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Han S, Deng Z, Cheung K, Lyu T, Chan P, Li Y, Ni L, Luo X, Li K. Vonoprazan-based triple and dual therapy versus bismuth-based quadruple therapy for Helicobacter pylori infection in China: a three-arm, randomised clinical trial protocol. BMC Gastroenterol 2023; 23:231. [PMID: 37420205 DOI: 10.1186/s12876-023-02872-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 07/04/2023] [Indexed: 07/09/2023] Open
Abstract
BACKGROUND Helicobacter pylori infection and associated diseases are a growing global public health issue. H. pylori infection is the major cause of gastric cancer, over 90% of duodenal ulcers, and over 70% of gastric ulcers. The infection rate of H. pylori is approximately 50%, and approximately 50% of new cases of gastric cancer worldwide occur in China. Bismuth (BI)-based quadruple therapy is recommended as the first-line treatment for H. pylori in China. Vonoprazan (VPZ), a new potassium-competitive acid blocker that can inhibit gastric acid secretion more effectively than proton pump inhibitors (PPIs), has been combined with antibiotics to effectively eradicate H. pylori. In this study, we compared the efficacy and safety of two VPZ-based therapies with that of BI-based therapy for H. pylori treatment. METHODS A three-armed randomised controlled trial (RCT) is being conducted in Shenzhen, with 327 participants recruited from the Gastroenterology Clinic of the University of Hong Kong-Shenzhen Hospital. Patients were diagnosed with H. pylori infection based on a positive 13C-urea breath test (UBT). Patients are kept naïve to their treatment and are randomly assigned in a 1:1:1 ratio to either VPZ-based triple, VPZ-based dual, or BI-based quadruple therapy for 14 days. All groups are subjected to follow-up evaluations of safety, adverse drug reactions, and clinical variables in the first, second, and fourth weeks after treatment. Successful eradication is confirmed by a negative 13C-UBT six weeks after treatment. If initial treatment fails, (1) those patients are turned to another regimen, or (2) a drug resistance test is conducted, after which an individualised treatment regimen shall be prescribed according to antimicrobial susceptibility testing. The resulting data will be evaluated using intention-treat and a per-protocol analysis. DISCUSSION This study is the a RCT aims to evaluate the efficacy and safety of 14-day VPZ-based triple and dual therapies in comparison with BI-based quadruple therapy. The outcomes of this study may allow treatment recommendations and update drug instructions in China. TRIAL REGISTRATION Chinese Clinical Trial Registry (No. ChiCTR2200056375). Registered on February 4, 2022, https://www.chictr.org.cn/showproj.aspx?proj=141314.
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Affiliation(s)
- ShaoWei Han
- Shantou University Medical College, Shantou, China
- Department of Pharmacy, University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - ZiJie Deng
- Department of Medicine, University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - KaShing Cheung
- Department of Medicine, University of Hong Kong-Shenzhen Hospital, Shenzhen, China
- Department of Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong, China
| | - Tao Lyu
- Department of Medicine, University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - PuiLing Chan
- Department of Pharmacy, University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - Ying Li
- Department of Pharmacy, University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - Li Ni
- Department of Medicine, University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - XiaPeng Luo
- Department of Medicine, University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - Kuan Li
- Department of Pharmacy, Shenzhen People's Hospital, Second Clinical Medical College, Jinan University, First Affiliated Hospital, Southern University of Science and Technology, Shenzhen, China.
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Tiera MJ, Martins GO, Júnior AMM, Petrônio MS, Mello LR, Han SW. AMPHIPATHIC CHITOSANS AS VECTORS FOR SIRNA DELIVERY. Cytotherapy 2021. [DOI: 10.1016/j.jcyt.2021.02.012] [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: 10/21/2022]
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Han SW, Wang XJ, Cui BS, Sun H, Chen H, Ferreira D, Li S, Hamann MT. Hepatoprotective Glucosyloxybenzyl 2-Hydroxy-2-isobutylsuccinates from Pleione yunnanensis. J Nat Prod 2021; 84:738-749. [PMID: 33606538 DOI: 10.1021/acs.jnatprod.0c01117] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Nine new glucosyloxybenzyl 2-hydroxy-2-isobutylsuccinates, pleionosides M-U (1-9), and 12 known compounds (10-21) were isolated from the pseudobulbs of Pleione yunnanensis. Their structures and absolute configurations were established through a combination of HRESIMS and NMR data and supported by physical and chemical methods. Compounds 5, 6, 10, and 15 showed significant in vitro hepatoprotective activity against d-galactosamine (d-GalN)-induced toxicity in HL-7702 cells with increasing cell viability by 27%, 22%, 19%, and 31% compared to the model group (cf. bicyclol, 14%) at 10 μM, respectively. Compounds 4, 9, and 11 exhibited moderate hepatoprotective activity against N-acetyl-p-aminophenol (APAP)-induced toxicity in HepG2 cells with increasing cell viability by 9%, 16%, and 12% compared to the model group (cf. bicyclol, 9%) at 10 μM, respectively.
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Affiliation(s)
- Shao-Wei Han
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Xiao-Juan Wang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
- Department of Drug Discovery and Biomedical Sciences, College of Pharmacy, Medical University of South Carolina, Charleston, South Carolina 29425, United States
| | - Bao-Song Cui
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Hua Sun
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Hui Chen
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Daneel Ferreira
- Department of BioMolecular Sciences, Division of Pharmacognosy, Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, University, Mississippi 38677-1848, United States
| | - Shuai Li
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Mark T Hamann
- Department of Drug Discovery and Biomedical Sciences, College of Pharmacy, Medical University of South Carolina, Charleston, South Carolina 29425, United States
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Sun MH, Ma XJ, Shao SY, Han SW, Jiang JW, Zhang JJ, Li S. Phenanthrene, 9,10-dihydrophenanthrene and bibenzyl enantiomers from Bletilla striata with their antineuroinflammatory and cytotoxic activities. Phytochemistry 2021; 182:112609. [PMID: 33326906 DOI: 10.1016/j.phytochem.2020.112609] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 11/27/2020] [Accepted: 11/27/2020] [Indexed: 06/12/2023]
Abstract
Thirteen undescribed phenanthrene and bibenzyl derivatives, named blestanols A-M, including one pair of biphenanthrene enantiomers, two bis 9,10-dihydrophenanthrene ethers, five pairs of 9,10-dihydrophenanthrene/bibenzyl atropisomers, one racemic 9,10-dihydrophenanthrene/bibenzyl dimer, one 9,10-dihydrophenanthrenebibenzyl ether, two pairs of bibenzyl derivatives, and one stilbene, together with 12 known analogues were isolated from the tubers of Bletilla striata. The structures were elucidated via spectroscopic data analysis. 15 compounds were purified to yield enantiomers (a, b) via chiral-phase HPLC, and their configurations were determined by optical rotation values and the comparison of the experimental and calculated electronic circular dichroism (ECD) curves. Blestanols K-L possessed a cycloheptene moiety, which is rarely observed in bibenzyl derivatives. A putative biosynthetic pathway for the identified components is deduced. Among these compounds, 14 compounds showed inhibition of NO production, with IC50 values ranging from 5.0 to 19.0 μM. Eight compounds displayed selective cytotoxic activities against HCT-116, HepG2, BGC-823, A549 or U251 cancer cell lines, with IC50 values ranging from 1.4 to 8.3 μM. In addition, their structure-activity relationships are discussed briefly.
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Affiliation(s)
- Mo-Han Sun
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Xian-Jie Ma
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Si-Yuan Shao
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Shao-Wei Han
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Jian-Wei Jiang
- Department of Pharmacology, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Jian-Jun Zhang
- Department of Pharmacology, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Shuai Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China.
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Cho GJ, Lee KM, Kim HY, Han SW, Oh MJ, Chiec L, Chae YK. Postpartum haemorrhage requiring transfusion and risk of cardiovascular disease later in life: a retrospective cohort study. BJOG 2020; 128:738-744. [PMID: 32946626 DOI: 10.1111/1471-0528.16515] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/11/2020] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To determine whether postpartum haemorrhage (PPH) is associated with cardiovascular disease (CVD), including cerebrovascular and ischaemic heart disease beyond the peripartum period. DESIGN Population-based cohort study. SETTING Merged databases of the Korea National Health Insurance (KNHI) claims, National Health Screening Examination and National Health Screening Program for Infants and Children. POPULATION Women who gave birth in 2007 in the Republic of Korea and who were tracked through to 2015 for the occurrence of CVD. METHODS Patients were identified and the occurrences of PPH and transfusion were determined using the KNHI claims database. The occurrence of CVD was tracked through 2015 using codes from the International Classification of Diseases, tenth revision (ICD-10). MAIN OUTCOME MEASURES The risk of CVD after PPH. RESULTS Among 150 381 women who gave birth during the study period, 9107 were diagnosed with PPH and 899 were treated with transfusion. The risk of CVD in women with PPH was no different than in women without PPH, after adjustment (HR 1.03, 95% CI 0.93-1.13). The risk of CVD in women with PPH requiring transfusion was significantly increased compared with women without PPH, after adjustment (HR 1.60, 95% CI 1.25-2.06). The risk of CVD in women with PPH without transfusion was not significantly different compared with women without PPH (HR 0.96, 95% CI 0.86-1.07). CONCLUSIONS Postpartum haemorrhage (PPH) requiring transfusion is associated with an increased risk of CVD. Guidelines for management should be established, and further studies on the mechanisms involved should be conducted. TWEETABLE ABSTRACT PPH requiring transfusion is associated with an increased risk of CVD.
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Affiliation(s)
- G J Cho
- Department of Obstetrics and Gynecology, Korea University College of Medicine, Seoul, Korea.,Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - K-M Lee
- School of Industrial Management Engineering, Korea University, Seoul, Korea
| | - H Y Kim
- Department of Obstetrics and Gynecology, Korea University College of Medicine, Seoul, Korea
| | - S W Han
- School of Industrial Management Engineering, Korea University, Seoul, Korea
| | - M-J Oh
- Department of Obstetrics and Gynecology, Korea University College of Medicine, Seoul, Korea
| | - L Chiec
- Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Y K Chae
- Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.,Robert H. Lurie Comprehensive Cancer Center of Northwestern University, Chicago, IL, USA
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Yang WS, Liu S, Han SW, Wang JW, Guo J, Yan Y, Guo HJ. Characteristics and Transformation Mechanism of Nonmetallic Inclusions in 304 Stainless Steel during Heat Treatment at 1250 °C. Materials (Basel) 2020; 13:ma13235396. [PMID: 33261087 PMCID: PMC7729443 DOI: 10.3390/ma13235396] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 11/23/2020] [Accepted: 11/23/2020] [Indexed: 11/16/2022]
Abstract
Evolutions of two typical types of nonmetallic inclusions, i.e., inclusions based on CaO-SiO2-Al2O3 and MnO-SiO2-Al2O3 of 304 stainless steel were investigated in laboratory-scale experiments under isothermal heat treatment at 1250 °C for 0, 30, 60 and 120 min. Results show inclusion population density increases at the first stage and then decreases while their average size decreases and then increases. Moreover, almost no Cr2O3 content within the inclusion before the heat treatment, but Cr2O3 content increases gradually along with increasing heat treatment time. Furthermore, the increasing of Cr2O3 content in the inclusions would increase their melting points and reduce their plasticities. The experimental results and thermodynamic analysis indicate that there are three steps for inclusion evolution during the heat treatment process, in which Ostwald ripening plays an important role in inclusion evolution, i.e., inclusions grow by absorbing the newly formed small-size MnO-Cr2O3 inclusions.
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Affiliation(s)
- Wen-Sheng Yang
- School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing (USTB), Beijing 100083, China; (W.-S.Y.); (S.L.); (Y.Y.); (H.-J.G.)
| | - Shuai Liu
- School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing (USTB), Beijing 100083, China; (W.-S.Y.); (S.L.); (Y.Y.); (H.-J.G.)
| | - Shao-Wei Han
- Steelmaking Department, Beijing Shougang Co., Ltd, Qian’an 064400, China;
| | - Jia-Wei Wang
- Material Research and Surface Engineering Research Center, Dongfang Electric Corporation Dongfang Turbine Co., LTD, Deyang 618000, China;
| | - Jing Guo
- School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing (USTB), Beijing 100083, China; (W.-S.Y.); (S.L.); (Y.Y.); (H.-J.G.)
- Correspondence: ; Tel.:+86-010-15801530260
| | - Yan Yan
- School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing (USTB), Beijing 100083, China; (W.-S.Y.); (S.L.); (Y.Y.); (H.-J.G.)
| | - Han-Jie Guo
- School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing (USTB), Beijing 100083, China; (W.-S.Y.); (S.L.); (Y.Y.); (H.-J.G.)
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7
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Cai L, Shao SY, Han SW, Li S. Sesquiterpenoids, phenolic and lignan glycosides from the roots and rhizomes of Clematis hexapetala Pall. and their bioactivities. Bioorg Chem 2020; 104:104312. [PMID: 33142424 DOI: 10.1016/j.bioorg.2020.104312] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 09/18/2020] [Accepted: 09/20/2020] [Indexed: 10/23/2022]
Abstract
Approximately 17 compounds were isolated from a 60% EtOH aqueous extract of the roots and rhizomes of Clematis hexapetala Pall., including three new guaianolide sesquiterpenoids with 5/7/5-fused rings and 3S-configuration (1-3), five new prenylated tetra-substituted phenolic glycosides (4-8) with 6/6-fused 9H-benzopyran skeleton (5) and 6/7-fused 7,10-dihydro-benzoxepin skeleton (6-8), one new isoferulyl glucoside (9), two new furofuran lignan diglucosides (10-11), and six known compounds. The chemical structures of the new compounds were elucidated via spectroscopic data and electronic circular dichroism (ECD) analyses in combination with a modified Mosher's method. The possible biosynthetic relationships of prenylated tetra-substituted phenols were postulated. In the in vitro assays, compound 16 exhibited moderate TNF-α secretion inhibitory activity with IC50 value of 3.419 μM. Compounds 14-16 displayed potent PTP1B enzymatic inhibitory activities with inhibition ratios of 48.30-86.00%. And compound 16 showed significant PTP1B enzymatic inhibition with IC50 value of 4.623 μM.
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Affiliation(s)
- Lu Cai
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, People's Republic of China
| | - Si-Yuan Shao
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, People's Republic of China
| | - Shao-Wei Han
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, People's Republic of China
| | - Shuai Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, People's Republic of China.
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Han SW, Shao SY, Sun H, Li S. Two new phenylpropanoid glycosidic compounds from the pseudobulbs of Pleione bulbocodioides and their hepatoprotective activity. Nat Prod Res 2020; 36:1980-1987. [PMID: 33121294 DOI: 10.1080/14786419.2020.1839457] [Citation(s) in RCA: 2] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Two new phenylpropanoid glycosidic compounds (a pair of epimers), named pleionosides K (1) and L (2), were isolated from the pseudobulbs of Pleione bulbocodioides (Franch.) Rolfe. Their structures, including absolute configurations, were elucidated by a combination of MS, NMR data, chemical methods and the comparison of experimental and calculated electronic circular dichroism (ECD). Their possible biosynthetic pathway was discussed in the text. Furthermore, the two compounds exhibited moderate hepatoprotective activity against N-acetyl-p-aminophenol (APAP)-induced HepG2 cell damage in in vitro assays, with cell survival rates of 25.83% and 28.82% at 10 μM, respectively, and antioxidant effect against H2O2-induced toxicity in human SK-N-SH cell, with increasing viability at 10 μM of 24.9% and 34.6%, respectively.
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Affiliation(s)
- Shao-Wei Han
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Si-Yuan Shao
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Hua Sun
- Beijing Key Laboratory of Drug Target Research and Drug Screening, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Shuai Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
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9
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Cho BH, Cheon K, Lee KY, Jung YH, Han SW, Park JH, Choi HY, Cho HJ, Park HJ, Nam HS, Heo JH, Lee HS, Kim S, Kim YD. Association between body mass index and stroke severity in acute ischaemic stroke with non-valvular atrial fibrillation. Eur J Neurol 2020; 27:1672-1679. [PMID: 32392368 DOI: 10.1111/ene.14304] [Citation(s) in RCA: 2] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Accepted: 04/30/2020] [Indexed: 01/22/2023]
Abstract
BACKGROUND AND PURPOSE The objective of this study was to investigate the association between body mass index (BMI) and both initial stroke severity at presentation and functional outcomes after acute ischaemic stroke (AIS) in patients with non-valvular atrial fibrillation (NVAF). METHODS Patients were categorized on the basis of their BMI into underweight (BMI <18.5, n = 111), normal (18.5 ≤ BMI <25, n = 1036) and overweight to obese (BMI ≥25, n = 472) groups. Initial stroke severity was assessed using the National Institutes of Health Stroke Scale (NIHSS) score and functional outcomes were assessed using the modified Rankin Scale score at discharge. The differences in stroke severity and functional outcomes were compared between groups using robust log-linear regression with a Poisson distribution and binary logistic regression analysis. RESULTS A total of 1619 AIS patients with NVAF from six hospitals were included. Compared with the NIHSS scores [median 5, interquartile range (IQR) 2-14] of normal-weight patients, the NIHSS scores (median 9, IQR 4-19) of underweight patients were more likely to be higher, whereas those of overweight to obese patients were lower (median 4, IQR 1-12) (P < 0.001). In terms of functional outcomes after stroke, underweight patients had a higher risk of poor functional outcomes (odds ratio 1.78, 95% confidence interval 1.09-2.56, P = 0.01) but overweight to obese patients had no significant difference in functional outcomes compared with normal-weight patients. CONCLUSION An inverse association was found between BMI and stroke severity in AIS patients with NVAF. This suggests the presence of an obesity paradox for short-term outcomes in patients with NVAF.
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Affiliation(s)
- B-H Cho
- Department of Neurology, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Korea.,Department of Neurology, Gangnam Severance Hospital, Severance Institute for Vascular and Metabolic Research, Yonsei University College of Medicine, Seoul, Korea
| | - K Cheon
- Department of Neurology, Gangnam Severance Hospital, Severance Institute for Vascular and Metabolic Research, Yonsei University College of Medicine, Seoul, Korea
| | - K-Y Lee
- Department of Neurology, Gangnam Severance Hospital, Severance Institute for Vascular and Metabolic Research, Yonsei University College of Medicine, Seoul, Korea
| | - Y H Jung
- Department of Neurology, Gangnam Severance Hospital, Severance Institute for Vascular and Metabolic Research, Yonsei University College of Medicine, Seoul, Korea.,Department of Neurology, Changwon Fatima Hospital, Changwon, Korea
| | - S W Han
- Department of Neurology, Sanggye Paik Hospital, Inje University College of Medicine, Seoul, Korea
| | - J H Park
- Department of Neurology, Sanggye Paik Hospital, Inje University College of Medicine, Seoul, Korea
| | - H-Y Choi
- Department of Neurology, Kyung Hee University School of Medicine, Kyung Hee University Hospital, Gangdong, Seoul, Korea
| | - H-J Cho
- Department of Neurology, Pusan National University Hospital, Pusan National University College of Medicine and Biomedical Research Institute, Busan, Korea
| | - H J Park
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea.,Department of Neurology, Brain Research Institute, Keimyung University School of Medicine, Daegu, Korea
| | - H S Nam
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
| | - J H Heo
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
| | - H S Lee
- Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, Korea
| | - S Kim
- Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, Korea
| | - Y D Kim
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
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10
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Wang C, Shao SY, Han SW, Li S. Atropisomeric bi(9,10-dihydro)phenanthrene and phenanthrene/bibenzyl dimers with cytotoxic activity from the pseudobulbs of Pleione bulbocodioides. Fitoterapia 2019; 138:104313. [DOI: 10.1016/j.fitote.2019.104313] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 08/13/2019] [Accepted: 08/13/2019] [Indexed: 10/26/2022]
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11
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Cho GJ, Choi S, Lee K, Han SW, Kim HY, Ahn K, Hong S, Kim H, Oh M. Women with threatened preterm labour followed by term delivery have an increased risk of spontaneous preterm birth in subsequent pregnancies: a population‐based cohort study. BJOG 2019; 126:901-905. [DOI: 10.1111/1471-0528.15653] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/02/2019] [Indexed: 11/30/2022]
Affiliation(s)
- GJ Cho
- Department of Obstetrics and Gynaecology Korea University College of Medicine Seoul Korea
| | - S‐J Choi
- Department of Obstetrics and Gynaecology Samsung Medical Centre Sungkyunkwan University School of Medicine Seoul Korea
| | - K‐M Lee
- School of Industrial Management Engineering Korea University Seoul Korea
| | - SW Han
- School of Industrial Management Engineering Korea University Seoul Korea
| | - HY Kim
- Department of Obstetrics and Gynaecology Korea University College of Medicine Seoul Korea
| | - K‐H Ahn
- Department of Obstetrics and Gynaecology Korea University College of Medicine Seoul Korea
| | - S‐C Hong
- Department of Obstetrics and Gynaecology Korea University College of Medicine Seoul Korea
| | - H‐J Kim
- Department of Obstetrics and Gynaecology Korea University College of Medicine Seoul Korea
| | - M‐J Oh
- Department of Obstetrics and Gynaecology Korea University College of Medicine Seoul Korea
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12
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Shao SY, Wang C, Han SW, Sun MH, Li S. Phenanthrenequinone enantiomers with cytotoxic activities from the tubers of Pleione bulbocodioides. Org Biomol Chem 2019; 17:567-572. [DOI: 10.1039/c8ob02850h] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This is a rare report of eight new phenanthrenequinones possessing a 9(10)H-phenanthren-10(9)-one structure and their marked cytotoxic activities from natural sources.
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Affiliation(s)
- Si-Yuan Shao
- Key Laboratory of Bioactive Substances and Functions of Natural Medicines
- Institute of Materia Medica
- Chinese Academy of Medical Sciences and Peking Union Medical College
- Beijing
- China
| | - Chao Wang
- Key Laboratory of Bioactive Substances and Functions of Natural Medicines
- Institute of Materia Medica
- Chinese Academy of Medical Sciences and Peking Union Medical College
- Beijing
- China
| | - Shao-Wei Han
- Key Laboratory of Bioactive Substances and Functions of Natural Medicines
- Institute of Materia Medica
- Chinese Academy of Medical Sciences and Peking Union Medical College
- Beijing
- China
| | - Mo-Han Sun
- Key Laboratory of Bioactive Substances and Functions of Natural Medicines
- Institute of Materia Medica
- Chinese Academy of Medical Sciences and Peking Union Medical College
- Beijing
- China
| | - Shuai Li
- Key Laboratory of Bioactive Substances and Functions of Natural Medicines
- Institute of Materia Medica
- Chinese Academy of Medical Sciences and Peking Union Medical College
- Beijing
- China
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13
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Wang YR, Cui BS, Han SW, Li S. New dammarane triterpenoid saponins from the leaves of Cyclocarya paliurus. J Asian Nat Prod Res 2018; 20:1019-1027. [PMID: 29614867 DOI: 10.1080/10286020.2018.1457653] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Accepted: 03/23/2018] [Indexed: 06/08/2023]
Abstract
Three new dammarane triterpenoid saponins, cyclocariosides O-Q (1-3), were isolated from the ethanolic extracts of the leaves of Cyclocarya paliurus. The structures of these compounds were elucidated by spectroscopic methods.
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Affiliation(s)
- Yi-Rui Wang
- a State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica , Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050 , China
| | - Bao-Song Cui
- a State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica , Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050 , China
| | - Shao-Wei Han
- a State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica , Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050 , China
| | - Shuai Li
- a State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica , Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050 , China
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14
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Ma XJ, Cui BS, Han SW, Li S. [Chemical constituents from tuber of Bletilla striata]. Zhongguo Zhong Yao Za Zhi 2018; 42:1578-1584. [PMID: 29071865 DOI: 10.19540/j.cnki.cjcmm.2017.0051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Indexed: 11/18/2022]
Abstract
Eighteen compounds were isolated from the EtOAc soluble fraction of Bletilla striata by various chromatographic techniques, such as silica gel, ODS, Sephadex LH-20, RP-HPLC. Their structures were identified by spectroscopic methods and physicochemical properties, as 5-hydroxy-2-(p-hydroxybenzyl)- 3- methoxybibenzyl(1), shancigusins B(2), shanciguol(3),arundinan(4), 3',5-dihydroxy-2,4-di(p-hydroxybenzyl)-3-methoxybibenzyl(5), arundin(6), 3,3'-dihydroxy-2-(p-hydroxybenzyl)-5-methoxybibenzyl(7), 3, 3'-dihydroxy-2', 6'-bis(p-hydroxybenzyl)-5-methoxybibenzyl(8), 7-hydroxy-2,4-dimethoxyphenanthrene(9), bleformin B(10),nudol(11), 3,7-dihydroxy-2, 4-dimethoxyphenanthrene(12), 2, 7-dihydroxy-4-methoxy-9,10-dihydrophenathrene(13), bleformin D(14), 4,4'-dimethoxy-9,10-dyhydro-[6,1'-biphenanthrene]-2,2',7,7'-tetraol(15),gymconopin C(16),(2,3-trans)-2-(4-hydroxy-3-methoxyphenyl)-3-hydroxymethyl-10-methoxy-2,3,4,5-tetrahydro-phenanthro[2,1-b]furan-7-ol(17),shanciol(18). Among them, compound 1 was a new compound, Compounds 2-6,9,15-18 were isolated from this genus for the first time.
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Affiliation(s)
- Xian-Jie Ma
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Bao-Song Cui
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Shao-Wei Han
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Shuai Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
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15
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Kim MH, Im YJ, Kil HK, Han SW, Joe YE, Lee JH. Impact of caudal block on postoperative complications in children undergoing tubularised incised plate urethroplasty for hypospadias repair: a retrospective cohort study. Anaesthesia 2016; 71:773-8. [PMID: 27156500 DOI: 10.1111/anae.13463] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/21/2016] [Indexed: 11/26/2022]
Abstract
This study aimed to assess the association between caudal block and postoperative complications after tubularised incised plate urethroplasty. The medical records of 388 paediatric patients who underwent urethroplasty at a tertiary medical centre were analysed retrospectively. Among the 342 patients included, 216 patients received a caudal block and 72 (21.1%) patients suffered surgical complications. The number of patients having surgical complications was significantly greater among patients who received a caudal block than among patients who did not receive a caudal block (53 (24.5%) versus 19 (15.1%), respectively, p = 0.04). Based on multivariate logistic regression analysis, duration of surgery, caudal block and hypospadias types were independent risk factors for the surgical complications. Patients with caudal block had an odds ratio of 2.1 (95% CI, 1.14-3.81, p = 0.018) for the development of postoperative complications compared with patients without caudal block. This analysis demonstrates that caudal block is associated with surgical complications after tubularised incised plate urethroplasty.
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Affiliation(s)
- M H Kim
- Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Y J Im
- Department of Urology, Seoul National University Children's Hospital, Seoul, Republic of Korea
| | - H K Kil
- Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - S W Han
- Department of Urology, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Y E Joe
- Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - J H Lee
- Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
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16
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Jang JE, Kim HP, Lee SH, Lee DW, Lim YJ, Han SW, Kim TY. Abstract A28: NFATC3-PLA2G15 fusion transcript identified by RNA-sequencing promotes tumor progression in colorectal cancer cells. Mol Cancer Ther 2015. [DOI: 10.1158/1535-7163.targ-15-a28] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
In order to identify novel fusion transcripts in colorectal cancer, we carried out paired-end RNA sequencing in 28 human colorectal cancer cell lines. Fusion transcript candidates were identified using ChimeraScan and FusionMap tools. We obtained 1380 candidates having 4 or more read counts and spanning reads. Among the candidates, we selected 27 candidates for validation which harbors genes related to the Wnt signaling pathway or kinases according to KEGG or DAVID. After the targeted gene filtering step, validation using RT-PCR with fusion specific primers finally resulted in 2 intra- and 1 inter-fusion transcripts. Intra-fusion transcripts were NFATC3-PLA2G15 and AKAP13-PDE8A and inter-fusion transcript was KRT8-PKM2 each identified in colo-320, SW-480 and SNU-1235, respectively. The fusion junctions were confirmed by Sanger sequencing. NFATC3-PLA2G15 fusion transcripts consisted of exon 1-9 of NFATC3 (nuclear factor of activated T-cells, cytoplasmic 3) gene and exon 2-6 of the PLA2G15 (Phospholipase A2, Group 5) gene and both located on the same chromosome 16q. NFATC3 is known as transcription factor in the Wnt signaling pathway and regulates function of the target genes like cell proliferation, invasion and epithelial-to-mesenchymal transition (EMT). Under the experiments using siRNA in the colo-320 cell carrying fusion transcript, knockdown of the NFATC3-PLA2G15 fusion transcript decreased mRNA and protein expression of mesenchymal markers, namely vimentin (VIM), Twist-related protein 1 (TWIST1) and fibronectin (FN), and increased epithelial markers, E-cadherin (CDH1) and claudin-1 (CLDN1). Fusion transcripts knockdown also led to decrease of the invasion ability regulated by above markers. Moreover, soft agar assay showed inhibition of colony formation after fusion transcript knockdown. Fusion transcript downregulation also resulted in decrease of cell proliferation and mRNA and protein expression of cyclin D but increase in p27 level. The knockdown did not have influence in the fusion negative cell line. Collectively, these results suggest that the NFATC3-PLA2G15 fusion transcript is involved in invasion and proliferation of colorectal cancer cells.
Citation Format: JE Jang, HP Kim, SH Lee, DW Lee, YJ Lim, SW Han, TY Kim. NFATC3-PLA2G15 fusion transcript identified by RNA-sequencing promotes tumor progression in colorectal cancer cells. [abstract]. In: Proceedings of the AACR-NCI-EORTC International Conference: Molecular Targets and Cancer Therapeutics; 2015 Nov 5-9; Boston, MA. Philadelphia (PA): AACR; Mol Cancer Ther 2015;14(12 Suppl 2):Abstract nr A28.
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Affiliation(s)
- JE Jang
- 1Cancer Research Institute Seoul National University College of Medicine, seoul, Korea, Republic of
| | - HP Kim
- 1Cancer Research Institute Seoul National University College of Medicine, seoul, Korea, Republic of
| | - SH Lee
- 1Cancer Research Institute Seoul National University College of Medicine, seoul, Korea, Republic of
| | - DW Lee
- 2Department of Internal Medicine, Seoul National University Hospital, seoul, Korea, Republic of
| | - YJ Lim
- 2Department of Internal Medicine, Seoul National University Hospital, seoul, Korea, Republic of
| | - SW Han
- 2Department of Internal Medicine, Seoul National University Hospital, seoul, Korea, Republic of
| | - TY Kim
- 2Department of Internal Medicine, Seoul National University Hospital, seoul, Korea, Republic of
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Kang JY, Song SH, Yun J, Jeon MS, Kim HP, Han SW, Kim TY. Disruption of CTCF/cohesin-mediated high-order chromatin structures by DNA methylation downregulates PTGS2 expression. Oncogene 2015; 34:5677-84. [PMID: 25703332 DOI: 10.1038/onc.2015.17] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Revised: 12/15/2014] [Accepted: 01/16/2015] [Indexed: 12/25/2022]
Abstract
The CCCTC-binding factor (CTCF)/cohesin complex regulates gene transcription via high-order chromatin organization of the genome. De novo methylation of CpG islands in the promoter region is an epigenetic hallmark of gene silencing in cancer. Although the CTCF/cohesin complex preferentially targets hypomethylated DNA, it remains unclear whether the CTCF/cohesin-mediated high-order chromatin structure is affected by DNA methylation during tumorigenesis. We found that DNA methylation downregulates the expression of prostaglandin-endoperoxide synthase 2 (PTGS2), which is an inducible, rate-limiting enzyme for prostaglandin synthesis, by disrupting CTCF/cohesin-mediated chromatin looping. We show that the CTCF/cohesin complex is enriched near a CpG island associated with PTGS2 and that the PTGS2 locus forms chromatin loops through methylation-sensitive binding of the CTCF/cohesin complex. DNA methylation abolishes the association of the CTCF/cohesin complex with the PTGS2 CpG island. Disruption of chromatin looping by DNA methylation abrogates the enrichment of transcriptional components, such as positive elongation factor b, at the transcriptional start site of the PTGS2 locus. These alterations result in the downregulation of PTGS2. Our results provide evidence that CTCF/cohesin-mediated chromatin looping of the PTGS2 locus is dynamically influenced by the DNA methylation status.
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Affiliation(s)
- J Y Kang
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - S H Song
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - J Yun
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - M S Jeon
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - H P Kim
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - S W Han
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - T Y Kim
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
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18
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Jin Z, Park C, Song KJ, Kang S, Ko KE, Park C, Ko RK, Han SW. Micro-Structural Properties of YBa2Cu3O(7-x)/ZnO Nanorods on SrTiO3. J Nanosci Nanotechnol 2015; 15:642-646. [PMID: 26328417 DOI: 10.1166/jnn.2015.8326] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We examined the local structural and the interfacial properties of YBa2Cu3O(7-x) (YBCO)/ZnO nanorods on SrTiO3 (STO) substrates using various measurements. Vertically aligned ZnO nanorods were synthesized on STO substrates using a catalyst-free metal-organic chemical vapor deposition. YBCO films were deposited ex-situ on the ZnO nanorods/STO templates using a DC magnetron sputtering deposition. X-ray diffraction revealed that the YBCO films were crystallized along their c-axes on the ZnO nanorods/STO templates. Transmission electron microscopy measurements demonstrated that YBCO filled the space between ZnO nanorods and that both interfaces of YBCO/ZnO nanorods and ZnO nanorods/STO were quite clean with no disorder. Polarization-dependent extended X-ray absorption fine structure measurements at the Cu K edge showed extra disorder in the CuO2 planes of YBCO/ZnO nanorods/STO, compared with that of YBCO/STO. The superconductivity transition temperature (T(c)) of YBCO/ZnO nanorods/STO was approximately 50 K whereas that of YBCO/STO was 93 K. The decrease of T(c) of YBCO/ZnO nanorods/STO was ascribed to the structural disorder of CuO2 planes as well as grain boundaries in the YBCO films.
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19
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Wang C, Han SW, Cui BS, Wang XJ, Li S. [Chemical constituents from Pleione bulbocodioides]. Zhongguo Zhong Yao Za Zhi 2014; 39:442-447. [PMID: 24946545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Fourteen compoumds were isolated from the ethyl acetate portion of the 95% ethanolic extract of Pleione bulbocodioides by a combination of various chromatographic techniques including silica gel, ODS, macroporous adsorbent resin, Sephadex LH-20, and preparative HPLC, of which ten compoumds were phenanthrenes and dihydrophenanthrenes, two compoumds were bibenzyls, one was lignan and a sterol. Their structures were identified on the basis of spectroscopic data as monbarbatain A(1), 2, 7, 2'-trihy-droxy-4, 4', 7'-trimethoxy-1, 1'- biphenanthrene(2), blestriarene A(3), pleionesin B(4), shanciol H(5), 17-hydroxy-7'-(4'-hy-droxy-3 '-methoxyphenyl)- 4-methoxy-9, 10, 7', 8'-tetrahydrophenanthro[2, 3-b]furan-8'-yl methyl acetate(6), 1-p-hydroxybenzyl-4-methoxy phenanthrene-2, 7-diol(7), 1-p-hydroxybenzyl-4-met-hoxy-9, 10-dihydrophenanthrene-2, 7-diol(8), hircinol(9), coelonin( 10), gigantol(11), batatasin 11 (12), syringaresinol(13) and ergosta4, 6, 8 ( 14) , 22-tetraen-3-one (14). Compounds 1-3, 9, 13 and 14 were isolated from this genus for the first time.
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Choi SW, Kim MK, Han SW, Han SH, Lee BK, Lee SU, Hur SH, Lim SW, Moon KW, Lee SG, Lee SH, Oh SK, Chea JG, Joo SJ, Jo MC, Hong KS, Ryu KH. Apparent treatment-resistant hypertension among elderly Korean hypertensives: an insight from the HIT registry. J Hum Hypertens 2013; 28:201-5. [PMID: 23985877 DOI: 10.1038/jhh.2013.76] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2013] [Revised: 07/09/2013] [Accepted: 07/10/2013] [Indexed: 11/09/2022]
Abstract
The aim of this study was to determine the clinical characteristics of patients with resistant hypertension (RH) and predictors among elderly Korean hypertensives. This prospective, multi-center, observational study evaluated 2439 elderly hypertensive patients between December 2008 and November 2011, who visited secondary hypertension clinics for high blood pressure (BP). Patients were categorized as resistant if their BP was ≥140/90 mm Hg and if they reported using antihypertensive medications from three different drug classes, including a diuretic or drugs from ≥4 antihypertensive drug classes, regardless of BP. Characteristics of patients with RH were compared with those of patients who were controlled with one or two antihypertensive medications after 6-month antihypertensive treatment. In comparison with 837 patients with non-RH, 404 patients with RH were more likely to be aware of their status of high BP before enrollment and have a high baseline systolic BP ≥160 mm Hg, microalbuminuria, high body mass index (BMI) ≥24 kg m(-2) and diabetes mellitus (DM). In drug-naive patients, awareness of hypertension at baseline was the only independent predictor for RH. In elderly Korean hypertensives, BMI (≥24 kg m(-2)), baseline systolic BP (≥160 mm Hg), microalbuminuria, DM and awareness of hypertension showed an association with RH.
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Affiliation(s)
- S-W Choi
- Division of Cardiology, Dongtan Sacred Heart Hospital, Hallym University, Hwaseong, Korea
| | - M-K Kim
- Division of Cardiology, Dongtan Sacred Heart Hospital, Hallym University, Hwaseong, Korea
| | - S W Han
- Department of Internal Medicine, Hangang Sacred Heart Hospital, Hallym University, Seoul, Korea
| | - S H Han
- Division of Cardiology, Gachon University Gil Hospital, Incheon, Korea
| | - B K Lee
- Division of Cardiology, Gangnam Severance Hospital, Yonsei University, Seoul, Korea
| | - S U Lee
- Department of Internal Medicine, Gwangju Christian Hospital, Gwangju, Korea
| | - S-H Hur
- Division of Cardiology, Daejeon St. Mary's Hospital, The Catholic University of Korea, Daejeon, Korea
| | - S W Lim
- Division of Cardiology, Bundang Cha Hospital, Cha University, Seongnam, Korea
| | - K W Moon
- Division of Cardiology, St. Vincent's Hospital, The Catholic University of Korea, Suwon, Korea
| | - S G Lee
- Division of Cardiology, Ulsan University Hospital, Ulsan, Korea
| | - S H Lee
- Department of Internal Medicine, Dongkang Medical Center, Ulsan, Korea
| | - S K Oh
- Division of Cardiology, Wonkwang University School of Medicine and Hospital, Iksan, Korea
| | - J G Chea
- Division of Cardiology, Chonbuk National University Hospital, Jeonju, Korea
| | - S J Joo
- Division of Cardiology, Jeju National University Hospital, Jeju, Korea
| | - M C Jo
- Division of Cardiology, Chungbuk National University Hospital, Cheongju, Korea
| | - K-S Hong
- Division of Cardiology, Chooncheon Sacred Heart Hospital, Hallym University, Chooncheon, Korea
| | - K-H Ryu
- Division of Cardiology, Dongtan Sacred Heart Hospital, Hallym University, Hwaseong, Korea
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Jeong ES, Park C, Jin Z, Yoo J, Yi GC, Han SW. Orientation-dependent local structural properties of Zn(1-x)Mg(x)O nanorods studied by extended X-ray absorption fine structure. J Nanosci Nanotechnol 2013; 13:1880-1883. [PMID: 23755611 DOI: 10.1166/jnn.2013.6966] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The orientation-dependent structural properties of Zn(1-x)Mg(x)O nanorods with different Mg concentrations were investigated quantitatively using polarization-dependent extended X-ray absorption fine structure (EXAFS) measurements at the Zn K edge. Vertically-aligned Zn(1-x)Mg(x)O nanorods were synthesized on Si substrates using catalyst free metal organic chemical vapor deposition. Polarization-dependent EXAFS measurements showed that Mg ions mainly occupied the Zn sites of the nanorods. EXAFS revealed that the distance between Zn-Mg pairs in all directions is - 0.2 angstroms shorter than that of Zn-Zn pairs and that there is a substantial amount of disorder in the Mg sites of the nanorods, independent of Mg concentrations.
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Affiliation(s)
- E S Jeong
- Department of Physics Education, Institute of Fusion Science, Chonbuk National University, Jeonju 561-756, Korea
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22
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Im SA, Oh DY, Keam B, Lee KS, Ahn JH, Sohn J, Ahn JS, Kim JH, Lee MH, Lee KE, Kim HJ, Lee KH, Han SW, Kim SY, Kim SB, Im YH, Ro J, Park HS. Abstract PD09-05: Single nucleotide polymorphism of XRCC1 which participates in DNA repair mechanism predicts clinical outcome in relapsed or metastatic breast cancer patients treated with S1 and oxaliplatin chemotherapy: Results from multicenter prospective study (TORCH_KCSG BR07-03). Cancer Res 2012. [DOI: 10.1158/0008-5472.sabcs12-pd09-05] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: S1 and oxaliplatin (SOX) combination chemotherapy is an effective regimen in anthracycline and taxane pretreated metastatic breast cancer (MBC) patients with manageable toxicities (KCSG BR07-03, SABCS 2011 #Abst P3-16-06). The aim of this study was to investigate the association of the single nucleotide polymorphisms (SNPs) and clinical outcome in MBC treated with SOX chemotherapy.
Patients and Methods: A total of 87 MBC patients previously treated with or resistant to anthracycline and taxane chemotherapy were enrolled in this prospective multicenter trial. The patients received S-1 80mg/m2/day (day 1–14) and oxaliplatin 130 mg/m2 (day 1) every 3 weeks till progression. Among the 87 patients, 77 patients were available for SNP analysis. Germline DNA from peripheral blood (PB) mononuclear cells was extracted. SNPs in 4 genes from pathways that may influence cellular sensitivity to S1 and oxaliplatin (TS, ERCC, XPD, and XRCC) were genotyped from PB sample using PCR-restriction fragment length polymorphism.
Results: Overall response rate (RR) was 38.5% (95% CI: 27.7–49.3) and disease control rate was 67.9% (95% CI:57.5–78.3) to SOX. Median time-to-progression (TTP) and overall survival (OS) were 6.0 mo (95% CI: 5.1–6.9 mo) and 19.4 mo (95% CI: not estimated), respectively. XRCC1 Arg194Trp SNP which participates in DNA repair mechanism showed correlation with the clinical outcome. RR was tend to higher in XRCC1 Arg194Trp CC genotype compared with CT or TT genotype (50.0 % vs 35.1% or 12.5%, P = 0.121). TTP of patients with CC genotype in XRCC1 Arg194Trp was significantly longer than the TTP of patients with CT or TT genotype (median TTP: 6.4 mo in CC, 5.9 mo in CT, 3.0 mo in TT, P = 0.007) as well as overall survival (OS) (median OS: not reached in CC, 13.9 mo in CT, 7.1 mo in TT, P = 0.006). After adjusting for hormone receptor status, performance status, and visceral involvement, prognostic value of XRCC1 Arg194Trp SNP remained significant (Hazard Ratio=1.322 and 4.484, P = 0.016). Other SNPs were not significantly associated with survival or toxicities.
Conclusion: XRCC1 Arg194Trp SNP is associated with clinical outcome of MBC patients treated with SOX chemotherapy. Further studies of the relationship between germline polymorphisms in XRCC1 and functional mechanism researches are warranted.
Citation Information: Cancer Res 2012;72(24 Suppl):Abstract nr PD09-05.
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Affiliation(s)
- S-A Im
- Seoul National University Hospital, Seoul, Korea; National Cancer Center, Goyang, Korea; Asan Medical Center, Seoul, Korea; Yonsei University College of Medicine, Severance Hospital, Seoul, Korea; Samsung Medical Center, Seoul, Korea; Seoul National University Bundang Hospital, Seongnam, Korea; Inha University Hospital, Incheon, Korea; Ewha Womans University Medical Center, Seoul, Korea; Hallym University Sacred Heart Hospital, Anyang, Korea; Kyung-Hee University Hospital, Seoul, Korea; Soon Chun Hyang University Hospital, Seoul, Korea
| | - D-Y Oh
- Seoul National University Hospital, Seoul, Korea; National Cancer Center, Goyang, Korea; Asan Medical Center, Seoul, Korea; Yonsei University College of Medicine, Severance Hospital, Seoul, Korea; Samsung Medical Center, Seoul, Korea; Seoul National University Bundang Hospital, Seongnam, Korea; Inha University Hospital, Incheon, Korea; Ewha Womans University Medical Center, Seoul, Korea; Hallym University Sacred Heart Hospital, Anyang, Korea; Kyung-Hee University Hospital, Seoul, Korea; Soon Chun Hyang University Hospital, Seoul, Korea
| | - B Keam
- Seoul National University Hospital, Seoul, Korea; National Cancer Center, Goyang, Korea; Asan Medical Center, Seoul, Korea; Yonsei University College of Medicine, Severance Hospital, Seoul, Korea; Samsung Medical Center, Seoul, Korea; Seoul National University Bundang Hospital, Seongnam, Korea; Inha University Hospital, Incheon, Korea; Ewha Womans University Medical Center, Seoul, Korea; Hallym University Sacred Heart Hospital, Anyang, Korea; Kyung-Hee University Hospital, Seoul, Korea; Soon Chun Hyang University Hospital, Seoul, Korea
| | - KS Lee
- Seoul National University Hospital, Seoul, Korea; National Cancer Center, Goyang, Korea; Asan Medical Center, Seoul, Korea; Yonsei University College of Medicine, Severance Hospital, Seoul, Korea; Samsung Medical Center, Seoul, Korea; Seoul National University Bundang Hospital, Seongnam, Korea; Inha University Hospital, Incheon, Korea; Ewha Womans University Medical Center, Seoul, Korea; Hallym University Sacred Heart Hospital, Anyang, Korea; Kyung-Hee University Hospital, Seoul, Korea; Soon Chun Hyang University Hospital, Seoul, Korea
| | - J-H Ahn
- Seoul National University Hospital, Seoul, Korea; National Cancer Center, Goyang, Korea; Asan Medical Center, Seoul, Korea; Yonsei University College of Medicine, Severance Hospital, Seoul, Korea; Samsung Medical Center, Seoul, Korea; Seoul National University Bundang Hospital, Seongnam, Korea; Inha University Hospital, Incheon, Korea; Ewha Womans University Medical Center, Seoul, Korea; Hallym University Sacred Heart Hospital, Anyang, Korea; Kyung-Hee University Hospital, Seoul, Korea; Soon Chun Hyang University Hospital, Seoul, Korea
| | - J Sohn
- Seoul National University Hospital, Seoul, Korea; National Cancer Center, Goyang, Korea; Asan Medical Center, Seoul, Korea; Yonsei University College of Medicine, Severance Hospital, Seoul, Korea; Samsung Medical Center, Seoul, Korea; Seoul National University Bundang Hospital, Seongnam, Korea; Inha University Hospital, Incheon, Korea; Ewha Womans University Medical Center, Seoul, Korea; Hallym University Sacred Heart Hospital, Anyang, Korea; Kyung-Hee University Hospital, Seoul, Korea; Soon Chun Hyang University Hospital, Seoul, Korea
| | - JS Ahn
- Seoul National University Hospital, Seoul, Korea; National Cancer Center, Goyang, Korea; Asan Medical Center, Seoul, Korea; Yonsei University College of Medicine, Severance Hospital, Seoul, Korea; Samsung Medical Center, Seoul, Korea; Seoul National University Bundang Hospital, Seongnam, Korea; Inha University Hospital, Incheon, Korea; Ewha Womans University Medical Center, Seoul, Korea; Hallym University Sacred Heart Hospital, Anyang, Korea; Kyung-Hee University Hospital, Seoul, Korea; Soon Chun Hyang University Hospital, Seoul, Korea
| | - JH Kim
- Seoul National University Hospital, Seoul, Korea; National Cancer Center, Goyang, Korea; Asan Medical Center, Seoul, Korea; Yonsei University College of Medicine, Severance Hospital, Seoul, Korea; Samsung Medical Center, Seoul, Korea; Seoul National University Bundang Hospital, Seongnam, Korea; Inha University Hospital, Incheon, Korea; Ewha Womans University Medical Center, Seoul, Korea; Hallym University Sacred Heart Hospital, Anyang, Korea; Kyung-Hee University Hospital, Seoul, Korea; Soon Chun Hyang University Hospital, Seoul, Korea
| | - MH Lee
- Seoul National University Hospital, Seoul, Korea; National Cancer Center, Goyang, Korea; Asan Medical Center, Seoul, Korea; Yonsei University College of Medicine, Severance Hospital, Seoul, Korea; Samsung Medical Center, Seoul, Korea; Seoul National University Bundang Hospital, Seongnam, Korea; Inha University Hospital, Incheon, Korea; Ewha Womans University Medical Center, Seoul, Korea; Hallym University Sacred Heart Hospital, Anyang, Korea; Kyung-Hee University Hospital, Seoul, Korea; Soon Chun Hyang University Hospital, Seoul, Korea
| | - KE Lee
- Seoul National University Hospital, Seoul, Korea; National Cancer Center, Goyang, Korea; Asan Medical Center, Seoul, Korea; Yonsei University College of Medicine, Severance Hospital, Seoul, Korea; Samsung Medical Center, Seoul, Korea; Seoul National University Bundang Hospital, Seongnam, Korea; Inha University Hospital, Incheon, Korea; Ewha Womans University Medical Center, Seoul, Korea; Hallym University Sacred Heart Hospital, Anyang, Korea; Kyung-Hee University Hospital, Seoul, Korea; Soon Chun Hyang University Hospital, Seoul, Korea
| | - HJ Kim
- Seoul National University Hospital, Seoul, Korea; National Cancer Center, Goyang, Korea; Asan Medical Center, Seoul, Korea; Yonsei University College of Medicine, Severance Hospital, Seoul, Korea; Samsung Medical Center, Seoul, Korea; Seoul National University Bundang Hospital, Seongnam, Korea; Inha University Hospital, Incheon, Korea; Ewha Womans University Medical Center, Seoul, Korea; Hallym University Sacred Heart Hospital, Anyang, Korea; Kyung-Hee University Hospital, Seoul, Korea; Soon Chun Hyang University Hospital, Seoul, Korea
| | - K-H Lee
- Seoul National University Hospital, Seoul, Korea; National Cancer Center, Goyang, Korea; Asan Medical Center, Seoul, Korea; Yonsei University College of Medicine, Severance Hospital, Seoul, Korea; Samsung Medical Center, Seoul, Korea; Seoul National University Bundang Hospital, Seongnam, Korea; Inha University Hospital, Incheon, Korea; Ewha Womans University Medical Center, Seoul, Korea; Hallym University Sacred Heart Hospital, Anyang, Korea; Kyung-Hee University Hospital, Seoul, Korea; Soon Chun Hyang University Hospital, Seoul, Korea
| | - SW Han
- Seoul National University Hospital, Seoul, Korea; National Cancer Center, Goyang, Korea; Asan Medical Center, Seoul, Korea; Yonsei University College of Medicine, Severance Hospital, Seoul, Korea; Samsung Medical Center, Seoul, Korea; Seoul National University Bundang Hospital, Seongnam, Korea; Inha University Hospital, Incheon, Korea; Ewha Womans University Medical Center, Seoul, Korea; Hallym University Sacred Heart Hospital, Anyang, Korea; Kyung-Hee University Hospital, Seoul, Korea; Soon Chun Hyang University Hospital, Seoul, Korea
| | - S-Y Kim
- Seoul National University Hospital, Seoul, Korea; National Cancer Center, Goyang, Korea; Asan Medical Center, Seoul, Korea; Yonsei University College of Medicine, Severance Hospital, Seoul, Korea; Samsung Medical Center, Seoul, Korea; Seoul National University Bundang Hospital, Seongnam, Korea; Inha University Hospital, Incheon, Korea; Ewha Womans University Medical Center, Seoul, Korea; Hallym University Sacred Heart Hospital, Anyang, Korea; Kyung-Hee University Hospital, Seoul, Korea; Soon Chun Hyang University Hospital, Seoul, Korea
| | - SB Kim
- Seoul National University Hospital, Seoul, Korea; National Cancer Center, Goyang, Korea; Asan Medical Center, Seoul, Korea; Yonsei University College of Medicine, Severance Hospital, Seoul, Korea; Samsung Medical Center, Seoul, Korea; Seoul National University Bundang Hospital, Seongnam, Korea; Inha University Hospital, Incheon, Korea; Ewha Womans University Medical Center, Seoul, Korea; Hallym University Sacred Heart Hospital, Anyang, Korea; Kyung-Hee University Hospital, Seoul, Korea; Soon Chun Hyang University Hospital, Seoul, Korea
| | - Y-H Im
- Seoul National University Hospital, Seoul, Korea; National Cancer Center, Goyang, Korea; Asan Medical Center, Seoul, Korea; Yonsei University College of Medicine, Severance Hospital, Seoul, Korea; Samsung Medical Center, Seoul, Korea; Seoul National University Bundang Hospital, Seongnam, Korea; Inha University Hospital, Incheon, Korea; Ewha Womans University Medical Center, Seoul, Korea; Hallym University Sacred Heart Hospital, Anyang, Korea; Kyung-Hee University Hospital, Seoul, Korea; Soon Chun Hyang University Hospital, Seoul, Korea
| | - J Ro
- Seoul National University Hospital, Seoul, Korea; National Cancer Center, Goyang, Korea; Asan Medical Center, Seoul, Korea; Yonsei University College of Medicine, Severance Hospital, Seoul, Korea; Samsung Medical Center, Seoul, Korea; Seoul National University Bundang Hospital, Seongnam, Korea; Inha University Hospital, Incheon, Korea; Ewha Womans University Medical Center, Seoul, Korea; Hallym University Sacred Heart Hospital, Anyang, Korea; Kyung-Hee University Hospital, Seoul, Korea; Soon Chun Hyang University Hospital, Seoul, Korea
| | - H-S Park
- Seoul National University Hospital, Seoul, Korea; National Cancer Center, Goyang, Korea; Asan Medical Center, Seoul, Korea; Yonsei University College of Medicine, Severance Hospital, Seoul, Korea; Samsung Medical Center, Seoul, Korea; Seoul National University Bundang Hospital, Seongnam, Korea; Inha University Hospital, Incheon, Korea; Ewha Womans University Medical Center, Seoul, Korea; Hallym University Sacred Heart Hospital, Anyang, Korea; Kyung-Hee University Hospital, Seoul, Korea; Soon Chun Hyang University Hospital, Seoul, Korea
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Pereira Lopes FR, Martin PKM, Frattini F, Biancalana A, Almeida FM, Tomaz MA, Melo PA, Borojevic R, Han SW, Martinez AMB. Double gene therapy with granulocyte colony-stimulating factor and vascular endothelial growth factor acts synergistically to improve nerve regeneration and functional outcome after sciatic nerve injury in mice. Neuroscience 2012; 230:184-97. [PMID: 23103791 DOI: 10.1016/j.neuroscience.2012.10.025] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2012] [Revised: 10/09/2012] [Accepted: 10/10/2012] [Indexed: 12/17/2022]
Abstract
Peripheral-nerve injuries are a common clinical problem and often result in long-term functional deficits. Reconstruction of peripheral-nerve defects is currently undertaken with nerve autografts. However, there is a limited availability of nerves that can be sacrificed and the functional recovery is never 100% satisfactory. We have previously shown that gene therapy with vascular endothelial growth factor (VEGF) significantly improved nerve regeneration, neuronal survival, and muscle activity. Our hypothesis is that granulocyte colony-stimulating factor (G-CSF) synergizes with VEGF to improve the functional outcome after sciatic nerve transection. The left sciatic nerves and the adjacent muscle groups of adult mice were exposed, and 50 or 100 μg (in 50 μl PBS) of VEGF and/or G-CSF genes was injected locally, just below the sciatic nerve, and transferred by electroporation. The sciatic nerves were transected and placed in an empty polycaprolactone (PCL) nerve guide, leaving a 3-mm gap to challenge nerve regeneration. After 6 weeks, the mice were perfused and the sciatic nerve, the dorsal root ganglion (DRG), the spinal cord and the gastrocnemius muscle were processed for light and transmission electron microscopy. Treated animals showed significant improvement in functional and histological analyses compared with the control group. However, the best results were obtained with the G-CSF+VEGF-treated animals: quantitative analysis of regenerated nerves showed a significant increase in the number of myelinated fibers and blood vessels, and the number of neurons in the DRG and motoneurons in the spinal cord was significantly higher. Motor function also showed that functional recovery occurred earlier in animals receiving G-CSF+VEGF-treatment. The gastrocnemius muscle showed an increase in weight and in the levels of creatine phosphokinase, suggesting an improvement of reinnervation and muscle activity. These results suggest that these two factors acted synergistically and optimized the nerve repair potential, improving regeneration after a transection lesion.
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Affiliation(s)
- F R Pereira Lopes
- Programa de Neurociência Básica e Clínica, Instituto de Ciências Biomédicas, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, RJ, Brazil
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24
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Han SW, Sa KH, Kim SI, Lee SI, Park YW, Lee SS, Yoo WH, Soe JS, Nam EJ, Lee J, Park JY, Kang YM. CCR5 gene polymorphism is a genetic risk factor for radiographic severity of rheumatoid arthritis. ACTA ACUST UNITED AC 2012; 80:416-23. [PMID: 22924548 DOI: 10.1111/j.1399-0039.2012.01955.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2012] [Revised: 07/11/2012] [Accepted: 08/06/2012] [Indexed: 11/29/2022]
Abstract
The chemokine receptor [C-C chemokine receptor 5 (CCR5)] is expressed on diverse immune effecter cells and has been implicated in the pathogenesis of rheumatoid arthritis (RA). This study sought to determine whether single-nucleotide polymorphisms (SNPs) in the CCR5 gene and their haplotypes were associated with susceptibility to and severity of RA. Three hundred fifty-seven patients with RA and 383 healthy unrelated controls were recruited. Using a pyrosequencing assay, we examined four polymorphisms -1118 CTAT(ins) (/del) (rs10577983), 303 A>G (rs1799987), 927 C>T (rs1800024), and 4838 G>T (rs1800874) of the CCR5 gene, which were distributed over the promoter region as well as the 5' and 3' untranslated regions. No significant difference in the genotype, allele, and haplotype frequencies of the four selected SNPs was observed between RA patients and controls. CCR5 polymorphisms of -1118 CTAT(del) (P = 0.012; corrected P = 0.048) and 303 A>G (P = 0.012; corrected P = 0.048) showed a significant association with radiographic severity in a recessive model, and, as a result of multivariate logistic regression analysis, were found to be an independent predictor of radiographic severity. When we separated the erosion score from the total Sharp score, the statistical significance of CCR5 polymorphisms showed an increase; -1118 CTAT(ins) (/del) (P = 0.007; corrected P = 0.028) and 303 A>G (P = 0.007; corrected P = 0.028). Neither SNPs nor haplotypes of the CCR5 gene showed a significant association with joint space narrowing score. These results indicate that genetic polymorphisms of CCR5 are an independent risk factor for radiographic severity denoted by modified Sharp score, particularly joint erosion in RA.
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Affiliation(s)
- S W Han
- Department of Internal Medicine, Daegu Fatima hospital, Daegu, Republic of Korea
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Im SA, Oh DY, Lee KS, Ahn JH, Shon J, Ahn JS, Kim JH, Han SW, Lee MH, Lee KE, Lee K, Kim HJ, Keam B, Kim SY, Kim SB, Im YH, Ro J, Park HS. P3-16-06: Phase II Trial of TS-1 in Combination with Oxaliplatin (SOX) in Patients with Metastatic Breast Cancer (MBC) Previously Treated with Anthracycline and Taxane Chemotherapy [TORCH] [Korean Cancer Study Group (KCSG) BR07-03]. Cancer Res 2011. [DOI: 10.1158/0008-5472.sabcs11-p3-16-06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background
Oxaliplatin, a platinum analogue, is an active drug in advanced anthracycline and taxane-pretreated breast cancer patients as a single agent and with 5-fluorouracil (5-FU) combination. TS-1 was developed by the scientific theory of both potentiating antitumor activity of 5-FU and reducing gastrointestinal toxicity. This trial was performed to evaluate the efficacy and safety of TS-1 in combination with oxaliplatin in metastatic breast cancer (MBC) patients previously treated with anthracycline and taxane chemotherapy.
Methods: Between October 2007 and October 2009, MBC patients were enrolled in this prospective multicenter trial. Eligible criteria included age ≥18 years, at least one measurable lesion, prior treatment with anthracycline and taxane chemotherapy, and ECOG Performance Status 0–2. TS-1 40 mg/m2 b.i.d. on days 1–14 with oxaliplatin 130 mg/m2 on day 1 were administered every 3 weeks till disease progression. Primary end-point was response rate, and secondary end-points were time-to-progression (TTP), overall survival (OS), duration of response (DOR) and toxicities. Response was evaluated every 6 weeks according to the RECIST criteria v. 1.0 and toxicity was assessed with NCICTCAE v.3.0.(ClinicalTrials.gov identifier NCT00527930).
Results: A total of 87 patients were enrolled. Median age was 48 years (range 30–71 years). Nineteen patients (21.8%) had de novo stage IV and 68 patients (78.2%) had recurrent disease. Thirty-five patients (40.2%) received two-lines of prior chemotherapy in palliative setting. Forty-eight patients (55.2%) had ≥ 3 disease sites. Fifty-four patients (62.1%) were hormone receptor positive, and 25 patients (28.7%) were triple negative. Five patients received prior anti-HER2 therapy. A total of 525 cycles were administered (median 6 cycles, range: 1 ∼ 22+ cycle). In per-protocol analysis, overall response rate was 38.5% (95% CI: 27.7−49.3) (CR 0%, PR 38.5%) and disease control rate (CR, PR, and SD) was 67.9% (95% CI: 57.5−78.3). Median TTP, OS, and DOR were 6.0 months (95% CI: 5.1−6.9 months), 19.4 months (95% CI: not estimated), 6.6 months (95% CI: 3.7−9.6 months), respectively. RR was not different by triple negativity (39.1% in TNBC vs. 38.2% in non-TNBC, P=0.361). TTP was not different according to the number of prior chemotherapy regimens. Reported grade 3 or 4 toxicities (per cycle) were neutropenia (10.3%), thrombocytopenia (5.5%), diarrhea (1.9%), vomiting (1.9%), and stomatitis (0.2%). There was no treatment-related death.
Conclusions: SOX is an effective regimen in anthracycline and taxane pretreated MBC patients with manageable toxicities.
Citation Information: Cancer Res 2011;71(24 Suppl):Abstract nr P3-16-06.
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Affiliation(s)
- S-A Im
- 1Seoul National University Hospital, Seoul, Republic of Korea; National Cancer Center, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Yonsei University College of Medicine, Severance Hospital, Seoul; Samsung Medical Center, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Inha University Hopsital, Incheon, Republic of Korea; Ewha Womans University Medical Center, Seoul, Republic of Korea; Hanlim University Pyungchon Hospital, Pyungchon, Republic of Korea; Kyung Hee University Hopital, Seoul, Republic of Korea; Soon Chun Hyang University Hospital, Seoul, Republic of Korea
| | - D-Y Oh
- 1Seoul National University Hospital, Seoul, Republic of Korea; National Cancer Center, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Yonsei University College of Medicine, Severance Hospital, Seoul; Samsung Medical Center, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Inha University Hopsital, Incheon, Republic of Korea; Ewha Womans University Medical Center, Seoul, Republic of Korea; Hanlim University Pyungchon Hospital, Pyungchon, Republic of Korea; Kyung Hee University Hopital, Seoul, Republic of Korea; Soon Chun Hyang University Hospital, Seoul, Republic of Korea
| | - KS Lee
- 1Seoul National University Hospital, Seoul, Republic of Korea; National Cancer Center, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Yonsei University College of Medicine, Severance Hospital, Seoul; Samsung Medical Center, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Inha University Hopsital, Incheon, Republic of Korea; Ewha Womans University Medical Center, Seoul, Republic of Korea; Hanlim University Pyungchon Hospital, Pyungchon, Republic of Korea; Kyung Hee University Hopital, Seoul, Republic of Korea; Soon Chun Hyang University Hospital, Seoul, Republic of Korea
| | - J-H Ahn
- 1Seoul National University Hospital, Seoul, Republic of Korea; National Cancer Center, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Yonsei University College of Medicine, Severance Hospital, Seoul; Samsung Medical Center, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Inha University Hopsital, Incheon, Republic of Korea; Ewha Womans University Medical Center, Seoul, Republic of Korea; Hanlim University Pyungchon Hospital, Pyungchon, Republic of Korea; Kyung Hee University Hopital, Seoul, Republic of Korea; Soon Chun Hyang University Hospital, Seoul, Republic of Korea
| | - J Shon
- 1Seoul National University Hospital, Seoul, Republic of Korea; National Cancer Center, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Yonsei University College of Medicine, Severance Hospital, Seoul; Samsung Medical Center, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Inha University Hopsital, Incheon, Republic of Korea; Ewha Womans University Medical Center, Seoul, Republic of Korea; Hanlim University Pyungchon Hospital, Pyungchon, Republic of Korea; Kyung Hee University Hopital, Seoul, Republic of Korea; Soon Chun Hyang University Hospital, Seoul, Republic of Korea
| | - JS Ahn
- 1Seoul National University Hospital, Seoul, Republic of Korea; National Cancer Center, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Yonsei University College of Medicine, Severance Hospital, Seoul; Samsung Medical Center, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Inha University Hopsital, Incheon, Republic of Korea; Ewha Womans University Medical Center, Seoul, Republic of Korea; Hanlim University Pyungchon Hospital, Pyungchon, Republic of Korea; Kyung Hee University Hopital, Seoul, Republic of Korea; Soon Chun Hyang University Hospital, Seoul, Republic of Korea
| | - JH Kim
- 1Seoul National University Hospital, Seoul, Republic of Korea; National Cancer Center, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Yonsei University College of Medicine, Severance Hospital, Seoul; Samsung Medical Center, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Inha University Hopsital, Incheon, Republic of Korea; Ewha Womans University Medical Center, Seoul, Republic of Korea; Hanlim University Pyungchon Hospital, Pyungchon, Republic of Korea; Kyung Hee University Hopital, Seoul, Republic of Korea; Soon Chun Hyang University Hospital, Seoul, Republic of Korea
| | - SW Han
- 1Seoul National University Hospital, Seoul, Republic of Korea; National Cancer Center, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Yonsei University College of Medicine, Severance Hospital, Seoul; Samsung Medical Center, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Inha University Hopsital, Incheon, Republic of Korea; Ewha Womans University Medical Center, Seoul, Republic of Korea; Hanlim University Pyungchon Hospital, Pyungchon, Republic of Korea; Kyung Hee University Hopital, Seoul, Republic of Korea; Soon Chun Hyang University Hospital, Seoul, Republic of Korea
| | - MH Lee
- 1Seoul National University Hospital, Seoul, Republic of Korea; National Cancer Center, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Yonsei University College of Medicine, Severance Hospital, Seoul; Samsung Medical Center, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Inha University Hopsital, Incheon, Republic of Korea; Ewha Womans University Medical Center, Seoul, Republic of Korea; Hanlim University Pyungchon Hospital, Pyungchon, Republic of Korea; Kyung Hee University Hopital, Seoul, Republic of Korea; Soon Chun Hyang University Hospital, Seoul, Republic of Korea
| | - KE Lee
- 1Seoul National University Hospital, Seoul, Republic of Korea; National Cancer Center, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Yonsei University College of Medicine, Severance Hospital, Seoul; Samsung Medical Center, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Inha University Hopsital, Incheon, Republic of Korea; Ewha Womans University Medical Center, Seoul, Republic of Korea; Hanlim University Pyungchon Hospital, Pyungchon, Republic of Korea; Kyung Hee University Hopital, Seoul, Republic of Korea; Soon Chun Hyang University Hospital, Seoul, Republic of Korea
| | - K Lee
- 1Seoul National University Hospital, Seoul, Republic of Korea; National Cancer Center, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Yonsei University College of Medicine, Severance Hospital, Seoul; Samsung Medical Center, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Inha University Hopsital, Incheon, Republic of Korea; Ewha Womans University Medical Center, Seoul, Republic of Korea; Hanlim University Pyungchon Hospital, Pyungchon, Republic of Korea; Kyung Hee University Hopital, Seoul, Republic of Korea; Soon Chun Hyang University Hospital, Seoul, Republic of Korea
| | - HJ Kim
- 1Seoul National University Hospital, Seoul, Republic of Korea; National Cancer Center, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Yonsei University College of Medicine, Severance Hospital, Seoul; Samsung Medical Center, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Inha University Hopsital, Incheon, Republic of Korea; Ewha Womans University Medical Center, Seoul, Republic of Korea; Hanlim University Pyungchon Hospital, Pyungchon, Republic of Korea; Kyung Hee University Hopital, Seoul, Republic of Korea; Soon Chun Hyang University Hospital, Seoul, Republic of Korea
| | - B Keam
- 1Seoul National University Hospital, Seoul, Republic of Korea; National Cancer Center, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Yonsei University College of Medicine, Severance Hospital, Seoul; Samsung Medical Center, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Inha University Hopsital, Incheon, Republic of Korea; Ewha Womans University Medical Center, Seoul, Republic of Korea; Hanlim University Pyungchon Hospital, Pyungchon, Republic of Korea; Kyung Hee University Hopital, Seoul, Republic of Korea; Soon Chun Hyang University Hospital, Seoul, Republic of Korea
| | - S-Y Kim
- 1Seoul National University Hospital, Seoul, Republic of Korea; National Cancer Center, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Yonsei University College of Medicine, Severance Hospital, Seoul; Samsung Medical Center, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Inha University Hopsital, Incheon, Republic of Korea; Ewha Womans University Medical Center, Seoul, Republic of Korea; Hanlim University Pyungchon Hospital, Pyungchon, Republic of Korea; Kyung Hee University Hopital, Seoul, Republic of Korea; Soon Chun Hyang University Hospital, Seoul, Republic of Korea
| | - SB Kim
- 1Seoul National University Hospital, Seoul, Republic of Korea; National Cancer Center, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Yonsei University College of Medicine, Severance Hospital, Seoul; Samsung Medical Center, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Inha University Hopsital, Incheon, Republic of Korea; Ewha Womans University Medical Center, Seoul, Republic of Korea; Hanlim University Pyungchon Hospital, Pyungchon, Republic of Korea; Kyung Hee University Hopital, Seoul, Republic of Korea; Soon Chun Hyang University Hospital, Seoul, Republic of Korea
| | - YH Im
- 1Seoul National University Hospital, Seoul, Republic of Korea; National Cancer Center, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Yonsei University College of Medicine, Severance Hospital, Seoul; Samsung Medical Center, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Inha University Hopsital, Incheon, Republic of Korea; Ewha Womans University Medical Center, Seoul, Republic of Korea; Hanlim University Pyungchon Hospital, Pyungchon, Republic of Korea; Kyung Hee University Hopital, Seoul, Republic of Korea; Soon Chun Hyang University Hospital, Seoul, Republic of Korea
| | - J Ro
- 1Seoul National University Hospital, Seoul, Republic of Korea; National Cancer Center, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Yonsei University College of Medicine, Severance Hospital, Seoul; Samsung Medical Center, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Inha University Hopsital, Incheon, Republic of Korea; Ewha Womans University Medical Center, Seoul, Republic of Korea; Hanlim University Pyungchon Hospital, Pyungchon, Republic of Korea; Kyung Hee University Hopital, Seoul, Republic of Korea; Soon Chun Hyang University Hospital, Seoul, Republic of Korea
| | - H-S Park
- 1Seoul National University Hospital, Seoul, Republic of Korea; National Cancer Center, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Yonsei University College of Medicine, Severance Hospital, Seoul; Samsung Medical Center, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Inha University Hopsital, Incheon, Republic of Korea; Ewha Womans University Medical Center, Seoul, Republic of Korea; Hanlim University Pyungchon Hospital, Pyungchon, Republic of Korea; Kyung Hee University Hopital, Seoul, Republic of Korea; Soon Chun Hyang University Hospital, Seoul, Republic of Korea
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Kim SH, Chang Y, Kim JH, Song HJ, Seo J, Kim SH, Han SW, Nam EJ, Choi TY, Lee SJ, Kim SK. Insular cortex is a trait marker for pain processing in fibromyalgia syndrome--blood oxygenation level-dependent functional magnetic resonance imaging study in Korea. Clin Exp Rheumatol 2011; 29:S19-S27. [PMID: 21813055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2010] [Accepted: 03/08/2011] [Indexed: 05/31/2023]
Abstract
OBJECTIVES To investigate the variability in cerebral activation according to pain intensity and the association between variability in cerebral activation and clinical features in patients with fibromyalgia syndrome (FMS) using functional magnetic resonance imaging (fMRI). METHODS Nineteen FMS female patients and 22 age-matched healthy female controls were enrolled in this study. Changes in cerebral activation area were measured using blood oxygenation level-dependent (BOLD) contrast fMRI after application of both medium and high pressure stimuli to the left thumbnail bed. RESULTS We identified the insular cortex (IC) and superior temporal gyrus (STG) as regions of interest (ROIs) in this analysis. Cerebral activation at the bilateral IC in response to high pressure stimuli was significantly greater in FMS patients than it was in the controls, whereas there were no differences in BOLD signal changes in the STG regions between FMS patients and controls, irrespective of pain level. Prominent signal changes at both ROIs in FMS patients were noted between high and medium pressure (p<0.001 contralateral IC, p=0.001 for ipsilateral IC, p=0.008 for contralateral STG, and p=0.049 for ipsilateral STG). BOLD signal changes on the contralateral STG after medium stimuli were correlated with tender point count (r=0.586, p=0.013). CONCLUSIONS This study revealed more distinct signal variability in the ICs in FMS patients than in those of controls in response to high pressure stimuli. The IC can therefore be considered to be a region susceptible to pain perception in FMS patients.
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Affiliation(s)
- S-H Kim
- Division of Rheumatology, Inje University College of Medicine, Haeundae Paik Hospital, Busan, Korea
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Abstract
Lung carcinoma is the leading cause of carcinoma death in the world. Despite recent advances in understanding the molecular biology of lung cancer and the introduction of new therapeutic agents for its treatment, its dismal 5-year survival rate has not changed substantially. Clinical approaches have not significantly improved the survival of patients with advanced lung cancer. However, recent discoveries about the molecular mechanisms responsible for lung cancer initiation and proliferation have unveiled new targets for therapy. One of the hallmark features of cancer cells is their ability to evade programmed cell death or apoptosis. Alterations in pro- and anti-apoptotic pathways are common in cancer cells and defects in regulation of apoptosis have been implicated in both lung tumorigenesis and drug resistance. Thus, targeting apoptosis through the direct or indirect manipulation of the pro-apoptotic machinery offers a novel strategy for treatment. This mini review summaries the molecular events that contribute to drug-induced apoptosis and how lung tumors evade apoptotic death followed by an analysis of the implications for treatment.
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Affiliation(s)
- S W Han
- Division of Pulmonary, Critical Care and Sleep Disorders Medicine, Louisville School of Medicine, Louisville, KY 40202, USA.
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Hong JY, Han SW, Kim WO, Kim EJ, Kil HK. Effect of dexamethasone in combination with caudal analgesia on postoperative pain control in day-case paediatric orchiopexy. Br J Anaesth 2010; 105:506-10. [PMID: 20659915 DOI: 10.1093/bja/aeq187] [Citation(s) in RCA: 124] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- J-Y Hong
- Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Severance Hospital, 250 Seongsanno, Seodaemun-gu, 120-752 Seoul, Republic of Korea
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Sacramento CB, Moraes JZ, Denapolis PMA, Han SW. Gene expression promoted by the SV40 DNA targeting sequence and the hypoxia-responsive element under normoxia and hypoxia. Braz J Med Biol Res 2010; 43:722-7. [PMID: 20640386 DOI: 10.1590/s0100-879x2010007500064] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2009] [Accepted: 06/30/2010] [Indexed: 11/21/2022] Open
Abstract
The main objective of the present study was to find suitable DNA-targeting sequences (DTS) for the construction of plasmid vectors to be used to treat ischemic diseases. The well-known Simian virus 40 nuclear DTS (SV40-DTS) and hypoxia-responsive element (HRE) sequences were used to construct plasmid vectors to express the human vascular endothelial growth factor gene (hVEGF). The rate of plasmid nuclear transport and consequent gene expression under normoxia (20% O2) and hypoxia (less than 5% O2) were determined. Plasmids containing the SV40-DTS or HRE sequences were constructed and used to transfect the A293T cell line (a human embryonic kidney cell line) in vitro and mouse skeletal muscle cells in vivo. Plasmid transport to the nucleus was monitored by real-time PCR, and the expression level of the hVEGF gene was measured by ELISA. The in vitro nuclear transport efficiency of the SV40-DTS plasmid was about 50% lower under hypoxia, while the HRE plasmid was about 50% higher under hypoxia. Quantitation of reporter gene expression in vitro and in vivo, under hypoxia and normoxia, confirmed that the SV40-DTS plasmid functioned better under normoxia, while the HRE plasmid was superior under hypoxia. These results indicate that the efficiency of gene expression by plasmids containing DNA binding sequences is affected by the concentration of oxygen in the medium.
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Affiliation(s)
- C B Sacramento
- Centro Interdisciplinar de Terapia Gênica, Universidade Federal de São Paulo
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Lee JD, Han SW, Miyawaki N, Gomi H. Comment on "temperature-dependent localized excitations of doped carriers in superconducting diamond". Phys Rev Lett 2009; 102:199701-199702. [PMID: 19519005 DOI: 10.1103/physrevlett.102.199701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2008] [Indexed: 05/27/2023]
Abstract
A Comment on the Letter by K. Ishizaka et al., Phys. Rev. Lett. 100, 166402 (2008)10.1103/PhysRevLett.100.166402. The authors of the Letter offer a Reply.
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Hwang C, Lee D, Han SW, Kang JS. Quantum-well states in Cu/Fe/Cu(111) coupled to the bulk band through the barrier. J Phys Condens Matter 2008; 20:265007. [PMID: 21694356 DOI: 10.1088/0953-8984/20/26/265007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The quantum-well state (QWS) has been observed on the surface of Cu/Fe/Cu(111). The confinement of the states on the top Cu layers is due to the minority spin barrier of the Fe underlayer. This QWS coexists with the Shockley surface state, which is observed on a clean Cu(111) surface. The resonant behavior of this QWS versus photon energy results from the vertical transition to the unoccupied bulk band, which is possibly due to the coupling between the overlayer Cu and the substrate Cu(111).
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Affiliation(s)
- Chanyong Hwang
- Advanced Industrial Technology Group, Division of Advanced Technology, Korea Research Institute of Standards and Science, Daejeon 305-600, Korea
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32
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Lee JD, Han SW, Inoue J. Sharp contrasts in low-energy quasiparticle dynamics of graphite between Brillouin zone K and H points. Phys Rev Lett 2008; 100:216801. [PMID: 18518624 DOI: 10.1103/physrevlett.100.216801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2007] [Indexed: 05/26/2023]
Abstract
The low-energy quasiparticle (QP) dynamics of graphite are governed by a coupling with the E(2g) longitudinal optical phonon of omega(LO) approximately 200 meV, which is found to dramatically depend on the electronic band dispersion epsilon(k). A discontinuity of the QP linewidth develops near omega(LO) for a linear band with a quadratic band top [near the Brillouin zone (BZ) K point], while it disappears for a pure linear band (near the BZ H point). It is also found that the effective electron-phonon coupling near the K point is stronger than near the H point by more than 50%. This finding makes possible a consistent understanding of recent angle-resolved photoemission observations near the K point.
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Affiliation(s)
- J D Lee
- School of Materials Science, Japan Advanced Institute of Science and Technology, Ishikawa 923-1292, Japan
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Abstract
We describe a case of esophageal perforation that resulted from a fishbone. A 71-year-old man had had a fishbone impacted in the lower esophagus for 2 days. At presentation, the bone was dislodged at endoscopy; one round opening in a deep ulceration was detected when the fishbone was removed. The perforation was closed by endoscopic hemoclipping, after the removal of the fishbone. A thoracic computed tomography revealed air around the esophagus, aorta and bronchus and the presence of a pleural effusion. These findings suggested mediastinal emphysema and mediastinitis due to the esophageal perforation after the removal of the fishbone. Esophagography revealed a focal esophageal defect and linear contrast leakage at the distal esophagus. The mediastinal emphysema and pleural effusion successfully resolved after the endoscopic hemoclip application and conservative management of the perforation.
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Affiliation(s)
- H Y Sung
- Division of Gastroenterology, Department of Internal Medicine, Catholic University of Korea, Seoul, Korea
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Helfenstein T, Ihara SSM, Santos AO, Relvas WGM, Souza DRS, Scartezini M, Han SW, Fonseca MIH, Pinto LDESA, Fonseca FAH, Izar MCO. D 003 CAN GENETIC MARKERS PREDICT CORONARY RISK IN TYPE 2 DIABETES OVER AND ABOVE CLASSIC RISK FACTORS? ATHEROSCLEROSIS SUPP 2007. [DOI: 10.1016/s1567-5688(07)71894-9] [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: 10/22/2022]
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Abstract
OBJECTIVE To determine whether there is a relationship between aortic plaques and intracranial (IC) atherosclerosis. METHODS We reviewed 922 patients with stroke who had both transesophageal echocardiography and cerebral angiography. The plaques of these patients were classified as either complex aortic plaques (CAP), which protruded > or =4 mm or were present as mobile lesions in the proximal aorta, or simple aortic plaques (SAP), which were <4 mm or present in the descending aorta. Cerebral artery atherosclerosis was classified as either an IC or extracranial (EC) atherosclerosis. RESULTS Among the 922 patients, we found aortic plaques in 237 patients (26%). There were 111 (47%) patients of SAP, 74 (31%) patients with CAP, and 52 (22%) patients that had both SAP and CAP. Angiography showed IC or EC atherosclerosis in 511 patients (55%). The presence of aortic plaques was significantly associated with IC or EC atherosclerosis. The significance appeared to be due to the strong association between the presence of SAP and IC atherosclerosis (51% SAP vs 35% no plaques; odds ratio = 1.94, 95% CI: 1.17 to 3.21). In the multiple logistic regression analysis, SAP were independent predictors of IC atherosclerosis CONCLUSIONS The presence of simple aortic plaques may be a marker of advanced vascular disease. Detection of simple aortic plaques during transesophageal echocardiography may have clinical implications because patients with these plaques frequently had concomitant intracranial atherosclerosis, a risk factor for stroke.
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Affiliation(s)
- H S Nam
- Department of Neurology and National Core Research Center for Nanomedical Technology, Yonsei University College of Medicine, Seoul, Korea
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Affiliation(s)
- S W Han
- Department of Neurology, Sanggye Paik Hospital, Inje University College of Medicine, Seoul, Korea.
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Han SW, Roman J. Fibronectin induces cell proliferation and inhibits apoptosis in human bronchial epithelial cells: pro-oncogenic effects mediated by PI3-kinase and NF-κB. Oncogene 2006; 25:4341-9. [PMID: 16518410 DOI: 10.1038/sj.onc.1209460] [Citation(s) in RCA: 86] [Impact Index Per Article: 4.8] [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: 01/05/2023]
Abstract
The extracellular matrix glycoprotein, fibronectin, influences a variety of cellular functions including adhesion, migration, survival, differentiation, and growth. Fibronectin has also been shown to increase the migration and proliferation of human lung carcinoma cells. However, the role of fibronectin in controlling lung airway epithelial cell phenotype remains unknown. Here, we demonstrate that fibronectin stimulates the proliferation of human bronchial epithelial cells (BEAS-2B and 16-HBE). Of note, fibronectin induced the mRNA and protein expression of c-Myc and cyclin D1, while it decreased the expressions of cyclin-dependent kinase inhibitor p21 (WAF-1/CIP1/MDA-6) (p21) and the tumor suppressor gene phosphatase and tensin homolog deleted on chromosome ten (PTEN). Fibronectin also stimulated the phosphorylation of the phosphatidylinositol 3 kinase (PI3-K) downstream signal Akt. The inhibitor of PI3-K, Wortmannin, and anti-alpha5beta1 integrin antibodies abrogated the effect of fibronectin on c-Myc, cyclin D1, p21, and PTEN expression. The stimulatory effect of fibronectin was mediated by nuclear factor kappaB (NF-kappaB) since fibronectin induced the expression of the p65 component of NF-kappaB and enhanced NF-kappaB DNA binding. Furthermore, we found that p65 small interfering RNA inhibited the effect of fibronectin on c-Myc, cyclin D1, p21, PTEN expression, and on fibronectin-induced cell proliferation. Finally, we found that fibronectin inhibits apoptosis by reducing DNA fragmentation and inhibiting the activities of caspases 3/7. Taken together, our findings demonstrate that fibronectin stimulates human bronchial epithelial cell growth and inhibits apoptosis through activation of NF-kappaB, which, in turn, increases the expression of c-Myc and cyclin D1 and decreases p21 and PTEN via alpha5beta1 integrin-dependent signals that include PI3-K/Akt. Therefore, alternations in the extracellular matrix composition of the lung, with increased fibronectin, might promote epithelial cell growth and thereby contribute to oncogenesis in certain settings.
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Affiliation(s)
- S W Han
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA.
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Seo JS, Lee SS, Kim SI, Ryu WH, Sa KH, Kim SU, Han SW, Nam EJ, Park JY, Lee WK, Kim SY, Kang YM. Influence of VEGF gene polymorphisms on the severity of ankylosing spondylitis. Rheumatology (Oxford) 2005; 44:1299-302. [PMID: 16014410 DOI: 10.1093/rheumatology/kei013] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [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: 11/12/2022] Open
Abstract
OBJECTIVES To investigate the role of polymorphisms of the vascular endothelial growth factor (VEGF) gene in susceptibility to ankylosing spondylitis (AS), and their relationship to clinical features and radiographic severity. METHODS This study included 157 patients with AS and 140 healthy unrelated controls. Polymorphisms of the VEGF gene were analysed by the polymerase chain reaction (PCR)-restriction fragment length polymorphism assay and amplification refractory mutation system-PCR. Haplotypes were reconstructed using the Bayesian algorithm. Radiographic severity was assessed by the Bath Ankylosing Spondylitis Radiological Index (BASRI). RESULTS The genotype frequencies of the polymorphisms were in Hardy-Weinberg equilibrium. The distributions of genotypes and alleles did not differ between AS patients and controls. Among the six haplotypes reconstructed based on the tight linkage disequilibrium at positions -2578, -1154 and -634 (pairwise linkage disequilibrium coefficient, r = 0.361-0.706), no haplotype was associated with susceptibility to AS. Clinical features were analysed for the four haplotypes (CGC, CGG, AAG, AGG) which were prevalent. In carriers of the AGG haplotype, the frequency of cervical spine involvement was significantly higher (P = 0.002, P(corr) = 0.036) and that of patients showing a BASRI score >6 was also higher (P = 0.025, P(corr) = 0.45). CONCLUSIONS This study demonstrates that polymorphisms of the VEGF gene may contribute to disease severity in AS.
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Affiliation(s)
- J S Seo
- Department of Internal Medicine, Kyungpook National University Hospital, Samduk 2-Ga, Junggu, Daegu 700-721, Republic of Korea
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Abstract
OBJECTIVE To determine whether transforming growth factor-beta1 (TGF-beta1) polymorphisms are associated with susceptibility to rheumatoid arthritis (RA) and to analyse whether they can affect the progression of radiographic severity. METHODS A total of 143 RA patients and 148 healthy unrelated controls were tested for the TGF-beta1 polymorphisms using polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP). RESULTS The TGF-beta1 polymorphisms were not associated with susceptibility to RA, although there was a trend that -509C/T and the 869T/C polymorphisms were associated with RA in the male population. The progression of radiographic severity, which was defined by a modified Sharp score plotted against disease duration, was significantly faster in the carrier of T allele at the -509 (p=0.048). CONCLUSION Our data support the hypothesis that TGF-beta1 polymorphism may determine the progression of joint destruction in RA.
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Affiliation(s)
- S Y Kim
- Department of Orthopaedic Surgery, Kyungpook National University School of Medicine, Daegu, South Korea
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40
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Relvas WGM, Izar MCO, Helfenstein T, Fonseca MIH, Colovati M, Oliveira A, Ihara SSM, Han SW, Las Casas AA, Fonseca FAH. Relationship between gene polymorphisms and prevalence of myocardial infarction among diabetic and non-diabetic subjects. Atherosclerosis 2005; 178:101-5. [PMID: 15585206 DOI: 10.1016/j.atherosclerosis.2004.05.025] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2003] [Revised: 05/04/2004] [Accepted: 05/25/2004] [Indexed: 10/26/2022]
Abstract
This study was aimed to examine cholesteryl ester transfer protein (CETP), apolipoprotein AI and CIII gene polymorphisms, and to verify whether these genetic determinants are associated with the prevalence of myocardial infarction (MI) or type 2 diabetes. The TaqIB restriction fragment length polymorphism (RFLP) in intron I of the CETP gene, the MspI in the third intron of the APOAI gene, and also SstI in the 3' untranslated region of the APOCIII gene were determined using standard methods. The prevalence of these polymorphisms was compared between diabetic (n = 119), and non-diabetic (n = 100) middle-aged individuals of both sexes. We found a higher prevalence of the B2B2 genotype of the CETP gene among diabetics than that observed in non-diabetics (P < 0.05), and a lower prevalence of this genotype among patients with previous MI (P < 0.02). The MspI polymorphisms of the APOAI gene showed that M1++ genotype was found mainly in diabetic patients (P < 0.04). Conversely, the SstI polymorphism of APOCIII gene was not significantly associated with either MI or diabetes. Therefore, among these genetic polymorphisms, TaqIB of CETP and MspI of apolipoprotein AI appeared to help significantly to identify diabetic individuals. In particular, the former may have an additional role in the primary prevention of coronary disease.
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Affiliation(s)
- W G M Relvas
- Lipides, Aterosclerose e Biologia Vascular, Disciplina de Cardiologia-Universidade Federal de São Paulo, UNIFESP, Rua Pedro de Toledo 458, São Paulo 04039-001, Brazil
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Kang JS, Kim G, Wi SC, Lee SS, Choi S, Cho S, Han SW, Kim KH, Song HJ, Shin HJ, Sekiyama A, Kasai S, Suga S, Min BI. Spatial chemical inhomogeneity and local electronic structure of Mn-doped Ge ferromagnetic semiconductors. Phys Rev Lett 2005; 94:147202. [PMID: 15904100 DOI: 10.1103/physrevlett.94.147202] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2004] [Indexed: 05/02/2023]
Abstract
We have investigated the chemical distributions and the local electronic structure of potential diluted magnetic semiconductor Ge0.94Mn0.06 single crystals using scanning photoelectron microscopy (SPEM), x-ray absorption spectroscopy (XAS), and photoemission spectroscopy (PES). The SPEM image shows the stripe-shaped microstructures, which arise from the chemical phase separation between the Mn-rich and Mn-depleted phases. The Mn 2p XAS shows that the Mn ions in the Mn-rich region are in the divalent high-spin Mn2+ states but that they do not form metallic Mn clusters. The Mn 3d PES spectrum exhibits a peak centered at approximately 4 eV below E(F) and the negligible spectral weight near E(F). This study suggests that the observed ferromagnetism in Ge1-xMnx arises from the phase-separated Mn-rich phase.
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Affiliation(s)
- J-S Kang
- Department of Physics, The Catholic University of Korea, Puchon 420-743, Korea
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Affiliation(s)
- S H Kim
- Department of Neurology, Molecular Aging Research Center, Brain Korea 21 Project for Medical Sciences, Yonsei University College of Medicine, Seoul, Korea
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Abstract
Limb shaking TIA is a rare but well-known feature of severe carotid artery stenosis. The authors report a patient who developed recurrent shaking movements of a leg. An angiogram showed the focal stenosis of the anterior cerebral artery. Ictal and postacetazolamide SPECT scans suggested a local hyperfunction of cortical neurons and an impaired hemodynamic reserve in the vicinity of the ischemic area.
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MESH Headings
- Acetazolamide
- Anterior Cerebral Artery/diagnostic imaging
- Anterior Cerebral Artery/pathology
- Anterior Cerebral Artery/physiopathology
- Anticoagulants/therapeutic use
- Carbonic Anhydrase Inhibitors
- Cerebral Angiography
- Cerebrovascular Circulation/drug effects
- Cerebrovascular Circulation/physiology
- Constriction, Pathologic/complications
- Constriction, Pathologic/pathology
- Constriction, Pathologic/physiopathology
- Corpus Callosum/blood supply
- Corpus Callosum/diagnostic imaging
- Corpus Callosum/pathology
- Female
- Gyrus Cinguli/blood supply
- Gyrus Cinguli/diagnostic imaging
- Gyrus Cinguli/pathology
- Humans
- Infarction, Anterior Cerebral Artery/diagnostic imaging
- Infarction, Anterior Cerebral Artery/pathology
- Infarction, Anterior Cerebral Artery/physiopathology
- Ischemic Attack, Transient/complications
- Ischemic Attack, Transient/pathology
- Ischemic Attack, Transient/physiopathology
- Leg/physiopathology
- Magnetic Resonance Imaging
- Middle Aged
- Movement Disorders/etiology
- Movement Disorders/pathology
- Movement Disorders/physiopathology
- Tomography, Emission-Computed, Single-Photon
- Treatment Outcome
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Affiliation(s)
- S W Han
- Department of Neurology, Research Institute of Aging Science, Brain Korea 21 Project for Medical Sciences, Yonsei University College of Medicine, Seoul, Korea
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McColl E, Han SW, Barton JR, Welfare MR. A comparison of the discriminatory power of the Inflammatory Bowel Disease Questionnaire and the SF-36 in people with ulcerative colitis. Qual Life Res 2004; 13:805-11. [PMID: 15129890 DOI: 10.1023/b:qure.0000021701.28467.57] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The aim of this study was to compare the discriminatory power of a generic and a condition-specific quality of life measure (the Medical Outcomes Study Short-Form 36 (SF-36) and the Inflammatory Bowel Disease Questionnaire (IBDQ)) with respect to sub-groups defined by disease-related and other factors, in a sample of patients with ulcerative colitis. Disease activity was generally more highly correlated with IBDQ scores than with SF-36 scores. The only significant differences with respect to disease extent were in the SF-36 energy/vitality and social function domains. Age was negatively and weakly to moderately correlated with the physical domains of the SF-36 but positively though weakly correlated with scores on the IBDQ emotional domain and those domains of the SF-36 related to mental well-being. Co-existing chronic illness, even on controlling for age, was associated with significantly poorer scores on the generic measure, but had little influence on IBDQ scores. In conclusion, generic and disease-specific measures of quality of life appear to be complementary rather than interchangeable. We recommend the use of both types of measure in parallel.
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Affiliation(s)
- E McColl
- Centre for Health Services Research, University of Newcastle upon Tyne, United Kingdom.
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Hjalmas K, Arnold T, Bower W, Caione P, Chiozza LM, von Gontard A, Han SW, Husman DA, Kawauchi A, LAckgren G, Lottmann H, Mark S, Rittig S, Robson L, Walle JV, Yeung CK. Nocturnal enuresis: an international evidence based management strategy. J Urol 2004; 171:2545-61. [PMID: 15118418 DOI: 10.1097/01.ju.0000111504.85822.b2] [Citation(s) in RCA: 232] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- K Hjalmas
- Göteborg University, Berzeliigatan, Sweden.
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Han SW, Kim GW, Seo JS, Kim SJ, Sa KH, Park JY, Lee J, Kim SY, Goronzy JJ, Weyand CM, Kang YM. VEGF gene polymorphisms and susceptibility to rheumatoid arthritis. Rheumatology (Oxford) 2004; 43:1173-7. [PMID: 15213335 DOI: 10.1093/rheumatology/keh281] [Citation(s) in RCA: 81] [Impact Index Per Article: 4.1] [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: 11/14/2022] Open
Abstract
OBJECTIVES To investigate polymorphisms of the VEGF gene in patients with rheumatoid arthritis (RA), their relationship to clinical features and the radiographic progression of joint disease. METHODS One hundred and forty patients with RA and 149 healthy unrelated controls were recruited. We examined four polymorphisms of the VEGF gene which are reported to be associated with production of vascular endothelial growth factor (VEGF), using polymerase chain reaction (PCR) restriction fragment length polymorphism assay and amplification refractory mutation system (ARMS) PCR. Haplotypes were predicted by Bayesian algorithm using the Phase program. RESULTS All four polymorphisms were in Hardy-Weinberg equilibrium in both patients and controls. The frequency of the 936 T allele, which has been associated with lower production of VEGF, was significantly increased in RA patients compared with controls (22.7 vs 13.4%, P = 0.002). The frequencies of two haplotypes (CGCT and AAGT) which were predicted using the Phase program were significantly increased in RA patients compared with controls [33 vs 14%, odds ratio (OR) 2.636, 95% confidence interval (CI) 1.38-5.04 for CGCT; 17 vs 6%, OR 3.08, 95% CI 1.20-7.92 for AAGT]. The carriers of the susceptible haplotypes in RA patients had a younger age at disease onset but did not show a difference in the progression rate of radiographic joint destruction. CONCLUSIONS Our data suggest that the VEGF gene may play a role in the development of RA
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Affiliation(s)
- S W Han
- Department of Internal Medicine, Kyungpook National University School of Medicine, Daegu, Republic of Korea
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Bai JZ, Ban Y, Bian JG, Cai X, Chang JF, Chen HF, Chen HS, Chen HX, Chen J, Chen JC, Chen J, Chen ML, Chen YB, Chi SP, Chu YP, Cui XZ, Dai HL, Dai YS, Deng ZY, Dong LY, Du SX, Du ZZ, Fang J, Fang SS, Fu CD, Fu HY, Fu LP, Gao CS, Gao ML, Gao YN, Gong MY, Gong WX, Gu SD, Guo YN, Guo YQ, Guo ZJ, Han SW, Harris FA, He J, He KL, He M, He X, Heng YK, Hu HM, Hu T, Huang GS, Huang L, Huang XP, Ji XB, Jia QY, Jiang CH, Jiang XS, Jin DP, Jin S, Jin Y, Lai YF, Li F, Li G, Li HH, Li J, Li JC, Li QJ, Li RB, Li RY, Li SM, Li W, Li WG, Li XL, Li XQ, Li XS, Liang YF, Liao HB, Liu CX, Liu F, Liu F, Liu HM, Liu JB, Liu JP, Liu RG, Liu Y, Liu ZA, Liu ZX, Lu GR, Lu F, Lu JG, Luo CL, Luo XL, Ma FC, Ma JM, Ma LL, Ma XY, Mao ZP, Meng XC, Mo XH, Nie J, Nie ZD, Olsen SL, Peng HP, Qi ND, Qian CD, Qin H, Qiu JF, Ren ZY, Rong G, Shan LY, Shang L, Shen DL, Shen XY, Sheng HY, Shi F, Shi X, Song LW, Sun HS, Sun SS, Sun YZ, Sun ZJ, Tang X, Tao N, Tian YR, Tong GL, Varner GS, Wang DY, Wang JZ, Wang L, Wang LS, Wang M, Wang M, Wang P, Wang PL, Wang SZ, Wang WF, Wang YF, Wang Z, Wang Z, Wang Z, Wang ZY, Wei CL, Wu N, Wu YM, Xia XM, Xie XX, Xin B, Xu GF, Xu H, Xu Y, Xue ST, Yan ML, Yan WB, Yang F, Yang HX, Yang J, Yang SD, Yang YX, Yi LH, Yi ZY, Ye M, Ye MH, Ye YX, Yu CS, Yu GW, Yuan CZ, Yuan JM, Yuan Y, Yue Q, Zang SL, Zeng Y, Zhang BX, Zhang BY, Zhang CC, Zhang DH, Zhang HY, Zhang J, Zhang JM, Zhang JY, Zhang JW, Zhang LS, Zhang QJ, Zhang SQ, Zhang XM, Zhang XY, Zhang Y, Zhang YJ, Zhang YY, Zhang ZP, Zhang ZQ, Zhao DX, Zhao JB, Zhao JW, Zhao PP, Zhao WR, Zhao XJ, Zhao YB, Zhao ZG, Zheng HQ, Zheng JP, Zheng LS, Zheng ZP, Zhong XC, Zhou BQ, Zhou GM, Zhou L, Zhou NF, Zhu KJ, Zhu QM, Zhu Y, Zhu YC, Zhu YS, Zhu ZA, Zhuang BA, Zou BS. Observation of the decay psi(2S)-->K0SK0L. Phys Rev Lett 2004; 92:052001. [PMID: 14995298 DOI: 10.1103/physrevlett.92.052001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2003] [Indexed: 05/24/2023]
Abstract
The decay psi(2S)-->K(0)(S)K(0)(L) is observed using psi(2S) data collected with the Beijing Spectrometer at the Beijing Electron-Positron Collider; the branching fraction is determined to be B(psi(2S)-->K(0)(S)K(0)(L))=(5.24+/-0.47+/-0.48)x10(-5). Compared with J/psi-->K(0)(S)K(0)(L), the psi(2S) branching fraction is enhanced relative to the prediction of the perturbative QCD "12%" rule. The result, together with the branching fractions of psi(2S) decays to other pseudoscalar meson pairs (pi(+)pi(-) and K+K-), is used to investigate the relative phase between the three-gluon and the one-photon annihilation amplitudes of psi(2S) decays.
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Affiliation(s)
- J Z Bai
- Institute of High Energy Physics, Beijing 100039, People's Republic of China
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Kim JI, Kim SS, Park S, Han J, Kim JK, Han SW, Choi KY, Chung IS, Chung KW, Sun HS. Endoscopic hemoclipping using a transparent cap in technically difficult cases. Endoscopy 2003; 35:659-62. [PMID: 12929060 DOI: 10.1055/s-2003-41512] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND AND STUDY AIMS Technical difficulties have been experienced in endoscopic hemoclipping on the posterior wall of the body of the stomach because the angle of approach is tangential. It has been suggested that the use of a transparent cap on the tip of the endoscope could help to solve this problem. The purpose of this study was to examine the efficacy of endoscopic hemoclipping using a transparent cap over the tip of the endoscope. PATIENTS AND METHODS A total of 74 patients with a bleeding peptic ulcer or stigmata of recent hemorrhage underwent endoscopic hemoclipping. Technical difficulty in hemoclipping was experienced in 18 patients and the transparent cap was used in these cases. We therefore conducted a nonrandomized prospective study to compare bleeding control with the hemoclip with and without the aid of a transparent cap. RESULTS There were no statistically significant differences between the patients treated with the cap and those treated without the cap with regard to the initial hemostasis rate (94.4 % vs. 91.1 %), the rebleeding rate (11.7 % vs. 11.8 %), or the permanent hemostasis rate (94.4 % vs. 96.4 %). CONCLUSIONS Although there was no statistically significant difference between patients treated with or without a transparent cap, hemoclipping with the aid of the cap made it possible to clip a lesion too tangential to be clipped without it. However, this study did not compare conventional hemoclipping with hemoclipping using a cap because the cap was only used in cases in which conventional clipping had failed.
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Affiliation(s)
- J I Kim
- Department of Gastroenterology, Internal Medicine, The Catholic University of Korea, Seoul, Korea
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Bai JZ, Ban Y, Bian JG, Cai X, Chang JF, Chen HF, Chen HS, Chen J, Chen J, Chen JC, Chen YB, Chi SP, Chu YP, Cui XZ, Dai YM, Dai YS, Dong LY, Du SX, Du ZZ, Dunwoodie W, Fang J, Fang SS, Fu CD, Fu HY, Fu LP, Gao CS, Gao ML, Gao YN, Gong MY, Gong WX, Gu SD, Guo YN, Guo YQ, Guo ZJ, Han SW, Harris FA, He J, He KL, He M, He X, Heng YK, Hong T, Hu HM, Hu T, Huang GS, Huang L, Huang XP, Izen JM, Ji XB, Jiang CH, Jiang XS, Jin DP, Jin S, Jin Y, Jones BD, Ke ZJ, Kong D, Lai YF, Li F, Li G, Li HH, Li J, Li JC, Li K, Li QJ, Li RB, Li RY, Li W, Li WG, Li XQ, Li XS, Liu CF, Liu CX, Liu F, Liu F, Liu HM, Liu JB, Liu JP, Liu RG, Liu Y, Liu ZA, Liu ZX, Lou XC, Lu GR, Lu F, Lu HJ, Lu JG, Lu ZJ, Luo XL, Ma EC, Ma FC, Ma JM, Malchow R, Mao ZP, Meng XC, Mo XH, Nie J, Nie ZD, Olsen SL, Paluselli D, Peng HP, Qi ND, Qian CD, Qiu JF, Rong G, Shen DL, Shen H, Shen XY, Sheng HY, Shi F, Song LW, Sun HS, Sun SS, Sun YZ, Sun ZJ, Tang SQ, Tang X, Tian D, Tian YR, Toki W, Tong GL, Varner GS, Wang J, Wang JZ, Wang L, Wang LS, Wang M, Wang M, Wang P, Wang PL, Wang WF, Wang YF, Wang Z, Wang Z, Wang Z, Wang ZY, Wei CL, Wu N, Xia XM, Xie XX, Xu GF, Xu Y, Xue ST, Yan ML, Yan WB, Yang GA, Yang HX, Yang J, Yang SD, Ye MH, Ye YX, Ying J, Yu CS, Yu GW, Yuan CZ, Yuan JM, Yuan Y, Yue Q, Zang SL, Zeng Y, Zhang BX, Zhang BY, Zhang CC, Zhang DH, Zhang HY, Zhang J, Zhang JM, Zhang JW, Zhang LS, Zhang QJ, Zhang SQ, Zhang XY, Zhang YJ, Zhang Y, Zhang YY, Zhang ZP, Zhao DX, Zhao J, Zhao JW, Zhao PP, Zhao WR, Zhao YB, Zhao ZG, Zheng JP, Zheng LS, Zheng ZP, Zhong XC, Zhou BQ, Zhou GM, Zhou L, Zhou NF, Zhu KJ, Zhu QM, Zhu Y, Zhu YC, Zhu YS, Zhu ZA, Zhuang BA, Zou BS. Observation of a near-threshold enhancement in the pp mass spectrum from radiative J/psi-->gammapp decays. Phys Rev Lett 2003; 91:022001. [PMID: 12906471 DOI: 10.1103/physrevlett.91.022001] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2003] [Indexed: 05/24/2023]
Abstract
We observe a narrow enhancement near 2m(p) in the invariant mass spectrum of pp pairs from radiative J/psi-->gammapp decays. No similar structure is seen in J/psi-->pi(0)pp decays. The results are based on an analysis of a 58 x 10(6) event sample of J/psi decays accumulated with the BESII detector at the Beijing electron-positron collider. The enhancement can be fit with either an S- or P-wave Breit-Wigner resonance function. In the case of the S-wave fit, the peak mass is below 2m(p) at M=1859(+3)(-10) (stat)+5-25(syst) MeV/c(2) and the total width is Gamma<30 MeV/c(2) at the 90% confidence level. These mass and width values are not consistent with the properties of any known particle.
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Affiliation(s)
- J Z Bai
- Institute of High Energy Physics, Beijing 100039, People's Republic of China
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Abstract
The most common type of esophageal food-related foreign body is the meat bolus, which is frequently associated with underlying esophageal stenosis. Herein, we report two cases of meat bolus impaction associated with nutcracker esophagus. In the first case, the 63-year-old male patient had chest discomfort and swallowing difficulty after ingestion of butcher's meat. In the second case, the 55-year-old male patient had complained of swallowing difficulty after ingestion of chicken. In both cases, no pathologic findings were observed endoscopically after removal of the esophageal meat bolus. We performed esophageal manometry, which showed very high amplitudes of esophageal pressure in the mid- and distal esophagus. These findings were consistent with nutcracker esophagus. These cases show that esophageal motility disorder may be the cause of esophageal foreign body impaction, and esophageal manometry should be performed for evaluation of the cause of foreign body, especially in an endoscopically normal patient.
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Affiliation(s)
- H S Chae
- Department of Internal Medicine, Catholic University College of Medicine, Seoul, South Korea
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