Endocrine Abstracts

Objective: Cushing’s disease (CD) is difficult to diagnose because of its rarity and because its most common symptoms can overlap with those of other more common conditions. Remission rates in the postoperative vary between 55–85%. Overall, the mean time to diagnosis was 38 months. The objective of this study was to describe whether there is any pre-surgical clinical data that predicts CD remission after TSS.Patients and Methods: Retrospectiv...

Objective: Remission of Cushing’s disease (CD) in the postoperative vary between 55–85%, recurrence of up to 25%. Remission and recurrence rates vary dependent on tumor size and neurosurgical expertise. The objective of this study is to describe whether there are clinical data that help us to predece recurrence of CD after transsphenoidal surgery (TSS).Patients and Methods: Retrospective analysis of patients who underwent as TSS for CD. Varia...

Background: Germ cell tumors (germinoma, teratoma, embryonal carcinoma, yolk sac tumor and choriocarcinoma) constitute 0.3–3.4% of all primary intracraneal tumors. Germinoma is the most common and of better prognosis.Aim: Describing the behaviour of germ cell tumors of the pituitary–hypothalamic region: location, clinical characteristics, diagnosis and follow-up.Material and methods: Review of medical records of patients ...

Introduction: Current guidelines propose temozolomide (TMZ) as the first-line chemotherapy for aggressive pituitary neuroendocrine tumors (PitNETs), but no clinical trials have been conducted and clinical experience in this context is limited.Patients and methods: A retrospective study of patients with aggressive pitNETs treated with TMZ was conducted by the members of the Neuroendocrinology Working Area of the Spanish Society of Endocrinology and Nutrit...

Intracranial tumors (IT) comprise a heterogenous group of neoplasias (e.g., pituitary/brain tumors and craniopharyngiomas), characterized by difficult diagnosis based on MRI, challenging prognostic predictors and lack of effective therapeutic strategies. In addition, these tumors are usually associated with neurological disorders and severe comorbidities (e.g., those associated with Cushing syndrome, Acromegaly, etc.), worsening the quality life of patients. In this context, s...

Methods: Descriptive retrospective study of the clinical outcomes and RNA expression in aggressive pituitary tumors treated with temozolomide. RNA expression was studied in tumor samples normalized to housekeeping genes including GH, POMC, PRL, αsub, FSH, LH, TSH, sst1, sst2, sst3, sst5, sst5b, sst5c, DR1, DR2T, DR2L, DR4, DR5, Ghrelin, In1-Ghrelin, GOAT, GHRR1b, AVPR1b, GHRH-R, GnRH-R, Ki-67, PTTG1, CRHR1.Results: Ten patients were treated. 30% (3)...

Objective and methods: Recent studies suggest that altered alternative splicing and, consequently, appearance of an abnormal splicing pattern and even of aberrant/oncogenic splicing-variants, represent a common molecular feature of most tumor pathologies, including Pituitary Neuroendocrine Tumors (PitNETs). However, the putative alteration, pathophysiological role and potential therapeutic utility of splicing machinery components [i.e. spliceosome-components (SCs) and splicing...

Pituitary adenomas (PA) comprise a commonly underestimated pathology in terms of incidence and associated morbimortality. To date, somatostatin and dopamine analogs represent the main medical treatment, but an appreciable subset of patients are resistant or poorly responsive to these drugs. Therefore, the search for new approaches to control tumor growth and/or hormone secretion is crucial. Biguanides such as metformin (MF; commonly used to treat type-2 diabetes), phenformin (...

Pituitary adenomas (PA) comprise a commonly underestimated pathology in terms of incidence and associated morbi-mortality. Although somatostatin analogs and dopamine antagonists constitute the main medical treatments for PAs, an appreciable subset of patients are resistant or poorly responsive to these drugs and hence is crucial the search for new therapies. Biguanides such as metformin (MF; commonly used to treat type-2 diabetes), phenformin (PF) and buformin (BF) have been s...

Pituitary adenomas are usually benign. However, a significant number of pituitary adenomas show an aggressive behaviour, with local invasion, increased risk of recurrence after surgery and lack of therapeutic response. In this study, we aimed to determine whether invasive and non-invasive pituitary adenomas display differences in clinical features and molecular parameters. In this retrospective descriptive study, 46 pituitary adenomas were analysed. Invasiveness was defined as...