Institution
University of Graz
Education•Graz, Steiermark, Austria•
About: University of Graz is a education organization based out in Graz, Steiermark, Austria. It is known for research contribution in the topics: Population & Context (language use). The organization has 17934 authors who have published 37489 publications receiving 1110980 citations. The organization is also known as: Carolo Franciscea Graecensis & Karl Franzens Universität.
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TL;DR: The multifaceted mode of actions will make AMPs superior to antibiotics that act only on one specific target, whereupon most of these peptides are supposed to kill bacteria via membrane damage.
Abstract: Antimicrobial peptides (AMPs) have remarkably different structures as well as biological activity profiles, whereupon most of these peptides are supposed to kill bacteria via membrane damage. In order to understand their molecular mechanism and target cell specificity for Gram-positive bacteria, it is essential to consider the architecture of their cell envelopes. Before AMPs can interact with the cytoplasmic membrane of Gram-positive bacteria, they have to traverse the cell wall composed of wall- and lipoteichoic acids and peptidoglycan. While interaction of AMPs with peptidoglycan might rather facilitate penetration, interaction with anionic teichoic acids may act as either a trap for AMPs or a ladder for a route to the cytoplasmic membrane. Interaction with the cytoplasmic membrane frequently leads to lipid segregation affecting membrane domain organization, which affects membrane permeability, inhibits cell division processes or leads to delocalization of essential peripheral membrane proteins. Further, precursors of cell wall components, especially the highly conserved lipid II, are directly targeted by AMPs. Thereby, the peptides do not inhibit peptidoglycan synthesis via binding to proteins like common antibiotics, but form a complex with the precursor molecule, which in addition can promote pore formation and membrane disruption. Thus, the multifaceted mode of actions will make AMPs superior to antibiotics that act only on one specific target.
263 citations
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VU University Medical Center1, University of Genoa2, University of Graz3, Autonomous University of Barcelona4, Hebron University5, University College London6, National Institute for Health Research7, University of Oxford8, University of Siena9, Heidelberg University10, University Hospital of Basel11
TL;DR: This large multicentre study points to the complementary predictive value of atrophy and lesion volumes for predicting long term disability in MS.
Abstract: Objective To determine whether brain atrophy and lesion volumes predict subsequent 10 year clinical evolution in multiple sclerosis (MS). Design From eight MAGNIMS (MAGNetic resonance Imaging in MS) centres, we retrospectively included 261 MS patients with MR imaging at baseline and after 1–2 years, and Expanded Disability Status Scale (EDSS) scoring at baseline and after 10 years. Annualised whole brain atrophy, central brain atrophy rates and T2 lesion volumes were calculated. Patients were categorised by baseline diagnosis as primary progressive MS (n=77), clinically isolated syndromes (n=18), relapsing–remitting MS (n=97) and secondary progressive MS (n=69). Relapse onset patients were classified as minimally impaired (EDSS=0–3.5, n=111) or moderately impaired (EDSS=4–6, n=55) according to their baseline disability (and regardless of disease type). Linear regression models tested whether whole brain and central atrophy, lesion volumes at baseline, follow-up and lesion volume change predicted 10 year EDSS and MS Severity Scale scores. Results In the whole patient group, whole brain and central atrophy predicted EDSS at 10 years, corrected for imaging protocol, baseline EDSS and disease modifying treatment. The combined model with central atrophy and lesion volume change as MRI predictors predicted 10 year EDSS with R 2 =0.74 in the whole group and R 2 =0.72 in the relapse onset group. In subgroups, central atrophy was predictive in the minimally impaired relapse onset patients (R 2 =0.68), lesion volumes in moderately impaired relapse onset patients (R 2 =0.21) and whole brain atrophy in primary progressive MS (R 2 =0.34). Conclusions This large multicentre study points to the complementary predictive value of atrophy and lesion volumes for predicting long term disability in MS.
263 citations
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TL;DR: The authors' analysis suggests only a minor benefit of short acting insulin analogues in the majority of diabetic patients treated with insulin, and suggests a cautious response to the vigorous promotion of insulin analogueues.
Abstract: Short acting insulin analogue use for diabetic patients is still controversial, as reflected in many scientific debates. The objective of this review is to assess the effects of short acting insulin analogues versus regular human insulin.
262 citations
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TL;DR: It is shown that injection of serotonin into the hemolymph of subordinate, freely moving animals results in a renewed willingness of these animals to engage the dominants in further agonistic encounters and this reversal results principally from a reduction in the likelihood of retreat and an increase in the duration of fighting.
Abstract: In crustaceans, as in most animal species, the amine serotonin has been suggested to serve important roles in aggression. Here we show that injection of serotonin into the hemolymph of subordinate, freely moving animals results in a renewed willingness of these animals to engage the dominants in further agonistic encounters. By multivariate statistical analysis, we demonstrate that this reversal results principally from a reduction in the likelihood of retreat and an increase in the duration of fighting. Serotonin infusion does not alter other aspects of fighting behavior, including which animal initiates an encounter, how quickly fighting escalates, or which animal eventually retreats. Preliminary studies suggest that serotonin uptake plays an important role in this behavioral reversal.
261 citations
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University of Florence1, Charles University in Prague2, Helsinki University Central Hospital3, University of Helsinki4, Akershus University Hospital5, The Catholic University of America6, Istanbul University7, university of lille8, Carol Davila University of Medicine and Pharmacy9, Masaryk University10, Karolinska Institutet11, Polish Academy of Sciences12, UCL Institute of Neurology13, University of Graz14, University of Belgrade15, VU University Medical Center16
TL;DR: The aim is to present a peer‐reviewed evidence‐based statement for the guidance of practice for clinical neurologists, geriatricians, psychiatrists and other specialist physicians responsible for the care of patients with dementing disorders.
Abstract: Background and objectives: The last version of the EFNS dementia guidelines is from 2007. In 2010, the revised guidelines for Alzheimer’s disease (AD) were published. The current guidelines involve the revision of the dementia syndromes outside of AD, notably vascular cognitive impairment, frontotemporal lobar degeneration, dementia with Lewy bodies, corticobasal syndrome, progressive supranuclear palsy, Parkinson’s disease dementia, Huntington’s disease, prion diseases, normal-pressure hydrocephalus, limbic encephalitis and other toxic and metabolic disorders. The aim is to present a peer-reviewed evidence-based statement for the guidance of practice for clinical neurologists, geriatricians, psychiatrists and other specialist physicians responsible for the care of patients with dementing disorders. It represents a statement of minimum desirable standards for practice guidance.
261 citations
Authors
Showing all 18136 results
Name | H-index | Papers | Citations |
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David Haussler | 172 | 488 | 224960 |
Russel J. Reiter | 169 | 1646 | 121010 |
Frederik Barkhof | 154 | 1449 | 104982 |
Philip Scheltens | 140 | 1175 | 107312 |
Christopher D.M. Fletcher | 138 | 674 | 82484 |
Jennifer S. Haas | 128 | 840 | 71315 |
Jelena Krstic | 126 | 839 | 73457 |
Michael A. Kamm | 124 | 637 | 53606 |
Frances H. Arnold | 119 | 510 | 49651 |
Gert Pfurtscheller | 117 | 507 | 62873 |
Georg Kresse | 111 | 430 | 244729 |
Manfred T. Reetz | 110 | 959 | 42941 |
Alois Fürstner | 108 | 459 | 43085 |
David N. Herndon | 108 | 1227 | 54888 |
David J. Williams | 107 | 2060 | 62440 |