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Wu XT, Zheng YY, Ma SS, Ai SH, Zhou QW, Yang D, Ma C. Synthesis, optical properties, and application of novel chalcone skeleton as pH fluorescent probe: Based AIE + ESIPT strategy. Spectrochim Acta A Mol Biomol Spectrosc 2024; 314:124199. [PMID: 38555822 DOI: 10.1016/j.saa.2024.124199] [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: 11/16/2023] [Revised: 02/22/2024] [Accepted: 03/26/2024] [Indexed: 04/02/2024]
Abstract
A series of "turn off" pH fluorescence probes with chalcone skeleton for basic system have been developed. The molecules emitted bright yellow fluorescence under acidic condition, resulting AIE coupled ESIPT characteristic and ICT process. What's more, the compounds exhibited excellent sensitivity and selectivity for detecting pH as a facile "On-Off" fluorescence probe, and the fluorescence of them were quenched with the ESIPT process interrupted under alkaline condition. Theoretical calculation for the related compounds also performed to verify the electron effect on photophysical properties and confirm the rational speculation on the mechanism.
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Affiliation(s)
- Xiao-Tian Wu
- Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China
| | - Ying-Ying Zheng
- Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China
| | - Shan-Shan Ma
- Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China
| | - Shu-Heng Ai
- Key Laboratory of Functional Nanomaterials and Technology in Universities of Shandong, College of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, PR China
| | - Qi-Wang Zhou
- Key Laboratory of Functional Nanomaterials and Technology in Universities of Shandong, College of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, PR China
| | - Di Yang
- Key Laboratory of Functional Nanomaterials and Technology in Universities of Shandong, College of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, PR China.
| | - Chen Ma
- Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China.
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Li MX, Li YF, Xing X, Niu JQ, Yao L, Lu MY, Guo K, Ma MN, Wu XT, Ma N, Li D, Li ZJ, Guan L, Wang XM, Pan B, Shang WR, Ji J, Song ZY, Zhang ZM, Wang YF, Yang KH. Intravenous immunoglobulin for treatment of hospitalized COVID-19 patients: an evidence mapping and meta-analysis. Inflammopharmacology 2024; 32:335-354. [PMID: 38097885 DOI: 10.1007/s10787-023-01398-4] [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: 10/23/2023] [Accepted: 11/17/2023] [Indexed: 03/03/2024]
Abstract
BACKGROUND The clinical efficacy and safety of intravenous immunoglobulin (IVIg) treatment for COVID-19 remain controversial. This study aimed to map the current status and gaps of available evidence, and conduct a meta-analysis to further investigate the benefit of IVIg in COVID-19 patients. METHODS Electronic databases were searched for systematic reviews/meta-analyses (SR/MAs), primary studies with control groups, reporting on the use of IVIg in patients with COVID-19. A random-effects meta-analysis with subgroup analyses regarding study design and patient disease severity was performed. Our outcomes of interest determined by the evidence mapping, were mortality, length of hospitalization (days), length of intensive care unit (ICU) stay (days), number of patients requiring mechanical ventilation, and adverse events. RESULTS We included 34 studies (12 SR/MAs, 8 prospective and 14 retrospective studies). A total of 5571 hospitalized patients were involved in 22 primary studies. Random-effects meta-analyses of very low to moderate evidence showed that there was little or no difference between IVIg and standard care or placebo in reducing mortality (relative risk [RR] 0.91; 95% CI 0.78-1.06; risk difference [RD] 3.3% fewer), length of hospital (mean difference [MD] 0.37; 95% CI - 2.56, 3.31) and ICU (MD 0.36; 95% CI - 0.81, 1.53) stays, mechanical ventilation use (RR 0.92; 95% CI 0.68-1.24; RD 2.8% fewer), and adverse events (RR 0.98; 95% CI 0.84-1.14; RD 0.5% fewer) of patients with COVID-19. Sensitivity analysis using a fixed-effects model indicated that IVIg may reduce mortality (RR 0.76; 95% CI 0.60-0.97), and increase length of hospital stay (MD 0.68; 95% CI 0.09-1.28). CONCLUSION Very low to moderate certainty of evidence indicated IVIg may not improve the clinical outcomes of hospitalized patients with COVID-19. Given the discrepancy between the random- and fixed-effects model results, further large-scale and well-designed RCTs are warranted.
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Affiliation(s)
- Mei-Xuan Li
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
- Evidence-Based Social Science Research Center, Health Technology Assessment Center, School of Public Health, Lanzhou University, Lanzhou, China
- Key Laboratory of Evidence-Based Medicine and Knowledge Translation of Gansu Province, Lanzhou, China
- WHO Collaborating Centre for Guideline Implementation and Knowledge Translation, Lanzhou University, Lanzhou, China
| | - Yan-Fei Li
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
- Evidence-Based Social Science Research Center, Health Technology Assessment Center, School of Public Health, Lanzhou University, Lanzhou, China
- Key Laboratory of Evidence-Based Medicine and Knowledge Translation of Gansu Province, Lanzhou, China
- WHO Collaborating Centre for Guideline Implementation and Knowledge Translation, Lanzhou University, Lanzhou, China
| | - Xin Xing
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
- Evidence-Based Social Science Research Center, Health Technology Assessment Center, School of Public Health, Lanzhou University, Lanzhou, China
- Key Laboratory of Evidence-Based Medicine and Knowledge Translation of Gansu Province, Lanzhou, China
- WHO Collaborating Centre for Guideline Implementation and Knowledge Translation, Lanzhou University, Lanzhou, China
- School of Public Health, Gansu University of Chinese Medicine, Lanzhou, China
| | - Jun-Qiang Niu
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
- Evidence-Based Social Science Research Center, Health Technology Assessment Center, School of Public Health, Lanzhou University, Lanzhou, China
- Key Laboratory of Evidence-Based Medicine and Knowledge Translation of Gansu Province, Lanzhou, China
- WHO Collaborating Centre for Guideline Implementation and Knowledge Translation, Lanzhou University, Lanzhou, China
- Department of Traditional Chinese Medicine, The First Hospital of Lanzhou University, Lanzhou, China
| | - Liang Yao
- Department of Health Research Methods, Evidence, and Impact, Faculty of Health Sciences, McMaster University, Hamilton, Canada
| | - Meng-Ying Lu
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, China
| | - Ke Guo
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
- Evidence-Based Social Science Research Center, Health Technology Assessment Center, School of Public Health, Lanzhou University, Lanzhou, China
- Key Laboratory of Evidence-Based Medicine and Knowledge Translation of Gansu Province, Lanzhou, China
- WHO Collaborating Centre for Guideline Implementation and Knowledge Translation, Lanzhou University, Lanzhou, China
| | - Mi-Na Ma
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
- Evidence-Based Social Science Research Center, Health Technology Assessment Center, School of Public Health, Lanzhou University, Lanzhou, China
- Key Laboratory of Evidence-Based Medicine and Knowledge Translation of Gansu Province, Lanzhou, China
- WHO Collaborating Centre for Guideline Implementation and Knowledge Translation, Lanzhou University, Lanzhou, China
| | - Xiao-Tian Wu
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, China
| | - Ning Ma
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
- Evidence-Based Social Science Research Center, Health Technology Assessment Center, School of Public Health, Lanzhou University, Lanzhou, China
- Key Laboratory of Evidence-Based Medicine and Knowledge Translation of Gansu Province, Lanzhou, China
- WHO Collaborating Centre for Guideline Implementation and Knowledge Translation, Lanzhou University, Lanzhou, China
| | - Dan Li
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
- Evidence-Based Social Science Research Center, Health Technology Assessment Center, School of Public Health, Lanzhou University, Lanzhou, China
- Key Laboratory of Evidence-Based Medicine and Knowledge Translation of Gansu Province, Lanzhou, China
- WHO Collaborating Centre for Guideline Implementation and Knowledge Translation, Lanzhou University, Lanzhou, China
| | - Zi-Jun Li
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
- Evidence-Based Social Science Research Center, Health Technology Assessment Center, School of Public Health, Lanzhou University, Lanzhou, China
- Key Laboratory of Evidence-Based Medicine and Knowledge Translation of Gansu Province, Lanzhou, China
- WHO Collaborating Centre for Guideline Implementation and Knowledge Translation, Lanzhou University, Lanzhou, China
| | - Ling Guan
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
- School/Hospital of Stomatology, Lanzhou University, Lanzhou, China
| | - Xiao-Man Wang
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
- Evidence-Based Social Science Research Center, Health Technology Assessment Center, School of Public Health, Lanzhou University, Lanzhou, China
- Key Laboratory of Evidence-Based Medicine and Knowledge Translation of Gansu Province, Lanzhou, China
- WHO Collaborating Centre for Guideline Implementation and Knowledge Translation, Lanzhou University, Lanzhou, China
| | - Bei Pan
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
- Evidence-Based Social Science Research Center, Health Technology Assessment Center, School of Public Health, Lanzhou University, Lanzhou, China
- Key Laboratory of Evidence-Based Medicine and Knowledge Translation of Gansu Province, Lanzhou, China
- WHO Collaborating Centre for Guideline Implementation and Knowledge Translation, Lanzhou University, Lanzhou, China
| | - Wen-Ru Shang
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
- Evidence-Based Social Science Research Center, Health Technology Assessment Center, School of Public Health, Lanzhou University, Lanzhou, China
- Key Laboratory of Evidence-Based Medicine and Knowledge Translation of Gansu Province, Lanzhou, China
- WHO Collaborating Centre for Guideline Implementation and Knowledge Translation, Lanzhou University, Lanzhou, China
| | - Jing Ji
- Department of Rehabilitation, Gansu Provincial Hospital of Traditional Chinese Medicine, Lanzhou, China
| | - Zhong-Yang Song
- Affiliated Hospital of Gansu University of Chinese Medicine, Lanzhou, China
| | - Zhi-Ming Zhang
- Department of Rehabilitation, Gansu Provincial Hospital of Traditional Chinese Medicine, Lanzhou, China.
| | | | - Ke-Hu Yang
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China.
- Evidence-Based Social Science Research Center, Health Technology Assessment Center, School of Public Health, Lanzhou University, Lanzhou, China.
- Key Laboratory of Evidence-Based Medicine and Knowledge Translation of Gansu Province, Lanzhou, China.
- WHO Collaborating Centre for Guideline Implementation and Knowledge Translation, Lanzhou University, Lanzhou, China.
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Huang J, Huang ZT, Sun XC, Chen TT, Wu XT. Mental health status and related factors influencing healthcare workers during the COVID-19 pandemic: A systematic review and meta-analysis. PLoS One 2024; 19:e0289454. [PMID: 38241316 PMCID: PMC10798549 DOI: 10.1371/journal.pone.0289454] [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: 01/21/2024] Open
Abstract
BACKGROUND The mental health of healthcare workers during the coronavirus-2019 pandemic was seriously affected, and the risk of mental health problems was high. The present study sought to systematically evaluate the mental health problems of healthcare workers worldwide during the pandemic and to determine the latest global frequency of COVID-19 associated mental health problems. METHODS Data in the Cumulative Index to Nursing and Allied Health Literature (CINAHL), EMBASE, Elsevier, MEDLINE, PubMed, PsycINFO and the Web of Science before November 11, 2022, were systematically searched. Cohort, case-control and cross-sectional studies were included. The meta-analysis used a random effects model to synthesize the comprehensive prevalence rate of mental health problems. Subgroup analyses were performed based on time of data collection; whether the country was or was not developed; continent; doctors and nurses; doctors/nurses vs. other healthcare workers; and psychological evaluation scale. RESULTS A total of 161 studies were included, including 341,014 healthcare workers worldwide, with women accounting for 82.8%. Occupationally, 16.2% of the healthcare workers were doctors, 63.6% were nurses and 13.3% were other medical staff. During the pandemic, 47% (95% confidence interval [CI], 35-60%) of healthcare workers reported job burnout, 38% (95% CI, 35-41%) experienced anxiety, 34% (95% CI 30-38%) reported depression, 30% (95% CI, 29-31%) had acute stress disorder, and 26% (95% CI, 21-31%) had post-traumatic stress disorder. CONCLUSIONS The study found that there were common mental health problems among health care workers during the COVID-19 pandemic. The most common was job burnout, followed by anxiety, depression, acute stress and post-traumatic stress disorder. Although the global pandemic has been brought under control, its long-term impact on the mental health of healthcare workers cannot be ignored. Additional research is required to develop measures to prevent, monitor and treat psychological disorders among healthcare workers.
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Affiliation(s)
- Jia Huang
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Zhu-Tang Huang
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Xin-Ce Sun
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Ting-Ting Chen
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Xiao-Tian Wu
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
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Abstract
Objective To investigate the clinical features and evaluate the prognostic factors in
patients with bone metastases from non-small cell lung cancer (NSCLC). Methods We retrospectively investigated 356 patients with NSCLC with bone metastases
from January 2012 to December 2017. The overall survival (OS) and 1-year
survival rate were calculated by Kaplan–Meier analysis and compared by
univariate analysis using the log-rank test. Multivariate analysis was
performed using the Cox proportional hazards model. Results A total of 694 sites of bone metastases were determined among the 356
patients. The most common site of bone metastases was the ribs. The median
OS was 12.5 months and the 1-year survival was 50.8% in the overall
population. Univariate analysis revealed that histological type, number of
bone metastases, Eastern Cooperative Oncology Group performance status (ECOG
PS), bisphosphonate therapy, and serum calcium, lactate dehydrogenase, and
alkaline phosphatase were significantly correlated with prognosis.
Multivariate analysis identified multiple bone metastases, ECOG PS ≥2,
lactate dehydrogenase ≥225 U/L, and alkaline phosphatase ≥140 U/L as
independent negative prognostic factors. Conclusion Multiple bone metastases, high ECOG PS, and high serum alkaline phosphatase
and lactate dehydrogenase are independent negative prognostic factors for
bone metastases from NSCLC.
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Affiliation(s)
- Xiao-Tian Wu
- Department of Orthopedics, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jian-Wei Zhou
- Department of Oncology, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai, China
| | - Long-Ci Pan
- Department of Oncology, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai, China
| | - Ting Ge
- Department of Oncology, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai, China
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Abstract
A novel method for the synthesis of β-amino alcohols has been demonstrated under mild reaction conditions with a broad scope via a two-step Smiles rearrangement. What is more, theoretical calculations have been performed to confirm the rationality of the mechanism. The method has been proved to be notably effective for N-arylated amino alcohols, which are difficult to synthesize by traditional methods.
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Affiliation(s)
- Di Yang
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
| | - Cai-Xia Xie
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, P. R. China
| | - Xiao-Tian Wu
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
| | - Luo-Ran Fei
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
| | - Lei Feng
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
| | - Chen Ma
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
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Yang D, He XY, Wu XT, Shi HN, Miao JY, Zhao BX, Lin ZM. A novel mitochondria-targeted ratiometric fluorescent probe for endogenous sulfur dioxide derivatives as a cancer-detecting tool. J Mater Chem B 2020; 8:5722-5728. [PMID: 32514507 DOI: 10.1039/d0tb00149j] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A new mitochondria-targeted fluorescent probe RBC, constructed using a coumarin moiety which was selected as the donor and a benzothiazole derivative as the acceptor, for SO2 derivatives (HSO3-/SO32-) was presented. The probe designed on a new FRET platform showed high selectivity and a low detection limit. Importantly, the probe could respond to HSO3-/SO32- within 35 s. Furthermore, the probe could target mitochondria and was successfully used for fluorescence imaging of endogenous bisulfite in HepG2 with low cytotoxicity, which significantly assisted in cancer diagnosis.
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Affiliation(s)
- Di Yang
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China.
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Zhou YC, Zhou L, Feng CP, Wu XT, Bao RY, Liu ZY, Yang MB, Yang W. Direct modification of polyketone resin for anion exchange membrane of alkaline fuel cells. J Colloid Interface Sci 2019; 556:420-431. [PMID: 31472316 DOI: 10.1016/j.jcis.2019.08.086] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 08/21/2019] [Accepted: 08/24/2019] [Indexed: 12/01/2022]
Abstract
A kind of side-chain type anion exchange membranes (AEMs) with high ionic conductivity and good comprehensive stability was prepared via direct modification of commercial engineering plastic polyketone with diamines through Paal-Knorr reaction and quaternization reaction. It was found that the amount of diamine can effectively tune the microphase morphology and properties of the prepared quaternized functionalized-polyketone anion exchange membranes (QAFPK-AEMs). The tensile strength was increased from 18.6 MPa to 38.6 MPa, and the ion exchange capacity (IEC) was increased from 1.11 mmol/g to 2.71 mmol/g depending on the amount of added diamine. The QAFPK-1-6-AEM with the IEC of 1.43 mmol/g showed the highest hydroxide conductivity of 65 mS/cm at 25 °C and 96.8 mS/cm at 80 °C. The high ionic conductivity was achieved through the establishment of effective ionic channels, and it maintained 70% of the initial ionic conductivity after the 192 h treatment in 2 mol/L KOH (aq) at 80 °C. Moreover, a peak power density of 129 mW/cm2 was achieved when the assembled single cell with QAFPK-1-6-AEM was operated at 50 °C. Thus, the prepared QAFPK-AEMs showed great potential applications for the anion exchange membrane fuel cells (AEMFCs).
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Affiliation(s)
- Yi-Cun Zhou
- College of Polymer Science and Engineering, Sichuan University, State Key Laboratory of Polymer Materials Engineering, Chengdu 610065, Sichuan, People's Republic of China
| | - Ling Zhou
- College of Polymer Science and Engineering, Sichuan University, State Key Laboratory of Polymer Materials Engineering, Chengdu 610065, Sichuan, People's Republic of China
| | - Chang-Ping Feng
- College of Polymer Science and Engineering, Sichuan University, State Key Laboratory of Polymer Materials Engineering, Chengdu 610065, Sichuan, People's Republic of China
| | - Xiao-Tian Wu
- College of Polymer Science and Engineering, Sichuan University, State Key Laboratory of Polymer Materials Engineering, Chengdu 610065, Sichuan, People's Republic of China
| | - Rui-Ying Bao
- College of Polymer Science and Engineering, Sichuan University, State Key Laboratory of Polymer Materials Engineering, Chengdu 610065, Sichuan, People's Republic of China
| | - Zheng-Ying Liu
- College of Polymer Science and Engineering, Sichuan University, State Key Laboratory of Polymer Materials Engineering, Chengdu 610065, Sichuan, People's Republic of China
| | - Ming-Bo Yang
- College of Polymer Science and Engineering, Sichuan University, State Key Laboratory of Polymer Materials Engineering, Chengdu 610065, Sichuan, People's Republic of China
| | - Wei Yang
- College of Polymer Science and Engineering, Sichuan University, State Key Laboratory of Polymer Materials Engineering, Chengdu 610065, Sichuan, People's Republic of China.
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Zheng QY, Kuang MD, Li Y, Wu XT, Huang JY, Zhang CT, Liu HW, Lu WJ, Wang J, Chen YQ. [Establishment and evaluation of a new method for determining hemodynamics of pulmonary hypertension rats]. Zhonghua Jie He He Hu Xi Za Zhi 2018; 41:485-490. [PMID: 29886624 DOI: 10.3760/cma.j.issn.1001-0939.2018.06.010] [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: By evaluating the hemodynamic parameters such as cardiac output (CO), right ventricular pressure (RVP), pulmonary artery pressure (PAP) and total pulmonary resistance index (TPRI) in pulmonary hypertension rat model, we established a more comprehensive hemodynamic evaluation system, which objectively evaluated the severity of disease and exercise tolerance in rats with pulmonary hypertension. Methods: SD rats were randomly divided into a control group and a model group with 5 rats in each group. The model group was intraperitoneally injected with SU5416 (20 mg/kg) and placed in an oxygen chamber at a 10% oxygen concentration for 21 days and then placed in a normoxic environment for 14 days. After modeling, rats were anesthetized and mechanically ventilated. The operator cut the skin along the right paraxial line, detached and ligated the intercostal artery, and then cut off the 3 and 4 ribs, exposing the heart and freeing aortic root about 0.2 cm. The flowmeter probe was set in the dissected aortic segment, and real-time recording time, blood flow waveforms, cardiac output were calculated accordingly. Then the needle attached to the baroreceptor was inserted into the right ventricle and the system acquired the right ventricular time-pressure waveform. After the waveform stabilized for about 30 seconds, the end of the cannula was sent to the pulmonary artery trunk through the entrance of the pulmonary artery to record the time-pressure curve of the pulmonary artery. Results: RVSP, PASP, PADP and mPAP in the model group were significantly higher than those of the control group [ RVSP(23.4±5.4) mmHg, 1 mmHg=0.133 kPa vs (56.4±13.0) mmHg, PASP (22.8±4.4) mmHg vs (58.5±14.9) mmHg, PADP (9.7±1.9) mmHg vs (30.3±7.0) mmHg, mPAP (14.1±2.7) mmHg vs (41.9±8.0) mmHg, all P<0.05 ]. Compared with the control group, the cardiac index in the model group was significantly lower [ CI (0.54±0.08) ml·min(-1)·g(-1) vs (0.40±0.09) ml·min(-1)·g(-1,) P=0.02 ]. Furthermore, compared with the control group, pulmonary vascular resistance index was significantly increased in the model group[PVRI (0.27±0.03) mmHg·ml(-1)·min(-1)·kg(-1) vs (0.06±0.01) mmHg·ml(-1)·min(-1)·kg(-1,) P<0.05]. The pathological results also showed that the middle part of pulmonary arterioles in the model group had muscular hypertrophy and muscular pulmonary arterioles, and even plexiform lesions. Conclusion: In this study, we established a new method that simultaneously determined several hemodynamic parameters such as RVSP, PASP, PADP, CO, CI and PVRI, which provided a more comprehensive assessment of hemodynamic changes in pulmonary hypertension rat models.
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Affiliation(s)
- Q Y Zheng
- Guangzhou Institute of Respiratory Diseases, State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital, Guangzhou Medical University, Guangzhou 510120, China
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Wu XT, Kuang MD, Ouyang X, Li Y, Yuan MM, Lu WJ, Wang J, Chen YQ. [Method for recording tension changes of small pulmonary artery and vein using the isolated vessel tension measurement system]. Zhonghua Jie He He Hu Xi Za Zhi 2017; 40:931-935. [PMID: 29224304 DOI: 10.3760/cma.j.issn.1001-0939.2017.12.013] [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: 06/07/2023]
Abstract
Objective: To establish a standardized method for isolated pulmonary artery and vein rings with different diameter, pressure and length, which could provide a more scientific method for in vitro study of pulmonary vessel diseases. Methods: Male SD rats were anesthetized, and the right ventricular systolic pressure were measured. Small pulmonary artery and vein rings with 200-400 μm in diameter and 2 mm in length were prepared by dissecting pulmonary arteries and veins. The pulmonary vessel rings were mounted in the organ bath by 2 stainless steel wires with diameter of 40 μm. Then the internal circumference of the vessel rings was increased gradually with 100 μm per step. At the same time the vascular tension was recorded by the Myograph System and Acknowledgement data acquisition system, and subsequently the passive length-tension exponential curve was made. The initial tension of the rings was set, equilibrated for another 30 min, and then stimulated with 60 mmol/L KCl 3 times, and the best contractile reactivity was achieved. The contractile reactivity of pulmonary artery rings and endothelial integrity were detected by exposure to 1 μmol/L phenylephrine(PE) and 10 μmol/L acetylcholine(Ach), while the contractile reactivity of pulmonary vein rings was detected by exposure to 1 μmol/L U46619 and 10 μmol/L papaverine. Results: The contraction and relaxation effects of the pulmonary artery rings reached 0.39 mg and 92% when they were stimulated by 1 μmol/L PE and 10 μmol/L Ach. The contraction and relaxation effects of pulmonary vein rings were up to 0.13 mg and 84% when they were exposed to 1 μmol/L U46619 and 10 μmol/L papaverine, respectively. Conclusion: Pulmonary artery and vein rings with appropriate basal tension and optimal vasodilator activity were prepared, and a standardized method of tension experiment for isolated pulmonary artery and vein rings established.
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Affiliation(s)
- X T Wu
- Guangzhou Institute of Respiratory Diseases, State Key Laboratory of Respiratory Diseases, the First Affiliated Hospital, Guangzhou Medical University, Guangzhou 510120, China
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Abstract
Objective To evaluate the clinical application of the minimally invasive modified pedicle screw–rod fixator for unstable pelvic ring injuries, including its feasibility, merits, and limitations. Methods Twenty-three patients (13 males, 10 females; average age, 36.3 years) with unstable pelvic ring injuries underwent anterior fixation using a modified pedicle screw–rod fixator with or without posterior fixation using a transiliac internal fixator. The clinical findings were assessed using Majeed scores. The quality of reduction was evaluated using the Matta criteria. Results Clinical results at 1 year postoperatively were excellent in 14 patients, good in 7, and fair in 2. The two patients with fair results had intermittent pain at the sacroiliac joint because of the posterior implant. One woman complained of persistent pain at the pubic tubercle during sexual intercourse. Iatrogenic neuropraxia of the unilateral lateral femoral cutaneous nerve occurred in three patients. Unilateral femoral nerve palsy occurred in one patient. The quality of fracture reduction was excellent in 12 patients, good in 8, and fair in 3. Heterotopic ossification occurred in eight patients; all were asymptomatic. Conclusions Minimally invasive modified pedicle screw-rod fixation is an effective alternative treatment for pelvic ring injuries.
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Affiliation(s)
- Xiao-Tian Wu
- Department of Orthopaedics, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai, China
| | - Zuo-Qing Liu
- Department of Orthopaedics, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai, China
| | - Wen-Qin Fu
- Department of Orthopaedics, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai, China
| | - Shan Zhao
- Department of Orthopaedics, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai, China
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Wu XT, Hong PW, Suolang DJ, Zhou D, Stefan H. Drug-induced hypersensitivity syndrome caused by valproic acid as a monotherapy for epilepsy: First case report in Asian population. Epilepsy Behav Case Rep 2017; 8:108-110. [PMID: 29204346 PMCID: PMC5707210 DOI: 10.1016/j.ebcr.2017.06.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 05/23/2017] [Accepted: 06/07/2017] [Indexed: 02/05/2023]
Abstract
Valproic acid (VPA) is a broad-spectrum antiseizure drug used for a variety of clinical conditions, such as epilepsy and mood disorders. Drug-induced hypersensitivity syndrome (DRESS) accompanied by hyponatremia, thrombocytopenia, hypoalbuminemia and elevated aminotransferase has never been reported as an adverse effect of VPA monotherapy during titration for epilepsy in Asian population. Hereby, we present the case of a 73-year-old Chinese male who suffered from DRESS and other complications two weeks after initiating VPA treatment for epilepsy. Understanding the risk associated with VPA-induced DRESS, and taking effective measures to avoid the severe side effects are necessary.
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Key Words
- AHS, acute hypersensitivity syndrome
- ASDs, antiseizure drugs
- Antiseizure drugs
- CBZ, carbamazepine
- Cutaneous adverse drug reactions
- DRESS, drug-induced hypersensitivity syndrome
- Drug-induced hypersensitivity syndrome (DRESS)
- ECG, electrocardiogram
- HLA, human leukocyte antigen
- LEV, levetiracetam
- LTG, lamotrigine
- MDH, multiple drug hypersensitivity
- PHT, phenytoin
- SCARs, severe cutaneous adverse drug reactions
- SJS/TEN, Stevens-Johnson syndrome/toxic epidermal necrolysis
- Skin rash
- VGB, vigabatrine
- VPA, valproic acid
- Valproate acid
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Affiliation(s)
- X T Wu
- Department of Neurology, West China Hospital, Sichuan University, China
| | - P W Hong
- Department of Neurology, West China Hospital, Sichuan University, China
| | - D J Suolang
- Department of Neurology, West China Hospital, Sichuan University, China
| | - D Zhou
- Department of Neurology, West China Hospital, Sichuan University, China
| | - H Stefan
- Department of Neurology - Biomagnetism, University Hospital Erlangen, Germany
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Wu XT, Chen N, Pan FG, Liu ZQ, He XJ. [Therapeutic observation of subcutaneous pedicle screw-rod system with modified placement for Tile B pelvic fractures]. Zhongguo Gu Shang 2017; 30:208-212. [PMID: 29349956 DOI: 10.3969/j.issn.1003-0034.2017.03.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 06/19/2016] [Indexed: 11/18/2022]
Abstract
OBJECTIVE To investigate the feasibility and therapeutic effect of subcutaneous pedicle screw-rod system with modified placement in treatment of Tile B pelvic fractures. METHODS From June 2014 to August 2015, 14 patients with Tile B pelvic fractures were treated by subcutaneous pedicle screw-rod system with modified placement in the anterior inferior iliac spine and pubic tubercle. There were 8 males and 6 females, aged from 23 to 65 years with an average of 42 years. Operative time, intraoperative blood loss, fracture healing and postoperative complication were observed and clinical effects were evaluated by Matta reduction standard and Majeed score. RESULTS All patients were followed up from 8 to 15 months with an average of 10.5 months. Operative time was 25 to 45 min with an average of 32 min;intraoperative blood loss was 10 to 35 ml with an average of 18 ml. All fractures got primary healing and healed time was 9 to 14 weeks with an average of 12.5 weeks. No postoperative incision infection, internal fixation failure and ectopic ossification were found, 4 cases occurred unilateral lateral femoral cutaneous nerve injury and 1 case occurred unilateral femoral nerve paralysis, but all restored finally. According to Matta criteria, reduction was excellent in 7 cases, good in 5 cases, fair in 2 case. According to Majeed score system, the functional evaluation at last follow-up was excellent in 5 cases, good in 7 cases, fair in 2 cases with the average score of 81.50±8.05. CONCLUSIONS Subcutaneous pedicle screw-rod system with modified placement in the anterior inferior iliac spine and pubic tubercle have advantages of strong reduction, less trauma and complications, and is a promising surgical method in the treatment of Tile B pelvic fractures.
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Affiliation(s)
- Xiao-Tian Wu
- Department of Orthopaedics, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai 201700, China
| | - Nong Chen
- Department of Orthopaedics, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai 201700, China;
| | - Fu-Gen Pan
- Department of Orthopaedics, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai 201700, China
| | - Zuo-Qing Liu
- Department of Orthopaedics, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai 201700, China
| | - Xiao-Jian He
- Department of Orthopaedics, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai 201700, China
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Wu XT, Chen YQ, Lu WJ. [Role of pulmonary vein in pulmonary hypertension]. Zhonghua Jie He He Hu Xi Za Zhi 2017; 40:68-70. [PMID: 28100367 DOI: 10.3760/cma.j.issn.1001-0939.2017.01.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
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Chen YF, Liang RS, Zhuo XL, Wu XT, Zou JX. Isolation and characterization of Aeromonas schubertii from diseased snakehead, Channa maculata (Lacepède). J Fish Dis 2012; 35:421-430. [PMID: 22524539 DOI: 10.1111/j.1365-2761.2012.01362.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Pure bacterial cultures were isolated from diseased snakeheads, Channa maculata (Lacepède), suffering high mortality in a farm in Zhongshan, southern China. Three isolates, namely ZS20100725, ZS20100725-1 and ZS20100725-2, were identified as Aeromonas schubertii. All the isolates showed high 16S rRNA sequence similarities with A. schubertii. The isolates exhibited strong virulence to snakeheads in experimental challenges with LD(50) ranging between 1.4 × 10(4) and 6.4 × 10(6) CFU g(-1). Two of the isolates were positive for haemolysin, elastase, lipase and lecithinase by phenotypic determination, which was further confirmed by PCR amplification of the haemolysin and elastase genes. In sterile liquid medium, the best growth conditions of strain ZS20100725 were 30 °C, pH 7 and 0.5% salinity (w/v). Antibiotic susceptibility tests showed that strain ZS20100725 was susceptible to cefoxitin, cefoperazone and chloramphenicol. Furthermore, histopathology of diseased snakeheads infected with A. schubertii showed necrosis and congestion in liver, kidney and spleen and also damage to the cardiac muscle, intestine and gills.
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Affiliation(s)
- Y F Chen
- College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China
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Wu XT, Hu FY, An DM, Yan B, Jiang X, Kwan P, Stefan H, Zhou D. Association between carbamazepine-induced cutaneous adverse drug reactions and the HLA-B*1502 allele among patients in central China. Epilepsy Behav 2010; 19:405-8. [PMID: 20833111 DOI: 10.1016/j.yebeh.2010.08.007] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2010] [Revised: 07/08/2010] [Accepted: 08/05/2010] [Indexed: 10/19/2022]
Abstract
The aim of this study was to investigate the association between carbamazepine (CBZ)-induced cutaneous adverse drug reactions (cADRs) and the HLA-B*1502 allele among patients from central China. Eight patients with Stevens-Johnson syndrome and toxic epidermal necrolysis (SJS/TEN), 28 with mild maculopapular eruptions (MPEs), 50 CBZ-tolerant controls, and 71 healthy volunteers were recruited. HLA genotyping was performed using the polymerase chain reaction sequence-based typing (SBT) method. As a result, the HLA-B*1502 allele was observed at the following rates: (1) 100% (8/8) among those with CBZ-induced SJS/TEN, (2) 10.7% (3/28) among those with CBZ-induced MPEs; (3) 8.0% (4/50) among CBZ-tolerant controls; (4) 8.5% (6/71) among healthy volunteers. The eight patients with SJS/TEN positive for the HLA-B*1502 allele had an odds ratio (OR) of 184 compared with CBZ-tolerant controls. There was no significant difference in frequency between patients with MPEs and CBZ-tolerant controls (P>0.05). Thus, CBZ-induced SJS/TEN, but not MPEs, is strongly associated with HLA-B*1502. Testing for HLA-B*1502 should be recommended for patients from central China prior to initial CBZ treatment.
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Affiliation(s)
- X T Wu
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
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Abstract
Using mean field approximation, we investigate the Blume-Capel model with random bond. The system is self-organized into blocks, which behave like superspins and are coupled with their neighbors. The methods to search the elementary blocks and calculate their coupling are proposed. For the strongly disordered case, the coupling distribution is exponential and the phase transition should be inhomogeneous. This physical picture should be common in various phase transition in quenched disordered systems.
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Affiliation(s)
- X T Wu
- Department of Physics, Beijing Normal University, Beijing 100875, China
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Qian L, Shen Y, Chen JC, Wang YX, Wu XT, Chen TJ, Zheng KC. 3D-QSAR and Docking Studies of Quinazoline Derivatives with the Inhibitory Activity Toward NF-κB. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/qsar.200710132] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Fu ZY, Wu XT, Dai JC, Wu LM, Cui CP, Hu SM. Interpenetration in [Cd(isonicotinate)2(1,2-bis(4-pyridyl)-ethane)0.5(H2O)]n, a novel octahedral polymer containing an unusual two-dimensional bilayer motif generated by self-assembly of rectangle building blocks. Chem Commun (Camb) 2001:1856-7. [PMID: 12240348 DOI: 10.1039/b105237n] [Citation(s) in RCA: 95] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A hydrothermally synthesized mixed-ligand molecular solid composed of pillared bilayers has been formulated; it presents a new remarkable three-dimensional architecture sustained by the catenation of two-fold decked layers, and exhibits intense photoluminescence upon photoexcitation at 314 nm.
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Affiliation(s)
- Z Y Fu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P.R. China
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Mukhopadhyay I, Duan YB, Wu XT, Takagi K. High resolution spectral analysis of 13CH3OH in the excited torsional states. Spectrochim Acta A Mol Biomol Spectrosc 2000; 56A:19-28. [PMID: 10728853 DOI: 10.1016/s1386-1425(99)00102-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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
In this work, we have extended our previous analysis of the Hamiltonian of 13C substituted methanol to include a large number of spectral lines involving the second excited torsional state using an improved model. The data set consisted of 2529 Fourier transform and microwave transitions with the rotational angular momentum J < or = 10, K < or = 6 and n < or = 2 (with 336 MW lines). The data set was fitted with the new Hamiltonian model to derive the molecular parameters. The results indicate that the model developed for the other methanol species (CH3OH, CH3(18)OH and CH3OD) is also valid for the C-13 substituted species. The results will allow the energy levels of the molecule to be calculated for higher torsional levels above the internal rotational barrier with improved precision and allow the analysis to be carried out for more excited torsional states.
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Dai KR, Ni C, Wu XT. [An experimental study and preliminary clinical report of shape-memory sawtooth-arm embracing internal fixator]. Zhonghua Wai Ke Za Zhi 1994; 32:629-32. [PMID: 7750426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The sawtooth-arm internal embracing fixator is made of Nickel-Titanium shape memory alloy and consists of 3 components: body, arms and sawteeth. In cross section a 2/3 circumference is constructed by body and arms of the fixator. The free ends of the arms which exceed the semi-circle are bent more medially so that it can match the requirement of fixation of long tubular bone whose cross section is not a regular circle. The embracing fixator has two types: the cylinder type is for use in the middle part and the cone type is either for the proximal or distal 1/3 of the shaft of long tubular bone. The animal experimental studies and in vitro mechanical tests demonstrated that the embracing fixator possesses good anti-bending and anti-torsion effects, and its resisting compression effect was much lower than that of bone plate. These characteristics are beneficial for enhancing fracture healing, reducing post fixation osteoporosis and providing a new, simple and effective method for the treatment of long tubular bone fracture. The fixator has already been used in the treatment of fractures of femur, humerus, radius and ulna with good results.
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Affiliation(s)
- K R Dai
- Ninth People's, Shanghai Second Medical University
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