Biomaterial Database

Inhibition of aminoacid decarboxylases by non-steroidal antiinflammatory drugs. 1984

G Bruni, and P Dal Pra, and G Segre

Several non-steroidal antiinflammatory drugs (NSAID) were shown to inhibit to various extents the decarboxylases of ornithine, lysine, histidine, arginine, and tyrosine. The most sensitive enzyme was ornithine decarboxylase, for which piroxicam, benoxaprofen and aminophenazone showed an IC50 of 0.007 mM; ibuprofen competitively inhibits the lysine decarboxylase. The most effective NSAID's in inhibiting histidine decarboxylase were mefenamic acid, ibuprofen and flufenamic acid. Arginine and tyrosine decarboxylase were inhibited by NSAID's only at high concentrations. None of the decarboxylase inhibitions were reversed by pyridoxal phosphate. Subplantar injection of the 5 amines formed by these aminoacid decarboxylases elicited a paw oedema in rat which was not antagonized by the various NSAID's. Some of the NSAID's stimulated all the decarboxylases and did not antagonize the carrageenin-induced paw oedema. With one exception, all the NSAID's tested in vivo inhibited the elimination of 14CO2 from labeled ornithine and lysine. The inhibition of certain aminoacid decarboxylases, particularly ornithine and lysine decarboxylase, appears to be a noteworthy mechanism of action for certain NSAID's.

UI	MeSH Term	Description	Entries
D007700	Kinetics	The rate dynamics in chemical or physical systems.
D008239	Lysine	An essential amino acid. It is often added to animal feed.	Enisyl,L-Lysine,Lysine Acetate,Lysine Hydrochloride,Acetate, Lysine,L Lysine
D002262	Carboxy-Lyases	Enzymes that catalyze the addition of a carboxyl group to a compound (carboxylases) or the removal of a carboxyl group from a compound (decarboxylases). EC 4.1.1.	Carboxy-Lyase,Decarboxylase,Decarboxylases,Carboxy Lyase,Carboxy Lyases
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D000893	Anti-Inflammatory Agents	Substances that reduce or suppress INFLAMMATION.	Anti-Inflammatory Agent,Antiinflammatory Agent,Agents, Anti-Inflammatory,Agents, Antiinflammatory,Anti-Inflammatories,Antiinflammatories,Antiinflammatory Agents,Agent, Anti-Inflammatory,Agent, Antiinflammatory,Agents, Anti Inflammatory,Anti Inflammatories,Anti Inflammatory Agent,Anti Inflammatory Agents
D001120	Arginine	An essential amino acid that is physiologically active in the L-form.	Arginine Hydrochloride,Arginine, L-Isomer,DL-Arginine Acetate, Monohydrate,L-Arginine,Arginine, L Isomer,DL Arginine Acetate, Monohydrate,Hydrochloride, Arginine,L Arginine,L-Isomer Arginine,Monohydrate DL-Arginine Acetate
D014443	Tyrosine	A non-essential amino acid. In animals it is synthesized from PHENYLALANINE. It is also the precursor of EPINEPHRINE; THYROID HORMONES; and melanin.	L-Tyrosine,Tyrosine, L-isomer,para-Tyrosine,L Tyrosine,Tyrosine, L isomer,para Tyrosine
D051381	Rats	The common name for the genus Rattus.	Rattus,Rats, Laboratory,Rats, Norway,Rattus norvegicus,Laboratory Rat,Laboratory Rats,Norway Rat,Norway Rats,Rat,Rat, Laboratory,Rat, Norway,norvegicus, Rattus
D065105	Aromatic Amino Acid Decarboxylase Inhibitors	Compounds and drugs that block or inhibit the enzymatic action of AROMATIC AMINO ACID DECARBOXYLASES. Pharmaceutical agents in this category are used in conjunction with LEVODOPA in order to slow its metabolism.	Aromatic-L-Amino-Acid Decarboxylase Inhibitors,DOPA Decarboxylase Inhibitors,Dihydroxyphenylalanine Decarboxylase Inhibitors,Aromatic L Amino Acid Decarboxylase Inhibitors,Decarboxylase Inhibitors, Aromatic-L-Amino-Acid,Decarboxylase Inhibitors, DOPA,Decarboxylase Inhibitors, Dihydroxyphenylalanine,Inhibitors, Aromatic-L-Amino-Acid Decarboxylase,Inhibitors, DOPA Decarboxylase,Inhibitors, Dihydroxyphenylalanine Decarboxylase
D065108	Ornithine Decarboxylase Inhibitors	Substances and drugs that inhibit or block the activity of ORNITHINE DECARBOXYLASE.	Decarboxylase Inhibitors, Ornithine,Inhibitors, Ornithine Decarboxylase