Tadeusz Karcz

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Schizophrenia is a mental illness characterized by behavioral changes as well as anatomical and neurochemical abnormalities. There has been remarkable progress in the drug discovery for schizophrenia; however, antipsychotics that act through molecular targets, other than monoaminergic receptors, have not been developed. One of the hypotheses of(More)
A series of twelve novel non-imidazole-based ligands (3-14) was developed and evaluated for its in vitro binding properties at the human histamine H3 receptor (hH3R). The novel ligands were investigated for their in vivo protective effects in different seizure models in male adult rats. Among the H3R ligands (3-14) tested, ligand 14 showed significant and(More)
Based on our recent finding that α1 selective GABA-A receptor potentiator-zolpidem-(a hypnotic drug) exerts antipsychotic-like effects in rats, we developed a series of fluorinated imidazo[1,2-a]pyridine derivatives as potential novel antipsychotic agents. The selected compounds displayed high affinity and positive allosteric modulator properties at the(More)
Syntheses and biological activities of imidazo-, pyrimido- and diazepino[2,1-f]purinediones containing N-alkyl substituents (with straight, branched or unsaturated chains) are described. Tricyclic derivatives were synthesized by the cyclization of 8-bromo-substituted 7-(2-bromoethyl)-, 7-(3-chloropropyl)- or 7-(4-bromobutyl)-theophylline with primary amines(More)
The G protein-coupled histamine H4 receptor (H4R) is the last member of histamine receptors family discovered so far. Its expression pattern, together with postulated involvement in a wide variety of immunological and inflammatory processes make histamine H4 receptor an interesting target for drug development. Potential H4R ligands may provide an innovative(More)
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