Fiçicioglu, C. | Yildirim, G. | Attar, Rukset | Kumbak, B. | Yesildaglar, N.

Article | 2010 | Reproductive BioMedicine Online20 ( 6 ) , pp.776 - 782

The objective of this study was to determine whether there was a threshold for the number of CGG repeats in the FMR1 (fragile X) gene in premature ovarian ageing and premature ovarian failure and to investigate the association of this sequence with serum concentrations of anti-Müllerian hormone (AMH), inhibin B, anti-thyroid and anti-adrenal autoantibodies. In this prospective randomized controlled preliminary study, the number of triple CGG repeats and serum concentrations of FSH, AMH and aforementioned autoantibodies were evaluated in 79 women who were younger than 40 years old. FSH concentrations were between 12 and 50 IU/ml (pre . . .mature ovarian ageing) in 30 women and were higher than 50 IU/ml (premature ovarian failure) in nine women; FSH concentrations were normal in 40 women. All women whose FSH concentrations were higher than 12 IU/ml had CGG repeats greater than 30. No women whose FSH concentrations were normal had a repeat number above 30. There was no significant relationship between the levels of antibodies and either CGG repeat numbers or FSH concentrations. In conclusion, the number of CGG repeats between 30 and 40 might be used to predict premature ovarian ageing and premature ovarian failure in infertile women. © 2010, Reproductive Healthcare Ltd. Published by Elsevier Ltd. All rights reserved Daha fazlası Daha az

Cetinkaya, N. | Attar, Rukset | Yildirim, G. | Ficicioglu, C. | Ozkan, F. | Yılmaz, B. | Yesildaglar, N.

Article | 2015 | Archives of Gynecology and Obstetrics291 ( 3 ) , pp.591 - 598

Aims: To determine the effects of different doses of melatonin treatment on endometrial implants, the activity of antioxidant enzyme superoxide dismutase (SOD), the angiogenesis factor, the vascular endothelial growth factor (VEGF) and the waste metabolite product of lipid peroxidation malondialdehyde (MDA) in an oophorectomized rat endometriosis model.Methods: Thirty-two, female, non-pregnant, nulligravid Sprague–Dawley, albino rats were used in this prospective, randomized, controlled and experimental study. Endometriosis was surgically induced in oophorectomized rats, and estradiol treatment was started after the first operation . . .and continued till the end of the study. Second look, third look and necropsy operations were performed in the 2nd, 4th and 6th weeks. Mean volumes, histological scores and biochemical parameters were evaluated throughout the study.Results: The mean volumes of endometriotic foci were 98.8 mm3 ± 17.2 vs. 108.2 mm3 ± 17.5, 54.1 mm3 ± 15.6 vs. 25.8 mm3 ± 3.6, 42.8 mm3 ± 10.5 vs. 32.7 mm3 ± 6.0 and histopathological scores were 2.2 ± 0.2 vs. 1.7 ± 0.1, 2.6 ± 0.2 vs. 2.2 ± 0.2, 2.6 ± 0.1 vs. 2.7 ± 0.2 in the 10 vs. 20-mg/kg/day melatonin group at the end of the second, fourth and sixth weeks, respectively. When the groups were compared, no significant differences were seen in the histopathologic scores, SOD and VEGF levels between the groups. However, the endometriotic foci volumes were significantly decreased in both melatonin treatment groups with respect to the control group at the end of the fourth and sixth weeks. Moreover, the mean MDA levels were significantly lower in the control group than in the 10-mg/kg/day melatonin group at the end of the fourth and sixth weeks.Conclusion: Melatonin treatment resulted in the regression of endometriotic lesions in oophorectomized rats. Higher doses of melatonin treatment might be more effective in the regression of implants and improvement of histologic scores as well as in the precise evaluation of SOD, MDA and VEGF distributions in the rat experimental models. © 2014, Springer-Verlag Berlin Heidelberg Daha fazlası Daha az

Ficicioglu, C. | Kumbak, B. | Akcin, O. | Attar, Rukset | Yildirim, G. | Yesildaglar, N.

Article | 2010 | Gynecological Endocrinology26 ( 3 ) , pp.181 - 186

Background. This study investigated whether follicular fluid (FF) and serum (S) concentrations of cytokines in women undergoing assisted reproductive treatment (ART) were different in GnRH antagonist cycles compared to agonist long ones. Methods. A retrospective clinical study was performed at a University ART center. A total of 85 women who underwent ART either with agonist long (n=34) or antagonist protocol (n=51) were analyzed. FF and serum samples were collected at the time of oocyte retrieval and measured for interleukin (IL)- 1ß, IL-6, IL-8, IL-12, tumor necrosis factor (TNF)-? by the enzyme-linked immunosorbent assay (ELISA) . . .technique, using commercially available kits and nitric oxide (NO) by the nitrate/nitrite colorimetric assay. The results were compared between GnRH antagonist and agonist cycles. Results. No significant difference was found in the FF concentrations of those cytokines between the two protocols. The serum values were also similar in the two groups except IL-6 (14.3±4.8 vs. 20.5±12.2 pg/ml; p=0.008) and NO (1.4±1.1 vs. 2.2±1.9 µm; p=0.038) levels which were found to be significantly lower in antagonist cycles. Conclusions. There is no significant difference in follicular microenvironment in terms of IL-1ß, IL-6, IL-8, IL-12, TNF-?, and NO levels between agonist long and antagonist cycles. However, serum IL-6 and NO levels were lower in women given antagonists. © 2010 Informa UK Ltd Daha fazlası Daha az

Yildirim, G. | Attar, Rukset | Ozkan, F. | Kumbak, B. | Ficicioglu, C. | Yesildaglar, N.

Article | 2010 | Fertility and Sterility93 ( 6 ) , pp.1787 - 1792

Objective: To determine the effects of letrozole and melatonin on surgically induced endometriosis in a rat endometriosis model. Design: Prospective, randomized, controlled, experimental study. Setting: Experimental Research Center of Yeditepe University (YUDETAM). Animal(s): Thirty female, nonpregnant, nulligravid Wistar-Hannover albino rats. Intervention(s): Surgical induction of endometriosis, administration of estrogen for 2 weeks, and laparotomy; administration of letrozole or melatonin for 2 weeks after induction of endometriosis, and laparotomy; administration of estrogen for 2 weeks and necropsy. Main Outcome Measure(s): The . . . volume and histopathologic scores of endometriotic foci, and levels of superoxide dismutase, catalase, and malondialdehyde in the peritoneal fluid. Result(s): The mean volumes of the endometriotic foci were 99.6 ± 18.8 mm3, 21.5 ± 7.4 mm3, and 29.2 ± 17.5 mm3, and histopathologic scores were 2.5 ± 0.7, 2.0 ± 0.8, and 1.7 ± 0.9 in the melatonin group at the end of the second, fourth, and sixth weeks, respectively. The mean volumes of the endometriotic foci were 75.9 ± 26.3 mm3, 29.8 ± 14.7 mm3, and 121.2 ± 35.1 mm3 and the histopathologic scores were 2.5 ± 0.5, 2.2 ± 0.8, and 2.7 ± 0.4 in the letrozole group at the end of the second, fourth, and sixth weeks, respectively. In the melatonin group, peritoneal fluid superoxide dismutase and catalase levels increased statistically significantly. Conclusion(s): Melatonin caused more pronounced regression of endometriotic foci when compared with letrozole in a rat model. After the cessation of melatonin treatment, the recurrence rate was lower than that observed after the cessation of letrozole treatment. © 2010 American Society for Reproductive Medicine Daha fazlası Daha az

Yesildaglar, N. | Yildirim, G. | Attar, Rukset | Karateke, A. | Ficicioglu, C. | Yılmaz, B.

Article | 2010 | Fertility and Sterility93 ( 5 ) , pp.1722 - 1724

The effects of water collected from an industrially polluted river in a rat model with surgically induced endometriosis were investigated in this preliminary study. Exposure to industrially polluted water resulted in regressed endometriotic lesions and enhanced adhesion formation. © 2010 American Society for Reproductive Medicine.

Yildirim, G. | Attar, Rukset | Ficicioglu, C. | Karateke, A. | Ozkan, F. | Yesildaglar, N.

Article | 2011 | Archives of Gynecology and Obstetrics283 ( 6 ) , pp.1297 - 1302

Objective: To determine the effects of etanercept (anti-TNF-?) on surgically induced endometriosis in a rat model. Materials and methods: This is a prospective, randomized, controlled, experimental study that was carried out at the Experimental Research Center of Yeditepe University (YUDETAM). Thirty female nonpregnant, nulligravid Wistar-Hannover albino rats were used. The summary of the technique: surgical induction of endometriosis, administration of estrogen for 2 weeks, and laparotomy; administration of etanercept for 2 weeks following the induction of endometriosis and laparotomy; administration of estrogen for 2 weeks and nec . . .ropsy. The volume and histopathological scores of the endometriotic foci were evaluated. Results: One-hundred twenty uterine horns were implanted in 30 rats. Endometriosis was completely formatted in 112 lesions (93.3%). No rats were lost. In the etanercept group, the lesions' volumes were 83.9 ± 13.1, 47.2 ± 8.4, and 96.7 ± 34.8 mm3 at the end of the second week (pretreatment stage), at the end of the fourth week (post-treatment stage), and at the end of the sixth week, respectively (P = 0.007). Histopathologic scores were 2.3 ± 0.2, 1.7 ± 0.2, and 1.9 ± 0.1, respectively (P = 0.08). The changes in the other groups were not statistically significant. Conclusions: Etanercept, a fusion protein consisting of human recombinant soluble TNF receptor-2, neutralizes TNF activity. Anti-TNF therapy could be a new non-hormonal therapeutic option for the treatment of endometriosis in humans. © 2010 Springer-Verlag Daha fazlası Daha az

Attar, Rukset | Yildirim, G. | Kumbak, B. | Ficicioglu, C. | Demirbag, S. | Yesildaglar, N.

Article | 2011 | Journal of Obstetrics and Gynaecology Research37 ( 2 ) , pp.125 - 131

Aim: To evaluate the efficacy of hyaluronate/carboxymethylcellulose (HA/CMC) membrane and melatonin separately and in combination in reducing adhesion reformation following adhesiolysis of surgically induced adhesions in a rat uterine horn adhesion model. Methods: A randomized, prospective study was carried out in a university animal laboratory. Ninety-eight female Sprague-Dawley albino rats were operated on. Following infliction of standard lesions, all the animals underwent second operations after one week. In all the animals, there were dense and vascular adhesions only between the uterine horns. These adhesions were lysed. Follo . . .wing the completion of adhesiolysis, the animals were randomized before closure of the abdomen to one of four groups (melatonin, HA/CMC membrane, combination of melatonin and HA/CMC membrane, control group). Seven days after the second surgery, the third operations were carried out and adhesions were scored. The main outcome measures were type, tenacity, and extent of adhesions. Total adhesion scores were determined. Results: Adhesion scores in the melatonin and HA/CMC membrane groups were similar, and significantly lower than those in the control group (P < 0.001). Adhesion scores in the combination group were lower than those in the other three groups (P < 0.001). Conclusion: Melatonin and HA/CMC membrane are both effective separately in preventing adhesion reformation following adhesiolysis, but in combination they are signiicantly more beneicial. © 2010 Japan Society of Obstetrics and Gynecology Daha fazlası Daha az

Yesildaglar, N. | Yildirim, G. | Yildirim, O.K. | Attar, Rukset | Ozkan, F. | Akkaya, H. | Yılmaz, B.

Article | 2016 | Clinical and Experimental Obstetrics and Gynecology43 ( 1 ) , pp.25 - 30

Objective: To evaluate the effects of melatonin on endometriotic lesions induced by implanting human endometriotic cells in SCID mice. Materials and Methods: Prospective, randomized, controlled, experimental study. Experimental Research Center of Yeditepe University (YUDETAM). Thirty female, non-pregnant, nulligravid severe combined immunodeficient (SCID) mice. Endometriotic cells collected from patients with endometriosis were implanted subcutaneously in 30 SCID mice. These mice were randomized into two study groups: in the first group, mice were administered melatonin (20 mg/kg/day) following induction of endometriosis for four we . . .eks; in the second group, nothing was administered. All the mice were given a high dose of exogenous estradiol (50 µg/kg/d, twice weekly). Four weeks after inoculation, necropsies were performed and endometriotic lesions were collected. All the lesions were evaluated histopathologically and the levels of SOD and MDAwere assessed in the lesions. Results: Successful implantation was observed in the 28 mice that survived. Mean MDA level was 5.0±1.7 and 8.8±2.6 in the melatonin and control groups, respectively (p = 0.01); mean SOD level was 1.1 ± 0.1 and 1.0 ± 0.1 in the melatonin and control groups, respectively (p = 0.49). Mean histopathological score was lower in the melatonin group (p = 0.04). Conclusions: Melatonin was effective in the treatment of experimental endometriosis induced in SCID mice Daha fazlası Daha az

Kumbak, B. | Atak, I.E. | Attar, Rukset | Yildirim, G. | Yesildaglar, N. | Ficicioglu, C.

Article | 2010 | Journal of Reproductive Medicine for the Obstetrician and Gynecologist55 ( 10 ) , pp.417 - 422

OBJECTIVE: To investigate the psychologic impact of male factor infertility on men in couples undergoing assisted reproductive treatment in Turkey. STUDY DESIGN: A prospective study was carried out in a total of 105 men: 43 with male factor, 31 with female factor and 31 with unexplained infertility diagnoses. The men answered questionnaires-State Trait Anxiety Inventory, State Trait Anger Expression Inventory and Beck Depression Inventory-during treatment. The scores from each questionnaire were analyzed and compared according to the infertility diagnosis. RESULTS: No significant differences were found in measures of anxiety, anger . . .or depression among men with male factor, female factor and unexplained infertility. CONCLUSION: In the current preliminary study performed on a group of Turkish men who applied for in vitro fertilization treatment, it was found that male factor infertility as the cause of the couple's infertility problem did not have an adverse effect on the psychologic status of men undergoing assisted reproductive treatment. It is suggested that men's psychologic adjustment to their own infertility diagnosis does not indicate that they are psychologically ill. © Journal of Reproductive Medicine®, Inc Daha fazlası Daha az