News

3-Month Boxing Program Found to Ease Motor, Nonmotor Symptoms

A tailored three-month boxing exercise program significantly eased both motor and nonmotor symptoms — including depression, anxiety, sleep problems, and pain — in people with early Parkinson’s disease, a new study shows. While the program’s participants reported an improvement in their motivation, there was no evidence that boxing reduced…

Butyrate Made by Gut Bacteria Linked to Depression

Among people with Parkinson’s disease, lower levels of a bacterial compound called butyrate in the gut are associated with more severe depression, a new study indicates. Results also revealed that altered butyrate levels in Parkinson’s patients are associated with epigenetic changes in these individuals’ cells. The study, “…

Impaired Heart Rate Function Linked to Dementia in 5-Year Study

Impairment due to Parkinson’s disease of the involuntary nervous system, which controls heart rate, among other bodily functions, was associated with worse outcomes after five years — particularly relative to dementia, daily motor activities, and quality of life, a study suggested. In fact, worse cardiovascular assessment scores were linked to…

New LRRK2 Gene Mutations Linked With Familial Parkinson′s

Two new mutations in the LRRK2 gene have been identified as likely causes of familial Parkinson’s disease, a study reports. Further studies on these potential “disease-causing variants should help us to better understand how LRRK2 dysfunction causes [Parkinson’s disease],” the researchers wrote. The study “Functional Analyses of…

Denali’s DNL201 Safely Engages Target Enzyme: Multiple Studies

Denali Therapeutics‘ DNL201, an investigational therapy for Parkinson’s disease, was well tolerated in healthy volunteers and patients, and showed evidence of engaging its target protein, according to multiple preclinical and clinical studies. LRRK2, a protein associated with Parkinson’s, is also the target of BIIB122 (formerly DNL151), which is…

African Ancestry Seen to Affect Mitochondrial DNA Copy Number

People of African ancestry in South Africa with Parkinson’s disease have more copies of mitochondrial DNA within their cells than do people of similar ancestry without the condition, a study discovered. These findings contrast with studies in patients of Asian and European ancestry, who have fewer copy numbers than…

High RAS Antibody Levels May Drive Disease, But Medicines Exist

Antibodies against certain components of the renin-angiotensin system (RAS), which helps to control blood pressure, are present at higher levels in people with Parkinson’s than in those without the disease and may drive progression, a study found. These elevated levels of autoantibodies — which make nerve cells more vulnerable…