(Redirected from Velvet bean)
'''Mucuna pruriens''' (
syn. ''Dolichos pruriens'') is a tropical
legume known by a multitude of common names, including 'velvet bean', 'cowitch', 'cowhage', 'kapikachu', 'nescafe', 'sea bean', 'kratzbohnen', 'konch', yerepe (Yoruba) and 'atmagupta'. The plant is an annual, climbing shrub with long vines that can reach over 15 m.
It bears white, lavender, or purple
flowers and pods that are covered in loose orange hairs which cause a severe itch if they come in contact with skin. The beans are shiny black or brown. It is found in tropical
Africa,
India and the
Caribbean.
''Mucuna pruriens'' seed powder contains high concentrations of
levodopa, a direct precursor of the neurotransmitter
dopamine and has long been used in traditional Ayurvedic Indian medicine for diseases including parkinsonism
[Manyam BV, Dhanasekaran M, Hare TA. Effect of antiparkinson drug HP-200 (Mucuna pruriens) on the central monoaminergic neurotransmitters. 2004. Phytother Res 18:97-101. DOI: 10.1002/ptr.1407 'PMID 15022157'][Manyam BV, Dhanasekaran M, Hare TA. Neuroprotective effects of the antiparkinson drug Mucuna pruriens. 2004. Phytother Res 18:706-712. DOI: 10.1002/ptr.1514 'PMID 15478206']. In large amounts (30 g dose) it and has been shown to be equally effective in the treatment of parkinsons disease as pure levodopa/
carbidopa medications but no data on long-term efficacy and tolerability is available
[Katzenschlager R, Evans A, Manson A, et al. Mucuna pruriens in Parkinson's disease: a double blind clinical and pharmacological study. 2004. J Neurol Neurosurg Psychiatry 75:1672-1677. DOI: 10.1136/jnnp.2003.028761 'PMID 15548480' free full text]. Another benefit of Mucuna is that it can increase the production of
human growth hormone, and extracts are commonly sold as body-building supplements.
Mucuna has also been shown to have diuretic effects. It increases tissue resiliency and improves coordination.
The hairs lining the pods contain serotonin and are very dangerous as they can cause severe irritations. In Africa these hairs are used to murder people by sprinkling them on to the food of the unsuspeting victim, who would then die from internal bleeding as the sharp hairs slice into the stomach and the intestinal lining.
In history, Mucuna has been used as an aphrodisiac
[Amin KMY, Khan MN, Zillur-Rehman S, et al. (1996) "Sexual function improving effect of Mucuna pruriens in sexually normal male rats". ''Fitoterapia'', jrg.67 (nr.1): pp. 53-58. 'Quote:' ''The seeds of M. pruriens are widely used for treating male sexual dysfunction in Tibb-e-Unani (Unani Medicine), the traditional system of medicine of Indo-Pak sub-continent.'']. It is still used to increase libido in both men and women due to its
dopamine inducing properties. Dopamine has a profound influence on sexual function
[Giuliano F, Allard J. Dopamine and male sexual function. 2001. Eur Urol 40:601-608. 'PMID 11805404'][Giuliano F, Allard J. Dopamine and sexual function. 2001. Int J Impot Res 13 Suppl 3:S18-S28. DOI: 10.1038/sj.ijir.3900719 'PMID 11477488' free full text].
In addition to levodopa, Mucuna allegedly also contains
5-HTP,
nicotine,
N,N-DMT,
bufotenine, and
5-MeO-DMT. As such, it would have
psychedelic effects, and has purportedly been used in
ayahuasca preparations.
[1]
See Also
★
Psychedelic plants
External links
★
''Mucuna puriens'' var. ''utilis'' (Photos)
References
1. Erowid entry(2002), [1]