Background: Parkinson's disease (PD) is associated with autonomic dysfunction and chronic levodopa therapy has been reported to impair the autonomic control of heart rate.
Aim: Our aim was to assess the immediate effect of a single dose of levodopa on heart rate variability (HRV) in idiopathic PD.
Materials And Methods: Eleven patients of idiopathic PD (F:M =2:9, mean age 57.3±8.6 years, duration of illness 4.1±2.8 years, Hoehn and Yahr stage 2.1±0.2) on stable levodopa dosage were studied. Motor part of unified Parkinson's disease rating scale and resting Lead II electrocardiogram (ECG) recordings were performed at baseline (12 hours off medication) and after two tablets of 100/10 mg of standard levodopa/ carbidopa. ECG was recorded continuously in the first hour (H1) followed by a 15-min recording in second (H2), third (H3) and fourth (H4) hours. Artifact free 5-min segments of the ECG were analyzed offline to obtain the HRV parameters in time domain (ms) and frequency domains (ms 2 ).
Results: Significant increase was observed in standard deviation of normal to normal intervals (23.5±2.7-46.2±6.6, P<0.05), root mean square of successive differences of NN intervals (16.3±2.9-30.7±5.1, P<0.01), total power (568.9±125.7-2739±667.5, P<0.01), low frequency power (146.5±40.8-614.1±206.7, P<0.05) and high frequency power (107.4±33.9-332.7±85.9, P<0.05) in H1.
Conclusion: The results are suggestive of an improvement in the overall variability of the heart rate indicating an enhanced vagal tone.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.4103/0028-3886.86536 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Modulation of Intestinal Inflammation and Protection of Dopaminergic Neurons in Parkinson's Disease Mice through a Probiotic Formulation Targeting NLRP3 Inflammasome.
J Neuroimmune Pharmacol
January 2025
Laboratory Medicine Center, Department of Clinical Laboratory, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, PR China.
Emerging evidence highlights the significance of peripheral inflammation in the pathogenesis of Parkinson's disease (PD) and suggests the gut as a viable therapeutic target. This study aimed to explore the neuroprotective effects of the probiotic formulation VSL#3 and its underlying mechanism in a PD mouse model induced by MPTP. Following MPTP administration, the striatal levels of dopamine and its metabolites, as along with the survival rate of dopaminergic neurons in the substantia nigra, were significantly reduced in PD mice.
View Article and Find Full Text PDFLight buckets and laser beams: mechanisms and applications of photobiomodulation (PBM) therapy.
Geroscience
January 2025
National Institute On Aging, Bethesda, MD, USA.
Photobiomodulation (PBM) therapy, a non-thermal light therapy using nonionizing light sources, has shown therapeutic potential across diverse biological processes, including aging and age-associated diseases. In 2023, scientists from the National Institute on Aging (NIA) Intramural and Extramural programs convened a workshop on the topic of PBM to discuss various proposed mechanisms of PBM action, including the stimulation of mitochondrial cytochrome C oxidase, modulation of cell membrane transporters and receptors, and the activation of transforming growth factor-β1. They also reviewed potential therapeutic applications of PBM across a range of conditions, including cardiovascular disease, retinal disease, Parkinson's disease, and cognitive impairment.
View Article and Find Full Text PDFA Podcast on the Rhythms of Healing: Patient and Physician Insights on Art, Music, Dance Therapy and Creativity in Parkinson's Disease.
Neurol Ther
January 2025
Department of Medicine, North Tyneside General Hospital, Rake Lane, North Shields, NE29 8NH, UK.
This is an outline for a podcast. Parkinson's Disease (PD) is a progressive neurodegenerative disease in which there is increasing loss of dopamine neurones from the basal ganglia (Simon et al. Clin Geriatr Med.
View Article and Find Full Text PDFStatic Posture Instability as a Sensitive Biomarker for Motor Abnormalities in Pre-ataxic Spinocerebellar Ataxia Type 3 Patients.
Mov Disord
January 2025
Department of Neurology, Fujian Institute of Neurology, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China.
Background: Spinocerebellar ataxia type 3 (SCA3) is a neurodegenerative disorder, with balance instability as a feature of the disease. Balance instability often manifests before the onset of obvious ataxic symptoms in patients. However, current clinical scales exhibit limited sensitivity in characterizing changes in pre-ataxic patients.
View Article and Find Full Text PDFMagnetic Resonance-Guided Focused Ultrasound Thalamotomy in a Prospective Cohort of 52 Patients with Parkinson's Disease: A Possible Critical Role of Age and Lesion Volume for Predicting Tremor Relapse.
Mov Disord
January 2025
Department of Clinical Neurosciences, Parkinson and Movement Disorders Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy.
Background: Magnetic resonance-guided focused ultrasound (MRgFUS) thalamotomy of ventral intermediate (Vim) nucleus is useful to treat drug-resistant tremor-dominant Parkinson's disease (TdPD), but tremor relapse may occur. Predictors of relapse have been poorly investigated so far.
Objective: The aim of this study is to evaluate the role of clinico-demographic, procedural, and neuroradiological variables in determining clinical response, relapse, and adverse events (AEs) in TdPD after MRgFUS Vim-thalamotomy.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!