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Synthesis and Crystal Structure of a 1D Coordination Polymer:{[Cu(HSSA)(py)_3]·H_2O}_n (H_3SSA =5-Sulfosalicylic Acid,py = Pyridine) 被引量:1
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作者 葛春华 张向东 +4 位作者 关磊 尹晶 王铁梅 赵阳 何翠 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2009年第8期1028-1032,共5页
The title compound [Cu(HSSA)(py)3H2O]n (H3SSA = 5-sulfosalicylic acid, py = pyridine) I has been synthesized and structurally determined by single-crystal X-ray diffraction. I was further characterized by elemen... The title compound [Cu(HSSA)(py)3H2O]n (H3SSA = 5-sulfosalicylic acid, py = pyridine) I has been synthesized and structurally determined by single-crystal X-ray diffraction. I was further characterized by elemental analyses, thermogravimetric analyses, IR and UV-visible spectroscopy. The crystal belongs to the monoclinic system, space group P21/c with a = 9.4564(10), b = 18.2679(19), c = 15.7284(12) A,β= 126.045(4)°, V= 2196.9(4)A^3, Z= 4, Dc = 1.618 g/cm^3, Mr = 535.02,μ = 1.141 mm^-1, F(000) = 1100, 2(MoKα) = 0.71073 A, the final R = 0.0429 and wR = 0.1044 for all observed reflections. In the structure, every two Cu(II) atoms are bridged by a bivalent 5-sulfosalicylic anion to form a 1D chain-like coordination polymer. Lattice waters between chains link them to form 2D layers which are further linked by C-H…O hydrogen bonds to form a three-dimensional supramolecular network. 展开更多
关键词 copper(II) complex 5-sulfosalicylic acid coordination polymer crystal structure
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Structure, Growth and Characterization of Ammonium 5-Sulfosalicylic Acid Monohydrate Crystal 被引量:1
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作者 吕洋洋 叶李旺 +3 位作者 许智煌 曹有杰 苏根博 庄欣欣 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2015年第3期453-460,共8页
Ammonium 5-sulfosalicylic acid monohydrate (NH4·C7H5O6S·H2O, ASSA) was synthesized and optical grade crystal with dimensions of 45ram × 20mm × 18mm was obtained from aqueous solution by the cooli... Ammonium 5-sulfosalicylic acid monohydrate (NH4·C7H5O6S·H2O, ASSA) was synthesized and optical grade crystal with dimensions of 45ram × 20mm × 18mm was obtained from aqueous solution by the cooling solution method. The crystal structure was confirmed by X-ray single-crystal diffraction method and the empirical composition is C7HIINO7S with formula weight 253.23. The crystal belongs to monoclinic space group P21/c with a = 1 1.884(9), b = 7.306(5), c = 12.152(9) A, β = 104.851(13)°, V= 1019.8(13) A3, Z = 4, Dc = 1.649 g/cm3,μ = 0.340 mm-1, F(000) =528, the final R= 0.0307 and wR= 0.0866 for 7494 observed reflections (I〉 2σ(I)), Elemental analysis, 1R and 1H-NMR spectrum were used to characterize the compound. Thermal analysis showed that one coordination water molecule was contained and dehydration temperature of ASSA crystal was 106℃. Optical transmission and fluorescence spectrum revealed that the ASSA crystal exhibited a strong absorption in ultraviolet region with the sharp absorption edge located at 340 nm and a significant blue fluorescent emission band at 442 nm. 展开更多
关键词 ammonium 5-sulfosalicylic acid monohydrate crystal growth crystal structure fluorescence spectrum
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SINGLE AND BINARY ADSORPTION PERFORMANCE OF SALICYLIC ACID AND 5-SULFOSALICYLIC ACID ONTO HYPERCROSSLINKED POLYMERIC ADSORBENTS
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作者 刘福强 《Chinese Journal of Polymer Science》 SCIE CAS CSCD 2005年第4期373-378,共6页
Single and binary adsorption behaviors of salicylic acid and 5-sulfosalicylic acid onto hypercrosslinked polymeric adsorbents,i.e.NDA-101 and NDA-99 were investigated.The Freundlich model can successfully describe all... Single and binary adsorption behaviors of salicylic acid and 5-sulfosalicylic acid onto hypercrosslinked polymeric adsorbents,i.e.NDA-101 and NDA-99 were investigated.The Freundlich model can successfully describe all the adsorption isotherms tested,which indicates a favorable and exothermic adsorption process.The adsorption of salicylic acid relies on π-π interaction,while the electrostatic interaction further influences the adsorption of 5-sulfosalicylic acid onto NDA-99.The adsorptive capacity of salicylic acid on NDA-99 decreases but increases on NDA-101 with 5-sulfosalicylic acid as the background component in a binary solute system.The amount of 5-sulfosalicylic acid adsorbed was decreased with the increase in initial concentration of salicylic acid on both adsorbents.The competition for the adsorption sites is considered to be predominant in the solid-to-liquid interaction process.The adsorption selectivity of salicylic acid onto NDA-101 is higher than onto NDA-99 by more than an order of magnitude.Thus,combination technique involving NDA-101 followed by NDA-99 can be effectively applied to separate and recover salicylic acid and 5-sulfosalicylic acid from wastewater. 展开更多
关键词 Binary competitive adsorption Hypercrosslinked polymeric adsorbent Salicylic acid 5-sulfosalicylic acid
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Transforming liquid flow fuel cells to controllable reactors for highlyefficient oxidation of 5-hydroxymethylfurfural to 2, 5-furandicarboxylic acid at low temperature
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作者 Ye Qiang Xi Liu +2 位作者 Denghao Ouyang Zhao Jiang Xuebing Zhao 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2024年第3期621-631,I0014,共12页
Highly-efficient oxidation of 5-hydroxymethylfurtural(HMF) to 2,5-furandicarboxylic acid(FDCA) at low temperature with air as the oxidant is still challenging.Herein,inspired by the respirato ry electron transport cha... Highly-efficient oxidation of 5-hydroxymethylfurtural(HMF) to 2,5-furandicarboxylic acid(FDCA) at low temperature with air as the oxidant is still challenging.Herein,inspired by the respirato ry electron transport chain(ETC) of living cells mediated by electron carriers,we constructed artificial ETCs and transformed liquid flow fuel cells(LFFCs) to flexible reactors for efficient oxidation of HMF to produce FDCA under mild conditions.This LFFC reactor employed an electrodeposition modified nickel foam as an anode to promote HMF oxidation and(VO_(2))_(2)SO_(4) as a cathode electron carrier to facilitate the electron transfer to air.The reaction rate could be easily controlled by selecting the anode catalyst,adjusting the external loading and changing the cathodic electron carrier or oxidants.A maximal power density of 44.9 mW cm^(-2) at room temperature was achieved,while for FDCA production,short-circuit condition was preferred to achieve quick transfer of electrons.For a single batch operation with 0.1 M initial HMF,FDCA yield reached 97.1%.By fed-batch operation,FDCA concentration reached 144.5 g L^(-1) with a total yield of 96%.Ni^(2+)/Ni^(3+) redox couple was the active species mediating the electron transfer,while both experimental and DFT calculation results indicated that HMFCA pathway was the preferred reaction mechanism. 展开更多
关键词 5-HYDROXYMETHYLFURFURAL 2 5-Furandicarboxylic acid ELECTRODEPOSITION Electron transport chain Liquid flow fuel cell
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Supramolecular Assemblies in Salts of 2,2'-Biimidazole with 5-Sulfosalicylic Acid and 3,4,5-Trihydroxybenzoic Acid
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作者 李彦萍 杨频 《Chinese Journal of Chemistry》 SCIE CAS CSCD 2007年第11期1715-1721,共7页
Supramolecular assemblies of 2,2'-biimidazole with 5-sulfosalicylic acid and 3,4,5-trihydroxybenzoic acid, have been synthesized and characterized by single-crystal X-ray diffraction methods. Both the two proton-tran... Supramolecular assemblies of 2,2'-biimidazole with 5-sulfosalicylic acid and 3,4,5-trihydroxybenzoic acid, have been synthesized and characterized by single-crystal X-ray diffraction methods. Both the two proton-transfer compounds of 2,2'-biimidazole with 3-carboxy-4-hydroxybenzenesulfonic acid (5-sulfosalicylic acid, 5-SSA) [namely bis(2-(2-1H-imidazolyl)-1H-imidazolium) 4-hydroxybenzene-3-carboxylate-1-sulfonate monohydrate, 2(C6HTN4)^+· CTH4068^2-.H2O, (Ⅰ)] and 3,4,5-trihydroxybenzoic acid [namely 2,2'-bi-1H-imidazolium bis(3,4,5-trihydroxybenzoate) tetrahydrate, C6H8N4^2+ ·2(C7H5O5)^-·4(H20), (Ⅱ)] feature extensively hydrogen-bonded three-dimensional network structures having significant interlayer n-n interactions between the cation and anion species. In Ⅰ, a 5-SSA^2- dianionic species results from deprotonation of both the sulfonic and the carboxylic acid groups, all available O-atom acceptors interact with all cation and water molecule donors by hydrogen bonds. In Ⅱ, the formula unit displays a crystallographic inversion symmetry. The structural information about the two complexes between 2,2'-biimidazole compound and benzenecarboxylic acids obtained in this work will be particularly important for the rational design of supramolecular organic functional materials. 展开更多
关键词 2 2'-biimidazole 5-sulfosalicylic acid 3 4 5-trihydroxybenzoic acid hydrogen bonding supramolecular
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Adsorption selectivity of salicylic acid and 5-sulfosalicylic acid onto hypercrosslinked polymeric adsorbents
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作者 LIU Fuqiang XIA Mingfang +2 位作者 FEI Zhenghao CHEN Jinlong LI Aimin 《Frontiers of Environmental Science & Engineering》 SCIE EI CSCD 2007年第1期73-78,共6页
Both bottle-point and column-feeding experi-ments involving different solutes and sorbents were carried out to investigate the adsorption selectivity and separation performance of salicylic acid and 5-sulfosalicylic a... Both bottle-point and column-feeding experi-ments involving different solutes and sorbents were carried out to investigate the adsorption selectivity and separation performance of salicylic acid and 5-sulfosalicylic acid.Their adsorption isotherms onto such hypercrosslinked polymeric adsorbents as NDA-100 and NDA-99 could be well described by the Freundlich equations whose characteristics describe extrathermic and favorable adsorption processes.The adsorp-tion towards NDA-100 mainly depended on the p-p interac-tion,while that towards NDA-99 was extremely influenced by the static-electric interaction.Additionally,the adsorptive capacity of salicylic acid on NDA-99 decreased while it increased on NDA-100 with the presence of 5-sulfosalicylic acid in the adsorptive environment as the competitive component.Comparatively,the adsorption capacity of 5-sulfosalicylic acid decreased on both resins with salicylic acid as the competitive component.In fact,the difference in the interaction between adsorbent and adsorbate resulted in the straight antagonism on the effective adsorption sites on the adsorbent.In conclusion,the adsorption selectivity of salicylic acid onto NDA-100 was obviously larger than that onto NDA-99 with the existence of 5-sulfosalicylic acid in the adsorptive environment.A satisfactory separation and recovery of tested solutes in aqueous phase could be foresee-ably achieved by the sequencing adsorption technique involving NDA-100 as well as NDA-99. 展开更多
关键词 salicylic acid 5-sulfosalicylic acid hyper-crosslinked polymeric adsorbent adsorption selectivity sequencing adsorption technique
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Cocrystallization of N-donor type compounds with 5-sulfosalicylic acid:The effect of hydrogen-bonding supramolecular architectures 被引量:8
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作者 WANG Lei XU LingYan +3 位作者 XUE RuiFeng LU XiFeng CHEN RuiXin TAO XuTang 《Science China Chemistry》 SCIE EI CAS 2012年第1期138-144,共7页
Benzotriazole,N,N'-dimethylpiperazine and N-methylpiperazine were applied to crystallize with 5-sulfosalicylic acid(5-H2SSA),affording three new binary molecular cocrystals [(C6H6N3+).(C7H5O6S-)].H2O(1),[(C6H16N22... Benzotriazole,N,N'-dimethylpiperazine and N-methylpiperazine were applied to crystallize with 5-sulfosalicylic acid(5-H2SSA),affording three new binary molecular cocrystals [(C6H6N3+).(C7H5O6S-)].H2O(1),[(C6H16N22+)1/2.(C7H5O6S-)].H2O(2) and [(C5H14N22+).(C7H5O6S-)2].3H2O(3) under general conditions.Proton-transferring occurs from acid to nitrogen of N-donor compounds in all compounds 1,2 and 3.Analysis of the hydrogen-bonding synthons and their effects on crystal packing were also presented in the context of crystal engineering and host-guest chemistry.In compound 1,1-D infinite chains are extended to a 2-D layered architecture via strong O-H...O hydrogen bonds and then to a 3-D network by N-H...O interactions.Compound 2 and 3 both have the 1-D chain which is formed by O-H...O bonds and weak C-H...O hydrogen bonds.A common intramolecular S(6) [synthon I] ring is formed by the hydroxyl with the carboxyl group in all three compounds. 展开更多
关键词 类化合物 超分子结构 磺基水杨酸 氢键 苯并三氮唑 共晶 N-甲基哌嗪 主客体化学
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非小细胞肺癌组织中lncRNA GAS5、LHPP表达与上皮间质化相关性及临床意义 被引量:1
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作者 陈丽萍 籍强 +5 位作者 陈艳红 史永兴 冯平 林卫佳 项保利 赵建清 《国际检验医学杂志》 CAS 2024年第3期301-307,313,共8页
目的探讨非小细胞肺癌(NSCLC)患者癌组织中长链非编码核糖核酸生长抑制特异性基因5(lncRNA GAS5)、磷酸赖氨酸磷酸组氨酸无机焦磷酸盐磷酸酶(LHPP)表达与上皮间质化(EMT)相关性及临床意义。方法收集2018年6月至2020年1月在河北北方学院... 目的探讨非小细胞肺癌(NSCLC)患者癌组织中长链非编码核糖核酸生长抑制特异性基因5(lncRNA GAS5)、磷酸赖氨酸磷酸组氨酸无机焦磷酸盐磷酸酶(LHPP)表达与上皮间质化(EMT)相关性及临床意义。方法收集2018年6月至2020年1月在河北北方学院附属第一医院行手术切除的NSCLC 90例患者的癌组织及癌旁组织,采用实时荧光定量聚合酶链反应检测lncRNA GAS5、LHPP和EMT相关蛋白[E-钙黏蛋白(E-Cad)、N-钙黏蛋白(N-Cad)和波形蛋白(VIM)]表达。分析NSCLC患者癌组织中lncRNA GAS5、LHPP mRNA与临床病理特征的关系,并通过Pearson相关性分析NSCLC患者癌组织中lncRNA GAS5、LHPP mRNA与EMT相关蛋白表达的相关性。采用Kaplan-Meier法绘制不同lncRNA GAS5、LHPP mRNA表达的NSCLC患者生存曲线,多因素Cox回归分析NSCLC患者预后的影响因素。结果NSCLC患者癌组织中lncRNA GAS5、LHPP mRNA、E-Cad mRNA表达低于癌旁组织,N-Cad mRNA、VIM mRNA表达高于癌旁组织,差异有统计学意义(P<0.05)。Pearson相关性分析显示,NSCLC患者癌组织中lncRNA GAS5与E-Cad mRNA表达呈正相关(r=0.724,P<0.001),与N-Cad mRNA、VIM mRNA表达呈负相关(r=-0.699、-0.689,P<0.001);lncRNA GAS5与LHPP mRNA表达呈正相关(r=0.651,P<0.001)。不同分化程度、肿瘤TNM分期、淋巴结转移的NSCLC患者癌组织中lncRNA GAS5、LHPP mRNA表达比较差异有统计学意义(P<0.05)。Kaplan-Meier生存曲线分析显示,lncRNA GAS5高表达组的3年总生存率[68.18%(30/44)]高于lncRNA GAS5低表达组的3年总生存率[36.96%(17/46)];LHPP mRNA高表达组的3年总生存率[67.39%(31/46)]高于LHPP mRNA低表达组的3年总生存率[36.36%(16/44)],差异有统计学意义(χ^(2)=10.274、10.322,P<0.05)。低分化、肿瘤TNM分期Ⅲ期、有淋巴结转移为NSCLC患者死亡的独立危险因素,lncRNA GAS5≥1.32、LHPP mRNA≥1.12为独立保护因素(P<0.05)。结论NSCLC患者癌组织中lncRNA GAS5、LHPP mRNA低表达,与EMT相关蛋白表达、分化程度、肿瘤TNM分期、淋巴结转移和预后有关,可能成为NSCLC诊治的新靶点。 展开更多
关键词 非小细胞肺癌 长链非编码核糖核酸生长抑制特异性基因5 磷酸赖氨酸磷酸组氨酸无机焦磷酸盐磷酸酶 上皮间质化 预后
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脂肪酸结合蛋白5结合Vimentin蛋白在肝癌中的作用机制
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作者 唐艳萍 李科志 +5 位作者 蔡政民 陶昊 唐嘉营 李学宇 李炎娟 曹骥 《实用医学杂志》 CAS 北大核心 2024年第6期756-761,767,共7页
目的 筛选和验证与脂肪酸结合蛋白5(FABP5)结合的互作蛋白,同时研究FABP5与候选蛋白的调控关系,进一步探讨FABP5在肝癌中的作用机制。方法 采用免疫沉淀联合串联质谱分析方法(IP-MS)筛选出与FABP5相互结合的蛋白;通过免疫共沉淀实验(Co-... 目的 筛选和验证与脂肪酸结合蛋白5(FABP5)结合的互作蛋白,同时研究FABP5与候选蛋白的调控关系,进一步探讨FABP5在肝癌中的作用机制。方法 采用免疫沉淀联合串联质谱分析方法(IP-MS)筛选出与FABP5相互结合的蛋白;通过免疫共沉淀实验(Co-IP)从外源性和内源性层面验证FABP5与候选互作蛋白的结合关系;利用RT-qPCR、Western blot和免疫荧光法观察敲低FABP5对肝癌细胞中波形蛋白(Vimentin)转录和翻译水平的影响;通过鬼笔环肽染色实验观察过表达FABP5对肝癌细胞骨架的影响。结果 IP-MS鉴定出336个与FABP5相互结合的潜在靶蛋白,结合文献,挑选出5个与肿瘤相关的候选蛋白,分别为PRDX1、PRSS3、PKM、HSP90AA1和Vimentin蛋白。通过外源性和内源性Co-IP实验证实FABP5与Vimentin蛋白存在结合关系。敲低FABP5对肝癌细胞中Vimentin mRNA的表达没有显著作用,但可抑制Vimentin蛋白的表达,而过表达FABP5会影响肝癌细胞的骨架。结论 FABP5促进肝癌细胞的迁移和侵袭,其机制可能与FABP5结合调控Vimentin蛋白和影响细胞骨架重塑有关,有望成为抗肝癌的潜在靶点,为肝癌的治疗提供新的思路。 展开更多
关键词 脂肪酸结合蛋白5 波纹蛋白 肝癌 质谱 互作蛋白
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萝卜硫素通过调节ALOX5/NF-κB信号通路调控巨噬细胞糖酵解抑制糖尿病肾病进展
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作者 乌日娜 丁海东 +2 位作者 常宏 孙娜娜 张磊 《安徽医科大学学报》 CAS 北大核心 2024年第3期390-397,共8页
目的探讨萝卜硫素(SFN)调节花生四烯酸5-脂氧合酶基因(arachidonic acid 5-lipoxygenase,ALOX5)/核因子kappa B(NF-κB)信号通路调节巨噬细胞糖酵解对糖尿病肾病(DN)进展的影响。方法生物信息学分析SFN治疗DN的靶基因。使用30 mmol/L高... 目的探讨萝卜硫素(SFN)调节花生四烯酸5-脂氧合酶基因(arachidonic acid 5-lipoxygenase,ALOX5)/核因子kappa B(NF-κB)信号通路调节巨噬细胞糖酵解对糖尿病肾病(DN)进展的影响。方法生物信息学分析SFN治疗DN的靶基因。使用30 mmol/L高葡萄糖(HG)处理人近端肾小管上皮细胞系(HK-2细胞)诱导体外DN模型。将HK-2细胞分为如下组:正常糖(NG)组、HG组、HG+SFN(3 mmol/L)组、HG+ALOX5组、HG+SFN(3 mmol/L)+ALOX5组、HG处理的巨噬细胞+HK-2细胞组、HG+SFN(3 mmol/L)处理的巨噬细胞+HK-2细胞组、HG+ALOX5转染处理的巨噬细胞+HK-2细胞组、HG+SFN(3 mmol/L)+ALOX5转染处理的巨噬细胞+HK-2细胞组。CCK-8检测细胞活力,原位末端脱氧核苷酸转移酶标记(TUNEL)法检测细胞凋亡;葡萄糖和乳酸试剂盒检测各组细胞中葡萄糖和乳酸水平;Western blot检测各组细胞中ALOX5、NF-κB以及糖酵解相关蛋白己糖激酶-2(HK2)、丙酮酸激酶M2(PKM2)、葡萄糖转运蛋白1(GLUT1)的表达;使用链脲佐菌素(STZ)构建DN小鼠模型,DN小鼠给与SFN(0.5 mg/kg)治疗;检测小鼠各项生化指标,HE染色检测肾组织病理变化;Western blot检测小鼠肾脏巨噬细胞中糖酵解相关蛋白己糖激酶-2(HK2)、丙酮酸激酶M2(PKM2)、葡萄糖转运蛋白1(GLUT1)的表达。结果生物信息学分析结果显示ALOX5是SFN治疗DN的靶基因。与HG组相比,SFN处理增强HK-2细胞活力并抑制细胞凋亡(P<0.05);同时,SFN处理抑制HG诱导的巨噬细胞糖酵解相关蛋白的表达,减弱巨噬细胞介导的HK-2细胞损伤(P<0.05);Western blot结果表明SFN抑制ALOX5和NF-κB的表达(P<0.05);小鼠实验结果显示,SFN治疗改善DN小鼠肾功能和肾组织病理学改变,抑制肾组织中巨噬细胞糖酵解相关蛋白的表达(P<0.05)。结论SFN通过抑制ALOX5/NF-κB信号通路抑制巨噬细胞糖酵解从而改善DN进展。 展开更多
关键词 萝卜硫素 糖尿病肾病 巨噬细胞 糖酵解 花生四烯酸5-脂氧合酶 NF-ΚB信号通路
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5-氨基酮戊酸-光动力联合小剂量异维A酸治疗玫瑰痤疮的疗效及安全性研究
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作者 李丽华 陈赵慧 +2 位作者 杨敏 韩静 杨今言 《中国医院用药评价与分析》 2024年第2期161-164,共4页
目的:探讨5-氨基酮戊酸(ALA)-光动力(PDT)联合小剂量异维A酸治疗玫瑰痤疮(AR)的疗效及安全性。方法:选取2022年1月至2023年1月新疆医科大学第二附属医院收治的AR患者86例,采用随机数字表法分为联合组和对照组,各43例。对照组患者采用小... 目的:探讨5-氨基酮戊酸(ALA)-光动力(PDT)联合小剂量异维A酸治疗玫瑰痤疮(AR)的疗效及安全性。方法:选取2022年1月至2023年1月新疆医科大学第二附属医院收治的AR患者86例,采用随机数字表法分为联合组和对照组,各43例。对照组患者采用小剂量异维A酸治疗,联合组患者采用ALA-PDT联合小剂量异维A酸治疗。比较两组患者的临床疗效,治疗前后皮肤红斑指数(EI)、痤疮特异性生活质量量表(Acne-QOL)评分、皮肤生理功能[经皮水分流失量(TEWL)、角质层含水量和pH]、角质层完整性指标(丝氨酸蛋白酶活性、粘脱蛋白质含量)及不良反应发生情况。结果:联合组患者的总有效率为95.35%(41/43),较对照组的79.07%(34/43)更高,差异有统计学意义(P<0.05)。治疗后,联合组患者的EI低于对照组,Acne-QOL评分高于对照组;联合组患者的TEWL、pH低于对照组,角质层含水量高于对照组;联合组患者的丝氨酸蛋白酶活性、粘脱蛋白质含量低于对照组,上述差异均有统计学意义(P<0.05)。联合组、对照组患者不良反应发生率分别为9.30%(4/43)、11.63%(5/43),差异无统计学意义(P>0.05)。结论:ALA-PDT联合小剂量异维A酸治疗AR,可修复患者皮肤屏障功能,改善EI,提高生活质量,疗效显著,安全性高。 展开更多
关键词 5-氨基酮戊酸 光动力 小剂量 异维A酸 玫瑰痤疮
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血清多巴胺、5-羟色胺、高香草酸水平与帕金森病患者认知功能障碍的相关性分析
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作者 胡冰凌 李波 赵媛媛 《国际检验医学杂志》 CAS 2024年第3期373-377,384,共6页
目的探讨血清多巴胺、5-羟色胺、高香草酸水平与帕金森病患者认知功能障碍的关系。方法选取2020年2月至2022年2月巴中市中心医院收治的118例帕金森病患者作为疾病组,另选取同期在该院体检的健康者106例作为对照组,所有研究对象均检测血... 目的探讨血清多巴胺、5-羟色胺、高香草酸水平与帕金森病患者认知功能障碍的关系。方法选取2020年2月至2022年2月巴中市中心医院收治的118例帕金森病患者作为疾病组,另选取同期在该院体检的健康者106例作为对照组,所有研究对象均检测血清多巴胺、5-羟色胺、高香草酸水平,并采用蒙特利尔认知评估量表(MoCA)评估认知功能。根据MoCA评分将帕金森病患者分为认知功能障碍组和无认知功能障碍组,对比认知功能障碍组、无认知功能障碍组血清多巴胺、5-羟色胺、高香草酸水平,采用Pearson法分析血清多巴胺、5-羟色胺、高香草酸水平与帕金森病患者认知功能的相关性,并绘制受试者工作特征曲线分析血清多巴胺、5-羟色胺、高香草酸水平对帕金森病患者认知功能障碍的评估价值。结果疾病组血清多巴胺、5-羟色胺、高香草酸水平及MoCA评分均低于对照组,差异有统计学意义(P<0.05)。疾病组中晚期患者血清多巴胺、5-羟色胺、高香草酸水平及MoCA评分均低于早期患者,差异有统计学意义(P<0.05)。认知功能障碍组血清多巴胺、5-羟色胺、高香草酸水平均低于无认知功能障碍组,差异有统计学意义(P<0.05)。经Pearson分析结果显示,帕金森病患者血清多巴胺、5-羟色胺、高香草酸水平均与MoCA评分呈正相关(P<0.05)。血清多巴胺、5-羟色胺、高香草酸水平联合评估帕金森病患者认知功能障碍的灵敏度高于单独评估帕金森病患者认知功能障碍的灵敏度(χ^(2)=7.413,P=0.006;χ^(2)=9.714,P=0.002;χ^(2)=8.541,P=0.003),其曲线下面积(AUC)高于单独评估帕金森病患者认知功能障碍的AUC(Z=2.479,P=0.013;Z=2.271,P=0.023;Z=2.451,P=0.014)。结论不同分期帕金森病患者血清多巴胺、5-羟色胺、高香草酸水平和认知功能存在差异,血清多巴胺、5-羟色胺、高香草酸水平均与帕金森病患者认知功能关系密切,均对帕金森病患者发生认知功能障碍具有评估价值,但三者血清指标联合更有助于临床评估诊断。 展开更多
关键词 多巴胺 5-羟色胺 高香草酸 帕金森病 认知功能障碍
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龟羚帕安丸对帕金森病大鼠血清NSE、Cys-C、5-HT、5-HIAA及NE水平的影响
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作者 常学辉 陈帅杰 +2 位作者 张良芝 王冬莲 张创业 《中华中医药学刊》 CAS 北大核心 2024年第2期1-4,共4页
目的观察龟羚帕安丸对帕金森病(Parkinson’s disease,PD)大鼠血清神经元特异性烯醇化酶(Neuron-specific enolase,NSE)、胱抑素C(Cystatin C,Cys-C)、5-羟色胺(5-Hydroxytryptamine,5-HT)、5-羟基吲哚乙酸(5-Hydroxyindoleacetic acid,... 目的观察龟羚帕安丸对帕金森病(Parkinson’s disease,PD)大鼠血清神经元特异性烯醇化酶(Neuron-specific enolase,NSE)、胱抑素C(Cystatin C,Cys-C)、5-羟色胺(5-Hydroxytryptamine,5-HT)、5-羟基吲哚乙酸(5-Hydroxyindoleacetic acid,5-HIAA)及去甲肾上腺素(Norepinephrine,NE)水平的影响。方法采用6-羟基多巴胺(6-OHDA)立体定向注射法制作PD大鼠模型,造模成功的PD大鼠随机分为模型组,西药组,中药高、中、低剂量组,中西药合用组,每组15只,另设假手术组15只。模型组及假手术组给予等容积生理盐水灌胃,其余组给予相应药物灌胃,连续给药28 d。大鼠腹主动脉取血,用酶联免疫吸附测定法(Enzyme linked immunosorbent assay,ELISA)检测各组大鼠血清NSE、Cys-C、5-HT、5-HIAA及NE的水平。结果模型组大鼠血清NSE及Cys-C水平均明显升高,血清5-HT、5-HIAA及NE水平均明显降低;中药各剂量组、中西药合用组、西药组血清NSE及Cys-C水平均明显降低,5-HT、5-HIAA及NE水平均明显升高。结论龟羚帕安丸具有明显神经保护作用,作用机制与降低NSE及Cys-C水平,增加5-HT、5-HIAA及NE水平,降低脑实质损伤、神经炎症损伤及提高单胺类神经递质有关。 展开更多
关键词 帕金森病 龟羚帕安丸 神经元特异性烯醇化酶 胱抑素C 5-羟色胺 5-羟基吲哚乙酸
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5-氨基酮戊酸光动力治疗对鲍温病皮损中p53 Caveolin-1表达的影响
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作者 张艳峰 樊磊强 +2 位作者 高悦 孙业晓 徐冰 《河北医学》 CAS 2024年第5期794-798,共5页
目的:探讨5-氨基酮戊酸光动力疗法对鲍温病皮损中p53、Caveolin-1表达的影响及意义。方法:运用5-氨基酮戊酸光动力疗法治疗鲍温病及周围正常皮肤组织各40例,采用免疫组织化学技术(SP法)检测光动力治疗前后鲍温病及周围正常皮肤组织中p53... 目的:探讨5-氨基酮戊酸光动力疗法对鲍温病皮损中p53、Caveolin-1表达的影响及意义。方法:运用5-氨基酮戊酸光动力疗法治疗鲍温病及周围正常皮肤组织各40例,采用免疫组织化学技术(SP法)检测光动力治疗前后鲍温病及周围正常皮肤组织中p53、Caveolin-1的阳性细胞表达率。结果:治疗前p53蛋白在正常皮肤组织及BD中表达的阳性率分别为10%、40%(χ^(2)=11.202,P<0.001),差异有统计学意义。治疗后p53在正常皮肤组织及BD的阳性率为10%、5%(χ^(2)=0.712,P=0.399),两者间差异无统计学意义。治疗前后p53在BD中的阳性表达率差异有统计学意义(χ^(2)=14.811,P<0.001)。治疗前Caveolin-1在正常皮肤组织及BD中阳性表达率为15%、55%(χ^(2)=14.449,P<0.001),两者间差异有统计学意义。治疗后正常皮肤组织及BD中Caveolin-1的阳性率为5%、12.5%(χ^(2)=0.816,P=0.366),差异无统计学意义。治疗前后Caveolin-1在BD中的阳性表达率差异有统计学意义(χ^(2)=19.013,P<0.001)。BD中p53与Caveolin-1阳性表达呈正相关性(r=0.533,P=0.015)。结论:p53及Caveolin-1的高表达可能与BD的发生密切关联,且ALA-PDT能够抑制p53及Caveolin-1的表达,从而抑制疾病的发展。通过更大样本量的研究,p53及Caveolin-1可能会成为皮肤相关疾病的诊断工具,并为其治疗提供新的靶点。 展开更多
关键词 5-氨基酮戊酸光动力疗法 鲍温病 P53 CAVEOLIN-1
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基于5-氨基烟酸的锰金属有机框架的合成、结构及荧光传感性质
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作者 江涛 梁晓彤 +4 位作者 廖思燕 刘小慧 余嘉俊 邹霖 邱燕璇 《人工晶体学报》 CAS 北大核心 2024年第2期307-314,321,共9页
室温下,通过溶液法将5-氨基烟酸(5-Hana)与MnCl_(2)反应,成功合成了一例新的三维Mn(II)金属有机框架[Mn_(2)(5-ana)_(4)(H_(2)O)]n(命名为Mn-MOF)。通过X射线单晶衍射、X射线粉末衍射、元素分析、红外光谱、热重分析、紫外-可见光谱和... 室温下,通过溶液法将5-氨基烟酸(5-Hana)与MnCl_(2)反应,成功合成了一例新的三维Mn(II)金属有机框架[Mn_(2)(5-ana)_(4)(H_(2)O)]n(命名为Mn-MOF)。通过X射线单晶衍射、X射线粉末衍射、元素分析、红外光谱、热重分析、紫外-可见光谱和荧光光谱法对配合物的结构和性质进行表征。结构分析表明,配合物属单斜晶系,具有双节点(2,8)-c配位网络结构,其中[Mn_(2)(CO_(2))_(2)(H_(2)O)]二聚单元作为8-连接节点,5-ana-配体作为2-连接节点。分子范德瓦耳斯表面静电势(ESP)分析表明,5-ana-配体的第一反应位点在羧基氧原子附近,ESP最小值为-143.37 kcal·mol^(-1),第二和第三反应位点分别位于吡啶环和氨基氮原子附近。Mn-MOF常温下具有良好的热稳定性。荧光光谱测试显示配合物在256 nm光激发下的最大发射波长为402 nm。更重要的是,Mn-MOF可以通过荧光猝灭实现对Fe^(3+)的选择性识别,且猝灭效率达到98.71%,可作为潜在的荧光探针分析水溶液中的Fe^(3+)。 展开更多
关键词 5-氨基烟酸 Mn(Ⅱ) 晶体结构 金属有机框架 荧光传感器 铁离子
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2型糖尿病伴干眼症病人血清和泪液分泌型卷曲相关蛋白5、脂肪酸结合蛋白4水平与病情严重程度的相关性
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作者 张震英 田春雨 +2 位作者 赵乐 闫小艺 郑继香 《安徽医药》 CAS 2024年第1期58-63,共6页
目的分析分泌型卷曲相关蛋白5(SFRP-5)、脂肪酸结合蛋白4(FABP4)在2型糖尿病(T2DM)伴干眼症病人血清和泪液中的表达及其与病情严重程度的相关性。方法选取2020年12月至2021年12月唐山市眼科医院收治的T2DM病人145例,其中单纯T2DM病人84... 目的分析分泌型卷曲相关蛋白5(SFRP-5)、脂肪酸结合蛋白4(FABP4)在2型糖尿病(T2DM)伴干眼症病人血清和泪液中的表达及其与病情严重程度的相关性。方法选取2020年12月至2021年12月唐山市眼科医院收治的T2DM病人145例,其中单纯T2DM病人84例168眼(T2DM组),伴干眼症病人61例122眼(T2DM伴干眼症组),另选取同期该院体检健康者50例100眼作为对照组。T2DM伴干眼症病人又分为轻度组(29例)、中度组(17例)、重度组(15例)。利用酶联免疫吸附法测定所有受试者血清和泪液中SFRP-5、FABP4水平;相关性分析采用Pearson法或Spearman法;logistic回归分析影响T2DM病人干眼症发生的因素。结果T2DM伴干眼症组、T2DM组血清和泪液SFRP-5水平均低于对照组(106.09±8.37、135.72±9.26比158.34±9.45,28.85±5.13、58.27±6.14比45.18±5.92),T2DM伴干眼症组低于T2DM组(P<0.05);T2DM伴干眼症组、T2DM组血清和泪液FABP4水平均高于对照组(70.63±6.59、58.27±6.14比45.18±5.92,15.91±3.76、10.28±3.58比7.72±3.29),T2DM伴干眼症组高于T2DM组(P<0.05)。重度组、中度组血清和泪液SFRP-5水平(68.29±7.15、95.54±8.34比131.82±9.02,12.83±4.62、24.72±5.49比39.56±5.18)、泪膜破裂时间(BUT)、泪液分泌试验(SIT)低于轻度组,重度组低于中度组(P<0.05);重度组、中度组血清和泪液FABP4水平(84.56±6.83、73.18±6.94比61.93±6.27,25.64±4.19、17.15±3.86比10.16±3.47)及眼表疾病指数量表(OSDI)积分高于轻度组,重度组高于中度组(P<0.05)。T2DM伴干眼症病人血清与泪液SFRP-5水平呈正相关,血清与泪液FABP4水平也呈正相关(P<0.05)。T2DM伴干眼症病人血清和泪液SFRP-5水平与OSDI积分均呈负相关,与BUT、SIT均呈正相关(P<0.05);血清和泪液FABP4水平与OSDI积分均呈正相关,与BUT、SIT均呈负相关(P<0.05)。血清和泪液SFRP-5水平是影响T2DM病人干眼症发生的独立保护因素,而血清和泪液FABP4水平是独立危险因素(P<0.05)。结论SFRP-5在T2DM伴干眼症病人血清和泪液中均低表达,FABP4均高表达,二者与病情严重程度密切相关。 展开更多
关键词 糖尿病 2型 糖尿病并发症 干眼病 血清 眼泪 分泌型卷曲相关蛋白5 脂肪酸结合蛋白4 病情严重程度
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18β-glycyrrhetinic acid inhibits proliferation of gastric cancer cells through regulating the miR-345-5p/TGM2 signaling pathway 被引量:1
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作者 Xia Li Xiao-Ling Ma +8 位作者 Yi Nan Yu-Hua Du Yi Yang Dou-Dou Lu Jun-Fei Zhang Yan Chen Lei Zhang Yang Niu Ling Yuan 《World Journal of Gastroenterology》 SCIE CAS 2023年第23期3622-3644,共23页
BACKGROUND Gastric cancer(GC)is a common gastrointestinal malignancy worldwide.Based on cancer-related mortality,the current prevention and treatment strategies for GC still show poor clinical results.Therefore,it is ... BACKGROUND Gastric cancer(GC)is a common gastrointestinal malignancy worldwide.Based on cancer-related mortality,the current prevention and treatment strategies for GC still show poor clinical results.Therefore,it is important to find effective drug treatment targets.AIM To explore the molecular mechanism of 18β-glycyrrhetinic acid(18β-GRA)regulating the miR-345-5p/TGM2 signaling pathway to inhibit the proliferation of GC cells.METHODS CCK-8 assay was used to determine the effect of 18β-GRA on the survival rate of GES-1 cells and AGS and HGC-27 cells.Cell cycle and apoptosis were detected by flow cytometry,cell migration was detected by a wound healing assay,the effect of 18β-GRA on subcutaneous tumor growth in BALB/c nude mice was investigated,and the cell autophagy level was determined by MDC staining.TMT proteomic analysis was used to detect the differentially expressed autophagy-related proteins in GC cells after 18β-GRA intervention,and then the protein-protein interaction was predicted using STRING(https://string-db.org/).MicroRNAs(miRNAs)transcriptome analysis was used to detect the miRNA differential expression profile,and use miRBase(https://www.mirbase/)and TargetScan(https://www.targetscan.org/)to predict the miRNA and complementary binding sites.Quantitative real-time polymerase chain reaction was used to detect the expression level of miRNA in 18β-GRA treated cells,and western blot was used to detect the expression of autophagy related proteins.Finally,the effect of miR-345-5p on GC cells was verified by mir-345-5p overexpression.RESULTS 18β-GRA could inhibit GC cells viability,promote cell apoptosis,block cell cycle,reduce cell wound healing ability,and inhibit the GC cells growth in vivo.MDC staining results showed that 18β-GRA could promote autophagy in GC cells.By TMT proteomic analysis and miRNAs transcriptome analysis,it was concluded that 18β-GRA could down-regulate TGM2 expression and up-regulate miR-345-5p expression in GC cells.Subsequently,we verified that TGM2 is the target of miR-345-5p,and that overexpression of miR-345-5p significantly inhibited the protein expression level of TGM2.Western blot showed that the expression of autophagy-related proteins of TGM2 and p62 was significantly reduced,and LC3II,ULK1 and AMPK expression was significantly increased in GC cells treated with 18β-GRA.Overexpression of miR-345-5p not only inhibited the expression of TGM2,but also inhibited the proliferation of GC cells by promoting cell apoptosis and arresting cell cycle.CONCLUSION 18β-GRA inhibits the proliferation of GC cells and promotes autophagy by regulating the miR-345-5p/TGM2 signaling pathway. 展开更多
关键词 18β-glycyrrhetinic acid Gastric cancer MiR-345-5p TGM2 PROLIFERATION AUTOPHAGY
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All-trans retinoic acid regulates the expression of MMP-2 and TGF-β2 via RDH5 in retinal pigment epithelium cells 被引量:1
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作者 Yu-Mei Mao Chang-Jun Lan +4 位作者 Qing-Qing Tan Gui-Mei Zhou Xiao-Ling Xiang Jia Lin Xuan Liao 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2023年第6期849-854,共6页
·AIM: To investigate the effect of all-trans retinoic acid(ATRA) on retinol dehydrogenase 5(RDH5), matrix metalloproteinase-2(MMP-2) and transforming growth factor-β2(TGF-β2) transcription levels, and the effec... ·AIM: To investigate the effect of all-trans retinoic acid(ATRA) on retinol dehydrogenase 5(RDH5), matrix metalloproteinase-2(MMP-2) and transforming growth factor-β2(TGF-β2) transcription levels, and the effect of RDH5 on MMP-2 and TGF-β2 in retinal pigment epithelium(RPE) cells.·METHODS: After adult RPE cell line-19(ARPE-19 cells) intervened with gradient concentrations of ATRA(0-20 μmol/L) for 24h, flow cytometry was used to detect the proliferation and apoptosis of cells in each group, and quantitative realtime polymerase chain reaction(q RT-PCR) was used to detect RDH5, MMP-2 and TGF-β2 m RNA expression. Then, after ARPE-19 cells transfected with three different si RNA targets for 48h, the RDH5 knockdown efficiency of each group and expression of MMP-2 and TGF-β2 m RNA within them was detected by q RT-PCR. ·RESULTS: Flow cytometry results showed that ATRA could inhibit the proliferation of RPE cells and promote the apoptosis of RPE cells, and the difference of apoptosis was statistically significant when the ATRA concentration exceeded 5 μmol/L and compared with the normal control group(P=0.027 and P=0.031, respectively). q RT-PCR results showed that ATRA could significantly inhibit the expression level of RDH5 m RNA(P<0.001) and promote the expression of MMP-2 and TGF-β2 m RNA(P=0.03 and P<0.001, respectively) in a dose-dependent manner, especially when treated with 5 μmol/L ATRA. The knockdown efficiency of RDH5 si RNA varies with different targets, among which RDH5 si RNA-435 had the highest knockdown efficiency, i.e., more than 50% lower than that of the negative control group(P=0.02). When RDH5 was knocked down for 48h, the results of q RT-PCR showed that the expressions of MMP-2 and TGF-β2 m RNA were significantly up-regulated(P<0.001).·CONCLUSION: ATRA inhibits the expression of RDH5 and promotes MMP-2 and TGF-β2, and further RDH5 knockdown significantly upregulates MMP-2 and TGF-β2. These findings suggest that RDH5 may be involved in an epithelial-mesenchymal transition of RPE cells mediated by ATRA. 展开更多
关键词 KEYWORDS:retinol dehydrogenase 5 matrix metalloproteinase-2 transforming growth factor-β2 all-trans retinoic acid ARPE-19
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基于不同发育时期‘文椰5号’椰子水氨基酸代谢物的测评研究
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作者 马雪静 曹红星 +1 位作者 高艳明 孙程旭 《中国热带农业》 2024年第1期36-45,35,共11页
椰子水中富含必需氨基酸和非必需氨基酸。选用不同发育时期的‘文椰5号’椰子水为研究对象,以本地椰子水为对照,结合液相色谱串联质谱技术的代谢组学,对椰子水中氨基酸含量进行差异代谢物的筛选研究。结果表明,‘文椰5号’在各发育阶段... 椰子水中富含必需氨基酸和非必需氨基酸。选用不同发育时期的‘文椰5号’椰子水为研究对象,以本地椰子水为对照,结合液相色谱串联质谱技术的代谢组学,对椰子水中氨基酸含量进行差异代谢物的筛选研究。结果表明,‘文椰5号’在各发育阶段必需氨基酸(赖氨酸、缬氨酸、组氨酸、苏氨酸)含量及非必需氨基酸(精氨酸、谷氨酰胺、丝氨酸、天冬氨酸)含量均高于本地椰子,亮氨酸与苯丙氨酸、苯丙胺酸与异亮氨酸、丝氨酸与谷氨酸、酪氨酸与谷氨酰胺之间呈极显著正相关。研究结果对今后水果型椰子的选育和精准鉴定具有重要意义。 展开更多
关键词 椰子 ‘文椰5号’ 代谢物 氨基酸 精准测评
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5-氨基乙酰丙酸在果树上的应用进展
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作者 张智涵 姚杰 +4 位作者 张占田 张紫然 陈平 陈海宁 刘保友 《中国果树》 2024年第5期22-27,38,共7页
5-氨基乙酰丙酸(5-aminolevulinic acid,5-ALA)在果树生产中具有广泛的应用。主要综述了5-ALA在促进果树生长发育、增强果树抗逆性、提高产量和果实品质、提升果实耐贮性以及在疏花效应等方面的应用及作用机制,并对其未来的研究方向进... 5-氨基乙酰丙酸(5-aminolevulinic acid,5-ALA)在果树生产中具有广泛的应用。主要综述了5-ALA在促进果树生长发育、增强果树抗逆性、提高产量和果实品质、提升果实耐贮性以及在疏花效应等方面的应用及作用机制,并对其未来的研究方向进行展望,以期为5-ALA在果树相关领域的进一步研究提供理论及实践参考。 展开更多
关键词 5-氨基乙酰丙酸 果树 应用 生长调节
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