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Brain malformations and seizures by impaired chaperonin function of TRiC

10 months 3 weeks ago
Science, Volume 386, Issue 6721, Page 516-525, November 2024.
Florian Kraft, Piere Rodriguez-Aliaga, Weimin Yuan, Lena Franken, Kamil Zajt, Dimah Hasan, Ting-Ting Lee, Elisabetta Flex, Andreas Hentschel, A. Micheil Innes, Bixia Zheng, Dong Sun Julia Suh, Cordula Knopp, Eva Lausberg, Jeremias Krause, Xiaomeng Zhang,…

Alcohol consumption confers lasting impacts on prefrontal cortical neuron intrinsic excitability and spontaneous neurotransmitter signaling in the aging brain in mice

10 months 3 weeks ago
Both alcohol use disorder (AUD) and cognitive decline include disruption in the balance of excitation and inhibition in the cortex, but the potential role of alcohol use on excitation and inhibition on the aging brain is unclear. We examined the effect of moderate voluntary binge alcohol consumption on the aged, pre-disease neuronal environment by measuring intrinsic excitability and spontaneous neurotransmission on prefrontal cortical pyramidal (excitatory, glutamatergic) and non-pyramidal...
Grace C Smith

Inhibition of an Alzheimer's disease-associated form of necroptosis rescues neuronal death in mouse models

10 months 3 weeks ago
Necroptosis is a regulated form of cell death that has been observed in Alzheimer's disease (AD) along with the classical pathological hallmark lesions of amyloid plaques and Tau neurofibrillary tangles. To understand the neurodegenerative process in AD, we studied the role of necroptosis in mouse models and primary mouse neurons. Using immunohistochemistry, we demonstrated activated necroptosis-related proteins in transgenic mice developing Tau pathology and in primary neurons from amyloid...
Marta J Koper

Single-cell transcriptomic and proteomic analysis of Parkinson's disease brains

10 months 3 weeks ago
Parkinson's disease (PD) is a prevalent neurodegenerative disorder, and recent evidence suggests that pathogenesis may be in part mediated by inflammatory processes, the molecular and cellular architectures of which are largely unknown. To identify and characterize selectively vulnerable brain cell populations in PD, we performed single-nucleus transcriptomics and unbiased proteomics to profile the prefrontal cortex from postmortem human brains of six individuals with late-stage PD and six...
Biqing Zhu

Measurement of α-synuclein as protein cargo in plasma extracellular vesicles

10 months 3 weeks ago
Extracellular vesicles (EVs) are released by all cells and hold great promise as a class of biomarkers. This promise has led to increased interest in measuring EV proteins from both total EVs as well as brain-derived EVs in plasma. However, measuring cargo proteins in EVs has been challenging because EVs are present at low levels, and EV isolation methods are imperfect at separating EVs from free proteins. Thus, knowing whether a protein measured after EV isolation is truly inside EVs is...
Tal Gilboa