Browsing by Author "Turan G.A."
Now showing 1 - 9 of 9
Results Per Page
Sort Options
Item The efficacy of complete blood count parameters in the diagnosis of tubal ectopic pregnancy(Studio K Krzysztof Molenda, 2014) Eskicioğlu F.; Özdemir A.T.; Turan G.A.; Gür E.B.; Kasap E.; Genç M.Objective: Ectopic pregnancy (EP) is the major cause of maternal morbidity and is responsible for maternal mortality in the first trimester. In order to reduce undesirable results, it is necessary to find rapid and accurate, non-surgical diagnostic tests for EP. The goal of the study was to investigate the differences in complete blood count parameters between tubal EPs and healthy pregnancies in be used in the diagnosis of ectopic pregnancy. Study design: White blood cell (WBC), neutrophil, monocyte, lymphocyte, platelet (PLT) counts, mean PLT volume (MPV) and PLT distribution width (PDW) levels in the complete blood count samples have been obtained from subjects with diagnosed tubal EP (n=78; study group) and women with healthy intrauterine gestations (n=79; control group). Statistical comparisons between groups were performed using the t test. Results: PDW levels were found to be significantly higher in the control group than EP (p<0.001). However, no differences between the study and control groups with regard to PLT and MPV levels were observed. WBC levels were found to be significantly higher in the EP group as compared to controls (p<0.001). When leukocyte differentials were compared, monocyte counts in the EP group were significantly higher than in controls (p=0.005). No statistically significant differences in neutrophil and lymphocyte values were observed in either group. Conclusion: PDW as an indicator of PLT activation is lower in tubal EP than intrauterine pregnancy so, possibly, endometrial invasion in the intrauterine pregnancy needs more PLT activation. Monocyte counts are higher in tubal EP, indicating that monocyte activation in the pathophysiology of EP could be effective in the formation of tubal motility and microenvironment regulation. © Polskie Towarzystwo Ginekologiczne.Item Mid-pregnancy vitamin D levels and postpartum depression(Elsevier Ireland Ltd, 2014) Gur E.B.; Gokduman A.; Turan G.A.; Tatar S.; Hepyilmaz I.; Zengin E.B.; Eskicioglu F.; Guclu S.Objectives: Postpartum depression (PPD) is a common disorder that affects 10-15% of postpartum women, and it can have negative effects on both the mother and newborn. Recent studies have suggested that low levels of vitamin D are associated with poor mood and depression. The aim of this prospective study was to evaluate a possible association between PPD and serum levels of 25-hydroxy vitamin D3 (25(OH)D3), a reliable measurement of vitamin D, during mid-pregnancy. Study design: The source population consisted of all pregnant women between 24 and 28 gestational weeks from June 2012 to October 2012 at Bornova Health Research and Application Hospital, Sifa University. In order to better evaluate a possible effect between vitamin D levels and PPD, individuals with characteristics that put them at risk for developing PPD were excluded from the study. Serum 25(OH)D3 levels were evaluated mid-pregnancy in the study group. Serum 25(OH)D3 concentrations ≤20 ng/mL (50 nmol/L) were classified as a mild deficiency and those ≤10 ng/mL (25 nmol/L) were classified as a severe deficiency. Pregnant subjects having complications during birth or with the newborn after delivery were excluded from the study. The Edinburgh Postnatal Depression Scale (EPDS) was used to assess maternal PPD 1 week, 6 weeks, and 6 months after delivery. A Pearson correlation was used to measure the strength of the associations between the EPDS scores and vitamin D levels analyzed during the three time periods. A logistic regression analysis was used to determine the independent effects of vitamin D on PPD. Results: Six hundred and eighty-seven pregnant women were included in this study. After excluding women due to PPD risk factors (in two stages), 179 pregnant women were screened for vitamin D levels during mid-pregnancy and in the 6th month postpartum. Eleven percent of our study group had severe vitamin D deficiency and 40.3% had mild vitamin D deficiency. The frequency of PPD was 21.6% at the 1st week, 23.2% at 6th week, and 23.7% at the 6th month. There was a significant relationship between low 25(OH)D3 levels in mid-pregnancy and high EPDS scores, which is indicative of PPD for all three follow-up periods (p = 0.003, p = 0.004 and p < 0.001, respectively). In addition, there was a significant negative correlation between vitamin D levels and EDPS at all three time points (r = -0.2, -0.2, -0.3, respectively). Conclusions: Vitamin D deficiency in mid-pregnancy may be a factor affecting the development of PPD. More extensive studies are required to be carried out on this subject. © 2014 Elsevier Ireland Ltd. All rights reserved.Item Montelukast is effective in preventing of ovarian hyperstimulation syndrome; an experimental study(Studio K Krzysztof Molenda, 2015) Eskicioğlu F.; Turan G.A.; Sivrikoz O.N.; Cengiz H.; Akan Z.; Şahin N.; Yilmaz O.; Yeşil H.; Vatansever S.Objectives: To determine the efficacy of montelukast in comparison with cabergoline in the prevention of ovarian hyperstimulation syndrome (OHSS) in rats. Material and methods: An experimental OHSS model was formed in 35 female Wistar rats. Rats (22 days old) were randomized into 5 groups, each containing 7 animals. The control group received no therapy; the mild OHSS group was administered pregnant mare serum gonadotropin (PMSG) 10 IU for 4 days, hCG 10 IU on the 5th day; the severe OHSS group received PMSG 10 IU for 4 days, hCG 30 IU on the 5th day. The montelukast group: received montelukast 10 mg/kg/day and the cabergoline group was administered cabergoline 100μg/kg/day via oral gavage for 6 days (days 22-27), in addition to those of severe OHSS. All groups were sacrificed on 28th day. Body weight, ovarian diameter and weight, vascular permeability, vascular endothelial growth factor (VEGF), semiquantitative VEGF receptor-1, and VEGF receptor-2 (VEGFR-2) immunohistochemistry were evaluated. Results: Ovarian diameter and VEGF expression were significantly lower in the montelukast and cabergoline groups than in the severe OHSS group. While montelukast was more effective in limiting vascular permeability in the severe OHSS, cabergoline was superior to montelukast with respect to the limiting effect on increased body weight and VEGFR-2 expression. Conclusions: The VEGF/VEGFR-2 interaction plays an important role in OHSS pathogenesis. Montelukast limits VEGF expression, and cabergoline reduces both VEGF and VEGFR-2 expressions; they are both effective therapies for the prevention of severe OHSS.Item Montelukast is effective in preventing of ovarian hyperstimulation syndrome; an experimental study(Studio K Krzysztof Molenda, 2015) Eskicioğlu F.; Turan G.A.; Sivrikoz O.N.; Cengiz H.; Akan Z.; Sahin N.; Yilmaz O.; Yesil H.; Vatansever S.Objectives: To determine the efficacy of montelukast in comparison with cabergoline in the prevention of ovarian hyperstimulation syndrome (OHSS) in rats. Material and methods: An experimental OHSS model was formed in 35 female Wistar rats. Rats (22 days old) were randomized into 5 groups, each containing 7 animals. The control group received no therapy; the mild OHSS group was administered pregnant mare serum gonadotropin (PMSG) 10 IU for 4 days, hCG 10 IU on the 5th day; the severe OHSS group received PMSG 10 IU for 4 days, hCG 30 IU on the 5th day. The montelukast group: received montelukast 10 mg/kg/day and the cabergoline group was administered cabergoline 100μg/kg/day via oral gavage for 6 days (days 22-27), in addition to those of severe OHSS. All groups were sacrificed on 28th day. Body weight, ovarian diameter and weight, vascular permeability, vascular endothelial growth factor (VEGF), semiquantitative VEGF receptor-1, and VEGF receptor-2 (VEGFR-2) immunohistochemistry were evaluated. Results: Ovarian diameter and VEGF expression were significantly lower in the montelukast and cabergoline groups than in the severe OHSS group. While montelukast was more effective in limiting vascular permeability in the severe OHSS, cabergoline was superior to montelukast with respect to the limiting effect on increased body weight and VEGFR-2 expression. Conclusions: The VEGF/VEGFR-2 interaction plays an important role in OHSS pathogenesis. Montelukast limits VEGF expression, and cabergoline reduces both VEGF and VEGFR-2 expressions; they are both effective therapies for the prevention of severe OHSS. © Polskie Towarzystwo Ginekologiczne.Item Myo-inositol is a promising treatment for the prevention of ovarian hyperstimulation syndrome (OHSS): an animal study(Springer Verlag, 2015) Turan G.A.; Eskicioglu F.; Sivrikoz O.N.; Cengiz H.; Adakan S.; Gur E.B.; Tatar S.; Sahin N.; Yilmaz O.Purpose: To evaluate the efficacy of myo-inositol (MI) pretreatment in OHSS. Methods: In this experimental OHSS rat model, 42 immature Wistar albino female rats were divided into 6 groups: (1) the control group, (2) the ovarian stimulation group, (3) the OHSS group, (4) the OHSS + Metformin group, (5) OHSS + MI group, (6) OHSS + Metformin + MI group. OHSS was established after treatment with metformin and myo-inositol for 14 days, in the meanwhile the treatment of metformin and myo-inositol was also continued. All animals were killed 48 h after hCG administration and were compared in terms of vascular permeability, ovarian weight and diameter, ovarian VEGF, COX-2 and PEDF expression (immunohistochemistry), serum PEDF and estradiol (E2) levels. Results: Vascular permeability, VEGF and COX-2 expressions were reduced in animals treated with MI and/or metformin. While PEDF expression was increased in the groups taking metformin, there was no difference in PEDF expression in the group taking MI and OHSS group. There was no significant difference in serum PEDF levels between groups. Blood E2 levels were decreased in groups treated with MI or metformin compared to the OHSS group. Conclusions: Our data demonstrate that myo-inositol is effective in preventing OHSS, similar to metformin. Although the two drugs are thought to act through distinct mechanisms, there is no apparent benefit to co-treatment with both drugs in an animal model of OHSS. Administration of myo-inositol prior to IVF treatment may favor the control of ovulation induction. Further studies are necessary to elucidate the mechanism of action and further support our findings. © 2015, The Author(s).Item Prophylactic vitamin D supplementation in ovarian hyperstimulation syndrome: an animal study(Springer Verlag, 2015) Turan G.A.; Eskicioglu F.; Sivrikoz O.N.; Cengiz H.; Gur E.B.; Tatar S.; Sahin N.; Yilmaz O.Purpose: To investigate the effect of vitamin D in ovarian hyperstimulation syndrome (OHSS). Methods: In this animal study, 28 immature female Wistar rats were divided into four groups: group 1 (control); group 2 (ovarian stimulation); group 3 (OHSS group); group 4 (OHSS + vitamin D group). All groups were killed 48 h after hCG administration and were compared in terms of vascular permeability, ovarian weight, ovarian diameter, vascular endothelial growth factor (VEGF) expression (immunohistochemistry) in ovarian tissue and pigment epithelium-derived factor (PEDF) level in the serum (ELISA test) with the Kruskal–Wallis and Mann–Whitney U tests. Results: VEGF expression in the vitamin D group was similar to that in the OHSS group. However, the PEDF level was significantly higher in the vitamin D group (p = 0.013). Conclusions: Prophylactic vitamin D supplementation is not sufficiently effective in preventing OHSS. Vitamin D effectively increases PEDF, which has an opposing effect on VEGF, which plays a key role in OHSS. Thus, the protective effect of Vitamin D on OHSS should be investigated with a vitamin D deficient model in the study group. © 2015, Springer-Verlag Berlin Heidelberg.Item The association of HLA-G and immune markers in recurrent miscarriages(Taylor and Francis Ltd, 2016) Eskicioğlu F.; Özdemir A.T.; Özdemir R.B.; Turan G.A.; Akan Z.; Hasdemir S.P.Objective: To determine role of human leukocyte antigen (HLA)-G, CD8, CD16, CD56, interferon (IFN)-γ, and tumor necrosis factor (TNF)-α for recurrent miscarriages in feto–maternal interface. Method: Chorion and decidua samples were obtained from 11 women with unwanted pregnancies (healthy pregnancy, HP) and 10 women with missed abortion diagnosis after at least two pregnancy losses (recurrent miscarriage, RM). In addition, endometrial tissues were obtained from 10 non-pregnant women (NonP). The expressions of markers were evaluated using the Western blot analysis. The values obtained between different groups were compared. Results: The highest protein expression of CD56 was found in the HP compared to NonP and RM. Meanwhile, the lowest protein expression of CD16 was observed in the NonP compared to HP and RM. The HLA-G expression exhibited the highest level in HP; however, there was no statistically significant difference between groups. CD8 and IFNγ expressions were lowest in the NonP group; however, TNF-α was highest in the RM group. Conclusions: The CD56 expression of uterine NK cells may be an indicator of a HP. However, not statistically significant, the increased expression of CD16, CD8, and also significantly increased expression of TNF may be associated with the predominant cytotoxic activity in the maternal immune system in patients with RM. Although there was no change in the expression of HLA-G, this finding may mean that the maternal immune system is unresponsive to HLA-G-mediated immunosuppressive signals originating from the fetus in these cases. © 2015 Taylor & Francis.Item Erratum to Myo-inositol is a promising treatment for the prevention of ovarian hyperstimulation syndrome (OHSS): an animal study [Arch Gynecol Obstet, (2015), 292, (1163-1171), DOI 10.1007/s00404-015-3747-5](Springer Verlag, 2016) Turan G.A.; Eskicioglu F.; Sivrikoz O.N.; Cengiz H.; Adakan S.; Gur E.B.; Tatar S.; Sahin N.; Yilmaz O.[No abstract available]Item Erratum to Prophylactic vitamin D supplementation in ovarian hyperstimulation syndrome: an animal study [Arch Gynecol Obstet, (2015), 292, (421-427), DOI 10.1007/s00404-015-3625-1](Springer Verlag, 2016) Turan G.A.; Eskicioglu F.; Sivrikoz O.N.; Cengiz H.; Gur E.B.; Tatar S.; Sahin N.; Yilmaz O.[No abstract available]