Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "Borowski, Jan" wg kryterium: Autor

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-4 z 4
    Tytuł:
    The geometry of intercalation complex of antitumor mitoxantrone and ametantrone with DNA: Molecular dynamics simulations
    Autorzy:
    Mazerski, Jan
    Martelli, Sante
    Borowski, Edward
    Powiązania:
    https://bibliotekanauki.pl/articles/1044846.pdf
    Data publikacji:
    1998
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Źródło:
    Acta Biochimica Polonica; 1998, 45, 1; 1-11
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Glucosamine-6-phosphate synthase, a novel target for antifungal agents. Molecular modelling studies in drug design.
    Autorzy:
    Wojciechowski, Marek
    Milewski, Sławomir
    Mazerski, Jan
    Borowski, Edward
    Powiązania:
    https://bibliotekanauki.pl/articles/1041368.pdf
    Data publikacji:
    2005
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    drug design
    glucosamine-6-phosphate synthase
    fungal infections
    glutamine amidotransferases
    molecular modelling
    Opis:
    Fungal infections are a growing problem in contemporary medicine, yet only a few antifungal agents are used in clinical practice. In our laboratory we proposed the enzyme L-glutamine : D-fructose-6-phosphate amidotransferase (EC 2.6.1.16) as a new target for antifungals. The structure of this enzyme consists of two domains, N-terminal and C-terminal ones, catalysing glutamine hydrolysis and sugar-phosphate isomerisation, respectively. In our laboratory a series of potent selective inhibitors of GlcN-6-P synthase have been designed and synthesised. One group of these compounds, including the most studied N3-(4-methoxyfumaroyl)-l-2,3-diaminopropanoic acid (FMDP), behave like glutamine analogs acting as active-site-directed inactivators, blocking the N-terminal, glutamine-binding domain of the enzyme. The second group of GlcN-6-P synthase inhibitors mimic the transition state of the reaction taking place in the C-terminal sugar isomerising domain. Surprisingly, in spite of the fact that glutamine is the source of nitrogen for a number of enzymes it turned out that the glutamine analogue FMDP and its derivatives are selective against GlcN-6-P synthase and they do not block other enzymes, even belonging to the same family of glutamine amidotransferases. Our molecular modelling studies of this phenomenon revealed that even within the family of related enzymes substantial differences may exist in the geometry of the active site. In the case of the glutamine amidotransferase family the glutamine binding site of GlcN-6-P synthase fits a different region of the glutamine conformational space than other amidotransferases. Detailed analysis of the interaction pattern for the best known, so far, inhibitor of the sugar isomerising domain, namely 2-amino-2-deoxy-d-glucitol-6-phosphate (ADGP), allowed us to suggest changes in the structure of the inhibitor that should improve the interaction pattern. The novel ligand was designed and synthesised. Biological experiments confirmed our predictions. The new compound named ADMP is a much better inhibitor of glucosamine-6-phosphate synthase than ADGP.
    Źródło:
    Acta Biochimica Polonica; 2005, 52, 3; 647-653
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    N-Methyl-N-D-fructosyl amphotericin B methyl ester (MF-AME), a novel antifungal agent of low toxicity: Monomer/micelle control over selective toxicity.
    Autorzy:
    Cybulska, Barbara
    Gadomska, Ina
    Mazerski, Jan
    Grzybowska, Jolanta
    Borowski, Edward
    Cheron, Monique
    Bolard, Jacques
    Powiązania:
    https://bibliotekanauki.pl/articles/1044402.pdf
    Data publikacji:
    2000
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    reactional drug design
    selective toxicity
    amphotericin B
    Opis:
    Rational chemical modification of amphotericin B (AMB) led to the synthesis of sterically hindered AMB derivatives. The selected optimal compound, N-methyl- N-D-fructosyl amphotericin B methyl ester (MF-AME) retains the broad spectrum of antifungal activity of the parent antibiotic, and exhibits a two orders of magnitude lower toxicity in vivo and in vitro against mammalian cells. Comparative studies of MF-AME and AMB comprising the determination of the spectroscopic properties of monomeric and self-associated forms of the antibiotics, the investigation of the influence of self-association on toxicity to human red blood cells, and of the antibiotic-sterol interaction were performed. On the basis of the results obtained it can be assumed that the improvement of the selective toxicity of MF-AME could in part be a consequence of the diminished concentration of water soluble oligomers in aqueous medium, and the better ability to differentiate between cholesterol and ergosterol.
    Źródło:
    Acta Biochimica Polonica; 2000, 47, 1; 121-131
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Selected factors of fibrinolysis in the Buerger’s disease
    Autorzy:
    Terlecki, Piotr
    Feldo, Marcin
    Przywara, Stanisław
    Iłżecki, Marek
    Kęsik, Jan J.
    Borowski, Grzegorz
    Wroński, Jacek
    Zubilewicz, Tomasz
    Powiązania:
    https://bibliotekanauki.pl/articles/1396478.pdf
    Data publikacji:
    2013-11-01
    Wydawca:
    Index Copernicus International
    Tematy:
    Buerger’s disease
    fibrinolysis
    Opis:
    Thrombangiitis obliterans (TAO marked by coexistence of thrombotic and inflammatory changes of neurovascular tract has evoked a considerable dispute concerning pathogenesis of this disease. The aim of the study was to define the level of activation of fibirinolitic system in course of TAO disease by means of determination its basic constituents as well as to examine the essence of level of fibrinolysis disorders in pathogenesis and development of this disease. Material and methods. Fifty patients with thrombangiitis obliterans (TAO), 30 patients with peripheral occlusive disease - PAOD (ASO) and 20 healthy volunteers (K) have been subjected to the examination. We determined the activity some factors of fibrinolysis: t-PA, PAI-1, PAP, plasminogen, α2-antiplasminogen, D-dimmer as well as euglobulin lysis time. The analysis comprised 7 features and 8 factors of variability: a membership to a group of patients, sex, age, smoking, aggravation of the disease within last 3 months, occurrence of Raynaud’s symptom, a degree of ischemia according to Fontaine, time the disease lasted. Results. The significant differences between the average were checked by means of t-Student test or variance analysis (ANOVA) and co-relation rate r (Pearson). We concluded that the average value of PAI-1 in the group TAO was significantly higher than in comparison with ASO group. The increased values were revealed in case of 76 % of patients. The euglobulin lysis time was vitally extended in case of 60% of patients in ASO group. In all three groups higher levels of α2-antiplasmin were detected in case of elderly patients compared to the younger ones. Conclusions. The obtained results allow us to ascertain the state of potentially weakened fibrinolysis in case of patients with Buerger’s disease as well as with PAOD.
    Źródło:
    Polish Journal of Surgery; 2013, 85, 11; 630-637
    0032-373X
    2299-2847
    Pojawia się w:
    Polish Journal of Surgery
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

      Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies