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    Amniotic fluid urocortin-1 concentrations for the prediction of preterm delivery
    (Wiley, 2013) Karaer, Abdullah; Celik, Ebru; Celik, Onder; Simsek, Omer Yavuz; Ozerol, Ibrahim Halil; Yilmaz, Ercan; Turkcuoglu, Ilgin
    Aim The aim of this study was to analyze whether urocortin-1 concentration in midtrimester amniotic fluid could serve as an indicative marker of preterm labor. Material and Methods A retrospective cohort study was conducted. Urocortin-1 concentrations in midtrimester amniotic fluid were measured in 22 pregnant women with preterm deliveries and 45 women who delivered at term using enzyme-linked immunosorbent assay. Results The median amniotic fluid urocortin-1 concentration was significantly lower in the women with preterm birth (40.06pg/mL; range, 13.77-67.58pg/mL) than in the women who gave birth at term (49.56pg/mL; range, 26.25-175.9pg/mL; P=0.022). The result of receiver-operator curve analysis indicates that an amniotic fluid urocortin-1 concentration57.88pg/mL had an area under the curve of 0.673 (95% confidence interval, 0.55-0.78; P=0.01) with a sensitivity of 81.8%, specificity of 40.0%, positive predictive value of 40%, and a negative predictive value of 82% in identifying which of the patients subsequently delivered prematurely. Conclusions These results suggest that low urocortin-1 concentration in midtrimester amniotic fluid could be used as an indicative marker of preterm birth.
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    Atorvastatin exerts anti-nociceptive activity and decreases serum levels of high-sensitivity C-reactive protein and tumor necrosis factor-? in a rat endometriosis model
    (Springer Heidelberg, 2014) Simsek, Yavuz; Gul, Mehmet; Yilmaz, Ercan; Ozerol, Ibrahim Halil; Ozerol, Elif; Parlakpinar, Hakan
    Purpose The purpose of this study was to examine the effects of atorvastatin in the treatment of experimental endometriosis. Methods Endometriosis was induced in 24 female rats. 4 weeks after the procedure dimensions of the foci were recorded. Rats were divided into three groups: in Group 1 (n = 8), a daily dose of 10 mg/kg atorvastatin was given for 14 days. In the second group (n = 8), a single dose of 1 mg/kg leuprolide acetate was injected intraperitoneally. The rats in Group 3 (n = 8) were received 1 mg/kg i.p. 0.9 % NaCl. At the end of the treatment, laparotomy was performed, and the dimensions of the endometriotic foci were recorded. Biochemical, histopathological and immunohistochemical studies were performed and nociception was compared in groups. Results Atorvastatin treatment exhibited significant analgesic activity in hot plate model (P = 0.022). The serum hs-CRP and tumor necrosis TNF-alpha levels were similar between the Group 2 and Group 3 (P > 0.05); however atorvastatin caused significant decrease in both serum markers. The histological and immunohistochemical scores were also found to be markedly lower in Group 1 and Group 2 (P < 0.05). Conclusion Atorvastatin treatment may have a therapeutic potential in the treatment of endometriosis through its anti-inflammatory and anti-nociceptive properties.
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    Prediction of spontaneous preterm delivery in women with preterm labor: Analysis of interleukin-17, migration inhibitory factor, monocyte chemotactic protein-1 in maternal serum and cervicovaginal fluid
    (Walter De Gruyter Gmbh, 2012) Karaer, Abdullah; Celik, Onder; Dogan, Cagdas; Ozerol, Ibrahim Halil; Simsek, Omer Yavuz; Celik, Ebru; Ozerol, Elif
    Background: To analyze whether, interleukin (IL)-17, migration inhibitory factor (MIF), monocyte chemotactic protein (MCP)-1 in maternal serum and cervicovaginal fluid, can identify women in preterm labor with intact membranes who will deliver spontaneously within 7 days of sampling. Material and Methods: Forty-four (44) singleton pregnancies between 26-34 weeks of gestation that had threatened preterm labor, enrolled from October 2010 and October 2011. Cervical length was evaluated with transvaginal ultrasonography. Serum and cervicovaginal fluid IL-17, MIF, and MCP-1 were measured with the use of enzyme linked immune assay. Subjects were followed up for premature delivery within 7 days. Results: Seventeen of 44 patients (39%) had preterm delivery and 15 of 44 (34%) delivered within 7 day from admission. The only significant predictor for establishment of preterm delivery within 7 days was cervical length. The median cervical length was 18 mm (range: 5-27) in women who delivered in 7 days and 27 mm (range: 9-44) in women who delivered beyond 7 days of presentation (p-0.001). There was no association between serum and cervicovaginal fluid IL-17, MIF and MCP-1 levels and preterm delivery within 7 days. Conclusions: Cervical length could serve as a predictive factor for the progress of threatened preterm labor to true preterm labor. Serum and cervicovaginal fluid IL-17, MIF and MCP-1 can not be used to differentiate true preterm labor.
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    Prevalence and antibiotic susceptibility of Mycoplasma hominis and Ureaplasma urealyticum in pregnant women
    (Elsevier Sci Ltd, 2010) Bayraktar, Mehmet Refik; Ozerol, Ibrahim Halil; Gucluer, Nilay; Celik, Onder
    Background: Mycoplasma hominis and Ureaplasma urealyticum are important opportunistic pathogens implicated in urogenital infections and complicated pregnancy. We aimed to study the role of these pathogens in symptomatic and asymptomatic pregnant women and determine their clinical significance and antibiotic susceptibility. Methods: One hundred pregnant women were included in the study, 50 symptomatic patients and 50 asymptomatic controls. Duplicate endocervical samples were taken from each individual and analyzed using the Mycoplasma IST-2 kit and A7 agar medium. Antimicrobial susceptibility was tested against doxycycline, josamycin, ofloxacin, erythromycin, tetracycline, ciprofloxacin, azithromycin, clarithromycin, and pristinamycin using the Mycoplasma IST-2 kit. Results: Twelve symptomatic pregnant women had spontaneous abortions. Of these, eight (66.7%) cases had been colonized with M. hominis and/or U. urealyticum. Of the pregnant women infected with M. hominis and/or U. urealyticum, 40.7% delivered a low birth weight infant. M. hominis was successfully cultured in five women (5%) and U. urealyticum in 27 (27%). Among positive cultures, 15.6% and 84.4% of isolates were M. hominis and U. urealyticum, respectively. M. hominis and U. urealyticum were uniformly susceptible to doxycycline, tetracycline, and pristinamycin, which may be successfully used in the empirical therapy of infected individuals. Conclusions: It can be concluded that genital colonization with M. hominis and U. urealyticum may predispose to spontaneous abortion and low birth weight. (C) 2009 International Society for Infectious Diseases. Published by Elsevier Ltd. All rights reserved.
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    The relationship between serum FGF-23 concentration and insulin resistance, prediabetes and dyslipidemia in obese children and adolescents
    (Walter De Gruyter Gmbh, 2019) Kutluturk, Yesim; Akinci, Aysehan; Ozerol, Ibrahim Halil; Yologlu, Saim
    Background: Obesity is known to cause metabolic disturbances including insulin resistance, dyslipidemia and alters bone mineralization. The effects of obesity on fibroblast growth factor 23 (FGF-23), which is important in bone mineralization, have not yet been clarified. Our aim was to investigate the association between FGF-23 concentration and obesity-associated dysmetabolism. Methods: Subjects comprised 46 obese children and adolescents. The same number of age-matched, healthy controls were recruited. Markers of bone mineralization and glucose metabolism were measured. Thyroid function and insulin resistance were investigated in both groups. In obese subjects; an oral glucose tolerance test (OGTT) was performed and hemoglobin A(1c) and lipid fractions were measured. Bone mineral density and hepatic steatosis were investigated. Results: Serum FGF-23, alpha-klotho and 1,25(OH)(2)D-3 concentrations were significantly lower while fasting insulin, fasting glucose, C-peptide and alkaline phosphatase (ALP) concentrations and homeostasis model assessment of insulin resistance (HOMA-IR) were significantly higher in the obese group compared to controls. A significant negative correlation was observed between free tri-iodothyronine (fT3) and both FGF-23 and alpha-klotho in the obese group. Significant negative correlation was found between FGF-23 and C-peptide and a positive correlation was found between FGF-23 and high density lipoprotein-cholesterol (HDL-c) in the obese subjects with impaired glucose tolerance (IGT). Significant negative correlations were found between FGF-23 and both fasting insulin levels and C-peptide levels in the obese subjects with hepatic steatosis. Conclusions: In our study, insulin resistance-associated hyperinsulinism and/or lower 1,25(OH)(2)D-3 levels, both present in obese children and adolescents, may lead to decreased serum FGF-23 concentrations in obese subjects.
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    The role of ghrelin in weight gain and growth in epileptic children using valproate
    (Sage Publications Inc, 2007) Gungor, Serdal; Yucel, Gul; Akinci, Aysehan; Tabel, Yilmaz; Ozerol, Ibrahim Halil; Yologlu, Saim
    Ghrelin is a major hormone, regulating the energy balance of the body. weight gain is a significant side effect of valproic acid, which has not been clearly identified pathogenetically. The aim of this study was to investigate the effect of valproic acid on ghrelin and its potential effects on weight gain and growth. Each patient and control group consisted of 35 children aged 3 to 15 years. Fasting serum glucose, insulin, C-peptide, leptin, ghrelin, insulin-like growth factor-1, and insulin-like growth factor binding protein-3 levels were measured in patients treated with valproic acid before and at month 6 of treatment. A significant increase in body weight body mass index, height, and height standard deviation scores was observed in all patients after 6 months of treatment. Significant increases in growth velocity and weight gain were observed in the patient group compared with controls at 6 months of therapy. A significant increase in serum ghrelin levels (P <.01) was detected at the same time in the study group. A negative correlation of ghrelin with insulin-like growth factor-1 and insulin-like growth factor binding protein-3 was detected. Serum ghrelin levels were significantly increased (P <.05), and insulin-like growth factor-1 and insulin-like growth factor binding protein-3 levels were significantly decreased (P <.01 and P <.05, respectively) in the prepubertal group at 6 months of treatment, but no significant change was observed in the pubertal group. Consequently, ghrelin levels significantly increase in the prepubertal children treated with valproic acid. The weight gain in using valproic acid may be associated with the increase in ghrelin level in the early treatment period.