Autor: Solski, Janusz - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Gamma-amino butyric acid (GABA) level as an overall survival risk factor in breast cancer
Autorzy:: Brzozowska, Anna
Burdan, Franciszek
Duma, Dariusz
Solski, Janusz
Mazurkiewicz, Maria
Powiązania:: https://bibliotekanauki.pl/articles/989525.pdf
Data publikacji:: 2017
Wydawca:: Instytut Medycyny Wsi
Tematy:: breast cancer
e-cadherin
gaba/ γ -amino butyric acid/
prognostic factors
prognosis
Opis:: Introduction and objective. The γ-amino butyric acid (GABA) plays important role in the proliferation and migration of cancer cells. The aim of the study was to evaluate the level of GABA in breast cancer, in relation to clinical and epidemiological data. Materials and method. The study was conducted on 89 patients with breast cancer in stage I-II. GABA level was assessed using spectrofluorometric method in tumour homogenates. Immunoexpression of E-cadherin was evaluated histologically on paraffin fixed specimens. Overall and disease-free survival was assessed for a 15-year interval period. Results. Median overall survival was significantly longer (127.2 months) in patients with a high level of GABA (>89.3 μg/1), compared with a group with a low level of the amino acid (106.4 months). Disease-free survival was insignificantly different – 99 and 109 months, respectively. A significantly longer overall survival (131.2 months) was seen among patients with a high level of GABA and positive E-cadherin immunoexpression, compared with a group characterized by a low level of GABA and lack of E-cadherin immunorectivity (98.1 months). The co-existence of negative immunoexpression of E-cadherin and low GABA concentration resulted in a six-fold increase in the risk of death (HR=6.03). Conclusion. GABA has a significant prognostic value in breast cancer. Co-existence of a low level of GABA and loss of E-cadherin immune-expression seems to be a new, independent, and negative prognostic marker of the neoplasm.
Źródło:: Annals of Agricultural and Environmental Medicine; 2017, 24, 3
1232-1966
Pojawia się w:: Annals of Agricultural and Environmental Medicine
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Levels of renalase and advanced oxidation protein products with regard to catecholamines in haemodialysed patients
Autorzy:: Dziedzic, Marcin
Orłowska, Ewelina
Petkowicz, Beata
Bednarek-Skublewska, Anna
Solski, Janusz
Goździewska, Małgorzata
Powiązania:: https://bibliotekanauki.pl/articles/991106.pdf
Data publikacji:: 2017
Wydawca:: Instytut Medycyny Wsi
Tematy:: renalase
advanced oxidation protein products
catecholamines
haemodialysis
Opis:: Introduction. The main mediators of the sympathetic nervous system in the effectors part are catecholamines (CA). An increased sympathetic nerve activity observed in chronic kidney disease (CKD), is due to a raised level of CA in plasma. Renalase is a protein secreted by the kidneys, composed of 342 amino acids, which is able to metabolize the circulating CA and possibly play an important role in the regulation of sympathetic tone and blood pressure. Also, oxidative stress, defined as a disruption of the equilibrium between the generation of oxidants, is a crucial factor in the development of the inflammatory syndrome associated with CKD. The advanced oxidation protein products (AOPP) represent exquisite markers of phagocyte-derived oxidative stress. Objective. The aim of the study was to investigate the concentration of renalase and explore the associations between AOPP with regards to CA in haemodialysis (HD) patients. Materials and method. The study was conducted among 50 residents of the municipality and neighbouring villages in the province of Lublin, central-eastern Poland. Results. In the studied patients, it was found that an average concentration of renalase was 44.8 ± 6.5 μg/mL, whereas of AOPP plasma levels – 57.5 ± 21.5 μmol/L. The results demonstrated the correlation between levels of renalase and AOPP in the HD patients. Indeed, elevated levels of renalase and AOPP in HD may be due to the presence of uremic toxins in blood. The concentration of urea affects the plasma concentrations of AOPP and renalase causing a direct relationship between renalase and AOPP. However, there is no clear relationship between renalase and circulating catecholamines in HD patients.
Źródło:: Annals of Agricultural and Environmental Medicine; 2017, 24, 3
1232-1966
Pojawia się w:: Annals of Agricultural and Environmental Medicine
Dostawca treści:: Biblioteka Nauki