1
|
Lin JX, Chen LL, Han B, Chen S, Li WR, Jin ZL, Fang B, Bai YX, Wang L, Wang J, He H, Liu YH, Hu M, Song JL, Cao Y, Sun YN, Liu XM, Zhang JN, Zhang YF. [Technical specification for orthodontic transmission straight wire technique]. Zhonghua Kou Qiang Yi Xue Za Zhi 2023; 58:1217-1226. [PMID: 38061863 DOI: 10.3760/cma.j.cn112144-20230811-00066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Malocclusion is an oral disease with a high prevalence. The goal of orthodontic treatment is health, aesthetics, function and stability. The transmission straight wire appliance and technique is an innovative orthodontic system with independent intellectual property rights invented by Professor Jiuxiang Lin's team based on decades of clinical experience, which provides a new solution for the non-surgical correction of skeletal malocclusions, especially class Ⅲ malocclusion, and it is also a good carrier for the implementation of the concept of healthy orthodontics. Due to the lack of guidelines, how to implement standardized application of transmission straight wire technique remains a problem to be solved. This technical specification was formed by combining the guidance from Professor Jiuxiang Lin and joint revision by a number of authoritative experts from the Orthodontic Special Committee, Chinese Stomatological Association, with reference to relevant literatures, and combined with abundant clinical experience of many experts. This specification aims to provide reference to standardize the clinical application of transmission straight wire technique, so as to reduce the risk and complications, and finally to improve the clinical application level of this technique.
Collapse
Affiliation(s)
- J X Lin
- Department of Orthodontics, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - L L Chen
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology & School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology & Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan 430022, China
| | - B Han
- Department of Orthodontics, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - S Chen
- Department of Orthodontics, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - W R Li
- Department of Orthodontics, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - Z L Jin
- Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Xi'an 710032, China
| | - B Fang
- Department of Orthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine & College of Stomatology, Shanghai Jiao Tong University & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai 200011, China
| | - Y X Bai
- Department of Orthodontics, Capital Medical University School of Stomatology, Beijing 100050, China
| | - L Wang
- Department of Orthodontics, The Affiliated Stomatological Hospital of Nanjing Medical University & Jiangsu Province Key Laboratory of Oral Diseases & Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing 210029, China
| | - J Wang
- Department of Orthodontics, West China Hospital of Stomatology, Sichuan University & State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, Chengdu 610041, China
| | - H He
- Department of Orthodontics Division 1, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, China
| | - Y H Liu
- Department of Orthodontics, Shanghai Stomatological Hospital & School of Stomatology, Fudan University & Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Fudan University, Shanghai 200001, China
| | - M Hu
- Department of Orthodontics, Hospital of Stomatology, Jilin University, Jilin 130021, China
| | - J L Song
- Department of Orthodontics, Stomatological Hospital of Chongqing Medical University & Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences & Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - Y Cao
- Department of Orthodontics, Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University & Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
| | - Y N Sun
- Department of Orthodontics, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - X M Liu
- Department of Orthodontics, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - J N Zhang
- Department of Orthodontics, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - Y F Zhang
- Department of Orthodontics, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| |
Collapse
|
2
|
Che YL, Xu ZN, Wang N, Ma QZ, Zheng ZY, Sun YN, Wang JT. [Analysis of nasal microbial characteristics in patients with allergic rhinitis and non-allergic rhinitis]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2023; 58:885-891. [PMID: 37675527 DOI: 10.3760/cma.j.cn115330-20221012-00605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 09/08/2023]
Abstract
Objective: To investigate the characteristics of nasal flora and the pathogenic role of differential microbiome in patients with allergic rhinitis (AR) and non-allergic rhinitis (nAR). Methods: Thirty-five patients with AR who attended the rhinology outpatient clinic of the Second Hospital of Harbin Medical University from February to July 2022 were selected. A total of 35 nAR patients were selected as the test group, and 20 cases of healthy people with physical examination at the same period were selected as the control group, including 39 males and 51 females, aged 8 to 55 years. 16SrDNA High-throughput sequencing was used to analyze the relative abundance from nasal flora in the three groups of subjects. Alpha diversity index analysis was conducted with R software, and differences between groups were analyzed with LEfSe, Metastats, and t tests. At the same time, the role of microbiome and its relationship with environmental factors were analyzed with R software. Results: There was a significant difference in the bacterial composition of the samples from the three groups, with the relative abundance of Staphylococcus aureus (P=0.032) and Corynebacterium proinquum (P=0.032) within the AR group being significantly higher than that of the nAR group, and that of Lactobacillus murinus, Lactobacillus kunkeei, and Alcaligenes faecalis (P value was 0.016, 0.005, and 0.001, respectively) being significantly lower than that of the nAR group. The relative abundance of Ackermannia muciniphila within the nAR group was higher than that of the control group (P=0.009). Correlation analysis of environmental factors showed a negative correlation between Lactobacillus kunkeei and IgE (P=0.044), and a positive correlation between Lactobacillus murinus and age (P=0.019). AR and nAR random forest prediction models were constructed for the five genera, respectively, and the area under the curve (AUC) of the models of Streptococcus-SP-FF10, Pseudoalteromonas luteoviolacea, Pseudomonas parafulva, Acinetobacter ursingii, and Azotobacter chroococcum in the AR group was 100% (95%CI: 100% to 100%). The AUC for the Pseudomonas parafulva, Azotobacter chroococcum, Closoridium baratii, Turicibacter-SP-H121, and Streptococcus lutetiensis models in the nAR group was 98.4% (95%CI: 94.9% to 100%). Conclusions: The distribution of nasal flora in AR patients, nAR patients and healthy subjects is significantly different, and the changes of bacterial flora abundance are significantly related to the occurrence of AR and nAR. Combined detection of microbiota has the potential to diagnose AR and nAR patients.
Collapse
Affiliation(s)
- Y L Che
- Department of Otorhinolaryngology Head and Neck Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China
| | - Z N Xu
- Department of Otorhinolaryngology Head and Neck Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China
| | - N Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China
| | - Q Z Ma
- Department of Otorhinolaryngology Head and Neck Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China
| | - Z Y Zheng
- Department of Otorhinolaryngology Head and Neck Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China
| | - Y N Sun
- Department of Otorhinolaryngology Head and Neck Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China
| | - J T Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China
| |
Collapse
|
3
|
Yang YC, Shen Y, Wang XD, Jiang Y, Qiu QH, Li J, Yu SQ, Ke X, Liu F, Xu YT, Lou HF, Wang HT, Yu GD, Xu R, Meng J, Meng CD, Sun N, Chen JJ, Zeng M, Xie ZH, Sun YQ, Tang J, Zhao KQ, Zhang WT, Shi ZH, Xu CL, Yang YL, Lu MP, Ye HP, Wei X, Sun B, An YF, Sun YN, Gu YR, Zhang TH, Ba L, Yang QT, Ye J, Xu Y, Li HB. [Expert consensus on the prevention and treatment of adverse reactions in subcutaneous immunotherapy(2023, Chongqing)]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2023; 58:643-656. [PMID: 37455109 DOI: 10.3760/cma.j.cn115330-20221111-00679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Subscribe] [Scholar Register] [Indexed: 07/18/2023]
Affiliation(s)
- Y C Yang
- Department of Otolaryngology Head and Neck Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Y Shen
- Department of Otolaryngology Head and Neck Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - X D Wang
- Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Y Jiang
- Department of Otolaryngology Head and Neck Surgery, the Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - Q H Qiu
- Department of Otolaryngology Head and Neck Surgery, Guangdong Provincial People's Hospital, Guangzhou 510080, China
| | - J Li
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China, Guangxi Hospital Division of The First Affiliated Hospital, Sun Yat-sen University, Nanning 530029, China
| | - S Q Yu
- Department of Otolaryngology Head and Neck Surgery, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China
| | - X Ke
- Department of Otolaryngology Head and Neck Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - F Liu
- Department of Otolaryngology Head and Neck Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Y T Xu
- Department of Otolaryngology Head and Neck Surgery, the First Affiliated Hospital of Fujian Medical University, Fuzhou 350004, China
| | - H F Lou
- Department of Otorhinolaryngology Head and Neck Surgery, Eye, Ear, Nose and Throat Hospital, Shanghai Medical College, Fudan University, Shanghai 200031, China
| | - H T Wang
- Department of Allergy, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China
| | - G D Yu
- Department of Otorhinolaryngology, Affiliated Hospital of Guizhou Medical University, Guiyang 550001, China
| | - R Xu
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China, Guangxi Hospital Division of The First Affiliated Hospital, Sun Yat-sen University, Nanning 530029, China
| | - J Meng
- Department of Otolaryngology Head and Neck Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - C D Meng
- Department of Otolaryngology Head and Neck Surgery, China Japan Union Hospital of Jilin University, Changchun 130033, China
| | - N Sun
- Department of Otolaryngology, Huadong Hospital, Fudan University, Shanghai 200040, China
| | - J J Chen
- Department of Otolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - M Zeng
- Department of Otolaryngology, Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Z H Xie
- Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Y Q Sun
- Department of Otolaryngology, the Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen 518170, China
| | - J Tang
- Department of Otorhinolaryngology, Affiliated First People's Hospital of Foshan City, Sun Yat-sen University, Foshan 528000, China
| | - K Q Zhao
- Department of Otorhinolaryngology Head and Neck Surgery, Eye, Ear, Nose and Throat Hospital, Shanghai Medical College, Fudan University, Shanghai 200031, China
| | - W T Zhang
- Department of Otolaryngology Head and Neck Surgery, the Sixth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Z H Shi
- Department of Otolaryngology Head and Neck Surgery and Department of Allergy, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - C L Xu
- Department of Otolaryngology Head and Neck Surgery, the Second Affiliated Hospital of Guangxi Medical University, Nanning 530007, China
| | - Y L Yang
- Department of 1st Otolaryngology, the First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - M P Lu
- Department of Otolaryngology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - H P Ye
- Department of Otolaryngology, Guizhou Province Hospital, Guiyang 550002, China
| | - X Wei
- Department of Otorhinolaryngology Head and Neck Surgery, Hainan General Hospital, Haikou 570311, China
| | - B Sun
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Y F An
- Department of Otorhinolaryngology Head and Neck Surgery, Shanxi Medical University Affiliated Second Hospital, Taiyuan 030001, China
| | - Y N Sun
- Department of Otolaryngology Head and Neck Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Y R Gu
- Department of Otorhinolaryngology Head and Neck Surgery, Eye, Ear, Nose and Throat Hospital, Shanghai Medical College, Fudan University, Shanghai 200031, China
| | - T H Zhang
- Department of Otolaryngology Head and Neck Surgery, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - L Ba
- Department of Otolaryngology Head and Neck Surgery, People's Hospital of Tibet Autonomous Region, Lasa 850000, China
| | - Q T Yang
- Department of Otolaryngology Head and Neck Surgery and Department of Allergy, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - J Ye
- Department of Otolaryngology Head and Neck Surgery, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Y Xu
- Department of Otolaryngology, Head and Neck Surgery, Renmin Hospital, Wuhan University, Wuhan 430060, China
| | - H B Li
- Department of Otorhinolaryngology Head and Neck Surgery, Eye, Ear, Nose and Throat Hospital, Shanghai Medical College, Fudan University, Shanghai 200031, China
| |
Collapse
|
4
|
Liu MF, Ma RX, Cao XB, Zhang H, Zhou SH, Jiang WH, Jiang Y, Sun JW, Yang QT, Li XZ, Sun YN, Shi L, Wang M, Song XC, Chen FQ, Zhang XS, Wei HQ, Yu SQ, Zhu DD, Ba L, Cao ZW, Xiao XP, Wei X, Lin ZH, Chen FH, Shan CG, Wang GK, Ye J, Qu SH, Zhao CQ, Wang ZL, Li HB, Liu F, Cui XB, Ye SN, Liu Z, Xu Y, Cai X, Hang W, Zhang RX, Zhao YL, Yu GD, Shi GG, Lu MP, Shen Y, Zhao YT, Pei JH, Xie SB, Yu LG, Liu YH, Gu SS, Yang YC, Cheng L, Liu JF. [Incidence and prognosis of olfactory and gustatory dysfunctions related to infection of SARS-CoV-2 Omicron strain: a national multi-center survey of 35 566 population]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2023; 58:579-588. [PMID: 37339898 DOI: 10.3760/cma.j.cn115330-20230316-00117] [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: 06/22/2023]
Abstract
Objective: This cross-sectional investigation aimed to determine the incidence, clinical characteristics, prognosis, and related risk factors of olfactory and gustatory dysfunctions related to infection with the SARS-CoV-2 Omicron strain in mainland China. Methods: Data of patients with SARS-CoV-2 from December 28, 2022, to February 21, 2023, were collected through online and offline questionnaires from 45 tertiary hospitals and one center for disease control and prevention in mainland China. The questionnaire included demographic information, previous health history, smoking and alcohol drinking, SARS-CoV-2 vaccination, olfactory and gustatory function before and after infection, other symptoms after infection, as well as the duration and improvement of olfactory and gustatory dysfunction. The self-reported olfactory and gustatory functions of patients were evaluated using the Olfactory VAS scale and Gustatory VAS scale. Results: A total of 35 566 valid questionnaires were obtained, revealing a high incidence of olfactory and taste dysfunctions related to infection with the SARS-CoV-2 Omicron strain (67.75%). Females(χ2=367.013, P<0.001) and young people(χ2=120.210, P<0.001) were more likely to develop these dysfunctions. Gender(OR=1.564, 95%CI: 1.487-1.645), SARS-CoV-2 vaccination status (OR=1.334, 95%CI: 1.164-1.530), oral health status (OR=0.881, 95%CI: 0.839-0.926), smoking history (OR=1.152, 95%CI=1.080-1.229), and drinking history (OR=0.854, 95%CI: 0.785-0.928) were correlated with the occurrence of olfactory and taste dysfunctions related to SARS-CoV-2(above P<0.001). 44.62% (4 391/9 840) of the patients who had not recovered their sense of smell and taste also suffered from nasal congestion, runny nose, and 32.62% (3 210/9 840) suffered from dry mouth and sore throat. The improvement of olfactory and taste functions was correlated with the persistence of accompanying symptoms(χ2=10.873, P=0.001). The average score of olfactory and taste VAS scale was 8.41 and 8.51 respectively before SARS-CoV-2 infection, but decreased to3.69 and 4.29 respectively after SARS-CoV-2 infection, and recovered to 5.83and 6.55 respectively at the time of the survey. The median duration of olfactory and gustatory dysfunctions was 15 days and 12 days, respectively, with 0.5% (121/24 096) of patients experiencing these dysfunctions for more than 28 days. The overall self-reported improvement rate of smell and taste dysfunctions was 59.16% (14 256/24 096). Gender(OR=0.893, 95%CI: 0.839-0.951), SARS-CoV-2 vaccination status (OR=1.334, 95%CI: 1.164-1.530), history of head and facial trauma(OR=1.180, 95%CI: 1.036-1.344, P=0.013), nose (OR=1.104, 95%CI: 1.042-1.171, P=0.001) and oral (OR=1.162, 95%CI: 1.096-1.233) health status, smoking history(OR=0.765, 95%CI: 0.709-0.825), and the persistence of accompanying symptoms (OR=0.359, 95%CI: 0.332-0.388) were correlated with the recovery of olfactory and taste dysfunctions related to SARS-CoV-2 (above P<0.001 except for the indicated values). Conclusion: The incidence of olfactory and taste dysfunctions related to infection with the SARS-CoV-2 Omicron strain is high in mainland China, with females and young people more likely to develop these dysfunctions. Active and effective intervention measures may be required for cases that persist for a long time. The recovery of olfactory and taste functions is influenced by several factors, including gender, SARS-CoV-2 vaccination status, history of head and facial trauma, nasal and oral health status, smoking history, and persistence of accompanying symptoms.
Collapse
Affiliation(s)
- M F Liu
- Graduate School of Beijing University of Chinese Medicine, Beijing 100029, China Department of Otorhinolaryngology Head and Neck Surgery, China-Japan Friendship Hospital, Beijing 100029, China
| | - R X Ma
- Department of Otorhinolaryngology Head and Neck Surgery, the First People's Hospital of Yinchuan, Yinchuan 750001, China
| | - X B Cao
- Department of Otorhinolaryngology, the First People's Hospital of Yunnan Province, Kunming 650100, China
| | - H Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| | - S H Zhou
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310003, China
| | - W H Jiang
- Department of Otorhinolaryngology Head and Neck Surgery, Xiangya Hospital Central South University, Changsha 410008, China
| | - Y Jiang
- Department of Otorhinolaryngology Head and Neck Surgery, the Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - J W Sun
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of USTC, Hefei 230001, China
| | - Q T Yang
- Department of Otorhinolaryngology Head and Neck Surgery, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - X Z Li
- Department of Otorhinolaryngology Head and Neck Surgery, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Y N Sun
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - L Shi
- Department of Rhinology and Allergy, Shandong Provincial ENT Hospital, Shandong University, Jinan 250299, China
| | - M Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Peking University People's Hospital, Beijing 100032, China
| | - X C Song
- Department of Otorhinolaryngology Head and Neck Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai 264000, China
| | - F Q Chen
- Department of Otorhinolaryngology Head and Neck Surgery, Xijing Hospital, the Fourth Military Medical University, Xi'an 710032, China
| | - X S Zhang
- Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China
| | - H Q Wei
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of China Medical University, Shenyang 110001, China
| | - S Q Yu
- Department of Otorhinolaryngology Head and Neck Surgery, Tongji Hospital, Tongji Medical University, Shanghai 200065, China
| | - D D Zhu
- Department of Otorhinolaryngology Head and Neck Surgery, China-Japan Union Hospital of Jilin University, Changchun 130033, China
| | - L Ba
- Department of Otorhinolaryngology Head and Neck Surgery, Xizang Autonomous Region People's Hospital, Lasa 850000, China
| | - Z W Cao
- Department of Otorhinolaryngology Head and Neck Surgery, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - X P Xiao
- Department of Otorhinolaryngology Head and Neck Surgery, Hunan Provincial People's Hospital, Changsha 410005, China
| | - X Wei
- Department of Otorhinolaryngology Head and Neck Surgery, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou 570311, China
| | - Z H Lin
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310009, China
| | - F H Chen
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - C G Shan
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - G K Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - J Ye
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - S H Qu
- Department of Otorhinolaryngology Head and Neck Surgery, Guangxi Zhuang Autonomous Region People's Hospital, Nanning 530021, China
| | - C Q Zhao
- Department of Otorhinolaryngology Head and Neck Surgery, Shanxi Medical University Affiliated Second Hospital, Taiyuan 030001, China
| | - Z L Wang
- Department of Otorhinolaryngology Head and Neck Surgery, XuanWu Hospital, Capital Medical University, Beijing 100053, China
| | - H B Li
- Department of Otorhinolaryngology Head and Neck Surgery, Eye, Ear, Nose and Throat Hospital, Shanghai Medical College, Fudan University, Shanghai 200031, China
| | - F Liu
- Department of Otorhinolaryngology Head and Neck Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - X B Cui
- Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010059, China
| | - S N Ye
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, China
| | - Z Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Y Xu
- Department of Otorhinolaryngology Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - X Cai
- Department of Otorhinolaryngology Head and Neck Surgery, Qinghai Provincial People's Hospital, Xining 810000, China
| | - W Hang
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, Tianjin 300350, China
| | - R X Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Huadong Hospital Affiliated to Fudan University, Shanghai 200040, China
| | - Y L Zhao
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - G D Yu
- Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China
| | - G G Shi
- Department of Otorhinolaryngology Head and Neck Surgery, Shandong Provincial Hospital, Affiliated to Shandong First Medical University, Jinan 250021, China
| | - M P Lu
- Department of Otorhinolaryngology, the First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China
| | - Y Shen
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Y T Zhao
- Department of Otorhinolaryngology Head and Neck Surgery, the First People's Hospital of Yinchuan, Yinchuan 750001, China
| | - J H Pei
- Department of Otorhinolaryngology, the First People's Hospital of Yunnan Province, Kunming 650100, China
| | - S B Xie
- Department of Otorhinolaryngology Head and Neck Surgery, Xiangya Hospital Central South University, Changsha 410008, China
| | - L G Yu
- Department of Otorhinolaryngology Head and Neck Surgery, the Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - Y H Liu
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - S S Gu
- Department of Otorhinolaryngology Head and Neck Surgery, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Y C Yang
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - L Cheng
- Department of Otorhinolaryngology, the First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China
| | - J F Liu
- Department of Otorhinolaryngology Head and Neck Surgery, China-Japan Friendship Hospital, Beijing 100029, China
| |
Collapse
|
5
|
Sun YN, Wang L, Yang SD, Zhang JL. [Application of pathological feature clustering in oral pathology teaching]. Zhonghua Kou Qiang Yi Xue Za Zhi 2023; 58:457-461. [PMID: 37082850 DOI: 10.3760/cma.j.cn112144-20220730-00425] [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: 04/22/2023]
Abstract
To propose a new student-guided teaching method, in which students carried out the clustering of different diseases with the same pathological characteristics, and differentiated diagnosis of these diseases. This method was named pathological feature clustering (PFC). Seventy-seven undergraduates of School of Stomatology, Wuhan University were enrolled. Stratified random sampling method was adopted to divide the students into 4 groups with 18-20 students in each group. Each group of students selected a disease from the following four topics as the theme and summarize the histological characteristics of the disease: ①oral mucosal disease;②odontogenic tumors and tumor-like lesions, oral and maxillofacial cysts; ③salivary gland diseases;④epithelial-derived tumors and tumor-like lesions (referred to as topics 1, 2, 3, and 4, respectively). When discussing a specific type of disease, the group which select the topic was the summary group (SG), and the other groups were the non-summary group (NSG). After summarizing, students shared the summary results through PPTs, and teachers made comments and supplements. The teaching effect was evaluated by comparing the results of the pre-class test and the final examination. Students' acceptance of PFC teaching method was evaluated through a questionnaire, which included 8 objective questions and 1 subjective question. Likert-scale was used to design the questionnaire, with 1 to 5 points for each question. Students rated each question according to their own situation. Differences among groups were compared by Mann-Whitney U nonparametric test. The pre-class test results showed that the scores of students in SG group in subjects 1, 2, 3 [(5.6±0.8), 5.0(1.0) and (2.9±1.0) points for subjects 1, 2 and 3, respectively] were higher than those in NSG group [(5.1±1.0), 4.0(2.5) and 1.5(2.5) points] (U=402.50, P=0.047; U=392.00, P=0.026; U=295.00, P=0.003). The final examination results showed that there was no significant difference between the scores of the SG group and the NSG group in subjects 1, 2, 3 and 4 (P>0.05). These results showed that the differences between SG and NSG groups were reduced after the summarizing and share between groups, further demonstrating the effectiveness of the PFC teaching method. The results of questionnaire showed that 81.8%(63/77) students were completely satisfied with PFC teaching method, 13.0%(10/77) students were satisfied and 5.2%(4/77) students were basically satisfied. According to the feedback of Likert scale objective evaluation questionnaire, the mean score of each question ranged from 4.19 to 4.77, indicating that students believed that PFC teaching method had a positive impact on the learning of oral pathology. The PFC teaching method proposed in this study could improve the ability of pathological differential diagnosis of undergraduates.
Collapse
Affiliation(s)
- Y N Sun
- Department of Oral Histopathology, School of Stomatology Wuhan University, Wuhan 430079, China
| | - L Wang
- Department of Oral Histopathology, School of Stomatology Wuhan University, Wuhan 430079, China
| | - S D Yang
- Department of Oral Histopathology, School of Stomatology Wuhan University, Wuhan 430079, China
| | - J L Zhang
- Department of Oral Histopathology, School of Stomatology Wuhan University, Wuhan 430079, China
| |
Collapse
|
6
|
Zhu XW, Wu W, Zhang CX, Xu TH, Han YW, Zhang X, Chen Y, Sun YN, Yao L. [Diagnostic value of rapid exchange test in patients with peritoneal dialysis catheter dysfunction]. Zhonghua Yi Xue Za Zhi 2023; 103:598-601. [PMID: 36822872 DOI: 10.3760/cma.j.cn112137-20221008-02092] [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: 02/25/2023]
Abstract
A total of 36 patients with suspected peritoneal dialysis (PD) catheter dysfunction in the First Hospital of China Medical University from June 2020 to August 2022 were included, and five patients with normal PD catheter were also included as the control group. There were 22 males and 19 females, and aged (45±21) years. The volume of rapid-phase drainage in the control and dysfunction groups was (2 086±65) and (1 181±637) ml, and the total drainage time was (15.2±1.3) and (38.3±14.9) min, respectively. The volume of rapid-phase drainage in the dysfunction group was reduced and the total drainage time was longer than that in the control group (both P<0.05). Compared with group with PD catheter migration, the duration of new bag instillation was prolonged, the drainage volume in the rapid-phase was reduced, the total drainage duration was prolonged, and the ultrafiltration volume was decreased in the group with PD catheter obstruction (all P<0.05). The rapid exchange test can provide an early preliminary diagnosis of PD catheter dysfunction and identify the type of catheter dysfunction.
Collapse
Affiliation(s)
- X W Zhu
- Department of Nephrology, the First Hospital of China Medical University, Shenyang 110001, China
| | - W Wu
- Department of Nephrology, the First Hospital of China Medical University, Shenyang 110001, China
| | - C X Zhang
- Blood Purification Center, the Fourth Peoples' Hospital of Shenyang, China Medical University, Shenyang 110031, China
| | - T H Xu
- Department of Nephrology, the First Hospital of China Medical University, Shenyang 110001, China
| | - Y W Han
- Department of Nephrology, the First Hospital of China Medical University, Shenyang 110001, China
| | - X Zhang
- Department of Nephrology, the First Hospital of China Medical University, Shenyang 110001, China
| | - Y Chen
- Department of Nephrology, the First Hospital of China Medical University, Shenyang 110001, China
| | - Y N Sun
- Department of Nephrology, the First Hospital of China Medical University, Shenyang 110001, China
| | - L Yao
- Department of Nephrology, the First Hospital of China Medical University, Shenyang 110001, China
| |
Collapse
|
7
|
Yan BR, Wang P, Li YS, Yang LK, Li QY, Kan X, Wang JT, Sun YN. [Roles and mechanisms of m 6A modification regulating RP11-426A6.5 in laryngeal squamous cell carcinoma]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:1470-1478. [PMID: 36707952 DOI: 10.3760/cma.j.cn115330-20220313-00111] [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: 01/29/2023]
Abstract
Objective: To investigate the roles of N6-methyladenosine (m6A) modification in regulating RP11-426A6.5 in the development of laryngeal squamous cell carcinoma (LSCC). Methods: The methylation and expression levels of lncRNAs were identified and important lncRNAs were screened utilizing long non-coding RNA (lncRNA) m6A methylation microarray. Cancer and para cancer tissue samples were taken from 48 LSCC patients hospitalized to the Department of Otolaryngology-Head and Neck Surgery of the Second Affiliated Hospital of Harbin Medical University between January and September 2017. Expression profiling microarray was performed in 3 of 48 LSCC samples, and methylated RNA immunoprecipitation-quantitative PCR (MeRIP-qPCR) and quantitative real-time fluorescent PCR (qRT-PCR) were performed in the remaining 45 LSCC samples to verify the m6A modification and expression levels of RP11-426A6.5. Correlations between RP11-426A6.5 and clinical factors were anlysed. Laryngeal cancer cell line with low expression of RP11-426A6.5 was created in vitro using RNA interference (RNAi) technology. The 5-Ethynyl-2'-deoxyuridine (EdU) cell proliferation experiment, wound healing experiment, and transwell invasion experiment were used respectively to measure the proliferation, migration, and invasion of LSCC cells. The effect of RP11-426A6.5 down-regulation on the growth of transplanted tumors in vivo was verified by nude mice tumorigenesis assay. The Cancer Genome Atlas (TCGA) database and sequence-based RNA adenosine methylation site predictor (SRAMP) website were used to predict the enzymes and corresponding methylation sites. MazF digestion was chosen to validate the binding sites. RNAi technology was used to observe the changes in cell function after interfering with the expression of the corresponding genes of the modified enzymes. MeRIP-qPCR was used to detect the level of RP11-426A6.5 m6A cell line treated with actinomycin D was used to observe the stability of RP11-426A6.5. Results: RP11-426A6.5 methylation and expression levels were significantly higher in LSCC tissues than those in paracancerous tissues (methylation levels: 23.828±4.975 vs 20.280±3.607; expression levels: 1.197±0.314 vs 1.015±0.170, all P values<0.05). RP11-426A6.5 expression levels were closely correlated with T stage (T1-2: 1.081±0.298 vs T3-4: 1.306±0.292, χ2=5.35, P<0.05). The postoperative survival of patients with high RP11-426A6.5 expressions was significantly lower than that of patients with low RP11-426A6.5 expression (P=0.046). Assays in vitro and in vivo showed that the downregulation of RP11-426A6.5 significantly decreased the proliferation, migration, and invasion abilities of LSCC cells and the growth of transplanted tumors. The binding of methyltransferase-like 3 (METTL3), an m6A-modified enzyme, to the corresponding methylation site of RP11-426A6.5 enhanced its stability and mediated its regulation of malignant behaviors of LSCC cells. Conclusions: RP11-426A6.5 can regulate the malignant behaviors of LSCC cells, which is mediated by the m6A modification process involving in the methyltransferase METTL3.
Collapse
Affiliation(s)
- B R Yan
- The Second Affiliated Hospital of Harbin Medical University, Department of Otolaryngology-Head and Neck Surgery, Harbin 150001, China
| | - P Wang
- The Second Affiliated Hospital of Harbin Medical University, Department of Otolaryngology-Head and Neck Surgery, Harbin 150001, China
| | - Y S Li
- The Second Affiliated Hospital of Harbin Medical University, Department of Otolaryngology-Head and Neck Surgery, Harbin 150001, China
| | - L K Yang
- The Second Affiliated Hospital of Harbin Medical University, Department of Otolaryngology-Head and Neck Surgery, Harbin 150001, China
| | - Q Y Li
- The Second Affiliated Hospital of Harbin Medical University, Department of Otolaryngology-Head and Neck Surgery, Harbin 150001, China
| | - X Kan
- The Second Affiliated Hospital of Harbin Medical University, Department of Otolaryngology-Head and Neck Surgery, Harbin 150001, China
| | - J T Wang
- The Second Affiliated Hospital of Harbin Medical University, Department of Otolaryngology-Head and Neck Surgery, Harbin 150001, China
| | - Y N Sun
- The Second Affiliated Hospital of Harbin Medical University, Department of Otolaryngology-Head and Neck Surgery, Harbin 150001, China
| |
Collapse
|
8
|
Sun YN, Ma YN, Jia XQ, Yao Q, Chen JP, Li H. Inducement of ER Stress by PAD Inhibitor BB-Cl-Amidine to Effectively Kill AML Cells. Curr Med Sci 2022; 42:958-965. [PMID: 36245030 DOI: 10.1007/s11596-022-2637-x] [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: 02/15/2021] [Accepted: 08/30/2022] [Indexed: 11/25/2022]
Abstract
OBJECTIVE Acute myeloid leukemia (AML) is a highly heterogeneous and recurrent hematological malignancy. Despite the emergence of novel chemotherapy drugs, AML patients' complete remission (CR) remains unsatisfactory. Consequently, it is imperative to discover new therapeutic targets or medications to treat AML. Such epigenetic changes like DNA methylation and histone modification play vital roles in AML. Peptidylarginine deminase (PAD) is a protein family of histone demethylases, among which the PAD2 and PAD4 expression have been demonstrated to be elevated in AML patients, thus suggesting a potential role of PADs in the development or maintenance of AML and the potential for the identification of novel therapeutic targets. METHODS AML cells were treated in vitro with the pan-PAD inhibitor BB-Cl-Amidine (BB-Cl-A). The AML cell lines were effectively induced into apoptosis by BB-Cl-A. However, the PAD4-specific inhibitor GSK484 did not. RESULTS PAD2 played a significant role in AML. Furthermore, we found that BB-Cl-A could activate the endoplasmic reticulum (ER) stress response, as evidenced by an increase in phosphorylated PERK (p-PERK) and eIF2α (p-eIF2α). As a result of the ER stress activation, the BB-Cl-A effectively induced apoptosis in the AML cells. CONCLUSION Our findings indicated that PAD2 plays a role in ER homeostasis maintenance and apoptosis prevention. Therefore, targeting PAD2 with BB-Cl-A could represent a novel therapeutic strategy for treating AML.
Collapse
Affiliation(s)
- Yan-Ni Sun
- Department of Hematology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Yan-Ni Ma
- Department of Hematology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Xiao-Qing Jia
- Department of Hematology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Qi Yao
- Department of Hematology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Jie-Ping Chen
- Department of Hematology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.
| | - Hui Li
- Department of Hematology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.
| |
Collapse
|
9
|
Xu LC, Cao J, Li WJ, Yang ZM, Zhao R, Zhang JR, Guo Y, Ge JC, Li L, Sun YN, Liu M, Tian LL. [Ferroptosis in laryngeal squamous cell carcinoma and its regulation by M2 macrophage-derived exosomes]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:324-332. [PMID: 35325945 DOI: 10.3760/cma.j.cn115330-20210621-00361] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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 investigate ferroptosis in laryngeal squamous cell carcinoma (LSCC) and its regulation by M2 macrophage-derived exosomes. Methods: LSCC and adjacent noncancerous tissue samples were collected from 32 patients treated in the Department of Otorhinolaryngology, Head and Neck Surgery of the Second Affiliated Hospital of Harbin between September 2018 and April 2021, including 26 males and 6 females, aged 43-79 years. The expressions of ferroptosis marker glutathione peroxidase 4(GPX4) in LSCC and adjacent noncancerous tissues were detected by immunohistochemistry and reverse transcriptase-polymerase chain reaction(RT-PCR). The correlations between GPX4 expression and clinicopathological factors in LSCC were analyzed. Biological changes of TU212 cells after treated with ferroptosis-induced agent erastin were detected by transmission electron microscope, cell counting kit-8(CCK-8), clone test, reactive oxygen species(ROS), malondialdehyde(MDA), glutathione(GSH), JC-1, RT-PCR and western blot. Exosomes were isolated from the supernatant of M0/M2 macrophages (M0-exos/M2-exos) and co-incubated with erastin-treated TU212 cells to detect the change of ferroptosis in cells of each group. The data were analyzed by SPSS software of version19.0. Results: GPX4 expression in LSCC tissues was significantly higher than that in adjacent noncancerous tissues (2.04±0.65 vs. 0.99±0.09, F=30.36, P<0.001), and was closely related to T stage and clinical stage (Ⅰ-Ⅱvs.Ⅲ-Ⅳ: 1.75±0.39 vs. 2.18±0.71, F=2.25, P<0.05; T1-2 vs. T3-4: 1.71±0.42 vs. 2.20±0.69, F=2.06, P<0.05). In TU212 cells treated with erastin, mitochondrial crest became smaller, membrane density increased, proliferation rate decreased, intracellular ROS level increased, mitochondrial membrane potential depolarized, GSH content decreased, intracellular MDA level increased and expressions of GPX4 mRNA and protein decreased. Change of M0 into M2 macrophages was induced by IL-4 stimulation. When erastin-treated TU212 cells were incubated with M2-exos, cell proliferation was partially restored and GPX4 expression was enhanced, and also with the recoveries of levels of ROS, MDA and GSH (all P<0.05). Conclusions: Ferroptosis is one of the cell death ways of LSCC. M2-exos may inhibit ferroptosis of LSCC cells.
Collapse
Affiliation(s)
- L C Xu
- Department of Otorhinolaryngology, Head and Neck Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - J Cao
- Department of Otorhinolaryngology, Head and Neck Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - W J Li
- Department of Otorhinolaryngology, Head and Neck Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - Z M Yang
- Department of Otorhinolaryngology, Head and Neck Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - R Zhao
- Department of Otorhinolaryngology, Head and Neck Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - J R Zhang
- Department of Otorhinolaryngology, Head and Neck Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - Y Guo
- Department of Otorhinolaryngology, Head and Neck Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - J C Ge
- Department of Otorhinolaryngology, Head and Neck Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - L Li
- Department of Otorhinolaryngology, Head and Neck Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - Y N Sun
- Department of Otorhinolaryngology, Head and Neck Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - M Liu
- Department of Otorhinolaryngology, Head and Neck Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - L L Tian
- Department of Otorhinolaryngology, Head and Neck Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| |
Collapse
|
10
|
Wang P, Yu BY, Wang X, Wang JT, Li QY, Sun YN, Tian LL, Liu M. [The function and mechanism of long non-coding RNA RP11-159K7.2 in sinonasal squamous cell carcinoma]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2021; 56:626-634. [PMID: 34256488 DOI: 10.3760/cma.j.cn115330-20200522-00434] [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 explore the role and mechanism of long non-coding RNA RP11-159K7.2 in the progression of sinonasal squamous cell carcinoma (SNSCC). Methods: Sixty-five cases of SNSCC tissues and adjacent tissues were selected from the Department of Otorhinolaryngology Head and Neck Surgery, the Second Affiliated Hospital of Harbin Medical University from 2009 to 2014. The expression of RP11-159K7.2 in SNSCC and adjacent tissues was detected by RNAscope in situ hybridization to observe its association with prognosis. Clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR associated proteins 9 (CRISPR/Cas9) was used to knockout the expression of RP11-159K7.2 in RPMI-2650 cells (SNSCC cell line). Cell counting kit-8 (CCK-8), wound healing and Transwell were performed to observe the changes of proliferation, migration and invasion of SNSCC cells in vitro after down-regulation of RP11-159K7.2. Moreover, the growth of xenograft in nude mice after down-regulation of RP11-159K7.2 was examined in vivo. Mechanically, the protein chip, Western blot and RNA immunoprecipitation were performed to identify the proteins bound by RP11-159K7.2. SPSS 17.0 was used for statistical analysis. Results: The expression of RP11-159K7.2 in SNSCC tissue was significantly higher than that in adjacent tissues. RP11-159K7.2 expression was closely related with T grade, nodal metastasis and differentiation of SNSCC (χ2 value was 4.697, 4.235 and 10.753, respectively, all P<0.05). The five-year survival rate of RP11-159K7.2 high expression patients was significantly lower than that of RP11-159K7.2 low expression ones (P=0.013 7). After the down-regulation of RP11-159K7.2, the proliferation, migration and invasion ability of SNSCC cells decreased significantly, and the growth of SNSCC xenograft was significantly inhibited. There were 31 candidate proteins that may bind to RP11-159K7.2. RP11-159K7.2 directly bound to nuclear factor-κB (NF-κB) in SNSCC cells, and the regulation of RP11-159K7.2 on the proliferation and invasion of SNSCC cells depended on NF-κB. Conclusion: The increased expression of RP11-159K7.2 in SNSCC may serve as a potential molecular marker for SNSCC prognosis assessment. It is currently considered that the carcinogenic mechanism of RP11-159K7.2 in SNSCC is related to the regulation of NF-κB protein.
Collapse
Affiliation(s)
- P Wang
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - B Y Yu
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - X Wang
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - J T Wang
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Q Y Li
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Y N Sun
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - L L Tian
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - M Liu
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| |
Collapse
|
11
|
Wu JY, Sun YN, Zhou XJ, Zhang CQ. A New Mutation Genotype of K218T in Myosin-5 Confers Resistance to Phenamacril in Rice Bakanae Disease in the Field. Plant Dis 2020; 104:1151-1157. [PMID: 32053477 DOI: 10.1094/pdis-05-19-1031-re] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In 2017 and 2018, a total of 294 Fusarium fujikuroi isolates were collected from bakanae-diseased rice plants in Jinhua, Shaoxing, and Jiaxing in Zhejiang Province, China. Phenamacril sensitivity of these isolates was determined by the 50% effective concentration value or minimum inhibitory concentration methods. Our results indicated that the phenamacril resistance frequency of F. fujikuroi increased from 18% in 2017 to 47% in 2018, and rice plants infected with F. fujikuroi-resistant isolates could not be protected effectively with 50 mg/liter of phenamacril. Phenamacril-resistant F. fujikuroi isolates obtained from rice fields showed stable resistance, because their fitness levels (i.e., mycelial growth, sporulation, and pathogenicity) were similar to the phenamacril-sensitive isolates. In addition to the point mutation at codon 219 in the myosin-5 gene that conferred resistance to phenamacril, our results also showed another point mutation at codon 218 (AAG→ACG) in myosin-5 that also conferred resistance to phenamacril. In this study, we found rapid development and persistence of diversified genotypes of phenamacril resistance, highlighting the importance of proper use of phenamacril in rice fields. Our results may also help researchers develop new fungicides or new control strategies using combinations of different fungicides in the control of phenamacril-resistant F. fujikuroi isolates.
Collapse
Affiliation(s)
- J Y Wu
- College of Agriculture and Food Science, Zhejiang A&F University, Lin'an, Zhejiang 311300, People's Republic of China
| | - Y N Sun
- College of Agriculture and Food Science, Zhejiang A&F University, Lin'an, Zhejiang 311300, People's Republic of China
| | - X J Zhou
- Jinhua Academy of Agricultural Sciences, Jinhua, Zhejiang 3210127, People's Republic of China
| | - C Q Zhang
- College of Agriculture and Food Science, Zhejiang A&F University, Lin'an, Zhejiang 311300, People's Republic of China
| |
Collapse
|
12
|
Cheng J, Sun YN, Zhang CY, Yu YL, Tang LH, Peng H, Peng Y, Yao YX, Hou SY, Li JW, Zhao JM, Xia L, Xu L, Xia YY, Zhao F, Wang LX, Zhang H. Incidence and risk factors of tuberculosis among the elderly population in China: a prospective cohort study. Infect Dis Poverty 2020; 9:13. [PMID: 32005290 PMCID: PMC6995187 DOI: 10.1186/s40249-019-0614-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 12/09/2019] [Indexed: 12/22/2022] Open
Abstract
Background China is facing challenges of the shifting presentation of tuberculosis (TB) from younger to elderly due to an ageing population, longer life expectancy and reactivation disease. However, the burden of elderly TB and influence factors are not yet clear. To fill the gap, we generated a cohort study to measure the magnitude of TB incidence and associated factors among the elderly population aged 65 years and above in China. Methods In this cohort established in 2013 through a prevalence survey conducted in selected sites, a total of 34 076 elderlies without TB were enrolled into two-year follow-up. We used both active and passive case findings to find out all TB patients among them. The person-year (PY) incidence rates for both bacteriologically positive TB and active TB were calculated. Cox proportional regression model was performed to test effect of risk factors, and the population attributable fraction (PAF) of each risk factor contributing to incident TB among elderlies was calculated. Results Over the two-year follow-up period, a total of 215 incident active TB were identified, 62 of which were bacteriologically positive. The incidence rates for active TB and bacteriologically positive TB were 481.8 per 100 000 PY (95% CI: 417.4–546.2 per 100 000 PY) and 138.9 per 100 000 PY (95% CI: 104.4–173.5 per 100 000 PY), respectively. Incident cases detected by active case finding were significantly higher (P < 0.001). Male, non-Han nationality, previously treated TB, ex/current smoker and body mass index (BMI) < 18.5 presented as independent predictors for developing TB disease. For developing bacteriologically positive TB, the biggest contribution was from self-reported ex or current smoker (18.06%). And, for developing active TB, the biggest contribution was from non-Han nationality (35.40%), followed by male (26.80%) and age at 75 years and above (10.85%). Conclusions Ageing population in China had a high TB incidence rate and risk to develop TB disease, implying that National TB Program (NTP) needs to prioritize for elderly. Active case finding should be applied capture more active TB cases among this particular population, especially for male, non-Han nationality, and those with identified risk factors.
Collapse
Affiliation(s)
- Jun Cheng
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yan-Ni Sun
- National Center for Population Health and Epidemiology, Canberra, Australia
| | - Can-You Zhang
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yan-Ling Yu
- Heilongjiang Provincial Center for Disease Control and Prevention, Harbin, China
| | - Li-Hong Tang
- Minhang District Center for Disease Control and Prevention, Shanghai, China
| | - Hong Peng
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Ying Peng
- Zhejiang Provincial Center for Disease Control and prevention, Hangzhou, China
| | - Yu-Xia Yao
- Henan Provincial Center for Disease control and prevention, Zhengzhou, China
| | - Shuang-Yi Hou
- Hubei Provincial Center for Disease Control and Prevention, Wuhan, China
| | - Jian-Wei Li
- Center for Tuberculosis Control of Guangdong Province, Guangzhou, China
| | - Jin-Ming Zhao
- GuangXi Center for Disease Prevention and Control, Nanning, China
| | - Lan Xia
- Sichuan Provincial Center for Disease Control and Prevention, Chengdu, China
| | - Lin Xu
- Yunnan Provincial Center for Disease Control and Prevention, Kunming, China
| | - Yin-Yin Xia
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Fei Zhao
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Li-Xia Wang
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.
| | - Hui Zhang
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.
| |
Collapse
|
13
|
Huang XT, Li X, Xie ML, Huang Z, Huang YX, Wu GX, Peng ZR, Sun YN, Ming QL, Liu YX, Chen JP, Xu SN. Resveratrol: Review on its discovery, anti-leukemia effects and pharmacokinetics. Chem Biol Interact 2019; 306:29-38. [PMID: 30954463 DOI: 10.1016/j.cbi.2019.04.001] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [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: 02/11/2019] [Revised: 03/21/2019] [Accepted: 04/01/2019] [Indexed: 12/27/2022]
Abstract
Resveratrol, found in variety of plants, is a natural stilbene structure polyphenol. It has various pharmacological effects, such as antioxidation, anti-aging, anti-inflammation, anti-cancer, antiobesity, anti-diabetes, cardioprotection, neuroprotection. Recently, anti-leukemia activities of resveratrol has been studied extensively via its effects on a variety of biological processes involving cell proliferation, apoptosis, autophagy. Current treatments of leukemia mainly rely on intensive chemotherapy or hematopoietic stem cell transplantation, however, these treatments are still with poor survival and high treatment-related mortality. Therefore, it is extremely needed to find relatively non-toxic medicines with minimal side effects but sufficient therapeutic efficacy. Resveratrol is one such potential candidate owing to its reported anti-leukemia effect. In this review, we summarized resveratrol's discovery, sources and isolation methods, administration methods, effects in different types of leukemia, pharmacokinetics and toxicities, aiming to exploit resveratrol as a potential drug candidate for anti-leukemia.
Collapse
Affiliation(s)
- Xiang-Tao Huang
- Center of Hematology, Key Laboratory of Tumor Immunotherapy of Chongqing, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, PR China
| | - Xi Li
- Center of Hematology, Key Laboratory of Tumor Immunotherapy of Chongqing, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, PR China
| | - Ming-Ling Xie
- Center of Hematology, Key Laboratory of Tumor Immunotherapy of Chongqing, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, PR China
| | - Zhen Huang
- Center of Hematology, Key Laboratory of Tumor Immunotherapy of Chongqing, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, PR China
| | - Yong-Xiu Huang
- Center of Hematology, Key Laboratory of Tumor Immunotherapy of Chongqing, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, PR China
| | - Gui-Xian Wu
- Center of Hematology, Key Laboratory of Tumor Immunotherapy of Chongqing, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, PR China
| | - Zhi-Rong Peng
- Center of Hematology, Key Laboratory of Tumor Immunotherapy of Chongqing, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, PR China
| | - Yan-Ni Sun
- Center of Hematology, Key Laboratory of Tumor Immunotherapy of Chongqing, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, PR China
| | - Qian-Liang Ming
- College of Pharmacy, Third Military Medical University (Army Medical University), Chongqing, 400038, PR China
| | - Yan-Xia Liu
- College of Pharmacy, Third Military Medical University (Army Medical University), Chongqing, 400038, PR China
| | - Jie-Ping Chen
- Center of Hematology, Key Laboratory of Tumor Immunotherapy of Chongqing, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, PR China.
| | - Shuang-Nian Xu
- Center of Hematology, Key Laboratory of Tumor Immunotherapy of Chongqing, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, PR China.
| |
Collapse
|
14
|
Wang DD, Piao YS, Blumcke I, Sun YN, Gao W, Zhao LH, Wang WM, Lu DH. Papillary Glioneuronal Tumor with an Excessive Angiomatous Component in an Elderly Man. Chin Med J (Engl) 2018; 131:243-244. [PMID: 29336376 PMCID: PMC5776858 DOI: 10.4103/0366-6999.222333] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Dan-Dan Wang
- Department of Pathology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Yue-Shan Piao
- Department of Pathology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Ingmar Blumcke
- Neuropathological Institute, University Hospital Erlangen, Erlangen, Germany
| | - Yan-Ni Sun
- Department of Pathology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Wei Gao
- Department of Pathology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Li-Hong Zhao
- Department of Pathology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Wei-Min Wang
- Department of Pathology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - De-Hong Lu
- Department of Pathology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| |
Collapse
|
15
|
Yang J, Zhang YL, Ye J, Guo Q, Sun YN, Zeng Q. Association between household physical activity level and type 2 diabetes among urban males in northern China. Public Health 2018; 163:113-120. [PMID: 30142481 DOI: 10.1016/j.puhe.2018.07.010] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 07/02/2018] [Accepted: 07/10/2018] [Indexed: 01/19/2023]
Abstract
OBJECTIVES Physical activity contributes to preventing type 2 diabetes (T2D). Doing housework is an unstructured mild-intensity physical activity. We aimed to investigate the association between household physical activity level (HPAL) and T2D in urban Chinese men. STUDY DESIGN This is a cross-sectional study. METHODS This study contained 13,862 male adults aged 35-78 (48.4 ± 7.1) years. According to the self-reported time (hours/day [h/d]) spent on housework, they were stratified into three levels: 0 h/d, >0-2 h/d, and >2 h/d. The association of HPAL with T2D was investigated by logistic regression analysis. RESULTS The odds ratios (ORs) for T2D across increasing categories of HPAL were 1.00 (reference), 0.80 (95% confidence interval [CI] 0.72-0.89), and 0.60 (95% CI 0.51-0.70), respectively (P for trend <0.001), after adjusting for confounding factors. Further adjustment for waist circumference or body mass index (BMI) had a minimal impact on these ORs. The inverse association of HPAL with T2D was persistent in subgroup analyses based on age, hypertension, family history of diabetes, smoking, BMI, waist circumstance, and fasting plasma glucose level. CONCLUSION Our findings indicated that HPAL was inversely associated with the risk of T2D among urban males in northern China. This implied that household physical activity may contribute to long-term glucose control. Well-designed longitudinal studies are required to improve our understanding of this association.
Collapse
Affiliation(s)
- J Yang
- Research Center for Information Technology of Sports and Health, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, Anhui, PR China; Department of Automation, University of Science and Technology of China, Hefei 230026, Anhui, PR China
| | - Y L Zhang
- Research Center for Information Technology of Sports and Health, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, Anhui, PR China; Institute of Health Management, Chinese PLA General Hospital, Beijing 100853, PR China
| | - J Ye
- Research Center for Information Technology of Sports and Health, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, Anhui, PR China
| | - Q Guo
- Department of Automation, University of Science and Technology of China, Hefei 230026, Anhui, PR China
| | - Y N Sun
- Research Center for Information Technology of Sports and Health, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, Anhui, PR China
| | - Q Zeng
- Institute of Health Management, Chinese PLA General Hospital, Beijing 100853, PR China.
| |
Collapse
|
16
|
Jiao HY, Sun YN, Jing XX, Liu J, Jiang L, Li CX, Ye J, Liu F, Huang YM, Zhao WT. [Assessment of Height Prediction Model Based on SNPs Loci]. Fa Yi Xue Za Zhi 2018; 34:132-137. [PMID: 29923376 DOI: 10.3969/j.issn.1004-5619.2018.02.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Indexed: 11/18/2022]
Abstract
OBJECTIVES To establish a height prediction model of Chinese Han male based on the reported 547 height-associated single nucleotide polymorphisms (SNPs) loci in Europeans, and assess its accuracy for height estimation. METHODS The DNA typing was analyzed in 59 Han male samples of Shandong province by Affymetrix SNP Array 6.0 chip and HiSeq 4000 sequencing platform. Prediction model was established using 547 height-associated SNPs loci as predictors and weight allele sums (WAS) as computing method. The accuracy of height prediction model was analysed using receiver operating characteristic (ROC) curve and area under curve (AUC). RESULTS There was no height-associated SNPs locus was found by genome-wide association studies. In present study, height prediction model was established by WAS and obtained an AUC of 0.67 (95% CI: 0.53-0.90). CONCLUSIONS It has reference value for predicting the height of Han male in Shandong province by WAS model based on 547 SNPs loci, while it is still necessary to further promote the accuracy of the prediction model by screening more height-associated SNPs loci with population heterogeneity.
Collapse
Affiliation(s)
- H Y Jiao
- Department of Forensic Medicine, Xinxiang Medical University, Xinxiang 453003, China.,Key Laboratory of Forensic Genetics, National Engineering Laboratory for Forensic Science, Beijing Engineering Research Center of Crime Scene Evidence Examination, Institute of Forensic Science, Ministry of Public Security, PRC, Beijing 100038, China
| | - Y N Sun
- Key Laboratory of Forensic Genetics, National Engineering Laboratory for Forensic Science, Beijing Engineering Research Center of Crime Scene Evidence Examination, Institute of Forensic Science, Ministry of Public Security, PRC, Beijing 100038, China.,Institute of Forensic Medicine and Laboratory Medicine, Jining Medical University, Jining 272067, China
| | - X X Jing
- Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100029, China
| | - J Liu
- Key Laboratory of Forensic Genetics, National Engineering Laboratory for Forensic Science, Beijing Engineering Research Center of Crime Scene Evidence Examination, Institute of Forensic Science, Ministry of Public Security, PRC, Beijing 100038, China
| | - L Jiang
- Key Laboratory of Forensic Genetics, National Engineering Laboratory for Forensic Science, Beijing Engineering Research Center of Crime Scene Evidence Examination, Institute of Forensic Science, Ministry of Public Security, PRC, Beijing 100038, China
| | - C X Li
- Key Laboratory of Forensic Genetics, National Engineering Laboratory for Forensic Science, Beijing Engineering Research Center of Crime Scene Evidence Examination, Institute of Forensic Science, Ministry of Public Security, PRC, Beijing 100038, China
| | - J Ye
- Key Laboratory of Forensic Genetics, National Engineering Laboratory for Forensic Science, Beijing Engineering Research Center of Crime Scene Evidence Examination, Institute of Forensic Science, Ministry of Public Security, PRC, Beijing 100038, China
| | - F Liu
- Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100029, China
| | - Y M Huang
- Department of Forensic Medicine, Xinxiang Medical University, Xinxiang 453003, China
| | - W T Zhao
- Key Laboratory of Forensic Genetics, National Engineering Laboratory for Forensic Science, Beijing Engineering Research Center of Crime Scene Evidence Examination, Institute of Forensic Science, Ministry of Public Security, PRC, Beijing 100038, China
| |
Collapse
|
17
|
Li J, Liu XQ, Jiang SW, Li X, Yu F, Wang Y, Peng Y, Gu XM, Sun YN, Zhang H, Wang LX. Improving tuberculosis case detection in underdeveloped multi-ethnic regions with high disease burden: a case study of integrated control program in China. Infect Dis Poverty 2017; 6:151. [PMID: 29183369 PMCID: PMC5706405 DOI: 10.1186/s40249-017-0365-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 10/03/2017] [Indexed: 11/26/2022] Open
Abstract
Background In the underdeveloped multi-ethnic regions of China, high tuberculosis (TB) burden and regional inequity in access to healthcare service increase the challenge of achieving the End TB goals. Among all the provinces, the highest TB burden is reported in Xinjiang, where ethnic minorities and older people have suffered most. However, current case-finding strategy is inadequate given the complex social determinants and suboptimal case detection rates. Thus, we developed an integrated TB control program to improve case detection and conducted a pilot in Xinjiang from 2014 to 2015. In this case study, we summarized the activities and key findings. We also shared the experiences and challenges of implementing interventions and provided recommendations to inform the TB control program in the future. Case presentation The pilot interventions were implemented in one selected town in Yining based on local TB control programs. By applying tailor-made educational materials, outreach TB educational activities were conducted in diverse ways. In 22 Masjids, the trained imams promoted TB education to the Muslims, covering 20,440 person-times in 88 delivered preaching sessions. In seven schools, 1944 students were educated by the teachers and contributed to educating 6929 family members. In the village communities, 13,073 residents participated in household education and screening. Among them, 12,292 people aged under 65 years were investigated for suspicious pulmonary TB symptoms, where six TB patients were diagnosed out of 89 TB suspects; 781 older people were mobilized for screening directly by chest X-ray, where 10 patients were diagnosed out of 692 participants. Supportive healthcare system, multi-sectoral cooperation and multi-channel financing mechanism were the successful experiences of implementation. The interventions were proved to be more effective than the previous performance: the number of TB suspects consulting doctors and patients detected increased by 50% and 26%, respectively. The potential challenges, implications and recommendations should been taken into account for further program improvement. Conclusions In underdeveloped multi-ethnic regions with high TB burden, improving case detection is necessary and the interventions can be feasible and effective within a supportive system. More intensive educational and training approaches, a high index of TB suspicion and prioritization of older people in screening are recommended. To sustain and scale up the program, the impacts, cost-effectiveness, feasibility and acceptability of interventions warrant further research and evaluation in each specific context. Electronic supplementary material The online version of this article (10.1186/s40249-017-0365-4) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Jun Li
- Jockey School of Public Health and Primary Care, Chinese University of Hong Kong, Hong Kong, China
| | - Xiao-Qiu Liu
- National Center for TB Control and Prevention, China CDC, 0515, 155 Changbai Road, Changping District, Beijing, 102206, China.
| | - Shi-Wen Jiang
- National Center for TB Control and Prevention, China CDC, 0515, 155 Changbai Road, Changping District, Beijing, 102206, China
| | - Xue Li
- National Center for TB Control and Prevention, China CDC, 0515, 155 Changbai Road, Changping District, Beijing, 102206, China
| | - Fei Yu
- Yining Center for Disease Control and Prevention, Yili, China
| | - Yan Wang
- Yining Center for Disease Control and Prevention, Yili, China
| | - Yong Peng
- Yili Center for Disease Control and Prevention, Yili, China
| | - Xiao-Ming Gu
- Xinjiang Center for Disease Control and Prevention, Urumqi, China
| | - Yan-Ni Sun
- World Health Organization Beijing Office, Beijing, China
| | - Hui Zhang
- National Center for TB Control and Prevention, China CDC, 0515, 155 Changbai Road, Changping District, Beijing, 102206, China
| | - Li-Xia Wang
- National Center for TB Control and Prevention, China CDC, 0515, 155 Changbai Road, Changping District, Beijing, 102206, China
| |
Collapse
|
18
|
Xuan LJ, Sun YN. [Acute infective rhinosinusitis leads to blindness: one case report]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 52:849-850. [PMID: 29141296 DOI: 10.3760/cma.j.issn.1673-0860.2017.11.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- L J Xuan
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Y N Sun
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| |
Collapse
|
19
|
Zhang C, Zhang DW, Sun YN, Arfan M, Li DX, Yan JJ, You MH, Bai SQ, Lin HH. Photo-protective mechanisms in reed canary grass to alleviate photo-inhibition of PSII on the Qinghai-Tibet Plateau. J Plant Physiol 2017; 215:11-19. [PMID: 28527334 DOI: 10.1016/j.jplph.2017.04.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 04/28/2017] [Accepted: 04/29/2017] [Indexed: 06/07/2023]
Abstract
Due to its characteristic of high biomass yield potential, there is considerable interest in cultivating Phalaris arundinacea L. cv. 'chuancaoyin No.3' (reed canary grass) on the Qinghai-Tibet Plateau where there is an abundance of alpine steppe meadow and a potential large market for animal husbandry. In this study, we 1) investigate whether reed canary grass exhibits superior productive capacity to Elymus nutans 'Aba' (E. nutans), ordinary common pasture, during the long warm days of summer at high-altitude; and 2) compare the cold tolerance between reed canary grass and E. nutans, including photosynthesis, photo-inhibition, and photo-protection. The results suggest that reed canary grass exhibits higher photosynthetic capacity compared to E. nutans at latitudes of the cool temperate zone. Meanwhile, cold-induced photo-inhibition and photo-damage at high altitudes in reed canary grass were due to both stomatal and non-stomatal limitation, and the enhancement in photo-respiration, thermal dissipation, and Mehler reaction are important processes to minimize the negative effects of high elevation and a cold environment.
Collapse
Affiliation(s)
- Chao Zhang
- Ministry of Education Key Laboratory for Bio-Resource and Eco-Environment, College of Life Science, State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu, Sichuan 610064, China
| | - Da-Wei Zhang
- Ministry of Education Key Laboratory for Bio-Resource and Eco-Environment, College of Life Science, State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu, Sichuan 610064, China
| | - Yan-Ni Sun
- Ministry of Education Key Laboratory for Bio-Resource and Eco-Environment, College of Life Science, State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu, Sichuan 610064, China
| | - Muhammad Arfan
- Ministry of Education Key Laboratory for Bio-Resource and Eco-Environment, College of Life Science, State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu, Sichuan 610064, China
| | - Da-Xu Li
- Sichuan Academy of Grassland Science, Chengdu, Sichuan 611731, China
| | - Jia-Jun Yan
- Sichuan Academy of Grassland Science, Chengdu, Sichuan 611731, China
| | - Ming-Hong You
- Sichuan Academy of Grassland Science, Chengdu, Sichuan 611731, China
| | - Shi-Qie Bai
- Sichuan Academy of Grassland Science, Chengdu, Sichuan 611731, China.
| | - Hong-Hui Lin
- Ministry of Education Key Laboratory for Bio-Resource and Eco-Environment, College of Life Science, State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu, Sichuan 610064, China.
| |
Collapse
|
20
|
Ding RY, Qiu JN, Liu BY, Li XX, Sun YN, Liang YJ, Zhao DM, Zhu R, Zhang ZD, Ma XC. [A retrospective clinical study of sixty-three cases with persistent inflammation immunosuppression and catabolism syndrome]. Zhonghua Nei Ke Za Zhi 2017; 55:941-944. [PMID: 27916049 DOI: 10.3760/cma.j.issn.0578-1426.2016.12.007] [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 study the clinical characteristics and prognosis of patients with persistent inflammation immunosuppression and catabolism syndrome (PICS) in ICU. Methods: A total of 126 patients admitted to ICU (ICU stay of more than 10 days, age≥18 years) between January 2014 to December 2014 were retrospectively studied.Data were collected from electronic medical records including demographics, underlying disease, Acute Physiology and Chronic Health Evaluation Ⅱ (APACHEⅡ) score, Sequential Organ Failure Assessment (SOFA) score, laboratory parameters, ICU acquired infections and clinical outcome. Results: The overall incidence of PICS in ICU patients (ICU stay of more than 10 days) was 50.0%(63/126). There were no significant differences in baseline data such as gender, age, APACHEⅡscore, SOFA score and underlying diseases between the two groups(all P>0.05). Compared with the non-PICS group, there were more patients with gastrointestinal perforation in the PICS group (P=0.042), however, the medical or surgical admission did not differ between the two groups(P>0.05). During the stay in ICU, the PICS group showed a higher risk of developing acquired infections compared with the non-PICS group[PICS 63.5%(40/63) vs non-PICS 23.8%(15/63); P<0.001]. The infections were more caused by Candida in the PICS group than the non-PICS group [PICS 22.4%(11/49) vs non-PICS 2/17; P=0.003]. Moreover, the PICS group experienced longer stay in ICU[PICS(31.6±28.8) days vs non-PICS (20.4±11.3) days; P=0.0046] and higher ICU mortality [PICS 28.6%(18/63) vs non-PICS 6.3%(4/63), P=0.001]. Conclusion: PICS is a common manifestation of patients who stay in ICU more than 10 days, which is associated with high risk of ICU acquired infections, prolonged length of stay and high mortality.
Collapse
Affiliation(s)
- R Y Ding
- Department of Intensive Care Unit, the First Hospital of China Medical University, Shenyang 110001, China
| | | | | | | | | | | | | | | | | | | |
Collapse
|
21
|
Sun LJ, Sun YN, Chen SJ, Liu S, Jiang GR. Resveratrol attenuates skeletal muscle atrophy induced by chronic kidney disease via MuRF1 signaling pathway. Biochem Biophys Res Commun 2017; 487:83-89. [PMID: 28392400 DOI: 10.1016/j.bbrc.2017.04.022] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [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: 03/31/2017] [Accepted: 04/05/2017] [Indexed: 12/25/2022]
Abstract
Skeletal muscle atrophy is an important clinical characteristic of chronic kidney disease (CKD); however, at present, the therapeutic approaches to muscle atrophy induced by CKD are still at an early stage of development. Resveratrol is used to attenuate muscle atrophy in other experimental models, but the effects on a CKD model are largely unknown. Here, we showed that resveratrol prevented an increase in MuRF1 expression and attenuated muscle atrophy in vivo model of CKD. We also found that phosphorylation of NF-κB was inhibited at the same time. Dexamethasone-induced MuRF1 upregulation was significantly attenuated in C2C12 myotubes by resveratrol in vitro, but this effect on C2C12 myotubes was abrogated by a knockdown of NF-κB, suggesting that the beneficial effect of resveratrol was NF-κB dependent. Our findings provide novel information about the ability of resveratrol to prevent or treat muscle atrophy induced by CKD.
Collapse
Affiliation(s)
- Li-Jing Sun
- Department of Nephrology, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - Yan-Ni Sun
- Department of Emergency, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China
| | - Shun-Jie Chen
- Department of Nephrology, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - Shuang Liu
- Department of Nephrology, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - Geng-Ru Jiang
- Department of Nephrology, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, China.
| |
Collapse
|
22
|
Sun LJ, Sun YN, Shan JP, Jiang GR. Effects of mineralocorticoid receptor antagonists on the progression of diabetic nephropathy. J Diabetes Investig 2017; 8:609-618. [PMID: 28107779 PMCID: PMC5497036 DOI: 10.1111/jdi.12629] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Revised: 01/05/2017] [Accepted: 01/11/2017] [Indexed: 11/30/2022] Open
Abstract
Aims/Introduction We aimed to evaluate the potential benefits and adverse effects of adding a mineralocorticoid receptor antagonist (MRA) to angiotensin‐converting enzyme inhibitors (ACEI) and/or angiotensin receptor blockers (ARB), as standard treatment in patients with diabetic nephropathy. Materials and Methods We scanned the Embase, PubMed and Cochrane Central Register of Controlled Trials databases for human clinical trials published in English until June 2016, evaluating renal outcomes in patients with diabetic nephropathy. Results A total of 18 randomized controlled trials involving 1,786 patients were included. Compared with ACEI/ARB alone, co‐administration of MRA and ACEI/ARB significantly reduced urinary albumin excretion and the urinary albumin–creatinine ratio (mean difference −69.38, 95% confidence intervals −103.53 to −35.22, P < 0.0001; mean difference −215.74, 95% confidence intervals −409.22 to −22.26, P = 0.03, respectively). A decrease of blood pressure was also found in the co‐administration of MRA and ACEI/ARB groups. However, we did not observe any improvement in the glomerular filtration rate. There was a significant increase in the risk of hyperkalemia on the addition of MRA to ACEI/ARB treatment (relative risk 3.74, 95% confidence intervals 2.30–6.09, P < 0.00001). Conclusions These findings suggest that co‐administration of MRA and ACEI/ARB has beneficial effects on renal outcomes with increasing the incidence of hyperkalemia.
Collapse
Affiliation(s)
- Li-Jing Sun
- Department of Nephrology, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Yan-Ni Sun
- Department of Emergency, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jian-Ping Shan
- Department of Nephrology, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Geng-Ru Jiang
- Department of Nephrology, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| |
Collapse
|
23
|
Gao P, Wang H, Chen WX, Sun YN, Zhang W, Pang XH, He X, Wu J. [A sero-epidemiological study of hepatitis B among general population in Beijing]. Zhonghua Liu Xing Bing Xue Za Zhi 2017; 37:658-62. [PMID: 27188357 DOI: 10.3760/cma.j.issn.0254-6450.2016.05.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To understand the sero-prevalence of hepatitis B in general population in Beijing and provide evidence for the prevention and control of hepatitis B. METHODS A serological survey was conducted in general population aged >1 year selected through multistage randomized cluster sampling in Beijing from August 2013 to February 2014. The estimated sample size was 5 200. Venous blood samples were collected from them to detect five hepatitis B serological indicators. The information about the hepatitis B immunization history and risk factors of the study subjects were collected through a questionnaire survey. RESULTS A total of 6 705 people were surveyed. The sero-positive rates of HBsAg, anti-HBs, anti-HBc and total HBV infection rate were 2.74%, 44.72%, 26.91% and 26.95% respectively. The age standardized rates were 2.73%, 44.83%, 26.84% and 26.87% respectively. As for the general population, in Beijing since the prevalence rate of hepatitis B surface antigen has decreased to 2.73%, <1% in children aged less than 5 years old, <1% in people aged less than 25 years old. CONCLUSION The integrated prevention and control strategy of hepatitis B had a significant effect in Beijing. We should continue to strengthen the work of adult hepatitis B vaccination.
Collapse
Affiliation(s)
- P Gao
- Institute for Immunization of Beijing Municipal Center for Disease Control and Prevention, Beijing 100013, China
| | - H Wang
- Institute for Immunization of Beijing Municipal Center for Disease Control and Prevention, Beijing 100013, China
| | - W X Chen
- Institute for Immunization of Beijing Municipal Center for Disease Control and Prevention, Beijing 100013, China
| | - Y N Sun
- Institute for Immunization of Beijing Municipal Center for Disease Control and Prevention, Beijing 100013, China
| | - W Zhang
- Institute for Immunization of Beijing Municipal Center for Disease Control and Prevention, Beijing 100013, China
| | - X H Pang
- Beijing Municipal Center for Disease Control and Prevention, Beijing 100013, China
| | - X He
- Beijing Municipal Center for Disease Control and Prevention, Beijing 100013, China
| | - J Wu
- Institute for Immunization of Beijing Municipal Center for Disease Control and Prevention, Beijing 100013, China
| |
Collapse
|
24
|
Luo SS, Sun YN, Zhou X, Zhu T, Zhu LS, Arfan M, Zou LJ, Lin HH. Medicago truncatula genotypes Jemalong A17 and R108 show contrasting variations under drought stress. Plant Physiol Biochem 2016; 109:190-198. [PMID: 27721134 DOI: 10.1016/j.plaphy.2016.09.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 09/28/2016] [Accepted: 09/30/2016] [Indexed: 06/06/2023]
Abstract
Drought is one of the most significant abiotic stresses that restrict crop productivity. Medicago truncatula is a model legume species with a wide genetic diversity. We compared the differential physiological and molecular changes of two genotypes of M. truncatula (Jemalong A17 and R108) in response to progressive drought stress and rewatering. The MtNCED and MtZEP activation and higher abscisic acid (ABA) content was observed in Jemalong A17 plants under normal conditions. Additionally, a greater increase in ABA content and expression of MtNCED and MtZEP in Jemalong A17 plants than that of R108 plants were observed under drought conditions. A more ABA-sensitive stomatal closure and a slower water loss was found in excised leaves of Jemalong A17 plants. Meanwhile, Jemalong A17 plants alleviated leaf wilting and maintained higher relative water content under drought conditions. Exposed to drought stress, Jemalong A17 plants exhibited milder oxidative damage which has less H2O2 and MDA accumulation, lower electrolyte leakage and higher chlorophyll content and PSII activity. Furthermore, Jemalong A17 plants enhanced expression of stress-upregulated genes under drought conditions. These results suggest that genotypes Jemalong A17 and R108 differed in their response and adaptation to drought stress. Given the relationship between ABA and these physiological responses, the MtNCED and MtZEP activation under normal conditions may play an important role in regulation of greater tolerance of Jemalong A17 plants to drought stress. The activation of MtNCED and MtZEP may lead to the increase of ABA content which may activate expression of drought-stress-regulated genes and cause a series of physiological resistant responses.
Collapse
Affiliation(s)
- Shi-Shuai Luo
- Ministry of Education Key Laboratory for Bio-Resource and Eco-Environment, College of Life Science, Sichuan University, State Key Laboratory of Hydraulics and Mountain River Engineering, Chengdu 610064, China
| | - Yan-Ni Sun
- Ministry of Education Key Laboratory for Bio-Resource and Eco-Environment, College of Life Science, Sichuan University, State Key Laboratory of Hydraulics and Mountain River Engineering, Chengdu 610064, China
| | - Xue Zhou
- Ministry of Education Key Laboratory for Bio-Resource and Eco-Environment, College of Life Science, Sichuan University, State Key Laboratory of Hydraulics and Mountain River Engineering, Chengdu 610064, China
| | - Tong Zhu
- Ministry of Education Key Laboratory for Bio-Resource and Eco-Environment, College of Life Science, Sichuan University, State Key Laboratory of Hydraulics and Mountain River Engineering, Chengdu 610064, China
| | - Li-Sha Zhu
- Ministry of Education Key Laboratory for Bio-Resource and Eco-Environment, College of Life Science, Sichuan University, State Key Laboratory of Hydraulics and Mountain River Engineering, Chengdu 610064, China
| | - Muhammad Arfan
- Ministry of Education Key Laboratory for Bio-Resource and Eco-Environment, College of Life Science, Sichuan University, State Key Laboratory of Hydraulics and Mountain River Engineering, Chengdu 610064, China
| | - Li-Juan Zou
- Ministry of Education Key Laboratory for Bio-Resource and Eco-Environment, College of Life Science, Sichuan University, State Key Laboratory of Hydraulics and Mountain River Engineering, Chengdu 610064, China; Life Science and Technology College and Ecological Security and Protection Key Laboratory of Sichuan Province, Mianyang Normal University, Mianyang 621000, China
| | - Hong-Hui Lin
- Ministry of Education Key Laboratory for Bio-Resource and Eco-Environment, College of Life Science, Sichuan University, State Key Laboratory of Hydraulics and Mountain River Engineering, Chengdu 610064, China.
| |
Collapse
|
25
|
Zhang RL, Zhang H, Zhang L, Xiao L, Sun YN, Yang Y, Bao YX. [Brain metastases from hepatocellular carcinoma: clinical features and prognostic factors in 31 cases]. Zhonghua Zhong Liu Za Zhi 2016; 38:305-9. [PMID: 27087379 DOI: 10.3760/cma.j.issn.0253-3766.2016.04.012] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE Brain metastases (BM) from hepatocellular carcinoma (HCC) are rare and are associated with a poor prognosis. The aim of this study was to analyze the clinical features and evaluate the prognostic factors of brain metastases from hepatocellular carcinoma. METHODS The clinical data of thirty-one patients with HCC and BM treated in the First Affiliated Hospital of Xinjiang Medical University between January 1998 and December 2013 were retrospectively reviewed. Univariate and multivariate survival analyses were performed to identify possible prognostic factors. RESULTS Thrity-one patients were diagnosed with BM from HCC, an incidence rate of 0.61%. The median age at diagnosis of brain metastases was 48.5 years. Twenty-six patients were male. The median interval from diagnosis of hepatocellular carcinoma to brain metastases was 14 months. The median survival after the diagnosis of BM was 10 weeks. Univariate analysis showed that treatment modality, number of brain lesions, Karnofsky performance score, recursive partitioning analysis (RPA) class, and Child-Pugh classification had a statistically significant impact on the survival. The multivariate analysis showed that the low RPA class and aggressive brain radiotherapy were positively associated with improved survival. CONCLUSION BM from HCC is rare and associated with an extremely poor prognosis. However, patients with a low RPA class may benefit from aggressive brain radiotherapy.
Collapse
Affiliation(s)
- R L Zhang
- Tumor Center, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| | - H Zhang
- Tumor Center, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| | - L Zhang
- Tumor Center, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| | - L Xiao
- Tumor Center, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| | - Y N Sun
- Tumor Center, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| | - Y Yang
- Tumor Center, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| | - Y X Bao
- Tumor Center, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| |
Collapse
|
26
|
Sun YN, Zhang ZY, Zeng YC, Chi F, Jin XY, Wu R. Comparative efficacy of whole-brain radiotherapy with and without elemene liposomes in patients with multiple brain metastases from non-small-cell lung carcinoma. ACTA ACUST UNITED AC 2016; 23:e377-82. [PMID: 27536187 DOI: 10.3747/co.23.3183] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
PURPOSE We explored and compared the clinical effects of whole-brain radiotherapy (wbrt) with and without elemene liposomes in patients with multiple brain metastases from non-small-cell lung carcinoma (nsclc). METHODS We retrospectively analyzed 62 patients with multiple brain metastases from nsclc who received wbrt (30 Gy in 10 fractions) at Shengjing Hospital of China Medical University from January 2012 to May 2013. In 30 patients, elemene liposomes (400 mg) were injected intravenously via a peripherally inserted central catheter for 21 consecutive days from the first day of radiotherapy. Overall survival (os) and nervous system progression-free survival (npfs) for the two groups were compared by Kaplan-Meier analysis. Factors influencing npfs were examined by Cox regression analysis. Chi-square or Fisher exact tests were used for group comparisons. RESULTS The median os was 9.0 months in the wbrt plus elemene group and 7.8 months in the wbrt-alone group (p = 0.581); the equivalent median npfs durations were 5.2 months and 3.7 months (p = 0.005). Patient treatment plan was an independent factor associated with npfs (p = 0.002). Tumour response and disease-control rates in the wbrt plus elemene group were 26.67% and 76.67% respectively; they were 18.75% and 62.5% in the wbrt group (p = 0.452). Compared with the patients in the wbrt-alone group, significantly fewer patients in the wbrt plus elemene group developed headaches (p = 0.04); quality of life was also significantly higher in the wbrt plus elemene group both at 1 month and at 2 months (p = 0.021 and p = 0.001 respectively). CONCLUSIONS The addition of elemene liposomes to wbrt might prolong npfs in patients with multiple brain metastases from nsclc, while also reducing the incidence of headache and improving patient quality of life.
Collapse
Affiliation(s)
- Y N Sun
- Department of Medical Oncology, Shengjing Hospital of China Medical University, Shenyang, P.R.C
| | - Z Y Zhang
- Department of Medical Oncology, Shengjing Hospital of China Medical University, Shenyang, P.R.C
| | - Y C Zeng
- Department of Medical Oncology, Shengjing Hospital of China Medical University, Shenyang, P.R.C
| | - F Chi
- Department of Medical Oncology, Shengjing Hospital of China Medical University, Shenyang, P.R.C
| | - X Y Jin
- Department of Medical Oncology, Shengjing Hospital of China Medical University, Shenyang, P.R.C
| | - R Wu
- Department of Medical Oncology, Shengjing Hospital of China Medical University, Shenyang, P.R.C
| |
Collapse
|
27
|
Zeng YC, Wu R, Xing R, Chi F, Wang SL, Chen XD, Xuan Y, Wu LN, Duan QY, Tang MY, Niu N, Sun YN, Fan GL, Wang HM. Radiation-enhancing effect of sodium glycididazole in patients suffering from non-small cell lung cancer with multiple brain metastases: A randomized, placebo-controlled study. Cancer Radiother 2016; 20:187-92. [PMID: 27052296 DOI: 10.1016/j.canrad.2016.02.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [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: 01/26/2016] [Revised: 02/05/2016] [Accepted: 02/14/2016] [Indexed: 01/06/2023]
Abstract
PURPOSE Median survival of patients with brain metastases from non-small cell lung cancer is poor. This study was to investigate the radiation-enhancing effect of sodium glycididazole combined with whole-brain radiotherapy of multiple brain metastases from non-small cell lung cancer. PATIENTS AND METHODS Sixty-four patients with multiple brain metastases from non-small cell lung cancer were included: the study group (n=32) received whole-brain radiotherapy combined with sodium glycididazole at a dose of 700mg/m(2) intravenous infusion 30minutes before radiotherapy, three times a week; the control group (n=32) only received whole-brain radiotherapy. The primary end point was central nervous system (CNS) progression-free survival and overall survival. The treatment-related toxicity was also recorded. RESULTS The CNS disease control rate was better (90.6% vs 65.6%, P=0.016) in the study group than in the control group at 3 month of follow-up. The median CNS progression-free survival time was longer in the study group than in the control group (7.0 months vs 4.0 months, P=0.038). There was no significant difference of the median overall survival time between the study group and the control group (11.0 months vs 9.0 months, P=0.418). On the other hand, the treatment-related toxicity showed no statistically significant difference between these two groups (P>0.05). CONCLUSIONS The study indicated that sodium glycididazole was an effective, promising radiation-enhancing agent that improved CNS disease control rate, extended the median CNS progression-free survival time and was well tolerated in patients suffering from non-small cell lung cancer with multiple brain metastases.
Collapse
Affiliation(s)
- Y C Zeng
- Department of Medical Oncology, Cancer Center, Shengjing Hospital of China Medical University, 39, Huaxiang Road, Shenyang 110022, China
| | - R Wu
- Department of Medical Oncology, Cancer Center, Shengjing Hospital of China Medical University, 39, Huaxiang Road, Shenyang 110022, China.
| | - R Xing
- Department of Medical Oncology, Cancer Center, Shengjing Hospital of China Medical University, 39, Huaxiang Road, Shenyang 110022, China
| | - F Chi
- Department of Medical Oncology, Cancer Center, Shengjing Hospital of China Medical University, 39, Huaxiang Road, Shenyang 110022, China
| | - S L Wang
- Department of Medical Oncology, Cancer Center, Shengjing Hospital of China Medical University, 39, Huaxiang Road, Shenyang 110022, China
| | - X D Chen
- Department of Medical Oncology, Cancer Center, Shengjing Hospital of China Medical University, 39, Huaxiang Road, Shenyang 110022, China
| | - Y Xuan
- Department of Medical Oncology, Cancer Center, Shengjing Hospital of China Medical University, 39, Huaxiang Road, Shenyang 110022, China
| | - L N Wu
- Department of Medical Oncology, Cancer Center, Shengjing Hospital of China Medical University, 39, Huaxiang Road, Shenyang 110022, China
| | - Q Y Duan
- Department of Medical Oncology, Cancer Center, Shengjing Hospital of China Medical University, 39, Huaxiang Road, Shenyang 110022, China
| | - M Y Tang
- Department of Medical Oncology, Cancer Center, Shengjing Hospital of China Medical University, 39, Huaxiang Road, Shenyang 110022, China
| | - N Niu
- Department of Medical Oncology, Cancer Center, Shengjing Hospital of China Medical University, 39, Huaxiang Road, Shenyang 110022, China
| | - Y N Sun
- Department of Medical Oncology, Cancer Center, Shengjing Hospital of China Medical University, 39, Huaxiang Road, Shenyang 110022, China
| | - G L Fan
- Department of Otorhinolaryngology, Harbin First Hospital, 151, Diduan Street, Harbin 150010, China
| | - H M Wang
- Department of Radiation Oncology, Nanfang Hospital of Southern Medical University, Guangzhou 510515, China
| |
Collapse
|
28
|
Sun YN, Su XR, Xu TJ, Li TW. Genomic characterization and sequence diversity of the β2-microglobulin gene in the miiuy croaker, Miichthys miiuy. Genet Mol Res 2015; 14:10249-57. [PMID: 26345962 DOI: 10.4238/2015.august.28.9] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
β2-Microglobulin (β2m) is related to major histocompatibility complex class I alpha chains, and forms cell-surface glycoproteins that mediate a variety of functions in immune defense. In general, β2m has no isoforms and is not polymorphic in higher vertebrates, but polymorphisms between different alleles have been found in some fish species. In this study, full-length β2m cDNA and genomic sequences were cloned from the miiuy croaker (Miichthys miiuy). The miiuy croaker β2m gene shares many of the same characteristics as other fish species. Three exons and two introns were identified in the miiuy croaker β2m gene; these genomic structural features are similar to those present in other fish. The deduced β2m amino acid sequence exhibited 34.7-90.1% identity with mammal and teleost β2m amino acid sequences. Sequence polymorphism analysis in six individuals identified three alleles that encoded two proteins, confirming that β2m polymorphisms exist in this species. Phylogenetic analysis elucidated the evolutionary history of the β2m protein among warm-blooded vertebrates and bony fish.
Collapse
Affiliation(s)
- Y N Sun
- School of Marine Sciences, Ningbo University, Ningbo, Zhejiang Province, China
| | - X R Su
- School of Marine Sciences, Ningbo University, Ningbo, Zhejiang Province, China
| | - T J Xu
- College of Marine Science, Zhejiang Ocean University, Zhoushan, Zhejiang Province, China
| | - T W Li
- School of Marine Sciences, Ningbo University, Ningbo, Zhejiang Province, China
| |
Collapse
|
29
|
Hu FS, Zhang YL, Ma ZC, Cao QQ, Xu YB, He ZJ, Sun YN. A region-matching method for pulse transit time estimation: potential for improving the accuracy in determining carotid femoral pulse wave velocity. J Hum Hypertens 2015; 29:675-82. [PMID: 25694218 DOI: 10.1038/jhh.2015.9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Revised: 12/15/2014] [Accepted: 01/06/2015] [Indexed: 11/09/2022]
Abstract
Carotid femoral pulse wave velocity (cfPWV) is the 'gold standard' for assessment of arterial stiffness. The reliability of cfPWV measurement depends on the estimation of pulse transit time (PTT). This study aimed to validate a region-matching method for determining PTT and cfPWV against the existing 'foot-to-foot' methods. A cohort of 81 subjects (33 males and 48 females) aged 25-80 (45.1±15.7 years) were studied. PTTs were estimated by the region matching and 'foot-to-foot' methods ('diastole minimum', 'maximum first derivative', 'maximum second derivative' and 'tangent intersection' methods) with manual identification as the reference method and were subsequently used to calculate cfPWV. In a subgroup of 30 individuals, the measurements were repeated after 1 h. There were excellent correlations between cfPWV obtained by the reference method and all the estimated methods (r>0.9, P<0.001 for all), except the diastole minimum method (r=0.793, P<0.001). The region-matching method yielded cfPWV with a better accuracy (mean difference=-0.161 m s(-1), limits of agreement: -0.79 to 0.46 m s(-1)) and repeatability (mean difference=-0.228 m s(-1), intraclass correlation coefficient=0.957) comparing with the 'foot-to-foot' methods. These results demonstrate that the proposed region-matching method is more accurate and suitable for PTT estimation and cfPWV measurement.
Collapse
Affiliation(s)
- F S Hu
- Department of Automation, University of Science and Technology of China, Hefei, PR China.,Research Center for Information Technology of Sports and Health, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei, PR China
| | - Y L Zhang
- Research Center for Information Technology of Sports and Health, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei, PR China
| | - Z C Ma
- Research Center for Information Technology of Sports and Health, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei, PR China
| | - Q Q Cao
- Research Center for Information Technology of Sports and Health, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei, PR China
| | - Y B Xu
- Research Center for Information Technology of Sports and Health, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei, PR China
| | - Z J He
- Research Center for Information Technology of Sports and Health, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei, PR China
| | - Y N Sun
- Research Center for Information Technology of Sports and Health, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei, PR China
| |
Collapse
|
30
|
Wang DD, Zheng YM, Teng LH, Sun YN, Gao W, Wang LM, Wang YH, Li F, Lu DH. Benign giant-cell tumor of the common bile duct: A case report. World J Gastroenterol 2014; 20:15448-15453. [PMID: 25386094 PMCID: PMC4223279 DOI: 10.3748/wjg.v20.i41.15448] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Revised: 05/07/2014] [Accepted: 08/28/2014] [Indexed: 02/06/2023] Open
Abstract
Primary giant-cell tumors rarely arise in the common bile duct. We herein report a case of primary giant-cell tumor of the common bile duct. The patient was an 81-year-old male who was diagnosed with a well-defined 1.2-cm mass projecting into the lumen of the middle common bile duct. Excision of the gallbladder and extrahepatic bile duct and a Roux-en-Y cholangiojejunostomy were performed. Histologically, the tumor had no association with carcinomas of epithelial origin and was similar to giant-cell tumors of the bone. The tumor consisted of a mixture of mononuclear and multinucleated osteoclast-like giant cells. The mononuclear cells showed no atypical features, and their nuclei were similar to those of the multinucleated giant cells. CD68 was expressed on the mononuclear and multinucleated osteoclast-like giant cells, whereas CD163 immunoreactivity was restricted to the mononuclear cells. Six months after the operation, the patient was still alive and had no recurrence. The interest of this case lies in the rarity of this entity, the difficulty of preoperative diagnosis, and this tumor’s possible confusion with other malignant tumors.
Collapse
|
31
|
|
32
|
Sun YN, Qin Y, Zhu ZH, Sun DQ. Development of polymorphic microsatellite markers and the population genetic structure of the half-fin anchovy, Setipinna taty. Genet Mol Res 2014; 13:6293-302. [PMID: 24737520 DOI: 10.4238/2014.april.3.1] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Microsatellite markers for the half-fin anchovy Setipinna taty were developed from the enriched (CA)15 genomic library, and they were used for the population genetic studies of the half-fin anchovy from Chinese coastal areas. Samples were collected from five localities of the East China Sea and the Yellow Sea. Eleven simple sequence repeat markers were used to assess genetic differentiation in 30 individuals at each locality. As a result, 59 alleles were recorded over all loci with an average of 5.36 alleles per locus. Observed and expected heterozygosities ranged from 0.27 to 0.73 and 0.50 to 0.89, respectively. Analysis of molecular variation indicated that the variation within individuals was high (70.68%), while variations of individuals within and among populations were low (22.47 and 6.85%). The phylogenetic tree showed that these populations could be divided into two clusters: populations of the East China Sea, which came from Ninghai, Xiangshan and Zhoushan, and populations of the Yellow Sea, which were from Yantai and Weihai. It revealed that significant geographic structure existed in this species. All of the results indicated that high genetic diversity existed in the half-fin anchovy from different geographic populations. This conclusion was consistent with the classification based on morphological and physiological characteristics.
Collapse
Affiliation(s)
- Y N Sun
- Laboratory of Fish Biogenetics and Immune Evolution, College of Marine Science, Zhejiang Ocean University, Zhoushan, China
| | - Y Qin
- Laboratory of Fish Biogenetics and Immune Evolution, College of Marine Science, Zhejiang Ocean University, Zhoushan, China
| | - Z H Zhu
- Laboratory of Fish Biogenetics and Immune Evolution, College of Marine Science, Zhejiang Ocean University, Zhoushan, China
| | - D Q Sun
- Laboratory of Fish Biogenetics and Immune Evolution, College of Marine Science, Zhejiang Ocean University, Zhoushan, China
| |
Collapse
|
33
|
Ren LP, Qin Y, Li XC, Sun YN, Wang RX. Isolation and characterization of polymorphic microsatellite loci in the swimming crab Portunus trituberculatus (Portunidae). Genet Mol Res 2013; 12:5911-5. [PMID: 24301961 DOI: 10.4238/2013.november.22.19] [Citation(s) in RCA: 3] [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
The Swimming crab Portunus trituberculatus (Portunidae) is an important economically food species. To provide molecular markers for P. trituberculatus, we isolated and characterized polymorphic microsatellite markers. We developed a 5'-anchored genomic library of P. trituberculatus DNA, and derived 45 positive clones. We designed 30 pairs of primers from the sequences of these clones, and 10 of which were polymorphic. The loci were screened in 31 P. trituberculatus individuals; the number of alleles ranged from 2 to 5. The observed heterozygosity ranged from 0.20 to 0.49 and the expected heterozygosity ranged from 0.50 to 0.78. The polymorphism information content per locus ranged from 0.37 to 0.75. These polymorphic microsatellite markers may provide some useful information for the population genetic studies of swimming crab and other Portunus species.
Collapse
Affiliation(s)
- L P Ren
- Laboratory for Marine Living Resources and Molecular Engineering, College of Marine Science, Zhejiang Ocean University, Zhoushan, China
| | | | | | | | | |
Collapse
|
34
|
Fan LL, Zhang QJ, Liu J, Feng J, Gui ZH, Ali U, Zhang L, Hou C, Wang T, Hui YP, Sun YN, Wu ZH. In vivo effect of 5-HT₇ receptor agonist on pyramidal neurons in medial frontal cortex of normal and 6-hydroxydopamine-lesioned rats: an electrophysiological study. Neuroscience 2011; 190:328-38. [PMID: 21684321 DOI: 10.1016/j.neuroscience.2011.06.011] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2011] [Revised: 05/30/2011] [Accepted: 06/04/2011] [Indexed: 11/28/2022]
Abstract
The 5-hydroxytryptamine (5-HT)-7 receptor began to be cloned and pharmacologically characterized close to 20 years ago. It couples positively via G-proteins to adenylyl cyclase and activation of this receptor increases neuronal excitability, and several studies have shown that degeneration of the nigrostriatal pathway leads to an impairment of 5-HT system. Here we reported that systemic and local administration of 5-HT₇ receptor agonist AS 19 produced excitation, inhibition and no change in the firing rate of pyramidal neurons in medial prefrontal cortex (mPFC) of normal and 6-hydroxydopamine-lesioned rats. In normal rats, the mean response of the pyramidal neurons to AS 19 by systemic and local administration in mPFC was excitatory. The inhibitory effect by systemic administration of AS 19 was reversed by GABA(A) receptor antagonist picrotoxinin. Systemic administration of picrotoxinin excited all the neurons examined in normal rats, and after treatment with picrotoxinin, the local administration of AS 19 further increased the firing rate of the neurons. In the lesioned rats, systemic administration of AS 19, at the same doses, also increased the mean firing rate of the pyramidal neurons. However, cumulative dose producing excitation in the lesioned rats was higher than that of normal rats. Systemic administration of AS 19 produced inhibitory effect in the lesioned rats, which was partially reversed by picrotoxinin. The local administration of AS 19, at the same dose, did not change the firing rate of the neurons in the lesioned rats. Systemic administration of picrotoxinin and the local administration of AS 19 did not affect the firing rate of the neurons in the lesioned rats. These results indicate that activity of mPFC pyramidal neurons is regulated through activation of 5-HT₇ receptor by direct or indirect action, and degeneration of the nigrostriatal pathway leads to decreased response of these neurons to AS 19, suggesting dysfunction and/or down-regulation of 5-HT₇ receptor on the pyramidal neurons and GABA interneurons in the lesioned rats.
Collapse
Affiliation(s)
- L L Fan
- Department of Physiology and Pathophysiology, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, PR China
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
35
|
Gui ZH, Zhang QJ, Liu J, Zhang L, Ali U, Hou C, Fan LL, Sun YN, Wu ZH, Hui YP. Unilateral lesion of the nigrostriatal pathway decreases the response of fast-spiking interneurons in the medial prefrontal cortex to 5-HT1A receptor agonist and expression of the receptor in parvalbumin-positive neurons in the rat. Neurochem Int 2011; 59:618-27. [PMID: 21693147 DOI: 10.1016/j.neuint.2011.05.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2011] [Revised: 04/24/2011] [Accepted: 05/10/2011] [Indexed: 11/29/2022]
Abstract
5-Hydroxytryptamine(1A) (5-HT(1A)) receptors are expressed in the prefrontal cortical interneurons. Among these interneurons, calcium-binding protein parvalbumin (PV)-positive fast spiking (FS) interneurons play an important role in regulatory function of the prefrontal cortex. In the present study, the response of medial prefrontal cortex (mPFC) FS interneurons to the selective 5-HT(1A) receptor agonist 8-OH-DPAT and change in expression of 5-HT(1A) receptor on PV-positive neurons were examined in rats with 6-hydroxydopamine (6-OHDA) lesions of the substantia nigra pars compacta (SNc) by using extracellular recording and double-labeling immunofluorescence histochemistry. Systemic administration of 8-OH-DPAT (1-243 μg/kg, i.v.) dose-dependently inhibited the mean firing rate of the FS interneurons in sham-operated and the lesioned rats, respectively. The cumulative doses producing inhibition in the lesioned rats (243 μg/kg) was significantly higher than that of sham-operated rats (27 μg/kg). Furthermore, the local application of 8-OH-DPAT (0.01 μg) in the mPFC inhibited the FS interneurons in sham-operated rats, while having no effect on firing rate of the FS interneurons in the lesioned rats. In contrast to sham-operated rats, the lesion of the SNc in rats did not cause the change of PV-positive neurons in the prelimbic prefrontal cortex, a subregion of the mPFC, whereas the lesion of the SNc markedly reduced in percentage of PV-positive neurons expressing 5-HT(1A) receptors. Our results indicate that degeneration of the nigrostriatal pathway results in the decreased response of FS interneurons in the mPFC to 5-HT(1A) receptor stimulation, which attributes to down-regulation of 5-HT(1A) receptor expression in these interneurons.
Collapse
Affiliation(s)
- Z H Gui
- Department of Physiology and Pathophysiology, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, China
| | | | | | | | | | | | | | | | | | | |
Collapse
|
36
|
Xu TJ, Sun YN, Wang RX. Allelic polymorphism, gene duplication and balancing selection of the MHC class II DAB gene of Cynoglossus semilaevis (Cynoglossidae). Genet Mol Res 2011; 10:53-64. [PMID: 21264816 DOI: 10.4238/vol10-1gmr960] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Major histocompatibility complex (MHC) genes play an important role in the immune response of vertebrates. Allelic polymorphism and evolutionary mechanism of MHC genes have been investigated in many mammals, but much less is known in teleosts. We examined the polymorphism, gene duplication and balancing selection of the MHC class II DAB gene of the half-smooth tongue sole (Cynoglossus semilaevis); 23 alleles were found in this species. Gene duplication manifested as three to six distinct sequences at each domain in the same individuals. Non-synonymous substitutions occurred at a significantly higher frequency than synonymous substitutions in the PBR domain, suggesting balancing selection for maintaining polymorphisms at the MHC II DAB locus. Many positive selection sites were found to act very intensely on antigen-binding sites of MHC class II DAB gene.
Collapse
Affiliation(s)
- T J Xu
- Zhejiang Ocean University, Zhoushan, P.R. China
| | | | | |
Collapse
|
37
|
Chen HC, Chen CK, Yang TH, Kuo LC, Jou IM, Su FC, Sun YN. Model-based segmentation of flexor tendons from magnetic resonance images of finger joints. Annu Int Conf IEEE Eng Med Biol Soc 2011; 2011:8009-8012. [PMID: 22256199 DOI: 10.1109/iembs.2011.6091975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Trigger finger is a common hand disease, causing swelling, painful popping and clicking in moving the affected finger joint. To better evaluate patients with trigger finger, segmentation of flexor tendons from magnetic resonance (MR) images of finger joints, which can offer detailed structural information of tendons to clinicians, is essential. This paper presents a novel model-based method with three stages for automatically segmenting the flexor tendons. In the first stage, a set of tendon contour models (TCMs) is initialized from the most proximal cross-sectional image via two-step ellipse estimation. Each of the TCMs is then propagated to its distally adjacent image by affine registration. The propagation is sequentially performed along the proximal-distal direction until the most distal image is reached, as the second stage of segmentation. The TCMs on each cross-sectional image are refined in the last stage with the snake deformation. MR volumes of three subjects were used to validate the segmentation accuracy. Compared with the manual results, our method showed good accuracy with small average margins of errors (within 0.5 mm) and large overlapping ratio (dice similarity coefficient above 0.8). Overall, the proposed method has great potential for morphological change assessment of flexor tendons and pulley-tendon system modeling for image guided surgery.
Collapse
Affiliation(s)
- H C Chen
- Department of Computer Science and Information Engineering, National Cheng Kung University, Tainan, Taiwan, ROC
| | | | | | | | | | | | | |
Collapse
|
38
|
Wang RX, Xu TJ, Sun YN, He GY. Polymorphic microsatellite loci from two enriched genomic libraries for the genetic analysis of the miiuy croaker, Miichthys miiuy (Sciaenidae). Genet Mol Res 2010; 9:931-4. [PMID: 20486088 DOI: 10.4238/vol9-2gmr806] [Citation(s) in RCA: 7] [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] [Indexed: 11/03/2022]
Abstract
Twelve polymorphic microsatellites from the (AG)(13) and (CA)(13) enriched genomic libraries of Miichthys miiuy were isolated and characterized in a test population; the number of alleles ranged from two to nine. The observed and expected heterozygosities ranged from 0.1923 to 1.0000 and from 0.2633 to 0.8337, respectively. Three loci deviated from Hardy-Weinberg equilibrium, and linkage disequilibrium between five pairs of loci was significant. These polymorphic microsatellite loci can be used for genetic diversity analysis and molecular-assisted breeding of M. miiuy.
Collapse
Affiliation(s)
- R X Wang
- China-UK HUST-RRes Genetic Engineering and Genomics Joint Laboratory, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, P.R. China
| | | | | | | |
Collapse
|
39
|
Chen HC, Wu CH, Lin CJ, Liu YH, Sun YN. Automated segmentation for patella from lateral knee X-ray images. Annu Int Conf IEEE Eng Med Biol Soc 2010; 2009:3553-6. [PMID: 19963588 DOI: 10.1109/iembs.2009.5332588] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
X-ray image segmentation is an important issue in medical image analysis. Due to inconsistent X-ray absorption, the intensities are usually unevenly distributed and noisy in the processed organ, thus the object segmentation becomes difficult. In this paper we propose a new segmentation method for patella from the lateral knee X-ray images based on the active shape model (ASM). At first, a patella shape model is constructed by principal component analysis (PCA) of corresponding landmarks obtained from a set of training shape. As the knee X-ray image usually contains many anatomical structures, we design a strategy based on edge tracing to place the initial shape model as close to the patella boundary as possible. Then, the shape model is deformed and fitted to the patella boundary by using a dual-optimization approach that includes a genetic algorithm (GA) to get the global geometric transform and ASM to deform the shape model iteratively. Consequently, the proposed method can cope with different knee X-ray images and can segment the patella in an automatic procedure. In the experiment, 20 images were tested and promising results are obtained by the proposed method. This method is found useful for the clinical evaluation and biomechanical study of knee.
Collapse
Affiliation(s)
- H C Chen
- Department of Computer Science and Information Engineering, National Cheng Kung University, Tainan, Taiwan, R.O.C
| | | | | | | | | |
Collapse
|
40
|
Wang K, Sun YN, Liu JY, Zhang L, Ye Y, Lin LX, Yan YQ, Chen ZP. The impact of iodine excess on thyroid hormone biosynthesis and metabolism in rats. Biol Trace Elem Res 2009; 130:72-85. [PMID: 19214402 DOI: 10.1007/s12011-009-8315-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [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] [Received: 11/10/2008] [Accepted: 01/05/2009] [Indexed: 11/29/2022]
Abstract
Thyroid function ultimately depends on appropriate iodine supply to the gland. There is a complex series of checks and balances that the thyroid uses to control the orderly utilization of iodine for hormone synthesis. The aim of our study is to evaluate the mechanism underlying the effect of iodine excess on thyroid hormone metabolism. Based on the successful establishment of animal models of normal-iodine (NI) and different degrees of high-iodine (HI) intake in Wistar rats, the content of monoiodotyrosine (MIT), diiodotyrosine (DIT), T(4), and T(3) in thyroid tissues, the activity of thyroidal type 1 deiodinase (D1) and its (Dio1) mRNA expression level were measured. Results showed that, in the case of iodine excess, the biosynthesis of both MIT and DIT, especially DIT, was increased. There was an obvious tendency of decreasing in MIT/DIT ratio with increased doses of iodine intake. In addition, iodine excess greatly inhibited thyroidal D1 activity and mRNA expression. T(3) was greatly lower in the HI group, while there was no significant difference of T(4) compared with NI group. The T(3)/T(4) ratio was decreased in HI groups, antiparalleled with increased doses of iodine intakes. In conclusion, the increased biosyntheses of DIT relative to MIT and the inhibition of thyroidal Dio1 mRNA expression and D1 activity may be taken as an effective way to protect an organism from impairment caused by too much T(3). These observations provide new insights into the cellular regulation mechanism of thyroid hormones under physiological and pathological conditions.
Collapse
Affiliation(s)
- K Wang
- Department of Biochemistry, Tianjin Medical University, Tianjin, China
| | | | | | | | | | | | | | | |
Collapse
|
41
|
Lu Y, Sun YN, Wu X, Sun Q, Liu FY, Xing GG, Wan Y. Role of alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionate (AMPA) receptor subunit GluR1 in spinal dorsal horn in inflammatory nociception and neuropathic nociception in rat. Brain Res 2008; 1200:19-26. [PMID: 18289517 DOI: 10.1016/j.brainres.2008.01.012] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2007] [Revised: 12/05/2007] [Accepted: 01/06/2008] [Indexed: 11/29/2022]
Abstract
The present study aims to investigate changes of spinal cord AMPA receptor GluR1 and its phosphorylation in inflammatory and neuropathic pain. Complete Freund's adjuvant (CFA) injection into the hind paw produced inflammatory thermal hyperalgesia that was assessed by decreased response latency to radiant heat; spinal nerve ligation (SNL) was used to induce mechanical allodynia that was evaluated with von Frey hairs. By method of Western blot, expression of GluR1 (the main subunit of the AMPA receptor) and its phosphorylated forms at serine 845 (pGluR1-Ser845) and at serine 831 (pGluR1-Ser831) in the spinal dorsal horn was observed. It was found that the expression of pGluR1-Ser845 and pGluR1-Ser831 increased significantly at 1 h after CFA injection, reached peak at 4 h and returned to the normal control level at 24 h, while no significant change was detected in GluR1 itself. In contrast, neither GluR1 nor pGluR1 showed any significant change in rats following SNL. These results suggest that phosphorylated GluR1 (pGluR1-Ser845 and pGluR1-Ser831) might play a role in the induction of inflammatory but not neuropathic pain.
Collapse
Affiliation(s)
- Yue Lu
- Neuroscience Research Institute, Peking University, 38 Xueyuan Road, Beijing 100083, China
| | | | | | | | | | | | | |
Collapse
|
42
|
Abstract
In computerized image and graphic applications, texture mapping is one of the most commonly used methods to improve the realism or to enhance the visual effect of object rendering without too much increase in computational complexity. The conventional method usually has to transfer three-dimensional (3D) object to the polygonal structure, and is computationally expensive. As the medical data are mostly in voxel format, the polygonal structure is not efficient or requires more complicated mechanism in retrieving the internal information of medical data. In this paper, we propose a new texture mapping method, based on flattening a chain-coded 3D surface, to handle the voxel-based data directly. The method flattens the 3D object surface onto a two-dimensional (2D) plane and then uses 2D metamorphosis to generate the correspondences between object surface and texture image. Therefore, polygon transformation is no longer necessary and texture mapping is handled with inexpensive 2D morphing. More importantly, the internal information of medical data can be easily preserved and utilized further. Experimental results have shown the effectiveness and efficiency of the proposed algorithm.
Collapse
Affiliation(s)
- T L Weng
- Department of Computer Science and Information Engineering, National Cheng Kung University, No. 1 University Road, Tainan, Taiwan, ROC
| | | | | | | |
Collapse
|
43
|
Abstract
The detection of object boundary is an interesting and challenging task in computer vision and medical image processing. The active contour model (snake model) has attracted much attention for object boundary detection in the past decade. However, due to the lack of understanding on the effect of different energy terms to the behavior of related objective functions for an image, the assignment of weights for different energy terms in this model is usually fulfilled empirically. Few discussions have been brought out specifically for assigning these weights automatically. In this paper, a novel self-learning segmentation framework, based on the snake model is proposed and applied to the detection of cardiac boundaries from ultrasonic images. The framework consists of a learning section and a detection section, and provides a training mechanism to obtain the weights from a desired object contour given manually. This mechanism first employs Taguchi's method to determine the weight ratios among distinct energy terms, followed by a weight refinement step with a genetic algorithm. The refined weights can be treated as the a priori knowledge embedded in the manually defined contour and be used for subsequent contour detection. Experiments with both synthetic and real echocardiac images were conducted with satisfactory outcomes. Results also show that the present method can be used to analyze successive images of the same object with only one training contour. Finally, the validity of the weight determining process was verified by the analysis of variance method (ANOVA).
Collapse
Affiliation(s)
- D H Chen
- Department of Computer Science and Information Engineering, National Cheng-Kung University, ROC, Tainan, Taiwan
| | | |
Collapse
|
44
|
Abstract
OBJECTIVES To objectively evaluate the contents of corpus cavernous tissue in impotent men using an automated novel image analysis system. METHODS Thirty-three impotent men and 2 normal potent men (controls) underwent corpus cavernous biopsies. The procedures were performed using a Biopty gun under local anesthesia. The obtained specimens were stained with Masson's trichome technique, and the collagen fiber contents were evaluated by a computerized morphometric analysis method. In addition, we estimated the intraobserver and interobserver reliability of this automated image analysis system. RESULTS No major complication was noted during or after the biopsies. Of the 33 impotent patients, 3 were diagnosed as having psychogenic, 11 as having arteriogenic, 13 as having venogenic, 1 as having neurogenic, and 5 as having idiopathic impotence. The collagen fiber percentages in the 35 men were as follows: normal potent: 48.2% +/- 1.4%, psychogenic 55.2% +/- 11.6%, arteriogenic 73.2% +/- 4.4%, venogenic 66.5% +/- 4.2%, neurogenic 76.9%, and idiopathic 77.4% +/- 4.2%. Significant differences were found between the normal potent and arteriogenic groups (P <0.05) and between the normal potent and idiopathic groups (P <0.05). Patients older than 60 years had a higher collagen fiber content (70.4% +/- 3.7%) than those younger than 50 years old (58.6% +/- 5.2%). The interobserver and intraobserver variances were both negligible for this automated image analysis system. This method significantly reduced the amount of variation introduced by the intra-rater reliability of a technician compared with the manual method. CONCLUSIONS The present automated image analysis system is believed to be a reliable, accurate quantitative measurement tool for studies of penile tissue. Cavernous biopsy is a rapid, safe, and representative modality to study penile disease. An increase in cavernous collagen fibers (or corporal fibrosis) is considered an important factor in impaired erectile function.
Collapse
Affiliation(s)
- J S Lin
- Department of Urology, Medical College, National Cheng Kung University, Tainan, Taiwan
| | | | | | | | | |
Collapse
|
45
|
Abstract
Indirect Response Models account for the pharmacodynamics of numerous drugs which inhibit or stimulate the production (k(in)) or loss (k(out)) of the response variable (R). The dose and pharmacokinetics, capacity (S(max), I(max)), and potency (SC(50), IC(50)) factors of the Hill function incorporated in these models are the primary determinants of overall responsiveness. However, the initial or baseline value for the response (R(0) = k(in)/k(out)) should also be considered as an important factor for the net response. Using Indirect Response Model III (stimulation of input) as an example, the net area under the effect curve (AUEC(NET)) can be proportional to the R(0) values. Such a feature is demonstrated in this report by computer simulations, by examination of the integral of the simulated response vs time profiles, and with examples from the literature. Also shown is an adjustment of R(0) when the therapeutic agent is an endogenous substance. These analyses show that the role of R(0) and k(in) should not be overlooked as determinants of indirect responses and source of variation among subjects or patient groups.
Collapse
Affiliation(s)
- Y N Sun
- Department of Pharmaceutics, School of Pharmacy, State University of New Your at Buffalo, Buffalo, New York 14260, USA
| | | |
Collapse
|
46
|
Lee TY, Sun YN, Lin YC, Lin L, Lee C. Three-dimensional facial model reconstruction and plastic surgery simulation. IEEE Trans Inf Technol Biomed 1999; 3:214-20. [PMID: 10719485 DOI: 10.1109/4233.788583] [Citation(s) in RCA: 23] [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] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Facial model reconstruction and surgical simulation are essential to plastic surgery in today's medicine. Both can help surgeons to design appropriate repair plans and procedures prior to actual surgery. In this paper, we exploit a metamorphosis technique in our new design. First, using metamorphosis and vision techniques, we can establish three-dimensional facial models from a given photo. Second, we design several morphing operators, including augmentation, cutting, and lacerating. Experiments show that the proposed algorithms can successfully create acceptable facial models and generate realistically visual effects of surgical simulation.
Collapse
Affiliation(s)
- T Y Lee
- Department of Computer Science and Information Engineering, National Cheng-Kung University, Tainan, Taiwan, R.O.C
| | | | | | | | | |
Collapse
|
47
|
Abstract
Semi-boundary (SB) data structure is a compact voxel surface representation of the structure from the medical images. It represents only the boundary of the extracted structure and only an opaque object boundary involved in a 3D dataset can be visualized. Its computational complexity is in proportion to the number of SB voxels. In this paper, we propose schemes to reduce the number of projections in two ways. First, in conjunction with neighboring code, we exploit a set of visibility tables to cull some of the invisible SB voxels. Second, we exploit three pass rotations and an incremental approach to quickly determine the projection position for each SB voxel during rendering. With these two combinations, we significantly improve SB rendering performance. As a result, we can achieve an interactive rendering speed on general purpose workstations for our medical applications.
Collapse
Affiliation(s)
- T Y Lee
- Visual System Laboratory, Department of Computer Science and Information Engineering, National Cheng Kung University, Tainan, Taiwan, ROC.
| | | | | | | |
Collapse
|
48
|
Abstract
We describe a low-cost three-dimensional (3-D) virtual colonoscopy system that is a noninvasive technique for examining the entire colon and can assist physicians in detecting polyps inside the colon. Using the helical CT data and proposed techniques, we can three-dimensionally reconstruct and visualize the inner surface of the colon. We generate high resolution of video views of the colon interior structures as if the viewer's eyes were inside the colon. The physicians can virtually navigate inside the colon in two different modes: interactive and automatic navigation, respectively. For automatic navigation, the flythrough path is determined a priori using the 3-D thinning and two-pass tracking schemes. The whole colon is spatially subdivided into several cells, and only potentially visible cells are taken into account during rendering. To further improve rendering efficiency, potentially visible cells are rendered at different levels of detail. Additionally, a chain of bounding volume in each cell is used to avoid penetrating through the colon during navigation. In comparison with previous work, the proposed system can efficiently accomplish required preprocessing tasks and afford adequate rendering speeds on a low-cost PC system.
Collapse
Affiliation(s)
- T Y Lee
- Department of Computer Science and Information Engineering, National Cheng-Kung University, Tainan, Taiwan, R.O.C.
| | | | | | | | | |
Collapse
|
49
|
Sun YN, Lee HJ, Almon RR, Jusko WJ. A pharmacokinetic/pharmacodynamic model for recombinant human growth hormone effects on induction of insulin-like growth factor I in monkeys. J Pharmacol Exp Ther 1999; 289:1523-32. [PMID: 10336548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023] Open
Abstract
The pharmacokinetics of recombinant human growth hormone (rhGH) and its effects on the induction of insulin-like growth factor I (IGF-I) were studied in juvenile rhesus monkeys. Disposition profiles of rhGH from two short-term i.v. infusion studies were described by a two-compartment model yielding a clearance of 16.1 ml/min and T1/2 of 2.0 h. Four rhGH treatment groups were included in this study: group A, ProLease rhGH (24 mg), a sustained-release microsphere formulation; group B, a single s.c. injection plus an implanted osmotic pump (24.4 mg); group C, a single s.c. injection (25.9 mg); group D, daily 0.86-mg s.c. injection for 28 days. Their rhGH input profiles were analyzed by a numerical deconvolution method. ProLease and osmotic pump provided zero-order inputs of rhGH and maintained the serum rhGH concentrations around 9 to 13 ng/ml for 16 (group A) and 30 days (group B). For s.c. injections, rhGH underwent first-order absorption. An indirect response model was applied based on use of a Hill function for stimulation of IGF-I production. Parameter values obtained included Smax = 2.2, SC50 = 6.5 ng/ml, and gamma (slope coefficient) = 6.8, which were applicable to all treatments. The area under effect curve showed group B to be most effective for IGF-I induction, whereas group A produced the highest peak level in 16 days. Group C had the lowest induction among the four groups, despite being given the highest dose. Group D had modest IGF-I induction, but the pulsatile rhGH input is less effective than continuous input provided by ProLease. Our pharmacokinetic/pharmacodynamic model demonstrates that ProLease and osmotic pump delivery were best able to maintain rhGH level above the s.c.50 value, which provided more effective IGF-I induction compared with the single or daily subcutaneous injections in solution.
Collapse
Affiliation(s)
- Y N Sun
- Department of Pharmaceutics, School of Pharmacy, State University of New York at Buffalo, Buffalo, New York, USA
| | | | | | | |
Collapse
|
50
|
Lin XZ, Chang TM, Tsai HM, Sun YN, Sheu BS, Jen CM. Liver, spleen and tumor volume measured by personal computer. Hepatogastroenterology 1999; 46:838-42. [PMID: 10370623] [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
BACKGROUND/AIMS Computed tomography (CT) scans are common examinations for patients with chronic liver diseases. To quantitate the organ or tumor volume from the scans and to accomplish the task in an efficient way with the most economic equipment, we developed a system based on a personal computer. METHODOLOGY We used color-markers and transparency to sketch the edges of liver, hepatoma, and spleen. Each organ or tumor of interest is marked out by fine-point markers on pieces of transparency. The sketch was scanned into a digitized image format on a personal computer (Pentium 133). The calculation involves edge detection, three-dimensional reconstruction, and voxel counting. By using summation-of-the-area and trapezoid approximation technique, the voxels of each structure are counted. In this study, we illustrate the potential application in the management of a hepatic cancer patient. RESULTS After digitalization, the data size of CT images is about 1 to 1.5 megabytes. It takes less than 5 min to complete volume calculation. CONCLUSIONS By this method, tumor load before and after chemotherapy can be estimated easily and accurately. This would be helpful in clinical practice.
Collapse
Affiliation(s)
- X Z Lin
- Department of Internal Medicine, National Cheng Kung University and Hospital, Tainan, Taiwan.
| | | | | | | | | | | |
Collapse
|