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354篇 您的检索式:作者名="Xiang Ling"
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1De novo combined lamivudine and adefovir dipivoxil therapy vs entecavir monotherapy for hepatitis B virus-related decompensated cirrhosis显示文摘AIM:To compare efficacy of combined lamivudine(LAM)and adefovir dipivoxil(ADV)therapy with that of entecavir(ETV)monotherapy for hepatitis B virus(HBV)-related decompensated liver cirrhosis.METHODS:A total of 120 na ve patients with HBVrelated decompensated cirrhosis participated in this study.Sixty patients were treated with combined LAM and ADV therapy(LAM+ADV group),while the other60 were treated with ETV monotherapy(ETV group)for two years.Tests for liver and kidney function,alpha-fetoprotein,HBV serum markers,HBV DNA load,prothrombin time(PT),and ultrasonography or computed tomography scan of the liver were performed every1 to 3 mo.Repeated measure ANOVA and theχ2test were performed to compare the efficacy,side effects,and the cumulative survival rates at 48 and 96 wk.RESULTS:Forty-five patients in each group were observed for 96 wk.No significant differences in HBV DNA negative rates and alanine aminotransferase(ALT)normalization rates at weeks 48(χ2=2.12 and 2.88)and96(χ2=3.21 and 3.24)between the two groups were observed.Hepatitis B e antigen seroconversion rate in the LAM+ADV group at week 96 was significantly higher in the ETV group(43.5%vs 36.4%,χ2=4.09,P<0.05).Viral breakthrough occurred in 2 cases(4.4%)by week 48 and in 3 cases(6.7%)by week 96 in the LAM+ADV group,and no viral mutation was detected.In the ETV group,viral breakthrough occurred in 1 case(2.2%)at the end of week 96.An increase in albumin(F=18.9 and 17.3),decrease in total bilirubin and in ALT(F=16.5,17.1 and 23.7,24.8),reduced PT(F=22.7 and 24.5),and improved Child-Turcotte-Pugh and the model for end-stage liver disease scores(F=18.5,17.8,and 24.2,23.8)were observed in both groups.The cumulative rates of mortality and liver transplantation were 16.7%(10/60)and 18.3%(11/60)in the LAM+ADV and ETV groups,respectively.CONCLUSION:Both LAM+ADV combination therapy and ETV monotherapy can effectively inhibit HBV replication,improve liver function,and decrease mortality.Jiang-Shan Lian Lin-Yan Zeng Jian-Yang Chen Hong-Yu Jia Yi-Min Zhang Dai-Rong Xiang Liang Yu Jian-Hua Hu Ying-Feng Lu Ling Zheng Lan-Juan Li Yi-Da Yang 2013World Journal of Gastroenterology2013,19,37:36
2PVT v2:Improved baselines with Pyramid Vision Transformer显示文摘Transformers have recently lead to encouraging progress in computer vision.In this work,we present new baselines by improving the original Pyramid Vision Transformer(PVT v1)by adding three designs:(i)a linear complexity attention layer,(ii)an overlapping patch embedding,and(iii)a convolutional feed-forward network.With these modifications,PVT v2 reduces the computational complexity of PVT v1 to linearity and provides significant improvements on fundamental vision tasks such as classification,detection,and segmentation.In particular,PVT v2 achieves comparable or better performance than recent work such as the Swin transformer.We hope this work will facilitate state-ofthe-art transformer research in computer vision.Code is available at http://gffzz188fe103f8f1460asbpq0xk0cv6uq69xo.ffgz.tsg.suse.edu.cn/whai362/PVT.Wenhai Wang Enze Xie Xiang Li Deng-Ping Fan Kaitao Song Ding Liang Tong Lu Ping Luo Ling Shao 2022Computational Visual Media2022,8,3:30
3Pyroptosis: mechanisms and diseases显示文摘Currently,pyroptosis has received more and more attention because of its association with innate immunity and disease.The research scope of pyroptosis has expanded with the discovery of the gasdermin family.A great deal of evidence shows that pyroptosis can affect the development of tumors.The relationship between pyroptosis and tumors is diverse in different tissues and genetic backgrounds.In this review,we provide basic knowledge of pyroptosis,explain the relationship between pyroptosis and tumors,and focus on the significance of pyroptosis in tumor treatment.In addition,we further summarize the possibility of pyroptosis as a potential tumor treatment strategy and describe the side effects of radiotherapy and chemotherapy caused by pyroptosis.In brief,pyroptosis is a double-edged sword for tumors.The rational use of this dual effect will help us further explore the formation and development of tumors,and provide ideas for patients to develop new drugs based on pyroptosis.Pian Yu Xu Zhang Nian Liu Ling Tang Cong Peng Xiang Chen 2021Signal Transduction and Targeted Therapy2021,6,4:26
4A selective tropism of transfused oval cells for liver显示文摘AIM: To explore the biological behaviors of hepatic oval cells after transfused into the circulation of experimental animals.METHODS: Oval cells from male SD rat were transfused into the circulation of a female rat which were treated by a 2-AAF/CCl4 program, through caudal vein. Sex-determining gene sry which located on Y chromosome was examined by PCR and in situ hybridization technique in liver, kidney and spleen of the experimental animals, respectively.RESULTS: The results of the cell-transplant experiment showed that the srygene was detectable only in the liver but not in spleen and kidney of the experimental rats, and no signals could be detected in the control animals. It can be also morphologically proved that some exogenous cells had migrated into the parenchyma of the liver and settled there.CONCLUSION: The result means that there are exogenous cells located in the liver of the experimental animal and the localization is specific to the liver. This indicates that some 'signal molecules' must exist in the circulation of the rats treated by 2-AAF/CCl4. These 'signal molecules' might play an important role in specific localization and differentiation of transfused oval cells.Jian-Zhi Chen Hai Hong Jin Xiang Ling Xue Guo-Qiang Zhao Department of Pathology, Medical School of Sun Yat-Sen University, Guangzhou 510080, Guangdong Province, China 2003World Journal of Gastroenterology2003,9,3:25
5Seedling growth and metal accumulation of selected woody species in copper and lead/zinc mine tailings显示文摘A greenhouse pot experiment was conducted to evaluate the potential of selected woody plants for revegetation in copper (Cu) and lead/zinc (Pb/Zn) mine tailing areas.Five woody species (Amorpha fruticosa Linn,Vitex trifolia Linn.var.simplicifolia Cham,Glochidion puberum (Linn.) Hutch,Broussonetia papyrifera,and Styrax tonkinensis) and one herbaceous species (Sesbania cannabina Pers) were planted in Cu and Pb/Zn tailings to assess their growth,root morphology,nutrition uptake,metal accumulation,and translocation in plants.Amorpha fruticosa maintained normal growth,while the other species demonstrated stress related growth and root development.Sesbania cannabina showed the highest biomass among the plants,although it decreased by 30% in Cu tailings and 40% in Pb/Zn tailings.Calculated tolerance index (TI) values suggested that A.fruticosa,an N-fixing shrub,was the most tolerant species to both tailings (TI values 0.92-1.01),while S.cannabina had a moderate TI of 0.65-0.81 and B.papyrifera was the most sensitive species,especially to Pb/Zn tailings (TI values 0.15-0.19).Despite the high concentrations of heavy metals in the mine tailings and plants roots,only a small transfer of these elements to the aboveground parts of the woody plants was evident from the low translocation factor (TF) values.Among the woody plants,V.trifolia var.simplicifolia had the highest TF values for Zn (1.32),Cu (0.78),and Pb/Zn (0.78).The results suggested that A.fruticosa and S.cannabina,which have the highest tolerance and biomass production,respectively,demonstrated the potential for tailings revegetation in southern China.Xiang Shi Xiaolei Zhang Guangcai Chen Yitai Chen Ling Wang Xiaoquan Shan 2011Journal of Environmental Sciences2011,23,2:18
6Additive Benefits of Twice Forest Bathing Trips in Elderly Patients with Chronic Heart Failure显示文摘长期的心失败(CHF ) ,源于各种各样的心血管的疾病(CVD ) 的后果的临床的症候群,逐渐地正在成为病态和死亡的一个全球原因。我们更早证明了洗旅行的一个 4 天的森林能在病人上向附属治疗学的影响提供 CHF。为了进一步调查影响和森林洗澡的最佳的频率的持续时间,与 CHF 在病人摔倒,我们招募了经历了在 4 个星期以后再洗旅行的第一个森林并且也就是,随机把他们分成了二个组的那些对象城市的控制组(城市)和洗组(森林)的森林。在洗旅行的第二个 4 天的森林以后,我们象氧化应力一样在大脑 natriuretic 肽层次,心失败的 biomarker,和稀释煽动性的回答观察了稳定的衰落。因此,这探索研究表明了添加剂好处两次,森林洗澡与 CHF 在老病人摔倒,它能进一步为在 CVD 分析如此的干预的效果铺平道路。MAO Gen Xiang CAO Yong Bao YANG Yan CHEN Zhuo Mei DONG Jian Hua CHEN Sha Sha WU Qing LYU Xiao Ling JIA Bing Bing YAN Jing WANG Guo Fu 2018Biomedical and Environmental Sciences2018,31,2:18
7Clinical evaluation of valsartan and metoprolol tartrate in treatment of diabetic nephropathy with positive β1-adrenergic and anti-angiotensin Ⅱ type 1 receptor antibody显示文摘ZHAO Lin-shuang BAI Wei-wei XIANG Guang-da YUE Ling SUN Hui-ling 2012Chinese Medical Journal2012,,19:15
8Health Effect of Forest Bathing Trip on Elderly Patients with Chronic Obstructive Pulmonary Disease显示文摘Forest bathing trip is a short,leisurely visit to forest.In this study we determined the health effects of forest bathing trip on elderly patients with chronic obstructive pulmonary disease(COPD).The patients were randomly divided into two groups.One group was sent to forest,and the other was sent to an urban area as control.JIA Bing Bing YANG Zhou Xin MAO Gen Xiang LYU Yuan Dong WEN Xiao Lin XU Wei Hong LYU XIAO Ling CAO Yong Bao WANG Guo Fu 2016Biomedical and Environmental Sciences2016,29,3:15
9Breviscapine reduces neuronal injury caused by traumatic brain injury insult:partly associated with suppression of interleukin-6 expression显示文摘Breviscapine,extracted from the herb Erigeron breviscapus,is widely used for the treatment of cardiovascular diseases,cerebral infarct,and stroke,but its mechanism of action remains unclear.This study established a rat model of traumatic brain injury induced by controlled cortical impact,and injected 75 μg breviscapine via the right lateral ventricle.We found that breviscapine significantly improved neurobehavioral dysfunction at 6 and 9 days after injection.Meanwhile,interleukin-6 expression was markedly down-regulated following breviscapine treatment.Our results suggest that breviscapine is effective in promoting neurological behavior after traumatic brain injury and the underlying molecular mechanism may be associated with the suppression of interleukin-6.Ling Jiang Yue Hu Xiang He Qiang Lv Ting-hua Wang Qing-jie Xia 2017Neural Regeneration Research2017,12,1:14
10A new triterpene glycoside from sea cucumber Holothuria leucospilota显示文摘A new triterpene glycoside, leucospilotaside A, along with a known saponin, isolated from sea cucumber Holothuria leucospilota, and its structure was elucidated as 3β-O-[4-O-sodiumsulfate-β-D-quinovopyranosyl-(1→2)-β-D-xylopyranosyl]-holosta-22-ketone-9-en-17α,25α-diol (1) by extensive spectroscopic analysis and chemical methods. Leucospilotaside A (1) has a ketone carbonyl group (22) in the aglycon side chain.Hua Han Yang Hua Yi Ling Li Xiao Hua Wang Bao Shu Liu Peng Sun Min Xiang Pan 2007Chinese Chemical Letters2007,18,2:13
11Spatial and temporal variation of fish assemblages in a subtropical small stream of the Huangshan Mountain显示文摘Spatial and temporal variation of fish assemblages were investigated seasonally from May 2007 to February 2008across 11 study sites in a subtropical small stream, the Puxi Stream, of the Huangshan Mountain. Along the longitudinal gradientfrom headwater to downstream, fish species richness and abundance increased gradually, but then decreased significantly at thelower reaches. The highest species richness and abundance were observed in August and the lowest in February. Based on analysisof similarities (ANOSIM), fish assemblages were significantly different in spatial variation but not in temporal variation. Althoughdifferences were observed both among sites and among stream orders, the lower R value in order-variation suggestedstream order was not the optimal factor explaining the spatial variation of fish assemblages. In addition, dam construction did notsignificantly alter fish assemblages in the sites adjacent to and immediately downstream to dams. Using cluster analysis andnon-metric Multi Dimensional Scaling analysis (NMS), assemblages were separated into three groups at a Bray-Curtis similarityvalue of 42%: the upper, middle and lower groups. Following analysis of similarity percentages of species contributions (SIMPER),shifts in occurrence or abundance of S. curriculus, Z. platypus, R. bitterling and A.fasciatus contributed most to the differencesamongst the three groups. Standard Deviation Redundancy Analysis (RDA) suggested that habitat structure (such as elevation,substrate, and flow velocity) contributed to the spatial and temporal pattern of fish assemblages in the Puxi Stream. In conclusion,the fish assemblages in Puxi Stream presented significant spatial but not temporal variation. Human disturbance has perhapsinduced the decrease in species diversity in the lower reaches. However, no significant change was observed for fish assemblagesin sites far from and immediately downstream from low-headYunzhi YAN Shan HE Ling CHU Xiuying XIANG Yanju JIA Juan TAO 2010Current Zoology2010,56,6:12
12Clinical practice guidelines for breast cancer implantable intravenous infusion ports:Chinese Society of Breast Surgery practice guidelines 2021显示文摘To standardize the clinical application of implantable intravenous(IV)ports,the Chinese Society of Breast Surgery(CSBrS)of the Chinese Medical Association has identified the key clinical issues through literature research and expert discussion and evaluated the relevant evidence with reference to the grading of recommendations assessment,development,and evaluation.The CSBrS formulated the clinical practice guidelines to provide a reference for physicians specializing in breast cancer and other fields.Li Ma Zhi-Cheng Ge Ling Xin Ying-Xin Wang Yan-Shou Zhang Tian-Tian Tang Guo-Xuan Gao Qian Liu Xuan Zhao Yun-Jiang Liu Xiang Qu 2021Chinese Medical Journal2021,,16:11
13Mathematic principle of active jamming against wideband LFM radar显示文摘The inherent mathematic principle of active jamming against the wideband linear frequency modulated(LFM) radar is investigated. According to different generation strategies, the active jamming methods are reclassified into three groups, i.e.,non-coherent jamming(NCJ), convolution jamming(CJ) and multiplying jamming(MJ). Based on the classification, the mathematic principles of different active jamming groups are put forward, which describe the relationships between the modulated signals and the jamming results. The advantages and disadvantages of different groups are further analyzed, which provides a new perspective for the study of jamming/anti-jamming methods and a potential for engineers to integrate similar jamming methods into one jammer platform. The analyses and simulation results of some typical active jamming methods prove the validity of the proposed mathematics principle.Shixian Gong Xizhang Wei Xiang Li Yongshun Ling 2015Journal of Systems Engineering and Electronics2015,26,1:10
14Detection of Pseudorabies Virus Antibodies in Human Encephalitis Cases显示文摘Pseudorabies virus(PRV),a veterinary pathogen that infects domestic animals as well as wild animals such as wild boar and feral swine,was recently reported to infect human and led to endophthalmitis and encephalitis.A retrospective seroepidemiologic survey was conducted using 1,335 serum samples collected from patients with encephalitis and ELISA positive rates were 12.16%,14.25%,and 6.52%in 2012,2013,and 2017,respectively.LI Xiang Dong FU Shi Hong CHEN Ling Yan LI Fan DENG Jun Hua LU Xuan Cheng WANG Huan Yu TIAN Ke Gong 2020Biomedical and Environmental Sciences2020,33,6:9
15Allele-aware chromosome-level genome assembly of Artemisia annua reveals the correlation between ADS expansion and artemisinin yield显示文摘Artemisia annua is the major natural source of artemisinin,an anti-malarial medicine commonly used worldwide.Here,we present chromosome-level haploid maps for two A.annua strains with different artemisinin contents to explore the relationships between genomic organization and artemisinin production.High-fidelity sequencing,optical mapping,and chromatin conformation capture sequencing were used to assemble the heterogeneous and repetitive genome and resolve the haplotypes of A.annua.Approximately 5o,ooo genes were annotated for each haplotype genome,and a triplication event that occurred approximately 58.12million years ago was examined for the first time in this species.A total of 3,903,467-5,193,414 variants(SNPs,indels,and structural variants)were identified in the 1.5-Gb genome during pairwise comparison between haplotypes,consistent with the high heterozygosity of this species.Genomic analyses revealed a correlation between artemisinin concents and the copy number of amorpha-4,11-dienes ynthasegenes.This correlation was further confirmed by resequencing of 36A.annua samples with varied artemisinin contents.Circular consensus sequencing of transcripts facilitated the detection of paralog expression.Collectively,our study provides chromosome-level allele-aware genome assemblies for two A.annua strains and new insights into the biosynthesis of artemisinin and its regulation,which will contribute to conquering malaria worldwide.Baosheng Liao Xiaofeng Shen Li Xiang Shuai Guo Shiyu Chen Ying Meng Yu Liang Dandan Ding Junqi Bai Dong Zhang Tomasz Czechowski Yi Li Hui Yao Tingyu Mai Caroline Howard Chao Sun Haitao Liu Jiushi Liu Jin Pei Jihai Gao Jigang Wang Xiaohui Qiu Zhihai Huang Hongyi Li Ling Yuan Jianhe Wei lan Graham Jiang Xu Boli Zhang Shilin Chen 2022Molecular Plant2022,15,8:9
16The Effect of PCDH15 Gene Variations on the Risk of Noise-induced Hearing Loss in a Chinese Population显示文摘导致噪音的听觉损失(NIHL ) 是在环境、基因的因素之间的相互作用引起的复杂疾病。这研究调查了在 protocadherin 的基因可变性是否联系了 15 (PCDH15 ) 在一张中国人口位于增加的危险性下面到 NIHL 的发展。结果证明与 rs11004085 的 TT 遗传型相比, CT/CC 遗传型与 NIHL 的增加的风险被联系[调整机会比率(或)= 2.64;95% 信心间隔(CI ) :1.14-6.11, P = 0.024 ] 。另外,在 rs11004085 和 rs978842 之间的重要相互作用基因变化和噪音暴露在高级暴露组被观察(P < 0.05 ) 。而且,当与噪音暴露的高水平结合了时,风险 haplotype TAGCC 被观察(P < 0.05 ) 。因此,我们的学习证实在 PCDH15 的基因变化在人修改危险性到 NIHL 开发。XU Xiang Rong WANG Jing Jing YANG Qiu Yue JIAO Jie HE Li Hua YU Shan Fa GU Gui Zhen CHEN Guo Shun ZHOU Wen Hui WU Hui LI Yan Hong ZHANG Huan Ling ZHANG Zeng Rui JIN Xian Ning 2017Biomedical and Environmental Sciences2017,30,2:9
17Development and validation of an endoscopic images-based deep learning model for detection with nasopharyngeal malignancies显示文摘Background:Due to the occult anatomic location of the nasopharynx and frequent presence of adenoid hyperpla-sia,the positive rate for malignancy identification during biopsy is low,thus leading to delayed or missed diagnosis for nasopharyngeal malignancies upon initial attempt.Here,we aimed to develop an artificial intelligence tool to detect nasopharyngeal malignancies under endoscopic examination based on deep learning.Methods:An endoscopic images-based nasopharyngeal malignancy detection model(eNPM-DM)consisting of a fully convolutional network based on the inception architecture was developed and fine-tuned using separate training and validation sets for both classification and segmentation.Briefly,a total of 28,966 qualified images were collected.Among these images,27,536 biopsy-proven images from 7951 individuals obtained from January 1st,2008,to December 31st,2016,were split into the training,validation and test sets at a ratio of 7:1:2 using simple randomiza-tion.Additionally,1430 images obtained from January 1st,2017,to March 31st,2017,were used as a prospective test set to compare the performance of the established model against oncologist evaluation.The dice similarity coef-ficient(DSC)was used to evaluate the efficiency of eNPM-DM in automatic segmentation of malignant area from the background of nasopharyngeal endoscopic images,by comparing automatic segmentation with manual segmenta-tion performed by the experts.Results:All images were histopathologically confirmed,and included 5713(19.7%)normal control,19,107(66.0%)nasopharyngeal carcinoma(NPC),335(1.2%)NPC and 3811(13.2%)benign diseases.The eNPM-DM attained an overall accuracy of 88.7%(95%confidence interval(CI)87.8%-89.5%)in detecting malignancies in the test set.In the prospective comparison phase,eNPM-DM outperformed the experts:the overall accuracy was 88.0%(95%CI 86.1%-89.6%)vs.80.5%(95%CI 77.0%-84.0%).The eNPM-DM required less time(40 s vs.110.0±5.8 min)and exhibited encouraging performance in automatic segmentation of nasopharyngeal malignant area from the background,with an average DSC of 0.78±0.24 and 0.75±0.26 in the test and prospective test sets,respectively.Conclusions:The eNPM-DM outperformed oncologist evaluation in diagnostic classification of nasopharyngeal mass into benign versus malignant,and realized automatic segmentation of malignant area from the background of nasopharyngeal endoscopic images.Chaofeng Li Bingzhong Jing Liangru Ke Bin Li Weixiong Xia Caisheng He Chaonan Qian Chong Zhao Haiqiang Mai Mingyuan Chen Kajia Cao Haoyuan Mo Ling Guo Qiuyan Chen Linquan Tang Wenze Qiu Yahui Yu Hu Liang Xinjun Huang Guoying Liu Wangzhong Li Lin Wang Rui Sun Xiong Zou Shanshan Guo Peiyu Huang Donghua Luo Fang Qiu Yishan Wu Yijun Hua Kuiyuan Liu Shuhui Lv Jingjing Miao Yanqun Xiang Ying Sun Xiang Guo Xing Lv 2018Cancer Communications2018,38,1:9
18Neurons-system-like structured SnS_(2)/CNTs composite for high-performance sodium-ion battery anode显示文摘Sodium-ion batteries(SIBs)have attracted significant attention with respect to renewable energy power generation systems because of the abundant reserves of sodium on earth.However,anode materials are presently limited by low energy density,poor rate performance and inferior cycling stability.In recent years,tin disulfide(SnS_(2))with a particular layered structure has been considered as a promising anode material for SIBs due to its high theoretical capacity and low cost.Herein,a nervoussystem-like structured SnS_(2)/CNTs composite was successfully synthesized via a hydrothermal method.The SnS_(2)sheets were strung with carbon nanotubes(CNTs)to form a hierarchical porous structure,which is effective for electrolyte diffusion and electronic transmission.The large distance of the(001)plane(0.5899 nm)of SnS_(2)favors Na+insertion-extraction dynamics.Benefitting from these structural characteristics,SnS_(2)/CNTs electrodes exhibit high specific capacity,excellent rate performance and superior cycling stability.A high charge capacity of 642 mAh·g^(-1)was released at 0.2 A·g^(-1),and then,a high reversible capacity of 427 mAh·g^(-1)was retained after 100 cycles.Even charged at 2 A·g^(-1),the SnS_(2)/CNTS electrode maintained a capacity of 282 mAh·g^(-1).The nervous-system-like structure of the SnS_(2)/CNTs composite provides a novel strategy for the development of SIBs with high electrochemical performance.Ling Zhu Xue-Xian Yang Yan-Hong Xiang Peng Kong Xian-Wen Wu 2021Rare Metals2021,40,6:9
19Scaling up the DBSCAN Algorithm for Clustering Large Spatial Databases Based on Sampling Technique显示文摘Clustering, in data mining, is a useful technique for discovering interesting data distributions and patterns in the underlying data, and has many application fields, such as statistical data analysis, pattern recognition, image processing, and etc. We combine sampling technique with DBSCAN algorithm to cluster large spatial databases, and two sampling based DBSCAN (SDBSCAN) algorithms are developed. One algorithm introduces sampling technique inside DBSCAN, and the other uses sampling procedure outside DBSCAN. Experimental results demonstrate that our algorithms are effective and efficient in clustering large scale spatial databases.Guan Ji hong 1, Zhou Shui geng 2, Bian Fu ling 3, He Yan xiang 1 1. School of Computer, Wuhan University, Wuhan 430072, China 2.State Key Laboratory of Software Engineering, Wuhan University, Wuhan 430072, China 3.College of Remote Sensin 2001Wuhan University Journal of Natural Sciences2001,6,Z1:9
20Multicenter study of the clinicopathological features and recurrence risk prediction model of early-stage breast cancer with low-positive human epidermal growth factor receptor 2 expression in China (Chinese Society of Breast Surgery 021)显示文摘Background:Breast cancer with low-positive human epidermal growth factor receptor 2(HER2)expression has triggered further refinement of evaluation criteria for HER2 expression.We studied the clinicopathological features of early-stage breast cancer with low-positive HER2 expression in China and analyzed prognostic factors.Methods:Clinical and pathological data and prognostic information of patients with early-stage breast cancer with low-positive HER2 expression treated by the member units of the Chinese Society of Breast Surgery and Chinese Society of Surgery of Chinese Medical Association,from January 2015 to December 2016 were collected.The prognostic factors of these patients were analyzed.Results:Twenty-nine hospitals provided valid cases.From 2015 to 2016,a total of 25,096 cases of early-stage breast cancer were treated,7642(30.5%)of which had low-positive HER2 expression and were included in the study.After ineligible cases were excluded,6486 patients were included in the study.The median follow-up time was 57 months(4-76 months).The disease-free survival rate was 92.1%at 5 years,and the overall survival rate was 97.4%at 5 years.At the follow-up,506(7.8%)cases of metastasis and 167(2.6%)deaths were noted.Multivariate Cox regression analysis showed that tumor stage,lymphvascular invasion,and the Ki67 index were related to recurrence and metastasis(P<0.05).The recurrence risk prediction model was established using a machine learning model and showed that the area under the receiving operator characteristic curve was 0.815(95%confidence interval:0.750-0.880).Conclusions:Early-stage breast cancer patients with low-positive HER2 expression account for 30.5%of all patients.Tumor stage,lymphvascular invasion,and the Ki67 index are factors affecting prognosis.The recurrence prediction model for breast cancer with low-positive HER2 expression based on a machine learning model had a good clinical reference value for predicting the recurrence risk at 5 years.Trial registration:ChiCTR.org.cn,ChiCTR2100046766.Ling Xin Qian Wu Chongming Zhan Hongyan Qin Hongyu Xiang Ling Xu Jingming Ye Xuening Duan Yinhua Liu Chinese Society of Breast Surgery(CSBrS) Chinese Society of Surgery of Chinese Medical Association 2022Chinese Medical Journal2022,,6:9
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