Inhibition of human benzylamine oxidase (BzAO) by analogues of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP). 1990

A J Devlin, and A R Bhatti, and A C Williams, and D B Ramsden
Department of Medicine, University of Birmingham, Queen Elizabeth Hospital, Edgbaston, U.K.

A sensitive assay for human plasma BzAO, involving the conversion of 14C-benzylamine to 14C-benzaldehyde, was developed. MPTP and several of its analogues were found to be competitive inhibitors of the enzyme. Ki values for the MPTP analogues in the presence of human plasma BzAO were determined. The analogues had a different rank order of inhibition of human plasma BzAO compared with the rank order of inhibition of bovine plasma BzAO found previously. MPTP and 1-methyl-4-(2-methylphenyl)-1,2,3,6-tetrahydropyridine (2'-CH3-MPTP), which are potent nigrostriatal toxins, were weak inhibitors of human plasma BzAO.

UI MeSH Term Description Entries
D007700 Kinetics The rate dynamics in chemical or physical systems.
D010300 Parkinson Disease A progressive, degenerative neurologic disease characterized by a TREMOR that is maximal at rest, retropulsion (i.e. a tendency to fall backwards), rigidity, stooped posture, slowness of voluntary movements, and a masklike facial expression. Pathologic features include loss of melanin containing neurons in the substantia nigra and other pigmented nuclei of the brainstem. LEWY BODIES are present in the substantia nigra and locus coeruleus but may also be found in a related condition (LEWY BODY DISEASE, DIFFUSE) characterized by dementia in combination with varying degrees of parkinsonism. (Adams et al., Principles of Neurology, 6th ed, p1059, pp1067-75) Idiopathic Parkinson Disease,Lewy Body Parkinson Disease,Paralysis Agitans,Primary Parkinsonism,Idiopathic Parkinson's Disease,Lewy Body Parkinson's Disease,Parkinson Disease, Idiopathic,Parkinson's Disease,Parkinson's Disease, Idiopathic,Parkinson's Disease, Lewy Body,Parkinsonism, Primary
D002230 Carbidopa An inhibitor of DOPA DECARBOXYLASE that prevents conversion of LEVODOPA to dopamine. It is used in PARKINSON DISEASE to reduce peripheral adverse effects of LEVODOPA. It has no anti-parkinson activity by itself. Methyldopahydrazine,Carbidopa, (R)-Isomer,Carbidopa, (S)-Isomer,Lodosin,Lodosyn,MK-485,MK-486,MK 485,MK 486,MK485,MK486
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001595 Benzylamine Oxidase An aspect of monoamine oxidase, EC 1.4.3.4. Catalyzes the oxidation of benzylamine to form benzaldehyde, ammonia and hydrogen peroxide. Clorgyline-Resistant Amine Oxidase,Amine Oxidase, Clorgyline-Resistant,Clorgyline Resistant Amine Oxidase,Oxidase, Benzylamine,Oxidase, Clorgyline-Resistant Amine
D012642 Selegiline A selective, irreversible inhibitor of Type B monoamine oxidase that is used for the treatment of newly diagnosed patients with PARKINSON DISEASE, and for the treatment of depressive disorders. The compound without isomeric designation is Deprenyl. Deprenalin,Deprenil,Deprenyl,E-250,Eldepryl,Emsam,Humex,Jumex,L-Deprenyl,Selegiline Hydrochloride,Selegiline Hydrochloride, (R)-Isomer,Selegiline Hydrochloride, (R,S)-Isomer,Selegiline Hydrochloride, (S)-Isomer,Selegiline, (R)-Isomer,Selegiline, (R,S)-Isomer,Selegiline, (S)-Isomer,Selegyline,Yumex,Zelapar,E 250,E250
D015259 Dopamine Agents Any drugs that are used for their effects on dopamine receptors, on the life cycle of dopamine, or on the survival of dopaminergic neurons. Dopamine Drugs,Dopamine Effect,Dopamine Effects,Dopaminergic Agents,Dopaminergic Drugs,Dopaminergic Effect,Dopaminergic Effects,Agents, Dopamine,Agents, Dopaminergic,Drugs, Dopamine,Drugs, Dopaminergic,Effect, Dopamine,Effect, Dopaminergic,Effects, Dopamine,Effects, Dopaminergic
D015632 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine A dopaminergic neurotoxic compound which produces irreversible clinical, chemical, and pathological alterations that mimic those found in Parkinson disease. MPTP,N-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine

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