsaturated fatty acids ratio but decreases in polyunsaturated fatty acid. In IS-fed groups in proportion to the treatment period, this Dongchunghacho also induced an increase in the level of same result of unsaturated fatty acid in C57BL/6 obese (ob/ob) mice over a 6-month period treatment compared to those given 10% dry mulberry leaf powder (ML) or silkworm powder mixed with the standard diet.
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Affiliation(s)
- Mi Young Ahn
- Department of Agricultural Biology, National Academy of Agricultural Science, RDA, Suwon 441-100, Korea
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Ahn MY, Jung YS, Jee SD, Han JW, Hwang JS, Yun EY, Lee BM. Blood-pressure-lowering effect of glycosaminoglycan derived from Isaria sinclairii in spontaneously hypertensive rats. J Toxicol Environ Health A 2013; 76:391-399. [PMID: 23557237 DOI: 10.1080/15287394.2013.765370] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The antihypertensive effects of both extracts and glycosaminoglycan derived from Isaria sinclairii (IS) were investigated in a spontaneously hypertensive rat (SHR) model. Groups of rats were treated orally with 30 mg/kg each of: (1) saline control or extracts of (2) water-IS (3) methanol-IS, (4) butanol-IS, (5) ethyl acetate-IS, or (6) captopril as positive control. The 30-mg/kg dose was administered with a standard diet every day for a period of 2 wk. The antihypertensive effects of the individual extracts were in the following order: methanol > water > ethyl acetate > butanol. Glycosaminoglycan (GAG) obtained from IS as a water-soluble alcohol precipitation fraction produced an antihypertensive effect. One month following administration of GAG derived from IS to SHR animals there was a marked decrease in systolic blood pressure from 183 to 105 mm Hg and reduced diastolic blood pressure from 148 to 80 mm Hg compared to untreated control SHR rats. It was found that GAG produced an antihypertensive effect, which was more effective than the positive control captopril. In the SHR animal model a fall of 19% in body weight was observed in the group that received GAG. Data thus indicate that GAG derived from I. sinclairii may be a potent, naturally occurring antihypertensive agent.
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Affiliation(s)
- Mi Young Ahn
- Department of Agricultural Biology, National Academy of Agricultural Science, RDA, Suwon, South Korea.
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Kim HS, Kim TH, Yun EY, Ham HS, Kim HJ, Jeong CY, Kim HJ, Jung WT, Lee OJ, Hong SC. Segmental bile duct leakage after hepatic resection managed with percutaneous ablation by N-butyl cyanoacrylate. Korean J Hepatobiliary Pancreat Surg 2012; 16:115-9. [PMID: 26388919 PMCID: PMC4575005 DOI: 10.14701/kjhbps.2012.16.3.115] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Revised: 07/25/2012] [Accepted: 07/30/2012] [Indexed: 11/17/2022]
Abstract
A biloma is a rare abnormal accumulation of intrahepatic or extrahepatic bile caused by a traumatic or spontaneous rupture of the biliary tree. The reported incidence of postoperative biloma ranges from 4.8% to 7.6%. Biliary drainage is usually important and necessary for the treatment of biloma, but sometimes bile leakage fails to improve despite prolonged conservative drainage. We report a case of postoperative refractory biliary leakage managed with percutaneous ablation by N-butyl cyanoacrylate.
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Affiliation(s)
- Hyeon Sik Kim
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Tae Hyo Kim
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea. ; Institute of Health Science, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Eun Young Yun
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Hyun Seok Ham
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Hong Jun Kim
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Chi-Young Jeong
- Department of Surgery, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Hyun Jin Kim
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Woon Tae Jung
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Ok-Jae Lee
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Soon-Chan Hong
- Department of Surgery, Gyeongsang National University School of Medicine, Jinju, Korea
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Ahn MY, Han JW, Kim SJ, Hwang JS, Yun EY. Thirteen-Week Oral Dose Toxicity Study of G. bimaculatus in Sprague-Dawley Rats. Toxicol Res 2011; 27:231-40. [PMID: 24278577 PMCID: PMC3834393 DOI: 10.5487/tr.2011.27.4.231] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2011] [Revised: 11/02/2011] [Accepted: 11/15/2011] [Indexed: 11/20/2022] Open
Abstract
Gryllus bimaculatus (Gb) was orally administered at doses of 0, 0.04, 0.2, 1 and 5 g/kg bw/day for 13 consecutive weeks. There were no observed clinical signs or deaths related to treatment in all the groups tested. Therefore, the approximate lethal oral dose of G. bimaculatus was considered to be higher than 5 g/kg in rats. Throughout the administration period, no significant changes in diet consumption, ophthalmologic findings, organ weight, clinical pathology (hematology, clinical chemistry, coagulation, and urinalysis) or gross pathology were detected. Minor changes were found in hematological parameters for the 5 g/kg Gb-treated group (triglyceride reduction of 35.8%), but all changes were within normal physiological ranges. Microscopic examination did not identify any treatment-related histopathologic changes in the organs of Gb-treated rats in the high dose group. From these results, one can conclude that the no-observed adverse effect level (NOAEL) of G. bimaculatus is higher than 5 g/kg bw/day in rats.
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Affiliation(s)
- Mi Young Ahn
- Department of Agricultural Biology, National Academy of Agricultural, RDA, Suwon 441-100, Korea
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Ma JE, Yun EY, Kim YE, Lee GD, Cho YJ, Jeong YY, Jeon KN, Jang IS, Kim HC, Lee JD, Hwang YS. Endobronchial aspergilloma: report of 10 cases and literature review. Yonsei Med J 2011; 52:787-92. [PMID: 21786444 PMCID: PMC3159936 DOI: 10.3349/ymj.2011.52.5.787] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [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] [Indexed: 01/15/2023] Open
Abstract
PURPOSE A retrospective investigation of the clinical and radiologic features as well as the bronchoscopic appearance was carried out in patients with endobronchial aspergilloma. MATERIALS AND METHODS Ten patients with endobronchial aspergilloma diagnosed by bronchoscopy and histological examination were identified at the Gyeongsang University Hospital of Korea, from May 2003 to May 2009. RESULTS The patients included 9 men and 1 woman, and the age of the patients ranged from 36 to 76 (median, 58 years). The associated diseases or conditions were: previous pulmonary tuberculosis in 7 patients, lung cancer in 2 patients, pulmonary resection in 1 patient, and foreign body of the bronchus in 1 patient. The chest radiologic finding showed fibrotic changes as a consequence of previous tuberculosis infection in 6 patients and a mass-like lesion in 2 patients. Two patients had a co-existing fungus ball, and an endobronchial lesion was suspected in only 2 patients on the CT scan. The bronchoscopic appearance was a whitish to yellow necrotic mass causing bronchial obstruction in 7 patients, foreign body with adjacent granulation tissue and whitish necrotic tissue in 1 patient, whitish necrotic tissue at an anastomosis site in 1 patient, and a protruding mass with whitish necrotic tissue in 1 patient. CONCLUSION An endobronchial aspergilloma is a rare presentation of pulmonary aspergilosis and is usually incidentally found in immunocompetent patients with underlying lung disease. It usually appears as a necrotic mass causing bronchial obstruction on bronchoscopy and can be confirmed by biopsy.
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Affiliation(s)
- Jeong Eun Ma
- Department of Internal Medicine, College of Medicine, Gyeongsang National University, Jinju, Korea
| | - Eun Young Yun
- Department of Internal Medicine, College of Medicine, Gyeongsang National University, Jinju, Korea
| | - You Eun Kim
- Department of Internal Medicine, College of Medicine, Gyeongsang National University, Jinju, Korea
| | - Gi Dong Lee
- Department of Internal Medicine, College of Medicine, Gyeongsang National University, Jinju, Korea
| | - Yu Ji Cho
- Department of Internal Medicine, College of Medicine, Gyeongsang National University, Jinju, Korea
- Gyeongsang Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
| | - Yi Yeong Jeong
- Department of Internal Medicine, College of Medicine, Gyeongsang National University, Jinju, Korea
- Gyeongsang Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
| | - Kyoung-Nyeo Jeon
- Department of Diagnostic Radiology, College of Medicine, Gyeongsang National University, Jinju, Korea
- Gyeongsang Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
| | - In Seok Jang
- Department of Thoracic Surgery, College of Medicine, Gyeongsang National University, Jinju, Korea
- Gyeongsang Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
| | - Ho Cheol Kim
- Department of Internal Medicine, College of Medicine, Gyeongsang National University, Jinju, Korea
- Gyeongsang Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
| | - Jong Deok Lee
- Department of Internal Medicine, College of Medicine, Gyeongsang National University, Jinju, Korea
- Gyeongsang Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
| | - Young Sil Hwang
- Department of Internal Medicine, College of Medicine, Gyeongsang National University, Jinju, Korea
- Gyeongsang Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
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Abstract
BACKGROUND AND OBJECTIVE Recently, angiopoietin-2 (Ang-2) was identified as a ligand of the endothelial receptor tyrosine kinase, Tie-2. Ang-2 is an angiopoietin-1 antagonist that plays a role in vascular destabilization and remodelling, which may increase in some diseases. However, serum Ang-2 levels have not been evaluated in patients with COPD. In this study, we examined serum Ang-2 concentrations in patients experiencing COPD exacerbations and in patients with stable COPD. METHODS Serum samples were obtained from 49 patients experiencing COPD exacerbations, 22 patients with stable COPD and 18 healthy control subjects. Serum Ang-2 concentrations were measured by ELISA. RESULTS Serum Ang-2 concentrations were significantly higher in patients with acute exacerbations of COPD than in those with stable COPD or control subjects, and were significantly positively correlated with serum CRP levels but inversely correlated with PaO(2) in patients with exacerbations. In addition, Ang-2 levels decreased significantly after clinical recovery from the acute exacerbation. CONCLUSIONS Serum Ang-2 levels are significantly elevated during acute exacerbations of COPD, as compared with stable COPD.
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Affiliation(s)
- Yu Ji Cho
- Division of Respiratory and Critical Care Medicine, Department of Internal Medicine, Gyeongsang National University College of Medicine, Jinju, Korea
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Kim YH, Park NC, Park HJ, Yun EY. Factors Associated with the Timing of First Sexual Intercourse Among College Students in Busan, Korea. ACTA ACUST UNITED AC 2011. [DOI: 10.5534/kja.2011.29.2.134] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Young Hae Kim
- College of Nursing, Pusan National University, Busan, Korea
| | - Nam Cheol Park
- Department of Urology, Pusan National University College of Medicine, Busan, Korea
| | - Hyun Jun Park
- Department of Urology, Pusan National University College of Medicine, Busan, Korea
| | - Eun Young Yun
- Department of Biostatistics, Clinical Trial Center, Pusan National University Hospital, Busan, Korea
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Jin CY, Han SY, Kwon K, Yun EY, Kang SW, Goo TW, Kim SW, Yu K, Kwon OY. Production of recombinant human granulocyte macrophage colony-stimulating factor from silkworm Bombyx mori Bm5 cells. Z NATURFORSCH C 2010; 65:153-6. [PMID: 20355336 DOI: 10.1515/znc-2010-1-224] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Using silkworm Bombyx mori Bm5 cells, we established a stable cell line expressing the human granulocyte macrophage colony-stimulating factor (hGM-CSF), which gets its name from the Bm5-hGM-CSF cell in which the glycoprotein of the hGM-CSF is secreted in the cell culture supernatant (CCS). It was demonstrated that secreted hGM-CSF had in vivo biological activity and the white blood cell (WBC) value increased two times that of the control. We expect to produce useful human recombinant glycoproteins from silkworm cultured cells for a low price and a large quantity.
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Affiliation(s)
- Cho-Yi Jin
- Department of Anatomy, School of Medicine, Chungnam National University, Taejon 301-747, Korea
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Kim SR, Hong MY, Park SW, Choi KH, Yun EY, Goo TW, Kang SW, Suh HJ, Kim I, Hwang JS. Characterization and cDNA cloning of a cecropin-like antimicrobial peptide, papiliocin, from the swallowtail butterfly, Papilio xuthus. Mol Cells 2010; 29:419-23. [PMID: 20213310 DOI: 10.1007/s10059-010-0050-y] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2009] [Revised: 12/29/2009] [Accepted: 12/31/2009] [Indexed: 10/19/2022] Open
Abstract
Cecropin is a well-studied antimicrobial peptide that is synthesized in fat body cells and hemocytes of insects in response to hypodermic injury or bacterial infection. A 503 bp cDNA encoding for a cecropin-like peptide was isolated by employing annealing control primer (ACP)-based differential display PCR and 5'-RACE with immunized Papilio xuthus larvae. The open reading frame of the isolated cDNA encoded for a 62-amino acid prepropeptide with a putative 22-residue signal peptide, a 2-residue propeptide, and a 38-residue mature peptide with a theoretical mass of 4060.89 Da. The deduced amino acid sequence of the peptide evidenced a significant degree of identity with other lepidopteran cecropins. This peptide was named papiliocin. RTPCR results revealed that the papiliocin transcript was detected at significant levels after injection with bacterial lipopolysaccharide (LPS). On the basis of the deduced amino acid sequence of papiliocin, a 38-mer mature peptide was chemically synthesized via the Fmoc method, and its antimicrobial activity was analyzed. The synthetic papiliocin peptide evidenced a broad spectrum of activity against fungi, Gram-positive and Gram-negative bacteria, and also evidenced no hemolytic activity against human red blood cells.
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Affiliation(s)
- Seong Ryul Kim
- Department of Agricultural Biology, National Academy of Agricultural Science, Rural Development Administration, Suwon, 441-100, Korea
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Yun EY, Kim HS, Kim YE, Kang MK, Ma JE, Lee GD, Cho YJ, Kim HC, Lee JD, Hwang YS, Jeong YY. A case of anaphylaxis after the ingestion of yacon. Allergy Asthma Immunol Res 2010; 2:149-52. [PMID: 20358031 PMCID: PMC2846740 DOI: 10.4168/aair.2010.2.2.149] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2009] [Accepted: 12/30/2009] [Indexed: 12/04/2022]
Abstract
Anaphylaxis is a potentially life-threatening systemic allergic reaction, often with an explosive onset; the symptoms range from mild flushing to upper respiratory obstruction, with or without vascular collapse. Foods are common offending allergens and remain the leading cause of outpatient anaphylaxis in most surveys. Yacon (Smallanthus sonchifolius) is a plant native to the Andes region, where its root is cultivated and consumed mainly as food. Unlike most edible roots, yacon contains large amounts of ructooligosaccharides. Traditionally, yacon tubers have been used as a source of natural sweetener and syrup for people suffering from various disorders. We report the case of a 55-year-old woman who developed syncope and generalized urticaria after ingesting yacon roots. The patient had positive skin prick and intradermal tests to yacon extract. An open food challenge test was performed to confirm food anaphylaxis and was positive 10 minutes after the consumption of yacon roots. To our knowledge, this is the first reported case of anaphylaxis after the ingestion of yacon roots.
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Affiliation(s)
- Eun Young Yun
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Hyun Sik Kim
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - You Eun Kim
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Min Kyu Kang
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Jeong Eun Ma
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Gi Dong Lee
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Yu Ji Cho
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
- Institute of Health Science, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Ho Cheol Kim
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
- Institute of Health Science, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Jong Deok Lee
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
- Institute of Health Science, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Young Sil Hwang
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
- Institute of Health Science, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Yi Yeong Jeong
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
- Institute of Health Science, Gyeongsang National University School of Medicine, Jinju, Korea
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29
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Seol YM, Kwon BR, Song MK, Choi YJ, Shin HJ, Chung JS, Cho GJ, Lee JC, Lee BJ, Wang SG, Kim HJ, Kim WT, Kim SJ, Yun EY. Measurement of tumor volume by PET to evaluate prognosis in patients with head and neck cancer treated by chemo-radiation therapy. Acta Oncol 2010; 49:201-8. [PMID: 20100156 DOI: 10.3109/02841860903440270] [Citation(s) in RCA: 78] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
PURPOSE To evaluate the prognostic value of the metabolic tumor volume measured on 18F-fluorodeoxyglucose positron emission tomography (FDG-PET) imaging and other clinical factors in patients treated for locally advanced head-and-neck cancer (HNC) at a single institution. MATERIALS AND METHODS Between June 2005 and August 2008, 59 patients with HNC that underwent pretreatment FDG-PET studies received neoadjuvant chemotherapy and radiation therapy. Metabolically active tumor regions were delineated on the pretreatment PET scans by a fixed SUV of 2.5. We evaluated the relationship of the 18F-fluorodeoxyglucose-PET maximum standardized uptake value (SUV) and the metabolic tumor volume (MTV) with the progression-free survival (PFS) and overall survival (OS). RESULTS The MTV and lymph node metastasis were predictive of the PFS and OS. The lymph node status did not correlate with the MTV. A higher MTV of 9.3 cm(3) was significantly associated with an increased risk of recurrence (2.19-fold, p = 0.006) and death (1.62-fold, p = 0.051). Separation of patients with tumor volumes <or= 9.3 cm(3) and no lymph node disease vs. any other combination was strongly predictive of the PFS and the OS. CONCLUSIONS MTV and lymph node status were prognostic values associated with survival. Quantitative measurement of tumor volume separates patients with a good prognosis from those with a poorer prognosis. A subset of patients with relatively small tumors and no lymph node involvement did very well.
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Affiliation(s)
- Young Mi Seol
- Division of Hemato-oncology, Department of Internal Medicine, National University Hospital Medical Research Institute, Seo-Gu, Busan, Korea
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30
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Yun EY, Cho SH, Go SI, Baek JH, Kim YE, Ma JE, Lee GD, Cho YJ, Jeong YY, Kim HC, Lee JD, Kim SJ, Hwang YS. Usefulness of Real-time PCR to DetectMycobacterium tuberculosisand Nontuberculous Mycobacteria. Tuberc Respir Dis (Seoul) 2010. [DOI: 10.4046/trd.2010.69.4.250] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Eun Young Yun
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Su Hee Cho
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Se Il Go
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Jong Ha Baek
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - You Eun Kim
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Jeong Eun Ma
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Gi Dong Lee
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Yu Ji Cho
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Yi Yeong Jeong
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
- Gyeongsang Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
| | - Ho Cheol Kim
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
- Gyeongsang Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
| | - Jong Deok Lee
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
- Gyeongsang Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
| | - Sun-Joo Kim
- Gyeongsang Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
- Department of Laboratory Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Young Sil Hwang
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
- Gyeongsang Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
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31
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Kim HS, Kim YE, Yun EY, Ju JH, Ma JE, Lee GD, Cho YJ, Kim HC, Lee JD, Hwang YS, Jeong YY. A Case of Fatal Hyperinfective Strongyloidiasis with Acute Respiratory Failure and Intestinal Perforation in Lung Cancer Patient. Tuberc Respir Dis (Seoul) 2010. [DOI: 10.4046/trd.2010.68.1.29] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Hyeon Sik Kim
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Yu Eun Kim
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Eun Young Yun
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Ji Hyun Ju
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Jeong Eun Ma
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Gi Dong Lee
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Yu Ji Cho
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Ho Cheol Kim
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Jong Deok Lee
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Young Sil Hwang
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Yi Yeong Jeong
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
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32
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Ahn MY, Jee SD, Lee BM, Yeon JH, Park KK, Hwang JS, Yun EY. Antidiabetic effects and gene expression profiling in obese mice treated with Isaria sinclairii over a 6-month period. J Toxicol Environ Health A 2010; 73:1511-1520. [PMID: 20954077 DOI: 10.1080/15287394.2010.511575] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The molecular mechanisms underlying the glucose-lowering effects of Isaria sinclairii (Cicada Dongchunghacho), a fungus cultured on silkworm, are not fully elucidated. Thus the glucose-lowering effects of I. sinclairii as potential an antidiabetic agent were investigated in C57BL/6 obese (ob/ob) mice over a 6-mo period. For a period of 26 wk, ob mice were administered either 5 or 10% (w/w) I. sinclairii powder (IS), 10% dry mulberry leaf powder (ML), or 10% silkworm (SW) powder in the standard diet while a control group received only standard diet. The ML and SW preparations served as positive controls. Isaria sinclairii at 10% in the diet was more effective in reducing body weight compared to 10% ML, 10% SW, or 5% I. sinclairii. The fall in blood glucose levels in the groups treated for 26 wk was greater in both IS groups at 1 mo compared to ML or SW but equal in all groups at 6 mo. Microarray analyses were performed with a mouse 7.4K cDNA clone set array to identify the gene-expression profiles for the IS-, ML-, and SW-exposed ob mouse liver. The 10% IS group, compared to control, showed that 15 genes including glucokinase (Gk-rs1) and LDL receptor relating protein 1 were upregulated and 12 genes including cell translocation gene2 (antiproliferative) and hydroxyprostaglandin dehydrogenase (Hpgd 15) were downregulated. Upregulation of Gk-rs 1 and downregulation of Hpgd 15 were previously shown to occur in drug-induced suppression of diabetes. With ML, Lepr (leptin receptor), Pik3cb (phosphatidylinositol 3-kinase), and Prodh (proline dehydrogenase), related to suppression of diabetes, were upregulated. In the case of SW, the enzymes (G2an, alpha glucosidase 2) and Mmp9 (matrix metalloproteinase 9) involved in elevation of blood glucose levels were both downregulated. Data suggest that I. sinclarii is effective in lowering blood glucose due to the upregulation of glucokinase (Gk-rs1) and downregulation of hydroxyprostaglandin dehydrogenase (Hpgd 15), both associated with suppression of diabetes, indicating that microarray analysis is a useful tool to assess pharmacological potency of therapeutic compounds.
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Affiliation(s)
- Mi Young Ahn
- Department of Agricultural Biology, National Academy of Agricultural Science, RDA, 61 Seodun-Dong, Kwunseon-gu, Suwon 441-100, Korea.
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Goo TW, Yun EY, Kim SW, Choi KH, Kang SW, Shin KS, Yu K, Kwon OY. Domain a' of Bombyx mori protein disulfide isomerase has chaperone activity. ACTA ACUST UNITED AC 2008; 63:435-9. [PMID: 18669032 DOI: 10.1515/znc-2008-5-620] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Protein disulfide isomerase (PDI) is an endoplasmic reticulum (ER)-localized multifunctional enzyme that can function as a disulfide oxidase, a reductase, an isomerase, and a chaperone. The domain organization of PDI is abb'xa'c, with two catalytic (CxxC) motifs and a KDEL ER retention motif. The members of the PDI family exhibit differences in tissue distribution, specificity, and intracellular localization. We previously identified and characterized the PDI of Bombyx mori (bPDI) as a thioredoxin-like protein that shares primary sequence homology with other PDIs. Here we compare the reactivation of inactivated rRNase and sRNase by bPDI and three bPDI mutants, and show that bPDI has mammalian PDI-like activity. On its own, the N-terminal a domain does not retain this activity, but the a' domain does. This is the first report of chaperone activity only in the a' domain, but not in the a domain.
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Affiliation(s)
- Tae Won Goo
- Department of Agricultural Biology, National Institute of Agricultural Science and Technology, RDA, Suwon 441-100, Korea
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Abstract
The insect baculovirus expression vector system (BEVS) is useful for the production of biologically active recombinant proteins. However, the overexpression of foreign proteins in this system often results in misfolded proteins and the formation of protein aggregates. To overcome this limitation, we have developed a versatile baculovirus expression and secretion system using the Bombyx mori protein disulfide isomerase (bPDI) as a fusion partner. bPDI gene fusion improved the secretion and antibacterial activity of recombinant enbocin proteins. Thus, bPDI gene fusion is a useful addition to the BEVS for the large-scale production of bioactive recombinant proteins.
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Affiliation(s)
- Tae Won Goo
- Department of Agricultural Biology, National Institute of Agricultural Science and Technology, RDA, Suwon 441-100, Korea
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Kim I, Lee EM, Seol KY, Yun EY, Lee YB, Hwang JS, Jin BR. The mitochondrial genome of the Korean hairstreak, Coreana raphaelis (Lepidoptera: Lycaenidae). Insect Mol Biol 2006; 15:217-25. [PMID: 16640732 DOI: 10.1111/j.1365-2583.2006.00630.x] [Citation(s) in RCA: 128] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
We determined the complete nucleotide sequences of the mitochondrial genome (mitogenome) of the Korean hairstreak, Coreana raphaelis (Lepidoptera: Lycaenidae). The entire mitochondrial DNA (mtDNA) molecule was 15,314 bp long. The C. raphaelis genes were in the same order and orientation as the completely sequenced mitogenomes of other lepidopteran species, except for the presence of an extra copy of tRNA(Ser)(AGN). High similarity in primary sequence and secondary structure between the two tandemly located copies of the tRNA(Ser)(AGN) suggest a recent duplication of an original single tRNA(Ser)(AGN). The DHU arm of the two copies of tRNA(Ser)(AGN) formed a simple loop as seen in many other metazoan mt tRNA(Ser)(AGN). The putative initiation codon for the C. raphaelis COI gene appears to be a tetranucleotide, TTAG, found commonly in the sequenced lepidopterans. ATPase8, ATPase6, ND4L and ND6 genes, which are next to another protein-coding gene at their 3' end all had the sequences potential to form a hairpin structure, suggesting the importance of such a structure for precise cleavage of the mature protein-coding genes.
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Affiliation(s)
- I Kim
- Department of Agricultural Biology, The National Institute of Agricultural Science and Technology, Rural Development Administration, Suwon, Republic of Korea.
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Kim I, Lee KS, Hwang JS, Ahn MY, Yun EY, Li JH, Sohn HD, Jin BR. Molecular cloning and characterization of ATX1 cDNA from the mole cricket, Gryllotalpa orientalis. Arch Insect Biochem Physiol 2006; 61:231-8. [PMID: 16552768 DOI: 10.1002/arch.20114] [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] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
To search for an insect homologue of antioxidant protein 1 (ATX1), a mole cricket, Gryllotalpa orientalis, cDNA library was screened and a cDNA clone, which encodes a 73 amino acid polypeptide with a predicted molecular mass of 8.0 kDa and pI of 5.68, was isolated. The G. orientalis ATX1 (GoATX1) cDNA features both a MTCXXC copper-binding site in the N-terminus and a KTGK lysine-rich region in the C-terminus. The deduced amino acid sequence of the GoATX1 cDNA showed 63% identity to Drosophila melanogaster ATX1 and 55% to Ixodes pacificus ATX1. Northern blot analysis revealed the presence of GoATX1 transcripts in midgut, fat body, and epidermis. When H2O2 was injected into the body cavity of G. orientalis adult, GoATX1 mRNA expression was up-regulated in the fat body tissue. Fat body expression level of GoATX1 mRNA in the fat body was increased following exposure to low (4 degrees C) and high (37 degrees C) temperatures, suggesting that GoATX1 plays a protective role against oxidative stress caused by temperature shock. This is the first report about a functional role of insect ATX1 in antioxidant defense.
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Affiliation(s)
- Iksoo Kim
- Department of Agricultural Biology, National Institute of Agricultural Science and Technology, RDA, Suwon, Korea.
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Goo TW, Park S, Jin BR, Yun EY, Kim I, Nho SK, Kang SW, Kwon OY. Endoplasmic Reticulum Stress Response of Bombyx Mori Calreticulin. Mol Biol Rep 2005; 32:133-9. [PMID: 16172913 DOI: 10.1007/s11033-004-5908-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/25/2004] [Indexed: 10/25/2022]
Abstract
We isolated a calreticulin cDNA from the silkworm, Bombyx mori. The cDNA encodes 398 amino acid residues of B. mori calreticulin, with an endoplasmic reticulum retentional HDEL motif at its C-terminus and a predicted molecular mass of 45,801 Da. The B. mori calreticulin shows high protein homology with calreticulin from G. mellonella (88%), A. aegypti (71%), D. melanogaster (69%) and H. sapiens (63%). The highest level of mRNA expression of B. mori calreticulin was exhibited in the fat body of this insect. Although expression of B. mori calreticulin was affected by disturbances in intracellular calcium levels, other ER stress conditions such as inhibition of intracellular protein transport, reduction of disulfide formation, glycosylation inhibition, heat shock and oxidative stress did not disrupt induction of B. mori calreticulin.
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Affiliation(s)
- Tae Won Goo
- Department of Sericulture and Entomology, National Institute of Agricultural Science and Technology, Suwon, 441-744, Korea
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Abstract
It was previously reported that the up-regulation of ERp29 mRNA depends on the levels of thyroid stimulating hormone (TSH) in the thyrocytes of FRTL-5 cells. In order to investigate the putative new function of ERp29 as an endoplasmic molecular (ER) chaperone, an ERp29-overexpressing FRTL-5 cell line was established. This cell line had approximately three times the levels of ERp29 protein and an enhanced level of thyroglobulin (Tg) secretion. The results showed both enhanced ERp29 expression and an interaction with the other ER chaperones such as GRP94, BiP, ERp72 and calnexin. In addition, ERp29 enhanced the expression of PKR-like ER kinase (PERK), which is a transmembrane protein located in the ER membrane. These findings suggest that ERp29 assists in protein folding as well as in the secretion of the secretory/plasma membrane proteins under close co-operation with other ER chaperones and the ER stress signaler, PERK.
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Affiliation(s)
- Soojung Park
- Department of Anatomy, Chungnam National University, Taejon 301-747, Korea
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Goo TW, Yun EY, Choi KH, Kim SH, Nho SK, Kang SW, Kwon OY. ATFC is a novel transducer for the unfolded protein response in Bombyx mori BM5 cells. Biochem Biophys Res Commun 2004; 325:626-31. [PMID: 15530439 DOI: 10.1016/j.bbrc.2004.10.069] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2004] [Indexed: 11/19/2022]
Abstract
We report the isolation of activating transcription factor of chaperone (ATFC), a novel cDNA from Bombyx mori BM5 cells that encodes a putative transducer of endoplasmic reticulum (ER) stress. The 236 amino acids of ATFC include both a basic region and a leucine zipper at the C-terminus, in contrast to Hac1p of yeast which features these structures at its N-terminus. ATFC expression was strongly up-regulated by ER stress. ATFC could specifically bind to the unfolded protein response element. BM5 cells transfected with ATFC cDNA displayed enhanced ER chaperone expression in response to ER stress. These results indicate that ATFC encodes a putative transducer of ER stress.
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Affiliation(s)
- Tae Won Goo
- Department of Sericulture and Entomology, The National Institute of Agriculture, Science, and Technology, R.D.A., Suwon 441-100, Republic of Korea
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Abstract
We have isolated a complementary deoxyribonucleic acid clone that encodes the protein disulfide isomerase of Bombyx mori (bPDI). This protein has a putative open reading frame of 494 amino acids and a predicted size of 55.6 kDa. In addition, 2 thioredoxin active sites, each with a CGHC sequence, and an endoplasmic reticulum (ER) retention signal site with a KDEL motif were found at the C-terminal. Both sites are typically found in members of the PDI family of proteins. The expression of bPDI messenger ribonucleic acid (mRNA) was markedly increased during ER stress induced by stimulation with calcium ionophore A23187, tunicamycin, and dithiothreitol, all of which are known to cause an accumulation of unfolded proteins in the ER. We also examined the tissue distribution of bPDI mRNA and found pronounced expression in the fat body of insects. Hormonal regulation studies showed that juvenile hormone, insulin, and a combination of juvenile hormone and transferrin (although not transferrin alone) affected bPDI mRNA expression. A challenge with exogenous bacteria also affected expression, and the effect peaked 16 hours after infection. These results suggest that bPDI is a member of the ER-stress protein group, that it may play an important role in exogenous bacterial infection of the fat body, and that its expression is hormone regulated.
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Affiliation(s)
- Tae Won Goo
- Department of Sericulture and Entomology, National Institute of Agricultural Science and Technology, RDA, Suwon, Korea
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41
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Abstract
A cDNA that encodes protein disulfide isomerase was isolated from Bombyx mori (bPDI), in which an open reading frame of 494 amino acids contained two PDI-typical thioredoxin active sites of WCGHCK and an ER retention signal of the KDEL motif at its C-terminal. The bPDI protein shared less than 55% of the amino acid sequence homology with other reported PDIs. bPDI is most genetically similar to the D. melanogaster PDI. The most serious evolutional diversity was observed between the metazoa and nematoda through PDI evolutional processing. Although bPDI shows a relatively low amino acid homology with other PDIs, in which both sites of the two thioredoxin active sites and the endoplasmic reticulum (ER) retention signal are completely conserved, it was successfully recognized by anti-rat PDI antibodies. This suggests that bPDI may have the activity of a protein isomerase and a chaperone.
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Affiliation(s)
- Tae Won Goo
- Department of Sericulture and Entomology, National Institute of Agricultural Science and Technology, RDA, Suwon, Korea
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42
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Abstract
QM, a novel gene that was firstly isolated as a putative tumor suppressor gene from Wilms' tumor cell line. Although it is well known that the QM gene product plays an important role within the tumor cells, the precise role of QM in the non-tumor cells has remained elusive. With in this mind we isolated a cDNA encoding QM homologue from Bombyx mandarina to understand the function of QM. The 596 bp cDNA has an open reading frame of 219 amino acids and a predicted mol. wt. of 25 kDa. The protein has more than 88% amino acid sequence identity to the QM protein from Drosophila melanogaster. mRNA expression gradually increased from 1-2 days after egg laying to 2 days of finial instar, while very low expressions were detected for either the pupae and the moth stages. The organs, posterior/middle division of silkgland, midgut, fat body and malpighian tubes, also show relatively high mRNA expression levels, respectively. The high degree of conservation and expression of the B. mandarina QM homologous suggest that it has a selectively conserved amino acid sequence due, presumably, to an important biological role which is associated with pupae formation.
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Affiliation(s)
- J S Hwang
- National Sericulture and Entomology Research Institute, Rural Development Administration, Suwon, South Korea
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43
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Hwang JS, Lee JS, Goo TW, Yun EY, Sohn HR, Kim HR, Kwon OY. Molecular genetic relationships between Bombycidae and Saturniidae based on the mitochondria DNA encoding of large and small rRNA. Genet Anal 1999; 15:223-8. [PMID: 10609758 DOI: 10.1016/s1050-3862(99)00008-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The phylogenetic relationships between Bombycidae (Bombyx mori and Bombyx mandarina) and Saturniidae (Antheraea yamamai and Antheraea pernyi) were investigated based on large and small mitochondiral rRNA genes. About 430 bp of four kinds of PCR-amplified fragments were sequenced and aligned. For the 16S rRNA gene, B. mori shared a 98, 87 and 86% sequence homology with B. mandarina, A. yamamai and A. pernyi, and for the 12S rRNA gene, B. mori shared a 99, 89 and 88% sequence homology with B. mandarina, A. yamamai and A. pernyi, respectively. DNA sequence data were also used for a phylogenetic analysis. All of the trees showed monophyly for both Bombycidae and Saturniidae. The monophyly confidence limits of these trees were estimated using bootstrapping tests and measured more than 99% for all trees for both Bombycidae and Saturniidae.
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Affiliation(s)
- J S Hwang
- National Sericulture and Entomology Research, R.D.A., Suwon, South Korea
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Yun EY, Kang SW, Hwang JS, Goo TW, Kim SH, Jin BR, Kwon OY, Kim KY. Molecular cloning and characterization of a cDNA encoding a transferrin homolog from Bombyx mori. Biol Chem 1999; 380:1455-9. [PMID: 10661875 DOI: 10.1515/bc.1999.188] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
We isolated a cDNA representing a message that was strongly induced by injection with E. coli in Bombyx mori. The 2160 bp cDNA has an open reading frame of 644 amino acids and the deduced product a predicted molecular mass of 71 kDa. The cDNA sequence shared high homology with the transferrins known so far, and its deduced peptide had unique features of transferrins, that is, sites of cystein residues and iron binding. We suggest that the B. mori transferrin plays an important role in the self-defense system.
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Affiliation(s)
- E Y Yun
- Department of Sericulture and Entomology, National Institute of Agricultural Science and Technology, RDA, Suwon, Korea
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45
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Kim SH, Park BS, Yun EY, Je YH, Woo SD, Kang SW, Kim KY, Kang SK. Cloning and expression of a novel gene encoding a new antibacterial peptide from silkworm, Bombyx mori. Biochem Biophys Res Commun 1998; 246:388-92. [PMID: 9610369 DOI: 10.1006/bbrc.1998.8626] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We differentially screened a novel gene encoding a new antibacterial peptide from the immunized Bombyx mori cDNA library. The gene showed a similar structure to that of cecropin-family, encoding 59 amino acids including a putative leader peptide and mature peptide. The deduced peptide, named Enbocin, had conserved amino acid residues which have been known to play an important role in the antibacterial activities. Enbocin genomic sequence revealed that the transcription unit of Enbocin gene was about 1.2 kb, and the coding sequence was interrupted by an intron of 660 bases. Recombinant Enbocin, expressed under the control of the baculovirus polyhedrin promoter, demonstrated a broad range of antibacterial activities against gram positive and gram negative bacteria.
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Affiliation(s)
- S H Kim
- National Sericulture & Entomology Research Institute, RDA, Suwon, Korea
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