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Sample Collection From Healthy Volunteers for Assay Optimization
Background: The Laboratory of Immune System Biology (LISB) works with other labs at the National Institutes of Health. They study how parts of living things c…
Early Metabolic Effects of Antiretroviral Drugs in Healthy Volunteers: A Phase 2 Randomized Study
Background: People with HIV take drugs to keep the amount of virus in their body low. One type of these drugs, called integrase strand transfer inhibitors (IN…
Role of Theta Frequency Oscillations in Proactive and Reactive Control Processes in Youth With Attention Deficit Hyperactivity Disorder (ADHD) and Obsessive Compulsive Disorder (OCD)
Background: Attention deficit hyperactivity disorder (ADHD) is common in children. It can cause problems with attention and the ability to control actions and…
The Effects of Urolithin A Supplementation on Glucose Metabolism in Healthy Adults >= 55 Years Old. A Randomized Triple-Masked Controlled Clinical Trial
Background: As people age, the cells in the pancreas that produce insulin begin to release less of this hormone, and levels of blood glucose (sugar) rise. Thi…
Assessing the Impact of Perceptions of Unpredictability on Objective Measures of Food Consumption and Metabolism: A Natural History Study
Background: Many people in the United States are overweight or obese. This natural history study will look into how life events during childhood can impact ea…
Children's Growth and Behavior Study
Background: \- Studies show that many factors affect children's eating behavior and health. These include sleep, mood, thinking skills, and genetics. Studying…
Regional Cerebral Blood Flow Studies of Object Perception, Identification, Localization, and Memory
The purpose of this study is to use brain imaging technology to measure changes in blood flow to areas in the brain as individuals perform intellectual tasks. …
Prospective Cross-Over Study of the Effects of Meal Macronutrients on Postprandial Lipids
Background: Abnormal fats in the blood can lead to many problems, including heart disease. Researchers want to learn more about how eating meals with differen…
Phase I Clinical Trial to Study the Safety and After-effects of Transcranial Magnetic Stimulation (TMS) Using A High-density Theta Burst Stimulation (hdTBS) Paradigm
Background: Transcranial magnetic stimulation (TMS) uses magnetic pulses to affect brain activity. A type of TMS called theta burst stimulation (TBS) is appro…
The Genetic and Epigenetic Signatures of Translational Aging Laboratory Testing (GESTALT)
Background: \- Biomarkers are substances in people s blood and tissues. They help researchers understand diseases and signs of aging. Scientists want to do mo…
Discovering Determinants of Food Intake by Application of Machine Learning to Complex, High-Dimensional Data
Background: Many people in the United States are overweight or obese. Researchers want to learn why some people can overeat and not gain weight, whereas other…
Investigating the Analgesic Potential of (2R,6R)-HNK in Acute Pain in Healthy Volunteers
Background: Opioid drugs are often prescribed for acute and chronic pain. But these drugs are addictive, and they lead to more than 14,000 overdose deaths in …