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Yang YL, Chen SC, Wu CH, Huang SS, Leong Chan W, Lin SJ, Chou CY, Chen JW, Pan JP, Charng MJ, Chen YH, Wu TC, Lu TM, Hsu PF, Huang PH, Cheng HM, Huang CC, Sung SH, Lin YJ, Leu HB. Sex and age differences of major cardiovascular events in patients after percutaneous coronary intervention. J Chin Med Assoc 2023; 86:1046-1052. [PMID: 37815291 DOI: 10.1097/jcma.0000000000001011] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/11/2023] Open
Abstract
BACKGROUND Women usually have higher risk after receiving percutaneous coronary interventions (PCIs) than men with coronary artery disease (CAD). The aim of this study was to investigate the association of sex differences with future outcomes in CAD patients undergoing PCI, to assess the role of age, and to extend observed endpoints to stroke and congestive heart failure. METHODS Six thousand six hundred forty-seven patients with CAD who received successful PCIs. The associations between clinic outcomes and sex were analyzed. The primary outcome was major cardiovascular events (MACE), including cardiac death, nonfatal myocardial infraction, and nonfatal stroke. The secondary outcome was MACE and hospitalization for heart failure (total CV events). RESULTS During a mean of 52.7 months of follow-up, 4833 men and 1614 women received PCI. Univariate and multivariate analyses showed that women were independently associated with an increased risk of cardiac death (HR, 1.78; 95% CI, 1.32-2.41), hospitalization for heart failure (HR, 1.53; 95% CI, 1.23-1.89), MACE (HR, 1.34; 95% CI, 1.10-1.63), and total CV events (HR, 1.39; 95% CI, 1.20-1.62). In the subgroup analysis, women aged under 60 years had higher cardiovascular risks than men of the same age category. CONCLUSION Women with CAD after successful PCI had poorer cardiovascular outcomes than men. Additionally, younger women (aged <60 years) were especially associated with a higher risk of developing future adverse cardiovascular outcomes.
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Affiliation(s)
- Ya-Ling Yang
- Department of Cardiology, Cardinal Tien Hospital, New Taipei City, Taiwan, ROC
- School of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan, ROC
| | - Su-Chan Chen
- Department of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Cheng-Hsueh Wu
- Department of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Shao-Sung Huang
- Department of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Healthcare and Management Centre, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Wan Leong Chan
- Department of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Shing-Jong Lin
- Department of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Chia-Yu Chou
- Department of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Jaw-Wen Chen
- Department of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Healthcare and Management Centre, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Ju-Pin Pan
- Department of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Min-Ji Charng
- Department of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Ying-Hwa Chen
- Department of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Tao-Cheng Wu
- Department of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Tse-Min Lu
- Department of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Healthcare and Management Centre, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Pai-Feng Hsu
- Department of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Po-Hsun Huang
- Department of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Hao-Min Cheng
- Department of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Chin-Chou Huang
- Department of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Shih-Hsien Sung
- Department of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Yenn-Jiang Lin
- Department of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Hsin-Bang Leu
- Department of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Healthcare and Management Centre, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Institute of Clinical Medicine and Cardiovascular Research Centre, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
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Tsai TY, Leu HB, Hsu PF, Yang YL, Chen SC, Huang SS, Chan WL, Lin SJ, Chen JW, Pan JP, Charng MJ, Chen YH, Wu TC, Lu TM, Huang PH, Cheng HM, Huang CC, Sung SH, Lin YJ, Wu CH. Association between visit-to-visit blood pressure variability and adverse events in coronary artery disease patients after coronary intervention. J Clin Hypertens (Greenwich) 2022; 24:1327-1338. [PMID: 36094363 PMCID: PMC9581098 DOI: 10.1111/jch.14565] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 08/09/2022] [Accepted: 08/10/2022] [Indexed: 11/30/2022]
Abstract
Blood pressure variability (BPV) is independently associated with higher cardiovascular risks. However, whether BPV is associated with poor outcomes for coronary artery disease (CAD) patients after percutaneous coronary intervention (PCI) remained undetermined. We aimed to investigate the relationship between BPV and the outcomes of CAD patients undergoing PCI. Two thousand seven hundred and sixty-two CAD patients (1938 males, mean age 69.6 ± 12.9) who received PCI at Taipei Veterans General Hospital from 2006 to 2015 with multiple blood pressure measurements before and after the index PCI were enrolled. We calculated the standard deviation of systolic blood pressure, diastolic blood pressure, and pulse pressure as parameters of BPV. The primary endpoint was the composite of major adverse cardiovascular events [MACE comprising of cardiovascular death, nonfatal myocardial infarction (MI), and non-fatal stroke] and heart failure hospitalization (HHF). The key secondary endpoint was MACE. Both pre-PCI and post-PCI BPV were associated with CV events even after adjusting for co-morbidities and mean blood pressure. In Cox analysis, for every 1 mmHg increase in systolic BPV, the hazard ratio for the MACE + HHF, MACE, HHF, and cardiovascular death was 1.04 (95%CI: 1.03-1.05), 1.04 (95%CI: 1.02-1.05), 1.05 (95%CI: 1.04-1.06), and 1.06 (95%CI: 1.03-1.09), respectively. The association between BPV and cardiovascular risk is independent of blood pressure control status. The prognostic value of BPV was superior to mean blood pressure in both pre-PCI and post-PCI period. BPV is independently associated with cardiovascular events after PCI and has a better prognostic value than mean blood pressure suggesting the importance of maintaining stable blood pressure for CAD patients.
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Affiliation(s)
- Tsung-Ying Tsai
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Division of Cardiology, Department of Cardiovascular Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Hsin-Bang Leu
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Healthcare and Management Center, Taipei Veterans General Hospital, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming Chiao Tung University, Taipei, Taiwan.,Institute of Clinical Medicine and Cardiovascular Research Center, National Yang-Ming Chiao Tung University, Taipei, Taiwan
| | - Pai-Feng Hsu
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Healthcare and Management Center, Taipei Veterans General Hospital, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming Chiao Tung University, Taipei, Taiwan.,Institute of Clinical Medicine and Cardiovascular Research Center, National Yang-Ming Chiao Tung University, Taipei, Taiwan
| | - Ya-Ling Yang
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute of Clinical Medicine and Cardiovascular Research Center, National Yang-Ming Chiao Tung University, Taipei, Taiwan
| | - Su-Chan Chen
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute of Clinical Medicine and Cardiovascular Research Center, National Yang-Ming Chiao Tung University, Taipei, Taiwan
| | - Shao-Sung Huang
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Healthcare and Management Center, Taipei Veterans General Hospital, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming Chiao Tung University, Taipei, Taiwan
| | - Wan Leong Chan
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming Chiao Tung University, Taipei, Taiwan
| | - Shing-Jong Lin
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming Chiao Tung University, Taipei, Taiwan.,Institute of Clinical Medicine and Cardiovascular Research Center, National Yang-Ming Chiao Tung University, Taipei, Taiwan
| | - Jaw-Wen Chen
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Healthcare and Management Center, Taipei Veterans General Hospital, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming Chiao Tung University, Taipei, Taiwan.,Institute of Clinical Medicine and Cardiovascular Research Center, National Yang-Ming Chiao Tung University, Taipei, Taiwan
| | - Ju-Pin Pan
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming Chiao Tung University, Taipei, Taiwan
| | - Min-Ji Charng
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming Chiao Tung University, Taipei, Taiwan
| | - Ying-Hwa Chen
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming Chiao Tung University, Taipei, Taiwan
| | - Tao-Cheng Wu
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming Chiao Tung University, Taipei, Taiwan
| | - Tse-Min Lu
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Healthcare and Management Center, Taipei Veterans General Hospital, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming Chiao Tung University, Taipei, Taiwan
| | - Po-Hsun Huang
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming Chiao Tung University, Taipei, Taiwan
| | - Hao-Min Cheng
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming Chiao Tung University, Taipei, Taiwan.,Institute of Clinical Medicine and Cardiovascular Research Center, National Yang-Ming Chiao Tung University, Taipei, Taiwan
| | - Chin-Chou Huang
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming Chiao Tung University, Taipei, Taiwan
| | - Shih-Hsien Sung
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming Chiao Tung University, Taipei, Taiwan
| | - Yenn-Jiang Lin
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming Chiao Tung University, Taipei, Taiwan
| | - Cheng-Hsueh Wu
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming Chiao Tung University, Taipei, Taiwan
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3
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Tsai YL, Chang CC, Lu TM, Pan JP. TCTAP C-109 Severe Iatrogenic Aortic Dissection Resolved in Five Days After Aorto-Ostial Stenting. J Am Coll Cardiol 2022. [DOI: 10.1016/j.jacc.2022.03.238] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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4
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Wu CI, Hsu PF, Lee IH, Lin YJ, Lin CF, Pan JP, Hsu TF, How CK, Kwan SY, Chung FP, Wu CH, Chen SA. Utilization of Amplitude-Integrated Electroencephalography to Predict Neurologic Function after Resuscitation in Adults with Cardiogenic Cardiac Arrest. Acta Cardiol Sin 2021; 37:632-642. [PMID: 34812237 PMCID: PMC8593491 DOI: 10.6515/acs.202111_37(6).20210630b] [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] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 06/20/2021] [Indexed: 01/24/2023]
Abstract
BACKGROUND Amplitude-integrated electroencephalography (aEEG) has been used as a tool to recognize brain activity in children with hypoxic encephalopathy. OBJECTIVES To assess the prognostic value of aEEG during the post-resuscitation period of adult cardiogenic cardiac arrest, comatose survivors were monitored within 24 h of a return of spontaneous circulation using aEEG. METHODS Forty-two consecutive patients experiencing cardiac arrest were retrospectively enrolled, and a return of spontaneous circulation was achieved in all cases. These patients were admitted to the Coronary Intensive Care Unit due to cardiogenic cardiac arrest. The primary outcome was the best neurologic outcome within 6 months after resuscitation, and the registered patients were divided into two groups based on the Cerebral Performance Category (CPC) scale (CPC 1-2, good neurologic function group; CPC 3-5, poor neurologic function group). All patients received an aEEG examination within 24 h after a return of spontaneous circulation, and the parameters and patterns of aEEG recordings were compared. RESULTS Nineteen patients were in the good neurologic function group, and 23 were in the poor group. The four voltage parameters (minimum, maximum, span, average) of the aEEG recordings in the good neurologic function groups were significantly higher than in the poor group. Moreover, the continuous pattern, but not the status epilepticus or burst suppression patterns, could predict mid-term good neurologic function. CONCLUSIONS aEEG can be used to predict neurologic outcomes based on the recordings' parameters and patterns in unconscious adults who have experienced a cardiac collapse, resuscitation, and return of spontaneous circulation.
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Affiliation(s)
- Cheng-I Wu
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital;
,
Institute of Clinical Medicine, National Yang Ming Chiao Tung University
| | - Pai-Feng Hsu
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital;
,
Institute of Clinical Medicine, National Yang Ming Chiao Tung University;
,
Director of Coronary Care Unit
| | | | - Yenn-Jiang Lin
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital;
,
Institute of Clinical Medicine, National Yang Ming Chiao Tung University
| | - Chun-Fu Lin
- Department of Neurology, Neurological Institute, Taipei Veterans General Hospital, Taipei
| | - Ju-Pin Pan
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital
| | | | | | - Shang-Yeong Kwan
- Department of Neurology, Neurological Institute, Taipei Veterans General Hospital, Taipei
| | - Fa-Po Chung
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital;
,
Institute of Clinical Medicine, National Yang Ming Chiao Tung University
| | - Cheng-Hsueh Wu
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital;
,
Institute of Clinical Medicine, National Yang Ming Chiao Tung University
| | - Shih-Ann Chen
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University;
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Cardiovascular Center, Taichung Veterans General Hospital, Taichung, Taiwan
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5
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Wu J, Feng LC, Xian XY, Qiang J, Zhang J, Mao QX, Kong SF, Chen YC, Pan JP. [Novel coronavirus pneumonia (COVID-19) CT distribution and sign features]. Zhonghua Jie He He Hu Xi Za Zhi 2020; 43:321-326. [PMID: 32125131 DOI: 10.3760/cma.j.cn112147-20200217-00106] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the imaging findings of 2019 novel coronavirus pneumonia (COVID-19). Methods: From January 20 to February 5, 2020, a total of 130 patients diagnosed with COVID-19 from seven hospitals in China were collected. The imaging data were reviewed and analyzed in detail. Results: (1) Distribution: the lesion detected in the lung unilaterally in 14 cases (10.7%) and bilaterally in 116 cases (89.3%). According to the distribution in the lobes of the lung, all cases could be classified into subpleural distribution (102 cases, 78.4%), centrilobular distribution (99 cases, 76.1%) and diffused distribution (8 cases, 6.1%). (2) Number of lesions: single lesion 9 cases (6.9%); multiple lesions 113 cases (86.9%), diffuse lesions 8 cases (6.1%). (3) Imaging density: 70 cases (53.8%) of ground-glass opacity (GGO), 60 cases (46.2%) of GGO+consolidation. (4) Accompanying signs: 100 cases (76.9%) with vascular thickening, 98 cases (75.3%) with "pleural parallel sign" ; " intralobular septal thickening" in 100 cases (76.9%); "halo sign" in 13 cases (10%); "reversed-halo sign" in 6 cases (4.6%); pleural effusion in 3 cases (2.3%), and pneumatocele in 2 cases (1.5%); no case with pulmonary cavity. Among 35 patients that underwent follow-up CT, 21 patients (60%) improved while 14 (40%) exacerbated. Conclusions: COVID-19 imaging characteristic mainly has subpleural, centrilobular and diffused distribution. The first two distributions can overlap or progress to diffused distribution. In the later period, it was mainly manifested as organizing pneumonia and fibrosis. The most valuable characteristic is the pleural parallel sign.
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Affiliation(s)
- J Wu
- Department of Radiology, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - L C Feng
- Department of Respiratory, Rizhao Institute of Tuberculosis Prevention and Control, Rizhao 276800, China
| | - X Y Xian
- Department of Radiology, Guigang combination of Chinese Traditional and Western Medicine Orthopedics Hospital, Guigang 537100 China
| | - J Qiang
- Department of Radiology, the First Affiliated Hospital, College of Clinical Medicine, Medical College of Henan University of Science and Technology, Luoyang 471003, China
| | - J Zhang
- The 908th Hospital of Chinese People's Liberation Army Joint Logistic Support Force, Nanchang 330002, China
| | - Q X Mao
- Department of Radiology, Guangxi province Longtan Hospital, Liuzhou 545003, China
| | - S F Kong
- The 908th Hospital of Chinese People's Liberation Army Joint Logistic Support Force, Nanchang 330002, China
| | - Y C Chen
- Department of Radiology, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - J P Pan
- Department of Imaging, Qujiang District People's Hospital, Lung Imaging Alliance, Shaoguan512100, China
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6
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Yang YL, Wu CH, Hsu PF, Chen SC, Huang SS, Chan WL, Lin SJ, Chou CY, Chen JW, Pan JP, Charng MJ, Chen YH, Wu TC, Lu TM, Huang PH, Cheng HM, Huang CC, Sung SH, Lin YJ, Leu HB. Systemic immune-inflammation index (SII) predicted clinical outcome in patients with coronary artery disease. Eur J Clin Invest 2020; 50:e13230. [PMID: 32291748 DOI: 10.1111/eci.13230] [Citation(s) in RCA: 232] [Impact Index Per Article: 58.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 03/28/2020] [Accepted: 04/02/2020] [Indexed: 12/21/2022]
Abstract
BACKGROUND This study examines the predictive value of a novel systemic immune-inflammation index (SII, platelet × neutrophil/lymphocyte ratio) in coronary artery disease (CAD) patients. METHODS A total of 5602 CAD patients who had undergone a percutaneous coronary intervention (PCI) were enrolled. They were divided into two groups by baseline SII score (high SII vs low SII) to analyse the relationship between SII groups and the long-term outcome. The primary outcomes were major cardiovascular events (MACE) which includes nonfatal myocardial infarction (MI), nonfatal stroke and cardiac death. Secondary outcomes included a composite of MACE and hospitalization for congestive heart failure. RESULTS An optimal SII cut-off point of 694.3 × 109 was identified for MACE in the CAD training cohort (n = 373) and then verified in the second larger CAD cohort (n = 5602). Univariate and multivariate analyses showed that a higher SII score (≥694.3) was independently associated with increased risk of developing cardiac death (HR: 2.02; 95% CI: 1.43-2.86), nonfatal MI (HR: 1.42; 95% CI: 1.09-1.85), nonfatal stroke (HR: 1.96; 95% CI: 1.28-2.99), MACE (HR: 1.65; 95% CI: 1.36-2.01) and total major events (HR: 1.53; 95% CI: 1.32-1.77). In addition, the SII significantly improved risk stratification of MI, cardiac death, heart failure, MACE and total major events than conventional risk factors in CAD patients by the significant increase in the C-index (P < .001) and reclassification risk categories by significant NRI (P < .05) and IDI (P < .05). CONCLUSIONS SII had a better prediction of major cardiovascular events than traditional risk factors in CAD patients after coronary intervention.
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Affiliation(s)
- Ya-Ling Yang
- Division of Cardiology, Department of Medicine, Healthcare and Management Center, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan.,Institute of Clinical Medicine and Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan.,Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital Taoyuan Branch, Taoyuan, Taiwan
| | - Cheng-Hsueh Wu
- Division of Cardiology, Department of Medicine, Healthcare and Management Center, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Pai-Feng Hsu
- Division of Cardiology, Department of Medicine, Healthcare and Management Center, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan.,Institute of Clinical Medicine and Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan.,Healthcare and Management Center, Taipei, Taiwan
| | - Su-Chan Chen
- Division of Cardiology, Department of Medicine, Healthcare and Management Center, Taipei, Taiwan.,Institute of Clinical Medicine and Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Shao-Sung Huang
- Division of Cardiology, Department of Medicine, Healthcare and Management Center, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan.,Healthcare and Management Center, Taipei, Taiwan
| | - Wan Leong Chan
- Division of Cardiology, Department of Medicine, Healthcare and Management Center, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan.,Institute of Clinical Medicine and Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Shing-Jong Lin
- Division of Cardiology, Department of Medicine, Healthcare and Management Center, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan.,Institute of Clinical Medicine and Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Chia-Yu Chou
- Division of Cardiology, Department of Medicine, Healthcare and Management Center, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Jaw-Wen Chen
- Division of Cardiology, Department of Medicine, Healthcare and Management Center, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan.,Institute of Clinical Medicine and Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Ju-Pin Pan
- Division of Cardiology, Department of Medicine, Healthcare and Management Center, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Min-Ji Charng
- Division of Cardiology, Department of Medicine, Healthcare and Management Center, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Ying-Hwa Chen
- Division of Cardiology, Department of Medicine, Healthcare and Management Center, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Tao-Cheng Wu
- Division of Cardiology, Department of Medicine, Healthcare and Management Center, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Tse-Min Lu
- Division of Cardiology, Department of Medicine, Healthcare and Management Center, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Po-Hsun Huang
- Division of Cardiology, Department of Medicine, Healthcare and Management Center, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Hao-Min Cheng
- Division of Cardiology, Department of Medicine, Healthcare and Management Center, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan.,Institute of Clinical Medicine and Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Chin-Chou Huang
- Division of Cardiology, Department of Medicine, Healthcare and Management Center, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan.,Department of Medical Education, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Shih-Hsien Sung
- Division of Cardiology, Department of Medicine, Healthcare and Management Center, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Yenn-Jiang Lin
- Division of Cardiology, Department of Medicine, Healthcare and Management Center, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Hsin-Bang Leu
- Division of Cardiology, Department of Medicine, Healthcare and Management Center, Taipei, Taiwan.,Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan.,Institute of Clinical Medicine and Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan.,Healthcare and Management Center, Taipei, Taiwan
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7
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Lim SS, Yang YL, Chen SC, Wu CH, Huang SS, Chan WL, Lin SJ, Chen JW, Chou CY, Pan JP, Charng MJ, Chen YH, Wu TC, Lu TM, Hsu PF, Huang PH, Cheng HM, Huang CC, Sung SH, Lin YJ, Leu HB. Association of variability in uric acid and future clinical outcomes of patient with coronary artery disease undergoing percutaneous coronary intervention. Atherosclerosis 2020; 297:40-46. [PMID: 32062138 DOI: 10.1016/j.atherosclerosis.2020.01.025] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 01/09/2020] [Accepted: 01/29/2020] [Indexed: 12/24/2022]
Abstract
BACKGROUND AND AIMS Hyperuricemia is independently associated with cardiovascular disease (CVD) and is considered to be one of the major risk factors for CVD. However, the impact of inter-visit uric acid (UA) variability on cardiovascular risk remains undetermined. METHODS We enrolled 3202 patients with coronary artery disease (CAD), who received successful coronary intervention, in a cohort from Taipei Veterans General Hospital from 2006 to 2015. All post-baseline visits UA measurements using standard deviation (SD) were analyzed to correlate with long-term outcome. The primary outcome was the composite of cardiac death, nonfatal MI, nonfatal stroke (MACE). The secondary event was MACE and hospitalization for heart failure. RESULTS During an average 65.06 ± 32.1-month follow-up, there were 66 cardiovascular deaths, 175 nonfatal myocardial infarctions, 64 nonfatal strokes, 287 hospitalizations for heart failure, and 683 revascularization procedures. There was a linear association between high UA SD and future adverse events. Compared to the lowest quartile SD, subjects in the highest quartile SD had a higher risk of MACE (HR: 2.53, 95% CI: 1.78-3.59), myocardial infarction (HR: 2.43, 95% CI: 1.53-3.86), cardiovascular death (HR: 6.45, 95% CI: 2.52-16.55), heart failure-related hospitalization (HR: 3.43, 95% CI: 2.32-5.05), and total major CV events (HR: 2.72, 95% CI: 2.09-3.56). Furthermore, compared to the average achieved on-treatment UA value, increasing UA SD had a stronger association of higher risk of developing MACE (HR: 1.51, 95% CI: 1.36-1.68), myocardial infarction (HR: 1.37, 95% CI: 1.38-1.68), ischemic stroke (HR: 1.43, 95% CI: 1.13-1.82), CV death (HR: 1.77, 95% CI: 1.50-2.11), HF (HR: 1.43, 95% CI: 1.29-1.58), and total major CV events (HR: 1.46, 95% CI: 1.34-1.58). CONCLUSIONS High UA variability is associated with a higher risk of developing future cardiovascular events, suggesting the importance of maintaining stable serum UA levels and avoiding large fluctuations in CAD patients after percutaneous coronary intervention (PCI).
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Affiliation(s)
- Su Shen Lim
- Division of Cardiology, Department of Medicine, Taiwan; Institute of Clinical Medicine and Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Ya-Ling Yang
- Division of Cardiology, Department of Medicine, Taiwan; Faculty of Medicine, Taiwan; Institute of Clinical Medicine and Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Su-Chan Chen
- Division of Cardiology, Department of Medicine, Taiwan; Faculty of Medicine, Taiwan; Institute of Clinical Medicine and Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Cheng-Hsueh Wu
- Division of Cardiology, Department of Medicine, Taiwan; Healthcare and Management Center, Taiwan; Institute of Clinical Medicine and Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Shao-Sung Huang
- Division of Cardiology, Department of Medicine, Taiwan; Healthcare and Management Center, Taiwan; Faculty of Medicine, Taiwan; Institute of Clinical Medicine and Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Wan Leong Chan
- Division of Cardiology, Department of Medicine, Taiwan; Department of Medical Education, Taipei Veterans General Hospital, Taipei, Taiwan; Faculty of Medicine, Taiwan
| | - Shing-Jong Lin
- Division of Cardiology, Department of Medicine, Taiwan; Healthcare and Management Center, Taiwan; Faculty of Medicine, Taiwan; Institute of Clinical Medicine and Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Jaw-Wen Chen
- Division of Cardiology, Department of Medicine, Taiwan; Healthcare and Management Center, Taiwan; Department of Medical Education, Taipei Veterans General Hospital, Taipei, Taiwan; Faculty of Medicine, Taiwan; Institute of Clinical Medicine and Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Chia-Yu Chou
- Division of Cardiology, Department of Medicine, Taiwan
| | - Ju-Pin Pan
- Division of Cardiology, Department of Medicine, Taiwan; Faculty of Medicine, Taiwan; Institute of Clinical Medicine and Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Min-Ji Charng
- Division of Cardiology, Department of Medicine, Taiwan; Faculty of Medicine, Taiwan; Institute of Clinical Medicine and Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Ying-Hwa Chen
- Division of Cardiology, Department of Medicine, Taiwan; Faculty of Medicine, Taiwan; Institute of Clinical Medicine and Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Tao-Cheng Wu
- Division of Cardiology, Department of Medicine, Taiwan; Faculty of Medicine, Taiwan; Institute of Clinical Medicine and Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Tse-Min Lu
- Division of Cardiology, Department of Medicine, Taiwan; Faculty of Medicine, Taiwan; Institute of Clinical Medicine and Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Pai-Feng Hsu
- Division of Cardiology, Department of Medicine, Taiwan; Faculty of Medicine, Taiwan; Institute of Clinical Medicine and Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Po-Hsun Huang
- Division of Cardiology, Department of Medicine, Taiwan; Faculty of Medicine, Taiwan; Institute of Clinical Medicine and Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Hao-Min Cheng
- Division of Cardiology, Department of Medicine, Taiwan; Department of Medical Education, Taipei Veterans General Hospital, Taipei, Taiwan; Faculty of Medicine, Taiwan; Institute of Clinical Medicine and Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Chin-Chou Huang
- Division of Cardiology, Department of Medicine, Taiwan; Department of Medical Education, Taipei Veterans General Hospital, Taipei, Taiwan; Faculty of Medicine, Taiwan; Institute of Clinical Medicine and Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Shih-Hsien Sung
- Division of Cardiology, Department of Medicine, Taiwan; Faculty of Medicine, Taiwan; Institute of Clinical Medicine and Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Yenn-Jiang Lin
- Division of Cardiology, Department of Medicine, Taiwan; Faculty of Medicine, Taiwan; Institute of Clinical Medicine and Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Hsin-Bang Leu
- Division of Cardiology, Department of Medicine, Taiwan; Healthcare and Management Center, Taiwan; Faculty of Medicine, Taiwan; Institute of Clinical Medicine and Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan.
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Lu DY, Lin CP, Wu CH, Cheng TM, Pan JP. Plasma haptoglobin level can augment NT-proBNP to predict poor outcome in patients with severe acute decompensated heart failure. J Investig Med 2018; 67:20-27. [PMID: 30287475 DOI: 10.1136/jim-2018-000710] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/25/2018] [Indexed: 12/31/2022]
Abstract
To evaluate the use of plasma haptoglobin (Hp) levels and N-terminal pro-B-type natriuretic peptide (NT-proBNP) in predicting survival in patients with severe acute decompensated heart failure (AHF). Management of AHF is challenging. Identifying markers associated with patient prognosis in this disease is clinically important. In this prospective observational study, plasma Hp and NT-proBNP levels were measured. Receiver operating characteristic (ROC) curves were used to identify cut-offs of Hp and NT-proBNP with the greatest specificity and sensitivity for predicting overall survival and cardiovascular-related survival. The cut-off values were tested in patients with AHF (n=41). The cut-off value with the greatest specificity and sensitivity with respect to overall survival and for cardiovascular-related survival for Hp was 177. 1 ng/mL for both outcomes and for NT-proBNP was 34 246.0 pg/mL and 11 848.5 ng/mL, respectively. Using these cut-off values, this study found that patients with lower baseline Hp levels (<177. 1 ng/mL) or higher baseline NT-proBNP (≥34 246 pg/mL) were more likely to have shorter overall survival. Similarly, patients with <177. 1 ng/mL of Hp and ≥11 848.5 pg/mL of NT-proBNP had the highest risk of death related to cardiovascular disease. Our findings indicate that Hp and NT-proBNP using specific cut-off values for AHF can be used to determine risk of survival in these patients.
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Affiliation(s)
- Dai-Yin Lu
- Divisionof Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC.,Schoolof Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Chih-Pei Lin
- Institute of Biotechnology in Medicine, National Yang-Ming University, Taipei, Taiwan, ROC.,Section of Central Laboratory, Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Cheng-Hsueh Wu
- Schoolof Medicine, National Yang-Ming University, Taipei, Taiwan, ROC.,Department of Critical Care, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Tsai-Mu Cheng
- Graduate Institute of Translational Medicine, College of Medicine and Technology Taipei Medical University, Taipei, Taiwan, ROC
| | - Ju-Pin Pan
- Divisionof Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC.,Schoolof Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
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9
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Teng HI, Sung SH, Huang SS, Pan JP, Lin SJ, Chan WL, Lee WL, Lu TM, Wu CH. The impact of successful revascularization of coronary chronic total occlusions on long-term clinical outcomes in patients with non-ST-segment elevation myocardial infarction. J Interv Cardiol 2018; 31:302-309. [PMID: 29495125 DOI: 10.1111/joic.12501] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Revised: 01/11/2018] [Accepted: 01/18/2018] [Indexed: 01/17/2023] Open
Abstract
OBJECTIVES The purpose of this study was to assess the long-term clinical impact of revascularization of coronary concomitant coronary chronic total occlusion (CTO) in patients with Non-ST-segment elevation myocardial infarction (NSTEMI). BACKGROUND CTO is associated with poorer prognosis in patients with NSTEMI. The evidence of revascularization of CTO in patients with NSTEMI is still conflicting. METHODS Consecutive patients with NSTEMI and CTO who underwent percutaneous coronary intervention (PCI) within 72 h of admission from 2006 to 2015 were retrospectively recruited and analyzed. A total of 967 patients underwent PCI for NSTEMI. Among them, 106 (11%) patients had concomitant CTO and were recruited for analysis. CTO lesions were revascularized successfully in 67 (63.2%) patients (successful CTO PCI group), while the CTO in the remaining 39 patients were either not attempted or failed (No/failed CTO PCI group). RESULTS The 30-day cardiac death and major adverse cardiac events (MACE) were significantly lower in the successful CTO PCI group (both cardiac death and MACE were 3% vs 30%, P < 0.001, respectively). A landmark analysis set at 30th day for 30-day survivals was performed. After a mean of 2.5-year follow-up, the long-term cardiac death was still significantly lower (16.9% vs 42.3%, P < 0.001), whereas the MACE showed a trend toward lower incidence (26.2% vs 40.7%, P = 0.051) in the successful CTO PCI group. In multivariate Cox regression analysis, successful revascularization of CTO is an independent protective predictor for long-term cardiac death (HR 0.310, 95% CI, 0.109-0.881, P = 0.028) in all population and in propensity-score matched cohort (P = 0.007). CONCLUSIONS Successful revascularization of CTO was associated with reduced risk of long-term cardiac death in patients with NSTEMI and concomitant CTO.
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Affiliation(s)
- Hsin-I Teng
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute of Clinical Medicine, and Cardiovascular Research Institute, National Yang-Ming University, Taipei, Taiwan
| | - Shih-Hsien Sung
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Shao-Sung Huang
- Health Care and Management Center, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Ju-Pin Pan
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute of Clinical Medicine, and Cardiovascular Research Institute, National Yang-Ming University, Taipei, Taiwan
| | - Shing-Jong Lin
- Institute of Clinical Medicine, and Cardiovascular Research Institute, National Yang-Ming University, Taipei, Taiwan.,Health Care and Management Center, Taipei Veterans General Hospital, Taipei, Taiwan.,Department of Medical Research and Education, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Wan-Leong Chan
- Institute of Clinical Medicine, and Cardiovascular Research Institute, National Yang-Ming University, Taipei, Taiwan.,Health Care and Management Center, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Wen-Lieng Lee
- Institute of Clinical Medicine, and Cardiovascular Research Institute, National Yang-Ming University, Taipei, Taiwan.,Division of Interventional Cardiology, Cardiovascular Center, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Tse-Min Lu
- Institute of Clinical Medicine, and Cardiovascular Research Institute, National Yang-Ming University, Taipei, Taiwan.,Health Care and Management Center, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Cheng-Hsueh Wu
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute of Clinical Medicine, and Cardiovascular Research Institute, National Yang-Ming University, Taipei, Taiwan.,Department of Critical Care Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
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10
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Liu CM, Wu CH, Pan JP. TCTAP C-153 Iatrogenic Left Main Coronary Artery Dissection. J Am Coll Cardiol 2017. [DOI: 10.1016/j.jacc.2017.03.382] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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11
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Chiang KH, Kao YT, Leu HB, Huang PH, Huang SS, Cheng TM, Pan JP. Higher post-acute myocardial infarction plasma haptoglobin level is associated with poor long-term overall survival. Int J Cardiol 2016; 229:102-107. [PMID: 27913007 DOI: 10.1016/j.ijcard.2016.11.220] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Accepted: 11/07/2016] [Indexed: 10/20/2022]
Abstract
AIM To evaluate the association of post-acute myocardial infarction (AMI) plasma haptoglobin (Hp) levels with long-term overall survival in AMI patients. METHODS AND RESULTS Patients who were diagnosed of AMI were recruited and their Hp phenotypes and plasma levels were determined. According to previously reported cutoff point for Hp level (288.4ng/ml), patients were classified as higher Hp group (>288.4ng/ml) and lower Hp group (≤288.4ng/ml). The primary outcome was overall survival. This study recruited and followed a total of 117 patients for a median of 11.0 (3.2-17.6) years. Higher Hp group had 46 patients (39.3%) and lower Hp group had 71 patients (60.7%). Twelve patients had Hp 1-1 (10.3%), 50 with Hp 2-1 (42.7%), and 55 with Hp 2-2 (47.0%). The lower Hp group had significantly better overall survival (174.1 [51.6-212.5] vs. 106.5 [22.2-209.1], P=0.037). There was no significant difference in overall survival between the three phenotype groups (P=0.477). Multivariate regression analysis revealed that increased age (adjusted HR=1.06, 95% CI: 1.03-1.10, P<0.001) and higher Hp level (adjusted HR=1.65, 95%=1.02-2.67, P=0.040) were significantly associated with poor overall survival. CONCLUSION Higher post-AMI plasma Hp level was independently associated with poor overall survival in AMI patients. No significant difference in overall survival was noted between three Hp phenotype groups. Acute phase Hp level might reflect the severity of oxidative stress during inflammation process.
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Affiliation(s)
- Kuang-Hsing Chiang
- Division of Cardiology and Cardiovascular Research Center, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, Taiwan; Graduate Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, Taipei, Taiwan
| | - Yung-Ta Kao
- Division of Cardiology and Cardiovascular Research Center, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, Taiwan
| | - Hsin-Bang Leu
- Division of Cardiology, Department of Internal Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Healthcare and Service Center, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan; Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Po-Hsun Huang
- Division of Cardiology, Department of Internal Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan; Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Shao-Sung Huang
- Division of Cardiology, Department of Internal Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Healthcare and Service Center, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan; Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Tsai-Mu Cheng
- Institute for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan.
| | - Ju-Pin Pan
- Division of Cardiology, Department of Internal Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan.
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12
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Wu HX, Li KM, Ai L, Pan JP, Wang Y, Teng XM. The oocyte-to-baby rate of day 2, day 3 versus day 5 embryo transfer: a retrospective study. CLIN EXP OBSTET GYN 2015; 42:653-656. [PMID: 26524817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVES To investigate whether the time of embryo transfer (ET) affect the oocyte-to-baby rate. MATERIALS AND METHODS The database was retrospectively analyzed including total number of oocytes collected and corresponding oocyte-to-live baby born (LBB) rate. Then the relationship between different time of embryo transfer and oocyte-to-baby rate was compared. In a year period all patients undergoing infertility treatment were included in the study. The outcome parameters were total number of oocytes collected and corresponding oocyte-to-LBB. RESULTS For patients under the age of 35 years, there was no increase in oocyte-to-LBB regardless of the time of ET. For patients older than 35 years, the oocyte use rate increased significantly when embryo was transferred on day 2. Oocyte-to-baby rates were also analyzed after grouping patients on the number of oocytes retrieved per cycle. For patients < 35 years, the oocyte- to -LBB rate increased significantly on day 3 if < ten oocytes were obtained. whereas for patients > 35 years, the oocyte-to-baby rate was best on day 2 when about 15 oocytes were retrieved. CONCLUSIONS This retrospective analysis demonstrated the relationship between the time of ET and ooctye-to-baby rate that is indicative of a more biologically efficient reproductive system.
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Lee CW, Cheng TM, Lin CP, Pan JP. Plasma haptoglobin concentrations are elevated in patients with coronary artery disease. PLoS One 2013; 8:e76817. [PMID: 24130793 PMCID: PMC3793939 DOI: 10.1371/journal.pone.0076817] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Accepted: 08/28/2013] [Indexed: 01/06/2023] Open
Abstract
Inflammation underlies the development and progression of coronary artery plaques. Haptoglobin (Hp) is an acute phase protein, the synthesis of which is increased during inflammation. The aim of this study was to investigate plasma Hp concentrations and phenotype in patients with coronary artery disease (CAD). We recruited 359 patients with fixed luminal stenosis ≥50% in at least one coronary artery (CAD group) and 83 patients with luminal stenosis ≤40%, normal ejection fraction, and normal regional wall motion (control group). Plasma Hp concentrations were measured using a phenotype-specific enzyme-linked immunosorbent assay. Hp phenotype was determined by native polyacrylamide gel electrophoresis. Plasma lipid concentrations were measured. Plasma Hp concentrations were significantly higher in the CAD compared with the control group (262.4±144.2 vs 176.0±86.7 ng/mL, P<0.001); however, there was no between group difference in the distribution of Hp phenotype (1-1 = 7.5% vs 7.2%; 2-1 = 40.4% vs 42.2%; 2-2 = 52.1% vs 50.6%). Stepwise multivariate logistic regression revealed that high Hp concentrations (odds ratio [OR] = 5.865), male sex (OR = 3.689), hypertension (OR = 2.632), diabetes mellitus (OR = 3.300), and low-density lipoprotein concentrations (OR = 1.480) were independently associated with CAD (all P<0.05). Hp phenotype was not associated with CAD. Plasma Hp concentrations were significantly correlated with the severity of luminal stenosis (r = 0.236, P<0.001). Our findings suggest that plasma Hp concentrations may be elevated in patients with CAD. There does not appear to be any relationship between Hp phenotype and CAD.
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Affiliation(s)
- Chin-Wei Lee
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Tao-Yuan Branch, Tao-Yuan, Taiwan, ROC
| | - Tsai-Mu Cheng
- Graduate Institute of Translational Medicine, College of Medicine and Technology, Taipei Medical University, Taipei, Taiwan, ROC
| | - Chih-Pei Lin
- Biochemistry Section, Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Institute of Biotechnology in Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Ju-Pin Pan
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
- * E-mail:
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Huang SS, Chen YH, Lu TM, Wu TC, Charng MJ, Chen JW, Pan JP, Lin SJ. Effect of invasive strategy on different genders of chinese patients with non-ST-elevation myocardial infarction. Catheter Cardiovasc Interv 2011; 79:946-55. [DOI: 10.1002/ccd.23166] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2011] [Accepted: 03/19/2011] [Indexed: 12/22/2022]
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15
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Cheng TM, Lee TC, Tseng SH, Chu HL, Pan JP, Chang CC. Human haptoglobin phenotypes and concentration determination by nanogold-enhanced electrochemical impedance spectroscopy. Nanotechnology 2011; 22:245105. [PMID: 21543834 DOI: 10.1088/0957-4484/22/24/245105] [Citation(s) in RCA: 9] [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] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Haptoglobin (Hp) is an acute phase protein that binds free hemoglobin (Hb), preventing Hb-induced oxidative damage in the vascular system. There are three phenotypes in human Hp, whose heterogeneous polymorphic structures and varying concentrations in plasma have been attributed to the cause of diseases and outcome of clinical treatments. Different phenotypes of Hp may be composed of the same subunits but different copy numbers, rendering their determination difficult by a single procedure. In this study, we have developed a simple, fast, reliable and sensitive method, using label-free nanogold-modified bioprobes coupled with self-development electrochemical impedance spectroscopy (EIS). By this method, probe surface charge transfer resistance is detected. The relative charge transfer resistance ratios for Hp 1-1, Hp 2-1 and Hp 2-2 were characterized. We were able to determine protein size difference within 3 nm, and the linear region of the calibration curve for Hp levels in the range of 90 pg ml(-1) and 90 µg ml(-1) (∼1 fM to 1 pM). We surmise that similar approaches can be used to investigate protein polymorphism and altered protein-protein interaction associated with diseases.
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Affiliation(s)
- Tsai-Mu Cheng
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan, Republic of China
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16
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Pan JP, Cheng TM, Shih CC, Chiang SC, Chou SC, Mao SJ, Lai ST. Haptoglobin phenotypes and plasma haptoglobin levels in patients with abdominal aortic aneurysm. J Vasc Surg 2011; 53:1189-94. [DOI: 10.1016/j.jvs.2010.10.122] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2010] [Revised: 10/26/2010] [Accepted: 10/27/2010] [Indexed: 12/28/2022]
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Pan JP, Wei SLP, Chiang SC, Lee-Chen GJ. Association of apolipoprotein J polymorphism 1598delT with coronary artery disease and lipoprotein levels. Cardiology 2011; 118:83-92. [PMID: 21508640 DOI: 10.1159/000326852] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2010] [Accepted: 01/31/2011] [Indexed: 11/19/2022]
Abstract
OBJECTIVES To investigate a polymorphism of the apolipoprotein J (APOJ) gene in relation to coronary artery disease (CAD) and lipid variables in a Chinese male population of genetically unrelated individuals. METHODS In this study, we recruited 126 control male subjects and 237 CAD male patients. CAD was defined as a fixed stenotic lesion with luminal narrowing ≥50% in at least one of the major or minor coronary arteries. In cases with documented myocardial infarction, only those rated as fully recovered for more than 3 months were enrolled. Patients with acute or chronic infectious diseases and those with malignancies were excluded. All subjects with a fasting serum triglyceride level higher than 300 mg/dl were likewise excluded. RESULTS We identified a single nucleotide polymorphism, 1598delT, and showed its association with CAD. Subjects with the I/I genotype showed a significantly higher CAD risk compared to those with the D/D genotype (OR 2.34, 95% CI 1.11-4.94, p = 0.026). Patients with the I/I genotype also had abnormal levels of high-density lipoprotein-cholesterol and low-density lipoprotein-cholesterol associated with CAD. CONCLUSIONS Our data indicated that the APOJ single nucleotide polymorphism (1598delT) is associated with risk factors for CAD in a Chinese population.
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Affiliation(s)
- Ju-Pin Pan
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital and School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC.
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18
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Cheng TM, Mao SJT, Lai ST, Chang CC, Yang MC, Chen NC, Chou SC, Pan JP. Haemoglobin-induced oxidative stress is associated with both endogenous peroxidase activity and H2O2 generation from polyunsaturated fatty acids. Free Radic Res 2010; 45:303-16. [PMID: 21034361 DOI: 10.3109/10715762.2010.532492] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Patients with increased haemolytic haemoglobin (Hb) have 10-20-times greater incidence of cardiovascular mortality. The objective of this study was to evaluate the role of Hb peroxidase activity in LDL oxidation. The role of Hb in lipid peroxidation, H(2)O(2) generation and intercellular adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecule-1 (VCAM-1) was assessed using NaN(3), a peroxidase inhibitor, catalase, a H(2)O(2) decomposing enzyme and human umbilical vein endothelial cells (HUVECs), respectively. Hb induced H(2)O(2) production by reacting with LDL, linoleate and cell membrane lipid extracts. Hb-induced LDL oxidation was inhibited by NaN(3) and catalase. Furthermore, Hb stimulated ICAM-1 and VCAM-1 expression, which was inhibited by the antioxidant, probucol. Thus, the present study suggests that the peroxidase activity of Hb produces atherogenic, oxidized LDL and oxidized polyunsaturated fatty acids (PUFAs) in the cell membrane and reactive oxygen species (ROS) formation mediated Hb-induced ICAM-1 and VCAM-1 expression.
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Affiliation(s)
- Tsai-Mu Cheng
- College of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan, ROC
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Cheng TM, Pan JP, Lai ST, Kao LP, Lin HH, Mao SJT. Immunochemical property of human haptoglobin phenotypes: determination of plasma haptoglobin using type-matched standards. Clin Biochem 2007; 40:1045-56. [PMID: 17583688 DOI: 10.1016/j.clinbiochem.2007.04.018] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2006] [Revised: 04/02/2007] [Accepted: 04/10/2007] [Indexed: 11/18/2022]
Abstract
OBJECTIVES Haptoglobin (Hp) phenotypes 1-1, 2-1, and 2-2 are associated with inflammatory diseases. Since their biochemical structures are rather heterogeneous, it is necessary to accurately determine the plasma Hp levels. DESIGN AND METHODS Immunodiffusion, immunoturbidimetric, and noncompetitive ELISA were conducted to determine the differences in immunoreactivity among Hp phenotypes and to verify that such difference may significantly affect the outcome of Hp determinations. A novel ELISA using phenotype-matched calibrators was performed to compared with a commercial GenWay ELISA kit using a single calibrator in normal healthy males. RESULTS In immunodiffusion and immunoturbidimetric assays, the immunoreactivity of Hp 1-1 was markedly higher than 2-1 and 2-2, while an opposite result was observed using an ELISA. The latter was primarily due to the repeated antigenic epitopes in polymeric 2-1 and 2-2. Thus, Hp levels could be significantly over- or underestimated depending on the method. An accurate ELISA could be achieved when using each type-specific Hp calibrator matched to each type subject. We show the mean levels of Hp 1-1 subjects (n=16; 184+/-42 mg/dL) to be significantly and differentially greater than 2-1 (n=28; 153+/-55 mg/dL) (p<0.05) and 2-2 (n=24; 93+/-54 mg/dL) (p<0.01) subjects. CONCLUSIONS Due to the diverse immunochemical structure among the Hp types, phenotyping should be performed in all the patients and a type-matched Hp calibrator should be used in clinical Hp determination.
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Affiliation(s)
- Tsai-Mu Cheng
- College of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan, ROC
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20
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Cheng TM, Huang PC, Pan JP, Lin KY, Mao SJT. Gel electrophoresis of polyphenol oxidase with instant identification by in situ blotting. J Chromatogr B Analyt Technol Biomed Life Sci 2006; 849:331-6. [PMID: 16973425 DOI: 10.1016/j.jchromb.2006.08.046] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2006] [Revised: 08/19/2006] [Accepted: 08/21/2006] [Indexed: 10/24/2022]
Abstract
Polyphenol oxidase (PPO) or tyrosinase is an important and ubiquitous enzyme responsible for browning in plants and melanization in animals. The molecular size of the plant PPO is varied among the species and its activity can be enhanced by a variety of anionic detergents. In the present study, we developed a simple method for the first-step identification of PPO in fruit and vegetable extracts. First, 3mm chromatographic paper was immersed in 0.5% (w/v) catechol solution as an immobilized PPO substrate. After running the extract with 10% sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE), one side of the glass plate was removed. The plate was immediately laid on top of the dried catechol-paper. A dark-brown band corresponding to PPO was visualized within 1 min and was further confirmed by a conventional Western blot using an antibody prepared against mushroom PPO. It also reveals that some vegetation (such as tomato, radish, and oriental melon) with low or no detectable activity in a conventional enzyme assay actually possessed marked levels of PPO activity when assessed by PAGE-blot. We propose that an inhibitor is associated with PPO in some plants; the inhibitor, however, is dissociated during the electrophoresis. Therefore, in addition to identify the molecular form of PPO, the present technique may explore the existence of PPO inhibitor(s) in plants. The detail of the method with respect to its relevance for searching a natural PPO inhibitor is described and discussed.
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Affiliation(s)
- Tsai-Mu Cheng
- College of Biological Science and Technology, National Chiao Tung University, 75 Po-Ai Street, Hsinchu, Taiwan, ROC
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21
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Lin KY, Wang HH, Lai ST, Pan JP, Chiang AN. ?2-glycoprotein I protects J774A.1 macrophages and human coronary artery smooth muscle cells against apoptosis. J Cell Biochem 2005; 94:485-96. [PMID: 15534879 DOI: 10.1002/jcb.20314] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
beta(2)-Glycoprotein I (beta(2)-GPI) is a plasma glycoprotein with multifactorial relevance to clinical consequences. It was previously indicated that beta(2)-GPI can selectively bind to apoptotic cells. This study was designed to determine the role of beta(2)-GPI in apoptosis. Using an immunohistochemical study, we observed that beta(2)-GPI was co-localized with the apoptotic macrophages and smooth muscle cells (SMCs) of human coronary arteries. The contribution of beta(2)-GPI to apoptotic death was then investigated in vascular cells. Two nitric oxide (NO) donors, S-nitrosoglutathione (GSNO) and S-nitroso-N-acetyl penicillamine (SNAP) were used in this study to trigger apoptosis in J774A.1 macrophages and human coronary artery smooth muscle cells (HCASMC). Cell viability was significantly improved in beta(2)-GPI-treated cells. It was also possible to detect a remarkable inhibitory effect by beta(2)-GPI on the NO-induced apoptosis by preventing nuclear shrinkage. Furthermore, the NO-induced apoptosis was associated with increase in caspase-3 activity and in the protein levels of caspase-3, c-Fos, and c-Jun. However, all these apoptosis-related events were inhibited in vascular cells treated with 200 microg/ml beta(2)-GPI. This is the first study to show that beta(2)-GPI may be important in the prevention of apoptosis in vascular cells.
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Affiliation(s)
- Kae-Yuan Lin
- Institute of Biochemistry, National Yang-Ming University, Taipei 112, Taiwan
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22
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Pan JP, Liu TY, Chiang SC, Lin YK, Chou CY, Chan WL, Lai ST. The value of plasma levels of tumor necrosis factor-alpha and interleukin-6 in predicting the severity and prognosis in patients with congestive heart failure. J Chin Med Assoc 2004; 67:222-8. [PMID: 15357108] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/07/2023] Open
Abstract
BACKGROUND High plasma levels of pro-inflammatory cytokines play an important role in the pathophysiology of congestive heart failure (CHF). Therefore, we conducted a case-control study to determine the correlations between plasma levels of cytokines, i.e., tumor necrosis factor-alpha (TNF-alpha) and interleukin (IL)-6, and the severity and mortality in patients with CHF. METHODS One-hundred and 18 cases (62+/-15 years old) were classified into 3 groups: group 1 comprised 44 control cases with normal coronary arteriogram and left ventriculography and without valvular disorders or cardiomyopathy; group 2 comprised of 37 cases with mild CHF in New York Heart Association (NYHA) functional class (FC) II; group 3 had 37 cases with moderate/severe CHF in NYHA FC III or IV. Pre-catheterization plasma levels of TNF-alpha and IL-6 along with clinical and hemodynamic variables and follow-up data of cardiac death were assessed. RESULTS Patients of group 3 had smaller body mass index, lower systolic and diastolic blood pressures, faster heart rates, higher left ventricular end-diastolic pressure and lowered triglyceride levels than the patients of groups 1 and 2. The plasma levels of TNF-alpha and IL-6 increased significantly in patients of group 3 in comparison with patients of groups 1 and 2 (both p < 0.001). Over the following 1.5 years, 13 patients died. Univariate analysis identified the following variables to be associated with poor prognosis: NYHA FC (p < 0.001), plasma TNF-alpha (p = 0.013), plasma IL-6 (p < 0.001), systolic blood pressure (p = 0.001), heart rate (p = 0.045) and left ventricular end-diastolic pressure (p = 0.021). Multivariate Cox regression analysis identified the independent predictors of cardiac death as FC (p = 0.007) and plasma IL-6 (p = 0.021). CONCLUSIONS Our findings indicate that the plasma levels of IL-6 and TNF-alpha and especially the former, is a useful marker to correlate the progression of severity and late cardiac death in patients with CHF.
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Affiliation(s)
- Ju-Pin Pan
- Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC.
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23
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Chang JH, Pan JP, Tai DY, Huang AC, Li PH, Ho HL, Hsieh HL, Chou SC, Lin WL, Lo E, Chang CY, Tseng J, Su MT, Lee-Chen GJ. Identification and characterization of LDL receptor gene mutations in hyperlipidemic Chinese. J Lipid Res 2003; 44:1850-8. [PMID: 12837857 DOI: 10.1194/jlr.m200470-jlr200] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
DNA screening for LDL receptor mutations was performed in 170 unrelated hyperlipidemic Chinese patients and two clinically diagnosed familial hypercholesterolemia patients. Two deletions (Del e3-5 and Del e6-8), eight point mutations (W-18X, D69N, R94H, E207K, C308Y, I402T, A410T, and A696G), and two polymorphisms (A370T and I602V) were identified. Of these mutations, C308Y and Del e6-8 were found in homozygosity, and D69N and C308Y were seen in unrelated patients. The effects of mutations on LDL receptor function were characterized in COS-7 cells. The LDL receptor level and activity were close to those of wild type in A696G transfected cells. A novel intermediate protein and reduction of LDL receptor activity were seen in D69N transfected cells. For R94H, E207K, C308Y, I402T, and A410T mutations, only approximately 20-64% of normal receptor activities were seen. Conversely, Del e3-5 and Del e6-8 lead to defective proteins with approximately 0-13% activity. Most of the mutant receptors were localized intracellularly, with a staining pattern resembling that of the endoplasmic reticulum and Golgi apparatus (D69N, R94H, E207K, C308Y, and I402T) or endosome/lysosome (A410T and Del e6-8). Molecular analysis of the LDL receptor gene will clearly identify the cause of the patient's hyperlipidemia and allow appropriate early treatment as well as antenatal and family studies.
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Affiliation(s)
- Jui-Hung Chang
- Department of Biology, National Taiwan Normal University, Taipei, Taiwan
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24
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Pan JP, Cheng TM, Chou SC, Lai ST. Vitamin C protects against lysophosphatidylcholine-induced expression of monocyte chemoattractant protein-1 in cultured human umbilical vein endothelial cells. J Formos Med Assoc 2003; 102:151-7. [PMID: 12783131] [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] [Indexed: 03/02/2023] Open
Abstract
BACKGROUND AND PURPOSE It is well documented that oxidized low-density lipoproteins (LDLs) can stimulate human vascular endothelial cells to produce monocyte chemoattractant protein-1 (MCP-1). Vitamin C is known to be an important antioxidant for vasodilatation. The purpose of this study was to determine whether pretreatment with vitamin C could protect against oxidized-LDL-induced expression of MCP-1 in cultured human umbilical vein endothelial cells (HUVECs). METHODS Cultured HUVECs were used for desired experiments before passage 4. Lysophosphatidylcholine (lysoPC), an oxidized component of LDL, was designated as the stimulator for MCP-1 synthesis from cultured HUVECs. MCP-1 concentrations in the cultured media were determined by enzyme-linked immunosorbent assay. MCP-1 RNA was evaluated by a semi-quantitative reverse transcriptase-polymerase chain reaction. RESULTS HUVECs secreted MCP-1 within 30 minutes after exposure to 50 microM lysoPC. Compared with samples treated with lysoPC alone, pretreatment with vitamin C in concentrations of 50, 100, 150, and 200 microM, reduced levels of MCP-1 in the culture medium by 44%, 51%, 60%, and 67%, respectively, while levels of MCP-1 mRNA decreased by 15%, 18%, 80%, and 82%, respectively. CONCLUSIONS Our findings imply that pretreatment with vitamin C can suppress lysoPC-induced expression and secretion of MCP-1 in cultured HUVECs. Therefore, vitamin C is protective against lysoPC-mediated inflammatory insults to the vascular endothelium in vitro.
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Affiliation(s)
- Ju-Pin Pan
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, School of Medicine, National Yang-Ming University, Taipei, Taiwan
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25
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Lin KY, Chen YL, Shih CC, Pan JP, Chan WE, Chiang AN. Contribution of HDL-apolipoproteins to the inhibition of low density lipoprotein oxidation and lipid accumulation in macrophages. J Cell Biochem 2002; 86:258-67. [PMID: 12111995 DOI: 10.1002/jcb.10210] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
High-density lipoprotein (HDL) is known as a protective factor against atherosclerosis. However, whether HDL-apolipoproteins (apo-HDL) contribute to the protection in arterial cells remains unclear. The localization patterns of human apolipoproteins in atherosclerotic arteries were determined using immunohistochemical examination. The results indicate that several apolipoproteins are retained in component cells of the coronary artery walls. To elucidate the possible roles of apo-HDL in the protection of atherosclerotic lesion formation, we investigated the effects of apo-HDL on the formation of conjugated diene (CD) in a cell-free system and thiobarbituric acid-reactive substances (TBARS) in the medium of a macrophage-mediated LDL oxidation system. The results showed that apo-HDL significantly exerted an inhibitory effect on LDL lipid oxidation in vitro. In addition, apo-HDL decreased cholesterol influx but enhanced cholesterol efflux from J774 macrophages in a dose-dependent manner. These results are consistent with the notion that there is reduced intracellular lipid accumulation in apo-HDL treated macrophages. These data provide a direct evidence for apo-HDL in protecting LDL from oxidative modification and in reducing the accumulation of cholesterol and lipid droplets by J774 macrophages.
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Affiliation(s)
- Kae-Yuan Lin
- Institute of Biochemistry, National Yang-Ming University, Taipei 112, Taiwan, Republic of China
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26
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Pan JP, Lai ST, Chiang SC, Chou SC, Chiang AN. The risk of coronary artery disease in population of Taiwan is associated with Cys-Ser 311 polymorphism of human paraoxonase (PON)-2 gene. Zhonghua Yi Xue Za Zhi (Taipei) 2002; 65:415-21. [PMID: 12433026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
Abstract
BACKGROUND Paraoxonase (PON), a high density lipoprotein (HDL)-associated enzyme, is capable of inhibiting low density lipoprotein (LDL) oxidation by destroying the biologically active phospholipids in oxidatively modified LDL. An increased risk of coronary artery disease (CAD) has shown to associate with polymorphisms of PON gene (PON1) in different population. The risk of CAD associated with the other PON1-like gene, designated PON2, which has a similar function and is structurally related to PON1, is least discussed. A population-based case-control study was conducted to investigate the association between CAD and the polymorphisms at two common codons 148 and 311 of PON2 in the population of Taiwan. METHODS Totally 364 unrelated, angiographically proved CAD-positive patients (338 male and 26 female) and 337 unrelated, CAD-free control subjects (249 male and 88 female) enrolled in this study. Lipids and lipoproteins profile and the association of PON2 genotypes and allele frequencies were analyzed in all study cohorts. RESULTS The plasma levels of HDL-cholesterol and apoA-I were significantly lower in patients with CAD than in control subjects (both p = 0.0001). There was no difference in the genotype frequency distribution at codon 148 of PON2 between CAD patients and the controls. However, age-, sex- and diabetes-adjusted odds ratios for individuals with the SS genotype of the codon 311 polymorphism (Cys --> Ser, PON2*C allele --> PON2*S allele) showed a 4.6-fold higher risk of CAD (95% CI = 1.6-15.3, p = 0.006) they ran. Also, in the control subjects, PON2*C allele carriers (CC and CS genotypes) had higher plasma levels of HDL than cases with the SS genotypes (p = 0.035 and p = 0.012, respectively). CONCLUSIONS Our data implicate that the genotypic variation at codon 311 of PON2 contributes to the susceptibility of CAD in the population of Taiwan.
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Affiliation(s)
- Ju-Pin Pan
- Department of Internal Medicine, Taipei Veterans General Hospital, Taiwan, ROC.
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27
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Xia DJ, Zhang WP, Zheng S, Wang J, Pan JP, Wang Q, Zhang LH, Hamada H, Cao X. Lymphotactin cotransfection enhances the therapeutic efficacy of dendritic cells genetically modified with melanoma antigen gp100. Gene Ther 2002; 9:592-601. [PMID: 11973635 DOI: 10.1038/sj.gt.3301694] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2002] [Accepted: 08/06/2001] [Indexed: 12/14/2022]
Abstract
Lymphotactin (Lptn) is a C chemokine that attracts T cells and NK cells. Dendritic cells (DC) are highly efficient, specialized antigen-presenting cells and antigen-pulsed DC has been regarded as promising vaccines in cancer immunotherapy. The aim of our present study is to improve the therapeutic efficacy of DC-based tumor vaccine by increasing the preferential chemotaxis of DC to T cells. In this study, Lptn and/or melanoma-associated antigen gp100 were transfected into mouse bone marrow-derived DC, which were used as vaccines in B16 melanoma model. Immunization of C57BL/6 mice with DC adenovirally cotransfected with Lptn and gp100 (Lptn/gp100-DC) could enhance the cytotoxicities of CTL and NK cells, increase the production of IL-2 and interferon-gamma significantly, as compared with immunization with gp100-DC, Lptn-DC, LacZ-DC, DC or PBS counterparts. The Lptn/gp100-DC immunized mice exhibited resistance to tumor challenge most effectively. It was found that the tumor mass of mice vaccinated by Lptn/gp100-DC showed obvious necrosis and inflammatory cell infiltration. In vivo depletion analysis demonstrated that CD8(+) T cells are the predominant T cell subset responsible for the antitumor effect of Lptn/gp100-DC and CD4(+) T cells were necessary in the induction phase of tumor rejection, while NK cells were less important although they participated in the antitumor response either in the induction phase or in the effector phase. In the murine model with the pre-established subcutaneous B16 melanoma, immunization with Lptn/gp100-DC inhibited the tumor growth most significantly when compared with other counterparts. These findings provide a potential strategy to improve the efficacy of DC-based tumor vaccines.
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Affiliation(s)
- D J Xia
- Institute of Immunology, Zhejiang University, Hangzhou, PR China
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28
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Chen LC, Chen YH, Lin SJ, Chan WL, Hsu NW, Pan JP, Charng MJ, Wang SP, Ding PYA, Chang MS. Clinical and angiographic determinants of adverse cardiac events in patients with stent restenosis. Catheter Cardiovasc Interv 2002; 55:331-7. [PMID: 11870937 DOI: 10.1002/ccd.10088] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Patients with angiographically proven stent restenoses do not necessarily develop adverse cardiac events. Which clinical, procedural, or angiographic parameters relate to the development of adverse cardiac events among these patients has not been determined. This study included 155 patients (167 stented lesions) with angiographically proven restenosis (> or = 50% diameter stenosis) within the stent or at its margins in routine follow-up angiograms that was obtained at 6.5 +/- 3.6 months after successful stenting. Thirty-six patients (22%) had adverse cardiac events (including unstable angina necessitating target lesion revascularization, acute myocardial infarction, or cardiac death) during follow-up and 119 patients (78%) were event-free. These two groups of patients were compared to determine the parameters related to adverse cardiac events. Univariate determinants of adverse events included hypertension (P = 0.023), unstable angina at initial presentation (P = 0.002), target lesion in proximal left anterior descending artery (P = 0.041), TIMI grade 0-2 flow in follow-up angiograms (p < 0.001), impaired left ventricular function at follow-up (P = 0.002), follow-up minimal lumen diameter < or = 0.6 mm (P = 0.003), follow-up diameter stenosis > 75% (P = 0.005), late loss > 2 mm (P = 0.01), and loss index > 1.127 (P < 0.001). Multivariate analysis demonstrated hypertension (odds ratio, OR, = 3.6; P = 0.019), unstable angina at initial presentation (OR = 2.6; P = 0.007), TIMI grade 0-2 flow at follow-up (OR = 2.8; P = 0.05), impaired LV function at follow-up (OR = 4.2; P = 0.004), and loss index > 1.127 (OR = 3.6; P = 0.017) as independent risk factors for adverse cardiac events. Classification and regression tree analysis identified loss index > 1.127 and impaired LV function as the two strongest determinant of adverse cardiac event. Therefore, hypertensive patients whose initial clinical presentation were unstable angina should be managed carefully to optimize the angiographic results and, most importantly, followed up more closely for development of impaired LV function after coronary stenting in order to prevent the occurrence of adverse cardiac event at follow-up.
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Affiliation(s)
- Lung-Ching Chen
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
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29
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Zhang LH, Pan JP, Yao HP, Sun WJ, Xia DJ, Wang QQ, He L, Wang J, Cao X. Intrasplenic transplantation of IL-18 gene-modified hepatocytes: an effective approach to reverse hepatic fibrosis in schistosomiasis through induction of dominant Th1 response. Gene Ther 2001; 8:1333-42. [PMID: 11571570 DOI: 10.1038/sj.gt.3301524] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2001] [Accepted: 06/11/2001] [Indexed: 01/08/2023]
Abstract
Hepatic fibrosis is a common outcome of chronic liver diseases. In schistosomiasis, chronic parasite egg-induced granuloma formation can lead to fibrosis, which is immunologically characterized by the dominant Th2 response. Recently, it has been shown that gene therapy is an attractive approach for the treatment of hepatic fibrosis. To investigate the antifibrotic effects of IL-18 gene transfer, a normal murine liver cell line BNL.CL2 was transfected with recombinant adenovirus encoding mouse IL-18, and then intrasplenically transplanted into mice infected with Schistosoma japonicum (S. japonicum). Our data show that IL-18 gene-modified hepatocytes intrasplenically transplanted into mice can effectively express IL-18 in the liver and in peripheral blood. Intrasplenic transplantation of IL-18 gene-modified hepatocytes into S. japonicum-infected mice could result in a significantly increased IFN-gamma and IL-2 but decreased IL-4 and IL-10 concentration both in the liver and in the serum, suggesting that the dominant Th2 response in mice with schistosomiasis could be reversed by this intervention. Consistent with the changes in Th1 and Th2 cytokine production, mice intrasplenically transplanted with IL-18 gene-modified hepatocytes developed much less hepatic fibrosis at 20 weeks after infection, which was evaluated by liver content of hydroxyproline, collagens, and hepatic mRNA expression of procollagens. These data indicate that intrasplenic transplantation of IL-18 gene-modified hepatocytes can be a candidate for therapeutic intervention in hepatic fibrosis through induction of a dominant Th1 response.
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Affiliation(s)
- L H Zhang
- Institute of Immunology, Zhejiang University, 353 Yan'an Road, Hangzhou 310031, PR China
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30
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Lin KY, Pan JP, Yang DL, Huang KT, Chang MS, Ding PY, Chiang AN. Evidence for inhibition of low density lipoprotein oxidation and cholesterol accumulation by apolipoprotein H (beta2-glycoprotein I). Life Sci 2001; 69:707-19. [PMID: 11476192 DOI: 10.1016/s0024-3205(01)01164-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Low density lipoprotein (LDL) oxidation and lipid accumulation are thought to enhance the progression of atherosclerosis. Apolipoprotein H (apoH) has been implicated in the development of human atherosclerosis. However, the roles of apoH in the oxidative modification of LDL and cellular accumulation of lipid constituents remained uncharacterized. In this study, the level of plasma apoH was found to be significantly associated with the oxidative susceptibility of LDL in human subjects. Plasma levels of apoH were positively correlated with the lag time but negatively correlated with LDL oxidation rate in conjugated diene formation. By using a J774 A.1 macrophage culture system, we found that apoH could not only inhibit the formation of conjugated diene and thiobarbituric acid-reactive substances, but also reduce the electrophoretic mobility of oxidized LDL. Furthermore, apoH decreased cellular accumulation of cholesterol via a reduction in cholesterol influx and an increase in cholesterol efflux. This is the first demonstration that apoH appears to have "antioxidant"-like effects on LDL oxidation. The results also suggest that apoH can inhibit the translocation of cholesterol from extracellular pools to macrophages, suggesting that apoH may play an important role in the prevention of atherosclerosis.
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Affiliation(s)
- K Y Lin
- Institute of Biochemistry, National Yang-Ming University, Taipei, Taiwan, ROC
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31
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Wang Q, Yu H, Ju DW, He L, Pan JP, Xia DJ, Zhang LH, Cao X. Intratumoral IL-18 gene transfer improves therapeutic efficacy of antibody-targeted superantigen in established murine melanoma. Gene Ther 2001; 8:542-50. [PMID: 11319621 DOI: 10.1038/sj.gt.3301428] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2000] [Accepted: 01/15/2001] [Indexed: 01/12/2023]
Abstract
Antibody-targeted superantigen C215Fab-SEA is a fusion protein of staphylococcal enterotoxin A (SEA) and the Fab region of the tumor-reactive C215 mAb. It can trigger CTL against C215 antigen-positive tumor cells and induce tumor-suppressive cytokines. However, the antitumor effect of C215Fab-SEA is not satisfactory because of suboptimal production of Th1 cytokines after repeated administration. Interleukin 18 (IL-18) is a novel cytokine with profound effects on Th1 cellular response. In this study, we showed that adenovirus-mediated intratumoral IL-18 gene transfer strongly improved the therapeutic efficacy of C215Fab-SEA in the pre-established C215 antigen-expressing B16 melanoma murine model. More significant tumor inhibition and prolonged survival time were observed in tumor-bearing mice received combined therapy of C215Fab-SEA and Ad IL-18 than those of mice treated with C215Fab-SEA or AdIL-18 alone. Combination therapy augmented NK and CTL activities of tumor-bearing mice more markedly. The production of IL-2 and IFN-gamma also increased more significantly. More potent antitumor effect of combined therapy was observed in IL-10 KO mice with enhanced Th1 response. Our data demonstrated that the antitumor effect of C215Fab-SEA immunotherapy could be potentiated significantly by combination with intratumoral IL-18 gene transfer through more efficient activation of Th1 immune responses.
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Affiliation(s)
- Q Wang
- Institute of Immunology, Zhejiang University, 353 Yan'an Road, Hangzhou, 310031, PR China
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32
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Teng YN, Pan JP, Chou SC, Tai DY, Lee-Chen GJ. Familial defective apolipoprotein B-100: detection and haplotype analysis of the Arg(3500)-->Gln mutation in hyperlipidemic Chinese. Atherosclerosis 2000; 152:385-90. [PMID: 10998466 DOI: 10.1016/s0021-9150(99)00481-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [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: 11/15/2022]
Abstract
Familial defective apolipoprotein (apo) B-100 (FDB) is caused by R3500Q mutation of the apo B gene resulting in decreased binding of LDL to the LDL receptor. Two other apo B mutations, R3500W and R3531C, affecting binding are known to date. We screened the apo B gene segment around codon 3500 by heteroduplex analysis and single strand conformation polymorphism (SSCP) analysis in a total of 373 hyperlipidemic individuals. Two single-base mutations were detected and confirmed by DNA sequencing. One mutation, ACA(3528)-->ACG change, resulted in degenerate codon with no amino acid substitution. The other mutation, CGG(3500)-->CAG mutation, resulted in an Arg(3500)-->Gln substitution (R3500Q). The prevalence of heterozygote in this selected population was 0.3% (95% confidence interval, 0.01-1.5%) for the R3500Q mutation, and 2.4% (95% confidence interval, 1.1-4.5%) for the previously described R3500W mutation. The results suggest that the R3500Q mutation is not a significant factor contributing to moderate hypercholesterolemia in Chinese (P=0.027). Family studies of the R3500Q carrier revealed a further two individuals heterozygous for the mutation, both of whom were hypercholesterolemic. Analysis of the R3500Q allele using six diallelic markers and the 3'HVR marker revealed a haplotype which was the same as that reported in a Chinese American but differed from that reported in a Chinese Canadian. Our data support limited multiple recurrent origins for R3500Q in Chinese population.
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Affiliation(s)
- Y N Teng
- Department of Biology, National Taiwan Normal University, 88 Ting-Chou Road, Section 4, 117, Taipei, Taiwan, ROC
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Li Y, Zhu YM, Jiang HJ, Pan JP, Wu GS, Wu JM, Shi YL, Yang JD, Wu BA. Synthesis and antimalarial activity of artemisinin derivatives containing an amino group. J Med Chem 2000; 43:1635-40. [PMID: 10780920 DOI: 10.1021/jm990552w] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In search of water-soluble artemisinin derivatives that are more stable than sodium artesunate, over 30 derivatives containing an amino group (compounds 3-5) were synthesized and tested in mice. All products tested (except 5a and 5b) are the beta isomers. These basic compounds combined with organic acids (oxalic acid, maleic acid, etc. ) to yield the corresponding salts. Generally, the maleates have better solubility in water than the corresponding oxalates. The aqueous solutions of these salts can be kept at room temperature for several weeks without any discernible decomposition. Compounds 3f, 3h, and 3r are much more active against P. berghei than artesunic acid by oral administration and therefore were further tested in monkeys. However, their oral efficacies are poorer than that of artesunic acid against P. knowlesi in rhesus monkeys. It is interesting to note that 3f, 3h, and 3r showed much lower efficacies against P. berghei when they were administered subcutaneously than orally.
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Affiliation(s)
- Y Li
- Department of Malaria, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Bejing 100071, China. ..ac.cn
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Pan JP, Chou CY, Chen WL, Ding PY. Analysis of lipids in non-diabetic patients with acute myocardial infarction. Zhonghua Yi Xue Za Zhi (Taipei) 2000; 63:270-8. [PMID: 10820905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
BACKGROUND The incidence of postinfarct cardiac events can be reduced through secondary prevention by lipid regulation. The relationship between early-detected lipids and prognosis was investigated prospectively in 97 non-diabetic patients with acute myocardial infarction (AMI). METHODS Blood samples were analyzed in five evolving stages of AMI: 1) immediately after admission (< 24 hours after the onset of symptoms); 2) on the second day after admission (< 48 hours after the onset of symptoms); 3) on the seventh day after admission; 4) two weeks after the AMI; and 5) three months after the AMI. Cardiac events, including congestive heart failure, reinfarction, unstable angina, ventricular tachyarrhythmia and sudden cardiac death were evaluated at a mean follow-up of 26 months. RESULTS Serial measurements in 75 cases with complete follow-up showed that all lipids except lipoprotein(a) had a decline in plasma level after patients were admitted to hospital. The concentrations of lipids three months postinfarct approached the admission values. Age, body mass index, vessel number, severity of vessel disease and the initial values of lipids on admission had no influence on postinfarct cardiac events in these patients. CONCLUSIONS The results indicate that the plasma levels of lipids detected within 24 hours after AMI can be used as the baseline lipid levels. Nevertheless, the impact of these lipids on the adverse outcomes in non-diabetic AMI patients should be further studied in a large-scale study.
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Affiliation(s)
- J P Pan
- Department of Medicine, Taipei Veterans General Hospital, National Yang-Ming University School of Medicine, Taiwan, ROC
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Chiou KR, Chou CY, Chan WL, Pan JP, Lin SJ, Charng MJ, Chen YH, Hsu NW, Wang SP, Ding PY, Chang MS. Results of coronary stenting after delayed angioplasty of the culprit vessel in patients with recent myocardial infarction. Catheter Cardiovasc Interv 1999; 47:423-9. [PMID: 10470471 DOI: 10.1002/(sici)1522-726x(199908)47:4<423::aid-ccd9>3.0.co;2-k] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Little information is available concerning the effect of late coronary stenting in patients with recent myocardial infarction, especially long-term results. We retrospectively reviewed our results of 57 stent placements in 52 consecutive patients who received stents at an infarct-related lesion 24 hr to 30 days after an acute myocardial infarctions (median, 14 days). The average age was 67 years; 90% were male. Two patients who suffered from acute stent thrombosis received revascularization again and two early deaths were due to refractory cardiogenic shock before discharge. Mean patient clinical follow-up was 18.3 +/- 6.5 months. There were 1 subacute stent thrombosis, 1 cardiogenic death, and 10 patients (20.8%) in total suffering from angina class II to IV. Angiographic follow-up was performed in 36 patients (80%) at a mean of 7.5 +/- 3.1 months. Of these 36 patients, only 1 (3% of the total population undergoing follow-up angiography) had reocclusion at follow-up, but restenosis existed in 18 patients (50%). We conclude that there is still relatively high incidence of angiographic recurrence that is often silent in long-term follow-up, though the long-term result of late stenting in recent MI is low incidence of reocclusion.
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Affiliation(s)
- K R Chiou
- Department of Medicine, National Yang-Ming University, School of Medicine, Taiwan
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Tai DY, Pan JP, Lee-Chen GJ. Identification and haplotype analysis of apolipoprotein B-100 Arg3500-->Trp mutation in hyperlipidemic Chinese. Clin Chem 1998; 44:1659-65. [PMID: 9702952] [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] [Indexed: 02/08/2023]
Abstract
DNA screening for apolipoprotein (apo) B-100 mutations was performed in hyperlipidemic Chinese. The apo B-100 gene segment surrounding previously identified familial defective apo B-100 (FDB) mutations was amplified by PCR and subjected to single-strand conformation polymorphism (SSCP) analysis. One subject's aberrant SSCP band was cloned and sequenced to study the molecular lesions. A recurrent ArgCGG-to-TrpTGG mutation (R3500W) in the codon 3500 of the apo B-100 gene was identified. The C-to-T transition creates a NlaIII site and permits rapid restriction analysis of the mutation. A total of 373 hyperlipidemic patients and 309 controls were screened for R3500W. Nine unrelated subjects were shown to be heterozygous for the mutation, and no R3500W carriers were found in the control group (P = 0.004). Six polymorphic markers, including five restriction fragment length polymorphisms and one hypervariable repeat region, were used for haplotype analysis on the mutant allele. In two families, the R3500W mutation could be unambiguously assigned to a unique haplotype XbaI-/MaeI+/MspI+/EcoRI+/ Eco57I+/34 3'HVR repeats; in the other seven unrelated heterozygotes, this finding was consistent when an unequivocal haplotype was deduced. The results suggest that all R3500W alleles are identical by descent in our population. The fact that the same mutant allele was identified in other Asians with FDB indicates a common Asian origin for the R3500W mutations.
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Affiliation(s)
- D Y Tai
- Department of Internal Medicine, Wei Gong Memorial Hospital, Miaoli, Taiwan, Republic of China
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Abstract
AbstractDNA screening for apolipoprotein (apo) B-100 mutations was performed in hyperlipidemic Chinese. The apo B-100 gene segment surrounding previously identified familial defective apo B-100 (FDB) mutations was amplified by PCR and subjected to single-strand conformation polymorphism (SSCP) analysis. One subject’s aberrant SSCP band was cloned and sequenced to study the molecular lesions. A recurrent ArgCGG-to-TrpTGG mutation (R3500W) in the codon 3500 of the apo B-100 gene was identified. The C-to-T transition creates a NlaIII site and permits rapid restriction analysis of the mutation. A total of 373 hyperlipidemic patients and 309 controls were screened for R3500W. Nine unrelated subjects were shown to be heterozygous for the mutation, and no R3500W carriers were found in the control group (P = 0.004). Six polymorphic markers, including five restriction fragment length polymorphisms and one hypervariable repeat region, were used for haplotype analysis on the mutant allele. In two families, the R3500W mutation could be unambiguously assigned to a unique haplotype XbaI−/MaeI+/MspI+/EcoRI+/Eco57I+/34 3′HVR repeats; in the other seven unrelated heterozygotes, this finding was consistent when an unequivocal haplotype was deduced. The results suggest that all R3500W alleles are identical by descent in our population. The fact that the same mutant allele was identified in other Asians with FDB indicates a common Asian origin for the R3500W mutations.
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Affiliation(s)
- Der-Yan Tai
- Department of Internal Medicine, Wei Gong Memorial Hospital, Tou Fen, Miaoli, Taiwan 351, Republic of China
| | - Ju-Pin Pan
- Division of Cardiology, Department of Medicine, Veterans General Hospital-Taipei, National Yang-Ming University, School of Medicine, Taipei, Taiwan 112, Republic of China
| | - Guey-Jen Lee-Chen
- Department of Biology, National Taiwan Normal University, Taipei, Taiwan 117, Republic of China
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Pan JP, Chiang AN, Chou CY, Chan WL, Tai JJ. Polymorphisms of the apolipoprotein B 3' variable number of tandem repeats region associated with coronary artery disease in Taiwanese. J Formos Med Assoc 1998; 97:233-8. [PMID: 9585673] [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] [Indexed: 02/07/2023] Open
Abstract
We studied the allelic frequency of the variable number of tandem repeats region 3' of the apolipoprotein B gene (apoB 3' VNTR) and its impact on coronary artery disease (CAD) in 150 patients with CAD and 153 normal controls in a Taiwan population. apoB 3' VNTR alleles were classified according to the number of repeats of a 15-bp hypervariable elements (HVE), the sequence of which was determined using the polymerase chain reaction and direct sequencing. Thirteen alleles comprising from 26 to 54 HVEs were identified. The CAD patients had greater heterozygosity (0.58 vs 0.42) and a higher frequency of long (> 36-HVE) apoB 3' VNTR alleles than the controls (18.7% vs 10.8%, p < 0.01). CAD patients with two HVE-36 alleles and no HVE-32 alleles (the two most common forms) had significantly higher concentrations of LDL-cholesterol, apolipoprotein B, and triglycerides, and significantly lower values of HDL-cholesterol and apolipoprotein AI than the control group (p < 0.01 for all comparisons). The length of the apoB 3' VNTR was not correlated with the plasma concentrations of any of the lipids. We conclude that long apoB 3' VNTR alleles occur more frequently in CAD patients, but that apoB 3'VNTR genotypic variation has little impact on the risk of dyslipidemia in Taiwanese.
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Affiliation(s)
- J P Pan
- Department of Medicine, Veterans General Hospital-Taipei, School of Medicine, National Yang-Ming University, Taiwan
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Pan JP, Chiang AN, Tai JJ, Wang SP, Chang MS. Restriction fragment length polymorphisms of apolipoprotein B gene in Chinese population with coronary heart disease. Clin Chem 1995. [DOI: 10.1093/clinchem/41.3.424] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Three restriction fragment length polymorphisms (RFLPs), EcoRI (R), Xbal (X), and Mspl (M) of the apolipoprotein (apo)B gene, were studied to determine their distribution frequencies and influence on the lipid profiles in 148 Chinese patients with documented coronary heart disease (CHD) and in 153 healthy subjects. The plasma concentrations of cholesterol and apoB showed no difference between the CHD patients and controls. However, CHD patients had significantly higher concentrations of low-density lipoprotein cholesterol and triglyceride and lower concentrations of high-density lipoprotein cholesterol than the controls. The frequencies of these three apoB RFLPs did not differ between the CHD patients and controls. Compared with South Asians and Caucasians, the Chinese in Taiwan showed a much lower frequency of R-, X+, and M- alleles. There was no evidence of an association between lipid profiles and RFLPs in either CHD patients or controls. The weak association of EcoRI, Xbal, and Mspl polymorphisms of the apoB gene with CHD indicates that the three RFLPs cannot be used as a predictor for the risk of CHD in the Chinese population.
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Affiliation(s)
- J P Pan
- Department of Medicine, Veterans General Hospital-Taipei, National Yang-Ming University, School of Medicine, Taiwan, Republic of China
| | - A N Chiang
- Department of Medicine, Veterans General Hospital-Taipei, National Yang-Ming University, School of Medicine, Taiwan, Republic of China
| | - J J Tai
- Department of Medicine, Veterans General Hospital-Taipei, National Yang-Ming University, School of Medicine, Taiwan, Republic of China
| | - S P Wang
- Department of Medicine, Veterans General Hospital-Taipei, National Yang-Ming University, School of Medicine, Taiwan, Republic of China
| | - M S Chang
- Department of Medicine, Veterans General Hospital-Taipei, National Yang-Ming University, School of Medicine, Taiwan, Republic of China
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Pan JP, Chou CY, Chu LS, Chu YK, Liu RS, Wang SP, Chang MS. An appraisal of dipyridamole thallium imaging-detected ischemia in Chinese following acute myocardial infarction. Zhonghua Yi Xue Za Zhi (Taipei) 1995; 55:225-34. [PMID: 7780879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
BACKGROUND The detection of objective myocardial ischemia is an important work-up of risk stratification for survivors of acute myocardial infarction (MI). Intravenous dipyridamole thallium scintigraphy was used to identify the prevalence and prognostic value of silent myocardial ischemia (SI) at the early stage in patients after MI. METHODS Ninety patients (male/female = 87/3; aged from 36 to 70 years) who succumbed to an episode of MI was recruited in this prospective study. Thallium imaging with reversible or combined defect was defined as presence of SI (Group I), while those with fixed defects or normal images were defined as absence of SI (Group II). Correlation between the patterns of thallium images for postinfarct ischemia and the angiographic lesions was investigated. Also, versatile clinical variables and indexes of adverse cardiac events: unstable angina, CHF, reinfarction, ventricular tachyarrhythmia and sudden death, were evaluated for their influence on patients' prognosis. The average follow-up was 11.6 months. RESULTS There were 61 patients in the Group I as compared with 29 patients in the Group II. The difference of Killip functional classification between Group I and Group II patients was not significant (1.33 +/- 0.72 versus 1.07 +/- 0.59). Adverse cardiac event occurred in 30% (27/90) of the patients during follow-up. Cardiac death occurred in 6 cases (7%) and were distributed evenly (3 versus 3) in both groups. Group I patients showed a higher number of nonfatal reinfarctions (8 versus 5) and had more cases of percutaneous coronary angioplasty (11 versus 8) than Group II patients. Only two cases in Group I underwent bypass graft surgery. There was no statistic difference among four patterns of thallium image in the cumulative event-free survival curve. Prior history of CHF, prior MI and higher score index of proximal arterial stenosis were the three significant prognostic predictors for late cardiac events. CONCLUSIONS Dipyridamole thallium imaging-detected SI was frequently seen in the Chinese patients following AMI. It was less valuable than prior histories of CHF, prior MI and higher index of proximal arterial stenosis scores in predicting the short-term unfavorable cardiac events in these patients. A large scale analysis and longer follow-up might be required to more accurately determine the role of this exam for the Chinese victims of myocardial infarction.
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Affiliation(s)
- J P Pan
- Department of Medicine, Veterans General Hospital-Taipei, Taiwan, R.O.C
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Pan JP, Chiang AN, Tai JJ, Wang SP, Chang MS. Restriction fragment length polymorphisms of apolipoprotein B gene in Chinese population with coronary heart disease. Clin Chem 1995; 41:424-9. [PMID: 7533671] [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] [Indexed: 01/25/2023]
Abstract
Three restriction fragment length polymorphisms (RFLPs), EcoRI (R), Xbal (X), and Mspl (M) of the apolipoprotein (apo)B gene, were studied to determine their distribution frequencies and influence on the lipid profiles in 148 Chinese patients with documented coronary heart disease (CHD) and in 153 healthy subjects. The plasma concentrations of cholesterol and apoB showed no difference between the CHD patients and controls. However, CHD patients had significantly higher concentrations of low-density lipoprotein cholesterol and triglyceride and lower concentrations of high-density lipoprotein cholesterol than the controls. The frequencies of these three apoB RFLPs did not differ between the CHD patients and controls. Compared with South Asians and Caucasians, the Chinese in Taiwan showed a much lower frequency of R-, X+, and M- alleles. There was no evidence of an association between lipid profiles and RFLPs in either CHD patients or controls. The weak association of EcoRI, Xbal, and Mspl polymorphisms of the apoB gene with CHD indicates that the three RFLPs cannot be used as a predictor for the risk of CHD in the Chinese population.
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Affiliation(s)
- J P Pan
- Department of Medicine, Veterans General Hospital-Taipei, National Yang-Ming University, School of Medicine, Taiwan, Republic of China
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Affiliation(s)
- Z X Wei
- Institute of Traditional Medicine and Materia Medica, Shandong province (250011), People's Republic of China
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Pan JP, Chen CY, Hsu TL, Wang SP, Chiang BN, Chang MS. Response of left ventricular ejection performance following balloon valvuloplasty in patients with mitral stenosis. Zhonghua Yi Xue Za Zhi (Taipei) 1992; 49:303-12. [PMID: 1320989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
In order to see if any change of left ventricular ejection performance (LEVP) would occur after successful balloon mitral valvuloplasty (BMV), a prospective study on echocardiography and calibrated carotid pulse tractings was performed two days before, two days and then six months after BMV in 24 patients with pure rheumatic mitral stenosis (MS). Echocardiographic parameters representing preload i.e. end-diastolic volume index (EDVI); afterload i.e. end-systolic wall stress (ESS), and the indices of LVEP i.e. ejection fraction (EF), fractional shortening, rate-corrected velocity of circumferential shortening (VCFc) and a ratio of ESS over end-systolic volume index (ESS/ESVI) were measured. A group of 66 normal subjects was used to establish the 95% confidence interval of the echo parameters. The incidence of depressed LVEP in MS patients was about 21% when measured by load-independent index i.e. ESS/ESVI. In the MS group, 7 out 24 (29%) patients achieved an increased cardiac index after BMV. Six (25%) MS patients showed an EF below 95% confidence interval of control (less than 55%) before BMV and, of these 6, only 3 patients increased their EDVI after the BMV. Those who showed an EF greater than or equal to 55% before BMV gave no change in their preload (EDVI) after the BMV. Only one MS patient showed high afterload (ESS) both before and after BMV. However, the ESS/ESVI showed insignificant improvement (p = 0.055) after BMV. It was therefore concluded that (1) a depressed LVEP is frequently seen in patients with MS; (2) LVEP can be improved by BMV in some (21%) patients with MS, and the improvement is not related to the change of preload or afterload but more likely secondary to an increased myocardial contractility.
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Affiliation(s)
- J P Pan
- Division of Cardiology, Veterans General Hospital-Taipei, Taiwan, Republic of China
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Pan JP, Lin SL, Go JU, Hsu TL, Chen CY, Wang SP, Chiang BN, Chang MS. Frequency and severity of mitral regurgitation one year after balloon mitral valvuloplasty. Am J Cardiol 1991; 67:264-8. [PMID: 1990790 DOI: 10.1016/0002-9149(91)90557-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Mitral regurgitation (MR) was evaluated by Doppler echocardiography in 59 patients with mitral stenosis before, immediately after and 1 year after balloon mitral valvuloplasty (BMV). The severity of MR was graded on a scale from 1+ to 4+. Echocardiographic and hemodynamic variables were analyzed to study the potential factor(s) that might predict the long-term persistence of MR. Echocardiographic variables were mitral valve thickness and motion, subvalvular change, left atrial dimension, commissural calcification and effective balloon/mitral anular diameters. Hemodynamic variables were mitral pressure gradient, pulmonary arterial pressure, ejection fraction, mitral valve area index, age, gender and cardiac rhythm. Mitral valve area index increased from 0.9 +/- 0.5 to 1.5 +/- 0.8 cm2/m2 immediately after BMW, and to 1.4 +/- 0.3 cm2/m2 at 1 year follow-up (p less than 0.01). Immediately after BMV, MR grading did not change in 30 patients (51%), increased by 1+ in 23 patients (39%), by 2+ in 2 patients (3.3%) and by 3+ in 2 patients (3.3%), and decreased by 1+ in 2 others. At 1-year follow-up, only 1 patient with severe MR required valve replacement. Fifty-one patients (88%) had no change in the extent of MR (less than or equal to 1+) and 6 patients (10%) had a 1-grade decrease in their MR; only 1 patient had a 1-grade increase in MR. No clinical or hemodynamic variables or morphologic characteristics of the mitral valve could predict the development of significant MR after BMV. It is concluded that an increment in MR severity less than or equal to 2+ is frequently seen after BMV.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- J P Pan
- Department of Internal Medicine, National Yang Ming Medical College, Taipei, Taiwan, Republic of China
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Lin SL, Chang MS, Lee GW, Hsu TL, Pan JP, Chen CY, Wang SP, Chen CC, Chiang BN. Usefulness of echocardiography in the prediction of early results of catheter balloon mitral valvuloplasty. Jpn Heart J 1990; 31:161-74. [PMID: 2355456 DOI: 10.1536/ihj.31.161] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Catheter balloon mitral valvuloplasty (BMV) was performed in 50 patients and 32 of them undergoing BMV with double balloon technique were studied to evaluate the usefulness of echocardiography in the prediction of early results of BMV. Five echocardiographic variables including mitral valve motion, mitral valve thickness, subvalvular change, commissural calcification and left atrial dimension were evaluated. Each variable was divided into mild, moderate and severe subgroups. Before valvuloplasty there were no differences in mitral valve area among any subgroup for any variable. After valvuloplasty, variables associated with a greater increase in mitral valve area from mild and moderate subgroups than from severe subgroup included mitral valve motion, mitral valve thickness, and subvalvular change, but not commissural calcification or left atrial dimension. We scored the former 3 variables as 0, 1 and 2 points in the mild, moderate and severe subgroups, respectively. The sums of individual scores in these 3 variables were further divided into 3 groups: 12 patients had a lower score (less than 2), 10 patients had a score of 3-4 and 10 patients had a higher score (greater than 5). Patients with lower scores tended to have greater increases in mitral valve areas after valvuloplasty than those with higher scores. Thus, mitral valve motion, mitral valve thickness and subvalvular change may be useful to predict a greater increase in mitral valve area after valvuloplasty. A lower score of echocardiographic variables anticipates successful balloon mitral valvuloplasty, which may be helpful in patient selection.
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Affiliation(s)
- S L Lin
- Department of Internal Medicine, Veterans General Hospital, Taipei, Taiwan, Republic of China
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Chen CY, Lin SL, Pan JP, Chang MS. Minimal requirement of effective dilation diameter of balloon(s) in percutaneous transluminal mitral valvotomy. Zhonghua Yi Xue Za Zhi (Taipei) 1989; 44:287-92. [PMID: 2634467] [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: 01/01/2023]
Abstract
40 patients are included to study the minimal requirement of effective dilation diameter of balloon(s) in performing percutaneous transluminal mitral valvotomy (PTMV) to obtain good hemodynamic and long-term follow-up consequences. The patients are divided into 2 groups depending on the ratio of effective dilation diameter of balloon(s) (determined by calculating the cross-sectional area of the oval enveloping the one or two balloons and then taking the diameter of the circle with the same area) to mitral annular diameter (determined by 2-dimensional echocardiography) (Balloon-Mitral Anular Ratio, BMAR). BMAR in group 1 may be equal to or greater than 0.80 or 0.90, BMAR in group 2 may be less than 0.80 or 0.90. From the careful analysis, the statistically significant immediate hemodynamic improvement, e.g. the reduction of trans-valvular pressure gradient, left atrial pressure, pulmonary artery systolic pressure, the increase of mitral valve area, can be obtained even BMAR is less than 0.80. However, the increase of stroke volume index after PTMV can only be obtained with the BMAR equal to or greater than 0.80. The long-term improvement, determined by greater increment of exercise duration, is also only obtained if the BMAR equal to or greater than 0.80 at PTMV. Therefore, we conclude that to obtain the adequate and satisfactory immediate hemodynamic and long-term follow-up results of PTMV, the BMAR must exceed 0.80.
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Wang SP, Liu CP, Charng MJ, Chou CY, Tsai JH, Pan JP, Shyong WC, Chan WL, Kong CW, Chang MS. The efficacy and safety of recombinant tissue plasminogen activator infusion in acute myocardial infarction. Zhonghua Yi Xue Za Zhi (Taipei) 1989; 43:223-8. [PMID: 2509051] [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: 01/01/2023]
Abstract
UNLABELLED Recombinant tissue plasminogen activator (rt-PA) is the most promising agent use for salvaging ischemic myocardium in acute infarction. To assess the safety and efficacy of rt-PA thrombolytic therapy, an open label clinical trial was conducted. Patients of acute myocardial infarction with angina, occurring within the five previous hours, was treated with rt-PA 100 mg infusion within three hours; followed with coronary arteriography to assess the patency rate of infarct vessels. Twenty-five cases of acute myocardial infarction were studied over a 10-month period. The patients, 24 male and one female, were aged 58.1 +/- 7.7 years. Rt-PA was given at 3.17 +/- 1.0 hour. Infarct-related vessels had opened in 21/24 cases when examined with coronary arteriogram three hours after infusion. Good antegrade flow of grade 2 to 3 was gained in 20/24 cases, representing an 83% success rate. One patient expired from cardiogenic shock during the infusion; another was expired from noncardiac accident after coronary bypass graft. The total inhospital mortality rate was about 8%. There was no major bleeding complication except in one case with gastrointestinal bleeding requiring transfusion. IN CONCLUSION rt-PA is safe and effective in the treatment of acute myocardial infarction in the early stage. Coronary arteriography can be safely delayed until three hours postinfusion, and the achieved reperfusion rate is up to 83%.
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Chang MS, Tsai JH, Pan JP, Lee GW, Chen CY, Lin SL, Wang SP, Chiang BN. Safety and efficacy of percutaneous mitral valvuloplasty in rheumatic mitral stenosis: early results and short-term follow-up in 32 consecutive patients. Zhonghua Yi Xue Za Zhi (Taipei) 1988; 42:7-16. [PMID: 3219657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Göbel E, Pan JP. Ultrastructure of the daughter sporocyst and developing cercaria of Schistosoma japonicum in experimentally infected snails, Oncomelania hupensis hupensis. Z Parasitenkd 1985; 71:227-40. [PMID: 3993185 DOI: 10.1007/bf00926273] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Ultrastructure of daughter sporocysts and cercariae of Schistosoma japonicum were studied 2 and 4 months after infection of Oncomelania hupensis hupensis. The body walls of daughter sporocysts are similar at all infectious stages. They consist of an external syncytial tegument on a basement membrane, and an internal cellular subtegument surrounding a body cavity containing developing cercariae. The cercariae embryos develop 2 months after infection from germinal balls in the brood chamber of the daughter sporocyst. They are at first enveloped by a primitive epithelium rising from the daughter sporocyst. Four months after infection, the cercariae were almost fully developed and the primitive epithelium had degenerated. The body wall of the cercaria consists of a thin tegument covered by a surface coat of fibrous material and connected to the subtegumental cells by cytoplasmic processes. The matrix of the tegument contains numerous dense bodies, vacuoles, and spines. Two types of sensory structures - uniciliated and multiciliated - are found at the anterior tip of the cercaria. There are five pairs of penetration gland cells of two distinct types differentiated by the morphology of secretory granules. Flame cells are found in both daughter sporocysts and in cercariae. The cilia of the flame cells are characterized by the typical 9 and 2 cilium pattern.
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