Down syndrome (DS) occurs in roughly 1 out of 700 births in the U.S. Half of all children with Down syndrome have congenital heart disease (CHD), often requiring corrective heart surgery. Even though CHD in children without DS is known to be associated with developmental problems, few studies have explored how CHD can affect the development and behavior of…
Children with Attention-Deficit/Hyperactivity Disorder (ADHD) are typically treated with two types of medications: stimulants and non-stimulants. These medications work in different ways to treat ADHD symptoms, but we do not fully understand the brain mechanisms underlying the medications' effects. This study will use MRI scanning to look at changes in…
This is a study designed for patients with medullary thyroid cancer. Treatment will consist of a drug called Ponatinib. Ponatinib is an investigational agent that blocks abnormal cancer proteins and therefore harms cancer cells. It was recently approved by the Food and Drug Administration for leukemia treatment, but is not approved for medullary thyroid…
In this study, we are trying to learn more about how stimulant medication produces an improvement in emotional lability (frequent mood changes and excessive emotional reactions) in patients with Attention Deficit Hyperactivity Disorder (ADHD.) Although ADHD is primarily associated with inattention, hyperactivity, and impulsivity, emotional ability plays a…