This work describes the sensing properties of carbon paste electrodes (CPES) prepared from three different types of carbonaceous materials: graphite, carbon microspheres and carbon nanotubes. The electrochemical responses towards antioxidants including vanillic acid, catechol, gallic acid, L-ascorbic acid and L-glutathione have been analyzed and compared. It has been demonstrated that the elect...

Purpose and methodology: This study investigated the effect of plain kefir on glycemic, antioxidants, immune response and pancreatic β cell regeneration of hyperglycemia Wistar Rats induced by Streptozotocin. Findings: Kefir supplementation 3.6 cc / day affect significantly on blood glucose, antioxidants, lipid peroxidation, and pancreatic β-cells. Statistical analysis showed reduce of glucose ...

Effects of antioxidants on the quality and genomic stability of induced pluripotent stem (iPS) cells were investigated with two human iPS cell lines (201B7 and 253G1). Cells used in this study were expanded from a single colony of each cell line with the addition of proprietary antioxidant supplement or homemade antioxidant cocktail in medium, and maintained in parallel for 2 months. The cells ...

possible health benefits. In order to compare the antioxidant profile of different varieties of high bush blueberries growing in differing conditions, several methodologies were tested. We found that two different UV-Visible spectroscopybased measures of antioxidants were manageable for testing large numbers of berries. These are the FRAP assay (ferric ion reducing antioxidant power) and the Fo...

The expression of most life history traits, such as immunity, growth and the development of sexual signals, is negatively affected by high levels of oxidative stress. Dietary antioxidants can reduce oxidative stress and have therefore been the focus of numerous studies in behavioural and evolutionary ecology in the last few decades. Most of this research has focused on carotenoids, neglecting a...

PURPOSE The aim of the study was to estimate the activity of chosen antioxidants in blood serum and saliva in patients with periodontal disease treated due to epilepsy. MATERIAL AND METHODS Twenty-five epileptics and fifteen control persons were involved in the study. The activity of selected endogenous antioxidants were determined by spectrophotometric assay. Concentrations of vitamin A and ...

We compared the plasma antioxidants level of normal control group with that of hypertensive patients in order to test the hypothesis "that antioxidants level has been diminished in hypertensive patients and that antioxidants are interconnected with each other making a network. The plasma and red blood cells antioxidants level of newly diagnosed hypertensive patients [(n=30), (mean age 53 years)...

Processing of coconut oil among the people is still mostly done traditionally by heating. The produced has poor quality and easily rancid. This because heating can change structure. To overcome this, we need a way that produce with long shelf life. Therefore, there for substances improve oil, named antioxidants. One natural antioxidants be utilized soursop leaves. Antioxidants in leaves are ace...

Natural polyphenol compounds are often good antioxidants, but they also cause damage to cells through more or less specific interactions with proteins. To distinguish antioxidant activity from cytotoxic effects we have tested four structurally related hydroxyflavones (baicalein, mosloflavone, negletein, and 5,6-dihydroxyflavone) at very low and physiologically relevant levels, using two differe...