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Ma LN, Wu LN, Liu SW, Zhang X, Luo X, Nawaz S, Ma ZM, Ding XC. miR-199a/b-3p inhibits HCC cell proliferation and invasion through a novel compensatory signaling pathway DJ-1\Ras\PI3K/AKT. Sci Rep 2024; 14:224. [PMID: 38168113 PMCID: PMC10762019 DOI: 10.1038/s41598-023-48760-8] [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: 06/04/2023] [Accepted: 11/30/2023] [Indexed: 01/05/2024] Open
Abstract
Several studies have reported the effects of DJ-1 gene and miR-199a/b-3p on HCC development. However, whether miR-199a/b-3p regulates HCC progression through a novel compensatory signaling pathway involving DJ-1, Ras, and PI3K/AKT remains unknown. We used (TCGA, HPA, miRWalk and Target scan) databases, cancer and para-tissue HCC patients, dual-luciferase reporter gene analysis, proteomic imprinting, qPCR, cell proliferation, scratch, transport, and flow cytometry to detect the molecular mechanism of DJ-1 and miR-199a/b-3p co-expression in HCC cell lines. Bioinformatics analysis showed that DJ-1 was highly expressed in HCC ((P < 0.001) were closely associated with tumor stage (T), portal vein vascular invasion, OS, DSS, and PFI (P < 0.05); miR-199a/b-3p was lowly expressed in HCC (P < 0.001), which was the upstream regulator of DJ-1. Spearman coefficient r = -0.113, P = 0.031; Dual luciferase gene report verified the negative targeting relationship between them P< 0.001; Western blotting demonstrated that miR-199a/b-3p could inhibit the protein expression of DJ-1, Ras and AKT(P < 0.05); The results of CCK8, cell scratch, Transwell migration and flow cytometry showed that OE + DJ-1 increased the proliferation, migration and invasion ability of HepG2 cells, and decreased the apoptosis process, and the differences were statistically significant (P < 0.05), while miR-199a/b-3p had the opposite effect (P < 0.05).
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Affiliation(s)
- Li-Na Ma
- Department of Infectious Diseases, General Hospital of Ningxia Medical University, Ningxia Sinasheng Biotechnology Co. LTD, Yinchuan, 750004, Ningxia, China
| | - Li-Na Wu
- Ningxia Medical University, Yinchuan, Ningxia, China
| | - Shuai Wei Liu
- Department of Infectious Diseases, General Hospital of Ningxia Medical University, Ningxia Sinasheng Biotechnology Co. LTD, Yinchuan, 750004, Ningxia, China
| | - Xu Zhang
- Department of Infectious Diseases, General Hospital of Ningxia Medical University, Ningxia Sinasheng Biotechnology Co. LTD, Yinchuan, 750004, Ningxia, China
| | - Xia Luo
- Department of Infectious Diseases, General Hospital of Ningxia Medical University, Ningxia Sinasheng Biotechnology Co. LTD, Yinchuan, 750004, Ningxia, China
| | - Shah Nawaz
- Ningxia Medical University, Yinchuan, Ningxia, China
| | - Zi Min Ma
- Department of Infectious Diseases, General Hospital of Ningxia Medical University, Ningxia Sinasheng Biotechnology Co. LTD, Yinchuan, 750004, Ningxia, China.
- Ningxia Sinasheng Biotechnology Co. LTD, Yinchuan, Ningxia, China.
| | - Xiang-Chun Ding
- Department of Infectious Diseases, General Hospital of Ningxia Medical University, Ningxia Sinasheng Biotechnology Co. LTD, Yinchuan, 750004, Ningxia, China.
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Zhang J, Ma ZM, Wang H, Fu YT, Ji C, Zhu M, Shen HB, Ma HX. [Association between chronic lung diseases and the risk of lung cancer in UK Biobank: observational and Mendelian randomization analyses]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:1147-1152. [PMID: 37574304 DOI: 10.3760/cma.j.cn112150-20221115-01112] [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: 08/15/2023]
Abstract
Objective: To investigate the association between chronic lung diseases and the risk of lung cancer. Methods: Using UK Biobank (UKB) survey data, 472 397 participants who had not previously been diagnosed with cancer and whose self-reported sex was consistent with their genetic sex were studied. Information on the prevalence of previous chronic lung diseases, general demographic characteristics and the prevalence of lung cancer was collected using baseline questionnaires and national health system data. The multivariate Cox proportional risk regression model was used to analyze the association between four previous chronic lung diseases (asthma, chronic obstructive pulmonary disease, idiopathic pulmonary fibrosis and interstitial pulmonary disease) and the risk of lung cancer. A total of 458 526 participants with genotype data in the observational study were selected as research objects, and the closely related and independent genetic loci with four chronic lung diseases were selected as instrumental variables, and the association between four chronic lung diseases and the risk of lung cancer was analyzed by Mendelian randomization (MR). The dose-response relationship between genetic risk score and the risk of lung cancer in different chronic lung diseases was evaluated using a restricted cubic spline function. Results: The age [M (Q1, Q3)] of the subjects was 57 (50, 63) years old, and there were 3 516 new cases of lung cancer (0.74%) during follow-up. The multivariate Cox proportional hazard regression model analysis showed that previous chronic obstructive pulmonary disease and idiopathic pulmonary fibrosis were associated with the risk of lung cancer, about 1.61 (1.49-1.75) and 2.61 (1.24-5.49), respectively. MR Studies showed that genetically predicted chronic obstructive pulmonary disease and idiopathic pulmonary fibrosis were associated with the risk of lung cancer, with HR (95%CI) of 1.10 (1.03-1.19) and 1.04 (1.01-1.08), respectively. The results of restricted cubic spline function analysis showed that the risk of lung cancer increased linearly with the increase of genetic risk scores for chronic obstructive pulmonary disease and idiopathic pulmonary fibrosis (P<0.05). Neither observational studies nor Mendelian randomization analysis found an association between previous asthma or interstitial lung disease and the risk of lung cancer (both P values>0.05). Conclusion: Chronic obstructive pulmonary disease and idiopathic pulmonary fibrosis are potential risk factors for lung cancer.
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Affiliation(s)
- J Zhang
- 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
| | - H Wang
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Y T Fu
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - C Ji
- 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
| | - H B Shen
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - H X Ma
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing 211166, 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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Liu TZ, Liu JJ, Ma ZM, Chen C, Tang XH, Zhu JM. [Application of the laparoscopic intracorporeal single-layer continuous horizontal mattress suture to close the esophagojejunostomy entry hole]. Zhonghua Wei Chang Wai Ke Za Zhi 2020; 23:315-318. [PMID: 32192314 DOI: 10.3760/cma.j.cn.441530-20190131-00025] [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: 06/10/2023]
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Yang LF, Liu X, Lv LL, Ma ZM, Feng XC, Ma TH. Dracorhodin perchlorate inhibits biofilm formation and virulence factors of Candida albicans. J Mycol Med 2018; 28:36-44. [PMID: 29477784 DOI: 10.1016/j.mycmed.2017.12.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2017] [Revised: 12/22/2017] [Accepted: 12/27/2017] [Indexed: 12/14/2022]
Abstract
OBJECTIVE The aim of this study was to investigate the antifungal activity of dracorhodin perchlorate (DP) against planktonic growth and virulence factors of Candida albicans. METHODS Microdilution method based on CLSI-M27-A3 was used to test the antifungal susceptibility of DP. The activity of DP against biofilm formation and development of C. albicans was quantified by XTT assay and visualized by confocal laser scanning microscope. The effect of DP on the morphological transition of C. albicans induced by four kinds of hyphal-inducing media at 37°C for 4hours was observed under microscope. The rescue experiment by adding exogenous cAMP analog was performed to investigate the involvement of cAMP in the yeast to hyphal transition and biofilm formation of C. albicans. Egg yolk emulsion agar was used to determine the inhibition of DP on the phospholipase production of C. albicans. Human JEG-3 and HUVEC cell lines, as well as the nematode Caenorhabditis elegans was used to assess the toxicity of DP. RESULTS The minimum inhibitory concentration (MIC) of DP is 64μM while the antifungal activity was fungistatic. As low as a concentration at 16μM, DP could inhibit the yeast to hyphal transition in liquid RPMI-1640, Spider, GlcNAc and 10% FBS-containing Sabouroud Dextrose medium, as well as on the solid spider agar. Exogenous cAMP analog could rescue part of biofilm viability of C. albicans. DP could inhibit the production of phospholipase. The toxicity of DP against human cells and C. elegans is low. CONCLUSION DP could inhibit the planktonic growth and virulent factors in multiple stages, such as yeast to hyphal transition, adhesion, biofilm formation and production of phospholipase of C. albicans.
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Affiliation(s)
- L F Yang
- Jilin Provincial Key Laboratory on Molecular and Chemical Genetics, The Second Hospital of Jilin University, Changchun 130024, China.
| | - X Liu
- Eye Center, The Second Hospital of Jilin University, Changchun 130024, China.
| | - L L Lv
- Department of Oncology and Hematology, The Second Hospital of Jilin University, Changchun 130041, China.
| | - Z M Ma
- Department of Gastrointestinal Nutrition and Hernia Surgery, The Second Hospital of Jilin University Changchun 130041, China.
| | - X C Feng
- College of Life Science, Northeast Normal University, Changchun 130041, China.
| | - T H Ma
- Jilin Provincial Key Laboratory on Molecular and Chemical Genetics, The Second Hospital of Jilin University, Changchun 130024, China.
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Yu XF, Wang WB, Teng XD, Wang HY, Chen X, Wang HH, Ma ZM, Fahey TJ, Teng LS. Clinicopathological and prognostic analysis of follicular thyroid carcinoma in a single institute over a 15-year period. Eur J Surg Oncol 2014; 40:869-74. [PMID: 24613740 DOI: 10.1016/j.ejso.2014.01.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Revised: 12/30/2013] [Accepted: 01/19/2014] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND This study was to evaluate the clinicopathological and prognostic features of follicular thyroid carcinoma (FTC) in our institute over a 15-year period. METHODS The clinical features, management and outcome of 134 consecutive patients were analyzed according to the time of diagnosis: Group I (1997-2001), Group II (2002-2006), and Group III (2007-2011). RESULTS As time advanced, the ratio of FTC to papillary thyroid carcinoma decreased from 8.7% in group I to 4.3% in group III (p = 0.000). The percentage of patients undergoing total thyroidectomy seemed to be more commonly used in the later periods - from 10.5% in group I to 21.8% in group II and 18.9% in group III. The median diameter of tumors in group I was 4.2 cm and it showed a sharp decrease to 2.8 cm in group II and 2.9 cm in group III respectively. There was a trend towards a higher stage in patients from Group I vs. patients from Groups II and III (stage IV, 15.8% vs. 2.2% and 4.3%, p = 0.072). The outcome was improved in terms of disease-free survival (DFS). The 3-year DFS rate improved from 77.8% in group I to 93.7% in group II and 100% in group III (p = 0.008). CONCLUSIONS The clinical features, management and outcome of FTC patients changed over 15-year period. Patients diagnosed after 2001 had a better prognosis. This improvement was probably related to earlier diagnosis with smaller tumor size and presentation at earlier tumor stage.
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Affiliation(s)
- X F Yu
- Cancer Center, First Affiliated Hospital, Zhejiang University School of Medicine, 79th Qingchun Road, Hangzhou 310003, China
| | - W B Wang
- Cancer Center, First Affiliated Hospital, Zhejiang University School of Medicine, 79th Qingchun Road, Hangzhou 310003, China
| | - X D Teng
- Department of Pathology, First Affiliated Hospital, Zhejiang University School of Medicine, 79th Qingchun Road, Hangzhou 310003, China
| | - H Y Wang
- Cancer Center, First Affiliated Hospital, Zhejiang University School of Medicine, 79th Qingchun Road, Hangzhou 310003, China
| | - X Chen
- Department of General Surgery, Women's Hospital, Zhejiang University School of Medicine, 1st Xueshi Road, Hangzhou 310006, China
| | - H H Wang
- Cancer Center, First Affiliated Hospital, Zhejiang University School of Medicine, 79th Qingchun Road, Hangzhou 310003, China
| | - Z M Ma
- Cancer Center, First Affiliated Hospital, Zhejiang University School of Medicine, 79th Qingchun Road, Hangzhou 310003, China
| | - T J Fahey
- Department of Surgery, New York Presbyterian Hospital, and Weill Medical College of Cornell University, 525 East 68th Street, Room F-2024, New York 10065, NY, USA
| | - L S Teng
- Cancer Center, First Affiliated Hospital, Zhejiang University School of Medicine, 79th Qingchun Road, Hangzhou 310003, China.
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Ren J, Wang L, Chen Z, Ma ZM, Zhu HG, Yang DL, Li XY, Wang BI, Fei J, Wang ZG, Wen YM. Gene expression profile of transgenic mouse kidney reveals pathogenesis of hepatitis B virus associated nephropathy. J Med Virol 2006; 78:551-60. [PMID: 16555286 DOI: 10.1002/jmv.20575] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Hepatitis B virus (HBV)-associated nephritis has been reported worldwide. Immune complex deposition has been accepted as its pathogenesis, although the association between the presence of local HBV DNA and viral antigen and the development of nephritis remains controversial. To understand better the roles played by HBV protein expression in the kidney, the global gene expression profile was studied in the kidney tissue of a lineage of HBV transgenic mouse (#59). The mice expressed HBsAg in serum, and HBsAg and HBcAg in liver and kidney, but without virus replication. Full-length HBV genome (adr subtype, C genotype) isolated from a chronic HBV carrier was used to establish the transgenic mice #59. Similarly manipulated mice that did not express HBV viral antigens served as controls. Southern blotting, hybridization with HBV probe, and immuno-histochemical staining were used to study HBV gene expression. mRNA extracted from the kidney tissue was analyzed using Affymetrix microarrays. HBsAg and HBcAg were located mainly in the cytoplasm of tubular epithelium. Altogether 520 genes were "up-regulated" more than twofold and 76 genes "down-regulated" more than twofold in the kidney. The complement activation, blood coagulation, and acute-phase response genes were markedly "up-regulated". Compared to the controls, the level of serum C3 protein was decreased in #59 mice, while the level of C3 protein from kidney extract was increased. Results indicate that expression of HBsAg and HBcAg in tubular epithelial cells of the kidney per se can up-regulate complement-mediated inflammatory gene pathways, in addition to immune complex formation.
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Affiliation(s)
- J Ren
- Key laboratory of Medical Molecular Virology, Institute of Medical Microbiology, Shanghai Medical College, Fudan University, Shanghai, China
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Wei R, Ma ZM, Yuan J. [Therapeutic effect of gamma-ray stereotactic radiotherapy on brain metastases]. Hunan Yi Ke Da Xue Xue Bao 2001; 26:451-2. [PMID: 12536499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To evaluate the therapeutic effects of gamma-ray stereotactic radiotherapy (SRT) plus whole brain irradiation and radiotherapy alone in brain metastases. METHODS Forty-three patients with brain metastases were treated by SRT plus whole brain irradiation and 50 patients were treated by routine radiotherapy. SRT was given with the dosage of 15-27 Gy, and whole brain irradiation was given with the dosage of 30-40 Gy. RESULTS One-year survival rate, median survival period, and tumor local control rate in SRT plus whole brain irradiation group were higher or longer than those in the routine radiotherapy group (P < 0.01). Mortality in SRT plus whole brain irradiation group was lower than that in the routine radiotherapy group (P < 0.05). CONCLUSION The therapeutic effect of SRT plus whole brain irradiation on brain metastasis of cancer is superior to the routine radiotherapy.
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Affiliation(s)
- R Wei
- Department of Radiation Oncology, Xiangya Hospital, Central South University, Changsha 410008, China
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Wang B, Liu GH, Ma ZM. [Early operation with anterior screw-plate system for cervical spine fracture and dislocation]. Hunan Yi Ke Da Xue Xue Bao 2001; 26:480-2. [PMID: 12536510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To evaluate the function of the cervical spine anterior screw-plate system in the early operation of cervical spine fracture and dislocation. METHODS One hundred and fifteen patients with fracture and dislocation of lower cervical spine treated by cervical anterior decompression, reduction, iliac crest autograft, fixed with cervical anterior locking plate (AO, spine-tech, Orion). RESULTS All the cases were free from complication except one patient was complicated with infection of the surgical wound and another one with a transient dysfunction of recurrent laryngeal nerve. Symptom of patients were significantly improved in postoperation and no hardware failure. CONCLUSIONS Early anterior decompression operation for cervical fracture and dislocation can achieve satisfactory clinical outcomes, anterior cervical vertebral screw-plate system is safety, simplicity, rigidity and can provide good conditions for early anterior cervical spine operation.
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Affiliation(s)
- B Wang
- Department of Spine Surgery, Second Xinagya Hospital, Central South University, Changsha 410011, China
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Ma ZM, Jiang B, Ma JR. [Alterations of glial fibrillary acidic protein in rat brain after gamma knife irradiation]. Hunan Yi Ke Da Xue Xue Bao 2001; 26:309-12. [PMID: 12536720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To study glial fibrillary acidic protein (GFAP) immunoreactivity in different time and water content of the rat brain treated with gamma knife radiotherapy and to understand the alteration course of the brain lesion after a single high dose radiosurgical treatment. METHODS In the brains of the normal rats were irradiated by gamma knife with 160 Gy-high dose. The irradiated rats were then killed on the 1st day, 7th day, 14th day, and 28th day after radiotherapy, respectively. The positive cells of GFAP in brain tissue were detected by immunostaining; the water content of the brain tissue was measured by microgravimetry. The histological study of the irradiated brain tissue was performed with H.E. and examined under light microscope. RESULTS The numbers of GFAP-positive astrocytes began to increase on the 1st day after gamma knife irradiation. It was enlarged markedly in the number and size of GFAP-stained astrocytes over the irradiated areas. Up to the 28th day, circumscribed necrosis foci (4 mm in diameter) was seen in the central area of the target. In the brain tissue around the necrosis, GFAP-positive astrocytes significantly increased (P < 0.01, compared with the control group). The swelling of cells in irradiated region was observed on the 1st day; after irradiation endothelial cells degenerated and red blood cells escaped from blood vessel on the 7th day; leakage of Evans blue dye was observed in the target region on the 14th day. There was a significant decrease of specific gravity in the irradiated brain tissue the 14th and 28th day after irradiation. CONCLUSION The results suggest that GFAP can be used as a marker for the radiation-induced brain injury. The brain edema and disruption of brain-blood barrier can be occurred during the acute stage after irradiation.
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Affiliation(s)
- Z M Ma
- Neurological Institute, Xiangya Hospital, Central South University, Changsha 410008, China
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Ma ZM, Xie YZ, Yang Y. [The study on the differential display of gene in rat's cerebral cortex during hypoxia]. Zhongguo Ying Yong Sheng Li Xue Za Zhi 2001; 17:132-191. [PMID: 21171398] [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: 05/30/2023]
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Lu C, Lü GH, Ma ZM. [Analysis of complication in the spinal pedicle screw internal fixation]. Hunan Yi Ke Da Xue Xue Bao 2000; 25:51-2. [PMID: 12212247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
Abstract
In 1990-1998, five hundred and twenty patients treated with spinal pedicle screw internal fixation were analyzed. The main operative complication was screw misplacement(7.1%), and others such as screw bend and extra-long screw were less seen. The postoperative complications included screw breakage (13.3%) and backache(14.2%). Recently, by making use of RF screw system and X-ray monitor, the complications were significantly decreased.
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Affiliation(s)
- C Lu
- Department of Orthopaedics, Second Affiliated Hospital, Hunan Medical University, Changsha 410011
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Li BL, Li XL, Duan ZJ, Lee O, Lin S, Ma ZM, Chang CC, Yang XY, Park JP, Mohandas TK, Noll W, Chan L, Chang TY. Human acyl-CoA:cholesterol acyltransferase-1 (ACAT-1) gene organization and evidence that the 4.3-kilobase ACAT-1 mRNA is produced from two different chromosomes. J Biol Chem 1999; 274:11060-71. [PMID: 10196189 DOI: 10.1074/jbc.274.16.11060] [Citation(s) in RCA: 98] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Acyl-CoA:cholesterol acyltransferase (ACAT) plays important roles in cellular cholesterol homeostasis. Four human ACAT-1 mRNAs (7.0, 4.3, 3.6, and 2.8 kilobases (kb)) share the same short 5'-untranslated region (exon 1) and coding sequence (exons 2-15). The 4.3-kb mRNA contains an additional 5'-untranslated region (1289 nucleotides in length; exons Xa and Xb) immediately upstream from the exon 1 sequence. One ACAT-1 genomic DNA insert covers exons 1-16 and a promoter (the P1 promoter). A separate insert covers exon Xa (1277 base pairs) and a different promoter (the P7 promoter). Gene mapping shows that exons 1-16 and the P1 promoter sequences are located in chromosome 1, while exon Xa and the P7 promoter sequence are located in chromosome 7. RNase protection assays demonstrate three different protected fragments, corresponding to the 4.3-kb mRNA and the two other mRNAs transcribed from the two promoters. These results are consistent with the interpretation that the 4.3-kb mRNA is produced from two different chromosomes, by a novel RNA recombination mechanism involving trans-splicing of two discontinuous precursor RNAs.
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Affiliation(s)
- B L Li
- Department of Biochemistry, Dartmouth Medical School, Hanover, New Hampshire 03755, USA
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Ma ZM, Xie YZ, Lu YD. [The progress on the modulation of hypoxia responsive gene (HRG)]. Sheng Li Ke Xue Jin Zhan 1998; 29:352-4. [PMID: 12501668] [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: 02/28/2023]
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Ma ZM, Kong YY, Wang Y, Wen YM. Recombinant vaccinia virus expressing Pre-S/S protein of duck hepatitis B virus and its preliminary use for treatment of persistent infection. Acta Virol 1996; 40:311-4. [PMID: 9171461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The envelope (Pre-S/S) gene of duck hepatitis B virus (DHBV) was amplified by polymerase chain reaction (PCR) and cloned into plasmid pGJP5, under the control of vaccinia virus promoter P(7.5). By recombination in cell culture, and screened in human TK- 143 cells in the presence of 5-bromouracil deoxyriboside (5-BUdR), a recombinant vaccinia virus, bearing the envelope gene of DHBV (pGDHBV-5) which could replicate in cell cultures was constructed. DHBV surface antigen (DHBsAg) was detected in pGDHBV-5-infected cell lysate by dot enzyme immunoassay (EIA). After multiple-site intradermal injections of pGDHBV-5, DHBsAg could be detected in the serum of immunized adult ducks. This indicated that the recombinant virus replicated and expresed DHBsAg in ducks. The recombinant virus was used as a therapeutic vaccine to immunize persistently DHBV-infected ducks. After immunization, a transient significant decrease of serum DHBsAg was observed.
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Affiliation(s)
- Z M Ma
- Department of Molecular Virology, Shanghai Medical University, P.R. China
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Ma ZM, Feng YZ, Zhou XR. [Rational surgical approaches to the treatment of small primary liver cancer, and the prevention of postoperative recurrence]. Zhonghua Wai Ke Za Zhi 1994; 32:31-4. [PMID: 8045198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
From Sep. 1985 to Dec. 1990, surgical treatment was performed in 27 patients with small primary liver cancer (SPLC, < or = 5cm in diameter). Of them, segmentectomy was done in 23 cases and radical local resection in 4 cases with recurrence rate of 66.77% (18/27). Non recurrent lesions were located in the incisal margin. In this group re-resection rate was 55.6% (10/18). (1) Early detection and treatment of recurrent lesions remain a mainstay of prolonging survival. (2) Serum Alpha-fetoprotein (AFP), ultrasonography and X-ray chest film were basic follow-up methods for subclinical recurrence of SPLC. For re-operation cases, digital subtract angiography (DSA) are useful in identifying subclinical lesions. (3) For recurrent liver cancer local hepatectomy was a reasonable approach. (4) For SPLC, radical segmentectomy or radical local resection with a safe margin of 1 to 2cm was the authors' choice.
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Affiliation(s)
- Z M Ma
- First Affiliated Hospital, Zhejiang Medical University, Hangzhou
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Chen L, Dai ZR, Ma ZM, Zheng XY, Chen C. [Studies on residual antimalarial activity of tripynadine in mice and monkeys]. Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi 1993; 11:190-194. [PMID: 8168241] [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: 05/22/2023]
Abstract
This paper reports the experiments in which tripynadine free base at a dose 4.5 times that of ED50 was given to mice by intragastric administration. On the 20th day following the administration the mice were inoculated with 1 x 10(7) RBC infected with Plasmodium berghei ANKA strain. The infection rate was zero, implying that all mice had acquired protection. Although the residual activity time of tripynadine phosphate was longer than that of tripynadine free base or piperaquine phosphate, but tripynadine phosphate caused vomiting in monkeys during the medication. The residual antimalarial activity of tripynadine hydroxynaphthoate was less than that of tripynadine phosphate or tripynadine free base. A total dose of 200 mg/kg of tripynadine free base ensured residual antimalarial activity against P. cynomolgi bastianellii for 20 days. However, the residual activity decreased evidently when the total dose was reduced to 100 mg/kg. In short, it seems that the residual antimalarial activity of tripynadine free base is slightly less than that of piperaquine in monkeys.
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Affiliation(s)
- L Chen
- Laboratory for Antimalarial Drug Research, Second Military Medical University, Shanghai
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Li JY, Wan SD, Ma ZM, Zhao YH, Zhou GP. A new mutant erythrocyte pyrimidine 5'-nucleotidase characterized by fast electrophoretic mobility in a Chinese boy with chronic hemolytic anemia. Clin Chim Acta 1991; 200:43-7. [PMID: 1934510 DOI: 10.1016/0009-8981(91)90332-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- J Y Li
- Department of Hematology, Changhai Hospital, Shanghai, China
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Ma ZM, Grubb JH, Sly WS. Cloning, sequencing, and functional characterization of the murine 46-kDa mannose 6-phosphate receptor. J Biol Chem 1991; 266:10589-95. [PMID: 1645352] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
We have cloned and sequenced the 2175-nucleotide, full-length cDNA for the mouse 46-kDa Man 6-P receptor (46MPR) and studied its functional properties in stably transfected mouse L cells which do not express the insulin-like growth factor-II receptor/mannose 6-phosphate receptor (IGF-IIR/MPR). The 278-amino acid sequence deduced from the cDNA for the murine 46MPR shows 19 amino acid differences from that of the human 46MPR, none of which are found in the 68-amino acid cytoplasmic tail. Binding of ligand to the murine 46MPR in permeabilized cells showed a pH optimum of 6.5, was completely inhibited by Man 6-P, and was stimulated by divalent cations. Mn2+ was more effective than Ca2+ or Mg2+. Endocytosis was demonstrated at pH 6.5 and was stimulated 4-7-fold by Mn2+. In its responsiveness to divalent cations and its preference for Mn2+, the murine 46MPR resembled the bovine 46MPR more than the human 46MPR. It was even less efficient than the human receptor in its ability to mediate endocytosis in transfected murine cells. It was also no more efficient than the human 46MPR in correcting the sorting defect of IGF-IIR/MPR-deficient mouse L cells. We conclude that the previously observed relative inefficiency of the human 46MPR in sorting enzymes to lysosomes in murine cells is a property of the 46MPR itself and not a manifestation of studying its expression in a heterologous cell line.
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Affiliation(s)
- Z M Ma
- Edward A. Doisy Department of Biochemistry and Molecular Biology, St. Louis University School of Medicine, Missouri 63104
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Ma ZM. [Digital subtraction hepatic arteriography and venography]. Zhonghua Wai Ke Za Zhi 1989; 27:528-30, 573-4. [PMID: 2560963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
DSA and venography were performed in 13 hepatic carcinomas of central type for the location of the tumor. The procedure was found to clearly show the mass in its relation to hepatic veins. Preoperative demonstration of the landmarks of the hepatic lobes and segments was helpful to accomplish hepatic lobectomy or segmentectomy. The authors elaborated the technic and points for attention involved in this modality. The value of the hepatic arteriography and Venography in clinical application is discussed and indications are put forward.
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Ma ZM, Zhang XL, Feng YZ. [Value of digital subtraction hepatic arteriography in the diagnosis of liver cancer]. Zhonghua Wai Ke Za Zhi 1987; 25:505-7, 555, 45. [PMID: 3328672] [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: 01/05/2023]
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Zhang XP, Chen GD, Dai ZR, Ma ZM. [Studies on antimalarials. XII. Synthesis and antimalarial activities of some derivatives of 2,4-disubstituted-6-substituted amino quinazolines]. Yao Xue Xue Bao 1984; 19:792-5. [PMID: 6544033] [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: 04/05/2023]
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Ma ZM. Manipulative treatment of subluxation of the sacro-iliac joint. J TRADIT CHIN MED 1984; 4:33-4. [PMID: 6565881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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Zheng KQ, Shen DF, Ni ZG, Chen L, Dai ZR, Ma ZM. [Studies on antimalarials. X. Synthesis and antimalarial activity of derivatives of 2,4-diamino-6-N1,N2-disubstituted hydrazinoquinazoline]. Yao Xue Xue Bao 1983; 18:673-7. [PMID: 6677053] [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: 01/21/2023]
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Chen L, Dai ZR, Ma ZM. [Studies on antimalarial drug. II. The causal prophylactic activity of antimalarial in animal model. Part I. Plasmodium yoelii-Anopheles stephensi system (author's transl)]. Yao Xue Xue Bao 1981; 16:260-6. [PMID: 7257809] [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: 01/24/2023]
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