The prion-like spreading of alpha-synuclein in Parkinson's disease: update on models and hypotheses

A Jan, NP Gonçalves, CB Vaegter, PH Jensen… - International journal of …, 2021 - mdpi.com
The pathological aggregation of the presynaptic protein α-synuclein (α-syn) and propagation
through synaptically coupled neuroanatomical tracts is increasingly thought to underlie the …

The NRF2-dependent transcriptional regulation of antioxidant defense pathways: Relevance for cell type-specific vulnerability to neurodegeneration and therapeutic …

SM Boas, KL Joyce, RM Cowell - Antioxidants, 2021 - mdpi.com
Oxidative stress has been implicated in the etiology and pathobiology of various
neurodegenerative diseases. At baseline, the cells of the nervous system have the capability …

Human stem cell-derived neurons repair circuits and restore neural function

M Xiong, Y Tao, Q Gao, B Feng, W Yan, Y Zhou… - Cell Stem Cell, 2021 - cell.com
Although cell transplantation can rescue motor defects in Parkinson's disease (PD) models,
whether and how grafts functionally repair damaged neural circuitry in the adult brain is not …

α-Synuclein-induced dysregulation of neuronal activity contributes to murine dopamine neuron vulnerability

A Dagra, DR Miller, M Lin, A Gopinath… - npj Parkinson's …, 2021 - nature.com
Pathophysiological damages and loss of function of dopamine neurons precede their
demise and contribute to the early phases of Parkinson's disease. The presence of aberrant …

[HTML][HTML] Mitochondrial dysfunction in neurodegenerative diseases: A focus on iPSC-derived neuronal models

M Trombetta-Lima, AM Sabogal-Guáqueta, AM Dolga - Cell Calcium, 2021 - Elsevier
Progressive neuronal loss is a hallmark of many neurodegenerative diseases, including
Alzheimer's and Parkinson's disease. These pathologies exhibit clear signs of inflammation …

TRPC3 and NALCN channels drive pacemaking in substantia nigra dopaminergic neurons

KB Um, S Hahn, SW Kim, YJ Lee, L Birnbaumer… - Elife, 2021 - elifesciences.org
Midbrain dopamine (DA) neurons are slow pacemakers that maintain extracellular DA
levels. During the interspike intervals, subthreshold slow depolarization underlies …

The neuroprotective effects of the CB2 agonist GW842166x in the 6-OHDA mouse model of Parkinson's disease

H Yu, X Liu, B Chen, CR Vickstrom, V Friedman… - Cells, 2021 - mdpi.com
Parkinson's disease (PD) is a chronic neurodegenerative disorder associated with
dopamine neuron loss and motor dysfunction. Neuroprotective agents that prevent …

Voltage-Gated Ca2+ Channels in Dopaminergic Substantia Nigra Neurons: Therapeutic Targets for Neuroprotection in Parkinson's Disease?

NJ Ortner - Frontiers in synaptic neuroscience, 2021 - frontiersin.org
The loss of dopamine (DA)-producing neurons in the substantia nigra pars compacta (SN)
underlies the core motor symptoms of the progressive movement disorder Parkinson's …

In Parkinson's patient-derived dopamine neurons, the triplication of α-synuclein locus induces distinctive firing pattern by impeding D2 receptor autoinhibition

M Lin, PM Mackie, F Shaerzadeh… - Acta neuropathologica …, 2021 - Springer
Pathophysiological changes in dopamine neurons precede their demise and contribute to
the early phases of Parkinson's disease (PD). Intracellular pathological inclusions of the …

Influence of energy deficiency on the subcellular processes of Substantia Nigra Pars Compacta cell for understanding Parkinsonian neurodegeneration

VR Muddapu, VS Chakravarthy - Scientific reports, 2021 - nature.com
Parkinson's disease (PD) is the second most prominent neurodegenerative disease around
the world. Although it is known that PD is caused by the loss of dopaminergic cells in …