Publications by authors named "Nur Dokuzeylul Gungor"

Introduction: The study evaluates the performance of large language model (LLM) versions of ChatGPT-ChatGPT-3.5, ChatGPT-4, and ChatGPT-Omni-in addressing inquiries related to the diagnosis and treatment of gynecological cancers, including ovarian, endometrial, and cervical cancers.

Methods: A total of 804 questions were equally distributed across four categories: True/False, Multiple-Choice, Open-Ended, and Case-scenario, with each question type representing varying levels of complexity.

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Objective: To review the outcomes of in vitro maturation (IVM) and in vitro fertilization (IVF) in women with empty follicle syndrome (EFS). The study evaluated the genetic underpinnings of EFS by analyzing mutations.

Materials And Methods: This retrospective case series involving 17 women with EFS over at least 2 IVF cycles was conducted.

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Objective: The aim of this study was to investigate the developmental potential of immature oocytes and evaluate whether unstimulated in vitro maturation (IVM) could serve as a treatment option for women with oocyte maturation abnormalities (OMAs).

Material And Methods: This cohort study was conducted between September 2019 and December 2022, and included women who underwent unstimulated, non-human chorionic gonadotropin (hCG) priming IVM. Oocytes were incubated with IVM medium for 26-48 hours and evaluated to compare their maturation profiles with the immature oocytes retrieved from the same patients in their previous in vitro fertilization cycles.

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Article Synopsis
  • Non-obstructive azoospermia (NOA) is a prevalent and complex issue with varied treatment options and no definitive guidelines, leading to differing management practices internationally.
  • A comprehensive survey with 336 responses from specialists in 49 countries explored current medical and surgical strategies for NOA, analyzing results against existing guidelines and offering expert recommendations.
  • Key findings included diverse approaches to hormonal therapy, significant variation in sperm retrieval success rates, and differing protocols around varicocele repair and follicle-stimulating hormone cutoff levels for sperm retrieval.
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Article Synopsis
  • * Conducted from July to September 2022, a questionnaire gathered responses from 367 doctors in 49 countries, focusing on how they diagnose NOA through methods like hormone tests and genetic analyses.
  • * The survey identified that while many practices align with guidelines, significant differences in approaches were found, underscoring the need for standardized, evidence-based international guidelines for NOA evaluation.
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Research Question: What are the embryonic profiles and oocyte maturation dynamics in patients with tubulin beta eight class VIII (TUBB8) mutations leading to oocyte maturation abnormalities (OMAS), and are pregnancies possible in this population?

Design: A prospective cohort study was undertaken in a private fertility clinic between January 2019 and December 2022. Whole-exome genomic studies (WES) were performed to detect mutation types. In-vitro maturation (IVM) was compared in 18 subjects: nine with TUBB8 mutations, and nine without TUBB8 mutations to act as the control group.

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Article Synopsis
  • The study investigates global practices and challenges in using sperm DNA fragmentation (SDF) assays, which can affect male reproductive potential, as outlined in the latest WHO manual.
  • A survey of 436 reproductive clinicians revealed that the most popular SDF assay is TUNEL, with a significant influence from availability on their choices.
  • Clinicians see the value of SDF testing in understanding infertility but face barriers like insufficient professional guidelines and a lack of accepted reference values for interpreting SDF results.
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Article Synopsis
  • The study investigates global practices for managing sperm DNA fragmentation (SDF) in infertile men, highlighting its impact on fertility and assisted reproductive technology (ART).
  • A survey collecting data from 436 reproductive experts across 55 countries revealed a common recommendation for lifestyle changes and antioxidants, with varying durations for treatment and differing management approaches for specific infertility cases.
  • The findings indicate a lack of uniformity in practices, emphasizing the need for standardized guidelines and expert consensus for treating men with elevated SDF.
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Article Synopsis
  • The study explores global practices for sperm DNA fragmentation (SDF) testing in infertile men, following its inclusion in the WHO laboratory manual.
  • A survey conducted among 436 infertility clinicians across 55 countries reveals varied testing practices, with many testing SDF in cases of unexplained infertility, recurrent pregnancy loss, and among smokers.
  • The findings highlight the need for clearer professional guidelines on SDF testing, given the diversity in current practices and the potential benefits for certain patient populations.
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Objective: To reveal whether hysteroscopic removal of the International Federation of Gynecology and Obstetrics (FIGO) types 0 and 1 fibroids makes any changes in the expression of homeobox genes (HOXA10, HOXA11), leukemia inhibitory factor, and nuclear factor-kappa B (NF-kB).

Design: A case-control study.

Setting: University-based in vitro fertilisation center.

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Myometrium cells are an important reproductive niche in which cyclic mechanical forces of a pico-newton range are produced continuously at millisecond and second intervals. Overproduction and/or underproduction of micro-forces, due to point or epigenetic mutation, aberrant methylation, and abnormal response to hypoxia, may lead to the transformation of fibroid stem cells into fibroid-initiating stem cells. Fibroids are tumors with a high modulus of stiffness disturbing the critical homeostasis of the myometrium and they may cause unfavorable and strong mechanical forces.

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Objectives: Despite the development of diagnosis and treatment methods, the psychological effects of infertility on women were not adequately addressed. This study investigated the effect of male and female factor infertility on women's anxiety, depression, self-esteem, quality of life, and sexual function parameters.

Methods: In this prospective, cross-sectional study, 480 women [n = 234, with male factor infertility (MFI) (MFI group) and n = 246, with female factor infertility (FFI) (FFI group)], who could not conceive despite unprotected intercourse for 1 year, and 242 fertile healthy women (control group) who had children within the last 1 year were included.

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Objective: To investigate the changes in serum ghrelin and leptin levels in patients with clomiphene-resistant polycystic ovary syndrome (PCOS).

Materials And Methods: Thirty-five patients who could not achieve ovulation or pregnancy despite using 150 mg/day of clomiphene citrate (CC) participated in the study. Thirty-five patients who were compatible with the study group in terms of age and body mass index (BMI) but did not have clinical and laboratory findings of PCOS constituted the control group.

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Objective: The aim of this study was to compare the complication rates of oocyte pick-up (OPU) procedures via transvaginal ultrasonography in patients with different levels of ovarian reserve.

Methods: In total, 789 patients who underwent OPU procedures for in vitro fertilization (IVF) were included in the study.

Results: Individuals with normal ovarian reserve had a 2.

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Objective: Monozygotic twin (MZT) pregnancies increase the risk of maternal and infant mortality and include many complications. The present study describes our assisted reproductive technology (ART) procedures from the viewpoint of perinatal outcomes in MZT pregnancies.

Methods: In this retrospective clinical cross-sectional study, 1159 in vitro fertilization (IVF) cycles performed between October 2014 and December 2019 were reviewed and perinatal outcomes and general clinical conditions analyzed.

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A small proportion of infertile women experience repeated oocyte maturation abnormalities (OMAS). OMAS include degenerated and dysmorphic oocytes, empty follicle syndrome, oocyte maturation arrest (OMA), resistant ovary syndrome and maturation defects due to primary ovarian insufficiency. Genetic factors play an important role in OMAS but still need specifications.

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Objective: To investigate the impact of laparoscopic ovarian drilling (LOD) on the expression of endometrial NFκB p65 (Rel A) in women with clomiphene-resistant polycystic ovary syndrome (PCOS).

Materials And Methods: The study group comprised 25 normal-weight women with PCOS undergoing LOD and 14 control women without PCOS. Endometrial NF-κB p65 levels evaluated before and after LOD following immunohistochemical staining.

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Objective: Our aim in this study is to evaluate the efficacy of HbA1c in screening for GDM during the first trimester of pregnancy.

Materials And Methods: In this retrospective cohort study, we evaluated the first trimester HbA1c (ft-HbA1c) levels of 195 pregnant women who attended our university hospital's obstetrics clinic. Blood samples were drawn from patients during 11-14 weeks of gestation.

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Objective: This study aims to determine the effects of early and late onset estrogen supplementation on the immature oocyte retrieval, fertilization and clinical pregnancy rates in follicle stimulating hormone (FSH) and human chorionic hormone (hCG) primed in vitro maturation (IVM) cycles of the patients with polycystic ovary syndrome (PCOS).

Methods: This is a retrospective analysis of 161 patients with PCOS who underwent FSH and hCG primed IVM. Group 1 included 120 patients who received early onset estrogen supplementation while group 2 consisted of 41 patients who had late onset estrogen supplementation in primed IVM cycles.

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Article Synopsis
  • The study examines the link between pruritic urticarial papules and plaques of pregnancy, particularly in women undergoing in vitro fertilization (IVF) compared to those with spontaneous pregnancies.
  • It found that these skin conditions were more prevalent in IVF pregnancies, with a notable association between multiple pregnancies and longer progesterone treatment duration in the IVF group.
  • The research faced limitations due to its retrospective nature and being conducted at a single center, but it suggests that increased progesterone levels might contribute to the development of these pregnancy-related skin issues.
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Objective: To investigate whether prior endometrium spectroscopy predicts the success of embryo transfer in patients with recurrent implantation failure (RIF).

Materials And Methods: Twenty women with RIF who were scheduled for IVF-ET and six fertile women were included the study. All women with RIF and fertile controls underwent endometrium spectroscopy before embryo transfer.

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Objective: To determine and compare metabolite content using magnetic resonance spectroscopy (MRS) of growing follicles in patients with polycystic ovary syndrome (PCOS) receiving recombinant follicle stimulating hormone (rFSH), clomiphene citrate (CC) or aromatase inhibitor (AI) for ovarian stimulation.

Material And Methods: Thirty patients diagnosed with PCOS and infertility and scheduled for ovarian stimulation were divided by therapy, rFSH/CC/AI, into three equal groups. Five fertile cases were designated as the control group.

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Objective: To investigate the relationship between thyroid autoimmunity and early pregnancy serum β-HCG levels in intracytoplasmic sperm injection patients.

Methods: The study subjects were 85 female euthyroid patients undergoing intracytoplasmic sperm injection embryo transfer cycles with GnRH antagonist treatment. Patients who received transfer of more than one embryo, those with serum TSH levels of greater than 2.

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Although physiologic amount of inflammation is necessary for successful implantation, pathological inflammation inhibits the expression of receptivity molecules and genes. Because hydrosalpinges is an inflammatory disease, adverse effects of hydrosalpinges on implantation may be in part mediated by disturbed endometrial expression of nuclear factor-kappa B (NF-κB), a dimer implicated in inflammation. We examined the expression of NF-κB p65 (Rel A) during the window of implantation in the endometrium of infertile women (n = 14) with uni or bilateral hydrosalpinges prior to and following salpingectomy and of fertile controls (n = 14) by immunohistochemistry.

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Objective: To investigate whether serum levels of estradiol affect reproductive outcomes of normoresponder women undergoing fresh embryo transfer (ET) versus frozen-thawed ET (FET).

Material And Methods: Two hundred fifty-five normoresponder women underwent fresh ET in their first or second in vitro fertilization cycle. Ninety-two women with negative pregnacy test results underwent FET.

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