Yüksel Onaran

• Fatih University

Background Coasting can reduce the ovarian hyperstimulation syndrome (OHSS) risk in ovulation induction cycles before intracytoplasmic sperm injection (ICSI). This study aimed to investigate the effect of gonadotropin-releasing hormone (GnRH) agonist and GnRH antagonist protocols to controlled ovarian hyperstimulation (COH) cycles with coasting on...

Aim To evaluate the effects of the etonogestrel contraceptive implant (Implanon®) on bone metabolism in lactating women using markers for bone formation and resorption. Study design This single-centre, prospective cohort study was conducted in Turgut Ozal University Medical Faculty Obstetrics and Gynecology Department with healthy lactating women...

This study aimed to report the case of a successful live birth from a woman having oocytes with abnormally large cytoplasmic inclusions. The patient described in this case is a 28 year-old woman with hypogonadotropic hypogonadism (HH) with a history of two previous unsuccessful in vitro fertilization (IVF) attempts offered an antagonist protocol. S...

Jinekoloji pratiğinde endometriozis

Aim: The role of betatrophin in pancreatic β-cell proliferation and development of diabetes has been demonstrated experimentally and within clinical studies. The aim of this study was to measure betatrophin concentration in blood of women with gestational diabetes mellitus (GDM) and to investigate the association of betatrophin with clinical-bioche...

Due to the oxidative stress conditions at birth, newborn needs some immunological and antioxidative protection after birth. The present study was conducted to point out the oxidant and antioxidant activity of human breast milk throughout the lactation. For this purpose, the levels of malondialdehyde, nitric oxide, lactoferrin, superoxide dismutase,...

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 pr...

To investigate whether spontaneous preterm labor (PTL) with intact membranes is associated with changes in maternal serum prohepcidin concentrations. The study consisted of patients with spontaneous PTL with intact membranes (n = 25), a control group of healthy pregnant women between the 24th and 37th gestational weeks (n = 22), and uncomplicated t...

Aims: There is growing consensus in the literature that inflammation plays a central role in the pathophysiology of obesity, Type 2 Diabetes Mellitus (T2DM), Gestational Diabetes Mellitus (GDM) and cardiovascular complications. Measuring the neutrophil-to-lymphocyte ratio (NLR) provides a simple inexpensive method for the assessment of inflammatory...

Objective: To evaluate oxidant and antioxidant activity in patients with hyperemesis gravidarum (HG) by using serum total antioxidant activity (TAO), total free sulfhydryl (-SH), ceruloplasmin and lipid hydroperoxide (LOOH) levels. Materials and methods: In a cross-sectional trial, blood samples were collected from patients with HG (n = 25) and...

To investigate the level of oxidative stress in patients with dysmenorrhea by multiple serum markers including malondialdehyde (MDA), nitrotyrosine (3-NT), deoxyguanosine (8-OHdG) and superoxide dismutase (SOD). Fifty-eight women, aged between 20 and 34, who had had regular menses for at least six previous cycles, were involved. The women were divi...

Bilateral anterior ischemic optic neuropathy is a rare complication of massive haemorrhage and related hypotension and anaemia in young individuals. We report a 34-year-old woman with bilateral non-arteritic ischemic optic neuropathy (NAION) after a massive spontaneous abortion-related haemorrhage who presented with sudden painless visual loss in h...

To evaluate the effectiveness of lidocaine-prilocaine (EMLA 5%) cream application to genital mucosa for reducing pain or discomfort associated with speculum examination in postmenopausal women. A randomized controlled study (Canadian Task Force classification I). A university hospital. One-hundred thirty-four postmenopausal women. The subjects were...

The aim of the present study was to evaluate whether fasting may cause changes in maternal lipid profile, glucose level and ketonuria, and whether it has any adverse effects on fetal Doppler, birthweight, preterm delivery or cesarean section rate. Fifty-six consecutive, healthy women with singleton uncomplicated pregnancies of ≥ 28 week gestation w...

Aim: To compare the motility yields of single or double wash after density gradient centrifugation of the ejaculate and their effects on pregnancy rates in clomiphene citrate induced intrauterine insemination (IUI) cycles. Materials and methods: This prospective randomized controlled study included 341 IUI cycles. Sperm specimens processed by densi...

Hormonal and physical changes during pregnancy are associated with some sleep-related breathing disorders (SRBD) such as snoring and sleep apnea, and SRBD are associated with recurrent episodes of oxyhemoglobin desaturation and increased sympathic activity. We aimed to search the incidence of self-reported snoring and witnessed apnea in the third t...

The aim of this paper was to evaluate correlation between cyst recurrence and some cyst characteristics after sclerotherapy of non-neoplastic ovarian cyst with alcohol-erythromycin combination. Fifty two cases of simple ovarian cysts were subjected to sclerotherapy with alcohol and erythromycin. Two patients were excluded due to suspicious cytologi...

Polycystic ovary syndrome (PCOS) is independently associated with the major cardiovascular risk factors. The aim of this study was to examine the echocardiographic profiles of patients with PCOS using conventional echocardiographic methods and tissue Doppler imaging. For this study, we have registered 48 women with PCOS and 21 healthy control subje...

Ballantyne’s syndrome has originally been described for hydrops fetalis, which is associated with rhesus isoimmunization; however, hydrops fetalis can also occur in association with non-immunological causes, including Ebstein’s anomaly, Galen’s vein aneurysm, fetal arrhythmias, and sacrococcygeal teratoma (SCT). SCT is the most commonly presenting...

ZET Adolesan gebelikler: Maternal ve fetal risk faktörleri Adolesan gebelikler biyolojik immatürite, istenmeyen gebelik, yetersiz perinatal bakım, zayıf maternal bes-lenme ve stres gibi nedenlerden etkilenen olumsuz obstetrik ve neonatal sonuçları olan bir problemdir. Türkiye'deki adolesan gebeliklerin obstetrik ve neonatal sonuçları ile ilgili yap...

Familial Mediterranean Fever (FMF) is an autosomal recessive disease which is characterized by recurrent, self-limiting, short attacks of serositis while abdominal pain is the most common symptom. The underlying clinical and pathological picture is that of acute peritonitis. These abdominal signs are often so striking that they mimic an acute abdom...

To assess the effects of gum chewing on postoperative bowel function after cesarean section. Women who underwent cesarean section were randomized to either a gum-chewing group (n = 74) or a non-gum-chewing group (n = 76). The two groups were compared with respect to the return of bowel activity, postoperative analgesic and antiemetic drug requireme...

Aim: The aim of the study was to evaluate the effect of isoflavones on cardiovascular risk markers including plasma nitrite/nitrate, homocysteine, and lipid levels in Turkish women in the early postmenopausal period. Materials and Methods: Ninety participants between 42 and 59 years of age were randomly assigned to receive twice a day either isofla...

A potentially life-threatening condition, ectopic pregnancy, should be diagnosed correctly. MRI is a very sensitive and specific tool especially for uncertain circumstances although ultrasonography is the first choice. MRI might describe pathologic process by its excellent tissue characterization and resolution. In addition, multiple orthogonal pla...