Clinical Trial

Neuroimmune Response to Lipopolysaccharide

Study Description

Neuroimmune Response to Lipopolysaccharide

In this study, healthy adult volunteers will undergo two positron emission tomography (PET) scans using the radiotracer [11C]PBR28 which binds to the 18kDa translocator protein (TSPO). Approximately 3 hours prior to the second [11C]PBR28 PET scan, lipopolysaccharide (LPS; endotoxin) will be administered to evoke a robust neuroimmune response. Subjects will also undergo behavioral and cognitive testing. Vital signs, subjective response, and peripheral cytokine levels will be assayed periodically throughout the experimental session. Specific aims: Quantify the magnitude of neuroimmune response after a classical immune stimulus. Secondary aims: Quantify changes in cognitive function after a classical immune stimulus. Hypothesis: Individuals will exhibit a robust whole-brain neuroimmune response and impaired cognitive function after LPS.


Locations Selected Location


No pharmaceutical medication involved No pharmaceutical medication involved
Patients and healthy individuals accepted Patients and healthy individuals accepted

Biological - Lipopolysaccharide

Endotoxin E Coli

Additional Information

Official Study Title

Imaging the Neuroimmune Response to Lipopolysaccharide

Clinical Trial ID


ParticipAid ID