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    CAN PLACENTAL HISTOPATHOLOGICAL LESIONS BE A GUIDE TO MATERNAL AND NEONATAL OUTCOMES IN PATIENTS WITH PREECLAMPSIA?
    (Istanbul University Press, 2022) Atigan, A.; Kiliç, D.; Güler, T.; Karakaya, Y.A.
    Objective: The aim of this study was to investigate the predictive role of massive perivillous fibrinoid deposition (MPFD), syncytial knots, and accompanying histopathological features of placentas of preeclampsia (PE) on maternal and neonatal outcomes. Matherials and Methods: A retrospective clinicopathological study was conducted in a tertiary unit. In the study, 51 pregnant women admitted with PE and 55 normotensive healthy pregnant women matched for age and gestational age were compared. Information regarding clinical characteristics, neonatal findings, and placental properties such as syncytial knots, vascular structure density, placental area, volume, and weight) was retrieved. Results: Massive perivillous fibrinoid deposition, syncytial knots and decreased vessels in terminal villi were significantly frequent in the PE group compared to the controls. However, these histopathological findings were not associated with clinical and neonatal outcomes. Conclusions: Syncytial knot and perivillous fibrin deposition are significant microscopic findings of preeclampsia. However, the presence and amount of fibrin deposition were not correlated with perinatal outcome. © 2022 Istanbul Tip Fakultesi Dergisi.All rights reserved.
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    Microarray expression results of VEGF, YAP1 and PTEN immunostains in preeclampsia cases
    (Taylor and Francis Ltd., 2023) Atigan, A.; Karakaya, Y.A.; Kiliç, D.; Guler, O.T.
    We aimed to evaluate the expression of YAP1, PTEN, VEGF in the placentas of patients with preeclampsia and placentas of healthy pregnant women for trophoblast invasion, which is similar to cancer etiopathogenesis. The placentas of 70 women who gave birth, including 30 preeclampsia and 40 healthy controls, were evaluated. YAP1, PTEN and VEGF immunohistochemical staining were performed using the microarray method on placental tissue. The mean ± standard deviation for YAP1, PTEN and VEGF intensity were; 1.57 ± 0.71,2.59 ± 0.80, 1.61 ± 0.59, respectively. PTEN intensity was statistically significantly lower in the preeclampsia group than in the control group (2.37 ± 0.99 vs 2.75 ± 0.58, p = .049). There was no difference between the groups in terms of YAP1 and VEGF staining (p > .05). The etiopathogenesis of preeclampsia is still unclear. However, since trophoblast invasion and endothelial repair have similar aspects with cancer mechanisms, both preeclampsia and cancer studies are progressing by supporting each other. Our study is a prototype study showing that large-participation studies can be carried out easily by using the microarray method as an economic model. © 2023 Taylor & Francis.