Wynik wyszukiwania w bazie Polska Bibliografia Lekarska GBL

Zapytanie: PETRUSEWICZ
Liczba odnalezionych rekordów: 3



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Tytuł oryginału: Antiaggregatory activity of hypoglycaemic sulphonylureas.
Autorzy: Siluk D., Kaliszan R., Haber P., Petrusewicz J., Brzozowski Z., Sut G.
Źródło: Diabetologia 2002: 45 (7) s.1034-1037, il., tab., bibliogr. 11 poz.
Sygnatura GBL: 312,048

Hasła klasyfikacyjne GBL:
  • endokrynologia
  • farmacja

    Typ dokumentu:
  • praca kliniczna
  • praca doświadczalna
  • praca opublikowana za granicą
  • tytuł obcojęzyczny

    Wskaźnik treści:
  • ludzie
  • dorośli 19-44 r.ż.
  • dorośli 45-64 r.ż.
  • in vitro

    Streszczenie angielskie: Aims/hypothesis. Vascular complications observed in diabetes are often related to altered platelet functions. The most widely used hypoglycaemic drugs for treating Type II (non-insulin-dependent) diabetes mellitus are sulphonylurea derivatives. The purposes of this study were to evaluate the inhibitory effects of hypoglycaemic agents on platelet aggregation, to measure their lipophilicity and identify their structural parameters which assess their antiaggregatory activity. Methods. An antiaggregatory test in vitro was carried out for 13 sulphonylurea derivatives. Aggregation of platelets, incubated with the agents at concentrations varying from 7.5 to 480 ćmol/l, was induced by 10 ćmol/l ADP. Drug lipophilicity parameter, log kw, was measured by gradient HPLC and the agents were subjected to molecular modelling. Results. The most pronounced inhibition of platelet aggregation was by glimepiride, gliclazide, gliquidone, glibenclamide and compound 2A. The IC25 values were 15.9, 18.6, 20.4, 28.5 and 34.7 ćmol/l, respectively. Quantitative structure-activity relationships indicate that antiaggregatory activity is mainly affected by electronic and not by lipophilic properties of the agents. Conclusion/interpretation. Glimepiride appeared to be a more potent ADP-induced platelet aggregation inhibitor in vitro than gliclazide. Antiaggregatory activity was shown for gliquidone and confirmed for glibenclamide. The QSAR analysis supports the hypothesis of a free radical mechanism of action of sulphonylurea derivatives previously suggested for gliclazide.

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    Tytuł oryginału: Mechanism of the contractile effects of galantide and Galanin (1-14) [ŕ-aminobutyric acid8]scyliorhinin-I in rat isolated fundus strips.
    Autorzy: Korolkiewicz Roman P., Konstański Zdzisław, Rekowski Piotr, Szyk Agnieszka, Ruczyński Jarosław, Dąbkowski Jarosław, Ujda Marek, Korolkiewicz Konstanty Zbigniew, Petrusewicz Jacek
    Źródło: Med. Sci. Monitor 2002: 8 (1) s.BR19-BR23, il., tab., bibliogr. 25 poz.
    Sygnatura GBL: 313,278

    Hasła klasyfikacyjne GBL:
  • farmacja

    Typ dokumentu:
  • praca doświadczalna
  • tytuł obcojęzyczny

    Wskaźnik treści:
  • zwierzęta
  • szczury

    Streszczenie angielskie: Background: The study was undertaken to establish the pharmacological basis of the stimulatory activity of galantide (M15) and galanin(1-14)-ŕ-aminobutyric acid8-[Abu8])scyliorhinin-I [Scy-I] in gastric smooth muscle. Material/Methods: Isotnic contractions of the isolated, longitudinal rat gastric fundus strips were recorded. Results: Galanin, galanin(1-15)-NH2, M15 and galanin(1-14)-[Abu8]Scy-I elicited concentration-dependent contractions. Their EC50s equaled 12.95, 174, 70.06 and 187 nM respectively. Hill's coefficients for galanin and galanin(1-15)-NH2 were not different from unity, indicating an interaction of one peptide molecule with one receptor accoridng to the principles of classical receptor theory. Hill's coefficients were 0.73 and 1.56 for M15 and galanin (1-14)-[Abu8]Scy-I, respectively, a value significantly different from unity. Cold-storage denervation, tetrodotoxin-TTX (1 ćM), spantide 100 ćM) and NK1-3 receptor antagonists SR140333, 48968, 142801 (up to 10 ćM) notably diminished Mf15, galanin (1-14)-[Abu8]Scy-I, SP(5-11) and [Abu8]-Scy-I evoked contractions without affecting activities of galanin and galanin(1-15)-NH2. Additionally, cross-desensitization experiments attenuated activity of M15 and galanin(1-14)-[Abu8]Scy-I without any noticeable action on galanin or galanin(1-15)-NH2. Conclusions: The action of chimeric peptides on the smooth muscle of the rat gastrointestinal tract depended not only on the myogenic interaction of those peptides with galanin binding sites, but also on the activation of tachykinin receptors or the release of endogenous mediators from the presynaptic terminals.

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    Tytuł oryginału: Farmakologia : zbiór pytań testowych dla studentów medycyny i stomatologii
    Autorzy: Petrusewicz Jacek, Gągało Iwona, Hać Ewa, Strzałkowska-Grad Halina
    Źródło: - Warszawa, Wydaw. Lekarskie PZWL 2002, 613 s., 24 cm.
    Sygnatura GBL: 735,705

    Hasła klasyfikacyjne GBL:
  • farmacja

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