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Activity coefficient of NiO in SiO_(2)-saturated MnO–SiO_(2)slag and Al_(2)O_(3)-saturated MnO–SiO_(2)–Al_(2)O_(3)slag at 1623 K

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International Journal of Minerals,Metallurgy and Materials 2022年第2期29卷 248-255页

作者： Guoxing Ren Songwen Xiao Caibin liao Zhihong Liu School of Metallurgy and Environment Central South UniversityChangsha 410083China Changsha Research Institute of Mining&Metallurgy Co. LtdChangsha 410012China

As a part of the fundamental study related to the reduction smelting of spent lithium-ion batteries and ocean polymetallic nodules based on MnO–SiO_(2)slags,this work investigated the activity coefficient of NiO in SiO_(2)-saturated Mn O–Si O_(2)slag and Al_(2)O_(3)-saturated Mn O–SiO_(2)–Al_(2)O_(3)slag at 1623 K with controlled oxygen partial pressure levels of 10^(-7),10^(-6),and 10^(-5)*** showed that the solubility of nickel oxide in the slags increased with increasing oxygen partial *** nickel in the Mn O–Si O_(2)slag and Mn O–Si O_(2)–Al_(2)O_(3)slag existed as Ni O under experimental *** addition of Al_(2)O_(3)in the Mn O–Si O_(2)slag decreased the dissolution of nickel in the slag and increased the activity coefficient of Ni ***,the activity coefficient of Ni O(γN_(i O)),which is solid Ni O,in the Si O_(2)saturated Mn O–Si O_(2)slag and Al_(2)O_(3)saturated Mn O–Si O_(2)–Al_(2)O_(3)slag at 1623 K can be respectively calculated asγN_(i O)=8.58w(Ni O)+3.18 andγN_(i O)=11.06w(Ni O)+4.07,respectively,where w(Ni O)is the Ni O mass fraction in the slag.

关键词： nickel equilibrium MnO–SiO_(2)slag MnO–SiO_(2)–Al_(2)O_(3)slag activity coefficient spent lithium-ion batteries recovery polymetallic nodules

TEG在椎-基底动脉支架植入术后患者抗血小板治疗中的应用

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国际医药卫生导报 2024年第13期30卷 2186-2190页

作者：张胜高丽丽廖远生福建中医药大学附属第二人民医院神经内科福州350003

目的比较运用血栓弹力图(TEG)结果指导的抗血小板聚集治疗与常规抗血小板聚集治疗在行椎-基底动脉支架植入术后患者中的临床疗效。方法采用回顾性分析,选取2018年7月至2023年6月于福建中医药大学附属第二人民医院神经内科住院治疗的69... 详细信息

目的比较运用血栓弹力图(TEG)结果指导的抗血小板聚集治疗与常规抗血小板聚集治疗在行椎-基底动脉支架植入术后患者中的临床疗效。方法采用回顾性分析,选取2018年7月至2023年6月于福建中医药大学附属第二人民医院神经内科住院治疗的69例行椎-基底动脉支架植入术后患者为研究对象,术前均给予阿司匹林肠溶片(100 mg/d,qd)、氯吡格雷片(75 mg/d,qd)口服。术后根据TEG参数结果调整抗血小板治疗的患者为调整组(53例),未进行调整的常规双联抗血小板治疗患者为对照组(16例)。调整组中,男43例,女10例,年龄(68.53±11.43)岁;根据TEG参数结果是否达标进行调整抗血小板治疗方案,若花生四烯酸(AA)抑制率未达标,将阿司匹林肠溶片更换为吲哚布芬片(100 mg,bid)或西洛他唑片(100 mg,bid);若二磷酸腺苷(ADP)抑制率未达标,将氯吡格雷片更换替格瑞洛片(90 mg,bid),治疗6个月。对照组中,男12例,女4例,年龄(68.50±9.28)岁;继续口服阿司匹林肠溶片(100 mg,qd)+硫酸氢氯吡格雷片(75 mg,qd)治疗,治疗6个月。比较两组治疗前后的总胆固醇(CHOL)、高密度脂蛋白(HDL-C)、低密度脂蛋白(LDL-C)、三酰甘油(TG)、肌酐(Cr)、尿酸(ua)、纤维蛋白原(FIB)水平,术后6个月内缺血、出血、支架内再狭窄、死亡事件的发生情况。采用独立样本t检验、Mann-Whitney U检验、χ^(2)检验和Fisher确切概率法。结果两组患者治疗前与治疗6个月后的CHOL、HDL-C、LDL-C、TG、Cr、ua、FIB水平比较,差异均无统计学意义(均P>0.05)。术后6个月内,两组均无死亡事件发生;调整组的缺血事件发生率为18.87%(10/53)、支架内再狭窄发生率为7.55%(4/53),均低于对照组的68.75%(11/16)、31.25%(5/16),差异均有统计学意义(χ^(2)=12.184、P<0.001,χ^(2)=4.177、P=0.041);调整组发生1例(1.89%)脑出血,对照组无发生脑出血事件,两组比较差异无统计学意义(P=1.000)。结论运用TEG结果指导椎-基底动脉支架植入术后患者的个体化抗血小板治疗较常规标准治疗临床预后效果更好。

关键词：血栓弹力图椎-基底动脉支架植入术抗血小板治疗

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桑黄游离酚提取物体外降尿酸活性研究

食品与发酵工业 2024年第10期50卷 119-126页

作者：赵克芳肖阳邢东旭黎尔纳杨琼邹宇晓庞道睿廖森泰广东海洋大学食品科技学院广东湛江524088 广东省农业科学院蚕业与农产品加工研究所/农业农村部功能食品重点实验室/广东省农产品加工重点实验室广东广州510610

为研究桑黄游离酚提取物体外降尿酸活性,以野生瓦宁木层孔菌、栽培粗毛纤孔菌、栽培瓦宁木层孔菌和野生粗毛纤孔菌4个不同来源的桑黄为研究对象,分析不同来源桑黄游离酚提取物对黄嘌呤氧化酶的抑制活性,及其在高尿酸细胞模型中的降尿酸... 详细信息

为研究桑黄游离酚提取物体外降尿酸活性,以野生瓦宁木层孔菌、栽培粗毛纤孔菌、栽培瓦宁木层孔菌和野生粗毛纤孔菌4个不同来源的桑黄为研究对象,分析不同来源桑黄游离酚提取物对黄嘌呤氧化酶的抑制活性,及其在高尿酸细胞模型中的降尿酸作用。筛选出降尿酸活性强的桑黄游离酚提取物,并通过超高效液相色谱-串联质谱(ultra performance liquid chromatography/tandem mass spectrometry,UPLC-MS/MS)对其降尿酸活性物质进行分析。研究结果表明,栽培粗毛纤孔菌、栽培瓦宁木层孔菌和野生粗毛纤孔菌的游离酚提取物对黄嘌呤氧化酶具有显著的抑制作用(P<0.05),IC_(50)值分别为(94.63±2.73)μg/mL、(99.69±2.50)μg/mL和(106.32±5.06)μg/mL;栽培粗毛纤孔菌和野生瓦宁木层孔菌的游离酚提取物可显著抑制高尿酸细胞模型中尿酸生成(P<0.05)。进一步通过UPLC-MS/MS分析活性较强的栽培粗毛纤孔菌游离酚中主要成分发现,其黄酮类物质中金丝桃苷、表儿茶素、茶黄素、地奥司明及木犀草苷等,可能是其降尿酸的主要活性物质。该研究可为桑黄降尿酸产品的研究与开发提供部分理论参考。

关键词：桑黄粗毛纤孔菌黄酮黄嘌呤氧化酶降尿酸

临床医生循证医学能力自我评估量表(EBP-KAPF)的汉化与信效度验证

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中华预防医学杂志 2024年第4期58卷 481-488页

作者：闫温馨廖姣姣邵祺睿曾琳赵一鸣刘珏陶立元北京大学公共卫生学院流行病与卫生统计学系北京100191 北京大学第三医院临床流行病学研究中心北京100191

目的:对循证医学能力自我评估(EBP-KAPF)量表进行汉化并评价中文版量表的信度和效度。方法:通过翻译、调适、回忆、审阅和预调查等步骤确定中文版EBP-KAPF量表。2022年7-8月采用方便抽样选取28个省(自治区、直辖市)250名临床工作者为对... 详细信息

目的:对循证医学能力自我评估(EBP-KAPF)量表进行汉化并评价中文版量表的信度和效度。方法:通过翻译、调适、回忆、审阅和预调查等步骤确定中文版EBP-KAPF量表。2022年7-8月采用方便抽样选取28个省(自治区、直辖市)250名临床工作者为对象,采用自制问卷,调查对象的基本情况、《循证医学》课程及相关软件学习和使用情况等,采用中文版EBP-KAPF量表调查临床医生循证医学能力。对中文版EBP-KAPF进行条目分析、效度评价和信度评价。结果:中文版EBP-KAPF量表包括知识掌握、态度、个人应用和未来使用4个维度26个条目。共发出调查表265份(包括自制问卷和中文版EBP-KAPF量表),获得有效调查表250份,总有效率94.3%。中文版EBP-KAPF量表总得分为(102.85±17.48)分,知识掌握、态度、个人应用和未来使用子量表得分分别为(27.22±4.47)、(13.56±7.70)、(20.07±6.78)和(42.00±9.00)分;除量表条目16外,各条目均与量表总得分相关,相关系数范围为0.456~0.828;删除量表条目16后,其他25个条目决断值范围为4.287~18.262( Pua)为0.615,平均S-CVI(S-CVI/Ave)值为0.952,校正概率( K*)为0.87~1.00;验证性因子分析结果显示结构拟合优度较好(比较拟合指数CFI=0.962,非归准适配指数TLI=0.957,近似误差均方根RMSEA=0.060,χ^(2)/ df=1.889);判别效度分析显示:年龄、《循证医学》课程学习情况、相关软件使用情况不同的临床医生EBP-KAPF总得分差异有统计学意义( P<0.05)。删除条目16后,25条目中文版EBP-KAPF的Cronbach′s α系数为0.893,各维度Guttman分半系数分别为0.915、0.901、0.812和0.906,条目得分相关系数范围分别为0.902~0.982、0.507~0.953、0.517~0.744和0.632~0.986。结论:中文版EBP-KAPF量表简明易懂、无歧义,具有良好的效度和信度。

关键词：循证医学医师评价研究量表

Universal cooling patterns of the butterfly wing scales hierarchy deduced from the heterogeneous thermal and structural properties of Tirumala limniace(Lepidoptera:Nymphalidae,Danainae)

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Insect Science 2022年第6期29卷 1761-1772页

作者： Chu-Fei Tang Fan-Fan Li Ye Cao Huai-Jian liao Institute of Leisure Agriculture Jiangsu Academy of Agricultural SciencesNanjingChina Key Laboratory of Urban Agriculture Ministry of Agriculture and Rural AffairsShanghaiChina

The radiative cooling of butterfly wing scales hierarchy has great value in understanding how poikilotherms adapt to the environment and developing bionic ***,it remains unclear what the cooling system is like and how the vari-ation of hierarchy affects the cooling ***,the correlation between the variations of the structure and emissivity of scale hierarchy is thoroughly investigated in Tirumala limniace(Cramer,1775),whose thermal properties are highly heteroge-neous among different wings and regions but similar between males and ***-terns were deduced from the biological and model simulation *** scale hierarchy varies at the micro-to nanolevel on both surface and section,correspond-ing to the variating *** on wing veins and margins have large nanostruc-tured units with small lumens and are distinctly thickened,which bring extraordinarily high *** variations of light and dark scales,respectively,lead to the high emissivity of the middle region of wings and the front ***,the elevation of the inner surface area and the thickness of the chitin is the key to enhancing the cooling *** the first time,the effects of the variation of hierarchy toward emissivity of the mid-infrared spectrum are systematically *** is demonstrated that wing scales integrally differentiate in coping with the heterogeneous cooling needs,which may benefit in balancing multifunctions and the development toward the adap-tation to the abiotic *** study provides insights into the comprehensive thermoregulation system of butterflies and the further development of radiative cooling materials.

关键词： butterfly emissivity heterogeneous hierarchy radiative cooling wing scales

复方木姜叶柯活性茶对高尿酸血症肾病小鼠尿酸和肾功能的影响

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中国比较医学杂志 2024年第1期34卷 60-68页

作者：陈园园曾亚南杜小浪慕泽泾廖成东章常华曹岚江西中医药大学南昌330004 井冈山市木姜叶柯农林开发有限公司江西井冈山343604

目的探究复方木姜叶柯活性茶对高尿酸血症肾病小鼠的尿酸和肾功能的影响,为开发治疗高尿酸血症肾病的药物和功能性食品提供实验依据。方法采用氧嗪酸钾联合腺嘌呤建立高尿酸血症肾病小鼠模型。小鼠随机分为空白组、模型组、阳性组(10 mg... 详细信息

目的探究复方木姜叶柯活性茶对高尿酸血症肾病小鼠的尿酸和肾功能的影响,为开发治疗高尿酸血症肾病的药物和功能性食品提供实验依据。方法采用氧嗪酸钾联合腺嘌呤建立高尿酸血症肾病小鼠模型。小鼠随机分为空白组、模型组、阳性组(10 mg/(kg·d))、复方茶高、中、低剂量组(10 g/(kg·d))、3.33 g/(kg·d)、1.11 g/(kg·d)。末次给药1 h后,取尿液,采用CBB法测定尿蛋白(UP),脲酶法检测尿液尿素氮(UUN);眼眶取血,采用酶比色法检测尿酸(ua)含量,脲酶法检测血清尿素氮(BUN)含量,酶联免疫法检测白细胞介素6(IL6)、肿瘤坏死因子(TNF-α)含量;取肾组织,荧光定量分析法检测尿酸盐转运蛋白1(URAT1)及葡萄糖转运体9(GLUT9)含量,HE染色观察肾组织病理变化情况。结果与空白组相比,模型组小鼠中UP、UUN、ua、BUN、IL-6、URAT1、GLUT9及TNF-α水平显著增高(Pua、BUN、URAT1、IL-6、TNF-α水平显著降低(Pua、BUN、IL-6、URAT1、TNF-α水平显著降低(Pua、IL-6、URAT1、GLUT9、TNF-α水平显著降低(Pua、IL-6、URAT1、BUN、TNF-α、GLUT9水平显著降低(P<0.01,P<0.05)。结论复方木姜叶柯活性茶能降低高尿酸血症肾病小鼠的尿酸,且对肾组织具有一定的保护作用,其机制可能与抑制尿酸重吸收有关,具体机制有待进一步研究。

关键词：复方木姜叶柯活性茶高尿酸血症肾病尿酸肾功能尿酸转运蛋白

木姜叶柯叶改善小鼠高尿酸血症肾病作用及其机制

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医药导报 2024年第6期43卷 855-861页

作者：宋针珍梁芳陈佳冯仁娜潘源廖成东章常华曹岚江西中医药大学药学院南昌330004 豫章师范学院体育学院南昌330103 井冈山市木姜叶柯农林开发有限公司井冈山343600 江西中医药大学中药资源与民族药研究中心南昌330004

目的探究木姜叶柯叶对小鼠高尿酸血症肾病(HN)肾功能和炎症的改善作用及潜在治疗机制。方法采用腺嘌呤和氧嗪酸钾联合给药建立HN模型,将小鼠随机分成正常对照组,模型对照组,苯溴马隆组,木姜叶柯叶大、中、小剂量组,分别给予不同药物,每... 详细信息

目的探究木姜叶柯叶对小鼠高尿酸血症肾病(HN)肾功能和炎症的改善作用及潜在治疗机制。方法采用腺嘌呤和氧嗪酸钾联合给药建立HN模型,将小鼠随机分成正常对照组,模型对照组,苯溴马隆组,木姜叶柯叶大、中、小剂量组,分别给予不同药物,每周记录1次小鼠体质量,第21天采集并检测各组血清或尿液中尿酸(ua)、肌酐(Cr)、尿蛋白(UP)和血液尿素氮(BUN)、尿液尿素氮(UUN)及肿瘤坏死因子-α(TNF-α)、白细胞介素-6(IL-6)含量;苏木精-伊红(HE)染色观察小鼠肾组织损伤情况;实时荧光定量聚合酶链反应(RT-PCR)测定肾组织中ABC转运蛋白G家族成员2(ABCG2)、尿酸转运蛋白1(URAT1)、葡萄糖转运体9(GLUT9)、核转录因子NF-κB p50(κB p50)。结果与正常对照组相比,模型对照组小鼠体质量在给造模药第2周后明显降低(Pua、Cr、UP、BUN、UUN、TNF-α、IL-6含量及肾组织GLUT9、κB p50 mRNA表达含量显著升高(Pua水平明显降低(P<0.05),中剂量组肾脏ABCG2 mRNA表达显著升高(P<0.01),小剂量组URAT1 mRNA表达显著降低(P<0.01)。结论木姜叶柯叶对小鼠高尿酸血症肾病有一定改善作用,其机制可能与调控肾脏尿酸转运蛋白、改善肾功能和抗炎有关。

关键词：木姜叶柯叶高尿酸血症肾病炎症

A portable viable Salmonella detection device based on microfluidic chip and recombinase aided amplification

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Chinese Chemical Letters 2023年第2期34卷 268-273页

作者： Wuzhen Qi Siyuan Wang Lei Wang Xinge Xi Shangyi Wu Yanbin Li Ming liao Jianhan Lin Key Laboratory of Agricultural Information Acquisition Technology Ministry of Agriculture and Rural AffairsChina Agricultural UniversityBeijing 100083China Department of Biological and Agricultural Engineering University of ArkansasFayetteville 72701United States College of Veterinary medicine South China Agricultural UniversityGuangzhou 510642China

creening of foodborne pathogens is important to prevent contaminated foods from their supply chains.n this study, a portable detection device was developed for rapid, sensitive and simple detection of viable almonella using a finger-actuated microfluidic chip and an improved recombinase aided amplification (RAA) assay. Improved propidium monoazide(PMAxx) was combined with RAA to enable this device to distinguish viable bacteria from dead ones. The modification of PMAxx into dead bacteria, the magnetic xtraction of nucleic acids from viable bacteria and the RAA detection of extracted nucleic acids were performed using the microfluidic chip on its supporting device by finger press-release operations. The fluorescent signal resulting from RAA amplification of the nucleic acids was collected using a USB camera nd analyzed using a self-developed smartphone App to quantitatively determine the bacterial concenration. This device could detect Salmonella typhimurium in spiked chicken meats from 1.3 × 10^(2) CFU/m L o 1.3 × 10^(7) CFU/m L in 2 h with a lower detection limit of 130 CFU/m L, and has shown its potential for on-site detection of foodborne pathogens.

关键词： Finger-actuated microfluidic chip PMAxx Recombinase aid amplification Smartphone App Viable bacterial detection

The altered expression of inflammation-related microRNAs with microRNA-155 expression correlates with Th17 differentiation in patients with acute coronary syndrome

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Cellular & Molecular Immunology 2011年第6期8卷 486-495页

作者： Rui Yao Yulan Ma Youyou Du Mengyang liao Huanhuan Li Wei Liang Jing Yuan Zhijun Ma Xian Yu Hong Xiao Yuhua liao Laboratory of Cardiovascular Immunology Institute of CardiologyUnion HospitalHuazhong University of Science and TechnologyWuhanChina Department of Cardiology the First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina Department of General Surgery Union HospitalHuazhong University of Science and TechnologyWuhanChina Pharmaceutical Preparation Section the First Hospital of Wuhan CityWuhanChina

MicroRNAs(miRNAs)are a novel class of small,non-coding RNAs that play a significant role in both inflammatory and cardiovascular *** cells,especially T helper(Th)cells,are critical in the development of atherosclerosis and the onset of acute coronary syndrome(ACS).To assess whether inflammation-related miRNAs(such as miR-155,146a,21,125a-5p,125b,31)are involved in the imbalance of Th cell subsets in patients with ACS,we measured the expression of related miRNAs in patients with acute myocardial infarction(AMI),unstable angina(ua),stable angina(SA)and chest pain syndrome(CPS);analyzed the relationship between miRNA expression and the frequency of Th cell subsets;and observed the co-expression of miR-155 and IL-17A in peripheral blood mononuclear cells(PBMCs)of patients with *** results showed that the expression of miR-155 in the PBMCs of patients with ACS was decreased by approximately 60%,while the expression of both miR-21 and miR-146a was increased by approximately *** expression patterns of miRNAs in plasma correlated with those in PBMCs,except for miR-21,which was increased by approximately sixfold in the AMI group and showed no significant difference between the ua group and the CPS *** also found that the expression of miR-155 inversely correlated with the frequency of Th17 cells(r520.896,P,0.01)and that miR-155 was co-expressed with IL-17A in patients with *** conclusion,our study revealed the expression patterns of inflammation-related miRNAs in patients with ACS and found that miR-155 may be associated with Th17 cell differentiation.

关键词： acute coronary syndrome microRNA-155 Th17