Imaging Dopamine Release in Depression
Major Depressive DisorderThis study aims to determine whether ventral striatal dopamine release is a mechanism of reward motivation in major depression, whether dopamine release is low in depression, and whether DA release and reward motivation predict response to dopamine-targeted treatment with pramipexole.
An Investigation of the Biological and Neuronal Mechanisms of Post Traumatic Stress Disorder, Depression...
Traumatic Brain InjuryPTSD1 moreBackground: A traumatic brain injury (TBI) could mean a person is at high risk for other long-lasting problems. These problems could include post-traumatic stress disorder (PTSD), depression, and post-concussive syndrome (PCS). For example, about 700,000 Americans each year who have a TBI later go on to have PTSD also. Depression and PCS are also common in people who had a TBI. Some people will have these problems later. These problems can seriously interfere with a person s life. Some people will not have these problems at all. There are many reasons for this difference. Researchers think the main reason is that people have different genetic and environmental influences. Right now, we only have few kinds of treatments to prevent or treat these problems after a TBI. The few treatments we have often do not work well. It is important to understand what factors make a person at high risk for these problems after a TBI. This could allow researchers and doctors to help address these problems early. Addressing these problems earlier may help a person have better health in the long run. Objectives: To study the biological changes that happen after mild to moderate TBI which could be linked to the onset of PTSD, depression, and post-concussive syndrome To study brain mechanisms that could explain risks for getting a psychiatric disorder after mild to moderate TBI. This will be done using a test called functional MRI (fMRI). This test takes images of the brain while a person is doing a simple task. Eligibility: Men and women who are 18 to 65 years old. Had a mild to moderate TBI (including concussion) in the last month. Design: 5 outpatient visits to the NIH Clinical Center over one year. The first visit is a screening visit to see if you can join the study. This visit must happen within 30 days of the TBI. The visit includes lab work (blood and urine), a history and physical exam done by a physician or nurse practitioner, and a psychiatric interview with a behavioral health nurse. Visits 2, 3, 4 and 5 happen at one, three, six and twelve months post-injury. At these visits participants may have some or all of the following tests: blood and saliva collection, urine collection, questionnaires and interviews to assess symptoms, a test to see your response to stress (called hydrocortisone challenge), and fMRI brain imaging. This study does not provide treatment. This study is not a substitute for seeing a primary care provider. This study should not replace any therapies you may be taking.
Prevalence and Risk Factors in Unipolar Depression Patients Without Remission After One Antidepressant...
Non-psychotic Unipolar Major DepressionA non interventional, descriptive, longitudinal cohort study is designed, trying to obtain local data about the prevalence of non remitted depressed patients after an antidepressant treatment, and to get information about sociodemographic and clinical characteristics of these patients as well as features of their treatments and compare them with those of the patients that achieve remission. Also the effect of patient´s expectation in the treatment outcome will be examined.
Emotional and Cognitive Control in Late-Onset Depression
DepressionThis study may help identify how abnormalities in brain systems that control the ability to ignore irrelevant information may contribute to the development of depression in older adults.
Symptom Tracking in Assisted Reproductive Technologies
Depression Relapse in Women Undergoing Fertility TreatmentThis study assesses risk factors for depressive relapse in women undergoing fertility treatment with histories of major depressive disorder (MDD) or bipolar disorder. The study is focused on the acute risk factors of depressive relapse. The investigators hypothesize that risk for depressive relapse will be greater among women who stop antidepressants compared to those who continue treatment with these agents.
Measuring Adherence to Medication for Depression and Attention-deficit Hyperactivity Disorder
Major Depressive DisorderAttention-deficit Hyperactivity Disorder (ADHD)Poor adherence is a common reason for treatment failure in many fields of medicine, and likely affects common psychiatric treatments as well. Members of the present study team have used Medication Event Monitoring System (MEMS®) caps effectively to objectively monitor adherence in skin disease, and have shown that they provide a much more accurate measure of adherence behavior than self-reports, pill counts, or serum drug concentrations. The present study will use MEMS® caps to measure adherence in 10 patients with depression and 10 patients with attention-deficit hyperactivity disorder (ADHD) from a student clinic population. The aims will be to show the usefulness of MEMS® caps in measuring adherence to psychiatric treatment, and gather data on typical adherence rates for depression and ADHD patients on typical treatment regimens. The data obtained will be used to inform future studies that use an intervention to improve adherence behavior and ultimately disease outcomes.
An Adaptive Treatment Strategy for Adolescent Depression
Adolescent DepressionThe purpose of the study is: to find out how long teenagers getting talk therapy (interpersonal psychotherapy) for depression should get therapy before the therapist decides whether or not the teenager is improving enough, and to compare two ways of providing treatment to teenagers who have not improved enough.
Depression Management at the Workplace
DepressionRandomized trials demonstrate that depression management products can improve clinical and organizational outcomes sufficiently for selected employers to realize a return on investment. Rather than usual care marketing which uses voltage-enhanced promises to sell voltage-diminished products, the investigators designed an evidence-based (EB) intervention to encourage employers to purchase a depression management product that offers the type, intensity and duration of care shown to provide clinical and organizational value. In an RCT designed to examine employer benefit purchasing behavior of depression products in 360 employer members of over 20 regional business coalitions, the research team proposes: (a) to compare the impact of evidence-based (EB) to usual care (UC) presentations on employer benefit purchasing behavior, and (b) to identify mediators and organizational moderators of intervention impact on employer benefit purchasing behavior. This study addresses what policy analysts argue is one of the most pivotal problems in the translation of evidence-based care to 'real world' settings: whether purchasers can be influenced to buy health care products on the basis of value rather than cost. In the likely event that EB > UC, the study will provide encouragement to use an evidence-based approach to market new health care products to private payers on the basis of the product's clinical and organizational value. UC may achieve comparable outcomes to EB if the limiting factors in benefit purchasing are organizational, purchasing group and vendor constraints that no intervention can meaningfully modify. Support for this scenario would encourage the targeted marketing of new products to coalition members with empirically identified organizational, purchasing group and vendor characteristics, using usual care strategies.
A Study of the Neurobiology of Depression
Major Depressive DisorderHealthy ParticipantsPrevious research studies have shown that depression is associated with changes in structure and activity in different parts of the brain and that antidepressant medication can affect brain activity in different parts of the brain in individuals suffering from depression. The primary purpose of the study is to find out more about how the antidepressant medication duloxetine affects brain activity and structure in individuals with depression.
Cognitive Behavioral Therapy, Self-Efficacy, and Depression in Persons With Chronic Pain
DepressionThe investigators are exploring the role of Cognitive Behavioral Therapy (CBT), a treatment for depression, on self-efficacy (feeling empowered to accomplish a given task) and depression in persons with chronic pain and depression. Past research has shown that persons with chronic pain show improvement in self-efficacy and depression scores when they are using CBT. The Pain rehabilitation Center (PRC) at Mayo Clinic is adding CBT focused groups to better understand the role of CBT on self-efficacy and depression in persons with chronic pain and depression.