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Analysis of the influencing factors and clinical related characteristics of pulmonary tuberculosis in patients with type 2 diabetes mellitus 被引量:2
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作者 Han Shi Yuan Yuan +3 位作者 xue li Yan-Fang li ling Fan xue-Mei Yang 《World Journal of Diabetes》 SCIE 2024年第2期196-208,共13页
BACKGROUND In China,the prevalence of type 2 diabetes mellitus(T2DM)among diabetic patients is estimated to be between 90%-95%.Additionally,China is among the 22 countries burdened by a high number of tuberculosis cas... BACKGROUND In China,the prevalence of type 2 diabetes mellitus(T2DM)among diabetic patients is estimated to be between 90%-95%.Additionally,China is among the 22 countries burdened by a high number of tuberculosis cases,with approximately 4.5 million individuals affected by active tuberculosis.Notably,T2DM poses a significant risk factor for the development of tuberculosis,as evidenced by the increased incidence of T2DM coexisting with pulmonary tuberculosis(T2DMPTB),which has risen from 19.3%to 24.1%.It is evident that these two diseases are intricately interconnected and mutually reinforcing in nature.AIM To elucidate the clinical features of individuals diagnosed with both T2DM and tuberculosis(T2DM-PTB),as well as to investigate the potential risk factors associated with active tuberculosis in patients with T2DM.METHODS T2DM-PTB patients who visited our hospital between January 2020 and January 2023 were selected as the observation group,Simple DM patients presenting to our hospital in the same period were the control group,Controls and case groups were matched 1:2 according to the principle of the same sex,age difference(±3)years and disease duration difference(±5)years,patients were investigated for general demographic characteristics,diabetes-related characteristics,body immune status,lifestyle and behavioral habits,univariate and multivariate analysis of the data using conditional logistic regression,calculate the odds ratio(OR)values and 95%CI of OR values.RESULTS A total of 315 study subjects were included in this study,including 105 subjects in the observation group and 210 subjects in the control group.Comparison of the results of both anthropometric and biochemical measures showed that the constitution index,systolic blood pressure,diastolic blood pressure and lymphocyte count were significantly lower in the case group,while fasting blood glucose and high-density lipoprotein cholesterol levels were significantly higher than those in the control group.The results of univariate analysis showed that poor glucose control,hypoproteinemia,lymphopenia,TB contact history,high infection,smoking and alcohol consumption were positively associated with PTB in T2DM patients;married,history of hypertension,treatment of oral hypoglycemic drugs plus insulin,overweight,obesity and regular exercise were negatively associated with PTB in T2DM patients.Results of multivariate stepwise regression analysis found lymphopenia(OR=17.75,95%CI:3.40-92.74),smoking(OR=12.25,95%CI:2.53-59.37),history of TB contact(OR=6.56,95%CI:1.23-35.03)and poor glycemic control(OR=3.37,95%CI:1.11-10.25)was associated with an increased risk of developing PTB in patients with T2DM,While being overweight(OR=0.23,95%CI:0.08-0.72)and obesity(OR=0.11,95%CI:0.02-0.72)was associated with a reduced risk of developing PTB in patients with T2DM.CONCLUSION T2DM-PTB patients are prone to worse glycemic control,higher infection frequency,and a higher proportion of people smoking,drinking alcohol,and lack of exercise.Lymphopenia,smoking,history of TB exposure,poor glycemic control were independent risk factors for T2DM-PTB,and overweight and obesity were associated with reduced risk of concurrent PTB in patients with T2DM. 展开更多
关键词 Type 2 diabetes Pulmonary tuberculosis Blood sugar INFECTION Risk factors
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The metabolic profiling of Chinese yam fermented by Saccharomyces boulardii and the biological activities of its ethanol extract in vitro
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作者 xue li Yiwen Shao +7 位作者 limin Hao Qiaozhen Kang Xiaolong Wang Jiaqing Zhu Changcheng Zhao Yanling Shi Jike Lu Juanjuan Yi 《Food Science and Human Wellness》 SCIE CAS CSCD 2024年第5期2718-2726,共9页
Chinese yam(Dioscorea opposita Thunb.),as one of the medicinal and edible homologous plants,is rich in various nutrients and functional factors.In this study,Chinese yam fermented by Saccharomyces boulardii was perfor... Chinese yam(Dioscorea opposita Thunb.),as one of the medicinal and edible homologous plants,is rich in various nutrients and functional factors.In this study,Chinese yam fermented by Saccharomyces boulardii was performed to investigate its bioactive components and metabolic profile.And then,the main bioactive components and biological activities of fermented Chinese yam ethanol extract(FCYE)were evaluated.Results showed that there were 49 up-regulated metabolites and 52 down-regulated metabolites in fermented Chinese yam compared to unfermented Chinese yam.Besides,corresponding metabolic pathways analysis initially revealed that the distribution of bioactive substances was concentrated on alcoholsoluble small molecular substances.Ulteriorly,the total polyphenol content and the total flavonoid content in FCYE were significantly increased,and the corresponding antioxidant and immunomodulatory activities in vitro were also significantly enhanced.Our study provided a new reference for the comprehensive utilization of Chinese yam and laid a theoretical foundation for the development and application of natural probiotic-fermented products. 展开更多
关键词 Chinese yam Saccharomyces boulardii METABOLITES ANTIOXIDANT IMMUNOMODULATION
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Learning Epipolar Line Window Attention for Stereo Image Super-Resolution Reconstruction
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作者 xue li Hongying Zhang +1 位作者 Zixun Ye Xiaoru 《Computers, Materials & Continua》 SCIE EI 2024年第2期2847-2864,共18页
Transformer-based stereo image super-resolution reconstruction(Stereo SR)methods have significantly improved image quality.However,existing methods have deficiencies in paying attention to detailed features and do not... Transformer-based stereo image super-resolution reconstruction(Stereo SR)methods have significantly improved image quality.However,existing methods have deficiencies in paying attention to detailed features and do not consider the offset of pixels along the epipolar lines in complementary views when integrating stereo information.To address these challenges,this paper introduces a novel epipolar line window attention stereo image super-resolution network(EWASSR).For detail feature restoration,we design a feature extractor based on Transformer and convolutional neural network(CNN),which consists of(shifted)window-based self-attention((S)W-MSA)and feature distillation and enhancement blocks(FDEB).This combination effectively solves the problem of global image perception and local feature attention and captures more discriminative high-frequency features of the image.Furthermore,to address the problem of offset of complementary pixels in stereo images,we propose an epipolar line window attention(EWA)mechanism,which divides windows along the epipolar direction to promote efficient matching of shifted pixels,even in pixel smooth areas.More accurate pixel matching can be achieved using adjacent pixels in the window as a reference.Extensive experiments demonstrate that our EWASSR can reconstruct more realistic detailed features.Comparative quantitative results show that in the experimental results of our EWASSR on the Middlebury and Flickr1024 data sets for 2×SR,compared with the recent network,the Peak signal-to-noise ratio(PSNR)increased by 0.37 dB and 0.34 dB,respectively. 展开更多
关键词 Stereo SR epipolar line window attention feature distillation
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Hepatocyte growth factor enhances the ability of dental pulp stem cells to ameliorate atherosclerosis in apolipoprotein E-knockout mice
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作者 Han Duan Ning Tao +8 位作者 lin Lv Kai-Xin Yan Yong-Gang You Zhuang Mao Chang-Yao Wang xue li Jia-Yan Jin Chu-Tse Wu Hua Wang 《World Journal of Stem Cells》 SCIE 2024年第5期575-590,共16页
BACKGROUND Atherosclerosis(AS),a chronic inflammatory disease of blood vessels,is a major contributor to cardiovascular disease.Dental pulp stem cells(DPSCs)are capable of exerting immunomodulatory and anti-inflammato... BACKGROUND Atherosclerosis(AS),a chronic inflammatory disease of blood vessels,is a major contributor to cardiovascular disease.Dental pulp stem cells(DPSCs)are capable of exerting immunomodulatory and anti-inflammatory effects by secreting cytokines and exosomes and are widely used to treat autoimmune and inflam-mation-related diseases.Hepatocyte growth factor(HGF)is a pleiotropic cytokine that plays a key role in many inflammatory and autoimmune diseases.AIM To modify DPSCs with HGF(DPSC-HGF)and evaluate the therapeutic effect of DPSC-HGF on AS using an apolipoprotein E-knockout(ApoE-/-)mouse model and an in vitro cellular model.METHODS ApoE-/-mice were fed with a high-fat diet(HFD)for 12 wk and injected with DPSC-HGF or Ad-Null modified DPSCs(DPSC-Null)through tail vein at weeks 4,7,and 11,respectively,and the therapeutic efficacy and mechanisms were analyzed by histopathology,flow cytometry,lipid and glucose measurements,real-time reverse transcription polymerase chain reaction(RT-PCR),and enzyme-linked immunosorbent assay at the different time points of the experiment.An in vitro inflammatory cell model was established by using RAW264.7 cells and human aortic endothelial cells(HAOECs),and indirect co-cultured with supernatant of DPSC-Null(DPSC-Null-CM)or DPSC-HGF-CM,and the effect and mechanisms were analyzed by flow cytometry,RT-PCR and western blot.Nuclear factor-κB(NF-κB)activators and inhibitors were also used to validate the related signaling pathways.RESULTS DPSC-Null and DPSC-HGF treatments decreased the area of atherosclerotic plaques and reduced the expression of inflammatory factors,and the percentage of macrophages in the aorta,and DPSC-HGF treatment had more pronounced effects.DPSCs treatment had no effect on serum lipoprotein levels.The FACS results showed that DPSCs treatment reduced the percentages of monocytes,neutrophils,and M1 macrophages in the peripheral blood and spleen.DPSC-Null-CM and DPSC-HGF-CM reduced adhesion molecule expression in tumor necrosis factor-αstimulated HAOECs and regulated M1 polarization and inflammatory factor expression in lipopolysaccharide-induced RAW264.7 cells by inhibiting the NF-κB signaling pathway.CONCLUSION This study suggested that DPSC-HGF could more effectively ameliorate AS in ApoE-/-mice on a HFD,and could be of greater value in stem cell-based treatments for AS. 展开更多
关键词 ATHEROSCLEROSIS Apolipoprotein E-knockout mice Cell therapy Dental pulp stem cells Hepatocyte growth factor
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Effects of SARS-CoV-2 infection on incidence and treatment strategies of hepatocellular carcinoma in people with chronic liver disease
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作者 Lung-Yi Mak Matthew Shing Hin Chung +12 位作者 xue li Francisco Tsz Tsun Lai Eric Yuk Fai Wan Celine Sze ling Chui Franco Wing Tak Cheng Esther Wai Yin Chan Ching Lung Cheung Ivan Chi Ho Au Xi Xiong Wai-Kay Seto Man-Fung Yuen Carlos King Ho Wong Ian Chi Kei Wong 《World Journal of Hepatology》 2024年第2期211-228,共18页
BACKGROUND Chronic liver disease(CLD)was associated with adverse clinical outcomes among people with severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)infection.AIM To determine the effects of SARS-CoV-2 infe... BACKGROUND Chronic liver disease(CLD)was associated with adverse clinical outcomes among people with severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)infection.AIM To determine the effects of SARS-CoV-2 infection on the incidence and treatment strategy of hepatocellular carcinoma(HCC)among patients with CLD.METHODS A retrospective,territory-wide cohort of CLD patients was identified from an electronic health database in Hong Kong.Patients with confirmed SARS-CoV-2 infection[coronavirus disease 2019(COVID-19)+CLD]between January 1,2020 and October 25,2022 were identified and matched 1:1 by propensity-score with those without(COVID-19-CLD).Each patient was followed up until death,outcome event,or November 15,2022.Primary outcome was incidence of HCC.Secondary outcomes included all-cause mortality,adverse hepatic outcomes,and different treatment strategies to HCC(curative,non-curative treatment,and palliative care).Analyses were further stratified by acute(within 20 d)and post-acute(21 d or beyond)phases of SARS-CoV-2 infection.Incidence rate ratios(IRRs)were estimated by Poisson regression models.RESULTS Of 193589 CLD patients(>95%non-cirrhotic)in the cohort,55163 patients with COVID-19+CLD and 55163 patients with COVID-19-CLD were included after 1:1 propensity-score matching.Upon 249-d median follow-up,COVID-19+CLD was not associated with increased risk of incident HCC(IRR:1.19,95%CI:0.99-1.42,P=0.06),but higher risks of receiving palliative care for HCC(IRR:1.60,95%CI:1.46-1.75,P<0.001),compared to COVID-19-CLD.In both acute and post-acute phases of infection,COVID-19+CLD were associated with increased risks of allcause mortality(acute:IRR:7.06,95%CI:5.78-8.63,P<0.001;post-acute:IRR:1.24,95%CI:1.14-1.36,P<0.001)and adverse hepatic outcomes(acute:IRR:1.98,95%CI:1.79-2.18,P<0.001;post-acute:IRR:1.24,95%CI:1.13-1.35,P<0.001),compared to COVID-19-CLD.CONCLUSION Although CLD patients with SARS-CoV-2 infection were not associated with increased risk of HCC,they were more likely to receive palliative treatment than those without.The detrimental effects of SARS-CoV-2 infection persisted in post-acute phase. 展开更多
关键词 SARS-CoV-2 infection Chronic liver disease Long COVID Post-COVID-19 syndrome CIRRHOSIS Hepatocellular carcinoma
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PBL联合CBL教学法在实验诊断学住培教学中的应用 被引量:3
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作者 杜雪飞 薛丽 +4 位作者 梁红艳 柳俊年 潘靖 杨春 辛瑜 《中国继续医学教育》 2024年第8期36-39,共4页
目的研究以问题为基础的教学法(problem-based learning,PBL)联合案例教学法(case-based learning,CBL)在住院医师规范化培训(简称住培)医师实验诊断学以系统-器官疾病为中心的教学改革中的应用效果。方法选取2017年6月—2020年6月哈尔... 目的研究以问题为基础的教学法(problem-based learning,PBL)联合案例教学法(case-based learning,CBL)在住院医师规范化培训(简称住培)医师实验诊断学以系统-器官疾病为中心的教学改革中的应用效果。方法选取2017年6月—2020年6月哈尔滨医科大学附属第四医院检验科内设置的医学检验专业住培基地的住培医师60名为研究对象,随机选取2017~2018年度住培医师30名纳入对照组,采用普通五年制教材传统教学法。将2019~2020年度住培医师30名纳入观察组,采用PBL联合CBL教学法。比较2组住培医师考试成绩、学习效果及教学满意度。结果观察组的优良率为100%,高于对照组的80.00%,差异有统计学意义(P<0.05)。观察组住培医师学习主动性、思辨力、团队协作、有效沟通4个维度的得分均高于对照组,差异有统计学意义(P<0.05)。观察组住培医师的总满意度为100%,高于对照组的73.33%,差异有统计学意义(P<0.05)。结论PBL联合CBL教学法在住培医师实验诊断学以系统-器官疾病为中心的教学改革中的应用效果较好,提高了住培医师成绩,锻炼了住培医师解决临床问题的综合能力。 展开更多
关键词 PBL CBL 住培医师 系统-器官疾病 实验诊断学 教学改革
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High-quality haplotype-resolved genome assembly of cultivated octoploid strawberry 被引量:2
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作者 Jianxin Mao Yan Wang +8 位作者 Baotian Wang Jiqi li Chao Zhang Wenshuo Zhang xue li Jie li Junxiang Zhang He li Zhihong Zhang 《Horticulture Research》 SCIE CSCD 2023年第1期299-310,共12页
Cultivated strawberry(Fragaria×ananassa),a perennial herb belonging to the family Rosaceae,is a complex octoploid with high heterozygosity at most loci.However,there is no research on the haplotype of the octoplo... Cultivated strawberry(Fragaria×ananassa),a perennial herb belonging to the family Rosaceae,is a complex octoploid with high heterozygosity at most loci.However,there is no research on the haplotype of the octoploid strawberry genome.Here we aimed to obtain a high-quality genome of the cultivated strawberry cultivar,“Yanli”,using single molecule real-time sequencing and high-throughput chromosome conformation capture technology.The“Yanli”genome was 823 Mb in size,with a long terminal repeat assembly index of 14.99.The genome was phased into two haplotypes,Hap1(825 Mb with contig N50 of 26.70 Mb)and Hap2(808 Mb with contig N50 of 27.51 Mb).Using the combination of Hap1 and Hap2,we obtained for the first time a haplotype-resolved genome with 56 chromosomes for the cultivated octoploid strawberry.We identified a∼10 Mb inversion and translocation on chromosome 2-1.104957 and 102356 protein-coding genes were annotated in Hap1 and Hap2,respectively.Analysis of the genes related to the anthocyanin biosynthesis pathway revealed the structural diversity and complexity in the expression of the alleles in the octoploid F.×ananassa genome.In summary,we obtained a high-quality haplotype-resolved genome assembly of F.×ananassa,which will provide the foundation for investigating gene function and evolution of the genome of cultivated octoploid strawberry. 展开更多
关键词 STRAW cultivar RESOLVED
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Review on microbial metabolomics of probiotics and pathogens:Methodologies and applications 被引量:1
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作者 XIN MENG xue li +3 位作者 liANRONG YANG RUI YIN LEHUI QI QI GUO 《BIOCELL》 SCIE 2023年第1期91-107,共17页
In recent years,microbial metabolomics,a new field that has attracted wide attention,provides a map of metabolic pathways and clarifies the interaction mechanism between microorganisms and hosts.Many microorganisms ar... In recent years,microbial metabolomics,a new field that has attracted wide attention,provides a map of metabolic pathways and clarifies the interaction mechanism between microorganisms and hosts.Many microorganisms are found in the human intestine,oral cavity,vagina,etc.Probiotics could maintain the good health of the host,while pathogens and an imbalance of bacterial flora lead to a series of diseases of the body and mind.Metabolomics is a science for qualitative and quantitative analysis of all metabolites in an organism or biological system,which could provide key information to understand the related metabolic pathways and associated changes.This approach analyzes the final products of cellular regulatory processes,the level of which can be regarded as the ultimate response of the biological system to genetic or environmental changes.Microbial metabolomics has been widely used in different research fields,such as microbial phenotypic classification,mutant screening,metabolic pathways,microbial metabolic engineering,fermentation engineering monitoring and optimization,microbial environmental pollution,and so on.However,there are only a few reviews on microbial metabolomics of probiotics and pathogens.This review summarizes the main methodologies,including sample preparation,identification of metabolites,data processing,and analysis.Recent applications in microbial metabolomics of probiotics and pathogens are also described.This paper first summarized the research progress and application of microbial metabolomics from two aspects:probiotics and pathogenic bacteria.Probiotics and pathogenic bacteria do not exist independently most of the time;hence,these were reviewed in the research field of coexistence of probiotics and pathogenic bacteria,which was subdivided into important microbial research fields closely related to human health,including the human gut,oral cavity,food,and nutrition-related microorganisms.Then,the main problems and trends associated with microbial metabolomics are discussed. 展开更多
关键词 PROBIOTICS PATHOGENS Microbial metabolomics METHODOLOGY APPLICATION
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Ellagic acid ameliorates cisplatin-induced acute kidney injury by regulating inflammation and SIRT6/TNF-α signaling 被引量:1
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作者 Yuqi Gao Kezheng Peng +7 位作者 Yida Wang Yannan Guo Chenye Zeng Rui Hua Qingfei liu xue li Ying Qiu Zhao Wang 《Food Science and Human Wellness》 SCIE CSCD 2023年第6期2232-2241,共10页
De spite cisplatin has been widely used in the treatment of various cancers,the noteworthy nephrotoxicity greatly constrained its clinical value.For this reason,finding novel targeted therapies to attenuate the nephro... De spite cisplatin has been widely used in the treatment of various cancers,the noteworthy nephrotoxicity greatly constrained its clinical value.For this reason,finding novel targeted therapies to attenuate the nephrotoxicity of cisplatin should be pretty significant.Our previous study found that histone deacetylase sirtuin 6(SIRT6)could be an ideal target for the treatment of cisplatin-induced acute kidney injury.In this study,we explored the protective effects of ellagic acid,a natural polyphenol compound that activates SIRT6,on cisplatin-induced nephrotoxicity.Pre-treatment of ellagic acid attenuated cytotoxicity of cisplatin in primary renal cells and TCMK-1 cells.Moreover,ellagic acid ameliorated renal dysfunction,apoptosis and fibrosis induced by cisplatin in mice.Furthermore,ellagic acid reduced nephrotoxicity-associated inflammatory factor interleukin(IL)-1βand IL-6 expression both in vitro and in vivo.Mechanistically,ellagic acid reversed cisplatin-reduced SIRT6 expression and diminished cisplatin-induced tumor necrosis factor(TNF)-αexpression.And SIRT6 knockdown abrogated the protective effects of ellagic acid on cisplatin-induced cell apoptosis,indicating the renal-protective effects of ellagic acid are mainly dependent on ellagic acid-mediated SIRT6 activation.Our results provide preclinical rationale for using ellagic acid as a feasible and promising agent to ameliorate cisplatin-induced acute kidney injury,and support ellagic acid as a potential adjunctive therapy for future cancer treatment. 展开更多
关键词 Ellagic acid NEPHROTOXICITY CISPLATIN SIRT6 TNF-Α
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Identification of clayey altered ophiolite in the Nujiang tectonic belt and new understanding of its impacts on engineering stability 被引量:1
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作者 Jin-qiu li Yong-shuang Zhang +2 位作者 xue li San-shao Ren li-na Ran 《China Geology》 CAS CSCD 2023年第4期756-758,共3页
1. Objectives Ophiolites from the oceanic crust are important indicators for identifying tectonic suture zones. Recently, a continuous ophiolite belt was found near the Guola Mountain in the Nujiang tectonic belt. Due... 1. Objectives Ophiolites from the oceanic crust are important indicators for identifying tectonic suture zones. Recently, a continuous ophiolite belt was found near the Guola Mountain in the Nujiang tectonic belt. Due to intensive hydrothermal alteration during tectonic evolution, clayey altered ophiolite with special engineering geological characteristics was formed, which has an extremely adverse impact on engineering stability. However, the adverse properties of clayey altered ophiolite are still not well understood in engineering practices(Zhang YS, et al., 2011). 展开更多
关键词 TECTONIC BELT OPHIOLITE
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“一带一路”倡议十周年:发展、挑战与建议 被引量:2
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作者 薛力 李少康 《克拉玛依学刊》 2024年第2期33-49,共17页
自2013年以来“,一带一路”从愿景到行动,从夯基垒台、立柱架梁到落地生根、深入发展,取得显著成就,赢得了国际社会的高度关注和广泛支持,开拓出一条贯通沿线国家、区域共同繁荣的共赢之路。本文首先梳理了“一带一路”倡议的起源及其... 自2013年以来“,一带一路”从愿景到行动,从夯基垒台、立柱架梁到落地生根、深入发展,取得显著成就,赢得了国际社会的高度关注和广泛支持,开拓出一条贯通沿线国家、区域共同繁荣的共赢之路。本文首先梳理了“一带一路”倡议的起源及其发展的三阶段,其次阐释了“一带一路”倡议的理念,指出“一带一路”是当前中国对外经济关系的顶层设计,并分析了“一带一路”倡议在中国外交宏观、中观和微观三个层面的体现。接着概括了“一带一路”的主要成就与挑战。成就涵盖政治、经济、人文、生态等多个领域。挑战主要来自美西方国家、澳印日等国、东道国以及中国自身内部四个方面。最后,扼要分析了新阶段“三大倡议”与“一带一路”之间的关系,并针对面临的挑战提出了相应的建议。 展开更多
关键词 “一带一路” “三大倡议” 中国外交
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以系统-器官疾病为中心的实验诊断学教学体系改革的调研
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作者 杜雪飞 梁红艳 +4 位作者 薛丽 柳俊年 潘靖 杨春 辛瑜 《中国继续医学教育》 2024年第17期5-8,共4页
目的 通过调研对传统的《实验诊断学》教学体系和教学法改革,探讨以系统-器官疾病为中心的内容设置以及联合以问题为基础的学习(problem-based learning,PBL)和以案例为基础的学习(case-based learning,CBL)的必要性。方法选择2021年9月... 目的 通过调研对传统的《实验诊断学》教学体系和教学法改革,探讨以系统-器官疾病为中心的内容设置以及联合以问题为基础的学习(problem-based learning,PBL)和以案例为基础的学习(case-based learning,CBL)的必要性。方法选择2021年9月-2022年9月在哈尔滨医科大学附属第四医院见习的五年制临床医学本科生109人和检验科住培医师12人为研究对象,发放自制调查问卷。问卷涉及实验诊断学理论课和实验课课程内容安排、教学方式和课程发展等9个问题。结果 95.87%(116/121)被调研者认为有必要将实验诊断学教学改为以系统-器官疾病为中心的教学体系。90.91%(110/121)以上被调研者认为有必要引入PBL联合CBL教学法。更多住培医师希望课程加强实践操作、临床思维培养和检验新知识的介绍,高年级本科生希望加强临床思维的培养,而低年级本科生则更重视基础理论的学习。除了传统的课上讲授外,被调研者更愿意选择微课教学,住培医师相较于本科生更倾向于分组病例讨论模式。结论 建立以系统-器官疾病为中心的教学体系是《实验诊断学》课程教学发展的趋势。PBL联合CBL教学法、分组讨论、互动教学有利于调动学生学习的积极性,能够引导学生主动获取知识、解决临床实际问题,帮助医学生快速适应临床实践。 展开更多
关键词 实验诊断学 教学体系 改革 系统-器官疾病 PBL CBL
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EGFR siRNA序列的筛选及其对HepG2细胞活性的影响
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作者 许楠 杨旭东 +3 位作者 薛丽 宁启兰 王慧莲 耿燕 《分子诊断与治疗杂志》 2024年第5期935-939,944,共6页
目的构建EGFR shRNA重组真核表达载体,并筛选抑制效果最好的EGFR shRNA序列。方法应用在线工具设计人EGFR siRNA序列,采用限制性内切酶BamHI和HindIII切割真核表达质粒pcDNA3.1(+),构建三种人EGFR的siRNA干扰序列载体(psilencer 4.1-CMV... 目的构建EGFR shRNA重组真核表达载体,并筛选抑制效果最好的EGFR shRNA序列。方法应用在线工具设计人EGFR siRNA序列,采用限制性内切酶BamHI和HindIII切割真核表达质粒pcDNA3.1(+),构建三种人EGFR的siRNA干扰序列载体(psilencer 4.1-CMV neo-EGFR siRNA)。将重组质粒载体转化大肠杆菌DH5α感受态并筛选阳性克隆,通过DNA测序鉴定重组质粒。应用脂质体lipo2000将三种人EGFR siRNA干扰序列载体转染到HepG2细胞,通过荧光显微镜观察转染效率,实时定量PCR检测EGFR mRNA表达水平,MTT法检测细胞活性。结果Psilencer 4.1-CMV neo-EGFR siRNA重组质粒被成功克隆。EGFR shRNA-1、EGFR shRNA-2和EGFR shRNA-3敲低EGFR mRNA的效率分别是80%、60%和70%以上。shRNA-2和shRNA-3使细胞活性分别下降50%(P<0.05),但shRNA-1对细胞活性无明显影响(P>0.05)。结论重组psilencer 4.1-CMV neo-EGFR siRNA质粒可下调肝癌细胞株EGFR表达水平和细胞活性。EGFR shRNA-3较EGFR shRNA-1和shRNA-2对HepG2细胞的抑制作用更显著。 展开更多
关键词 基因治疗 肝癌 HEPG2 EGFR 小干扰RNA
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MXene-based electrochemical (bio) sensors for sustainable applications: Roadmap for future advanced materials
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作者 Qing Wang Ning Han +7 位作者 Zhangfeng Shen xue li Zhijie Chen Yue Cao Weimeng Si Fagang Wang Bing-Jie Ni Vijay Kumar Thakur 《Nano Materials Science》 EI CAS CSCD 2023年第1期39-52,共14页
MXenes are emerging transition metal carbides and nitrides-based 2D conductive materials.They have found wide applications in sensors due to their excellent valuable properties.This paper reviews the recent research s... MXenes are emerging transition metal carbides and nitrides-based 2D conductive materials.They have found wide applications in sensors due to their excellent valuable properties.This paper reviews the recent research status of MXene-based electrochemical(bio)sensors for detecting biomarkers,pesticides,and other aspects.The first part of this paper introduced the synthesis strategy and the effect of surface modification on various prop-erties of MXenes.The second part of this paper discussed the application of MXenes as electrode modifiers for detecting pesticides,environmental pollutants,and biomarkers such as glucose,hydrogen peroxide,etc.Hope this review will inspire more efforts toward research on MXene-based sensors to meet the growing requirements. 展开更多
关键词 MXenes Electrochemical sensors Biomarkers PESTICIDES
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A splice site mutation in the FvePHP gene is associated with leaf development and f lowering time in woodland strawberry
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作者 Baotian Wang Weijia li +5 位作者 Kexin Xu Yingying Lei Di Zhao xue li Junxiang Zhang Zhihong Zhang 《Horticulture Research》 SCIE CSCD 2023年第1期274-287,共14页
Leaves and f lowers are crucial for the growth and development of higher plants.In this study we identified a mutant with narrow leaf lets and early f lowering(nlef)in an ethyl methanesulfonate-mutagenized population ... Leaves and f lowers are crucial for the growth and development of higher plants.In this study we identified a mutant with narrow leaf lets and early f lowering(nlef)in an ethyl methanesulfonate-mutagenized population of woodland strawberry(Fragaria vesca)and aimed to identify the candidate gene.Genetic analysis revealed that a single recessive gene,nlef,controlled the mutant phenotype.We found that FvH4_1g25470,which encodes a putative DNA polymeraseαwith a polymerase and histidinol phosphatase domain(PHP),might be the candidate gene,using bulked segregant analysis with whole-genome sequencing,molecular markers,and cloning analyses.A splice donor site mutation(C to T)at the 5-end of the second intron led to an erroneous splice event that reduced the expression level of the full-length transcript of FvePHP in mutant plants.FvePHP was localized in the nucleus and was highly expressed in leaves.Silencing of FvePHP using the virus-induced gene silencing method resulted in partial developmental defects in strawberry leaves.Overexpression of the FvePHP gene can largely restore the mutant phenotype.The expression levels of FveSEP1,FveSEP3,FveAP1,FveFUL,and FveFT were higher in the mutants than those in‘Yellow Wonder’plants,probably contributing to the early f lowering phenotype in mutant plants.Our results indicate that mutation in FvePHP is associated with multiple developmental pathways.These results aid in understanding the role of DNA polymerase in strawberry development. 展开更多
关键词 STRAW PHP NARROW
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“一带一路”与东南亚——访云南大学国际关系研究院·区域国别研究院院长、教授卢光盛
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作者 薛力 《克拉玛依学刊》 2024年第5期33-35,F0003,共4页
卢光盛教授是研究东南亚问题的代表性学者之一,他认为“一带一路”倡议的提出,展示了中国在走向全球大国过程中的综合性考量;“一带一路”倡议提高了中国在全世界的影响力,与沿线国家的合作取得了重要进展;东南亚方向是“一带一路”合... 卢光盛教授是研究东南亚问题的代表性学者之一,他认为“一带一路”倡议的提出,展示了中国在走向全球大国过程中的综合性考量;“一带一路”倡议提高了中国在全世界的影响力,与沿线国家的合作取得了重要进展;东南亚方向是“一带一路”合作最顺利、评价最积极的方向之一,基础设施方面成效突出,雅万高铁、中老铁路是范例;云南有三个定位,现在的基本考虑是以昆明为出发点,构建一条不同于西部的陆海新通道“面向印度洋的陆海大通道”;在国际关系研究与区域国别研究中,云南大学形成了自身特色,不求做“全能冠军”而求做“单项冠军”,这突出表现在对缅甸研究方面。 展开更多
关键词 “一带一路” 东南亚 印度洋 通道 缅甸研究
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“一带一路”与中国外交——访北京大学区域与国别研究院副院长、北京大学国际关系学院教授翟崑
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作者 薛力 《克拉玛依学刊》 2024年第5期39-44,F0003,共7页
中国治理天下一直奉行“长治久安模式”,“一带一路”倡议是习近平主席统筹内外的抓手,是物质性与精神性的公共产品。中国的大国外交新模式因此“可能”呼之欲出。东南亚国家对“一带一路”倡议的评价是多元的。对“一带一路”倡议的最... 中国治理天下一直奉行“长治久安模式”,“一带一路”倡议是习近平主席统筹内外的抓手,是物质性与精神性的公共产品。中国的大国外交新模式因此“可能”呼之欲出。东南亚国家对“一带一路”倡议的评价是多元的。对“一带一路”倡议的最大挑战是美国把“一带一路”倡议安全化,这明显影响到许多国家参与的积极性。下一步建议是“唯变所适”和“微观化”:适当降低“一带一路”的目标,提出“一带一路”项目的标准;放宽“一带一路”建设评价标准,以便“一带一路”建设获得更大成就;从更微观的点切入,帮助中国企业了解中国和东道国的相关政策。做一个“抱团出海2.0版”,其核心是国企带着民企一起出海。高校做政策研究具有比较优势,未来高校智库将有更大作为。 展开更多
关键词 “一带一路” 抓手 公共产品 抱团出海2.0版 高校智库
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“一带一路”与外经贸——访中国世界贸易组织研究会副会长、商务部研究院原院长、研究员霍建国
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作者 薛力 《克拉玛依学刊》 2024年第4期15-19,共5页
“一带一路”倡议在基础设施建设和贸易投资领域都取得了长足发展,特别是在西亚与东南亚地区促进了东道国的就业与发展,中国与沿线国家的贸易额占比达到31%,超过与欧美日的30%。以中欧班列为代表的陆上贸易发展很快,大有潜力。发展中国... “一带一路”倡议在基础设施建设和贸易投资领域都取得了长足发展,特别是在西亚与东南亚地区促进了东道国的就业与发展,中国与沿线国家的贸易额占比达到31%,超过与欧美日的30%。以中欧班列为代表的陆上贸易发展很快,大有潜力。发展中国家对“一带一路”倡议的评价整体上优于发达国家。虽然近些年中国的投资增长较快,但发展中国家的债务60%-70%来自西方国家的政府与金融机构。“一带一路”倡议的挑战主要来自美西方,有些项目被美国搅黄。下一步共建“一带一路”要注意几点:强化环保意识与项目的公开性;贸易投资要增加比例和速度,基础设施建设要量力而行;国企在重大项目和基础设施建设上发挥更大作用,民企在贸易投资上发挥更大作用。 展开更多
关键词 “一带一路” 经贸 投资 发展中国家 民企
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“一带一路”与南亚——访复旦大学国际问题研究院研究员林民旺
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作者 薛力 《克拉玛依学刊》 2024年第5期36-38,F0003,共4页
林民旺教授是中国研究南亚,特别是印度问题的代表性学者之一。他认为,“一带一路”倡议是“西进战略”的延续,具有必然性。十年来,中国在南亚的影响力上升得特别快,原因在于中国真心帮助南亚国家发展,这突出表现在道路、电力等方面;但... 林民旺教授是中国研究南亚,特别是印度问题的代表性学者之一。他认为,“一带一路”倡议是“西进战略”的延续,具有必然性。十年来,中国在南亚的影响力上升得特别快,原因在于中国真心帮助南亚国家发展,这突出表现在道路、电力等方面;但中国也要注意,南亚国家具有的家族政治特点需要妥善应对。中国与印度的合作,既要务实,又要避免因帮助印度而损害自身长远利益。 展开更多
关键词 “一带一路” 南亚 基础设施 印度 务实合作
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“一带一路”与可持续发展——访谈上海国际问题研究院副院长李开盛
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作者 薛力 《克拉玛依学刊》 2024年第4期11-14,共4页
“一带一路”倡议是中国针对周边国家和发展中国家外交的顶层设计。它统筹发展与外交,是民族复兴的当代实践符号,对中国外交有“以小国带大国”的效果。“一带一路”倡议帮助发展中国家在基础设施上提前实现梦想,并激发其他大国参与发... “一带一路”倡议是中国针对周边国家和发展中国家外交的顶层设计。它统筹发展与外交,是民族复兴的当代实践符号,对中国外交有“以小国带大国”的效果。“一带一路”倡议帮助发展中国家在基础设施上提前实现梦想,并激发其他大国参与发展中国家基础设施建设的积极性。在评价“一带一路”项目时,要关注“沉默的大多数”,即受益者不如受损者的声音大。李开盛认为共建“一带一路”面临的主要挑战是可持续性问题,为此要吸引其他参与者,特别是强化第三方合作。建立“国企带动民企”的机制也应该受到关注;要培育中国的NGO,并发挥外国NGO的作用;智库可以通过专门研究与人员交流两方面发挥作用。 展开更多
关键词 “一带一路” 外交顶层设计 基础设施 第三方市场合作 “国企带动民企”
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