Endocrine Abstracts

It has been demonstrated that everolimus, an mTOR inhibitor, has potent anti-proliferative effect in a human Medullary Thyroid Carcinoma (MTC) cell line, TT, and in two human MTC primary cultures. We aimed at evaluating the possible antiproliferative effects of everolimus in a group of 20 human MTC in primary culture. To this purpose, 20 MTCs were dispersed in primary cultures, treated without or with 1 nM – 1 μM everolimus, 10 nM SOM230, and/or 50 nM IGF1. Cell viab...

Context: GH and insulin-like growth factor (IGF1) play important roles in breast cancer (BC) development. IGF1 has been shown to importantly influence estrogen effects on BC, suggesting that estrogen receptors (ER) may mediate also GH effects. We previously demonstrated that GH and IGF1 protect the ER positive BC-derived MCF7 cell line towards the cytotoxic effects of doxorubicin (D), independently of IGF1.Aim of the study: Evaluate whether this holds tr...

Tolvaptan, an oral antagonist of the vasopressin V2 receptor, has been found to improve hyponatremia in patients with SIAD. We report the case of a 65-years-old male, who developed recurrent episodes of hyponatremia after severe traumatic brain injury, TBI, with polytrauma (CGS=8, decompressive craniectomy, spontaneous breathing by percutaneous tracheotomy). During hospitalization in intensive care unit he resumed alertness and received i.v. hypertonic saline infusion and oral...

Overt hypercortisolism causes reduction in bone mass and density. The effects of subclinical Cushing’s syndrome (SCS) on bone markers and structure are still debated. We therefore studied 56 patients with adrenal incidentaloma: group A=35 (20 F 15 M, age 43–79, mean 64.6±1.5; BMI 29.9±0.9 kg/m2) without evidence of hypercortisolism, and group B=21 (10 F 11 M, age 51–76, mean 63.4±1.9, BMI 28.0±1.2 kg/m2) with SCS (i.e. w...

Teriparatide is a skeletal anabolic drug that represents the first and new class of bone anabolic agents able to increase bone formation, bone mineral density and strength. Several studies demonstrated the efficacy of this drug in post-menopausal and glucocorticoid-induced osteoporosis, but few data are available on the effects of the drug in long-term therapy in humans, so far.We analyzed a population of 135 women in post-menopausal age treated with ter...

GH and insulin-like growth factor 1 (IGF1) are known to promote breast carcinogenesis. Breast cancer (BC) incidence in not increased in female acromegalic patients, but mortality is greater as compared to general population. We previously demonstrated that GH/IGF1 excess influences BC response to therapy, possibly accounting for the increased mortality. We indeed showed that GH and IGF1 induce cell proliferation of a BC cell line, the MCF7 cells, providing protection towards t...

GH hypersection results in biventricular concentric hypertrophy and a progressive contractile impairment whereas cardiac hypotrophy and impaired diastolic filling and left ventricular function have been reported in GH deficiency (GHD). No information on cardiac performances and structure are available about those acromegalic patients in whom successful treatment made their GH and IGF-I secretion similar to those in GHD patients. In order to study the functional and structural ...