A major cause of male infertility, which includes 50 causes of infertility, is oxidative stress.  The aerobic respiration in the sperm cell is associated with the production of reactive oxygen species (ROS). Some reactions such as sperm capacitation and acrosome reactions require moderate levels of ROS. However, when the amount of ROS production surpasses the natural antioxidant defense of the ...

background:in recent years, the use of chemicals in agriculture, industry, and public health has become so common that the environment is continuously contaminated by the toxic substance-like metals. aluminum released due to anthropogenic activities such as mining and industrial uses. aluminium has several industrial uses. the present study was designed to investigate the effect of aluminium ch...

Aims: The present research was done to evaluate the antioxidant activity of aqueous extract Withania somnifera (Ashwagandha) in equine. Herbal antioxidants have gained popularity due their potency and safety, oxidative stress is a condition that more prevalent horses performing physical activities.
 Methods: Twenty clinically healthy were selected equally divided into treatment control gro...

Formation of small and highly reactive oxygen species (ROS) is normal phenomena in living cells. The Reactive Oxygen Species cover free radical such as superoxide (O2 ̅ ), hydroxyl (OH), perhydroxy (HO2 ̅ ) and alkoxy (RO) and non-radicals like, hydrogen peroxide (H2O2) and singlet oxygen ( O2). Their formation and reactivity is well established and found to be tightly regulated. ROS level exceed...

An amperometric cytochrome c-based electrode was developed and applied to the quantification of the scavenging capacity of antioxidants. The enzymatic biosensor was constructed by covalently immobilizing both cyt c and XOD on a mercaptoundecanoic acid/mercaptoundecanol mixed SAMmodified screen-printed gold electrode. The concentration which induces a 50% inhibition of the superoxide level (IC50...

Oxidant byproducts, such as superoxide anion (O2 ) and hydrogen peroxide, are produced as a consequence of normal aerobic metabolism. These molecules, which are highly reactive with other biological molecules, are referred to as reactive oxygen species (ROS). Under normal physiological conditions, ROS production is balanced by an efficient system of antioxidants, molecules that are capable of s...

Research on the use, properties, characteristics and sources of antioxidants especially phenolic compounds, flavonoids, vitamins, synthetic chemicals and some micronutrients began in the late 18(th) century. Since then antioxidant research has received considerable attention and over a hundred thousand papers have been published on the subject. This has led to a rampant use of antioxidants in o...

OBJETIVE To establish association between socioeconomic status and plasmatic markers of lipoperoxidation and antioxidants in Venezuelan school-age children from the middle-class and in critical poverty. METHODS Cross-sectional study with a sample of 114 school-age children (aged 7-9). The socioeconomic status, dietary intake of macro and micro-nutrients, weight, height, lipid profile, indicat...

Salinity stresses act as inhibitor factors of plant growth. They can change the physiological characteristics and limit the production of crops. Sodium nitroprusside (SNP) is a stable free radical which use as a signalling molecule in plants and participates in various plant’s physiological, biochemical and molecular processes and also in plant’s responses to environmental stresses. We investig...

Many free radicals are generates in the human body due to metabolic processes and order counteract harmful effects of these antioxidants, has a complex system natural enzymatic non-enzymatic antioxidant defenses or mechanisms. These mainly responsible for generation different types diseases disorders. Hence protection against radical is important which can also be done by taking diet with maxim...