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Acta Neuropathologica

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https://www.readbyqxmd.com/read/28534077/white-matter-injury-in-the-preterm-infant-pathology-and-mechanisms
#1
REVIEW
Stephen A Back
The human preterm brain is particularly susceptible to cerebral white matter injury (WMI) that disrupts the normal progression of developmental myelination. Advances in the care of preterm infants have resulted in a sustained reduction in the severity of WMI that has shifted from more severe focal necrotic lesions to milder diffuse WMI. Nevertheless, WMI remains a global health problem and the most common cause of chronic neurological morbidity from cerebral palsy and diverse neurobehavioral disabilities. Diffuse WMI involves maturation-dependent vulnerability of the oligodendrocyte (OL) lineage with selective degeneration of late oligodendrocyte progenitors (preOLs) triggered by oxidative stress and other insults...
May 22, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28527045/amyotrophic-lateral-sclerosis-like-superoxide-dismutase-1-proteinopathy-is-associated-with-neuronal-loss-in-parkinson-s-disease-brain
#2
Benjamin G Trist, Katherine M Davies, Veronica Cottam, Sian Genoud, Richard Ortega, Stéphane Roudeau, Asuncion Carmona, Kasun De Silva, Valerie Wasinger, Simon J G Lewis, Perminder Sachdev, Bradley Smith, Claire Troakes, Caroline Vance, Christopher Shaw, Safa Al-Sarraj, Helen J Ball, Glenda M Halliday, Dominic J Hare, Kay L Double
Neuronal loss in numerous neurodegenerative disorders has been linked to protein aggregation and oxidative stress. Emerging data regarding overlapping proteinopathy in traditionally distinct neurodegenerative diseases suggest that disease-modifying treatments targeting these pathological features may exhibit efficacy across multiple disorders. Here, we describe proteinopathy distinct from classic synucleinopathy, predominantly comprised of the anti-oxidant enzyme superoxide dismutase-1 (SOD1), in the Parkinson's disease brain...
May 19, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28527044/endocytic-vesicle-rupture-is-a-conserved-mechanism-of-cellular-invasion-by-amyloid-proteins
#3
William P Flavin, Luc Bousset, Zachary C Green, Yaping Chu, Stratos Skarpathiotis, Michael J Chaney, Jeffrey H Kordower, Ronald Melki, Edward M Campbell
Numerous pathological amyloid proteins spread from cell to cell during neurodegenerative disease, facilitating the propagation of cellular pathology and disease progression. Understanding the mechanism by which disease-associated amyloid protein assemblies enter target cells and induce cellular dysfunction is, therefore, key to understanding the progressive nature of such neurodegenerative diseases. In this study, we utilized an imaging-based assay to monitor the ability of disease-associated amyloid assemblies to rupture intracellular vesicles following endocytosis...
May 19, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28509946/the-multi-morbid-old-brain
#4
EDITORIAL
Johannes Attems
No abstract text is available yet for this article.
May 16, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28508101/in-depth-clinico-pathological-examination-of-rna-foci-in-a-large-cohort-of-c9orf72-expansion-carriers
#5
Mariely DeJesus-Hernandez, NiCole A Finch, Xue Wang, Tania F Gendron, Kevin F Bieniek, Michael G Heckman, Aliaksei Vasilevich, Melissa E Murray, Linda Rousseau, Rachael Weesner, Anthony Lucido, Meeia Parsons, Jeannie Chew, Keith A Josephs, Joseph E Parisi, David S Knopman, Ronald C Petersen, Bradley F Boeve, Neill R Graff-Radford, Jan de Boer, Yan W Asmann, Leonard Petrucelli, Kevin B Boylan, Dennis W Dickson, Marka van Blitterswijk, Rosa Rademakers
A growing body of evidence suggests that a loss of chromosome 9 open reading frame 72 (C9ORF72) expression, formation of dipeptide-repeat proteins, and generation of RNA foci contribute to disease pathogenesis in amyotrophic lateral sclerosis and frontotemporal dementia. Although the levels of C9ORF72 transcripts and dipeptide-repeat proteins have already been examined thoroughly, much remains unknown about the role of RNA foci in C9ORF72-linked diseases. As such, we performed a comprehensive RNA foci study in an extensive pathological cohort of C9ORF72 expansion carriers (n = 63)...
May 15, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28501893/hspb8-haploinsufficiency-causes-dominant-adult-onset-axial-and-distal-myopathy
#6
Andoni Echaniz-Laguna, Xavière Lornage, Béatrice Lannes, Raphaël Schneider, Guillaume Bierry, Nicolas Dondaine, Anne Boland, Jean-François Deleuze, Johann Böhm, Julie Thompson, Jocelyn Laporte, Valérie Biancalana
No abstract text is available yet for this article.
May 13, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28493053/regulation-of-cathepsin-d-activity-by-the-ftld-protein-progranulin
#7
LETTER
Xiaolai Zhou, Daniel H Paushter, Tuancheng Feng, Cara M Pardon, Christina S Mendoza, Fenghua Hu
No abstract text is available yet for this article.
May 10, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28488154/impact-of-multiple-pathologies-on-the-threshold-for-clinically-overt-dementia
#8
REVIEW
Alifiya Kapasi, Charles DeCarli, Julie A Schneider
Longitudinal clinical-pathological studies have increasingly recognized the importance of mixed pathologies (the coexistence of one or more neurodegenerative and cerebrovascular disease pathologies) as important factors in the development of Alzheimer's disease (AD) and other forms of dementia. Older persons with AD pathology, often have concomitant cerebrovascular disease pathologies (macroinfarcts, microinfarcts, atherosclerosis, arteriolosclerosis, cerebral amyloid angiopathy) as well as other concomitant neurodegenerative disease pathologies (Lewy bodies, TDP-43, hippocampal sclerosis)...
May 9, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28484846/erratum-to-antibody-mediated-neutralization-of-myelin-associated-ephrinb3-accelerates-cns-remyelination
#9
Yasir A Syed, Chao Zhao, Don Mahad, Wiebke Möbius, Friedrich Altmann, Franziska Foss, G A González, Aycan Sentürk, Amparo Acker-Palmer, Gert Lubec, Kathryn Lilley, Robin J M Franklin, Klaus-A Nave, Mark R N Kotter
No abstract text is available yet for this article.
May 8, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28478503/sushi-repeat-containing-protein-1-a-novel-disease-associated-molecule-in-cerebral-amyloid-angiopathy
#10
Yasuteru Inoue, Mitsuharu Ueda, Masayoshi Tasaki, Akari Takeshima, Akihito Nagatoshi, Teruaki Masuda, Yohei Misumi, Takayuki Kosaka, Toshiya Nomura, Mayumi Mizukami, Sayaka Matsumoto, Taro Yamashita, Hitoshi Takahashi, Akiyoshi Kakita, Yukio Ando
Sporadic cerebral amyloid angiopathy (CAA) is characterized by cerebrovascular amyloid beta (Aβ) deposits and causes cerebral hemorrhage and dementia. The exact molecules that co-accumulate with cerebrovascular Aβ deposits are still not fully known. In our study here, we performed proteomic analyses with microdissected leptomeningeal arteries and cerebral neocortical arterioles from 8 cases with severe CAA, 12 cases with mild CAA, and 10 control cases without CAA, and we determined the levels of highly expressed proteins in cerebral blood vessels in CAA...
May 6, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28477083/peritoneal-dialysis-reduces-amyloid-beta-plasma-levels-in-humans-and-attenuates-alzheimer-associated-phenotypes-in-an-app-ps1-mouse-model
#11
Wang-Sheng Jin, Lin-Lin Shen, Xian-Le Bu, Wei-Wei Zhang, Si-Han Chen, Zhi-Lin Huang, Jia-Xiang Xiong, Chang-Yue Gao, Zhifang Dong, Ya-Ni He, Zhi-An Hu, Hua-Dong Zhou, Weihong Song, Xin-Fu Zhou, Yi-Zheng Wang, Yan-Jiang Wang
Clearance of amyloid-beta (Aβ) from the brain is an important therapeutic strategy for Alzheimer's disease (AD). Current studies mainly focus on the central approach of Aβ clearance by introducing therapeutic agents into the brain. In a previous study, we found that peripheral tissues and organs play important roles in clearing brain-derived Aβ, suggesting that the peripheral approach of removing Aβ from the blood may also be effective for AD therapy. Here, we investigated whether peritoneal dialysis, a clinically available therapeutic method for chronic kidney disease (CKD), reduces brain Aβ burden and attenuates AD-type pathologies and cognitive impairments...
May 5, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28474103/meningiomas-induced-by-low-dose-radiation-carry-structural-variants-of-nf2-and-a-distinct-mutational-signature
#12
LETTER
Felix Sahm, Umut H Toprak, Daniel Hübschmann, Kortine Kleinheinz, Ivo Buchhalter, Martin Sill, Damian Stichel, Matthias Schick, Melanie Bewerunge-Hudler, Daniel Schrimpf, Gelareh Zadeh, Ken Aldape, Christel Herold-Mende, Katja Beck, Ori Staszewski, Marco Prinz, Carmit Ben Harosh, Roland Eils, Dominik Sturm, David T W Jones, Stefan M Pfister, Werner Paulus, Zvi Ram, Matthias Schlesner, Rachel Grossman, Andreas von Deimling
No abstract text is available yet for this article.
May 4, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28466142/reappraisal-of-tdp-43-pathology-in-ftld-u-subtypes
#13
Ian R Mackenzie, Manuela Neumann
Frontotemporal lobar degeneration with tau-negative, ubiquitin-immunoreactive (-ir) pathology (FTLD-U) is subclassified based on the type and cortical laminar distribution of neuronal inclusions. Following the discovery of the transactive response DNA-binding protein Mr 43 kD (TDP-43) as the ubiquitinated protein in most FTLD-U, the same pathological criteria have been used to classify FTLD cases based on TDP-43-ir changes. However, the fact that immunohistochemistry (IHC) for ubiquitin and TDP-43 each recognizes slightly different pathological changes in these cases means that the original FTLD-U subtype criteria may not be directly applicable for use with TDP-43 IHC...
May 2, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28447221/deleterious-abca7-mutations-and-transcript-rescue-mechanisms-in-early-onset-alzheimer-s-disease
#14
Arne De Roeck, Tobi Van den Bossche, Julie van der Zee, Jan Verheijen, Wouter De Coster, Jasper Van Dongen, Lubina Dillen, Yalda Baradaran-Heravi, Bavo Heeman, Raquel Sanchez-Valle, Albert Lladó, Benedetta Nacmias, Sandro Sorbi, Ellen Gelpi, Oriol Grau-Rivera, Estrella Gómez-Tortosa, Pau Pastor, Sara Ortega-Cubero, Maria A Pastor, Caroline Graff, Håkan Thonberg, Luisa Benussi, Roberta Ghidoni, Giuliano Binetti, Alexandre de Mendonça, Madalena Martins, Barbara Borroni, Alessandro Padovani, Maria Rosário Almeida, Isabel Santana, Janine Diehl-Schmid, Panagiotis Alexopoulos, Jordi Clarimon, Alberto Lleó, Juan Fortea, Magda Tsolaki, Maria Koutroumani, Radoslav Matěj, Zdenek Rohan, Peter De Deyn, Sebastiaan Engelborghs, Patrick Cras, Christine Van Broeckhoven, Kristel Sleegers
Premature termination codon (PTC) mutations in the ATP-Binding Cassette, Sub-Family A, Member 7 gene (ABCA7) have recently been identified as intermediate-to-high penetrant risk factor for late-onset Alzheimer's disease (LOAD). High variability, however, is observed in downstream ABCA7 mRNA and protein expression, disease penetrance, and onset age, indicative of unknown modifying factors. Here, we investigated the prevalence and disease penetrance of ABCA7 PTC mutations in a large early onset AD (EOAD)-control cohort, and examined the effect on transcript level with comprehensive third-generation long-read sequencing...
April 27, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28439722/dna-methylation-age-acceleration-is-associated-with-disease-duration-and-age-at-onset-in-c9orf72-patients
#15
Ming Zhang, Maria Carmela Tartaglia, Danielle Moreno, Christine Sato, Paul McKeever, Anna Weichert, Julia Keith, Janice Robertson, Lorne Zinman, Ekaterina Rogaeva
The repeat expansion in C9orf72 is the most common cause of amyotrophic lateral sclerosis and frontotemporal dementia. C9orf72 patients present with a wide range in disease duration and age of onset. The strongest risk factor for both syndromes is aging, which was linked to DNA methylation (DNAm) age based on the cumulative assessment of the methylation levels of 353 CpGs included on the genome-wide 450k BeadChip. DNAm age may reflect biological age better than chronological age. We conducted a genome-wide blood DNA methylation study of 46 unrelated C9orf72 patients...
April 24, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28409281/spinal-poly-ga-inclusions-in-a-c9orf72-mouse-model-trigger-motor-deficits-and-inflammation-without-neuron-loss
#16
Martin H Schludi, Lore Becker, Lillian Garrett, Tania F Gendron, Qihui Zhou, Franziska Schreiber, Bastian Popper, Leda Dimou, Tim M Strom, Juliane Winkelmann, Anne von Thaden, Kristin Rentzsch, Stephanie May, Meike Michaelsen, Benjamin M Schwenk, Jing Tan, Benedikt Schoser, Marianne Dieterich, Leonard Petrucelli, Sabine M Hölter, Wolfgang Wurst, Helmut Fuchs, Valerie Gailus-Durner, Martin Hrabe de Angelis, Thomas Klopstock, Thomas Arzberger, Dieter Edbauer
Translation of the expanded (ggggcc)n repeat in C9orf72 patients with amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD) causes abundant poly-GA inclusions. To elucidate their role in pathogenesis, we generated transgenic mice expressing codon-modified (GA)149 conjugated with cyan fluorescent protein (CFP). Transgenic mice progressively developed poly-GA inclusions predominantly in motoneurons and interneurons of the spinal cord and brain stem and in deep cerebellar nuclei. Poly-GA co-aggregated with p62, Rad23b and the newly identified Mlf2, in both mouse and patient samples...
April 13, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28401334/h3-idh-wild-type-pediatric-glioblastoma-is-comprised-of-molecularly-and-prognostically-distinct-subtypes-with-associated-oncogenic-drivers
#17
Andrey Korshunov, Daniel Schrimpf, Marina Ryzhova, Dominik Sturm, Lukas Chavez, Volker Hovestadt, Tanvi Sharma, Antje Habel, Anna Burford, Chris Jones, Olga Zheludkova, Ella Kumirova, Christof M Kramm, Andrey Golanov, David Capper, Andreas von Deimling, Stefan M Pfister, David T W Jones
Pediatric glioblastoma (pedGBM) is an extremely aggressive pediatric brain tumor, accounting for ~6% of all central nervous system neoplasms in children. Approximately half of pedGBM harbor recurrent somatic mutations in histone 3 variants or, infrequently, IDH1/2. The remaining subset of pedGBM is highly heterogeneous, and displays a variety of genomic and epigenetic features. In the current study, we aimed to further stratify an H3-/IDH-wild type (wt) pedGBM cohort assessed through genome-wide molecular profiling...
April 11, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28401333/interactions-of-pathological-proteins-in-neurodegenerative-diseases
#18
REVIEW
Tara L Spires-Jones, Johannes Attems, Dietmar Rudolf Thal
Neurodegenerative diseases such as Alzheimer's disease (AD), frontotemporal lobar degeneration (FTD), Lewy body disease (LBD), Parkinson's disease (PD), and amyotrophic lateral sclerosis (ALS) have in common that protein aggregates represent pathological hallmark lesions. Amyloid β-protein, τ-protein, α-synuclein, and TDP-43 are the most frequently aggregated proteins in these disorders. Although they are assumed to form disease-characteristic aggregates, such as amyloid plaques and neurofibrillary tangles in AD or Lewy bodies in LBD/PD, they are not restricted to these clinical presentations...
April 11, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28386765/differential-contribution-of-immune-effector-mechanisms-to-cortical-demyelination-in-multiple-sclerosis
#19
Nielsen Lagumersindez-Denis, Claudia Wrzos, Matthias Mack, Anne Winkler, Franziska van der Meer, Marie C Reinert, Heiko Hollasch, Anne Flach, Hilke Brühl, Eilish Cullen, Christina Schlumbohm, Eberhard Fuchs, Christopher Linington, Alonso Barrantes-Freer, Imke Metz, Christiane Wegner, David Liebetanz, Marco Prinz, Wolfgang Brück, Christine Stadelmann, Stefan Nessler
Cortical demyelination is a widely recognized hallmark of multiple sclerosis (MS) and correlate of disease progression and cognitive decline. The pathomechanisms initiating and driving gray matter damage are only incompletely understood. Here, we determined the infiltrating leukocyte subpopulations in 26 cortical demyelinated lesions of biopsied MS patients and assessed their contribution to cortical lesion formation in a newly developed mouse model. We find that conformation-specific anti-myelin antibodies contribute to cortical demyelination even in the absence of the classical complement pathway...
April 6, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28357566/mutant-tdp-43-within-motor-neurons-drives-disease-onset-but-not-progression-in-amyotrophic-lateral-sclerosis
#20
Dara Ditsworth, Marcus Maldonado, Melissa McAlonis-Downes, Shuying Sun, Amanda Seelman, Kevin Drenner, Eveline Arnold, Shuo-Chien Ling, Donald Pizzo, John Ravits, Don W Cleveland, Sandrine Da Cruz
Mutations in TDP-43 cause amyotrophic lateral sclerosis (ALS), a fatal paralytic disease characterized by degeneration and premature death of motor neurons. The contribution of mutant TDP-43-mediated damage within motor neurons was evaluated using mice expressing a conditional allele of an ALS-causing TDP-43 mutant (Q331K) whose broad expression throughout the central nervous system mimics endogenous TDP-43. TDP-43(Q331K) mice develop age- and mutant-dependent motor deficits from degeneration and death of motor neurons...
March 29, 2017: Acta Neuropathologica
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