Abstract: A method for inhibiting device thrombosis for a patient may include circulating blood through an extracorporeal circuit coupled to the patient, infusing nitrite into the flow of blood such that the nitrite is bioactivated by red blood cells to form nitric oxide, and illuminating the flow of blood with far-red light to increase bioactivation of the nitrite by the red blood cells. A system for inhibiting device thrombosis for a patient may include an extracorporeal circuit configured to circulate a flow of blood, a nitrite infusion device coupled to the extracorporeal circuit and configured to infuse nitrite into the flow of blood, and one or more light sources disposed along the extracorporeal circuit and configured to illuminate the flow of blood with far-red light.

Abstract: It has been surprisingly discovered that administration of nitrite to subjects causes a reduction in blood pressure and an increase in blood flow to tissues. The effect is particularly beneficial, for example, to tissues in regions of low oxygen tension. This discovery provides useful treatments to regulate a subject's blood pressure and blood flow, for example, by the administration of nitrite salts. Provided herein are methods of administering a pharmaceutically-acceptable nitrite salt to a subject, for treating, preventing or ameliorating a condition selected from: (a) ischemia-reperfusion injury (e.g., hepatic or cardiac or brain ischemia-reperfusion injury); (b) pulmonary hypertension (e.g., neonatal pulmonary hypertension); or (c) cerebral artery vasospasm.

Abstract: It has been surprisingly discovered that administration of nitrite to subjects causes a reduction in blood pressure and an increase in blood flow to tissues. The effect is particularly beneficial, for example, to tissues in regions of low oxygen tension. This discovery provides useful treatments to regulate a subject's blood pressure and blood flow, for example, by the administration of nitrite salts. Provided herein are methods of administering a pharmaceutically-acceptable nitrite salt to a subject, for treating, preventing or ameliorating a condition selected from: (a) ischemia-reperfusion injury (e.g., hepatic or cardiac or brain ischemia-reperfusion injury); (b) pulmonary hypertension (e.g., neonatal pulmonary hypertension); or (c) cerebral artery vasospasm.

Abstract: It has been surprisingly discovered that administration of nitrite to subjects causes a reduction in blood pressure and an increase in blood flow to tissues. The effect is particularly beneficial, for example, to tissues in regions of low oxygen tension. This discovery provides useful treatments to regulate a subject's blood pressure and blood flow, for example, by the administration of nitrite salts. Provided herein are methods of administering a pharmaceutically-acceptable nitrite salt to a subject, for treating, preventing or ameliorating a condition selected from: (a) ischemia-reperfusion injury (e.g., hepatic or cardiac or brain ischemia-reperfusion injury); (b) pulmonary hypertension (e.g., neonatal pulmonary hypertension); or (c) cerebral artery vasospasm.

Abstract: This disclosure relates to methods of using nitrite to detoxify stroma-free hemoglobin based blood substitutes. In particular, methods are described for using a blood substitute comprised of about equimolar amounts of nitrite and hemoglobin (e.g., nitrite-metHb) to treat, prevent, or ameliorate diseases of the blood in a subject, or as a blood replacement in a subject.

Abstract: It has been surprisingly discovered that administration of nitrite to subjects causes a reduction in blood pressure and an increase in blood flow to tissues. The effect is particularly beneficial, for example, to tissues in regions of low oxygen tension. This discovery provides useful treatments to regulate a subject's blood pressure and blood flow, for example, by the administration of nitrite salts. Provided herein are methods of administering a pharmaceutically-acceptable nitrite salt to a subject, for treating, preventing or ameliorating a condition selected from: (a) ischemia-reperfusion injury (e.g., hepatic or cardiac or brain ischemia-reperfusion injury); (b) pulmonary hypertension (e.g., neonatal pulmonary hypertension); or (c) cerebral artery vasospasm.

Abstract: Described herein is the finding that a mutant form of human neuroglobin (H64L) with a stable five-coordinate geometry reduces nitrite to nitric oxide approximately 2000-times faster than the wild type neuroglobin. Five-coordinate neuroglobin is also capable of binding and releasing oxygen. Based on these findings, the use of five-coordinate neuroglobin as a blood substitute is described herein. Particularly provided is a method of replacing blood and/or increasing oxygen delivery to tissues in a subject by administering to the subject a therapeutically effective amount of neuroglobin with a stable five-coordinate geometry. In some cases, five-coordinate neuroglobin is administered in combination with another therapeutic agent or composition, such as a second blood replacement product (for example, a hemoglobin-based oxygen carrier), a blood product (such as red blood cells, serum or plasma) or whole blood.

Abstract: Described herein is the finding that a mutant form of human neuroglobin (H64L) with a stable five-coordinate geometry reduces nitrite to nitric oxide approximately 2000-times faster than the wild type neuroglobin. Five-coordinate neuroglobin is also capable of binding and releasing oxygen. Based on these findings, the use of five-coordinate neuroglobin as a blood substitute is described herein. Particularly provided is a method of replacing blood and/or increasing oxygen delivery to tissues in a subject by administering to the subject a therapeutically effective amount of neuroglobin with a stable five-coordinate geometry. In some cases, five-coordinate neuroglobin is administered in combination with another therapeutic agent or composition, such as a second blood replacement product (for example, a hemoglobin-based oxygen carrier), a blood product (such as red blood cells, serum or plasma) or whole blood.

Abstract: It has been surprisingly discovered that administration of nitrite to subjects causes a reduction in blood pressure and an increase in blood flow to tissues. The effect is particularly beneficial, for example, to tissues in regions of low oxygen tension. This discovery provides useful treatments to regulate a subject's blood pressure and blood flow, for example, by the administration of nitrite salts. Provided herein are methods of administering a pharmaceutically-acceptable nitrite salt to a subject, for treating, preventing or ameliorating a condition selected from: (a) ischemia-reperfusion injury (e.g., hepatic or cardiac or brain ischemia-reperfusion injury); (b) pulmonary hypertension (e.g., neonatal pulmonary hypertension); or (c) cerebral artery vasospasm.

Abstract: Provided herein are methods of treating hemolysis by administering an active compound in an amount sufficient to treat said hemolysis. It has been found that nitroxyl donors or similar compounds preferentially react with cell-free OxyHb, as compared to OxyHb encapsulated in a red blood cell, and reacts with MetHb to form iron-nitrosyl Hb or nitrite bound MetHb. It has also been found that such compounds reduce cell-free Hb and hemolysis. Active compounds are also contemplated for use in combination therapies, for example, in combination with the administration of red blood cells and/or an agent that promotes hematopoiesis, or in combination with the administration of a nitric oxide donor.

Abstract: It has been surprisingly discovered that administration of nitrite to subjects causes a reduction in blood pressure and an increase in blood flow to tissues. The effect is particularly beneficial, for example, to tissues in regions of low oxygen tension. This discovery provides useful treatments to regulate a subject's blood pressure and blood flow, for example, by the administration of nitrite salts. Provided herein are methods of administering a pharmaceutically-acceptable nitrite salt to a subject, for treating, preventing or ameliorating a condition selected from: (a) ischemia-reperfusion injury (e.g., hepatic or cardiac or brain ischemia-reperfusion injury); (b) pulmonary hypertension (e.g., neonatal pulmonary hypertension); or (c) cerebral artery vasospasm.

Abstract: This disclosure relates to methods of using nitrite to detoxify stroma-free hemoglobin based blood substitutes. In particular, methods are described for using a blood substitute comprised of about equimolar amounts of nitrite and hemoglobin (e.g., nitrite-metHb) to treat, prevent, or ameliorate diseases of the blood in a subject, or as a blood replacement in a subject.

Abstract: This disclosure relates to methods of using nitrite to detoxify stroma-free hemoglobin based blood substitutes. In particular, methods are described for using a blood substitute comprised of about equimolar amounts of nitrite and hemoglobin (e.g., nitrite-metHb) to treat, prevent, or ameliorate diseases of the blood in a subject, or as a blood replacement in a subject.

Abstract: It has been surprisingly discovered that administration of nitrite to subjects causes a reduction in blood pressure and an increase in blood flow to tissues. The effect is particularly beneficial, for example, to tissues in regions of low oxygen tension. This discovery provides useful treatments to regulate a subject's blood pressure and blood flow, for example, by the administration of nitrite salts. Provided herein are methods of administering a pharmaceutically-acceptable nitrite salt to a subject, for treating, preventing or ameliorating a condition selected from: (a) ischemia-reperfusion injury (e.g., hepatic or cardiac or brain ischemia-reperfusion injury); (b) pulmonary hypertension (e.g., neonatal pulmonary hypertension); or (c) cerebral artery vasospasm.

Abstract: Described herein is the finding that a mutant form of human neuroglobin (H64L) with a stable five-coordinate geometry reduces nitrite to nitric oxide approximately 2000-times faster than the wild type neuroglobin. Five-coordinate neuroglobin is also capable of binding and releasing oxygen. Based on these findings, the use of five-coordinate neuroglobin as a blood substitute is described herein. Particularly provided is a method of replacing blood and/or increasing oxygen delivery to tissues in a subject by administering to the subject a therapeutically effective amount of neuroglobin with a stable five-coordinate geometry. In some cases, five-coordinate neuroglobin is administered in combination with another therapeutic agent or composition, such as a second blood replacement product (for example, a hemoglobin-based oxygen carrier), a blood product (such as red blood cells, serum or plasma) or whole blood.

Abstract: It has been surprisingly discovered that administration of nitrite to subjects causes a reduction in blood pressure and an increase in blood flow to tissues. The effect is particularly beneficial, for example, to tissues in regions of low oxygen tension. This discovery provides useful treatments to regulate a subject's blood pressure and blood flow, for example, by the administration of nitrite salts. Provided herein are methods of administering a pharmaceutically-acceptable nitrite salt to a subject, for treating, preventing or ameliorating a condition selected from: (a) ischemia-reperfusion injury (e.g., hepatic or cardiac or brain ischemia-reperfusion injury); (b) pulmonary hypertension (e.g., neonatal pulmonary hypertension); or (c) cerebral artery vasospasm.

Abstract: This disclosure relates to methods of using nitrite to detoxify stroma-free hemoglobin based blood substitutes. In particular, methods are described for using a blood substitute comprised of about equimolar amounts of nitrite and hemoglobin (e.g., nitrite-metHb) to treat, prevent, or ameliorate diseases of the blood in a subject, or as a blood replacement in a subject.

Abstract: Provided herein are methods of treating hemolysis by administering an active compound in an amount sufficient to treat said hemolysis. It has been found that nitroxyl donors or similar compounds preferentially react with cell-free OxyHb, as compared to OxyHb encapsulated in a red blood cell, and reacts with MetHb to form iron-nitrosyl Hb or nitrite bound MetHb. It has also been found that such compounds reduce cell-free Hb and hemolysis. Active compounds are also contemplated for use in combination therapies, for example, in combination with the administration of red blood cells and/or an agent that promotes hematopoiesis, or in combination with the administration of a nitric oxide donor.