Page last updated: 2024-12-05

alpha-methyldopamine

Description Research Excerpts Clinical Trials Roles Classes Pathways Study Profile Bioassays Related Drugs Related Conditions Protein Interactions Research Growth Market Indicators

Alpha-methyldopamine (α-MeDA) is a synthetic catecholamine analog of dopamine. It is a potent dopamine agonist and has been studied for its potential therapeutic effects in Parkinson's disease and other neurodegenerative disorders. α-MeDA is synthesized by methylation of dopamine at the alpha carbon. It has been shown to cross the blood-brain barrier and exert its effects by stimulating dopamine receptors in the brain. Studies have indicated that α-MeDA can improve motor function and reduce tremors in animal models of Parkinson's disease. However, its clinical use is limited due to its potential side effects, including hypotension, anxiety, and hallucinations. α-MeDA is also used as a research tool to study dopamine neurotransmission and its role in various neurological and psychiatric conditions.'

Cross-References

ID SourceID
PubMed CID17005
CHEMBL ID28278
CHEBI ID193722
SCHEMBL ID633687
MeSH IDM0080795

Synonyms (33)

Synonym
pyrocatechol, 4-(2-aminopropyl)-, (+-)-
(+-)-4-(2-aminopropyl)-1,2-benzenediol
dl-alpha-methyldopamine
1,2-benzenediol, 4-(2-aminopropyl)-, (+-)-
ALPHA-METHYLDOPAMINE ,
methyldopamine
CHEMBL28278
AKOS000159953
4-(2-aminopropyl)benzene-1,2-diol
555-64-6
CHEBI:193722
a-methyldopamine
4-(2-aminopropyl)-1,2-benzenediol
3,4-dihydroxyamphetamine
catecholamphetamine
xq9a7wcy2l ,
1,2-benzenediol, 4-(2-aminopropyl)-
unii-xq9a7wcy2l
3583-05-9
AKOS017269169
SCHEMBL633687
.alpha.-methyldopamine, (+/-)-
.alpha.-methyldopamine, (rs)-
(+/-)-.alpha.-methyldopamine
dl-.alpha.-methyldopamine
4-(2-aminopropyl)pyrocatechol
.alpha.-methyldopamine
KSRGADMGIRTXAF-UHFFFAOYSA-N
(+/-)-alpha-methyldopamine
Q4353440
DTXSID00897235
EN300-150878
PD131038

Research Excerpts

Toxicity

ExcerptReferenceRelevance
" These findings suggest that neither of MDA's major metabolites mediate its toxic effects on 5-HT neurons and that either a minor metabolite is responsible or that alternate mechanisms are involved."( Major metabolites of (+/-)3,4-methylenedioxyamphetamine (MDA) do not mediate its toxic effects on brain serotonin neurons.
McCann, UD; Ricaurte, GA, 1991
)
0.28
" LD50 studies in mice have established that 6-OH-alpha-Me-Dopa is over four times more toxic than alpha-Me-Dopa."( Synthetic and preliminary hemodynamic and whole animal toxicity studies on (R,S)-, (R)-, and (S)-2-methyl-3-(2,4,5-trihydroxyphenyl)alanine.
Castagnoli, N; Cheng, A; Karashima, D; Melmon, KL; Musson, DG; Rubiero, H, 1980
)
0.26
" The toxic effects induced following incubation of hepatocyte suspensions with these metabolites were evaluated by measuring cell viability, the extent of lipid peroxidation, levels of glutathione (GSH) and glutathione disulfide (GSSG), the formation of GSH conjugates, and the activities of GSSG reductase (GR), GSH peroxidase (GPX), and GSH S-transferase (GST)."( Hepatotoxicity of 3,4-methylenedioxyamphetamine and alpha-methyldopamine in isolated rat hepatocytes: formation of glutathione conjugates.
Amado, F; Bastos, ML; Borges, F; Carvalho, F; Carvalho, M; Fernandes, E; Milhazes, N; Monks, TJ; Remião, F, 2004
)
0.57
" The indirect effect of MDMA mediated by a sustained high level of circulating biogenic amines may contribute to the cardiotoxic effects, but other factors, like the direct toxic effects of MDMA and its metabolites in cardiac cells, remain to be investigated."( Metabolism is required for the expression of ecstasy-induced cardiotoxicity in vitro.
Amado, F; Bastos, ML; Borges, F; Carvalho, F; Carvalho, M; Fernandes, E; Gonçalves, MJ; Milhazes, N; Monteiro, Mdo C; Remião, F; Seabra, V, 2004
)
0.32
" The aims of the present in vitro study were: (1) to evaluate and compare the hepatotoxic effects of MDMA and one of its main metabolites, N-methyl-alpha-methyldopamine (N-Me-alpha-MeDA) and (2) to investigate the ability of antioxidants, namely ascorbic acid and N-acetyl-L-cysteine (NAC), to prevent N-Me-alpha-MeDA-induced toxic injury, using freshly isolated rat hepatocytes."( The toxicity of N-methyl-alpha-methyldopamine to freshly isolated rat hepatocytes is prevented by ascorbic acid and N-acetylcysteine.
Bastos, ML; Borges, F; Carvalho, F; Carvalho, M; Fernandes, E; Milhazes, N; Remião, F, 2004
)
0.83
" The results confirmed our hypothesis as the metabolite proved to be more than 100-fold more toxic than the parent compound 3,4-methylenedioxymethamphetamine."( Influence of CYP2D6 polymorphism on 3,4-methylenedioxymethamphetamine ('Ecstasy') cytotoxicity.
Bastos, Mde L; Boer, Dd; Branco, PS; Brulport, M; Carmo, H; Carvalho, F; Doehmer, J; Ferreira, LM; Hengstler, JG; Hermes, M; Krebsfaenger, N; Oesch, F; Remião, F; Schön, MR; Silva, R, 2006
)
0.33
" These outcomes suggest that MDMA metabolism has hazard implications to liver cells even when metabolites are found in low concentrations, as they contribute additively to the overall toxic effect of MDMA."( Mixtures of 3,4-methylenedioxymethamphetamine (ecstasy) and its major human metabolites act additively to induce significant toxicity to liver cells when combined at low, non-cytotoxic concentrations.
Carmo, H; Carvalho, F; da Silva, DD; Silva, E, 2014
)
0.4
" We showed that MDMA metabolites exhibited toxicity to SH-SY5Y differentiated cells, being the GSH and NAC conjugates more toxic than their catecholic precursors and MDMA."( "Ecstasy"-induced toxicity in SH-SY5Y differentiated cells: role of hyperthermia and metabolites.
Barbosa, DJ; Bastos, ML; Branco, PS; Capela, JP; Carvalho, F; Fernandes, E; Ferreira, LM; Silva, R, 2014
)
0.4

Pharmacokinetics

ExcerptReferenceRelevance
" Curiously, the approximate elimination half-life (t(1/2)) of MDMA at 18 degrees C (136 min) and 31 degrees C (144 min) was increased compared with 24 degrees C (90 min) and is most likely because of volume of distribution changes induced by core temperature alterations."( Ambient temperature effects on 3,4-methylenedioxymethamphetamine-induced thermodysregulation and pharmacokinetics in male monkeys.
Banks, ML; Czoty, PW; Kisor, DF; Nader, MA; Nichols, DE; Sprague, JE, 2007
)
0.34

Dosage Studied

ExcerptRelevanceReference
"Hepatic injury after 3,4-methylenedioxymethamphetamine (MDMA; ecstasy) intoxications is highly unpredictable and does not seem to correlate with either dosage or frequency of use."( Mixtures of 3,4-methylenedioxymethamphetamine (ecstasy) and its major human metabolites act additively to induce significant toxicity to liver cells when combined at low, non-cytotoxic concentrations.
Carmo, H; Carvalho, F; da Silva, DD; Silva, E, 2014
)
0.4
[information is derived through text-mining from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Drug Classes (1)

ClassDescription
amphetaminesAmines that constitute a class of central nervous system stimulants based on the structure of the parent amphetamine 1-phenylpropan-2-amine.
[compound class information is derived from Chemical Entities of Biological Interest (ChEBI), Hastings J, Owen G, Dekker A, Ennis M, Kale N, Muthukrishnan V, Turner S, Swainston N, Mendes P, Steinbeck C. (2016). ChEBI in 2016: Improved services and an expanding collection of metabolites. Nucleic Acids Res]

Bioassays (6)

Assay IDTitleYearJournalArticle
AID116921Compound was tested for toxicity (lethal dose) in male white swiss mice1980Journal of medicinal chemistry, Dec, Volume: 23, Issue:12
Synthetic and preliminary hemodynamic and whole animal toxicity studies on (R,S)-, (R)-, and (S)-2-methyl-3-(2,4,5-trihydroxyphenyl)alanine.
AID132337Compound concentration that causes inhibition of [3H]-acetyl choline release by 50% was determined using reserpine-alpha MPT treated mice striatal slices1984Journal of medicinal chemistry, May, Volume: 27, Issue:5
Dopaminergic agonists: comparative actions of amine and sulfonium analogues of dopamine.
AID1132813Acute pressor activity in iv dosed Sprague-Dawley rat assessed as duration of arterial systolic blood pressure by 30 mmHg maintenance1978Journal of medicinal chemistry, Jun, Volume: 21, Issue:6
Oxidative and cardiovascular studies on natural and synthetic catecholamines.
AID1132810Dissociation constant, pKa of the compound1978Journal of medicinal chemistry, Jun, Volume: 21, Issue:6
Oxidative and cardiovascular studies on natural and synthetic catecholamines.
AID1132812Acute pressor activity in iv dosed Sprague-Dawley rat assessed as dose required to increase arterial systolic blood pressure by 30 mmHg relative to dopamine1978Journal of medicinal chemistry, Jun, Volume: 21, Issue:6
Oxidative and cardiovascular studies on natural and synthetic catecholamines.
AID1132811Acute pressor activity in iv dosed Sprague-Dawley rat assessed as dose required to increase arterial systolic blood pressure by 30 mmHg1978Journal of medicinal chemistry, Jun, Volume: 21, Issue:6
Oxidative and cardiovascular studies on natural and synthetic catecholamines.
[information is prepared from bioassay data collected from National Library of Medicine (NLM), extracted Dec-2023]

Research

Studies (47)

TimeframeStudies, This Drug (%)All Drugs %
pre-199022 (46.81)18.7374
1990's8 (17.02)18.2507
2000's8 (17.02)29.6817
2010's9 (19.15)24.3611
2020's0 (0.00)2.80
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Market Indicators

Research Demand Index: 18.11

According to the monthly volume, diversity, and competition of internet searches for this compound, as well the volume and growth of publications, there is estimated to be moderate demand-to-supply ratio for research on this compound.

MetricThis Compound (vs All)
Research Demand Index18.11 (24.57)
Research Supply Index3.95 (2.92)
Research Growth Index4.43 (4.65)
Search Engine Demand Index15.26 (26.88)
Search Engine Supply Index2.00 (0.95)

This Compound (18.11)

All Compounds (24.57)

Study Types

Publication TypeThis drug (%)All Drugs (%)
Trials2 (4.08%)5.53%
Reviews3 (6.12%)6.00%
Case Studies3 (6.12%)4.05%
Observational0 (0.00%)0.25%
Other41 (83.67%)84.16%
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]