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Filter by:Introduction This study evaluates the effect on glucose, lipid and bone metabolism following knee orthopedic procedures in healthy and physically active individuals. The sedentary rehabilitation period following these procedures may impact negatively on glucose, lipid and bone metabolic pathways, whereas the more physically active rehabilitation period instituted 6 weeks after surgery is hypothesized to impact positively. Perspective This study will establish whether the well-known effects on glucose, lipid and bone metabolism of a sedentary lifestyle can be observed already following 6 weeks of physical inactivity in otherwise healthy and physically fit young and middle aged individuals. Investigators will thereby add knowledge to previous findings following strict bed-rest in healthy individuals on glucose, lipid and bone metabolism. In a clinical perspective it is important to examine the extent to which healthy individuals deteriorate in various metabolic pathways to better understand the pathophysiology behind these defects both in healthy individuals and in patients, who undergo bed rest or an equal reduction in physical activity as part of their rehabilitation. Study design 16 physical active non-diabetic individuals of age 18 - 50 years who are undergoing knee surgical procedures at the Arthroscopic Center at Amager/Hvidovre Hospitals are recruited as cases for this case-control study. 10 non-diabetic control subjects matched for age, gender and physical activity are recruited to establish a reference level. - The individuals will bring in morning spot urine for measurement of soluble urokinase plasminogen activating receptor (suPAR), creatinine, albumin and orosomucoid. Weight and height and waist and hip circumference will be measured. - Oral glucose tolerance test (OGTT) with ingestion of 75 g glucose during 5 min from baseline (0 min). Plasma for glucose, insulin, C-peptide, non-esterified fatty acid (NEFA) will be drawn - Before OGTT blood will be drawn for measurement of HbA1c, total cholesterol, LDL, HDL, triglyceride, Na, K, creatinine, hemoglobin (HgB), C-reactive protein (CRP), leukocytes, alanintransaminase (ALAT), alkaline phosphatase, Ca++, D vitamin, TSH, bone turnover markers (BTM), suPAR, interleukin 6 (IL6), TNFa, high-sensitivity C-reactive protein (hsCRP), lipid density profiling and lipid particle size. - Dual energy X-ray absorptiometry (DXA) of hip, lumbar columna, visceral and subcutaneous fat is measured by Hologic Discovery scanner.
The primary purpose of the present study is to evaluate the diagnostic validity of eye tracking measurements acquired during viewing of socially-relevant stimuli in predicting ASD diagnosis. The secondary purpose was to explore the potential prognostic value of eye tracking measures through cross-sectional associations with non-verbal cognitive ability. Deficits in eye gaze are a hallmark sign of autism. A large and growing body of research supports the ability of eye-tracking based measurements to sensitively discriminate individuals with ASD and healthy participants. These investigations have identified that the core deficit in autism as disruption of social attention, reflecting an inability to appropriately engage and track socially- and emotionally-relevant aspects of the visual world. Thus, eye gaze tracking, acquired during viewing of socially-relevant stimuli, may be a useful approach to identifying objective markers of ASD. Eye tracking also carries the advantages of being less intrusive and expensive than MRI and genetic testing and specifically focuses on the core neurobehavioral characteristics of ASD - abnormalities in social attention. After diagnosis of ASD, key clinical tasks in young children involve determining an accurate prognosis and tracking the progress of early interventions. Currently, the only prognostic indicators are clinical observations (subjective and expensive) and non-verbal cognitive ability testing (difficult to acquire, time-consuming, unavailable in many settings). Recently, eye gaze tracking was found to predict functional outcomes. Thus, in addition to being an objective marker for ASD, eye tracking measurements have potential to be useful for predicting cognitive and functional outcomes. Similarly, the only available methods for tracking treatment progress are parental reports (highly subjective), clinical observations (subjective and expensive), and cognitive measurements (expensive and unavailable in many settings. This study will evaluate, using cross-section data, the potential for eye tracking data to serve as a proxy for non-verbal cognitive ability scores in determining prognosis for ASD-affected children. Additionally, this study will evaluate the test re-test reliability of eye tracking parameters that can potentially be used to track treatment progress.
Psychological treatments are effective, but take a long time and can be burdensome. Therefore, avenues to optimize behavioral treatments are needed. Despite important advancements, neuroscience has had a limited effect on psychotherapy development. Therefore, one paradigm shift would be to develop neuroscience informed behavioral treatments. The investigators identified from the literature a problem that affects several mental disorders (emotion dysregulation) and a neural circuit that underlies this important concern. They found that this circuit is dysfunctional in those with psychopathology but can be changed with treatment. The goal is in one session to train this brain network to operate more efficiently and to test the short and long term effects of this intervention. The investigators plan to engage this brain network using a traditional psychotherapy strategy (cognitive restructuring) and to enhance learning using repetitive transcranial magnetic stimulation (rTMS), a neuromodulation technique through which magnetic stimulation enhances the electrical activity in brain areas close to the scalp. The study team proposed two studies to examine this novel approach, In one of the studies 83 participants were enrolled and 47 eligible participants were divided into 3 groups. All participants were trained in emotion regulation by first being asked to remember an event where they experienced a negative emotion and then being instructed either to think differently about the event, or to wait. Participants simultaneously underwent either active (left or right side of brain) or sham rTMS. In a second study 65 participants were enrolled, and 31 were assigned to either active left or sham rTMS guided using neuroimaging results. Across both studies, the investigators measured regulation in the lab and during a-week long naturalistic assessment. Participants in the second study returned for a follow up neuroimaging visit at the end of this week. Participants returned for a one moth follow up assessment and to rate feasibility, acceptability, and provide feedback. This proof of concept set of studies demonstrated feasibility and preliminary efficacy for this approach, which opens new frontiers for neuroscience informed treatment development.
The acoustic neuromodulation trial (ANM-T) is a two-phase, single-site, pilot randomized clinical trial examining the feasibility of completing a larger scale efficacy study of a novel treatment of non-linear modulated acoustic stimuli to reduce anxiety severity in youth with anxiety disorders. The primary objective is to establish the feasibility of a blinded randomized controlled trial of ANM for childhood anxiety disorders.
Study in 400 patients with bipolar disorder I or II, of relapse risk factors. The principal objective of this research is to test the predictive value of core vulnerability dimensions such as affective instability and emotional reactivity, measured by validated questionnaires (AIM and ALS) on recurrence of affective major episode (depressed, hypomanic or manic) during a 24 months prospective follow-up. In addition, several arguments suggest that inter-individual variability in the risk of relapse is influenced by genetic factors. In particular, the implication of such factors have been demonstrated in rapid cycling or antidepressants induced mania. However, this has never been tested in cohorts followed prospectively. Finally, the existence of neuropsychological deficits in bipolar disorder is well documented and their role in the risk of relapse is suspected. Yet the nature of these deficits, their origin and evolutionary course remain poorly investigated. In summary, the secondary objectives of this research are the study of the influence of these other clinical, neuropsychological and genetic factors on the risk of relapse. • Scientific rationale The dimensions of affective instability and emotional reactivity, are considered core psychological and temperamental vulnerability dimensions to bipolar disorder. Differences in levels of instability and reactivity may account for the inter-individual variability observed in bipolar disorder in terms of risk of relapse. These dimensions are measured using validated questionnaires (Affective Instability Measure (AIM) and Affective Lability Scale (ALS)). Relapsing is defined as the occurrence of a depressive episode, hypomanic, manic or mixed episode (DSMIV criteria). Other factors that may influence the risk of relapse have been suggested in the literature but have not been formally tested in prospective studies: 1. cognitive deficits: the existence of neuropsychological deficits in bipolar disorder are well documented and their role in the risk of relapse is suspected. Yet the nature of these deficits, their origin and their course remain poorly investigated. Indeed, some appear to be related to the neurotoxicity of the episodes themselves, the other being related to the vulnerability to bipolar disorder 2. The involvement of genetic vulnerability factors in bipolar disorder is widely demonstrated. Several arguments suggest the implication of genetic factors in the risk of relapse. This is the case for some outcome patterns such as rapid cycling or antidepressants induced mania. Again, this has never been tested in cohorts followed prospectively. 3. The role of certain inflammatory and infectious factors in the etiology of bipolar disorder has been suggested but it is clear whether these biomarkers are "state" or "traits". Thus, the role of neurotoxic inflammatory or infectious factors in relapse mood has never been tested in a prospective follow up studies. - Main objective of the project To determine if the scores of AIM and ALS, assessed at baseline in euthymic bipolar patients is associated with relapse in patients during a 2 years follow-up period. - Secondary objectives of the project Determine if the neuropsychological performance at T0, measured in euthymic patients predict relapse during a 2 years follow-up period. Determine whether the neuropsychological deficits observed in euthymic bipolar patients that contribute to functional impairment worsen with time. DNA collection to test the involvement of candidate genes Serum collection to study the biological and infectious biomarkers • Methodology Prospective follow up studies. Multicenter.
The purpose is threefold: Assess the anxiety reduction, the mood positive effect and the rise of quality of life when using methods of relaxation combined with virtual reality with patients suffering from generalized anxiety disorder in comparison of the effect of traditional relaxation therapy. Observe and evaluate the effect of perceived presence in synthetic environments in the virtual experience of relaxation. Evaluate the therapeutic efficacy of stereoscopy during exposure to relaxing virtual environments for the treatment of generalized anxiety disorder. It is a comparative, randomized, two groups study (29 in each group): - Relaxation optimized virtual reality - Classical relaxation (without Virtual Reality). The protocol comprised for each groups 7 relaxing sessions (with or without virtual reality epending on the group). Each session lasted for approximately 30 to 35 minutes, including a 5-minute pause between immersive trials, in order to avoid cyber sickness in the virtual reality group. Expected results: a measurable therapeutic improvement produced by the combination of relaxation and virtual and its additional effect when compared to the traditional treatment. Measurements of variables and therapeutic effects will be carried out with psychometric measures. The creation process of the relaxing virtual environments has already been completed. The virtual environments are ready for use. The apparatus needed and in our possession include: - A laptop for generating virtual environments - A stereoscopic display - Apparatus for physiological measurements
Visual disorders are often overlooked in the treatment of cognitive disorders of the elderly. Yet the visual deficit impacts the quality of life, the evolution of the autonomy and psycho-behavioral disorders in cognitive diseases. The main objective of the study is to evaluate the prevalence of visual disorders among elderly patients at consultant outpatient center of Nantes clinical gerontology as part of the consultation geriatric memory. Secondary objectives are to describe ophthalmological diseases detected and taken into the proposed ophthalmic load, to determine if there are associations between eye diseases and cognitive disorders, to estimate the proportion of patients who may have an ophthalmologic evaluation to determine the cognitive profiles and geriatric evaluation and ocular pathological, depending on the assessment of arterial stiffness. The results of this study will build a testing strategy to promote access of older patients with cognitive impairment to vision care.
Post-surgical opioid prescribing intended for the short-term management of acute pain may lead to long-term opioid use, and its associated harms. This study was undertaken to determine the prevalence of prolonged post-surgical opioid use, and patient-related factors associated with prolonged post-surgical opioid use.
This is a Phase 2, single center, single-dose, double-blind, placebo-controlled, 2-way crossover study to evaluate the safety and efficacy of SST-6007 in women with FSAD. A sufficient number of participants will be enrolled to yield 30 (approximately 15 pre-menopausal and 15 post-menopausal) participants to complete the SST-6007/Placebo Double-Blind, Dosing Phase of the study (Visit 2 and Visit 3).
Women in general and young girls in particular are constantly exposed to unhealthy body and appearance ideals through media that contribute to body dissatisfaction and unhealthy behaviors such as rigid dieting, which in interaction with genes and other factors increase the risk of developing eating disorders such as anorexia nervosa and bulimia nervosa. The investigators aim is to investigate the extent to which an interactive prevention program, delivered through Internet, called the Swedish Body Project (sBody Project) can decrease the emergence of eating disorders among young females. The sBody Project is based on a "Dissonance-Based Intervention: (DBI)" that has shown very promising results. The adaptations and changes in the format of delivery accomplished in this study might help to disseminate the program on a broad basis, and consequently affect the health of young females on a much larger scale the ever before.