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Item Measuring Visfatin Levels in Saliva: An Alternative Approach to Gestational Diabetes Screening(2021) Bildaci, Tevfik Berk; 34762778Objective: Oral glucose tolerance testing (OGTT) is the current recommended approach for the diagnosis of gestational diabetes mellitus (GDM). Visfatin is a type of novel adipokine of interest that mostly participates in glucose metabolism and inflammatory processes. We aim to identify a screening technique for GDM using salivary visfatin levels and to establish this technique's value as a screening method compared to OGTT. Materials and methods: This is a cross-sectional case-control study.The cohort was formed from the saliva samples of pregnant patients in their 24th through 28th weeks of gestation. Patients were divided into two groups depending on their GDM status. OGTT and visfatin test results were compared and subjected to further analysis to establish a cutoff value for visfatin testing. Results: ELISA results indicated a significant difference between patients with GDM compared to patients without GDM; the values were 18.89 +/- 9.59 and 12.44 +/- 8.75, respectively (p: 0.007). A cutoff value of 10.5 ng/mL can be used to detect GDM with 78% sensitivity and 51% specificity. Conclusion: Salivary visfatin levels were significantly higher in patients with GDM. The existence of a differential in the concentration of visfatin in saliva can be utilized to develop a new screening method for GDM.Item Trocar site hernia on an 8-mm port following robotic-assisted hysterectomy(2014) Kilic, Gokhan Sami; Bildaci, Tevfik Berk; Tapisiz, Omer Lutfi; Alanbay, Ibrahim; Walsh, Teresa; Swanson, OlgaThe increasing use of laparoscopy has resulted in added complications specific to the laparoscopic approach, such as trocar site hernia (TSH), which is an uncommon but well-recognized problem for both regular laparoscopic and robotic-assisted laparoscopic procedures. We describe an extremely rare case of TSH at an 8-mm port site occurring a relatively short time after surgery in a 53-year-old patient undergoing roboticassisted laparoscopic hysterectomy for benign reasons. Additionally, this report attempts to explain the possible etiological factors relating to TSH following robotic-assisted surgery. According to our case report, a defect in the 8-mm port that may lead to hernia is one possible explanation, and closure of the 8-mm trocar sites' fascia may be a safer approach during robotic-assisted surgery. Additional reports are needed to accurately determine the frequency of occurrence and importance of this complication. Copyright (C) 2013 Elsevier Taiwan LLC and the Chinese Medical Association. All rights reserved.Item The Importance of CD56 and CD98 Levels in Patients with Recurrent Implantation Failure(2017) Bildaci, Tevfik Berk; Haydardedeoglu, Bulent; Karakaya, Burcu Kisa; Bolat, Filiz Aka; Zeyneloglu, Hulusi Bulent; 0000-0002-0289-2642; B-6487-2009Aim: Despite major advances in assisted reproductive techniques, clinical pregnancy rates remain around 31% with fresh embryo transfer and around 41% with oocyte donations. We also know that the implantation process itself and the window period defined as the "implantation phase'' are significantly important for successful in-vitro fertilization (IVF) cycles. With this study we have tried to determine any differences in immunohistochemical staining for CD56 and CD98 within the implantation phase endometrium of patients with recurrent implantation failure and of a control group that eventually had a successful IVF cycle. Material and Method: This study was retrospectively performed on a total of 36 patients selected out of a database of 6260 patients who received their IVF cycles from 2004 to 2010. Patients were defined as implantation failure if they did not have a positive result for b-HCG testing following at least 3 IVF cycles with a total of at least 8 embryo transfers. The control group was formed with patients who had success (positive b-HCG testing) on their first IVF treatment. Results: Comparison of means for CD 56 staining percentages, CD 98 staining percentages, CD 98 staining power, and CD 98 staining score showed significant difference between the control group and the study group (p<.001). The endometrium of patients without recurrent implantation failure is significantly more stainable by CD 98 than that of patients with recurrent implantation failure. Discussion: We suggest that CD 56 and CD 98 staining for endometrium tissue can be a part of diagnostic testing for patients who are candidates for IVF treatments. We need further studies to determine the correlation between the overall chance for pregnancy and these types of immunohistochemical staining for patients receiving IVF treatment.Item Placental elasticity on patients with gestational diabetes: Single institution experience(2017) Bildaci, Tevfik Berk; Cevik, Halime; Desteli, Guldeniz Aksan; Tavasli, Birnur; Ozdogan, Serdinc; 28539240Background: Gestational diabetes is defined as glucose intolerance which is first recognized in pregnancy. Oral glucose tolerance test (OGTT) is the cornerstone in diagnosing gestational diabetes. Placental elasticity evaluation is relatively new concept and is principally used for research purposes. We aimed to find any relation between placental elasticity evaluation and patients of gestational diabetes diagnosed by 75 g OGTT. Methods: There were 91 patients took part in study, forming two groups as gestational diabetic patients (21 patients) and control group (70 patients). Elasticity of placenta was determined by acoustic radiation force impulse technology utilized by two blinded radiology specialists. Results: We were not able to find any correlation between 75 g OGTT values and placental elasticity measurements (p > .05). Also placental elasticity was not found to be significantly different in two groups (p > .05). Conclusion: Placental elasticity measurement on the 24th-28th weeks does not seem to be a marker for identification of gestational diabetes. Copyright (C) 2017, the Chinese Medical Association. Published by Elsevier Taiwan LLC.