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Liu HF, Feng QL, Huang RW, Yuan TY, Sui MZ, Li PL, Liu K, Li F, Li Y, Jiang L, Fu HM. [Clinical characteristics of hospitalized children with respiratory syncytial virus infection and risk prediction of severe illness during the post-COVID-19 era in Kunming]. Zhonghua Er Ke Za Zhi 2024; 62:323-330. [PMID: 38527502 DOI: 10.3760/cma.j.cn112140-20240219-00109] [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: 03/27/2024]
Abstract
Objective: To compare the epidemiological and clinical characteristics of hospitalized children with respiratory syncytial virus (RSV) infection in Kunming among the pre-and post-COVID-19 era, and to establish a prediction model for severe RSV infection in children during the post-COVID-19 period. Methods: This was a retrospective study. Clinical and laboratory data were collected from 959 children hospitalized with RSV infection in the Department of Pulmonary and Critical Care Medicine at Kunming Children's Hospital during January to December 2019 and January to December 2023. Patients admitted in 2019 were defined as the pre-COVID-19 group, while those admitted in 2023 were classified as the post-COVID-19 group. Epidemiological and clinical characteristics were compared between the two groups. Subsequently, comparison of the clinical severity among the two groups was performed based on propensity score matching (PSM). Furthermore, the subjects in the post-COVID-19 group were divided into severe and non-severe groups based on clinical severity. Chi-square test and Mann-Whitney U test were used for pairwise comparison between groups, and multivariate Logistic regression was applied for the identification of independent risk factors and construction of the prediction model. The receiver operating characteristic (ROC) curve and calibration curve were employed to evaluate the predictive performance of this model. Results: Among the 959 children hospitalized with RSV infection, there were 555 males and 404 females, with an onset age of 15.4 (7.3, 28.5) months. Of which, there were 331 cases in the pre-COVID-19 group and 628 cases in the post-COVID-19 group. The peak period of RSV hospitalization in the post-COVID-19 group were from May to October 2023, and the monthly number of inpatients for each of these months were as follows: 72 cases (11.5%), 98 cases (15.6%), 128 cases (20.4%), 101 cases (16.1%), 65 cases (10.4%), and 61 cases (9.7%), respectively. After PSM for general data, 267 cases were matched in each group. The proportion of wheezing in the post-COVID-19 group was lower than that in the pre-COVID-19 group (109 cases (40.8%) vs. 161 cases (60.3%), χ2=20.26, P<0.001), while the incidences of fever, tachypnea, seizures, severe case, neutrophil-to-lymphocyte ratio (NLR), C-reactive protein and interleukin-6 levels were all higher than those in the pre-COVID-19 group (146 cases (54.7%) vs. 119 cases (44.6%), 117 cases (43.8%) vs. 89 cases (33.3%), 37 cases (13.9%) vs. 14 cases (5.2%), 69 cases (25.8%) vs. 45 cases (16.9%), 3.6 (1.9, 6.4) vs. 2.3 (1.8, 4.6), 9.9 (7.1, 15.2) vs. 7.8 (4.5, 13.9) mg/L, 20.5 (15.7, 30.4) vs. 17.2 (11.0, 26.9) ng/L, χ2=5.46, 6.36, 11.47, 6.42, Z=4.13, 3.06, 2.96, all P<0.05). There were 252 cases and 107 cases with co-infection in the post-and pre-COVID-19 groups, respectively. The proportion of triple and quadruple infection in the post-COVID-19 group was higher than that in the pre-COVID-19 group (59 cases (23.4%) vs. 13 cases (12.1%), 30 cases (11.9%) vs. 5 cases (4.7%), χ2=5.94, 4.46, both P<0.05). Among the 252 cases with co-infection in post-COVID-19 group, the most prevalent pathogens involving in co-infections, in order, were Mycoplasma pneumoniae 56 cases (22.2%), Influenza A virus 53 cases (21.0%), Rhinovirus 48 cases (19.0%), Parainfluenza virus 35 cases (13.9%), and Adenovirus 28 cases (11.1%).The result of multivariate Logistic regression showed that age (OR=0.70, 95%CI 0.62-0.78, P<0.001), underlying diseases (OR=10.03, 95%CI 4.10-24.55, P<0.001), premature birth (OR=6.78, 95%CI 3.53-13.04, P<0.001), NLR (OR=1.85, 95%CI 1.09-3.15, P=0.023), and co-infection (OR=1.28, 95%CI 1.18-1.38, P<0.001) were independently associated with the development of severe RSV infection in the post-COVID-19 group. The ROC curve of the prediction model integrating the above five factors indicated an area under the curve of 0.85 (95%CI 0.80-0.89, P<0.001), with an optimal cutoff of 0.21, a sensitivity of 0.83 and a specificity of 0.80. The calibration curve showed that the predicted probability in this model did not differ significantly from the actual probability (P=0.319). Conclusions: In the post-COVID-19 era in Kunming, the peak in pediatric hospitalizations for RSV infection was from May to October, with declined incidence of wheezing and increased incidence of fever, tachypnea, seizures, severe cases, and rates of triple and quadruple co-infections. Age, underlying diseases, premature birth, NLR, and co-infection were identified as independent risk factors for severe RSV infection in the post-COVID-19 period. In this study, a risk prediction model for severe pediatric RSV infection was established, which had a good predictive performance.
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Affiliation(s)
- H F Liu
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
| | - Q L Feng
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
| | - R W Huang
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
| | - T Y Yuan
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
| | - M Z Sui
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
| | - P L Li
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
| | - K Liu
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
| | - F Li
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
| | - Y Li
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
| | - L Jiang
- Department of Laboratory Medicine, Kunming Children's Hospital, Kunming 650034, China
| | - H M Fu
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
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Lo CJ, Lin CM, Fan CM, Tang HY, Liu HF, Ho HY, Cheng ML. Plasma acylcarnitine in elderly Taiwanese: as biomarkers of possible sarcopenia and sarcopenia. BMC Geriatr 2023; 23:769. [PMID: 37993772 PMCID: PMC10666394 DOI: 10.1186/s12877-023-04485-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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Accepted: 11/14/2023] [Indexed: 11/24/2023] Open
Abstract
BACKGROUND Sarcopenia is defined as the disease of muscle loss and dysfunction. The prevalence of sarcopenia is strongly age-dependent. It could bring about disability, hospitalization, and mortality. The purpose of this study was to identify plasma metabolites associated with possible sarcopenia and muscle function to improve disease monitoring and understand the mechanism of muscle strength and function decline. METHODS The participants were a group of healthy older adult who live in retirement homes in Asia (Taiwan) and can manage their daily lives without assistance. The participants were enrolled and divided into four groups: control (Con, n = 57); low physical function (LPF, n = 104); sarcopenia (S, n = 63); and severe sarcopenia (SS, n = 65) according to Asian countries that used Asian Working Group for Sarcopenia (AWGS) criteria. The plasma metabolites were used and the results were calculated as the difference between the control and other groups. RESULTS Clinical parameters, age, gender, body mass index (BMI), hand grip strength (HGS), gait speed (GS), blood urea nitrogen (BUN), hemoglobin, and hematocrit were significantly different between the control and LPF groups. Metabolite patterns of LPF, S, and SS were explored in our study. Plasma kynurenine (KYN) and acylcarnitines (C0, C4, C6, and C18:1-OH) were identified with higher concentrations in older Taiwanese adults with possible sarcopenia and S compared to the Con group. After multivariable adjustment, the data indicate that age, BMI, and butyrylcarnitine (C4) are more important factors to identify individuals with low physical function and sarcopenia. CONCLUSION This metabolomic study raises the importance of acylcarnitines on muscle mass and function. It suggests that age, BMI, BUN, KYN, and C4/Cr can be important evaluation markers for LPF (AUC: 0.766), S (AUC: 0.787), and SS (AUC: 0.919).
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Grants
- BMRP819, BMRP564, CMRPD1H0201, CMRPD1H0202, CMRPD1J0341, CMRPD1H0511, CMRPD1J0261, CMRPD1M0341 Chang Gung Memorial Hospital
- 111-2320-B-182-011 Ministry of Science and Technology in Taiwan
- EMRPD1G0251, EMRPD1H0401, EMRPD1I0501, EMRPD1I0461, EMRPD1M0421 Ministry of Education in Taiwan
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Affiliation(s)
- Chi-Jen Lo
- Metabolomics Core Laboratory, Healthy Aging Research Center, Chang Gung University, Taoyuan City, 33302, Taiwan
| | - Chih-Ming Lin
- Division of Internal Medicine, Chang Gung Memorial Hospital, Taipei, 105, Taiwan
- Department of Health Management, Chang Gung Health and Culture Village, Taoyuan City, 333, Taiwan
| | - Chun-Ming Fan
- Metabolomics Core Laboratory, Healthy Aging Research Center, Chang Gung University, Taoyuan City, 33302, Taiwan
| | - Hsiang-Yu Tang
- Metabolomics Core Laboratory, Healthy Aging Research Center, Chang Gung University, Taoyuan City, 33302, Taiwan
| | - Han-Fang Liu
- Metabolomics Core Laboratory, Healthy Aging Research Center, Chang Gung University, Taoyuan City, 33302, Taiwan
| | - Hung-Yao Ho
- Metabolomics Core Laboratory, Healthy Aging Research Center, Chang Gung University, Taoyuan City, 33302, Taiwan
- Clinical Metabolomics Core Laboratory, Chang Gung Memorial Hospital, Taoyuan City, 33302, Taiwan
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan City, 33302, Taiwan
| | - Mei-Ling Cheng
- Metabolomics Core Laboratory, Healthy Aging Research Center, Chang Gung University, Taoyuan City, 33302, Taiwan.
- Clinical Metabolomics Core Laboratory, Chang Gung Memorial Hospital, Taoyuan City, 33302, Taiwan.
- Department of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan City, 33302, Taiwan.
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Liu CH, Zhao H, Xia Y, Cao Y, Zhang LY, Zhao Y, Gao LY, Liu RF, Liu YW, Liu HF, Meng ZL, Liu SZ, Lu Y, Palashate Y, Li XY. [A single-center study on the oncological outcomes of active surveillance of thyroid nodules measuring≤1 cm with highly suspicious ultrasound features]. Zhonghua Yi Xue Za Zhi 2023; 103:3186-3192. [PMID: 37879872 DOI: 10.3760/cma.j.cn112137-20230206-00168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 10/27/2023]
Abstract
Objective: To investigate the oncological outcomes of active surveillance (AS) in patients showing thyroid nodules measuring≤1 cm with highly suspicious ultrasound features. Methods: A prospective single-center cohort study. A total of 534 patients with highly suspicious thyroid nodules (2015 American Thyroid Association Nodule Sonographic Patterns and Risk of Malignancy: High Suspicion) were enrolled in this study, the patients received AS at Peking Union Medical College Hospital between January 2017 and November 2022 to assess oncological outcomes (disease progression, recurrence/metastasis rate, etc). The patients were followed up every 6 months for physical examination and neck ultrasound examination. And the value of tumor volume changes in evaluating tumor enlargement was explored too. Results: There were 413 females and 121 males in this cohort, with a mean age of (42.6±11.8) years. During a median follow-up period of 45.6 months (ranged from 3.5 to 176.0 months), disease progression occurred in 26 patients (4.9%) with highly suspicious thyroid nodules, characterized by a minimum 3-mm increase in tumor diameter in 19 patients (3.6%) and lymph node metastases in 7 patients (1.3%). Forty-seven (8.8%) patients opted for delayed surgery, with 29 patients due to a change in preference. There was no significant differences in pathologic and follow-up outcomes between patients with disease progression and preference change. Patients aged≤40 years had a higher cumulative incidence of 5-year disease progression than those aged>40 years (4.9% vs 1.9%, P=0.060). No patients experienced distant metastases or deaths. Among the 595 high-risk thyroid nodules with continuous volume assessment results and an increase in nodule diameter of less than 3 mm (including all high-risk nodules in patients with single or multiple nodules), 184 (30.9%) and 79 (13.3%) nodules exhibited volume increases of more than 50% and 100%, respectively, in multiple measurements. Among the nodules with volume changes exceeding 50% and 100%, the proportion of nodules with a baseline tumor diameter of≤0.5 cm was significantly higher than those with a diameter of>0.5 cm, at 69.0% vs 31.0% (P<0.001) and 77.2% vs 22.8% (P<0.001), respectively. Conclusions: Active surveillance in patients with highly suspicious subcentimeter thyroid nodules has good short-term oncological outcomes and can be considered a safe alternative to surgery. Due to the large variability in the measurement results of tumor volume, it is not suitable as an indicator for evaluating tumor enlargement.
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Affiliation(s)
- C H Liu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - H Zhao
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Y Xia
- Department of Ultrasound, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Y Cao
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - L Y Zhang
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Y Zhao
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - L Y Gao
- Department of Ultrasound, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - R F Liu
- Department of Ultrasound, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Y W Liu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - H F Liu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Z L Meng
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - S Z Liu
- Department of Otolaryngology Head and Neck Surgery, Hainan General Hospital, Haikou 570311, China
| | - Y Lu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Yeerkenbieke Palashate
- Second Department of General Surgery, Xinjiang Yili Kazak Autonomous Prefecture Friendship Hospital, Yili 835800, China
| | - X Y Li
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
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Wang WF, Yang B, Liu HF, Ren LF, He D, Zhao XC, Li J. A multiline fitting method for measuring ethylene concentration based on WMS-2f/1f. Sci Rep 2023; 13:15302. [PMID: 37714900 PMCID: PMC10504384 DOI: 10.1038/s41598-023-42398-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 09/09/2023] [Indexed: 09/17/2023] Open
Abstract
Coal spontaneous combustion risk assessment is a global technical challenge for the sustainable development of deep mining technology, and C2H4 is a key indicator for early warning of coal spontaneous combustion. Tunable diode laser absorption spectroscopy (TDLAS) has the advantages of high selectivity, high sensitivity, high accuracy and real-time on-line measurement, and it can detect multiple gases simultaneously, so it has significant advantages in the accurate detection of coal spontaneous combustion indicator gases. To address the problem of cross-interference between the near-infrared absorption lines of CH4 and C2H4, which are the indicator gases of spontaneous combustion in coal, a multi-line fitting method was proposed in this study to calibrate the concentration of C2H4. The high-precision Environics2000 automatic standard gas dispenser from the United States, which has a built-in CPU computer control and data control and processing system, was used. Its gas concentration accuracy: ± 1.0%, gas flow accuracy: ± 1.0%, gas repeatability accuracy: ± 1.0%, flow linearity accuracy: ± 0.5%, and inlet operating pressure: minimum 10 psig (0.67 bar) ~ 75 psig (5.04 bar). The measured and simulated WMS-2f/1f signals were multilinearly fitted using a multilinear fitting algorithm and wavelength modulation spectroscopy (WMS), and the measurement of C2H4 concentration was achieved based on the extracted spectral line information. The results show that the maximum relative error of C2H4 concentration measurement is 2.40%, which is 54% lower than that of the conventional 2f peak measurement method, thus demonstrating the effectiveness of the multilinear fitting algorithm in the inversion of C2H4 concentration under the interference of absorption lines. In addition, this study has far-reaching implications for the application of TDLAS technology in the accurate detection of coal spontaneous combustion indicator gases.
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Affiliation(s)
- W F Wang
- School of Safety Science and Engineering, Xi'an University of Science and Technology, Xi'an, 710054, Shaanxi, China
- Key Laboratory of Mine and Disaster Prevention and Control of Ministry of Education, Xi'an University of Science and Technology, Xi'an, 710054, Shaanxi, People's Republic of China
| | - B Yang
- School of Safety Science and Engineering, Xi'an University of Science and Technology, Xi'an, 710054, Shaanxi, China
- Key Laboratory of Mine and Disaster Prevention and Control of Ministry of Education, Xi'an University of Science and Technology, Xi'an, 710054, Shaanxi, People's Republic of China
| | - H F Liu
- School of Safety Science and Engineering, Xi'an University of Science and Technology, Xi'an, 710054, Shaanxi, China
- Key Laboratory of Mine and Disaster Prevention and Control of Ministry of Education, Xi'an University of Science and Technology, Xi'an, 710054, Shaanxi, People's Republic of China
| | - L F Ren
- School of Safety Science and Engineering, Xi'an University of Science and Technology, Xi'an, 710054, Shaanxi, China.
- Key Laboratory of Mine and Disaster Prevention and Control of Ministry of Education, Xi'an University of Science and Technology, Xi'an, 710054, Shaanxi, People's Republic of China.
| | - D He
- School of Safety Science and Engineering, Xi'an University of Science and Technology, Xi'an, 710054, Shaanxi, China
- Key Laboratory of Mine and Disaster Prevention and Control of Ministry of Education, Xi'an University of Science and Technology, Xi'an, 710054, Shaanxi, People's Republic of China
| | - X C Zhao
- School of Safety Science and Engineering, Xi'an University of Science and Technology, Xi'an, 710054, Shaanxi, China
- Key Laboratory of Mine and Disaster Prevention and Control of Ministry of Education, Xi'an University of Science and Technology, Xi'an, 710054, Shaanxi, People's Republic of China
| | - J Li
- School of Safety Science and Engineering, Xi'an University of Science and Technology, Xi'an, 710054, Shaanxi, China
- Key Laboratory of Mine and Disaster Prevention and Control of Ministry of Education, Xi'an University of Science and Technology, Xi'an, 710054, Shaanxi, People's Republic of China
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5
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Li Z, Wang XQ, Xu Y, Liu HF, Huang J. Nonlinear interaction between double tearing mode and Kelvin-Helmholtz instability with different shear flows. Sci Rep 2023; 13:13559. [PMID: 37604840 PMCID: PMC10442345 DOI: 10.1038/s41598-023-40920-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 08/18/2023] [Indexed: 08/23/2023] Open
Abstract
The nonlinear interaction between the double tearing mode (DTM) and Kelvin-Helmholtz (KH) instabilities with different shear flow profiles has been numerically investigated via the use of a compressible magnetohydrodynamics (MHD) model. We focus on KH instabilities in weak and reversed magnetic shear plasmas with strong stabilizing effect of field line bending. Results show that KH instabilities coupled with DTMs occur in these plasmas and the KH mode dominates the instability dynamics, suggesting the crucial role of weak magnetic shear in the formation of high-mode harmonics. For symmetric flows, an asymmetric forced magnetic reconnection configuration is maintained during the growth phase, leading to interlocking of the modes. Additionally, this investigation of the DTM-KH instability interaction contributes to our understanding of the nonlinear reconnection mechanism in the regime of weak and reversed magnetic shear plasmas, which is relevant for astrophysical and fusion studies.
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Affiliation(s)
- Z Li
- Institute of Fusion Science, School of Physical Science and Technology Southwest, Jiaotong University, Chengdu, 610031, China
| | - X Q Wang
- Institute of Fusion Science, School of Physical Science and Technology Southwest, Jiaotong University, Chengdu, 610031, China.
| | - Y Xu
- Institute of Fusion Science, School of Physical Science and Technology Southwest, Jiaotong University, Chengdu, 610031, China
| | - H F Liu
- Institute of Fusion Science, School of Physical Science and Technology Southwest, Jiaotong University, Chengdu, 610031, China
| | - J Huang
- Institute of Fusion Science, School of Physical Science and Technology Southwest, Jiaotong University, Chengdu, 610031, China
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Song Y, Cui CX, Zhang W, Sun YK, Yang L, Zhou H, Liu HF, Zhou AP. [Clinical tolerability and pharmacokinetics of troxacitabine]. Zhonghua Zhong Liu Za Zhi 2023; 45:519-524. [PMID: 37355471 DOI: 10.3760/cma.j.cn112152-20221011-00696] [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: 06/26/2023]
Abstract
Objective: To investigate the safety and efficacy of troxatabine in advanced or relapsed malignant tumors resistant to standard therapy in China. Methods: This is a phase Ⅰ prospective study. During dose escalation, patients in Cancer Hospital, Chinese Academy of Medical Sciences received a single-dose intravenous infusion of troxacitabine. The planned dosing groups were 1.8, 3.6, 4.8, 6.4 and 8.0 mg/m(2) on days 1 and 8 every 3 weeks. The data of all patients were collected for safety analyses. Safety and tolerability were evaluated by monitoring adverse events. Results: Nineteen patients were enrolled from April 2018 to May 2019. The major adverse events were fatigue (89.5%, 17/19), leukopenia (84.2%, 16/19) and neutropenia (78.9%, 15/19). The dose limiting toxicity was neutropenia. The maximum tolerated dose was 6.4 mg/m(2). The best effect was stable disease (43.8%). The half-life of elimination phase from 15.91 hours to 76.63 hours in each dose group. Conclusions: The toxicity of troxacitabine is well tolerant. We recommend that the dose for Phase Ⅱ clinical trial should be 6.4 mg/m(2).
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Affiliation(s)
- Y Song
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - C X Cui
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - W Zhang
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y K Sun
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - L Yang
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - H Zhou
- Beijing HebaBiz Biotechnology Co. Ltd/National and Region joint Engineering Center for Anticancer Drug Development, Beijing 102206, China
| | - H F Liu
- Beijing HebaBiz Biotechnology Co. Ltd/National and Region joint Engineering Center for Anticancer Drug Development, Beijing 102206, China
| | - A P Zhou
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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Zhang QH, Xu N, Jiang ZN, Liu HF, Zhang GA. Chitosan derivatives as promising green corrosion inhibitors for carbon steel in acidic environment: Inhibition performance and interfacial adsorption mechanism. J Colloid Interface Sci 2023; 640:1052-1067. [PMID: 36921384 DOI: 10.1016/j.jcis.2023.02.141] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 02/17/2023] [Accepted: 02/25/2023] [Indexed: 03/06/2023]
Abstract
Among the biodegradable polysaccharide, chitosan is widely present in the cell membranes of bacteria and algae and in the cell walls of higher plants. As a promising biopolymer, chitosan has great potential as eco-friendly corrosion inhibitor. Herein, two synthetic chitosan derivatives (N-phenylthiourea chitosan (CS-PT), N-phenyl-O-benzylthiourea chitosan (CS-PT-Bn)) were investigated as high-efficient acidic corrosion inhibitors to deal with the corrosion issue of carbon steel. The anti-corrosion property of the chitosan derivatives was explored by electrochemical tests, surface characterization and theoretical calculations. The experimental results indicate that both CS-PT and CS-PT-Bn present high-efficient inhibition performance with the inhibition efficiency of 98.4% and 98.5% at the concentration of 100 mg/L, respectively. Their adsorption mechanism at steel/solution interface is revealed by quantum chemical calculations, molecular dynamics (MD) and GFN-xTB calculations. It is found that CS-PT and CS-PT-Bn adsorb at the steel/solution interface by forming Fe-N and Fe-S bonds. Compared to CS-PT molecule, the introduction of benzyl group endows CS-PT-Bn molecule with stronger electrostatic effect and hydrophobicity, which favors the interfacial adsorption of CS-PT-Bn molecule on carbon steel surface.
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Affiliation(s)
- Q H Zhang
- Anhui Province Key Laboratory of Functional Coordinated Complexes for Materials Chemistry and Application, School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, PR China; Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - N Xu
- Anhui Province Key Laboratory of Functional Coordinated Complexes for Materials Chemistry and Application, School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, PR China
| | - Z N Jiang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - H F Liu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China; State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 410074, PR China
| | - G A Zhang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China.
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Wang HL, Cheng YC, Yeh TH, Liu HF, Weng YH, Chen RS, Chen YC, Lu JC, Hwang TL, Wei KC, Liu YC, Wang YT, Hsu CC, Chiu TJ, Chiu CC. HCH6-1, an antagonist of formyl peptide receptor-1, exerts anti-neuroinflammatory and neuroprotective effects in cellular and animal models of Parkinson’s disease. Biochem Pharmacol 2023; 212:115524. [PMID: 37001680 DOI: 10.1016/j.bcp.2023.115524] [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] [Received: 03/22/2023] [Accepted: 03/24/2023] [Indexed: 03/31/2023]
Abstract
Microglial activation-induced neuroinflammation contributes to onset and progression of sporadic and hereditary Parkinson's disease (PD). Activated microglia secrete pro-inflammatory and neurotoxic IL-1β, IL-6 and TNF-α, which subsequently promote neurodegeneration. Formyl peptide receptor-1 (FPR1) of CNS microglia functions as pattern recognition receptor and is activated by N-formylated peptides, leading to microglial activation, induction of inflammatory responses and resulting neurotoxicity. In this study, it was hypothesized that FPR1 activation of microglia causes loss of dopaminergic neurons by activating inflammasome and upregulating IL-1β, IL-6 or TNF-α and that FPR1 antagonist HCH6-1 exerts neuroprotective effect on dopaminergic neurons. FPR1 agonist fMLF induced activation of microglia cells by causing activation of NLRP3 inflammasome and upregulation and secretion of IL-1β, IL-6 or TNF-α. Conditioned medium (CM) of fMLF-treated microglia cells, which contains neurotoxic IL-1β, IL-6 and TNF-α, caused apoptotic death of differentiated SH-SY5Y dopaminergic neurons by inducing mitochondrial oxidative stress and activating pro-apoptotic signaling. FPR1 antagonist HCH6-1 prevented fMLF-induced activation of inflammasome and upregulation of pro-inflammatory cytokines in microglia cells. HCH6-1 co-treatment reversed CM of fMLF-treated microglia-induced apoptotic death of dopaminergic neurons. FPR1 antagonist HCH6-1 inhibited rotenone-induced upregulation of microglial marker Iba-1 protein level, cell death of dopaminergic neurons and motor impairment in zebrafish. HCH6-1 ameliorated rotenone-induced microglial activation, upregulation of FPR1 mRNA, activation of NLRP3 inflammasome, cell death of SN dopaminergic neurons and PD motor deficit in mice. Our results suggest that FPR1 antagonist HCH6-1 possesses anti-neuroinflammatory and neuroprotective effects on dopaminergic neurons by inhibiting microglial activation and upregulation of inflammasome activity and pro-inflammatory cytokines.
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Affiliation(s)
- Hung-Li Wang
- Department of Physiology and Pharmacology, Chang Gung University College of Medicine, Taoyuan, Taiwan; Division of Movement Disorders, Department of Neurology, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan; Neuroscience Research Center, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan; Healthy Aging Research Center, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Yi-Chuan Cheng
- Neuroscience Research Center, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan; Graduate Institute of Biomedical Sciences, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Tu-Hsueh Yeh
- Department of Neurology, Taipei Medical University Hospital, Taipei, Taiwan
| | - Han-Fang Liu
- Graduate Institute of Biomedical Sciences, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Yi-Hsin Weng
- Division of Movement Disorders, Department of Neurology, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan; Neuroscience Research Center, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Rou-Shayn Chen
- Division of Movement Disorders, Department of Neurology, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan; Neuroscience Research Center, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Yi-Chun Chen
- College of Medicine, Chang Gung University, Taoyuan, Taiwan; Department of Neurology, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
| | - Juu-Chin Lu
- Department of Physiology and Pharmacology, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan, Taiwan; Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan, Taiwan; Research Center for Chinese Herbal Medicine, Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan, Taiwan
| | - Kuo-Chen Wei
- College of Medicine, Chang Gung University, Taoyuan, Taiwan; Department of Neurosurgery, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
| | - Yu-Chuan Liu
- Division of Sports Medicine, Landseed International Hospital, Taoyuan, Taiwan
| | - Yu-Ting Wang
- Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Chia-Chen Hsu
- Neuroscience Research Center, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan; Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Tai-Ju Chiu
- Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Ching-Chi Chiu
- Neuroscience Research Center, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan; Healthy Aging Research Center, Chang Gung University College of Medicine, Taoyuan, Taiwan; Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taoyuan, Taiwan.
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Liu HF, Huang Y, Wu CY, Li Y, Wang YC, Zhang LP, Hou LK, Xie HK. [Pulmonary granular cell tumors: a clinicopathological analysis of five cases]. Zhonghua Bing Li Xue Za Zhi 2023; 52:136-141. [PMID: 36748133 DOI: 10.3760/cma.j.cn112151-20220628-00556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Objective: To investigate the clinicopathological features of pulmonary granular cell tumors (pGCTs) and to improve the diagnostic accuracy of the tumor. Methods: A total of 5 pGCTs were diagnosed from February 2016 to January 2022 at Shanghai Pulmonary Hospital, Tongji University School of Medicine and Fudan University Shanghai Cancer Center, China. Immunohistochemical staining, and analysis of the clinicopathological characteristics were performed. Results: The average age of the pGCTs patients was 46 years (ranging from 24 to 54 years), with 3 females and 2 males. One case occurred in the bronchus with multiple nodules in the lung, 2 cases occurred in the bronchial opening, and 2 cases were solitary nodules in the lung. The maximum diameter of the tumors ranged from 12 to 15 mm (mean size 14 mm). Microscopically, the tumor showed infiltrative growth and consisted of round, oval or polygonal cells. Abundant eosinophilic cytoplasm was noted, and the nucleoli were prominent. None of the 5 cases showed any mitosis or necrosis. Immunohistochemical and histochemical study showed positive staining for S-100 (5/5), SOX10 (5/5), Vimentin (5/5), TFE3 (4/5), PAS (3/5), and amylase-digested-PAS (3/5), while 4 cases were negative for CD68. TFE3 FISH analyses on 2 cases showed that no signal abnormality was detected in these 2 cases. The average proliferation index of Ki-67 was 2.2% (range 0-5%). There was no recurrence in 4 cases of pGCTs with a follow-up time ranging from 2 months to 60 months. Conclusions: pGCTs are very rare tumors, most likely originating from Schwann cells. Immunohistochemical staining is the conventional diagnostic tool for pGCTs diagnosis. Recognition of this entity is essential for pathologists to avoid misdiagnosis and unnecessary treatments.
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Affiliation(s)
- H F Liu
- Department of Pathology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai 200433, China
| | - Y Huang
- Department of Pathology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai 200433, China
| | - C Y Wu
- Department of Pathology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai 200433, China
| | - Y Li
- Department of Pathology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Y C Wang
- Department of Pathology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - L P Zhang
- Department of Pathology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai 200433, China
| | - L K Hou
- Department of Pathology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai 200433, China
| | - H K Xie
- Department of Pathology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai 200433, China
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Liu HF, Fu HM. [Characteristics of SARS-CoV-2 Omicron variant and infection status in children]. Zhonghua Er Ke Za Zhi 2022; 60:1346-1349. [PMID: 36444445 DOI: 10.3760/cma.j.cn112140-20220712-00639] [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] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Affiliation(s)
- H F Liu
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital,Yunnan Key Laboratory of Children's Major Disease Research, Kunming 650034, China
| | - H M Fu
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital,Yunnan Key Laboratory of Children's Major Disease Research, Kunming 650034, China
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Liang CX, Liang GY, Liu HF, Zheng XQ, Xiao D, Huang YX, Chen C, Yu T, Yin D, Chang YB. [Characteristics and risk factors of spinal epidural hematoma after unilateral biportal endoscopic lumbar interbody fusion]. Zhonghua Yi Xue Za Zhi 2022; 102:3267-3273. [PMID: 36319178 DOI: 10.3760/cma.j.cn112137-20220512-01040] [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: 06/16/2023]
Abstract
Objective: To investigate the incidence, characteristics and risk factors of spinal epidural hematoma after unilateral biportal endoscopic (UBE) lumbar spine surgery. Methods: The clinical data of 105 patients who underwent lumbar spine surgery under UBE in Guangdong Provincial People's Hospital from February 2020 to March 2021 were retrospectively reviewed. Of the patients, 48(45.7%) were male and 57(54.3%) were female, the mean age was (60.1±11.4) years (ranged 26 to 85 years). The MRI images at the third day post-surgery were observed, and the occurrence of hematoma was counted. Patients were assigned to normal group and hematoma group based on the presence of hematoma or not. The related clinical indicators of each patients were collected and used for comparison between two different groups. Logistic stepwise regression model was used to analyze whether each index was a risk factor for hematoma after the UBE lumbar fusion. Results: The total hematoma incidence rate was 28.6%(30/105), the symptomatic hematoma rate was 6.7%(7/105), and the hematoma reoperation rate was 0.9%(1/105). Univariate logistic regression analysis showed that hypertension (OR=3.368, 95%CI: 1.389-8.171), diabetes (OR=3.589, 95%CI: 1.230-10.476), admission systolic blood pressure>140 mmHg (1 mmHg=0.133 kPa,OR=3.687, 95%CI: 1.493-9.017), platelets<200×109/L (OR=0.300, 95%CI: 0.119-0.785), preoperative blood calcium<2.25 mmol/L (OR=0.340, 95%CI: 0.142-0.818), spinal stenosis grade D (OR=4.462, 95%CI: 1.810-10.996) were possible risk factors for spinal hematoma after UBE lumbar fusion. Multivariate logistic regression analysis showed that admission blood pressure systolic blood pressure>140 mmHg (OR=3.788, 95%CI:1.055-13.606), preoperative blood calcium<2.25 mmol/L (OR=78.544, 95%CI:3.895-1 584.058) and spinal stenosis grade D (OR=3.698, 95%CI:1.110-12.325) were risk factors for spinal hematoma after UBE lumbar fusion (all P<0.05). Conclusion: The types of spinal canal hematoma after UBE lumbar fusion include localized and extended type. The risk factors for hematoma include high systolic blood pressure on admission, low preoperative blood calcium and severe spinal stenosis.
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Affiliation(s)
- C X Liang
- Department of Spine Surgery, Guangdong Provincial People's Hospital, Guangzhou 510080, China
| | - G Y Liang
- Department of Spine Surgery, Guangdong Provincial People's Hospital, Guangzhou 510080, China
| | - H F Liu
- Department of Orthopedics, Xingning People's Hospital of Guangdong Province, Meizhou 514500, China
| | - X Q Zheng
- Department of Spine Surgery, Guangdong Provincial People's Hospital, Guangzhou 510080, China
| | - D Xiao
- Department of Spine Surgery, Guangdong Provincial People's Hospital, Guangzhou 510080, China
| | - Y X Huang
- Department of Spine Surgery, Guangdong Provincial People's Hospital, Guangzhou 510080, China
| | - C Chen
- Department of Spine Surgery, Guangdong Provincial People's Hospital, Guangzhou 510080, China
| | - T Yu
- Department of Spine Surgery, Guangdong Provincial People's Hospital, Guangzhou 510080, China
| | - D Yin
- Department of Spine Surgery, Guangdong Provincial People's Hospital, Guangzhou 510080, China
| | - Y B Chang
- Department of Spine Surgery, Guangdong Provincial People's Hospital, Guangzhou 510080, China
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12
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Wang CM, Liu HF, Zhang M, Shi L, Cui M, Wu ST, Tian JR, Zhang YD. [Effect of metformin combined with intermittent fasting on endoplasmic reticulum stress after cerebral ischemia-reperfusion in mice]. Zhonghua Yi Xue Za Zhi 2022; 102:363-369. [PMID: 35092978 DOI: 10.3760/cma.j.cn112137-20210620-01393] [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: 06/14/2023]
Abstract
Objective: To explore the effect of metformin combined with intermittent fasting on endoplasmic reticulum stress after cerebral ischemia-reperfusion injury in mice. Methods: One hundred 10-Week-old healthy KM mice of SPF grade, weighing 25-28 g, were divided into 5 groups by the random number table method: sham group, focal cerebral ischemia group (I/R group), intermittent fasting group (IF group), metformin group (Met group), metformin+intermittent fasting group (Met+IF group). In IF group, food was provided ad libitum from 8∶00 to 16∶00 daily, but the mice were fasted for the rest of the time. In Met group, the mice underwent intraperitoneal injection of metformin (10 mg/kg). In Met+IF group, the mice received the same eating method as the IF group and the same method of metformin injection as Met Group. In Sham group, I/R group and IF group, the mice were intraperitoneally injected with equal volume of normal saline. Mice in all groups were not restricted to drinking water. Random plasma glucose and body weight changes in mice during preconditioning were monitored, and a focal cerebral ischemia-reperfusion model was established 14 days later. The cerebral infarction volume was measured after 1 hour of ischemia and 24 hours of reperfusion. The brain tissues of mice were subjected to Western blot to detect the contents of endoplasmic reticulum stress-related proteins, including glucose-regulated protein 78 (GRP78), C/EBP homologous protein (CHOP), and apoptosis proteins (Caspase-3 and Cleaved-caspase 3). Results: After different interventions, there was no significant difference in random plasma glucose changes among the four groups (all P<0.05). The blood glucose level of the mice in the Met+IF group was lower than the sham group, I/R group, IF group and Met group (all P<0.05). GRP78/β-actin in sham group, I/R group, IF group, Met group, IF+Met group were 0.48±0.05, 1.35±0.10, 0.94±0.05, 0.70±0.14, 0.41±0.37, respectively; CHOP/β-actin were 0.27±0.04, 1.03±0.03, 0.72±0.04, 0.63±0.04, 0.44±0.01, respectively; Caspase-3/β-actin were 0.51±0.04, 1.04±0.04, 0.83±0.03, 0.76±0.03, 0.63±0.05, respectively; Cleaved-Caspase-3/β-actin were 0.17±0.06, 1.01±0.20, 0.75±0.06, 0.51±0.12, 0.29±0.08, respectively, with statistically significant differences (all P<0.001). The counts of GRP78-positive cells in the hippocampus immunohistochemistry in the sham group, I/R group, IF group, Met group, and IF+Met group were 53±5, 192±11, 162±12, 140±10, 114±13, respectively, while the counts of CHOP-positive cells were 35±4, 177±12, 120±12, 100±7, 69±10, respectively, with statistically significant differences (all P<0.001). The relative volume of cerebral infarction in I/R group, IF group, Met group and IF+Met group were 0, 0.333±0.046, 0.258±0.023, 0.116±0.039, 0.111±0.039, respectively, and there were statistically significant differences (all P<0.001). Conclusion: Both Metformin and intermittent fasting can alleviate endoplasmic reticulum stress after cerebral ischemia and reperfusion in mice, and the combination of the two has a better effect.
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Affiliation(s)
- C M Wang
- Advanced Medical Center of Zhengzhou Central Hospital,Zhengzhou 450007,China
| | - H F Liu
- Department of Neurology, the Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - M Zhang
- Department of Neurology, the Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - L Shi
- Department of Neurology, the Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - M Cui
- Department of Neurology, the Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - S T Wu
- Department of Neurology, the Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - J R Tian
- Department of Neurology, the Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Y D Zhang
- Department of Neurology, the Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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Gao YJ, Zheng WY, Liu HF, Zhuang JL, Wu D. [The 491st case: thrombocytosis, gastrointestinal hemorrhage, intestinal perforation]. Zhonghua Nei Ke Za Zhi 2021; 60:1193-1196. [PMID: 34856696 DOI: 10.3760/cma.j.cn112138-20210103-00003] [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: 06/13/2023]
Abstract
Essential thrombocythemia (ET) is a chronic myeloproliferative neoplasm (MPN) featured by clonal proliferation of platelets, thrombosis and hemorrhage. Portal hypertension is a serious complication of ET associated with poor prognosis. We report a patient with ET complicated with acute upper gastrointestinal hemorrhage and intestinal perforation due to portal hypertension. She had an uneventful recovery after surgical and endoscopic treatment.
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Affiliation(s)
- Y J Gao
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - W Y Zheng
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - H F Liu
- Department of General Surgery, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J L Zhuang
- Department of Hematology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - D Wu
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
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Yeh TH, Liu HF, Chiu CC, Cheng ML, Huang GJ, Huang YC, Liu YC, Huang YZ, Lu CS, Chen YC, Chen HY, Cheng YC. PLA2G6 mutations cause motor dysfunction phenotypes of young-onset dystonia-parkinsonism type 14 and can be relieved by DHA treatment in animal models. Exp Neurol 2021; 346:113863. [PMID: 34520727 DOI: 10.1016/j.expneurol.2021.113863] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 08/30/2021] [Accepted: 09/08/2021] [Indexed: 10/20/2022]
Abstract
Parkinson's disease (PD), the most common neurodegenerative motor disorder, is currently incurable. Although many studies have provided insights on the substantial influence of genetic factors on the occurrence and development of PD, the molecular mechanism underlying the disease is largely unclear. Previous studies have shown that point mutations in the phospholipase A2 group VI gene (PLA2G6) correlate with young-onset dystonia-parkinsonism type 14 (PARK14). However, limited information is available regarding the pathogenic role of this gene and the mechanism underlying its function. To study the role of PLA2G6 mutations, we first used zebrafish larvae to screen six PLA2G6 mutations and revealed that injection of D331Y, T572I, and R741Q mutation constructs induced phenotypes such as motility defects and reduction in dopaminergic neurons. The motility defects could be alleviated by treatment with L-3, 4-dihydroxyphenylalanine (L-dopa), indicating that these mutations are pathological for PARK14 symptoms. Furthermore, the injection of D331Y and T572I mutation constructs reduced phospholipase activity of PLA2G6 and its lipid metabolites, which confirmed that these two mutations are loss-of-function mutations. Metabolomic analysis revealed that D331Y or T572I mutation led to higher phospholipid and lower docosahexaenoic acid (DHA) levels, indicating that reduced DHA levels are pathological for defective motor functions. Further, a dietary DHA supplement relieved the motility defects in PLA2G6D331Y/D331Y knock-in mice. This result revealed that the D331Y mutation caused defective PLA2G6 phospholipase activity and consequently reduced the DHA level, which is the pathogenic factor responsible for PARK14. The results of this study will facilitate the development of therapeutic strategies for PARK14.
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Affiliation(s)
- Tu-Hsueh Yeh
- Department of Neurology, Taipei Medical University Hospital, Taipei, Taiwan; School of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Han-Fang Liu
- College of Medicine, Chang Gung University, Taoyuan, Taiwan; Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Ching-Chi Chiu
- College of Medicine, Chang Gung University, Taoyuan, Taiwan; Neuroscience Research Center, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan; Department of Medical Biotechnology and Laboratory Science, Chang Gung University, Taoyuan, Taiwan
| | - Mei-Ling Cheng
- Department of Biomedical Sciences, Chang Gung University, Taoyuan, Taiwan.; Metabolomics Core Laboratory, Healthy Aging Research Center, Chang Gung University, Taoyuan, Taiwan; Clinical Metabolomics Core Laboratory, Chang Gung Memorial Hospital, Taoyuan City, Taiwan
| | - Guo-Jen Huang
- Neuroscience Research Center, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan; Department of Biomedical Sciences, Chang Gung University, Taoyuan, Taiwan
| | - Yin-Cheng Huang
- College of Medicine, Chang Gung University, Taoyuan, Taiwan; Department of Neurosurgery, Chang Gung Memorial Hospital at Linkou Medical Center, Taoyuan, Taiwan
| | - Yu-Chien Liu
- College of Medicine, Chang Gung University, Taoyuan, Taiwan; Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Ying-Zu Huang
- Neuroscience Research Center, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan; Department of Neurology, Chang Gung Memorial Hospital at Linkou Medical Center, Taoyuan, Taiwan
| | - Chin-Song Lu
- Department of Neurology, Chang Gung Memorial Hospital at Linkou Medical Center, Taoyuan, Taiwan; Section of Movement Disorders, Department of Neurology, Chang Gung Memorial Hospital at Linkou Medical Center, Taoyuan, Taiwan
| | - Yi-Chieh Chen
- Neuroscience Research Center, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan; Department of Neurology, Chang Gung Memorial Hospital at Linkou Medical Center, Taoyuan, Taiwan
| | - Hao-Yuan Chen
- College of Medicine, Chang Gung University, Taoyuan, Taiwan; Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Yi-Chuan Cheng
- College of Medicine, Chang Gung University, Taoyuan, Taiwan; Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan; Neuroscience Research Center, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan.
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Liu HF, Huang ZG, Fang JG, Chen XH, Zhang Y, Hou LZ, Ma HZ, Guo W, Zhong Q. [Retrospective study of thyroid invasion and central lymph node metastasis in 124 patients with hypopharyngeal carcinoma]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2021; 56:956-961. [PMID: 34666444 DOI: 10.3760/cma.j.cn115330-20210222-00077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the characteristics of thyroid invasion and central lymph node metastasis of hypopharyngeal carcinoma, and the impact on survival rate and quality of life. Methods: A retrospective analysis of 124 cases (122 males and 2 females with age range from 36 to 78 years old) with laryngopharyngeal squamous cell carcinoma who were initially treated in the Department of Head and Neck Surgery, Beijing Tongren Hospital Affiliated to Capital Medical University from January 2014 to December 2017 was performed. The clinical data included tumor location, pathological T stage, pathological N stage, invasion of thyroid gland, central lymph node metastasis, surgical procedures and so on. Patients were grouped according to if presence of thyroid invasion and central lymph node metastasis. With follow-up, the survival was analyzed by Kaplan-Meier method, and tumor recurrence and metastasis were evaluated. Results: Of the patients, 12 patients had thyroid involvement and 5 patients had central lymph node metastasis. The incidence of thyroid involvement was 8.16% (8/98) in pyriform sinus, 1/18 in posterior pharyngeal wall and 3/8 in posterior cricoid wall, with statistically significant difference (χ2=15.076,P=0.008). The incidence of central lymph node metastasis was 1.02% (1/98) in pyriform sinus, 3/18 in posterior pharyngeal wall and 1/8 in posterior cricoid wall, also with statistically significant difference (χ2=11.205, P=0.008). There was no statistical correlation between thyroid invasion or central lymph node metastasis and gender, smoking or alcohol exposure history and tumor pathological differentiation (all P>0.05). The 3-year overall survival rate was 80.65% and the 3-year recurrence free rate was 85.48%. Totally 24 patients died in 3 years, including 4 cases in thyroid invasion group and 1 case in central lymph node metastasis group. Local recurrence occurred in 18 patients, including 4 cases in thyroid invasion group and 1 case in central lymph node metastasis group. There was no significant difference in survival between patients with and without thyroid invasion and central lymph node metastasis (all P>0.05). There were significantly difference in 3-year overall survival and relapse-free survival among the groups with different T stages, N stages, pathological stages and tumor pathological differentiation levels (all P<0.05). There were significantly differences in the levels of serum calcium and FT3 between the groups with or without thyroid invasion and central lymph node metastasis (all P<0.05). Conclusion: The incidences of thyroid invasion and central lymph node metastasis of hypopharyngeal carcinoma are rare, and the risk of occurrence is related to the primary site of tumor. Comprehensive evaluation, correct decision-making and accurate treatment could be helpful to cure radically the tumor, to prevent recurrence and to improve the quality of life of patients.
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Affiliation(s)
- H F Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Z G Huang
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - J G Fang
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - X H Chen
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Y Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - L Z Hou
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - H Z Ma
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - W Guo
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Q Zhong
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
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Zhang QH, Hou BS, Li YY, Zhu GY, Liu HF, Zhang GA. Effective corrosion inhibition of mild steel by eco-friendly thiourea functionalized glucosamine derivatives in acidic solution. J Colloid Interface Sci 2020; 585:355-367. [PMID: 33310312 DOI: 10.1016/j.jcis.2020.11.073] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [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: 08/11/2020] [Revised: 11/17/2020] [Accepted: 11/20/2020] [Indexed: 11/15/2022]
Abstract
In the view of environmental protection and sustainable development, the application of green effective inhibitors for metal corrosion in industry field is of great significance. In this work, two thiourea functionalized glucosamine derivatives, 5-hydroxy-1-phenyl-4-(1,2,3,4-tetrahydroxybutyl)imidazolidine-2-thione (GA-1) and 1-phenyl-3-(2,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-3-yl)thiourea (GA-2), were synthesized as eco-friendly corrosion inhibitors for mild steel (MS) in 1 M HCl solution, and their inhibition performance were evaluated by electrochemical tests and surface analyses. The electrochemical tests and surface analyses indicate that both GA-1 and GA-2 have high inhibition performance. Especially for GA-2, the inhibition efficiency reaches 97.7% with a concentration of 0.64 mM. Theoretical calculations were also conducted to elucidate the adsorption mechanism of GA-1 and GA-2 on MS surface.
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Affiliation(s)
- Q H Zhang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - B S Hou
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Y Y Li
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - G Y Zhu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - H F Liu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China; State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 410074, PR China
| | - G A Zhang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China.
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17
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Niu J, Li W, Liang C, Wang X, Yao X, Yang RH, Zhang ZS, Liu HF, Liu FY, Pei SH, Li WQ, Sun H, Fang D, Xie SQ. EGF promotes
DKK1
transcription in hepatocellular carcinoma by enhancing the phosphorylation and acetylation of histone H3. Sci Signal 2020; 13:13/657/eabb5727. [DOI: 10.1126/scisignal.abb5727] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jie Niu
- Institute for Innovative Drug Design and Evaluation, School of Pharmacy, Henan University, N. Jinming Ave., Kaifeng 475004, China
| | - Wei Li
- Institute for Innovative Drug Design and Evaluation, School of Pharmacy, Henan University, N. Jinming Ave., Kaifeng 475004, China
| | - Chao Liang
- Institute for Innovative Drug Design and Evaluation, School of Pharmacy, Henan University, N. Jinming Ave., Kaifeng 475004, China
| | - Xiao Wang
- Institute for Innovative Drug Design and Evaluation, School of Pharmacy, Henan University, N. Jinming Ave., Kaifeng 475004, China
| | - Xin Yao
- Institute for Innovative Drug Design and Evaluation, School of Pharmacy, Henan University, N. Jinming Ave., Kaifeng 475004, China
| | - Ruo-Han Yang
- Institute for Innovative Drug Design and Evaluation, School of Pharmacy, Henan University, N. Jinming Ave., Kaifeng 475004, China
| | - Zhan-Sheng Zhang
- Institute for Innovative Drug Design and Evaluation, School of Pharmacy, Henan University, N. Jinming Ave., Kaifeng 475004, China
| | - Han-Fang Liu
- Institute for Innovative Drug Design and Evaluation, School of Pharmacy, Henan University, N. Jinming Ave., Kaifeng 475004, China
| | - Fan-Ye Liu
- Institute for Innovative Drug Design and Evaluation, School of Pharmacy, Henan University, N. Jinming Ave., Kaifeng 475004, China
| | - Shu-Hua Pei
- Institute for Innovative Drug Design and Evaluation, School of Pharmacy, Henan University, N. Jinming Ave., Kaifeng 475004, China
| | - Wen-Qi Li
- Institute for Innovative Drug Design and Evaluation, School of Pharmacy, Henan University, N. Jinming Ave., Kaifeng 475004, China
| | - Hua Sun
- Institute for Innovative Drug Design and Evaluation, School of Pharmacy, Henan University, N. Jinming Ave., Kaifeng 475004, China
| | - Dong Fang
- Institute for Innovative Drug Design and Evaluation, School of Pharmacy, Henan University, N. Jinming Ave., Kaifeng 475004, China
| | - Song-Qiang Xie
- Institute for Innovative Drug Design and Evaluation, School of Pharmacy, Henan University, N. Jinming Ave., Kaifeng 475004, China
- Institute of Chemical Biology, School of Pharmacy, Henan University, N. Jinming Ave., Kaifeng 475004, China
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18
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Chen B, Zhang S, Tian YA, Liu HF, Liu DH, Xue X, Li RJ, Hu XX, Guan JY, Tang WX, Xu HE. [Study on syndromic deafness caused by novel pattern of compound heterozygous variants in the CDH23 gene]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2020; 55:822-829. [PMID: 32911884 DOI: 10.3760/cma.j.cn115330-20191015-00629] [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 pathogenic variants of a family with syndromic deafness by high-throughput sequencing. Methods: The family was from Puyang City, Henan Province, and had four members, including two with syndromic deafness. The proband and his sister had congenital deafness, and their parents had normal phenotypes. The clinical phenotype of the family was characterized using clinical examinations and pedigree analysis. The clinical examinations included imaging examination, audiometry (pure tone audiometry, acoustic immittance, brainstem auditory evoked potential, and otoacoustic emission), vestibular function test, and ophthalmic examination (visual acuity test, visual field test, fundus examination, visual evoked potential, and electroretinogram). Target exome sequencing of 129 known deafness genes and bioinformatics analysis were used to screen suspected pathogenic variants. Sanger sequencing and minigene assay were used to verify and functionally investigate the mutation detected, respectively. According to the standards and guidelines for interpreting genetic variants proposed by the American College of Medical Genetics and Genomics, the variants c.6049G>A and c.8699A>G were classified as pathogenic/likely pathogenic, and the variant c.9856C>G was classified as variants of uncertain significance. Results: The probands and his sister had severe sensorineural hearing loss with decreased binocular vision, night blindness, decreased peripheral visual field sensitivity and partial visual field defect, and normal vestibular function. Both of them had three CDH23 mutations, including CDH23 (NM_022124.5) c.6049G>A (p.Gly2017Ser),c.9856C>G (p.His3286Asp), and c.8699A>G (p. Asp2900Gly), The first two were inherited from the father, and the last one was from the mother. The missense variants c.9856C>G and c.8699A>G were not included in the gnomad database. The missense mutation c.6049G>A was located in the last position of exon 46 and was predicted to affect splicing by bioinformatics software. The minigene experiment showed that the mutation cause exon skipping of exon 46, resulting in an abnormal protein. Conclusions: Compound heterozygous variations of the CDH23 are the leading cause of USH1D in the family. This study confirms that the compound heterozygosity of splicing and missense variants of the CDH23 gene could lead to USH1D.
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Affiliation(s)
- B Chen
- Department of Otology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - S Zhang
- Precision Medicine Center, Academy of Medical Science, Zhengzhou University, Zhengzhou 450052, China
| | - Y A Tian
- Beijing Genomics Institute College, Zhengzhou University, Zhengzhou 450052, China; Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou 450052, China
| | - H F Liu
- Precision Medicine Center, Academy of Medical Science, Zhengzhou University, Zhengzhou 450052, China
| | - D H Liu
- Application Center for Precision Medicine Research, the Second Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - X Xue
- Precision Medicine Center, Academy of Medical Science, Zhengzhou University, Zhengzhou 450052, China
| | - R J Li
- Precision Medicine Center, Academy of Medical Science, Zhengzhou University, Zhengzhou 450052, China
| | - X X Hu
- Precision Medicine Center, Academy of Medical Science, Zhengzhou University, Zhengzhou 450052, China
| | - J Y Guan
- Precision Medicine Center, Academy of Medical Science, Zhengzhou University, Zhengzhou 450052, China
| | - W X Tang
- Precision Medicine Center, Academy of Medical Science, Zhengzhou University, Zhengzhou 450052, China; Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou 450052, China; Application Center for Precision Medicine Research, the Second Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - H E Xu
- Precision Medicine Center, Academy of Medical Science, Zhengzhou University, Zhengzhou 450052, China; Application Center for Precision Medicine Research, the Second Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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19
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Abstract
Objective: To analyze the prognostic value of myocardial injury in patients with COVID-19. Method: Confirmed cases of COVID-19 patients admitted from January 31st to February 5th at isolation ward of Renmin Hospital of Wuhan University were divided into non-survival group and survival group according to the clinical outcomes 5 weeks after admission. Data including demographics, comorbidities, vital signs, laboratory results were obtained. Cardiac injury was defined as serum concentration of high sensitivity cardiac troponin I (hs-cTnI) above 0.04 μg/L. Univariate and multivariate Cox regression were used to analyze the prognostic value of myocardial injury in patients with COVID-19. Kaplan-Meier analysis was used to plotted survival curve and analyze the impact of myocardial injury on the survival outcome of COVID-19 patients. Results: A total of 202 patients were included, the age was 63 (51, 70) years old, 88 (43.6%) of them were male, 85 (42.1%) of them had comorbidities, 125 (61.9%) of them were severely to critically ill. Till March 11, 33 patients died, all of them were critically ill patients. The age, proportion of males, comorbidities, respire rate, serum levels of hs-cTnI and incidence of heart failure in the non-survival group were significantly higher than those in the survival group (all P<0.05). The hospitalization time of non-survival group was significantly shorter than that of survival group (6(4, 9) vs. 32(23, 36), P<0.001). Myocardial injury was an important prognostic factor of COVID-19 (HR=5.382, 95%CI 2.404-12.05, P<0.001). Kaplan-Meier survival analysis showed that the presence of myocardial injury was significantly associated with the reduced survival rate among COVID-19 patients (P<0.001). Conclusion: Myocardial injury is an important prognostic factor of COVID-19, COVID-19 patients with myocardial injury face a significantly higher risk of death.
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Affiliation(s)
- L Wang
- Department of Cardiology, Renmin Hospital of Wuhan University, Hubei Province, Wuhan 430060, China
| | - W B He
- Department of Cardiology, Renmin Hospital of Wuhan University, Hubei Province, Wuhan 430060, China
| | - X M Yu
- Department of Cardiology, Renmin Hospital of Wuhan University, Hubei Province, Wuhan 430060, China
| | - H F Liu
- Department of Cardiology, Renmin Hospital of Wuhan University, Hubei Province, Wuhan 430060, China
| | - W J Zhou
- Department of Cardiology, Renmin Hospital of Wuhan University, Hubei Province, Wuhan 430060, China
| | - H Jiang
- Department of Cardiology, Renmin Hospital of Wuhan University, Hubei Province, Wuhan 430060, China
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20
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Liu HF, Huang HW, Bai SX, Gong YL, Wu CX, Jin ZM, Wang YY, Yang Q, Zhang J, Qiu HY, Chen SN, Pan JL. [Chromosomal aberrations detection in chronic lymphocytic leukemia by conventional cytogenetics using DSP30 and IL-2]. Zhonghua Xue Ye Xue Za Zhi 2020; 41:143-148. [PMID: 32135632 PMCID: PMC7357944 DOI: 10.3760/cma.j.issn.0253-2727.2020.02.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Objective: To study the value of unmethylated cytosine guanine dinucleotide oligodeoxynucleotide (DSP30) and IL-2 in the conventional cytogenetic (CA) detection of the chromosomal aberrations in chronic lymphocytic leukemia (CLL) . Methods: Bone marrow or peripheral blood cells of CLL patients were cultured with DSP30 plus IL-2 for 72 h, following which R-banding analysis was conducted. Fluorescence in situ hybridization (FISH) was performed in 85 patients. CA results were compared with data obtained by FISH. Results: Among 89 CLL patients, the success rate of chromosome analysis was 94.38% (84/89) . Clonal aberrations were detected in 51 patients (51/84, 60.71%) . Of them, 27 (27/51, 52.94%) were complex karyotype. Among 85 CLL patients tested by FISH, chromosomal abnormalities were detected in 74 (74/85, 87.06%) patients, of which 2 (2/74) patients were complex karyotypes, accounting for 2.70%. Of the 85 CLL patients examined by FISH, 50 had abnormal karyotype analysis, 30 had normal karyotype, 5 failed to have chromosome analysis. Among them, 25 cases showed clonal aberrations by FISH assay but normal by CA, and 4 cases were normal by FISH but displayed aberrations in chromosome analysis, and totally 78 (91.76%) cases with abnormality detected by the combination of the two methods. The frequency of 13q- abnormality detected by FISH was significantly higher than that by CA analysis (69.41%vs 16.67%, P<0.001) , while the frequency of 11q-,+12 and 17p- detected by two methods showed no significant difference (P>0.05) . The detection rate of complex abnormalities in conventional karyotype analysis was higher than that in FISH (50.98%vs 2.70%) . In addition, 11 low-risk and 9 intermediate-risk patients according to FISH results showed complex karyotype by cytogenetics, and were classified into high-risk cytogenetic subgroup. Conclusion: DSP30 and IL-2 are effective in improving the detection rate of CA in CLL patients (60.71%) and CA is more effective to detect complex karyotype. However, FISH had a higher overall abnormality detection rate (87.06%) than CA, especially for 13q-. The combination of CA and FISH not only enhanced the detection rate of clonal aberrations to 91.76%, but also provided more precise prognosis stratification for CLL patients, thus to provide more information for clinical implication.
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Affiliation(s)
- H F Liu
- Department of Hematology, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
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21
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Guo YP, Li XY, Liu HF, Zhang M, Shi L, Zhao XJ, Li JZ, Liu XY, Cui J. [Clinical analysis of 7 cases with anti-Caspr2 antibody-associated autoimmune encephalitis]. Zhonghua Yi Xue Za Zhi 2020; 100:513-515. [PMID: 32164102 DOI: 10.3760/cma.j.issn.0376-2491.2020.07.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the clinical features, laboratory tests, imaging features, electroencephalogram (EEG) manifestations, treatment and prognosis of anti-CASPR2 antibody-associated autoimmune encephalitis with the purpose to improve the understanding of the disease. Methods: Seven patients diagnosed with CASPR2 antibody-associated encephalitis in the Fifth and first Affiliated Hospital of Zhengzhou University from January 2017 to January 2019 were selected. The clinical manifestations, course of disease, imaging, treatment plan and prognosis of the patients were retrospectively analyzed. Results: Of the 7 patients, 4 were male and 3 were female. The median age of onset was 34 years old (range, 11-66 years). Seizures (6/7), memory decline(5/7), and neuropsychiatric disorders (4/7) were common clinical manifestations. CASPR2 antibody was detected in the CSF of 3 patients (3/7) and the serum of all patients (7/7). Notable imaging changes were observed in 5 patients (5/7). All patients received immunotherapy and were followed up for 1 month to 2 years. One patient was diagnosed with rectal cancer with a poor prognosis; all the others got a good prognosis. Conclusions: CASPR2 antibody-related encephalitis is a rare autoimmune disease. It is considered to present with seizures, memory loss, psychiatric symptoms, dizziness and sleep disorders as the main clinical manifestations. Early identification and treatment of the disease can help the patients achieve a good prognosis.
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Affiliation(s)
- Y P Guo
- Department of Neurology, Fifth Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - X Y Li
- Department of Neurosurgery, First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - H F Liu
- Department of Neurology, Fifth Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - M Zhang
- Department of Neurology, Fifth Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - L Shi
- Department of Neurology, Fifth Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - X J Zhao
- Department of Neurology, Fifth Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - J Z Li
- Department of Neurology, Fifth Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - X Y Liu
- Department of Neurology, Fifth Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - J Cui
- Department of Radiology, Henan Provincial People's Hospital, Zhengzhou 450003, China
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22
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Wang LQ, Wang Y, Jin H, Yan L, Liu HF, Liang J, Zhang LC. Expressions of SALL4, Bmi-1 and p27 and their correlation in laryngeal squamous cell carcinoma. J BIOL REG HOMEOS AG 2019; 33:1533-1538. [PMID: 31635448 DOI: 10.23812/19-97-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- L Q Wang
- Department of Otolaryngology, Hongqi Hospital Affiliated to Mudanjiang Medical University, Mudanjiang, China
| | - Y Wang
- Medical Functional Laboratory, Mudanjiang Medical University, Mudanjiang Medical University, Mudanjiang, China
| | - H Jin
- Department of Clinical Laboratory, Hongqi Hospital Affiliated to Mudanjiang Medical University, Mudanjiang, China
| | - L Yan
- Department of Histology and Embryology, Mudanjiang Medical University, Mudanjiang, China
| | - H F Liu
- Heilongjiang Key Laboratory of Anti-fibrosis Biotherapy, Mudanjiang Medical University, Mudanjiang, China
| | - J Liang
- Stem Cell Institute, Mudanjiang Medical University, Mudanjiang, China
| | - L C Zhang
- Department of Otolaryngology, Hongqi Hospital Affiliated to Mudanjiang Medical University, Mudanjiang, China
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23
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Jin CM, Gong FY, Gui JQ, Li RH, Wang YY, Xu CY, Lin Y, Liu HF. Correlation between the expression of Rap1GTPase activating protein and the clinicopathological features of invasive breast cancer. J BIOL REG HOMEOS AG 2019; 33:1485-1491. [PMID: 31496205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Affiliation(s)
- C M Jin
- Clinical Lab, Affiliated Hongqi Hospital of Mudanjiang Medical University, Mudanjiang, Heilongjiang, China
| | - F Y Gong
- Clinical Lab, Affiliated Hongqi Hospital of Mudanjiang Medical University, Mudanjiang, Heilongjiang, China
| | - J Q Gui
- Department of Pathogenic Microbiology, Mudanjiang Medical University, Mudanjiang, Heilongjiang, China
| | - R H Li
- Clinical Lab, Affiliated Hongqi Hospital of Mudanjiang Medical University, Mudanjiang, Heilongjiang, China
| | - Y Y Wang
- Basic Medical College, Harbin Medical University, Harbin, Heilongjiang, China
| | - C Y Xu
- Pathology Department, Mudanjiang Tumor Hospital, Mudanjiang, Heilongjiang, China
| | - Y Lin
- Department of Thoracic Surgery, Affiliated Hongqi Hospital of Mudanjiang Medical University, Mudanjiang, Heilongjiang, China
| | - H F Liu
- Department of Biochemistry and Molecular Biology, Mudanjiang Medical University, Mudanjiang City, China
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24
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Guo W, Yin GF, Huang JW, Yang Z, Liu HF, Zhang Y, Xu HB, Liu ZY, Huang ZG. [Effect of vascular changes on prognosis after induced chemotherapy for advanced hypopharyngeal carcinoma]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 54:591-596. [PMID: 31434372 DOI: 10.3760/cma.j.issn.1673-0860.2019.08.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the clinical characteristics of two groups(vascular classification declines or not in narrow band imaging (NBI) of patients with advanced hypopharyngeal carcinoma after induced chemotherapy, to follow-up and compare the survival differences between the two groups, and to explore the effect of vascular changes on clinical prognosis after induced chemotherapy in patients with advanced hypopharyngeal carcinoma. Methods: Clinical data of 56 patients with advanced hypopharyngeal carcinoma from August 2014 to September 2016 in Beijing Tongren Hospital, Capital Medical University were collected. The patients were divided into two groups according to NBI vascular classification declines or not after induced chemotherapy. The survival of patients and the impact of different factors on the prognosis were retrospectively analyzed. SPSS 24.0 statistical software was used for analysis. Frequency data were compared between the two groups using χ(2) test. Kaplan-Meier method and Cox regression analysis were employed for survival analysis and Log-Rank test was used for inter-group comparison, P<0.05 was statistically significant. Results: There was significant difference in overall survival rate(OS) between two groups of patients with advanced hypopharyngeal carcinoma after induced chemotherapy (P<0.05). Multivariate analysis showed that NBI vascular classification changes after induced chemotherapy was the impact factor for prognosis of advanced hypopharyngeal carcinoma after induced chemotherapy. Conclusion: In addition to recurrence and metastasis, NBI vascular classification changes is the important impact factor for prognosis of advanced hypopharyngeal carcinoma after induced chemotherapy. Patients with NBI vascular classification declines have significant survival benefit. The patients with advanced hypopharyngeal carcinoma should be checked with NBI examination before and after induced chemotherapy. NBI should be included in the routine screening indicators for prognosis of advanced hypopharyngeal carcinoma.
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Affiliation(s)
- W Guo
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Captical Medical University, Beijing 100730, China
| | - G F Yin
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Captical Medical University, Beijing 100730, China
| | - J W Huang
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Captical Medical University, Beijing 100730, China
| | - Z Yang
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Captical Medical University, Beijing 100730, China
| | - H F Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Captical Medical University, Beijing 100730, China
| | - Y Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Captical Medical University, Beijing 100730, China
| | - H B Xu
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Captical Medical University, Beijing 100730, China
| | - Z Y Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Captical Medical University, Beijing 100730, China
| | - Z G Huang
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Captical Medical University, Beijing 100730, China
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25
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Hsieh YC, Chiang MC, Huang YC, Yeh TH, Shih HY, Liu HF, Chen HY, Wang CP, Cheng YC. Pparα deficiency inhibits the proliferation of neuronal and glial precursors in the zebrafish central nervous system. Dev Dyn 2018; 247:1264-1275. [DOI: 10.1002/dvdy.24683] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 09/12/2018] [Accepted: 10/16/2018] [Indexed: 12/28/2022] Open
Affiliation(s)
- Yen-Che Hsieh
- Graduate Institute of Biomedical Sciences, College of Medicine; Chang Gung University; Taoyuan Taiwan
| | - Ming-Chang Chiang
- Department of Life Science; Fu Jen Catholic University; New Taipei City Taiwan
| | - Yin-Cheng Huang
- College of Medicine; Chang Gung University; Taoyuan Taiwan
- Department of Neurosurgery; Chang Gung Memorial Hospital; Linkou, Taoyuan Taiwan
| | - Tu-Hsueh Yeh
- College of Medicine; Chang Gung University; Taoyuan Taiwan
- Neuroscience Research Center, Chang Gung Memorial Hospital; Linkou, Taoyuan Taiwan
- Section of Movement Disorders, Department of Neurology; Chang Gung Memorial Hospital; Linkou, Taoyuan Taiwan
- Department of Neurology; Taipei Medical University Hospital; Taipei Taiwan
| | - Hung-Yu Shih
- Graduate Institute of Biomedical Sciences, College of Medicine; Chang Gung University; Taoyuan Taiwan
| | - Han-Fang Liu
- Graduate Institute of Biomedical Sciences, College of Medicine; Chang Gung University; Taoyuan Taiwan
| | - Hao-Yuan Chen
- Graduate Institute of Biomedical Sciences, College of Medicine; Chang Gung University; Taoyuan Taiwan
| | - Chien-Ping Wang
- School of Medicine, College of Medicine, Chang Gung University; Taoyuan Taiwan
| | - Yi-Chuan Cheng
- Graduate Institute of Biomedical Sciences, College of Medicine; Chang Gung University; Taoyuan Taiwan
- College of Medicine; Chang Gung University; Taoyuan Taiwan
- Neuroscience Research Center, Chang Gung Memorial Hospital; Linkou, Taoyuan Taiwan
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26
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Su JP, Liu HF, Zhang HL, He YJ, Nie Y. Effects of different degrees of depression on inflammatory response and immune function in patients with ovarian cancer. J BIOL REG HOMEOS AG 2018; 32:1225-1230. [PMID: 30334417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The aim of this study was to explore the effect of depression of different degrees on inflammatory response and immune function in patients with ovarian cancer. One hundred and eight cases of ovarian cancer according to the Federation Internationale of Gynecologie and Obstetrigue (FIGO) stage II~III who visited the Gynecology Department of Affiliated HongQi Hospital of MuDanJiang Medical University between September 2015 and May 2017 were enrolled in the study. After being hospitalized, they were divided into two groups according to their Beck Depression Inventory (BDI) scores. The total score of BDI is 63, with 0~4 for the normal group (25 cases), 5~13 for the mild depression group (24 cases), 14~20 for the moderate depression group (28 cases), and 21~63 for the severe depression group (31 cases). The immune function, inflammatory reaction, tumor markers [CA125, human epididymis protein-4 (HE4), insulin-like growth factor-I (IGF-I)], platelet technology and D-dimer index were compared between the four groups. The results showed that there were different levels of depression in patients with ovarian cancer in II~III stage, and the degree of depression could stimulate the level of serum-6, and TNF -α in serum increased. The proportion of CD3+, CD4+ and NK cells in patients with severe depression decreased, and their immunity also decreased. Depression increased the levels of CA125, HE4 and IGF-I in serum and ascites of ovarian cancer patients, and increased the risk of tumor progression and recurrence. Hypercoagulability existed in patients with ovarian cancer, and tumor associated depression could increase platelet count in plasma and increase D-dimer level. To sum up, depression can affect the level of micro inflammation in patients with ovarian cancer. In particular, depression can reduce cellular immune responses, affect the progression free survival of ovarian cancer patients, and reduce their overall survival rate.
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Affiliation(s)
- J P Su
- Department of Medical Psychology, School of Public Health of MuDanJiang Medical University, Mudanjiang City, China
| | - H F Liu
- Department of Molecular Biology and Biochemistry, Basic Medical College of MuDanJiang Medical University, Mudanjiang City, China
| | - H L Zhang
- Department of Medical Psychology, School of Public Health of MuDanJiang Medical University, Mudanjiang City, China
| | - Y J He
- Department of Medical Psychology, School of Public Health of MuDanJiang Medical University, Mudanjiang City, China
| | - Y Nie
- Department of Immunology, Basic Medical College of MuDanJiang Medical University, Mudanjiang City, China
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Abstract
Hexanucleotide repeat expansions in the C9orf72 gene are a common genetic cause of familial and sporadic amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). However, the function of C9orf72 in neural development and the pathogenic mechanism underlying neurodegeneration are unknown. We found that disrupting C9orf72 expression by using C9orf72 constructs that lack the complete DENN domain result in reduced GTPase activity in zebrafish embryos, demonstrating the indispensability of the complete DENN domain. This effect was phenocopied by knocking down endogenous C9orf72 expression by using morpholinos. C9orf72-deficient zebrafish embryos exhibited impaired axonogenesis and motility defects. The C9orf72 deficiency upregulated the expression of tp53 and caused neuronal apoptosis. Knockdown Tp53 in the C9orf72-deficient embryos rescued only the apoptotic phenotype but not the phenotype with axonal and motility defects. The C9orf72 deficiency also induced ccng1 (encodes Cyclin G1) mRNA expression, and injection of a dominant-negative Cyclin G1 construct rescued the axonal impairment, apoptosis, and motility defects in the C9orf72-deficient embryos. Our results revealed the GTPase activity of C9orf72 and demonstrated that Cyclin G1 is an essential downstream mediator for C9orf72 in neural development and motility. Furthermore, downregulating Cyclin G1 was sufficient to rescue all the defects caused by C9orf72 deficiency. In summary, we revealed a novel regulatory mechanism underlying the role of C9orf72 in neurological and motility defects. This result facilitates understanding the function of the C9orf72 gene in the developing nervous system and provides a potential mechanism underlying the pathogenesis of ALS-FTD.
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Affiliation(s)
- Tu-Hsueh Yeh
- Neuroscience Research Center, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan; Section of Movement Disorders, Department of Neurology, Chang Gung Memorial Hospital at Linkou Medical Center, Taoyuan, Taiwan; Department of Neurology, Taipei Medical University Hospital, Taipei, Taiwan; School of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Han-Fang Liu
- College of Medicine, Chang Gung University, Taoyuan, Taiwan; Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Yu-Wen Li
- College of Medicine, Chang Gung University, Taoyuan, Taiwan; Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Chin-Song Lu
- Neuroscience Research Center, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan; Section of Movement Disorders, Department of Neurology, Chang Gung Memorial Hospital at Linkou Medical Center, Taoyuan, Taiwan
| | - Hung-Yu Shih
- College of Medicine, Chang Gung University, Taoyuan, Taiwan; Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Ching-Chi Chiu
- Neuroscience Research Center, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan
| | - Sheng-Jia Lin
- College of Medicine, Chang Gung University, Taoyuan, Taiwan; Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Yin-Cheng Huang
- College of Medicine, Chang Gung University, Taoyuan, Taiwan; Department of Neurosurgery, Chang Gung Memorial Hospital at Linkou Medical Center, Taoyuan, Taiwan.
| | - Yi-Chuan Cheng
- Neuroscience Research Center, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan; Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan.
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Wang CW, Lin JW, Lue CS, Liu HF, Kuo CN, Mole RA, Gardner JS. Magnetic correlations in the intermetallic antiferromagnet Nd 3Co 4Sn 13. J Phys Condens Matter 2017; 29:435801. [PMID: 28825593 DOI: 10.1088/1361-648x/aa8756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Specific heat, magnetic susceptibility, and neutron scattering have been used to investigate the nature of the spin system in the antiferromagnet Nd3Co4Sn13. At room temperature Nd3Co4Sn13 has a cubic, Pm-3n structure similar to Yb3Rh4Sn13. Antiferromagnetic interactions between, Nd3+ ions dominate the magnetic character of this sample and at 2.4 K the Nd spins enter a long range order state with a magnetic propagation vector q = (0 0 0) with an ordered moment of 1.78(2) µB at 1.5 K. The magnetic Bragg intensity grows very slowly below 1 K, reaching ~2.4 µB at 350 mK. The average magnetic Nd3+ configuration corresponds to the 3D irreducible representation Γ7. This magnetic structure can be viewed as three sublattices of antiferromagnetic spin chains coupled with each other in the 120°-configuration. A well-defined magnetic excitation was measured around the 1 1 1 zone centre and the resulting dispersion curve is appropriate for an antiferromagnet with a gap of 0.20(1) meV.
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Affiliation(s)
- C W Wang
- Neutron Group, National Synchrotron Radiation Research Center, Hsinchu 30077, Taiwan
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Liu HF, Liu M, Xu YL. [Analysis of high-risk HPV infection and cervical cytologic screening in HIV positive women]. Zhonghua Fu Chan Ke Za Zhi 2017; 51:734-738. [PMID: 27788739 DOI: 10.3760/cma.j.issn.0529-567x.2016.10.005] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analysis of high-risk HPV infection and cervical cytologic screening in HIV positive women, and to study the relationship between HIV infection and high-risk HPV infection. Methods: From June 2011 to May 2016, 58 cases of HIV positive women in Beijing Ditan Hospital for cervical screening were selected as the experimental group, and 59 cases of HIV negative women were selected as control group, thin-prep cytologic test(TCT)and HPV detection were used in two groups of subjects. The abnormal rate of TCT and the incidence rate of HPV were observed in the two groups, the relationship between HIV infection and HPV infection was analyzed. Results: TCT abnormal rate(91.4%, 53/58)of the experimental group was obviously higher than that of the control group(45.8%, 27/59), with statistically significant(χ2=12.365, P=0.036). High-risk HPV infection incidence(34.5%, 20/58)of the experimental group was significantly higher than that of the control group(16.9%, 10/59), with traditional significance(χ2=10.359, P=0.041). CD4+ T lymphocytes and CD4+/CD8+ ratio of high-risk HPV positive patients had significant difference with high-risk HPV negative patients(χ2=10.378, P=0.042; χ2=9.245, P=0.045). The proportion of different AIDS clinical stages of high-risk HPV positive patients had obvious difference with high-risk HPV negative patients(P<0.05). Conclusion: HIV positive women maybe have a large proportion of abnormal TCT and the infection with high-risk HPV, and infection of high-risk HPV in HIV positive women has relationship with CD4+ T lymphocytes, CD4+/CD8+ ratio and AIDS clinical stage.
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Affiliation(s)
- H F Liu
- Department of Obstetrics and Gynecology, Beijing Ditan Hospital of Capital Medical University, Beijing 100015, China
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Ma YQ, Liu HF, Hou BX. [Inferior alveolar nerve injury due to intrusion of root canal sealer: a case report]. Zhonghua Kou Qiang Yi Xue Za Zhi 2017; 52:108. [PMID: 28253586 DOI: 10.3760/cma.j.issn.1002-0098.2017.02.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Y Q Ma
- Department of Cariology and Endodontology, Capital Medical University School of Stomatology, Beijiing 100050, China
| | - H F Liu
- Department of Oral and Maxillofacial Surgery, Capital Medical University School of Stomatology, Beijing 100050, China
| | - B X Hou
- Department of Cariology and Endodontology, Capital Medical University School of Stomatology, Beijiing 100050, China
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Chen FB, Yao QL, Liu HF, Fang P. Evaluation on the germplasm of maize (Zea mays L.) landraces from southwest China. Genet Mol Res 2016; 15:gmr-15-04-gmr.15049160. [PMID: 28081280 DOI: 10.4238/gmr15049160] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [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
Because of their local adaptation and economic factors that limit the adoption of commercial hybrids, farmer-saved maize landraces are still grown over a considerable area concentrated in southwest China. To evaluate the potential of using maize landraces, the germplasm characteristics of 96 landraces from southwest China were evaluated at phenotypic, cellular, and molecular levels. The existence of high phenotypic variation and elite germplasm tolerant to low-N, low-P, as well as drought stress was observed. Of the total landraces, 81.25, 7.29, 5.21, and 2.08% were found with 0, 1, 2, 3, and 4 B chromosomes. Using 42 microsatellite (simple sequence repeat) loci, 246 alleles were detected among the landraces. The number of alleles per SSR locus varied from 2 to 10, averaging 5.67 allele per locus, which revealed a high level of genetic diversity of maize landraces in southwest China. Cluster analysis showed that 96 landraces could distinctly be clustered into four groups, which tended to associate with their geographic origins. We propose that the genetic diversity center of maize landraces in southwest China might be in Sichuan. A sharp genetic deviation from Hardy-Weinberg equilibrium was observed from heterozygosity deficiency and a considerable genetic variation was revealed within, rather than among, the landraces. Based on their germplasm characteristics, the innovation and utilization of maize landraces in southwestern China for theoretical and applied research could be achieved by constructing heterosis groups, developing inbred lines with high combining ability, and maintaining the landraces with elite germplasm and B chromosomes using bulked pollen.
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Affiliation(s)
- F B Chen
- Department of Life Sciences, Yangtze Normal University, Chongqing, China
| | - Q L Yao
- Department of Life Sciences, Yangtze Normal University, Chongqing, China
| | - H F Liu
- Department of Life Sciences, Yangtze Normal University, Chongqing, China
| | - P Fang
- Department of Life Sciences, Yangtze Normal University, Chongqing, China
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32
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Liu HF, Liu JS, Deng JH, Wu RR. Role of XRCC1 gene polymorphisms in non-small cell lung cancer cisplatin-based chemotherapy, and their effect on clinical and pathological characteristics. Genet Mol Res 2016; 15:gmr-15-04-gmr.15049084. [PMID: 28081275 DOI: 10.4238/gmr15049084] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Non-small cell lung cancer (NSCLC) is the most common cancer globally. The XRCC1 protein interacts with ligase and poly(ADP-ribose) polymerase to repair cisplatin-induced DNA damage. The authors of previous studies have reported XRCC1 Arg399Gln, Arg280His, and Arg194Trp polymorphisms and advanced NSCLC prognosis, but the results are inconclusive. We investigated the association between clinical outcome and XRCC1 Arg399Gln, Arg280His, and Arg194Trp polymorphisms in advanced NSCLC patients treated with cisplatin. We recruited 252 patients with advanced NSCLC (TNM stages: IIIB and IV) and used polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) to genotype the polymorphisms. Patients with the TT genotype of XRCC1 Arg194Trp showed a significantly better response to chemotherapy than those with the CC genotype. The GA+AA genotype of Arg194Trp was correlated with better response to chemotherapy than the wild-type form. The TT genotype of Arg194Trp was associated with longer survival time than the CC genotype. The TT genotype of Arg194Trp was correlated with lower risk of death from all causes than the CC genotype. The Arg194Trp polymorphisms interacted with squamous cell carcinoma and affected overall survival of advanced NSCLC. However, there was no association between Arg399Gln and Arg280His polymorphisms and response to cisplatin-based chemotherapy and overall survival in advanced NSCLC. The results suggest that the TT genotype of Arg194Trp is significantly associated with better response to chemotherapy and longer overall survival of advanced NSCLC patients than the wild-type form. Our investigation offers insight into the influence of XRCC1 gene polymorphisms on the treatment outcome of advanced NSCLC.
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Affiliation(s)
- H F Liu
- Department of Oncology, Ganzhou People's Hospital, Ganzhou, China
| | - J S Liu
- Department of Oncology, Ganzhou People's Hospital, Ganzhou, China
| | - J H Deng
- Department of Oncology, Ganzhou People's Hospital, Ganzhou, China
| | - R R Wu
- Department of Oncology, Ganzhou People's Hospital, Ganzhou, China
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Chen FB, Liu HF, Yao QL, Fang P. Evolution of mustard (Brassica juncea Coss) subspecies in China: evidence from the chalcone synthase gene. Genet Mol Res 2016; 15:gmr8045. [PMID: 27173323 DOI: 10.4238/gmr.15028045] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [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
To explore the phylogenetic relationship, genome donor, and evolutionary history of the polyploid mustard (Brassica juncea) from China, eighty-one sequences of the chalcone synthase gene (Chs) were analyzed in 43 individuals, including 34 B. juncea, 2 B. rapa, 1 B. nigra, 2 B. oleracea, 1 B. napus, 1 B. carinata, and 2 Raphanus sativus. A maximum likelihood analysis showed that sequences from B. juncea were separated into two well-supported groups in accordance with the A and B genomes, whereas the traditional phenotypic classification of B. juncea was not wholly supported by the molecular results. The SplitsTree analysis recognized four distinct groups of Brassicaceae, and the median-joining network analysis recognized four distinct haplotypes of Chs. The estimates of Tajima's D, Fu and Li's D, and Fu and Li's F statistic for the Chs gene in the B genome were negative, while those in the A genome were significant. The results indicated that 1) the Chs sequences revealed a high level of sequence variation in Chinese mustard, 2) both tree and reticulate evolutions existed, and artificial selection played an important role in the evolution of Chinese mustard, 3) the original parental species of Chinese mustard are B. rapa var. sinapis arvensis and B. nigra (derived from China), 4) nucleotide variation in the B genome was higher than that in the A genome, and 5) cultivated mustard evolved from wild mustard, and China is one of the primary origins of B. juncea.
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Affiliation(s)
- F B Chen
- Department of Life Sciences, Yangtze Normal University, Fuling, Chongqing, China
| | - H F Liu
- Department of Life Sciences, Yangtze Normal University, Fuling, Chongqing, China
| | - Q L Yao
- Department of Life Sciences, Yangtze Normal University, Fuling, Chongqing, China
| | - P Fang
- Department of Life Sciences, Yangtze Normal University, Fuling, Chongqing, China
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Tsai KJ, Hsu WC, Chuang WC, Chang JC, Tu YC, Tsai HJ, Liu HF, Wang FI, Lee SH. Emergence of a sylvatic enzootic formosan ferret badger-associated rabies in Taiwan and the geographical separation of two phylogenetic groups of rabies viruses. Vet Microbiol 2015; 182:28-34. [PMID: 26711025 DOI: 10.1016/j.vetmic.2015.10.030] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Revised: 09/17/2015] [Accepted: 10/28/2015] [Indexed: 11/16/2022]
Abstract
Taiwan had been declared rabies-free in humans and domestic animals for five decades until July 2013, when surprisingly, three Formosan ferret badgers (FB) were diagnosed with rabies. Since then, a variety of wild carnivores and other wildlife species have been found dead, neurologically ill, or exhibiting aggressive behaviors around the island. To determine the affected animal species, geographic areas, and environments, animal bodies were examined for rabies by direct fluorescent antibody test (FAT). The viral genomes from the brains of selected rabid animals were sequenced for the phylogeny of rabies viruses (RABV). Out of a total of 1016 wild carnivores, 276/831 (33.2%) Formosan FBs were FAT positive, with occasional biting incidents in 1 dog and suspected spillover in 1 house shrew. All other animals tested, including dogs, cats, bats, mice, house shrews, and squirrels, were rabies-negative. The rabies was badger-associated and confined to nine counties/cities in sylvatic environments. Phylogeny of nucleoprotein and glycoprotein genes from 59 Formosan FB-associated RABV revealed them to be clustered in two distinct groups, TWI and TWII, consistent with the geographic segregation into western and eastern Taiwan provided by the Central Mountain Range and into northern rabies-free and central-southern rabies-affected regions by a river bisecting western Taiwan. The unique features of geographic and genetic segregation, sylvatic enzooticity, and FB-association of RABV suggest a logical strategy for the control of rabies in this nation.
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Affiliation(s)
- K J Tsai
- Animal Health Research Institute, No.376, Chung-Cheng Rd., Tamsui District, New Taipei City 25158, Taiwan
| | - W C Hsu
- Animal Health Research Institute, No.376, Chung-Cheng Rd., Tamsui District, New Taipei City 25158, Taiwan
| | - W C Chuang
- Animal Health Research Institute, No.376, Chung-Cheng Rd., Tamsui District, New Taipei City 25158, Taiwan
| | - J C Chang
- Animal Health Research Institute, No.376, Chung-Cheng Rd., Tamsui District, New Taipei City 25158, Taiwan
| | - Y C Tu
- Animal Health Research Institute, No.376, Chung-Cheng Rd., Tamsui District, New Taipei City 25158, Taiwan
| | - H J Tsai
- Animal Health Research Institute, No.376, Chung-Cheng Rd., Tamsui District, New Taipei City 25158, Taiwan; School of Veterinary Medicine, National Taiwan University, No.1, Sec. 4, Roosevelt Rd., Taipei City, 10617, Taiwan
| | - H F Liu
- Department of Medical Research, Mackay Memorial Hospital, No.45, Minsheng Rd., Tamsui District, New Taipei City 25160, Taiwan
| | - F I Wang
- School of Veterinary Medicine, National Taiwan University, No.1, Sec. 4, Roosevelt Rd., Taipei City, 10617, Taiwan
| | - S H Lee
- Animal Drugs Inspection Branch, Animal Health Research Institute, No.21, Qiding, Zhunan Township, Miaoli County 35054, Taiwan.
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Liu HF, Ansah Antwi KK, Yakovlev NL, Tan HR, Ong LT, Chua SJ, Chi DZ. Synthesis and phase evolutions in layered structure of Ga2S3 semiconductor thin films on epiready GaAs (111) substrates. ACS Appl Mater Interfaces 2014; 6:3501-3507. [PMID: 24397590 DOI: 10.1021/am4056535] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We report on synthesis and properties of p-type Ga2S3 semiconductor thin films that were prepared by sulfurizing epiready n-type GaAs (111) surface at elevated temperatures. Comparisons of structural and optical properties among the thin films, peeling-off resulted microtubes, and the remains after peeling-off give a clear clue to the crystal growth and phase evolutions of Ga2S3. Three layers of Ga2S3 are clearly identified in the thin films. They are layer i, cubic Ga2S3 epitaxially grown on the GaAs (111) substrate; layer ii, polycrystalline cubic Ga2S3 on top of layer-i; and layer iii, monoclinic and/or hexagonal Ga2S3 on top of layer ii. The onset of peeling-off occurred in layer i and/or at the interface between layer i and ii. Both the phase evolutions and the location of peeling-off are associated with a Ga out diffusion growth mechanism. Absorption spectroscopy revealed a direct bandgap of 3.0 eV, whereas photoluminescence spectra showed defects (excited Ga vacancies) related red (1.62 eV) and green (2.24 eV) emissions of the Ga2S3 films; both are qualitatively consistent with those reported values obtained at lower sample temperatures from Ga2S3 single crystals. These results, together with a large on/off current ratio (i.e., ∼14 at a bias of 4.0 V) of the resultant hetero p-Ga2S3/n-GaAs junction under a blue laser (405 nm, 3.0 mW) illumination, shed light on consequent integrations of Ga2S3- and GaAs-based optoelectronic devices, e.g., high-power laser radiation sensors.
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Affiliation(s)
- H F Liu
- Institute of Materials Research and Engineering (IMRE), A*STAR (Agency for Science, Technology and Research) , 3 Research Link, Singapore 117602, Singapore
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He SK, Zhang WJ, Liu HF, Xue GM, Li BH, Xiao H, Wen ZC, Han XF, Zhao SP, Gu CZ, Qiu XG. Wire network behavior in superconducting Nb films with diluted triangular arrays of holes. J Phys Condens Matter 2012; 24:155702. [PMID: 22436779 DOI: 10.1088/0953-8984/24/15/155702] [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] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We present results of transport measurements on superconducting Nb films with diluted triangular arrays (honeycomb and kagomé) of holes. The patterned films have large disk-shaped interstitial regions even when the edge-to-edge separations between nearest neighboring holes are comparable to the coherence length. Changes in the field interval of two consecutive minima in the field dependent resistance R(H) curves are observed. In the low field region, fine structures in the R(H) and T(c)(H) curves are identified in both arrays. Comparison of experimental data with calculation results reveals that these structures observed in honeycomb and kagomé hole arrays resemble those in wire networks with triangular and T(3) symmetries, respectively. The findings suggest that even in these specified periodic hole arrays with very large interstitial regions, the low field fine structures are determined by the connectivity of the nanostructures.
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Affiliation(s)
- S K He
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
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Wang SG, Ward RCC, Hesjedal T, Zhang XG, Wang C, Kohn A, Ma QL, Zhang J, Liu HF, Han XF. Interface characterization of epitaxial Fe/MgO/Fe magnetic tunnel junctions. J Nanosci Nanotechnol 2012; 12:1006-1023. [PMID: 22629887 DOI: 10.1166/jnn.2012.4257] [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] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Following predictions by first-principles theory of a huge tunnel magnetoresistance (TMR) effect in epitaxial Fe/MgO/Fe magnetic tunnel junctions (MTJs), measured magnetoresistance (MR) ratios of about 200% at room temperature (RT) have been reported in MgO-based epitaxial MTJs. Recently, a MR ratio of about 600% has been reported at RT in MgO-based MTJs prepared by magnetron sputtering, using amorphous CoFeB as the ferromagnetic electrode. These MTJs show great potential for application in spintronic devices. Fully epitaxial MTJs are excellent model systems that enhance our understanding of the spin-dependent tunneling process as the interface is well defined and can be fully characterized. Both theoretical calculations and experimental results clearly indicate that the interfacial structure plays a crucial role in the coherent tunneling across a single crystal MgO barrier, especially in epitaxial MgO-based MTJs grown by molecular beam epitaxy (MBE). Surface X-ray diffraction, Auger electron spectroscopy, X-ray absorption spectra, and X-ray magnetic circular dichroism techniques have been reported previously for interface characterization. However, no consistent viewpoint has been reached on the interfacial structures (such as FeO layer formation at the bottom Fe/MgO interface), and it is still an open issue. In this article, our recent studies on the interface characterization of MgO-based epitaxial MTJs by X-ray photoelectron spectroscopy, high resolution transmission electron microscopy, and spin-dependent tunneling spectroscopy, will be presented.
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Affiliation(s)
- S G Wang
- State Key Laboratory of Magnetism, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
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Pan CF, Wu CJ, Chen HH, Dang CW, Chang FM, Liu HF, Chu CC, Lin M, Lee YJ. Molecular analysis of HLA-DRB1 allelic associations with systemic lupus erythematous and lupus nephritis in Taiwan. Lupus 2009; 18:698-704. [DOI: 10.1177/0961203308101955] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
To evaluate the association of human leukocyte antigen (HLA)–DRB1 alleles with systemic lupus erythematosus (SLE) and lupus nephritis (LN) in the Taiwanese population, and to investigate the possible association of HLA-DRB1 alleles with disease severity in LN. HLA-DRB1 alleles were studied in 105 SLE patients (82 patients with LN, 23 patients without LN) and 855 healthy controls by polymerase chain reaction and sequence-based typing assays. The frequency of the HLA class II alleles DRB1*0301 (Odds ratio [OR] = 2.01, 95% confidence interval [CI] = 1.31–3.10, Pc = 0.02) and DRB1*1501 (OR = 2.06, 95% CI = 1.36–3.13, Pc = 0.01) were both increased in SLE patients, compared to healthy controls. The frequency of DRB1*1202 was significantly lower in LN patients than in SLE patients without nephritis (OR = 0.23, 95% CI = 0.09–0.57, Pc = 0.01). No specific allele was significantly associated with an increased or decreased risk for severity of LN in this sample. In Taiwanese people, the DRB1*0301 and DRB1*1501 alleles are significant risk factors for SLE, while the DRB1*1202 allele is protective for LN.
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Affiliation(s)
- CF Pan
- Departments of Nephrology, Mackay Memorial Hospital, Taipei; Departments of Mackay Medicine, Nursing and Management College, Taipei, Taiwan
| | - CJ Wu
- Departments of Nephrology, Mackay Memorial Hospital, Taipei
| | - HH Chen
- Departments of Nephrology, Mackay Memorial Hospital, Taipei
| | - CW Dang
- Departments of Medical Research, Mackay Memorial Hospital, Taipei
| | - FM Chang
- Departments of Medical Research, Mackay Memorial Hospital, Taipei
| | - HF Liu
- Departments of Medical Research, Mackay Memorial Hospital, Taipei
| | - CC Chu
- Departments of Medical Research, Mackay Memorial Hospital, Taipei
| | - M Lin
- Departments of Medical Research, Mackay Memorial Hospital, Taipei
| | - YJ Lee
- Departments of Medical Research, Mackay Memorial Hospital, Taipei; Department of Pediatrics, College of Medicine, Taipei Medical University, Taipei, Taiwan; Departments of Pediatrics, Mackay Memorial Hospital, Taipei
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39
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Pan WS, Liu HF, Zhang CY, Li X, Zhao X, Sun TH, Ju CY, Li N. Study of the formulation parameters affecting the preparation of microencapsulated ion-exchange resins containing venlafaxine hydrochloride. Indian J Pharm Sci 2007. [DOI: 10.4103/0250-474x.36943] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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40
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Lu L, Yang DZ, Mo YQ, Yu CY, Liu HF. EL-007 GnRH agonist reduces cyclophosphamide-induced ovarian follicular destruction by AMH in mice. Reprod Biomed Online 2006. [DOI: 10.1016/s1472-6483(11)60532-4] [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: 11/28/2022]
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41
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Pan CH, Jong MH, Huang TS, Liu HF, Lin SY, Lai SS. Phylogenetic analysis of classical swine fever virus in Taiwan. Arch Virol 2005; 150:1101-19. [PMID: 15703847 DOI: 10.1007/s00705-004-0485-6] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2004] [Accepted: 12/10/2004] [Indexed: 11/28/2022]
Abstract
Two envelope glycoprotein (Erns and E2) regions of the classical swine fever virus (CSFV) were amplified by RT-PCR and sequenced directly from 158 specimens collected between 1989 and 2003 in Taiwan. Phylogenetic analysis of the two regions revealed a similar tree topology and the Erns region provided better discrimination than the E2 region. One hundred and fifteen isolates out of the 158 isolates were clustered within subgroup 2.1 (further classified as 2.1a and 2.1b) and 2.2, which were considered to be likely of the introduced strains, whereas the remaining 43 isolates were clustered within subgroup 3.4 and were considered to be of the endemic strains. The subgroup 2.1a viruses were first detected in 1994 and predominated from 1995 onwards. However, subgroup 3.4 viruses were prevalent in the early years, not being isolated after 1996. We have observed a dramatic switch in genotype from subgroup 3.4 to 2.1a. The subgroup 2.1a isolates are closely related to the Paderborn and Lao isolates, whereas 2.1b isolates have a close relationship to the Chinese Guangxi isolates. The phylogenetic tree of 27 CSFV sequences based on the complete envelope glycoprotein gene (Erns-E2) displayed better resolution than that based on the complete open reading frame.
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Affiliation(s)
- C H Pan
- Department of Hog Cholera, Animal Health Research Institute, Council of Agriculture, Taipei, Taiwan
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42
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Chen JR, Lee YJ, Chen T, Wang KL, Dang CW, Chang SC, Liu HF, Yang YC. MHC class I chain-related gene A (MICA) polymorphism and the different histological types of cervical cancer. Neoplasma 2005; 52:369-73. [PMID: 16151576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Cervical cancer has been one of the most important gynecologic cancer in Taiwan with incidence of 24/100,000 and mortality of 8.7/100,000 annually. About 70-80% are squamous cell carcinoma; the remainder are composed of various types of adenocarcinoma, adenosquamous carcinoma and undifferentiated carcinoma. The Major Histocompatibility Complex (MHC) class I chain-related gene A (MICA) is expressed by keratinocytes and epithelial cells and interacts with gamma-delta T cells. Although MICA was not associated with cervical cancer in the study of Northern Sweden, there are no further studies about the association of MICA polymorphism and the different histological types of cervical cancer. We analyzed the MICA polymorphism in 110 cervical cancer cases (88 squamous cell carcinoma, 12 adenocarcinoma and 10 adenosquamous carcinoma) and 82 randomly selected unrelated controls from 1994 to 2000 in the Mackay Memorial Hospital, Taipei, Taiwan. DNA was extracted part from leukocytes of peripheral blood, part from tumor tissue and 5 polymorphic microsatellite alleles (A4,A5,A5.1,A6,A9) of MICA were identified by a polymerase chain reaction-based (PCR) technique using ABI Prism 377-18 DNA sequencer (Applied Biosystems, Foster City, CA, USA). The phenotypes, alleles and genotypes of MICA gene were calculated. There was no association with cervical cancer patients and non-cervical cancer patients (p=0.337, 0.356 and 0.414). After dividing the cervical cancer patients into 3 major histological types (squamous cell carcinoma, adenocarcinoma and adenosquamous carcinoma), the result was still the same (p=0.598, 0.172 and 0.617) in our study. We found no association between MICA gene polymorphism and cervical cancer in Taiwan. Different histological types of cervical cancer also have no significant correlation with MICA gene polymorphism. It demonstrates that polymorphism of MICA gene bears no relation to cervical cancer and the different histological types of cervical cancer in Taiwan. We need further studies for identifying the factors causing the differentiation of cancer cells of the uterine cervix.
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Affiliation(s)
- J R Chen
- Department of Obstetric and Gynecology, Mackay Memorial Hospital, Taipei 10449 Taiwan.
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Abstract
BACKGROUND A recent study shows that a C1019T polymorphism of the gene encoding the gap junction protein connexin37 contributes to the genesis of atherosclerotic plaques in human carotid artery. However, whether such a polymorphism can be used as a prognostic marker in atherosclerotic disease of other arterial sites, such as coronary artery disease, is not known. METHODS We analyzed the allelic status in 177 subjects with coronary artery disease (age, 61+/-11 years; male/female, 120/57) and 102 controls (60+/-11 years; male/female, 70/32). Both groups were matched, before genotype analysis, for a variety of other traditional risk factors, including body mass index, smoking status, levels of blood pressure, sugar, creatinine, and lipid profiles, in addition to age and sex. RESULTS The T allele was less frequently seen in the control group, compared to the disease group (10.7 vs. 20.1%, TT+TC vs. CC, P<0.01). Subsequent analysis demonstrated that a significant difference existed in the male (9.2 vs. 22.8%, TT+TC vs. CC, P<0.005), but not in the female. Another finding was that the T allele frequency in all participants was less than 15%, markedly lower than that reported in non-Taiwanese. CONCLUSIONS The observation indicates that the polymorphism in the connexin37 gene potentially plays a role in the manifestation of coronary atherosclerosis in Taiwan.
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Affiliation(s)
- H I Yeh
- Department of Internal Medicine, Mackay Memorial Hospital, Taipei Medical College, Taipei, Taiwan, ROC
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Abstract
Analysis of the polymorphic sequences in mitochondrial DNA (mtDNA) has been widely applied to forensic tests and anthropology studies. However, these polymorphic data in human have thus far been derived from the displacement-loop and intergenic regions only. Here, we report the identification of clustered polymorphic sites in the mitochondria coding region encompassing position 8389-8865. The DNA sequences of 119 unrelated Chinese were determined by PCR amplification and direct sequencing. The results showed that heteroplasmy was found in five individuals, 39 sites were noted in this 477 bp region, and 41 haplotypes were identified. The probability of identity and allelic diversity were estimated as 0.1265 and 0.8809, respectively. The results suggest that sequence polymorphism from position 8389-8865 in human mtDNA can be used as a marker for identity investigation.
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Affiliation(s)
- C Y Tzen
- Department of Pathology and Medical Research, Mackay Memorial Hospital, School of Medical Technology, Taipei Medical College, 45 Minsheng Road, Tamshui, Taipei, Taiwan.
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Gao JL, Zeng YM, Zhang LC, Gu J, Liu HF, Zhou WH, Yang GD. NO mediated increase of Fos protein and NMDA1A R mRNA expression in rat spinal cord during morphine withdrawal. Acta Pharmacol Sin 2001; 22:505-11. [PMID: 11747755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023] Open
Abstract
AIM To investigate the effects of nitric oxide (NO) on activation of the rat spinal cord neurons during naloxone-precipitated morphine withdrawal. METHODS Fos immunocytochemistry, NADPH-d histochemistry, Fos/NADPH-d double-labeling, intrathecal injection, antisense oligonucleotides (AS-ONs) techniques, and RT-PCR were used. RESULTS Acute administration of naloxone and chronic administration of morphine did not change the expression of Fos protein and NADPH-d positive neurons, and there was no expression of Fos/NADPH-d double-labeled neurons in the spinal cord of rats. Morphine withdrawal increased the expression of Fos protein, NADPH-d positive, and Fos/NADPH-d double-labeled neurons, and they were observed in all the laminae of the rat spinal cord. Intrathecal injection of nNOS antisense oligonucleotides (nNOS-AS) inhibited the increase of Fos protein and NMDA(1A)R mRNA expression in the rat spinal cord during morphine withdrawal and decreased the scores of morphine withdrawal symptoms. The effect of nNOS-AS was greater than that of eNOS-AS. There was no effect in nNOS sense oligonucleotides (nNOS-S) group. CONCLUSION NO mediated the increase of Fos protein and NMDA1A R mRNA expression in the rat spinal cord during morphine withdrawal.
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Affiliation(s)
- J L Gao
- Department of Anesthesiology, Affiliated Hospital of Xuzhou Medical College, Xuzhou 221002, China
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Lee YJ, Lo FS, Shu SG, Wang CH, Huang CY, Liu HF, Wu CC, Yang TY, Chang JG. The promoter region of the CTLA4 gene is associated with type 1 diabetes mellitus. J Pediatr Endocrinol Metab 2001; 14:383-8. [PMID: 11327371 DOI: 10.1515/jpem.2001.14.4.383] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The CTLA4 (cytotoxic T lymphocyte associated antigen-4) gene encodes the T cell receptor involved in the control of T cell proliferation and mediates T cell apoptosis. C-T polymorphism is present at position -318 from the ATG start codon in the promoter region of the gene. We report a study on the polymorphism in 347 unrelated children with type 1 diabetes mellitus (DM) (age at diagnosis 7.2+/-3.8 years) and their 260 healthy siblings as controls. Genotype C/C conferred a risk of type 1 DM (RR = 2.02, 95% CI 1.32-3.10, pc = 0.0033). The gene frequency of the C allele was higher in patients (RR = 1.91, 95% CI 1.28-2.84, pc = 0.0026). The gene frequency and phenotype frequency of the T allele were negatively associated with type 1 DM (RR = 0.52, 95% CI 0.35-0.78, pc = 0.0026 and RR = 0.49, 95% CI 0.32-0.76, pc = 0.0022, respectively). The frequency of genotype C/T was lower in patients (RR = 0.50, 95% CI 0.32-0.78, pc = 0.0051). This study demonstrates that nucleotide -318 C-T polymorphism of the CTLA4 gene is associated with type 1 DM. The promoter allele -318 C confers a risk of type 1 DM but allele -318 T confers protection against this disease.
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Affiliation(s)
- Y J Lee
- Department of Pediatrics, Medical Research, Mackay Memorial Hospital, Taipei, Taiwan.
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Abstract
BACKGROUND Belgium is a country with low endemicity for hepatitis B virus (HBV) infection. Few data are available on genotypes or serotypes of HBV among infected children. METHODS The S region of the hepatitis B virus genome was amplified and sequenced in 23 children treated with interferon-alpha in Belgium. Nucleotide sequences were aligned and compared with other known sequences in a phylogenetic analysis. RESULTS A high stability of the S gene was observed during treatment. Four genotypes were represented in this sample of Belgian patients (A, B, D, and E), reflecting the geographic diversity of origins. CONCLUSIONS In this series, the wide variety of geographic origins is confirmed by the molecular characteristics of HBV. In Belgium, HBV infection of children is currently essentially an imported infection.
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Affiliation(s)
- H F Liu
- Unit of Virology, Cliniques Universitaires St Luc Université Catholique de Louvain, Brussels, Belgium
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Cao JL, Liu HF, Zhou WH, Yang GD, Zhang LC, Zeng YM. [Intrathecal injection of NOS antisense oligonucleotides inhibits the increase of NMDA1AR mRNA expression in the spinal cord and brainstem of morphine-withdrawal rats]. Sheng Li Xue Bao 2001; 53:27-31. [PMID: 11354793] [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: 04/16/2023]
Abstract
Methods of reverse transcription polymerase chain reaction (RT-PCR), intrathecal injection and antisense drugs were used to study the effects of nitric oxide (NO) on the scores of morphine-withdrawal syndrome and the expression of NMDA1AR mRNA in rat spinal cord and brainstem. Intrathecal injection of NOS antisense oligonucleotides (AS-ONs) significantly decreased the scores of morphine-withdrawal symptoms. The effect of nNOS AS-ONs was greater than that of eNOS AS-ONs. The expression of NMDA1AR mRNA in the spinal cord and brainstem increased in morphine-dependent rats and increased to a greater extent in morphine-withdrawal rats. Intrathecal injection of nNOS AS-ONs significantly inhibited the increased expression of NMDA1AR mRNA in the spinal cord and brainstem of morphine-withdrawal rats. Intrathecal injection of eNOS antisense oligonucleotides inhibited the expression of NMDA1AR mRNA in the spinal cord of morphine-withdrawal rats, but did not in the brainstem. It is suggested that NO mediates morphine-withdrawal reaction and participates in modulating the expression of NMDA1AR mRNA in morphine-withdrawal rats.
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Affiliation(s)
- J L Cao
- Department of Anesthesiology, Affiliated Hospital of Xuzhou Medical College, Xuzhou 221002
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Xu XR, Tan ZL, Chen J, Liu HF. [Effects on vestibular function by irradiation in the patients with nasopharyngeal carcinoma]. Lin Chuang Er Bi Yan Hou Ke Za Zhi 2000; 14:396-7. [PMID: 12563907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To investigate effects on vestibular function by irradiation in the patients with nasopharyngeal carcinoma. METHOD Twenty patients with nasopharyngeal carcinoma were routinely irradiated with dose of 70 Gy (3 cases > 70 Gy). RESULT Nine cases (45%) were abnormal in vestibular function test after radical irradiation in 20 cases (spontaneous nystagmus n = 3; unlateral canal paresis n = 4; bilateral canal paresis n = 2; bilateral vestibular function absent n = 2). The other 11 cases(55%) were normal in vestibular function test. CONCLUSION Vestibular function may be damaged after radical irradiation in patients with nasopharyngeal carcinoma. During professional identification, this factor must be respected and vestibular function, cochlear function and tubal function must be separately evaluated.
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Affiliation(s)
- X R Xu
- Department of Otolaryngology, General Hospital of Air Force, Beijing 100036
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50
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Xu XR, Guo LY, Liu HF, Gong WX, Zhang Y, Ye T. [Characteristics and effect of allergic rhinitis in aircrew on flight]. Space Med Med Eng (Beijing) 2000; 13:207-9. [PMID: 11543482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
OBJECTIVE To observe the characteristics of allergic rhinitis in aircrew and its effect on flight. METHOD Case studies of allergic rhinitis were made in 32 aircrew. RESULT There were 20 cases of perennial allergic rhinitis and 12 cases of seasonal allergic rhinitis in 32 aircrew. Twenty-six cases are still in a qualified position to continue their flying job and the other six cases were permanently grounded. CONCLUSION Allergic rhinitis in aircrew may affect the flying in aviation or space flight and the flying in aviation or space may induce or aggravate allergic rhinitis.
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Affiliation(s)
- X R Xu
- General Hospital of Air Force, Beijing, China
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