Endocrine Abstracts

Introduction: As soon as pregnancy is established, various physiological changes occur in maternal thyroid economy. Due to that, the reference limits of thyroid parameters used for the general population are no longer valid to diagnosis thyroid dysfunction during pregnancy.Methods: We included 266 pregnant women, with no thyroid disorders and resident in Cantabria, a region in northern Spain. They were questioned about iodized salt and iodine supplements...

Background and aims: Periodontal disease (PD) is a chronic inflammatory condition where the key feature is the alveolar bone loss. Diabetes mellitus is a major risk factor in the occurrence of PD and vitamin D has been found to play a role in the development of diseases such as PD for its immunomoduratory and anti-inflammatory effects. The purpose of this study was to evaluate the relationship between PD and vitamin D levels in type 1 diabetic patients.S...

Introduction: Osteoporosis is a frequent complication associated with primary hyperparathyroidism (PHPT), and surgery is the most effective treatment once established. However, many patients are not candidates for it, and different medical options have been investigated. We aimed to assess the efficacy of denosumab (DMAB) in increasing bone mineral density (BMD) and preventing PHPT-related complications.Methods: Case-control study defining cases (Group 1...

Background and aims: Primary hyperparathyroidism (PHPT) often presents without classical symptoms such as overt skeletal disease or nephrolithiasis. Treatment strategies have been widely discussed. The objective of our research was to study the effect of parathyroidectomy (PTX) compared to observation (OBS) on skeletal outcomes such as bone mineral density (BMD).Subjects and methods: A retrospective observational study was conducted between 1991 and 2014...

Background and aims: Primary hyperparathyroidism (PHPT) is a common endocrine disorder with different epidemiological patterns among countries. The incidence of PHPT is unknown in Spain. The aim of our study is to assess the prevalence and incidence of diagnosed PHPT in adults between 1970 and 2014 in Santander, a population of 290.000 inhabitants, located in the north of Spain.Subjects and methods: All patients diagnosed with primary hyperparathyroidism...

Introduction: Smoking affects thyroid function, the magnitude and direction of the effect varies greatly with different studies. Less is known about the effect of smoking in thyroid function during pregnancy.Materials and methods: Healthy pregnant women with not known thyroid dysfunction were questioned about smoking habit in the first trimester of pregnancy. Blood samples for TSH, free T4 (fT4) and free T3 (fT3) were obtained in each trimester and for t...

Introduction: Giant pituitary adenomas (GPAs) are traditionally defined as the tumors with the greatest diameter at or above 40 mm. However, some clinical series of GPAs include tumors with maximal diameter of 35 to 40 mm, and those tumors can be named ‘nearly giant’ pituitary adenomas (nearly GPAs). The treatment of GPAs is challenging and has a higher risk of complications due to the size and complex anatomical relations. This study was conducted to compare GPAs an...

Background: Primary hyperparathyroidism (PHPT) affects mainly cortical bone. It is thought that PTH indirectly regulates the activity of osteoclasts by means of the osteoprotegerin/ligand of the receptor activator of nuclear factor-κβ (OPG/RANKL) system. Several studies have confirmed that OPG and RANKL loci are determinants of bone mineral density (BMD) in the general population. The aim of this study is to analyze the relationship between fractures and BMD and the ...

Background: CLDN14 gene encodes a protein involved in regulation of paracellular permeability or ion transport at epithelial tight junctions as in the nephron. C allele of the rs219780 SNP of CLDN14 gene has been associated with high levels of PTH and with low bone mineral density (BMD) in women. Our aim is to study the relationship between rs219780 SNP of CLDN14 and fractures, renal lithiasis and bone mineral density in patients with primary hyperparathyr...

Introduction: Cushing’s disease (CD) is responsible for 80% of endogenous Cushing’s syndrome (CS). However, distinguishing the cause of ACTH-dependent CS – CD vs ectopic CS – can be extremely difficult. Bilateral inferior petrosal sinus sampling (IPSS) has the highest diagnostic accuracy in this evaluation.Objectives: The aims of this study were to determine the accuracy of bilateral IPSS in the differential diagnosis of ACTH-dependen...