Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 13 of 13
Full-Text Articles in Medicine and Health Sciences
Impact Of Male Age On The Outcome Of Assisted Reproductive Technology Cycles Using Donor Oocytes, Eyup Duran, D. Dowling-Lacey, S. Bocca, L. Stadtmauer, S. Oehninger
Impact Of Male Age On The Outcome Of Assisted Reproductive Technology Cycles Using Donor Oocytes, Eyup Duran, D. Dowling-Lacey, S. Bocca, L. Stadtmauer, S. Oehninger
Eyup Hakan Duran
This study assessed the influence of the age of the male partner on the outcome of oocyte donation cycles. A total of 408 couples participating in 519 consecutive anonymous oocyte donation cycles were examined. Main outcome measures were fertilization rate, embryo quality, clinical pregnancy, implantation, miscarriage and live birth rates, as well as the total reproductive potential, which estimates the outcome from fresh and cryopreserved-thawed embryo transfers. A total of 241 cycles resulted in clinical pregnancy (48.5% of transfers). The mean embryo score for transferred embryos (ESTE) was higher in cycles resulting in pregnancy (P=0.003). Semen volume (P<0.001), sperm …
Sperm Dna Quality Predicts Intrauterine Insemination Outcome: A Prospective Cohort Study, Eyup Duran, M. Morshedi, S. Taylor, S. Oehninger
Sperm Dna Quality Predicts Intrauterine Insemination Outcome: A Prospective Cohort Study, Eyup Duran, M. Morshedi, S. Taylor, S. Oehninger
Eyup Hakan Duran
BACKGROUND: We aimed to investigate whether sperm DNA quality may predict intrauterine insemination (IUI) outcome. METHODS: The study was designed in a prospective cohort fashion, at a tertiary centre for reproductive medicine. A total of 119 patients underwent 154 cycles of IUI. Parameters related to demography, cycle management and semen sample used for IUI were evaluated. Conventional semen parameters, morphology (strict criteria), sperm DNA fragmentation and stability [evaluated by terminal deoxynucleotidyl transferase-mediated dUDP nick-end labelling (TUNEL) and acridine orange staining under both acid and acid + heat denaturing conditions respectively] were measured. The main outcome measure was clinical pregnancy, defined …
The Effect Of Age On The Expression Of Apoptosis Biomarkers In Human Spermatozoa, A. Colin, G. Barroso, N. Gomez-Lopez, Eyup Duran, S. Oehninger
The Effect Of Age On The Expression Of Apoptosis Biomarkers In Human Spermatozoa, A. Colin, G. Barroso, N. Gomez-Lopez, Eyup Duran, S. Oehninger
Eyup Hakan Duran
OBJECTIVE: To evaluate the impact of age on the expression of apoptotic biomarkers in human spermatozoa. DESIGN: Cross sectional, prospective study. SETTING: Academic centers. PATIENT(S): Healthy volunteers with proven fertility, stratified by age (n = 25, range: 20-68 years). INTERVENTION(S): Examination of serum hormone levels and basic semen parameters, and assessment of early (plasma membrane translocation of phosphatidylserine) and late (DNA fragmentation) sperm apoptotic markers by flow cytometry (using Annexin-V binding and terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling). MAIN OUTCOME MEASURE(S): Apoptosis markers. RESULT(S): Advancing male age was significantly and positively correlated with Annexin-V binding results. Although not significant, …
Endometrial Response To Unopposed Estrogens Remains Unaltered In Patients With Chronic Renal Failure Receiving Hemodialysis, M. Ergeneli, Eyup Duran, H. Zeyneloglu, B. Demirhan, M. Erdogan
Endometrial Response To Unopposed Estrogens Remains Unaltered In Patients With Chronic Renal Failure Receiving Hemodialysis, M. Ergeneli, Eyup Duran, H. Zeyneloglu, B. Demirhan, M. Erdogan
Eyup Hakan Duran
Most patients with chronic renal failure who are on maintenance hemodialysis are anovulatory and have menstrual abnormalities. This study was designed to determine the prevalence of organic causes of abnormal uterine bleeding in this group of patients exposed to unopposed estrogens. Eighteen patients with chronic renal failure and abnormal uterine bleeding underwent vacuum curettage. The histopathologic findings were compared with a group of 154 premenopausal women who had abnormal uterine bleeding without detectable organic causes. Excluding patients with secretory and atrophic endometrium, only 2 of 8 patients (25%) with chronic renal failure had endometrial lesions while 44 of 131 patients …
Assessment Of Ovarian Reserve With Anti-Mullerian Hormone: A Comparison Of The Predictive Value Of Anti-Mullerian Hormone, Follicle-Stimulating Hormone, Inhibin B, And Age, R. Riggs, Eyup Duran, M. Baker, T. Kimble, E. Hobeika, L. Yin, L. Matos-Bodden, B. Leader, L. Stadtmauer
Assessment Of Ovarian Reserve With Anti-Mullerian Hormone: A Comparison Of The Predictive Value Of Anti-Mullerian Hormone, Follicle-Stimulating Hormone, Inhibin B, And Age, R. Riggs, Eyup Duran, M. Baker, T. Kimble, E. Hobeika, L. Yin, L. Matos-Bodden, B. Leader, L. Stadtmauer
Eyup Hakan Duran
OBJECTIVE: The objective of this study was to evaluate basal anti-Mullerian hormone as a marker for ovarian responsiveness to fertility treatment. STUDY DESIGN: Frozen basal menstrual cycle day 3 serum samples were evaluated retrospectively for anti-Mullerian hormone, inhibin B, and follicle-stimulating hormone levels in 123 in vitro fertilization cycles (93 patients) and compared with in vitro fertilization records. RESULTS: Anti-Mullerian hormone values correlated the best with the number of retrieved oocytes (r = 0.539; P .05), luteinizing hormone (P > .05), and estradiol (r = -0.190; P .05), luteinizing hormone (P > .05), and estradiol (r = -0.190; P .05). Similarly, for …
The Impact Of A Gonadotropin-Releasing Hormone Antagonist On Gonadotropin Ovulation Induction Cycles In Women With Polycystic Ovary Syndrome: A Prospective Randomized Study, L. Stadtmauer, A. Sarhan, Eyup Duran, H. Beydoun, S. Bocca, B. Pultz, S. Oehninger
The Impact Of A Gonadotropin-Releasing Hormone Antagonist On Gonadotropin Ovulation Induction Cycles In Women With Polycystic Ovary Syndrome: A Prospective Randomized Study, L. Stadtmauer, A. Sarhan, Eyup Duran, H. Beydoun, S. Bocca, B. Pultz, S. Oehninger
Eyup Hakan Duran
OBJECTIVE: To evaluate the effect of the gonadotropin-releasing hormone antagonist Ganirelix on gonadotropin ovulation induction (OI) in patients with polycystic ovary syndrome (PCOS). DESIGN: Prospective, randomized, controlled study. SETTING: Academic infertility center. PATIENT(S): Ninety-eight anovulatory women with PCOS undergoing 154 gonadotropin OI cycles. INTERVENTION(S): Patients were treated with recombinant FSH alone (group 1) or in conjunction with Ganirelix when the leading follicle was >/=13 mm (group 2) versus from the beginning of stimulation (group 3), followed by IUI. MAIN OUTCOME MEASURE(S): Per cycle clinical pregnancy rate (CPR), live-birth rate (LBR), total gonadotropin dose, days of stimulation, serum LH and peak …
Desmoid Tumor Of The Vulva. A Case Report, M. Ergeneli, B. Demirhan, Eyup Duran
Desmoid Tumor Of The Vulva. A Case Report, M. Ergeneli, B. Demirhan, Eyup Duran
Eyup Hakan Duran
BACKGROUND: Extraabdominal desmoid tumors are very rare; primary vulvar desmoid tumors are even rarer. CASE: A desmoid tumor involving the right labium majus, extending upward along the vaginal wall, was excised completely. CONCLUSION: These rare tumors, which may enlarge rapidly during pregnancy, are difficult to diagnose before surgery.
Vaginectomy And Laparoscopically Assisted Vaginal Hysterectomy As Adjunctive Surgery For Female-To-Male Transsexual Reassignment: Preliminary Report, M. Ergeneli, Eyup Duran, G. Ozcan, M. Erdogan
Vaginectomy And Laparoscopically Assisted Vaginal Hysterectomy As Adjunctive Surgery For Female-To-Male Transsexual Reassignment: Preliminary Report, M. Ergeneli, Eyup Duran, G. Ozcan, M. Erdogan
Eyup Hakan Duran
OBJECTIVE: Reassignment surgery of the female-to-male transsexual is a rarely performed surgical procedure that should involve a gynecologist's consultation and expertise. This study examines the experience with this type of surgery at Baskent University Hospital, Ankara, Turkey, from the gynecologists' point of view. STUDY DESIGN: Eight patients underwent laparoscopically assisted vaginal hysterectomy, bilateral salpingo-oophorectomy and total vaginectomy, followed by phallic construction. Patients were followed up for 9 to 30 months post-surgery. RESULTS: The average operative time for total vaginectomy and laparoscopically assisted vaginal hysterectomy and bilateral salpingo-oophorectomy was 2 h and 20 min. The estimated average blood loss was 250 …
A Study Of The Cost, Accuracy, And Benefits Of 3-Dimensional Sonography Compared With Hysterosalpingography In Women With Uterine Abnormalities, S. Bocca, S. Oehninger, L. Stadtmauer, J. Agard, Eyup Duran, A. Sarhan, S. Horton, A. Abuhamad
A Study Of The Cost, Accuracy, And Benefits Of 3-Dimensional Sonography Compared With Hysterosalpingography In Women With Uterine Abnormalities, S. Bocca, S. Oehninger, L. Stadtmauer, J. Agard, Eyup Duran, A. Sarhan, S. Horton, A. Abuhamad
Eyup Hakan Duran
OBJECTIVES: We conducted a prospective blinded study to evaluate the costs, accuracy, risks, and benefits of 3-dimensional (3D) transvaginal sonography compared to hysterosalpingography. METHODS: A total of 101 women aged 26 to 44 years with evidence of uterine anomalies were enrolled. All participants had routine hysterosalpingography as part of their infertility evaluation as well as 3D transvaginal sonography as part of the study. Surgical findings were used as the standard for final diagnosis. RESULTS: A total of 6 normal uteri and 119 uterine anomalies were classified: 30 congenital uterine anomalies (3 arcuate, 1 unicornuate, 4 bicornuate, 2 didelphys, and 20 …
Malignant Mixed Mesodermal Tumor Arising In A Benign Cystic Teratoma, M. Ergeneli, B. Demirhan, Eyup Duran, M. Coskun
Malignant Mixed Mesodermal Tumor Arising In A Benign Cystic Teratoma, M. Ergeneli, B. Demirhan, Eyup Duran, M. Coskun
Eyup Hakan Duran
The occurrence of sarcoma in a benign cystic teratoma is very rare. We report the first poorly differentiated, malignant mixed mesodermal tumor with a component of rhabdomyosarcoma to arise in a benign cystic teratoma of the ovary. The tumor was staged as FIGO IC due to capsule invasion. Although combination chemotherapy of cisplatin, ifosfamide and mesna, was instituted, the disease took a rapidly progressive course. After an unusual metastasis to the scapula was detected, the patient deteriorated and died in the forth postoperative month.
A Logistic Regression Model Including Dna Status And Morphology Of Spermatozoa For Prediction Of Fertilization In Vitro, Eyup Duran, T. Gurgan, S. Gunalp, M. Enginsu, H. Yarali, A. Ayhan
A Logistic Regression Model Including Dna Status And Morphology Of Spermatozoa For Prediction Of Fertilization In Vitro, Eyup Duran, T. Gurgan, S. Gunalp, M. Enginsu, H. Yarali, A. Ayhan
Eyup Hakan Duran
To determine predictive values of routine semen analysis, sperm morphology evaluation using strict criteria and DNA status for in-vitro fertilization (IVF), 66 consecutive couples undergoing IVF in a university hospital IVF programme were prospectively investigated. Semen samples from 66 men were evaluated by routine semen analysis, morphology evaluation using strict criteria and acridine orange staining for determination of DNA status. A new technique is described for acridine orange scoring which consisted of evaluation of two smears per case, with and without heat treatment. Resistance to heat-provoked denaturation was determined by the difference between two evaluations. A logistic regression model was …
Extragenital Malignant Mixed Mesodermal Tumor: Case Report And Review Of The Literature, M. Ergeneli, B. Demirhan, Eyup Duran, M. Erdogan
Extragenital Malignant Mixed Mesodermal Tumor: Case Report And Review Of The Literature, M. Ergeneli, B. Demirhan, Eyup Duran, M. Erdogan
Eyup Hakan Duran
Malignant mixed mesodermal tumors rarely occur in extragenital sites. An 80-year-old patient presented with a malignant mixed mesodermal tumor, consisting of papillary serous adenocarcinoma and chondrosarcomatous components. The patient refused further treatment following surgery and died of disease 2.5 months later. Based on the present case and a review of the literature, primary extragenital malignant mixed mesodermal tumors prove to be rare but highly malignant neoplasms. Further data is yet to be gathered in order to determine the exact origin and behavior of these tumors.
Somatic Cell Apoptosis Markers And Pathways In Human Ejaculated Sperm: Potential Utility As Indicators Of Sperm Quality, S. Taylor, S. Weng, P. Fox, Eyup Duran, M. Morshedi, S. Oehninger, S. Beebe
Somatic Cell Apoptosis Markers And Pathways In Human Ejaculated Sperm: Potential Utility As Indicators Of Sperm Quality, S. Taylor, S. Weng, P. Fox, Eyup Duran, M. Morshedi, S. Oehninger, S. Beebe
Eyup Hakan Duran
In this study we extended earlier work to determine whether sperm respond to somatic cell apoptotic stimuli and whether apoptotic phenotypes are significant indicators of human sperm quality. We evaluated ejaculated sperm from fertile donors and subfertile patients following purification of fractions of high and low motility. In unstimulated conditions, caspase enzymatic activity was higher in motile fractions from subfertile patients than in donors, and was higher in low motility fractions from both groups. Staurosporine, but not a Fas ligand or H2O2, significantly increased caspase activity, but only in high motility fractions. Procaspase-3, -7 and -9 and low levels of …