Endocrine Abstracts

Introduction: Noonan syndrome (NS) is an autosomal dominant disorder or may occur on a sporadic basis, characterized by short stature, typical face dysmorphology and congenital heart defects. NS is a clinical diagnosis. Establishing the diagnosis can be very difficult, especially in adulthood. There is a great variability in expression and the phenotype become less pronounced with increasing age. The scoring system of Van der Burgt et al. has been devised to help the di...

Pituitary adenomas may show alterations of PI3K/Akt pathway. IGF2, binding the IGF1-R, is able to active it. LOI of IGF2 has been implicated in the pathogenesis of many tumours. Activation of PI3K produces phosphorylation of p27 and its cytoplasmic mislocalization. Loss of nuclear p27 was associated with worse prognosis. In this study we correlated IGF2 imprinting with activation of PI3K/Akt pathway in a series of 29 somatotropinomas. After surgery, tumors were embedded in RNA...

The compounds derived from the oxidative stress and lipid peroxidation stimulate the bone loss, in part because they enhance the adipogenesis and blunt the osteoblastogenesis from mesenchymal stem cell (MSC), increasing the marrow adiposity that accompanies the osteoporosis. The consumption of omega-3 seems to have a protective effect on bone. This effect has been associated with the production of 15-hydroxy-eicosapentaenoic acid and 17-hydroxy-docosahexaenoic...

Introduction: Current guidelines recommend that thyroid nodules classified as Thy 3 following fine needle aspiration (FNA) should be managed surgically. This results in over-treatment of benign disease. The purpose of this study was to review multi-disciplinary team (MDT) management of Thy 3 FNAs at our institution.Patients and methods: A total of 109 FNAs were performed between April 2008 and October 2009; 31 were reported as Thy 3. The management of al...

Disruption of the balance in energy homeostasis and substrate metabolism can lead to obesity and the metabolic syndrome on one hand and body wasting in cachexia associated with cancer and other chronic diseases on the other hand. Indirect evidence suggests that prostaglandins (PGs), products of the cyclooxygenase (COX) pathway, are involved in the regulation of metabolic processes under physiological conditions or during disease, in particular cancer cachexia. However, the dir...

The RET/GFRa/GDNF system displays a wide distribution in tissues such as nervous system, kidneys, intestine or testis. RET has been implicated in human pathologies. RET is a tyrosine-kinase receptor activated by four ligands GDNF, NTN, ART and PSPN through four co-receptors GFRa1, 2, 3 and 4 respectively. Activation of the receptor leads to cell differentiation or proliferation. Our group has shown that RET is expressed specifically in the somatotrope (GH) adult cell populatio...

In autoimmune thyroid disease some diverse neurological alterations like dementia, psychosis or peripheral neuropathy, are described. Hashimoto’s encephalopathy (EH) is a serious form of these neurological alterations. We describe three cases with different presentation and morphologic normal tests where cerebral SPECT was diagnostic.Case n°1. A 32-year-old male diagnosed of autoimmune hypothyroidism which presents paresthetics and muscular sti...

Introduction and objectives: Transsexuality refers to discrepancy between the assigned sex/gender at birth and the one that the subject identifies with. The use of the cross hormone treatment as sex/gender change method implies the necessity of monitorize the hormone levels and potential treatment risks. Our study tries to evaluate the relationship between the hormone changes and the changes in the cardiovascular risk factors and the bone mineral density.<p class="abstext"...

We presented the case of a 21 years old patient, derived from Primary Care to evaluate low testosterone levels (total testosterone (TT) 0.44 ng/ml). His father had delayed pubety and his mother menarche was at 11 years. No other personal history of interest. He had adequate child development and vaccination. No parotiditis. He referred some morning erections. Weight 59 kg, size 171 cm and BMI 20.17 kg/m2. Testes volume (TV) of 4-5 cc, scanty pubic hair. Tanner stage...

Introduction: Postoperative hypocalcemia is among the most frequent morbidities after total thyroidectomy. Although most postoperative hypocalcemia is temporary, it causes prolonged hospitalization and a decrease in quality of life. For all this, early diagnosis is essential to start treatment as soon as possible. In this study, we determined whether early serum calcium levels can predict the development hipoparathyroidism.Methods: A total of 122 patient...