Endocrine Abstracts

Introduction: Kisspeptins and their cognate receptor GPR-54 (Kiss-1) were found to be regulators of the hypothalamo-pituitary–gonadal axis. It is under debate if the onset of central precocious puberty (CPP) could be triggered by early increase of kisspeptin. We aimed to assess serum kisspeptin levels in girls in order to evaluate its potential as a reliable biochemical marker for differential diagnosis of CPP.Materials and methods: The girls enroll...

Objective: To study the role of the GnRH analogue Triptorelin in the assessment of the hypothalamic-pituitary-gonadal axis, in guiding therapy for infertility and identifying hypogonadic patients with recovery potential (functional hypothalamic dysfunction and idiopathic hypogonadotropic hypogonadism).Methods: Dynamic testing using subcutaneous injection of 100 μg Triptorelin was performed in 29 adults (11 women) with hypogonadotropic hypogonadism (...

Background: The prevalence of precocious puberty (PP) and its relationship to optic pathway tumours in patients suffering from neurofibromatosis type 1 (NF1) is significantly greater than in normal population.Objectives: We present a rare case of precocious puberty in neurofibromatosis type 1 which is not associated with optic pathway tumour but with a tuber cinereum hamartoma.Case report: We present the case of a 5-year and 5-mont...

Introduction: Isolated acquired ACTH deficiency is rare; it may be due to hypophysitis and association with other autoimmune diseases was reported.Case report: E.L, female, aged 34, was diagnosed with primary autoimmune hypothyroidism and premature ovarian failure; levothyroxine and estroprogestins were administered. Suddenly, the patient developed vomiting, shivers without fever and soon coma installed, with tonic-clonic seizures. There was no history o...

Prolactinoma (PRM) treatment is based upon dopamine agonists, cabergoline (CAB) being one of the most used in the last decade. Sensitivity to CAB varies in terms of tumour volume and PRL secretion, up to 8–15% of PRM being defined as resistant. Since it is known that increasing the dosage improves the response rate, we aimed to measure plasma CAB levels in PRM patients under this treatment in a prospective interventional study.Patients and methods: ...

Introduction: There are high levels of anterior pituitary hormones in the cerebrospinal fluid (CSF), i.e. beyond the blood–brain barrier, in many patients with pituitary tumors.Aim: To assess the influence of CSF pituitary hormones on brain functions reflected by sleep architecture and sleep apnea.Method: Twenty-nine patients (17 women, 12 men) with pituitary adenomas (20 acromegaly, 5 nonfunctioning pituitary adenomas, 4 prol...

Cabergoline (CAB) is a selective dopamine D2-receptor agonist with long-lasting action, highly effective in treating micro- and macroprolactinoma. However, the clinical response to cabergoline can be seen only after several months of treatment, allowing the tumor shrinkage and decrease of prolactin. Despite most prolactinomas are responsive to CAB, there are up to 8% of cases in which tumor responsivity is limited. In order to asses the sensitivity to Cab, we aimed to develop ...

Primary therapy in prolactinomas, the most frequent pituitary adenomas, consists in ergot derivatives dopamine agonists (bromocriptine or cabergoline) which lowers prolactin levels and shrink the tumour. Bromocriptine was the first drug used, but the therapeutic levels are attained after several days/weeks, therefore an acute suppression test is not possible. However, the biological response is variable and 10% of prolactinomas are resistant to medical therapy. In order to eva...

Insulin resistance is possibly playing an underlying pathogenic role in the polycystic ovary syndrome (PCOS) and although is not a part of its definition, it appears in 50-90% of PCOS women. Polycystic ovary syndrome is also frequently associated with obesity; women suffering of PCOS seem to be at a great risk of developing a metabolic syndrome.Objectives: The aim of our study was to determine the prevalence of the metabolic syndrome in a population of 4...

Background: Primary aldosteronism is associated with increased vascular mortality and morbidity.Aims: We aimed to assess metabolic and hormonal profile differences in patients with primary aldosteronism (PA) compared with patients with essential hypertension (EH).Patients and methods: Thirty-one patients (11 M/20 F) with primary aldosteronism, aged 46.2±12.9 years and 64 patients (24 M/40 F) with essential hypertension, aged 4...