Endocrine Abstracts

Introduction: Obstructive sleep apnea syndrome (OSAS) is a common disorder whose prevalence is linked to an epidemic of obesity. OSAS is caused by recurrent episodes of upper airway obstruction during sleep, leading to reduction or cessation of the airflow. Studies have shown a strong association among OSAS and cardiovascular morbidity and mortality. Therefore, currently we performe overnight polysomnograpy in all patients with obesity in our outpatient clinic. In order to obs...

Aim: To investigate the relationship between serum growth hormone (GH) and insulin-like growth factor-1 (IGF-1) levels, seminal plasma GH and IGF-1 levels, and sperm parameters in acromegalic patients.Methods: A cross-sectional study was conducted on 24 acromegaly patients (acromegaly group), 11 non-functioning adenoma (NFA) patients (NFA group), and 16 healthy men (control group). Seminal plasma GH and IGF-1 levels were measured. Semen parameters and se...

Aim: To determine the prevalence of impulse control disorder (ICD) in patients with Cushing’s disease (CD) treated with cabergoline (CBG) compared to CBG-naive patients with CD.Methods: We performed a cross-sectional study in patients with CD followed at 5 referral centers based in Istanbul. Eligible patients with CD were those with current CBG treatment for ≥ 3 months. Eligible controls were CBG-naive patients with CD that were matched for ag...

Introduction: Intensive insulin treatment in obese patients with type 2 diabetes (T2DM) is often difficult. Insulin dosages are much higher, which further increase weight gain and the risk of hypoglycemia. Glucagon like peptide 1 receptor agonists (GLP-1RAs) are the promising treatment modalities causing weight loss and reducing the risk of hypoglycemia. There is no published data about the effect of adding on GLP1RAs to obese T2DM patients with un-controlled glucose levels un...

Case report: Adrenal pseudocysts are rare bening lesions that usually mimick solid tumors on imaging. Although they are asymptomatic and often discovered incidentally, distinguishing them from clinically important adrenocortical masses may be problematic before surgery. We report the case of a 50-years-old female who was referred to endocrinology outpatient clinic with a 54×58×50 mm sized mass in the left adrenal gland. Abdominal MRI which was performed because of ri...

Constitutive activation of the cAMP pathway by activating TSHR mutation stimulates both thyrocyte proliferation and function. Thus they lead to formation of toxic thyroid nodules (TTNs) and ultimately hyperthyroidism. The in vitro activity of the various TSH-receptor mutation varies from 2–7 fold cAMP increase over the wild type TSH receptor. One previous study invrestigated a possible genotype to phenotype relation in TTNs with somatic TSHR mutation with a negativ...

Introduction: Recent studies showed that post-menopausal osteoporosis and weight gain starts at the perimenopause stage, a period characterized by relatively stable estrogen and rising FSH levels. FSH is found to be associated with adiposity in women, which is also a great risk factor for type 2 DM. There is also a sharp increase in visceral adiposity during this life stage, which coincides with the emergence of disrupted energy balance and reduced physical activity. There is ...

Androgenic alopecia (AGA) is an important clinical issue that can cause significant cosmetic problems. Many factors such as genetic, androgen hormones, environmental factors, and inflammation are involved in the pathogenesis of androgenic alopecia. Insulin and insulin resistance have been found increased in individuals with AGA. There are many proinflammatory substances which are playing role in the pathogenesis of androgenic alopecia. Secreted frizzled related protein-4 (SFRP...

Introduction: Patients with hypogonadism are at increased risk for cardiovascular diseases. Mean platelet volume (MPV), platelet-to-lymphocyte ratio (PLR), and neutrophil-to-lymphocyte ratio (NLR) are hematological indices that are surrogate markers of adverse cardiovascular outcomes. This study investigated the platelet count, MPV levels, PLR, and NLR in patients with congenital hypogonadotrophic hypogonadism (CHH) and also studied the effect of testosterone replacement thera...

Macro TSH is a large molecular-sized thyroid-stimulating hormone (TSH) that is including TSH and anti-TSH antibody. Patients with macro TSH have elevated serum TSH and normal free thyroxine levels similar to subclinical hypothyroidism. A 18-year old female patient was referred from gynecology and obstetrics to endocrinology clinic for evaluating of elevated TSH with normal free thyroxine levels. Laboratory and clinical investigations revealed that only discordant TSH levels (n...