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激光联合曲安奈德与曲安奈德对瘢痕疙瘩疗效的Meta分析

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中国医疗美容 2024年第2期14卷 146-150页

作者：李庆银刘秀翠郑州爱美丽医疗美容医院皮肤科河南郑州450000

目的运用Meta分析综合评价激光联合曲安奈德治疗瘢痕疙瘩的临床疗效。方法通过计算机检索Cochrane、Web of science、Pubmed、Embase、维普、万方、中国知网数据库,收集截至2023年8月的激光联合曲安奈德治疗瘢痕疙瘩与单一使用曲安奈德... 详细信息

目的运用Meta分析综合评价激光联合曲安奈德治疗瘢痕疙瘩的临床疗效。方法通过计算机检索Cochrane、Web of science、Pubmed、Embase、维普、万方、中国知网数据库,收集截至2023年8月的激光联合曲安奈德治疗瘢痕疙瘩与单一使用曲安奈德治疗的对照试验。由2位研究者独立进行文献筛选、资料提取,纳入使用温哥华瘢痕量表(Vancouver Scar Scale,VSS)评估治疗效果和报告不良反应,连续数据和二分类变量分别以平均差(Mean Difference,MD)和相对风险(Risk Ratio,RR)进行分析,使用RevMan5对结局指标进行Meta分析,并进行发表偏倚检验。结果总计有5项随机对照试验和3项临床对照试验纳入最终分析,涵盖了983名患者。Meta分析结果表明:激光联合曲安奈德治疗瘢痕疙瘩的总有效率(RR=1.23,95%CI[1.12,1.35],P<0.0001)、VSS评分(MD=-1.97,95%CI[-2.20,-1.74],P<0.00001)、不良反应(RR=1.23,95%CI[1.12,1.35],P<0.00001)均优于单独应用曲安奈德治疗。结论当前证据表明激光联合曲安奈德治疗瘢痕疙瘩的效果明显,副作用更少。激光联合曲安奈德是治疗瘢痕疙瘩的有效手段。

关键词：激光曲安奈德瘢痕疙瘩 Meta分析

天天胶囊及其原料芦荟在大鼠体内的存在形式研究

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中国中药杂志 2024年第6期49卷 1641-1660页

作者：张静郝北泉李寅庆王光路徐风刘广学尚明英蔡少青北京大学药学院生药学研究室北京100191 河北御芝林药业有限公司河北石家庄050035

为了阐明组方药材芦荟对天天胶囊体内存在形式(原形成分和代谢产物)的贡献,首次对芦荟、天天胶囊及去芦荟天天胶囊在大鼠体内的存在形式进行了研究。大鼠灌胃给药,每天1次,连续灌胃7 d。收集给药7 d的全部尿液和粪便,最后一次灌胃给药... 详细信息

为了阐明组方药材芦荟对天天胶囊体内存在形式(原形成分和代谢产物)的贡献,首次对芦荟、天天胶囊及去芦荟天天胶囊在大鼠体内的存在形式进行了研究。大鼠灌胃给药,每天1次,连续灌胃7 d。收集给药7 d的全部尿液和粪便,最后一次灌胃给药后分别于0.5、1、1.5 h收集血液。采用UHPLC⁃Q⁃TOF⁃MS检测和鉴定生物样品中的存在形式,分别鉴定了芦荟给药组、天天胶囊给药组、去芦荟天天胶囊给药组生物样品中的原形成分34、28、2个及代谢产物64、94、0个。代谢反应类型主要为甲基化、氢化、羟基化、脱羟基、葡萄糖醛酸结合、硫酸结合等。该研究首次阐明了芦荟、天天胶囊、去芦荟天天胶囊在大鼠体内的存在形式和部分代谢途径,为进一步揭示其显效形式奠定基础,并对中药芦荟和天天胶囊的作用机制及质量控制研究具有重要意义。

关键词：天天胶囊芦荟 UHPLC⁃Q⁃TOF⁃MS 体内代谢

基于基准关联度和AHP-熵权法优化经典名方达原饮的提取工艺

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时珍国医国药 2024年第3期35卷 612-615页

作者：张荣华靳梓微邱智东李银清长春中医药大学药学院吉林长春130117

目的评价现代工艺与传统工艺产品质量的一致性,基于基准关联度和层析分析法(AHP)-熵权法优选经典名方达原饮的提取工艺。方法在遵古原则的基础上,以槟榔碱、厚朴酚、和厚朴酚、黄芩苷含量及指纹图谱相似度和出膏率为评价指标,引用基... 详细信息

目的评价现代工艺与传统工艺产品质量的一致性,基于基准关联度和层析分析法(AHP)-熵权法优选经典名方达原饮的提取工艺。方法在遵古原则的基础上,以槟榔碱、厚朴酚、和厚朴酚、黄芩苷含量及指纹图谱相似度和出膏率为评价指标,引用基准关联度评价工艺产品质量一致性,用AHP-熵权法确定指标权重系数,结合正交试验优选经典名法达原饮的提取工艺参数并验证。结果基准关联度结合层次分析-熵权法优选出的达原饮最佳提取工艺为加水量8倍,提取1次,每次1 h。结论筛选出达原饮现代提取工艺参数具有可行性,为经典名法达原饮复方制剂的开发研究奠定基础。

关键词：达原饮提取工艺基准关联度层次分析法熵权法

Theoretical study on the reaction of VS^+(~3∑^-,~1Γ)with CO

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Chinese Chemical Letters 2008年第8期19卷 1008-1011页

作者： Shi Wen Yu li qing yin li Feng Yao Ming li Xiao Guang Xie Department of Chemistry Yunnan University Kunming 650091 China

Two possible reaction mechanisms of VS^＋（^3∑^-, 1^Г） with CO in the gas phase have been studied by using B3LYP/TZVP and CCSD（T）/6-311＋G （3df, 3pd） methods： the O/S exchange reaction （VS^＋＋CO→VO^＋＋CS） and the S-transfer reaction （VS^＋＋ CO → V^＋＋ COS）. The two reactions proceed via two-step and one-step mechanism, respectively. The barriers of the triplet and singlet PESs are 30.6 and 50.9 kcal/mol, respectively, for O/S exchange reaction and 7.3 and 50.2 kcal/mol, respectively, for the S-transfer reaction. The results indicate that the triplet ground state reaction is more favorable, and the S-transfer reaction is more favorable than the O/S exchange reaction, which is in good agreement with the experimental observation.

关键词： Vanadium sulfide ion CO Reaction CCSD(T)

Theoretical study on the reaction of NbS^+(~3∑^-,~1Γ) with CO

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Chinese Chemical Letters 2009年第6期20卷 755-758页

作者： Shi Wen Yu TaoHong li Xiao Mei Yang li qing yin li Feng Yao Xiao Guang Xie Department of Chemistry Yunnan University Kunming 650091 China Department of Chemistry Qujing Normal University Qujing 650011 China Faculty of Chemistry Southwest Forestry University Kunming 650224 China Yunnan University of Traditional Chinese Medicine Kunming 650091 China

Two possible reactions of NbS＋（3∑^-, 1Г） with CO in the gas phase have been studied by using B3LYP and CCSD（T） methods： the O/S exchange reaction （NbS^＋＋ CO → NbO^＋＋ CS） and the S-transfer reaction （NbS＋＋ CO → Nb^＋＋ COS）. The two reactions have a one-step mechanism. The barriers of the O/S exchange reaction on the triplet and singlet surfaces are 51.2 and 52.4 kcal/mol, respectively, and the barriers of the S-transfer reaction are 58.3 and 78.0 kcal/mol, respectively. The results indicate that the Stransfer and the O/S exchange reaction of the 3∑^- ground state of NbS＋ are competing, but, for the S-transfer reaction, the 1F exited state is more reactive. The differences between the reactions of NbS＋（3∑^_, 1Г） and VS＋（3∑^_, 1Г） are discussed.

关键词： Niobium sulfide cation CO Reaction CCSD(T)

Effect of biochar application on rice,wheat,and corn seedlings in hydroponic culture

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Journal of Environmental Sciences 2024年第1期135卷 379-390页

作者： yingjie yin Jikai li Sihang Zhu qing Chen Chong Chen Yukui Rui Jianying Shang College of Land Science and Technology China Agricultural UniversityKey Laboratory of Plant-Soil InteractionsMinistry of Educationand Key Laboratory of Arable Land Conservation in North ChinaMinistry of Agriculture and Rural AffairsBeijing 100193China Agricultural Management Institute Ministry of Agriculture and Rural AffairsBeijing 102208China College of Resources and Environmental Sciences China Agricultural UniversityBeijing Key Laboratory of Farmland Soil Pollution Prevention and RemediationBeijing 100193China

In recent years,biochar has attracted considerable attention for soil quality improvement and carbon sequestration due to its unique physicochemical ***,the mechanism by which biochar application negatively affects the growth of crop seedlings has not been fully *** this study,a hydroponic experiment was conducted to evaluate the response of rice,wheat,and corn seedlings to biochar application(CK,0 g/L;BC1,0.5 g/L;and BC2,1.0 g/L).Compared with the CK treatment,the BC1 and BC2 treatments decreased the fresh shoot and root weights of rice and corn seedlings(Plings(P>0.05).For the contents of nutrient elements in seedlings,both BC1 and BC2 treatments hindered the roots from absorbing Fe and Cu and increased the uptake of Ca and *** with the CK treatment,the translocation factor(TF)values of Ca,Mn,and Zn were significantly decreased especially in rice seedlings(35.3%-36.8%,68.7%-76.5%,and 29.8%-22.0%,respectively)under the BC1 and BC2 treatments,while only Mn was significantly decreased in wheat and corn seedlings(Plication can reduce nutrient absorption and translocation,and hinder rice,wheat,and corn seedlings,particularly rice seedling,in hydroponic system.

关键词： Biochar Toxicity Seedling growth Hydroponic cultivation

Quasi-two dimensional Ruddlesden−Popper halide perovskites for laser applications

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Frontiers of physics 2024年第2期19卷 53-71页

作者： Kun Chen Qianpeng Zhang yin liang Jiepeng Song Chun li Shi Chen Fang li qing Zhang School of Mechanical and Electrical Engineering Wuhan Institute of TechnologyWuhan 430205China School of Materials Science and Engineering Peking UniversityBeijing 100871China Institute of Applied Physics and Materials Engineering Macao UniversityMacao 999078China

Quasi-two-dimensional(2D)Ruddlesden‒Popper(RP)halide perovskites,as a kind of emerged two-dimensional layered materials,have recently achieved great attentions in lasing materials field owing to their large exciton binding energy,high emission yield,large optical gain,and wide-range tuning of optical *** review will introduce research progresses of RP halide perovskites for lasing applications in aspects of materials,photophysics,and devices with emphasis on emission and lasing properties tailored by the molecular composition and *** materials,structures and fabrications are introduced in the first ***,the optical transitions and amplified spontaneous emission properties are discussed from the aspects of electronic structure,exciton,gain dynamics,and interface ***,the research progresses on lasing devices are summarized and several types of lasers including VCSEL,DFB lasers,microlasers,random lasers,plasmonic lasers,and polariton lasers are *** last,the challenges and perspectives would be provided.

关键词： two-dimensional materials metal halide perovskite Ruddlesden−Popper halide perovskites lasing emission

Cross-linked Electrospun Gel Polymer Electrolytes for lithium-Ion Batteries

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Chinese Journal of Polymer Science 2024年第8期42卷 1021-1028页

作者： Xue Gong Qin Xiao qing-yin li Wen-Cui liang Feng Chen Long-Yu li Shi-Jie Ren College of Polymer Science and Engineering State Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu 610065China

lithium-ion batteries(liBs)benefit from an effective electrolyte system design in both terms of their safety and energy storage ***,a series of precursor membranes with high porosity were produced using electrospinning technology by mixing PVDF and triblock copolymer(PS-PEO-PS),resulting in a porous structure with good interconnections,which facilitates the absorbency of a large amount of electrolyte and further increases the ionic conductivity of gel polymer electrolytes(GPEs).It has been demonstrated that post-cross-linking of the precursor membranes increa ses the rigidity of the nanofibers,which allows the polymer film to be dimensionally sta ble up to 260℃while maintaining superior electrochemical *** obtained cross-linked GPEs(CGPEs)showed high ionic conductivity up to 4.53×10^(-3)S·cm^(-1).With the CGPE-25,the assembled li/liFeP04 half cells exhibited good rate capability and maintained a capacity of 99.4%and a coulombic efficiency of99.3%at 0.1 *** results suggest that the combination of electrospinning technique and post-cross-linking is an effective method to construct polymer electrolytes with high thermal stability and steadily decent electrochemical performance,particularly useful for lithium-ion battery applications that require high-temperature usage.

关键词： Electrospinning Cross-linked Gel polymer electrolytes lithium-ion batteries

Ultrastable graphene isolated Au Ag nanoalloy for SERS biosensing and photothermal therapy of bacterial infection

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Chinese Chemical Letters 2024年第3期35卷 198-203页

作者： Shengkai li Zhiyang li qing Hao Shen Wang Yanxia Yang Jieqiong Xu Zhiwei yin liang Zhang Zhuo Chen Molecular Science and Biomedicine Laboratory(MBL) State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringCollege of BiologyAptamer Engineering Center of Hunan ProvinceHunan UniversityChangsha 410082China School of Chemistry and Chemical Engineering/Guangzhou Key Laboratory for Clean Energy and Materials/Key Laboratory for Water Quality and Conservation of the Pearl River Delta Ministry of EducationGuangzhou UniversityGuangzhou 510006China

Plasmonic metal nanomaterials with intrinsic surface–enhanced Raman scattering(SERS)and photothermal properties,especially AuAg nanoalloys with both the outstanding merits of Au and Ag nanocrystals,show huge application prospects in bacterial ***,the direct exposure of AuAg nanoalloys in external conditions probably cause undesirable reactions and poisonous metal ion leakage during SERS detection and photothermal antibacterial therapy process,which severely hinder bacterial theranostics ***,we report an ultrastable graphene–isolated AuAg nanoalloy(GAA)with AuAg core confined in few–layer graphitic shell as a versatile platform for bacterial detection and *** encapsulation of graphene ensures the good stability of AuAg core,that its superior SERS and photothermal properties are therefore further *** is used for SERS detection of two vital bacterial biomarkers(including corrosive cyanide and pyocyanin),exhibiting good SERS quantitative and multiplexing *** is further used for photothermal antibacterial therapy application,and ultrahigh antibacterial efficacies for both Gram–negative Escherichia coli and Gram–positive Staphylococcus aureus are achieved under 808 nm laser *** work proposes a valuable method to develop robust bacterial theranostic platform.

关键词： Localized surface plasmon resonance Graphitic shell isolated AuAg nanoalloy(GAA) Surface–enhanced Raman scattering(SERS) Bacterial biomarker detection Photothermal antibacterial therapy