Abstract: The present invention features methods of treating patients with chronic heart failure by administering a neuregulin polypeptide within a dosage range which is both effective and safe.

Abstract: The present invention relates to neukinase, a downstream protein kinase in the neuregulin signaling pathway. In certain aspects, the present invention provides isolated neukinase-encoding nucleic acids, neukinase polypeptides, oligonucleotides that hybridize to neukinase nucleic acids, and expression vectors containing neukinase-encoding sequences. The present invention further provides isolated host cells, antibodies, transgenic non-human animals, compositions, and kits relating to neukinase. In other aspects, the present invention further provides methods of identifying predisposition to cardiac dysfunction, methods of detecting the presence of neukinase, neukinase nucleic acid, methods of screening for agents which affect neukinase activity, and methods of modulating neukinase activity.

Abstract: The present invention relates to compositions and methods for preventing, treating or delaying various cardiovascular diseases or disorders in mammals, particularly in humans. More particularly, the present invention provides for compositions and methods for preventing, treating or delaying various cardiovascular diseases or disorders using, inter alia, a neuregulin protein, or a functional fragment thereof, or a nucleic acid encoding a neuregulin protein, or a functional fragment thereof, or an agent that enhances production and/or function of said neuregulin.

Abstract: The present invention provides a pharmaceutical preparation for treating a cardiovascular disease. Particularly, the present invention provides a formula of a neuregulin pharmaceutical preparation. The formula consist of neuregulin polypeptide, a buffer, a stabilizer, an excipient, a salt, and another component, can ensure the long-term stability of the neuregulin polypeptide, and can be used for treating a heart failure patient or a patient in a risk of the heart failure.

Abstract: Neuregulin peptides useful, for example, in methods and compositions comprising preventing, treating or delaying various diseases or disorders are described.