检索结果-南通市图书馆

Genetic analysis of transcription factors in dopaminergic neuronal development in Parkinson’s disease

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Medical Journal 2024年第4期137卷 450-456页

作者： Yuwen Zhao lixia Qin Hongxu Pan Tingwei Song Yige Wang Xiaoxia Zhou Yaqin Xiang Jinchen Li Zhenhua Liu Qiying Sun Jifeng Guo Xinxiang Yan Beisha Tang Qian xu Department of Neurology Xiangya HospitalCentral South UniversityChangshaHunan 410008China Department of Neurology The Second Xiangya HospitalCentral South UniversityChangshaHunan 410011China Bioinformatics Center National Clinical Research Center for Geriatric Disorders Xiangya HospitalCentral South UniversityChangshaHunan 410008China Department of Geriatrics Xiangya HospitalCentral South UniversityChangshaHunan 410008China Centre for Medical Genetics and Hunan Key Laboratory of Medical Genetics School of Life SciencesCentral South UniversityChangshaHunan 410008China Key Laboratory of Hunan Province in Neurodegenerative Disorders Central South UniversityChangshaHunan 410008China

Background:Genetic variants of dopaminergic transcription factor-encoding genes are suggested to be Parkinson’s disease(PD)risk factors;however,no comprehensive analyses of these genes in patients with PD have been undertaken.Therefore,we aimed to genetically analyze 16 dopaminergic transcription factor genes in Chinese patients with PD.Methods:Whole-exome sequencing(WES)was performed using a Chinese cohort comprising 1917 unrelated patients with familial or sporadic early-onset PD and 1652 controls.Additionally,whole-genome sequencing(WGS)was performed using another Chinese cohort comprising 1962 unrelated patients with sporadic late-onset PD and 1279 controls.Results:We detected 308 rare and 208 rare protein-altering variants in the WES and WGS cohorts,respectively.Gene-based association analyses of rare variants suggested that MSX1 is enriched in sporadic late-onset PD.However,the significance did not pass the Bonferroni correction.Meanwhile,72 and 1730 common variants were found in the WES and WGS cohorts,respectively.Unfortunately,single-variant logistic association analyses did not identify significant associations between common variants and PD.Conclusions:Variants of 16 typical dopaminergic transcription factors might not be major genetic risk factors for PD in Chinese patients.However,we highlight the complexity of PD and the need for extensive research elucidating its etiology.

关键词： Parkinson’s disease Transcription factors Dopaminergic neurons Genetic Variants

Regio-and stereo-selective olefinic C–H functionalization of aryl alkenes in ethanol

在线全文

学校读者我要写书评

暂无评论

Organic Chemistry Frontiers 2022年第4期9卷 989-994页

作者： Cong Shen Yuhang Zhu Shuqi Jin Kejie xu Shuxin Luo lixia xu Guofu Zhong Liangjun Zhong Jian Zhang College of Material Chemistry and Chemical EngineeringKey Laboratory of Organosilicon Chemistry and Material TechnologyMinistry of EducationHangzhou Normal UniversityHangzhou311121 ZhejiangPeople’s Republic of China Department of Stomatology The Affiliated Hospital of Hangzhou Normal UniversityHangzhou Normal UniversityHangzhou310015China

We report on N,N-bidentate-chelation-assistedα-and β-olefinic C–H alkenylation of aryl alkenes in ethanol to afford aryl dienes/trienes with excellent regio-and stereo-selectivities.The reaction of 2-alkenyl benzylamine and benzoic acid derived substrates proceeded through six-membered exo-cyclo-metallation and seven-membered endo-cyclometallation.The aerobic protocols feature wide functional-ity tolerance,high selectivities and yields,mild conditions and scalable preparation,and the directing group can be easily removed to afford Boc-protected amine by simple reduction.

关键词： reduction membered stereo

Prevalence of transmitted drug resistance mutations among patients infected with human immunodeficiency virus type 1 (HIV-1) in Henan Province, China

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Medical Journal 2022年第22期135卷 2750-2752页

作者： Jinjin Liu Xiaohua Zhang Mingjie Hou Shuguang Wei Jie Ma lixia xu xuan Yang Yan Sun Chunli Liu Qingxia Zhao Yuqi Huo Tanslational Medicine Research Center Henan Infectious Diseases HospitalZhengzhouHenan 450000China Clinic of Infection and Immunology Henan Infectious Diseases HospitalZhengzhouHenan 450000China Department of Infectious Diseases Henan Infectious Diseases HospitalZhengzhouHenan 450000China

To the Editor:Even with the emergence of highly active antiretroviral therapy,human immunodeficiency virus type 1(HIV-1)remains a serious public health problem worldwide.The widespread use of antiretroviral therapy(ART)has,on the one hand,significantly improved life expectancy in patients infected with HIV-1;on the other hand,it has inevitably brought along with it a difficult problem—viral resistance.Viral resistance is a common phenomenon evolutionarily,particularly in patients with poor adherence and suboptimal drug levels.

关键词： patients immunodeficiency Henan

在线全文

学校读者我要写书评

暂无评论

乐眠操对抑郁伴失眠患者睡眠质量的效果观察

中国医学科学院学报 2024年第1期46卷 49-54页

作者：骆蕾徐文静李丽霞孙伟北京大学第六医院北京大学精神卫生研究所国家卫生健康委员会精神卫生学重点实验室国家精神心理疾病临床医学研究中心睡眠医学科北京100191 北京大学第六医院北京大学精神卫生研究所国家卫生健康委员会精神卫生学重点实验室国家精神心理疾病临床医学研究中心医学伦理办公室北京100191 北京大学第六医院北京大学精神卫生研究所国家卫生健康委员会精神卫生学重点实验室国家精神心理疾病临床医学研究中心儿童科北京100191

目的探讨乐眠操对抑郁伴失眠患者睡眠质量的影响。方法选取2022年2至8月在北京大学第六医院住院的抑郁伴失眠患者79例,根据是否进行乐眠操干预分为对照组(n=40)和试验组(n=39)。试验组患者除常规治疗、护理外,每天早晚各1次乐眠操干预,... 详细信息

目的探讨乐眠操对抑郁伴失眠患者睡眠质量的影响。方法选取2022年2至8月在北京大学第六医院住院的抑郁伴失眠患者79例,根据是否进行乐眠操干预分为对照组(n=40)和试验组(n=39)。试验组患者除常规治疗、护理外,每天早晚各1次乐眠操干预,对照组患者进行常规治疗和护理。采用匹兹堡睡眠质量指数量表(PSQI)、失眠严重程度指数(ISI)、健康调查量表36(SF-36)评估患者在干预前、后的相应指标。结果试验组和对照组一般资料比较差异均无统计学意义(P均>0.05)。乐眠操干预2周后,与对照组比较,试验组患者PSQI、ISI总分明显减少,SF-36总分明显增加(P均<0.001)。结论乐眠操可以改善抑郁伴失眠患者的睡眠质量。

关键词：乐眠操抑郁症失眠睡眠质量

PHBV-硫铁矿基人工湿地处理实际污水处理厂尾水混合营养反硝化研究

在线全文

学校读者我要写书评

暂无评论

北京大学学报（自然科学版） 2024年第2期60卷 315-328页

作者：许正阳周琦贾利霞吴为中邢传宏郑州大学生态与环境学院郑州450001 北京大学环境科学与工程学院北京100871

以河南省新乡市某大型污水处理厂尾水为研究对象,开展模拟人工湿地尾水深度脱氮除磷研究。选用聚羟基丁酸戊酸酯(PHBV)和硫铁矿作为湿地系统的主要功能填料,构建异养反硝化与自养反硝化相结合的混合营养反硝化系统。通过水质指标监测和... 详细信息

以河南省新乡市某大型污水处理厂尾水为研究对象,开展模拟人工湿地尾水深度脱氮除磷研究。选用聚羟基丁酸戊酸酯(PHBV)和硫铁矿作为湿地系统的主要功能填料,构建异养反硝化与自养反硝化相结合的混合营养反硝化系统。通过水质指标监测和高通量测序等手段,探究工艺运行效果与微生物群落结构机制。构建PHBV+硫铁矿组(实验组)和PHBV+陶粒组(对照组),反应器连续运行77天,结果表明,当水力停留时间(HRT)为2小时,进水水质为NO_(3)^(−)-N=8.39±1.72 mg/L,TN=10.41±1.58 mg/L,TP=0.37 mg/L,COD=15.7 mg/L时,平均出水TN浓度达到2.22 mg/L,TP浓度达到0.28 mg/L,COD浓度为32.7 mg/L,PHBV+硫铁矿组人工湿地脱氮效率(78.55%)明显优于PHBV+陶粒组(51.25%),基本上达到地表水环境质量标准(GB 3838—2002)V类。微生物群落结构分析表明,PHBV+硫铁矿组人工湿地中的优势菌属为自养菌Desulfobacter和异养菌unclassified_k__norank_d__Bacteria,丰度分别为23.98%和12.30%,通过自养与异养菌的协同,实现混合营养反硝化,其中与硫代谢相关Desulfobacter主导的自养反硝化在系统脱氮中可能起主要作用。研究结果可为PHBV+硫铁矿基人工湿地尾水生物脱氮除磷的工程实践提供参考。

关键词：人工湿地尾水固相碳源硫铁矿混合营养反硝化

外加电流和磁流下前包钦格复合体神经元中混合簇放电的动力学分析

在线全文

学校读者我要写书评

暂无评论

动力学与控制学报 2024年第4期22卷 61-69页

作者：徐浩王智慧段利霞北方工业大学理学院北京100144

新生哺乳动物呼吸节律的产生与pre-Botzinger复合体中神经元的节律性放电密切相关.放电行为是神经系统中一种复杂的非线性现象,表现为多种模式.混合簇放电是实验观察到的一类放电模式,其产生涉及复杂的动力学机制.磁流和电流的引入对神... 详细信息

新生哺乳动物呼吸节律的产生与pre-Botzinger复合体中神经元的节律性放电密切相关.放电行为是神经系统中一种复杂的非线性现象,表现为多种模式.混合簇放电是实验观察到的一类放电模式,其产生涉及复杂的动力学机制.磁流和电流的引入对神经元的放电模式具有重要的调节作用.我们分别探索了磁流和电流对单个pre-Botzinger复合体神经元内混合簇放电模式的影响.通过快慢分解和双参数分岔分析,研究了磁流和电流对混合簇放电的产生及转迁的动力学机制.结果表明,磁流和刺激电流都能引起混合簇个数的增减性的多次变化,不同于其它簇放电在磁流和刺激电流的作用下引起混合簇个数的单调增加或减少的现象,该结果显示了节律变化现象的多样性.本研究结果有助于揭示和解释呼吸节律中复杂节律模式的动力学机制.

关键词： Pre-Botzinger 复合体混合簇放电分岔快慢分析混合簇个数

Intratumoral Bacteria Dysbiosis Is Associated with Human Papillary Thyroid Cancer and Correlated with Oncogenic Signaling Pathways

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

Engineering 2023年第9期28卷 179-192页

作者： Shuang Yu Yanqiang Ding xuejie Wang Siu Kin Ng Siting Cao Weixin Liu Zhuming Guo Yubin Xie Shubin Hong lixia xu Xiaoxing Li Jie Li Weiming Lv Sui Peng Yanbing Li Joseph J.Y.Sung Jun Yu Haipeng Xiao Department of Endocrinology The First Affiliated Hospital of Sun Yat-Sen UniversityGuangzhou 510080China Institute of Digestive Disease and Department of Medicine and Therapeutics State Key Laboratory of Digestive DiseaseThe Chinese University of Hong KongHong Kong 999077China Department of Head and Neck Surgery Sun Yat-Sen University Cancer CenterGuangzhou 510060China Clinical Trials Unit The First Affiliated Hospital of Sun Yat-Sen UniversityGuangzhou 510080China Institute of Precision Medicine The First Affiliated Hospital of Sun Yat-Sen UniversityGuangzhou 510080China Department of Oncology The First Affiliated Hospital of Sun Yat-Sen UniversityGuangzhou 510080China Department of Breast and Thyroid Surgery The First Affiliated Hospital of Sun Yat-Sen UniversityGuangzhou 510080China Lee Kong Chian School of Medicine Nanyang Technology UniversitySingapore 308232Singapore

Emerging evidence suggests that microbial dysbiosis plays vital roles in many human cancers.However,knowledge of whether the microbial community in thyroid tumor is related to tumorigenesis remains elusive.In this study,we aimed to explore the microbial community in thyroid tissues and its contribution to papillary thyroid cancer(PTC).In parallel,we performed microbial profiling and transcriptome sequencing in the tumor and adjacent normal tissues of a large cohort of 340 PTC and benign thyroid nodule(BTN)patients.Distinct microbial signatures were identified in PTC,BTN,and their adjacent nontumor tissues.Intra-thyroid tissue bacteria were verified by means of bacteria staining,fluorescence in situ hybridization,and immunoelectron microscopy.We found that 17 bacterial taxa were differentially abundant in PTC compared with BTN,which included enrichment in PTC of the pathobionts Rhodococcus,Neisseria,Streptococcus,Halomonas,and Devosia,and depletion of the beneficial bacteria Amycolatopsis.These differentially abundant bacteria could differentiate PTC tumor tissues(PTC-T)from BTN tissues(BTN-T)with an area under the curve(AUC)of 81.66%.Microbial network analysis showed increased correlation strengths among the bacterial taxa in PTC-T in comparison with BTN-T.Immunefunction-corresponding bacteria(i.e.,Erwinia,Bacillus,and Acinetobacter)were found to be enriched in PTC with Hashimoto’s thyroiditis.Moreover,our integrative analysis revealed that the PTC-enriched bacteria had a positive association with key PTC-oncogenic pathway-related genes,including BRAF,KRAS,IRAK4,CTNNB1,PIK3CA,MAP3K7,and EGFR.In conclusion,our results suggest that intratumor bacteria dysbiosis is associated with the thyroid tumorigenesis and oncogenic signaling pathways of PTC.

关键词： Papillary thyroid cancer Benign thyroid nodule Bacteria Transcriptome Hashimoto’s thyroiditis

基于一测多评结合熵权逼近理想解排序法对绵马贯众炭的质量评价

在线全文

学校读者我要写书评

暂无评论

中草药 2024年第7期55卷 2397-2404页

作者：董双涛徐丽霞高建平李宝霞山西药科职业学院山西太原030031 山西医科大学药学院山西晋中030600

目的建立多元统计分析和熵权逼近理想解排序法的绵马贯众炭Dryopteridis Crassirhizomatis Rhizoma Carbonisatum质量评价方法。方法收集不同产地的16批次样品,以绵马贯众素ABBA为内参物,采用一测多评(QAMS)法同时检测绵马贯众炭中白绵... 详细信息

目的建立多元统计分析和熵权逼近理想解排序法的绵马贯众炭Dryopteridis Crassirhizomatis Rhizoma Carbonisatum质量评价方法。方法收集不同产地的16批次样品,以绵马贯众素ABBA为内参物,采用一测多评(QAMS)法同时检测绵马贯众炭中白绵马素AA、二去甲基伪绵马素AA、伪绵马素、白绵马素AP、绵马酸ABA、绵马贯众素ABBA、山柰素、大豆素、去甲氧基荚果蕨素、异槲皮素和圣草次苷含量;采用多元统计分析和熵权逼近理想解排序(entropy weight technique for order preferenceby similarity to ideal solution,EW-TOPSIS)法对绵马贯众炭质量进行评价。结果外标法方法学验证符合《中国药典》2020年版规定,所建立的相对校正因子耐用性良好,QAMS法可用于绵马贯众炭中11个成分含量的同步检测;多元统计分析结果显示16批样品呈现一定的区域差异,去甲氧基荚果蕨素、绵马贯众素ABBA、伪绵马素和山柰素是引起不同批次绵马贯众炭分组的主要变量因子,EW-TOPSIS法结果显示16批绵马贯众炭质量评价贴近度(Jb)为0.1371~0.7067,S12~S16的排序位于前5位,表明吉林产地所得绵马贯众炭整体质量较好。结论所建立的集HPLC-QAMS、多元统计分析及EW-TOPSIS法于一身的综合质量评价方法,省时便捷,为绵马贯众炭的品质评价和质量控制提供参考。

关键词：粗茎鳞毛蕨绵马贯众炭一测多评法多元统计分析主成分分析正交偏最小二乘判别分析法熵权TOPSIS法白绵马素AA 伪绵马素白绵马素AP 绵马贯众素ABBA

丙型肝炎持续病毒学应答后肝癌发生的危险因素及预测模型

在线全文

学校读者我要写书评

暂无评论

临床肝胆病杂志 2024年第6期40卷 1259-1263页

作者：许姗姗仇丽霞柳雅立张晶首都医科大学附属北京佑安医院肝病中心三科北京100069

丙型肝炎是肝癌发生的主要病因之一。随着直接抗病毒药物的应用,95%以上的患者可根除HCV,获得持续病毒学应答(SVR)。有效的抗病毒治疗可以改变丙型肝炎的自然病程,降低肝癌发生风险,但仍有一部分患者会受到年龄、性别、肝纤维化、糖尿... 详细信息

丙型肝炎是肝癌发生的主要病因之一。随着直接抗病毒药物的应用,95%以上的患者可根除HCV,获得持续病毒学应答(SVR)。有效的抗病毒治疗可以改变丙型肝炎的自然病程,降低肝癌发生风险,但仍有一部分患者会受到年龄、性别、肝纤维化、糖尿病、肝脂肪变、饮酒和遗传因素等影响,成为肝癌高危人群。因此,如何识别和预测丙型肝炎SVR后肝癌高危人群需进一步明确与完善。本文通过系统综述丙型肝炎患者SVR后肝癌发生的危险因素和肝癌预测模型,旨在为临床识别丙型肝炎SVR后肝癌高风险人群提供依据。

关键词：丙型肝炎持续病毒学应答肝肿瘤危险因素