The present invention deals with gene therapy for treating chronic heart failure and other cardiac disease states which are accompanied by a reduced number or functioning of myocardial beta-adrenergic receptors (.beta.-AR). .beta.-AR receptor function is augmented in transgenic animals by delivery and expression of a beta-2-adrenergic receptor gene or a gene encoding a beta adrenergic receptor kinase inhibitor, resulting in increased in vivo left ventricular function. The present invention includes recombinant plasmid vectors, alternative beta-adrenergic receptor gene delivery strategies, and transgenic mice carrying a .beta.-AR transgene, a .beta.-ARK transgene, or a .beta.-ARK inhibitor transgene.

 
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