Endocrine Abstracts

Macroprolactin is a collective term for a heterogenous group of high molecular mass forms of prolactin with minimal bioactivity in vivo. Objective: to determine prevalence of macroprolactinemia (macroPRL) and clinical characteristics of patients with hyperprolactinemia (hyperPRL) who underwent assessment for macroPRL in Endocrinology outpatient clinic.Methods: We reviewed the medical records of 54 patients who were evaluated for macroPRL between...

Vitamin D has a role in the pathogenesis of thyroid autoimmunity.There is evidence in humans that serum levels of 1,25(OH) D3 were found to be significantly lower in patients with autoimmune thyroid diseases.We have evaluated all samples performed in the endocrine labs tested for vitamin D, AbTg, Ab-TPO and TSH from 2006 to 2015; 29216 samples for vitamin D and 41014 for TSH, AbTg and TPO were considered.We s...

Aim: To know if Tg levels after treatment (total thyroidectomy and radioiodine ablation) in the DTC can predict their prognosis in the long term.Material and methods: Basal Tg and Tg after rh-TSH were measured in 229 patients with DTC without any evidence of residual tumour (negative neck ultrasonography) after treatment. The group was followed until tumour recurrence or, if recurrence was not found, a minimum of 12 month (mean ± SD =63±37 mont...

Introduction: Incidental papillary thyroid carcinoma (PTC) in patients undergoing thyroidectomy for benign multinodular disease is a well-recognised finding. Its true prevalence remains uncertain and shows great variability between studies, ranging from 7–25%. Our purpose was to review the prevalence of PTC in thyroid glands removed for benign nodular disease at a Northern Portuguese tertiary hospital.Methods: From December 2012 to December 2014, th...

Thyroid cancer is one of the most frequent malignancies of the endocrine system, and its incidence is predicted to become the fourth leading cancer diagnosis by 2030. Among thyroid carcinomas, anaplastic thyroid cancer (ATC) is the most aggressive and lethal tumor, which grows very rapidly, invades adjacent tissues and metastasizes, causing death in 1 year from diagnosis. We recently showed that in thyroid cancer PATZ1 expression is downregulated compared to normal thyroid and...

Introduction: Bilateral macronodular adrenal hyperplasia (BMAH) is a rare aetiology of Cushing syndrome. Familial clustering suggests a genetic cause that was recently confirmed, after identification of inactivating germline mutations in armadillo repeat containing 5 (ARMC5) gene.Clinical case: A 70 years old female admitted due to femoral neck fracture in May 2014, presented central obesity, rubeosis and hypertension. Laboratory work up reveale...

Introduction: Familial hypocalciuric hypercalcaemia (FHH) is a rare genetically heterogeneous disorder, with 3 variants described. An inactivating mutation in the calcium sensor receptor (CASR) gene causes the subtype 1, which represents 65% of the cases.It is charaterised by hypercalcaemia and hypocalciuria with normal or elevated PTH. FHH is generally assymptomatic and treatment is not needed. Differential diagnosis with primary hyperparathyroidism (PH...

Background: Surgery is the main therapeutic option for advanced endometrial cancer; however, when disease relapses, chemotherapy is the only option. Chemoresistance is a very common phenomenon in these tumors. We previously demonstrated that GH protects breast cancer cells towards the cytotoxic effects of doxorubicin, inducing chemoresistance. Recent evidences show that endometrial cancer cells secrete GH, stimulating their own growth in an autocrine fashion.<p class="abst...

Introduction: Thionamides are important drugs in the treatment of hyperthyroidism. Despite that, they can be associated with rare but serious complications, which require drug discontinuation.Case report: Sixty-five-year-old woman with Graves’ disease, treated in 2002 with methimazole and in remission until 2012. Recurrence of Graves’ disease was diagnosed in March 2012 and she was started on propylthiouracil (PTU) 150 mg per day. She presented...

Introduction: Patients with psychotic or depressive disorders have an increased risk of developing metabolic syndrome, not only because of their unhealthy lifestyle (sedentary habits, inadequate diet and smoking) but also because of the negative impact of antipsychotic agents (specially clozapine and olanzapine) on several metabolic features. These include overweight/obesity, dyslipidemia, development of new-onset type 2 diabetes, worsening of pre-existing diabetes and diabeti...