Investigation on Malondialdehyde, S100B, and Advanced Oxidation Protein Product Levels in Significant Hyperbilirubinemia and the Effect of Intensive Phototherapy on these Parameters

• Published in: Pediatrics and neonatology Vol. 56; no. 2; pp. 95 - 100
• Main Authors: Sarici, Dilek, Gunes, Tamer, Yazici, Cevat, Akin, Mustafa Ali, Korkmaz, Levent, Memur, Seyma, Kurtoglu, Selim, Ozturk, Mehmet Adnan, Sarici, Serdar Umit
• Format: Journal Article
• Language: English
• Published: Singapore Elsevier 01-04-2015
• Subjects: advanced oxidation protein product; Advanced Oxidation Protein Products - blood; Case-Control Studies; Female; Humans; hyperbilirubinemia; Hyperbilirubinemia, Neonatal - blood; Hyperbilirubinemia, Neonatal - therapy; Infant, Newborn; intensive phototherapy; Internal Medicine; Male; malondialdehyde; Malondialdehyde - blood; Oxidative Stress - physiology; Pediatrics; Phototherapy; S100 Calcium Binding Protein beta Subunit - blood; S100B protein; malondialdehyde; advanced oxidation protein product; S100B protein; intensive phototherapy; hyperbilirubinemia
• ISSN: 1875-9572; 2212-1692
• DOI: 10.1016/j.pedneo.2014.06.006

Background The parameters of oxidative stress [advanced oxidation protein products (AOPPs), malondialdehyde (MDA), and S100B] and the effect of intensive phototherapy (PT) on these parameters have not been studied extensively in newborns with significant hyperbilirubinemia (SH). We aimed to measure the levels of MDA, S100B, and AOPPs in newborns with SH, and to compare newborns with healthy control newborns without hyperbilirubinemia on the basis of these parameters of oxidative stress. In addition, we investigated the effect of intensive PT on these parameters during the treatment of SH and report our findings for the first time in the literature. Methods The study was performed in newborns ( n  = 62) who underwent intensive PT because of SH. Newborns without jaundice constituted the control group ( n  = 30). Both groups were compared with respect to demographic characteristics and biochemical (laboratory) parameters including MDA, AOPPs, and S100B. MDA, AOPPs, and S100B were also compared before and after intensive PT in the PT group. In the study group, a correlation analysis of demographic characteristics; MDA, AOPP, and S100B values; and changes occurring in MDA, AOPPs, and S100B values due to the effect of intensive PT was performed. Results Serum total bilirubin, S100B, and MDA levels in the PT group before performing PT were significantly higher than those in the control group. In newborns receiving PT serum total bilirubin, MDA and AOPP levels decreased significantly after intensive PT. In correlation analysis, a statistically significant negative correlation was found only between the amount of bilirubin decrease with PT and AOPP levels after PT in the study group. Conclusion Whether the significant decrease in MDA levels, which was higher prior to PT, is due to the decrease in serum bilirubin levels or due to the effect of intensive PT itself remains to be determined in further studies. The decrease in AOPP levels after PT implies that intensive PT has protective effects on oxidative stress.