WELCOME TO OUR PARKINSON'S PLACE!

I HAVE PARKINSON'S DISEASES AND THOUGHT IT WOULD BE NICE TO HAVE A PLACE WHERE THE CONTENTS OF UPDATED NEWS IS FOUND IN ONE PLACE. THAT IS WHY I BEGAN THIS BLOG.

I COPY NEWS ARTICLES PERTAINING TO RESEARCH, NEWS AND INFORMATION FOR PARKINSON'S DISEASE, DEMENTIA, THE BRAIN, DEPRESSION AND PARKINSON'S WITH DYSTONIA. I ALSO POST ABOUT FUNDRAISING FOR PARKINSON'S DISEASE AND EVENTS. I TRY TO BE UP-TO-DATE AS POSSIBLE.

I AM NOT RESPONSIBLE FOR IT'S CONTENTS. I AM JUST A COPIER OF INFORMATION SEARCHED ON THE COMPUTER. PLEASE UNDERSTAND THE COPIES ARE JUST THAT, COPIES AND AT TIMES, I AM UNABLE TO ENLARGE THE WORDING OR KEEP IT UNIFORMED AS I WISH. IT IS IMPORTANT TO UNDERSTAND I AM A PERSON WITH PARKINSON'S DISEASE. I HAVE NO MEDICAL EDUCATION,

I JUST WANT TO SHARE WITH YOU WHAT I READ ON THE INTERNET. IT IS UP TO YOU TO DECIDE WHETHER TO READ IT AND TALK IT OVER WITH YOUR DOCTOR. I AM JUST THE COPIER OF DOCUMENTS FROM THE COMPUTER. I DO NOT HAVE PROOF OF FACT OR FICTION OF THE ARTICLE. I ALSO TRY TO PLACE A LINK AT THE BOTTOM OF EACH ARTICLE TO SHOW WHERE I RECEIVED THE INFORMATION SO THAT YOU MAY WANT TO VISIT THEIR SITE.

THIS IS FOR YOU TO READ AND TO ALWAYS KEEP AN OPEN MIND.

PLEASE DISCUSS THIS WITH YOUR DOCTOR, SHOULD YOU HAVE ANY QUESTIONS, OR CONCERNS. NEVER DO ANYTHING WITHOUT TALKING TO YOUR DOCTOR FIRST..

I DO NOT MAKE ANY MONEY FROM THIS WEBSITE. I VOLUNTEER MY TIME TO HELP ALL OF US TO BE INFORMED.

I WILL NOT ACCEPT ANY ADVERTISEMENT OR HEALING POWERS, HEALING FROM HERBS AND ETC. UNLESS IT HAS GONE THROUGH TRIALS AND APPROVED BY FDA. IT WILL GO INTO SPAM.

THIS IS A FREE SITE FOR ALL WITH NO ADVERTISEMENTS

THANK YOU FOR VISITING! TOGETHER WE CAN MAKE A DIFFERENCE!

TRANSLATE

Tuesday, November 24, 2015

A caregiver's story: Living and loving through the slow process of dying


Sunday November 22, 2015
Harry Deitz
Reading Eagle - The nights were long, but sleep came in minutes rather than hours. The darkness wasn't enough of a blindfold, and the accompanying quiet was momentary and bathed heavily with the tension of anticipation, waiting for the piercing call of my name, over and over.
"Harry, Harry, Harry ..."
The cycle repeated every hour, and sometimes more frequently. It grew louder and more intense, until at last the brief rest was over, again, and I stumbled to answer a pressing and very real need.
There is no break for a primary caregiver in a family, whether by necessity or by choice. Unless you've been there, you will never understand.
For six years, I had the privilege of caring for my ailing wife, Mary Ellen, including almost 20 intense months before she died in September. It was an honor, but one that came with a heavy price. Don't most honors?
I wouldn't have traded a minute of that time with her because we were together. Yet, there were many times that, because of the impact, I wondered if she might outlast me.
If you are a primary family caregiver, you can relate. If you are not, you should know what could lie ahead for you or another family member.
We always were private people who would never think about sharing these things. I've had trouble understanding why all of this happened, and I came to the conclusion that perhaps some of it needs to be shared so we can help others who are going through similar challenges in their lives and feel isolated, overwhelmed and forgotten.
This is my story, my experience, my tribute to her. I'm proud to have lived through it, but not nearly as I am sad that it is finally over.
The background
The ravages of dementia are not something you can be prepared to handle. No matter how much you read or what advice you are given, the pain you watch your loved one experience and the unintended hurt that sometimes is cast on you are overwhelming burdens.
There is no magic wand that can fix it. There is no way to escape it.
For my wife and me, this difficult and unfortunate journey began six years ago. I noticed that her movement, especially when she walked, had become rigid, and she held her one arm high along her side. My first concern was that she had suffered a stroke. That might have been better.
Looking back, there were other signs. At times she would become uncharacteristically disagreeable and impatient, especially with me. She had occasional dreams where she would scream in the middle of the night.
We soon learned that she was in the early stages of Parkinson's disease. She was 57. At the same time, she was diagnosed with diabetes. At that point, in 2009, she was able to function on her own, although I started to see signs of confusion in her. We decided to get a second opinion and went to Johns Hopkins University Hospital in Baltimore, where doctors confirmed she had Parkinson's.
With those changes in her life, she also was being treated for anxiety and depression. In 2011, we started to see a local neuropsychiatrist who had been on staff at Johns Hopkins. His assessment was that she had Lewy body dementia. We soon would learn the differences and the similarities of PD and LBD, but clarifying that diagnosis was of little help, because the bad news didn't end there.
Routine bloodwork indicated possible liver problems. That led to a diagnosis of cirrhosis, which was shocking because she rarely ever drank even a glass of wine and didn't have hepatitis. It was attributed to nonalcoholic fatty liver disease. We also learned she had esophageal varices, a related condition that had to be monitored for excessive bleeding.
The next blow came in 2012, when she was diagnosed with breast cancer. If that had occurred years earlier, she might have had a complete breakdown. With everything else that she had been through, she handled that news and related surgeries more calmly than I ever could have imagined.
The worst was yet to come.
In addition to dementia, the liver disease caused hepatic encephalopathy, which results in confusion. These diseases were hitting her from all sides.
When our children were young and would tell us something wasn't fair, like many parents we would tell them, "Life's not fair." There was no better example than what my wife went through.
For me, it was overwhelming to understand and coordinate treatment involving 10 doctors, as many as 20 medications at one time and insurance coverage. The impact of it all was much worse on her.
Change and isolation
We had raised our family in a two-story house on 2 acres in the country, which made dealing with her medical issues more difficult. She no longer could drive, so I was driving to and from work to take her to numerous doctor appointments and for tests. I worried about how quickly I could get home if she had a problem.
Late in 2010, I made a decision that we needed to move to a house that had less property to care for, was closer to my office and the hospital, and had a first-floor bedroom and bath in preparation for when she no longer could use the steps. I wanted to move while she still was able to participate in finding a new place and making it our home.
It was a difficult time for her, and as her confusion increased during the next few years, she continually asked when we were going home. The move was, however, one of the smartest decisions I made for both of us.
The downside was that we no longer were in the community where we had spent more than 30 years. She had co-founded a preschool in Leesport and taught there for 23 years before the Parkinson's diagnosis. We had been active in our church, Scouting programs and community groups.
As she became less able to get around on her own, we became more isolated. Taking care of her and doing my job at the newspaper left little time for anything else.
We no longer heard from people we had known for years. Eventually, with the changes in her, I took some comfort in knowing that others didn't see what was happening to her. She had been smart, friendly, gentle and giving. As the dementia progressed, she became confused, withdrawn, angry and blunt. Still, it was hard not to feel abandoned.
During the final two years, aside from family members, the only visitors were several church friends and her best friend and partner in the preschool. When I needed help the most, it was family that supported and sustained me through calls, cards, visits and assistance. They still do. They are there when I need them, which is often.
The need to work
Early on, Mary Ellen was afraid she would end up in a nursing home. She begged me not to let that happen. While her mind still was clear, I promised her I would keep her at home and take care of her as long as it was physically possible. Despite many challenges, I was able to keep that promise.
At first, I needed to continue working to provide health care for her. After she had qualified for Medicare disability coverage, I considered staying home full-time and taking care of her. It would have given us more time together, but the quality of that time was declining rapidly. After much soul-searching and seeking advice from professionals and others who had similar experiences, I decided it was important to have my job as a brief diversion from the constant care and worry about her. Even though she never was out of my thoughts, my job required constant focus and attention to details, which provided an alternative perspective on what was happening in my life.
I also knew that eventually I would lose her, and the thought of not having her or a job to fill the emptiness scared me. One of the things that helped me to keep my mind clear was writing my weekly newspaper column.
As her primary caretaker and advocate, I had to coordinate all the appointments, diagnoses and medication. So I started to keep a written record of medical issues and significant changes in her condition. Eventually that evolved into a daily journal, not only about what was happening with Mary Ellen, but also what I was feeling.
For more than 41 years she not only was my wife, but also my best friend. We shared our most intimate thoughts. She was the only person I've ever really opened up to, so she knew me far better than anyone has. As her condition worsened, I saw her slipping away. She was unable to listen or give her opinion, unable to understand the things I needed to share with her, unable to encourage and comfort me.
The journal, which I started in the fall of 2011 and wrote until a month after she died, was my way of expressing many of the thoughts I would have shared with her.
Significant decline
Soon after we had moved to our new home, her confusion increased. She still was able to walk and use the steps, but that also gave her access to her medicine and the kitchen. Before we had moved, she had left the freezer door open one night and everything in it had thawed by morning. Shortly after we moved, she turned on the hot water in the bathroom sink, then walked away and forgot about it for a couple of hours.
She would take things from the refrigerator and put them into drawers or the freezer. My fear was her use of the stove, especially if no one was with her.
By this time, I already had taken over control of her medicine. In spite of that, twice she found it and took medicine on her own, resulting in increased confusion and a trip to the emergency room. I knew I couldn't leave her alone again.
I also knew I needed help.
Our youngest daughter agreed to give up her part-time job and work for us as a caretaker during the day, then I would be home at nights and on the weekends to provide care.
Mary Ellen had fallen several times, resulting in some bruises and at least one trip to the emergency room for stitches. She didn't want to use a walker or cane, but eventually it became necessary.
One day, while leaving a doctor's appointment at the hospital, she fell in the parking lot. We thought it was only a bruise, but it turned out to be a fractured tibia, which required an immobilizer. Her confusion was getting worse, and a few days later, she got out of bed by herself and fell again, this time fracturing her kneecap and breaking a window.
That was the start of a 46-day stay in the hospital and rehab center, complicated by a sepsis infection. There was a lot of agitation and incoherence during that time, including many calls from her to me in the middle of the night because of sundowning, mixing up her days and nights.
When she came home, things became worse immediately. She was trying to get up during the night, even though she was not able to walk alone safely. We got a hospital bed with rails to keep her from getting out of bed on her own. That caused more anger because she considered it a cage.
She was retaining water, so she was taking diuretics, which caused her to use the bathroom every hour or two. I was getting up with her between three and six times during the night, which meant little sleep. That, her growing anger and confusion and declining mobility were increasing the stress level for all of us. Our daughter reached a point where she no longer could physically handle Mary Ellen. I knew I needed trained help.
I hired a live-in aide through an agency because I had heard stories about people hiring in-home help privately and having security problems. Over the course of 17 months, we had nine different aides, the longest for 34 weeks. I was concerned about bringing a stranger into our home, but we were fortunate because we didn't have a bad experience with any of them, and the first and last ones, who were with us the longest, were especially patient and compassionate and blended in well with our family.
It was difficult financially, because that expense was all out-of-pocket. It gave me comfort, however, that she was well taken care of while I was at work. I had to prepare the evening meals, and I was on my own with her during the nights and the entire weekends.
The nighttime bathroom routine was getting worse, despite numerous trips to the hospital for a paracentesis because of ascites (fluid in her abdomen that had to be drained). I moved from the bedroom to the sofa in the family room near her bedroom to sleep, hoping that if she didn't see me she might not call for me as often. It didn't work.
I was having trouble ignoring her calls for help because I didn't want her to suffer. I started to keep track of the number of times I was getting up during the night. We had her on a schedule of getting up for the day at 6:30 and going to bed at 9. Most nights, she called to get up five or six times. The worst was 11. Simple math proved that meant little to no sleep.
Overwhelmed
It's amazing what the human body is capable of doing. When you love someone, you put that person's needs ahead of your own. My unresolved dilemma was, what would happen to her if I weren't here to take care of her?
For six months, my sleep was mainly in one- to two-hour segments. Somehow I managed to go to work during the week, continue to write, make decisions and keep schedules, but the lack of sleep was taking a toll on me.
Our oldest daughter lives out of state and has four children and a job, so it was hard for her to be here, but she called every day. Our other daughter and son live nearby and in the beginning were having trouble accepting what was happening to their mother and balancing their own family lives. Plus they always seemed to believe their father could handle anything and fix it. This time I couldn't.
During an appointment with Mary Ellen's neuropsychiatrist, he asked how I was doing, and I mentioned the lack of sleep. He talked about the importance of sleep cycles and warned me that at some point my brain would just shut down. A few weeks later I understood when I felt I was going to collapse in the living room. About a week later, as I crossed the street at my office, that happened again, and this time it scared me.
Something had to change.
A solution came as the result of a conversation with our aide. She suggested we get Mary Ellen up only once during the night and ignore her calls unless she seemed to be in distress. As difficult as that was, it worked for all of us. I moved back into the upstairs master bedroom and finally was able to get some sleep. The aide and I took turns getting her up one time during each night. Family members became aware of the severity of the sleep issue and stepped in to provide some breaks for me.
I felt better within a week, but nowhere near rested because I still was not sleeping soundly, anticipating her calls. At least I now felt I could function.
The pain of dementia
Dementia is a cruel disease for the victim and those around her. It hurt to see her confusion. It hurt even more to see her frustration and anger.
Early on, she would use the wrong words, for example, "car" when she meant "cup" or "the word" instead of "pants." She would pick up the television remote to try to make a phone call or her reading glasses to try to eat.
There were hallucinations. The most common one was a little boy in a red baseball hat, whom she saw before and after we moved. She talked about people who had died. At one point she was convinced she was having a baby boy.
The outbursts of anger and defiance were more difficult to handle and too personal to share.
Sometimes it was hard not to laugh when she would become angry and weakly try to kick or grab at us as we were tending to her. More than once I cried at her frustration as she lost her independence, privacy and dignity. Sometimes we cried together.
Her personality changed drastically, and the gentle, refined and loving person at times became nasty. Those were the times when I was thankful for our isolation.
Some nights she would call out, and when she didn't get an answer immediately or the response she wanted, she would threaten to call the police and 9-1-1. She would have called if I hadn't taken the phone.
One time she became very frustrated and started to scream: "Harry, Harry, Harry."
When I didn't respond immediately, she started to repeat, "help!" then "police!" then "fire!"
I waited a few minutes to see if she would calm down, then she said in a clear voice: "You'll like this one: rape! rape! rape!" When I went to her, she began to cry.
There were things she said that I feared would be burned into my memory, and I worried that those would be the things I would remember about her. Nothing came close to when she would look at me late at night and say, "I hate you." I knew she didn't mean it and that it wasn't her. If she remembered it the next morning, she would tell me how sorry she was and how much she loves me.
Since she has been gone, however, all my memories of her are good ones, the kind that make losing her hurt far more than all the anger, pain and stress I lived through.
There were some good moments, even in her final months.
During our many years together, I knew she prayed, but it always was silently. In the final year, she began to pray aloud in a conversational way that was more intimate and beautiful than any prayers I've ever heard.
In the middle of one night, she talked about each of our children and what she hoped for them in life. Another time she told me about a bright light in the shape of cross in the closet that then disappeared. She wanted me to go with her to the light.
One day, exactly eight months before she died, we were alone and talking about answers to prayers. I recorded our conversation:
"Sometimes it's just you have to listen," she said. "Do you ever do that?"
Sure, I replied.
"You haven't gotten answers, huh?"
Sometimes you have to wait and be patient. Are you patient?
"Definitely not."
Well I'm glad you're still here with me, are you?
"I'm (then she paused for 7 seconds) well, where'd he go?"
Who? Where did who go?
"He's gone."
Who?
"He called him. He didn't go. He's not ready."
Who are you talking about, honey?
"We have to go together."
We have to go where?
"Some day he'll come back and I'll be ready."
Who will come back?
"At least he doesn't have me crying all the time."
Then she stopped talking.
During the next six months, there were fewer of those conversations. There were fewer words at all.
Hospice and the end
In June, I took her for a CT scan to check on the condition of her liver and pain she was having in her back. We learned she had a compression fracture in her vertebrae. It also showed that the cancer likely had returned and had spread to her lungs. Because of all the issues she had and the limited options that came with treatment of one problem that would make another worse, several doctors and I decided not to do more testing. Even if cancer was confirmed, there weren't any good treatment options. We decided to keep her comfortable with the help of hospice.
Sixteen months ago, doctors had estimated she had 1 to 1 ½ years to live. The thought of hospice was a sudden realization that we were near the end. With the hospice nurse visiting weekly, an aide coming to help with bathing twice a week, and a social worker and spiritual counselor coming occasionally, we had more help. I learned how to administer additional medication, including morphine, and we discussed end-of-life issues.
After hospice started, as I would make appointments for later in the year I would think about what my life will be at that time. Will she still be with me? Or will I be alone?
As we headed toward fall, she was continuing to lose weight, but she seemed to stabilize, raising my hopes that there was more time than I had thought. Perhaps we would spend one more Christmas together.
In September, I went to the shore with our daughter and her family for three days for a much-needed break, while our other children stayed at the house to help care for Mary Ellen. The beach was one of her favorite places, and I thought a lot about her and our life together while I was there.
When I came home on Sept. 16, she was much weaker. She had been sleeping more than 20 hours a day. Now she was barely able to stay awake.
The next morning, she leaned forward as I was checking her oxygen level and whispered, "I love you." I thanked her and told her I love her, too. It was the last real conversation we had.
Sept. 18 was a Friday. The hospice nurse visited in the morning, and we had trouble moving Mary Ellen from the recliner to the bathroom.
The aide came and they gave her a sponge bath in bed. We discussed then that she likely would be bedridden from that point on.
Later that morning, I was at work when I got a call from a former neighbor who wanted me to drop what I was doing and join him and some others for lunch. Reluctantly, I agreed. When I arrived at the restaurant, he asked about my wife, and I told him she wasn't doing well.
Two others at the table were doctors, each of whom had lost his wife. One of them said to me that he wishes he could have just one more conversation with her. I told him that I've been losing my wife slowly for several years, and we haven't been able to have many conversations for months. By the next day, I understood what he meant.
That night, I went home and she was in bed. She had been there and sleeping all day. I sent messages to our children that she had taken a bad turn and likely would be in bed from that time on. When our son came to our house, she was semi-responsive but calm. He and I sat on the deck, ate supper and talked until a little after 8.
By 9, she was gone. She had been struggling to breathe, even with oxygen. She motioned to us and tried to talk, then fell asleep again. After three breaths separated by long pauses, she stopped breathing. Despite six long years, the end came so quickly that I wasn't prepared. I had expected another month or two.
Now, even with the constant support of my family, the emptiness in my life is beyond what I could have imagined.
What I have learned
I had struggled with the thoughts of losing my wife and best friend. We all die, but I wasn't ready for this. We had worked and looked forward to the time when we could retire and spend more time together, travel and watch our grandchildren grow up. It is all gone far too soon.
Sometimes I've thought about children who die, or young parents. Some people believe that's far more tragic and painful, but it's not. When you love someone, a loss is a loss. Every one hurts. When are we really ready for it?
I've also thought about people who die suddenly and miss the chance to say goodbye. Is that worse than watching someone you love slip from this world slowly and painfully? I actually lost her twice: first, when she no longer could share in our life together, and then when she physically left me.
It isn't in my power or ability to explain or even understand all of this. All I know is that it hurts. The emptiness is beyond words. As hard as it is to believe, there are times when I would be glad to have one more of those sleepless nights, just to be able to see her and touch her again.
Through her, I learned so much in those final years.
That even when you are overwhelmed, you can find strength to continue.
That when you feel alone and abandoned, the people who matter most will help.
That although your situation is unique, there are many others in the world who are experiencing similar challenges.
That others will see what you do and learn from it.
That when you are a caregiver, you do need to take care of yourself, but you can't be told that; you have to learn it for yourself.
That some things can't be fixed.
That every loss hurts.
That you will not be prepared for the end.
That when your caregiving journey is over, your life will have changed forever.
I often wondered: Why her? Through it all, I grew weary but never resented or regretted taking care of her. I had no doubt that if our situations were reversed she would have done everything possible to take care of me.
Her final gift to me was this story. It led me to understand the depth of my love for her, what is really important and the privilege I had to share her life and to care for her at the end.
One of the benefits of this experience is being able to share it and help others who are living through a slow process of dying. It won't make your experience easier, but it will help you to know you are not alone, even when you lose the most important person in your life.
For me, it's quiet now at all hours of the day and night at home. I walk into her room, where she no longer suffers. I tell her I love her and miss her. There is no answer. I finally have the time to rest, but now I long to hear her call out, just one more time:
"Harry, Harry, Harry ..." 
http://www.readingeagle.com/news/article/a-caregivers-story
https://nwpf.org/stay-informed/news/2015/11/a-caregivers-story-living-and-loving-through-the-slow-process-of-dying/

Male hormone testosterone cause of sex differences in parkinson's disease risk

November 18, 2015
Source:
American Physiological Society (APS)
Summary:
Men are twice as likely as women to develop Parkinson’s disease. New research suggests that testosterone enhances the susceptibility of brain cells that control movement to damage from chemical imbalances, explaining the sex differences in the occurrence of Parkinson’s.
Men are twice as likely as women to develop Parkinson's disease, a nervous system disorder characterized by tremors and difficulty moving. New research to be presented at Cardiovascular, Renal and Metabolic Diseases: Physiology and Gender suggests that the difference in risk may be due to the presence of the male sex hormone testosterone.
Parkinson's is due to the loss of dopamine neurons, cells in the region of the brain that controls movement. Oxidative stress, which is a chemical imbalance triggered by sources such as genetic mutations and exposure to environmental toxins, can harm and kill cells. Researchers at the University of North Texas Health Science Center observed in rats' dopamine neurons that testosterone exacerbated damage induced by oxidative stress, acting through a protein called cyclooxygenase 2 (COX2). Blocking the actions of COX2 blocked testosterone's effects. These data indicate that testosterone may enhance the damage and death in dopamine neurons induced by oxidative stress, explaining the sex differences in the occurrence of Parkinson's, the researchers wrote.

http://www.sciencedaily.com/releases/2015/11/151118101922.htm

Monday, November 23, 2015

First-of-kind dopamine measurements in human brain reveal insights into how we learn




PUBLIC RELEASE: 
Ball-and-stick model of the dopamine molecule, a neurotransmitter that affects the brain's reward and pleasure centers. Credit: Jynto/Wikipedia


Virginia Tech Carilion Research Institute scientists measure dopamine signals in Parkinson's patients

VIRGINIA TECHVirginia Tech Carilion Research Institute scientists have reported measurements of dopamine release with unprecedented temporal precision in the brains of people with Parkinson's disease. The measurements, collected during brain surgery as the conscious patients played an investment game, demonstrate how rapid dopamine release encodes information crucial for human choice. 
The findings may have widespread implications not just for Parkinson's disease, but for other neurological and psychiatric disorders as well, including depression and addiction. 
The researchers detected changes in the levels of dopamine a thousand times faster than had previously been recorded in humans. These rapid measurements, combined with enhanced chemical specificity, led the scientists to discover that dopamine - a crucial neurotransmitter involved in learning and decision-making - has a far more complex role than formerly thought. 
The study was published today in the Proceedings of the National Academy of Sciences
"More than 20 years of research in nonhuman model organisms has painted a very specific picture of the suspected role of dopamine in guiding human behavior," said Read Montague, director of the Human Neuroimaging Laboratory at the Virginia Tech Carilion Research Institute and senior author of the paper. "And now, with these first-of-their-kind measurements, made directly in humans, we've discovered that this picture was woefully incomplete."
Montague and his team worked neurosurgeons at Wake Forest University Health Sciences - Stephen Tatter, Adrian Laxton, and the late Thomas Ellis - to measure dopamine signals in patients with Parkinson's disease undergoing surgery to implant deep-brain stimulation electrodes. Deep-brain stimulation has been shown to alleviate Parkinson's disease symptoms. 
Seventeen patients volunteered to allow Montague's team to record their dopamine signals during implantation surgery.
"We're studying a system that's falling apart in their brains," said Ken Kishida, first author of the paper and a research scientist at the Virginia Tech Carilion Research Institute. "Parkinson's disease is characterized by the death of dopamine-releasing neurons, and we're trying to understand the underlying mechanisms of the disease process."
Kishida and Montague both noted the generosity of the patients who volunteered for the study. 
"This type of access to measure dopamine signals is invaluable," Kishida said. "And we've made these measurements in 17 people - that's 17 more than ever before."
In order to capture the dopamine signals, especially in people with lower dopamine activity, the researchers had to develop extremely sensitive methods. 
They modified a carbon fiber electrode previously used to measure dopamine fluctuations in rodents to interface with the surgical needs of the clinical procedure in humans, to reduce the risks and surgical time for the patients. Surgeons placed the electrode in each patient's striatum, near the center of the brain.
The researchers took readings of the ultra-quick dopamine pulses as conscious patients played an investment game. They expected to see dopamine responses in direct relation to expected rewards and actual outcomes. They didn't. 
"We analyzed the dataset of about a thousand pulses of dopamine, and it was flat," said Montague, who is also a professor of physics in Virginia Tech's College of Science and director of the Computational Psychiatry Unit of the Virginia Tech Carilion Research Institute. "The signals did not distinguish between a positive reaction and a negative one."
The scientists used fast-scan cyclic voltammetry to measure the pulses of dopamine in the patients' brains. This electrochemical technique allows for near-continuous measurements of chemical activity in the brain. 
In this case, it was used to measure the dopamine signaling 10 times each second, for several minutes, while patients made financially risky decisions. 
"It was technically very challenging," Kishida said. "But, as a result, we've been able to measure changes in neurochemicals that are important for learning while people make decisions." 
Once the researchers had the measurements, they started to analyze what the dopamine was actually signaling. They used new machine-learning methods, which employ several computational tools that help scientists dive deeper into data and emerge with more nuanced information. 
"We found that dopamine tracks two factors - what happened and what could have happened," Montague said. "Our dopamine neurons appear to track whether something could have been better or worse, and this information is encoded by the rapid changes in dopamine release. These findings may start to reveal, in computational terms, what's missing in the dopamine system of Parkinson's patients."
The findings have been more than 20 years in the making, since Montague's first computational studies examining the mechanisms of dopamine signaling. 
"Dopamine encodes what are called reward-prediction errors - the ongoing difference between reward expectations and the actual rewards experienced," Montague said. "From just dopamine signals, we can see when a person expects a reward and whether the person receives the reward. But in our most recent study, we found this earlier model of reward-prediction error to be incomplete. Rather, dopamine pulses appear to combine information about what might have happened with information about what actually happened. This is an entirely new way of viewing the role of dopamine signaling in the human brain." 
The idea that "what could have been" is part of how people evaluate actual outcomes is not new. But no one expected that dopamine would be doing the job of combining this information in the human brain. 
"We married two known computational models into something new," Montague said. 
"In doing so, we found dopamine tracking and combining two streams of information into one chemical pulse." 
Now that researchers have measured multiple contributions to the individual dopamine signals, they have even more pathways to explore the human brain's learning systems in health and disease. 
"The authors of this study combine the rare opportunity to collect data directly from the depths of the brain in awake humans with sophisticated methods for extracting the neurochemical signal," said Michael Frank, an associate professor of cognitive, linguistic, and psychological sciences in the Brown Institute for Brain Science at Brown University. Frank was not involved in this study. 
The research findings also have implications for understanding other disorders of the dopamine system, according to Frank.
"The findings alter the way we think about reward-guided decision-making because it allows for the learning signal to be more informed by what 'could' have been," Frank said. "That understanding could potentially lead to more efficiently improving future choices."
Montague and his colleagues are working to understand whether their discovery applies to people who don't have Parkinson's. The scientists' prior research, using functional magnetic resonance imaging, suggested that the new model should hold true in healthy individuals as well. Yet the previous work lacked the precision of the team's new measurements.
"The ability to make this kind of measurement is a breakthrough," said Montague, who noted he does not use that word lightly. "These precise, real-time measurements of dopamine-encoded events in the living human brain will help us understand the mechanisms of decision-making in health and disease."
http://www.eurekalert.org/pub_releases/2015-11/vt-fdm112315.php?

FREE Aware in Care kit by the National Parkinson Foundation

Did you know that three out of four people with Parkinson’s disease do not receive their medications on time when staying in the hospital? People with Parkinson’s visit hospitals more often, and, combined with the great importance of the timing and dosing of Parkinson’s medications, face greater risks in the hospital.
This is why the National Parkinson Foundation (NPF) has launched the Aware in Care program, which aims to help people with Parkinson’s disease get the best care possible during a hospital stay.
To protect, prepare and empower people with Parkinson’s before, during and after a hospital visit, NPF has developed a free Aware in Care kit with tools and information to share with hospital staff during a planned or emergency hospital stay.
The kit is large enough to fit your Parkinson’s medications to take with you on your next trip to the hospital.
Each Aware in Care kit includes:
  • Parkinson’s disease ID bracelet
  • Hospital action plan
  • Medical alert card
  • Medication form
  • Pd fact sheet
  • “I Have Parkinson’s” reminder slips
  • Thank you card
  • Magnet
Aware in Care kits can be requested free of charge from by calling the NPF Helpline,
1-800-4PD-INFO (473-4636)
Please visit www.awareincare.org for more information.

What’s in the Kit?

Each Aware in Care kit is filled with useful tools and information to help a person with Parkinson’s during the next hospital visit. Each kit includes:


Aware in Care Kit

Pack your bag with your

Parkinson’s medication

and materials below.



Read about how to prepare for your next hospital visit—whether it is planned or an emergency.



Parkinson’s Disease ID Bracelet
Wear your bracelet at all times in case you are in an emergency situation and cannot communicate.

Medical Alert Card
Fill in your card with emergency contact information and place in your wallet.



Medication Form
Complete this form and keep copies in your kit for use at the hospital. If you download the form, you can fill it out on your computer before you print it out. 

Parkinson’s Disease Fact Sheet
Share the facts about Parkinson’s with hospital staff and ask that a copy be placed in your chart.

I Have Parkinson’s Reminder Slips
Share vital information about Parkinson’s disease with every member of your care team in the hospital.

Magnet
Use this magnet to display a copy of your Medication Form in your hospital.

So much downloadable information:

http://www.awareincare.org/whats-in-the-kit/

Get with the Times: Parkinson’s Diagnosis Criteria Catches Up with Latest Understanding

Nov. 23, 2015

We’ve learned a lot about Parkinson’s disease in the last 25 years (genetics, for example). However, the gold standard checklist for diagnosis — the respectable, if outdated UK Parkinson's Disease Society Brain Bank Clinical Diagnostic Criteria — hadn’t caught up.
New diagnostic criteria from an International Parkinson and Movement Disorder Society (MDS) task force comprising experts from four continents published recently in the journal Movement Disorders presents a tool that reflects our current understanding. The Michael J. Fox Foundation is currently funding a validation study of these MDS Clinical Diagnostic Criteria for Parkinson’s Disease.
We spoke to task force co-chair Ronald B. Postuma, MD, MSc, of Montreal General Hospital about the process and promise of this new tool.
MJFF: What is the current state of diagnosis? What gaps do these criteria aim to fill?
Dr. Postuma: The way we that diagnose Parkinson’s now is we document parkinsonism (the cardinal symptoms of tremor, rigidity and/or slowness) and then we decide it’s most likely Parkinson’s disease or not. There are criteria — the one that’s used most is the UK Brain Bank criteria — but they were developed over 25 years ago, and there have been many changes in the field.
But beyond that, what we do diagnostically is not fill out checkboxes as that tool is designed. Experts weigh things; they calculate things to make a decision. So with that in mind our goal is to codify what we do as experts and write it down in a systematic way so it can be applied by people who aren’t full-time Parkinson’s experts, and, importantly, to standardize diagnosis within clinical trials.
There are some absolute exclusion criteria that tell you it’s almost certainly not Parkinson’s. There are other things called red flags that make you worry about the diagnosis, but we know some people with Parkinson’s have that feature. And they’re weighted. You have to have more red flags than supportive features to rule out disease. That recapitulates the organic process when an expert diagnoses Parkinson's.
MJFF: Why is getting a diagnosis correct so important?
Dr. Postuma: A wrong diagnosis wrong in clinical care is bothersome but not always a major problem. It’s not good for predicting prognosis, but you mostly treat the alternate conditions [multiple system atrophy (MSA), progressive supranuclear palsy (PSP), etc.] in the same way. But misdiagnosis is a disaster in clinical research. If you’re testing a drug for Parkinson’s disease, and 25 percent of your population doesn’t actually have Parkinson’s, you’re in a lot of trouble. You lose a lot of power. The study has to be way bigger than it otherwise would have to be, for example.
Especially early in disease, misdiagnosis rates are as high as 30 percent. Time helps you make the diagnosis. But most studies, especially for disease modification, are looking for people early in disease.
MJFF: So what changes in our understanding of Parkinson’s do these criteria address?
Dr. Postuma: Well, recognition of the non-motor aspect is important. If you see a patient who, after five years of disease, has no non-motor features of disease at all, that’s a red flag that you might be wrong in your diagnosis. So that’s actually been added to the criteria as a red flag. Secondly, the non-motor aspects are the most important way to diagnose prodromal disease. We have published a companion piece of criteria for prodromal selection for clinical trials.
Also, if you have abnormal olfaction (ability to smell) that can be used as evidence for Parkinson’s disease now. It’s a supportive criteria because we know that 80 percent of Parkinson’s patients have lost their sense of smell. And up to 80 percent of people who have alternate causes (PSP, MSA, essential or dystonic tremor) have normal smell. So it’s actually a pretty good diagnostic tool.
Family history of Parkinson’s disease is an exclusion criteria in many old criteria, but now there are clearly familial cases.
MJFF: Why isn’t DaTscan (brain scan to assess dopamine loss) part of the process?
Dr. Postuma: A normal DaTscan is in our criteria as an absolute exclusion. Other diseases with parkinsonism (MSA, PSP) also have abnormal DaTscan, so DaTscan is not useful in the differential diagnosis of true parkinsonism. And it’s not generally available. We want these criteria to be able to be applied everywhere.
MJFF: What can you tell us about the prodromal (before appearance of symptoms) diagnostic criteria?
Dr. Postuma: This is an effort to diagnose those early stages of Parkinson’s before people are aware of parkinsonism. When we develop neuroprotective therapies, we need to intervene earlier. We consider this a research tool only for identifying patients for neuroprotective trials or for identifying patients who need to be followed further.
It’s a very unique approach. What it does is combines a variety things that increase the risk of disease — sleep patterns, smell ability, subtle motor slowing, constipation — but often only do so slightly. It’s a systematic way to add these features together mathematically to come up with the likelihood that the person is in that prodromal state of disease. Not when they’re going to convert to full PD, but to test if they have pathology in their brain.
The diagnostic strength of the information varies immensely. Constipation doubles your risk of Parkinson’s, maybe triples it at best. You have to weight that differently than something like REM sleep behavior disorder, which is associated with a 50 to 100 times increased risk of developing Parkinson’s. So you add all the information together, and it gives you an output: this person has a 40 percent risk of prodromal Parkinson’s disease therefore you probably don’t want to include them in your neuroprotective trial, which may have side effects. This person has a 95 percent so definitely is a candidate, for example.
MJFF: How did your task force develop and test these criteria?
Dr. Postuma: The executive of the MDS decided that enough things have changed that we need to work on the definition of Parkinson’s. Once we had outlined our definition, we realized that we need some criteria to reflect the new definition. So the task force quite early on decided that this would part of this job, and because we are so interested in the early stages, we decided to separate those criteria into diagnostic criteria for clinical Parkinson’s and a separate research criteria for prodromal Parkinson’s.
Dr. Daniela Berg and I held early teleconferences then wrote the initial draft. It went back and forth among the task force members, an iterative process. And then we ran it through some clinics with people who had not seen the criteria before and improved the wording, things that weren’t clear, etc.
MJFF: What are the next steps?
Dr. Postuma: Now we’re testing against true experts in diagnosis. What do the concordance rates look like? Did we get it pretty close or are there big sources of divergence we should fix?
Even today, we think that every study that uses criteria should use these ones. Why wouldn’t you? There are no other criteria that can be used in a clinical trial now that reflect our updated definition of Parkinson’s.
https://www.michaeljfox.org/foundation/news-detail.php?get-with-the-times-parkinson-diagnosis-criteria-catches-up-with-latest-understanding