Aytekin Tokmak

Dr. Aytekin Tokmak

orcid

Research Focus & Metrics

Academic Career Length

17Years (2010-Present)

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

Representative Publications

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13 January 2019 in Gynecological Endocrinology
Verified
Journal Article
Closed access
ŞÖŞule Özel
Şule Özel
ATAytekin Tokmak
Aytekin Tokmak
OAOsman Aykut
Osman Aykut
AAAyla Aktulay
Ayla Aktulay
NHNecati Hançerlioğulları
Necati Hançerlioğulları
YEYaprak Engin-Üstün
Yaprak Engin-Üstün
Objectives: Phthalates and bisphenol-A (BPA) may pose a risk for human reproduction. Adverse effects of endocrine disturbing chemicals on animal ovaries have been proposed previously. This study was designed to measure the concentrations of phthalate diesters or their metabolites in serum to evaluate their relevance with primary ovarian insufficiency (POI). Methods: This study was designed as a cross sectional and case-control study. The study group consisted of 30 women diagnosed with POI whereas 30 healthy fertile women without any systemic diseases were recruited as a control group. The two groups were matched with respect to age and body mass index and tobacco smoking. Serum phthalate diesters and BPA levels were measured in both groups. Results: The mean serum level of mono-buthyl phthalate (MBP) was statistically significantly higher in POI group than in control group (8.45 ± 4.2 vs. 5.0 ± 3.47 ng/mL, p < .001). Other serum phthalate metabolites and BPA concentrations were similar among the groups. Conclusions: Serum levels of BPA and phthalate metabolites are increased in women diagnosed with POI. However, MBP is the most significant one among them. MBP may be a contributing risk factor in the development of POI.

1 June 2016 in Reproductive Sciences
Verified
Journal Article
Closed access
ATAytekin Tokmak
Aytekin Tokmak
GYGulçin Yildirim
Gulçin Yildirim
EÖEfser Öztaş
Efser Öztaş
SASerra Akar
Serra Akar
KEKudret Erkenekli
Kudret Erkenekli
MUMustafa Uğur
Mustafa Uğur

28 September 2015 in The Journal of Maternal-Fetal & Neonatal Medicine
Verified
Journal Article
Closed access
PDF file
HTHakan Timur
Hakan Timur
ATAytekin Tokmak
Aytekin Tokmak
GTGülenay G. Türkmen
Gülenay G. Türkmen
HIHasan Ali İnal
Hasan Ali İnal
DUDilek Uygur
Dilek Uygur
NDNuri Danışman
Nuri Danışman
Pregnancy outcome in patients with ankylosing spondylitis. . ???aop.label???. doi: 10.3109/14767058.2015.1089432

29 December 2014 in Journal of Obstetrics and Gynaecology
Verified
Journal Article
Closed access
HTH. O. Topçu
H. O. Topçu
KKK. Kokanalı
K. Kokanalı
AGA. İ. Güzel
A. İ. Güzel
ATAytekin Tokmak
Aytekin Tokmak
SES. Erkılınç
S. Erkılınç
MDM. Doğanay
M. Doğanay
This study assessed the risk factors for poor clinical outcomes in patients with tubo-ovarian abscess (TOA). Patients managed with medical therapy and discharged within 7 days without complications constituted the favourable prognosis group (n = 22), whereas those who were managed surgically or discharged after 7 days of antibiotic therapy constituted the poor prognosis group (n = 87). Variables including age, gravidity, number of dilation and curettage procedures, caesarean delivery, smoking status, serum C-reactive protein levels, serum white blood count, body temperature, abscess diameter, presence of an intrauterine device (IUD), duration of IUD placement and length of hospitalisation were evaluated to assess their relationship with the clinical prognosis of TOA. Abscess diameter of ≥ 6 cm was a significant parameter that increased the risk eightfold for poor prognosis. No significant differences were observed regarding the other variables.

26 April 2018 in Geburtshilfe und Frauenheilkunde
Verified
Journal Article
Open access
PDF file
BTBurcu Budak Timur
Burcu Budak Timur
HTHakan Timur
Hakan Timur
ATAytekin Tokmak
Aytekin Tokmak
HIHatice Isik
Hatice Isik
EEElif Gul Yapar Eyi
Elif Gul Yapar Eyi
Introduction This study aimed to investigate the influence of obesity on pregnancy complications and neonatal outcomes in diabetic and nondiabetic women. Materials and Methods This retrospective case control study was conducted on 1193 pregnant women and their neonates at a tertiary level maternity hospital between March 2007 and 2011. The pregnant women were classified into 2 groups according to the presence of diabetes mellitus. Six hundred and seven patients with gestational diabetes or pregestational diabetes formed the diabetic group (study group) and 586 patients were in the nondiabetic group (control group). Demographic characteristics, body mass index, gestational weight gain, obstetric history, smoking status, type of delivery, gestational ages, pregnancy complications, neonatal outcomes were recorded for each patient. Multivariable logistic regression analysis was performed to evaluate the effect of obesity and diabetes on the pregnancy complications and neonatal outcomes. Results The mean age and pre-pregnancy body mass indices of women with diabetes mellitus were significantly higher than the control groupʼs (p < 0.001). Gestational weight gain and number of smokers were similar among the groups. Multiparity and obesity were more prevalent in the diabetic group compared to controls (both p < 0.001). Although gestational age at birth was earlier in the diabetic group, birth weights were higher in this group than in the control group (both p < 0.001). Cesarean delivery rates, the incidence of macrosomia, and neonatal intensive care unit admission rates were significantly higher in the diabetes group both with normal and increased body mass index (all p < 0.001). However, adverse pregnancy outcomes were comparable between the groups (p = 0.279). Multivariable logistic regression analysis showed that obesity is a significant risk factor for pregnancy complications (OR = 1.772 [95% CI, 1.283 – 2.449], p = 0.001) but not for adverse neonatal outcomes (OR = 1.068 [95% CI, 0.683 – 1.669], p = 0.773). Conclusion While obesity increases risk of developing a pregnancy complication, diabetes worsens neonatal outcomes.

25 November 2015 in Clinical Endocrinology
Verified
Journal Article
Closed access
PDF file
SOSibel Ozler
Sibel Ozler
EOEfser Oztas
Efser Oztas
ATAytekin Tokmak
Aytekin Tokmak
MEMerve Ergin
Merve Ergin
EIEsra Isci
Esra Isci
NYNafiye Yılmaz
Nafiye Yılmaz