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.
Give Yourself Time To Adjust
Over time, youll likely become an expert in Parkinsons disease but right now, youre a newbie. Give yourself time for the diagnosis and all it might mean to sink in. Then, get educated: Ask your doctor for information you can take home and read, find other people with Parkinsons in your community or online to talk to, and browse sites like the National Parkinson Foundation and the Michael J. Fox Foundation for Parkinson’s Research.
Diagnosis And Management Of Parkinsons Disease
There are no diagnostic tests for Parkinsons. X-rays, scans and blood tests may be used to rule out other conditions. For this reason, getting a diagnosis of Parkinsons may take some time.
No two people with Parkinsons disease will have exactly the same symptoms or treatment. Your doctor or neurologist can help you decide which treatments to use.
People can manage their Parkinsons disease symptoms through:
- seeing a Doctor who specialises in Parkinsons
- medication
- multidisciplinary therapy provided for example, by nurses, allied health professionals and counsellors
- deep brain stimulation surgery .
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What Doctors Don’t Tell You
Yes, current Parkinsons Disease treatments help the first round of Parkinsons Disease symptoms.
But they eventually “stop working,” and here’s why!
Even your neurologist may not have told you…
That the Parkinsons Disease medication eventually will cause you to have moreshaking and stiffness.
Researchers discovered that many Parkinsons symptoms are NOT actually Parkinson disease symptoms, but rather, the sideeffects of the medications used as Parkinsons Disease treatments: Levodopa, L-dopa, or Sinemet.
- Thats right, the eventual jerky SHAKING, or “dyskinesia,” is a drug side effect, often mistaken for later Parkinsons stages.
Dyskinesia describes jerky “involuntary” movements, stiffness, and difficult “voluntary” movements.
- It then seems as if theParkinsons medications are “no longer doing the job” and the disease is getting worse. But this is likely not the case.
Consider that the meds have not just stopped working, or are “wearing off,” which they in effect do.
- But rather, that the Parkinson Disease medication actually causes additional psychomotor and autonomic complications.
- It turns out that the by-products of the Parkinson disease treatments in turn cause problems.
People who are older, or sick and move less, fail to eliminate the by-products of their medications. This causes a toxic build up so that new symptoms appear, including involuntary shaking!
- And yes, these effects can be prevented or lessened with natural supplements!
Medications For People With Parkinsons Disease
Symptoms of Parkinsons disease result from the progressive degeneration of nerve cells in the brain and other organs such as the gut, which produce a neurotransmitter called dopamine. This causes a deficiency in the availability of dopamine, which is necessary for smooth and controlled movements. Medication therapy focuses on maximising the availability of dopamine in the brain. Medication regimes are individually tailored to your specific need. Parkinsons medications fit into one of the following broad categories:
- levodopa dopamine replacement therapy
- dopamine agonists mimic the action of dopamine
- COMT inhibitors used along with levodopa. This medication blocks an enzyme known as COMT to prevent levodopa breaking down in the intestine, allowing more of it to reach the brain
- anticholinergics block the effect of another brain chemical to rebalance its levels with dopamine
- amantadine has anticholinergic properties and improves dopamine transmission
- MAO type B inhibitors prevent the metabolism of dopamine within the brain.
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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
Support For People With Parkinsons Disease
Early access to a multidisciplinary support team is important. These teams may include doctors, physiotherapists, occupational therapists, speech therapists, dietitians, social workers and specialist nurses. Members of the team assess the person with Parkinsons disease and identify potential difficulties and possible solutions.There are a limited number of multidisciplinary teams in Victoria that specialise in Parkinsons disease management. But generalist teams are becoming more aware of how to help people with Parkinsons disease.
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So What Do We Know So Far
Location of the substantia nigra. FrozenManCC BY-SA 4.0
The substantia nigra is an area of the mid brain located at the top of the spinal cord, which has been the focus of much work into how Parkinsons affects the brain.
There are a right and a left substantia nigra, and often one side is affected before the other. Because of this, people with Parkinsons often experience symptoms primarily on one side of their body, particularly in the early stages. Indeed, this common feature of the condition often helps to distinguish Parkinsons from other similar conditions.
When it comes to confirming a diagnosis, it is the substantia nigra where pathologists look for changes at the end of life in brain tissue that has been donated to research. And the loss of the dopamine-producing cells in this area of the brain, accompanied by the presence of clumps of alpha-synuclein protein , has been the hallmark of Parkinsons for decades.
You can read more about the alpha-synuclein protein, and how it plays a role in the spread of Parkinsons, in a previous blog post:
Surgery For People With Parkinsons Disease
Deep brain stimulation surgery is an option to treat Parkinsons disease symptoms, but it is not suitable for everyone. There are strict criteria and guidelines on who can be a candidate for surgery, and this is something that only your doctor and you can decide. Surgery may be considered early or late in the progression of Parkinsons. When performing deep-brain stimulation surgery, the surgeon places an electrode in the part of the brain most effected by Parkinsons disease. Electrical impulses are introduced to the brain, which has the effect of normalising the brains electrical activity reducing the symptoms of Parkinsons disease. The electrical impulse is introduced using a pacemaker-like device called a stimulator. Thalamotomy and pallidotomy are operations where the surgeon makes an incision on part of the brain. These surgeries aim to alleviate some forms of tremor or unusual movement, but they are rarely performed now.
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Two Areas In Which Parkinsons Disease May Bring About Death
I. Falls
PD patients are at an increased risk of falling and bad falls can lead to death. This usually occurs as a complication of a fall that requires hospitalization, particularly if it involves surgery. While most people do not fracture their hips when they fall, some do, and hip surgery, while routine, is still major surgery. It carries the risk of infection, delirium related to pain medications and anesthesia, heart failure, pneumonia, blood clots in the legs that then go to the lungs, and general weakness from immobility. Hip fractures are probably the main cause for death for those who fall, but people can fracture other bones and require surgery. They may fracture their ribs, which leads to reduced coughing, because of the pain, and an increased risk of lung infections . It is surprisingly uncommon for Parkinsons Disease patients to die from brain injuries related to falls, but it still may occur.
II. Pneumonia
PD patients also may develop pneumonias completely unrelated to difficulties with swallowing, just like their non-PD friends and relatives.
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.
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What Makes Pd Hard To Predict
Parkinsonâs comes with two main buckets of possible symptoms. One affects your ability to move and leads to motor issues like tremors and rigid muscles. The other bucket has non-motor symptoms, like pain, loss of smell, and dementia.
You may not get all the symptoms. And you canât predict how bad theyâll be, or how fast theyâll get worse. One person may have slight tremors but severe dementia. Another might have major tremors but no issues with thinking or memory. And someone else may have severe symptoms all around.
On top of that, the drugs that treat Parkinsonâs work better for some people than others. All that adds up to a disease thatâs very hard to predict.
Is Parkinsons Disease Inherited
Scientists have discovered gene mutations that are associated with Parkinsons disease.
There is some belief that some cases of early-onset Parkinsons disease disease starting before age 50 may be inherited. Scientists identified a gene mutation in people with Parkinsons disease whose brains contain Lewy bodies, which are clumps of the protein alpha-synuclein. Scientists are trying to understand the function of this protein and its relationship to genetic mutations that are sometimes seen in Parkinsons disease and in people with a type of dementia called Lewy body dementia.
Several other gene mutations have been found to play a role in Parkinsons disease. Mutations in these genes cause abnormal cell functioning, which affects the nerve cells ability to release dopamine and causes nerve cell death. Researchers are still trying to discover what causes these genes to mutate in order to understand how gene mutations influence the development of Parkinsons disease.
Scientists think that about 10% to 15% of persons with Parkinsons disease may have a genetic mutation that predisposes them to development of the disease. There are also environmental factors involved that are not fully understood.
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What Is Parkinson’s Disease
Parkinsons disease occurs when brain cells that make dopamine, a chemical that coordinates movement, stop working or die. Because PD can cause tremor, slowness, stiffness, and walking and balance problems, it is called a movement disorder. But constipation, depression, memory problems and other non-movement symptoms also can be part of Parkinsons. PD is a lifelong and progressive disease, which means that symptoms slowly worsen over time.
The experience of living with Parkinson’s over the course of a lifetime is unique to each person. As symptoms and progression vary from person to person, neither you nor your doctor can predict which symptoms you will get, when you will get them or how severe they will be. Even though broad paths of similarity are observed among individuals with PD as the disease progresses, there is no guarantee you will experience what you see in others.
Parkinsons affects nearly 1 million people in the United States and more than 6 million people worldwide.
For an in-depth guide to navigating Parkinsons disease and living well as the disease progresses, check out our Parkinsons 360 toolkit.
What Is Parkinson’s Disease?
Dr. Rachel Dolhun, a movement disorder specialist and vice president of medical communications at The Michael J. Fox Foundation, breaks down the basics of Parkinson’s.
Can Parkinsons Disease Be Prevented
Unfortunately, no. Parkinsons disease is long-term disease that worsens over time. Although there is no way to prevent or cure the disease , medications may significantly relieve your symptoms. In some patients especially those with later-stage disease, surgery to improve symptoms may be an option.
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The Nervous System & Dopamine
To understand Parkinson’s, it is helpful to understand how neurons work and how PD affects the brain .
Nerve cells, or neurons, are responsible for sending and receiving nerve impulses or messages between the body and the brain. Try to picture electrical wiring in your home. An electrical circuit is made up of numerous wires connected in such a way that when a light switch is turned on, a light bulb will beam. Similarly, a neuron that is excited will transmit its energy to neurons that are next to it.
Neurons have a cell body with branching arms, called dendrites, which act like antennae and pick up messages. Axons carry messages away from the cell body. Impulses travel from neuron to neuron, from the axon of one cell to the dendrites of another, by crossing over a tiny gap between the two nerve cells called a synapse. Chemical messengers called neurotransmitters allow the electrical impulse to cross the gap.
Neurons talk to each other in the following manner :
How Will My Doctor Test For It
There’s no one test for Parkinson’s. A lot of it’s based on your symptoms and health history, but it could take some time to figure it out. Part of the process is ruling out other conditions that look like Parkinson’s. The docotor may do a DaT scan, which looks for dopamine in the brain. This can aid in a diagnosis.
Because there is no single test, it’s very important to go to a doctor who knows a lot about it, early on. It’s easy to miss.
If you do have it, your doctor might use what’s called the Hoehn and Yahr scale to tell you what stage of the disease you’re in. It ranks how severe your symptoms are from 1 to 5, where 5 is the most serious.
The stage can help you get a better feel for where your symptoms fall and what to expect as the disease gets worse. But keep in mind, some people could take up to 20 years to move from mild to more serious symptoms. For others, the change is much faster.
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When To Seek Hospice Care
When you or your loved one have a life expectancy of six months or less, you become eligible for hospice care a type of comfort care provided at the end of life for someone living with end-stage Parkinsons disease. Hospice provides extra support so your loved one can live as comfortably as possible.
If you have experienced a significant decline in your ability to move, speak, or participate in activities of daily living without caregiver assistance, its time to speak with a hospice professional.
Read more: What is hospice care?
Some of the things that determine whether your loved one with end-stage Parkinsons is eligible for hospice include: difficulty breathing, bed bound, unintelligible speech, inability to eat or drink sufficiently, and/or complications including pneumonia or sepsis.
If you live in South Jersey, our nurse care coordinator can answer your questions and decide if your loved one is ready for hospice care. Call us 24/7 at 229-8183.
What Is Parkinsons Disease Symptoms Causes Diagnosis Treatment And Prevention
The causes and symptoms of Parkinsons disease can vary from person to person. While there is no cure, there are medications and treatments to help manage the condition.
Parkinsons disease is a movement disorder that happens when nerve cells in a certain part of the brain are no longer making the chemical dopamine.
The condition is also sometimes known as paralysis agitans or shaking palsy.
The Parkinsons Foundation estimates that 60,000 Americans are diagnosed with Parkinsons every year. However, the true number of people who develop the disease may be much higher.
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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.