90 research outputs found
The truncated somatostatin receptor sst5TMD4 stimulates the angiogenic process and is associated to lymphatic metastasis and disease-free survival in breast cancer patients
This work has been funded by the following grants:
BIO-0139, CTS-1406, PI-0639-2012, BFU2010-19300,
BFU2013-43282-R, PI13/00651 and CIBERobn (to RML
and JPC); PI-0541-2013 and “Miguel Servet” program (to
MDG); PI13/00132, RETICC RD12/0036/0007, S2010/
BMD-2303 (to GMB). CIBER is an initiative of Instituto
de Salud Carlos III, Ministerio de Sanidad, Servicios
Sociales e Igualdad, Spain
Rapid and sustained reduction of serum growth hormone and insulin-like growth factor-1 in patients with acromegaly receiving lanreotide Autogel® therapy: a randomized, placebo-controlled, multicenter study with a 52 week open extension
The study was designed to evaluate the long-term efficacy and safety of the 28-day prolonged-release Autogel formulation of the somatostatin analogue lanreotide (Lan-Autogel) in unselected patients with acromegaly. The study comprised four phases: washout; a double-blind comparison with placebo, at a single randomized dose (60, 90 or 120 mg) of Lan-Autogel; a single-blind, fixed-dose phase for four injections (placebo group was re-allocated to active treatment); and eight injections with doses tailored according to biochemical response. Serum samples were assessed for growth hormone (GH) and insulin-like growth factor-1 (IGF-1) levels, at weeks 4, 13, 14, 15, 16, 32 and 52. 108 patients were enrolled and 99 completed 52 weeks’ treatment. Four weeks after the first injection, serum GH levels decreased by >50% from baseline in 63% of patients receiving Lan-Autogel compared with 0% receiving placebo (P < 0.001). After four injections, 72% of patients had a >50% reduction in GH levels; 49% patients achieved GH levels ≤ 2.5 ng/ml; 54% had normalized IGF-1; and 38% achieved the combined criterion of GH level ≤ 2.5 ng/ml and normalized IGF-1. The corresponding proportions by week 52 were 82, 54, 59 and 43%, respectively. In patients not requiring dose escalation to 120 mg, 85% achieved biochemical control (combined criterion). Treatment was well tolerated by all patients. In conclusion, Lan-Autogel was effective in controlling GH and IGF-1 hypersecretion in patients with acromegaly and showed a rapid onset of action
Systemic therapy of Cushing’s syndrome
Cushing’s disease (CD) in a stricter sense derives from pathologic adrenocorticotropic hormone (ACTH) secretion usually triggered by micro- or macroadenoma of the pituitary gland. It is, thus, a form of secondary hypercortisolism. In contrast, Cushing’s syndrome (CS) describes the complexity of clinical consequences triggered by excessive cortisol blood levels over extended periods of time irrespective of their origin. CS is a rare disease according to the European orphan regulation affecting not more than 5/10,000 persons in Europe. CD most commonly affects adults aged 20–50 years with a marked female preponderance (1:5 ratio of male vs. female). Patient presentation and clinical symptoms substantially vary depending on duration and plasma levels of cortisol. In 80% of cases CS is ACTH-dependent and in 20% of cases it is ACTH-independent, respectively. Endogenous CS usually is a result of a pituitary tumor. Clinical manifestation of CS, apart from corticotropin-releasing hormone (CRH-), ACTH-, and cortisol-producing (malign and benign) tumors may also be by exogenous glucocorticoid intake. Diagnosis of hypercortisolism (irrespective of its origin) comprises the following: Complete blood count including serum electrolytes, blood sugar etc., urinary free cortisol (UFC) from 24 h-urine sampling and circadian profile of plasma cortisol, plasma ACTH, dehydroepiandrosterone, testosterone itself, and urine steroid profile, Low-Dose-Dexamethasone-Test, High-Dose-Dexamethasone-Test, after endocrine diagnostic tests: magnetic resonance imaging (MRI), ultra-sound, computer tomography (CT) and other localization diagnostics. First-line therapy is trans-sphenoidal surgery (TSS) of the pituitary adenoma (in case of ACTH-producing tumors). In patients not amenable for surgery radiotherapy remains an option. Pharmacological therapy applies when these two options are not amenable or refused. In cases when pharmacological therapy becomes necessary, Pasireotide should be used in first-line in CD. CS patients are at an overall 4-fold higher mortality rate than age- and gender-matched subjects in the general population. The following article describes the most prominent substances used for clinical management of CS and gives a systematic overview of safety profiles, pharmacokinetic (PK)-parameters, and regulatory framework
Prolactinomas, Cushing's disease and acromegaly: debating the role of medical therapy for secretory pituitary adenomas
Pituitary adenomas are associated with a variety of clinical manifestations resulting from excessive hormone secretion and tumor mass effects, and require a multidisciplinary management approach. This article discusses the treatment modalities for the management of patients with a prolactinoma, Cushing's disease and acromegaly, and summarizes the options for medical therapy in these patients
DON content in oat grains in Norway related to weather conditions at different growth stages
High concentrations of the mycotoxin deoxynivalenol (DON), produced by Fusarium graminearum have occurred frequently in Norwegian oats recently. Early prediction of DON levels is important for farmers, authorities and the Cereal Industry. In this study, the main weather factors influencing myco-toxin accumulation were identified and two models to predict the risk of DON in oat grains in Norway were developed: (1) as a warning system for farmers to decide if and when to treat with fungicide, and (2) for authorities and industry to use at harvest to identify potential food safety problems. Oat grain samples from farmers’ fields were collected together with weather data (2004–2013)\ud
A mathematical model was developed and used to esti-\ud
mate phenology windows of growth stages in oats (til-\ud
lering, flowering etc.). Weather summarisations were\ud
then calculated within these windows, and the Spearman\ud
rank correlation factor calculated between DON-\ud
contamination in oats at harvest and the weather\ud
summarisations for each phenological window. DON\ud
contamination was most clearly associated with the\ud
weather conditions around flowering and close to har-\ud
vest. Warm, rainy and humid weather during and around\ud
flowering increased the risk of DON accumulation in\ud
oats, as did dry periods during germination/seedling\ud
growth and tillering. Prior to harvest, warm and humid\ud
weather conditions followed by cool and dry conditions\ud
were associated with a decreased risk of DON accumu-\ud
lation. A prediction model, including only pre-flowering\ud
weather conditions, adequately forecasted risk of DON\ud
contamination in oat, and can aid in decisions about\ud
fungicide treatments
Metodo per modulare la proliferazione del carcinoma midollare della tiroide (MTC)
Si descrive l'impiego di analoghi della somatostatina per modulare la proliferazione di cellule di carcinoma midollare della tiroide
Composti farmaceutici che inibiscono la proliferazione di adenomi ipofisari e modi d’uso che ne derivano
Si descrive l'utilizzzo di analoghi della somatostatina com inibitori della vitalità cellulare ipofisaria in vitro
Pharmaceuticals compositions which inhibit vascular proliferation and method of use thereof
The present invention relates to a method of treating vascular proliferation in a patient in need thereof. The method includes the step of administering a therapeutically effective amount of a type-1 somatostatin agonist to said patient
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