What are Arylamine drugs?

Arylamine N-acetyltransferases (NATs) are polymorphic drug-metabolizing enzymes, acetylating arylamine carcinogens and drugs including hydralazine and sulphonamides. The slow NAT phenotype increases susceptibility to hydralazine and isoniazid toxicity and to occupational bladder cancer.

What does n acetyl transferase do?

N-acetyltransferase (NAT) is an enzyme that catalyzes the transfer of acetyl groups from acetyl-CoA to arylamines, arylhydroxylamines and arylhydrazines. They have wide specificity for aromatic amines, particularly serotonin, and can also catalyze acetyl transfer between arylamines without CoA.

Which drug is metabolized by N acetylation?

Drugs known to be metabolized by this pathway include procainamide, hydralazine, isoniazid, sulfapyridine, sulfadimidine, dapsone, an amine metabolite of nitrazepam, and some carcinogenic aromatic amines. Nongenetic factors may also affect the rate of acetylation.

What is NAT inhibitor?

This technology describes a method in which an inhibitor of an arylamine N-acetyl transferase (NAT), a member of a common enzyme family, is administered to a human to inhibit acetylation reactions resulting in production of cytotoxic or carcinogenic compounds in the treated individual.

What is a slow Acetylator?

Slow acetylators are people whose liver cannot completely detoxify reactive drug metabolites. For example, patients with sulfonamide-induced toxic epidermal necrolysis have been shown to have a slow acetylator genotype that results in increased production of sulfonamide hydroxylamine via the P-450 pathway.

What is metabolized by N acetyltransferase?

What is drug acetylation?

Abstract. N-Acetylation is a phase II conjugation reaction mediated in humans by the polymorphic N-acetyltransferase 2 (NAT2) and N-acetyltransferase 1 (NAT1). Acetylation of some drugs may be modestly decreased in patients with chronic liver disease, whereas acute liver injury has no effect on drug acetylation.

Are Asians fast Acetylators?

Slow Acetylators. Pharmacokinetics: Approximately 50 percent of African Americans and Caucasians are “slow acetylaters”, and the rest are “rapid acetylaters”; the majority of Eskimos and Asians are “rapid acetylaters.” …

What is rapid Acetylator?

: an organism that acetylates a substance during metabolism —used especially to describe the rate at which a person acetylates certain drugs (such as isoniazid, hydralazine, or sulfamethazine) in the body People known as slow acetylators, for instance, take a longer time than fast acetylators to clear certain drugs …

What is acetyl group example?

The acetyl moiety is a component of many organic compounds, including acetic acid, the neurotransmitter acetylcholine, acetyl-CoA, acetylcysteine, acetaminophen (also known as paracetamol), and acetylsalicylic acid (also known as aspirin)….Acetyl group.

What is acetyl give example?

When the hydrogen of an alcohol is replaced with an acetyl group via an acetylation reaction, the final product formed is an ester. One of the most common examples of an acetylation reaction is the acetylation of salicylic acid with acetic anhydride to afford acetic acid and acetylsalicylic acid as the products.

What is the meaning of arylamine?

any of a group of amines in which one or more of the hydrogen atoms of ammonia are replaced by aromatic groups. Words nearby arylamine. Origin of arylamine.

What is the meaning of ialamine?

arylamine: any of a group of amines in which one or more of the hydrogen atoms are replaced by aromatic groups. arylamine acetyltransferase see metachromatic leukodystrophy .

Does (-)-menthol affect arylamine N-acetyltransferase activity in human liver tumor cells?

Effects of (-)-menthol on arylamine N-acetyltransferase activity in human liver tumor cells. Sulfacontaining antibiotics contain a five- or six-member nitrogen-containing ring attached to the N1 nitrogen of the sulfonamide group and an arylamine group (H N) at the N4 position of the sulfonamide group (Pharmacotherapy 2004;24:856-70).

How many arylamine N-acetyltransferase genes are in Bacillus anthracis?

Cloning and molecular characterization of three arylamine N-acetyltransferase genes from Bacillus anthracis: identification of unusual enzymatic properties and their contribution to sulfamethoxazole resistance.