Searchable abstracts of presentations at key conferences in endocrinology

ea0029p446 | Clinical case reports - Thyroid/Others | ICEECE2012

Graves’ disease with a transient lung mass

Tunc U. , Gedik A. , Akkoclu A. , Bayraktar F. , Demir T. , Comlekci A.

Introduction: Involvement of different tissues and organs may be seen during the course of Graves’ disease (GD). We here aimed to present a case with GD and lung mass whose lung lesion disappeared after recieving antithyroid treatment.Case report: A 60 year old man admitted to our hospital with back pain. His thorax computed tomography (CT) revealed a 1.5×3 cm mass in lower right lobe. He was consultated by our clinic preoperatively before thor...

ea0003p11 | Bone | BES2002

Effect of rosiglitazone on bone strength in osteoporotic rats

Oge A , Bayraktar F , Uyulgan B , Yilmaz C , Kabalak T

Objective: Thiazolidinediones offer promise as oral insulin-sensitizing agents. Peroxisome proliferator-activated receptor-g (PPARg), a member of the steroid receptor superfamily, play a pivotal role in the differentiation of adipocytic cells. Osteoblasts and adipocytes are derived from common bone marrow stromal cells that play crucial roles in the generation of osteoclasts. Activation of peroxisome proliferator-activated receptor-g (PPARg) induces adipogenic differentiation ...

ea0003p115 | Diabetes & Metabolism | BES2002

Atorvastatin decreases LDL oxidation in glucocorticoid excess state

Bayraktar F , Oge A , Ozgonul M , Ozgen A , Sozmen E , Yilmaz C

Objectives-Aim: Oxidized low-density lipoprotein (LDL) seems to play an important role in the etiology of atherosclerosis. They stumulate atherosclerosis. Glucocorticoids decrease LDL degradation and expression of LDL receptor. Morever insulin resistance in glucocorticoid excess state may contribute to LDL oxidation changes. The aim of this study was to investigate, the LDL oxidation in glucocorticoid excess state and the effect of atorvastatin on LDL oxidation.<p class="...

ea0003p174 | Growth and Development | BES2002

Growth hormone therapy decreases LDL oxidation in oestrogen deficiency

Bayraktar F , Oge A , Ozgonul M , Ozgen A , Sozmen E , Yilmaz C

Objectives-Aim: Oxidized low-density lipoprotein (LDL) seems to play an important role in the etiology of atherosclerosis. They stumulate atherosclerosis. Oestradiol and other oestrogens have been shown to be powerful antioxidants in vitro when they are added to ldl oxidation mixtures. Oestrogen deficiency states are increases LDL oxidation. The aim of this study is investigate the effect of growth hormone on LDL oxidation in estrogen deficiency.Materia...

ea0002p3 | Bone | SFE2001

GROWTH HORMONE INCREASES FEMORAL AND VERTEBRAL BONE STRENGTH IN OSTEOPOROTIC RATS

Bayraktar F , Oge A , Ozgen A , Uyulgan B , Kabalak T , Yilmaz C

Objective: Human growth hormone (hGH) stimulates bone formation and have been proposed as therapeutic agents for osteoporosis. We have examined the effects of hGH on femoral and vertebral bone strength in osteoporotic rats.Methods: Thirty-five Sprague-Dawley rats were assigned to study in three groups: (1) Normal rats (without ovariectomy and corticosteroid therapy) (2) Osteoporosis group: ovariectomized (OVX) or with glucocorticoid induced osteoporotic ...

ea0090ep33 | Adrenal and Cardiovascular Endocrinology | ECE2023

A case of Merkel cell carcinoma in the CNC 1 (Carney complex 1) gene positive family with a rare component of the Carney complex

Nasrullayeva Fidan , Bayraktar Fırat , Unal Mehmet Cağrı , Semiz Gokcen Gungor

Introduction: CNC (Carney complex) is a rare inherited autosomal dominant syndrome characterized by prominent pigmented lesions on the skin and mucosal surfaces, cardiac and noncardiac myxomatous tumors, and multiple endocrine neoplasms. About 70% of cases have a family history, while the remaining 30% occur sporadically as a result of de novo mutation. Two genetic loci linked to CNC have been found: the CNC1 gene on chromosome 17q22-24, which encodes the regulatory subunit (R...

ea0029p461 | Clinical case reports - Thyroid/Others | ICEECE2012

‘Collision tumor’ of the thyroid: a case report

Yilmaz M. , Gedik A. , Durak M. , Ozdogan O. , Kocdor M. , Bayraktar F.

Introduction: Differentiated thyroid carcinoma (papillary and follicular) being the most common type of thyroid malignancy (80%), originates from the thyroglobuline secreting follicular cells. Medullary thyroid cancer derived from parafollicular C-cells producing calcitonin is relatively rare (5–10%). In this report we aimed to present a case with simultaneous papillary and medullary carcinoma in the same thyroid nodule.Case report: Sixty nine year ...

ea0003p10 | Bone | BES2002

A comparative study of raloxifen and estrogen on bone strength and cholesterol levels in ovariectomized rats

Oge A , Bayraktar F , Sevin G , Uyulgan B , Yilmaz C , Kabalak T

Objective: Estrogen or raloxifen prevent estrogen deficiency-induced bone loss animals and humans. There is a medical need for agent with the positive effects of estrogen on bone and the cardiovascular system, but without the negative effects tissue. So, we investigated the effects of raloxifen on bone strength and cholesterol levels in osteoporotic rats and compared them with estrogen treatment.Methods: Thirty-one ovariectomized (OVX) Sprague-Dawney ra...

ea0002p2 | Bone | SFE2001

ATORVASTATIN INCREASES FEMORAL AND VERTEBRAL BONE STRENGTH IN OSTEOPOROTIC RATS

Bayraktar F , Oge A , Uyulgan B , Ozgen A , Sevin G , Kitapcioglu G , Yilmaz C

Objective: HMG Coenzyme A reductase inhibitors (statins) mainly decrease low-density lipoproteins (LDL) cholesterol but also have been found to have beneficial effects in the skeleton. The aim of this study was to examine atorvastatin effects in vivo on femoral and vertebral bone strength.Methods: An ovariectomized (OVX), a glucocorticoid induced osteoporotic (GIO) and an OVX plus GIO group of rat models were used to study the effects of atorvastatin. Sp...

ea0011p231 | Cytokines and growth factors | ECE2006

Serum TGF-β-1 levels in non-alcoholic steatohepatitis

Yener S , Akinci B , Bayraktar F , Demir T , Akarsu M , Özcan MA , Yalcin M , Kebapcilar L , Comlekci A , Yesil S

Aim: Non-alcoholic steatohepatitis is one of the most common causes of chronic liver disease and the incidence in the population varies from %10–24. TGF- β –1 is the most important TGF- β isoform responsible for fibrosis and its effect on hepatic fibrosis was demonstrated in-vitro and in chronic viral hepatitis. Besides TGF- β is an immunsuppresive cytokine and it is known that low TGF- β activity can trigger autoimmune diseases and inflammation.<...