Parkinson's & Movement disorders

Levodopa + carbidopa does not modify disease in early Parkinson

(HealthDay)—For patients with early Parkinson disease, treatment with levodopa combined with carbidopa has no disease-modifying effect, according to a study published in the Jan. 24 issue of the New England Journal of Medicine.

Medications

How gut bacteria affect the treatment of Parkinson's disease

Patients with Parkinson's disease are treated with levodopa, which is converted into dopamine, a neurotransmitter in the brain. In a study published on 18 January in the journal Nature Communications, scientists from the ...

Alzheimer's disease & dementia

Drug may help those with dementia with Lewy bodies

New help may be on the way for people with dementia with Lewy bodies, which is the second most common neurodegenerative type of dementia after Alzheimer's disease. The disease can cause movement problems and issues such as ...

Parkinson's & Movement disorders

FDA OKs new drug as add-on treatment for Parkinson's

U.S. regulators have approved the first new drug in a decade for Parkinson's disease, a neurological disorder that causes tremors and movement difficulties.

Parkinson's & Movement disorders

Inhaled levodopa may rapidly relieve Parkinson's symptoms

(HealthDay)—An inhaled version of the Parkinson's drug levodopa can help when patients experience symptoms between doses of the pill form of the medication, according to a study published in the Oct. 12 issue of Science ...

Ophthalmology

Levodopa shows promise against macular degeneration

(HealthDay)— Levodopa (L-dopa) might hold potential for preventing or treating macular degeneration, according to a study published online Oct. 30 in The American Journal of Medicine.

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L-DOPA

L-DOPA (L-3,4-dihydroxyphenylalanine) is a chemical that is made and used as part of the normal biology of some animals and plants. Some animals including humans make it via biosynthesis from the amino acid L-tyrosine. L-DOPA is the precursor to the neurotransmitters dopamine, norepinephrine (noradrenaline), and epinephrine (adrenaline) collectively known as catecholamines. L-DOPA can be manufactured and in its pure form is sold as a psychoactive drug with the INN levodopa; trade names include Sinemet, Parcopa, Atamet, Stalevo, Madopar, Prolopa, etc.). As a drug it is used in the clinical treatment of Parkinson's disease and dopamine-responsive dystonia.

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