Dr. Pinney investigates the molecular mechanisms that link an adverse intrauterine milieu to the development of diabetes and obesity later in life. Specifically, she is researching how intrauterine growth restriction, gestational diabetes and in utero exposure to environmental toxicants contribute to the development of diabetes and obesity in offspring.
Dr. Roizen's research program aims to understand non-calciometabolic effects of vitamin D and to use this understanding to design new therapeutic approaches to common diseases such as sarcopenia and obesity.
Dr. Shah's research is centered on understanding obesity and its related complications. Her current work includes clinical and translational studies exploring pathophysiology and modulation of obesity-related adipose tissue and systemic inflammation using human cell lines and clinical trials. She is also involved in clinical studies of outcomes and risk factors of polycystic ovarian syndrome and type 2 diabetes in teens.
Dr. Xanthopoulos's research focuses on the development, implementation, and adherence to medical and lifestyle interventions, including non-invasive ventilation (CPAP/BPAP), eating habits, physical activity, and sleep. She has a particular interest in the interactions among behavioral, lifestyle, psychosocial and physiologic factors as they relate to health and neurobehavioral functioning and quality of life in youth and families.
Dr. McCormack investigates the intersection of neuroendocrinology and metabolism. Her translational research program involves two areas. The first involves studying those with genetic disorders, including primary mitochondrial diseases and Friedreich's ataxia, with characterized risk for diabetes mellitus. Second, Dr. McCormack focuses on brain disorders associated with excess weight gain, including brain tumor-related hypothalamic obesity syndrome and idiopathic intracranial hypertension.
Dr. Katz’s investigates the sequelae of obesity and type 2 diabetes mellitus in youth. Her research involves the intersection of sleep, obesity, and glucose intolerance and prevention of cardiovascular risk. Her studies have led to the evaluation of quantitative tools important for assessment of metabolic risk in youth.
The principal goal of Dr. Simmons' research program is to elucidate the underlying molecular mechanisms that link an aberrant intrauterine milieu to the later development of diseases in adulthood. She has made many seminal contributions to the understanding of the role that epigenetic modifications play in developmental programming of obesity and type 2 diabetes.
Dr. Stallings is working on intervention trials involving three chronic diseases with nutrition-related abnormalities resulting in meaningful adverse outcomes: cystic fibrosis (new drugs), sickle cell disease (vitamin A) and chronic pancreatitis (enzyme replacement drug).
Mary Ellen Vajravelu, MD, MSHP, is a pediatric endocrinologist in the Division of Endocrinology and Diabetes at Children’s Hospital of Philadelphia. She treats all pediatric endocrine conditions, but she has special expertise in prediabetes and type 2 diabetes in children and adolescents.