Search results for "tea"

High-content imaging technology for the evaluation of drug-induced steatosis using a multiparametric cell-based assay.

2012

In the present study, we developed a cell-based protocol for the identification of drugs able to induce steatosis. The assay measures multiple markers of toxicity in a 96-well plate format using high-content screening (HCS) technology. After treating HepG2 cells with increasing concentrations of the tested compounds, toxicity parameters were analyzed using fluorescent probes: BODIPY493/503 (lipid content), 2',7'-dihydrodichlorofluorescein diacetate (reactive oxygen species [ROS] generation), tetramethyl rhodamine methyl ester (mitochondrial membrane potential), propidium iodide (cell viability), and Hoechst 33342 (nuclei staining). A total of 16 drugs previously reported to induce liver ste…

Inhibition of stearoyl-CoA desaturase 1 expression induces CHOP-dependent cell death in human cancer cells.

2010

Background Cancer cells present a sustained de novo fatty acid synthesis with an increase of saturated and monounsaturated fatty acid (MUFA) production. This change in fatty acid metabolism is associated with overexpression of stearoyl-CoA desaturase 1 (Scd1), which catalyses the transformation of saturated fatty acids into monounsaturated fatty acids (e.g., oleic acid). Several reports demonstrated that inhibition of Scd1 led to the blocking of proliferation and induction of apoptosis in cancer cells. Nevertheless, mechanisms of cell death activation remain to be better understood. Principal Findings In this study, we demonstrated that Scd1 extinction by siRNA triggered abolition of de nov…

Ensemble-based ADME-Tox profiling and virtual screening for the discovery of new inhibitors of the Leishmania mexicana cysteine protease CPB2.8ΔCTE

2018

Abstract: In an effort to identify novel molecular warheads able to inhibit Leishmania mexicana cysteine protease CPB2.8CTE, fused benzo[b]thiophenes and ,'-triketones emerged as covalent inhibitors binding the active site cysteine residue. Enzymatic screening showed a moderate-to-excellent activity (12%-90% inhibition of the target enzyme at 20m). The most promising compounds were selected for further profiling including in vitro cell-based assays and docking studies. Computational data suggest that benzo[b]thiophenes act immediately as non-covalent inhibitors and then as irreversible covalent inhibitors, whereas a reversible covalent mechanism emerged for the 1,3,3'-triketones with a Y-to…

α-Secretase Activity of the Disintegrin Metalloprotease ADAM 10: Influences of Domain Structure

2001

Disintegrin metalloproteases from different organisms form the ADAM (a disintegrin and metalloprotease) family. All members display a common domain organization and possess four potential functions: proteolysis, cell adhesion, cell fusion, and cell signaling. Members of the ADAM family are responsible for the proteolytic cleavage of transmembrane proteins and release of their extracellular domain. The proteolytic process is referred to as ectodomain shedding, which is activated by phorbol esters and inhibited by hydroxamic acid-based inhibitors. We have shown that the disintegrin metalloprotease ADAM 10 has both constitutive and regulated alpha-secretase activity. Expression of a dominant n…

Lafora disease fibroblasts exemplify the molecular interdependence between thioredoxin 1 and the proteasome in mammalian cells

2013

13 páginas, 8 figuras (que no aparecen en este documento, se pueden consultar en: http://www.sciencedirect.com/science/article/pii/S0891584913003274#ec0005)

Bang drums until the cement softens : International music collaboration in Palestine

2019

The Caribbean Plateau and OAE2: Resolution of timing and trace metal release

2013

Volatile components of Centaurea bracteata and C. pannonica subsp. pannonica growing wild in Croatia.

2010

This paper reports on the volatile components of oils from the aerial parts (CBA) and roots (CBR) of Centaurea bracteata Scop. and aerial parts of C. pannonica (Heuffel) Simonkai subsp. pannonica (CPA), two Asteraceae growing wild in Croatia. The volatile components, obtained by hydrodistillation, were determined by GC-MS analysis. The yields (w/w) of the dried oils were 0.10% (CBA), 0.22% (CBR) and 0.09% (CPA), respectively. A total of 91 compounds were identified accounting for 91.1%, 93.3% and 87.9% of the total oil for CBA, CBR and CPA, respectively. All the samples were characterized mainly by hydrocarbons (7.1-34.1%), fatty acids (9.7-45.9%), and oxygenated sesquiterpenes (15.2-16.6%)…

Teachers’ Job Satisfaction: Findings from TALIS 2013 Study

2015

<p><em>This paper examines teachers’ satisfaction with their profession and work environment in relation to other environmental factors in schools. Latvian data from the OECD TALIS 2013 study are used in the data analysis. The aim of the study was to find out whether there is any relationship between teacher satisfaction with their work environment and profession and a varietyofvariablescharacterizingschoolsandstudents. The research question is: what are the most important factors associated with teachers' satisfaction with their job at school? Applied research methods are frequency analysis and measures of central tendency. The results of the research reveal that overall Latvia…

I festeggiamenti per le incoronazioni a Palermo di Vittorio Amedeo II (1713) e Carlo III (1735): musica, spettacolo e cerimonia

2018

Le entrate e le rispettive incoronazioni a Palermo di Vittorio Amedeo II di Savoia e Carlo III di Borbone sono state analizzate sotto diversi punti di vista. Tuttavia gli aspetti musicali sono stati finora poco considerati, se non a margine di studi più generali sulla vita musicale palermitana. Il presente contributo è riservato in modo specifico alla cornice sonora dei due eventi, dimostrando come questa costituisse un elemento essenziale al funzionamento della festa e al soddisfacimento dei suoi scopi. Le descrizioni e le testimonianze iconografiche propongono spunti di indagine sulle modalità di esecuzione e sui rapporti con il contesto celebrativo, fornendo anche informazioni sulle occa…