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Privilege Flow Oriented Intrusion Detection Based on Hidden Semi-Markov Model

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Privilege Flow Oriented Intrusion Detection Based on Hidden ...

Searching for^(76)Ge neutrinoless double beta decay with the CDEX-1B experiment

The 1st Chinese Conference on Trusted Computing and information Security

作者： zhong An-ming, {2. chun-fu college of information technology and sciences. nankai university. Tianjin 300071 .china State Key Laboratory of information Security, Institute of Software of Chinese Academy of Science, Beijing 100039,china

＜正＞ A privilege flow oriented intrusion detection method based on HSMM （ Hidden semi-Markov Model） is discussed. The privilege flow model and HSMM are incorporated in the implementation of an anomaly detection IDS （Intrusion Detection System）. Using the data set of DARPA 1998, our experiment results reveal good detection performance and acceptable computation cost.

关键词： intrusion detection privilege flow model HSMM

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Chinese Physics C 2024年第10期48卷 11-22页

作者： Bing-Tao Zhang Jun-Zheng Wang Li-Tao Yang Qian Yue Ke-Jun Kang Yuan-Jing Li Hai-Peng An C.Greeshma jian-Ping Chang Yun-Huan Chen jian-Ping Cheng Wen-Han Dai Zhi Deng Chang-Hao Fang Xin-Ping Geng Hui Gong Qiu-Ju Guo Xu-Yuan Guo Li He Sheng-{2. He Jin-Wei Hu Han-Xiong Huang Tu-Chen Huang Hai-Tao jia Xi jiang S.Karmakar Hao-Bin Li jian-Min Li Jin Li Qian-Yun Li Ren-{2.-Jie Li Xue-Qian Li Yu-Lan Li Yi-Fan Liang Bin Liao Fong-Kay Lin Shin-Ted Lin jia-Xuan Liu Shu-Kui Liu Yan-Dong Liu Yu Liu Yuan-Yuan Liu zhong-Zhi Liu Hao Ma Yu-Cai Mao Qi-Yuan Nie Jin-Hua Ning Hui Pan Ning-chun Qi Jie Ren Xi-Chao Ruan Ze She Manoj Kumar Singh Tian-Xi Sun Chang-jian Tang Wei-You Tang Yang Tian Guang-fu Wang Li Wang Qing Wang Yu-Feng Wang Yun-Xiang Wang Henry-Tsz-King Wong Shi-Yong Wu Yu-Cheng Wu Hao-Yang Xing Rui Xu Yin Xu Tao Xue Yu-Lu Yan Nan Yi chun-Xu Yu Hai-Jun Yu jian-Feng Yue {2. Zeng Zhi Zeng Feng-Shou Zhang Lei Zhang Zhen-Hua Zhang Zhen-Yu Zhang Kang-Kang Zhao {2.-Gang Zhao Ji-Fang Zhou Zu-Ying Zhou Jing-Jun Zhou Key Laboratory of Particle and Radiation Imaging(Ministry of Education)and Department of Engineering Physics Tsinghua UniversityBeijing 100084 Department of Physics Tsinghua UniversityBeijing 100084 Institute of Physics Academia SinicaTaipei 11529 NUCTECH Company Beijing 100084 YaLong River Hydropower Development Company Chengdu 610051 college of Nuclear Science and technology Beijing Normal UniversityBeijing 100875 college of Physics Sichuan UniversityChengdu 610065 School of Physics Peking UniversityBeijing 100871 Department of Nuclear Physics China Institute of Atomic EnergyBeijing 102413 Sino-French Institute of Nuclear and technology Sun Yat-sen UniversityZhuhai 519082 School of Physics Nankai UniversityTianjin 300071 Department of Physics Banaras Hindu UniversityVaranasi 221005 Department of Physics Beijing Normal UniversityBeijing 100875

We operated a p-type point contact high purity germanium(PPCGe)detector(CDEX-1B,1.008 kg)in the china Jinping Underground Laboratory(CJPL)for 500.3 days to search for neutrinoless double beta(0νββ)decay of^(76)Ge.A total of 504.3 kg⋅day effective exposure data was *** anti-coincidence and the multi/single-site event(MSE/SSE)discrimination methods were used to suppress the background in the energy region of interest(ROI,1989–2.89 keV for this work)with a factor of 2..A background level of 0.33 counts/(keV⋅kg⋅yr)was *** lower limit on the half life of^(76)Ge 0νββdecay was constrained as T_(1/2.^(0ν)>1.0×10^(2.)yr(90%C.L.),corresponding to the upper limits on the effective Majorana neutrino mass:2.7.5 eV.

关键词： neutrinoless double beta decay CDEX point-contact germanium detector ^(76)Ge

Isometric 3D Shape Partial Matching Using GD-DNA

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Journal of Computer Science & technology 2018年第6期33卷 1178-1191页

作者： Guo-Guang Du Cong-Li Yin ming-Quan Zhou zhong-Ke Wu Ya-{2. Fan fu-Qing Duan Peng-Bo Zhou college of information Science and {2. Beijing Normal University Beijing 100875 China Engineering Research Center of Virtual Reality and Applications Ministry of Education Beijing 100875 China

Isometric 3D shape partial matching has attracted a great amount of interest, with a plethora of applicationsranging from shape recognition to texture mapping. In this paper, we propose a novel isometric 3D shape partial matchingalgorithm using the geodesic disk Laplace spectrum （GD-DNA）. It transforms the partial matching problem into the geodesicdisk matching problem. Firstly, the largest enclosed geodesic disk extracted from the partial shape is matched with geodesicdisks from the full shape by the Laplace spectrum of the geodesic disk. Secondly, Generalized Multi-Dimensional Scalingalgorithm （GMDS） and Euclidean embedding are conducted to establish final point correspondences between the partialand the full shape using the matched geodesic disk pair. The proposed GD-DNA is discriminative for matching geodesicdisks, and it can well solve the anchor point selection problem in challenging partial shape matching tasks. Experimentalresults on the Shape Retrieval Contest {2.6 （SHREC＇16） benchmark validate the proposed method, and comparisons withisometric partial matching algorithms in the literature show that our method has a higher precision.

关键词： isometric partial matching geodesic disk Laplace spectrum

Three-dimensional visualization of the functional fascicular groups of a long-segment peripheral nerve

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Neural Regeneration Research 2018年第8期13卷 1465-1470页

作者： jian Qi Wei-Ya Wang Ying-chun {2. jia-ming Zhou Peng Luo Ping Tang Cai-Feng He Shuang Zhu Xiao-Lin Liu Yi Zhang Department of Orthopedics and Microsurgery First Affiliated Hospital of Sun Yat-sen University Department of Plastic Surgery Nanxishan Hospital of Guangxi Zhuang Autonomous Region Automation college Guangdong University of Technology Scientific Research Department Sixth Affiliated Hospital of Sun Yat-sen University Department of Orthopedics Shenzhen Nanshan People's Hospital zhongshan university Medical Equipment Co. Ltd. Department of Joint and Orthopedics Orthopedic Center Zhujiang Hospital of Southern Medical University Department of Plastic Surgery First Affiliated Hospital of Sun Yat-sen University

The three-dimensional（3D） visualization of the functional bundles in the peripheral nerve provides direct and detailed intraneural spatial information. It is useful for selecting suitable surgical methods to repair nerve defects and in optimizing the construction of tissue-engineered nerve grafts. However, there remain major technical hurdles in obtaining, registering and interpreting 2. images, as well as in establishing 3D models. Moreover, the 3D models are plagued by poor accuracy and lack of detail and cannot completely reflect the stereoscopic microstructure inside the nerve. To explore and help resolve these key technical problems of 3D reconstruction, in the present study, we designed a novel method based on re-imaging techniques and computer image layer processing technology. A 2.-cm ulnar nerve segment from the upper arm of a fresh adult cadaver was used for acetylcholinesterase（ACh E） staining. Then, 2. panoramic images were obtained before and after ACh E staining under the stereomicroscope. Using layer processing techniques in Photoshop, a space transformation method was used to fulfill automatic registration. The contours were outlined, and the 3D rendering of functional fascicular groups in the long-segment ulnar nerve was performed with Amira 4.1 software. The re-imaging technique based on layer processing in Photoshop produced an image that was detailed and accurate. The merging of images was accurate, and the whole procedure was simple and fast. The least square support vector machine was accurate, with an error rate of only 8.2.%. The 3D reconstruction directly revealed changes in the fusion of different nerve functional fascicular groups. In conclusion. The technique is fast with satisfactory visual reconstruction.

关键词： nerve regeneration peripheral nerve ulnar nerve three-dimensional reconstruction functional fascicular group registration segmentation locating spots auto-registration acetylcholinesterase neural regeneration

Incidence and prognosis of olfactory and gustatory dysfunctions related to SARS-CoV-2.Omicron strain infection in china:A national multicenter survey of 35,566 individuals

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World Journal of Otorhinolaryngology-Head and Neck Surgery 2024年第2期10卷 113-120页

作者： Meng-Fan Liu Rui-Xia Ma Xian-Bao Cao Hua Zhang Shui-Hong Zhou Wei-Hong jiang Yan jiang Jing-Wu Sun Qin-Tai Yang Xue-{2. Li Ya-Nan Sun Li Shi Min Wang Xi-Cheng Song fu-Quan Chen Xiao-Shu Zhang Hong-Quan Wei Shao-Qing Yu Dong-Dong Zhu Luo Ba Zhi-Wei Cao Xu-Ping Xiao Xin Wei Zhi-Hong Lin Feng-Hong Chen chun-Guang Shan Guang-Ke Wang Jing Ye Shen-Hong Qu Chang-Qing Zhao Zhen-Lin Wang Hua-Bin Li Feng Liu Xiao-Bo Cui Sheng-Nan Ye Zheng Liu Yu Xu Xiao Cai Wei Huang Ru-Xin Zhang Yu-Lin Zhao Guo-Dong Yu Guang-Gang Shi Mei-Ping Lu Yang Shen Yu-Tong Zhao jia-Hong Pei Shao-Bing Xie Long-Gang Yu Ye-Hai Liu Shao-Wei Gu Yu-Cheng Yang Lei Cheng jian-Feng liu Graduate School of Beijing university of Chinese Medicine BeijingChina Department of Otorhinolaryngology Head and Neck Surgery China-Japan Friendship HospitalBeijingChina Department of Otorhinolaryngology Head and Neck Surgery The First People's Hospital of YinchuanYinchuanChina Department of Otorhinolaryngology The First People's Hospital of Yunnan ProvinceKunmingChina Department of Otorhinolaryngology The First Affiliated Hospital of Xinjiang Medical UniversityUrumqiChina Department of Otorhinolaryngology Head and Neck Surgery The First Affiliated Hospital of Zhejiang University School of MedicineHangzhouChina Department of Otorhinolaryngology Head and Neck Surgery Xiangya Hospital Central South UniversityChangshaChina Department of Otorhinolaryngology Head and Neck Surgery The Affiliated Hospital of Qingdao UniversityQingdaoChina Department of Otorhinolaryngology Head and Neck Surgery The First Affiliated Hospital of USTCHefeiChina Department of Otorhinolaryngology Head and Neck Surgery The Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhouChina Department of Otorhinolaryngology Head and Neck Surgery Qilu Hospital of Shandong UniversityJinanChina Department of Otorhinolaryngology Head and Neck Surgery The Second Affiliated Hospital of Harbin Medical UniversityHarbinChina Department of Otolaryngology The Second Hospital of Shandong UniversityShandong UniversityJinanChina Department of Otorhinolaryngology Head and Neck Surgery Peking University People's HospitalBeijingChina Department of Otorhinolaryngology Head and Neck Surgery Yantai Yuhuangding HospitalQingdao UniversityYantaiChina Department of Otorhinolaryngology Head and Neck Surgery Xijing HospitalThe Fourth Military Medical UniversityXi'anChina Gansu Provincial Center for Disease Control and Prevention LanzhouChina Department of Otorhinolaryngology Head and Neck Surgery The First Affiliated Hospital of China Medical UniversityShenyangChina Department of Otorhinolaryngology Head and Neck Surgery Tongji Hospit

Objective:This cross-sectional study aimed to determine the epidemiology of olfactory and gustatory dysfunctions related to COVID-19 in ***:This study was conducted by 45 tertiary Grade-A hospitals in *** and offline questionnaire data were obtained from patients infected with COVID-19 between December 2.,2.2.,and February 2.,*** collected information included basic demographics,medical history,smoking and drinking history,vaccination history,changes in olfactory and gustatory functions before and after infection,and other postinfection symptoms,as well as the duration and improvement status of olfactory and gustatory ***:Complete questionnaires were obtained from 35,566 *** overall incidence of olfactory and taste dysfunction was 67.75%.Being female or being a cigarette smoker increased the likelihood of developing olfactory and taste *** received four doses of the vaccine or having good oral health or being a alcohol drinker decreased the risk of such *** infection,the average olfactory and taste VAS scores were 8.41 and 8.51,respectively;after infection,they decreased to 3.69 and 4.2. and recovered to 5.83 and 6.55 by the time of the *** median duration of dysosmia and dysgeusia was 15 and 12.days,respectively,with 0.5%of patients having symptoms lasting for more than 2. *** overall self-reported improvement rate was 59.16%.Recovery was higher in males,never smokers,those who received two or three vaccine doses,and those that had never experienced dental health issues,or chronic accompanying ***:The incidence of dysosmia and dysgeusia following infection with the SARS-CoV-2.virus is high in *** and prognosis are influenced by several factors,including sex,SARS-CoV-2.vaccination,history of head-facial trauma,nasal and oral health status,smoking and drinking history,and the persistence of accompanying symptoms.

关键词： epidemiologic studies incidence olfactory disorders prognosis SARS-CoV-2 taste disorders

Combination of virtual screening protocol by in silico towards the discovery of novel HPPD inhibitors

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Combination of virtual screening protocol by in silico towar...

Significant loss of soil inorganic carbon at the continental scale

第十届全国化学生物学学术会议

作者： Yi-Na Sun Ke-Han Yi ming-Qiang Li Hai-Feng Cao jia-{2. Li Fei Ye Ying fu Department of Applied Chemistry College of ScienceNortheast Agricultural University

4-Hydroxyphenylpyruvate dioxygenase(EC 1.***.11.2., HPPD) is a potent new bleaching herbicide target. Therefore, in silico structure-based virtual screening was performed in order to speed up the identification of promising HPPD inhibitors. In this study, an integrated virtual screening protocol by combining 3D-pharmacophore model, molecular docking and molecular dynamics(MD) simulation was established to find novel HPPD inhibitors from four commercial databases. 3D-pharmacophore Hypo1 model was applied to efficiently narrow potential hits. The hit compounds were subsequently submitted to molecular docking studies, showing four compounds as potent inhibitor with the mechanism of the Fe(Ⅱ) coordination and interaction with Phe360, Phe403 and Phe398. MD result demonstrated that nonpolar term of compound 3881 made great contributions to binding affinities. It showed an IC being 2.49 μM against At HPPD in vitro. The results provided useful information for developing novel HPPD inhibitors, leading to further understanding of the interaction mechanism of HPPD inhibitors.

关键词： HPPD inhibitors Structure-based design Pharmacophore model Molecule docking Virtual screening

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National Science Review 2022年第2期9卷 13-20页

作者： Xiao-Dong Song Fei Yang Hua-Yong Wu Jing Zhang De-Cheng Li Feng Liu Yu-Guo Zhao Jin-Ling Yang Bing Ju Chong-Fa Cai Biao Huang Huai-Yu Long Ying Lu Yue-Yu Sui Qiu-Bing Wang Ke-Ning Wu Feng-Rong Zhang ming-Kui Zhang Zhou Shi Wan-Zhu Ma Gang Xin Zhi-Ping Qi Qing-Rui Chang En Ci Da-Gang Yuan Yang-Zhu Zhang Jun-Ping Bai jia-Ying Chen Jie Chen Yin-Jun Chen Yun-{2. Dong chun-Lan Han Ling Li Li-ming Liu jian-Jun Pan fu-Peng Song fu-Jun Sun Deng-Feng Wang Tian-Wei Wang Xiang-Hua Wei Hong-Qi Wu Xia Zhao Qing Zhou Gan-Lin Zhang State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil Science Chinese Academy of Sciences college of Advanced Agricultural sciences University of Chinese Academy of Sciences college of Resources and Environment Huazhong Agricultural University Institute of Agricultural Resources and Regional Planning Chinese Academy of Agricultural Sciences college of Natural Resources and Environment South China Agricultural University Northeast Institute of Geography and Agroecology Chinese Academy of Sciences college of Land and Environment Shenyang Agricultural University School of Land Science and technology China University of Geosciences college of Land Science and technology China Agricultural University college of Environmental and Resource sciences Zhejiang University Institute of Digital Agriculture Zhejiang Academy of Agricultural Sciences college of Agriculture Heilongjiang Bayi Agricultural University Tropical Crops Genetic Resources Institute Chinese Academy of Tropical Agricultural Sciences college of Natural Resources and Environment Northwest A & F University college of Resources and Environment Southwest University college of Resources Sichuan Agricultural University college of Resources and Environment Hunan Agricultural University Institute of Agricultural Product Quality Standard and Testing Research Tibet Academy of Agricultural and Animal Husbandry Sciences School of Agricultural sciences Zhengzhou University Institute of Agriculture Environment and Resources Research Shanxi Academy of Agricultural Sciences college of Resources and Environment Henan Agricultural University college of Resources and Environment China Agricultural University college of Resources and Environmental sciences Nanjing Agricultural University college of Resources and Environment Shandong Agricultural University Agricultural college Guangxi University college of Grassland and Environment Science Xinjiang Agricultural University college of Geographical Science Qinghai Normal University

Widespread soil acidification due to atmospheric acid deposition and agricultural fertilization may greatly accelerate soil carbonate dissolution and ***,to date,few studies have addressed these ***,we use meta-analysis and nationwide-survey datasets to investigate changes in soil inorganic carbon(SIC) stocks in *** observe an overall decrease in SIC stocks in topsoil(0-30 cm)(11.33 g C m-2.r-1) from the 1980 s to the 2.10 *** SIC stocks have decreased by～8.99±2.2.%(1.37±0.37 Pg C).The average SIC losses across china(0.046 Pg C yr-1) and in cropland(0.016 Pg C yr-1) account for～17.6%-2..0% of the terrestrial C sink and 57.1% of the soil organic carbon sink in cropland,*** deposition and climate change have profound influences on SIC *** estimate that～19.12.-19.47% of SIC stocks will be {2.rther lost by *** consumption of SIC may offset a large portion of global efforts aimed at ecosystem carbon sequestration,which emphasizes the importance of achieving a better understanding of the indirect coupling mechanisms of nitrogen and carbon cycling and of effective countermeasures to minimize SIC loss.

关键词： china soil inorganic carbon stocks global change carbonate soil acidification

An-Luo-Hua-Xian Pill Improves the Regression of Liver Fibrosis in Chronic Hepatitis B Patients Treated with Entecavir

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Journal of Clinical and Translational Hepatology 2023年第2期11卷 304-313页

作者： Yi-Qi Liu Chi Zhang jia-Wen Li Li-Hua Cao Zhan-Qing Zhang Wei-Feng Zhao Qing-Hua Shang Da-Zhi Zhang An-Lin Ma Qing Xie Hong-Lian Gui Guo Zhang Ying-Xia Liu jia Shang Shi-Bin Xie Jun Li Xu-Qing Zhang Zhi-Qiang Zou Yu-Ping Chen Zong Zhang {2.-Xiang Zhang Jun Cheng fu-chun Zhang Li-Hua Huang jia-Bin Li Qing-Hua Meng Hai-Bin Yu Yu-Qiang Mi Yan-zhong Peng Zhi-Jin Wang Li-{2. Chen Fan-Ping Meng Wan-Hua Ren Lang Bai Yi-Lan Zeng Rong Fan Xian-Zhi Lou Wei-Feng Liang Hui Liu Hui Zhuang Hong Zhao Gui-Qiang Wang Department of Infectious Disease Center for Liver DiseasePeking University First HospitalBeijingChina Department of Hepatology The Third Hospital of QinhuangdaoQinhuangdaoHebeiChina Department of Infectious Disease Shanghai Public Health Clinical CenterFudan UniversityShanghaiChina Department of Infectious Disease Xinxiang Medical University Affiliated Third HospitalXinxiangHenanChina No.88 Hospital of Chinese People’s Liberation Army(PLA) JinanShandongChina Department of Infectious Diseases The Second Affiliated Hospital of Chongqing Medical UniversityChongqingChina Department of Infectious Disease China-Japan Friendship HospitalBeijingChina Department of Infectious Diseases Ruijin HospitalSchool of MedicineShanghai Jiaotong UniversityShanghaiChina Department of Gastroenterology The People’s Hospital of Guangxi Zhuang Autonomous RegionNanningGuangxiChina Department of Infectious Diseases The Third People’s Hospital of ShenzhenShenzhenGuangdongChina Department of Infectious Diseases The People’s Hospital of Henan ProvinceZhengzhouHenanChina Department of Infectious Disease The Third Affiliated Hospital of Sun-Yat Sen UniversityGuangzhouGuangdongChina Department of Infectious Diseases Jiangsu Province HospitalThe First Affiliated Hospital of Nanjing Medical UniversityNanjingJiangsuChina Department of Infectious Diseases The Southwest Hospital of Army Medical UniversityChongqingChina Yantai Infectious Diseases Hospital YantaiShandongChina Department of Hepatology Baoding Infectious Diseases HospitalBaodingHebeiChina Department of Integrated Traditional Chinese Medicine(TCM)and Western Medicine Jinan Infectious Diseases HospitalShandong UniversityJinanShandongChina Department of Integrated TCM and Western Medicine in Hepatology The Sixth People’s Hospital of ShenyangShenyangLiaoningChina Beijing Ditan Hospital Capital Medical UniversityBeijingChina Department of Infectious Diseases Guangzhou Eighth People’s HospitalGuangzhou Medical UniversityGuangzhouGuangdon

Background and Aims:Chronic hepatitis B(CHB)can cause liver fibrosis and lead to cirrhosis and *** the effectiveness of antiviral therapy to reverse liver fibrosis is limited,We aimed to evaluate the effect of An-Luo-Hua-Xian pill(ALHX)on fibrosis regression in CHB patients treated with entecavir(ETV).Methods:Treatment-naïve patients with CHB were randomly treated with ETV alone or combined with ALHX(ETV+ALHX)between October 1,2.13 and December 31,***,laboratory,and liver histology data before and after 78 weeks of treatment were *** Ishak fibrosis score(F)was used and fibrosis regression required a decrease in F of≥1 after ***:A total of 780 patients were enrolled,and 394 with a second liver biopsy after treatment were included in the per-protocol population,132.in ETV group and 2.2.in ETV+ALHX *** 78 weeks of treatment,the fibrosis regression rate in the ETV+ALHX group was significantly higher than that of the ETV group at baseline F≥3 patients:12./2.1(58.8%)vs.45/98(45.9%),p=*** percentage of patients with a decreased liver stiffness measurement(LSM)was higher in the ETV+ALHX group:156/2.1(73.9%)vs.62.98(63.%),p=*** regression analysis showed that ETV combined with ALHX was associated with fibrosis regression[odds ratio(OR)=1.94,p=0.018],and a family history of hepatocellular carcinoma was on the contrary.(OR=0.41,p=0.031).Conclusions:ETV combined with ALHX increased liver fibrosis regression in CHB patients.

关键词： Chronic hepatitis B Liver fibrosis Regression Randomized controlled trial

A new prognostic histopathologic classification of nasopharyngeal carcinoma

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Chinese Journal of Cancer 2016年第6期35卷 30-45页

作者： Hai-Yun Wang Yih-Leong Chang Ka-Fai To Jacqueline S.G.Hwang Hai-Qiang Mai Yan-Fen Feng Ellen T.Chang Chen-Ping Wang Michael Koon ming Kam Shie-Lee Cheah ming Lee Li Gao Hui-{2. Zhang Jie-Hua He Hao jiang Pei-Qing Ma Xiao-Dong Zhu Liang Zeng chun-Yan Chen Gang Chen Ma-Yan Huang Sha fu Qiong Shao An-jia Han Hai-Gang Li chun-Kui Shao Pei-Yu Huang Chao-Nan Qian Tai-Xiang Lu Jin-Tian Li Weimin Ye Ingemar Ernberg Ho Keung Ng Joseph T.S.Wee Yi-Xin Zeng Hans-Olov Adami Anthony T.C.Chan jian-Yong Shao State Key Laboratory of Oncology in South china Collaborative Innovation Center for Cancer Medicine Sun Yat-sen University Cancer Center Department of Molecular Diagnostics Sun Yat-sen University Cancer Center Department of Pathology National Taiwan University HospitalNational Taiwan University College of Medicine Department of Anatomical and Cellular Pathology Hong Kong Cancer Institute and Sir YK Pao Centre for CancerFaculty of MedicineThe Chinese University of Hong Kong Department of Pathology Singapore General Hospital Department of Nasopharyngeal Carcinoma Sun Yat-sen University Cancer Center Department of Pathology Sun Yat-sen University Cancer Center Division of Epidemiology Department of Health Research and PolicyStanford University School of Medicine Health sciences Practice ExponentInc. Department of Otolaryngology National Taiwan University HospitalNational Taiwan University College of Medicine Department of Clinical Oncology Hong Kong Cancer Institute and Sir YK Pao Centre for CancerFaculty of MedicineThe Chinese University of Hong Kong Division of Radiation Oncology National Cancer CenterSingapore Department of Radiation Oncology Cancer Institute and HospitalChinese Academy of Medical Sciences Department of Radiation Oncology The Affiliated Hospital of Bengbu Medical College Department of Pathology Cancer Institute and HospitalChinese Academy of Medical Sciences Department of Radiation Oncology Guangxi Medical University Department of Pathology Hunan Provincial Cancer Hospital Department of Radiation Oncology Sun Yat-sen University Cancer Center Department of Pathology Fujian Provincial Cancer Hospital Department of Pathology The First Affiliated HospitalSun Yat-sen University Department of Pathology Sun Yat-sen Memorial HospitalSun Yat-sen University Department of Pathology The Third Affiliated HospitalSun Yat-sen University Department of Experiment Research Sun Yat-sen University Cancer Center Department of Medical Epidemiology and Biostatistics Karolinska Institutet Departments of Mi

Background:The current World Health Organization(WHO) classification of nasopharyngeal carcinoma(NPC) con?veys little prognostic *** study aimed to propose an NPC histopathologic classification that can poten?tially be used to predict prognosis and treatment ***:We initially developed a histopathologic classification based on the morphologic traits and cell differentia?tion of tumors of 2.16 NPC patients who were identified at Sun Yat?sen university Cancer Center(SYSUCC)(training cohort).Then,the proposed classification was applied to 1702.patients(retrospective validation cohort) from hospitals outside SYSUCC and 1613 patients(prospective validation cohort) from *** efficacy of radiochemotherapy and radiotherapy modalities was compared between the proposed *** used Cox proportional hazards models to estimate hazard ratios(HRs) with 95% confidence intervals(CI) for overall survival(OS).Results:The 5?year OS rates for all NPC patients who were diagnosed with epithelial carcinoma(EC;3708 patients),mixed sarcomatoid?epithelial carcinoma(MSEC;12.7 patients),sarcomatoid carcinoma(SC;82. patients),and squamous cell carcinoma(SCC;2.3 patients) were 79.4%,70.5%,59.6%,and 42.6%,respectively(P 2.–1.62.,SC(HR = 2.00,95% CI = 1.76–2.2.),or SCC(HR = 4.2.,95% CI = 3.34–5.38).Radiochemotherapy significantly improved survival compared with radiotherapy alone for patients with EC(HR 49–0.75),and possibly for those with SCC(HR = 0.67,95% CI = 0.56–0.80),MSEC(HR = 0.58,95% CI = 0..74–1.2.).= 0.63;95% CI = 0.40–0.98),but not for patients with SC(HR = 0.97,95% CI = 0Conclusions:The proposed classification offers more {2. for the prediction of NPC prognosis compared with the WHO classification and might be a valuable tool to guide treatment decisions for subtypes that are associ?ated with a poor prognosis.

关键词： Nasopharyngeal carcinoma Pathologic classification Prognosis