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Hu M, Yue JQ, Guo F, Jin S, Wang MW, Fang N. [Malignant adenomyoepithelioma of breast: report of two cases]. Zhonghua Bing Li Xue Za Zhi 2022; 51:890-892. [PMID: 36097909 DOI: 10.3760/cma.j.cn112151-20220415-00290] [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: 06/15/2023]
Affiliation(s)
- M Hu
- Depatment of Pathology, Hubei Cancer Hospital, Wuhan 430079, China
| | - J Q Yue
- Depatment of Pathology, Hubei Cancer Hospital, Wuhan 430079, China
| | - F Guo
- Depatment of Pathology, Hubei Cancer Hospital, Wuhan 430079, China
| | - S Jin
- Depatment of Pathology, Hubei Cancer Hospital, Wuhan 430079, China
| | - M W Wang
- Depatment of Pathology, Hubei Cancer Hospital, Wuhan 430079, China
| | - N Fang
- Depatment of Pathology, Hubei Cancer Hospital, Wuhan 430079, China
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Ni J, Jiang JJ, Wang CY, Wen W, Tang JK, Chen C, You Y, Hu SQ, Zhang XW, Wang MW. [Association between non-alcoholic fatty liver disease and coronary heart disease]. Zhonghua Xin Xue Guan Bing Za Zhi 2022; 50:835-839. [PMID: 35982021 DOI: 10.3760/cma.j.cn112148-20220412-00264] [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: 06/15/2023]
Affiliation(s)
- J Ni
- Department of Cardiology, Affiliated Hospital of Hangzhou Normal University, Hangzhou Institute of Cardiovascular Diseases, Hangzhou 310015, China
| | - J J Jiang
- Department of Cardiology, Affiliated Hospital of Hangzhou Normal University, Hangzhou Institute of Cardiovascular Diseases, Hangzhou 310015, China
| | - C Y Wang
- Department of Cardiology, Affiliated Hospital of Hangzhou Normal University, Hangzhou Institute of Cardiovascular Diseases, Hangzhou 310015, China
| | - W Wen
- Department of Cardiology, Affiliated Hospital of Hangzhou Normal University, Hangzhou Institute of Cardiovascular Diseases, Hangzhou 310015, China
| | - J K Tang
- Department of Cardiology, Affiliated Hospital of Hangzhou Normal University, Hangzhou Institute of Cardiovascular Diseases, Hangzhou 310015, China
| | - C Chen
- Department of Cardiology, Affiliated Hospital of Hangzhou Normal University, Hangzhou Institute of Cardiovascular Diseases, Hangzhou 310015, China
| | - Y You
- Department of Cardiology, Affiliated Hospital of Hangzhou Normal University, Hangzhou Institute of Cardiovascular Diseases, Hangzhou 310015, China
| | - S Q Hu
- Department of Cardiology, Affiliated Hospital of Hangzhou Normal University, Hangzhou Institute of Cardiovascular Diseases, Hangzhou 310015, China
| | - X W Zhang
- Department of Cardiology, Affiliated Hospital of Hangzhou Normal University, Hangzhou Institute of Cardiovascular Diseases, Hangzhou 310015, China
| | - M W Wang
- Department of Cardiology, Affiliated Hospital of Hangzhou Normal University, Hangzhou Institute of Cardiovascular Diseases, Hangzhou 310015, China
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Chen J, Wang MW, Xu JJ, Wu XY, Yao J. Gelatin methacryloyl hydrogel eye pad loaded with amniotic extract prevents symblepharon in rabbit eyes. Eur Rev Med Pharmacol Sci 2021; 24:10134-10142. [PMID: 33090421 DOI: 10.26355/eurrev_202010_23233] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The aim was to evaluate the ability of gelatin methacryloyl (GelMA) hydrogel eye pads loaded with amniotic extract to prevent symblepharon in rabbits. MATERIALS AND METHODS Forty-eight rabbits were divided into 3 groups. After ocular alkali burn, Group A (n=16) was treated with amniotic extract-loaded hydrogel eye pads placed in the conjunctival sac, Group B (n=16) was treated with amniotic membrane transplantation, and Group C (n=16) received no treatment. At 1, 2, 3, and 4 weeks post-injury, 4 rabbits from each group were selected to evaluate for symblepharon, determine epithelial healing rate and corneal neovascularization, conduct histopathology, and to quantify the expression of TGF-β1. RESULTS At 1 week post-injury, the epithelial healing rate in Groups A and B was higher than Group C (p=0.002, 0.001, respectively). At 2 weeks, corneal neovascularization in Group B was less than Group C (p=0.004). At 3 and 4 weeks, no symblepharon has been found in Group A, but it was found in some eyes in Group B and C (p=0.009, 0.013). Further, the expression of TGF-β1 in Group A was lower than in Group B and C (p<0.001). H&E staining showed that the controls in Group C had more edema and inflammatory cell infiltration in the first 2 weeks, relative to Groups A and B. At 4 weeks, Masson's Trichrome staining showed that fibers were most regularly aligned in Group A and that immuno-histochemical staining found that proliferating cell nuclear antigen was highest expressed in Group C. CONCLUSIONS Treatment with GelMA hydrogel eye pads loaded with amniotic extract shortly after chemical injury prevented symblepharon in rabbits.
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Affiliation(s)
- J Chen
- Eye Hospital, Nanjing Medical University, Nanjing, China.
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4
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Wan L, Zou DH, Wang MW, Wang YH, Huang P, Li ZD, Tian ZL, Song FX, Liu NG, Chen YJ. [Research Status of Postmortem MSCT Angiography in Forensic Science]. Fa Yi Xue Za Zhi 2021; 36:820-827. [PMID: 33550731 DOI: 10.12116/j.issn.1004-5619.2020.06.012] [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] [Received: 10/08/2019] [Indexed: 11/30/2022]
Abstract
Abstract Virtual autopsy is a new technique for investigating the morphological changes of cadaveric tissues and organs by medical imaging technology. It has been widely used in the identification of causes of death. Multislice spiral computed tomography (MSCT) has become a routine inspection method in some identification institutions, although it cannot completely replace traditional autopsy, it plays a key auxiliary or substitute role in the identification of certain abnormal causes of death. Plain MSCT scan cannot visualize cadaveric vessels, but can perform cadaveric angiography to determine vascular injury or disease. This technology has entered a rapid development period in recent years, and has made a considerable progress in contrast agent, perfusion methods and imaging methods. This article summarizes several common cadaveric MSCT angiography methods, such as systemic angiography, angiography through cardiopulmonary resuscitation, targeted angiography, and angiography by cardiac puncture, and analyzes and compares the application prospects.
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Affiliation(s)
- L Wan
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China.,Shanghai Public Health Clinical Center, Shanghai 201700, China
| | - D H Zou
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - M W Wang
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - Y H Wang
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - P Huang
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - Z D Li
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - Z L Tian
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - F X Song
- Shanghai Public Health Clinical Center, Shanghai 201700, China
| | - N G Liu
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - Y J Chen
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
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Yu X, Wang ZL, Han CL, Wang MW, Jin Y, Jin XB, Xia QH. LncRNA CASC15 functions as an oncogene by sponging miR-130b-3p in bladder cancer. Eur Rev Med Pharmacol Sci 2020; 23:9814-9820. [PMID: 31799648 DOI: 10.26355/eurrev_201911_19544] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Recent studies have revealed that long noncoding RNAs (lncRNAs) are dysregulated in malignant tumors and participates in carcinogenesis. The purpose of our study was to uncover the mechanisms underlying lncRNA CASC15 in bladder cancer (BLCA). PATIENTS AND METHODS In this research, Real Time-quantitative Polymerase Chain Reaction (RT-qPCR) was performed to detect cancer susceptibility candidate 15 (CASC15) expression in BLCA samples and cells. Besides, the wound healing assay and transwell assay were performed in BLCA cells after CASC15 was knocked down. Furthermore, the bioinformatics analysis and dual-luciferase reporter assay were conducted to explore the target miRNA of CASC15, which was further verified through rescue experiments in BLCA cells. RESULTS CASC15 expression was upregulated in BLCA tissue samples. Moreover, CASC15 downregulated the miR-130b-3p expression and promoted cell migration and invasion in BLCA in vitro. The rescue experiments also revealed that the inhibitory effects by the silence of CASC15 could be reversed through the inhibition of miR-130b-3p. CONCLUSIONS Our study suggested a vital regulatory mechanism of CASC15 in BLCA, and the CASC15/miR-130b-3p axis might serve as a new therapeutic interventional target for BLCA patients.
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Affiliation(s)
- X Yu
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China.
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Peng LQ, Wan L, Wang MW, Li Z, Wang P, Liu TA, Wang YH, Zhao H. [Comparison of Three CNN Models Applied in Bone Age Assessment of Pelvic Radiographs of Adolescents]. Fa Yi Xue Za Zhi 2020; 36:622-630. [PMID: 33295161 DOI: 10.12116/j.issn.1004-5619.2020.05.004] [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] [Received: 07/01/2020] [Indexed: 11/30/2022]
Abstract
Abstract Objective To compare the performance of three deep-learning models (VGG19, Inception-V3 and Inception-ResNet-V2) in automatic bone age assessment based on pelvic X-ray radiographs. Methods A total of 962 pelvic X ray radiographs taken from adolescents (481 males, 481 females) aged from 11.0 to 21.0 years in five provinces and cities of China were collected, preprocessed and used as objects of study. Eighty percent of these X ray radiographs were divided into training set and validation set with random sampling method and used for model fitting and hyper-parameters adjustment. Twenty percent were used as test sets, to evaluate the ability of model generalization. The performances of the three models were assessed by comparing the root mean square error (RMSE), mean absolute error (MAE) and Bland-Altman plots between the model estimates and the chronological ages. Results The mean RMSE and MAE between bone age estimates of the VGG19 model and the chronological ages were 1.29 and 1.02 years, respectively. The mean RMSE and MAE between bone age estimates of the Inception-V3 model and the chronological ages were 1.17 and 0.82 years, respectively. The mean RMSE and MAE between bone age estimates of the Inception-ResNet-V2 model and the chronological ages were 1.11 and 0.84 years, respectively. The Bland-Altman plots showed that the mean value of differences between bone age estimates of Inception-ResNet-V2 model and the chronological ages was the lowest. Conclusion In the automatic bone age assessment of adolescent pelvis, the Inception-ResNet-V2 model performs the best while the Inception-V3 model achieves a similar accuracy as VGG19 model.
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Affiliation(s)
- L Q Peng
- Guangdong Province Translational Forensic Medicine Engineering Technology Research Center, Faculty of Forensic Medicine, Zhongshan School of Medicine, Sun-Yat Sen University, Guangzhou 510080, China.,Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - L Wan
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - M W Wang
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - Z Li
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - P Wang
- Shanghai Zhenpu Information Technology Co. Ltd., Shanghai 200444, China
| | - T A Liu
- Shanghai Zhenpu Information Technology Co. Ltd., Shanghai 200444, China
| | - Y H Wang
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - H Zhao
- Guangdong Province Translational Forensic Medicine Engineering Technology Research Center, Faculty of Forensic Medicine, Zhongshan School of Medicine, Sun-Yat Sen University, Guangzhou 510080, China
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He XW, Lai JS, Cheng J, Wang MW, Liu YJ, Xiao ZC, Xu C, Li SS, Zeng HS. [Impact of complicated myocardial injury on the clinical outcome of severe or critically ill COVID-19 patients]. Zhonghua Xin Xue Guan Bing Za Zhi 2020; 48:456-460. [PMID: 32171190 DOI: 10.3760/cma.j.cn112148-20200228-00137] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [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 analyze the clinical characteristics of the severe or critically ill patients with novel coronavirus pneumonia (COVID-19), and evaluate the impact of complicated myocardial injury on the prognosis of these patients. Methods: A retrospective study was conducted in 54 patients who admitted to Tongji hospital from February 3, 2020 to February 24, 2020 and met the criteria of severe or critical conditions of COVID-19. The clinical characteristics and hospital mortality rate were analyzed and compared between the patients with or without myocardial injury, which was defined with 3 times higher serum cardiac troponin value. Results: The age of the 54 patients was 68.0(59.8, 74.3) years. Among all the patients, 24 (44.4%) patients were complicated with hypertension, 13 (24.1%) with diabetes, 8 (14.8%) with coronary heart disease, and 3 (5.6%) with previous cerebral infarction. During hospitalization, 24 (44.4%) of the patients were complicated with myocardial injury and 26 (48.1%) patients died in hospital. In-hospital mortality was significantly higher in patients with myocardial injury than in patients without myocardial injury (14 (60.9%) vs. 8 (25.8%), P=0.013). Moreover, the levels of C-reactive protein (153.6 (80.3, 240.7) ng/L vs. 49.8 (15.9, 101.9) ng/L) and N-terminal pro-B-type natriuretic peptide (852.0 (400.0, 2 315.3) ng/L vs. 197.0 (115.3, 631.0) ng/L) were significantly higher than patients without myocardial injury (all P<0.01). Conclusions: Prevalence of myocardial injury is high among severe or critically ill COVID-19 patients. Severe or critically ill COVID-19 patients with myocardial injury face a significantly higher risk of in-hospital mortality. The study suggests that it is important to monitor and manage the myocardial injury during hospitalization for severe or critically ill COVID-19 patients.
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Affiliation(s)
- X W He
- Department of Cardiology, Tongji Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - J S Lai
- Department of Cardiology, Tongji Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - J Cheng
- Department of Cardiology, Tongji Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - M W Wang
- Department of Cardiology, Tongji Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Y J Liu
- Department of Cardiology, Tongji Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Z C Xiao
- Department of Cardiology, Tongji Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - C Xu
- Department of Cardiology, Tongji Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - S S Li
- Department of Emergency,Tongji Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - H S Zeng
- Department of Cardiology, Tongji Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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Chen GF, Cheng YR, Ye L, Wang MW, Zhou MY, Zhang F, Chen J, Feng ZH. Psychological support and the COVID-19 - A short report. Eur Rev Med Pharmacol Sci 2020; 24:8185-8186. [PMID: 32767347 DOI: 10.26355/eurrev_202008_22506] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The World Health Organization reported a cluster of cases of pneumonia of unknown cause detected on December 31, 2019 in China. Unfortunately, a 34-year-old Italian nurse has committed suicide after testing positive for coronavirus. It was the second case of suicide by a nurse in an Italian hospital and occurred only a few days after the first suicide. These consecutive suicides have aroused concern, and it is necessary to investigate the psychological issues of the medical staff in Italy regarding the COVID-19.
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Affiliation(s)
- G-F Chen
- Affiliated Hospital of Hangzhou Normal University, Hangzhou, China.
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Yu X, Wang ZL, Han CL, Wang MW, Jin Y, Jin XB, Xia QH. LncRNA CASC15 functions as an oncogene by sponging miR-130b-3p in bladder cancer. Eur Rev Med Pharmacol Sci 2020; 24:7203. [PMID: 32706041 DOI: 10.26355/eurrev_202007_21853] [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: 11/12/2022]
Abstract
Since this article has been suspected of research misconduct and the corresponding authors did not respond to our request to prove originality of data and figures, "LncRNA CASC15 functions as an oncogene by sponging miR-130b-3p in bladder cancer, by X. Yu, Z.-L. Wang, C.-L. Han, M.-W. Wang, Y. Jin, X.-B. Jin, Q.-H. Xia, published in Eur Rev Med Pharmacol Sci 2019; 23 (22): 9814-9820-DOI: 10.26355/eurrev_201911_19544-PMID 31799648" has been withdrawn. The Publisher apologizes for any inconvenience this may cause. https://www.europeanreview.org/article/19544.
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Affiliation(s)
- X Yu
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
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Liu G, Ji GH, Cheng YR, Zhou MY, Wang MW, Ye L, Zhang F, Chen J, Feng ZH. Editorial - Children infected by SARS-CoV-2. Eur Rev Med Pharmacol Sci 2020; 24:7192-7193. [PMID: 32633415 DOI: 10.26355/eurrev_202006_21714] [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: 11/12/2022]
Affiliation(s)
- G Liu
- Hangzhou Emergency Medical Center, Hangzhou, China.
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Chen J, Guo YC, Ye L, Zhou MY, Cheng YR, Wang MW, Feng ZH. Internet+ and COVID-19 - A short report. Eur Rev Med Pharmacol Sci 2020; 24:5176-5177. [PMID: 32432783 DOI: 10.26355/eurrev_202005_21213] [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: 11/12/2022]
Abstract
OBJECTIVE COVID-19 broke out in China at the end of 2019 and spread rapidly around the world. The World Health Organization designated COVID-19 as a global pandemic on March 11, 2020. China has adopted its own country-specific comprehensive prevention and control measures, and, as a result, the domestic COVID-19 epidemic became effectively controlled in China in mid-March 2020. During the COVID-19 epidemic, remarkable changes have taken place in China's domestic learning, living, and working methods, primarily in terms of the synergy between the Internet Plus (Internet+) strategy and the leadership of the Chinese government.
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Affiliation(s)
- J Chen
- Affiliated Hospital of Hangzhou Normal University, Hangzhou, China.
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Feng ZH, Zhou MY, Ji GH, Ye L, Cheng YR, Wang MW, Chen J. Faced with 2019-nCoV outbreak, we have learned our lessons from SARS of 2003. Eur Rev Med Pharmacol Sci 2020; 24:4068-4069. [PMID: 32374013 DOI: 10.26355/eurrev_202004_20982] [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: 11/12/2022]
Affiliation(s)
- Z-H Feng
- Department of Neurology, Affiliated Hospital of Guizhou Medical University, Guiyang, China.
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Affiliation(s)
- J Chen
- Affiliated Hospital of Hangzhou Normal University, Hangzhou, China.
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Wang MW, Zhou MY, Yu P, Cheng YR, Ye L, Chen J, Feng ZH. Quarantine hospitals are essential for COVID-19 contention. Eur Rev Med Pharmacol Sci 2020; 24:3442-3443. [PMID: 32329814 DOI: 10.26355/eurrev_202004_20798] [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: 11/12/2022]
Affiliation(s)
- M-W Wang
- Department of Cardiology, Affiliated Hospital of Hangzhou Normal University, Hangzhou, China.
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Gao SY, Wang MW, Tang H, Zhang S, Qi CB, Wang MX, Chang Q, Yue JQ. [Application of intraoperative rapid immunohistochemistry in diagnosis of difficult cases]. Zhonghua Bing Li Xue Za Zhi 2020; 49:265-268. [PMID: 32187900 DOI: 10.3760/cma.j.issn.0529-5807.2020.03.011] [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)
- S Y Gao
- Department of Pathology, Hubei Cancer Hospital, Wuhan 430079, China
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Wang MW, Zhou MY, Ji GH, Ye L, Cheng YR, Feng ZH, Chen J. Mask crisis during the COVID-19 outbreak. Eur Rev Med Pharmacol Sci 2020; 24:3397-3399. [PMID: 32271457 DOI: 10.26355/eurrev_202003_20707] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
On December 31, 2019, the World Health Organization (WHO) reported a cluster of cases of pneumonia of unknown cause detected in Wuhan City, Hubei Province, China. As of February 29, 2020, the National Health Commission of China has reported 79,389 confirmed cases of SARS-CoV-2 infection in 34 provinces. The masks can be used to block respiratory transmission from human to human, and are an effective way to control influenza. It is, therefore, necessary to wear a mask when respiratory infectious diseases are prevalent. China has a population of 1.4 billion. Assuming that two-thirds of the people in China must wear a mask every day, the daily demand for masks will reach 900 million. The Chinese government has taken many measures to solve these problems. Additionally, more measures should be taken to properly dispose of mask garbage. Although the outbreak originated in China, person-to-person transmission of SARS-CoV-2 has been confirmed, which means that it can be spread to anywhere in the world if prevention measures fail. The issues regarding face mask shortages and garbage in China, therefore, deserve worldwide attention.
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Affiliation(s)
- M-W Wang
- Affiliated Hospital of Hangzhou Normal University, Hangzhou, China.
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Peng LQ, Wan L, Wang MW, Li Z, Zhao H, Wang YH. Research Progress and Prospect of Machine Learning in Bone Age Assessment. Fa Yi Xue Za Zhi 2020; 36:91-98. [PMID: 32250086 DOI: 10.12116/j.issn.1004-5619.2020.01.018] [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] [Received: 09/18/2019] [Indexed: 11/30/2022]
Abstract
Abstract Bone age assessment has always been one of the key issues and difficulties in forensic science. With the gradual development of machine learning in many industries, it has been widely introduced to imageology, genomics, oncology, pathology, surgery and other medical research fields in recent years. The reason why the above research fields can be closely combined with machine learning, is because the research subjects of the above branches of medicine belong to the computer vision category. Machine learning provides unique advantages for computer vision research and has made breakthroughs in medical image recognition. Based on the advantages of machine learning in image recognition, it was combined with bone age assessment research, in order to construct a recognition model suitable for forensic skeletal images. This paper reviews the research progress in bone age assessment made by scholars at home and abroad using machine learning technology in recent years.
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Affiliation(s)
- L Q Peng
- Faculty of Forensic Medicine, Zhongshan School of Medicine, Sun-Yat Sen University, Guangzhou 510080, China
| | - L Wan
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - M W Wang
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - Z Li
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - H Zhao
- Faculty of Forensic Medicine, Zhongshan School of Medicine, Sun-Yat Sen University, Guangzhou 510080, China
| | - Y H Wang
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
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Feng ZH, Cheng YR, Ye L, Zhou MY, Wang MW, Chen J. Is home isolation appropriate for preventing the spread of COVID-19. Public Health 2020; 183:4-5. [PMID: 32388010 PMCID: PMC7141470 DOI: 10.1016/j.puhe.2020.03.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Accepted: 03/12/2020] [Indexed: 11/17/2022]
Affiliation(s)
- Z-H Feng
- Department of Neurology, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Y-R Cheng
- Zhejiang Academy of Medical Sciences, Hangzhou, 310012, China; Hangzhou Medical College, Hangzhou, 311300, China
| | - L Ye
- Basic Medical College,Guizhou Medical University, Guizhou, 550004, China
| | - M-Y Zhou
- Hangzhou Medical College, Hangzhou, 311300, China
| | - M-W Wang
- Affiliated Hospital of Hangzhou Normal University, Hangzhou, 310015, China
| | - J Chen
- Affiliated Hospital of Hangzhou Normal University, Hangzhou, 310015, China.
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19
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Dong HW, Sun Y, Qian H, Jian JQ, Shao Y, Li ZD, Zou DH, Liu NG, Wan L, Wang MW, Chen YJ, Zhang JH. Research Progress on Postmortem Changes of Computed Tomography Imaging Characteristics on Corpses. Fa Yi Xue Za Zhi 2019; 35:716-720. [PMID: 31970960 DOI: 10.12116/j.issn.1004-5619.2019.06.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Indexed: 11/30/2022]
Abstract
Abstract Postmortem changes on corpses appear immediately after death, and can transform the original structure characteristics of the corpse to different degrees as well as show specific changes on computed tomography (CT) images, sometimes with false positives and false negatives, influencing the identification of injuries or diseases. This paper systematically summarizes the postmortem changes of computed tomography imaging characteristics on corpses, to further expand the application of virtopsy in the practices of forensic pathology identification, and provide reference for the identification of injuries, diseases and changes after normal death.
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Affiliation(s)
- H W Dong
- Shanghai Key Lab of Forensic Medicine, Key Lab of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - Y Sun
- Criminal Investigation Detachment of Fuzhou Public Security Bureau, Fuzhou 350011, China
| | - H Qian
- Anhui Quancheng Judicial Authentication Center, Hefei 230041, China
| | - J Q Jian
- Shanghai Key Lab of Forensic Medicine, Key Lab of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - Y Shao
- Shanghai Key Lab of Forensic Medicine, Key Lab of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - Z D Li
- Shanghai Key Lab of Forensic Medicine, Key Lab of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - D H Zou
- Shanghai Key Lab of Forensic Medicine, Key Lab of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - N G Liu
- Shanghai Key Lab of Forensic Medicine, Key Lab of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - L Wan
- Shanghai Key Lab of Forensic Medicine, Key Lab of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - M W Wang
- Shanghai Key Lab of Forensic Medicine, Key Lab of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - Y J Chen
- Shanghai Key Lab of Forensic Medicine, Key Lab of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - J H Zhang
- Shanghai Key Lab of Forensic Medicine, Key Lab of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
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20
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Guo F, Zhang YGL, Wu D, Qin L, Wang MW, Jin S, Tang H, Feng X, Yue JQ. [The effects of environmental friendly reagents on molecular detection of biopsy specimens processed by ultrasonic tissue processor]. Zhonghua Bing Li Xue Za Zhi 2019; 48:805-808. [PMID: 31594048 DOI: 10.3760/cma.j.issn.0529-5807.2019.10.012] [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)
- F Guo
- Department of Pathology, Hubei Cancer Hospital, Wuhan 430070, China
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21
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Zhuo PP, Wang MW, Yu XY, Wan L, Tan SL, Chen JM, Xia WT. Assessment of the Original Height of L 1~2 after Vertebral Compression Fracture. Fa Yi Xue Za Zhi 2018; 34:359-362. [PMID: 30465398 DOI: 10.12116/j.issn.1004-5619.2018.04.003] [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] [Received: 05/02/2017] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To explore the assessment method of original height of L1-2 after vertebral compression fracture and its application value in forensic clinical practice. METHODS A total of 154 normal thoracic and lumbar X-ray films were collected, and 140 cases were used as experimental group while 14 cases as validation group. The heights of anterior (Ha) and posterior (Hp) vertebral body of T₁₂-L₃ vertebrae in each X-ray image were measured. In the experimental group, the correlation analysis between HaL₁ and HaT₁₂, HpT₁₂, HpL₁, HaL₂ and HpL₂ was carried out, and regression equation was established via fitting. The correlation analysis between HaL₂ and HaL₁, HpL₁, HpL₂, HaL₃, HpL₃ was performed, and the regression equation was also established via fitting. The difference between the predicted and measured values of HaL₁ and HaL₂ in validation group was compared. RESULTS In the 140 normal subjects, HaL₁ (y₁) was well correlated with HaT₁₂ (x₁) and HaL₂(x₂), and the multiple linear regression equation was y₁=2.545+0.423 x₁+0.486 x₂ (determining coefficient R²=0.712, P<0.05; F=169.206, P<0.05). There was no significant difference between the predicted and actual measured values of HaL₁ in the validation group ( P>0.05). HaL₂ (y₂) was well correlated with HaL₁ (x₃) and HaL₃ (x₄), and the multiple linear regression equation was y₂=4.354+0.530 x₃+0.349 x₄ (determining coefficient R²=0.689, P<0.05; F=151.575, P<0.05). There was no significant difference between the predicted and actual measured values of HaL₂ in the validation group ( P>0.05). CONCLUSIONS It is more appropriate to evaluate the original height of L₁ or L₂ single vertebrae by comparing with the height of the anterior edge of the upper and lower adjacent vertebral bodies.
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Affiliation(s)
- P P Zhuo
- Department of Forensic Medicine, Wenzhou Medical University, Wenzhou 325035, China.,Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - M W Wang
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - X Y Yu
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - L Wan
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - S L Tan
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China.,Department of Forensic Medicine, Medical College of Soochow University, Suzhou 215006, China
| | - J M Chen
- Department of Forensic Medicine, Medical College of Soochow University, Suzhou 215006, China
| | - W T Xia
- Department of Forensic Medicine, Medical College of Soochow University, Suzhou 215006, China
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22
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Chen QR, Yang F, Feng X, Wang MX, Jin S, Wang MW, Wu D, Zhang YGL, Wu YM, Wang HB, Chen QB. [Improving the methods for processing specimens derived from endobronchial ultrasound-guided transbronchial needle aspiration so as to increase the pathological diagnosis accuracy]. Zhonghua Bing Li Xue Za Zhi 2018; 47:635-637. [PMID: 30107673 DOI: 10.3760/cma.j.issn.0529-5807.2018.08.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
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23
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Hu TH, Huo Z, Liu TA, Wang F, Wan L, Wang MW, Chen T, Wang YH. [Automated Assessment for Bone Age of Left Wrist Joint in Uyghur Teenagers by Deep Learning]. Fa Yi Xue Za Zhi 2018; 34:27-32. [PMID: 29577701 DOI: 10.3969/j.issn.1004-5619.2018.01.006] [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] [Received: 11/20/2017] [Indexed: 11/18/2022]
Abstract
OBJECTIVES To realize the automated bone age assessment by applying deep learning to digital radiography (DR) image recognition of left wrist joint in Uyghur teenagers, and explore its practical application value in forensic medicine bone age assessment. METHODS The X-ray films of left wrist joint after pretreatment, which were taken from 245 male and 227 female Uyghur nationality teenagers in Uygur Autonomous Region aged from 13.0 to 19.0 years old, were chosen as subjects. And AlexNet was as a regression model of image recognition. From the total samples above, 60% of male and female DR images of left wrist joint were selected as net train set, and 10% of samples were selected as validation set. As test set, the rest 30% were used to obtain the image recognition accuracy with an error range in ±1.0 and ±0.7 age respectively, compared to the real age. RESULTS The modelling results of deep learning algorithm showed that when the error range was in ±1.0 and ±0.7 age respectively, the accuracy of the net train set was 81.4% and 75.6% in male, and 80.5% and 74.8% in female, respectively. When the error range was in ±1.0 and ±0.7 age respectively, the accuracy of the test set was 79.5% and 71.2% in male, and 79.4% and 66.2% in female, respectively. CONCLUSIONS The combination of bone age research on teenagers' left wrist joint and deep learning, which has high accuracy and good feasibility, can be the research basis of bone age automatic assessment system for the rest joints of body.
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Affiliation(s)
- T H Hu
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China.,Department of Forensic Science, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China
| | - Z Huo
- People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830000, China
| | - T A Liu
- Shanghai Fanyang Information Technology Co., LTD., Shanghai 200444, China
| | - F Wang
- People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830000, China
| | - L Wan
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - M W Wang
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - T Chen
- Department of Forensic Science, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China
| | - Y H Wang
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
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24
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Hu TH, Wan L, Liu TA, Wang MW, Chen T, Wang YH. [Advantages and Application Prospects of Deep Learning in Image Recognition and Bone Age Assessment]. Fa Yi Xue Za Zhi 2017; 33:629-634. [PMID: 29441773 DOI: 10.3969/j.issn.1004-5619.2017.06.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Indexed: 11/18/2022]
Abstract
Deep learning and neural network models have been new research directions and hot issues in the fields of machine learning and artificial intelligence in recent years. Deep learning has made a breakthrough in the applications of image and speech recognitions, and also has been extensively used in the fields of face recognition and information retrieval because of its special superiority. Bone X-ray images express different variations in black-white-gray gradations, which have image features of black and white contrasts and level differences. Based on these advantages of deep learning in image recognition, we combine it with the research of bone age assessment to provide basic datum for constructing a forensic automatic system of bone age assessment. This paper reviews the basic concept and network architectures of deep learning, and describes its recent research progress on image recognition in different research fields at home and abroad, and explores its advantages and application prospects in bone age assessment.
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Affiliation(s)
- T H Hu
- Department of Forensic Science, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China.,Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - L Wan
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - T A Liu
- Shanghai Fanyang Information Technology Co., LTD., Shanghai 200444, China
| | - M W Wang
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - T Chen
- Department of Forensic Science, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China
| | - Y H Wang
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
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25
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Wang MW, Liu J, Liu Q, Xu QH, Li TF, Jin S, Xia TS. LncRNA SNHG7 promotes the proliferation and inhibits apoptosis of gastric cancer cells by repressing the P15 and P16 expression. Eur Rev Med Pharmacol Sci 2017; 21:4613-4622. [PMID: 29131253] [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: 06/07/2023]
Abstract
OBJECTIVE To investigate the relative expression of long non-coding small nucleolar RNA host gene 7 (lncRNA SNHG7) in gastric cancer tissues and cells, the effect of lncRNA SNHG7 on proliferation and apoptosis of gastric cancer cells in vivo and in vitro experiments, and the relevant mechanism. PATIENTS AND METHODS Real-time quantitative polymerase chain reaction (qRT-PCR) experiment was performed to detect the relative expressions of SNHG7 in the gastric cancer tissues and cells. In presence of lip2000, SNHG7 interference sequence was transiently transfected into the gastric cancer cells followed by transfection efficiency detection by qRT-PCR. Cell count kit 8 (CCK-8) and clone formation assay were also carried out to detect the effect of SNHG7 on the proliferation of gastric cancer cells, flow cytometry (FCM) to detect the effect of SNHG7 on the cycle and apoptotic rate of gastric cancer cells, in vivo experiment to detect the effect of SNHG7 on biological behaviors of gastric cancer cells, and Western blotting assay to detect the variations in expression of downstream proteins after SNHG7 expression was interfered. RESULTS The qRT-PCR experiment showed that in a total of 68 cases of cancer tissues and tumor-adjacent tissues, the relative expression of SNHG7 was upregulated in 48 cases of gastric cancer tissues and 5 gastric cancer cell lines. The in vitro experiments showed that after SNHG7 expression was interfered, the proliferation of gastric cancer cells was inhibited with an increase in apoptotic rate and arrest of cell cycle in G1/G0 phase. Experiment on nude-mouse transplanted tumor model confirmed that after SNHG7 expression was interfered, in vivo tumor growth was inhibited, and the Western blotting assay revealed that regulation of p15 and p16 expressions constituted a part of the potential molecular mechanism. CONCLUSIONS Relative expression of SNHG7 is upregulated in gastric cancer tissues and cells, and partially contributes to the development and progression of gastric cancer through regulation of p15 and p16 expressions. Thus, interference on expression of SNHG7 can provide critical the theoretical basis for inverting the malignant phenotype of gastric cancer in clinical practice.
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Affiliation(s)
- M-W Wang
- Department of Pathology, Hubei Cancer Hospital, Wuhan, China.
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26
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Tan SL, Chen JM, Yu XY, Wang MW, Zhuo PP, Zhou S, Xia WT. [Comparison of Measurement Methods of Exophthalmos and Its Forensic Significance]. Fa Yi Xue Za Zhi 2017; 33:353-356. [PMID: 29219263 DOI: 10.3969/j.issn.1004-5619.2017.04.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Indexed: 11/18/2022]
Abstract
OBJECTIVES To compare the differences between Hertel exophthalmometry and CT on exophthalmos measurement, and explore its practical application value in forensic medicine. METHODS Fifty-six normal individuals without eye injuries or diseases were selected as the control group. The absolute values of exophthalmos were measured in the standardized CT image workstation. The difference of binocular exophthalmos was compared in normal group. Forty-seven cases with unilateral orbital fracture were divided into injured eye group and normal eye group according to the presence of binocular orbital fractures. The differences of the absolute values of eophthalmos from the same eye and the relative values of eophthalmos between two eyes for same person measured by Hertel exophthalmometry and CT were analyzed. RESULTS There was no statistical difference of exophthalmos between the normal eyes measured by CT method. In the normal eye group, the absolute value of exophthalmos measured by CT method was (16.66±5.41) mm, which was (16.16±4.45) mm when measured by the Hertel exophthalmometry method. There was no statistical difference between two groups (P>0.05). In the injured eye group, there was statistical difference between the absolute values of exophthalmos measured by two measurement methods ( P<0.05). There was no statistical difference of the relative values of exophthalmos between the injured eyes and the normal eyes by two measurement methods (P>0.05). CONCLUSIONS CT method has a good consistency with Hertel exophthalmometry, which can be applied into the practice of medicolegal expertise.
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Affiliation(s)
- S L Tan
- Department of Forensic Medicine, Medical College of Soochow University, Suzhou 215006, China.,Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Institute of Forensic Science, Ministry of Justice, PRC, Shanghai 200063, China
| | - J M Chen
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Institute of Forensic Science, Ministry of Justice, PRC, Shanghai 200063, China
| | - X Y Yu
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Institute of Forensic Science, Ministry of Justice, PRC, Shanghai 200063, China
| | - M W Wang
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Institute of Forensic Science, Ministry of Justice, PRC, Shanghai 200063, China
| | - P P Zhuo
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Institute of Forensic Science, Ministry of Justice, PRC, Shanghai 200063, China.,School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - S Zhou
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Institute of Forensic Science, Ministry of Justice, PRC, Shanghai 200063, China
| | - W T Xia
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Institute of Forensic Science, Ministry of Justice, PRC, Shanghai 200063, China
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27
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Jin S, Zhang YGL, Guo F, Deng YT, Wang MW. [Improved immunohistochemical pancytokeratin and elastic fiber staining method in assessment of pleural invasion in lung cancer]. Zhonghua Bing Li Xue Za Zhi 2017; 46:340-341. [PMID: 28468044 DOI: 10.3760/cma.j.issn.0529-5807.2017.05.014] [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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28
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Fang N, Yang QJ, Deng YT, Feng X, Xia HS, Zhang YGL, Wang MW, Wu D, Zhou H, Guo F. [Epithelioid inflammatory myofibroblastic sarcoma of small bowel mesentery: report of a case]. Zhonghua Bing Li Xue Za Zhi 2017; 46:201-202. [PMID: 28297765 DOI: 10.3760/cma.j.issn.0529-5807.2017.03.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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29
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Smith GC, Zhang ZY, Mulvey T, Petersen N, Lach S, Xiu P, Phillips A, Han W, Wang MW, Shepherd PR. Clozapine directly increases insulin and glucagon secretion from islets: implications for impairment of glucose tolerance. Schizophr Res 2014; 157:128-33. [PMID: 24906220 DOI: 10.1016/j.schres.2014.05.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Revised: 04/04/2014] [Accepted: 05/03/2014] [Indexed: 01/31/2023]
Abstract
Second generation antipsychotics cause derangements in glucose metabolism that are often interpreted as insulin resistance. In previous studies we have shown that this is not classical insulin resistance but the drugs were actually inducing a hyperglycaemic state associated with elevated hepatic glucose output (HGO) and increased levels of glucagon and insulin. However, it remains unclear whether these effects are directly elicited by drug actions in the liver and pancreas, or whether they are indirectly mediated. Here we investigated if clozapine is capable of inducing insulin resistance in the liver or enhancing insulin and glucagon secretion from the pancreas. It was observed that insulin signalling was elevated in livers from animals treated with clozapine indicating there was no insulin resistance in the early steps of insulin signalling. To explore whether the defects arise at later stages of insulin action we used an isolated perfused liver system. In this model, clozapine had no direct effect on insulin's counter regulatory effect on epinephrine-induced HGO. In isolated mouse islets clozapine significantly increased glucose-stimulated insulin secretion while simultaneously blocking glucose-induced reductions in glucagon secretion. We also show that the non-peptidic glucagon receptor like peptide-1 (GLP-1) receptor agonist Boc5 was able to overcome the inhibitory effects of clozapine on glucose metabolism. Taken together these results suggest that clozapine does not have any direct effect on glucose metabolism in the liver but it simultaneously stimulates insulin and glucagon secretion, a situation that would allow for the concurrent presence of high glucose and high insulin levels in treated animals.
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Affiliation(s)
- G C Smith
- Department of Molecular Medicine and Pathology, University of Auckland, Auckland, New Zealand; Department of Pharmacology, University of New South Wales, NSW, Australia
| | - Z Y Zhang
- The National Centre for Drug Screening and the CAS Key Laboratory of Receptor Research, Shanghai, Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - T Mulvey
- Department of Molecular Medicine and Pathology, University of Auckland, Auckland, New Zealand
| | - N Petersen
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research (A*STAR), Singapore; Hubrecht Institute for Development Biology and Stem Cell Research, Utrecht, The Netherlands
| | - S Lach
- Department of Molecular Medicine and Pathology, University of Auckland, Auckland, New Zealand
| | - P Xiu
- Department of General Surgery, Qianfoshan Hospital, Shandong University, Jinan 250014, China
| | - A Phillips
- School of Biological Sciences, University of Auckland, Auckland, New Zealand
| | - W Han
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research (A*STAR), Singapore
| | - M-W Wang
- The National Centre for Drug Screening and the CAS Key Laboratory of Receptor Research, Shanghai, Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.
| | - P R Shepherd
- Department of Molecular Medicine and Pathology, University of Auckland, Auckland, New Zealand; The Maurice Wilkins Centre, Auckland, New Zealand.
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Zhang QQ, Wang JG, Wang MW, Bu J, Zhu SW, Wang R, Gao BZ, Yuan XC. A modified fractal zone plate with extended depth of focus in spectral domain optical coherence tomography. J Opt 2011; 13:10.1088/2040-8978/13/5/055301. [PMID: 24353894 PMCID: PMC3864818 DOI: 10.1088/2040-8978/13/5/055301] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
In optical coherence tomography (OCT) systems, there is a trade-off between the depth of focus (DOF) and lateral resolution when conventional lenses are used. We propose a new method that employs a modified fractal generalized zone plate (MFraGZP) combined with a conventional lens to improve the trade-off effect, with an extended DOF of about 2.5 mm (14 times larger) while the lateral resolution is maintained at ~9.5 μm. As an example, images of the calibration microspheres are obtained and demonstrated with the extended DOF in a spectral domain OCT system.
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Affiliation(s)
- Q Q Zhang
- Institute of Modern Optics, Key Laboratory of Optoelectronic Information Science and Technology, Ministry of Education of China, Nankai University, Tianjin 300071, People’s Republic of China
| | - J G Wang
- Institute of Modern Optics, Key Laboratory of Optoelectronic Information Science and Technology, Ministry of Education of China, Nankai University, Tianjin 300071, People’s Republic of China
| | - M W Wang
- Institute of Modern Optics, Key Laboratory of Optoelectronic Information Science and Technology, Ministry of Education of China, Nankai University, Tianjin 300071, People’s Republic of China
| | - J Bu
- Institute of Modern Optics, Key Laboratory of Optoelectronic Information Science and Technology, Ministry of Education of China, Nankai University, Tianjin 300071, People’s Republic of China
| | - S W Zhu
- Nankai University Affiliated Hospital, Tianjin 300121, People’s Republic of China
| | - R Wang
- Department of Bioengineering, Clemson University, Clemson, SC 29634, USA
| | - Bruce Z Gao
- Department of Bioengineering, Clemson University, Clemson, SC 29634, USA
| | - X-C Yuan
- Institute of Modern Optics, Key Laboratory of Optoelectronic Information Science and Technology, Ministry of Education of China, Nankai University, Tianjin 300071, People’s Republic of China
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Wang MW. Effects of salvianolate on cardiomyocytic apoptosis and heart function in a swine model of acute myocardial infarction. ACTA ACUST UNITED AC 2009; 7:140-4. [DOI: 10.3736/jcim20090209] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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32
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Zhou C, Wu G, Feng Y, Li Q, Su H, Mais DE, Zhu Y, Li N, Deng Y, Yang D, Wang MW. Discovery and biological characterization of a novel series of androgen receptor modulators. Br J Pharmacol 2008. [DOI: 10.1038/bjp.2008.251] [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: 11/09/2022] Open
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Xu ZJ, Liu W, Zhang N, Wang MW, Zhu XN. Effect of intensity clamping on laser ablation by intense femtosecond laser pulses. Opt Express 2008; 16:3604-3609. [PMID: 18542453 DOI: 10.1364/oe.16.003604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
We have experimentally demonstrated that because of intensity clamping, when the laser peak power is higher than the critical power for self-focusing, further increase of the laser power cannot result in corresponding increase of the laser ablation rate of a metallic sample placed in gases. The ablation rate will finally approach a stabilized value. Also, the experimental technique implemented in our work could be potentially used to measure the self-focusing critical power and the nonlinear refractive index.
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Affiliation(s)
- Z J Xu
- Institute of Modern Optics, Nankai University, Key Laboratory of Opto-electronic Information Science and Technology, Education Ministry of China, Tianjin 300071, China
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Ning M, Zhou C, Weng J, Zhang S, Chen D, Yang C, Wang H, Ren J, Zhou L, Jin C, Wang MW. Biological activities of a novel selective oestrogen receptor modulator derived from raloxifene (Y134). Br J Pharmacol 2006; 150:19-28. [PMID: 17115070 PMCID: PMC2013854 DOI: 10.1038/sj.bjp.0706960] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND AND PURPOSE Selective oestrogen receptor (ER) modulators (SERMs) are of great value in the treatment of breast cancer and osteoporosis. The aim of this study was to characterize pharmacologically a new class of SERMs synthesized based on the core structure of raloxifene. EXPERIMENTAL APPROACH Competitive receptor binding and luciferase-based reporter methods were used to study the bioactivities of raloxifene analogues, followed by efficacy determination in breast cancer cell proliferation assay. ER antagonist effects were investigated in female rats by measuring uterine and mammary gland growth, using wet weight, BrdU incorporation and terminal end bud (TEB) as indicators. KEY RESULTS Five analogues, belonging to two different structural series and display higher binding affinities for ERalpha than ERbeta were functionally evaluated. One such analogue, Y134, exhibited potent antagonist activity at ERs in CV-1 cells cotransfected with plasmids containing ERalpha or ERbeta and oestrogen-response element-driven luciferase. The estimated IC(50) value was 0.52 nM for ERalpha and 2.94 nM for ERbeta, comparable to that of raloxifene. Little cytotoxicity was observed at Y134 concentrations below 10 microM. Y134 suppressed oestrogen-stimulated proliferation of ER-positive human breast cancer MCF-7 and T47D cells. At an identical dose, administered to ovariectomized rats, Y134 was more effective than raloxifene at arresting oestrogen-induced outgrowth of TEB and mammary gland DNA synthesis, but their inhibitory effects on the uterus were comparable. CONCLUSIONS AND IMPLICATIONS Y134 is a potent ER antagonist with better mammary gland selectivity than raloxifene and shows potential for development as a new SERM for therapeutic use.
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Affiliation(s)
- M Ning
- Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Zhangjiang High-tech Park, Pudong New District, Shanghai, China
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35
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Abstract
Dracorhodin perchlorate, an anthocyanin red pigment, induces human premyelocytic leukemia HL-60 cell death through apoptotic pathway. Caspase -1, -3, -8, -9, and -10 inhibitors partially reversed the cell death induced by dracorhodin perchlorate. Caspase-3 and -8 were activated followed to the degradation of caspase-3 substrates, inhibitor of caspase-activated DNase (ICAD) and poly-(ADP-ribose) polymerase (PARP). Dracorhodin perchlorate up-regulated the expression ratio of mitochondrial proteins, Bax/Bcl-XL. The cell death was accompanied with phosphorylation of ERK, JNK and p38 MAPK and partially reduced by MEK inhibitor (PD98059), JNK MAPK inhibitor (SP600125) and p38 MAPK inhibitor (SB 203580). Taken together, dracorhodin perchlorate-induced apoptosis in HL-60 cells via up-regulation of Bax, activation of caspases and ERK/p38/JNK MAPKs.
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Affiliation(s)
- M-Y Xia
- Shenyang Pharmaceutical University, Department of Pharmacology, Shenyang, 110016, China
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36
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Abstract
We investigated the anti-apoptotic effect of orientin, from bamboo leaves (Phyllostachys nigra), on rat heart after treatment with ischemia/reperfusion (I/R), and on rat cardiomyocytes injured by hypoxia/reoxygenation (H/R). I/R injury was induced by occluding the left anterior descending coronary artery for 45 min and restoring perfusion for 240 min. Orientin (0.5, 1.0 and 2.0 mg kg(-1)) or its vehicle was injected i.v. 10 min prior to ischemia. Cultured cardiomyocytes were subjected to hypoxia for 120 min, then reoxygenated for 60 min to induce H/R. Vehicle or orientin (3, 10, 30 micromol l(-1) was added 10 min before hypoxia and reoxygenated. TUNEL assay and DNA fragmentation assay demonstrated that myocardium apoptosis was attenuated by pretreatment with orientin (0.5, 1.0 and 2.0 mg kg(-1). Flow cytometric analysis also showed that apoptosis of cardiomyocytes was reduced by pretreatment with orientin (3, 10 and 30 micromol l(-1)). In addition, results of immunohistochemistry and Western blot analysis showed that orientin increased the expression of bcl-2 and reduced Bax expression, resulting in up-regulation of the bcl-2/Bax ratio. Cytochrome c (Cyt-c) and caspase-3 expression was also reduced in myocardium and cardiomyocytes injured by I/R and H/R. These observations indicate that orientin exerts a potent cardioprotective effect on I/R- and H/R-treated myocardium and cardiomyocytes, and inhibits apoptosis by preventing activation of the mitochondrial apoptotic pathway (cytochrome c-caspase-3).
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Affiliation(s)
- X-C Fu
- Shenyang Pharmaceutical University, Department of Pharmacology, Shenyang, Liaonin 10016, China.
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37
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Chen AS, Taguchi T, Sugiura M, Wakasugi Y, Kamei A, Wang MW, Miwa I. Pyridoxal-aminoguanidine adduct is more effective than aminoguanidine in preventing neuropathy and cataract in diabetic rats. Horm Metab Res 2004; 36:183-7. [PMID: 15057673 DOI: 10.1055/s-2004-814344] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
We examined the ability of a pyridoxal-aminoguanidine adduct with both antiglycation and antioxidant activities in vitro to protect against neuropathy and cataract in streptozotocin-diabetic rats and compared the result with that of aminoguanidine. In vivo antiglycation and antioxidant activities were also compared between the adduct and aminoguanidine. Diabetic rats were given either of the compounds in their drinking water (9 mM) for 7 weeks. Neither compound affected body weight, blood glucose level or urine volume. The adduct, but not aminoguanidine, significantly improved motor nerve conduction velocity. The time to develop cataract was longer in adduct-treated rats than in untreated and aminoguanidine-treated rats. The increase in opacification of lenses in culture medium containing high glucose levels (55.5 mM) was more efficiently attenuated by the adduct than by aminoguanidine. Adduct and aminoguanidine similarly lowered glycated hemoglobin levels. The level of urinary 8-hydroxy-2'-deoxyguanosine, a marker of oxidative DNA damage, and the level of liver malondialdehyde plus 4-hydroxy-2-alkenals, a marker of tissue lipid peroxidation, both of which were elevated by diabetes, were significantly reduced by the adduct but not by aminoguanidine. These findings indicate that the pyridoxal-aminoguanidine adduct is superior to aminoguanidine in preventing diabetic neuropathy and cataracts, and we suggest that this may be at least partly due to the higher antioxidant activity of the former.
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Affiliation(s)
- A-S Chen
- Department of Pathobiochemistry, Faculty of Pharmacy, Meijo University, Nagoya, Japan
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38
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White DJ, Oglesby T, Liszewski MK, Tedja I, Hourcade D, Wang MW, Wright L, Wallwork J, Atkinson JP. Expression of human decay accelerating factor or membrane cofactor protein genes on mouse cells inhibits lysis by human complement. Transpl Int 2003; 5 Suppl 1:S648-50. [PMID: 14621899 DOI: 10.1007/978-3-642-77423-2_190] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/27/2023]
Abstract
Mouse cells expressing the human complement regulatory proteins decay accelerating factor (DAF) or membrane cofactor protein (MCP) were produced both by hybridoma technology and by transfection with the appropriate cDNAs. The expression of either or both of these products protected the mouse cell from lysis by human (though not rabbit) complement in the presence of naturally occurring human anti-mouse antibody. This effect could be abrogated by the addition of monoclonal antibody against DAF or MCP. These data suggested that the production of animals transgenic for human complement regulatory proteins should in principle be similarly protected from hyperacute xenograft rejection.
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Affiliation(s)
- D J White
- Clinical School of Medicine, University of Cambridge Addenbrooke's Hospital, Hills Rd., Cambridge CB2 2QQ
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39
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Abstract
Receptor activator of nuclear factor-kappa B ligand [RANK ligand (RANK-L)] stimulates mature osteoclasts to resorb bone, a process associated with NF-kappa B activation. RANK-L also prompts macrophages to develop the osteoclast phenotype. Although NF-kappa B is essential for osteoclast differentiation, it is not known whether RANK-L activates this transcription complex in osteoclast precursors. We report that RANK-L rapidly induces NF-kappa B activation in both authentic osteoclast precursors, namely bone marrow macrophages, and RAW 264.7 cells, a murine macrophage line also capable of RANK-L-mediated osteoclastogenesis. Supershift studies reveal the RANK-L-induced DNA binding moiety contains p50/p65, the most common NF-kappa B complex. Subcellular translocation of p50 and p65 subunits is confirmed by Western blots and immunofluorescence analysis. RANK-L activates NF-kappa B in both bone marrow macrophages and RAW 264.7 cells by serine phosphorylation of I kappa B alpha within 5 min, resulting in rapid I kappa B alpha degradation and resynthesis. Attesting to function, RANK-L treatment of RAW 264.7 cells transiently transfected with a plasmid containing NF-kappa B consensus elements linked to luciferase greatly enhances reporter activity. Our data suggest that activation of the NF-kappa B pathway is an integral component of RANK-L-induced osteoclast differentiation.
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Affiliation(s)
- S Wei
- Department of Pathology, Washington University School of Medicine, St. Louis, Missouri 63110, USA
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40
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Wang GS, Wang MW, You WD, Wang HF, Feng MF. [Fluorescent mRNA differential display technique]. Zhongguo Ying Yong Sheng Li Xue Za Zhi 2000; 16:373-6. [PMID: 11236706] [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: 02/19/2023]
Abstract
AIM To apply fluorescent mRNA differential display technique. METHODS Total RNA samples were extracted from human monocyte line U937 treated/untreated with IFN and LPS, and were used as templates in differential display PCR. The anchored primers used were labeled with the fluorescent tag. After running on 5.6% denaturing PAGE gel, differentially expressed bands were excised and recovered, and finally reamplified. RESULTS Three tested samples all showed amplified bands differed from 300 bp to 2.0 kb, the bands were bright and clear, the background was low. Both yes/no changes and upregulated/downregulated happenings were shown simultaneously. The reamplification bands were sharp and pure. CONCLUSION We have successfully practiced fluorescent differential display technique in our lab. It is a fast, safe and cost-effective method used to sereen unknown expressed genes.
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Affiliation(s)
- G S Wang
- Department of Gastroenterology, General Hospital of Chinese PLA, Beijing 100853
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41
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Lee JH, Ham YA, Choi SH, Im EO, Jung JH, Im KS, Kim DK, Xu Y, Wang MW, Kim ND. Activity of crude extract of Rubus crataegifolius roots as a potent apoptosis inducer and DNA topoisomerase I inhibitor. Arch Pharm Res 2000; 23:338-43. [PMID: 10976580 DOI: 10.1007/bf02975444] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The effects of methanol extract of Rubus crategifolius roots and its solvent fractions were investigated on the proliferation of MCF-7 human breast carcinoma cells. The methanol extract inhibited the proliferation of MCF-7 cells in a concentration dependent manner. Moreover, their methanol soluble (W-M) fraction had the greatest inhibitory effect on the growth of MCF-7 cells. To evaluate whether the W-M fraction affects on the cell cycle of MCF-7 cells, cells treated with this fraction were analyzed with flow cytometry. The W-M fraction increased G0/G1 phase after 24 h-treatment and induced apoptosis after 48 h-treatment. The hallmark of apoptosis, DNA fragmentation, also appeared by W-M fraction after 48 h-treatment. Furthermore, the methanol extract and its W-M fraction inhibited the activity of the topoisomerase I enzyme in the relaxation assay. From these results, their W-M fraction as well as methanol extract of R. crategifolius roots are necessary for further studies as a potent inhibitor of the growth of cancer cells.
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Affiliation(s)
- J H Lee
- College of Pharmacy, Pusan National University, Korea
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42
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Kishi H, Itoh M, Ohshima K, Wang MW, Watanabe G, Taya K. Regulations of gonadotropin secretion by circulating inhibin, estradiol, and progesterone in cyclic hamsters. Am J Physiol 1999; 277:E876-82. [PMID: 10567015 DOI: 10.1152/ajpendo.1999.277.5.e876] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The physiological importance of gonadal hormones in feedback control of gonadotropin secretion during the estrous cycle in golden hamsters was investigated with immunoneutralization methods. Anti-inhibin serum (inhibin-AS) treatment always induced a drastic increase in follicle-stimulating hormone (FSH) secretion and occasionally raised luteinizing hormone (LH) secretion. Anti-estradiol-17beta serum (estradiol-AS) treatment increased LH secretion typically. Although estradiol-AS elevated FSH secretion occasionally, the elevation was much less than that by inhibin-AS. Plasma FSH reached ovariectomized levels by a synergistic effect of both antisera. Elevated plasma LH with both antisera was much less pronounced than in ovariectomized animals. Plasma LH increased dramatically to the levels in the ovariectomized group when antibody against progesterone (progesterone-AB) was given together with inhibin-AS and estradiol-AS, although progesterone-monoclonal antibody alone did not alter plasma gonadotropin levels. These results indicate that in hamsters FSH secretion is mainly regulated by inhibin and LH secretion is regulated by estradiol-17beta and progesterone during the estrous cycle.
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Affiliation(s)
- H Kishi
- Department of Animal Reproduction, National Institute of Animal Industry Ministry of Agriculture, Forestry and Fisheries, Tsukuba, Ibaraki 305-0991, Japan
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43
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Pooley CL, Edwards JP, Goldman ME, Wang MW, Marschke KB, Crombie DL, Jones TK. Discovery and preliminary SAR studies of a novel, nonsteroidal progesterone receptor antagonist pharmacophore. J Med Chem 1998; 41:3461-6. [PMID: 9719599 DOI: 10.1021/jm9801915] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
A series of 6-aryl-1,2-dihydro-2,2,4-trimethylquinolines was synthesized and tested for functional activity on the human progesterone receptor isoform B (hPR-B) in mammalian (CV-1) cells. The lead compound LG001447 (1,2-dihydro-2,2, 4-trimethyl-6-phenylquinoline) was discovered via directed high throughput screening of a defined chemical library utilizing an hPR-B cotransfection assay. Electron-withdrawing substituents at the meta position of the C(6) aryl group afforded substantial improvements in hPR modulatory activity. Several analogues were able to potently block the effects of progesterone in vitro. Two compounds, 10 (LG120753) and 11 (LG120830) with potencies comparable or equal to the steroidal hPR antagonist onapristone (ZK98,299), were demonstrated to act as antiprogestins in vivo after oral administration to rodents. This is the first disclosure of orally active nonsteroidal antiprogestins.
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Affiliation(s)
- C L Pooley
- Department of Medicinal Chemistry, Ligand Pharmaceuticals Inc., San Diego, California 92121, USA.
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44
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Edwards JP, Zhi L, Pooley CL, Tegley CM, West SJ, Wang MW, Gottardis MM, Pathirana C, Schrader WT, Jones TK. Preparation, resolution, and biological evaluation of 5-aryl-1, 2-dihydro-5H-chromeno[3,4-f]quinolines: potent, orally active, nonsteroidal progesterone receptor agonists. J Med Chem 1998; 41:2779-85. [PMID: 9667968 DOI: 10.1021/jm980190c] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Two potent nonsteroidal progestins from the 5-aryl-1, 2-dihydro-5H-chromeno[3,4-f]quinoline class (LG120746 and LG120747) were selected for scale-up, resolution, and biological evaluation of the purified enantiomers. For each quinoline, the levorotatory enantiomer was determined to be the more potent agonist of the human progesterone receptor isoform B (hPR-B) (EC50 < 3 nM), but the dextrorotatory enantiomers retained significant PR modulatory activity (EC50 < 200 nM). In two in vivo rodent models of progestational activity, a pregnancy maintenance assay and a uterine wet weight assay, the two eutomers displayed potent progesterone-like effects. In a third model for progestational activity, the mammary end bud assay, these compounds were significantly less active. These studies demonstrate that certain members of this class of selective progesterone receptor modulators display encouraging and potentially useful tissue-selective progestational effects.
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Affiliation(s)
- J P Edwards
- Departments of Medicinal Chemistry and Endocrine Research, Ligand Pharmaceuticals Inc., San Diego, California 92121, USA.
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45
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Wang MW, Consoli U, Lane CM, Durett A, Lauppe MJ, Champlin R, Andreeff M, Deisseroth AB. Rescue from apoptosis in early (CD34-selected) versus late (non-CD34-selected) human hematopoietic cells by very late antigen 4- and vascular cell adhesion molecule (VCAM) 1-dependent adhesion to bone marrow stromal cells. Cell Growth Differ 1998; 9:105-12. [PMID: 9486846] [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: 02/06/2023]
Abstract
Monoclonal antibodies to very late antigen 4 (VLA-4) recognize the alpha4beta1 integrin receptor. This monoclonal antibody blocks the adhesion between early hematopoietic progenitor cells (CD34-selected cells) and stromal cells when added to cultures of these cells. Addition of the VLA-4 monoclonal antibody to cultures of stromal cells and CD34-selected cells was shown to induce apoptosis of CD34-selected cells in these CD34-selected cell/stromal cell cocultures, as measured by the terminal deoxynucleotidyltransferase-mediated dUTP-biotin nick end-labeling method. In contrast to these experiments with early hematopoietic progenitor cells (CD34+), the level of adhesion between more differentiated cells (unfractionated hematopoietic cells) and stromal cells was not significantly altered by addition of the anti-VLA-4 monoclonal antibody. Similarly, the level of apoptosis of unfractionated hematopoietic cells was not significantly increased by the addition of anti-VLA-4 monoclonal antibody to cultures of the latter cells with stromal cells. The binding of the unfractionated cells is less than that of the CD34-selected cells. Given that there is no difference between the alpha4beta1 integrin expression level of the early and late myeloid cells, there may be a difference in the functional state of the integrin between the early and late myeloid cells. We also show that CD34+-selected precursor cells proliferate at a higher rate when these cells are plated on recombinant vascular cell adhesion molecule 1 molecules. These data indicate that the alpha4beta1 integrin receptor (VLA-4) plays a central role in the apoptosis rescue function that results from the anchorage-dependent growth of the CD34-selected early hematopoietic cells on stromal cells. The data suggest that these apoptosis rescue pathways have less significance as the cells mature and become anchorage independent in their growth. These data should assist in the design of systems for the ex vivo proliferation and transduction of early hematopoietic cells for genetic therapy.
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Affiliation(s)
- M W Wang
- The Medical Oncology Section and The Comprehensive Cancer Center of The Yale University School of Medicine, New Haven, Connecticut 06520-8032, USA
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46
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Abstract
In assessing the effects of age, physical activity and ethnic identity on perception of body shape in a group of 110 elderly men, the difference was significant for perception of current and ideal body shape, with the greatest difference for the 49 physically active black elderly men.
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Affiliation(s)
- B R Abadie
- Mississippi State University, Mississippi State 39762, USA
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47
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Wu JF, Wang MW, Song LS, Liu ZF. [Absorption, tissue distribution, and excretion of zinc acexamate in rats]. Zhongguo Yao Li Xue Bao 1996; 17:375-8. [PMID: 9812729] [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: 02/09/2023]
Abstract
UNLABELLED beta = 11.6 h. The bioavailability was about 52.8%. After ig [3H]ZA (4.44 MBq.kg-1), higher radioactivities were observed in kidney, liver, and gastrointestinal tract but lower in brain, fat, and femur. CONCLUSION ZA given i.g. in rats was absorbed rapidly and distributed widely to most of the organs and tissues.
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Affiliation(s)
- J F Wu
- Norman Bethune University of Medical Sciences, Changchun, China
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48
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Hamann LG, Farmer LJ, Johnson MG, Bender SL, Mais DE, Wang MW, Crombie D, Goldman ME, Jones TK. Synthesis and biological activity of novel nonsteroidal progesterone receptor antagonists based on cyclocymopol monomethyl ether. J Med Chem 1996; 39:1778-89. [PMID: 8627601 DOI: 10.1021/jm950747d] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
A novel class of nonsteroidal progesterone receptor antagonists has been synthesized and was shown to exhibit moderate binding affinity for hPR-A, the ability to inhibit the transcriptional activity of human progesterone receptor (hPR) in cell-based assays, and anti-progestational activity in a murine model. Cyclocymopol monomethyl ether, a component of the marine alga Cymopolia barbata was weakly active in random screening against PR. Investigations into the SAR surrounding the core of this natural product lead structure resulted in improved in vitro activity. In contrast to the cross-reactivity profiles observed with known steroidal antiprogestins, compounds of the general structural class described display a high degree of selectivity for the progesterone receptor and no functional activity on the glucocorticoid receptor.
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Affiliation(s)
- L G Hamann
- Department of Endocrine Chemistry Research, Ligand Pharmaceuticals, Inc., San Diego, California 92121, USA
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49
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Abstract
A primary culture system of virgin rat mammary epithelial cells, grown in a serum-free medium, was developed as a means of assaying the efficacy of compounds with known anti-progestational properties. Cells were grown in 24-well plates on hydrated collagen gels and could be cultured for at least seven days. Experiments were routinely stopped three days after overnight attachment of cells using fibronectin (4 micrograms/ml). DNA synthesis, measured by thymidine incorporation, was significantly increased by the addition of ovine prolactin (43 nM; P < 0.01) or progesterone (0.15 microM; P < 0.05) or both (P < 0.01) to the basal medium. When added to medium containing progesterone plus prolactin (complete medium), RU486 (mifepristone) and ZK98734 (lilopristone) significantly depressed DNA synthesis in a dose-dependent manner using doses ranging from 0.015 microM to 15 microM. Maximum inhibition was achieved at 15 microM for both compounds. DNA synthesis was 24.5 +/- 2.6% (mean +/- SEM, n = 4) and 32.0 +/- 2.2% (n = 3) of that in complete medium for RU486 and ZK98734, respectively (both P < 0.001). There was no inhibitory effect of either compound in basal medium or basal medium plus prolactin, indicating the absence of toxicity and that the inhibitory effect is specific for a progesterone-mediated process.
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50
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Wang MW, Crombie DL, Hayes JS, Taussig MJ, Heap RB. Anti-idiotypic immunization against progesterone. Am J Reprod Immunol 1995; 34:386-8. [PMID: 8607945 DOI: 10.1111/j.1600-0897.1995.tb00969.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
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