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中国临床康复 2005年第11期9卷 65-67页

作者：刘玲玲谭端军刘鹏赵玉生王士雯 ozgul Apler Lee-Jun C Wong 解放军总医院老年心血管研究所北京市100853 美国华盛顿乔治顿大学医学中心分子与人类遗传研究所华盛顿20057

目的:探讨原发性高血压患者线粒体DNA控制区基因变异,并评估其在高血压发病中的作用。方法:提取符合WHO高血压诊断标准的20例原发性高血压患者和20例正常血压者的DNA。用3对交叉重叠引物扩增全部线粒体控制区D环基因,进行直接基因测序... 详细信息

目的:探讨原发性高血压患者线粒体DNA控制区基因变异,并评估其在高血压发病中的作用。方法:提取符合WHO高血压诊断标准的20例原发性高血压患者和20例正常血压者的DNA。用3对交叉重叠引物扩增全部线粒体控制区D环基因,进行直接基因测序和对比分析。结果:原发性高血压患者线粒体D环控制区的变异频率及密度犤13.95个/例,0.19/(100个碱基·例)犦均高于正常血压组犤10.7个/例,0.14/(100个碱基·例犦χ2=11.84,P<0.01)。线粒体转录因子结)(合位点1区域呈高变异状态,而且存在部分微卫星区的不稳定,np152C及np16189C的多态性变化可能为高血压的高风险位点。结论:原发性高血压患者D环区基因高变异率,线粒体DNA控制区变异可能与高血压的发病存在密切的关联。

关键词： DNA,线粒体/遗传学基因高血压/遗传学变异(遗传学)

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种间竞争对同域分布田鼠种群动态的影响(英文)

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动物学报 2007年第5期53卷 800-811页

作者： Lowell L.GETZ Arpat ozgul Madan K.OLI Joyce E.HOFMANN Betty McGUIRE Department of Animal Biology University of Illinois Department of Wildlife Ecology and Conservation University of Florida Illinois Natural History Survey Department of Ecology and Evolutionary Biology Cornell University

我们对美国伊利诺斯州中东部的蓝草和高草牧场共生的橙腹田鼠(Microtus ochrogaster)和草原田鼠(Microtus pennsylvanicus)开放种群进行了去除实验,以测定潜在的种间竞争。在蓝草草原,橙腹田鼠和草原田鼠的种群密度不因另一种的存在而... 详细信息

我们对美国伊利诺斯州中东部的蓝草和高草牧场共生的橙腹田鼠(Microtus ochrogaster)和草原田鼠(Microtus pennsylvanicus)开放种群进行了去除实验,以测定潜在的种间竞争。在蓝草草原,橙腹田鼠和草原田鼠的种群密度不因另一种的存在而受抑制;同时,另一种存在的情况下,相互间对月存活率、青年鼠位置的持久性生殖或迁入鼠数量没有负面影响,尽管在高草草原,草原田鼠似乎对橙腹田鼠的种群密度有强烈影响,并限制了迁入鼠的数量,但是雌橙腹田鼠的存活率、青年鼠的持久性和生殖活动的比例不因草原田鼠的存在而受影响。总之,在此研究地点,种间竞争没有对橙腹田鼠和草原田鼠共存种群的动态起到驱动作用。

关键词：田鼠橙腹田鼠草原田鼠种群统计种间竞争

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Mucosal healing effect of nilotinib in indomethacin-induced enterocolitis:A rat model

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World Journal of Gastroenterology 2015年第44期21卷 12576-12585页

作者： Gozde Dervis Hakim Mujde Soyturk Mehtat Unlu Pinar Ataca Meral Karaman ozgul Sagol Elif Borekci Osman Yilmaz Department of Gastroenterology School of Medicine Dokuz Eylul University Department of Pathology School of Medicine Dokuz Eylul University Department of Internal Medicine School of Medicine Dokuz Eylul University Department of Laboratory Animal Science School of Medicine Dokuz Eylul University

AIM: To investigate the effects of nilotinib in a rat model of indomethacin-induced ***: Twenty-one Wistar albino female rats obtained from Dokuz Eylul University Department of Laboratory Animal Science were divided into the following three groups: control(n = 7), indomethacin(n = 7) and nilotinib(n = 7). A volume of 0.25 m L of physiological serum placebo was administered to the control and indomethacin groups through an orogastric tube for 13 d. To induce enterocolitis, the indomethacin and nilotinib groups received 7.5 m L/kg indomethacin dissolved in 5% sodium bicarbonate and administered subcutaneously in a volume of 0.5 m L twice daily for three days. Nilotinib was administered 20 mg/kg/d in two divided doses to the nilotinib group of rats for 13 d through an orogastric tube, beginning on the same day as indomethacin administration. For 13 d, the rats werefed a standard diet, and their weights were monitored daily. After the rats were sacrificed, the intestinal and colonic tissue samples were examined. The macroscopic and microscopic pathology scores were evaluated. The pathologist stained all tissue samples using terminal deoxynucleotidyl transferase-mediated d UTP-biotin nick-end labeling method. Mucosal crypts and apoptotic cells were quantified. The plateletderived growth factor receptor(PDGFR) α and β scores assessed by immunohistochemical staining method and tissue and serum tumor necrosis factor(TNF) α levels were determined by enzyme-linked immunosorbent assay. RESULTS: Between days 1 and 13, the rats in the nilotinib and indomethacin groups lost significantly more weight than the controls(-11 g vs +14.14 g, P = 0.013;-30 g vs +14.14 g, P = 0.003). In the small intestinal and colonic tissues, the macroscopic scores were significantly lower in the nilotinib group than in the indomethacin group(1.14 ± 0.38 and 7.29 ± 2.98, P = 0.005; 1.14 ± 0.38 and 7.43 ± 2.64, P = 0.001, respectively), but the values of the nilotinib and indomethacin

关键词： Inflammatory bowel disease Enterocolitis Platelet-

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Determination of Competitive Adsorption and Desorption of Heavy Metals by Isotherm and Sequential Extraction Methods in Different Soil Orders in Erzurum Plain

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Journal of Agricultural Science and Technology 2010年第6期4卷 20-33页

作者： M. Turan S. Ata A. Gunes N. Ataoglu A. Esringu O. Uzun M. ozgul M. Y. Canbolat I. Bogdan Department of Soil Science Faculty of Agriculture Atatiirk University Erzurum 25240 Turkey Department of Agrotecnica University of Agricultural Science and Veterinary Medicine Cluj-Napoca 400372 Romania

The objective of this study was to DTPA （complexion agent） and a sequential extraction procedure, and adsorption-desorption isotherm （competitive） evaluate the mobility and distribution of Fe, Zn, Mn, Cu, Cd, Ni, and Pb using the in surface samples of five soil great groups differing in their physicochemical properties. For determining heavy metal adsorption and desorption capacities of soil samples, six different concentrations （0, 2.5, 5, 10, 15 and 20 mg Lt） were used in a laboratory experiment with tree replications. An analytical procedure involving sequential chemical extractions has been used for partitioning of heavy metals into five fractions. Sorption isotherms were characterized using linear, Frendlich and Langmuir equations. The results indicated that the selective sequences of the metal adsorption based on the distribution coefficient was Pb〉Cu〉Ni〉Cd〉Zn〉Mn〉Fe and Pb, Cu, and Ni are the most strongly sorbed metals by these soils, whereas Cd, Zn and Mn are the least sorbed ones. The total adsorbed amount of these metals on the studied soils was well described by Langmuir equation. Calciorthid had the highset Pb, Cu, Ni, Cd, Zn, Mn, and Fe adsorption, and the sequences followed order Fluvaquent〉Argiustoll〉Pellustert〉Haplustept of the studied soil.

关键词： Adsorption desorption heavy metal sequential analysis soil order.

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