A-Synuclein

Protein Aggregation in the ER: Calm behind the Storm

A-Synuclein /

As one of the largest organelles in eukaryotic cells, the endoplasmic reticulum (ER) plays avital role in the synthesis, folding, and assembly of secretory and membrane proteins. To maintainits homeostasis, the ER is equipped with an elaborate network of protein folding chaperones andmultiple quality control pathways whose cooperative actions safeguard the fidelity of protein biogenesis. […]

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The role of cardiovascular autonomic failure in the differential diagnosis of α-synucleinopathies

A-Synuclein, Dementia - Lewy Bodies, Pre-PD /

The α-synucleinopathies comprise a group of adult-onset neurodegenerative disorders including Parkinson’s disease (PD), multiple system atrophy (MSA), dementia with Lewy bodies (DLB,) and — as a restricted non-motor form — pure autonomic failure (PAF). Neuropathologically, the α-synucleinopathies are characterized by aggregates of misfolded α-synuclein in the central and peripheral nervous system. Cardiovascular autonomic failure is

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To search for targets of therapy that changes the course of Parkinson’s disease

A-Synuclein, Parkinson's Disease, Pre-PD /

Abstract .Background. Parkinson’s disease (PD) is a multisystem disease that requires a more comprehensive approach to its study and treatment. The purpose was to give clinical and laboratory characteristics of PD patients, in whom the onset of motor symptoms of the disease is associated with the action of precipitating factors and provide a theoretical justification

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Association Between Parkinson’s Disease and Atrial Fibrillation: A Population-Based Study

A-Synuclein, Autonmic nervous system, Parkinson's Disease, Pre-PD /

Autonomic nervous system (ANS) dysfunction contributes to several non-motor symptoms of Parkinson’s disease (PD). In addition, ANS plays a role in the genesis and maintenance of atrial fibrillation (AF). This study investigated the temporal association between PD and AF. This study demonstrated that the premotor and early stages of PD were comorbid with AF, whereas

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Effect of vagotomy on modulation of dopaminergic neurons in Parkinson’s disease

A-Synuclein, Gut-Brain axis, Parkinson's Disease, Vagal Nerve /

Our results suggest that vagotomy has protective effects onnigrostriatal dopaminergic degeneration and disease progression insubsequent Parkinson’s disease, but may be unfavorable for cognitiveperformance. The neuroprotective effect of vagotomy could be largelymediated by blocking the spread of α-synuclein from the gut to the brain,and the modulation of inflammatory response might also contribute tosome extent. CLICK TO

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An Update on the Critical Role of α-Synuclein in Parkinson’s Disease and Other Synucleinopathies: from Tissue to Cellular and Molecular Levels

A-Synuclein, Parkinson's Disease /

The aggregation of alpha-synuclein (α-Syn) plays a critical role in the development of Parkinson’s disease (PD) and other synucleinopathies. α-Syn, which is encoded by the SNCA gene, is a lysine-rich soluble amphipathic protein normally expressed in neurons. Located in the cytosolic domain, this protein has the ability to remodel itself in plasma membranes, where it

An Update on the Critical Role of α-Synuclein in Parkinson’s Disease and Other Synucleinopathies: from Tissue to Cellular and Molecular Levels Read More »

High diagnostic performance of independent alpha-synuclein seed amplification assays for detection of early Parkinson’s disease

A-Synuclein, Biomarkers /

Alpha-synuclein seed amplification assays (αSyn-SAAs) are promising diagnostic tools for Parkinson’s disease (PD) and related synucleinopathies. They enable detection of seeding-competent alpha-synuclein aggregates in living patients and have shown high diagnostic accuracy in several PD and other synucleinopathy patient cohorts. However, there has been confusion about αSyn-SAAs for their methodology, nomenclature, and relative accuracies when

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Neuropathological evidence of body-first vs. brain-first Lewy body disease

A-Synuclein, Dementia - Lewy Bodies, Parkinson's Disease /

Aggregation of alpha-synuclein into inclusion bodies, termed Lewy pathology, is a defining feature of Parkinson’s disease (PD) and Dementia with Lewy bodies (DLB). In the majority of post mortem cases, the distribution of Lewy pathology seems to follow two overarching patterns: a caudo-rostral pattern with relatively more pathology in the brainstem than in the telencephalon, and an amygdala-centered pattern with the most

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Association between CSF alpha-synuclein seeding activity and genetic status in Parkinson’s disease and dementia with Lewy bodies

A-Synuclein, Biomarkers, Dementia - Lewy Bodies, Parkinson's Disease, Pre-PD /

The clinicopathological heterogeneity in Lewy-body diseases (LBD) highlights the need for pathology-driven biomarkers in-vivo. Misfolded alpha-synuclein (α-Syn) is a lead candidate based on its crucial role in disease pathophysiology. Real-time quaking-induced conversion (RT-QuIC) analysis of CSF has recently shown high sensitivity and specificity for the detection of misfolded α-Syn in patients with Parkinson’s disease (PD) and

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