parkinson’s disease is a common, a progressive, neurodegenerative, movement disorder that belongs to the group of motor system disorders.
It results from the slow death of neuron cells which create a chemical called dopamine, in a part of the brain, called the substantia nigra.Dopamine helps control muscle movement throughout the body.
parkinson’s disease,The Cause of the disease is still not well known, so it is coming under idiopathic disorders.
-Some atypical cases are genetic in origin
-As a normal aging process
-Increased risk is there in persons exposed to certain pesticides, Toxins and a reduced risk in tobacco smokers.
The accumulation of a protein called alpha-synuclein into the inclusions called Lewy Bodies, in neurons, and lead to insufficient production of Dopamine in Midbrain.
Slowness of all voluntary movements, mainly for walking or rolling over in bed.
Decreased facial expression, monotonous speech, and decreased eye blinking.
A shuffling gait with poor arm swing and stooped posture.
Unsteady balance; difficulty rising from a sitting position.
Continuous “pill-rolling” motion of the thumb and forefinger.
Abnormal tone or stiffness in the trunk and extremities.
Swallowing problems in later stages.
The Common Motor Symptoms in The Developed Stage.
Tremor- is the most apparent, common and well-known symptom. Mostly present when the limb is at rest and disappearing with voluntary movement and sleep. It begins in the hands and arms, although it can also occur in the jaw or foot. In Beginning it usually only affects one side of the body or one limb.
Bradykinesia- is the slowing down of movement and the gradual loss of spontaneous activity. Initial symptoms start while
performing daily tasks which require fine motor control such as writing, sewing or getting dressed
Muscle rigidity- As muscle tone is more, there is stiffness and resistance to the movements, leading to rigidity. There is inability for the muscles to relax normally. There will be aches or pains from affected muscles
Postural Instability- The impaired movements and balance, lead to frequent falls . The number of falls being related to the severity of PD
Changes in walking (Gait)- there is an inability to swing the arms naturally while walking and taking short shuffling steps. There may be also difficulty in starting to walk and difficulty in stopping also.
Stooped Posture, Forward or backward lean that can cause falls, Drooling, Difficulty swallowing and chewing, Urinary problems, Sexual dysfunction, Constipation And Loss of other motor skills can be seen in some patients.
Dementia, Depression, Psychosis and Anxiety are also seen
-Modern Treatments use Levodopa (L-Dopa) and Dopamine agonists to control the early motor symptoms.
As the disease progresses and dopaminergic neurons continue to be lost. And the drugs eventually become ineffective at treating the symptoms and at the same time produce a complications like involuntary writhing movements.
– Diet and some forms of rehabilitation help in alleviating the symptoms.
– Surgery and Deep Brain Stimulation to help the reduce the symptoms.