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Ba Y, Sun L, Zuo J, Yu SY, Yang S, Ding LM, Feng ZC, Li ZY, Zhou GY, Yu FF. Association of oxidative stress and Kashin-Beck disease integrated Meta and Bioinformatics analysis. Osteoarthritis Cartilage 2022; 30:1606-1615. [PMID: 36096467 DOI: 10.1016/j.joca.2022.08.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 08/16/2022] [Accepted: 08/30/2022] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To explore the association between oxidative stress (OS) and Kashin-Beck disease (KBD). METHODS Terms associated with "KBD" and "OS" were searched in the six different databases up to October 2021. Stata 14.0 was used to pool the means and standard deviations using random-effect or fixed-effect model. The differentially expressed genes in the articular chondrocytes of KBD were identified, the OS related genes were identified by blasting with the GeneCards. The KEGG pathway and gene ontology enrichment analysis was conducted using STRING. RESULTS The pooled SMD and 95% CI showed hair selenium (-4.59; -6.99, -2.19), blood selenium (-1.65; -2.86, -0.44) and glutathione peroxidases (-4.15; -6.97, -1.33) levels were decreased in KBD, whereas the malondialdehyde (1.12; 0.60, 1.64), nitric oxide (2.29; 1.31, 3.27), nitric oxide synthase (1.07; 0.81, 1.33) and inducible nitric oxide synthase (1.69; 0.62, 2.77) were increased compared with external controls. Meanwhile, hair selenium (-2.71; -5.32, -0.10) and glutathione peroxidases (-1.00; -1.78, -0.22) in KBD were decreased, whereas the malondialdehyde (1.42; 1.04, 1.80), nitric oxide (3.08; 1.93, 4.22) and inducible nitric oxide synthase (0.81; 0.00, 1.61) were elevated compared with internal controls. Enrichment analysis revealed apoptosis was significantly correlated with KBD. The significant biological processes revealed OS induced the release of cytochrome c from mitochondria. The cellular component of OS located in the mitochondrial outer membrane. CONCLUSIONS The OS levels in KBD were significantly increased because of selenium deficiency, OS mainly occurred in mitochondrial outer membrane, released of cytochrome c from mitochondria, and induced apoptotic signaling pathway.
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Affiliation(s)
- Y Ba
- Department of Environmental Health, School of Public Health, Zhengzhou University, Environment and Health Innovation Team, Zhengzhou, Henan, 450001, PR China.
| | - L Sun
- Department of Environmental Health, School of Public Health, Zhengzhou University, Environment and Health Innovation Team, Zhengzhou, Henan, 450001, PR China.
| | - J Zuo
- Department of Environmental Health, School of Public Health, Zhengzhou University, Environment and Health Innovation Team, Zhengzhou, Henan, 450001, PR China.
| | - S-Y Yu
- Department of Environmental Health, School of Public Health, Zhengzhou University, Environment and Health Innovation Team, Zhengzhou, Henan, 450001, PR China.
| | - S Yang
- Department of Environmental Health, School of Public Health, Zhengzhou University, Environment and Health Innovation Team, Zhengzhou, Henan, 450001, PR China.
| | - L-M Ding
- Department of Environmental Health, School of Public Health, Zhengzhou University, Environment and Health Innovation Team, Zhengzhou, Henan, 450001, PR China.
| | - Z-C Feng
- Department of Environmental Health, School of Public Health, Zhengzhou University, Environment and Health Innovation Team, Zhengzhou, Henan, 450001, PR China.
| | - Z-Y Li
- Department of Environmental Health, School of Public Health, Zhengzhou University, Environment and Health Innovation Team, Zhengzhou, Henan, 450001, PR China.
| | - G-Y Zhou
- Department of Environmental Health, School of Public Health, Zhengzhou University, Environment and Health Innovation Team, Zhengzhou, Henan, 450001, PR China.
| | - F-F Yu
- Department of Environmental Health, School of Public Health, Zhengzhou University, Environment and Health Innovation Team, Zhengzhou, Henan, 450001, PR China.
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Xie LX, Zhong Y, Chen YY, Zhou GY, Yang C. Effective adsorption of antimony (V) from contaminated water by a novel composite manganese oxide/oxyhydroxide as an adsorbent. Water Sci Technol 2022; 85:2463-2478. [PMID: 35576248 DOI: 10.2166/wst.2022.128] [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: 06/15/2023]
Abstract
To obtain an efficient and low-cost adsorbent for the Sb(V) removal in Sb(V)-contaminated water, a novel composite manganese oxide/oxyhydroxide (CMO) was synthesized by a simple hydrothermal synthesis method. The synthesized adsorbent was characterized via scanning electron microscopy, X-ray diffraction, transmission electron microscopy, Brunauer-Emmett-Teller surface area, Fourier transform infrared, and X-ray photoelectron spectroscopy analyses. The results revealed that the as-prepared CMO adsorbent possessed a porous structure consisting of Mn3O4 nanoparticles and MnOOH nanorods. Batch experiments showed that the adsorption behaviours were well fitted by the Langmuir isotherm and the pseudo-second-order kinetic model, reaching the maximum adsorption capacity of 119.63 mg/g at 25 °C. The application of CMO adsorbent showed that the Sb(V) removal efficiency in 6.24 L Sb(V)-containing water with a concentration of 3.6 mg/L was more than 90%. The reusability of CMO adsorbent demonstrated that the Sb(V) removal efficiency was still more than 80% even after five times of regeneration. The adsorption mechanism for Sb(V) can be described as ligand exchange between hydroxyl groups on the adsorbent surface and hydroxyl groups in Sb(OH)6- molecules by forming inner-sphere complexes. Those results suggested that the CMO adsorbent can be considered as a potential adsorbent to remove Sb(V) from contaminated water.
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Affiliation(s)
- L X Xie
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China
| | - Y Zhong
- Key Laboratory of Water Pollution Control Technology, Hunan Research Academy of Environmental Sciences, Changsha 410004, China E-mail:
| | - Y Y Chen
- Key Laboratory of Water Pollution Control Technology, Hunan Research Academy of Environmental Sciences, Changsha 410004, China E-mail:
| | - G Y Zhou
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China
| | - C Yang
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China
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Sun RJ, Ma J, Duan LZ, Zhu JY, Yu SC, Huang H, Zhang YL, Zhou GY, Wang CJ, Ba Y. [Threshold effects of body mass index on the bone mineral density of Chinese rural women in fluorosis area]. Zhonghua Yu Fang Yi Xue Za Zhi 2020; 54:1295-1299. [PMID: 33147932 DOI: 10.3760/cma.j.cn112150-20200825-01150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
To explore the threshold effect of body mass index (BMI) on bone mineral density (BMD) in Chinese women living in the fluorosis area, we conducted a cross-sectional study and recruited 722 women in rural areas in Henan Province, China. After detection and analyses, we found that compared with the normal BMI group, the risk of osteoporosis in the overweight and obese groups were reduced by 32% and 69%, respectively. Threshold effect analysis showed that BMD was positively correlated with BMI when BMI was 16.8-31.2 kg/m2; while when BMI was greater than 31.2 kg/m2, the correlation reached saturation. The correlation observed between low-to-moderate fluoride exposure and BMD in rural women was not significant.
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Affiliation(s)
- R J Sun
- Department of Environmental Health, Environment and Health Innovation Team, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - J Ma
- Department of Endemic Diseases, Kaifeng Municipal Center for Disease Control and Prevention, Kaifeng 475000, China
| | - L Z Duan
- Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou 450001, China
| | - J Y Zhu
- Department of Environmental Health, Environment and Health Innovation Team, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - S C Yu
- Department of Nutrition and Food Hygiene, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - H Huang
- Department of Environmental Health, Environment and Health Innovation Team, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Y L Zhang
- Department of Environmental Health, Environment and Health Innovation Team, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - G Y Zhou
- Department of Environmental Health, Environment and Health Innovation Team, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - C J Wang
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Y Ba
- Department of Environmental Health, Environment and Health Innovation Team, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
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Khanna R, Zhou GY, Afif W. Comparative Efficacy Trials in Inflammatory Bowel Disease. Gastroenterology 2020; 159:1182-1184. [PMID: 32681920 DOI: 10.1053/j.gastro.2020.07.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Indexed: 12/02/2022]
Affiliation(s)
- Reena Khanna
- Department of Medicine, Division of Gastroenterology, University of Western Ontario, London, Ontario, Canada
| | - G Y Zhou
- Department of Epidemiology and Statistics, University of Western Ontario, London, Ontario, Canada
| | - Waqqas Afif
- Department of Medicine, Division of Gastroenterology, McGill University, Montreal, Quebec, Canada
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Yang KC, Liu LM, Li P, Dong LX, Zhou GY, Tian ZY, Luo C, Xia T, Wang AG, Zhang S. [The role of abnormal mitochondrial fusion and fission in PBDE-47-induced change in mitochondrial mass in PC12 cells]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2019; 37:1-6. [PMID: 30884580 DOI: 10.3760/cma.j.issn.1001-9391.2019.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effect of 2, 2', 4, 4'-tetrabromodiphenyl ether (PBDE-47) on the mitochondrial mass in rat adrenal pheochromocytoma (PC12) cells and the potential mechanisms. Methods: Highly differentiated PC12 cells were divided into control, 1, 10 or 20 μmol/L PBDE-47-treated groups and cultured for 24 h. Transmission electron microscopy was employed to observe the changes in mitochondrial morphology and quantity in PC12 cells. Flow cytometry was used to measure the fluorescence intensity of Nonyl Acridine Orange (NAO) , a fluorescent indicator of mitochondrial membrane cardiolipin, to reflect mitochondria mass. Western blotting was used to determine the expression levels of Mitofusion 1 (Mfn1) and Fission 1 (Fis1) proteins. To further explore the role of abnormal mitochondrial fusion and fission in PBDE-47-induced mitochondrial mass changes, PC12 cells were divided into control group, 5 μmol/L M1 treatment group, 20 μmol/L PBDE-47 treatment group and 5 μmol/L M1+20 μmol/L PBDE-47 combined treatment group and cultured for 24 h, then the fluorescence intensity of NAO and expression levels of Mfn1 and Fis1 proteins were detected. Results: The control group showed numerous mitochondria with normal morphology, while the number of mitochondria decreased after PBDE-47 treatment. Especially, the disappeared cristae, swelling and vacuoles of mitochondria and decreased fluorescence intensity of NAO (P<0.05) were observed in 10 and 20 μmol/L PBDE-47-treated groups. Meanwhile, the expression levels of Mfn1 and Fis1 proteins in the 10 and 20 μmol/L PBDE-47-treated groups were significantly decreased compared with control group (P<0.05) . However, 5 μmol/L M1 co-treatment with 20 μmol/L PBDE-47 significantly increased the levels of Mfn1 and Fis1 proteins and fluorescence intensity of NAO compared with the 20 μmol/L PBDE-47 group (P<0.05) . Conclusion: PBDE-47 can inhibit the mitochondrial fusion and fission process, thus leading to damage of mitochondria mass in PC12 cells.
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Affiliation(s)
- K C Yang
- MOE Key Lab of Environment and Health, Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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Liu ZY, Zhou GY, Kakudo K, Lam AKY. [Update on 2017 Who classification of tumors of thyroid gland]. Zhonghua Bing Li Xue Za Zhi 2018; 47:302-306. [PMID: 29690675 DOI: 10.3760/cma.j.issn.0529-5807.2018.04.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
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Ding B, Yue ZY, Chen XY, Liu LL, Qi Y, Geng SQ, Zhou GY. [Granulomatous slack skin associated with ALK-negative anaplastic large cell lymphoma]. Zhonghua Bing Li Xue Za Zhi 2016; 45:875-876. [PMID: 28056306 DOI: 10.3760/cma.j.issn.0529-5807.2016.12.013] [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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Li J, Pan CW, Zhou GY, Zhuge L, Fang PP, Jin LX, Lin W, Lin XZ, Zheng Y. Studies on the interference of ganciclovir to HCV liver fibrosis. Eur Rev Med Pharmacol Sci 2016; 20:4343-4347. [PMID: 27831637] [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: 06/06/2023]
Abstract
OBJECTIVE To investigate the significance of the combined treatment with ganciclovir and interferon for patients with hepatitis C (HCV) liver fibrosis. PATIENTS AND METHODS We retrospectively summarize 86 patients with hepatitis C treated in our hospital from October 2013 to October 2015. 49 cases, considered as control group, received combined treatment with α-interferon and ribavirin; 37 cases, considered as observation group, received combined treatment with ganciclovir and interferon. The changes of liver fibrosis, viral replication and liver function of both groups were compared for two weeks and six months. RESULTS The levels of sera hyaluronic acid (HA), laminin (LN), type IV collagen (IVC) and type III procollagen (PIII NP) of both groups were reduced after treatment, and the observation group improved more significantly (p <0.05). Compared to the rate of antigen-positive after treatment and HCV copy number before and after treatment, the differences were not statistically significant (p > 0.05). The level of alanine aminotransferase (ALT) of the control group increased after treatment, compared with that before. This was done along with the decrease of the level of albumin. By contrast, the level of ALT in the observation group was reduced and the level of albumin was increased compared with that before (p < 0.05). CONCLUSIONS Ganciclovir combined with interferon may further reduce the fibrosis process of patients with hepatitis C, and may improve liver function. The effect of antiviral was similar as ganciclovir combined with Interferon was comparatively good applied, safety and effectiveness.
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Affiliation(s)
- J Li
- Department of Infectious Disease, The Second Affiliated Hospital and Yuying Children' Hospital of Wenzhou Medical University, Wenzhou City, Zhejiang Province, China.
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Liu ZY, Zhou GY, Kennichi K. [Biologic behavior of thyroid carcinoma in indeterminate category of fine needle aspirates]. Zhonghua Bing Li Xue Za Zhi 2016; 45:423-6. [PMID: 27256058 DOI: 10.3760/cma.j.issn.0529-5807.2016.06.019] [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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Zheng YB, Zhao Y, Yue LY, Lin P, Liu YF, Xian JM, Zhou GY, Wang DY. Pilot study of DNA methylation in the pathogenesis of chronic rhinosinusitis with nasal polyps. Rhinology 2016; 53:345-52. [PMID: 26275402 DOI: 10.4193/rhino14.086] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND DNA methylation has been implicated in the pathogenesis of allergy and atopy. This study aimed to identify whether DNA methylation also plays an important role in the pathogenesis of nasal polyps (NP). METHODOLOGY NP tissues were obtained from 32 patients with chronic rhinosinusitis with bilateral NP. Biopsies of inferior turbinate mucosa (ITM) were taken from 18 patients who underwent rhinoseptoplasty (control group). The methylated genes, which were detected by DNA methylation microarray, were validated by methylation-specific polymerase chain reaction, bisulphite sequencing, real-time polymerase chain reaction and immunohistochemistry. RESULTS DNA methylation microarray identified 8,008 CpG islands in 2,848 genes. One hundred and ninety-eight genes were found to have a methylated signal in the promoter region in NP samples compared with ITM samples. The four top genes that changed, COL18A1, EP300, GNAS and SMURF1, were selected for further study. The methylation frequency of COL18A1 was significantly higher in NP samples than in ITM samples. CONCLUSIONS DNA methylation might play an important role in the pathogenesis of NP. Promoter methylation of COL18A1 was found to be significantly increased in NP tissues, further studies are necessary to confirm the significance of these epigenetic factors in the mechanisms underlying the development or persistence of NP.
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Tian YC, Zhang WH, Li FS, Wu YL, Wu Q, Sun F, Zhou GY, Wang L, Ma X, Xue QK, Zhao J. Ultrafast Dynamics Evidence of High Temperature Superconductivity in Single Unit Cell FeSe on SrTiO_{3}. Phys Rev Lett 2016; 116:107001. [PMID: 27015504 DOI: 10.1103/physrevlett.116.107001] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Indexed: 06/05/2023]
Abstract
We report the time-resolved excited state ultrafast dynamics of single unit cell (1 UC) thick FeSe films on SrTiO_{3} (STO), with FeTe capping layers. By measuring the photoexcited quasiparticles' density and lifetime, we unambiguously identify a superconducting (SC) phase transition, with a transition temperature T_{c} of 68 (-5/+2) K and a SC gap of Δ(0)=20.2±1.5 meV. The obtained electron-phonon coupling strength λ is as large as 0.48, demonstrating the likely crucial role of electron-phonon coupling in the high temperature superconductivity of the 1 UC FeSe on STO systems. We further find a 0.05 THz coherent acoustic phonon branch in the capping layer, which provides an additional decay channel to the gluing bosons.
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Affiliation(s)
- Y C Tian
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - W H Zhang
- State Key Laboratory for Low Dimensional Quantum Physics and Department of Physics, Tsinghua University, Beijing 100084, China
| | - F S Li
- State Key Laboratory for Low Dimensional Quantum Physics and Department of Physics, Tsinghua University, Beijing 100084, China
| | - Y L Wu
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Q Wu
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - F Sun
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - G Y Zhou
- State Key Laboratory for Low Dimensional Quantum Physics and Department of Physics, Tsinghua University, Beijing 100084, China
| | - Lili Wang
- State Key Laboratory for Low Dimensional Quantum Physics and Department of Physics, Tsinghua University, Beijing 100084, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100084, China
| | - Xucun Ma
- State Key Laboratory for Low Dimensional Quantum Physics and Department of Physics, Tsinghua University, Beijing 100084, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100084, China
| | - Qi-Kun Xue
- State Key Laboratory for Low Dimensional Quantum Physics and Department of Physics, Tsinghua University, Beijing 100084, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100084, China
| | - Jimin Zhao
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
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Li ZP, Zhang M, Gao J, Zhou GY, Li SQ, An ZM. Study of the correlation between growth hormone deficiency and serum leptin, adiponectin, and visfatin levels in adults. Genet Mol Res 2014; 13:4050-6. [PMID: 24615119 DOI: 10.4238/2014.february.14.16] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
We aimed to determine the significance and changes in leptin, adiponectin (ADP), and visfatin levels in adults with growth hormone deficiency (GHD). Forty adults (19 men, 21 women) who had been diagnosed with GHD comprised the observation group, while 36 healthy adults (18 men, 18 women) were used as the control group. Fasting venous blood was collected to detect leptin, ADP, and visfatin levels. There was no statistically significant difference (P > 0.05) between the GHD group and the control group in terms of gender ratio, age, and body mass index. The waist-to-hip ratio (0.894 ± 0.061 vs 0.830 ± 0.481), cholesterol (4.99 ± 1.046 vs 4.18 ± 0.683), triglyceride (1.97 ± 1.428 vs 1.08 ± 0.403), LDL (2.91 ± 0.980 vs 2.29 ± 0.540), leptin (3.00 ± 1.233 vs 1.89 ± 1.554), ADP (15.26 ± 6.449 vs 10.24 ± 7.608), and visfatin levels (10.42 ± 3.715 vs 5.87 ± 3.90) in the GHD group were significantly higher than those in the control group (all P < 0.05). The levels of growth hormone (1.68 ± 1.67 vs 15.53 ± 6.23), insulin-like growth factor-1 (IGF-1, 22.64 ± 16.41 vs 61.85 ± 28.48), IGF-binding protein-3 (4889 ± 2962 vs 6866 ± 3823), and dehydroepiandrosterone sulfate (1.466 ± 1.804 vs 6.000 ± 2.767) in the GHD group were significantly lower than those in the control group (all P < 0.05). Correlation analysis demonstrated that leptin level was positively correlated to ADP and visfatin in both the GHD and control groups and negatively correlated to IGF-1 (r = 0.332, P < 0.05). Logistic regression analysis demonstrated that leptin, ADP, and visfatin were independent risk factors for adults with GHD.
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Affiliation(s)
- Z-P Li
- Golden Card Hospital, West China Hospital, Sichuan University, Chengdu, China
| | - M Zhang
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - J Gao
- Department of Endocrinology, West China Hospital, Sichuan University, Chengdu, China
| | - G-Y Zhou
- Department of Endocrinology, West China Hospital, Sichuan University, Chengdu, China
| | - S-Q Li
- Golden Card Hospital, West China Hospital, Sichuan University, Chengdu, China
| | - Z-M An
- Department of Endocrinology, West China Hospital, Sichuan University, Chengdu, China
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Zhang Y, Ye WY, Wang JQ, Wang SJ, Ji P, Zhou GY, Zhao GP, Ge HL, Wang Y. dCTP pyrophosphohydrase exhibits nucleic accumulation in multiple carcinomas. Eur J Histochem 2013; 57:e29. [PMID: 24085278 PMCID: PMC3794360 DOI: 10.4081/ejh.2013.e29] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Revised: 08/28/2013] [Accepted: 09/02/2013] [Indexed: 11/25/2022] Open
Abstract
Nucleoside triphosphate pyrophosphohydrolase (NTP-PPase) functions as one of the mechanisms to guarantee the fidelity of DNA replication through the cleavage of non-canonical nucleotides into di- or monophosphates. Human NTP-PPase is poorly understood and investigated. In the present study, by using tissue microarrays with the paired cancer and adjacent regions, we found that with the prevalent expression of dCTP pyrophosphohydrase (DCTPP1) in the cytosol and nucleus in tumors investigated, DCTPP1 was inclined to accumulate in the nucleus of cancer cells compared to the paired adjacent tissue cells in multiple carcinomas including lung, breast, liver, cervical, gastric and esophagus cancer. More significantly, the higher DCTPP1 expression in the nucleus of lung, gastric and esophagus cancer cells was associated with histological subtypes. The nucleic accumulation of DCTPP1 was apparently observed as well when tumor cell line MCF-7 was treated with H2O2in vitro. Considering the roles of DCTPP1 on restricting the concentration of non-canonical nucleotides in the nucleotide pool, accumulation of DCTPP1 in the nucleus of tumor cells might suffice for maintaining the proper DNA replication in order to fulfill the requirement for the survival and proliferation of tumor cells.
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Affiliation(s)
- Y Zhang
- Shanghai Jiaotong University School of Medicine.
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Gao P, Xing AY, Zhou GY, Zhang TG, Zhang JP, Gao C, Li H, Shi DB. The molecular mechanism of microRNA-145 to suppress invasion-metastasis cascade in gastric cancer. Oncogene 2012; 32:491-501. [PMID: 22370644 DOI: 10.1038/onc.2012.61] [Citation(s) in RCA: 121] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Invasion and metastasis are the major features of malignant tumors that are responsible for 90% of cancer-related deaths. Recently, microRNAs have been discovered to have a role in suppressing tumor metastasis. This study's aim was to clarify the roles of miR-145 in gastric carcinomas and its underlying molecular mechanism in regulating tumor metastasis. Here, we demonstrate a stepwise downregulation of miR-145 level in nontumorous gastric mucosa, primary gastric cancers and their secondary metastases. In vitro analysis of miR-145's ectopic expression and loss-of-function suggests that it suppresses gastric cancer cell migration and invasion. In vivo spontaneous metastasis and experimental metastasis assay further confirm its function in suppressing the invasion-metastasis cascade, including impairing local invasion and inhibiting hematogenous metastasis in gastric cancers. Furthermore, we identified a novel mechanism of miR-145 to suppress metastasis. N-cadherin (CDH2) was proved to be a direct target of miR-145, using luciferase assay and western blot. Re-expressing N-cadherin in miR-145-transfected cells reverses their migration and invasion defects. Although not a direct target of miR-145, matrix metallopeptidase 9 (MMP9), but not MMP2, was also significantly decreased in miR-145-expressing cells. We suggest that miR-145 suppresses tumor metastasis by inhibiting N-cadherin protein translation, and then indirectly downregulates its downstream effector MMP9.
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Affiliation(s)
- P Gao
- Department of Pathology, Qilu Hospital, Shandong University, Shandong, PR China.
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Abstract
A novel microlens design with tunable double-focus is presented. It is fabricated by adding only one SU-8 photolithography step to the well-developed liquid-filled microlens fabrication process. The thickness of this layer determines the thickness difference between the central and peripheral region of the membrane, the deformation of which is used to define the surface profile of the microlens. The stepped thickness variation is finally manifested as the difference in deformation contour at two different regions of the membrane when subjected to uniform applied pressure, thereby causing two focal lengths to appear. Experimental and simulation results are presented, from which the tunability of the focal lengths of the double-focus microlens is demonstrated to be effective over a wide range through combining the structural design with pressure control. The successful demonstration of this unconventional microlens design concept will potentially extend t application of liquid-filled microlens technology.
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Affiliation(s)
- H B Yu
- Micro/Nano Systems Initiative Technology, Department of Mechanical Engineering, National University of Singapore, Singapore.
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Gao P, Zhou GY, Lei DP, Zhang XF, Li L, Xu JW, Lin XY. Selection of antisense oligonucleotides for reversal of multidrug resistance in breast carcinoma cells. Cytotherapy 2007; 9:795-801. [PMID: 17917879 DOI: 10.1080/14653240701656087] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
BACKGROUND Multidrug resistance (MDR) is a major obstacle in cancer treatment. In the present study, six regions of the mdr1 gene associated with transcription control or translation initiation were selected as targets. Six antisense oligonucleotides (ASODN; AS1-AS6) complementary to the corresponding sequence of the mdr1 gene were synthesized to investigate whether or not blocking the transcription control sites with ASODN could reverse MDR and which ASODN had the best efficiency for reversing MDR in breast carcinoma cells. METHODS Forty-eight hours after transfection, mdr1 mRNA and P-glycoprotein (Pgp) were determined by RT-PCR, flow cytometry and Rhodamine 123 (Rh123) retention assay. The chemosensitivity of the treated cells was evaluated by MTT assay. RESULTS A significant reduction in expression of mdr1 mRNA and Pgp was found in four groups (AS1, AS3, AS5 and AS6), accompanying a dysfunction of Pgp. The lowest levels of mdr1 index and Pgp expression were observed in the AS6 group. MTT assay showed that a significant reduction of drug resistance was found in the four groups, especially in the AS6 group, which showed an 8.4-fold reduction in drug resistance for adriamycin and a 10.5-fold reduction in drug resistance for vinblastine. DISCUSSION These data suggest that the MDR phenotype of breast carcinoma cells could be reversed by ASODN complementary to the transcription control site or translation initiation region. AS6, which is complementary to the translation initiation codon (ATG) of mdr1 cDNA, has the best reversal efficiency.
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Affiliation(s)
- P Gao
- Department of Pathology, School of Medicine, Jinan, China.
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17
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Sun YL, Zhou GY, Li KN, Gao P, Zhang QH, Zhen JH, Bai YH, Zhang XF. Suppression of glucosylceramide synthase by RNA interference reverses multidrug resistance in human breast cancer cells. Neoplasma 2006; 53:1-8. [PMID: 16416005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Glucosylceramide synthase (GCS), the enzyme that converts ceramide to glucosylceramide, induce multidrug resistance (MDR) in cancer cells. Recently, RNA interference (RNAi) is a powerful strategy for gene therapy by introducing double-stranded RNA and leading to the sequence-specific destruction. We have designed two different short hairpin RNAs (shRNAs) targeting GCS and introduced them into adriamycin- resistant human breast cancer cells (MCF-7/AdrR cells) to inhibit GCS expression. The results demonstrated that the shRNAs targeting GCS decreased GCS mRNA, abolished GCS protein levels and restored the sensitivity of MCF-7/AdrR cells to several antineoplastic drugs. This study revealed that this approach can reverse MDR effectively and it may be applicable to cancer patients as a specific means to restore the sensitivity to chemotherapy.
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Affiliation(s)
- Y-L Sun
- Department of Pathology, School of Medicine, Shandong University, 250012 Jinan, China.
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18
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Li WT, Zhou GY, Song XR, Chi WL, Ren RM, Wang XW. Modulation of BCRP mediated atypical multidrug resistance phenotype by RNA interference. Neoplasma 2005; 52:219-24. [PMID: 15875083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Multidrug resistance (MDR) in human cancers is one of the major causes of failure of chemotherapy. The emergence of breast cancer resistance protein (BCRP), a member of the ABC transporter family, has necessitated the development of antagonists. To overcome the BCRP-mediated atypical multidrug drug resistance, two small interfering RNA constructs (RNAi) targeting two different regions of BCRP mRNA were designed to inhibit the atypical MDR expression by transfecting them into MCF-7/MX100 cell lines. The multidrug resistance index to mitoxantrone and the intensity of mitoxantrone fluorescence of MCF-7/MX100 decreased after transfected by pSUPER-BCRP-A and pSUPER-BCRP-B respectively; the BCRP mRNA level and the BCRP protein level of MCF-7/MX100 decreased after treated with pSUPER-BCRPs. The two constructed RNAi plasmids could reverse the atypical mutidrug resistance mediated by BCRP, but neither can reversed it completely, this may be due to low transfection efficiency and transient transfection.
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Affiliation(s)
- W T Li
- Department of Pathology, Medical School, Shandong University, Jinan, 250012 Shandong Province, P.R.China
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19
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Zhou GY, Zhang ZY, Gu JZ, Ma JZ. [Comparative research on mixed and 488 nm argon laser PDT for port wine stain]. Shanghai Kou Qiang Yi Xue 2000; 9:173-4. [PMID: 15014797] [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: 04/29/2023]
Abstract
OBJECTIVE In order to search a safer argon laser photodynamic method, this study used 488 nm wavelength and common mixed spectrum argon laser PDT for treating Port Wine Stain. The therapeutic effects and side effect were compared. METHODS Fifty two cases of PWS were divided into two groups randomly. Argon laser PDT by two ways of laser irradiation were used. RESULTS Our data revealed 19.23% cure rate in 488 nm laser PDT group, while that of mixed wavelength laser group was 11.54%. There was no significant difference in the two groups. Also the effective rate of 488 nm laser group was 92.31% and that of mixed group was 88.46%. But the difference was not significant statistically. Side effect occurred often in mixed spectrum laser group. That was 57.69% for mixed group, 38.46% for 488 nm group. CONCLUSION Argon laser PDT at 488 nm had the similar therapeutic result contrasted to mixed spectrum laser group, but it was safe.
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Affiliation(s)
- G Y Zhou
- Department Of Oral Maxillofacial Surgery, Ninth People's Hospital, Shanghai Second Medical University, Shanghai 200011, China
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20
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Zhou GY, Zhang ZY. [Preliminary clinical study on krypton laser photodynamic therapy for PWS]. Shanghai Kou Qiang Yi Xue 2000; 9:168-70. [PMID: 15014795] [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: 04/29/2023]
Abstract
OBJECTIVES In order to explore an ideal PWS treatment, which could destroy the capillary of lesion without any damage to skin. Based on principle of improving elective therapeutic efficacy of photodynamic therapy, new Krypton laser PDT was introduced to this preliminary clinical trial. MATERIALS AND METHODS The absorptive spectrum was measured on photosensitizer PsD-007. The therapeutic laser dosage and result and side effect were surveyed. Twenty cases of PWS were randomly selected by means of self-control. 413 nm wavelength laser PDT was carried on those patients. Lesion responses were investigated at different phases after treatment. More attention was paid to the result and side effect. Biopsy was taken from one case. RESULTS PsD-007 has the soret peak at 408 nm. There was purplish reaction within a week, which disappeared spontaneously within two months. Lesion blanch with neither weeping soakage nor scar formation. All cases got dramatically blanch of lesions. Histological finding revealed red blood cells leaking through broken vessels, while dermal remained normal. CONCLUSION 413 nm Krypton laser PDT had target elective effect, which had satisfactory result. It suggested good potential plication.
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Affiliation(s)
- G Y Zhou
- Department Of Oral Maxillofacial Surgery, Ninth People's Hospital, Shanghai Second Medical University, Shanghai 200011, China
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21
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Zhou GY, Zhang ZY. [Derma spectrometer measurement for port wine stain]. Shanghai Kou Qiang Yi Xue 2000; 9:171-2, 184. [PMID: 15014796] [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: 04/29/2023]
Abstract
OBJECTIVE Twenty cases of PWS were measured by means of Derma Spectrometer with the goal of estimating PWS condition. MATERIALS AND METHODS Twenty patients of PWS were chosen randomly in this study. Derma Spectrometer was used to detect lesion and control sides pre- and post- laser treatment. RESULTS The mean normal skin's M-Index was (36.18+/-6.45)%, E-Index was (1.39+/-4.85)%. Lesion's M-Index and E-Index were (44.85+/- 6.61)%, (13.05+/-6.30)%. Lesion's M-Index and E-Index after one treatment were (41.00+/-5.30)% and (9.04+/-4.98)%. Significant difference existed between normal and lesion's M-Index. Also there were difference among normal skin, lesion and lesion treated. CONCLUSION There is difference between normal and lesion M-Index. But none for lesion and lesion treated. Different E-Index were among normal skin, lesion and treated lesion. The E-Index was decreased at treated lesion. It suggested blanch of PWS after laser treatment. Derma spectrometer has the role of evaluation of PWS.
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Affiliation(s)
- G Y Zhou
- Department of Oral Maxillofacial Surgery, Ninth People's Hospital, Shanghai Second Medical University, Shanghai 200011, China
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22
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Zhou GY, Gao BQ, Liu YF, Zhang XL, Wang JQ. [Extramedullary plasmacytoma of the head and neck: a clinicopathologic, immunohistochemistry study]. Lin Chuang Er Bi Yan Hou Ke Za Zhi 2000; 14:168-70. [PMID: 12541493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To investigate the relation between histopathological feature, clinical behavior characters, immunoglobulin (Ig) secretory function and prognosis of the extramedullary plasmacytoma (EMP) of the head and neck. METHOD 12 cases of EMP in the head and neck region were studied retrospectively. The clinicopathological records from January, 1977 to December, 1996 were reviewed. Immunohistochemical (IHC) stains for detecting intracytoplasmic immunoglobulin kappa (IgG kappa) and lambda (IgG lambda) were carried out. RESULT 10 cases of the patients were male and 2 female; Their ages ranged from 32 to 67 years with an average of 57 years. The tumors were located in the nasosinus (6), nasopharynx (2), Larynx (3) and ear (1). Low-(I), intermediate (II) and high-grade (III) tumors were 3, 3 and 6 cases respectively. Two patients with EMP of nasopharynx were treated with radiotherapy, in others radiotherapy was administered after complete surgical resection. Follow-up time ranged from 10 to 76 months. IHC showed monoclonality of the plasma cell and was positive for IgG lambda (6 cases) and IgG kappa (6 cases, conferming the identical clonal origin of the plasma cells. The 5-year survival for grade I, II and III were 75.0%, 62.0% and 37.6%, 37.5% and 68.50% for IgG lambda positive and IgG kappa positive cases, respectively. There are statistically significance between them (P < 0.01). CONCLUSION EMP in head and neck region are rare plasma cell tumors. IHC play an important role in differential diagnosis. The combination of surgery and radiotherapy proved to be an adequate and effective treatment. The grading and IgG secretory function may be valuable for predicting the prognosis of EMP.
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Affiliation(s)
- G Y Zhou
- Department of Otolaryngology, First Affiliated Hospital of West China University of Medical Sciences, Chengdu, 610041
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23
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Zhou GY, Zhang ZY, Zhu HG, Zhang CP, Sun J. [Application of Continuous Wave Nd:YAG Laser Irradiation in the Management of Cavernous Hemangioma of Deep Oral-Maxillofacial Regions]. Shanghai Kou Qiang Yi Xue 2000; 9:11-3. [PMID: 15014837] [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: 04/29/2023]
Abstract
OBJECTIVE:Based on our previous clinical report of Nd:YAG laser irradiation as the means for deeling with cavernous hemangioma in deep oral-maxillofacial regions, this article detailed futher clinical application of this laser, trying to set up a non-surgical method for treatment of ang ioma. The relationship of laser dosage and therapeutic effect and possible surrounding tissue thermal damages were investigated.METHODS:Clinical study was carried out on 31 cases of deep hemangiomas involving different areas. Nd:YAG laser irradiation was delivered after surgical elevation of the flaps. All cases surveyed a follow up of 1.5 to 3 years.RESULTS:Posttherapeutic clinical and imaging examinations were taken to compare the findings before and after treatment. There are 29 cases with complete regression (93.55%), 2 cases with partial regression (6.45%). No complication occurred.CONCLUSION:Nd:YAG laser irradiation after flap elevation has been confirmed to be a valuable means to treat deep hemangiomas. It has the advantages of target tissue selection and normal tissue preservation, simplified manipulation and less bleeding, fewer complications and hihger successful rate.
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Affiliation(s)
- G Y Zhou
- Department Of Oral Maxillofacial Surgery,Shanghai Ninth People's Hospital,Shanghai Second Medical University. Shanghai 200011,China
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24
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Zhu MY, Hu MY, Zhou GY. [Present-conditions of nutritional knowledge of clinical doctors]. Hunan Yi Ke Da Xue Xue Bao 2000; 25:30-2. [PMID: 12212240] [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
Nutritional knowledge of 184 clinical doctors was investigated by questionnaires. The results showed that clinical doctors did not have enough nutritional knowledge to meet the demands of their work. The doctors grasped fundamental nutritional knowledge better than clinical nutritional knowledge (P < 0.01). There was no significant difference between the doctors in different groups with different academic degrees, professional titles, work histories, and departments (P > 0.05). Therefore, we suggest that the class hours of nutrition science can be added, the course of clinical nutrition can be offered in medical university, and the nutritional knowledge of clinical doctors can be improved by conducting nutritional science training course.
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Affiliation(s)
- M Y Zhu
- Department of Nutrition and Food Hygiene, Hunan Medical University, Changsha 410078
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25
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Zhou GY, Zhao BL, Hou JW, Ma GE, Xin WJ. Protective effects of sodium tanshinone IIA sulphonate against adriamycin-induced lipid peroxidation in mice hearts in vivo and in vitro. Pharmacol Res 1999; 40:487-91. [PMID: 10660946 DOI: 10.1006/phrs.1999.0545] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Protective effects of sodium tanshinone IIA sulphonate against adriamycin-induced lipid peroxidation were investigated. Data showed that treatment with sodium tanshinone IIA sulphonate could prevent mice from decrease in body weight caused by adriamycin. It was found that myocardial lipid peroxidation in sodium tanshinone IIA sulphonate-treated mice was lower compared with that in adriamycin-treated ones. The activities of some endogenous antioxidant enzymes, such as superoxide dismutase, glutathione peroxidase and catalase, were higher in the sodium tanshinone IIA sulphonate group than that in the adriamycin group. In vitro experiments showed that sodium tanshinone IIA sulphonate could inhibit adriamycin-induced mitochondrial lipid peroxidation and swelling. Sodium tanshinone IIA sulphonate could scavenge adriamycin semiquinone free radical in heart homogenate dose-dependently. Thus, protective effects of sodium tanshinone IIA sulphonate may not only be related to its antioxidant activity but also to its regulation of antioxidant enzyme activities in the heart.
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Affiliation(s)
- G Y Zhou
- Institute of Biophysics, Academia Sinica, Beijing, China
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26
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Yu YC, Zhang ZY, Zhou GY, Zhu HG. [Rabbit facial nerve damager after Nd: YAG laser irradiation: an experimental study]. Shanghai Kou Qiang Yi Xue 1999; 8:197-9. [PMID: 15048207] [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: 04/29/2023]
Abstract
OBJECTIVE:To investigate the change effects of rabbit facial nerve after Nd:YAG laser irradiation.METHODS: According to therapeutic laser energy density,the facial nerves of 28 rabbits were irradiated by Nd:YAG laser with 5 different laser dosages.RESULTS: The facial nerves were functionally intact with mild degeneration histologically at three weeks postoperatively,when the energy density of Nd: YAG laserlaser lower than 70J/cm(2).In the group with energy density of 140J/cm(2),facial nerve density functionally impaired with moderate degeneration which rehabilitated within six weeks. While the laser power increaseed to more than 240J/cm(2),irreversible nerve damages happened.CONCLUSION: laser thermal effect is the main cause of nerve damage,there is a positive correlation between laser dosage and nerve impairment.
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Affiliation(s)
- Y C Yu
- Department of Oral and Maxillofacial, School of Stomatlolgy, Shanghai Second Medical University. Shanghai 200011, China
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27
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Zhang DN, Zhou GY, Zhao ZM. [Treatment of oral leukoplakia: Comparison of the results beteen cryosurgery and laser surgery]. Shanghai Kou Qiang Yi Xue 1999; 8:118-9. [PMID: 15048293] [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: 04/29/2023]
Affiliation(s)
- D N Zhang
- Department of Dentistry, Material and Children Hygiene Clinic of Pudong New District. Shangahi 201200, China
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28
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Zhou GY, Zhang ZY, Lin GC, Gu JZ, Qiu WL. [Evaluation of cryosurgery for the management of oral malignant mucomembranous melanoma-A survey of 107 cases reports]. Shanghai Kou Qiang Yi Xue 1999; 8:92-3. [PMID: 15048279] [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: 04/29/2023]
Abstract
OBJECTIVE:There were 13 cases underwent operation.24 cases underwent cryosurgery only and 70 cases received comprehensive management,which as cryosurgery,operation,chemotherapy and immuno-therapy.RESULTS:The 3'and 5' year survival rate of three groups were 0.0%,0.0%,37.50%,31.25% and 57.14%,36.07%.There are significant differences between operation group and cryosurgery group and between operation group and comprehensive treatment group.Although the third group got the better result,but the difference between late two groups was not statistical significant.CONCLUSION:It is suggested that comprehensive treatment be the routine regime of melanoma in head and neck. Our experience with review of literature covered the classification, surgical principle and complication was presented.
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Affiliation(s)
- G Y Zhou
- Departmentof Oral & Maxillofacial Surgery,School of Stomatology,Shanghai Second Medical University. Shanghai 200011,China
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29
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Zhu HG, Zhou GY, Yu YC, Zhang ZY. [Surgical approach plus Nd:YAG laser irradiation for the management of hemangioma in deep maxillofacial region]. Shanghai Kou Qiang Yi Xue 1996; 5:187-8. [PMID: 15159979] [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: 04/29/2023]
Abstract
This article introduces a new method for the management of cavernous hemangioma in deep maxillofacial region.Common surgical approach was carried out to expose the mass of hemangioma,then Nd:YAG laser was irradiated it without tumor removal.Immediatelly shrinking of hemangioma can be seen in all these seven cases.The therapeutic effect was satisfied in 3-12 months follow up.With the basic research of the rabbit facial nerve's Nd:YAG laser injured detecting experiment.We discussed its indication,advantage and interaction between laser and peripheral tissue.Our result shown that this new way is a good method for hemangioma in deep maxillofacial region as its advantages of skin preventing and peripheral normal tissue preserving
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Affiliation(s)
- H G Zhu
- Department of Oral Maxillofacial Surgery,School of Stomatology,Shanghai Second Medical University. Shanghai 200011, China
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30
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Yang C, Qiu WL, Ha Q, Zhou GY. [Diagnostic arthroscopy of the Maraca mulatto's TMJ]. Shanghai Kou Qiang Yi Xue 1996; 5:148-51. [PMID: 15160007] [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: 04/29/2023]
Abstract
To gain further knowledge about features of Maraca mulatto's TMJ,occlusion,and teeth,we underwent examining 4 rhesus monkeys with 8 joints.The same and different features were concluded between Maraca mulatto's anatomical structures and human begins.Afterwards,10 aged rhesus monkeys with 20 joints were examined by TMJ arthroscopy.The results showed that the appearances in 70%(14/20) of the aged were the same as those in human pathologic TMJs. In conclusion,the Maraca mulatto can suffer from the same arthropathy as human being,and it is possible to choose the aged as a natural pathologic model.
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Affiliation(s)
- C Yang
- Department of Oral and maxillofacial Surgery, School of Stomatology,Shanghai Second Medical University. Shanghai 200011,China
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31
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Singewald N, Zhou GY, Chen F, Philippu A. Corticotropin-releasing factor modulates basal and stress-induced excitatory amino acid release in the locus coeruleus of conscious rats. Neurosci Lett 1996; 204:45-8. [PMID: 8929974 DOI: 10.1016/0304-3940(96)12312-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [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: 02/03/2023]
Abstract
The in vivo interactions between corticotropin-releasing factor (CRF) and excitatory amino acid (EAA) release in the locus coeruleus (LC) were studied. Superfusion of the LC with CRF (0.1 microM) led to a prolonged increase in the release rate of aspartate and, to a lesser extent, of glutamate. The CRF antagonist alpha-helical CRF9-41 (1 microM) had no effect on basal EAA release but abolished the enhanced aspartate and glutamate release induced by noise stress (95 dB). Tail pinch-induced EAA release was not influenced by alpha-helical CRF9-41. Results demonstrate a facilitatory action of CRF on in vivo EAA release in the LC. Furthermore, modulation by CRF of stress-induced EAA release in the LC depends on the nature of stress.
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Affiliation(s)
- N Singewald
- Department of Pharmacology and Toxicology, University of Innsbruck, Austria
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Singewald N, Zhou GY, Schneider C. Release of excitatory and inhibitory amino acids from the locus coeruleus of conscious rats by cardiovascular stimuli and various forms of acute stress. Brain Res 1995; 704:42-50. [PMID: 8750960 DOI: 10.1016/0006-8993(95)01102-1] [Citation(s) in RCA: 52] [Impact Index Per Article: 1.8] [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: 02/02/2023]
Abstract
The release of amino acids in the locus coeruleus (LC) of conscious, freely moving rats was studied in time periods of 3 min by use of push-pull superfusion under basal conditions and during application of various experimental stimuli known to influence the activity of the LC-noradrenergic system. Tail pinch for 3 min led immediately to a pronounced tetrodotoxin-sensitive increase in the release rates of the excitatory amino acids (EAA) glutamate (Glu) and aspartate (Asp) and to moderate increases in GABA and taurine (Tau) outflow. Immobilization stress for 9 min elevated the release of the EAA Glu and Asp, as well as that of the inhibitory amino acid GABA to a similar extent. A fall of blood pressure (BP) by nitroprusside or haemorrhage slightly enhanced the release rates of Glu and Asp. Noradrenaline-induced rise in BP, as well as hypervolaemia increased the release rate of GABA, but did not influence the release rates of Glu, Asp, Tau and arginine (Arg). The results provide direct evidence that the amino acid release pattern in the LC of conscious rats differs in response to various stimuli, according to the modality of the stimulus. A functional significance of excitatory and inhibitory amino acids in the regulation of LC activity during stress and haemodynamic changes is suggested.
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Affiliation(s)
- N Singewald
- Department of Pharmacology and Toxicology, University of Innsbruck, Austria.
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33
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Lu CY, Lin GC, Gu JZ, Zhou GY, Cao Y. [A preliminary study of BCG adjuvant therapy in oral and maxillofacial malignant melanoma.]. Shanghai Kou Qiang Yi Xue 1994; 3:144-5. [PMID: 16538310] [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: 05/07/2023]
Abstract
Malignant melanoma is a kind of tumor with higher malignant and lower therapeutic effect.it is demonstrated by experiment that melanoma cells have antigenicity and refer to immunology.BCG is a kind of biologic response modifier(BRM).it is able to promote physical antitumor ability.There were 42 patients with oral and maxillofacial malignant melanoma who received freezing therapy and surgery in this paper.11 cases of them added BCG immunotherapy.The result is that the median survival time of therapy plus BCG group is 4 years,and 3 years,5 years,7 years survival rate are 89%,72% and 32%,over 8 years survival rate is 18%.The median survival time of another group is 2 years,and 3 years,5 years,7 years survival rate are 55%,24% and 12%,over 8 years survival rate is 3%.There is a statistically significant difference between these two groups and BCG group has a longer survival time.This preliminary study demonstrated that BCG adjuvant therapy could decrease recurrence of metastases and increase patients survival time.
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Affiliation(s)
- C Y Lu
- Department of Oral Immunology,School of Stomatology,Shanghai No.9 Hospital,Shanghai Second Medical University.Shanghai 200011, China
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34
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Zhang ZQ, Zhou GY, Huang TR. [A case-control study on relationship between hepatitis C infection and primary liver cancer]. Zhonghua Zhong Liu Za Zhi 1994; 16:327-30. [PMID: 7534684] [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: 01/25/2023]
Abstract
All the cases and controls emerged from a cohort study held in the past years. They were male, more than 20 years of age at the time of their enrollment into the cohort study, with serum specimens taken and kept at -20 degrees C. Every death of primary liver cancer (PLC), occurred since then, as a 'case' (78 in total), was compared with no more than 4 matched controls chosen from cohort members who were still alive until the last follow-up. ELISA technique was used to test anti-HCV antibodies in the stored serum specimens of the cases and controls. The Results showed that anti-HCV prevalence rates were 33.3% (26/78) of the cases and 15.3% (40/262) of their matched controls, respectively (chi 2 = 11.86, P < 0.01, ORMH = 3.0, PAR% = 23.40%). The results suggest that HCV infection is another important factor in the aetiology of PLC in Guangxi, China. Because the serum specimens tested were drawn years before the occurrence of PLC deaths, our conclusion need not worry about the sequential problem, which occurs in most of other kinds of case-control studies.
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Affiliation(s)
- Z Q Zhang
- Cancer Institute of Guangxi, Nanning
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35
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Abstract
The principle and equipment of photothermal radiometry probing of scars in the internal surface of a thin metal tube are described. By measuring the amplitude frequency characteristics of the photothermal signal, we calculated the depth of the scars in the internal surface of a sample.
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Zhou GY, Jauhiainen M, Stevenson K, Dolphin PJ. Human plasma lecithin:cholesterol acyltransferase. Preparation and use of immobilized p-aminophenylarsenoxide as a catalytic site-directed covalent ligand in enzyme purification. J Chromatogr 1991; 568:69-83. [PMID: 1770111] [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: 12/28/2022]
Abstract
A method is described for the preparation of p-aminophenylarsenoxide-linked carboxymethyl (CM) Bio-Gel A and its use as a specific, catalytic site-directed affinity chromatography ligand in the final stages of the purification of human plasma lecithin:cholesterol acyltransferase (LCAT) (EC 2.3.1.43). Previous mechanistic studies by us demonstrated that phenylarsenoxide derivatives, which are highly specific for vicinal thiols, could inhibit LCAT via a covalent interaction with the sulphydryl groups of the two catalytic cysteine residues and that this inhibition could be rapidly and completely reversed upon addition of 2,3-dimercaptopropanesulphonic acid. The ligand was covalently linked to CM Bio-Gel A activated through an N-hydroxysuccinyl ester formed by N-hydroxysuccinimide and dicyclohexylcarbodiimide in dry dimethyl sulphoxide; 87% of the added p-aminophenylarsenoxide was coupled to the CM Bio-Gel A in 3 h at 25 degrees C giving 2.3 mg of p-aminophenylarsenoxide per ml of gel. Homogeneous LCAT free of apo A-I, apo E, apo D and albumin was obtained in an 11% yield and purified 15,013-fold overall. A 13-fold purification was obtained by chromatography upon p-aminophenylarsenoxide-CM Bio-Gel A. This method is a useful final step in LCAT purification and will prove valuable in the purification of other proteins and compounds containing vicinal thiols.
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Affiliation(s)
- G Y Zhou
- Department of Biochemistry, Dalhousie University, Halifax, Nova Scotia, Canada
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Zhou GY. [Ultrastructure and immunologic pathology of membranous glomerulonephritis of 91 cases]. Zhonghua Bing Li Xue Za Zhi 1989; 18:182-4. [PMID: 2699841] [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: 01/02/2023]
Abstract
91 cases of membranous glomerulonephritis were investigated with light, electron and immunofluorescence microscopy. The findings indicated that 12 of 91 renal biopsies in membranous glomerulonephritis showed mesangial cell proliferation in various extent. The mesangial cell proliferation, segmental sclerosis and glomerular capillary adhesion to Bowmen's capsule were related to the stages and evolution of membranous glomerulonephritis. Granular immunofluorescence staining for IgG was a consistent finding, but the positive rate of C3 was lower than that of IgG. The relationship of immunofluorescence between different stages of membranous glomerulonephritis was not significant. In some cases, the subepithelial deposits were partially resorbed in stage 2 or stage 3, suggesting that early stage membranous glomerulonephritis could recover or turn to a favorable condition.
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Yu GR, Chen SX, Mei SW, Zheng Y, Chen L, Zhou GY, Lu PH. Clinical and immunologic status of viral myocarditis and its treatment. Chin Med J (Engl) 1988; 101:191-6. [PMID: 2457472] [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: 01/01/2023] Open
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Chen SX, Yu GR, Bao SH, Mei SW, Zang DL, Zheng DS, Huang MX, Zhou GY, Lu PH, Sai FL. An assessment of thymosine in the treatment of patients suffering from myocarditis with decreased cell-mediated-immunity. Chin Med J (Engl) 1985; 98:841-6. [PMID: 3009100] [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: 01/03/2023] Open
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