Parkinson’s Disease | Neurodegenerative Diseases

Neurology

Parkinson’s Disease

A team of specialists at the UC Davis Parkinson’s Disease Multidisciplinary Clinic provides high-level, compassionate care. We work as a collaborative team to help you navigate this complex condition and live your best life.

Medically reviewed by Norika Malhado-Chang, M.D. on May 09, 2024.

Female health care provider holding the hand of older man with Parkinson’s disease as both are smiling.

What Is Parkinson’s Disease?

Parkinson’s disease is a movement disorder that causes tremors, balance problems, muscle stiffness and slowed movements. This neurodegenerative disease damages nerve cells in your brain that control coordination and muscle movements.

Parkinson’s disease symptoms get worse over time. However, advanced treatments and services can slow disease progression, improving your quality of life.

You receive this specialized care and more at the region’s first Parkinson’s Multidisciplinary Center of Excellence. We’re also home to the region’s first Parkinson’s Foundation Center of Excellence, part of the UC Davis Center for Movement Disorders and Neurorestoration.  

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Parkinson’s Disease Symptoms

Parkinson’s disease affects everyone differently. Initially, mild symptoms may only affect one side of your body. As the disease progresses, symptoms can affect both sides. Mobility and daily activities often become more challenging.

Common Symptoms 

Signs of Parkinson’s disease include: 

  • Balance and coordination problems 
  • Difficulty using your hands and fingers (impaired dexterity) 
  • Hand and leg tremors 
  • Limb stiffness  
  • Slowed movements and walking  
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Parkinson’s Disease Causes and Risk Factors

Parkinson’s disease occurs when proteins build up in nerve cells in your brain. These proteins damage or destroy the nerve cells that control movement.

Some people inherit a specific gene change (mutation) that leads to Parkinson’s disease. As many as 1 in 4 people with Parkinson’s disease have a relative with the disease.

Several factors may increase your risk of developing Parkinson’s disease.

Age

Advanced age is the main risk factor for many neurodegenerative diseases, including Parkinson’s disease. Signs of the disease typically occur around age 60.

Biological Sex

Males are 1.5 times more likely to get Parkinson’s disease than females.

Toxins

Exposure to certain pesticides or toxins may increase your risk.

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Diagnosing Parkinson’s Disease

Diagnosing Parkinson’s disease can be challenging. Other movement disorders share similar symptoms. Diagnosis relies on careful evaluation not only of your symptoms but of your body as a whole. As a Parkinson’s Foundation Center of Excellence, our team has the clinical expertise to provide an accurate diagnosis.

Parkinson’s is a clinical diagnosis based on a detailed interview and neurologic examination. In certain cases, it may be necessary to do additional testing, such as:

  • Drug challenge test: Your provider checks to see if your symptoms get better after taking a dopamine replacement medication (levodopa). Symptom improvement may indicate Parkinson’s disease.
  • Neuroimaging: Medical imaging tests, such as a brain MRI, can rule out other conditions.
  • Skin Biopsy: A Syn-One Test® detects abnormal proteins in the skin that may indicate Parkinson’s disease.
  • Dopamine transporter scan (DaTscan): This nuclear imaging test uses a safe radioactive substance to view the brain’s dopamine system.
  • Genetic testing: This specialized blood test checks for specific gene changes (mutations) that cause Parkinson’s disease in a small number of people.

Parkinson’s Disease Treatments

Our nationally recognized Parkinson’s Multidisciplinary Clinic brings together all the specialists and therapies you need in one convenient location. We develop a customized treatment plan for your unique symptoms and needs.

Medications

Medications can ease symptoms by acting on neurotransmitters (brain chemicals) like dopamine.

Physical, Occupational and Speech Therapy

Neurophysical therapy helps with walking, balance and overall mobility. Occupational therapy helps with finger dexterity, daily tasks and use of assistive devices. Speech therapy works on voice, speech clarity and swallowing.

Explore physical medicine and rehabilitation
Deep Brain Stimulation (DBS)

DBS uses surgically implanted electrodes to send mild electrical currents to areas of the brain. The treatment can improve tremors, muscle stiffness, slowed movements and overall mobility.

Learn more about our Deep Brain Stimulation Program
Clinical Trials

Our movement disorder specialists are active in the latest research and clinical trials. You may be able to try promising new therapies still in development.

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Preventing Parkinson’s Disease

Exercise is the single best thing you can do to lower your risk of developing Parkinson’s disease. There’s also evidence that minimizing your exposure to pesticides and toxins helps.

“Parkinson’s disease,” National Institute of Neurological Disorders and Stroke, https://www.ninds.nih.gov/health-information/disorders/parkinsons-disease

“Ageing as a risk factor for neurological diseases,” Nature Reviews Neurology, https://pubmed.ncbi.nlm.nih.gov/31501588/

“Parkinson’s disease,” MedlinePlus, https://medlineplus.gov/parkinsonsdisease.html

“Statistics: Who has Parkinson’s?” Parkinson’s Foundation, https://www.parkinson.org/understanding-parkinsons/statistics

There are about

1MAmericans who have Parkinson’s disease

Statistics show

90KAmericans are diagnosed each year

Source: Parkinson’s Foundation: Statistics: Who has Parkinson’s?

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