NEW ORLEANS — Medications in development would preserve muscle mass and augment fat loss when used in combination with glucagon-like peptide 1 (GLP-1) receptor agonists taken for weight loss. As drugs such as semaglutide (Wegovy) and the dual agonist glucose-dependent insulinotropic polypeptide (GIP)/GLP-1 tirzepatide (Zepbound) are producing unprecedented degrees of weight loss in increasing numbers...