Elif Ağaçayak

Prof. Dr. Elif Ağaçayak

orcid

Research Focus & Metrics

Academic Career Length

13Years (2014-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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30 September 2016 in Journal of Turkish Society of Obstetric and Gynecology
Verified
Journal Article
Open access
EAElif Ağaçayak
Elif Ağaçayak
NGNeval Yaman Görük
Neval Yaman Görük
HKHakan Küsen
Hakan Küsen
STSenem Yaman Tunç
Senem Yaman Tunç
SBSerdar Başaranoğlu
Serdar Başaranoğlu
TGTalip Gül
Talip Gül
The aim of this study was to elucidate the etiology and treatment of primary ovarian insufficiency, which is of unknown cause in 95% of the cases. Thirty patients aged 18-40 years who presented to Dicle University Faculty of Medicine Clinic of Obstetrics and Gynecology between June 2012 and January 2014 and were diagnosed as having primary ovarian insufficiency based on their clinical and endocrinologic data, and 30 healthy controls were included in this study. No significant differences were found between patients with primary ovarian insufficiency and control subjects in demographic data and lipid profile levels, thyroid- stimulating hormone, prolactin, and glucose. However, the neutrophil to lymphocyte ratio and levels of follicle-stimulating hormone, luteinizing hormone, total antioxidant status, total oxidant status, and oxidative stress index were significantly higher in patients with primary ovarian insufficiency than in control subjects. In the correlation analysis, follicle-stimulating hormone exhibited a positive correlation with total oxidant status, oxidative stress index, and the neutrophil to lymphocyte ratio (r=0.573** p<0.001, r=0.584** p<0.001, r=0.541 p<0.001, respectively) and correlated negatively with total antioxidant status (r=-0.437** p<0.001). The neutrophil to lymphocyte ratio, total oxidant status, and oxidative stress index levels are elevated in primary ovarian insufficiency. Therefore, anti-oxidative and anti-inflammatory treatment might be administered to patients in the early stage of primary ovarian insufficiency. However, larger studies are needed to clarify whether these elevated levels are a cause or a consequence of primary ovarian insufficiency.

18 October 2016 in Journal of Ovarian Research
Verified
Journal Article
Open access
PDF file
MGMehmet Gokcu
Mehmet Gokcu
KGKemal Gungorduk
Kemal Gungorduk
OAOsman Aşıcıoğlu
Osman Aşıcıoğlu
NCNilufer CETINKAYA
Nilufer CETINKAYA
TGTayfun Güngör
Tayfun Güngör
AKAteş Karateke
Ateş Karateke
The optimal surgical management and staging of borderline ovarian tumors (BOTs) are controversial. Institutions have different surgical approaches for the treatment of BOTs. Here, we performed a retrospective review of clinical characteristics, surgical management and surgical outcomes, and sought to identify variables affecting disease-free survival (DFS) and overall survival (OS) in patients with BOTs. A retrospective review of ten gynecological oncology department databases in Turkey was conducted to identify patients diagnosed with BOTs. The effects of type of surgery, age, stage, surgical staging, complete versus incomplete staging, and adjuvant chemotherapy were examined on DFS and OS. In total, 733 patients with BOTs were included in the analysis. Most of the staged cases were in stage IA (70.4 %). In total, 345 patients underwent conservative surgeries. Recurrence rates were similar between the conservative and radical surgery groups (10.5 % vs. 8.7 %). Furthermore we did not find any difference between DFS (HR = 0.96; 95 % confidence interval, CI = 0.7–1.2; p = 0.576) or OS (HR = 0.9; 95 % CI = 0.8–1.1; p = 0.328) between patients who underwent conservative versus radical surgeries. There was also no difference in DFS (HR = 0.74; 95 % CI = 0.8–1.1; p = 0.080) or OS (HR = 0.8; 95 % CI = 0.7–1.0; p = 0.091) between complete, incomplete, and unstaged patients. Furthermore, receiving adjuvant chemotherapy (CT) for tumor stage ≥ IC was not an independent prognostic factor for DFS or OS. Patients undergoing conservative surgery did not show higher recurrence rates; furthermore, survival time was not shortened. Detailed surgical staging, including lymph node sampling or dissection, appendectomy, and hysterectomy, were not beneficial in the surgical management oF BOTs.

1 January 2015 in Medical Science Monitor
Verified
Journal Article
Open access
PDF file
TGTalip Gul
Talip Gul
EAElif Ağaçayak
Elif Ağaçayak
STSenem Yaman Tunc
Senem Yaman Tunc
SSSibel Sak
Sibel Sak
SBSerdar Basaranoglu
Serdar Basaranoglu
ATAbdulkadir Turgut
Abdulkadir Turgut
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). 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. 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). 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.

1 June 2015 in Drug Design, Development and Therapy
Verified
Journal Article
Open access
PDF file
EAElif Ağaçayak
Elif Ağaçayak
SBSerdar Basaranoglu
Serdar Basaranoglu
STSenem Yaman Tunc
Senem Yaman Tunc
IKİbrahim Kaplan
İbrahim Kaplan
OEOsman Evliyaoglu
Osman Evliyaoglu
FFFatih Mehmet Findik
Fatih Mehmet Findik
Introduction: The aim of this study was to investigate whether estradiol (E2), E2 combined with progesterone (Prog) (E2/Prog), and genistein (Gen) treatment had antioxidative and antihyperlipidemic effects in the plasma of ovariectomized (OVX) rats. Materials and methods: Adult female Sprague–Dawley rats were divided into five groups. Rats in all groups, except for those in a sham group, underwent bilateral ovariectomy under general anesthesia. The groups were as follows: sham group; control OVX group; group treated with estrogen (0.014 mg/kg 17-β E2); group treated with a combination of E2 and Prog (0.014 mg/kg 17-β E2 plus 0.028 mg/kg drospirenone), and group treated with Gen (10 mg/kg/day). Plasma of rats of each treatment group was analyzed to determine the total antioxidant status, total oxidant status, paraoxonase activity, lipid profile, high-density lipoprotein (HDL-chol), low-density lipoprotein (LDL-chol), total cholesterol (Total-C), triacylglycerols, lipoprotein (a), and oxidative stress index. Results: Plasma Total-C levels and body weight increased in all the OVX groups compared with the sham group (P<0.005). The group treated with E2 had significantly elevated total oxidant status, oxidative stress index, LDL-chol, and Total-C compared with the control group (P<0.005). Gen treatment might lead to lower LDL-chol and Total-C levels compared with E2 treatment. Conclusions: Gen treatment might be preferred to E2 treatment for treatment of menopausal symptoms in patients at risk for cardiovascular diseases. However, considering the small sample size of this study, larger studies are needed in this area.

2 February 2016 in Journal of Obstetrics and Gynaecology Research
Verified
Journal Article
Closed access
PDF file
STSenem yaman tunc
Senem yaman tunc
EAElif Ağaçayak
Elif Ağaçayak
SBSukru Budak
Sukru Budak
NTNurettin Tunc
Nurettin Tunc
MİMEHMET SAİT İÇEN
MEHMET SAİT İÇEN
TGTalip Gul
Talip Gul

5 December 2018 in Proceedings
Verified
Conference Paper
Open access
PDF file
EOEbru GOKALP OZKORKMAZ
Ebru GOKALP OZKORKMAZ
Fırat AşırFırat Aşır
Fırat Aşır
SBSureyya Ozdemir Basaran
Sureyya Ozdemir Basaran
EAElif Ağaçayak
Elif Ağaçayak
FSFirat Sahin
Firat Sahin
EDEngin Deveci
Engin Deveci
Anti-apoptotic Bcl-2 and proapoptotic Bax genes are the most significant genes that are involved in the regulation of apoptosis. Abnormal apoptotic activity in preeclampsia and gestational diabetes is caused by dysregulation of these genes. In this study; we examined Bcl-2 and Bax protein expressions using immunohistochemical techniques in human placental tissue samples from cases of gestational diabetes (n: 20) and preeclampsia (n: 20). It was observed that Bax expression showed positive reaction compared to Bcl-2 expression so; Bax protein was thought to be an effective marker in determining apoptotic changes in placentas with gestational diabetes and preeclampsia.