Publications by authors named "Ethem S Yalvac"

Objective: Although the etiopathogenesis of preeclampsia (PE) is unknown, evidence suggests that it may be associated with increased oxidative stress. Studies have shown that oxidative stress can affect DNA fragments called telomeres. However, the interactions of PE, oxidative stress, and telomere length are not clearly known.

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Objective: This study aimed to define the rare Brucella infection in pregnancy and its effects on immunoglobulins (Ig).

Materials And Methods: This prospective study has conducted Brucella screening using the Rose Bengal test on pregnant and non-pregnant outpatients who did not show any specific Brucella symptoms. The immunoglobulin levels were measured using the enzyme-linked immunosorbent assay.

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Article Synopsis
  • - The study investigates whether reapproximating the rectus abdominis muscle during cesarean sections (CS) affects postoperative pain, muscle strength, and core endurance.
  • - It included 74 women (38 with muscle reapproximation and 36 without), assessing their recovery through strength tests and ultrasounds at two intervals post-surgery.
  • - Results showed that those who had their muscles reapproximated experienced lower muscle separation and greater strength and endurance in the weeks following the surgery, suggesting this technique may enhance recovery and physical fitness for new mothers.
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Objective This study was planned to evaluate obstetricians' practices of umbilical cord clamping, milking, and skin-to-skin contact applications and to determine the related variables. Material and methods A total of 522 obstetricians participated in the study. Participants were reached via the internet and a 15-item questionnaire was applied about umbilical cord clamping, cord milking, and skin-to-skin contact.

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Objective: Delta-like 1 (DLK1) is known to inhibit adipocyte differentiation and nesfatin-1 is a neuropeptide that plays a role in the regulation of nutrition and metabolism. We aimed to assess both the levels of DLK1 and nesfatin-1 in polycystic ovary syndrome (PCOS) and determine the association of DLK1 and nesfatin-1 with metabolic parameters.

Materials And Methods: Forty-four patients with PCOS and 40 healthy women as the control group were included in this study.

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Article Synopsis
  • * JZL184 treatment resulted in improved ovarian health indicators, including increased hormone levels, higher primordial follicle counts, and reduced histopathological damage, while also decreasing oxidative stress and inflammatory markers in the ovaries.
  • * The findings suggest JZL184 could be a promising new treatment option to protect against ovarian damage caused by IRI, acting as an antioxidant and anti-inflammatory agent.
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Objective: To compare the obstetric and neonatal outcomes of patients treated with repeated-dose prostaglandin E2 (dinoprostone) vaginal insert when the first dose fails.

Materials And Methods: This retrospective study included 1.043 pregnant women who received dinoprostone for labor induction between November 2012 and August 2015.

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Objective: The aim was to evaluate the possible effects of anti-angiogenic factors including soluble endoglin (sEng), placental growth factor (Pgf), and soluble fms-like tyrosine kinase 1 (sFlt-1) in both normotensive pregnant patients and preeclampsia (PE) patients.

Material And Methods: The study was carried out at the Departments of Gynecology and Obstetrics and Biochemistry of Yozgat Bozok University Training and Research Hospital. Eighteen women with PE who were pregnant for at least 20 weeks comprised the study group.

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Objective: Telomere length is used as an indicator of biological aging. It is well known that one of the most remarkable risk factors of recurrent pregnancy losses is advanced maternal age. The objective of this study was to investigate the correlation between idiopathic recurrent pregnancy loss and telomere length.

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The objective of this study is to assess the levels of heavy metals (cadmium, lead, antimony, mercury, and arsenic), which are also called endocrine-disrupting chemicals, and trace elements (chromium-III, chromium-VI, zinc, copper, and selenium) vs. monocyte to HDL ratio among pregnant women with gestational diabetes mellitus (GDM). A total of 112 pregnant women (60 with GDM and 52 healthy women) were included in this case-control study.

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Objective: To evaluate the relationship between the maternal pulmonary function test (PFT) and the Apgar score of the newborn, umbilical cord blood (UCB) gas values and the duration of delivery.

Material And Methods: The present study included 41 volunteer nulliparous pregnant women who presented to our obstetrics clinic and PFTs were performed by using spirometry.

Results: A significant positive correlation was observed between 5-minute Apgar scores and maternal FEV1 (forced expiratory volume in the first second) (lt), FEV1%, FVC (lt), FVC% (r=0.

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Article Synopsis
  • The study investigates the connection between depression, sexual dysfunction, and inflammation in women with polycystic ovary syndrome (PCOS), noting how certain chemical signals in the body may impact these issues.
  • Researchers compared 20 fertile and 30 infertile PCOS patients to 30 healthy individuals, finding higher levels of inflammation markers and depression in those with PCOS, especially those with severe depression.
  • While chronic inflammation in PCOS appears to contribute to depression, the study found no significant correlation between these inflammatory markers and sexual function, although body composition factors like waist-to-hip ratio and BMI were identified as risk factors for sexual dysfunction.
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Background: Cervical cancer screening algorithms are increasingly focused on Human Papillomavirus (HPV)-based screening while the accuracy of using abnormal cytological findings to detect dysplastic lesions still remains important. This retrospective study correlated the results of conventional cervical cytology, colposcopy guided biopsy, and cold knife conization (CKC) procedures performed in a tertiary center.

Materials And Methods: Data from 9399 patients who underwent screening with conventional cervical cytology between 2010 and 2019 was obtained from the hospital registry.

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Purpose: Intensive research has been conducted on the effects of toxic and trace elements on pregnancy. Previous studies indicated a possible relationship between placental levels of these elements and first-trimester abortion; however, their effects on the further gestational weeks are not clear. This study aimed to investigate the effect of changes in the levels of placental trace and toxic elements on second-trimester abortion.

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Ovarian ischemia is a gynecological emergency case that occurs as a result of ovarian torsion. Oxidative stress plays a central role in the development of ischemia/reperfusion (IR) injuries. Lycopene (LYC) is a lipophilic, natural carotenoid well known for its antioxidant properties.

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Objective: Preeclampsia (PE) is a dangerous complication of pregnancy and still a major cause of maternal-fetal morbidity and mortality. Its etiology remains largely unknown, but researchers have suggested oxidative stress-mediated inflammation for the same. The purpose of this study is to investigate the relationship between oxidative stress and PE as well as the usability of oxidative stress indicators such as serum ischemia-modified albumin (IMA) levels and thiol/disulfide balance in the prediction of PE.

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Purpose: To compare the rates obtained from hematological parameters in cases of late-onset idiopathic fetal growth restriction (FGR) with healthy pregnancies and to evaluate the effect on neonatal outcomes.

Methods: The study group consisted of 63 pregnant women with late-onset idiopathic FGR and the control group consisted of 91 healthy pregnant women. The determined rates were calculated from the control hemograms of patients at 28 weeks.

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Objective: The aim of this study was to assess the diagnostic values of new biochemical markers that may be an alternative to the oral glucose tolerance test (OGTT) and determine the differences in these markers among three groups of women with varying degrees of glucose homeostasis dysregulation.

Material And Methods: This was a prospective study. All women were screened with 50 gram (g) oral glucose and a 100 g OGTT for gestational diabetes mellitus (GDM).

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This study aimed to determine the relationship between the metabolic and endocrinological pathologies in polycystic ovary syndrome (PCOS) and the levels of arsenic, chromium, cadmium, lead, mercury, antimony, zinc, and copper to evaluate the relationship of these toxic metals with inflammatory/oxidative parameters. This study included a total of 154 patients (84 with PCOS, 70 healthy volunteers). Metabolic and endocrine parameters and arsenic, chromium, cadmium, lead, mercury, antimony, zinc, and copper serum levels of the patients were compared between the groups.

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To compare short-term perinatal outcomes in preterm infants with intrauterine growth restriction (IUGR) in those with absent or reversed end-diastolic umbilical artery blood flow (AREDF) to those with normal end-diastolic umbilical artery blood flow (NEDF). This study included preterm births (28-33 gestational weeks) with IUGR with AREDF ( = 86) or NEDF ( = 27). There were lower mean gestational weeks, birth weights, and a higher ratio of corticosteroid application in the AREDF group ( < 0.

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Objective: The first objective of this study was to investigate the relationship between gestational diabetes mellitus (GDM) and gestational weight gain (WG), waist circumference (WC), prepregnancy, and gestational body mass index (BMI). The second aim of our study was to assess the ability of WG, WC, prepregnancy, and gestational BMI with special reference to their cut-off points on predicting the risk of GDM in pregnant women in Turkey.

Materials And Methods: A total of 261 women who underwent screening for GDM with the 75-g glucose tolerance test (GTT) between 24 and 28 gestational weeks were included.

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