Positron Emission Tomography (PET) Imaging of Glial Activation in Psychotic Disease States
| Status: | Terminated |
|---|---|
| Conditions: | Schizophrenia, Psychiatric, Bipolar Disorder |
| Therapuetic Areas: | Psychiatry / Psychology |
| Healthy: | No |
| Age Range: | 18 - 65 |
| Updated: | 11/2/2018 |
| Start Date: | August 2010 |
| End Date: | April 2018 |
PET Imaging of Glial Activation in Psychotic Disease States
Many neurological diseases, including AIDS dementia, Alzheimer's disease and schizophrenia,
involve an inflammatory component thought to specifically involve glial cell activation. The
Investigators has been concerned with the development of tools for noninvasive imaging of
inflammatory processes in psychotic disease. Here, the investigators aim to use PET-based
neuroimaging with carbon-11
N,N-diethyl-2-(4-methoxyphenyl)-5,7-dimethylpyrazolo[1,5-a]pyrimidine-3-acetamide,
([11C]DPA)-713 to quantify regional distribution of translocator protein (TSPO), a putative
marker of inflammation, in the brains of patients with schizophrenia and bipolar disorder,
type I. The investigators will focus on patients in the early stages of disease (within first
five years of onset of schizophrenia diagnosis and within first five years of first manis,
respectively) to minimize the confounds of age-, chronic illness-, and medication- effects on
our results.
involve an inflammatory component thought to specifically involve glial cell activation. The
Investigators has been concerned with the development of tools for noninvasive imaging of
inflammatory processes in psychotic disease. Here, the investigators aim to use PET-based
neuroimaging with carbon-11
N,N-diethyl-2-(4-methoxyphenyl)-5,7-dimethylpyrazolo[1,5-a]pyrimidine-3-acetamide,
([11C]DPA)-713 to quantify regional distribution of translocator protein (TSPO), a putative
marker of inflammation, in the brains of patients with schizophrenia and bipolar disorder,
type I. The investigators will focus on patients in the early stages of disease (within first
five years of onset of schizophrenia diagnosis and within first five years of first manis,
respectively) to minimize the confounds of age-, chronic illness-, and medication- effects on
our results.
Inclusion Criteria:
- healthy volunteers 18-65 years of age
- Patients diagnosed with recent onset schizophrenia (within 5 years of onset), 18-65
years of age
- Patients diagnosed with recent onset bipolar disorder (within 5 years of onset of
first mania), 18-65 years of age
- screening laboratory tests will be obtained for subjects within a 10 day period prior
to the PET study and the results must be within normal limits for gender and age.
These tests will be repeated with a 7-day window following the PET study
- EKG conducted within 10 day period prior to the PET study. The EKG will be repeated
within 7 days following the study.
- Subject agrees to return to the Hospital for a follow-up EKG and laboratory testing of
blood and urine.
- For females of childbearing potential, negative serum pregnancy test within a 10 day
period prior to PET study.
Exclusion Criteria:
- history of recent nosocomial infection,
- history of chronic neurological disorder, such as multiple sclerosis or epilepsy, or
structural,central nervous system (CNS) abnormality such as stroke or arteriovenous
malformation,
- history of head injury with loss of consciousness > 1 hour,
- history of active substance abuse as defined by substance abuse including alcohol
abuse over the 6 months prior to the study,
- dependence on benzodiazepine medication
- contraindications to MRI scanning to include pacemakers, metallic implants/prosthesis
or prohibitive claustrophobia, etc.
- contraindications to PET scanning to include pregnancy, etc. For females of
childbearing potential, negative serum pregnancy test less than 10 days prior to PET
study
- ECG demonstrating the patient is not in a sinus rhythm or is having acute ischemia.
- any medical condition that in the opinion of the study investigators would constitute
a safety risk to the subject.
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