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Query: "author" (Marjetka Ur%C5%A1i%C4%8D-Vr%C5%A1%C4%8Daj) .

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11.
Detection of early lung cancer lesions in surgical resections and in bronchial and transbronchial biopsies
Tomaž Rott, Maja Jerše, Marjeta Terčelj-Zorman, Janez Eržen, 2006, published scientific conference contribution (invited lecture)

Abstract: Background. Overall bad progmpsis of lung is mostly due to too late detection of early lung cancer, which may be teated with good success. Therefore different diagnostic methods are developing for more efficient detection of early lung cancer: besides modern radiological, bronchoscopic methods with additional fluorescence techniques, quantitative cytological investigations, also histological and molecular investigations are included. History may reveal early preinvasive lung xcancer lesions, associated early during multistep lung carcinogemesis with molecular genetic changes. Patients and methods. Preinvasive epithelial lung cancer lesions we searched in two groups of patients. In the first group of 316 patients from the period March 2003 - August 2006, 498 bronchial and transbronchial biopsies were examined for squamous metaplasia and dysplasia, carcinoma in situ, and invasive tumours. Inthe second group of 238 patients from the period January 2004 - August 2006,resected primary lung tumours were analysed for preinvasive neuroendocrine tumours and atypical adenomatous hyperplasia. Resuots. The mostfrequent changes in bronchial and transbronchial biopsies were squamous metaplasia (46.5%), simple or goblet cell hyperplasia of the bronchial epithelium (44.3%), malignant tumours (20.66%) and squamous dysplasia (16.1%),but rare carcinoma in situ (0.63%). Diffuse idiopoathic pulmonary neuroendocrine cell hyperplasia was found in 15 (6.3%) cases in the vicinity of 238 resected lung cancer specimens, carcinoid in12 patients (5%), and mostly combined large neuroendocrine cancer in 21 patients (8.8%). Atypical denomatous hyperplasia was found in 2 patients. Conculsions. Classical histological analysis should be focused on detection of early preinvasive epithelial lung cancer lesions. (Abstract truncated at 2000 characters).
Published in DiRROS: 05.12.2023; Views: 160; Downloads: 44
.pdf Full text (1,11 MB)

12.
Pomen humanih virusov papiloma pri odkrivanju in preprečevanju raka materničnega vratu - kje smo danes
Marjetka Uršič-Vrščaj, Sonja Bebar, Andrej Možina, Stelio Rakar, Iztok Takač, Vida Stržinar, Aleš Vakselj, 2006, published professional conference contribution

Abstract: Izhodišča. S pomočjo organiziranih programov presejanja se je zmanjšala umrljivost zaradi raka materničnega vratu. Humani virusi papiloma (HPV) povzročajo predrakave spremembe in raka materničnega vratu. Številne ugotovitve kažejo, da je z vključevanjem testa HPV mogoče izboljšati uspešnost presejalnih programov. Test HPV se omenja pri presejanju, pri triažiranju bolnic z začetno patološkimi brisi materničnega vratu in po zdravljenju predrakavih sprememb. Visoka negativna napovedna vrednost dvakrat negativnega testa, testa PAP in testa HPV, naj bi na področju presejanja omogočala določene spremembe, kot so podaljševanje priporočenega rednega intervala presejanja, prilagajanje starosti ter ponovno presejanje po zdravljenju predrakavih sprememb. Test HPV je klinično pomemben pri triažiranju žensk s ponavljajočimi se atipičnimi ploščatimi celicami, pri katerih je potrebna kolposkopija. Zaradi visoke prevalence okuženosti s HPV se test HPV kaže kot omejitev pri zelo mladih ženskah z blago diskariotičnimi celicami. Zaključki. Ugotovitve o HPV nakazujejo možnosti za preprečevanje raka materničnega vratu na področju profilaktičnega cepljenja. V svetovnem merilu HPV 16 in 18 povzročata 70 % raka materničnega vratu. V prihodnjem letu naj bi bili dostopni dve profilaktični cepivi, učinkoviti proti HPV 16 in 18.
Published in DiRROS: 05.12.2023; Views: 200; Downloads: 44
.pdf Full text (288,82 KB)

13.
Presejanje za raka materničnega vratu v Sloveniji in državni program ZORA
Maja Primic-Žakelj, Vesna Zadnik, Ana Pogačnik, Marjetka Uršič-Vrščaj, 2006, professional article

Published in DiRROS: 05.12.2023; Views: 113; Downloads: 39
.pdf Full text (345,20 KB)

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Bacillus thuringiensis toxin Cyt2Aa forms filamentous oligomers when exposed to lipid membranes or detergents
Gašper Šolinc, Gregor Anderluh, Marjetka Podobnik, 2023, original scientific article

Published in DiRROS: 11.07.2023; Views: 307; Downloads: 192
.pdf Full text (1,89 MB)
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16.
Effect of laser texturing pattern on Ti6Al4Vtribocorrosion in a physiological solution
Marjetka Conradi, Tadeja Kosec, Bojan Podgornik, Aleksandra Kocijan, Janez Kovač, Damjan Klobčar, 2022, original scientific article

Abstract: Laser texturing is a process that alters a material’s surface properties by modifying its morphology, which can improve properties like adherence, wettability, thermal and electrical conductivity and friction. Here, the effect of laser texturing was studied on an alpha-beta titanium alloy (Ti6Al4V) biomedical material. Two types of patterned surfaces, cross-hatch with varying scan-line separations, Dx = 100, 180 and 280 μm and dimples of 200 μm size, were prepared on the surface of alpha-beta titanium alloy by laser technology. Prepared samples were characterised for their surface properties, such as corrosion, wear-induced corrosion, friction and wettability. Electrochemical and tribocorrosion properties in a physiological solution were studied on the samples with different texture densities of cross-hatch pattern and dimples and compared to the as-received alpha-beta titanium alloy surface. Corrosion rate decreased for laser-textured samples, especially for cross-hatch texture (down to 1 μm/year for Dx = 180 μm) when compared to the as-received alpha-beta titanium alloy surface due to the changed laser-induced surface film and wetting properties. Friction coefficient slightly decreased for all laser-textured surfaces, most noticeably for cross-hatch patterns, from 0.38 (as-received) down to 0.34 (Dx = 180 and 280 μm). The main contribution to total wear in physiological solution increased due to the mechanical wear, which is governed by the removal of the surface oxide layer induced by laser texturing.
Keywords: TiAIV, laser texturing, tribocorrosion, open access
Published in DiRROS: 17.05.2023; Views: 269; Downloads: 109
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17.
Analiza vprašalnikov o kakovosti življenja med kemoterapijo, beleženih v okviru mobilne aplikacije Onkoved
Marjetka Sraka, Ema Grašič, Nina Privšek, Cvetka Grašič-Kuhar, 2022, published professional conference contribution abstract

Keywords: onkologija, rak dojke, kemoterapija
Published in DiRROS: 03.02.2023; Views: 362; Downloads: 84
.pdf Full text (46,42 KB)

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Poročanje o neželenih učinkih med zdravljenjem s kemoterapijo : analiza raziskave Onkoved
Nina Privšek, Tina Zupančič, Ema Grašič, Marjetka Sraka, Klara Grad, Timotej Kovač, Matjaž Kukar, Cvetka Grašič-Kuhar, 2022, published scientific conference contribution

Abstract: Zdravljenje s kemoterapijo je povezano s številnimi stranskimi učinki, ki so večinoma blagi in prehodne narave. Objektiviziramo jih glede na 5. izdajo skupnih terminoloških kriterijev za neželene učinke (angl. Common terminology criteria for adverse events; CTCAE). V zadnjih letih so v klinično uporabo vstopile tudi lestvice za bolnikovo poročanje neželenih učinkov (npr. PRO-CTCAE; angl. Patient reported outcomeCommon terminology criteria for adverse events). Raziskave, ki so do sedaj primerjale zdravnikova in bolnikova poročila o stranskih učinkih, so ugotovile, da zdravniki poročajo statistično značilno manj simptomov in nižje graduse kot bolniki. Nadalje je bilo ugotovljeno tudi, da tesnejši nadzor nad stranskimi učinki privede do hitrejše razrešitve težjih oblik le-teh. V pričujočem prispevku predstavljamo rezultate raziskave, ki smo jo izvedli na Onkološkem inštitutu Ljubljana za oceno stopnje pojavnosti ter razlik v beleženju stranskih učinkov s strani zdravnikov in bolnikov. V sklopu raziskave smo ocenjevali tudi kakovost življenja med zdravljenjem s kemoterapijo in doprinos uporabe mobilne aplikacije k učinkovitejšem obvladovanju stranskih učinkov v vsakdanji klinični praksi.
Keywords: neželeni učinki, bolniki, sistemsko zdravljenje
Published in DiRROS: 17.01.2023; Views: 460; Downloads: 98
.pdf Full text (515,71 KB)

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