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Dive into the research topics where Sadiye Tuzcu is active.

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Featured researches published by Sadiye Tuzcu.


Journal of Endocrinological Investigation | 2003

Is hyperprolactinemia associated with insulin resistance in non-obese patients with polycystic ovary syndrome?

Mithat Bahceci; Alpaslan Tuzcu; Selen Bahceci; Sadiye Tuzcu

Insulin resistance is common in polycystic ovary syndrome (PCOS). Moderate elevations in serum PRL concentration may contribute to insulin resistance in PCOS. The aim of this study was to determine PRL on development of insulin resistance in non-obese hyperprolactinemic patients with PCOS. Ninety-eight non-obese subjects with PCOS and 100 non-obese healthy control were accepted in the study. Serum glucose, lipids, androgens, free androgen index (FAI), gonadotropins, fat mass and percentage, SHBG, and insulin levels were measured. Homeostasis model assessment (HOMA) was used as index of pancreatic β-cell function and tissue insulin sensitivity. Independent t-test was used in comparison of results. In patients with PCOS, FAI and mean HOMA-(%B) level were higher than in the control group (p<0.0001), whereas mean HOMA-(%S) in subjects with PCOS was lower than in the control group (p<0.0001). Patients with PCOS were divided into subgroups according to their serum prolactin level (<24 or ≥24 ng/ml). Although FAI was not different, mean insulin and HOMA-(%B) levels in hyperprolactinemic patients were higher than in normoprolactinemic subjects (p<0.001). HOMA-(%S) in hyperprolactinemic patients with PCOS was lower than in normoprolactinemic patients (p<0.002). In conclusion, PCOS is associated with insulin resistance; non-obese hyperprolactinemic PCOS patients may be more insulin-resistant than normoprolactinemics and there may be an association between hyperprolactinemia and insulin resistance in PCOS.


Journal of Endocrinological Investigation | 2004

Serum prostate specific antigen levels in women with polycystic ovary syndrome and the effect of flutamide+desogestrel/ethinyl estradiol combination

Mithat Bahceci; M. Bilge; Alpaslan Tuzcu; Sadiye Tuzcu; Selen Bahceci

Background: Prostate-specific antigen (PSA) is expressed in many female tissues and its concentrations were higher in hirsute subjects. We aimed to determine serum PSA level in hirsute women and evaluate the effect of flutamide+ desogestrel/ethynil estradiol combination. Subjects and study design: Thirty patients with polycystic ovary syndrome (PCOS) and 30 healthy controls were studied. Hirsutism was defined by modified Ferriman-Gallwey score (FGS). Free androgen index (FAI) was used for hyperandrogenism. Patients received flutamide (500 mg/d) and oral contraceptive (desogestrel+ethinyl estradiol) for 9 months. Results: Mean FGS (p<0.0001), insulin (p<0.01), FAI (0.0001), androstenedione (p<0.0001), LH (p<0.05), and free testosterone (p<0.003) levels of patients with PCOS were higher than the control group. Mean serum total and free PSA level of PCOS patients were higher than the control group (p<0.0001 and p<0.0001). We found a positive correlation between total PSA levels and FGS (r=0.568, p<0.001), FAI and FGS (r=0.456 and p<0.01). There was also a positive correlation between FAI and total PSA (r=0.503 and p<0.005). At the end of treatment, FGS, androstenedione, free and total testosterone, FAI, serum PSA and LH levels decreased significantly [serum total PSA was 0,0208±0,0178 ng/ml at baseline and 0,0061±0,0044 ng/ml after treatment (p<0.0001)]. Conclusions: 1. Serum prostate specific antigen level is higher in patients with PCOS; 2. There is a positive correlation among FGS, FAI and PSA levels; 3. Serum PSA levels decrease with antiandrogen treatment; 4. Serum PSA mea-surement might be a marker for hirsutism.


Gynecological Endocrinology | 2004

Polyglandular autoimmune syndrome type III accompanied by common variable immunodeficiency.

Mithat Bahceci; Alpaslan Tuzcu; Semir Pasa; Orhan Ayyildiz; Sadiye Tuzcu

We identified polyglandular autoimmune (PGA) syndrome type III in a 24-year-old nurse with common variable immunodeficiency (CVID). An immune-mediated disorder, membranoproliferative glomerulonephritis, was diagnosed when she was 15 years old. Clinical examination and laboratory findings revealed a PGA syndrome due to the presence of hypergonadotropic hypogonadism, insufficient growth hormone response and thyroid autoimmunity. The patient had neither adrenal disease nor hypoparathyroidism. Therefore we concluded that this patient has PGA syndrome type III. This is an interesting case, because we could not find any previous report of such coexistence between PGA type III and CVID in a Medline search. Coexistence of these two entities may be a result of autoimmunity and the association of both conditions with human leukocyte antigen.


Gynecological Endocrinology | 2016

Four decades without diagnosis: Sheehan's syndrome, a retrospective analysis.

Deniz Gokalp; Gulistan Alpagat; Alpaslan Tuzcu; Mithat Bahceci; Sadiye Tuzcu; Fatime Yakut; Azat Yildirim

Abstract Aim: Sheehan‘s syndrome (SS) remains a frequent cause of hypopituitarism in undeveloped and developing countries, but due to improvements in obstetric care, it is rare in developed countries. We aimed to share the results of a retrospective study analyzing the demographic, clinical, imaging, and hormonal characteristics of a large group of patients with SS, and also increase awareness of this syndrome especially in developed countries. Methods: The medical records of 124 patients with SS patients who were followed up in the Endocrinology Department of Dicle University between 1995 and 2015 were assessed retrospectively. Results: The mean period of diagnostic delay was 20.37 ± 8.34 years on average. 5.7% of patients with SS were literate; 62% of patients delivered at home. Anemia was identified in 64.5% of SS patients. Mean blood sodium levels were 129.8 ± 11.3 mEq/L. The mean urine densities were 1013 ± 6.5. Osteoporosis and osteopenia were found in 44 (35.4%) and 71 (57.2%) patients, respectively, According to pituitary magnetic resonance imaging (MRI) analyses, 92 (74.2%) patients with SS had completely empty sella, 29 (23.3%) had partially empty sella, and 1 patient had microadenoma, and 2 had normal pituitary MRI results. Conclusions: Improved obstetric care and effective interventions for postpartum hemorrhage have limited the prevalence of SS in developed countries. However, in developing countries like Turkey, SS due to postpartum bleeding remains common. Thus, physician’s awareness of the symptoms of SS is urgently required to avoid the associated morbidity and mortality.


Pituitary | 2009

Evaluation of insulin sensitivity in hyperprolactinemic subjects by euglycemic hyperinsulinemic clamp technique

Alpaslan Tuzcu; Serkan Yalaki; Senay Arikan; Deniz Gokalp; Mithat Bahcec; Sadiye Tuzcu


Journal of Nuclear Medicine Technology | 2017

68Ga-DOTATATE PET/CT Can Be an Alternative Imaging Method in Insulinoma Patients

Sadiye Tuzcu; Zafer Pekkolay; Faruk Kılınç; Alpaslan Tuzcu


Endocrine Abstracts | 2017

Four decades without diagnosis: Sheehan's syndrome, a retrospective analysis

Deniz Gokalp; Gulistan Alpagat; Alpaslan Tuzcu; Mithat Bahceci; Sadiye Tuzcu; Fatime Yakut; Azat Yildirim


Medical Science and Discovery | 2016

Thyrotoxicosis due to functioning metastatic follicular thyroid cancer

Sadiye Tuzcu; Faruk Kılınç; Zafer Pekkolay; Hikmet Soylu; Alpaslan Tuzcu


Archive | 2007

Lingual Thyroid, A Rare Embryological Aberration of Thyroid Gland and Primary Hypothyroidism Lingual Tiroid, Tiroid Bezinin Nadir Bir Embriyolojik Atipik Yerleflimi ve Primer Hipotiroidizm

Selen Bahceci; Alpaslan Tuzcu; Zeki Kemeç; Sadiye Tuzcu


Archive | 2007

L Liinngguuaall TThhyyrrooiidd,, AA RRaarree EEmmbbrryyoollooggiiccaall AAbbeerrrraattiioonn ooff T Thhyyrrooiidd GGllaanndd aanndd PPrriimmaarryy HHyyppootthhyyrrooiiddiissmm Lingual Tiroid, Tiroid Bezinin Nadir Bir Embriyolojik Atipik Yerleflimi ve Primer Hipotiroidizm

Selen Bahceci; Alpaslan Tuzcu; Zeki Kemeç; Sadiye Tuzcu

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Fatime Yakut

Memorial Hospital of South Bend

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