Purpose: To evaluate whether the systemic oxidative stress biomarkers increased in patients with vitreomacular traction syndrome (VMT).
Methods: This study compared 25 patients diagnosed with VMT with 20 healthy controls. As a biomarker of systemic oxidative stress, malondialdehyde (MDA) was measured. Total oxidant status (TOS) and total antioxidant status (TAS) were measured to evaluate the systemic oxidant status.
Results: Serum MDA values were significantly higher among the patients (p < 0.001). The ideal cut-off value for MDA was determined to be 22.1 µmol/L, with 80% sensitivity and 75% specificity. The between-group differences were not statistically significant for TOS or TAS (p = 0.326 and p = 0.698, respectively).
Conclusion: Increased MDA levels suggest that systemic oxidative stress may play a role in VMT.
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http://dx.doi.org/10.1007/s10792-021-01949-0 | DOI Listing |
Metab Brain Dis
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Fundación de Investigación Hospital Clínico Universitario de Valencia-INCLIVA, Valencia, 46010, Spain.
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In the past two decades, record-breaking heat waves have caused an increasing number of heat-related deaths, including heatstroke, globally. Heatstroke is a life-threatening systemic condition characterized by a core body temperature >40°C and the subsequent development of multiple organ dysfunction syndrome. Lung injury is a well-documented complication of heatstroke and is usually the secondary cause of patient death.
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Department of Microbiology, Immunology, & Cell Biology, West Virginia University School of Medicine, 64 Medical Center Drive, Morgantown, WV, 26506, USA.
Human neonates are predisposed to an increased risk of mortality from infection due to fundamental differences in the framework of innate and adaptive immune responses relative to those in the adult population. As one key difference in neonates, an increase in the immunosuppressive cytokine, IL-27, is responsible for poor outcomes in a murine neonatal model of bacterial sepsis. In our model, the absence of IL-27 signaling during infection is associated with improved maintenance of body mass, increased bacterial clearance with reduced systemic inflammation, and decreased mortality rates that correlate to preservation of glucose homeostasis and insulin production.
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Laboratory Functional Physiology and Bio-Resources Valorisation, Higher Institute of Biotechnology of Beja, University of Jendouba, Avenue Habib Bourguiba BP 382, 9000, Beja, Tunisia.
Iron overload has been shown to have deleterious effects in the brain through the formation of reactive oxygen species, which ultimately may contribute to neurodegenerative disorders. Accordingly, rodent studies have indicated that systemic administration of iron produces excess iron in the brain and results in behavioral and cognitive deficits. To what extent cognitive abilities are affected and which neurobiological mechanisms underlie those deficits remain to be more fully characterized.
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