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Wyszukujesz frazę "Bryjak, Agnieszka" wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Administration of liposomal doxorubicin in patients with metastatic breast cancer and significant concomitant cardiovascular conditions
Autorzy:
Bryjak, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/773565.pdf
Data publikacji:
2014
Wydawca:
Medical Education
Tematy:
NLPD
cardiotoxicity
conventional anthracyclines
liposomal doxorubicin
metastatic breast cancer
Opis:
A frequent dilemma faced by an oncologist about to take decision on a chemotherapeutic regime for patients with metastatic breast cancer is how to maintain balance between the expected treatment efficacy and predictable adverse events. In the case of anthracyclines what is problematic is their significant cardiotoxicity, in particular with reference to patients previously treated with them as part of adjuvant therapy. A relatively new method is replacement of conventional doxorubicin with its non-pegylated form, encapsulated in liposomes, which is capable of minimizing the side effects without compromising its therapeutic index. The present article discusses three cases of patients treated with non-pegylated liposomal doxorubicin (NPLD) as first-line chemotherapy administered for metastatic breast cancer. In all three cases considerable clinical improvement was observed, involving remission of pathological lesions and good quality of life.
Źródło:
OncoReview; 2014, 4, 4; A148-A154
2450-6125
Pojawia się w:
OncoReview
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Screening of lipase carriers for reactions in water, biphasic and pure organic solvent systems
Autorzy:
Hrydziuszko, Zofia
Dmytryk, Agnieszka
Majewska, Paulina
Szymańska, Katarzyna
Liesiene, Jolanta
Jarzębski, Andrzej
Bryjak, Jolanta
Powiązania:
https://bibliotekanauki.pl/articles/1039314.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
lipase
immobilization
hydrolysis
transesterification
Opis:
In bioprocesses lipases are typically used in immobilized form, irrespective of type of reaction systems, to ensure an even distribution of catalysts in water restricted media and/or to facilitate separation and reuse. In these studies we report on the selection of appropriate enzyme-carrier preparation for hydrolysis reaction in aqueous and biphasic systems and transesterification in organic solvent. For this Candida rugosa lipase was bound by adsorption or covalent attachment onto various carriers to give 24 preparations. Selection of proper preparation was based on reactivity, thermal stability (4 h at 60°C), possibility of drying and operational stability in 17-23 successive batch processes of 4-nitrophenyl palmitate hydrolysis in water. Activity of preparations varied from 20 to 5100 U∙mL-1 but the most stable preparations were those of moderate activity: bound by adsorption or covalent attachment to NH2-Kieselgel or acrylic carrier (retained activity over 90%). Selected preparations were used for hydrolysis of ethyl (1-butyryloxyethyl)-phenylphosphinate in biphasic system, and, after drying, in ethyl (1-hydroxyethyl)-phenyl-phosphinate transesterification. In this study operational stability was the principal criterion of selection. In water system, lipase covalently bound to NH2-Kieselgel was the best - preserved 50% of initial activity in consecutive batch processes. In biphasic system and lipase covalently bound to acrylic and NH2-Kieselgel the values were 90 or 77%, respectively, whereas in organic solvent, when lipase was immobilized on NH2-Kieselgel by adsorption, it was 50%. Thus, NH2-Kieselgel appears to be an universal matrix for investigated lipase immobilization and can be used in all reaction systems.
Źródło:
Acta Biochimica Polonica; 2014, 61, 1; 1-6
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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