Hyperpolarized Xenon-129 Magnetic Resonance Imaging and Spectroscopy of Brown Fat: Healthy Adult Volunteer Pilot Study
Last updated on July 2021Recruitment
- Recruitment Status
- Recruiting
- Estimated Enrollment
- Same as current
Summary
- Conditions
- Obesity
- Type
- Interventional
- Phase
- Phase 1
- Design
- Allocation: N/AIntervention Model: Single Group AssignmentMasking: None (Open Label)Primary Purpose: Basic Science
Participation Requirements
- Age
- Between 18 years and 60 years
- Gender
- Both males and females
Description
In the fight against obesity, brown adipose tissue (BAT) is considered to be the newest target. The hypothesis is that this tissue is partially responsible for the imbalance between energy intake and energy expenditure that keeps lean people lean and obese people obese. As the detection of this tiss...
In the fight against obesity, brown adipose tissue (BAT) is considered to be the newest target. The hypothesis is that this tissue is partially responsible for the imbalance between energy intake and energy expenditure that keeps lean people lean and obese people obese. As the detection of this tissue in adult humans is difficult, this study aim to evaluate the use of hyperpolarized xenon gas MRI for the detection of this tissue. Hyperpolarized xenon gas MRI is currently used for lung ventilation studies. For this study subjects will undergo an MRI scan for which they will also inhaled hyperpolarized xenon. Scans will be done before and during stimulation of thermogenic activity by cold exposure, while MR images and spectra will be acquired from the supraclavicular area. We expect that the inhaled gas will diffuse into blood and eventually reach BAT in a manner proportional to the metabolic activity of this tissue. Objectives of this studies are: To detect BAT volume using hyperpolarized xenon MRI To detect BAT thermogenic activity by hyperpolarized xenon Nuclear Magnetic Resonance (NMR) spectroscopy
Tracking Information
- NCT #
- NCT02220426
- Collaborators
- North Carolina Translational and Clinical Sciences Institute
- Investigators
- Principal Investigator: Rosa Tamara Branca, PhD University of North Carolina, Chapel Hill