Neuropathology

admin January 2, 2019

Abstract

TDP-43 is present in a high proportion of aged brains that do not meet criteria for frontotemporal lobar degeneration (FTLD). We determined whether there are distinct TDP-43 types in non-FTLD brains. From a cohort of 553 brains (Braak neurofibrillary tangle (NFT) stage 0–VI), excluding cases meeting criteria for FTLD, we identified those that had screened positive for TDP-43.… Read More...

admin January 2, 2019

Abstract

A GGGGCC hexanucleotide repeat expansion within the C9orf72 gene is the most common genetic cause of both amyotrophic lateral sclerosis and frontotemporal dementia. Sense and antisense repeat-containing transcripts undergo repeat-associated non-AUG-initiated translation to produce five dipeptide proteins (DPRs). The polyGR and polyPR DPRs are extremely toxic when expressed in Drosophila neurons.… Read More...

admin January 1, 2019

Abstract

Neuropathological analysis in Alzheimer’s disease (AD) and experimental evidence in transgenic models overexpressing frontotemporal dementia with Parkinsonism linked to chromosome 17 (FTDP-17) mutant tau suggest that amyloid-β pathology enhances the development of tau pathology. In this work, we analyzed this interaction independently of the overexpression of an FTDP-17 mutant tau, by analyzing tau pathology in wild-type (WT), 5xFAD, APP−/− and tau−/− mice after stereotaxic injection in the somatosensory cortex of short-length native human AD-PHF.… Read More...

Jurre den Haan, Tjado H. J. Morrema, Frank D. Verbraak, Johannes F. de Boer, Philip Scheltens, Annemieke J. Rozemuller, Arthur A. B. Bergen, Femke H. Bouwman and Jeroen J. Hoozemans December 29, 2018

In-vivo labeling of retinal amyloid-beta(Aβ) and tau has potential as non-invasive biomarker for Alzheimer’s disease (AD). However, literature on the presence of Aβ and phosphorylated tau (pTau) in AD retinas …

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Stefanie Beck-Wödl, Klaus Harzer, Marc Sturm, Rebecca Buchert, Olaf Rieß, Hans-Dieter Mennel, Elisabeth Latta, Axel Pagenstecher and Ursula Keber December 28, 2018

Homozygous mutation of TBC1 domain-containing kinase (TBCK) is the cause of a very recently defined severe childhood disorder, which is characterized by severe hypotonia, global developmental delay, intellectual …

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admin December 24, 2018

Abstract

Meningeal solitary fibrous tumor (SFT)/hemangiopericytoma (HPC) is a rare tumor with propensity for recurrence and metastasis. Although multiple classification schemes have been proposed, optimal risk stratification remains unclear, and the prognostic impact of fusion status is uncertain. We compared the 2016 WHO CNS tumor grading scheme (CNS-G), a three-tier system based on histopathologic phenotype and mitotic count, to the 2013 WHO soft-tissue counterpart (ST-G), a two-tier system based on mitotic count alone, in a cohort of 133 patients [59 female, 74 male; mean age 54 years (range 20–87)] with meningeal SFT/HPC.… Read More...

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