My primary research interest is focused on the study of the natural history of mitochondrial disorders supported by NAMDC (North American Mitochondrial Disease Consortia), an NIH-funded registry that focuses on the longitudinal study of patients with mitochondrial disease. Furthermore, I am also involved in clinical trials in children and adults with mitochondrial disorders. One of my current areas of research includes the study of nitric oxide deficiency as the basis for stroke-like episodes in adults and children with a mitochondrial syndrome called MELAS. As a PI on several grants that have been funded by national organizations in the United States, I have laid groundwork for the study of nitric oxide deficiency in MELAS syndrome and its restoration with the use of arginine and citrulline supplementation. A current NIH grant funds a phase 1 study that aims to determine the maximum tolerated dose and safety profile of citrulline supplementation in adults with MELAS syndrome. Moreover, I am involved in an international clinical trial for pediatric patients evaluating the efficacy of vatiquinone in mitochondrial refractory epilepsy.