Selection of aptamers against tumor cells and protein marker

研究报告的第一部分主要以人乳腺癌细胞系MCF-7为靶标，筛选出乳腺癌细胞的核酸适体。乳腺癌是女性常见的癌症之一。然而，乳腺癌的生物标记物却很罕见。既然非正常的膜蛋白是疾病诊断、治疗和预后的理想生物标记物，那么可以利用具有分子识别特性的单链寡聚核苷酸分子（核酸适体）依据细胞表面的差异区分正常细胞和肿瘤细胞并引导发现新的生物标记物。本研究的目标是筛选出人乳腺癌细胞MCF-7的核酸适体，为发现乳腺癌的有效生物标记物奠定基础。因此，本研究采用基于细胞的指数富集配体系统进化技术即Cell-SELEX技术，以人乳腺癌细胞MCF-7为靶标筛选其对应的核酸适体，以人乳腺上皮细胞MCF-10A为对照细胞。在筛选...In the first section, aptamer against human breast cancer cell line MCF-7 was selected in vitro. Breast cancer is the most common female cancer. However, the effective specific biomarkers for breast cancer are still scarce. Since abnormal membrane proteins serve as ideal biomarkers for disease diagnoses, therapeutics and prognosis, single-stranded oligonucleotide molecules (aptamer) with molecular...学位：博士后院系专业：化学化工学院化学系_化学生物学专业学号：201017001

污水处理厂中浮游生物群落DNA指纹及其与水质指标的关系

以武汉龙王嘴污水处理系统为研究对象,揭示了污水处理各阶段中浮游生物群落的DNA指纹拓扑结构,进而探索了其与浮游生物群落结构和环境理化因子的关系.首先建立了污水处理系统中浮游生物群落总DNA提取方法,然后用原核与真核特异性引物对流程(A2/O氧化沟工艺)中不同阶段的浮游生物群落总DNA进行PCR扩增,用变性梯度凝胶电泳(DGGE)检测,并对平行水样分别进行常规理化因子和浮游生物物种的检测与鉴定.结果显示,各采样点理化因子、物种组成与浮游生物DNA指纹的统计分析结果十分吻合,厌氧、缺氧和好氧阶段间差异较小,

没食子儿茶素促进脂肪细胞吸收葡萄糖研究

目的探讨没食子儿茶素对脂肪细胞在高浓度葡萄糖条件下吸收葡萄糖的作用。方法应用3T3-L1前脂肪细胞分化模型,测定在脂肪细胞中没食子儿茶素对葡萄糖吸收的作用和对3T3-L1前脂肪细胞分化的影响。结果没食子儿茶素可促进脂肪细胞中高浓度葡萄糖(30 mmol/L)条件下由胰岛素刺激的葡萄糖吸收,加快3T3-L1前脂肪细胞的分化。结论没食子儿茶素可增加脂肪细胞葡萄糖吸收并促进3T3-L1前脂肪细胞分化,提示没食子儿茶素可有效改变血糖浓度和改善胰岛素抵抗。国家自然科学基金面上项目(81773601);;福建省卫生系统中青年骨干人才培养项目2015年资助计划基础项目;;厦门市卫计委资助项目(2015-ZQN-JC-45);;福建省自然科学基金计划资助项目(2015J01065);;福建省教育厅2015年第二批高等学校优秀学科(专业)带头人赴海外访学研修资助项目[闽教人(2015)103号];;福建省厦门市科技局科技计划高校创新项目(3502Z20143026);福建省厦门市科技局科技计划项目(3502Z20144031);;厦门医学院科研项目(Z2013-12,Z2013-25

没食子儿茶素没食子酸酯对脂肪细胞吸收葡萄糖的影响

目的:探讨没食子儿茶素没食子酸酯是否存在促进3T3-L1脂肪细胞吸收葡萄糖的潜力。方法:为测定没食子儿茶素没食子酸酯对脂肪细胞吸收葡萄糖的作用和对前脂肪细胞分化的影响,分别采用了葡萄糖荧光示踪剂检测法和3T3-L1前脂肪细胞分化模型。结果:没食子儿茶素没食子酸酯可提高脂肪细胞在高浓度葡萄糖(30 mM)条件下由胰岛素刺激的葡萄糖吸收,促进3T3-L1前脂肪细胞分化为脂肪细胞。结论:没食子儿茶素没食子酸酯可促进脂肪细胞吸收葡萄糖和前脂肪细胞分化,提示没食子儿茶素没食子酸酯可能对降低血糖和改善胰岛素抵抗有一定作用。国家自然科学基金面上项目(81773601)福建省教育厅中青年教师教育科研项目(JT180664)福建省卫生系统中青年骨干人才培养项目(2015-ZQN-JC-45

Screening research on effective parts of Alisma orientalis( Samuel. ) Juzep. associated with blood glucose decrease in type 2 diabetic mice

目的初步探索泽泻[Alisma orientalis(Samuel.)Juzep.]降低2型糖尿病小鼠血糖的有效部位。方法采用超声提取法获得泽泻乙醇提取物,再分别用石油醚、乙酸乙酯、水饱和正丁醇和水相进行萃取分离,得到的泽泻乙醇提取物及其各溶剂萃取物应用于腹腔注射烟碱、链脲霉素诱导的2型糖尿病小鼠模型。造模成功后,将动物分组,其中空白对照组(未注射链脲霉素和烟碱的小鼠)和2型糖尿病模型组小鼠连续灌胃0.9%Na Cl溶液21 d(灌胃剂量为10μl/g),测试药物组分别连续灌胃泽泻乙醇提取物、泽泻石油醚萃取物、泽泻乙酸乙酯萃取物、泽泻正丁醇萃取物、泽泻水萃取物21 d(各测试药物灌胃高、中、低剂量分别为100μg/g、50μg/g、25μg/g),阳性对照组连续灌胃罗格列酮溶液21 d(灌胃剂量为10μg/g),每组8只小鼠,筛选具有降低2型糖尿病小鼠血糖的泽泻有效部位。用具有降低2型糖尿病小鼠血糖的有效部位处理3T3-L1前脂肪细胞,观察其对前脂肪细胞分化过程的影响。结果与2型糖尿病模型组比较,连续灌胃泽泻乙酸乙酯萃取物21 d(剂量为100μg/g)降低了2型糖尿病小鼠的血糖,改善了口服葡萄糖耐受试验(oral glucose tolerance test,OGTT)过程中的糖耐量(P<0.01)。1 mg/L和10 mg/L的泽泻乙酸乙酯萃取层均能促进前脂肪细胞的分化过程。结论泽泻乙酸乙酯萃取物降低了2型糖尿病小鼠血糖,促进了3T3-L1前脂肪细胞分化,但其具体作用机制尚需深入研究。Objective To explore the effective parts of Alisma orientalis( Samuel.) Juzep. associated with blood glucose decrease in type 2 diabetic mice.Methods Ethanol extracts from A. orientalis were obtained by ultrasonic extraction. Then,the ethanol extract was extracted and separated with petroleum ether,ethyl acetate,water saturated n-butanol and water respectively. After decompressing concentration,these solvent extractions were applied to type 2 diabetic mice model induced by intraperitoneal injection of streptozotocin and nicotine. After successful modeling,the mice were divided into the blank control group( without injection of streptozotocin and nicotine),model group of type 2 diabetes mellitus,positive control group and test drug groups,8 in each group. The blank control group and model group were treated with 0. 9% Na Cl at the dose of 10μl / g,the test drug groups were treated with corresponding extracts from different solvent extractions described above at the high-,mid-,low-dose of 100,50,25 μg / g respectively. The positive control group was treated with rosiglitazone at the dose of10μg / g. The treatment course was 21 days for intragastric administration. The effective parts of Alisma orientalis( Samuel.) Juzep. associated with blood glucose decrease in type 2 diabetic mice were screened and then the effect of the screened effective part on the differentiation of 3T3-L1 pre-adipocyte was observed.Results Compared with the model group,the blood glucose was decreased after the intragastric administration with ethyl acetate extract of A. orientalis at dose of100μg / g for 21 days and the glucose tolerance during the oral glucose tolerance test( OGTT) was improved( P < 0. 01). The differentiation of pre-adipocyte was promoted when the ethyl acetate extract of A. orientalis at the concentration of 1 mg / L and 10 mg / L. Conclusion The ethyl acetate extract of A. orientalis reduced the blood glucose in type 2 diabetic mice and promoted the differentiation of 3T3-L1 pre-adipocytes,but the specific mechanism still need to be further studied.福建省科技厅自然科学基金青年创新项目;; 厦门市卫计委资助项目(2014D008),厦门市卫计委资助项目(2015-ZQN-JC-45);; 福建省卫生系统中青年骨干人才培养项目基础项目;; 福建省科技厅自然科学基金(2015J01065);; 福建省教育厅中青年教师教育科研项目杰青项目(JA14421),福建省教育厅中青年教师教育科研项目(JA13425);; 厦门市科技局科技计划高校创新项目(3502Z20143026),厦门市科技局科技计划项目(3502Z20144031);; 厦门医学高等专科学校科研基金(Z2013-12,Z2013-25

Kiinteän oikomiskojeen rakentaminen ja purkaminen sekä oikomiskojeen puhdistaminen : opetusvideo simulaatio-opetukseen

Suuhygienistin ortodontiaan liittyvät työtehtävät ovat lisääntyneet. Ortodontialla tarkoitetaan hammaslääketieteellistä alaa, jossa on kyse hampaan suoristamisesta ja siirtämisestä sekä leukojen kasvun ja purennan kehityksen kokonaisvaltaisesta ohjaamisesta. Suuhygienistin ortodontisiin työtehtäviin kuuluvat kiinteän kojeistuksen rakentaminen, puhdistaminen sekä purkaminen. Opinnäytetyön tarkoituksena oli tuottaa opetusvideo kiinteän oikomiskojeen rakentamisesta, puhdistuksesta sekä purkamisesta. Tavoitteena oli luoda suuhygienistiopiskelijoiden ortodontista osaamista kehittävä opetusmateriaali simulaatiotilanteessa tapahtuvaa opetusta varten. Tavoitteena oli myös samalla kehittää ortodontiaan liittyvää simulaatio-opetustilannetta videomateriaalin avulla. Opinnäytetyö toteutettiin toiminnallisena opinnäytetyönä, joka koostuu teoreettisesta viitekehyksestä ja tuotoksesta eli opetusvideosta. Opinnäytetyön teoreettinen viitekehys koostuu kiinteän kojeistuksen rakentamisen, purkamisen sekä puhdistuksen ajankohtaisesta tietoperustasta. Teoreettisessa viitekehyksessä on käsitelty myös toiminnallisen opinnäytetyön toteuttamista sekä hyvän opetusvideon kriteerejä ja tekoprosessia. Opetusvideo sisältää kiinteän kojeistuksen rakentamiseen ja purkamiseen liittyvät työvaiheet demonstroituna sekä ääneen opastettuna. Lisäksi videolla demonstroidaan kiinteän kojeistuksen puhdistus sähkö- ja manuaalihammasharjalla, siltaneulalla ja hammaslangalla sekä hammasväliharjalla. Opinnäytetyön tuotoksena kehitettiin suuhygienistiopiskelijoiden ortodontista käytännön osaamista tukeva videomateriaali. Videomateriaali kuvattiin Turun ammattikorkeakoulun tiloja ja simulaatio-opetuskalloa sekä -välineitä käyttäen. Video luovutetaan Turun ammattikorkeakoulun suuhygienistikoulutuksen opetuskäyttöön USB-muistitikulle ladattuna ja tallennetaan Turun ammattikorkeakoulun sähköiseen oppimisympäristöön Optimaan.Dental hygienists’ orthodontics-related tasks have increased. Orthodontics refers to a field of dentistry that deals with straightening and moving teeth as well as the overall control of the growth of the jaws and the development of occlusion. The orthodontic tasks that are carried out by a dental hygienist include the construction, cleaning and removing of a fixed appliance. The purpose of this thesis was to produce an educational video on the construction, cleaning and removing of a fixed orthodontic appliance. The aim was to create teaching material for Turku University of Applied Sciences that would support the learning of dental hygienist students on the topic of orthodontics in simulation-based training. The functional consists of the theoretical framework and an educational video as a result. The theoretical framework consists of up-to-date information of the construction, removing and cleaning of a fixed appliance. In the theoretical framework there has been described the research method and the criteria and the process of making an educational video are also discussed. The video contains demonstrated stages of constructing, removing and cleaning of a fixed orthodontic appliance. It also contains demonstrations of cleaning a fixed orthodontic appliance with electrical and manual toothbrush and interdental equipment. Video material was created to support dental hygienist students’ learning of orthodontics. The video has been downloaded on an USB memory Stick and it will be transferred to use of dental hygienist programme of Turku University of Applied Sciences. The video is also saved in the electronic learning platform Optima

太子参环肽类化合物Pseudostellarin E对3T3-L1前脂肪细胞分化和葡萄糖吸收的作用

目的探讨太子参环肽类化合物Pseudostellarin E是否具有治疗2型糖尿病的潜力。方法在3T3-L1前脂肪细胞中应用了葡萄糖吸收试验和分化模型。结果 Pseudostellarin E不仅加速3T3-L1前脂肪细胞分化进程,而且在高浓度(30m M)葡萄糖条件下增加了分化的脂肪细胞对胰岛素刺激的葡萄糖的吸收。结论上述结果表明,Pseudostellarin E可能具有治疗糖尿病的潜能。国家自然科学基金面上项目(81773601);;福建省教育厅2015年第二批高等学校优秀学科(专业)带头人赴海外访学研修资助项目(闽教人[2015]103号);;福建省自然科学基金计划资助项目(2015J01065);;福建省卫生系统中青年骨干人才培养项目2015年资助计划基础项目(2015-ZQN-JC-45);;福建省厦门市科技局科技计划高校创新项目(3502Z20143026);;厦门医学院科研项目(Z2013-12,Z2013-25

Effect of Ethanol Extract from Camellia Oleifera Abel. on Blood Glucose in Type 2 Diabetic Mice

目的筛选油茶（Camellia oleifera Abel.）降低2型糖尿病小鼠血糖的有效部位。方法采用腹腔注射烟碱、链脲霉素诱导的2型糖尿病小鼠模型,应用超声提取法分别获得油茶叶、果、籽的乙醇提取物,筛选降低血糖的有效部位。结果阳性药罗格列酮每日灌胃剂量10mg/kg·BW,连续灌胃21d后,降低了2型糖尿病小鼠血糖。分别灌胃油茶叶、油茶果、油茶籽乙醇提取物,按每日剂量100mg/kg·BW连续灌胃21d后,均在一定程度上降低2型糖尿病小鼠血糖,油茶籽乙醇提取物对口服葡萄糖耐受试验（Oral glucose tolerance test,OGTT）作用最明显。与对照组相比,1μM和2μM的阳性药罗格列酮均能明显促进3T3-L1前脂肪细胞分化;油茶籽乙醇提取物在0.5μg·m L-1和1μg·m L-1浓度下也体现出促进分化的活性。结论油茶籽乙醇提取物降低了2型糖尿病小鼠的血糖,促进了3T3-L1前脂肪细胞的分化,但其具体作用机制尚需深入研究。OBJECTIVE To investigate effective parts possessing property of lowering blood glucose in type 2diabetic mice from Camellia oleifera Abel. METHODS Leaf,fruit and seed ethanol extract of C. oleifera were obtained through ultrasonic extraction,and were subsequently subject to type 2 diabetic mice model induced by intraperitoneal injection of streptozocin and nicotine. RESULTS In accordance with the positive drug rosiglitazone by intragastric administration once daily dose of 10 mg / kg·BW,continuous intragastric administration for 21 days,blood glucose in type 2 diabetic mice was reduced. In accordance with a daily dose of 100 mg / kg·BW leaf,fruit and seed ethanol extract of C. oleifera,continuous intragastric administration for 21 days respectively,in a certain extent,blood glucose in type 2 diabetic mice was reduced. Moreover,effect of seed ethanol extract on blood glucose and oral glucose tolerance test（ OGTT） is the most obvious. Compared with control group（ treated with insulin）,1μM and 2μM of positive drug rosiglitazone can significantly promote differentiation of 3T3-L1 pre-adipocytes,C. oleifera seed ethanol extract as the most effective part for lowing blood glucose at 0. 5μg·m L~（-1） and 1μg·m L~（-1）concentration also promoted 3T3-L1 pre-adipocyte differentiation. CONCLUSION It was suggested that C. oleifera seed ethanol extract lowered blood glucose in type 2 diabetic mice and enhanced differentiation of 3T3-L1 pre-adipocytes,but the specific mechanism needs further study.福建省教育厅中青年教师教育科研项目杰青项目JA14421;福建省教育厅中青年教师教育科研项目JA13425; 厦门市科技局科技计划高校创新项目3502Z20143026;厦门市科技局科技计划项目3502Z20144031; 福建省自然科学基金计划资助项目2015J01065; 福建省科技厅自然科学基金青年创新项目2014D008; 福建省卫生系统中青年骨干人才培养项目基础项目2015-ZQN-JC-45; 厦门市卫生和计划生育委员会资助研究经费; 厦门医学高等专科学校科研基金Z2013-12;Z2013-2

23-乙酰泽泻醇B对2型糖尿病小鼠血糖的影响

目的 探讨23-乙酰泽泻醇B是否有治疗2型糖尿病的潜能。方法 通过腹腔注射链脲佐菌素和烟酰胺建立2型糖尿病小鼠模型。灌胃罗格列酮或23-乙酰泽泻醇B 3周后,测定2型糖尿病小鼠血糖值,次日进行口服葡萄糖耐受试验（OGTT）。采用葡萄糖荧光示踪剂,测定23-乙酰泽泻醇B对葡萄糖吸收的影响。采用3T3-L1前脂肪细胞分化模型,测定其对分化的影响。结果 分别每天灌胃阳性药罗格列酮10 mg·kg-1、23-乙酰泽泻醇B(5、10、20 mg·kg-1),连续灌胃给药3周后,降低了2型糖尿病小鼠血糖值,一定程度改善OGTT过程中胰岛素抵抗。在30 mmol·L-1高糖条件下,23-乙酰泽泻醇B促进了脂肪细胞对胰岛素刺激的葡萄糖吸收; 23-乙酰泽泻醇B(1、10μmol·L-1)促进3T3-L1前脂肪细胞的分化过程。结论 23-乙酰泽泻醇B降低2型糖尿病小鼠血糖,促进前脂肪细胞分化,促进脂肪细胞吸收葡萄糖,但作用机制仍需进一步探索。国家自然科学基金面上项目(No 81773601);;福建省卫生系统中青年骨干人才培养项目(No 2015-ZQN-JC-45);;福建省教育厅中青年教师教育科研项目(No JT180664

槐花提取物降血糖活性研究

目的研究槐花Sophora japonica L.(Leguminosae)提取物对2型糖尿病小鼠降血糖活性。方法通过超声提取法获得槐花乙醇提取物。使用腹腔注射烟碱和链脲霉素诱导的2型糖尿病小鼠模型和3T3-L1前脂肪细胞分化模型,检测槐花乙醇提取物对小鼠血糖的影响和对3T3-L1前脂肪细胞分化的影响。结果槐花乙醇提取物灌胃剂量每日100μg/g,连续灌胃给药3周,降低了2型糖尿病小鼠的血糖,改善口服葡萄糖耐受试验OGTT过程中的糖耐量。0.4 mg/L和0.8 mg/L的槐花乙醇提取物均能促进3T3-L1前脂肪细胞分化。结论槐花乙醇提取物降低2型糖尿病小鼠血糖,促进3T3-L1前脂肪细胞分化,具体作用机制有待进一步研究。福建省教育厅中青年教师教育科研项目(JA13425);福建省教育厅中青年教师教育科研项目杰青项目(JA14421);福建省卫生系统中青年骨干人才培养项目基础项目;厦门市卫计委资助项目(2015-ZQN-JC-45);厦门市卫计委资助项目(2014D008);福建省科技厅自然科学基金青年创新项目;福建省科技厅自然科学基金项目(2015J01065);厦门市科技局科技计划高校创新项目(3502Z20143026);厦门市科技局科技计划项目(3502Z20144031);厦门医学院科研基金(Z2013-12、Z2013-25