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8篇 您的检索式:作者名="Ruifeng Bai"
    题名 作者 年代 出处 被引量
1KIF18B promotes tumor progression in osteosarcoma by activating β-catenin显示文摘Objective:Osteosarcoma is a common primary highly malignant bone tumor.Kinesin family member 18B(K1F18B)has been identified as a potential oncogene involved in the development and metastasis of several cancer types.While KIF18B overexpression in osteosarcoma tissue is clearly detected,its specific function in the disease process remains to be established.Methods:K IF18B expression was assessed in osteosarcoma tissues and cells.We additionally evaluated the effects of KIF18B on proliferation,migration,and invasion of osteosarcoma cells,both in vitro and in vivo.Results:Our results showed overexpression of KIF18B in osteosarcoma tissues and cells.Knockdown of K IF18B induced G1/S phase arrest and significantly inhibited proliferation,migration,and invasion of osteosarcoma cells,both in vitro and in vivo.K IF18B regulated P-catenin expression at the transcriptional level by controlling nuclear aggregation of ATF2 and at the post-transcriptional level by interacting with the adenomatous polyposis coli(APC)tumor suppressor gene in osteosarcoma cells.Conclusions:KIF18B plays a carcinogenic role in osteosarcoma by regulating expression ofβ-catenin transcriptionally via decreasing nuclear aggregation of ATF2 or post-transcriptionally through interactions with APC.Our collective findings support the potential utility of KIF18B as a novel prognostic biomarker for osteosarcoma.Tian Gao Ling Yu Zhiwei Fang Jiayong Liu Chujie Bai Shu Li Ruifeng Xue Lu Zhang Zhichao Tan Zhengfu Fan 2020Cancer Biology & Medicine2020,17,2:7
2Efficacy of vinorelbine combined with low-dose methotrexate for treatment of inoperable desmoid tumor and prognostic factor analysis显示文摘Objective: To assess the efficacy of conservative chemotherapy for inoperable desmoid tumor(DT) and analyze the prognostic factors.Methods:From November 2008 to April 2016,71 patients of inoperable DT were treated with vinorelbine and low-dose methotrexate in the Department of Bone and Soft Tissue Tumors,Peking University Cancer Hospital&Institute,and enrolled in this retrospective study.The chemotherapy duration is one year.The efficacy of chemotherapy and the prognosis were observed.Results:Of the 71 patients,55% were female.Age of onset varied from 1 to 47 years,and the median age was 14years.Only 11(15.5%)cases suffered primary tumor.The distribution of the site of tumors was:31(43.7%)in the trunk,36(50.7%)in the limbs,and 4(5.6%)in the peritoneal and pelvic cavity.The size of tumor(the maximum diameter)differed from 2 to 37 cm with a mean of 9.3 cm.The median follow-up duration was 28(range,6–87)months.Common side effects included:nausea and vomiting,liver injury,bone marrow suppression and oral ulcers.When the chemotherapy finished,1(1.4%)case achieved complete response,24(33.8%)achieved partial response,37(52.1%)achieved stable disease and 9(12.7%)had progressive disease.The overall response rate was 87.3%.The progression-free survival(PFS)of the participants were from 6 to 87 months,and the 2-,3-and 5-year PFS was 79.9%,68.4% and 36.3%,respectively.No significant difference was identified in PFS in subgroups of gender,age of onset,age of chemotherapy,tumor site and tumor size.Conclusions:For recurrent,inoperable and progressive DT,enough course of chemotherapy with vinorelbine combined with low-dose methotrexate was an optional choice for local control.Shu Li Zhengfu Fan Zhiwei Fang Jiayong Liu Chujie Bai Ruifeng Xue Lu Zhang Tian Gao 2017Chinese Journal of Cancer Research2017,29,5:6
3Tomography of the dynamic stress coefficient for stress wave prediction in sedimentary rock layer under the mining additional stress显示文摘In this study,the tomography of dynamic stress coefficient(TDSC)was established based on a mechanical model of stress wave propagation in bedding planes and a mathematical model of the stress wave attenuation in rock masses.The reliability of the TDSC was verified by a linear bedding plane model and field monitoring.Generally,the TDSC in the dynamic stress propagation of bedding planes increases with the following conditions:(1)the increase of the normal stiffness of the bedding plane,(2)the increase of the incident angle of the stress wave,(3)the decrease of the incident frequency of the stress wave,or(4)the growth of three ratios(the ratios of rock densities,elastic moduli,and the Poisson’s ratios)of rocks on either side of bedding planes.The additional stress weakens TDSC linearly and slowly during the stress wave propagation in bedding planes,and the weakening effect increases with the growth of the three ratios.Besides,the TDSC decreases exponentially in the rock mass as propagation distance increases.In a field case,the TDSC decreases significantly as vertical and horizontal distances increase and its wave range increases as vertical distance increases in the sedimentary rock layers.Wenlong Shen Guocang Shi Yungang Wang Jianbiao Bai Ruifeng Zhang Xiangyu Wang 2021International Journal of Mining Science and Technology2021,31,4:5
4Separation of pulmonary gas-blood bio-impedance and energy analysis based on wavelet transformation 显示文摘Wang Chao Bai Ruifeng Wei Yiming 2014Journal of Tianjin University: Science and Technology2014,47,3:1
5Disposition and fate of polyoxyethylene glycerol ricinoleate as determined by LC-Q-TOF MS coupled with MS^(ALL),SWATH and HR MS/MS techniques显示文摘Polyoxyethylene glycerol ricinoleate(PGR) serves as a solubilizer/emulsifier that is commonly used in pharmaceutical formulations despite being associated with severe anaphylactoid hypersensitivity reactions.Cremophor EL?(CrEL) is the most representative PGR produced from reacting ethylene oxide with castor oil.To help clarify the cause of side effects and potentially improve the safety of PGR-based drug delivery vehicle,we have developed separate but related analytical methods for the quantitation of CrEL and its main metabolites,glycerol ethoxylate(GE) and ricinoleic acid(RA).Since CrEL and GE are highly disperse mixtures of polymers that are not amenable to analysis by conventional liquid chromatographytandem mass spectrometry(LC-MS/MS),we used liquid chromatography-triple-quadrupole-time-of-flight mass spectrometry(LC-Q-TOF MS) combined with product ion data acquisition by MSALLand sequential window acquisition of all theoretical fragments mass spectrometry(SWATH MS),respectively to perform the analysis.In contrast,RA is a single molecular entity that could be readily analyzed using conventional LC-HR MS/MS.Selection of specific fragment ions for CrEL,GE,RA and their internal standards enabled a precise quantitation of such a complex analytes system in rat plasma after a single and simple sample preparation method.Assay validation indicated linearity for CrEL,GE and RA over the concentration ranges 0.2~20.0 μg/mL,0.1~10.0 μg/mL and 0.1~20.0 μg/m L,respectively with satisfactory results for other validation parameters.A subsequent pharmacokinetic study involving single intravenous 200 mg/kg injections of CrEL to rats showed the methods enable comprehensive and high throughput quantitation of CrEL and its metabolites in a biological matrix.Our combination of assays provides effective application in investigating the cause of the hypersensitivity reaction of PGR and potentially to improve its safety for using as a vehicle in drug formulations.Ruifeng Bai Dong Sun Yuqin Shan Zhiqiong Guo Dafeng Chu John Paul Fawcett Jingkai Gu 2021Chinese Chemical Letters2021,32,10:1
6Frequency Response of PV Inverters Toward High Renewable Penetrated Distribution Networks显示文摘Substantial usage of electronic-based renewable energy resources has completely changed the dynamic behaviours and response time of power networks,which are now fundamentally different from traditional power networks dominated by Synchronous Generators(SGs).This paper evaluates the dynamic response of small-scale Photovoltaic(PV)inverters,which dominate the distribution networks and influence the dynamics of the entire power grid.Recently,some critical events which occurred in Australia have shown that the dynamic responses of small-scale inverters do not always follow the inverter standards.Subsequently,these uncertainties make PV inverters’response unpredictable and have the potential to threaten the security of power networks.The detailed investigation of the dynamic response characteristics of small-scale PV inverters to grid disturbances is lacking in the current literature.This paper presents new findings from experimental testing under extensive network disturbance scenarios.Furthermore,a datadriven method is proposed to accurately describe the dynamics of solar PV subjected to various frequency disturbances.The results provide beneficial insight to the network operators in predicting power system response to extreme disturbances and avoiding potential grid instability issues,which will assist in achieving 100%penetration of power electronics-based renewable energy resources in the future.Feifei Bai Yi Cui Ruifeng Yan Tapan Kumar Saha Huajie Gu Daniel Eghbal 2022CSEE Journal of Power and Energy Systems2022,8,2:1
7Phytochemical and pharmacological progress on Syringa oblata,a traditional Mongolian medicine显示文摘Syringa oblata is a traditional Mongolian medicine mainly distributed in the Helan Mountains(the boundaries of Inner Mongolia and Ningxia,China)and the north of Yan Mountains(Aohan Qi,Inner Mongolia,China).It is clinically used to treat diseases caused by Heyi,such as heartache and heat pathogen in the heart.Phytochemical studies on S.oblata revealed the presence of iridoids,lignans,triterpenes,phenylpropanoids,phenylethanoids,and volatile components.Pharmacological investigations revealed a broad spectrum of bioactivities,such as antimicrobial,antioxidant,antiproliferative,and hepatoprotective effects.This article summarized the chemical components and pharmacological activities of S.oblata,providing a scientific rationale for its bioactive constituents,quality control,and utilization as an important medicine.Badalahu Tai Laxinamujila Bai Ruifeng Ji Muyao Yu NAla Luqi Huang Han Zheng 2022Chinese Herbal Medicines2022,14,3:0
8Genetic Architecture of Childhood Kidney and Urological Diseases in China显示文摘Kidney disease is manifested in a wide variety of phenotypes,many of which have an important hereditary component.To delineate the genotypic and phenotypic spectrum of pediatric nephropathy,a multicenter registration system is being imple-mented based on the Chinese Children Genetic Kidney Disease Database(CCGKDD).In this study,all the patients with kidney and urological diseases were recruited from 2014 to 2020.Genetic analysis was conducted using exome sequencing for families with multiple affected individuals with nephropathy or clinical suspicion of a genetic kidney disease owing to early-onset or extrarenal features.The genetic diagnosis was confirmed in 883 of 2256(39.1%)patients from 23 provinces in China.Phenotypic profiles showed that the primary diagnosis included steroid-resistant nephrotic syndrome(SRNS,23.5%),glomerulonephritis(GN,32.2%),congenital anomalies of the kidney and urinary tract(CAKUT,21.2%),cystic renal disease(3.9%),renal calcinosis/stone(3.6%),tubulopathy(9.7%),and chronic kidney disease of unknown etiology(CKDu,5.8%).The pathogenic variants of 105 monogenetic disorders were identified.Ten distinct genomic disorders were identified as pathogenic copy number variants(CNVs)in 11 patients.The diagnostic yield differed by subgroups,and was highest in those with cystic renal disease(66.3%),followed by tubulopathy(58.4%),GN(57.7%),CKDu(43.5%),SRNS(29.2%),renal calcinosis/stone(29.3%)and CAKUT(8.6%).Reverse phenotyping permitted correct identification in 40 cases with clinical reassessment and unexpected genetic conditions.We present the results of the largest cohort of children with kidney disease in China where diagnostic exome sequencing was performed.Our data demonstrate the utility of family-based exome sequencing,and indicate that the combined analysis of genotype and phenotype based on the national patient registry is pivotal to the genetic diagnosis of kidney disease.Ye Fang Hua Shi Tianchao Xiang Jiaojiao Liu Jialu Liu Xiaoshan Tang Xiaoyan Fang Jing Chen Yihui Zhai Qian Shen Guomin Li Li Sun Yunli Bi Xiang Wang Yanyan Qian Bingbing Wu Huijun Wang Wenhao Zhou Duan Ma Jianhua Mao Xiaoyun Jiang Shuzhen Sun Ying Shen Xiaorong Liu Aihua Zhang Xiaowen Wang Wenyan Huang Qiu Li Mo Wang Xiaojie Gao Yubin Wu Fang Deng Ruifeng Zhang Cuihua Liu Li Yu Jieqiu Zhuang Qing Sun Xiqiang Dang Haitao Bai Ying Zhu Siguang Lu Bili Zhang Xiaoshan Shao Xuemei Liu Mei Han Lijun Zhao Yuling Liu Jian Gao Ying Bao Dongfeng Zhang Qingshan Ma Liping Zhao Zhengkun Xia Biao Lu Yulong Wang Mengzhun Zhao Jianjiang Zhang Shan Jian Guohua He Huifeng Zhang Bo Zhao Xiaohua LI Feiyan Wang Yufeng Li Hongtao Zhu Xinhui Luo Jinghai Li Jia Rao Hong Xu 2021Phenomics2021,1,3:0
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