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69篇 您的检索式:作者名="Xiaojin Li"
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1Polyphyllin I induces G2/M phase arrest and apoptosis in U251 human glioma cells via mitochondrial dysfunction and the JNK signaling pathway显示文摘Glioblastoma 是最好攻击的大脑肿瘤,并且它的预后仍然保持差。因此,新奇治疗学的策略为 glioma 治疗被需要。Polyphyllin 我(PPI ) ,从巴黎 polyphylla 提取的 bioactive 成分,被报导有反肿瘤活动。然而,为这项活动的详细机制仍然保持不清楚。这里,我们在 vitro 在 glioma 房间和它的机制上调查了 PPI 的禁止的效果。U251 房间为 24 ~ 72 h 与 PPI (2-9 M ) 的各种各样的集中被对待。由 PPI 的 U251 房间增长的抑制被 MTT 试金估计。房间周期和 apoptosis 上的效果被流动 cytometry 与 PI 和 annexin V-FITC/PI 检验双染色,并且房间 mitochondrial 膜潜力水平被荧光显微镜学评估, JC-1 染色。apoptosis 相关的蛋白质和 JNK 信号小径蛋白质的表达式层次被西方的污点分析评估。结果证明 PPI 显著地以一种集中依赖者方式禁止了 U251 房间的增长。PPI 导致了 G 2/M 阶段拘捕和 apoptosis,并且它 upregulated Bax,细胞色素 c,和 p-JNK 的表情,而是 downregulated 在 U251 房间的 anti-apoptotic 蛋白质 Bcl-2 的表示。而且, PPI 挑起了 mitochondrial 膜潜力的去极。另外, PPI 导致的 apoptosis 被 JNK 禁止者 SP600125 显著地压制。我们的数据提供 PPI 禁止增长并且在 U251 房间导致 apoptotic 房间死亡的证据。这效果可以与 JNK 小径被联系。这些结果建议 PPI 是与潜在的 anti-glioma 效果表明小径的 JNK 的使活跃之物。Jiaxin Liu Yueting Zhang Li Chen Fei Yu Xiaojin Li Dan Tao Jianhua Zhao Shuai Zhou 2017Acta Biochimica et Biophysica Sinica2017,49,6:11
2Regional Distribution and Sustainable Development Strategy of Mineral Resources in China显示文摘This paper summarizes the distribution and production layout of the major mineral resources in China,including coal,iron ore,copper and bauxite,from a national perspective.It also identifies the incompatibility between the mineral resources distribution and regional economic development.Significant issues with China's mineral resource industry cause challenges for the sustainable development of both the mining industry and the national socio-economy.The sustainability of regional mineral resources and the environmental pollution by mining in the western China were also analyzed.Results show that the distribution of China's mineral resources is misaligned with its regional layout of economic development.China's mineral resources have been over-exploited,and the mineral resources production in the eastern China is unsustainable.The continuously expanding production of mineral resources in the western China has heavily endangered the ecological environment.We propose strategies to boost the sustainable development of mineral resources,including measures to accelerate economic development and enhance the sustainability of domestic mineral resources.We also offer suggestions for scientifically planning the mineral resource prospecting and exploitation and regional economic layout,as well as for proactively undertaking industry transfer in the eastern China and raising the environmental benchmark requirements for the mineral industry in the central and western China.LI Chaofeng WANG Anjian CHEN Xiaojin CHEN Qishen ZHANG Yanfei LI Ying 2013Chinese Geographical Science2013,23,4:11
3Puerarin prevents high glucose-induced apoptosis of Schwann cells by inhibiting oxidative stress显示文摘Oxidative stress may be the unifying factor for the injury caused by hyperglycemia in diabetic peripheral neuropathy. Puerarin is the major isoflavonoid derived from Radix puerariae and has been shown to be effective in increasing superoxide dismutase activity. This study sought to investigate the neuroprotective effect of puerarin on high glucose-induced oxidative stress and Schwann cell apoptosis in vitro. Intracellular reactive oxygen radicals and mitochondrial transmembrane potential were detected by flow cytometry analysis. Apoptosis was confirmed by TUNEL and oxidative stress was monitored using an enzyme-linked immunosorbent assay for the DNA marker 8-hydroxy-2-deoxyguanosine. The expression levels of bax and bcl-2 were analyzed by quantitative real-time reverse transcriptase-PCR, while protein expression of cleaved caspase-3 and -9 were analyzed by means of western blotting. Results suggested that puerarin treatment inhibited high glucose-induced oxidative stress, mitochondrial depolarization and apoptosis in a dose-dependent manner. Furthermore, puerarin treatment downregulated Bax expression, upregulated bcl-2 expression and attenuated the activation of caspase-3 and -9. Overall, our results indicated that puerarin antagonized high glucose-induced oxidative stress and apoptosis in Schwann cells.Yingying Wu Bing Xue Xiaojin Li Hongchen Liu 2012Neural Regeneration Research2012,7,33:8
4Homozygous loss-of-function mutations in FSIP2 cause male infertility with asthenoteratospermia显示文摘Male infertility, as a major issue of human reproduction health, prevents successful natural conception. Asthenoteratospermia mainly presents one or multiple anomalies in head, neck and tail of spermatozoa, and impairs sperm function and motility (Coutton et al., 2015). Recurrent abnormalities of the fibrous sheath lead to multiple morphological abnormaliries of the sperm flagella (MMAF), which is a quite frequent type of asthenoteratospermia in male infertility (Chemes et al., 1987;Ben Khelifa et al, 2014).Wangjie Liu Huan Wu Li Wang Xiaoyu Yang Chunyu Liu Xiaojin He Weiyu Li Jiajia Wang Yujie Chen Hongyan Wang Yang Gao Shuyan Tang Shenmin Yang Li Jin Feng Zhang Yunxi Cao 2019Journal of Genetics and Genomics2019,46,1:7
5Isolation and characterization of a novel lectin with antifungal and antiproliferative activities from Sophora alopecuroides seeds显示文摘Sophora alopecuroides lectin (柳安) ,从 Sophora alopecuroides 的种子的新奇 lectin,被离子交换层析在 diethylaminoethyl (DEAE ) 上净化 - 并且 carboxymethyl (厘米)-Sepharose 列,在 Sephadex 75 10/300 GL 列上由胶化过滤列在后面。柳安被发现是 39916.3 Da 的单体,由 tricine 钠 dodecyl sulphate-polyacrylamide 胶化电气泳动和高效的液体层析决定了 HPLC ) 。柳安的 N 终端 10-amino 酸顺序, KPWALSFSFG,另外的荚 lectins 类似于那些。对在 11.9 g/ml 的兔子红血球的柳安展览 hemagglutinating 活动。它的 hemagglutinating 活动在 pH 范围是稳定的 711 并且在温度范围 3090 吗?Tingting Li Xiaoli Yin Dongliang Liu Xiaojin Ma Hui Lv Surong Sun 2012Acta Biochimica et Biophysica Sinica2012,44,7:6
6The transmembrane domain of TACE regulates protein ectodomain shedding显示文摘众多的膜蛋白质被变换酶的肿瘤坏死 factor-alpha 劈开(不作声) ,它引起他们的 ectodomains 的版本。ADAM (一个 disintegrin 和 metalloprotease 领域) 家庭成员,不作声包含谁的几个非催化的领域在流的 ectodomain 的角色还得充分被解决。这里,我们探索了 transmembrane 领域(TM ) 的功能由联合分子的工程和功能的分析不作声。一 TM 免费不作声被有约束力的多肽没能恢复转变生长 factor-alpha (TGF-alpha ) 流的 glycosylphosphatidylinositol (GPI ) 抛锚到血浆膜的构造,肿瘤坏死 factor-alpha (TNF-alpha ) 和在细胞缺乏的 L-selectin 内长不作声活动。有催乳激素受体或导出血小板的生长因素受体(PDGFR ) 的 TACE TM 的替换也导致了流的 TGF-alpha 的严重损失,但是没在 TNF-alpha 和 L-selectin 的劈开上有效果。在有 L-selectin 的 TGF-alpha 的 TM 的代替启用了由带催乳激素受体和 PDGFR 的 TM 的 TACE 异种流的 TGF-alpha。总起来说,我们的观察建议那个抛锚通过 TM 不作声到类脂化合物双性人层为许多底层的有效劈开被要求,并且氨基酸的顺序不作声 TM 可以在规章的特性起一个作用在之中不作声底层。Xiaojin Li Liliana Pére Zui Pan Huizhou Fan 2007Cell Research2007,17,12:5
7Classification of cultivated Chinese medicinal plants based on fractal theory and gray level co-occurrence matrix textures显示文摘ZHENG Shudan ZHENG Jianghua SHI Minghui GUO Baolin SEN Bati SUN Zhiqun JIA Xiaoguang LI Xiaojin 2014遥感学报2014,18,4:5
8Biodegradation of n-hexadecane by bacterial strains B1 and B2 isolated from petroleum-contaminated soil显示文摘Two hydrocarbon-biodegrading bacterial strains,B1 and B2,were isolated from petroleum-contaminated soil collected from Tianjin,China.The strains were identified as Pseudomonas aeruginosa(B1) and Acinetobacter junii(B2).The degradation rate of n-hexadecane by B1 and B2 reached 96% and 78% respectively after 7 days,though the strains employed different mechanisms of degradation.The results showed that B2 was not able to use glucose as carbon source.B1 could produce glycolipid surfactants using glucose as the carbon source,according to the results of blue agar plate analysis and thin layer chromatography(TLC),and the bacterial culture of B1 had a high oil discharge and emulsification activity.Both B1 and B2 could produce biosurfactants with hexadecane as the sole carbon source,but their modes of action were different.The carbon source was found to affect the cell surface hydrophobicity.Cell surface hydrophobicity was poor with glucose as the carbon source,but enhanced when hexadecane was used as the carbon source.LIU Tao WANG FengHua GUO LanPing LI XiaoLiang YANG XiaoJin LIN Ai Jun 2012Science China Chemistry2012,55,9:4
9Mid‐infrared all‐fiber gain‐switched pulsed laser at 3μm显示文摘Mid-infrared(MIR)fiber pulsed lasers are of tremendous application interest in eye-safe LIDAR,spectroscopy,chemical detection and medicine.So far,these MIR lasers largely required bulk optical elements,complex free-space light alignment and large footprint,precluding compact all-fiber structure.Here,we proposed and demonstrated an all-fiberized structured gain-switched Ho3+-doped ZBLAN fiber laser operating around 2.9μm.A home-made 1146 nm Raman fiber pulsed laser was utilized to pump highly concentrated single-cladding Ho3+-doped ZBLAN fiber with different lengths of 2 m or 0.25 m.A home-made MIR fiber mirror and a perpendicular-polished ZBLAN fiber end construct the all-fiberized MIR cavity.Stable gain-switched multiple states with a sub-pulse number tuned from 1 to 8 were observed.The effects of gain fiber length,pump power,pump repetition rate and output coupling ratio on performance of gain-switched pulses were further investigated in detail.The shortest pulse duration of 283 ns was attained with 10 kHz repetition rate.The pulsed laser,centered at 2.92μm,had a maximum average output power of 54.2 mW and a slope efficiency of 10.12%.It is,to the best of our knowledge,the first time to demonstrate a mid-infrared gain-switched Ho3+:ZBLAN fiber laser with compact all-fiber structure.Xiaojin Zhang Weiwei Li Jin Li Huiying Xu Zhiping Cai Zhengqian Luo 2020Opto-Electronic Advances2020,3,5:4
10Global perspectives and future research directions for the phytoremediation of heavy metal-contaminated soil:A knowledge mapping analysis from 2001 to 2020显示文摘In total,9,552 documents were extracted from the Web of Science Core Collection and subjected to knowledge mapping and visualization analysis for the field of phytoremediation of HM-contaminated soil(PHMCS)with CiteSpace 5.7 R3 software.The results showed that(1)the number of publications increased linearly over the studied period.The top 10 countries/regions,institutions and authors contributing to this field were exhibited.(2)Keyword co-occurrence cluster analysis revealed a total of 8 clusters,including“Bioremediation,”“Arsenic,”“Biochar,”“Oxidative stress,”“Hyperaccumulation,”“EDTA,”“Arbuscular mycorrhizal fungi,”and“Environmental pollution”clusters(3)In total,334 keyword bursts were obtained,and the 25 strongest,longest duration,and newest keyboard bursts were analyzed in depth.The strongest keyword burst test showed that the hottest keywords could be divided into 7 groups,i.e.,“Plant bioremediation materials,”“HM types,”“Chelating amendments,”“Other improved strategies,”“Bioremediation characteristics,”“Risk assessment,”and“Other.”Almost half of the newest topics had emerged in the past 3 years,including“biochar,”“drought,”“health risk assessment,”“electrokinetic remediation,”“nanoparticle,”and“intercropping.”(4)In total,9 knowledge base clusters were obtained in this study.The studies of Ali et al.(2013),Blaylock et al.(1997),Huang et al.(1997),van der Ent et al.(2013),Salt et al.(1995),and Salt(1998),which had both high frequencies and the strongest burst scores,have had the most profound effects on PHMCS research.Finally,future research directions were proposed.Kehui Liu Xiaojin Guan Chunming Li Keyi Zhao Xiaohua Yang Rongxin Fu Yi Li Fangming Yu 2022Frontiers of Environmental Science & Engineering2022,16,6:4
11ZmGRAS11,transactivated by Opaque2,positively regulates kernel size in maize显示文摘Although the genetic basis for endosperm development in maize(Zea mays)has been well studied,the mechanism for coordinating grain filling with increasing kernel size remains elusive.Here,we report that increased kernel size was selected during modern breeding and identify a novel DELLA-like transcriptional regulator,ZmGRAS11,which positively regulates kernel size and kernel weight in maize.We find that Opaque2,a core transcription factor for zein protein and starch accumulation,transactivates the expression of Zm GRAS11.Our data suggest that the Opaque2-Zm GRAS11 module mediates synergistic endosperm enlargement with grain filling.Ye Li Shuai Ma Qianqian Zhao Di Lv Baobao Wang Ke Xiao Jiameng Zhu Suzhen Li Wenzhu Yang Xiaoqing Liu Haiyang Wang Xiaojin Zhou Rumei Chen 2021Journal of Integrative Plant Biology2021,63,12:3
12Molecular cloning of human heat shock protein 27 and study of its protective effects on oxidative damage in rat cardiomyocte H9c2显示文摘Objective: To clone human cardiac heat shock protein 27(HSP27) gene and to determine the effects of HSP27 on the oxidative stress in rat cardiomyocyte cell line H9c2. Methods: Full length of HSP27 cDNA which got by RT-PCR was constructed into pCDNA3.1+. The recombinant was transfected into rat cardiomyocyte cell line H9c2 and the stable transfection cell line was selected by G418. Then we observe the effects of HSP27 over-expression on LDH release and apoptosis induced H2O2 in H9c2. Results:①pCDNA3.1+/HSP27 provided a sound expression of HSP27 in both 293T and H9c2. ②LDH releasing induced by 0, 100,250,500,1000 μmol/L H2O2 in HSP27 over-expression group and wild type group were 0.396±0.017 vs. 0.390±0.009 (p>0.05), 0.437±0.014 vs. 0.416±0.015 (P<0.05), 0.471±0.018 vs. 0.417±0.009 (P<0.001), 0.505±0.030 vs. 0.657±0.022(P<0.001),0.547±0.027 and 0.661±0.011(P<0.001),respectively. ③Apoptosis induced by 150 μmol/L H2O2 in HSP27 over-expression group and wild type group were (10.693±1.122)% vs. (4.027±1.628)%(P<0.01). Conclusion: We cloned and constructed human cardiac HSP27 gene successfully, and over-expression of human HSP27 could inhibit oxidative damage significantly in H9c2.Li Liu Xiaojin Zhang Surong Jiang Xiang Gao Guoxain Ding Yunlin Cheng 2005Journal of Nanjing Medical University2005,19,4:3
13Enhancing anaerobic biogasification of corn stover through wet state NaOH pretreatment显示文摘Mingxia Zheng Xiujin Li Laiqing Li Xiaojin Yang Yanfeng He 2009Bioresource Technology2009,,21:2
14Ginsenoside Rb1 relieves glucose fluctuationinduced oxidative stress and apoptosis in Schwann cells显示文摘Cultured Schwann cells were treated with 5.6 mM and 50 mM glucose alternating every 8 hours to simulate intermittent high glucose. The present study analyzed the neuroprotective effects of 1, 10 and 100 μM ginsenoside Rb1 on oxidative damage and apoptosis in Schwann cells induced by intermittent high glucose. Flow cytometry demonstrated that ginsenoside Rb1 reduced intermittent high glucose-mediated reactive oxygen species production. Enzyme linked immunosorbent assay showed that 8-hydroxy-2-deoxy guanosine levels in Schwann cells decreased following ginsenoside Rb1 treatment. Quantitative real-time reverse transcription-PCR and western blot assay results revealed that ginsenoside Rb1 inhibited intermittent high glucose-upregulated Bax expression, but antagonized intermittent high glucose-downregulated Bcl-2 expression in Schwann cells. These effects were most pronounced with 100 μM ginsenoside Rb1. These results indicate that ginsenoside Rb1 inhibits intermittent high glucose-induced oxidative stress and apoptosis in Schwann cells.Bing Xue Lianqing Sun Xiaojin Li Xuan Wang Ying Zhang Yiming Mu Linlang Liang 2012Neural Regeneration Research2012,7,30:2
15Molecular epidemiology of porcine epidemic diarrhea virus in China显示文摘Jianfei Chen Chengbao Wang Hongyan Shi Huaji Qiu Shengwang Liu Xiaojin Chen Zhibang Zhang Li Feng 2010Archives of Virology2010,,9:2
16Recent Advances in Mathematical Programming with Semi-continuous Variables and Cardinality Constraint显示文摘Mathematical programming problems with semi-continuous variables and cardinality constraint have many applications,including production planning,portfolio selection,compressed sensing and subset selection in regression.This class of problems can be modeled as mixed-integer programs with special structures and are in general NP-hard.In the past few years,based on new reformulations,approximation and relaxation techniques,promising exact and approximate methods have been developed.We survey in this paper these recent developments for this challenging class of mathematical programming problems.Xiaoling Sun Xiaojin Zheng Duan Li 2013Journal of the Operations Research Society of China2013,1,1:2
17Spleen-kidney supplementing formula alleviates insulin resistance via regulating AKT/glycogen synthase kinase 3β pathway in rats with type 2 diabetic induced by high-fat diet显示文摘OBJECTIVE: To explore the molecular mechanism underpinning the action by investigating its effect on glycogen content and AKT(also known as protein kinase B)/glycogen synthase kinase 3β(GSK-3β) pathway in the liver of rats with type 2 diabetic induced by high-fat diet.METHODS: The rat model of type 2 diabetes was induced by high-fat diet and multiple low-dose streptozotocin injection. Diabetic rats were divided into five groups: the model control group, the Metformin group, spleen-kidney supplementing formula groups of low, medium and high doses. Fasting blood glucose(FBG) levels were measured before treatment and every two weeks during treatment.After the treatment, oral glucose tolerance test was performed, and hemoglobin A1c (HbA1c) and C-peptide were measured to assess the formula's effect on glucose metabolism and insulin resistance. The protein expression levels of AKT, GSK-3βand their phosphorylated forms in the liver were also measured to study the formula's role in insulin signaling pathway.RESULTS: Spleen-kidney supplementing formula significantly relieved the symptoms of polydipsia,polyuria and weight loss in type 2 diabetic rats, reduced FBG and HbA1c levels, increased glycogen content, and improved insulin sensitivity. The anti-diabetic effects of spleen-kidney supplementing formula are dose dependent. It also increased the total AKT protein level and the GSK-3β phosphorylation in the liver of type 2 diabetic rats.CONCLUSION: Spleen-kidney supplementing formula has hypoglycemic effect and relieves insulin resistance by enhancing AKT/GSK-3β signaling pathway in the liver of type 2 diabetic rats.Tian Chunyu Wang Ya La Xiaojin Li Ji'an Zhang Biwei 2019Journal of Traditional Chinese Medicine2019,39,2:2
18Continuous monitoring of diabetes with an integrated microneedle biosensing device through 3D printing显示文摘Diabetes is a prevalent chronic metabolic disease with multiple clinical manifestations and complications,and it is among the leading causes of death.Painless and continuous monitoring of interstitial glucose is highly desirable for diabetes management.Here we unprecedentedly show continuous monitoring of diabetes with an integrated microneedle biosensing device.The device was manufactured with a 3D printing process,a microfabrication process,an electroplating process,and an enzyme immobilization step.The device was inserted into the dermis layer of mouse skin and showed accurate sensing performance for monitoring subcutaneous glucose levels in normal or diabetic mice.The detection results were highly correlated with those obtained from a commercial blood glucose meter.We anticipate that the study could open exciting avenues for monitoring and managing diabetes,alongside fundamental studies of subcutaneous electronic devices.Yiqun Liu Qi Yu Xiaojin Luo Li Yang Yue Cui 2021Microsystems & Nanoengineering2021,7,5:2
19GPP(composition of Ganoderma lucidum polysaccharides and Polyporus umbellatus polysaccharides) protects against DSS-induced murine colitis by enhancing immune function and regulating intestinal flora显示文摘Previous study have demonstrated that a compound composed of water-soluable Ganoderma lucidum polysaccharides(GLP)and Polyporus umbellatus polysaccharides(PUP)in a ratio of 3:1 named GPP enhances innate immune function in mice through enhancing the function of macrophage cells and activity of natural killer(NK)cells.Here in our research,we further investigated the effect of GPP on the diversity and composition of intestinal flora,and explored its effect on colitis model mice.The immunoregulatory verification experiments of GPP were conducted in both normal and DSS-induced mice model.Our research showed that GPP increased the diversity of intestinal microorganisms in mice with the extension of administration time.Daily GPP intake attenuated DSS-induced colon injury,protected the splenic lymphocyte proliferation ability,enhanced the serum hemolysin synthesis,and increased peripheral phagocytes and NK cell activity in model mice.Comparisons of the predominant gene pathways of the bacterial microbiota showed that DNA repair and recombination,base mismatch repair pathways was stronger in GPP-treatment group than in control group,indicating the possible molecular mechanisms of immune function regulation.Our study showed that GPP regulated immune function in both health and colitis model,and had a positive effect on maintaining intestinal flora homeostasis.Liyuan Li Yannan Guo Qing Huang Xiaojin Shi Qingqing Liu Fang Wang Qingfei Liu Kang Yu Zhao Wang 2022Food Science and Human Wellness2022,11,4:2
20Efficacy of ICIs on patients with oncogene-driven non-small cell lung cancer:a retrospective study显示文摘Aim:The objective of our study was to assess the efficacy of immune checkpoint inhibitors(ICIs)on patients with non-small-cell lung cancer(NSCLC)harboring oncogenic alterations.Methods:We retrospectively enrolled patients with advanced non-squamous NSCLC who were treated with anti-PD-1-based monotherapy or combined immunotherapy.Major characteristics including PD-L1 expression,treatment,and survival were analyzed.Results:In total,309 non-squamous NSCLC patients with a median age of 61 years(range 20-88 years)including 70.9%male were retrospectively enrolled.The molecular alterations involved epidermal growth factor receptor(EGFR)(n=81),V-Ki-ras2 Kirsten rat sarcoma viral oncogene homolog(KRAS)(n=31),anaplastic lymphoma kinase(ALK)(n=1),human epidermal growth factor receptor 2(HER2)(n=12),V-raf murine sarcoma viral oncogene homolog(BRAF)(n=2),rearranged during transfection(n=4),and c-ros oncogene 1(ROS1)(n=3).In the EGFR subset,the ORR was 30.9%(n=81)and PFS was significantly shorter than WT group(median PFS:5.7 months vs.7.1 months;P=0.0061).In subgroup analyses,ICI combined therapy was significantly correlated with a longer PFS compared with ICI monotherapy(median PFS:7.7 months vs.4.7 months;P=0.0112).In KRAS patients,ORR was 51.6%(n=31).No significant difference was found in subgroup analyses.The ORR and PFS were 16.7%(n=12)and 28.6%(n=7),7.8 months and 9.0 months for HER2 and EGFR Exon20 insertion patients,respectively.Three ROS1 patients were enrolled with a PFS of 16.0,34.2,and 45.0 months individually,and one ALK patient with PFS of 4.4 months was identified.No response was found in two BRAF patients.Conclusion:ICI-based combination therapy can bring benefit to patients with EGFR-mutant NSCLC.ICI-based combination therapy could be considered for patients with ROS1 rearrangement,HER2 mutation and EGFR Exon20 insertion NSCLC.Xiaojin Guo He Du Jiayu Li Menghang Yang Anweng Xiong Haiping Zhang Fengying Wu 2022Cancer Drug Resistance2022,5,1:2
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