OBJECTIVES Glutathione (GSH) is an important element of antioxidative barrier. Its biological function consists in eliminating oxygen free radicals. It also acts as a co-substrate in numerous enzymatic reactions catalyzed by glutathione peroxidase (GPx) and glutathione S-transferase (GST). In our study we attempted to assess the effect of hexabromobenzene (HBB) and its metabolites on the level ...

The cerebral epiphysis (pineal gland) secrets melatonin and number of other proteins and peptides. It was thus hypothesized that antioxidant properties of epiphyseal proteins and melatonin could potentially benefit from exogenous therapies. In view of the therapeutic potential of these proteins, the present experiment was conducted to investigate the effect of buffalo epiphyseal proteins (BEP, ...

In this study, to reveal the antioxidant potential of goat milk cells, activities glucose-6-phosphate dehydrogenase (G6PD), glutathione peroxidase (GPx) and levels reduced nicotinamide adenine dinucleotide phosphate (NADPH), total (tGSH),malondialdehyde (MDA), vitamin C (Vit C) protein (TP) in cells were determined correlations between these parameters evaluated. Milk samples collected from 19 ...

Selenium is a key component of many important enzyme systems, including the glutathione peroxidase (GPX) family of enzymes. Glutathione peroxidases are primarily involved in repairing cell membranes damaged by lipid peroxidation caused by reactive oxygen species. The glutathione peroxidases may also have an anti-inflammatory role. Sepsis is known to cause a significant degree of oxidative stres...

The effect of long-term administration of alcohol and cigarette smoke independently and both in combination on lipid peroxidation and antioxidant enzymes, such as superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), and glutathione-S-transferase (GST) was studied in liver, kidney, heart and lungs of albino rats. The levels of peroxidation products viz., malondialdehyde, hyd...

An elevated level of serum urea and creatinine was observed in doxorubicin (DOX) treated animals indicating DOX-induced nephrotoxicity. Enhanced lipid peroxidation (LPO) in the renal tissue was accompanied by a significant decrease in the levels of reduced glutathione (GSH), glutathione peroxidase (GPx), glutathione reductase (GR) and catalase (CAT) activities. Administration of lycopene (LycT)...

It has been suggested that oxidative stress is a feature of aging. The goal of the present study was to assess the oxidant effects related to aging and the protective role of exogenous melatonin in senescence-accelerated mice (SAMP8). Two groups of SAMP8 mice (males and females) were compared with their respective control groups of SAMR1 mice (senescence-resistant inbred strain) to determine th...

This work aimed to evaluate Roundup effects on biochemical biomarkers of the neotropical fish Prochilodus lineatus. Fish were acutely exposed (6, 24 and 96 h) to 10 mg L(-1) of Roundup (RD) or only water (control) and samples of liver, for antioxidants analysis, and brain and muscle, for acetylcholinesterase (AChE) determination, were collected. Fish exposed to RD for 24h showed reduction on su...

During inflammatory processes, immunocompetent cells are exposed to substantial amounts of free radicals and toxic compounds. Glutathione is a cysteine-containing tripeptide that an important ubiquitous antioxidant molecule produced in human organs. The intracellular content GSH regulates the detoxifying capacity cells, as well immune response. particularly liver, where it serves major non-prot...