What Is Parkinson’s Disease Its A Movement Disorder
Parkinson’s disease is a progressive brain illness that affects the way you move. In more clinical terms, Parkinsons disease is a neurodegenerative disorder of the central nervous system.
Normally, there are cells in the brain that produce a chemical called dopamine. Dopamine sends signals to the parts of your brain that control movement. When approximately 60-80% of the dopamine-producing brain cells are damaged, symptoms of Parkinson’s disease appear, and you may have trouble moving the way you want.
Parkinson’s disease is a chronic illness and it slowly progresses over time. While there is no therapy or medicine that cures Parkinsons disease, there are good treatment options available that can help you live a full life.
Causes Of Parkinson’s Disease
Parkinson’s disease is caused by a loss of nerve cells in part of the brain called the substantia nigra. This leads to a reduction in a chemical called dopamine in the brain.
Dopamine plays a vital role in regulating the movement of the body. A reduction in dopamine is responsible for many of the symptoms of Parkinson’s disease.
Exactly what causes the loss of nerve cells is unclear. Most experts think that a combination of genetic and environmental factors is responsible.
Reduced Sense Of Smell
If youre having trouble smelling pungent foods or can no longer pick up your favourite scents, it could have many causes. Its not the most common symptom of Parkinsons, but Dr. Hall says patients who suffer a loss of smell sometimes report it as being the earliest sign they experienced. The link between reduced sense of smell and Parkinsons isnt clear, but one theory is that the clumps of the protein alpha-synuclein, found in the brains of all Parkinsons patients, may form in the part of the brain responsible for smell before migrating to other areas and affecting motor function.
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Primary Motor Symptoms Of Parkinson’s
The primary motor symptoms of PD are the symptoms that are the key characteristics of the disease. They are:
- Tremor a shaking of the hands, arms, or legs, especially when the limb is at rest it often initially occurs only in one arm or leg, and it may even begin as a small tremor in one finger
- Rigidity an abnormal stiffness in a limb or part of the body
- Postural instability impaired balance or difficulty standing or walking
- Bradykinesia gradual loss and slowing down of spontaneous movement1,2
What You Can Do
As of 2021, there is no definite cure for Parkinsons disease. There is also no definite known cause. Its likely due to a combination of an individuals susceptibility and environmental factors. Most cases of Parkinsons disease happen without a genetic link.
According to research published in 2012, only report having a family member with the disease. Many toxins are suspected and have been studied, but no single substance can be reliably linked to Parkinsons.
However, research is ongoing. Its estimated that
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What Are The Symptoms Of Parkinson’s Disease
The main symptoms of Parkinson’s disease are:
- tremor or shaking, often when resting or tired. It usually begins in one arm or hand
- muscle rigidity or stiffness, which can limit movement and may be painful
- slowing of movement, which may lead to periods of freezing and small shuffling steps
- stooped posture and balance problems
The symptoms of Parkinson’s disease vary from person to person as well as over time. Some people also experience:
- loss of unconscious movements, such as blinking and smiling
- difficulties with handwriting
- drop in blood pressure leading to dizziness
- difficulty swallowing
- sweating
Many of the symptoms of Parkinson’s disease could be caused by other conditions. For example, stooped posture could be caused by osteoporosis. But if you are worried by your symptoms, it is a good idea to see your doctor.
Medicines For Parkinson’s Disease
Medicines prescribed for Parkinson’s include:
- Drugs that increase the level of dopamine in the brain
- Drugs that affect other brain chemicals in the body
- Drugs that help control nonmotor symptoms
The main therapy for Parkinson’s is levodopa, also called L-dopa. Nerve cells use levodopa to make dopamine to replenish the brain’s dwindling supply. Usually, people take levodopa along with another medication called carbidopa. Carbidopa prevents or reduces some of the side effects of levodopa therapysuch as nausea, vomiting, low blood pressure, and restlessnessand reduces the amount of levodopa needed to improve symptoms.
People with Parkinson’s should never stop taking levodopa without telling their doctor. Suddenly stopping the drug may have serious side effects, such as being unable to move or having difficulty breathing.
Other medicines used to treat Parkinsons symptoms include:
- Dopamine agonists to mimic the role of dopamine in the brain
- MAO-B inhibitors to slow down an enzyme that breaks down dopamine in the brain
- COMT inhibitors to help break down dopamine
- Amantadine, an old antiviral drug, to reduce involuntary movements
- Anticholinergic drugs to reduce tremors and muscle rigidity
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What Are The Surgical Treatments For Parkinsons Disease
Most patients with Parkinsons disease can maintain a good quality of life with medications. However, as the disease worsens, medications may no longer be effective in some patients. In these patients, the effectiveness of medications becomes unpredictable reducing symptoms during on periods and no longer controlling symptoms during off periods, which usually occur when the medication is wearing off and just before the next dose is to be taken. Sometimes these variations can be managed with changes in medications. However, sometimes they cant. Based on the type and severity of your symptoms, the failure of adjustments in your medications, the decline in your quality of life and your overall health, your doctor may discuss some of the available surgical options.
Theories About What Causes Parkinsons
The cause of Parkinsons disease is still unknown, although there is some evidence for the role of genetics, environmental factors, or a combination of both. It is also possible that there may be more than one cause of the disease. Scientists generally believe that both genetics and environment interact to cause Parkinsons disease in most people who have it.
Currently, there is an enormous amount of research directed at producing more answers about what causes Parkinsons disease and how it might be prevented or cured. When physicians diagnose Parkinsons, they often describe it as idiopathic . This simply means that the cause of the disease is not known.
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What Are The Stages Of Parkinsons
Neurologists often use a system of stages, called the Hoehn and Yahr scale, to describe the progression of symptoms. These stages are:
- Stage 1 Symptoms are seen on one side of the body only.
- Stage 2 Symptoms are seen on both sides of the body. There’s no impairment of balance.
- Stage 3 Balance impairment has begun. In this mild to moderate stage of the disease, the person is still physically independent.
- Stage 4 This stage is marked by severe disability, but the person is still able to walk or stand unassisted.
- Stage 5 The person is wheelchair-bound or bedridden unless assisted.
Cognitive And Psychiatric Symptoms
- depression and anxiety
- mild cognitive impairment slight memory problems and problems with activities that require planning and organisation
- dementia a group of symptoms, including more severe memory problems, personality changes, seeing things that are not there and believing things that are not true
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General Approach To Management
The primary goal in the management of PD is to treat the symptomatic motor and nonmotor features of the disorder, with the objective of improving the patients overall quality of life. Appropriate management requires an initial evaluation and diagnosis by a multidisciplinary team consisting of neurologists, primary care practitioners, nurses, physical therapists, social workers, and pharmacists., It is also important that the patient and his or her family have input into management decisions.
Effective management should include a combination of nonpharmacological and pharmacological strategies to maximize clinical outcomes. To date, therapies that slow the progression of PD or provide a neuroprotective effect have not been identified., Current research has focused on identifying biomarkers that may be useful in the diagnosis of early disease and on developing future disease-modifying interventions.,
Understanding Dopamine And Parkinsons Disease
- Dopamine is a specialized chemical messenger responsible for sending signals in the brain to coordinate movement.
- In Parkinsons disease, the cells responsible for making dopamine die off, causing movement problems and other symptoms.
- Dopaminergic treatments are available to increase levels of dopamine in the brain and alleviate symptoms.
Parkinsons disease is caused by low levels of dopamine and improper signaling in the brain, which leads to movement symptoms. Parkinsonism is a set of movement disorders characterized by tremors, muscle stiffness, coordination issues, and bradykinesia . Parkinsons disease is one of the most common movement disorders that affect the central nervous system.
Parkinsons is treated with dopaminergic treatments. Over time, these medications may cause side effects like dyskinesia that can interfere with daily life.
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What Are The Different Stages Of Parkinsons Disease
Each person with Parkinsons disease experiences symptoms in in their own unique way. Not everyone experiences all symptoms of Parkinsons disease. You may not experience symptoms in the same order as others. Some people may have mild symptoms others may have intense symptoms. How quickly symptoms worsen also varies from individual to individual and is difficult to impossible to predict at the outset.
In general, the disease progresses from early stage to mid-stage to mid-late-stage to advanced stage. This is what typically occurs during each of these stages:
Early stage
Early symptoms of Parkinsons disease are usually mild and typically occur slowly and do not interfere with daily activities. Sometimes early symptoms are not easy to detect or you may think early symptoms are simply normal signs of aging. You may have fatigue or a general sense of uneasiness. You may feel a slight tremor or have difficulty standing.
Often, a family member or friend notices some of the subtle signs before you do. They may notice things like body stiffness or lack of normal movement slow or small handwriting, lack of expression in your face, or difficulty getting out of a chair.
Mid stage
Mid-late stage
Standing and walking are becoming more difficult and may require assistance with a walker. You may need full time help to continue to live at home.
Advanced stage
Managing Depression In Parkinsons Disease
People with Parkinsons, family members and caregivers may not always recognize the signs of depression and anxiety. If you are experiencing depression as a symptom of Parkinsons, it is important to know it can be treated.
Here are some suggestions:
- For information and support on living well with Parkinsons disease, contact our Information and Referral line.
- As much as possible, remain socially engaged and physically active. Resist the urge to isolate yourself.
- You may want to consult a psychologist and there are medications that help relieve depression in people with Parkinsons, including nortriptyline and citalopram .
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Common Symptoms Of Parkinsons Disease
Parkinsons is mostly known for its movement-related symptoms . Everyone with Parkinsons has the first symptom, bradykinesia. The term literally means slowness of movement. Researchers believe that this is due to changes in the motor areas of the brain . These changes interfere with the brains ability to execute the commands to move.
Experiencing bradykinesia alone does not result in a diagnosis of Parkinsons disease. The patient must also exhibit at least one of the following movement symptoms:
- Postural instability
- Rigidity
- Tremor
Of the three, tremor is the most common and most commonly associated with the condition. It presents as a slight shaking in the hand or chin. Rigidity is when the patient experiences stiffness in the arms or legs that is not caused by arthritis. Finally, postural instability simply means that the patient has issues with balance or is prone to falling.
Other movement symptoms include:
- Insomnia, excessive daytime sleepiness, restless legs syndrome, vivid dreams, and other sleep disorders
- Losing sense of taste or smell
- Mood disorders such as anxiety, depression, and apathy
Some non-movement symptoms do not become apparent until a patient has had PD for many years.
When Does A Tremor Go Away With Parkinsons
The typical Parkinsons tremor occurs mostly at rest and lessens during sleep and when the body part is actively in use. For example, your hand might shake while youre sitting, or even while youre walking, but when you reach out to shake hands with someone, the tremor is less noticeable or goes away entirely.
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Trouble Moving Or Walking
Do you feel stiff in your body, arms or legs? Have others noticed that your arms dont swing like they used to when you walk? Sometimes stiffness goes away as you move. If it does not, it can be a sign of Parkinson’s disease. An early sign might be stiffness or pain in your shoulder or hips. People sometimes say their feet seem stuck to the floor.
What is normal?If you have injured your arm or shoulder, you may not be able to use it as well until it is healed, or another illness like arthritis might cause the same symptom.
Parkinson’s Disease Symptoms Everyone Should Know
Parkinsons disease symptoms can include tremor and trouble with movement, along with emotional and cognitive changes.
Parkinson’s disease symptoms can vary significantly from person to person. Some people may have range of motor symptoms, like tremor, stiffness, and slow movements. Others may also experience the non-motor symptoms of Parkinson’s disease, such as anxiety, cognitive changes, and loss of smell.
It has to do with a chemical messenger known as dopamine, which plays a role in the brain’s ability to control movement, coordination, and emotional responses. In Parkinson’s disease, the brain cells that produce dopamine either stop doing their job or they die out, resulting in both motor and non-motor symptoms. It’s not always easy to tell if someone you care about has Parkinson’s disease. Let’s take a closer look at the symptoms of the disease and signs that someone should make an appointment with their doctor.
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Dopaminergic Treatments And Their Side Effects
The overall goal of Parkinsons disease treatment is to alleviate the symptoms as much as possible with as few side effects as possible. No medication is perfect, but treatment should improve quality of life, and the benefits should outweigh the risks. Dyskinesia usually occurs when taking levodopa, but it can also occur with dopamine agonists, MAOIs, and COMT inhibitors.
Causes Of Parkinsons Disease
At present, we do not know the cause of Parkinsons disease. In most people there is no family history of Parkinsons Researchers worldwide are investigating possible causes, including:
- environmental triggers, pesticides, toxins, chemicals
- genetic factors
- combinations of environment and genetic factors
- head trauma.
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Sidebar: Ninds Steps Up Pursuit Of Pd Biomarkers
In 2012, the NINDS dramatically accelerated efforts to identify biomarkers by establishing the Parkinsons Disease Biomarkers Program . This unprecedented program unites a range of stakeholders from basic and clinical researchers to healthcare professionals, the NINDS staff, information technology experts, and people living with PD and their families.
PDBP supports research and builds resources aimed at accelerating the discovery of biomarkers to ultimately slow the progression of PD. For example, the program has established a repository of biological specimens and a Data Management Resource system maintained by the NIH Center for Information Technology. The DMR allows researchers to access clinical, imaging, genetic, and biologic data, while a complementary PDBP-supported project develops statistical tools to analyze vast quantities of data so that patterns can be identified across these diverse sources of information.
Stooping Or Hunching Over
Are you not standing up as straight as you used to? If you or your family or friends notice that you seem to be stooping, leaning or slouching when you stand, it could be a sign of Parkinson’s disease .
What is normal?If you have pain from an injury or if you are sick, it might cause you to stand crookedly. Also, a problem with your bones can make you hunch over.
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Prescription Medications To Treat Parkinsons
Most movement symptoms are due to a lack of dopamine. Therefore, drugs prescribed to treat PD are dopaminergic they either replenish dopamine or mimic its effects on the brain. The most common is called levodopa. The body converts this medication into dopamine to help control movement symptoms.
Make sure your doctor knows all medications you take including over-the-counter and supplements. This helps reduce the risk of drug interactions, a common issue for Parkinsons patients.
Symptoms Of Parkinsons Disease
Parkinson’s disease has four main symptoms:
- Tremor in hands, arms, legs, jaw, or head
- Stiffness of the limbs and trunk
- Slowness of movement
- Impaired balance and coordination, sometimes leading to falls
Other symptoms may include depression and other emotional changes difficulty swallowing, chewing, and speaking urinary problems or constipation skin problems and sleep disruptions.
Symptoms of Parkinsons and the rate of progression differ among individuals. Sometimes people dismiss early symptoms of Parkinson’s as the effects of normal aging. In most cases, there are no medical tests to definitively detect the disease, so it can be difficult to diagnose accurately.
Early symptoms of Parkinson’s disease are subtle and occur gradually. For example, affected people may feel mild tremors or have difficulty getting out of a chair. They may notice that they speak too softly, or that their handwriting is slow and looks cramped or small. Friends or family members may be the first to notice changes in someone with early Parkinson’s. They may see that the person’s face lacks expression and animation, or that the person does not move an arm or leg normally.
People with Parkinson’s often develop a parkinsonian gait that includes a tendency to lean forward, small quick steps as if hurrying forward, and reduced swinging of the arms. They also may have trouble initiating or continuing movement.
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