Abstract: The presently disclosed subject matter provides methods for increasing perfusion in hypoxic regions of tissues in subjects. Also provided are methods for treating diseases and/or disorders associated with hypoxia in subjects, methods for increasing sensitivity of tumors to radiation and/or chemotherapy treatments, methods for delaying tumor growth in subjects, and methods for inhibiting tumor blood vessel growth in subjects. In some embodiments, the presently disclosed methods involve administering to subjects in need thereof a first composition selected from the group consisting of a nitrosylated hemoglobin and an agent that induces nitrosylation of endogenous hemoglobin in the subject and a second composition comprising a hyperoxic gas. In some embodiments, the presently disclosed methods also include treating a tumor with radiation therapy, chemotherapy, photodynamic therapy, immunotherapy, or combinations thereof. Also provided are inhalable gases that can be employed in the presently disclosed methods.

Abstract: This present invention relates to methods, compositions, and kits useful for treating a patient having or at risk for developing a disorder associated with decreased expression of ?2 adrenergic receptors or need for increased 132 adrenergic receptor activity.

Abstract: Contrary to current opinion that nitrite in general oxidizes hemoglobin with elimination of active nitric oxide, deoxygenated hemoglobin reacts with low concentration inorganic nitrite to produce very stable iron nitrosyl hemoglobin which on delivery into the body is converted to a hemoglobin capable of nitric oxide delivery and provides vasodilator and antiplatelet activity. This provides basis for ameliorated risk blood product transfusions.

Abstract: Genomic actions and/or proteomic interactions for pathophysiological processes and for physiological processes are determined at associated redox state conditions. Protein interactions are correlated with oxygen tensions. Identification of markers for disease including epitopes is effected in the presence of simulated redox state perturbations. Screening for previously unknown receptors and activating ligands is carried out in the presence of alteration of redox state.

Abstract: The present invention provides compositions comprising a gas and a gastrointestinal smooth muscle relaxing agent comprising ethyl nitrite in a therapeutically effective amount. The present invention also provides methods of relaxing gastrointestinal smooth muscle, alleviating contraction or spasm of gastrointestinal smooth muscle to facilitate a diagnostic medical procedure and treating or preventing a gastrointestinal disorder using the compositions of the invention.

Abstract: A reactive oxygen generating enzyme inhibitor with NO donor bioactivity, e.g., nitrated allopurinol, is useful to treat heart failure, stable angina, ischemic disorder, ischemic reperfusion injury, atherosclerosis, sickle cell disease, diabetes, Alzheimer's disease, Parkinson's disease, ALS and asthma and to obtain proper contraction of heart, skeletal and smooth muscle.

Abstract: Patients having a disease associated with high level of thioredoxin system activity or a requirement for nitric oxide, e.g. large cell lymphoma or restenosis, are treated with a thioredoxin reductase inhibitor, e.g. auranofin or arsenic trioxide, and a nitric oxide donating compound, e.g. isosorbide mononitrite or isosorbide dinitrite or nitroglycerin or S-nittrosothiol. Patients having a disease associated with nitric oxide synthase overexpression or increased activity, e.g. Parkinson's disease or septic shock or pancreatic cancer, are treated with Trx/Trx reductase upregulator, e.g. aptamer that binds to thioredoxin reductase inhibitor, and agent causing depletion of nitric oxide (or adduct thereof), e.g. L-NMMA or L-NAME or minocycline or ascorbate or N-acetylcysteine.

Abstract: Amount of combined nitric oxide or nitric oxide present as iron nitrosyls in a blood sample is determined by directing a low power electromagnetic radiation beam at a blood sample to liberate nitric oxide gas, dissolving the liberated nitric oxide gas and electrochemically detecting amount of dissolved nitric oxide gas.

Abstract: A method for attenuating vasoconstriction in a patient with subarachnoid hemorrhage by administering to the patient a therapeutically effective amount of a compound which mediates an increase of bioactive nitric oxide in blood or tissue in the subarachnoid space to cause vasodilation in cerebral, carotid and basilar arteries after the administration of the compound, and wherein the administration of the compound does not reduce mean arterial blood pressure by more than 10%.

Abstract: The presently disclosed subject matter provides methods for increasing perfusion in hypoxic regions of tissues in subjects. Also provided are methods for treating diseases and/or disorders associated with hypoxia in subjects, methods for increasing sensitivity of tumors to radiation and/or chemotherapy treatments, methods for delaying tumor growth in subjects, and methods for inhibiting tumor blood vessel growth in subjects. In some embodiments, the presently disclosed methods involve administering to subjects in need thereof a first composition selected from the group consisting of a nitrosylated hemoglobin and an agent that induces nitrosylation of endogenous hemoglobin in the subject and a second composition comprising a hyperoxic gas. In some embodiments, the presently disclosed methods also include treating a tumor with radiation therapy, chemotherapy, photodynamic therapy, immunotherapy, or combinations thereof. Also provided are inhalable gases that can be employed in the presently disclosed methods.

Abstract: Treatment of myocardial infarction to reduce infarct size and organogenesis is provided by administration of agents selected from the group consisting of

Abstract: Disclosed herein are methods and compositions for modulating the levels and/or activity of S-nitrosoglutathione reductase (GSNOR) in vivo or in vitro. Specifically disclosed are GSNOR deletion constructs, host cells and non-human mammals comprising GSNOR deletions, and methods of screening employing GSNOR deletion mutants. Also specifically disclosed are reagents and procedures for measuring, monitoring, or altering GSNOR levels or activity (as well as nitric oxide and S-nitrosothiol levels) in connection with various medical conditions.

Abstract: The presently disclosed subject matter provides methods for increasing perfusion in hypoxic regions of tissues in subjects. Also provided are methods for treating diseases and/or disorders associated with hypoxia in subjects, methods for increasing sensitivity of tumors to radiation and/or chemotherapy treatments, methods for delaying tumor growth in subjects, and methods for inhibiting tumor blood vessel growth in subjects. In some embodiments, the presently disclosed methods involve administering to subjects in need thereof a first composition selected from the group consisting of a nitrosylated hemoglobin and an agent that induces nitrosylation of endogenous hemoglobin in the subject and a second composition comprising a hyperoxic gas. In some embodiments, the presently disclosed methods also include treating a tumor with radiation therapy, chemotherapy, photodynamic therapy, immunotherapy, or combinations thereof. Also provided are inhalable gases that can be employed in the presently disclosed methods.

Abstract: The presently disclosed subject matter provides methods for increasing perfusion in hypoxic regions of tissues in subjects. Also provided are methods for treating diseases and/or disorders associated with hypoxia in subjects, methods for increasing sensitivity of tumors to radiation and/or chemotherapy treatments, methods for delaying tumor growth in subjects, and methods for inhibiting tumor blood vessel growth in subjects. In some embodiments, the presently disclosed methods involve administering to subjects in need thereof a first composition selected from the group consisting of a nitrosylated hemoglobin and an agent that induces nitrosylation of endogenous hemoglobin in the subject and a second composition comprising a hyperoxic gas. In some embodiments, the presently disclosed methods also include treating a tumor with radiation therapy, chemotherapy, photodynamic therapy, immunotherapy, or combinations thereof. Also provided are inhalable gases that can be employed in the presently disclosed methods.

Abstract: A C-nitroso moiety derived from a carbon acid with a pKa less than about 25 is bound in a biocompatible polymer as an ester or ether to a pendant hydroxyl group, as an ester to a pendant carboxylic acid or as an amine or amide to a pendant amine moiety. The polymer with c-nitroso moiety bound thereto can be coated on a medical device and/or used for prophylaxis of a patient at risk for restenosis. A c-nitroso moiety bound as amide to polyisobutylene amine substituted styrene copolymer is described in detail.

Abstract: A patient in need of nitroglycerin therapy is treated with nitroglycerin and agent that prevents inhibition of or reverses inhibition of mtALDH and/or the generation of reactive oxygen species from mitochondria, e.g., a mitochondrial antioxidant which is not a reducing agent or a dithiol, e.g., ebselen or uric acid. Nitroglycerin dosage can be regulated and inhibiting agent dosage can be regulated and tolerance postponed by monitoring blood level of active mtALDH and dosing in response to determined level of active mtALDH.

Abstract: Disclosed are novel NO-releasing compounds which comprise a stabilized S-nitrosyl group and a free alcohol or a free thiol group. Also disclosed is a method of preparing the NO-releasing compounds. The method comprises reacting a polythiol or a thioalcohol with a nitrosylating agent. Also disclosed are medical devices coated with the disclosed compounds, methods of delivering NO to treatments sites in a subject by utilizing the medical devices and methods of sterilizing surfaces.

Abstract: The combination of nitric oxide generating compounds which are not dependent upon aldehyde dehydrogenase for bioactivation, or are specifically targeted to nNOS or the sarcoplasmic reticulum of cardiac muscle cells, and xanthine oxidase inhibitors are effective in the treatment of heart disease, specifically congestive heart failure and ischemic coronary disease. This treatment is particularly effective in patients who have particularly heavy oxidative burdens, e.g. diabetics, patients with lung disorders, patients with sickle cell anemia and patients of Asian descent.

Abstract: A blood-flow decrease preventing agent is used to negate or reduce the decreased oxygen delivery in abdominal organs caused by insufflating gas. Preferably a gas is delivered into the abdominal cavity consisting essentially of the insufflating gas and the blood-flow decrease preventing agent. Very preferably, a gas is used consisting essentially of carbon dioxide as the insufflating gas and ethyl nitrite as the blood-flow to abdominal organ decrease preventing agent.

Abstract: Therapies are for treating patients in need of nitroglycerin therapy and allow increased dosage, postponement of tolerance and preconditioning, without exacerbating or causing hypotension. Methods for determining cross-tolerance, nitroglycerin effectiveness and dose are also disclosed. Composition for intravenous administration of nitroglycerin does not contain ethanol or contains less ethanol than conventional compositions.