Felipe Lozano Pineda

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A series of bivalent thrombin inhibitors was synthesized, consisting of a d-phenylalanyl-prolyl-N(alpha)(methyl)arginyl active site blocking segment, a fibrinogen recognition exosite inhibitor part, and a peptidic linker connecting these fragments. The methylation of the P1 amino acid led to a moderate decrease in affinity compared with the unmethylated(More)
Highly potent bradykinin antagonists were found to inhibit bradykinin-induced release of cytokines but to stimulate histamine release. Both actions show structural requirements completely different from those for bradykinin B1 and B2 receptors, indicating that the release of some cytokines from spleen mononuclear cells and of histamine from rat mast cells(More)
2. Kawahara T, Iizuka T. Inhibitory effect of hot-water extract of quince (Cydonia oblonga) on immunoglobulin E-dependent late-phase immune reactions of mast cells. Cytotechnology. 2011;63:143--52. 3. Gründemann C, Papagiannopoulos M, Lamy E, MerschSundermann V, Huber R. Immunomodulatory properties of a lemon-quince preparation (Gencydo®) as an indicator of(More)
Introduction: Systemic lupus erythematosus is a chronic, autoimmune, multisystem disease of unknown aetiology, and in which the frequency of alterations in bone mineral density varies between 25% and 74%, although its diagnosis is not standardized. Objective: To describe the densitometric changes in systemic lupus erythematosus patients, as well as the(More)
Multitarget approaches, i.e., addressing two or more targets simultaneously with a therapeutic agent, are hypothesized to offer additive therapeutic benefit for the treatment of neurodegenerative diseases. Validated targets for the treatment of Parkinson's disease are, among others, the A2A adenosine receptor (AR) and the enzyme monoamine oxidase B (MAO-B).(More)
8-Benzyl-substituted tetrahydropyrazino[2,1-f]purinediones were designed as tricyclic xanthine derivatives containing a basic nitrogen atom in the tetrahydropyrazine ring to improve water solubility. A library of 69 derivatives was prepared and evaluated in radioligand binding studies at adenosine receptor (AR) subtypes and for their ability to inhibit(More)
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