The current invention is in the field of molecular biology/pharmacology and provides methods of using compounds that modulate the effects of GPR30/GPER for treating obesity and diabetes (preferably agonists) as well as disease states and/or conditions that result from excessive formation of reactive oxygen species (preferably antagonists). These compounds may function as agonists and/or antagonists of the disclosed estrogen receptor and/or modulate the expression/upregulation of nox and nox-associated reactive oxygen species (ROS).
