Sibel Sak
Harran University
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Featured researches published by Sibel Sak.
International Journal of Surgery | 2013
Muhammet Erdal Sak; Hatice Ender Soydinç; Sibel Sak; Mehmet Sıddık Evsen; Ulaş Alabalık; Fatih Akdemir; Talip Gül
BACKGROUND To evaluate the protective effects of curcumin in experimental ischemia and ischemia/reperfusion (I/R) injury of rat ovaries. METHODS Forty-eight female adult Wistar Albino rats were used. Rats divided into six groups and designed: Sham, Torsion, Detorsion, Sham + Curcumin, Torsion + Curcumin, and Detorsion + Curcumin. Except for the Sham and Sham + Curcumin group, all groups were performed to bilateral adnexal torsion for 3 h. Bilateral adnexal detorsion was implemented in the Detorsion and Detorsion + Curcumin groups. The injection of curcumin was intraperitoneally achieved 30 min before the sham, torsion and detorsion. RESULTS Total oxidant status levels (TOS), oxidative stress index (OSI) and histologic scores values of ovarian tissue were higher in the torsion and detorsion groups than the sham group (p < 0.05). There was a strong correlation between the total histologic scores of I/R injury and the OSI (r = 0.809, p < 0.001). By the use of curcumin, a significant decrease was established in the mean levels of oxidant markers and histopathologic scores of the ovarian tissues. CONCLUSIONS Administration of curcumin is effective in reversing tissue damage induced by ischemia-reperfusion injury in ovarian torsion.
Medical Science Monitor | 2015
Elif Ağaçayak; Senem Yaman Tunç; Sibel Sak; Serdar Başaranoğlu; Hatice Yüksel; Abdulkadir Turgut; Talip Gül
Background We aimed to measure the levels of inflammatory markers and neopterin in obese and non-obese patients with PCOS by using 2 separate control groups with matching body mass index (BMI). Material/Methods A total of 60 women of reproductive age with (n=30) and without (n=30) PCOS were included in this study. Based on their BMI, patients with PCOS were divided into 2 groups as obese (n=15) and non-obese (n=15) PCOS groups. In addition, 2 BMI-matched control groups were formed. Neopterin, tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), C-reactive protein (CRP), neutrophil-to-lymphocyte ratio (N/L ratio), and vitamin B12 were assessed by complete blood count. Results No significant difference was found between patients with PCOS and control subjects in neopterin, IL-6, TNF-α, and CRP levels. However, N/L ratio levels were significantly higher (p 0.045) and vitamin B12 levels were significantly lower (p 0.033) in patients with PCOS compared to control subjects. No statistically significant difference was found between obese and non-obese patients with PCOS and control subjects in neopterin, IL-6, TNF-α, and N/L ratio levels. However, CRP levels were significantly higher in obese patients with PCOS compared to obese control subjects (p 0.007). Conclusions It can be concluded that inflammatory activity is increased in patients with PCOS, can lead to an increased risk for atherosclerosis, and this increase is not caused by obesity but rather by the polycystic ovary syndrome itself. However, studies with larger sample sizes are needed in this area.
Journal of The Turkish German Gynecological Association | 2012
Muhammet Erdal Sak; Hatice Ender Soydinç; Ali Özler; Mehmet Sıddık Evsen; Abdulkadir Turgut; Sibel Sak; Talip Gül
OBJECTIVE To assess and compare alterations in the morphology and function of platelets occurring in gestational diabetes and healthy pregnancies. MATERIAL AND METHODS A retrospective study was performed of 77 pregnant women: 42 cases with gestational diabetes and 35 healthy controls. The two groups were compared in terms of demographics and platelet parameters derived from complete blood counts. RESULTS The mean platelet volume (p=0.001) and HbA1c (p<0.001) were significantly increased in the patients with gestational diabetes. The mean platelet volume was well correlated with the platelet distribution width (rs=0.404, p<0.001) and the platelet count (rs=0.355, p=0.002). CONCLUSION The mean platelet volume and other platelet parameters may significantly aid the identification of diabetic pregnants at risk for vascular complications. The role and possible clinical relevance of these changes during diabetic pregnancy need to be investigated in further studies.
Dicle Tıp Dergisi | 2009
M. Erdal Sak; Özgür Özkul; Mehmet Sıddık Evsen; Sibel Sak; Osman Evliyaoglu
The articles about various pneumoconiosis in dental technicians who work in inconvenient conditions have been increasing in recent years. Exposure to dust and fume that occur during the dental procedure may play role in pneumoconiosis of dental technicians. A 53 years old male patient conveyed that he has worked in dental prosthesis procedures for 22 years (1968-1990).Environmental asbestosis was not established in the history of the case but there were calcified pleural plaques in the chest x-ray graphy.There were appearance of calcific asbest plaques in many section of thorax CT.A case of pneumoconiosis in dental technician who work in unadequate preventive conditions was reported in this paper. Probably ,exposure to the asbest fibers that occurs during the procedure of dental prosthesis were the main reason for developing calcific pleural lesions.The aim of this study was to investigate the efficacy of occlusion treatment on different age group patients with anisometropic amblyopia. Occlusion treatment was applied to 34 patients, 15 preschool children (age between 4-6 years), and 19 school age children (7-11 years). Daily duration of occlusion was minimum 6 hours. Best corrected visual acuity of patients was measured initially, at the end of 1st, 3rd and 6th months. Data belonging to amblyopia groups was compared with one another and with the controls. Initial visual acuity of two amblyopia groups were similar, however there was a significant difference between the amblyopia groups and the controls (PChest pain is a frequently encountered problem in childhood. In this study we aimed to asses the relationship between exertional chest pain and asthma by using the peek expiratory flow rate measurements. For this study, 64 otherwise healthy children with chest pain (chest pain group), 9-16 years of age (mean 11.9) and 58 healthy (control group), 8-11 years (mean 11.5) were compared with the use of peak flow-meter. Ages, weights, heights, systolic-diastolic blood pressures, pulses recorded. Preexertional and postexertional peak flow measurements (PEFR) at 2, 5 and 10 minutes determined. There was a decrease more than 15% in PEFR measures in 7 (10.9%) of chest pain group and in 1 (1.7%) of control group children (p
Journal of Maternal-fetal & Neonatal Medicine | 2017
Senem Yaman Tunç; Elif Ağaçayak; Sibel Sak; Serdar Başaranoğlu; Neval Yaman Görük; Abdulkadir Turgut; Hayrettin Tay; Evindar Elci; Talip Gül
Abstract Objective: The aim of the present study is to evaluate the effects of the increased number of caesarean deliveries (CDs) in cases of multiple repeat caesarean deliveries (MRCDs) on maternal and neonatal morbidity. Methods: MRCDs admitted to our hospital between January 2013 and September 2014 were analysed retrospectively. A total number of 1133 women were included in the study and were divided into 4 groups. Group 1: second CDs (n = 329); Group 2: third CDs (n = 225); Group 3: fourth CDs (n = 447); Group 4: fifth CDs (n = 132). The clinical, demographic, intraoperative and postoperative data of the patients were registered upon the review of patient files. Results: The differences among the groups were found to be statistically significant in terms of mean maternal age, gravida, APGAR (Activity, Pulse, Grimace, Appearance, Respiration) scores, hospital stay and operation time. In addition, the difference was also statistically significant for severe adhesion, bladder injury and premature birth. No statistically significant difference was observed among the groups with respect to placenta previa, placenta accreta, caesarean hysterectomy, uterine scar rupture. Conclusions: According to our findings, MRCDs seem to increasing the maternal and neonatal morbidity even though they are not life-threatening.
Medical Science Monitor | 2018
Mert Ulaş Barut; Engin Yıldırım; Mehmet Kahraman; Murat Bozkurt; Necat Imirzalioğlu; Ayhan Kubar; Eray Caliskan; Sibel Sak; Tarık Aksu
Background In the present study we retrospectively evaluated the results of outpatients who had an HPV analysis, and present objective evidence for the administration of preventive inoculation in our area. Material/Methods We retrospectively reviewed 532 outpatients who visited a single center between 2012 and 2016 and had an HPV infection analysis. The criteria for inclusion of patients with unhealthy cervix in the study were: erosion, chronic cervicitis, healed lacerations, hypertrophied cervix, and abnormal discharges from the cervix. Results We found that 122 out of 532 patients were infected with HPV, and the rate of multiple infections was 59.0% (72/122). HR-HPV (group 1 carcinogens HPV-16 (18.9%, 23/122), HPV-18 (13.1%, 16/122), HPV- 31 (4.9%, 6/122), HPV-33 (3.3%, 4/122), HPV-35 (7.4.9%/122), HPV-39 (5.7%, 7/122), HPV-45 (5.7%, 7/122), HPV-51 (11.5%, 15/122); Group 3 LR-HPV; HPV-6 (31.1%, 38/122), HPV-11 (26.2%, 32/122), HPV-42 (9.0%, 11/122) and HPV-43 (4.9%, 6/122). In terms of linear-by-linear association test, no significant statistical difference was identified between years. The P value for HPV infection rate on year basis was P>0.05. Conclusions In this hospital-based retrospective analysis, HPV types were found to be similar to HPV types reported in developed countries. We firmly suggest that patients should be informed about the risk of HPV infection at early ages.
journal of Clinical Case Reports | 2016
Elif Ağaçayak; Sibel Sak; Senem Yaman Tunç; Ahmet Yalinkaya; Talip Gül
Unicornuate uterus with a rudimentary horn is a rare anomaly of the female genital system resulting from inco mplete development of one of the mullerian ducts. It might end in grave obstetrical and gynecological complications in the absence of early diagnosis and proper management. A rare case of a full-term pregnancy in a non-communicating rudimentary horn is presented in this paper. A 24-year-old pregnant woman carrying the preliminary diagnosis of placenta percreta was referred to our clinic by reason of vaginal bleeding at a gestational age of 38 weeks. She underwent emergency cesarean section in our clinic, which led to the finding that her condition was not placenta percreta, but a full-term pregnancy in a non-communicating rudimentary horn. The need for a high index of suspicion as well as the use of ultrasonography plays a key role in the early diagnosis of this rare condition. Rudimentary horn pregnancy must be suspected in patients referred with the preliminary diagnosis of placenta percreta.
Journal of Clinical and Experimental Investigations | 2010
M. Erdal Sak; Sibel Sak; Talip Gül
Objectives: To investigate beta-human corionic gonadotropin (β-hCG) levels in cervicovaginal secretions as an early marker for preterm delivery. Methods: The study included 55 patients at 25-36 of gestational weeks with preterm delivery risk factors including a history of preterm labor in a previous pregnancy or history of second trimester abortion. Beta-human chorionic gonadotropin (β-hCG) levels of cervicovaginal secretions were measured in all patients by the radioimmunoassay method using a commercial kit. Results: Preterm delivery was observed in 25 patients and 30 patients gave term delivery. No significant differences were found between preterm and term delivery groups in age, gravidity and parity (P>0.05). APGAR scores and anthropometric measurements of newborns were signifi cantly lower in preterm delivery group (P<0.001). Preterm delivery group had significantly higher cervicovaginal β-hCG levels compared with normal controls (94.7±37.7 vs. 35.5±14.8 mIU/ml, respectively, P<0.001). When 75 mIU/ml value of β-hCG level was taken as cut-off value; the sensitivity of the test was found as 76%, specifity 91.6%, positive predictive value 95.0% and negative predictive value as 79.9%. Conclusion: Concentrations of β-hCG in cervicovaginal secretions may be a useful early biochemical marker to detect preterm. Based on β-hCG levels in cervicovaginal secretions a closer follow-up may decrease some complications of preterm delivery. J Clin Exp Invest 2010; 1(1): 16-20
Journal of Obstetrics and Gynaecology | 2018
Hacer Uyanikoglu; Muhammet Sak; Faik Tatli; Nese Gul Hilali; Sibel Sak; Adnan Incebiyik; Mert Ulaş Barut; Ozcan Erel; Ataman Gonel
Abstract The pathogenesis of placenta percreta (PP) is not very well known. This study was designed to analyse the oxidative stress (OS), the thiol/disulphide balance, and ischaemia-modified albumin (IMA) the women with PP. The study included 38 pregnant women with PP and 40 similarly aged healthy pregnant women in their third trimester of gestation. We measured the IMA, native and total thiols, and disulphide concentrations in the maternal sera of all of the participating women. The IMA levels were higher and the native and total thiols were lower in the PP group than in the control group. However, there was no statistical significance with respect to the thiol/disulphide balance between the two groups. The results of this study suggest that an increase in the ischaemia and OS and a decrease in the antioxidant status may contribute to the pathogenesis of PP. Impact statement What is already known on this subject? Placenta percreta (PP) is a serious complication of pregnancy. Although there are several studies investigating the pathophysiological mechanism of PP, whether the pathology results from a lack of decidua or from the over-invasiveness of trophoblasts remains controversial. The pathology of PP is poorly understood. What do the results of this study add? This prospective study has shown an increased ischaemia modified albumin (IMA) and a decreased antioxidant capacity in the patients with placenta percreta. The results from 38 women with PP suggest that the serum concentrations of IMA and the oxidative stress parameters may be able to predict PP in cases of uncertainty. What are the implications of these findings for clinical practice and/or further research? The implication of these findings shed light on understanding the pathogenesis of PP for further research.
Journal of Maternal-fetal & Neonatal Medicine | 2018
Sibel Sak; Mert Ulaş Barut; Hakim Celik; Adnan Incebiyik; Elif Ağaçayak; Hacer Uyanikoglu; Adnan Kirmit; Muhammet Sak
Abstract Objective: The aim of this study was to investigate the maternal serum concentrations of copper (Cu) and ceruloplasmin (CP) in patients with mild preeclampsia, severe preeclampsia, hemolysis, elevated liver enzymes, and low platelet count (HELLP) syndrome, and to determine their association with the severity of the disease. Methods: This study was carried out at the largest tertiary care health center in the southeast region in Turkey and Department of Obstetrics and Gynecology, Dicle University Hospital. A total of 179 pregnant women, including 58 healthy pregnant women and 71 mild preeclampsia, 26 severe preeclampsia, and 24 HELLP syndrome cases classified according to the American College of Obstetricians and Gynecologists’ 2013 guidelines were included in this prospective study. Blood samples were taken from all the pregnant women to evaluate the serum Cu and CP levels. The Cu level was determined via atomic absorption/emission spectroscopy, while the serum CP level was assessed with a nephelometric assay using an automatic image analyzer. Spearman’s rank correlation tests were used to determine the correlations between the serum levels of the antioxidative markers and the preeclampsia severity. Results: The mean ± SD of the Cu was 81.2 ± 11.84 µg/dl in the mild preeclampsia cases and 160.2 ± 20.89 µg/dl in the severe preeclampsia cases (p < .001). The mean ± SD of the CP was 33.0 ± 4.81 mg/dl in the mild preeclampsia cases and 65.3 ± 9.17 mg/dl in the severe preeclampsia cases (p < .001). The Cu and CP levels were significantly higher in the patients with HELLP syndrome, which is an advanced and more severe form of severe preeclampsia, than in the mild and severe preeclampsia patients (p < .001 and p < .001, respectively). Therefore, the serum Cu and CP levels were correlated with the severity of preeclampsia (r = 859, p < .001 and r = 786, p < .001, respectively). In addition, there was a positive correlation between the serum Cu and CP levels and the systolic and diastolic blood pressure values and aspartate amino transferase levels (AST), and a negative correlation between the serum Cu and CP levels and the platelet count. Conclusion: This was the first study in which the ceruloplasmin and Cu levels were investigated in HELLP syndrome patients. When considering the results obtained in the present study, there were significant relationships between the Cu, CP levels which are the markers of oxidative stress and the preeclampsia severity.