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Pathophysiological and clinical aspects of gastric hyperplastic polyps

World Journal of Gastroenterology 2016年第40期22卷 8883-8891页

作者： Adam Roman Markowski agnieszka markowska Katarzyna Guzinska-Ustymowicz Department of Internal Medicine and Gastroenterology Polish Red Cross Memorial Municipal Hospital Department of Organic Chemistry Medical University of Bialystok Department of General Pathomorphology Medical University of Bialystok

Gastric polyps become a major clinical problem because of high prevalence and tendency to malignant transformation of some of them. The development of gastric hyperplastic polyps results from excessive proliferation of foveolar cells accompanied by their increased exfoliation, and they are macroscopically indistinguishable from other polyps with lower or higher malignant potential. Panendoscopy allows detection and differentiation of gastric polyps, usually after obtaining histopathological biopsy specimens. Unremoved gastric hyperplastic polyps may enlarge and sometimes spontaneously undergo a sequential progression to cancer. For this reason, gastric hyperplastic polyps larger than 5 mm in size should be removed in one piece. After excision of polyps with atypical focal lesion, endoscopic surveillance is suggested depending on histopathological diagnosis and possibility of confirming the completeness of endoscopic resection. Because of the risk of cancer development also in gastric mucosa outside the polyp, neighboring fragments of gastric mucosa should undergo microscopic investigations. This procedure allows for identification of patients who can benefit most from oncological endoscopic surveillance. If Helicobacter pylori(H. pylori) infection of the gastric mucosa is confirmed, treatment strategies should include eradication of bacteria, which may prevent progression of intestinal metaplasia. The efficacy of H. pylori eradication should be checked 3-6 mo later.

关键词： Gastric hyperplastic polyp Pathophysiology Gastric cancer Surveillance

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Persistent luminescence from Y3Al2Ga3O12 doped with Ce3+ and Cr3+ after X-ray and blue light irradiation

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Journal of Rare Earths 2019年第11期37卷 1200-1205页

作者： V.Boiko J.Zeler M.markowska Z.Dai A.Gerus P.Bolek E.Zych D.Hreniak Institute of Low Temperature and Structure Research Polish Academy of SciencesOkolna 2PL-50-422 WroclawPoland Faculty of Chemistry University of WroclawF.Joliot-Curie 14PL-50-383 WroclawPoland

The persistent luminescence(PersL)dependence on the dopants and derived mechanism of trapping and de-trapping processes were investigated in Y3Al2Ga3O12(YAGG)based nanophosphor,doped with Ce^3+and/or Cr^3+.It is found that the presence of Cr^3+ions produce electron and hole traps and capture suitable charge after X-ray *** effect of irradiation on the carriers trapping and their pathways after excitation was studied by means of thermo luminescence *** the other hand,for blue light irradiation the mechanism seems to be *** the latter case,the Ce^3+ions,having the position of energy levels in the conduction band,become sensitizers for the electrons and main emission centres for the PersL(de-trapping process goes through Ce^3+).

关键词： Persistent luminescence Thermoluminescence YAGG nanophosphors Lanthanides X-ray Blue-light irradiation

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Optical studies of Y3（Al,Ga）5O12:Ce3+,Cr3+,Nd3+ nano-phosphors obtained by the Pechini method

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Journal of Rare Earths 2019年第11期37卷 1132-1136页

作者： Z.Dai V.Boiko M.markowska A.Gerus K.Grzeszkiewicz J.Holsa M.L.Saladino D.Hreniak Institute of Low Temperature and Structure Research Polish Academy of SciencesOkolna 2.PL-50-422 WroctawPoland Department of Physics University of the Free StateBloemfontein ZA-9300South Africa Department of Biological Chemical and Pharmaceutical Sciences and Technologies(STEBICEF)University of PalermoViale delle ScienzeBld.171-90128 PalermoItaly

The Y3(AI,Ga)5O12:Ce^3+,Cr^3+,Nd^3+(YAGG)nano-phosphors with homogeneous particle-size distribution,low aggregation and average crystalline size of about 65 nm were obtained using a modified Pechini *** slight aggregation of the crystallites occurs after post-annealing at 1100℃.The intense Ce^3+bands in the excitation spectra of the Ce^3+,Cr^3+,Nd^3+co-doped materials monitoring the Cr^3+emission at 690 nm indicate energy transfer from Ce^3+to Cr^3+.Weak Nd^3+lines are observed,as *** addition,the emission of Nd^3+at 1060 nm with excitation of Ce^3+and Cr^3+confirms the Ce^3+/Cr^3+to Nd^3+energy *** short average luminescence decay times for the Ce^3+emission indicate the Ce^3+/Cr^3+to Nd^3+energy ***,the Y3(AI,Ga)5O12:Ce^3+,Cr^3+,Nd^3+nano-phosphors exhibit persistent luminescence originating from the 4f^3→4f^3 transitions of Nd^3+which matches well to the first biological window to be used in bioimaging applications.

关键词： Nano-phosphors Ce^3+ NIR persistent luminescence Thermoluminescence Rare earths

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Individual Differences in Aging: Behavioral and Neural Analyses

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Biomedical and Environmental Sciences 1991年第1期4卷 166-172页

作者： DAVID S.OLTON ALICJA markowska STEVEN J.BRECKLER GARY L.WENK KEVIN C.PANG VASSILISKOLIATSOS Department of Psychology The Johns Hopkins University BaltimoreDepartment of Psychology The Johns Hopkins University BaltimoreDepartment of Psychology The Johns Hopkins University BaltimoreDepartment of Psychology The Johns Hopkins University BaltimoreDepartment of Psychology The Johns Hopkins University BaltimoreDepartments of Pathology and Neurology The Johns Hopkins University Baltimore Maryland 21218Maryland 21218Maryland 21218 Maryland 21218 Maryland 21218 Maryland 21205

Aged populations have remarkable variability in recent memory and cognitive mapping. Although some individuals may have substantial age-related impairments, others perform almost as well as young individuals. This paper reviews the relevant data on aged rats and indicates two challenges for biomarkers of aging. The first is to provide an appropriate quantitative description of these individual differences. The second is to use them effectively as markers for age-related changes in psychological functions and their neural substrates.

关键词： Behavioral and Neural Analyses

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Individual Differences in Aging: Behavioral and Neural Analyses

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Biomedical and Environmental Sciences 1991年第Z1期 166-172页

作者： DAVID S.OLTON,ALICJA markowska,STEVEN J.BRECKLER,GARY L.WENK,KEVIN C.PANG,VASSILISKOLIATSOS Department of Psychology The Johns Hopkins University Baltimore Department of Psychology The Johns Hopkins University Baltimore Department of Psychology The Johns Hopkins University Baltimore Department of Psychology The Johns Hopkins University Baltimore Department of Psychology The Johns Hopkins University Baltimore Departments of Pathology and Neurology The Johns Hopkins University Baltimore Maryland 21218 Maryland 21218 Maryland 21218 Maryland 21218 Maryland 21218 Maryland 21205

关键词： Behavioral and Neural Analyses

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12岁女孩原发性甲状腺神经鞘瘤1例

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世界核心医学期刊文摘（儿科学分册） 2005年第2期1卷 54-54页

作者： Baglaj M. markowska-Woyciechowska A. Sawicz-Birkowska K. Dorobisz U. 王一飞 Department of Pediatric SurgeryWroclaw Medical University WroclawPoland

报道1例12岁女孩的甲状腺神经鞘瘤病例。该神经鞘瘤因入院前无症状的左侧颈部下方肿胀9个月而被发现。

关键词：甲状腺神经鞘瘤左侧颈部左叶无症状超声扫描实体性病理学检查除叶低回声组织结构

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