Publications by authors named "Benian A"

Background: To evaluate the eligibility and feasibility of the "Voice Modules in Narcology" (VMIN) program.

Material And Methods: We developed a computer program to screen for risky alcohol or drug use, utilizing an interactive voice assistant as a motivational component. Given the low detection of such risks during population health examinations and medical check-ups, this program could allow the primary healthcare sector to expand screening coverage for risky alcohol and drug use without additional medical personnel.

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Introduction: In preeclampsia (PE), human decidua mesenchymal stromal cells (hDMSCs) are exposed to abnormally high levels of oxidative stress and inflammatory factors circulating in the maternal blood. MicroRNAs (miRNAs) have been shown to have a significant impact on the differentiation, maturation and function of mesenchymal stromal cells (MSCs). Our aim in the present study is firstly to investigate differentially expressed miRNA levels to be used as a biomarker in the early detection of PE and secondly to investigate whether those differentially expressed miRNAs in hDMSCs have an effect on the pathogenesis of PE.

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Objectives: Intercellular adhesion molecule-1 (ICAM-1) plays an important role in endothelial function. Hyperglycemia-induced impaired redox status is 1 of the well-known pathophysiologic characteristics of gestational diabetes mellitus (GDM), and it plays a crucial role in the causes of disease. Our aim was to clarify any possible relationship between the ICAM-1 Lys469Glu polymorphism and systemic redox status in women with and without GDM.

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Preeclampsia (PE) is a pregnancy specific disease soon after 20 weeks of gestation where major symptoms are hypertension and proteinuria. The underlying pathology is believed to be abnormal placentation. Epigenetic and genetic factors have significant roles in abnormal placental development.

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Early pregnancy loss (EPL), also termed early miscarriage, is determined as the unintentional expulsion of an embryo or fetus prior to the 12th week of gestation. EPL frequency is ~15% in pregnancies. Fetal development and growth is associate with placental function and vessel development; therefore, the placental genome would represent a useful miscarriage model for (epi)genetic and genomic studies.

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Preeclampsia (PE) is one of the leading causes of maternal and fetal morbidity and mortality, occurring usually in the second half of pregnancy and affecting approximately 5-8% of pregnancies in the world. miRNAs play critical role in the regulation of placental development processes. We aimed to determine specific novel miRNAs for early diagnosis of preeclampsia which is one of the most dangerous pregnancy diseases.

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Objectives: Our aim was to determine the predictive values of serum levels of several growth factors in ovarian cancer, including soluble c-erbB-2 oncoprotein, insulin-like growth factor-1 (IGF-1) and vascular endothelial growth factor (VEGF).

Background: Previous studies have shown that growth factors play an important role in carcinogenesis.

Methods: Two groups were established.

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The aim of this study was to use proteomic and transcriptomic approaches to examine differences in protein and gene expression in maternal plasma between normal and preeclamptic pregnancies. Preeclampsia and control groups were compared with respect to the expression of CD34 and CD133 genes by quantitative polymerase chain reaction (qPCR) and heat shock protein (Hsp)27 and 70 by western blotting in blood samples from the pregnant women. Blood samples were obtained at gestational week 12-14 from 65 healthy pregnant women.

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Recent developments in molecular genetics improved our knowledge on fetal genome and physiology. Novel scientific innovations in prenatal diagnosis have accelerated in the last decade changing our vision immensely. Data obtained from fetal genomic studies brought new insights to fetal medicine and by the advances in fetal DNA and RNA sequencing technology novel treatment strategies has evolved.

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Aim: Aim of the study was to investigate the need to perform the adrenocorticotropic hormone (ACTH) stimulation test by recognizing the importance of a second look at basal serum 17-alpha hydroxyprogesterone (17-OHP) levels and calculating new serum 17-OHP cut-off level.

Methods: A total of 142 patients who had hyperandrogenism symptoms and had basal serum 17-OHP levels of higher than 1.3 ng/mL were scheduled to have an ACTH stimulation test performed.

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Aim: The aim of this paper was to investigate maternal and cord blood apelin, resistin and visfatin concentrations in pregnant women with and without gestational diabetes mellitus (GDM).

Methods: This case-control study was conducted on 24 women with GDM and 21 women without GDM. Maternal plasma and cord blood apelin, resistin and visfatin levels were measured with ELISA.

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Objective: To evaluate the possible effect of methotrexate (MTX) on rat ovaries by measuring serum antimullerian hormone (AMH), the novel marker of the ovarian reserve.

Methods: Pretreatment serum AMH levels were measured in 15 Wistar albino rats. MTX was given in 1 mg/kg dose in days 1, 3, 5, and 7.

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Aim: Quantitative changes of cell-free fetal DNA in maternal plasma as an indicator for impending pre-eclampsia was reported in different studies. Cell-free fetal nucleic acids can be detected in maternal circulation during pregnancy. Our aim was to determine the higher rate of fetal DNA levels in maternal blood in pre-eclampsia compared to normal pregnancies and the clinical use of real-time polymerase chain reaction (PCR) in the Turkish population as a marker.

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Objective: Our aim was to determine the effects of maternal serum and amniotic fluid levels of cluster of differentiation 146 (CD-146), transforming growth factor (TGF)-β1, interleukin (IL)-12, IL-18, and interferon (IFN)-γ on intrauterine growth restriction and preterm labor.

Methods: In this retrospective cohort study, we included pregnant women who underwent amniocentesis at Istanbul University Cerrahpasa Medical School. Women were followed up to labor.

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Preeclampsia continues to be a mortal disease of pregnant women throughout the world. Recently, geneticists, allied with obstetricians, have opened new frontiers. MicroRNAs (miRNAs) are members of a class of small, noncoding RNA molecules.

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Aims: To clarify the levels of protein oxidation markers such as protein carbonyl (PCO), protein hydroperoxides (P-OOH), advanced oxidation protein products (AOPP) and nitrotyrosine (NT), as well as antioxidative enzymes such as paraoxonase (PON-1) in women with and without gestational diabetes mellitus (GDM).

Methods: The study was conducted on 23 women with GDM and 22 women without GDM. The levels of the P-OOH, AOPP, and PON-1 were determined by colorimetric methods; whereas NT and PCO levels were measured by ELISA.

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Background: Torsion of the term gravid uterus is a rare, potentially serious, unexpected obstetric pathology and is almost always diagnosed at cesarean section. We report a case of deliberate posterior low transverse segment hysterotomy in irreducible uterine torsion at 41 weeks' gestation,

Case: A 29-year-old nullipara with a 15-cm uterine fibroid was admitted at 41 weeks' gestation with regular uterine contractions. Cesarean delivery was carried out for obstructed labor.

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Aim: The aim of this study is to determine the predictive values of oxidative stress markers and antioxidants in the development of preeclampsia between 10-14 and also at 20-24 weeks of gestation, after the completion of vascular transformation.

Materials And Methods: Levels of oxidative stress parameters such as malondialdehyde (MDA), lipidhydroperoxide (LHP) and prostaglandin F(2α) (PGF(2α)), oxidized LDL (oxLDL), and antioxidant status parameters such as paraoxonase 1 (PON1), superoxide dismutase (SOD) and total antioxidant capacity (TAC) levels were measured and compared in 21 preeclamptic and 24 healthy pregnant women.

Results: In preeclamptic women, both between 10-14 and also at 20-24 weeks of gestation the levels of oxLDL, MDA and PGF(2α) were significantly higher (P < 0.

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Background: Total or cellular fibronectin (FN) determinations have been used to differentiate between normal and preeclamptic pregnants. The purpose of this study was to examine the relationship between maternal serum FN levels and the extracellular matrix molecule contents of placental tissue, such as FN, hyaluronic acid (HA) and hydroxyproline (HP) levels.

Material And Methods: We obtained maternal blood samples and placental tissue samples from healthy (n = 17, controls) and preeclamptic pregnants (n = 29).

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Objective: To investigate the placental CD34, CD44, and leukemia inhibitory factor (LIF) levels in normotensive and pre-eclamptic women.

Method: The study population consisted of 21 women with pre-eclampsia. Twenty normotensive pregnant women served as controls and were matched to pre-eclamptic patients by gestational age at delivery.

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The aim of the study was to examine the expression of adhesion molecules VCAM-1 and ICAM-3 in placental tissue samples and placental bed (maternal decidual tissue) biopsies of pregnancies complicated by pre-eclampsia (PE) and fetal growth restriction (FGR), and to determine whether PE and FGR are associated with an increase in placental apoptosis. We studied placentas and placental bed samples of 49 third trimester pregnancies complicated by FGR (26 with associated PE, 23 without PE) and 25 normotensive healthy pregnant women. Placental apoptosis was assessed by the TUNEL method.

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