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Kaya S, Turhan U, Dağ I, Polat I. Association of maternal serum Netrin-1 and Netrin-4 levels with placenta accreta spectrum. Eur Rev Med Pharmacol Sci 2023; 27:4594-4600. [PMID: 37259741 DOI: 10.26355/eurrev_202305_32466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
OBJECTIVE This study aimed to evaluate maternal serum Netrin-1 and Netrin-4 levels in pregnancies complicated with placenta accreta spectrum. PATIENTS AND METHODS This cross-sectional study enrolled 49 pregnant women with the diagnosis of placenta accreta spectrum as the study group. Gestational age-matched 30 uncomplicated pregnant women with prior cesarean delivery and normal placentation were randomly selected as the control group. Maternal serum Netrin-1 and Netrin-4 levels were measured between weeks 34 and 36 of gestation. RESULTS There was no significant difference between the groups in terms of demographic characteristics. Maternal serum Netrin-1 levels were significantly lower in placenta accreta spectrum cases compared with those in the control group (p=0.038). There was no significant difference between the groups in terms of maternal serum Netrin-4 levels (p>0.05). There was a significant negative correlation between maternal serum Netrin-1 levels and the number of prior cesarean deliveries (r=-0.313, p=0.005). CONCLUSIONS The observed decrease in maternal serum Netrin-1 levels in placenta accreta spectrum cases associated with increased angiogenesis might be one of the factors involved in the pathophysiology of this disease.
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Affiliation(s)
- S Kaya
- Department of Maternal-Fetal Medicine, Istanbul Medipol University, İstanbul, Turkey.
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Turhan U, Tatar B. The association between increased maternal PARK7 (DJ-1) levels and the occurrence of preterm premature rupture of membranes - A randomized prospective study. Turk J Obstet Gynecol 2021; 18:279-284. [PMID: 34955006 PMCID: PMC8711678 DOI: 10.4274/tjod.galenos.2021.25588] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Objective: Parkinson’s disease protein 7 (PARK7/DJ-1) is an important antioxidant multiprotein against inflammation and oxidative stress. We therefore planned this study to demonstrate the association between maternal PARK7 levels and the occurrence of preterm premature rupture of membranes (PPROM). Materials and Methods: We enrolled 80 pregnant women; 50 PPROM patients and 30 healthy controls, into this cross- sectional study between the 24th and 36th gestational weeks. Furthermore, we measured serum PARK 7 levels using enzyme-Linked immunosorbent assay method. Results: Plasma PARK7 levels were higher in PPROM patients compared to those in the healthy controls (p<0.001). With a cutoff value of 2.57 pg/mL; PARK 7 had a 92% sensitivity, 86% specificity, 88% positive predictive value and 83% negative predictive value (p<0.01) for PPROM. PARK7 had positive correlation with blood leukocyte levels (p<0.001), C-reactive protein levels (p<0.001), and negatively correlated with birth weight and birth week. Conclusion: PARK 7 is overexpressed in PPROM patients. Due to its anti-inflammatory and antioxidant properties, PARK7 may be a novel marker in better understanding the pathophysiology and prediction of the prognosis PPROM. Further large-scale studies are needed.
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Affiliation(s)
- Uğur Turhan
- University of Health Sciences Turkey, Samsun Training and Research Hospital, Clinic of Obstetrics and Gynecology, Division of Perinatology, Samsun, Turkey
| | - Burak Tatar
- University of Health Sciences Turkey, Samsun Training and Research Hospital, Clinic of Obstetrics and Gynecology, Division of Gynecological Oncology, Samsun, Turkey
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Tatar B, Turhan U. Increased sulfiredoxin-1 levels as compensatory mechanism against reactive oxygen species in women with gestational diabetes mellitus. Turk J Obstet Gynecol 2021; 18:267-271. [PMID: 34955004 PMCID: PMC8711672 DOI: 10.4274/tjod.galenos.2021.26053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Objective: This study aimed to investigate the correlation between serum Sulfiredoxin-1 (Srx-1) levels and gestational diabetes mellitus (GDM). Materials and Methods A total of 40 patients diagnosed with GDM according to the American Diabetes Association Criteria and 40 age matched and gestational age-matched healthy pregnant women as a control group were included in this cross-sectional study. Serum Srx-1 levels and other demographic and laboratory variables were analyzed. Results: Fasting plasma glucose, first and second-hour plasma glucose levels, fasting insulin levels, homeostasis model assessment of insulin resistance (HOMA-IR), and Srx-1 levels were significantly different in patients with GDM than control (p<0.05). Plasma Srx-1 levels significantly correlated with fasting plasma glucose, first and second-hour plasma glucose levels, fasting insulin levels, and HOMA-IR of patients with GDM (p<0.05), whereas no correlation in the control group. Conclusion: This is the first study demonstrating an association between serum Srx-1 levels and GDM. Our results suggest increased serum Srx-1 levels may be a novel predictive marker for GDM. More randomized-controlled trials are needed to evaluate Srx-1 as a marker for adverse fetal results; closer monitoring is warranted with high Srx-1 levels.
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Affiliation(s)
- Burak Tatar
- University of Health Sciences Turkey, Samsun Training and Research Hospital, Clinic of Obstetrics and Gynecology, Samsun, Turkey
| | - Uğur Turhan
- University of Health Sciences Turkey, Samsun Training and Research Hospital, Clinic of Obstetrics and Gynecology, Samsun, Turkey
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Şahin B, Turhan U, Şahin B, Dağ İ, Tinelli A. Maternal Serum Placental Protein-13 Levels in the Prediction of Pregnancies with Abnormal Invasive Placentation. Z Geburtshilfe Neonatol 2021; 225:232-237. [PMID: 33951735 DOI: 10.1055/a-1475-5413] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
OBJECTIVE To evaluate whether placental protein-13 (PP-13) measured in the serum of pregnant women could predict abnormal invasive placentation (AIP) detected by color Doppler ultrasound (US) and magnetic resonance imaging scan in addition to the routine US scan during the third trimester. MATERIALS AND METHODS The prospective case-control study included patients subdivided in 2 groups: 42 pregnant women with a singleton pregnancy at 28-32 weeks of gestation with only suspected AIP, and 32 healthy pregnant women. The serum PP-13 levels were measured in both groups using an enzyme-linked immunosorbent assay (ELISA) method and statistically compared. The cases of AIP were confirmed by placental histopathological examination and/or the uterus removed by hysterectomy after elective caesarean section. RESULTS Serum PP-13 levels of pregnant women with AIP were significantly higher (p<0.001) than those of controls (650.32±387.33 vs. 231.43±94.33). Statistical analysis of maternal serum PP-13 levels above the threshold of 312 pg/ml (measured in the early third trimester) predicted AIP with 76.2% sensitivity and 75% specificity. CONCLUSION Maternal serum PP-13 may have a role in the pathophysiology of AIP owing to its high serum value in the AIP group. The maternal serum dosage of PP-13 levels could improve pregnancy management in those patients suspected of having AIP.
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Affiliation(s)
- Banuhan Şahin
- Department of Gynecology and Obstetrics, Amasya University, Amasya, Turkey
| | - Uğur Turhan
- Department of Gynecology and Obstetrics, Private Perinatology Clinic, Samsun, Turkey
| | - Buğra Şahin
- Department of Gynecology and Obstetrics, Turhal State Hospital, Tokat, Turkey
| | - İsmail Dağ
- Department of Biochemistry, Eyüp State Hospital, İstanbul, Turkey
| | - Andrea Tinelli
- Department of Obstetrics and Gynecology, Veris delli Ponti Hospital, Scorrano, Lecce, Italy, Lecce, Italy
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Şenol G, Aslan Çetin B, Esin D, Tobaş Selçuki NF, Tayyar A, Turhan U, Bütün Z, Yüksel MA. Evaluation of right side foetal myocardial performance index in pregestational and gestational diabetes mellitus. J OBSTET GYNAECOL 2021; 42:91-96. [PMID: 33938355 DOI: 10.1080/01443615.2021.1882971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The aim of our study is to investigate the myocardial performance index (MPI) of the right side of the foetal heart in pregestational and gestational diabetes mellitus and to compare it with non-diabetic pregnancies. This prospective cross-sectional study was conducted between August 2018 and March 2019 at Kanuni Sultan Suleyman Research and Training Hospital. Women with pregestational or gestational diabetes mellitus at 24-34 weeks of gestation were included in the study and non-diabetic pregnant women were included as the control group. MPI of the right side of the foetal heart were evaluated and compared between the groups. A total of 65 pregestational or gestational diabetic patients and 65 non-diabetic patients were included in the study. Isovolumetric contraction time and isovolumetric relaxation time values were significantly longer in the diabetic group (p < .001). Ejection time values were significantly shorter in the diabetic group (p < .001). MPI values were significantly higher in the diabetic group than the non-diabetic group (p < .001). In conclusion, MPI of the right side of the foetal heart is significantly higher in pregestational and gestational diabetes than in the non-diabetic group.IMPACT STATEMENTWhat is already known on this subject? Gestational diabetes mellitus causes foetal cardiomyopathy and foetal diastolic dysfunction. Myocardial performance index (MPI) is a non-invasive, Doppler-derived myocardial performance assessment that is independent of both heart rate and ventricular anatomy.What do the results of this study add? MPI of the right side of the foetal heart was significantly higher in pregestational and gestational diabetes than in the non-diabetic group. There was no difference in right ventricular MPI between pregestational and gestational groups in diabetic pregnancies, and between insulin using and not insulin using groups.What are the implications of these findings for clinical practice and/or further research? Our study results are promising. MPI of the right side of the foetal heart is significantly higher in pregestational and gestational diabetes than in the non-diabetic group. Prospective cohort studies evaluating serial MPI and evaluating by postpartum foetal echocardiography are needed to evaluate possible adverse effects of diabetes on foetal cardiac functions.
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Affiliation(s)
- Gökalp Şenol
- Department of Perinatology, Osmangazi University, Eskişehir, Turkey
| | - Berna Aslan Çetin
- Department of Obstetrics and Gynecology, Kanuni Sultan Suleyman Research and Training Hospital, Istanbul, Turkey
| | - Didem Esin
- Department of Obstetrics and Gynecology, Kanuni Sultan Suleyman Research and Training Hospital, Istanbul, Turkey
| | - Nura Fitnat Tobaş Selçuki
- Department of Obstetrics and Gynecology, Şişli Hamidiye Etfal Research and Training Hospital, Istanbul, Turkey
| | - Ahmet Tayyar
- Department of Perinatology, Medipol University, Istanbul, Turkey
| | - Uğur Turhan
- Department of Perinatology, Samsun Research and Training Hospital, Samsun, Turkey
| | - Zafer Bütün
- Department of Perinatology, Osmangazi University, Eskişehir, Turkey
| | - Mehmet Aytaç Yüksel
- Department of Obstetrics and Gynecology, Beykent University, Istanbul, Turkey
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Turhan U, Şahin B, Dağ İ. Lysyl oxidase like protein-2 (LOXL-2); a novel marker for prediction of intrahepatic cholestasis of pregnancy. J Matern Fetal Neonatal Med 2021; 34:2363-2368. [PMID: 33627052 DOI: 10.1080/14767058.2021.1885646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVE Lysyl oxidase like protein 2 (LOXL-2) is an enzyme that is involved in the development of hepatic fibrosis and bile duct epithelial injury in hepatic cholestasis. Our aim was to investigate maternal serum levels of LOXL-2 and their relationship with fasting total bile acid (FTBA) levels in patients with intrahepatic cholestasis of pregnancy (ICP). MATERIALS AND METHODS Thirty-five pregnant women with ICP and 35 healthy women with uncomplicated pregnancies as the control group, were included in this cross-sectional study. Maternal serum LOXL-2, FTBA and other liver function test levels were compared between the two groups. The predictive cutoff value for LOXL-2 level in ICP was specified. RESULTS Serum LOXL-2 levels were found to be higher in the ICP group compared to the control group (225.699 ± 142.453 vs. 127.731 ± 63.419 pg/mL, p = .001). There was a significant positive correlation between serum LOXL-2 levels and FTBA levels (r = 0.330, p = .003). The optimal cutoff point for LOXL-2 for identifying increased risk of ICP was found to be ≥102 pg/mL, for which the sensitivity and specificity were 96.87% and 48.57%, respectively (p < .001). CONCLUSIONS Maternal serum LOXL-2 levels were significantly higher in women with ICP. LOXL-2 may be both an initiating factor in the pathophysiology of ICP and a marker in the prediction. It may also be a target in terms of preventing strategies in ICP.
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Affiliation(s)
- Uğur Turhan
- Private Clinic, Perinatology, Samsun, Turkey
| | - Banuhan Şahin
- Amasya University, Sabuncuoğlu Şerefeddin Training and Research Hospital, Gynecology and Obstetrics Department, Amasya, Turkey
| | - İsmail Dağ
- Eyüp State Hospital, Biochemistry Department, İstanbul, Turkey
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Turhan U, Ertaş S. A promising novel biomarker for early-onset preeclampsia: soluble trigger receptor expressed on myeloid cells-1 (sTREM-1). J Matern Fetal Neonatal Med 2020; 35:1623-1628. [PMID: 33207989 DOI: 10.1080/14767058.2020.1846706] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
BACKGROUND We aimed to explore TREM-1 activation in pregnant women who has preeclampsia through the measurement of its soluble form sTREM. METHODS A prospective cohort study was conducted. Participants were recruited from antenatal clinic between 1 May 2019 and 31 August 2019, and they all provided written informed consent for participation. Women between 18 and 42 years of age who were diagnosed with early or late-onset preeclampsia (LOP) were offered participation if they did not have any known systemic disease (chronic hypertension, diabetes, hypothyroidism, chronic renal-liver diseases, etc.); autoimmune disorders; multiple pregnancies; presence of fetal structural and chromosomal anomalies; placenta previa; cholestasis of pregnancy; preterm delivery; evidence of chronic and active infection. The primary outcome of the study was to assess any difference between groups in terms of the diagnostic value of sTREM level. RESULTS A total of 80 patients were enrolled; proven early-onset preeclampsia (EOP) (n = 20), LOP (n = 30), and control (n = 30) groups. There was no significant difference among the groups in terms of age and BMI. Mean gestational age at diagnosis of EOP; 30 ± 1.9 and LOP; 34.7 ± 1.9 weeks gestation. The mean sTREM level was 160.130 ± 1.65 pg/ml in the EOP group, 119.337 ± 2.04 pg/ml in LOP group, and 87.764 ± 1.69 pg/ml in the control group. According to subgroup analysis, sTREM levels were significantly higher in EOP group than control group. CONCLUSIONS sTREM might be a promising biomarker for early detection of EOP. However, future studies are necessary to confirm this hypothesis.
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Affiliation(s)
- Uğur Turhan
- Samsun Training and Research Hospital, Samsun, Turkey
| | - Sinem Ertaş
- VKV American Hospital, Women's Health Center, İstanbul, Turkey
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Hatırnaz Ş, Güler O, Başbuğ A, Çetinkaya MB, Kanat-Pektaş M, Bakay K, Çelik S, Şentürk Ş, Soyer-Çalışkan C, Gürçağlar A, Şahin B, Kalkan Ü, Çelik H, Kalyoncu Ş, Bıyık İ, Yassa M, Erol O, Akarsu S, Turhan U, Ulubaşoğlu H, Sparic R, Tinelli A. A Comparative Multicentric Study on Serosal and Endometrial Myomectomy During Cesarean Section: Surgical Outcomes. J INVEST SURG 2020; 34:687-694. [DOI: 10.1080/08941939.2020.1725188] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Şafak Hatırnaz
- Medicana Samsun International Hospital, IVF Center, Sansun, Turkey
| | - Oğuz Güler
- Department of Obstetrics and Gynecology, Bilge Hastanesi, Istanbul, Turkey
| | - Alper Başbuğ
- Department of Obstetrics and Gynecology, School of Medicine, Duzce University, Duzce, Turkey
| | - Mehmet Bilge Çetinkaya
- Department of Obstetrics and Gynecology, School of Medicine, Ondokuzmayis University, Samsun, Turkey
| | - Mine Kanat-Pektaş
- Department of Obstetrics and Gynecology, School of Medicine, Kocatepe University, Afyon, Turkey
| | - Kadir Bakay
- Department of Obstetrics and Gynecology, School of Medicine, Ondokuzmayis University, Samsun, Turkey
| | - Samettin Çelik
- Maternity Hospital, Samsun Training and Research Hospital, Samsun, Turkey
| | - Şenol Şentürk
- Department of Obstetrics and Gynecology, School of Medicine, Recep Tayyip Erdoğan University, Rize, Turkey
| | | | - Aysemin Gürçağlar
- Department of Obstetrics and Gynecology, School of Medicine, Amasya University, Amasya, Turkey
| | - Banuhan Şahin
- Department of Obstetrics and Gynecology, School of Medicine, Amasya University, Amasya, Turkey
| | - Üzeyir Kalkan
- Department of Obstetrics and Gynecology, Özel Egemed Hospital Söke, Aydın, Turkey
| | - Handan Çelik
- Department of Obstetrics and Gynecology, School of Medicine, Ondokuzmayis University, Samsun, Turkey
| | - Şenol Kalyoncu
- Department of Obstetrics and Gynecology, Private Office, Ankara, Turkey
| | - İsmail Bıyık
- Department of Obstetrics and Gynecology, Kütahya Sağlık Bilimleri Üniversitesi, Kütahya, Turkey
| | - Murat Yassa
- Department of Obstetrics and Gynecology, Sağlık Bilimleri Üniversitesi, Şişli Etfal Hastanesi, İstanbul, Turkey
| | - Onur Erol
- Department of Obstetrics and Gynecology, Sağlık Bilimleri Üniversitesi, Antalya Eğitimve Araştırma Hastanesi, Antalya, Turkey
| | | | - Uğur Turhan
- Maternity Hospital, Samsun Training and Research Hospital, Samsun, Turkey
| | - Hasan Ulubaşoğlu
- Maternity Hospital, Samsun Training and Research Hospital, Samsun, Turkey
| | - Radmila Sparic
- Clinic of Gynecology and Obstetrics, Clinical Center of Serbia, Višegradska, Serbia
- School of Medicine, University of Belgrade, Serbia
| | - Andrea Tinelli
- Department of Obstetrics and Gynecology, Division of Experimental Endoscopic Surgery, Imaging, Technology and Minimally Invasive Therapy, Lecce, Italy
- Laboratory of Human Physiology, PhystechBioMed School, Faculty of Biological & Medical Physics, Moscow Institute of Physics and Technology (State University), Dolgoprudny, Moscow Region, Russia
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Temel Yüksel İ, Acar D, Turhan U, Aslan Çetİn B, Köroğlu N, Şenol G, Tayyar A, Yüksel MA. Assessment of fetal right ventricular myocardial performance index changes following intrauterine transfusion. J Matern Fetal Neonatal Med 2019; 34:3046-3049. [PMID: 31608719 DOI: 10.1080/14767058.2019.1677595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
INTRODUCTION Severe fetal anemia may cause cardiac ischemia, reduced contractility, and dysfunction. The purpose of our study is to evaluate right ventricular myocardial performance index (MPI) before and after intrauterine transfusion (IUT) in patients who underwent this procedure because of fetal anemia due to Rh-D alloimmunization. MATERIALS AND METHODS This prospective cohort study was conducted between January 2018 and June 2019 at Kanuni Sultan Suleyman Research and Training Hospital, Istanbul, Turkey. The pregnant women who were applied IUT because of fetal anemia due to Rh-D alloimmunization in our perinatology clinic were included in the study. Fetal right ventricular MPI before and 24 h after IUT were evaluated. RESULTS A total of 28 IUTs were performed in 17 pregnant women during the study period. The isovolumetric contraction time (ICT) and isovolumetric relaxation time (IRT) values measured before IUT, were found to be significantly longer compared to the ICT and IRT values measured after IUT. The MPI values measured after transfusion was found to be higher than before transfusion. CONCLUSIONS The fetal right ventricular MPI increases 24 h after IUT. This increase in the right ventricular MPI might be used as a marker for predicting adverse fetal outcomes following IUT.
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Affiliation(s)
- İlkbal Temel Yüksel
- Department of Obstetrics and Gynecology, Kanuni Sultan Suleyman Research and Training Hospital, Istanbul, Turkey
| | - Deniz Acar
- Department of Perinatology, Sadi Konuk Research and Training Hospital, Istanbul, Turkey
| | - Uğur Turhan
- Department of Perinatology, Samsun Research and Training Hospital, Samsun, Turkey
| | - Berna Aslan Çetİn
- Department of Obstetrics and Gynecology, Kanuni Sultan Suleyman Research and Training Hospital, Istanbul, Turkey
| | - Nadiye Köroğlu
- Department of Obstetrics and Gynecology, Kanuni Sultan Suleyman Research and Training Hospital, Istanbul, Turkey
| | - Gökalp Şenol
- Department of Obstetrics and Gynecology, Kanuni Sultan Suleyman Research and Training Hospital, Istanbul, Turkey
| | - Ahmet Tayyar
- Faculty of Medicine, Department of Perinatology, Medipol University, Istanbul, Turkey
| | - Mehmet Aytaç Yüksel
- Department of Obstetrics and Gynecology, Kanuni Sultan Suleyman Research and Training Hospital, Istanbul, Turkey
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Kaya B, Turhan U, Sezer S, Kaya S, Dağ İ, Tayyar A. Maternal serum galectin-1 and galectin-3 levels in pregnancies complicated with preterm prelabor rupture of membranes. J Matern Fetal Neonatal Med 2019; 33:861-868. [PMID: 31242786 DOI: 10.1080/14767058.2019.1637409] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Objective: To investigate maternal serum galectin-1 and galectin-3 levels in pregnancies complicated with preterm prelabor rupture of membranes (PPROM) and to compare with pregnancies delivered at term.Materials and methods: In this cross-sectional study, 40 women with singleton pregnancies complicated with PPROM between 24 and 34 weeks of gestation were compared with gestational age-matched 40 pregnant women with no obstetrics complications, who delivered at term. The maternal serum galectin-1 and galectin-3 levels were measured.Results: Patients complicated with PPROM had significantly higher levels of galectin-1 (p = .001) and galectin-3 (p = .003) than the control group. Maternal serum galectin-3 levels were found significantly negatively correlated with the gestational age at delivery and birth weight.Conclusion: Maternal serum galectin-1 and galectin-3 levels were significantly higher in pregnancies complicated with PPROM. Galectin-1 and galectin-3, with their regulatory effects in key biological processes, may be both an initiating factor in the pathophysiology of PPROM, a marker in the prediction, and a target of preventing strategies of PPROM.
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Affiliation(s)
- Başak Kaya
- Department of Maternal-Fetal Medicine, İstanbul Medipol University Hospital, İstanbul, Turkey
| | - Uğur Turhan
- Department of Maternal-Fetal Medicine, Health Sciences University, Samsun Education and Research Hospital, Samsun, Turkey
| | - Salim Sezer
- Department of Obstetrics and Gynecology, Health Sciences University, Kanuni Sultan Süleyman Education and Research Hospital, İstanbul, Turkey
| | - Serdar Kaya
- Department of Maternal-Fetal Medicine, Akdeniz University, Antalya, Turkey
| | - İsmail Dağ
- Department of Clinical Biochemistry, Eyüp State Hospital, İstanbul, Turkey
| | - Ahmet Tayyar
- Department of Maternal-Fetal Medicine, İstanbul Medipol University Hospital, İstanbul, Turkey
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Kaya B, Turhan U, Sezer S, Bestel A, Okumuş ZG, Dağ İ, Erel Ö. Maternal serum TXNDC5 levels and thiol/disulfide homeostasis in preeclamptic pregnancies. J Matern Fetal Neonatal Med 2018; 33:671-676. [PMID: 30522366 DOI: 10.1080/14767058.2018.1557140] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Objective: To investigate thiol/disulfide homeostasis (TDH) and thioredoxin domain-containing 5 (TXNDC5) level in early and late-onset preeclampsia.Material and methods: In this cross-sectional study, 24 pregnant women with early-onset preeclampsia and 26 pregnant women with late-onset preeclampsia were compared with 30 pregnant women with no obstetric complications. The serum TXNDC5 levels and thiol/disulfide homeostasis were measured.Results: Serum TXNDC5 levels were significantly higher in the early-onset and late-onset preeclampsia groups compared with the control group (p < .05). Native thiol and total thiol levels were significantly lower in the early-onset and late-onset preeclampsia groups than control group. The disulfide levels were found as significantly high in early preeclamptic patients compared to control group (p < .05). The highest levels of TXNDC5 and the lowest levels of native thiol and total thiol were found in early-onset preeclampsia group. No significant difference was found between the patients with early onset and late onset preeclampsia regarding TXNDC5 levels and thiol/disulfide homeostasis (p > .05).Conclusion: Serum TXNDC5 levels were significantly higher in patients with early-onset and late-onset preeclampsia. The dynamic thiol/disulfide homeostasis was impaired in favor of the oxidized state in patients with preeclampsia.
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Affiliation(s)
- Başak Kaya
- Department of Maternal-Fetal Medicine, Health Sciences University, Antalya Education and Research Hospital, Antalya, Turkey
| | - Uğur Turhan
- Department of Maternal-Fetal Medicine, Health Sciences University, Kanuni Sultan Süleyman Education and Research Hospital, İstanbul, Turkey
| | - Salim Sezer
- Department of Maternal-Fetal Medicine, Health Sciences University, Kanuni Sultan Süleyman Education and Research Hospital, İstanbul, Turkey
| | - Ayşegül Bestel
- Department of Obstetrics and Gynecology, Health Sciences University, Kanuni Sultan Süleyman Education and Research Hospital, İstanbul, Turkey
| | - Zihniye Gonca Okumuş
- Department of Obstetrics and Gynecology, Health Sciences University, Kanuni Sultan Süleyman Education and Research Hospital, İstanbul, Turkey
| | - İsmail Dağ
- Department of Clinical Biochemistry, Eyüp State Hospital, İstanbul, Turkey
| | - Özcan Erel
- Department of Clinical Biochemistry, Yıldırım Beyazıt University, Ankara, Turkey
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de Gramatica M, Massacci F, Shim W, Turhan U, Williams J. Agency Problems and Airport Security: Quantitative and Qualitative Evidence on the Impact of Security Training. Risk Anal 2017; 37:372-395. [PMID: 27031572 DOI: 10.1111/risa.12607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We analyze the issue of agency costs in aviation security by combining results from a quantitative economic model with a qualitative study based on semi-structured interviews. Our model extends previous principal-agent models by combining the traditional fixed and varying monetary responses to physical and cognitive effort with nonmonetary welfare and potentially transferable value of employees' own human capital. To provide empirical evidence for the tradeoffs identified in the quantitative model, we have undertaken an extensive interview process with regulators, airport managers, security personnel, and those tasked with training security personnel from an airport operating in a relatively high-risk state, Turkey. Our results indicate that the effectiveness of additional training depends on the mix of "transferable skills" and "emotional" buy-in of the security agents. Principals need to identify on which side of a critical tipping point their agents are to ensure that additional training, with attached expectations of the burden of work, aligns the incentives of employees with the principals' own objectives.
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Affiliation(s)
- Martina de Gramatica
- Department of Information Engineering and Computer Science, University of Trento, Povo, Italy
| | - Fabio Massacci
- Department of Information Engineering and Computer Science, University of Trento, Povo, Italy
| | - Woohyun Shim
- Department of Information Engineering and Computer Science, University of Trento, Povo, Italy
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Ocal N, Dogan D, Ocal R, Tozkoparan E, Deniz O, Ucar E, Gumus S, Tasci C, Yildiz B, Taskin G, Taskin A, Badem S, Turhan U. Effects of radiological extent on neutrophil/lymphocyte ratio in pulmonary sarcoidosis. Eur Rev Med Pharmacol Sci 2016; 20:709-714. [PMID: 26957274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE Determining the severity of sarcoidosis is based on the clinical and radiological findings of the disease and the changes in pulmonary function test results. On the other hand; studies are ongoing for objective and easy markers in this respect. Neutrophil/lymphocyte ratio (NLR) is shown as a good prognostic marker for inflammation due to tissue damage in recent clinical trials. In this study, we aimed to identify the possible relationship between NLR and radiological extent of sarcoidosis. PATIENTS AND METHODS Data of 122 patients included in the study were evaluated retrospectively in terms of age, gender, complete blood count parameters, erythrocyte sedimentation rate (ESR) and radiological findings at the time of diagnosis. RESULTS Mean NLR and ESR were significantly different between radiological stages according to chest radiography and also total HRCT score (THS) groups according to parenchymal involvement in thorax tomography (p <0.05). Mean NLR was found to be 1.28 in stage 0, 1.65 in stage 1, 2.88 in stage 2,5.47 in stage 3 and 8.48 in stage 4; 1.63 in THS group 1, 2.01 in group 2, 3.47 in group 3 and 5.46 in group 4. There were statistically significant positive correlations between NLR and WBC, NLR and THS, NLR and ESR, THS and ESR, ESR and platelet, WBC and #neutrophil, WBC and #lymphocyte. CONCLUSIONS Our findings suggest that NLR might be used as a prognostic marker in pulmonary sarcoidosis.
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Affiliation(s)
- N Ocal
- Department of Intensive Care, Gulhane Military Medical Faculty, Ankara, Turkey.
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Gül M, Bayat N, Çetin A, Kepekçi RA, Şimşek Y, Kayhan B, Turhan U, Otlu A. Histopathological, Ultrastructural and Apoptotic Changes in Diabetic Rat Placenta. Balkan Med J 2015; 32:296-302. [PMID: 26185719 DOI: 10.5152/balkanmedj.2015.15290] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Accepted: 01/13/2015] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND The exchange of substances between mother and fetus via the placenta plays a vital role during development. A number of developmental disorders in the fetus and placenta are observed during diabetic pregnancies. Diabetes, together with placental apoptosis, can lead to developmental and functional disorders. AIMS Histological, ultrastructural and apoptotic changes were investigated in the placenta of streptozotocin (STZ) induced diabetic rats. STUDY DESIGN Animal experimentation. METHODS In this study, a total of 12 female Wistar Albino rats (control (n=6) and diabetic (n=6)) were used. Rats in the diabetic group, following the administration of a single dose of STZ, showed blood glucose levels higher than 200 mg/dL after 72 hours. When pregnancy was detected after the rats were bred, two pieces of placenta and the fetuses were collected on the 20(th) day of pregnancy by cesarean incision under ketamine/ xylazine anesthesia from in four rats from the control and diabetic groups. Placenta tissues were processed for light microscopy and transmission electron microscopy (TEM). Hematoxylin-eosin (HE) and periodic acid Schiff-diastase (PAS-D) staining for light microscopic and caspase-3 staining for immunohistochemical investigations were performed for each placenta. Electron microscopy was performed on thin sections contrasted with uranyl acetate and lead nitrate. RESULTS Weight gain in the placenta and fetuses of diabetic rats and thinning of the decidual layer, thickening of the hemal membrane, apoptotic bodies, congestion in intervillous spaces, increased PAS-D staining in decidual cells and caspase-3 immunoreactivity were observed in the diabetic group. After the ultrastructural examination, the apoptotic appearance of the nuclei of trophoblastic cells, edema and intracytoplasmic vacuolization, glycogen accumulation, dilation of the endoplasmic reticulum and myelin figures were observed. In addition, capillary basement membrane thickening, capillary endothelial cells chromatin condensation in the nucleus and corrugation of the nucleus were found. CONCLUSION Diabetes causes histomorphometric, ultrastructural and apoptotic changes in rat placenta.
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Affiliation(s)
- Mehmet Gül
- Department of Histology and Embriyology, İnönü University Faculty of Medicine, Malatya, Turkey
| | - Nuray Bayat
- Department of Histology and Embriyology, İnönü University Faculty of Medicine, Malatya, Turkey
| | - Aslı Çetin
- Department of Histology and Embriyology, İnönü University Faculty of Medicine, Malatya, Turkey
| | - Remziye Aysun Kepekçi
- Department of Biology, Gaziantep University Faculty of Arts and Science, Gaziantep, Turkey
| | - Yavuz Şimşek
- Department of Obstetrics and Gynecology, İnönü University Faculty of Medicine, Malatya, Turkey
| | - Başak Kayhan
- Department of Medical Biology and Genetics, İnönü University Faculty of Medicine, Malatya, Turkey
| | - Uğur Turhan
- Department of Obstetrics and Gynecology, İnönü University Faculty of Medicine, Malatya, Turkey
| | - Ali Otlu
- Department of Histology and Embriyology, İnönü University Faculty of Medicine, Malatya, Turkey
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Simşek Y, Parlakpınar H, Turhan U, Tağluk ME, Ateş B. Dual effects of melatonin on uterine myoelectrical activity of non-pregnant rats. J Turk Ger Gynecol Assoc 2014; 15:86-91. [PMID: 24976773 DOI: 10.5152/jtgga.2014.26932] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2013] [Accepted: 12/29/2013] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE In this experimental study, we aimed to investigate the role of melatonin on uterine myoelectrical activity of non-pregnant rats. MATERIAL AND METHODS Forty-six female rats were assigned to six groups: (1) control; (0.2 mL 0.9% NaCl was injected intravenously (IV), n=6); (2) melatonin applied as 0.4 mg/kg/IV (n=8); (3) melatonin applied as 4 mg/kg/IV (n=8); (4) single dose of oxytocin (100 mU/kg) injected IV (n=8); (5) melatonin (0.4 mg/kg) plus oxytocin (100 mU/kg) (n=8); and (6) melatonin (4 mg/kg) plus oxytocin (100 mU/kg) injected IV (n=8). Each rat underwent a laparotomy, and uterine myoelectrical signals were recorded. The mean spectrum, averaged over the spectral content of signals in each group, was compared. RESULTS Melatonin induced uterine myoelectrical activity in a dose-dependent manner. Treatment of melatonin after oxytocin suppressed the mean power of the signals. Serum melatonin concentrations were significantly higher in melatonin-treated rats. CONCLUSION Melatonin itself at two different dose levels was found to be equally effective in stimulating the uterine electrical signals, although oxytocin-induced uterine electrical activity was suppressed by melatonin. These findings merit further investigations on the possible beneficial role of melatonin in the treatment of conditions associated with abnormal uterine activity.
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Affiliation(s)
- Yavuz Simşek
- Department of Obstetrics and Gynecology, Kırıkkale University Faculty of Medicine, Kırıkkale, Turkey
| | - Hakan Parlakpınar
- Department of Medical Pharmacology, İnönü University Faculty of Medicine, Malatya, Turkey
| | - Uğur Turhan
- Department of Obstetrics and Gynecology, İnönü University Faculty of Medicine, Malatya, Turkey
| | - Mehmet Emin Tağluk
- Department of Electrical and Electronics, İnönü University Faculty of Engineering, Malatya, Turkey
| | - Burhan Ateş
- Department of Chemistry, İnönü University Faculty of Science, Malatya, Turkey
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Kafkaslı A, Türkçüoğlu I, Turhan U. Maternal, fetal and perinatal characteristics of preeclampsia cases with and without abnormalities in uterine artery Doppler indexes. J Matern Fetal Neonatal Med 2013; 26:936-40. [DOI: 10.3109/14767058.2013.766688] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Gruemmer R, Wimberger P, Kimmig R, Koch Y, Simsek Y, Celik O, Cigremis Y, Akgoz M, Ozerol E, Tanbek K, Turhan U, Ozer A, Lessey BA, Holoch KJ, Franasiak J, Yuan L, Fritz MA, Young SL, Al-Jefout M, Rodgers R, Markham R, Kirsten B, Luscomb G, Tukoshige N, Fraser I. SESSION 54: ENDOMETRIOSIS/ENDOMETRIUM: MOLECULAR AND CELLULAR INSIGHTS 2. Hum Reprod 2012. [DOI: 10.1093/humrep/27.s2.53] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Coskun A, Sinan OF, Turhan U. Analysis of 572 cases of adolescent pregnancy in Z.H. maternity hospital, Ankara, Turkey. J Adolesc 1993; 16:201-3. [PMID: 8376643 DOI: 10.1006/jado.1993.1017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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