Synthesis of endogenous nitric oxide under low oxygen partial pressure

摘要

The present invention provides methods of promoting synthesis of nitric oxide or endothelium-derived relaxing factor (EDRF) in hypoxic mammalian tissues by administering at least one N-hydroxyguanidine compound that is a substrate of nitric oxide synthase, and, optionally, one or more vasoactive agents and/or thromboxane A2 receptor antagonists. The present invention also provides methods of promoting vasorelaxation and treating sexual dysfunctions in patients by administering at least one N-hydroxyguanidine compound that is a substrate for nitric oxide synthase, and, optionally, at least one vasoactive agent and/or thromboxane A2 receptor antagonist. The present invention also provides methods for treating clinical conditions resulting from hypoxic conditions such as pulmonary disease, cardiovascular disorders, circulatory hypoxia, specific organ hypoxia, localized hypoxia, edema, central nervous system disorders, memory loss, or arterial disease. The present invention also provides methods for treating clinical conditions resulting from an abnormally high level of arginase activity, such as, heart disease, systemic hypertension, pulmonary hypertension, sexual dysfunction, autoimmune disease, chronic renal failure and cerebral vasospasm. The present invention also provides methods for treating clinical conditions associated with a deficient nitric oxide pathway by administering at least one N-hydroxyguanidine compound and, optionally, one or more vasoactive agents and/or thromboxane A2 receptor antagonists. The present invention also provides pharmaceutical compositions comprising at least one N-hydroxyguanidine compound, and, optionally, one or more vasoactive agents and/or thromboxane A2 receptor antagonists.