Objective. Using a novel assay termed prooxidant-antioxidant balance (PAB) assay to determine prooxidant-antioxidant balance in umbilical cord blood of infants with meconium stained of amniotic fluid (MSAF). Passage of meconium in amniotic fluid is associated with increase of neonatal mortality and morbidity. This complication occurs in about 15% of infants and is more widespread in postterm ne...

Introduction — Increased incidence and prevalence of chronic obstructive pulmonary disease (COPD) provides rationale for describing the progression mechanism, considering interaction key participants this process. The objective our study was to establish dysfunction parameters thiol/disulfide system components adaptive immunity unit in patients with stable (COPD). Material Methods We examined C...

Oxidative stress defines a condition in which the prooxidant-antioxidant balance in the cell is disturbed, resulting in DNA hydroxylation, protein denaturation, lipid peroxidation, and apoptosis, ultimately compromising cells' viability. Probiotics have been known for many beneficial health effects, and the consumption of probiotics alone or in food shows that strain-specific probiotics can pre...

The physiological hydroelectrolytic balance and the redox steady state in the kidney are accomplished by an intricate interaction between signals from extrarenal and intrarenal sources and between antinatriuretic and natriuretic factors. Angiotensin II, atrial natriuretic peptide and intrarenal dopamine play a pivotal role in this interactive network. The balance between endogenous antioxidant ...

Although oxidative stress is implicated in colorectal carcinogenesis, human studies on associations of individual prooxidants and antioxidants with colorectal cancer (CRC) have been inconclusive. We incorporated individual environmental factors known to affect oxidative stress into 4 oxidative balance scores (OBS) and investigated their associations with CRC in the Cancer Prevention Study II Nu...

Aim. This study was aimed at evaluating prooxidant-antioxidant balance (PAB) in patients with systemic lupus erythematosus (SLE) and its relationship with laboratory findings and clinical manifestations. Methods. In this case-control study, 60 patients with SLE and 60 healthy individuals were enrolled. The blood samples were collected and their sera were separated. Subsequently, the prooxidant-...

Luteolin (3',4',5,7-tetrahydroxyflavone) is an active constituent of Lonicera japonica (Caprifoliaceae), and has been reported to produce anti-tumor activities. However, the apoptosis-inducing activity of luteolin still remains unknown. Flavonoids have been found to possess prooxidant and antioxidant action. The biological and pharmacological effect of flavonoid may depend upon its behavior as ...

For the reason of the biological importance of antioxidant enzymes and reactive oxygen species, it was deemed important to survey the literature for reports on the relation between them. The main aim of this overview not only uncovered the baseline works on aspects of prooxidant and antioxidant processes in different species, but also illuminated the mechanism of the free radical theory of agin...

Oxidized LDL is present within atherosclerotic lesions, demonstrating a failure of antioxidant protection. A normal human serum ultrafiltrate of Mr below 500 was prepared as a model for the low Mr components of interstitial fluid, and its effects on LDL oxidation were investigated. The ultrafiltrate (0.3%, v/v) was a potent antioxidant for native LDL, but was a strong prooxidant for mildly oxid...