It has been seen in individuals with higher levels of serum antioxidants, particularly serum tocopherol shows lower risk of type 2 diabetes mellitus. The primary defence
Pfizer Licensed Compound Library datasheet against oxidative stress in the cell includes reduced glutathione (GSH), and glutathione peroxidase (GSH-Px).18 The most common antioxidant deficiencies reported in diabetes are lower levels of ascorbate, glutathione and superoxide dismutase. In diabetic neutrophils and monocytes lower concentrations of reduced glutathione have been documented. Plants particularly those with high levels and strong antioxidant compounds have an important role in improving the disorders involving oxidative stress such as diabetes mellitus. There are many investigations which have studied the effect of these plants and their antioxidant ingredients on diabetes and its complications and achieved good results showing that effects of plants with high levels of antioxidants in the management of diabetes mellitus.19 Supplementing enzymatic and/or non-enzymatic antioxidants in infants could be beneficial in decreasing injury from this website excess production of ROS, particularly in disorders such as bronchopulmonary dysplasia, retinopathy of prematurity, periventricular leukomalacia, and necrotizing enterocolitis.20 Enzymatic antioxidants are gestationally regulated, with decreased levels in premature
newborns compared to full term neonates. ROS-induced injury could be reduced by overexpression of antioxidants as suggested by various models using mafosfamide transformed human alveolar epithelial cells. Increased expression of either MnSOD or CuZnSOD reverses the growth inhibitory effects of hyerpoxia in lung epithelial cells.21 Apart from reducing ROS production, overexpression of SOD also mitigated the activation of the JNK/AP1 pathway which has been implicated in ROS-induced mitochondrial injury and apoptotic cell death.22 Melatonin is a pineal hormone which exhibits an indirect antioxidant
effect, by supporting SOD and glutathione peroxidase activity as well as direct effects, through lipid peroxidation and scavenging oxygen-induced ROS.23 Resistance to oxidative stress also relies on non-enzymatic pathways as non-enzymatic antioxidants (NAC) get depleted in response to ROS-mediated stress. The effects of vitamin A are likely to mediate on retinol-binding protein and the retinoic acid receptor through its action. NAC is a precursor of the antioxidant glutathione and a large multicenter trial showed no reduction in survival or the incidence of BPD in 36 weeks CGA or improved pulmonary function at term.24 Ceruloplasmin, transferrin, and ferroxidase all aid in the metabolism of iron, which can act as a potent oxidizing agent. Diminished function or Libraries bioavailability of these proteins may predispose the preterm infant to increased production of ROS.
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