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New research shows that variants in two FTD–ALS risk genes impair the functioning of the endolysosomal pathway, leading to pathological intracellular accumulation of TDP43 protein.
In the first two phase II trials of therapies that target α-synuclein to treat Parkinson disease, the primary endpoints were not met. However, the limitations of these studies need to be addressed in future trials and alternative approaches to targeting α-synuclein should be pursued before α-synuclein is discounted as a target.
Genome-wide association studies have identified loci associated with neurodegenerative disease risk, but many of the implicated genetic variants are noncoding and their functional roles remain unclear. Using massively parallel reporter assays, CRISPR-based validation and genomic annotations, a new study functionally characterizes regulatory risk variants associated with Alzheimer disease and progressive supranuclear palsy.
In this Review, Vezzani et al. discuss how dysregulation of key astrocyte functions — gliotransmission, cell metabolism and immune function — contribute to the development and progression of hyperexcitability in epilepsy and consider strategies to mitigate astrocyte dysfunction.
Here, the authors discuss the potential effects of social determinants of health on multiple sclerosis risk and outcomes. They suggest that addressing these determinants of health could substantially improve the lives of individuals with multiple sclerosis and call for more research.
In this Review, the authors provide an overview of evidence that activity-regulated myelination is required for brain adaptation and learning, and discuss how dysregulation of activity-dependent myelination contributes to neurological disease and could be a new therapeutic target.
In this Perspective, the authors discuss the importance of performing well-designed observational studies on Alzheimer disease. They highlight novel approaches to enhance causal inference and discuss ways in which observational data can provide a bridge between preclinical findings and clinical trials.
