OBJECTIVE The aim of this study was to evaluate the magnitude of oxidative stress and levels of nitric oxide in patients with oral cavity cancer by analyzing the levels of lipid peroxidation products, antioxidants and nitric oxide products. METHODS This prospective study was conducted on 15 patients with biopsy proven squamous cell cancer of the oral cavity with clinical stage III/IV and an e...

background and objectives:medicinal plants, today it is one of the most important agricultural products. progress in the field of medicinal plants is one of the most important goals at the moment is the agricultural sector. although medicinal plants in our country has been very little attention, but the increasing importance of these plants around the world, today, has attracted the attention o...

cigarette smoke is injurious to both oral cavity and internal body environment. saliva is the firstbody fluid to encounter the dangerous smoke. the aim of our present study was, therefore, toevaluate the influence of smoking on the antioxidant activity of saliva of healthy smokers.antioxidant capacity of saliva was determined using different methods in the centrifuged saliva from25 male smokers...

The radical scavenging antioxidants play an essential role in the maintenance of health and prevention of diseases, and a thorough understanding of the action and capacity of antioxidants is critically important. Despite the assumption that antioxidants must exert beneficial effects against oxidative stress, many large-scale randomized controlled trials gave inconsistent and disappointing resul...

BACKGROUND AND OBJECTIVES The diet is a key environmental factor implicated in health and disease. Oxidative stress, antioxidant status and their relation to diet is a subject of interest in recent years. The objective of the study was to compare lipid peroxidation and antioxidant status in healthy vegetarians and non-vegetarians. METHODS The present study comprises 100 healthy individuals (5...

Due to its localization and function, the cornea is regularly exposed to sunlight and atmospheric oxygen, mainly dioxygen, which produce reactive oxygen species (ROS). Therefore, corneal cells are particularly susceptible to oxidative stress. The accumulation of ROS in the cornea may affect signal transduction, proliferation and may also promote cell death. The cornea has several enzymatic and ...

Objective Indiscriminate use of synthetic pyrethroid insecticides, Cypermethrin (Cyp) and Deltamethrin (Del) have been reported to cause system toxicity in mammals including humans. The dietary antioxidants protects tissues and organs against insecticides/xenobiotic induced damage. In present study, we evaluated the effect of exposure of Cyp and Del and possible protective roles of curcumin and...

Integration is a property of biological systems that refers to the extent to which their components are correlated through functional, structural, developmental or evolutionary interdependency. This study examined patterns of functional integration among different molecular components of the blood redox system (both plasma and red blood cells) in zebra finches (Taeniopygia guttata). Our results...