Related Experiment Video
Updated: May 10, 2026

10:28
Dynamic Digital Biomarkers of Motor and Cognitive Function in Parkinson's Disease
Published on: July 24, 2019
Biomarkers in Parkinson's disease (recent update)
Sushil Sharma1, Carolyn Seungyoun Moon, Azza Khogali
1Saint James School of Medicine, Bonaire, The Netherlands. Sharma@mail.sjsm.org
Neurochemistry International
|June 25, 2013
Summary
Discovering new biomarkers for Parkinson
Area of Science:
- Neuroscience
- Biomarker Discovery
- Neurodegenerative Disorders
Background:
- Parkinson's disease (PD) is a prevalent neurodegenerative disorder affecting aging populations.
- Cardinal motor symptoms manifest after substantial nigrostriatal dopaminergic neuron loss.
- Early and accurate diagnostic tools are crucial for timely intervention and personalized treatment.
Purpose of the Study:
- To review existing and emerging biomarkers for Parkinson's disease diagnosis and prognosis.
- To highlight the potential of novel biomarkers for early detection and effective management.
- To discuss the merits and limitations of various diagnostic approaches.
Main Methods:
- Review of current literature on Parkinson's disease biomarkers.
- Classification of biomarkers into clinical, biochemical, genetic, proteomic, and neuroimaging categories.
- Discussion of advanced techniques like PET, SPECT, MRI, and single-cell profiling.
Main Results:
- Premotor biomarkers (e.g., olfactory dysfunction, REM sleep disorder) offer early detection potential.
- Neuroimaging and fluid biomarkers (CSF, blood) show promise for diagnosis and prognosis.
- Specific genes (e.g., pyridoxal kinase) and proteins (e.g., alpha-synuclein) are identified as key indicators.
- Novel proposed biomarkers include coenzyme Q10, melatonin, and metallothioneins.
Conclusions:
- A diverse range of biomarkers, from clinical signs to molecular markers, aids in PD diagnosis.
- Early identification of PD through preclinical biomarkers is essential for effective treatment.
- Continued research into novel biomarkers will improve personalized medicine approaches for Parkinson's disease.
Keywords:
1-methyl, 2-phenyl, 1, 2, 3, 6-tetrahydropyridineADALSANSAlpha-Syn(ko)Alzheimer’s diseaseBiomarkerCBCharnoly bodyDATDLBDiagnosisHDHuntington’s diseaseKRSKufor-Rakeb syndromeLBsLewy bodyMPTPMRIMRSMSMSAMT(dko)MT(trans)MTsPDPETPNSParkinson’s diseaseSISPECTamyotrophic lateral sclerosisautonomic nervous systemdementia with Lewy bodydopamine transportermagnetic resonance imagingmagnetic resonance spectroscopymetallothionein double gene knockoutmetallothionein transgenicmetallothioneinsmultiple sclerosismultiple system atrophyperipheral nervous systempositron emission tomographysingle photon emission tomographysyn knock outα-Synα-Synculein indexα-synculeinα-synculein indexRelated Concept Videos
Parkinson Disease l: Introduction
Parkinson’s disease is a chronic, progressive neurodegenerative disorder that primarily affects movement. It is characterized by motor symptoms such as resting tremors, muscle rigidity, bradykinesia (slowness of movement), and postural instability. Patients may notice hand tremors at rest, stiffness during movement, or a shuffling gait. In addition to motor features, non-motor symptoms include sleep disturbances, mood and behavioral changes, constipation, and cognitive impairment, all of which...
Parkinson Disease ll: Pathophysiology
Parkinson disease (PD) is a progressive neurodegenerative disorder primarily affecting movement, with additional non-motor features. Its pathophysiology involves complex interactions among genetic susceptibility, environmental exposures, and cellular dysfunction, including dopaminergic neuron loss, protein aggregation, and mitochondrial impairment.Selective NeurodegenerationA key feature is the degeneration of dopaminergic neurons in the substantia nigra pars compacta, leading to reduced...
Parkinson's Disease: Overview
Neurodegenerative disorders are progressive diseases that cause irreversible damage and loss to neurons in specific brain areas. Examples of these disorders include Parkinson's disease, Alzheimer's disease, Multiple Sclerosis (MS), and Amyotrophic Lateral Sclerosis (ALS). These disorders share characteristics such as proteinopathies, selective neuronal vulnerability, and a complex interplay between genetic and environmental factors. The primary therapeutic goal for these conditions is to...
Parkinson's Disease: Treatment
Neurodegenerative disorders, such as Parkinson's Disease (PD), involve the gradual and irreversible destruction of neurons in particular brain areas. These disorders exhibit standard features like proteinopathies, selective vulnerability of some neurons, and an interaction of intrinsic properties, genetics, and environmental influences in neural injury.
Parkinson's Disease is primarily a result of the loss of dopaminergic neurons in the substantia nigra pars compacta. The cornerstone of its...
Parkinson's Disease is primarily a result of the loss of dopaminergic neurons in the substantia nigra pars compacta. The cornerstone of its...
Neural Regulation
Digestion begins with a cephalic phase that prepares the digestive system to receive food. When our brain processes visual or olfactory information about food, it triggers impulses in the cranial nerves innervating the salivary glands and stomach to prepare for food.
Alterations in Muscle Tone lll
Rigidity and myotonia are distinct abnormalities of muscle tone that affect resistance and relaxation during movement. Although both involve altered muscle contraction, they arise from different neurological and muscular mechanisms.CharacteristicsRigidity is characterized by uniform resistance to passive movement across the entire range, independent of speed, affecting flexors and extensors equally. It may appear as lead-pipe rigidity (smooth, constant resistance) or cogwheel rigidity...
