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Wyszukujesz frazę "Ostrowski, Piotr" wg kryterium: Wszystkie pola

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    Wyświetlanie 1-5 z 5
    Tytuł:
    The effect of dihydrotestosterone on transcription of prostatic acid phosphatase mRNA in human hyperplastic gland
    Autorzy:
    Dulińska, Joanna
    Laidler, Piotr
    Ostrowski, Włodzimierz
    Mrozicki, Sławomir
    Gałka, Marek
    Powiązania:
    https://bibliotekanauki.pl/articles/1044900.pdf
    Data publikacji:
    1997
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Źródło:
    Acta Biochimica Polonica; 1997, 44, 4; 751-758
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Expression of genes encoding mitochondrial proteins can distinguish nonalcoholic steatosis from steatohepatitis
    Autorzy:
    Bragoszewski, Piotr
    Habior, Andrzej
    Walewska-Zielecka, Bozena
    Ostrowski, Jerzy
    Powiązania:
    https://bibliotekanauki.pl/articles/1041083.pdf
    Data publikacji:
    2007
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    NAFLD
    gene expression
    NASH
    mitochondria
    Opis:
    In patients without substantial alcohol use, triglyceride accumulation in the liver can lead to nonalcoholic fatty liver disease (NAFLD) that may progress to nonalcoholic steatohepatitis (NASH). The differential diagnosis between NAFLD and NASH can be accomplished only by morphological examination. Although the relationship between mitochondrial dysfunction and the progression of liver pathologic changes has been described, the exact mechanisms initiating primary liver steatosis and its progression to NASH are unknown. We selected 16 genes encoding mitochondrial proteins which expression was compared by quantitative RT-PCR in liver tissue samples taken from patients with NAFLD and NASH. We found that 6 of the 16 examined genes were differentially expressed in NAFLD versus NASH patients. The expression of hepatic HK1, UCP2, ME2, and ME3 appeared to be higher in NASH than in NAFLD patients, whereas HMGCS2 and hnRNPK expression was lower in NASH patients. Although the severity of liver morphological injury in the spectrum of NAFLD-NASH may be defined at the molecular level, expression of these selected 6 genes cannot be used as a molecular marker aiding histological examination. Moreover, it is still unclear whether these differences in hepatic gene expression profiles truly reflect the progression of morphological abnormalities or rather indicate various metabolic and hormonal states in patients with different degrees of fatty liver disease.
    Źródło:
    Acta Biochimica Polonica; 2007, 54, 2; 341-348
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Increased expression of ribosomal protein S2 in liver tumors, posthepactomized livers, and proliferating hepatocytes in vitro.
    Autorzy:
    Kowalczyk, Piotr
    Woszczyński, Marek
    Ostrowski, Jerzy
    Powiązania:
    https://bibliotekanauki.pl/articles/1043722.pdf
    Data publikacji:
    2002
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    ribosomal protein S2
    partial hepatectomy
    hepatocytes
    hepatocellular carcinoma
    Opis:
    The ribosomal protein S2 (RPS2) is encoded by a gene from the highly conserved mammalian repetitive gene family LLRep3. It participates in aminoacyl-transfer RNA binding to ribosome, potentially affecting the fidelity of mRNA translation. These studies were designed to measure the expression of RPS2 during increased cell proliferation. Using Western and Northern blot analyses, we found that the levels of RPS2 protein and its corresponding mRNA were higher in mouse hepatocellular carcinoma, in mouse livers after one-third partial hepatectomy, and in serum-starved cultured hepatocytes following serum treatment. Our study shows that the increased expression of RPS2 correlates with increased cell proliferation. However, whether the altered expression of this protein reflects its involvement in cellular proliferation or represents an associated phenomena is still a key question that needs to be explored.
    Źródło:
    Acta Biochimica Polonica; 2002, 49, 3; 615-624
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Up-regulation of human PNPase mRNA by β-interferon has no effect on protein level in melanoma cell lines
    Autorzy:
    Gewartowski, Kamil
    Tomecki, Rafal
    Muchowski, Lukasz
    Dmochowska, Aleksandra
    Dzwonek, Artur
    Malecki, Michal
    Skurzak, Henryk
    Ostrowski, Jerzy
    Stepien, Piotr
    Powiązania:
    https://bibliotekanauki.pl/articles/1041287.pdf
    Data publikacji:
    2006
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    polynucleotide phosphorylase
    melanoma
    human mitochondria
    beta interferon
    poly(A) tails
    PNPase
    Opis:
    Human mitochondrial polynucleotide phosphorylase (hPNPase) is an exoribonuclease localized in mitochondria. The exact physiological function of this enzyme is unknown. Recent studies have revealed the existence of a relationship between induction of hPNPase mRNA and both cellular senescence and growth arrest of melanoma cells following β-interferon treatment. The aim of this study was to verify whether the augmented hPNPase mRNA level results in increase of the protein level. In several cell lines established from five metastatic melanoma patients we did not find any such correlation. However, an elevated level of hPNPase protein was observed in interferon-induced HeLa and Jurkat cells. This increase was correlated with a slight shortening of poly(A) tails of mitochondrial ND3 transcript.
    Źródło:
    Acta Biochimica Polonica; 2006, 53, 1; 179-188
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Transcriptional changes between uninflamed ulcerative colitis and familial adenomatous polyposis pouch mucosa can be attributed to an altered immune response
    Autorzy:
    Paziewska, Agnieszka
    Horbacka, Karolina
    Goryca, Krzysztof
    Mikula, Michal
    Jarosz, Dorota
    Dabrowska, Michalina
    Krokowicz, Piotr
    Karon, Jacek
    Ostrowski, Jerzy
    Powiązania:
    https://bibliotekanauki.pl/articles/1039136.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    ulcerative colitis
    familial adenomatous polyposis
    pouch
    gene expression
    immune response
    Opis:
    A total proctocolectomy with ileal pouch-anal anastomosis (IPAA) is considered the surgery of choice for definitive management of familial adenomatous polyposis (FAP) and some patients with ulcerative colitis (UC). However, this surgical treatment is often associated with pouchitis, a long-term complication that occurs mostly in UC patients. The purpose of this study was to better define the molecular background of pouchitis. A microarray-based survey was performed using pouch mucosal samples collected from 28 and 8 patients undergoing surgery for UC and FAP, respectively. There were 4,770 genes that significantly differentiated uninflamed from inflamed mucosal samples, and their functional features were represented mostly by metabolic and cell proliferation pathways. In contrast, functional analyses of aberrantly expressed genes between UC and FAP samples, irrespective of mucosal inflammation status, revealed multiple pathways and terms that were linked to changes in immune response. Interestingly, the comparison of uninflamed UC and FAP samples identified a set of 29 altered probe sets, including an inflammation-related transcript encoding a Charcot-Leyden crystal (CLC) protein. The most distinct changes in gene expression profiles differentiating uninflamed UC and FAP pouch mucosal samples were attributed to the Gene Ontology category innate immune response. Our study confirmed that alterations in immune responses can be found between patients who underwent surgery for UC and FAP, independent of the pouch inflammation status. This observation may be important when managing IPAA patients.
    Źródło:
    Acta Biochimica Polonica; 2015, 62, 1; 69-75
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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