Master regulator analysis to prioritize treatment of residual disease following neoadjuvant chemotherapy for breast cancer in patient-derived tumor xenografts

Determine whether master regulator-directed therapy will demonstrate a greater reduction of tumor growth in patient-derived xenografts from tumors resistant to neoadjuvant taxane therapy [i.e. paclitaxel or docetaxel +/- adriamycin/cytoxan] as compared to taxane (i.e. control).

HeartMate® III IDE Study

The HeartMate III Left Ventricular Assist System (LVAS) is a prospective, multi-center, study comparing the HeartMate III LVAS to the HeartMate II® LVAS in advanced stage heart failure patients. The study will be conducted as a staged pivotal study that includes a pre-specified early assessment for safety. Researchers at up to 60 centers will evaluate the device for use as long-term support for patients who are not candidates for cardiac transplant (also known as Destination Therapy).

Investigation of Calcium/Calmodulin Dependent Protein Kinase II (CaMKII) activity in human liver tissue.

The goal of this research is to gain information whether a calcium sensing enzyme called "Calcium/Calmodulin Dependent Protein Kinase" is activated in obesity. This research will supplement additional information about the pathogenesis of insulin resistance associated with obesity.

Changes in Insulin Sensitivity, Appetite Hormones, Body Composition, and Energy Expenditure after Weight Loss induced by Bariatric Surgery

  • The purpose of these studies are to examine insulin sensitivity, appetite hormones, metabolic rate and body composition before and after weight loss induced by gastric bypass, gastric banding, or sleeve gastrectomy surgery.
  • Participation involves visits to Columbia Medical Center before and after surgery for blood tests and measurement of metabolism, body fat and muscle mass.