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Chang H, Kuo CF, Yu TS, Ke LY, Hung CL, Tsai SY. Increased risk of chronic fatigue syndrome following infection: a 17-year population-based cohort study. J Transl Med 2023; 21:804. [PMID: 37951920 PMCID: PMC10638797 DOI: 10.1186/s12967-023-04636-z] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 10/16/2023] [Indexed: 11/14/2023] Open
Abstract
BACKGROUND Previous serological studies have indicated an association between viruses and atypical pathogens and Chronic Fatigue Syndrome (CFS). This study aims to investigate the correlation between infections from common pathogens, including typical bacteria, and the subsequent risk of developing CFS. The analysis is based on data from Taiwan's National Health Insurance Research Database. METHODS From 2000 to 2017, we included a total of 395,811 cases aged 20 years or older newly diagnosed with infection. The cases were matched 1:1 with controls using a propensity score and were followed up until diagnoses of CFS were made. RESULTS The Cox proportional hazards regression analysis was used to estimate the relationship between infection and the subsequent risk of CFS. The incidence density rates among non-infection and infection population were 3.67 and 5.40 per 1000 person-years, respectively (adjusted hazard ratio [HR] = 1.5, with a 95% confidence interval [CI] 1.47-1.54). Patients infected with Varicella-zoster virus, Mycobacterium tuberculosis, Escherichia coli, Candida, Salmonella, Staphylococcus aureus and influenza virus had a significantly higher risk of CFS than those without these pathogens (p < 0.05). Patients taking doxycycline, azithromycin, moxifloxacin, levofloxacin, or ciprofloxacin had a significantly lower risk of CFS than patients in the corresponding control group (p < 0.05). CONCLUSION Our population-based retrospective cohort study found that infection with common pathogens, including bacteria, viruses, is associated with an increased risk of developing CFS.
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Affiliation(s)
- Hsun Chang
- Division of Infectious Diseases, Department of Internal Medicine, MacKay Memorial Hospital, Taipei, Taiwan
| | - Chien-Feng Kuo
- Division of Infectious Diseases, Department of Internal Medicine, MacKay Memorial Hospital, Taipei, Taiwan
- Department of Medicine, MacKay Medical College, New Taipei City, 252, Taiwan
- Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Johns Hopkins University, 615 N. Wolfe Street, Baltimore, MD, 21205, USA
| | - Teng-Shun Yu
- Management Office for Health Data, China Medical University Hospital, Taichung, Taiwan
- Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Liang-Yin Ke
- Medical Laboratory Science & Biotechnology, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chung-Lieh Hung
- Division of Cardiology, Departments of Internal Medicine, MacKay Memorial Hospital, Taipei, Taiwan
- Institute of Biomedical Sciences, MacKay Medical College, New Taipei City, Taiwan
| | - Shin-Yi Tsai
- Department of Medicine, MacKay Medical College, New Taipei City, 252, Taiwan.
- Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Johns Hopkins University, 615 N. Wolfe Street, Baltimore, MD, 21205, USA.
- Institute of Biomedical Sciences, MacKay Medical College, New Taipei City, Taiwan.
- Department of Laboratory Medicine, MacKay Memorial Hospital, Taipei, 104, Taiwan.
- Institute of Long-Term Care, MacKay Medical College, New Taipei City, Taiwan.
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Liao YH, Tang KP, Chou CY, Kuo CF, Tsai SY. Assessment of factors influencing physicians' intention to prescribe transfusion using the theory of planned behavior. BMC Health Serv Res 2023; 23:973. [PMID: 37684594 PMCID: PMC10492397 DOI: 10.1186/s12913-023-09946-y] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 08/22/2023] [Indexed: 09/10/2023] Open
Abstract
BACKGROUND Blood shortage is a persistent problem affecting Taiwan's health-care system. The theory of planned behavior (TPB) has been commonly used in studies of health advocacy. The purpose of this study was to develop a questionnaire measuring clinicians' intention to prescribe transfusion based on the TPB. METHOD A questionnaire comprising 15 items for assessing clinicians' intention to prescribe blood transfusion was developed, and it collected demographic characteristics, tested patient blood management (PBM) and perceived knowledge of PBM. Furthermore, the questionnaire contained four subscales related to the TPB. A total of 129 clinicians participated in this pilot study between July and December2020. Item analysis and exploratory factor analysis were conducted to examine the validity and reliability of this measurement instrument. RESULTS The results indicated no statistically significant correlations between the demographic characteristics and PBM test scores. Regarding perceived knowledge, the results of a one-way analysis of variance revealed that the effect of age, hierarchy of doctors, and education level were significant. In terms of subjective norms, a significant effect on education level was noted [t (129) = 2.28, p < 0.05], with graduate school graduates receiving higher scores than college graduates. An analysis of variance demonstrated the effects of hierarchy, education level, and medical specialty on perceived behavioral control. The results of the regression analyses revealed that perceived knowledge (β = 0.32, p < 0.01) and subjective norms (β = 0.22, p < 0.05) were significantly related to clinicians' behavioral intentions. CONCLUSIONS This study revealed that factors affecting clinicians' blood transfusion management can be explained using the TPB-based questionnaire. This study demonstrated that physicians' perceptions of whether most people approve of PBM and their self-assessment of their PBM knowledge affect their intentions to proceed with PBM. According to this finding, a support system among physicians must be established and maintained to increase physicians' confidence in promoting PBM.
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Affiliation(s)
- Yu-Han Liao
- Department of Medicine, Mackay Medical College, New Taipei City, 252, Taiwan
| | - Kung-Pei Tang
- Department of Early Childhood & Family Education, National Taipei University of Education, Taipei City, Taiwan
| | - Chih-Yu Chou
- Department of Medicine, Mackay Medical College, New Taipei City, 252, Taiwan
| | - Chien-Feng Kuo
- Department of Medicine, Mackay Medical College, New Taipei City, 252, Taiwan
- Department of Internal Medicine, Division of Infectious Diseases, Mackay Memorial Hospital, Taipei, Taiwan
- Department of Nursing, MacKay Junior College of Medicine, Nursing and Management, New Taipei City, 25245, Taiwan
| | - Shin-Yi Tsai
- Department of Medicine, Mackay Medical College, New Taipei City, 252, Taiwan.
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei City 104, Taiwan.
- Institute of Biomedical Sciences, Mackay Medical College, New Taipei City, Taiwan.
- Institute of Long-Term Care, Mackay Medical College, New Taipei City, Taiwan.
- Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, 21205, USA.
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3
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Chen C, Yip HT, Leong KH, Yao WC, Hung CL, Su CH, Kuo CF, Tsai SY. Presence of depression and anxiety with distinct patterns of pharmacological treatments before the diagnosis of chronic fatigue syndrome: a population-based study in Taiwan. J Transl Med 2023; 21:98. [PMID: 36755267 PMCID: PMC9907887 DOI: 10.1186/s12967-023-03886-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 01/11/2023] [Indexed: 02/10/2023] Open
Abstract
OBJECTIVE An increased prevalence of psychiatric comorbidities (including depression and anxiety disorder) has been observed among patients with chronic fatigue syndrome (CFS). However, few studies have examined the presence of depression and anxiety disorder before the diagnosis of CFS. This study aimed to clarify the preexisting comorbidities and treatments associated with patients with subsequent CFS diagnosis in a population-based cohort in Taiwan. METHODS An analysis utilizing the National Health Insurance Research Database of Taiwan was conducted. Participants included were 6303 patients with CFS newly diagnosed between 2000 and 2010 and 6303 age-/sex-matched controls. RESULTS Compared with the control group, the CFS group had a higher prevalence of depression and anxiety disorder before the diagnosis of CFS. Sampled patients who took specific types of antidepressants, namely, selective serotonin reuptake inhibitors (adjusted odds ratio [aOR] = 1.21, 95% confidence interval [CI] 1.04-1.39), serotonin antagonists and reuptake inhibitors (SARI; aOR = 1.87, 95% CI 1.59-2.19), and tricyclic antidepressants (aOR = 1.46, 95% CI 1.09-1.95), had an increased risk of CFS. CFS risk was also higher among participants taking benzodiazepine, muscle relaxants, and analgesic drugs. A sub-group analysis revealed that SARI use was related to an increased risk of CFS in the depression, anxiety disorder, male, and female groups. In the depression and anxiety disorder groups, analgesic drug use was associated with an increased CFS risk. Nonpharmacological treatment administration differed between men and women. CONCLUSION This population-based retrospective cohort study revealed an increased risk of CFS among populations with preexisting depression and anxiety disorder, especially those taking SARI and analgesic drugs.
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Affiliation(s)
- Chi Chen
- grid.412094.a0000 0004 0572 7815Department of Psychiatry, National Taiwan University Hospital, Taipei, Taiwan
| | - Hei-Tung Yip
- grid.411508.90000 0004 0572 9415Management Office for Health Data, China Medical University Hospital, Taichung, 404 Taiwan
| | - Kam-Hang Leong
- grid.452449.a0000 0004 1762 5613Department of Medicine, MacKay Medical College, New Taipei City, 252 Taiwan ,grid.413593.90000 0004 0573 007XDepartment of Laboratory Medicine, MacKay Memorial Hospital, Taipei, 104 Taiwan
| | - Wei-Cheng Yao
- grid.415675.40000 0004 0572 8359Department of Anesthesiology and Pain Medicine, Min-Sheng General Hospital, Taoyuan, Taiwan
| | - Chung-Lieh Hung
- grid.452449.a0000 0004 1762 5613Institute of Biomedical Sciences, MacKay Medical College, New Taipei City, Taiwan
| | - Ching-Huang Su
- grid.413593.90000 0004 0573 007XDepartment of Laboratory Medicine, MacKay Memorial Hospital, Taipei, 104 Taiwan
| | - Chien-Feng Kuo
- grid.452449.a0000 0004 1762 5613Department of Medicine, MacKay Medical College, New Taipei City, 252 Taiwan ,Department of Nursing, Nursing and Management, MacKay Junior College of Medicine, New Taipei City, 25245 Taiwan ,grid.413593.90000 0004 0573 007XDivision of Infectious Diseases, Department of Internal Medicine, MacKay Memorial Hospital, Taipei, Taiwan
| | - Shin-Yi Tsai
- Department of Medicine, MacKay Medical College, New Taipei City, 252, Taiwan. .,Department of Laboratory Medicine, MacKay Memorial Hospital, Taipei, 104, Taiwan. .,Institute of Biomedical Sciences, MacKay Medical College, New Taipei City, Taiwan. .,Institute of Long-Term Care, MacKay Medical College, New Taipei City, Taiwan. .,Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Johns Hopkins University, 615 N. Wolfe Street, Baltimore, MD, 21205, USA.
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Yao WC, Leong KH, Chiu LT, Chou PY, Wu LC, Chou CY, Kuo CF, Tsai SY. The trends in the incidence and thrombosis-related comorbidities of antiphospholipid syndrome: a 14-year nationwide population-based study. Thromb J 2022; 20:50. [PMID: 36050731 PMCID: PMC9434885 DOI: 10.1186/s12959-022-00409-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 08/18/2022] [Indexed: 12/02/2022] Open
Abstract
Background This study aims to provide 14-year nationwide epidemiology data to evaluate the incidence ratio of APS in Taiwan and the condition of comorbidities by analyzing the National Health Insurance Research Database. Methods Nineteen thousand one hundred sixty-three patients newly diagnosed as having APS during the 2000–2013 period and 76,652 controls (with similar distributions of age and sex) were analyzed. Results The incidence of APS increased from 4.87 to 6.49 per 10,000 person-years in the Taiwan population during 2000–2013. The incidence of APS increased with age after 20 years old, especially in the female population, and it rose rapidly after age over 60 years old. In addition, APS cohorts presented a higher proportion of diabetes mellitus, hypertension, hyperlipidemia, stroke, heart failure, atrial fibrillation, myocardial infarction, PAOD, chronic kidney disease, COPD, deep vein thrombosis, pulmonary embolism, SLE, rheumatoid arthritis, Sjogren’s syndrome, and polymyositis. Conclusions Our study indicated an increasing trend in APS incidence among the Taiwanese population and a relationship between APS and potential comorbidities. This large national study found that the APS risk is heavily influenced by sex and age. Thus, the distinctive sex and age patterns might be constructive given exploring potential causal mechanisms. Furthermore, our findings indicate that clinicians should have a heightened awareness of the probability of APS, especially in women in certain age groups presenting with symptoms of APS.
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Affiliation(s)
- Wei-Cheng Yao
- Department of Anesthesiology and Pain Medicine, Min-Sheng General Hospital, Tao-Yuan City, Taiwan
| | - Kam-Hang Leong
- Department of Laboratory Medicine, MacKay Memorial Hospital, No. 92, Sec. 2, Zhongshan N. Rd, Taipei City, 10449, Taiwan.,Department of Medicine, MacKay Medical College, New Taipei City, Taiwan
| | - Lu-Ting Chiu
- Management Office for Health Data, China Medical University Hospital, Taichung City, Taiwan
| | - Po-Yi Chou
- Department of Laboratory Medicine, MacKay Memorial Hospital, No. 92, Sec. 2, Zhongshan N. Rd, Taipei City, 10449, Taiwan
| | - Li-Chih Wu
- Department of Laboratory Medicine, MacKay Memorial Hospital, No. 92, Sec. 2, Zhongshan N. Rd, Taipei City, 10449, Taiwan
| | - Chih-Yu Chou
- Department of Medicine, MacKay Medical College, New Taipei City, Taiwan
| | - Chien-Feng Kuo
- Department of Medicine, MacKay Medical College, New Taipei City, Taiwan.,Division of Infectious Diseases, Department of Internal Medicine, MacKay Memorial Hospital, Taipei, Taiwan.,Department of Nursing, MacKay Junior College of Medicine, Nursing and Management, New Taipei City, Taiwan
| | - Shin-Yi Tsai
- Department of Laboratory Medicine, MacKay Memorial Hospital, No. 92, Sec. 2, Zhongshan N. Rd, Taipei City, 10449, Taiwan. .,Department of Medicine, MacKay Medical College, New Taipei City, Taiwan. .,Institute of Biomedical Sciences, MacKay Medical College, New Taipei City, Taiwan. .,Institute of Long-Term Care, MacKay Medical College, New Taipei City, Taiwan. .,Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA.
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5
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Leong KH, Yip HT, Kuo CF, Tsai SY. Treatments of chronic fatigue syndrome and its debilitating comorbidities: a 12-year population-based study. J Transl Med 2022; 20:268. [PMID: 35690765 PMCID: PMC9187893 DOI: 10.1186/s12967-022-03461-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 05/25/2022] [Indexed: 12/03/2022] Open
Abstract
Background This study aims to provide 12-year nationwide epidemiology data to investigate the epidemiology and comorbidities of and therapeutic options for chronic fatigue syndrome (CFS) by analyzing the National Health Insurance Research Database. Methods 6306 patients identified as having CFS during the 2000–2012 period and 6306 controls (with similar distributions of age and sex) were analyzed. Result The patients with CFS were predominantly female and aged 35–64 years in Taiwan and presented a higher proportion of depression, anxiety disorder, insomnia, Crohn’s disease, ulcerative colitis, renal disease, type 2 diabetes, gout, dyslipidemia, rheumatoid arthritis, Sjogren syndrome, and herpes zoster. The use of selective serotonin receptor inhibitors (SSRIs), serotonin norepinephrine reuptake inhibitors (SNRIs), Serotonin antagonist and reuptake inhibitors (SARIs), Tricyclic antidepressants (TCAs), benzodiazepine (BZD), Norepinephrine-dopamine reuptake inhibitors (NDRIs), muscle relaxants, analgesic drugs, psychotherapies, and exercise therapies was prescribed significantly more frequently in the CFS cohort than in the control group. Conclusion This large national study shared the mainstream therapies of CFS in Taiwan, we noticed these treatments reported effective to relieve symptoms in previous studies. Furthermore, our findings indicate that clinicians should have a heightened awareness of the comorbidities of CFS, especially in psychiatric problems.
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Affiliation(s)
- Kam-Hang Leong
- Department of Medicine, Mackay Medical College, New Taipei City, 252, Taiwan.,Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, 21205, USA
| | - Hei-Tung Yip
- Management Office for Health Data, China Medical University Hospital, Taichung City, 404, Taiwan
| | - Chien-Feng Kuo
- Department of Medicine, Mackay Medical College, New Taipei City, 252, Taiwan.,Institute of Infectious Disease, Mackay Memorial Hospital, Taipei City, 104, Taiwan.,Department of Nursing, Nursing and Management, MacKay Junior College of Medicine, New Taipei City, 25245, Taiwan
| | - Shin-Yi Tsai
- Department of Medicine, Mackay Medical College, New Taipei City, 252, Taiwan. .,Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, 21205, USA. .,Institute of Biomedical Sciences, Mackay Medical College, New Taipei City, 252, Taiwan. .,Institute of Long-Term Care, Mackay Medical College, New Taipei City, 252, Taiwan. .,Department of Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei, 104, Taiwan.
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Hsu NW, Chou KC, Wang YTT, Hung CL, Kuo CF, Tsai SY. Building a model for predicting metabolic syndrome using artificial intelligence based on an investigation of whole-genome sequencing. J Transl Med 2022; 20:190. [PMID: 35484552 PMCID: PMC9052619 DOI: 10.1186/s12967-022-03379-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 04/04/2022] [Indexed: 12/02/2022] Open
Abstract
Background The circadian system is responsible for regulating various physiological activities and behaviors and has been gaining recognition. The circadian rhythm is adjusted in a 24-h cycle and has transcriptional–translational feedback loops. When the circadian rhythm is interrupted, affecting the expression of circadian genes, the phenotypes of diseases could amplify. For example, the importance of maintaining the internal temporal homeostasis conferred by the circadian system is revealed as mutations in genes coding for core components of the clock result in diseases. This study will investigate the association between circadian genes and metabolic syndromes in a Taiwanese population. Methods We performed analysis using whole-genome sequencing, read vcf files and set target circadian genes to determine if there were variants on target genes. In this study, we have investigated genetic contribution of circadian-related diseases using population-based next generation whole genome sequencing. We also used significant SNPs to create a metabolic syndrome prediction model. Logistic regression, random forest, adaboost, and neural network were used to predict metabolic syndrome. In addition, we used random forest model variables importance matrix to select 40 more significant SNPs, which were subsequently incorporated to create new prediction models and to compare with previous models. The data was then utilized for training set and testing set using five-fold cross validation. Each model was evaluated with the following criteria: area under the receiver operating characteristics curve (AUC), precision, F1 score, and average precision (the area under the precision recall curve). Results After searching significant variants, we used Chi-Square tests to find some variants. We found 186 significant SNPs, and four predicting models which used 186 SNPs (logistic regression, random forest, adaboost and neural network), AUC were 0.68, 0.8, 0.82, 0.81 respectively. The F1 scores were 0.412, 0.078, 0.295, 0.552, respectively. The other three models which used the 40 SNPs (logistic regression, adaboost and neural network), AUC were 0.82, 0.81, 0.81 respectively. The F1 scores were 0.584, 0.395, 0.574, respectively. Conclusions Circadian gene defect may also contribute to metabolic syndrome. Our study found several related genes and building a simple model to predict metabolic syndrome. Supplementary Information The online version contains supplementary material available at 10.1186/s12967-022-03379-7.
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Affiliation(s)
- Nai-Wei Hsu
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan
| | - Kai-Chen Chou
- Department of Laboratory Medicine, MacKay Memorial Hospital, Taipei City, Taiwan
| | - Yu-Ting Tina Wang
- Department of Laboratory Medicine, MacKay Memorial Hospital, Taipei City, Taiwan
| | - Chung-Lieh Hung
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan.,Institute of Biomedical Sciences, Mackay Medical College, New Taipei City, Taiwan
| | - Chien-Feng Kuo
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan.,Department of Nursing, MacKay Junior College of Medicine, Nursing and Management, New Taipei City, Taiwan.,Division of Infectious Diseases, Department of Internal Medicine, Mackay Memorial Hospital, Taipei, Taiwan
| | - Shin-Yi Tsai
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan. .,Department of Laboratory Medicine, MacKay Memorial Hospital, Taipei City, Taiwan. .,Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, 21205, USA. .,Institute of Biomedical Sciences, Mackay Medical College, New Taipei City, Taiwan. .,Institute of Long-Term Care, Mackay Medical College, New Taipei City, Taiwan.
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Sung KT, Chandramouli C, Lo CI, Tsai JP, Lai YH, Hsiao CC, Tsai SY, Yun CH, Hung TC, Kuo JY, Lin JL, Hou CJY, Chen YJ, Su CH, Hung CL, Bulwer BE, Yeh HI, Lam CSP. Association of Female Menopause With Atrioventricular Mechanics and Outcomes. Front Cardiovasc Med 2022; 9:804336. [PMID: 35528841 PMCID: PMC9068967 DOI: 10.3389/fcvm.2022.804336] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 03/11/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundDespite known sex differences in cardiac structure and function, little is known about how menopause and estrogen associate with atrioventricular mechanics and outcomes.ObjectiveTo study how, sex differences, loss of estrogen in menopause and duration of menopause, relate to atrioventricular mechanics and outcomes.MethodsAmong 4051 asymptomatic adults (49.8 ± 10.8 years, 35%women), left ventricular (LV) and left atrial (LA) mechanics were assessed using speckle-tracking.ResultsPost-menopausal (vs. pre-menopausal) women had similar LV ejection fraction but reduced GLS, reduced PALS, increased LA stiffness, higher LV sphericity and LV torsion (all p < 0.001). Multivariable analysis showed menopause to be associated with greater LV sphericity (0.02, 95%CI 0.01, 0.03), higher indexed LV mass (LVMi), lower mitral e’, lower LV GLS (0.37, 95%CI 0.04–0.70), higher LV torsion, larger LA volume, worse PALS (∼2.4-fold) and greater LA stiffness (0.028, 95%CI 0.01–0.05). Increasing years of menopause was associated with further reduction in GLS, markedly worse LA mechanics despite greater LV sphericity and higher torsion. Lower estradiol levels correlated with more impaired LV diastolic function, impaired LV GLS, greater LA stiffness, and increased LV sphericity and LV torsion (all p < 0.05). Approximately 5.5% (37/669) of post-menopausal women incident HF over 2.9 years of follow-up. Greater LV sphericity [adjusted hazard ratio (aHR) 1.04, 95%CI 1.00–1.07], impaired GLS (aHR 0.87, 95%CI 0.78–0.97), reduced peak left atrial longitudinal strain (PALS, aHR 0.94, 95%CI 0.90–0.99) and higher LA stiffness (aHR 10.5, 95%CI 1.69–64.6) were independently associated with the primary outcome of HF hospitalizations in post-menopause. Both PALS < 23% (aHR:1.32, 95%CI 1.01–3.49) and GLS < 16% (aHR:5.80, 95%CI 1.79–18.8) remained prognostic for the incidence of HF in post-menopausal women in dichotomous analyses, even after adjusting for confounders. Results were consistent with composite outcomes of HF hospitalizations and 1-year all-cause mortality as well.ConclusionMenopause was associated with greater LV/LA remodeling and reduced LV longitudinal and LA function in women. The cardiac functional deficit with menopause and lower estradiol levels, along with their independent prognostic value post-menopause, may elucidate sex differences in heart failure further.
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Affiliation(s)
- Kuo-Tzu Sung
- Division of Cardiology, Department of Internal Medicine, MacKay Memorial Hospital, Taipei, Taiwan
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan
- Institute of Clinical Medicine, National Yang Ming University, Taipei, Taiwan
| | - Chanchal Chandramouli
- National Heart Research Institute, National Heart Centre Singapore, Singapore, Singapore
- Academic Clinical Programme, Duke-National University of Singapore, Singapore, Singapore
- *Correspondence: Chanchal Chandramouli,
| | - Chi-In Lo
- Division of Cardiology, Department of Internal Medicine, MacKay Memorial Hospital, Taipei, Taiwan
| | - Jui-Peng Tsai
- Division of Cardiology, Department of Internal Medicine, MacKay Memorial Hospital, Taipei, Taiwan
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan
| | - Yau-Huei Lai
- Division of Cardiology, Department of Internal Medicine, MacKay Memorial Hospital, Taipei, Taiwan
| | - Chih-Chung Hsiao
- Division of Cardiology, Department of Internal Medicine, MacKay Memorial Hospital, Taipei, Taiwan
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan
| | - Shin-Yi Tsai
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan
- Department of Biomedical Imaging and Radiological Science, National Yang Ming University, Taipei, Taiwan
- School of Public Health, Johns Hopkins University Bloomberg, Baltimore, MD, United States
| | - Chun-Ho Yun
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan
| | - Ta-Chuan Hung
- Division of Cardiology, Department of Internal Medicine, MacKay Memorial Hospital, Taipei, Taiwan
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan
| | - Jen-Yuan Kuo
- Division of Cardiology, Department of Internal Medicine, MacKay Memorial Hospital, Taipei, Taiwan
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan
| | - Jiun-Lu Lin
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan
| | - Charles Jia-Yin Hou
- Division of Cardiology, Department of Internal Medicine, MacKay Memorial Hospital, Taipei, Taiwan
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan
| | - Ying-Ju Chen
- Department of Telehealth, MacKay Memorial Hospital, Taipei, Taiwan
| | - Cheng-Huang Su
- Division of Cardiology, Department of Internal Medicine, MacKay Memorial Hospital, Taipei, Taiwan
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan
| | - Chung-Lieh Hung
- Division of Cardiology, Department of Internal Medicine, MacKay Memorial Hospital, Taipei, Taiwan
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan
- Institute of Clinical Medicine, National Yang Ming University, Taipei, Taiwan
- Institute of Biomedical Sciences, Mackay Medical College, New Taipei City, Taiwan
- Chung-Lieh Hung,
| | - Bernard E. Bulwer
- Brigham and Women’s Hospital, Boston, MA, United States
- Massachusetts College of Pharmacy and Health Sciences, Boston, MA, United States
| | - Hung-I Yeh
- Academic Clinical Programme, Duke-National University of Singapore, Singapore, Singapore
- Department of Medicine, University Medical Centre Groningen, Groningen, Netherlands
| | - Carolyn S. P. Lam
- National Heart Research Institute, National Heart Centre Singapore, Singapore, Singapore
- Academic Clinical Programme, Duke-National University of Singapore, Singapore, Singapore
- Department of Medicine, University Medical Centre Groningen, Groningen, Netherlands
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8
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Yang TY, Lin CL, Yao WC, Lio CF, Chiang WP, Lin K, Kuo CF, Tsai SY. How mycobacterium tuberculosis infection could lead to the increasing risks of chronic fatigue syndrome and the potential immunological effects: a population-based retrospective cohort study. J Transl Med 2022; 20:99. [PMID: 35189895 PMCID: PMC8862378 DOI: 10.1186/s12967-022-03301-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 02/08/2022] [Indexed: 12/30/2022] Open
Abstract
Background Chronic fatigue syndrome (CFS) has been shown to be associated with infections. Tuberculosis (TB) is a highly prevalent infectious disease. Patients with chronic fatigue syndrome and post-tuberculosis experience similar symptoms. Furthermore, chronic fatigue syndrome and tuberculosis share similar plasma immunosignatures. This study aimed to clarify the risk of chronic fatigue syndrome following the diagnosis of Mycobacterium tuberculosis infection (MTI), by analyzing the National Health Insurance Research Database of Taiwan. Methods 7666 patients aged 20 years or older with newly diagnosed Mycobacterium tuberculosis infection during 2000–2011 and 30,663 participants without Mycobacterium tuberculosis infection were identified. Both groups were followed up until the diagnoses of chronic fatigue syndrome were made at the end of 2011. Results The relationship between Mycobacterium tuberculosis infection and the subsequent risk of chronic fatigue syndrome was estimated through Cox proportional hazards regression analysis, with the incidence density rates being 3.04 and 3.69 per 1000 person‐years among the non‐Mycobacterium tuberculosis infection and Mycobacterium tuberculosis infection populations, respectively (adjusted hazard ratio [HR] = 1.23, with 95% confidence interval [CI] 1.03–1.47). In the stratified analysis, the Mycobacterium tuberculosis infection group were consistently associated with a higher risk of chronic fatigue syndrome in the male sex (HR = 1.27, 95% CI 1.02–1.58) and age group of ≥ 65 years old (HR = 2.50, 95% CI 1.86–3.38). Conclusions The data from this population‐based retrospective cohort study revealed that Mycobacterium tuberculosis infection is associated with an elevated risk of subsequent chronic fatigue syndrome.
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Affiliation(s)
- Tse-Yen Yang
- Molecular and Genomic Epidemiology Center, China Medical University Hospital, Taichung City, 404, Taiwan.,College of Medicine, China Medical University, Taichung City, 404, Taiwan
| | - Cheng-Li Lin
- College of Medicine, China Medical University, Taichung City, 404, Taiwan.,Management Office for Health Data, China Medical University Hospital, Taichung City, 404, Taiwan
| | - Wei-Cheng Yao
- Department of Anesthesiology and Pain Medicine, Min-Sheng General Hospital, Tao-Yuan City, 330, Taiwan
| | - Chon-Fu Lio
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei City, 104, Taiwan
| | - Wen-Po Chiang
- Department of Medicine, Mackay Medical College, New Taipei City, 252, Taiwan
| | - Kuan Lin
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei City, 104, Taiwan
| | - Chien-Feng Kuo
- Department of Medicine, Mackay Medical College, New Taipei City, 252, Taiwan.,Institute of Infectious Disease, Mackay Memorial Hospital, Taipei City, 104, Taiwan
| | - Shin-Yi Tsai
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei City, 104, Taiwan. .,Department of Medicine, Mackay Medical College, New Taipei City, 252, Taiwan. .,Graduate Institute of Long-Term Care, Mackay Medical College, New Taipei City, 252, Taiwan. .,Graduate Institute of Biomedical Sciences, Mackay Medical College, New Taipei City, 252, Taiwan. .,Department of Health Policy and Management, Johns Hopkins University Bloomberg School of Public Health, Baltimore, 21205, USA.
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Hung CL, Sung KT, Chang SC, Liu YY, Kuo JY, Huang WH, Su CH, Liu CC, Tsai SY, Liu CY, Lee AS, Pan SH, Wang SW, Hou CJY, Hung TC, Yeh HI. Variant Aldehyde Dehydrogenase 2 ( ALDH2*2) as a Risk Factor for Mechanical LA Substrate Formation and Atrial Fibrillation with Modest Alcohol Consumption in Ethnic Asians. Biomolecules 2021; 11:biom11111559. [PMID: 34827557 PMCID: PMC8615757 DOI: 10.3390/biom11111559] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 10/14/2021] [Accepted: 10/16/2021] [Indexed: 12/30/2022] Open
Abstract
Aldehyde dehydrogenase 2 (ALDH2) rs671 polymorphism is a common genetic variant in Asians that is responsible for defective toxic aldehyde and lipid peroxidation metabolism after alcohol consumption. The extent to which low alcohol consumption may cause atrial substrates to trigger atrial fibrillation (AF) development in users with ALDH2 variants remains to be determined. We prospectively enrolled 249 ethnic Asians, including 56 non-drinkers and 193 habitual drinkers (135 (70%) as ALDH2 wild-type: GG, rs671; 58 (30%) as ALDH2 variants: G/A or A/A, rs671). Novel left atrial (LA) mechanical substrates with dynamic characteristics were assessed using a speckle-tracking algorithm and correlated to daily alcohol consumption and ALDH2 genotypes. Despite modest and comparable alcohol consumption by the habitual alcohol users (14.3 [8.3~28.6] and 12.3 [6.3~30.7] g/day for those without and with ALDH2 polymorphism, p = 0.31), there was a substantial and graded increase in the 4-HNE adduct and prolonged PR, and a reduction in novel LA mechanical parameters (including peak atrial longitudinal strain (PALS) and phasic strain rates (reservoir, conduit, and booster pump functions), p < 0.05), rather than an LA emptying fraction (LAEF) or LA volume index across non-drinkers, and in habitual drinkers without and with ALDH2 polymorphism (all p < 0.05). The presence of ALDH2 polymorphism worsened the association between increasing daily alcohol dose and LAEF, PALS, and phasic reservoir and booster functions (all Pinteraction: <0.05). Binge drinking superimposed on regular alcohol use exclusively further worsened LA booster pump function compared to regular drinking without binge use (1.66 ± 0.57 vs. 1.97 ± 0.56 1/s, p = 0.001). Impaired LA booster function further independently helped to predict AF after consideration of the CHARGE-AF score (adjusted 1.68 (95% CI: 1.06–2.67), p = 0.028, per 1 z-score increment). Habitual modest alcohol consumption led to mechanical LA substrate formation in an ethnic Asian population, which was more pronounced in subjects harboring ALDH2 variants. Impaired LA booster functions may serve as a useful predictor of AF in such populations.
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Affiliation(s)
- Chung-Lieh Hung
- Department of Medicine, Mackay Medical College, New Taipei City 25245, Taiwan; (C.-L.H.); (K.-T.S.); (S.-C.C.); (Y.-Y.L.); (J.-Y.K.); (C.-H.S.); (S.-Y.T.); (C.-Y.L.); (A.-S.L.); (S.-W.W.); (C.J.-Y.H.); (T.-C.H.)
- Division of Cardiology, Departments of Internal Medicine, MacKay Memorial Hospital, Taipei 10449, Taiwan;
- Institute of Biomedical Sciences, Mackay Medical College, New Taipei City 25245, Taiwan
| | - Kuo-Tzu Sung
- Department of Medicine, Mackay Medical College, New Taipei City 25245, Taiwan; (C.-L.H.); (K.-T.S.); (S.-C.C.); (Y.-Y.L.); (J.-Y.K.); (C.-H.S.); (S.-Y.T.); (C.-Y.L.); (A.-S.L.); (S.-W.W.); (C.J.-Y.H.); (T.-C.H.)
- Division of Cardiology, Departments of Internal Medicine, MacKay Memorial Hospital, Taipei 10449, Taiwan;
| | - Shun-Chuan Chang
- Department of Medicine, Mackay Medical College, New Taipei City 25245, Taiwan; (C.-L.H.); (K.-T.S.); (S.-C.C.); (Y.-Y.L.); (J.-Y.K.); (C.-H.S.); (S.-Y.T.); (C.-Y.L.); (A.-S.L.); (S.-W.W.); (C.J.-Y.H.); (T.-C.H.)
| | - Yen-Yu Liu
- Department of Medicine, Mackay Medical College, New Taipei City 25245, Taiwan; (C.-L.H.); (K.-T.S.); (S.-C.C.); (Y.-Y.L.); (J.-Y.K.); (C.-H.S.); (S.-Y.T.); (C.-Y.L.); (A.-S.L.); (S.-W.W.); (C.J.-Y.H.); (T.-C.H.)
- Division of Cardiology, Departments of Internal Medicine, MacKay Memorial Hospital, Taipei 10449, Taiwan;
- Institute of Biomedical Sciences, Mackay Medical College, New Taipei City 25245, Taiwan
- Department of Critical Care Medicine, MacKay Memorial Hospital, Taipei 10449, Taiwan
| | - Jen-Yuan Kuo
- Department of Medicine, Mackay Medical College, New Taipei City 25245, Taiwan; (C.-L.H.); (K.-T.S.); (S.-C.C.); (Y.-Y.L.); (J.-Y.K.); (C.-H.S.); (S.-Y.T.); (C.-Y.L.); (A.-S.L.); (S.-W.W.); (C.J.-Y.H.); (T.-C.H.)
- Division of Cardiology, Departments of Internal Medicine, MacKay Memorial Hospital, Taipei 10449, Taiwan;
| | - Wen-Hung Huang
- Division of Cardiology, Departments of Internal Medicine, MacKay Memorial Hospital, Taipei 10449, Taiwan;
| | - Cheng-Huang Su
- Department of Medicine, Mackay Medical College, New Taipei City 25245, Taiwan; (C.-L.H.); (K.-T.S.); (S.-C.C.); (Y.-Y.L.); (J.-Y.K.); (C.-H.S.); (S.-Y.T.); (C.-Y.L.); (A.-S.L.); (S.-W.W.); (C.J.-Y.H.); (T.-C.H.)
- Division of Cardiology, Departments of Internal Medicine, MacKay Memorial Hospital, Taipei 10449, Taiwan;
| | - Chuan-Chuan Liu
- Department of Physiology Examination, MacKay Memorial Hospital, New Taipei City 25160, Taiwan;
| | - Shin-Yi Tsai
- Department of Medicine, Mackay Medical College, New Taipei City 25245, Taiwan; (C.-L.H.); (K.-T.S.); (S.-C.C.); (Y.-Y.L.); (J.-Y.K.); (C.-H.S.); (S.-Y.T.); (C.-Y.L.); (A.-S.L.); (S.-W.W.); (C.J.-Y.H.); (T.-C.H.)
- Institute of Biomedical Sciences, Mackay Medical College, New Taipei City 25245, Taiwan
- Department of Health Policy and Management, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD 21205, USA
| | - Chia-Yuan Liu
- Department of Medicine, Mackay Medical College, New Taipei City 25245, Taiwan; (C.-L.H.); (K.-T.S.); (S.-C.C.); (Y.-Y.L.); (J.-Y.K.); (C.-H.S.); (S.-Y.T.); (C.-Y.L.); (A.-S.L.); (S.-W.W.); (C.J.-Y.H.); (T.-C.H.)
- Division of Gastroenterology, Department of Internal Medicine, MacKay Memorial Hospital, Taipei 10449, Taiwan
| | - An-Sheng Lee
- Department of Medicine, Mackay Medical College, New Taipei City 25245, Taiwan; (C.-L.H.); (K.-T.S.); (S.-C.C.); (Y.-Y.L.); (J.-Y.K.); (C.-H.S.); (S.-Y.T.); (C.-Y.L.); (A.-S.L.); (S.-W.W.); (C.J.-Y.H.); (T.-C.H.)
| | - Szu-Hua Pan
- Graduate Institute of Medical Genomics and Proteomics, College of Medicine, National Taiwan University, Taipei 10051, Taiwan;
- Genome and Systems Biology Degree Program, Academia Sinica and National Taiwan University, Taipei 10617, Taiwan
- Doctoral Degree Program of Translational Medicine, College of Medicine, National Taiwan University, Taipei 10051, Taiwan
| | - Shih-Wei Wang
- Department of Medicine, Mackay Medical College, New Taipei City 25245, Taiwan; (C.-L.H.); (K.-T.S.); (S.-C.C.); (Y.-Y.L.); (J.-Y.K.); (C.-H.S.); (S.-Y.T.); (C.-Y.L.); (A.-S.L.); (S.-W.W.); (C.J.-Y.H.); (T.-C.H.)
- Institute of Biomedical Sciences, Mackay Medical College, New Taipei City 25245, Taiwan
| | - Charles Jia-Yin Hou
- Department of Medicine, Mackay Medical College, New Taipei City 25245, Taiwan; (C.-L.H.); (K.-T.S.); (S.-C.C.); (Y.-Y.L.); (J.-Y.K.); (C.-H.S.); (S.-Y.T.); (C.-Y.L.); (A.-S.L.); (S.-W.W.); (C.J.-Y.H.); (T.-C.H.)
- Division of Cardiology, Departments of Internal Medicine, MacKay Memorial Hospital, Taipei 10449, Taiwan;
| | - Ta-Chuan Hung
- Department of Medicine, Mackay Medical College, New Taipei City 25245, Taiwan; (C.-L.H.); (K.-T.S.); (S.-C.C.); (Y.-Y.L.); (J.-Y.K.); (C.-H.S.); (S.-Y.T.); (C.-Y.L.); (A.-S.L.); (S.-W.W.); (C.J.-Y.H.); (T.-C.H.)
- Division of Cardiology, Departments of Internal Medicine, MacKay Memorial Hospital, Taipei 10449, Taiwan;
- Mackay Junior College of Medicine, Nursing and Management, Taipei 11260, Taiwan
| | - Hung-I Yeh
- Department of Medicine, Mackay Medical College, New Taipei City 25245, Taiwan; (C.-L.H.); (K.-T.S.); (S.-C.C.); (Y.-Y.L.); (J.-Y.K.); (C.-H.S.); (S.-Y.T.); (C.-Y.L.); (A.-S.L.); (S.-W.W.); (C.J.-Y.H.); (T.-C.H.)
- Division of Cardiology, Departments of Internal Medicine, MacKay Memorial Hospital, Taipei 10449, Taiwan;
- Correspondence: ; Tel./Fax: +886-2-25433535 (ext. 2459)
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Shi L, Lin CL, Su CH, Lin KC, Leong KH, Wang YTT, Kuo CF, Tsai SY. The Risk of Developing Osteoporosis in Hemolytic Anemia-What Aggravates the Bone Loss? J Clin Med 2021; 10:jcm10153364. [PMID: 34362147 PMCID: PMC8348015 DOI: 10.3390/jcm10153364] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 07/26/2021] [Accepted: 07/27/2021] [Indexed: 01/05/2023] Open
Abstract
Hemolytic anemia (HA) renders erythropoietic stress on the bone marrow and has been linked to osteoporosis. In this nationwide retrospective cohort study, we examined this correlation by utilizing the Taiwan National Health Insurance Research Database (NHIRD). We identified two cohorts, matching population with and without HA in a 1:4 ratio. A total of 2242 HA patients and 8968 non-HA patients were enrolled. Patients with HA had a significantly higher cumulative incidence (log-rank test p = 0.0073), higher incidence density (5.11 vs. 3.76 per 1000 persons-years), and a 1.31-fold risk of developing osteoporosis than non-HA patients (aHR = 1.31, 95% C.I. 1.04-1.63, p = 0.01). After adjusting for age, sex, and comorbidities, patients with factors including female (aHR = 2.57, 95% C.I. 2.05-3.22, p < 0.001), age > 65 (aHR = 9.25, 95% C.I. 7.46-11.50, p < 0.001), diagnosis of cholelithiasis (aHR = 1.76, 95% C.I. 1.20-2.58, p = 0.003) and peptic ulcer disease (aHR = 1.87, 95% C.I. 1.52-2.29, p < 0.001) had significantly higher risk of osteoporosis. We propose that this correlation may be related to increased hematopoietic stress, increased consumption of nitric oxide (NO) by hemolysis, and the inhibitory effects of iron supplements on osteogenesis through the receptor activator of nuclear factor κB ligand (RANKL)/Osteoprotegerin pathway and the Runt-related transcription factor 2 (RUNX2) factor. Our findings suggest that patients with hemolytic anemia are at a higher risk of developing osteoporosis, and it would be in the patient's best interest for physicians to be aware of this potential complication and offer preventative measures.
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Affiliation(s)
- Leiyu Shi
- Department of Health Policy and Management, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD 21205, USA;
| | - Cheng-Li Lin
- College of Medicine, China Medical University, Taichung City 404, Taiwan;
| | - Ching-Huang Su
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei City 104, Taiwan; (C.-H.S.); (K.-C.L.); (K.-H.L.); (Y.-T.T.W.)
| | - Keng-Chian Lin
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei City 104, Taiwan; (C.-H.S.); (K.-C.L.); (K.-H.L.); (Y.-T.T.W.)
| | - Kam-Hang Leong
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei City 104, Taiwan; (C.-H.S.); (K.-C.L.); (K.-H.L.); (Y.-T.T.W.)
| | - Yu-Ting Tina Wang
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei City 104, Taiwan; (C.-H.S.); (K.-C.L.); (K.-H.L.); (Y.-T.T.W.)
| | - Chien-Feng Kuo
- Division of Infectious Diseases, Department of Internal Medicine, Mackay Memorial Hospital, Taipei City 104, Taiwan;
- Department of Medicine, Mackay Medical College, New Taipei City 25245, Taiwan
- Department of Cosmetic Applications and Management, MacKay Junior College of Medicine, Nursing and Management, New Taipei City 25245, Taiwan
| | - Shin-Yi Tsai
- Department of Health Policy and Management, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD 21205, USA;
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei City 104, Taiwan; (C.-H.S.); (K.-C.L.); (K.-H.L.); (Y.-T.T.W.)
- Department of Medicine, Mackay Medical College, New Taipei City 25245, Taiwan
- Graduate Institute of Long-Term Care, Mackay Medical College, New Taipei City 25245, Taiwan
- Graduate Institute of Biomedical Sciences, Mackay Medical College, New Taipei City 25245, Taiwan
- Correspondence: ; Tel.: +886-975-835-797 or +886-915-309-666
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11
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Kuo CF, Shi L, Lin CL, Yao WC, Chen HT, Lio CF, Wang YTT, Su CH, Hsu NW, Tsai SY. How peptic ulcer disease could potentially lead to the lifelong, debilitating effects of chronic fatigue syndrome: an insight. Sci Rep 2021; 11:7520. [PMID: 33824394 PMCID: PMC8024330 DOI: 10.1038/s41598-021-87018-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 03/22/2021] [Indexed: 02/08/2023] Open
Abstract
Chronic Fatigue Syndrome (CFS) has been defined as unexplained relapsing or persistent fatigue for at least 6 consecutive months. Immuno-inflammatory pathway, bacterial infection, and other causes play essential roles in CFS. Helicobacter pylori infection is one of the most common causes of foregut inflammation, leading to peptic ulcer disease (PUD). This study aimed to analyze the risk of CFS development between patients with and without PUD. Other related factors were also analyzed. We performed a retrospective, nationwide cohort study identifying patients with or without PUD respectively by analyzing the Longitudinal Health Insurance Database 2000 (LHID2000), Taiwan. The overall incidence of CFS was higher in the PUD cohort than in the non- PUD cohort (HR = 2.01, 95% CI = 1.75-2.30), with the same adjusted HR (aHR) when adjusting for age, sex, and comorbidities. The sex-specific PUD cohort to the non-PUD cohort relative risk of CFS was significant in both genders. The age-specific incidence of CFS showed incidence density increasing with age in both cohorts. There is an increased risk of developing CFS following PUD, especially in females and the aging population. Hopefully, these findings can prevent common infections from progressing to debilitating, chronic conditions such as CFS.
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Affiliation(s)
- Chien-Feng Kuo
- Department of Medicine, Graduate Institute of Long-Term Care, Graduate Institute of Biomedical Sciences, Mackay Medical College, New Taipei City, Taiwan.,Department of Cosmetic Applications and Management, MacKay Junior College of Medicine, Nursing and Management, New Taipei City, Taiwan.,Division of Infectious Diseases, Department of Internal Medicine, Mackay Memorial Hospital, Taipei, Taiwan
| | - Leiyu Shi
- Department of Health Policy and Management, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Cheng-Li Lin
- College of Medicine, China Medical University, Taichung City, Taiwan.,Management Office for Health Data, China Medical University Hospital, Taichung City, Taiwan
| | - Wei-Cheng Yao
- Department of Anesthesiology and Pain Medicine, Min-Sheng General Hospital, Tao-Yuan, 330, Taiwan
| | - Hsiang-Ting Chen
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei, Taiwan
| | - Chon-Fu Lio
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei, Taiwan
| | - Yu-Ting Tina Wang
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei, Taiwan
| | - Ching-Huang Su
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei, Taiwan
| | - Nai-Wei Hsu
- Department of Medicine, Graduate Institute of Long-Term Care, Graduate Institute of Biomedical Sciences, Mackay Medical College, New Taipei City, Taiwan.,Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei, Taiwan
| | - Shin-Yi Tsai
- Department of Medicine, Graduate Institute of Long-Term Care, Graduate Institute of Biomedical Sciences, Mackay Medical College, New Taipei City, Taiwan. .,Department of Cosmetic Applications and Management, MacKay Junior College of Medicine, Nursing and Management, New Taipei City, Taiwan. .,Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei, Taiwan.
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Ma KSK, Chiang CH, Lopez AAV, Wang LT, Tsai SY. Identifying Mechanisms Underlying the Association Between Cardiovascular Diseases and Periodontitis Using in Silico Analysis of Canonical Pathways. Am Heart J 2020. [DOI: 10.1016/j.ahj.2020.10.038] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Ma KSK, Wang LT, Tsai SY. Correspondence to: 'Combination of human umbilical cord mesenchymal (stromal) stem cell transplantation with IFN-γ treatment synergistically improves the clinical outcomes of patients with rheumatoid arthritis'. Ann Rheum Dis 2020; 81:e206. [PMID: 33028582 DOI: 10.1136/annrheumdis-2020-218704] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Accepted: 07/31/2020] [Indexed: 01/20/2023]
Affiliation(s)
- Kevin Sheng-Kai Ma
- Department of Health Policy and Management, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Li-Tzu Wang
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan, Taiwan
| | - Shin-Yi Tsai
- Department of Health Policy and Management, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
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Tsai SY, Lio CF, Shih SC, Lin CJ, Chen YT, Yu CM, Sun FJ, Kuo CF, Jia X. The predisposing factors of AKI for prophylactic strategies in burn care. PeerJ 2020; 8:e9984. [PMID: 33072437 PMCID: PMC7537615 DOI: 10.7717/peerj.9984] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 08/27/2020] [Indexed: 01/22/2023] Open
Abstract
Background Acute kidney injury (AKI) is one of the most severe complications of burn injury. AKI with severe burn injury causes high mortality. This study aims to investigate the incidence of and predisposing factors for AKI in burn patients. Methods This is a single-center, retrospective, descriptive criterion standard study conducted from June 27, 2015, to March 8, 2016. We used Kidney Disease Improving Global Outcomes criteria to define and select patients with AKI. The study was conducted by recruiting in hospital patients who suffered from the flammable cornstarch-based powder explosion and were treated under primary care procedures. A total of 49 patients who suffered from flammable dust explosion-related burn injury were enrolled and admitted on June 27, 2015. The patients with more than 20% total body surface area of burn were transferred to the intensive care unit. Patients received fluid resuscitation in the first 24 hours based on the Parkland formula. The primary measurements were the incidence of and predisposing factors for AKI in these patients. Demographic characteristics, laboratory data, and inpatient outcomes were also evaluated. The incidence of AKI in this cohort was 61.2% (n = 30). The mortality rate was 2.0% (n = 1) during a 59-day follow-up period. The multivariate analysis revealed inhalation injury (adjusted OR = 22.0; 95% CI [1.4–358.2]) and meeting ≥3 American Burn Association (ABA) sepsis criteria (adjusted OR = 13.7; 95% CI [1.7–110.5]) as independent risk factors for early advanced AKI. Conclusions The incidence rate of AKI was higher in this cohort than in previous studies, possibly due to the flammable dust explosion-related burn injury. However, the mortality was lower than that expected. In clinical practice, indicators of inflammation, including ABA sepsis criteria may help in predicting the risk of AKI in patients with burn injury.
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Affiliation(s)
- Shin-Yi Tsai
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei, Taiwan.,Department of Medicine, Mackay Medical College, New Taipei City, Taiwan.,Graduate Institute of Biomedical Sciences; Graduate Institute of Long- Term Care, Mackay Medical College, New Taipei City, Taiwan.,Department of Health Policy and Management, Bloomberg School of Public Health, The Johns Hopkins University, Baltimore, MD, United States of America
| | - Chon-Fu Lio
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei, Taiwan
| | - Shou-Chuan Shih
- Department of Internal Medicine, Mackay Memorial Hospital, Taipei, Taiwan.,Department of Medical Research, Mackay Memorial Hospital, Taipei, Taiwan
| | - Cheng-Jui Lin
- Department of Nephrology, Mackay Memorial Hospital, Taipei, Taiwan
| | - Yu-Tien Chen
- Department of Surgery, Mackay Memorial Hospital, Taipei, Taiwan
| | - Chia-Meng Yu
- Department of Plastic Surgery, Mackay Memorial Hospital, Taipei, Taiwan
| | - Fang-Ju Sun
- Department of Medical Research, Mackay Memorial Hospital, Taipei, Taiwan
| | - Chien-Feng Kuo
- Institute of Infectious Disease, Mackay Memorial Hospital, Taipei, Taiwan
| | - Xiaofeng Jia
- Biomedical Engineering, Anesthesiology & Critical Care Medicine, The Johns Hopkins University, Baltimore, MD, United States of America.,Department of Neurosurgery, Orthopaedics, Anatomy & Neurobiology, University of Maryland at Baltimore, Baltimore, MD, United States of America
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Ma KSK, Tsai SY. Big Data-driven personal protective equipment stockpiling framework under Universal Healthcare for Disease Control and Prevention in the COVID-19 Era. Int J Surg 2020; 79:290-291. [PMID: 32504812 PMCID: PMC7270797 DOI: 10.1016/j.ijsu.2020.05.091] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 05/31/2020] [Indexed: 11/22/2022]
Affiliation(s)
- Kevin Sheng-Kai Ma
- Department of Health Policy and Management, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA.
| | - Shin-Yi Tsai
- Department of Health Policy and Management, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA.
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Kuo CF, Lio CF, Chen HT, Wang YTT, Ma KSK, Chou YT, Chang FC, Tsai SY. Discordance of vancomycin minimum inhibitory concentration for methicillin-resistant Staphylococcus aureus at 2 μg/mL between Vitek II, E-test, and Broth Microdilution. PeerJ 2020; 8:e8963. [PMID: 32435531 PMCID: PMC7224226 DOI: 10.7717/peerj.8963] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Accepted: 03/23/2020] [Indexed: 12/28/2022] Open
Abstract
Background Vancomycin, the first line antibiotic for methicillin-resistant Staphylococcus aureus (MRSA) bacteremia, is often administered inappropriately when MIC is greater than 2 µg/mL, including ‘susceptible’ strains. This study assessed the discordance of vancomycin minimum inhibitory concentration (MIC) for methicillin-resistant Staphylococcus aureus (MRSA). Methods In total, 229 MRSA isolates from blood cultures collected between 2009 and 2015 at a tertiary hospital in Taiwan were examined. The MICs of vancomycin were measured using Vitek 2, E-test, and standard broth microdilution at the level of 2 µg/mL. Results The geometric mean of the MICs of hospital-acquired MRSA was higher than that of community-acquired MRSA (P < 0.001), with the exact agreement rates (with broth microdilution) at 2 µg/mL being 53.6% in Vitek 2 and 86.7% in E-test. Overall, E-test (98.1%) had more categorical accordance than did Vitek 2 (94.0%; P = 0.026). Vitek 2 had a tendency to overestimate MRSA in high-MIC isolates, whereas E-test inclined underestimation in low-MIC isolates. Surprisingly, the discordance rates of MRSA vancomycin MICs were higher in hospital-acquired isolates (13.3%–17.0%) than in community-acquired isolates (6.2%–7.0%). Conclusion The Infectious Diseases Society of America recommends the use of alternative antimicrobial agents when vancomycin MIC is ≥ 2 µg/mL; in this study, only 53.6% of the isolates tested using Vitek 2 showed a high MIC in the broth microdilution method. Accurate identification of the resistance profile is a key component of antimicrobial stewardship programs. Therefore, to reduce inappropriate antibiotic use and mitigate the emergence of resistant strains, we recommend using complementary tests such as E-test or Broth microdilution to verify the MIC before administering second-line antibiotics. Strengths (1) We compared the categorical agreement between different methods measuring MRSA MICs level. (2) Physicians should incorporate this information and consider a complementary test to verify the appropriateness of the decision of shifting vancomycin to second-line antibiotic treatment to improve patients’ prognosis. (3) MRSA-vancomycin MICs at a cutoff of 2 µg/mL obtained using Vitek II exhibited a higher sensitivity level and negative predictive value than those obtained using E-test in the prediction of categorical agreement with standard broth microdilution. Limitation (1) Our research was based on a single hospital-based study. (2) The MRSA strains in this study were stored for more than 12 months after isolation. (3) We did not collect information on clinical prognosis.
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Affiliation(s)
- Chien-Feng Kuo
- Division of Infectious Disease, Mackay Memorial Hospital, Taipei, Taiwan
| | - Chon Fu Lio
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei, Taiwan
| | - Hsiang-Ting Chen
- Division of Infectious Disease, Mackay Memorial Hospital, Taipei, Taiwan.,Department of Medicine, Mackay Medical College, Taipei, Taiwan
| | - Yu-Ting Tina Wang
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei, Taiwan
| | - Kevin Sheng-Kai Ma
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei, Taiwan.,Department of Pathology, School of Dental Medicine, University of Pennsylvania, Philadelphia, USA
| | - Yi Ting Chou
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei, Taiwan
| | - Fu-Chieh Chang
- Infection control center, Mackay Memorial Hospital, Taipei, Taiwan
| | - Shin-Yi Tsai
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei, Taiwan.,Department of Medicine, Mackay Medical College, Taipei, Taiwan.,Department of Health Policy and Management, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, U.S.,Graduate Institute of Long-Term Care, Graduate Institute of Biomedical Sciences, Mackay Medical College, New Taipei City, Taiwan
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Tsai SY, Lio CF, Yao WC, Liu CP, Shih SC, Wang TYT, Leong KH, Sun FJ, Kuo CF. Cost-drivers of medical expenses in burn care management. Burns 2020; 46:817-824. [PMID: 32291114 DOI: 10.1016/j.burns.2020.01.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 01/07/2020] [Accepted: 01/16/2020] [Indexed: 11/19/2022]
Abstract
BACKGROUND Profound differences exist in the cost of burn care globally, thus we aim to investigate the affected factors and to delineate a strategy to improve the cost-effectiveness of burn management. METHODS A retrospective analysis of 66 patients suffering from acute burns was conducted from 2013 to 2015. The average age was 26.7 years old and TBSA was 42.1% (±25.9%). We compared the relationship between cost and clinical characteristics. RESULTS The estimated cost of acute burn care with the following formula (10,000 TWD) = -19.80 + (2.67 × percentage of TBSA) + (124.29 × status of inhalation injury) + (147.63 × status of bacteremia) + (130.32 × status of respiratory tract infection). CONCLUSION The majority of the cost were associated with the use of antibiotics and burns care. Consequently, it is crucial to prevent nosocomial infection in order to promote healthcare quality and reduce in-hospital costs.
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Affiliation(s)
- Shin-Yi Tsai
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei City, Taiwan; Department of Medicine, Mackay Medical College, New Taipei City, Taiwan; Graduate Institute of Long-Term Care, Mackay Medical College, New Taipei City, Taiwan; Graduate Institute of Biomedical Sciences, Mackay Medical College, New Taipei City, Taiwan; Department of Health Policy and Management, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, United States.
| | - Chon-Fu Lio
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei City, Taiwan
| | - Wei-Cheng Yao
- Department of Anesthesiology and Pain Medicine, Min-Sheng General Hospital, Tao-Yuan, Taiwan
| | - Chang-Pan Liu
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan; Division of Infectious Diseases, Department of Internal Medicine, Mackay Memorial Hospital, Taipei, Taiwan; Department of Medical Research, Mackay Memorial Hospital, Taipei, Taiwan
| | - Shou-Chuan Shih
- Department of Medical Research, Mackay Memorial Hospital, Taipei, Taiwan; Department of Internal Medicine, Mackay Memorial Hospital, Taipei, Taiwan
| | - Tina Yu-Ting Wang
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei City, Taiwan
| | - Kam-Hang Leong
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei City, Taiwan
| | - Fang-Ju Sun
- Department of Medical Research, Mackay Memorial Hospital, Taipei, Taiwan; Mackay Junior College of Medicine, Nursing and Management, Taipei City, Taiwan
| | - Chien-Feng Kuo
- Division of Infectious Diseases, Department of Internal Medicine, Mackay Memorial Hospital, Taipei, Taiwan.
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18
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Tzeng TT, Chen PL, Weng TC, Tsai SY, Lai CC, Chou HI, Chen PW, Lu CC, Liu MT, Sung WC, Lee MS, Hu AYC. Development of high-growth influenza H7N9 prepandemic candidate vaccine viruses in suspension MDCK cells. J Biomed Sci 2020; 27:47. [PMID: 32241276 PMCID: PMC7115086 DOI: 10.1186/s12929-020-00645-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 03/27/2020] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND Influenza vaccine manufacturers traditionally use egg-derived candidate vaccine viruses (CVVs) to produce high-yield influenza viruses for seasonal or pandemic vaccines; however, these egg-derived CVVs need an adaptation process for the virus to grow in mammalian cells. The low yields of cell-based manufacturing systems using egg-derived CVVs remain an unsolved issue. This study aimed to develop high-growth cell-derived CVVs for MDCK cell-based vaccine manufacturing platforms. METHODS Four H7N9 CVVs were generated in characterized Vero and adherent MDCK (aMDCK) cells. Furthermore, reassortant viruses were amplified in adherent MDCK (aMDCK) cells with certification, and their growth characteristics were detected in aMDCK cells and new suspension MDCK (sMDCK) cells. Finally, the plaque-forming ability, biosafety, and immunogenicity of H7N9 reassortant viruses were evaluated. RESULTS The HA titers of these CVVs produced in proprietary suspension MDCK (sMDCK) cells and chicken embryos were 2- to 8-fold higher than those in aMDCK cells. All H7N9 CVVs showed attenuated characteristics by trypsin-dependent plaque assay and chicken embryo lethality test. The alum-adjuvanted NHRI-RG5 (derived from the fifth wave H7N9 virus A/Guangdong/SP440/2017) vaccine had the highest immunogenicity and cross-reactivity among the four H7N9 CVVs. Finally, we found that AddaVax adjuvant improved the cross-reactivity of low pathogenic H7N9 virus against highly pathogenic H7N9 viruses. CONCLUSIONS Our study indicates that cell-derived H7N9 CVVs possessed high growth rate in new sMDCK cells and low pathogenicity in chicken embryo, and that CVVs generated by this platform are also suitable for both cell- and egg-based prepandemic vaccine production.
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Affiliation(s)
- Tsai-Teng Tzeng
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), 35 Keyan Road, Zhunan, Miaoli County, 35053, Taiwan
| | - Po-Ling Chen
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), 35 Keyan Road, Zhunan, Miaoli County, 35053, Taiwan.,Institute of Molecular and Cellular Biology, National Tsing Hua University, Hsinchu, Taiwan
| | - Tsai-Chuan Weng
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), 35 Keyan Road, Zhunan, Miaoli County, 35053, Taiwan
| | - Shin-Yi Tsai
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), 35 Keyan Road, Zhunan, Miaoli County, 35053, Taiwan
| | - Chia-Chun Lai
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), 35 Keyan Road, Zhunan, Miaoli County, 35053, Taiwan.,College of Life Science, National Tsing Hua University, Hsinchu, Taiwan
| | - Hsin-I Chou
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), 35 Keyan Road, Zhunan, Miaoli County, 35053, Taiwan
| | - Pin-Wen Chen
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), 35 Keyan Road, Zhunan, Miaoli County, 35053, Taiwan
| | - Chia-Chun Lu
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), 35 Keyan Road, Zhunan, Miaoli County, 35053, Taiwan
| | - Ming-Tsan Liu
- Centers for Disease Control, Ministry of Health and Welfare, Taipei, 689, Taiwan
| | - Wang-Chou Sung
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), 35 Keyan Road, Zhunan, Miaoli County, 35053, Taiwan
| | - Min-Shi Lee
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), 35 Keyan Road, Zhunan, Miaoli County, 35053, Taiwan
| | - Alan Yung-Chih Hu
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), 35 Keyan Road, Zhunan, Miaoli County, 35053, Taiwan.
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Tzeng TT, Lai CC, Weng TC, Cyue MH, Tsai SY, Tseng YF, Sung WC, Lee MS, Hu AYC. The stability and immunogenicity of inactivated MDCK cell-derived influenza H7N9 viruses. Vaccine 2019; 37:7117-7122. [PMID: 31383484 DOI: 10.1016/j.vaccine.2019.03.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 03/04/2019] [Accepted: 03/13/2019] [Indexed: 10/26/2022]
Abstract
In recent years, cell-based influenza vaccines have gained a great interest over the egg-based vaccines. Several inactivated H7N9 vaccines have been evaluated in clinical trials, including whole-virion vaccines, split vaccines and subunit vaccines. Recently, we developed a new suspension MDCK (sMDCK) cell line for influenza viruses production. However, the properties of purified antigen from sMDCK cells remain unclear. In this study, the stability of influenza H7N9 vaccine bulk derived from sMDCK cells was investigated, and the data were compared with the vaccine antigen derived from our characterized adhesion MDCK (aMDCK) cells in serum-free medium. The influenza H7N9 bulks derived from sMDCK and aMDCK cells were stored at 2-8 °C for different periods of time, and a number of parameters selected to monitor the H7N9 vaccine antigen stability were evaluated at each interval (1, 3 and 12 months). The monitored parameters included virus morphology, hemagglutinin (HA) activity, HA concentration, antigenicity, and immunogenicity. The sMDCK-derived H7N9 bulk showed similar morphology to that of the aMDCK-derived H7N9 bulk, and there were no obvious changes after the extended storage periods. Furthermore, the HA titer, HA concentration, and antigenicity of sMDCK-derived H7N9 bulk were stable after 28 months of storage. Finally, the results of hemagglutination inhibition and neutralization tests showed that sMDCK- and aMDCK-derived H7N9 vaccines had comparable immunogenicity. These results indicated that sMDCK-derived H7N9 bulk has good stability compared to that of aMDCK-derived H7N9 bulk. Thus, the newly developed suspension MDCK cell line shows a great alternative for manufacturing cell-based influenza vaccines.
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Affiliation(s)
- Tsai-Teng Tzeng
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), Taiwan
| | - Chia-Chun Lai
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), Taiwan; College of Life Science, National Tsing Hua University, Taiwan
| | - Tsai-Chuan Weng
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), Taiwan
| | - Ming-Hong Cyue
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), Taiwan
| | - Shin-Yi Tsai
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), Taiwan
| | - Yu-Fen Tseng
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), Taiwan
| | - Wang-Chou Sung
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), Taiwan
| | - Min-Shi Lee
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), Taiwan
| | - Alan Yung-Chih Hu
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), Taiwan.
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20
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Tsai SY, Chen HJ, Chen C, Lio CF, Kuo CF, Leong KH, Wang YTT, Yang TY, You CH, Wang WS. Increased risk of chronic fatigue syndrome following psoriasis: a nationwide population-based cohort study. J Transl Med 2019; 17:154. [PMID: 31088562 PMCID: PMC6518753 DOI: 10.1186/s12967-019-1888-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 04/19/2019] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND The onset of chronic fatigue syndrome (CFS) has been shown to be associated with several immunological conditions such as infections or atopy. The aim of this study was to clarify the risk of chronic fatigue syndrome following the diagnosis of psoriasis, an immune-related dermatological disease, by analyzing the National Health Insurance Research Database of Taiwan. METHOD 2616 patients aged 20 years or older with newly diagnosed psoriasis during 2004-2008 and 10,464 participants without psoriasis were identified. Both groups were followed up until the diagnoses of CFS were made at the end of 2011. RESULTS The relationship between psoriasis and the subsequent risk of CFS was estimated through Cox proportional hazards regression analysis, with the incidence density rates being 2.27 and 3.58 per 1000 person-years among the non-psoriasis and psoriasis populations, respectively (adjusted hazard ratio [HR] = 1.48, with 95% confidence interval [CI] 1.07-2.06). In the stratified analysis, the psoriasis group were consistently associated with a higher risk of CFS in male sex (HR = 2.05, 95% CI 1.31-3.20) and age group of ≥ 60 years old (HR = 2.32, 95% CI 1.33-4.06). In addition, we discovered that the significantly increased risk of CFS among psoriasis patients is attenuated after they receive phototherapy and/or immunomodulatory drugs. CONCLUSIONS The data from this population-based retrospective cohort study revealed that psoriasis is associated with an elevated risk of subsequent CFS, which is differentiated by sex and age.
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Affiliation(s)
- Shin-Yi Tsai
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei, Taiwan. .,Department of Medicine, Mackay Medical College, New Taipei City, Taiwan. .,Graduate Institute of Biomedical Sciences, Graduate Institute of Long-Term Care, Mackay Medical College, New Taipei City, Taiwan. .,Department of Health Policy and Management, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA.
| | - Hsuan-Ju Chen
- College of Medicine, China Medical University, Taichung, Taiwan.,Management Office for Health Data, China Medical University Hospital, Taichung, Taiwan
| | - Chi Chen
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei, Taiwan.,Department of Psychiatry, University of Oxford, Oxford, UK
| | - Chon-Fu Lio
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei, Taiwan
| | - Chien-Feng Kuo
- Institute of Infectious Disease, Mackay Memorial Hospital, Taipei, Taiwan
| | - Kam-Hang Leong
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei, Taiwan
| | - Yu-Ting Tina Wang
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei, Taiwan
| | - Tse-Yen Yang
- Molecular and Genomic Epidemiology Center, China Medical University Hospital, Taichung, Taiwan.,Division of Nephrology, Department of Internal Medicine, Changhua Christian Hospital, Changhua, Taiwan
| | - Ching-Hui You
- National Taiwan University, College of Medicine, Taipei, Taiwan.,Department of Epidemiology, Harvard TH Chan School of Public Health, Boston, USA
| | - Wei-Sheng Wang
- Institute of Infectious Disease, Mackay Memorial Hospital, Taipei, Taiwan.
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Tsai SY, Chen HJ, Lio CF, Kuo CF, Kao AC, Wang WS, Yao WC, Chen C, Yang TY. Increased risk of chronic fatigue syndrome in patients with inflammatory bowel disease: a population-based retrospective cohort study. J Transl Med 2019; 17:55. [PMID: 30795765 PMCID: PMC6387539 DOI: 10.1186/s12967-019-1797-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 02/14/2019] [Indexed: 12/13/2022] Open
Abstract
Background Similarities in the symptoms of chronic fatigue syndrome (CFS) and inflammatory bowel disease (IBD) have been observed as follows: severe disease activity in IBD correlates with severe fatigue, major psychiatric signs, the common use of medication, and bacterial translocation. One of several hypotheses for explaining the mechanisms underlying CFS suggests a similarity to the impaired intestinal mucosa of IBD. “This study investigated the risk of incident CFS among patients with IBD”. Methods We conducted a population-based retrospective cohort study by using Taiwan’s National Health Insurance Research Database to evaluate the subsequent risk of CFS in patients with IBD, according to demographic characteristics and comorbidities. The exposure cohort comprised 2163 patients with new diagnoses of IBD. Each patient was randomly selected and frequency matching according to gender and age with four participants from the general population who had no history of CFS at the index date (control cohort). Cox proportional hazards regression analysis was conducted to estimate the relationship between IBD and the subsequent risk of CFS. Results The exposure cohort had a significantly higher overall risk of subsequent CFS than that of the control group [adjusted hazard ratio (Christophi in Inflamm Bowel Dis 18(12):2342–2356, 2012) = 2.25, 95%, confidence interval (Aaron and Buchwald in Ann Intern Med 134(9 Pt 2):868–881, 2001; Farraye et al. in Am J Gastroenterol 112:241, 2017) 1.70–2.99]. Further analysis indicated a significantly higher risk of CFS in patients who were male (HR = 3.23, 95% CI 2.12–4.91), were older than 35 years, and had IBD but without comorbidity status, e.g. Cancers, diabetes, obesity, depression, anxiety, sleep disorder, renal disease (HR = 2.50, 95% CI 1.63–3.84) after adjustment. Conclusion The findings from this population-based retrospective cohort study suggest that IBD, especially Crohn’s disease, is associated with an increased risk of subsequent CFS. Electronic supplementary material The online version of this article (10.1186/s12967-019-1797-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Shin-Yi Tsai
- Department of Laboratory Medicine, MacKay Memorial Hospital, Taipei, Taiwan. .,Department of Medicine, Mackay Medical College, New Taipei City, Taiwan. .,Graduate Institute of Long-Term Care, Mackay Medical College, New Taipei City, Taiwan. .,Graduate Institute of Biomedical Sciences, Mackay Medical College, New Taipei City, Taiwan. .,Department of Health Policy and Management, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA.
| | - Hsuan-Ju Chen
- Management Office for Health Data, China Medical University Hospital, Taichung, Taiwan.,College of Medicine, China Medical University, Taichung, Taiwan
| | - Chon-Fu Lio
- Department of Laboratory Medicine, MacKay Memorial Hospital, Taipei, Taiwan
| | - Chien-Feng Kuo
- Institute of Infectious Disease, MacKay Memorial Hospital, Taipei, Taiwan
| | - An-Chun Kao
- Department of Laboratory Medicine, MacKay Memorial Hospital, Taipei, Taiwan
| | - Wei-Shieng Wang
- Institute of Infectious Disease, MacKay Memorial Hospital, Taipei, Taiwan
| | - Wei-Cheng Yao
- Department of Anesthesiology and Pain Medicine, Min-Sheng General Hospital, Tao-Yuan, 330, Taiwan
| | - Chi Chen
- Department of Laboratory Medicine, MacKay Memorial Hospital, Taipei, Taiwan
| | - Tse-Yen Yang
- College of Medicine, China Medical University, Taichung, Taiwan. .,Molecular and Genomic Epidemiology Center, China Medical University Hospital, Taichung, Taiwan. .,Division of Nephrology, Department of Internal Medicine, Changhua Christian Hospital, Changhua, Taiwan.
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22
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Lio CF, Cheong HH, Un CH, Lo IL, Tsai SY. The association between meteorological variables and road traffic injuries: a study from Macao. PeerJ 2019; 7:e6438. [PMID: 30775187 PMCID: PMC6376939 DOI: 10.7717/peerj.6438] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 01/11/2019] [Indexed: 11/25/2022] Open
Abstract
Objective Correlation analysis and multiple linear regression analysis were conducted to estimate the influence of meteorological factors on road traffic injuries stratified by severity. Crash rate was defined as mean monthly road traffic accidents per 1,000 vectors. Design Ecological time-series study. Setting Macao traffic accident registry database between January 1st, 2001 and November 31st, 2016. Participants In total, 393,176 traffic accidents and 72,501 cases of road traffic injuries (RTIs) were enrolled; patients’ severity was divided into mild injury, required hospitalisation, and death. Exposure Variation of monthly meteorological factors. Main outcome measure Weather-condition-related road traffic accidents, injuries, and deaths. Results Windy weather significantly correlated with increased number of traffic accidents among all transport vectors (r = .375 to .637; p < 0.001). Multiple linear regression showed temperature (B = 0.704; p < 0.05) and humidity (B = − 0.537; p < 0.001) were independent factors for mild injury. The role of windy weather was relatively more obvious among patients with severe injuries (B = 0.304; p < 0.001) or those who died (B = 0.015; p < 0.001). A longer duration of sunshine was also associated to RTI-related deaths (B = 0.015; p < 0.001). In total, 13.4% of RTIs were attributable to meteorological factors and may be preventable. Conclusion The World Health Organization stated that RTIs are a major but neglected public health challenge. This study demonstrates meteorological factors have significant effects on any degree of RTIs. The results may not be generalized to other climates or populations while the findings may have implications in both preventing injuries and to announce safety precautions regarding trauma and motor vehicle collisions to the general public by public agencies.
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Affiliation(s)
- Chon-Fu Lio
- Macau Association of Health Service Executives, Macau SAR, China
| | - Hou-Hon Cheong
- Macau Association of Health Service Executives, Macau SAR, China
| | - Chon-Hou Un
- Macau Association of Health Service Executives, Macau SAR, China
| | - Iek-Long Lo
- Macau Association of Health Service Executives, Macau SAR, China
| | - Shin-Yi Tsai
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei, Department of Medicine, Graduate Institute of Long-Term Care, Graduate Institute of Biomedical Sciences, Mackay Medical College, New Taipei City, Taiwan.,Department of Health Policy and Management, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, United States of America
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23
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Tsai SY, Lin CL, Shih SC, Hsu CW, Leong KH, Kuo CF, Lio CF, Chen YT, Hung YJ, Shi L. Increased risk of chronic fatigue syndrome following burn injuries. J Transl Med 2018; 16:342. [PMID: 30518392 PMCID: PMC6282352 DOI: 10.1186/s12967-018-1713-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 11/30/2018] [Indexed: 02/02/2023] Open
Abstract
Background The overlapping symptoms and pathophysiological similarities between burn injury and chronic fatigue syndrome (CFS) are noteworthy. Thus, this study explores the possible association between burn injury and the subsequent risk of CFS. Method We used data from the Taiwan National Health Insurance system to address the research topic. The exposure cohort comprised of 17,204 patients with new diagnoses of burn injury. Each patient was frequency matched according to age, sex, index year, and comorbidities with four participants from the general population who did not have a history of CFS (control cohort). Cox proportional hazards regression analysis was conducted to estimate the relationship between burn injury and the risk of subsequent CFS. Result The incidence of CFS in the exposure and control cohorts was 1.61 and 0.86 per 1000 person-years, respectively. The exposure cohort had a significantly higher overall risk of subsequent CFS than did the control cohort (adjusted hazard ratio [HR] = 1.48, 95% confidence interval [CI] = 1.41–1.56). The risk of CFS in patients with burn injury in whichever stratification (including sex, age, and comorbidity) was also higher than that of the control cohort. Conclusion The findings from this population-based retrospective cohort study suggest that thermal injury is associated with an increased risk of subsequent CFS and provided a point of view suggesting burn injuries in sun- exposed areas such as the face and limbs had greater impact on subsequent development of CFS compared with trunk areas. In addition, extensively burned areas and visible scars were predictors of greater physiological and psychosocial that are needed to follow-up in the long run.
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Affiliation(s)
- Shin-Yi Tsai
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei, Taiwan. .,Department of Medicine; Graduate Institute of Long-Term Care, Mackay Medical College, Taipei, Taiwan. .,Department of Health Policy and Management, Johns Hopkins University Bloomberg School of Public Health, Baltimore, United States.
| | - Cheng-Li Lin
- College of Medicine, China Medical University, Taichung City, Taiwan.,Management Office for Health Data, China Medical University Hospital, Taichung City, Taiwan
| | - Shou-Chuan Shih
- Department of Medical Research, Mackay Memorial Hospital, Taipei, Taiwan.,Department of Internal Medicine, Mackay Memorial Hospital, Taipei, Taiwan
| | - Cheng-Wei Hsu
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei, Taiwan.,Department of Medicine; Graduate Institute of Long-Term Care, Mackay Medical College, Taipei, Taiwan
| | - Kam-Hang Leong
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei, Taiwan.,Department of Medicine; Graduate Institute of Long-Term Care, Mackay Medical College, Taipei, Taiwan
| | - Chien-Feng Kuo
- Institute of Infectious Disease, Mackay Memorial Hospital, Taipei, Taiwan
| | - Chon-Fu Lio
- Department of Medicine; Graduate Institute of Long-Term Care, Mackay Medical College, Taipei, Taiwan.,Centro Hospitalar Conde de Sao Januario, Macao, China
| | - Yu-Tien Chen
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei, Taiwan.,Department of Medicine; Graduate Institute of Long-Term Care, Mackay Medical College, Taipei, Taiwan
| | - Yan-Jiun Hung
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei, Taiwan.,Department of Medicine; Graduate Institute of Long-Term Care, Mackay Medical College, Taipei, Taiwan
| | - Leiyu Shi
- Department of Health Policy and Management, Johns Hopkins University Bloomberg School of Public Health, Baltimore, United States.
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Chen CS, Cheng HM, Chen HJ, Tsai SY, Kao CH, Lin HJ, Wan L, Yang TY. Dry eye syndrome and the subsequent risk of chronic fatigue syndrome-a prospective population-based study in Taiwan. Oncotarget 2018; 9:30694-30703. [PMID: 30093979 PMCID: PMC6078132 DOI: 10.18632/oncotarget.25544] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 05/19/2018] [Indexed: 12/13/2022] Open
Abstract
Background and Aim The clinical association between dry eye syndrome (DES) and chronic fatigue syndrome (CFS) remain unclear with less evidences. We aimed to investigate the relationship between CFS and DES using a national insurance and prospective cohort study. Methods Data from the Longitudinal Health Insurance Database 2000 was applied to estimate the incidence of CFS among patients with DES, and their age- and sex-matched controls without DES over a long-term follow-up period. All participants were CFS free at baseline, before the interval (2005-2007), but were later diagnosed with CFS. DES patients and its relative matched controls were excluded prevalent CFS before the same interval. Results We identified 884 patients with DES and 3,536 matched controls in baseline and estimated the hazard ratios for incident CFS in the follow-up period. Patients with DES had a 2.08-fold considerably increasing risk of developing CFS, compared to non-DES group. An elevated risk of developing CFS remained (1.61-fold risk) even after adjusting for age, sex, and comorbidities. There was a presence of increasing risk in DES-related CFS when CFS-related comorbidities existing (adjusted hazard ratio, 1.98, 95% confidence interval, 1.19-3.29; p < 0.01). The subsequent risk for CFS between DES and non-DES patients was significant increased with three or more annual medical visits, the adjusted risk for CFS was 4.88-fold risk (95% CI, 2.26-10.58, p < 0.001). Conclusion We recommended that physicians should be aware of the increased risk of CFS among DES patients and adequately assess the health impacts among these patients.
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Affiliation(s)
- Chih-Sheng Chen
- Department of Chinese Traumatology, Division of Chinese Traumatology Medicine, China Medical University Hospital, China Medical University, Taichung, Taiwan.,Department of Traditional Chinese Medicine, Asia University Hospital, Taichung, Taiwan.,Graduate Institute of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan
| | - Hui-Man Cheng
- Department of Integration of Traditional Chinese and Western Medicine, China Medical University Hospital, Taichung, Taiwan.,School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan
| | - Hsuan-Ju Chen
- Management Office for Health Data, China Medical University Hospital, Taichung, Taiwan.,Department of Public Health, China Medical University, Taichung, Taiwan.,Asia University, Taichung, Taiwan
| | - Shin-Yi Tsai
- Department of Laboratory Medicine, Mackay Memorial Hospital, Mackay Medical College, New Taipei City, Taiwan.,Department of Health Policy and Management, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
| | - Chia-Hung Kao
- Graduate Institute of Clinical Medical Science and School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan.,Department of Nuclear Medicine and PET Center, China Medical University Hospital, Taichung, Taiwan.,Department of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan
| | - Hui-Ju Lin
- School of Chinese Medicine, China Medical University, Taichung, Taiwan.,Department of Ophthalmology, China Medical University Hospital, Taichung, Taiwan
| | - Lei Wan
- School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan.,Department of Biotechnology, Asia University, Taichung, Taiwan.,Department of Obstetrics and Gynecology, China Medical University Hospital, Taichung, Taiwan.,Research Center for Chinese Medicine and Acupuncture, China Medical University, Taichung, Taiwan
| | - Tse-Yen Yang
- Molecular and Genomic Epidemiology Center, China Medical University Hospital, China Medical University, Taichung, Taiwan.,Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan.,Department of Medical Laboratory Science and Biotechnology, China Medical University, Taichung, Taiwan
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Wang LH, Ing NH, Tsai SY, O'Malley BW, Tsai MJ. The COUP-TFs compose a family of functionally related transcription factors. Gene Expr 2018; 1:207-16. [PMID: 1820218 PMCID: PMC5952191] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The chicken ovalbumin upstream promoter transcription factors (COUP-TFs) are members of the steroid/thyroid hormone receptor superfamily and function in transcriptional regulation of a wide variety of genes. The COUP-TFs purified from HeLa nuclear extract by COUP-affinity chromatography are composed of multiple M(r) forms. The Low M(r) COUP-TFs (43,000, 44,000, 46,000, and 47,000 M(r)) produce a relatively fast migrating complex (C1) with DNA in electrophoresis mobility shift assays, while the high M(r) forms (66,000, 68,000, 72,000, and 74,000 M(r)) produce a slower migrating (C2) complex. The high M(r) COUP-TFs were purified by gel filtration chromatography and independently formed the C2 DNA complex, probably acting as dimers. The high M(r) forms are indistinguishable from the low M(r) COUP-TFs in DNA binding and in enhancement of in vitro transcription from the ovalbumin promoter. The finding of multiple COUP-TF forms led us to clone a second low M(r) COUP-TF, "COUP-TF2." The COUP-TF2 sequence has very strong homology with COUP-TF1. The N-termini of COUP-TF1 and COUP-TF2 are least similar, but both contain glutamine-rich and proline-rich motifs, putative activation domains.
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Affiliation(s)
- L H Wang
- Department of Cell Biology, Baylor College of Medicine, Houston, Texas 77030
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Zhen G, Chen H, Tsai SY, Zhang J, Chen T, Jia X. Long-term feasibility and biocompatibility of directly microsurgically implanted intrafascicular electrodes in free roaming rabbits. J Biomed Mater Res B Appl Biomater 2018; 107:435-444. [PMID: 29675920 DOI: 10.1002/jbm.b.34135] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Revised: 02/22/2018] [Accepted: 03/23/2018] [Indexed: 11/08/2022]
Abstract
Novel neural interfaces capable of reliably capturing electrical signals are crucial for the development of prostheses. Longitudinal intrafascicular electrodes (LIFEs) have been proposed as a promising technology, and their feasibility and biocompatibility need to be investigated for long-term implantation. In this study, custom-designed 95%Pt-5%Ir intrafascicular electrodes were implanted into the sciatic nerves of 14 rabbits using our novel direct microsurgical technique. The biocompatibility and their ability to record electrophysiological signals were serially investigated up to 9 months after implantation. Nerve tissues were examined using light and transmitted electron microscopy, and axon diameters were quantified, evaluated over time, and compared with sham-control (N = 4). Selective stimulation and stable recording properties of electrical signals were achieved by intrafascicular electrodes along the experimental period. While electrophysiological signal amplitude decreased by as early as 1 month after implantation (p < 0.05), the signal strength recovered to baseline levels by 3-5 months (p > 0.05). Axon diameter results showed a similar trend of initial decline (10.8% reduction, p < 0.01) followed by gradual recovery by 6 months (p > 0.05). Microstructural and ultrastructural analysis revealed modest tissue damage at the implantation site after implantation with gradual normalization over time. Intrafascicular electrodes implanted with direct microsurgical techniques demonstrated good biocompatibility and have great potential for long-term implantation and electrophysiological recordings. Though subtle tissue damage impaired ability to capture electrophysiological signals in the first 2 months, this damage gradually normalized after 3 months, and was fully normalized by 6 months. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 107B: 435-444, 2019.
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Affiliation(s)
- Gehua Zhen
- Department of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205
| | - Huanwen Chen
- Department of Neurosurgery, University of Maryland School of Medicine, Baltimore, Maryland, 21201
| | - Shin-Yi Tsai
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205
| | - Jian Zhang
- Department of Orthopedic Surgery, Zhong Shan Hospital, Fudan University, Shanghai, China
| | - Tongyi Chen
- Department of Orthopedic Surgery, Zhong Shan Hospital, Fudan University, Shanghai, China
| | - Xiaofeng Jia
- Department of Neurosurgery, University of Maryland School of Medicine, Baltimore, Maryland, 21201.,Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205.,Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205.,Department of Orthopaedics, University of Maryland School of Medicine, Baltimore, Maryland, 21201.,Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, Maryland, 21201
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Tsai SY, Chen HJ, Lio CF, Ho HP, Kuo CF, Jia X, Chen C, Chen YT, Chou YT, Yang TY, Sun FJ, Shi L. Increased risk of herpes zoster in patients with psoriasis: A population-based retrospective cohort study. PLoS One 2017; 12:e0179447. [PMID: 28829784 PMCID: PMC5567491 DOI: 10.1371/journal.pone.0179447] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 05/29/2017] [Indexed: 12/22/2022] Open
Abstract
Objectives The risk of herpes zoster (HZ) between patients with psoriasis receiving and not receiving systemic therapy has received increasing attention. This study investigated the association of psoriasis with the risk of HZ. Methods We conducted a population-based retrospective cohort study by using the Taiwan National Health Insurance Research Database. The psoriasis cohort consisted of 4077 patients with newly diagnosed psoriasis between 2000 and 2006. Each patient with psoriasis was frequency-matched with four people without psoriasis, by sex, age and index year. (nonpsoriasis cohort; 16308 subjects). Patients who received systemic therapy were classified as having severe psoriasis, whereas those who did not receive systemic therapy were classified as having mild psoriasis. The Cox proportional hazards regression analysis was conducted to estimate the association between psoriasis and HZ risk. Results The overall incidence density rate of HZ in the psoriasis cohort than in the nonpsoriasis cohort (4.50 vs. 3.44 per 1,000 person-years), with a multivariable Cox proportional hazards model measured adjusted HR of 1.29 [95% confidence interval (CI) = 1.07–1.56]. In additional, compared with the nonpsoriasis cohort, the risk of HZ was higher in the severe psoriasis cohort than in the nonpsoriasis cohort (adjusted hazard ratio [HR], 1.61; 95% confidence interval [CI], 1.15–2.27). The comparison between psoriasis and nonpsoriasis cohorts revealed a greatest magnitude risk of HZ in women (adjusted HR, 1.36; 95% CI, 1.04–1.79), study participants in the age group of 20–39 years (adjusted HR, 1.77; 95% CI, 1.17–2.66), and study participants without any comorbidities (adjusted HR, 1.37; 95% CI, 1.02–1.84). Conclusions Our results suggest that psoriasis is associated with an increased risk of HZ, which involves differences in sex and age. Although systemic therapy may have a major role in the risk of HZ, the intrinsic factors of psoriasis cannot be excluded.
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Affiliation(s)
- Shin-Yi Tsai
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei City, Taiwan
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan
- Department of Health Policy and Management, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, United States
- * E-mail: (SYT); (LS)
| | - Hsuan-Ju Chen
- Management Office for Health Data, China Medical University Hospital, Taichung City, Taiwan
- College of Medicine, China Medical University, Taichung City, Taiwan
| | - Chon-Fu Lio
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei City, Taiwan
- Centro Hospitalar Conde de São Januário, Macao
| | - Hui-Ping Ho
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei City, Taiwan
| | - Chien-Feng Kuo
- Department of Infectious Disease, Mackay Memorial Hospital, Taipei City, Taiwan
| | - Xiaofeng Jia
- Department of Neurosurgery, University of Maryland School of Medicine, Baltimore, Maryland, United States
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland, United States
| | - Chi Chen
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei City, Taiwan
- Department of Psychiatry, University of Oxford, Oxford, United Kingdom
| | - Yu-Tien Chen
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei City, Taiwan
| | - Yi-Ting Chou
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei City, Taiwan
| | - Tse-Yen Yang
- Molecular and Genomic Epidemiology Center, China Medical University Hospital, Taichung City, Taiwan
- Division of Nephrology, Department of Internal Medicine, Changhua Christian Hospital, Changhua County, Lugang Town, Taiwan
| | - Fang-Ju Sun
- Department of Medical Research, Mackay Memorial Hospital, Taipei City, Taiwan
- Mackay Junior College of Medicine, Nursing and Management, Taipei City, Taiwan
| | - Leiyu Shi
- Department of Health Policy and Management, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, United States
- * E-mail: (SYT); (LS)
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Abstract
Several hypotheses have been proposed to explain the etiopathogenesis of chronic fatigue syndrome (CFS), including immune dysregulation. However, few population-based prospective cohort studies have been conducted on CFS and atopy. We investigated the relationship between atopy and CFS by using a population-based cohort study. In this prospective, population-based cohort study of the National Health Insurance Research Database, we identified 42,558 patients with atopy and 170,232 patients without atopy from 2005 to 2007 with follow-up to 2011. The incidence rates and risks for CFS were estimated using Cox proportion hazards regression. The overall incidence rate of CFS was higher in the atopy cohort compared with the nonatopy cohort (1.37 versus 0.87 per 1000 person-year), with an adjusted hazard ratio of 1.48 (95% confidence interval 1.30-1.69). The risk of CFS in the atopy cohort increased 1.47- to 1.50-fold for each nonexisting comorbidity. Patients with numerous atopic symptoms exhibited a biological gradient of increasing risk for CFS, and the risk changed significantly after adjustment for age, sex, and comorbidities, increasing from 1.46- to 2.59-fold. We revealed that atopy is associated with CFS, particularly in patients with numerous atopic syndromes. The actual mechanism for CFS development in patients with atopy remains unclear and requires further investigation. We recommend researching the subsequent fatigue symptom in patients with atopy, particularly those with multiple atopic syndromes.
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Affiliation(s)
- Tse-Yen Yang
- From the Molecular and Genomic Epidemiology Center, China Medical University Hospital, China Medical University, Taichung (T-YY); Division of Nephrology, Department of Internal Medicine, Changhua Christian Hospital, Changhua (T-YY); Department of Developmental and Behavioral Pediatrics, China Medical University Hospital (H-TK); School of Medicine, China Medical University (H-TK); Management Office for Health Data, China Medical University Hospital (H-JC); Department of Public Health, China Medical University; Asia University (H-JC); Division of Chinese Trauma, China Medical University Hospital, China Medical University, Taichung (C-SC); Department of Diagnostic Radiology, Chang Gung Memorial Hospital, Chiayi (W-ML); Chang Gung University, Taoyuan (W-ML); Department of Laboratory Medicine (Clinical Pathology), Mackay Memorial Hospital, Taipei (S-YT); Department of Health Policy and Management, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD (S-YT); Kau-Tang Traditional Medical Hospital (C-NK); Department of Nuclear Medicine and PET Center, China Medical University Hospital (C-HK); and Graduate Institute of Clinical Medical Science and School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan (C-HK)
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Tsai SY, Lin CL, Wong YC, Yang TY, Kuo CF, Cheng JM, Wang JS, Kao CH. Increased Risk of Herpes Zoster Following Dermatomyositis and Polymyositis: A Nationwide Population-Based Cohort Study. Medicine (Baltimore) 2015; 94:e1138. [PMID: 26181551 PMCID: PMC4617095 DOI: 10.1097/md.0000000000001138] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
This study explored the possible association between dermatomyositis or polymyositis (DM or PM) and the subsequent risk of herpes zoster (HZ). We used data from the Taiwan National Health Insurance (NHI) system to address the research topic. The exposure cohort comprised 2023 patients with new diagnoses of DM or PM. Each patient was frequency matched according to age, sex, index year, and comorbidities including diabetes, renal disease, obesity, malignancy, rheumatoid arthritis, immunodeficiency virus infection, autoimmune disease not elsewhere classified, mixed connective tissue disease, or vasculitis with 4 participants from the general population who did not have a history of HZ (control cohort). Cox proportional hazards regression analysis was conducted to estimate the relationship between DM or PM and the risk of subsequent HZ. The incidence of HZ in the exposure and control cohorts was 35.8 and 7.01 per 1000 person-years, respectively. The exposure cohort had a significantly higher overall risk of subsequent HZ than did the control cohort (adjusted hazard ratio [HR] = 3.90, 95% confidence interval [CI] = 3.18-4.77). The risk of HZ in patients with DM or PM in whichever stratification (including sex, age, and comorbidity) was also higher than that of the control cohort. The findings from this population-based retrospective cohort study suggest that DM or PM is associated with an increased risk of subsequent HZ. A synergistic effect was observed between DM or PM and one of the comorbidities.
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Affiliation(s)
- Shin-Yi Tsai
- From the Department of Laboratory Medicine, Mackay Memorial Hospital, Mackay Medical College, New Taipei City, Taiwan (S-YT); Department of Health Policy and Management, Bloomberg School of Public Health, Johns Hopkins University, USA (S-YT); Management Office for Health Data, China Medical University Hospital (C-LL); College of Medicine, China Medical University, Taichung (C-LL); Department of Medicine, National Defense Medical Center, Taipei (Y-CW); Molecular and Genomic Epidemiology Center, China Medical University Hospital, China Medical University, Taichung (T-YY); Division of Nephrology, Department of Internal Medicine, Changhua Christian Hospital, Changhua (T-YY); Division of Infectious Disease, Department of Medicine, Mackay Memorial Hospital (C-FK); Institute of Biomedical Engineering, National Taiwan University, Taipei (J-MC); Department of Pathology and Laboratory Medicine, Kaohsiung Veterans General Hospital, Kaohsiung (J-SW); Department of Nuclear Medicine and PET Center, China Medical University Hospital, Taichung (C-HK); and Graduate Institute of Clinical Medical Science and School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan (C-HK)
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Tsai SY, Er TK, Lin CW, Chang JG. Comprehensive Analysis of UGT1A1 Polymorphisms through High-Resolution Melting Analysis and DNA Sequencing. Clin Lab 2014; 60:1015-26. [DOI: 10.7754/clin.lab.2013.130707] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Wu J, Liu YL, Chang SJ, Chao MM, Tsai SY, Huang DE. Dose point kernel simulation for monoenergetic electrons and radionuclides using Monte Carlo techniques. Radiat Prot Dosimetry 2012; 152:119-124. [PMID: 22923242 DOI: 10.1093/rpd/ncs204] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Monte Carlo (MC) simulation has been commonly used in the dose evaluation of radiation accidents and for medical purposes. The accuracy of simulated results is affected by the particle-tracking algorithm, cross-sectional database, random number generator and statistical error. The differences among MC simulation software packages must be validated. This study simulated the dose point kernel (DPK) and the cellular S-values of monoenergetic electrons ranging from 0.01 to 2 MeV and the radionuclides of (90)Y, (177)Lu and (103 m)Rh, using Fluktuierende Kaskade (FLUKA) and MC N-Particle Transport Code Version 5 (MCNP5). A 6-μm-radius cell model consisting of the cell surface, cytoplasm and cell nucleus was constructed for cellular S-value calculation. The mean absolute percentage errors (MAPEs) of the scaled DPKs, simulated using FLUKA and MCNP5, were 7.92, 9.64, 4.62, 3.71 and 3.84 % for 0.01, 0.1, 0.5, 1 and 2 MeV, respectively. For the three radionuclides, the MAPEs of the scaled DPKs were within 5 %. The maximum deviations of S(N←N), S(N←Cy) and S(N←CS) for the electron energy larger than 10 keV were 6.63, 6.77 and 5.24 %, respectively. The deviations for the self-absorbed S-values and cross-dose S-values of the three radionuclides were within 4 %. On the basis of the results of this study, it was concluded that the simulation results are consistent between FLUKA and MCNP5. However, there is a minor inconsistency for low energy range. The DPK and the cellular S-value should be used as the quality assurance tools before the MC simulation results are adopted as the gold standard.
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Affiliation(s)
- J Wu
- Department of Biomedical Imaging and Radiological Science, China Medical University, 40402 Taichung, Taiwan, ROC
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Huang SM, Tsai SY, Lin JA, Wu CH, Yen GC. Cytoprotective effects of hesperetin and hesperidin against amyloid β-induced impairment of glucose transport through downregulation of neuronal autophagy. Mol Nutr Food Res 2012; 56:601-9. [PMID: 22383310 DOI: 10.1002/mnfr.201100682] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2011] [Revised: 11/08/2011] [Accepted: 11/25/2011] [Indexed: 11/09/2022]
Abstract
SCOPE This study investigated whether flavonoids, such as hesperetin and hesperidin, inhibited amyloid β (Aβ)-impaired glucose utilization through regulating cellular autophagy in insulin-stimulated neuronal cells. METHODS AND RESULTS In this study, we used a toxic Aβ1-42 peptide to impair insulin-stimulated glucose utilization in Neuro-2A cells, and this study also hypothesized that Aβ-induced autophagy might be emerging as a key process regulating neuronal glucose uptake. Additionally, hesperetin and hesperidin were used to test the neuroprotective effect against Aβ-induced impairment of glucose utilization. Our data found that Aβ-stimulated autophagy activation promoted the phenomenon of impairment of neuronal energy metabolism, including glucose uptake, glucose transporters (GLUTs), and insulin signaling cascades. In this study, confocal images of autophagy punctate further confirmed that downregulation of Aβ-stimulated autophagy could increase insulin-stimulated neuronal glucose uptake. Moreover, treatment with hesperetin and hesperidin improved Aβ-impaired glucose utilization by inhibiting Aβ-induced autophagy in neuronal cells. CONCLUSION These findings suggest that downregulation of autophagy may be one of the approaches to control the impairment of energy metabolism leading to neuronal injury in the early development of Alzheimer's disease, and hesperetin or hesperidin may be a potential agent in the preventing of Alzheimer's disease progression.
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Affiliation(s)
- Shang-Ming Huang
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung, Taiwan
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Kuo CF, Tsai SY, Liu TC, Lin CC, Liu CP, Lee CM. Clinical characteristics and treatment outcomes of patients with tubo-ovarian abscess at a tertiary care hospital in Northern Taiwan. J Microbiol Immunol Infect 2011; 45:58-64. [PMID: 22154676 DOI: 10.1016/j.jmii.2011.09.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2011] [Revised: 03/20/2011] [Accepted: 03/23/2011] [Indexed: 11/18/2022]
Abstract
BACKGROUND/PURPOSE Controversy exists regarding the need for surgical intervention in patients with tubo-ovarian abscess (TOA). This study was aimed at investigating the clinical characteristics and treatment outcomes in patients with TOA at a tertiary care hospital in Taiwan. METHODS The medical records of 83 patients who presented at the hospital with TOA between January 1, 2006, and December 31, 2007, were retrospectively reviewed. Outcomes of patients who received medical treatment alone or underwent surgical intervention were analyzed using univariate and logistic regression analyses. RESULTS Among the 83 patients with TOA, 13 patients (15.7%) underwent surgical intervention, and 70 patients (84.3%) received medical treatment alone. Significant variables related to surgical treatment in the univariate analysis were length of stay (short vs. long; t = -2.267, p = 0.026), department of admission (emergency room vs. outpatient department; χ(2) = 7.459, p = 0.006), number of live births (nulliparous vs. multiparous; χ(2) = 18.202, p = 0.001), and C-reactive protein (CRP) level (high vs. low; t = -2.250, p = 0.028). Logistic regression analysis performed to determine influential factors for surgical treatment showed that the operation odds ratio of three to four live births versus no live births was 33.995 (p = 0.043) and that of two live births versus no live births was 13.598 (p = 0.026). CONCLUSION Patients with TOA who underwent surgery had a longer duration of hospitalization. Among the patients who underwent surgical intervention, those admitted to the emergency room had higher CRP levels and were more likely to be multiparous.
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Affiliation(s)
- Chien-Feng Kuo
- Division of Infectious Disease, Department of Medicine, Mackay Memorial Hospital, Taipei, Taiwan
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Pradhan AD, Case AM, Farrer RG, Tsai SY, Cheatwood JL, Martin JL, Kartje GL. Dendritic spine alterations in neocortical pyramidal neurons following postnatal neuronal Nogo-A knockdown. Dev Neurosci 2010; 32:313-20. [PMID: 20938157 DOI: 10.1159/000309135] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2009] [Accepted: 03/17/2010] [Indexed: 11/19/2022] Open
Abstract
The myelin-associated protein Nogo-A is a well-known inhibitor of axonal regeneration and compensatory plasticity, yet functions of neuronal Nogo-A are not as clear. The present study examined the effects of decreased levels of neuronal Nogo-A on dendritic spines of developing neocortical neurons. Decreased Nogo-A levels in these neurons resulted in lowered spine density and an increase in filopodial type protrusions. These results suggest a role for neuronal Nogo-A in maintaining a spine phenotype in neocortical pyramidal cells.
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Affiliation(s)
- A D Pradhan
- Department of Anatomy, Southern Illinois University School of Medicine, Carbondale, Ill., USA
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Chen YH, Jian JJM, Chan KY, Tsai SY, Cheng SH, Yen KCL, Cheng JCH. Definitive chemoirradiation for resectable head and neck cancer: treatment outcome and prognostic significance of MRI findings. Br J Radiol 2008; 81:490-8. [PMID: 18487389 DOI: 10.1259/bjr/23571630] [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: 11/05/2022] Open
Abstract
The aim of this study was to evaluate the outcome and prognosticators for patients with resectable head and neck cancer (RHNC) undergoing definitive concurrent chemotherapy and radiotherapy (CCRT). In total, 110 RHNC patients receiving definitive CCRT to defer radical surgery were enrolled. Radiotherapy was given as either 2 Gy once daily with 70 Gy, or 1.2 Gy twice daily with 74.4 Gy. Chemotherapy involved the administration of 5-fluorouracil and cisplatin in two concomitant and two post-radiotherapy adjuvant cycles. 3 months after CCRT, MRI was performed to evaluate the response and determine further treatment plans. Survival outcome was calculated by the Kaplan-Meier method. Log-rank test and Cox regression analyses were used to estimate the significance of prognosticators. 4-year local-regional control, distant metastasis-free survival, disease-free survival and overall survival rates were 76.1%, 85.6%, 67.5% and 53.2%, respectively. Local recurrence (odds ratio = 4.09; p < 0.0001) and T3/T4 stage (odds ratio = 2.34; p = 0.01) were the independent factors associated with poor survival. T stage (odds ratio = 3.29; p = 0.03) and/or remission status on post-CCRT MRI (odds ratio = 7.22; p < 0.0001) were significantly associated with local control, distant metastasis-free survival and disease-free survival. 13 of 20 patients with imaging residuum had local recurrence, compared with 12 of 89 with complete remission (4-year local control rate of 27% vs 86%; p < 0.0001). Post-CCRT MRI may thus be used to predict the chance of a successful non-surgical approach.
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Affiliation(s)
- Y-H Chen
- Division of Radiation Oncology, Department of Oncology, National Taiwan University Hospital, Taipei 100, Taiwan
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Yang CY, Chao PDL, Hou YC, Tsai SY, Wen KC, Hsiu SL. Marked decrease of cyclosporin bioavailability caused by coadministration of ginkgo and onion in rats. Food Chem Toxicol 2006; 44:1572-8. [PMID: 16762474 DOI: 10.1016/j.fct.2006.04.008] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2005] [Revised: 02/08/2006] [Accepted: 04/19/2006] [Indexed: 11/27/2022]
Abstract
Quercetin was reported to modulate CYP isoenzymes and P-glycoprotein (Pgp), a drug efflux transporter. Our previous study reported that quercetin significantly decreased the bioavailability of cyclosporin, a substrate for CYP3A4 and Pgp, in rats and pigs. Ginkgo and onion contain quercetin and its glycosides as St. John's Wort. The coadministration of cyclosporin with ginkgo or onion may be subject to clinically relevant interactions as St. John's Wort. Therefore, this study aimed to investigate the influences of ginkgo and onion on the absorption and disposition of cyclosporin in rats. Cyclosporin was administered orally and intravenously to rats with and without an oral dose of ginkgo or onion in crossover designs. Blood samples were collected via cardiopuncture and blood cyclosporin concentration was assayed by a specific monoclonal fluorescence polarization immunoassay. Everted gut sac was used to investigate the effects of ginkgo and onion on the function of intestinal Pgp. Oral coadministration of ginkgo and onion significantly decreased the Cmax of cyclosporin by 62% and 60%, and reduced the AUC0-t by 51% and 68%, respectively, whereas no influence was observed when cyclosporin was given intravenously. This indicates that the interactions between cyclosporin and ginkgo or onion occurred mainly at the absorption site. In conclusion, ginkgo and onion markedly decreased the oral bioavailability of cyclosporin. We suggest that concurrent intake of quercetin-rich herbs or foods with cyclosporin are better avoided in order to ensure the efficacy of cyclosporin.
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Affiliation(s)
- C Y Yang
- Institute of Chinese Pharmaceutical Sciences, China Medical University, Taichung 404, Taiwan, ROC
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37
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Hou YC, Ching H, Chao PDL, Tsai SY, Wen KC, Hsieh PH, Hsiu SL. Effects of glucose, fructose and 5-hydroxymethyl-2-furaldehyde on the presystemic metabolism and absorption of glycyrrhizin in rabbits. J Pharm Pharmacol 2005; 57:247-51. [PMID: 15720790 DOI: 10.1211/0022357055281] [Citation(s) in RCA: 12] [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] [Indexed: 10/31/2022]
Abstract
Our previous study reported that co-administration of honey significantly increased the serum levels of glycyrrhetic acid (GA) after oral administration of glycyrrhizin (GZ) in rabbits. The components of honey are sucrose, glucose, fructose and 5-hydroxymethyl-furaldehyde (HMF). To clarify the causative component(s) in honey that altered the metabolic pharmacokinetics of GZ, rabbits were given GZ (150 mg kg(-1)) with and without glucose (5 g/rabbit), fructose (5 g/rabbit) and HMF (1 mg kg(-1)), respectively, in crossover designs. An HPLC method was used to determine concentrations of GZ and GA in serum as well as GA and 3-dehydroglycyrrhetic acid (3-dehydroGA) in faeces suspension. A noncompartment model was used to calculate the pharmacokinetic parameters and analysis of variance was used for statistical comparison. Our results indicated that the area under curve (AUC) of GA was significantly increased by 29% when HMF was coadministered, whereas the pharmacokinetics of GZ and GA were not significantly altered by coadministration of glucose or fructose. An in-vitro study, using faeces to incubate GZ and GA individually, indicated that HMF significantly inhibited the oxidation of GA to 3-dehydroGA and this may explain the enhanced GA absorption in-vivo. It was concluded that HMF is the causative component in honey that affects the presystemic metabolism and pharmacokinetics of GZ in-vivo.
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Affiliation(s)
- Y C Hou
- School of Chinese Medicine, China Medical University, Taichung, Taiwan, 404, R.O.C
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38
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Tsai SY, Chi LY, Cheng CY, Hsu WM, Liu JH, Chou P. The Impact of Visual Impairment and Use of Eye Services on Health-Related Quality of Life among the Elderly in Taiwan: The Shihpai Eye Study. Qual Life Res 2004; 13:1415-24. [PMID: 15503837 DOI: 10.1023/b:qure.0000040791.87602.fe] [Citation(s) in RCA: 28] [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] [Indexed: 11/12/2022]
Abstract
To evaluate the effect of impaired vision on health-related quality of life (HRQoL), the authors administered the Medical Outcomes Survey Short-Form 36 (SF-36) to the elderly in a metropolitan Taiwanese community and assessed their visual impairment status. A structured questionnaire was used for door-to-door data collection. Interviewers also collected information on demographics, medical history, and HRQoL. Those who were interviewed were invited to the study hospital for a detailed eye examination. An eye examination, including presenting visual acuity and best-corrected visual acuity, was conducted by ophthalmologists. Presenting visual acuity and best-corrected visual acuity were measured in the better eye. Impaired vision was defined as presenting visual acuity in the better-seeing eye worse than 6/12 (or 20/40) and was used to evaluate the correlation to HRQoL. A total of 1361 subjects at least 65 years of age participated in both the interview and eye examination. Internal-consistency and test-retest reliability of the eight scales were high. Based on the separate multiple regression model, after controlling for all other covariates, subjects in contact with vision services offered by an ophthalmologist had more positive scores on general health perceptions (beta = 4.29; p < 0.001), vitality/energy (beta = 2.73; p < 0.001), and mental health (beta = 2.06; p = 0.01). Impaired vision was associated with significantly lower scores in physical functioning (beta = -3.62; p < 0.001) and social functioning scales (beta = -3.25; p = 0.015). The findings suggest that visual impairment is associated with lower quality of life and use of eye care services is associated with higher quality of life.
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Affiliation(s)
- S Y Tsai
- Community Medicine Research Center and Institute of Public Health, National Yang-Ming University, Shihpai, Taipei, Taiwan
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Ichikawa H, Lin SC, Tsai SY, Tsai MJ, Sugimoto T. Effect of mCOUP-TF1 deficiency on the glossopharyngeal and vagal sensory ganglia. Brain Res 2004; 1014:247-50. [PMID: 15213010 DOI: 10.1016/j.brainres.2004.04.024] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/09/2004] [Indexed: 11/18/2022]
Abstract
Immunohistochemistry for calcitonin gene-related peptide (CGRP), tyrosine hydroxylase and calbindin D-28k was performed on the glossopharyngeal and vagal ganglia in mCOUP-TFI knockout mice to know the effect of its deficiency on different types of primary sensory neurons. In wild type and heterozygous mice, the glossopharyngeal and vagal ganglia contained abundant CGRP-, tyrosine hydroxylase- and calbindin D-28k-immunoreactive (IR) neurons. In the ganglia of mCOUP-TFI knockout mice, a 38% decrease of CGRP-IR neurons was detected. However, the number of tyrosine hydroxylase- or calbindin D-28k-neurons was not altered by the mCOUP-TFI deficiency. In the tongue of knockout mice, the number of CGRP-IR nerve fibers decreased compared to wild-type and heterozygous mice. The development of CGRP-IR petrosal neurons, which supply innervation of the tongue, may depend on mCOUP-TFI.
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Affiliation(s)
- H Ichikawa
- Department of Oral Function and Anatomy, Okayama University Graduate School of Medicine and Dentistry, Okayama, Japan.
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40
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Abstract
The lung is a complex organ consisting of numerous cell types that function to ensure sufficient gas exchange to oxygenate the blood. In order to accomplish this function, the lung must be exposed to the external environment and at the same time maintain a homeostatic balance between its function in gas exchange and the maintenance of inflammatory balance. During the past two decades, as molecular methodologies have evolved with the sequencing of entire genomes, the use of in vivo models to elucidate the molecular mechanisms involved in pulmonary physiology and disease have increased. The mouse has emerged as a potent model to investigate pulmonary physiology due to the explosion in molecular methods that now allow for the developmental and tissue-specific regulation of gene transcription. Initial efforts to manipulate gene expression in the mouse genome resulted in the generation of transgenic mice characterized by the constitutive expression of a specific gene and knockout mice characterized by the ablation of a specific gene. The utility of these original mouse models was limited, in many cases, by phenotypes resulting in embryonic or neonatal lethality that prevented analysis of the impact of the genetic manipulation on pulmonary biology. Second-generation transgenic mouse models employ multiple strategies that can either activate or silence gene expression thereby providing extensive temporal and spatial control of the experimental parameters of gene expression. These highly regulated mouse models are intended to serve as a foundation for further investigation of the molecular basis of human disease such as tumorigenesis. This review describes the principles, progress, and application of systems that are currently employed in the conditional regulation of gene expression in the investigation of lung cancer.
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Affiliation(s)
- I Kwak
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas 77030, USA
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41
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Abstract
Corticosterone is the main adrenal glucocorticoids induced by stress in rats. Therapeutic use of high concentration of synthetic glucocorticoids in clinical treatment of spinal cord injury suggests that pharmacological action of glucocorticoids might be beneficial for nerve repair. In this article we cultured axotomized rat dorsal root ganglion neurons to investigate the effects of corticosterone and a glutamate receptor agonist kainic acid on neurite outgrowth. Our results revealed a synergistic effect of corticosterone and kainic acid in promoting neurite outgrowth when applied as early as one and two days in vitro, but not effective at three and four days in vitro. In addition, applied corticosterone and kainic acid were neurotoxic at three and four days in vitro but not at one and two days in vitro. The minimal concentrations of corticosterone and kainic acid to be effective were 10 microM and 1 mM, respectively. The neurotrophic effect of corticosterone and kainic acid was attenuated by the receptor tyrosine kinase A (TrkA) inhibitor AG-879. Western blot analysis and immunocytochemical studies revealed an increase of expressions of both TrkA and growth-associated protein GAP-43 in dorsal root ganglion neurons with combined treatment of corticosterone and kainic acid. Immunocytochemistry showed that corticosterone+kainic acid increase nerve growth factor immunoreactivity in dorsal root ganglion neurites and enhance GAP-43 immunointensity in dorsal root ganglion neurons. These results suggest that the neurotrophic effect of glucocorticoids on axonal regeneration might require facilitation of excitatory stimulation at an early stage of nerve injury, and nerve growth factor may mediate a growth signaling to accomplish the effect.
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MESH Headings
- Animals
- Calcitonin Gene-Related Peptide/metabolism
- Cells, Cultured
- Corticosterone/pharmacology
- Dose-Response Relationship, Drug
- Drug Interactions/physiology
- Drug Therapy, Combination
- GAP-43 Protein/drug effects
- GAP-43 Protein/metabolism
- Ganglia, Spinal/drug effects
- Ganglia, Spinal/growth & development
- Ganglia, Spinal/metabolism
- Growth Cones/drug effects
- Growth Cones/metabolism
- Growth Cones/ultrastructure
- Immunohistochemistry
- Kainic Acid/pharmacology
- Male
- Nerve Regeneration/drug effects
- Nerve Regeneration/physiology
- Neurites/drug effects
- Neurites/metabolism
- Neurites/ultrastructure
- Neurons, Afferent/cytology
- Neurons, Afferent/drug effects
- Neurons, Afferent/metabolism
- Rats
- Rats, Sprague-Dawley
- Receptor, Nerve Growth Factor/antagonists & inhibitors
- Receptor, Nerve Growth Factor/metabolism
- Receptor, trkA/drug effects
- Receptor, trkA/metabolism
- Receptors, AMPA/metabolism
- Receptors, Kainic Acid/metabolism
- Tyrphostins/pharmacology
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Affiliation(s)
- S Y Tsai
- Department of Physiology, Taipei Medical University, 250 Wu-Hsing Street, Taipei 110, Taiwan
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Tsai SY, Hsieh TC, Ardelt B, Darzynkiewicz Z, Wu JM. Combined effects of onconase and IFN-beta on proliferation, macromolecular syntheses and expression of STAT-1 in JCA-1 cancer cells. Int J Oncol 2002; 20:891-6. [PMID: 11956580] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023] Open
Abstract
Prostate cancer (CaP), the most common malignancy in American men, presents its greatest challenge to clinicians when the cancer progresses to the hormone-refractory state. In the present investigation, we studied the combined effects of interferon (IFN) and onconase, each of which has reported antitumor activity, on growth and specific protein expression in JCA-1 cells. Cells were treated for up to 3 days with 1 and 5 microg/ml onconase, with and without concurrent addition of IFN-beta(ser) (10(3) IU/ml). Cell count and viability, and de novo RNA and protein synthesis were determined. Expression and subcellular distribution of STAT-1 were also assessed by immunoblot analysis. JCA-1 cells treated for 3 days with IFN or onconase showed a 15-30% reduction in cell proliferation, which was increased to 42-51% with both agents. Analysis of [35S]methionine incorporation into cells confirmed a more pronounced inhibitory effect elicited by IFN-beta and onconase; IFN-beta and 1 microg/ml onconase each decreased de novo protein synthesis by 23-25%, while the combination resulted in 59% suppression. Similar studies using incorporation of [3H]uridine into RNA yielded less significant effects. Further investigation using pre-labeled cellular RNA and proteins showed that either agent or their combination did not affect the turnover of macromolecules. To test whether the antiproliferative effects of IFN-beta and onconase were correlated with one or more specific gene changes, expression of an IFN-modulated protein, STAT-1, was determined. Both phosphorylated and unphosphorylated forms of STAT-1 and its subcellular distribution in the nucleus and cytoplasm, were increased 3-fold by IFN-beta. The IFN-elicited elevation of STAT-1 was not additionally augmented by onconase but was reduced 20-25% when onconase was simultaneously present as IFN-beta. These data show that the overall changes in STAT-1 did not correlate with the reduction in cell growth and the suppression of de novo protein/RNA synthesis elicited by these two agents, and imply that other target proteins are likely to be involved in the combined effects of IFN-beta and onconase in JCA-1 cells.
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Affiliation(s)
- S Y Tsai
- Department of Biochemistry and Molecular Biology, New York Medical College, Valhalla, NY 10595, USA
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43
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Abstract
Lung fibroblasts are activated to proliferate and produce connective tissue during the development of lung fibrosis. The 129 mouse strain does not develop asbestos-induced fibrogenesis, whereas several other inbred strains rapidly respond to inhaled fibers. Thus, in the experiments presented here, we have compared the responses of primary lung fibroblasts isolated from 129 and C57BL/6 mice. The 129 and C57BL/6 mouse lung fibroblasts (MLFs) proliferated similarly in 10% fetal bovine serum (FBS), but after quiescence, the 129 MLFs grew more slowly in serum and responded less to the BB isoform of platelet-derived growth factor. This is consistent with our finding that the mRNA for the PDGF-a receptor exhibits reduced expression by the 129 MLFs compared to those from C57BL/6 mice. Fibroblasts from the SJL mouse strain, from a C57BL/6-129 hybrid, and from the 3T3 cell line all proliferated more vigorously than MLFs from the 129 mice. In addition, the 129 MLFs exhibited reduced expression of alpha1 procollagen mRNA consequent to treatment with tumor necrosisfactor alpha. Based on these new findings, we suggest that the reduced fibrogenesis in asbestos-exposed 129 mice is due to an intrinsic difference in the ability of the lung fibroblasts to respond to peptide growth factors.
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Affiliation(s)
- D M Brass
- Department of Pathology, Tulane University Health Sciences Center, New Orleans, Louisiana 70112-2699, USA
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44
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Abstract
We have previously demonstrated that overexpression of Cdc25B in transgenic mice resulted in mammary gland hyperplasia and increased steroid hormone responsiveness. To address how Cdc25B enhances the hormone responsiveness in mammary glands, we showed that Cdc25B stimulates steroid receptor-dependent transcription in transient transfection assays and in a cell-free assay with chromatin templates. Surprisingly, the effect of Cdc25B on steroid receptors is independent of its protein phosphatase activity in vitro. The direct interactions of Cdc25B with steroid receptors, on the other hand, were evidenced in in vivo and in vitro assays, suggesting the potential direct contribution of Cdc25B on the steroid receptor-mediated transcription. In addition, p300/CBP-associated factor and CREB binding protein were shown to interact and synergize with Cdc25B and further enhance its coactivation activity. Thus, we have uncovered a novel function of Cdc25B that serves as a steroid receptor coactivator in addition to its role as a regulator for cell cycle progression. This dual function might likely contribute to its oncogenic action in breast cancer.
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Affiliation(s)
- Z Q Ma
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas 77030, USA
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45
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Liu Z, Wong J, Tsai SY, Tsai MJ, O'Malley BW. Sequential recruitment of steroid receptor coactivator-1 (SRC-1) and p300 enhances progesterone receptor-dependent initiation and reinitiation of transcription from chromatin. Proc Natl Acad Sci U S A 2001; 98:12426-31. [PMID: 11606780 PMCID: PMC60070 DOI: 10.1073/pnas.231474798] [Citation(s) in RCA: 89] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/07/2001] [Indexed: 11/18/2022] Open
Abstract
Employing a cell-free chromatin transcription system that recapitulates progesterone receptor (PR)-mediated transcription in vivo, we have investigated further the coactivator functions of steroid receptor coactivator-1 (SRC-1) in terms of its functional domains as well as cooperation with other coactivators in PR transactivation. By analyzing wild-type and mutant SRC-1 with liganded PR in the chromatin transcription system in vitro, the basic helix-loop-helix/Per-Arnt-Sim domain, the p300-binding domain, and the carboxyl-terminal region (containing the PR-binding site) of SRC-1 were shown to be important for PR transactivation. Although in context of a synthetic promoter its histone acetyltransferase activity was nonessential for PR-mediated transcription, SRC-1 was observed to act synergistically with p300 to enhance PR transactivation from chromatin. Moreover, SRC-1 and p300 were found to function cooperatively to increase the efficiency of productive transcription initiation and reinitiation. Further analysis of synergism between SRC-1 and p300 revealed an obligatory "sequential" recruitment of SRC-1 and p300 to liganded PR. Efficient recruitment of p300 required the presence of SRC-1. In addition, functional analysis of SRC-2 and SRC-3 coactivators indicated that the SRC family modulated PR transactivation from chromatin by a similar mechanism.
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Affiliation(s)
- Z Liu
- Department of Molecular and Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
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46
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Tsai SY, Schluns KS, Le PT, McNulty JA. TGF-beta1 and IL-6 expression in rat pineal gland is regulated by norepinephrine and interleukin-1beta. Histol Histopathol 2001; 16:1135-41. [PMID: 11642733 DOI: 10.14670/hh-16.1135] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The pineal gland is part of the neuroendocrine system that modulates immune functions. Because the gland is outside the blood-brain barrier, it is accessible to direct feedback from circulating cytokines that affect the synthesis and secretion of melatonin. Recent studies have suggested that intrinsic immunoregulatory cytokines mediate these neuro-immune interactions under the control of sympathetic innervation to the pineal. This study focused on the expression of transforming growth factor-beta1 (TGF-beta1) and interleukin-6 (IL-6), two cytokines that have important regulatory functions on both neurons and immune cells. Northern blot RNA analysis showed that TGF-beta1, but not IL-6, was expressed in freshly dissected rat pineal glands from neonatal age (1-day-old) into adults. Immunocytochemistry for TGF-beta1 in adult glands revealed localization of this protein in astrocyte-like cells. The sympathetic neurotransmitter norepinephrine (NE) increased transcript levels for both TGF-beta1 and IL-6 in adult pineal organ cultures. The effect of NE on IL-6 expression was not found in dispersed cell cultures established from neonatal pineal glands. The immunoregulatory molecule interleukin-1beta (IL-1beta) up-regulated the expression of both IL-6 and TGF-beta1 in adult pineal organ cultures, but not in neonate pineal organ cultures. These findings suggest that TGF-beta1 and IL-6 have intrinsic regulatory roles in the pineal gland and that both neural and immune factors are important mechanisms of regulation.
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Affiliation(s)
- S Y Tsai
- Loyola University Medical Center, Stritch School of Medicine, Department of Cell Biology, Neurobiology and Anatomy, Maywood, IL, USA
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47
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Abstract
Investigations of the mechanisms involved in appropriate, developmentally regulated tissue-specific gene transcription have laid the foundations for transgenic and gene-therapy technologies directing specific induction or ablation of genes of interest in a tissue-restricted manner. This technology has further evolved to allow for temporal control of gene expression and ablation. Genes can now be switched on and off or be ablated by administering exogenous compounds. These technologies are based on the development of ligand-inducible transcription factors or recombinases that regulate gene expression or ablation by the administration of specific ligands and should lead to animal models that are better suited for investigating the molecular basis of human disease. This review describes the evolution, components and applications of systems that are currently being employed in transgenic and mutant-mouse technology for the conditional regulation of gene expression and ablation.
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Affiliation(s)
- F J DeMayo
- Dept of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA
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48
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Abstract
To analyse the effect of epilepsy an P300 event-related potentials we studied 27 patients with idiopathic generalized epilepsy (IGE), 13 patients with temporal lobe epilepsy (TLE) and 60 normal controls. The prolongation of P300 latencies was highly cor related with increasing age in controls but not epileptic patients. The age-corrected P300 latency used in this study was actual P300 latency-predicted P300 latency (predicted P300 (msec)=306.20+0.79 age, P=0.001, R2=0.32). By using ANOVA analysis, the age-corrected latencies of P300 were significantly longer in TLE patients (19.72+/-47.82 msec, mean+/-SD) than in IGE patients (10.97+/-36.97 msec) and controls (0.23+/-20.28 msec). Likewise, significantly prolonged P300 latencies were seen in the epileptic patients with a seizure frequency more than 400 times (37.21+/-47.50 msec). The multivariate-adjusted odds ratio for those who had TLE was 10.97 (95% CI=3.99 - 30.14 ) in the prolonged latencies of P300 compared with that of IGE patients. The odds ratio of longer latencies of P300 was 7.43 (95% CI=2.75 - 20.08) among those who had a high seizure frequency (> or =400 times) compared with those who had a low seizure frequency. No interaction between TLE and high frequency of attacks was found. The age at onset of seizure and duration of illness was not associated with P300 latency prolongation. From the above results, we might infer that the seizure type of TLE and a high frequency of seizure are two major independent precipitate factors for abnormal latencies of P300 in the epileptic patients.
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Affiliation(s)
- R C Chen
- Department of Neurology, National Taiwan University Hospital, Taipei, Taiwan
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49
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Chang HC, Tsai SY, Wu GJ, Lin YH, Chen RM, Chen TL. Effects of propofol on mitochondrial function and intracellular calcium shift in bovine aortic endothelial model. Acta Anaesthesiol Sin 2001; 39:115-22. [PMID: 11688101] [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: 02/22/2023]
Abstract
BACKGROUND Hypotension was commonly encountered in clinical practice during induction of anesthesia with propofol. The purpose of this study is to investigate the effect of propofol on mitochondrial membrane potential and morphology so as to infer its relation with intracellular calcium mobilization in bovine aortic endothelium. METHODS In this study, we used the cultured bovine aortic endothelial cells (Gm 7372a) to elucidate the impact of propofol upon the membrane potential and morphology of mitochondria in correlation with its effect on intracellular calcium shift. The intracellular calcium mobilization within the cells preincubated with or without propofol was evaluated using a fluorescent spectrophotometer (confocal microscope) after being treated with Fluo-3. The mobilization of intracellular calcium was demonstrated by the appearance of "hot spots" released from intracellular stores after the addition of an ionophore, ionomycin, to the incubation system. The membrane potential of mitochondria was measured by DiOC6 and the morphology of the mitochondria was evaluated by the treatment of TM Ros and compared with that by the treatment of the uncoupler, FCCP, as control. RESULTS The release of calcium "hot spots" from the intracellular stores (e.g. mitochondria) after the addition of ionomycin was visualized to decrease dramatically within the endothelial cells after preincubation with propofol. The membrane potential of mitochondria was significantly inhibited by pretreatment of propofol at 0.01 mM, 37 degrees C for 30 min. Morphologically, the integrity of mitochondria was distorted and fragmented in the presence of propofol as compared with that of control. CONCLUSIONS Our data showed that propofol in clinical concentration, 0.01 mM, could inhibit intracellular calcium shift from the intracellular stores and decrease the membrane potential and distort the morphology of mitochondria in bovine aortic endothelial cells. These inhibitions of the function and disfiguration of the morphology of mitochondria signify that the clinical hypotension induced by propofol might be of a potential mechanism.
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Affiliation(s)
- H C Chang
- Department of Anesthesiology, Taipei Medical University, Wan-Fang Hospital, No. 111, Sec. 3, Hsing-Lung Rd., Taipei, 116, Taiwan, R.O.C
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50
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Wang JL, Chen WL, Tsai SY, Sung PY, Huang RN. An in vitro model for evaluation of vaporous toxicity of trichloroethylene and tetrachloroethylene to CHO-K1 cells. Chem Biol Interact 2001; 137:139-54. [PMID: 11551530 DOI: 10.1016/s0009-2797(01)00226-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Toxicokinetics of trichloroethylene (TCE) and tetrachloroethylene (PER) in culture medium and their toxicity to CHO-K1 cells were investigated by employing an in vitro vapor exposure system. Cells were cultured in a 60 mm petri dish with a 25 mm glass dish glued in the central area. TCE or PER was added to the central glass dish so that it would evaporate and dissolve in the surrounding medium in which cells were growing. The results showed that the concentration of TCE or PER in medium increased significantly within 20 min and then decreased very rapidly with time. After a 24 h incubation, the residual of TCE or PER in the medium was very low, but was displayed in a dose-dependent manner. Treatment of cells with either TCE or PER resulted in a dose- and time-dependent inhibition of cell growth. A significantly increase in the frequency of micronuclei (MN) was also observed with either TCE or PER treatment. Low doses of TCE (5-20 microl) or PER (1-5 microl) significantly enhanced the intracellular glutathione (GSH) level. However, the level of GSH rapidly decreased with higher doses of TCE (40-80 microl) or PER (10-20 microl). Depletion of cellular GSH showed no effect on the sensitivity of cells to TCE or PER treatment. GSH-conjugation has been proposed as an activation mechanism to account for the nephrotoxicity of TCE and PER, however the toxicity of TCE and PER to CHO-K1 cells is probably mediated through a distinct mechanism.
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Affiliation(s)
- J L Wang
- Department of Chemistry, National Central University, Chung-li, 32054, Taoyuan, Taiwan, ROC
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