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Dive into the research topics where Nilgün Öztürk Turhan is active.

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Featured researches published by Nilgün Öztürk Turhan.


Journal of Maternal-fetal & Neonatal Medicine | 2014

Hepcidin, iron status, and inflammation variables among healthy pregnant women in the Turkish population

Serap Simavli; Aysel Uysal Derbent; Sema Uysal; Nilgün Öztürk Turhan

Abstract Purpose: To investigate hepcidin levels in each trimester and their association with other haematological variables and inflammation markers during normal pregnancy among low-risk pregnant women in rural Turkey. Method: The series comprised 103 healthy Turkish primigravida women with a normal pregnancy. Blood samples were obtained at 11–14, 24–28 and 30–34 weeks of gestation. Haemoglobin, hematocrit, red cell indices, white blood cell count, platelet count, iron status indicators (plasma iron, transferrin, ferritin levels and iron binding capacity), serum hepcidin, interleukin-6 and C-reactive protein levels were analysed. The proportions were compared using Pearson’s χ2 test or Friedman’s test. Results: The mean serum hepcidin concentrations at 11–14, 24–28 and 30–34 weeks of gestation were as follows: 7.8 ± 3.4 ng/mL, 8.6 ± 3.1 ng/mL and 7.3 ± 3.0 ng/mL, respectively. The mean serum ferritin concentrations with median values at each trimester were 14.2 (11.5), 9.5 (8.8) and 11.2 (9.3), respectively. The mean serum CRP values at each trimester were 5.1 (4.0), 5.5 (4.6) and 6.0 (5.5), respectively. The serum hepcidin levels were not related to iron status or the haemoglobin, IL-6 or C-reactive protein levels. Conclusions: There was no association between serum hepcidin and serum ferritin, IL-6 or CRP concentrations in each trimester among low-risk pregnant women.


Journal of Assisted Reproduction and Genetics | 2015

Changes of sFas and sFasL, oxidative stress markers in serum and follicular fluid of patients undergoing IVF

Aslıhan Pekel; Aymelek Gönenç; Nilgün Öztürk Turhan; Hasan Kafali

PurposeThe Fas-Fas Ligand interaction is one of the essential events for the induction of apoptosis whereas the exact role of their soluble forms in the reproductive system is still not fully understood. Also oxidative stress in the pathogenesis of infertility causing diseases in women and has been suggested as one of the important factors that negatively affect IVF outcome. In this study, our aim was to evaluate serum and follicular fluid levels of soluble Fas soluble Fas Ligand, malondialdehyde, superoxide dismutase and total antioxidant capacity in patients undergoing IVF and compared with controls.MethodsThis study included 109 patients. Patients were classified as unexplained infertility (N = 31), PCOS (N = 19), tubal factor (N = 9) and endometriosis (N = 10) and compared with male factor infertility (N = 40) that was the control group. sFas and sFasL levels were measured by immunoassay method. MDA, SOD and TAC levels were measured by colorimetric method.ResultsPatients with unexplained infertility, PCOS and tubal factor had significantly lower sFas levels compared with their controls (respectively, p < 0.01, p < 0.05, p < 0.05). However, SOD activity in unexplained infertility, PCOS and endometriosisgroupswere significantly higher than control group (p < 0.01).Decreased follicular fluid TAC levels were found in all patient groups compared with controls (respectively, p < 0.01, p < 0.05, p < 0.01, p < 0.01).Patients with tubal factor had significantly higher serum sFasL (p < 0.05), but lower follicular fluid sFasL levels (p < 0.05) compared with unexplained infertility. Tubal factor and endometriosis groups had lowerfollicular fluid TAC levels compared to unexplained infertility and PCOSgroups (p < 0.01).Conclusion(s)In this study, serum and follicular fluid sFas levels were decreased and antioxidant activity was impaired in infertility, possibly implying increased apoptosis. Especially in unexplained infertility group changes in this parametres more remarkable.


Journal of Clinical Medicine Research | 2015

Serum Copeptin, Pentraxin 3, Anti-Mullerian Hormone Levels With Echocardiography and Carotid Artery Intima-Media Thickness in Adolescents With Polycystic Ovary Syndrome

Mehmet Deveer; Rüya Deveer; Özcan Başaran; Ummuhani Ozel Turkcu; Eren Akbaba; Nesat Cullu; Nilgün Öztürk Turhan; Mert Küçük; Burcu Kasap

Background The aim of the study was to investigate the presence of possible markers in the prediction of polycystic ovary syndrome (PCOS)-related metabolic alterations and cardiovascular events in adolescent PCOS cases and also to investigate the applicability of anti-Mullerian hormone (AMH) levels for the diagnosis of PCOS. Methods In this cross-sectional study, a total of 75 non-obese women (adolescent PCOS group, n = 25; adult PCOS group, n = 25; control group, n = 25) were included. Measurements of copeptin, pentraxin 3 (PTX3), and AMH serum levels were performed. Results Serum copeptin, PTX3 and echocardiographic indices were not significantly different in PCOS subjects and they did not have higher common carotid artery intima-media thickness (CIMT) measurement. AMH levels were significantly higher in PCOS patients. There was a positive correlation between AMH and mean ovarian volume (r = 0.58, P < 0.001) and between AMH and total testosterone level (r = 0.63, P < 0.001). In order to predict a threshold value for the diagnosis of PCOS by using AMH, the receiver operating characteristic (ROC) method was used. Area under the curve was 0.820 and cut-off point was 6.66 ng/mL for AMH with a sensitivity of 62% and specificity of 76%. Conclusions Possible markers for PCOS-related metabolic alterations may not present in the adolescent years. Serum AMH may be useful as a diagnostic test for adolescents.


Hypertension in Pregnancy | 2015

Is the level of maternal serum prohepcidin associated with preeclampsia

Candan Iltemir Duvan; Serap Simavli; Esra Aktepe Keskin; Yuksel Onaran; Nilgün Öztürk Turhan; Cemile Koca

Objective: The objective of the study was to compare pro-hepcidin, hemoglobin (Hb) concentration, hematocrit (Hct), C-reactive protein (CRP), IL-6 and iron status parameters in preeclamptic (PE) and healthy pregnant women, and to examine the relationship between serum pro-hepcidin levels and iron parameters of preeclampsia (PE). Methods: In a prospective controlled study, we collected serum from women with normal pregnancy (n = 37) and from women with PE (n = 30) at the Department of Obstetrics and Gynecology at Turgut Ozal University between February 2010 and January 2013. Pro-hepcidin, hemoglobin (Hb) concentration, hematocrit (Hct), CRP, IL-6 and iron status parameters were measured in all patients and compared between groups. Results: Levels of serum prohepcidin in PE and control groups were similar and amount 69.4 ± 19.7 and 71.9 ± 22.1 ng/ml, respectively. The difference was not statistically significant (p: 0.694). On the other hand, the study group had a statistically lower iron binding capacity (IBC), total iron binding capacity, transferin, total protein, albumin levels (p < 0.05). No significant differences were found among prohepcidin, Hb concentration, Hct, iron, ferritin, IL-6, urea and creatine in both the groups. Conclusion: In pregnancies complicated by PE with normal values of hemoglobin and hematocrit, serum prohepcidin concentrations are similar to those observed in healthy pregnant women. The analysis revealed no significant correlations between prohepcidin level and serum iron, serum ferritin or transferrin in the PE.


European Journal of Obstetrics & Gynecology and Reproductive Biology | 2014

Does vitamin E prevent tubal damage caused by smoking? A light microscopy and animal study

Müzeyyen Duran; Emin Ustunyurt; Aydin Kosus; Nermin Kosus; Nilgün Öztürk Turhan; Deniz Hizli; Gulce Naz Sarac; Deniz Erdogan

OBJECTIVE To assess the histomorphological effects of smoking on the cilia of fallopian tubes in mice and the effect of vitamin E on the negative effects of smoke. STUDY DESIGN Eighteen 12-14 week-old Swiss albino type female mice were randomly divided into three groups, each consisting of six mice: Group A: control group; Group B: mice exposed to cigarette smoke; Group C: mice exposed to cigarette smoke together with vitamin E. Groups B and C were exposed to cigarette smoke for 10 weeks. After 10 weeks, tubal excision was performed in all animals. Histopathologic examination of excised tubal tissue was conducted under light microscopy. RESULTS The number of cilia was significantly lower in Group B. Although not statistically significant, the median number of cilia in Group C was measured to be higher than in Group B but lower than in Group A. CONCLUSION Based on the results, it can be concluded that smoking decreases tubal cilia numbers. Supplementation by vitamin E may treat or at least help to slow down the decrease in number of cilia caused by smoking; therefore it could be used therapeutically in the treatment of smoking-related tubal damage.


Journal of Maternal-fetal & Neonatal Medicine | 2015

Do the first, second and third trimester maternal serum hepcidin concentrations clarify obstetric complications?

Serap Simavli; Aysel Uysal Derbent; Esra Aktepe Keskin; Gumus; Sema Uysal; Nilgün Öztürk Turhan

Abstract Objective: To evaluate whether first, second, and third-trimester maternal serum hepcidin levels are different in pregnancies with and without adverse pregnancy outcomes (APO). Methods: A 165 nullipar pregnant women were included in this prospective cohort study. Serum hepcidin, ferritin, IL-6, C-reactive protein (CRP) and Hb values were measured at 11–14, 24–28, and 30–34 weeks of gestation. The relation between these parameters and APO and neonatal outcomes were investigated. Preterm delivery, intrauterine growth restriction, pre-eclampsia, gestational hypertension and placental abruption were determined as adverse pregnancy outcomes. Results: The risk of APO was three times higher in women with high IL-6 levels in the second trimester. High hepcidin levels in the second trimester were associated with a 1.6 times increased risk of APO. Newborns of women with high IL-6 levels in the third trimester had a 1.6-fold increased risk of neonatal complications. High ferritin levels in the third trimester were associated with minimally increased risk of neonatal complications. Conclusions: Mean serum hepcidin levels were similar in all pregnant women, however, elevated second trimester serum hepcidin and IL-6 levels were associated with a higher risk of APO and high third trimester hepcidin, ferritin and IL-6 levels were associated with higher risk of neonatal complications.


Journal of Maternal-fetal & Neonatal Medicine | 2012

Can serum ferritin, vitamin B12 and folic acid levels affect serum screening tests during pregnancy?

Nermin Köşüş; Aydın Köşüş; Deniz Hizli; Emel Ü. Bitirgen; Nilgün Öztürk Turhan

Objective: To examine the relation of serum folate, vitamin B12 and ferritin levels to 1st and 2nd trimester serum screening markers. Methods: Fetal crown-rump length (CRL), nuchal translucency (NT), and first and second trimester serum screening tests of 228 pregnant women were obtained. In all cases, serum vitamin B12, folic acid and ferritin levels were analyzed during the 11–14 week period. Levels below <15 µg/L, 3 ng/mL and 211 pg/mL were accepted as nutrient deficiency for serum ferritin, folic acid and vitamin B12, respectively. Results of serum screening markers of women below and above these values were compared with each other. Results: Comparison of groups with ferritin levels <15 and >15 µg/L for 1st and 2nd trimester serum screening parameters revealed significant differences between groups in terms of pregnancy associated plasma protein-A (PAPP-A), free β-human chorionic gonadotropin (fb-hCG), AFP and hCG. Comparison of women with low versus normal B12 levels revealed significant differences in terms of NT, PAPP-A and fb-hCG. Conclusion: Although sufficient, number of cases is limited in this study so results cannot be generalized to all population. It could be advised that in addition to folic acid supplementation, deficiencies of ferritin and B12 must be corrected in patients considering pregnancy or early 1st trimester pregnant women to obtain more accurate serum screening results.


Saudi Medical Journal | 2016

Adequate iodine levels in healthy pregnant women. A cross-sectional survey of dietary intake in Turkey

Burcu Kasap; Gulhan Akbaba; Emine Neşe Yeniçeri; Melike Nur Akın; Eren Akbaba; Gokalp Oner; Nilgün Öztürk Turhan; Mehmet Emin Duru

Objectives: To assess current iodine levels and related factors among healthy pregnant women. Methods: In this cross-sectional, hospital-based study, healthy pregnant women (n=135) were scanned for thyroid volume, provided urine samples for urinary iodine concentration and completed a questionnaire including sociodemographic characteristics and dietary habits targeted for iodine consumption at the Department of Obstetrics and Gynecology, School of Medicine, Muğla Sıtkı Koçman University, Muğla, Turkey, between August 2014 and February 2015. Sociodemographic data were analyzed by simple descriptive statistics. Results: Median urinary iodine concentration was 222.0 µg/L, indicating adequate iodine intake during pregnancy. According to World Health Organization (WHO) criteria, 28.1% of subjects had iodine deficiency, 34.1% had adequate iodine intake, 34.8% had more than adequate iodine intake, and 3.0% had excessive iodine intake during pregnancy. Education level, higher monthly income, current employment, consuming iodized salt, and adding salt to food during, or after cooking were associated with higher urinary iodine concentration. Conclusion: Iodine status of healthy pregnant women was adequate, although the percentage of women with more than adequate iodine intake was higher than the reported literature.


Journal of Maternal-fetal & Neonatal Medicine | 2014

Relation between serum PAPP-A level and umbilical cord thickness during first trimester of pregnancy.

Müzeyyen Duran; Aydin Kosus; Nermin Kosus; Nilgün Öztürk Turhan

Abstract Purpose: To evaluate the relation between umbilical cord diameter versus pregnancy associated plasma protein-A (PAPP-A) level in first trimester women. Method: Cord diameter were measured and patients were divided into two groups according to frequency distribution analysis as below or above 3.7 mm for free loop diameter (FCD) and below or above 3.4 mm for cord measurement at umbilicus (ACD). Groups were compared with each other. Results: Strong correlations were found between ACD versus PAPP-A. Conclusion: By using strong correlation between ACD versus PAPP-A, it may be possible to reduce unnecessary amniocentesis due to false positive screening results.


International Journal of Surgery Case Reports | 2014

Totally inverted cervix due to a huge prolapsed cervical myoma simulating chronic non-puerperal uterine inversion.

Nilgün Öztürk Turhan; Serap Simavli; Ikbal Kaygusuz; Burcu Kasap

INTRODUCTION Inversion of the uterus is an extremely rare complication of the non-puerperal period and is commonly caused by benign submucous, especially fundal, leiomyomas. A case of a totally inverted cervix due to a prolapsed huge cervical leiomyoma mimicking chronic non-puerperal uterine inversion in a perimenopausal woman is presented. PRESENTATION OF CASE A 52-year-old perimenopausal woman was admitted to our clinic with an ulcerated, necrotic, infected and swollen prolapsed mass. Gynecologic history revealed that she was advised myomectomy because of her cervical myoma 2 years ago but she refused to have an operation as she believed that her positive thoughts would shrink the myoma. Presumed diagnosis before surgery was chronic non-puerperal uterine inversion. An intraoperative diagnosis was totally inverted cervix due to a huge cervical leiomyoma. Vaginal hysterectomy without adnexectomy, was performed. CONCLUSION This is the first case in the literature which a totally inverted cervix due to a prolapsed huge cervical leiomyoma. Cervical fibroids can grow in perimenopausal period and in extremely rare cases can cause total cervical inversion.

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Aydin Kosus

Turgut Özal University

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Nermin Kosus

Turgut Özal University

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Deniz Hizli

Turgut Özal University

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