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Diagnostic accuracy of fiberoptic ductoscopy plus in vivo iodine staining for intraductal proliferative lesions

Chinese Medical Journal 2013年第16期126卷 3124-3129页

作者： feng xin-zhi SONG Ying-hua ZHANG feng-xia JIANG Chuan-wu MEI Hong ZHAO Bin Shandong University Shandong Provincial Medical Imaging Institute Jinan Shandong 250021 China Department of Respiratory Medicine Shandong ProvincialQianfoshan Hospital Jinan Shandong 250014 China Department of Radiology Hiser Hospital of Qingdao QingdaoShandong 266033 China

Background lodine staining during endoscopy has been successfully used to detect early carcinomatous and precancerous lesions in the esophagus,cervix,and oral *** objective of this study was to determine the diagnostic accuracy of fiberoptic ductoscopy （FDS） plus in vivo iodine staining for intraductal proliferative lesions of the *** We performed periodic acid-Schiff （PAS） and in vitro iodine staining on 52 and 64 specimens of benign mammary hyperplasia,respectively,and 57 and 53 specimens of ductal carcinoma in situ （DCIS）,***,FDS was performed on 177 recurrent nipple discharge patients who were randomly divided into two *** group was iodine-staining group in which 92 patients were randomly selected to undergo iodine staining during FDS,and the remaining 85 were assigned to the control *** specimens of suspicious lesions were obtained and subjected to histopathological *** Following PAS staining,benign mammary hyperplasia lesions were positively stained,while negligible PAS positivity was observed in the DCIS lesions （P ＜0.05）.Following in vitro iodine staining,benign mammary hyperplasia specimens appeared dark brown,whereas DCIS samples appeared significantly lighter or *** with the pathological examination results,FDS with iodine staining showed an agreement rate in the diagnosis of ductal intraepithelial neoplasia （DIN）,sensitivity,specificity,positive likelihood ratio,negative likelihood ratio,and Youden index of 97.82％,98.83％,83.33％,5.93,0.014,and 0.8216,respectively; the corresponding values for FDS without iodine staining were 88.24％,89.16％,50.00％,1.78,0.217,and 0.3916,*** FDS with iodine staining was superior to conventional FDS for the diagnosis of DIN and is valuable for breast cancer prevention.

关键词： carcinoma, ductal breast, endoscopes sensitivity and specificity

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半固体培养法制备非洲猪瘟病毒pA104R蛋白的单克隆抗体

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江苏农业学报 2024年第4期40卷 682-689页

作者：刘蓓蓓韦艳娜陈蓉谢星倪博郝飞张珍珍白昀袁厅冯志新江苏省农业科学院兽医研究所/农业农村部兽用生物制品工程重点实验室江苏南京210014 兽用生物制品<泰州>国泰技术创新中心江苏泰州225300

为了快速、高效制备非洲猪瘟病毒(ASFV)单克隆抗体,本研究通过大肠杆菌系统表达并纯化了ASFV重组蛋白pA104R。以ASFV重组蛋白pA104R为抗原,分别比较了CpG ODN联合氢氧化铝佐剂和常规弗氏佐剂两种免疫策略,并重点比较半固体培养法和常规... 详细信息

为了快速、高效制备非洲猪瘟病毒(ASFV)单克隆抗体,本研究通过大肠杆菌系统表达并纯化了ASFV重组蛋白pA104R。以ASFV重组蛋白pA104R为抗原,分别比较了CpG ODN联合氢氧化铝佐剂和常规弗氏佐剂两种免疫策略,并重点比较半固体培养法和常规有限稀释法来制备ASFV pA104R单克隆抗体的效率。结果显示,本研究获得了相对分子质量为3.5×104的ASFV重组可溶性蛋白pA104R,通过其与CpG ODN联合氢氧化铝佐剂免疫小鼠,在第21 d即可达到融合要求,本试验方法(重组蛋白pA104R与CpG ODN联合氢氧化铝佐剂免疫)较重组蛋白pA104R与常规弗氏佐剂免疫节省14 d时间。通过半固体培养法筛选单克隆的试验周期比有限稀释法缩短28 d,并减少了亚克隆的工作量。半固体培养法获得5株阳性杂交瘤细胞,挑选效价较高的3株(9A4、9H6、11F5)进行鉴定,重链均为IgG,轻链均为KAPPA。纯化后的3株单克隆抗体针对pA104蛋白和全病毒蛋白质的效价分别达1∶160000~1∶320000和1∶200~1∶400。本研究优选了CpG ODN联合氢氧化铝佐剂结合半固体培养法筛选pA104R的单克隆抗体,为单克隆抗体制备提供了快速高效的新策略。

关键词：非洲猪瘟病毒 pA104蛋白单克隆抗体半固体培养法

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Data-driven Wasserstein distributionally robust chance-constrained optimization for crude oil scheduling under uncertainty

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Chinese Journal of Chemical Engineering 2024年第5期69卷 152-166页

作者： xin Dai Liang Zhao Renchu He Wenli Du Weimin Zhong zhi Li feng Qian Key Laboratory of Smart Manufacturing in Energy Chemical Process Ministry of EducationEast China University of Science and TechnologyShanghai 200237China Engineering Research Center of Process System Engineering Ministry of EducationEast China University of Science and TechnologyShanghai 200237China

Crude oil scheduling optimization is an effective method to enhance the economic benefits of oil *** uncertainties,including uncertain demands of crude distillation units(CDUs),might make the production plans made by the traditional deterministic optimization models infeasible.A data-driven Wasserstein distributionally robust chance-constrained(WDRCC)optimization approach is proposed in this paper to deal with demand uncertainty in crude oil ***,a new deterministic crude oil scheduling optimization model is developed as the basis of this *** Wasserstein distance is then used to build ambiguity sets from historical data to describe the possible realizations of probability distributions of uncertain demands.A cross-validation method is advanced to choose suitable radii for these ambiguity *** deterministic model is reformulated as a WDRCC optimization model for crude oil scheduling to guarantee the demand constraints hold with a desired high probability even in the worst situation in ambiguity *** proposed WDRCC model is transferred into an equivalent conditional value-at-risk representation and further derived as a mixed-integer nonlinear programming *** case studies from a real-world refinery are conducted to show the effectiveness of the proposed ***-of-sample tests demonstrate that the solution of the WDRCC model is more robust than those of the deterministic model and the chance-constrained model.

关键词： Distributions Model Optimization Crude oil scheduling Wasserstein distance Distributionally robust chance constraints

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Sodium butyrate attenuates high-fat diet-induced steatohepatitis in mice by improving gut microbiota and gastrointestinal barrier

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World Journal of Gastroenterology 2017年第1期23卷 60-75页

作者： Da Zhou Qin Pan feng-zhi xin Rui-Nan Zhang Chong-xin He Guang-Yu Chen Chang Liu Yuan-Wen Chen Jian-Gao Fan Department of Gastroenterology Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine Clinical Epidemiology Center Shanghai Jiaotong University School of Medicine Department of Medical Microbiology and Parasito-logy Institutes of Medical SciencesShanghai Jiao Tong University School of Medicine

AIM To investigate whether gut microbiota metabolite sodium butyrate (NaB) is an effective substance for attenuating non-alcoholic fatty liver disease (NAFLD) and the internal mechanisms. METHODS Male C57BL/6J mice were divided into three groups, normal control were fed standard chow and model group were fed a high-fat diet (HFD) for 16 wk, the intervention group were fed HFD for 16 wk and treated with NaB for 8 wk. Gut microbiota from each group were detected at baseline and at 16 wk, liver histology were evaluated and gastrointestinal barrier indicator such as zonula occluden-1 (ZO-1) were detected by immunohistochemistry and realtime-PCR, further serum or liver endotoxin were determined by ELISA and inflammation-or metabolism-associated genes were quantified by real-time PCR. RESULTS NaB corrected the HFD-induced gut microbiota imbalance in mice, while it considerably elevated the abundances of the beneficial bacteria Christensenellaceae, Blautia and Lactobacillus. These bacteria can produce butyric acid in what seems like a virtuous circle. And butyrate restored HFD induced intestinal mucosa damage, increased the expression of ZO-1 in small intestine, further decreased the levels of gut endotoxin in serum and liver compared with HF group. Endotoxin-associated genes such as TLR4 and Myd88, pro-inflammation genes such as MCP-1, TNF-alpha, IL-1, IL-2, IL-6 and IFN-gamma in liver or epididymal fat were obviously downregulated after NaB intervention. Liver inflammation and fat accumulation were ameliorated, the levels of TG and cholesterol in liver were decreased after NaB intervention, NAS score was significantly decreased, metabolic indices such as FBG and HOMA-IR and liver function indicators ALT and AST were improved compared with HF group. CONCLUSION NaB may restore the dysbiosis of gut microbiota to attenuate steatohepatitis, which is suggested to be a potential gut microbiota modulator and therapeutic substance for NAFLD.

关键词： Non-alcoholic fatty liver disease Sodium butyrate Gut microbiota Gastrointestinal barrier Endotoxin

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Folic acid attenuates high-fat diet-induced steatohepatitis via deacetylase SIRT1-dependent restoration of PPARα

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World Journal of Gastroenterology 2020年第18期26卷 2203-2220页

作者： feng-zhi xin Ze-Hua Zhao Rui-Nan Zhang Qin Pan Zi-Zhen Gong Chao Sun Jian-Gao Fan Center for Fatty Liver Department of GastroenterologyXinhua Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai 200092China Shanghai Key Lab of Pediatric Gastroenterology and Nutrition Shanghai 200092China Shanghai Institute for Pediatric Research Shanghai Jiao Tong University School of MedicineShanghai 200092China Department of Pediatric Surgery Xinhua HospitalShanghai Jiao Tong University School of MedicineShanghai 200092China

BACKGROUND Folic acid has been shown to improve non-alcoholic steatohepatitis(NASH),but its roles in hepatic lipid metabolism,hepatic one-carbon metabolism,and gut microbiota are still *** To demonstrate the role of folic acid in lipid metabolism and gut microbiota in *** Twenty-four Sprague-Dawley rats were assigned into three groups:Chow diet,high-fat diet(HFD),and HFD with folic acid *** the end of 16 wk,the liver histology,the expression of hepatic genes related to lipid metabolism,one-carbon metabolism,and gut microbiota structure analysis of fecal samples based on 16 S r RNA sequencing were measured to evaluate the effect of folic *** acid-exposed Huh7 cell line was used to evaluate the role of folic acid in hepatic lipid *** Folic acid treatment attenuated steatosis,lobular inflammation,and hepatocellular ballooning in rats with HFD-induced *** related to lipid de novo lipogenesis,β-oxidation,and lipid uptake were improvedin HFD-fed folic acid-treated ***,peroxisome proliferator-activated receptor alpha(PPARα)and silence information regulation factor 1(SIRT1)were restored by folic acid in HFD-fed rats and palmitic acid-exposed Huh7 cell *** restoration of PPARαby folic acid was blocked after transfection with SIRT1 si RNA in the Huh7 cell ***,folic acid administration ameliorated depleted hepatic one-carbon metabolism and restored the diversity of the gut microbiota in rats with HFD-induced *** Folic acid improves hepatic lipid metabolism by upregulating PPARαlevels via a SIRT1-dependent mechanism and restores hepatic one-carbon metabolism and diversity of gut microbiota,thereby attenuating HFD-induced NASH in rats.

关键词： Nonalcoholic fatty liver disease Folic acid Gut microbiota PPARα SIRT1

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Microstructures and mechanical properties of a commercial Mg-Al-Zn-Mn alloy with various hot-extrusion processes

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Rare Metals 2024年第3期43卷 1329-1336页

作者： He Ma Fan-zhi Meng Qiang Yang Ze-feng Xie Yuan-Ding Huang xin Qiu State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022China School of Materials Science and Engineering Changchun University of Science and TechnologyChangchun130022China MagIC-Magnesium Innovation Center Helmholtz-Zentrum Geesthacht21502GeesthachtGermany Engineering Research Center of Optoelectronic Functional Materials Ministry of EducationChangchun University of Science and TechnologyChangchun130022China

Mg-Al-Zn-Mn(AZ)system alloys have become widely used due to their good castability,excellent formability and outstanding corrosion resistance[1-6].However,their strength is still much lower than that of traditional Mg... 详细信息

关键词： alloys alloy corrosion

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Electrical characteristics of a fractional-order 3×n Fan network

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Communications in Theoretical Physics 2024年第4期76卷 176-187页

作者： zhi-Zhong Tan xin Wang Department of Physics Nantong UniversityNantong 226019China

In this article a new achievement of fractional-order 3×n Fan networks is *** the first step,the RT-I method is used to derive the general formulae of the equivalent impedance of fractional-order 3×n Fan *** the second part,the effects of five system parameters(L,C,n,α and β)on amplitude-frequency and phase-frequency characteristics are *** the same time,the amplitude-frequency and phase-frequency characteristics of the fractional order 3×n Fan network are revealed by Matlab *** work has important theoretical and practical significance for resistor network models in the field of natural science and engineering technology.

关键词： fractional-order circuit amplitude-frequency characteristics phase-frequency characteristics RT-V theory

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Trimethylamine N-oxide attenuates high-fat high-cholesterol dietinduced steatohepatitis by reducing hepatic cholesterol overload in rats

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World Journal of Gastroenterology 2019年第20期25卷 2450-2462页

作者： Ze-Hua Zhao feng-zhi xin Da Zhou Ya-Qian Xue Xiao-Lin Liu Rui-Xu Yang Qin Pan Jian-Gao Fan Center for Fatty Liver Department of GastroenterologyXinhua Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai 200092China CAS Key Laboratory of Nutrition Metabolism and Food SafetyShanghai Institute of Nutrition and HealthShanghai Institutes for Biological SciencesUniversity of Chinese Academy of SciencesChinese Academy of SciencesShanghai 200031China Shanghai Key Lab of Pediatric Gastroenterology and Nutrition Shanghai 200092China

BACKGROUND Trimethylamine N-oxide (TMAO) has been shown to be involved in cardiovascular disease (CVD). However, its role in nonalcoholic steatohepatitis (NASH) is unknown. AIM To determine the effect of TMAO on the progression of NASH. METHODS A rat model was induced by 16-wk high-fat high-cholesterol (HFHC) diet feeding and TMAO was administrated by daily oral gavage for 8 wk. RESULTS Oral TMAO intervention attenuated HFHC diet-induced steatohepatitis in rats. Histological evaluation showed that TMAO treatment significantly alleviated lobular inflammation and hepatocyte ballooning in the livers of rats fed a HFHC diet. Serum levels of alanine aminotransferase and aspartate aminotransferase were also decreased by TMAO treatment. Moreover, hepatic endoplasmic reticulum (ER) stress and cell death were mitigated in HFHC diet-fed TMAOtreated rats. Hepatic and serum levels of cholesterol were both decreased by TMAO treatment in rats fed a HFHC diet. Furthermore, the expression levels of intestinal cholesterol transporters were detected. Interestingly, cholesterol influxrelated Niemann-Pick C1-like 1 was downregulated and cholesterol efflux-related ABCG5/8 were upregulated by TMAO treatment in the small intestine. Gut microbiota analysis showed that TMAO could alter the gut microbial profile and restore the diversity of gut flora. CONCLUSION These data suggest that TMAO may modulate the gut microbiota, inhibit intestinal cholesterol absorption, and ameliorate hepatic ER stress and cell death under cholesterol overload, thereby attenuating HFHC diet-induced steatohepatitis in rats. Further studies are needed to evaluate the influence on CVD and define the safe does of TMAO treatment.

关键词： Gut microbiota Trimethylamine N-oxide Nonalcoholic steatohepatitis Endoplasmic reticulum stress Cholesterol

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Heterogeneous body compositions and all-cause mortality in acute coronary syndrome patients:a ten-year retrospective cohort study

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Journal of Geriatric Cardiology 2024年第5期21卷 534-541页

作者： Guang-zhi LIAO Lin BAI Yu-Yang YE Xue-feng CHEN xin-Ru HU Yong PENG Department of Cardiology West China HospitalSichuan UniversityChengduSichuanChina

BACKGROUND The association of different body components,including lean mass and body fat,with the risk of death in acute coronary syndrome(ACS)patients are *** We enrolled adults diagnosed with ACS at our center between January 2011 and December 2012 and obtained fol-low-up outcomes via telephone *** used restricted cubic splines(RCS)with the Cox proportional hazards model to analyze the associations between body mass index(BMI),predicted lean mass index(LMI),predicted body fat percentage(BF),and the value of LMI/BF with 10-year *** also examined the secondary outcome of death during *** During the maximum 10-year follow-up of 1398 patients,331 deaths(23.6%)occurred,and a U-shaped relationship was found between BMI and death risk(P_(nonlinearity)=0.03).After adjusting for age and history of diabetes,the overweight group(24≤BMI<28 kg/m^(2))had the lowest mortality(HR=0.53,95%CI:0.29-0.99).Predicted LMI and LMI/BF had an inverse linear relationship with a 10-year death risk(P_(nonlinearity)=0.24 and P_(nonlinearity)=0.38,respectively),while an increase in BF was associ-ated with increased mortality(P_(nonlinearity)=0.64).During hospitalization,31 deaths(2.2%)were recorded,and the associations of the indicators with in-hospital mortality were consistent with the long-term outcome *** Our study provides new insight into the“obesity paradox”in ACS patients,highlighting the importance of considering body composition *** LMI and BF may serve as useful tools for assessing nutritional status and predicting the prognosis of ACS,based on their linear associations with all-cause mortality.

关键词： patients mortality coronary

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Present situation and prospect of immunotherapy for unresectable locally advanced esophageal cancer during peri-radiotherapy

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World Journal of Gastrointestinal Oncology 2024年第1期16卷 1-7页

作者： feng-Mei Wang Peng Mo Xue Yan xin-Yue Lin zhi-Chao Fu Department of Obstetrics and Gynecology Fuzong Clinical Medical College(900th Hospital)Fujian Medical UniversityFuzhou 350025Fujian ProvinceChina Department of Obstetrics and Gynecology Dongfang HospitalXiamen UniversityFuzhou 350025Fujian ProvinceChina Department of Radiotherapy Fuzong Clinical Medical College(900th Hospital)Fujian Medical UniversityFuzhou 350025Fujian ProvinceChina Department of Radiotherapy Dongfang HospitalXiamen UniversityFuzhou 350025Fujian ProvinceChina

Four major studies(Checkmate577,Keynote-590,Checkmate649 and Attraction-4)of locally advanced esophageal cancer published in 2020 have established the importance of immunotherapy,represented by anti-programmed death protein(PD)-1 in postoperative adjuvant treatment and advanced first-line treatment of locally advanced or advanced esophageal cancer and esophagogastric junction cancer,from the aspects of proof of concept,long-term survival,overall survival rate and progression-free *** unresectable or inoperable nonmetastatic esophageal cancer,concurrent radiotherapy and chemotherapy is the standard treatment recommended by various *** its curative effect is still not ideal,it is necessary to explore radical radiotherapy and chemotherapy in the future,and it is considered to be promising to combine them with immunotherapeutic drugs such as *** paper mainly discusses how to combine radical concurrent radiotherapy and chemotherapy with immunotherapy for unresectable local advanced esophageal cancer.

关键词： Esophageal carcinoma Locally advanced Radiotherapy Immunotherapy

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