Neuroscience

Alzheimers and Parkinsons Diseases

The disorder of Alzheimer's is a gradual condition that causes brain cells to waste away (degenerate).The most common cause of dementia is Alzheimer's disease. A Continuous deterioration in thought, behavioural and social skills that disrupts the ability of an individual to work independently. There is no therapy that prevents Alzheimer's disease in the brain or improves the mechanism of the disease. Complications from serious loss of brain activity such as dehydration, malnutrition or infection result in death in advanced phases of the disease.

Parkinson's disease is a chronic neurological disorder, a movement disorder, and the illness progresses over time. In Parkinson's disease, the cells responsible for dopamine secretion begin to die. Dopamine is responsible for the proper functioning of the body's muscles. The cells of the substantia nigra, a part of the brain, secrete dopamine. Symptoms of Parkinson's disease, including voice change, slurry voice, tremor, sluggish movements, anosmia, difficulty balancing, Stiffness of arms, legs and trunks, alteration of facial expression and loss of sense of smell.These symptoms are caused by a reduction in dopamine levels that leads to irregular brain activity.The mechanism that contributes to low dopamine levels is not apparent. But there are several variables, perhaps genetic variables and environmental causes, that lead to Parkinson's disease. A dopamine transporter test scan can be used since there is no clear test to diagnose Parkinson's disease.

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