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Nitric oxide synthases produce NO by catalysing a five-electron oxidation of a guanidino nitrogen of L-arginine (L-Arg). Oxidation of L-Arg to L-citrulline occurs via two successive monooxygenation reactions producing N ω-hydroxy-L-arginine (NOHLA) as an intermediate. 2 mol of O 2 and 1.5 mol of NADPH are consumed per mole of NO formed. [3]
Endothelial NOS (eNOS), also known as nitric oxide synthase 3 (NOS3) or constitutive NOS (cNOS), is an enzyme that in humans is encoded by the NOS3 gene located in the 7q35-7q36 region of chromosome 7. [5]
7-Nitroindazole, or 7-NI, is a heterocyclic small molecule containing an indazole ring that has been nitrated at the 7 position. Nitroindazole acts as a selective inhibitor for neuronal nitric oxide synthase, a hemoprotein enzyme that, in neuronal tissue, converts arginine to citrulline and nitric oxide (NO). [1]
Dihydrofolate reductase and thymidylate synthase inhibitor. Colorectal cancer: Myelosuppression Trimetrexate: IV Dihydrofolate reductase, thymidylate synthase and glycinamide ribonucleotide formyltransferase inhibitors. Pneumocystis jirovecii Neutropenia, febrile neutropenia (uncommon), renal failure (uncommon) peripheral neuropathy (uncommon) [15]
A nitrovasodilator is a pharmaceutical agent that causes vasodilation (widening of blood vessels) by donation of nitric oxide (NO), [1] and is mostly used for the treatment and prevention of angina pectoris. This group of drugs includes nitrates (esters of nitric acid), which are reduced to NO in the body, as well as some other substances.
This is a list of chemotherapeutic agents, also known as cytotoxic agents or cytostatic drugs, that are known to be of use in chemotherapy for cancer.This list is organized by type of agent, although the subsections are not necessarily definitive and are subject to revision.
Proadifen (SKF-525A) is a non-selective inhibitor of cytochrome P450 enzymes, preventing some types of drug metabolism. [1] It is also an inhibitor of neuronal nitric oxide synthase (NOS), CYP-dependent (cytochrome P450-dependent) arachidonate metabolism, transmembrane calcium influx, and platelet thromboxane synthesis.
Nicorandil is a vasodilator drug used to treat angina. Angina is chest pain that results from episodes of transient myocardial ischemia. This can be caused by diseases such as atherosclerosis, coronary artery disease and aortic stenosis. Angina commonly arises from vasospasm of the coronary arteries.