Archive for September, 2011

Role Of Dopamine In Parkinsons Disease

September 30th, 2011

The role of dopamine in Parkinsons disease is crucial. In fact, the main reason why the brain cannot have proper control of muscle movements is because of the deficiency of this neurotransmitter.

The disease is a result of the lack of dopamine, which leads difficulties in controlling muscular movements. Symptoms like tremors, muscle stiffness, and loss of balance could then be evident. Such symptoms are important to identifying the diagnosis and treatment of Parkinson’s.

Dopamine is a chemical messenger responsible for exchanging signals from our brains to our muscles. The role of dopamine in Parkinsons disease basically prevents the brain from communicating properly with the muscles, hence problems in muscle control is experienced.

As a result of this deficiency, symptoms like stiffening of muscles, shaking or tremors, and even difficulties in moving may surface. Loss of balance, difficulty in walking and swallowing can also be experienced.

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The Symptoms of Parkinsons Disease

September 28th, 2011

Parkinsons Disease is a chronic, progressive, neuromuscular condition. It is caused by changes in the basal ganglia of the brain, which manifest as disturbances of motor function distinguished by the slowing and weakening of voluntary movement, including those expressing emotion.

Parkinsons Disease displays three principal characteristics, or symptoms: rigidity, brakykinesia and tremor.

Rigidity

Rigidity is caused by increased muscle tone. It often affects one hand initially, progressing to one side of the body, then the other side, and finally the neck and trunk. Rigidity become more pronounced as the condition progresses and it also increases with anxiety and concentration. If the facial muscles are affected the individual develops a mask-like, fixed expression with staring eyes; to the lay person, this may be the most striking symptom of Parkinsons Disease. In addition, handwriting may become very small and tremulous.

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