N Tasdemir

Dr. Zekai Tahir Burak Women's Health Research and Education Hospital, Engüri, Ankara, Turkey

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Publications (6)17.43 Total impact

  • Fertility and Sterility 09/2009; 92(3). · 4.30 Impact Factor
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    ABSTRACT: Postmenopausal women are at an increased risk of cardiovascular disease and metabolic syndrome as many risk factors are aggravated by menopause. Elevated levels of homocysteine, triglyceride and asymmetric dimethylarginine (ADMA) have been recognized as risk factors for metabolic syndrome. The present study aimed to investigate the effect of transdermal estrogen treatment on serum levels of atherogenic amino acids, homocysteine, triglyceride, high density lipoprotein (HDL) cholesterol and ADMA in women with surgical menopause. A prospective study was conducted in 85 surgically menopausal Turkish women at the Department of Menopause of Dr Zekai Tahir Burak Women's Health Research and Education Hospital between March 2007 and March 2008. Subjects were divided into two groups: a treatment group (Group 1) and control (Group 2). Group 1 (n = 46) received transdermal estrogen while Group 2 (n = 39) received no treatment. Body mass index (BMI) and levels of serum homocysteine, ADMA, triglyceride and HDL cholesterol were analyzed postoperatively at the first visit (baseline) and 6th months. The two groups did not differ in age, baseline BMI and levels of ADMA, homocysteine and triglyceride. In Group 1, values of serum ADMA, homocysteine, triglyceride and HDL cholesterol levels were not different at baseline and at the 6-month visit (p = 0.996, p = 0.564, p = 0.113 and p = 0.173, respectively). On the other hand, the baseline and the 6th month measurements of serum ADMA, homocysteine and HDL cholesterol levels were significantly different in Group 2 (p = 0.001, p = 0.001, and p = 0.023, respectively). Transdermal estrogen treatment has a protective effect against the risk factors of metabolic syndrome (homocysteine, ADMA, HDL cholesterol) in surgically menopausal patients who have undergone surgery in the early premenopausal period.
    Climacteric 08/2009; 13(1):55-62. · 2.24 Impact Factor
  • Maturitas 05/2009; 63. · 2.86 Impact Factor
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    ABSTRACT: Obesity causes the specific upregulation of proinflammatory cytokines and chemokines. One of these cytokines, IL-18, has a well-known association with obesity. Our aim in this study was to test the effect of serum and intrafollicular IL-18 and IL-18 binding protein (BP) levels on in vitro fertilization outcomes in obese, overweight, and non-obese patients. Serum and pooled follicular fluid levels of IL-18, IL-18BP, and the IL-18/IL-18BP ratios were evaluated in 21 non-obese (body mass index [BMI] <25), 37 overweight (25<or=BMI<30), and 24 obese (BMI>or=30) patients undergoing in vitro fertilization. IL-18 and IL-18BP levels in serum and follicular fluid did not change with obesity. There was no correlation among serum intrafollicular IL-18, IL-18BP levels, and the number of oocytes retrieved and transferred, embryo grades or pregnancy ratios. The levels of serum and intrafollicular IL-18, IL-18BP, and the IL-18/IL-18BP ratios do not seem to be related to in vitro fertilization outcomes in obese, overweight, and non-obese patients.
    Journal of Reproductive Immunology 12/2008; 79(2):211-4. · 2.37 Impact Factor
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    ABSTRACT: Incest is a taboo and a neglected social problem. Especially in the adolescent population, which is a very sensitive period of development, it becomes harder for the patients to share their secret with either legal or health authorities. Sometimes pregnancy becomes the only vehicle to uncover this secret. There is a contradiction whether their pregnancies should continue or not. Some authors believe abortion is the best choice for the victim to pull herself together, whereas others advocate that it is just another trauma that will not solve the problem but merely hide it. In this report, three paternal incest cases and their pregnancies will be presented. The aim is not only to discuss the different points of view regarding the management of these pregnancies but also to make the clinicians think about the different choices before making a decision.
    Reproductive biomedicine online 02/2008; 17 Suppl 3:52-4. · 2.68 Impact Factor
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    ABSTRACT: The aim of this study was to investigate follicular fluid vascular endothelial growth factor (VEGF) and tumour necrosis factor alpha (TNFalpha) concentrations in endometriosis, and their effect on the outcome of intracytoplasmic sperm injection (ICSI). A prospective study was performed among patients who had either a laparoscopic diagnosis of endometriosis (n = 48) or who had normal laparoscopic findings with unexplained infertility (n = 43). The number of gonadotrophin units, peak oestradiol concentrations, number of oocytes retrieved, fertilization, cleavage and pregnancy rates, and number of embryos transferred, were the main outcome measurements. There was no difference in these parameters between the two study groups. Significantly higher concentrations of VEGF were found in the endometriosis group (P = 0.031), but there was no difference in TNFalpha concentrations. No relationship was found between VEGF and TNFalpha concentrations and ICSI outcome. Despite a higher concentration of intrafollicular VEGF in the endometriosis group, it was concluded that this parameter had no predictive value with respect to ICSI outcome. In addition, intrafollicular TNFalpha concentrations were not different in the endometriosis group and there was no relationship between VEGF or TNFalpha concentrations and the outcomes measured.
    Reproductive biomedicine online 10/2007; 15(3):316-20. · 2.98 Impact Factor