Levodopa

Publication Title: 
International Journal of Cosmetic Science

This study aimed to evaluate the free radical scavenging and inhibition properties of five medicinal plants, including Quercus infectoria Olive., Terminalia chebula Retz., Lavendula stoechas L., Mentha longifolia L., Rheum palmatum L., toward the activity of mushroom tyrosinase using L-tyrosine and L-3,4-dihydroxyphenylalanine (L-DOPA) as the substrate.The methanol extracts of Q. infectoria and T.

Author(s): 
Khazaeli, P.
Goldoozian, R.
Sharififar, F.
Publication Title: 
InvestigaciÛn ClÌnica

Wilson disease is a hereditary disorder caused by mutations of the ATP7B gene, which leads to intoxication with copper as a result of an unbalance of copper homeostasis. The clinical manifestations resulting from this intoxication are related to the affectation of liver and the encephalon in most cases. Several animal models are currently available for the study of the malady. However, in such models no neurological symptoms are observed, which limits their use for the study of pathogenic effects of this disease on the central nervous system.

Author(s): 
Arcaya, JosÈ Luis
Tejeda, Carlos Mario
Salazar, Ubalguis
Silva, Ernesto JosÈ
Urdaneta, Karla
Varela, Krystal
Publication Title: 
The New England Journal of Medicine
Author(s): 
Schneider, E. L.
Reed, J. D.
Publication Title: 
Nihon Yakurigaku Zasshi. Folia Pharmacologica Japonica

The effects of 1-[2-[bis (4-fluorophenyl)methoxy]ethyl]-4-(3- phenylpropyl) piperazine dihydrochloride (I-893) on the central nervous system were behaviorally and electroencephalographically investigated. Intraperitoneally injected I-893 (5-10 mg/kg) dose-dependently increased spontaneous motor activity in mice, but repeated injections did not affect the increase in the locomotor activity. In reserpinized mice, spontaneous motor activity was not increased by oral I-893.

Author(s): 
Nagase, T.
Hotta, K.
Morita, S.
Sakai, K.
Yamane, M.
Omote, M.
Mizusawa, H.
Publication Title: 
Nihon Rinsho. Japanese Journal of Clinical Medicine

The purpose of the new drugs for Parkinson's disease is control of the long-term levodopa treatment syndromes, especially wearing-off phenomenon and dyskinesia. Therefore, they show long T1/2. Most of them are classified into dopamine agonists. Others are monoamine oxidase B inhibitor and cathecole-o-methyltransferase inhibitor. Marketed dopamine agonists are bromocriptine, pergolide, talipexole, and cabergoline in Japan. Except talipexole, they are all ergot alkaloid derivatives. Their affinity for dopamine receptor is D2 group, and their T1/2 are longer than levodopa.

Author(s): 
Hasegawa, K.
Publication Title: 
Journal of Neurology, Neurosurgery, and Psychiatry

BACKGROUND: The seed powder of the leguminous plant, Mucuna pruriens has long been used in traditional Ayurvedic Indian medicine for diseases including parkinsonism. We have assessed the clinical effects and levodopa (L-dopa) pharmacokinetics following two different doses of mucuna preparation and compared them with standard L-dopa/carbidopa (LD/CD). METHODS: Eight Parkinson's disease patients with a short duration L-dopa response and on period dyskinesias completed a randomised, controlled, double blind crossover trial.

Author(s): 
Katzenschlager, R.
Evans, A.
Manson, A.
Patsalos, P. N.
Ratnaraj, N.
Watt, H.
Timmermann, L.
Van der Giessen, R.
Lees, A. J.
Publication Title: 
PloS One

BACKGROUND: The Ayurvedic medicinal system claims Mucuna pruriens (MP) to possess pro-male fertility, aphrodisiac and adaptogenic properties. Some scientific evidence also supports its pro-male fertility properties; however, the mechanism of its action is not yet clear. The present study aimed at demonstrating spermatogenic restorative efficacy of MP and its major constituent L-DOPA (LD), and finding the possible mechanism of action thereof in a rat model.

Author(s): 
Singh, Akhand Pratap
Sarkar, Saumya
Tripathi, Muktanand
Rajender, Singh
Publication Title: 
Movement Disorders: Official Journal of the Movement Disorder Society

Neurologic diseases (Vata rogas, Sanskrit) and the pharmacologic treatment of them were described in the ancient Indian medical system--Ayurveda. This article explores paralysis agitans, which was described under the name Kampavata. Mucuna pruriens (Atmagupta, Sanskrit), which contains levodopa, was used in the treatment of Kampavata.

Author(s): 
Manyam, B. V.
Publication Title: 
Journal of Alternative and Complementary Medicine (New York, N.Y.)

The natural occurrence of antiparkinsonian drugs in plants--anticholinergics in Datura stramonium, levodopa in Mucuna pruriens and Vicia faba, dopamine agonist activity in Claviceps purpura, and MAO inhibitor activity in Banisteria caapi-are known. Our study examined the efficacy and tolerability of HP-200, derived from Mucuna prurient, in patients with Parkinson's disease. Sixty patients with Parkinson's disease (46 male and 14 female) with a mean (+/- SD) age of 59 +/- 9 years were treated in an open study for 12 weeks.

Publication Title: 
Journal of the Neurological Sciences

Ayurveda, the Indian system of traditional medicine, uses a concoction of several spices, herbs and minerals for the treatment of diseases. In a clinical prospective study we have evaluated the efficacy of Ayurveda treatment (a concoction in cow's milk of powdered Mucuna pruriens and Hyoscyamus reticulatus seeds and Withania somnifera and Sida cordifolia roots) in 18 clinically diagnosed (with a mean Hoen and Yahr value of 2.22) parkinsonian patients.

Author(s): 
Nagashayana, N.
Sankarankutty, P.
Nampoothiri, M. R.
Mohan, P. K.
Mohanakumar, K. P.

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