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富含玉米黄质色素橄榄油延缓D-半乳糖诱导的小鼠衰老作用

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现代食品科技 2024年第6期40卷 66-73页

作者：叶文斌陈文东王昱何九军黄新异邸多隆陇南师范高等专科学校农林技术学院甘肃成县742500 中国科学院兰州化学物理研究所中科院西北特色植物资源化学重点实验室和甘肃省天然药物重点实验室甘肃兰州730000

该文研究了富含玉米黄质色素橄榄油(Olive Oil Rich Zeaxanthin,OZT)对衰老小鼠的影响。将亚急性衰老模型造模成功的小鼠分为模型组、OZT高中低处理组、橄榄油组(Olive Oil,OL)、维生素E阳性(Vitamin E,VE)对照组,以生理盐水为CK(0)组... 详细信息

该文研究了富含玉米黄质色素橄榄油(Olive Oil Rich Zeaxanthin,OZT)对衰老小鼠的影响。将亚急性衰老模型造模成功的小鼠分为模型组、OZT高中低处理组、橄榄油组(Olive Oil,OL)、维生素E阳性(Vitamin E,VE)对照组,以生理盐水为CK(0)组。连续灌胃28 d后,分析不同剂量OZT对衰老小鼠的体重、脾脏和胸腺指数、耐缺氧和抗疲劳作用、血清中SOD(Superoxide dismutase)、CAT(Catalase)、GSH-Px(Glutathione Peroxidase)、ALT(Alanine Aminotransferase)、AST(Aspartate Aminotransferase)活性和MDA(Malondialdehyde)、IL-2(Interleukin-2)、IL-4、IL-10、IFN-γ(Interferon-γ)生成水平等指标的影响。结果显示,建模灌喂给药28 d后,Model组体质量与CK组小鼠相比存在极显著差异(P0.05);OZT还能降低衰老小鼠血清中的ALT、AST、SOD、CAT和GSH-Px的活性,提高IL-2、IL-4、IL-10和IFN-γ生成,降低MDA含量,且OZT高剂量组效果显著优于OL组,与VE接近。综上,OZT对D-半乳糖致亚急性衰老动物模型有很好的干预效果,能有效提高小鼠机体抗氧化能力,延长耐缺氧时间和提高抗疲劳作用,延缓衰老的作用。

关键词：玉米黄质色素橄榄油衰老小鼠影响

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富含羟基酪醇和玉米黄质色素橄榄油对衰老小鼠影响的比较

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甘肃农业大学学报 2024年第3期59卷 10-16,30页

作者：叶文斌陈文东王昱何九军黄新异邸多隆陇南师范学院农林技术学院甘肃成县742500 中国科学院兰州化学物理研究所中科院西北特色植物资源化学重点实验室甘肃省天然药物重点实验室甘肃兰州730000

【目的】研究富含羟基酪醇橄榄油(olive oil rich in hydroxyl tyrosol,OHT)和富含玉米黄质色素橄榄油(olive oil rich in zeaxanthin,OZT)对衰老小鼠的影响。【方法】利用0.5 mL/10g剂量颈部皮下注射5%的D-半乳糖(D-galactose)溶液42 ... 详细信息

【目的】研究富含羟基酪醇橄榄油(olive oil rich in hydroxyl tyrosol,OHT)和富含玉米黄质色素橄榄油(olive oil rich in zeaxanthin,OZT)对衰老小鼠的影响。【方法】利用0.5 mL/10g剂量颈部皮下注射5%的D-半乳糖(D-galactose)溶液42 d构建亚急性衰老模型,建模成功后,将小鼠随机分成5组,分别为模型组(Model group)、维生素E对照组(VE group)、普通橄榄油组(olive oil group,OL)、OHT组和OZT组,以生理盐水对照组CK(0)。连续灌胃28 d后,检测小鼠体质量、血清中超氧化物歧化酶(superoxide dismutase,SOD)、过氧化氢酶(catalase,CAT)、谷胱甘肽过氧化物酶(glutathione peroxidase,GSH-Px)、丙氨酸氨基转移酶(alanine aminotransferase,ALT)、天门冬酸氨基转移酶(aspartate aminotransferase,AST)活性和丙二醛(malondialdehyde,MDA)、白细胞介素-2(IL-2)、和干扰素-γ(IFN-γ)生成水平等指标的影响,观察肝组织形态学变化。【结果】D-半乳糖诱导的衰老小鼠模型中,OHT和OZT均能控制衰老小鼠体质量(P<0.05),降低血清中的SOD、CAT、GSH-Px、ALT和AST的活性(P<0.05,P<0.01),能显著提高IL-2和IFN-γ生成(P<0.05,P<0.01),降低MDA含量(P<0.05,P<0.01),肝脏病理变化得到改善,OZT干预效果显著优于OHT。【结论】OHT和OZT对D-半乳糖致亚急性衰老动物模型均有很好的干预效果,能有效提高小鼠机体抗氧化能力,延缓衰老的作用。

关键词：羟基酪醇玉米黄质色素橄榄油衰老小鼠抗氧化抗衰老

橄榄苦苷对LPS诱导小鼠视网膜损伤的保护作用

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中国兽医学报 2024年第5期44卷 1019-1025,1031页

作者：陈文东朱秀娟叶文斌王昱黄新异邸多隆徐永平陇南师范高等专科学校农林技术学院甘肃成县742500 中国科学院兰州化学物理研究所、中国科学院西北特色植物资源化学重点实验室和甘肃省天然药物重点实验室甘肃兰州730000 西北农林科技大学动物医学学院陕西杨凌712100

为研究橄榄苦苷(oleuropein, OP)对LPS诱导小鼠视网膜损伤的保护作用,将SPFKM小鼠随机分成5组,分别为LPS模型组(LPS)、对照组(Control)、OP高、中、低质量浓度(800、400、200 mg/kg)处理组,连续灌胃21 d,从第14天开始,各组小鼠灌胃30 mi... 详细信息

为研究橄榄苦苷(oleuropein, OP)对LPS诱导小鼠视网膜损伤的保护作用,将SPFKM小鼠随机分成5组,分别为LPS模型组(LPS)、对照组(Control)、OP高、中、低质量浓度(800、400、200 mg/kg)处理组,连续灌胃21 d,从第14天开始,各组小鼠灌胃30 min后,在异氟烷气体辅助麻醉下,小鼠腹腔注射2.0 mg/kg LPS,对照组小鼠腹腔注射2.0 mg/kg生理盐水,连续7 d,建模完成后,检测小鼠血清中超氧化物歧化酶(superoxide dismutase, SOD)、过氧化氢酶(catalase, CAT)、谷胱甘肽过氧化物酶(glutathione peroxidase, GSH-Px)活性及白细胞介素-1β(IL-1β)和肿瘤坏死因子-α (TNF-α)含量,采用免疫组化SP法检测甘油三脂脂肪酶(PNPLA2)在小鼠视网膜各层结构上的分布特点并观察视网膜组织形态学变化。结果显示,OP使小鼠血清中SOD、CAT和GHS-Px活性显著升高(P<0.01),IL-1β和TNF-α含量下降(P<0.05),视网膜中PNPLA2表达量升高(P<0.05,P<0.01);OP各剂量组均能提高SOD、CAT和GHS-Px活性,降低IL-1β和TNF-α含量,改善LPS对小鼠视网膜的病理损伤,提高视网膜中PNPLA2表达量,具有保护LPS诱导视网膜损伤的作用。

关键词：橄榄苦苷脂多糖视网膜小鼠

Mechanism regulating the inhibition of lung cancer A549 cell proliferation and structural analysis of the polysaccharide Lycium barbarum

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Food Bioscience 2022年第3期47卷 679-687页

作者： Wenjin Ma Yanbing Zhou Wenjin Lou Bo Wang Bing Li Xiaofen Liu Jiajun Yang Bo Yang Jianfei Liu duolong di CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou730000China The Institute of Gansu Province Light Industrial Scientific Research Lanzhou730000China Gansu Provincial Academic Industrial for Medical Research Lanzhou730000China School of Life Science and Engineering Lanzhou University of TechnologyGansu ProvinceLanzhou730050China

The water-soluble polysaccharide LBP-1 was isolated and characterized from Lycium barbarum ***-1 was mainly composed of arabinose,galactose,glucose,xylose,mannose at a molar ratio of 37.53:28.08:14.72:7.83:4.50,*** on nuclear magnetic resonance(NMR)and methylation analysis,the backbone of LBP-1 was speculated in theα-L-Ara(1→[5-α-L-Ara(1→3)-β-D-Galp-(1→]n→4)-α-D-Galp-(1[→5-α-L-Ara(1]n[→6)-β-D-Galp-(1→4)-β-D-Galp-(1→]n,and the side chains of LBP-1 were in theα-L-Ara(1→3)-β-D-Galp-(1→6 *** results showed that LBP-1 inhibited the growth of cancer A549 cells through cell cycle arrest and apoptosis,with an IC50 value of 42.5μg/*** addition,LBP-1 altered the expression of Cyclin D1,Cyclin D3,and CDK 2,thus blocking the cell cycle in G0/G1 phase,reducing cell migration,and regulating the PI3K/Akt/mTOR signaling pathway to induce apoptosis.

关键词： Lycium barbarum polysaccharide Lung cancer cell Apoptosis Cell cycle Structural analysis

Study on pharmacokinetics and tissue distribution of the isocorydine derivative (AICD) in rats by HPLC-DAD method

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Acta Pharmaceutica Sinica B 2015年第3期5卷 238-245页

作者： Yali Chen Qian Yan Mei Zhong Quanyi Zhao Junxi Liu duolong di Jinxia Liu Institute of Medicinal Chemistry School of PharmacyLanzhou University Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province Lanzhou Institute of Chemical PhysicsChinese Academy of Sciences Institute of Biology Gansu Academy of Sciences

A simple and effective high-performance liquid chromatography with diode-array detection method coupled with a liquid-liquid extraction pretreatment has been developed for determining the pharmacokinetics and tissue distribution of a novel structurally modified derivative(8-acetaminoisocorydine) of *** to the in vivo experiments data calculations by DAS 2.0 software,a two-compartment metabolic model was suitable for describing the pharmacokinetic of 8-acetaminoisocorydine in rats.8-Acetamino-isocorydine was absorbed well after oral administration,and the absolute bioavailability was 76.5%.The half-life of 8-acetamino-isocorydine after intravenous and oral administration was 2.2 h and 2.0 h,*** vivo,8-acetamino-isocorydine was highly distributed in the lungs,kidney and liver;however,relatively little entered the brain,suggesting that 8-acetaminoisocorydine could not easily pass through the blood brain *** work describes the first characterization of the pharmacokinetic parameters and tissue distribution of *** acquired data will provide useful information for the in vivo pharmacology of 8-acetaminoisocorydine,and can be applied to new drug research.

关键词： Alkaloids Pharmacokinetics Tissue distribution High-performance liquid chromatography with diode-array detection 8-Acetamino-isocorydine

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枸杞属植物中生物碱类成分研究进展

科学通报 2022年第4期67卷 332-350页

作者：刘建飞巩媛杨军丽邸多隆中国科学院兰州化学物理研究所中国科学院西北特色植物资源化学重点实验室/甘肃省天然药物重点实验室兰州730000 中国科学院大学北京100049

枸杞属(Lycium L.)属于茄科(Solanaceae)茄族(Solaneae)枸杞亚族(Lyciinae),在我国有7个种和3个变种.其中宁夏枸杞(*** L.)的果实“枸杞子”是我国名贵中药材,具有滋补肝肾、益精明目的传统功效,也是享誉古今中外的滋补佳品.枸杞属植物... 详细信息

枸杞属(Lycium L.)属于茄科(Solanaceae)茄族(Solaneae)枸杞亚族(Lyciinae),在我国有7个种和3个变种.其中宁夏枸杞(*** L.)的果实“枸杞子”是我国名贵中药材,具有滋补肝肾、益精明目的传统功效,也是享誉古今中外的滋补佳品.枸杞属植物具有调节免疫力、抗氧化、缓解体力疲劳、抗阿尔茨海默病、抗败血症、保护生殖系统、保护神经系统、防治眼部疾病、增强造血功能、提高性能力等功效.主要化学成分包括多糖、类胡萝卜素、黄酮、生物碱、苯丙素以及其他小分子和微量元素,其中生物碱被认为是主要活性成分之一.本文主要针对枸杞属植物中已报道的124个生物碱类化学成分及其生物活性进行总结分析和展望,为枸杞传统药用功效的现代药物研究和临床应用,以及枸杞属植物资源的高值化可持续利用提供科学参考.

关键词：枸杞属生物碱分子结构生物活性

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富含羟基酪醇橄榄油对高血脂小鼠的影响

食品科学 2023年第21期44卷 144-150页

作者：叶文斌陈文东王昱张凯黄新异邸多隆陇南师范高等专科学校农林技术学院甘肃成县742500 中国科学院兰州化学物理研究所甘肃兰州730000

研究富含羟基酪醇橄榄油(olive oil rich in hydroxyl tyrosol,OHT)对高血脂小鼠血糖和血脂的影响。以脂肪乳剂和75%(体积分数)的蛋黄乳灌胃构建小鼠高血糖高血脂模型,将建模成功的小鼠随机分为高血脂模型组,OHT高、中、低剂量(200、100... 详细信息

研究富含羟基酪醇橄榄油(olive oil rich in hydroxyl tyrosol,OHT)对高血脂小鼠血糖和血脂的影响。以脂肪乳剂和75%(体积分数)的蛋黄乳灌胃构建小鼠高血糖高血脂模型,将建模成功的小鼠随机分为高血脂模型组,OHT高、中、低剂量(200、100、50 mg/kg m_(b))组,普通橄榄油(olive oil,OL)组,菲勒贝特阳性对照(philbert,PL)组,以生理盐水为CK(0)组。连续灌胃给药28 d,分析OHT对高血脂小鼠空腹血糖(fasting blood glucose,FBG)、糖化血红蛋白(glycated hemoglobin,HbA1c)、总胆固醇(total cholesterol,TC)、甘油三酯(triglyceride,TG)、高密度脂蛋白(high-density lipoprotein,HDL)、低密度脂蛋白(low-density lipoprotein,LDL)、总胆红素(total bilirubin,TBIL)、总胆汁酸(total bile acid,TBA)、丙氨酸氨基转移酶(alanine aminotransferase,ALT)、天冬酸氨基转移酶(aspartate aminotransferase,AST)、γ-氨酰基转移酶(gammaammonia acyltransferase,GGT)、碱性磷酸酶(alkaline phosphatase,ALP)水平的影响,并对OHT开展急慢性毒理研究。结果显示,与模型组相比,OHT能有效降低高血脂小鼠的FBG、TC、TG、LDL、TBIL、TBA浓度及HbAlc相对含量,提高HDL浓度,对ALT、AST、GGT和ALP活性具有很好的抑制作用,能够改善血糖血脂代谢紊乱,还具有降低体质量的效果,且呈剂量效应关系。OHT对正常小鼠无急慢性毒理作用,能提高小鼠血清超氧化物歧化酶(superoxide dismutase,SOD)、过氧化氢酶(catalase,CAT)和谷胱甘肽过氧化物酶(glutathione peroxidase,GSH-Px)活力,降低丙二醛(malondialdehyde,MDA)浓度,提高小鼠的抗氧化能力,控制小鼠体质量。综上,OHT对高血脂小鼠具有降血糖、血脂作用,且无毒。本研究结果可为利用橄榄油开发降血脂产品提供参考。

关键词：羟基酪醇橄榄油高血脂小鼠降血糖降血脂急性和慢性毒理

Effect of Occupational Manganese Exposure on Uric Acid Levels in Human Urine

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Biomedical and Environmental Sciences 2011年第3期24卷 222-227页

作者： SUN XiaoMing LIU YeWei WANG ZhenQuan LI HongBing LIU Yun di duolong Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou 730000 Gansu China Graduate University of the Chinese Academy of Sciences Beijing 100049 China Institute of Nutrition and Food Hygiene School of Public Health Lanzhou University Lanzhou 730000 Gansu China

Objective To investigate the effect of long-term and low-level occupational Mn exposure on the level of uric acid （UA） in human urine. Methods In this study, 65 volunteers were recruited, who were working on welding and foundry work in an plant in Gansu province, China. Additionally, 29 control samples were collected from individuals who did not have any history of excessive Mn exposure. An improved high performance liquid chromatography system equipped with a diode-array detector （HPLC-DAD） method was developed to determine the UA level in human urine. A Spectra AA 220 Atomic Absorption Spectrophotometer （AAS） was used to measure the Mn level in the urine. Results The analytical method was validated acceptable accuracy, precision, and recovery significantly lower than that of control samples for concentrations ranging from 3.82-45.84 pg/mL with Overall, the UA levels of Mn exposure samples were （P〈O.O5）. Conclusion The practical method developed here is suitable for both routine monitoring of UA level in human urine and metabolism research. Long-term and low-level occupational Mn exposure may lead to a lower UA level in urine, and UA might be an indicator of the early stage of manganism.

关键词： High-performance liquid chromatography Uric acid Occupational Mn exposure

Effects of different Wall-breaking Methods on Extraction of Solanesol from Stems and Leaves of Potato

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Agricultural Biotechnology 2017年第2期6卷 11-14页

作者： Bingpeng WANG Jing MENG Mei GUO Xinyi HUANG Fangyuan DONG duolong di Department of Pharmacy Gansu University of Medicine/Key Laboratory of Chemistry and Quality for Traditional Chinese Medicines of the College of Gansu ProvinceLanzhou 730000China Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000China Comprehensive Development Office of Agriculture in Ningxia Au-tonomous Region Yinchuan 750011China

In order to extract solanesol from potato stems and leaves more effectively and improve the extraction rate of solanesol, the same batch of potato stems and leaves harvested from Guyuan, Ningxia was selected as a research object, cell wall of potato stems and leaves was broken by enzymolysis with cellulase and high- speed shearing, and then reflux-extracted with 95% ethanol. Solanesol content was determined by HPLC, and extract yield was calculated. Extract yield and solanesol extraction rate was used as an index for comparison of difference between the 2 wall-breaking methods, so as to select the optimal wall-breaking method. The results showed that enzymolysis with cellulase exhibited extraction rate and extract yield of solanesol of 91.38% and 8.02%, respectively, which were better than those under high-speed shear emulsification technique. The enzymolysis wall-breaking method has the advantages of simple operation and strong feasibility.

关键词： Enzymolysis High-speed shearing Potato stems and leaves Solanesol