Depression Clinical Trial
Official title:
Sleep and Healthy Aging Research on Depression for Younger Women
Verified date | May 2023 |
Source | University of California, Los Angeles |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
Compelling evidence indicates inflammation plays a role in depression, but potential mechanisms linking inflammation to depression, such as dysregulated reward processing, are poorly understood. This study comprehensively evaluates effects of inflammation on reward across dimensions (e.g., anticipating versus receiving a reward) and types (e.g., money vs. smiling faces) in younger and older women. Characterizing how inflammation shapes the dynamic and multidimensional reward system, and how this may differ by age, may give insight into risk factors for depression and help identify critical points for intervention.
Status | Active, not recruiting |
Enrollment | 40 |
Est. completion date | May 2, 2024 |
Est. primary completion date | July 22, 2022 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | Female |
Age group | 25 Years to 44 Years |
Eligibility | Inclusion Criteria: - Participants will be required to be in good general health (as evaluated during the phone and in-person baseline session) - Participants will be biologically female and premenopausal (as evaluated by self report). - Participants will 25-44 years of age. Exclusion Criteria: - Presence of chronic mental or physical illness - History of allergies, autoimmune, liver, or other severe chronic diseases, - Current and regular use of prescription medications such as steroids, non-steroid anti-inflammatory drugs, aspirin, immune modifying drugs, opioid analgesics, statins, antihypertensive drugs, anti-arrhythmic drugs, and antidepressant medications (none in the last 6 months). - Nightshift work or time zone shifts (> 3hrs) within the previous 6 weeks - Previous history of fainting during blood draws. - Presence of co-morbid medical conditions not limited to but including cardiovascular (e.g., history of acute coronary event, stroke) and neurological diseases (e.g., Parkinson's disease), as well as pain disorders; - Presence of comorbid inflammatory disorders such as rheumatoid arthritis or other autoimmune disorders; - Presence of an uncontrolled medical condition that is deemed by the investigators to interfere with the proposed study procedures, or to put the study participant at undue risk; - Presence of chronic infection, which may elevate proinflammatory cytokines; - Presence of an acute infectious illness in the two weeks prior to an experimental session. - Current Axis I psychiatric disorders as determined by the Research Version of the Structured Clinical Interview including a current major depressive disorder and substance dependence - Lifetime history of suicide attempt or inpatient psychiatric admission. - Current history of sleep apnea or nocturnal myoclonus; Phase-shift disorder, which will be identified by the Structured Clinical Interview and the Duke Structured Interview for Sleep Disorders - Current smoking or excessive caffeine use (>600 mg/day) because of the known effects on proinflammatory cytokine levels; - Evidence of recreational drug use from urine test. - Body mass index > 35 because of the effects of obesity on proinflammatory cytokine activity - Any clinically significant abnormality on screening laboratory tests - Clinically significant abnormalities in electrocardiogram |
Country | Name | City | State |
---|---|---|---|
United States | Norman Cousins Center for Psychoneuroimmunology, University of California, Los Angeles | Los Angeles | California |
Lead Sponsor | Collaborator |
---|---|
University of California, Los Angeles |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Other | Positive and negative emotion regulation capacity | Participants complete a 30 minute standardized emotion regulation task that includes two phases: a reactivity phase and a regulation phase, and assesses the ability to up-regulate positive emotional response to standardized images, and down-regulate negative emotional response to standardized images, both using instructed reappraisal strategies. The dependent variable is the degree to which self-reported emotion changes when reacting to versus reappraising emotion stimuli. Participants rate how negative they feel (1=not at all; 5 = extremely) and how positive they feel (1=not at all; 5 = extremely). | post-injection (approximately 3 hrs) | |
Primary | Non-social (monetary) reward response (reward motivation, learning, sensitivity) | Motivation for monetary reward is assessed with a 10-minute version of the Effort Expenditure for Rewards Task (EEfRT); change in the amount of hard trials chosen from baseline to post-injection is the outcome measure. Implicit reward learning and sensitivity to monetary reward is assessed with the probabilistic reward task (PRT); change in the magnitude of response bias from baseline to post-injection is the outcome measure. | Baseline and post-injection (approximately 2 hrs) | |
Primary | General social reward response (reward sensitivity and motivation) | Sensitivity to general social reward cues (i.e., response to positive emotional faces) assessed as positive attentional bias with an emotional dot probe task and positive emotion detection with a face morphing task. Outcomes are change from baseline to post-injection in attentional bias (via reaction time) and identification (via reaction time and accuracy) of positive faces. Motivation for general social reward is assessed via self-report; participants rate their desire to engage in 3 different activities, one of which is social, on a 1 (not at all) to 10 (extremely) Likert scale.; change in desire for the social activity from baseline to post-injection is the outcome variable. | Baseline and post-injection (approximately 2 hrs) | |
Secondary | Close social reward response | Participants spend 5 minutes talking about a "close other" to a research assistant trained in reflective listening and provide ratings of current negative and positive emotion on visual analogue scales (0=not at all; 100=extremely) using items from the Profile of Mood States. Outcome variables are change in self-report positive emotion from pre to post-discussion, and percentage of positive and negative emotional words used during the discussion (scored with Linguistic Inquiry and Word Count Software). | Post-injection (approximately 2 hrs) | |
Secondary | Anticipatory and Consummatory Daily Reward Response | Participants indicate the extent to which they enjoyed 10 activities (social, non-social, close social) on a 0-100 visual analogue scale (0= not at all; 100=extremely) at five random times during the day; change in enjoyment in each of the domains from pre to post-experimental session is the outcome for consummatory reward. From the same list of activities, participants then rate how much they are currently looking forward to each activity on the same analogue scale (0= not at all; 100=extremely); change from pre to post-experimental session is the outcome for anticipatory reward. | 14 days (7 days pre-injection; 7 days post-injection). | |
Secondary | Dopaminergic activity | Count of eye blinks (resting eye blink rate; EBR) over a five minute period; the outcome is change in EBR from pre to post-injection. | Baseline and post-injection (approximately 2 hrs) | |
Secondary | Depressed Mood Subscale of the Profile of Mood States (POMS) | The Depressed Mood Subscale of the POMS is a self-reported assessment of depressed mood in which subjects rate severity of depressed mood using a visual analog scale from 1 to 5 (5 being most severe). Each timepoint is scored and analyses examine the temporal profile of change with assessment every hour | 12 hours |
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