Science News

Inject, Cool Tech and Keto Effect

Parkinson's Foundation Science News blogs

All Science News articles summarize a research study and are not an official opinion, endorsement or position of the Parkinson’s Foundation.

Every year, the Movement Disorder Society (MDS) hosts an international congress where the top minds in the field share ideas and the latest in research. The 2018 congress took place this October in Hong Kong, China, where we found three particularly promising new Parkinson’s disease (PD) studies that not only provide hope and direction for the future, but also a new avenue you may want to explore with your healthcare provider, right now.

Inject

People tend to think of Parkinson’s as an overall body movement disorder. However, it’s not uncommon for PD to negatively impact the facial muscles, mouth, throat and even vocal cords — which can make it difficult to chew, eat, swallow, and speak with audible volume. A medical procedure where a collagen gel is injected directly into the vocal chords may help. Called vocal fold augmentation, the gel filler (specifically, carboxymethylcellulose) provides a thicker, more resilient cushion for the vocal cords. This is not a new procedure being tested, it’s a treatment that has been used for many years to treat vocal cord atrophy, just not in people with PD.

Inspired by a patient who told his otolaryngologist that he wished something could just be injected in his throat, a clinical trial began using the injected gel in 29 people with PD. Researchers measured results in: overall severity, roughness, breathiness, strain, pitch and loudness. They also measured glottis closure timing (essential in airway protection, so food won’t go down the wrong pipe), and supraglottic constrictions, which involves throat constriction above the vocal chords.

In the one-month follow-up, statistically significant improvements were achieved in overall severity, breathiness, loudness and glottic closure time. People’s eating and swallowing ability remained the same. According to the study authors, the positive effects of the gel will wear off in about three months; thereby, providing proof that the injection worked. If that is indeed the case, their next step involves injecting a calcium hydroxyapatite paste, which the researchers suggest could last up to 18 months – at which time, patients may receive another injection.

Learn More

The Parkinson’s Foundation believes in empowering the Parkinson’s community through education. Learn more about speech, swallowing now or by calling our free Helpline at 1-800-4PD-INFO (473-4636).

Cool Tech

Innovations in personal, portable technology to improve Parkinson’s care, health outcomes and overall management for diseases such as diabetes, epilepsy and asthma, have become a major focus of research. And now, researchers may have identified a technology to help people with certain aspects of PD. Called a Parkinson's Kinetigraph (PKG), this wearable device contains an accelerometer that measures and records information on motor patterns, impulsiveness, periods of sleep and medication response. In a recent study involving 70 people with PD, doctors were asked to provide what their management plan for each person would be, before and after receiving the PKG results.

The clinical findings and the PKG were essentially the same for 80% of participants. However, utilizing the additional PKG data resulted in 24 of the PD participants (34%) receiving changes in their clinical management, including altering their medication dosing, as well as recommending advanced therapies such as apomorphine or deep brain stimulation. For two participants, based on their poor response to therapy recorded by the PKG, their Parkinson's diagnosis was questioned. As to whether or not these PKG-inspired clinical management changes will lead to longer-term improvements in people’s health outcomes and/or quality of life has yet to be determined. However, if it does, this technology could be life-changing.

Learn More

Learn more about wearable technology by visiting Assistive Technology & Devices.

Keto Effect

We all know that following a healthy diet is essential for overall health. But which diet is best for people with Parkinson’s? A recent pilot study sought to compare a low fat, high carbohydrate diet (which is thought to increase dopamine levels in the brain), with the high fat, low carbohydrate ketogenic diet (or ‘keto’ as it’s usually referred) — which may help with diminished mitochondrial energy metabolism. A total of 47 study participants with PD were randomly assigned to follow one of the two diets over an eight-week period. The total calories were identical, as was the total protein content — because protein interferes with levodopa absorption.

Overall, following both diets resulted in improvements in movement and non-movement symptoms. However, the group following the keto diet experienced a greater improvement in non-motor symptoms, as compared to the low fat/high carb diet (41% vs 11%, respectively), including experiencing less urinary problems, pain, fatigue, daytime sleepiness and cognitive impairment. This is particularly significant because non-motor symptoms are less responsive to the medication levodopa. In terms of adverse effects, the most common for those following the low fat/high carb diet was being hungry; and for the keto diet, some experienced a transient increase in PD tremor/rigidity. Both groups also lost weight. Bear in mind that this trial was only 2-months long and there was also no control, or normal diet for comparison. Nonetheless, these study findings suggesting the keto diet may be useful for non-motor symptoms are encouraging.

Learn More

The Parkinson’s Foundation believes in empowering the Parkinson’s community through education. Learn more by reading Diet & Nutrition or listening to our podcast episode: The Importance of Good Nutrition for People with Parkinson’s.

Have specific questions about nutrition and diet? Call our free Helpline at 1-800-4PD-INFO (473-4636).

Raise Awareness

How to Spot the Early Signs of Parkinson's

Lady got dizzy and fell on her living room floor and holding her forehead

It can be hard to tell if you or a loved one has Parkinson's disease (PD).

The next time you visit family, we want to make sure you can spot the early signs of Parkinson's. With early detection, treatment and expert care, many people live longer, productive lives with Parkinson’s.  In addition to tremors, there are other early signs you can observe.

Infographic with 10 early signs of Parkinson's disease: tremor, trouble walking, loss of smell, trouble sleeping, small handwriting, soft voice, constipation, masked face, stooped posture and dizziness

No single one of these signs means that you should worry, but if you have more than one sign you should consider making an appointment to talk to your doctor.

Visit Parkinson.org/10signs to learn more

Tips for Daily Living

DIY: Living Better with Parkinson's

couple hugging outside

Managing and living with Parkinson’s disease (PD) is a challenge. Every member of the Parkinson’s Foundation People with Parkinson's Advisory Council (PPAC) knows this first-hand and set out to help the PD community by launching a series of articles where people can share the ways they modify and use every-day items to help manage PD symptoms.

Do It Yourself (DIY): Living Better with Parkinson’s will regularly highlight the creative, PD-tailored, DIY ways people with Parkinson’s and care partners make daily tasks easier.

The views and opinions expressed in this blog, along with listed products, are those of the authors and are not endorsed or reflect the official policy or position of the Parkinson’s Foundation.

Below we list the tools people have created themselves or purchased to live better with PD:

If it is difficult to hold a pen or pencil, go to a home improvement store and buy foam pipe wrap (used to insulate pipes). The tube splits open and the pencil fits inside.

- Mary, PPAC member

If you need help falling asleep, try listening to a boring book or meditation app, like Calm. It offers daily sleep stories ― the best so far is “Once upon a GDPR,” where Peter Jefferson reads a law document for 34 minutes.

- Gretchen, PPAC member

My Fitbit is very helpful in monitoring my activity level and in reminding me to take my meds. I sometimes feel like I’ve walked for miles, but the Fitbit tells me I’ve barely moved all day. It is a good reality check.

- Andree, PPAC member

blue tape by a toilet

Getting into the right position to sit down safely on the toilet requires walking, turning, backing up and sitting down. We use blue tape to delineate the exact space my dad needs to stand in to sit down safely.

- Dana, PPAC member

Use voice to text apps (I use Dragon) to help with writing on the computer.

- Andree, PPAC member

Use the alarm on your cell phone to set your daily medication alarms.

- Richard

jogging with a jogging stroller

I use a jogging baby stroller with big wheels when I’m walking on the gravel roads by our home. I weighted it with a gym bag and it has really helped my walking. I can walk two miles using this stroller and I’m not so exhausted afterwards.

-Karen and Rob, PPAC member

For toe dystonia you can find toe separators in all shapes and materials. They help straighten and relax my toes. These separators aren’t made specifically for people with Parkinson’s, but are very helpful. In a pinch, I twist up a handkerchief and wind it between my toes.

- Gretchen, PPAC member

The U-Step 2 walker with a laser light that comes on with switch helps with freezing. It is pricey, but with Medicare it cost $70. It also has a metronome to help give rhythm for help with walking. It doesn’t handle steps or gravel well but has a seat with storage.

- Rob

For constipation, try the Squatty Potty. It really works! It elevates the feet when on the toilet, which straightens out the colon and makes it much easier to go. You can also multi-task at the same time and polish your toenails.

- Smitty

I found a cup with a storage area for pills inside. It is a handy way to take my medication on-the-go.

- Trudy

Get a handicapped placard for your car. I used to think I didn’t really need it. But I have found the less energy I have to expend at the beginning of running an errand the more I have in reserve at the end.

- Andree, PPAC member

Place a 1/2 foam roller flat on the bed. Lying on it releases the spine and makes it more flexible. It’s also good for colon therapy.

- Jean

My worst time of day is morning. I put blue masking tape on the floor to help me with my walking, especially those first steps in the morning.

- Eduardo

I use hot packs on my eyes in dry climates, which have really helped my dry eyes.

- Sandy

It was very hard to get my walking shoes on until I discovered sneakers that zipper in the back. They are much easier to get on and off, although the zipper can be tricky. I use Flyease by Nike.

- Orlando

To keep his muscles strong, my husband uses the eTrainer-ER Mini. It exercises your arms and legs and can be used from a chair.

- Susan

For more information and tips for daily living visit Parkinson.org/Blog or call our Helpline at 1-800-4PD-INFO (1-800-473-4636).

Advancing Research

Tips from the Pros: Maintaining Cognitive Brain Health in Parkinson's Disease

brain

Maintaining cognitive brain health is a high priority for both people with Parkinson’s disease (PD) and family members. Though many living with Parkinson’s will not develop dementia, mild cognitive issues may emerge in 20 to 50 percent. As a result of this survey, a working group of experts led by Jennifer Goldman, MD, MS, at Rush University, a Parkinson’s Foundation Center of Excellence, was assembled to address this issue. In this month’s What’s Hot in PD? column, we share practical results from the working group that may be useful for both people with PD and their families.

There are potential pharmacological and non-pharmacological interventions that may be useful in addressing cognition (thinking and memory) in PD. The working group divided the recommendations for maintaining PD cognitive health into early and more advanced Parkinson’s.

Early Parkinson’s Disease

  • Exercise according to guidelines from American College of Sports Medicine and American Heart Association 
  • Stay active socially; for example, spend time with friends or join a support group.
  • Engage in cognitive training exercises.
  • Learn coping strategies; for example, work with an occupational therapist or neuropsychologist on techniques for paying attention, remembering things or doing everyday tasks.
  • Nutrition can affect cognition. Consider trying the Mediterranean diet.
  • Take your time when doing tasks.
  • Let your family and friends know if you are having trouble.

Seek help if feeling depressed or anxious 

Advanced Parkinson’s Disease

Follow the above recommendations, in addition to: 

  • Develop and follow a highly structured daily routine 
  • Consider the use of medication for cognitive impairment; common medications include cholinesterase inhibitors and memantine
  • Have an advanced directive in place (living will, treatments) 
  • For care partners: take care of your own health as well (see doctors as needed) 

For care partners: seek out support such as counseling 

Though more pharmacological treatments are needed, we advise people not to underestimate the value of implementing many of these techniques and considerations. You can have a happy life with PD but you need a winning strategy for brain health and cognition — and that strategy may not always include a pill.

Science News

Coffee and Parkinson's: Protection in the Making?

Parkinson's Foundation Science News blogs

All Science News articles summarize a research study and are not an official opinion, endorsement or position of the Parkinson’s Foundation’s.

For years, drinking coffee has been associated with having a reduced risk of developing Parkinson's disease (PD). In fact, a 1968 study suggested that coffee drinkers were less like to get PD (Nefzger, Quadfasel, & Karl, 1968). Since then, multiple epidemiologic studies have confirmed the PD/coffee connection (Ascherio et al., 2003; Ascherio et al., 2004; Fujimaki et al., 2018). Researchers have mostly attributed the protective effect to the caffeine component (Lee et al., 2013).

However, coffee is more than a caffeine delivery system. Coffee has more than 1,000 different compounds, including organic acids, sugars, amino acids and fatty acids. One such fatty acid called Eicosanoyl-5-hydroxytryptamide (EHT) has been getting quite a bit of buzz in the PD research community; and, for good reason. A recently published study titled, “Synergistic neuroprotection by coffee components eicosanoyl-5-hydroxytryptamide and caffeine in models of Parkinson’s disease and DLB” (Yan et al., 2018), provides some compelling insights into the possible biochemical protective mechanisms of our cup of joe.

A recently published study in the journal, Neuropsychopharmacology, sought to determine if having ADHD and/or its treatment, increases the risk of having basal ganglia and cerebellar diseases. In this 20-year follow-up retrospective cohort study, a total of 190,586 patient records (31,796 with ADHD and 158,790 without ADHD) from Utah were examined. People with no prior PD diagnosis or symptoms, no basal ganglia/cerebellar disease and those with a history of substance abuse were excluded from participating in the study.

Here’s what the researchers did: over a six-month period, they treated groups of two different PD model mice with various combinations of caffeine and EHT (caffeine alone, EHT alone, or caffeine and EHT together) to study their effects on both brain and behavior. There was also a group of mice that received no treatment. Then they performed several behavioral tests to study their movement, as well as study their brains for signs of alpha-synuclein clumps (which result in Lewy bodies, the pathological hallmark of PD), neurodegeneration and inflammation. The study found that the untreated mice had significant amounts of clumped α-synuclein in their brains, increased inflammation and loss of neurons, as well as significant deficits on three different behavioral tests. In general, the mice treated with EHT or caffeine alone showed either no or minimal improvement in any of these measures. However, the mice treated with the combination of EHT and caffeine together showed significant improvements in all of these measures.

Results

  • More specifically, mice treated with both EHT and caffeine together:
  • Had less alpha-synuclein clumping in the brain
  • Maintained better neuron integrity and function
  • Had less brain inflammation
  • Displayed less movement symptoms

What Does This Mean?

In this study, a synergistic combination of EHT and caffeine was shown to slow down the progression of the neurodegeneration associated with PD in mice — which has potentially readily available therapeutic implications. In addition, previous research has demonstrated that caffeine enhances dopamine signaling in the brain (Volkow et al., 2015); and, it’s the death of dopamine-producing cells that results in movement symptoms of PD (and why dopamine replacement medication is the gold standard treating PD symptoms).

For years, coffee consumption has been suggested to play a protective role in developing PD. However, it was never clear what exactly in coffee had this effect. This study suggests that two compounds, caffeine and the fatty acid EHT, work together to protect against alpha- synuclein clumps and dopamine neuron loss in two different PD models of mice. Interestingly, these effects were seen even using very low doses of the compounds. If the results of this study can be replicated by other researchers, then identifying that delicate balance of safety and effectiveness for humans is likely an essential step that researchers will be investigating in the future.

Learn More

The Parkinson’s Foundation believes in empowering the Parkinson’s community through education. Learn more about the connection between dopamine, caffeine, Lewy bodies and alpha-synuclein and Parkinson’s in the below Parkinson’s Foundation resources or by calling our free Helpline at 1-800-4PD-INFO (473-4636).

Raise Awareness

An Illustrated Introduction to Your Brain

Brain scan

During Brain Awareness Week, taking place March 11 to 17, we join the global campaign to raise awareness about the progress and benefits of brain research, including research into the causes of Parkinson's disease (PD) and how to treat it.

Since Parkinson’s affects multiple parts of the brain, we wanted to provide you with an easy-to-understand introduction to the amazing things your brain does and how.

Infographic about brain awareness

Ready to exercise your brain?

Check out Tips for Daily Living: 12 Ways to Boost Your Brain Power.

Tips for Daily Living

Non-motor Symptoms: What’s New? Part 1

Man struggling to read

Parkinson’s disease (PD) is largely known for its motor symptoms, slow movement, tremor and stiffness, but other wide-ranging challenges, known as non-motor or non-movement symptoms — can often be most problematic. Treating these non-motor symptoms promotes optimal living.

The following article is part one of a two-part series based on a Parkinson’s Foundation Expert Briefings webinar exploring the latest research and treatments in PD-related non-motor symptoms, by Ronald Pfeiffer, MD, Oregon Health and Sciences University, a Parkinson’s Foundation Center of Excellence.

Early Parkinson’s Symptoms

Early signs of Parkinson’s can appear before a Parkinson’s diagnosis is ever made. Non-movement symptoms can begin decades before a diagnosis. Impaired sense of smell occurs in 70 to 90 percent of those living with PD, often precedes other PD symptoms. Licorice, coconut and banana are some smells people with PD have difficulty with, while scents like chocolate, strawberry and onion, are not impacted.

Another common early pre-movement symptom, constipation, can begin around age 40, sometimes preceding a PD diagnosis by 20 years. Erectile dysfunction, REM sleep behavior disorder, depression and anxiety are often also early non-motor PD symptoms. 

Vision Changes

About 14 percent of people with PD experience vision changes including tired eyes, blurred vision, intermittent double vision or difficulties reading and seeing in dim lighting. Optometrists who look closely may discover convergence insufficiency, impaired color perception, blinking irregularities or reduced contrast sensitivity (the capacity to pick out an object from its background). Playing video games may improve contrast sensitivity, but no PD-specific studies have been done. Fitting glasses with prisms can help PD-related double vision. Both blepharospasm (involuntary eye closure) or apraxia of lid opening (inability to open the eye) may benefit from botulinum toxin A (BOTOX®). At-home eye exercises called “pencil push-ups” may help with convergence insufficiency. Talk to your doctor or optometrist about how to perform these exercises, or to discuss vision treatments.

Pain

Pain related to PD is divided into five categories:

  1. Musculoskeletal: pain that affects the bones, muscles, ligaments, tendons and nerves. It can occur suddenly and be short-lived or long lasting and can occur in one or several areas. Someone with PD may describe this as aching or burning in their muscles or skeleton.
  2. Neuropathic/radicular: chronic pain condition where the body sends pain signals to the brain, not caused by an injury. This sharp pain comes from a nerve or nerve root.
  3. Dystonic: sustained or repetitive muscle twisting, spasm or cramp that can occur at different times of day and in different stages of Parkinson’s. Can stem from rigidity and dystonia.
  4. Akathisia: causes the feeling of restlessness or inability to be still. An example of this outside of Parkinson’s is Restless Leg Syndrome.
  5. Central pain: neurological condition caused by a dysfunction that affects the central nervous system and is resistant to treatment. This pain is usually sharp and burning with no clear cause.

Though muscle relaxers are not usually effective, adjusting PD medications may help minimize “wearing off" episodes. Physical therapy or surgery can improve pinched nerve pain, while BOTOX® injections may improve dystonia.

Autonomic Dysfunctions

Non-motor problems include those with the autonomic nervous system, which controls bodily functions, such as heart rate, blood pressure, sweating, sexual function and both gastrointestinal and urinary function. These can be among the most serious problems for people with PD.

Oral Health Issues

Excess saliva: Experienced by up to 80 percent of people with Parkinson’s, it begins as nocturnal drooling and can progress to heavy saliva outpourings. Drooling isn’t caused by excess saliva; in PD it is due to decreased swallowing frequency and efficiency, as well as tendencies toward an open mouth and stooped posture. While surgery was used in treatment in the past, it is no longer advocated. Hard candy, medications, including sublingual atropine or glycopyrrolate, or BOTOX® injections have all been used in treatment. Discuss options with your doctor.

Dry mouth: Decreased saliva production in PD can cause dry mouth; medications can increase this dryness, raising the risks of cavities and periodontal disease. Artificial saliva products like Biotene®, which contains xylitol and glycerin, can help. Discuss treatments, including medications that increase saliva production, with your doctor or dentist.

Halitosis: Bad breath is common in PD, but rarely discussed. Many factors — dry mouth, inadequate brushing, gum disease, mouth bacteria and not drinking enough fluids — can contribute. Treatment includes adequate cleaning of teeth and mouth and alleviating dry mouth.

Recognizing and Addressing Symptoms

Non-motor PD features may also include sleep disorders, cognitive changes, hallucinations and delusions or weight changes. It’s important to stay abreast of all symptoms, and to discuss treatments with your doctor.

Read the second article in this series now: Non-motor Symptoms: What’s New? Part 2.

Parkinson's Foundation Helpline

Contact our Helpline at 1-800-4PD-INFO (1-800-473-4636) or Helpline@Parkinson.org for answers to your Parkinson’s questions. Helpline specialists can assist you in English or Spanish, Monday through Friday, 9 a.m. to 7 p.m. ET.

Tips for Daily Living

What Can I Do to Improve My Speech and Communication?

Doctor and patient holding hangs

About 75 percent of people with Parkinson’s disease (PD) experience changes in speech and voice. These changes usually come on gradually and can vary from mild to severe. In the newest Parkinson’s Foundation educational book, Speech and Swallowing, we cover the symptoms, tools and exercises that can help you or a loved one better understand and manage speech, swallowing, voice, communication and cognitive problems in PD.

In addition to seeing a speech-language pathologist, there are some strategies that you, your family and your friends can use to improve communication.

About 75% of people with Parkinson’s experience changes in speech and voice.

Practice good “voice hygiene” with these tips:  

  • Drink plenty of water or other liquids each day (non-caffeine and non-alcoholic).
  • Do not strain your voice by shouting over loud noise when you talk.
  • Rest your voice when it is tired. Like other muscles in your body, the muscles controlling your speech need a break sometimes.
  • Reduce throat clearing or coughing.
  • If the air is dry in your home, consider using a humidifier.

Posture

Posture is important for voice and speech. Keeping an upright posture and a straight neck (and slightly lifted chin) helps you to move air from your lungs through your vocal cords, which then vibrate to produce the sound waves that make your voice. Motor changes associated with PD (and aging) can make it more difficult to maintain an ideal posture. Exercise, stretching and yoga can help.

Keep Talking

The best way to practice talking is to talk! The saying “use it or lose it” applies to speech, too. If you don’t have a companion to talk to, talk out loud to yourself.

Singing and Voice

Singing uses the same muscles that are used for speech. Singing your favorite songs out loud is not only great exercise — it can help you feel good emotionally, too. Be careful not to strain or force your voice beyond what is comfortable.

TIP: To find a speech language pathologist or a speech-related program near you, call the Parkinson’s Foundation Helpline 1-800-4PD-INFO (473.4636).

Tips for Family and Friends

Remember a good conversation takes two (or more). Social engagement and maintaining social ties are important for both emotional and cognitive health. While there are steps that the person with PD can take, it is important that conversation partners also improve their conversation skills.

  • Have important or more challenging conversations when the person with PD is well-rested and at their ‘best’ time of day.
  • Get face-to-face. Minimize having conversations between rooms. Make sure that the lighting is optimized so that you can see your partner’s face and mouth movements clearly. 
  • Reduce background noise. Turn off the radio and TV, close car windows and shut doors to noisy areas.
  • Learn to look for signals that your conversation partner is having difficulty engaging — requests for repetition, fidgeting or being distracted.
  • Be aware that people with PD may not accurately express their emotions through facial expressions because of rigid facial muscles.
  • Be patient. Allow ample time for the person with PD to communicate.
  • Minimize talking ‘for’ the person with PD or filling in their responses unless they ask you to do so.
  • Provide help and repeat or rephrase what you said (without elevating your volume or excessively slowing your speech rate).

Read our newest book Speech and Swallowing online now or order your free copy today.

Science News

Simple Blood Draw Reveals Early Inflammation/Fatigue Connection

Parkinson's Foundation Science News blogs

First described as a common symptom of Parkinson’s disease (PD) more than 20 years ago, PD-related fatigue remains an under-recognized, clinically significant, disabling symptom that can diminish quality of life (Herlofson et al., 2018; Kluger et al., 2016). Often occurring prior to movement symptoms of PD — tremor, rigidity and bradykinesia — (Chong, Albor, Wakade, & Morgan, 2018), PD-related fatigue doesn’t go away over time and getting more rest does not help (APDA, 2017).

The 2014 Parkinson’s Foundation Conference on Fatigue found that half of all people with PD reported fatigue as a major problem, and one-third shared that fatigue is their single most disabling symptom. The conference brought together a multidisciplinary group of experts, including a scientist studying fatigue in breast cancer. Research in breast cancer has shown that inflammation plays a large role in fatigue, even years after treatment when patients are in remission. One of the questions that came out of the 2014 conference was whether inflammation also plays a role in fatigue in PD.

Recently published in the journal, Acta Neurologica Scandinavica, a study titled, “Inflammation and fatigue in early, untreated Parkinson’s” (Herlofson et al., 2018) sought to explore the possible association of proinflammatory cytokines (a type of substance released by a cell that promotes inflammation) and fatigue in PD. Considered the boss of the immune system, cytokines are chemical messengers responsible for up-regulating (initiating), as well as down-regulating (turning off) the immune response. Studies have found that proinflammatory cytokines may play a role in PD and have been proposed to be part of an immune response to tissue damage (Williams-Gray et al., 2016)

Scientist looking at microscope

Funded by the Parkinson’s Foundation, Karen Herlofson, MD, led a study measuring 13 different inflammatory markers and adhesion molecules (helps cells stick to one another), obtained with a simple blood-draw in people with PD who had also been assessed for fatigue levels.

The study recruited 212 participants who were newly diagnosed with PD and untreated. They were initially recruited from the Norwegian ParkWest Project — a population-based prospective longitudinal cohort study of newly diagnosed, untreated people with PD. However, after excluding those with decreased cognitive function, symptoms of depressionexcessive daytime sleepinessapathy, other diseases or relevant medications, a total of 47 participated in this study; 24 had low fatigue scores and 23 had high fatigue scores.

Demographic data (age, years of education, weight, and height) were collected during a semi-structured interview. Disease severity was assessed by the Unified Parkinson’s Disease rating Scale part III (UPDRS III). Fatigue was assessed by the Fatigue Severity Scale (FSS), a self-administered questionnaire, which focuses upon the physical social, and mental aspects of fatigue. All 47 participants had their blood drawn the same day as the clinical assessment and all fasted the night before. The blood draw occurred between 8 and 10 a.m., to minimize confounding factors caused by circadian rhythm.

Results

Compared to the study participants without fatigue, participants with fatigue:

  • Had significantly higher levels of the cytokine IL1-Ra and the adhesion molecule VCAM-1
  • Had more advanced disease, as measured by the Unified Parkinson’s Disease Rating Scale (UPDRS) motor score.
  • Had lower cognitive function, as measured by the MMSE (Mini-Mental State Examination).
  • Had more depression, as measured by the Montgomery-Åsberg Depression Rating Scale (MADRS).
  • Had less excessive daytime sleepiness, as measured by the Epworth Sleepiness Scale (ESS), showed no correlations between IL1-Ra or VCAM-1 with age, sex, years of education, BMI, UPDRS, MADRS, MMSE, apathy, or ESS.

What Does This Mean?

PD-associated fatigue can have a detrimental impact on quality of life; yet, the underlying biological cause remains unknown. This study found that having higher blood levels of the inflammatory markers IL1-Ra and VCAM-1 were associated with higher fatigue levels in newly diagnosed, untreated participants with PD. If true, and an altered immune response is indeed a factor, this finding may offer new targets to explore for future treatment — as the immune system is a promising therapeutic target for disease modification.

Additionally, these findings may, if correct, offer some future early PD diagnostic potential — as fatigue commonly presents before the classic hallmark symptoms of PD. We know that inflammation contributes to neurodegeneration in the brain. Whether or not cytokines are increased as a result of the stress and tissue damage that are a consequence of PD — or whether the inflammation happens prior to the fatigue — is a question that must be answered. This study brings us one step closer

Learn More

The Parkinson’s Foundation believes in empowering the Parkinson’s community through education. Learn more about the connection between fatigue and Parkinson’s in the below Parkinson’s Foundation resources or by calling our free Helpline at 1-800-4PD-INFO (473-4636).

Tips for Daily Living

Keeping the Mind Mentally Active

Grandfather and son reading a newspaper together

Just as exercise keeps your body strong, mental activity keeps the mind sharp and agile. Challenging the brain and continuous learning not only keeps the mind healthy, but they also impact our entire physical well-being. New dendrites (the connections between nerve ells that allow cells to communicate with each other) are produced throughout your entire life. These new connections help you store and retrieve information more easily.

At any age the brain continues to absorb information, make new connections, acquire new skills and enhance memory. Mental decline is NOT a part of normal aging and there are ways you can train your brain. 

Tips for maintaining a healthy mind:

  • Stay physically active to reduce the risk of Alzheimer's stroke and osteoporosis.
  • Exercise every day for 30 minutes to improve blood flow to the brain.
  • Seek positive social interaction by staying involved with friends and family. Social interaction is key to keeping the mind sharp.
  • Get Involved. It gets you out of the house and involved with others.
  • Reduce stress. Normal aging can make the mind less efficient, but don't stress about it.
  • Exercise and challenge your mind daily with puzzles games and mental exercises.
  • Practice good nutrition and a balanced diet with fruits, vegetables, breads and cereals which contain folic acid, Vitamin B12 and thiamine to keep the memory healthy.
  • Drink water. Water is an essential part of humans and needed for good memory. Lack of water leads to dehydration. Choose water over soda as it can lead to dehydration and fatigue.
  • Try to have a a positive attitude, which leads to more focus, increased memory and alertness.
  • Vary your activity to keep the mind strong and healthy. Creativity in everyday life provides excellent mental stimulation.

To learn more about cognition and memory, download our free educational book "Cognition: A Mind Guide to Parkinson’s Disease."

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