Search results for "zola"

The Influence of Single-Dose and Short-Term Administration of Quercetin on the Pharmacokinetics of Midazolam in Humans.

2015

Quercetin is a plant flavonol that is available from both daily diet and nutraceuticals. To investigate the effect of acute and short-term intake of high-dose quercetin on CYP3A-mediated metabolism, 10 healthy volunteers received 7.5 mg oral midazolam without, with a single dose of 1500 mg quercetin and after 1-week supplementation with 1500 mg quercetin daily. A substudy was performed in three subjects to explore the impact of repeated quercetin intake on intravenously administered midazolam. Coadministration with a single dose of quercetin did not significantly alter the pharmacokinetics of midazolam and its 1'-hydroxymetabolite, but following short-term quercetin intake, there was a tren…

Analysis of the chemical and microstructural modifications effects on the hydro-mechanical behaviour of a lime-treated clay

2019

The paper presents the results of a characterization of kinetic characteristics of pozzolanic reaction with the aim to investigate the time-dependent modification of clay properties as a consequence of mixing with lime. Results of chemical analyses are in agreement with the increase of mechanical properties and with the observed microstructure modifications up to one year of curing time. The rate of development of pozzolanic reactions seems to be almost constant while the time required for their completion is dependent on the lime content. Pozzolanic products are responsible for the time reduction of swelling strain upon saturation as well as for the increases of yielding stress, stiffness …

Distribution of chlorpromazine in a simplified blood influenced by various drugs

1973

The binding of chlorpromazine to erythrocytes and to albumin as influenced by other drugs was studied in a simplified blood (31.5±0.3% bovine erythrocytes, 4 g-% bovine serum albumin in 0.02 M phosphate buffer solution containing 0.15 M NaCl). the total concentration of chlorpromazine in the simplified blood was 10−4 M, the concentration of the displacing drugs was 10−3 M. After an incubation period of 3 h at 22° C the chlorpromazine concentration was determined in the albumin solution after centrifugation of the blood at 3000×g and in the aqueous phase after ultracentrifugation at 150000×g. Under control conditions 68.1±0.9% of chlorpromazine was bound to the erythrocytes, 28.5±0.9% was bo…

Ćwok, kiep i frajer, czyli postać głupiego męża we francuskiej prozie realistycznej i naturalistycznej

2017

The paper discusses the theme of a stupid husband in three texts of French Realism and Naturalism: a novel by Gustave Flaubert and two short stories by Emile Zola and Guy de Maupassant. The main reference for the analysis is a paper by Stefan Symotiuk who divides the category of “fools” into several subcategories, according to reasons and signs of their stupidity. In agreement with Symotiuk’s thought, Flaubert’s Charles Bovary can be considered as a “blockhead”, dull but always glad with himself; Zola’s Mr Chabre is a “dolt”, heavily thinking and likely to hoax; finally, Maupassant’s Mr Lantin is a “dupe”, easily cheated because unable to see things as they are. All the three characters can…

Effects of the benzodiazepine receptor agonist midazolam and antagonist flumazenil on 5-hydroxytryptamine release from guinea-pig intestine in vitro

1990

Isolated segments of the guinea-pig small intestine and the guinea-pig stomach were vascularly perfused and the release of 5-hydroxytryptamine (5-HT) and 5-hydroxyindoleacetic acid into the portal venous effluent determined by high pressure liquid chromatography with electrochemical detection. Test substances were applied intraarterially. The benzodiazepine receptor agonist, midazolam, concentration-dependently increased (by 58%, at 1 nmol/l) and decreased (by 32%, at 100 nmol/l) the release of 5-HT from small intestine preparations. Both effects were blocked by the benzodiazepine receptor antagonist flumazenil (10 nmol/l) The stimulatory effect of midazolam was also abolished in the presen…

El último intelectual / 3

2007

Efficient Expression and Crystallization System of Cancer-Associated Carbonic Anhydrase Isoform IX.

2015

Human carbonic anhydrase IX (CA IX) is overexpressed in a number of solid tumors and is considered to be a marker for cellular hypoxia that it is not produced in most normal tissues. CA IX contributes to the acidification of the extracellular matrix, which, in turn, favors tumor growth and metastasis. Therefore, CA IX is considered to be a promising anti-cancer drug target. However, the ability to specifically target CA IX is challenging due to the fact that the human genome encodes 15 different carbonic anhydrase isoforms that have a high degree of homology. Furthermore, structure-based drug design of CA IX inhibitors so far has been largely unsuccessful due to technical difficulties regar…

Physical and mechanical properties of sustainable hydraulic mortar based on marble slurry with waste glass

2021

This paper aims to propose and characterize a sustainable hydraulic mortar entirely obtained by the reuse of waste materials, with marble slurry coming from quarries in the north-western Sicily and glass powder coming from a waste collection plant in Marsala (Province of Trapani). The first was used as raw material to produce the mortar binder by a kilning and slaking process, while the second was used as a pozzolanic additive. The chemical and morphological characterization of the marble slurry was done by XRD, FTIR, STA and SEM analyses. Glass powder was analyzed through particle size distribution measurements, XRD and standard pozzolanic tests. Hydraulic mortars constituted by slaked lim…

Innovative Glaukomtherapie

2001

Lokale Karboanhydrasehemmer wurden mit Dorzolamid 1995 in die medikamentose Glaukomtherapie eingefuhrt. Im Jahr 2000 wurde nun ein zweiter topischer Karboanhydrasehemmer auf dem deutschen Markt eingefuhrt: Brinzolamid. Die augeninnendrucksenkende Wirkung beider Medikamente ist vergleichbar bei einem etwas unterschiedlichen Nebenwirkungsprofil. Die Breitenanwendung von Dorzolamid zeigt ein positives Nutzen/Risiko-Verhaltnis. Eine Kombinationstherapie mit lokalen Karboanhydrasehemmern bewirkt zusatzlich zu allen anderen topischen Glaukommedikamenten eine weitere Drucksenkung. Zudem liegen im Tierversuch erste Hinweise vor, dass Dorzolamid druckunabhangig die Durchblutungssituation am hinteren…

Update on topical carbonic anhydrase inhibitors

2001

Topical carbonic anhydrase inhibitors are a novel addition to the armamentarium of medical glaucoma treatment; dorzolamide has been available since 1995 and brinzolamide since 1998. They lower intraocular pressure by inhibiting carbonic anhydrase, a key enzyme for aqueous humor formation. Intraocular pressure-lowering activity of the substances appears to be the same and is similar to that of most other agents, but it does not reach the activity of the unselective beta-blocker timolol or the prostaglandin latanoprost. On concomitant treatment, additivity is reached with all other topical agents. A possible improvement of blood flow may offer an additional benefit, but its significance for t…