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Lu X, Song CY, Wang P, Li L, Lin LY, Jiang S, Zhou JN, Feng MX, Yang YM, Lu YQ. The clinical trajectory of peripheral blood immune cell subsets, T-cell activation, and cytokines in septic patients. Inflamm Res 2024; 73:145-155. [PMID: 38085279 DOI: 10.1007/s00011-023-01825-w] [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: 08/07/2023] [Revised: 11/15/2023] [Accepted: 11/19/2023] [Indexed: 01/10/2024] Open
Abstract
OBJECTIVE AND DESIGN Changes in the immune status of patients with sepsis may have a major impact on their prognosis. Our research focused on changes in various immune cell subsets and T-cell activation during the progression of sepsis. METHODS AND SUBJECTS We collected data from 188 sepsis patients at the First Affiliated Hospital of Zhejiang University School of Medicine. The main focus was on the patient's immunocyte subset typing, T-cell activation/Treg cell analysis, and cytokine assay, which can indicate the immune status of the patient. RESULTS The study found that the number of CD4+ T cells, CD8+ T cells, NK cells, and B cells decreased early in the disease, and the decrease in CD4+ and CD8+ T cells was more pronounced in the death group. T lymphocyte activation was inhibited, and the number of Treg cells increased as the disease progressed. T lymphocyte inhibition was more significant in the death group, and the increase in IL-10 was more significant in the death group. Finally, we used patients' baseline conditions and immunological detection indicators for modeling and found that IL-10, CD4+ Treg cells, CD3+HLA-DR+ T cells, and CD3+CD69+ T cells could predict patients' prognosis well. CONCLUSION Our study found that immunosuppression occurs in patients early in sepsis. Early monitoring of the patient's immune status may provide a timely warning of the disease.
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Affiliation(s)
- Xuan Lu
- Department of Geriatric and Emergency Medicine, School of Medicine, The First Affiliated Hospital, Zhejiang University, Hangzhou, 310003, Zhejiang, People's Republic of China
- Key Laboratory for Diagnosis and Treatment of Aging and Physic-Chemical Injury Diseases of Zhejiang Province, Hangzhou, 310003, Zhejiang, People's Republic of China
| | - Cong-Ying Song
- Department of Geriatric and Emergency Medicine, School of Medicine, The First Affiliated Hospital, Zhejiang University, Hangzhou, 310003, Zhejiang, People's Republic of China
- Key Laboratory for Diagnosis and Treatment of Aging and Physic-Chemical Injury Diseases of Zhejiang Province, Hangzhou, 310003, Zhejiang, People's Republic of China
| | - Ping Wang
- Department of Geriatric and Emergency Medicine, School of Medicine, The First Affiliated Hospital, Zhejiang University, Hangzhou, 310003, Zhejiang, People's Republic of China
- Key Laboratory for Diagnosis and Treatment of Aging and Physic-Chemical Injury Diseases of Zhejiang Province, Hangzhou, 310003, Zhejiang, People's Republic of China
| | - Li Li
- Department of Geriatric and Emergency Medicine, School of Medicine, The First Affiliated Hospital, Zhejiang University, Hangzhou, 310003, Zhejiang, People's Republic of China
- Key Laboratory for Diagnosis and Treatment of Aging and Physic-Chemical Injury Diseases of Zhejiang Province, Hangzhou, 310003, Zhejiang, People's Republic of China
| | - Li-Ying Lin
- Department of Geriatric and Emergency Medicine, School of Medicine, The First Affiliated Hospital, Zhejiang University, Hangzhou, 310003, Zhejiang, People's Republic of China
- Key Laboratory for Diagnosis and Treatment of Aging and Physic-Chemical Injury Diseases of Zhejiang Province, Hangzhou, 310003, Zhejiang, People's Republic of China
| | - Shuai Jiang
- Department of Geriatric and Emergency Medicine, School of Medicine, The First Affiliated Hospital, Zhejiang University, Hangzhou, 310003, Zhejiang, People's Republic of China
- Key Laboratory for Diagnosis and Treatment of Aging and Physic-Chemical Injury Diseases of Zhejiang Province, Hangzhou, 310003, Zhejiang, People's Republic of China
| | - Jia-Ning Zhou
- Department of Geriatric and Emergency Medicine, School of Medicine, The First Affiliated Hospital, Zhejiang University, Hangzhou, 310003, Zhejiang, People's Republic of China
- Key Laboratory for Diagnosis and Treatment of Aging and Physic-Chemical Injury Diseases of Zhejiang Province, Hangzhou, 310003, Zhejiang, People's Republic of China
| | - Meng-Xiao Feng
- Department of Geriatric and Emergency Medicine, School of Medicine, The First Affiliated Hospital, Zhejiang University, Hangzhou, 310003, Zhejiang, People's Republic of China
- Key Laboratory for Diagnosis and Treatment of Aging and Physic-Chemical Injury Diseases of Zhejiang Province, Hangzhou, 310003, Zhejiang, People's Republic of China
| | - Yun-Mei Yang
- Department of Geriatric and Emergency Medicine, School of Medicine, The First Affiliated Hospital, Zhejiang University, Hangzhou, 310003, Zhejiang, People's Republic of China
- Key Laboratory for Diagnosis and Treatment of Aging and Physic-Chemical Injury Diseases of Zhejiang Province, Hangzhou, 310003, Zhejiang, People's Republic of China
| | - Yuan-Qiang Lu
- Department of Geriatric and Emergency Medicine, School of Medicine, The First Affiliated Hospital, Zhejiang University, Hangzhou, 310003, Zhejiang, People's Republic of China.
- Key Laboratory for Diagnosis and Treatment of Aging and Physic-Chemical Injury Diseases of Zhejiang Province, Hangzhou, 310003, Zhejiang, People's Republic of China.
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Wang P, Lin LY, Lu YQ. Mid-to-late stage diquat accumulation in the central nervous system: A severe case of oral poisoning. Am J Emerg Med 2024; 75:198.e1-198.e5. [PMID: 37925304 DOI: 10.1016/j.ajem.2023.10.005] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 09/20/2023] [Accepted: 10/03/2023] [Indexed: 11/06/2023] Open
Abstract
A 54-year-old woman in good health was admitted to our hospital with diquat poisoning. The patient drank an unknown dose of diquat, and acute kidney injury developed early. However, there were no obvious pulmonary abnormalities and no signs of central nervous system toxicity in the early stage. The woman underwent active treatment, which resulted in a significant decrease in blood diquat levels, but her lung condition progressively worsened and neurological symptoms developed. Fortunately, the patient survived after intensive hemoperfusion combined with continuous renal replacement therapy (CRRT), intracranial pressure reduction, and anti-infective treatment. This case report highlights the importance of being aware of the development of delayed pulmonary symptoms and neurologic complications when caring for patients poisoned with diquat, even in those with low diquat blood concentrations. Interestingly, we also detected the concentration of diquat in the cerebrospinal fluid (CSF) of patients with diquat poisoning, and found that the rate of decrease of diquat concentration in the CSF was considerably slower than that in the blood.Notably, a specific correlation was observed between the concentration of diquat in the CSF, rather than in the blood, and both the intracranial pressure (ICP) and the severity of cerebral edema in this patient.
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Affiliation(s)
- Ping Wang
- Department of Emergency Medicine, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, Zhejiang, China; Key Laboratory for Diagnosis and Treatment of Aging and Physic-chemical Injury Diseases of Zhejiang Province, Hangzhou, China
| | - Li-Ying Lin
- Department of Emergency Medicine, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, Zhejiang, China; Key Laboratory for Diagnosis and Treatment of Aging and Physic-chemical Injury Diseases of Zhejiang Province, Hangzhou, China
| | - Yuan-Qiang Lu
- Department of Emergency Medicine, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, Zhejiang, China; Key Laboratory for Diagnosis and Treatment of Aging and Physic-chemical Injury Diseases of Zhejiang Province, Hangzhou, China.
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Zhang K, Zhang L, Li WC, Xie SS, Cui YZ, Lin LY, Shen ZW, Zhang HM, Xia S, Ye ZX, He K, Shen W. Radiomics nomogram for the prediction of microvascular invasion of HCC and patients' benefit from postoperative adjuvant TACE: a multi-center study. Eur Radiol 2023; 33:8936-8947. [PMID: 37368104 DOI: 10.1007/s00330-023-09824-5] [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: 09/12/2022] [Revised: 03/15/2023] [Accepted: 03/26/2023] [Indexed: 06/28/2023]
Abstract
OBJECTIVES To evaluate the performance of a radiomics nomogram developed based on gadolinium-ethoxybenzyl-diethylenetriamine penta-acetic acid (Gd-EOB-DTPA) MRI for preoperative prediction of microvascular invasion (MVI) of hepatocellular carcinoma (HCC), and to identify patients who may benefit from the postoperative adjuvant transarterial chemoembolization (PA-TACE). METHODS A total of 260 eligible patients were retrospectively enrolled from three hospitals (140, 65, and 55 in training, standardized external, and non-standardized external validation cohort). Radiomics features and image characteristics were extracted from Gd-EOB-DTPA MRI image before hepatectomy for each lesion. In the training cohort, a radiomics nomogram which incorporated the radiomics signature and radiological predictors was developed. The performance of the radiomics nomogram was assessed with respect to discrimination calibration, and clinical usefulness with external validation. A score (m-score) was constructed to stratify the patients and explored whether it could accurately predict patient who benefit from PA-TACE. RESULTS A radiomics nomogram integrated with the radiomics signature, max-D(iameter) > 5.1 cm, peritumoral low intensity (PTLI), incomplete capsule, and irregular morphology had favorable discrimination in the training cohort (AUC = 0.982), the standardized external validation cohort (AUC = 0.969), and the non-standardized external validation cohort (AUC = 0.981). Decision curve analysis confirmed the clinical usefulness of the novel radiomics nomogram. The log-rank test revealed that PA-TACE significantly decreased the early recurrence in the high-risk group (p = 0.006) with no significant effect in the low-risk group (p = 0.270). CONCLUSIONS The novel radiomics nomogram combining the radiomics signature and clinical radiological features achieved preoperative non-invasive MVI risk prediction and patient benefit assessment after PA-TACE, which may help clinicians implement more appropriate interventions. CLINICAL RELEVANCE STATEMENT Our radiomics nomogram could represent a novel biomarker to identify patients who may benefit from the postoperative adjuvant transarterial chemoembolization, which may help clinicians to implement more appropriate interventions and perform individualized precision therapies. KEY POINTS • The novel radiomics nomogram developed based on Gd-EOB-DTPA MRI achieved preoperative non-invasive MVI risk prediction. • An m-score based on the radiomics nomogram could stratify HCC patients and further identify individuals who may benefit from the PA-TACE. • The radiomics nomogram could help clinicians to implement more appropriate interventions and perform individualized precision therapies.
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Affiliation(s)
- Kun Zhang
- Department of Radiology, Medical Imaging Institute of Tianjin, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, 300192, China
| | - Lei Zhang
- Department of Radiology, The First Hospital of Jilin University, No. 71 Xinmin Street, Changchun, 130012, China
| | - Wen-Cui Li
- Department of Radiology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
- Tianjin's Clinical Research Center for Cancer, Tianjin, 300060, China
| | - Shuang-Shuang Xie
- Department of Radiology, Tianjin First Central Hospital, Tianjin Institute of Imaging Medicine, 24 Fukang Road, Nankai District, Tianjin, 300192, China
| | - Ying-Zhu Cui
- Department of Radiology, The First Hospital of Jilin University, No. 71 Xinmin Street, Changchun, 130012, China
| | - Li-Ying Lin
- Department of Radiology, Tianjin First Central Hospital, Tianjin Institute of Imaging Medicine, 24 Fukang Road, Nankai District, Tianjin, 300192, China
| | - Zhi-Wei Shen
- Philips Healthcare, Beijing, The World Profit Centre, No. 16 Tianze Road, Chaoyang District, Beijing, 100125, China
| | - Hui-Mao Zhang
- Department of Radiology, The First Hospital of Jilin University, No. 71 Xinmin Street, Changchun, 130012, China
| | - Shuang Xia
- Department of Radiology, Medical Imaging Institute of Tianjin, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, 300192, China
| | - Zhao-Xiang Ye
- Department of Radiology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.
- Tianjin's Clinical Research Center for Cancer, Tianjin, 300060, China.
| | - Kan He
- Department of Radiology, The First Hospital of Jilin University, No. 71 Xinmin Street, Changchun, 130012, China.
| | - Wen Shen
- Department of Radiology, Tianjin First Central Hospital, Tianjin Institute of Imaging Medicine, 24 Fukang Road, Nankai District, Tianjin, 300192, China.
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Zhang X, Liu H, Lin L, Xiao H. Effects of Psycho-education Interventions on Colorectal Cancer Patients: A systematic review and meta-analysis. J Cancer Educ 2023; 38:1413-1419. [PMID: 37620689 DOI: 10.1007/s13187-023-02349-x] [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] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/26/2023] [Indexed: 08/26/2023]
Abstract
Colorectal cancer (CRC) patients not only undergo physical symptoms but also psychological suffering. Psycho-education interventions have been implemented widely to improve their psychological well-being. However, the effectiveness of psycho-education is unclear. Therefore, this research evaluates the effectiveness of psycho-education interventions on CRC patient outcomes and identifies effective intervention characteristics. The researchers searched the following databases: PubMed, Embase, PsycINFO, Cochrane, Medline, Web of Science, CINAHL, ProQuest, Wan Fang Data, Chinese National Knowledge Infrastructure, Chinese Biomedicine Database, and China Academic Journals Full-Text Database. Additionally, gray literature and bibliographies of the included studies were also searched. Finally, this review included 11 randomized controlled trials and one controlled clinical trial. The results showed that psycho-education interventions exerted positive impacts on relieving anxiety and depression, improving self-efficacy and quality of life for CRC patients either immediately, post-intervention, or at least 2 months after intervention. Despite the variety of psycho-education interventions, health education, stress management, coping skills training, and social support are also essential components. Future research should include multi-center studies with sufficient sample sizes and rigorous designs.
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Affiliation(s)
- XiaoYing Zhang
- School of Nursing, Fujian Medical University, Fuzhou, China
| | - HuangQin Liu
- School of Nursing, Fujian Medical University, Fuzhou, China
| | - LiYing Lin
- School of Nursing, Fujian Medical University, Fuzhou, China
| | - Huimin Xiao
- School of Nursing, Fujian Medical University, Fuzhou, China.
- Research Center for Nursing Humanity, Fujian Medical University, Fuzhou, China.
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Liu CH, Lin CY, Huang BS, Wei YC, Chang TY, Yeh CH, Sung PS, Jiang JL, Lin LY, Chang JTC, Fan KH. Risk of temporal lobe necrosis between proton beam and volumetric modulated arc therapies in patients with different head and neck cancers. Radiat Oncol 2023; 18:155. [PMID: 37735389 PMCID: PMC10512503 DOI: 10.1186/s13014-023-02344-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: 07/18/2023] [Accepted: 09/05/2023] [Indexed: 09/23/2023] Open
Abstract
BACKGROUND To investigate the frequency of temporal lobe necrosis (TLN) soon after radiotherapy (RT) and identify differences among patients with various types of head and neck cancer (HNC) and between different RT methods. METHODS We retrospectively reviewed 483 patients with HNC who had completed RT in our hospital after January, 2015. These patients were followed-up at the radio-oncology department and received contrast-enhanced magnetic resonance imaging (MRI) or computed tomography (CT) to identify metastases or recurrence of cancer at regular intervals. Meanwhile, the occurrence of TLN, graded according to the Common Terminology Criteria for Adverse Events V5.0, was recorded. We categorized the patients into nasopharyngeal carcinoma (NPC) and non-NPC groups and compared the cumulative occurrence of TLN between the groups using Kaplan-Meier and Cox regression analyses. We further compared the cumulative occurrence of TLN between proton beam therapy (PBT) and volumetric modulated arc therapy (VMAT) in patients with any HNC, NPC, and non-NPC HNC. RESULTS Compared with the non-NPC group, the NPC group had a higher frequency of TLN (5.6% vs. 0.4%, p < 0.01) and were more commonly associated with TLN in the Kaplan-Meier analysis (p < 0.01) and the Cox regression model after covariates were adjusted for (adjusted hazard ratio: 13.35, 95% confidence interval: 1.37-130.61) during the follow-up period. Furthermore, the frequency of TLN was similar between patients receiving PBT and those receiving VMAT (PBT vs. VMAT: 4.7% vs. 6.3%, p = 0.76). Kaplan-Meier analysis revealed that the accumulated risks of TLN were similar between PBT and VMAT in patients with any HNC (p = 0.44), NPC (p = 0.84), and non-NPC HNC (p = 0.70). CONCLUSION Our study demonstrated that patients with NPC are susceptible to TLN during the early period after RT. In addition, PBT may be associated with an equivalent risk of TLN when compared with VMAT in patients with NPC or other HNCs.
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Affiliation(s)
- Chi-Hung Liu
- Stroke Center, Department of Neurology, Linkou Medical Center, Chang Gung Memorial Hospital, Taoyüan, Taiwan
- School of Medicine, College of Medicine, Chang Gung University, Taoyüan, Taiwan
- Institute of Health Policy and Management, College of Public Health, National Taiwan University, Taipei, Taiwan
| | - Chien-Yu Lin
- School of Medicine, College of Medicine, Chang Gung University, Taoyüan, Taiwan
- Department of Radiation Oncology, Proton and Radiation Therapy Center, Chang Gung Medical Foundation, Linkou Chang Gung Memorial Hospital, Taoyüan, Taiwan
- Taipei Chang Gung Head and Neck Oncology Group, Chang Gung Memorial Hospital Linkou Medical Center, Taoyüan, Taiwan
- Particle Physics and Beam Delivery Core Laboratory of Institute for Radiological Research, Linkou Medical Center, Chang Gung University/Chang Gung Memorial Hospital, Taoyüan, Taiwan
| | - Bing-Shen Huang
- School of Medicine, College of Medicine, Chang Gung University, Taoyüan, Taiwan
- Department of Radiation Oncology, Proton and Radiation Therapy Center, Chang Gung Medical Foundation, Linkou Chang Gung Memorial Hospital, Taoyüan, Taiwan
| | - Yi-Chia Wei
- Department of Neurology, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan
- Community Medicine Research Center, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Ting-Yu Chang
- Stroke Center, Department of Neurology, Linkou Medical Center, Chang Gung Memorial Hospital, Taoyüan, Taiwan
- School of Medicine, College of Medicine, Chang Gung University, Taoyüan, Taiwan
| | - Chih-Hua Yeh
- School of Medicine, College of Medicine, Chang Gung University, Taoyüan, Taiwan
- Department of Neuroradiology, Linkou Medical Center, Chang Gung Memorial Hospital, Taoyüan, Taiwan
| | - Pi-Shan Sung
- Department of Neurology, College of Medicine, National Cheng Kung University Hospital, National Cheng Kung University, Tainan, Taiwan
| | - Jian-Lin Jiang
- Stroke Center, Department of Neurology, Linkou Medical Center, Chang Gung Memorial Hospital, Taoyüan, Taiwan
| | - Li-Ying Lin
- School of Medicine, College of Medicine, Chang Gung University, Taoyüan, Taiwan
| | - Joseph Tung-Chieh Chang
- School of Medicine, College of Medicine, Chang Gung University, Taoyüan, Taiwan.
- Department of Radiation Oncology, Proton and Radiation Therapy Center, Chang Gung Medical Foundation, Linkou Chang Gung Memorial Hospital, Taoyüan, Taiwan.
- Taipei Chang Gung Head and Neck Oncology Group, Chang Gung Memorial Hospital Linkou Medical Center, Taoyüan, Taiwan.
| | - Kang-Hsing Fan
- School of Medicine, College of Medicine, Chang Gung University, Taoyüan, Taiwan.
- Department of Radiation Oncology, Proton and Radiation Therapy Center, Chang Gung Medical Foundation, Linkou Chang Gung Memorial Hospital, Taoyüan, Taiwan.
- Taipei Chang Gung Head and Neck Oncology Group, Chang Gung Memorial Hospital Linkou Medical Center, Taoyüan, Taiwan.
- Department of Radiation Oncology, New Taipei Municipal Tu-Cheng Hospital, New Taipei City, Taiwan.
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Zhang K, Li WC, Xie SS, Lin LY, Shen ZW, Ye ZX, Shen W. Preoperative determination of pathological grades of primary single HCC: development and validation of a scoring model. Abdom Radiol (NY) 2022; 47:3468-3477. [PMID: 35842888 DOI: 10.1007/s00261-022-03606-1] [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] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 06/24/2022] [Accepted: 06/24/2022] [Indexed: 01/18/2023]
Abstract
PURPOSE This study aimed to establish a reliable diagnostic score model for the preoperative determination of pathological grade in HCC based on gadolinium-ethoxybenzyl-diethylenetriamine pentaacetic acid (Gd-EOB-DTPA) enhanced MRI and biochemical indicators. METHODS In this retrospective study, we analyzed 139 patients with HCC who underwent Gd-EOB-DTPA MRI between 2014 and 2020, including an establishment cohort of 76 patients and a validation cohort of 63 patients. Based on the imaging features demonstrated on Gd-EOB-DTPA MRI images and biochemical indicators of the establishment cohort, a scoring model based on logistic regression was developed, and compared with postoperative pathological findings in terms of effective determination of pathological grade. The validity of the scoring model was assessed by ROC curves and an independent external validation cohort. RESULTS Three parameters related to pathological grades were identified, including maximum diameter of the tumor, peritumoral hypointensity in the hepatobiliary phase, and [alkaline phosphatase (U/L) + gamma glutamyl transpeptidase (U/L)]/ lymphocyte count (× 109/L) (AGLR) ratios. Based on these three parameters, a scoring model was developed. ROC curve showed that a score of > 5 was set as the threshold for determining pathological grades with accuracy, sensitivity, specificity, PPV, and NPV of 89.5%, 75.0%, 95.1%, 85.7%, and 90.7%, respectively. CONCLUSION The study provided the groundwork for a promising and easily implementable scoring model for preoperative determination of HCC pathological grades, for which further validation should be pursued.
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Affiliation(s)
- Kun Zhang
- Department of Radiology, Tianjin First Central Hospital, funded by Tianjin Key Medical Discipline (Specialty) Construction Project, Tianjin Institute of imaging medicine, 24 Fukang Road, Nankai District, Tianjin, 300192, China
| | - Wen-Cui Li
- Department of Radiology, Liver Cancer Center, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300060, China.,Tianjin's Clinical Research Center for Cancer, Tianjin, 300060, China
| | - Shuang-Shuang Xie
- Department of Radiology, Tianjin First Central Hospital, funded by Tianjin Key Medical Discipline (Specialty) Construction Project, Tianjin Institute of imaging medicine, 24 Fukang Road, Nankai District, Tianjin, 300192, China
| | - Li-Ying Lin
- First Central Clinical College, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, 300070, China
| | - Zhi-Wei Shen
- Philips Healthcare, Beijing, The world profit centre, No. 16 Tianze Road, Chaoyang Dustrict, Beijing, 100125, China
| | - Zhao-Xiang Ye
- Department of Radiology, Liver Cancer Center, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300060, China. .,Tianjin's Clinical Research Center for Cancer, Tianjin, 300060, China.
| | - Wen Shen
- Department of Radiology, Tianjin First Central Hospital, funded by Tianjin Key Medical Discipline (Specialty) Construction Project, Tianjin Institute of imaging medicine, 24 Fukang Road, Nankai District, Tianjin, 300192, China.
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Tai JF, Yang TL, Juang WC, Lin LY. Effects of an Intranet-Based Call-for-Help System on Teamwork, Work Efficiency, Job Satisfaction, and Job Stress in Nurses. J Patient Saf 2022; 18:e1004-e1009. [PMID: 35532975 DOI: 10.1097/pts.0000000000001029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
OBJECTIVES In the medical environment, teamwork among medical care personnel is closely related to patient safety and care quality. This research has developed an Intranet-based call-for-help system to establish an emergency support system. Few studies have explored the effects of the timely call-for-help system on teamwork. This study explored the effects of the timely call-for-help system intervention. METHODS This study was designed by 2 groups of pretest and posttest. This research was conducted at a medical center in Taiwan. The subjects of the study were nurses in inpatient wards. The newly established call-for-help system was used in the 4 experimental wards, enabling nurses to immediately seek help from each other when faced with challenges and difficulties. This study was blind with the outcome evaluator and data analyst blinded to the group of participants. RESULTS A total of 165 nurses were included in the study, 84 in the intervention group and 81 in the control group. After the intervention of the call-for-help system, the experimental group had significantly better teamwork, work efficiency, job satisfaction, and lower job stress than the control group ( P < 0.01). The generalized estimating equation showed that the progress scores of the experimental group on the 4 scales were significantly higher than those of the control group ( P < 0.01). CONCLUSIONS The implementation of timely call-for-help system can enable nursing staff to get immediate support, strengthen teamwork, create a positive nursing practice environment, and improve patient safety and quality of care. These improvements in teamwork and support are very important and worthy of promotion.
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Affiliation(s)
| | - Tsung-Lung Yang
- Quality Management Center, Kaohsiung Veterans General Hospital
| | - Wang-Chuan Juang
- Quality Management Center, Department of Business Management, National Sun Yat-sen University, Kaohsiung
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Lin LY, Tong YL, Lu YQ. The characteristics of liver injury induced by Amanita and clinical value of α-amanitin detection. Hepatobiliary Pancreat Dis Int 2022; 21:257-266. [PMID: 35168873 DOI: 10.1016/j.hbpd.2022.01.007] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 12/17/2021] [Indexed: 02/05/2023]
Abstract
BACKGROUND Amanita poisoning as a foodborne disease has raised concerning mortality issues. Reducing the interval between mushroom ingestion and medical intervention could greatly influence the outcomes of Amanita poisoning patients, while treatment is highly dependent on a confirmed diagnosis. To this end, we developed an early detection-guided intervention strategy by optimizing diagnostic process with performing α-amanitin detection, and further explored whether this strategy influenced the progression of Amanita poisoning. METHODS This study was a retrospective analysis of 25 Amanita poisoning patients. Thirteen patients in the detection group were diagnosed mainly based on α-amanitin detection, and 12 patients were diagnosed essentially on the basis of mushroom consumption history, typical clinical patterns and mushroom identification (conventional group). Amanita poisoning patients received uniform therapy, in which plasmapheresis was executed once confirming the diagnosis of Amanita poisoning. We compared the demographic baseline, clinical and laboratory data, treatment and outcomes between the two groups, and further explored the predictive value of α-amanitin concentration in serum. RESULTS Liver injury induced by Amanita appeared worst at the fourth day and alanine aminotransferase (ALT) rose higher than aspartate aminotransferase (AST). The mortality rate was 7.7% (1/13) in the detection group and 50.0% (6/12) in the conventional group (P = 0.030), since patients in the detection group arrived hospital much earlier and received plasmapheresis at the early stage of disease. The early detection-guided intervention helped alleviate liver impairment caused by Amanita and decreased the peak AST as well as ALT. However, the predictive value of α-amanitin concentration in serum was still considered limited. CONCLUSIONS In the management of mushroom poisoning, consideration should be given to the rapid detection of α-amanitin in suspected Amanita poisoning patients and the immediate initiation of medical treatment upon a positive toxin screening result.
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Affiliation(s)
- Li-Ying Lin
- Department of Emergency Medicine, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Ya-Ling Tong
- Department of Emergency Medicine, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Yuan-Qiang Lu
- Department of Emergency Medicine, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; The Key Laboratory for Diagnosis and Treatment of Aging and Physic-chemical Injury Diseases of Zhejiang Province, Hangzhou 310003, China.
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Tai JF, Wang C, Lin LY, Tang PL. [Validity and Reliability of a Nursing Process Scale]. Hu Li Za Zhi 2022; 69:31-40. [PMID: 35644595 DOI: 10.6224/jn.202206_69(3).06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
BACKGROUND A valid and reliable nursing record audit tool can simplify nursing records and provide a basis for quality auditing. PURPOSE To ensure the validity and reliability of the Nursing Process Scale to promote accurate monitoring of nursing record quality. METHODS This study employed structural equation modeling to examine the content validity and reliability of the current Nursing Process Scale. A total of 660 results from a medical center were used to revise the content and then the validity and reliability of the revised scale were analyzed. Exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) were used in three stages, namely item generation and content validity testing, item analysis and validity testing, and reliability testing. RESULTS Validity, reliability, and organization based on clinical practice were used to identify and remove scale items with low factor loadings. The remaining items were organized under several factors in the revised Nursing Process Scale, which had good internal consistency with a Cronbach's α of .653 in the EFA, a Kaiser-Meyer-Olkin value of .614, and a significant Bartlett's test of sphericity value. Five factors and 22 questions were extracted from the original 32 questions. The CFA conducted after the model correction reduced the number of questions to 10 and the number of factors to 3, with each index reaching the ideal level. To improve ease-of-use in clinical settings, the important items were reduced from 32 to 22 questions, including the 10 questions suggested by the CFA. CONCLUSIONS The validity, reliability, and organization based on clinical practice were considered in the removal of items with low factor loadings. Axial conversion was used to generate a component matrix, which allowed item rearrangement across factors and the revision of the Nursing Process Scale. The development of simple valid and reliable audit tools will save auditor time and allow the effective evaluation of nursing record quality and improvement in record integrity. This revised scale was reviewed and approved for implementation in 42 clinical wards.
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Affiliation(s)
- Jui-Fen Tai
- MS, RN, Head Nurse, Department of Nursing, Kaohsiung Veterans General Hospital, Taiwan, ROC
| | - Chi Wang
- MSN, RN, Director, Department of Nursing, Kaohsiung Veterans General Hospital, Taiwan, ROC
| | - Li-Ying Lin
- PhD, RN, Supervisor, Department of Nursing, Kaohsiung Veterans General Hospital, Taiwan, ROC
| | - Pei-Ling Tang
- PhD, RN, Assistant Professor, Research Center of Medical Informatics, Kaohsiung Veterans General Hospital, Taiwan, ROC.
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10
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Smalley JP, Baker IM, Pytel WA, Lin LY, Bowman KJ, Schwabe JWR, Cowley SM, Hodgkinson JT. Optimization of Class I Histone Deacetylase PROTACs Reveals that HDAC1/2 Degradation is Critical to Induce Apoptosis and Cell Arrest in Cancer Cells. J Med Chem 2022; 65:5642-5659. [PMID: 35293758 PMCID: PMC9014412 DOI: 10.1021/acs.jmedchem.1c02179] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Class I histone deacetylase (HDAC) enzymes 1, 2, and 3 organize chromatin as the catalytic subunits within seven distinct multiprotein corepressor complexes and are established drug targets. We report optimization studies of benzamide-based Von Hippel-Lindau (VHL) E3-ligase proteolysis targeting chimeras (PROTACs) and for the first time describe transcriptome perturbations resulting from these degraders. By modifying the linker and VHL ligand, we identified PROTACs 7, 9, and 22 with submicromolar DC50 values for HDAC1 and/or HDAC3 in HCT116 cells. A hook effect was observed for HDAC3 that could be negated by modifying the position of attachment of the VHL ligand to the linker. The more potent HDAC1/2 degraders correlated with greater total differentially expressed genes and enhanced apoptosis in HCT116 cells. We demonstrate that HDAC1/2 degradation by PROTACs correlates with enhanced global gene expression and apoptosis, important for the development of more efficacious HDAC therapeutics with reduced side effects.
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Affiliation(s)
- Joshua P Smalley
- Leicester Institute of Structural and Chemical Biology, School of Chemistry, University of Leicester, Leicester LE1 7RH, U.K
| | - India M Baker
- Department of Molecular and Cell Biology, University of Leicester, Leicester LE1 7RH, U.K
| | - Wiktoria A Pytel
- Leicester Institute of Structural and Chemical Biology, School of Chemistry, University of Leicester, Leicester LE1 7RH, U.K
| | - Li-Ying Lin
- Leicester Institute of Structural and Chemical Biology, Department of Molecular and Cell Biology, University of Leicester, Leicester LE1 7RH, U.K
| | - Karen J Bowman
- Department of Molecular and Cell Biology, University of Leicester, Leicester LE1 7RH, U.K
| | - John W R Schwabe
- Leicester Institute of Structural and Chemical Biology, Department of Molecular and Cell Biology, University of Leicester, Leicester LE1 7RH, U.K
| | - Shaun M Cowley
- Department of Molecular and Cell Biology, University of Leicester, Leicester LE1 7RH, U.K
| | - James T Hodgkinson
- Leicester Institute of Structural and Chemical Biology, School of Chemistry, University of Leicester, Leicester LE1 7RH, U.K
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11
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Lee HH, Lin LY, Yang HF, Tang YY, Wang PH. Application of an Automatic Medical Information System to Implement Bundle Care for the Prevention of Ventilator-Associated Pneumonia. Int J Environ Res Public Health 2021; 18:ijerph182111128. [PMID: 34769646 PMCID: PMC8582805 DOI: 10.3390/ijerph182111128] [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] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 10/18/2021] [Accepted: 10/19/2021] [Indexed: 11/16/2022]
Abstract
Ventilator-associated pneumonia is a common hospital-acquired infection. It causes patients to stay longer in the hospital and increases medical costs. This study explores the effect of applying an automatic medical information system to implement five-item prevention care bundles on the prevention of ventilator-related pneumonia. This study was a retrospective cohort study. This study was conducted from October 2017 to February 2018 and collected data from the intensive care unit of a medical center in southern Taiwan from January 2013 to May 2016. The control group (enrolled from January 2013 to June 2014) received oral hygiene. The experimental group (enrolled from July 2014 to December 2015) received five-item ventilator-associated pneumonia prevention care bundles, which consisted of (1) elevation of the head of the bed to 30–45°; (2) daily oral care with 0.12−0.2% chlorhexidine twice daily; (3) daily assessment of readiness to extubate; (4) daily sedative interruption; and (5) emptying water from the respirator tube. Results showed the incidence of ventilator-associated pneumonia in the bundle group was significantly less than the oral hygiene group (p = 0.029). The factors that significantly affected the incidence of ventilator-associated pneumonia were ventilator-associated pneumonia care bundle, ventilator-days, and intensive care unit length of stay. A significant reduction in ventilator-associated pneumonia rate in the bundle group compared to the oral hygiene group (OR = 0.366, 95% CI = 0.159–0.840) was observed, with 63.4% effectiveness. Application of an automatic medical information system to implement bundle care can significantly reduce the incidence of ventilator-associated pneumonia.
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Affiliation(s)
- Hung-Hui Lee
- Department of Nursing, Kaohsiung Veterans General Hospital, Kaohsiung City 813414, Taiwan; (H.-H.L.); (H.-F.Y.); (Y.-Y.T.); (P.-H.W.)
| | - Li-Ying Lin
- Department of Nursing, Kaohsiung Veterans General Hospital, Kaohsiung City 813414, Taiwan; (H.-H.L.); (H.-F.Y.); (Y.-Y.T.); (P.-H.W.)
- Department of Nursing, Meiho University, Neipu, Pingtung 91202, Taiwan
- Correspondence: ; Tel.: +886-7-3422121
| | - Hsiu-Fen Yang
- Department of Nursing, Kaohsiung Veterans General Hospital, Kaohsiung City 813414, Taiwan; (H.-H.L.); (H.-F.Y.); (Y.-Y.T.); (P.-H.W.)
| | - Yu-Yi Tang
- Department of Nursing, Kaohsiung Veterans General Hospital, Kaohsiung City 813414, Taiwan; (H.-H.L.); (H.-F.Y.); (Y.-Y.T.); (P.-H.W.)
| | - Pei-Hern Wang
- Department of Nursing, Kaohsiung Veterans General Hospital, Kaohsiung City 813414, Taiwan; (H.-H.L.); (H.-F.Y.); (Y.-Y.T.); (P.-H.W.)
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12
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Abstract
Pain is a common health problem for hospitalized patients. It is necessary to understand the factors that affect patients' pain to provide individual and complete pain management. This study explored the severity and incidence of pain in hospitalized patients on the admission day, during the hospitalization, and the discharge day, and explored the predictive factors that affect the patient's pain on the discharge day.This was a retrospective study that reviewed the medical records of 73,814 hospitalized patients from January 2016 to April 2018. The number of pain assessments was 471,339.The incidence of pain on the discharge day of patients was significantly higher than that on the admission day. The factors that affect and predict the pain of patients on discharge day include the degree of pain on the day of admission, emotional distress on the day of discharge, disease category, gender, age, and length of stay in hospital. It shows that the higher the degree of pain on the day of admission, the higher the degree of emotional distress on the day of discharge, female patients, younger patients, longer hospitalization days, and surgical and gynecological patients have significantly higher pain levels on the day of discharge (P < .05).This study found that the incidence of pain on the discharge day of patients was 46.5%. Previous pain level, disease category, emotional distress, gender, age, and length of hospital stay were important factors affecting patient pain on the discharge day. The influencing factors of patient pain should be fully assessed to provide individual and complete pain management, and improve patient quality of life after discharge.
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Affiliation(s)
- Li-Ying Lin
- Department of Nursing, Kaohsiung Veterans General Hospital, Kaohsiung City, Taiwan
- Department of Nursing, Meiho University, Pingtung County, Taiwan
| | - Tzu-Ching Hung
- Department of Nursing, Kaohsiung Veterans General Hospital, Kaohsiung City, Taiwan
| | - Yen-Ho Lai
- Department of Nursing, Kaohsiung Veterans General Hospital, Kaohsiung City, Taiwan
- National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan
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13
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Ruan WS, Feng MX, Xu J, Xu YG, Song CY, Lin LY, Li L, Lu YQ. Early Activation of Myeloid-Derived Suppressor Cells Participate in Sepsis-Induced Immune Suppression via PD-L1/PD-1 Axis. Front Immunol 2020; 11:1299. [PMID: 32719675 PMCID: PMC7347749 DOI: 10.3389/fimmu.2020.01299] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [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: 02/01/2020] [Accepted: 05/22/2020] [Indexed: 12/29/2022] Open
Abstract
Background: Myeloid derived suppressor cells (MDSCs) have been reported to keep elevating during sepsis. The current study was performed to investigate the immunosuppressive effect of MDSCs and their subsets with the underlying mechanisms. Methods: The immunosuppressive status was manifested by the apoptosis of splenocytes, quantity of T cells and PD-1 expression. The dynamics of quantity and PD-L1 level of MDSCs and the subsets were determined over time. The subset of MDSCs with high PD-L1 level was co-cultured with T cells to observe the suppressive effect. Results: Abdominal abscess was observed after 7 days post-sepsis. Five biomarkers related to organ functions were all significantly higher in the CLP group. The survival rate was consistent with the middle grade severity of sepsis model. Apoptosis of splenocytes increased over time during sepsis; CD4 + T cell decreased from day 1 post-sepsis; CD8+ T cells significantly reduced at day 7. The PD-1 expression in spleen was upregulated from an early stage of sepsis, and negatively related with the quantity of T cells. MDSCs were low at day 1 post-sepsis, but increased to a high level later; the dynamics of PMN-MDSC was similar to MDSCs. PD-L1 on MDSCs was highest at day 1 post-sepsis; PMN-MDSC was the main subset expressing PD-L1. The PMN-MDSC with high PD-L1 expression level extracted on day 1 after surgery from CLP mice significantly inhibited the proliferation of T cells. Conclusions: Sepsis-induced immunosuppression is initiated from a very early stage, a high expression level of PD-L1 on MDSCs and the main subset, PMN-MDSC might play a critical role suppressive role on T cells through PD-L1/PD-1 axis.
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Affiliation(s)
- Wei-Shuyi Ruan
- Department of Emergency Medicine, School of Medicine, The First Affiliated Hospital, Zhejiang University, Hangzhou, China.,Department of Geriatrics, School of Medicine, The First Affiliated Hospital, Zhejiang University, Hangzhou, China.,Zhejiang Provincial Key Laboratory for Diagnosis and Treatment of Aging and Physic-Chemical Injury Diseases, Hangzhou, China
| | - Meng-Xiao Feng
- Department of Emergency Medicine, School of Medicine, The First Affiliated Hospital, Zhejiang University, Hangzhou, China.,Department of Geriatrics, School of Medicine, The First Affiliated Hospital, Zhejiang University, Hangzhou, China.,Zhejiang Provincial Key Laboratory for Diagnosis and Treatment of Aging and Physic-Chemical Injury Diseases, Hangzhou, China
| | - Jia Xu
- Department of Emergency Medicine, School of Medicine, The First Affiliated Hospital, Zhejiang University, Hangzhou, China.,Department of Geriatrics, School of Medicine, The First Affiliated Hospital, Zhejiang University, Hangzhou, China.,Zhejiang Provincial Key Laboratory for Diagnosis and Treatment of Aging and Physic-Chemical Injury Diseases, Hangzhou, China
| | - Ying-Ge Xu
- Department of Emergency Medicine, School of Medicine, The First Affiliated Hospital, Zhejiang University, Hangzhou, China.,Department of Geriatrics, School of Medicine, The First Affiliated Hospital, Zhejiang University, Hangzhou, China.,Zhejiang Provincial Key Laboratory for Diagnosis and Treatment of Aging and Physic-Chemical Injury Diseases, Hangzhou, China
| | - Cong-Ying Song
- Department of Emergency Medicine, School of Medicine, The First Affiliated Hospital, Zhejiang University, Hangzhou, China.,Department of Geriatrics, School of Medicine, The First Affiliated Hospital, Zhejiang University, Hangzhou, China.,Zhejiang Provincial Key Laboratory for Diagnosis and Treatment of Aging and Physic-Chemical Injury Diseases, Hangzhou, China
| | - Li-Ying Lin
- Department of Emergency Medicine, School of Medicine, The First Affiliated Hospital, Zhejiang University, Hangzhou, China.,Department of Geriatrics, School of Medicine, The First Affiliated Hospital, Zhejiang University, Hangzhou, China.,Zhejiang Provincial Key Laboratory for Diagnosis and Treatment of Aging and Physic-Chemical Injury Diseases, Hangzhou, China
| | - Li Li
- Department of Emergency Medicine, School of Medicine, The First Affiliated Hospital, Zhejiang University, Hangzhou, China.,Department of Geriatrics, School of Medicine, The First Affiliated Hospital, Zhejiang University, Hangzhou, China.,Zhejiang Provincial Key Laboratory for Diagnosis and Treatment of Aging and Physic-Chemical Injury Diseases, Hangzhou, China
| | - Yuan-Qiang Lu
- Department of Emergency Medicine, School of Medicine, The First Affiliated Hospital, Zhejiang University, Hangzhou, China.,Department of Geriatrics, School of Medicine, The First Affiliated Hospital, Zhejiang University, Hangzhou, China.,Zhejiang Provincial Key Laboratory for Diagnosis and Treatment of Aging and Physic-Chemical Injury Diseases, Hangzhou, China
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14
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Li H, Lin LY, Zhang Y, Lim Y, Rahman M, Beck A, Al-Hawwas M, Feng S, Bobrovskaya L, Zhou XF. Pro-BDNF Knockout Causes Abnormal Motor Behaviours and Early Death in Mice. Neuroscience 2020; 438:145-157. [PMID: 32413397 DOI: 10.1016/j.neuroscience.2020.05.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 05/05/2020] [Accepted: 05/06/2020] [Indexed: 12/27/2022]
Abstract
Brain derived neurotrophic factor (BDNF) is a member of the neurotrophin family, best characterized for its survival and differentiative effects in the central nervous system. Pro-BDNF, known as the precursor of BDNF, is believed to have opposite functions to mature BDNF (mBDNF). The opposing effects of Pro-BDNF and mBDNF have led researchers to propose a 'yin' (Pro-BDNF) and 'yang' (mBDNF) model of which, the specific mechanism of its opposing functions is unclear and requires further investigation. In order to elucidate pro-BDNF's explicit role, we established a pro-BDNF knockout (KO) mouse model. This BDNF pro-domain KO mouse model showed significant weight loss, impaired righting reflex, abnormal motor behaviours and short lifespan (less than 22 days), mimicking a Huntington's disease (HD)-like phenotype. ELISA results showed BDNF pro-domain KO not only blocked pro-BDNF, but also significantly affected the level of mBDNF. Abnormal morphologic changes were found in the dentate gyrus (DG) of the hippocampus in pro-BDNF KO mice, and western blot confirmed significant cell apoptosis in pro-BDNF KO mice brains. Furthermore, the expression of glutamic acid decarboxylase 65/67 (GAD65/67) was significantly reduced in pro-BDNF KO mice, indicating impaired inhibitory neurotransmission. Heterozygous (Het) mice showed impaired learning and memory capability and depressive-like behaviours, compared with wild type (WT) mice. Overall, these results support that pro-domain of BDNF is an indispensable part of the BDNF gene; without the proper formation of pro-BDNF, mBDNF cannot be produced successfully and function correctly on its own. Our study also supports the BDNF hypothesis in the pathogenesis of HD.
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Affiliation(s)
- Hua Li
- School of Pharmacy and Medical Sciences, Division of Health Sciences, University of South Australia, Adelaide, SA 5001, Australia
| | - Li-Ying Lin
- School of Pharmacy and Medical Sciences, Division of Health Sciences, University of South Australia, Adelaide, SA 5001, Australia
| | - Yan Zhang
- School of Pharmacy and Medical Sciences, Division of Health Sciences, University of South Australia, Adelaide, SA 5001, Australia; Department of Orthopaedics, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Yoon Lim
- Centre for Cancer Biology, University of South Australia, Adelaide, SA 5001, Australia
| | - Mehreen Rahman
- School of Pharmacy and Medical Sciences, Division of Health Sciences, University of South Australia, Adelaide, SA 5001, Australia
| | - Andrew Beck
- School of Pharmacy and Medical Sciences, Division of Health Sciences, University of South Australia, Adelaide, SA 5001, Australia
| | - Mohammed Al-Hawwas
- School of Pharmacy and Medical Sciences, Division of Health Sciences, University of South Australia, Adelaide, SA 5001, Australia
| | - Shiqing Feng
- Department of Orthopaedics, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Larisa Bobrovskaya
- School of Pharmacy and Medical Sciences, Division of Health Sciences, University of South Australia, Adelaide, SA 5001, Australia
| | - Xin-Fu Zhou
- School of Pharmacy and Medical Sciences, Division of Health Sciences, University of South Australia, Adelaide, SA 5001, Australia.
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15
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Newton R, Waszkowycz B, Seewooruthun C, Burschowsky D, Richards M, Hitchin S, Begum H, Watson A, French E, Hamilton N, Jones S, Lin LY, Waddell I, Echalier A, Bayliss R, Jordan AM, Ogilvie D. Discovery and Optimization of wt-RET/KDR-Selective Inhibitors of RET V804M Kinase. ACS Med Chem Lett 2020; 11:497-505. [PMID: 32292556 PMCID: PMC7153033 DOI: 10.1021/acsmedchemlett.9b00615] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 02/28/2020] [Indexed: 12/19/2022] Open
Abstract
A combination of focused library and virtual screening, hit expansion, and rational design has resulted in the development of a series of inhibitors of RETV804M kinase, the anticipated drug-resistant mutant of RET kinase. These agents do not inhibit the wild type (wt) isoforms of RET or KDR and therefore offer a potential adjunct to RET inhibitors currently undergoing clinical evaluation.
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Affiliation(s)
- Rebecca Newton
- Drug
Discovery Unit, Cancer Research UK, Manchester
Institute, University of Manchester, Alderley Park, Macclesfield SK10 4TG, U.K.
| | - Bohdan Waszkowycz
- Drug
Discovery Unit, Cancer Research UK, Manchester
Institute, University of Manchester, Alderley Park, Macclesfield SK10 4TG, U.K.
| | - Chitra Seewooruthun
- Department
of Molecular and Cell Biology, Henry Wellcome Building, University of Leicester, Lancaster Road, Leicester LE1 7RH, U.K.
| | - Daniel Burschowsky
- Department
of Molecular and Cell Biology, Henry Wellcome Building, University of Leicester, Lancaster Road, Leicester LE1 7RH, U.K.
| | - Mark Richards
- Astbury
Centre for Structural Molecular Biology, Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, U.K.
| | - Samantha Hitchin
- Drug
Discovery Unit, Cancer Research UK, Manchester
Institute, University of Manchester, Alderley Park, Macclesfield SK10 4TG, U.K.
| | - Habiba Begum
- Drug
Discovery Unit, Cancer Research UK, Manchester
Institute, University of Manchester, Alderley Park, Macclesfield SK10 4TG, U.K.
| | - Amanda Watson
- Drug
Discovery Unit, Cancer Research UK, Manchester
Institute, University of Manchester, Alderley Park, Macclesfield SK10 4TG, U.K.
| | - Eleanor French
- Drug
Discovery Unit, Cancer Research UK, Manchester
Institute, University of Manchester, Alderley Park, Macclesfield SK10 4TG, U.K.
| | - Niall Hamilton
- Drug
Discovery Unit, Cancer Research UK, Manchester
Institute, University of Manchester, Alderley Park, Macclesfield SK10 4TG, U.K.
| | - Stuart Jones
- Drug
Discovery Unit, Cancer Research UK, Manchester
Institute, University of Manchester, Alderley Park, Macclesfield SK10 4TG, U.K.
| | - Li-Ying Lin
- Leicester
Drug Discovery & Diagnostics Centre (LD3), R407a, Hodgkin Building, Lancaster Road, Leicester LE1 7HB, U.K.
| | - Ian Waddell
- Drug
Discovery Unit, Cancer Research UK, Manchester
Institute, University of Manchester, Alderley Park, Macclesfield SK10 4TG, U.K.
| | - Aude Echalier
- Department
of Molecular and Cell Biology, Henry Wellcome Building, University of Leicester, Lancaster Road, Leicester LE1 7RH, U.K.
| | - Richard Bayliss
- Astbury
Centre for Structural Molecular Biology, Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, U.K.
| | - Allan M. Jordan
- Drug
Discovery Unit, Cancer Research UK, Manchester
Institute, University of Manchester, Alderley Park, Macclesfield SK10 4TG, U.K.
| | - Donald Ogilvie
- Drug
Discovery Unit, Cancer Research UK, Manchester
Institute, University of Manchester, Alderley Park, Macclesfield SK10 4TG, U.K.
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16
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Chen CM, Ouyang S, Lin LY, Wu LJ, Xie TA, Chen JJ, Li ZX, Zhu GD, Ji TX, Pan ZY, Xia Y, Guo XG. Diagnostic accuracy of LAMP assay for HBV infection. J Clin Lab Anal 2020; 34:e23281. [PMID: 32157743 PMCID: PMC7370716 DOI: 10.1002/jcla.23281] [Citation(s) in RCA: 6] [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: 12/15/2019] [Revised: 02/13/2020] [Accepted: 02/18/2020] [Indexed: 12/13/2022] Open
Abstract
Background Detection of hepatitis B virus (HBV) is vital for the diagnosis of hepatitis B infection. A novel test loop‐mediated isothermal amplification (LAMP) has been successfully applied to detect various pathogens. However, the accuracy of LAMP in diagnosing HBV remains unclear. Therefore, in the present study, the accuracy of LAMP for HBV detection was evaluated systematically. Methods Embase, Cochrane Library, and PubMed databases were searched for studies using LAMP to detect HBV. Then, two researchers extracted data and assessed the quality of literature using the QUADAS‐2 tool independently. I2 statistic and chi‐square test were analyzed to investigate the heterogeneity, and Deek's funnel plot assessed the publication bias. The pooled sensitivity (SEN), specificity (SPE), positive LR (PLR), negative LR (NLR), diagnostic odds ratio (DOR), and 95% confidence intervals were displayed in forest plots. We calculated the area under the curve (AUC) to assess the overall efficiency of LAMP for HBV detection. Results A total of nine studies with 1298 samples were finally included in this evaluation. The pooled sensitivity and specificity of HBV detection were 0.91 (95% CI: 0.89 ~ 0.92) and 0.97 (95% CI: 0.94 ~ 0.99), respectively. The PLR, NLR, and DOR were 16.93 (95% CI: 6.15 ~ 46.55), 0.08 (95% CI: 0.05 ~ 0.14), and 397.57 (95% CI: 145.41 ~ 1087.07). Besides, the AUC was 0.9872, and Deek's plot suggested that there existed publication bias in the studies. Conclusion Compared with PCR, LAMP is a simple, rapid, and effective assay to diagnose HBV. However, additional evidence is essential to confirm that LAMP can replace other methods in diagnosing HBV infection.
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Affiliation(s)
- Chu-Mao Chen
- Department of Clinical Laboratory Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Shi Ouyang
- Department of Infectious Disease, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Li-Ying Lin
- Department of Clinical Laboratory Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Department of Clinical Medicine, The Third Clinical School of Guangzhou Medical University, Guangzhou, China
| | - Li-Juan Wu
- Baoan Maternal and Child Health Hospital, Jinan University, Shenzhen, China
| | - Tian-Ao Xie
- Department of Clinical Laboratory Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Department of Clinical Medicine, The Third Clinical School of Guangzhou Medical University, Guangzhou, China
| | - Juan-Jiang Chen
- Department of Clinical Laboratory Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Zhen-Xing Li
- Department of Respiratory Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Guo-Dong Zhu
- Department of Geriatrics, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Tian-Xing Ji
- Department of Clinical Medicine, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Zhi-Yong Pan
- Department of Clinical Laboratory Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Department of Clinical Medicine, The Third Clinical School of Guangzhou Medical University, Guangzhou, China
| | - Yong Xia
- Department of Clinical Laboratory Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Department of Clinical Medicine, The Third Clinical School of Guangzhou Medical University, Guangzhou, China
| | - Xu-Guang Guo
- Department of Clinical Laboratory Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Department of Clinical Medicine, The Third Clinical School of Guangzhou Medical University, Guangzhou, China.,Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
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17
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Lin TTL, Lin LY, Tsai CTT. P3761Correlation between CHA2DS2-VASc score and left atrial size in patients with atrial fibrillation: an upto 15-year prospective follow-up study. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Left atrial (LA) size represents atrial fibrillation (AF) burden and a predictor of AF-related stroke. CHA2DS2-VASc score is also a well-established predictor of AF-related stroke. It is unknown whether these two factors are correlated and complimentary to each other, or one of them is a major determinant of stroke risk for AF patients.
Methods
A total of 708 patients from the National Taiwan University AF Registry were followed upto 15 years. LA size was measured by M-mode of echocardiography and the CHA2DS2-VASc score was calculated as measures of stroke risk. Primary endpoints during follow-up were defined as ischemic strokes or transient ischemic accidents.
Results
Both LA size and CHA2DS2-VASc score were associated with the risk of stroke in univariate analyses (c statistic 0.662 [0.601 to 0.723] for CHA2DS2-VASc score and 0.595 [0.516 to 0.674] for LA size). There was a positive correlation between LA size and CHA2DS2-VASc score (r=0.17, P<0.0001). Patients with higher CHA2DS2-VASc scores had a higher mean LA size (P<0.01 for trend). When combining LA size and CHA2DS2-VASc score in the multivariate Cox model, only CHA2DS2-VASc score remained statistically significant to predict the thromboembolic endpoint (hazard ratio 1.39 [1.20–1.63]; P<0.001).
Mode of anlysis Harzard ratio (95% confidence interval) P value Univariate analysis* CHADS2-VASc score 1.42 (1.22–1.66) <0.001 Left Atrial Size 1.30 (1.04–1.62) 0.019 Multivariate analysis* CHADS2-VASc score 1.39 (1.20–1.63) <0.001 Left atrial size 1.20 (0.96–1.48) 0.106
Conclusion
There is a positive correlation between echocardiographic LA size and CHA2DS2-VASc score. LA size is not an independent predictor of AF-related stroke, but provides a diagnostic value to predict stroke risk through its association with CHA2DS2-VASc score. Calculation of CHA2DS2-VASc score may replace measurement of echocardiographic LA size when evaluating the risk of AF-related stroke.
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Affiliation(s)
- T T L Lin
- National Taiwan University Hospital Hsin-Chu Branch, Internal Medicine, Hsinchu, Taiwan
| | - L Y Lin
- National Taiwan University Hospital, Taipei, Taiwan
| | - C T T Tsai
- National Taiwan University Hospital, Taipei, Taiwan
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18
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Huang CY, Wu CK, Lin LY. P2602Inhaled iloprost improves echocardiographic myocardial performance during exercise in heart failure with preserved ejection fraction. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
The pathophysiology of HFpEF is complicated and treatments that improve outcomes in HFrEF have no substantial benefits in HFpEF. Impairments in LV global longitudinal strain (GLS) and LV diastolic function parameters have been regarded as novel echocardiographic markers to predict cardiovascular events in HFpEF. Preliminary trials indicate that iloprost, an inhaled prostacyclin analougue, improves exercise hemodynamics in both patients with pulmonary artery hypertension and pulmonary hypertension associated with HFpEF.
Purpose
We aim to investigate the impact of inhaled iloprost on LV global longitudinal strain, LV diastolic function and RV function during exercise in HFpEF population.
Methods
34 patients diagnosed with HFpEF were included with exclusion of severe pulmonary, coronary artery, valvular heart and pericardial diseases. Subjects were randomized 1:1 to inhalation of iloprost or placebo. Transthoracic echocardiography was performed at rest and after 6-minute supine bicycle exercise at 20-Watt workload. We utilized tissue speckle tracking by QLAB software to derive LV GLS and global strain rate during LV isovolumetric relaxation period (SRIVR). E/e', E/SRIVR, tricuspid regurgitation pressure gradient (TRPG), tissue Doppler imaging of RV lateral tricuspid annulus and tricuspid annular plane systolic excursion (TAPSE) were measured to evaluate changes of myocardial performance.
Results
LV GLS during exercise significantly enhanced after iloprost use. E/SRIVR, a novel predictor of LV filling pressure, was significantly decreased. E/e' was also lower in iloprost group by trend. Improvements in RV function and degree of pulmonary hypertension during exercise with iloprost were observed in this study.
Echocardiographic myocardial function endpoints during 20-Watt excercise between iloprost and placebo groups Iloprost (N=17) Placebo (N=17) P value LV global longitudinal strain, % −4.96±1.20 −0.75±3.00 <0.001 E/SRIVR, cm 206.41±113.55 454.13±262.98 0.005 E/e' mean 10.77±2.39 14.41±12.14 0.235 TAPSE, cm 2.62±0.62 2.37±0.56 0.221 TRPG, mmHg 28.37±12.47 44.25±9.29 <0.001 TDI lateral tricuspid annulus, cm/s 16.41±4.61 14.77±2.92 0.222
Effects of iloprost at rest and exercise
Conclusions
Our study is the first to demonstrate that, in patients with HFpEF, inhaled iloprost favorably enhances LV GLS reserves, decreases LV diastolic filling load, reduces pulmonary hypertension and thereby improves RV function during exercise.
Acknowledgement/Funding
This work was supported in part by the National Science Council of the Republic of China, Taiwan (NSC107-2314-B-002-265-MY3)
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Affiliation(s)
- C Y Huang
- Kinmen Hospital, Ministry of Health and Welfare, Division of Cardiology, Department of Internal Medicine, Kinmen, Taiwan
| | - C K Wu
- National Taiwan University, Division of Cardiology, Department of Internal Medicine, Taipei, Taiwan
| | - L Y Lin
- National Taiwan University, Division of Cardiology, Department of Internal Medicine, Taipei, Taiwan
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19
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Chiang JY, Fu CM, Lin YC, Ku BW, Hsu SU, Wu CK, Lin LY, Lin JL, Chiang FT, Juang JM. P1880Entropy-based algorithm for atrial fibrillation detection using photoplethysomgraphic signal recorded by a smart watch. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Atrial fibrillation (AF) is the most common arrhythmia, and its paroxysmal and short duration nature makes its detection challenging. The most important limitation of current smartwatches is that patients need to touch to the sensor of the watch to record signals when patients feel discomfort. We developed a wearable smart watch and evaluated its accuracy to differentiate AF from sinus rhythm, which can continuously detecting heart rhythm without hand touching the device.
Methods and results
A wearable smart watch with PPG sensor and electrocardiogram (ECG) recording function was used for signal acquisition. A total 399 patients with a mean age of 67 years old were enrolled in the study, of whom 237 (81.5%) were male, and 101 have been diagnosed with AF. Pulse wave extracted from the green light spectrum of the signal and ECG were recorded for about 10 minutes for each patient. Pulse-to-pulse intervals (PPI) were automatically identified. All ECG signals were verified by two cardiologists. The correlation between R-to-R interval on ECG and PPI were excellent, with a correlation coefficient R >0.99 (p<0.05). An entropy-based algorithm which combined Shannon entropy of successive difference of PPI and sample entropy of PPI was used to discriminate between AF and sinus rhythm. This method had high sensitivity and specificity (96% and 98%, respectively), the area under receiver operating characteristic curve reached 0.98.
Conclusions
We developed an entropy-based algorithm for AF detection with PPG signal recorded by a wearable smart watch. This algorithm discriminates AF from sinus rhythm accurately. This advance in technology overcomes an important clinical obstacle and can increase the AF detection rate tremendously.
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Affiliation(s)
- J Y Chiang
- National Taiwan University Hospital, Internal medicine, Taipei, Taiwan
| | - C M Fu
- MediaTek Inc, Taipei, Taiwan
| | - Y C Lin
- MediaTek Inc, Taipei, Taiwan
| | - B W Ku
- MediaTek Inc, Taipei, Taiwan
| | - S U Hsu
- MediaTek Inc, Taipei, Taiwan
| | - C K Wu
- MediaTek Inc, Taipei, Taiwan
| | - L Y Lin
- National Taiwan University Hospital, Division of Cardiology, Department of Internal Medicine, Taipei, Taiwan
| | - J L Lin
- National Taiwan University Hospital, Division of Cardiology, Department of Internal Medicine, Taipei, Taiwan
| | - F T Chiang
- National Taiwan University Hospital, Division of Cardiology, Department of Internal Medicine, Taipei, Taiwan
| | - J M Juang
- National Taiwan University Hospital, Division of Cardiology, Department of Internal Medicine, Taipei, Taiwan
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20
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Juang JM, Chen CY, Liu YB, Lin LY, Ho LT, Huang HC, Lai LP, Hwang JJ, Wu CK, Lin TT, Yu CC, Lu TP, Chattopadhyay A, Yu QY, Lin JL. P1604Validating previously reported Brugada syndrome-associated common variants identified in caucasian population in the Han Chinese BrS cohort in Taiwan: SADS-BrS registry. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0363] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Brugada syndrome (BrS) is a sudden arrhythmic death. The prevalence of BrS is higher in the Southeast Asian populations than that in Caucasian patients. A previous genome-wide association study (GWAS) has reported 13 SNPs significantly associated with BrS. However, no study was performed to validate whether these SNPs are enriched in BrS patients in Han Chinese (HC).
Purpose
Evaluating the common variants previously reported in Caucasian BrS patients could be generalized to HC BrS patients in Taiwan
Methods
We genotyped 200 unrelated BrS patients using Affymetrix TWB Array (N=653,291 SNPs, a customized array for HC in Taiwan). The controls are obtained from the Taiwan Biobank (N ≈ 16,000) using the same array. An imputation workflow was shown in Figure 1. To confirm the accuracy of the imputed genotype of each variant, Sanger sequencing was performed in 10% of randomly selected cases.
Results
Among the 3 most important common variants (rs11708996 in SCN5A, rs10428132 in SCN10A and rs9388451 in HEY2/NCOA7) reported in the previous GWAS mainly conducted in Caucasian BrS patients, 2 of them (rs10428132 and rs9388451) were successfully replicated in the HC population in Taiwan (P<0.01). We also found that the differences of minor allele frequency (dMAF: the MAF of cases minus the MAF of controls) of the two variants were relatively smaller between the BrS cases and healthy controls in HC population compared with that in Caucasian populations (dMAF, rs9388451: 0.15 (Caucasian) vs −0.07 (HC); rs10428132: 0.28 (Caucasian) vs 0.11 (HC)). For the remaining 10 common variants reaching genome-wide significance (P=5×10–8) in Caucasian BrS patients, 9 of them were also significantly enriched in the HC BrS patients after the Bonferroni correction (P<0.05/12=0.0042). We next analyzed the variants identified in the previous GWAS on ECG traits (PR interval, QRS duration, QTc interval, and heart rate) in the Caucasian population. Among the reported 75 variants associated with ECG traits, 5 common variants (rs6798015 (PR), rs1760876 (QRS), rs6795970 (PR/QRS), rs2074238 (QTc) and rs314370 (heart rate)) were significant after Bonferroni correction (P<0.05/75=0.00066).
Figure 1
Conclusions
The preliminary results indicated that 85% of common variants of SCN10A and HEY2/NCOA7 previously reported in Caucasian BrS patients are replicated in BrS patients in the HC population but not the common variant of SCN5A (rs11708996). Furthermore, the common variants of SCN10A and HEY2/NCOA7 related to cardiac depolarization or repolarization may also contribute to the development of BrS.
Acknowledgement/Funding
NTUH 106-S3469, NTUH106-S3458 and NTUH 106-018
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Affiliation(s)
- J.-M Juang
- National Taiwan University Hospital, Division of Cardiovascular Center and Department of Internal Medicine, Taipei, Taiwan
| | - C Y Chen
- National Taiwan University Hospital, Division of Cardiovascular Center and Department of Internal Medicine, Taipei, Taiwan
| | - Y B Liu
- National Taiwan University Hospital, Division of Cardiovascular Center and Department of Internal Medicine, Taipei, Taiwan
| | - L Y Lin
- National Taiwan University Hospital, Division of Cardiovascular Center and Department of Internal Medicine, Taipei, Taiwan
| | - L T Ho
- National Taiwan University Hospital, Division of Cardiovascular Center and Department of Internal Medicine, Taipei, Taiwan
| | - H C Huang
- National Taiwan University Hospital, Division of Cardiovascular Center and Department of Internal Medicine, Taipei, Taiwan
| | - L P Lai
- National Taiwan University Hospital, Division of Cardiovascular Center and Department of Internal Medicine, Taipei, Taiwan
| | - J J Hwang
- National Taiwan University Hospital, Division of Cardiovascular Center and Department of Internal Medicine, Taipei, Taiwan
| | - C K Wu
- National Taiwan University Hospital, Division of Cardiovascular Center and Department of Internal Medicine, Taipei, Taiwan
| | - T T Lin
- National Taiwan University Hospital, Division of Cardiovascular Center and Department of Internal Medicine, Taipei, Taiwan
| | - C C Yu
- National Taiwan University Hospital, Division of Cardiovascular Center and Department of Internal Medicine, Taipei, Taiwan
| | - T P Lu
- National Taiwan University Hospital, Division of Cardiovascular Center and Department of Internal Medicine, Taipei, Taiwan
| | - A Chattopadhyay
- National Taiwan University, Bioinformatics and Biostatistics Core, Center of Genomic Medicine, Taipei, Taiwan
| | - Q Y Yu
- National Taiwan University, Bioinformatics and Biostatistics Core, Center of Genomic Medicine, Taipei, Taiwan
| | - J L Lin
- National Taiwan University Hospital, Division of Cardiovascular Center and Department of Internal Medicine, Taipei, Taiwan
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21
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Liu YT, Lin LY, Tuan CW, Yang CY, Tang PL. Analyzing the Association HbA1c control by Depression, social participation and Utilizing Self-management Questionnaire. Diabetes Res Clin Pract 2019; 153:103-110. [PMID: 31175913 DOI: 10.1016/j.diabres.2019.05.037] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 05/30/2019] [Indexed: 10/26/2022]
Abstract
AIMS In Taiwan, 24.7% of the population aged ≥65 years has been diagnosed with type 2 diabetes. Only 23% of diabetes patients effectively conduct self-management. This study focused on the effects of self-management among type 2 diabetes patients aged ≥65 years on the effectiveness of their HbA1c control. METHODS This cross-sectional study enrolled patients aged ≥65 years with type 2 diabetes who were admitted to a metabolic clinic at a medical center and treated over six months. 192 patients were recruited, and data were recorded using structured questionnaires. The HbA1c level of the recruited subjects was measured for statistical analysis. RESULTS Older age, education, living alone, and an above-average level of self-management were associated with increased HbA1c control effectiveness; patients who used insulin had worse HbA1c control effectiveness. CONCLUSION That cohabitants living with diabetes patients affected the effectiveness of HbA1c control, suggesting that family members should also participate in self-management education programs. Given the advances in information networks, a lively and interactive mode of health education animation for uneducated diabetes patients should be developed, and medical teams should be encouraged to establish a two-way communication channel with patients improve the effectiveness of HbA1c control in diabetes patients aged >65 years.
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Affiliation(s)
- Yun-Ting Liu
- Department of Nursing, Kaohsiung Veterans General Hospital, Taiwan, ROC.
| | - Li-Ying Lin
- Department of Nursing, Kaohsiung Veterans General Hospital, Taiwan, ROC; Department of Nursing, Meiho University, Kaohsiung, Taiwan, ROC.
| | - Chi-Wei Tuan
- Department of Nursing, Kaohsiung Veterans General Hospital, Taiwan, ROC.
| | - Chun-Ying Yang
- Department of Nursing, Kaohsiung Veterans General Hospital, Taiwan, ROC.
| | - Pei-Ling Tang
- Research Center of Medical Informatics, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan, ROC; Department of Health-Business Administration, Fooyin University, Kaohsiung, Taiwan, ROC; College of Nursing, Kaohsiung Medical University, Kaohsiung, Taiwan, ROC.
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22
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Chen SQ, Liu WC, Zhang ZZ, Lin LY, Chen SM, Huang GL, Lin CZ, Wang L. [Application of closed negative pressure irrigation and suction device in the treatment of high perianal abscess]. Zhonghua Wei Chang Wai Ke Za Zhi 2019; 22:364-369. [PMID: 31054551 DOI: 10.3760/cma.j.issn.1671-0274.2019.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the efficacy of closed negative pressure irrigation and suction device (Patent number: Z200780013509.8) in the treatment of high perianal abscess. Methods: From January 2015 to December 2016, ≥18-year-old patients with primary high perianal abscess who were treated at our department were prospectively enrolled. Exclusion criteria: (1) recurrent perianal abscess; (2) complicated with anal fistula formation; (3) preoperative, intraoperative or postoperative physical therapy, and curettage treatment, negative pressure irrigation; (4) Crohn's disease-related perianal abscess; (5) with immunosuppressive status, such as transplant recipients; (6) co-existence of malignant tumors, such as leukemia; (7) with diabetes; (8) those who could not receive long-term follow-up and were not suitable to participate in this study. According to the random number table method, the patients were randomly divided into negative pressure irrigation and suction group and routine drainage group. All patients were clearly diagnosed and the location and size of the perianal abscess were marked before surgery. These two groups were treated as follows: (1) Negative pressure irrigation and suction group: the skin was incised at a diameter of 1-2 cm at the site where the abscess fluctuated most obviously. After the abscess was removed, a closed negative pressure irrigation and suction device was installed and the pressure of -200 to -100 mmHg (1 mmHg=0.133 kPa) was maintained to keep the abscess cavity collapsed. Generally, the irrigation was stopped 5 days later or when the drainage was clear. The closed vacuum suction was maintained for 2 additional days, before the wound was sutured. (2) Conventional drainage group: conventional incision and drainage was carried out. The skin was cut at a diameter of 8 to 10 cm at the site of abscess with most obvious fluctuation. After the abscess was removed, normal saline gauze was used for dressing. Dressing was changed regularly until the wound healed. The efficacy, operative time, intraoperative bleeding, incision length, frequency of dressing change, pain index (visual analogue score, VAS score), postoperative healing time, complications, recurrence rate of perianal abscess, anal fistula formation rate were observed. The t test and χ2 test were used for comparison between the 2 groups. Results: There were both 40 patients in the negative pressure irrigation and suction group and the conventional drainage group. There were 28 males and 12 females in negative pressure irrigation and suction group with a mean age of (38.3±12.0) years and mean disease course of (6.6±2.1) days. The abscess in pelvic-rectal space accounted for 50.0% (20/40) and the mean diameter of abscess was (8.0±3.7) cm. There were 26 males and 14 females in the conventional drainage group with a mean age of (37.1±11.8) years and mean disease course of (6.4±2.5) days. The abscess in pelvic-rectal space accounted for 55.0% (22/40) and the diameter of abscess was (8.2±3.5) cm. The differences in baseline data between two groups were not statistically significant (all P>0.05). Both groups successfully completed the operation. There was no significant difference in operative time between two groups (P>0.05). As compared to conventional drainage group, intraoperative blood loss in negative pressure irrigation and suction group was less [(12.1±5.5) ml vs. (18.3±4.4) ml, t=5.606, P<0.001], incision length was shorter [(2.3±0.8) cm vs. (7.6±1.7) cm, t=17.741, P<0.001], postoperative VAS pain scores at 1-, 3-, 7-, and 14-day after operation were lower [3.7±1.4 vs. 7.6±1.8, t=10.816, P<0.001; 3.0±1.3 vs. 6.8±1.6, t=11.657, P<0.001; 2.7±0.9 vs. 5.1±1.1, t=10.679, P<0.001; 1.2±0.3 vs. 1.6±0.4, t=5.060, P=0.019], the dressing change within 7 days after operation was less (3.5±1.2 vs. 12.6±2.7, t=19.478, P<0.001), postoperative healing time was shorter [(10.4±3.0) d vs. (13.5±3.8) d, t=4.049, P<0.001] and postoperative complication rate was lower [17.5% (7/40) vs. 2.5% (1/40), χ2=5.000, P=0.025]. During follow-up of 12 to 36 (24±5) months, the recurrence rate of perianal abscess within 1 year after operation and anal fistula formation rate in negative pressure irrigation and suction group were lower than those in conventional drainage group [5.0% (2/40) vs. 20.0% (8/40), χ2=4.114, P=0.042 and 2.5% (1/40) vs. 17.5% (7/40), χ2=5.000, P=0.025, respectirely]. The one-time cure rate of negative pressure irrigation and suction group and conventional drainage group was 92.5% (37/40) and 62.5%(25/40), respectirely (χ2=10.323, P=0.001). Conclusions: The application of the negative pressure irrigation and suction device in the treatment of high perianal abscess can improve the efficiency of one-time cure, reduce postoperative pain, accelerate healing time, decrease the morbidity of postoperative complication and the rates of abscess recurrence and anal fistula formation, indicating an improvement of the treatment.
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Affiliation(s)
- S Q Chen
- Department of General Surgery, the 900th Hospital of The Joint Logistics Support Force of Chinese PLA, (Fuzhou General Hospital of Fujian Medical University, East Hospital Affiliated To Xiamen University), Fuzhou 350025, China
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23
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Raslau FD, Lin LY, Andersen AH, Powell DK, Smith CD, Escott EJ. Peeking into the Black Box of Coregistration in Clinical fMRI: Which Registration Methods Are Used and How Well Do They Perform? AJNR Am J Neuroradiol 2018; 39:2332-2339. [PMID: 30361428 DOI: 10.3174/ajnr.a5846] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 08/25/2018] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Interpretation of fMRI depends on accurate functional-to-structural alignment. This study explores registration methods used by FDA-approved software for clinical fMRI and aims to answer the following question: What is the degree of misalignment when registration is not performed, and how well do current registration methods perform? MATERIALS AND METHODS This retrospective study of presurgical fMRI for brain tumors compares nonregistered images and 5 registration cost functions: Hellinger, mutual information, normalized mutual information, correlation ratio, and local Pearson correlation. To adjudicate the accuracy of coregistration, we edge-enhanced echo-planar maps and rated them for alignment with structural anatomy. Lesion-to-activation distances were measured to evaluate the effects of different cost functions. RESULTS Transformation parameters were congruent among Hellinger, mutual information, normalized mutual information, and the correlation ratio but divergent from the local Pearson correlation. Edge-enhanced images validated the local Pearson correlation as the most accurate. Hellinger worsened misalignment in 59% of cases, primarily exaggerating the inferior translation; no cases were worsened by the local Pearson correlation. Three hundred twenty lesion-to-activation distances from 25 patients were analyzed among nonregistered images, Hellinger, and the local Pearson correlation. ANOVA analysis revealed significant differences in the coronal (P < .001) and sagittal (P = .04) planes. If registration is not performed, 8% of cases may have a >3-mm discrepancy and up to a 5.6-mm lesion-to-activation distance difference. If a poor registration method is used, 23% of cases may have a >3-mm discrepancy and up to a 6.9-mm difference. CONCLUSIONS The local Pearson correlation is a special-purpose cost function specifically designed for T2*-T1 coregistration and should be more widely incorporated into software tools as a better method for coregistration in clinical fMRI.
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Affiliation(s)
- F D Raslau
- From the Departments of Radiology (F.D.R., L.Y.L., E.J.E., C.D.S.)
| | - L Y Lin
- From the Departments of Radiology (F.D.R., L.Y.L., E.J.E., C.D.S.)
| | | | | | - C D Smith
- From the Departments of Radiology (F.D.R., L.Y.L., E.J.E., C.D.S.)
- Neurology (C.D.S.)
- Neuroscience (A.H.A., D.K.P., C.D.S.)
| | - E J Escott
- From the Departments of Radiology (F.D.R., L.Y.L., E.J.E., C.D.S.)
- Otolaryngology-Head & Neck Surgery (E.J.E.), University of Kentucky, Lexington, Kentucky
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24
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Lin LY, Chiou SC. Influence of facial threading on various physiological parameters of the skin: non-randomized trial involving adult women in Taiwan. An Bras Dermatol 2018; 93:659-664. [PMID: 30156614 PMCID: PMC6106667 DOI: 10.1590/abd1806-4841.20186865] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Accepted: 04/13/2017] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Facial threading involves the removal of hairs to restore facial skin smoothness. However, its effectiveness has not been rigorously evaluated. OBJECTIVE To evaluate effects of facial threading on skin roughness, hydration, melanin index, and vellus hair on the face, complemented by a subjective evaluation of the tactile feel of the skin and improvement in skin color. METHOD Participants who had not used exfoliators for two weeks before the experiment were included. Each participant underwent one session of facial threading every 21 days, for a total of 3 sessions. A three-dimensional skin roughness instrument and a multifunctional skin testing system were used to evaluate changes in roughness, hydration, and pigmentation on the forehead, cheeks, and corners of the mouth. A photomicrographic camera was used to record changes in vellus hair. Subjective reports of skin smoothness and color were recorded. RESULT Eighteen participants completed the study. Facial threading produced a significant decrease in skin roughness on the forehead (22.42%, p = .013), right cheek (77%, p = .02), and left corner of the mouth (33.02%, p = .001). Subjective improvement in tactile feel of the skin and coloring were reported. STUDY LIMITATIONS The study did not include randomization, with further limitations of a small sample size and a single site. CONCLUSION Facial threading reduced skin roughness by 26.74% after three threading sessions, with improved subjective assessment of tactile feel and coloring. Future research should include a comparison with other cosmetic products with similar beautifying effects or a control group.
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Affiliation(s)
- Li-Ying Lin
- Department of Cosmetic Science, Chung Hwa University of Medical
Technology, Tainan City, Taiwan
- Graduate School of Design, National Yunlin University of Science and
Technology, Yunlin County, Taiwan
| | - Shang-Chia Chiou
- Graduate School of Design, National Yunlin University of Science and
Technology, Yunlin County, Taiwan
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25
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Zheng BY, Gao WY, Huang XY, Lin LY, Fang XF, Chen ZX, Wang XZ. HBx promotes the proliferative ability of HL‑7702 cells via the COX‑2/Wnt/β‑catenin pathway. Mol Med Rep 2018; 17:8432-8438. [PMID: 29693167 DOI: 10.3892/mmr.2018.8906] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Accepted: 02/13/2018] [Indexed: 11/06/2022] Open
Abstract
Hepatitis B virus X protein (HBx) has been termed a viral oncoprotein, and is involved in the initiation and progression of hepatocellular carcinoma (HCC). Cyclooxygenase‑2 (COX‑2) and β‑catenin have been attributed to the oncogenic activity of HBx in HBV‑associated HCC. The present study aimed to determine whether there is crosstalk between COX‑2 and the Wnt/β‑catenin signaling pathway during HL‑7702‑HBx cell proliferation, and to investigate the associated underlying molecular mechanism. In the present study, cell proliferation assay, colony formation assay and flow cytometric analysis were used to detect the proliferative ability of cells. Reverse transcription‑quantitative polymerase chain reaction and western blotting were performed to examine the mRNA and protein expression of COX‑2, β‑catenin, cyclin‑D1 and c‑myc. The results demonstrated that HL‑7702‑HBx exhibited increased cell proliferation, higher colony formation efficiency and a shortened G1 period of the cell cycle. In addition, the mRNA and protein expression levels of COX‑2 were increased, and this was associated with HL‑7702‑HBx cell growth. Furthermore, the expression of β‑catenin and its target genes, cyclin‑D1 and c‑myc proto‑oncogene protein, was upregulated by HBx via COX‑2. Finally, HBx promoted HL‑7702 cell proliferation through the Wnt/β‑catenin signaling pathway. In conclusion, the primary finding of the present study was that HBx may promote HL‑7702 cell proliferation via the COX‑2/Wnt/β‑catenin pathway. Thus, it may be helpful to further investigate the molecular mechanism of HBV‑associated hepatocellular carcinoma.
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Affiliation(s)
- Bi-Yun Zheng
- Department of Gastroenterology, Union Hospital of Fujian Medical University, Fuzhou, Fujian 350001, P.R. China
| | - Wen-Yu Gao
- Department of Gastroenterology, Union Hospital of Fujian Medical University, Fuzhou, Fujian 350001, P.R. China
| | - Xiao-Yun Huang
- Department of Gastroenterology, Union Hospital of Fujian Medical University, Fuzhou, Fujian 350001, P.R. China
| | - Li-Ying Lin
- Department of Gastroenterology, Union Hospital of Fujian Medical University, Fuzhou, Fujian 350001, P.R. China
| | - Xue-Fen Fang
- Department of Gastroenterology, Union Hospital of Fujian Medical University, Fuzhou, Fujian 350001, P.R. China
| | - Zhi-Xin Chen
- Department of Gastroenterology, Union Hospital of Fujian Medical University, Fuzhou, Fujian 350001, P.R. China
| | - Xiao-Zhong Wang
- Department of Gastroenterology, Union Hospital of Fujian Medical University, Fuzhou, Fujian 350001, P.R. China
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Lin LY, Evans SE, Fairall L, Schwabe JWR, Wagner SD, Muskett FW. Backbone resonance assignment of the BCL6-BTB/POZ domain. Biomol NMR Assign 2018; 12:47-50. [PMID: 28929458 PMCID: PMC5869878 DOI: 10.1007/s12104-017-9778-z] [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] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 09/13/2017] [Indexed: 06/07/2023]
Abstract
BCL6 is a transcriptional repressor. Two domains of the protein, the N-terminal BTB-POZ domain and the RD2 domain are responsible for recruitment of co-repressor molecules and histone deacetylases. The BTB-POZ domain is found in a large and diverse range of proteins that play important roles in development, homeostasis and neoplasia. Crystal structures of several BTB-POZ domains, including BCL6 have been determined. The BTB-POZ domain of BCL6 not only mediates dimerisation but is also responsible for recruitment of co-repressors such as SMRT, NCOR and BCOR. Interestingly both SMRT and BCOR bind to the same site within the BCL6 BTB-POZ domain despite having very different primary sequences. Since both peptides and small molecules have been shown to bind to the co-repressor binding site it would suggest that the BTB_POZ domain is a suitable target for drug discovery. Here we report near complete backbone 15N, 13C and 1H assignments for the BTB-POZ domain of BCL6 to assist in the analysis of binding modes for small molecules.
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Affiliation(s)
- Li-Ying Lin
- Leicester Drug Discovery and Diagnostics Centre, Maurice Shock Building, University of Leicester, University Road, Leicester, LE1 7RH, UK
| | - S E Evans
- Leicester Drug Discovery and Diagnostics Centre, Maurice Shock Building, University of Leicester, University Road, Leicester, LE1 7RH, UK
| | - L Fairall
- Leicester Institute of Structural and Chemical Biology, Department of Molecular and Cell Biology, University of Leicester, Henry Wellcome Building, University Road, Leicester, LE1 7RN, UK
| | - John W R Schwabe
- Leicester Institute of Structural and Chemical Biology, Department of Molecular and Cell Biology, University of Leicester, Henry Wellcome Building, University Road, Leicester, LE1 7RN, UK
| | - Simon D Wagner
- Department of Cancer Studies and Ernest and Helen Scott Haematological Research Institute, University of Leicester, Lancaster Road, Leicester, LE1 7HB, UK.
| | - Frederick W Muskett
- Leicester Institute of Structural and Chemical Biology, Department of Molecular and Cell Biology, University of Leicester, Henry Wellcome Building, University Road, Leicester, LE1 7RN, UK.
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Yang EKL, Lin LY, Lin PY. Detection of a novel HLA-DRB1*12 variant, HLA-DRB1*12:68, in a Taiwanese individual. HLA 2017; 91:145-146. [PMID: 29152925 DOI: 10.1111/tan.13176] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Accepted: 11/14/2017] [Indexed: 11/28/2022]
Abstract
One nucleotide substitution at residue 628 of HLA-DRB1*12:01:01:01 results in a novel allele, HLA-DRB1*12:68.
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Affiliation(s)
- E K L Yang
- Laboratory of Immunogenetics, Tzu Chi Cord Blood Bank, and Buddhist Tzu Chi Marrow Donor Registry, Buddhist Tzu Chi Stem Cells Centre, Hualien Tzu Chi Hospital, Hualien, Taiwan.,Department of Laboratory Medicine, Buddhist Tzu Chi University, Hualien, Taiwan
| | - L Y Lin
- Department of Medical Technology, Chung Shan Medical University, Taichung, Taiwan
| | - P Y Lin
- Laboratory of Immunogenetics, Tzu Chi Cord Blood Bank, and Buddhist Tzu Chi Marrow Donor Registry, Buddhist Tzu Chi Stem Cells Centre, Hualien Tzu Chi Hospital, Hualien, Taiwan
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Jordan AM, Newton R, Waszkowycz B, Bayliss R, Begum H, Burschowsky D, Echalier A, Hitchin S, Hutton C, Johns S, Jones S, Lin LY, Richards M, Seewooruthun C, Stowell A, Waddell I, Watson M, Ogilvie D. Abstract 3236: Delivering selective and cell-active inhibitors of V804M mutant RET kinase through structure-guided drug discovery. Cancer Res 2017. [DOI: 10.1158/1538-7445.am2017-3236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Activating gene fusions in the RET receptor tyrosine kinase have been found to drive 1-2% of lung adenocarcinomas and therefore offer an attractive target for targeted therapy. Whilst non-selective tyrosine kinase inhibitors with RET activity are efficacious in this setting, their use is generally limited by dose limiting toxicity associated with their more potent activity versus other targets, specifically KDR (VEGFR2) in the case of cabozantinib and vandetanib. Given this limitation, there is considerable interest in developing more selective inhibitors of RET kinase. Tyrosine kinase inhibitors are prone to early clinical failure due to mutations in the kinase ATPase binding domain, which render the kinase catalytically active but no longer sensitive to drug treatment. Such mutations often occur in the so-called “gatekeeper” region and in this specific case, resistance is predicted to arise from a Val-Met or Val-Leu mutation at residue 804. Through a combination of computational methods, structural biology and drug design, we have identified and further optimized a series of inhibitors of the V804M mutant RET kinase which show sub-micromolar cellular activity in cells driven by V804M RET. Moreover, these agents show excellent selectivity against the wtRET kinase and KDR. As such, these agents may offer valuable start-points for second-generation RET inhibitors for use in patents who relapse after treatment with first generation selective RET inhibitors.
Citation Format: Allan M. Jordan, Rebecca Newton, Bohdan Waszkowycz, Richard Bayliss, Habiba Begum, Daniel Burschowsky, Aude Echalier, Samantha Hitchin, Colin Hutton, Shaun Johns, Stuart Jones, Li-Ying Lin, Mark Richards, Chitra Seewooruthun, Alex Stowell, Ian Waddell, Mandy Watson, Donald Ogilvie. Delivering selective and cell-active inhibitors of V804M mutant RET kinase through structure-guided drug discovery [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2017; 2017 Apr 1-5; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2017;77(13 Suppl):Abstract nr 3236. doi:10.1158/1538-7445.AM2017-3236
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Affiliation(s)
- Allan M. Jordan
- 1Cancer Research UK Manchester Inst., Manchester, United Kingdom
| | - Rebecca Newton
- 1Cancer Research UK Manchester Inst., Manchester, United Kingdom
| | | | | | - Habiba Begum
- 1Cancer Research UK Manchester Inst., Manchester, United Kingdom
| | | | | | - Samantha Hitchin
- 1Cancer Research UK Manchester Inst., Manchester, United Kingdom
| | - Colin Hutton
- 1Cancer Research UK Manchester Inst., Manchester, United Kingdom
| | - Shaun Johns
- 1Cancer Research UK Manchester Inst., Manchester, United Kingdom
| | - Stuart Jones
- 1Cancer Research UK Manchester Inst., Manchester, United Kingdom
| | - Li-Ying Lin
- 3University of Leicester, Leicester, United Kingdom
| | | | | | - Alex Stowell
- 1Cancer Research UK Manchester Inst., Manchester, United Kingdom
| | - Ian Waddell
- 1Cancer Research UK Manchester Inst., Manchester, United Kingdom
| | - Mandy Watson
- 1Cancer Research UK Manchester Inst., Manchester, United Kingdom
| | - Donald Ogilvie
- 1Cancer Research UK Manchester Inst., Manchester, United Kingdom
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Lin LY, Huang YH, Hung CL, Chen YM, Kuo CJ, Ku YC. [The Status, Change and Health Issues of Inpatients' Sixth Vital Sign in a Medical Center]. Hu Li Za Zhi 2017; 64:55-65. [PMID: 28393339 DOI: 10.6224/jn.64.000024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Hospitalized patients generally have elevated levels of emotional distress. Gaining a better under-standing of the problem of emotional distress among hospitalized patients is conducive to providing appropriate emotional care and promoting their recovery. PURPOSE To analyze the scores for the "sixth vital sign" (i.e., emotional distress), diversification, and the health-related problems of hospitalized patients at a medical center in Taiwan. The results may offer an important reference for providing effective emotional care to hospitalized patients. METHODS A retrospective descriptive research design was used. Data were collected from all of the 27,885 inpatients that were registered at the target hospital in 2013. Further, a total of 245,814 attendance records were assessed to extract the data that were relevant to emotional distress. RESULTS The findings revealed that 58.3% of hospitalized patients had earned a sixth vital sign score ≥ 1 and that 0.8% of these patients had earned a score ≥ 4. On the whole, the sixth vital sign scores of hospitalized patients were found to decrease progressively with the number of hospitalization days except for hematology and oncology, neurosurgery, and plastic surgery patients. The highest emotional distress scores were found among family medicine, dermatology, and plastic surgery patients. Moreover, emotional distress scores were significantly higher in patients who had health problems that involved pain, anxiety, or sleep disorder. CONCLUSIONS / IMPLICATIONS FOR PRACTICE The present study suggests that improving the emotional care of hematology, oncology, neurosurgery, family medicine, dermatology, and plastic surgery patients and of patients with health problems involving pain, anxiety, or sleep disorder may significantly improve the quality of inpatient holistic healthcare. Only 0.8% of the subjects in the present study had an emotional distress score ≥ 4, which is significantly lower than the level reported in other similar studies. Our findings suggest that related education and training for nursing staffs may improve their assessment and care practices in caring for patients with emotional distress. Furthermore, using more appropriate words, methods, and environments to evaluate the emotional distress of patients holds the potential to improve assessment and care for these patients.
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Affiliation(s)
- Li-Ying Lin
- Department of Nursing, Kaohsiung Veterans General Hospital, Taiwan, ROC
| | - Ya-Hui Huang
- Department of Nursing, Kaohsiung Veterans General Hospital, Taiwan, ROC
| | - Chung-Lung Hung
- Department of Nursing, Kaohsiung Veterans General Hospital, Taiwan, ROC
| | - Ya-Mei Chen
- Department of Nursing, Kaohsiung Veterans General Hospital, Taiwan, ROC
| | - Ching-Ju Kuo
- Department of Nursing, Kaohsiung Veterans General Hospital, Taiwan, ROC
| | - Yan-Chiou Ku
- Department of Nursing, Kaohsiung Veterans General Hospital, Taiwan, ROC.
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Hung MJ, Liu FS, Shen PS, Chen GD, Lin LY, Ho ESC. Analysis of two sling procedures using polypropylene mesh for treatment of stress urinary incontinence. Int J Gynaecol Obstet 2017; 84:133-41. [PMID: 14871515 DOI: 10.1016/s0020-7292(03)00345-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2003] [Revised: 07/21/2003] [Accepted: 07/30/2003] [Indexed: 11/18/2022]
Abstract
OBJECTIVES To evaluate and compare the surgical outcome between the innovative tension-free vaginal tape (TVT) and conventional pubovaginal sling (PVS) procedures using polypropylene mesh. METHODS Eighty consecutive women with urodynamic stress urinary incontinence (SUI), who chose to undergo either a TVT (n=23) or a PVS (n=57) procedure using polypropylene mesh based on financial consideration, were recruited for this study. The surgical results were analyzed and compared subjectively and objectively. RESULTS The mean follow-up interval was 23 months for the TVT and 20 months for the PVS procedure (P=0.062). Postoperatively, SUI (91.3% vs. 93.0%), concomitant urge symptoms (85.0% vs. 85.3%) and the negative impact of incontinence and urogenital distress on patients' quality of life (79.8% vs. 77.8%) (77.4% vs. 68.8%) had improved markedly. After a multivariable logistic regression analysis, the treatment outcome of SUI was found to be independent of the main effects of patient age, parity, concurrent gynecological surgeries, intrinsic sphincter deficiency, previous failed incontinence surgeries, and concomitant urge symptoms. However, it was significantly related to treatment procedures (TVT vs. PVS) and their interaction with patient body mass index (BMI). Based on the fitted logistic model, we see that TVT performs better than PVS when BMI is less than 27.27 kg/m2, and the advantage of TVT decreases as BMI increases. CONCLUSION Both TVT and PVS procedures using polypropylene mesh are effective treatment modalities for female SUI. However, TVT was not as effective in treating overweight or obese women as PVS.
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Affiliation(s)
- M J Hung
- Department of Obstetrics and Gynecology, Taichung Veterans General Hospital Taichung, Taiwan.
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31
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Lin LY, Wang RH. Patient Education Competence Scale for Registered Nurses in Taiwan: Scale development and psychometric validation. Jpn J Nurs Sci 2016; 14:117-125. [DOI: 10.1111/jjns.12141] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Revised: 05/05/2016] [Accepted: 05/13/2016] [Indexed: 11/27/2022]
Affiliation(s)
- Li-Ying Lin
- Department of Nursing, Kaohsiung Veterans General Hospital College of Nursing; Kaohsiung Medical University; Kaohsiung Taiwan
- College of Nursing; Kaohsiung Medical University; Kaohsiung Taiwan
| | - Ruey-Hsia Wang
- College of Nursing; Kaohsiung Medical University; Kaohsiung Taiwan
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Yu PF, Huang Y, Han YY, Lin LY, Sun WH, Rabson AB, Wang Y, Shi YF. TNFα-activated mesenchymal stromal cells promote breast cancer metastasis by recruiting CXCR2 + neutrophils. Oncogene 2016; 36:482-490. [PMID: 27375023 PMCID: PMC5290040 DOI: 10.1038/onc.2016.217] [Citation(s) in RCA: 155] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 04/18/2016] [Accepted: 05/11/2016] [Indexed: 12/13/2022]
Abstract
Mesenchymal stromal cells (MSCs) tend to infiltrate into tumors and form a major component of the tumor microenvironment. Our previous work demonstrated that tumor necrosis factor α (TNFα)-activated MSCs significantly promoted tumor growth. However, the role of TNFα-treated MSCs in tumor metastasis remains elusive. Employing a lung metastasis model of murine breast cancer, we found that TNFα-activated MSCs strikingly enhanced tumor metastasis compared with normal MSCs. We analyzed the chemokine profiles and found that the expression of CCL5, CCR2 and CXCR2 ligands were enhanced in TNFα-activated MSCs. Using genetic or pharmacological strategies to inhibit CCL5 or CCR2, we demonstrated that CCL5 and CCR2 ligands were indispensable in supporting TNFα-activated MSCs to promote tumor metastasis. Analysis of immune cells revealed that CXCR2 ligands (CXCL1, CXCL 2 and CXCL5) expressed by TNFα-activated MSCs efficiently recruited CXCR2+ neutrophils into tumor. These neutrophils were responsible for the pro-metastatic effect of MSCs since inhibition of this chemotaxis abolished increased neutrophil recruitment and tumor metastasis. The interaction between neutrophils and tumor cells resulted in markedly elevated metastasis-related genes by tumor cells, including CXCR4, CXCR7, MMP12, MMP13, IL-6 and TGFβ. Importantly, in IL8high human breast cancer samples, we also observed similar alterations of gene expression. Collectively, our findings demonstrate that TNFα-activated MSCs promote tumor metastasis via CXCR2+ neutrophil recruitment.
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Affiliation(s)
- P F Yu
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences/Shanghai Jiao Tong University School of Medicine, Chinese Academy of Sciences; University of Chinese Academy of Sciences, Shanghai, China
| | - Y Huang
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences/Shanghai Jiao Tong University School of Medicine, Chinese Academy of Sciences; University of Chinese Academy of Sciences, Shanghai, China
| | - Y Y Han
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences/Shanghai Jiao Tong University School of Medicine, Chinese Academy of Sciences; University of Chinese Academy of Sciences, Shanghai, China
| | - L Y Lin
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences/Shanghai Jiao Tong University School of Medicine, Chinese Academy of Sciences; University of Chinese Academy of Sciences, Shanghai, China
| | - W H Sun
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences/Shanghai Jiao Tong University School of Medicine, Chinese Academy of Sciences; University of Chinese Academy of Sciences, Shanghai, China
| | - A B Rabson
- Child Health Institute of New Jersey, Rutgers-Robert Wood Johnson Medical School, New Brunswick, NJ, USA
| | - Y Wang
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences/Shanghai Jiao Tong University School of Medicine, Chinese Academy of Sciences; University of Chinese Academy of Sciences, Shanghai, China
| | - Y F Shi
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences/Shanghai Jiao Tong University School of Medicine, Chinese Academy of Sciences; University of Chinese Academy of Sciences, Shanghai, China.,Child Health Institute of New Jersey, Rutgers-Robert Wood Johnson Medical School, New Brunswick, NJ, USA.,The First Affiliated Hospital of Soochow University, Institutes for Translational Medicine, Soochow University, Suzhou, China
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Hsieh CT, Chang CJ, Su IC, Lin LY. Clinical experiences of dynamic stabilizers: Dynesys and Dynesys top loading system for lumbar spine degenerative disease. Kaohsiung J Med Sci 2016; 32:207-15. [PMID: 27185604 DOI: 10.1016/j.kjms.2016.03.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 03/09/2016] [Accepted: 03/21/2016] [Indexed: 12/16/2022] Open
Abstract
Dynesys (Dynamic Neutralization System) was designed to overcome the shortcomings of fusion. The Dynesys top loading (DTL) system is a new alternative Dynesys system that can be applied via a minimally invasive procedure. This study aimed to ascertain whether DTL is a suitable device for motion preservation and prevention of instability, and to compare the clinical and radiological outcomes between DTL and Dynesys. In this study, 12 patients were treated with Dynesys and 21 patients were treated with DTL. Back and leg pain were evaluated using the visual analog scale. The Oswestry Disability Index was used to evaluate the patients' function. Range of motion (ROM) at the operative level and for the whole lumbar spine was measured pre- and postoperatively. The length of wound, blood loss, length of hospital stay, and operation duration were also compared. All patients were followed up for 12-76 months. Scores on the visual analog scale and Oswestry Disability Index were significantly improved postoperatively. The median ROM of the whole spine and index level ROM in all patients showed 12.5% and 79.6% loss, respectively. The DTL group exhibited significantly better results in terms of blood loss, wound length, and operation duration, in addition to early ambulation. In conclusion, Dynesys and DTL are semirigid fixation systems that can significantly improve clinical symptoms and signs. Our results suggested that DTL was better than Dynesys as a result of it being a minimally invasive procedure. However, further study with large sample sizes and longer follow-up durations is required to validate the effects of these dynamic stabilizers.
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Affiliation(s)
- Cheng-Ta Hsieh
- Department of Neurosurgery, Cathay General Hospital, Taipei City, Taiwan; Department of Medicine, School of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan
| | - Chih-Ju Chang
- Department of Neurosurgery, Cathay General Hospital, Taipei City, Taiwan; Department of Medicine, School of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan.
| | - I-Chang Su
- Department of Neurosurgery, Cathay General Hospital, Taipei City, Taiwan; Department of Medicine, School of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan
| | - Li-Ying Lin
- Department of Surgery, Cathay General Hospital, Taipei City, Taiwan
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Liu J, Zeng T, Su G, Lin LY, Zhao Y, Yang WQ, Xie WX, Zhao ZG, Li GM. The dissemination mode of drug-resistant genes in Enterobacter cloacae. Indian J Med Microbiol 2015; 33 Suppl:87-92. [PMID: 25657163 DOI: 10.4103/0255-0857.150899] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Enterobacter cloacae (E. cloacae) infection has the highest mortality rate among Enterobacter infections. This study aimed to determine the prevalence and the transmission route of the class I integron, qnr genes, and CTX-M ESBLs genes in clinical isolates and to analyse the association between the prevalence of MDR genes and the antibiotic resistance of E. cloacae. MATERIALS AND METHODS The antibiotic susceptibility was tested the agar dilution method. The class I integron, qnr genes, and CTX-M ESBLs genes were detected by polymerase chain reaction (PCR). The prevalence data were analysed with the Chi-square test. RESULTS In the 100 clinical isolates, the class I integron-positive rate was 65%, with 12% on chromosome, 15% on plasmids and 38% on both. The positive rate of qnr genes was 37% with plasmid location. The positive rates for qnrA, qnrB and qnrS were 6%, 23% and 8%, respectively. The CTX-M ESBLs-positive rate was 34%. For CTX-M-1 ESBLs, 15% were on chromosome, 6% on plasmids and 4% on both; for CTX-M-9 ESBLs, 1% was on chromosome and 7% on plasmid; for CTX-M-25 ESBLs, 3% were on chromosome and 1% on plasmid. CONCLUSION Antibiotic resistance genes may be horizontally and vertically disseminated among E. cloacae, which helps multidrug-resistant (MDR) strains of E. cloacae to be successful nosocomial agents.
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Affiliation(s)
| | | | | | | | | | | | | | - Z G Zhao
- Department of Microbiology and Immunology, Guangdong Medical College, Zhanjiang, China
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Chang CC, Lin LY, Zou XW, Huang CC, Chan NL. Structural basis of the mercury(II)-mediated conformational switching of the dual-function transcriptional regulator MerR. Nucleic Acids Res 2015; 43:7612-23. [PMID: 26150423 PMCID: PMC4551924 DOI: 10.1093/nar/gkv681] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [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: 02/16/2015] [Accepted: 06/22/2015] [Indexed: 11/13/2022] Open
Abstract
The mer operon confers bacterial resistance to inorganic mercury (Hg(2+)) and organomercurials by encoding proteins involved in sensing, transport and detoxification of these cytotoxic agents. Expression of the mer operon is under tight control by the dual-function transcriptional regulator MerR. The metal-free, apo MerR binds to the mer operator/promoter region as a repressor to block transcription initiation, but is converted into an activator upon Hg(2+)-binding. To understand how MerR interacts with Hg(2+) and how Hg(2+)-binding modulates MerR function, we report here the crystal structures of apo and Hg(2+)-bound MerR from Bacillus megaterium, corresponding respectively to the repressor and activator conformation of MerR. To our knowledge, the apo-MerR structure represents the first visualization of a MerR family member in its intact and inducer-free form. And the Hg(2+)-MerR structure offers the first view of a triligated Hg(2+)-thiolate center in a metalloprotein, confirming that MerR binds Hg(2+) via trigonal planar coordination geometry. Structural comparison revealed the conformational transition of MerR is coupled to the assembly/disassembly of a buried Hg(2+) binding site, thereby providing a structural basis for the Hg(2+)-mediated functional switching of MerR. The pronounced Hg(2+)-induced repositioning of the MerR DNA-binding domains suggests a plausible mechanism for the transcriptional regulation of the mer operon.
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Affiliation(s)
- Chih-Chiang Chang
- Institute of Biochemistry and Molecular Biology, College of Medicine, National Taiwan University, Taipei 100, Taiwan
| | - Li-Ying Lin
- Institute of Biochemistry and Molecular Biology, College of Medicine, National Taiwan University, Taipei 100, Taiwan
| | - Xiao-Wei Zou
- Institute of Biochemistry and Molecular Biology, College of Medicine, National Taiwan University, Taipei 100, Taiwan Institute of Biochemistry, College of Life Sciences, National Chung Hsing University, Taichung 402, Taiwan
| | - Chieh-Chen Huang
- Department of Life Sciences, National Chung Hsing University, Taichung 402, Taiwan Agricultural Biotechnology Centre, National Chung Hsing University, Taichung 402, Taiwan
| | - Nei-Li Chan
- Institute of Biochemistry and Molecular Biology, College of Medicine, National Taiwan University, Taipei 100, Taiwan Institute of Biochemistry, College of Life Sciences, National Chung Hsing University, Taichung 402, Taiwan Agricultural Biotechnology Centre, National Chung Hsing University, Taichung 402, Taiwan
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Abstract
This study examined the effects of a neck stretching exercise intervention on nurses' primary headaches. Using a pretest and posttest two-group design, a total of 60 female staff nurses employed by a medical center in Taiwan were selected by convenience sampling. Participants in the experimental group (N=30) practiced neck stretching exercises while experiencing headaches. The participants in the control group (N=30) managed their headaches as usual. A structured questionnaire was used to collect data on headache intensity at baseline, and at 30 minutes and 1 hour after intervention. Decrease in headache intensity of the experimental group was significantly larger than that of the control group. Neck stretching exercises is an effective method for treating primary headaches.
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Affiliation(s)
- Li-Ying Lin
- Kaohsiung Veterans General Hospital Kaohsiung Medical University
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Wu J, Lin LY, Yang J, Chen XF, Ge JY, Wu JR, Sun WB. Multiple idiopathic cervical root resorption: a case report. Int Endod J 2015; 49:189-202. [PMID: 25688929 DOI: 10.1111/iej.12440] [Citation(s) in RCA: 18] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Accepted: 05/11/2014] [Indexed: 11/28/2022]
Abstract
AIM To report a severe and rare case of multiple idiopathic cervical root resorption (MICRR) in an adult female. SUMMARY A healthy 27-year-old Chinese female, with no significant associated factors, presented with MICRR. Resorption progressed quickly and lesions varied in severity, involving 29 teeth and leading to the loss of 23 teeth over a period of only 3 years. The inner surface of the crown showed extensive areas with worm-eaten lacunar resorption, and the resorptive lesions had abundant lysosomes throughout their cytoplasm. Further, heavy deposits of reaction products were shown in variously sized lysosomes.
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Affiliation(s)
- J Wu
- Department of Periodontology, Hospital of Stomatology, Medical School, Nanjing University, Nanjing, Jiangsu Province, China
| | - L Y Lin
- Department of Stomatology, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, Fujian Province, China
| | - J Yang
- Department of Periodontology, Hospital of Stomatology, Medical School, Nanjing University, Nanjing, Jiangsu Province, China
| | - X F Chen
- Department of Periodontology, Hospital of Stomatology, Medical School, Nanjing University, Nanjing, Jiangsu Province, China
| | - J Y Ge
- Department of Endodontics, Hospital of Stomatology, Medical School, Nanjing University, Nanjing, Jiangsu Province, China
| | - J R Wu
- Department of Pathology, Nanjing Jinling Hospital, Nanjing University School of Medicine, Nanjing, Jiangsu Province, China
| | - W B Sun
- Department of Periodontology, Hospital of Stomatology, Medical School, Nanjing University, Nanjing, Jiangsu Province, China
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Lin LY, Lee JJ, Liu CCH, Chen MT. Tissue expansion in the management of Klippel–Trénaunay syndrome in pediatric patients. Formosan Journal of Surgery 2015. [DOI: 10.1016/j.fjs.2014.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Cui QQ, Chen YC, Han XJ, Zhan ZY, Lin LY, Si LL, Wang YD. Expression analysis of VfDGAT2 in various tissues of the tung tree and in transgenic yeast. Genet Mol Res 2013; 12:6554-64. [PMID: 24391002 DOI: 10.4238/2013.december.11.7] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The tung tree (Vernicia fordii Hemsl.; Vf) has great potential as an industrial crop owning to its seed oil that has multiple uses. Diacylglycerol acyltransferases (DGATs) catalyze the last and most committed step of triacylglycerol (TAG) biosynthesis. In order to examine the physiological role of the VfDGAT2 gene in the tung tree, we characterized its expression profiles in different tung tissues/organs and seeds at different developmental stages. Oil content and α-eleostearic acid production during seed development were also examined. Expression studies showed that VfDGAT2 was expressed in all tissues tested, with the highest expression in developing seeds where the expression was about 19-fold more than that in leaves. VfDGAT2 showed temporal-specific expression during seed development and maturation. Notably, the expression of VfDGAT2 in developing seeds was found to be consistent with tung oil accumulation and α-eleostearic acid production. The expression level of VfDGAT2 was lower in the early stages of oil accumulation and α-eleostearic acid biosynthesis, rapidly increased during the peak periods of fatty acid synthesis in August, and then decreased during completion of the accumulation period at the end of September. When the VfDGAT2 gene was transferred to the oleaginous yeast Rhodotorula glutinis, its expression was detected along with fatty acid products. The results showed that VfDGAT2 was highly expressed in transgenic yeast clones, and the total fatty acid content in one of these clones, VfDGAT2-3, was 7.8-fold more than that in the control, indicating that VfDGAT2 contributed to fatty acid accumulation into TAG and might be a target gene for improving tung oil composition through genetic engineering.
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Affiliation(s)
- Q Q Cui
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing, China
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Yan XL, Lin LY, Liao XY, Zhang WB, Wen Y. Arsenic stabilization by zero-valent iron, bauxite residue, and zeolite at a contaminated site planting Panax notoginseng. Chemosphere 2013; 93:661-667. [PMID: 23871591 DOI: 10.1016/j.chemosphere.2013.05.083] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2013] [Revised: 05/16/2013] [Accepted: 05/17/2013] [Indexed: 06/02/2023]
Abstract
Panax notoginseng (Burk.) F.H. Chen, a rare traditional Chinese medicinal herb, is a widely used phytomedicine used all over the world. In recent years, the arsenic contamination of the herb and its relative products becomes a serious problem due to elevated soil As concentration. This study aimed to evaluate the effects of different types and dosages of amendments on As stabilization in soil and its uptake by P. notoginseng. Results showed that comparing to control treatment, the As concentrations of P. notoginseng declined by 49-63%, 43-61% and 52-66% in 0.25% zero-valent iron (Fe(0)), 0.5% bauxite residue, and 1% zeolite treatment, respectively; whereas the biomasses were elevated by 62-116%, 45-152% and 114-265%, respectively. The As(III) proportions of P. notoginseng increased by 8%, 9%, and 8%, and the transfer factors of As from root to shoot increased by 37%, 42% and 84% in the optimal treatments of Fe(0), bauxite residue, and zeolite. For soil As, all the three amendments could transform the non-specifically adsorbed As fraction to hydrous oxides Fe/Al fractions (by Fe(0) and red mud) or specifically adsorbed As fraction (by zeolite), therefore reduced the bioavailability of soil As. With a comprehensive consideration of stabilization efficiency, plant growth, environmental influence, and cost, Fe(0) appeared to be the best amendment, and zeolite could also be a good choice. In conclusion, this study was of significance in developing As contamination control in P. notoginseng planting areas, and even other areas for medicinal herb growing.
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Affiliation(s)
- X L Yan
- Lab of Land Contamination Assessment and Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Science (CAS), Beijing 100101, China.
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Lin LY, Wong JU. Images in clinical medicine. Meconium-like ileus in cystic fibrosis. N Engl J Med 2012; 366:2017. [PMID: 22621629 DOI: 10.1056/nejmicm1112678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Yan XL, Lin LY, Liao XY, Zhang WB. Arsenic accumulation and resistance mechanism in Panax notoginseng, a traditional rare medicinal herb. Chemosphere 2012; 87:31-6. [PMID: 22189375 DOI: 10.1016/j.chemosphere.2011.11.049] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2011] [Revised: 11/19/2011] [Accepted: 11/22/2011] [Indexed: 05/16/2023]
Abstract
Panax notoginseng, a traditional rare Chinese medicinal herb, was recently found to bring health risk to consumers, mainly because soil in its major plantation area was contaminated by arsenic (As). We investigated the effect of soil As pollution on the growth and As uptake of pot-cultured P. notoginseng, and the associated mechanisms of As stressed response. Results showed that, comparing with P. notoginseng growing in a low-As soil, the root, stem, and leaf biomasses of those growing in a high-As soil significantly reduced by 0.75, 0.09 and 0.21 g seedling(-1), respectively. Arsenic concentrations in roots, stems and leaves of the seedlings growing in high-As soil were 22, 15 and 3 times higher than those growing in low-As soil, respectively. Regardless of the soil As concentration, As existed in plants mainly as As(III), suggesting that the reduction of As(V) is a key step in As metabolism. Arsenic was distributed primarily in cell walls (51.7% for plants growing in the low-As soil, and 51.5% in the high-As soil), followed by cytoplasm supernatant, with cell organelles containing the least As. Compared with plants growing in the low-As soil, those in the high-As soil had increased superoxide dismutase and peroxidase activities in their roots, stems, and leaves, which would be associate with improving the resistance of P. notoginseng to As stress. The results suggest that there exists some special mechanisms of As-tolerance in P. notoginseng and the study is of significance in developing measures to reduce As in the herb.
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Affiliation(s)
- X L Yan
- Beijing Key Lab of Industrial Land Contamination and Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Science, Beijing 100101, China.
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Abstract
The study was to determine the seroprevalence of toxoplasmosis in the sera of pregnant women in central Taiwan and to investigate the levels of cytokine in the sera of pregnant women with Toxoplasma gondii infection. The 220 blood samples were collected from pregnant women. The haematological parameters of peripheral blood were analysed by a haematology analyser. Serum samples of the pregnant women were analysed by a commercially available anti-T. gondii IgM/IgG antibody enzyme-linked immunosorbent assay (ELISA) kit and FlowCytomix assays. Six (2.7%) of the sera samples had IgM anti-T. gondii antibodies, and twenty (9.1%) had T. gondii IgG seropositive. All six IgM seropositive samples had low IgG avidity, indicative of acute infection. Total white blood cells and eosinophils were statistically significantly increased (p<0.05) in pregnant women with T. gondii infection, as compared with healthy pregnant women. Th1 cytokines IFN-γ, IL-1β, IL-2 and IL-12 p70, and Th2 cytokines IL-10 in pregnant women with T. gondii IgM/IgG seropositive were significantly increased (p<0.05), as compared with healthy pregnant women. These results showed that both of Th1 and Th2 cytokines play an important role in the toxoplasmosis of pregnant women.
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Affiliation(s)
- C S Chou
- Institute of Medicine, Chung San Medical University, Taichung 402, Taiwan
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Wu CC, Li TK, Farh L, Lin LY, Lin TS, Yu YJ, Yen TJ, Chiang CW, Chan NL. Structural basis of type II topoisomerase inhibition by the anticancer drug etoposide. Science 2011; 333:459-62. [PMID: 21778401 DOI: 10.1126/science.1204117] [Citation(s) in RCA: 349] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Type II topoisomerases (TOP2s) resolve the topological problems of DNA by transiently cleaving both strands of a DNA duplex to form a cleavage complex through which another DNA segment can be transported. Several widely prescribed anticancer drugs increase the population of TOP2 cleavage complex, which leads to TOP2-mediated chromosome DNA breakage and death of cancer cells. We present the crystal structure of a large fragment of human TOP2β complexed to DNA and to the anticancer drug etoposide to reveal structural details of drug-induced stabilization of a cleavage complex. The interplay between the protein, the DNA, and the drug explains the structure-activity relations of etoposide derivatives and the molecular basis of drug-resistant mutations. The analysis of protein-drug interactions provides information applicable for developing an isoform-specific TOP2-targeting strategy.
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Affiliation(s)
- Chyuan-Chuan Wu
- Institute of Biochemistry and Molecular Biology, College of Medicine, National Taiwan University, Taipei City 100, Taiwan
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Lin LY, Wong VWS, Zhou HJ, Chan HY, Gui HL, Guo SM, Wang H, Huang L, Bao SS, Xie Q, Chan HLY. Relationship between serum hepatitis B virus DNA and surface antigen with covalently closed circular DNA in HBeAg-negative patients. J Med Virol 2010; 82:1494-500. [PMID: 20648602 DOI: 10.1002/jmv.21863] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Hepatitis B virus (HBV) covalently closed circular DNA (cccDNA) is responsible for viral persistence. This study aimed to investigate the serum surrogate markers for cccDNA and to evaluate the intrahepatic viral events associated with disease activity in HBeAg-negative chronic hepatitis B patients. Thirty-three treatment-naïve patients with a negative HBeAg who had a liver biopsy were studied. Active disease was defined as a serum alanine aminotransferase >40 IU/L and a serum HBV DNA >10,000 copies/ml. This study showed significant correlation between serum HBV DNA and both log cccDNA (r = 0.41, P = 0.018) and log total intrahepatic HBV DNA (r = 0.71, P < 0.0001). No significant correlation was observed between serum HBsAg and log cccDNA (P = 0.15) or log total intrahepatic HBV DNA (P = 0.97). Fourteen and 19 patients had inactive and active disease, respectively. The median log cccDNA and log total intrahepatic HBV DNA (copies/10(6) cells) were significantly higher in patients with active disease compared with those with inactive disease (4.11 vs. 3.53, P = 0.03 and 5.46 vs. 4.64, P < 0.001, respectively). The HBV replicative efficiency, defined as the ratio of serum HBV DNA to cccDNA, was approximately 20% higher in patients with active disease. No significant difference was observed in the HBsAg levels and the ratio of serum HBsAg to cccDNA between the two groups. In conclusion, serum HBV DNA, but not HBsAg, reflects the amount of cccDNA and the replication efficiency of HBV in patients with HBeAg-negative chronic hepatitis B.
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Affiliation(s)
- L Y Lin
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
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Gui HL, Wang H, Yang YH, Wu YW, Zhou HJ, Guo SM, Lin LY, Wang L, Cai W, Chen R, Guo Q, Zhou XQ, Bao SS, Xie Q. Significant histopathology in Chinese chronic hepatitis B patients with persistently high-normal alanine aminotransferase. J Viral Hepat 2010; 17 Suppl 1:44-50. [PMID: 20586933 DOI: 10.1111/j.1365-2893.2010.01270.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Current guidelines recommend antiviral therapy for chronic hepatitis B (CHB) patients with elevated alanine aminotransferase (ALT) and high viral load. Scant histological data exist for CHB patients with persistently normal ALT (PNALT) because disease progression is thought to be rare. To identify potential predictors of significant histology in the presence of PNALT, we compared the clinical characteristics and histology of Chinese CHB PNALT patients to those in patients with elevated ALT. Percutaneous liver biopsy was performed in 522 CHB patients with Chinese ethnicity who had not had antiviral treatment. Differences in age, ALT, viral load, hepatitis B e antigen (HBeAg) status and liver histology were compared between eligible PNALT (252) and elevated ALT (270) patients. Of the PNALT patients, 38.5% had normal liver histology, 25.4% had significant necroinflammation and/or fibrosis and 8.4% had established cirrhosis. Furthermore, histopathological differences between patients with high-normal ALT (0.5-1.0 x the upper limit of normal (ULN)) and low-normal ALT (≤ 0.5 x ULN) were evaluated. There was a significantly greater prevalence of histopathology in the high-normal group (40.0%) than in the low-normal group (16.6%) (P < 0.001). Multiple logistic regression identified that significant histopathology findings in PNALT patients correlated with age (P < 0.001) and ALT level (P < 0.001), with age >40 years and ALT >0.5 x ULN predicting significant histopathology. Our data indicate that liver biopsy is recommended in CHB patients >40 years of age, particularly when their ALT is 0.5-1.0 x ULN. The findings above provide evidence for indication of antiviral therapy in patients with PNALT and significant histopathological change.
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Affiliation(s)
- H L Gui
- Department of Infectious Diseases, Ruijin Hospital, Jiaotong University School of Medicine, Shanghai, China
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Batchelder AJ, Rodrigues CMC, Lin LY, Hickey PM, Johnson C, Elias JE. The role of students as teachers: four years' experience of a large-scale, peer-led programme. Med Teach 2010; 32:547-551. [PMID: 20653375 DOI: 10.3109/0142159x.2010.490861] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
AIM This study set out to explore whether a teaching programme developed and delivered by medical students yielded an improvement of attendees' examination performance or their experience of preparing for the target assessment. METHODS Over 4 years all students were invited to consent to use of their official examination data. Students were ranked for baseline performance and again for performance in the target assessment. Change in rank was compared for attendees and non-attenders. Additionally, a questionnaire was distributed to students before and after the peer-led programme. Attendees' responses were compared to those of non-attenders. RESULTS No statistically significant difference in change in rank was observed between the two groups on evaluation of quantitative performance data. The majority of students (81.0%) scored the programme four or five in terms of perceived usefulness on a five-point Likert scale. Attendees reported statistically significant increases in preparedness for the examination (p=0.001) and in familiarity with the style of examination questions (p=0.004) compared to students who did not attend. CONCLUSION This study suggests that teaching from peers may improve students' perception of their preparedness for official assessments. However, such interventions may be limited in their ability to produce a demonstrable benefit in terms of examination performance.
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Affiliation(s)
- Andrew J Batchelder
- Department of Medical and Social Care Education, University of Leicester, Leicester, UK.
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Yang CH, Chen HL, Chen CP, Liao SH, Hsiao HA, Chuang YY, Hsu HS, Wang TL, Shieh YT, Lin LY, Tsai YC. Electrochemical polymerization effects of triphenylamine-based dye on TiO2 photoelectrodes in dye-sensitized solar cells. J Electroanal Chem (Lausanne) 2009. [DOI: 10.1016/j.jelechem.2009.03.010] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Chao CL, Lin YH, Lin LC, Lin LY, Tsai CT, Wang YC, Hwang JJ, Chen JC, Chiang FT. Efficacy and Safety of Valsartan/Hydrochlorothiazide Fixed-dose Combination Compared with Amlodipine Monotherapy as First-line Therapy for Mild to Moderate Hypertension. J Int Med Res 2009; 37:289-97. [DOI: 10.1177/147323000903700202] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
This double-blind, active- and randomized-controlled study compared the efficacy and safety of a fixed-dose combination of valsartan/hydrochlorothiazide 80 mg/12.5 mg once daily ( n = 32) with amlodipine monotherapy 5 mg once daily ( n = 33) for 8 weeks in patients with mild to moderate hypertension. Non-inferiority of valsartan/hydrochlorothiazide to amlodipine was demonstrated by comparable reductions in sitting systolic blood pressure (SBP), sitting diastolic blood pressure (DBP), and daytime, night-time and 24-h SBP and DBP on ambulatory blood pressure monitoring. Between-group comparisons of adverse events and changes in laboratory parameters did not reach statistical significance, except for uric acid which showed a significant increase in the valsartan/hydrochlorothiazide group compared with the amlodipine group, but was still below the laboratory's upper limit of normal. In conclusion, the use of the fixed-dose combination of valsartan/hydrochlorothiazide 80 mg/12.5 mg once daily as a starting regimen in patients with mild to moderate hypertension was shown to have non-inferior efficacy and comparable safety for daily practice compared with amlodipine 5 mg once daily monotherapy.
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Affiliation(s)
- CL Chao
- Division of Cardiology, Department of Internal Medicine, Taoyuan General Hospital, Department of Health, Executive Yuan, Taoyuan, Taiwan
- Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - YH Lin
- Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - LC Lin
- Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - LY Lin
- Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - CT Tsai
- Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - YC Wang
- Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - JJ Hwang
- Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - JC Chen
- Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - FT Chiang
- Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
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Abstract
We report a new demonstration of nanoscale solution-processed photodetectors by fabricating a nano-sized gap between two electrodes and drop-casting nanocrystal quantum dots (NCQDs) into the gap. We demonstrate a detection sensitivity of 62 pW with a max responsivity of 2.7 mA/W over a device with a nano-gap of 25 nm. Additionally, we characterize the dependence of signal-to-dark current ratio and responsivity on nano-gap size. Responsivity ranges from 1 - 90 mA/W for a nano-gap size range of 25 nm - 1.5 nm. Our results represent the first demonstration of how near-field optical detection for sub-diffraction nanophotonic integrated circuits can be achieved in principle using NCQDs.
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