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Hu JR, Wang ZZ, Wei XX, Gong EY, Shao RT. [Research progress on global health competency and its models]. Zhonghua Yu Fang Yi Xue Za Zhi 2024; 58:92-97. [PMID: 38228555 DOI: 10.3760/cma.j.cn112150-20230912-00179] [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: 01/18/2024]
Abstract
At present, the research on Global Health Competencies is mainly conducted in the field of the establishment of competency models and application of indicators. This review summarizes the research progress of the Global Health Competency and its models, and focuses on cutting-edge research from the aspects of target audience, purpose, content, classical model, methods and future development. The competency model is suggested to be adjusted and updated according to the practices of different countries and regions. The research and funding of the competency model in the field of public health is suggested to be strengthened, and the global health and diplomacy are suggested to be combined to enrich and improve the competency model. Finally, this review aims to promote Global Health Competencies research in China, especially to improve the global health talent training system and relevant policies in further research.
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Affiliation(s)
- J R Hu
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Z Z Wang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - X X Wei
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - E Y Gong
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - R T Shao
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
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McGregor BA, Sonpavde GP, Kwak L, Regan MM, Gao X, Hvidsten H, Mantia CM, Wei XX, Berchuck JE, Berg SA, Ravi PK, Michaelson MD, Choueiri TK, Bellmunt J. The Double Antibody Drug Conjugate (DAD) phase I trial: sacituzumab govitecan plus enfortumab vedotin for metastatic urothelial carcinoma. Ann Oncol 2024; 35:91-97. [PMID: 37871703 DOI: 10.1016/j.annonc.2023.09.3114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 09/27/2023] [Accepted: 09/28/2023] [Indexed: 10/25/2023] Open
Abstract
BACKGROUND The antibody-drug conjugates sacituzumab govitecan (SG) and enfortumab vedotin (EV) are standard monotherapies for metastatic urothelial carcinoma (mUC). Given the different targets and payloads, we evaluated the safety and efficacy of SG + EV in a phase I trial in mUC (NCT04724018). PATIENTS AND METHODS Patients with mUC and Eastern Cooperative Oncology Group performance status ≤1 who had progressed on platinum and/or immunotherapy were enrolled. SG + EV were administered on days 1 + 8 of a 21-day cycle until progression or unacceptable toxicity. Primary endpoint was the incidence of dose-limiting toxicities during cycle 1. The number of patients treated at each of four pre-specified dose levels (DLs) and the maximum tolerated doses in combination (MTD) were determined using a Bayesian Optimal Interval design. Objective response, progression-free survival, and overall survival were secondary endpoints. RESULTS Between May 2021 and April 2023, 24 patients were enrolled; 1 patient never started therapy and was excluded from the analysis. Median age was 70 years (range 41-88 years); 11 patients received ≥3 lines of therapy. Seventy-eight percent (18/23) of patients experienced grade ≥3 adverse event (AE) regardless of attribution at any DL, with one grade 5 AE (pneumonitis possibly related to EV). The recommended phase II doses are SG 8 mg/kg with EV 1.25 mg/kg with granulocyte colony-stimulating factor support; MTDs are SG 10 mg/kg with EV 1.25 mg/kg. The objective response rate was 70% (16/23, 95% confidence interval 47% to 87%) with three complete responses; three patients had progressive disease as best response. With a median follow-up of 14 months, 9/23 patients have ongoing response including 6 responses lasting over 12 months. CONCLUSIONS The combination of SG + EV was assessed at different DLs and a safe dose for phase II was identified. The combination had encouraging activity in patients with mUC with high response rates, including clinically significant complete responses. Additional study of this combination is warranted.
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Affiliation(s)
- B A McGregor
- Dana Farber Cancer Institute, Harvard Medical School, Boston.
| | - G P Sonpavde
- Dana Farber Cancer Institute, Harvard Medical School, Boston; Advent Health Cancer Institute and the University of Central Florida, Orlando
| | - L Kwak
- Dana Farber Cancer Institute, Harvard Medical School, Boston
| | - M M Regan
- Dana Farber Cancer Institute, Harvard Medical School, Boston
| | - X Gao
- Massachusetts General Hospital, Harvard Medical School, Boston, USA
| | - H Hvidsten
- Dana Farber Cancer Institute, Harvard Medical School, Boston
| | - C M Mantia
- Dana Farber Cancer Institute, Harvard Medical School, Boston
| | - X X Wei
- Dana Farber Cancer Institute, Harvard Medical School, Boston
| | - J E Berchuck
- Dana Farber Cancer Institute, Harvard Medical School, Boston
| | - S A Berg
- Dana Farber Cancer Institute, Harvard Medical School, Boston
| | - P K Ravi
- Dana Farber Cancer Institute, Harvard Medical School, Boston
| | - M D Michaelson
- Massachusetts General Hospital, Harvard Medical School, Boston, USA
| | - T K Choueiri
- Dana Farber Cancer Institute, Harvard Medical School, Boston
| | - J Bellmunt
- Dana Farber Cancer Institute, Harvard Medical School, Boston.
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Du LM, Hu SJ, Chen XM, Deng YY, Yong HL, Shi RC, Liu JG, Cao ZZ, You YJ, Liu YX, Ma SC, Ma LK, Li XF, Li XM, Hou JB, Ye ZC, Sang T, Cao Y, Liu H, Wei XX, Hu AL, Li YL, Gao HJ. [Survey of Helicobacter pylori levofloxacin and clarithromycin resistance rates and drug resistance genes in Ningxia, 2020-2022]. Zhonghua Yi Xue Za Zhi 2023; 103:2163-2167. [PMID: 37482728 DOI: 10.3760/cma.j.cn112137-20230214-00206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 07/25/2023]
Abstract
Objective: To explore the rate of Helicobacter pylori (Hp) resistance to levofloxacin and clarithromycin and the common mutation patterns of resistance genes in Ningxia, and to assess the concordance between phenotypic resistance and genotypic resistance. Methods: Cross-sectional study. Patients diagnosed with Hp infection in 14 hospitals in Ningxia region from February 2020 to May 2022 were retrospectively selected. Hp strains were isolated from gastric biopsy specimens of Hp-infected patients and subjected to phenotypic drug sensitivity testing and detection of resistance genes to analyze the rate of Hp resistance to levofloxacin and clarithromycin and the common mutation patterns of resistance genes in Ningxia region; and the concordance rate and Kappa concordance test were used to assess the concordance between phenotypic resistance and genotypic resistance. Results: A total of 1 942 Hp strains were isolated and cultured, and among the infections, 1 069 cases (55.0%) were male and 873 cases (45.0%) were female, aged (50.0±12.5) years (15-86 years). The rates of Hp resistance to levofloxacin and clarithromycin in Ningxia were 42.1% (818/1 942) and 40.1% (779/1 942), respectively, and the rate of dual resistance to both was 22.8% (443/1 942). The rate of resistance to levofloxacin and clarithromycin of Hp strains from female patients was higher than in male patients (levofloxacin: 50.4%(440/873) vs 35.4%(378/1 069); clarithromycin: 44.4%(388/873) vs 36.6%(391/1 069), both P<0.001). Among the GyrA gene mutations associated with levofloxacin resistance, the differences in mutation rate of amino acid at positions 87 and 91 were statistically significant in both drug-resistant and sensitive strains(both P<0.001), except for Asn87Thr. Hp strains were statistically significant for levofloxacin (Kappa=0.834, P<0.001) and clarithromycin (Kappa=0.829, P<0.001) had good concordance in resistance at the phenotypic and genotypic levels. Conclusion: The resistance of Hp to levofloxacin and clarithromycin in Ningxia region is severe, and there is good consistency between genotypic and phenotypic resistance.
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Affiliation(s)
- L M Du
- Department of Gastroenterology, the Third Clinical Medical College of Ningxia Medical University, Ningxia Hui Autonomous Region People's Hospital, Yinchuan 750002, China
| | - S J Hu
- Department of Gastroenterology, the Third Clinical Medical College of Ningxia Medical University, Ningxia Hui Autonomous Region People's Hospital, Yinchuan 750002, China
| | - X M Chen
- Department of Gastroenterology, the Third Clinical Medical College of Ningxia Medical University, Ningxia Hui Autonomous Region People's Hospital, Yinchuan 750002, China
| | - Y Y Deng
- Department of Gastroenterology, the Third Clinical Medical College of Ningxia Medical University, Ningxia Hui Autonomous Region People's Hospital, Yinchuan 750002, China
| | - H L Yong
- Department of Gastroenterology, the Third Clinical Medical College of Ningxia Medical University, Ningxia Hui Autonomous Region People's Hospital, Yinchuan 750002, China
| | - R C Shi
- Department of Gastroenterology, Wuzhong People's Hospital, Wuzhong 751199, China
| | - J G Liu
- Department of Gastroenterology, the Third Clinical Medical College of Ningxia Medical University, Ningxia Hui Autonomous Region People's Hospital, Yinchuan 750002, China
| | - Z Z Cao
- Department of Gastroenterology, the Third Clinical Medical College of Ningxia Medical University, Ningxia Hui Autonomous Region People's Hospital, Yinchuan 750002, China
| | - Y J You
- Department of Gastroenterology, the Third Clinical Medical College of Ningxia Medical University, Ningxia Hui Autonomous Region People's Hospital, Yinchuan 750002, China
| | - Y X Liu
- Department of Gastroenterology, the Third Clinical Medical College of Ningxia Medical University, Ningxia Hui Autonomous Region People's Hospital, Yinchuan 750002, China
| | - S C Ma
- Department of Gastroenterology, the Third Clinical Medical College of Ningxia Medical University, Ningxia Hui Autonomous Region People's Hospital, Yinchuan 750002, China
| | - L K Ma
- Department of Gastroenterology, the Third Clinical Medical College of Ningxia Medical University, Ningxia Hui Autonomous Region People's Hospital, Yinchuan 750002, China
| | - X F Li
- Department of Gastroenterology, the Third Clinical Medical College of Ningxia Medical University, Ningxia Hui Autonomous Region People's Hospital, Yinchuan 750002, China
| | - X M Li
- Department of Gastroenterology, the Third Clinical Medical College of Ningxia Medical University, Ningxia Hui Autonomous Region People's Hospital, Yinchuan 750002, China
| | - J B Hou
- Department of Gastroenterology, the Third Clinical Medical College of Ningxia Medical University, Ningxia Hui Autonomous Region People's Hospital, Yinchuan 750002, China
| | - Z C Ye
- Department of Gastroenterology, the Third Clinical Medical College of Ningxia Medical University, Ningxia Hui Autonomous Region People's Hospital, Yinchuan 750002, China
| | - T Sang
- Department of Gastroenterology, the Third Clinical Medical College of Ningxia Medical University, Ningxia Hui Autonomous Region People's Hospital, Yinchuan 750002, China
| | - Y Cao
- Department of Gastroenterology, the Third Clinical Medical College of Ningxia Medical University, Ningxia Hui Autonomous Region People's Hospital, Yinchuan 750002, China
| | - H Liu
- Department of Gastroenterology, the Third Clinical Medical College of Ningxia Medical University, Ningxia Hui Autonomous Region People's Hospital, Yinchuan 750002, China
| | - X X Wei
- Department of Gastroenterology, the Third Clinical Medical College of Ningxia Medical University, Ningxia Hui Autonomous Region People's Hospital, Yinchuan 750002, China
| | - A L Hu
- Department of Gastroenterology, the Third Clinical Medical College of Ningxia Medical University, Ningxia Hui Autonomous Region People's Hospital, Yinchuan 750002, China
| | - Y L Li
- Department of Gastroenterology, the Third Clinical Medical College of Ningxia Medical University, Ningxia Hui Autonomous Region People's Hospital, Yinchuan 750002, China
| | - H J Gao
- Department of Gastroenterology, Tongji Hospital, Tongji University, Institute of Digestive Disease, School of Medicine, Tongji University, Shanghai 200120, China
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Wang H, Wei XX, Ma ZM, Ji MM, Huang YQ, Zhang J, Zhu M, Dai JC, Jin GF, Ma HX, Hu ZB, Shen HB. [Mediation effect of smoking and healthy diet score on the association between educational level and the risk of lung cancer incidence]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:1875-1880. [PMID: 36572457 DOI: 10.3760/cma.j.cn112338-20220628-00572] [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: 12/29/2022]
Abstract
Objective: To evaluate the possible mediation effect of smoking and healthy diet score on the association between educational level and the risk of lung cancer incidence. Methods: After excluding individuals with missing educational levels and cancer information at baseline, 446 772 participants in the UK Biobank (UKB) prospective cohort study were included. Cox regression models were used to investigate the associations of educational level and smoking and healthy diet score with the incidence of lung cancer. Mediating effect analysis was conducted to analyze the mediating effect of smoking and healthy diet score on the correlation between educational level and lung cancer. Results: During a median follow-up of 7.13 years, 1 994 new- onset lung cancer cases were observed. Per 1 standard deviation (5 years) increase in educational level was associated with a 12% lower risk of lung cancer (HR=0.88, 95%CI: 0.84-0.92). The corresponding level 1-5 in the International Standard Classification for Education (ISCED) were mapped to UKB self-report highest qualification to estimate the educational level. A higher rank means a higher educational level. Compared with level ISCED-1, the HR(95%CI) of level ISCED-2, ISCED-3, ISCED-4 and ISCED-5 were respectively 0.83 (0.72-0.94), 0.67 (0.53-0.85), 0.76 (0.65-0.89) and 0.72 (0.64-0.80) for lung cancer. Education years were negatively correlated with smoking, with β coefficients (95%CI) being -0.079 (-0.081- -0.077), but positively correlated with healthy diet score (β=0.042, 95%CI: 0.039-0.045). Analysis of mediating effect indicated that the association of educational level with lung cancer risk was mediated by smoking and healthy diet score, the proportions of mediating effect were 38.952% (95%CI: 31.802%-51.659%) and 1.784% (95%CI: 0.405%-3.713%), respectively. Conclusion: Smoking and healthy diet score might mediate the effect of educational level on the incidence of lung cancer, indicating that improving the level of education can reduce the risk of lung cancer by changing lifestyles such as smoking and diet.
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Affiliation(s)
- H Wang
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - X X Wei
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Z M Ma
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - M M Ji
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Y Q Huang
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - J Zhang
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - M Zhu
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing 211166, China Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing 211166, China
| | - J C Dai
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing 211166, China Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing 211166, China
| | - G F Jin
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing 211166, China Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing 211166, China
| | - H X Ma
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing 211166, China Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing 211166, China
| | - Z B Hu
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing 211166, China Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing 211166, China
| | - H B Shen
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing 211166, China Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing 211166, China
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Jia XX, Xu K, Che BB, Gao JR, Huang ZY, Wang J, Wei XX, Le KL, Gong ZY, Sun YQ, Xie CC, Xi JC, Cheng YZ, Zhuyan ZY, Ding Y, Chen D. [Comparative analysis on prevalence of tobacco and e-cigarettes uses in junior middle school students in Shanghai, 2013 and 2019]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:1408-1414. [PMID: 36117347 DOI: 10.3760/cma.j.cn112338-20211012-00786] [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: 06/15/2023]
Abstract
Objective: To examine the prevalence and trend of tobacco and e-cigarettes uses and identify the influencing factors for smoking behavior in junior middle school students in Shanghai, and provide data support and scientific basis for the development of tobacco control intervention strategy in adolescents. Methods: Multi-stage stratified random sampling method was used to select junior middle school students in 8 districts and 10 districts in Shanghai in 2013 and in 2019 respectively. Information about tobacco and e-cigarettes uses in the students were collected by using self-administrated questionnaire. The prevalence of tobacco and e-cigarettes uses were calculated, the difference between two years was compared with χ2 test. The influencing factors were identified by multivariate logistic regression analysis. Results: In 2019, the current smoking rate was 0.6% in junior middle school students in Shanghai, and the smoking attempt rate was 2.9%, both were lower than the levels in 2013 (0.7% and 6.9%). The current use rate of e-cigarettes was 0.6% in 2019,with no significant change compared with 2013 (0.6%). The proportion of the students who had heard of e-cigarettes in 2019 (78.4%) was higher than that in 2013 (47.2%). In 2019, the second-hand smoke (SHS) exposure rate at home, in both indoor and outdoor public places and on public transportations was 72.5%, which was slightly lower than the level in 2013 (73.0%), the differences were all significant (P<0.05). In 2019, the students seeing close friend smoking (OR=27.381, 95%CI: 12.037-62.287), seeing someone smoking in school (OR=2.477, 95%CI: 1.155-5.312), believing that SHS may not be harmful (OR=8.471, 95%CI: 1.464-49.005) had higher possibility of smoking. Being aged ≥15 years (compared with being aged ≤12 years, OR=8.688, 95%CI: 1.922-39.266), exposure to SHS in outdoor public place (OR=8.608, 95%CI: 1.048-70.692), close friend smoking (OR=8.115, 95%CI: 1.754-37.545) were positively associated with e-cigarettes use, and believing that smoking results in uncomfortable social contact [compared with believing that smoking results in comfortable social contact (OR=0.105,95%CI: 0.018-0.615)] were negatively associated with e-cigarettes use, the difference was significant (P<0.05). Conclusion: The prevalence of tobacco and e-cigarette uses in junior middle school students in Shanghai remained at a low level in recent years. The SHS exposure rate in junior middle school students is high. Smoking behavior of junior middle school students is closely related to personal attitude and awareness of tobacco, exposure to SHS, peer smoking and the situation of tobacco control in schools. Prevention and intervention should be carried out from multi-dimensions to effectively protect teenagers from tobacco hazards.
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Affiliation(s)
- X X Jia
- Department of Tobacco Control and Behavioral Intervention, Shanghai Municipal Center for Health Promotion, Shanghai 200040, China Shanghai Association of Tobacco Control, Shanghai 200040, China
| | - K Xu
- Business Promotion Office, Shanghai Municipal Center for Health Promotion, Shanghai 200040, China
| | - B B Che
- School of Public Health, Fudan University, Shanghai 200032, China
| | - J R Gao
- Shanghai Association of Tobacco Control, Shanghai 200040, China Shanghai Aging Development and Promotion Center, Shanghai 200011, China
| | - Z Y Huang
- Health Promotion Division, Shanghai Municipal Health Commission, Shanghai 200125, China
| | - J Wang
- Department of Tobacco Control and Behavioral Intervention, Shanghai Municipal Center for Health Promotion, Shanghai 200040, China Shanghai Association of Tobacco Control, Shanghai 200040, China
| | - X X Wei
- Department of Research and Evaluation, Shanghai Municipal Center for Health Promotion, Shanghai 200040, China
| | - K L Le
- Department of Tobacco Control and Behavioral Intervention, Shanghai Municipal Center for Health Promotion, Shanghai 200040, China Shanghai Association of Tobacco Control, Shanghai 200040, China
| | - Z Y Gong
- Department of Tobacco Control and Behavioral Intervention, Shanghai Municipal Center for Health Promotion, Shanghai 200040, China Shanghai Association of Tobacco Control, Shanghai 200040, China
| | - Y Q Sun
- Department of Tobacco Control and Behavioral Intervention, Shanghai Municipal Center for Health Promotion, Shanghai 200040, China Shanghai Association of Tobacco Control, Shanghai 200040, China
| | - C C Xie
- Department of Tobacco Control and Behavioral Intervention, Shanghai Municipal Center for Health Promotion, Shanghai 200040, China Shanghai Association of Tobacco Control, Shanghai 200040, China
| | - J C Xi
- Department of Tobacco Control and Behavioral Intervention, Shanghai Municipal Center for Health Promotion, Shanghai 200040, China Shanghai Association of Tobacco Control, Shanghai 200040, China
| | - Y Z Cheng
- Department of Tobacco Control and Behavioral Intervention, Shanghai Municipal Center for Health Promotion, Shanghai 200040, China Shanghai Association of Tobacco Control, Shanghai 200040, China
| | - Z Y Zhuyan
- Department of Tobacco Control and Behavioral Intervention, Shanghai Municipal Center for Health Promotion, Shanghai 200040, China Shanghai Association of Tobacco Control, Shanghai 200040, China
| | - Y Ding
- Shanghai Municipal Center for Health Promotion, Shanghai 200040, China
| | - D Chen
- Department of Tobacco Control and Behavioral Intervention, Shanghai Municipal Center for Health Promotion, Shanghai 200040, China Shanghai Association of Tobacco Control, Shanghai 200040, China
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Bao GS, Wei XX, Liu WH. First Report of Powdery Mildew Caused by Blumeria graminis on Poa pratensis var. anceps 'Qinghai' in China. Plant Dis 2022; 106:1294. [PMID: 34633233 DOI: 10.1094/pdis-03-21-0608-pdn] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Affiliation(s)
- G S Bao
- Qinghai Academy of Animal Science and Veterinary Medicine, Qinghai University, Xining 810016, China
| | - X X Wei
- Qinghai Academy of Animal Science and Veterinary Medicine, Qinghai University, Xining 810016, China
| | - W H Liu
- Qinghai Academy of Animal Science and Veterinary Medicine, Qinghai University, Xining 810016, China
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Wei XX, Zhang B, Wu B, Wang YJ, Tian XH, Yang LX, Oguzie EE, Ma XL. Enhanced corrosion resistance by engineering crystallography on metals. Nat Commun 2022; 13:726. [PMID: 35132071 PMCID: PMC8821614 DOI: 10.1038/s41467-022-28368-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 01/06/2022] [Indexed: 11/17/2022] Open
Abstract
Nanometer-thick passive films, which impart superior corrosion resistance to metals, are degraded in long-term service; they are also susceptible to chloride-induced localized attack. Here we show, by engineering crystallographic configurations upon metal matrices adjacent to their passive films, we obtain great enhancement of corrosion resistance of FeCr15Ni15 single crystal in sulphuric acid, with activation time up to two orders of magnitude longer than that of the non-engineered counterparts. Meanwhile, engineering crystallography decreases the passive current density and shifts the pitting potential to noble values. Applying anodic polarizations under a transpassivation potential, we make the metal matrices underneath the transpassive films highly uneven with {111}-terminated configurations, which is responsible for the enhancement of corrosion resistance. The transpassivation strategy also works in the commercial stainless steels where both grain interior and grain boundaries are rebuilt into the low-energy configurations. Our results demonstrate a technological implication in the pretreatment process of anti-corrosion engineering. Passive films on metal surfaces provide better corrosion resistance, but they can degrade in long-term service. Here the authors demonstrate a strategy to engineer crystallographic configuration at the metal/film interface to further improve corrosion resistance.
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Wu ZN, Hu M, Gong X, Wei XX. [Application of machine learning in orthodontics]. Zhonghua Kou Qiang Yi Xue Za Zhi 2021; 56:1277-1281. [PMID: 34915665 DOI: 10.3760/cma.j.cn112144-20210331-00154] [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
With the increasing integration of artificial intelligence (AI) with other fields, machine learning, one of the major methods in AI, has been extensively applied in dentistry in the stage of diagnosis, therapy and prognosis evaluation. Nowadays, numerous studies have reported the applications of machine learning in orthodontics in two major aspects, including image identification and clinical decision support system. Herein, we reviewed the application progress of machine learning in orthodontics in order to provide new insight for the future precision medicine.
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Affiliation(s)
- Z N Wu
- Department of Orthodontics, Hospital of Stomatology, Jilin University, Changchun 130021, China
| | - M Hu
- Department of Orthodontics, Hospital of Stomatology, Jilin University, Changchun 130021, China
| | - X Gong
- School of Artificial Intelligence, Jilin University, Changchun 130012, China
| | - X X Wei
- Department of Orthodontics, Hospital of Stomatology, Jilin University, Changchun 130021, China
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Xue N, Lei XF, Xu JJ, Wei XX. [Progression of endoscopic retrograde cholangiopancreatography in children with pancreaticobiliary diseases]. Zhonghua Er Ke Za Zhi 2021; 59:145-149. [PMID: 33548965 DOI: 10.3760/cma.j.cn112140-20200618-00633] [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)
- N Xue
- Department of Gastroenterology, Qilu Children's Hospital of Shandong University, Jinan 250022, China
| | - X F Lei
- Department of Special Examination, Jinan Shizhong People's Hospital, Jinan 250001, China Corresponding authour: Wei Xuxia,
| | - J J Xu
- Department of Gastroenterology, Qilu Children's Hospital of Shandong University, Jinan 250022, China
| | - X X Wei
- Department of Gastroenterology, Qilu Children's Hospital of Shandong University, Jinan 250022, China
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Luo DF, Wei XX, Zhou Y, Li Y, Wu ZN, Lu CM, Hu M. [Research progress in psychological factors in the diagnosis and treatment of temporomandibular joint disorders]. Zhonghua Kou Qiang Yi Xue Za Zhi 2020; 55:794-798. [PMID: 33045794 DOI: 10.3760/cma.j.cn112144-20200307-00132] [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
Temporomandibular disorders (TMD) is one of the most common diseases in the orofacial region. The occurrence, development and outcome of TMD are affected by many factors. Among various risk factors, the psychological factors, especially anxiety, depression and somatic symptoms, are getting more and more attention in the etiology, diagnosis and treatment of TMD. Psychological factors are associated with the occurrence of TMD, and the accurate diagnostic criteria is conducive to the assessment of the patient's psychological state. If necessary, an appropriate psychological treatment according to a patient's psychological status can effectively improve the effect of clinical treatment. This article, based on domestic and international literatures, reviews the research progress of the correlation between the psychological factors and the etiology, diagnosis and treatment of TMD, in order to provide new ideas for clinicians to diagnose and treat TMD.
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Affiliation(s)
- D F Luo
- Department of Orthodontics, School and Hospital of Stomatology, Jilin University, Changchun 130021, China
| | - X X Wei
- Department of Orthodontics, School and Hospital of Stomatology, Jilin University, Changchun 130021, China
| | - Y Zhou
- Department of Orthodontics, School and Hospital of Stomatology, Jilin University, Changchun 130021, China
| | - Y Li
- Department of Orthodontics, School and Hospital of Stomatology, Jilin University, Changchun 130021, China
| | - Z N Wu
- Department of Orthodontics, School and Hospital of Stomatology, Jilin University, Changchun 130021, China
| | - C M Lu
- Department of Orthodontics, School and Hospital of Stomatology, Jilin University, Changchun 130021, China
| | - M Hu
- Department of Orthodontics, School and Hospital of Stomatology, Jilin University, Changchun 130021, China
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Luo YX, Du CN, Yang MF, Zhang Q, Wei XX. [Alveolar echinococcosis metastatic to the brain: a case report]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2020; 32:548-550. [PMID: 33185073 DOI: 10.16250/j.32.1374.2019167] [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: 11/27/2022]
Abstract
This paper reports a case with alveolar echinococcosis metastatic to the brain. This case underwent 10-year antiechinococcosis treatment and operations of the liver, right kidney and brain. Following multiple operations and oral administration of albendazole, the case still had recurrence and distant metastasis of hepatic echinococcosis. It is suggested that early prevention, early diagnosis, early regular treatment and surgical radical treatment are critical to the treatment of alveolar echinococcosis.
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Affiliation(s)
- Y X Luo
- Graduate School of Qinghai University, Xining 810016, China
| | - C N Du
- Graduate School of Qinghai University, Xining 810016, China
| | - M F Yang
- Department of Neurosurgery, Qinghai Provincial People's Hospital, China
| | - Q Zhang
- Department of Neurosurgery, Qinghai Provincial People's Hospital, China
| | - X X Wei
- Department of Basic Medical Science, Medical School of Qinghai University, China
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Xue N, Lei XF, Wei XX, Zhang L, Xu JJ. [Progression in endoscopic ultrasound in children's digestive diseases]. Zhonghua Er Ke Za Zhi 2019; 57:896-899. [PMID: 31665850 DOI: 10.3760/cma.j.issn.0578-1310.2019.11.019] [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)
- N Xue
- Department of Gastroenterology, Jinan Children's Hospital, Jinan 250022, China
| | - X F Lei
- Department of Special Examination, Jinan Shizhong People's Hospital, Jinan 250001, China
| | - X X Wei
- Department of Gastroenterology, Jinan Children's Hospital, Jinan 250022, China
| | - L Zhang
- Department of Gastroenterology, Jinan Children's Hospital, Jinan 250022, China
| | - J J Xu
- Department of Gastroenterology, Jinan Children's Hospital, Jinan 250022, China
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Tan J, Wei XX, Zhang QH, Zhou YS. [Three-year clinical effects of a modified semi-fixed bridge on restoring a missing posterior tooth]. Beijing Da Xue Xue Bao Yi Xue Ban 2018; 50:314-317. [PMID: 29643532] [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: 06/08/2023]
Abstract
OBJECTIVE To observe the effects of a modified semi-fixed bridge to restore a missing posterior tooth for three years. METHODS In the study, 38 cases with a posterior tooth missed were chosen as experiment group. The inclusion criteria for these cases required that one abutment tooth be defected, and another abutment intact. The missed posterior tooth was restored with a modified semi-fixed bridge in which a metal wing retainer was applied to the intact abutment tooth and a full crown retainer was applied to the defected abutment tooth, and the non-rigid connector linked to the metal wing retainer and the pontic, while the rigid connector linked to the full crown retainer and the pontic. And 42 cases with same abutment conditions were chosen as control group. These control patients were treated with classical rigidly-fixed partial dentures. The clinical effects regarding the bridge survival, abutment conditions, and etc. were observed by examination. RESULTS The average observation time for experiment group was 40.3 months (from 9 to 60 months). One case failed with loose crown retainer after 7 months' usage. Another failed case was the same performance after 20 months' wearing. The restorations were rebounded after the inner face of crowns was treated, and they were used normally. No loose abutment and retainer, no decayed abutment teeth were found, and the marginal adaptations between retainers and abutment teeth were good. The average observation time of control group was 44.7 months(from 22 to 50 months). No secondary decays and loose abutment teeth were detected and the marginal adaptation of the retainers was good. CONCLUSION This modified semi-fixed bridge has similar survival rate and clinical effects to restore a missing posterior tooth when compared with the traditional rigidly-fixed partial dentures. But the long-term observation is required.
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Affiliation(s)
- J Tan
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology & National Clinical Research Center for Oral Diseases, Beijing 100081, China
| | - X X Wei
- Dental Technical Laboratory, Peking University School and Hospital of Stomatology, Beijing 100081, China
| | - Q H Zhang
- Dental Technical Laboratory, Peking University School and Hospital of Stomatology, Beijing 100081, China
| | - Y S Zhou
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology & National Clinical Research Center for Oral Diseases, Beijing 100081, China
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Wei XX, Zhang R, Pu TJ, Yang LB, Ye F, Bu H. [Ki-67 expression and its effect on response to neo-adjuvant chemotherapy in invasive breast cancer]. Zhonghua Bing Li Xue Za Zhi 2018; 46:817-821. [PMID: 29224273 DOI: 10.3760/cma.j.issn.0529-5807.2017.12.001] [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: 02/05/2023]
Abstract
Objective: To investigate the response to neoadjuvant chemotherapy (NAC) among different molecular subtypes of breast cancers using molecular classification with Ki-67 (ER+ PR+ HER2+ Ki-67) or without Ki-67 (ER+ PR+ HER2). Methods: One hundred and twenty-seven cases of invasive breast cancer confirmed by core needle biopsy before NAC were collected from January 2007 to December 2009 and diagnosed at West China Hospital, Sichuan University. The cases were classified into different molecular subtypes using molecular classifications with or without Ki-67. Their clinical and pathological response to NAC was evaluated and compared. Results: The different subtypes using both molecular classifications showed significant difference in clinical response(with Ki-67: χ(2)=22.40, P<0.01; without Ki-67: χ(2)=9.202, P=0.027)but not pathological(P>0.05) response to NAC. By multivariate analysis, Ki-67 was predictive for a clinical complete response (P=0.041) and clinical overall response (P<0.01); also Ki-67 was the only clinicopathological factor predictive of pathological response(P=0.041). Conclusion: The molecular classification with Ki-67 is better to predict breast cancers responsiveness to NAC than the molecular classification without Ki-67.
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Affiliation(s)
- X X Wei
- Department of Pathology, West China Hospital, Sichuan University, Chengdu 610041, China
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Xie XR, Qin C, Chen L, Cheng DB, Huang JY, Wei XX, Yu LX, Liang ZJ. [A clinical study on the pathogenesis of lung cancer-related cerebral infarction]. Zhonghua Nei Ke Za Zhi 2017; 56:99-103. [PMID: 28162178 DOI: 10.3760/cma.j.issn.0578-1426.2017.02.004] [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 risk factors for lung cancer-related cerebral infarction. Methods: The hospitalized active lung cancer patients on anti-cancer therapy with no traditional stroke risk factors, who experienced an acute cerebral infarct in the First Affiliated Hospital of Guangxi Medical University from January 2005 to December 2015, were consecutively collected as the LCRS (lung cancer-related stroke) group. The active lung cancer patients without cerebral infarction hospitalized at the same peroid matched with the LCRS group for age and gender were collected as the LC (lung cancer) group. Clinical data from the two groups were analyzed. Results: A total of 139 LCRS patients and 139 LC patients were enrolled in the study, with 110 male and 29 female in each group, and there were no significant difference for the mean age between the LCRS group (52.1±10.4 years old ) and the LC group (52.1±10.1 years old). Two or more acute ischemic lesions of the brain were showed by MRI in most patients in the LCRS group (117 cases, 84.2%). Compared with the LC group, more patients in the LCRS group were found with adenocarcinoma, metastasis, elevated plasma D-dimer, CA125 and CA199 levels [88 cases (63.3%) vs 47 cases (33.8%); 98 cases (70.5%) vs 56 cases (40.3%); (468.38±291.37) μg/L vs (277.59±191.22) μg/L; (221.42±146.34) U/ml vs (106.84±69.97) U/ml; (254.68±185.84) U/ml vs (97.15±63.64) U/ml; with all P<0.001]. By logistic regression analysis of multiple factors, the elevated plasma D-dimer, CA125 and CA199 levels were showed to be independent risk factors for the cerebral infarction (OR=1.003, 95%CI 1.001-1.004; OR=1.006, 95%CI 1.003-1.010; OR=1.011, 95%CI 1.007-1.015). Conclusions: The elevated plasma D-dimer, CA125 and CA199 levels are the risk factors for the lung cancer related cerebral infarction, which may lead to hypercoagulation and induce cerebral infarction eventually.
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Affiliation(s)
| | | | | | | | | | | | | | - Z J Liang
- Department of Neurology, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
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Wei XX, Xu ZP, Chen GD. [Research progress on promoting animal tumorigenic effects of mobile phone radiation]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2016; 34:155-8. [PMID: 27014903 DOI: 10.3760/cma.j.issn.1001-9391.2016.02.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Wei XX, Chu JP, Zou YZ, Ru N, Cui SX, Bai YX. Effect of odanacatib on root resorption and alveolar bone metabolism during orthodontic tooth movement. Genet Mol Res 2015; 14:17972-81. [PMID: 26782444 DOI: 10.4238/2015.december.22.23] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The aim of this study was to investigate the effect of local administration of odanacatib (ODN) on orthodontic root resorption and the status of alveolar bone metabolism in rat molars. All specimens were scanned using microcomputed tomography and then the raw images were reconstructed. The total volume of the root resorption craters of the 60 g-NS (normal saline) group was higher than in the 60 g-ODN group and the control group. In the 60 g-NS group, the bone volume fraction values of alveolar bone were significantly decreased compared with the other 2 groups. There were no significant differences in the bone volume fraction values of the tibiae among the 3 groups. The results of tartrate-resistant acid phosphatase-positive (TRAP+) numbers showed that there was no difference between the 60 g-NS group and the 60 g-ODN group. The expression of cathepsin K was decreased significantly in the 60 g-ODN group. These results indicate that ODN reduces orthodontics-induced external root resorption and increases alveolar bone metabolism. This may be because ODN inhibits the activity of odontoclasts, but maintains the quantity of odontoclasts and enhances bone formation. ODN promotes local alveolar bone metabolism, but does not affect systemic bone metabolism.
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Affiliation(s)
- X X Wei
- Department of Orthodontics, Capital Medical University School of Stomatology, Beijing, China.,Department of Orthodontics, Zhengzhou University School of Stomatology, Zhengzhou, China
| | - J P Chu
- Department of Endodontics, Zhengzhou University School of Stomatology, Zhengzhou, China
| | - Y Z Zou
- Department of Orthodontics, Zhengzhou University School of Stomatology, Zhengzhou, China
| | - N Ru
- Department of Orthodontics, Capital Medical University School of Stomatology, Beijing, China
| | - S X Cui
- Department of Orthodontics, Zhengzhou University School of Stomatology, Zhengzhou, China
| | - Y X Bai
- Department of Orthodontics, Capital Medical University School of Stomatology, Beijing, China
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Wei C, Xun AY, Wei XX, Yao J, Wang JY, Shi RY, Yang GH, Li YX, Xu ZL, Lai MG, Zhang R, Wang LS, Zeng WS. Bifidobacteria Expressing Tumstatin Protein for Antitumor Therapy in Tumor-Bearing Mice. Technol Cancer Res Treat 2015; 15:498-508. [PMID: 25969440 DOI: 10.1177/1533034615581977] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Accepted: 11/20/2013] [Indexed: 11/15/2022] Open
Abstract
Tumstatin (Tum) is a powerful angiostatin that inhibits proliferation and induces apoptosis of tumorous vascular endothelial cells. A nonpathogenic and anaerobic bacterium, Bifidobacterium longum (BL), selectively localizes to and proliferates in the hypoxia location within solid tumor. The aims of this study were to develop a novel delivery system for Tum using engineered Bifidobacterium and to investigate the inhibitory effect of Tum on tumor in mice. A vector that enabled the expression of Tum under the control of the pBBADs promoter of BL was constructed and transformed into BL NCC2705 by electroporation. The mouse colon carcinoma cells CT26 (1 × 10(7)/mL) were subcutaneously inserted in the left armpit of BALB/c mice. The tumor-bearing mice were treated with Tum-transformed BL, and green fluorescent protein (GFP)-transformed BL was used as a negative control. The microvessel density (MVD) in the transplanted tumor was determined, and terminal deoxynucleotidyl transferase-mediated 2'-deoxyuridine 5'-triphosphate nick end labeling was used to detect apoptosis of vascular endothelial cells in transplanted tumor. The in vitro expression of Tum was examined in BL after l-arabinose induction. Bifidobacterium longum with pBBAD-Tum (BL-Tum) showed significant antitumor effect in tumor-bearing mice. The weight, volume, growth, and MVD, as well as the percentage of apoptotic vascular endothelial cells of transplanted tumors in the tumor-bearing mice treated with Tum-transformed BL were all significantly lower than those in the GFP negative control group. Intragastric administration, injection in tumor and vena caudalis injection of Tum-transformed BL exerted marked antitumor effects in tumor-bearing mice. This is the first demonstration of the utilization of Tum-transformed BL as a specific gene delivery system for treating tumor.
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Affiliation(s)
- C Wei
- Department of Gastroenteroloy, Jinan University of Medical Sciences, Shenzhen Municipal People's Hospital, Shenzhen animal genetic engineering technology research and Development Center, Shenzhen, Guangdong Province, China
| | - A Y Xun
- Department of Gastroenterology, Peking University Shenzhen Hospital, Shenzhen, Guangdong Province, China
| | - X X Wei
- Department of Infectious Diseases, Xinxiang Medical College, Xinxiang, Guangdong Province, China
| | - J Yao
- Department of Gastroenteroloy, Jinan University of Medical Sciences, Shenzhen Municipal People's Hospital, Shenzhen animal genetic engineering technology research and Development Center, Shenzhen, Guangdong Province, China
| | - J Y Wang
- Department of General Surgery, Shenzhen Children's Hospital, Shenzhen, Guangdong Province, China
| | - R Y Shi
- Department of Gastroenteroloy, Jinan University of Medical Sciences, Shenzhen Municipal People's Hospital, Shenzhen animal genetic engineering technology research and Development Center, Shenzhen, Guangdong Province, China
| | - G H Yang
- Department of Gastroenteroloy, Jinan University of Medical Sciences, Shenzhen Municipal People's Hospital, Shenzhen animal genetic engineering technology research and Development Center, Shenzhen, Guangdong Province, China
| | - Y X Li
- Department of Gastroenteroloy, Jinan University of Medical Sciences, Shenzhen Municipal People's Hospital, Shenzhen animal genetic engineering technology research and Development Center, Shenzhen, Guangdong Province, China
| | - Z L Xu
- Department of Gastroenteroloy, Jinan University of Medical Sciences, Shenzhen Municipal People's Hospital, Shenzhen animal genetic engineering technology research and Development Center, Shenzhen, Guangdong Province, China
| | - M G Lai
- Department of Gastroenteroloy, Jinan University of Medical Sciences, Shenzhen Municipal People's Hospital, Shenzhen animal genetic engineering technology research and Development Center, Shenzhen, Guangdong Province, China
| | - R Zhang
- Department of Gastroenteroloy, Jinan University of Medical Sciences, Shenzhen Municipal People's Hospital, Shenzhen animal genetic engineering technology research and Development Center, Shenzhen, Guangdong Province, China
| | - L-S Wang
- Department of Gastroenteroloy, Jinan University of Medical Sciences, Shenzhen Municipal People's Hospital, Shenzhen animal genetic engineering technology research and Development Center, Shenzhen, Guangdong Province, China
| | - W S Zeng
- Department of Cell Biology, Southern Medical University, Guangzhou, Guangdong Province, China
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Abstract
The influence of mexiletine (200 mg every 8 hours) on theophylline metabolism was studied in young male (n = 7) and female (n = 8) nonsmokers. A single-dose study of theophylline kinetics was performed at baseline and after 5 days of mexiletine treatment. With mexiletine the plasma clearance of theophylline decreased from 33.5 +/- 2.6 (mean +/- SEM) to 17.9 +/- 1.0 ml/kg per hour in the female group (p less than 0.001) and from 32.3 +/- 2.6 to 19.3 +/- 1.3 ml/kg per hour in the male group (p less than 0.001). The elimination half-life was prolonged by 74% and 103% in the male and female groups, respectively. Mexiletine decreased the formation of all theophylline metabolites in both groups. Within each group, the demethylation pathways were affected more than the hydroxylation pathway. These data indicate that mexiletine is a potent inhibitor of theophylline metabolism. This effect is not influenced by gender. Concurrent administration of these drugs may require a dose reduction of theophylline by as much as 50% to minimize the risk of toxicity.
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Affiliation(s)
- C M Loi
- Clinical Pharmacology and Gerontology Research Unit, Veterans Affairs Medical Center, Boise
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Yu DK, Wei XX. [Determination of iodine in foods with 131I]. Zhonghua Yu Fang Yi Xue Za Zhi 1983; 17:86-8. [PMID: 6872721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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