Endocrine Abstracts

Cabergoline (CAB), a potent dopamine agonist, is one of the most effective neuromodulatory drug in the second line treatment of patients with Cushing’s disease (CD). The aim of the current study was to estimate the predictive value of the acute CAB administration on short and long term responsiveness to CAB treatment. Twenty CD patients (6 males, 14 females, 12–60 years) entered the study. The acute CAB test was performed evaluating serum cortisol every hour for 6 h ...

Biochemical control of acromegaly is currently defined by the achievement of GH suppression after oral glucose tolerance test (OGTT) and of normal age- and gender-matched IGF1 levels. OGTT is believed to inhibit somatotropin secretion by enhancing central somatostatinergic tone; thus, the use of this test in evaluating biochemical control in acromegalic patients on somatostatin analogues (SSA) is questionable. To gain further insights into this topic, we analyzed basal and nad...

Activation of the Ras/ERK pathway and stimulation of proliferation by integrins in thyroid cells requires CaMKII activation. To date, whether this role of CaMKII is a general mechanism or is restricted to integrin signalling is unknown. As oncogenic activation of the Ras/ERK pathway by mutated Ras, RET/PTC and Trk is frequent in papillary thyroid carcinoma (PTC), we investigated the expression and activation level of CaMKII in PTC primary culture and in stable cell lines.<...

Human malignant pleural mesothelioma (MPM) is a rare but aggressive neoplasm, arising from pleural mesothelial cells, generally due exposure to asbestos. Of note, different growth factors and their receptors are involved in the pathogenesis of MPM and resistance to therapy. Chemotherapy with cisplatin (cis) and antifolates, like pemetrexed (PEM), is the first-line treatment for inoperable MPM. Growth hormone-releasing hormone (GHRH), besides stimulating GH secretion in the ant...

CAH has been described to be associated to infertility and semen abnormalities in 40–70% of adult male patients, because of hypogonodotropic hypogonadism, consequent to the increased levels of sex steroids, but mostly because of the frequent presence of testicular adrenal rest tumors. The aim of the current study was to evaluate semen parameters and hormonal setting in a subset of men with CAH. Fourteen patients with classical CAH due to 21-HD (six with simple virilizing,...

Differentiated thyroid cancers (DTC) have an excellent prognosis with a 10 year disease-related survival of 85%. However, about 5% of DTC patients develop an aggressive disease with distant metastasis and loss of radioactive iodine (RAI) avidity. An effective treatment is not available for these patients and survival rates are less than 15%. The MAP-kinase pathway is strikingly involved in the pathogenesis of DTC. This is why compounds striking the MAP-Kinase pathway may be us...

Background: The prostate cancer (CaP) is among the most commonly diagnosed cancers, accounting for about 20% of all newly diagnosed cancers. Subject of recent studies is the role of vitamin D in the pathogenesis of CaP. Literature data speculated about the role of vitamin D in the progression of Cap. In addition, several studies have shown an association between VDR gene polymorphism FokI and CaP especially in the Asian population.Objective: The aim of t...

Introduction: Acromegaly is a systemic disease frequently characterized by hypogonadotropic hypogonadism, endothelial dysfunction and diseases classically associated with an increased incidence of erectile dysfunction (ED) (hypertension, dyslipidemia, impaired glucose metabolism) and premature ejaculation (prostatic disease). Furthermore, the high prevalence of ED may negatively affect ejaculatory function. The purpose of this study was to evaluate the ejaculatory function of ...

Introduction: Acromegaly is frequently characterized by hypogonadotropic hypogonadism, endothelial dysfunction, hypertension and impaired glucose and lipid metabolism, classically associated with impaired sexual function (SF). There are no literature data on the SF in acromegaly. The purpose of this study was to evaluate the SF of patients with acromegaly.Patients and methods: Twenty-two patients (47.8±8.6 years) were enrolled into the study. Among ...

Context: Although unexplained conflicting results are present in the literature, most of studies report the association of BRAFV600E in papillary thyroid carcinoma (PTC) with a more advanced disease and with a worst prognosis. We recently demonstrated that in most of the cases PTC consists of a mixture of tumour cells with wild-type and mutant BRAF. Hence, we examined the association of percentage of BRAFV600E alleles with clinicopathologic parameters at diagnosis and disease ...