Endocrine Abstracts

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 ...

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="...

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...

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 ...

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...

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...

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...

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...

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 ...

Introduction: Although the etiology of osteoporosis is different between men and women, the underlying pathophysiologic mechanism is similar, namely an absolute or relative increase in bone resorption, leading to progressive bone loss. Transforming growth factor (TGF) beta-1 is a growth factor in human bone, which is produced by osteoblasts and inhibits osteoclast proliferation and activity and stimulates proliferation and differentiation of preosteoblasts.<p class="abstex...