decarboxylation

L-DOPA (Levodopa) is an amino acid precursor of dopamine with antiparkinsonian properties. It is a prodrug converted to dopamine by DOPA decarboxylase and can cross the blood-brain barrier. In the brain, levodopa is decarboxylated to dopamine, stimulating dopaminergic receptors and compensating for depleted endogenous dopamine in Parkinson's disease. To ensure adequate concentrations reach the central nervous system, levodopa is administered with carbidopa, a decarboxylase inhibitor that does not cross the blood-brain barrier, reducing peripheral decarboxylation and increasing CNS dopamine delivery.

Histamine (Ergamine) is an amine derived by enzymatic decarboxylation of HISTIDINE. It is a powerful stimulant of gastric secretion, a constrictor of bronchial smooth muscle, a vasodilator, and also a centrally acting neurotransmitter.

Dopamine hydrochloride (ASL279), a naturally occurring catecholamine formed by decarboxylation of dihydroxyphenylalanine and a precursor of norepinephrine and epinephrine, binds to alpha-1- and beta-1- adrenergic receptors.

Pyridoxal phosphate (Vitamin B6 phosphate) is the active form of vitamin B6 and a coenzyme for many pyridoxal phosphate (PLP)-dependent enzymes. PLP is involved in numerous enzymatic transamination, decarboxylation and deamination reactions; it is necessary for the synthesis of amino acids and amino acid metabolites, and for the synthesis and or catabolism of certain neurotransmitters, including the conversion of glutamate into gamma-aminobutyric acid (GABA) and levodopa into dopamine. PLP can be used as a dietary supplement in cases of vitamin B6 deficiency. Reduced levels of PLP in the brain can cause neurological dysfunction.

Phenylpropiolic acid (3-Phenylpropiolic acid) is an enzyme extinguishing agent used in palladium-catalyzed decarboxylation coupling reactions.

Thiamine pyrophosphate (Cocarboxylase) is a vitamin B-1 derivative that acts as a coenzyme of transketolase. Thiamine pyrophosphate is used in studies to assess decarboxylation mechanisms in biological systems.

Tyramine hydrochloride is a biogenic trace amine that is generated via the decarboxylation of the amino acid tyrosine, exhibiting neuromodulatory properties as well as cardiovascular and immunological effects.

Succinyl phosphonate is a selective α-ketoglutarate dehydrogenase (α-KGDHC ) and OGDHC inhibitor that inhibits α-ketoglutarate oxidative decarboxylation. Succinyl phosphonate trisodium salt inhibits glutamate-induced ROS generation in glutamate-stimulated hippocampal neurons and can be used to study neurodegenerative diseases.

Phosphatidylethanolamine (PE) contains phospholipids found in mammals, formed by decarboxylation of phosphatidylserine.

(±)-Jasmonic acid (trans-Jasmonic acid) is a compound found in grapevine inflorescences and fruits with pro-aging activity, inhibiting chlorophyll levels in green and yellowing barley leaf segments, suppressing rice seedling elongation, and participating in biogenic amine chemical coupling through decarboxylation with both aliphatic and aromatic α-amino acids.