the effect of salinity was assessed on the activity of some major antioxidant enzymes i.e., superoxide dismutase (sod), peroxidase (pod), catalase (cat), in the seedlings’ roots or shoots of three winter canola (brassica napus l.) cultivars, colvert (tolerant), symbol (semi tolerant) and agat (susceptible). seedlings were treated with 0 (control), 50, 100 and 150 mm nacl for 24 h in hydropoic c...

this study was conducted on two canola (brassica napus) cultivars, okapi a winter type and cold tolerant and rgs003 a spring type and cold sensitive. seedlings were grown in an environmentally controlled growth room with 16 h d-1 photoperiod at 22/16 °c (day/night, control). at the 4-leaf stage, half of pots were transferred to a cold growth room for 7 d at 10/3°c (day/night, cold treatment) an...

the aim followed in this study was to compare the performance of multiple regression vs neural network models to predict the activity of antioxidant enzymes super oxide dismutase (sod), cat alase (cat), ascorbate pero xidase (apx) and peroxidase (pox) in the shoots of wheat (triticum aestivum), alvand cultivar in a soil polluted with cadmium. the treatments consisted of four levels of cadmium (...

The adaptive response of the genome protection mechanism occurs in cells when exposed to genotoxic stress due to the overproduction of free radicals via inflammation and infection. In such circumstances, cells attempt to maintain health via several genome protection mechanisms. However, evidence is increasing that this adaptive response may have deleterious effect; a reduction of antioxidant en...

The present study was designed to explore the relationship between lipid peroxidation and antioxidant enzymes in young Malaysian insulin dependant diabetes mellitus (IDDM) patients. Indicative parameters of lipid peroxidation, activities of antioxidant enzymes and diabetes parameters were evaluated in single blood samples from 30 young type 1 diabetic patients and 30 healthy control subjects. A...

withania somnifera (l.) dunal is an erect evergreen shrub commonly known as ashwagandha. it is widely used in ayurvedic, and in the traditional pharmacopeia system of india. it is one of the major ingredients in many formulations prescribed for a variety of musculo-skeletal conditions including arthritis and rheumatism. in the present study, variations in the quality and quantity of proteins an...

Pollution by heavy metals is a serious problem due to their toxicity and ability to accumulate in the biota. In vivo effects of Cadmium (Cd) levels of expression on antioxidant enzymes such as Catalase (CAT) and Glutathione-S-transferase (GST) were investigated in liver, kidney, gill and brain tissues of freshwater Catfish, Clarias gariepinus. CAT is a common antioxidant enzyme which breaks dow...

As a safeguard against oxidative stress, the balance between the main antioxidant enzymes including superoxide dismutase (SOD), glutathione peroxidase (GPx), and catalase (CAT) was believed to be more important than any single one, for example, dual-functional SOD/CAT enzyme has been proved to have better antioxidant ability than either single enzyme. By combining traditional fusion protein tec...

The release of reactive oxygen and nitrogen species (ROS and RNS) during the inflammatory response generates damages to host tissues, referred to as immunopathology, and is an important factor in ecological immunology. The integrated antioxidant system, comprising endogenous antioxidant enzymes (e.g. superoxide dismutase SOD, and catalase CAT) and dietary antioxidants (e.g. carotenoids), helps ...

Previous studies from this laboratory have demonstrated the presence of oxidative stress and its role in the pathogenesis of lead-induced hypertension. This study was designed to determine whether oxidative stress in animals with lead-induced hypertension is associated with dysregulation of the activities of the main antioxidant enzymes, namely superoxide dismutase (SOD), catalase (CAT), and gl...