Endocrine Abstracts

Background: Primary adrenal insufficiency (PAI) is a rare, genetically heterogenous condition, characterised by hypocortisolaemia and high plasma ACTH levels in the presence or absence of mineralocorticoid deficiency. PAI can be life-threatening if unrecognised, misdiagnosed or under/untreated. Familial glucocorticoid deficiency (FGD) is a rare autosomal recessive form of PAI characterised by isolated glucocorticoid insufficiency. Mutations in the MC2R/ACTH receptor, ...

Introduction: Metabolic syndrome (MetS) is correlated with increased cardiovascular risk and characterized by several factors, including visceral obesity, hypertension, dyslipidemia, and insulin resistance. Several members of a large family of nonselective cation channels, e.g., transient receptor potential (TRP) channels, have been associated with the development of cardiovascular diseases. Thus, changes of TRP channel expression may account for the observed increased cardiov...

Introduction: Autoimmune thyroid diseases result from a dysregulation of the immune system leading to an immune attack on the thyroid. Autoimmune thyroid diseases, which include Graves’ disease (GD) and Hashimoto’s thyroiditis (HT), are characterised by lymphocytic infiltration of the thyroid parenchyma. The mechanisms that trigger the autoimmune attack to the thyroid are not entirely known. The aim of this study was to investigate the possible contribution of Rho/Rh...

Introduction: Diabetes is associated with increased fracture risk both in patients with type 1 (T1D) and type 2 diabetes (T2D) despite differences in bone mineral density BMD (decreased in T1D and increased in T2D). In T2D, insulin resistance (IR) is selective, with some insulin signaling pathways impaired, while others are overactive due to hyperinsulinemia. It is not clear how different insulin signaling pathways might contribute to the bone phenotypes observed in diabetes. ...

Familial glucocorticoid deficiency (FGD) is a rare autosomal recessive disorder characterised by unresponsiveness to ACTH and isolated cortisol deficiency. FGD is caused by mutations in genes encoding the ACTH receptor (melanocortin 2 receptor (MC2R)), its accessory protein (MRAP) or the steroidogenic acute regulatory protein (StAR). One significant feature is generalized skin hyperpigmentation which is thought to be due to elevated ACTH acting on the melanocortin 1 receptor (...

Introduction: The evidence shows that the prevalence of metabolic syndrome is increased in patients with hypogonadism. However, much of the data regarding this association comes from the elderly patients with obesity, hypertension or type 2 diabetes. The total testosterone levels alter physiologically in these conditions and thus can falsify the association. We aimed to investigate the prevalence of the metabolic syndrome in young adults with hypogonadism who do not have any c...

The high-density lipoprotein (HDL) levels are decreased in paitents with hypogonadotropic hypogonadism (HH). Although testosteron regulates lipoprotein metabolism, the effect of testosterone replacement therapy on HDL metabolism is not clearly shown in HH. The aim of this study is to determine the effects of testesterone replacement on HDL subfractions in young patients with HH. Forty-three cases with HH (mean age 21±2.45 years) were enrolled. Fifty-one healthy volunteer ...

Obesity is a risk factor for calcaneal spur (CS) formation which is supposed to originate from chronic plantar fasciitis. But histological findings support the thesis that ‘plantar fasciitis’ is a degenerative fasciosis without inflammation. Diabetes mellitus may contribute to the risk of CS by decreased ability of tissue repair and increased reactive ossification. Thus, we aimed to determine CS incidence in asymptomatic obese subjects with and without type 2 diabete...

Objective: One of the common features of hypothyroidism is weight gain or failure to lose weight. Also bradycardia and mild hypertension can be seen. Impact of thyroid hormone deficiency on glucose and insulin metabolism is not fully understood. Thyroid hormones play role in lipid synthesis, metabolism and mobilization. Metabolic syndrome is a state which most features of hypothyroidism can be seen. Our aim is to investigate the frequency of metabolic syndrome in hypothyroid p...

Objective: Thyroid hormones directly or indirectly, through erythropoietin, stimulate growth of erythroid colonies. Anemia is often the first sign of hypothyroidism. Hypothyroidism can lead to a wide variety (%20–60) of anemic disorders. Numerous mechanisms are involved in the pathogenesis of these anemias which can be microcytic, macrocytic and normocytic. Microcytic anemia is usually ascribed to malabsorption of iron and loss of iron by menorrhagia. Macrocytic anemia is...