Methods and compositions for enhancing fertility and/or inhibiting pregnancy failure, restoring glucose tolerance and/or preventing glucose intolerance and/or maintaining glucose homeostasis and/or inducing or enhancing weight loss, treating dyslipidemia, treating hypertestosteronism or hyperandrogenism, and/or treating type 2 diabetes in an individual in need thereof are provided. These involve compositions that inhibit expression of interferon-gamma (IFN-γ) or a downstream IFN-γ-stimulated gene, which is preferably a macrolide immunosuppressant compound.
