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    Wyświetlanie 1-4 z 4
    Tytuł:
    Eliminating side effects of pain therapies
    Autorzy:
    Różycki, Krzysztof
    Rapacz, Jacek
    Fichna, Jakub
    Kosson, Piotr
    Powiązania:
    https://bibliotekanauki.pl/articles/1177402.pdf
    Data publikacji:
    2018
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    PAMORA
    cancer
    constipation
    morphine
    opioid
    pain
    peptide
    Opis:
    Pain is a very serious problem associated with many types of health conditions. Unfortunately, patients suffering from intense pain often give up or cut down on taking analgesics because of side effects of such treatment. New generation drugs create an opportunity for supporting therapies effectively. Persistent constipation is one of the more acute side effects of administration of opioids. This article gives an extensive coverage of the PAMORA group of drugs that eliminate opioid-induced constipation. It also proposes future directions for contemporary studies on the subject and other feasible therapeutic applications for this group of medicines. The molecule developed under the POIG.01.04.00-14-213/12 project “New intestinal drug for control of side effects of opioid therapies” is one of the prospects. [The project] researched structures based on opioid peptide analogs behaving like opioid antagonists vs. intestinal μ receptors. In addition, [the structures] feature properties that can be used in oncological therapies because they inhibit growth of malignant cells. The structures are being tested on animal models.
    Źródło:
    World Scientific News; 2018, 104; 400-410
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fatty acid amide hydrolase (FAAH) inhibitor PF-3845 reduces viability, migration and invasiveness of human colon adenocarcinoma Colo-205 cell line: an in vitro study
    Autorzy:
    Wasilewski, Andrzej
    Krajewska, Urszula
    Owczarek, Katarzyna
    Lewandowska, Urszula
    Fichna, Jakub
    Powiązania:
    https://bibliotekanauki.pl/articles/1038612.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    cannabinoid receptors
    Colo-205
    colorectal cancer
    invasion
    migration
    Opis:
    Earlier reports suggest that the endocannabinoids may play a role of endogenous tumor growth modulators. In this study, we investigated whether inhibition of the enzymes involved in the synthesis and degradation of endocannabinoids may reduce colorectal cancer cell invasion and migration. The human colon adenocarcinoma Colo-205 cells were incubated with PF-3845, JZL-184 and RHC-80267 (fatty acid amide hydrolase (FAAH), mono- (MAGL) and diacylglycerol lipase (DAGL) inhibitors, respectively) for 48 h. The MTT colorimetric assay was performed to quantify cell viability. Next, Colo-205 cells were incubated with PF-3845 alone or with PF-3845 together with selected antagonists: AM 251, AM 630, SB 366791, RN 1734 and G-15 (CB1, CB2, TRPV1, TRPV4 and GPR30 antagonists, respectively). Western blot assay was applied to identify the changes in CB1 and CB2 receptor expression. Migration and invasion assays were employed to characterize the effect of PF-3845 on colorectal cancer cell invasion. We found that of all the inhibitors used, the FAAH inhibitor PF-3845 reduced the Colo-205 cell line viability the most effectively (IC50=52.55 μM). We also showed that the effect of decreased cell viability was enhanced when Colo-205 cells were incubated with PF-3845 and RN-1734, a TRPV4 antagonist (IC50=30.54 μM). Western blot assay revealed significantly decreased CB1 receptor expression levels, while CB2 expression was increased in response to PF-3845 when compared to control. Furthermore, PF-3845 inhibited migration and invasion of Colo-205 cell line. These results suggest that pharmacological inhibition of FAAH and consequent enhancement of the endocannabinoid levels may reduce the colorectal cancer growth and progression.
    Źródło:
    Acta Biochimica Polonica; 2017, 64, 3; 519-525
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Flavanols from Japanese quince (Chaenomeles japonica) fruit suppress expression of cyclooxygenase-2, metalloproteinase-9, and nuclear factor-kappaB in human colon cancer cells
    Autorzy:
    Owczarek, Katarzyna
    Hrabec, Elżbieta
    Fichna, Jakub
    Sosnowska, Dorota
    Koziołkiewicz, Maria
    Szymański, Jacek
    Lewandowska, Urszula
    Powiązania:
    https://bibliotekanauki.pl/articles/1038623.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    flavanols
    Japanese quince (Chaenomeles japonica)
    colon cells
    COX-2
    MMP-9
    NF-κB
    Opis:
    Natural polyphenols and polyphenol-rich extracts have been found to possess preventive and therapeutic potential against several types of cancers, including colorectal cancer (CRC), which is an example of an inflammation-associated cancer. This study examines the chemopreventive effect of a Japanese quince (Chaenomeles japonica) fruit flavanol preparation (JQFFP) on colon cancer SW-480 cells. JQFFP, rich in procyanidin monomers and oligomers, was found to inhibit the SW-480 cell viability by 40% at 150 µM catechin equivalents (CE) after 72 h incubation when compared to control, but it was non-toxic to normal colon fibroblast CCD-18Co cells. Furthermore, 100 µM CE JQFFP suppressed COX-2 mRNA expression to 36.7% of control values and protein expression to 77%. In addition, JQFFP reduced the MMP-9 protein expression (to 24% vs. control at 100 µM CE) and caused inhibition of its enzymatic activity (to 35% vs. control at 100 µM CE). Not only did JQFFP inhibit the COX-2 and MMP-9 levels, but it also reduced the NF-κB protein expression (to 65% of control) and phosphorylation of its p65 subunit (to 51%) at 100 µM CE. These results provide the first evidence that JQFFP inhibits COX-2, MMP-9, and NF-κB expression, suggesting that it has cytotoxic, anti-inflammatory, and anti-metastatic activities towards the colon cancer SW-480 cells.
    Źródło:
    Acta Biochimica Polonica; 2017, 64, 3; 567-576
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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