Identifying Correlates of Brain Microglial Activation in Neuropsychiatric Syndromes: A Dimensional Approach
Neuropsychiatric Syndromes
About this trial
This is an interventional basic science trial for Neuropsychiatric Syndromes focused on measuring Microglial activation, Immune activation, PET neuroimaging
Eligibility Criteria
Inclusion Criteria:
- Must be between 18-45 years old
- Males or females
- Must be right handed
- Must be able to sit unaccompanied for long periods of time with little body movement
- Must be illicit drug free at time of scanning as appropriate (UDS negative),
- Must be either healthy (without medical, neurological, psychiatric illness) or have a diagnosis of a neuropsychiatric syndrome (mood disorder, chronic pain syndrome, dementias, traumatic brain injury, substance/alcohol use disorder).
- Healthy Control volunteers must be medication free (≥ 14 days)
- Illicit drug free at time of scanning (verified by negative urine drug screen)
Exclusion Criteria:
- Must not be a smoker.
- Females must not be pregnant or nursing.
- Must not suffer from claustrophobia
- Must not meet exclusion criteria for MRI scanning (i.e. non-fixed magnetisable objects)
- Must not be PBR-28 low affinity binder (or using the [11C]ER176 study radiotracer)
- Healthy control volunteers must not have on-going, chronic, or relapsing/remitting medical, psychiatric (absence of both DSM-IV Axis I and/or Axis II disorders), or neurological illness as determined by combination of history, medical record, and/or examination.
Sites / Locations
- BBSB at UTHealthRecruiting
Arms of the Study
Arm 1
Arm 2
Experimental
Experimental
PET with radiotracer [11C]PBR-28 or [11C]ER176
PET with radiotracer [11C]PBR-28 or [11C]ER176 and affective challenge
PET with radiotracer [11C]PBR-28 or [11C]ER176 will be performed. [11C]PBR-28 or [11C]ER176 will be injected into subjects' veins during PET scanning.
PET with radiotracer [11C]PBR-28 or [11C]ER176 will be performed. [11C]PBR-28 or [11C]ER176 will be injected into subjects' veins during PET scanning. Affective challenge (e.g. induction of mood, affective pain) will be presented to the patient during the PET scanning period.