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    Comparison of urinary neutrophil gelatinase-associated lipocalin, C-reactive protein and procalcitonin in the diagnosis of late onset sepsis in preterm newborns
    (Taylor & Francis Ltd, 2013) Ertuğrul, Sabahattin; Annagür, Ali; Kurban, Sevil; Altunhan, Hüseyin; Örs, Rahmi
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    Serum ischemia-modified albumin levels at diagnosis and during treatment of late-onset neonatal sepsis
    (Taylor & Francis Ltd, 2014) Yerlikaya, Fatma Hümeyra; Kurban, Sevil; Mehmetoğlu, İdris; Annagür, Ali; Altunhan, Hüseyin
    Sepsis is one of the most common infectious conditions in the neonatal period, and continues as a major source of morbidity and mortality. The aim of this study is to determine serum ischemia-modified albumin (IMA) levels in late-onset neonatal sepsis at the time of diagnosis and after therapy, and to show the meaningful on the follow-up. Also, it is aimed to compare serum IMA levels with serum C-reactive protein (CRP), procalcitonin (PCT) levels and white blood cell count. The study was performed on 33 premature babies with sepsis and 21 healthy premature controls at 7-28 days of age. In the sepsis group, biochemical parameters and blood culture samples were obtained from the blood at the onset and on the fifth day of treatment for each patient. Serum IMA, CRP, PCT and white blood cell count were significantly higher in the sepsis group before treatment when compared with the control group. In addition, the levels of IMA were positively correlated with white blood cell count, CRP and PCT in the sepsis group before treatment. In conclusion, serum IMA levels may be useful in late-onset neonatal sepsis at the time of diagnosis and after therapy. As far as we know this is the first report about the assesment of illness diagnosis and after therapy using serum IMA levels, and further studies are needed to confirm our results in larger groups of patients.
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    Total antioxidant and total oxidant states, and serum paraoxonase-1 in neonatal sepsis
    (Wiley, 2015) Annagür, Ali; Örs, Rahmi; Altunhan, Hüseyin; Kurban, Sevil; Ertuğrul, Sabahattin
    BackgroundParaoxonase-1 (PON-1) is an enzyme with a glycoprotein structure that depends on calcium and which is located in serum high-density lipoprotein (HDL). The aim of this study was to evaluate PON-1, and oxidant/antioxidant state, before and after treatment for neonatal sepsis, and to determine the usability of PON-1 in neonatal sepsis treatment. MethodsA total of 35 neonatal sepsis patients and 35 healthy controls were included in the study. Activity of PON-1, total oxidant state (TOS) and total antioxidant state (TAS) were measured and oxidative stress index (OSI) was calculated. ResultsIn the neonatal sepsis patients, pre-treatment TAS, TOS and OSI were significantly higher than the post-treatment levels (P < 0.0001, P < 0.0001 and P < 0.0001, respectively), and PON-1 was significantly lower (P < 0.0001). Similarly, pre-treatment TAS, TOS and OSI in the sepsis group were also significantly higher than in the control group (P < 0.0001, P < 0.0001 and P < 0.0001, respectively) and PON-1 was significantly lower (P < 0.0001). Post-treatment TAS in the sepsis group was significantly higher than in the control group (P = 0.009), whereas post-treatment TOS, OSI and PON-1 in the sepsis group were not significantly different to the control group (P = 0.078, P = 0.597 and P = 0.086, respectively). ConclusionLow serum PON-1 was found in neonatal sepsis. Serum PON-1 is thought to be a useful biomarker to evaluate the effectiveness of treatment and recovery in neonatal sepsis.
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    Total oxidant, antioxidant, and paraoxonase levels in babies born to pre-eclamptic mothers
    (Wiley, 2013) Altunhan, Hüseyin; Annagür, Ali; Kurban, Sevil; Ertuğrul, Sabahattin; Konak, Murat; Örs, Rahmi
    Aim The aim of this study was to investigate the oxidant-antioxidant status in babies born to pre-eclamptic mothers (BBPM). Material and Methods The paraoxonase (PON)-1, total antioxidant status (TAS), and total oxidant status (TOS) levels were measured in the cord blood and venous blood (7th day) of BBPM (n=31) and babies born to normotensive mothers (n=25). Results The PON-1 and TOS levels in the cord blood and venous blood on the 7th day were not significantly different between the two groups; however, the cord blood TAS levels were higher in BBPM (P=0.001), and the TAS levels in the venous blood were higher in the control group (P=0.021). Furthermore, the cord blood PON-1 levels of babies born to severely pre-eclamptic mothers (n=18) were higher than those of babies born to moderately pre-eclamptic mothers (n=13) (P=0.042). There were no differences in the cord blood TAS and TOS levels and venous blood PON-1, TAS, and TOS levels between babies born to severely and moderately pre-eclamptic mothers. Conclusion The increased TAS levels found in the cord blood of BBPM indicate that the fetus is protected against oxidative damage caused by increased oxidative stress in the mother. To the best of our knowledge, this is the first study in the published work investigating PON-1 levels in BBPM.