About Parkinson's Disease

 

What is Parkinson's disease?

Parkinson's disease (PD) is a brain disorder. It occurs when certain nerve cells (neurons) in a part of the brain called the substantia nigra die or become impaired. Normally, these cells produce a vital chemical known as dopamine. Dopamine allows smooth, coordinated function of the body's muscles and movement. When approximately 80% of the dopamine-producing cells are damaged, the symptoms of PD appear.

 

What are the signs and symptoms of Parkinson's disease?

The loss of dopamine production in the brain causes the primary symptoms of PD.

 

The key signs of PD are:

* Tremor (shaking)

* Slowness of movement

* Rigidity (stiffness)

* Difficulty with balance

 

Other signs of PD may include:

* Small, cramped handwriting

* Stiff facial expression

* Shuffling walk

* Muffled speech

* Depression

 

Who gets Parkinson's disease?

PD affects both men and women in almost equal numbers. It shows no social, ethnic, economic or geographic boundaries. In the United States, it is estimated that 60,000 new cases are diagnosed each year, joining the 1 million Americans who currently have PD. While the condition usually develops after the age of 65, 15% of those diagnosed are under 50. 

 

How is Parkinson's disease diagnosed? 

The process of making a PD diagnosis can be difficult. There is no X-ray or blood test that can confirm PD. A physician arrives at the diagnosis only after a thorough examination. Blood tests and brain scans known as magnetic resonance imaging (MRI) may be performed to rule out other conditions that have similar symptoms. People suspected of having PD should consider seeking the care of a neurologist who specializes in PD.

 

What is the treatment for Parkinson's disease?

There are a number of effective medicines that help to ease the symptoms of PD. Most symptoms are caused by lack of dopamine. The medicines most commonly used will attempt to either replace or mimic dopamine, which improves the tremor, rigidity and slowness associated with PD. Several new medicines are being studied that may slow the progression. Many promise to improve the lives of people with PD.

More Information:

www.parkinson.org/

www.michaeljfox.org

 

 

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