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| 1 | JAK-STAT pathway in carcinogenesis:Is it relevant to cholangiocarcinoma progression?显示文摘The features of JAK-STAT signaling in liver cells are discussed in the current review. The role of this signaling cascade in carcinogenesis is accentuated. The possible involvement of this pathway and alteration of its elements are compared for normal cholangiocytes, cholangiocarcinoma predisposition and development. Prolactin and interleukin-6 are described in detail as the best studied examples. In addition, the non-classical nuclear translocation of cytokine receptors is discussed in terms of its possible implication to cholangiocarcinoma development. | Olga V Smirnova Tatiana Yu Ostroukhova Roman L Bogorad | 2007 | World Journal of Gastroenterology2007，13，48： | 14 |
| 2 | Beneficiation of the gold bearing ore by gravity and flotation显示文摘Gold concentration usually consists of gravity separation, flotation, cyanidation, or the combination of these processes. The choice among these processes depends on the mineralogical characterization and gold content of the ore. Recently, the recovery of gold using gravity methods has gained attention because of low cost and environmentally friendly operations. In this study, gold pre-concentrates were produced by the stepwise gravity separation and flotation techniques. The Knelson concentrator and conventional flotation were employed for the recovery of gold. Gold bearing ore samples were taken from Gümüshane Region, northern east part of Turkey. As a result of stepwise Knelson concentration experiments, a gold concentrate assaying around 620 g/t is produced with 41.4wt% recovery. On the other hand, a gold concentrate about 82 g/t is obtained with 89.9wt% recovery from a gold ore assaying 6 g/t Au by direct flotation. | Alim Gül Olga Kangal Ayhan A. Sirkeci Güven nal | 2012 | International Journal of Minerals,Metallurgy and Materials2012，19，2： | 10 |
| 3 | 中国新疆维吾尔自治区不明原因发热人群中Tahyna病毒感染状况调查显示文摘本研究通过对新疆地区不明原因发热人群血清Tahyna病毒抗体进行检测,以了解Tahyna病毒在当地的感染状况及分布特征。通过间接免疫荧光方法对新疆维吾尔自治区南部喀什地区、北部伊犁地区742例不明原因发热患者急性期血清标本进行Tahyna病毒抗体检测,并对IgM抗体阳性标本平行进行Tahyna病毒、Snowshoe hare病毒和Inkoo病毒三种抗原性相似的布尼亚病毒的蚀斑减少中和试验。研究结果显示新疆南部喀什地区采集不明原因发热患者急性期血清中,IgM抗体阳性率5.3%,IgG抗体阳性率18.3%;新疆北部伊犁地区采集的急性期患者血清标本中并未发现TAHV IgM抗体阳性;蚀斑减少中和试验结果显示,TAHV IgM抗体阳性患者血清中Tahyna病毒中和抗体滴度较其它两种布尼亚病毒中和抗体滴度升高明显。本研究证实新疆南部地区不明原因发热人群存在Tahyna病毒的急性感染和既往感染,为相关疾病的进一步监测提供基础。 | 吕志 付士红 王凤田 Kosoy Olga L Nasci Roger S 梁国栋 | 2011 | 病毒学报2011，27，1： | 8 |
| 4 | Identification of human papillomavirus in esophageal squamous papillomas显示文摘AIM:To investigate the presence of human papillomavirus (HPV) in esophageal squamous papilloma (ESP) and determine p16, p53 and Ki67 expression in a Mexican cohort. METHODS: Nineteen cases diagnosed as ESP, corresponding to 18 patients were reviewed; nineteen cases of normal esophageal mucosa were used as negative controls. HPV detection was performed by amplified chromogenic in situ hybridization (ACISH) using a wide spectrum-cocktail probe and PCR. RESULTS: The average age at presentation was 46.3 years (range 28-72 years). Patients included four (22.22%) males and 14 (77.77%) females. The most frequent location was upper third (11 cases), followed by middle third (3 cases) and unknown site (5 cases). Immunohistochemistry (IHC) revealed basal and focal p53 expression in 17 cases (89%); p16 was expressed in eight cases (42.10%) and the Ki67 index ranged from 10% to 30%. HPV was detected in 14 out of 16 cases (87.5%) by ACISH: Twelve showed diffuse nuclear patterns and two showed granular patterns. HPV DNA was identified by PCR in 12 out of 14 cases (85.7%). Low-risk HPV types were detected in the most of the cases. CONCLUSION: This study provides identification of HPV infection in almost 80% of ESP using either ACISH or PCR; overall, all of these lesions show low expression of cell-cycle markers. We suggest ACISH as an alternative diagnostic tool for HPV detection in ESP. | Olga L Bohn Leticia Navarro Jesus Saldivar Sergio Sanchez-Sosa | 2008 | World Journal of Gastroenterology2008，14，46： | 5 |
| 5 | Contribution of functional KIR3DL1 to ankylosing spondylitis显示文摘Increasing evidence points to a role for killer immunoglobulin-like receptors(KIRs)in the development of autoimmune diseases.In particular,a positive association of KIR3DS1(activating receptor)and a negative association of KIR3DL1(inhibitory receptor)alleles with ankylosing spondylitis(AS)have been reported by several groups.However,none of the studies analyzed these associations in the context of functionality of polymorphic KIR3DL1.To better understand how the KIR3DL1/3DS1 genes determine susceptibility to AS,we analyzed the frequencies of alleles and genotypes encoding functional(KIR3DL1*F)and non-functional(KIR3DL1*004)receptors.We genotyped 83 AS patients and 107 human leukocyte antigen(HLA)-B27-positive healthy controls from the Russian Caucasian population using a two-stage sequence-specific primer PCR,which distinguishes KIR3DS1,KIR3DL1*F and KIR3DL1*004 alleles.For the patients carrying two functional KIR3DL1 alleles,those alleles were additionally genotyped to identify KIR3DL1*005 and KIR3DL1*007 alleles,which are functional but are expressed at low levels.KIR3DL1 was negatively associated with AS at the expense of KIR3DL1*F but not of KIR3DL1*004.This finding indicates that the inhibitory KIR3DL1 receptor protects against the development of AS and is not simply a passive counterpart of the segregating KIR3DS1 allele encoding the activating receptor.However,analysis of genotype frequencies indicates that the presence of KIR3DS1 is a more important factor for AS susceptibility than the absence of KIR3DL1*F.The activation of either natural killer(NK)or T cells via the KIR3DS1 receptor can be one of the critical events in AS development,while the presence of the functional KIR3DL1 receptor has a protective effect.Nevertheless,even individuals with a genotype that carried two inhibitory KIR3DL1 alleles expressed at high levels could develop AS. | Ivan V Zvyagin Ilgar Z Mamedov Olga V Britanova Dmitriy B Staroverov Evgeni L Nasonov Anna G Bochkova Anna V Chkalina Alexei A Kotlobay Dmitriy O Korostin Denis V Rebrikov Sergey Lukyanov Yuri B Lebedev Dmitriy M Chudakov | 2010 | Cellular & Molecular Immunology2010，7，6： | 5 |
| 6 | Celecoxib enhances the detoxification of diethylnitrosamine in rat liver cancer显示文摘AIM:To study the effect of celecoxib(CXB) on diethylnitrosamine activation through the regulation of cytochrome P450 in a hepatocarcinogenesis model.METHODS:Six-week-old male Sprague-Dawley rats were randomly divided into fi ve groups,a non-treated group(NT) ,a diethylnitrosamine-treated group(DEN) ,a DEN+CXB-treated group(DEN+CXB) ,and CXB 8 d-treated and CXB 32 d-treated groups.The effects of celecoxib on the enzymatic activities of CYP1A1,2A,2B1/2,and 2E1 were assessed in hepatic microsomes 24 h after DEN administration.Changes in CYP1A1 and CYP2B1/2 protein expression were also evaluated.The rate of DEN metabolism was measured by the production of the deethylation metabolite acetaldehyde,and the denitrosation metabolite nitrite.RESULTS:DEN+CXB administration produced a significant increase in the enzymatic activities of CYP2B1/2 and 1A1,whereas it did not change the activities of CYP2A and 2E1,compared to that of the DEN group.CXB treatment for eight days did not produce a signif icant effect on enzymatic activity when compared to the NT group;however,when it was administered for prolonged times(CXB 32 d group) ,the enzymatic activities were increased in a similar pattern to those in the DEN+CXB group.The observed increase in the enzymatic activities in the DEN+CXB group was accompanied by an increase in the CYP2B1/2 protein levels;no changes were observed in the levels of CYP1A1.In vitro,CXB increased the denitrosation of DEN,a pathway of metabolic detoxification.The addition of SKF-525A,a preferential inhibitor of CYP2B,abrogated the denitrosation of DEN.CONCLUSION:These results suggest that the mechanism of action of CXB involves enhancement of the detoxif ication of DEN by an increasing denitrosation via CYP2B1/2. | Martha Estela Salcido-Neyoy Adolfo Sierra-Santoyo Olga Beltrán-Ramírez José Roberto Macías-Pérez Saúl Villa-Trevio | 2009 | World Journal of Gastroenterology2009，15，19： | 3 |
| 7 | The presence of ANP in rat peritoneal mast cells显示文摘Atrial natriuretic peptide (ANP) is an important component of the natriuretic peptide system. A great role in many regulatory systems is played by mast cells. Meanwhile involvement of these cells in ANP activity is poorly studied. In this work, we have shown the presence of ANP in rat peritoneal mast cells. Pure fraction of mast cells was obtained by separation of rat peritoneal cells on a Percoll density gradient. By Western blotting, two ANP-immunoreactive proteins of molecular masses of 2.5 kDa and 16.9 kDa were detected in lysates from these mast cells. Electron microscope immunogold labeling has revealed the presence of ANP-immunoreactive material in storage, secreting and released granules of mast cells. Our findings indicate the rat peritoneal mast cells to contain both ANP prohormone and ANP. These both peptides are located in mast cell secretory granules and released by mechanism of degranulation. It is discussed that many mast cell functions might be due to production of natriuretic peptides by these cells. | Marina G MARTYNOVA Olga A BYSTROVA Olga M MOISEEVA Anton L EVDONIN Kirill A KONDRATOV Natalja D MEDVEDEVA | 2005 | Cell Research2005，15，10： | 3 |
| 8 | Panax ginseng natural populations: their past, current state and perspectives显示文摘瞄准:人参属人参,遗传和它 Primorye (俄国) 的自然人口的个体发生的结构的交配系统被调查。方法:基因差异用紧密相联的酶和荧光灯地基于的自动化放大碎片长度多型性(AFLP ) 和简单顺序被估计重复(SSR ) 标记。结果:在种类水平的全部的基因差异与紧密相联的酶是低的试金(0.023 ) ,和有 AFLP (0.255 ) 和 SSR (0.259 ) 的高度方法。它根据紧密相联的酶(>99%) 在人口以内被观察, AFLP (>85%) ,和 SSR (>73%) 试金。基因可变性分发的索引指出开拓殖民地在早 Holocene 在温暖的时期期间从南部的避难处由人参的 Sikhote-Alin 种。到异花受粉和自花传粉的人参植物的能力被显示出,人参属人参是容许的单性生殖的植物的假设被证实。人参的繁殖系统拥有授精进程的高粘性和稳定性帮助种类处于压力条件幸存。外部或内部的因素引起的骚乱能由于人参小卵或单性生殖的胚胎开发的形态基因的潜力被减少。因为一些生活阶段是不在的或很少发生,人参人口的生活阶段结构的分析证明所有他们不是完整成分的。结论:在所有 3 张人口,处女和年轻生产个人是占优势的。人口学习了的这个工具是可行的,自然人参人口的再介绍还是可能的。 | Yuri N ZHURAVLEV Olga G KOREN Galina D REUNOVA Tamara I MUZAROK Tatiyana Yu GORPENCHENKO Irina L KATS Yuliya A KHROLENKO | 2008 | Acta Pharmacologica Sinica2008，29，9： | 3 |
| 9 | Non-thermal food preservation: Pulsed electric fields 显示文摘 | Humberto Vega-Mercado Olga M B Qin B L | 1997 | Trends in Food Science& Technology1997，，8： | 2 |
| 10 | Regulation of Human Placental Development by Oxygen Tension显示文摘 | Olga G Zhou Y John W L | 1997 | Science1997，277，： | 2 |
| 11 | Androgens and esophageal cancer: What do we know?显示文摘Significant disparities exist between genders for the development and progression of several gastrointestinal(GI) diseases including cancer. Differences in incidence between men vs women for colon, gastric and hepatocellular cancers suggest a role for steroid sex hormones in regulation of GI carcinogenesis. Involvement of intrinsic gender-linked mechanisms is also possible for esophageal adenocarcinoma as its incidence is disproportionally high among men. However, the cause of the observed gender differences and the potential role of androgens in esophageal carcinogenesis remains unclear, even though the cancer-promoting role of androgen receptors(AR) shown in other cancers such as prostate and bladder suggests this aspect warrants exploration. Several studies have demonstrated expression of ARs in esophageal cancer. However, only one study has suggested a potential link between AR signaling and outcome- poorer prognosis. Two groups have analyzed data from cohorts with prostate cancer and one of these found a decreased incidence of esophageal squamous and adenocarcinoma after androgen deprivation therapy. However, very limited information is available about the effects of androgen and AR-initiated signaling on esophageal cancer cell growth in vitro and in vivo. Possible mechanisms for androgens/AR involvement in the regulation of esophageal cancer growth are considered, and the potential use of AR as a prognostic factor and clinical target is highlighted, although insufficient evidence is available to support clinical trials of novel therapies. As esophageal adenocarcinoma is a gender linked cancer with a large male predominance further studies are warranted to clarify the role of androgens and ARs in shaping intracellular signaling and genomic responses in esophageal cancer. | Olga A Sukocheva Bin Li Steven L Due Damian J Hussey David I Watson | 2015 | World Journal of Gastroenterology2015，21，20： | 2 |
| 12 | Study of the adsorption of alkyl-benzene-derived amphiphiles on an asphaltene surface using molecular dynamics simulations显示文摘 | OLGA L ESTRELLA R ARGELIA U | 2001 | Energy & Fuels2001，15，1： | 1 |
| 13 | Development of morphology in latex particles:the interplay between thermodynamic and kinetic parameters显示文摘 | Yi Cherng Chen Victoria L Dimonie Olga L Shaffer | 1993 | Polymer International1993，30，2： | 1 |
| 14 | Prognostic value of neurohormonal activation and cardiopulmonary exercise testing in patients with chronic heart failure显示文摘 | Richard Isnard Fran?oise Pousset Jean-No?l Trochu Olga Chafirovska??a Alain Carayon Jean-Louis Golmard Philippe Lechat Daniel Thomas Jean-Brieuc Bouhour Michel Komajda | 2000 | The American Journal of Cardiology2000，，4： | 1 |
| 15 | Kinetics and thermodynamics of the Cr(Ⅲ) adsorption on the activated carbon from co-mingled wastes显示文摘 | Sergei I L Andrei I L Olga L G | 2004 | Colloids and Surfaces A: Physicochem Eng Aspects2004，242，： | 1 |
| 16 | Chemically deposited copper oxide thin films: structural, optical and electrical characteristics显示文摘 | M.T.S Nair Laura Guerrero Olga L Arenas P.K Nair | 1999 | Applied Surface Science1999，，1： | 1 |
| 17 | Fezoulidis Myocardial bridging evaluated with 128-multi detector computed tomography coronary angiography显示文摘 | Olga L Theodora K | 2010 | Surg Radiol Anat2010，1，32： | 1 |
| 18 | Microstructural issues in a friction- stir -welded aluminum alloy 显示文摘 | Olga Valerio Flores Christine Kennedy Murr L E | 1998 | Scripta Mater1998，38，5： | 1 |
| 19 | Genetic structure in a fragmented Northern Hemisphere rainforest: large effective sizes and high connectivity among populations of the epiphytic lichen Lobaria pulmonaria显示文摘 | Olga H Sverre L Hakon H | 2012 | Mol Ecol2012，21，13： | 1 |
| 20 | Loss of calcium channels in the cerebellum of the ataxic and epileptic stargazer mutant mouse显示文摘 | Belulah L Olga S Diane G | | 0，，07： | 1 |
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