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Li HY, Wang YY, Liu H, Liu HX, Jiang LY, Han YC, Zhou WY, Mao T, Fang WT. [The ninth edition of TNM staging for lung cancer: precise staging for precise diagnosis and treatment]. Zhonghua Wai Ke Za Zhi 2024; 62:537-542. [PMID: 38682624 DOI: 10.3760/cma.j.cn112139-20231210-00262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
The ninth edition of TNM staging for lung cancer has been announced at the 2023 World Lung Cancer Congress and implemented from January 1, 2024. Te focus of the ninth TNM staging change is dividing N2 into N2a and N2b, as well as M1c into M1c1 and M1c2. Although the T staging has not changed, it has played an important role in verifying the eighth edition of the T staging. The subdivision of stage N2 has led some patients with ⅢA of the eighth edition to experience ascending or descending stages, which will more accurately help to assess the condition and prognosis of patients with mediastinal lymph node metastasis, as well as the design of related clinical studies. Modifying the M1c staging will help define oligometastasis and explore new treatment models in the future. The ninth edition of the TNM staging system provides a more detailed division of different tumor loads, but there is no clear explanation for the staging of lung cancer after neoadjuvant therapy. Further data analysis is needed, and it is expected to be answered in the tenth edition of TNM staging.
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Affiliation(s)
- H Y Li
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Y Y Wang
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - H Liu
- Department of Radiotherapy, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - H X Liu
- Department of Thoracic Surgery, Liaoning Provincial Cancer Hospital, Shenyang 110801, China
| | - L Y Jiang
- Department of Pulmonary Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Y C Han
- Department of Pathology, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - W Y Zhou
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - T Mao
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - W T Fang
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
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Yang GW, Zhou WY, Peng HY, Liang D, Mu TJ, Hu SM. Recursive-NeRF: An Efficient and Dynamically Growing NeRF. IEEE Trans Vis Comput Graph 2023; 29:5124-5136. [PMID: 36194712 DOI: 10.1109/tvcg.2022.3204608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
View synthesis methods using implicit continuous shape representations learned from a set of images, such as the Neural Radiance Field (NeRF) method, have gained increasing attention due to their high quality imagery and scalability to high resolution. However, the heavy computation required by its volumetric approach prevents NeRF from being useful in practice; minutes are taken to render a single image of a few megapixels. Now, an image of a scene can be rendered in a level-of-detail manner, so we posit that a complicated region of the scene should be represented by a large neural network while a small neural network is capable of encoding a simple region, enabling a balance between efficiency and quality. Recursive-NeRF is our embodiment of this idea, providing an efficient and adaptive rendering and training approach for NeRF. The core of Recursive-NeRF learns uncertainties for query coordinates, representing the quality of the predicted color and volumetric intensity at each level. Only query coordinates with high uncertainties are forwarded to the next level to a bigger neural network with a more powerful representational capability. The final rendered image is a composition of results from neural networks of all levels. Our evaluation on public datasets and a large-scale scene dataset we collected shows that Recursive-NeRF is more efficient than NeRF while providing state-of-the-art quality. The code will be available at https://github.com/Gword/Recursive-NeRF.
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Zhou WY, Yuan L, Chen SY, Gao L, Hu SM. LC-NeRF: Local Controllable Face Generation in Neural Radiance Field. IEEE Trans Vis Comput Graph 2023; PP:1-12. [PMID: 37459257 DOI: 10.1109/tvcg.2023.3293653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
3D face generation has achieved high visual quality and 3D consistency thanks to the development of neural radiance fields (NeRF). However, these methods model the whole face as a neural radiance field, which limits the controllability of the local regions. In other words, previous methods struggle to independently control local regions, such as the mouth, nose, and hair. To improve local controllability in NeRF-based face generation, we propose LC-NeRF, which is composed of a Local Region Generators Module (LRGM) and a Spatial-Aware Fusion Module (SAFM), allowing for geometry and texture control of local facial regions. The LRGM models different facial regions as independent neural radiance fields and the SAFM is responsible for merging multiple independent neural radiance fields into a complete representation. Finally, LC-NeRF enables the modification of the latent code associated with each individual generator, thereby allowing precise control over the corresponding local region. Qualitative and quantitative evaluations show that our method provides better local controllability than state-of-the-art 3D-aware face generation methods. A perception study reveals that our method outperforms existing state-of-the-art methods in terms of image quality, face consistency, and editing effects. Furthermore, our method exhibits favorable performance in downstream tasks, including real image editing and text-driven facial image editing.
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Huang J, Yang ZY, Wei RL, Atyah ATYAH, Sun YL, Xu L, Zhou WY. [Surgical treatment strategies for pancreatic cancer with simultaneous liver metastasis]. Zhonghua Wai Ke Za Zhi 2023; 61:575-581. [PMID: 37402686 DOI: 10.3760/cma.j.cn112139-20230329-00125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 07/06/2023]
Abstract
Objective: To explore the outcome of different treatment strategies in patients with pancreatic cancer with synchronous liver metastasis (sLMPC). Methods: A retrospective analysis of the clinical data and treatment results of 37 patients with sLMPC treated in China-Japan Friendship Hospital was performed from April 2017 to December 2022. A total of 23 males and 14 females were included,with an age(M(IQR)) of 61 (10) years (range: 45 to 74 years). Systemic chemotherapy was carried out after pathological diagnosis. The initial chemotherapy strategy included modified-Folfirinox, albumin paclitaxel combined with Gemcitabine, and Docetaxel+Cisplatin+Fluorouracil or Gemcitabine with S1. The possibility of surgical resection (reaching the standards of surgical intervention) was determined after systemic treatment,and the chemotherapy strategy was changed in the cases of failed initial chemotherapy plans. The Kaplan-Meier method was used to estimate the overall survival time and rate,while Log-rank and Gehan-Breslow-Wilcoxon tests were used to compare the differences of survival curves. Results: The median follow-up time for the 37 sLMPC patients was 39 months,and the median overall survival time was 13 months (range:2 to 64 months) with overall survival rates of 1-,3-,and 5-year of 59.5%,14.7%,and 14.7%,respectively. Of the 37 patients,97.3%(36/37) initially received systemic chemotherapy, 29 completed more than four cycles,resulting in a disease control rate of 69.4% (partial response in 15 cases,stable disease in 10 cases,and progressive disease in 4 cases). In the 24 patients initially planned for conversion surgery,the successful conversion rate was 54.2% (13/24). Among the 13 successfully converted patients,9 underwent surgery and their treatment outcomes were significantly better than those (4 patients) of those who did not undergo surgery (median survival time not reached vs. 13 months,P<0.05). Regarding the 9 patients whose conversion was unsuccessful, no significant differences were observed in median survival time between the surgical group (4 cases) and the non-surgical group (5 cases) (P>0.05). In the allowed-surgery group(n=13),the decreased in pre-surgical CA19-9 levels and the regression of liver metastases were more significant in the successful conversion sub-group than in the ineffective conversion sub-group;however, no significant differences were observed in the changes in primary lesion between the two groups. Conclusion: For highly selective patients with sLMPC who achieve partial response after receiving effective systemic treatment,the adoption of an aggressive surgical treatment strategy can significantly improve survival time;however, surgery dose not provide such survival benefits in patients who do not achieve partial response after systemic chemotherapy.
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Affiliation(s)
- J Huang
- Department of Hepatobiliary and Pancreatic Surgery,China-Japan Friendship Hospital,Beijing 100029,China
| | - Z Y Yang
- Department of Hepatobiliary and Pancreatic Surgery,China-Japan Friendship Hospital,Beijing 100029,China
| | - R L Wei
- Department of Hepatobiliary and Pancreatic Surgery,China-Japan Friendship Hospital,Beijing 100029,China
| | - A T Y A H Atyah
- Department of Hepatobiliary and Pancreatic Surgery,China-Japan Friendship Hospital,Beijing 100029,China
| | - Y L Sun
- Department of Hepatobiliary and Pancreatic Surgery,China-Japan Friendship Hospital,Beijing 100029,China
| | - L Xu
- Department of Hepatobiliary and Pancreatic Surgery,China-Japan Friendship Hospital,Beijing 100029,China
| | - W Y Zhou
- Department of Hepatobiliary and Pancreatic Surgery,China-Japan Friendship Hospital,Beijing 100029,China
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Zhang C, Zhao HJ, Wang J, Zhou WY, Zhang TJ, Zhang СВ. [Structural Analysis of the 5'-Flanking Region of Human Alpha-Fetoprotein Encoding Gene]. Mol Biol (Mosk) 2022; 56:118-125. [PMID: 35082265 DOI: 10.31857/s0026898422010128] [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: 01/17/2021] [Accepted: 05/19/2021] [Indexed: 06/14/2023]
Abstract
Alpha fetoprotein (AFP) is a growth factor and a signaling molecule that promotes the development of HCC. However, the mechanism of the awakening of AFP in course of HCC progression remains unclear. We have studied the structure of AFP 5'-flanking regulatory sequence using dual-luciferase reporter vectors with fragments of this region. Reporter constructs were transfected into HepG2 and PLC hepatoma cell lines. The AFP 5'-flanking regulatory sequence between -1871 and -1004 bp was promoting gene transcription, while the effects of the sequence between -1004 and -667 bp were small. The fragment located between positions -667 and -448 bp inhibited the transcriptional activity of the AFP gene, while the fragment located between -448 and -287 bp promoted expression of AFP. The effects of the adjacent promoter sequence were small. A variety of transcription factor binding sites were mapped.
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Affiliation(s)
- C Zhang
- National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, P.R. China
| | - H J Zhao
- National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, P.R. China
| | - J Wang
- National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, P.R. China
| | - W Y Zhou
- National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, P.R. China
| | - T J Zhang
- National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, P.R. China
| | - С В Zhang
- National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, P.R. China
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Liu B, Zhou WY, Xiao YT, Cheng YH, Ge YH, Nie SD, Lyu P. [Analysis of the diagnosis and treatment of 24 cases of hepatic perivascular epithelioid cell tumor]. Zhonghua Gan Zang Bing Za Zhi 2022; 30:889-894. [PMID: 36207947 DOI: 10.3760/cma.j.cn501113-20201013-00551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Objective: To investigate hepatic perivascular epithelioid cell tumor (PEComa) diagnosis and treatment plan. Methods: 24 cases diagnosed with PEComa clinical manifestations, serum alpha fetoprotein (AFP), carcinoembryonic antigen (CEA), carbohydrate antigen 199 (CA199), imaging findings, surgical methods, postoperative hospital stay, pathological results and prognosis were analyzed retrospectively from September 2015 to September 2020. Results: Majority of patients were females (79.2%), aged 41.5±11.4 years. Tumors were predominantly located in the right liver (50.0%). 76.7% of the cases were mostly clinically asymptomatic. AFP, CEA and CA199 indices were all negative. CT mostly showed low density tumor in the plain scan phase, enhanced in the enhancement phase, and enhanced and weakened in portal venous and equilibrium phase (66.7%). MRI manifestations of most tumors were hypointense on T1WI and hyperintense on T2WI (72.7%). B-ultrasound mostly showed hyperechoic mass in the tumor area with punctate vascular shadow (52.9%). Postoperative hospital stay was 9.0±2.4 days for laparoscopic surgery patients (n=13), 13.4±6.3 days for traditional laparotomy (hereinafter referred to as laparotomy, n=10), and 3 days for 1 patient with microwave ablation. All postoperative pathological results were positive for HMB45 and Melan-A. Follow-up results: 21 cases survived normally, with no tumor recurrence in the recent physical examination; two cases had tumor recurrence and they died two and three years after surgery, and one case was lost to follow-up. Conclusion: Hepatic PEComa more commonly occurs in middle-aged women, with no specific features for tumor markers and clinical manifestations. Some imaging findings are specific, so its features can be combined as a basis for diagnosis. Postoperative pathological examination results can confirm the diagnosis. Therefore, surgery remains the initial treatment plan. Microwave ablation and laparoscopic surgery are recommended as the preferred option because of shorter hospital stays and less trauma than open surgery.
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Affiliation(s)
- B Liu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Hunan Normal Hospital of Hunan Normal University/Hunan Provincial People's Hospital,changsha 410005, China
| | - W Y Zhou
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Hunan Normal Hospital of Hunan Normal University/Hunan Provincial People's Hospital,changsha 410005, China
| | - Y T Xiao
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Hunan Normal Hospital of Hunan Normal University/Hunan Provincial People's Hospital,changsha 410005, China
| | - Y H Cheng
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Hunan Normal Hospital of Hunan Normal University/Hunan Provincial People's Hospital,changsha 410005, China
| | - Y H Ge
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Hunan Normal Hospital of Hunan Normal University/Hunan Provincial People's Hospital,changsha 410005, China
| | - S D Nie
- Clinical trial research Center, The First Affiliated Hospital of Hunan Normal Hospital of Hunan Normal University/Hunan Provincial People's Hospital, changsha 410005, China
| | - P Lyu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Hunan Normal Hospital of Hunan Normal University/Hunan Provincial People's Hospital,changsha 410005, China
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Yang SY, Li ST, Ying XH, Zhou WY, Wang N, Jiang QW, Fu CW. [Incidence and risk factors of metabolic syndrome in rural community population on islands in Zhejiang province]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:387-391. [PMID: 35345295 DOI: 10.3760/cma.j.cn112338-20210305-00175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To estimate the incidence of metabolic syndrome and explore possible risk factors for metabolic syndrome in adults of rural communities in Yuhuan county, Zhejiang province, China. Methods: During June-December, 2018, a follow-up survey was conducted in participants without metabolic syndrome at baseline survey in 2012 to obtain the information collected in questionnaire survey, anthropometric data and laboratory data. The incidence of metabolic syndrome in the participants was estimated, and Logistic regression model was used to explore the risk factors, adjusted risk ratio (aRR) and 95%CI. Results: Among 3 162 participants, 522 new metabolic syndrome cases were identified. The 6-year cumulative incidence rate of metabolic syndrome was 16.5%, and the cumulative incidence rate was higher in women (20.6%) than that in men (12.3%, P<0.001). Those incidence rates were higher in those in jobless, smoking or drinking groups. Being women (aRR=1.96, 95%CI: 1.50-2.58) and family history of hypertension (aRR=1.31, 95%CI: 1.04-1.63) were independent risk factors for metabolic syndrome. Conclusion: The follow up indicated that the incidence of metabolic syndrome was relatively high in rural adults on islands in Zhejiang, and women or those with family history of hypertension were more likely to have metabolic syndrome.
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Affiliation(s)
- S Y Yang
- School of Public Health/Key Laboratory of Public Health Safety, Ministry of Education/Key Laboratory of Health Technology Assessment, National Health and Health Commission, Fudan University, Shanghai 200032, China
| | - S T Li
- Yuhuan County Center for Disease Control and Prevention, Yuhuan 317600, China
| | - X H Ying
- Yuhuan County Center for Disease Control and Prevention, Yuhuan 317600, China
| | - W Y Zhou
- Yuhuan County Center for Disease Control and Prevention, Yuhuan 317600, China
| | - N Wang
- School of Public Health/Key Laboratory of Public Health Safety, Ministry of Education/Key Laboratory of Health Technology Assessment, National Health and Health Commission, Fudan University, Shanghai 200032, China
| | - Q W Jiang
- School of Public Health/Key Laboratory of Public Health Safety, Ministry of Education/Key Laboratory of Health Technology Assessment, National Health and Health Commission, Fudan University, Shanghai 200032, China
| | - C W Fu
- School of Public Health/Key Laboratory of Public Health Safety, Ministry of Education/Key Laboratory of Health Technology Assessment, National Health and Health Commission, Fudan University, Shanghai 200032, China
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Liu XY, Zhou WY, Wu W, He MR, Zheng DK, Ji GY, Ma WJ, Chen Y. [Serological screening and analysis of clinical characteristics for celiac disease in susceptible population in Southern China]. Zhonghua Nei Ke Za Zhi 2021; 60:539-543. [PMID: 34058810 DOI: 10.3760/cma.j.cn112138-20200715-00671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To determine the seroprevalence of celiac disease in susceptible population, and to analyze the relationship between demographic characteristics, dietary habits, lifestyle and serological positivity so as to provide guidance for the prevention and treatment of celiac disease in Southern China. Methods: A total of 1 273 individuals who participated in Guangdong Province Health Screening Program in 2015, were selected as serologically positive subjects of celiac disease, including people with irritable bowel syndrome, colitis, diarrhea, anemia, low BMI, short stature, type 1 diabetes mellitus (T1DM), rheumatoid arthritis (RA), ankylosing spondylitis, psoriasis and bristol grade=6 or 7. All subjects were tested for serum IgA anti-tissue transglutaminase antibodies (TTGA), IgA antibodies against deamidated gliadin peptides(DGPA) and IgG against deamidated gliadin peptides (DGPG). Dietary habits, lifestyle and demographic characteristics were compared in subgroups. Results: The seroprevalence of celiac disease in susceptible population was 0.94% (95%CI 0.54%-1.64%) including 0.08% (1/1 273) for TTGA, 0.47% (6/1 273) for DGPA, and 0.39% (5/1 273) for DGPG. The seropositive rate was 3.6% (1/28) in patients with psoriasis, 2.1% (2/95) in the low BMI group, 1.9% (1/53) in T1DM group, 1.8% (3/169) in diarrhea group and 1.1% (5/463) in RA group. No significant difference was found in age, gender, high carbohydrate diet or lifestyle between the negative and the positive subjects. Conclusions: In Southern China, the seropositive rate of celiac disease is 0.94% in susceptible population, which prompts an urgent need of serological screening for early diagnosis.
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Affiliation(s)
- X Y Liu
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - W Y Zhou
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - W Wu
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 510515, China
| | - M R He
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - D K Zheng
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - G Y Ji
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 510515, China
| | - W J Ma
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 510515, China
| | - Y Chen
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
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Zhong ZJ, Xu JF, Li ZZ, Zhou WY, Chen XX, Zhou JH, Li ZY. Regulation of HBV replication and gene expression by miR-501-3p via targeting ZEB2 in hepatocellular carcinoma. Neoplasma 2020; 67:735-742. [PMID: 32386477 DOI: 10.4149/neo_2020_190625n549] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 09/18/2019] [Indexed: 11/08/2022]
Abstract
This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause.
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Affiliation(s)
- Z J Zhong
- Department of Clinical Lab, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - J F Xu
- Department of Clinical Lab, The Zhuhai Hospital of Guangdong Province Traditional Chinese Medical Hospital, Zhuhai, China
| | - Z Z Li
- Department of Pathology, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - W Y Zhou
- Department of Centeral Laboratory, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - X X Chen
- Department of Medical Record Management, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China
| | - J H Zhou
- Department of Clinical Lab, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Z Y Li
- Department of Pathology, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
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Li ZY, Li ZZ, Zhou JH, Zhong ZJ, Wang XJ, Zhong L, Zhou WY. WITHDRAWN: LncRNA-LINC00261 suppresses the progression of NSCLC cells through upregulating miR-19a-mediated Kruppel-like factor 2 (KLF2). Neoplasma 2020:190706N600. [PMID: 32305053 DOI: 10.4149/neo_2020_190706n600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Accepted: 11/13/2019] [Indexed: 11/08/2022]
Abstract
Ahead of Print article withdrawn by publisher.
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Liu C, Wang JO, Zhou WY, Chang XY, Zhang MM, Zhang Y, Yang XH. Long non-coding RNA LINC01207 silencing suppresses AGR2 expression to facilitate autophagy and apoptosis of pancreatic cancer cells by sponging miR-143-5p. Mol Cell Endocrinol 2019; 493:110424. [PMID: 30991076 DOI: 10.1016/j.mce.2019.04.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [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: 10/13/2018] [Revised: 04/03/2019] [Accepted: 04/03/2019] [Indexed: 02/07/2023]
Abstract
Pancreatic cancer is a serious malignancy accompanied by a well-documented poor prognosis. Accumulating studies have indicated the crucial roles played by long non-coding RNAs (lncRNAs) in proliferation, apoptosis and invasion of cancer cells. The aim of the current study was to investigate the role of lncRNA LINC01207 in autophagy and apoptosis of pancreatic cancer cells and its regulatory mechanism interacting with miR-143-5p. Initially, expression profiles of lncRNAs and genes associated with pancreatic cancer were identified. The expression patterns of LINC01207, miR-143-5p and AGR2 in both pancreatic cancer and adjacent tissues were then determined. The binding relationship of LINC01207 to miR-143-5p and targeting relationship of miR-143-5p to AGR2 were subsequently verified. Silencing of LINC01207, or up-regulation or down-regulation of miR-143-5p was introduced into the pancreatic cancer cells, so as to analyze their effects on the cell growth, apoptosis and autophagy. Besides, these regulatory effects were further explored with the determination of the autophagy- and apoptosis-related gene or proteins. LINC01207 and AGR2 were highly expressed while miR-143-5p was poorly expressed in pancreatic cancer. Functionally, LINC01207 can bind to miR-143-5p, and AGR2 was a target gene of miR-143-5p. Importantly, silencing of LINC01207 down-regulated the expression of AGR2 by up-regulating miR-143-5p. Moreover, silencing of LINC01207 and up-regulation of miR-143-5p promoted cell apoptosis and autophagy, corresponding to increased expression of autophagy- and apoptosis-related proteins, in addition to inhibited cell growth. Taken together, silencing of LINC01207 prevents the progression of pancreatic cancer by impairing miR-143-5p-targeted AGR2 expression, providing a potential target for pancreatic cancer treatment.
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Affiliation(s)
- Chang Liu
- Department of Pathology, Shengjing Hospital of China Medical University, Shenyang, 110004, PR China
| | - Jin-Ou Wang
- Department of Pathology, Shengjing Hospital of China Medical University, Shenyang, 110004, PR China
| | - Wen-Yang Zhou
- Department of Pathology, Shengjing Hospital of China Medical University, Shenyang, 110004, PR China
| | - Xiao-Ying Chang
- Department of Pathology, Shengjing Hospital of China Medical University, Shenyang, 110004, PR China
| | - Ming-Ming Zhang
- Department of Pathology, Shengjing Hospital of China Medical University, Shenyang, 110004, PR China
| | - Ying Zhang
- Department of Pathology, Shengjing Hospital of China Medical University, Shenyang, 110004, PR China
| | - Xiang-Hong Yang
- Department of Pathology, Shengjing Hospital of China Medical University, Shenyang, 110004, PR China.
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Zhou WY, Zhang MM, Liu C, Kang Y, Wang JO, Yang XH. Long noncoding RNA LINC00473 drives the progression of pancreatic cancer via upregulating programmed death-ligand 1 by sponging microRNA-195-5p. J Cell Physiol 2019; 234:23176-23189. [PMID: 31206665 DOI: 10.1002/jcp.28884] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [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: 02/21/2019] [Revised: 05/08/2019] [Accepted: 05/09/2019] [Indexed: 12/25/2022]
Abstract
Pancreatic cancer (PC) is a great health burden to patients owing to its poor overall survival rate. Long noncoding RNAs (lncRNAs) interact with microRNAs (miRs) to participate in tumorigenesis. Therefore, we aim to uncover the role and related mechanism of LINC00473 in PC through the modulation of miR-195-5p and programmed death-ligand 1 (PD-L1). Increased LINC00473 and PD-L1 but declined miR-195-5p were determined in PC tissues and cell lines, and it was found that LINC00473 mainly situated in the cytoplasm. Also, miR-195-5p was verified to bind with both LINC00473 and PD-L1. Next, with the aim to examine the ability of LINC00473, miR-195-5p, and PD-L1 on the PC progression, the expression of LINC00473, miR-195-5p and PD-L1 were altered with mimics, inhibitors, overexpression vectors or siRNAs in PC cells and cocultured CD8+ T cells. It was demonstrated that LINC00473 sponged miR-195-5p to upregulate PD-L1 expression. More important, the obtained results revealed that LINC00473 silencing or miR-195-5p upregulation elevated the expression of Bcl-2 associated X protein (Bax), interferon (IFN)-γ, and interleukin (IL)-4 but reduced the expression of B-cell lymphoma-2 (Bcl-2), matrix metalloproteinase (MMP)-2, MMP-9, and IL-10, thus inducing the enhancement of the apoptosis as along with the inhibition of proliferation, invasion, and migration of the PC cells. LINC00473 silencing or miR-195-5p elevation activated the CD8+ T cells. Taken together, LINC00473 silencing blocked the PC progression through enhancing miR-195-5p-targeted downregulation of PD-L1. This finding offers new therapeutic options for treating this devastating disease.
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Affiliation(s)
- Wen-Yang Zhou
- Department of Pathology, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Ming-Ming Zhang
- Department of Pathology, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Chang Liu
- Department of Pathology, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Ye Kang
- Department of Pathology, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Jin-Ou Wang
- Department of Pathology, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Xiang-Hong Yang
- Department of Pathology, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
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Xu L, Tan HD, Liu LG, Liu XL, Huang J, Si S, Zhou WY, Sun YL, Yang ZY. [Diagnosis and treatment of pancreatic tuberculosis: experiences of 10 cases]. Zhonghua Jie He He Hu Xi Za Zhi 2019; 42:357-360. [PMID: 31137111 DOI: 10.3760/cma.j.issn.1001-0939.2019.05.008] [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
Objectives: To study the clinical characteristics of pancreatic tuberculosis, and therefore to improve the diagnosis and treatment of this disease. Methods: The clinical data of 10 patients with pancreatic tuberculosis form 1990 to 2017 were reviewed, including clinical characteristics, laboratory tests and imaging features. Results: The ten patients aged 28 to 71 (median 56) years. All of them presented varying degrees of abdominal pain and weight loss (3 to 8 kg). Hypo-echoic pancreatic masses were shown by abdominal ultra-sound in 7 cases, and cystic-solid masses with thick wall was shown by abdominal CT scan in 4 cases, but dilatation of the pancreatic duct was found in none of the 10 cases. Hemoglobin levels lower than 12 g/L were found in 6 cases, and ESR more than 20 mm/1 h was present in 7 cases. Four cases received PPD test, but only one was positive. CA19-9 was found to be higher than normal (27 IU/ml) in 3 cases (39.2 IU/ml, 125.7 IU/ml, 88.9 IU/ml respectively). Three cases received T-spot.TB tests, and all the results were positive. Seven cases received laparotomy, and the other 3 received endoscopic ultrasound-guided biopsy. Caseous necrosis and Langerhans cells were found in all the 10 cases. Nine patients were treated by 6 to 12 months' anti-tuberculosis therapies, and at 1-5 years' follow-up, 8 were cured and 1 improved. Conclusions: The manifestations of pancreatic tuberculosis were easy to be confused with other diseases, and therefore a comprehensive understanding of history and careful examinations were important for a correct diagnosis. Once the diagnosis was made, prompt standard anti-tuberculosis therapy could lead to a favorable outcome.
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Affiliation(s)
- L Xu
- Department of Hepatobiliary Surgery, China-Japan Friendship Hospital, Beijing 100029, China
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Huang J, Liu XL, Tan HD, Sun YL, Liu LG, Xu L, Si S, Zhou WY, Yang ZY. [The epidemiological and clinical characteristics of liver hemangioma in health adults]. Zhonghua Yi Xue Za Zhi 2018; 98:2925-2928. [PMID: 30293351 DOI: 10.3760/cma.j.issn.0376-2491.2018.36.010] [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 report the epidemiological and clinical characteristics of liver hemangioma in health adults from a large sample of Health Examination Database. Methods: A retrospective study was performed to analyze the epidemiological and clinical Characteristics of liver hemangioma from people who underwent examination in China-Japan friendship hospital from 2014 to 2016. The analysis was also included the relationship between gender or age and the incidence and tumor size. Results: A total of 83 964 healthy adults (age≥18) were included in the study. The overall incidence of liver hemangioma was 2.95%. There was no significant difference of liver hemangiomas incidence between male which was 3.03%, and which was 2.88% in female. Liver hemangiomas incidence had shown obviously increased with patients' age, as the evidence indicating that the prevalence of liver hemangioma in <30 age group was only 1.87%, and the prevalence of liver hemangioma in 41-50 age group raised to 3.72%. While the size of liver hemangioma in different genders was also increasing with age, the tumor size of liver hemangioma in <30 age group was the smallest. Under 50 years old, the size of female patients' liver hemangioma was larger than that of male patients in each age group. The size of female patients' liver hemangioma had obviously decreased over 60 years old. Conclusion: The progress of liver hemangioma was highly influenced by age and gender.
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Affiliation(s)
- J Huang
- Department of General Surgery, Ching-Japan Friendship Hospital, Beijing 100029, China
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15
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Zhou WY, Wang J, Yu SL, Wang DH, Zeng J, Zhang TJ, Yan Y, Zhang JT, Chen WX, Zhang CB. [Characterization and uncertainty evaluation of aqueous reference materials for cholesterol]. Zhonghua Yi Xue Za Zhi 2017; 97:3338-3342. [PMID: 29141382 DOI: 10.3760/cma.j.issn.0376-2491.2017.42.014] [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] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Objective: Characterization and evaluation of the uncertainty of the reference materials of cholesterol in aqueous solution. Methods: The certified reference material GBW09203b was weighed accurately and dissolved into methyl cyclodextrin aqueous solution to prepare six kinds of candidate reference materials of cholesterol according to the concentration. The materials were tested for homogeneity and stability using routine methods and were evaluated the uncertainty derived from the inhomogeneity and instability. The uncertainty due to measurement was derived from the purity of the raw material, the weighing and the density measurement. The certified values and expanded uncertainties were calculated according to the ISO Guide. The expanded uncertainty of the certified value was the combination of standard uncertainty of measurement, inhomogeneity and instability. The coverage factor, k, was determined from the Student's t-distribution corresponding to the calculated effective degrees of freedom and 95% level of confidence. Results: It showed that the six candidate reference materials were homogeneous and were tested to be stable for at least 1 year at -70 ℃ and -20 ℃ using the isochronous stability study. The relative uncertainties due to the inhomogeneity were 0.14%, 0.11%, 0.13%, 0.47%, 0.39% and 0.11%. The relative uncertainty due to the instability was 0.25% at -70 ℃. The uncertainties of measurement were 0.06%, 0.05%, 0.05%, 0.05%, 0.05% and 0.05%.The certified values (reference value ± expanded uncertainty, mmol/L) were as follows: (0.651±0.004), (1.310 ±0.007), (2.574±0.015), (5.210±0.055), (7.710±0.072), (10.242±0.056) mmol/L. Conclusions: Six kinds of certified reference materials for cholesterol in aqueous solution have been prepared, which were homogeneity, stable and reliable. It showed that the uncertainty of measurement was very small compared with the uncertainty due to inhomogeneity and instability.
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Affiliation(s)
- W Y Zhou
- National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology, Beijing 100730, China
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Qiu YY, Chen Y, Zeng TH, Guo WH, Zhou WY, Yang XJ. Hypoxia-induced apoptosis and mitochondrial dysfunction in chondrocytes arising from CREB phosphorylation reduction. Genet Mol Res 2016; 15:gmr7755. [PMID: 27323157 DOI: 10.4238/gmr.15027755] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Chondrocytes, which are embedded within the growth-plate or the intervertebral disc, are sensitive to environmental stresses, such as inflammation and hypoxia. However, little is known about the molecular signaling pathways underlying hypoxia-induced mitochondrial dysfunction and apoptosis in chondrocytes. We first examined the apoptosis, caspase-3 activity, and apoptosis-associated markers in human chondrocyte cell line C28/I2 under normoxia or hypoxia. We then investigated mitochondrial dysfunction and the activation of cyclic adenosine monophosphate response element-binding protein (CREB) signaling in the same human chondrocyte cell line. Our results indicated that hypoxia induced apoptosis and reduced CREB phosphorylation in chondrocytes. Upregulated mitochondrial superoxide and reactive oxygen species levels, and reduced mitochondrial membrane potential and complex IV activity were observed in hypoxia-treated C28/I2 cells. In conclusion, the present study confirmed reduced CREB phosphorylation, apoptosis induction, and mitochondrial dysfunction in the hypoxia-treated chondrocyte cells. This implies the key role played by CREB signaling in hypoxia-induced mitochondrial dysfunction and apoptosis in chondrocytes.
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Affiliation(s)
- Y Y Qiu
- Department of Spine Surgery, The 2nd Shenzhen People's Hospital, Shenzhen, China
| | - Y Chen
- Department of Spine Surgery, The 2nd Shenzhen People's Hospital, Shenzhen, China
| | - T H Zeng
- Department of Spine Surgery, The 2nd Shenzhen People's Hospital, Shenzhen, China
| | - W H Guo
- Department of Spine Surgery, The 2nd Shenzhen People's Hospital, Shenzhen, China
| | - W Y Zhou
- Department of Spine Surgery, The 2nd Shenzhen People's Hospital, Shenzhen, China
| | - X J Yang
- Department of Spine Surgery, The 2nd Shenzhen People's Hospital, Shenzhen, China
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Chen J, Liu M, Li LL, Ke JT, Zhou WY, Huang D, Wu W. ASSA14-03-02 Protective Effects of Paeoniflorin against Myocardial Fibrosis in Isoprenaline-induced Chronic Heart Failure Rats. Heart 2015. [DOI: 10.1136/heartjnl-2014-307109.21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Liu SY, Nie XZ, Zhou WY, Chen J. Expression and effect of TLR4 in rats with diabetic nephropathy. ASIAN PAC J TROP MED 2014; 6:635-9. [PMID: 23790335 DOI: 10.1016/s1995-7645(13)60109-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Revised: 06/15/2013] [Accepted: 07/15/2013] [Indexed: 11/26/2022] Open
Abstract
OBJECTIVE To observe the expression of TLR4 in kidney tissue of rats with diabetic nephropathy and discuss the role of TLR4 in the occurrence and development of the diabetic nephropathy. METHODS A total of 60 clean male SD rats were selected and randomly divided into the modeling group and control group after 1 week of breeding, including 30 rats in each group. Biochemical indices as well as the protein expression of TLR4 were observed and compared between two groups at 2 w, 4 w, 6 w, 8 w and 12 w after the modeling, and the correlation between TLR4 and each biochemical indexes was analyzed. RESULTS Rats in the modeling group had higher levels of blood glucose, 24-hour urine protein and blood urea nitrogen after the modeling, and showed the increase in the serum creatinine, kidney/body weight ratio, CRP and serum TNF-α at 4w after the modeling, with the significant difference compared to results of the control group (P<0.05). The cross-section area and mean volume of glomerulus in the modeling group at 4 w, 6 w, 8 w and 12 w were significantly higher than those in the control group, with the statistically significant difference (P<0.05). The expression of TLR4 at each time point in the control group was relatively low. Rats in the modeling group had the high expression of TLR4 in kidney's glomerular basement membrane, proximal convoluted tubule and renal interstitial area since 2 w, with the significant difference compared to the control group (P<0.05). The expression in rats of the modeling group was higher than the one of the control group since the 2nd week. As the time flied, its expression increased, with the statistically significant difference between two groups (P<0.05). There was certain correlation between the protein expression of TLR4 and the increased serum titer of 24-hour urine protein excretion, serum creatinine, CRP and TNF-α. CONCLUSIONS TLR4 may activate the immuno-inflammatory reactions to play a role in the occurrence and development of the diabetic nephropathy.
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Affiliation(s)
- Si-Yang Liu
- Department of Orthopaedics, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
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Zhang XX, Zhao D, Gao M, Dong HB, Zhou WY, Xie SS. Site-specific multi-stage CVD of large-scale arrays of ultrafine ZnO nanorods. Nanotechnology 2011; 22:135603. [PMID: 21343640 DOI: 10.1088/0957-4484/22/13/135603] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Multi-stage growth of ZnO nanorod arrays has been carried out by Au-assisted chemical vapor deposition (CVD) in order to better understand and more precisely control the growth behaviors. It is evidenced that Au-catalyzed vapor-liquid-solid (VLS) growth only dominates the initial site-specific nucleation of the nanorods, while the subsequent growth is governed by a vapor-solid (VS) epitaxy mechanism. The sequential VLS and VS behaviors permit the fabrication of large-scale highly ordered arrays of ZnO nanorods with precisely tunable diameters and embedded junctions by controlling reactant concentration and nanorod top morphology. Based on the above results, two routes to fabricate ultrafine ZnO nanorod arrays are proposed and stepwise nanorod arrays with ultrafine top segment (~10 nm in diameter) have been achieved. Temperature-dependent photoluminescence (PL) and spatial resolved PL were carried out on the nanorod arrays and on individual nanorods, indicating high quality optical properties and tunable light emission along the length of the stepwise nanorods.
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Affiliation(s)
- X X Zhang
- Key Laboratory for the Physics and Chemistry of Nanodevices and Department of Electronics, Peking University, Beijing 100871, People's Republic of China
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Zhou WY, Wang M, Cheung WL, Guo BC, Jia DM. Synthesis of carbonated hydroxyapatite nanospheres through nanoemulsion. J Mater Sci Mater Med 2008; 19:103-10. [PMID: 17577636 DOI: 10.1007/s10856-007-3156-9] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2006] [Accepted: 08/22/2006] [Indexed: 05/15/2023]
Abstract
This study investigated the nanoemulsion technique as a means to synthesize carbonated hydroxyapatite (CHAp) nanospheres which could be used to produce composite tissue engineering scaffolds. CHAp nanospheres were successfully synthesized by mixing an acetone solution of Ca(NO(3))(2).4H(2)O with an aqueous solution of (NH(4))(2)HPO(4) and NH(4)HCO(3). Four reaction temperatures, namely, 4, 25, 37 and 55 degrees C, were investigated and no surfactant was added in all nanoemulsion processes. Wet slurries of CHAp from the nanoemulsions were freeze-dried to obtain dry powders. X-ray diffraction (XRD) results showed that the as-synthesized CHAp nanoparticles were mainly in an amorphous state. After calcination at 900 degrees C, the apatite became well crystallized. Fourier transform infrared (FTIR) spectroscopy showed that the CHAp was B-type substitution. Both scanning electron microscopy (SEM) and transmission electron microscopy (TEM) revealed that the CHAp particles were spherical in shape and that their sizes were in the nanometer range. The successful synthesis of CHAp nanospheres is a critical step forward in our efforts to fabricate bone tissue engineering scaffolds using the selective laser sintering technology.
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Affiliation(s)
- W Y Zhou
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, Hong Kong, China
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Zhu H, Zhou WY, Xu M, Shen YL, Wei DZ. Molecular characterization of Serratia marcescens strains by RFLP and sequencing of PCR-amplified 16S rDNA and 16S-23S rDNA intergenic spacer. Lett Appl Microbiol 2007; 45:174-8. [PMID: 17651214 DOI: 10.1111/j.1472-765x.2007.02166.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
AIMS To establish the specific DNA patterns in 16S rDNA and 16S-23S rDNA intergenic spacer (IGS) regions from different kinds of Serratia marcescens strains using polymerase chain reaction (PCR), restriction fragment length polymorphism (RFLP) and sequences analysis. METHODS AND RESULTS Two pairs of primers based on the 16S rDNA and 16S-23S rDNA IGS were applied to amplify the rrn operons of two kinds of S. marcescens strains. About 1500 bp for 16S rDNA and four fragments of different sizes for 16S-23S rDNA IGS were obtained. PCR-amplified fragments were analysed by RFLP and sequence analysis. Two distinct restriction patterns revealing three to five bands between two kinds of strains were detected with each specific enzyme. According to the sequence analysis, two kinds of strains showed approximately 97% sequence homology of 16S rDNA. However, there was much difference in the sequences of IGS between the two kinds of strains. Intercistronic tRNA of strains H3010 and A3 demonstrated an order of tRNA of 5'-16S-tRNA(Ala)-tRNA(Ile)-23S-3', but strain B17 harboured the tRNA of 5'-16S-tRNA(Glu)-tRNA(Ile)-23S-3'. CONCLUSIONS The method was specific, sensitive and accurate, providing a new technique for differentiating different strains from the same species. SIGNIFICANCE AND IMPACT OF THE STUDY This paper provided the first molecular characterization of 16S rDNA and 16S-23S rDNA IGS from S. marcescens strains.
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Affiliation(s)
- H Zhu
- State Key Laboratory of Bioreactor Engineering, New World Institute of Biotechnology, East China University of Science and Technology, Shanghai, P.R. China
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Zhou ZM, Fang CH, Huang LW, Zhong SZ, Wang BL, Zhou WY. Three dimensional reconstruction of the pancreas based on the virtual Chinese human--female number 1. Postgrad Med J 2006; 82:392-6. [PMID: 16754708 PMCID: PMC2563754 DOI: 10.1136/pgmj.2005.039230] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVE To study the three dimensional (3D) reconstruction and 3D visualisation of the pancreas and create anatomy of the digitalised visual pancreas so as to construct a concrete basis for virtual operation and surgical operation on pancreas. METHODS The digital imaging data of pancreas, duodenum, common bile duct, arteries, and veins were obtained from the virtual Chinese human--female 1 (VCH-F1). The image data were investigated and 380 images ascertained of pancreas picked up from images numbers 2617 to 2996. Finally, the images from number 2574 to 3017 were adopted to segment and processed using ACDSee and Photoshop so as to reconstruct 3D pancreas digitally. The data of pancreatic surfaces were transformed into Visualization Toolkit (VTK). The GUI program written with VC+ was used to display this VTK file and realise 3D visualisation of the pancreas. RESULTS 3D reconstruction and visualisation of the pancreas and the peri-pancreatic structures (the duodenum, the common bile duct,the inferior vena cava, the portal vein vessels, the aorta, the coeliac trunk vessels) was successful. The 3D and visualised pancreas manifested itself with its complete structure as well as its adjacency to other tissues. CONCLUSION The 3D reconstruction and 3D visualisation of the pancreas based on the digital data of VCH-F1 produces a digitally visualised pancreas, which promises a novel method for virtual operation on the pancreas, clinical operation on the pancreas, and anatomy of 3D visualised pancreas.
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Affiliation(s)
- Z M Zhou
- Department of Hepatobiliary Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
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Liu DF, Xiang YJ, Wu XC, Zhang ZX, Liu LF, Song L, Zhao XW, Luo SD, Ma WJ, Shen J, Zhou WY, Wang G, Wang CY, Xie SS. Periodic ZnO nanorod arrays defined by polystyrene microsphere self-assembled monolayers. Nano Lett 2006; 6:2375-8. [PMID: 17034114 DOI: 10.1021/nl061399d] [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] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
We demonstrate a low-cost and effective method to fabricate hexagonally patterned, vertically aligned ZnO nanorod arrays. Selective wet-etching is used to develop the catalyzing gold particle hexagonal pattern with the aid of a polystyrene microsphere self-assembled monolayer. The gold particles have tunable sizes independent of the polystyrene microsphere's diameter and are inherently round in shape. Each ZnO rod is grown individually from a catalyzing site via catalyst-initiated epitaxy, and the original hexagonal periodicity is well-preserved. The rods have flat ends, and the diameters of the rods can be controlled well by the amount of source materials. This method provides a promising way to create ZnO one-dimensional nanostructures for applications as two-dimensional photonic crystal, sensor arrays, nanolaser arrays, and optoelectronic devices.
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Affiliation(s)
- D F Liu
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Graduate School of the Chinese Academy of Sciences, Beijing 100080, P R China
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Ye JJ, Hu TS, Zhang CF, Wang ZH, Zhou WY. [Diagnosis and treatment of Sturge-Weber syndrome associated with retinal detachment]. Zhongguo Yi Xue Ke Xue Yuan Xue Bao 2001; 23:408-11. [PMID: 12940090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
Abstract
OBJECTIVE To access the diagnosis and treatment of Sturge-Weber syndrome at late stage. METHODS The male patient aged 65 visited the eye clinic with presenting symptom of visual loss of the left eye for 2 months. Ocular examination disclosed a facial hemangioma with the size of 2 cm x 3 cm on the nasal side of the left upper eyelid associated with engorged bulbar conjunctival and episcleral vessels in the upper nasal quadrant. Ophthalmoscopy revealed total detachment of the retina. Esotropia was measured as 10 degrees. Intraocular pressure was 24 mmHg. Electroretinogram (ERG) demonstrated an indistinguished pattern. Posterior trans-scleral and ciliary body cryocoagulation was applied followed by external release of the subretinal fluid. RESULTS The retina became reattached with visual acuity of 0.3 and intraocular pressure was 15 mmHg of the left eye at 5 months postoperatively. Fluorescein angiographical findings were consistent with diffuse hemangioma of the choroid. Follow-up study for 6 years revealed that the retina remained attached with visual acuity of 0.8 and essentially normal electroretinogram. CONCLUSION The small facial hemangioma was the clue for the diagnosis of Sturge-Weber syndrome and cryocoagulation was the procedure of choice for the treatment of retinal detachment with favorable visual outcome.
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Affiliation(s)
- J J Ye
- Department of Ophthalmology, PUMC Hospital, CAMS and PUMC, Beijing 100730, China.
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Affiliation(s)
- L F Sun
- Institute of Physics, Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing
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Jiang KY, Ruan CG, Gu ZL, Zhou WY, Guo CY. Effects of tanshinone II-A sulfonate on adhesion molecule expression of endothelial cells and platelets in vitro. Zhongguo Yao Li Xue Bao 1998; 19:47-50. [PMID: 10375758] [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: 02/12/2023]
Abstract
AIM To study the action of tanshinone II-A sulfonate (Tan) on adhesion molecule expression by cultured endothelial cells and platelets. METHODS Tumor necrosis factor alpha (TNF-alpha)-induced ICAM-1 expression on the cell surface and endothelial adhesivity toward HL-60 cells were studied using human umbilical vein endothelial cells (HUVEC). Thrombin-induced expression of platelet P-selectin was studied using human blood platelets. Adhesion molecule expression on the cell surface was measured by flow cytometry. The number of HL-60 cells adhering to the HUVEC monolayer was determined by liquid scintillation spectroscopy. RESULTS Pretreatment of HUVEC with TNF-alpha significantly enhanced ICAM-1 expression and increased HL-60 cells adhesion to HUVEC from 4.6% +/- 0.7% to 30% +/- 6%. Tan (25-200 mumol.L-1) inhibited the effects of TNF-alpha in a concentration-dependent manner. Tan also inhibited the increase of P-selectin expression of thrombin-activated platelets in a concentration-dependent manner. CONCLUSION Tan inhibited expression of adhesion molecules (ICAM-1, P-selectin) in HUVEC and in human blood platelets.
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Affiliation(s)
- K Y Jiang
- Department of Pharmacology, Suzhou Medical College, China
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Xie SS, Li WZ, Qian LX, Chang BH, Fu CS, Zhao RA, Zhou WY, Wang G. Equilibrium shape equation and possible shapes of carbon nanotubes. Phys Rev B Condens Matter 1996; 54:16436-16439. [PMID: 9985763 DOI: 10.1103/physrevb.54.16436] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Abstract
Large-scale synthesis of aligned carbon nanotubes was achieved by using a method based on chemical vapor deposition catalyzed by iron nanoparticles embedded in mesoporous silica. Scanning electron microscope images show that the nanotubes are approximately perpendicular to the surface of the silica and form an aligned array of isolated tubes with spacings between the tubes of about 100 nanometers. The tubes are up to about 50 micrometers long and well graphitized. The growth direction of the nanotubes may be controlled by the pores from which the nanotubes grow.
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Affiliation(s)
- WZ Li
- W. Z. Li, S. S. Xie, B. H. Chang, B. S. Zou, W. Y. Zhou, R. A. Zhao, G. Wang, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China. L. X. Qian, Department of Physics, Central University of Nationalities, Beijing 100081, China
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Zhao SY, Zhou LY, Zhou WY, Yang ZL, Zhong YN. A comparative study of detection of hepatitis E virus RNA by RT-PCR and digoxin probe techniques. Kansenshogaku Zasshi 1996; 70:485-9. [PMID: 8699097 DOI: 10.11150/kansenshogakuzasshi1970.70.485] [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: 02/01/2023]
Abstract
Techniques for detecting hepatitis E virus nucleic acid by RT-PCR and digoxin probe spot hybridization tests were developed. The examination by RT-PCR test of 250 stored stool specimens from patients with acute hepatitis E gave a positive rate of 40.9% and was positive in one stool specimen collected 28 days after the patient had contracted the illness. Serologic examination yielded a positive rate of 66.7%, and also utilizing the DIG probe labelled with PCR product it was 66.6%. RT-PCR with the digoxin probe proved to be suitable for clinical diagnosis and basic research on hepatitis E.
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Affiliation(s)
- S Y Zhao
- Department of Infectious Diseases, People's General Hospital of Xinjiang, P.R. China
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Xu DZ, Zhou WY, Zou HK, Chen YJ. Etiological types and clinical and epidemiological features of acute viral hepatitis in Xi'an in China. J Med Virol 1987; 21:283-7. [PMID: 3104534 DOI: 10.1002/jmv.1890210312] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The etiological types and some features of 163 in-patients with acute viral hepatitis in Xi'an in China are reported. Hepatitis A (HA) accounted for 89.2% in the age group 0-15 years, whereas hepatitis B (HB) mainly occurred at the age of 16 to 30 and non-A, non-B hepatitis 31 to 50. This is different from the age distribution in western countries. The cause of the difference is discussed. The transmission factors of NANB hepatitis might be different from those of HA and HB. Fever was more often seen in HA than in HB and NANB, while the maximal bilirubin was higher in HB than in NANB. Hepatic dysfunction of all three types of hepatitis seemed to be closely associated with the age of the patients. Of ten cases with fulminant hepatitis, none was due to hepatitis A; nine were adults.
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Qiu CC, Zhou WY, Huang YW, Wang RX, Zhang NJ. [Immunologic studies on hemoglobin Bart's: I. Preparation and determination of an antibody against Hb Bart's]. Zhongguo Yi Xue Ke Xue Yuan Xue Bao 1985; 7:169-72. [PMID: 2939968] [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: 01/03/2023]
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