Publications by authors named "Ozbilgin K"

Anti-Mullerian hormone (AMH) has been implicated in the pathogenesis of preeclampsia. The present study was primarily designed to determine the placental tissue AMH, Anti-Mullerian hormone Receptor II (AMHRII), vascular endothelial growth factor (VEGF) and microRNA (miRNA) 26a/126/155/210 expressions and serum miRNA 26a/126/155/210 levels in patients with preeclampsia to examine their potential role in the pathogenesis of preeclampsia. Placental tissue samples from patients with preeclampsia (n = 20) and control subjects (n = 20) were examined by immunohistochemical staining and quantitative polymerase chain reaction (qPCR) for AMH, AMHRII, VEGF mRNA expression levels and miRNA 26a/126/155/210 expressions.

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Introduction: The aim of this study was to evaluate testicular perfusion and vascularization with intraoperative ICG/NIR imaging in a testicular ischemia-reperfusion model and to investigate the effects of ICG on testicular tissue.

Materials And Methods: 24 male rats were divided into four groups. In the ICG group, only ICG was given and images of the testicles were recorded with NIR camera.

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mTOR is a member of the PI3K/Akt/mTOR signaling pathway that participates in cell growth, proliferation, protein synthesis, transcription, angiogenesis, apoptosis and autophagy. mTOR and MAPK pahways are two important key signal pathways which are related to each other. We investigated the role of mTOR and other signaling molecules in rat ovaries and uteruses in stages of the estrous cycle.

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The aim of the current study was to determine whether the MWCNT-based scaffold has a suitable structure for cell growth and provides a biocompatible environment for human MDA-MB-231 cell lines. MWCNT-based nanostructured scaffolds were produced by plasma-enhanced chemical vapor deposition (PECVD) technique. MDA-MB-231 cells were seeded on MWCNTs-textured silicon scaffolds and on pristine silicon surfaces.

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Mammalian target of rapamycin (mTOR) is a member of the PI3K/Akt/mTOR signaling pathway that participates in cell growth, proliferation, protein synthesis, transcription, angiogenesis, apoptosis and autophagy. We investigated the role of mTOR and other signaling molecules in the rat uterus during implantation. Female pregnant rats were divided into three groups: embryonic days (ED) 4.

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Abdominal surgery is linked with peritoneal adhesions. We investigated that the anti-fibrotic agent pirfenidone (PFD) has immune modulating activities and evaluated its effects on the function of T helper type 1 (Th1), Th2 and T regulatory (Treg) cells, which may play important roles in peritoneal adhesions. Eighteen female Wistar rats underwent right-sided parietal peritoneal and right uterine horn adhesion model.

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Objective: To compare the distribution of proopiomelanocortin (POMC) in decidua and placenta samples from missed abortion and voluntary termination cases in order to research the effects in the etiology of missed abortion.

Study Design: Decidual materials were collected from patients who were diagnosed with missed abortion (n=19) and legal voluntary termination cases (n=15) under 10 gestational weeks. Materials were divided into 2 groups for examination.

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Aim: To study the efficacy of pirfenidone for prevention of postoperative adhesion formation in an adhesion rat model.

Materials And Methods: Eighteen female Wistar rats were subjected to right-sided parietal peritoneum and right uterine horn adhesion model. Rats were randomized into three groups: group 1 (control) (closure of midline abdominal incision without any agent administration), group 2 (closure of incision after intraperitoneal administration of pirfenidone), and group 3 (closure of incision and only oral administration of pirfenidone for 14 days).

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Background: Forkhead transcription factors 3a (FOXO3a) has pleiotropic biological functions in the female reproductive tract. FOXO3a has a function in decidualization, in placental development, and also in inhibition of apoptosis. This study aims to investigate a possible role of FOXO3a in missed abortion.

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Objective: To identify the role of furin, TNF-α, and TGF-β2 in human missed abortion pathogenesis.

Study Design: Decidual materials were collected from patients diagnosed with a missed abortion (n = 10) (missed abortion group) and from legal voluntary termination cases at < 10 gestational weeks (n = 10) (normal pregnancy group). Tissue samples were collected from each group by dilation and curettage under mask anesthesia.

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Objective: The authors aimed to evaluate the angiogenic changes that occur in the cases with missed abortions compared with the voluntary termination of pregnancy as control group, with this controlled clinical study.

Materials And Methods: The study included fifteen healthy volunteer women with unwanted pregnancy less than 10th gestational week in an academic research environment. The patients were 19 women between 6th and 11th gestational weeks diagnosed with missed abortion as the patient group.

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Objective: Heparin-binding epidermal growth factor (HB-EGF) has pleiotropic biological functions in the female reproductive tract. HB-EGF has a function in the menstruation cycle, implantation, decidualization, placenta development, and also inhibition of apoptosis. This study aims to investigate a possible role of HB-EGF in missed abortion.

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Mechanisms of hypoxia-related angiogenesis are important for uterine smooth muscle tumors. Factors that are related to angiogenesis during hypoxia include vascular endothelial growth factor (VEGF), hypoxia inducible factor 1α (HIF1α), T-cell intracellular antigen1 (TIA1), eukaryotic translation initiation factor 2α (eIF2α) and thrombospondin 1 (TSP1). We investigated immunoreactivities of VEGF, HIF1α, TIA1, eIF2α and TSP1 using an indirect immunoperoxidase method for formalin fixed, paraffin embedded tumors that had been diagnosed as leiomyoma (LMY), cellular leiomyoma (CLM) or leiomyosarcoma (LMS).

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Objective: There are no well-defined findings about reasons for first trimester abortion in some pregnancy cases. Selectins are cell adhesion proteins which are important for blastocyst implantation in the decidua. The goal of the study was to investigate the role of selectins in first trimester pregnancy loss by immunohistochemistry.

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Aim: Transforming growth factor β (TGF-β) and Smads control intracellular signaling pathways in neurulation. Although previously reported similar experimental animal studies, the aim of this human study is to investigate the expression of TGF-β (1,2,3) and Smads (1,2,3,6,7) in aborted human fetuses with myeloschisis.

Material And Methods: Twelve human fetuses with neural tube defect were obtained.

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Background: Receptor for hyaluronic acid mediated motility (RHAMM) has intracellular and extracellular functions. In this study, we focus on the expression of RHAMM in the rat uterus during estrous cycle and implantation period.

Methods: The female adult rats were divided into six groups following estrous cycle determination (n = 36).

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Aim: The goal of this study was to investigate the combined effects of raloxifene and atorvastatin in aged ovariectomized rats during endothelial dysfunction and atherosclerotic process.

Material And Methods: This study was conducted on 28 Wistar albino female rats randomly divided into four groups. All groups were ovariectomized and one group was kept as the control group (OVX).

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Aberrant activation of the JAK/STAT pathway may predispose to malignancy as a consequence of the deregulation of cell proliferation, differentiation or apoptosis such as in cancer of the blood, head and neck, and breast. In our study we aimed to investigate the effects of 5-fluorouracil (5-FU) and gemcitabine on a breast cancer cell line (MCF-7 cells) via the JAK/STAT pathway. Distribution of JAK1, JAK2, JAK3 and STAT2, STAT3, STAT4, STAT5 were evaluated on MCF-7 cells following gemcitabine and 5-FU treatment and in the absence of drug treatment by an indirect immunohistochemical method.

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Background: Allergic rhinitis (AR) is a disease in which T-helper (Th)2 response is predominant and its pathogenic mechanism is still poorly understood.

Aim: To evaluate the possible role of Th1, Th2 and regulatory-T (Treg) cells in the pathogenesis of AR.

Methods: This case-control study enrolled 41 patients with seasonal AR (10-62 years old), sensitive to olive pollens, and 15 healthy controls (18-60 years old).

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Obstructive jaundice damages critical functions in the liver. Nitric oxide modulation would influence liver damage induced by biliary obstruction, and little is known about it Acute cholestasis was induced by bile duct ligation (BDL) in two groups of male Sprague-Dawley rats. L-Arginine or serum physiologic was administered to treatment and control group.

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Purpose: To determine the effect of GnRH-antagonist therapy on the expression of heparin binding-epidermal growth factor (HB-EGF) and MUC-1 glycoprotein in hyperstimulated rat ovaries.

Methods: 30 female Wistar rats were divided into three groups (control, FSH and FSH+cetrorelix). Control rats were given 0.

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Background: Seasonal allergic rhinitis (SAR) is characterized by a helper T (Th)2 cell-mediated immune response at the target site. There is a relative Th1 and/or regulatory T (Treg) cell insufficiency in patients with SAR. It has been demonstrated that there is a change in the balance between these cells after allergen-specific immunotherapy (SIT), which is a curative treatment modality for this disease.

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Objective: To investigate the effect of exogenous ovarian stimulation with human menopausal gonadotropin (hMG) and recombinant follicle stimulating hormone (rFSH) on the expression of integrins alpha(3), beta(1) in the rat endometrium during implantation.

Study Design: Following three successive normal estrous cycles the animals were divided into five groups: Group I (n=10, control group) received no medication; Group II (n=10) received 10 units of hMG; Group III (n=10) received 20 units of hMG; Group IV (n=10) received 10 units of rFSH; Group V (n=10) received 20 units of rFSH at midday of middiestrous. The rats were then mated with fertile males.

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Aim: To evaluate the effects of growth hormone (GH) on the histology of small intestines which might be related to the role of insulin like growth factor (IGF)-I, IGF-binding protein 3 (IGFBP-3) and its receptors.

Methods: Twelve week-old adult male Wistar albino rats were divided into two groups. The study group (n = 10), received recombinant human growth hormone (rGH) at a dose of 2 mg/kg per day subcutaneously for 14 d and the control group (n = 10) received physiologic serum.

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