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Ultra-deep adsorptive removal of thiophenic sulfur compounds from FCC gasoline over the specific active sites of CeHY zeolite

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Journal of Energy Chemistry 2019年第12期28卷 256-267页

作者： Yun Zu Chang Zhang Yucai Qin Xiaotong Zhang Li Zhang Honghai Liu Xionghou Gao lijuan song College of Chemistry and Chemical Engineering China University of Petroleum(East China)Qingdao 266555ShandongChina Key Laboratory of Petrochemical Catalytic Science and Technology Liaoning Shihua UniversityFushun 113001LiaoningChina Lanzhou Petrochemical Research Center Petrochemical Research InstitutePetro China Company LimitedLanzhou 730060GansuChina

Adsorption desulfurization performance of Na Y,HY and Ce HY zeolites is evaluated in a miniature fixedbed flow by model gasoline containing with thiophene,tetrahydrothiophene,2-methylthiophene,benzothiophene or mixed sulfur *** structural properties of adsorbents are characterized by XRD,N2-adsorption and XPS *** desulfurization mechanisms of these sulfur compounds over the specific active sites of adsorbents as a major focus of this work,have been systematically investigated by using in situ FT-IR spectroscopy with single and double probing *** experimental results show that the Ce HY adsorbent exhibits superior adsorption sulfur capacity at breakthrough point of zero sulfur for ultra-deep removal of each thiophenic sulfur compound,especially in the capture of aromatic 2-methylthiophene(about ca.28.6 mgS/gadsorbent).The results of in situ FT-IR with single probing molecule demonstrate an important finding that high oligomerization ability of thiophene or 2-methylthiophene on the CeHY can promote the breakthrough adsorption sulfur capacity,mainly resulting from the synergy between Br?nsted acid sites and Ce(III)hydroxylated species active sites located in the supercages of Ce ***,the result of in situ FT-IR with double probing molecules further reveals the essence of oligomerization reactions of thiophene and 2-methylthiophene molecules on those specific active *** contrast,the oligomerization reaction of benzothiophene molecules on the active sites of Ce HY cannot occur due to the restriction of cavity size of supercages,but they can be adsorbed on the Br?nsted acid sites via protonation,and on Ce(III)hydroxylated species and extra-framework aluminum hydroxyls species via direct"S-M"bonding *** to the tetrahydrothiophene,adsorption mechanism is similar to that of benzothiophene,except in the absence of *** paper can provide a new design idea of specific adsorption active sites in

关键词： CeHY zeolite Active sites Thiophenic sulfur compounds Adsorption desulfurization Oligomerization ability In situ FT-IR spectroscopy

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苯醚甲环唑拌种对小麦根际微生物群落的影响

植物保护 2024年第2期50卷 163-171页

作者：冯超红李丽娟张姣姣王俊美李亚红刘露露韩自行石瑞杰万鑫茹徐飞宋玉立河南省农业科学院植物保护研究所农业农村部华北南部作物有害生物综合治理重点实验室郑州450002

小麦茎基腐病是我国北方小麦主产区的重大病害,对小麦安全生产造成严重威胁。化学农药的使用是最直接有效的防治方法,在植物病害防治中发挥重要作用。苯醚甲环唑是一种具有较高安全性的三唑类杀菌剂。本课题前期明确了苯醚甲环唑拌种对... 详细信息

小麦茎基腐病是我国北方小麦主产区的重大病害,对小麦安全生产造成严重威胁。化学农药的使用是最直接有效的防治方法,在植物病害防治中发挥重要作用。苯醚甲环唑是一种具有较高安全性的三唑类杀菌剂。本课题前期明确了苯醚甲环唑拌种对小麦茎基腐病有一定的防治效果,且促生增产,但其对小麦根际微生物的影响尚不清楚。本文研究了苯醚甲环唑拌种对茎基腐病田中小麦根际土壤微生物的影响,结果表明,苯醚甲环唑拌种处理对小麦分蘖期,拔节期和灌浆期根际微生物的alpha和beta多样性均无显著影响,但使分蘖期镰孢属的相对丰度显著降低。微生物共现网络分析表明,苯醚甲环唑拌种处理提高了细菌网络的复杂性,降低了真菌网络复杂性,使植株根际微生物网络更接近健康植株根际的特征。该研究从根际微生物的角度为苯醚甲环唑防治小麦茎基腐病的机制研究及对土壤微生物的安全性评价提供理论依据。

关键词：小麦茎基腐病苯醚甲环唑根际微生物镰孢属共现网络

基于生物信息学分析探讨羟基红花黄色素A通过JAK2/STAT3信号通路抑制缺血性脑卒中后神经元凋亡的机制

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中西医结合心脑血管病杂志 2024年第18期22卷 3326-3335,3352页

作者：吴艺舸殷丽君王泽乾贾思锋温春丽宋丽娟马存根山西中医药大学山西晋中030619 湖北中医药大学山西省人民医院山西医科大学太原030001

目的:利用生物信息学技术筛选并鉴定缺血性脑卒中(IS)的关键基因,基于基因富集分析结合相关实验探讨羟基红花黄色素A(HSYA)对脑缺血损伤后神经元凋亡的影响及机制。方法:从GEO数据库获得IS相关的样本数据,进行差异表达基因(DEGs)分析及... 详细信息

目的:利用生物信息学技术筛选并鉴定缺血性脑卒中(IS)的关键基因,基于基因富集分析结合相关实验探讨羟基红花黄色素A(HSYA)对脑缺血损伤后神经元凋亡的影响及机制。方法:从GEO数据库获得IS相关的样本数据,进行差异表达基因(DEGs)分析及基因富集分析,获得关键基因与关键信号通路,并通过体内外实验进行相关验证。建立Sprague-Dawley大鼠大脑中动脉闭塞再灌注模型(MCAO/R),采用蛋白免疫印迹法(Western Blot)和免疫荧光检测Janus激酶2(JAK2)/信号传导转录激活因子3(STAT3)通路的磷酸化水平及凋亡相关蛋白的表达;线粒体膜电位探针检测线粒体膜电位情况进而明确细胞凋亡水平。利用HT-22海马神经元细胞建立糖氧剥夺/复糖氧模型(OGD/R),使用JAK2/STAT3信号通路抑制剂进一步验证HSYA对神经元凋亡的作用机制。结果:通过生物信息学分析研究GSE22255数据集发现23个显著上调的DEGs和2个显著下调的DEGs。富集分析发现其与脂多糖的反应、细胞凋亡的调控、炎症反应、急性炎症反应调节、分子干预信号通路相关。生物过程方面,通过建立特征基因功能网络发现,特征基因与急性炎症反应、凋亡信号通路的调节、脂多糖介导的反应、稳态分子的反应等功能相关。基因集富集分析显示,肿瘤坏死因子α(TNF-α)介导的核因子κB(NF-κB)信号通路、血红素代谢信号通路、细胞凋亡相关信号通路、JAK/STAT3信号通路、P53信号通路发挥着关键作用。筛选出JAK2/STAT3信号通路和凋亡相关通路为研究重点。与假手术组比较,MCAO/R组大鼠磷酸化JAK2(p-JAK2)、磷酸化STAT3(p-STAT3)和促凋亡相关蛋白表达升高(P1),抑凋亡相关蛋白表达降低(P1)。HSYA干预后可抑制JAK2/STAT3信号通路磷酸化激活和神经元凋亡(P1)。体外实验显示,OGD/R组JAK2/STAT3通路被磷酸化激活,促凋亡相关蛋白表达较Normal组升高(P1),抑凋亡相关蛋白表达低于Normal组(P1);加入抑制剂AG490后JAK2、STAT3磷酸化程度降低(P1)。与Normal组比较,OGD/R组凋亡相关蛋白半胱氨酸蛋白酶3(Cleaved Caspase-3)、Bcl-2关联X蛋白(Bax)表达水平升高(P1),Bcl-2表达降低(P1)。HSYA抑制了神经元的凋亡(P1)。结论:JAK2/STAT3信号通路和凋亡相关信号通路在IS后发挥着关键作用,HSYA可能通过调控JAK2/STAT3信号通路,抑制缺血缺氧后神经元凋亡,从而减轻脑损伤。

关键词：缺血性脑卒中生物信息学分析羟基红花黄色素A 脑缺血神经元 Janus激酶2/信号传导转录激活因子3信号通路凋亡实验研究

缺血性脑卒中神经血管单元研究热点与趋势的文献计量可视化分析

同方期刊数据库博看期刊评论

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中国神经免疫学和神经病学杂志 2024年第5期31卷 376-382,414页

作者：但存燕戎梦玮夏天晴丁智斌江楠马存根宋丽娟山西中医药大学国家中医药管理局多发性硬化益气活血重点研究室/神经生物学研究中心 030619 山西白求恩医院(山西医学科学院同济山西医院)山西医科大学第三医院 030032 山西大同大学脑科学研究所/附属第一医院神经科 037009 国药同煤集团总医院神经外科 037003

目的分析全球视野下缺血性脑卒中神经血管单元(neurovascular unit,NVU)的研究进展和未来趋势,以期为该领域的研究者提供参考。方法检索2003-1-1—2023-6-30 Web of science核心数据库收录的有关缺血性脑卒中NVU的研究文献,运用文献计... 详细信息

目的分析全球视野下缺血性脑卒中神经血管单元(neurovascular unit,NVU)的研究进展和未来趋势,以期为该领域的研究者提供参考。方法检索2003-1-1—2023-6-30 Web of science核心数据库收录的有关缺血性脑卒中NVU的研究文献,运用文献计量学方法从发文趋势、发文作者、发文机构、关键词共现、发文期刊等角度对收集的文献进行定量和定性分析。采用VOSviewer软件绘制关键词共现图谱,采用Citespace软件生成爆发词图谱。结果共纳入716篇文献,发表在267种期刊中,共涉及41个国家、801家研究机构、3271名作者。近年来,该研究领域发文趋势不断上升,高被引文章显示引用前10的文献研究内容主要聚焦缺血性脑卒中后血脑屏障、神经炎症、小胶质细胞和星形胶质细胞方面。涉及3340个关键词,其中有67个关键词至少出现了20次,结合2017—2023年爆发词分析显示,其中“细胞凋亡”“血脑屏障”“中医药”“信号通路”“胶质细胞”等关键信息在此阶段受到广泛关注。结论有关缺血性脑卒中NVU研究逐渐引起学者关注,神经元可以接受NVU其他组分的信号调节,通过靶向NVU、保护血脑屏障完整性可减少缺血性脑卒中后细胞凋亡,发挥神经保护作用,这为新药的研发提供了可能性;此外探索针对NVU的缺血性脑卒中发生的生物标志物或许能为缺血性脑卒中疾病鉴定提供更为全面的依据。

关键词：缺血性脑卒中神经血管单元 WOS数据库 VOSviewer 文献计量学可视化

Investigation on Modification of NaY Zeolite and Its Behaviors in Selective Adsorptive Desulfurization of FCC gasoline

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China Petroleum Processing & Petrochemical Technology 2009年第1期11卷 58-62页

作者： Zhu Heli song lijuan Gao Xiang Wang Hongguo Zhang Xiaotong Sun Zhaolin (Liaoning Key Laboratory of Petrochemical Engineering, Liaoning University of Petroleum and Chemical Technology, Fushun 113001) Liaoning Key Laboratory of Petrochemical Engineering Liaoning University of Petroleum and Chemical Technology Fushun 113001 China

NaY zeolite was modified with oxalic acid, and Ce(IV)Y(1) zeolite was obtained via liquid phase ion exchange between the modified NaY zeolite and cerium nitrate. The Ce(IV)Y(2) zeolite was obtained via liquid phase ion exchange between NaY zeolite and cerium nitrate. The performance of two Y zeolites [Ce(IV)Y(1) and Ce(IV)Y(2)] was compared through static selective adsorptive desulfurization of FCC gasoline at room temperature and normal pressure. The sulfur compounds and contents of the FCC gasoline were analyzed by microcoulometry and GC-SCD chromatogram. The results showed that the effect of adsorptive desulfurization of FCC gasoline achieved by Ce(IV)Y(1) zeolite was better than that of Ce(IV)Y(2) zeolite. The rate for adsorptive desulfurization of FCC gasoline by Ce(IV)Y(1) zeolite and Ce(IV)Y(2) zeolite was 85.0% and 62.4%, respectively. The Ce(IV)Y(1) zeolite could adsorb DMTs, which could not be adsorbed by Ce(IV)Y(2) zeolite. The rate of regeneration of extruded Ce(IV)Y(1)zeolite was 95.5%.

关键词： zeolite ion exchange FCC gasoline adsorptive desulfurization DMTs

4-叔丁基-2-(α-甲基苄基)苯酚—二-(2-乙基己基)磷酸协同体系萃取盐湖卤水中的铯

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盐湖研究 2024年第5期32卷 66-75页

作者：程鑫雨时东张禹泽彭小五王毓萱李丽娟牛勇谢绍雷宋富根中国科学院青海盐湖研究所盐湖资源绿色高值利用重点实验室青海西宁810008 青海省盐湖资源综合利用工程技术中心青海西宁810008 中国科学院大学北京100049

铯是重要的战略资源。溶剂萃取法因效率高、成本低、处理量大等优点被广泛应用于铯的分离提取。使用4-(叔丁基)-2-(α-甲基苄基)苯酚(t-BAMBP)萃取体系分离提取铯时会有强碱性萃取尾液产生,这使得该萃取体系的使用将面临着破坏生态、提... 详细信息

铯是重要的战略资源。溶剂萃取法因效率高、成本低、处理量大等优点被广泛应用于铯的分离提取。使用4-(叔丁基)-2-(α-甲基苄基)苯酚(t-BAMBP)萃取体系分离提取铯时会有强碱性萃取尾液产生,这使得该萃取体系的使用将面临着破坏生态、提高成本等诸多困难,尤其对盐湖生态而言,更是极大的挑战。文章采用4(-叔丁基)-2(-α-甲基苄基)苯酚(t-BAMBP)/二(-2-乙基己基)磷酸(P204)协同萃取体系对盐湖卤水中低品位铯的分离提取工艺开展了研究,考察并优化了萃取、反萃工艺条件。实验结果表明,使用1 mol·L^(-1)的t-BAMBP和0.05 mol·L^(-1)的P204组成的有机相在相比为1/4的条件下三级逆流串级萃取卤水,铯的萃取率可达92.62%;使用0.5 mol·L^(-1)的盐酸在15/1相比的条件下三级逆流串级反萃铯的反萃率可达97.27%,铯浓度可初步富集至2.16 g·L^(-1)。本研究为盐湖卤水中的低品位铯的富集提供了新的工艺方法,拓展了溶剂萃取法提取分离铯的应用领域,对低品位铯资源的开发利用及保障我国战略资源安全具有重要意义。

关键词：铯溶剂萃取 4-(叔丁基)-2-(α-甲基苄基)苯酚二-(2-乙基己基)磷酸

The Influence of IFN-α on Blood Plasmacytoid Dendritic Cell in Chronic Myeloid Leukaemia

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Chinese Journal of Clinical Oncology 2009年第2期6卷 113-116页

作者： Chongyang Wu Liansheng Zhang Ye Chai Feixue song Pengyun Zeng lijuan Li Lingling Yue Bin Xiong Department of Hematology and Oncology theSecond Hospital of Lanzhou University Lanzhou 730030. Gansu Province China

OBJECTIVE To study the mechanism of IFN on *** Samples of 15 CML patients and 10 healthy controlswere studied. The flow cytometry was performed to identifycirculating pDCs. The concentration of IFN-α in serum and that inthe supernatant of peripheral blood mononuclear cells (PBMCs)cultured after stimulation with CpG ODN2216 were examinedboth in CML patients and in the healthy controlsRESULTS There was significant reduction in the numberof circulating pDCs, serum concentration of IFN-α and thecapacity of IFN-α producing PBMCs in CML patients comparedwith those in healthy control individuals (P 1). After theactive treatment with IFN-α and hydroxyurea, the quantity andfunction of pDCs were increased in stabilized patients, especiallythe function of pDCs in 2 patients achieving major cytogeneticresponse (MCR). The proportion and function of pDCs and theserum levels of IFN were inversely correlated with both WBC andage of the patients with CML, and positively correlated with thestate of the *** CML patients had a reduced number anddysfunction of circulating pDCs. The active treatment with IFN inCML patients may be related to the restoration of pDCs.

关键词： chronic myeloid leukaemia plasmacytoid dendritic cell IFN-α.

Why do stroke patients with negative motor evoked potential show poor limb motor function recovery?

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Neural Regeneration Research 2013年第29期8卷 2713-2724页

作者： Zhibin song lijuan Dang Yanling Zhou Yanjiang Dong Haimao Liang Zhengfeng Zhu Suyue Pan Department of Neurology Xiaolan Hospital of Southern Medical University Department of Neurology Nanfang Hospital of Southern Medical University

Negative motor evoked potentials after cerebral infarction, indicative of poor recovery of limb motor function, tend to be accompanied by changes in fractional anisotropy values and the cerebral pe-duncle area on the affected side, but the characteristics of these changes have not been reported. This study included 57 cases of cerebral infarction whose motor evoked potentials were tested in the 24 hours after the first inspection for diffusion tensor imaging, in which 29 cases were in the negative group and 28 cases in the positive group. Twenty-nine patients with negative motor evoked potentials were divided into two groups according to fractional anisotropy on the affected side of the cerebral peduncle： a fractional anisotropy 〈 0.36 group and a fractional anisotropy 〉 0.36 group. All patients underwent a regular magnetic resonance imaging and a diffusion tensor imaging examina- tion at 1 week, 1, 3, 6 and 12 months after cerebral infarction. The FugI-Meyer scores of their hemiplegic limbs were tested before the magnetic resonance and diffusion tensor imaging exami-nations. In the negative motor evoked potential group, fractional anisotropy in the affected cerebral peduncle declined progressively, which was most obvious in the first 1-3 months after the onset of cerebral infarction. The areas and area asymmetries of the cerebral peduncle on the affected side were significantly decreased at 6 and 12 months after onset. At 12 months after onset, the area asymmetries of the cerebral peduncle on the affected side were lower than the normal lower limit value of 0.83. FugI-Meyer scores in the fractional anisotropy ≥0.36 group were significantly higher than in the fractional anisotropy 〈 0.36 group at 3-12 months after onset. The fractional anisotropy of the cerebral peduncle in the positive motor evoked potential group decreased in the first 1 month after onset, and stayed unchanged from 3-12 months; there was no change in the area of the cerebral peduncle in the first

关键词： neural regeneration neuroimaging cerebral infarction motor evoked potential fractional anisotropy cerebralpeduncle magnetic resonance diffusion tensor imaging grants-supported paper neuroregeneration

艾曲泊帕治疗原发免疫性血小板减少症疗效及安全性的真实世界单中心数据分析

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中华血液学杂志 2024年第3期45卷 271-276页

作者：董喜凤李亚兰李念斌林纬楠王婷王化泉李丽娟瞿文邢莉民刘鸿吴玉红王国锦宋嘉关晶王晓明邵宗鸿付蓉天津医科大学总医院血液科天津300052 天津市骨髓衰竭及癌性造血克隆防治重点实验室天津300052

目的观察艾曲泊帕治疗原发免疫性血小板减少症(ITP)的疗效及安全性,并分析相关影响因素。方法对自2018年1月至2022年3月在天津医科大学总医院血液科应用艾曲泊帕的198例ITP患者进行回顾性分析。结果198例ITP患者,男70例、女128例,中位年... 详细信息

目的观察艾曲泊帕治疗原发免疫性血小板减少症(ITP)的疗效及安全性,并分析相关影响因素。方法对自2018年1月至2022年3月在天津医科大学总医院血液科应用艾曲泊帕的198例ITP患者进行回顾性分析。结果198例ITP患者,男70例、女128例,中位年龄45(7~88)岁,新诊断ITP 130例(65.7%),持续性ITP 25例(12.6%),慢性ITP 43例(21.7%)。基线出血评分:4分以下患者占84.3%,4分及以上患者占15.7%。艾曲泊帕6周内有效率(初始有效率)为78.8%,其中完全反应(CR)率为49.1%,CR1率为14.6%,CR2率为15.2%;中位起效时间7(7,14)d。艾曲泊帕25、50、75 mg剂量组初始反应率分别为74.1%、85.9%和60.0%(P=0.031),50 mg剂量组初始反应率高于25 mg和75 mg剂量组。在治疗过程中,有70.7%的患者维持初始剂量,8.6%的患者调整到50 mg剂量组,6.1%的患者调整到75 mg剂量组,2例患者调整到100 mg剂量组。且调整剂量后25、50、75 mg各个剂量组的持续有效率分别为83.6%、85.3%和85.7%,差异无统计学意义;调整后,100 mg剂量组共4例,持续有效率为100.0%。艾曲泊帕治疗6周后,ITP患者出血评分总体降低,4分以上病例数降低为0,4分患者比例降低,1~2分患者比例变化不显著。艾曲泊帕治疗中,肝功能异常发生率为7.7%,经药物治疗均能好转,未见有合并血栓病例发生。ITP类型与巨核细胞数量分别是艾曲泊帕疗效的影响因素。新诊断的、持续性、慢性ITP患者对艾曲泊帕的初始有效率分别为85.3%、56%和76.2%(P=0.003);巨核细胞数量减少、正常和增多的ITP患者对艾曲泊帕的初始有效率分别为61.8%、87.1%和84.3%(P=0.009)。结论艾曲泊帕作为二线及以上治疗对成人ITP起效时间较快且具有良好的安全性。艾曲泊帕50 mg、25 mg剂量组相比较,50 mg剂量组初始有效率显著增高。新诊断类型的ITP、巨核细胞数量正常或增多的ITP患者对艾曲泊帕初始反应率更高。

关键词：艾曲泊帕原发免疫性血小板减少症有效性安全性