Molecular Analysis of Lipid Metabolizing Tissues
Tissue and blood samples wil be collected from patients undergoing wieght loss treatment or other surgery. Samples will be collected during scheduled clinical or surgical visits.
All patients will be those of the principal investigator, Dr. Livingston, or his colleagues in the divisions of GI/Endocrine or Trauma Surgery at UT Southwestern.
Male and female patients >= 18 yrs old undergoing surgeries for a recognized medical condition (including gastric bypass or other surgery for obesity treatment , surgery for cholecystitis, appendicitis, hernia repair or trauma). Male and female patients >= 18 yrs old undergoing medically supervised weight loss before or in lieu of surgery for obesity treatment.
All ethnic and racial categories that present for surgery or non surgical weight loss treatment will be included. Patients must be able to speak and read English or Spanish (translation services will not be available for other languages). Patients must be able to give a written informed consent prior to undergoing their procedure. Patients must also be available for follow-up visits.