References of "Pirotte, Bernard"
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See detailLes canaux potassiques ATP-dépendants : nouvelles cibles potentielles pour le traitement de divers troubles métaboliques
Florence, X.; De Tullio, Pascal ULg; Lebrun, Ph. et al

Conference (2009, February 03)

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See detailA short series of antidiabetic sulfonylureas exhibit multiple ligand PPARgamma-binding patterns
Arrault, Alban; Rocchi, Stéphane; Picard, Frédéric et al

in Biomedicine & Pharmacotherapy (2009), 63

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See detailNew R/S-3,4-dihydro-2,2-dimethyl-2H-1-benzopyrans as KATP channel openers: modulation of the 4-position
Florence, Xavier ULg; Sebille, Sophie; De Tullio, Pascal ULg et al

in Bioorganic & Medicinal Chemistry (2009), 17

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See detailCoumarinic derivatives show anti-inflamatory effects on alveolor macrophages, but their anti-elastase activity is essential to reduce lung inflammation in vivo
Bissonnette, E. Y.; Tremblay, G. M.; Turmel, V. et al

in International Immunopharmacology (2009), 9

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See detailIs thrombin generation the new rapid, reliable and relevant pharmacological tool for the development of anticoagulant drugs ?
Robert, S.; Ghiotto, J.; Pirotte, Bernard ULg et al

in Pharmacological Research (2009), 59

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See detailOriginal cromakalim analogues as KATP channel openers
Florence, Xavier ULg; De Tullio, Pascal ULg; Pirotte, Bernard ULg et al

in Metabolic and Functional Research on Diabetes (2009), 2

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See detail6-Substituted 2-Oxo-2h-1-Benzopyran-3-Carboxylic Acid Derivatives in a New Approach of the Treatment of Cancer Cell Invasion and Metastasis
Kempen, I.; Hemmer, Marc ULg; Counerotte, Stéphane ULg et al

in European Journal of Medicinal Chemistry (2008), 43(12), 2735-50

Novel 6-substituted 2-oxo-2H-1-benzopyran-3-carboxylic acid derivatives were synthesized and their potency in reducing the invasive behaviour of HT 1080 fibrosarcoma cells was evaluated. Structure ... [more ▼]

Novel 6-substituted 2-oxo-2H-1-benzopyran-3-carboxylic acid derivatives were synthesized and their potency in reducing the invasive behaviour of HT 1080 fibrosarcoma cells was evaluated. Structure-activity relationships were deduced from biological results and will be used in further design of new active compounds. In particular, the acetoxymethyl substituent found at the 6-position of previously described active compounds can be replaced by an acetamidomethyl substituent without loss of potency; while the presence of an aryl ester function at the 3-position was preferred to a thioester or an amide function to induce marked biological activity. This work confirms the interest of aryl esters of 6-substituted coumarin-3-carboxylic acids as potential new anti-cancer agents. [less ▲]

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See detail1H NMR metabolomic approach of the laser-induced choroidal neovascularization in mice
Lambert, Vincent ULg; Frederich, Michel ULg; Rousseau, Rousseau et al

Poster (2008, August)

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See detail6-Substituted benzopyran derivatives as potent KATP channel openers: synthesis and biological in vitro evaluation
Florence, X.; De Tullio, Pascal ULg; Lebrun, P. et al

Poster (2008, May)

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See detailInhibitory effect of curcuminoids and tetrahydrocurcuminoids on equine activated neutrophils and myeloperoxidase activity
Franck, Thierry ULg; Kohnen, Stephan ULg; Grulke, Sigrid ULg et al

in Physiological Research (2008), 57(4), 577-587

In the horse, the inflammation response to various pathologies (intestinal strangulations, laminitis, etc.) involves an excessive stimulation of the polymorphonuclear neutrophils releasing reactive oxygen ... [more ▼]

In the horse, the inflammation response to various pathologies (intestinal strangulations, laminitis, etc.) involves an excessive stimulation of the polymorphonuclear neutrophils releasing reactive oxygen species (ROS) and myeloperoxidase (MPO). The aim of the present work was to study the effect of natural polyphenols, curcuminoids and tetrahydrocurcuminoids (THC) on isolated stimulated equine neutrophils and on the activity of purified MPO. The ROS production and the release of MPO by activated neutrophils were measured by chemiluminescence and ELISA techniques, respectively. The activity of purified MPO was measured by studying its nitration, chlorination or oxidation capacity and by using an original method called SIEFED allowing the study of drug interaction with the enzyme without interferences of the medium. Curcuminoids and THC had dose-dependent inhibitory effects on ROS production and MPO release by activated neutrophils and on purified MPO activity. We suggest that the higher efficacy of curcuminoids versus THC could be explained, at least partially, by its chemical structure: the conjugated double bounds and the plane structure of curcuminoids made easier the neutralization of the radical species generated by activated neutrophils and the interaction of the drug with the active site of MPO. These inhibitory effects of curcuminoids on the oxidant activity of equine neutrophils and on MPO activity open therapeutic perspectives in equine pathologies with excessive inflammatory reactions. [less ▲]

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