Methods and compositions for reducing ischemic injury of the heart by administering adenosine receptor agonists and antagonists
First Claim
1. A method for preventing or reducing ischemic damage to the heart, in a patient in need thereof, comprising administering to said patient a partial agonist having affinity for the A1 adenosine receptors in an amount effective to activate the A1 receptors in the heart of said patient.
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Abstract
Compositions and methods for reducing or preventing ischemic damage of the heart are disclosed. A preferred embodiment of the invention comprises the simultaneous administration of specific A3/A1 receptor agonists, to patients suffering from ischemic damage or at risk for the same. In yet another embodiment of the invention, a binary conjugate which acts as an agonist for the A3 receptor and an antagonist at the A2a receptor, is administered to reduce or prevent ischemic damage to the heart.
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Citations
73 Claims
- 1. A method for preventing or reducing ischemic damage to the heart, in a patient in need thereof, comprising administering to said patient a partial agonist having affinity for the A1 adenosine receptors in an amount effective to activate the A1 receptors in the heart of said patient.
- 9. A method for preventing or reducing ischemic damage to the heart, in a patient in need thereof, comprising administering to said patient a partial agonist having affinity for the A3 adenosine receptors in an amount effective to activate the A3 receptors in the heart of said patient.
- 17. A method for preventing or reducing apoptotic cell death mediated damage to the heart, in a patient in need thereof, comprising administering to said patient an agonist having affinity for both the A1 and A3 adenosine receptors in an amount effective to activate A3 and A1 receptors in the heart of said patient thereby reducing apoptosis.
- 29. A method for preventing or reducing apoptotic cell death mediated damage to the heart, in a patient in need thereof, comprising administering to said patient a mixed agonist having affinity for the A3 and A1 adenosine receptors and an antagonist having affinity for the A2a adenosine receptor in amounts effective to activate said A3 and A1 receptors and inhibit activation of said A2a receptor in the heart of said patient.
- 43. A method for preventing or reducing apoptotic cell death mediated damage to the heart, in a patient in need thereof, comprising administering to said patient a binary conjugate, which acts as an adenosine A3 receptor agonist while simultaneously inhibiting the activation of A2a receptors in an amount effective to enhance myocardial response to said preconditioning stimuli.
- 49. A method for preventing or reducing apoptotic cell death mediated damage to the heart, in a patient in need thereof, comprising administering to said patient both an adenosine A3 receptor agonist and at least one adenosine A1 receptor agonist in an amount effective to activate the A1 and A3 adenosine receptors in the heart of said patient.
- 58. A method for preventing or reducing apoptotic cell death mediated damage to the heart, in a patient in need thereof, comprising administering to said patient a binary conjugate acting as an agonist at the A3 adenosine receptor and an antagonist at the A2a adenosine receptor.
- 66. A method for preventing or reducing apoptotic cell death mediated damage to the heart, in a patient in need thereof, comprising administering to said patient a binary conjugate acting as an agonist at the A3 adenosine receptor and an agonist at the A1 adenosine receptor.
Specification