OpenAccess

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2021-09-22
10:16
OpenAccess [DZNE-2021-01207] Journal Article
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Finding New Communities: A Principle of Neuronal Network Reorganization in Alzheimer's Disease.
Brain Connectivity 11(3), 225 - 238 () [10.1089/brain.2020.0889]
Background: Graph-theoretical analyses have been previously used to investigate changes in the functional connectome in patients with Alzheimer's disease (AD). However, these analyses generally assume static organizational principles, thereby neglecting a fundamental reconfiguration of functional connections in the face of neurodegeneration. [...]
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2021-09-21
13:28
OpenAccess [DZNE-2021-01201] Journal Article
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PolyQ-expanded ataxin-3 protein levels in peripheral blood mononuclear cells correlate with clinical parameters in SCA3: a pilot study.
Journal of neurology 268(4), 1304 - 1315 () [10.1007/s00415-020-10274-y]
In view of upcoming clinical trials, quantitative molecular markers accessible in peripheral blood are of critical importance as prognostic or pharmacodynamic markers in genetic neurodegenerative diseases such as Spinocerebellar Ataxia Type 3 (SCA3), in particular for signaling target engagement. In this pilot study, we focused on the quantification of ataxin-3, the protein altered in SCA3, in human peripheral blood mononuclear cells (PBMCs) acquired from preataxic and ataxic SCA3 mutation carriers as well as healthy controls, as a molecular marker directly related to SCA3 pathophysiology. [...]
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2021-09-21
13:22
OpenAccess [DZNE-2021-01200] Journal Article (Review Article)
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Social inclusion of people with dementia – an integrative review of theoretical frameworks, methods and findings in empirical studies
Ageing and society 41(4), 773 - 793 () [10.1017/S0144686X19001338]
The social inclusion of people with dementia (PwD) is recognised as a global goal of legislation, societal initiatives and service provision. Ensuring the social inclusion of PwD in these areas implies that its dimensions and domains are clear and unambiguous. [...]
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2021-09-21
13:18
OpenAccess [DZNE-2021-01199] Journal Article
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Chronic-Progressive Dopaminergic Deficiency Does Not Induce Midbrain Neurogenesis.
Cells 10(4), 775 - () [10.3390/cells10040775]
Consecutive adult neurogenesis is a well-known phenomenon in the ventricular-subventricular zone of the lateral wall of the lateral ventricles (V-SVZ) and has been controversially discussed in so-called 'non-neurogenic' brain areas such as the periventricular regions (PVRs) of the aqueduct and the fourth ventricle. Dopamine is a known modulator of adult neural stem cell (aNSC) proliferation and dopaminergic neurogenesis in the olfactory bulb, though a possible interplay between local dopaminergic neurodegeneration and induction of aNSC proliferation in mid/hindbrain PVRs is currently enigmatic.To analyze the influence of chronic-progressive dopaminergic neurodegeneration on both consecutive adult neurogenesis in the PVRs of the V-SVZ and mid/hindbrain aNSCs in two mechanistically different transgenic animal models of Parkinson´s disease (PD).We used Thy1-m[A30P]h α synuclein mice and Leu9'Ser hypersensitive α4* nAChR mice to assess the influence of midbrain dopaminergic neuronal loss on neurogenic activity in the PVRs of the V-SVZ, the aqueduct and the fourth ventricle.In both animal models, overall proliferative activity in the V-SVZ was not altered, though the proportion of B2/activated B1 cells on all proliferating cells was reduced in the V-SVZ in Leu9'Ser hypersensitive α4* nAChR mice. [...]
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2021-09-21
13:11
OpenAccess [DZNE-2021-01198] Journal Article
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Diabetes Mellitus, Glycemic Traits, and Cerebrovascular Disease: A Mendelian Randomization Study.
Neurology 96(13), e1732 - e1742 () [10.1212/WNL.0000000000011555]
We employed Mendelian randomization to explore the effects of genetic predisposition to type 2 diabetes (T2D), hyperglycemia, insulin resistance, and pancreatic β-cell dysfunction on risk of stroke subtypes and related cerebrovascular phenotypes.We selected instruments for genetic predisposition to T2D (74,124 cases, 824,006 controls), HbA1c levels (n = 421,923), fasting glucose levels (n = 133,010), insulin resistance (n = 108,557), and β-cell dysfunction (n = 16,378) based on published genome-wide association studies. Applying 2-sample Mendelian randomization, we examined associations with ischemic stroke (60,341 cases, 454,450 controls), intracerebral hemorrhage (1,545 cases, 1,481 controls), and ischemic stroke subtypes (large artery, cardioembolic, small vessel stroke), as well as with related phenotypes (carotid atherosclerosis, imaging markers of cerebral white matter integrity, and brain atrophy).Genetic predisposition to T2D and higher HbA1c levels were associated with higher risk of any ischemic stroke, large artery stroke, and small vessel stroke. [...]
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2021-09-21
12:55
OpenAccess [DZNE-2021-01197] Journal Article
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Association of Routinely Measured Proinflammatory Biomarkers With Abnormal MRI Findings in Asphyxiated Neonates Undergoing Therapeutic Hypothermia.
Background: The neuroprotective treatment effect of therapeutic hypothermia (TH) following perinatal asphyxia may be negatively influenced by neonatal sepsis and concomitant inflammation. We aimed to correlate routinely used blood biomarkers for perinatal sepsis in cooled asphyxiated newborns with MRI findings. [...]
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2021-09-21
12:51
OpenAccess [DZNE-2021-01196] Journal Article (Review Article)
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Neutrophils in COVID-19.
Strong evidence has been accumulated since the beginning of the COVID-19 pandemic that neutrophils play an important role in the pathophysiology, particularly in those with severe disease courses. While originally considered to be a rather homogeneous cell type, recent attention to neutrophils has uncovered their fascinating transcriptional and functional diversity as well as their developmental trajectories. [...]
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2021-09-21
11:17
OpenAccess [DZNE-2021-01195] Journal Article (Review Article)
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International Consensus Based Review and Recommendations for Minimum Reporting Standards in Research on Transcutaneous Vagus Nerve Stimulation (Version 2020).
Given its non-invasive nature, there is increasing interest in the use of transcutaneous vagus nerve stimulation (tVNS) across basic, translational and clinical research. Contemporaneously, tVNS can be achieved by stimulating either the auricular branch or the cervical bundle of the vagus nerve, referred to as transcutaneous auricular vagus nerve stimulation(VNS) and transcutaneous cervical VNS, respectively. [...]
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2021-09-21
11:03
OpenAccess [DZNE-2021-01190] Journal Article
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Doxycycline Interferes With Tau Aggregation and Reduces Its Neuronal Toxicity.
Tauopathies are neurodegenerative disorders with increasing incidence and still without cure. The extensive time required for development and approval of novel therapeutics highlights the need for testing and repurposing known safe molecules. [...]
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2021-09-21
10:56
OpenAccess [DZNE-2021-01187] Journal Article
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Circuit reorganization in the Drosophila mushroom body calyx accompanies memory consolidation.
Cell reports 34(11), 108871 - () [10.1016/j.celrep.2021.108871]
The formation and consolidation of memories are complex phenomena involving synaptic plasticity, microcircuit reorganization, and the formation of multiple representations within distinct circuits. To gain insight into the structural aspects of memory consolidation, we focus on the calyx of the Drosophila mushroom body. [...]
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