Matthieu Béreau, Mathilde Giffard, A. Clairet, Guillaume Degenne, Laurent Tatu, Edward Richfield, Éloi Magnin, M. Vérin, M. Auffret
{"title":"Terminal Care in Parkinson’s Disease: Real-Life Use of Continuous Subcutaneous Apomorphine Infusion to Improve Patient Comfort","authors":"Matthieu Béreau, Mathilde Giffard, A. Clairet, Guillaume Degenne, Laurent Tatu, Edward Richfield, Éloi Magnin, M. Vérin, M. Auffret","doi":"10.3233/jpd-230201","DOIUrl":"https://doi.org/10.3233/jpd-230201","url":null,"abstract":"Background: There are currently no recommendations on the therapeutic management of Parkinson’s disease (PD) patients at the end of life. Objective: To describe a cohort of patients with PD who benefited from continuous subcutaneous apomorphine infusion (CSAI) initiation at the end of their life as comfort care. Methods: This real-life cohort includes 14 PD patients, who benefited from 24-h, low-dose CSAI (0.5–3 mg/h) in the context of terminal care. Patient’s comfort (pain, rigidity, and/or ability to communicate) and occurrence of CSAI-related side-effects (nausea/vomiting, cutaneous and behavioral manifestations) were evaluated based on medical records. Results: All patients (age 62–94 years, disease duration 2–32 years) presented with late-stage PD and a compromised oral route. Treatment lasted from a few hours to 39 days. CSAI led to substantial functional improvement, with a good safety profile. Overall clinical comfort was deemed improved by the medical team, the patient, and/or caregivers. Conclusions: CSAI might be a promising approach in PD terminal care, as it reduces motor symptoms and overall discomfort, with an apparent good safety profile. Use of the apomorphine pen, sublingual film or a classic syringe pump might be considered when apomorphine pumps are not available. Larger observational cohorts and randomized controlled trials are needed to establish the efficacy and tolerability of apomorphine in the context of terminal care and more broadly, in an advance care planning perspective.","PeriodicalId":16660,"journal":{"name":"Journal of Parkinson's disease","volume":"34 12","pages":""},"PeriodicalIF":5.2,"publicationDate":"2024-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139450814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Carin Janz, Jonathan Timpka, Kristina Rosqvist, Gesine Paul, Alexander Storch, Per Odin
{"title":"Non-Motor Symptom Management: Insights into Adherence to Treatment Guidelines in Parkinson's Disease Patients.","authors":"Carin Janz, Jonathan Timpka, Kristina Rosqvist, Gesine Paul, Alexander Storch, Per Odin","doi":"10.3233/JPD-230263","DOIUrl":"10.3233/JPD-230263","url":null,"abstract":"<p><strong>Background: </strong>Non-motor symptoms (NMS) reduce quality of life in Parkinson's disease (PD) patients, who experience three times more NMS than individuals without PD. While there are international and national NMS treatment guidelines, their implication in clinical practice remains unclear.</p><p><strong>Objective: </strong>This study aimed to investigate the adherence to pharmacological NMS treatment guidelines in patients with mild to moderately severe PD.</p><p><strong>Methods: </strong>220 PD patients with ≥1 NMS based on the Non-Motor Symptom Questionnaire and a Hoehn and Yahr stage ≤4 were randomly selected from the Swedish Parkinson registry and screened for inclusion. NMS were evaluated using the International Parkinson and Movement Disorder Society-Non-Motor Rating Scale (MDS-NMS), Parkinson's Disease Sleep Scale 2, Epworth Sleepiness Scale, and Hospital Anxiety and Depression Scale. Treatment was compared with Swedish national guidelines and international guidelines from the MDS Evidence-Based Medicine Committee.</p><p><strong>Results: </strong>Among 165 included patients, the median number of NMS was 14, and in median 7 symptoms were estimated to require treatment. The most common NMS requiring treatment were pain (69%) and urinary problems (56%). Treatment of depression and constipation demonstrated the highest adherence to guidelines (79% and 77%), while dysphagia and excessive daytime sleepiness exhibited the lowest adherence (0% and 4%). On average, only 32% of NMS were treated in accordance with guidelines.</p><p><strong>Conclusions: </strong>Adherence to pharmacological guidelines for NMS in patients with mild to severe PD was low. This study highlights the need for improved evaluation and treatment of NMS to enhance symptom management and quality of life among PD patients.</p>","PeriodicalId":16660,"journal":{"name":"Journal of Parkinson's disease","volume":" ","pages":"297-312"},"PeriodicalIF":5.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10977407/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139466167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Walter Maetzler, Anat Mirelman, Andrea Pilotto, Roongroj Bhidayasiri
{"title":"Identifying Subtle Motor Deficits Before Parkinson's Disease is Diagnosed: What to Look for?","authors":"Walter Maetzler, Anat Mirelman, Andrea Pilotto, Roongroj Bhidayasiri","doi":"10.3233/JPD-230350","DOIUrl":"10.3233/JPD-230350","url":null,"abstract":"<p><p>Motor deficits typical of Parkinson's disease (PD), such as gait and balance disturbances, tremor, reduced arm swing and finger movement, and voice and breathing changes, are believed to manifest several years prior to clinical diagnosis. Here we describe the evidence for the presence and progression of motor deficits in this pre-diagnostic phase in order to provide suggestions for the design of future observational studies for an effective, quantitatively oriented investigation. On the one hand, these future studies must detect these motor deficits in as large (potentially, population-based) cohorts as possible with high sensitivity and specificity. On the other hand, they must describe the progression of these motor deficits in the pre-diagnostic phase as accurately as possible, to support the testing of the effect of pharmacological and non-pharmacological interventions. Digital technologies and artificial intelligence can substantially accelerate this process.</p>","PeriodicalId":16660,"journal":{"name":"Journal of Parkinson's disease","volume":" ","pages":"S287-S296"},"PeriodicalIF":4.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11492040/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139741290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sohaila Alshimemeri, Hamood AlSudais, Nada K Alamri, Abdulaziz M Alshoumar, Shatha K Bin Dher, Mohammed Hassan Maashi
{"title":"Burden, Anxiety, and Depression Among Caregivers of Parkinson's Disease Patients.","authors":"Sohaila Alshimemeri, Hamood AlSudais, Nada K Alamri, Abdulaziz M Alshoumar, Shatha K Bin Dher, Mohammed Hassan Maashi","doi":"10.3233/JPD-240014","DOIUrl":"10.3233/JPD-240014","url":null,"abstract":"<p><strong>Background: </strong>Parkinson's disease (PD) is a disabling neurodegenerative movement disorder. Most PD patients are looked after by caregivers who are close to them regardless of their relationship. Caregivers may experience a notable impact on their mental health as they dedicate a significant amount of time to the patient while observing the progression of the disease.</p><p><strong>Objective: </strong>The aim of this study was to evaluate the level of burden, depression, anxiety, and stress among caregivers of PD patients.</p><p><strong>Methods: </strong>We conducted a cross-sectional analysis between July and September 2023 among caregivers of PD patients following in the Movement Disorders Clinic at King Khalid University Hospital in Riyadh, Saudi Arabia, and through the Saudi Parkinson's Society. The data collection was done anonymously through an electronic self-administered questionnaire. Caregiver burden was assessed by using the validated Arabic version of the Zarit Burden Interview (ZBI) scale, and the Depression Anxiety Stress Scale (DASS) was used to assess the presence and level of anxiety and depression.</p><p><strong>Results: </strong>There were 118 caregivers (53.39% female, 33.9% aged between 35- 45 years, and 73.73% were sons/daughters) caring for 118 patients (57.63%, male, 38.98% aged between 66- 76). The ZBI score was highest among sibling caregivers. Moreover, burden scores were higher among those who provided care more frequently than others.</p><p><strong>Conclusions: </strong>Our study revealed that PD caregivers face a high risk of care burden, especially those who are siblings and spend longer periods in patient care. Additionally, female caregivers reported higher rates of depression, anxiety, and stress.</p>","PeriodicalId":16660,"journal":{"name":"Journal of Parkinson's disease","volume":" ","pages":"1495-1505"},"PeriodicalIF":4.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11492025/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142372085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kristina Kulcsarova, Matej Skorvanek, Ronald B Postuma, Daniela Berg
{"title":"Defining Parkinson's Disease: Past and Future.","authors":"Kristina Kulcsarova, Matej Skorvanek, Ronald B Postuma, Daniela Berg","doi":"10.3233/JPD-230411","DOIUrl":"10.3233/JPD-230411","url":null,"abstract":"<p><p>Parkinson's disease (PD) is the second most common still relentlessly progressive neurodegenerative disorder with a long period in which the pathophysiological process is already spreading but cardinal motor symptoms are not present. This review outlines the major developments and milestones in our understanding of PD that have shaped the way we define this disorder. Past criteria and definitions of PD have been based on clinical motor manifestations enabling diagnosis of the disease only in later symptomatic stages. Nevertheless, with advancing knowledge of disease pathophysiology and aim of early disease detection, a major shift of the diagnostic paradigm is being advocated towards a biological definition similar to other neurodegenerative disorders including Alzheimer's disease and Huntington's disease, with the ultimate goal of an earlier, disease course modifying therapy. We summarize the major pillars of this possible approach including in vivo detection of neuronal α-synuclein aggregation, neurodegeneration and genetics and outline their possible application in different contexts of use in the frame of biological PD definition.</p>","PeriodicalId":16660,"journal":{"name":"Journal of Parkinson's disease","volume":" ","pages":"S257-S271"},"PeriodicalIF":4.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11492139/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140136851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gabriela Mercado, Christopher Kaeufer, Franziska Richter, Wouter Peelaerts
{"title":"Infections in the Etiology of Parkinson's Disease and Synucleinopathies: A Renewed Perspective, Mechanistic Insights, and Therapeutic Implications.","authors":"Gabriela Mercado, Christopher Kaeufer, Franziska Richter, Wouter Peelaerts","doi":"10.3233/JPD-240195","DOIUrl":"10.3233/JPD-240195","url":null,"abstract":"<p><p>Increasing evidence suggests a potential role for infectious pathogens in the etiology of synucleinopathies, a group of age-related neurodegenerative disorders including Parkinson's disease (PD), multiple system atrophy and dementia with Lewy bodies. In this review, we discuss the link between infections and synucleinopathies from a historical perspective, present emerging evidence that supports this link, and address current research challenges with a focus on neuroinflammation. Infectious pathogens can elicit a neuroinflammatory response and modulate genetic risk in PD and related synucleinopathies. The mechanisms of how infections might be linked with synucleinopathies as well as the overlap between the immune cellular pathways affected by virulent pathogens and disease-related genetic risk factors are discussed. Here, an important role for α-synuclein in the immune response against infections is emerging. Critical methodological and knowledge gaps are addressed, and we provide new future perspectives on how to address these gaps. Understanding how infections and neuroinflammation influence synucleinopathies will be essential for the development of early diagnostic tools and novel therapies.</p>","PeriodicalId":16660,"journal":{"name":"Journal of Parkinson's disease","volume":" ","pages":"1301-1329"},"PeriodicalIF":4.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11492057/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142348604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Using Extracellular miRNA Signatures to Identify Patients with LRRK2-Related Parkinson's Disease.","authors":"Luca Jannik Braunger, Felix Knab, Thomas Gasser","doi":"10.3233/JPD-230408","DOIUrl":"10.3233/JPD-230408","url":null,"abstract":"<p><strong>Background: </strong>Mutations in the Leucine Rich Repeat Kinase 2 gene are highly relevant in both sporadic and familial cases of Parkinson's disease. Specific therapies are entering clinical trials but patient stratification remains challenging. Dysregulated microRNA expression levels have been proposed as biomarker candidates in sporadic Parkinson's disease.</p><p><strong>Objective: </strong>In this proof-of concept study we evaluate the potential of extracellular miRNA signatures to identify LRRK2-driven molecular patterns in Parkinson's disease.</p><p><strong>Methods: </strong>We measured expression levels of 91 miRNAs via RT-qPCR in ten individuals with sporadic Parkinson's disease, ten LRRK2 mutation carriers and eleven healthy controls using both plasma and cerebrospinal fluid. We compared miRNA signatures using heatmaps and t-tests. Next, we applied group sorting algorithms and tested sensitivity and specificity of their group predictions.</p><p><strong>Results: </strong>miR-29c-3p was differentially expressed between LRRK2 mutation carriers and sporadic cases, with miR-425-5p trending towards significance. Individuals clustered in principal component analysis along mutation status. Group affiliation was predicted with high accuracy in the prediction models (sensitivity up to 89%, specificity up to 70%). miRs-128-3p, 29c-3p, 223-3p, and 424-5p were identified as promising discriminators among all analyses.</p><p><strong>Conclusions: </strong>LRRK2 mutation status impacts the extracellular miRNA signature measured in plasma and separates mutation carriers from sporadic Parkinson's disease patients. Monitoring LRRK2 miRNA signatures could be an interesting approach to test drug efficacy of LRRK2-targeting therapies. In light of small sample size, the suggested approach needs to be validated in larger cohorts.</p>","PeriodicalId":16660,"journal":{"name":"Journal of Parkinson's disease","volume":" ","pages":"977-991"},"PeriodicalIF":4.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11307038/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141288218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ethan G Brown, Samuel M Goldman, Christopher S Coffey, Andrew Siderowf, Tanya Simuni, Cheryl Meng, Michael C Brumm, Chelsea Caspell-Garcia, Kenneth Marek, Caroline M Tanner
{"title":"Occupational Pesticide Exposure in Parkinson's Disease Related to GBA and LRRK2 Variants.","authors":"Ethan G Brown, Samuel M Goldman, Christopher S Coffey, Andrew Siderowf, Tanya Simuni, Cheryl Meng, Michael C Brumm, Chelsea Caspell-Garcia, Kenneth Marek, Caroline M Tanner","doi":"10.3233/JPD-240015","DOIUrl":"10.3233/JPD-240015","url":null,"abstract":"<p><strong>Background: </strong>The penetrance of common genetic risk variants for Parkinson's disease (PD) is low. Pesticide exposure increases PD risk, but how exposure affects penetrance is not well understood.</p><p><strong>Objective: </strong>To determine the relationship between occupational pesticide exposure and PD in people with LRRK2 and GBA risk variants.</p><p><strong>Methods: </strong>Participants of the Parkinson's Progression Markers Initiative (PPMI) with a LRRK2-G2019 S or GBA risk variant provided information about occupational pesticide exposure. We compared exposure in carriers with and without PD. Among carriers with PD, we used Cox proportional hazard models to compare time-to impairment in balance, cognition, and activities of daily living (ADLs) between participants with and without prior occupational pesticide exposure.</p><p><strong>Results: </strong>378 participants with a risk variant provided exposure information; 176 with LRRK2-G2019 S (54 with and 122 without PD) and 202 with GBA variants (47 with and 155 without PD). Twenty-six participants reported pesticide exposure. People with a GBA variant and occupational pesticide exposure had much higher odds of PD (aOR: 5.4, 95% CI 1.7-18.5, p < 0.01). People with a LRRK2 variant and a history of occupational pesticide exposure had non-significantly elevated odds of PD (aOR 1.3, 95% CI 0.4-4.6, p = 0.7). Among those with PD, pesticide exposure was associated with a higher risk of balance problems and cognitive impairment in LRRK2-PD and functional impairment in GBA-PD, although associations were not statistically significant.</p><p><strong>Conclusions: </strong>Occupational pesticide exposure may increase penetrance of GBA-PD and may be associated with faster symptom progression. Further studies in larger cohorts are necessary.</p>","PeriodicalId":16660,"journal":{"name":"Journal of Parkinson's disease","volume":" ","pages":"737-746"},"PeriodicalIF":4.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11191498/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141183854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tiffany Jong, Alexandra Gehrlein, Ellen Sidransky, Ravi Jagasia, Yu Chen
{"title":"Characterization of Novel Human β-glucocerebrosidase Antibodies for Parkinson's Disease Research.","authors":"Tiffany Jong, Alexandra Gehrlein, Ellen Sidransky, Ravi Jagasia, Yu Chen","doi":"10.3233/JPD-230295","DOIUrl":"10.3233/JPD-230295","url":null,"abstract":"<p><strong>Background: </strong>Mutations in GBA1, which encodes the lysosome enzyme β-glucocerebrosidase (also referred to as acid β-glucosidase or GCase), are the most common genetic risk factor for Parkinson's disease (PD) and dementia with Lewy bodies (DLB). Evidence also suggests that loss of GCase activity is implicated in PD without GBA1 mutations. Consequently, therapies targeting GCase are actively being pursued as potential strategies to modify the progression of PD and related synucleinopathies. Despite this significant interest in GCase as a therapeutic target, the lack of well-characterized GCase antibodies continues to impede progress in the development of GCase-targeted therapies.</p><p><strong>Objective: </strong>This study aims to independently evaluate human GCase (hGCase) antibodies to provide recommendations for western blot, immunofluorescence, immunoprecipitation, and AlphaLISA (Amplified Luminescent Proximity Homogeneous Assay) assays.</p><p><strong>Methods: </strong>Two mouse monoclonal antibodies, hGCase-1/17 and hGCase-1/23, were raised against hGCase using imiglucerase, the recombinant enzyme developed to treat patients, as the antigen. These novel antibodies, alongside commonly used antibodies in the field, underwent evaluation in a variety of assays.</p><p><strong>Results: </strong>The characterization of hGCase-1/17 and hGCase-1/23 using genetic models including GBA1 loss-of-function human neuroglioma H4 line and neurons differentiated from human embryonic stem cells revealed their remarkable specificity and potency in immunofluorescence and immunoprecipitation assays. Furthermore, a hGCase AlphaLISA assay with excellent sensitivity, a broad dynamic range, and suitability for high throughput applications was developed using hGCase-1/17 and hGCase-1/23, which enabled a sandwich assay configuration.</p><p><strong>Conclusions: </strong>The hGCase immunofluorescence, immunoprecipitation, and AlphaLISA assays utilizing hGCase-1/17 and hGCase-1/23 will not only facilitate improved investigations of hGCase biology, but can also serve as tools to assess the distribution and effectiveness of GCase-targeted therapies for PD and related synucleinopathies.</p>","PeriodicalId":16660,"journal":{"name":"Journal of Parkinson's disease","volume":" ","pages":"65-78"},"PeriodicalIF":5.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10836542/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139513064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Franziska Goltz, Anouk van der Heide, Rick C Helmich
{"title":"Alleviating Stress in Parkinson's Disease: Symptomatic Treatment, Disease Modification, or Both?","authors":"Franziska Goltz, Anouk van der Heide, Rick C Helmich","doi":"10.3233/JPD-230211","DOIUrl":"10.3233/JPD-230211","url":null,"abstract":"<p><p>Psychological stress, a state of mental strain caused by mentally or physically threatening situations, plays a significant role in Parkinson's disease (PD). Motor symptoms worsen during acute stress and common non-motor symptoms in PD, such as anxiety and depression, are linked to chronic stress. Although evidence in humans is lacking, animal models of PD suggest that chronic stress can accelerate dopaminergic cell death. This suggests that stress-reducing interventions have not only symptomatic, but perhaps also disease-modifying effects. Our objective was to identify the most promising strategies for stress-reduction in PD and to analyze their potential value for disease-modification. An unstructured literature search was performed, primarily focusing on papers published between 2020-2023. Several large clinical trials have tested the efficacy of aerobic exercise and mindfulness-based interventions on PD symptoms. The evidence is promising, but not definitive yet: some exercise trials found a reduction in stress-related symptoms, whereas others did not or did not report it. In the majority of trials, biological measures of stress and of disease progression are missing. Furthermore, follow-up periods were generally too short to measure disease-modifying effects. Hence, mechanisms underlying the intervention effects remain largely unclear. These effects may consist of attenuating progressive neurodegeneration (measured with MRI-markers of substantia nigra integrity or cortical thickness), or a strengthening of compensatory cerebral mechanisms (measured with functional neuroimaging), or both. Lifestyle interventions are effective for alleviating stress-related symptoms in PD. They hold potential for exerting disease-modifying effects, but new evidence in humans is necessary to fulfill that promise.</p>","PeriodicalId":16660,"journal":{"name":"Journal of Parkinson's disease","volume":" ","pages":"S147-S158"},"PeriodicalIF":4.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11380242/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139741288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}