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Nervous Disorders | Knowledge Facts

Nervous Disorders

Following are the some common disorders of nervous system system in humans.

Nervous disorders

Parkinson's Disease

It is the nervous disorder,characterized by involuntary  tremors,diminished motor power and rigidity.The metal  faculties are not affected.The disease is believed  to be caused by cell death in brain area that produces dopamine.Onset disease is usually 50's and 60's.The disease is slowly progressive;the patient may live for many years.Th disease may result by head trauma.Effective drugs are available such as L-dopa.A naturally occuring protein  called glial cell-line derived. Neurotrophic factor has been shown to boost uptake of dopamine,when delivered to  lab,rats and monkeys. Neurotrophic factor may be used near in future for humans in the treatment of disease.

Epilepsy

 It is one of the convulsive disorders of nerves which are characterized by abrupt transient symptoms of motor,sensory,psychic or autonomic nature,frequently associated with changes in consciousness. These changes are believed to be secondary  to sudden transient alterations  in brain function associated with excessive rapid electric discharges in the gray matter.The onset epilepsy is usually before age 30.Later age onset suggest organic disease.In some patients,emotional disturbances play an important  trigger role. Electroencephalography is the most important test in study of epilepsy. Anticonvulsant drugs are used.Alcohol aggravates epilepsy,so persons  suffering from epilepsy should avoid alcohol.

Alzheimer's disease

This disease was first described by Alois Alzheimer in 1907.It is characterized by the decline in brain function.Its symptoms are similar to those diseases that cause dementia(Memory loss).There is pre-disposition to the disease in some people, so it tends to run in families.There is also evidence that high levels  of aluminium may contribute to the onset of this disease.There is also decline in brain function with age.
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