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215篇 您的检索式:作者名="Oscar M"
    题名 作者 年代 出处 被引量
1Ligation-assisted endoscopic mucosal resection of gastric heterotopic pancreas显示文摘Heterotopic pancreas is a congenital anomaly characterized by ectopic pancreatic tissue.Treatment of heterotopic pancreas may include expectant observation,endoscopic resection or surgery.The aim of this report was to describe the technique of ligation-assisted endoscopic mucosal resection(EMR) for resection of heterotopic pancreas of the stomach.Two patients(both female,mean age 32 years) were referred for management of gastric subepithelial tumors.Endoscopic ultrasound in both disclosed small hypoechoic masses in the mucosa and submucosa.Band ligation-assisted EMR was performed in both cases without complications.Pathology from the resected tumors revealed heterotopic pancreas arising from the submucosa.Margins were free of pancreatic tissue.Ligation-assisted EMR is technically feasible and may be considered for the endoscopic management of heterotopic pancreas.Mouen A Khashab Oscar W Cummings John M DeWitt 2009World Journal of Gastroenterology2009,15,22:25
2The metabolome of induced pluripotent stem cells reveals metabolic changes occurring in somatic cell reprogramming显示文摘新陈代谢对房间功能的每个方面重要,然而,导致的 pluripotent 干细胞(iPSCs ) 的 metabolome 仍然保持大部分未经勘探。这里,我们报导,用一条 untargeted metabolomics 途径,那人的 iPSCs 份额有从他们的父母房间是不同的胚胎的干细胞(转换字符) 的 pluripotent metabolomic 签名,并且那被变化在涉及细胞的呼吸的代谢物描绘。细胞的 bioenergetics 的检查与我们的 metabolomic 分析支持了,并且证明体的房间在 pluripotency 从一个氧化状态变换成一个 glycolytic 状态。有趣地,各种各样的体的房间的 bioenergetics 与他们的 reprogramming 效率相关。我们进一步识别了在 iPSCs 和转换字符之间不同的代谢物,它揭示了在调整体的房间 reprogramming 起一个关键作用的新奇新陈代谢的小径。我们的调查结果是第一全球性分析 iPSCs 的 metabolome,并且提供机械学的卓见进涉及导致 pluripotency,并且在评估 iPSC 和转换字符等价的规定的新层。Athanasia D Panopoulos Oscar Yanes Sergio Ruiz Yasuyuki S Kida Dinh Diep Ralf Tautenhahn Aida Herrerias Erika M Batchelder Nongluk Plongthongkum Margaret Lutz W Travis Berggren Kun Zhang Ronald M Evans Gary Siuzdak Juan Carlos Izpisua Belmonte] 2012Cell Research2012,22,1:12
3YKL40 expression in CD14^+ liver cells in acute and chronic injury显示文摘AIM:To demonstrate that CD14 + cells are an important source of the growth factor YKL40 in acute and chronic liver damage.METHODS:Rats were inoculated with one dose of CCl4 to induce acute damage.Liver biopsies were obtained at 0,6,12,24,48 and 72 h.For chronic damage,CCl4 was administered three days per week for 6 or 8 wk.Tissue samples were collected,and cellular populations were isolated by liver digestion and purified by cell sorting.YKL40 mRNA and protein expression were evaluated by realtime polymerase chain reaction and western blot.RESULTS:Acute liver damage induced a rapid increase of YKL40 mRNA beginning at 12 h.Expression peaked at 24 h,with a 26fold increase over basal levels.By 72 h however,YKL40 expression levels had nearly returned to control levels.On the other hand,chronic damage induced a sustained increase in YKL40 expression,with 7and 9fold higher levels at 6 and 8 wk,respectively.The pattern of YKL40 expression in different subpopulations showed that CD14+cells,which include Kupffer cells,are a source of YKL40 after acute damage at 72 h[0.09 relative expression units(REU)]as well as after chronic injury at 6 wk(0.11 REU).Hepatocytes,in turn,accounted for 0.06 and 0.01 REU after 72 h(acute)or 6 wk(chronic),respectively.The rest of the CD14cells(including T lymphocytes,B lymphocytes,natural killer and natural killer T cells) yielded 0.07 and 0.15 REU at 72 h and 6 wk,respectively.YKL40 protein expression in liver was detected at 72 h as well as 6 and 8 wk,with the highest expression relative to controls(11fold;P≤0.05)seen at 6 wk.Macrophages were stimulated by lipopolysaccharide.We demonstrate that under these conditions,these cells showed maximum expression of YKL40 at 12 h,with P<0.05 compared with controls.CONCLUSION:Hepatic CD14 + cells are an YKL40 mRNA and protein source in acute and chronic liver injury,with expression patterns similar to growth factors implicated in inflammationfibrogenesis.Oscar Pizano-Martínez Irinea Yaez-Sánchez Pilar Alatorre-Carranza Alejandra Miranda-Díaz Pablo C Ortiz-Lazareno Trinidad García-Iglesias Adrian Daneri-Navarro Mónica Vázquez-Del Mercado Mary Fafutis-Morris Vidal Delgado-Rizo 2011World Journal of Gastroenterology2011,17,33:3
4Tumor necrosis factor-α-induced protein 1 and immunity to hepatitis B virus显示文摘AIM: To compare the gene expression profile in a pair of HBV-infected twins.METHODS: The gene expression profile was compared in a pair of HBV-infected twins.RESULTS: The twins displayed different disease outcomes. One acquired natural immunity against HBV,whereas the other became a chronic HBV carrier. Eightyeight and forty-six genes were found to be up- or downregulated in their PBMCs, respectively. Tumor necrosis factor-alpha-induced protein 1 (TNF-αIP1) that expressed at a higher level in the HBV-immune twins was identified and four pairs of siblings with HBV immunity by RTPCR. However, upon HBV core antigen stimulation,TNF-αIP1 was downregulated in PBMCs from subjects with immunity, whereas it was slightly upregulated in HBV carriers. Bioinformatics analysis revealed a K+channel tetramerization domain in TNF-αIP1 that shares a significant homology with some human, mouse, and C elegan proteins.CONCLUSION: TNF-αIP1 may play a role in the innate immunity against HBV.Marie C Lin Nikki P Lee Ning Zheng Pai-Hao Yang Oscar G Wong Hsiang-Fu Kung Chee-Kin Hui John M Luk George Ka-Kit Lau 2005World Journal of Gastroenterology2005,11,48:3
5Epithelial plasticity, stemness and pluripotency显示文摘Oscar H Ocafia M Angela Nieto 2010Cell Research2010,20,10:3
6Topographic patterns of intestinal metaplasia and gastric cancer显示文摘Mauro Cassaro Massimo Rugge Oscar Gutierrez Gioacchino Leandro David Y Graham Robert M Genta 2000The American Journal of Gastroenterology2000,,:2
7Current trends of liver cirrhosis in Mexico: Similitudes and differences with other world regions显示文摘AIM To investigate the main current etiologies of cirrhosis in Mexico.METHODS We performed a cross-sectional retrospective multicenter study that included eight hospitals in different areas of Mexico. These hospitals provide health care to people of diverse social classes. The inclusion criteria were a histological, clinical, biochemical, endoscopic, or imaging diagnosis of liver cirrhosis. Data were obtained during a 5-year period(January 2012-December 2017). RESULTS A total of 1210 patients were included. The mean age was 62.5 years(SD = 12.1), and the percentages of men and women were similar(52.0% vs 48.0%). The most frequent causes of liver cirrhosis were hepatitis C virus(HCV)(36.2%), alcoholic liver disease(ALD)(31.2%), and nonalcoholic steatohepatitis(23.2%), and the least frequent were hepatitis B virus(1.1%), autoimmune disorders(7.3%), and other conditions(1.0%).CONCLUSION HCV and ALD are the most frequent causes of cirrhosis in Mexico. However, we note that non-alcoholic fatty liver disease(NAFLD) as an etiology of cirrhosis increased by 100% compared with the rate noted previously. We conclude that NAFLD will soon become one of the most frequent etiologies of liver cirrhosis in Mexico.Nahum Méndez-Sánchez Felipe Zamarripa-Dorsey Arturo Panduro Emma Purón-González Edgar Ulises Coronado-Alejandro Carlos Alejandro Cortez-Hernández Fátima Higuera de la Tijera José Luis Pérez-Hernández Eira Cerda-Reyes Heriberto Rodríguez-Hernández Vania César Cruz-Ramón Oscar Lenin Ramírez-Pérez Nancy Edith Aguilar-Olivos Olga Fabiola Rodríguez-Martínez Samantha Cabrera-Palma Guillermo Cabrera-álvarez 2018World Journal of Clinical Cases2018,6,15:2
8Neuroimaging standards for research into small vessel disease and its contribution to ageing and neurodegeneration显示文摘Joanna M Wardlaw Eric E Smith Geert J Biessels Charlotte Cordonnier Franz Fazekas Richard Frayne Richard I Lindley John T O’Brien Frederik Barkhof Oscar R Benavente Sandra E Black Carol Brayne Monique Breteler Hugues Chabriat Charles DeCarli Frank-Erik de 2013Lancet Neurology2013,,8:2
9Sulfurcoated fertilizers for controlled release: pilot plant production 显示文摘Glenn M B Donald W R Oscar E M 1971Agric Food Chem1971,19,5:1
10Histologic Changes After Urethroplasty Using Small Intestinal Submucosa Unseeded With Cells in Rabbits With Injured Urethra显示文摘Gustavo Martín Villoldo Mónica Loresi Carlos Giudice Oscar Damia Juan Manuel Moldes Francisco DeBadiola Mariana Barbich Pablo Argibay 2013Urology2013,,6:1
11Simple model of compound waveguide structures used as optic sensors 显示文摘Oscar Esteban M Cruz Navarrete Agustin Gonalez- Cano ct al 2000Optics and Lasers in Engineering2000,33,:1
12Pulsed electric fields effects on the molecular structure and gelation of β-lactoglobulin concentrate and egg white显示文摘Oscar E Perez Ana M R Pilosof 2004Food Research International2004,37,:1
13A light-weight authentica- tion scheme for wireless sensor networks 显示文摘OSCAR D M AMPARO F S JOSE M S 2011Ad Hoc Networks2011,9,5:1
14Xenon liquid-jet laser-plasma source for EUV li- thography显示文摘BJORN A M HANSSON M B OSCAR H G el al 2000SPIE2000,3997,:1
15A Novel Blind Multiple Watermarking Technique for Images显示文摘Peter H w Wong Oscar C Au Y M Yeung 2003IEEE Transactions on Circuits and Systems for Video Teehnology2003,13,8:1
16intelligent adaptive model-based control of robotic dynamic systems with a hybrid fuzzy-neural approach 显示文摘Castillo Oscar Patricia M 2003Applied Soft Computing Journal2003,3,4:1
17A thinning algorithm for GPS-based unbiased FIR estimation of a clock TIE model显示文摘Yuriy S S Oscar I M Luis A M 2008Measurement2008,41,:1
18Effect of fish predation on intertidal benthic fauna is modified by crab bioturbation显示文摘PAULINA M OSCAR I GABRIELA P 2005Journal of Experimental Marine Biology and Ecology2005,318,1:1
19Highly efficient predictive zonal algorithms for fast block-matching motion estimation 显示文摘 Au Oscar C Liou Ming L 2002IEEE Trans CSVT2002,12,10:1
20Effect of a supervised exercise and physiotherapy program on surgical interventions in children with thermal injury显示文摘Mario M Oscar E Ted T 2003J Bum Care Rehabil2003,24,:1
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