This study investigated the effect of herbicide metolachlor (MET) on redox homeostasis freshwater green alga Pseudokirchneriella subcapitata. At low MET concentrations (?40 ?g L?1), no effects algal cells were detected. The exposure P. subcapitata to 45–235 L?1 induced a significant increase reactive oxygen species (ROS). intracellular levels ROS particularly increased at high (115 and 235 L?1)...

In the present study, halophilic archaea were isolated from a marine sediment sample. Totally, 15 isolates (AMS 1–15) identified by molecular identification as belonging to ten genera. Further, their extracellular polymeric substances (EPS) extracted (3.172 g/L), and bioactivity was determined in terms of biosurfactant, emulsification, enzymatic non-enzymatic antioxidants, anticancer activity. ...

Oxidative stress is currently hypothesized to be a mechanism underlying diabetes. The present study was designed to evaluate the effect of umbelliferone (UMB), a derivative of coumarin, on erythrocyte lipid peroxidation, antioxidants, and lipid profile in normal and streptozotocin (STZ) diabetic rats. Diabetes was induced in adult male albino rats of Wistar strain, weighing 180 to 200 g, by the...

BACKGROUND Free radical mediated oxidative stress is mainly involved in the pathogenesis of diabetic complications. Proteins and lipids are among the prime targets for oxidative stress. In the present study, we evaluated the oxidative stress in chronic IDDM patients by estimating the lipid peroxidation, protein oxidation, and antioxidants status. SUBJECTS AND DESIGN A total of 35 (15 IDDM + 2...

Physiological challenges during one part of the annual cycle can carry over and affect performance at a subsequent phase, and antioxidants could be one mediator of trade-offs between phases. We performed a controlled experiment with zebra finches to examine how songbirds use nutrition to manage trade-offs in antioxidant allocation between endurance flight and subsequent reproduction. Our treatm...

Here, we grow two different varieties of lentil (lentil-2009 and lentil-93) under drought levels with applications melatonin. Increasing the soil water deficit significantly decreased numerous morphological biochemical characteristics, including shoot length, total chlorophyll content, transpiration rate, in both lentil. Contrastingly, stress increased concentrations malondialdehyde (MDA) hydro...

Dyslipidemia appears to be a conventional risk factor for acute myocardial infarction (AMI). Several studies have reported decreased levels of antioxidants and increased levels of ischemia-modified albumin (IscMA) and lipid peroxides in dyslipidemic myocardial infarct patients. However, literature search reveals no reports of normolipidemic AMI patients with reference to antioxidants and IscMA ...