parkinsonian syndrome

When a large fraction of them die, the result is a Parkinsonian syndrome.

Hallucinations can occur in Parkinsonian syndromes for a variety of reasons.

The main motor symptoms are collectively called parkinsonism, or a "parkinsonian syndrome".

Robert Colescott suffered from Parkinsonian syndrome, and died June 4, 2009 at his home in Tucson.

In addition to caring for patients with Parkinsonian syndromes and dementia, his clinical activities also include the work up and treatment of autonomic disorders.

In 1983, designer drug users took MPTP, which created a Parkinsonian syndrome.

Parkinson's disease is often defined as a parkinsonian syndrome that is idiopathic (having no known cause), although some atypical cases have a genetic origin.

Other causes that can secondarily produce a parkinsonian syndrome are Alzheimer's disease, multiple cerebral infarction and drug-induced parkinsonism.

In 1961, Wohlfart et al. reported a case of klazomania accompanied by oculogyric crises, another symptom of postencephalitic Parkinsonian syndrome.

Some syndromes, such as Down syndrome, have only one cause; others, such as Parkinsonian syndrome, have multiple possible causes.

The scientific focus of Wenning's work centres on the research of atypical parkinsonian syndromes, particularly MSA, using experimental, clinicopathological and therapeutic studies.

Parkinsonian syndrome (also known as Parkinsonism, atypical Parkinson's or secondary Parkinson's) is a neurological syndrome characterized by tremor, hypokinesia, rigidity, and postural instability.

Parkinsonian syndromes can be divided into four subtypes according to their origin: primary or idiopathic, secondary or acquired, hereditary parkinsonism, and parkinson plus syndromes or multiple system degeneration.

The exact mechanism of action in parkinsonian syndromes is not precisely understood, but it is known that trihexyphenidyl blocks efferent impulses in parasympathetically innervated structures like smooth muscles (spasmolytic activity), salivary glands, and eyes (mydriasis).

These dopamine cells are especially vulnerable to damage, and a variety of insults, including encephalitis (as depicted in the book and movie "Awakenings"), repeated sports-related concussions, and some forms of chemical poisoning, can lead to substantial cell loss, producing a Parkinsonian syndrome that is similar in its main features to Parkinson's disease.