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Here, the authors discuss evidence for the involvement of the cerebellum in Parkinson disease. They cover the anatomical connections between the cerebellum and basal ganglia and how functional and connectivity alterations observed in the cerebellum of people with the disease relate to specific clinical symptoms.
Researchers in China and South Korea have developed a rapid immunodot assay to detect aquaporin 4-targeting IgG autoantibodies in the serum of individuals with neuromyelitis optica spectrum disorder.
A new study indicates that although men and women are equally likely to experience cognitive impairment after acute ischaemic stroke, there are sex differences in particular cognitive domains. Whether these differences are directly linked to biological sex is uncertain, as many factors, including age and pre-stroke factors, could contribute to cognitive outcomes.
The amyotrophic lateral sclerosis exposome is the lifetime accumulation of environmental exposures that increase disease risk and affect progression. This Review summarizes the literature that has sought to characterize aspects of the amyotrophic lateral sclerosis exposome and considers potential mechanisms of exposure-induced toxicity.
The TRACK-TBI LONG study has shown that outcomes are highly variable in the 7 years after traumatic brain injury (TBI). Although many patients remain stable, almost one-third experience declines in cognitive, psychiatric and functional state. These findings suggest that TBI is a chronic disease and that its management should change accordingly.
Endemic parkinsonism occurs only in specific locations or populations. Here, Menšíková et al. describe clusters of endemic parkinsonism and highlight that those linked to neurotoxic environmental factors seem to be disappearing, while genetically determined clusters persist.
Two recent studies leverage the same French population-based disease registry to describe real-world medication prescription patterns, patient characteristics and treatment effectiveness in people with schizophrenia. These studies also identify disparities in the health care and outcomes of these individuals compared with those of the general population.
Results from the phase III trials of the amyloid-targeting antibodies donanemab and solanezumab add further evidence that amyloid pathology is a key driver of cognitive decline in Alzheimer disease. The mixed results highlight important considerations for future trials and clinical practice.
Cholesterol has diverse roles in the brain, and precise regulation of cholesterol production and catabolism is essential for healthy brain function. This Review summarizes cholesterol regulation and function in the brain and discusses evidence of cholesterol dyshomeostasis in age-related neuropathology and a number of neurological diseases. In particular, the authors focus on Huntington disease and insights from rodent models.
Two new studies have provided important mechanistic insights into TDP-43 pathology, a hallmark of neurodegenerative conditions such as amyotrophic lateral sclerosis and frontotemporal lobar degeneration.
