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缺血性脑卒中铁死亡特征基因NFE2L2的鉴定与验证

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中国组织工程研究 2025年第7期29卷 1466-1474页

作者：王咪马书杰刘杨齐瑞上海中医药大学附属岳阳中西医结合医院康复医学科上海市200437 上海中医药大学上海市201203 上海市第二康复医院上海市200431

背景:铁死亡与缺血性脑卒中的发病密切相关,靶向铁死亡是一种治疗缺血性脑卒中有前景的方案,但具体调控靶点尚不明确。目的:通过生物信息学和机器学习方法筛选缺血性脑卒中铁死亡相关特征基因,并通过细胞实验进行验证,探讨铁死亡在缺血... 详细信息

背景:铁死亡与缺血性脑卒中的发病密切相关,靶向铁死亡是一种治疗缺血性脑卒中有前景的方案,但具体调控靶点尚不明确。目的:通过生物信息学和机器学习方法筛选缺血性脑卒中铁死亡相关特征基因,并通过细胞实验进行验证,探讨铁死亡在缺血性脑卒中的作用。方法:基于GEO数据库和FerrDb数据库选取符合条件的缺血性脑卒中相关数据集和铁死亡表达数据集,通过t检验筛选铁死亡相关差异基因。对铁死亡相关差异基因进行GO功能富集分析与KEGG信号通路富集分析。通过PPI网络分析和机器学习筛选缺血性脑卒中铁死亡的特征基因,利用ROC分析和GSEA分析探究特征基因的准确性和生物功能。然后进行细胞实验,将HT22细胞分为对照组与缺血性脑卒中组,对照组不作任何干预,缺血性脑卒中组加入0.1 mol/L的H_(2)O_(2)干预24 h诱导细胞氧化应激和铁死亡,通过实时荧光定量RT-PCR和Western Blot验证铁死亡的发生和特征基因表达。结果与结论:(1)共获取45个铁死亡相关差异基因,GO和KEGG富集分析发现差异基因与氧化应激、自噬、铁死亡、脂肪细胞因子信号通路和线粒体代谢密切相关。(2)通过PPI网络中的MCODE插件和cytoHubba插件与机器学习中的LASSO算法和SVM-RFE算法共鉴定出1个铁死亡特征基因核因子E2相关因子2(nuclear factor erythroid 2-related factor 2,NFE2L2)。(3)对NFE2L2进行ROC曲线分析,发现在训练集和验证集中构建的诊断预测模型具有良好的准确性与特异性;对NFE2L2进行GSEA分析,发现特征基因通过免疫、炎症反应、氨基酸代谢及神经因子调控等方面参与缺血性脑卒中发病机制的调控。(4)细胞实验的RT-PCR和Western Blot分析表明,与对照组对比,缺血性脑卒中组中的酰基辅酶A合成酶长链家族成员4 mRNA和蛋白表达水平显著增高(P<0.05),谷胱甘肽过氧化物酶4 mRNA和蛋白表达水平显著降低(P<0.05);与对照组对比,缺血性脑卒中组中特征基因NFE2L2 mRNA和蛋白表达水平显著增高(P<0.05)。(5)上述结果证实,缺血性脑卒中与铁死亡密切相关,靶向特征基因NFE2L2可以为研究和治疗缺血性脑卒中提供一定的思路与方向。

关键词：缺血性脑卒中铁死亡生物信息学 HT22细胞机器学习特征基因细胞实验 NFE2L2 ASCL4 GPX4

学业情绪视域下个性化数学作业对学生影响的研究

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兵团教育学院学报 2025年第1期35卷 77-84页

作者：何玉琪芜湖职业技术学院人文旅游学院安徽芜湖241006

数学是一门逻辑性强、难度大的学科,符合学生个性发展的数学作业会对学生学习和心理发展起事半功倍的效果。为探究个性化数学作业对学生学业情绪的影响机制,研究针对蚌埠市Y中学200名学生进行调查得出主要研究结论:(1)学生对个性化数学... 详细信息

数学是一门逻辑性强、难度大的学科,符合学生个性发展的数学作业会对学生学习和心理发展起事半功倍的效果。为探究个性化数学作业对学生学业情绪的影响机制,研究针对蚌埠市Y中学200名学生进行调查得出主要研究结论:(1)学生对个性化数学作业持积极态度,不存在性别差异。(2)学生的作业态度和认识、完成方式、评价与积极学业情绪呈正相关,作业量和难易程度呈负相关。(3)通过回归分析发现,作业类型对学业情绪没有影响。最后基于研究结果从学业情绪视角提出提升个性化数学作业的建议,为助力个性化数学作业提供实践借鉴。

关键词：个性化数学作业学业情绪调查研究

隔姜灸与腕踝针治疗脊髓损伤后尿潴留的临床研究

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中国疗养医学 2025年第1期34卷 43-47页

作者：焦琪驻马店市中医院康复科河南驻马店463000

目的探讨脊髓损伤(SCI)后神经源性膀胱尿潴留患者应用隔姜灸联合腕踝针治疗的效果。方法选择2022年1月至2023年12月驻马店市中医院收治的106例SCI后神经源性膀胱尿潴留患者,采用随机数字表分为两组。对照组53例患者实施常规康复治疗,研... 详细信息

目的探讨脊髓损伤(SCI)后神经源性膀胱尿潴留患者应用隔姜灸联合腕踝针治疗的效果。方法选择2022年1月至2023年12月驻马店市中医院收治的106例SCI后神经源性膀胱尿潴留患者,采用随机数字表分为两组。对照组53例患者实施常规康复治疗,研究组53例患者实施常规康复治疗+隔姜灸联合腕踝针治疗,比较两组排尿日记、尿动力学指标、膀胱功能、生活质量[泌尿症状困扰评分(USDS)]、抑郁情绪[焦虑自评量表(SAS)]。结果研究组患者治疗后最大尿流率(13.12±2.23)mL/s、最大排尿量(241.37±52.13)mL、膀胱最大容量(433.82±48.63)mL,高于对照组的(10.65±2.17)mL/s、(184.26±50.44)mL、(405.12±50.04)mL,充盈期膀胱压、平均排尿次数、尿失禁次数、膀胱残余尿量、膀胱功能评分、USDS、SAS评分低于对照组(P<0.05)。结论SCI后神经源性膀胱尿潴留患者应用隔姜灸联合腕踝针治疗可有效促进排尿,减轻尿潴留,其作用机制可能与改善膀胱功能有关,有助于改善患者生活质量。

关键词：脊髓损伤神经源性膀胱尿潴留隔姜灸腕踝针尿动力学膀胱功能生活质量

Integrating lipidomics and gut microbiota to study the anti-hyperlipidemia effect of Sargentodoxae Caulis extract

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Traditional Medicine Research 2025年第1期10卷 1-11页

作者： Xiao-Xiao Zhang Li Jia Xiu-Jun Zhan Charity Ngina qing-Rui Zhang Xiao-Ge Li qi-Bao Jiang Shi Bai Miao-Miao Jiang National Key Laboratory of Chinese Medicine Modernization Tianjin University of Traditional Chinese MedicineTianjin 301617China Haihe Laboratory of Modern Chinese Medicine Tianjin 301617China School of Medicine Taizhou UniversityTaizhou 318000China.

Background:Sargentodoxae Caulis(SC)is the vine stem of Sargentodoxa Cuneata(Oliv.)Rehd.&*** in ***,and it in traditional Chinese medicine has been known for promoting blood circulation and removing blood stasis as recorded in the ancient book“Illustrated Classics of Materia Medica”.It has been used effectively to treat blood stasis too in modern clinical ***,the anti-hyperlipidemia effect of SC is not fully *** paper aims at exploring the use of SC stems to improve the balance of blood lipids in the body,and its new role in treating ***:The effects of SC extract on hyperlipidemia were explored by combining lipidomics and gut ***,we explored the potential mechanism of SC in treating hyperlipidemia by pathway ***:The results showed that the stem extract of SC could restore the physiological and biochemical indices of hyperlipidemia in mice,as well as repair the morphological and structural damage to *** to the Model group,the SC extract significantly reduced the liver index,epididymal fat index,and Lee’s *** also significantly decreased serum levels of total cholesterol,triglycerides,low-density lipoprotein cholesterol,peroxisome proliferator-activated receptor gamma(PPAR-γ),D-lactate,and free fatty acids,while significantly increasing the relative content of peroxisome proliferator-activated receptor alpha(PPAR-α).These changes were statistically ***-targeted lipidomics,based on LC-MS,were utilized to investigate the lipid metabolism characteristics in serum,liver,and epididymal fat of the *** was observed that,compared to the blank group,the Model group exhibited significant changes primarily in glycerol lipids and *** treatment group also displayed alterations in these lipids.A total of 38,81,and 27 differential lipids were identified in serum,liver,and epididymal fat samples,*** these,14 common differenti

关键词： hyperlipidemia Sargentodoxae Caulis lipidomics intestinal flora

Acute toxicity variation of hydroxyl benzophenone UV filters during photoinduction–chlorination disinfection processes

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Journal of Environmental Sciences 2017年第4期29卷 48-55页

作者： qi Yu State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China University of Chinese Academy of Sciences Beijing 100049 China

Benzophenones（BPs）, a group of widely used UV filters, exert multiple, significant toxicity effects. The 11 BPs were selected as target compounds, and the photobacterium acute toxicity test and an index for acute toxicity formation potential（ATFP） were used to evaluate the toxicity variation of BPs before and after a photoinduction–chlorination disinfection *** experiments were performed at different pH values and chlorine dosages. The characteristics of ATFP values for 11 BPs after a photoinduction–chlorination process can be summarized as follows：（1） The ATFPs decreased as the hydroxyl group number increased in BPs molecules.（2） For those BPs with the same hydroxyl group number, the ATFPs were higher when the hydroxyl groups were located at the 3-or 4-position than those at the 2-position; the BPs with hydroxyl groups distributed on two benzene rings had higher ATFPs than those on one ring.（3） Introducing a methoxyl group and sulfonic acid group into BP molecules increased the ATFP values.（4） The ATFPs were p H-dependent, the values of which were lowest at the neutral condition and highest at the acid condition.（5） The ATFPs increased and then decreased as the chlorine dosage increased. The results can be used as a reference to scientifically evaluate the environmental fate and potential risk of BPs in photoinduction–chlorination disinfection processes.

关键词： Benzophenones Photo induction Chlorination Disinfection Toxicity

Theoretical Studies on Electronic Structures and Spectroscopy of Fluorescent Arylamino Fumaronitrile

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Chinese Journal of Chemical Physics 2008年第2期21卷 105-110页

作者： Xiao-peng Chen Yu-qi Ding qi-wen Teng Department of Chemistry Zhejiang University Hangzhou 310027 China

A new series of fluorescent arylamino fumarinitrile derivatives was designed and optimized using density function theory at the B3LYP/6-31G^＊ level. Based on the optimized geometries, the electronic, fluorescent and 13C NMR spectra are calculated with INDO/CIS, CIS-ZINDO TD, and B3LYP/6-31G^＊ methods, respectively. Starting with the first of the series, the LUMO-HOMO energy gaps of the derivatives become wider and the fluorescent wavelengths and the main peaks in the electronic spectra are blue-shifted owing to the large steric effect of naphthyl rings. On the contrary, the energy gaps of the derivatives turn narrow, and the fluorescent wavelengths and the main peaks in the electronic spectra are red-shifted since hydroxyl groups improve the symmetry and extend the conjugation system. The chemical shifts of sp^2-C on the phenyl rings are moved upfield, while chemical shifts of carbon atoms on the cyano groups and those connected with the cyano groups are changed downfield in the presence of hydroxyl groups.

关键词： Arylamino fumaronitrile Fluorescence Energy gap B3LYP/6-31G^*

TWO-STAGE PRODUCTION SCHEDULING WITH AN OPTION OF OUTSOURCING FROM A REMOTE SUPPLIER

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Journal of Systems Science and Systems Engineering 2009年第1期18卷 1-15页

作者： Xiangtong qi Department of lndustrial Engineering and Logistics Management The Hong Kong University of Science and Technology Hong Kong

This paper studies a two-stage production system with n job orders where each job needs two sequential operations. In addition to the two in-house production facilities, the manufacturer has another option of outsourcing some stage-one operations to a remote outside supplier. The jobs with their stage-one operations outsourced are subject to a batch transportation delay from the outside supplier before their respective stage-two operations can be started in-house. The problem is to design an integrated schedule that considers both the in-house production and the outsourcing with the aim of optimally balancing the outsourcing cost and the makespan. The problem is NP-hard. We have developed an optimal algorithm and a heuristic algorithm to solve the problem, and conducted computational experiments to validate our model and algorithms. Our modeling and algorithm framework can be extended to handle other more general cases such as when the outside supplier has a production facility with a different processing efficiency and when there are many outside suppliers on a spot market.

关键词： Outsourcing scheduling algorithms

Zwitterionic hyaluronic acid derivatives for co-delivery of both chemotherapeutic and nucleic acid drugs in breast cancer treatment

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Nano Research 2025年第1期18卷 607-617页

作者： Ruo-Lin Jiang Hui-Na Liu Yu-Fan Yang Zhi-Cheng Zhang qi Dai Xiao-Yan Bao Lin-Jie Wu Ya-Xin qin Xin Tan Xiao-Yan Sun Xu-Fang Ying Zhi-qing Ben Min Han Institute of Pharmaceutics College of Pharmaceutical SciencesZhejiang UniversityHangzhou 310058China Department of Radiation Oncology Key Laboratory of Cancer Prevention and InterventionThe Second Affiliated HospitalCollege of MedicineZhejiang UniversityHangzhou 310058China Hangzhou Institute of Innovative Medicine Zhejiang UniversityHangzhou 310058China Jinhua Institute of Zhejiang University Jinhua 321299China National Key Laboratory of Advanced Drug Delivery and Release Systems Zhejiang UniversityHangzhou 310058China Polytechnic institute Zhejiang UniversityHangzhou 310015China

Traditionally,hyaluronic acid has been widely used for drug delivery,but the current application bottleneck is that hyaluronic acid is hydrophilic and electronegative,which makes it difficult to carry hydrophobic drugs and small interfering RNA(siRNA)with the same *** on previous studies,we designed and synthesized hyaluronic acid nanocarriers HA-spermine/N,N,N-trimethylcystamine/DOX-TPP(HSTD)for loading siRNA to overcome the problem of siRNA release caused by strong electrostatic ***,N,N,Ntrimethylcystamine in the carrier can be degraded by intracellular glutathione to completely and rapidly release siRNA,thus promoting ***,when codelivered with the chemotherapy drug doxorubicin(DOX),this novel nanocarrier showed promising synergy in inhibiting tumor growth.

关键词： zwitterionic hyaluronic acid N N N-trimethylcystamine small interfering RNA(siRNA) doxorubicin

Big data management in the mining industry

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International Journal of Minerals,Metallurgy and Materials 2020年第2期27卷 131-139页

作者： Chong-chong qi School of Resources and Safety Engineering Central South University School of Civil Environmental and Mining Engineering University of Western Australia

The mining industry faces a number of challenges that promote the adoption of new *** data,which is driven by the accelerating progress of information and communication technology,is one of the promising technologies that can reshape the entire mining *** numerous attempts to apply big data in the mining industry,fundamental problems of big data,especially big data management(BDM),in the mining industry *** paper aims to fill the gap by presenting the basics of *** work provides a brief introduction to big data and BDM,and it discusses the challenges encountered by the mining industry to indicate the necessity of implementing big *** also summarizes data sources in the mining industry and presents the potential benefits of big data to the mining *** work also envisions a future in which a global database project is established and big data is used together with other technologies(i.e.,automation),supported by government policies and following international *** paper also outlines the precautions for the utilization of BDM in the mining industry.

关键词： big data big data management mining industry