Navigation Links
Meds May Spur Compulsive Behaviors in Some Parkinson's Patients: Study

MONDAY, Jan. 7 (HealthDay News) -- Even though some Parkinson's disease patients undergo psychological changes where they may suddenly take up gambling or compulsive eating or shopping, the cause is likely the medications they are taking and not the disease itself, a new study shows.

One expert not connected to the study said these types of behavioral issues can happen in Parkinson's patients.

Impulse control disorders "affect a small but significant number of patients, and include pathological gambling, hypersexuality [commonly referred to as "sex addiction"], compulsive eating or medication abuse," said Dr. Martin Niehammer, a neurologist at North Shore-LIJ's Movement Disorders Center, in Great Neck, NY.

What hasn't been clear is the source of these behaviors, the researchers noted.

"We've known for some time that these behaviors are more common in people taking certain Parkinson's medications, but we haven't known if the disease itself leads to an increased risk of these behaviors," study author Dr. Daniel Weintraub, of the University of Pennsylvania Perelman School of Medicine in Philadelphia, said in a news release from the journal Neurology. The study appears in the Jan. 8 issue of the journal.

Weintraub and his colleagues asked 168 people recently diagnosed with Parkinson's disease who were not yet on any medication about their symptoms of impulse control, such as compulsive gambling or shopping. They were also asked about other behaviors such as aimless wandering and pounding or excessive repetition of behaviors like handling or sorting of objects.

The patients' responses were compared to those of 143 people of similar ages who did not have the disease.

The study revealed that about 20 percent of people from each group had symptoms of impaired impulse control. The researchers concluded those with Parkinson's disease were no more or less likely to have these symptoms those without the condition.

"These results provide further evidence that impulse control disorders that occur in people with Parkinson's disease are related to the exposure to the dopamine-related drugs, not just the disease itself," Weintraub said. "More long-term studies are needed to determine if the 20 percent of people who have some symptoms of these disorders are more likely to develop impulse control disorders once they start treatment for Parkinson's."

According to Niethammer, the new study "adds to the growing body of evidence that such impulse control disorders relate to treatment and are not an intrinsic feature of Parkinson's disease."

That means that should such behaviors arise, "they are most likely related to treatment, and the medications may need to be changed or stopped if possible," he added.

Another expert said the study brings up intriguing issues.

"An interesting question is whether susceptibility to impulse control disorders development on Parkinson's disease medication is due to Parkinson disease, or other risk factors such as genetics," said Dr. Kely Changizi, co-director of the Center for Neuromodulation at th Mount Sinai Medical Center in New York City. "That is, if healthy people were given high doses of dopamine agonists, would they develop impulse control disorders at the same rate as people with Parkinson's?"

According to Changizi, "we do know that patients with restless leg syndrome, who do not have Parkinson's disease, can develop impulse control disorders when treated with higher dose dopamine agonists [a form of Parkinson's drug]. This paper is an interesting contribution to the field of movement disorders, and sheds light on former controversy."

While the study showed an association between Parkinson's medications and compulsive behaviors, it did not prove a cause-and-effect relationship.

The study was partially supported by drug makers Abbott, Biogen Idec., F. Hoffman-La Roche Ltd., GE Healthcare, Genentech and Pfizer Inc.

More information

The U.S. National Institute of Neurological Disorders and Stroke provides more information on Parkinson's disease.

-- Mary Elizabeth Dallas

SOURCE: Martin Niethammer, M.D., PhD., neurologist, North Shore-LIJ's Movement Disorders Center in Great Neck, NY; Kely Changizi, M.D., co-director, Center for Neuromodulation, Mount Sinai Medical Center; American Academy of Neurology, news release, Jan. 7, 2013

Copyright©2012 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Cell phone addiction similar to compulsive buying and credit card misuse, according to Baylor study
2. Drug addiction study offers new insight on compulsive behavior
3. Neuroscientists find excessive protein synthesis linked to autistic-like behaviors
4. Early drunkenness may be riskier than an early age at first drink for problem behaviors
5. Interventions needed to promote healthy behaviors among perinatally HIV-infected youth
6. Trickle-down anxiety: Study examines parental behaviors that create anxious children
7. Study links persistent and loud snoring in young children with problem behaviors
8. Identifying risky behaviors: The key to HIV prevention
9. Autism Speaks provides strategies to help a child with autism shows difficult behaviors
10. The bright side of death: Awareness of mortality can result in positive behaviors
11. Healthy Behaviors Extend Life After Cancer, Experts Say
Post Your Comments:
Related Image:
Meds May Spur Compulsive Behaviors in Some Parkinson's Patients: Study
(Date:12/1/2015)... CA (PRWEB) , ... December 01, 2015 , ... ... States, today announced that its iconic bottle has won top honors in Beverage World ... The Company also announced that it has been selected as a 2015 U.S.A. ...
(Date:12/1/2015)... Cambridge, MA (PRWEB) , ... December 01, 2015 , ... ... 2013, in part due to decreases in utilization of hospital and nonhospital care, according ... report, CompScope™ Medical Benchmarks for Louisiana, 16th Edition , found medical payments per ...
(Date:12/1/2015)... ... December 01, 2015 , ... ... 7th Annual 2015 Golden Bridge Business Awards under the New Products and Services ... capex web based sample management software that helps labs organize data ...
(Date:12/1/2015)... ... December 01, 2015 , ... ... the United States. Podiatrists are well aware that psychology-based patient non-compliance (disobedience of ... often catastrophic contributors to diseases of the diabetic foot. The American Board ...
(Date:12/1/2015)... IL (PRWEB) , ... December 01, 2015 , ... ... keeping their independence is everything. That is why Hollister Incorporated has launched the ... to offer this next product in the VaPro touch free catheter portfolio,” said ...
Breaking Medicine News(10 mins):
(Date:12/1/2015)... 1, 2015 Pharma Tech Outlook recently conducted ... Clinical Data Management Solution Providers - 2015 .  After ... comprising CEOs, CIOs, VCs, analysts, and the Pharma Tech ... of top 10 clinical data management solution providers (check ... 14 and 36 respectively). --> ...
(Date:12/1/2015)... Breg, Inc ., a premier provider ... it has been awarded three contracts by Novation, a ... will have access to improved pricing for Breg,s portfolio ... goods dedicated to advancing orthopedic care.  ... population, rising prevalence of chronic conditions and the health ...
(Date:12/1/2015)... , December 1, 2015 Russia ... clinical trials. 70% of new drugs registered in Europe ... Russia . --> Russia has always been ... of new drugs registered in Europe in 2015 ... --> Russia has always been a country ...
Breaking Medicine Technology: