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| 1 | Individualized prediction of perineural invasion in colorectal cancer: development and validation of a radiomics prediction model显示文摘Objective: To develop and validate a radiomics prediction model for individualized prediction of perineural invasion(PNI) in colorectal cancer(CRC).Methods: After computed tomography(CT) radiomics features extraction, a radiomics signature was constructed in derivation cohort(346 CRC patients). A prediction model was developed to integrate the radiomics signature and clinical candidate predictors [age, sex, tumor location, and carcinoembryonic antigen(CEA) level]. Apparent prediction performance was assessed. After internal validation, independent temporal validation(separate from the cohort used to build the model) was then conducted in 217 CRC patients. The final model was converted to an easy-to-use nomogram.Results: The developed radiomics nomogram that integrated the radiomics signature and CEA level showed good calibration and discrimination performance [Harrell's concordance index(c-index): 0.817; 95% confidence interval(95% CI): 0.811–0.823]. Application of the nomogram in validation cohort gave a comparable calibration and discrimination(c-index: 0.803; 95% CI: 0.794–0.812).Conclusions: Integrating the radiomics signature and CEA level into a radiomics prediction model enables easy and effective risk assessment of PNI in CRC. This stratification of patients according to their PNI status may provide a basis for individualized auxiliary treatment. | Yanqi Huang Lan He Di Dong Caiyun Yang Cuishan Liang Xin Chen Zelan Ma Xiaomei Huang Su Yao Changhong Liang Jie Tian Zaiyi Liu | 2018 | Chinese Journal of Cancer Research2018,30,1: | 23 |
| 2 | Effect of wheat bran insoluble dietary fiber with different particle size on the texture properties, protein secondary structure, and microstructure of noodles显示文摘This study was conducted to explore how the insoluble dietary fiber(IDF)of wheat bran with different particle size affects the texture properties,water distribution,protein secondary structure and microstructure of noodles.The results suggested that IDF addition increased the cooking loss and decreased the sensory evaluation because of the damage on dough structure,while as the IDF particle size decreased,the sensory score increased from 78.8 to 82.3 and cooking loss decreased from 8.65%to 7.65%,which could be attributed to that small particle-sized IDF limited the damage on protein network structure,decreased the T22 and t-structure,and increased the β1-structure.Moreover,IDF particle size had a significant correlation with protein secondary structures,texture properties and evaluation score of noodles.In conclusion,adding appropriate particle sizewould be an effectiveway of enhancing the nutritional and textural properties of noodles. | Jian Zhang Mengqin Li Chaoran Li Yanqi Liu | 2019 | Grain & Oil Science and Technology2019,2,4: | 20 |
| 3 | Sintilimab versus docetaxel as second-line treatment in advanced or metastatic squamous non-small-cell lung cancer:an open-label,randomized controlled phase 3 trial(ORIENT-3)显示文摘Background:Treatment options for Chinese patients with locally advanced or metastatic squamous-cell non-small-cell lung cancer(sqNSCLC)after failure of first-line chemotherapy are limited.This study(ORIENT-3)aimed to evaluate the efficacy and safety of sintilimab versus docetaxel as second-line treatment in patients with locally advanced or metastatic sqNSCLC.Methods:ORIENT-3 was an open-label,multicenter,randomized controlled phase 3 trial that recruited patients with stage IIIB/IIIC/IV sqNSCLC after failure with first-line platinum-based chemotherapy.Patients were randomized in a 1:1 ratio to receive either 200 mg of sintilimab or 75 mg/m^(2) of docetaxel intravenously every 3 weeks,stratified by the Eastern Cooperative Oncology Group performance status.The primary endpoint was overall survival(OS)in the full analysis set(FAS).Secondary endpoints included progression-free survival(PFS),objective response rate(ORR),disease control rate(DCR),duration of response(DoR)and safety.Results:Between August 25,2017,and November 7,2018,290 patients were randomized.For FAS,10 patients fromthe docetaxel armwere excluded.Themedian OS was 11.79(n=145;95%confidence interval[CI],10.28-15.57)months with sintilimab versus 8.25(n=135;95%CI,6.47-9.82)months with docetaxel(hazard ratio[HR]:0.74;95%CI,0.56-0.96;P=0.025).Sintilimab treatment significantly prolonged PFS(median 4.30 vs.2.79 months;HR:0.52;95%CI,0.39-0.68;P<0.001)and showed higher ORR(25.50%vs.2.20%,P<0.001)and DCR(65.50%vs.37.80%,P<0.001)than the docetaxel arm.The median DoRwas 12.45(95%CI,4.86-25.33)months in the sintilimab arm and 4.14(95%CI,1.41-7.23)months in the docetaxel arm(P=0.045).Treatment-related adverse events of grade≥3were reported in 26(18.1%)patients in the sintilimab arm and 47(36.2%)patients in the docetaxel arm.Exploratory biomarker analysis showed potential predictive values of expression levels of two transcription factors,including OVOL2(HR:0.35;P<0.001)and CTCF(HR:3.50;P<0.001),for sintilimab treatment.Conclusions:Compared with docetaxel,sintilimab significantly improved the OS,PFS,and ORR of Chinese patients with previously treated locally advanced or metastatic sqNSCLC. | Yuankai Shi Lin Wu Xinmin Yu Puyuan Xing Yan Wang Jianying Zhou Airong Wang Jianhua Shi Yi Hu Ziping Wang Guangyu An Yong Fang Sanyuan Sun Caicun Zhou Changli Wang Feng Ye Xingya Li Junye Wang Mengzhao Wang Yunpeng Liu Yanqiu Zhao Ying Yuan Jifeng Feng Zhendong Chen Jindong Shi Tao Sun Gang Wu Yongqian Shu Qisen Guo Yi Zhang Yong Song Shucai Zhang Yuan Chen Wei Li Hongrui Niu Wenwei Hu Lijun Wang Jianan Huang Yang Zhang Ying Cheng Zhengdong Wu Bo Peng Jiya Sun Christoph Mancao Yanqi Wang Luyao Sun | 2022 | Cancer Communications2022,42,12: | 8 |
| 4 | Radiomics-based predictive risk score: A scoring system for preoperatively predicting risk of lymph node metastasis in patients with resectable non-small cell lung cancer显示文摘Objective: To develop and validate a radiomics-based predictive risk score(RPRS) for preoperative prediction of lymph node(LN) metastasis in patients with resectable non-small cell lung cancer(NSCLC).Methods: We retrospectively analyzed 717 who underwent surgical resection for primary NSCLC with systematic mediastinal lymphadenectomy from October 2007 to July 2016. By using the method of radiomics analysis, 591 computed tomography(CT)-based radiomics features were extracted, and the radiomics-based classifier was constructed. Then, using multivariable logistic regression analysis, a weighted score RPRS was derived to identify LN metastasis. Apparent prediction performance of RPRS was assessed with its calibration,discrimination, and clinical usefulness.Results: The radiomics-based classifier was constructed, which consisted of 13 selected radiomics features.Multivariate models demonstrated that radiomics-based classifier, age group, tumor diameter, tumor location, and CT-based LN status were independent predictors. When we assigned the corresponding score to each variable,patients with RPRSs of 0-3, 4-5, 6, 7-8, and 9 had distinctly very low(0%-20%), low(21%-40%), intermediate(41%-60%), high(61%-80%), and very high(81%-100%) risks of LN involvement, respectively. The developed RPRS showed good discrimination and satisfactory calibration (C-index: 0.785, 95% confidence interval(95% CI):0.780-0.790)Additionally, RPRS outperformed the clinicopathologic-based characteristics model with net reclassification index(NRI) of 0.711(95% CI: 0.555-0.867).Conclusions: The novel clinical scoring system developed as RPRS can serve as an easy-to-use tool to facilitate the preoperatively individualized prediction of LN metastasis in patients with resectable NSCLC. This stratification of patients according to their LN status may provide a basis for individualized treatment. | Lan He Yanqi Huang Lixu Yan Junhui Zheng Changhong Liang Zaiyi Liu | 2019 | Chinese Journal of Cancer Research2019,31,4: | 7 |
| 5 | Lingguizhugan Decoction, a Chinese herbal formula, improves insulin resistance in overweight/obese subjects with non-alcoholic fatty liver disease: a translational approach显示文摘Lingguizhugan Decoction(LGZG)has been investigated in basic studies,with satisfactory effects on insulin resistance in non-alcoholic fatty liver disease(NAFLD).This translational approach aimed to explore the effect and underlying mechanism of LGZG in clinical setting.A randomized,double-blinded,placebo-controlled trial was performed.A total of 243 eligible participants with NAFLD were equally allocated to receive LGZG(two groups:standard dose and low dose)or placebo for 12 weeks on the basis of lifestyle modifications.The primary efficacy variable was homeostasis model assessment of insulin resistance(HOMA-IR).Analyses were performed in two populations in accordance with body mass index(BMI;overweight/obese,BMI 24 kg/m^(2);lean,BMI<24 kg/m^(2)).For overweight/obese participants,low-dose LGZG significantly decreased their HOMA-IR level compared with placebo(0.19(1.47)versus 0.08(1.99),P=0.038).For lean subjects,neither dose of LGZG showed a superior effect compared with placebo.Methylated DNA immunoprecipitation sequencing and real-time qPCR found that the DNA N6-methyladenine modification levels of protein phosphatase 1 regulatory subunit 3A(PPP1R3A)and autophagy related 3(ATG3)significantly increased after LGZG intervention in overweight/obese population.Low-dose LGZG effectively improved insulin resistance in overweight/obese subjects with NAFLD.The underlying mechanism may be related to the regulation of DNA N6-methyladenine modification of PPP1R3A and ATG3.Lean subjects may not be a targeted population for LGZG. | Liang Dai Jingjuan Xu Baocheng Liu Yanqi Dang Ruirui Wang Lijie Zhuang Dong Li Lulu Jiao Jianying Wang Lei Zhang Linda LDZhong Wenjun Zhou Guang Ji | 2022 | Frontiers of Medicine2022,16,5: | 7 |
| 6 | Graphene/phosphorene nano-heterojunction:facile synthesis, nonlinear optics, and ultrafast photonics applications with enhanced performance显示文摘Owing to its thickness-modulated direct energy band gap, relatively strong light–matter interaction, and unique nonlinear optical response at a long wavelength, few-layer black phosphorus, or phosphorene, becomes very attractive in ultrafast photonics applications. Herein, we synthesized a graphene/phosphorene nano-heterojunction using a liquid phase-stripping method. Tiny lattice distortions in graphene and phosphorene suggest the formation of a nano-heterojunction between graphene and phosphorene nanosheets. In addition, we systematically investigate their nonlinear optical responses at different wavelength regimes. Our experiments indicate that the combined advantages of ultrafast relaxation, broadband response in graphene, and the strong light–matter interaction in phosphorene can be combined together by nano-heterojunction. We have further fabricated two-dimensional(2D) nano-heterojunction based optical saturable absorbers and integrated them into an erbium-doped fiber laser to demonstrate the generation of a stable ultrashort pulse down to 148 fs. Our results indicate that a graphene/phosphorene nano-heterojunction can operate as a promising saturable absorber for ultrafast laser systems with ultrahigh pulse energy and ultranarrow pulse duration. We believe this work opens up a new approach to designing 2D heterointerfaces for applications in ultrafast photonics and other research.The fabrication of a 2D nano-heterojunction assembled from stacking different 2D materials, via this facile and scalable growth approach, paves the way for the formation and tuning of new 2D materials with desirable photonic properties and applications. | SHUNXIANG LIU ZHONGJUN LI YANQI GE HUIDE WANG RUI YUE XIANTAO JIANG JIANQING LI QIAO WEN HAN ZHANG | 2017 | Photonics Research2017,5,6: | 6 |
| 7 | Design and performance of dual-band high temperature superconducting filter显示文摘In this paper,a dual-band high temperature superconducting (HTS) filter with 14-pole and 3 cross couplings is presented.The equivalent model,theoretical result,coupling matrix,and the simulated result of the filter are demonstrated.The desired filter is designed and fabricated using double-sided DyBa 2 Cu 3 O 7 thin films on MgO wafer 2 inches in diameter and 0.5 mm in thickness.The filter has two passbands with frequencies 1920-1940 MHz and 1960-1980 MHz respectively,and insertion loss less than 0.2 dB.The measurement results show that the response of practical filters is in good agreement with that of simulated results and theoretical analysis,with the group delay variation being less than ±20 ns over 90% of the filter bandwidth for the two passbands. | JI LaiYun MA Jie SUN Jun WANG Lang LI YanQi LIU Bin | 2012 | Science China(Information Sciences)2012,55,4: | 5 |
| 8 | Evaluation of human epidermal growth factor receptor 2 status of breast cancer using preoperative multidetector computed tomography with deep learning and handcrafted radiomics features显示文摘Objective:To evaluate the human epidermal growth factor receptor 2(HER2)status in patients with breast cancer using multidetector computed tomography(MDCT)-based handcrafted and deep radiomics features.Methods:This retrospective study enrolled 339 female patients(primary cohort,n=177;validation cohort,n=162)with pathologically confirmed invasive breast cancer.Handcrafted and deep radiomics features were extracted from the MDCT images during the arterial phase.After the feature selection procedures,handcrafted and deep radiomics signatures and the combined model were built using multivariate logistic regression analysis.Performance was assessed by measures of discrimination,calibration,and clinical usefulness in the primary cohort and validated in the validation cohort.Results:The handcrafted radiomics signature had a discriminative ability with a C-index of 0.739[95%confidence interval(95%CI):0.661-0.818]in the primary cohort and 0.695(95%CI:0.609-0.781)in the validation cohort.The deep radiomics signature also had a discriminative ability with a C-index of 0.760(95%CI:0.690-0.831)in the primary cohort and 0.777(95%CI:0.696-0.857)in the validation cohort.The combined model,which incorporated both the handcrafted and deep radiomics signatures,showed good discriminative ability with a C-index of 0.829(95%CI:0.767-0.890)in the primary cohort and 0.809(95%CI:0.740-0.879)in the validation cohort.Conclusions:Handcrafted and deep radiomics features from MDCT images were associated with HER2 status in patients with breast cancer.Thus,these features could provide complementary aid for the radiological evaluation of HER2 status in breast cancer. | Xiaojun Yang Lei Wu Ke Zhao Weitao Ye Weixiao Liu Yingyi Wang Jiao Li Hanxiao Li Xiaomei Huang Wen Zhang Yanqi Huang Xin Chen Su Yao Zaiyi Liu Changhong Liang | 2020 | Chinese Journal of Cancer Research2020,32,2: | 4 |
| 9 | Real-time Dispatchable Region of Renewable Generation Constrained by Reactive Power and Voltage Profiles in AC Power Networks显示文摘A large amount of renewable energy generation(REG)has been integrated into power systems,challenging the operational security of power networks.In a real-time dispatch,system operators need to estimate the ability of the power network to accommodate REG with a limited reserve capacity.The real-time dispatchable region(RTDR)is defined as the largest range of a power injection that the power network can accommodate in a certain dispatch interval for a given dispatch base point.State-of-the-art research on the RTDR adopts a DC power flow model regardless of the voltage profiles and reactive power,which can overlook potentially insecure operational states of the system.To address this issue,this paper proposes an AC power flow based RTDR model simultaneously considering the reactive power and voltage profiles constraints.The nonlinear constraints in our model are approximated using a linear power flow model together with a polytope approximation technique for quadratic constraints.An adaptive constraint generation algorithm is used to calculate the RTDR.Simulation results using the IEEE 5-bus and 30-bus systems illustrate the advantages of the proposed model. | Yanqi Liu Zhigang Li Q.H.Wu Haibo Zhang | 2020 | CSEE Journal of Power and Energy Systems2020,6,3: | 3 |
| 10 | A radiomics prognostic scoring system for predicting progression-free survival in patients with stageⅣnon-small cell lung cancer treated with platinum-based chemotherapy显示文摘Objective:To develop and validate a radiomics prognostic scoring system(RPSS)for prediction of progressionfree survival(PFS)in patients with stageⅣnon-small cell lung cancer(NSCLC)treated with platinum-based chemotherapy.Methods:In this retrospective study,four independent cohorts of stageⅣNSCLC patients treated with platinum-based chemotherapy were included for model construction and validation(Discovery:n=159;Internal validation:n=156;External validation:n=81,Mutation validation:n=64).First,a total of 1,182 three-dimensional radiomics features were extracted from pre-treatment computed tomography(CT)images of each patient.Then,a radiomics signature was constructed using the least absolute shrinkage and selection operator method(LASSO)penalized Cox regression analysis.Finally,an individualized prognostic scoring system incorporating radiomics signature and clinicopathologic risk factors was proposed for PFS prediction.Results:The established radiomics signature consisting of 16 features showed good discrimination for classifying patients with high-risk and low-risk progression to chemotherapy in all cohorts(All P<0.05).On the multivariable analysis,independent factors for PFS were radiomics signature,performance status(PS),and N stage,which were all selected into construction of RPSS.The RPSS showed significant prognostic performance for predicting PFS in discovery[C-index:0.772,95%confidence interval(95%CI):0.765-0.779],internal validation(C-index:0.738,95%CI:0.730-0.746),external validation(C-index:0.750,95%CI:0.734-0.765),and mutation validation(Cindex:0.739,95%CI:0.720-0.758).Decision curve analysis revealed that RPSS significantly outperformed the clinicopathologic-based model in terms of clinical usefulness(All P<0.05).Conclusions:This study established a radiomics prognostic scoring system as RPSS that can be conveniently used to achieve individualized prediction of PFS probability for stageⅣNSCLC patients treated with platinumbased chemotherapy,which holds promise for guiding personalized pre-therapy of stageⅣNSCLC. | Lan He Zhenhui Li Xin Chen Yanqi Huang Lixu Yan Changhong Liang Zaiyi Liu | 2021 | Chinese Journal of Cancer Research2021,33,5: | 3 |
| 11 | Shape-controlled synthesis of liquid metal nanodroplets for photothermal therapy显示文摘The capping agents for liquid metal (LM) nanodroplets in aqueous solutions are restricted to thiol-containing and positively-charged molecules or macromolecules.However,both thiolate-metal complex and electrostatic interaction are liable to detachment upon strong mechanical forces such as sonication,leading to limited stability and applications.To address this,we utilized ultrasmall water soluble melanin nanoparticles (MNPs) as the capping agent,which exhibited strong metal binding capability with the oxide layer of gallium based LMs and resulted in enhanced stability.Interestingly,shape-controlled synthesis of LM nanodroplets can be achieved by the incorporation of MNPs.Various EGaln nanostructures including nanorice,nanosphere and nanorod were obtained by simply tuning the feed ratio,sonication time,and suspension temperature.Among these shapes,EGaln nanorice has the best photothermal conversion efficiency,which could be leveraged for photothermal therapy. | Junjie Yan Xudong Zhang Yang Liu Yanqi Ye Jicheng Yu Qian Chen Jinqiang Wang Yuqi Zhang Quanyin Hu Yang Kang Min Yang Zhen Gu | 2019 | Nano Research2019,12,6: | 2 |
| 12 | OTUD5 promotes innate antiviral and antitumor immunity through deubiquitinating and stabilizing STING显示文摘Stimulator of interferon genes(STING)is an adaptor protein that is critical for effective innate antiviral and antitumor immunity.The activity of STING is heavily regulated by protein ubiquitination,which is fine-tuned by both E3 ubiquitin ligases and deubiquitinases.Here,we report that the deubiquitinase OTUD5 interacts with STING,cleaves its K48-linked polyubiquitin chains,and promotes its stability.Consistently,knockout of OTUD5 resulted in faster turnover of STING and subsequently impaired type I IFN signaling following cytosolic DNA stimulation.More importantly,Lyz2-Cre Otud5^(fl/Y) mice and CD11-Cre Otud5^(fl/Y) mice showed more susceptibility to herpes simplex virus type 1(HSV-1)infection and faster development of melanomas than their corresponding control littermates,indicating that OTUD5 is indispensable for STING-mediated antiviral and antitumor immunity.Our data suggest that OTUD5 is a novel checkpoint in the cGAS-STING cytosolic DNA sensing pathway. | Yunyun Guo Fei Jiang Lingli Kong Haifeng Wu Honghai Zhang Xiaorong Chen Jian Zhao Baoshan Cai Yanqi Li Chunhong Ma Fan Yi Lei Zhang Bingyu Liu Yi Zheng Lingqiang Zhang Chengjiang Gao | 2021 | Cellular & Molecular Immunology2021,18,8: | 2 |
| 13 | The 1 PW/0.1 Hz laser beamline in SULF facility显示文摘In this paper,we report the recent progress on the 1 PW/0.1 Hz laser beamline of Shanghai Superintense Ultrafast Laser Facility(SULF).The SULF-1 PW laser beamline is based on the double chirped pulse amplification(CPA)scheme,which can generate laser pulses of 50.8 J at 0.1 Hz after the final amplifier;the shot-to-shot energy fluctuation of the amplified pulse is as low as 1.2%(std).After compression,the pulse duration of 29.6 fs is achieved,which can support a maximal peak power of 1 PW.The contrast ratio at-80 ps before main pulse is measured to be 2.5×10^-11.The focused peak intensity is improved by optimizing the angular dispersion in the grating compressor.The maximal focused peak intensity can reach 2.7×10^19W/cm2 even with an f/26.5 off-axis parabolic mirror.The horizontal and vertical angular pointing fluctuations in 1 h are measured to be 1.89 and 2.45μrad,respectively.The moderate repetition rate and the good stability are desirable characteristics for lasermatter interactions.The SULF-1 PW laser beamline is now in the phase of commissioning,and preliminary experiments of particle acceleration and secondary radiation under 300–400 TW/0.1 Hz laser condition have been implemented.The progress on the experiments and the daily stable operation of the laser demonstrate the availability of the SULF-1 PW beamline. | Zongxin Zhang Fenxiang Wu Jiabing Hu Xiaojun Yang Jiayan Gui Penghua Ji Xingyan Liu Cheng Wang Yanqi Liu Xiaoming Lu Yi Xu Yuxin Leng Ruxin Li Zhizhan Xu | 2020 | High Power Laser Science and Engineering2020,8,1: | 2 |
| 14 | Overexpressed CacyBP/SIP leads to the suppression of growth in renal cell carcinoma显示文摘 | Shiren Sun Xiaoxuan Ning Jie Liu Lili Liu Yu Chen Shuang Han Yanqi Zhang Jie Liang Kaichun Wu Daiming Fan | 2007 | Biochemical and Biophysical Research Communications2007,,4: | 2 |
| 15 | Broadband Cr^(3+)-sensitized upconversion luminescence of LiScSi_(2)O_(6):Cr^(3+)/Er^(3+)显示文摘Broadband sensitization is an effective strategy to enhance the upconversion luminescence(UCL) of lanthanide ions.Herein,novel UC materials LiScSi_(2)O_(6):Cr^(3+)/Er^(3+)(LSS:Cr^(3+)/Er^(3+)) were synthesized by high-temperature solid state reaction and their luminescent properties were investigated.LSS:Cr^(3+)/Er^(3+)has the broadband absorption in the spectral range of 600-800 nm,and meanwhile shows green UC emissions of Er^(3+)upon pumping Cr^(3+) by the 690 nm laser.The UCL of LSS:Cr^(3+)/Er^(3+)belongs to the twophoton process and is attributed to the energy transfer upconversion mechanism.The effects of the Cr^(3+)and Er^(3+)concentration as well as the Yb^(3+)introduction were also studied.LSS:Cr^(3+)/Yb^(3+)/Er^(3+) exhibits the interesting dual-mode UCL,capable of generating the UCL of Cr^(3+) upon pumping Yb^(3+)ions and the UCL of upon pumping Cr^(3+) ions.This research might promote the development of novel broadband Cr^(3+)-sensitized UC materials. | Yu Duan Yanqi Liu Guangjun Zhang Leqi Yao Qiyue Shao | 2021 | Journal of Rare Earths2021,39,10: | 2 |
| 16 | Tyrosine phosphatase Shp2 regulates pi 15RhoGEF/Rhodependent dendritic cell migration显示文摘The orchestrated migration of dendritic cells(DCs)to secondary lymphoid organs relies on C-C chemokine receptor type 7(CCR7)and its ligand C-C motif chemokine ligand 19(CCL19),and DC migration to lymph nodes is crucial for the initiation and progression of adaptive immune responses. | Yun Xu Yun Zhang Yanyan Yang Yanqi Liu Qiaoying Tian Pan Liu Zhifan Ding Hongqiang Cheng Xue Zhang Yuehai Ke | 2021 | Cellular & Molecular Immunology2021,18,3: | 2 |
| 17 | Coupling radiomics analysis of CT image with diversification of tumor ecosystem: A new insight to overall survival in stage Ⅰ-Ⅲ colorectal cancer显示文摘Objective: This study aimed to establish a method to predict the overall survival(OS) of patients with stage Ⅰ-Ⅲ colorectal cancer(CRC) through coupling radiomics analysis of CT images with the measurement of tumor ecosystem diversification.Methods: We retrospectively identified 161 consecutive patients with stage Ⅰ-Ⅲ CRC who had underwent radical resection as a training cohort. A total of 248 patients were recruited for temporary independent validation as external validation cohort 1, with 103 patients from an external institute as the external validation cohort 2. CT image features to describe tumor spatial heterogeneity leveraging the measurement of diversification of tumor ecosystem, were extracted to build a marker, termed the EcoRad signature. Multivariate Cox regression was used to assess the EcoRad signature, with a prediction model constructed to demonstrate its incremental value to the traditional staging system for OS prediction.Results: The EcoRad signature was significantly associated with OS in the training cohort [hazard ratio(HR)=6.670;95% confidence interval(95% CI): 3.433-12.956;P<0.001), external validation cohort 1(HR=2.866;95% CI: 1.646-4.990;P<0.001) and external validation cohort 2(HR=3.342;95% CI: 1.289-8.663;P=0.002).Incorporating the EcoRad signature into the prediction model presented a higher prediction ability(P<0.001) with respect to the C-index(0.813, 95% CI: 0.804-0.822 in the training cohort;0.758, 95% CI: 0.751-0.765 in the external validation cohort 1;and 0.746, 95% CI: 0.722-0.770 in external validation cohort 2), compared with the reference model that only incorporated tumor, node, metastasis(TNM) system, as well as a better calibration,improved reclassification and superior clinical usefulness.Conclusions: This study establishes a method to measure the spatial heterogeneity of CRC through coupling radiomics analysis with measurement of diversification of the tumor ecosystem, and suggests that this approach could effectively predict OS and could be used as a supplement for risk stratification among stage Ⅰ-Ⅲ CRC patients. | Yanqi Huang Lan He Zhenhui Li Xin Chen Chu Han Ke Zhao Yuan Zhang Jinrong Qu Yun Mao Changhong Liang Zaiyi Liu | 2022 | Chinese Journal of Cancer Research2022,34,1: | 2 |
| 18 | Insights into the Formation Mechanism of Low Water Saturation in Longmaxi Shale in the Jiaoshiba Area, Eastern Sichuan Basin显示文摘Investigating the variation of water content in shale reservoir is important to understand shale gas enrichment and evaluate shale gas resource potential.Low water saturation is widely spread in Longmaxi marine organic-rich shale.To illustrate the formation mechanism of low water saturation,this paper analyzed water saturation of Longmaxi shale reservoir,restored the history of natural gas carrying water capacity combining homogenization temperature and trapping pressure of fluid inclusion with simulated thermal history,and established a model to explain pore water displaced by natural gas during the thermal evolution.Results show that the gas-rich Longmaxi shale reservoir is characterized by low water saturation with measured values ranging from 9.81%to 48.21%and an average value of 28.22%.TOC in high-mature to over-high-mature Longmaxi organic-rich shale is negatively correlated with water saturation,indicating that well-connected organic pores are not available for water.However,quartz and clay mineral content are positively correlated with water saturation,which suggests that inorganic-matter-hosted pores are the main storage space for water formation.The water carrying capacity of natural gas varies as a function of gas generation and expulsion history,which displaces bound and movable water in organic pores that are part of bound and movable water from inorganic pores.The process can be divided into two phases.The first phase occurred due to the kerogen degradation into gas at Ro of 1.2%–1.6%with a water carrying capacity of natural gas ranging from 5632.57–7838.73 g/km3.The second phase occurred during the crude oil cracking into gas at Ro>1.6%with a water carrying capacity of natural gas ranging from 10620.04 and 19480.18 g/km3.The water displacement associated with natural gas generation and migration resulted in gas filling organic pores and gas-water coexisting in the brittle-mineral-hosted pores and clay-mineral-hosted pores. | Yanqi Zhang Li Liu | 2021 | Journal of Earth Science2021,32,4: | 2 |
| 19 | Review on mechanisms and structure-activity relationship of hypoglycemic effects of polysaccharides from natural resources显示文摘Diabetes mellitus(DM)is a common multifactorial disease,causing various complications,such as chronic metabolism.The current therapies for diabetes mellitus are commercial diabetic drugs that have different definite side effect.However,polysaccharides mainly extracted from natural resources,have advantages of safety,accessibility,and anti-diabetic potential.We have summarized recent research of natural polysaccharides with hypoglycemic activities,focusing on different pharmacological mechanisms in various cell and animal models.The relationships of structure-hypoglycemic effect are also discussed in detail.This review could provide a comprehensive perspective for better understanding on development and mechanism of natural polysaccharides against diabetes mellitus,which have been required by clinical studies yet. | Xiaolong Ji Jianhang Guo Tengzheng Cao Tingting Zhang Yanqi Liu Yizhe Yan | 2023 | Food Science and Human Wellness2023,12,6: | 2 |
| 20 | 拓普替康联合全脑照射肺癌脑转移的Ⅰ期临床试验(英文)显示文摘Objective:The aim of this study was to define the maximum-tolerated dose (MTD) and observe the toxicity of escalating topotecan combined whole brain radiotherapy for brain metastasis in lung cancer. Methods:Patients with brain metastasis of lung cancer received conventional fractionation radiotherapy, with 5 daily fractions of 2 Gy per week, the total radiation dose was 40 Gy, while the larger lesions were boosted to 50-60 Gy. The initial dose of topotecan was 1.0 mg/m 2 . Escalation dose was 0.25 mg/m 2.Every cohort contained at least 3 patients.If no dose-limiting toxicity (DLT) was observed,the next dose level was opened for entry. These courses were repeated until DLT appeared. MTD was declared as one dose level below which DLT appeared. Results:Eighteen patients were recruited. Two cases of grade 3 leucopenia/neutropenia was observed as DLT at the level of topotecan 2.0 mg/m 2 . MTD of topotecan was defined as 1.75 mg/m 2 .The major side effects were leucopenia/neutropenia, nausea and vomiting. Conclusion:Topotecan combined with whole brain radiotherapy for brain metastasis in lung cancer is well tolerated. Maximum-tolerated dose of topotecan is 1.75 mg/m 2 , once a week of a total of four. | Xiaohui Ge Wenyan Zhao Xiaocang Ren Yongqiang Wang Zhigang Li Yanqi Li Yuee Liu Qiang Lin | 2012 | The Chinese-German Journal of Clinical Oncology2012,11,8: | 1 |