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Wyszukujesz frazę "Guzińska-Ustymowicz, K." wg kryterium: Autor


Wyświetlanie 1-3 z 3
Tytuł:
Comparison of expression of selected proteins in the cells of intestinal and diffuse type gastric cancer – immunohistochemical analysis
Autorzy:
Gryko, M.
Prycznicz, A.
Dawidziuk, T.
Zińczuk, J.
Cepowicz, D.
Kamocki, Zb.
Kedra, B.
Guzińska-Ustymowicz, K.
Powiązania:
https://bibliotekanauki.pl/articles/1916399.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Medyczny w Białymstoku
Tematy:
gastric cancer
apoptosis
Lauren classification
E-cadherin
apoptotic pathways
Opis:
Introduction: Despite the progress in gaining knowledge about carcinogenesis, it is still unclear what processes are directly responsible for the differentiation of gastric cancer into its intestinal or diffuse form. Dividing of these two forms is based on one of the oldest, yet still commonly used classifications – the classification of Lauren. There are many factors that may influence the formation of gastric tumors of various aggressiveness. Purpose: To evaluate the expression of proteins: fragile histidine triad (FHIT), E-cadherin, α-catenin, γ-catenin, cathepsin B, epidermal growth factor (EGF), HER-2, MMP-9, MCM-2, Bak, Bax, BID, Bcl-XL, p53, FasL, Bcl-2, caspase-8, procaspase-3 in gastric cancer cells, depending on the type of tumor by Lauren classification. Materials and methods: Study group consisted of 91 patients treated surgically for gastric cancer in the Second Department of General and Gastroenterological Surgery, Medical University of Bialystok in years between 2000 and 2006. Results: It is shown, that the expression of E-cadherin was significantly higher in the Lauren I gastric cancer cells than in Lauren II. In case of caspase-8 there has been significantly less frequent expression of this protein in Lauren I gastric cancer cells compared to Lauren II. The authors describe no statistically significant differences in the expression of other proteins taken into consideration. Conclusions: These results suggest the role of adhesion and apoptosis-related proteins in the development of two different types of gastric cancer according to Lauren’s classification.
Źródło:
Progress in Health Sciences; 2014, 4, 1; 158-164
2083-1617
Pojawia się w:
Progress in Health Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Clinical usefulness of MMP-2 and TIMP-2 concentrations in the preoperative serum of patients with colorectal cancer
Autorzy:
Pryczynicz, A.
Gryko, M.
Dymicka-Piekarska, V.
Lewczuk, Ł.
Wakulewska, A.
Ozimkiewicz, M.
Lebelt, A.
Guzińska-Ustymowicz, K.
Powiązania:
https://bibliotekanauki.pl/articles/1917768.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Medyczny w Białymstoku
Tematy:
Colorectal cancer
matrix metalloproteinases
MMP-2
TIMP-2
serum marker
Opis:
Purpose: To evaluate the clinical significance of MMP-2 and TIMP-2 concentrations in the sera of patients diagnosed with colorectal cancer. Methods: The study group comprised 48 patients with colorectal carcinoma and 24 healthy controls. The serum concentration of MMP-2 and TIMP-2 proteins was evaluated by the ELISA method. Results: The mean level of MMP-2 in the sera of patients with colorectal cancer was 39.4 ng/ml and was significantly lower compared with the control (p<0.001). A decrease in TIMP-2 protein in the sera of patients with colorectal cancer was also observed where its mean level was 132.3 ng/ml. The concentration of MMP-2 and TIMP-2 did not correlated with any clinicopathological parameters, except for the patients’ age. In addition, the concentration of MMP-2 in the sera of patients with CRC correlated negatively with the number of white blood cells in the blood and the prothrombin index. The concentration of TIMP-2 correlated positively with potassium and urea concentration in the blood. Conclusions: The results of our study indicate lack of clinical usefulness of determining the levels of MMP-2 and TIMP-2 in the sera of patients with colorectal cancer. However, these proteins play an important role in the carcinogenesis of colorectal cancer.
Źródło:
Progress in Health Sciences; 2016, 6(1); 32-39
2083-1617
Pojawia się w:
Progress in Health Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The expression of apoptosis-related proteins in patients with ulcerative colitis
Autorzy:
Niewiarowska, K.
Lebelt, A.
Gryko, M.
Pryczynicz, A.
Famulski, W.
Czyżewska, J.
Kemona, A.
Piekarska-Dymicka, V.
Jagodzińska, D.
Guzińska-Ustymowicz, K.
Powiązania:
https://bibliotekanauki.pl/articles/1916338.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Medyczny w Białymstoku
Tematy:
Ulcerative colitis
Bcl-xl
Bax
Bid
Bcl-2
Opis:
Purpose: Recent literature data indicate a key role of apoptosis in the pathogenesis of inflammatory bowel disease. The aim of the study was to evaluate the expression of Bax, Bid, Bcl-2 and Bcl-xl in non-dysplastic and dysplastic epithelium in inflamated mucosa of patients with ulcerative colitis. Methods: The study consists of 18 patients with diagnosed ulcerative colitis. The expression of proteins was determined immunohistochemically. Results: Lack of Bax expression in normal epithelium of the inflamed intestinal mucosa (94.4%) and a weak expression of this protein were found in dysplastic glandular cells (67%). The Bax expression of dysplastic epithelium correlates with reduced severity of chronic inflammation (p<0.005). Bid expression in non-dysplastic glands was found in 67% of cases vs. 16% in dysplastic epithelium that was associated with the occurrence of epithelial erosions or ulcers (p<0.05). Moderate cytoplasmic expression of Bcl-xl was noted in 27.7% of patients in normal epithelium and in 66.1% within dysplastic lesions. Bcl-xl expression in dysplastic glandular cells correlated with the presence of neutrophils in the lamina propria (p <0.05). Conclusions: The immunohistochemical expressions of Bax, Bcl-2 and Bcl-xl increase and Bid protein expression decreases in dysplastic glandular tubes as compared to non-dysplastic intestinal epithelium in inflamed mucosa, which may suggest an imbalance of controlled cell death in ulcerative colitis.
Źródło:
Progress in Health Sciences; 2014, 4, 1; 75-82
2083-1617
Pojawia się w:
Progress in Health Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
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