Publications by authors named "Yasemin Tutuncu"

Objective: This study aims to assess endocan levels in patients with acromegaly who have active disease or disease in remission and to investigate a relation between endocan levels and endothelial dysfunction in these patients.

Design: The study is a case-control study. Study was conducted at Istanbul Medeniyet University Goztepe Training and Research Hospital between 2013 and 2019.

View Article and Find Full Text PDF

Background: The aim of this study was to determine relationships between microvascular complications of type 2 diabetes mellitus (T2DM) and trace element levels measured by ICP-MS.

Methods: One hundred eighteen patients with T2DM (age: 30-65 years) and 40 control subjects were included in the study. The T2DM patients were divided into three groups according to their types of microvascular complications.

View Article and Find Full Text PDF

Introduction: BRAFV600E activating mutation is the most frequent genetic abnormality in the pathogenesis of papillary thyroid carcinoma. We aimed to evaluate the association between BRAFV600E mutation and well-established prognostic clinicopathological characteristics as well as iodine exposure.

Material And Methods: From 2000 to 2012, the data of PTC patients admitted to Dr.

View Article and Find Full Text PDF

Background/aim: To examine changes in paratracheal lymph nodes (PLNs) and the relationship with the course of the disease in patients with chronic autoimmune thyroiditis (CAT) 5 years after diagnosis. Materials and methods: A total of 169 patients with newly diagnosed CAT and 53 healthy subjects were included in the study. All patients underwent ultrasonographic (US) examinations of the thyroid, paratracheal regions, and examined thyroid function tests.

View Article and Find Full Text PDF

Background: Mean platelet volume (MPV) is generally accepted as a new marker of cardiovascular disease risk in several studies.

Objectives: This study aimed to determine the association of MPV with androgen hormones and insulin resistance (IR) in nonobese patients with polycystic ovary syndrome (PCOS).

Patients And Methods: A total of 136 patients with newly diagnosed reproductive-age PCOS (regarding the criteria of new PCOS phenotypes, based on the Rotterdam criteria) who were nonobese with the mean age of 25 years (25.

View Article and Find Full Text PDF

The role of insulin resistance (IR) is well-documented in obese women with polycystic ovary syndrome (PCOS). Controversies exist concerning the presence of IR in idiopathic hirsutism (IH) or if it is a manifestation of high body mass index (BMI). We aimed to investigate the presence/absence of IR in lean hirsute women.

View Article and Find Full Text PDF

Background: Primary hyperparathyroidism (PHPT) is associated with cardiovascular morbidity; however, data on the reversibility of cardiovascular disease in mild primary hyperparathyroidism are conflicting. The aim of this study was to assess endothelial function in patients with mild PHPT before and after parathyroidectomy (Ptx).

Methods: We prospectively evaluated 53 patients with mild PHPT (Group 1; 45 women, eight men; aged 52 ± 3·1 years) and 46 healthy control subjects (Group 2; 38 women, eight men; aged 46 ± 9·5 years).

View Article and Find Full Text PDF

Objective: High body mass index (BMI) has been found to be associated with raised thyroid cancer risk, particularly in women. We examined the associations for BMI and waist circumference (WC) with thyroid cancer risk among women with Hürthle-cell lesion/neoplasm (HLN) on fine-needle aspiration biopsy (FNAB) with the hypothesis that BMI and WC could guide the management of these challenging indeterminate lesions.

Methods: This cross-sectional study included 224 women with HLN who underwent thyroidectomy.

View Article and Find Full Text PDF

Background: Hyperprolactinemia is the most common endocrinologic disorder in causing menstrual irregularities. Although the correlation between hyperprolactinemia and menstrual dysfunction is widely known, the etiology of menstrual cycle disorders is not profoundly understood in patients with prolactinoma. We aimed to investigate the correlation between prolactin levels and insulin resistance and hyperandrogenism in patients with prolactinoma.

View Article and Find Full Text PDF

Aims: The aim was to compare the intraocular pressure (IOP), central corneal thickness (CCT), and optic disc topography findings of biochemically controlled acromegalic patients and the control group and to evaluate the effect of the duration of acromegaly and serum growth hormone and insulin-like growth factor-1 (IGF-1) levels on these ocular parameters.

Materials And Methods: IOP measurement with Goldmann applanation tonometry, CCT measurement with ultrasonic pachymetry, and topographic analysis with Heidelberg retinal tomograph III were performed on 35 biochemically controlled acromegalic patients and 36 age- and gender-matched controls.

Results: Mean IOP and CCT were 14.

View Article and Find Full Text PDF

Purpose: Radioactive Iodine therapy (RAIT) plays a major role in the treatment of hyperthyroidism. In addition to the thyroid gland, significant amounts of radioactive iodine are maintained in the stomach. The aim of this study was to determine if RAIT has any effect on Helicobacter pylori infection, based on the C urea breath test (UBT).

View Article and Find Full Text PDF

Purpose: To investigate the effect of acromegaly on corneal biomechanical parameters.

Methods: This cross-sectional, comparative clinical study included 34 acromegalic patients and 30 age-matched and sex-matched healthy controls. Corneal hysteresis (CH), corneal resistance factor (CRF), Goldmann-correlated and corneal-compensated intraocular pressure (IOPg and IOPcc, respectively) were measured using the Ocular Response Analyzer.

View Article and Find Full Text PDF

Objective: The relationship between insulin resistance and thyroid nodules in patients with non-functional adrenal incidentalomas (AI) is not clearly understood. The aim of this study was to determine the frequency of thyroid nodules in AI patients, as well as to evaluate any possible associations with disorders of insulin resistance.

Methods: Patients diagnosed with a non-functional AI were approached for inclusion in the study.

View Article and Find Full Text PDF

Spontaneous adrenal hemorrhage (SAH) is seen in the absence of trauma or adrenal tumor in adrenal glands. The incidence of SAH has been reported from 0.14% to 1.

View Article and Find Full Text PDF

Various approaches are available for the management of nodules that are evaluated to be indeterminate according to the results of thyroid fine needle aspiration biopsy. The present study aimed to determine the rate of malignancy and the ultrasonographic features that could be used as predictor of malignant pathologies at the nodules with indeterminate cytology. A total of 201 patients who underwent total thyroidectomy and whose fine needle aspiration biopsy results were evaluated to be Hurthle cell lesion (n = 99), follicular neoplasm (n = 61) and [corrected] suspicious for malignancy (n = 41) were enrolled in this study.

View Article and Find Full Text PDF

Objective: The aim of the present study was to evaluate P-wave dispersion (PWD) in obese women, and to investigate the relationship between P-wave measurements, high sensitive C-reactive protein (hsCRP), carotid intima-media thickness (CIMT) and echocardiographic findings.

Methods: Forty-four patients with obese premenopausal women and 30 females with normal weight were enrolled this cross sectional, observational study. Results of anthropometric measurements, laboratory assays, electrocardiographic and echocardiographic findings were recorded for each participant.

View Article and Find Full Text PDF

Hyperprolactinemia is the most common abnormality of the hypothalamic-pituitary axis. The aim of this study was to investigate the clinical and radiological features of patients with macroprolactinemia. The study population consisted of patients with elevated serum prolactin (PRL) concentrations who presented to our Endocrinology outpatient clinic.

View Article and Find Full Text PDF

Background: Transforming growth factor-beta 1 (TGF-β1) contributes to tissue repair by promoting tissue fibrosis, and elevations have been reported in patients with bone marrow fibrosis. The aim of this study was to evaluate the relationship between TGF-β1 levels and vitamin D deficiency.

Methods: All patients presenting to the outpatient Endocrinology and Metabolic Diseases clinic between June and September of 2008 were approached, and consenting patients who were deemed suitable candidates were enrolled.

View Article and Find Full Text PDF

Objective: The aim of this study was to evaluate ovarian reserve of women with type 2 diabetes mellitus (T2DM).

Methodology: Eighty-nine women with T2DM and 73 healthy controls were enrolled and divided into three age groups [group 1 (20-29 yr), seven diabetics and 18 healthy controls; group 2 (30-39 yr): 35 diabetics and 35 healthy controls; and group 3 (40-49 yr): 47 diabetics and 20 healthy controls]. All participants were subjected to transvaginal ultrasonographic examination on the third day of their menstrual periods for the determination of ovarian volume and total antral follicle count (AFC).

View Article and Find Full Text PDF

Purpose: To compare the optic nerve head topographic parameters of the cases with Graves disease (GD), and the age and sex-matched control group, by using Heidelberg retinal tomography III.

Materials And Methods: We evaluated both eyes of 65 patients with GD and 54 age and sex-matched controls. For statistical analysis, Mann-Whitney U test and independent sample t test were used.

View Article and Find Full Text PDF

Aim: The aim of this study was to evaluate the relationship between sublinical inflammation and glycemic status in patients with gestational diabetes mellitus (GDM).

Methods: Sixty-one patients with GDM and 40 healthy pregnant women were included in the study. Fasting blood glucose (FBG), insulin, high sensitivity C-reactive protein (hsCRP), lipid parameters and carotid artery intima-media thickness (CIMT) were measured.

View Article and Find Full Text PDF

Objective:   Impaired gallbladder (GB) emptying is a well-documented contributor to gallstone formation. The aim of this study was to evaluate GB motility in patients with polycystic ovary syndrome (PCOS).

Methods:   The study population consisted of 36 PCOS patients and 20 healthy controls.

View Article and Find Full Text PDF

Long-acting somatostatin analogs are frequently used as adjuvant treatment of acromegaly patients after noncurative surgery. This sudy aims to compare the efficacy of octreotide long-acting release (OCT) and lanreotide Autogel (LAN) in acromegaly patients. Sixty-eight patients not cured by transsphenoidal endoscopic or microscopic pituitary surgery between 2003 and 2009 were retrospectively analyzed (25 men; 43 women; mean age 41.

View Article and Find Full Text PDF

Thyroid stimulating hormone (TSH) secreting pituitary adenomas are rare tumors manifested as hyperthyroidism with goiter in the presence of elevated TSH. We present a case with pituitary adenoma secreting both TSH and growth hormone (GH) with the prominent clinical findings of hyperthyroidism but without clinical findings of acromegaly. Pituitary magnetic resonance imaging revealed a macroadenoma.

View Article and Find Full Text PDF