Search results for "Polyp"
showing 10 items of 1415 documents
Risk of villous histology or high grade dysplasia in patients with diminutive polyps: influence of number of polyps
2010
INTRODUCTION/OBJECTIVES: Current recommendations on post-polypectomy surveillance recommend shorter intervals in case of 3 or more polyps, irrespectively of histological findings (see reference below). These recommendations doesn't differentiate between diminutive (1-5 mm) polyps and polyps of larger size (>5 mm). AIMS & METHODS: Aim of the present study was to assess, in a group of patients with "isolated" diminutive polyps, i.e. without associated polyps of larger size, if the presence of 3 or more diminutive polyps is associated with higher number of polyps with villous histology (VH) or high grade dysplasia (HGD). Retrospective examination of endoscopical records and of histopathologica…
Clinical Significance Of Isolated Diminutive Colonic Polyps
2010
INTRODUCTION/OBJECTIVES: Several reports have assessed clinical significance of diminutive (1-5 mm) polyps; here we report on the prevalence of advanced histology in patient with "isolated" diminutive polyps, i.e. without associated polyps of larger size. AIMS & METHODS: Retrospective examination of endoscopy records and of histopathology records of patients with polyps of any size. Advanced histology was defined as the presence of high grade dysplasia (HGD) or in situ carcinoma. Polyps were categorized into three groups: diminutive (1-5 mm); small (6-10 mm) and large (11 mm or more). Diminutive Small Large Advanced Carcinoma Number 315 89 67 84 Male (%) 205 (62) 57 (64) 46 (68) 52 (62) Mea…
Understanding the Excited State Behavior of Cyclometalated Bis(tridentate)ruthenium(II) Complexes: A Combined Experimental and Theoretical Study
2015
The synthesis and characterization of the donor-acceptor substituted cyclometalated ruthenium(II) polypyridine complex isomers [Ru(dpb-NHCOMe)(tpy-COOEt)](PF6) 1(PF6) and [Ru(dpb-COOEt)(tpy-NHCOMe)](PF6) 2(PF6) (dpbH = 1,3-dipyridin-2-ylbenzene, tpy = 2,2';6,2"-terpyridine) with inverted functional group pattern are described. A combination of resonance Raman spectroscopic and computational techniques shows that all intense visible range absorption bands arise from mixed Ru → tpy/Ru → dpb metal-to-ligand charge transfer (MLCT) excitations. 2(PF6) is weakly phosphorescent at room temperature in fluid solution and strongly emissive at 77 K in solid butyronitrile matrix, which is typical for r…
Poster Presentation
2009
Polyvinylpolypyrrolidone‐Stabilized Copper Nanoparticles as an Efficient and Recyclable Heterogeneous Catalyst for the Click of 1,2,3‐Triazoles in Wa…
2019
An unexpected biomaterial against SARS-CoV-2: Bio-polyphosphate blocks binding of the viral spike to the cell receptor.
2021
Graphical abstract
The Lord’s Resistance Army and the arms that brought the Lord
2019
This article develops the notion of polyphonic silence as a means for thinking through the ethical and political ramifications of ethnographically encountering and writing about silenced violent pasts. To do so, it analyses and contrasts the silence surrounding two periods of extreme violence in northern Uganda: 1) the northern Ugandan war (1986–2006), which is contemporarily often shrouded by silence, and 2) the early decades of colonial and missionary expansion, which the Catholic church silences in its commemoration of the death of two Acholi catechists in 1918. Employing the notion of polyphony, the article describes how neither of these silences is a mere absence of narration. Instead,…
Bioaccessibility and bioavailability of bioactive compounds from yellow mustard flour and milk whey fermented with lactic acid bacteria.
2021
Microbial fermentation with lactic acid bacteria (LAB) is a natural food biopreservation method. Yellow mustard and milk whey are optimum substrates for LAB fermentation. The aim of the present study was to evaluate the bioaccessibility and bioavailability of bioactive compounds from yellow mustard flour and milk whey both with and without LAB fermentation. All extracts were subjected to a simulated digestion process. Total polyphenols, DL-3-phenyllactic acid (PLA), lactic acid, and the antioxidant activity were determined in the studied matrices before and after simulated digestion. Yellow mustard flour was significantly richer in total polyphenols, whereas significantly higher concentrati…
Applications of Electromigration Techniques: Applications of Electromigration Techniques in Food Analysis
2013
Electromigration techniques, including capillary electrophoresis (CE), are widely used for separation and identification of compounds present in food products. These techniques may also be considered as alternate and complementary with respect to commonly used analytical techniques, such as high-performance liquid chromatography (HPLC), or gas chromatography (GC). Applications of CE concern the determination of high-molecular compounds, like polyphenols, including flavonoids, pigments, vitamins, food additives (preservatives, antioxidants, sweeteners, artificial pigments) are presented. Also, the method developed for the determination of proteins and peptides composed of amino acids, which …
The effect of thermal drying on the contents of condensed tannins and stilbenes in Norway spruce (Picea abies [L.] Karst.) sawmill bark
2021
Norway spruce (Picea abies (L.) Karst.) bark contains marked amounts of polyphenolic compounds. Condensed tannins (CTs) and stilbenes show commercial potential as antioxidants, antimicrobials, preservatives in food and cosmetic applications, technochemical products, and pharmaceuticals. Storing of bark before the conversion process leads to substantial losses of extractives compounds. In the present study, the potential of thermal drying for maintaining extractives content was assessed based on an experiment in which bark samples were dried in convection kilns at 40, 50, 60, and 70 °C temperatures. The development of CTs and stilbene contents and CT degradation were followed for 28–34 h. CT…