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Wyświetlanie 1-4 z 4
Tytuł:
Selected Electroanalytical Determination Methods of Zinc in Materials of Different Origins
Autorzy:
Zając, Magdalena
Rojowski, Jacek
Szlósarczyk, Marek
Powiązania:
https://bibliotekanauki.pl/articles/1033788.pdf
Data publikacji:
2012
Wydawca:
Zakład Opieki Zdrowotnej Ośrodek Umea Shinoda-Kuracejo
Tematy:
anodic stripping voltammetry
electroanalytical methods
polarography
zinc assay
Opis:
Zinc is a naturally wide spread element, which generally finds its use in industry but also in numerous pharmaceutical, cosmetic and stomatology materials. Taking into consideration its frequent occurrence (in almost all biological materials) and its low quantities, a good choice of analytical method for zinc assay is a necessity. Apart from spectrophotometric methods – especially AAS (Atomic Absorption Spectrometry) which is a method of choice for zinc determination, also electroanalytical methods are used. Most frequently ASV (Anodic Stripping Voltammetry) or Polarography is applied. Despite the need of samples digestion electrochemical methods offer a price convenient method for determination of zinc, even in trace amounts (ppt – parts per trillion). Currently there is also new information about ion selective electrodes suitable for zinc assay.
Źródło:
Medicina Internacia Revuo; 2012, 25, 99; 70-73
0465-5435
Pojawia się w:
Medicina Internacia Revuo
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Edible Mushrooms in Prophylaxis and Treatment of Human Diseases
Autorzy:
MUSZYNSKA, Bożena
SUŁKOWSKA-ZIAJA, Katarzyna
ŁOJEWSKI, Maciej
OPOKA, Włodzimierz
ZAJĄC, Magdalena
ROJOWSKI, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/1033825.pdf
Data publikacji:
2013
Wydawca:
Zakład Opieki Zdrowotnej Ośrodek Umea Shinoda-Kuracejo
Tematy:
Basidiomycota
chitosans
ergothioneine
hypercholesterolemia
statins
Opis:
In recent years an increase in the consumption of edible mushrooms has been observed. In many countries mushrooms have been a popular delicacy, as they add flavor and texture to a meal. Mushrooms are able to accumulate both primary and secondary metabolites. Some of them may play an antioxidant role, e.g. phenolic and indole compounds, flavonoids, terpenoids, sterols, ascorbic acid, ergothioneine and carotenoids and are a source of elements, e.g. selenium. Indole compounds fulfill the role of neurotransmitters or their precursors, exhibit antioxidant, anticancer, anti-inflammatory and anti-aging actions, regulate the diurnal cycle in humans and take part in blood coagulation. Biologically and therapeutically active metabolites of fungi are used to treat such serious diseases as cardiovascular diseases, diabetes, atherosclerosis and cancer. The intake of mushrooms clearly has a cholesterol-lowering effect or hypocholesterolemic effect by different mechanisms such as decreasing VLDL, improving lipid metabolism, inhibiting of activity of HMG-CoA reductase, and consequently preventing the development of atherosclerosis. The antioxidant and anti-inflammatory compounds occurring in mushrooms also may contribute to reduce the atherosclerosis risk.
Źródło:
Medicina Internacia Revuo; 2013, 25, 101; 170-183
0465-5435
Pojawia się w:
Medicina Internacia Revuo
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of zinc oxide nanoparticles on the expression of proinflammatory proteins in murine macrophages raw 264.7 cells
Autorzy:
OLBERT, Magdalena
GRYC, Karolina
SROCZYŃSKA, Katarzyna
ZAJĄC, Anna
LIPKOWSKA, Anna
LIBROWSKI, Tadeusz
GDULA-ARGASIŃSKA, Joanna
Powiązania:
https://bibliotekanauki.pl/articles/1033697.pdf
Data publikacji:
2017
Wydawca:
Zakład Opieki Zdrowotnej Ośrodek Umea Shinoda-Kuracejo
Tematy:
COX-2
Nrf2
inflammation
zinc oxide nanoparticles
Opis:
Zinc is a microelement essential for the body. It has a great impact on the proper development and renewal of tissues, reproductive system, skin condition, or immune processes. Zincis involved practically in all aspects of the immune system and the production and activation of white blood cells. This work aimed to determine the effect of zinc oxide nanoparticles (ZnONP) on the expression of pro-inflammatory proteins in murine macrophages RAW 264.7, activated with lipopolysaccharide (LPS). Using the immunodetection technique the expression of cyclooxygenase 2 (COX-2), prostaglandin E2 synthase (cPGES), prostaglandin F2α receptor (FP receptor) and nuclear factor Nrf2 was determined. Statistically the highest expression of COX-2, cPGES, and FP receptor was observed in LPS-activated macrophages. RAW 264.7 cells supplementation with ZnONP 100 nmol and 500 nmol and LPS activation resulted in repression of COX-2 and cPGES, and an increased expression of Nrf2 protein when compared to control. The results suggest an anti-inflammatory effect and activation of the antioxidant system by ZnONP in RAW 264.7 macrophages. It seems appropriate to conduct further research on the molecular mechanism of action of ZnONP in eukaryotic cells.
Źródło:
Medicina Internacia Revuo; 2017, 28, 109; 262-265
0465-5435
Pojawia się w:
Medicina Internacia Revuo
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of αlpha-linolenic acid supplementation on murine macrophages RA W 264.7 activated with lipopolisaccharide
Autorzy:
ZAJĄC, Anna
SROCZYŃSKA, Katarzyna
LIPKOWSKA, Anna
OLBERT, Magdalena
LIBROWSKI, Tadeusz
SAŁAT, Kinga
MALIKOWSKA, Natalia
GDULA-ARGASIŃSKA, Joanna
Powiązania:
https://bibliotekanauki.pl/articles/1033804.pdf
Data publikacji:
2017
Wydawca:
Zakład Opieki Zdrowotnej Ośrodek Umea Shinoda-Kuracejo
Tematy:
COX-2
FP receptor
cPGES
lipopolysaccharide
macrophage RAW 264.7
α – linolenic acid
Opis:
Chronic inflammation is characterized by excessive production of cytokines and eicosanoids and is associated with unsufficient resolution. Supplementation with n-3 fatty acids may result in a lower incidence of many inflammatory diseases. The aim of this study was to determine the effect of α – linolenic acid (ALA) on the fatty acids profile of cell membranes and on the pro-inflammatory proteins cyclooxygenase – 2 (COX-2), prostaglandin E2 synthase (cPGES) and prostaglandin F2α receptor (FP) expression in murine RAW 264.7 macrophages, activated with lipopolysaccharide (LPS). It has been shown that COX-2, cPGES as well as FP receptor expression was highest in cells activated by LPS. In macrophages supplemented with ALA and activated with LPS a pro-inflammatory protein levels were significantly reduced, suggesting anti-inflammatory activity of α-linolenic acid. There were also statistically significant changes in the fatty acid profile after incubation of the RAW 264.7 cells for 48 hours with ALA. A deficiency or excess of specific fatty acids affect the cellular membrane fluidity, can also cause changes in cell morphology. Therefore it is appropriate to carry out further research on the ALA properties.
Źródło:
Medicina Internacia Revuo; 2017, 28, 108; 176-181
0465-5435
Pojawia się w:
Medicina Internacia Revuo
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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