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The medical treatment of Parkinson disease from James Parkinson to George Cotzias.
Mov Disord. 2015 Jan; 30(1):4-18.MD

Abstract

It took exactly 150 years since James Parkinson's description in 1817 of the illness bearing his name until the development of effective therapy for this disorder, namely, the introduction of high-dosage levodopa by George Cotzias in 1967. During the first 50 years, no effective therapy was available, but neurologists reported using different agents, including metals. Then, around 1867, Charcot found solanaceous alkaloids to be somewhat helpful, and these became the accepted and popular therapy for the next 75 years. When basic scientists discovered that these alkaloids had central antimuscarinic activity, pharmaceutical chemists developed synthetic chemical agents that were equally effective, with possibly less adverse effects, and around 1950 these synthetic drugs became the standard medical therapy for Parkinson's disease (PD). The link between dopamine and PD did not take place until 1957, 140 years after Parkinson's Essay. The clue came from research on reserpine, a drug derived from the Rauwolfia plant that caused a sedative effect, now recognized as a drug-induced parkinsonian state. Initial investigations revealed that reserpine caused the release and depletion of serotonin stores in the brain. With that knowledge, Arvid Carlsson, a young pharmacologist in Sweden, decided to explore the possibility that reserpine might also affect brain catecholamines. In his now famous, elegant, and simple experiment, he showed that injecting l-dopa, the precursor of catecholamines, alleviated the reserpine-induced parkinsonian state in animals, whereas the precursor of serotonin failed to do so. Carlsson then developed a highly sensitive assay to measure dopamine, and his lab found that dopamine is selectively present in high concentrations in the striatum and that administered l-dopa could restore the dopamine depleted by reserpine. Carlsson postulated that all these findings implicate dopamine in motor disorders. Oleh Hornykiewicz, a young pharmacologist in Vienna, on being aware of the regional localization of brain dopamine, decided to measure it in the brains of people who had PD and postencephalitic parkinsonism. In 1960, he reported finding markedly depleted dopamine in the striatum in these conditions. Immediately after, Hornykiewicz teamed up with the geriatrician, Walther Birkmayer, to inject small doses of l-dopa intravenously (IV) into PD patients. They found benefit and pursued this treatment, but the gastrointestinal side effects limited the dosage, and many neurologists were doubtful that the effects from l-dopa were any better than those with antimuscarinic agents. A number of neurologists tested such low doses of IV l-dopa and even higher oral dosages, but without showing any dramatic benefit, not better than the antimuscarinics. Some of these studies were small, controlled trials. This general lack of efficacy with l-dopa prevailed, and neurologists were discouraged about l-dopa until 1967, when George C. Cotzias, a neuropharmacologist in New York, reported his results. He thought that PD may be result from the loss of neuromelanin in the substantia nigra, and he decided to try to replenish the depleted neuromelanin. Among the agents he tried was dl-dopa. He wisely began with low oral doses and increased the dosage slowly and steadily, thereby limiting the gastrointestinal complication. He also treated his patients for a long duration, months in a government-supported hospital. In the accompanying videotape of an interview Cotzias gave in 1970, he describes much of his success to be able to observe his patients over months while building up the dosage very slowly and observe for signs of toxicity. When higher doses, usually over 12 g/day, were reached, dramatic antiparkinsonian effects were observed, and a revolutionary new treatment for PD was established.

Authors+Show Affiliations

Columbia University College of Physicians and Surgeons, New York, New York, USA.

Pub Type(s)

Biography
Historical Article
Journal Article
Review

Language

eng

PubMed ID

25491387

Citation

Fahn, Stanley. "The Medical Treatment of Parkinson Disease From James Parkinson to George Cotzias." Movement Disorders : Official Journal of the Movement Disorder Society, vol. 30, no. 1, 2015, pp. 4-18.
Fahn S. The medical treatment of Parkinson disease from James Parkinson to George Cotzias. Mov Disord. 2015;30(1):4-18.
Fahn, S. (2015). The medical treatment of Parkinson disease from James Parkinson to George Cotzias. Movement Disorders : Official Journal of the Movement Disorder Society, 30(1), 4-18. https://doi.org/10.1002/mds.26102
Fahn S. The Medical Treatment of Parkinson Disease From James Parkinson to George Cotzias. Mov Disord. 2015;30(1):4-18. PubMed PMID: 25491387.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The medical treatment of Parkinson disease from James Parkinson to George Cotzias. A1 - Fahn,Stanley, Y1 - 2014/12/09/ PY - 2014/09/17/received PY - 2014/10/23/revised PY - 2014/10/27/accepted PY - 2014/12/11/entrez PY - 2014/12/11/pubmed PY - 2015/9/12/medline KW - alkaloids KW - antimuscarinics KW - dl-dopa KW - dopamine KW - l-dopa KW - reserpine SP - 4 EP - 18 JF - Movement disorders : official journal of the Movement Disorder Society JO - Mov Disord VL - 30 IS - 1 N2 - It took exactly 150 years since James Parkinson's description in 1817 of the illness bearing his name until the development of effective therapy for this disorder, namely, the introduction of high-dosage levodopa by George Cotzias in 1967. During the first 50 years, no effective therapy was available, but neurologists reported using different agents, including metals. Then, around 1867, Charcot found solanaceous alkaloids to be somewhat helpful, and these became the accepted and popular therapy for the next 75 years. When basic scientists discovered that these alkaloids had central antimuscarinic activity, pharmaceutical chemists developed synthetic chemical agents that were equally effective, with possibly less adverse effects, and around 1950 these synthetic drugs became the standard medical therapy for Parkinson's disease (PD). The link between dopamine and PD did not take place until 1957, 140 years after Parkinson's Essay. The clue came from research on reserpine, a drug derived from the Rauwolfia plant that caused a sedative effect, now recognized as a drug-induced parkinsonian state. Initial investigations revealed that reserpine caused the release and depletion of serotonin stores in the brain. With that knowledge, Arvid Carlsson, a young pharmacologist in Sweden, decided to explore the possibility that reserpine might also affect brain catecholamines. In his now famous, elegant, and simple experiment, he showed that injecting l-dopa, the precursor of catecholamines, alleviated the reserpine-induced parkinsonian state in animals, whereas the precursor of serotonin failed to do so. Carlsson then developed a highly sensitive assay to measure dopamine, and his lab found that dopamine is selectively present in high concentrations in the striatum and that administered l-dopa could restore the dopamine depleted by reserpine. Carlsson postulated that all these findings implicate dopamine in motor disorders. Oleh Hornykiewicz, a young pharmacologist in Vienna, on being aware of the regional localization of brain dopamine, decided to measure it in the brains of people who had PD and postencephalitic parkinsonism. In 1960, he reported finding markedly depleted dopamine in the striatum in these conditions. Immediately after, Hornykiewicz teamed up with the geriatrician, Walther Birkmayer, to inject small doses of l-dopa intravenously (IV) into PD patients. They found benefit and pursued this treatment, but the gastrointestinal side effects limited the dosage, and many neurologists were doubtful that the effects from l-dopa were any better than those with antimuscarinic agents. A number of neurologists tested such low doses of IV l-dopa and even higher oral dosages, but without showing any dramatic benefit, not better than the antimuscarinics. Some of these studies were small, controlled trials. This general lack of efficacy with l-dopa prevailed, and neurologists were discouraged about l-dopa until 1967, when George C. Cotzias, a neuropharmacologist in New York, reported his results. He thought that PD may be result from the loss of neuromelanin in the substantia nigra, and he decided to try to replenish the depleted neuromelanin. Among the agents he tried was dl-dopa. He wisely began with low oral doses and increased the dosage slowly and steadily, thereby limiting the gastrointestinal complication. He also treated his patients for a long duration, months in a government-supported hospital. In the accompanying videotape of an interview Cotzias gave in 1970, he describes much of his success to be able to observe his patients over months while building up the dosage very slowly and observe for signs of toxicity. When higher doses, usually over 12 g/day, were reached, dramatic antiparkinsonian effects were observed, and a revolutionary new treatment for PD was established. SN - 1531-8257 UR - https://www.unboundmedicine.com/medline/citation/25491387/The_medical_treatment_of_Parkinson_disease_from_James_Parkinson_to_George_Cotzias_ L2 - https://doi.org/10.1002/mds.26102 DB - PRIME DP - Unbound Medicine ER -