Search results for "double-blind method"
showing 10 items of 631 documents
Naloxone increases the response of growth hormone and prolactin to stimuli in obese humans.
1987
Opiates stimulate the growth hormone and prolactin responses to stimuli in non-obese humans. Obese patients, however, show lowered growth hormone and prolactin responses and raised beta-endorphin levels. We therefore investigated the effect of the opiate antagonist naloxone on the stimulated growth hormone and prolactin secretions in a controlled double-blind study in obese patients. All patients received 200 micrograms TRH and 0.5 g/kg b.w. arginine together with 2 mg of naloxone or placebo i.v. in a randomized sequence. The TRH- and arginine-induced increases in prolactin and growth hormone were significantly greater after administration of naloxone (p less than 0.05). Naloxone also produ…
Effect of the GLP-1 analog liraglutide on satiation and gastric sensorimotor function during nutrient-drink ingestion
2012
Background/Aim:Liraglutide, a glucagon-like peptide-1 analog, induces weight loss. We investigated whether liraglutide affects gastric accommodation and satiation by measuring the intragastric pressure (IGP) during nutrient-drink consumption and using the barostat technique.Methods:Ten healthy volunteers (HVs) were tested after placebo, 0.3, 0.6 or 1.2 mg liraglutide administration. IGP was studied during intragastric nutrient-drink (1.5 kcal ml(-1)) infusion (60 ml min(-1)), while the HVs scored their satiation on a graded scale until maximal satiation. In a separate session, isobaric distentions were performed using the barostat with stepwise increments of 2 mm Hg starting from minimal di…
Neuroendocrine response to antipsychotics: effects of drug type and gender
1999
Abstract Background: To study the influences of drug type and gender on the neuroendocrine response to neuroleptic treatment, we compared the endocrine actions of two neuroleptics with different receptor affinity profiles—a substituted benzamide, amisulpride, a selective D 2 -like dopamine antagonist; and a thioxanthene, flupenthixol, a mixed D 1 /D 2 -like antagonist also blocking serotonin, H 1 , and D 1 receptors—on anterior pituitary hormone secretion in schizophrenic patients (DSM-III-R). Methods: Blood was withdrawn at 15-min intervals to assess basal secretion of prolactin, growth hormone (GH), and thyroid-stimulating hormone (TSH). Four hundred micrograms of thyrotropin-releasing ho…
Food-additive-induced urticaria: a survey of 838 patients with recurrent chronic idiopathic urticaria
2005
<i>Background:</i> Recurrent chronic idiopathic urticaria (RCIU) is a common skin condition that affects 0.1–3% of the population in the USA and Europe and accounts for nearly 75% of all ‘ordinary’ chronic urticaria (CU) cases. <i>Methods:</i> We studied 838 consecutive patients with RCIU referred to hospital between 1998 and 2003. Patients with known causes of CU were excluded. Clinical history, physical examination, and symptom diaries were evaluated during two periods, a diet-free period (1 week) and a food-additive-free diet (FAFD) period (4 weeks), respectively, and two double-blind placebo-controlled (DBPC) challenges of six food additives were administered. Th…
Visual Performance of Four Simultaneous-Image Multifocal Contact Lenses Under Dim and Glare Conditions
2014
To assess and compare the effects of four simultaneous-image multifocal contact lenses (SIMCLs), and those with distant-vision-only contact lenses on visual performance in early presbyopes, under dim conditions, including the effects of induced glare.In this double-masked crossover study design, 28 presbyopic subjects aged 40 to 46 years were included. All participants were fitted with the four different SIMCLs (Air Optix Aqua Multifocal [AOAM; Alcon], PureVision Multifocal [PM; BauschLomb], Acuvue Oasys for Presbyopia [AOP; JohnsonJohnson Vision], and Biofinity Multifocal [BM; CooperVision]) and with monofocal contact lenses (Air Optix Aqua, Alcon). After 1 month of daily contact lens wear…
Objective analysis of contact lens fit.
2015
Purpose: To assess the validity and repeatability of objective compared to subjective contact lens fit analysis. Methods: Thirty-five subjects (aged 22.0. ±. 3.0 years) wore two different soft contact lens designs. Four lens fit variables: centration, horizontal lag, post-blink movement in up-gaze and push-up recovery speed were assessed subjectively (four observers) and objectively from slit-lamp biomicroscopy captured images and video. The analysis was repeated a week later. Results: The average of the four experienced observers was compared to objective measures, but centration, movement on blink, lag and push-up recovery speed all varied significantly between them (p 0.05). The 95% conf…
Therapeutic Drug Monitoring of Naltrexone and 6β-Naltrexol During Anti-craving Treatment in Alcohol Dependence: Reference Ranges.
2018
Aims Aim of this study was to associate concentration of naltrexone and its major active metabolite 6β-naltrexol in blood with therapeutic outcome during treatment with naltrexone in subjects with alcohol dependence. Treatment with the μ-opiate receptor antagonist naltrexone has been shown to reduce craving for alcohol and alcohol intake in patients suffering from alcohol dependence. Short summary This article shows the use of therapeutic drug monitoring in alcohol dependent patients, who are treated with naltrexone. The plasma concentrations of naltrexone and 6β-naltrexol showed high inter-individual variability. They were predictive for treatment response, as they correlated significantly…
A double-blind study comparing paroxetine and maprotiline in depressed outpatients.
1997
A double-blind multicenter randomized parallel group study comparing paroxetine and maprotiline was carried out in a total of 544 outpatients. Included were patients with varying degrees of severity of depressive symptoms who fulfilled modified RDC criteria for either Minor or Major Depression and showed a HAMD-17 score of > or = 13. No concomitant benzodiazepine treatment was allowed. Duration of treatment was 6 weeks, after an initial wash-out period. Doses were fixed during the first 3 weeks of treatment, patients receiving either 20 mg paroxetine or 100 mg maprotiline daily. An option for dose escalation was provided for insufficient responders after 3 weeks. The weekly assessments comp…
Teprotumumab for Thyroid-Associated Ophthalmopathy
2017
Thyroid-associated ophthalmopathy, a condition commonly associated with Graves' disease, remains inadequately treated. Current medical therapies, which primarily consist of glucocorticoids, have limited efficacy and present safety concerns. Inhibition of the insulin-like growth factor I receptor (IGF-IR) is a new therapeutic strategy to attenuate the underlying autoimmune pathogenesis of ophthalmopathy.We conducted a multicenter, double-masked, randomized, placebo-controlled trial to determine the efficacy and safety of teprotumumab, a human monoclonal antibody inhibitor of IGF-IR, in patients with active, moderate-to-severe ophthalmopathy. A total of 88 patients were randomly assigned to r…
Risperidone Versus Haloperidol and Amitriptyline in the Treatment of Patients With a Combined Psychotic and Depressive Syndrome
1998
In a multicenter, double-blind, parallel group trial, the efficacy of risperidone (RIS) was compared with a combination of haloperidol and amitriptyline (HAL/AMI) over 6 weeks in patients with coexisting psychotic and depressive symptoms with either a schizoaffective disorder, depressive type, a major depression with psychotic features, or a nonresidual schizophrenia with major depressive symptoms according to DSM-III-R criteria. A total of 123 patients (62 RIS; 61 HAL/AMI) were included; the mean daily dosage at endpoint was 6.9 mg RIS versus 9 mg HAL combined with 180 mg AMI. Efficacy results for those 98 patients (47 RIS; 51 HAL/AMI) who completed at least 3 weeks of double-blind treatme…